getDBkey();
// $hash = md5( $name );
//
// $url = "{$wgUploadPath}/thumb/" . $hash{0} . "/" .
// substr( $hash, 0, 2 ) . "/{$name}";
// return wfUrlencode( $url );
//}
function wfImageArchiveUrl( $name )
{
global $wgUploadPath;
$hash = md5( substr( $name, 15) );
$url = "{$wgUploadPath}/archive/" . $hash{0} . "/" .
substr( $hash, 0, 2 ) . "/{$name}";
return wfUrlencode($url);
}
function wfUrlencode ( $s )
{
$s = urlencode( $s );
$s = preg_replace( "/%3[Aa]/", ":", $s );
$s = preg_replace( "/%2[Ff]/", "/", $s );
return $s;
}
function wfUtf8Sequence($codepoint) {
if($codepoint < 0x80) return chr($codepoint);
if($codepoint < 0x800) return chr($codepoint >> 6 & 0x3f | 0xc0) .
chr($codepoint & 0x3f | 0x80);
if($codepoint < 0x10000) return chr($codepoint >> 12 & 0x0f | 0xe0) .
chr($codepoint >> 6 & 0x3f | 0x80) .
chr($codepoint & 0x3f | 0x80);
if($codepoint < 0x100000) return chr($codepoint >> 18 & 0x07 | 0xf0) . # Double-check this
chr($codepoint >> 12 & 0x3f | 0x80) .
chr($codepoint >> 6 & 0x3f | 0x80) .
chr($codepoint & 0x3f | 0x80);
# Doesn't yet handle outside the BMP
return "$codepoint;";
}
function wfMungeToUtf8($string) {
global $wgInputEncoding; # This is debatable
#$string = iconv($wgInputEncoding, "UTF-8", $string);
$string = preg_replace ( '/([0-9]+);/e', 'wfUtf8Sequence($1)', $string );
$string = preg_replace ( '/([0-9a-f]+);/ie', 'wfUtf8Sequence(0x$1)', $string );
# Should also do named entities here
return $string;
}
# Converts a single UTF-8 character into the corresponding HTML character entity
function wfUtf8Entity( $matches ) {
$char = $matches[0];
# Find the length
$z = ord( $char{0} );
if ( $z & 0x80 ) {
$length = 0;
while ( $z & 0x80 ) {
$length++;
$z <<= 1;
}
} else {
$length = 1;
}
if ( $length != strlen( $char ) ) {
return "";
}
if ( $length == 1 ) {
return $char;
}
# Mask off the length-determining bits and shift back to the original location
$z &= 0xff;
$z >>= $length;
# Add in the free bits from subsequent bytes
for ( $i=1; $i<$length; $i++ ) {
$z <<= 6;
$z |= ord( $char{$i} ) & 0x3f;
}
# Make entity
return "$z;";
}
# Converts all multi-byte characters in a UTF-8 string into the appropriate character entity
function wfUtf8ToHTML($string) {
return preg_replace_callback( '/[\\xc0-\\xfd][\\x80-\\xbf]*/', 'wfUtf8Entity', $string );
}
function wfDebug( $text, $logonly = false )
{
global $wgOut, $wgDebugLogFile, $wgDebugComments, $wgProfileOnly;
if ( isset( $wgOut ) && $wgDebugComments && !$logonly ) {
$wgOut->debug( $text );
}
if ( "" != $wgDebugLogFile && !$wgProfileOnly ) {
error_log( $text, 3, $wgDebugLogFile );
}
}
function logProfilingData()
{
global $wgRequestTime, $wgDebugLogFile;
global $wgProfiling, $wgProfileStack, $wgProfileLimit, $wgUser;
