Clone of chromium aad1ce808763f59c7a3753e08f1500a104ecc6fd refs/remotes/origin/HEAD
diff --git a/BUILD.gn b/BUILD.gn new file mode 100644 index 0000000..ec15c43 --- /dev/null +++ b/BUILD.gn
@@ -0,0 +1,134 @@ +# Copyright (c) 2013 The Chromium Authors. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +import("//url/config.gni") + +# Sets the USE_ICU_ALTERNATIVES_ON_ANDROID define based on the build flag. +config("url_icu_config") { + if (use_icu_alternatives_on_android) { + defines = [ "USE_ICU_ALTERNATIVES_ON_ANDROID=1" ] + } +} + +component("url") { + if (is_win) { + # Don't conflict with Windows' "url.dll". + output_name = "url_lib" + } + sources = [ + "android/url_jni_registrar.cc", + "android/url_jni_registrar.h", + "gurl.cc", + "gurl.h", + "origin.cc", + "origin.h", + "third_party/mozilla/url_parse.cc", + "third_party/mozilla/url_parse.h", + "url_canon.h", + "url_canon_etc.cc", + "url_canon_filesystemurl.cc", + "url_canon_fileurl.cc", + "url_canon_host.cc", + "url_canon_icu.cc", + "url_canon_icu.h", + "url_canon_internal.cc", + "url_canon_internal.h", + "url_canon_internal_file.h", + "url_canon_ip.cc", + "url_canon_ip.h", + "url_canon_mailtourl.cc", + "url_canon_path.cc", + "url_canon_pathurl.cc", + "url_canon_query.cc", + "url_canon_relative.cc", + "url_canon_stdstring.cc", + "url_canon_stdstring.h", + "url_canon_stdurl.cc", + "url_constants.cc", + "url_constants.h", + "url_export.h", + "url_file.h", + "url_parse_file.cc", + "url_parse_internal.h", + "url_util.cc", + "url_util.h", + ] + + defines = [ "URL_IMPLEMENTATION" ] + + configs += [ ":url_icu_config" ] + + if (is_win) { + cflags = [ + "/wd4267", # TODO(jschuh): crbug.com/167187 fix size_t to int truncations. + ] + } + + deps = [ + "//base", + "//base/third_party/dynamic_annotations", + "//third_party/icu:icudata", + "//third_party/icu", + ] + + if (use_icu_alternatives_on_android) { + sources -= [ + "url_canon_icu.cc", + "url_canon_icu.h", + ] + deps -= [ + "//third_party/icu:icudata", + "//third_party/icu", + ] + + sources += [ + "url_canon_icu_alternatives_android.cc", + "url_canon_icu_alternatives_android.h", + ] + } +} + +# TODO(dpranke): crbug.com/360936. Get this to build and run on Android. +if (!is_android) { + test("url_unittests") { + sources = [ + "gurl_unittest.cc", + "origin_unittest.cc", + "url_canon_icu_unittest.cc", + "url_canon_unittest.cc", + "url_parse_unittest.cc", + "url_test_utils.h", + "url_util_unittest.cc", + ] + + #if (is_posix && !is_mac && !is_ios) { + # if (use_allocator!="none") { + # deps += "//base/allocator" + # } + #} + + if (is_win) { + cflags = [ + # TODO(jschuh): crbug.com/167187 fix size_t to int truncations. + "/wd4267", + ] + } + + deps = [ + ":url", + "//base/test:run_all_unittests", + "//testing/gtest", + "//third_party/icu:icuuc", + ] + + if (use_icu_alternatives_on_android) { + sources -= [ + "url_canon_icu_unittest.cc", + ] + deps -= [ + "//third_party/icu:icuuc", + ] + } + } +}
diff --git a/DEPS b/DEPS new file mode 100644 index 0000000..9643291 --- /dev/null +++ b/DEPS
@@ -0,0 +1,13 @@ +include_rules = [ + "+jni", + + # Limit files that can depend on icu. + "-base/i18n", + "-third_party/icu", +] + +specific_include_rules = { + "url_canon_icu(\.cc|_unittest\.cc)": [ + "+third_party/icu", + ], +}
diff --git a/OWNERS b/OWNERS new file mode 100644 index 0000000..4c97692 --- /dev/null +++ b/OWNERS
@@ -0,0 +1,2 @@ +abarth@chromium.org +brettw@chromium.org
diff --git a/android/java/src/org/chromium/url/IDNStringUtil.java b/android/java/src/org/chromium/url/IDNStringUtil.java new file mode 100644 index 0000000..32000fd --- /dev/null +++ b/android/java/src/org/chromium/url/IDNStringUtil.java
@@ -0,0 +1,33 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +package org.chromium.url; + +import org.chromium.base.CalledByNative; +import org.chromium.base.JNINamespace; + +import java.net.IDN; + +/** + * This class is used to convert unicode IDN domain names to ASCII, when not + * building with ICU. + */ +@JNINamespace("url::android") +public class IDNStringUtil { + /** + * Attempts to convert a Unicode string to an ASCII string using IDN rules. + * As of May 2014, the underlying Java function IDNA2003. + * @param src String to convert. + * @return: String containing only ASCII characters on success, null on + * failure. + */ + @CalledByNative + private static String idnToASCII(String src) { + try { + return IDN.toASCII(src, IDN.USE_STD3_ASCII_RULES); + } catch (Exception e) { + return null; + } + } +} \ No newline at end of file
diff --git a/android/url_jni_registrar.cc b/android/url_jni_registrar.cc new file mode 100644 index 0000000..82a6e1b --- /dev/null +++ b/android/url_jni_registrar.cc
@@ -0,0 +1,24 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "url/android/url_jni_registrar.h" + +#ifdef USE_ICU_ALTERNATIVES_ON_ANDROID +#include "url/url_canon_icu_alternatives_android.h" +#endif + +namespace url { +namespace android { + +bool RegisterJni(JNIEnv* env) { +#ifdef USE_ICU_ALTERNATIVES_ON_ANDROID + return RegisterIcuAlternativesJni(env); +#endif + + // Do nothing if USE_ICU_ALTERNATIVES_ON_ANDROID is not defined. + return true; +} + +} // namespace android +} // namespace url
diff --git a/android/url_jni_registrar.h b/android/url_jni_registrar.h new file mode 100644 index 0000000..8fe7ded --- /dev/null +++ b/android/url_jni_registrar.h
@@ -0,0 +1,21 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_ANDROID_URL_JNI_REGISTRAR_H_ +#define URL_ANDROID_URL_JNI_REGISTRAR_H_ + +#include <jni.h> + +#include "url/url_export.h" + +namespace url { +namespace android { + +// Register all JNI bindings necessary for url. +URL_EXPORT bool RegisterJni(JNIEnv* env); + +} // namespace android +} // namespace url + +#endif // URL_ANDROID_URL_JNI_REGISTRAR_H_
diff --git a/config.gni b/config.gni new file mode 100644 index 0000000..42d335f --- /dev/null +++ b/config.gni
@@ -0,0 +1,8 @@ +# Copyright 2014 The Chromium Authors. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +declare_args() { + # Switches to using platform functions instead of ICU on Android. + use_icu_alternatives_on_android = false +}
diff --git a/gurl.cc b/gurl.cc new file mode 100644 index 0000000..b7374b1 --- /dev/null +++ b/gurl.cc
@@ -0,0 +1,531 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifdef WIN32 +#include <windows.h> +#else +#include <pthread.h> +#endif + +#include <algorithm> +#include <ostream> + +#include "url/gurl.h" + +#include "base/logging.h" +#include "url/url_canon_stdstring.h" +#include "url/url_util.h" + +namespace { + +static std::string* empty_string = NULL; +static GURL* empty_gurl = NULL; + +#ifdef WIN32 + +// Returns a static reference to an empty string for returning a reference +// when there is no underlying string. +const std::string& EmptyStringForGURL() { + // Avoid static object construction/destruction on startup/shutdown. + if (!empty_string) { + // Create the string. Be careful that we don't break in the case that this + // is being called from multiple threads. Statics are not threadsafe. + std::string* new_empty_string = new std::string; + if (InterlockedCompareExchangePointer( + reinterpret_cast<PVOID*>(&empty_string), new_empty_string, NULL)) { + // The old value was non-NULL, so no replacement was done. Another + // thread did the initialization out from under us. + delete new_empty_string; + } + } + return *empty_string; +} + +#else + +static pthread_once_t empty_string_once = PTHREAD_ONCE_INIT; +static pthread_once_t empty_gurl_once = PTHREAD_ONCE_INIT; + +void EmptyStringForGURLOnce(void) { + empty_string = new std::string; +} + +const std::string& EmptyStringForGURL() { + // Avoid static object construction/destruction on startup/shutdown. + pthread_once(&empty_string_once, EmptyStringForGURLOnce); + return *empty_string; +} + +#endif // WIN32 + +} // namespace + +GURL::GURL() : is_valid_(false) { +} + +GURL::GURL(const GURL& other) + : spec_(other.spec_), + is_valid_(other.is_valid_), + parsed_(other.parsed_) { + if (other.inner_url_) + inner_url_.reset(new GURL(*other.inner_url_)); + // Valid filesystem urls should always have an inner_url_. + DCHECK(!is_valid_ || !SchemeIsFileSystem() || inner_url_); +} + +GURL::GURL(const std::string& url_string) { + InitCanonical(url_string, true); +} + +GURL::GURL(const base::string16& url_string) { + InitCanonical(url_string, true); +} + +GURL::GURL(const std::string& url_string, RetainWhiteSpaceSelector) { + InitCanonical(url_string, false); +} + +GURL::GURL(const char* canonical_spec, + size_t canonical_spec_len, + const url::Parsed& parsed, + bool is_valid) + : spec_(canonical_spec, canonical_spec_len), + is_valid_(is_valid), + parsed_(parsed) { + InitializeFromCanonicalSpec(); +} + +GURL::GURL(std::string canonical_spec, const url::Parsed& parsed, bool is_valid) + : is_valid_(is_valid), + parsed_(parsed) { + spec_.swap(canonical_spec); + InitializeFromCanonicalSpec(); +} + +template<typename STR> +void GURL::InitCanonical(const STR& input_spec, bool trim_path_end) { + // Reserve enough room in the output for the input, plus some extra so that + // we have room if we have to escape a few things without reallocating. + spec_.reserve(input_spec.size() + 32); + url::StdStringCanonOutput output(&spec_); + is_valid_ = url::Canonicalize( + input_spec.data(), static_cast<int>(input_spec.length()), trim_path_end, + NULL, &output, &parsed_); + + output.Complete(); // Must be done before using string. + if (is_valid_ && SchemeIsFileSystem()) { + inner_url_.reset(new GURL(spec_.data(), parsed_.Length(), + *parsed_.inner_parsed(), true)); + } +} + +void GURL::InitializeFromCanonicalSpec() { + if (is_valid_ && SchemeIsFileSystem()) { + inner_url_.reset( + new GURL(spec_.data(), parsed_.Length(), + *parsed_.inner_parsed(), true)); + } + +#ifndef NDEBUG + // For testing purposes, check that the parsed canonical URL is identical to + // what we would have produced. Skip checking for invalid URLs have no meaning + // and we can't always canonicalize then reproducabely. + if (is_valid_) { + url::Component scheme; + // We can't do this check on the inner_url of a filesystem URL, as + // canonical_spec actually points to the start of the outer URL, so we'd + // end up with infinite recursion in this constructor. + if (!url::FindAndCompareScheme(spec_.data(), spec_.length(), + url::kFileSystemScheme, &scheme) || + scheme.begin == parsed_.scheme.begin) { + // We need to retain trailing whitespace on path URLs, as the |parsed_| + // spec we originally received may legitimately contain trailing white- + // space on the path or components e.g. if the #ref has been + // removed from a "foo:hello #ref" URL (see http://crbug.com/291747). + GURL test_url(spec_, RETAIN_TRAILING_PATH_WHITEPACE); + + DCHECK(test_url.is_valid_ == is_valid_); + DCHECK(test_url.spec_ == spec_); + + DCHECK(test_url.parsed_.scheme == parsed_.scheme); + DCHECK(test_url.parsed_.username == parsed_.username); + DCHECK(test_url.parsed_.password == parsed_.password); + DCHECK(test_url.parsed_.host == parsed_.host); + DCHECK(test_url.parsed_.port == parsed_.port); + DCHECK(test_url.parsed_.path == parsed_.path); + DCHECK(test_url.parsed_.query == parsed_.query); + DCHECK(test_url.parsed_.ref == parsed_.ref); + } + } +#endif +} + +GURL::~GURL() { +} + +GURL& GURL::operator=(GURL other) { + Swap(&other); + return *this; +} + +const std::string& GURL::spec() const { + if (is_valid_ || spec_.empty()) + return spec_; + + DCHECK(false) << "Trying to get the spec of an invalid URL!"; + return EmptyStringForGURL(); +} + +GURL GURL::Resolve(const std::string& relative) const { + return ResolveWithCharsetConverter(relative, NULL); +} +GURL GURL::Resolve(const base::string16& relative) const { + return ResolveWithCharsetConverter(relative, NULL); +} + +// Note: code duplicated below (it's inconvenient to use a template here). +GURL GURL::ResolveWithCharsetConverter( + const std::string& relative, + url::CharsetConverter* charset_converter) const { + // Not allowed for invalid URLs. + if (!is_valid_) + return GURL(); + + GURL result; + + // Reserve enough room in the output for the input, plus some extra so that + // we have room if we have to escape a few things without reallocating. + result.spec_.reserve(spec_.size() + 32); + url::StdStringCanonOutput output(&result.spec_); + + if (!url::ResolveRelative(spec_.data(), static_cast<int>(spec_.length()), + parsed_, relative.data(), + static_cast<int>(relative.length()), + charset_converter, &output, &result.parsed_)) { + // Error resolving, return an empty URL. + return GURL(); + } + + output.Complete(); + result.is_valid_ = true; + if (result.SchemeIsFileSystem()) { + result.inner_url_.reset( + new GURL(result.spec_.data(), result.parsed_.Length(), + *result.parsed_.inner_parsed(), true)); + } + return result; +} + +// Note: code duplicated above (it's inconvenient to use a template here). +GURL GURL::ResolveWithCharsetConverter( + const base::string16& relative, + url::CharsetConverter* charset_converter) const { + // Not allowed for invalid URLs. + if (!is_valid_) + return GURL(); + + GURL result; + + // Reserve enough room in the output for the input, plus some extra so that + // we have room if we have to escape a few things without reallocating. + result.spec_.reserve(spec_.size() + 32); + url::StdStringCanonOutput output(&result.spec_); + + if (!url::ResolveRelative(spec_.data(), static_cast<int>(spec_.length()), + parsed_, relative.data(), + static_cast<int>(relative.length()), + charset_converter, &output, &result.parsed_)) { + // Error resolving, return an empty URL. + return GURL(); + } + + output.Complete(); + result.is_valid_ = true; + if (result.SchemeIsFileSystem()) { + result.inner_url_.reset( + new GURL(result.spec_.data(), result.parsed_.Length(), + *result.parsed_.inner_parsed(), true)); + } + return result; +} + +// Note: code duplicated below (it's inconvenient to use a template here). +GURL GURL::ReplaceComponents( + const url::Replacements<char>& replacements) const { + GURL result; + + // Not allowed for invalid URLs. + if (!is_valid_) + return GURL(); + + // Reserve enough room in the output for the input, plus some extra so that + // we have room if we have to escape a few things without reallocating. + result.spec_.reserve(spec_.size() + 32); + url::StdStringCanonOutput output(&result.spec_); + + result.is_valid_ = url::ReplaceComponents( + spec_.data(), static_cast<int>(spec_.length()), parsed_, replacements, + NULL, &output, &result.parsed_); + + output.Complete(); + if (result.is_valid_ && result.SchemeIsFileSystem()) { + result.inner_url_.reset(new GURL(spec_.data(), result.parsed_.Length(), + *result.parsed_.inner_parsed(), true)); + } + return result; +} + +// Note: code duplicated above (it's inconvenient to use a template here). +GURL GURL::ReplaceComponents( + const url::Replacements<base::char16>& replacements) const { + GURL result; + + // Not allowed for invalid URLs. + if (!is_valid_) + return GURL(); + + // Reserve enough room in the output for the input, plus some extra so that + // we have room if we have to escape a few things without reallocating. + result.spec_.reserve(spec_.size() + 32); + url::StdStringCanonOutput output(&result.spec_); + + result.is_valid_ = url::ReplaceComponents( + spec_.data(), static_cast<int>(spec_.length()), parsed_, replacements, + NULL, &output, &result.parsed_); + + output.Complete(); + if (result.is_valid_ && result.SchemeIsFileSystem()) { + result.inner_url_.reset(new GURL(spec_.data(), result.parsed_.Length(), + *result.parsed_.inner_parsed(), true)); + } + return result; +} + +GURL GURL::GetOrigin() const { + // This doesn't make sense for invalid or nonstandard URLs, so return + // the empty URL + if (!is_valid_ || !IsStandard()) + return GURL(); + + if (SchemeIsFileSystem()) + return inner_url_->GetOrigin(); + + url::Replacements<char> replacements; + replacements.ClearUsername(); + replacements.ClearPassword(); + replacements.ClearPath(); + replacements.ClearQuery(); + replacements.ClearRef(); + + return ReplaceComponents(replacements); +} + +GURL GURL::GetAsReferrer() const { + if (!is_valid_ || + (!has_ref() && !has_username() && !has_password())) + return GURL(*this); + + url::Replacements<char> replacements; + replacements.ClearRef(); + replacements.ClearUsername(); + replacements.ClearPassword(); + return ReplaceComponents(replacements); +} + +GURL GURL::GetWithEmptyPath() const { + // This doesn't make sense for invalid or nonstandard URLs, so return + // the empty URL. + if (!is_valid_ || !IsStandard()) + return GURL(); + + // We could optimize this since we know that the URL is canonical, and we are + // appending a canonical path, so avoiding re-parsing. + GURL other(*this); + if (parsed_.path.len == 0) + return other; + + // Clear everything after the path. + other.parsed_.query.reset(); + other.parsed_.ref.reset(); + + // Set the path, since the path is longer than one, we can just set the + // first character and resize. + other.spec_[other.parsed_.path.begin] = '/'; + other.parsed_.path.len = 1; + other.spec_.resize(other.parsed_.path.begin + 1); + return other; +} + +bool GURL::IsStandard() const { + return url::IsStandard(spec_.data(), parsed_.scheme); +} + +bool GURL::SchemeIs(const char* lower_ascii_scheme) const { + if (parsed_.scheme.len <= 0) + return lower_ascii_scheme == NULL; + return url::LowerCaseEqualsASCII(spec_.data() + parsed_.scheme.begin, + spec_.data() + parsed_.scheme.end(), + lower_ascii_scheme); +} + +bool GURL::SchemeIsHTTPOrHTTPS() const { + return SchemeIs(url::kHttpScheme) || SchemeIs(url::kHttpsScheme); +} + +bool GURL::SchemeIsWSOrWSS() const { + return SchemeIs(url::kWsScheme) || SchemeIs(url::kWssScheme); +} + +int GURL::IntPort() const { + if (parsed_.port.is_nonempty()) + return url::ParsePort(spec_.data(), parsed_.port); + return url::PORT_UNSPECIFIED; +} + +int GURL::EffectiveIntPort() const { + int int_port = IntPort(); + if (int_port == url::PORT_UNSPECIFIED && IsStandard()) + return url::DefaultPortForScheme(spec_.data() + parsed_.scheme.begin, + parsed_.scheme.len); + return int_port; +} + +std::string GURL::ExtractFileName() const { + url::Component file_component; + url::ExtractFileName(spec_.data(), parsed_.path, &file_component); + return ComponentString(file_component); +} + +std::string GURL::PathForRequest() const { + DCHECK(parsed_.path.len > 0) << "Canonical path for requests should be non-empty"; + if (parsed_.ref.len >= 0) { + // Clip off the reference when it exists. The reference starts after the # + // sign, so we have to subtract one to also remove it. + return std::string(spec_, parsed_.path.begin, + parsed_.ref.begin - parsed_.path.begin - 1); + } + // Compute the actual path length, rather than depending on the spec's + // terminator. If we're an inner_url, our spec continues on into our outer + // url's path/query/ref. + int path_len = parsed_.path.len; + if (parsed_.query.is_valid()) + path_len = parsed_.query.end() - parsed_.path.begin; + + return std::string(spec_, parsed_.path.begin, path_len); +} + +std::string GURL::HostNoBrackets() const { + // If host looks like an IPv6 literal, strip the square brackets. + url::Component h(parsed_.host); + if (h.len >= 2 && spec_[h.begin] == '[' && spec_[h.end() - 1] == ']') { + h.begin++; + h.len -= 2; + } + return ComponentString(h); +} + +std::string GURL::GetContent() const { + return is_valid_ ? ComponentString(parsed_.GetContent()) : std::string(); +} + +bool GURL::HostIsIPAddress() const { + if (!is_valid_ || spec_.empty()) + return false; + + url::RawCanonOutputT<char, 128> ignored_output; + url::CanonHostInfo host_info; + url::CanonicalizeIPAddress(spec_.c_str(), parsed_.host, &ignored_output, + &host_info); + return host_info.IsIPAddress(); +} + +#ifdef WIN32 + +const GURL& GURL::EmptyGURL() { + // Avoid static object construction/destruction on startup/shutdown. + if (!empty_gurl) { + // Create the string. Be careful that we don't break in the case that this + // is being called from multiple threads. + GURL* new_empty_gurl = new GURL; + if (InterlockedCompareExchangePointer( + reinterpret_cast<PVOID*>(&empty_gurl), new_empty_gurl, NULL)) { + // The old value was non-NULL, so no replacement was done. Another + // thread did the initialization out from under us. + delete new_empty_gurl; + } + } + return *empty_gurl; +} + +#else + +void EmptyGURLOnce(void) { + empty_gurl = new GURL; +} + +const GURL& GURL::EmptyGURL() { + // Avoid static object construction/destruction on startup/shutdown. + pthread_once(&empty_gurl_once, EmptyGURLOnce); + return *empty_gurl; +} + +#endif // WIN32 + +bool GURL::DomainIs(const char* lower_ascii_domain, + int domain_len) const { + // Return false if this URL is not valid or domain is empty. + if (!is_valid_ || !domain_len) + return false; + + // FileSystem URLs have empty parsed_.host, so check this first. + if (SchemeIsFileSystem() && inner_url_) + return inner_url_->DomainIs(lower_ascii_domain, domain_len); + + if (!parsed_.host.is_nonempty()) + return false; + + // Check whether the host name is end with a dot. If yes, treat it + // the same as no-dot unless the input comparison domain is end + // with dot. + const char* last_pos = spec_.data() + parsed_.host.end() - 1; + int host_len = parsed_.host.len; + if ('.' == *last_pos && '.' != lower_ascii_domain[domain_len - 1]) { + last_pos--; + host_len--; + } + + // Return false if host's length is less than domain's length. + if (host_len < domain_len) + return false; + + // Compare this url whether belong specific domain. + const char* start_pos = spec_.data() + parsed_.host.begin + + host_len - domain_len; + + if (!url::LowerCaseEqualsASCII(start_pos, + last_pos + 1, + lower_ascii_domain, + lower_ascii_domain + domain_len)) + return false; + + // Check whether host has right domain start with dot, make sure we got + // right domain range. For example www.google.com has domain + // "google.com" but www.iamnotgoogle.com does not. + if ('.' != lower_ascii_domain[0] && host_len > domain_len && + '.' != *(start_pos - 1)) + return false; + + return true; +} + +void GURL::Swap(GURL* other) { + spec_.swap(other->spec_); + std::swap(is_valid_, other->is_valid_); + std::swap(parsed_, other->parsed_); + inner_url_.swap(other->inner_url_); +} + +std::ostream& operator<<(std::ostream& out, const GURL& url) { + return out << url.possibly_invalid_spec(); +}
diff --git a/gurl.h b/gurl.h new file mode 100644 index 0000000..1d388cd --- /dev/null +++ b/gurl.h
@@ -0,0 +1,412 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_GURL_H_ +#define URL_GURL_H_ + +#include <iosfwd> +#include <string> + +#include "base/memory/scoped_ptr.h" +#include "base/strings/string16.h" +#include "url/url_canon.h" +#include "url/url_canon_stdstring.h" +#include "url/url_constants.h" +#include "url/url_export.h" +#include "url/url_parse.h" + +class URL_EXPORT GURL { + public: + typedef url::StdStringReplacements<std::string> Replacements; + typedef url::StdStringReplacements<base::string16> ReplacementsW; + + // Creates an empty, invalid URL. + GURL(); + + // Copy construction is relatively inexpensive, with most of the time going + // to reallocating the string. It does not re-parse. + GURL(const GURL& other); + + // The narrow version requires the input be UTF-8. Invalid UTF-8 input will + // result in an invalid URL. + // + // The wide version should also take an encoding parameter so we know how to + // encode the query parameters. It is probably sufficient for the narrow + // version to assume the query parameter encoding should be the same as the + // input encoding. + explicit GURL(const std::string& url_string /*, output_param_encoding*/); + explicit GURL(const base::string16& url_string /*, output_param_encoding*/); + + // Constructor for URLs that have already been parsed and canonicalized. This + // is used for conversions from KURL, for example. The caller must supply all + // information associated with the URL, which must be correct and consistent. + GURL(const char* canonical_spec, + size_t canonical_spec_len, + const url::Parsed& parsed, + bool is_valid); + // Notice that we take the canonical_spec by value so that we can convert + // from WebURL without copying the string. When we call this constructor + // we pass in a temporary std::string, which lets the compiler skip the + // copy and just move the std::string into the function argument. In the + // implementation, we use swap to move the data into the GURL itself, + // which means we end up with zero copies. + GURL(std::string canonical_spec, const url::Parsed& parsed, bool is_valid); + + ~GURL(); + + GURL& operator=(GURL other); + + // Returns true when this object represents a valid parsed URL. When not + // valid, other functions will still succeed, but you will not get canonical + // data out in the format you may be expecting. Instead, we keep something + // "reasonable looking" so that the user can see how it's busted if + // displayed to them. + bool is_valid() const { + return is_valid_; + } + + // Returns true if the URL is zero-length. Note that empty URLs are also + // invalid, and is_valid() will return false for them. This is provided + // because some users may want to treat the empty case differently. + bool is_empty() const { + return spec_.empty(); + } + + // Returns the raw spec, i.e., the full text of the URL, in canonical UTF-8, + // if the URL is valid. If the URL is not valid, this will assert and return + // the empty string (for safety in release builds, to keep them from being + // misused which might be a security problem). + // + // The URL will be ASCII except the reference fragment, which may be UTF-8. + // It is guaranteed to be valid UTF-8. + // + // The exception is for empty() URLs (which are !is_valid()) but this will + // return the empty string without asserting. + // + // Used invalid_spec() below to get the unusable spec of an invalid URL. This + // separation is designed to prevent errors that may cause security problems + // that could result from the mistaken use of an invalid URL. + const std::string& spec() const; + + // Returns the potentially invalid spec for a the URL. This spec MUST NOT be + // modified or sent over the network. It is designed to be displayed in error + // messages to the user, as the apperance of the spec may explain the error. + // If the spec is valid, the valid spec will be returned. + // + // The returned string is guaranteed to be valid UTF-8. + const std::string& possibly_invalid_spec() const { + return spec_; + } + + // Getter for the raw parsed structure. This allows callers to locate parts + // of the URL within the spec themselves. Most callers should consider using + // the individual component getters below. + // + // The returned parsed structure will reference into the raw spec, which may + // or may not be valid. If you are using this to index into the spec, BE + // SURE YOU ARE USING possibly_invalid_spec() to get the spec, and that you + // don't do anything "important" with invalid specs. + const url::Parsed& parsed_for_possibly_invalid_spec() const { + return parsed_; + } + + // Defiant equality operator! + bool operator==(const GURL& other) const { + return spec_ == other.spec_; + } + bool operator!=(const GURL& other) const { + return spec_ != other.spec_; + } + + // Allows GURL to used as a key in STL (for example, a std::set or std::map). + bool operator<(const GURL& other) const { + return spec_ < other.spec_; + } + bool operator>(const GURL& other) const { + return spec_ > other.spec_; + } + + // Resolves a URL that's possibly relative to this object's URL, and returns + // it. Absolute URLs are also handled according to the rules of URLs on web + // pages. + // + // It may be impossible to resolve the URLs properly. If the input is not + // "standard" (SchemeIsStandard() == false) and the input looks relative, we + // can't resolve it. In these cases, the result will be an empty, invalid + // GURL. + // + // The result may also be a nonempty, invalid URL if the input has some kind + // of encoding error. In these cases, we will try to construct a "good" URL + // that may have meaning to the user, but it will be marked invalid. + // + // It is an error to resolve a URL relative to an invalid URL. The result + // will be the empty URL. + GURL Resolve(const std::string& relative) const; + GURL Resolve(const base::string16& relative) const; + + // Like Resolve() above but takes a character set encoder which will be used + // for any query text specified in the input. The charset converter parameter + // may be NULL, in which case it will be treated as UTF-8. + // + // TODO(brettw): These should be replaced with versions that take something + // more friendly than a raw CharsetConverter (maybe like an ICU character set + // name). + GURL ResolveWithCharsetConverter( + const std::string& relative, + url::CharsetConverter* charset_converter) const; + GURL ResolveWithCharsetConverter( + const base::string16& relative, + url::CharsetConverter* charset_converter) const; + + // Creates a new GURL by replacing the current URL's components with the + // supplied versions. See the Replacements class in url_canon.h for more. + // + // These are not particularly quick, so avoid doing mutations when possible. + // Prefer the 8-bit version when possible. + // + // It is an error to replace components of an invalid URL. The result will + // be the empty URL. + // + // Note that we use the more general url::Replacements type to give + // callers extra flexibility rather than our override. + GURL ReplaceComponents(const url::Replacements<char>& replacements) const; + GURL ReplaceComponents( + const url::Replacements<base::char16>& replacements) const; + + // A helper function that is equivalent to replacing the path with a slash + // and clearing out everything after that. We sometimes need to know just the + // scheme and the authority. If this URL is not a standard URL (it doesn't + // have the regular authority and path sections), then the result will be + // an empty, invalid GURL. Note that this *does* work for file: URLs, which + // some callers may want to filter out before calling this. + // + // It is an error to get an empty path on an invalid URL. The result + // will be the empty URL. + GURL GetWithEmptyPath() const; + + // A helper function to return a GURL containing just the scheme, host, + // and port from a URL. Equivalent to clearing any username and password, + // replacing the path with a slash, and clearing everything after that. If + // this URL is not a standard URL, then the result will be an empty, + // invalid GURL. If the URL has neither username nor password, this + // degenerates to GetWithEmptyPath(). + // + // It is an error to get the origin of an invalid URL. The result + // will be the empty URL. + GURL GetOrigin() const; + + // A helper function to return a GURL stripped from the elements that are not + // supposed to be sent as HTTP referrer: username, password and ref fragment. + // For invalid URLs the original URL will be returned. + GURL GetAsReferrer() const; + + // Returns true if the scheme for the current URL is a known "standard" + // scheme. Standard schemes have an authority and a path section. This + // includes file: and filesystem:, which some callers may want to filter out + // explicitly by calling SchemeIsFile[System]. + bool IsStandard() const; + + // Returns true if the given parameter (should be lower-case ASCII to match + // the canonicalized scheme) is the scheme for this URL. This call is more + // efficient than getting the scheme and comparing it because no copies or + // object constructions are done. + bool SchemeIs(const char* lower_ascii_scheme) const; + + // Returns true if the scheme is "http" or "https". + bool SchemeIsHTTPOrHTTPS() const; + + // Returns true is the scheme is "ws" or "wss". + bool SchemeIsWSOrWSS() const; + + // We often need to know if this is a file URL. File URLs are "standard", but + // are often treated separately by some programs. + bool SchemeIsFile() const { + return SchemeIs(url::kFileScheme); + } + + // FileSystem URLs need to be treated differently in some cases. + bool SchemeIsFileSystem() const { + return SchemeIs(url::kFileSystemScheme); + } + + // If the scheme indicates a secure connection + bool SchemeIsSecure() const { + return SchemeIs(url::kHttpsScheme) || SchemeIs(url::kWssScheme) || + (SchemeIsFileSystem() && inner_url() && inner_url()->SchemeIsSecure()); + } + + // Returns true if the scheme is "blob". + bool SchemeIsBlob() const { + return SchemeIs(url::kBlobScheme); + } + + // The "content" of the URL is everything after the scheme (skipping the + // scheme delimiting colon). It is an error to get the origin of an invalid + // URL. The result will be an empty string. + std::string GetContent() const; + + // Returns true if the hostname is an IP address. Note: this function isn't + // as cheap as a simple getter because it re-parses the hostname to verify. + // This currently identifies only IPv4 addresses (bug 822685). + bool HostIsIPAddress() const; + + // Getters for various components of the URL. The returned string will be + // empty if the component is empty or is not present. + std::string scheme() const { // Not including the colon. See also SchemeIs. + return ComponentString(parsed_.scheme); + } + std::string username() const { + return ComponentString(parsed_.username); + } + std::string password() const { + return ComponentString(parsed_.password); + } + // Note that this may be a hostname, an IPv4 address, or an IPv6 literal + // surrounded by square brackets, like "[2001:db8::1]". To exclude these + // brackets, use HostNoBrackets() below. + std::string host() const { + return ComponentString(parsed_.host); + } + std::string port() const { // Returns -1 if "default" + return ComponentString(parsed_.port); + } + std::string path() const { // Including first slash following host + return ComponentString(parsed_.path); + } + std::string query() const { // Stuff following '?' + return ComponentString(parsed_.query); + } + std::string ref() const { // Stuff following '#' + return ComponentString(parsed_.ref); + } + + // Existance querying. These functions will return true if the corresponding + // URL component exists in this URL. Note that existance is different than + // being nonempty. http://www.google.com/? has a query that just happens to + // be empty, and has_query() will return true. + bool has_scheme() const { + return parsed_.scheme.len >= 0; + } + bool has_username() const { + return parsed_.username.len >= 0; + } + bool has_password() const { + return parsed_.password.len >= 0; + } + bool has_host() const { + // Note that hosts are special, absense of host means length 0. + return parsed_.host.len > 0; + } + bool has_port() const { + return parsed_.port.len >= 0; + } + bool has_path() const { + // Note that http://www.google.com/" has a path, the path is "/". This can + // return false only for invalid or nonstandard URLs. + return parsed_.path.len >= 0; + } + bool has_query() const { + return parsed_.query.len >= 0; + } + bool has_ref() const { + return parsed_.ref.len >= 0; + } + + // Returns a parsed version of the port. Can also be any of the special + // values defined in Parsed for ExtractPort. + int IntPort() const; + + // Returns the port number of the url, or the default port number. + // If the scheme has no concept of port (or unknown default) returns + // PORT_UNSPECIFIED. + int EffectiveIntPort() const; + + // Extracts the filename portion of the path and returns it. The filename + // is everything after the last slash in the path. This may be empty. + std::string ExtractFileName() const; + + // Returns the path that should be sent to the server. This is the path, + // parameter, and query portions of the URL. It is guaranteed to be ASCII. + std::string PathForRequest() const; + + // Returns the host, excluding the square brackets surrounding IPv6 address + // literals. This can be useful for passing to getaddrinfo(). + std::string HostNoBrackets() const; + + // Returns true if this URL's host matches or is in the same domain as + // the given input string. For example if this URL was "www.google.com", + // this would match "com", "google.com", and "www.google.com + // (input domain should be lower-case ASCII to match the canonicalized + // scheme). This call is more efficient than getting the host and check + // whether host has the specific domain or not because no copies or + // object constructions are done. + // + // If function DomainIs has parameter domain_len, which means the parameter + // lower_ascii_domain does not gurantee to terminate with NULL character. + bool DomainIs(const char* lower_ascii_domain, int domain_len) const; + + // If function DomainIs only has parameter lower_ascii_domain, which means + // domain string should be terminate with NULL character. + bool DomainIs(const char* lower_ascii_domain) const { + return DomainIs(lower_ascii_domain, + static_cast<int>(strlen(lower_ascii_domain))); + } + + // Swaps the contents of this GURL object with the argument without doing + // any memory allocations. + void Swap(GURL* other); + + // Returns a reference to a singleton empty GURL. This object is for callers + // who return references but don't have anything to return in some cases. + // This function may be called from any thread. + static const GURL& EmptyGURL(); + + // Returns the inner URL of a nested URL [currently only non-null for + // filesystem: URLs]. + const GURL* inner_url() const { + return inner_url_.get(); + } + + private: + // Variant of the string parsing constructor that allows the caller to elect + // retain trailing whitespace, if any, on the passed URL spec but only if the + // scheme is one that allows trailing whitespace. The primary use-case is + // for data: URLs. In most cases, you want to use the single parameter + // constructor above. + enum RetainWhiteSpaceSelector { RETAIN_TRAILING_PATH_WHITEPACE }; + GURL(const std::string& url_string, RetainWhiteSpaceSelector); + + template<typename STR> + void InitCanonical(const STR& input_spec, bool trim_path_end); + + void InitializeFromCanonicalSpec(); + + // Returns the substring of the input identified by the given component. + std::string ComponentString(const url::Component& comp) const { + if (comp.len <= 0) + return std::string(); + return std::string(spec_, comp.begin, comp.len); + } + + // The actual text of the URL, in canonical ASCII form. + std::string spec_; + + // Set when the given URL is valid. Otherwise, we may still have a spec and + // components, but they may not identify valid resources (for example, an + // invalid port number, invalid characters in the scheme, etc.). + bool is_valid_; + + // Identified components of the canonical spec. + url::Parsed parsed_; + + // Used for nested schemes [currently only filesystem:]. + scoped_ptr<GURL> inner_url_; + + // TODO bug 684583: Add encoding for query params. +}; + +// Stream operator so GURL can be used in assertion statements. +URL_EXPORT std::ostream& operator<<(std::ostream& out, const GURL& url); + +#endif // URL_GURL_H_
diff --git a/gurl_unittest.cc b/gurl_unittest.cc new file mode 100644 index 0000000..f38d7f9 --- /dev/null +++ b/gurl_unittest.cc
@@ -0,0 +1,644 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "testing/gtest/include/gtest/gtest.h" +#include "url/gurl.h" +#include "url/url_canon.h" +#include "url/url_test_utils.h" + +// Some implementations of base/basictypes.h may define ARRAYSIZE. +// If it's not defined, we define it to the ARRAYSIZE_UNSAFE macro +// which is in our version of basictypes.h. +#ifndef ARRAYSIZE +#define ARRAYSIZE ARRAYSIZE_UNSAFE +#endif + +namespace url { + +using test_utils::WStringToUTF16; +using test_utils::ConvertUTF8ToUTF16; + +namespace { + +template<typename CHAR> +void SetupReplacement( + void (Replacements<CHAR>::*func)(const CHAR*, const Component&), + Replacements<CHAR>* replacements, + const CHAR* str) { + if (str) { + Component comp; + if (str[0]) + comp.len = static_cast<int>(strlen(str)); + (replacements->*func)(str, comp); + } +} + +// Returns the canonicalized string for the given URL string for the +// GURLTest.Types test. +std::string TypesTestCase(const char* src) { + GURL gurl(src); + return gurl.possibly_invalid_spec(); +} + +} // namespace + +// Different types of URLs should be handled differently, and handed off to +// different canonicalizers. +TEST(GURLTest, Types) { + // URLs with unknown schemes should be treated as path URLs, even when they + // have things like "://". + EXPECT_EQ("something:///HOSTNAME.com/", + TypesTestCase("something:///HOSTNAME.com/")); + + // In the reverse, known schemes should always trigger standard URL handling. + EXPECT_EQ("http://hostname.com/", TypesTestCase("http:HOSTNAME.com")); + EXPECT_EQ("http://hostname.com/", TypesTestCase("http:/HOSTNAME.com")); + EXPECT_EQ("http://hostname.com/", TypesTestCase("http://HOSTNAME.com")); + EXPECT_EQ("http://hostname.com/", TypesTestCase("http:///HOSTNAME.com")); + +#ifdef WIN32 + // URLs that look like absolute Windows drive specs. + EXPECT_EQ("file:///C:/foo.txt", TypesTestCase("c:\\foo.txt")); + EXPECT_EQ("file:///Z:/foo.txt", TypesTestCase("Z|foo.txt")); + EXPECT_EQ("file://server/foo.txt", TypesTestCase("\\\\server\\foo.txt")); + EXPECT_EQ("file://server/foo.txt", TypesTestCase("//server/foo.txt")); +#endif +} + +// Test the basic creation and querying of components in a GURL. We assume +// the parser is already tested and works, so we are mostly interested if the +// object does the right thing with the results. +TEST(GURLTest, Components) { + GURL url(WStringToUTF16(L"http://user:pass@google.com:99/foo;bar?q=a#ref")); + EXPECT_TRUE(url.is_valid()); + EXPECT_TRUE(url.SchemeIs("http")); + EXPECT_FALSE(url.SchemeIsFile()); + + // This is the narrow version of the URL, which should match the wide input. + EXPECT_EQ("http://user:pass@google.com:99/foo;bar?q=a#ref", url.spec()); + + EXPECT_EQ("http", url.scheme()); + EXPECT_EQ("user", url.username()); + EXPECT_EQ("pass", url.password()); + EXPECT_EQ("google.com", url.host()); + EXPECT_EQ("99", url.port()); + EXPECT_EQ(99, url.IntPort()); + EXPECT_EQ("/foo;bar", url.path()); + EXPECT_EQ("q=a", url.query()); + EXPECT_EQ("ref", url.ref()); + + // Test parsing userinfo with special characters. + GURL url_special_pass("http://user:%40!$&'()*+,;=:@google.com:12345"); + EXPECT_TRUE(url_special_pass.is_valid()); + // GURL canonicalizes some delimiters. + EXPECT_EQ("%40!$&%27()*+,%3B%3D%3A", url_special_pass.password()); + EXPECT_EQ("google.com", url_special_pass.host()); + EXPECT_EQ("12345", url_special_pass.port()); +} + +TEST(GURLTest, Empty) { + GURL url; + EXPECT_FALSE(url.is_valid()); + EXPECT_EQ("", url.spec()); + + EXPECT_EQ("", url.scheme()); + EXPECT_EQ("", url.username()); + EXPECT_EQ("", url.password()); + EXPECT_EQ("", url.host()); + EXPECT_EQ("", url.port()); + EXPECT_EQ(PORT_UNSPECIFIED, url.IntPort()); + EXPECT_EQ("", url.path()); + EXPECT_EQ("", url.query()); + EXPECT_EQ("", url.ref()); +} + +TEST(GURLTest, Copy) { + GURL url(WStringToUTF16(L"http://user:pass@google.com:99/foo;bar?q=a#ref")); + + GURL url2(url); + EXPECT_TRUE(url2.is_valid()); + + EXPECT_EQ("http://user:pass@google.com:99/foo;bar?q=a#ref", url2.spec()); + EXPECT_EQ("http", url2.scheme()); + EXPECT_EQ("user", url2.username()); + EXPECT_EQ("pass", url2.password()); + EXPECT_EQ("google.com", url2.host()); + EXPECT_EQ("99", url2.port()); + EXPECT_EQ(99, url2.IntPort()); + EXPECT_EQ("/foo;bar", url2.path()); + EXPECT_EQ("q=a", url2.query()); + EXPECT_EQ("ref", url2.ref()); + + // Copying of invalid URL should be invalid + GURL invalid; + GURL invalid2(invalid); + EXPECT_FALSE(invalid2.is_valid()); + EXPECT_EQ("", invalid2.spec()); + EXPECT_EQ("", invalid2.scheme()); + EXPECT_EQ("", invalid2.username()); + EXPECT_EQ("", invalid2.password()); + EXPECT_EQ("", invalid2.host()); + EXPECT_EQ("", invalid2.port()); + EXPECT_EQ(PORT_UNSPECIFIED, invalid2.IntPort()); + EXPECT_EQ("", invalid2.path()); + EXPECT_EQ("", invalid2.query()); + EXPECT_EQ("", invalid2.ref()); +} + +TEST(GURLTest, Assign) { + GURL url(WStringToUTF16(L"http://user:pass@google.com:99/foo;bar?q=a#ref")); + + GURL url2; + url2 = url; + EXPECT_TRUE(url2.is_valid()); + + EXPECT_EQ("http://user:pass@google.com:99/foo;bar?q=a#ref", url2.spec()); + EXPECT_EQ("http", url2.scheme()); + EXPECT_EQ("user", url2.username()); + EXPECT_EQ("pass", url2.password()); + EXPECT_EQ("google.com", url2.host()); + EXPECT_EQ("99", url2.port()); + EXPECT_EQ(99, url2.IntPort()); + EXPECT_EQ("/foo;bar", url2.path()); + EXPECT_EQ("q=a", url2.query()); + EXPECT_EQ("ref", url2.ref()); + + // Assignment of invalid URL should be invalid + GURL invalid; + GURL invalid2; + invalid2 = invalid; + EXPECT_FALSE(invalid2.is_valid()); + EXPECT_EQ("", invalid2.spec()); + EXPECT_EQ("", invalid2.scheme()); + EXPECT_EQ("", invalid2.username()); + EXPECT_EQ("", invalid2.password()); + EXPECT_EQ("", invalid2.host()); + EXPECT_EQ("", invalid2.port()); + EXPECT_EQ(PORT_UNSPECIFIED, invalid2.IntPort()); + EXPECT_EQ("", invalid2.path()); + EXPECT_EQ("", invalid2.query()); + EXPECT_EQ("", invalid2.ref()); +} + +// This is a regression test for http://crbug.com/309975 . +TEST(GURLTest, SelfAssign) { + GURL a("filesystem:http://example.com/temporary/"); + // This should not crash. + a = a; +} + +TEST(GURLTest, CopyFileSystem) { + GURL url(WStringToUTF16(L"filesystem:https://user:pass@google.com:99/t/foo;bar?q=a#ref")); + + GURL url2(url); + EXPECT_TRUE(url2.is_valid()); + + EXPECT_EQ("filesystem:https://user:pass@google.com:99/t/foo;bar?q=a#ref", url2.spec()); + EXPECT_EQ("filesystem", url2.scheme()); + EXPECT_EQ("", url2.username()); + EXPECT_EQ("", url2.password()); + EXPECT_EQ("", url2.host()); + EXPECT_EQ("", url2.port()); + EXPECT_EQ(PORT_UNSPECIFIED, url2.IntPort()); + EXPECT_EQ("/foo;bar", url2.path()); + EXPECT_EQ("q=a", url2.query()); + EXPECT_EQ("ref", url2.ref()); + + const GURL* inner = url2.inner_url(); + ASSERT_TRUE(inner); + EXPECT_EQ("https", inner->scheme()); + EXPECT_EQ("user", inner->username()); + EXPECT_EQ("pass", inner->password()); + EXPECT_EQ("google.com", inner->host()); + EXPECT_EQ("99", inner->port()); + EXPECT_EQ(99, inner->IntPort()); + EXPECT_EQ("/t", inner->path()); + EXPECT_EQ("", inner->query()); + EXPECT_EQ("", inner->ref()); +} + +TEST(GURLTest, IsValid) { + const char* valid_cases[] = { + "http://google.com", + "unknown://google.com", + "http://user:pass@google.com", + "http://google.com:12345", + "http://google.com/path", + "http://google.com//path", + "http://google.com?k=v#fragment", + "http://user:pass@google.com:12345/path?k=v#fragment", + "http:/path", + "http:path", + "://google.com", + }; + for (size_t i = 0; i < ARRAYSIZE(valid_cases); i++) { + EXPECT_TRUE(GURL(valid_cases[i]).is_valid()) + << "Case: " << valid_cases[i]; + } + + const char* invalid_cases[] = { + "http://?k=v", + "http:://google.com", + "http//google.com", + "http://google.com:12three45", + "path", + }; + for (size_t i = 0; i < ARRAYSIZE(invalid_cases); i++) { + EXPECT_FALSE(GURL(invalid_cases[i]).is_valid()) + << "Case: " << invalid_cases[i]; + } +} + +TEST(GURLTest, ExtraSlashesBeforeAuthority) { + // According to RFC3986, the hier-part for URI with an authority must use only + // two slashes, GURL intentionally just ignores slashes more than 2 and parses + // the following part as an authority. + GURL url("http:///host"); + EXPECT_EQ("host", url.host()); + EXPECT_EQ("/", url.path()); +} + +// Given an invalid URL, we should still get most of the components. +TEST(GURLTest, ComponentGettersWorkEvenForInvalidURL) { + GURL url("http:google.com:foo"); + EXPECT_FALSE(url.is_valid()); + EXPECT_EQ("http://google.com:foo/", url.possibly_invalid_spec()); + + EXPECT_EQ("http", url.scheme()); + EXPECT_EQ("", url.username()); + EXPECT_EQ("", url.password()); + EXPECT_EQ("google.com", url.host()); + EXPECT_EQ("foo", url.port()); + EXPECT_EQ(PORT_INVALID, url.IntPort()); + EXPECT_EQ("/", url.path()); + EXPECT_EQ("", url.query()); + EXPECT_EQ("", url.ref()); +} + +TEST(GURLTest, Resolve) { + // The tricky cases for relative URL resolving are tested in the + // canonicalizer unit test. Here, we just test that the GURL integration + // works properly. + struct ResolveCase { + const char* base; + const char* relative; + bool expected_valid; + const char* expected; + } resolve_cases[] = { + {"http://www.google.com/", "foo.html", true, "http://www.google.com/foo.html"}, + {"http://www.google.com/", "http://images.google.com/foo.html", true, "http://images.google.com/foo.html"}, + {"http://www.google.com/blah/bloo?c#d", "../../../hello/./world.html?a#b", true, "http://www.google.com/hello/world.html?a#b"}, + {"http://www.google.com/foo#bar", "#com", true, "http://www.google.com/foo#com"}, + {"http://www.google.com/", "Https:images.google.com", true, "https://images.google.com/"}, + // A non-standard base can be replaced with a standard absolute URL. + {"data:blahblah", "http://google.com/", true, "http://google.com/"}, + {"data:blahblah", "http:google.com", true, "http://google.com/"}, + // Filesystem URLs have different paths to test. + {"filesystem:http://www.google.com/type/", "foo.html", true, "filesystem:http://www.google.com/type/foo.html"}, + {"filesystem:http://www.google.com/type/", "../foo.html", true, "filesystem:http://www.google.com/type/foo.html"}, + }; + + for (size_t i = 0; i < ARRAYSIZE(resolve_cases); i++) { + // 8-bit code path. + GURL input(resolve_cases[i].base); + GURL output = input.Resolve(resolve_cases[i].relative); + EXPECT_EQ(resolve_cases[i].expected_valid, output.is_valid()) << i; + EXPECT_EQ(resolve_cases[i].expected, output.spec()) << i; + EXPECT_EQ(output.SchemeIsFileSystem(), output.inner_url() != NULL); + + // Wide code path. + GURL inputw(ConvertUTF8ToUTF16(resolve_cases[i].base)); + GURL outputw = + input.Resolve(ConvertUTF8ToUTF16(resolve_cases[i].relative)); + EXPECT_EQ(resolve_cases[i].expected_valid, outputw.is_valid()) << i; + EXPECT_EQ(resolve_cases[i].expected, outputw.spec()) << i; + EXPECT_EQ(outputw.SchemeIsFileSystem(), outputw.inner_url() != NULL); + } +} + +TEST(GURLTest, GetOrigin) { + struct TestCase { + const char* input; + const char* expected; + } cases[] = { + {"http://www.google.com", "http://www.google.com/"}, + {"javascript:window.alert(\"hello,world\");", ""}, + {"http://user:pass@www.google.com:21/blah#baz", "http://www.google.com:21/"}, + {"http://user@www.google.com", "http://www.google.com/"}, + {"http://:pass@www.google.com", "http://www.google.com/"}, + {"http://:@www.google.com", "http://www.google.com/"}, + {"filesystem:http://www.google.com/temp/foo?q#b", "http://www.google.com/"}, + {"filesystem:http://user:pass@google.com:21/blah#baz", "http://google.com:21/"}, + }; + for (size_t i = 0; i < ARRAYSIZE(cases); i++) { + GURL url(cases[i].input); + GURL origin = url.GetOrigin(); + EXPECT_EQ(cases[i].expected, origin.spec()); + } +} + +TEST(GURLTest, GetAsReferrer) { + struct TestCase { + const char* input; + const char* expected; + } cases[] = { + {"http://www.google.com", "http://www.google.com/"}, + {"http://user:pass@www.google.com:21/blah#baz", "http://www.google.com:21/blah"}, + {"http://user@www.google.com", "http://www.google.com/"}, + {"http://:pass@www.google.com", "http://www.google.com/"}, + {"http://:@www.google.com", "http://www.google.com/"}, + {"http://www.google.com/temp/foo?q#b", "http://www.google.com/temp/foo?q"}, + }; + for (size_t i = 0; i < ARRAYSIZE(cases); i++) { + GURL url(cases[i].input); + GURL origin = url.GetAsReferrer(); + EXPECT_EQ(cases[i].expected, origin.spec()); + } +} + +TEST(GURLTest, GetWithEmptyPath) { + struct TestCase { + const char* input; + const char* expected; + } cases[] = { + {"http://www.google.com", "http://www.google.com/"}, + {"javascript:window.alert(\"hello, world\");", ""}, + {"http://www.google.com/foo/bar.html?baz=22", "http://www.google.com/"}, + {"filesystem:http://www.google.com/temporary/bar.html?baz=22", "filesystem:http://www.google.com/temporary/"}, + {"filesystem:file:///temporary/bar.html?baz=22", "filesystem:file:///temporary/"}, + }; + + for (size_t i = 0; i < ARRAYSIZE(cases); i++) { + GURL url(cases[i].input); + GURL empty_path = url.GetWithEmptyPath(); + EXPECT_EQ(cases[i].expected, empty_path.spec()); + } +} + +TEST(GURLTest, Replacements) { + // The url canonicalizer replacement test will handle most of these case. + // The most important thing to do here is to check that the proper + // canonicalizer gets called based on the scheme of the input. + struct ReplaceCase { + const char* base; + const char* scheme; + const char* username; + const char* password; + const char* host; + const char* port; + const char* path; + const char* query; + const char* ref; + const char* expected; + } replace_cases[] = { + {"http://www.google.com/foo/bar.html?foo#bar", NULL, NULL, NULL, NULL, NULL, "/", "", "", "http://www.google.com/"}, + {"http://www.google.com/foo/bar.html?foo#bar", "javascript", "", "", "", "", "window.open('foo');", "", "", "javascript:window.open('foo');"}, + {"file:///C:/foo/bar.txt", "http", NULL, NULL, "www.google.com", "99", "/foo","search", "ref", "http://www.google.com:99/foo?search#ref"}, +#ifdef WIN32 + {"http://www.google.com/foo/bar.html?foo#bar", "file", "", "", "", "", "c:\\", "", "", "file:///C:/"}, +#endif + {"filesystem:http://www.google.com/foo/bar.html?foo#bar", NULL, NULL, NULL, NULL, NULL, "/", "", "", "filesystem:http://www.google.com/foo/"}, + }; + + for (size_t i = 0; i < ARRAYSIZE(replace_cases); i++) { + const ReplaceCase& cur = replace_cases[i]; + GURL url(cur.base); + GURL::Replacements repl; + SetupReplacement(&GURL::Replacements::SetScheme, &repl, cur.scheme); + SetupReplacement(&GURL::Replacements::SetUsername, &repl, cur.username); + SetupReplacement(&GURL::Replacements::SetPassword, &repl, cur.password); + SetupReplacement(&GURL::Replacements::SetHost, &repl, cur.host); + SetupReplacement(&GURL::Replacements::SetPort, &repl, cur.port); + SetupReplacement(&GURL::Replacements::SetPath, &repl, cur.path); + SetupReplacement(&GURL::Replacements::SetQuery, &repl, cur.query); + SetupReplacement(&GURL::Replacements::SetRef, &repl, cur.ref); + GURL output = url.ReplaceComponents(repl); + + EXPECT_EQ(replace_cases[i].expected, output.spec()); + EXPECT_EQ(output.SchemeIsFileSystem(), output.inner_url() != NULL); + } +} + +TEST(GURLTest, ClearFragmentOnDataUrl) { + // http://crbug.com/291747 - a data URL may legitimately have trailing + // whitespace in the spec after the ref is cleared. Test this does not trigger + // the Parsed importing validation DCHECK in GURL. + GURL url(" data: one ? two # three "); + + // By default the trailing whitespace will have been stripped. + EXPECT_EQ("data: one ? two # three", url.spec()); + GURL::Replacements repl; + repl.ClearRef(); + GURL url_no_ref = url.ReplaceComponents(repl); + + EXPECT_EQ("data: one ? two ", url_no_ref.spec()); + + // Importing a parsed url via this constructor overload will retain trailing + // whitespace. + GURL import_url(url_no_ref.spec(), + url_no_ref.parsed_for_possibly_invalid_spec(), + url_no_ref.is_valid()); + EXPECT_EQ(url_no_ref, import_url); + EXPECT_EQ(import_url.query(), " two "); +} + +TEST(GURLTest, PathForRequest) { + struct TestCase { + const char* input; + const char* expected; + const char* inner_expected; + } cases[] = { + {"http://www.google.com", "/", NULL}, + {"http://www.google.com/", "/", NULL}, + {"http://www.google.com/foo/bar.html?baz=22", "/foo/bar.html?baz=22", NULL}, + {"http://www.google.com/foo/bar.html#ref", "/foo/bar.html", NULL}, + {"http://www.google.com/foo/bar.html?query#ref", "/foo/bar.html?query", NULL}, + {"filesystem:http://www.google.com/temporary/foo/bar.html?query#ref", "/foo/bar.html?query", "/temporary"}, + {"filesystem:http://www.google.com/temporary/foo/bar.html?query", "/foo/bar.html?query", "/temporary"}, + }; + + for (size_t i = 0; i < ARRAYSIZE(cases); i++) { + GURL url(cases[i].input); + std::string path_request = url.PathForRequest(); + EXPECT_EQ(cases[i].expected, path_request); + EXPECT_EQ(cases[i].inner_expected == NULL, url.inner_url() == NULL); + if (url.inner_url() && cases[i].inner_expected) + EXPECT_EQ(cases[i].inner_expected, url.inner_url()->PathForRequest()); + } +} + +TEST(GURLTest, EffectiveIntPort) { + struct PortTest { + const char* spec; + int expected_int_port; + } port_tests[] = { + // http + {"http://www.google.com/", 80}, + {"http://www.google.com:80/", 80}, + {"http://www.google.com:443/", 443}, + + // https + {"https://www.google.com/", 443}, + {"https://www.google.com:443/", 443}, + {"https://www.google.com:80/", 80}, + + // ftp + {"ftp://www.google.com/", 21}, + {"ftp://www.google.com:21/", 21}, + {"ftp://www.google.com:80/", 80}, + + // gopher + {"gopher://www.google.com/", 70}, + {"gopher://www.google.com:70/", 70}, + {"gopher://www.google.com:80/", 80}, + + // file - no port + {"file://www.google.com/", PORT_UNSPECIFIED}, + {"file://www.google.com:443/", PORT_UNSPECIFIED}, + + // data - no port + {"data:www.google.com:90", PORT_UNSPECIFIED}, + {"data:www.google.com", PORT_UNSPECIFIED}, + + // filesystem - no port + {"filesystem:http://www.google.com:90/t/foo", PORT_UNSPECIFIED}, + {"filesystem:file:///t/foo", PORT_UNSPECIFIED}, + }; + + for (size_t i = 0; i < ARRAYSIZE(port_tests); i++) { + GURL url(port_tests[i].spec); + EXPECT_EQ(port_tests[i].expected_int_port, url.EffectiveIntPort()); + } +} + +TEST(GURLTest, IPAddress) { + struct IPTest { + const char* spec; + bool expected_ip; + } ip_tests[] = { + {"http://www.google.com/", false}, + {"http://192.168.9.1/", true}, + {"http://192.168.9.1.2/", false}, + {"http://192.168.m.1/", false}, + {"http://2001:db8::1/", false}, + {"http://[2001:db8::1]/", true}, + {"", false}, + {"some random input!", false}, + }; + + for (size_t i = 0; i < ARRAYSIZE(ip_tests); i++) { + GURL url(ip_tests[i].spec); + EXPECT_EQ(ip_tests[i].expected_ip, url.HostIsIPAddress()); + } +} + +TEST(GURLTest, HostNoBrackets) { + struct TestCase { + const char* input; + const char* expected_host; + const char* expected_plainhost; + } cases[] = { + {"http://www.google.com", "www.google.com", "www.google.com"}, + {"http://[2001:db8::1]/", "[2001:db8::1]", "2001:db8::1"}, + {"http://[::]/", "[::]", "::"}, + + // Don't require a valid URL, but don't crash either. + {"http://[]/", "[]", ""}, + {"http://[x]/", "[x]", "x"}, + {"http://[x/", "[x", "[x"}, + {"http://x]/", "x]", "x]"}, + {"http://[/", "[", "["}, + {"http://]/", "]", "]"}, + {"", "", ""}, + }; + for (size_t i = 0; i < ARRAYSIZE(cases); i++) { + GURL url(cases[i].input); + EXPECT_EQ(cases[i].expected_host, url.host()); + EXPECT_EQ(cases[i].expected_plainhost, url.HostNoBrackets()); + } +} + +TEST(GURLTest, DomainIs) { + const char google_domain[] = "google.com"; + + GURL url_1("http://www.google.com:99/foo"); + EXPECT_TRUE(url_1.DomainIs(google_domain)); + + GURL url_2("http://google.com:99/foo"); + EXPECT_TRUE(url_2.DomainIs(google_domain)); + + GURL url_3("http://google.com./foo"); + EXPECT_TRUE(url_3.DomainIs(google_domain)); + + GURL url_4("http://google.com/foo"); + EXPECT_FALSE(url_4.DomainIs("google.com.")); + + GURL url_5("http://google.com./foo"); + EXPECT_TRUE(url_5.DomainIs("google.com.")); + + GURL url_6("http://www.google.com./foo"); + EXPECT_TRUE(url_6.DomainIs(".com.")); + + GURL url_7("http://www.balabala.com/foo"); + EXPECT_FALSE(url_7.DomainIs(google_domain)); + + GURL url_8("http://www.google.com.cn/foo"); + EXPECT_FALSE(url_8.DomainIs(google_domain)); + + GURL url_9("http://www.iamnotgoogle.com/foo"); + EXPECT_FALSE(url_9.DomainIs(google_domain)); + + GURL url_10("http://www.iamnotgoogle.com../foo"); + EXPECT_FALSE(url_10.DomainIs(".com")); + + GURL url_11("filesystem:http://www.google.com:99/foo/"); + EXPECT_TRUE(url_11.DomainIs(google_domain)); + + GURL url_12("filesystem:http://www.iamnotgoogle.com/foo/"); + EXPECT_FALSE(url_12.DomainIs(google_domain)); +} + +// Newlines should be stripped from inputs. +TEST(GURLTest, Newlines) { + // Constructor. + GURL url_1(" \t ht\ntp://\twww.goo\rgle.com/as\ndf \n "); + EXPECT_EQ("http://www.google.com/asdf", url_1.spec()); + + // Relative path resolver. + GURL url_2 = url_1.Resolve(" \n /fo\to\r "); + EXPECT_EQ("http://www.google.com/foo", url_2.spec()); + + // Note that newlines are NOT stripped from ReplaceComponents. +} + +TEST(GURLTest, IsStandard) { + GURL a("http:foo/bar"); + EXPECT_TRUE(a.IsStandard()); + + GURL b("foo:bar/baz"); + EXPECT_FALSE(b.IsStandard()); + + GURL c("foo://bar/baz"); + EXPECT_FALSE(c.IsStandard()); +} + +TEST(GURLTest, SchemeIsHTTPOrHTTPS) { + EXPECT_TRUE(GURL("http://bar/").SchemeIsHTTPOrHTTPS()); + EXPECT_TRUE(GURL("HTTPS://BAR").SchemeIsHTTPOrHTTPS()); + EXPECT_FALSE(GURL("ftp://bar/").SchemeIsHTTPOrHTTPS()); +} + +TEST(GURLTest, SchemeIsWSOrWSS) { + EXPECT_TRUE(GURL("WS://BAR/").SchemeIsWSOrWSS()); + EXPECT_TRUE(GURL("wss://bar/").SchemeIsWSOrWSS()); + EXPECT_FALSE(GURL("http://bar/").SchemeIsWSOrWSS()); +} + +TEST(GURLTest, SchemeIsBlob) { + EXPECT_TRUE(GURL("BLOB://BAR/").SchemeIsBlob()); + EXPECT_TRUE(GURL("blob://bar/").SchemeIsBlob()); + EXPECT_FALSE(GURL("http://bar/").SchemeIsBlob()); +} + +} // namespace url
diff --git a/origin.cc b/origin.cc new file mode 100644 index 0000000..eb2cf14 --- /dev/null +++ b/origin.cc
@@ -0,0 +1,19 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "url/origin.h" + +#include "base/strings/string_util.h" + +namespace url { + +Origin::Origin() : string_("null") {} + +Origin::Origin(const std::string& origin) : string_(origin) { + DCHECK(origin == "null" || MatchPattern(origin, "?*://?*")); + DCHECK_GT(origin.size(), 0u); + DCHECK_NE(origin[origin.size() - 1], '/'); +} + +} // namespace url
diff --git a/origin.h b/origin.h new file mode 100644 index 0000000..777e4e1 --- /dev/null +++ b/origin.h
@@ -0,0 +1,33 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_ORIGIN_H_ +#define URL_ORIGIN_H_ + +#include <string> + +#include "url/url_export.h" + +namespace url { + +// Origin represents a Web Origin serialized to a string. +// See RFC6454 for details. +class URL_EXPORT Origin { + public: + Origin(); + explicit Origin(const std::string& origin); + + const std::string& string() const { return string_; } + + bool IsSameAs(const Origin& that) const { + return string_ == that.string_; + } + + private: + std::string string_; +}; + +} // namespace url + +#endif // URL_ORIGIN_H_
diff --git a/origin_unittest.cc b/origin_unittest.cc new file mode 100644 index 0000000..d08342e --- /dev/null +++ b/origin_unittest.cc
@@ -0,0 +1,36 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "testing/gtest/include/gtest/gtest.h" +#include "url/origin.h" + +namespace url { + +namespace { + +// Each test examines the Origin is constructed correctly without +// violating DCHECKs. +TEST(OriginTest, constructEmpty) { + Origin origin; + EXPECT_EQ("null", origin.string()); +} + +TEST(OriginTest, constructNull) { + Origin origin("null"); + EXPECT_EQ("null", origin.string()); +} + +TEST(OriginTest, constructValidOrigin) { + Origin origin("http://example.com:8080"); + EXPECT_EQ("http://example.com:8080", origin.string()); +} + +TEST(OriginTest, constructValidOriginWithoutPort) { + Origin origin("wss://example2.com"); + EXPECT_EQ("wss://example2.com", origin.string()); +} + +} // namespace + +} // namespace url
diff --git a/third_party/mozilla/LICENSE.txt b/third_party/mozilla/LICENSE.txt new file mode 100644 index 0000000..ac40837 --- /dev/null +++ b/third_party/mozilla/LICENSE.txt
@@ -0,0 +1,65 @@ +Copyright 2007, Google Inc. +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +------------------------------------------------------------------------------- + +The file url_parse.cc is based on nsURLParsers.cc from Mozilla. This file is +licensed separately as follows: + +The contents of this file are subject to the Mozilla Public License Version +1.1 (the "License"); you may not use this file except in compliance with +the License. You may obtain a copy of the License at +http://www.mozilla.org/MPL/ + +Software distributed under the License is distributed on an "AS IS" basis, +WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License +for the specific language governing rights and limitations under the +License. + +The Original Code is mozilla.org code. + +The Initial Developer of the Original Code is +Netscape Communications Corporation. +Portions created by the Initial Developer are Copyright (C) 1998 +the Initial Developer. All Rights Reserved. + +Contributor(s): + Darin Fisher (original author) + +Alternatively, the contents of this file may be used under the terms of +either the GNU General Public License Version 2 or later (the "GPL"), or +the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), +in which case the provisions of the GPL or the LGPL are applicable instead +of those above. If you wish to allow use of your version of this file only +under the terms of either the GPL or the LGPL, and not to allow others to +use your version of this file under the terms of the MPL, indicate your +decision by deleting the provisions above and replace them with the notice +and other provisions required by the GPL or the LGPL. If you do not delete +the provisions above, a recipient may use your version of this file under +the terms of any one of the MPL, the GPL or the LGPL.
