<?php
/**
*
* File for Parser and related classes
*
* @addtogroup Parser
*/
/**
* Update this version number when the ParserOutput format
* changes in an incompatible way, so the parser cache
* can automatically discard old data.
*/
define( 'MW_PARSER_VERSION', '1.6.2' );
define( 'RLH_FOR_UPDATE', 1 );
# Allowed values for $mOutputType
define( 'OT_HTML', 1 );
define( 'OT_WIKI', 2 );
define( 'OT_MSG' , 3 );
define( 'OT_PREPROCESS', 4 );
# Flags for setFunctionHook
define( 'SFH_NO_HASH', 1 );
# string parameter for extractTags which will cause it
# to strip HTML comments in addition to regular
# <XML>-style tags. This should not be anything we
# may want to use in wikisyntax
define( 'STRIP_COMMENTS', 'HTMLCommentStrip' );
# Constants needed for external link processing
define( 'HTTP_PROTOCOLS', 'http:\/\/|https:\/\/' );
# Everything except bracket, space, or control characters
define( 'EXT_LINK_URL_CLASS', '[^][<>"\\x00-\\x20\\x7F]' );
# Including space, but excluding newlines
define( 'EXT_LINK_TEXT_CLASS', '[^\]\\x0a\\x0d]' );
define( 'EXT_IMAGE_FNAME_CLASS', '[A-Za-z0-9_.,~%\\-+&;#*?!=()@\\x80-\\xFF]' );
define( 'EXT_IMAGE_EXTENSIONS', 'gif|png|jpg|jpeg' );
define( 'EXT_LINK_BRACKETED', '/\[(\b(' . wfUrlProtocols() . ')'.
EXT_LINK_URL_CLASS.'+) *('.EXT_LINK_TEXT_CLASS.'*?)\]/S' );
define( 'EXT_IMAGE_REGEX',
'/^('.HTTP_PROTOCOLS.')'. # Protocol
'('.EXT_LINK_URL_CLASS.'+)\\/'. # Hostname and path
'('.EXT_IMAGE_FNAME_CLASS.'+)\\.((?i)'.EXT_IMAGE_EXTENSIONS.')$/S' # Filename
);
// State constants for the definition list colon extraction
define( 'MW_COLON_STATE_TEXT', 0 );
define( 'MW_COLON_STATE_TAG', 1 );
define( 'MW_COLON_STATE_TAGSTART', 2 );
define( 'MW_COLON_STATE_CLOSETAG', 3 );
define( 'MW_COLON_STATE_TAGSLASH', 4 );
define( 'MW_COLON_STATE_COMMENT', 5 );
define( 'MW_COLON_STATE_COMMENTDASH', 6 );
define( 'MW_COLON_STATE_COMMENTDASHDASH', 7 );
/**
* PHP Parser - Processes wiki markup (which uses a more user-friendly
* syntax, such as "[[link]]" for making links), and provides a one-way
* transformation of that wiki markup it into XHTML output / markup
* (which in turn the browser understands, and can display).
*
* <pre>
* There are four main entry points into the Parser class:
* parse()
* produces HTML output
* preSaveTransform().
* produces altered wiki markup.
* transformMsg()
* performs brace substitution on MediaWiki messages
* preprocess()
* removes HTML comments and expands templates
*
* Globals used:
* objects: $wgLang, $wgContLang
*
* NOT $wgArticle, $wgUser or $wgTitle. Keep them away!
*
* settings:
* $wgUseTex*, $wgUseDynamicDates*, $wgInterwikiMagic*,
* $wgNamespacesWithSubpages, $wgAllowExternalImages*,
* $wgLocaltimezone, $wgAllowSpecialInclusion*,
* $wgMaxArticleSize*
*
* * only within ParserOptions
* </pre>
*
* @addtogroup Parser
*/
class Parser
{
const VERSION = MW_PARSER_VERSION;
/**#@+
* @private
*/
# Persistent:
var $mTagHooks, $mTransparentTagHooks, $mFunctionHooks, $mFunctionSynonyms, $mVariables,
$mImageParams, $mImageParamsMagicArray;
# 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 Parser() {
$this->mTagHooks = array();
$this->mTransparentTagHooks = array();
$this->mFunctionHooks = array();
$this->mFunctionSynonyms = array( 0 => array(), 1 => array() );
$this->mFirstCall = true;
}
/**
* Do various kinds of initialisation on the first call of the parser
*/
function firstCallInit() {
if ( !$this->mFirstCall ) {
return;
}
wfProfileIn( __METHOD__ );
global $wgAllowDisplayTitle, $wgAllowSlowParserFunctions;
$this->setHook( 'pre', array( $this, 'renderPreTag' ) );
$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 );
if ( $wgAllowDisplayTitle ) {
$this->setFunctionHook( 'displaytitle', array( 'CoreParserFunctions', 'displaytitle' ), SFH_NO_HASH );
}
if ( $wgAllowSlowParserFunctions ) {
$this->setFunctionHook( 'pagesinnamespace', array( 'CoreParserFunctions', 'pagesinnamespace' ), SFH_NO_HASH );
}
$this->initialiseVariables();
$this->mFirstCall = false;
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" . Parser::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 == OT_HTML,
'wiki' => $ot == OT_WIKI,
'msg' => $ot == OT_MSG,
'pre' => $ot == 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;
}
$this->setOutputType( OT_HTML );
wfRunHooks( 'ParserBeforeStrip', array( &$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 = Parser::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) {
$text = Parser::tidy($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 ( max( $this->mIncludeSizes ) > 1000 ) {
$max = $this->mOptions->getMaxIncludeSize();
$text .= "<!-- \n" .
