ac549401d4
* DB_WRITE now called DB_MASTER, DB_READ now called DB_SLAVE * Converted to use SQL wrapper functions instead of direct SQL in various places * Experimental method for preserving the chronological order of events when slave servers are used. Untested. * Fixes to the new post-parse existence test feature * Some.. other stuff
1057 lines
27 KiB
PHP
1057 lines
27 KiB
PHP
<?php
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# Global functions used everywhere
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$wgNumberOfArticles = -1; # Unset
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$wgTotalViews = -1;
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$wgTotalEdits = -1;
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require_once( 'DatabaseFunctions.php' );
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require_once( 'UpdateClasses.php' );
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require_once( 'LogPage.php' );
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/*
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* Compatibility functions
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*/
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# PHP <4.3.x is not actively supported; 4.1.x and 4.2.x might or might not work.
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# <4.1.x will not work, as we use a number of features introduced in 4.1.0
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# such as the new autoglobals.
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if( !function_exists('iconv') ) {
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# iconv support is not in the default configuration and so may not be present.
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# Assume will only ever use utf-8 and iso-8859-1.
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# This will *not* work in all circumstances.
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function iconv( $from, $to, $string ) {
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if(strcasecmp( $from, $to ) == 0) return $string;
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if(strcasecmp( $from, 'utf-8' ) == 0) return utf8_decode( $string );
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if(strcasecmp( $to, 'utf-8' ) == 0) return utf8_encode( $string );
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return $string;
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}
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}
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if( !function_exists('file_get_contents') ) {
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# Exists in PHP 4.3.0+
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function file_get_contents( $filename ) {
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return implode( '', file( $filename ) );
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}
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}
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if( !function_exists('is_a') ) {
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# Exists in PHP 4.2.0+
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function is_a( $object, $class_name ) {
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return
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(strcasecmp( get_class( $object ), $class_name ) == 0) ||
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is_subclass_of( $object, $class_name );
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}
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}
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# html_entity_decode exists in PHP 4.3.0+ but is FATALLY BROKEN even then,
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# with no UTF-8 support.
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function do_html_entity_decode( $string, $quote_style=ENT_COMPAT, $charset='ISO-8859-1' ) {
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static $trans;
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if( !isset( $trans ) ) {
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$trans = array_flip( get_html_translation_table( HTML_ENTITIES, $quote_style ) );
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# Assumes $charset will always be the same through a run, and only understands
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# utf-8 or default. Note - mixing latin1 named entities and unicode numbered
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# ones will result in a bad link.
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if( strcasecmp( 'utf-8', $charset ) == 0 ) {
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$trans = array_map( 'utf8_encode', $trans );
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}
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}
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return strtr( $string, $trans );
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}
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$wgRandomSeeded = false;
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# Seed Mersenne Twister
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# Only necessary in PHP < 4.2.0
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function wfSeedRandom()
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{
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global $wgRandomSeeded;
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if ( ! $wgRandomSeeded && version_compare( phpversion(), '4.2.0' ) < 0 ) {
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$seed = hexdec(substr(md5(microtime()),-8)) & 0x7fffffff;
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mt_srand( $seed );
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$wgRandomSeeded = true;
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}
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}
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# Generates a URL from a URL-encoded title and a query string
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# Title::getLocalURL() is preferred in most cases
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#
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function wfLocalUrl( $a, $q = '' )
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{
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global $wgServer, $wgScript, $wgArticlePath;
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$a = str_replace( ' ', '_', $a );
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if ( '' == $a ) {
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if( '' == $q ) {
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$a = $wgScript;
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} else {
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$a = "{$wgScript}?{$q}";
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}
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} else if ( '' == $q ) {
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$a = str_replace( "$1", $a, $wgArticlePath );
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} else if ($wgScript != '' ) {
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$a = "{$wgScript}?title={$a}&{$q}";
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} else { //XXX hackish solution for toplevel wikis
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$a = "/{$a}?{$q}";
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}
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return $a;
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}
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function wfLocalUrlE( $a, $q = '' )
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{
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return wfEscapeHTML( wfLocalUrl( $a, $q ) );
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# die( "Call to obsolete function wfLocalUrlE()" );
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}
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function wfFullUrl( $a, $q = '' ) {
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wfDebugDieBacktrace( 'Call to obsolete function wfFullUrl(); use Title::getFullURL' );
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}
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function wfFullUrlE( $a, $q = '' ) {
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wfDebugDieBacktrace( 'Call to obsolete function wfFullUrlE(); use Title::getFullUrlE' );
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}
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// orphan function wfThumbUrl( $img )
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//{
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// global $wgUploadPath;
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//
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// $nt = Title::newFromText( $img );
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// if( !$nt ) return "";
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//
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// $name = $nt->getDBkey();
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// $hash = md5( $name );
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//
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// $url = "{$wgUploadPath}/thumb/" . $hash{0} . "/" .
