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Diffstat (limited to 'includes/Parser_OldPP.php')
| -rw-r--r-- | includes/Parser_OldPP.php | 4942 |
1 files changed, 4942 insertions, 0 deletions
diff --git a/includes/Parser_OldPP.php b/includes/Parser_OldPP.php new file mode 100644 index 00000000..c10de257 --- /dev/null +++ b/includes/Parser_OldPP.php @@ -0,0 +1,4942 @@ +<?php +/** + * Parser with old preprocessor + */ +class Parser_OldPP +{ + /** + * Update this version number when the ParserOutput format + * changes in an incompatible way, so the parser cache + * can automatically discard old data. + */ + const VERSION = '1.6.4'; + + # Flags for Parser::setFunctionHook + # Also available as global constants from Defines.php + const SFH_NO_HASH = 1; + + # Constants needed for external link processing + # Everything except bracket, space, or control characters + const EXT_LINK_URL_CLASS = '[^][<>"\\x00-\\x20\\x7F]'; + const EXT_IMAGE_REGEX = '/^(http:\/\/|https:\/\/)([^][<>"\\x00-\\x20\\x7F]+)\\/([A-Za-z0-9_.,~%\\-+&;#*?!=()@\\x80-\\xFF]+)\\.((?i)gif|png|jpg|jpeg)$/S'; + + // State constants for the definition list colon extraction + const COLON_STATE_TEXT = 0; + const COLON_STATE_TAG = 1; + const COLON_STATE_TAGSTART = 2; + const COLON_STATE_CLOSETAG = 3; + const COLON_STATE_TAGSLASH = 4; + const COLON_STATE_COMMENT = 5; + const COLON_STATE_COMMENTDASH = 6; + const COLON_STATE_COMMENTDASHDASH = 7; + + // Allowed values for $this->mOutputType + // Parameter to startExternalParse(). + const OT_HTML = 1; + const OT_WIKI = 2; + const OT_PREPROCESS = 3; + const OT_MSG = 4; + + /**#@+ + * @private + */ + # Persistent: + var $mTagHooks, $mTransparentTagHooks, $mFunctionHooks, $mFunctionSynonyms, $mVariables, + $mImageParams, $mImageParamsMagicArray, $mExtLinkBracketedRegex; + + # Cleared with clearState(): + var $mOutput, $mAutonumber, $mDTopen, $mStripState; + var $mIncludeCount, $mArgStack, $mLastSection, $mInPre; + var $mInterwikiLinkHolders, $mLinkHolders, $mUniqPrefix; + var $mIncludeSizes, $mDefaultSort; + var $mTemplates, // cache of already loaded templates, avoids + // multiple SQL queries for the same string + $mTemplatePath; // stores an unsorted hash of all the templates already loaded + // in this path. Used for loop detection. + + # Temporary + # These are variables reset at least once per parse regardless of $clearState + var $mOptions, // ParserOptions object + $mTitle, // Title context, used for self-link rendering and similar things + $mOutputType, // Output type, one of the OT_xxx constants + $ot, // Shortcut alias, see setOutputType() + $mRevisionId, // ID to display in {{REVISIONID}} tags + $mRevisionTimestamp, // The timestamp of the specified revision ID + $mRevIdForTs; // The revision ID which was used to fetch the timestamp + + /**#@-*/ + + /** + * Constructor + * + * @public + */ + function __construct( $conf = array() ) { + $this->mTagHooks = array(); + $this->mTransparentTagHooks = array(); + $this->mFunctionHooks = array(); + $this->mFunctionSynonyms = array( 0 => array(), 1 => array() ); + $this->mFirstCall = true; + $this->mExtLinkBracketedRegex = '/\[(\b(' . wfUrlProtocols() . ')'. + '[^][<>"\\x00-\\x20\\x7F]+) *([^\]\\x0a\\x0d]*?)\]/S'; + } + + /** + * Do various kinds of initialisation on the first call of the parser + */ + function firstCallInit() { + if ( !$this->mFirstCall ) { + return; + } + $this->mFirstCall = false; + + wfProfileIn( __METHOD__ ); + global $wgAllowDisplayTitle, $wgAllowSlowParserFunctions; + + $this->setHook( 'pre', array( $this, 'renderPreTag' ) ); + + # Syntax for arguments (see self::setFunctionHook): + # "name for lookup in localized magic words array", + # function callback, + # optional SFH_NO_HASH to omit the hash from calls (e.g. {{int:...} + # instead of {{#int:...}}) + $this->setFunctionHook( 'int', array( 'CoreParserFunctions', 'intFunction' ), SFH_NO_HASH ); + $this->setFunctionHook( 'ns', array( 'CoreParserFunctions', 'ns' ), SFH_NO_HASH ); + $this->setFunctionHook( 'urlencode', array( 'CoreParserFunctions', 'urlencode' ), SFH_NO_HASH ); + $this->setFunctionHook( 'lcfirst', array( 'CoreParserFunctions', 'lcfirst' ), SFH_NO_HASH ); + $this->setFunctionHook( 'ucfirst', array( 'CoreParserFunctions', 'ucfirst' ), SFH_NO_HASH ); + $this->setFunctionHook( 'lc', array( 'CoreParserFunctions', 'lc' ), SFH_NO_HASH ); + $this->setFunctionHook( 'uc', array( 'CoreParserFunctions', 'uc' ), SFH_NO_HASH ); + $this->setFunctionHook( 'localurl', array( 'CoreParserFunctions', 'localurl' ), SFH_NO_HASH ); + $this->setFunctionHook( 'localurle', array( 'CoreParserFunctions', 'localurle' ), SFH_NO_HASH ); + $this->setFunctionHook( 'fullurl', array( 'CoreParserFunctions', 'fullurl' ), SFH_NO_HASH ); + $this->setFunctionHook( 'fullurle', array( 'CoreParserFunctions', 'fullurle' ), SFH_NO_HASH ); + $this->setFunctionHook( 'formatnum', array( 'CoreParserFunctions', 'formatnum' ), SFH_NO_HASH ); + $this->setFunctionHook( 'grammar', array( 'CoreParserFunctions', 'grammar' ), SFH_NO_HASH ); + $this->setFunctionHook( 'plural', array( 'CoreParserFunctions', 'plural' ), SFH_NO_HASH ); + $this->setFunctionHook( 'numberofpages', array( 'CoreParserFunctions', 'numberofpages' ), SFH_NO_HASH ); + $this->setFunctionHook( 'numberofusers', array( 'CoreParserFunctions', 'numberofusers' ), SFH_NO_HASH ); + $this->setFunctionHook( 'numberofarticles', array( 'CoreParserFunctions', 'numberofarticles' ), SFH_NO_HASH ); + $this->setFunctionHook( 'numberoffiles', array( 'CoreParserFunctions', 'numberoffiles' ), SFH_NO_HASH ); + $this->setFunctionHook( 'numberofadmins', array( 'CoreParserFunctions', 'numberofadmins' ), SFH_NO_HASH ); + $this->setFunctionHook( 'numberofedits', array( 'CoreParserFunctions', 'numberofedits' ), SFH_NO_HASH ); + $this->setFunctionHook( 'language', array( 'CoreParserFunctions', 'language' ), SFH_NO_HASH ); + $this->setFunctionHook( 'padleft', array( 'CoreParserFunctions', 'padleft' ), SFH_NO_HASH ); + $this->setFunctionHook( 'padright', array( 'CoreParserFunctions', 'padright' ), SFH_NO_HASH ); + $this->setFunctionHook( 'anchorencode', array( 'CoreParserFunctions', 'anchorencode' ), SFH_NO_HASH ); + $this->setFunctionHook( 'special', array( 'CoreParserFunctions', 'special' ) ); + $this->setFunctionHook( 'defaultsort', array( 'CoreParserFunctions', 'defaultsort' ), SFH_NO_HASH ); + $this->setFunctionHook( 'filepath', array( 'CoreParserFunctions', 'filepath' ), SFH_NO_HASH ); + + if ( $wgAllowDisplayTitle ) { + $this->setFunctionHook( 'displaytitle', array( 'CoreParserFunctions', 'displaytitle' ), SFH_NO_HASH ); + } + if ( $wgAllowSlowParserFunctions ) { + $this->setFunctionHook( 'pagesinnamespace', array( 'CoreParserFunctions', 'pagesinnamespace' ), SFH_NO_HASH ); + } + + $this->initialiseVariables(); + + wfRunHooks( 'ParserFirstCallInit', array( &$this ) ); + wfProfileOut( __METHOD__ ); + } + + /** + * Clear Parser state + * + * @private + */ + function clearState() { + wfProfileIn( __METHOD__ ); + if ( $this->mFirstCall ) { + $this->firstCallInit(); + } + $this->mOutput = new ParserOutput; + $this->mAutonumber = 0; + $this->mLastSection = ''; + $this->mDTopen = false; + $this->mIncludeCount = array(); + $this->mStripState = new StripState; + $this->mArgStack = array(); + $this->mInPre = false; + $this->mInterwikiLinkHolders = array( + 'texts' => array(), + 'titles' => array() + ); + $this->mLinkHolders = array( + 'namespaces' => array(), + 'dbkeys' => array(), + 'queries' => array(), + 'texts' => array(), + 'titles' => array() + ); + $this->mRevisionTimestamp = $this->mRevisionId = null; + + /** + * Prefix for temporary replacement strings for the multipass parser. + * \x07 should never appear in input as it's disallowed in XML. + * Using it at the front also gives us a little extra robustness + * since it shouldn't match when butted up against identifier-like + * string constructs. + */ + $this->mUniqPrefix = "\x07UNIQ" . self::getRandomString(); + + # Clear these on every parse, bug 4549 + $this->mTemplates = array(); + $this->mTemplatePath = array(); + + $this->mShowToc = true; + $this->mForceTocPosition = false; + $this->mIncludeSizes = array( + 'pre-expand' => 0, + 'post-expand' => 0, + 'arg' => 0 + ); + $this->mDefaultSort = false; + + wfRunHooks( 'ParserClearState', array( &$this ) ); + wfProfileOut( __METHOD__ ); + } + + function setOutputType( $ot ) { + $this->mOutputType = $ot; + // Shortcut alias + $this->ot = array( + 'html' => $ot == self::OT_HTML, + 'wiki' => $ot == self::OT_WIKI, + 'msg' => $ot == self::OT_MSG, + 'pre' => $ot == self::OT_PREPROCESS, + ); + } + + /** + * Accessor for mUniqPrefix. + * + * @public + */ + function uniqPrefix() { + return $this->mUniqPrefix; + } + + /** + * Convert wikitext to HTML + * Do not call this function recursively. + * + * @param string $text Text we want to parse + * @param Title &$title A title object + * @param array $options + * @param boolean $linestart + * @param boolean $clearState + * @param int $revid number to pass in {{REVISIONID}} + * @return ParserOutput a ParserOutput + */ + public function parse( $text, &$title, $options, $linestart = true, $clearState = true, $revid = null ) { + /** + * First pass--just handle <nowiki> sections, pass the rest off + * to internalParse() which does all the real work. + */ + + global $wgUseTidy, $wgAlwaysUseTidy, $wgContLang; + $fname = 'Parser::parse-' . wfGetCaller(); + wfProfileIn( __METHOD__ ); + wfProfileIn( $fname ); + + if ( $clearState ) { + $this->clearState(); + } + + $this->mOptions = $options; + $this->mTitle =& $title; + $oldRevisionId = $this->mRevisionId; + $oldRevisionTimestamp = $this->mRevisionTimestamp; + if( $revid !== null ) { + $this->mRevisionId = $revid; + $this->mRevisionTimestamp = null; + } + $this->setOutputType( self::OT_HTML ); + wfRunHooks( 'ParserBeforeStrip', array( &$this, &$text, &$this->mStripState ) ); + $text = $this->strip( $text, $this->mStripState ); + wfRunHooks( 'ParserAfterStrip', array( &$this, &$text, &$this->mStripState ) ); + $text = $this->internalParse( $text ); + $text = $this->mStripState->unstripGeneral( $text ); + + # Clean up special characters, only run once, next-to-last before doBlockLevels + $fixtags = array( + # french spaces, last one Guillemet-left + # only if there is something before the space + '/(.) (?=\\?|:|;|!|%|\\302\\273)/' => '\\1 \\2', + # french spaces, Guillemet-right + '/(\\302\\253) /' => '\\1 ', + ); + $text = preg_replace( array_keys($fixtags), array_values($fixtags), $text ); + + # only once and last + $text = $this->doBlockLevels( $text, $linestart ); + + $this->replaceLinkHolders( $text ); + + # the position of the parserConvert() call should not be changed. it + # assumes that the links are all replaced and the only thing left + # is the <nowiki> mark. + # Side-effects: this calls $this->mOutput->setTitleText() + $text = $wgContLang->parserConvert( $text, $this ); + + $text = $this->mStripState->unstripNoWiki( $text ); + + wfRunHooks( 'ParserBeforeTidy', array( &$this, &$text ) ); + +//!JF Move to its own function + + $uniq_prefix = $this->mUniqPrefix; + $matches = array(); + $elements = array_keys( $this->mTransparentTagHooks ); + $text = self::extractTagsAndParams( $elements, $text, $matches, $uniq_prefix ); + + foreach( $matches as $marker => $data ) { + list( $element, $content, $params, $tag ) = $data; + $tagName = strtolower( $element ); + if( isset( $this->mTransparentTagHooks[$tagName] ) ) { + $output = call_user_func_array( $this->mTransparentTagHooks[$tagName], + array( $content, $params, $this ) ); + } else { + $output = $tag; + } + $this->mStripState->general->setPair( $marker, $output ); + } + $text = $this->mStripState->unstripGeneral( $text ); + + $text = Sanitizer::normalizeCharReferences( $text ); + + if (($wgUseTidy and $this->mOptions->mTidy) or $wgAlwaysUseTidy) { + $text = self::tidy($text); + } else { + # attempt to sanitize at least some nesting problems + # (bug #2702 and quite a few others) + $tidyregs = array( + # ''Something [http://www.cool.com cool''] --> + # <i>Something</i><a href="http://www.cool.com"..><i>cool></i></a> + '/(<([bi])>)(<([bi])>)?([^<]*)(<\/?a[^<]*>)([^<]*)(<\/\\4>)?(<\/\\2>)/' => + '\\1\\3\\5\\8\\9\\6\\1\\3\\7\\8\\9', + # fix up an anchor inside another anchor, only + # at least for a single single nested link (bug 3695) + '/(<a[^>]+>)([^<]*)(<a[^>]+>[^<]*)<\/a>(.*)<\/a>/' => + '\\1\\2</a>\\3</a>\\1\\4</a>', + # fix div inside inline elements- doBlockLevels won't wrap a line which + # contains a div, so fix it up here; replace + # div with escaped text + '/(<([aib]) [^>]+>)([^<]*)(<div([^>]*)>)(.*)(<\/div>)([^<]*)(<\/\\2>)/' => + '\\1\\3<div\\5>\\6</div>\\8\\9', + # remove empty italic or bold tag pairs, some + # introduced by rules above + '/<([bi])><\/\\1>/' => '', + ); + + $text = preg_replace( + array_keys( $tidyregs ), + array_values( $tidyregs ), + $text ); + } + + wfRunHooks( 'ParserAfterTidy', array( &$this, &$text ) ); + + # Information on include size limits, for the benefit of users who try to skirt them + if ( $this->mOptions->getEnableLimitReport() ) { + $max = $this->mOptions->getMaxIncludeSize(); + $limitReport = + "Pre-expand include size: {$this->mIncludeSizes['pre-expand']}/$max bytes\n" . + "Post-expand include size: {$this->mIncludeSizes['post-expand']}/$max bytes\n" . + "Template argument size: {$this->mIncludeSizes['arg']}/$max bytes\n"; + wfRunHooks( 'ParserLimitReport', array( $this, &$limitReport ) ); + $text .= "<!-- \n$limitReport-->\n"; + } + $this->mOutput->setText( $text ); + $this->mRevisionId = $oldRevisionId; + $this->mRevisionTimestamp = $oldRevisionTimestamp; + wfProfileOut( $fname ); + wfProfileOut( __METHOD__ ); + + return $this->mOutput; + } + + /** + * Recursive parser entry point that can be called from an extension tag + * hook. + */ + function recursiveTagParse( $text ) { + wfProfileIn( __METHOD__ ); + wfRunHooks( 'ParserBeforeStrip', array( &$this, &$text, &$this->mStripState ) ); + $text = $this->strip( $text, $this->mStripState ); + wfRunHooks( 'ParserAfterStrip', array( &$this, &$text, &$this->mStripState ) ); + $text = $this->internalParse( $text ); + wfProfileOut( __METHOD__ ); + return $text; + } + + /** + * Expand templates and variables in the text, producing valid, static wikitext. + * Also removes comments. + */ + function preprocess( $text, $title, $options, $revid = null ) { + wfProfileIn( __METHOD__ ); + $this->clearState(); + $this->setOutputType( self::OT_PREPROCESS ); + $this->mOptions = $options; + $this->mTitle = $title; + if( $revid !== null ) { + $this->mRevisionId = $revid; + } + wfRunHooks( 'ParserBeforeStrip', array( &$this, &$text, &$this->mStripState ) ); + $text = $this->strip( $text, $this->mStripState ); + wfRunHooks( 'ParserAfterStrip', array( &$this, &$text, &$this->mStripState ) ); + if ( $this->mOptions->getRemoveComments() ) { + $text = Sanitizer::removeHTMLcomments( $text ); + } + $text = $this->replaceVariables( $text ); + $text = $this->mStripState->unstripBoth( $text ); + wfProfileOut( __METHOD__ ); + return $text; + } + + /** + * Get a random string + * + * @private + * @static + */ + function getRandomString() { + return dechex(mt_rand(0, 0x7fffffff)) . dechex(mt_rand(0, 0x7fffffff)); + } + + function &getTitle() { return $this->mTitle; } + function getOptions() { return $this->mOptions; } + + function getFunctionLang() { + global $wgLang, $wgContLang; + return $this->mOptions->getInterfaceMessage() ? $wgLang : $wgContLang; + } + + /** + * Replaces all occurrences of HTML-style comments and the given tags + * in the text with a random marker and returns teh next text. The output + * parameter $matches will be an associative array filled with data in + * the form: + * 'UNIQ-xxxxx' => array( + * 'element', + * 'tag content', + * array( 'param' => 'x' ), + * '<element param="x">tag content</element>' ) ) + * + * @param $elements list of element names. Comments are always extracted. + * @param $text Source text string. + * @param $uniq_prefix + * + * @public + * @static + */ + function extractTagsAndParams($elements, $text, &$matches, $uniq_prefix = ''){ + static $n = 1; + $stripped = ''; + $matches = array(); + + $taglist = implode( '|', $elements ); + $start = "/<($taglist)(\\s+[^>]*?|\\s*?)(\/?>)|<(!--)/i"; + + while ( '' != $text ) { + $p = preg_split( $start, $text, 2, PREG_SPLIT_DELIM_CAPTURE ); + $stripped .= $p[0]; + if( count( $p ) < 5 ) { + break; + } + if( count( $p ) > 5 ) { + // comment + $element = $p[4]; + $attributes = ''; + $close = ''; + $inside = $p[5]; + } else { + // tag + $element = $p[1]; + $attributes = $p[2]; + $close = $p[3]; + $inside = $p[4]; + } + + $marker = "$uniq_prefix-$element-" . sprintf('%08X', $n++) . "-QINU\x07"; + $stripped .= $marker; + + if ( $close === '/>' ) { + // Empty element tag, <tag /> + $content = null; + $text = $inside; + $tail = null; + } else { + if( $element == '!--' ) { + $end = '/(-->)/'; + } else { + $end = "/(<\\/$element\\s*>)/i"; + } + $q = preg_split( $end, $inside, 2, PREG_SPLIT_DELIM_CAPTURE ); + $content = $q[0]; + if( count( $q ) < 3 ) { + # No end tag -- let it run out to the end of the text. + $tail = ''; + $text = ''; + } else { + $tail = $q[1]; + $text = $q[2]; + } + } + + $matches[$marker] = array( $element, + $content, + Sanitizer::decodeTagAttributes( $attributes ), + "<$element$attributes$close$content$tail" ); + } + return $stripped; + } + + /** + * Strips and renders nowiki, pre, math, hiero + * If $render is set, performs necessary rendering operations on plugins + * Returns the text, and fills an array with data needed in unstrip() + * + * @param StripState $state + * + * @param bool $stripcomments when set, HTML comments <!-- like this --> + * will be stripped in addition to other tags. This is important + * for section editing, where these comments cause confusion when + * counting the sections in the wikisource + * + * @param array dontstrip contains tags which should not be stripped; + * used to prevent stipping of <gallery> when saving (fixes bug 2700) + * + * @private + */ + function strip( $text, $state, $stripcomments = false , $dontstrip = array () ) { + global $wgContLang; + wfProfileIn( __METHOD__ ); + $render = ($this->mOutputType == self::OT_HTML); + + $uniq_prefix = $this->mUniqPrefix; + $commentState = new ReplacementArray; + $nowikiItems = array(); + $generalItems = array(); + + $elements = array_merge( + array( 'nowiki', 'gallery' ), + array_keys( $this->mTagHooks ) ); + global $wgRawHtml; + if( $wgRawHtml ) { + $elements[] = 'html'; + } + if( $this->mOptions->getUseTeX() ) { + $elements[] = 'math'; + } + + # Removing $dontstrip tags from $elements list (currently only 'gallery', fixing bug 2700) + foreach ( $elements AS $k => $v ) { + if ( !in_array ( $v , $dontstrip ) ) continue; + unset ( $elements[$k] ); + } + + $matches = array(); + $text = self::extractTagsAndParams( $elements, $text, $matches, $uniq_prefix ); + + foreach( $matches as $marker => $data ) { + list( $element, $content, $params, $tag ) = $data; + if( $render ) { + $tagName = strtolower( $element ); + wfProfileIn( __METHOD__."