$now = wfTime();
list( $usec, $sec ) = explode( " ", $wgRequestTime );
$start = (float)$sec + (float)$usec;
$elapsed = $now - $start;
if ( $wgProfiling ) {
$prof = wfGetProfilingOutput( $start, $elapsed );
$forward = "";
if( !empty( $_SERVER['HTTP_X_FORWARDED_FOR'] ) )
$forward = " forwarded for " . $_SERVER['HTTP_X_FORWARDED_FOR'];
if( !empty( $_SERVER['HTTP_CLIENT_IP'] ) )
$forward .= " client IP " . $_SERVER['HTTP_CLIENT_IP'];
if( !empty( $_SERVER['HTTP_FROM'] ) )
$forward .= " from " . $_SERVER['HTTP_FROM'];
if( $forward )
$forward = "\t(proxied via {$_SERVER['REMOTE_ADDR']}{$forward})";
if($wgUser->getId() == 0)
$forward .= " anon";
$log = sprintf( "%s\t%04.3f\t%s\n",
gmdate( "YmdHis" ), $elapsed,
urldecode( $_SERVER['REQUEST_URI'] . $forward ) );
if ( "" != $wgDebugLogFile ) {
error_log( $log . $prof, 3, $wgDebugLogFile );
}
}
}
function wfReadOnly()
{
global $wgReadOnlyFile;
if ( "" == $wgReadOnlyFile ) { return false; }
return is_file( $wgReadOnlyFile );
}
$wgReplacementKeys = array( "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", "$9" );
# Get a message from anywhere
function wfMsg( $key ) {
$args = func_get_args();
if ( count( $args ) ) {
array_shift( $args );
}
return wfMsgReal( $key, $args, true );
}
# Get a message from the language file
function wfMsgNoDB( $key ) {
$args = func_get_args();
if ( count( $args ) ) {
array_shift( $args );
}
return wfMsgReal( $key, $args, false );
}
# Really get a message
function wfMsgReal( $key, $args, $useDB ) {
global $wgReplacementKeys, $wgMessageCache, $wgLang;
$fname = "wfMsg";
wfProfileIn( $fname );
if ( $wgMessageCache ) {
$message = $wgMessageCache->get( $key, $useDB );
} elseif ( $wgLang ) {
$message = $wgLang->getMessage( $key );
} else {
wfDebug( "No language object when getting $key\n" );
$message = "<$key>";
}
# Replace arguments
if( count( $args ) ) {
$message = str_replace( $wgReplacementKeys, $args, $message );
}
wfProfileOut( $fname );
return $message;
}
function wfCleanFormFields( $fields )
{
wfDebugDieBacktrace( "Call to obsolete wfCleanFormFields(). Use wgRequest instead..." );
}
function wfMungeQuotes( $in )
{
$out = str_replace( "%", "%25", $in );
$out = str_replace( "'", "%27", $out );
$out = str_replace( "\"", "%22", $out );
return $out;
}
function wfDemungeQuotes( $in )
{
$out = str_replace( "%22", "\"", $in );
$out = str_replace( "%27", "'", $out );
$out = str_replace( "%25", "%", $out );
return $out;
}
function wfCleanQueryVar( $var )
{
wfDebugDieBacktrace( "Call to obsolete function wfCleanQueryVar(); use wgRequest instead" );
}
function wfSearch( $s )
{
$se = new SearchEngine( $s );
$se->showResults();
}
function wfGo( $s )
{ # pick the nearest match
$se = new SearchEngine( $s );
$se->goResult();