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// substr( $hash, 0, 2 ) . "/{$name}";
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// return wfUrlencode( $url );
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//}
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function wfImageArchiveUrl( $name )
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{
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global $wgUploadPath;
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$hash = md5( substr( $name, 15) );
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$url = "{$wgUploadPath}/archive/" . $hash{0} . "/" .
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substr( $hash, 0, 2 ) . "/{$name}";
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return wfUrlencode($url);
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}
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function wfUrlencode ( $s )
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{
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$s = urlencode( $s );
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$s = preg_replace( '/%3[Aa]/', ':', $s );
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$s = preg_replace( '/%2[Ff]/', '/', $s );
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return $s;
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}
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function wfUtf8Sequence($codepoint) {
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if($codepoint < 0x80) return chr($codepoint);
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if($codepoint < 0x800) return chr($codepoint >> 6 & 0x3f | 0xc0) .
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chr($codepoint & 0x3f | 0x80);
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if($codepoint < 0x10000) return chr($codepoint >> 12 & 0x0f | 0xe0) .
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chr($codepoint >> 6 & 0x3f | 0x80) .
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chr($codepoint & 0x3f | 0x80);
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if($codepoint < 0x100000) return chr($codepoint >> 18 & 0x07 | 0xf0) . # Double-check this
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chr($codepoint >> 12 & 0x3f | 0x80) .
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chr($codepoint >> 6 & 0x3f | 0x80) .
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chr($codepoint & 0x3f | 0x80);
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# Doesn't yet handle outside the BMP
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return "&#$codepoint;";
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}
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# Converts numeric character entities to UTF-8
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function wfMungeToUtf8($string) {
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global $wgInputEncoding; # This is debatable
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#$string = iconv($wgInputEncoding, "UTF-8", $string);
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$string = preg_replace ( '/&#([0-9]+);/e', 'wfUtf8Sequence($1)', $string );
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$string = preg_replace ( '/&#x([0-9a-f]+);/ie', 'wfUtf8Sequence(0x$1)', $string );
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# Should also do named entities here
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return $string;
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}
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# Converts a single UTF-8 character into the corresponding HTML character entity
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function wfUtf8Entity( $matches ) {
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$char = $matches[0];
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# Find the length
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$z = ord( $char{0} );
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if ( $z & 0x80 ) {
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$length = 0;
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while ( $z & 0x80 ) {
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$length++;
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$z <<= 1;
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}
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} else {
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$length = 1;
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}
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if ( $length != strlen( $char ) ) {
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return '';
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}
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if ( $length == 1 ) {
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return $char;
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}
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# Mask off the length-determining bits and shift back to the original location
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$z &= 0xff;
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$z >>= $length;
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# Add in the free bits from subsequent bytes
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for ( $i=1; $i<$length; $i++ ) {
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$z <<= 6;
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$z |= ord( $char{$i} ) & 0x3f;
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}
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# Make entity
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return "&#$z;";
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}
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# Converts all multi-byte characters in a UTF-8 string into the appropriate character entity
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function wfUtf8ToHTML($string) {
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return preg_replace_callback( '/[\\xc0-\\xfd][\\x80-\\xbf]*/', 'wfUtf8Entity', $string );
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}
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function wfDebug( $text, $logonly = false )
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{
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global $wgOut, $wgDebugLogFile, $wgDebugComments, $wgProfileOnly;
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if ( isset( $wgOut ) && $wgDebugComments && !$logonly ) {
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$wgOut->debug( $text );
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}
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if ( "" != $wgDebugLogFile && !$wgProfileOnly ) {
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error_log( $text, 3, $wgDebugLogFile );
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}
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}
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# Log for database errors
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function wfLogDBError( $text ) {
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global $wgDBerrorLog;
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if ( $wgDBerrorLog ) {
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$text = date("D M j G:i:s T Y") . "\t$text";
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error_log( $text, 3, $wgDBerrorLog );
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}
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}
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function logProfilingData()
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{
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global $wgRequestTime, $wgDebugLogFile;
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global $wgProfiling, $wgProfileStack, $wgProfileLimit, $wgUser;