diff --git a/third_party/mozilla/README.chromium b/third_party/mozilla/README.chromium new file mode 100644 index 0000000..ef396d3 --- /dev/null +++ b/third_party/mozilla/README.chromium
@@ -0,0 +1,8 @@ +Name: url_parse +URL: http://mxr.mozilla.org/comm-central/source/mozilla/netwerk/base/src/nsURLParsers.cpp +License: BSD and MPL 1.1/GPL 2.0/LGPL 2.1 +License File: LICENSE.txt + +Description: + +The file url_parse.cc is based on nsURLParsers.cc from Mozilla.
diff --git a/third_party/mozilla/url_parse.cc b/third_party/mozilla/url_parse.cc new file mode 100644 index 0000000..6256796 --- /dev/null +++ b/third_party/mozilla/url_parse.cc
@@ -0,0 +1,944 @@ +/* Based on nsURLParsers.cc from Mozilla + * ------------------------------------- + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is mozilla.org code. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Darin Fisher (original author) + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include "url/third_party/mozilla/url_parse.h" + +#include <stdlib.h> + +#include "base/logging.h" +#include "url/url_parse_internal.h" +#include "url/url_util.h" +#include "url/url_util_internal.h" + +namespace url { + +namespace { + +// Returns true if the given character is a valid digit to use in a port. +inline bool IsPortDigit(base::char16 ch) { + return ch >= '0' && ch <= '9'; +} + +// Returns the offset of the next authority terminator in the input starting +// from start_offset. If no terminator is found, the return value will be equal +// to spec_len. +template<typename CHAR> +int FindNextAuthorityTerminator(const CHAR* spec, + int start_offset, + int spec_len) { + for (int i = start_offset; i < spec_len; i++) { + if (IsAuthorityTerminator(spec[i])) + return i; + } + return spec_len; // Not found. +} + +template<typename CHAR> +void ParseUserInfo(const CHAR* spec, + const Component& user, + Component* username, + Component* password) { + // Find the first colon in the user section, which separates the username and + // password. + int colon_offset = 0; + while (colon_offset < user.len && spec[user.begin + colon_offset] != ':') + colon_offset++; + + if (colon_offset < user.len) { + // Found separator: <username>:<password> + *username = Component(user.begin, colon_offset); + *password = MakeRange(user.begin + colon_offset + 1, + user.begin + user.len); + } else { + // No separator, treat everything as the username + *username = user; + *password = Component(); + } +} + +template<typename CHAR> +void ParseServerInfo(const CHAR* spec, + const Component& serverinfo, + Component* hostname, + Component* port_num) { + if (serverinfo.len == 0) { + // No server info, host name is empty. + hostname->reset(); + port_num->reset(); + return; + } + + // If the host starts with a left-bracket, assume the entire host is an + // IPv6 literal. Otherwise, assume none of the host is an IPv6 literal. + // This assumption will be overridden if we find a right-bracket. + // + // Our IPv6 address canonicalization code requires both brackets to exist, + // but the ability to locate an incomplete address can still be useful. + int ipv6_terminator = spec[serverinfo.begin] == '[' ? serverinfo.end() : -1; + int colon = -1; + + // Find the last right-bracket, and the last colon. + for (int i = serverinfo.begin; i < serverinfo.end(); i++) { + switch (spec[i]) { + case ']': + ipv6_terminator = i; + break; + case ':': + colon = i; + break; + } + } + + if (colon > ipv6_terminator) { + // Found a port number: <hostname>:<port> + *hostname = MakeRange(serverinfo.begin, colon); + if (hostname->len == 0) + hostname->reset(); + *port_num = MakeRange(colon + 1, serverinfo.end()); + } else { + // No port: <hostname> + *hostname = serverinfo; + port_num->reset(); + } +} + +// Given an already-identified auth section, breaks it into its consituent +// parts. The port number will be parsed and the resulting integer will be +// filled into the given *port variable, or -1 if there is no port number or it +// is invalid. +template<typename CHAR> +void DoParseAuthority(const CHAR* spec, + const Component& auth, + Component* username, + Component* password, + Component* hostname, + Component* port_num) { + DCHECK(auth.is_valid()) << "We should always get an authority"; + if (auth.len == 0) { + username->reset(); + password->reset(); + hostname->reset(); + port_num->reset(); + return; + } + + // Search backwards for @, which is the separator between the user info and + // the server info. + int i = auth.begin + auth.len - 1; + while (i > auth.begin && spec[i] != '@') + i--; + + if (spec[i] == '@') { + // Found user info: <user-info>@<server-info> + ParseUserInfo(spec, Component(auth.begin, i - auth.begin), + username, password); + ParseServerInfo(spec, MakeRange(i + 1, auth.begin + auth.len), + hostname, port_num); + } else { + // No user info, everything is server info. + username->reset(); + password->reset(); + ParseServerInfo(spec, auth, hostname, port_num); + } +} + +template<typename CHAR> +void ParsePath(const CHAR* spec, + const Component& path, + Component* filepath, + Component* query, + Component* ref) { + // path = [/]<segment1>/<segment2>/<...>/<segmentN>;<param>?<query>#<ref> + + // Special case when there is no path. + if (path.len == -1) { + filepath->reset(); + query->reset(); + ref->reset(); + return; + } + DCHECK(path.len > 0) << "We should never have 0 length paths"; + + // Search for first occurrence of either ? or #. + int path_end = path.begin + path.len; + + int query_separator = -1; // Index of the '?' + int ref_separator = -1; // Index of the '#' + for (int i = path.begin; i < path_end; i++) { + switch (spec[i]) { + case '?': + // Only match the query string if it precedes the reference fragment + // and when we haven't found one already. + if (ref_separator < 0 && query_separator < 0) + query_separator = i; + break; + case '#': + // Record the first # sign only. + if (ref_separator < 0) + ref_separator = i; + break; + } + } + + // Markers pointing to the character after each of these corresponding + // components. The code below words from the end back to the beginning, + // and will update these indices as it finds components that exist. + int file_end, query_end; + + // Ref fragment: from the # to the end of the path. + if (ref_separator >= 0) { + file_end = query_end = ref_separator; + *ref = MakeRange(ref_separator + 1, path_end); + } else { + file_end = query_end = path_end; + ref->reset(); + } + + // Query fragment: everything from the ? to the next boundary (either the end + // of the path or the ref fragment). + if (query_separator >= 0) { + file_end = query_separator; + *query = MakeRange(query_separator + 1, query_end); + } else { + query->reset(); + } + + // File path: treat an empty file path as no file path. + if (file_end != path.begin) + *filepath = MakeRange(path.begin, file_end); + else + filepath->reset(); +} + +template<typename CHAR> +bool DoExtractScheme(const CHAR* url, + int url_len, + Component* scheme) { + // Skip leading whitespace and control characters. + int begin = 0; + while (begin < url_len && ShouldTrimFromURL(url[begin])) + begin++; + if (begin == url_len) + return false; // Input is empty or all whitespace. + + // Find the first colon character. + for (int i = begin; i < url_len; i++) { + if (url[i] == ':') { + *scheme = MakeRange(begin, i); + return true; + } + } + return false; // No colon found: no scheme +} + +// Fills in all members of the Parsed structure except for the scheme. +// +// |spec| is the full spec being parsed, of length |spec_len|. +// |after_scheme| is the character immediately following the scheme (after the +// colon) where we'll begin parsing. +// +// Compatability data points. I list "host", "path" extracted: +// Input IE6 Firefox Us +// ----- -------------- -------------- -------------- +// http://foo.com/ "foo.com", "/" "foo.com", "/" "foo.com", "/" +// http:foo.com/ "foo.com", "/" "foo.com", "/" "foo.com", "/" +// http:/foo.com/ fail(*) "foo.com", "/" "foo.com", "/" +// http:\foo.com/ fail(*) "\foo.com", "/"(fail) "foo.com", "/" +// http:////foo.com/ "foo.com", "/" "foo.com", "/" "foo.com", "/" +// +// (*) Interestingly, although IE fails to load these URLs, its history +// canonicalizer handles them, meaning if you've been to the corresponding +// "http://foo.com/" link, it will be colored. +template <typename CHAR> +void DoParseAfterScheme(const CHAR* spec, + int spec_len, + int after_scheme, + Parsed* parsed) { + int num_slashes = CountConsecutiveSlashes(spec, after_scheme, spec_len); + int after_slashes = after_scheme + num_slashes; + + // First split into two main parts, the authority (username, password, host, + // and port) and the full path (path, query, and reference). + Component authority; + Component full_path; + + // Found "//<some data>", looks like an authority section. Treat everything + // from there to the next slash (or end of spec) to be the authority. Note + // that we ignore the number of slashes and treat it as the authority. + int end_auth = FindNextAuthorityTerminator(spec, after_slashes, spec_len); + authority = Component(after_slashes, end_auth - after_slashes); + + if (end_auth == spec_len) // No beginning of path found. + full_path = Component(); + else // Everything starting from the slash to the end is the path. + full_path = Component(end_auth, spec_len - end_auth); + + // Now parse those two sub-parts. + DoParseAuthority(spec, authority, &parsed->username, &parsed->password, + &parsed->host, &parsed->port); + ParsePath(spec, full_path, &parsed->path, &parsed->query, &parsed->ref); +} + +// The main parsing function for standard URLs. Standard URLs have a scheme, +// host, path, etc. +template<typename CHAR> +void DoParseStandardURL(const CHAR* spec, int spec_len, Parsed* parsed) { + DCHECK(spec_len >= 0); + + // Strip leading & trailing spaces and control characters. + int begin = 0; + TrimURL(spec, &begin, &spec_len); + + int after_scheme; + if (DoExtractScheme(spec, spec_len, &parsed->scheme)) { + after_scheme = parsed->scheme.end() + 1; // Skip past the colon. + } else { + // Say there's no scheme when there is no colon. We could also say that + // everything is the scheme. Both would produce an invalid URL, but this way + // seems less wrong in more cases. + parsed->scheme.reset(); + after_scheme = begin; + } + DoParseAfterScheme(spec, spec_len, after_scheme, parsed); +} + +template<typename CHAR> +void DoParseFileSystemURL(const CHAR* spec, int spec_len, Parsed* parsed) { + DCHECK(spec_len >= 0); + + // Get the unused parts of the URL out of the way. + parsed->username.reset(); + parsed->password.reset(); + parsed->host.reset(); + parsed->port.reset(); + parsed->path.reset(); // May use this; reset for convenience. + parsed->ref.reset(); // May use this; reset for convenience. + parsed->query.reset(); // May use this; reset for convenience. + parsed->clear_inner_parsed(); // May use this; reset for convenience. + + // Strip leading & trailing spaces and control characters. + int begin = 0; + TrimURL(spec, &begin, &spec_len); + + // Handle empty specs or ones that contain only whitespace or control chars. + if (begin == spec_len) { + parsed->scheme.reset(); + return; + } + + int inner_start = -1; + + // Extract the scheme. We also handle the case where there is no scheme. + if (DoExtractScheme(&spec[begin], spec_len - begin, &parsed->scheme)) { + // Offset the results since we gave ExtractScheme a substring. + parsed->scheme.begin += begin; + + if (parsed->scheme.end() == spec_len - 1) + return; + + inner_start = parsed->scheme.end() + 1; + } else { + // No scheme found; that's not valid for filesystem URLs. + parsed->scheme.reset(); + return; + } + + Component inner_scheme; + const CHAR* inner_spec = &spec[inner_start]; + int inner_spec_len = spec_len - inner_start; + + if (DoExtractScheme(inner_spec, inner_spec_len, &inner_scheme)) { + // Offset the results since we gave ExtractScheme a substring. + inner_scheme.begin += inner_start; + + if (inner_scheme.end() == spec_len - 1) + return; + } else { + // No scheme found; that's not valid for filesystem URLs. + // The best we can do is return "filesystem://". + return; + } + + Parsed inner_parsed; + + if (CompareSchemeComponent(spec, inner_scheme, kFileScheme)) { + // File URLs are special. + ParseFileURL(inner_spec, inner_spec_len, &inner_parsed); + } else if (CompareSchemeComponent(spec, inner_scheme, kFileSystemScheme)) { + // Filesystem URLs don't nest. + return; + } else if (IsStandard(spec, inner_scheme)) { + // All "normal" URLs. + DoParseStandardURL(inner_spec, inner_spec_len, &inner_parsed); + } else { + return; + } + + // All members of inner_parsed need to be offset by inner_start. + // If we had any scheme that supported nesting more than one level deep, + // we'd have to recurse into the inner_parsed's inner_parsed when + // adjusting by inner_start. + inner_parsed.scheme.begin += inner_start; + inner_parsed.username.begin += inner_start; + inner_parsed.password.begin += inner_start; + inner_parsed.host.begin += inner_start; + inner_parsed.port.begin += inner_start; + inner_parsed.query.begin += inner_start; + inner_parsed.ref.begin += inner_start; + inner_parsed.path.begin += inner_start; + + // Query and ref move from inner_parsed to parsed. + parsed->query = inner_parsed.query; + inner_parsed.query.reset(); + parsed->ref = inner_parsed.ref; + inner_parsed.ref.reset(); + + parsed->set_inner_parsed(inner_parsed); + if (!inner_parsed.scheme.is_valid() || !inner_parsed.path.is_valid() || + inner_parsed.inner_parsed()) { + return; + } + + // The path in inner_parsed should start with a slash, then have a filesystem + // type followed by a slash. From the first slash up to but excluding the + // second should be what it keeps; the rest goes to parsed. If the path ends + // before the second slash, it's still pretty clear what the user meant, so + // we'll let that through. + if (!IsURLSlash(spec[inner_parsed.path.begin])) { + return; + } + int inner_path_end = inner_parsed.path.begin + 1; // skip the leading slash + while (inner_path_end < spec_len && + !IsURLSlash(spec[inner_path_end])) + ++inner_path_end; + parsed->path.begin = inner_path_end; + int new_inner_path_length = inner_path_end - inner_parsed.path.begin; + parsed->path.len = inner_parsed.path.len - new_inner_path_length; + parsed->inner_parsed()->path.len = new_inner_path_length; +} + +// Initializes a path URL which is merely a scheme followed by a path. Examples +// include "about:foo" and "javascript:alert('bar');" +template<typename CHAR> +void DoParsePathURL(const CHAR* spec, int spec_len, + bool trim_path_end, + Parsed* parsed) { + // Get the non-path and non-scheme parts of the URL out of the way, we never + // use them. + parsed->username.reset(); + parsed->password.reset(); + parsed->host.reset(); + parsed->port.reset(); + parsed->path.reset(); + parsed->query.reset(); + parsed->ref.reset(); + + // Strip leading & trailing spaces and control characters. + int scheme_begin = 0; + TrimURL(spec, &scheme_begin, &spec_len, trim_path_end); + + // Handle empty specs or ones that contain only whitespace or control chars. + if (scheme_begin == spec_len) { + parsed->scheme.reset(); + parsed->path.reset(); + return; + } + + int path_begin; + // Extract the scheme, with the path being everything following. We also + // handle the case where there is no scheme. + if (ExtractScheme(&spec[scheme_begin], spec_len - scheme_begin, + &parsed->scheme)) { + // Offset the results since we gave ExtractScheme a substring. + parsed->scheme.begin += scheme_begin; + path_begin = parsed->scheme.end() + 1; + } else { + // No scheme case. + parsed->scheme.reset(); + path_begin = scheme_begin; + } + + if (path_begin == spec_len) + return; + DCHECK_LT(path_begin, spec_len); + + ParsePath(spec, + MakeRange(path_begin, spec_len), + &parsed->path, + &parsed->query, + &parsed->ref); +} + +template<typename CHAR> +void DoParseMailtoURL(const CHAR* spec, int spec_len, Parsed* parsed) { + DCHECK(spec_len >= 0); + + // Get the non-path and non-scheme parts of the URL out of the way, we never + // use them. + parsed->username.reset(); + parsed->password.reset(); + parsed->host.reset(); + parsed->port.reset(); + parsed->ref.reset(); + parsed->query.reset(); // May use this; reset for convenience. + + // Strip leading & trailing spaces and control characters. + int begin = 0; + TrimURL(spec, &begin, &spec_len); + + // Handle empty specs or ones that contain only whitespace or control chars. + if (begin == spec_len) { + parsed->scheme.reset(); + parsed->path.reset(); + return; + } + + int path_begin = -1; + int path_end = -1; + + // Extract the scheme, with the path being everything following. We also + // handle the case where there is no scheme. + if (ExtractScheme(&spec[begin], spec_len - begin, &parsed->scheme)) { + // Offset the results since we gave ExtractScheme a substring. + parsed->scheme.begin += begin; + + if (parsed->scheme.end() != spec_len - 1) { + path_begin = parsed->scheme.end() + 1; + path_end = spec_len; + } + } else { + // No scheme found, just path. + parsed->scheme.reset(); + path_begin = begin; + path_end = spec_len; + } + + // Split [path_begin, path_end) into a path + query. + for (int i = path_begin; i < path_end; ++i) { + if (spec[i] == '?') { + parsed->query = MakeRange(i + 1, path_end); + path_end = i; + break; + } + } + + // For compatability with the standard URL parser, treat no path as + // -1, rather than having a length of 0 + if (path_begin == path_end) { + parsed->path.reset(); + } else { + parsed->path = MakeRange(path_begin, path_end); + } +} + +// Converts a port number in a string to an integer. We'd like to just call +// sscanf but our input is not NULL-terminated, which sscanf requires. Instead, +// we copy the digits to a small stack buffer (since we know the maximum number +// of digits in a valid port number) that we can NULL terminate. +template<typename CHAR> +int DoParsePort(const CHAR* spec, const Component& component) { + // Easy success case when there is no port. + const int kMaxDigits = 5; + if (!component.is_nonempty()) + return PORT_UNSPECIFIED; + + // Skip over any leading 0s. + Component digits_comp(component.end(), 0); + for (int i = 0; i < component.len; i++) { + if (spec[component.begin + i] != '0') { + digits_comp = MakeRange(component.begin + i, component.end()); + break; + } + } + if (digits_comp.len == 0) + return 0; // All digits were 0. + + // Verify we don't have too many digits (we'll be copying to our buffer so + // we need to double-check). + if (digits_comp.len > kMaxDigits) + return PORT_INVALID; + + // Copy valid digits to the buffer. + char digits[kMaxDigits + 1]; // +1 for null terminator + for (int i = 0; i < digits_comp.len; i++) { + CHAR ch = spec[digits_comp.begin + i]; + if (!IsPortDigit(ch)) { + // Invalid port digit, fail. + return PORT_INVALID; + } + digits[i] = static_cast<char>(ch); + } + + // Null-terminate the string and convert to integer. Since we guarantee + // only digits, atoi's lack of error handling is OK. + digits[digits_comp.len] = 0; + int port = atoi(digits); + if (port > 65535) + return PORT_INVALID; // Out of range. + return port; +} + +template<typename CHAR> +void DoExtractFileName(const CHAR* spec, + const Component& path, + Component* file_name) { + // Handle empty paths: they have no file names. + if (!path.is_nonempty()) { + file_name->reset(); + return; + } + + // Search backwards for a parameter, which is a normally unused field in a + // URL delimited by a semicolon. We parse the parameter as part of the + // path, but here, we don't want to count it. The last semicolon is the + // parameter. The path should start with a slash, so we don't need to check + // the first one. + int file_end = path.end(); + for (int i = path.end() - 1; i > path.begin; i--) { + if (spec[i] == ';') { + file_end = i; + break; + } + } + + // Now search backwards from the filename end to the previous slash + // to find the beginning of the filename. + for (int i = file_end - 1; i >= path.begin; i--) { + if (IsURLSlash(spec[i])) { + // File name is everything following this character to the end + *file_name = MakeRange(i + 1, file_end); + return; + } + } + + // No slash found, this means the input was degenerate (generally paths + // will start with a slash). Let's call everything the file name. + *file_name = MakeRange(path.begin, file_end); + return; +} + +template<typename CHAR> +bool DoExtractQueryKeyValue(const CHAR* spec, + Component* query, + Component* key, + Component* value) { + if (!query->is_nonempty()) + return false; + + int start = query->begin; + int cur = start; + int end = query->end(); + + // We assume the beginning of the input is the beginning of the "key" and we + // skip to the end of it. + key->begin = cur; + while (cur < end && spec[cur] != '&' && spec[cur] != '=') + cur++; + key->len = cur - key->begin; + + // Skip the separator after the key (if any). + if (cur < end && spec[cur] == '=') + cur++; + + // Find the value part. + value->begin = cur; + while (cur < end && spec[cur] != '&') + cur++; + value->len = cur - value->begin; + + // Finally skip the next separator if any + if (cur < end && spec[cur] == '&') + cur++; + + // Save the new query + *query = MakeRange(cur, end); + return true; +} + +} // namespace + +Parsed::Parsed() : inner_parsed_(NULL) { +} + +Parsed::Parsed(const Parsed& other) : + scheme(other.scheme), + username(other.username), + password(other.password), + host(other.host), + port(other.port), + path(other.path), + query(other.query), + ref(other.ref), + inner_parsed_(NULL) { + if (other.inner_parsed_) + set_inner_parsed(*other.inner_parsed_); +} + +Parsed& Parsed::operator=(const Parsed& other) { + if (this != &other) { + scheme = other.scheme; + username = other.username; + password = other.password; + host = other.host; + port = other.port; + path = other.path; + query = other.query; + ref = other.ref; + if (other.inner_parsed_) + set_inner_parsed(*other.inner_parsed_); + else + clear_inner_parsed(); + } + return *this; +} + +Parsed::~Parsed() { + delete inner_parsed_; +} + +int Parsed::Length() const { + if (ref.is_valid()) + return ref.end(); + return CountCharactersBefore(REF, false); +} + +int Parsed::CountCharactersBefore(ComponentType type, + bool include_delimiter) const { + if (type == SCHEME) + return scheme.begin; + + // There will be some characters after the scheme like "://" and we don't + // know how many. Search forwards for the next thing until we find one. + int cur = 0; + if (scheme.is_valid()) + cur = scheme.end() + 1; // Advance over the ':' at the end of the scheme. + + if (username.is_valid()) { + if (type <= USERNAME) + return username.begin; + cur = username.end() + 1; // Advance over the '@' or ':' at the end. + } + + if (password.is_valid()) { + if (type <= PASSWORD) + return password.begin; + cur = password.end() + 1; // Advance over the '@' at the end. + } + + if (host.is_valid()) { + if (type <= HOST) + return host.begin; + cur = host.end(); + } + + if (port.is_valid()) { + if (type < PORT || (type == PORT && include_delimiter)) + return port.begin - 1; // Back over delimiter. + if (type == PORT) + return port.begin; // Don't want delimiter counted. + cur = port.end(); + } + + if (path.is_valid()) { + if (type <= PATH) + return path.begin; + cur = path.end(); + } + + if (query.is_valid()) { + if (type < QUERY || (type == QUERY && include_delimiter)) + return query.begin - 1; // Back over delimiter. + if (type == QUERY) + return query.begin; // Don't want delimiter counted. + cur = query.end(); + } + + if (ref.is_valid()) { + if (type == REF && !include_delimiter) + return ref.begin; // Back over delimiter. + + // When there is a ref and we get here, the component we wanted was before + // this and not found, so we always know the beginning of the ref is right. + return ref.begin - 1; // Don't want delimiter counted. + } + + return cur; +} + +Component Parsed::GetContent() const { + const int begin = CountCharactersBefore(USERNAME, false); + const int len = Length() - begin; + // For compatability with the standard URL parser, we treat no content as + // -1, rather than having a length of 0 (we normally wouldn't care so + // much for these non-standard URLs). + return len ? Component(begin, len) : Component(); +} + +bool ExtractScheme(const char* url, int url_len, Component* scheme) { + return DoExtractScheme(url, url_len, scheme); +} + +bool ExtractScheme(const base::char16* url, int url_len, Component* scheme) { + return DoExtractScheme(url, url_len, scheme); +} + +// This handles everything that may be an authority terminator, including +// backslash. For special backslash handling see DoParseAfterScheme. +bool IsAuthorityTerminator(base::char16 ch) { + return IsURLSlash(ch) || ch == '?' || ch == '#'; +} + +void ExtractFileName(const char* url, + const Component& path, + Component* file_name) { + DoExtractFileName(url, path, file_name); +} + +void ExtractFileName(const base::char16* url, + const Component& path, + Component* file_name) { + DoExtractFileName(url, path, file_name); +} + +bool ExtractQueryKeyValue(const char* url, + Component* query, + Component* key, + Component* value) { + return DoExtractQueryKeyValue(url, query, key, value); +} + +bool ExtractQueryKeyValue(const base::char16* url, + Component* query, + Component* key, + Component* value) { + return DoExtractQueryKeyValue(url, query, key, value); +} + +void ParseAuthority(const char* spec, + const Component& auth, + Component* username, + Component* password, + Component* hostname, + Component* port_num) { + DoParseAuthority(spec, auth, username, password, hostname, port_num); +} + +void ParseAuthority(const base::char16* spec, + const Component& auth, + Component* username, + Component* password, + Component* hostname, + Component* port_num) { + DoParseAuthority(spec, auth, username, password, hostname, port_num); +} + +int ParsePort(const char* url, const Component& port) { + return DoParsePort(url, port); +} + +int ParsePort(const base::char16* url, const Component& port) { + return DoParsePort(url, port); +} + +void ParseStandardURL(const char* url, int url_len, Parsed* parsed) { + DoParseStandardURL(url, url_len, parsed); +} + +void ParseStandardURL(const base::char16* url, int url_len, Parsed* parsed) { + DoParseStandardURL(url, url_len, parsed); +} + +void ParsePathURL(const char* url, + int url_len, + bool trim_path_end, + Parsed* parsed) { + DoParsePathURL(url, url_len, trim_path_end, parsed); +} + +void ParsePathURL(const base::char16* url, + int url_len, + bool trim_path_end, + Parsed* parsed) { + DoParsePathURL(url, url_len, trim_path_end, parsed); +} + +void ParseFileSystemURL(const char* url, int url_len, Parsed* parsed) { + DoParseFileSystemURL(url, url_len, parsed); +} + +void ParseFileSystemURL(const base::char16* url, int url_len, Parsed* parsed) { + DoParseFileSystemURL(url, url_len, parsed); +} + +void ParseMailtoURL(const char* url, int url_len, Parsed* parsed) { + DoParseMailtoURL(url, url_len, parsed); +} + +void ParseMailtoURL(const base::char16* url, int url_len, Parsed* parsed) { + DoParseMailtoURL(url, url_len, parsed); +} + +void ParsePathInternal(const char* spec, + const Component& path, + Component* filepath, + Component* query, + Component* ref) { + ParsePath(spec, path, filepath, query, ref); +} + +void ParsePathInternal(const base::char16* spec, + const Component& path, + Component* filepath, + Component* query, + Component* ref) { + ParsePath(spec, path, filepath, query, ref); +} + +void ParseAfterScheme(const char* spec, + int spec_len, + int after_scheme, + Parsed* parsed) { + DoParseAfterScheme(spec, spec_len, after_scheme, parsed); +} + +void ParseAfterScheme(const base::char16* spec, + int spec_len, + int after_scheme, + Parsed* parsed) { + DoParseAfterScheme(spec, spec_len, after_scheme, parsed); +} + +} // namespace url
diff --git a/third_party/mozilla/url_parse.h b/third_party/mozilla/url_parse.h new file mode 100644 index 0000000..71dbb78 --- /dev/null +++ b/third_party/mozilla/url_parse.h
@@ -0,0 +1,372 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_THIRD_PARTY_MOZILLA_URL_PARSE_H_ +#define URL_THIRD_PARTY_MOZILLA_URL_PARSE_H_ + +#include <string> + +#include "base/basictypes.h" +#include "base/strings/string16.h" +#include "url/url_export.h" + +namespace url { + +// Deprecated, but WebKit/WebCore/platform/KURLGooglePrivate.h and +// KURLGoogle.cpp still rely on this type. +typedef base::char16 UTF16Char; + +// Component ------------------------------------------------------------------ + +// Represents a substring for URL parsing. +struct Component { + Component() : begin(0), len(-1) {} + + // Normal constructor: takes an offset and a length. + Component(int b, int l) : begin(b), len(l) {} + + int end() const { + return begin + len; + } + + // Returns true if this component is valid, meaning the length is given. Even + // valid components may be empty to record the fact that they exist. + bool is_valid() const { + return (len != -1); + } + + // Returns true if the given component is specified on false, the component + // is either empty or invalid. + bool is_nonempty() const { + return (len > 0); + } + + void reset() { + begin = 0; + len = -1; + } + + bool operator==(const Component& other) const { + return begin == other.begin && len == other.len; + } + + int begin; // Byte offset in the string of this component. + int len; // Will be -1 if the component is unspecified. +}; + +// Helper that returns a component created with the given begin and ending +// points. The ending point is non-inclusive. +inline Component MakeRange(int begin, int end) { + return Component(begin, end - begin); +} + +// Parsed --------------------------------------------------------------------- + +// A structure that holds the identified parts of an input URL. This structure +// does NOT store the URL itself. The caller will have to store the URL text +// and its corresponding Parsed structure separately. +// +// Typical usage would be: +// +// Parsed parsed; +// Component scheme; +// if (!ExtractScheme(url, url_len, &scheme)) +// return I_CAN_NOT_FIND_THE_SCHEME_DUDE; +// +// if (IsStandardScheme(url, scheme)) // Not provided by this component +// ParseStandardURL(url, url_len, &parsed); +// else if (IsFileURL(url, scheme)) // Not provided by this component +// ParseFileURL(url, url_len, &parsed); +// else +// ParsePathURL(url, url_len, &parsed); +// +struct URL_EXPORT Parsed { + // Identifies different components. + enum ComponentType { + SCHEME, + USERNAME, + PASSWORD, + HOST, + PORT, + PATH, + QUERY, + REF, + }; + + // The default constructor is sufficient for the components, but inner_parsed_ + // requires special handling. + Parsed(); + Parsed(const Parsed&); + Parsed& operator=(const Parsed&); + ~Parsed(); + + // Returns the length of the URL (the end of the last component). + // + // Note that for some invalid, non-canonical URLs, this may not be the length + // of the string. For example "http://": the parsed structure will only + // contain an entry for the four-character scheme, and it doesn't know about + // the "://". For all other last-components, it will return the real length. + int Length() const; + + // Returns the number of characters before the given component if it exists, + // or where the component would be if it did exist. This will return the + // string length if the component would be appended to the end. + // + // Note that this can get a little funny for the port, query, and ref + // components which have a delimiter that is not counted as part of the + // component. The |include_delimiter| flag controls if you want this counted + // as part of the component or not when the component exists. + // + // This example shows the difference between the two flags for two of these + // delimited components that is present (the port and query) and one that + // isn't (the reference). The components that this flag affects are marked + // with a *. + // 0 1 2 + // 012345678901234567890 + // Example input: http://foo:80/?query + // include_delim=true, ...=false ("<-" indicates different) + // SCHEME: 0 0 + // USERNAME: 5 5 + // PASSWORD: 5 5 + // HOST: 7 7 + // *PORT: 10 11 <- + // PATH: 13 13 + // *QUERY: 14 15 <- + // *REF: 20 20 + // + int CountCharactersBefore(ComponentType type, bool include_delimiter) const; + + // Scheme without the colon: "http://foo"/ would have a scheme of "http". + // The length will be -1 if no scheme is specified ("foo.com"), or 0 if there + // is a colon but no scheme (":foo"). Note that the scheme is not guaranteed + // to start at the beginning of the string if there are preceeding whitespace + // or control characters. + Component scheme; + + // Username. Specified in URLs with an @ sign before the host. See |password| + Component username; + + // Password. The length will be -1 if unspecified, 0 if specified but empty. + // Not all URLs with a username have a password, as in "http://me@host/". + // The password is separated form the username with a colon, as in + // "http://me:secret@host/" + Component password; + + // Host name. + Component host; + + // Port number. + Component port; + + // Path, this is everything following the host name, stopping at the query of + // ref delimiter (if any). Length will be -1 if unspecified. This includes + // the preceeding slash, so the path on http://www.google.com/asdf" is + // "/asdf". As a result, it is impossible to have a 0 length path, it will + // be -1 in cases like "http://host?foo". + // Note that we treat backslashes the same as slashes. + Component path; + + // Stuff between the ? and the # after the path. This does not include the + // preceeding ? character. Length will be -1 if unspecified, 0 if there is + // a question mark but no query string. + Component query; + + // Indicated by a #, this is everything following the hash sign (not + // including it). If there are multiple hash signs, we'll use the last one. + // Length will be -1 if there is no hash sign, or 0 if there is one but + // nothing follows it. + Component ref; + + // The URL spec from the character after the scheme: until the end of the + // URL, regardless of the scheme. This is mostly useful for 'opaque' non- + // hierarchical schemes like data: and javascript: as a convient way to get + // the string with the scheme stripped off. + Component GetContent() const; + + // This is used for nested URL types, currently only filesystem. If you + // parse a filesystem URL, the resulting Parsed will have a nested + // inner_parsed_ to hold the parsed inner URL's component information. + // For all other url types [including the inner URL], it will be NULL. + Parsed* inner_parsed() const { + return inner_parsed_; + } + + void set_inner_parsed(const Parsed& inner_parsed) { + if (!inner_parsed_) + inner_parsed_ = new Parsed(inner_parsed); + else + *inner_parsed_ = inner_parsed; + } + + void clear_inner_parsed() { + if (inner_parsed_) { + delete inner_parsed_; + inner_parsed_ = NULL; + } + } + + private: + Parsed* inner_parsed_; // This object is owned and managed by this struct. +}; + +// Initialization functions --------------------------------------------------- +// +// These functions parse the given URL, filling in all of the structure's +// components. These functions can not fail, they will always do their best +// at interpreting the input given. +// +// The string length of the URL MUST be specified, we do not check for NULLs +// at any point in the process, and will actually handle embedded NULLs. +// +// IMPORTANT: These functions do NOT hang on to the given pointer or copy it +// in any way. See the comment above the struct. +// +// The 8-bit versions require UTF-8 encoding. + +// StandardURL is for when the scheme is known to be one that has an +// authority (host) like "http". This function will not handle weird ones +// like "about:" and "javascript:", or do the right thing for "file:" URLs. +URL_EXPORT void ParseStandardURL(const char* url, + int url_len, + Parsed* parsed); +URL_EXPORT void ParseStandardURL(const base::char16* url, + int url_len, + Parsed* parsed); + +// PathURL is for when the scheme is known not to have an authority (host) +// section but that aren't file URLs either. The scheme is parsed, and +// everything after the scheme is considered as the path. This is used for +// things like "about:" and "javascript:" +URL_EXPORT void ParsePathURL(const char* url, + int url_len, + bool trim_path_end, + Parsed* parsed); +URL_EXPORT void ParsePathURL(const base::char16* url, + int url_len, + bool trim_path_end, + Parsed* parsed); + +// FileURL is for file URLs. There are some special rules for interpreting +// these. +URL_EXPORT void ParseFileURL(const char* url, int url_len, Parsed* parsed); +URL_EXPORT void ParseFileURL(const base::char16* url, + int url_len, + Parsed* parsed); + +// Filesystem URLs are structured differently than other URLs. +URL_EXPORT void ParseFileSystemURL(const char* url, + int url_len, + Parsed* parsed); +URL_EXPORT void ParseFileSystemURL(const base::char16* url, + int url_len, + Parsed* parsed); + +// MailtoURL is for mailto: urls. They are made up scheme,path,query +URL_EXPORT void ParseMailtoURL(const char* url, int url_len, Parsed* parsed); +URL_EXPORT void ParseMailtoURL(const base::char16* url, + int url_len, + Parsed* parsed); + +// Helper functions ----------------------------------------------------------- + +// Locates the scheme according to the URL parser's rules. This function is +// designed so the caller can find the scheme and call the correct Init* +// function according to their known scheme types. +// +// It also does not perform any validation on the scheme. +// +// This function will return true if the scheme is found and will put the +// scheme's range into *scheme. False means no scheme could be found. Note +// that a URL beginning with a colon has a scheme, but it is empty, so this +// function will return true but *scheme will = (0,0). +// +// The scheme is found by skipping spaces and control characters at the +// beginning, and taking everything from there to the first colon to be the +// scheme. The character at scheme.end() will be the colon (we may enhance +// this to handle full width colons or something, so don't count on the +// actual character value). The character at scheme.end()+1 will be the +// beginning of the rest of the URL, be it the authority or the path (or the +// end of the string). +// +// The 8-bit version requires UTF-8 encoding. +URL_EXPORT bool ExtractScheme(const char* url, + int url_len, + Component* scheme); +URL_EXPORT bool ExtractScheme(const base::char16* url, + int url_len, + Component* scheme); + +// Returns true if ch is a character that terminates the authority segment +// of a URL. +URL_EXPORT bool IsAuthorityTerminator(base::char16 ch); + +// Does a best effort parse of input |spec|, in range |auth|. If a particular +// component is not found, it will be set to invalid. +URL_EXPORT void ParseAuthority(const char* spec, + const Component& auth, + Component* username, + Component* password, + Component* hostname, + Component* port_num); +URL_EXPORT void ParseAuthority(const base::char16* spec, + const Component& auth, + Component* username, + Component* password, + Component* hostname, + Component* port_num); + +// Computes the integer port value from the given port component. The port +// component should have been identified by one of the init functions on +// |Parsed| for the given input url. +// +// The return value will be a positive integer between 0 and 64K, or one of +// the two special values below. +enum SpecialPort { PORT_UNSPECIFIED = -1, PORT_INVALID = -2 }; +URL_EXPORT int ParsePort(const char* url, const Component& port); +URL_EXPORT int ParsePort(const base::char16* url, const Component& port); + +// Extracts the range of the file name in the given url. The path must +// already have been computed by the parse function, and the matching URL +// and extracted path are provided to this function. The filename is +// defined as being everything from the last slash/backslash of the path +// to the end of the path. +// +// The file name will be empty if the path is empty or there is nothing +// following the last slash. +// +// The 8-bit version requires UTF-8 encoding. +URL_EXPORT void ExtractFileName(const char* url, + const Component& path, + Component* file_name); +URL_EXPORT void ExtractFileName(const base::char16* url, + const Component& path, + Component* file_name); + +// Extract the first key/value from the range defined by |*query|. Updates +// |*query| to start at the end of the extracted key/value pair. This is +// designed for use in a loop: you can keep calling it with the same query +// object and it will iterate over all items in the query. +// +// Some key/value pairs may have the key, the value, or both be empty (for +// example, the query string "?&"). These will be returned. Note that an empty +// last parameter "foo.com?" or foo.com?a&" will not be returned, this case +// is the same as "done." +// +// The initial query component should not include the '?' (this is the default +// for parsed URLs). +// +// If no key/value are found |*key| and |*value| will be unchanged and it will +// return false. +URL_EXPORT bool ExtractQueryKeyValue(const char* url, + Component* query, + Component* key, + Component* value); +URL_EXPORT bool ExtractQueryKeyValue(const base::char16* url, + Component* query, + Component* key, + Component* value); + +} // namespace url + +#endif // URL_THIRD_PARTY_MOZILLA_URL_PARSE_H_
diff --git a/url.gyp b/url.gyp new file mode 100644 index 0000000..0ffc51a --- /dev/null +++ b/url.gyp
@@ -0,0 +1,130 @@ +# Copyright 2013 The Chromium Authors. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +{ + 'variables': { + 'chromium_code': 1, + }, + 'includes': [ + 'url_srcs.gypi', + ], + 'targets': [ + { + # Note, this target_name cannot be 'url', because that will generate + # 'url.dll' for a Windows component build, and that will confuse Windows, + # which has a system DLL with the same name. + 'target_name': 'url_lib', + 'type': '<(component)', + 'dependencies': [ + '../base/base.gyp:base', + '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations', + '../third_party/icu/icu.gyp:icui18n', + '../third_party/icu/icu.gyp:icuuc', + ], + 'sources': [ + '<@(gurl_sources)', + ], + 'direct_dependent_settings': { + 'include_dirs': [ + '..', + ], + }, + 'defines': [ + 'URL_IMPLEMENTATION', + ], + 'conditions': [ + ['use_icu_alternatives_on_android==1', { + 'sources!': [ + 'url_canon_icu.cc', + 'url_canon_icu.h', + ], + 'dependencies!': [ + '../third_party/icu/icu.gyp:icui18n', + '../third_party/icu/icu.gyp:icuuc', + ], + }], + ['use_icu_alternatives_on_android==1 and OS=="android"', { + 'dependencies': [ + 'url_java', + 'url_jni_headers', + ], + 'sources': [ + 'url_canon_icu_alternatives_android.cc', + 'url_canon_icu_alternatives_android.h', + ], + }], + ], + # TODO(jschuh): crbug.com/167187 fix size_t to int truncations. + 'msvs_disabled_warnings': [4267, ], + }, + { + 'target_name': 'url_unittests', + 'type': 'executable', + 'dependencies': [ + '../base/base.gyp:run_all_unittests', + '../testing/gtest.gyp:gtest', + '../third_party/icu/icu.gyp:icuuc', + 'url_lib', + ], + 'sources': [ + 'gurl_unittest.cc', + 'origin_unittest.cc', + 'url_canon_icu_unittest.cc', + 'url_canon_unittest.cc', + 'url_parse_unittest.cc', + 'url_test_utils.h', + 'url_util_unittest.cc', + ], + 'conditions': [ + ['os_posix==1 and OS!="mac" and OS!="ios" and use_allocator!="none"', + { + 'dependencies': [ + '../base/allocator/allocator.gyp:allocator', + ], + } + ], + ['use_icu_alternatives_on_android==1', + { + 'sources!': [ + 'url_canon_icu_unittest.cc', + ], + 'dependencies!': [ + '../third_party/icu/icu.gyp:icuuc', + ], + } + ], + ], + # TODO(jschuh): crbug.com/167187 fix size_t to int truncations. + 'msvs_disabled_warnings': [4267, ], + }, + ], + 'conditions': [ + ['use_icu_alternatives_on_android==1 and OS=="android"', { + 'targets': [ + { + 'target_name': 'url_jni_headers', + 'type': 'none', + 'sources': [ + 'android/java/src/org/chromium/url/IDNStringUtil.java' + ], + 'variables': { + 'jni_gen_package': 'url', + }, + 'includes': [ '../build/jni_generator.gypi' ], + }, + { + 'target_name': 'url_java', + 'type': 'none', + 'variables': { + 'java_in_dir': '../url/android/java', + }, + 'dependencies': [ + '../base/base.gyp:base', + ], + 'includes': [ '../build/java.gypi' ], + }, + ], + }], + ], +}
diff --git a/url_canon.h b/url_canon.h new file mode 100644 index 0000000..624eeaf --- /dev/null +++ b/url_canon.h
@@ -0,0 +1,892 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_CANON_H_ +#define URL_URL_CANON_H_ + +#include <stdlib.h> +#include <string.h> + +#include "base/strings/string16.h" +#include "url/url_export.h" +#include "url/url_parse.h" + +namespace url { + +// Canonicalizer output ------------------------------------------------------- + +// Base class for the canonicalizer output, this maintains a buffer and +// supports simple resizing and append operations on it. +// +// It is VERY IMPORTANT that no virtual function calls be made on the common +// code path. We only have two virtual function calls, the destructor and a +// resize function that is called when the existing buffer is not big enough. +// The derived class is then in charge of setting up our buffer which we will +// manage. +template<typename T> +class CanonOutputT { + public: + CanonOutputT() : buffer_(NULL), buffer_len_(0), cur_len_(0) { + } + virtual ~CanonOutputT() { + } + + // Implemented to resize the buffer. This function should update the buffer + // pointer to point to the new buffer, and any old data up to |cur_len_| in + // the buffer must be copied over. + // + // The new size |sz| must be larger than buffer_len_. + virtual void Resize(int sz) = 0; + + // Accessor for returning a character at a given position. The input offset + // must be in the valid range. + inline char at(int offset) const { + return buffer_[offset]; + } + + // Sets the character at the given position. The given position MUST be less + // than the length(). + inline void set(int offset, int ch) { + buffer_[offset] = ch; + } + + // Returns the number of characters currently in the buffer. + inline int length() const { + return cur_len_; + } + + // Returns the current capacity of the buffer. The length() is the number of + // characters that have been declared to be written, but the capacity() is + // the number that can be written without reallocation. If the caller must + // write many characters at once, it can make sure there is enough capacity, + // write the data, then use set_size() to declare the new length(). + int capacity() const { + return buffer_len_; + } + + // Called by the user of this class to get the output. The output will NOT + // be NULL-terminated. Call length() to get the + // length. + const T* data() const { + return buffer_; + } + T* data() { + return buffer_; + } + + // Shortens the URL to the new length. Used for "backing up" when processing + // relative paths. This can also be used if an external function writes a lot + // of data to the buffer (when using the "Raw" version below) beyond the end, + // to declare the new length. + // + // This MUST NOT be used to expand the size of the buffer beyond capacity(). + void set_length(int new_len) { + cur_len_ = new_len; + } + + // This is the most performance critical function, since it is called for + // every character. + void push_back(T ch) { + // In VC2005, putting this common case first speeds up execution + // dramatically because this branch is predicted as taken. + if (cur_len_ < buffer_len_) { + buffer_[cur_len_] = ch; + cur_len_++; + return; + } + + // Grow the buffer to hold at least one more item. Hopefully we won't have + // to do this very often. + if (!Grow(1)) + return; + + // Actually do the insertion. + buffer_[cur_len_] = ch; + cur_len_++; + } + + // Appends the given string to the output. + void Append(const T* str, int str_len) { + if (cur_len_ + str_len > buffer_len_) { + if (!Grow(cur_len_ + str_len - buffer_len_)) + return; + } + for (int i = 0; i < str_len; i++) + buffer_[cur_len_ + i] = str[i]; + cur_len_ += str_len; + } + + protected: + // Grows the given buffer so that it can fit at least |min_additional| + // characters. Returns true if the buffer could be resized, false on OOM. + bool Grow(int min_additional) { + static const int kMinBufferLen = 16; + int new_len = (buffer_len_ == 0) ? kMinBufferLen : buffer_len_; + do { + if (new_len >= (1 << 30)) // Prevent overflow below. + return false; + new_len *= 2; + } while (new_len < buffer_len_ + min_additional); + Resize(new_len); + return true; + } + + T* buffer_; + int buffer_len_; + + // Used characters in the buffer. + int cur_len_; +}; + +// Simple implementation of the CanonOutput using new[]. This class +// also supports a static buffer so if it is allocated on the stack, most +// URLs can be canonicalized with no heap allocations. +template<typename T, int fixed_capacity = 1024> +class RawCanonOutputT : public CanonOutputT<T> { + public: + RawCanonOutputT() : CanonOutputT<T>() { + this->buffer_ = fixed_buffer_; + this->buffer_len_ = fixed_capacity; + } + virtual ~RawCanonOutputT() { + if (this->buffer_ != fixed_buffer_) + delete[] this->buffer_; + } + + virtual void Resize(int sz) { + T* new_buf = new T[sz]; + memcpy(new_buf, this->buffer_, + sizeof(T) * (this->cur_len_ < sz ? this->cur_len_ : sz)); + if (this->buffer_ != fixed_buffer_) + delete[] this->buffer_; + this->buffer_ = new_buf; + this->buffer_len_ = sz; + } + + protected: + T fixed_buffer_[fixed_capacity]; +}; + +// Normally, all canonicalization output is in narrow characters. We support +// the templates so it can also be used internally if a wide buffer is +// required. +typedef CanonOutputT<char> CanonOutput; +typedef CanonOutputT<base::char16> CanonOutputW; + +template<int fixed_capacity> +class RawCanonOutput : public RawCanonOutputT<char, fixed_capacity> {}; +template<int fixed_capacity> +class RawCanonOutputW : public RawCanonOutputT<base::char16, fixed_capacity> {}; + +// Character set converter ---------------------------------------------------- +// +// Converts query strings into a custom encoding. The embedder can supply an +// implementation of this class to interface with their own character set +// conversion libraries. +// +// Embedders will want to see the unit test for the ICU version. + +class URL_EXPORT CharsetConverter { + public: + CharsetConverter() {} + virtual ~CharsetConverter() {} + + // Converts the given input string from UTF-16 to whatever output format the + // converter supports. This is used only for the query encoding conversion, + // which does not fail. Instead, the converter should insert "invalid + // character" characters in the output for invalid sequences, and do the + // best it can. + // + // If the input contains a character not representable in the output + // character set, the converter should append the HTML entity sequence in + // decimal, (such as "你") with escaping of the ampersand, number + // sign, and semicolon (in the previous example it would be + // "%26%2320320%3B"). This rule is based on what IE does in this situation. + virtual void ConvertFromUTF16(const base::char16* input, + int input_len, + CanonOutput* output) = 0; +}; + +// Whitespace ----------------------------------------------------------------- + +// Searches for whitespace that should be removed from the middle of URLs, and +// removes it. Removed whitespace are tabs and newlines, but NOT spaces. Spaces +// are preserved, which is what most browsers do. A pointer to the output will +// be returned, and the length of that output will be in |output_len|. +// +// This should be called before parsing if whitespace removal is desired (which +// it normally is when you are canonicalizing). +// +// If no whitespace is removed, this function will not use the buffer and will +// return a pointer to the input, to avoid the extra copy. If modification is +// required, the given |buffer| will be used and the returned pointer will +// point to the beginning of the buffer. +// +// Therefore, callers should not use the buffer, since it may actually be empty, +// use the computed pointer and |*output_len| instead. +URL_EXPORT const char* RemoveURLWhitespace(const char* input, int input_len, + CanonOutputT<char>* buffer, + int* output_len); +URL_EXPORT const base::char16* RemoveURLWhitespace( + const base::char16* input, + int input_len, + CanonOutputT<base::char16>* buffer, + int* output_len); + +// IDN ------------------------------------------------------------------------ + +// Converts the Unicode input representing a hostname to ASCII using IDN rules. +// The output must fall in the ASCII range, but will be encoded in UTF-16. +// +// On success, the output will be filled with the ASCII host name and it will +// return true. Unlike most other canonicalization functions, this assumes that +// the output is empty. The beginning of the host will be at offset 0, and +// the length of the output will be set to the length of the new host name. +// +// On error, returns false. The output in this case is undefined. +URL_EXPORT bool IDNToASCII(const base::char16* src, + int src_len, + CanonOutputW* output); + +// Piece-by-piece canonicalizers ---------------------------------------------- +// +// These individual canonicalizers append the canonicalized versions of the +// corresponding URL component to the given std::string. The spec and the +// previously-identified range of that component are the input. The range of +// the canonicalized component will be written to the output component. +// +// These functions all append to the output so they can be chained. Make sure +// the output is empty when you start. +// +// These functions returns boolean values indicating success. On failure, they +// will attempt to write something reasonable to the output so that, if +// displayed to the user, they will recognise it as something that's messed up. +// Nothing more should ever be done with these invalid URLs, however. + +// Scheme: Appends the scheme and colon to the URL. The output component will +// indicate the range of characters up to but not including the colon. +// +// Canonical URLs always have a scheme. If the scheme is not present in the +// input, this will just write the colon to indicate an empty scheme. Does not +// append slashes which will be needed before any authority components for most +// URLs. +// +// The 8-bit version requires UTF-8 encoding. +URL_EXPORT bool CanonicalizeScheme(const char* spec, + const Component& scheme, + CanonOutput* output, + Component* out_scheme); +URL_EXPORT bool CanonicalizeScheme(const base::char16* spec, + const Component& scheme, + CanonOutput* output, + Component* out_scheme); + +// User info: username/password. If present, this will add the delimiters so +// the output will be "<username>:<password>@" or "<username>@". Empty +// username/password pairs, or empty passwords, will get converted to +// nonexistant in the canonical version. +// +// The components for the username and password refer to ranges in the +// respective source strings. Usually, these will be the same string, which +// is legal as long as the two components don't overlap. +// +// The 8-bit version requires UTF-8 encoding. +URL_EXPORT bool CanonicalizeUserInfo(const char* username_source, + const Component& username, + const char* password_source, + const Component& password, + CanonOutput* output, + Component* out_username, + Component* out_password); +URL_EXPORT bool CanonicalizeUserInfo(const base::char16* username_source, + const Component& username, + const base::char16* password_source, + const Component& password, + CanonOutput* output, + Component* out_username, + Component* out_password); + +// This structure holds detailed state exported from the IP/Host canonicalizers. +// Additional fields may be added as callers require them. +struct CanonHostInfo { + CanonHostInfo() : family(NEUTRAL), num_ipv4_components(0), out_host() {} + + // Convenience function to test if family is an IP address. + bool IsIPAddress() const { return family == IPV4 || family == IPV6; } + + // This field summarizes how the input was classified by the canonicalizer. + enum Family { + NEUTRAL, // - Doesn't resemble an IP address. As far as the IP + // canonicalizer is concerned, it should be treated as a + // hostname. + BROKEN, // - Almost an IP, but was not canonicalized. This could be an + // IPv4 address where truncation occurred, or something + // containing the special characters :[] which did not parse + // as an IPv6 address. Never attempt to connect to this + // address, because it might actually succeed! + IPV4, // - Successfully canonicalized as an IPv4 address. + IPV6, // - Successfully canonicalized as an IPv6 address. + }; + Family family; + + // If |family| is IPV4, then this is the number of nonempty dot-separated + // components in the input text, from 1 to 4. If |family| is not IPV4, + // this value is undefined. + int num_ipv4_components; + + // Location of host within the canonicalized output. + // CanonicalizeIPAddress() only sets this field if |family| is IPV4 or IPV6. + // CanonicalizeHostVerbose() always sets it. + Component out_host; + + // |address| contains the parsed IP Address (if any) in its first + // AddressLength() bytes, in network order. If IsIPAddress() is false + // AddressLength() will return zero and the content of |address| is undefined. + unsigned char address[16]; + + // Convenience function to calculate the length of an IP address corresponding + // to the current IP version in |family|, if any. For use with |address|. + int AddressLength() const { + return family == IPV4 ? 4 : (family == IPV6 ? 