# 2011 May 06
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix e_uri

db close

proc parse_uri {uri} {
  testvfs tvfs2
  testvfs tvfs 
  tvfs filter xOpen
  tvfs script parse_uri_open_cb

  set ::uri_open [list]
  set DB [sqlite3_open_v2 $uri {
    SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_WAL
  } tvfs]
  sqlite3_close $DB
  tvfs delete
  tvfs2 delete

  set ::uri_open
}
proc parse_uri_open_cb {method file arglist} {
  set ::uri_open [list $file $arglist]
}

proc open_uri_error {uri} {
  set flags {SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_WAL}
  set DB [sqlite3_open_v2 $uri $flags ""]
  set e [sqlite3_errmsg $DB]
  sqlite3_close $DB
  set e
}

# EVIDENCE-OF: R-35840-33204 If URI filename interpretation is enabled,
# and the filename argument begins with "file:", then the filename is
# interpreted as a URI.
#
# EVIDENCE-OF: R-24124-56960 URI filename interpretation is enabled if
# the SQLITE_OPEN_URI flag is set in the fourth argument to
# sqlite3_open_v2(), or if it has been enabled globally using the
# SQLITE_CONFIG_URI option with the sqlite3_config() method or by the
# SQLITE_USE_URI compile-time option.
#
if {$tcl_platform(platform) == "unix"} {
  set flags [list SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE]

  # Tests with SQLITE_CONFIG_URI configured to false. URI intepretation is
  # only enabled if the SQLITE_OPEN_URI flag is specified.
  sqlite3_shutdown
  sqlite3_config_uri 0
  do_test 1.1 {
    forcedelete file:test.db test.db
    set DB [sqlite3_open_v2 file:test.db [concat $flags SQLITE_OPEN_URI] ""]
    list [file exists file:test.db] [file exists test.db]
  } {0 1}
  do_test 1.2 {
    forcedelete file:test.db2 test.db2
    set STMT [sqlite3_prepare $DB "ATTACH 'file:test.db2' AS aux" -1 dummy]
    sqlite3_step $STMT
    sqlite3_finalize $STMT
    list [file exists file:test.db2] [file exists test.db2]
  } {0 1}
  sqlite3_close $DB
  do_test 1.3 {
    forcedelete file:test.db test.db
    set DB [sqlite3_open_v2 file:test.db [concat $flags] ""]
    list [file exists file:test.db] [file exists test.db]
  } {1 0}
  do_test 1.4 {
    forcedelete file:test.db2 test.db2
    set STMT [sqlite3_prepare $DB "ATTACH 'file:test.db2' AS aux" -1 dummy]
    sqlite3_step $STMT
    sqlite3_finalize $STMT
    list [file exists file:test.db2] [file exists test.db2]
  } {1 0}
  sqlite3_close $DB

  # Tests with SQLITE_CONFIG_URI configured to true. URI intepretation is
  # enabled with or without SQLITE_OPEN_URI.
  #
  sqlite3_shutdown
  sqlite3_config_uri 1
  do_test 1.5 {
    forcedelete file:test.db test.db
    set DB [sqlite3_open_v2 file:test.db [concat $flags SQLITE_OPEN_URI] ""]
    list [file exists file:test.db] [file exists test.db]
  } {0 1}
  do_test 1.6 {
    forcedelete file:test.db2 test.db2
    set STMT [sqlite3_prepare $DB "ATTACH 'file:test.db2' AS aux" -1 dummy]
    sqlite3_step $STMT
    sqlite3_finalize $STMT
    list [file exists file:test.db2] [file exists test.db2]
  } {0 1}
  sqlite3_close $DB
  do_test 1.7 {
    forcedelete file:test.db test.db
    set DB [sqlite3_open_v2 file:test.db [concat $flags] ""]
    list [file exists file:test.db] [file exists test.db]
  } {0 1}
  do_test 1.8 {
    forcedelete file:test.db2 test.db2
    set STMT [sqlite3_prepare $DB "ATTACH 'file:test.db2' AS aux" -1 dummy]
    sqlite3_step $STMT
    sqlite3_finalize $STMT
    list [file exists file:test.db2] [file exists test.db2]
  } {0 1}
  sqlite3_close $DB
}