}
# Just like exit() but makes a note of it.
function wfAbruptExit(){
static $called = false;
if ( $called ){
exit();
}
$called = true;
if( function_exists( "debug_backtrace" ) ){ // PHP >= 4.3
$bt = debug_backtrace();
for($i = 0; $i < count($bt) ; $i++){
$file = $bt[$i]["file"];
$line = $bt[$i]["line"];
wfDebug("WARNING: Abrupt exit in $file at line $line\n");
}
} else {
wfDebug("WARNING: Abrupt exit\n");
}
exit();
}
function wfDebugDieBacktrace( $msg = "" ) {
$msg .= "\n
Backtrace:
\n\n";
$backtrace = debug_backtrace();
foreach( $backtrace as $call ) {
$f = explode( DIRECTORY_SEPARATOR, $call['file'] );
$file = $f[count($f)-1];
$msg .= "- " . $file . " line " . $call['line'] . ", in ";
if( !empty( $call['class'] ) ) $msg .= $call['class'] . "::";
$msg .= $call['function'] . "()
\n";
}
die( $msg );
}
function wfNumberOfArticles()
{
global $wgNumberOfArticles;
wfLoadSiteStats();
return $wgNumberOfArticles;
}
/* private */ function wfLoadSiteStats()
{
global $wgNumberOfArticles, $wgTotalViews, $wgTotalEdits;
if ( -1 != $wgNumberOfArticles ) return;
$sql = "SELECT ss_total_views, ss_total_edits, ss_good_articles " .
"FROM site_stats WHERE ss_row_id=1";
$res = wfQuery( $sql, DB_READ, "wfLoadSiteStats" );
if ( 0 == wfNumRows( $res ) ) { return; }
else {
$s = wfFetchObject( $res );
$wgTotalViews = $s->ss_total_views;
$wgTotalEdits = $s->ss_total_edits;
$wgNumberOfArticles = $s->ss_good_articles;
}
}
function wfEscapeHTML( $in )
{
return str_replace(
array( "&", "\"", ">", "<" ),
array( "&", """, ">", "<" ),
$in );
}
function wfEscapeHTMLTagsOnly( $in ) {
return str_replace(
array( "\"", ">", "<" ),
array( """, ">", "<" ),
$in );
}
function wfUnescapeHTML( $in )
{
$in = str_replace( "<", "<", $in );
$in = str_replace( ">", ">", $in );
$in = str_replace( """, "\"", $in );
$in = str_replace( "&", "&", $in );
return $in;
}
function wfImageDir( $fname )
{
global $wgUploadDirectory;
$hash = md5( $fname );
$oldumask = umask(0);
$dest = $wgUploadDirectory . "/" . $hash{0};
if ( ! is_dir( $dest ) ) { mkdir( $dest, 0777 ); }
$dest .= "/" . substr( $hash, 0, 2 );
if ( ! is_dir( $dest ) ) { mkdir( $dest, 0777 ); }
umask( $oldumask );
return $dest;
}
function wfImageThumbDir( $fname , $subdir="thumb")
{
return wfImageArchiveDir( $fname, $subdir );
}
function wfImageArchiveDir( $fname , $subdir="archive")
{
global $wgUploadDirectory;
$hash = md5( $fname );
$oldumask = umask(0);
# Suppress warning messages here; if the file itself can't
# be written we'll worry about it then.
$archive = "{$wgUploadDirectory}/{$subdir}";
if ( ! is_dir( $archive ) ) { @mkdir( $archive, 0777 ); }
$archive .= "/" . $hash{0};
if ( ! is_dir( $archive ) ) { @mkdir( $archive, 0777 ); }
$archive .= "/" . substr( $hash, 0, 2 );
if ( ! is_dir( $archive ) ) { @mkdir( $archive, 0777 ); }
umask( $oldumask );
return $archive;
}
function wfRecordUpload( $name, $oldver, $size, $desc, $copyStatus = "", $source = "" )
{
global $wgUser, $wgLang, $wgTitle, $wgOut, $wgDeferredUpdateList;
global $wgUseCopyrightUpload;
$fname = "wfRecordUpload";
$sql = "SELECT img_name,img_size,img_timestamp,img_description,img_user," .
"img_user_text FROM image WHERE img_name='" . wfStrencode( $name ) . "'";
$res = wfQuery( $sql, DB_READ, $fname );
$now = wfTimestampNow();
$won = wfInvertTimestamp( $now );
$size = IntVal( $size );
if ( $wgUseCopyrightUpload )
{
$textdesc = "== " . wfMsg ( "filedesc" ) . " ==\n" . $desc . "\n" .