16 : 0); + } +}; + + +// Host. +// +// The 8-bit version requires UTF-8 encoding. Use this version when you only +// need to know whether canonicalization succeeded. +URL_EXPORT bool CanonicalizeHost(const char* spec, + const Component& host, + CanonOutput* output, + Component* out_host); +URL_EXPORT bool CanonicalizeHost(const base::char16* spec, + const Component& host, + CanonOutput* output, + Component* out_host); + +// Extended version of CanonicalizeHost, which returns additional information. +// Use this when you need to know whether the hostname was an IP address. +// A successful return is indicated by host_info->family != BROKEN. See the +// definition of CanonHostInfo above for details. +URL_EXPORT void CanonicalizeHostVerbose(const char* spec, + const Component& host, + CanonOutput* output, + CanonHostInfo* host_info); +URL_EXPORT void CanonicalizeHostVerbose(const base::char16* spec, + const Component& host, + CanonOutput* output, + CanonHostInfo* host_info); + +// IP addresses. +// +// Tries to interpret the given host name as an IPv4 or IPv6 address. If it is +// an IP address, it will canonicalize it as such, appending it to |output|. +// Additional status information is returned via the |*host_info| parameter. +// See the definition of CanonHostInfo above for details. +// +// This is called AUTOMATICALLY from the host canonicalizer, which ensures that +// the input is unescaped and name-prepped, etc. It should not normally be +// necessary or wise to call this directly. +URL_EXPORT void CanonicalizeIPAddress(const char* spec, + const Component& host, + CanonOutput* output, + CanonHostInfo* host_info); +URL_EXPORT void CanonicalizeIPAddress(const base::char16* spec, + const Component& host, + CanonOutput* output, + CanonHostInfo* host_info); + +// Port: this function will add the colon for the port if a port is present. +// The caller can pass PORT_UNSPECIFIED as the +// default_port_for_scheme argument if there is no default port. +// +// The 8-bit version requires UTF-8 encoding. +URL_EXPORT bool CanonicalizePort(const char* spec, + const Component& port, + int default_port_for_scheme, + CanonOutput* output, + Component* out_port); +URL_EXPORT bool CanonicalizePort(const base::char16* spec, + const Component& port, + int default_port_for_scheme, + CanonOutput* output, + Component* out_port); + +// Returns the default port for the given canonical scheme, or PORT_UNSPECIFIED +// if the scheme is unknown. +URL_EXPORT int DefaultPortForScheme(const char* scheme, int scheme_len); + +// Path. If the input does not begin in a slash (including if the input is +// empty), we'll prepend a slash to the path to make it canonical. +// +// The 8-bit version assumes UTF-8 encoding, but does not verify the validity +// of the UTF-8 (i.e., you can have invalid UTF-8 sequences, invalid +// characters, etc.). Normally, URLs will come in as UTF-16, so this isn't +// an issue. Somebody giving us an 8-bit path is responsible for generating +// the path that the server expects (we'll escape high-bit characters), so +// if something is invalid, it's their problem. +URL_EXPORT bool CanonicalizePath(const char* spec, + const Component& path, + CanonOutput* output, + Component* out_path); +URL_EXPORT bool CanonicalizePath(const base::char16* spec, + const Component& path, + CanonOutput* output, + Component* out_path); + +// Canonicalizes the input as a file path. This is like CanonicalizePath except +// that it also handles Windows drive specs. For example, the path can begin +// with "c|\" and it will get properly canonicalized to "C:/". +// The string will be appended to |*output| and |*out_path| will be updated. +// +// The 8-bit version requires UTF-8 encoding. +URL_EXPORT bool FileCanonicalizePath(const char* spec, + const Component& path, + CanonOutput* output, + Component* out_path); +URL_EXPORT bool FileCanonicalizePath(const base::char16* spec, + const Component& path, + CanonOutput* output, + Component* out_path); + +// Query: Prepends the ? if needed. +// +// The 8-bit version requires the input to be UTF-8 encoding. Incorrectly +// encoded characters (in UTF-8 or UTF-16) will be replaced with the Unicode +// "invalid character." This function can not fail, we always just try to do +// our best for crazy input here since web pages can set it themselves. +// +// This will convert the given input into the output encoding that the given +// character set converter object provides. The converter will only be called +// if necessary, for ASCII input, no conversions are necessary. +// +// The converter can be NULL. In this case, the output encoding will be UTF-8. +URL_EXPORT void CanonicalizeQuery(const char* spec, + const Component& query, + CharsetConverter* converter, + CanonOutput* output, + Component* out_query); +URL_EXPORT void CanonicalizeQuery(const base::char16* spec, + const Component& query, + CharsetConverter* converter, + CanonOutput* output, + Component* out_query); + +// Ref: Prepends the # if needed. The output will be UTF-8 (this is the only +// canonicalizer that does not produce ASCII output). The output is +// guaranteed to be valid UTF-8. +// +// This function will not fail. If the input is invalid UTF-8/UTF-16, we'll use +// the "Unicode replacement character" for the confusing bits and copy the rest. +URL_EXPORT void CanonicalizeRef(const char* spec, + const Component& path, + CanonOutput* output, + Component* out_path); +URL_EXPORT void CanonicalizeRef(const base::char16* spec, + const Component& path, + CanonOutput* output, + Component* out_path); + +// Full canonicalizer --------------------------------------------------------- +// +// These functions replace any string contents, rather than append as above. +// See the above piece-by-piece functions for information specific to +// canonicalizing individual components. +// +// The output will be ASCII except the reference fragment, which may be UTF-8. +// +// The 8-bit versions require UTF-8 encoding. + +// Use for standard URLs with authorities and paths. +URL_EXPORT bool CanonicalizeStandardURL(const char* spec, + int spec_len, + const Parsed& parsed, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed); +URL_EXPORT bool CanonicalizeStandardURL(const base::char16* spec, + int spec_len, + const Parsed& parsed, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed); + +// Use for file URLs. +URL_EXPORT bool CanonicalizeFileURL(const char* spec, + int spec_len, + const Parsed& parsed, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed); +URL_EXPORT bool CanonicalizeFileURL(const base::char16* spec, + int spec_len, + const Parsed& parsed, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed); + +// Use for filesystem URLs. +URL_EXPORT bool CanonicalizeFileSystemURL(const char* spec, + int spec_len, + const Parsed& parsed, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed); +URL_EXPORT bool CanonicalizeFileSystemURL(const base::char16* spec, + int spec_len, + const Parsed& parsed, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed); + +// Use for path URLs such as javascript. This does not modify the path in any +// way, for example, by escaping it. +URL_EXPORT bool CanonicalizePathURL(const char* spec, + int spec_len, + const Parsed& parsed, + CanonOutput* output, + Parsed* new_parsed); +URL_EXPORT bool CanonicalizePathURL(const base::char16* spec, + int spec_len, + const Parsed& parsed, + CanonOutput* output, + Parsed* new_parsed); + +// Use for mailto URLs. This "canonicalizes" the url into a path and query +// component. It does not attempt to merge "to" fields. It uses UTF-8 for +// the query encoding if there is a query. This is because a mailto URL is +// really intended for an external mail program, and the encoding of a page, +// etc. which would influence a query encoding normally are irrelevant. +URL_EXPORT bool CanonicalizeMailtoURL(const char* spec, + int spec_len, + const Parsed& parsed, + CanonOutput* output, + Parsed* new_parsed); +URL_EXPORT bool CanonicalizeMailtoURL(const base::char16* spec, + int spec_len, + const Parsed& parsed, + CanonOutput* output, + Parsed* new_parsed); + +// Part replacer -------------------------------------------------------------- + +// Internal structure used for storing separate strings for each component. +// The basic canonicalization functions use this structure internally so that +// component replacement (different strings for different components) can be +// treated on the same code path as regular canonicalization (the same string +// for each component). +// +// A Parsed structure usually goes along with this. Those +// components identify offsets within these strings, so that they can all be +// in the same string, or spread arbitrarily across different ones. +// +// This structures does not own any data. It is the caller's responsibility to +// ensure that the data the pointers point to stays in scope and is not +// modified. +template<typename CHAR> +struct URLComponentSource { + // Constructor normally used by callers wishing to replace components. This + // will make them all NULL, which is no replacement. The caller would then + // override the components they want to replace. + URLComponentSource() + : scheme(NULL), + username(NULL), + password(NULL), + host(NULL), + port(NULL), + path(NULL), + query(NULL), + ref(NULL) { + } + + // Constructor normally used internally to initialize all the components to + // point to the same spec. + explicit URLComponentSource(const CHAR* default_value) + : scheme(default_value), + username(default_value), + password(default_value), + host(default_value), + port(default_value), + path(default_value), + query(default_value), + ref(default_value) { + } + + const CHAR* scheme; + const CHAR* username; + const CHAR* password; + const CHAR* host; + const CHAR* port; + const CHAR* path; + const CHAR* query; + const CHAR* ref; +}; + +// This structure encapsulates information on modifying a URL. Each component +// may either be left unchanged, replaced, or deleted. +// +// By default, each component is unchanged. For those components that should be +// modified, call either Set* or Clear* to modify it. +// +// The string passed to Set* functions DOES NOT GET COPIED AND MUST BE KEPT +// IN SCOPE BY THE CALLER for as long as this object exists! +// +// Prefer the 8-bit replacement version if possible since it is more efficient. +template<typename CHAR> +class Replacements { + public: + Replacements() { + } + + // Scheme + void SetScheme(const CHAR* s, const Component& comp) { + sources_.scheme = s; + components_.scheme = comp; + } + // Note: we don't have a ClearScheme since this doesn't make any sense. + bool IsSchemeOverridden() const { return sources_.scheme != NULL; } + + // Username + void SetUsername(const CHAR* s, const Component& comp) { + sources_.username = s; + components_.username = comp; + } + void ClearUsername() { + sources_.username = Placeholder(); + components_.username = Component(); + } + bool IsUsernameOverridden() const { return sources_.username != NULL; } + + // Password + void SetPassword(const CHAR* s, const Component& comp) { + sources_.password = s; + components_.password = comp; + } + void ClearPassword() { + sources_.password = Placeholder(); + components_.password = Component(); + } + bool IsPasswordOverridden() const { return sources_.password != NULL; } + + // Host + void SetHost(const CHAR* s, const Component& comp) { + sources_.host = s; + components_.host = comp; + } + void ClearHost() { + sources_.host = Placeholder(); + components_.host = Component(); + } + bool IsHostOverridden() const { return sources_.host != NULL; } + + // Port + void SetPort(const CHAR* s, const Component& comp) { + sources_.port = s; + components_.port = comp; + } + void ClearPort() { + sources_.port = Placeholder(); + components_.port = Component(); + } + bool IsPortOverridden() const { return sources_.port != NULL; } + + // Path + void SetPath(const CHAR* s, const Component& comp) { + sources_.path = s; + components_.path = comp; + } + void ClearPath() { + sources_.path = Placeholder(); + components_.path = Component(); + } + bool IsPathOverridden() const { return sources_.path != NULL; } + + // Query + void SetQuery(const CHAR* s, const Component& comp) { + sources_.query = s; + components_.query = comp; + } + void ClearQuery() { + sources_.query = Placeholder(); + components_.query = Component(); + } + bool IsQueryOverridden() const { return sources_.query != NULL; } + + // Ref + void SetRef(const CHAR* s, const Component& comp) { + sources_.ref = s; + components_.ref = comp; + } + void ClearRef() { + sources_.ref = Placeholder(); + components_.ref = Component(); + } + bool IsRefOverridden() const { return sources_.ref != NULL; } + + // Getters for the itnernal data. See the variables below for how the + // information is encoded. + const URLComponentSource<CHAR>& sources() const { return sources_; } + const Parsed& components() const { return components_; } + + private: + // Returns a pointer to a static empty string that is used as a placeholder + // to indicate a component should be deleted (see below). + const CHAR* Placeholder() { + static const CHAR empty_string = 0; + return &empty_string; + } + + // We support three states: + // + // Action | Source Component + // -----------------------+-------------------------------------------------- + // Don't change component | NULL (unused) + // Replace component | (replacement string) (replacement component) + // Delete component | (non-NULL) (invalid component: (0,-1)) + // + // We use a pointer to the empty string for the source when the component + // should be deleted. + URLComponentSource<CHAR> sources_; + Parsed components_; +}; + +// The base must be an 8-bit canonical URL. +URL_EXPORT bool ReplaceStandardURL(const char* base, + const Parsed& base_parsed, + const Replacements<char>& replacements, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed); +URL_EXPORT bool ReplaceStandardURL( + const char* base, + const Parsed& base_parsed, + const Replacements<base::char16>& replacements, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed); + +// Filesystem URLs can only have the path, query, or ref replaced. +// All other components will be ignored. +URL_EXPORT bool ReplaceFileSystemURL(const char* base, + const Parsed& base_parsed, + const Replacements<char>& replacements, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed); +URL_EXPORT bool ReplaceFileSystemURL( + const char* base, + const Parsed& base_parsed, + const Replacements<base::char16>& replacements, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed); + +// Replacing some parts of a file URL is not permitted. Everything except +// the host, path, query, and ref will be ignored. +URL_EXPORT bool ReplaceFileURL(const char* base, + const Parsed& base_parsed, + const Replacements<char>& replacements, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed); +URL_EXPORT bool ReplaceFileURL(const char* base, + const Parsed& base_parsed, + const Replacements<base::char16>& replacements, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed); + +// Path URLs can only have the scheme and path replaced. All other components +// will be ignored. +URL_EXPORT bool ReplacePathURL(const char* base, + const Parsed& base_parsed, + const Replacements<char>& replacements, + CanonOutput* output, + Parsed* new_parsed); +URL_EXPORT bool ReplacePathURL(const char* base, + const Parsed& base_parsed, + const Replacements<base::char16>& replacements, + CanonOutput* output, + Parsed* new_parsed); + +// Mailto URLs can only have the scheme, path, and query replaced. +// All other components will be ignored. +URL_EXPORT bool ReplaceMailtoURL(const char* base, + const Parsed& base_parsed, + const Replacements<char>& replacements, + CanonOutput* output, + Parsed* new_parsed); +URL_EXPORT bool ReplaceMailtoURL(const char* base, + const Parsed& base_parsed, + const Replacements<base::char16>& replacements, + CanonOutput* output, + Parsed* new_parsed); + +// Relative URL --------------------------------------------------------------- + +// Given an input URL or URL fragment |fragment|, determines if it is a +// relative or absolute URL and places the result into |*is_relative|. If it is +// relative, the relevant portion of the URL will be placed into +// |*relative_component| (there may have been trimmed whitespace, for example). +// This value is passed to ResolveRelativeURL. If the input is not relative, +// this value is UNDEFINED (it may be changed by the function). +// +// Returns true on success (we successfully determined the URL is relative or +// not). Failure means that the combination of URLs doesn't make any sense. +// +// The base URL should always be canonical, therefore is ASCII. +URL_EXPORT bool IsRelativeURL(const char* base, + const Parsed& base_parsed, + const char* fragment, + int fragment_len, + bool is_base_hierarchical, + bool* is_relative, + Component* relative_component); +URL_EXPORT bool IsRelativeURL(const char* base, + const Parsed& base_parsed, + const base::char16* fragment, + int fragment_len, + bool is_base_hierarchical, + bool* is_relative, + Component* relative_component); + +// Given a canonical parsed source URL, a URL fragment known to be relative, +// and the identified relevant portion of the relative URL (computed by +// IsRelativeURL), this produces a new parsed canonical URL in |output| and +// |out_parsed|. +// +// It also requires a flag indicating whether the base URL is a file: URL +// which triggers additional logic. +// +// The base URL should be canonical and have a host (may be empty for file +// URLs) and a path. If it doesn't have these, we can't resolve relative +// URLs off of it and will return the base as the output with an error flag. +// Becausee it is canonical is should also be ASCII. +// +// The query charset converter follows the same rules as CanonicalizeQuery. +// +// Returns true on success. On failure, the output will be "something +// reasonable" that will be consistent and valid, just probably not what +// was intended by the web page author or caller. +URL_EXPORT bool ResolveRelativeURL(const char* base_url, + const Parsed& base_parsed, + bool base_is_file, + const char* relative_url, + const Component& relative_component, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* out_parsed); +URL_EXPORT bool ResolveRelativeURL(const char* base_url, + const Parsed& base_parsed, + bool base_is_file, + const base::char16* relative_url, + const Component& relative_component, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* out_parsed); + +} // namespace url + +#endif // URL_URL_CANON_H_
diff --git a/url_canon_etc.cc b/url_canon_etc.cc new file mode 100644 index 0000000..7409efd --- /dev/null +++ b/url_canon_etc.cc
@@ -0,0 +1,367 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Canonicalizers for random bits that aren't big enough for their own files. + +#include <string.h> + +#include "url/url_canon.h" +#include "url/url_canon_internal.h" + +namespace url { + +namespace { + +// Returns true if the given character should be removed from the middle of a +// URL. +inline bool IsRemovableURLWhitespace(int ch) { + return ch == '\r' || ch == '\n' || ch == '\t'; +} + +// Backend for RemoveURLWhitespace (see declaration in url_canon.h). +// It sucks that we have to do this, since this takes about 13% of the total URL +// canonicalization time. +template<typename CHAR> +const CHAR* DoRemoveURLWhitespace(const CHAR* input, int input_len, + CanonOutputT<CHAR>* buffer, + int* output_len) { + // Fast verification that there's nothing that needs removal. This is the 99% + // case, so we want it to be fast and don't care about impacting the speed + // when we do find whitespace. + int found_whitespace = false; + for (int i = 0; i < input_len; i++) { + if (!IsRemovableURLWhitespace(input[i])) + continue; + found_whitespace = true; + break; + } + + if (!found_whitespace) { + // Didn't find any whitespace, we don't need to do anything. We can just + // return the input as the output. + *output_len = input_len; + return input; + } + + // Remove the whitespace into the new buffer and return it. + for (int i = 0; i < input_len; i++) { + if (!IsRemovableURLWhitespace(input[i])) + buffer->push_back(input[i]); + } + *output_len = buffer->length(); + return buffer->data(); +} + +// Contains the canonical version of each possible input letter in the scheme +// (basically, lower-cased). The corresponding entry will be 0 if the letter +// is not allowed in a scheme. +const char kSchemeCanonical[0x80] = { +// 00-1f: all are invalid + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +// ' ' ! " # $ % & ' ( ) * + , - . / + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '+', 0, '-', '.', 0, +// 0 1 2 3 4 5 6 7 8 9 : ; < = > ? + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 0 , 0 , 0 , 0 , 0 , 0 , +// @ A B C D E F G H I J K L M N O + 0 , 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', +// P Q R S T U V W X Y Z [ \ ] ^ _ + 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 0, 0 , 0, 0 , 0, +// ` a b c d e f g h i j k l m n o + 0 , 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', +// p q r s t u v w x y z { | } ~ + 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 0 , 0 , 0 , 0 , 0 }; + +// This could be a table lookup as well by setting the high bit for each +// valid character, but it's only called once per URL, and it makes the lookup +// table easier to read not having extra stuff in it. +inline bool IsSchemeFirstChar(unsigned char c) { + return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); +} + +template<typename CHAR, typename UCHAR> +bool DoScheme(const CHAR* spec, + const Component& scheme, + CanonOutput* output, + Component* out_scheme) { + if (scheme.len <= 0) { + // Scheme is unspecified or empty, convert to empty by appending a colon. + *out_scheme = Component(output->length(), 0); + output->push_back(':'); + return true; + } + + // The output scheme starts from the current position. + out_scheme->begin = output->length(); + + // Danger: it's important that this code does not strip any characters: it + // only emits the canonical version (be it valid or escaped) of each of + // the input characters. Stripping would put it out of sync with + // FindAndCompareScheme, which could cause some security checks on + // schemes to be incorrect. + bool success = true; + int end = scheme.end(); + for (int i = scheme.begin; i < end; i++) { + UCHAR ch = static_cast<UCHAR>(spec[i]); + char replacement = 0; + if (ch < 0x80) { + if (i == scheme.begin) { + // Need to do a special check for the first letter of the scheme. + if (IsSchemeFirstChar(static_cast<unsigned char>(ch))) + replacement = kSchemeCanonical[ch]; + } else { + replacement = kSchemeCanonical[ch]; + } + } + + if (replacement) { + output->push_back(replacement); + } else if (ch == '%') { + // Canonicalizing the scheme multiple times should lead to the same + // result. Since invalid characters will be escaped, we need to preserve + // the percent to avoid multiple escaping. The scheme will be invalid. + success = false; + output->push_back('%'); + } else { + // Invalid character, store it but mark this scheme as invalid. + success = false; + + // This will escape the output and also handle encoding issues. + // Ignore the return value since we already failed. + AppendUTF8EscapedChar(spec, &i, end, output); + } + } + + // The output scheme ends with the the current position, before appending + // the colon. + out_scheme->len = output->length() - out_scheme->begin; + output->push_back(':'); + return success; +} + +// The username and password components reference ranges in the corresponding +// *_spec strings. Typically, these specs will be the same (we're +// canonicalizing a single source string), but may be different when +// replacing components. +template<typename CHAR, typename UCHAR> +bool DoUserInfo(const CHAR* username_spec, + const Component& username, + const CHAR* password_spec, + const Component& password, + CanonOutput* output, + Component* out_username, + Component* out_password) { + if (username.len <= 0 && password.len <= 0) { + // Common case: no user info. We strip empty username/passwords. + *out_username = Component(); + *out_password = Component(); + return true; + } + + // Write the username. + out_username->begin = output->length(); + if (username.len > 0) { + // This will escape characters not valid for the username. + AppendStringOfType(&username_spec[username.begin], username.len, + CHAR_USERINFO, output); + } + out_username->len = output->length() - out_username->begin; + + // When there is a password, we need the separator. Note that we strip + // empty but specified passwords. + if (password.len > 0) { + output->push_back(':'); + out_password->begin = output->length(); + AppendStringOfType(&password_spec[password.begin], password.len, + CHAR_USERINFO, output); + out_password->len = output->length() - out_password->begin; + } else { + *out_password = Component(); + } + + output->push_back('@'); + return true; +} + +// Helper functions for converting port integers to strings. +inline void WritePortInt(char* output, int output_len, int port) { + _itoa_s(port, output, output_len, 10); +} + +// This function will prepend the colon if there will be a port. +template<typename CHAR, typename UCHAR> +bool DoPort(const CHAR* spec, + const Component& port, + int default_port_for_scheme, + CanonOutput* output, + Component* out_port) { + int port_num = ParsePort(spec, port); + if (port_num == PORT_UNSPECIFIED || port_num == default_port_for_scheme) { + *out_port = Component(); + return true; // Leave port empty. + } + + if (port_num == PORT_INVALID) { + // Invalid port: We'll copy the text from the input so the user can see + // what the error was, and mark the URL as invalid by returning false. + output->push_back(':'); + out_port->begin = output->length(); + AppendInvalidNarrowString(spec, port.begin, port.end(), output); + out_port->len = output->length() - out_port->begin; + return false; + } + + // Convert port number back to an integer. Max port value is 5 digits, and + // the Parsed::ExtractPort will have made sure the integer is in range. + const int buf_size = 6; + char buf[buf_size]; + WritePortInt(buf, buf_size, port_num); + + // Append the port number to the output, preceeded by a colon. + output->push_back(':'); + out_port->begin = output->length(); + for (int i = 0; i < buf_size && buf[i]; i++) + output->push_back(buf[i]); + + out_port->len = output->length() - out_port->begin; + return true; +} + +template<typename CHAR, typename UCHAR> +void DoCanonicalizeRef(const CHAR* spec, + const Component& ref, + CanonOutput* output, + Component* out_ref) { + if (ref.len < 0) { + // Common case of no ref. + *out_ref = Component(); + return; + } + + // Append the ref separator. Note that we need to do this even when the ref + // is empty but present. + output->push_back('#'); + out_ref->begin = output->length(); + + // Now iterate through all the characters, converting to UTF-8 and validating. + int end = ref.end(); + for (int i = ref.begin; i < end; i++) { + if (spec[i] == 0) { + // IE just strips NULLs, so we do too. + continue; + } else if (static_cast<UCHAR>(spec[i]) < 0x20) { + // Unline IE seems to, we escape control characters. This will probably + // make the reference fragment unusable on a web page, but people + // shouldn't be using control characters in their anchor names. + AppendEscapedChar(static_cast<unsigned char>(spec[i]), output); + } else if (static_cast<UCHAR>(spec[i]) < 0x80) { + // Normal ASCII characters are just appended. + output->push_back(static_cast<char>(spec[i])); + } else { + // Non-ASCII characters are appended unescaped, but only when they are + // valid. Invalid Unicode characters are replaced with the "invalid + // character" as IE seems to (ReadUTFChar puts the unicode replacement + // character in the output on failure for us). + unsigned code_point; + ReadUTFChar(spec, &i, end, &code_point); + AppendUTF8Value(code_point, output); + } + } + + out_ref->len = output->length() - out_ref->begin; +} + +} // namespace + +const char* RemoveURLWhitespace(const char* input, int input_len, + CanonOutputT<char>* buffer, + int* output_len) { + return DoRemoveURLWhitespace(input, input_len, buffer, output_len); +} + +const base::char16* RemoveURLWhitespace(const base::char16* input, + int input_len, + CanonOutputT<base::char16>* buffer, + int* output_len) { + return DoRemoveURLWhitespace(input, input_len, buffer, output_len); +} + +char CanonicalSchemeChar(base::char16 ch) { + if (ch >= 0x80) + return 0; // Non-ASCII is not supported by schemes. + return kSchemeCanonical[ch]; +} + +bool CanonicalizeScheme(const char* spec, + const Component& scheme, + CanonOutput* output, + Component* out_scheme) { + return DoScheme<char, unsigned char>(spec, scheme, output, out_scheme); +} + +bool CanonicalizeScheme(const base::char16* spec, + const Component& scheme, + CanonOutput* output, + Component* out_scheme) { + return DoScheme<base::char16, base::char16>(spec, scheme, output, out_scheme); +} + +bool CanonicalizeUserInfo(const char* username_source, + const Component& username, + const char* password_source, + const Component& password, + CanonOutput* output, + Component* out_username, + Component* out_password) { + return DoUserInfo<char, unsigned char>( + username_source, username, password_source, password, + output, out_username, out_password); +} + +bool CanonicalizeUserInfo(const base::char16* username_source, + const Component& username, + const base::char16* password_source, + const Component& password, + CanonOutput* output, + Component* out_username, + Component* out_password) { + return DoUserInfo<base::char16, base::char16>( + username_source, username, password_source, password, + output, out_username, out_password); +} + +bool CanonicalizePort(const char* spec, + const Component& port, + int default_port_for_scheme, + CanonOutput* output, + Component* out_port) { + return DoPort<char, unsigned char>(spec, port, + default_port_for_scheme, + output, out_port); +} + +bool CanonicalizePort(const base::char16* spec, + const Component& port, + int default_port_for_scheme, + CanonOutput* output, + Component* out_port) { + return DoPort<base::char16, base::char16>(spec, port, default_port_for_scheme, + output, out_port); +} + +void CanonicalizeRef(const char* spec, + const Component& ref, + CanonOutput* output, + Component* out_ref) { + DoCanonicalizeRef<char, unsigned char>(spec, ref, output, out_ref); +} + +void CanonicalizeRef(const base::char16* spec, + const Component& ref, + CanonOutput* output, + Component* out_ref) { + DoCanonicalizeRef<base::char16, base::char16>(spec, ref, output, out_ref); +} + +} // namespace url
diff --git a/url_canon_filesystemurl.cc b/url_canon_filesystemurl.cc new file mode 100644 index 0000000..18e9055 --- /dev/null +++ b/url_canon_filesystemurl.cc
@@ -0,0 +1,129 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Functions for canonicalizing "filesystem:file:" URLs. + +#include "url/url_canon.h" +#include "url/url_canon_internal.h" +#include "url/url_file.h" +#include "url/url_parse_internal.h" +#include "url/url_util.h" +#include "url/url_util_internal.h" + +namespace url { + +namespace { + +// We use the URLComponentSource for the outer URL, as it can have replacements, +// whereas the inner_url can't, so it uses spec. +template<typename CHAR, typename UCHAR> +bool DoCanonicalizeFileSystemURL(const CHAR* spec, + const URLComponentSource<CHAR>& source, + const Parsed& parsed, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* new_parsed) { + // filesystem only uses {scheme, path, query, ref} -- clear the rest. + new_parsed->username.reset(); + new_parsed->password.reset(); + new_parsed->host.reset(); + new_parsed->port.reset(); + + const Parsed* inner_parsed = parsed.inner_parsed(); + Parsed new_inner_parsed; + + // Scheme (known, so we don't bother running it through the more + // complicated scheme canonicalizer). + new_parsed->scheme.begin = output->length(); + output->Append("filesystem:", 11); + new_parsed->scheme.len = 10; + + if (!parsed.inner_parsed() || !parsed.inner_parsed()->scheme.is_valid()) + return false; + + bool success = true; + if (CompareSchemeComponent(spec, inner_parsed->scheme, url::kFileScheme)) { + new_inner_parsed.scheme.begin = output->length(); + output->Append("file://", 7); + new_inner_parsed.scheme.len = 4; + success &= CanonicalizePath(spec, inner_parsed->path, output, + &new_inner_parsed.path); + } else if (IsStandard(spec, inner_parsed->scheme)) { + success = CanonicalizeStandardURL(spec, parsed.inner_parsed()->Length(), + *parsed.inner_parsed(), charset_converter, + output, &new_inner_parsed); + } else { + // TODO(ericu): The URL is wrong, but should we try to output more of what + // we were given? Echoing back filesystem:mailto etc. doesn't seem all that + // useful. + return false; + } + // The filesystem type must be more than just a leading slash for validity. + success &= parsed.inner_parsed()->path.len > 1; + + success &= CanonicalizePath(source.path, parsed.path, output, + &new_parsed->path); + + // Ignore failures for query/ref since the URL can probably still be loaded. + CanonicalizeQuery(source.query, parsed.query, charset_converter, + output, &new_parsed->query); + CanonicalizeRef(source.ref, parsed.ref, output, &new_parsed->ref); + if (success) + new_parsed->set_inner_parsed(new_inner_parsed); + + return success; +} + +} // namespace + +bool CanonicalizeFileSystemURL(const char* spec, + int spec_len, + const Parsed& parsed, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* new_parsed) { + return DoCanonicalizeFileSystemURL<char, unsigned char>( + spec, URLComponentSource<char>(spec), parsed, charset_converter, output, + new_parsed); +} + +bool CanonicalizeFileSystemURL(const base::char16* spec, + int spec_len, + const Parsed& parsed, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* new_parsed) { + return DoCanonicalizeFileSystemURL<base::char16, base::char16>( + spec, URLComponentSource<base::char16>(spec), parsed, charset_converter, + output, new_parsed); +} + +bool ReplaceFileSystemURL(const char* base, + const Parsed& base_parsed, + const Replacements<char>& replacements, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* new_parsed) { + URLComponentSource<char> source(base); + Parsed parsed(base_parsed); + SetupOverrideComponents(base, replacements, &source, &parsed); + return DoCanonicalizeFileSystemURL<char, unsigned char>( + base, source, parsed, charset_converter, output, new_parsed); +} + +bool ReplaceFileSystemURL(const char* base, + const Parsed& base_parsed, + const Replacements<base::char16>& replacements, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* new_parsed) { + RawCanonOutput<1024> utf8; + URLComponentSource<char> source(base); + Parsed parsed(base_parsed); + SetupUTF16OverrideComponents(base, replacements, &utf8, &source, &parsed); + return DoCanonicalizeFileSystemURL<char, unsigned char>( + base, source, parsed, charset_converter, output, new_parsed); +} + +} // namespace url
diff --git a/url_canon_fileurl.cc b/url_canon_fileurl.cc new file mode 100644 index 0000000..1322be7 --- /dev/null +++ b/url_canon_fileurl.cc
@@ -0,0 +1,189 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Functions for canonicalizing "file:" URLs. + +#include "url/url_canon.h" +#include "url/url_canon_internal.h" +#include "url/url_file.h" +#include "url/url_parse_internal.h" + +namespace url { + +namespace { + +#ifdef WIN32 + +// Given a pointer into the spec, this copies and canonicalizes the drive +// letter and colon to the output, if one is found. If there is not a drive +// spec, it won't do anything. The index of the next character in the input +// spec is returned (after the colon when a drive spec is found, the begin +// offset if one is not). +template<typename CHAR> +int FileDoDriveSpec(const CHAR* spec, int begin, int end, + CanonOutput* output) { + // The path could be one of several things: /foo/bar, c:/foo/bar, /c:/foo, + // (with backslashes instead of slashes as well). + int num_slashes = CountConsecutiveSlashes(spec, begin, end); + int after_slashes = begin + num_slashes; + + if (!DoesBeginWindowsDriveSpec(spec, after_slashes, end)) + return begin; // Haven't consumed any characters + + // A drive spec is the start of a path, so we need to add a slash for the + // authority terminator (typically the third slash). + output->push_back('/'); + + // DoesBeginWindowsDriveSpec will ensure that the drive letter is valid + // and that it is followed by a colon/pipe. + + // Normalize Windows drive letters to uppercase + if (spec[after_slashes] >= 'a' && spec[after_slashes] <= 'z') + output->push_back(spec[after_slashes] - 'a' + 'A'); + else + output->push_back(static_cast<char>(spec[after_slashes])); + + // Normalize the character following it to a colon rather than pipe. + output->push_back(':'); + return after_slashes + 2; +} + +#endif // WIN32 + +template<typename CHAR, typename UCHAR> +bool DoFileCanonicalizePath(const CHAR* spec, + const Component& path, + CanonOutput* output, + Component* out_path) { + // Copies and normalizes the "c:" at the beginning, if present. + out_path->begin = output->length(); + int after_drive; +#ifdef WIN32 + after_drive = FileDoDriveSpec(spec, path.begin, path.end(), output); +#else + after_drive = path.begin; +#endif + + // Copies the rest of the path, starting from the slash following the + // drive colon (if any, Windows only), or the first slash of the path. + bool success = true; + if (after_drive < path.end()) { + // Use the regular path canonicalizer to canonicalize the rest of the + // path. Give it a fake output component to write into. DoCanonicalizeFile + // will compute the full path component. + Component sub_path = MakeRange(after_drive, path.end()); + Component fake_output_path; + success = CanonicalizePath(spec, sub_path, output, &fake_output_path); + } else { + // No input path, canonicalize to a slash. + output->push_back('/'); + } + + out_path->len = output->length() - out_path->begin; + return success; +} + +template<typename CHAR, typename UCHAR> +bool DoCanonicalizeFileURL(const URLComponentSource<CHAR>& source, + const Parsed& parsed, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed) { + // Things we don't set in file: URLs. + new_parsed->username = Component(); + new_parsed->password = Component(); + new_parsed->port = Component(); + + // Scheme (known, so we don't bother running it through the more + // complicated scheme canonicalizer). + new_parsed->scheme.begin = output->length(); + output->Append("file://", 7); + new_parsed->scheme.len = 4; + + // Append the host. For many file URLs, this will be empty. For UNC, this + // will be present. + // TODO(brettw) This doesn't do any checking for host name validity. We + // should probably handle validity checking of UNC hosts differently than + // for regular IP hosts. + bool success = CanonicalizeHost(source.host, parsed.host, + output, &new_parsed->host); + success &= DoFileCanonicalizePath<CHAR, UCHAR>(source.path, parsed.path, + output, &new_parsed->path); + CanonicalizeQuery(source.query, parsed.query, query_converter, + output, &new_parsed->query); + + // Ignore failure for refs since the URL can probably still be loaded. + CanonicalizeRef(source.ref, parsed.ref, output, &new_parsed->ref); + + return success; +} + +} // namespace + +bool CanonicalizeFileURL(const char* spec, + int spec_len, + const Parsed& parsed, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed) { + return DoCanonicalizeFileURL<char, unsigned char>( + URLComponentSource<char>(spec), parsed, query_converter, + output, new_parsed); +} + +bool CanonicalizeFileURL(const base::char16* spec, + int spec_len, + const Parsed& parsed, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed) { + return DoCanonicalizeFileURL<base::char16, base::char16>( + URLComponentSource<base::char16>(spec), parsed, query_converter, + output, new_parsed); +} + +bool FileCanonicalizePath(const char* spec, + const Component& path, + CanonOutput* output, + Component* out_path) { + return DoFileCanonicalizePath<char, unsigned char>(spec, path, + output, out_path); +} + +bool FileCanonicalizePath(const base::char16* spec, + const Component& path, + CanonOutput* output, + Component* out_path) { + return DoFileCanonicalizePath<base::char16, base::char16>(spec, path, + output, out_path); +} + +bool ReplaceFileURL(const char* base, + const Parsed& base_parsed, + const Replacements<char>& replacements, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed) { + URLComponentSource<char> source(base); + Parsed parsed(base_parsed); + SetupOverrideComponents(base, replacements, &source, &parsed); + return DoCanonicalizeFileURL<char, unsigned char>( + source, parsed, query_converter, output, new_parsed); +} + +bool ReplaceFileURL(const char* base, + const Parsed& base_parsed, + const Replacements<base::char16>& replacements, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed) { + RawCanonOutput<1024> utf8; + URLComponentSource<char> source(base); + Parsed parsed(base_parsed); + SetupUTF16OverrideComponents(base, replacements, &utf8, &source, &parsed); + return DoCanonicalizeFileURL<char, unsigned char>( + source, parsed, query_converter, output, new_parsed); +} + +} // namespace url
diff --git a/url_canon_host.cc b/url_canon_host.cc new file mode 100644 index 0000000..513248a --- /dev/null +++ b/url_canon_host.cc
@@ -0,0 +1,378 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "base/logging.h" +#include "url/url_canon.h" +#include "url/url_canon_internal.h" + +namespace url { + +namespace { + +// For reference, here's what IE supports: +// Key: 0 (disallowed: failure if present in the input) +// + (allowed either escaped or unescaped, and unmodified) +// U (allowed escaped or unescaped but always unescaped if present in +// escaped form) +// E (allowed escaped or unescaped but always escaped if present in +// unescaped form) +// % (only allowed escaped in the input, will be unmodified). +// I left blank alpha numeric characters. +// +// 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f +// ----------------------------------------------- +// 0 0 E E E E E E E E E E E E E E E +// 1 E E E E E E E E E E E E E E E E +// 2 E + E E + E + + + + + + + U U 0 +// 3 % % E + E 0 <-- Those are : ; < = > ? +// 4 % +// 5 U 0 U U U <-- Those are [ \ ] ^ _ +// 6 E <-- That's ` +// 7 E E E U E <-- Those are { | } ~ (UNPRINTABLE) +// +// NOTE: I didn't actually test all the control characters. Some may be +// disallowed in the input, but they are all accepted escaped except for 0. +// I also didn't test if characters affecting HTML parsing are allowed +// unescaped, eg. (") or (#), which would indicate the beginning of the path. +// Surprisingly, space is accepted in the input and always escaped. + +// This table lists the canonical version of all characters we allow in the +// input, with 0 indicating it is disallowed. We use the magic kEscapedHostChar +// value to indicate that this character should be escaped. We are a little more +// restrictive than IE, but less restrictive than Firefox. +// +// Note that we disallow the % character. We will allow it when part of an +// escape sequence, of course, but this disallows "%25". Even though IE allows +// it, allowing it would put us in a funny state. If there was an invalid +// escape sequence like "%zz", we'll add "%25zz" to the output and fail. +// Allowing percents means we'll succeed a second time, so validity would change +// based on how many times you run the canonicalizer. We prefer to always report +// the same vailidity, so reject this. +const unsigned char kEsc = 0xff; +const unsigned char kHostCharLookup[0x80] = { +// 00-1f: all are invalid + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +// ' ' ! " # $ % & ' ( ) * + , - . / + kEsc,kEsc,kEsc,kEsc,kEsc, 0, kEsc,kEsc,kEsc,kEsc,kEsc, '+',kEsc, '-', '.', 0, +// 0 1 2 3 4 5 6 7 8 9 : ; < = > ? + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', 0 ,kEsc,kEsc,kEsc, 0 , +// @ A B C D E F G H I J K L M N O + kEsc, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', +// P Q R S T U V W X Y Z [ \ ] ^ _ + 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '[', 0 , ']', 0 , '_', +// ` a b c d e f g h i j k l m n o + kEsc, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', +// p q r s t u v w x y z { | } ~ + 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',kEsc,kEsc,kEsc, 0 , 0 }; + +const int kTempHostBufferLen = 1024; +typedef RawCanonOutputT<char, kTempHostBufferLen> StackBuffer; +typedef RawCanonOutputT<base::char16, kTempHostBufferLen> StackBufferW; + +// Scans a host name and fills in the output flags according to what we find. +// |has_non_ascii| will be true if there are any non-7-bit characters, and +// |has_escaped| will be true if there is a percent sign. +template<typename CHAR, typename UCHAR> +void ScanHostname(const CHAR* spec, + const Component& host, + bool* has_non_ascii, + bool* has_escaped) { + int end = host.end(); + *has_non_ascii = false; + *has_escaped = false; + for (int i = host.begin; i < end; i++) { + if (static_cast<UCHAR>(spec[i]) >= 0x80) + *has_non_ascii = true; + else if (spec[i] == '%') + *has_escaped = true; + } +} + +// Canonicalizes a host name that is entirely 8-bit characters (even though +// the type holding them may be 16 bits. Escaped characters will be unescaped. +// Non-7-bit characters (for example, UTF-8) will be passed unchanged. +// +// The |*has_non_ascii| flag will be true if there are non-7-bit characters in +// the output. +// +// This function is used in two situations: +// +// * When the caller knows there is no non-ASCII or percent escaped +// characters. This is what DoHost does. The result will be a completely +// canonicalized host since we know nothing weird can happen (escaped +// characters could be unescaped to non-7-bit, so they have to be treated +// with suspicion at this point). It does not use the |has_non_ascii| flag. +// +// * When the caller has an 8-bit string that may need unescaping. +// DoComplexHost calls us this situation to do unescaping and validation. +// After this, it may do other IDN operations depending on the value of the +// |*has_non_ascii| flag. +// +// The return value indicates if the output is a potentially valid host name. +template<typename INCHAR, typename OUTCHAR> +bool DoSimpleHost(const INCHAR* host, + int host_len, + CanonOutputT<OUTCHAR>* output, + bool* has_non_ascii) { + *has_non_ascii = false; + + bool success = true; + for (int i = 0; i < host_len; ++i) { + unsigned int source = host[i]; + if (source == '%') { + // Unescape first, if possible. + // Source will be used only if decode operation was successful. + if (!DecodeEscaped(host, &i, host_len, + reinterpret_cast<unsigned char*>(&source))) { + // Invalid escaped character. There is nothing that can make this + // host valid. We append an escaped percent so the URL looks reasonable + // and mark as failed. + AppendEscapedChar('%', output); + success = false; + continue; + } + } + + if (source < 0x80) { + // We have ASCII input, we can use our lookup table. + unsigned char replacement = kHostCharLookup[source]; + if (!replacement) { + // Invalid character, add it as percent-escaped and mark as failed. + AppendEscapedChar(source, output); + success = false; + } else if (replacement == kEsc) { + // This character is valid but should be escaped. + AppendEscapedChar(source, output); + } else { + // Common case, the given character is valid in a hostname, the lookup + // table tells us the canonical representation of that character (lower + // cased). + output->push_back(replacement); + } + } else { + // It's a non-ascii char. Just push it to the output. + // In case where we have char16 input, and char output it's safe to + // cast char16->char only if input string was converted to ASCII. + output->push_back(static_cast<OUTCHAR>(source)); + *has_non_ascii = true; + } + } + + return success; +} + +// Canonicalizes a host that requires IDN conversion. Returns true on success +bool DoIDNHost(const base::char16* src, int src_len, CanonOutput* output) { + // We need to escape URL before doing IDN conversion, since punicode strings + // cannot be escaped after they are created. + RawCanonOutputW<kTempHostBufferLen> url_escaped_host; + bool has_non_ascii; + DoSimpleHost(src, src_len, &url_escaped_host, &has_non_ascii); + + StackBufferW wide_output; + if (!IDNToASCII(url_escaped_host.data(), + url_escaped_host.length(), + &wide_output)) { + // Some error, give up. This will write some reasonable looking + // representation of the string to the output. + AppendInvalidNarrowString(src, 0, src_len, output); + return false; + } + + // Now we check the ASCII output like a normal host. It will also handle + // unescaping. Although we unescaped everything before this function call, if + // somebody does %00 as fullwidth, ICU will convert this to ASCII. + bool success = DoSimpleHost(wide_output.data(), + wide_output.length(), + output, &has_non_ascii); + DCHECK(!has_non_ascii); + return success; +} + +// 8-bit convert host to its ASCII version: this converts the UTF-8 input to +// UTF-16. The has_escaped flag should be set if the input string requires +// unescaping. +bool DoComplexHost(const char* host, int host_len, + bool has_non_ascii, bool has_escaped, CanonOutput* output) { + // Save the current position in the output. We may write stuff and rewind it + // below, so we need to know where to rewind to. + int begin_length = output->length(); + + // Points to the UTF-8 data we want to convert. This will either be the + // input or the unescaped version written to |*output| if necessary. + const char* utf8_source; + int utf8_source_len; + if (has_escaped) { + // Unescape before converting to UTF-16 for IDN. We write this into the + // output because it most likely does not require IDNization, and we can + // save another huge stack buffer. It will be replaced below if it requires + // IDN. This will also update our non-ASCII flag so we know whether the + // unescaped input requires IDN. + if (!DoSimpleHost(host, host_len, output, &has_non_ascii)) { + // Error with some escape sequence. We'll call the current output + // complete. DoSimpleHost will have written some "reasonable" output. + return false; + } + + // Unescaping may have left us with ASCII input, in which case the + // unescaped version we wrote to output is complete. + if (!has_non_ascii) { + return true; + } + + // Save the pointer into the data was just converted (it may be appended to + // other data in the output buffer). + utf8_source = &output->data()[begin_length]; + utf8_source_len = output->length() - begin_length; + } else { + // We don't need to unescape, use input for IDNization later. (We know the + // input has non-ASCII, or the simple version would have been called + // instead of us.) + utf8_source = host; + utf8_source_len = host_len; + } + + // Non-ASCII input requires IDN, convert to UTF-16 and do the IDN conversion. + // Above, we may have used the output to write the unescaped values to, so + // we have to rewind it to where we started after we convert it to UTF-16. + StackBufferW utf16; + if (!ConvertUTF8ToUTF16(utf8_source, utf8_source_len, &utf16)) { + // In this error case, the input may or may not be the output. + StackBuffer utf8; + for (int i = 0; i < utf8_source_len; i++) + utf8.push_back(utf8_source[i]); + output->set_length(begin_length); + AppendInvalidNarrowString(utf8.data(), 0, utf8.length(), output); + return false; + } + output->set_length(begin_length); + + // This will call DoSimpleHost which will do normal ASCII canonicalization + // and also check for IP addresses in the outpt. + return DoIDNHost(utf16.data(), utf16.length(), output); +} + +// UTF-16 convert host to its ASCII version. The set up is already ready for +// the backend, so we just pass through. The has_escaped flag should be set if +// the input string requires unescaping. +bool DoComplexHost(const base::char16* host, int host_len, + bool has_non_ascii, bool has_escaped, CanonOutput* output) { + if (has_escaped) { + // Yikes, we have escaped characters with wide input. The escaped + // characters should be interpreted as UTF-8. To solve this problem, + // we convert to UTF-8, unescape, then convert back to UTF-16 for IDN. + // + // We don't bother to optimize the conversion in the ASCII case (which + // *could* just be a copy) and use the UTF-8 path, because it should be + // very rare that host names have escaped characters, and it is relatively + // fast to do the conversion anyway. + StackBuffer utf8; + if (!ConvertUTF16ToUTF8(host, host_len, &utf8)) { + AppendInvalidNarrowString(host, 0, host_len, output); + return false; + } + + // Once we convert to UTF-8, we can use the 8-bit version of the complex + // host handling code above. + return DoComplexHost(utf8.data(), utf8.length(), has_non_ascii, + has_escaped, output); + } + + // No unescaping necessary, we can safely pass the input to ICU. This + // function will only get called if we either have escaped or non-ascii + // input, so it's safe to just use ICU now. Even if the input is ASCII, + // this function will do the right thing (just slower than we could). + return DoIDNHost(host, host_len, output); +} + +template<typename CHAR, typename UCHAR> +void DoHost(const CHAR* spec, + const Component& host, + CanonOutput* output, + CanonHostInfo* host_info) { + if (host.len <= 0) { + // Empty hosts don't need anything. + host_info->family = CanonHostInfo::NEUTRAL; + host_info->out_host = Component(); + return; + } + + bool has_non_ascii, has_escaped; + ScanHostname<CHAR, UCHAR>(spec, host, &has_non_ascii, &has_escaped); + + // Keep track of output's initial length, so we can rewind later. + const int output_begin = output->length(); + + bool success; + if (!has_non_ascii && !has_escaped) { + success = DoSimpleHost(&spec[host.begin], host.len, + output, &has_non_ascii); + DCHECK(!has_non_ascii); + } else { + success = DoComplexHost(&spec[host.begin], host.len, + has_non_ascii, has_escaped, output); + } + + if (!success) { + // Canonicalization failed. Set BROKEN to notify the caller. + host_info->family = CanonHostInfo::BROKEN; + } else { + // After all the other canonicalization, check if we ended up with an IP + // address. IP addresses are small, so writing into this temporary buffer + // should not cause an allocation. + RawCanonOutput<64> canon_ip; + CanonicalizeIPAddress(output->data(), + MakeRange(output_begin, output->length()), + &canon_ip, host_info); + + // If we got an IPv4/IPv6 address, copy the canonical form back to the + // real buffer. Otherwise, it's a hostname or broken IP, in which case + // we just leave it in place. + if (host_info->IsIPAddress()) { + output->set_length(output_begin); + output->Append(canon_ip.data(), canon_ip.length()); + } + } + + host_info->out_host = MakeRange(output_begin, output->length()); +} + +} // namespace + +bool CanonicalizeHost(const char* spec, + const Component& host, + CanonOutput* output, + Component* out_host) { + CanonHostInfo host_info; + DoHost<char, unsigned char>(spec, host, output, &host_info); + *out_host = host_info.out_host; + return (host_info.family != CanonHostInfo::BROKEN); +} + +bool CanonicalizeHost(const base::char16* spec, + const Component& host, + CanonOutput* output, + Component* out_host) { + CanonHostInfo host_info; + DoHost<base::char16, base::char16>(spec, host, output, &host_info); + *out_host = host_info.out_host; + return (host_info.family != CanonHostInfo::BROKEN); +} + +void CanonicalizeHostVerbose(const char* spec, + const Component& host, + CanonOutput* output, + CanonHostInfo* host_info) { + DoHost<char, unsigned char>(spec, host, output, host_info); +} + +void CanonicalizeHostVerbose(const base::char16* spec, + const Component& host, + CanonOutput* output, + CanonHostInfo* host_info) { + DoHost<base::char16, base::char16>(spec, host, output, host_info); +} + +} // namespace url
diff --git a/url_canon_icu.cc b/url_canon_icu.cc new file mode 100644 index 0000000..741bed2 --- /dev/null +++ b/url_canon_icu.cc
@@ -0,0 +1,187 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// ICU integration functions. + +#include <stdlib.h> +#include <string.h> + +#include "base/lazy_instance.h" +#include "base/logging.h" +#include "third_party/icu/source/common/unicode/ucnv.h" +#include "third_party/icu/source/common/unicode/ucnv_cb.h" +#include "third_party/icu/source/common/unicode/uidna.h" +#include "url/url_canon_icu.h" +#include "url/url_canon_internal.h" // for _itoa_s + +namespace url { + +namespace { + +// Called when converting a character that can not be represented, this will +// append an escaped version of the numerical character reference for that code +// point. It is of the form "Ӓ" and we will escape the non-digits to +// "%26%231234%3B". Why? This is what Netscape did back in the olden days. +void appendURLEscapedChar(const void* context, + UConverterFromUnicodeArgs* from_args, + const UChar* code_units, + int32_t length, + UChar32 code_point, + UConverterCallbackReason reason, + UErrorCode* err) { + if (reason == UCNV_UNASSIGNED) { + *err = U_ZERO_ERROR; + + const static int prefix_len = 6; + const static char prefix[prefix_len + 1] = "%26%23"; // "&#" percent-escaped + ucnv_cbFromUWriteBytes(from_args, prefix, prefix_len, 0, err); + + DCHECK(code_point < 0x110000); + char number[8]; // Max Unicode code point is 7 digits. + _itoa_s(code_point, number, 10); + int number_len = static_cast<int>(strlen(number)); + ucnv_cbFromUWriteBytes(from_args, number, number_len, 0, err); + + const static int postfix_len = 3; + const static char postfix[postfix_len + 1] = "%3B"; // ";" percent-escaped + ucnv_cbFromUWriteBytes(from_args, postfix, postfix_len, 0, err); + } +} + +// A class for scoping the installation of the invalid character callback. +class AppendHandlerInstaller { + public: + // The owner of this object must ensure that the converter is alive for the + // duration of this object's lifetime. + AppendHandlerInstaller(UConverter* converter) : converter_(converter) { + UErrorCode err = U_ZERO_ERROR; + ucnv_setFromUCallBack(converter_, appendURLEscapedChar, 0, + &old_callback_, &old_context_, &err); + } + + ~AppendHandlerInstaller() { + UErrorCode err = U_ZERO_ERROR; + ucnv_setFromUCallBack(converter_, old_callback_, old_context_, 0, 0, &err); + } + + private: + UConverter* converter_; + + UConverterFromUCallback old_callback_; + const void* old_context_; +}; + +// A wrapper to use LazyInstance<>::Leaky with ICU's UIDNA, a C pointer to +// a UTS46/IDNA 2008 handling object opened with uidna_openUTS46(). +// +// We use UTS46 with BiDiCheck to migrate from IDNA 2003 (with unassigned +// code points allowed) to IDNA 2008 with +// the backward compatibility in mind. What it does: +// +// 1. Use the up-to-date Unicode data. +// 2. Define a case folding/mapping with the up-to-date Unicode data as +// in IDNA 2003. +// 3. Use transitional mechanism for 4 deviation characters (sharp-s, +// final sigma, ZWJ and ZWNJ) for now. +// 4. Continue to allow symbols and punctuations. +// 5. Apply new BiDi check rules more permissive than the IDNA 2003 BiDI rules. +// 6. Do not apply STD3 rules +// 7. Do not allow unassigned code points. +// +// It also closely matches what IE 10 does except for the BiDi check ( +// http://goo.gl/3XBhqw ). +// See http://http://unicode.org/reports/tr46/ and references therein +// for more details. +struct UIDNAWrapper { + UIDNAWrapper() { + UErrorCode err = U_ZERO_ERROR; + // TODO(jungshik): Change options as different parties (browsers, + // registrars, search engines) converge toward a consensus. + value = uidna_openUTS46(UIDNA_CHECK_BIDI, &err); + if (U_FAILURE(err)) + value = NULL; + } + + UIDNA* value; +}; + +} // namespace + +ICUCharsetConverter::ICUCharsetConverter(UConverter* converter) + : converter_(converter) { +} + +ICUCharsetConverter::~ICUCharsetConverter() { +} + +void ICUCharsetConverter::ConvertFromUTF16(const base::char16* input, + int input_len, + CanonOutput* output) { + // Install our error handler. It will be called for character that can not + // be represented in the destination character set. + AppendHandlerInstaller handler(converter_); + + int begin_offset = output->length(); + int dest_capacity = output->capacity() - begin_offset; + output->set_length(output->length()); + + do { + UErrorCode err = U_ZERO_ERROR; + char* dest = &output->data()[begin_offset]; + int required_capacity = ucnv_fromUChars(converter_, dest, dest_capacity, + input, input_len, &err); + if (err != U_BUFFER_OVERFLOW_ERROR) { + output->set_length(begin_offset + required_capacity); + return; + } + + // Output didn't fit, expand + dest_capacity = required_capacity; + output->Resize(begin_offset + dest_capacity); + } while (true); +} + +static base::LazyInstance<UIDNAWrapper>::Leaky + g_uidna = LAZY_INSTANCE_INITIALIZER; + +// Converts the Unicode input representing a hostname to ASCII using IDN rules. +// The output must be ASCII, but is represented as wide characters. +// +// On success, the output will be filled with the ASCII host name and it will +// return true. Unlike most other canonicalization functions, this assumes that +// the output is empty. The beginning of the host will be at offset 0, and +// the length of the output will be set to the length of the new host name. +// +// On error, this will return false. The output in this case is undefined. +// TODO(jungshik): use UTF-8/ASCII version of nameToASCII. +// Change the function signature and callers accordingly to avoid unnecessary +// conversions in our code. In addition, consider using icu::IDNA's UTF-8/ASCII +// version with StringByteSink. That way, we can avoid C wrappers and additional +// string conversion. +bool IDNToASCII(const base::char16* src, int src_len, CanonOutputW* output) { + DCHECK(output->length() == 0); // Output buffer is assumed empty. + + UIDNA* uidna = g_uidna.Get().value; + DCHECK(uidna != NULL); + while (true) { + UErrorCode err = U_ZERO_ERROR; + UIDNAInfo info = UIDNA_INFO_INITIALIZER; + int output_length = uidna_nameToASCII(uidna, src, src_len, output->data(), + output->capacity(), &info, &err); + if (U_SUCCESS(err) && info.errors == 0) { + output->set_length(output_length); + return true; + } + + // TODO(jungshik): Look at info.errors to handle them case-by-case basis + // if necessary. + if (err != U_BUFFER_OVERFLOW_ERROR || info.errors != 0) + return false; // Unknown error, give up. + + // Not enough room in our buffer, expand. + output->Resize(output_length); + } +} + +} // namespace url
diff --git a/url_canon_icu.h b/url_canon_icu.h new file mode 100644 index 0000000..c963289 --- /dev/null +++ b/url_canon_icu.h
@@ -0,0 +1,40 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_CANON_ICU_H_ +#define URL_URL_CANON_ICU_H_ + +// ICU integration functions. + +#include "base/compiler_specific.h" +#include "url/url_canon.h" +#include "url/url_export.h" + +typedef struct UConverter UConverter; + +namespace url { + +// An implementation of CharsetConverter that implementations can use to +// interface the canonicalizer with ICU's conversion routines. +class URL_EXPORT ICUCharsetConverter : public CharsetConverter { + public: + // Constructs a converter using an already-existing ICU character set + // converter. This converter is NOT owned by this object; the lifetime must + // be managed by the creator such that it is alive as long as this is. + ICUCharsetConverter(UConverter* converter); + + virtual ~ICUCharsetConverter(); + + virtual void ConvertFromUTF16(const base::char16* input, + int input_len, + CanonOutput* output) OVERRIDE; + + private: + // The ICU converter, not owned by this class. + UConverter* converter_; +}; + +} // namespace url + +#endif // URL_URL_CANON_ICU_H_
diff --git a/url_canon_icu_alternatives_android.cc b/url_canon_icu_alternatives_android.cc new file mode 100644 index 0000000..f43efce --- /dev/null +++ b/url_canon_icu_alternatives_android.cc
@@ -0,0 +1,41 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include <string.h> + +#include "base/android/jni_android.h" +#include "base/android/jni_string.h" +#include "base/strings/string16.h" +#include "base/strings/string_piece.h" +#include "jni/IDNStringUtil_jni.h" +#include "url/url_canon_internal.h" + +namespace url { + +// This uses the JDK's conversion function, which uses IDNA 2003, unlike the +// ICU implementation. +bool IDNToASCII(const base::char16* src, int src_len, CanonOutputW* output) { + DCHECK_EQ(0, output->length()); // Output buffer is assumed empty. + + JNIEnv* env = base::android::AttachCurrentThread(); + base::android::ScopedJavaLocalRef<jstring> java_src = + base::android::ConvertUTF16ToJavaString( + env, base::StringPiece16(src, src_len)); + ScopedJavaLocalRef<jstring> java_result = + android::Java_IDNStringUtil_idnToASCII(env, java_src.obj()); + // NULL indicates failure. + if (java_result.is_null()) + return false; + + base::string16 utf16_result = + base::android::ConvertJavaStringToUTF16(java_result); + output->Append(utf16_result.data(), static_cast<int>(utf16_result.size())); + return true; +} + +bool RegisterIcuAlternativesJni(JNIEnv* env) { + return android::RegisterNativesImpl(env); +} + +} // namespace url
diff --git a/url_canon_icu_alternatives_android.h b/url_canon_icu_alternatives_android.h new file mode 100644 index 0000000..67306db --- /dev/null +++ b/url_canon_icu_alternatives_android.h
@@ -0,0 +1,18 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_CANON_ICU_ALTERNATIVES_ANDROID_H_ +#define URL_URL_CANON_ICU_ALTERNATIVES_ANDROID_H_ + +#include <jni.h> + +namespace url { + +// Explicitly register static JNI functions needed when not using ICU. +bool RegisterIcuAlternativesJni(JNIEnv* env); + +} // namespace url + +#endif // URL_URL_CANON_ICU_ALTERNATIVES_ANDROID_H_ +
diff --git a/url_canon_icu_unittest.cc b/url_canon_icu_unittest.cc new file mode 100644 index 0000000..b28c30a --- /dev/null +++ b/url_canon_icu_unittest.cc
@@ -0,0 +1,167 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "base/macros.h" +#include "testing/gtest/include/gtest/gtest.h" +#include "third_party/icu/source/common/unicode/ucnv.h" +#include "url/url_canon.h" +#include "url/url_canon_icu.h" +#include "url/url_canon_stdstring.h" +#include "url/url_test_utils.h" + +// Some implementations of base/basictypes.h may define ARRAYSIZE. +// If it's not defined, we define it to the ARRAYSIZE_UNSAFE macro +// which is in our version of basictypes.h. +#ifndef ARRAYSIZE +#define ARRAYSIZE ARRAYSIZE_UNSAFE +#endif + +namespace url { + +using test_utils::WStringToUTF16; + +namespace { + +// Wrapper around a UConverter object that managers creation and destruction. +class UConvScoper { + public: + explicit UConvScoper(const char* charset_name) { + UErrorCode err = U_ZERO_ERROR; + converter_ = ucnv_open(charset_name, &err); + } + + ~UConvScoper() { + if (converter_) + ucnv_close(converter_); + } + + // Returns the converter object, may be NULL. + UConverter* converter() const { return converter_; } + + private: + UConverter* converter_; +}; + +TEST(URLCanonIcuTest, ICUCharsetConverter) { + struct ICUCase { + const wchar_t* input; + const char* encoding; + const char* expected; + } icu_cases[] = { + // UTF-8. + {L"Hello, world", "utf-8", "Hello, world"}, + {L"\x4f60\x597d", "utf-8", "\xe4\xbd\xa0\xe5\xa5\xbd"}, + // Non-BMP UTF-8. + {L"!\xd800\xdf00!", "utf-8", "!\xf0\x90\x8c\x80!"}, + // Big5 + {L"\x4f60\x597d", "big5", "\xa7\x41\xa6\x6e"}, + // Unrepresentable character in the destination set. + {L"hello\x4f60\x06de\x597dworld", "big5", + "hello\xa7\x41%26%231758%3B\xa6\x6eworld"}, + }; + + for (size_t i = 0; i < ARRAYSIZE(icu_cases); i++) { + UConvScoper conv(icu_cases[i].encoding); + ASSERT_TRUE(conv.converter() != NULL); + ICUCharsetConverter converter(conv.converter()); + + std::string str; + StdStringCanonOutput output(&str); + + base::string16 input_str(WStringToUTF16(icu_cases[i].input)); + int input_len = static_cast<int>(input_str.length()); + converter.ConvertFromUTF16(input_str.c_str(), input_len, &output); + output.Complete(); + + EXPECT_STREQ(icu_cases[i].expected, str.c_str()); + } + + // Test string sizes around the resize boundary for the output to make sure + // the converter resizes as needed. + const int static_size = 16; + UConvScoper conv("utf-8"); + ASSERT_TRUE(conv.converter()); + ICUCharsetConverter converter(conv.converter()); + for (int i = static_size - 2; i <= static_size + 2; i++) { + // Make a string with the appropriate length. + base::string16 input; + for (int ch = 0; ch < i; ch++) + input.push_back('a'); + + RawCanonOutput<static_size> output; + converter.ConvertFromUTF16(input.c_str(), static_cast<int>(input.length()), + &output); + EXPECT_EQ(input.length(), static_cast<size_t>(output.length())); + } +} + +TEST(URLCanonIcuTest, QueryWithConverter) { + struct QueryCase { + const char* input8; + const wchar_t* input16; + const char* encoding; + const char* expected; + } query_cases[] = { + // Regular ASCII case in some different encodings. + {"foo=bar", L"foo=bar", "utf-8", "?foo=bar"}, + {"foo=bar", L"foo=bar", "shift_jis", "?foo=bar"}, + {"foo=bar", L"foo=bar", "gb2312", "?foo=bar"}, + // Chinese input/output + {"q=\xe4\xbd\xa0\xe5\xa5\xbd", L"q=\x4f60\x597d", "gb2312", + "?q=%C4%E3%BA%C3"}, + {"q=\xe4\xbd\xa0\xe5\xa5\xbd", L"q=\x4f60\x597d", "big5", "?q=%A7A%A6n"}, + // Unencodable character in the destination character set should be + // escaped. The escape sequence unescapes to be the entity name: + // "?q=你" + {"q=Chinese\xef\xbc\xa7", L"q=Chinese\xff27", "iso-8859-1", + "?q=Chinese%26%2365319%3B"}, + }; + + for (size_t i = 0; i < ARRAYSIZE(query_cases); i++) { + Component out_comp; + + UConvScoper conv(query_cases[i].encoding); + ASSERT_TRUE(!query_cases[i].encoding || conv.converter()); + ICUCharsetConverter converter(conv.converter()); + + if (query_cases[i].input8) { + int len = static_cast<int>(strlen(query_cases[i].input8)); + Component in_comp(0, len); + std::string out_str; + + StdStringCanonOutput output(&out_str); + CanonicalizeQuery(query_cases[i].input8, in_comp, &converter, &output, + &out_comp); + output.Complete(); + + EXPECT_EQ(query_cases[i].expected, out_str); + } + + if (query_cases[i].input16) { + base::string16 input16(WStringToUTF16(query_cases[i].input16)); + int len = static_cast<int>(input16.length()); + Component in_comp(0, len); + std::string out_str; + + StdStringCanonOutput output(&out_str); + CanonicalizeQuery(input16.c_str(), in_comp, &converter, &output, + &out_comp); + output.Complete(); + + EXPECT_EQ(query_cases[i].expected, out_str); + } + } + + // Extra test for input with embedded NULL; + std::string out_str; + StdStringCanonOutput output(&out_str); + Component out_comp; + CanonicalizeQuery("a \x00z\x01", Component(0, 5), NULL, &output, &out_comp); + output.Complete(); + EXPECT_EQ("?a%20%00z%01", out_str); +} + +} // namespace + +} // namespace url