# ensure uri processing enabled for the rest of the tests
sqlite3_shutdown
sqlite3_config_uri 1

# EVIDENCE-OF: R-06842-00595 If the URI contains an authority, then it
# must be either an empty string or the string "localhost".
#
# EVIDENCE-OF: R-17482-00398 If the authority is not an empty string or
# "localhost", an error is returned to the caller.
#
if {$tcl_platform(platform) == "unix"} {
  set flags [list SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_URI]
  foreach {tn uri error} "
    1  {file://localhost[test_pwd /]test.db}   {not an error}
    2  {file://[test_pwd /]test.db}            {not an error}
    3  {file://x[test_pwd /]test.db}           {invalid uri authority: x}
    4  {file://invalid[test_pwd /]test.db}     {invalid uri authority: invalid}
  " {
    do_test 2.$tn {
      set DB [sqlite3_open_v2 $uri $flags ""]
      set e [sqlite3_errmsg $DB]
      sqlite3_close $DB
      set e
    } $error
  }
}

# EVIDENCE-OF: R-45981-25528 The fragment component of a URI, if
# present, is ignored.
#
#   It is difficult to test that something is ignored correctly. So these tests
#   just show that adding a fragment does not interfere with the pathname or
#   parameters passed through to the VFS xOpen() methods.
#
foreach {tn uri parse} "
  1    {file:test.db#abc}      {[test_pwd / {}]test.db {}}
  2    {file:test.db?a=b#abc}  {[test_pwd / {}]test.db {a b}}
  3    {file:test.db?a=b#?c=d} {[test_pwd / {}]test.db {a b}}
" {
  do_filepath_test 3.$tn { parse_uri $uri } $parse
}

# EVIDENCE-OF: R-62557-09390 SQLite uses the path component of the URI
# as the name of the disk file which contains the database.
#
# EVIDENCE-OF: R-28659-11035 If the path begins with a '/' character,
# then it is interpreted as an absolute path.
#
# EVIDENCE-OF: R-46234-61323 If the path does not begin with a '/'
# (meaning that the authority section is omitted from the URI) then the
# path is interpreted as a relative path.
#
foreach {tn uri parse} "
  1    {file:test.db}             {[test_pwd / {}]test.db {}}
  2    {file:/test.db}            {/test.db {}}
  3    {file:///test.db}          {/test.db {}}
  4    {file://localhost/test.db} {/test.db {}}
  5    {file:/a/b/c/test.db}      {/a/b/c/test.db {}}
" {
  do_filepath_test 4.$tn { parse_uri $uri } $parse
}

# EVIDENCE-OF: R-01612-30877 The "vfs" parameter may be used to specify
# the name of a VFS object that provides the operating system interface
# that should be used to access the database file on disk.
#
#   The above is tested by cases 1.* below.
#
# EVIDENCE-OF: R-52293-58497 If this option is set to an empty string
# the default VFS object is used.
#
#   The above is tested by cases 2.* below.
#
# EVIDENCE-OF: R-31855-18665 If sqlite3_open_v2() is used and the vfs
# option is present, then the VFS specified by the option takes
# precedence over the value passed as the fourth parameter to
# sqlite3_open_v2().
#
#   The above is tested by cases 3.* below.
#
proc vfs_open_cb {name args} {
  set ::vfs $name
}
foreach {name default} {vfs1 0 vfs2 0 vfs3 1} {
  testvfs $name -default $default
  $name filter xOpen
  $name script [list vfs_open_cb $name]
}
foreach {tn uri defvfs vfs} {
  1.1    "file:test.db?vfs=vfs1"    ""    vfs1
  1.2    "file:test.db?vfs=vfs2"    ""    vfs2

  2.1    "file:test.db"             vfs1  vfs1
  2.2    "file:test.db?vfs="        vfs1  vfs3

  3.1    "file:test.db?vfs=vfs1"    vfs2  vfs1
  3.2    "file:test.db?vfs=vfs2"    vfs1  vfs2
  3.3    "file:test.db?xvfs=vfs1"   vfs2  vfs2
  3.4    "file:test.db?xvfs=vfs2"   vfs1  vfs1
} {
  do_test 5.$tn {
    set flags [list SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_URI]
    sqlite3_close [
      sqlite3_open_v2 $uri $flags $defvfs
    ]
    set ::vfs
  } $vfs
}
vfs1 delete
vfs2 delete
vfs3 delete

# EVIDENCE-OF: R-48365-36308 Specifying an unknown VFS is an error.
#
set flags [list SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_URI]
do_test 6.1 {
  set DB [sqlite3_open_v2 file:test.db?vfs=nosuchvfs $flags ""]
  set errmsg [sqlite3_errmsg $DB]
  sqlite3_close $DB
  set errmsg
} {no such vfs: nosuchvfs}