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$now = wfTime();
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list( $usec, $sec ) = explode( " ", $wgRequestTime );
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$start = (float)$sec + (float)$usec;
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$elapsed = $now - $start;
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if ( $wgProfiling ) {
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$prof = wfGetProfilingOutput( $start, $elapsed );
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$forward = '';
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if( !empty( $_SERVER['HTTP_X_FORWARDED_FOR'] ) )
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$forward = ' forwarded for ' . $_SERVER['HTTP_X_FORWARDED_FOR'];
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if( !empty( $_SERVER['HTTP_CLIENT_IP'] ) )
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$forward .= ' client IP ' . $_SERVER['HTTP_CLIENT_IP'];
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if( !empty( $_SERVER['HTTP_FROM'] ) )
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$forward .= ' from ' . $_SERVER['HTTP_FROM'];
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if( $forward )
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$forward = "\t(proxied via {$_SERVER['REMOTE_ADDR']}{$forward})";
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if($wgUser->getId() == 0)
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$forward .= ' anon';
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$log = sprintf( "%s\t%04.3f\t%s\n",
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gmdate( 'YmdHis' ), $elapsed,
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urldecode( $_SERVER['REQUEST_URI'] . $forward ) );
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if ( '' != $wgDebugLogFile ) {
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error_log( $log . $prof, 3, $wgDebugLogFile );
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}
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}
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}
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function wfReadOnly()
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{
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global $wgReadOnlyFile;
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if ( "" == $wgReadOnlyFile ) { return false; }
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return is_file( $wgReadOnlyFile );
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}
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$wgReplacementKeys = array( "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", "$9" );
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# Get a message from anywhere
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function wfMsg( $key ) {
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$args = func_get_args();
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if ( count( $args ) ) {
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array_shift( $args );
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}
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return wfMsgReal( $key, $args, true );
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}
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# Get a message from the language file
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function wfMsgNoDB( $key ) {
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$args = func_get_args();
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if ( count( $args ) ) {
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array_shift( $args );
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}
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return wfMsgReal( $key, $args, false );
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}
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# Really get a message
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function wfMsgReal( $key, $args, $useDB ) {
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global $wgReplacementKeys, $wgMessageCache, $wgLang;
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$fname = 'wfMsg';
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wfProfileIn( $fname );
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if ( $wgMessageCache ) {
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$message = $wgMessageCache->get( $key, $useDB );
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} elseif ( $wgLang ) {
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$message = $wgLang->getMessage( $key );
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} else {
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wfDebug( "No language object when getting $key\n" );
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$message = "<$key>";
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}
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# Replace arguments
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if( count( $args ) ) {
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$message = str_replace( $wgReplacementKeys, $args, $message );
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}
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wfProfileOut( $fname );
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return $message;
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}
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function wfCleanFormFields( $fields )
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{
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wfDebugDieBacktrace( 'Call to obsolete wfCleanFormFields(). Use wgRequest instead...' );
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}
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function wfMungeQuotes( $in )
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{
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$out = str_replace( '%', '%25', $in );
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$out = str_replace( "'", '%27', $out );
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$out = str_replace( '"', '%22', $out );
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return $out;
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}
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function wfDemungeQuotes( $in )
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{
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$out = str_replace( '%22', '"', $in );
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$out = str_replace( '%27', "'", $out );
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$out = str_replace( '%25', '%', $out );
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return $out;
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}
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function wfCleanQueryVar( $var )
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{
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wfDebugDieBacktrace( 'Call to obsolete function wfCleanQueryVar(); use wgRequest instead' );
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}
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function wfSearch( $s )
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{
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$se = new SearchEngine( $s );
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$se->showResults();
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}
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function wfGo( $s )
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{ # pick the nearest match
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$se = new SearchEngine( $s );
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$se->goResult();
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}
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# Just like exit() but makes a note of it.