-render-$tagName" ); + switch( $tagName ) { + case '!--': + // Comment + if( substr( $tag, -3 ) == '-->' ) { + $output = $tag; + } else { + // Unclosed comment in input. + // Close it so later stripping can remove it + $output = "$tag-->"; + } + break; + case 'html': + if( $wgRawHtml ) { + $output = $content; + break; + } + // Shouldn't happen otherwise. :) + case 'nowiki': + $output = Xml::escapeTagsOnly( $content ); + break; + case 'math': + $output = $wgContLang->armourMath( + MathRenderer::renderMath( $content, $params ) ); + break; + case 'gallery': + $output = $this->renderImageGallery( $content, $params ); + break; + default: + if( isset( $this->mTagHooks[$tagName] ) ) { + $output = call_user_func_array( $this->mTagHooks[$tagName], + array( $content, $params, $this ) ); + } else { + throw new MWException( "Invalid call hook $element" ); + } + } + wfProfileOut( __METHOD__."-render-$tagName" ); + } else { + // Just stripping tags; keep the source + $output = $tag; + } + + // Unstrip the output, to support recursive strip() calls + $output = $state->unstripBoth( $output ); + + if( !$stripcomments && $element == '!--' ) { + $commentState->setPair( $marker, $output ); + } elseif ( $element == 'html' || $element == 'nowiki' ) { + $nowikiItems[$marker] = $output; + } else { + $generalItems[$marker] = $output; + } + } + # Add the new items to the state + # We do this after the loop instead of during it to avoid slowing + # down the recursive unstrip + $state->nowiki->mergeArray( $nowikiItems ); + $state->general->mergeArray( $generalItems ); + + # Unstrip comments unless explicitly told otherwise. + # (The comments are always stripped prior to this point, so as to + # not invoke any extension tags / parser hooks contained within + # a comment.) + if ( !$stripcomments ) { + // Put them all back and forget them + $text = $commentState->replace( $text ); + } + + wfProfileOut( __METHOD__ ); + return $text; + } + + /** + * Restores pre, math, and other extensions removed by strip() + * + * always call unstripNoWiki() after this one + * @private + * @deprecated use $this->mStripState->unstrip() + */ + function unstrip( $text, $state ) { + return $state->unstripGeneral( $text ); + } + + /** + * Always call this after unstrip() to preserve the order + * + * @private + * @deprecated use $this->mStripState->unstrip() + */ + function unstripNoWiki( $text, $state ) { + return $state->unstripNoWiki( $text ); + } + + /** + * @deprecated use $this->mStripState->unstripBoth() + */ + function unstripForHTML( $text ) { + return $this->mStripState->unstripBoth( $text ); + } + + /** + * Add an item to the strip state + * Returns the unique tag which must be inserted into the stripped text + * The tag will be replaced with the original text in unstrip() + * + * @private + */ + function insertStripItem( $text, &$state ) { + $rnd = $this->mUniqPrefix . '-item' . self::getRandomString(); + $state->general->setPair( $rnd, $text ); + return $rnd; + } + + /** + * Interface with html tidy, used if $wgUseTidy = true. + * If tidy isn't able to correct the markup, the original will be + * returned in all its glory with a warning comment appended. + * + * Either the external tidy program or the in-process tidy extension + * will be used depending on availability. Override the default + * $wgTidyInternal setting to disable the internal if it's not working. + * + * @param string $text Hideous HTML input + * @return string Corrected HTML output + * @public + * @static + */ + function tidy( $text ) { + global $wgTidyInternal; + $wrappedtext = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"'. +' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html>'. +'<head><title>test</title></head><body>'.$text.'</body></html>'; + if( $wgTidyInternal ) { + $correctedtext = self::internalTidy( $wrappedtext ); + } else { + $correctedtext = self::externalTidy( $wrappedtext ); + } + if( is_null( $correctedtext ) ) { + wfDebug( "Tidy error detected!\n" ); + return $text . "\n<!-- Tidy found serious XHTML errors -->\n"; + } + return $correctedtext; + } + + /** + * Spawn an external HTML tidy process and get corrected markup back from it. + * + * @private + * @static + */ + function externalTidy( $text ) { + global $wgTidyConf, $wgTidyBin, $wgTidyOpts; + $fname = 'Parser::externalTidy'; + wfProfileIn( $fname ); + + $cleansource = ''; + $opts = ' -utf8'; + + $descriptorspec = array( + 0 => array('pipe', 'r'), + 1 => array('pipe', 'w'), + 2 => array('file', wfGetNull(), 'a') + ); + $pipes = array(); + $process = proc_open("$wgTidyBin -config $wgTidyConf $wgTidyOpts$opts", $descriptorspec, $pipes); + if (is_resource($process)) { + // Theoretically, this style of communication could cause a deadlock + // here. If the stdout buffer fills up, then writes to stdin could + // block. This doesn't appear to happen with tidy, because tidy only + // writes to stdout after it's finished reading from stdin. Search + // for tidyParseStdin and tidySaveStdout in console/tidy.c + fwrite($pipes[0], $text); + fclose($pipes[0]); + while (!feof($pipes[1])) { + $cleansource .= fgets($pipes[1], 1024); + } + fclose($pipes[1]); + proc_close($process); + } + + wfProfileOut( $fname ); + + if( $cleansource == '' && $text != '') { + // Some kind of error happened, so we couldn't get the corrected text. + // Just give up; we'll use the source text and append a warning. + return null; + } else { + return $cleansource; + } + } + + /** + * Use the HTML tidy PECL extension to use the tidy library in-process, + * saving the overhead of spawning a new process. + * + * 'pear install tidy' should be able to compile the extension module. + * + * @private + * @static + */ + function internalTidy( $text ) { + global $wgTidyConf, $IP; + $fname = 'Parser::internalTidy'; + wfProfileIn( $fname ); + + $tidy = new tidy; + $tidy->parseString( $text, $wgTidyConf, 'utf8' ); + $tidy->cleanRepair(); + if( $tidy->getStatus() == 2 ) { + // 2 is magic number for fatal error + // http://www.php.net/manual/en/function.tidy-get-status.php + $cleansource = null; + } else { + $cleansource = tidy_get_output( $tidy ); + } + wfProfileOut( $fname ); + return $cleansource; + } + + /** + * parse the wiki syntax used to render tables + * + * @private + */ + function doTableStuff ( $text ) { + $fname = 'Parser::doTableStuff'; + wfProfileIn( $fname ); + + $lines = explode ( "\n" , $text ); + $td_history = array (); // Is currently a td tag open? + $last_tag_history = array (); // Save history of last lag activated (td, th or caption) + $tr_history = array (); // Is currently a tr tag open? + $tr_attributes = array (); // history of tr attributes + $has_opened_tr = array(); // Did this table open a <tr> element? + $indent_level = 0; // indent level of the table + foreach ( $lines as $key => $line ) + { + $line = trim ( $line ); + + if( $line == '' ) { // empty line, go to next line + continue; + } + $first_character = $line{0}; + $matches = array(); + + if ( preg_match( '/^(:*)\{\|(.*)$/' , $line , $matches ) ) { + // First check if we are starting a new table + $indent_level = strlen( $matches[1] ); + + $attributes = $this->mStripState->unstripBoth( $matches[2] ); + $attributes = Sanitizer::fixTagAttributes ( $attributes , 'table' ); + + $lines[$key] = str_repeat( '<dl><dd>' , $indent_level ) . "<table{$attributes}>"; + array_push ( $td_history , false ); + array_push ( $last_tag_history , '' ); + array_push ( $tr_history , false ); + array_push ( $tr_attributes , '' ); + array_push ( $has_opened_tr , false ); + } else if ( count ( $td_history ) == 0 ) { + // Don't do any of the following + continue; + } else if ( substr ( $line , 0 , 2 ) == '|}' ) { + // We are ending a table + $line = '</table>' . substr ( $line , 2 ); + $last_tag = array_pop ( $last_tag_history ); + + if ( !array_pop ( $has_opened_tr ) ) { + $line = "<tr><td></td></tr>{$line}"; + } + + if ( array_pop ( $tr_history ) ) { + $line = "</tr>{$line}"; + } + + if ( array_pop ( $td_history ) ) { + $line = "</{$last_tag}>{$line}"; + } + array_pop ( $tr_attributes ); + $lines[$key] = $line . str_repeat( '</dd></dl>' , $indent_level ); + } else if ( substr ( $line , 0 , 2 ) == '|-' ) { + // Now we have a table row + $line = preg_replace( '#^\|-+#', '', $line ); + + // Whats after the tag is now only attributes + $attributes = $this->mStripState->unstripBoth( $line ); + $attributes = Sanitizer::fixTagAttributes ( $attributes , 'tr' ); + array_pop ( $tr_attributes ); + array_push ( $tr_attributes , $attributes ); + + $line = ''; + $last_tag = array_pop ( $last_tag_history ); + array_pop ( $has_opened_tr ); + array_push ( $has_opened_tr , true ); + + if ( array_pop ( $tr_history ) ) { + $line = '</tr>'; + } + + if ( array_pop ( $td_history ) ) { + $line = "</{$last_tag}>{$line}"; + } + + $lines[$key] = $line; + array_push ( $tr_history , false ); + array_push ( $td_history , false ); + array_push ( $last_tag_history , '' ); + } + else if ( $first_character == '|' || $first_character == '!' || substr ( $line , 0 , 2 ) == '|+' ) { + // This might be cell elements, td, th or captions + if ( substr ( $line , 0 , 2 ) == '|+' ) { + $first_character = '+'; + $line = substr ( $line , 1 ); + } + + $line = substr ( $line , 1 ); + + if ( $first_character == '!' ) { + $line = str_replace ( '!!' , '||' , $line ); + } + + // Split up multiple cells on the same line. + // FIXME : This can result in improper nesting of tags processed + // by earlier parser steps, but should avoid splitting up eg + // attribute values containing literal "||". + $cells = StringUtils::explodeMarkup( '||' , $line ); + + $lines[$key] = ''; + + // Loop through each table cell + foreach ( $cells as $cell ) + { + $previous = ''; + if ( $first_character != '+' ) + { + $tr_after = array_pop ( $tr_attributes ); + if ( !array_pop ( $tr_history ) ) { + $previous = "<tr{$tr_after}>\n"; + } + array_push ( $tr_history , true ); + array_push ( $tr_attributes , '' ); + array_pop ( $has_opened_tr ); + array_push ( $has_opened_tr , true ); + } + + $last_tag = array_pop ( $last_tag_history ); + + if ( array_pop ( $td_history ) ) { + $previous = "</{$last_tag}>{$previous}"; + } + + if ( $first_character == '|' ) { + $last_tag = 'td'; + } else if ( $first_character == '!' ) { + $last_tag = 'th'; + } else if ( $first_character == '+' ) { + $last_tag = 'caption'; + } else { + $last_tag = ''; + } + + array_push ( $last_tag_history , $last_tag ); + + // A cell could contain both parameters and data + $cell_data = explode ( '|' , $cell , 2 ); + + // Bug 553: Note that a '|' inside an invalid link should not + // be mistaken as delimiting cell parameters + if ( strpos( $cell_data[0], '[[' ) !== false ) { + $cell = "{$previous}<{$last_tag}>{$cell}"; + } else if ( count ( $cell_data ) == 1 ) + $cell = "{$previous}<{$last_tag}>{$cell_data[0]}"; + else { + $attributes = $this->mStripState->unstripBoth( $cell_data[0] ); + $attributes = Sanitizer::fixTagAttributes( $attributes , $last_tag ); + $cell = "{$previous}<{$last_tag}{$attributes}>{$cell_data[1]}"; + } + + $lines[$key] .= $cell; + array_push ( $td_history , true ); + } + } + } + + // Closing open td, tr && table + while ( count ( $td_history ) > 0 ) + { + if ( array_pop ( $td_history ) ) { + $lines[] = '</td>' ; + } + if ( array_pop ( $tr_history ) ) { + $lines[] = '</tr>' ; + } + if ( !array_pop ( $has_opened_tr ) ) { + $lines[] = "<tr><td></td></tr>" ; + } + + $lines[] = '</table>' ; + } + + $output = implode ( "\n" , $lines ) ; + + // special case: don't return empty table + if( $output == "<table>\n<tr><td></td></tr>\n</table>" ) { + $output = ''; + } + + wfProfileOut( $fname ); + + return $output; + } + + /** + * Helper function for parse() that transforms wiki markup into + * HTML. Only called for $mOutputType == OT_HTML. + * + * @private + */ + function internalParse( $text ) { + $args = array(); + $isMain = true; + $fname = 'Parser::internalParse'; + wfProfileIn( $fname ); + + # Hook to suspend the parser in this state + if ( !wfRunHooks( 'ParserBeforeInternalParse', array( &$this, &$text, &$this->mStripState ) ) ) { + wfProfileOut( $fname ); + return $text ; + } + + # Remove <noinclude> tags and <includeonly> sections + $text = strtr( $text, array( '<onlyinclude>' => '' , '</onlyinclude>' => '' ) ); + $text = strtr( $text, array( '<noinclude>' => '', '</noinclude>' => '') ); + $text = StringUtils::delimiterReplace( '<includeonly>', '</includeonly>', '', $text ); + + $text = Sanitizer::removeHTMLtags( $text, array( &$this, 'attributeStripCallback' ), array(), array_keys( $this->mTransparentTagHooks ) ); + + $text = $this->replaceVariables( $text, $args ); + wfRunHooks( 'InternalParseBeforeLinks', array( &$this, &$text, &$this->mStripState ) ); + + // Tables need to come after variable replacement for things to work + // properly; putting them before other transformations should keep + // exciting things like link expansions from showing up in surprising + // places. + $text = $this->doTableStuff( $text ); + + $text = preg_replace( '/(^|\n)-----*/', '\\1<hr />', $text ); + + $text = $this->stripToc( $text ); + $this->stripNoGallery( $text ); + $text = $this->doHeadings( $text ); + if($this->mOptions->getUseDynamicDates()) { + $df =& DateFormatter::getInstance(); + $text = $df->reformat( $this->mOptions->getDateFormat(), $text ); + } + $text = $this->doAllQuotes( $text ); + $text = $this->replaceInternalLinks( $text ); + $text = $this->replaceExternalLinks( $text ); + + # replaceInternalLinks may sometimes leave behind + # absolute URLs, which have to be masked to hide them from replaceExternalLinks + $text = str_replace($this->mUniqPrefix."NOPARSE", "", $text); + + $text = $this->doMagicLinks( $text ); + $text = $this->formatHeadings( $text, $isMain ); + + wfProfileOut( $fname ); + return $text; + } + + /** + * Replace special strings like "ISBN xxx" and "RFC xxx" with + * magic external links. + * + * @private + */ + function &doMagicLinks( &$text ) { + wfProfileIn( __METHOD__ ); + $text = preg_replace_callback( + '!(?: # Start cases + <a.*?</a> | # Skip link text + <.*?> | # Skip stuff inside HTML elements + (?:RFC|PMID)\s+([0-9]+) | # RFC or PMID, capture number as m[1] + ISBN\s+(\b # ISBN, capture number as m[2] + (?: 97[89] [\ \-]? )? # optional 13-digit ISBN prefix + (?: [0-9] [\ \-]? ){9} # 9 digits with opt. delimiters + [0-9Xx] # check digit + \b) + )!x', array( &$this, 'magicLinkCallback' ), $text ); + wfProfileOut( __METHOD__ ); + return $text; + } + + function magicLinkCallback( $m ) { + if ( substr( $m[0], 0, 1 ) == '<' ) { + # Skip HTML element + return $m[0]; + } elseif ( substr( $m[0], 0, 4 ) == 'ISBN' ) { + $isbn = $m[2]; + $num = strtr( $isbn, array( + '-' => '', + ' ' => '', + 'x' => 'X', + )); + $titleObj = SpecialPage::getTitleFor( 'Booksources' ); + $text = '<a href="' . + $titleObj->escapeLocalUrl( "isbn=$num" ) . + "\" class=\"internal\">ISBN $isbn</a>"; + } else { + if ( substr( $m[0], 0, 3 ) == 'RFC' ) { + $keyword = 'RFC'; + $urlmsg = 'rfcurl'; + $id = $m[1]; + } elseif ( substr( $m[0], 0, 4 ) == 'PMID' ) { + $keyword = 'PMID'; + $urlmsg = 'pubmedurl'; + $id = $m[1]; + } else { + throw new MWException( __METHOD__.': unrecognised match type "' . + substr($m[0], 0, 20 ) . '"' ); + } + + $url = wfMsg( $urlmsg, $id); + $sk = $this->mOptions->getSkin(); + $la = $sk->getExternalLinkAttributes( $url, $keyword.$id ); + $text = "<a href=\"{$url}\"{$la}>{$keyword} {$id}</a>"; + } + return $text; + } + + /** + * Parse headers and return html + * + * @private + */ + function doHeadings( $text ) { + $fname = 'Parser::doHeadings'; + wfProfileIn( $fname ); + for ( $i = 6; $i >= 1; --$i ) { + $h = str_repeat( '=', $i ); + $text = preg_replace( "/^{$h}(.+){$h}\\s*$/m", + "<h{$i}>\\1</h{$i}>\\2", $text ); + } + wfProfileOut( $fname ); + return $text; + } + + /** + * Replace single quotes with HTML markup + * @private + * @return string the altered text + */ + function doAllQuotes( $text ) { + $fname = 'Parser::doAllQuotes'; + wfProfileIn( $fname ); + $outtext = ''; + $lines = explode( "\n", $text ); + foreach ( $lines as $line ) { + $outtext .= $this->doQuotes ( $line ) . "\n"; + } + $outtext = substr($outtext, 0,-1); + wfProfileOut( $fname ); + return $outtext; + } + + /** + * Helper function for doAllQuotes() + */ + public function doQuotes( $text ) { + $arr = preg_split( "/(''+)/", $text, -1, PREG_SPLIT_DELIM_CAPTURE ); + if ( count( $arr ) == 1 ) + return $text; + else + { + # First, do some preliminary work. This may shift some apostrophes from + # being mark-up to being text. It also counts the number of occurrences + # of bold and italics mark-ups. + $i = 0; + $numbold = 0; + $numitalics = 0; + foreach ( $arr as $r ) + { + if ( ( $i % 2 ) == 1 ) + { + # If there are ever four apostrophes, assume the first is supposed to + # be text, and the remaining three constitute mark-up for bold text. + if ( strlen( $arr[$i] ) == 4 ) + { + $arr[$i-1] .= "'"; + $arr[$i] = "'''"; + } + # If there are more than 5 apostrophes in a row, assume they're all + # text except for the last 5. + else if ( strlen( $arr[$i] ) > 5 ) + { + $arr[$i-1] .= str_repeat( "'", strlen( $arr[$i] ) - 5 ); + $arr[$i] = "'''''"; + } + # Count the number of occurrences of bold and italics mark-ups. + # We are not counting sequences of five apostrophes. + if ( strlen( $arr[$i] ) == 2 ) { $numitalics++; } + else if ( strlen( $arr[$i] ) == 3 ) { $numbold++; } + else if ( strlen( $arr[$i] ) == 5 ) { $numitalics++; $numbold++; } + } + $i++; + } + + # If there is an odd number of both bold and italics, it is likely + # that one of the bold ones was meant to be an apostrophe followed + # by italics. Which one we cannot know for certain, but it is more + # likely to be one that has a single-letter word before it. + if ( ( $numbold % 2 == 1 ) && ( $numitalics % 2 == 1 ) ) + { + $i = 0; + $firstsingleletterword = -1; + $firstmultiletterword = -1; + $firstspace = -1; + foreach ( $arr as $r ) + { + if ( ( $i % 2 == 1 ) and ( strlen( $r ) == 3 ) ) + { + $x1 = substr ($arr[$i-1], -1); + $x2 = substr ($arr[$i-1], -2, 1); + if ($x1 == ' ') { + if ($firstspace == -1) $firstspace = $i; + } else if ($x2 == ' ') { + if ($firstsingleletterword == -1) $firstsingleletterword = $i; + } else { + if ($firstmultiletterword == -1) $firstmultiletterword = $i; + } + } + $i++; + } + + # If there is a single-letter word, use it! + if ($firstsingleletterword > -1) + { + $arr [ $firstsingleletterword ] = "''"; + $arr [ $firstsingleletterword-1 ] .= "'"; + } + # If not, but there's a multi-letter word, use that one. + else if ($firstmultiletterword > -1) + { + $arr [ $firstmultiletterword ] = "''"; + $arr [ $firstmultiletterword-1 ] .= "'"; + } + # ... otherwise use the first one that has neither. + # (notice that it is possible for all three to be -1 if, for example, + # there is only one pentuple-apostrophe in the line) + else if ($firstspace > -1) + { + $arr [ $firstspace ] = "''"; + $arr [ $firstspace-1 ] .= "'"; + } + } + + # Now let's actually convert our apostrophic mush to HTML! + $output = ''; + $buffer = ''; + $state = ''; + $i = 0; + foreach ($arr as $r) + { + if (($i % 2) == 0) + { + if ($state == 'both') + $buffer .