diff --git a/url_canon_internal.cc b/url_canon_internal.cc new file mode 100644 index 0000000..1554814 --- /dev/null +++ b/url_canon_internal.cc
@@ -0,0 +1,432 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "url/url_canon_internal.h" + +#include <errno.h> +#include <stdlib.h> + +#include <cstdio> +#include <string> + +#include "base/strings/utf_string_conversion_utils.h" + +namespace url { + +namespace { + +template<typename CHAR, typename UCHAR> +void DoAppendStringOfType(const CHAR* source, int length, + SharedCharTypes type, + CanonOutput* output) { + for (int i = 0; i < length; i++) { + if (static_cast<UCHAR>(source[i]) >= 0x80) { + // ReadChar will fill the code point with kUnicodeReplacementCharacter + // when the input is invalid, which is what we want. + unsigned code_point; + ReadUTFChar(source, &i, length, &code_point); + AppendUTF8EscapedValue(code_point, output); + } else { + // Just append the 7-bit character, possibly escaping it. + unsigned char uch = static_cast<unsigned char>(source[i]); + if (!IsCharOfType(uch, type)) + AppendEscapedChar(uch, output); + else + output->push_back(uch); + } + } +} + +// This function assumes the input values are all contained in 8-bit, +// although it allows any type. Returns true if input is valid, false if not. +template<typename CHAR, typename UCHAR> +void DoAppendInvalidNarrowString(const CHAR* spec, int begin, int end, + CanonOutput* output) { + for (int i = begin; i < end; i++) { + UCHAR uch = static_cast<UCHAR>(spec[i]); + if (uch >= 0x80) { + // Handle UTF-8/16 encodings. This call will correctly handle the error + // case by appending the invalid character. + AppendUTF8EscapedChar(spec, &i, end, output); + } else if (uch <= ' ' || uch == 0x7f) { + // This function is for error handling, so we escape all control + // characters and spaces, but not anything else since we lack + // context to do something more specific. + AppendEscapedChar(static_cast<unsigned char>(uch), output); + } else { + output->push_back(static_cast<char>(uch)); + } + } +} + +// Overrides one component, see the Replacements structure for +// what the various combionations of source pointer and component mean. +void DoOverrideComponent(const char* override_source, + const Component& override_component, + const char** dest, + Component* dest_component) { + if (override_source) { + *dest = override_source; + *dest_component = override_component; + } +} + +// Similar to DoOverrideComponent except that it takes a UTF-16 input and does +// not actually set the output character pointer. +// +// The input is converted to UTF-8 at the end of the given buffer as a temporary +// holding place. The component identifying the portion of the buffer used in +// the |utf8_buffer| will be specified in |*dest_component|. +// +// This will not actually set any |dest| pointer like DoOverrideComponent +// does because all of the pointers will point into the |utf8_buffer|, which +// may get resized while we're overriding a subsequent component. Instead, the +// caller should use the beginning of the |utf8_buffer| as the string pointer +// for all components once all overrides have been prepared. +bool PrepareUTF16OverrideComponent(const base::char16* override_source, + const Component& override_component, + CanonOutput* utf8_buffer, + Component* dest_component) { + bool success = true; + if (override_source) { + if (!override_component.is_valid()) { + // Non-"valid" component (means delete), so we need to preserve that. + *dest_component = Component(); + } else { + // Convert to UTF-8. + dest_component->begin = utf8_buffer->length(); + success = ConvertUTF16ToUTF8(&override_source[override_component.begin], + override_component.len, utf8_buffer); + dest_component->len = utf8_buffer->length() - dest_component->begin; + } + } + return success; +} + +} // namespace + +// See the header file for this array's declaration. +const unsigned char kSharedCharTypeTable[0x100] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x00 - 0x0f + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x10 - 0x1f + 0, // 0x20 ' ' (escape spaces in queries) + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x21 ! + 0, // 0x22 " + 0, // 0x23 # (invalid in query since it marks the ref) + CHAR_QUERY | CHAR_USERINFO, // 0x24 $ + CHAR_QUERY | CHAR_USERINFO, // 0x25 % + CHAR_QUERY | CHAR_USERINFO, // 0x26 & + 0, // 0x27 ' (Try to prevent XSS.) + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x28 ( + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x29 ) + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x2a * + CHAR_QUERY | CHAR_USERINFO, // 0x2b + + CHAR_QUERY | CHAR_USERINFO, // 0x2c , + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x2d - + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_COMPONENT, // 0x2e . + CHAR_QUERY, // 0x2f / + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_DEC | CHAR_OCT | CHAR_COMPONENT, // 0x30 0 + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_DEC | CHAR_OCT | CHAR_COMPONENT, // 0x31 1 + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_DEC | CHAR_OCT | CHAR_COMPONENT, // 0x32 2 + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_DEC | CHAR_OCT | CHAR_COMPONENT, // 0x33 3 + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_DEC | CHAR_OCT | CHAR_COMPONENT, // 0x34 4 + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_DEC | CHAR_OCT | CHAR_COMPONENT, // 0x35 5 + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_DEC | CHAR_OCT | CHAR_COMPONENT, // 0x36 6 + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_DEC | CHAR_OCT | CHAR_COMPONENT, // 0x37 7 + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_DEC | CHAR_COMPONENT, // 0x38 8 + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_DEC | CHAR_COMPONENT, // 0x39 9 + CHAR_QUERY, // 0x3a : + CHAR_QUERY, // 0x3b ; + 0, // 0x3c < (Try to prevent certain types of XSS.) + CHAR_QUERY, // 0x3d = + 0, // 0x3e > (Try to prevent certain types of XSS.) + CHAR_QUERY, // 0x3f ? + CHAR_QUERY, // 0x40 @ + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_COMPONENT, // 0x41 A + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_COMPONENT, // 0x42 B + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_COMPONENT, // 0x43 C + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_COMPONENT, // 0x44 D + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_COMPONENT, // 0x45 E + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_COMPONENT, // 0x46 F + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x47 G + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x48 H + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x49 I + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x4a J + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x4b K + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x4c L + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x4d M + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x4e N + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x4f O + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x50 P + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x51 Q + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x52 R + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x53 S + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x54 T + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x55 U + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x56 V + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x57 W + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_COMPONENT, // 0x58 X + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x59 Y + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x5a Z + CHAR_QUERY, // 0x5b [ + CHAR_QUERY, // 0x5c '\' + CHAR_QUERY, // 0x5d ] + CHAR_QUERY, // 0x5e ^ + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x5f _ + CHAR_QUERY, // 0x60 ` + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_COMPONENT, // 0x61 a + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_COMPONENT, // 0x62 b + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_COMPONENT, // 0x63 c + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_COMPONENT, // 0x64 d + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_COMPONENT, // 0x65 e + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_HEX | CHAR_COMPONENT, // 0x66 f + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x67 g + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x68 h + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x69 i + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x6a j + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x6b k + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x6c l + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x6d m + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x6e n + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x6f o + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x70 p + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x71 q + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x72 r + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x73 s + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x74 t + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x75 u + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x76 v + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x77 w + CHAR_QUERY | CHAR_USERINFO | CHAR_IPV4 | CHAR_COMPONENT, // 0x78 x + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x79 y + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x7a z + CHAR_QUERY, // 0x7b { + CHAR_QUERY, // 0x7c | + CHAR_QUERY, // 0x7d } + CHAR_QUERY | CHAR_USERINFO | CHAR_COMPONENT, // 0x7e ~ + 0, // 0x7f + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x80 - 0x8f + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x90 - 0x9f + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0xa0 - 0xaf + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0xb0 - 0xbf + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0xc0 - 0xcf + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0xd0 - 0xdf + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0xe0 - 0xef + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0xf0 - 0xff +}; + +const char kHexCharLookup[0x10] = { + '0', '1', '2', '3', '4', '5', '6', '7', + '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', +}; + +const char kCharToHexLookup[8] = { + 0, // 0x00 - 0x1f + '0', // 0x20 - 0x3f: digits 0 - 9 are 0x30 - 0x39 + 'A' - 10, // 0x40 - 0x5f: letters A - F are 0x41 - 0x46 + 'a' - 10, // 0x60 - 0x7f: letters a - f are 0x61 - 0x66 + 0, // 0x80 - 0x9F + 0, // 0xA0 - 0xBF + 0, // 0xC0 - 0xDF + 0, // 0xE0 - 0xFF +}; + +const base::char16 kUnicodeReplacementCharacter = 0xfffd; + +void AppendStringOfType(const char* source, int length, + SharedCharTypes type, + CanonOutput* output) { + DoAppendStringOfType<char, unsigned char>(source, length, type, output); +} + +void AppendStringOfType(const base::char16* source, int length, + SharedCharTypes type, + CanonOutput* output) { + DoAppendStringOfType<base::char16, base::char16>( + source, length, type, output); +} + +bool ReadUTFChar(const char* str, int* begin, int length, + unsigned* code_point_out) { + // This depends on ints and int32s being the same thing. If they're not, it + // will fail to compile. + // TODO(mmenke): This should probably be fixed. + if (!base::ReadUnicodeCharacter(str, length, begin, code_point_out) || + !base::IsValidCharacter(*code_point_out)) { + *code_point_out = kUnicodeReplacementCharacter; + return false; + } + return true; +} + +bool ReadUTFChar(const base::char16* str, int* begin, int length, + unsigned* code_point_out) { + // This depends on ints and int32s being the same thing. If they're not, it + // will fail to compile. + // TODO(mmenke): This should probably be fixed. + if (!base::ReadUnicodeCharacter(str, length, begin, code_point_out) || + !base::IsValidCharacter(*code_point_out)) { + *code_point_out = kUnicodeReplacementCharacter; + return false; + } + return true; +} + +void AppendInvalidNarrowString(const char* spec, int begin, int end, + CanonOutput* output) { + DoAppendInvalidNarrowString<char, unsigned char>(spec, begin, end, output); +} + +void AppendInvalidNarrowString(const base::char16* spec, int begin, int end, + CanonOutput* output) { + DoAppendInvalidNarrowString<base::char16, base::char16>( + spec, begin, end, output); +} + +bool ConvertUTF16ToUTF8(const base::char16* input, int input_len, + CanonOutput* output) { + bool success = true; + for (int i = 0; i < input_len; i++) { + unsigned code_point; + success &= ReadUTFChar(input, &i, input_len, &code_point); + AppendUTF8Value(code_point, output); + } + return success; +} + +bool ConvertUTF8ToUTF16(const char* input, int input_len, + CanonOutputT<base::char16>* output) { + bool success = true; + for (int i = 0; i < input_len; i++) { + unsigned code_point; + success &= ReadUTFChar(input, &i, input_len, &code_point); + AppendUTF16Value(code_point, output); + } + return success; +} + +void SetupOverrideComponents(const char* base, + const Replacements<char>& repl, + URLComponentSource<char>* source, + Parsed* parsed) { + // Get the source and parsed structures of the things we are replacing. + const URLComponentSource<char>& repl_source = repl.sources(); + const Parsed& repl_parsed = repl.components(); + + DoOverrideComponent(repl_source.scheme, repl_parsed.scheme, + &source->scheme, &parsed->scheme); + DoOverrideComponent(repl_source.username, repl_parsed.username, + &source->username, &parsed->username); + DoOverrideComponent(repl_source.password, repl_parsed.password, + &source->password, &parsed->password); + + // Our host should be empty if not present, so override the default setup. + DoOverrideComponent(repl_source.host, repl_parsed.host, + &source->host, &parsed->host); + if (parsed->host.len == -1) + parsed->host.len = 0; + + DoOverrideComponent(repl_source.port, repl_parsed.port, + &source->port, &parsed->port); + DoOverrideComponent(repl_source.path, repl_parsed.path, + &source->path, &parsed->path); + DoOverrideComponent(repl_source.query, repl_parsed.query, + &source->query, &parsed->query); + DoOverrideComponent(repl_source.ref, repl_parsed.ref, + &source->ref, &parsed->ref); +} + +bool SetupUTF16OverrideComponents(const char* base, + const Replacements<base::char16>& repl, + CanonOutput* utf8_buffer, + URLComponentSource<char>* source, + Parsed* parsed) { + bool success = true; + + // Get the source and parsed structures of the things we are replacing. + const URLComponentSource<base::char16>& repl_source = repl.sources(); + const Parsed& repl_parsed = repl.components(); + + success &= PrepareUTF16OverrideComponent( + repl_source.scheme, repl_parsed.scheme, + utf8_buffer, &parsed->scheme); + success &= PrepareUTF16OverrideComponent( + repl_source.username, repl_parsed.username, + utf8_buffer, &parsed->username); + success &= PrepareUTF16OverrideComponent( + repl_source.password, repl_parsed.password, + utf8_buffer, &parsed->password); + success &= PrepareUTF16OverrideComponent( + repl_source.host, repl_parsed.host, + utf8_buffer, &parsed->host); + success &= PrepareUTF16OverrideComponent( + repl_source.port, repl_parsed.port, + utf8_buffer, &parsed->port); + success &= PrepareUTF16OverrideComponent( + repl_source.path, repl_parsed.path, + utf8_buffer, &parsed->path); + success &= PrepareUTF16OverrideComponent( + repl_source.query, repl_parsed.query, + utf8_buffer, &parsed->query); + success &= PrepareUTF16OverrideComponent( + repl_source.ref, repl_parsed.ref, + utf8_buffer, &parsed->ref); + + // PrepareUTF16OverrideComponent will not have set the data pointer since the + // buffer could be resized, invalidating the pointers. We set the data + // pointers for affected components now that the buffer is finalized. + if (repl_source.scheme) source->scheme = utf8_buffer->data(); + if (repl_source.username) source->username = utf8_buffer->data(); + if (repl_source.password) source->password = utf8_buffer->data(); + if (repl_source.host) source->host = utf8_buffer->data(); + if (repl_source.port) source->port = utf8_buffer->data(); + if (repl_source.path) source->path = utf8_buffer->data(); + if (repl_source.query) source->query = utf8_buffer->data(); + if (repl_source.ref) source->ref = utf8_buffer->data(); + + return success; +} + +#ifndef WIN32 + +int _itoa_s(int value, char* buffer, size_t size_in_chars, int radix) { + const char* format_str; + if (radix == 10) + format_str = "%d"; + else if (radix == 16) + format_str = "%x"; + else + return EINVAL; + + int written = snprintf(buffer, size_in_chars, format_str, value); + if (static_cast<size_t>(written) >= size_in_chars) { + // Output was truncated, or written was negative. + return EINVAL; + } + return 0; +} + +int _itow_s(int value, base::char16* buffer, size_t size_in_chars, int radix) { + if (radix != 10) + return EINVAL; + + // No more than 12 characters will be required for a 32-bit integer. + // Add an extra byte for the terminating null. + char temp[13]; + int written = snprintf(temp, sizeof(temp), "%d", value); + if (static_cast<size_t>(written) >= size_in_chars) { + // Output was truncated, or written was negative. + return EINVAL; + } + + for (int i = 0; i < written; ++i) { + buffer[i] = static_cast<base::char16>(temp[i]); + } + buffer[written] = '\0'; + return 0; +} + +#endif // !WIN32 + +} // namespace url
diff --git a/url_canon_internal.h b/url_canon_internal.h new file mode 100644 index 0000000..71bfc40 --- /dev/null +++ b/url_canon_internal.h
@@ -0,0 +1,433 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_CANON_INTERNAL_H_ +#define URL_URL_CANON_INTERNAL_H_ + +// This file is intended to be included in another C++ file where the character +// types are defined. This allows us to write mostly generic code, but not have +// templace bloat because everything is inlined when anybody calls any of our +// functions. + +#include <stdlib.h> + +#include "base/logging.h" +#include "url/url_canon.h" + +namespace url { + +// Character type handling ----------------------------------------------------- + +// Bits that identify different character types. These types identify different +// bits that are set for each 8-bit character in the kSharedCharTypeTable. +enum SharedCharTypes { + // Characters that do not require escaping in queries. Characters that do + // not have this flag will be escaped; see url_canon_query.cc + CHAR_QUERY = 1, + + // Valid in the username/password field. + CHAR_USERINFO = 2, + + // Valid in a IPv4 address (digits plus dot and 'x' for hex). + CHAR_IPV4 = 4, + + // Valid in an ASCII-representation of a hex digit (as in %-escaped). + CHAR_HEX = 8, + + // Valid in an ASCII-representation of a decimal digit. + CHAR_DEC = 16, + + // Valid in an ASCII-representation of an octal digit. + CHAR_OCT = 32, + + // Characters that do not require escaping in encodeURIComponent. Characters + // that do not have this flag will be escaped; see url_util.cc. + CHAR_COMPONENT = 64, +}; + +// This table contains the flags in SharedCharTypes for each 8-bit character. +// Some canonicalization functions have their own specialized lookup table. +// For those with simple requirements, we have collected the flags in one +// place so there are fewer lookup tables to load into the CPU cache. +// +// Using an unsigned char type has a small but measurable performance benefit +// over using a 32-bit number. +extern const unsigned char kSharedCharTypeTable[0x100]; + +// More readable wrappers around the character type lookup table. +inline bool IsCharOfType(unsigned char c, SharedCharTypes type) { + return !!(kSharedCharTypeTable[c] & type); +} +inline bool IsQueryChar(unsigned char c) { + return IsCharOfType(c, CHAR_QUERY); +} +inline bool IsIPv4Char(unsigned char c) { + return IsCharOfType(c, CHAR_IPV4); +} +inline bool IsHexChar(unsigned char c) { + return IsCharOfType(c, CHAR_HEX); +} +inline bool IsComponentChar(unsigned char c) { + return IsCharOfType(c, CHAR_COMPONENT); +} + +// Appends the given string to the output, escaping characters that do not +// match the given |type| in SharedCharTypes. +void AppendStringOfType(const char* source, int length, + SharedCharTypes type, + CanonOutput* output); +void AppendStringOfType(const base::char16* source, int length, + SharedCharTypes type, + CanonOutput* output); + +// Maps the hex numerical values 0x0 to 0xf to the corresponding ASCII digit +// that will be used to represent it. +URL_EXPORT extern const char kHexCharLookup[0x10]; + +// This lookup table allows fast conversion between ASCII hex letters and their +// corresponding numerical value. The 8-bit range is divided up into 8 +// regions of 0x20 characters each. Each of the three character types (numbers, +// uppercase, lowercase) falls into different regions of this range. The table +// contains the amount to subtract from characters in that range to get at +// the corresponding numerical value. +// +// See HexDigitToValue for the lookup. +extern const char kCharToHexLookup[8]; + +// Assumes the input is a valid hex digit! Call IsHexChar before using this. +inline unsigned char HexCharToValue(unsigned char c) { + return c - kCharToHexLookup[c / 0x20]; +} + +// Indicates if the given character is a dot or dot equivalent, returning the +// number of characters taken by it. This will be one for a literal dot, 3 for +// an escaped dot. If the character is not a dot, this will return 0. +template<typename CHAR> +inline int IsDot(const CHAR* spec, int offset, int end) { + if (spec[offset] == '.') { + return 1; + } else if (spec[offset] == '%' && offset + 3 <= end && + spec[offset + 1] == '2' && + (spec[offset + 2] == 'e' || spec[offset + 2] == 'E')) { + // Found "%2e" + return 3; + } + return 0; +} + +// Returns the canonicalized version of the input character according to scheme +// rules. This is implemented alongside the scheme canonicalizer, and is +// required for relative URL resolving to test for scheme equality. +// +// Returns 0 if the input character is not a valid scheme character. +char CanonicalSchemeChar(base::char16 ch); + +// Write a single character, escaped, to the output. This always escapes: it +// does no checking that thee character requires escaping. +// Escaping makes sense only 8 bit chars, so code works in all cases of +// input parameters (8/16bit). +template<typename UINCHAR, typename OUTCHAR> +inline void AppendEscapedChar(UINCHAR ch, + CanonOutputT<OUTCHAR>* output) { + output->push_back('%'); + output->push_back(kHexCharLookup[(ch >> 4) & 0xf]); + output->push_back(kHexCharLookup[ch & 0xf]); +} + +// The character we'll substitute for undecodable or invalid characters. +extern const base::char16 kUnicodeReplacementCharacter; + +// UTF-8 functions ------------------------------------------------------------ + +// Reads one character in UTF-8 starting at |*begin| in |str| and places +// the decoded value into |*code_point|. If the character is valid, we will +// return true. If invalid, we'll return false and put the +// kUnicodeReplacementCharacter into |*code_point|. +// +// |*begin| will be updated to point to the last character consumed so it +// can be incremented in a loop and will be ready for the next character. +// (for a single-byte ASCII character, it will not be changed). +URL_EXPORT bool ReadUTFChar(const char* str, int* begin, int length, + unsigned* code_point_out); + +// Generic To-UTF-8 converter. This will call the given append method for each +// character that should be appended, with the given output method. Wrappers +// are provided below for escaped and non-escaped versions of this. +// +// The char_value must have already been checked that it's a valid Unicode +// character. +template<class Output, void Appender(unsigned char, Output*)> +inline void DoAppendUTF8(unsigned char_value, Output* output) { + if (char_value <= 0x7f) { + Appender(static_cast<unsigned char>(char_value), output); + } else if (char_value <= 0x7ff) { + // 110xxxxx 10xxxxxx + Appender(static_cast<unsigned char>(0xC0 | (char_value >> 6)), + output); + Appender(static_cast<unsigned char>(0x80 | (char_value & 0x3f)), + output); + } else if (char_value <= 0xffff) { + // 1110xxxx 10xxxxxx 10xxxxxx + Appender(static_cast<unsigned char>(0xe0 | (char_value >> 12)), + output); + Appender(static_cast<unsigned char>(0x80 | ((char_value >> 6) & 0x3f)), + output); + Appender(static_cast<unsigned char>(0x80 | (char_value & 0x3f)), + output); + } else if (char_value <= 0x10FFFF) { // Max unicode code point. + // 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + Appender(static_cast<unsigned char>(0xf0 | (char_value >> 18)), + output); + Appender(static_cast<unsigned char>(0x80 | ((char_value >> 12) & 0x3f)), + output); + Appender(static_cast<unsigned char>(0x80 | ((char_value >> 6) & 0x3f)), + output); + Appender(static_cast<unsigned char>(0x80 | (char_value & 0x3f)), + output); + } else { + // Invalid UTF-8 character (>20 bits). + NOTREACHED(); + } +} + +// Helper used by AppendUTF8Value below. We use an unsigned parameter so there +// are no funny sign problems with the input, but then have to convert it to +// a regular char for appending. +inline void AppendCharToOutput(unsigned char ch, CanonOutput* output) { + output->push_back(static_cast<char>(ch)); +} + +// Writes the given character to the output as UTF-8. This does NO checking +// of the validity of the unicode characters; the caller should ensure that +// the value it is appending is valid to append. +inline void AppendUTF8Value(unsigned char_value, CanonOutput* output) { + DoAppendUTF8<CanonOutput, AppendCharToOutput>(char_value, output); +} + +// Writes the given character to the output as UTF-8, escaping ALL +// characters (even when they are ASCII). This does NO checking of the +// validity of the unicode characters; the caller should ensure that the value +// it is appending is valid to append. +inline void AppendUTF8EscapedValue(unsigned char_value, CanonOutput* output) { + DoAppendUTF8<CanonOutput, AppendEscapedChar>(char_value, output); +} + +// UTF-16 functions ----------------------------------------------------------- + +// Reads one character in UTF-16 starting at |*begin| in |str| and places +// the decoded value into |*code_point|. If the character is valid, we will +// return true. If invalid, we'll return false and put the +// kUnicodeReplacementCharacter into |*code_point|. +// +// |*begin| will be updated to point to the last character consumed so it +// can be incremented in a loop and will be ready for the next character. +// (for a single-16-bit-word character, it will not be changed). +URL_EXPORT bool ReadUTFChar(const base::char16* str, int* begin, int length, + unsigned* code_point_out); + +// Equivalent to U16_APPEND_UNSAFE in ICU but uses our output method. +inline void AppendUTF16Value(unsigned code_point, + CanonOutputT<base::char16>* output) { + if (code_point > 0xffff) { + output->push_back(static_cast<base::char16>((code_point >> 10) + 0xd7c0)); + output->push_back(static_cast<base::char16>((code_point & 0x3ff) | 0xdc00)); + } else { + output->push_back(static_cast<base::char16>(code_point)); + } +} + +// Escaping functions --------------------------------------------------------- + +// Writes the given character to the output as UTF-8, escaped. Call this +// function only when the input is wide. Returns true on success. Failure +// means there was some problem with the encoding, we'll still try to +// update the |*begin| pointer and add a placeholder character to the +// output so processing can continue. +// +// We will append the character starting at ch[begin] with the buffer ch +// being |length|. |*begin| will be updated to point to the last character +// consumed (we may consume more than one for UTF-16) so that if called in +// a loop, incrementing the pointer will move to the next character. +// +// Every single output character will be escaped. This means that if you +// give it an ASCII character as input, it will be escaped. Some code uses +// this when it knows that a character is invalid according to its rules +// for validity. If you don't want escaping for ASCII characters, you will +// have to filter them out prior to calling this function. +// +// Assumes that ch[begin] is within range in the array, but does not assume +// that any following characters are. +inline bool AppendUTF8EscapedChar(const base::char16* str, int* begin, + int length, CanonOutput* output) { + // UTF-16 input. Readchar16 will handle invalid characters for us and give + // us the kUnicodeReplacementCharacter, so we don't have to do special + // checking after failure, just pass through the failure to the caller. + unsigned char_value; + bool success = ReadUTFChar(str, begin, length, &char_value); + AppendUTF8EscapedValue(char_value, output); + return success; +} + +// Handles UTF-8 input. See the wide version above for usage. +inline bool AppendUTF8EscapedChar(const char* str, int* begin, int length, + CanonOutput* output) { + // ReadUTF8Char will handle invalid characters for us and give us the + // kUnicodeReplacementCharacter, so we don't have to do special checking + // after failure, just pass through the failure to the caller. + unsigned ch; + bool success = ReadUTFChar(str, begin, length, &ch); + AppendUTF8EscapedValue(ch, output); + return success; +} + +// Given a '%' character at |*begin| in the string |spec|, this will decode +// the escaped value and put it into |*unescaped_value| on success (returns +// true). On failure, this will return false, and will not write into +// |*unescaped_value|. +// +// |*begin| will be updated to point to the last character of the escape +// sequence so that when called with the index of a for loop, the next time +// through it will point to the next character to be considered. On failure, +// |*begin| will be unchanged. +inline bool Is8BitChar(char c) { + return true; // this case is specialized to avoid a warning +} +inline bool Is8BitChar(base::char16 c) { + return c <= 255; +} + +template<typename CHAR> +inline bool DecodeEscaped(const CHAR* spec, int* begin, int end, + unsigned char* unescaped_value) { + if (*begin + 3 > end || + !Is8BitChar(spec[*begin + 1]) || !Is8BitChar(spec[*begin + 2])) { + // Invalid escape sequence because there's not enough room, or the + // digits are not ASCII. + return false; + } + + unsigned char first = static_cast<unsigned char>(spec[*begin + 1]); + unsigned char second = static_cast<unsigned char>(spec[*begin + 2]); + if (!IsHexChar(first) || !IsHexChar(second)) { + // Invalid hex digits, fail. + return false; + } + + // Valid escape sequence. + *unescaped_value = (HexCharToValue(first) << 4) + HexCharToValue(second); + *begin += 2; + return true; +} + +// Appends the given substring to the output, escaping "some" characters that +// it feels may not be safe. It assumes the input values are all contained in +// 8-bit although it allows any type. +// +// This is used in error cases to append invalid output so that it looks +// approximately correct. Non-error cases should not call this function since +// the escaping rules are not guaranteed! +void AppendInvalidNarrowString(const char* spec, int begin, int end, + CanonOutput* output); +void AppendInvalidNarrowString(const base::char16* spec, int begin, int end, + CanonOutput* output); + +// Misc canonicalization helpers ---------------------------------------------- + +// Converts between UTF-8 and UTF-16, returning true on successful conversion. +// The output will be appended to the given canonicalizer output (so make sure +// it's empty if you want to replace). +// +// On invalid input, this will still write as much output as possible, +// replacing the invalid characters with the "invalid character". It will +// return false in the failure case, and the caller should not continue as +// normal. +URL_EXPORT bool ConvertUTF16ToUTF8(const base::char16* input, int input_len, + CanonOutput* output); +URL_EXPORT bool ConvertUTF8ToUTF16(const char* input, int input_len, + CanonOutputT<base::char16>* output); + +// Converts from UTF-16 to 8-bit using the character set converter. If the +// converter is NULL, this will use UTF-8. +void ConvertUTF16ToQueryEncoding(const base::char16* input, + const Component& query, + CharsetConverter* converter, + CanonOutput* output); + +// Applies the replacements to the given component source. The component source +// should be pre-initialized to the "old" base. That is, all pointers will +// point to the spec of the old URL, and all of the Parsed components will +// be indices into that string. +// +// The pointers and components in the |source| for all non-NULL strings in the +// |repl| (replacements) will be updated to reference those strings. +// Canonicalizing with the new |source| and |parsed| can then combine URL +// components from many different strings. +void SetupOverrideComponents(const char* base, + const Replacements<char>& repl, + URLComponentSource<char>* source, + Parsed* parsed); + +// Like the above 8-bit version, except that it additionally converts the +// UTF-16 input to UTF-8 before doing the overrides. +// +// The given utf8_buffer is used to store the converted components. They will +// be appended one after another, with the parsed structure identifying the +// appropriate substrings. This buffer is a parameter because the source has +// no storage, so the buffer must have the same lifetime as the source +// parameter owned by the caller. +// +// THE CALLER MUST NOT ADD TO THE |utf8_buffer| AFTER THIS CALL. Members of +// |source| will point into this buffer, which could be invalidated if +// additional data is added and the CanonOutput resizes its buffer. +// +// Returns true on success. False means that the input was not valid UTF-16, +// although we will have still done the override with "invalid characters" in +// place of errors. +bool SetupUTF16OverrideComponents(const char* base, + const Replacements<base::char16>& repl, + CanonOutput* utf8_buffer, + URLComponentSource<char>* source, + Parsed* parsed); + +// Implemented in url_canon_path.cc, these are required by the relative URL +// resolver as well, so we declare them here. +bool CanonicalizePartialPath(const char* spec, + const Component& path, + int path_begin_in_output, + CanonOutput* output); +bool CanonicalizePartialPath(const base::char16* spec, + const Component& path, + int path_begin_in_output, + CanonOutput* output); + +#ifndef WIN32 + +// Implementations of Windows' int-to-string conversions +URL_EXPORT int _itoa_s(int value, char* buffer, size_t size_in_chars, + int radix); +URL_EXPORT int _itow_s(int value, base::char16* buffer, size_t size_in_chars, + int radix); + +// Secure template overloads for these functions +template<size_t N> +inline int _itoa_s(int value, char (&buffer)[N], int radix) { + return _itoa_s(value, buffer, N, radix); +} + +template<size_t N> +inline int _itow_s(int value, base::char16 (&buffer)[N], int radix) { + return _itow_s(value, buffer, N, radix); +} + +// _strtoui64 and strtoull behave the same +inline unsigned long long _strtoui64(const char* nptr, + char** endptr, int base) { + return strtoull(nptr, endptr, base); +} + +#endif // WIN32 + +} // namespace url + +#endif // URL_URL_CANON_INTERNAL_H_
diff --git a/url_canon_internal_file.h b/url_canon_internal_file.h new file mode 100644 index 0000000..6903098 --- /dev/null +++ b/url_canon_internal_file.h
@@ -0,0 +1,135 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_CANON_INTERNAL_FILE_H_ +#define URL_URL_CANON_INTERNAL_FILE_H_ + +// As with url_canon_internal.h, this file is intended to be included in +// another C++ file where the template types are defined. This allows the +// programmer to use this to use these functions for their own strings +// types, without bloating the code by having inline templates used in +// every call site. +// +// *** This file must be included after url_canon_internal as we depend on some +// functions in it. *** + + +#include "url/url_file.h" +#include "url/url_parse_internal.h" + +namespace url { + +// Given a pointer into the spec, this copies and canonicalizes the drive +// letter and colon to the output, if one is found. If there is not a drive +// spec, it won't do anything. The index of the next character in the input +// spec is returned (after the colon when a drive spec is found, the begin +// offset if one is not). +template<typename CHAR> +static int FileDoDriveSpec(const CHAR* spec, int begin, int end, + CanonOutput* output) { + // The path could be one of several things: /foo/bar, c:/foo/bar, /c:/foo, + // (with backslashes instead of slashes as well). + int num_slashes = CountConsecutiveSlashes(spec, begin, end); + int after_slashes = begin + num_slashes; + + if (!DoesBeginWindowsDriveSpec(spec, after_slashes, end)) + return begin; // Haven't consumed any characters + + // DoesBeginWindowsDriveSpec will ensure that the drive letter is valid + // and that it is followed by a colon/pipe. + + // Normalize Windows drive letters to uppercase + if (spec[after_slashes] >= 'a' && spec[after_slashes] <= 'z') + output->push_back(spec[after_slashes] - 'a' + 'A'); + else + output->push_back(static_cast<char>(spec[after_slashes])); + + // Normalize the character following it to a colon rather than pipe. + output->push_back(':'); + output->push_back('/'); + return after_slashes + 2; +} + +// FileDoDriveSpec will have already added the first backslash, so we need to +// write everything following the slashes using the path canonicalizer. +template<typename CHAR, typename UCHAR> +static void FileDoPath(const CHAR* spec, int begin, int end, + CanonOutput* output) { + // Normalize the number of slashes after the drive letter. The path + // canonicalizer expects the input to begin in a slash already so + // doesn't check. We want to handle no-slashes + int num_slashes = CountConsecutiveSlashes(spec, begin, end); + int after_slashes = begin + num_slashes; + + // Now use the regular path canonicalizer to canonicalize the rest of the + // path. We supply it with the path following the slashes. It won't prepend + // a slash because it assumes any nonempty path already starts with one. + // We explicitly filter out calls with no path here to prevent that case. + ParsedComponent sub_path(after_slashes, end - after_slashes); + if (sub_path.len > 0) { + // Give it a fake output component to write into. DoCanonicalizeFile will + // compute the full path component. + ParsedComponent fake_output_path; + URLCanonInternal<CHAR, UCHAR>::DoPath( + spec, sub_path, output, &fake_output_path); + } +} + +template<typename CHAR, typename UCHAR> +static bool DoCanonicalizeFileURL(const URLComponentSource<CHAR>& source, + const ParsedURL& parsed, + CanonOutput* output, + ParsedURL* new_parsed) { + // Things we don't set in file: URLs. + new_parsed->username = ParsedComponent(0, -1); + new_parsed->password = ParsedComponent(0, -1); + new_parsed->port = ParsedComponent(0, -1); + + // Scheme (known, so we don't bother running it through the more + // complicated scheme canonicalizer). + new_parsed->scheme.begin = output->length(); + output->push_back('f'); + output->push_back('i'); + output->push_back('l'); + output->push_back('e'); + new_parsed->scheme.len = output->length() - new_parsed->scheme.begin; + output->push_back(':'); + + // Write the separator for the host. + output->push_back('/'); + output->push_back('/'); + + // Append the host. For many file URLs, this will be empty. For UNC, this + // will be present. + // TODO(brettw) This doesn't do any checking for host name validity. We + // should probably handle validity checking of UNC hosts differently than + // for regular IP hosts. + bool success = URLCanonInternal<CHAR, UCHAR>::DoHost( + source.host, parsed.host, output, &new_parsed->host); + + // Write a separator for the start of the path. We'll ignore any slashes + // already at the beginning of the path. + new_parsed->path.begin = output->length(); + output->push_back('/'); + + // Copies and normalizes the "c:" at the beginning, if present. + int after_drive = FileDoDriveSpec(source.path, parsed.path.begin, + parsed.path.end(), output); + + // Copies the rest of the path + FileDoPath<CHAR, UCHAR>(source.path, after_drive, parsed.path.end(), output); + new_parsed->path.len = output->length() - new_parsed->path.begin; + + // Things following the path we can use the standard canonicalizers for. + success &= URLCanonInternal<CHAR, UCHAR>::DoQuery( + source.query, parsed.query, output, &new_parsed->query); + success &= URLCanonInternal<CHAR, UCHAR>::DoRef( + source.ref, parsed.ref, output, &new_parsed->ref); + + return success; +} + +} // namespace url + +#endif // URL_URL_CANON_INTERNAL_FILE_H_
diff --git a/url_canon_ip.cc b/url_canon_ip.cc new file mode 100644 index 0000000..45f95de --- /dev/null +++ b/url_canon_ip.cc
@@ -0,0 +1,709 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "url/url_canon_ip.h" + +#include <stdlib.h> + +#include "base/basictypes.h" +#include "base/logging.h" +#include "url/url_canon_internal.h" + +namespace url { + +namespace { + +// Converts one of the character types that represent a numerical base to the +// corresponding base. +int BaseForType(SharedCharTypes type) { + switch (type) { + case CHAR_HEX: + return 16; + case CHAR_DEC: + return 10; + case CHAR_OCT: + return 8; + default: + return 0; + } +} + +template<typename CHAR, typename UCHAR> +bool DoFindIPv4Components(const CHAR* spec, + const Component& host, + Component components[4]) { + if (!host.is_nonempty()) + return false; + + int cur_component = 0; // Index of the component we're working on. + int cur_component_begin = host.begin; // Start of the current component. + int end = host.end(); + for (int i = host.begin; /* nothing */; i++) { + if (i >= end || spec[i] == '.') { + // Found the end of the current component. + int component_len = i - cur_component_begin; + components[cur_component] = Component(cur_component_begin, component_len); + + // The next component starts after the dot. + cur_component_begin = i + 1; + cur_component++; + + // Don't allow empty components (two dots in a row), except we may + // allow an empty component at the end (this would indicate that the + // input ends in a dot). We also want to error if the component is + // empty and it's the only component (cur_component == 1). + if (component_len == 0 && (i < end || cur_component == 1)) + return false; + + if (i >= end) + break; // End of the input. + + if (cur_component == 4) { + // Anything else after the 4th component is an error unless it is a + // dot that would otherwise be treated as the end of input. + if (spec[i] == '.' && i + 1 == end) + break; + return false; + } + } else if (static_cast<UCHAR>(spec[i]) >= 0x80 || + !IsIPv4Char(static_cast<unsigned char>(spec[i]))) { + // Invalid character for an IPv4 address. + return false; + } + } + + // Fill in any unused components. + while (cur_component < 4) + components[cur_component++] = Component(); + return true; +} + +// Converts an IPv4 component to a 32-bit number, while checking for overflow. +// +// Possible return values: +// - IPV4 - The number was valid, and did not overflow. +// - BROKEN - The input was numeric, but too large for a 32-bit field. +// - NEUTRAL - Input was not numeric. +// +// The input is assumed to be ASCII. FindIPv4Components should have stripped +// out any input that is greater than 7 bits. The components are assumed +// to be non-empty. +template<typename CHAR> +CanonHostInfo::Family IPv4ComponentToNumber(const CHAR* spec, + const Component& component, + uint32* number) { + // Figure out the base + SharedCharTypes base; + int base_prefix_len = 0; // Size of the prefix for this base. + if (spec[component.begin] == '0') { + // Either hex or dec, or a standalone zero. + if (component.len == 1) { + base = CHAR_DEC; + } else if (spec[component.begin + 1] == 'X' || + spec[component.begin + 1] == 'x') { + base = CHAR_HEX; + base_prefix_len = 2; + } else { + base = CHAR_OCT; + base_prefix_len = 1; + } + } else { + base = CHAR_DEC; + } + + // Extend the prefix to consume all leading zeros. + while (base_prefix_len < component.len && + spec[component.begin + base_prefix_len] == '0') + base_prefix_len++; + + // Put the component, minus any base prefix, into a NULL-terminated buffer so + // we can call the standard library. Because leading zeros have already been + // discarded, filling the entire buffer is guaranteed to trigger the 32-bit + // overflow check. + const int kMaxComponentLen = 16; + char buf[kMaxComponentLen + 1]; // digits + '\0' + int dest_i = 0; + for (int i = component.begin + base_prefix_len; i < component.end(); i++) { + // We know the input is 7-bit, so convert to narrow (if this is the wide + // version of the template) by casting. + char input = static_cast<char>(spec[i]); + + // Validate that this character is OK for the given base. + if (!IsCharOfType(input, base)) + return CanonHostInfo::NEUTRAL; + + // Fill the buffer, if there's space remaining. This check allows us to + // verify that all characters are numeric, even those that don't fit. + if (dest_i < kMaxComponentLen) + buf[dest_i++] = input; + } + + buf[dest_i] = '\0'; + + // Use the 64-bit strtoi so we get a big number (no hex, decimal, or octal + // number can overflow a 64-bit number in <= 16 characters). + uint64 num = _strtoui64(buf, NULL, BaseForType(base)); + + // Check for 32-bit overflow. + if (num > kuint32max) + return CanonHostInfo::BROKEN; + + // No overflow. Success! + *number = static_cast<uint32>(num); + return CanonHostInfo::IPV4; +} + +// See declaration of IPv4AddressToNumber for documentation. +template<typename CHAR> +CanonHostInfo::Family DoIPv4AddressToNumber(const CHAR* spec, + const Component& host, + unsigned char address[4], + int* num_ipv4_components) { + // The identified components. Not all may exist. + Component components[4]; + if (!FindIPv4Components(spec, host, components)) + return CanonHostInfo::NEUTRAL; + + // Convert existing components to digits. Values up to + // |existing_components| will be valid. + uint32 component_values[4]; + int existing_components = 0; + + // Set to true if one or more components are BROKEN. BROKEN is only + // returned if all components are IPV4 or BROKEN, so, for example, + // 12345678912345.de returns NEUTRAL rather than broken. + bool broken = false; + for (int i = 0; i < 4; i++) { + if (components[i].len <= 0) + continue; + CanonHostInfo::Family family = IPv4ComponentToNumber( + spec, components[i], &component_values[existing_components]); + + if (family == CanonHostInfo::BROKEN) { + broken = true; + } else if (family != CanonHostInfo::IPV4) { + // Stop if we hit a non-BROKEN invalid non-empty component. + return family; + } + + existing_components++; + } + + if (broken) + return CanonHostInfo::BROKEN; + + // Use that sequence of numbers to fill out the 4-component IP address. + + // First, process all components but the last, while making sure each fits + // within an 8-bit field. + for (int i = 0; i < existing_components - 1; i++) { + if (component_values[i] > kuint8max) + return CanonHostInfo::BROKEN; + address[i] = static_cast<unsigned char>(component_values[i]); + } + + // Next, consume the last component to fill in the remaining bytes. + // Work around a gcc 4.9 bug. crbug.com/392872 +#if ((__GNUC__ == 4 && __GNUC_MINOR__ >= 9) || __GNUC__ > 4) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Warray-bounds" +#endif + uint32 last_value = component_values[existing_components - 1]; +#if ((__GNUC__ == 4 && __GNUC_MINOR__ >= 9) || __GNUC__ > 4) +#pragma GCC diagnostic pop +#endif + for (int i = 3; i >= existing_components - 1; i--) { + address[i] = static_cast<unsigned char>(last_value); + last_value >>= 8; + } + + // If the last component has residual bits, report overflow. + if (last_value != 0) + return CanonHostInfo::BROKEN; + + // Tell the caller how many components we saw. + *num_ipv4_components = existing_components; + + // Success! + return CanonHostInfo::IPV4; +} + +// Return true if we've made a final IPV4/BROKEN decision, false if the result +// is NEUTRAL, and we could use a second opinion. +template<typename CHAR, typename UCHAR> +bool DoCanonicalizeIPv4Address(const CHAR* spec, + const Component& host, + CanonOutput* output, + CanonHostInfo* host_info) { + host_info->family = IPv4AddressToNumber( + spec, host, host_info->address, &host_info->num_ipv4_components); + + switch (host_info->family) { + case CanonHostInfo::IPV4: + // Definitely an IPv4 address. + host_info->out_host.begin = output->length(); + AppendIPv4Address(host_info->address, output); + host_info->out_host.len = output->length() - host_info->out_host.begin; + return true; + case CanonHostInfo::BROKEN: + // Definitely broken. + return true; + default: + // Could be IPv6 or a hostname. + return false; + } +} + +// Helper class that describes the main components of an IPv6 input string. +// See the following examples to understand how it breaks up an input string: +// +// [Example 1]: input = "[::aa:bb]" +// ==> num_hex_components = 2 +// ==> hex_components[0] = Component(3,2) "aa" +// ==> hex_components[1] = Component(6,2) "bb" +// ==> index_of_contraction = 0 +// ==> ipv4_component = Component(0, -1) +// +// [Example 2]: input = "[1:2::3:4:5]" +// ==> num_hex_components = 5 +// ==> hex_components[0] = Component(1,1) "1" +// ==> hex_components[1] = Component(3,1) "2" +// ==> hex_components[2] = Component(6,1) "3" +// ==> hex_components[3] = Component(8,1) "4" +// ==> hex_components[4] = Component(10,1) "5" +// ==> index_of_contraction = 2 +// ==> ipv4_component = Component(0, -1) +// +// [Example 3]: input = "[::ffff:192.168.0.1]" +// ==> num_hex_components = 1 +// ==> hex_components[0] = Component(3,4) "ffff" +// ==> index_of_contraction = 0 +// ==> ipv4_component = Component(8, 11) "192.168.0.1" +// +// [Example 4]: input = "[1::]" +// ==> num_hex_components = 1 +// ==> hex_components[0] = Component(1,1) "1" +// ==> index_of_contraction = 1 +// ==> ipv4_component = Component(0, -1) +// +// [Example 5]: input = "[::192.168.0.1]" +// ==> num_hex_components = 0 +// ==> index_of_contraction = 0 +// ==> ipv4_component = Component(8, 11) "192.168.0.1" +// +struct IPv6Parsed { + // Zero-out the parse information. + void reset() { + num_hex_components = 0; + index_of_contraction = -1; + ipv4_component.reset(); + } + + // There can be up to 8 hex components (colon separated) in the literal. + Component hex_components[8]; + + // The count of hex components present. Ranges from [0,8]. + int num_hex_components; + + // The index of the hex component that the "::" contraction precedes, or + // -1 if there is no contraction. + int index_of_contraction; + + // The range of characters which are an IPv4 literal. + Component ipv4_component; +}; + +// Parse the IPv6 input string. If parsing succeeded returns true and fills +// |parsed| with the information. If parsing failed (because the input is +// invalid) returns false. +template<typename CHAR, typename UCHAR> +bool DoParseIPv6(const CHAR* spec, const Component& host, IPv6Parsed* parsed) { + // Zero-out the info. + parsed->reset(); + + if (!host.is_nonempty()) + return false; + + // The index for start and end of address range (no brackets). + int begin = host.begin; + int end = host.end(); + + int cur_component_begin = begin; // Start of the current component. + + // Scan through the input, searching for hex components, "::" contractions, + // and IPv4 components. + for (int i = begin; /* i <= end */; i++) { + bool is_colon = spec[i] == ':'; + bool is_contraction = is_colon && i < end - 1 && spec[i + 1] == ':'; + + // We reached the end of the current component if we encounter a colon + // (separator between hex components, or start of a contraction), or end of + // input. + if (is_colon || i == end) { + int component_len = i - cur_component_begin; + + // A component should not have more than 4 hex digits. + if (component_len > 4) + return false; + + // Don't allow empty components. + if (component_len == 0) { + // The exception is when contractions appear at beginning of the + // input or at the end of the input. + if (!((is_contraction && i == begin) || (i == end && + parsed->index_of_contraction == parsed->num_hex_components))) + return false; + } + + // Add the hex component we just found to running list. + if (component_len > 0) { + // Can't have more than 8 components! + if (parsed->num_hex_components >= 8) + return false; + + parsed->hex_components[parsed->num_hex_components++] = + Component(cur_component_begin, component_len); + } + } + + if (i == end) + break; // Reached the end of the input, DONE. + + // We found a "::" contraction. + if (is_contraction) { + // There can be at most one contraction in the literal. + if (parsed->index_of_contraction != -1) + return false; + parsed->index_of_contraction = parsed->num_hex_components; + ++i; // Consume the colon we peeked. + } + + if (is_colon) { + // Colons are separators between components, keep track of where the + // current component started (after this colon). + cur_component_begin = i + 1; + } else { + if (static_cast<UCHAR>(spec[i]) >= 0x80) + return false; // Not ASCII. + + if (!IsHexChar(static_cast<unsigned char>(spec[i]))) { + // Regular components are hex numbers. It is also possible for + // a component to be an IPv4 address in dotted form. + if (IsIPv4Char(static_cast<unsigned char>(spec[i]))) { + // Since IPv4 address can only appear at the end, assume the rest + // of the string is an IPv4 address. (We will parse this separately + // later). + parsed->ipv4_component = + Component(cur_component_begin, end - cur_component_begin); + break; + } else { + // The character was neither a hex digit, nor an IPv4 character. + return false; + } + } + } + } + + return true; +} + +// Verifies the parsed IPv6 information, checking that the various components +// add up to the right number of bits (hex components are 16 bits, while +// embedded IPv4 formats are 32 bits, and contractions are placeholdes for +// 16 or more bits). Returns true if sizes match up, false otherwise. On +// success writes the length of the contraction (if any) to +// |out_num_bytes_of_contraction|. +bool CheckIPv6ComponentsSize(const IPv6Parsed& parsed, + int* out_num_bytes_of_contraction) { + // Each group of four hex digits contributes 16 bits. + int num_bytes_without_contraction = parsed.num_hex_components * 2; + + // If an IPv4 address was embedded at the end, it contributes 32 bits. + if (parsed.ipv4_component.is_valid()) + num_bytes_without_contraction += 4; + + // If there was a "::" contraction, its size is going to be: + // MAX([16bits], [128bits] - num_bytes_without_contraction). + int num_bytes_of_contraction = 0; + if (parsed.index_of_contraction != -1) { + num_bytes_of_contraction = 16 - num_bytes_without_contraction; + if (num_bytes_of_contraction < 2) + num_bytes_of_contraction = 2; + } + + // Check that the numbers add up. + if (num_bytes_without_contraction + num_bytes_of_contraction != 16) + return false; + + *out_num_bytes_of_contraction = num_bytes_of_contraction; + return true; +} + +// Converts a hex comonent into a number. This cannot fail since the caller has +// already verified that each character in the string was a hex digit, and +// that there were no more than 4 characters. +template<typename CHAR> +uint16 IPv6HexComponentToNumber(const CHAR* spec, const Component& component) { + DCHECK(component.len <= 4); + + // Copy the hex string into a C-string. + char buf[5]; + for (int i = 0; i < component.len; ++i) + buf[i] = static_cast<char>(spec[component.begin + i]); + buf[component.len] = '\0'; + + // Convert it to a number (overflow is not possible, since with 4 hex + // characters we can at most have a 16 bit number). + return static_cast<uint16>(_strtoui64(buf, NULL, 16)); +} + +// Converts an IPv6 address to a 128-bit number (network byte order), returning +// true on success. False means that the input was not a valid IPv6 address. +template<typename CHAR, typename UCHAR> +bool DoIPv6AddressToNumber(const CHAR* spec, + const Component& host, + unsigned char address[16]) { + // Make sure the component is bounded by '[' and ']'. + int end = host.end(); + if (!host.is_nonempty() || spec[host.begin] != '[' || spec[end - 1] != ']') + return false; + + // Exclude the square brackets. + Component ipv6_comp(host.begin + 1, host.len - 2); + + // Parse the IPv6 address -- identify where all the colon separated hex + // components are, the "::" contraction, and the embedded IPv4 address. + IPv6Parsed ipv6_parsed; + if (!DoParseIPv6<CHAR, UCHAR>(spec, ipv6_comp, &ipv6_parsed)) + return false; + + // Do some basic size checks to make sure that the address doesn't + // specify more than 128 bits or fewer than 128 bits. This also resolves + // how may zero bytes the "::" contraction represents. + int num_bytes_of_contraction; + if (!CheckIPv6ComponentsSize(ipv6_parsed, &num_bytes_of_contraction)) + return false; + + int cur_index_in_address = 0; + + // Loop through each hex components, and contraction in order. + for (int i = 0; i <= ipv6_parsed.num_hex_components; ++i) { + // Append the contraction if it appears before this component. + if (i == ipv6_parsed.index_of_contraction) { + for (int j = 0; j < num_bytes_of_contraction; ++j) + address[cur_index_in_address++] = 0; + } + // Append the hex component's value. + if (i != ipv6_parsed.num_hex_components) { + // Get the 16-bit value for this hex component. + uint16 number = IPv6HexComponentToNumber<CHAR>( + spec, ipv6_parsed.hex_components[i]); + // Append to |address|, in network byte order. + address[cur_index_in_address++] = (number & 0xFF00) >> 8; + address[cur_index_in_address++] = (number & 0x00FF); + } + } + + // If there was an IPv4 section, convert it into a 32-bit number and append + // it to |address|. + if (ipv6_parsed.ipv4_component.is_valid()) { + // Append the 32-bit number to |address|. + int ignored_num_ipv4_components; + if (CanonHostInfo::IPV4 != + IPv4AddressToNumber(spec, + ipv6_parsed.ipv4_component, + &address[cur_index_in_address], + &ignored_num_ipv4_components)) + return false; + } + + return true; +} + +// Searches for the longest sequence of zeros in |address|, and writes the +// range into |contraction_range|. The run of zeros must be at least 16 bits, +// and if there is a tie the first is chosen. +void ChooseIPv6ContractionRange(const unsigned char address[16], + Component* contraction_range) { + // The longest run of zeros in |address| seen so far. + Component max_range; + + // The current run of zeros in |address| being iterated over. + Component cur_range; + + for (int i = 0; i < 16; i += 2) { + // Test for 16 bits worth of zero. + bool is_zero = (address[i] == 0 && address[i + 1] == 0); + + if (is_zero) { + // Add the zero to the current range (or start a new one). + if (!cur_range.is_valid()) + cur_range = Component(i, 0); + cur_range.len += 2; + } + + if (!is_zero || i == 14) { + // Just completed a run of zeros. If the run is greater than 16 bits, + // it is a candidate for the contraction. + if (cur_range.len > 2 && cur_range.len > max_range.len) { + max_range = cur_range; + } + cur_range.reset(); + } + } + *contraction_range = max_range; +} + +// Return true if we've made a final IPV6/BROKEN decision, false if the result +// is NEUTRAL, and we could use a second opinion. +template<typename CHAR, typename UCHAR> +bool DoCanonicalizeIPv6Address(const CHAR* spec, + const Component& host, + CanonOutput* output, + CanonHostInfo* host_info) { + // Turn the IP address into a 128 bit number. + if (!IPv6AddressToNumber(spec, host, host_info->address)) { + // If it's not an IPv6 address, scan for characters that should *only* + // exist in an IPv6 address. + for (int i = host.begin; i < host.end(); i++) { + switch (spec[i]) { + case '[': + case ']': + case ':': + host_info->family = CanonHostInfo::BROKEN; + return true; + } + } + + // No invalid characters. Could still be IPv4 or a hostname. + host_info->family = CanonHostInfo::NEUTRAL; + return false; + } + + host_info->out_host.begin = output->length(); + output->push_back('['); + AppendIPv6Address(host_info->address, output); + output->push_back(']'); + host_info->out_host.len = output->length() - host_info->out_host.begin; + + host_info->family = CanonHostInfo::IPV6; + return true; +} + +} // namespace + +void AppendIPv4Address(const unsigned char address[4], CanonOutput* output) { + for (int i = 0; i < 4; i++) { + char str[16]; + _itoa_s(address[i], str, 10); + + for (int ch = 0; str[ch] != 0; ch++) + output->push_back(str[ch]); + + if (i != 3) + output->push_back('.'); + } +} + +void AppendIPv6Address(const unsigned char address[16], CanonOutput* output) { + // We will output the address according to the rules in: + // http://tools.ietf.org/html/draft-kawamura-ipv6-text-representation-01#section-4 + + // Start by finding where to place the "::" contraction (if any). + Component contraction_range; + ChooseIPv6ContractionRange(address, &contraction_range); + + for (int i = 0; i <= 14;) { + // We check 2 bytes at a time, from bytes (0, 1) to (14, 15), inclusive. + DCHECK(i % 2 == 0); + if (i == contraction_range.begin && contraction_range.len > 0) { + // Jump over the contraction. + if (i == 0) + output->push_back(':'); + output->push_back(':'); + i = contraction_range.end(); + } else { + // Consume the next 16 bits from |address|. + int x = address[i] << 8 | address[i + 1]; + + i += 2; + + // Stringify the 16 bit number (at most requires 4 hex digits). + char str[5]; + _itoa_s(x, str, 16); + for (int ch = 0; str[ch] != 0; ++ch) + output->push_back(str[ch]); + + // Put a colon after each number, except the last. + if (i < 16) + output->push_back(':'); + } + } +} + +bool FindIPv4Components(const char* spec, + const Component& host, + Component components[4]) { + return DoFindIPv4Components<char, unsigned char>(spec, host, components); +} + +bool FindIPv4Components(const base::char16* spec, + const Component& host, + Component components[4]) { + return DoFindIPv4Components<base::char16, base::char16>( + spec, host, components); +} + +void CanonicalizeIPAddress(const char* spec, + const Component& host, + CanonOutput* output, + CanonHostInfo* host_info) { + if (DoCanonicalizeIPv4Address<char, unsigned char>( + spec, host, output, host_info)) + return; + if (DoCanonicalizeIPv6Address<char, unsigned char>( + spec, host, output, host_info)) + return; +} + +void CanonicalizeIPAddress(const base::char16* spec, + const Component& host, + CanonOutput* output, + CanonHostInfo* host_info) { + if (DoCanonicalizeIPv4Address<base::char16, base::char16>( + spec, host, output, host_info)) + return; + if (DoCanonicalizeIPv6Address<base::char16, base::char16>( + spec, host, output, host_info)) + return; +} + +CanonHostInfo::Family IPv4AddressToNumber(const char* spec, + const Component& host, + unsigned char address[4], + int* num_ipv4_components) { + return DoIPv4AddressToNumber<char>(spec, host, address, num_ipv4_components); +} + +CanonHostInfo::Family IPv4AddressToNumber(const base::char16* spec, + const Component& host, + unsigned char address[4], + int* num_ipv4_components) { + return DoIPv4AddressToNumber<base::char16>( + spec, host, address, num_ipv4_components); +} + +bool IPv6AddressToNumber(const char* spec, + const Component& host, + unsigned char address[16]) { + return DoIPv6AddressToNumber<char, unsigned char>(spec, host, address); +} + +bool IPv6AddressToNumber(const base::char16* spec, + const Component& host, + unsigned char address[16]) { + return DoIPv6AddressToNumber<base::char16, base::char16>(spec, host, address); +} + +} // namespace url