"Pre-expand include size: {$this->mIncludeSizes['pre-expand']} bytes\n" .
"Post-expand include size: {$this->mIncludeSizes['post-expand']} bytes\n" .
"Template argument size: {$this->mIncludeSizes['arg']} bytes\n" .
"Maximum: $max bytes\n" .
"-->\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( 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 == 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 = Parser::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' . Parser::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 = Parser::internalTidy( $wrappedtext );
} else {
$correctedtext = Parser::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. Currently written to
* the PHP 4.3.x version of the extension, may not work on PHP 5.
*
* 'pear install tidy' should be able to compile the extension module.
*
* @private
* @static
*/
function internalTidy( $text ) {
global $wgTidyConf;
$fname = 'Parser::internalTidy';
wfProfileIn( $fname );
tidy_load_config( $wgTidyConf );
tidy_set_encoding( 'utf8' );
tidy_parse_string( $text );
tidy_clean_repair();
if( tidy_get_status() == 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();
}
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()
* @private
*/
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( EXT_LINK_BRACKETED, $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 = Parser::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++];
$m = array();
if ( preg_match( '/^('.EXT_LINK_URL_CLASS.'+)(.*)$/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( '/^('.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 = Parser::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( 'Parser', '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( 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 = MW_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: // MW_COLON_STATE_TEXT:
switch( $c ) {
case "<":
// Could be either a <start> tag or an </end> tag
$state = MW_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 = MW_COLON_STATE_TAGSTART;
}
break;
case 1: // MW_COLON_STATE_TAG:
// In a <tag>
switch( $c ) {
case ">":
$stack++;
$state = MW_COLON_STATE_TEXT;
break;
case "/":
// Slash may be followed by >?
$state = MW_COLON_STATE_TAGSLASH;
break;
default:
// ignore
}
break;
case 2: // MW_COLON_STATE_TAGSTART:
switch( $c ) {
case "/":
$state = MW_COLON_STATE_CLOSETAG;
break;
case "!":
$state = MW_COLON_STATE_COMMENT;
break;
case ">":
// Illegal early close? This shouldn't happen D:
$state = MW_COLON_STATE_TEXT;
break;
default:
$state = MW_COLON_STATE_TAG;
}
break;
case 3: // MW_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 = MW_COLON_STATE_TEXT;
}
break;
case MW_COLON_STATE_TAGSLASH:
if( $c == ">" ) {
// Yes, a self-closed tag <blah/>
$state = MW_COLON_STATE_TEXT;
} else {
// Probably we're jumping the gun, and this is an attribute
$state = MW_COLON_STATE_TAG;
}
break;
case 5: // MW_COLON_STATE_COMMENT:
if( $c == "-" ) {
$state = MW_COLON_STATE_COMMENTDASH;
}
break;
case MW_COLON_STATE_COMMENTDASH:
if( $c == "-" ) {
$state = MW_COLON_STATE_COMMENTDASHDASH;
} else {
$state = MW_COLON_STATE_COMMENT;
}
break;
case MW_COLON_STATE_COMMENTDASHDASH:
if( $c == ">" ) {
$state = MW_COLON_STATE_TEXT;
} else {
$state = MW_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:
* OT_WIKI: only {{subst:}} templates
* OT_MSG: only magic variables
* 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 != 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 == 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 );
$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 ) {
$text = $skip = false;
$finalTitle = $title;
// 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
$id = false; // Assume current
wfRunHooks( 'BeforeParserFetchTemplateAndtitle', array( &$this, &$title, &$skip, &$id ) );
if( $skip ) {
$text = false;
$this->mOutput->addTemplate( $title, $title->getArticleID(), null );
break;
}
$rev = $id ? Revision::newFromId( $id ) : Revision::newFromTitle( $title );
$rev_id = $rev ? $rev->getId() : 0;
$this->mOutput->addTemplate( $title, $title->getArticleID(), $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,$finalTitle);
}
function fetchTemplate( $title ) {
$rv = $this->fetchTemplateAndtitle($title);
return $rv[0];
}
/**
* 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 == OT_HTML || $this->mOutputType == 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 logged in users who have enabled the option
* 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;
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);
}
# 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++;
}
# 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( 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
$userpage = $user->getUserPage();
return( '[[' . $userpage->getPrefixedText() . '|' . wfEscapeWikiText( $nickname ) . ']]' );
}
/**
* 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( $wgTitle, new ParserOptions(), $parsing ? OT_WIKI : 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( 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( 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();
}
}
}
/**
* @todo document, briefly.
* @addtogroup Parser
*/
class OnlyIncludeReplacer {
var $output = '';
function replace( $matches ) {
if ( substr( $matches[1], -1 ) == "\n" ) {
$this->output .= substr( $matches[1], 0, -1 );
} else {
$this->output .= $matches[1];
}
}
}
/**
* @todo document, briefly.
* @addtogroup Parser
*/
class StripState {
var $general, $nowiki;
function __construct() {
$this->general = new ReplacementArray;
$this->nowiki = new ReplacementArray;
}
function unstripGeneral( $text ) {
wfProfileIn( __METHOD__ );
$text = $this->general->replace( $text );
wfProfileOut( __METHOD__ );
return $text;
}
function unstripNoWiki( $text ) {
wfProfileIn( __METHOD__ );
$text = $this->nowiki->replace( $text );
wfProfileOut( __METHOD__ );
return $text;
}
function unstripBoth( $text ) {
wfProfileIn( __METHOD__ );
$text = $this->general->replace( $text );
$text = $this->nowiki->replace( $text );
wfProfileOut( __METHOD__ );
return $text;
}
}