= $r; + else + $output .= $r; + } + else + { + if (strlen ($r) == 2) + { + if ($state == 'i') + { $output .= '</i>'; $state = ''; } + else if ($state == 'bi') + { $output .= '</i>'; $state = 'b'; } + else if ($state == 'ib') + { $output .= '</b></i><b>'; $state = 'b'; } + else if ($state == 'both') + { $output .= '<b><i>'.$buffer.'</i>'; $state = 'b'; } + else # $state can be 'b' or '' + { $output .= '<i>'; $state .= 'i'; } + } + else if (strlen ($r) == 3) + { + if ($state == 'b') + { $output .= '</b>'; $state = ''; } + else if ($state == 'bi') + { $output .= '</i></b><i>'; $state = 'i'; } + else if ($state == 'ib') + { $output .= '</b>'; $state = 'i'; } + else if ($state == 'both') + { $output .= '<i><b>'.$buffer.'</b>'; $state = 'i'; } + else # $state can be 'i' or '' + { $output .= '<b>'; $state .= 'b'; } + } + else if (strlen ($r) == 5) + { + if ($state == 'b') + { $output .= '</b><i>'; $state = 'i'; } + else if ($state == 'i') + { $output .= '</i><b>'; $state = 'b'; } + else if ($state == 'bi') + { $output .= '</i></b>'; $state = ''; } + else if ($state == 'ib') + { $output .= '</b></i>'; $state = ''; } + else if ($state == 'both') + { $output .= '<i><b>'.$buffer.'</b></i>'; $state = ''; } + else # ($state == '') + { $buffer = ''; $state = 'both'; } + } + } + $i++; + } + # Now close all remaining tags. Notice that the order is important. + if ($state == 'b' || $state == 'ib') + $output .= '</b>'; + if ($state == 'i' || $state == 'bi' || $state == 'ib') + $output .= '</i>'; + if ($state == 'bi') + $output .= '</b>'; + # There might be lonely ''''', so make sure we have a buffer + if ($state == 'both' && $buffer) + $output .= '<b><i>'.$buffer.'</i></b>'; + return $output; + } + } + + /** + * Replace external links + * + * Note: this is all very hackish and the order of execution matters a lot. + * Make sure to run maintenance/parserTests.php if you change this code. + * + * @private + */ + function replaceExternalLinks( $text ) { + global $wgContLang; + $fname = 'Parser::replaceExternalLinks'; + wfProfileIn( $fname ); + + $sk = $this->mOptions->getSkin(); + + $bits = preg_split( $this->mExtLinkBracketedRegex, $text, -1, PREG_SPLIT_DELIM_CAPTURE ); + + $s = $this->replaceFreeExternalLinks( array_shift( $bits ) ); + + $i = 0; + while ( $i<count( $bits ) ) { + $url = $bits[$i++]; + $protocol = $bits[$i++]; + $text = $bits[$i++]; + $trail = $bits[$i++]; + + # The characters '<' and '>' (which were escaped by + # removeHTMLtags()) should not be included in + # URLs, per RFC 2396. + $m2 = array(); + if (preg_match('/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE)) { + $text = substr($url, $m2[0][1]) . ' ' . $text; + $url = substr($url, 0, $m2[0][1]); + } + + # If the link text is an image URL, replace it with an <img> tag + # This happened by accident in the original parser, but some people used it extensively + $img = $this->maybeMakeExternalImage( $text ); + if ( $img !== false ) { + $text = $img; + } + + $dtrail = ''; + + # Set linktype for CSS - if URL==text, link is essentially free + $linktype = ($text == $url) ? 'free' : 'text'; + + # No link text, e.g. [http://domain.tld/some.link] + if ( $text == '' ) { + # Autonumber if allowed. See bug #5918 + if ( strpos( wfUrlProtocols(), substr($protocol, 0, strpos($protocol, ':')) ) !== false ) { + $text = '[' . ++$this->mAutonumber . ']'; + $linktype = 'autonumber'; + } else { + # Otherwise just use the URL + $text = htmlspecialchars( $url ); + $linktype = 'free'; + } + } else { + # Have link text, e.g. [http://domain.tld/some.link text]s + # Check for trail + list( $dtrail, $trail ) = Linker::splitTrail( $trail ); + } + + $text = $wgContLang->markNoConversion($text); + + $url = Sanitizer::cleanUrl( $url ); + + # Process the trail (i.e. everything after this link up until start of the next link), + # replacing any non-bracketed links + $trail = $this->replaceFreeExternalLinks( $trail ); + + # Use the encoded URL + # This means that users can paste URLs directly into the text + # Funny characters like ö aren't valid in URLs anyway + # This was changed in August 2004 + $s .= $sk->makeExternalLink( $url, $text, false, $linktype, $this->mTitle->getNamespace() ) . $dtrail . $trail; + + # Register link in the output object. + # Replace unnecessary URL escape codes with the referenced character + # This prevents spammers from hiding links from the filters + $pasteurized = self::replaceUnusualEscapes( $url ); + $this->mOutput->addExternalLink( $pasteurized ); + } + + wfProfileOut( $fname ); + return $s; + } + + /** + * Replace anything that looks like a URL with a link + * @private + */ + function replaceFreeExternalLinks( $text ) { + global $wgContLang; + $fname = 'Parser::replaceFreeExternalLinks'; + wfProfileIn( $fname ); + + $bits = preg_split( '/(\b(?:' . wfUrlProtocols() . '))/S', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); + $s = array_shift( $bits ); + $i = 0; + + $sk = $this->mOptions->getSkin(); + + while ( $i < count( $bits ) ){ + $protocol = $bits[$i++]; + $remainder = $bits[$i++]; + + $m = array(); + if ( preg_match( '/^('.self::EXT_LINK_URL_CLASS.'+)(.*)$/s', $remainder, $m ) ) { + # Found some characters after the protocol that look promising + $url = $protocol . $m[1]; + $trail = $m[2]; + + # special case: handle urls as url args: + # http://www.example.com/foo?=http://www.example.com/bar + if(strlen($trail) == 0 && + isset($bits[$i]) && + preg_match('/^'. wfUrlProtocols() . '$/S', $bits[$i]) && + preg_match( '/^('.self::EXT_LINK_URL_CLASS.'+)(.*)$/s', $bits[$i + 1], $m )) + { + # add protocol, arg + $url .= $bits[$i] . $m[1]; # protocol, url as arg to previous link + $i += 2; + $trail = $m[2]; + } + + # The characters '<' and '>' (which were escaped by + # removeHTMLtags()) should not be included in + # URLs, per RFC 2396. + $m2 = array(); + if (preg_match('/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE)) { + $trail = substr($url, $m2[0][1]) . $trail; + $url = substr($url, 0, $m2[0][1]); + } + + # Move trailing punctuation to $trail + $sep = ',;\.:!?'; + # If there is no left bracket, then consider right brackets fair game too + if ( strpos( $url, '(' ) === false ) { + $sep .= ')'; + } + + $numSepChars = strspn( strrev( $url ), $sep ); + if ( $numSepChars ) { + $trail = substr( $url, -$numSepChars ) . $trail; + $url = substr( $url, 0, -$numSepChars ); + } + + $url = Sanitizer::cleanUrl( $url ); + + # Is this an external image? + $text = $this->maybeMakeExternalImage( $url ); + if ( $text === false ) { + # Not an image, make a link + $text = $sk->makeExternalLink( $url, $wgContLang->markNoConversion($url), true, 'free', $this->mTitle->getNamespace() ); + # Register it in the output object... + # Replace unnecessary URL escape codes with their equivalent characters + $pasteurized = self::replaceUnusualEscapes( $url ); + $this->mOutput->addExternalLink( $pasteurized ); + } + $s .= $text . $trail; + } else { + $s .= $protocol . $remainder; + } + } + wfProfileOut( $fname ); + return $s; + } + + /** + * Replace unusual URL escape codes with their equivalent characters + * @param string + * @return string + * @static + * @todo This can merge genuinely required bits in the path or query string, + * breaking legit URLs. A proper fix would treat the various parts of + * the URL differently; as a workaround, just use the output for + * statistical records, not for actual linking/output. + */ + static function replaceUnusualEscapes( $url ) { + return preg_replace_callback( '/%[0-9A-Fa-f]{2}/', + array( __CLASS__, 'replaceUnusualEscapesCallback' ), $url ); + } + + /** + * Callback function used in replaceUnusualEscapes(). + * Replaces unusual URL escape codes with their equivalent character + * @static + * @private + */ + private static function replaceUnusualEscapesCallback( $matches ) { + $char = urldecode( $matches[0] ); + $ord = ord( $char ); + // Is it an unsafe or HTTP reserved character according to RFC 1738? + if ( $ord > 32 && $ord < 127 && strpos( '<>"#{}|\^~[]`;/?', $char ) === false ) { + // No, shouldn't be escaped + return $char; + } else { + // Yes, leave it escaped + return $matches[0]; + } + } + + /** + * make an image if it's allowed, either through the global + * option or through the exception + * @private + */ + function maybeMakeExternalImage( $url ) { + $sk = $this->mOptions->getSkin(); + $imagesfrom = $this->mOptions->getAllowExternalImagesFrom(); + $imagesexception = !empty($imagesfrom); + $text = false; + if ( $this->mOptions->getAllowExternalImages() + || ( $imagesexception && strpos( $url, $imagesfrom ) === 0 ) ) { + if ( preg_match( self::EXT_IMAGE_REGEX, $url ) ) { + # Image found + $text = $sk->makeExternalImage( htmlspecialchars( $url ) ); + } + } + return $text; + } + + /** + * Process [[ ]] wikilinks + * + * @private + */ + function replaceInternalLinks( $s ) { + global $wgContLang; + static $fname = 'Parser::replaceInternalLinks' ; + + wfProfileIn( $fname ); + + wfProfileIn( $fname.'-setup' ); + static $tc = FALSE; + # the % is needed to support urlencoded titles as well + if ( !$tc ) { $tc = Title::legalChars() . '#%'; } + + $sk = $this->mOptions->getSkin(); + + #split the entire text string on occurences of [[ + $a = explode( '[[', ' ' . $s ); + #get the first element (all text up to first [[), and remove the space we added + $s = array_shift( $a ); + $s = substr( $s, 1 ); + + # Match a link having the form [[namespace:link|alternate]]trail + static $e1 = FALSE; + if ( !$e1 ) { $e1 = "/^([{$tc}]+)(?:\\|(.+?))?]](.*)\$/sD"; } + # Match cases where there is no "]]", which might still be images + static $e1_img = FALSE; + if ( !$e1_img ) { $e1_img = "/^([{$tc}]+)\\|(.*)\$/sD"; } + # Match the end of a line for a word that's not followed by whitespace, + # e.g. in the case of 'The Arab al[[Razi]]', 'al' will be matched + $e2 = wfMsgForContent( 'linkprefix' ); + + $useLinkPrefixExtension = $wgContLang->linkPrefixExtension(); + if( is_null( $this->mTitle ) ) { + throw new MWException( __METHOD__.": \$this->mTitle is null\n" ); + } + $nottalk = !$this->mTitle->isTalkPage(); + + if ( $useLinkPrefixExtension ) { + $m = array(); + if ( preg_match( $e2, $s, $m ) ) { + $first_prefix = $m[2]; + } else { + $first_prefix = false; + } + } else { + $prefix = ''; + } + + if($wgContLang->hasVariants()) { + $selflink = $wgContLang->convertLinkToAllVariants($this->mTitle->getPrefixedText()); + } else { + $selflink = array($this->mTitle->getPrefixedText()); + } + $useSubpages = $this->areSubpagesAllowed(); + wfProfileOut( $fname.'-setup' ); + + # Loop for each link + for ($k = 0; isset( $a[$k] ); $k++) { + $line = $a[$k]; + if ( $useLinkPrefixExtension ) { + wfProfileIn( $fname.'-prefixhandling' ); + if ( preg_match( $e2, $s, $m ) ) { + $prefix = $m[2]; + $s = $m[1]; + } else { + $prefix=''; + } + # first link + if($first_prefix) { + $prefix = $first_prefix; + $first_prefix = false; + } + wfProfileOut( $fname.'-prefixhandling' ); + } + + $might_be_img = false; + + wfProfileIn( "$fname-e1" ); + if ( preg_match( $e1, $line, $m ) ) { # page with normal text or alt + $text = $m[2]; + # If we get a ] at the beginning of $m[3] that means we have a link that's something like: + # [[Image:Foo.jpg|[http://example.com desc]]] <- having three ] in a row fucks up, + # the real problem is with the $e1 regex + # See bug 1300. + # + # Still some problems for cases where the ] is meant to be outside punctuation, + # and no image is in sight. See bug 2095. + # + if( $text !== '' && + substr( $m[3], 0, 1 ) === ']' && + strpos($text, '[') !== false + ) + { + $text .= ']'; # so that replaceExternalLinks($text) works later + $m[3] = substr( $m[3], 1 ); + } + # fix up urlencoded title texts + if( strpos( $m[1], '%' ) !== false ) { + # Should anchors '#' also be rejected? + $m[1] = str_replace( array('<', '>'), array('<', '>'), urldecode($m[1]) ); + } + $trail = $m[3]; + } elseif( preg_match($e1_img, $line, $m) ) { # Invalid, but might be an image with a link in its caption + $might_be_img = true; + $text = $m[2]; + if ( strpos( $m[1], '%' ) !== false ) { + $m[1] = urldecode($m[1]); + } + $trail = ""; + } else { # Invalid form; output directly + $s .= $prefix . '[[' . $line ; + wfProfileOut( "$fname-e1" ); + continue; + } + wfProfileOut( "$fname-e1" ); + wfProfileIn( "$fname-misc" ); + + # Don't allow internal links to pages containing + # PROTO: where PROTO is a valid URL protocol; these + # should be external links. + if (preg_match('/^\b(?:' . wfUrlProtocols() . ')/', $m[1])) { + $s .= $prefix . '[[' . $line ; + continue; + } + + # Make subpage if necessary + if( $useSubpages ) { + $link = $this->maybeDoSubpageLink( $m[1], $text ); + } else { + $link = $m[1]; + } + + $noforce = (substr($m[1], 0, 1) != ':'); + if (!$noforce) { + # Strip off leading ':' + $link = substr($link, 1); + } + + wfProfileOut( "$fname-misc" ); + wfProfileIn( "$fname-title" ); + $nt = Title::newFromText( $this->mStripState->unstripNoWiki($link) ); + if( !$nt ) { + $s .= $prefix . '[[' . $line; + wfProfileOut( "$fname-title" ); + continue; + } + + $ns = $nt->getNamespace(); + $iw = $nt->getInterWiki(); + wfProfileOut( "$fname-title" ); + + if ($might_be_img) { # if this is actually an invalid link + wfProfileIn( "$fname-might_be_img" ); + if ($ns == NS_IMAGE && $noforce) { #but might be an image + $found = false; + while (isset ($a[$k+1]) ) { + #look at the next 'line' to see if we can close it there + $spliced = array_splice( $a, $k + 1, 1 ); + $next_line = array_shift( $spliced ); + $m = explode( ']]', $next_line, 3 ); + if ( count( $m ) == 3 ) { + # the first ]] closes the inner link, the second the image + $found = true; + $text .= "[[{$m[0]}]]{$m[1]}"; + $trail = $m[2]; + break; + } elseif ( count( $m ) == 2 ) { + #if there's exactly one ]] that's fine, we'll keep looking + $text .= "[[{$m[0]}]]{$m[1]}"; + } else { + #if $next_line is invalid too, we need look no further + $text .= '[[' . $next_line; + break; + } + } + if ( !$found ) { + # we couldn't find the end of this imageLink, so output it raw + #but don't ignore what might be perfectly normal links in the text we've examined + $text = $this->replaceInternalLinks($text); + $s .= "{$prefix}[[$link|$text"; + # note: no $trail, because without an end, there *is* no trail + wfProfileOut( "$fname-might_be_img" ); + continue; + } + } else { #it's not an image, so output it raw + $s .= "{$prefix}[[$link|$text"; + # note: no $trail, because without an end, there *is* no trail + wfProfileOut( "$fname-might_be_img" ); + continue; + } + wfProfileOut( "$fname-might_be_img" ); + } + + $wasblank = ( '' == $text ); + if( $wasblank ) $text = $link; + + # Link not escaped by : , create the various objects + if( $noforce ) { + + # Interwikis + wfProfileIn( "$fname-interwiki" ); + if( $iw && $this->mOptions->getInterwikiMagic() && $nottalk && $wgContLang->getLanguageName( $iw ) ) { + $this->mOutput->addLanguageLink( $nt->getFullText() ); + $s = rtrim($s . $prefix); + $s .= trim($trail, "\n") == '' ? '': $prefix . $trail; + wfProfileOut( "$fname-interwiki" ); + continue; + } + wfProfileOut( "$fname-interwiki" ); + + if ( $ns == NS_IMAGE ) { + wfProfileIn( "$fname-image" ); + if ( !wfIsBadImage( $nt->getDBkey(), $this->mTitle ) ) { + # recursively parse links inside the image caption + # actually, this will parse them in any other parameters, too, + # but it might be hard to fix that, and it doesn't matter ATM + $text = $this->replaceExternalLinks($text); + $text = $this->replaceInternalLinks($text); + + # cloak any absolute URLs inside the image markup, so replaceExternalLinks() won't touch them + $s .= $prefix . $this->armorLinks( $this->makeImage( $nt, $text ) ) . $trail; + $this->mOutput->addImage( $nt->getDBkey() ); + + wfProfileOut( "$fname-image" ); + continue; + } else { + # We still need to record the image's presence on the page + $this->mOutput->addImage( $nt->getDBkey() ); + } + wfProfileOut( "$fname-image" ); + + } + + if ( $ns == NS_CATEGORY ) { + wfProfileIn( "$fname-category" ); + $s = rtrim($s . "\n"); # bug 87 + + if ( $wasblank ) { + $sortkey = $this->getDefaultSort(); + } else { + $sortkey = $text; + } + $sortkey = Sanitizer::decodeCharReferences( $sortkey ); + $sortkey = str_replace( "\n", '', $sortkey ); + $sortkey = $wgContLang->convertCategoryKey( $sortkey ); + $this->mOutput->addCategory( $nt->getDBkey(), $sortkey ); + + /** + * Strip the whitespace Category links produce, see bug 87 + * @todo We might want to use trim($tmp, "\n") here. + */ + $s .= trim($prefix . $trail, "\n") == '' ? '': $prefix . $trail; + + wfProfileOut( "$fname-category" ); + continue; + } + } + + # Self-link checking + if( $nt->getFragment() === '' ) { + if( in_array( $nt->getPrefixedText(), $selflink, true ) ) { + $s .= $prefix . $sk->makeSelfLinkObj( $nt, $text, '', $trail ); + continue; + } + } + + # Special and Media are pseudo-namespaces; no pages actually exist in them + if( $ns == NS_MEDIA ) { + $link = $sk->makeMediaLinkObj( $nt, $text ); + # Cloak with NOPARSE to avoid replacement in replaceExternalLinks + $s .= $prefix . $this->armorLinks( $link ) . $trail; + $this->mOutput->addImage( $nt->getDBkey() ); + continue; + } elseif( $ns == NS_SPECIAL ) { + if( SpecialPage::exists( $nt->getDBkey() ) ) { + $s .= $this->makeKnownLinkHolder( $nt, $text, '', $trail, $prefix ); + } else { + $s .= $this->makeLinkHolder( $nt, $text, '', $trail, $prefix ); + } + continue; + } elseif( $ns == NS_IMAGE ) { + $img = wfFindFile( $nt ); + if( $img ) { + // Force a blue link if the file exists; may be a remote + // upload on the shared repository, and we want to see its + // auto-generated page. + $s .= $this->makeKnownLinkHolder( $nt, $text, '', $trail, $prefix ); + $this->mOutput->addLink( $nt ); + continue; + } + } + $s .= $this->makeLinkHolder( $nt, $text, '', $trail, $prefix ); + } + wfProfileOut( $fname ); + return $s; + } + + /** + * Make a link placeholder. The text returned can be later resolved to a real link with + * replaceLinkHolders(). This is done for two reasons: firstly to avoid further + * parsing of interwiki links, and secondly to allow all existence checks and + * article length checks (for stub links) to be bundled into a single query. + * + */ + function makeLinkHolder( &$nt, $text = '', $query = '', $trail = '', $prefix = '' ) { + wfProfileIn( __METHOD__ ); + if ( ! is_object($nt) ) { + # Fail gracefully + $retVal = "<!-- ERROR -->{$prefix}{$text}{$trail}"; + } else { + # Separate the link trail from the rest of the link + list( $inside, $trail ) = Linker::splitTrail( $trail ); + + if ( $nt->isExternal() ) { + $nr = array_push( $this->mInterwikiLinkHolders['texts'], $prefix.$text.$inside ); + $this->mInterwikiLinkHolders['titles'][] = $nt; + $retVal = '<!--IWLINK '. ($nr-1) ."-->{$trail}"; + } else { + $nr = array_push( $this->mLinkHolders['namespaces'], $nt->getNamespace() ); + $this->mLinkHolders['dbkeys'][] = $nt->getDBkey(); + $this->mLinkHolders['queries'][] = $query; + $this->mLinkHolders['texts'][] = $prefix.$text.$inside; + $this->mLinkHolders['titles'][] = $nt; + + $retVal = '<!