diff --git a/url_canon_ip.h b/url_canon_ip.h new file mode 100644 index 0000000..19ecfdb --- /dev/null +++ b/url_canon_ip.h
@@ -0,0 +1,82 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_CANON_IP_H_ +#define URL_URL_CANON_IP_H_ + +#include "base/strings/string16.h" +#include "url/url_canon.h" +#include "url/url_export.h" +#include "url/url_parse.h" + +namespace url { + +// Writes the given IPv4 address to |output|. +URL_EXPORT void AppendIPv4Address(const unsigned char address[4], + CanonOutput* output); + +// Writes the given IPv6 address to |output|. +URL_EXPORT void AppendIPv6Address(const unsigned char address[16], + CanonOutput* output); + +// Searches the host name for the portions of the IPv4 address. On success, +// each component will be placed into |components| and it will return true. +// It will return false if the host can not be separated as an IPv4 address +// or if there are any non-7-bit characters or other characters that can not +// be in an IP address. (This is important so we fail as early as possible for +// common non-IP hostnames.) +// +// Not all components may exist. If there are only 3 components, for example, +// the last one will have a length of -1 or 0 to indicate it does not exist. +// +// Note that many platform's inet_addr will ignore everything after a space +// in certain curcumstances if the stuff before the space looks like an IP +// address. IE6 is included in this. We do NOT handle this case. In many cases, +// the browser's canonicalization will get run before this which converts +// spaces to %20 (in the case of IE7) or rejects them (in the case of +// Mozilla), so this code path never gets hit. Our host canonicalization will +// notice these spaces and escape them, which will make IP address finding +// fail. This seems like better behavior than stripping after a space. +URL_EXPORT bool FindIPv4Components(const char* spec, + const Component& host, + Component components[4]); +URL_EXPORT bool FindIPv4Components(const base::char16* spec, + const Component& host, + Component components[4]); + +// Converts an IPv4 address to a 32-bit number (network byte order). +// +// Possible return values: +// IPV4 - IPv4 address was successfully parsed. +// BROKEN - Input was formatted like an IPv4 address, but overflow occurred +// during parsing. +// NEUTRAL - Input couldn't possibly be interpreted as an IPv4 address. +// It might be an IPv6 address, or a hostname. +// +// On success, |num_ipv4_components| will be populated with the number of +// components in the IPv4 address. +URL_EXPORT CanonHostInfo::Family IPv4AddressToNumber(const char* spec, + const Component& host, + unsigned char address[4], + int* num_ipv4_components); +URL_EXPORT CanonHostInfo::Family IPv4AddressToNumber(const base::char16* spec, + const Component& host, + unsigned char address[4], + int* num_ipv4_components); + +// Converts an IPv6 address to a 128-bit number (network byte order), returning +// true on success. False means that the input was not a valid IPv6 address. +// +// NOTE that |host| is expected to be surrounded by square brackets. +// i.e. "[::1]" rather than "::1". +URL_EXPORT bool IPv6AddressToNumber(const char* spec, + const Component& host, + unsigned char address[16]); +URL_EXPORT bool IPv6AddressToNumber(const base::char16* spec, + const Component& host, + unsigned char address[16]); + +} // namespace url + +#endif // URL_URL_CANON_IP_H_
diff --git a/url_canon_mailtourl.cc b/url_canon_mailtourl.cc new file mode 100644 index 0000000..7c48b95 --- /dev/null +++ b/url_canon_mailtourl.cc
@@ -0,0 +1,110 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Functions for canonicalizing "mailto:" URLs. + +#include "url/url_canon.h" +#include "url/url_canon_internal.h" +#include "url/url_file.h" +#include "url/url_parse_internal.h" + +namespace url { + +namespace { + +template <typename CHAR, typename UCHAR> +bool DoCanonicalizeMailtoURL(const URLComponentSource<CHAR>& source, + const Parsed& parsed, + CanonOutput* output, + Parsed* new_parsed) { + // mailto: only uses {scheme, path, query} -- clear the rest. + new_parsed->username = Component(); + new_parsed->password = Component(); + new_parsed->host = Component(); + new_parsed->port = Component(); + new_parsed->ref = Component(); + + // Scheme (known, so we don't bother running it through the more + // complicated scheme canonicalizer). + new_parsed->scheme.begin = output->length(); + output->Append("mailto:", 7); + new_parsed->scheme.len = 6; + + bool success = true; + + // Path + if (parsed.path.is_valid()) { + new_parsed->path.begin = output->length(); + + // Copy the path using path URL's more lax escaping rules. + // We convert to UTF-8 and escape non-ASCII, but leave all + // ASCII characters alone. + int end = parsed.path.end(); + for (int i = parsed.path.begin; i < end; ++i) { + UCHAR uch = static_cast<UCHAR>(source.path[i]); + if (uch < 0x20 || uch >= 0x80) + success &= AppendUTF8EscapedChar(source.path, &i, end, output); + else + output->push_back(static_cast<char>(uch)); + } + + new_parsed->path.len = output->length() - new_parsed->path.begin; + } else { + // No path at all + new_parsed->path.reset(); + } + + // Query -- always use the default utf8 charset converter. + CanonicalizeQuery(source.query, parsed.query, NULL, + output, &new_parsed->query); + + return success; +} + +} // namespace + +bool CanonicalizeMailtoURL(const char* spec, + int spec_len, + const Parsed& parsed, + CanonOutput* output, + Parsed* new_parsed) { + return DoCanonicalizeMailtoURL<char, unsigned char>( + URLComponentSource<char>(spec), parsed, output, new_parsed); +} + +bool CanonicalizeMailtoURL(const base::char16* spec, + int spec_len, + const Parsed& parsed, + CanonOutput* output, + Parsed* new_parsed) { + return DoCanonicalizeMailtoURL<base::char16, base::char16>( + URLComponentSource<base::char16>(spec), parsed, output, new_parsed); +} + +bool ReplaceMailtoURL(const char* base, + const Parsed& base_parsed, + const Replacements<char>& replacements, + CanonOutput* output, + Parsed* new_parsed) { + URLComponentSource<char> source(base); + Parsed parsed(base_parsed); + SetupOverrideComponents(base, replacements, &source, &parsed); + return DoCanonicalizeMailtoURL<char, unsigned char>( + source, parsed, output, new_parsed); +} + +bool ReplaceMailtoURL(const char* base, + const Parsed& base_parsed, + const Replacements<base::char16>& replacements, + CanonOutput* output, + Parsed* new_parsed) { + RawCanonOutput<1024> utf8; + URLComponentSource<char> source(base); + Parsed parsed(base_parsed); + SetupUTF16OverrideComponents(base, replacements, &utf8, &source, &parsed); + return DoCanonicalizeMailtoURL<char, unsigned char>( + source, parsed, output, new_parsed); +} + +} // namespace url
diff --git a/url_canon_path.cc b/url_canon_path.cc new file mode 100644 index 0000000..ceff689 --- /dev/null +++ b/url_canon_path.cc
@@ -0,0 +1,353 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "base/logging.h" +#include "url/url_canon.h" +#include "url/url_canon_internal.h" +#include "url/url_parse_internal.h" + +namespace url { + +namespace { + +enum CharacterFlags { + // Pass through unchanged, whether escaped or unescaped. This doesn't + // actually set anything so you can't OR it to check, it's just to make the + // table below more clear when neither ESCAPE or UNESCAPE is set. + PASS = 0, + + // This character requires special handling in DoPartialPath. Doing this test + // first allows us to filter out the common cases of regular characters that + // can be directly copied. + SPECIAL = 1, + + // This character must be escaped in the canonical output. Note that all + // escaped chars also have the "special" bit set so that the code that looks + // for this is triggered. Not valid with PASS or ESCAPE + ESCAPE_BIT = 2, + ESCAPE = ESCAPE_BIT | SPECIAL, + + // This character must be unescaped in canonical output. Not valid with + // ESCAPE or PASS. We DON'T set the SPECIAL flag since if we encounter these + // characters unescaped, they should just be copied. + UNESCAPE = 4, + + // This character is disallowed in URLs. Note that the "special" bit is also + // set to trigger handling. + INVALID_BIT = 8, + INVALID = INVALID_BIT | SPECIAL, +}; + +// This table contains one of the above flag values. Note some flags are more +// than one bits because they also turn on the "special" flag. Special is the +// only flag that may be combined with others. +// +// This table is designed to match exactly what IE does with the characters. +// +// Dot is even more special, and the escaped version is handled specially by +// IsDot. Therefore, we don't need the "escape" flag, and even the "unescape" +// bit is never handled (we just need the "special") bit. +const unsigned char kPathCharLookup[0x100] = { +// NULL control chars... + INVALID, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, +// control chars... + ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, +// ' ' ! " # $ % & ' ( ) * + , - . / + ESCAPE, PASS, ESCAPE, ESCAPE, PASS, ESCAPE, PASS, PASS, PASS, PASS, PASS, PASS, PASS, UNESCAPE,SPECIAL, PASS, +// 0 1 2 3 4 5 6 7 8 9 : ; < = > ? + UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,PASS, PASS, ESCAPE, PASS, ESCAPE, ESCAPE, +// @ A B C D E F G H I J K L M N O + PASS, UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE, +// P Q R S T U V W X Y Z [ \ ] ^ _ + UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,PASS, ESCAPE, PASS, ESCAPE, UNESCAPE, +// ` a b c d e f g h i j k l m n o + ESCAPE, UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE, +// p q r s t u v w x y z { | } ~ <NBSP> + UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,UNESCAPE,ESCAPE, ESCAPE, ESCAPE, UNESCAPE,ESCAPE, +// ...all the high-bit characters are escaped + ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, + ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, + ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, + ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, + ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, + ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, + ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, + ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE, ESCAPE}; + +enum DotDisposition { + // The given dot is just part of a filename and is not special. + NOT_A_DIRECTORY, + + // The given dot is the current directory. + DIRECTORY_CUR, + + // The given dot is the first of a double dot that should take us up one. + DIRECTORY_UP +}; + +// When the path resolver finds a dot, this function is called with the +// character following that dot to see what it is. The return value +// indicates what type this dot is (see above). This code handles the case +// where the dot is at the end of the input. +// +// |*consumed_len| will contain the number of characters in the input that +// express what we found. +// +// If the input is "../foo", |after_dot| = 1, |end| = 6, and +// at the end, |*consumed_len| = 2 for the "./" this function consumed. The +// original dot length should be handled by the caller. +template<typename CHAR> +DotDisposition ClassifyAfterDot(const CHAR* spec, int after_dot, + int end, int* consumed_len) { + if (after_dot == end) { + // Single dot at the end. + *consumed_len = 0; + return DIRECTORY_CUR; + } + if (IsURLSlash(spec[after_dot])) { + // Single dot followed by a slash. + *consumed_len = 1; // Consume the slash + return DIRECTORY_CUR; + } + + int second_dot_len = IsDot(spec, after_dot, end); + if (second_dot_len) { + int after_second_dot = after_dot + second_dot_len; + if (after_second_dot == end) { + // Double dot at the end. + *consumed_len = second_dot_len; + return DIRECTORY_UP; + } + if (IsURLSlash(spec[after_second_dot])) { + // Double dot followed by a slash. + *consumed_len = second_dot_len + 1; + return DIRECTORY_UP; + } + } + + // The dots are followed by something else, not a directory. + *consumed_len = 0; + return NOT_A_DIRECTORY; +} + +// Rewinds the output to the previous slash. It is assumed that the output +// ends with a slash and this doesn't count (we call this when we are +// appending directory paths, so the previous path component has and ending +// slash). +// +// This will stop at the first slash (assumed to be at position +// |path_begin_in_output| and not go any higher than that. Some web pages +// do ".." too many times, so we need to handle that brokenness. +// +// It searches for a literal slash rather than including a backslash as well +// because it is run only on the canonical output. +// +// The output is guaranteed to end in a slash when this function completes. +void BackUpToPreviousSlash(int path_begin_in_output, + CanonOutput* output) { + DCHECK(output->length() > 0); + + int i = output->length() - 1; + DCHECK(output->at(i) == '/'); + if (i == path_begin_in_output) + return; // We're at the first slash, nothing to do. + + // Now back up (skipping the trailing slash) until we find another slash. + i--; + while (output->at(i) != '/' && i > path_begin_in_output) + i--; + + // Now shrink the output to just include that last slash we found. + output->set_length(i + 1); +} + +// Appends the given path to the output. It assumes that if the input path +// starts with a slash, it should be copied to the output. If no path has +// already been appended to the output (the case when not resolving +// relative URLs), the path should begin with a slash. +// +// If there are already path components (this mode is used when appending +// relative paths for resolving), it assumes that the output already has +// a trailing slash and that if the input begins with a slash, it should be +// copied to the output. +// +// We do not collapse multiple slashes in a row to a single slash. It seems +// no web browsers do this, and we don't want incompababilities, even though +// it would be correct for most systems. +template<typename CHAR, typename UCHAR> +bool DoPartialPath(const CHAR* spec, + const Component& path, + int path_begin_in_output, + CanonOutput* output) { + int end = path.end(); + + bool success = true; + for (int i = path.begin; i < end; i++) { + UCHAR uch = static_cast<UCHAR>(spec[i]); + if (sizeof(CHAR) > sizeof(char) && uch >= 0x80) { + // We only need to test wide input for having non-ASCII characters. For + // narrow input, we'll always just use the lookup table. We don't try to + // do anything tricky with decoding/validating UTF-8. This function will + // read one or two UTF-16 characters and append the output as UTF-8. This + // call will be removed in 8-bit mode. + success &= AppendUTF8EscapedChar(spec, &i, end, output); + } else { + // Normal ASCII character or 8-bit input, use the lookup table. + unsigned char out_ch = static_cast<unsigned char>(uch); + unsigned char flags = kPathCharLookup[out_ch]; + if (flags & SPECIAL) { + // Needs special handling of some sort. + int dotlen; + if ((dotlen = IsDot(spec, i, end)) > 0) { + // See if this dot was preceeded by a slash in the output. We + // assume that when canonicalizing paths, they will always + // start with a slash and not a dot, so we don't have to + // bounds check the output. + // + // Note that we check this in the case of dots so we don't have to + // special case slashes. Since slashes are much more common than + // dots, this actually increases performance measurably (though + // slightly). + DCHECK(output->length() > path_begin_in_output); + if (output->length() > path_begin_in_output && + output->at(output->length() - 1) == '/') { + // Slash followed by a dot, check to see if this is means relative + int consumed_len; + switch (ClassifyAfterDot<CHAR>(spec, i + dotlen, end, + &consumed_len)) { + case NOT_A_DIRECTORY: + // Copy the dot to the output, it means nothing special. + output->push_back('.'); + i += dotlen - 1; + break; + case DIRECTORY_CUR: // Current directory, just skip the input. + i += dotlen + consumed_len - 1; + break; + case DIRECTORY_UP: + BackUpToPreviousSlash(path_begin_in_output, output); + i += dotlen + consumed_len - 1; + break; + } + } else { + // This dot is not preceeded by a slash, it is just part of some + // file name. + output->push_back('.'); + i += dotlen - 1; + } + + } else if (out_ch == '\\') { + // Convert backslashes to forward slashes + output->push_back('/'); + + } else if (out_ch == '%') { + // Handle escape sequences. + unsigned char unescaped_value; + if (DecodeEscaped(spec, &i, end, &unescaped_value)) { + // Valid escape sequence, see if we keep, reject, or unescape it. + char unescaped_flags = kPathCharLookup[unescaped_value]; + + if (unescaped_flags & UNESCAPE) { + // This escaped value shouldn't be escaped, copy it. + output->push_back(unescaped_value); + } else if (unescaped_flags & INVALID_BIT) { + // Invalid escaped character, copy it and remember the error. + output->push_back('%'); + output->push_back(static_cast<char>(spec[i - 1])); + output->push_back(static_cast<char>(spec[i])); + success = false; + } else { + // Valid escaped character but we should keep it escaped. We + // don't want to change the case of any hex letters in case + // the server is sensitive to that, so we just copy the two + // characters without checking (DecodeEscape will have advanced + // to the last character of the pair). + output->push_back('%'); + output->push_back(static_cast<char>(spec[i - 1])); + output->push_back(static_cast<char>(spec[i])); + } + } else { + // Invalid escape sequence. IE7 rejects any URLs with such + // sequences, while Firefox, IE6, and Safari all pass it through + // unchanged. We are more permissive unlike IE7. I don't think this + // can cause significant problems, if it does, we should change + // to be more like IE7. + output->push_back('%'); + } + + } else if (flags & INVALID_BIT) { + // For NULLs, etc. fail. + AppendEscapedChar(out_ch, output); + success = false; + + } else if (flags & ESCAPE_BIT) { + // This character should be escaped. + AppendEscapedChar(out_ch, output); + } + } else { + // Nothing special about this character, just append it. + output->push_back(out_ch); + } + } + } + return success; +} + +template<typename CHAR, typename UCHAR> +bool DoPath(const CHAR* spec, + const Component& path, + CanonOutput* output, + Component* out_path) { + bool success = true; + out_path->begin = output->length(); + if (path.len > 0) { + // Write out an initial slash if the input has none. If we just parse a URL + // and then canonicalize it, it will of course have a slash already. This + // check is for the replacement and relative URL resolving cases of file + // URLs. + if (!IsURLSlash(spec[path.begin])) + output->push_back('/'); + + success = DoPartialPath<CHAR, UCHAR>(spec, path, out_path->begin, output); + } else { + // No input, canonical path is a slash. + output->push_back('/'); + } + out_path->len = output->length() - out_path->begin; + return success; +} + +} // namespace + +bool CanonicalizePath(const char* spec, + const Component& path, + CanonOutput* output, + Component* out_path) { + return DoPath<char, unsigned char>(spec, path, output, out_path); +} + +bool CanonicalizePath(const base::char16* spec, + const Component& path, + CanonOutput* output, + Component* out_path) { + return DoPath<base::char16, base::char16>(spec, path, output, out_path); +} + +bool CanonicalizePartialPath(const char* spec, + const Component& path, + int path_begin_in_output, + CanonOutput* output) { + return DoPartialPath<char, unsigned char>(spec, path, path_begin_in_output, + output); +} + +bool CanonicalizePartialPath(const base::char16* spec, + const Component& path, + int path_begin_in_output, + CanonOutput* output) { + return DoPartialPath<base::char16, base::char16>(spec, path, + path_begin_in_output, + output); +} + +} // namespace url
diff --git a/url_canon_pathurl.cc b/url_canon_pathurl.cc new file mode 100644 index 0000000..e81a4af --- /dev/null +++ b/url_canon_pathurl.cc
@@ -0,0 +1,121 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Functions for canonicalizing "path" URLs. Not to be confused with the path +// of a URL, these are URLs that have no authority section, only a path. For +// example, "javascript:" and "data:". + +#include "url/url_canon.h" +#include "url/url_canon_internal.h" + +namespace url { + +namespace { + +// Canonicalize the given |component| from |source| into |output| and +// |new_component|. If |separator| is non-zero, it is pre-pended to |ouput| +// prior to the canonicalized component; i.e. for the '?' or '#' characters. +template<typename CHAR, typename UCHAR> +bool DoCanonicalizePathComponent(const CHAR* source, + const Component& component, + CHAR seperator, + CanonOutput* output, + Component* new_component) { + bool success = true; + if (component.is_valid()) { + if (seperator) + output->push_back(seperator); + // Copy the path using path URL's more lax escaping rules (think for + // javascript:). We convert to UTF-8 and escape non-ASCII, but leave all + // ASCII characters alone. This helps readability of JavaStript. + new_component->begin = output->length(); + int end = component.end(); + for (int i = component.begin; i < end; i++) { + UCHAR uch = static_cast<UCHAR>(source[i]); + if (uch < 0x20 || uch >= 0x80) + success &= AppendUTF8EscapedChar(source, &i, end, output); + else + output->push_back(static_cast<char>(uch)); + } + new_component->len = output->length() - new_component->begin; + } else { + // Empty part. + new_component->reset(); + } + return success; +} + +template <typename CHAR, typename UCHAR> +bool DoCanonicalizePathURL(const URLComponentSource<CHAR>& source, + const Parsed& parsed, + CanonOutput* output, + Parsed* new_parsed) { + // Scheme: this will append the colon. + bool success = CanonicalizeScheme(source.scheme, parsed.scheme, + output, &new_parsed->scheme); + + // We assume there's no authority for path URLs. Note that hosts should never + // have -1 length. + new_parsed->username.reset(); + new_parsed->password.reset(); + new_parsed->host.reset(); + new_parsed->port.reset(); + // We allow path URLs to have the path, query and fragment components, but we + // will canonicalize each of the via the weaker path URL rules. + success &= DoCanonicalizePathComponent<CHAR, UCHAR>( + source.path, parsed.path, 0, output, &new_parsed->path); + success &= DoCanonicalizePathComponent<CHAR, UCHAR>( + source.query, parsed.query, '?', output, &new_parsed->query); + success &= DoCanonicalizePathComponent<CHAR, UCHAR>( + source.ref, parsed.ref, '#', output, &new_parsed->ref); + + return success; +} + +} // namespace + +bool CanonicalizePathURL(const char* spec, + int spec_len, + const Parsed& parsed, + CanonOutput* output, + Parsed* new_parsed) { + return DoCanonicalizePathURL<char, unsigned char>( + URLComponentSource<char>(spec), parsed, output, new_parsed); +} + +bool CanonicalizePathURL(const base::char16* spec, + int spec_len, + const Parsed& parsed, + CanonOutput* output, + Parsed* new_parsed) { + return DoCanonicalizePathURL<base::char16, base::char16>( + URLComponentSource<base::char16>(spec), parsed, output, new_parsed); +} + +bool ReplacePathURL(const char* base, + const Parsed& base_parsed, + const Replacements<char>& replacements, + CanonOutput* output, + Parsed* new_parsed) { + URLComponentSource<char> source(base); + Parsed parsed(base_parsed); + SetupOverrideComponents(base, replacements, &source, &parsed); + return DoCanonicalizePathURL<char, unsigned char>( + source, parsed, output, new_parsed); +} + +bool ReplacePathURL(const char* base, + const Parsed& base_parsed, + const Replacements<base::char16>& replacements, + CanonOutput* output, + Parsed* new_parsed) { + RawCanonOutput<1024> utf8; + URLComponentSource<char> source(base); + Parsed parsed(base_parsed); + SetupUTF16OverrideComponents(base, replacements, &utf8, &source, &parsed); + return DoCanonicalizePathURL<char, unsigned char>( + source, parsed, output, new_parsed); +} + +} // namespace url
diff --git a/url_canon_query.cc b/url_canon_query.cc new file mode 100644 index 0000000..5494ddf --- /dev/null +++ b/url_canon_query.cc
@@ -0,0 +1,164 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "url/url_canon.h" +#include "url/url_canon_internal.h" + +// Query canonicalization in IE +// ---------------------------- +// IE is very permissive for query parameters specified in links on the page +// (in contrast to links that it constructs itself based on form data). It does +// not unescape any character. It does not reject any escape sequence (be they +// invalid like "%2y" or freaky like %00). +// +// IE only escapes spaces and nothing else. Embedded NULLs, tabs (0x09), +// LF (0x0a), and CR (0x0d) are removed (this probably happens at an earlier +// layer since they are removed from all portions of the URL). All other +// characters are passed unmodified. Invalid UTF-16 sequences are preserved as +// well, with each character in the input being converted to UTF-8. It is the +// server's job to make sense of this invalid query. +// +// Invalid multibyte sequences (for example, invalid UTF-8 on a UTF-8 page) +// are converted to the invalid character and sent as unescaped UTF-8 (0xef, +// 0xbf, 0xbd). This may not be canonicalization, the parser may generate these +// strings before the URL handler ever sees them. +// +// Our query canonicalization +// -------------------------- +// We escape all non-ASCII characters and control characters, like Firefox. +// This is more conformant to the URL spec, and there do not seem to be many +// problems relating to Firefox's behavior. +// +// Like IE, we will never unescape (although the application may want to try +// unescaping to present the user with a more understandable URL). We will +// replace all invalid sequences (including invalid UTF-16 sequences, which IE +// doesn't) with the "invalid character," and we will escape it. + +namespace url { + +namespace { + +// Returns true if the characters starting at |begin| and going until |end| +// (non-inclusive) are all representable in 7-bits. +template<typename CHAR, typename UCHAR> +bool IsAllASCII(const CHAR* spec, const Component& query) { + int end = query.end(); + for (int i = query.begin; i < end; i++) { + if (static_cast<UCHAR>(spec[i]) >= 0x80) + return false; + } + return true; +} + +// Appends the given string to the output, escaping characters that do not +// match the given |type| in SharedCharTypes. This version will accept 8 or 16 +// bit characters, but assumes that they have only 7-bit values. It also assumes +// that all UTF-8 values are correct, so doesn't bother checking +template<typename CHAR> +void AppendRaw8BitQueryString(const CHAR* source, int length, + CanonOutput* output) { + for (int i = 0; i < length; i++) { + if (!IsQueryChar(static_cast<unsigned char>(source[i]))) + AppendEscapedChar(static_cast<unsigned char>(source[i]), output); + else // Doesn't need escaping. + output->push_back(static_cast<char>(source[i])); + } +} + +// Runs the converter on the given UTF-8 input. Since the converter expects +// UTF-16, we have to convert first. The converter must be non-NULL. +void RunConverter(const char* spec, + const Component& query, + CharsetConverter* converter, + CanonOutput* output) { + // This function will replace any misencoded values with the invalid + // character. This is what we want so we don't have to check for error. + RawCanonOutputW<1024> utf16; + ConvertUTF8ToUTF16(&spec[query.begin], query.len, &utf16); + converter->ConvertFromUTF16(utf16.data(), utf16.length(), output); +} + +// Runs the converter with the given UTF-16 input. We don't have to do +// anything, but this overriddden function allows us to use the same code +// for both UTF-8 and UTF-16 input. +void RunConverter(const base::char16* spec, + const Component& query, + CharsetConverter* converter, + CanonOutput* output) { + converter->ConvertFromUTF16(&spec[query.begin], query.len, output); +} + +template<typename CHAR, typename UCHAR> +void DoConvertToQueryEncoding(const CHAR* spec, + const Component& query, + CharsetConverter* converter, + CanonOutput* output) { + if (IsAllASCII<CHAR, UCHAR>(spec, query)) { + // Easy: the input can just appended with no character set conversions. + AppendRaw8BitQueryString(&spec[query.begin], query.len, output); + + } else { + // Harder: convert to the proper encoding first. + if (converter) { + // Run the converter to get an 8-bit string, then append it, escaping + // necessary values. + RawCanonOutput<1024> eight_bit; + RunConverter(spec, query, converter, &eight_bit); + AppendRaw8BitQueryString(eight_bit.data(), eight_bit.length(), output); + + } else { + // No converter, do our own UTF-8 conversion. + AppendStringOfType(&spec[query.begin], query.len, CHAR_QUERY, output); + } + } +} + +template<typename CHAR, typename UCHAR> +void DoCanonicalizeQuery(const CHAR* spec, + const Component& query, + CharsetConverter* converter, + CanonOutput* output, + Component* out_query) { + if (query.len < 0) { + *out_query = Component(); + return; + } + + output->push_back('?'); + out_query->begin = output->length(); + + DoConvertToQueryEncoding<CHAR, UCHAR>(spec, query, converter, output); + + out_query->len = output->length() - out_query->begin; +} + +} // namespace + +void CanonicalizeQuery(const char* spec, + const Component& query, + CharsetConverter* converter, + CanonOutput* output, + Component* out_query) { + DoCanonicalizeQuery<char, unsigned char>(spec, query, converter, + output, out_query); +} + +void CanonicalizeQuery(const base::char16* spec, + const Component& query, + CharsetConverter* converter, + CanonOutput* output, + Component* out_query) { + DoCanonicalizeQuery<base::char16, base::char16>(spec, query, converter, + output, out_query); +} + +void ConvertUTF16ToQueryEncoding(const base::char16* input, + const Component& query, + CharsetConverter* converter, + CanonOutput* output) { + DoConvertToQueryEncoding<base::char16, base::char16>(input, query, + converter, output); +} + +} // namespace url
diff --git a/url_canon_relative.cc b/url_canon_relative.cc new file mode 100644 index 0000000..9436245 --- /dev/null +++ b/url_canon_relative.cc
@@ -0,0 +1,560 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Canonicalizer functions for working with and resolving relative URLs. + +#include "base/logging.h" +#include "url/url_canon.h" +#include "url/url_canon_internal.h" +#include "url/url_constants.h" +#include "url/url_file.h" +#include "url/url_parse_internal.h" +#include "url/url_util_internal.h" + +namespace url { + +namespace { + +// Firefox does a case-sensitive compare (which is probably wrong--Mozilla bug +// 379034), whereas IE is case-insensetive. +// +// We choose to be more permissive like IE. We don't need to worry about +// unescaping or anything here: neither IE or Firefox allow this. We also +// don't have to worry about invalid scheme characters since we are comparing +// against the canonical scheme of the base. +// +// The base URL should always be canonical, therefore is ASCII. +template<typename CHAR> +bool AreSchemesEqual(const char* base, + const Component& base_scheme, + const CHAR* cmp, + const Component& cmp_scheme) { + if (base_scheme.len != cmp_scheme.len) + return false; + for (int i = 0; i < base_scheme.len; i++) { + // We assume the base is already canonical, so we don't have to + // canonicalize it. + if (CanonicalSchemeChar(cmp[cmp_scheme.begin + i]) != + base[base_scheme.begin + i]) + return false; + } + return true; +} + +#ifdef WIN32 + +// Here, we also allow Windows paths to be represented as "/C:/" so we can be +// consistent about URL paths beginning with slashes. This function is like +// DoesBeginWindowsDrivePath except that it also requires a slash at the +// beginning. +template<typename CHAR> +bool DoesBeginSlashWindowsDriveSpec(const CHAR* spec, int start_offset, + int spec_len) { + if (start_offset >= spec_len) + return false; + return IsURLSlash(spec[start_offset]) && + DoesBeginWindowsDriveSpec(spec, start_offset + 1, spec_len); +} + +#endif // WIN32 + +// See IsRelativeURL in the header file for usage. +template<typename CHAR> +bool DoIsRelativeURL(const char* base, + const Parsed& base_parsed, + const CHAR* url, + int url_len, + bool is_base_hierarchical, + bool* is_relative, + Component* relative_component) { + *is_relative = false; // So we can default later to not relative. + + // Trim whitespace and construct a new range for the substring. + int begin = 0; + TrimURL(url, &begin, &url_len); + if (begin >= url_len) { + // Empty URLs are relative, but do nothing. + *relative_component = Component(begin, 0); + *is_relative = true; + return true; + } + +#ifdef WIN32 + // We special case paths like "C:\foo" so they can link directly to the + // file on Windows (IE compatability). The security domain stuff should + // prevent a link like this from actually being followed if its on a + // web page. + // + // We treat "C:/foo" as an absolute URL. We can go ahead and treat "/c:/" + // as relative, as this will just replace the path when the base scheme + // is a file and the answer will still be correct. + // + // We require strict backslashes when detecting UNC since two forward + // shashes should be treated a a relative URL with a hostname. + if (DoesBeginWindowsDriveSpec(url, begin, url_len) || + DoesBeginUNCPath(url, begin, url_len, true)) + return true; +#endif // WIN32 + + // See if we've got a scheme, if not, we know this is a relative URL. + // BUT: Just because we have a scheme, doesn't make it absolute. + // "http:foo.html" is a relative URL with path "foo.html". If the scheme is + // empty, we treat it as relative (":foo") like IE does. + Component scheme; + const bool scheme_is_empty = + !ExtractScheme(url, url_len, &scheme) || scheme.len == 0; + if (scheme_is_empty) { + if (url[begin] == '#') { + // |url| is a bare fragement (e.g. "#foo"). This can be resolved against + // any base. Fall-through. + } else if (!is_base_hierarchical) { + // Don't allow relative URLs if the base scheme doesn't support it. + return false; + } + + *relative_component = MakeRange(begin, url_len); + *is_relative = true; + return true; + } + + // If the scheme isn't valid, then it's relative. + int scheme_end = scheme.end(); + for (int i = scheme.begin; i < scheme_end; i++) { + if (!CanonicalSchemeChar(url[i])) { + if (!is_base_hierarchical) { + // Don't allow relative URLs if the base scheme doesn't support it. + return false; + } + *relative_component = MakeRange(begin, url_len); + *is_relative = true; + return true; + } + } + + // If the scheme is not the same, then we can't count it as relative. + if (!AreSchemesEqual(base, base_parsed.scheme, url, scheme)) + return true; + + // When the scheme that they both share is not hierarchical, treat the + // incoming scheme as absolute (this way with the base of "data:foo", + // "data:bar" will be reported as absolute. + if (!is_base_hierarchical) + return true; + + int colon_offset = scheme.end(); + + // If it's a filesystem URL, the only valid way to make it relative is not to + // supply a scheme. There's no equivalent to e.g. http:index.html. + if (CompareSchemeComponent(url, scheme, kFileSystemScheme)) + return true; + + // ExtractScheme guarantees that the colon immediately follows what it + // considers to be the scheme. CountConsecutiveSlashes will handle the + // case where the begin offset is the end of the input. + int num_slashes = CountConsecutiveSlashes(url, colon_offset + 1, url_len); + + if (num_slashes == 0 || num_slashes == 1) { + // No slashes means it's a relative path like "http:foo.html". One slash + // is an absolute path. "http:/home/foo.html" + *is_relative = true; + *relative_component = MakeRange(colon_offset + 1, url_len); + return true; + } + + // Two or more slashes after the scheme we treat as absolute. + return true; +} + +// Copies all characters in the range [begin, end) of |spec| to the output, +// up until and including the last slash. There should be a slash in the +// range, if not, nothing will be copied. +// +// The input is assumed to be canonical, so we search only for exact slashes +// and not backslashes as well. We also know that it's ASCII. +void CopyToLastSlash(const char* spec, + int begin, + int end, + CanonOutput* output) { + // Find the last slash. + int last_slash = -1; + for (int i = end - 1; i >= begin; i--) { + if (spec[i] == '/') { + last_slash = i; + break; + } + } + if (last_slash < 0) + return; // No slash. + + // Copy. + for (int i = begin; i <= last_slash; i++) + output->push_back(spec[i]); +} + +// Copies a single component from the source to the output. This is used +// when resolving relative URLs and a given component is unchanged. Since the +// source should already be canonical, we don't have to do anything special, +// and the input is ASCII. +void CopyOneComponent(const char* source, + const Component& source_component, + CanonOutput* output, + Component* output_component) { + if (source_component.len < 0) { + // This component is not present. + *output_component = Component(); + return; + } + + output_component->begin = output->length(); + int source_end = source_component.end(); + for (int i = source_component.begin; i < source_end; i++) + output->push_back(source[i]); + output_component->len = output->length() - output_component->begin; +} + +#ifdef WIN32 + +// Called on Windows when the base URL is a file URL, this will copy the "C:" +// to the output, if there is a drive letter and if that drive letter is not +// being overridden by the relative URL. Otherwise, do nothing. +// +// It will return the index of the beginning of the next character in the +// base to be processed: if there is a "C:", the slash after it, or if +// there is no drive letter, the slash at the beginning of the path, or +// the end of the base. This can be used as the starting offset for further +// path processing. +template<typename CHAR> +int CopyBaseDriveSpecIfNecessary(const char* base_url, + int base_path_begin, + int base_path_end, + const CHAR* relative_url, + int path_start, + int relative_url_len, + CanonOutput* output) { + if (base_path_begin >= base_path_end) + return base_path_begin; // No path. + + // If the relative begins with a drive spec, don't do anything. The existing + // drive spec in the base will be replaced. + if (DoesBeginWindowsDriveSpec(relative_url, path_start, relative_url_len)) { + return base_path_begin; // Relative URL path is "C:/foo" + } + + // The path should begin with a slash (as all canonical paths do). We check + // if it is followed by a drive letter and copy it. + if (DoesBeginSlashWindowsDriveSpec(base_url, + base_path_begin, + base_path_end)) { + // Copy the two-character drive spec to the output. It will now look like + // "file:///C:" so the rest of it can be treated like a standard path. + output->push_back('/'); + output->push_back(base_url[base_path_begin + 1]); + output->push_back(base_url[base_path_begin + 2]); + return base_path_begin + 3; + } + + return base_path_begin; +} + +#endif // WIN32 + +// A subroutine of DoResolveRelativeURL, this resolves the URL knowning that +// the input is a relative path or less (qyuery or ref). +template<typename CHAR> +bool DoResolveRelativePath(const char* base_url, + const Parsed& base_parsed, + bool base_is_file, + const CHAR* relative_url, + const Component& relative_component, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* out_parsed) { + bool success = true; + + // We know the authority section didn't change, copy it to the output. We + // also know we have a path so can copy up to there. + Component path, query, ref; + ParsePathInternal(relative_url, relative_component, &path, &query, &ref); + // Canonical URLs always have a path, so we can use that offset. + output->Append(base_url, base_parsed.path.begin); + + if (path.len > 0) { + // The path is replaced or modified. + int true_path_begin = output->length(); + + // For file: URLs on Windows, we don't want to treat the drive letter and + // colon as part of the path for relative file resolution when the + // incoming URL does not provide a drive spec. We save the true path + // beginning so we can fix it up after we are done. + int base_path_begin = base_parsed.path.begin; +#ifdef WIN32 + if (base_is_file) { + base_path_begin = CopyBaseDriveSpecIfNecessary( + base_url, base_parsed.path.begin, base_parsed.path.end(), + relative_url, relative_component.begin, relative_component.end(), + output); + // Now the output looks like either "file://" or "file:///C:" + // and we can start appending the rest of the path. |base_path_begin| + // points to the character in the base that comes next. + } +#endif // WIN32 + + if (IsURLSlash(relative_url[path.begin])) { + // Easy case: the path is an absolute path on the server, so we can + // just replace everything from the path on with the new versions. + // Since the input should be canonical hierarchical URL, we should + // always have a path. + success &= CanonicalizePath(relative_url, path, + output, &out_parsed->path); + } else { + // Relative path, replace the query, and reference. We take the + // original path with the file part stripped, and append the new path. + // The canonicalizer will take care of resolving ".." and "." + int path_begin = output->length(); + CopyToLastSlash(base_url, base_path_begin, base_parsed.path.end(), + output); + success &= CanonicalizePartialPath(relative_url, path, path_begin, + output); + out_parsed->path = MakeRange(path_begin, output->length()); + + // Copy the rest of the stuff after the path from the relative path. + } + + // Finish with the query and reference part (these can't fail). + CanonicalizeQuery(relative_url, query, query_converter, + output, &out_parsed->query); + CanonicalizeRef(relative_url, ref, output, &out_parsed->ref); + + // Fix the path beginning to add back the "C:" we may have written above. + out_parsed->path = MakeRange(true_path_begin, out_parsed->path.end()); + return success; + } + + // If we get here, the path is unchanged: copy to output. + CopyOneComponent(base_url, base_parsed.path, output, &out_parsed->path); + + if (query.is_valid()) { + // Just the query specified, replace the query and reference (ignore + // failures for refs) + CanonicalizeQuery(relative_url, query, query_converter, + output, &out_parsed->query); + CanonicalizeRef(relative_url, ref, output, &out_parsed->ref); + return success; + } + + // If we get here, the query is unchanged: copy to output. Note that the + // range of the query parameter doesn't include the question mark, so we + // have to add it manually if there is a component. + if (base_parsed.query.is_valid()) + output->push_back('?'); + CopyOneComponent(base_url, base_parsed.query, output, &out_parsed->query); + + if (ref.is_valid()) { + // Just the reference specified: replace it (ignoring failures). + CanonicalizeRef(relative_url, ref, output, &out_parsed->ref); + return success; + } + + // We should always have something to do in this function, the caller checks + // that some component is being replaced. + DCHECK(false) << "Not reached"; + return success; +} + +// Resolves a relative URL that contains a host. Typically, these will +// be of the form "//www.google.com/foo/bar?baz#ref" and the only thing which +// should be kept from the original URL is the scheme. +template<typename CHAR> +bool DoResolveRelativeHost(const char* base_url, + const Parsed& base_parsed, + const CHAR* relative_url, + const Component& relative_component, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* out_parsed) { + // Parse the relative URL, just like we would for anything following a + // scheme. + Parsed relative_parsed; // Everything but the scheme is valid. + ParseAfterScheme(relative_url, relative_component.end(), + relative_component.begin, &relative_parsed); + + // Now we can just use the replacement function to replace all the necessary + // parts of the old URL with the new one. + Replacements<CHAR> replacements; + replacements.SetUsername(relative_url, relative_parsed.username); + replacements.SetPassword(relative_url, relative_parsed.password); + replacements.SetHost(relative_url, relative_parsed.host); + replacements.SetPort(relative_url, relative_parsed.port); + replacements.SetPath(relative_url, relative_parsed.path); + replacements.SetQuery(relative_url, relative_parsed.query); + replacements.SetRef(relative_url, relative_parsed.ref); + + return ReplaceStandardURL(base_url, base_parsed, replacements, + query_converter, output, out_parsed); +} + +// Resolves a relative URL that happens to be an absolute file path. Examples +// include: "//hostname/path", "/c:/foo", and "//hostname/c:/foo". +template<typename CHAR> +bool DoResolveAbsoluteFile(const CHAR* relative_url, + const Component& relative_component, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* out_parsed) { + // Parse the file URL. The file URl parsing function uses the same logic + // as we do for determining if the file is absolute, in which case it will + // not bother to look for a scheme. + Parsed relative_parsed; + ParseFileURL(&relative_url[relative_component.begin], relative_component.len, + &relative_parsed); + + return CanonicalizeFileURL(&relative_url[relative_component.begin], + relative_component.len, relative_parsed, + query_converter, output, out_parsed); +} + +// TODO(brettw) treat two slashes as root like Mozilla for FTP? +template<typename CHAR> +bool DoResolveRelativeURL(const char* base_url, + const Parsed& base_parsed, + bool base_is_file, + const CHAR* relative_url, + const Component& relative_component, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* out_parsed) { + // Starting point for our output parsed. We'll fix what we change. + *out_parsed = base_parsed; + + // Sanity check: the input should have a host or we'll break badly below. + // We can only resolve relative URLs with base URLs that have hosts and + // paths (even the default path of "/" is OK). + // + // We allow hosts with no length so we can handle file URLs, for example. + if (base_parsed.path.len <= 0) { + // On error, return the input (resolving a relative URL on a non-relative + // base = the base). + int base_len = base_parsed.Length(); + for (int i = 0; i < base_len; i++) + output->push_back(base_url[i]); + return false; + } + + if (relative_component.len <= 0) { + // Empty relative URL, leave unchanged, only removing the ref component. + int base_len = base_parsed.Length(); + base_len -= base_parsed.ref.len + 1; + out_parsed->ref.reset(); + output->Append(base_url, base_len); + return true; + } + + int num_slashes = CountConsecutiveSlashes( + relative_url, relative_component.begin, relative_component.end()); + +#ifdef WIN32 + // On Windows, two slashes for a file path (regardless of which direction + // they are) means that it's UNC. Two backslashes on any base scheme mean + // that it's an absolute UNC path (we use the base_is_file flag to control + // how strict the UNC finder is). + // + // We also allow Windows absolute drive specs on any scheme (for example + // "c:\foo") like IE does. There must be no preceeding slashes in this + // case (we reject anything like "/c:/foo") because that should be treated + // as a path. For file URLs, we allow any number of slashes since that would + // be setting the path. + // + // This assumes the absolute path resolver handles absolute URLs like this + // properly. DoCanonicalize does this. + int after_slashes = relative_component.begin + num_slashes; + if (DoesBeginUNCPath(relative_url, relative_component.begin, + relative_component.end(), !base_is_file) || + ((num_slashes == 0 || base_is_file) && + DoesBeginWindowsDriveSpec( + relative_url, after_slashes, relative_component.end()))) { + return DoResolveAbsoluteFile(relative_url, relative_component, + query_converter, output, out_parsed); + } +#else + // Other platforms need explicit handling for file: URLs with multiple + // slashes because the generic scheme parsing always extracts a host, but a + // file: URL only has a host if it has exactly 2 slashes. Even if it does + // have a host, we want to use the special host detection logic for file + // URLs provided by DoResolveAbsoluteFile(), as opposed to the generic host + // detection logic, for consistency with parsing file URLs from scratch. + // This also handles the special case where the URL is only slashes, + // since that doesn't have a host part either. + if (base_is_file && + (num_slashes >= 2 || num_slashes == relative_component.len)) { + return DoResolveAbsoluteFile(relative_url, relative_component, + query_converter, output, out_parsed); + } +#endif + + // Any other double-slashes mean that this is relative to the scheme. + if (num_slashes >= 2) { + return DoResolveRelativeHost(base_url, base_parsed, + relative_url, relative_component, + query_converter, output, out_parsed); + } + + // When we get here, we know that the relative URL is on the same host. + return DoResolveRelativePath(base_url, base_parsed, base_is_file, + relative_url, relative_component, + query_converter, output, out_parsed); +} + +} // namespace + +bool IsRelativeURL(const char* base, + const Parsed& base_parsed, + const char* fragment, + int fragment_len, + bool is_base_hierarchical, + bool* is_relative, + Component* relative_component) { + return DoIsRelativeURL<char>( + base, base_parsed, fragment, fragment_len, is_base_hierarchical, + is_relative, relative_component); +} + +bool IsRelativeURL(const char* base, + const Parsed& base_parsed, + const base::char16* fragment, + int fragment_len, + bool is_base_hierarchical, + bool* is_relative, + Component* relative_component) { + return DoIsRelativeURL<base::char16>( + base, base_parsed, fragment, fragment_len, is_base_hierarchical, + is_relative, relative_component); +} + +bool ResolveRelativeURL(const char* base_url, + const Parsed& base_parsed, + bool base_is_file, + const char* relative_url, + const Component& relative_component, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* out_parsed) { + return DoResolveRelativeURL<char>( + base_url, base_parsed, base_is_file, relative_url, + relative_component, query_converter, output, out_parsed); +} + +bool ResolveRelativeURL(const char* base_url, + const Parsed& base_parsed, + bool base_is_file, + const base::char16* relative_url, + const Component& relative_component, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* out_parsed) { + return DoResolveRelativeURL<base::char16>( + base_url, base_parsed, base_is_file, relative_url, + relative_component, query_converter, output, out_parsed); +} + +} // namespace url
diff --git a/url_canon_stdstring.cc b/url_canon_stdstring.cc new file mode 100644 index 0000000..366a2e0 --- /dev/null +++ b/url_canon_stdstring.cc
@@ -0,0 +1,32 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "url/url_canon_stdstring.h" + +namespace url { + +StdStringCanonOutput::StdStringCanonOutput(std::string* str) + : CanonOutput(), str_(str) { + cur_len_ = static_cast<int>(str_->size()); // Append to existing data. + str_->resize(str_->capacity()); + buffer_ = str_->empty() ? NULL : &(*str_)[0]; + buffer_len_ = static_cast<int>(str_->size()); +} + +StdStringCanonOutput::~StdStringCanonOutput() { + // Nothing to do, we don't own the string. +} + +void StdStringCanonOutput::Complete() { + str_->resize(cur_len_); + buffer_len_ = cur_len_; +} + +void StdStringCanonOutput::Resize(int sz) { + str_->resize(sz); + buffer_ = str_->empty() ? NULL : &(*str_)[0]; + buffer_len_ = sz; +} + +} // namespace url
diff --git a/url_canon_stdstring.h b/url_canon_stdstring.h new file mode 100644 index 0000000..e859fe2 --- /dev/null +++ b/url_canon_stdstring.h
@@ -0,0 +1,86 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_CANON_STDSTRING_H_ +#define URL_URL_CANON_STDSTRING_H_ + +// This header file defines a canonicalizer output method class for STL +// strings. Because the canonicalizer tries not to be dependent on the STL, +// we have segregated it here. + +#include <string> + +#include "base/compiler_specific.h" +#include "url/url_canon.h" +#include "url/url_export.h" + +namespace url { + +// Write into a std::string given in the constructor. This object does not own +// the string itself, and the user must ensure that the string stays alive +// throughout the lifetime of this object. +// +// The given string will be appended to; any existing data in the string will +// be preserved. The caller should reserve() the amount of data in the string +// they expect to be written. We will resize if necessary, but that's slow. +// +// Note that when canonicalization is complete, the string will likely have +// unused space at the end because we make the string very big to start out +// with (by |initial_size|). This ends up being important because resize +// operations are slow, and because the base class needs to write directly +// into the buffer. +// +// Therefore, the user should call Complete() before using the string that +// this class wrote into. +class URL_EXPORT StdStringCanonOutput : public CanonOutput { + public: + StdStringCanonOutput(std::string* str); + virtual ~StdStringCanonOutput(); + + // Must be called after writing has completed but before the string is used. + void Complete(); + + virtual void Resize(int sz) OVERRIDE; + + protected: + std::string* str_; +}; + +// An extension of the Replacements class that allows the setters to use +// standard strings. +// +// The strings passed as arguments are not copied and must remain valid until +// this class goes out of scope. +template<typename STR> +class StdStringReplacements : public Replacements<typename STR::value_type> { + public: + void SetSchemeStr(const STR& s) { + this->SetScheme(s.data(), Component(0, static_cast<int>(s.length()))); + } + void SetUsernameStr(const STR& s) { + this->SetUsername(s.data(), Component(0, static_cast<int>(s.length()))); + } + void SetPasswordStr(const STR& s) { + this->SetPassword(s.data(), Component(0, static_cast<int>(s.length()))); + } + void SetHostStr(const STR& s) { + this->SetHost(s.data(), Component(0, static_cast<int>(s.length()))); + } + void SetPortStr(const STR& s) { + this->SetPort(s.data(), Component(0, static_cast<int>(s.length()))); + } + void SetPathStr(const STR& s) { + this->SetPath(s.data(), Component(0, static_cast<int>(s.length()))); + } + void SetQueryStr(const STR& s) { + this->SetQuery(s.data(), Component(0, static_cast<int>(s.length()))); + } + void SetRefStr(const STR& s) { + this->SetRef(s.data(), Component(0, static_cast<int>(s.length()))); + } +}; + +} // namespace url + +#endif // URL_URL_CANON_STDSTRING_H_
diff --git a/url_canon_stdurl.cc b/url_canon_stdurl.cc new file mode 100644 index 0000000..7a61de8 --- /dev/null +++ b/url_canon_stdurl.cc
@@ -0,0 +1,187 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Functions to canonicalize "standard" URLs, which are ones that have an +// authority section including a host name. + +#include "url/url_canon.h" +#include "url/url_canon_internal.h" +#include "url/url_constants.h" + +namespace url { + +namespace { + +template<typename CHAR, typename UCHAR> +bool DoCanonicalizeStandardURL(const URLComponentSource<CHAR>& source, + const Parsed& parsed, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed) { + // Scheme: this will append the colon. + bool success = CanonicalizeScheme(source.scheme, parsed.scheme, + output, &new_parsed->scheme); + + // Authority (username, password, host, port) + bool have_authority; + if (parsed.username.is_valid() || parsed.password.is_valid() || + parsed.host.is_nonempty() || parsed.port.is_valid()) { + have_authority = true; + + // Only write the authority separators when we have a scheme. + if (parsed.scheme.is_valid()) { + output->push_back('/'); + output->push_back('/'); + } + + // User info: the canonicalizer will handle the : and @. + success &= CanonicalizeUserInfo(source.username, parsed.username, + source.password, parsed.password, + output, + &new_parsed->username, + &new_parsed->password); + + success &= CanonicalizeHost(source.host, parsed.host, + output, &new_parsed->host); + + // Host must not be empty for standard URLs. + if (!parsed.host.is_nonempty()) + success = false; + + // Port: the port canonicalizer will handle the colon. + int default_port = DefaultPortForScheme( + &output->data()[new_parsed->scheme.begin], new_parsed->scheme.len); + success &= CanonicalizePort(source.port, parsed.port, default_port, + output, &new_parsed->port); + } else { + // No authority, clear the components. + have_authority = false; + new_parsed->host.reset(); + new_parsed->username.reset(); + new_parsed->password.reset(); + new_parsed->port.reset(); + success = false; // Standard URLs must have an authority. + } + + // Path + if (parsed.path.is_valid()) { + success &= CanonicalizePath(source.path, parsed.path, + output, &new_parsed->path); + } else if (have_authority || + parsed.query.is_valid() || parsed.ref.is_valid()) { + // When we have an empty path, make up a path when we have an authority + // or something following the path. The only time we allow an empty + // output path is when there is nothing else. + new_parsed->path = Component(output->length(), 1); + output->push_back('/'); + } else { + // No path at all + new_parsed->path.reset(); + } + + // Query + CanonicalizeQuery(source.query, parsed.query, query_converter, + output, &new_parsed->query); + + // Ref: ignore failure for this, since the page can probably still be loaded. + CanonicalizeRef(source.ref, parsed.ref, output, &new_parsed->ref); + + return success; +} + +} // namespace + + +// Returns the default port for the given canonical scheme, or PORT_UNSPECIFIED +// if the scheme is unknown. +int DefaultPortForScheme(const char* scheme, int scheme_len) { + int default_port = PORT_UNSPECIFIED; + switch (scheme_len) { + case 4: + if (!strncmp(scheme, kHttpScheme, scheme_len)) + default_port = 80; + break; + case 5: + if (!strncmp(scheme, kHttpsScheme, scheme_len)) + default_port = 443; + break; + case 3: + if (!strncmp(scheme, kFtpScheme, scheme_len)) + default_port = 21; + else if (!strncmp(scheme, kWssScheme, scheme_len)) + default_port = 443; + break; + case 6: + if (!strncmp(scheme, kGopherScheme, scheme_len)) + default_port = 70; + break; + case 2: + if (!strncmp(scheme, kWsScheme, scheme_len)) + default_port = 80; + break; + } + return default_port; +} + +bool CanonicalizeStandardURL(const char* spec, + int spec_len, + const Parsed& parsed, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed) { + return DoCanonicalizeStandardURL<char, unsigned char>( + URLComponentSource<char>(spec), parsed, query_converter, + output, new_parsed); +} + +bool CanonicalizeStandardURL(const base::char16* spec, + int spec_len, + const Parsed& parsed, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed) { + return DoCanonicalizeStandardURL<base::char16, base::char16>( + URLComponentSource<base::char16>(spec), parsed, query_converter, + output, new_parsed); +} + +// It might be nice in the future to optimize this so unchanged components don't +// need to be recanonicalized. This is especially true since the common case for +// ReplaceComponents is removing things we don't want, like reference fragments +// and usernames. These cases can become more efficient if we can assume the +// rest of the URL is OK with these removed (or only the modified parts +// recanonicalized). This would be much more complex to implement, however. +// +// You would also need to update DoReplaceComponents in url_util.cc which +// relies on this re-checking everything (see the comment there for why). +bool ReplaceStandardURL(const char* base, + const Parsed& base_parsed, + const Replacements<char>& replacements, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed) { + URLComponentSource<char> source(base); + Parsed parsed(base_parsed); + SetupOverrideComponents(base, replacements, &source, &parsed); + return DoCanonicalizeStandardURL<char, unsigned char>( + source, parsed, query_converter, output, new_parsed); +} + +// For 16-bit replacements, we turn all the replacements into UTF-8 so the +// regular codepath can be used. +bool ReplaceStandardURL(const char* base, + const Parsed& base_parsed, + const Replacements<base::char16>& replacements, + CharsetConverter* query_converter, + CanonOutput* output, + Parsed* new_parsed) { + RawCanonOutput<1024> utf8; + URLComponentSource<char> source(base); + Parsed parsed(base_parsed); + SetupUTF16OverrideComponents(base, replacements, &utf8, &source, &parsed); + return DoCanonicalizeStandardURL<char, unsigned char>( + source, parsed, query_converter, output, new_parsed); +} + +} // namespace url
diff --git a/url_canon_unittest.cc b/url_canon_unittest.cc new file mode 100644 index 0000000..469e8a0 --- /dev/null +++ b/url_canon_unittest.cc