"== " . wfMsg ( "filestatus" ) . " ==\n" . $copyStatus . "\n" .
"== " . wfMsg ( "filesource" ) . " ==\n" . $source ;
}
else $textdesc = $desc ;
$now = wfTimestampNow();
$won = wfInvertTimestamp( $now );
if ( 0 == wfNumRows( $res ) ) {
$sql = "INSERT INTO image (img_name,img_size,img_timestamp," .
"img_description,img_user,img_user_text) VALUES ('" .
wfStrencode( $name ) . "',$size,'{$now}','" .
wfStrencode( $desc ) . "', '" . $wgUser->getID() .
"', '" . wfStrencode( $wgUser->getName() ) . "')";
wfQuery( $sql, DB_WRITE, $fname );
$sql = "SELECT cur_id,cur_text FROM cur WHERE cur_namespace=" .
Namespace::getImage() . " AND cur_title='" .
wfStrencode( $name ) . "'";
$res = wfQuery( $sql, DB_READ, $fname );
if ( 0 == wfNumRows( $res ) ) {
$common =
Namespace::getImage() . ",'" .
wfStrencode( $name ) . "','" .
wfStrencode( $desc ) . "','" . $wgUser->getID() . "','" .
wfStrencode( $wgUser->getName() ) . "','" . $now .
"',1";
$sql = "INSERT INTO cur (cur_namespace,cur_title," .
"cur_comment,cur_user,cur_user_text,cur_timestamp,cur_is_new," .
"cur_text,inverse_timestamp,cur_touched) VALUES (" .
$common .
",'" . wfStrencode( $textdesc ) . "','{$won}','{$now}')";
wfQuery( $sql, DB_WRITE, $fname );
$id = wfInsertId() or 0; # We should throw an error instead
$titleObj = Title::makeTitle( NS_IMAGE, $name );
RecentChange::notifyNew( $now, $titleObj, 0, $wgUser, $desc );
$u = new SearchUpdate( $id, $name, $desc );
$u->doUpdate();
}
} else {
$s = wfFetchObject( $res );
$sql = "INSERT INTO oldimage (oi_name,oi_archive_name,oi_size," .
"oi_timestamp,oi_description,oi_user,oi_user_text) VALUES ('" .
wfStrencode( $s->img_name ) . "','" .
wfStrencode( $oldver ) .
"',{$s->img_size},'{$s->img_timestamp}','" .
wfStrencode( $s->img_description ) . "','" .
wfStrencode( $s->img_user ) . "','" .
wfStrencode( $s->img_user_text) . "')";
wfQuery( $sql, DB_WRITE, $fname );
$sql = "UPDATE image SET img_size={$size}," .
"img_timestamp='" . wfTimestampNow() . "',img_user='" .
$wgUser->getID() . "',img_user_text='" .
wfStrencode( $wgUser->getName() ) . "', img_description='" .
wfStrencode( $desc ) . "' WHERE img_name='" .
wfStrencode( $name ) . "'";
wfQuery( $sql, DB_WRITE, $fname );
$sql = "UPDATE cur SET cur_touched='{$now}' WHERE cur_namespace=" .
Namespace::getImage() . " AND cur_title='" .