# EVIDENCE-OF: R-44013-13102 The mode parameter may be set to either
# "ro", "rw", "rwc", or "memory". Attempting to set it to any other
# value is an error
#
sqlite3 db test.db
db close
foreach {tn uri error} "
  1    {file:test.db?mode=ro}    {not an error}
  2    {file:test.db?mode=rw}    {not an error}
  3    {file:test.db?mode=rwc}   {not an error}
  4    {file:test.db?mode=Ro}    {no such access mode: Ro}
  5    {file:test.db?mode=Rw}    {no such access mode: Rw}
  6    {file:test.db?mode=Rwc}   {no such access mode: Rwc}
  7    {file:test.db?mode=memory} {not an error}
  8    {file:test.db?mode=MEMORY} {no such access mode: MEMORY}
" {
  do_test 7.$tn { open_uri_error $uri } $error
}


# EVIDENCE-OF: R-43036-46756 If "ro" is specified, then the database is
# opened for read-only access, just as if the SQLITE_OPEN_READONLY flag
# had been set in the third argument to sqlite3_open_v2().
#
# EVIDENCE-OF: R-40137-26050 If the mode option is set to "rw", then the
# database is opened for read-write (but not create) access, as if
# SQLITE_OPEN_READWRITE (but not SQLITE_OPEN_CREATE) had been set.
#
# EVIDENCE-OF: R-26845-32976 Value "rwc" is equivalent to setting both
# SQLITE_OPEN_READWRITE and SQLITE_OPEN_CREATE.
#
foreach {tn uri read write create} {
  1    {file:test.db?mode=ro}     1 0 0
  2    {file:test.db?mode=rw}     1 1 0
  3    {file:test.db?mode=rwc}    1 1 1
} {
  set RES(c,0) {1 {unable to open database file}}
  set RES(c,1) {0 {}}
  set RES(w,0) {1 {attempt to write a readonly database}}
  set RES(w,1) {0 {}}
  set RES(r,0) {1 {this never happens}}
  set RES(r,1) {0 {a b}}

  # Test CREATE access:
  forcedelete test.db
  do_test 8.$tn.c { list [catch { sqlite3 db $uri } msg] $msg } $RES(c,$create)
  catch { db close }

  sqlite3 db test.db
  db eval { CREATE TABLE t1(a, b) ; INSERT INTO t1 VALUES('a', 'b') ;}
  db close
  
  # Test READ access:
  do_test 8.$tn.r { 
    sqlite3 db $uri
    catchsql { SELECT * FROM t1 }
  } $RES(r,$read)
  
  # Test WRITE access:
  do_test 8.$tn.w { 
    sqlite3 db $uri
    catchsql { INSERT INTO t1 VALUES(1, 2) }
  } $RES(w,$write)

  catch {db close}
}

# EVIDENCE-OF: R-20590-08726 It is an error to specify a value for the
# mode parameter that is less restrictive than that specified by the
# flags passed in the third parameter to sqlite3_open_v2().
#
forcedelete test.db
sqlite3 db test.db
db close
foreach {tn uri flags error} {
  1   {file:test.db?mode=ro}   ro    {not an error}
  2   {file:test.db?mode=ro}   rw    {not an error}
  3   {file:test.db?mode=ro}   rwc   {not an error}

  4   {file:test.db?mode=rw}   ro    {access mode not allowed: rw}
  5   {file:test.db?mode=rw}   rw    {not an error}
  6   {file:test.db?mode=rw}   rwc   {not an error}

  7   {file:test.db?mode=rwc}  ro    {access mode not allowed: rwc}
  8   {file:test.db?mode=rwc}  rw    {access mode not allowed: rwc}
  9   {file:test.db?mode=rwc}  rwc   {not an error}
} {
  set f(ro)  [list SQLITE_OPEN_READONLY SQLITE_OPEN_URI]
  set f(rw)  [list SQLITE_OPEN_READWRITE SQLITE_OPEN_URI]
  set f(rwc) [list SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_URI]

  set DB [sqlite3_open_v2 $uri $f($flags) ""]
  set e [sqlite3_errmsg $DB]
  sqlite3_close $DB

  do_test 9.$tn { set e } $error
}

# EVIDENCE-OF: R-23182-54295 The cache parameter may be set to either
# "shared" or "private".
sqlite3 db test.db
db close
foreach {tn uri error} "
  1    {file:test.db?cache=private}    {not an error}
  2    {file:test.db?cache=shared}     {not an error}
  3    {file:test.db?cache=yes}        {no such cache mode: yes}
  4    {file:test.db?cache=}           {no such cache mode: }
" {
  do_test 10.$tn { open_uri_error $uri } $error
}