@@ -0,0 +1,2138 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include <errno.h> + +#include "base/macros.h" +#include "testing/gtest/include/gtest/gtest.h" +#include "url/url_canon.h" +#include "url/url_canon_internal.h" +#include "url/url_canon_stdstring.h" +#include "url/url_parse.h" +#include "url/url_test_utils.h" + +// Some implementations of base/basictypes.h may define ARRAYSIZE. +// If it's not defined, we define it to the ARRAYSIZE_UNSAFE macro +// which is in our version of basictypes.h. +#ifndef ARRAYSIZE +#define ARRAYSIZE ARRAYSIZE_UNSAFE +#endif + +namespace url { + +using test_utils::WStringToUTF16; +using test_utils::ConvertUTF8ToUTF16; +using test_utils::ConvertUTF16ToUTF8; + +namespace { + +struct ComponentCase { + const char* input; + const char* expected; + Component expected_component; + bool expected_success; +}; + +// ComponentCase but with dual 8-bit/16-bit input. Generally, the unit tests +// treat each input as optional, and will only try processing if non-NULL. +// The output is always 8-bit. +struct DualComponentCase { + const char* input8; + const wchar_t* input16; + const char* expected; + Component expected_component; + bool expected_success; +}; + +// Test cases for CanonicalizeIPAddress(). The inputs are identical to +// DualComponentCase, but the output has extra CanonHostInfo fields. +struct IPAddressCase { + const char* input8; + const wchar_t* input16; + const char* expected; + Component expected_component; + + // CanonHostInfo fields, for verbose output. + CanonHostInfo::Family expected_family; + int expected_num_ipv4_components; + const char* expected_address_hex; // Two hex chars per IP address byte. +}; + +std::string BytesToHexString(unsigned char bytes[16], int length) { + EXPECT_TRUE(length == 0 || length == 4 || length == 16) + << "Bad IP address length: " << length; + std::string result; + for (int i = 0; i < length; ++i) { + result.push_back(kHexCharLookup[(bytes[i] >> 4) & 0xf]); + result.push_back(kHexCharLookup[bytes[i] & 0xf]); + } + return result; +} + +struct ReplaceCase { + const char* base; + const char* scheme; + const char* username; + const char* password; + const char* host; + const char* port; + const char* path; + const char* query; + const char* ref; + const char* expected; +}; + +// Magic string used in the replacements code that tells SetupReplComp to +// call the clear function. +const char kDeleteComp[] = "|"; + +// Sets up a replacement for a single component. This is given pointers to +// the set and clear function for the component being replaced, and will +// either set the component (if it exists) or clear it (if the replacement +// string matches kDeleteComp). +// +// This template is currently used only for the 8-bit case, and the strlen +// causes it to fail in other cases. It is left a template in case we have +// tests for wide replacements. +template<typename CHAR> +void SetupReplComp( + void (Replacements<CHAR>::*set)(const CHAR*, const Component&), + void (Replacements<CHAR>::*clear)(), + Replacements<CHAR>* rep, + const CHAR* str) { + if (str && str[0] == kDeleteComp[0]) { + (rep->*clear)(); + } else if (str) { + (rep->*set)(str, Component(0, static_cast<int>(strlen(str)))); + } +} + +} // namespace + +TEST(URLCanonTest, DoAppendUTF8) { + struct UTF8Case { + unsigned input; + const char* output; + } utf_cases[] = { + // Valid code points. + {0x24, "\x24"}, + {0xA2, "\xC2\xA2"}, + {0x20AC, "\xE2\x82\xAC"}, + {0x24B62, "\xF0\xA4\xAD\xA2"}, + {0x10FFFF, "\xF4\x8F\xBF\xBF"}, + }; + std::string out_str; + for (size_t i = 0; i < ARRAYSIZE(utf_cases); i++) { + out_str.clear(); + StdStringCanonOutput output(&out_str); + AppendUTF8Value(utf_cases[i].input, &output); + output.Complete(); + EXPECT_EQ(utf_cases[i].output, out_str); + } +} + +#if defined(GTEST_HAS_DEATH_TEST) +// TODO(mattm): Can't run this in debug mode for now, since the DCHECK will +// cause the Chromium stacktrace dialog to appear and hang the test. +// See http://crbug.com/49580. +#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON) +#define MAYBE_DoAppendUTF8Invalid DoAppendUTF8Invalid +#else +#define MAYBE_DoAppendUTF8Invalid DISABLED_DoAppendUTF8Invalid +#endif +TEST(URLCanonTest, MAYBE_DoAppendUTF8Invalid) { + std::string out_str; + StdStringCanonOutput output(&out_str); + // Invalid code point (too large). + ASSERT_DEBUG_DEATH({ + AppendUTF8Value(0x110000, &output); + output.Complete(); + EXPECT_EQ("", out_str); + }, ""); +} +#endif // defined(GTEST_HAS_DEATH_TEST) + +TEST(URLCanonTest, UTF) { + // Low-level test that we handle reading, canonicalization, and writing + // UTF-8/UTF-16 strings properly. + struct UTFCase { + const char* input8; + const wchar_t* input16; + bool expected_success; + const char* output; + } utf_cases[] = { + // Valid canonical input should get passed through & escaped. + {"\xe4\xbd\xa0\xe5\xa5\xbd", L"\x4f60\x597d", true, "%E4%BD%A0%E5%A5%BD"}, + // Test a characer that takes > 16 bits (U+10300 = old italic letter A) + {"\xF0\x90\x8C\x80", L"\xd800\xdf00", true, "%F0%90%8C%80"}, + // Non-shortest-form UTF-8 are invalid. The bad char should be replaced + // with the invalid character (EF BF DB in UTF-8). + {"\xf0\x84\xbd\xa0\xe5\xa5\xbd", NULL, false, "%EF%BF%BD%E5%A5%BD"}, + // Invalid UTF-8 sequences should be marked as invalid (the first + // sequence is truncated). + {"\xe4\xa0\xe5\xa5\xbd", L"\xd800\x597d", false, "%EF%BF%BD%E5%A5%BD"}, + // Character going off the end. + {"\xe4\xbd\xa0\xe5\xa5", L"\x4f60\xd800", false, "%E4%BD%A0%EF%BF%BD"}, + // ...same with low surrogates with no high surrogate. + {"\xed\xb0\x80", L"\xdc00", false, "%EF%BF%BD"}, + // Test a UTF-8 encoded surrogate value is marked as invalid. + // ED A0 80 = U+D800 + {"\xed\xa0\x80", NULL, false, "%EF%BF%BD"}, + }; + + std::string out_str; + for (size_t i = 0; i < ARRAYSIZE(utf_cases); i++) { + if (utf_cases[i].input8) { + out_str.clear(); + StdStringCanonOutput output(&out_str); + + int input_len = static_cast<int>(strlen(utf_cases[i].input8)); + bool success = true; + for (int ch = 0; ch < input_len; ch++) { + success &= AppendUTF8EscapedChar(utf_cases[i].input8, &ch, input_len, + &output); + } + output.Complete(); + EXPECT_EQ(utf_cases[i].expected_success, success); + EXPECT_EQ(std::string(utf_cases[i].output), out_str); + } + if (utf_cases[i].input16) { + out_str.clear(); + StdStringCanonOutput output(&out_str); + + base::string16 input_str(WStringToUTF16(utf_cases[i].input16)); + int input_len = static_cast<int>(input_str.length()); + bool success = true; + for (int ch = 0; ch < input_len; ch++) { + success &= AppendUTF8EscapedChar(input_str.c_str(), &ch, input_len, + &output); + } + output.Complete(); + EXPECT_EQ(utf_cases[i].expected_success, success); + EXPECT_EQ(std::string(utf_cases[i].output), out_str); + } + + if (utf_cases[i].input8 && utf_cases[i].input16 && + utf_cases[i].expected_success) { + // Check that the UTF-8 and UTF-16 inputs are equivalent. + + // UTF-16 -> UTF-8 + std::string input8_str(utf_cases[i].input8); + base::string16 input16_str(WStringToUTF16(utf_cases[i].input16)); + EXPECT_EQ(input8_str, ConvertUTF16ToUTF8(input16_str)); + + // UTF-8 -> UTF-16 + EXPECT_EQ(input16_str, ConvertUTF8ToUTF16(input8_str)); + } + } +} + +TEST(URLCanonTest, Scheme) { + // Here, we're mostly testing that unusual characters are handled properly. + // The canonicalizer doesn't do any parsing or whitespace detection. It will + // also do its best on error, and will escape funny sequences (these won't be + // valid schemes and it will return error). + // + // Note that the canonicalizer will append a colon to the output to separate + // out the rest of the URL, which is not present in the input. We check, + // however, that the output range includes everything but the colon. + ComponentCase scheme_cases[] = { + {"http", "http:", Component(0, 4), true}, + {"HTTP", "http:", Component(0, 4), true}, + {" HTTP ", "%20http%20:", Component(0, 10), false}, + {"htt: ", "htt%3A%20:", Component(0, 9), false}, + {"\xe4\xbd\xa0\xe5\xa5\xbdhttp", "%E4%BD%A0%E5%A5%BDhttp:", Component(0, 22), false}, + // Don't re-escape something already escaped. Note that it will + // "canonicalize" the 'A' to 'a', but that's OK. + {"ht%3Atp", "ht%3atp:", Component(0, 7), false}, + }; + + std::string out_str; + + for (size_t i = 0; i < arraysize(scheme_cases); i++) { + int url_len = static_cast<int>(strlen(scheme_cases[i].input)); + Component in_comp(0, url_len); + Component out_comp; + + out_str.clear(); + StdStringCanonOutput output1(&out_str); + bool success = CanonicalizeScheme(scheme_cases[i].input, in_comp, &output1, + &out_comp); + output1.Complete(); + + EXPECT_EQ(scheme_cases[i].expected_success, success); + EXPECT_EQ(std::string(scheme_cases[i].expected), out_str); + EXPECT_EQ(scheme_cases[i].expected_component.begin, out_comp.begin); + EXPECT_EQ(scheme_cases[i].expected_component.len, out_comp.len); + + // Now try the wide version + out_str.clear(); + StdStringCanonOutput output2(&out_str); + + base::string16 wide_input(ConvertUTF8ToUTF16(scheme_cases[i].input)); + in_comp.len = static_cast<int>(wide_input.length()); + success = CanonicalizeScheme(wide_input.c_str(), in_comp, &output2, + &out_comp); + output2.Complete(); + + EXPECT_EQ(scheme_cases[i].expected_success, success); + EXPECT_EQ(std::string(scheme_cases[i].expected), out_str); + EXPECT_EQ(scheme_cases[i].expected_component.begin, out_comp.begin); + EXPECT_EQ(scheme_cases[i].expected_component.len, out_comp.len); + } + + // Test the case where the scheme is declared nonexistant, it should be + // converted into an empty scheme. + Component out_comp; + out_str.clear(); + StdStringCanonOutput output(&out_str); + + EXPECT_TRUE(CanonicalizeScheme("", Component(0, -1), &output, &out_comp)); + output.Complete(); + + EXPECT_EQ(std::string(":"), out_str); + EXPECT_EQ(0, out_comp.begin); + EXPECT_EQ(0, out_comp.len); +} + +TEST(URLCanonTest, Host) { + IPAddressCase host_cases[] = { + // Basic canonicalization, uppercase should be converted to lowercase. + {"GoOgLe.CoM", L"GoOgLe.CoM", "google.com", Component(0, 10), CanonHostInfo::NEUTRAL, -1, ""}, + // Spaces and some other characters should be escaped. + {"Goo%20 goo%7C|.com", L"Goo%20 goo%7C|.com", "goo%20%20goo%7C%7C.com", Component(0, 22), CanonHostInfo::NEUTRAL, -1, ""}, + // Exciting different types of spaces! + {NULL, L"GOO\x00a0\x3000goo.com", "goo%20%20goo.com", Component(0, 16), CanonHostInfo::NEUTRAL, -1, ""}, + // Other types of space (no-break, zero-width, zero-width-no-break) are + // name-prepped away to nothing. + {NULL, L"GOO\x200b\x2060\xfeffgoo.com", "googoo.com", Component(0, 10), CanonHostInfo::NEUTRAL, -1, ""}, + // Ideographic full stop (full-width period for Chinese, etc.) should be + // treated as a dot. + {NULL, L"www.foo\x3002" L"bar.com", "www.foo.bar.com", Component(0, 15), CanonHostInfo::NEUTRAL, -1, ""}, + // Invalid unicode characters should fail... + // ...In wide input, ICU will barf and we'll end up with the input as + // escaped UTF-8 (the invalid character should be replaced with the + // replacement character). + {"\xef\xb7\x90zyx.com", L"\xfdd0zyx.com", "%EF%BF%BDzyx.com", Component(0, 16), CanonHostInfo::BROKEN, -1, ""}, + // ...This is the same as previous but with with escaped. + {"%ef%b7%90zyx.com", L"%ef%b7%90zyx.com", "%EF%BF%BDzyx.com", Component(0, 16), CanonHostInfo::BROKEN, -1, ""}, + // Test name prepping, fullwidth input should be converted to ASCII and NOT + // IDN-ized. This is "Go" in fullwidth UTF-8/UTF-16. + {"\xef\xbc\xa7\xef\xbd\x8f.com", L"\xff27\xff4f.com", "go.com", Component(0, 6), CanonHostInfo::NEUTRAL, -1, ""}, + // Test that fullwidth escaped values are properly name-prepped, + // then converted or rejected. + // ...%41 in fullwidth = 'A' (also as escaped UTF-8 input) + {"\xef\xbc\x85\xef\xbc\x94\xef\xbc\x91.com", L"\xff05\xff14\xff11.com", "a.com", Component(0, 5), CanonHostInfo::NEUTRAL, -1, ""}, + {"%ef%bc%85%ef%bc%94%ef%bc%91.com", L"%ef%bc%85%ef%bc%94%ef%bc%91.com", "a.com", Component(0, 5), CanonHostInfo::NEUTRAL, -1, ""}, + // ...%00 in fullwidth should fail (also as escaped UTF-8 input) + {"\xef\xbc\x85\xef\xbc\x90\xef\xbc\x90.com", L"\xff05\xff10\xff10.com", "%00.com", Component(0, 7), CanonHostInfo::BROKEN, -1, ""}, + {"%ef%bc%85%ef%bc%90%ef%bc%90.com", L"%ef%bc%85%ef%bc%90%ef%bc%90.com", "%00.com", Component(0, 7), CanonHostInfo::BROKEN, -1, ""}, + // Basic IDN support, UTF-8 and UTF-16 input should be converted to IDN + {"\xe4\xbd\xa0\xe5\xa5\xbd\xe4\xbd\xa0\xe5\xa5\xbd", L"\x4f60\x597d\x4f60\x597d", "xn--6qqa088eba", Component(0, 14), CanonHostInfo::NEUTRAL, -1, ""}, + // See http://unicode.org/cldr/utility/idna.jsp for other + // examples/experiments and http://goo.gl/7yG11o + // for the full list of characters handled differently by + // IDNA 2003, UTS 46 (http://unicode.org/reports/tr46/ ) and IDNA 2008. + + // 4 Deviation characters are mapped/ignored in UTS 46 transitional + // mechansm. UTS 46, table 4 row (g). + // Sharp-s is mapped to 'ss' in UTS 46 and IDNA 2003. + // Otherwise, it'd be "xn--fuball-cta.de". + {"fu\xc3\x9f" "ball.de", L"fu\x00df" L"ball.de", "fussball.de", + Component(0, 11), CanonHostInfo::NEUTRAL, -1, ""}, + // Final-sigma (U+03C3) is mapped to regular sigma (U+03C2). + // Otherwise, it'd be "xn--wxaijb9b". + {"\xcf\x83\xcf\x8c\xce\xbb\xce\xbf\xcf\x82", L"\x3c3\x3cc\x3bb\x3bf\x3c2", + "xn--wxaikc6b", Component(0, 12), + CanonHostInfo::NEUTRAL, -1, ""}, + // ZWNJ (U+200C) and ZWJ (U+200D) are mapped away in UTS 46 transitional + // handling as well as in IDNA 2003. + {"a\xe2\x80\x8c" "b\xe2\x80\x8d" "c", L"a\x200c" L"b\x200d" L"c", "abc", + Component(0, 3), CanonHostInfo::NEUTRAL, -1, ""}, + // ZWJ between Devanagari characters is still mapped away in UTS 46 + // transitional handling. IDNA 2008 would give xn--11bo0mv54g. + {"\xe0\xa4\x95\xe0\xa5\x8d\xe2\x80\x8d\xe0\xa4\x9c", + L"\x915\x94d\x200d\x91c", "xn--11bo0m", + Component(0, 10), CanonHostInfo::NEUTRAL, -1, ""}, + // Fullwidth exclamation mark is disallowed. UTS 46, table 4, row (b) + // However, we do allow this at the moment because we don't use + // STD3 rules and canonicalize full-width ASCII to ASCII. + {"wow\xef\xbc\x81", L"wow\xff01", "wow%21", + Component(0, 6), CanonHostInfo::NEUTRAL, -1, ""}, + // U+2132 (turned capital F) is disallowed. UTS 46, table 4, row (c) + // Allowed in IDNA 2003, but the mapping changed after Unicode 3.2 + {"\xe2\x84\xb2oo", L"\x2132oo", "%E2%84%B2oo", + Component(0, 11), CanonHostInfo::BROKEN, -1, ""}, + // U+2F868 (CJK Comp) is disallowed. UTS 46, table 4, row (d) + // Allowed in IDNA 2003, but the mapping changed after Unicode 3.2 + {"\xf0\xaf\xa1\xa8\xe5\xa7\xbb.cn", L"\xd87e\xdc68\x59fb.cn", + "%F0%AF%A1%A8%E5%A7%BB.cn", + Component(0, 24), CanonHostInfo::BROKEN, -1, ""}, + // Maps uppercase letters to lower case letters. UTS 46 table 4 row (e) + {"M\xc3\x9cNCHEN", L"M\xdcNCHEN", "xn--mnchen-3ya", + Component(0, 14), CanonHostInfo::NEUTRAL, -1, ""}, + // Symbol/punctuations are allowed in IDNA 2003/UTS46. + // Not allowed in IDNA 2008. UTS 46 table 4 row (f). + {"\xe2\x99\xa5ny.us", L"\x2665ny.us", "xn--ny-s0x.us", + Component(0, 13), CanonHostInfo::NEUTRAL, -1, ""}, + // U+11013 is new in Unicode 6.0 and is allowed. UTS 46 table 4, row (h) + // We used to allow it because we passed through unassigned code points. + {"\xf0\x91\x80\x93.com", L"\xd804\xdc13.com", "xn--n00d.com", + Component(0, 12), CanonHostInfo::NEUTRAL, -1, ""}, + // U+0602 is disallowed in UTS46/IDNA 2008. UTS 46 table 4, row(i) + // Used to be allowed in INDA 2003. + {"\xd8\x82.eg", L"\x602.eg", "%D8%82.eg", + Component(0, 9), CanonHostInfo::BROKEN, -1, ""}, + // U+20B7 is new in Unicode 5.2 (not a part of IDNA 2003 based + // on Unicode 3.2). We did allow it in the past because we let unassigned + // code point pass. We continue to allow it even though it's a + // "punctuation and symbol" blocked in IDNA 2008. + // UTS 46 table 4, row (j) + {"\xe2\x82\xb7.com", L"\x20b7.com", "xn--wzg.com", + Component(0, 11), CanonHostInfo::NEUTRAL, -1, ""}, + // Maps uppercase letters to lower case letters. + // In IDNA 2003, it's allowed without case-folding + // ( xn--bc-7cb.com ) because it's not defined in Unicode 3.2 + // (added in Unicode 4.1). UTS 46 table 4 row (k) + {"bc\xc8\xba.com", L"bc\x23a.com", "xn--bc-is1a.com", + Component(0, 15), CanonHostInfo::NEUTRAL, -1, ""}, + // BiDi check test + // "Divehi" in Divehi (Thaana script) ends with BidiClass=NSM. + // Disallowed in IDNA 2003 but now allowed in UTS 46/IDNA 2008. + {"\xde\x8b\xde\xa8\xde\x88\xde\xac\xde\x80\xde\xa8", + L"\x78b\x7a8\x788\x7ac\x780\x7a8", "xn--hqbpi0jcw", + Component(0, 13), CanonHostInfo::NEUTRAL, -1, ""}, + // Disallowed in both IDNA 2003 and 2008 with BiDi check. + // Labels starting with a RTL character cannot end with a LTR character. + {"\xd8\xac\xd8\xa7\xd8\xb1xyz", L"\x62c\x627\x631xyz", + "%D8%AC%D8%A7%D8%B1xyz", Component(0, 21), + CanonHostInfo::BROKEN, -1, ""}, + // Labels starting with a RTL character can end with BC=EN (European + // number). Disallowed in IDNA 2003 but now allowed. + {"\xd8\xac\xd8\xa7\xd8\xb1" "2", L"\x62c\x627\x631" L"2", + "xn--2-ymcov", Component(0, 11), + CanonHostInfo::NEUTRAL, -1, ""}, + // Labels starting with a RTL character cannot have "L" characters + // even if it ends with an BC=EN. Disallowed in both IDNA 2003/2008. + {"\xd8\xac\xd8\xa7\xd8\xb1xy2", L"\x62c\x627\x631xy2", + "%D8%AC%D8%A7%D8%B1xy2", Component(0, 21), + CanonHostInfo::BROKEN, -1, ""}, + // Labels starting with a RTL character can end with BC=AN (Arabic number) + // Disallowed in IDNA 2003, but now allowed. + {"\xd8\xac\xd8\xa7\xd8\xb1\xd9\xa2", L"\x62c\x627\x631\x662", + "xn--mgbjq0r", Component(0, 11), + CanonHostInfo::NEUTRAL, -1, ""}, + // Labels starting with a RTL character cannot have "L" characters + // even if it ends with an BC=AN (Arabic number). + // Disallowed in both IDNA 2003/2008. + {"\xd8\xac\xd8\xa7\xd8\xb1xy\xd9\xa2", L"\x62c\x627\x631xy\x662", + "%D8%AC%D8%A7%D8%B1xy%D9%A2", Component(0, 26), + CanonHostInfo::BROKEN, -1, ""}, + // Labels starting with a RTL character cannot mix BC=EN and BC=AN + {"\xd8\xac\xd8\xa7\xd8\xb1xy2\xd9\xa2", L"\x62c\x627\x631xy2\x662", + "%D8%AC%D8%A7%D8%B1xy2%D9%A2", Component(0, 27), + CanonHostInfo::BROKEN, -1, ""}, + // As of Unicode 6.2, U+20CF is not assigned. We do not allow it. + {"\xe2\x83\x8f.com", L"\x20cf.com", "%E2%83%8F.com", + Component(0, 13), CanonHostInfo::BROKEN, -1, ""}, + // U+0080 is not allowed. + {"\xc2\x80.com", L"\x80.com", "%C2%80.com", + Component(0, 10), CanonHostInfo::BROKEN, -1, ""}, + // Mixed UTF-8 and escaped UTF-8 (narrow case) and UTF-16 and escaped + // Mixed UTF-8 and escaped UTF-8 (narrow case) and UTF-16 and escaped + // UTF-8 (wide case). The output should be equivalent to the true wide + // character input above). + {"%E4%BD%A0%E5%A5%BD\xe4\xbd\xa0\xe5\xa5\xbd", + L"%E4%BD%A0%E5%A5%BD\x4f60\x597d", "xn--6qqa088eba", + Component(0, 14), CanonHostInfo::NEUTRAL, -1, ""}, + // Invalid escaped characters should fail and the percents should be + // escaped. + {"%zz%66%a", L"%zz%66%a", "%25zzf%25a", Component(0, 10), + CanonHostInfo::BROKEN, -1, ""}, + // If we get an invalid character that has been escaped. + {"%25", L"%25", "%25", Component(0, 3), + CanonHostInfo::BROKEN, -1, ""}, + {"hello%00", L"hello%00", "hello%00", Component(0, 8), + CanonHostInfo::BROKEN, -1, ""}, + // Escaped numbers should be treated like IP addresses if they are. + {"%30%78%63%30%2e%30%32%35%30.01", L"%30%78%63%30%2e%30%32%35%30.01", + "192.168.0.1", Component(0, 11), CanonHostInfo::IPV4, 3, + "C0A80001"}, + {"%30%78%63%30%2e%30%32%35%30.01%2e", L"%30%78%63%30%2e%30%32%35%30.01%2e", + "192.168.0.1", Component(0, 11), CanonHostInfo::IPV4, 3, + "C0A80001"}, + // Invalid escaping should trigger the regular host error handling. + {"%3g%78%63%30%2e%30%32%35%30%2E.01", L"%3g%78%63%30%2e%30%32%35%30%2E.01", "%253gxc0.0250..01", Component(0, 17), CanonHostInfo::BROKEN, -1, ""}, + // Something that isn't exactly an IP should get treated as a host and + // spaces escaped. + {"192.168.0.1 hello", L"192.168.0.1 hello", "192.168.0.1%20hello", Component(0, 19), CanonHostInfo::NEUTRAL, -1, ""}, + // Fullwidth and escaped UTF-8 fullwidth should still be treated as IP. + // These are "0Xc0.0250.01" in fullwidth. + {"\xef\xbc\x90%Ef%bc\xb8%ef%Bd%83\xef\xbc\x90%EF%BC%8E\xef\xbc\x90\xef\xbc\x92\xef\xbc\x95\xef\xbc\x90\xef\xbc%8E\xef\xbc\x90\xef\xbc\x91", L"\xff10\xff38\xff43\xff10\xff0e\xff10\xff12\xff15\xff10\xff0e\xff10\xff11", "192.168.0.1", Component(0, 11), CanonHostInfo::IPV4, 3, "C0A80001"}, + // Broken IP addresses get marked as such. + {"192.168.0.257", L"192.168.0.257", "192.168.0.257", Component(0, 13), CanonHostInfo::BROKEN, -1, ""}, + {"[google.com]", L"[google.com]", "[google.com]", Component(0, 12), CanonHostInfo::BROKEN, -1, ""}, + // Cyrillic letter followed by '(' should return punycode for '(' escaped + // before punycode string was created. I.e. + // if '(' is escaped after punycode is created we would get xn--%28-8tb + // (incorrect). + {"\xd1\x82(", L"\x0442(", "xn--%28-7ed", Component(0, 11), + CanonHostInfo::NEUTRAL, -1, ""}, + // Address with all hexidecimal characters with leading number of 1<<32 + // or greater and should return NEUTRAL rather than BROKEN if not all + // components are numbers. + {"12345678912345.de", L"12345678912345.de", "12345678912345.de", Component(0, 17), CanonHostInfo::NEUTRAL, -1, ""}, + {"1.12345678912345.de", L"1.12345678912345.de", "1.12345678912345.de", Component(0, 19), CanonHostInfo::NEUTRAL, -1, ""}, + {"12345678912345.12345678912345.de", L"12345678912345.12345678912345.de", "12345678912345.12345678912345.de", Component(0, 32), CanonHostInfo::NEUTRAL, -1, ""}, + {"1.2.0xB3A73CE5B59.de", L"1.2.0xB3A73CE5B59.de", "1.2.0xb3a73ce5b59.de", Component(0, 20), CanonHostInfo::NEUTRAL, -1, ""}, + {"12345678912345.0xde", L"12345678912345.0xde", "12345678912345.0xde", Component(0, 19), CanonHostInfo::BROKEN, -1, ""}, + }; + + // CanonicalizeHost() non-verbose. + std::string out_str; + for (size_t i = 0; i < arraysize(host_cases); i++) { + // Narrow version. + if (host_cases[i].input8) { + int host_len = static_cast<int>(strlen(host_cases[i].input8)); + Component in_comp(0, host_len); + Component out_comp; + + out_str.clear(); + StdStringCanonOutput output(&out_str); + + bool success = CanonicalizeHost(host_cases[i].input8, in_comp, &output, + &out_comp); + output.Complete(); + + EXPECT_EQ(host_cases[i].expected_family != CanonHostInfo::BROKEN, + success) << "for input: " << host_cases[i].input8; + EXPECT_EQ(std::string(host_cases[i].expected), out_str) << + "for input: " << host_cases[i].input8; + EXPECT_EQ(host_cases[i].expected_component.begin, out_comp.begin) << + "for input: " << host_cases[i].input8; + EXPECT_EQ(host_cases[i].expected_component.len, out_comp.len) << + "for input: " << host_cases[i].input8; + } + + // Wide version. + if (host_cases[i].input16) { + base::string16 input16(WStringToUTF16(host_cases[i].input16)); + int host_len = static_cast<int>(input16.length()); + Component in_comp(0, host_len); + Component out_comp; + + out_str.clear(); + StdStringCanonOutput output(&out_str); + + bool success = CanonicalizeHost(input16.c_str(), in_comp, &output, + &out_comp); + output.Complete(); + + EXPECT_EQ(host_cases[i].expected_family != CanonHostInfo::BROKEN, + success); + EXPECT_EQ(std::string(host_cases[i].expected), out_str); + EXPECT_EQ(host_cases[i].expected_component.begin, out_comp.begin); + EXPECT_EQ(host_cases[i].expected_component.len, out_comp.len); + } + } + + // CanonicalizeHostVerbose() + for (size_t i = 0; i < arraysize(host_cases); i++) { + // Narrow version. + if (host_cases[i].input8) { + int host_len = static_cast<int>(strlen(host_cases[i].input8)); + Component in_comp(0, host_len); + + out_str.clear(); + StdStringCanonOutput output(&out_str); + CanonHostInfo host_info; + + CanonicalizeHostVerbose(host_cases[i].input8, in_comp, &output, + &host_info); + output.Complete(); + + EXPECT_EQ(host_cases[i].expected_family, host_info.family); + EXPECT_EQ(std::string(host_cases[i].expected), out_str); + EXPECT_EQ(host_cases[i].expected_component.begin, + host_info.out_host.begin); + EXPECT_EQ(host_cases[i].expected_component.len, host_info.out_host.len); + EXPECT_EQ(std::string(host_cases[i].expected_address_hex), + BytesToHexString(host_info.address, host_info.AddressLength())); + if (host_cases[i].expected_family == CanonHostInfo::IPV4) { + EXPECT_EQ(host_cases[i].expected_num_ipv4_components, + host_info.num_ipv4_components); + } + } + + // Wide version. + if (host_cases[i].input16) { + base::string16 input16(WStringToUTF16(host_cases[i].input16)); + int host_len = static_cast<int>(input16.length()); + Component in_comp(0, host_len); + + out_str.clear(); + StdStringCanonOutput output(&out_str); + CanonHostInfo host_info; + + CanonicalizeHostVerbose(input16.c_str(), in_comp, &output, &host_info); + output.Complete(); + + EXPECT_EQ(host_cases[i].expected_family, host_info.family); + EXPECT_EQ(std::string(host_cases[i].expected), out_str); + EXPECT_EQ(host_cases[i].expected_component.begin, + host_info.out_host.begin); + EXPECT_EQ(host_cases[i].expected_component.len, host_info.out_host.len); + EXPECT_EQ(std::string(host_cases[i].expected_address_hex), + BytesToHexString(host_info.address, host_info.AddressLength())); + if (host_cases[i].expected_family == CanonHostInfo::IPV4) { + EXPECT_EQ(host_cases[i].expected_num_ipv4_components, + host_info.num_ipv4_components); + } + } + } +} + +TEST(URLCanonTest, IPv4) { + IPAddressCase cases[] = { + // Empty is not an IP address. + {"", L"", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + {".", L".", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + // Regular IP addresses in different bases. + {"192.168.0.1", L"192.168.0.1", "192.168.0.1", Component(0, 11), CanonHostInfo::IPV4, 4, "C0A80001"}, + {"0300.0250.00.01", L"0300.0250.00.01", "192.168.0.1", Component(0, 11), CanonHostInfo::IPV4, 4, "C0A80001"}, + {"0xC0.0Xa8.0x0.0x1", L"0xC0.0Xa8.0x0.0x1", "192.168.0.1", Component(0, 11), CanonHostInfo::IPV4, 4, "C0A80001"}, + // Non-IP addresses due to invalid characters. + {"192.168.9.com", L"192.168.9.com", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + // Invalid characters for the base should be rejected. + {"19a.168.0.1", L"19a.168.0.1", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + {"0308.0250.00.01", L"0308.0250.00.01", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + {"0xCG.0xA8.0x0.0x1", L"0xCG.0xA8.0x0.0x1", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + // If there are not enough components, the last one should fill them out. + {"192", L"192", "0.0.0.192", Component(0, 9), CanonHostInfo::IPV4, 1, "000000C0"}, + {"0xC0a80001", L"0xC0a80001", "192.168.0.1", Component(0, 11), CanonHostInfo::IPV4, 1, "C0A80001"}, + {"030052000001", L"030052000001", "192.168.0.1", Component(0, 11), CanonHostInfo::IPV4, 1, "C0A80001"}, + {"000030052000001", L"000030052000001", "192.168.0.1", Component(0, 11), CanonHostInfo::IPV4, 1, "C0A80001"}, + {"192.168", L"192.168", "192.0.0.168", Component(0, 11), CanonHostInfo::IPV4, 2, "C00000A8"}, + {"192.0x00A80001", L"192.0x000A80001", "192.168.0.1", Component(0, 11), CanonHostInfo::IPV4, 2, "C0A80001"}, + {"0xc0.052000001", L"0xc0.052000001", "192.168.0.1", Component(0, 11), CanonHostInfo::IPV4, 2, "C0A80001"}, + {"192.168.1", L"192.168.1", "192.168.0.1", Component(0, 11), CanonHostInfo::IPV4, 3, "C0A80001"}, + // Too many components means not an IP address. + {"192.168.0.0.1", L"192.168.0.0.1", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + // We allow a single trailing dot. + {"192.168.0.1.", L"192.168.0.1.", "192.168.0.1", Component(0, 11), CanonHostInfo::IPV4, 4, "C0A80001"}, + {"192.168.0.1. hello", L"192.168.0.1. hello", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + {"192.168.0.1..", L"192.168.0.1..", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + // Two dots in a row means not an IP address. + {"192.168..1", L"192.168..1", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + // Any numerical overflow should be marked as BROKEN. + {"0x100.0", L"0x100.0", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"0x100.0.0", L"0x100.0.0", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"0x100.0.0.0", L"0x100.0.0.0", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"0.0x100.0.0", L"0.0x100.0.0", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"0.0.0x100.0", L"0.0.0x100.0", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"0.0.0.0x100", L"0.0.0.0x100", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"0.0.0x10000", L"0.0.0x10000", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"0.0x1000000", L"0.0x1000000", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"0x100000000", L"0x100000000", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + // Repeat the previous tests, minus 1, to verify boundaries. + {"0xFF.0", L"0xFF.0", "255.0.0.0", Component(0, 9), CanonHostInfo::IPV4, 2, "FF000000"}, + {"0xFF.0.0", L"0xFF.0.0", "255.0.0.0", Component(0, 9), CanonHostInfo::IPV4, 3, "FF000000"}, + {"0xFF.0.0.0", L"0xFF.0.0.0", "255.0.0.0", Component(0, 9), CanonHostInfo::IPV4, 4, "FF000000"}, + {"0.0xFF.0.0", L"0.0xFF.0.0", "0.255.0.0", Component(0, 9), CanonHostInfo::IPV4, 4, "00FF0000"}, + {"0.0.0xFF.0", L"0.0.0xFF.0", "0.0.255.0", Component(0, 9), CanonHostInfo::IPV4, 4, "0000FF00"}, + {"0.0.0.0xFF", L"0.0.0.0xFF", "0.0.0.255", Component(0, 9), CanonHostInfo::IPV4, 4, "000000FF"}, + {"0.0.0xFFFF", L"0.0.0xFFFF", "0.0.255.255", Component(0, 11), CanonHostInfo::IPV4, 3, "0000FFFF"}, + {"0.0xFFFFFF", L"0.0xFFFFFF", "0.255.255.255", Component(0, 13), CanonHostInfo::IPV4, 2, "00FFFFFF"}, + {"0xFFFFFFFF", L"0xFFFFFFFF", "255.255.255.255", Component(0, 15), CanonHostInfo::IPV4, 1, "FFFFFFFF"}, + // Old trunctations tests. They're all "BROKEN" now. + {"276.256.0xf1a2.077777", L"276.256.0xf1a2.077777", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"192.168.0.257", L"192.168.0.257", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"192.168.0xa20001", L"192.168.0xa20001", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"192.015052000001", L"192.015052000001", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"0X12C0a80001", L"0X12C0a80001", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"276.1.2", L"276.1.2", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + // Spaces should be rejected. + {"192.168.0.1 hello", L"192.168.0.1 hello", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + // Very large numbers. + {"0000000000000300.0x00000000000000fF.00000000000000001", L"0000000000000300.0x00000000000000fF.00000000000000001", "192.255.0.1", Component(0, 11), CanonHostInfo::IPV4, 3, "C0FF0001"}, + {"0000000000000300.0xffffffffFFFFFFFF.3022415481470977", L"0000000000000300.0xffffffffFFFFFFFF.3022415481470977", "", Component(0, 11), CanonHostInfo::BROKEN, -1, ""}, + // A number has no length limit, but long numbers can still overflow. + {"00000000000000000001", L"00000000000000000001", "0.0.0.1", Component(0, 7), CanonHostInfo::IPV4, 1, "00000001"}, + {"0000000000000000100000000000000001", L"0000000000000000100000000000000001", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + // If a long component is non-numeric, it's a hostname, *not* a broken IP. + {"0.0.0.000000000000000000z", L"0.0.0.000000000000000000z", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + {"0.0.0.100000000000000000z", L"0.0.0.100000000000000000z", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + // Truncation of all zeros should still result in 0. + {"0.00.0x.0x0", L"0.00.0x.0x0", "0.0.0.0", Component(0, 7), CanonHostInfo::IPV4, 4, "00000000"}, + }; + + for (size_t i = 0; i < arraysize(cases); i++) { + // 8-bit version. + Component component(0, static_cast<int>(strlen(cases[i].input8))); + + std::string out_str1; + StdStringCanonOutput output1(&out_str1); + CanonHostInfo host_info; + CanonicalizeIPAddress(cases[i].input8, component, &output1, &host_info); + output1.Complete(); + + EXPECT_EQ(cases[i].expected_family, host_info.family); + EXPECT_EQ(std::string(cases[i].expected_address_hex), + BytesToHexString(host_info.address, host_info.AddressLength())); + if (host_info.family == CanonHostInfo::IPV4) { + EXPECT_STREQ(cases[i].expected, out_str1.c_str()); + EXPECT_EQ(cases[i].expected_component.begin, host_info.out_host.begin); + EXPECT_EQ(cases[i].expected_component.len, host_info.out_host.len); + EXPECT_EQ(cases[i].expected_num_ipv4_components, + host_info.num_ipv4_components); + } + + // 16-bit version. + base::string16 input16(WStringToUTF16(cases[i].input16)); + component = Component(0, static_cast<int>(input16.length())); + + std::string out_str2; + StdStringCanonOutput output2(&out_str2); + CanonicalizeIPAddress(input16.c_str(), component, &output2, &host_info); + output2.Complete(); + + EXPECT_EQ(cases[i].expected_family, host_info.family); + EXPECT_EQ(std::string(cases[i].expected_address_hex), + BytesToHexString(host_info.address, host_info.AddressLength())); + if (host_info.family == CanonHostInfo::IPV4) { + EXPECT_STREQ(cases[i].expected, out_str2.c_str()); + EXPECT_EQ(cases[i].expected_component.begin, host_info.out_host.begin); + EXPECT_EQ(cases[i].expected_component.len, host_info.out_host.len); + EXPECT_EQ(cases[i].expected_num_ipv4_components, + host_info.num_ipv4_components); + } + } +} + +TEST(URLCanonTest, IPv6) { + IPAddressCase cases[] = { + // Empty is not an IP address. + {"", L"", "", Component(), CanonHostInfo::NEUTRAL, -1, ""}, + // Non-IPs with [:] characters are marked BROKEN. + {":", L":", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[", L"[", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[:", L"[:", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"]", L"]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {":]", L":]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[]", L"[]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[:]", L"[:]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + // Regular IP address is invalid without bounding '[' and ']'. + {"2001:db8::1", L"2001:db8::1", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[2001:db8::1", L"[2001:db8::1", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"2001:db8::1]", L"2001:db8::1]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + // Regular IP addresses. + {"[::]", L"[::]", "[::]", Component(0,4), CanonHostInfo::IPV6, -1, "00000000000000000000000000000000"}, + {"[::1]", L"[::1]", "[::1]", Component(0,5), CanonHostInfo::IPV6, -1, "00000000000000000000000000000001"}, + {"[1::]", L"[1::]", "[1::]", Component(0,5), CanonHostInfo::IPV6, -1, "00010000000000000000000000000000"}, + + // Leading zeros should be stripped. + {"[000:01:02:003:004:5:6:007]", L"[000:01:02:003:004:5:6:007]", "[0:1:2:3:4:5:6:7]", Component(0,17), CanonHostInfo::IPV6, -1, "00000001000200030004000500060007"}, + + // Upper case letters should be lowercased. + {"[A:b:c:DE:fF:0:1:aC]", L"[A:b:c:DE:fF:0:1:aC]", "[a:b:c:de:ff:0:1:ac]", Component(0,20), CanonHostInfo::IPV6, -1, "000A000B000C00DE00FF0000000100AC"}, + + // The same address can be written with different contractions, but should + // get canonicalized to the same thing. + {"[1:0:0:2::3:0]", L"[1:0:0:2::3:0]", "[1::2:0:0:3:0]", Component(0,14), CanonHostInfo::IPV6, -1, "00010000000000020000000000030000"}, + {"[1::2:0:0:3:0]", L"[1::2:0:0:3:0]", "[1::2:0:0:3:0]", Component(0,14), CanonHostInfo::IPV6, -1, "00010000000000020000000000030000"}, + + // Addresses with embedded IPv4. + {"[::192.168.0.1]", L"[::192.168.0.1]", "[::c0a8:1]", Component(0,10), CanonHostInfo::IPV6, -1, "000000000000000000000000C0A80001"}, + {"[::ffff:192.168.0.1]", L"[::ffff:192.168.0.1]", "[::ffff:c0a8:1]", Component(0,15), CanonHostInfo::IPV6, -1, "00000000000000000000FFFFC0A80001"}, + {"[::eeee:192.168.0.1]", L"[::eeee:192.168.0.1]", "[::eeee:c0a8:1]", Component(0, 15), CanonHostInfo::IPV6, -1, "00000000000000000000EEEEC0A80001"}, + {"[2001::192.168.0.1]", L"[2001::192.168.0.1]", "[2001::c0a8:1]", Component(0, 14), CanonHostInfo::IPV6, -1, "200100000000000000000000C0A80001"}, + {"[1:2:192.168.0.1:5:6]", L"[1:2:192.168.0.1:5:6]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + + // IPv4 with last component missing. + {"[::ffff:192.1.2]", L"[::ffff:192.1.2]", "[::ffff:c001:2]", Component(0,15), CanonHostInfo::IPV6, -1, "00000000000000000000FFFFC0010002"}, + + // IPv4 using hex. + // TODO(eroman): Should this format be disallowed? + {"[::ffff:0xC0.0Xa8.0x0.0x1]", L"[::ffff:0xC0.0Xa8.0x0.0x1]", "[::ffff:c0a8:1]", Component(0,15), CanonHostInfo::IPV6, -1, "00000000000000000000FFFFC0A80001"}, + + // There may be zeros surrounding the "::" contraction. + {"[0:0::0:0:8]", L"[0:0::0:0:8]", "[::8]", Component(0,5), CanonHostInfo::IPV6, -1, "00000000000000000000000000000008"}, + + {"[2001:db8::1]", L"[2001:db8::1]", "[2001:db8::1]", Component(0,13), CanonHostInfo::IPV6, -1, "20010DB8000000000000000000000001"}, + + // Can only have one "::" contraction in an IPv6 string literal. + {"[2001::db8::1]", L"[2001::db8::1]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + // No more than 2 consecutive ':'s. + {"[2001:db8:::1]", L"[2001:db8:::1]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[:::]", L"[:::]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + // Non-IP addresses due to invalid characters. + {"[2001::.com]", L"[2001::.com]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + // If there are not enough components, the last one should fill them out. + // ... omitted at this time ... + // Too many components means not an IP address. Similarly with too few if using IPv4 compat or mapped addresses. + {"[::192.168.0.0.1]", L"[::192.168.0.0.1]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[::ffff:192.168.0.0.1]", L"[::ffff:192.168.0.0.1]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[1:2:3:4:5:6:7:8:9]", L"[1:2:3:4:5:6:7:8:9]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + // Too many bits (even though 8 comonents, the last one holds 32 bits). + {"[0:0:0:0:0:0:0:192.168.0.1]", L"[0:0:0:0:0:0:0:192.168.0.1]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + + // Too many bits specified -- the contraction would have to be zero-length + // to not exceed 128 bits. + {"[1:2:3:4:5:6::192.168.0.1]", L"[1:2:3:4:5:6::192.168.0.1]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + + // The contraction is for 16 bits of zero. + {"[1:2:3:4:5:6::8]", L"[1:2:3:4:5:6::8]", "[1:2:3:4:5:6:0:8]", Component(0,17), CanonHostInfo::IPV6, -1, "00010002000300040005000600000008"}, + + // Cannot have a trailing colon. + {"[1:2:3:4:5:6:7:8:]", L"[1:2:3:4:5:6:7:8:]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[1:2:3:4:5:6:192.168.0.1:]", L"[1:2:3:4:5:6:192.168.0.1:]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + + // Cannot have negative numbers. + {"[-1:2:3:4:5:6:7:8]", L"[-1:2:3:4:5:6:7:8]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + + // Scope ID -- the URL may contain an optional ["%" <scope_id>] section. + // The scope_id should be included in the canonicalized URL, and is an + // unsigned decimal number. + + // Invalid because no ID was given after the percent. + + // Don't allow scope-id + {"[1::%1]", L"[1::%1]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[1::%eth0]", L"[1::%eth0]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[1::%]", L"[1::%]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[%]", L"[%]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[::%:]", L"[::%:]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + + // Don't allow leading or trailing colons. + {"[:0:0::0:0:8]", L"[:0:0::0:0:8]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[0:0::0:0:8:]", L"[0:0::0:0:8:]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + {"[:0:0::0:0:8:]", L"[:0:0::0:0:8:]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + + // We allow a single trailing dot. + // ... omitted at this time ... + // Two dots in a row means not an IP address. + {"[::192.168..1]", L"[::192.168..1]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + // Any non-first components get truncated to one byte. + // ... omitted at this time ... + // Spaces should be rejected. + {"[::1 hello]", L"[::1 hello]", "", Component(), CanonHostInfo::BROKEN, -1, ""}, + }; + + for (size_t i = 0; i < arraysize(cases); i++) { + // 8-bit version. + Component component(0, static_cast<int>(strlen(cases[i].input8))); + + std::string out_str1; + StdStringCanonOutput output1(&out_str1); + CanonHostInfo host_info; + CanonicalizeIPAddress(cases[i].input8, component, &output1, &host_info); + output1.Complete(); + + EXPECT_EQ(cases[i].expected_family, host_info.family); + EXPECT_EQ(std::string(cases[i].expected_address_hex), + BytesToHexString(host_info.address, host_info.AddressLength())) << "iter " << i << " host " << cases[i].input8; + if (host_info.family == CanonHostInfo::IPV6) { + EXPECT_STREQ(cases[i].expected, out_str1.c_str()); + EXPECT_EQ(cases[i].expected_component.begin, + host_info.out_host.begin); + EXPECT_EQ(cases[i].expected_component.len, host_info.out_host.len); + } + + // 16-bit version. + base::string16 input16(WStringToUTF16(cases[i].input16)); + component = Component(0, static_cast<int>(input16.length())); + + std::string out_str2; + StdStringCanonOutput output2(&out_str2); + CanonicalizeIPAddress(input16.c_str(), component, &output2, &host_info); + output2.Complete(); + + EXPECT_EQ(cases[i].expected_family, host_info.family); + EXPECT_EQ(std::string(cases[i].expected_address_hex), + BytesToHexString(host_info.address, host_info.AddressLength())); + if (host_info.family == CanonHostInfo::IPV6) { + EXPECT_STREQ(cases[i].expected, out_str2.c_str()); + EXPECT_EQ(cases[i].expected_component.begin, host_info.out_host.begin); + EXPECT_EQ(cases[i].expected_component.len, host_info.out_host.len); + } + } +} + +TEST(URLCanonTest, IPEmpty) { + std::string out_str1; + StdStringCanonOutput output1(&out_str1); + CanonHostInfo host_info; + + // This tests tests. + const char spec[] = "192.168.0.1"; + CanonicalizeIPAddress(spec, Component(), &output1, &host_info); + EXPECT_FALSE(host_info.IsIPAddress()); + + CanonicalizeIPAddress(spec, Component(0, 0), &output1, &host_info); + EXPECT_FALSE(host_info.IsIPAddress()); +} + +TEST(URLCanonTest, UserInfo) { + // Note that the canonicalizer should escape and treat empty components as + // not being there. + + // We actually parse a full input URL so we can get the initial components. + struct UserComponentCase { + const char* input; + const char* expected; + Component expected_username; + Component expected_password; + bool expected_success; + } user_info_cases[] = { + {"http://user:pass@host.com/", "user:pass@", Component(0, 4), Component(5, 4), true}, + {"http://@host.com/", "", Component(0, -1), Component(0, -1), true}, + {"http://:@host.com/", "", Component(0, -1), Component(0, -1), true}, + {"http://foo:@host.com/", "foo@", Component(0, 3), Component(0, -1), true}, + {"http://:foo@host.com/", ":foo@", Component(0, 0), Component(1, 3), true}, + {"http://^ :$\t@host.com/", "%5E%20:$%09@", Component(0, 6), Component(7, 4), true}, + {"http://user:pass@/", "user:pass@", Component(0, 4), Component(5, 4), true}, + {"http://%2540:bar@domain.com/", "%2540:bar@", Component(0, 5), Component(6, 3), true }, + + // IE7 compatability: old versions allowed backslashes in usernames, but + // IE7 does not. We disallow it as well. + {"ftp://me\\mydomain:pass@foo.com/", "", Component(0, -1), Component(0, -1), true}, + }; + + for (size_t i = 0; i < ARRAYSIZE(user_info_cases); i++) { + int url_len = static_cast<int>(strlen(user_info_cases[i].input)); + Parsed parsed; + ParseStandardURL(user_info_cases[i].input, url_len, &parsed); + Component out_user, out_pass; + std::string out_str; + StdStringCanonOutput output1(&out_str); + + bool success = CanonicalizeUserInfo(user_info_cases[i].input, + parsed.username, + user_info_cases[i].input, + parsed.password, + &output1, + &out_user, + &out_pass); + output1.Complete(); + + EXPECT_EQ(user_info_cases[i].expected_success, success); + EXPECT_EQ(std::string(user_info_cases[i].expected), out_str); + EXPECT_EQ(user_info_cases[i].expected_username.begin, out_user.begin); + EXPECT_EQ(user_info_cases[i].expected_username.len, out_user.len); + EXPECT_EQ(user_info_cases[i].expected_password.begin, out_pass.begin); + EXPECT_EQ(user_info_cases[i].expected_password.len, out_pass.len); + + // Now try the wide version + out_str.clear(); + StdStringCanonOutput output2(&out_str); + base::string16 wide_input(ConvertUTF8ToUTF16(user_info_cases[i].input)); + success = CanonicalizeUserInfo(wide_input.c_str(), + parsed.username, + wide_input.c_str(), + parsed.password, + &output2, + &out_user, + &out_pass); + output2.Complete(); + + EXPECT_EQ(user_info_cases[i].expected_success, success); + EXPECT_EQ(std::string(user_info_cases[i].expected), out_str); + EXPECT_EQ(user_info_cases[i].expected_username.begin, out_user.begin); + EXPECT_EQ(user_info_cases[i].expected_username.len, out_user.len); + EXPECT_EQ(user_info_cases[i].expected_password.begin, out_pass.begin); + EXPECT_EQ(user_info_cases[i].expected_password.len, out_pass.len); + } +} + +TEST(URLCanonTest, Port) { + // We only need to test that the number gets properly put into the output + // buffer. The parser unit tests will test scanning the number correctly. + // + // Note that the CanonicalizePort will always prepend a colon to the output + // to separate it from the colon that it assumes preceeds it. + struct PortCase { + const char* input; + int default_port; + const char* expected; + Component expected_component; + bool expected_success; + } port_cases[] = { + // Invalid input should be copied w/ failure. + {"as df", 80, ":as%20df", Component(1, 7), false}, + {"-2", 80, ":-2", Component(1, 2), false}, + // Default port should be omitted. + {"80", 80, "", Component(0, -1), true}, + {"8080", 80, ":8080", Component(1, 4), true}, + // PORT_UNSPECIFIED should mean always keep the port. + {"80", PORT_UNSPECIFIED, ":80", Component(1, 2), true}, + }; + + for (size_t i = 0; i < ARRAYSIZE(port_cases); i++) { + int url_len = static_cast<int>(strlen(port_cases[i].input)); + Component in_comp(0, url_len); + Component out_comp; + std::string out_str; + StdStringCanonOutput output1(&out_str); + bool success = CanonicalizePort(port_cases[i].input, + in_comp, + port_cases[i].default_port, + &output1, + &out_comp); + output1.Complete(); + + EXPECT_EQ(port_cases[i].expected_success, success); + EXPECT_EQ(std::string(port_cases[i].expected), out_str); + EXPECT_EQ(port_cases[i].expected_component.begin, out_comp.begin); + EXPECT_EQ(port_cases[i].expected_component.len, out_comp.len); + + // Now try the wide version + out_str.clear(); + StdStringCanonOutput output2(&out_str); + base::string16 wide_input(ConvertUTF8ToUTF16(port_cases[i].input)); + success = CanonicalizePort(wide_input.c_str(), + in_comp, + port_cases[i].default_port, + &output2, + &out_comp); + output2.Complete(); + + EXPECT_EQ(port_cases[i].expected_success, success); + EXPECT_EQ(std::string(port_cases[i].expected), out_str); + EXPECT_EQ(port_cases[i].expected_component.begin, out_comp.begin); + EXPECT_EQ(port_cases[i].expected_component.len, out_comp.len); + } +} + +TEST(URLCanonTest, Path) { + DualComponentCase path_cases[] = { + // ----- path collapsing tests ----- + {"/././foo", L"/././foo", "/foo", Component(0, 4), true}, + {"/./.foo", L"/./.foo", "/.foo", Component(0, 5), true}, + {"/foo/.", L"/foo/.", "/foo/", Component(0, 5), true}, + {"/foo/./", L"/foo/./", "/foo/", Component(0, 5), true}, + // double dots followed by a slash or the end of the string count + {"/foo/bar/..", L"/foo/bar/..", "/foo/", Component(0, 5), true}, + {"/foo/bar/../", L"/foo/bar/../", "/foo/", Component(0, 5), true}, + // don't count double dots when they aren't followed by a slash + {"/foo/..bar", L"/foo/..bar", "/foo/..bar", Component(0, 10), true}, + // some in the middle + {"/foo/bar/../ton", L"/foo/bar/../ton", "/foo/ton", Component(0, 8), true}, + {"/foo/bar/../ton/../../a", L"/foo/bar/../ton/../../a", "/a", Component(0, 2), true}, + // we should not be able to go above the root + {"/foo/../../..", L"/foo/../../..", "/", Component(0, 1), true}, + {"/foo/../../../ton", L"/foo/../../../ton", "/ton", Component(0, 4), true}, + // escaped dots should be unescaped and treated the same as dots + {"/foo/%2e", L"/foo/%2e", "/foo/", Component(0, 5), true}, + {"/foo/%2e%2", L"/foo/%2e%2", "/foo/.%2", Component(0, 8), true}, + {"/foo/%2e./%2e%2e/.%2e/%2e.bar", L"/foo/%2e./%2e%2e/.%2e/%2e.bar", "/..bar", Component(0, 6), true}, + // Multiple slashes in a row should be preserved and treated like empty + // directory names. + {"////../..", L"////../..", "//", Component(0, 2), true}, + + // ----- escaping tests ----- + {"/foo", L"/foo", "/foo", Component(0, 4), true}, + // Valid escape sequence + {"/%20foo", L"/%20foo", "/%20foo", Component(0, 7), true}, + // Invalid escape sequence we should pass through unchanged. + {"/foo%", L"/foo%", "/foo%", Component(0, 5), true}, + {"/foo%2", L"/foo%2", "/foo%2", Component(0, 6), true}, + // Invalid escape sequence: bad characters should be treated the same as + // the sourrounding text, not as escaped (in this case, UTF-8). + {"/foo%2zbar", L"/foo%2zbar", "/foo%2zbar", Component(0, 10), true}, + {"/foo%2\xc2\xa9zbar", NULL, "/foo%2%C2%A9zbar", Component(0, 16), true}, + {NULL, L"/foo%2\xc2\xa9zbar", "/foo%2%C3%82%C2%A9zbar", Component(0, 22), true}, + // Regular characters that are escaped should be unescaped + {"/foo%41%7a", L"/foo%41%7a", "/fooAz", Component(0, 6), true}, + // Funny characters that are unescaped should be escaped + {"/foo\x09\x91%91", NULL, "/foo%09%91%91", Component(0, 13), true}, + {NULL, L"/foo\x09\x91%91", "/foo%09%C2%91%91", Component(0, 16), true}, + // Invalid characters that are escaped should cause a failure. + {"/foo%00%51", L"/foo%00%51", "/foo%00Q", Component(0, 8), false}, + // Some characters should be passed through unchanged regardless of esc. + {"/(%28:%3A%29)", L"/(%28:%3A%29)", "/(%28:%3A%29)", Component(0, 13), true}, + // Characters that are properly escaped should not have the case changed + // of hex letters. + {"/%3A%3a%3C%3c", L"/%3A%3a%3C%3c", "/%3A%3a%3C%3c", Component(0, 13), true}, + // Funny characters that are unescaped should be escaped + {"/foo\tbar", L"/foo\tbar", "/foo%09bar", Component(0, 10), true}, + // Backslashes should get converted to forward slashes + {"\\foo\\bar", L"\\foo\\bar", "/foo/bar", Component(0, 8), true}, + // Hashes found in paths (possibly only when the caller explicitly sets + // the path on an already-parsed URL) should be escaped. + {"/foo#bar", L"/foo#bar", "/foo%23bar", Component(0, 10), true}, + // %7f should be allowed and %3D should not be unescaped (these were wrong + // in a previous version). + {"/%7Ffp3%3Eju%3Dduvgw%3Dd", L"/%7Ffp3%3Eju%3Dduvgw%3Dd", "/%7Ffp3%3Eju%3Dduvgw%3Dd", Component(0, 24), true}, + // @ should be passed through unchanged (escaped or unescaped). + {"/@asdf%40", L"/@asdf%40", "/@asdf%40", Component(0, 9), true}, + + // ----- encoding tests ----- + // Basic conversions + {"/\xe4\xbd\xa0\xe5\xa5\xbd\xe4\xbd\xa0\xe5\xa5\xbd", L"/\x4f60\x597d\x4f60\x597d", "/%E4%BD%A0%E5%A5%BD%E4%BD%A0%E5%A5%BD", Component(0, 37), true}, + // Invalid unicode characters should fail. We only do validation on + // UTF-16 input, so this doesn't happen on 8-bit. + {"/\xef\xb7\x90zyx", NULL, "/%EF%B7%90zyx", Component(0, 13), true}, + {NULL, L"/\xfdd0zyx", "/%EF%BF%BDzyx", Component(0, 13), false}, + }; + + for (size_t i = 0; i < arraysize(path_cases); i++) { + if (path_cases[i].input8) { + int len = static_cast<int>(strlen(path_cases[i].input8)); + Component in_comp(0, len); + Component out_comp; + std::string out_str; + StdStringCanonOutput output(&out_str); + bool success = + CanonicalizePath(path_cases[i].input8, in_comp, &output, &out_comp); + output.Complete(); + + EXPECT_EQ(path_cases[i].expected_success, success); + EXPECT_EQ(path_cases[i].expected_component.begin, out_comp.begin); + EXPECT_EQ(path_cases[i].expected_component.len, out_comp.len); + EXPECT_EQ(path_cases[i].expected, out_str); + } + + if (path_cases[i].input16) { + base::string16 input16(WStringToUTF16(path_cases[i].input16)); + int len = static_cast<int>(input16.length()); + Component in_comp(0, len); + Component out_comp; + std::string out_str; + StdStringCanonOutput output(&out_str); + + bool success = + CanonicalizePath(input16.c_str(), in_comp, &output, &out_comp); + output.Complete(); + + EXPECT_EQ(path_cases[i].expected_success, success); + EXPECT_EQ(path_cases[i].expected_component.begin, out_comp.begin); + EXPECT_EQ(path_cases[i].expected_component.len, out_comp.len); + EXPECT_EQ(path_cases[i].expected, out_str); + } + } + + // Manual test: embedded NULLs should be escaped and the URL should be marked + // as invalid. + const char path_with_null[] = "/ab\0c"; + Component in_comp(0, 5); + Component out_comp; + + std::string out_str; + StdStringCanonOutput output(&out_str); + bool success = CanonicalizePath(path_with_null, in_comp, &output, &out_comp); + output.Complete(); + EXPECT_FALSE(success); + EXPECT_EQ("/ab%00c", out_str); +} + +TEST(URLCanonTest, Query) { + struct QueryCase { + const char* input8; + const wchar_t* input16; + const char* expected; + } query_cases[] = { + // Regular ASCII case. + {"foo=bar", L"foo=bar", "?foo=bar"}, + // Allow question marks in the query without escaping + {"as?df", L"as?df", "?as?df"}, + // Always escape '#' since it would mark the ref. + {"as#df", L"as#df", "?as%23df"}, + // Escape some questionable 8-bit characters, but never unescape. + {"\x02hello\x7f bye", L"\x02hello\x7f bye", "?%02hello%7F%20bye"}, + {"%40%41123", L"%40%41123", "?%40%41123"}, + // Chinese input/output + {"q=\xe4\xbd\xa0\xe5\xa5\xbd", L"q=\x4f60\x597d", "?q=%E4%BD%A0%E5%A5%BD"}, + // Invalid UTF-8/16 input should be replaced with invalid characters. + {"q=\xed\xed", L"q=\xd800\xd800", "?q=%EF%BF%BD%EF%BF%BD"}, + // Don't allow < or > because sometimes they are used for XSS if the + // URL is echoed in content. Firefox does this, IE doesn't. + {"q=<asdf>", L"q=<asdf>", "?q=%3Casdf%3E"}, + // Escape double quotemarks in the query. + {"q=\"asdf\"", L"q=\"asdf\"", "?q=%22asdf%22"}, + }; + + for (size_t i = 0; i < ARRAYSIZE(query_cases); i++) { + Component out_comp; + + if (query_cases[i].input8) { + int len = static_cast<int>(strlen(query_cases[i].input8)); + Component in_comp(0, len); + std::string out_str; + + StdStringCanonOutput output(&out_str); + CanonicalizeQuery(query_cases[i].input8, in_comp, NULL, &output, + &out_comp); + output.Complete(); + + EXPECT_EQ(query_cases[i].expected, out_str); + } + + if (query_cases[i].input16) { + base::string16 input16(WStringToUTF16(query_cases[i].input16)); + int len = static_cast<int>(input16.length()); + Component in_comp(0, len); + std::string out_str; + + StdStringCanonOutput output(&out_str); + CanonicalizeQuery(input16.c_str(), in_comp, NULL, &output, &out_comp); + output.Complete(); + + EXPECT_EQ(query_cases[i].expected, out_str); + } + } + + // Extra test for input with embedded NULL; + std::string out_str; + StdStringCanonOutput output(&out_str); + Component out_comp; + CanonicalizeQuery("a \x00z\x01", Component(0, 5), NULL, &output, &out_comp); + output.Complete(); + EXPECT_EQ("?a%20%00z%01", out_str); +} + +TEST(URLCanonTest, Ref) { + // Refs are trivial, it just checks the encoding. + DualComponentCase ref_cases[] = { + // Regular one, we shouldn't escape spaces, et al. + {"hello, world", L"hello, world", "#hello, world", Component(1, 12), true}, + // UTF-8/wide input should be preserved + {"\xc2\xa9", L"\xa9", "#\xc2\xa9", Component(1, 2), true}, + // Test a characer that takes > 16 bits (U+10300 = old italic letter A) + {"\xF0\x90\x8C\x80ss", L"\xd800\xdf00ss", "#\xF0\x90\x8C\x80ss", Component(1, 6), true}, + // Escaping should be preserved unchanged, even invalid ones + {"%41%a", L"%41%a", "#%41%a", Component(1, 5), true}, + // Invalid UTF-8/16 input should be flagged and the input made valid + {"\xc2", NULL, "#\xef\xbf\xbd", Component(1, 3), true}, + {NULL, L"\xd800\x597d", "#\xef\xbf\xbd\xe5\xa5\xbd", Component(1, 6), true}, + // Test a Unicode invalid character. + {"a\xef\xb7\x90", L"a\xfdd0", "#a\xef\xbf\xbd", Component(1, 4), true}, + // Refs can have # signs and we should preserve them. + {"asdf#qwer", L"asdf#qwer", "#asdf#qwer", Component(1, 9), true}, + {"#asdf", L"#asdf", "##asdf", Component(1, 5), true}, + }; + + for (size_t i = 0; i < arraysize(ref_cases); i++) { + // 8-bit input + if (ref_cases[i].input8) { + int len = static_cast<int>(strlen(ref_cases[i].input8)); + Component in_comp(0, len); + Component out_comp; + + std::string out_str; + StdStringCanonOutput output(&out_str); + CanonicalizeRef(ref_cases[i].input8, in_comp, &output, &out_comp); + output.Complete(); + + EXPECT_EQ(ref_cases[i].expected_component.begin, out_comp.begin); + EXPECT_EQ(ref_cases[i].expected_component.len, out_comp.len); + EXPECT_EQ(ref_cases[i].expected, out_str); + } + + // 16-bit input + if (ref_cases[i].input16) { + base::string16 input16(WStringToUTF16(ref_cases[i].input16)); + int len = static_cast<int>(input16.length()); + Component in_comp(0, len); + Component out_comp; + + std::string out_str; + StdStringCanonOutput output(&out_str); + CanonicalizeRef(input16.c_str(), in_comp, &output, &out_comp); + output.Complete(); + + EXPECT_EQ(ref_cases[i].expected_component.begin, out_comp.begin); + EXPECT_EQ(ref_cases[i].expected_component.len, out_comp.len); + EXPECT_EQ(ref_cases[i].expected, out_str); + } + } + + // Try one with an embedded NULL. It should be stripped. + const char null_input[5] = "ab\x00z"; + Component null_input_component(0, 4); + Component out_comp; + + std::string out_str; + StdStringCanonOutput output(&out_str); + CanonicalizeRef(null_input, null_input_component, &output, &out_comp); + output.Complete(); + + EXPECT_EQ(1, out_comp.begin); + EXPECT_EQ(3, out_comp.len); + EXPECT_EQ("#abz", out_str); +} + +TEST(URLCanonTest, CanonicalizeStandardURL) { + // The individual component canonicalize tests should have caught the cases + // for each of those components. Here, we just need to test that the various + // parts are included or excluded properly, and have the correct separators. + struct URLCase { + const char* input; + const char* expected; + bool expected_success; + } cases[] = { + {"http://www.google.com/foo?bar=baz#", "http://www.google.com/foo?bar=baz#", true}, + {"http://[www.google.com]/", "http://[www.google.com]/", false}, + {"ht\ttp:@www.google.com:80/;p?#", "ht%09tp://www.google.com:80/;p?