wfStrencode( $name ) . "'";
wfQuery( $sql, DB_WRITE, $fname );
}
$log = new LogPage( wfMsg( "uploadlogpage" ), wfMsg( "uploadlogpagetext" ) );
$da = wfMsg( "uploadedimage", "[[:" . $wgLang->getNsText(
Namespace::getImage() ) . ":{$name}|{$name}]]" );
$ta = wfMsg( "uploadedimage", $name );
$log->addEntry( $da, $desc, $ta );
}
/* Some generic result counters, pulled out of SearchEngine */
function wfShowingResults( $offset, $limit )
{
global $wgLang;
return wfMsg( "showingresults", $wgLang->formatNum( $limit ), $wgLang->formatNum( $offset+1 ) );
}
function wfShowingResultsNum( $offset, $limit, $num )
{
global $wgLang;
return wfMsg( "showingresultsnum", $wgLang->formatNum( $limit ), $wgLang->formatNum( $offset+1 ), $wgLang->formatNum( $num ) );
}
function wfViewPrevNext( $offset, $limit, $link, $query = "", $atend = false )
{
global $wgUser, $wgLang;
$fmtLimit = $wgLang->formatNum( $limit );
$prev = wfMsg( "prevn", $fmtLimit );
$next = wfMsg( "nextn", $fmtLimit );
$link = wfUrlencode( $link );
$sk = $wgUser->getSkin();
if ( 0 != $offset ) {
$po = $offset - $limit;
if ( $po < 0 ) { $po = 0; }
$q = "limit={$limit}&offset={$po}";
if ( "" != $query ) { $q .= "&{$query}"; }
$plink = "{$prev}";
} else { $plink = $prev; }
$no = $offset + $limit;
$q = "limit={$limit}&offset={$no}";
if ( "" != $query ) { $q .= "&{$query}"; }
if ( $atend ) {
$nlink = $next;
} else {
$nlink = "{$next}";
}
$nums = wfNumLink( $offset, 20, $link , $query ) . " | " .
wfNumLink( $offset, 50, $link, $query ) . " | " .
wfNumLink( $offset, 100, $link, $query ) . " | " .
wfNumLink( $offset, 250, $link, $query ) . " | " .
wfNumLink( $offset, 500, $link, $query );
return wfMsg( "viewprevnext", $plink, $nlink, $nums );
}
function wfNumLink( $offset, $limit, $link, $query = "" )
{
global $wgUser, $wgLang;
if ( "" == $query ) { $q = ""; }
else { $q = "{$query}&"; }
$q .= "limit={$limit}&offset={$offset}";
$fmtLimit = $wgLang->formatNum( $limit );
$s = "{$fmtLimit}";
return $s;
}
function wfClientAcceptsGzip() {
global $wgUseGzip;
if( $wgUseGzip ) {
# FIXME: we may want to blacklist some broken browsers
if( preg_match(
'/\bgzip(?:;(q)=([0-9]+(?:\.[0-9]+)))?\b/',
$_SERVER["HTTP_ACCEPT_ENCODING"],
$m ) ) {
if( ( $m[1] == "q" ) && ( $m[2] == 0 ) ) return false;
wfDebug( " accepts gzip\n" );
return true;
}
}
return false;
}
# Yay, more global functions!
function wfCheckLimits( $deflimit = 50, $optionname = "rclimit" ) {
global $wgUser, $wgRequest;
$limit = $wgRequest->getInt( 'limit', 0 );
if( $limit < 0 ) $limit = 0;
if( ( $limit == 0 ) && ( $optionname != "" ) ) {
$limit = (int)$wgUser->getOption( $optionname );
}
if( $limit <= 0 ) $limit = $deflimit;
if( $limit > 5000 ) $limit = 5000; # We have *some* limits...
$offset = $wgRequest->getInt( 'offset', 0 );
if( $offset < 0 ) $offset = 0;
if( $offset > 65000 ) $offset = 65000; # do we need a max? what?
return array( $limit, $offset );
}
# Escapes the given text so that it may be output using addWikiText()
# without any linking, formatting, etc. making its way through. This
# is achieved by substituting certain characters with HTML entities.
# As required by the callers, is not used. It currently does
# not filter out characters which have special meaning only at the
# start of a line, such as "*".
function wfEscapeWikiText( $text )
{
$text = str_replace(
array( '[', '|', "'", 'ISBN ' , '://' , "\n=" ),
array( '[', '|', ''', 'ISBN ', '://' , "\n=" ),
htmlspecialchars($text) );
return $text;
}
function wfQuotedPrintable( $string, $charset = "" )
{
# Probably incomplete; see RFC 2045
if( empty( $charset ) ) {
global $wgInputEncoding;
$charset = $wgInputEncoding;
}
$charset = strtoupper( $charset );
$charset = str_replace( "ISO-8859", "ISO8859", $charset ); // ?