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function wfAbruptExit(){
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static $called = false;
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if ( $called ){
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exit();
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}
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$called = true;
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if( function_exists( 'debug_backtrace' ) ){ // PHP >= 4.3
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$bt = debug_backtrace();
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for($i = 0; $i < count($bt) ; $i++){
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$file = $bt[$i]['file'];
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$line = $bt[$i]['line'];
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wfDebug("WARNING: Abrupt exit in $file at line $line\n");
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}
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} else {
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wfDebug('WARNING: Abrupt exit\n');
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}
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exit();
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}
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function wfDebugDieBacktrace( $msg = '' ) {
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global $wgCommandLineMode;
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if ( function_exists( 'debug_backtrace' ) ) {
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if ( $wgCommandLineMode ) {
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$msg .= "\nBacktrace:\n";
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} else {
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$msg .= "\n<p>Backtrace:</p>\n<ul>\n";
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}
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$backtrace = debug_backtrace();
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foreach( $backtrace as $call ) {
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$f = explode( DIRECTORY_SEPARATOR, $call['file'] );
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$file = $f[count($f)-1];
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if ( $wgCommandLineMode ) {
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$msg .= "$file line {$call['line']} calls ";
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} else {
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$msg .= '<li>' . $file . " line " . $call['line'] . ' calls ';
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}
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if( !empty( $call['class'] ) ) $msg .= $call['class'] . '::';
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$msg .= $call['function'] . "()";
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if ( $wgCommandLineMode ) {
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$msg .= "\n";
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} else {
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$msg .= "</li>\n";
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}
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}
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}
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die( $msg );
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}
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function wfNumberOfArticles()
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{
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global $wgNumberOfArticles;
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wfLoadSiteStats();
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return $wgNumberOfArticles;
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}
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/* private */ function wfLoadSiteStats()
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{
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global $wgNumberOfArticles, $wgTotalViews, $wgTotalEdits;
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$fname = 'wfLoadSiteStats';
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if ( -1 != $wgNumberOfArticles ) return;
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$dbr =& wfGetDB( DB_SLAVE );
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$s = $dbr->getArray( 'site_stats',
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array( 'ss_total_views', 'ss_total_edits', 'ss_good_articles' ),
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array( 'ss_row_id' => 1 ), $fname
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);
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if ( $s === false ) {
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return;
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} else {
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$wgTotalViews = $s->ss_total_views;
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$wgTotalEdits = $s->ss_total_edits;
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$wgNumberOfArticles = $s->ss_good_articles;
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}
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}
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|
|
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function wfEscapeHTML( $in )
|
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{
|
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return str_replace(
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array( '&', '"', '>', '<' ),
|
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array( '&', '"', '>', '<' ),
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$in );
|
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}
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|
|
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function wfEscapeHTMLTagsOnly( $in ) {
|
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return str_replace(
|
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array( '"', '>', '<' ),
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array( '"', '>', '<' ),
|
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$in );
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}
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|
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function wfUnescapeHTML( $in )
|
|
{
|
|
$in = str_replace( '<', '<', $in );
|
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$in = str_replace( '>', '>', $in );
|
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$in = str_replace( '"', '"', $in );
|
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$in = str_replace( '&', '&', $in );
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return $in;
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}
|
|
|
|
function wfImageDir( $fname )
|
|
{
|
|
global $wgUploadDirectory;
|
|
|
|
$hash = md5( $fname );
|
|
$oldumask = umask(0);
|
|
$dest = $wgUploadDirectory . '/' . $hash{0};
|
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if ( ! is_dir( $dest ) ) { mkdir( $dest, 0777 ); }
|
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$dest .= '/' . substr( $hash, 0, 2 );
|
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if ( ! is_dir( $dest ) ) { mkdir( $dest, 0777 ); }
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|
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umask( $oldumask );
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return $dest;
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}
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|
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function wfImageThumbDir( $fname , $subdir='thumb')
|
|
{
|
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return wfImageArchiveDir( $fname, $subdir );
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|
}
|
|
|
|
function wfImageArchiveDir( $fname , $subdir='archive')
|
|
{
|
|
global $wgUploadDirectory;
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|
|
|
$hash = md5( $fname );
|
|
$oldumask = umask(0);
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|
|
# Suppress warning messages here; if the file itself can't
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# be written we'll worry about it then.