--LINK '. ($nr-1) ."-->{$trail}"; + } + } + wfProfileOut( __METHOD__ ); + return $retVal; + } + + /** + * Render a forced-blue link inline; protect against double expansion of + * URLs if we're in a mode that prepends full URL prefixes to internal links. + * Since this little disaster has to split off the trail text to avoid + * breaking URLs in the following text without breaking trails on the + * wiki links, it's been made into a horrible function. + * + * @param Title $nt + * @param string $text + * @param string $query + * @param string $trail + * @param string $prefix + * @return string HTML-wikitext mix oh yuck + */ + function makeKnownLinkHolder( $nt, $text = '', $query = '', $trail = '', $prefix = '' ) { + list( $inside, $trail ) = Linker::splitTrail( $trail ); + $sk = $this->mOptions->getSkin(); + $link = $sk->makeKnownLinkObj( $nt, $text, $query, $inside, $prefix ); + return $this->armorLinks( $link ) . $trail; + } + + /** + * Insert a NOPARSE hacky thing into any inline links in a chunk that's + * going to go through further parsing steps before inline URL expansion. + * + * In particular this is important when using action=render, which causes + * full URLs to be included. + * + * Oh man I hate our multi-layer parser! + * + * @param string more-or-less HTML + * @return string less-or-more HTML with NOPARSE bits + */ + function armorLinks( $text ) { + return preg_replace( '/\b(' . wfUrlProtocols() . ')/', + "{$this->mUniqPrefix}NOPARSE$1", $text ); + } + + /** + * Return true if subpage links should be expanded on this page. + * @return bool + */ + function areSubpagesAllowed() { + # Some namespaces don't allow subpages + global $wgNamespacesWithSubpages; + return !empty($wgNamespacesWithSubpages[$this->mTitle->getNamespace()]); + } + + /** + * Handle link to subpage if necessary + * @param string $target the source of the link + * @param string &$text the link text, modified as necessary + * @return string the full name of the link + * @private + */ + function maybeDoSubpageLink($target, &$text) { + # Valid link forms: + # Foobar -- normal + # :Foobar -- override special treatment of prefix (images, language links) + # /Foobar -- convert to CurrentPage/Foobar + # /Foobar/ -- convert to CurrentPage/Foobar, strip the initial / from text + # ../ -- convert to CurrentPage, from CurrentPage/CurrentSubPage + # ../Foobar -- convert to CurrentPage/Foobar, from CurrentPage/CurrentSubPage + + $fname = 'Parser::maybeDoSubpageLink'; + wfProfileIn( $fname ); + $ret = $target; # default return value is no change + + # Some namespaces don't allow subpages, + # so only perform processing if subpages are allowed + if( $this->areSubpagesAllowed() ) { + $hash = strpos( $target, '#' ); + if( $hash !== false ) { + $suffix = substr( $target, $hash ); + $target = substr( $target, 0, $hash ); + } else { + $suffix = ''; + } + # bug 7425 + $target = trim( $target ); + # Look at the first character + if( $target != '' && $target{0} == '/' ) { + # / at end means we don't want the slash to be shown + $m = array(); + $trailingSlashes = preg_match_all( '%(/+)$%', $target, $m ); + if( $trailingSlashes ) { + $noslash = $target = substr( $target, 1, -strlen($m[0][0]) ); + } else { + $noslash = substr( $target, 1 ); + } + + $ret = $this->mTitle->getPrefixedText(). '/' . trim($noslash) . $suffix; + if( '' === $text ) { + $text = $target . $suffix; + } # this might be changed for ugliness reasons + } else { + # check for .. subpage backlinks + $dotdotcount = 0; + $nodotdot = $target; + while( strncmp( $nodotdot, "../", 3 ) == 0 ) { + ++$dotdotcount; + $nodotdot = substr( $nodotdot, 3 ); + } + if($dotdotcount > 0) { + $exploded = explode( '/', $this->mTitle->GetPrefixedText() ); + if( count( $exploded ) > $dotdotcount ) { # not allowed to go below top level page + $ret = implode( '/', array_slice( $exploded, 0, -$dotdotcount ) ); + # / at the end means don't show full path + if( substr( $nodotdot, -1, 1 ) == '/' ) { + $nodotdot = substr( $nodotdot, 0, -1 ); + if( '' === $text ) { + $text = $nodotdot . $suffix; + } + } + $nodotdot = trim( $nodotdot ); + if( $nodotdot != '' ) { + $ret .= '/' . $nodotdot; + } + $ret .= $suffix; + } + } + } + } + + wfProfileOut( $fname ); + return $ret; + } + + /**#@+ + * Used by doBlockLevels() + * @private + */ + /* private */ function closeParagraph() { + $result = ''; + if ( '' != $this->mLastSection ) { + $result = '</' . $this->mLastSection . ">\n"; + } + $this->mInPre = false; + $this->mLastSection = ''; + return $result; + } + # getCommon() returns the length of the longest common substring + # of both arguments, starting at the beginning of both. + # + /* private */ function getCommon( $st1, $st2 ) { + $fl = strlen( $st1 ); + $shorter = strlen( $st2 ); + if ( $fl < $shorter ) { $shorter = $fl; } + + for ( $i = 0; $i < $shorter; ++$i ) { + if ( $st1{$i} != $st2{$i} ) { break; } + } + return $i; + } + # These next three functions open, continue, and close the list + # element appropriate to the prefix character passed into them. + # + /* private */ function openList( $char ) { + $result = $this->closeParagraph(); + + if ( '*' == $char ) { $result .= '<ul><li>'; } + else if ( '#' == $char ) { $result .= '<ol><li>'; } + else if ( ':' == $char ) { $result .= '<dl><dd>'; } + else if ( ';' == $char ) { + $result .= '<dl><dt>'; + $this->mDTopen = true; + } + else { $result = '<!-- ERR 1 -->'; } + + return $result; + } + + /* private */ function nextItem( $char ) { + if ( '*' == $char || '#' == $char ) { return '</li><li>'; } + else if ( ':' == $char || ';' == $char ) { + $close = '</dd>'; + if ( $this->mDTopen ) { $close = '</dt>'; } + if ( ';' == $char ) { + $this->mDTopen = true; + return $close . '<dt>'; + } else { + $this->mDTopen = false; + return $close . '<dd>'; + } + } + return '<!-- ERR 2 -->'; + } + + /* private */ function closeList( $char ) { + if ( '*' == $char ) { $text = '</li></ul>'; } + else if ( '#' == $char ) { $text = '</li></ol>'; } + else if ( ':' == $char ) { + if ( $this->mDTopen ) { + $this->mDTopen = false; + $text = '</dt></dl>'; + } else { + $text = '</dd></dl>'; + } + } + else { return '<!-- ERR 3 -->'; } + return $text."\n"; + } + /**#@-*/ + + /** + * Make lists from lines starting with ':', '*', '#', etc. + * + * @private + * @return string the lists rendered as HTML + */ + function doBlockLevels( $text, $linestart ) { + $fname = 'Parser::doBlockLevels'; + wfProfileIn( $fname ); + + # Parsing through the text line by line. The main thing + # happening here is handling of block-level elements p, pre, + # and making lists from lines starting with * # : etc. + # + $textLines = explode( "\n", $text ); + + $lastPrefix = $output = ''; + $this->mDTopen = $inBlockElem = false; + $prefixLength = 0; + $paragraphStack = false; + + if ( !$linestart ) { + $output .= array_shift( $textLines ); + } + foreach ( $textLines as $oLine ) { + $lastPrefixLength = strlen( $lastPrefix ); + $preCloseMatch = preg_match('/<\\/pre/i', $oLine ); + $preOpenMatch = preg_match('/<pre/i', $oLine ); + if ( !$this->mInPre ) { + # Multiple prefixes may abut each other for nested lists. + $prefixLength = strspn( $oLine, '*#:;' ); + $pref = substr( $oLine, 0, $prefixLength ); + + # eh? + $pref2 = str_replace( ';', ':', $pref ); + $t = substr( $oLine, $prefixLength ); + $this->mInPre = !empty($preOpenMatch); + } else { + # Don't interpret any other prefixes in preformatted text + $prefixLength = 0; + $pref = $pref2 = ''; + $t = $oLine; + } + + # List generation + if( $prefixLength && 0 == strcmp( $lastPrefix, $pref2 ) ) { + # Same as the last item, so no need to deal with nesting or opening stuff + $output .= $this->nextItem( substr( $pref, -1 ) ); + $paragraphStack = false; + + if ( substr( $pref, -1 ) == ';') { + # The one nasty exception: definition lists work like this: + # ; title : definition text + # So we check for : in the remainder text to split up the + # title and definition, without b0rking links. + $term = $t2 = ''; + if ($this->findColonNoLinks($t, $term, $t2) !== false) { + $t = $t2; + $output .= $term . $this->nextItem( ':' ); + } + } + } elseif( $prefixLength || $lastPrefixLength ) { + # Either open or close a level... + $commonPrefixLength = $this->getCommon( $pref, $lastPrefix ); + $paragraphStack = false; + + while( $commonPrefixLength < $lastPrefixLength ) { + $output .= $this->closeList( $lastPrefix{$lastPrefixLength-1} ); + --$lastPrefixLength; + } + if ( $prefixLength <= $commonPrefixLength && $commonPrefixLength > 0 ) { + $output .= $this->nextItem( $pref{$commonPrefixLength-1} ); + } + while ( $prefixLength > $commonPrefixLength ) { + $char = substr( $pref, $commonPrefixLength, 1 ); + $output .= $this->openList( $char ); + + if ( ';' == $char ) { + # FIXME: This is dupe of code above + if ($this->findColonNoLinks($t, $term, $t2) !== false) { + $t = $t2; + $output .= $term . $this->nextItem( ':' ); + } + } + ++$commonPrefixLength; + } + $lastPrefix = $pref2; + } + if( 0 == $prefixLength ) { + wfProfileIn( "$fname-paragraph" ); + # No prefix (not in list)--go to paragraph mode + // XXX: use a stack for nestable elements like span, table and div + $openmatch = preg_match('/(?:<table|<blockquote|<h1|<h2|<h3|<h4|<h5|<h6|<pre|<tr|<p|<ul|<ol|<li|<\\/tr|<\\/td|<\\/th)/iS', $t ); + $closematch = preg_match( + '/(?:<\\/table|<\\/blockquote|<\\/h1|<\\/h2|<\\/h3|<\\/h4|<\\/h5|<\\/h6|'. + '<td|<th|<\\/?div|<hr|<\\/pre|<\\/p|'.$this->mUniqPrefix.'-pre|<\\/li|<\\/ul|<\\/ol|<\\/?center)/iS', $t ); + if ( $openmatch or $closematch ) { + $paragraphStack = false; + #Â TODO bug 5718: paragraph closed + $output .= $this->closeParagraph(); + if ( $preOpenMatch and !$preCloseMatch ) { + $this->mInPre = true; + } + if ( $closematch ) { + $inBlockElem = false; + } else { + $inBlockElem = true; + } + } else if ( !$inBlockElem && !$this->mInPre ) { + if ( ' ' == $t{0} and ( $this->mLastSection == 'pre' or trim($t) != '' ) ) { + // pre + if ($this->mLastSection != 'pre') { + $paragraphStack = false; + $output .= $this->closeParagraph().'<pre>'; + $this->mLastSection = 'pre'; + } + $t = substr( $t, 1 ); + } else { + // paragraph + if ( '' == trim($t) ) { + if ( $paragraphStack ) { + $output .= $paragraphStack.'<br />'; + $paragraphStack = false; + $this->mLastSection = 'p'; + } else { + if ($this->mLastSection != 'p' ) { + $output .= $this->closeParagraph(); + $this->mLastSection = ''; + $paragraphStack = '<p>'; + } else { + $paragraphStack = '</p><p>'; + } + } + } else { + if ( $paragraphStack ) { + $output .= $paragraphStack; + $paragraphStack = false; + $this->mLastSection = 'p'; + } else if ($this->mLastSection != 'p') { + $output .= $this->closeParagraph().'<p>'; + $this->mLastSection = 'p'; + } + } + } + } + wfProfileOut( "$fname-paragraph" ); + } + // somewhere above we forget to get out of pre block (bug 785) + if($preCloseMatch && $this->mInPre) { + $this->mInPre = false; + } + if ($paragraphStack === false) { + $output .= $t."\n"; + } + } + while ( $prefixLength ) { + $output .= $this->closeList( $pref2{$prefixLength-1} ); + --$prefixLength; + } + if ( '' != $this->mLastSection ) { + $output .= '</' . $this->mLastSection . '>'; + $this->mLastSection = ''; + } + + wfProfileOut( $fname ); + return $output; + } + + /** + * Split up a string on ':', ignoring any occurences inside tags + * to prevent illegal overlapping. + * @param string $str the string to split + * @param string &$before set to everything before the ':' + * @param string &$after set to everything after the ':' + * return string the position of the ':', or false if none found + */ + function findColonNoLinks($str, &$before, &$after) { + $fname = 'Parser::findColonNoLinks'; + wfProfileIn( $fname ); + + $pos = strpos( $str, ':' ); + if( $pos === false ) { + // Nothing to find! + wfProfileOut( $fname ); + return false; + } + + $lt = strpos( $str, '<' ); + if( $lt === false || $lt > $pos ) { + // Easy; no tag nesting to worry about + $before = substr( $str, 0, $pos ); + $after = substr( $str, $pos+1 ); + wfProfileOut( $fname ); + return $pos; + } + + // Ugly state machine to walk through avoiding tags. + $state = self::COLON_STATE_TEXT; + $stack = 0; + $len = strlen( $str ); + for( $i = 0; $i < $len; $i++ ) { + $c = $str{$i}; + + switch( $state ) { + // (Using the number is a performance hack for common cases) + case 0: // self::COLON_STATE_TEXT: + switch( $c ) { + case "<": + // Could be either a <start> tag or an </end> tag + $state = self::COLON_STATE_TAGSTART; + break; + case ":": + if( $stack == 0 ) { + // We found it! + $before = substr( $str, 0, $i ); + $after = substr( $str, $i + 1 ); + wfProfileOut( $fname ); + return $i; + } + // Embedded in a tag; don't break it. + break; + default: + // Skip ahead looking for something interesting + $colon = strpos( $str, ':', $i ); + if( $colon === false ) { + // Nothing else interesting + wfProfileOut( $fname ); + return false; + } + $lt = strpos( $str, '<', $i ); + if( $stack === 0 ) { + if( $lt === false || $colon < $lt ) { + // We found it! + $before = substr( $str, 0, $colon ); + $after = substr( $str, $colon + 1 ); + wfProfileOut( $fname ); + return $i; + } + } + if( $lt === false ) { + // Nothing else interesting to find; abort! + // We're nested, but there's no close tags left. Abort! + break 2; + } + // Skip ahead to next tag start + $i = $lt; + $state = self::COLON_STATE_TAGSTART; + } + break; + case 1: // self::COLON_STATE_TAG: + // In a <tag> + switch( $c ) { + case ">": + $stack++; + $state = self::COLON_STATE_TEXT; + break; + case "/": + // Slash may be followed by >? + $state = self::COLON_STATE_TAGSLASH; + break; + default: + // ignore + } + break; + case 2: // self::COLON_STATE_TAGSTART: + switch( $c ) { + case "/": + $state = self::COLON_STATE_CLOSETAG; + break; + case "!": + $state = self::COLON_STATE_COMMENT; + break; + case ">": + // Illegal early close? This shouldn't happen D: + $state = self::COLON_STATE_TEXT; + break; + default: + $state = self::COLON_STATE_TAG; + } + break; + case 3: // self::COLON_STATE_CLOSETAG: + // In a </tag> + if( $c == ">" ) { + $stack--; + if( $stack < 0 ) { + wfDebug( "Invalid input in $fname; too many close tags\n" ); + wfProfileOut( $fname ); + return false; + } + $state = self::COLON_STATE_TEXT; + } + break; + case self::COLON_STATE_TAGSLASH: + if( $c == ">" ) { + // Yes, a self-closed tag <blah/> + $state = self::COLON_STATE_TEXT; + } else { + // Probably we're jumping the gun, and this is an attribute + $state = self::COLON_STATE_TAG; + } + break; + case 5: // self::COLON_STATE_COMMENT: + if( $c == "-" ) { + $state = self::COLON_STATE_COMMENTDASH; + } + break; + case self::COLON_STATE_COMMENTDASH: + if( $c == "-" ) { + $state = self::COLON_STATE_COMMENTDASHDASH; + } else { + $state = self::COLON_STATE_COMMENT; + } + break; + case self::COLON_STATE_COMMENTDASHDASH: + if( $c == ">" ) { + $state = self::COLON_STATE_TEXT; + } else { + $state = self::COLON_STATE_COMMENT; + } + break; + default: + throw new MWException( "State machine error in $fname" ); + } + } + if( $stack > 0 ) { + wfDebug( "Invalid input in $fname; not enough close tags (stack $stack, state $state)\n" ); + return false; + } + wfProfileOut( $fname ); + return false; + } + + /** + * Return value of a magic variable (like PAGENAME) + * + * @private + */ + function getVariableValue( $index ) { + global $wgContLang, $wgSitename, $wgServer, $wgServerName, $wgScriptPath; + + /** + * Some of these require message or data lookups and can be + * expensive to check many times. + */ + static $varCache = array(); + if ( wfRunHooks( 'ParserGetVariableValueVarCache', array( &$this, &$varCache ) ) ) { + if ( isset( $varCache[$index] ) ) { + return $varCache[$index]; + } + } + + $ts = time(); + wfRunHooks( 'ParserGetVariableValueTs', array( &$this, &$ts ) ); + + # Use the time zone + global $wgLocaltimezone; + if ( isset( $wgLocaltimezone ) ) { + $oldtz = getenv( 'TZ' ); + putenv( 'TZ='.$wgLocaltimezone ); + } + + wfSuppressWarnings(); // E_STRICT system time bitching + $localTimestamp = date( 'YmdHis', $ts ); + $localMonth = date( 'm', $ts ); + $localMonthName = date( 'n', $ts ); + $localDay = date( 'j', $ts ); + $localDay2 = date( 'd', $ts ); + $localDayOfWeek = date( 'w', $ts ); + $localWeek = date( 'W', $ts ); + $localYear = date( 'Y', $ts ); + $localHour = date( 'H', $ts ); + if ( isset( $wgLocaltimezone ) ) { + putenv( 'TZ='.