$illegal = '\x00-\x08\x0b\x0c\x0e-\x1f\x7f-\xff=';
$replace = $illegal . '\t ?_';
if( !preg_match( "/[$illegal]/", $string ) ) return $string;
$out = "=?$charset?Q?";
$out .= preg_replace( "/([$replace])/e", 'sprintf("=%02X",ord("$1"))', $string );
$out .= "?=";
return $out;
}
function wfTime(){
$st = explode( " ", microtime() );
return (float)$st[0] + (float)$st[1];
}
# Changes the first character to an HTML entity
function wfHtmlEscapeFirst( $text ) {
$ord = ord($text);
$newText = substr($text, 1);
return "$ord;$newText";
}
# Sets dest to source and returns the original value of dest
function wfSetVar( &$dest, $source )
{
$temp = $dest;
$dest = $source;
return $temp;
}
# Sets dest to a reference to source and returns the original dest
function &wfSetRef( &$dest, &$source )
{
$temp =& $dest;
$dest =& $source;
return $temp;
}
# This function takes two arrays as input, and returns a CGI-style string, e.g.
# "days=7&limit=100". Options in the first array override options in the second.
# Options set to "" will not be output.
function wfArrayToCGI( $array1, $array2 = NULL )
{
if ( !is_null( $array2 ) ) {
$array1 = $array1 + $array2;
}
$cgi = "";
foreach ( $array1 as $key => $value ) {
if ( "" !== $value ) {
if ( "" != $cgi ) {
$cgi .= "&";
}
$cgi .= "{$key}={$value}";
}
}
return $cgi;
}
# This is obsolete, use SquidUpdate::purge()
function wfPurgeSquidServers ($urlArr) {
SquidUpdate::purge( $urlArr );
}
# Windows-compatible version of escapeshellarg()
function wfEscapeShellArg( )
{
$args = func_get_args();
$first = true;
$retVal = "";
foreach ( $args as $arg ) {
if ( !$first ) {
$retVal .= " ";
} else {
$first = false;
}
if (substr(php_uname(), 0, 7) == "Windows") {
$retVal .= '"' . str_replace( '"','\"', $arg ) . '"';
} else {
$retVal .= escapeshellarg( $arg );
}
}
return $retVal;
}
# wfMerge attempts to merge differences between three texts.
# Returns true for a clean merge and false for failure or a conflict.
function wfMerge( $old, $mine, $yours, &$result ){
global $wgDiff3;
# This check may also protect against code injection in
# case of broken installations.
if(! file_exists( $wgDiff3 ) ){
return false;
}
# Make temporary files
$td = "/tmp/";
$oldtextFile = fopen( $oldtextName = tempnam( $td, "merge-old-" ), "w" );
$mytextFile = fopen( $mytextName = tempnam( $td, "merge-mine-" ), "w" );
$yourtextFile = fopen( $yourtextName = tempnam( $td, "merge-your-" ), "w" );
fwrite( $oldtextFile, $old ); fclose( $oldtextFile );
fwrite( $mytextFile, $mine ); fclose( $mytextFile );
fwrite( $yourtextFile, $yours ); fclose( $yourtextFile );
# Check for a conflict
$cmd = wfEscapeShellArg( $wgDiff3 ) . " -a --overlap-only " .
wfEscapeShellArg( $mytextName ) . " " .
wfEscapeShellArg( $oldtextName ) . " " .