#", false}, + {"http:////////user:@google.com:99?foo", "http://user@google.com:99/?foo", true}, + {"www.google.com", ":www.google.com/", true}, + {"http://192.0x00A80001", "http://192.168.0.1/", true}, + {"http://www/foo%2Ehtml", "http://www/foo.html", true}, + {"http://user:pass@/", "http://user:pass@/", false}, + {"http://%25DOMAIN:foobar@foodomain.com/", "http://%25DOMAIN:foobar@foodomain.com/", true}, + + // Backslashes should get converted to forward slashes. + {"http:\\\\www.google.com\\foo", "http://www.google.com/foo", true}, + + // Busted refs shouldn't make the whole thing fail. + {"http://www.google.com/asdf#\xc2", "http://www.google.com/asdf#\xef\xbf\xbd", true}, + + // Basic port tests. + {"http://foo:80/", "http://foo/", true}, + {"http://foo:81/", "http://foo:81/", true}, + {"httpa://foo:80/", "httpa://foo:80/", true}, + {"http://foo:-80/", "http://foo:-80/", false}, + + {"https://foo:443/", "https://foo/", true}, + {"https://foo:80/", "https://foo:80/", true}, + {"ftp://foo:21/", "ftp://foo/", true}, + {"ftp://foo:80/", "ftp://foo:80/", true}, + {"gopher://foo:70/", "gopher://foo/", true}, + {"gopher://foo:443/", "gopher://foo:443/", true}, + {"ws://foo:80/", "ws://foo/", true}, + {"ws://foo:81/", "ws://foo:81/", true}, + {"ws://foo:443/", "ws://foo:443/", true}, + {"ws://foo:815/", "ws://foo:815/", true}, + {"wss://foo:80/", "wss://foo:80/", true}, + {"wss://foo:81/", "wss://foo:81/", true}, + {"wss://foo:443/", "wss://foo/", true}, + {"wss://foo:815/", "wss://foo:815/", true}, + }; + + for (size_t i = 0; i < ARRAYSIZE(cases); i++) { + int url_len = static_cast<int>(strlen(cases[i].input)); + Parsed parsed; + ParseStandardURL(cases[i].input, url_len, &parsed); + + Parsed out_parsed; + std::string out_str; + StdStringCanonOutput output(&out_str); + bool success = CanonicalizeStandardURL( + cases[i].input, url_len, parsed, NULL, &output, &out_parsed); + output.Complete(); + + EXPECT_EQ(cases[i].expected_success, success); + EXPECT_EQ(cases[i].expected, out_str); + } +} + +// The codepath here is the same as for regular canonicalization, so we just +// need to test that things are replaced or not correctly. +TEST(URLCanonTest, ReplaceStandardURL) { + ReplaceCase replace_cases[] = { + // Common case of truncating the path. + {"http://www.google.com/foo?bar=baz#ref", NULL, NULL, NULL, NULL, NULL, "/", kDeleteComp, kDeleteComp, "http://www.google.com/"}, + // Replace everything + {"http://a:b@google.com:22/foo;bar?baz@cat", "https", "me", "pw", "host.com", "99", "/path", "query", "ref", "https://me:pw@host.com:99/path?query#ref"}, + // Replace nothing + {"http://a:b@google.com:22/foo?baz@cat", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "http://a:b@google.com:22/foo?baz@cat"}, + // Replace scheme with filesystem. The result is garbage, but you asked + // for it. + {"http://a:b@google.com:22/foo?baz@cat", "filesystem", NULL, NULL, NULL, NULL, NULL, NULL, NULL, "filesystem://a:b@google.com:22/foo?baz@cat"}, + }; + + for (size_t i = 0; i < arraysize(replace_cases); i++) { + const ReplaceCase& cur = replace_cases[i]; + int base_len = static_cast<int>(strlen(cur.base)); + Parsed parsed; + ParseStandardURL(cur.base, base_len, &parsed); + + Replacements<char> r; + typedef Replacements<char> R; // Clean up syntax. + + // Note that for the scheme we pass in a different clear function since + // there is no function to clear the scheme. + SetupReplComp(&R::SetScheme, &R::ClearRef, &r, cur.scheme); + SetupReplComp(&R::SetUsername, &R::ClearUsername, &r, cur.username); + SetupReplComp(&R::SetPassword, &R::ClearPassword, &r, cur.password); + SetupReplComp(&R::SetHost, &R::ClearHost, &r, cur.host); + SetupReplComp(&R::SetPort, &R::ClearPort, &r, cur.port); + SetupReplComp(&R::SetPath, &R::ClearPath, &r, cur.path); + SetupReplComp(&R::SetQuery, &R::ClearQuery, &r, cur.query); + SetupReplComp(&R::SetRef, &R::ClearRef, &r, cur.ref); + + std::string out_str; + StdStringCanonOutput output(&out_str); + Parsed out_parsed; + ReplaceStandardURL(replace_cases[i].base, parsed, r, NULL, &output, + &out_parsed); + output.Complete(); + + EXPECT_EQ(replace_cases[i].expected, out_str); + } + + // The path pointer should be ignored if the address is invalid. + { + const char src[] = "http://www.google.com/here_is_the_path"; + int src_len = static_cast<int>(strlen(src)); + + Parsed parsed; + ParseStandardURL(src, src_len, &parsed); + + // Replace the path to 0 length string. By using 1 as the string address, + // the test should get an access violation if it tries to dereference it. + Replacements<char> r; + r.SetPath(reinterpret_cast<char*>(0x00000001), Component(0, 0)); + std::string out_str1; + StdStringCanonOutput output1(&out_str1); + Parsed new_parsed; + ReplaceStandardURL(src, parsed, r, NULL, &output1, &new_parsed); + output1.Complete(); + EXPECT_STREQ("http://www.google.com/", out_str1.c_str()); + + // Same with an "invalid" path. + r.SetPath(reinterpret_cast<char*>(0x00000001), Component()); + std::string out_str2; + StdStringCanonOutput output2(&out_str2); + ReplaceStandardURL(src, parsed, r, NULL, &output2, &new_parsed); + output2.Complete(); + EXPECT_STREQ("http://www.google.com/", out_str2.c_str()); + } +} + +TEST(URLCanonTest, ReplaceFileURL) { + ReplaceCase replace_cases[] = { + // Replace everything + {"file:///C:/gaba?query#ref", NULL, NULL, NULL, "filer", NULL, "/foo", "b", "c", "file://filer/foo?b#c"}, + // Replace nothing + {"file:///C:/gaba?query#ref", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "file:///C:/gaba?query#ref"}, + // Clear non-path components (common) + {"file:///C:/gaba?query#ref", NULL, NULL, NULL, NULL, NULL, NULL, kDeleteComp, kDeleteComp, "file:///C:/gaba"}, + // Replace path with something that doesn't begin with a slash and make + // sure it gets added properly. + {"file:///C:/gaba", NULL, NULL, NULL, NULL, NULL, "interesting/", NULL, NULL, "file:///interesting/"}, + {"file:///home/gaba?query#ref", NULL, NULL, NULL, "filer", NULL, "/foo", "b", "c", "file://filer/foo?b#c"}, + {"file:///home/gaba?query#ref", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "file:///home/gaba?query#ref"}, + {"file:///home/gaba?query#ref", NULL, NULL, NULL, NULL, NULL, NULL, kDeleteComp, kDeleteComp, "file:///home/gaba"}, + {"file:///home/gaba", NULL, NULL, NULL, NULL, NULL, "interesting/", NULL, NULL, "file:///interesting/"}, + // Replace scheme -- shouldn't do anything. + {"file:///C:/gaba?query#ref", "http", NULL, NULL, NULL, NULL, NULL, NULL, NULL, "file:///C:/gaba?query#ref"}, + }; + + for (size_t i = 0; i < arraysize(replace_cases); i++) { + const ReplaceCase& cur = replace_cases[i]; + int base_len = static_cast<int>(strlen(cur.base)); + Parsed parsed; + ParseFileURL(cur.base, base_len, &parsed); + + Replacements<char> r; + typedef Replacements<char> R; // Clean up syntax. + SetupReplComp(&R::SetScheme, &R::ClearRef, &r, cur.scheme); + SetupReplComp(&R::SetUsername, &R::ClearUsername, &r, cur.username); + SetupReplComp(&R::SetPassword, &R::ClearPassword, &r, cur.password); + SetupReplComp(&R::SetHost, &R::ClearHost, &r, cur.host); + SetupReplComp(&R::SetPort, &R::ClearPort, &r, cur.port); + SetupReplComp(&R::SetPath, &R::ClearPath, &r, cur.path); + SetupReplComp(&R::SetQuery, &R::ClearQuery, &r, cur.query); + SetupReplComp(&R::SetRef, &R::ClearRef, &r, cur.ref); + + std::string out_str; + StdStringCanonOutput output(&out_str); + Parsed out_parsed; + ReplaceFileURL(cur.base, parsed, r, NULL, &output, &out_parsed); + output.Complete(); + + EXPECT_EQ(replace_cases[i].expected, out_str); + } +} + +TEST(URLCanonTest, ReplaceFileSystemURL) { + ReplaceCase replace_cases[] = { + // Replace everything in the outer URL. + {"filesystem:file:///temporary/gaba?query#ref", NULL, NULL, NULL, NULL, NULL, "/foo", "b", "c", "filesystem:file:///temporary/foo?b#c"}, + // Replace nothing + {"filesystem:file:///temporary/gaba?query#ref", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "filesystem:file:///temporary/gaba?query#ref"}, + // Clear non-path components (common) + {"filesystem:file:///temporary/gaba?query#ref", NULL, NULL, NULL, NULL, NULL, NULL, kDeleteComp, kDeleteComp, "filesystem:file:///temporary/gaba"}, + // Replace path with something that doesn't begin with a slash and make + // sure it gets added properly. + {"filesystem:file:///temporary/gaba?query#ref", NULL, NULL, NULL, NULL, NULL, "interesting/", NULL, NULL, "filesystem:file:///temporary/interesting/?query#ref"}, + // Replace scheme -- shouldn't do anything. + {"filesystem:http://u:p@bar.com/t/gaba?query#ref", "http", NULL, NULL, NULL, NULL, NULL, NULL, NULL, "filesystem:http://u:p@bar.com/t/gaba?query#ref"}, + // Replace username -- shouldn't do anything. + {"filesystem:http://u:p@bar.com/t/gaba?query#ref", NULL, "u2", NULL, NULL, NULL, NULL, NULL, NULL, "filesystem:http://u:p@bar.com/t/gaba?query#ref"}, + // Replace password -- shouldn't do anything. + {"filesystem:http://u:p@bar.com/t/gaba?query#ref", NULL, NULL, "pw2", NULL, NULL, NULL, NULL, NULL, "filesystem:http://u:p@bar.com/t/gaba?query#ref"}, + // Replace host -- shouldn't do anything. + {"filesystem:http://u:p@bar.com/t/gaba?query#ref", NULL, NULL, NULL, "foo.com", NULL, NULL, NULL, NULL, "filesystem:http://u:p@bar.com/t/gaba?query#ref"}, + // Replace port -- shouldn't do anything. + {"filesystem:http://u:p@bar.com:40/t/gaba?query#ref", NULL, NULL, NULL, NULL, "41", NULL, NULL, NULL, "filesystem:http://u:p@bar.com:40/t/gaba?query#ref"}, + }; + + for (size_t i = 0; i < arraysize(replace_cases); i++) { + const ReplaceCase& cur = replace_cases[i]; + int base_len = static_cast<int>(strlen(cur.base)); + Parsed parsed; + ParseFileSystemURL(cur.base, base_len, &parsed); + + Replacements<char> r; + typedef Replacements<char> R; // Clean up syntax. + SetupReplComp(&R::SetScheme, &R::ClearRef, &r, cur.scheme); + SetupReplComp(&R::SetUsername, &R::ClearUsername, &r, cur.username); + SetupReplComp(&R::SetPassword, &R::ClearPassword, &r, cur.password); + SetupReplComp(&R::SetHost, &R::ClearHost, &r, cur.host); + SetupReplComp(&R::SetPort, &R::ClearPort, &r, cur.port); + SetupReplComp(&R::SetPath, &R::ClearPath, &r, cur.path); + SetupReplComp(&R::SetQuery, &R::ClearQuery, &r, cur.query); + SetupReplComp(&R::SetRef, &R::ClearRef, &r, cur.ref); + + std::string out_str; + StdStringCanonOutput output(&out_str); + Parsed out_parsed; + ReplaceFileSystemURL(cur.base, parsed, r, NULL, &output, &out_parsed); + output.Complete(); + + EXPECT_EQ(replace_cases[i].expected, out_str); + } +} + +TEST(URLCanonTest, ReplacePathURL) { + ReplaceCase replace_cases[] = { + // Replace everything + {"data:foo", "javascript", NULL, NULL, NULL, NULL, "alert('foo?');", NULL, NULL, "javascript:alert('foo?');"}, + // Replace nothing + {"data:foo", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "data:foo"}, + // Replace one or the other + {"data:foo", "javascript", NULL, NULL, NULL, NULL, NULL, NULL, NULL, "javascript:foo"}, + {"data:foo", NULL, NULL, NULL, NULL, NULL, "bar", NULL, NULL, "data:bar"}, + {"data:foo", NULL, NULL, NULL, NULL, NULL, kDeleteComp, NULL, NULL, "data:"}, + }; + + for (size_t i = 0; i < arraysize(replace_cases); i++) { + const ReplaceCase& cur = replace_cases[i]; + int base_len = static_cast<int>(strlen(cur.base)); + Parsed parsed; + ParsePathURL(cur.base, base_len, false, &parsed); + + Replacements<char> r; + typedef Replacements<char> R; // Clean up syntax. + SetupReplComp(&R::SetScheme, &R::ClearRef, &r, cur.scheme); + SetupReplComp(&R::SetUsername, &R::ClearUsername, &r, cur.username); + SetupReplComp(&R::SetPassword, &R::ClearPassword, &r, cur.password); + SetupReplComp(&R::SetHost, &R::ClearHost, &r, cur.host); + SetupReplComp(&R::SetPort, &R::ClearPort, &r, cur.port); + SetupReplComp(&R::SetPath, &R::ClearPath, &r, cur.path); + SetupReplComp(&R::SetQuery, &R::ClearQuery, &r, cur.query); + SetupReplComp(&R::SetRef, &R::ClearRef, &r, cur.ref); + + std::string out_str; + StdStringCanonOutput output(&out_str); + Parsed out_parsed; + ReplacePathURL(cur.base, parsed, r, &output, &out_parsed); + output.Complete(); + + EXPECT_EQ(replace_cases[i].expected, out_str); + } +} + +TEST(URLCanonTest, ReplaceMailtoURL) { + ReplaceCase replace_cases[] = { + // Replace everything + {"mailto:jon@foo.com?body=sup", "mailto", NULL, NULL, NULL, NULL, "addr1", "to=tony", NULL, "mailto:addr1?to=tony"}, + // Replace nothing + {"mailto:jon@foo.com?body=sup", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "mailto:jon@foo.com?body=sup"}, + // Replace the path + {"mailto:jon@foo.com?body=sup", NULL, NULL, NULL, NULL, NULL, "jason", NULL, NULL, "mailto:jason?body=sup"}, + // Replace the query + {"mailto:jon@foo.com?body=sup", NULL, NULL, NULL, NULL, NULL, NULL, "custom=1", NULL, "mailto:jon@foo.com?custom=1"}, + // Replace the path and query + {"mailto:jon@foo.com?body=sup", NULL, NULL, NULL, NULL, NULL, "jason", "custom=1", NULL, "mailto:jason?custom=1"}, + // Set the query to empty (should leave trailing question mark) + {"mailto:jon@foo.com?body=sup", NULL, NULL, NULL, NULL, NULL, NULL, "", NULL, "mailto:jon@foo.com?"}, + // Clear the query + {"mailto:jon@foo.com?body=sup", NULL, NULL, NULL, NULL, NULL, NULL, "|", NULL, "mailto:jon@foo.com"}, + // Clear the path + {"mailto:jon@foo.com?body=sup", NULL, NULL, NULL, NULL, NULL, "|", NULL, NULL, "mailto:?body=sup"}, + // Clear the path + query + {"mailto:", NULL, NULL, NULL, NULL, NULL, "|", "|", NULL, "mailto:"}, + // Setting the ref should have no effect + {"mailto:addr1", NULL, NULL, NULL, NULL, NULL, NULL, NULL, "BLAH", "mailto:addr1"}, + }; + + for (size_t i = 0; i < arraysize(replace_cases); i++) { + const ReplaceCase& cur = replace_cases[i]; + int base_len = static_cast<int>(strlen(cur.base)); + Parsed parsed; + ParseMailtoURL(cur.base, base_len, &parsed); + + Replacements<char> r; + typedef Replacements<char> R; + SetupReplComp(&R::SetScheme, &R::ClearRef, &r, cur.scheme); + SetupReplComp(&R::SetUsername, &R::ClearUsername, &r, cur.username); + SetupReplComp(&R::SetPassword, &R::ClearPassword, &r, cur.password); + SetupReplComp(&R::SetHost, &R::ClearHost, &r, cur.host); + SetupReplComp(&R::SetPort, &R::ClearPort, &r, cur.port); + SetupReplComp(&R::SetPath, &R::ClearPath, &r, cur.path); + SetupReplComp(&R::SetQuery, &R::ClearQuery, &r, cur.query); + SetupReplComp(&R::SetRef, &R::ClearRef, &r, cur.ref); + + std::string out_str; + StdStringCanonOutput output(&out_str); + Parsed out_parsed; + ReplaceMailtoURL(cur.base, parsed, r, &output, &out_parsed); + output.Complete(); + + EXPECT_EQ(replace_cases[i].expected, out_str); + } +} + +TEST(URLCanonTest, CanonicalizeFileURL) { + struct URLCase { + const char* input; + const char* expected; + bool expected_success; + Component expected_host; + Component expected_path; + } cases[] = { +#ifdef _WIN32 + // Windows-style paths + {"file:c:\\foo\\bar.html", "file:///C:/foo/bar.html", true, Component(), Component(7, 16)}, + {" File:c|////foo\\bar.html", "file:///C:////foo/bar.html", true, Component(), Component(7, 19)}, + {"file:", "file:///", true, Component(), Component(7, 1)}, + {"file:UNChost/path", "file://unchost/path", true, Component(7, 7), Component(14, 5)}, + // CanonicalizeFileURL supports absolute Windows style paths for IE + // compatability. Note that the caller must decide that this is a file + // URL itself so it can call the file canonicalizer. This is usually + // done automatically as part of relative URL resolving. + {"c:\\foo\\bar", "file:///C:/foo/bar", true, Component(), Component(7, 11)}, + {"C|/foo/bar", "file:///C:/foo/bar", true, Component(), Component(7, 11)}, + {"/C|\\foo\\bar", "file:///C:/foo/bar", true, Component(), Component(7, 11)}, + {"//C|/foo/bar", "file:///C:/foo/bar", true, Component(), Component(7, 11)}, + {"//server/file", "file://server/file", true, Component(7, 6), Component(13, 5)}, + {"\\\\server\\file", "file://server/file", true, Component(7, 6), Component(13, 5)}, + {"/\\server/file", "file://server/file", true, Component(7, 6), Component(13, 5)}, + // We should preserve the number of slashes after the colon for IE + // compatability, except when there is none, in which case we should + // add one. + {"file:c:foo/bar.html", "file:///C:/foo/bar.html", true, Component(), Component(7, 16)}, + {"file:/\\/\\C:\\\\//foo\\bar.html", "file:///C:////foo/bar.html", true, Component(), Component(7, 19)}, + // Three slashes should be non-UNC, even if there is no drive spec (IE + // does this, which makes the resulting request invalid). + {"file:///foo/bar.txt", "file:///foo/bar.txt", true, Component(), Component(7, 12)}, + // TODO(brettw) we should probably fail for invalid host names, which + // would change the expected result on this test. We also currently allow + // colon even though it's probably invalid, because its currently the + // "natural" result of the way the canonicalizer is written. There doesn't + // seem to be a strong argument for why allowing it here would be bad, so + // we just tolerate it and the load will fail later. + {"FILE:/\\/\\7:\\\\//foo\\bar.html", "file://7:////foo/bar.html", false, Component(7, 2), Component(9, 16)}, + {"file:filer/home\\me", "file://filer/home/me", true, Component(7, 5), Component(12, 8)}, + // Make sure relative paths can't go above the "C:" + {"file:///C:/foo/../../../bar.html", "file:///C:/bar.html", true, Component(), Component(7, 12)}, + // Busted refs shouldn't make the whole thing fail. + {"file:///C:/asdf#\xc2", "file:///C:/asdf#\xef\xbf\xbd", true, Component(), Component(7, 8)}, +#else + // Unix-style paths + {"file:///home/me", "file:///home/me", true, Component(), Component(7, 8)}, + // Windowsy ones should get still treated as Unix-style. + {"file:c:\\foo\\bar.html", "file:///c:/foo/bar.html", true, Component(), Component(7, 16)}, + {"file:c|//foo\\bar.html", "file:///c%7C//foo/bar.html", true, Component(), Component(7, 19)}, + // file: tests from WebKit (LayoutTests/fast/loader/url-parse-1.html) + {"//", "file:///", true, Component(), Component(7, 1)}, + {"///", "file:///", true, Component(), Component(7, 1)}, + {"///test", "file:///test", true, Component(), Component(7, 5)}, + {"file://test", "file://test/", true, Component(7, 4), Component(11, 1)}, + {"file://localhost", "file://localhost/", true, Component(7, 9), Component(16, 1)}, + {"file://localhost/", "file://localhost/", true, Component(7, 9), Component(16, 1)}, + {"file://localhost/test", "file://localhost/test", true, Component(7, 9), Component(16, 5)}, +#endif // _WIN32 + }; + + for (size_t i = 0; i < ARRAYSIZE(cases); i++) { + int url_len = static_cast<int>(strlen(cases[i].input)); + Parsed parsed; + ParseFileURL(cases[i].input, url_len, &parsed); + + Parsed out_parsed; + std::string out_str; + StdStringCanonOutput output(&out_str); + bool success = CanonicalizeFileURL(cases[i].input, url_len, parsed, NULL, + &output, &out_parsed); + output.Complete(); + + EXPECT_EQ(cases[i].expected_success, success); + EXPECT_EQ(cases[i].expected, out_str); + + // Make sure the spec was properly identified, the file canonicalizer has + // different code for writing the spec. + EXPECT_EQ(0, out_parsed.scheme.begin); + EXPECT_EQ(4, out_parsed.scheme.len); + + EXPECT_EQ(cases[i].expected_host.begin, out_parsed.host.begin); + EXPECT_EQ(cases[i].expected_host.len, out_parsed.host.len); + + EXPECT_EQ(cases[i].expected_path.begin, out_parsed.path.begin); + EXPECT_EQ(cases[i].expected_path.len, out_parsed.path.len); + } +} + +TEST(URLCanonTest, CanonicalizeFileSystemURL) { + struct URLCase { + const char* input; + const char* expected; + bool expected_success; + } cases[] = { + {"Filesystem:htTp://www.Foo.com:80/tempoRary", "filesystem:http://www.foo.com/tempoRary/", true}, + {"filesystem:httpS://www.foo.com/temporary/", "filesystem:https://www.foo.com/temporary/", true}, + {"filesystem:http://www.foo.com//", "filesystem:http://www.foo.com//", false}, + {"filesystem:http://www.foo.com/persistent/bob?query#ref", "filesystem:http://www.foo.com/persistent/bob?query#ref", true}, + {"filesystem:fIle://\\temporary/", "filesystem:file:///temporary/", true}, + {"filesystem:fiLe:///temporary", "filesystem:file:///temporary/", true}, + {"filesystem:File:///temporary/Bob?qUery#reF", "filesystem:file:///temporary/Bob?qUery#reF", true}, + }; + + for (size_t i = 0; i < ARRAYSIZE(cases); i++) { + int url_len = static_cast<int>(strlen(cases[i].input)); + Parsed parsed; + ParseFileSystemURL(cases[i].input, url_len, &parsed); + + Parsed out_parsed; + std::string out_str; + StdStringCanonOutput output(&out_str); + bool success = CanonicalizeFileSystemURL(cases[i].input, url_len, parsed, + NULL, &output, &out_parsed); + output.Complete(); + + EXPECT_EQ(cases[i].expected_success, success); + EXPECT_EQ(cases[i].expected, out_str); + + // Make sure the spec was properly identified, the filesystem canonicalizer + // has different code for writing the spec. + EXPECT_EQ(0, out_parsed.scheme.begin); + EXPECT_EQ(10, out_parsed.scheme.len); + if (success) + EXPECT_GT(out_parsed.path.len, 0); + } +} + +TEST(URLCanonTest, CanonicalizePathURL) { + // Path URLs should get canonicalized schemes but nothing else. + struct PathCase { + const char* input; + const char* expected; + } path_cases[] = { + {"javascript:", "javascript:"}, + {"JavaScript:Foo", "javascript:Foo"}, + {":\":This /is interesting;?#", ":\":This /is interesting;?#"}, + }; + + for (size_t i = 0; i < ARRAYSIZE(path_cases); i++) { + int url_len = static_cast<int>(strlen(path_cases[i].input)); + Parsed parsed; + ParsePathURL(path_cases[i].input, url_len, true, &parsed); + + Parsed out_parsed; + std::string out_str; + StdStringCanonOutput output(&out_str); + bool success = CanonicalizePathURL(path_cases[i].input, url_len, parsed, + &output, &out_parsed); + output.Complete(); + + EXPECT_TRUE(success); + EXPECT_EQ(path_cases[i].expected, out_str); + + EXPECT_EQ(0, out_parsed.host.begin); + EXPECT_EQ(-1, out_parsed.host.len); + + // When we end with a colon at the end, there should be no path. + if (path_cases[i].input[url_len - 1] == ':') { + EXPECT_EQ(0, out_parsed.GetContent().begin); + EXPECT_EQ(-1, out_parsed.GetContent().len); + } + } +} + +TEST(URLCanonTest, CanonicalizeMailtoURL) { + struct URLCase { + const char* input; + const char* expected; + bool expected_success; + Component expected_path; + Component expected_query; + } cases[] = { + {"mailto:addr1", "mailto:addr1", true, Component(7, 5), Component()}, + {"mailto:addr1@foo.com", "mailto:addr1@foo.com", true, Component(7, 13), Component()}, + // Trailing whitespace is stripped. + {"MaIlTo:addr1 \t ", "mailto:addr1", true, Component(7, 5), Component()}, + {"MaIlTo:addr1?to=jon", "mailto:addr1?to=jon", true, Component(7, 5), Component(13,6)}, + {"mailto:addr1,addr2", "mailto:addr1,addr2", true, Component(7, 11), Component()}, + {"mailto:addr1, addr2", "mailto:addr1, addr2", true, Component(7, 12), Component()}, + {"mailto:addr1%2caddr2", "mailto:addr1%2caddr2", true, Component(7, 13), Component()}, + {"mailto:\xF0\x90\x8C\x80", "mailto:%F0%90%8C%80", true, Component(7, 12), Component()}, + // Null character should be escaped to %00 + {"mailto:addr1\0addr2?foo", "mailto:addr1%00addr2?foo", true, Component(7, 13), Component(21, 3)}, + // Invalid -- UTF-8 encoded surrogate value. + {"mailto:\xed\xa0\x80", "mailto:%EF%BF%BD", false, Component(7, 9), Component()}, + {"mailto:addr1?", "mailto:addr1?", true, Component(7, 5), Component(13, 0)}, + }; + + // Define outside of loop to catch bugs where components aren't reset + Parsed parsed; + Parsed out_parsed; + + for (size_t i = 0; i < ARRAYSIZE(cases); i++) { + int url_len = static_cast<int>(strlen(cases[i].input)); + if (i == 8) { + // The 9th test case purposely has a '\0' in it -- don't count it + // as the string terminator. + url_len = 22; + } + ParseMailtoURL(cases[i].input, url_len, &parsed); + + std::string out_str; + StdStringCanonOutput output(&out_str); + bool success = CanonicalizeMailtoURL(cases[i].input, url_len, parsed, + &output, &out_parsed); + output.Complete(); + + EXPECT_EQ(cases[i].expected_success, success); + EXPECT_EQ(cases[i].expected, out_str); + + // Make sure the spec was properly identified + EXPECT_EQ(0, out_parsed.scheme.begin); + EXPECT_EQ(6, out_parsed.scheme.len); + + EXPECT_EQ(cases[i].expected_path.begin, out_parsed.path.begin); + EXPECT_EQ(cases[i].expected_path.len, out_parsed.path.len); + + EXPECT_EQ(cases[i].expected_query.begin, out_parsed.query.begin); + EXPECT_EQ(cases[i].expected_query.len, out_parsed.query.len); + } +} + +#ifndef WIN32 + +TEST(URLCanonTest, _itoa_s) { + // We fill the buffer with 0xff to ensure that it's getting properly + // null-terminated. We also allocate one byte more than what we tell + // _itoa_s about, and ensure that the extra byte is untouched. + char buf[6]; + memset(buf, 0xff, sizeof(buf)); + EXPECT_EQ(0, _itoa_s(12, buf, sizeof(buf) - 1, 10)); + EXPECT_STREQ("12", buf); + EXPECT_EQ('\xFF', buf[3]); + + // Test the edge cases - exactly the buffer size and one over + memset(buf, 0xff, sizeof(buf)); + EXPECT_EQ(0, _itoa_s(1234, buf, sizeof(buf) - 1, 10)); + EXPECT_STREQ("1234", buf); + EXPECT_EQ('\xFF', buf[5]); + + memset(buf, 0xff, sizeof(buf)); + EXPECT_EQ(EINVAL, _itoa_s(12345, buf, sizeof(buf) - 1, 10)); + EXPECT_EQ('\xFF', buf[5]); // should never write to this location + + // Test the template overload (note that this will see the full buffer) + memset(buf, 0xff, sizeof(buf)); + EXPECT_EQ(0, _itoa_s(12, buf, 10)); + EXPECT_STREQ("12", buf); + EXPECT_EQ('\xFF', buf[3]); + + memset(buf, 0xff, sizeof(buf)); + EXPECT_EQ(0, _itoa_s(12345, buf, 10)); + EXPECT_STREQ("12345", buf); + + EXPECT_EQ(EINVAL, _itoa_s(123456, buf, 10)); + + // Test that radix 16 is supported. + memset(buf, 0xff, sizeof(buf)); + EXPECT_EQ(0, _itoa_s(1234, buf, sizeof(buf) - 1, 16)); + EXPECT_STREQ("4d2", buf); + EXPECT_EQ('\xFF', buf[5]); +} + +TEST(URLCanonTest, _itow_s) { + // We fill the buffer with 0xff to ensure that it's getting properly + // null-terminated. We also allocate one byte more than what we tell + // _itoa_s about, and ensure that the extra byte is untouched. + base::char16 buf[6]; + const char fill_mem = 0xff; + const base::char16 fill_char = 0xffff; + memset(buf, fill_mem, sizeof(buf)); + EXPECT_EQ(0, _itow_s(12, buf, sizeof(buf) / 2 - 1, 10)); + EXPECT_EQ(WStringToUTF16(L"12"), base::string16(buf)); + EXPECT_EQ(fill_char, buf[3]); + + // Test the edge cases - exactly the buffer size and one over + EXPECT_EQ(0, _itow_s(1234, buf, sizeof(buf) / 2 - 1, 10)); + EXPECT_EQ(WStringToUTF16(L"1234"), base::string16(buf)); + EXPECT_EQ(fill_char, buf[5]); + + memset(buf, fill_mem, sizeof(buf)); + EXPECT_EQ(EINVAL, _itow_s(12345, buf, sizeof(buf) / 2 - 1, 10)); + EXPECT_EQ(fill_char, buf[5]); // should never write to this location + + // Test the template overload (note that this will see the full buffer) + memset(buf, fill_mem, sizeof(buf)); + EXPECT_EQ(0, _itow_s(12, buf, 10)); + EXPECT_EQ(WStringToUTF16(L"12"), base::string16(buf)); + EXPECT_EQ(fill_char, buf[3]); + + memset(buf, fill_mem, sizeof(buf)); + EXPECT_EQ(0, _itow_s(12345, buf, 10)); + EXPECT_EQ(WStringToUTF16(L"12345"), base::string16(buf)); + + EXPECT_EQ(EINVAL, _itow_s(123456, buf, 10)); +} + +#endif // !WIN32 + +// Returns true if the given two structures are the same. +static bool ParsedIsEqual(const Parsed& a, const Parsed& b) { + return a.scheme.begin == b.scheme.begin && a.scheme.len == b.scheme.len && + a.username.begin == b.username.begin && a.username.len == b.username.len && + a.password.begin == b.password.begin && a.password.len == b.password.len && + a.host.begin == b.host.begin && a.host.len == b.host.len && + a.port.begin == b.port.begin && a.port.len == b.port.len && + a.path.begin == b.path.begin && a.path.len == b.path.len && + a.query.begin == b.query.begin && a.query.len == b.query.len && + a.ref.begin == b.ref.begin && a.ref.len == b.ref.len; +} + +TEST(URLCanonTest, ResolveRelativeURL) { + struct RelativeCase { + const char* base; // Input base URL: MUST BE CANONICAL + bool is_base_hier; // Is the base URL hierarchical + bool is_base_file; // Tells us if the base is a file URL. + const char* test; // Input URL to test against. + bool succeed_relative; // Whether we expect IsRelativeURL to succeed + bool is_rel; // Whether we expect |test| to be relative or not. + bool succeed_resolve; // Whether we expect ResolveRelativeURL to succeed. + const char* resolved; // What we expect in the result when resolving. + } rel_cases[] = { + // Basic absolute input. + {"http://host/a", true, false, "http://another/", true, false, false, NULL}, + {"http://host/a", true, false, "http:////another/", true, false, false, NULL}, + // Empty relative URLs should only remove the ref part of the URL, + // leaving the rest unchanged. + {"http://foo/bar", true, false, "", true, true, true, "http://foo/bar"}, + {"http://foo/bar#ref", true, false, "", true, true, true, "http://foo/bar"}, + {"http://foo/bar#", true, false, "", true, true, true, "http://foo/bar"}, + // Spaces at the ends of the relative path should be ignored. + {"http://foo/bar", true, false, " another ", true, true, true, "http://foo/another"}, + {"http://foo/bar", true, false, " . ", true, true, true, "http://foo/"}, + {"http://foo/bar", true, false, " \t ", true, true, true, "http://foo/bar"}, + // Matching schemes without two slashes are treated as relative. + {"http://host/a", true, false, "http:path", true, true, true, "http://host/path"}, + {"http://host/a/", true, false, "http:path", true, true, true, "http://host/a/path"}, + {"http://host/a", true, false, "http:/path", true, true, true, "http://host/path"}, + {"http://host/a", true, false, "HTTP:/path", true, true, true, "http://host/path"}, + // Nonmatching schemes are absolute. + {"http://host/a", true, false, "https:host2", true, false, false, NULL}, + {"http://host/a", true, false, "htto:/host2", true, false, false, NULL}, + // Absolute path input + {"http://host/a", true, false, "/b/c/d", true, true, true, "http://host/b/c/d"}, + {"http://host/a", true, false, "\\b\\c\\d", true, true, true, "http://host/b/c/d"}, + {"http://host/a", true, false, "/b/../c", true, true, true, "http://host/c"}, + {"http://host/a?b#c", true, false, "/b/../c", true, true, true, "http://host/c"}, + {"http://host/a", true, false, "\\b/../c?x#y", true, true, true, "http://host/c?x#y"}, + {"http://host/a?b#c", true, false, "/b/../c?x#y", true, true, true, "http://host/c?x#y"}, + // Relative path input + {"http://host/a", true, false, "b", true, true, true, "http://host/b"}, + {"http://host/a", true, false, "bc/de", true, true, true, "http://host/bc/de"}, + {"http://host/a/", true, false, "bc/de?query#ref", true, true, true, "http://host/a/bc/de?query#ref"}, + {"http://host/a/", true, false, ".", true, true, true, "http://host/a/"}, + {"http://host/a/", true, false, "..", true, true, true, "http://host/"}, + {"http://host/a/", true, false, "./..", true, true, true, "http://host/"}, + {"http://host/a/", true, false, "../.", true, true, true, "http://host/"}, + {"http://host/a/", true, false, "././.", true, true, true, "http://host/a/"}, + {"http://host/a?query#ref", true, false, "../../../foo", true, true, true, "http://host/foo"}, + // Query input + {"http://host/a", true, false, "?foo=bar", true, true, true, "http://host/a?foo=bar"}, + {"http://host/a?x=y#z", true, false, "?", true, true, true, "http://host/a?"}, + {"http://host/a?x=y#z", true, false, "?foo=bar#com", true, true, true, "http://host/a?foo=bar#com"}, + // Ref input + {"http://host/a", true, false, "#ref", true, true, true, "http://host/a#ref"}, + {"http://host/a#b", true, false, "#", true, true, true, "http://host/a#"}, + {"http://host/a?foo=bar#hello", true, false, "#bye", true, true, true, "http://host/a?foo=bar#bye"}, + // Non-hierarchical base: no relative handling. Relative input should + // error, and if a scheme is present, it should be treated as absolute. + {"data:foobar", false, false, "baz.html", false, false, false, NULL}, + {"data:foobar", false, false, "data:baz", true, false, false, NULL}, + {"data:foobar", false, false, "data:/base", true, false, false, NULL}, + // Non-hierarchical base: absolute input should succeed. + {"data:foobar", false, false, "http://host/", true, false, false, NULL}, + {"data:foobar", false, false, "http:host", true, false, false, NULL}, + // Invalid schemes should be treated as relative. + {"http://foo/bar", true, false, "./asd:fgh", true, true, true, "http://foo/asd:fgh"}, + {"http://foo/bar", true, false, ":foo", true, true, true, "http://foo/:foo"}, + {"http://foo/bar", true, false, " hello world", true, true, true, "http://foo/hello%20world"}, + {"data:asdf", false, false, ":foo", false, false, false, NULL}, + {"data:asdf", false, false, "bad(':foo')", false, false, false, NULL}, + // We should treat semicolons like any other character in URL resolving + {"http://host/a", true, false, ";foo", true, true, true, "http://host/;foo"}, + {"http://host/a;", true, false, ";foo", true, true, true, "http://host/;foo"}, + {"http://host/a", true, false, ";/../bar", true, true, true, "http://host/bar"}, + // Relative URLs can also be written as "//foo/bar" which is relative to + // the scheme. In this case, it would take the old scheme, so for http + // the example would resolve to "http://foo/bar". + {"http://host/a", true, false, "//another", true, true, true, "http://another/"}, + {"http://host/a", true, false, "//another/path?query#ref", true, true, true, "http://another/path?query#ref"}, + {"http://host/a", true, false, "///another/path", true, true, true, "http://another/path"}, + {"http://host/a", true, false, "//Another\\path", true, true, true, "http://another/path"}, + {"http://host/a", true, false, "//", true, true, false, "http:"}, + // IE will also allow one or the other to be a backslash to get the same + // behavior. + {"http://host/a", true, false, "\\/another/path", true, true, true, "http://another/path"}, + {"http://host/a", true, false, "/\\Another\\path", true, true, true, "http://another/path"}, +#ifdef WIN32 + // Resolving against Windows file base URLs. + {"file:///C:/foo", true, true, "http://host/", true, false, false, NULL}, + {"file:///C:/foo", true, true, "bar", true, true, true, "file:///C:/bar"}, + {"file:///C:/foo", true, true, "../../../bar.html", true, true, true, "file:///C:/bar.html"}, + {"file:///C:/foo", true, true, "/../bar.html", true, true, true, "file:///C:/bar.html"}, + // But two backslashes on Windows should be UNC so should be treated + // as absolute. + {"http://host/a", true, false, "\\\\another\\path", true, false, false, NULL}, + // IE doesn't support drive specs starting with two slashes. It fails + // immediately and doesn't even try to load. We fix it up to either + // an absolute path or UNC depending on what it looks like. + {"file:///C:/something", true, true, "//c:/foo", true, true, true, "file:///C:/foo"}, + {"file:///C:/something", true, true, "//localhost/c:/foo", true, true, true, "file:///C:/foo"}, + // Windows drive specs should be allowed and treated as absolute. + {"file:///C:/foo", true, true, "c:", true, false, false, NULL}, + {"file:///C:/foo", true, true, "c:/foo", true, false, false, NULL}, + {"http://host/a", true, false, "c:\\foo", true, false, false, NULL}, + // Relative paths with drive letters should be allowed when the base is + // also a file. + {"file:///C:/foo", true, true, "/z:/bar", true, true, true, "file:///Z:/bar"}, + // Treat absolute paths as being off of the drive. + {"file:///C:/foo", true, true, "/bar", true, true, true, "file:///C:/bar"}, + {"file://localhost/C:/foo", true, true, "/bar", true, true, true, "file://localhost/C:/bar"}, + {"file:///C:/foo/com/", true, true, "/bar", true, true, true, "file:///C:/bar"}, + // On Windows, two slashes without a drive letter when the base is a file + // means that the path is UNC. + {"file:///C:/something", true, true, "//somehost/path", true, true, true, "file://somehost/path"}, + {"file:///C:/something", true, true, "/\\//somehost/path", true, true, true, "file://somehost/path"}, +#else + // On Unix we fall back to relative behavior since there's nothing else + // reasonable to do. + {"http://host/a", true, false, "\\\\Another\\path", true, true, true, "http://another/path"}, +#endif + // Even on Windows, we don't allow relative drive specs when the base + // is not file. + {"http://host/a", true, false, "/c:\\foo", true, true, true, "http://host/c:/foo"}, + {"http://host/a", true, false, "//c:\\foo", true, true, true, "http://c/foo"}, + // Ensure that ports aren't allowed for hosts relative to a file url. + // Although the result string shows a host:port portion, the call to + // resolve the relative URL returns false, indicating parse failure, + // which is what is required. + {"file:///foo.txt", true, true, "//host:80/bar.txt", true, true, false, "file://host:80/bar.txt"}, + // Filesystem URL tests; filesystem URLs are only valid and relative if + // they have no scheme, e.g. "./index.html". There's no valid equivalent + // to http:index.html. + {"filesystem:http://host/t/path", true, false, "filesystem:http://host/t/path2", true, false, false, NULL}, + {"filesystem:http://host/t/path", true, false, "filesystem:https://host/t/path2", true, false, false, NULL}, + {"filesystem:http://host/t/path", true, false, "http://host/t/path2", true, false, false, NULL}, + {"http://host/t/path", true, false, "filesystem:http://host/t/path2", true, false, false, NULL}, + {"filesystem:http://host/t/path", true, false, "./path2", true, true, true, "filesystem:http://host/t/path2"}, + {"filesystem:http://host/t/path/", true, false, "path2", true, true, true, "filesystem:http://host/t/path/path2"}, + {"filesystem:http://host/t/path", true, false, "filesystem:http:path2", true, false, false, NULL}, + // Absolute URLs are still not relative to a non-standard base URL. + {"about:blank", false, false, "http://X/A", true, false, true, ""}, + {"about:blank", false, false, "content://content.Provider/", true, false, true, ""}, + }; + + for (size_t i = 0; i < ARRAYSIZE(rel_cases); i++) { + const RelativeCase& cur_case = rel_cases[i]; + + Parsed parsed; + int base_len = static_cast<int>(strlen(cur_case.base)); + if (cur_case.is_base_file) + ParseFileURL(cur_case.base, base_len, &parsed); + else if (cur_case.is_base_hier) + ParseStandardURL(cur_case.base, base_len, &parsed); + else + ParsePathURL(cur_case.base, base_len, false, &parsed); + + // First see if it is relative. + int test_len = static_cast<int>(strlen(cur_case.test)); + bool is_relative; + Component relative_component; + bool succeed_is_rel = IsRelativeURL( + cur_case.base, parsed, cur_case.test, test_len, cur_case.is_base_hier, + &is_relative, &relative_component); + + EXPECT_EQ(cur_case.succeed_relative, succeed_is_rel) << + "succeed is rel failure on " << cur_case.test; + EXPECT_EQ(cur_case.is_rel, is_relative) << + "is rel failure on " << cur_case.test; + // Now resolve it. + if (succeed_is_rel && is_relative && cur_case.is_rel) { + std::string resolved; + StdStringCanonOutput output(&resolved); + Parsed resolved_parsed; + + bool succeed_resolve = ResolveRelativeURL( + cur_case.base, parsed, cur_case.is_base_file, cur_case.test, + relative_component, NULL, &output, &resolved_parsed); + output.Complete(); + + EXPECT_EQ(cur_case.succeed_resolve, succeed_resolve); + EXPECT_EQ(cur_case.resolved, resolved) << " on " << cur_case.test; + + // Verify that the output parsed structure is the same as parsing a + // the URL freshly. + Parsed ref_parsed; + int resolved_len = static_cast<int>(resolved.size()); + if (cur_case.is_base_file) { + ParseFileURL(resolved.c_str(), resolved_len, &ref_parsed); + } else if (cur_case.is_base_hier) { + ParseStandardURL(resolved.c_str(), resolved_len, &ref_parsed); + } else { + ParsePathURL(resolved.c_str(), resolved_len, false, &ref_parsed); + } + EXPECT_TRUE(ParsedIsEqual(ref_parsed, resolved_parsed)); + } + } +} + +// It used to be when we did a replacement with a long buffer of UTF-16 +// characters, we would get invalid data in the URL. This is because the buffer +// it used to hold the UTF-8 data was resized, while some pointers were still +// kept to the old buffer that was removed. +TEST(URLCanonTest, ReplacementOverflow) { + const char src[] = "file:///C:/foo/bar"; + int src_len = static_cast<int>(strlen(src)); + Parsed parsed; + ParseFileURL(src, src_len, &parsed); + + // Override two components, the path with something short, and the query with + // sonething long enough to trigger the bug. + Replacements<base::char16> repl; + base::string16 new_query; + for (int i = 0; i < 4800; i++) + new_query.push_back('a'); + + base::string16 new_path(WStringToUTF16(L"/foo")); + repl.SetPath(new_path.c_str(), Component(0, 4)); + repl.SetQuery(new_query.c_str(), + Component(0, static_cast<int>(new_query.length()))); + + // Call ReplaceComponents on the string. It doesn't matter if we call it for + // standard URLs, file URLs, etc, since they will go to the same replacement + // function that was buggy. + Parsed repl_parsed; + std::string repl_str; + StdStringCanonOutput repl_output(&repl_str); + ReplaceFileURL(src, parsed, repl, NULL, &repl_output, &repl_parsed); + repl_output.Complete(); + + // Generate the expected string and check. + std::string expected("file:///foo?"); + for (size_t i = 0; i < new_query.length(); i++) + expected.push_back('a'); + EXPECT_TRUE(expected == repl_str); +} + +} // namespace url
diff --git a/url_constants.cc b/url_constants.cc new file mode 100644 index 0000000..9ef0e63 --- /dev/null +++ b/url_constants.cc
@@ -0,0 +1,27 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "url/url_constants.h" + +namespace url { + +const char kAboutBlankURL[] = "about:blank"; + +const char kAboutScheme[] = "about"; +const char kBlobScheme[] = "blob"; +const char kDataScheme[] = "data"; +const char kFileScheme[] = "file"; +const char kFileSystemScheme[] = "filesystem"; +const char kFtpScheme[] = "ftp"; +const char kGopherScheme[] = "gopher"; +const char kHttpScheme[] = "http"; +const char kHttpsScheme[] = "https"; +const char kJavaScriptScheme[] = "javascript"; +const char kMailToScheme[] = "mailto"; +const char kWsScheme[] = "ws"; +const char kWssScheme[] = "wss"; + +const char kStandardSchemeSeparator[] = "://"; + +} // namespace url
diff --git a/url_constants.h b/url_constants.h new file mode 100644 index 0000000..3228bbb --- /dev/null +++ b/url_constants.h
@@ -0,0 +1,33 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_CONSTANTS_H_ +#define URL_URL_CONSTANTS_H_ + +#include "url/url_export.h" + +namespace url { + +URL_EXPORT extern const char kAboutBlankURL[]; + +URL_EXPORT extern const char kAboutScheme[]; +URL_EXPORT extern const char kBlobScheme[]; +URL_EXPORT extern const char kDataScheme[]; +URL_EXPORT extern const char kFileScheme[]; +URL_EXPORT extern const char kFileSystemScheme[]; +URL_EXPORT extern const char kFtpScheme[]; +URL_EXPORT extern const char kGopherScheme[]; +URL_EXPORT extern const char kHttpScheme[]; +URL_EXPORT extern const char kHttpsScheme[]; +URL_EXPORT extern const char kJavaScriptScheme[]; +URL_EXPORT extern const char kMailToScheme[]; +URL_EXPORT extern const char kWsScheme[]; +URL_EXPORT extern const char kWssScheme[]; + +// Used to separate a standard scheme and the hostname: "://". +URL_EXPORT extern const char kStandardSchemeSeparator[]; + +} // namespace url + +#endif // URL_URL_CONSTANTS_H_
diff --git a/url_export.h b/url_export.h new file mode 100644 index 0000000..15ef19e --- /dev/null +++ b/url_export.h
@@ -0,0 +1,33 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_EXPORT_H_ +#define URL_URL_EXPORT_H_ + +#if defined(COMPONENT_BUILD) +#if defined(WIN32) + +#if defined(URL_IMPLEMENTATION) +#define URL_EXPORT __declspec(dllexport) +#else +#define URL_EXPORT __declspec(dllimport) +#endif // defined(URL_IMPLEMENTATION) + +#else // !defined(WIN32) + +#if defined(URL_IMPLEMENTATION) +#define URL_EXPORT __attribute__((visibility("default"))) +#else +#define URL_EXPORT +#endif // defined(URL_IMPLEMENTATION) + +#endif // defined(WIN32) + +#else // !defined(COMPONENT_BUILD) + +#define URL_EXPORT + +#endif // define(COMPONENT_BUILD) + +#endif // URL_URL_EXPORT_H_
diff --git a/url_file.h b/url_file.h new file mode 100644 index 0000000..540cb25 --- /dev/null +++ b/url_file.h
@@ -0,0 +1,83 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_FILE_H_ +#define URL_URL_FILE_H_ + +// Provides shared functions used by the internals of the parser and +// canonicalizer for file URLs. Do not use outside of these modules. + +#include "url/url_parse_internal.h" + +namespace url { + +#ifdef WIN32 + +// We allow both "c:" and "c|" as drive identifiers. +inline bool IsWindowsDriveSeparator(base::char16 ch) { + return ch == ':' || ch == '|'; +} +inline bool IsWindowsDriveLetter(base::char16 ch) { + return (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z'); +} + +#endif // WIN32 + +// Returns the index of the next slash in the input after the given index, or +// spec_len if the end of the input is reached. +template<typename CHAR> +inline int FindNextSlash(const CHAR* spec, int begin_index, int spec_len) { + int idx = begin_index; + while (idx < spec_len && !IsURLSlash(spec[idx])) + idx++; + return idx; +} + +#ifdef WIN32 + +// Returns true if the start_offset in the given spec looks like it begins a +// drive spec, for example "c:". This function explicitly handles start_offset +// values that are equal to or larger than the spec_len to simplify callers. +// +// If this returns true, the spec is guaranteed to have a valid drive letter +// plus a colon starting at |start_offset|. +template<typename CHAR> +inline bool DoesBeginWindowsDriveSpec(const CHAR* spec, int start_offset, + int spec_len) { + int remaining_len = spec_len - start_offset; + if (remaining_len < 2) + return false; // Not enough room. + if (!IsWindowsDriveLetter(spec[start_offset])) + return false; // Doesn't start with a valid drive letter. + if (!IsWindowsDriveSeparator(spec[start_offset + 1])) + return false; // Isn't followed with a drive separator. + return true; +} + +// Returns true if the start_offset in the given text looks like it begins a +// UNC path, for example "\\". This function explicitly handles start_offset +// values that are equal to or larger than the spec_len to simplify callers. +// +// When strict_slashes is set, this function will only accept backslashes as is +// standard for Windows. Otherwise, it will accept forward slashes as well +// which we use for a lot of URL handling. +template<typename CHAR> +inline bool DoesBeginUNCPath(const CHAR* text, + int start_offset, + int len, + bool strict_slashes) { + int remaining_len = len - start_offset; + if (remaining_len < 2) + return false; + + if (strict_slashes) + return text[start_offset] == '\\' && text[start_offset + 1] == '\\'; + return IsURLSlash(text[start_offset]) && IsURLSlash(text[start_offset + 1]); +} + +#endif // WIN32 + +} // namespace url + +#endif // URL_URL_FILE_H_
diff --git a/url_nacl.gyp b/url_nacl.gyp new file mode 100644 index 0000000..4af75b1 --- /dev/null +++ b/url_nacl.gyp
@@ -0,0 +1,37 @@ +# Copyright 2014 The Chromium Authors. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +{ + 'variables': { + 'chromium_code': 1, + }, + 'includes': [ + '../build/common_untrusted.gypi', + 'url_srcs.gypi', + ], + 'targets': [ + { + 'target_name': 'url_nacl', + 'type': 'none', + 'variables': { + 'nlib_target': 'liburl_nacl.a', + 'build_glibc': 0, + 'build_newlib': 0, + 'build_pnacl_newlib': 1, + }, + 'dependencies': [ + '../third_party/icu/icu_nacl.gyp:icudata_nacl', + '../third_party/icu/icu_nacl.gyp:icui18n_nacl', + '../third_party/icu/icu_nacl.gyp:icuuc_nacl', + ], + 'export_dependent_settings': [ + '../third_party/icu/icu_nacl.gyp:icui18n_nacl', + '../third_party/icu/icu_nacl.gyp:icuuc_nacl', + ], + 'sources': [ + '<@(gurl_sources)', + ], + }, # end of target 'url_nacl' + ], +}
diff --git a/url_parse.h b/url_parse.h new file mode 100644 index 0000000..3b9c546 --- /dev/null +++ b/url_parse.h
@@ -0,0 +1,11 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_PARSE_H_ +#define URL_URL_PARSE_H_ + +// TODO(tfarina): Remove this file when the callers are updated. +#include "url/third_party/mozilla/url_parse.h" + +#endif // URL_URL_PARSE_H_
diff --git a/url_parse_file.cc b/url_parse_file.cc new file mode 100644 index 0000000..c08ddc6 --- /dev/null +++ b/url_parse_file.cc
@@ -0,0 +1,222 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "base/logging.h" +#include "url/url_file.h" +#include "url/url_parse.h" +#include "url/url_parse_internal.h" + +// Interesting IE file:isms... +// +// INPUT OUTPUT +// ========================= ============================== +// file:/foo/bar file:///foo/bar +// The result here seems totally invalid!?!? This isn't UNC. +// +// file:/ +// file:// or any other number of slashes +// IE6 doesn't do anything at all if you click on this link. No error: +// nothing. IE6's history system seems to always color this link, so I'm +// guessing that it maps internally to the empty URL. +// +// C:\ file:///C:/ +// When on a file: URL source page, this link will work. When over HTTP, +// the file: URL will appear in the status bar but the link will not work +// (security restriction for all file URLs). +// +// file:foo/ file:foo/ (invalid?!?!?) +// file:/foo/ file:///foo/ (invalid?!?!?) +// file://foo/ file://foo/ (UNC to server "foo") +// file:///foo/ file:///foo/ (invalid, seems to be a file) +// file:////foo/ file://foo/ (UNC to server "foo") +// Any more than four slashes is also treated as UNC. +// +// file:C:/ file://C:/ +// file:/C:/ file://C:/ +// The number of slashes after "file:" don't matter if the thing following +// it looks like an absolute drive path. Also, slashes and backslashes are +// equally valid here. + +namespace url { + +namespace { + +// A subcomponent of DoInitFileURL, the input of this function should be a UNC +// path name, with the index of the first character after the slashes following +// the scheme given in |after_slashes|. This will initialize the host, path, +// query, and ref, and leave the other output components untouched +// (DoInitFileURL handles these for us). +template<typename CHAR> +void DoParseUNC(const CHAR* spec, + int after_slashes, + int spec_len, + Parsed* parsed) { + int next_slash = FindNextSlash(spec, after_slashes, spec_len); + if (next_slash == spec_len) { + // No additional slash found, as in "file://foo", treat the text as the + // host with no path (this will end up being UNC to server "foo"). + int host_len = spec_len - after_slashes; + if (host_len) + parsed->host = Component(after_slashes, host_len); + else + parsed->host.reset(); + parsed->path.reset(); + return; + } + +#ifdef WIN32 + // See if we have something that looks like a path following the first + // component. As in "file://localhost/c:/", we get "c:/" out. We want to + // treat this as a having no host but the path given. Works on Windows only. + if (DoesBeginWindowsDriveSpec(spec, next_slash + 1, spec_len)) { + parsed->host.reset(); + ParsePathInternal(spec, MakeRange(next_slash, spec_len), + &parsed->path, &parsed->query, &parsed->ref); + return; + } +#endif + + // Otherwise, everything up until that first slash we found is the host name, + // which will end up being the UNC host. For example "file://foo/bar.txt" + // will get a server name of "foo" and a path of "/bar". Later, on Windows, + // this should be treated as the filename "\\foo\bar.txt" in proper UNC + // notation. + int host_len = next_slash - after_slashes; + if (host_len) + parsed->host = MakeRange(after_slashes, next_slash); + else + parsed->host.reset(); + if (next_slash < spec_len) { + ParsePathInternal(spec, MakeRange(next_slash, spec_len), + &parsed->path, &parsed->query, &parsed->ref); + } else { + parsed->path.reset(); + } +} + +// A subcomponent of DoParseFileURL, the input should be a local file, with the +// beginning of the path indicated by the index in |path_begin|. This will +// initialize the host, path, query, and ref, and leave the other output +// components untouched (DoInitFileURL handles these for us). +template<typename CHAR> +void DoParseLocalFile(const CHAR* spec, + int path_begin, + int spec_len, + Parsed* parsed) { + parsed->host.reset(); + ParsePathInternal(spec, MakeRange(path_begin, spec_len), + &parsed->path, &parsed->query, &parsed->ref); +} + +// Backend for the external functions that operates on either char type. +// Handles cases where there is a scheme, but also when handed the first +// character following the "file:" at the beginning of the spec. If so, +// this is usually a slash, but needn't be; we allow paths like "file:c:\foo". +template<typename CHAR> +void DoParseFileURL(const CHAR* spec, int spec_len, Parsed* parsed) { + DCHECK(spec_len >= 0); + + // Get the parts we never use for file URLs out of the way. + parsed->username.reset(); + parsed->password.reset(); + parsed->port.reset(); + + // Many of the code paths don't set these, so it's convenient to just clear + // them. We'll write them in those cases we need them. + parsed->query.reset(); + parsed->ref.reset(); + + // Strip leading & trailing spaces and control characters. + int begin = 0; + TrimURL(spec, &begin, &spec_len); + + // Find the scheme, if any. + int num_slashes = CountConsecutiveSlashes(spec, begin, spec_len); + int after_scheme; + int after_slashes; +#ifdef WIN32 + // See how many slashes there are. We want to handle cases like UNC but also + // "/c:/foo". This is when there is no scheme, so we can allow pages to do + // links like "c:/foo/bar" or "//foo/bar". This is also called by the + // relative URL resolver when it determines there is an absolute URL, which + // may give us input like "/c:/foo". + after_slashes = begin + num_slashes; + if (DoesBeginWindowsDriveSpec(spec, after_slashes, spec_len)) { + // Windows path, don't try to extract the scheme (for example, "c:\foo"). + parsed->scheme.reset(); + after_scheme = after_slashes; + } else if (DoesBeginUNCPath(spec, begin, spec_len, false)) { + // Windows UNC path: don't try to extract the scheme, but keep the slashes. + parsed->scheme.reset(); + after_scheme = begin; + } else +#endif + { + // ExtractScheme doesn't understand the possibility of filenames with + // colons in them, in which case it returns the entire spec up to the + // colon as the scheme. So handle /foo.c:5 as a file but foo.c:5 as + // the foo.c: scheme. + if (!num_slashes && + ExtractScheme(&spec[begin], spec_len - begin, &parsed->scheme)) { + // Offset the results since we gave ExtractScheme a substring. + parsed->scheme.begin += begin; + after_scheme = parsed->scheme.end() + 1; + } else { + // No scheme found, remember that. + parsed->scheme.reset(); + after_scheme = begin; + } + } + + // Handle empty specs ones that contain only whitespace or control chars, + // or that are just the scheme (for example "file:"). + if (after_scheme == spec_len) { + parsed->host.reset(); + parsed->path.reset(); + return; + } + + num_slashes = CountConsecutiveSlashes(spec, after_scheme, spec_len); + after_slashes = after_scheme + num_slashes; +#ifdef WIN32 + // Check whether the input is a drive again. We checked above for windows + // drive specs, but that's only at the very beginning to see if we have a + // scheme at all. This test will be duplicated in that case, but will + // additionally handle all cases with a real scheme such as "file:///C:/". + if (!DoesBeginWindowsDriveSpec(spec, after_slashes, spec_len) && + num_slashes != 3) { + // Anything not beginning with a drive spec ("c:\") on Windows is treated + // as UNC, with the exception of three slashes which always means a file. + // Even IE7 treats file:///foo/bar as "/foo/bar", which then fails. + DoParseUNC(spec, after_slashes, spec_len, parsed); + return; + } +#else + // file: URL with exactly 2 slashes is considered to have a host component. + if (num_slashes == 2) { + DoParseUNC(spec, after_slashes, spec_len, parsed); + return; + } +#endif // WIN32 + + // Easy and common case, the full path immediately follows the scheme + // (modulo slashes), as in "file://c:/foo". Just treat everything from + // there to the end as the path. Empty hosts have 0 length instead of -1. + // We include the last slash as part of the path if there is one. + DoParseLocalFile(spec, + num_slashes > 0 ? after_scheme + num_slashes - 1 : after_scheme, + spec_len, parsed); +} + +} // namespace + +void ParseFileURL(const char* url, int url_len, Parsed* parsed) { + DoParseFileURL(url, url_len, parsed); +} + +void ParseFileURL(const base::char16* url, int url_len, Parsed* parsed) { + DoParseFileURL(url, url_len, parsed); +} + +} // namespace url
diff --git a/url_parse_internal.h b/url_parse_internal.h new file mode 100644 index 0000000..4070b7e --- /dev/null +++ b/url_parse_internal.h
@@ -0,0 +1,91 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_PARSE_INTERNAL_H_ +#define URL_URL_PARSE_INTERNAL_H_ + +// Contains common inline helper functions used by the URL parsing routines. + +#include "url/url_parse.h" + +namespace url { + +// We treat slashes and backslashes the same for IE compatability. +inline bool IsURLSlash(base::char16 ch) { + return ch == '/' || ch == '\\'; +} + +// Returns true if we should trim this character from the URL because it is a +// space or a control character. +inline bool ShouldTrimFromURL(base::char16 ch) { + return ch <= ' '; +} + +// Given an already-initialized begin index and length, this shrinks the range +// to eliminate "should-be-trimmed" characters. Note that the length does *not* +// indicate the length of untrimmed data from |*begin|, but rather the position +// in the input string (so the string starts at character |*begin| in the spec, +// and goes until |*len|). +template<typename CHAR> +inline void TrimURL(const CHAR* spec, int* begin, int* len, + bool trim_path_end = true) { + // Strip leading whitespace and control characters. + while (*begin < *len && ShouldTrimFromURL(spec[*begin])) + (*begin)++; + + if (trim_path_end) { + // Strip trailing whitespace and control characters. We need the >i test + // for when the input string is all blanks; we don't want to back past the + // input. + while (*len > *begin && ShouldTrimFromURL(spec[*len - 1])) + (*len)--; + } +} + +// Counts the number of consecutive slashes starting at the given offset +// in the given string of the given length. +template<typename CHAR> +inline int CountConsecutiveSlashes(const CHAR *str, + int begin_offset, int str_len) { + int count = 0; + while (begin_offset + count < str_len && + IsURLSlash(str[begin_offset + count])) + ++count; + return count; +} + +// Internal functions in url_parse.cc that parse the path, that is, everything +// following the authority section. The input is the range of everything +// following the authority section, and the output is the identified ranges. +// +// This is designed for the file URL parser or other consumers who may do +// special stuff at the beginning, but want regular path parsing, it just +// maps to the internal parsing function for paths. +void ParsePathInternal(const char* spec, + const Component& path, + Component* filepath, + Component* query, + Component* ref); +void ParsePathInternal(const base::char16* spec, + const Component& path, + Component* filepath, + Component* query, + Component* ref); + + +// Given a spec and a pointer to the character after the colon following the +// scheme, this parses it and fills in the structure, Every item in the parsed +// structure is filled EXCEPT for the scheme, which is untouched. +void ParseAfterScheme(const char* spec, + int spec_len, + int after_scheme, + Parsed* parsed); +void ParseAfterScheme(const base::char16* spec, + int spec_len, + int after_scheme, + Parsed* parsed); + +} // namespace url + +#endif // URL_URL_PARSE_INTERNAL_H_
diff --git a/url_parse_unittest.cc b/url_parse_unittest.cc new file mode 100644 index 0000000..a8b7f85 --- /dev/null +++ b/url_parse_unittest.cc