$oldtz ); + } + wfRestoreWarnings(); + + switch ( $index ) { + case 'currentmonth': + return $varCache[$index] = $wgContLang->formatNum( gmdate( 'm', $ts ) ); + case 'currentmonthname': + return $varCache[$index] = $wgContLang->getMonthName( gmdate( 'n', $ts ) ); + case 'currentmonthnamegen': + return $varCache[$index] = $wgContLang->getMonthNameGen( gmdate( 'n', $ts ) ); + case 'currentmonthabbrev': + return $varCache[$index] = $wgContLang->getMonthAbbreviation( gmdate( 'n', $ts ) ); + case 'currentday': + return $varCache[$index] = $wgContLang->formatNum( gmdate( 'j', $ts ) ); + case 'currentday2': + return $varCache[$index] = $wgContLang->formatNum( gmdate( 'd', $ts ) ); + case 'localmonth': + return $varCache[$index] = $wgContLang->formatNum( $localMonth ); + case 'localmonthname': + return $varCache[$index] = $wgContLang->getMonthName( $localMonthName ); + case 'localmonthnamegen': + return $varCache[$index] = $wgContLang->getMonthNameGen( $localMonthName ); + case 'localmonthabbrev': + return $varCache[$index] = $wgContLang->getMonthAbbreviation( $localMonthName ); + case 'localday': + return $varCache[$index] = $wgContLang->formatNum( $localDay ); + case 'localday2': + return $varCache[$index] = $wgContLang->formatNum( $localDay2 ); + case 'pagename': + return wfEscapeWikiText( $this->mTitle->getText() ); + case 'pagenamee': + return $this->mTitle->getPartialURL(); + case 'fullpagename': + return wfEscapeWikiText( $this->mTitle->getPrefixedText() ); + case 'fullpagenamee': + return $this->mTitle->getPrefixedURL(); + case 'subpagename': + return wfEscapeWikiText( $this->mTitle->getSubpageText() ); + case 'subpagenamee': + return $this->mTitle->getSubpageUrlForm(); + case 'basepagename': + return wfEscapeWikiText( $this->mTitle->getBaseText() ); + case 'basepagenamee': + return wfUrlEncode( str_replace( ' ', '_', $this->mTitle->getBaseText() ) ); + case 'talkpagename': + if( $this->mTitle->canTalk() ) { + $talkPage = $this->mTitle->getTalkPage(); + return wfEscapeWikiText( $talkPage->getPrefixedText() ); + } else { + return ''; + } + case 'talkpagenamee': + if( $this->mTitle->canTalk() ) { + $talkPage = $this->mTitle->getTalkPage(); + return $talkPage->getPrefixedUrl(); + } else { + return ''; + } + case 'subjectpagename': + $subjPage = $this->mTitle->getSubjectPage(); + return wfEscapeWikiText( $subjPage->getPrefixedText() ); + case 'subjectpagenamee': + $subjPage = $this->mTitle->getSubjectPage(); + return $subjPage->getPrefixedUrl(); + case 'revisionid': + return $this->mRevisionId; + case 'revisionday': + return intval( substr( $this->getRevisionTimestamp(), 6, 2 ) ); + case 'revisionday2': + return substr( $this->getRevisionTimestamp(), 6, 2 ); + case 'revisionmonth': + return intval( substr( $this->getRevisionTimestamp(), 4, 2 ) ); + case 'revisionyear': + return substr( $this->getRevisionTimestamp(), 0, 4 ); + case 'revisiontimestamp': + return $this->getRevisionTimestamp(); + case 'namespace': + return str_replace('_',' ',$wgContLang->getNsText( $this->mTitle->getNamespace() ) ); + case 'namespacee': + return wfUrlencode( $wgContLang->getNsText( $this->mTitle->getNamespace() ) ); + case 'talkspace': + return $this->mTitle->canTalk() ? str_replace('_',' ',$this->mTitle->getTalkNsText()) : ''; + case 'talkspacee': + return $this->mTitle->canTalk() ? wfUrlencode( $this->mTitle->getTalkNsText() ) : ''; + case 'subjectspace': + return $this->mTitle->getSubjectNsText(); + case 'subjectspacee': + return( wfUrlencode( $this->mTitle->getSubjectNsText() ) ); + case 'currentdayname': + return $varCache[$index] = $wgContLang->getWeekdayName( gmdate( 'w', $ts ) + 1 ); + case 'currentyear': + return $varCache[$index] = $wgContLang->formatNum( gmdate( 'Y', $ts ), true ); + case 'currenttime': + return $varCache[$index] = $wgContLang->time( wfTimestamp( TS_MW, $ts ), false, false ); + case 'currenthour': + return $varCache[$index] = $wgContLang->formatNum( gmdate( 'H', $ts ), true ); + case 'currentweek': + // @bug 4594 PHP5 has it zero padded, PHP4 does not, cast to + // int to remove the padding + return $varCache[$index] = $wgContLang->formatNum( (int)gmdate( 'W', $ts ) ); + case 'currentdow': + return $varCache[$index] = $wgContLang->formatNum( gmdate( 'w', $ts ) ); + case 'localdayname': + return $varCache[$index] = $wgContLang->getWeekdayName( $localDayOfWeek + 1 ); + case 'localyear': + return $varCache[$index] = $wgContLang->formatNum( $localYear, true ); + case 'localtime': + return $varCache[$index] = $wgContLang->time( $localTimestamp, false, false ); + case 'localhour': + return $varCache[$index] = $wgContLang->formatNum( $localHour, true ); + case 'localweek': + // @bug 4594 PHP5 has it zero padded, PHP4 does not, cast to + // int to remove the padding + return $varCache[$index] = $wgContLang->formatNum( (int)$localWeek ); + case 'localdow': + return $varCache[$index] = $wgContLang->formatNum( $localDayOfWeek ); + case 'numberofarticles': + return $varCache[$index] = $wgContLang->formatNum( SiteStats::articles() ); + case 'numberoffiles': + return $varCache[$index] = $wgContLang->formatNum( SiteStats::images() ); + case 'numberofusers': + return $varCache[$index] = $wgContLang->formatNum( SiteStats::users() ); + case 'numberofpages': + return $varCache[$index] = $wgContLang->formatNum( SiteStats::pages() ); + case 'numberofadmins': + return $varCache[$index] = $wgContLang->formatNum( SiteStats::admins() ); + case 'numberofedits': + return $varCache[$index] = $wgContLang->formatNum( SiteStats::edits() ); + case 'currenttimestamp': + return $varCache[$index] = wfTimestampNow(); + case 'localtimestamp': + return $varCache[$index] = $localTimestamp; + case 'currentversion': + return $varCache[$index] = SpecialVersion::getVersion(); + case 'sitename': + return $wgSitename; + case 'server': + return $wgServer; + case 'servername': + return $wgServerName; + case 'scriptpath': + return $wgScriptPath; + case 'directionmark': + return $wgContLang->getDirMark(); + case 'contentlanguage': + global $wgContLanguageCode; + return $wgContLanguageCode; + default: + $ret = null; + if ( wfRunHooks( 'ParserGetVariableValueSwitch', array( &$this, &$varCache, &$index, &$ret ) ) ) + return $ret; + else + return null; + } + } + + /** + * initialise the magic variables (like CURRENTMONTHNAME) + * + * @private + */ + function initialiseVariables() { + $fname = 'Parser::initialiseVariables'; + wfProfileIn( $fname ); + $variableIDs = MagicWord::getVariableIDs(); + + $this->mVariables = array(); + foreach ( $variableIDs as $id ) { + $mw =& MagicWord::get( $id ); + $mw->addToArray( $this->mVariables, $id ); + } + wfProfileOut( $fname ); + } + + /** + * parse any parentheses in format ((title|part|part)) + * and call callbacks to get a replacement text for any found piece + * + * @param string $text The text to parse + * @param array $callbacks rules in form: + * '{' => array( # opening parentheses + * 'end' => '}', # closing parentheses + * 'cb' => array(2 => callback, # replacement callback to call if {{..}} is found + * 3 => callback # replacement callback to call if {{{..}}} is found + * ) + * ) + * 'min' => 2, # Minimum parenthesis count in cb + * 'max' => 3, # Maximum parenthesis count in cb + * @private + */ + function replace_callback ($text, $callbacks) { + wfProfileIn( __METHOD__ ); + $openingBraceStack = array(); # this array will hold a stack of parentheses which are not closed yet + $lastOpeningBrace = -1; # last not closed parentheses + + $validOpeningBraces = implode( '', array_keys( $callbacks ) ); + + $i = 0; + while ( $i < strlen( $text ) ) { + # Find next opening brace, closing brace or pipe + if ( $lastOpeningBrace == -1 ) { + $currentClosing = ''; + $search = $validOpeningBraces; + } else { + $currentClosing = $openingBraceStack[$lastOpeningBrace]['braceEnd']; + $search = $validOpeningBraces . '|' . $currentClosing; + } + $rule = null; + $i += strcspn( $text, $search, $i ); + if ( $i < strlen( $text ) ) { + if ( $text[$i] == '|' ) { + $found = 'pipe'; + } elseif ( $text[$i] == $currentClosing ) { + $found = 'close'; + } elseif ( isset( $callbacks[$text[$i]] ) ) { + $found = 'open'; + $rule = $callbacks[$text[$i]]; + } else { + # Some versions of PHP have a strcspn which stops on null characters + # Ignore and continue + ++$i; + continue; + } + } else { + # All done + break; + } + + if ( $found == 'open' ) { + # found opening brace, let's add it to parentheses stack + $piece = array('brace' => $text[$i], + 'braceEnd' => $rule['end'], + 'title' => '', + 'parts' => null); + + # count opening brace characters + $piece['count'] = strspn( $text, $piece['brace'], $i ); + $piece['startAt'] = $piece['partStart'] = $i + $piece['count']; + $i += $piece['count']; + + # we need to add to stack only if opening brace count is enough for one of the rules + if ( $piece['count'] >= $rule['min'] ) { + $lastOpeningBrace ++; + $openingBraceStack[$lastOpeningBrace] = $piece; + } + } elseif ( $found == 'close' ) { + # lets check if it is enough characters for closing brace + $maxCount = $openingBraceStack[$lastOpeningBrace]['count']; + $count = strspn( $text, $text[$i], $i, $maxCount ); + + # check for maximum matching characters (if there are 5 closing + # characters, we will probably need only 3 - depending on the rules) + $matchingCount = 0; + $matchingCallback = null; + $cbType = $callbacks[$openingBraceStack[$lastOpeningBrace]['brace']]; + if ( $count > $cbType['max'] ) { + # The specified maximum exists in the callback array, unless the caller + # has made an error + $matchingCount = $cbType['max']; + } else { + # Count is less than the maximum + # Skip any gaps in the callback array to find the true largest match + # Need to use array_key_exists not isset because the callback can be null + $matchingCount = $count; + while ( $matchingCount > 0 && !array_key_exists( $matchingCount, $cbType['cb'] ) ) { + --$matchingCount; + } + } + + if ($matchingCount <= 0) { + $i += $count; + continue; + } + $matchingCallback = $cbType['cb'][$matchingCount]; + + # let's set a title or last part (if '|' was found) + if (null === $openingBraceStack[$lastOpeningBrace]['parts']) { + $openingBraceStack[$lastOpeningBrace]['title'] = + substr($text, $openingBraceStack[$lastOpeningBrace]['partStart'], + $i - $openingBraceStack[$lastOpeningBrace]['partStart']); + } else { + $openingBraceStack[$lastOpeningBrace]['parts'][] = + substr($text, $openingBraceStack[$lastOpeningBrace]['partStart'], + $i - $openingBraceStack[$lastOpeningBrace]['partStart']); + } + + $pieceStart = $openingBraceStack[$lastOpeningBrace]['startAt'] - $matchingCount; + $pieceEnd = $i + $matchingCount; + + if( is_callable( $matchingCallback ) ) { + $cbArgs = array ( + 'text' => substr($text, $pieceStart, $pieceEnd - $pieceStart), + 'title' => trim($openingBraceStack[$lastOpeningBrace]['title']), + 'parts' => $openingBraceStack[$lastOpeningBrace]['parts'], + 'lineStart' => (($pieceStart > 0) && ($text[$pieceStart-1] == "\n")), + ); + # finally we can call a user callback and replace piece of text + $replaceWith = call_user_func( $matchingCallback, $cbArgs ); + $text = substr($text, 0, $pieceStart) . $replaceWith . substr($text, $pieceEnd); + $i = $pieceStart + strlen($replaceWith); + } else { + # null value for callback means that parentheses should be parsed, but not replaced + $i += $matchingCount; + } + + # reset last opening parentheses, but keep it in case there are unused characters + $piece = array('brace' => $openingBraceStack[$lastOpeningBrace]['brace'], + 'braceEnd' => $openingBraceStack[$lastOpeningBrace]['braceEnd'], + 'count' => $openingBraceStack[$lastOpeningBrace]['count'], + 'title' => '', + 'parts' => null, + 'startAt' => $openingBraceStack[$lastOpeningBrace]['startAt']); + $openingBraceStack[$lastOpeningBrace--] = null; + + if ($matchingCount < $piece['count']) { + $piece['count'] -= $matchingCount; + $piece['startAt'] -= $matchingCount; + $piece['partStart'] = $piece['startAt']; + # do we still qualify for any callback with remaining count? + $currentCbList = $callbacks[$piece['brace']]['cb']; + while ( $piece['count'] ) { + if ( array_key_exists( $piece['count'], $currentCbList ) ) { + $lastOpeningBrace++; + $openingBraceStack[$lastOpeningBrace] = $piece; + break; + } + --$piece['count']; + } + } + } elseif ( $found == 'pipe' ) { + # lets set a title if it is a first separator, or next part otherwise + if (null === $openingBraceStack[$lastOpeningBrace]['parts']) { + $openingBraceStack[$lastOpeningBrace]['title'] = + substr($text, $openingBraceStack[$lastOpeningBrace]['partStart'], + $i - $openingBraceStack[$lastOpeningBrace]['partStart']); + $openingBraceStack[$lastOpeningBrace]['parts'] = array(); + } else { + $openingBraceStack[$lastOpeningBrace]['parts'][] = + substr($text, $openingBraceStack[$lastOpeningBrace]['partStart'], + $i - $openingBraceStack[$lastOpeningBrace]['partStart']); + } + $openingBraceStack[$lastOpeningBrace]['partStart'] = ++$i; + } + } + + wfProfileOut( __METHOD__ ); + return $text; + } + + /** + * Replace magic variables, templates, and template arguments + * with the appropriate text. Templates are substituted recursively, + * taking care to avoid infinite loops. + * + * Note that the substitution depends on value of $mOutputType: + * self::OT_WIKI: only {{subst:}} templates + * self::OT_MSG: only magic variables + * self::OT_HTML: all templates and magic variables + * + * @param string $tex The text to transform + * @param array $args Key-value pairs representing template parameters to substitute + * @param bool $argsOnly Only do argument (triple-brace) expansion, not double-brace expansion + * @private + */ + function replaceVariables( $text, $args = array(), $argsOnly = false ) { + # Prevent too big inclusions + if( strlen( $text ) > $this->mOptions->getMaxIncludeSize() ) { + return $text; + } + + $fname = __METHOD__ /*. '-L' . count( $this->mArgStack )*/; + wfProfileIn( $fname ); + + # This function is called recursively. To keep track of arguments we need a stack: + array_push( $this->mArgStack, $args ); + + $braceCallbacks = array(); + if ( !$argsOnly ) { + $braceCallbacks[2] = array( &$this, 'braceSubstitution' ); + } + if ( $this->mOutputType != self::OT_MSG ) { + $braceCallbacks[3] = array( &$this, 'argSubstitution' ); + } + if ( $braceCallbacks ) { + $callbacks = array( + '{' => array( + 'end' => '}', + 'cb' => $braceCallbacks, + 'min' => $argsOnly ? 3 : 2, + 'max' => isset( $braceCallbacks[3] ) ? 3 : 2, + ), + '[' => array( + 'end' => ']', + 'cb' => array(2=>null), + 'min' => 2, + 'max' => 2, + ) + ); + $text = $this->replace_callback ($text, $callbacks); + + array_pop( $this->mArgStack ); + } + wfProfileOut( $fname ); + return $text; + } + + /** + * Replace magic variables + * @private + */ + function variableSubstitution( $matches ) { + global $wgContLang; + $fname = 'Parser::variableSubstitution'; + $varname = $wgContLang->lc($matches[1]); + wfProfileIn( $fname ); + $skip = false; + if ( $this->mOutputType == self::OT_WIKI ) { + # Do only magic variables prefixed by SUBST + $mwSubst =& MagicWord::get( 'subst' ); + if (!$mwSubst->matchStartAndRemove( $varname )) + $skip = true; + # Note that if we don't substitute the variable below, + # we don't remove the {{subst:}} magic word, in case + # it is a template rather than a magic variable. + } + if ( !$skip && array_key_exists( $varname, $this->mVariables ) ) { + $id = $this->mVariables[$varname]; + # Now check if we did really match, case sensitive or not + $mw =& MagicWord::get( $id ); + if ($mw->match($matches[1])) { + $text = $this->getVariableValue( $id ); + if (MagicWord::getCacheTTL($id)>-1) + $this->mOutput->mContainsOldMagic = true; + } else { + $text = $matches[0]; + } + } else { + $text = $matches[0]; + } + wfProfileOut( $fname ); + return $text; + } + + + /// Clean up argument array - refactored in 1.9 so parserfunctions can use it, too. + static function createAssocArgs( $args ) { + $assocArgs = array(); + $index = 1; + foreach( $args as $arg ) { + $eqpos = strpos( $arg, '=' ); + if ( $eqpos === false ) { + $assocArgs[$index++] = $arg; + } else { + $name = trim( substr( $arg, 0, $eqpos ) ); + $value = trim( substr( $arg, $eqpos+1 ) ); + if ( $value === false ) { + $value = ''; + } + if ( $name !== false ) { + $assocArgs[$name] = $value; + } + } + } + + return $assocArgs; + } + + /** + * Return the text of a template, after recursively + * replacing any variables or templates within the template. + * + * @param array $piece The parts of the template + * $piece['text']: matched text + * $piece['title']: the title, i.e. the part before the | + * $piece['parts']: the parameter array + * @return string the text of the template + * @private + */ + function braceSubstitution( $piece ) { + global $wgContLang, $wgLang, $wgAllowDisplayTitle, $wgNonincludableNamespaces; + $fname = __METHOD__ /*. '-L' . count( $this->mArgStack )*/; + wfProfileIn( $fname ); + wfProfileIn( __METHOD__.'-setup' ); + + # Flags + $found = false; # $text has been filled + $nowiki = false; # wiki markup in $text should be escaped + $noparse = false; # Unsafe HTML tags should not be stripped, etc. + $noargs = false; # Don't replace triple-brace arguments in $text + $replaceHeadings = false; # Make the edit section links go to the template not the article + $headingOffset = 0; # Skip headings when number, to account for those that weren't transcluded. + $isHTML = false; # $text is HTML, armour it against wikitext transformation + $forceRawInterwiki = false; # Force interwiki transclusion to be done in raw mode not rendered + + # Title object, where $text came from + $title = NULL; + + $linestart = ''; + + + # $part1 is the bit before the first |, and must contain only title characters + # $args is a list of arguments, starting from index 0, not including $part1 + + $titleText = $part1 = $piece['title']; + # If the third subpattern matched anything, it will start with | + + if (null == $piece['parts']) { + $replaceWith = $this->variableSubstitution (array ($piece['text'], $piece['title'])); + if ($replaceWith != $piece['text']) { + $text = $replaceWith; + $found = true; + $noparse = true; + $noargs = true; + } + } + + $args = (null == $piece['parts']) ? array() : $piece['parts']; + wfProfileOut( __METHOD__.'-setup' ); + + # SUBST + wfProfileIn( __METHOD__.'-modifiers' ); + if ( !$found ) { + $mwSubst =& MagicWord::get( 'subst' ); + if ( $mwSubst->matchStartAndRemove( $part1 ) xor $this->ot['wiki'] ) { + # One of two possibilities is true: + # 1) Found SUBST but not in the PST phase + # 2) Didn't find SUBST and in the PST phase + # In either case, return without further processing + $text = $piece['text']; + $found = true; + $noparse = true; + $noargs = true; + } + } + + # MSG, MSGNW and RAW + if ( !$found ) { + # Check for MSGNW: + $mwMsgnw =& MagicWord::get( 'msgnw' ); + if ( $mwMsgnw->matchStartAndRemove( $part1 ) ) { + $nowiki = true; + } else { + # Remove obsolete MSG: + $mwMsg =& MagicWord::get( 'msg' ); + $mwMsg->matchStartAndRemove( $part1 ); + } + + # Check for RAW: + $mwRaw =& MagicWord::get( 'raw' ); + if ( $mwRaw->matchStartAndRemove( $part1 ) ) { + $forceRawInterwiki = true; + } + } + wfProfileOut( __METHOD__.'-modifiers' ); + + //save path level before recursing into functions & templates. + $lastPathLevel = $this->mTemplatePath; + + # Parser functions + if ( !$found ) { + wfProfileIn( __METHOD__ . '-pfunc' ); + + $colonPos = strpos( $part1, ':' ); + if ( $colonPos !== false ) { + # Case sensitive functions + $function = substr( $part1, 0, $colonPos ); + if ( isset( $this->mFunctionSynonyms[1][$function] ) ) { + $function = $this->mFunctionSynonyms[1][$function]; + } else { + # Case insensitive functions + $function = strtolower( $function ); + if ( isset( $this->mFunctionSynonyms[0][$function] ) ) { + $function = $this->mFunctionSynonyms[0][$function]; + } else { + $function = false; + } + } + if ( $function ) { + $funcArgs = array_map( 'trim', $args ); + $funcArgs = array_merge( array( &$this, trim( substr( $part1, $colonPos + 1 ) ) ), $funcArgs ); + $result = call_user_func_array( $this->mFunctionHooks[$function], $funcArgs ); + $found = true; + + // The text is usually already parsed, doesn't need triple-brace tags expanded, etc. + //$noargs = true; + //$noparse = true; + + if ( is_array( $result ) ) { + if ( isset( $result[0] ) ) { + $text = $linestart . $result[0]; + unset( $result[0] ); + } + + // Extract flags into the local scope + // This allows callers to set flags such as nowiki, noparse, found, etc. + extract( $result ); + } else { + $text = $linestart . $result; + } + } + } + wfProfileOut( __METHOD__ . '-pfunc' ); + } + + # Template table test + + # Did we encounter this template already? If yes, it is in the cache + # and we need to check for loops. + if ( !$found && isset( $this->mTemplates[$piece['title']] ) ) { + $found = true; + + # Infinite loop test + if ( isset( $this->mTemplatePath[$part1] ) ) { + $noparse = true; + $noargs = true; + $found = true; + $text = $linestart . + "[[$part1]]<!-- WARNING: template loop detected -->"; + wfDebug( __METHOD__.": template loop broken at '$part1'\n" ); + } else { + # set $text to cached message. + $text = $linestart . $this->mTemplates[$piece['title']]; + #treat title for cached page the same as others + $ns = NS_TEMPLATE; + $subpage = ''; + $part1 = $this->maybeDoSubpageLink( $part1, $subpage ); + if ($subpage !== '') { + $ns = $this->mTitle->getNamespace(); + } + $title = Title::newFromText( $part1, $ns ); + //used by include size checking + $titleText = $title->getPrefixedText(); + //used by edit section links + $replaceHeadings = true; + + } + } + + # Load from database + if ( !