|
|
$archive = "{$wgUploadDirectory}/{$subdir}";
|
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if ( ! is_dir( $archive ) ) { @mkdir( $archive, 0777 ); }
|
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$archive .= '/' . $hash{0};
|
|
if ( ! is_dir( $archive ) ) { @mkdir( $archive, 0777 ); }
|
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$archive .= '/' . substr( $hash, 0, 2 );
|
|
if ( ! is_dir( $archive ) ) { @mkdir( $archive, 0777 ); }
|
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|
|
umask( $oldumask );
|
|
return $archive;
|
|
}
|
|
|
|
function wfRecordUpload( $name, $oldver, $size, $desc, $copyStatus = "", $source = "" )
|
|
{
|
|
global $wgUser, $wgLang, $wgTitle, $wgOut, $wgDeferredUpdateList;
|
|
global $wgUseCopyrightUpload;
|
|
|
|
$fname = 'wfRecordUpload';
|
|
$dbw =& wfGetDB( DB_MASTER );
|
|
|
|
# img_name must be unique
|
|
if ( !$dbw->indexUnique( 'image', 'img_name' ) ) {
|
|
wfDebugDieBacktrace( 'Database schema not up to date, please run maintenance/archives/patch-img_name_unique.sql' );
|
|
}
|
|
|
|
|
|
$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 );
|
|
|
|
# Test to see if the row exists using INSERT IGNORE
|
|
# This avoids race conditions by locking the row until the commit, and also
|
|
# doesn't deadlock. SELECT FOR UPDATE causes a deadlock for every race condition.
|
|
$dbw->insert( 'image',
|
|
array(
|
|
'img_name' => $name,
|
|
'img_size'=> $size,
|
|
'img_timestamp' => $now,
|
|
'img_description' => $desc,
|
|
'img_user' => $wgUser->getID(),
|
|
'img_user_text' => $wgUser->getName(),
|
|
), $fname, 'IGNORE'
|
|
);
|
|
$descTitle = Title::makeTitle( NS_IMAGE, $name );
|
|
|
|
if ( $dbw->affectedRows() ) {
|
|
# Successfully inserted, this is a new image
|
|
$id = $descTitle->getArticleID();
|
|
|
|
if ( $id == 0 ) {
|
|
$seqVal = $dbw->nextSequenceValue( 'cur_cur_id_seq' );
|
|
$dbw->insertArray( 'cur',
|
|
array(
|
|
'cur_id' => $seqVal,
|
|
'cur_namespace' => NS_IMAGE,
|
|
'cur_title' => $name,
|
|
'cur_comment' => $desc,
|
|
'cur_user' => $wgUser->getID(),
|
|
'cur_user_text' => $wgUser->getName(),
|
|
'cur_timestamp' => $now,
|
|
'cur_is_new' => 1,
|
|
'cur_text' => $textdesc,
|
|
'inverse_timestamp' => $won,
|
|
'cur_touched' => $now
|
|
), $fname
|
|
);
|
|
$id = $dbw->insertId() or 0; # We should throw an error instead
|
|
|
|
RecentChange::notifyNew( $now, $descTitle, 0, $wgUser, $desc );
|
|
|
|
$u = new SearchUpdate( $id, $name, $desc );
|
|
$u->doUpdate();
|
|
}
|
|
} else {
|
|
# Collision, this is an update of an image
|
|
# Get current image row for update
|
|
$s = $dbw->getArray( 'image', array( 'img_name','img_size','img_timestamp','img_description',
|
|
'img_user','img_user_text' ), array( 'img_name' => $name ), $fname, 'FOR UPDATE' );
|
|
|
|
# Insert it into oldimage
|
|
$dbw->insertArray( 'oldimage',
|
|
array(
|
|
'oi_name' => $s->img_name,
|
|
'oi_archive_name' => $oldver,
|
|
'oi_size' => $s->img_size,
|
|
'oi_timestamp' => $s->img_timestamp,
|
|
'oi_description' => $s->img_description,
|
|
'oi_user' => $s->img_user,
|
|
'oi_user_text' => $s->img_user_text
|
|
), $fname
|
|
);
|
|
|
|
# Update the current image row
|
|
$dbw->updateArray( 'image',
|
|
array( /* SET */
|
|