wfEscapeShellArg( $yourtextName );
$handle = popen( $cmd, "r" );
if( fgets( $handle ) ){
$conflict = true;
} else {
$conflict = false;
}
pclose( $handle );
# Merge differences
$cmd = wfEscapeShellArg( $wgDiff3 ) . " -a -e --merge " .
wfEscapeShellArg( $mytextName, $oldtextName, $yourtextName );
$handle = popen( $cmd, "r" );
$result = "";
do {
$data = fread( $handle, 8192 );
if ( strlen( $data ) == 0 ) {
break;
}
$result .= $data;
} while ( true );
pclose( $handle );
unlink( $mytextName ); unlink( $oldtextName ); unlink( $yourtextName );
return ! $conflict;
}
function wfVarDump( $var )
{
global $wgOut;
$s = str_replace("\n","
\n", var_export( $var, true ) . "\n");
if ( headers_sent() || !@is_object( $wgOut ) ) {
print $s;
} else {
$wgOut->addHTML( $s );
}
}
# Provide a simple HTTP error.
function wfHttpError( $code, $label, $desc ) {
global $wgOut;
$wgOut->disable();
header( "HTTP/1.0 $code $label" );
header( "Status: $code $label" );
$wgOut->sendCacheControl();
# Don't send content if it's a HEAD request.
if( $_SERVER['REQUEST_METHOD'] == 'HEAD' ) {
header( "Content-type: text/plain" );
print "$desc\n";
}
}
# Converts an Accept-* header into an array mapping string values to quality factors
function wfAcceptToPrefs( $accept, $def = "*/*" ) {
# No arg means accept anything (per HTTP spec)
if( !$accept ) {
return array( $def => 1 );
}
$prefs = array();
$parts = explode( ",", $accept );
foreach( $parts as $part ) {
# FIXME: doesn't deal with params like 'text/html; level=1'
@list( $value, $qpart ) = explode( ";", $part );
if( !isset( $qpart ) ) {
$prefs[$value] = 1;
} elseif( preg_match( '/q\s*=\s*(\d*\.\d+)/', $qpart, $match ) ) {
$prefs[$value] = $match[1];
}
}
return $prefs;
}
/* private */ function mimeTypeMatch( $type, $avail ) {
if( array_key_exists($type, $avail) ) {
return $type;
} else {
$parts = explode( '/', $type );
if( array_key_exists( $parts[0] . '/*', $avail ) ) {
return $parts[0] . '/*';
} elseif( array_key_exists( '*/*', $avail ) ) {
return '*/*';
} else {
return NULL;
}
}
}
# FIXME: doesn't handle params like 'text/plain; charset=UTF-8'
# XXX: generalize to negotiate other stuff
function wfNegotiateType( $cprefs, $sprefs ) {
$combine = array();
foreach( array_keys($sprefs) as $type ) {
$parts = explode( '/', $type );
if( $parts[1] != '*' ) {
$ckey = mimeTypeMatch( $type, $cprefs );
if( $ckey ) {
$combine[$type] = $sprefs[$type] * $cprefs[$ckey];
}
}
}
foreach( array_keys( $cprefs ) as $type ) {
$parts = explode( '/', $type );
if( $parts[1] != '*' && !array_key_exists( $type, $sprefs ) ) {
$skey = mimeTypeMatch( $type, $sprefs );
if( $skey ) {
$combine[$type] = $sprefs[$skey] * $cprefs[$type];
}
}
}
$bestq = 0;
$besttype = NULL;
foreach( array_keys( $combine ) as $type ) {
if( $combine[$type] > $bestq ) {
$besttype = $type;
$bestq = $combine[$type];
}
}
return $besttype;
}
# Array lookup
# Returns an array where the values in the first array are replaced by the
# values in the second array with the corresponding keys
function wfArrayLookup( $a, $b )
{
return array_flip( array_intersect( array_flip( $a ), array_keys( $b ) ) );
}
?>