$found ) { + wfProfileIn( __METHOD__ . '-loadtpl' ); + $ns = NS_TEMPLATE; + # declaring $subpage directly in the function call + # does not work correctly with references and breaks + # {{/subpage}}-style inclusions + $subpage = ''; + $part1 = $this->maybeDoSubpageLink( $part1, $subpage ); + if ($subpage !== '') { + $ns = $this->mTitle->getNamespace(); + } + $title = Title::newFromText( $part1, $ns ); + + + if ( !is_null( $title ) ) { + $titleText = $title->getPrefixedText(); + # Check for language variants if the template is not found + if($wgContLang->hasVariants() && $title->getArticleID() == 0){ + $wgContLang->findVariantLink($part1, $title); + } + + if ( !$title->isExternal() ) { + if ( $title->getNamespace() == NS_SPECIAL && $this->mOptions->getAllowSpecialInclusion() && $this->ot['html'] ) { + $text = SpecialPage::capturePath( $title ); + if ( is_string( $text ) ) { + $found = true; + $noparse = true; + $noargs = true; + $isHTML = true; + $this->disableCache(); + } + } else if ( $wgNonincludableNamespaces && in_array( $title->getNamespace(), $wgNonincludableNamespaces ) ) { + $found = false; //access denied + wfDebug( "$fname: template inclusion denied for " . $title->getPrefixedDBkey() ); + } else { + list($articleContent,$title) = $this->fetchTemplateAndtitle( $title ); + if ( $articleContent !== false ) { + $found = true; + $text = $articleContent; + $replaceHeadings = true; + } + } + + # If the title is valid but undisplayable, make a link to it + if ( !$found && ( $this->ot['html'] || $this->ot['pre'] ) ) { + $text = "[[:$titleText]]"; + $found = true; + } + } elseif ( $title->isTrans() ) { + // Interwiki transclusion + if ( $this->ot['html'] && !$forceRawInterwiki ) { + $text = $this->interwikiTransclude( $title, 'render' ); + $isHTML = true; + $noparse = true; + } else { + $text = $this->interwikiTransclude( $title, 'raw' ); + $replaceHeadings = true; + } + $found = true; + } + + # Template cache array insertion + # Use the original $piece['title'] not the mangled $part1, so that + # modifiers such as RAW: produce separate cache entries + if( $found ) { + if( $isHTML ) { + // A special page; don't store it in the template cache. + } else { + $this->mTemplates[$piece['title']] = $text; + } + $text = $linestart . $text; + } + } + wfProfileOut( __METHOD__ . '-loadtpl' ); + } + + if ( $found && !$this->incrementIncludeSize( 'pre-expand', strlen( $text ) ) ) { + # Error, oversize inclusion + $text = $linestart . + "[[$titleText]]<!-- WARNING: template omitted, pre-expand include size too large -->"; + $noparse = true; + $noargs = true; + } + + # Recursive parsing, escaping and link table handling + # Only for HTML output + if ( $nowiki && $found && ( $this->ot['html'] || $this->ot['pre'] ) ) { + $text = wfEscapeWikiText( $text ); + } elseif ( !$this->ot['msg'] && $found ) { + if ( $noargs ) { + $assocArgs = array(); + } else { + # Clean up argument array + $assocArgs = self::createAssocArgs($args); + # Add a new element to the templace recursion path + $this->mTemplatePath[$part1] = 1; + } + + if ( !$noparse ) { + # If there are any <onlyinclude> tags, only include them + if ( in_string( '<onlyinclude>', $text ) && in_string( '</onlyinclude>', $text ) ) { + $replacer = new OnlyIncludeReplacer; + StringUtils::delimiterReplaceCallback( '<onlyinclude>', '</onlyinclude>', + array( &$replacer, 'replace' ), $text ); + $text = $replacer->output; + } + # Remove <noinclude> sections and <includeonly> tags + $text = StringUtils::delimiterReplace( '<noinclude>', '</noinclude>', '', $text ); + $text = strtr( $text, array( '<includeonly>' => '' , '</includeonly>' => '' ) ); + + if( $this->ot['html'] || $this->ot['pre'] ) { + # Strip <nowiki>, <pre>, etc. + $text = $this->strip( $text, $this->mStripState ); + if ( $this->ot['html'] ) { + $text = Sanitizer::removeHTMLtags( $text, array( &$this, 'replaceVariables' ), $assocArgs ); + } elseif ( $this->ot['pre'] && $this->mOptions->getRemoveComments() ) { + $text = Sanitizer::removeHTMLcomments( $text ); + } + } + $text = $this->replaceVariables( $text, $assocArgs ); + + # If the template begins with a table or block-level + # element, it should be treated as beginning a new line. + if (!$piece['lineStart'] && preg_match('/^(?:{\\||:|;|#|\*)/', $text)) /*}*/{ + $text = "\n" . $text; + } + } elseif ( !$noargs ) { + # $noparse and !$noargs + # Just replace the arguments, not any double-brace items + # This is used for rendered interwiki transclusion + $text = $this->replaceVariables( $text, $assocArgs, true ); + } + } + # Prune lower levels off the recursion check path + $this->mTemplatePath = $lastPathLevel; + + if ( $found && !$this->incrementIncludeSize( 'post-expand', strlen( $text ) ) ) { + # Error, oversize inclusion + $text = $linestart . + "[[$titleText]]<!-- WARNING: template omitted, post-expand include size too large -->"; + $noparse = true; + $noargs = true; + } + + if ( !$found ) { + wfProfileOut( $fname ); + return $piece['text']; + } else { + wfProfileIn( __METHOD__ . '-placeholders' ); + if ( $isHTML ) { + # Replace raw HTML by a placeholder + # Add a blank line preceding, to prevent it from mucking up + # immediately preceding headings + $text = "\n\n" . $this->insertStripItem( $text, $this->mStripState ); + } else { + # replace ==section headers== + # XXX this needs to go away once we have a better parser. + if ( !$this->ot['wiki'] && !$this->ot['pre'] && $replaceHeadings ) { + if( !is_null( $title ) ) + $encodedname = base64_encode($title->getPrefixedDBkey()); + else + $encodedname = base64_encode(""); + $m = preg_split('/(^={1,6}.*?={1,6}\s*?$)/m', $text, -1, + PREG_SPLIT_DELIM_CAPTURE); + $text = ''; + $nsec = $headingOffset; + + for( $i = 0; $i < count($m); $i += 2 ) { + $text .= $m[$i]; + if (!isset($m[$i + 1]) || $m[$i + 1] == "") continue; + $hl = $m[$i + 1]; + if( strstr($hl, "<!--MWTEMPLATESECTION") ) { + $text .= $hl; + continue; + } + $m2 = array(); + preg_match('/^(={1,6})(.*?)(={1,6}\s*?)$/m', $hl, $m2); + $text .= $m2[1] . $m2[2] . "<!--MWTEMPLATESECTION=" + . $encodedname . "&" . base64_encode("$nsec") . "-->" . $m2[3]; + + $nsec++; + } + } + } + wfProfileOut( __METHOD__ . '-placeholders' ); + } + + # Prune lower levels off the recursion check path + $this->mTemplatePath = $lastPathLevel; + + if ( !$found ) { + wfProfileOut( $fname ); + return $piece['text']; + } else { + wfProfileOut( $fname ); + return $text; + } + } + + /** + * Fetch the unparsed text of a template and register a reference to it. + */ + function fetchTemplateAndTitle( $title ) { + $templateCb = $this->mOptions->getTemplateCallback(); + $stuff = call_user_func( $templateCb, $title ); + $text = $stuff['text']; + $finalTitle = isset( $stuff['finalTitle'] ) ? $stuff['finalTitle'] : $title; + if ( isset( $stuff['deps'] ) ) { + foreach ( $stuff['deps'] as $dep ) { + $this->mOutput->addTemplate( $dep['title'], $dep['page_id'], $dep['rev_id'] ); + } + } + return array($text,$finalTitle); + } + + function fetchTemplate( $title ) { + $rv = $this->fetchTemplateAndtitle($title); + return $rv[0]; + } + + /** + * Static function to get a template + * Can be overridden via ParserOptions::setTemplateCallback(). + * + * Returns an associative array: + * text The unparsed template text + * finalTitle (Optional) The title after following redirects + * deps (Optional) An array of associative array dependencies: + * title: The dependency title, to be registered in templatelinks + * page_id: The page_id of the title + * rev_id: The revision ID loaded + */ + static function statelessFetchTemplate( $title ) { + $text = $skip = false; + $finalTitle = $title; + $deps = array(); + + // Loop to fetch the article, with up to 1 redirect + for ( $i = 0; $i < 2 && is_object( $title ); $i++ ) { + # Give extensions a chance to select the revision instead + $id = false; // Assume current + wfRunHooks( 'BeforeParserFetchTemplateAndtitle', array( false, &$title, &$skip, &$id ) ); + + if( $skip ) { + $text = false; + $deps[] = array( + 'title' => $title, + 'page_id' => $title->getArticleID(), + 'rev_id' => null ); + break; + } + $rev = $id ? Revision::newFromId( $id ) : Revision::newFromTitle( $title ); + $rev_id = $rev ? $rev->getId() : 0; + + $deps[] = array( + 'title' => $title, + 'page_id' => $title->getArticleID(), + 'rev_id' => $rev_id ); + + if( $rev ) { + $text = $rev->getText(); + } elseif( $title->getNamespace() == NS_MEDIAWIKI ) { + global $wgLang; + $message = $wgLang->lcfirst( $title->getText() ); + $text = wfMsgForContentNoTrans( $message ); + if( wfEmptyMsg( $message, $text ) ) { + $text = false; + break; + } + } else { + break; + } + if ( $text === false ) { + break; + } + // Redirect? + $finalTitle = $title; + $title = Title::newFromRedirect( $text ); + } + return array( + 'text' => $text, + 'finalTitle' => $finalTitle, + 'deps' => $deps ); + } + + /** + * Transclude an interwiki link. + */ + function interwikiTransclude( $title, $action ) { + global $wgEnableScaryTranscluding; + + if (!$wgEnableScaryTranscluding) + return wfMsg('scarytranscludedisabled'); + + $url = $title->getFullUrl( "action=$action" ); + + if (strlen($url) > 255) + return wfMsg('scarytranscludetoolong'); + return $this->fetchScaryTemplateMaybeFromCache($url); + } + + function fetchScaryTemplateMaybeFromCache($url) { + global $wgTranscludeCacheExpiry; + $dbr = wfGetDB(DB_SLAVE); + $obj = $dbr->selectRow('transcache', array('tc_time', 'tc_contents'), + array('tc_url' => $url)); + if ($obj) { + $time = $obj->tc_time; + $text = $obj->tc_contents; + if ($time && time() < $time + $wgTranscludeCacheExpiry ) { + return $text; + } + } + + $text = Http::get($url); + if (!$text) + return wfMsg('scarytranscludefailed', $url); + + $dbw = wfGetDB(DB_MASTER); + $dbw->replace('transcache', array('tc_url'), array( + 'tc_url' => $url, + 'tc_time' => time(), + 'tc_contents' => $text)); + return $text; + } + + + /** + * Triple brace replacement -- used for template arguments + * @private + */ + function argSubstitution( $matches ) { + $arg = trim( $matches['title'] ); + $text = $matches['text']; + $inputArgs = end( $this->mArgStack ); + + if ( array_key_exists( $arg, $inputArgs ) ) { + $text = $inputArgs[$arg]; + } else if (($this->mOutputType == self::OT_HTML || $this->mOutputType == self::OT_PREPROCESS ) && + null != $matches['parts'] && count($matches['parts']) > 0) { + $text = $matches['parts'][0]; + } + if ( !$this->incrementIncludeSize( 'arg', strlen( $text ) ) ) { + $text = $matches['text'] . + '<!-- WARNING: argument omitted, expansion size too large -->'; + } + + return $text; + } + + /** + * Increment an include size counter + * + * @param string $type The type of expansion + * @param integer $size The size of the text + * @return boolean False if this inclusion would take it over the maximum, true otherwise + */ + function incrementIncludeSize( $type, $size ) { + if ( $this->mIncludeSizes[$type] + $size > $this->mOptions->getMaxIncludeSize() ) { + return false; + } else { + $this->mIncludeSizes[$type] += $size; + return true; + } + } + + /** + * Detect __NOGALLERY__ magic word and set a placeholder + */ + function stripNoGallery( &$text ) { + # if the string __NOGALLERY__ (not case-sensitive) occurs in the HTML, + # do not add TOC + $mw = MagicWord::get( 'nogallery' ); + $this->mOutput->mNoGallery = $mw->matchAndRemove( $text ) ; + } + + /** + * Find the first __TOC__ magic word and set a <!--MWTOC--> + * placeholder that will then be replaced by the real TOC in + * ->formatHeadings, this works because at this points real + * comments will have already been discarded by the sanitizer. + * + * Any additional __TOC__ magic words left over will be discarded + * as there can only be one TOC on the page. + */ + function stripToc( $text ) { + # if the string __NOTOC__ (not case-sensitive) occurs in the HTML, + # do not add TOC + $mw = MagicWord::get( 'notoc' ); + if( $mw->matchAndRemove( $text ) ) { + $this->mShowToc = false; + } + + $mw = MagicWord::get( 'toc' ); + if( $mw->match( $text ) ) { + $this->mShowToc = true; + $this->mForceTocPosition = true; + + // Set a placeholder. At the end we'll fill it in with the TOC. + $text = $mw->replace( '<!--MWTOC-->', $text, 1 ); + + // Only keep the first one. + $text = $mw->replace( '', $text ); + } + return $text; + } + + /** + * This function accomplishes several tasks: + * 1) Auto-number headings if that option is enabled + * 2) Add an [edit] link to sections for users who have enabled the option and can edit the page + * 3) Add a Table of contents on the top for users who have enabled the option + * 4) Auto-anchor headings + * + * It loops through all headlines, collects the necessary data, then splits up the + * string and re-inserts the newly formatted headlines. + * + * @param string $text + * @param boolean $isMain + * @private + */ + function formatHeadings( $text, $isMain=true ) { + global $wgMaxTocLevel, $wgContLang; + + $doNumberHeadings = $this->mOptions->getNumberHeadings(); + if( !$this->mTitle->quickUserCan( 'edit' ) ) { + $showEditLink = 0; + } else { + $showEditLink = $this->mOptions->getEditSection(); + } + + # Inhibit editsection links if requested in the page + $esw =& MagicWord::get( 'noeditsection' ); + if( $esw->matchAndRemove( $text ) ) { + $showEditLink = 0; + } + + # Get all headlines for numbering them and adding funky stuff like [edit] + # links - this is for later, but we need the number of headlines right now + $matches = array(); + $numMatches = preg_match_all( '/<H(?P<level>[1-6])(?P<attrib>.*?'.'>)(?P<header>.*?)<\/H[1-6] *>/i', $text, $matches ); + + # if there are fewer than 4 headlines in the article, do not show TOC + # unless it's been explicitly enabled. + $enoughToc = $this->mShowToc && + (($numMatches >= 4) || $this->mForceTocPosition); + + # Allow user to stipulate that a page should have a "new section" + # link added via __NEWSECTIONLINK__ + $mw =& MagicWord::get( 'newsectionlink' ); + if( $mw->matchAndRemove( $text ) ) + $this->mOutput->setNewSection( true ); + + # if the string __FORCETOC__ (not case-sensitive) occurs in the HTML, + # override above conditions and always show TOC above first header + $mw =& MagicWord::get( 'forcetoc' ); + if ($mw->matchAndRemove( $text ) ) { + $this->mShowToc = true; + $enoughToc = true; + } + + # We need this to perform operations on the HTML + $sk = $this->mOptions->getSkin(); + + # headline counter + $headlineCount = 0; + $sectionCount = 0; # headlineCount excluding template sections + $numVisible = 0; + + # Ugh .. the TOC should have neat indentation levels which can be + # passed to the skin functions. These are determined here + $toc = ''; + $full = ''; + $head = array(); + $sublevelCount = array(); + $levelCount = array(); + $toclevel = 0; + $level = 0; + $prevlevel = 0; + $toclevel = 0; + $prevtoclevel = 0; + $tocraw = array(); + + foreach( $matches[3] as $headline ) { + $istemplate = 0; + $templatetitle = ''; + $templatesection = 0; + $numbering = ''; + $mat = array(); + if (preg_match("/<!--MWTEMPLATESECTION=([^&]+)&([^_]+)-->/", $headline, $mat)) { + $istemplate = 1; + $templatetitle = base64_decode($mat[1]); + $templatesection = 1 + (int)base64_decode($mat[2]); + $headline = preg_replace("/<!--MWTEMPLATESECTION=([^&]+)&([^_]+)-->/", "", $headline); + } + + if( $toclevel ) { + $prevlevel = $level; + $prevtoclevel = $toclevel; + } + $level = $matches[1][$headlineCount]; + + if( $doNumberHeadings || $enoughToc ) { + + if ( $level > $prevlevel ) { + # Increase TOC level + $toclevel++; + $sublevelCount[$toclevel] = 0; + if( $toclevel<$wgMaxTocLevel ) { + $prevtoclevel = $toclevel; + $toc .= $sk->tocIndent(); + $numVisible++; + } + } + elseif ( $level < $prevlevel && $toclevel > 1 ) { + # Decrease TOC level, find level to jump to + + if ( $toclevel == 2 && $level <= $levelCount[1] ) { + # Can only go down to level 1 + $toclevel = 1; + } else { + for ($i = $toclevel; $i > 0; $i--) { + if ( $levelCount[$i] == $level ) { + # Found last matching level + $toclevel = $i; + break; + } + elseif ( $levelCount[$i] < $level ) { + # Found first matching level below current level + $toclevel = $i + 1; + break; + } + } + } + if( $toclevel<$wgMaxTocLevel ) { + if($prevtoclevel < $wgMaxTocLevel) { + # Unindent only if the previous toc level was shown :p + $toc .= $sk->tocUnindent( $prevtoclevel - $toclevel ); + } else { + $toc .= $sk->tocLineEnd(); + } + } + } + else { + # No change in level, end TOC line + if( $toclevel<$wgMaxTocLevel ) { + $toc .= $sk->tocLineEnd(); + } + } + + $levelCount[$toclevel] = $level; + + # count number of headlines for each level + @$sublevelCount[$toclevel]++; + $dot = 0; + for( $i = 1; $i <= $toclevel; $i++ ) { + if( !empty( $sublevelCount[$i] ) ) { + if( $dot ) { + $numbering .= '.'; + } + $numbering .= $wgContLang->formatNum( $sublevelCount[$i] ); + $dot = 1; + } + } + } + + # The canonized header is a version of the header text safe to use for links + # Avoid insertion of weird stuff like <math> by expanding the relevant sections + $canonized_headline = $this->mStripState->unstripBoth( $headline ); + + # Remove link placeholders by the link text. + # <!--LINK number--> + # turns into + # link text with suffix + $canonized_headline = preg_replace( '/<!--LINK ([0-9]*)-->/e', + "\$this->mLinkHolders['texts'][\$1]", + $canonized_headline ); + $canonized_headline = preg_replace( '/<!--IWLINK ([0-9]*)-->/e', + "\$this->mInterwikiLinkHolders['texts'][\$1]", + $canonized_headline ); + + # Strip out HTML (other than plain <sup> and <sub>: bug 8393) + $tocline = preg_replace( + array( '#<(?!/?(sup|sub)).*?'.'>#', '#<(/?(sup|sub)).*?'.'>#' ), + array( '', '<$1>'), + $canonized_headline + ); + $tocline = trim( $tocline ); + + # For the anchor, strip out HTML-y stuff period + $canonized_headline = preg_replace( '/<.*?'.'>/', '', $canonized_headline ); + $canonized_headline = trim( $canonized_headline ); + + # Save headline for section edit hint before it's escaped + $headline_hint = $canonized_headline; + $canonized_headline = Sanitizer::escapeId( $canonized_headline ); + $refers[$headlineCount] = $canonized_headline; + + # count how many in assoc. array so we can track dupes in anchors + isset( $refers[$canonized_headline] ) ? $refers[$canonized_headline]++ : $refers[$canonized_headline] = 1; + $refcount[$headlineCount]=$refers[$canonized_headline]; + + # Don't number the heading if it is the only one (looks silly) + if( $doNumberHeadings && count( $matches[3] ) > 1) { + # the two are different if the line contains a link + $headline=$numbering . ' ' . $headline; + } + + # Create the anchor for linking from the TOC to the section + $anchor = $canonized_headline; + if($refcount[$headlineCount] > 1 ) { + $anchor .= '_' . $refcount[$headlineCount]; + } + if( $enoughToc && ( !isset($wgMaxTocLevel) || $toclevel<$wgMaxTocLevel ) ) { + $toc .= $sk->tocLine($anchor, $tocline, $numbering, $toclevel); + $tocraw[] = array( 'toclevel' => $toclevel, 'level' => $level, 'line' => $tocline, 'number' => $numbering ); + } + # give headline the correct <h#> tag + if( $showEditLink && ( !$istemplate || $templatetitle !