'img_size' => $size,
|
|
'img_timestamp' => wfTimestampNow(),
|
|
'img_user' => $wgUser->getID(),
|
|
'img_user_text' => $wgUser->getName(),
|
|
'img_description' => $desc,
|
|
), array( /* WHERE */
|
|
'img_name' => $name
|
|
), $fname
|
|
);
|
|
|
|
# Invalidate the cache for the description page
|
|
$descTitle->invalidateCache();
|
|
}
|
|
|
|
$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 = '<a href="' . wfLocalUrlE( $link, $q ) . "\">{$prev}</a>";
|
|
} else { $plink = $prev; }
|
|
|
|
$no = $offset + $limit;
|
|
$q = "limit={$limit}&offset={$no}";
|
|
if ( "" != $query ) { $q .= "&{$query}"; }
|
|
|
|
if ( $atend ) {
|
|
$nlink = $next;
|
|
} else {
|
|
$nlink = '<a href="' . wfLocalUrlE( $link, $q ) . "\">{$next}</a>";
|
|
}
|
|
$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 = '<a href="' . wfLocalUrlE( $link, $q ) . "\">{$fmtLimit}</a>";
|
|
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, <nowiki> 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
|
|
# If source is NULL, it just returns the value, it doesn't set the variable
|
|
function wfSetVar( &$dest, $source )
|
|
{
|
|
$temp = $dest;
|
|
if ( !is_null( $source ) ) {
|
|
$dest = $source;
|
|
}
|
|
return $temp;
|
|
}
|
|
|
|
# Sets dest to a reference to source and returns the original dest
|
|
# Pity that doesn't work in PHP
|
|
function &wfSetRef( &$dest, &$source )
|
|
{
|
|
die( "You can't rebind a variable in the caller's scope" );
|
|
}
|
|
|
|
# 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 ( wfIsWindows() ) {
|
|
$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","<br>\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 ) ) );
|
|
}
|
|
|
|
# Since Windows is so different to any of the other popular OSes, it seems appropriate
|
|
# to have a simple way to test for its presence
|
|
function wfIsWindows() {
|
|
if (substr(php_uname(), 0, 7) == 'Windows') {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
# Ideally we'd be using actual time fields in the db
|
|
function wfTimestamp2Unix( $ts ) {
|
|
return gmmktime( ( (int)substr( $ts, 8, 2) ),
|
|
(int)substr( $ts, 10, 2 ), (int)substr( $ts, 12, 2 ),
|
|
(int)substr( $ts, 4, 2 ), (int)substr( $ts, 6, 2 ),
|
|
(int)substr( $ts, 0, 4 ) );
|
|
}
|
|
|
|
function wfUnix2Timestamp( $unixtime ) {
|
|
return gmdate( "YmdHis", $unixtime );
|
|
}
|
|
|
|
function wfTimestampNow() {
|
|
# return NOW
|
|
return gmdate( "YmdHis" );
|
|
}
|
|
|
|
# Sorting hack for MySQL 3, which doesn't use index sorts for DESC
|
|
function wfInvertTimestamp( $ts ) {
|
|
return strtr(
|
|
$ts,
|
|
"0123456789",
|
|
"9876543210"
|
|
);
|
|
}
|
|
|
|
# Reference-counted warning suppression
|
|
function wfSuppressWarnings( $end = false ) {
|
|
static $suppressCount = 0;
|
|
static $originalLevel = false;
|
|
|
|
if ( $end ) {
|
|
if ( $suppressCount ) {
|
|
$suppressCount --;
|
|
if ( !$suppressCount ) {
|
|
error_reporting( $originalLevel );
|
|
}
|
|
}
|
|
} else {
|
|
if ( !$suppressCount ) {
|
|
$originalLevel = error_reporting( E_ALL & ~( E_WARNING | E_NOTICE ) );
|
|
}
|
|
$suppressCount++;
|
|
}
|
|
}
|
|
|
|
# Restore error level to previous value
|
|
function wfRestoreWarnings() {
|
|
wfSuppressWarnings( true );
|
|
}
|
|
|
|
?>
|