# EVIDENCE-OF: R-23027-03515 Setting it to "shared" is equivalent to
# setting the SQLITE_OPEN_SHAREDCACHE bit in the flags argument passed
# to sqlite3_open_v2().
#
# EVIDENCE-OF: R-49793-28525 Setting the cache parameter to "private" is
# equivalent to setting the SQLITE_OPEN_PRIVATECACHE bit.
#
# EVIDENCE-OF: R-31773-41793 If sqlite3_open_v2() is used and the
# "cache" parameter is present in a URI filename, its value overrides
# any behavior requested by setting SQLITE_OPEN_PRIVATECACHE or
# SQLITE_OPEN_SHAREDCACHE flag.
#
set orig [sqlite3_enable_shared_cache]
foreach {tn uri flags shared_default isshared} {
  1.1   "file:test.db"                  ""         0    0
  1.2   "file:test.db"                  ""         1    1
  1.3   "file:test.db"                  private    0    0
  1.4   "file:test.db"                  private    1    0
  1.5   "file:test.db"                  shared     0    1
  1.6   "file:test.db"                  shared     1    1

  2.1   "file:test.db?cache=private"    ""         0    0
  2.2   "file:test.db?cache=private"    ""         1    0
  2.3   "file:test.db?cache=private"    private    0    0
  2.4   "file:test.db?cache=private"    private    1    0
  2.5   "file:test.db?cache=private"    shared     0    0
  2.6   "file:test.db?cache=private"    shared     1    0

  3.1   "file:test.db?cache=shared"     ""         0    1
  3.2   "file:test.db?cache=shared"     ""         1    1
  3.3   "file:test.db?cache=shared"     private    0    1
  3.4   "file:test.db?cache=shared"     private    1    1
  3.5   "file:test.db?cache=shared"     shared     0    1
  3.6   "file:test.db?cache=shared"     shared     1    1
} {
  forcedelete test.db
  sqlite3_enable_shared_cache 1
  sqlite3 db test.db
  sqlite3_enable_shared_cache 0

  db eval {
    CREATE TABLE t1(x);
    INSERT INTO t1 VALUES('ok');
  }

  unset -nocomplain f
  set f()        {SQLITE_OPEN_READWRITE SQLITE_OPEN_CREATE SQLITE_OPEN_URI}
  set f(shared)  [concat $f() SQLITE_OPEN_SHAREDCACHE]
  set f(private) [concat $f() SQLITE_OPEN_PRIVATECACHE]

  sqlite3_enable_shared_cache $shared_default
  set DB [sqlite3_open_v2 $uri $f($flags) ""]

  set STMT [sqlite3_prepare $DB "SELECT * FROM t1" -1 dummy]

  db eval {
    BEGIN;
      INSERT INTO t1 VALUES('ko');
  }

  sqlite3_step $STMT
  sqlite3_finalize $STMT

  set RES(0) {not an error}
  set RES(1) {database table is locked: t1}

  do_test 11.$tn { sqlite3_errmsg $DB } $RES($isshared)

  sqlite3_close $DB
  db close
}
sqlite3_enable_shared_cache $orig

# EVIDENCE-OF: R-63472-46769 Specifying an unknown parameter in the
# query component of a URI is not an error.
#
do_filepath_test 12.1 {
  parse_uri file://localhost/test.db?an=unknown&parameter=is&ok=
} {/test.db {an unknown parameter is ok {}}}
do_filepath_test 12.2 {
  parse_uri file://localhost/test.db?an&unknown&parameter&is&ok
} {/test.db {an {} unknown {} parameter {} is {} ok {}}}

# EVIDENCE-OF: R-27458-04043 URI hexadecimal escape sequences (%HH) are
# supported within the path and query components of a URI.
#
# EVIDENCE-OF: R-52765-50368 Before the path or query components of a
# URI filename are interpreted, they are encoded using UTF-8 and all
# hexadecimal escape sequences replaced by a single byte containing the
# corresponding octet.
#
#   The second of the two statements above is tested by creating a
#   multi-byte utf-8 character using a sequence of %HH escapes.
#
foreach {tn uri parse} "
  1  {file:/test.%64%62}                             {/test.db {}}
  2  {file:/test.db?%68%65%6c%6c%6f=%77%6f%72%6c%64} {/test.db {hello world}}
  3  {file:/%C3%BF.db}                               {/\xFF.db {}}
" {
  do_filepath_test 13.$tn { parse_uri $uri } $parse
}

finish_test