== "" ) ) { + if( $istemplate ) + $editlink = $sk->editSectionLinkForOther($templatetitle, $templatesection); + else + $editlink = $sk->editSectionLink($this->mTitle, $sectionCount+1, $headline_hint); + } else { + $editlink = ''; + } + $head[$headlineCount] = $sk->makeHeadline( $level, $matches['attrib'][$headlineCount], $anchor, $headline, $editlink ); + + $headlineCount++; + if( !$istemplate ) + $sectionCount++; + } + + $this->mOutput->setSections( $tocraw ); + + # Never ever show TOC if no headers + if( $numVisible < 1 ) { + $enoughToc = false; + } + + if( $enoughToc ) { + if( $prevtoclevel > 0 && $prevtoclevel < $wgMaxTocLevel ) { + $toc .= $sk->tocUnindent( $prevtoclevel - 1 ); + } + $toc = $sk->tocList( $toc ); + } + + # split up and insert constructed headlines + + $blocks = preg_split( '/<H[1-6].*?' . '>.*?<\/H[1-6]>/i', $text ); + $i = 0; + + foreach( $blocks as $block ) { + if( $showEditLink && $headlineCount > 0 && $i == 0 && $block != "\n" ) { + # This is the [edit] link that appears for the top block of text when + # section editing is enabled + + # Disabled because it broke block formatting + # For example, a bullet point in the top line + # $full .= $sk->editSectionLink(0); + } + $full .= $block; + if( $enoughToc && !$i && $isMain && !$this->mForceTocPosition ) { + # Top anchor now in skin + $full = $full.$toc; + } + + if( !empty( $head[$i] ) ) { + $full .= $head[$i]; + } + $i++; + } + if( $this->mForceTocPosition ) { + return str_replace( '<!--MWTOC-->', $toc, $full ); + } else { + return $full; + } + } + + /** + * Transform wiki markup when saving a page by doing \r\n -> \n + * conversion, substitting signatures, {{subst:}} templates, etc. + * + * @param string $text the text to transform + * @param Title &$title the Title object for the current article + * @param User &$user the User object describing the current user + * @param ParserOptions $options parsing options + * @param bool $clearState whether to clear the parser state first + * @return string the altered wiki markup + * @public + */ + function preSaveTransform( $text, &$title, $user, $options, $clearState = true ) { + $this->mOptions = $options; + $this->mTitle =& $title; + $this->setOutputType( self::OT_WIKI ); + + if ( $clearState ) { + $this->clearState(); + } + + $stripState = new StripState; + $pairs = array( + "\r\n" => "\n", + ); + $text = str_replace( array_keys( $pairs ), array_values( $pairs ), $text ); + $text = $this->strip( $text, $stripState, true, array( 'gallery' ) ); + $text = $this->pstPass2( $text, $stripState, $user ); + $text = $stripState->unstripBoth( $text ); + return $text; + } + + /** + * Pre-save transform helper function + * @private + */ + function pstPass2( $text, &$stripState, $user ) { + global $wgContLang, $wgLocaltimezone; + + /* Note: This is the timestamp saved as hardcoded wikitext to + * the database, we use $wgContLang here in order to give + * everyone the same signature and use the default one rather + * than the one selected in each user's preferences. + */ + if ( isset( $wgLocaltimezone ) ) { + $oldtz = getenv( 'TZ' ); + putenv( 'TZ='.$wgLocaltimezone ); + } + $d = $wgContLang->timeanddate( date( 'YmdHis' ), false, false) . + ' (' . date( 'T' ) . ')'; + if ( isset( $wgLocaltimezone ) ) { + putenv( 'TZ='.$oldtz ); + } + + # Variable replacement + # Because mOutputType is OT_WIKI, this will only process {{subst:xxx}} type tags + $text = $this->replaceVariables( $text ); + + # Strip out <nowiki> etc. added via replaceVariables + $text = $this->strip( $text, $stripState, false, array( 'gallery' ) ); + + # Signatures + $sigText = $this->getUserSig( $user ); + $text = strtr( $text, array( + '~~~~~' => $d, + '~~~~' => "$sigText $d", + '~~~' => $sigText + ) ); + + # Context links: [[|name]] and [[name (context)|]] + # + global $wgLegalTitleChars; + $tc = "[$wgLegalTitleChars]"; + $nc = '[ _0-9A-Za-z\x80-\xff]'; # Namespaces can use non-ascii! + + $p1 = "/\[\[(:?$nc+:|:|)($tc+?)( \\($tc+\\))\\|]]/"; # [[ns:page (context)|]] + $p3 = "/\[\[(:?$nc+:|:|)($tc+?)( \\($tc+\\)|)(, $tc+|)\\|]]/"; # [[ns:page (context), context|]] + $p2 = "/\[\[\\|($tc+)]]/"; # [[|page]] + + # try $p1 first, to turn "[[A, B (C)|]]" into "[[A, B (C)|A, B]]" + $text = preg_replace( $p1, '[[\\1\\2\\3|\\2]]', $text ); + $text = preg_replace( $p3, '[[\\1\\2\\3\\4|\\2]]', $text ); + + $t = $this->mTitle->getText(); + $m = array(); + if ( preg_match( "/^($nc+:|)$tc+?( \\($tc+\\))$/", $t, $m ) ) { + $text = preg_replace( $p2, "[[$m[1]\\1$m[2]|\\1]]", $text ); + } elseif ( preg_match( "/^($nc+:|)$tc+?(, $tc+|)$/", $t, $m ) && '' != "$m[1]$m[2]" ) { + $text = preg_replace( $p2, "[[$m[1]\\1$m[2]|\\1]]", $text ); + } else { + # if there's no context, don't bother duplicating the title + $text = preg_replace( $p2, '[[\\1]]', $text ); + } + + # Trim trailing whitespace + $text = rtrim( $text ); + + return $text; + } + + /** + * Fetch the user's signature text, if any, and normalize to + * validated, ready-to-insert wikitext. + * + * @param User $user + * @return string + * @private + */ + function getUserSig( &$user ) { + global $wgMaxSigChars; + + $username = $user->getName(); + $nickname = $user->getOption( 'nickname' ); + $nickname = $nickname === '' ? $username : $nickname; + + if( mb_strlen( $nickname ) > $wgMaxSigChars ) { + $nickname = $username; + wfDebug( __METHOD__ . ": $username has overlong signature.\n" ); + } elseif( $user->getBoolOption( 'fancysig' ) !== false ) { + # Sig. might contain markup; validate this + if( $this->validateSig( $nickname ) !== false ) { + # Validated; clean up (if needed) and return it + return $this->cleanSig( $nickname, true ); + } else { + # Failed to validate; fall back to the default + $nickname = $username; + wfDebug( "Parser::getUserSig: $username has bad XML tags in signature.\n" ); + } + } + + // Make sure nickname doesnt get a sig in a sig + $nickname = $this->cleanSigInSig( $nickname ); + + # If we're still here, make it a link to the user page + $userText = wfEscapeWikiText( $username ); + $nickText = wfEscapeWikiText( $nickname ); + if ( $user->isAnon() ) { + return wfMsgExt( 'signature-anon', array( 'content', 'parsemag' ), $userText, $nickText ); + } else { + return wfMsgExt( 'signature', array( 'content', 'parsemag' ), $userText, $nickText ); + } + } + + /** + * Check that the user's signature contains no bad XML + * + * @param string $text + * @return mixed An expanded string, or false if invalid. + */ + function validateSig( $text ) { + return( wfIsWellFormedXmlFragment( $text ) ? $text : false ); + } + + /** + * Clean up signature text + * + * 1) Strip ~~~, ~~~~ and ~~~~~ out of signatures @see cleanSigInSig + * 2) Substitute all transclusions + * + * @param string $text + * @param $parsing Whether we're cleaning (preferences save) or parsing + * @return string Signature text + */ + function cleanSig( $text, $parsing = false ) { + global $wgTitle; + $this->startExternalParse( $this->mTitle, new ParserOptions(), $parsing ? self::OT_WIKI : self::OT_MSG ); + + $substWord = MagicWord::get( 'subst' ); + $substRegex = '/\{\{(?!(?:' . $substWord->getBaseRegex() . '))/x' . $substWord->getRegexCase(); + $substText = '{{' . $substWord->getSynonym( 0 ); + + $text = preg_replace( $substRegex, $substText, $text ); + $text = $this->cleanSigInSig( $text ); + $text = $this->replaceVariables( $text ); + + $this->clearState(); + return $text; + } + + /** + * Strip ~~~, ~~~~ and ~~~~~ out of signatures + * @param string $text + * @return string Signature text with /~{3,5}/ removed + */ + function cleanSigInSig( $text ) { + $text = preg_replace( '/~{3,5}/', '', $text ); + return $text; + } + + /** + * Set up some variables which are usually set up in parse() + * so that an external function can call some class members with confidence + * @public + */ + function startExternalParse( &$title, $options, $outputType, $clearState = true ) { + $this->mTitle =& $title; + $this->mOptions = $options; + $this->setOutputType( $outputType ); + if ( $clearState ) { + $this->clearState(); + } + } + + /** + * Transform a MediaWiki message by replacing magic variables. + * + * @param string $text the text to transform + * @param ParserOptions $options options + * @return string the text with variables substituted + * @public + */ + function transformMsg( $text, $options ) { + global $wgTitle; + static $executing = false; + + $fname = "Parser::transformMsg"; + + # Guard against infinite recursion + if ( $executing ) { + return $text; + } + $executing = true; + + wfProfileIn($fname); + + if ( $wgTitle && !( $wgTitle instanceof FakeTitle ) ) { + $this->mTitle = $wgTitle; + } else { + $this->mTitle = Title::newFromText('msg'); + } + $this->mOptions = $options; + $this->setOutputType( self::OT_MSG ); + $this->clearState(); + $text = $this->replaceVariables( $text ); + + $executing = false; + wfProfileOut($fname); + return $text; + } + + /** + * Create an HTML-style tag, e.g. <yourtag>special text</yourtag> + * The callback should have the following form: + * function myParserHook( $text, $params, &$parser ) { ... } + * + * Transform and return $text. Use $parser for any required context, e.g. use + * $parser->getTitle() and $parser->getOptions() not $wgTitle or $wgOut->mParserOptions + * + * @public + * + * @param mixed $tag The tag to use, e.g. 'hook' for <hook> + * @param mixed $callback The callback function (and object) to use for the tag + * + * @return The old value of the mTagHooks array associated with the hook + */ + function setHook( $tag, $callback ) { + $tag = strtolower( $tag ); + $oldVal = isset( $this->mTagHooks[$tag] ) ? $this->mTagHooks[$tag] : null; + $this->mTagHooks[$tag] = $callback; + + return $oldVal; + } + + function setTransparentTagHook( $tag, $callback ) { + $tag = strtolower( $tag ); + $oldVal = isset( $this->mTransparentTagHooks[$tag] ) ? $this->mTransparentTagHooks[$tag] : null; + $this->mTransparentTagHooks[$tag] = $callback; + + return $oldVal; + } + + /** + * Create a function, e.g. {{sum:1|2|3}} + * The callback function should have the form: + * function myParserFunction( &$parser, $arg1, $arg2, $arg3 ) { ... } + * + * The callback may either return the text result of the function, or an array with the text + * in element 0, and a number of flags in the other elements. The names of the flags are + * specified in the keys. Valid flags are: + * found The text returned is valid, stop processing the template. This + * is on by default. + * nowiki Wiki markup in the return value should be escaped + * noparse Unsafe HTML tags should not be stripped, etc. + * noargs Don't replace triple-brace arguments in the return value + * isHTML The returned text is HTML, armour it against wikitext transformation + * + * @public + * + * @param string $id The magic word ID + * @param mixed $callback The callback function (and object) to use + * @param integer $flags a combination of the following flags: + * SFH_NO_HASH No leading hash, i.e. {{plural:...}} instead of {{#if:...}} + * + * @return The old callback function for this name, if any + */ + function setFunctionHook( $id, $callback, $flags = 0 ) { + $oldVal = isset( $this->mFunctionHooks[$id] ) ? $this->mFunctionHooks[$id] : null; + $this->mFunctionHooks[$id] = $callback; + + # Add to function cache + $mw = MagicWord::get( $id ); + if( !$mw ) + throw new MWException( 'Parser::setFunctionHook() expecting a magic word identifier.' ); + + $synonyms = $mw->getSynonyms(); + $sensitive = intval( $mw->isCaseSensitive() ); + + foreach ( $synonyms as $syn ) { + # Case + if ( !$sensitive ) { + $syn = strtolower( $syn ); + } + # Add leading hash + if ( !( $flags & SFH_NO_HASH ) ) { + $syn = '#' . $syn; + } + # Remove trailing colon + if ( substr( $syn, -1, 1 ) == ':' ) { + $syn = substr( $syn, 0, -1 ); + } + $this->mFunctionSynonyms[$sensitive][$syn] = $id; + } + return $oldVal; + } + + /** + * Get all registered function hook identifiers + * + * @return array + */ + function getFunctionHooks() { + return array_keys( $this->mFunctionHooks ); + } + + /** + * Replace <!--LINK--> link placeholders with actual links, in the buffer + * Placeholders created in Skin::makeLinkObj() + * Returns an array of links found, indexed by PDBK: + * 0 - broken + * 1 - normal link + * 2 - stub + * $options is a bit field, RLH_FOR_UPDATE to select for update + */ + function replaceLinkHolders( &$text, $options = 0 ) { + global $wgUser; + global $wgContLang; + + $fname = 'Parser::replaceLinkHolders'; + wfProfileIn( $fname ); + + $pdbks = array(); + $colours = array(); + $sk = $this->mOptions->getSkin(); + $linkCache =& LinkCache::singleton(); + + if ( !empty( $this->mLinkHolders['namespaces'] ) ) { + wfProfileIn( $fname.'-check' ); + $dbr = wfGetDB( DB_SLAVE ); + $page = $dbr->tableName( 'page' ); + $threshold = $wgUser->getOption('stubthreshold'); + + # Sort by namespace + asort( $this->mLinkHolders['namespaces'] ); + + # Generate query + $query = false; + $current = null; + foreach ( $this->mLinkHolders['namespaces'] as $key => $ns ) { + # Make title object + $title = $this->mLinkHolders['titles'][$key]; + + # Skip invalid entries. + # Result will be ugly, but prevents crash. + if ( is_null( $title ) ) { + continue; + } + $pdbk = $pdbks[$key] = $title->getPrefixedDBkey(); + + # Check if it's a static known link, e.g. interwiki + if ( $title->isAlwaysKnown() ) { + $colours[$pdbk] = 1; + } elseif ( ( $id = $linkCache->getGoodLinkID( $pdbk ) ) != 0 ) { + $colours[$pdbk] = 1; + $this->mOutput->addLink( $title, $id ); + } elseif ( $linkCache->isBadLink( $pdbk ) ) { + $colours[$pdbk] = 0; + } elseif ( $title->getNamespace() == NS_SPECIAL && !SpecialPage::exists( $pdbk ) ) { + $colours[$pdbk] = 0; + } else { + # Not in the link cache, add it to the query + if ( !isset( $current ) ) { + $current = $ns; + $query = "SELECT page_id, page_namespace, page_title"; + if ( $threshold > 0 ) { + $query .= ', page_len, page_is_redirect'; + } + $query .= " FROM $page WHERE (page_namespace=$ns AND page_title IN("; + } elseif ( $current != $ns ) { + $current = $ns; + $query .= ")) OR (page_namespace=$ns AND page_title IN("; + } else { + $query .= ', '; + } + + $query .= $dbr->addQuotes( $this->mLinkHolders['dbkeys'][$key] ); + } + } + if ( $query ) { + $query .= '))'; + if ( $options & RLH_FOR_UPDATE ) { + $query .= ' FOR UPDATE'; + } + + $res = $dbr->query( $query, $fname ); + + # Fetch data and form into an associative array + # non-existent = broken + # 1 = known + # 2 = stub + while ( $s = $dbr->fetchObject($res) ) { + $title = Title::makeTitle( $s->page_namespace, $s->page_title ); + $pdbk = $title->getPrefixedDBkey(); + $linkCache->addGoodLinkObj( $s->page_id, $title ); + $this->mOutput->addLink( $title, $s->page_id ); + + $colours[$pdbk] = ( $threshold == 0 || ( + $s->page_len >= $threshold || # always true if $threshold <= 0 + $s->page_is_redirect || + !Namespace::isContent( $s->page_namespace ) ) + ? 1 : 2 ); + } + } + wfProfileOut( $fname.'-check' ); + + # Do a second query for different language variants of links and categories + if($wgContLang->hasVariants()){ + $linkBatch = new LinkBatch(); + $variantMap = array(); // maps $pdbkey_Variant => $keys (of link holders) + $categoryMap = array(); // maps $category_variant => $category (dbkeys) + $varCategories = array(); // category replacements oldDBkey => newDBkey + + $categories = $this->mOutput->getCategoryLinks(); + + // Add variants of links to link batch + foreach ( $this->mLinkHolders['namespaces'] as $key => $ns ) { + $title = $this->mLinkHolders['titles'][$key]; + if ( is_null( $title ) ) + continue; + + $pdbk = $title->getPrefixedDBkey(); + $titleText = $title->getText(); + + // generate all variants of the link title text + $allTextVariants = $wgContLang->convertLinkToAllVariants($titleText); + + // if link was not found (in first query), add all variants to query + if ( !isset($colours[$pdbk]) ){ + foreach($allTextVariants as $textVariant){ + if($textVariant != $titleText){ + $variantTitle = Title::makeTitle( $ns, $textVariant ); + if(is_null($variantTitle)) continue; + $linkBatch->addObj( $variantTitle ); + $variantMap[$variantTitle->getPrefixedDBkey()][] = $key; + } + } + } + } + + // process categories, check if a category exists in some variant + foreach( $categories as $category ){ + $variants = $wgContLang->convertLinkToAllVariants($category); + foreach($variants as $variant){ + if($variant != $category){ + $variantTitle = Title::newFromDBkey( Title::makeName(NS_CATEGORY,$variant) ); + if(is_null($variantTitle)) continue; + $linkBatch->addObj( $variantTitle ); + $categoryMap[$variant] = $category; + } + } + } + + + if(!$linkBatch->isEmpty()){ + // construct query + $titleClause = $linkBatch->constructSet('page', $dbr); + + $variantQuery = "SELECT page_id, page_namespace, page_title"; + if ( $threshold > 0 ) { + $variantQuery .= ', page_len, page_is_redirect'; + } + + $variantQuery .= " FROM $page WHERE $titleClause"; + if ( $options & RLH_FOR_UPDATE ) { + $variantQuery .= ' FOR UPDATE'; + } + + $varRes = $dbr->query( $variantQuery, $fname ); + + // for each found variants, figure out link holders and replace + while ( $s = $dbr->fetchObject($varRes) ) { + + $variantTitle = Title::makeTitle( $s->page_namespace, $s->page_title ); + $varPdbk = $variantTitle->getPrefixedDBkey(); + $vardbk = $variantTitle->getDBkey(); + + $holderKeys = array(); + if(isset($variantMap[$varPdbk])){ + $holderKeys = $variantMap[$varPdbk]; + $linkCache->addGoodLinkObj( $s->page_id, $variantTitle ); + $this->mOutput->addLink( $variantTitle, $s->page_id ); + } + + // loop over link holders + foreach($holderKeys as $key){ + $title = $this->mLinkHolders['titles'][$key]; + if ( is_null( $title ) ) continue; + + $pdbk = $title->getPrefixedDBkey(); + + if(!isset($colours[$pdbk])){ + // found link in some of the variants, replace the link holder data + $this->mLinkHolders['titles'][$key] = $variantTitle; + $this->mLinkHolders['dbkeys'][$key] = $variantTitle->getDBkey(); + + // set pdbk and colour + $pdbks[$key] = $varPdbk; + if ( $threshold > 0 ) { + $size = $s->page_len; + if ( $s->page_is_redirect || $s->page_namespace != 0 || $size >= $threshold ) { + $colours[$varPdbk] = 1; + } else { + $colours[$varPdbk] = 2; + } + } + else { + $colours[$varPdbk] = 1; + } + } + } + + // check if the object is a variant of a category + if(isset($categoryMap[$vardbk])){ + $oldkey = $categoryMap[$vardbk]; + if($oldkey != $vardbk) + $varCategories[$oldkey]=$vardbk; + } + } + + // rebuild the categories in original order (if there are replacements) + if(count($varCategories)>0){ + $newCats = array(); + $originalCats = $this->mOutput->getCategories(); + foreach($originalCats as $cat => $sortkey){ + // make the replacement + if( array_key_exists($cat,$varCategories) ) + $newCats[$varCategories[$cat]] = $sortkey; + else $newCats[$cat] = $sortkey; + } + $this->mOutput->setCategoryLinks($newCats); + } + } + } + + # Construct search and replace arrays + wfProfileIn( $fname.'-construct' ); + $replacePairs = array(); + foreach ( $this->mLinkHolders['namespaces'] as $key => $ns ) { + $pdbk = $pdbks[$key]; + $searchkey = "<!