@@ -0,0 +1,690 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "url/url_parse.h" + +#include "base/basictypes.h" +#include "testing/gtest/include/gtest/gtest.h" +#include "url/url_parse.h" + +// Some implementations of base/basictypes.h may define ARRAYSIZE. +// If it's not defined, we define it to the ARRAYSIZE_UNSAFE macro +// which is in our version of basictypes.h. +#ifndef ARRAYSIZE +#define ARRAYSIZE ARRAYSIZE_UNSAFE +#endif + +// Interesting IE file:isms... +// +// file:/foo/bar file:///foo/bar +// The result here seems totally invalid!?!? This isn't UNC. +// +// file:/ +// file:// or any other number of slashes +// IE6 doesn't do anything at all if you click on this link. No error: +// nothing. IE6's history system seems to always color this link, so I'm +// guessing that it maps internally to the empty URL. +// +// C:\ file:///C:/ +// / file:///C:/ +// /foo file:///C:/foo +// Interestingly, IE treats "/" as an alias for "c:\", which makes sense, +// but is weird to think about on Windows. +// +// file:foo/ file:foo/ (invalid?!?!?) +// file:/foo/ file:///foo/ (invalid?!?!?) +// file://foo/ file://foo/ (UNC to server "foo") +// file:///foo/ file:///foo/ (invalid) +// file:////foo/ file://foo/ (UNC to server "foo") +// Any more than four slashes is also treated as UNC. +// +// file:C:/ file://C:/ +// file:/C:/ file://C:/ +// The number of slashes after "file:" don't matter if the thing following +// it looks like an absolute drive path. Also, slashes and backslashes are +// equally valid here. + +namespace url { +namespace { + +// Used for regular URL parse cases. +struct URLParseCase { + const char* input; + + const char* scheme; + const char* username; + const char* password; + const char* host; + int port; + const char* path; + const char* query; + const char* ref; +}; + +// Simpler version of URLParseCase for testing path URLs. +struct PathURLParseCase { + const char* input; + + const char* scheme; + const char* path; +}; + +// Simpler version of URLParseCase for testing mailto URLs. +struct MailtoURLParseCase { + const char* input; + + const char* scheme; + const char* path; + const char* query; +}; + +// More complicated version of URLParseCase for testing filesystem URLs. +struct FileSystemURLParseCase { + const char* input; + + const char* inner_scheme; + const char* inner_username; + const char* inner_password; + const char* inner_host; + int inner_port; + const char* inner_path; + const char* path; + const char* query; + const char* ref; +}; + +bool ComponentMatches(const char* input, + const char* reference, + const Component& component) { + // If the component is nonexistant (length == -1), it should begin at 0. + EXPECT_TRUE(component.len >= 0 || component.len == -1); + + // Begin should be valid. + EXPECT_LE(0, component.begin); + + // A NULL reference means the component should be nonexistant. + if (!reference) + return component.len == -1; + if (component.len < 0) + return false; // Reference is not NULL but we don't have anything + + if (strlen(reference) != static_cast<size_t>(component.len)) + return false; // Lengths don't match + + // Now check the actual characters. + return strncmp(reference, &input[component.begin], component.len) == 0; +} + +void ExpectInvalidComponent(const Component& component) { + EXPECT_EQ(0, component.begin); + EXPECT_EQ(-1, component.len); +} + +// Parsed ---------------------------------------------------------------------- + +TEST(URLParser, Length) { + const char* length_cases[] = { + // One with everything in it. + "http://user:pass@host:99/foo?bar#baz", + // One with nothing in it. + "", + // Working backwards, let's start taking off stuff from the full one. + "http://user:pass@host:99/foo?bar#", + "http://user:pass@host:99/foo?bar", + "http://user:pass@host:99/foo?", + "http://user:pass@host:99/foo", + "http://user:pass@host:99/", + "http://user:pass@host:99", + "http://user:pass@host:", + "http://user:pass@host", + "http://host", + "http://user@", + "http:", + }; + for (size_t i = 0; i < arraysize(length_cases); i++) { + int true_length = static_cast<int>(strlen(length_cases[i])); + + Parsed parsed; + ParseStandardURL(length_cases[i], true_length, &parsed); + + EXPECT_EQ(true_length, parsed.Length()); + } +} + +TEST(URLParser, CountCharactersBefore) { + struct CountCase { + const char* url; + Parsed::ComponentType component; + bool include_delimiter; + int expected_count; + } count_cases[] = { + // Test each possibility in the case where all components are present. + // 0 1 2 + // 0123456789012345678901 + {"http://u:p@h:8/p?q#r", Parsed::SCHEME, true, 0}, + {"http://u:p@h:8/p?q#r", Parsed::SCHEME, false, 0}, + {"http://u:p@h:8/p?q#r", Parsed::USERNAME, true, 7}, + {"http://u:p@h:8/p?q#r", Parsed::USERNAME, false, 7}, + {"http://u:p@h:8/p?q#r", Parsed::PASSWORD, true, 9}, + {"http://u:p@h:8/p?q#r", Parsed::PASSWORD, false, 9}, + {"http://u:p@h:8/p?q#r", Parsed::HOST, true, 11}, + {"http://u:p@h:8/p?q#r", Parsed::HOST, false, 11}, + {"http://u:p@h:8/p?q#r", Parsed::PORT, true, 12}, + {"http://u:p@h:8/p?q#r", Parsed::PORT, false, 13}, + {"http://u:p@h:8/p?q#r", Parsed::PATH, false, 14}, + {"http://u:p@h:8/p?q#r", Parsed::PATH, true, 14}, + {"http://u:p@h:8/p?q#r", Parsed::QUERY, true, 16}, + {"http://u:p@h:8/p?q#r", Parsed::QUERY, false, 17}, + {"http://u:p@h:8/p?q#r", Parsed::REF, true, 18}, + {"http://u:p@h:8/p?q#r", Parsed::REF, false, 19}, + // Now test when the requested component is missing. + {"http://u:p@h:8/p?", Parsed::REF, true, 17}, + {"http://u:p@h:8/p?q", Parsed::REF, true, 18}, + {"http://u:p@h:8/p#r", Parsed::QUERY, true, 16}, + {"http://u:p@h:8#r", Parsed::PATH, true, 14}, + {"http://u:p@h/", Parsed::PORT, true, 12}, + {"http://u:p@/", Parsed::HOST, true, 11}, + // This case is a little weird. It will report that the password would + // start where the host begins. This is arguably correct, although you + // could also argue that it should start at the '@' sign. Doing it + // starting with the '@' sign is actually harder, so we don't bother. + {"http://u@h/", Parsed::PASSWORD, true, 9}, + {"http://h/", Parsed::USERNAME, true, 7}, + {"http:", Parsed::USERNAME, true, 5}, + {"", Parsed::SCHEME, true, 0}, + // Make sure a random component still works when there's nothing there. + {"", Parsed::REF, true, 0}, + // File URLs are special with no host, so we test those. + {"file:///c:/foo", Parsed::USERNAME, true, 7}, + {"file:///c:/foo", Parsed::PASSWORD, true, 7}, + {"file:///c:/foo", Parsed::HOST, true, 7}, + {"file:///c:/foo", Parsed::PATH, true, 7}, + }; + for (size_t i = 0; i < ARRAYSIZE(count_cases); i++) { + int length = static_cast<int>(strlen(count_cases[i].url)); + + // Simple test to distinguish file and standard URLs. + Parsed parsed; + if (length > 0 && count_cases[i].url[0] == 'f') + ParseFileURL(count_cases[i].url, length, &parsed); + else + ParseStandardURL(count_cases[i].url, length, &parsed); + + int chars_before = parsed.CountCharactersBefore( + count_cases[i].component, count_cases[i].include_delimiter); + EXPECT_EQ(count_cases[i].expected_count, chars_before); + } +} + +// Standard -------------------------------------------------------------------- + +// Input Scheme Usrname Passwd Host Port Path Query Ref +// ------------------------------------ ------- ------- ---------- ------------ --- ---------- ------------ ----- +static URLParseCase cases[] = { + // Regular URL with all the parts +{"http://user:pass@foo:21/bar;par?b#c", "http", "user", "pass", "foo", 21, "/bar;par","b", "c"}, + + // Known schemes should lean towards authority identification +{"http:foo.com", "http", NULL, NULL, "foo.com", -1, NULL, NULL, NULL}, + + // Spaces! +{"\t :foo.com \n", "", NULL, NULL, "foo.com", -1, NULL, NULL, NULL}, +{" foo.com ", NULL, NULL, NULL, "foo.com", -1, NULL, NULL, NULL}, +{"a:\t foo.com", "a", NULL, NULL, "\t foo.com", -1, NULL, NULL, NULL}, +{"http://f:21/ b ? d # e ", "http", NULL, NULL, "f", 21, "/ b ", " d ", " e"}, + + // Invalid port numbers should be identified and turned into -2, empty port + // numbers should be -1. Spaces aren't allowed in port numbers +{"http://f:/c", "http", NULL, NULL, "f", -1, "/c", NULL, NULL}, +{"http://f:0/c", "http", NULL, NULL, "f", 0, "/c", NULL, NULL}, +{"http://f:00000000000000/c", "http", NULL, NULL, "f", 0, "/c", NULL, NULL}, +{"http://f:00000000000000000000080/c", "http", NULL, NULL, "f", 80, "/c", NULL, NULL}, +{"http://f:b/c", "http", NULL, NULL, "f", -2, "/c", NULL, NULL}, +{"http://f: /c", "http", NULL, NULL, "f", -2, "/c", NULL, NULL}, +{"http://f:\n/c", "http", NULL, NULL, "f", -2, "/c", NULL, NULL}, +{"http://f:fifty-two/c", "http", NULL, NULL, "f", -2, "/c", NULL, NULL}, +{"http://f:999999/c", "http", NULL, NULL, "f", -2, "/c", NULL, NULL}, +{"http://f: 21 / b ? d # e ", "http", NULL, NULL, "f", -2, "/ b ", " d ", " e"}, + + // Creative URLs missing key elements +{"", NULL, NULL, NULL, NULL, -1, NULL, NULL, NULL}, +{" \t", NULL, NULL, NULL, NULL, -1, NULL, NULL, NULL}, +{":foo.com/", "", NULL, NULL, "foo.com", -1, "/", NULL, NULL}, +{":foo.com\\", "", NULL, NULL, "foo.com", -1, "\\", NULL, NULL}, +{":", "", NULL, NULL, NULL, -1, NULL, NULL, NULL}, +{":a", "", NULL, NULL, "a", -1, NULL, NULL, NULL}, +{":/", "", NULL, NULL, NULL, -1, NULL, NULL, NULL}, +{":\\", "", NULL, NULL, NULL, -1, NULL, NULL, NULL}, +{":#", "", NULL, NULL, NULL, -1, NULL, NULL, ""}, +{"#", NULL, NULL, NULL, NULL, -1, NULL, NULL, ""}, +{"#/", NULL, NULL, NULL, NULL, -1, NULL, NULL, "/"}, +{"#\\", NULL, NULL, NULL, NULL, -1, NULL, NULL, "\\"}, +{"#;?", NULL, NULL, NULL, NULL, -1, NULL, NULL, ";?"}, +{"?", NULL, NULL, NULL, NULL, -1, NULL, "", NULL}, +{"/", NULL, NULL, NULL, NULL, -1, NULL, NULL, NULL}, +{":23", "", NULL, NULL, "23", -1, NULL, NULL, NULL}, +{"/:23", "/", NULL, NULL, "23", -1, NULL, NULL, NULL}, +{"//", NULL, NULL, NULL, NULL, -1, NULL, NULL, NULL}, +{"::", "", NULL, NULL, NULL, -1, NULL, NULL, NULL}, +{"::23", "", NULL, NULL, NULL, 23, NULL, NULL, NULL}, +{"foo://", "foo", NULL, NULL, NULL, -1, NULL, NULL, NULL}, + + // Username/passwords and things that look like them +{"http://a:b@c:29/d", "http", "a", "b", "c", 29, "/d", NULL, NULL}, +{"http::@c:29", "http", "", "", "c", 29, NULL, NULL, NULL}, + // ... "]" in the password field isn't allowed, but we tolerate it here... +{"http://&a:foo(b]c@d:2/", "http", "&a", "foo(b]c", "d", 2, "/", NULL, NULL}, +{"http://::@c@d:2", "http", "", ":@c", "d", 2, NULL, NULL, NULL}, +{"http://foo.com:b@d/", "http", "foo.com", "b", "d", -1, "/", NULL, NULL}, + +{"http://foo.com/\\@", "http", NULL, NULL, "foo.com", -1, "/\\@", NULL, NULL}, +{"http:\\\\foo.com\\", "http", NULL, NULL, "foo.com", -1, "\\", NULL, NULL}, +{"http:\\\\a\\b:c\\d@foo.com\\", "http", NULL, NULL, "a", -1, "\\b:c\\d@foo.com\\", NULL, NULL}, + + // Tolerate different numbers of slashes. +{"foo:/", "foo", NULL, NULL, NULL, -1, NULL, NULL, NULL}, +{"foo:/bar.com/", "foo", NULL, NULL, "bar.com", -1, "/", NULL, NULL}, +{"foo://///////", "foo", NULL, NULL, NULL, -1, NULL, NULL, NULL}, +{"foo://///////bar.com/", "foo", NULL, NULL, "bar.com", -1, "/", NULL, NULL}, +{"foo:////://///", "foo", NULL, NULL, NULL, -1, "/////", NULL, NULL}, + + // Raw file paths on Windows aren't handled by the parser. +{"c:/foo", "c", NULL, NULL, "foo", -1, NULL, NULL, NULL}, +{"//foo/bar", NULL, NULL, NULL, "foo", -1, "/bar", NULL, NULL}, + + // Use the first question mark for the query and the ref. +{"http://foo/path;a??e#f#g", "http", NULL, NULL, "foo", -1, "/path;a", "?e", "f#g"}, +{"http://foo/abcd?efgh?ijkl", "http", NULL, NULL, "foo", -1, "/abcd", "efgh?ijkl", NULL}, +{"http://foo/abcd#foo?bar", "http", NULL, NULL, "foo", -1, "/abcd", NULL, "foo?bar"}, + + // IPv6, check also interesting uses of colons. +{"[61:24:74]:98", "[61", NULL, NULL, "24:74]", 98, NULL, NULL, NULL}, +{"http://[61:27]:98", "http", NULL, NULL, "[61:27]", 98, NULL, NULL, NULL}, +{"http:[61:27]/:foo", "http", NULL, NULL, "[61:27]", -1, "/:foo", NULL, NULL}, +{"http://[1::2]:3:4", "http", NULL, NULL, "[1::2]:3", 4, NULL, NULL, NULL}, + + // Partially-complete IPv6 literals, and related cases. +{"http://2001::1", "http", NULL, NULL, "2001:", 1, NULL, NULL, NULL}, +{"http://[2001::1", "http", NULL, NULL, "[2001::1", -1, NULL, NULL, NULL}, +{"http://2001::1]", "http", NULL, NULL, "2001::1]", -1, NULL, NULL, NULL}, +{"http://2001::1]:80", "http", NULL, NULL, "2001::1]", 80, NULL, NULL, NULL}, +{"http://[2001::1]", "http", NULL, NULL, "[2001::1]", -1, NULL, NULL, NULL}, +{"http://[2001::1]:80", "http", NULL, NULL, "[2001::1]", 80, NULL, NULL, NULL}, +{"http://[[::]]", "http", NULL, NULL, "[[::]]", -1, NULL, NULL, NULL}, + +}; + +TEST(URLParser, Standard) { + // Declared outside for loop to try to catch cases in init() where we forget + // to reset something that is reset by the constructor. + Parsed parsed; + for (size_t i = 0; i < arraysize(cases); i++) { + const char* url = cases[i].input; + ParseStandardURL(url, static_cast<int>(strlen(url)), &parsed); + int port = ParsePort(url, parsed.port); + + EXPECT_TRUE(ComponentMatches(url, cases[i].scheme, parsed.scheme)); + EXPECT_TRUE(ComponentMatches(url, cases[i].username, parsed.username)); + EXPECT_TRUE(ComponentMatches(url, cases[i].password, parsed.password)); + EXPECT_TRUE(ComponentMatches(url, cases[i].host, parsed.host)); + EXPECT_EQ(cases[i].port, port); + EXPECT_TRUE(ComponentMatches(url, cases[i].path, parsed.path)); + EXPECT_TRUE(ComponentMatches(url, cases[i].query, parsed.query)); + EXPECT_TRUE(ComponentMatches(url, cases[i].ref, parsed.ref)); + } +} + +// PathURL -------------------------------------------------------------------- + +// Various incarnations of path URLs. +static PathURLParseCase path_cases[] = { +{"", NULL, NULL}, +{":", "", NULL}, +{":/", "", "/"}, +{"/", NULL, "/"}, +{" This is \\interesting// \t", NULL, "This is \\interesting// \t"}, +{"about:", "about", NULL}, +{"about:blank", "about", "blank"}, +{" about: blank ", "about", " blank "}, +{"javascript :alert(\"He:/l\\l#o?foo\"); ", "javascript ", "alert(\"He:/l\\l#o?foo\"); "}, +}; + +TEST(URLParser, PathURL) { + // Declared outside for loop to try to catch cases in init() where we forget + // to reset something that is reset by the construtor. + Parsed parsed; + for (size_t i = 0; i < arraysize(path_cases); i++) { + const char* url = path_cases[i].input; + ParsePathURL(url, static_cast<int>(strlen(url)), false, &parsed); + + EXPECT_TRUE(ComponentMatches(url, path_cases[i].scheme, parsed.scheme)) + << i; + EXPECT_TRUE(ComponentMatches(url, path_cases[i].path, parsed.GetContent())) + << i; + + // The remaining components are never used for path urls. + ExpectInvalidComponent(parsed.username); + ExpectInvalidComponent(parsed.password); + ExpectInvalidComponent(parsed.host); + ExpectInvalidComponent(parsed.port); + } +} + +// Various incarnations of file URLs. +static URLParseCase file_cases[] = { +#ifdef WIN32 +{"file:server", "file", NULL, NULL, "server", -1, NULL, NULL, NULL}, +{" file: server \t", "file", NULL, NULL, " server",-1, NULL, NULL, NULL}, +{"FiLe:c|", "FiLe", NULL, NULL, NULL, -1, "c|", NULL, NULL}, +{"FILE:/\\\\/server/file", "FILE", NULL, NULL, "server", -1, "/file", NULL, NULL}, +{"file://server/", "file", NULL, NULL, "server", -1, "/", NULL, NULL}, +{"file://localhost/c:/", "file", NULL, NULL, NULL, -1, "/c:/", NULL, NULL}, +{"file://127.0.0.1/c|\\", "file", NULL, NULL, NULL, -1, "/c|\\", NULL, NULL}, +{"file:/", "file", NULL, NULL, NULL, -1, NULL, NULL, NULL}, +{"file:", "file", NULL, NULL, NULL, -1, NULL, NULL, NULL}, + // If there is a Windows drive letter, treat any number of slashes as the + // path part. +{"file:c:\\fo\\b", "file", NULL, NULL, NULL, -1, "c:\\fo\\b", NULL, NULL}, +{"file:/c:\\foo/bar", "file", NULL, NULL, NULL, -1, "/c:\\foo/bar",NULL, NULL}, +{"file://c:/f\\b", "file", NULL, NULL, NULL, -1, "/c:/f\\b", NULL, NULL}, +{"file:///C:/foo", "file", NULL, NULL, NULL, -1, "/C:/foo", NULL, NULL}, +{"file://///\\/\\/c:\\f\\b", "file", NULL, NULL, NULL, -1, "/c:\\f\\b", NULL, NULL}, + // If there is not a drive letter, we should treat is as UNC EXCEPT for + // three slashes, which we treat as a Unix style path. +{"file:server/file", "file", NULL, NULL, "server", -1, "/file", NULL, NULL}, +{"file:/server/file", "file", NULL, NULL, "server", -1, "/file", NULL, NULL}, +{"file://server/file", "file", NULL, NULL, "server", -1, "/file", NULL, NULL}, +{"file:///server/file", "file", NULL, NULL, NULL, -1, "/server/file",NULL, NULL}, +{"file://\\server/file", "file", NULL, NULL, NULL, -1, "\\server/file",NULL, NULL}, +{"file:////server/file", "file", NULL, NULL, "server", -1, "/file", NULL, NULL}, + // Queries and refs are valid for file URLs as well. +{"file:///C:/foo.html?#", "file", NULL, NULL, NULL, -1, "/C:/foo.html", "", ""}, +{"file:///C:/foo.html?query=yes#ref", "file", NULL, NULL, NULL, -1, "/C:/foo.html", "query=yes", "ref"}, +#else // WIN32 + // No slashes. + {"file:", "file", NULL, NULL, NULL, -1, NULL, NULL, NULL}, + {"file:path", "file", NULL, NULL, NULL, -1, "path", NULL, NULL}, + {"file:path/", "file", NULL, NULL, NULL, -1, "path/", NULL, NULL}, + {"file:path/f.txt", "file", NULL, NULL, NULL, -1, "path/f.txt", NULL, NULL}, + // One slash. + {"file:/", "file", NULL, NULL, NULL, -1, "/", NULL, NULL}, + {"file:/path", "file", NULL, NULL, NULL, -1, "/path", NULL, NULL}, + {"file:/path/", "file", NULL, NULL, NULL, -1, "/path/", NULL, NULL}, + {"file:/path/f.txt", "file", NULL, NULL, NULL, -1, "/path/f.txt", NULL, NULL}, + // Two slashes. + {"file://", "file", NULL, NULL, NULL, -1, NULL, NULL, NULL}, + {"file://server", "file", NULL, NULL, "server", -1, NULL, NULL, NULL}, + {"file://server/", "file", NULL, NULL, "server", -1, "/", NULL, NULL}, + {"file://server/f.txt", "file", NULL, NULL, "server", -1, "/f.txt", NULL, NULL}, + // Three slashes. + {"file:///", "file", NULL, NULL, NULL, -1, "/", NULL, NULL}, + {"file:///path", "file", NULL, NULL, NULL, -1, "/path", NULL, NULL}, + {"file:///path/", "file", NULL, NULL, NULL, -1, "/path/", NULL, NULL}, + {"file:///path/f.txt", "file", NULL, NULL, NULL, -1, "/path/f.txt", NULL, NULL}, + // More than three slashes. + {"file:////", "file", NULL, NULL, NULL, -1, "/", NULL, NULL}, + {"file:////path", "file", NULL, NULL, NULL, -1, "/path", NULL, NULL}, + {"file:////path/", "file", NULL, NULL, NULL, -1, "/path/", NULL, NULL}, + {"file:////path/f.txt", "file", NULL, NULL, NULL, -1, "/path/f.txt", NULL, NULL}, + // Schemeless URLs + {"path/f.txt", NULL, NULL, NULL, NULL, -1, "path/f.txt", NULL, NULL}, + {"path:80/f.txt", "path", NULL, NULL, NULL, -1, "80/f.txt", NULL, NULL}, + {"path/f.txt:80", "path/f.txt",NULL, NULL, NULL, -1, "80", NULL, NULL}, // Wrong. + {"/path/f.txt", NULL, NULL, NULL, NULL, -1, "/path/f.txt", NULL, NULL}, + {"/path:80/f.txt", NULL, NULL, NULL, NULL, -1, "/path:80/f.txt",NULL, NULL}, + {"/path/f.txt:80", NULL, NULL, NULL, NULL, -1, "/path/f.txt:80",NULL, NULL}, + {"//server/f.txt", NULL, NULL, NULL, "server", -1, "/f.txt", NULL, NULL}, + {"//server:80/f.txt", NULL, NULL, NULL, "server:80",-1, "/f.txt", NULL, NULL}, + {"//server/f.txt:80", NULL, NULL, NULL, "server", -1, "/f.txt:80", NULL, NULL}, + {"///path/f.txt", NULL, NULL, NULL, NULL, -1, "/path/f.txt", NULL, NULL}, + {"///path:80/f.txt", NULL, NULL, NULL, NULL, -1, "/path:80/f.txt",NULL, NULL}, + {"///path/f.txt:80", NULL, NULL, NULL, NULL, -1, "/path/f.txt:80",NULL, NULL}, + {"////path/f.txt", NULL, NULL, NULL, NULL, -1, "/path/f.txt", NULL, NULL}, + {"////path:80/f.txt", NULL, NULL, NULL, NULL, -1, "/path:80/f.txt",NULL, NULL}, + {"////path/f.txt:80", NULL, NULL, NULL, NULL, -1, "/path/f.txt:80",NULL, NULL}, + // Queries and refs are valid for file URLs as well. + {"file:///foo.html?#", "file", NULL, NULL, NULL, -1, "/foo.html", "", ""}, + {"file:///foo.html?q=y#ref", "file", NULL, NULL, NULL, -1, "/foo.html", "q=y", "ref"}, +#endif // WIN32 +}; + +TEST(URLParser, ParseFileURL) { + // Declared outside for loop to try to catch cases in init() where we forget + // to reset something that is reset by the construtor. + Parsed parsed; + for (size_t i = 0; i < arraysize(file_cases); i++) { + const char* url = file_cases[i].input; + ParseFileURL(url, static_cast<int>(strlen(url)), &parsed); + int port = ParsePort(url, parsed.port); + + EXPECT_TRUE(ComponentMatches(url, file_cases[i].scheme, parsed.scheme)) + << " for case #" << i << " [" << url << "] " + << parsed.scheme.begin << ", " << parsed.scheme.len; + + EXPECT_TRUE(ComponentMatches(url, file_cases[i].username, parsed.username)) + << " for case #" << i << " [" << url << "] " + << parsed.username.begin << ", " << parsed.username.len; + + EXPECT_TRUE(ComponentMatches(url, file_cases[i].password, parsed.password)) + << " for case #" << i << " [" << url << "] " + << parsed.password.begin << ", " << parsed.password.len; + + EXPECT_TRUE(ComponentMatches(url, file_cases[i].host, parsed.host)) + << " for case #" << i << " [" << url << "] " + << parsed.host.begin << ", " << parsed.host.len; + + EXPECT_EQ(file_cases[i].port, port) + << " for case #" << i << " [ " << url << "] " << port; + + EXPECT_TRUE(ComponentMatches(url, file_cases[i].path, parsed.path)) + << " for case #" << i << " [" << url << "] " + << parsed.path.begin << ", " << parsed.path.len; + + EXPECT_TRUE(ComponentMatches(url, file_cases[i].query, parsed.query)) + << " for case #" << i << " [" << url << "] " + << parsed.query.begin << ", " << parsed.query.len; + + EXPECT_TRUE(ComponentMatches(url, file_cases[i].ref, parsed.ref)) + << " for case #" << i << " [ "<< url << "] " + << parsed.query.begin << ", " << parsed.scheme.len; + } +} + + +TEST(URLParser, ExtractFileName) { + struct FileCase { + const char* input; + const char* expected; + } file_cases[] = { + {"http://www.google.com", NULL}, + {"http://www.google.com/", ""}, + {"http://www.google.com/search", "search"}, + {"http://www.google.com/search/", ""}, + {"http://www.google.com/foo/bar.html?baz=22", "bar.html"}, + {"http://www.google.com/foo/bar.html#ref", "bar.html"}, + {"http://www.google.com/search/;param", ""}, + {"http://www.google.com/foo/bar.html;param#ref", "bar.html"}, + {"http://www.google.com/foo/bar.html;foo;param#ref", "bar.html;foo"}, + {"http://www.google.com/foo/bar.html?query#ref", "bar.html"}, + }; + + for (size_t i = 0; i < ARRAYSIZE(file_cases); i++) { + const char* url = file_cases[i].input; + int len = static_cast<int>(strlen(url)); + + Parsed parsed; + ParseStandardURL(url, len, &parsed); + + Component file_name; + ExtractFileName(url, parsed.path, &file_name); + + EXPECT_TRUE(ComponentMatches(url, file_cases[i].expected, file_name)); + } +} + +// Returns true if the parameter with index |parameter| in the given URL's +// query string. The expected key can be NULL to indicate no such key index +// should exist. The parameter number is 1-based. +static bool NthParameterIs(const char* url, + int parameter, + const char* expected_key, + const char* expected_value) { + Parsed parsed; + ParseStandardURL(url, static_cast<int>(strlen(url)), &parsed); + + Component query = parsed.query; + + for (int i = 1; i <= parameter; i++) { + Component key, value; + if (!ExtractQueryKeyValue(url, &query, &key, &value)) { + if (parameter >= i && !expected_key) + return true; // Expected nonexistant key, got one. + return false; // Not enough keys. + } + + if (i == parameter) { + if (!expected_key) + return false; + + if (strncmp(&url[key.begin], expected_key, key.len) != 0) + return false; + if (strncmp(&url[value.begin], expected_value, value.len) != 0) + return false; + return true; + } + } + return expected_key == NULL; // We didn't find that many parameters. +} + +TEST(URLParser, ExtractQueryKeyValue) { + EXPECT_TRUE(NthParameterIs("http://www.google.com", 1, NULL, NULL)); + + // Basic case. + char a[] = "http://www.google.com?arg1=1&arg2=2&bar"; + EXPECT_TRUE(NthParameterIs(a, 1, "arg1", "1")); + EXPECT_TRUE(NthParameterIs(a, 2, "arg2", "2")); + EXPECT_TRUE(NthParameterIs(a, 3, "bar", "")); + EXPECT_TRUE(NthParameterIs(a, 4, NULL, NULL)); + + // Empty param at the end. + char b[] = "http://www.google.com?foo=bar&"; + EXPECT_TRUE(NthParameterIs(b, 1, "foo", "bar")); + EXPECT_TRUE(NthParameterIs(b, 2, NULL, NULL)); + + // Empty param at the beginning. + char c[] = "http://www.google.com?&foo=bar"; + EXPECT_TRUE(NthParameterIs(c, 1, "", "")); + EXPECT_TRUE(NthParameterIs(c, 2, "foo", "bar")); + EXPECT_TRUE(NthParameterIs(c, 3, NULL, NULL)); + + // Empty key with value. + char d[] = "http://www.google.com?=foo"; + EXPECT_TRUE(NthParameterIs(d, 1, "", "foo")); + EXPECT_TRUE(NthParameterIs(d, 2, NULL, NULL)); + + // Empty value with key. + char e[] = "http://www.google.com?foo="; + EXPECT_TRUE(NthParameterIs(e, 1, "foo", "")); + EXPECT_TRUE(NthParameterIs(e, 2, NULL, NULL)); + + // Empty key and values. + char f[] = "http://www.google.com?&&==&="; + EXPECT_TRUE(NthParameterIs(f, 1, "", "")); + EXPECT_TRUE(NthParameterIs(f, 2, "", "")); + EXPECT_TRUE(NthParameterIs(f, 3, "", "=")); + EXPECT_TRUE(NthParameterIs(f, 4, "", "")); + EXPECT_TRUE(NthParameterIs(f, 5, NULL, NULL)); +} + +// MailtoURL -------------------------------------------------------------------- + +static MailtoURLParseCase mailto_cases[] = { +//|input |scheme |path |query +{"mailto:foo@gmail.com", "mailto", "foo@gmail.com", NULL}, +{" mailto: to \t", "mailto", " to", NULL}, +{"mailto:addr1%2C%20addr2 ", "mailto", "addr1%2C%20addr2", NULL}, +{"Mailto:addr1, addr2 ", "Mailto", "addr1, addr2", NULL}, +{"mailto:addr1:addr2 ", "mailto", "addr1:addr2", NULL}, +{"mailto:?to=addr1,addr2", "mailto", NULL, "to=addr1,addr2"}, +{"mailto:?to=addr1%2C%20addr2", "mailto", NULL, "to=addr1%2C%20addr2"}, +{"mailto:addr1?to=addr2", "mailto", "addr1", "to=addr2"}, +{"mailto:?body=#foobar#", "mailto", NULL, "body=#foobar#",}, +{"mailto:#?body=#foobar#", "mailto", "#", "body=#foobar#"}, +}; + +TEST(URLParser, MailtoUrl) { + // Declared outside for loop to try to catch cases in init() where we forget + // to reset something that is reset by the construtor. + Parsed parsed; + for (size_t i = 0; i < arraysize(mailto_cases); ++i) { + const char* url = mailto_cases[i].input; + ParseMailtoURL(url, static_cast<int>(strlen(url)), &parsed); + int port = ParsePort(url, parsed.port); + + EXPECT_TRUE(ComponentMatches(url, mailto_cases[i].scheme, parsed.scheme)); + EXPECT_TRUE(ComponentMatches(url, mailto_cases[i].path, parsed.path)); + EXPECT_TRUE(ComponentMatches(url, mailto_cases[i].query, parsed.query)); + EXPECT_EQ(PORT_UNSPECIFIED, port); + + // The remaining components are never used for mailto urls. + ExpectInvalidComponent(parsed.username); + ExpectInvalidComponent(parsed.password); + ExpectInvalidComponent(parsed.port); + ExpectInvalidComponent(parsed.ref); + } +} + +// Various incarnations of filesystem URLs. +static FileSystemURLParseCase filesystem_cases[] = { + // Regular URL with all the parts +{"filesystem:http://user:pass@foo:21/temporary/bar;par?b#c", "http", "user", "pass", "foo", 21, "/temporary", "/bar;par", "b", "c"}, +{"filesystem:https://foo/persistent/bar;par/", "https", NULL, NULL, "foo", -1, "/persistent", "/bar;par/", NULL, NULL}, +{"filesystem:file:///persistent/bar;par/", "file", NULL, NULL, NULL, -1, "/persistent", "/bar;par/", NULL, NULL}, +{"filesystem:file:///persistent/bar;par/?query#ref", "file", NULL, NULL, NULL, -1, "/persistent", "/bar;par/", "query", "ref"}, +{"filesystem:file:///persistent", "file", NULL, NULL, NULL, -1, "/persistent", "", NULL, NULL}, +}; + +TEST(URLParser, FileSystemURL) { + // Declared outside for loop to try to catch cases in init() where we forget + // to reset something that is reset by the construtor. + Parsed parsed; + for (size_t i = 0; i < arraysize(filesystem_cases); i++) { + const FileSystemURLParseCase* parsecase = &filesystem_cases[i]; + const char* url = parsecase->input; + ParseFileSystemURL(url, static_cast<int>(strlen(url)), &parsed); + + EXPECT_TRUE(ComponentMatches(url, "filesystem", parsed.scheme)); + EXPECT_EQ(!parsecase->inner_scheme, !parsed.inner_parsed()); + // Only check the inner_parsed if there is one. + if (parsed.inner_parsed()) { + EXPECT_TRUE(ComponentMatches(url, parsecase->inner_scheme, + parsed.inner_parsed()->scheme)); + EXPECT_TRUE(ComponentMatches(url, parsecase->inner_username, + parsed.inner_parsed()->username)); + EXPECT_TRUE(ComponentMatches(url, parsecase->inner_password, + parsed.inner_parsed()->password)); + EXPECT_TRUE(ComponentMatches(url, parsecase->inner_host, + parsed.inner_parsed()->host)); + int port = ParsePort(url, parsed.inner_parsed()->port); + EXPECT_EQ(parsecase->inner_port, port); + + // The remaining components are never used for filesystem urls. + ExpectInvalidComponent(parsed.inner_parsed()->query); + ExpectInvalidComponent(parsed.inner_parsed()->ref); + } + + EXPECT_TRUE(ComponentMatches(url, parsecase->path, parsed.path)); + EXPECT_TRUE(ComponentMatches(url, parsecase->query, parsed.query)); + EXPECT_TRUE(ComponentMatches(url, parsecase->ref, parsed.ref)); + + // The remaining components are never used for filesystem urls. + ExpectInvalidComponent(parsed.username); + ExpectInvalidComponent(parsed.password); + ExpectInvalidComponent(parsed.host); + ExpectInvalidComponent(parsed.port); + } +} + +} // namespace +} // namespace url
diff --git a/url_srcs.gypi b/url_srcs.gypi new file mode 100644 index 0000000..61db15d --- /dev/null +++ b/url_srcs.gypi
@@ -0,0 +1,44 @@ +# Copyright 2014 The Chromium Authors. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +{ + 'variables': { + 'gurl_sources': [ + 'android/url_jni_registrar.cc', + 'android/url_jni_registrar.h', + 'gurl.cc', + 'gurl.h', + 'origin.cc', + 'origin.h', + 'third_party/mozilla/url_parse.cc', + 'third_party/mozilla/url_parse.h', + 'url_canon.h', + 'url_canon_etc.cc', + 'url_canon_filesystemurl.cc', + 'url_canon_fileurl.cc', + 'url_canon_host.cc', + 'url_canon_icu.cc', + 'url_canon_icu.h', + 'url_canon_internal.cc', + 'url_canon_internal.h', + 'url_canon_internal_file.h', + 'url_canon_ip.cc', + 'url_canon_ip.h', + 'url_canon_mailtourl.cc', + 'url_canon_path.cc', + 'url_canon_pathurl.cc', + 'url_canon_query.cc', + 'url_canon_relative.cc', + 'url_canon_stdstring.cc', + 'url_canon_stdurl.cc', + 'url_constants.cc', + 'url_constants.h', + 'url_file.h', + 'url_parse_file.cc', + 'url_parse_internal.h', + 'url_util.cc', + 'url_util.h', + ], + }, +}
diff --git a/url_test_utils.h b/url_test_utils.h new file mode 100644 index 0000000..6400bac --- /dev/null +++ b/url_test_utils.h
@@ -0,0 +1,56 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_TEST_UTILS_H_ +#define URL_URL_TEST_UTILS_H_ + +// Convenience functions for string conversions. +// These are mostly intended for use in unit tests. + +#include <string> + +#include "base/strings/string16.h" +#include "testing/gtest/include/gtest/gtest.h" +#include "url/url_canon_internal.h" + +namespace url { + +namespace test_utils { + +// Converts a UTF-16 string from native wchar_t format to char16, by +// truncating the high 32 bits. This is not meant to handle true UTF-32 +// encoded strings. +inline base::string16 WStringToUTF16(const wchar_t* src) { + base::string16 str; + int length = static_cast<int>(wcslen(src)); + for (int i = 0; i < length; ++i) { + str.push_back(static_cast<base::char16>(src[i])); + } + return str; +} + +// Converts a string from UTF-8 to UTF-16 +inline base::string16 ConvertUTF8ToUTF16(const std::string& src) { + int length = static_cast<int>(src.length()); + EXPECT_LT(length, 1024); + RawCanonOutputW<1024> output; + EXPECT_TRUE(ConvertUTF8ToUTF16(src.data(), length, &output)); + return base::string16(output.data(), output.length()); +} + +// Converts a string from UTF-16 to UTF-8 +inline std::string ConvertUTF16ToUTF8(const base::string16& src) { + std::string str; + StdStringCanonOutput output(&str); + EXPECT_TRUE(ConvertUTF16ToUTF8(src.data(), static_cast<int>(src.length()), + &output)); + output.Complete(); + return str; +} + +} // namespace test_utils + +} // namespace url + +#endif // URL_URL_TEST_UTILS_H_
diff --git a/url_util.cc b/url_util.cc new file mode 100644 index 0000000..8ab889f --- /dev/null +++ b/url_util.cc
@@ -0,0 +1,585 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "url/url_util.h" + +#include <string.h> +#include <vector> + +#include "base/debug/leak_annotations.h" +#include "base/logging.h" +#include "url/url_canon_internal.h" +#include "url/url_file.h" +#include "url/url_util_internal.h" + +namespace url { + +namespace { + +// ASCII-specific tolower. The standard library's tolower is locale sensitive, +// so we don't want to use it here. +template<class Char> +inline Char ToLowerASCII(Char c) { + return (c >= 'A' && c <= 'Z') ? (c + ('a' - 'A')) : c; +} + +// Backend for LowerCaseEqualsASCII. +template<typename Iter> +inline bool DoLowerCaseEqualsASCII(Iter a_begin, Iter a_end, const char* b) { + for (Iter it = a_begin; it != a_end; ++it, ++b) { + if (!*b || ToLowerASCII(*it) != *b) + return false; + } + return *b == 0; +} + +const int kNumStandardURLSchemes = 8; +const char* kStandardURLSchemes[kNumStandardURLSchemes] = { + kHttpScheme, + kHttpsScheme, + kFileScheme, // Yes, file urls can have a hostname! + kFtpScheme, + kGopherScheme, + kWsScheme, // WebSocket. + kWssScheme, // WebSocket secure. + kFileSystemScheme, +}; + +// List of the currently installed standard schemes. This list is lazily +// initialized by InitStandardSchemes and is leaked on shutdown to prevent +// any destructors from being called that will slow us down or cause problems. +std::vector<const char*>* standard_schemes = NULL; + +// See the LockStandardSchemes declaration in the header. +bool standard_schemes_locked = false; + +// Ensures that the standard_schemes list is initialized, does nothing if it +// already has values. +void InitStandardSchemes() { + if (standard_schemes) + return; + standard_schemes = new std::vector<const char*>; + for (int i = 0; i < kNumStandardURLSchemes; i++) + standard_schemes->push_back(kStandardURLSchemes[i]); +} + +// Given a string and a range inside the string, compares it to the given +// lower-case |compare_to| buffer. +template<typename CHAR> +inline bool DoCompareSchemeComponent(const CHAR* spec, + const Component& component, + const char* compare_to) { + if (!component.is_nonempty()) + return compare_to[0] == 0; // When component is empty, match empty scheme. + return LowerCaseEqualsASCII(&spec[component.begin], + &spec[component.end()], + compare_to); +} + +// Returns true if the given scheme identified by |scheme| within |spec| is one +// of the registered "standard" schemes. +template<typename CHAR> +bool DoIsStandard(const CHAR* spec, const Component& scheme) { + if (!scheme.is_nonempty()) + return false; // Empty or invalid schemes are non-standard. + + InitStandardSchemes(); + for (size_t i = 0; i < standard_schemes->size(); i++) { + if (LowerCaseEqualsASCII(&spec[scheme.begin], &spec[scheme.end()], + standard_schemes->at(i))) + return true; + } + return false; +} + +template<typename CHAR> +bool DoFindAndCompareScheme(const CHAR* str, + int str_len, + const char* compare, + Component* found_scheme) { + // Before extracting scheme, canonicalize the URL to remove any whitespace. + // This matches the canonicalization done in DoCanonicalize function. + RawCanonOutputT<CHAR> whitespace_buffer; + int spec_len; + const CHAR* spec = RemoveURLWhitespace(str, str_len, + &whitespace_buffer, &spec_len); + + Component our_scheme; + if (!ExtractScheme(spec, spec_len, &our_scheme)) { + // No scheme. + if (found_scheme) + *found_scheme = Component(); + return false; + } + if (found_scheme) + *found_scheme = our_scheme; + return DoCompareSchemeComponent(spec, our_scheme, compare); +} + +template<typename CHAR> +bool DoCanonicalize(const CHAR* in_spec, + int in_spec_len, + bool trim_path_end, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* output_parsed) { + // Remove any whitespace from the middle of the relative URL, possibly + // copying to the new buffer. + RawCanonOutputT<CHAR> whitespace_buffer; + int spec_len; + const CHAR* spec = RemoveURLWhitespace(in_spec, in_spec_len, + &whitespace_buffer, &spec_len); + + Parsed parsed_input; +#ifdef WIN32 + // For Windows, we allow things that look like absolute Windows paths to be + // fixed up magically to file URLs. This is done for IE compatability. For + // example, this will change "c:/foo" into a file URL rather than treating + // it as a URL with the protocol "c". It also works for UNC ("\\foo\bar.txt"). + // There is similar logic in url_canon_relative.cc for + // + // For Max & Unix, we don't do this (the equivalent would be "/foo/bar" which + // has no meaning as an absolute path name. This is because browsers on Mac + // & Unix don't generally do this, so there is no compatibility reason for + // doing so. + if (DoesBeginUNCPath(spec, 0, spec_len, false) || + DoesBeginWindowsDriveSpec(spec, 0, spec_len)) { + ParseFileURL(spec, spec_len, &parsed_input); + return CanonicalizeFileURL(spec, spec_len, parsed_input, charset_converter, + output, output_parsed); + } +#endif + + Component scheme; + if (!ExtractScheme(spec, spec_len, &scheme)) + return false; + + // This is the parsed version of the input URL, we have to canonicalize it + // before storing it in our object. + bool success; + if (DoCompareSchemeComponent(spec, scheme, url::kFileScheme)) { + // File URLs are special. + ParseFileURL(spec, spec_len, &parsed_input); + success = CanonicalizeFileURL(spec, spec_len, parsed_input, + charset_converter, output, output_parsed); + } else if (DoCompareSchemeComponent(spec, scheme, url::kFileSystemScheme)) { + // Filesystem URLs are special. + ParseFileSystemURL(spec, spec_len, &parsed_input); + success = CanonicalizeFileSystemURL(spec, spec_len, parsed_input, + charset_converter, output, + output_parsed); + + } else if (DoIsStandard(spec, scheme)) { + // All "normal" URLs. + ParseStandardURL(spec, spec_len, &parsed_input); + success = CanonicalizeStandardURL(spec, spec_len, parsed_input, + charset_converter, output, output_parsed); + + } else if (DoCompareSchemeComponent(spec, scheme, url::kMailToScheme)) { + // Mailto are treated like a standard url with only a scheme, path, query + ParseMailtoURL(spec, spec_len, &parsed_input); + success = CanonicalizeMailtoURL(spec, spec_len, parsed_input, output, + output_parsed); + + } else { + // "Weird" URLs like data: and javascript: + ParsePathURL(spec, spec_len, trim_path_end, &parsed_input); + success = CanonicalizePathURL(spec, spec_len, parsed_input, output, + output_parsed); + } + return success; +} + +template<typename CHAR> +bool DoResolveRelative(const char* base_spec, + int base_spec_len, + const Parsed& base_parsed, + const CHAR* in_relative, + int in_relative_length, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* output_parsed) { + // Remove any whitespace from the middle of the relative URL, possibly + // copying to the new buffer. + RawCanonOutputT<CHAR> whitespace_buffer; + int relative_length; + const CHAR* relative = RemoveURLWhitespace(in_relative, in_relative_length, + &whitespace_buffer, + &relative_length); + bool base_is_authority_based = false; + bool base_is_hierarchical = false; + if (base_spec && + base_parsed.scheme.is_nonempty()) { + int after_scheme = base_parsed.scheme.end() + 1; // Skip past the colon. + int num_slashes = CountConsecutiveSlashes(base_spec, after_scheme, + base_spec_len); + base_is_authority_based = num_slashes > 1; + base_is_hierarchical = num_slashes > 0; + } + + bool standard_base_scheme = + base_parsed.scheme.is_nonempty() && + DoIsStandard(base_spec, base_parsed.scheme); + + bool is_relative; + Component relative_component; + if (!IsRelativeURL(base_spec, base_parsed, relative, relative_length, + (base_is_hierarchical || standard_base_scheme), + &is_relative, &relative_component)) { + // Error resolving. + return false; + } + + // Pretend for a moment that |base_spec| is a standard URL. Normally + // non-standard URLs are treated as PathURLs, but if the base has an + // authority we would like to preserve it. + if (is_relative && base_is_authority_based && !standard_base_scheme) { + Parsed base_parsed_authority; + ParseStandardURL(base_spec, base_spec_len, &base_parsed_authority); + if (base_parsed_authority.host.is_nonempty()) { + bool did_resolve_succeed = + ResolveRelativeURL(base_spec, base_parsed_authority, false, relative, + relative_component, charset_converter, output, + output_parsed); + // The output_parsed is incorrect at this point (because it was built + // based on base_parsed_authority instead of base_parsed) and needs to be + // re-created. + ParsePathURL(output->data(), output->length(), true, + output_parsed); + return did_resolve_succeed; + } + } else if (is_relative) { + // Relative, resolve and canonicalize. + bool file_base_scheme = base_parsed.scheme.is_nonempty() && + DoCompareSchemeComponent(base_spec, base_parsed.scheme, kFileScheme); + return ResolveRelativeURL(base_spec, base_parsed, file_base_scheme, relative, + relative_component, charset_converter, output, + output_parsed); + } + + // Not relative, canonicalize the input. + return DoCanonicalize(relative, relative_length, true, charset_converter, + output, output_parsed); +} + +template<typename CHAR> +bool DoReplaceComponents(const char* spec, + int spec_len, + const Parsed& parsed, + const Replacements<CHAR>& replacements, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* out_parsed) { + // If the scheme is overridden, just do a simple string substitution and + // reparse the whole thing. There are lots of edge cases that we really don't + // want to deal with. Like what happens if I replace "http://e:8080/foo" + // with a file. Does it become "file:///E:/8080/foo" where the port number + // becomes part of the path? Parsing that string as a file URL says "yes" + // but almost no sane rule for dealing with the components individually would + // come up with that. + // + // Why allow these crazy cases at all? Programatically, there is almost no + // case for replacing the scheme. The most common case for hitting this is + // in JS when building up a URL using the location object. In this case, the + // JS code expects the string substitution behavior: + // http://www.w3.org/TR/2008/WD-html5-20080610/structured.html#common3 + if (replacements.IsSchemeOverridden()) { + // Canonicalize the new scheme so it is 8-bit and can be concatenated with + // the existing spec. + RawCanonOutput<128> scheme_replaced; + Component scheme_replaced_parsed; + CanonicalizeScheme(replacements.sources().scheme, + replacements.components().scheme, + &scheme_replaced, &scheme_replaced_parsed); + + // We can assume that the input is canonicalized, which means it always has + // a colon after the scheme (or where the scheme would be). + int spec_after_colon = parsed.scheme.is_valid() ? parsed.scheme.end() + 1 + : 1; + if (spec_len - spec_after_colon > 0) { + scheme_replaced.Append(&spec[spec_after_colon], + spec_len - spec_after_colon); + } + + // We now need to completely re-parse the resulting string since its meaning + // may have changed with the different scheme. + RawCanonOutput<128> recanonicalized; + Parsed recanonicalized_parsed; + DoCanonicalize(scheme_replaced.data(), scheme_replaced.length(), true, + charset_converter, + &recanonicalized, &recanonicalized_parsed); + + // Recurse using the version with the scheme already replaced. This will now + // use the replacement rules for the new scheme. + // + // Warning: this code assumes that ReplaceComponents will re-check all + // components for validity. This is because we can't fail if DoCanonicalize + // failed above since theoretically the thing making it fail could be + // getting replaced here. If ReplaceComponents didn't re-check everything, + // we wouldn't know if something *not* getting replaced is a problem. + // If the scheme-specific replacers are made more intelligent so they don't + // re-check everything, we should instead recanonicalize the whole thing + // after this call to check validity (this assumes replacing the scheme is + // much much less common than other types of replacements, like clearing the + // ref). + Replacements<CHAR> replacements_no_scheme = replacements; + replacements_no_scheme.SetScheme(NULL, Component()); + return DoReplaceComponents(recanonicalized.data(), recanonicalized.length(), + recanonicalized_parsed, replacements_no_scheme, + charset_converter, output, out_parsed); + } + + // If we get here, then we know the scheme doesn't need to be replaced, so can + // just key off the scheme in the spec to know how to do the replacements. + if (DoCompareSchemeComponent(spec, parsed.scheme, url::kFileScheme)) { + return ReplaceFileURL(spec, parsed, replacements, charset_converter, output, + out_parsed); + } + if (DoCompareSchemeComponent(spec, parsed.scheme, url::kFileSystemScheme)) { + return ReplaceFileSystemURL(spec, parsed, replacements, charset_converter, + output, out_parsed); + } + if (DoIsStandard(spec, parsed.scheme)) { + return ReplaceStandardURL(spec, parsed, replacements, charset_converter, + output, out_parsed); + } + if (DoCompareSchemeComponent(spec, parsed.scheme, url::kMailToScheme)) { + return ReplaceMailtoURL(spec, parsed, replacements, output, out_parsed); + } + + // Default is a path URL. + return ReplacePathURL(spec, parsed, replacements, output, out_parsed); +} + +} // namespace + +void Initialize() { + InitStandardSchemes(); +} + +void Shutdown() { + if (standard_schemes) { + delete standard_schemes; + standard_schemes = NULL; + } +} + +void AddStandardScheme(const char* new_scheme) { + // If this assert triggers, it means you've called AddStandardScheme after + // LockStandardSchemes have been called (see the header file for + // LockStandardSchemes for more). + // + // This normally means you're trying to set up a new standard scheme too late + // in your application's init process. Locate where your app does this + // initialization and calls LockStandardScheme, and add your new standard + // scheme there. + DCHECK(!standard_schemes_locked) << + "Trying to add a standard scheme after the list has been locked."; + + size_t scheme_len = strlen(new_scheme); + if (scheme_len == 0) + return; + + // Dulicate the scheme into a new buffer and add it to the list of standard + // schemes. This pointer will be leaked on shutdown. + char* dup_scheme = new char[scheme_len + 1]; + ANNOTATE_LEAKING_OBJECT_PTR(dup_scheme); + memcpy(dup_scheme, new_scheme, scheme_len + 1); + + InitStandardSchemes(); + standard_schemes->push_back(dup_scheme); +} + +void LockStandardSchemes() { + standard_schemes_locked = true; +} + +bool IsStandard(const char* spec, const Component& scheme) { + return DoIsStandard(spec, scheme); +} + +bool IsStandard(const base::char16* spec, const Component& scheme) { + return DoIsStandard(spec, scheme); +} + +bool FindAndCompareScheme(const char* str, + int str_len, + const char* compare, + Component* found_scheme) { + return DoFindAndCompareScheme(str, str_len, compare, found_scheme); +} + +bool FindAndCompareScheme(const base::char16* str, + int str_len, + const char* compare, + Component* found_scheme) { + return DoFindAndCompareScheme(str, str_len, compare, found_scheme); +} + +bool Canonicalize(const char* spec, + int spec_len, + bool trim_path_end, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* output_parsed) { + return DoCanonicalize(spec, spec_len, trim_path_end, charset_converter, + output, output_parsed); +} + +bool Canonicalize(const base::char16* spec, + int spec_len, + bool trim_path_end, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* output_parsed) { + return DoCanonicalize(spec, spec_len, trim_path_end, charset_converter, + output, output_parsed); +} + +bool ResolveRelative(const char* base_spec, + int base_spec_len, + const Parsed& base_parsed, + const char* relative, + int relative_length, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* output_parsed) { + return DoResolveRelative(base_spec, base_spec_len, base_parsed, + relative, relative_length, + charset_converter, output, output_parsed); +} + +bool ResolveRelative(const char* base_spec, + int base_spec_len, + const Parsed& base_parsed, + const base::char16* relative, + int relative_length, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* output_parsed) { + return DoResolveRelative(base_spec, base_spec_len, base_parsed, + relative, relative_length, + charset_converter, output, output_parsed); +} + +bool ReplaceComponents(const char* spec, + int spec_len, + const Parsed& parsed, + const Replacements<char>& replacements, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* out_parsed) { + return DoReplaceComponents(spec, spec_len, parsed, replacements, + charset_converter, output, out_parsed); +} + +bool ReplaceComponents(const char* spec, + int spec_len, + const Parsed& parsed, + const Replacements<base::char16>& replacements, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* out_parsed) { + return DoReplaceComponents(spec, spec_len, parsed, replacements, + charset_converter, output, out_parsed); +} + +// Front-ends for LowerCaseEqualsASCII. +bool LowerCaseEqualsASCII(const char* a_begin, + const char* a_end, + const char* b) { + return DoLowerCaseEqualsASCII(a_begin, a_end, b); +} + +bool LowerCaseEqualsASCII(const char* a_begin, + const char* a_end, + const char* b_begin, + const char* b_end) { + while (a_begin != a_end && b_begin != b_end && + ToLowerASCII(*a_begin) == *b_begin) { + a_begin++; + b_begin++; + } + return a_begin == a_end && b_begin == b_end; +} + +bool LowerCaseEqualsASCII(const base::char16* a_begin, + const base::char16* a_end, + const char* b) { + return DoLowerCaseEqualsASCII(a_begin, a_end, b); +} + +void DecodeURLEscapeSequences(const char* input, + int length, + CanonOutputW* output) { + RawCanonOutputT<char> unescaped_chars; + for (int i = 0; i < length; i++) { + if (input[i] == '%') { + unsigned char ch; + if (DecodeEscaped(input, &i, length, &ch)) { + unescaped_chars.push_back(ch); + } else { + // Invalid escape sequence, copy the percent literal. + unescaped_chars.push_back('%'); + } + } else { + // Regular non-escaped 8-bit character. + unescaped_chars.push_back(input[i]); + } + } + + // Convert that 8-bit to UTF-16. It's not clear IE does this at all to + // JavaScript URLs, but Firefox and Safari do. + for (int i = 0; i < unescaped_chars.length(); i++) { + unsigned char uch = static_cast<unsigned char>(unescaped_chars.at(i)); + if (uch < 0x80) { + // Non-UTF-8, just append directly + output->push_back(uch); + } else { + // next_ch will point to the last character of the decoded + // character. + int next_character = i; + unsigned code_point; + if (ReadUTFChar(unescaped_chars.data(), &next_character, + unescaped_chars.length(), &code_point)) { + // Valid UTF-8 character, convert to UTF-16. + AppendUTF16Value(code_point, output); + i = next_character; + } else { + // If there are any sequences that are not valid UTF-8, we keep + // invalid code points and promote to UTF-16. We copy all characters + // from the current position to the end of the identified sequence. + while (i < next_character) { + output->push_back(static_cast<unsigned char>(unescaped_chars.at(i))); + i++; + } + output->push_back(static_cast<unsigned char>(unescaped_chars.at(i))); + } + } + } +} + +void EncodeURIComponent(const char* input, int length, CanonOutput* output) { + for (int i = 0; i < length; ++i) { + unsigned char c = static_cast<unsigned char>(input[i]); + if (IsComponentChar(c)) + output->push_back(c); + else + AppendEscapedChar(c, output); + } +} + +bool CompareSchemeComponent(const char* spec, + const Component& component, + const char* compare_to) { + return DoCompareSchemeComponent(spec, component, compare_to); +} + +bool CompareSchemeComponent(const base::char16* spec, + const Component& component, + const char* compare_to) { + return DoCompareSchemeComponent(spec, component, compare_to); +} + +} // namespace url
diff --git a/url_util.h b/url_util.h new file mode 100644 index 0000000..458d1e8 --- /dev/null +++ b/url_util.h
@@ -0,0 +1,205 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_UTIL_H_ +#define URL_URL_UTIL_H_ + +#include <string> + +#include "base/strings/string16.h" +#include "url/url_canon.h" +#include "url/url_constants.h" +#include "url/url_export.h" +#include "url/url_parse.h" + +namespace url { + +// Init ------------------------------------------------------------------------ + +// Initialization is NOT required, it will be implicitly initialized when first +// used. However, this implicit initialization is NOT threadsafe. If you are +// using this library in a threaded environment and don't have a consistent +// "first call" (an example might be calling "AddStandardScheme" with your +// special application-specific schemes) then you will want to call initialize +// before spawning any threads. +// +// It is OK to call this function more than once, subsequent calls will simply +// "noop", unless Shutdown() was called in the mean time. This will also be a +// "noop" if other calls to the library have forced an initialization +// beforehand. +URL_EXPORT void Initialize(); + +// Cleanup is not required, except some strings may leak. For most user +// applications, this is fine. If you're using it in a library that may get +// loaded and unloaded, you'll want to unload to properly clean up your +// library. +URL_EXPORT void Shutdown(); + +// Schemes -------------------------------------------------------------------- + +// Adds an application-defined scheme to the internal list of "standard" URL +// schemes. This function is not threadsafe and can not be called concurrently +// with any other url_util function. It will assert if the list of standard +// schemes has been locked (see LockStandardSchemes). +URL_EXPORT void AddStandardScheme(const char* new_scheme); + +// Sets a flag to prevent future calls to AddStandardScheme from succeeding. +// +// This is designed to help prevent errors for multithreaded applications. +// Normal usage would be to call AddStandardScheme for your custom schemes at +// the beginning of program initialization, and then LockStandardSchemes. This +// prevents future callers from mistakenly calling AddStandardScheme when the +// program is running with multiple threads, where such usage would be +// dangerous. +// +// We could have had AddStandardScheme use a lock instead, but that would add +// some platform-specific dependencies we don't otherwise have now, and is +// overkill considering the normal usage is so simple. +URL_EXPORT void LockStandardSchemes(); + +// Locates the scheme in the given string and places it into |found_scheme|, +// which may be NULL to indicate the caller does not care about the range. +// +// Returns whether the given |compare| scheme matches the scheme found in the +// input (if any). The |compare| scheme must be a valid canonical scheme or +// the result of the comparison is undefined. +URL_EXPORT bool FindAndCompareScheme(const char* str, + int str_len, + const char* compare, + Component* found_scheme); +URL_EXPORT bool FindAndCompareScheme(const base::char16* str, + int str_len, + const char* compare, + Component* found_scheme); +inline bool FindAndCompareScheme(const std::string& str, + const char* compare, + Component* found_scheme) { + return FindAndCompareScheme(str.data(), static_cast<int>(str.size()), + compare, found_scheme); +} +inline bool FindAndCompareScheme(const base::string16& str, + const char* compare, + Component* found_scheme) { + return FindAndCompareScheme(str.data(), static_cast<int>(str.size()), + compare, found_scheme); +} + +// Returns true if the given string represents a standard URL. This means that +// either the scheme is in the list of known standard schemes. +URL_EXPORT bool IsStandard(const char* spec, const Component& scheme); +URL_EXPORT bool IsStandard(const base::char16* spec, const Component& scheme); + +// TODO(brettw) remove this. This is a temporary compatibility hack to avoid +// breaking the WebKit build when this version is synced via Chrome. +inline bool IsStandard(const char* spec, + int spec_len, + const Component& scheme) { + return IsStandard(spec, scheme); +} + +// URL library wrappers ------------------------------------------------------- + +// Parses the given spec according to the extracted scheme type. Normal users +// should use the URL object, although this may be useful if performance is +// critical and you don't want to do the heap allocation for the std::string. +// +// As with the Canonicalize* functions, the charset converter can +// be NULL to use UTF-8 (it will be faster in this case). +// +// Returns true if a valid URL was produced, false if not. On failure, the +// output and parsed structures will still be filled and will be consistent, +// but they will not represent a loadable URL. +URL_EXPORT bool Canonicalize(const char* spec, + int spec_len, + bool trim_path_end, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* output_parsed); +URL_EXPORT bool Canonicalize(const base::char16* spec, + int spec_len, + bool trim_path_end, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* output_parsed); + +// Resolves a potentially relative URL relative to the given parsed base URL. +// The base MUST be valid. The resulting canonical URL and parsed information +// will be placed in to the given out variables. +// +// The relative need not be relative. If we discover that it's absolute, this +// will produce a canonical version of that URL. See Canonicalize() for more +// about the charset_converter. +// +// Returns true if the output is valid, false if the input could not produce +// a valid URL. +URL_EXPORT bool ResolveRelative(const char* base_spec, + int base_spec_len, + const Parsed& base_parsed, + const char* relative, + int relative_length, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* output_parsed); +URL_EXPORT bool ResolveRelative(const char* base_spec, + int base_spec_len, + const Parsed& base_parsed, + const base::char16* relative, + int relative_length, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* output_parsed); + +// Replaces components in the given VALID input url. The new canonical URL info +// is written to output and out_parsed. +// +// Returns true if the resulting URL is valid. +URL_EXPORT bool ReplaceComponents(const char* spec, + int spec_len, + const Parsed& parsed, + const Replacements<char>& replacements, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* out_parsed); +URL_EXPORT bool ReplaceComponents( + const char* spec, + int spec_len, + const Parsed& parsed, + const Replacements<base::char16>& replacements, + CharsetConverter* charset_converter, + CanonOutput* output, + Parsed* out_parsed); + +// String helper functions ---------------------------------------------------- + +// Compare the lower-case form of the given string against the given ASCII +// string. This is useful for doing checking if an input string matches some +// token, and it is optimized to avoid intermediate string copies. +// +// The versions of this function that don't take a b_end assume that the b +// string is NULL terminated. +URL_EXPORT bool LowerCaseEqualsASCII(const char* a_begin, + const char* a_end, + const char* b); +URL_EXPORT bool LowerCaseEqualsASCII(const char* a_begin, + const char* a_end, + const char* b_begin, + const char* b_end); +URL_EXPORT bool LowerCaseEqualsASCII(const base::char16* a_begin, + const base::char16* a_end, + const char* b); + +// Unescapes the given string using URL escaping rules. +URL_EXPORT void DecodeURLEscapeSequences(const char* input, + int length, + CanonOutputW* output); + +// Escapes the given string as defined by the JS method encodeURIComponent. See +// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/encodeURIComponent +URL_EXPORT void EncodeURIComponent(const char* input, + int length, + CanonOutput* output); + +} // namespace url + +#endif // URL_URL_UTIL_H_
diff --git a/url_util_internal.h b/url_util_internal.h new file mode 100644 index 0000000..c72598f --- /dev/null +++ b/url_util_internal.h
@@ -0,0 +1,26 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef URL_URL_UTIL_INTERNAL_H_ +#define URL_URL_UTIL_INTERNAL_H_ + +#include <string> + +#include "base/strings/string16.h" +#include "url/url_parse.h" + +namespace url { + +// Given a string and a range inside the string, compares it to the given +// lower-case |compare_to| buffer. +bool CompareSchemeComponent(const char* spec, + const Component& component, + const char* compare_to); +bool CompareSchemeComponent(const base::char16* spec, + const Component& component, + const char* compare_to); + +} // namespace url + +#endif // URL_URL_UTIL_INTERNAL_H_
diff --git a/url_util_unittest.cc b/url_util_unittest.cc new file mode 100644 index 0000000..f84b70d --- /dev/null +++ b/url_util_unittest.cc
@@ -0,0 +1,297 @@ +// Copyright 2013 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "testing/gtest/include/gtest/gtest.h" +#include "url/url_canon.h" +#include "url/url_canon_stdstring.h" +#include "url/url_parse.h" +#include "url/url_test_utils.h" +#include "url/url_util.h" + +namespace url { + +TEST(URLUtilTest, FindAndCompareScheme) { + Component found_scheme; + + // Simple case where the scheme is found and matches. + const char kStr1[] = "http://www.com/"; + EXPECT_TRUE(FindAndCompareScheme( + kStr1, static_cast<int>(strlen(kStr1)), "http", NULL)); + EXPECT_TRUE(FindAndCompareScheme( + kStr1, static_cast<int>(strlen(kStr1)), "http", &found_scheme)); + EXPECT_TRUE(found_scheme == Component(0, 4)); + + // A case where the scheme is found and doesn't match. + EXPECT_FALSE(FindAndCompareScheme( + kStr1, static_cast<int>(strlen(kStr1)), "https", &found_scheme)); + EXPECT_TRUE(found_scheme == Component(0, 4)); + + // A case where there is no scheme. + const char kStr2[] = "httpfoobar"; + EXPECT_FALSE(FindAndCompareScheme( + kStr2, static_cast<int>(strlen(kStr2)), "http", &found_scheme)); + EXPECT_TRUE(found_scheme == Component()); + + // When there is an empty scheme, it should match the empty scheme. + const char kStr3[] = ":foo.com/"; + EXPECT_TRUE(FindAndCompareScheme( + kStr3, static_cast<int>(strlen(kStr3)), "", &found_scheme)); + EXPECT_TRUE(found_scheme == Component(0, 0)); + + // But when there is no scheme, it should fail. + EXPECT_FALSE(FindAndCompareScheme("", 0, "", &found_scheme)); + EXPECT_TRUE(found_scheme == Component()); + + // When there is a whitespace char in scheme, it should canonicalize the url + // before comparison. + const char whtspc_str[] = " \r\n\tjav\ra\nscri\tpt:alert(1)"; + EXPECT_TRUE(FindAndCompareScheme(whtspc_str, + static_cast<int>(strlen(whtspc_str)), + "javascript", &found_scheme)); + EXPECT_TRUE(found_scheme == Component(1, 10)); + + // Control characters should be stripped out on the ends, and kept in the + // middle. + const char ctrl_str[] = "\02jav\02scr\03ipt:alert(1)"; + EXPECT_FALSE(FindAndCompareScheme(ctrl_str, + static_cast<int>(strlen(ctrl_str)), + "javascript", &found_scheme)); + EXPECT_TRUE(found_scheme == Component(1, 11)); +} + +TEST(URLUtilTest, ReplaceComponents) { + Parsed parsed; + RawCanonOutputT<char> output; + Parsed new_parsed; + + // Check that the following calls do not cause crash + Replacements<char> replacements; + replacements.SetRef("test", Component(0, 4)); + ReplaceComponents(NULL, 0, parsed, replacements, NULL, &output, &new_parsed); + ReplaceComponents("", 0, parsed, replacements, NULL, &output, &new_parsed); + replacements.ClearRef(); + replacements.SetHost("test", Component(0, 4)); + ReplaceComponents(NULL, 0, parsed, replacements, NULL, &output, &new_parsed); + ReplaceComponents("", 0, parsed, replacements, NULL, &output, &new_parsed); + + replacements.ClearHost(); + ReplaceComponents(NULL, 0, parsed, replacements, NULL, &output, &new_parsed); + ReplaceComponents("", 0, parsed, replacements, NULL, &output, &new_parsed); + ReplaceComponents(NULL, 0, parsed, replacements, NULL, &output, &new_parsed); + ReplaceComponents("", 0, parsed, replacements, NULL, &output, &new_parsed); +} + +static std::string CheckReplaceScheme(const char* base_url, + const char* scheme) { + // Make sure the input is canonicalized. + RawCanonOutput<32> original; + Parsed original_parsed; + Canonicalize(base_url, strlen(base_url), true, NULL, &original, + &original_parsed); + + Replacements<char> replacements; + replacements.SetScheme(scheme, Component(0, strlen(scheme))); + + std::string output_string; + StdStringCanonOutput output(&output_string); + Parsed output_parsed; + ReplaceComponents(original.data(), original.length(), original_parsed, + replacements, NULL, &output, &output_parsed); + + output.Complete(); + return output_string; +} + +TEST(URLUtilTest, ReplaceScheme) { + EXPECT_EQ("https://google.com/", + CheckReplaceScheme("http://google.com/", "https")); + EXPECT_EQ("file://google.com/", + CheckReplaceScheme("http://google.com/", "file")); + EXPECT_EQ("http://home/Build", + CheckReplaceScheme("file:///Home/Build", "http")); + EXPECT_EQ("javascript:foo", + CheckReplaceScheme("about:foo", "javascript")); + EXPECT_EQ("://google.com/", + CheckReplaceScheme("http://google.com/", "")); + EXPECT_EQ("http://google.com/", + CheckReplaceScheme("about:google.com", "http")); + EXPECT_EQ("http:", CheckReplaceScheme("", "http")); + +#ifdef WIN32 + // Magic Windows drive letter behavior when converting to a file URL. + EXPECT_EQ("file:///E:/foo/", + CheckReplaceScheme("http://localhost/e:foo/", "file")); +#endif + + // This will probably change to "about://google.com/" when we fix + // http://crbug.com/160 which should also be an acceptable result. + EXPECT_EQ("about://google.com/", + CheckReplaceScheme("http://google.com/", "about")); + + EXPECT_EQ("http://example.com/%20hello%20# world", + CheckReplaceScheme("myscheme:example.com/ hello # world ", "http")); +} + +TEST(URLUtilTest, DecodeURLEscapeSequences) { + struct DecodeCase { + const char* input; + const char* output; + } decode_cases[] = { + {"hello, world", "hello, world"}, + {"%01%02%03%04%05%06%07%08%09%0a%0B%0C%0D%0e%0f/", + "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0B\x0C\x0D\x0e\x0f/"}, + {"%10%11%12%13%14%15%16%17%18%19%1a%1B%1C%1D%1e%1f/", + "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1B\x1C\x1D\x1e\x1f/"}, + {"%20%21%22%23%24%25%26%27%28%29%2a%2B%2C%2D%2e%2f/", + " !\"#$%&'()*+,-.//"}, + {"%30%31%32%33%34%35%36%37%38%39%3a%3B%3C%3D%3e%3f/", + "0123456789:;<=>?/"}, + {"%40%41%42%43%44%45%46%47%48%49%4a%4B%4C%4D%4e%4f/", + "@ABCDEFGHIJKLMNO/"}, + {"%50%51%52%53%54%55%56%57%58%59%5a%5B%5C%5D%5e%5f/", + "PQRSTUVWXYZ[\\]^_/"}, + {"%60%61%62%63%64%65%66%67%68%69%6a%6B%6C%6D%6e%6f/", + "`abcdefghijklmno/"}, + {"%70%71%72%73%74%75%76%77%78%79%7a%7B%7C%7D%7e%7f/", + "pqrstuvwxyz{|}~\x7f/"}, + // Test un-UTF-8-ization. + {"%e4%bd%a0%e5%a5%bd", "\xe4\xbd\xa0\xe5\xa5\xbd"}, + }; + + for (size_t i = 0; i < ARRAYSIZE_UNSAFE(decode_cases); i++) { + const char* input = decode_cases[i].input; + RawCanonOutputT<base::char16> output; + DecodeURLEscapeSequences(input, strlen(input), &output); + EXPECT_EQ(decode_cases[i].output, + test_utils::ConvertUTF16ToUTF8(base::string16(output.data(), + output.length()))); + } + + // Our decode should decode %00 + const char zero_input[] = "%00"; + RawCanonOutputT<base::char16> zero_output; + DecodeURLEscapeSequences(zero_input, strlen(zero_input), &zero_output); + EXPECT_NE("%00", test_utils::ConvertUTF16ToUTF8( + base::string16(zero_output.data(), zero_output.length()))); + + // Test the error behavior for invalid UTF-8. + const char invalid_input[] = "%e4%a0%e5%a5%bd"; + const base::char16 invalid_expected[4] = {0x00e4, 0x00a0, 0x597d, 0}; + RawCanonOutputT<base::char16> invalid_output; + DecodeURLEscapeSequences(invalid_input, strlen(invalid_input), + &invalid_output); + EXPECT_EQ(base::string16(invalid_expected), + base::string16(invalid_output.data(), invalid_output.length())); +} + +TEST(URLUtilTest, TestEncodeURIComponent) { + struct EncodeCase { + const char* input; + const char* output; + } encode_cases[] = { + {"hello, world", "hello%2C%20world"}, + {"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F", + "%01%02%03%04%05%06%07%08%09%0A%0B%0C%0D%0E%0F"}, + {"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F", + "%10%11%12%13%14%15%16%17%18%19%1A%1B%1C%1D%1E%1F"}, + {" !\"#$%&'()*+,-./", + "%20!%22%23%24%25%26%27()*%2B%2C-.%2F"}, + {"0123456789:;<=>?", + "0123456789%3A%3B%3C%3D%3E%3F"}, + {"@ABCDEFGHIJKLMNO", + "%40ABCDEFGHIJKLMNO"}, + {"PQRSTUVWXYZ[\\]^_", + "PQRSTUVWXYZ%5B%5C%5D%5E_"}, + {"`abcdefghijklmno", + "%60abcdefghijklmno"}, + {"pqrstuvwxyz{|}~\x7f", + "pqrstuvwxyz%7B%7C%7D~%7F"}, + }; + + for (size_t i = 0; i < ARRAYSIZE_UNSAFE(encode_cases); i++) { + const char* input = encode_cases[i].input; + RawCanonOutputT<char> buffer; + EncodeURIComponent(input, strlen(input), &buffer); + std::string output(buffer.data(), buffer.length()); + EXPECT_EQ(encode_cases[i].output, output); + } +} + +TEST(URLUtilTest, TestResolveRelativeWithNonStandardBase) { + // This tests non-standard (in the sense that GIsStandard() == false) + // hierarchical schemes. + struct ResolveRelativeCase { + const char* base; + const char* rel; + bool is_valid; + const char* out; + } resolve_non_standard_cases[] = { + // Resolving a relative path against a non-hierarchical URL should fail. + {"scheme:opaque_data", "/path", false, ""}, + // Resolving a relative path against a non-standard authority-based base + // URL doesn't alter the authority section. + {"scheme://Authority/", "../path", true, "scheme://Authority/path"}, + // A non-standard hierarchical base is resolved with path URL + // canoncialization rules. + {"data:/Blah:Blah/", "file.html", true, "data:/Blah:Blah/file.html"}, + {"data:/Path/../part/part2", "file.html", true, + "data:/Path/../part/file.html"}, + // Path URL canonicalization rules also apply to non-standard authority- + // based URLs. + {"custom://Authority/", "file.html", true, + "custom://Authority/file.html"}, + {"custom://Authority/", "other://Auth/", true, "other://Auth/"}, + {"custom://Authority/", "../../file.html", true, + "custom://Authority/file.html"}, + {"custom://Authority/path/", "file.html", true, + "custom://Authority/path/file.html"}, + {"custom://Authority:NoCanon/path/", "file.html", true, + "custom://Authority:NoCanon/path/file.html"}, + // It's still possible to get an invalid path URL. + {"custom://Invalid:!#Auth/", "file.html", false, ""}, + // A path with an authority section gets canonicalized under standard URL + // rules, even though the base was non-standard. + {"content://content.Provider/", "//other.Provider", true, + "content://other.provider/"}, + // Resolving an absolute URL doesn't cause canonicalization of the + // result. + {"about:blank", "custom://Authority", true, "custom://Authority"}, + // Fragment URLs can be resolved against a non-standard base. + {"scheme://Authority/path", "#fragment", true, + "scheme://Authority/path#fragment"}, + {"scheme://Authority/", "#fragment", true, "scheme://Authority/#fragment"}, + // Resolving should fail if the base URL is authority-based but is + // missing a path component (the '/' at the end). + {"scheme://Authority", "path", false, ""}, + // Test resolving a fragment (only) against any kind of base-URL. + {"about:blank", "#id42", true, "about:blank#id42" }, + {"about:blank", " #id42", true, "about:blank#id42" }, + {"about:blank#oldfrag", "#newfrag", true, "about:blank#newfrag" }, + // A surprising side effect of allowing fragments to resolve against + // any URL scheme is we might break javascript: URLs by doing so... + {"javascript:alert('foo#bar')", "#badfrag", true, + "javascript:alert('foo#badfrag" }, + }; + + for (size_t i = 0; i < ARRAYSIZE_UNSAFE(resolve_non_standard_cases); i++) { + const ResolveRelativeCase& test_data = resolve_non_standard_cases[i]; + Parsed base_parsed; + ParsePathURL(test_data.base, strlen(test_data.base), false, &base_parsed); + + std::string resolved; + StdStringCanonOutput output(&resolved); + Parsed resolved_parsed; + bool valid = ResolveRelative(test_data.base, strlen(test_data.base), + base_parsed, test_data.rel, + strlen(test_data.rel), NULL, &output, + &resolved_parsed); + output.Complete(); + + EXPECT_EQ(test_data.is_valid, valid) << i; + if (test_data.is_valid && valid) + EXPECT_EQ(test_data.out, resolved) << i; + } +} + +} // namespace url