--LINK $key-->"; + $title = $this->mLinkHolders['titles'][$key]; + if ( empty( $colours[$pdbk] ) ) { + $linkCache->addBadLinkObj( $title ); + $colours[$pdbk] = 0; + $this->mOutput->addLink( $title, 0 ); + $replacePairs[$searchkey] = $sk->makeBrokenLinkObj( $title, + $this->mLinkHolders['texts'][$key], + $this->mLinkHolders['queries'][$key] ); + } elseif ( $colours[$pdbk] == 1 ) { + $replacePairs[$searchkey] = $sk->makeKnownLinkObj( $title, + $this->mLinkHolders['texts'][$key], + $this->mLinkHolders['queries'][$key] ); + } elseif ( $colours[$pdbk] == 2 ) { + $replacePairs[$searchkey] = $sk->makeStubLinkObj( $title, + $this->mLinkHolders['texts'][$key], + $this->mLinkHolders['queries'][$key] ); + } + } + $replacer = new HashtableReplacer( $replacePairs, 1 ); + wfProfileOut( $fname.'-construct' ); + + # Do the thing + wfProfileIn( $fname.'-replace' ); + $text = preg_replace_callback( + '/(<!--LINK .*?-->)/', + $replacer->cb(), + $text); + + wfProfileOut( $fname.'-replace' ); + } + + # Now process interwiki link holders + # This is quite a bit simpler than internal links + if ( !empty( $this->mInterwikiLinkHolders['texts'] ) ) { + wfProfileIn( $fname.'-interwiki' ); + # Make interwiki link HTML + $replacePairs = array(); + foreach( $this->mInterwikiLinkHolders['texts'] as $key => $link ) { + $title = $this->mInterwikiLinkHolders['titles'][$key]; + $replacePairs[$key] = $sk->makeLinkObj( $title, $link ); + } + $replacer = new HashtableReplacer( $replacePairs, 1 ); + + $text = preg_replace_callback( + '/<!--IWLINK (.*?)-->/', + $replacer->cb(), + $text ); + wfProfileOut( $fname.'-interwiki' ); + } + + wfProfileOut( $fname ); + return $colours; + } + + /** + * Replace <!--LINK--> link placeholders with plain text of links + * (not HTML-formatted). + * @param string $text + * @return string + */ + function replaceLinkHoldersText( $text ) { + $fname = 'Parser::replaceLinkHoldersText'; + wfProfileIn( $fname ); + + $text = preg_replace_callback( + '/<!--(LINK|IWLINK) (.*?)-->/', + array( &$this, 'replaceLinkHoldersTextCallback' ), + $text ); + + wfProfileOut( $fname ); + return $text; + } + + /** + * @param array $matches + * @return string + * @private + */ + function replaceLinkHoldersTextCallback( $matches ) { + $type = $matches[1]; + $key = $matches[2]; + if( $type == 'LINK' ) { + if( isset( $this->mLinkHolders['texts'][$key] ) ) { + return $this->mLinkHolders['texts'][$key]; + } + } elseif( $type == 'IWLINK' ) { + if( isset( $this->mInterwikiLinkHolders['texts'][$key] ) ) { + return $this->mInterwikiLinkHolders['texts'][$key]; + } + } + return $matches[0]; + } + + /** + * Tag hook handler for 'pre'. + */ + function renderPreTag( $text, $attribs ) { + // Backwards-compatibility hack + $content = StringUtils::delimiterReplace( '<nowiki>', '</nowiki>', '$1', $text, 'i' ); + + $attribs = Sanitizer::validateTagAttributes( $attribs, 'pre' ); + return wfOpenElement( 'pre', $attribs ) . + Xml::escapeTagsOnly( $content ) . + '</pre>'; + } + + /** + * Renders an image gallery from a text with one line per image. + * text labels may be given by using |-style alternative text. E.g. + * Image:one.jpg|The number "1" + * Image:tree.jpg|A tree + * given as text will return the HTML of a gallery with two images, + * labeled 'The number "1"' and + * 'A tree'. + */ + function renderImageGallery( $text, $params ) { + $ig = new ImageGallery(); + $ig->setContextTitle( $this->mTitle ); + $ig->setShowBytes( false ); + $ig->setShowFilename( false ); + $ig->setParser( $this ); + $ig->setHideBadImages(); + $ig->setAttributes( Sanitizer::validateTagAttributes( $params, 'table' ) ); + $ig->useSkin( $this->mOptions->getSkin() ); + $ig->mRevisionId = $this->mRevisionId; + + if( isset( $params['caption'] ) ) { + $caption = $params['caption']; + $caption = htmlspecialchars( $caption ); + $caption = $this->replaceInternalLinks( $caption ); + $ig->setCaptionHtml( $caption ); + } + if( isset( $params['perrow'] ) ) { + $ig->setPerRow( $params['perrow'] ); + } + if( isset( $params['widths'] ) ) { + $ig->setWidths( $params['widths'] ); + } + if( isset( $params['heights'] ) ) { + $ig->setHeights( $params['heights'] ); + } + + wfRunHooks( 'BeforeParserrenderImageGallery', array( &$this, &$ig ) ); + + $lines = explode( "\n", $text ); + foreach ( $lines as $line ) { + # match lines like these: + # Image:someimage.jpg|This is some image + $matches = array(); + preg_match( "/^([^|]+)(\\|(.*))?$/", $line, $matches ); + # Skip empty lines + if ( count( $matches ) == 0 ) { + continue; + } + $tp = Title::newFromText( $matches[1] ); + $nt =& $tp; + if( is_null( $nt ) ) { + # Bogus title. Ignore these so we don't bomb out later. + continue; + } + if ( isset( $matches[3] ) ) { + $label = $matches[3]; + } else { + $label = ''; + } + + $pout = $this->parse( $label, + $this->mTitle, + $this->mOptions, + false, // Strip whitespace...? + false // Don't clear state! + ); + $html = $pout->getText(); + + $ig->add( $nt, $html ); + + # Only add real images (bug #5586) + if ( $nt->getNamespace() == NS_IMAGE ) { + $this->mOutput->addImage( $nt->getDBkey() ); + } + } + return $ig->toHTML(); + } + + function getImageParams( $handler ) { + if ( $handler ) { + $handlerClass = get_class( $handler ); + } else { + $handlerClass = ''; + } + if ( !isset( $this->mImageParams[$handlerClass] ) ) { + // Initialise static lists + static $internalParamNames = array( + 'horizAlign' => array( 'left', 'right', 'center', 'none' ), + 'vertAlign' => array( 'baseline', 'sub', 'super', 'top', 'text-top', 'middle', + 'bottom', 'text-bottom' ), + 'frame' => array( 'thumbnail', 'manualthumb', 'framed', 'frameless', + 'upright', 'border' ), + ); + static $internalParamMap; + if ( !$internalParamMap ) { + $internalParamMap = array(); + foreach ( $internalParamNames as $type => $names ) { + foreach ( $names as $name ) { + $magicName = str_replace( '-', '_', "img_$name" ); + $internalParamMap[$magicName] = array( $type, $name ); + } + } + } + + // Add handler params + $paramMap = $internalParamMap; + if ( $handler ) { + $handlerParamMap = $handler->getParamMap(); + foreach ( $handlerParamMap as $magic => $paramName ) { + $paramMap[$magic] = array( 'handler', $paramName ); + } + } + $this->mImageParams[$handlerClass] = $paramMap; + $this->mImageParamsMagicArray[$handlerClass] = new MagicWordArray( array_keys( $paramMap ) ); + } + return array( $this->mImageParams[$handlerClass], $this->mImageParamsMagicArray[$handlerClass] ); + } + + /** + * Parse image options text and use it to make an image + */ + function makeImage( $title, $options ) { + # @TODO: let the MediaHandler specify its transform parameters + # + # Check if the options text is of the form "options|alt text" + # Options are: + # * thumbnail make a thumbnail with enlarge-icon and caption, alignment depends on lang + # * left no resizing, just left align. label is used for alt= only + # * right same, but right aligned + # * none same, but not aligned + # * ___px scale to ___ pixels width, no aligning. e.g. use in taxobox + # * center center the image + # * framed Keep original image size, no magnify-button. + # * frameless like 'thumb' but without a frame. Keeps user preferences for width + # * upright reduce width for upright images, rounded to full __0 px + # * border draw a 1px border around the image + # vertical-align values (no % or length right now): + # * baseline + # * sub + # * super + # * top + # * text-top + # * middle + # * bottom + # * text-bottom + + $parts = array_map( 'trim', explode( '|', $options) ); + $sk = $this->mOptions->getSkin(); + + # Give extensions a chance to select the file revision for us + $skip = $time = false; + wfRunHooks( 'BeforeParserMakeImageLinkObj', array( &$this, &$title, &$skip, &$time ) ); + + if ( $skip ) { + return $sk->makeLinkObj( $title ); + } + + # Get parameter map + $file = wfFindFile( $title, $time ); + $handler = $file ? $file->getHandler() : false; + + list( $paramMap, $mwArray ) = $this->getImageParams( $handler ); + + # Process the input parameters + $caption = ''; + $params = array( 'frame' => array(), 'handler' => array(), + 'horizAlign' => array(), 'vertAlign' => array() ); + foreach( $parts as $part ) { + list( $magicName, $value ) = $mwArray->matchVariableStartToEnd( $part ); + if ( isset( $paramMap[$magicName] ) ) { + list( $type, $paramName ) = $paramMap[$magicName]; + $params[$type][$paramName] = $value; + + // Special case; width and height come in one variable together + if( $type == 'handler' && $paramName == 'width' ) { + $m = array(); + if ( preg_match( '/^([0-9]*)x([0-9]*)$/', $value, $m ) ) { + $params[$type]['width'] = intval( $m[1] ); + $params[$type]['height'] = intval( $m[2] ); + } else { + $params[$type]['width'] = intval( $value ); + } + } + } else { + $caption = $part; + } + } + + # Process alignment parameters + if ( $params['horizAlign'] ) { + $params['frame']['align'] = key( $params['horizAlign'] ); + } + if ( $params['vertAlign'] ) { + $params['frame']['valign'] = key( $params['vertAlign'] ); + } + + # Validate the handler parameters + if ( $handler ) { + foreach ( $params['handler'] as $name => $value ) { + if ( !$handler->validateParam( $name, $value ) ) { + unset( $params['handler'][$name] ); + } + } + } + + # Strip bad stuff out of the alt text + $alt = $this->replaceLinkHoldersText( $caption ); + + # make sure there are no placeholders in thumbnail attributes + # that are later expanded to html- so expand them now and + # remove the tags + $alt = $this->mStripState->unstripBoth( $alt ); + $alt = Sanitizer::stripAllTags( $alt ); + + $params['frame']['alt'] = $alt; + $params['frame']['caption'] = $caption; + + # Linker does the rest + $ret = $sk->makeImageLink2( $title, $file, $params['frame'], $params['handler'] ); + + # Give the handler a chance to modify the parser object + if ( $handler ) { + $handler->parserTransformHook( $this, $file ); + } + + return $ret; + } + + /** + * Set a flag in the output object indicating that the content is dynamic and + * shouldn't be cached. + */ + function disableCache() { + wfDebug( "Parser output marked as uncacheable.\n" ); + $this->mOutput->mCacheTime = -1; + } + + /**#@+ + * Callback from the Sanitizer for expanding items found in HTML attribute + * values, so they can be safely tested and escaped. + * @param string $text + * @param array $args + * @return string + * @private + */ + function attributeStripCallback( &$text, $args ) { + $text = $this->replaceVariables( $text, $args ); + $text = $this->mStripState->unstripBoth( $text ); + return $text; + } + + /**#@-*/ + + /**#@+ + * Accessor/mutator + */ + function Title( $x = NULL ) { return wfSetVar( $this->mTitle, $x ); } + function Options( $x = NULL ) { return wfSetVar( $this->mOptions, $x ); } + function OutputType( $x = NULL ) { return wfSetVar( $this->mOutputType, $x ); } + /**#@-*/ + + /**#@+ + * Accessor + */ + function getTags() { return array_merge( array_keys($this->mTransparentTagHooks), array_keys( $this->mTagHooks ) ); } + /**#@-*/ + + + /** + * Break wikitext input into sections, and either pull or replace + * some particular section's text. + * + * External callers should use the getSection and replaceSection methods. + * + * @param $text Page wikitext + * @param $section Numbered section. 0 pulls the text before the first + * heading; other numbers will pull the given section + * along with its lower-level subsections. + * @param $mode One of "get" or "replace" + * @param $newtext Replacement text for section data. + * @return string for "get", the extracted section text. + * for "replace", the whole page with the section replaced. + */ + private function extractSections( $text, $section, $mode, $newtext='' ) { + # I.... _hope_ this is right. + # Otherwise, sometimes we don't have things initialized properly. + $this->clearState(); + + # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML + # comments to be stripped as well) + $stripState = new StripState; + + $oldOutputType = $this->mOutputType; + $oldOptions = $this->mOptions; + $this->mOptions = new ParserOptions(); + $this->setOutputType( self::OT_WIKI ); + + $striptext = $this->strip( $text, $stripState, true ); + + $this->setOutputType( $oldOutputType ); + $this->mOptions = $oldOptions; + + # now that we can be sure that no pseudo-sections are in the source, + # split it up by section + $uniq = preg_quote( $this->uniqPrefix(), '/' ); + $comment = "(?:$uniq-!--.*?QINU\x07)"; + $secs = preg_split( + "/ + ( + ^ + (?:$comment|<\/?noinclude>)* # Initial comments will be stripped + (=+) # Should this be limited to 6? + .+? # Section title... + \\2 # Ending = count must match start + (?:$comment|<\/?noinclude>|[ \\t]+)* # Trailing whitespace ok + $ + | + <h([1-6])\b.*?> + .*? + <\/h\\3\s*> + ) + /mix", + $striptext, -1, + PREG_SPLIT_DELIM_CAPTURE); + + if( $mode == "get" ) { + if( $section == 0 ) { + // "Section 0" returns the content before any other section. + $rv = $secs[0]; + } else { + //track missing section, will replace if found. + $rv = $newtext; + } + } elseif( $mode == "replace" ) { + if( $section == 0 ) { + $rv = $newtext . "\n\n"; + $remainder = true; + } else { + $rv = $secs[0]; + $remainder = false; + } + } + $count = 0; + $sectionLevel = 0; + for( $index = 1; $index < count( $secs ); ) { + $headerLine = $secs[$index++]; + if( $secs[$index] ) { + // A wiki header + $headerLevel = strlen( $secs[$index++] ); + } else { + // An HTML header + $index++; + $headerLevel = intval( $secs[$index++] ); + } + $content = $secs[$index++]; + + $count++; + if( $mode == "get" ) { + if( $count == $section ) { + $rv = $headerLine . $content; + $sectionLevel = $headerLevel; + } elseif( $count > $section ) { + if( $sectionLevel && $headerLevel > $sectionLevel ) { + $rv .= $headerLine . $content; + } else { + // Broke out to a higher-level section + break; + } + } + } elseif( $mode == "replace" ) { + if( $count < $section ) { + $rv .= $headerLine . $content; + } elseif( $count == $section ) { + $rv .= $newtext . "\n\n"; + $sectionLevel = $headerLevel; + } elseif( $count > $section ) { + if( $headerLevel <= $sectionLevel ) { + // Passed the section's sub-parts. + $remainder = true; + } + if( $remainder ) { + $rv .= $headerLine . $content; + } + } + } + } + if (is_string($rv)) + # reinsert stripped tags + $rv = trim( $stripState->unstripBoth( $rv ) ); + + return $rv; + } + + /** + * This function returns the text of a section, specified by a number ($section). + * A section is text under a heading like == Heading == or \<h1\>Heading\</h1\>, or + * the first section before any such heading (section 0). + * + * If a section contains subsections, these are also returned. + * + * @param $text String: text to look in + * @param $section Integer: section number + * @param $deftext: default to return if section is not found + * @return string text of the requested section + */ + public function getSection( $text, $section, $deftext='' ) { + return $this->extractSections( $text, $section, "get", $deftext ); + } + + public function replaceSection( $oldtext, $section, $text ) { + return $this->extractSections( $oldtext, $section, "replace", $text ); + } + + /** + * Get the timestamp associated with the current revision, adjusted for + * the default server-local timestamp + */ + function getRevisionTimestamp() { + if ( is_null( $this->mRevisionTimestamp ) ) { + wfProfileIn( __METHOD__ ); + global $wgContLang; + $dbr = wfGetDB( DB_SLAVE ); + $timestamp = $dbr->selectField( 'revision', 'rev_timestamp', + array( 'rev_id' => $this->mRevisionId ), __METHOD__ ); + + // Normalize timestamp to internal MW format for timezone processing. + // This has the added side-effect of replacing a null value with + // the current time, which gives us more sensible behavior for + // previews. + $timestamp = wfTimestamp( TS_MW, $timestamp ); + + // The cryptic '' timezone parameter tells to use the site-default + // timezone offset instead of the user settings. + // + // Since this value will be saved into the parser cache, served + // to other users, and potentially even used inside links and such, + // it needs to be consistent for all visitors. + $this->mRevisionTimestamp = $wgContLang->userAdjust( $timestamp, '' ); + + wfProfileOut( __METHOD__ ); + } + return $this->mRevisionTimestamp; + } + + /** + * Mutator for $mDefaultSort + * + * @param $sort New value + */ + public function setDefaultSort( $sort ) { + $this->mDefaultSort = $sort; + } + + /** + * Accessor for $mDefaultSort + * Will use the title/prefixed title if none is set + * + * @return string + */ + public function getDefaultSort() { + if( $this->mDefaultSort !== false ) { + return $this->mDefaultSort; + } else { + return $this->mTitle->getNamespace() == NS_CATEGORY + ? $this->mTitle->getText() + : $this->mTitle->getPrefixedText(); + } + } + + /** + * Try to guess the section anchor name based on a wikitext fragment + * presumably extracted from a heading, for example "Header" from + * "== Header ==". + */ + public function guessSectionNameFromWikiText( $text ) { + # Strip out wikitext links(they break the anchor) + $text = $this->stripSectionName( $text ); + $headline = Sanitizer::decodeCharReferences( $text ); + # strip out HTML + $headline = StringUtils::delimiterReplace( '<', '>', '', $headline ); + $headline = trim( $headline ); + $sectionanchor = '#' . urlencode( str_replace( ' ', '_', $headline ) ); + $replacearray = array( + '%3A' => ':', + '%' => '.' + ); + return str_replace( + array_keys( $replacearray ), + array_values( $replacearray ), + $sectionanchor ); + } + + /** + * Strips a text string of wikitext for use in a section anchor + * + * Accepts a text string and then removes all wikitext from the + * string and leaves only the resultant text (i.e. the result of + * [[User:WikiSysop|Sysop]] would be "Sysop" and the result of + * [[User:WikiSysop]] would be "User:WikiSysop") - this is intended + * to create valid section anchors by mimicing the output of the + * parser when headings are parsed. + * + * @param $text string Text string to be stripped of wikitext + * for use in a Section anchor + * @return Filtered text string + */ + public function stripSectionName( $text ) { + # Strip internal link markup + $text = preg_replace('/\[\[:?([^[|]+)\|([^[]+)\]\]/','$2',$text); + $text = preg_replace('/\[\[:?([^[]+)\|?\]\]/','$1',$text); + + # Strip external link markup (FIXME: Not Tolerant to blank link text + # I.E. [http://www.mediawiki.org] will render as [1] or something depending + # on how many empty links there are on the page - need to figure that out. + $text = preg_replace('/\[(?:' . wfUrlProtocols() . ')([^ ]+?) ([^[]+)\]/','$2',$text); + + # Parse wikitext quotes (italics & bold) + $text = $this->doQuotes($text); + + # Strip HTML tags + $text = StringUtils::delimiterReplace( '<', '>', '', $text ); + return $text; + } + + /** + * strip/replaceVariables/unstrip for preprocessor regression testing + */ + function srvus( $text ) { + $text = $this->strip( $text, $this->mStripState ); + $text = Sanitizer::removeHTMLtags( $text ); + $text = $this->replaceVariables( $text ); + $text = preg_replace( '/<!--MWTEMPLATESECTION.*?-->/', '', $text ); + $text = $this->mStripState->unstripBoth( $text ); + return $text; + } +} + |