3 * PHP parser that converts wiki markup to HTML.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
23 use MediaWiki\Linker\LinkRenderer
;
24 use MediaWiki\MediaWikiServices
;
25 use MediaWiki\Special\SpecialPageFactory
;
26 use Wikimedia\ScopedCallback
;
29 * @defgroup Parser Parser
33 * PHP Parser - Processes wiki markup (which uses a more user-friendly
34 * syntax, such as "[[link]]" for making links), and provides a one-way
35 * transformation of that wiki markup it into (X)HTML output / markup
36 * (which in turn the browser understands, and can display).
38 * There are seven main entry points into the Parser class:
41 * produces HTML output
42 * - Parser::preSaveTransform()
43 * produces altered wiki markup
44 * - Parser::preprocess()
45 * removes HTML comments and expands templates
46 * - Parser::cleanSig() and Parser::cleanSigInSig()
47 * cleans a signature before saving it to preferences
48 * - Parser::getSection()
49 * return the content of a section from an article for section editing
50 * - Parser::replaceSection()
51 * replaces a section by number inside an article
52 * - Parser::getPreloadText()
53 * removes <noinclude> sections and <includeonly> tags
55 * @warning $wgUser or $wgTitle or $wgRequest or $wgLang. Keep them away!
58 * $wgNamespacesWithSubpages
60 * @par Settings only within ParserOptions:
61 * $wgAllowExternalImages
62 * $wgAllowSpecialInclusion
70 * Update this version number when the ParserOutput format
71 * changes in an incompatible way, so the parser cache
72 * can automatically discard old data.
74 const VERSION
= '1.6.4';
77 * Update this version number when the output of serialiseHalfParsedText()
78 * changes in an incompatible way
80 const HALF_PARSED_VERSION
= 2;
82 # Flags for Parser::setFunctionHook
83 const SFH_NO_HASH
= 1;
84 const SFH_OBJECT_ARGS
= 2;
86 # Constants needed for external link processing
87 # Everything except bracket, space, or control characters
88 # \p{Zs} is unicode 'separator, space' category. It covers the space 0x20
89 # as well as U+3000 is IDEOGRAPHIC SPACE for T21052
90 # \x{FFFD} is the Unicode replacement character, which Preprocessor_DOM
91 # uses to replace invalid HTML characters.
92 const EXT_LINK_URL_CLASS
= '[^][<>"\\x00-\\x20\\x7F\p{Zs}\x{FFFD}]';
93 # Simplified expression to match an IPv4 or IPv6 address, or
94 # at least one character of a host name (embeds EXT_LINK_URL_CLASS)
95 const EXT_LINK_ADDR
= '(?:[0-9.]+|\\[(?i:[0-9a-f:.]+)\\]|[^][<>"\\x00-\\x20\\x7F\p{Zs}\x{FFFD}])';
96 # RegExp to make image URLs (embeds IPv6 part of EXT_LINK_ADDR)
97 // phpcs:ignore Generic.Files.LineLength
98 const EXT_IMAGE_REGEX
= '/^(http:\/\/|https:\/\/)((?:\\[(?i:[0-9a-f:.]+)\\])?[^][<>"\\x00-\\x20\\x7F\p{Zs}\x{FFFD}]+)
99 \\/([A-Za-z0-9_.,~%\\-+&;#*?!=()@\\x80-\\xFF]+)\\.((?i)gif|png|jpg|jpeg)$/Sxu';
101 # Regular expression for a non-newline space
102 const SPACE_NOT_NL
= '(?:\t| |&\#0*160;|&\#[Xx]0*[Aa]0;|\p{Zs})';
104 # Flags for preprocessToDom
105 const PTD_FOR_INCLUSION
= 1;
107 # Allowed values for $this->mOutputType
108 # Parameter to startExternalParse().
109 const OT_HTML
= 1; # like parse()
110 const OT_WIKI
= 2; # like preSaveTransform()
111 const OT_PREPROCESS
= 3; # like preprocess()
113 const OT_PLAIN
= 4; # like extractSections() - portions of the original are returned unchanged.
116 * @var string Prefix and suffix for temporary replacement strings
117 * for the multipass parser.
119 * \x7f should never appear in input as it's disallowed in XML.
120 * Using it at the front also gives us a little extra robustness
121 * since it shouldn't match when butted up against identifier-like
124 * Must not consist of all title characters, or else it will change
125 * the behavior of <nowiki> in a link.
127 * Must have a character that needs escaping in attributes, otherwise
128 * someone could put a strip marker in an attribute, to get around
129 * escaping quote marks, and break out of the attribute. Thus we add
132 const MARKER_SUFFIX
= "-QINU`\"'\x7f";
133 const MARKER_PREFIX
= "\x7f'\"`UNIQ-";
135 # Markers used for wrapping the table of contents
136 const TOC_START
= '<mw:toc>';
137 const TOC_END
= '</mw:toc>';
139 /** @var int Assume that no output will later be saved this many seconds after parsing */
143 public $mTagHooks = [];
144 public $mTransparentTagHooks = [];
145 public $mFunctionHooks = [];
146 public $mFunctionSynonyms = [ 0 => [], 1 => [] ];
147 public $mFunctionTagHooks = [];
148 public $mStripList = [];
149 public $mDefaultStripList = [];
150 public $mVarCache = [];
151 public $mImageParams = [];
152 public $mImageParamsMagicArray = [];
153 public $mMarkerIndex = 0;
155 * @var bool Whether firstCallInit still needs to be called
157 public $mFirstCall = true;
159 # Initialised by initialiseVariables()
162 * @var MagicWordArray
167 * @var MagicWordArray
170 # Initialised in constructor
171 public $mConf, $mExtLinkBracketedRegex, $mUrlProtocols;
173 # Initialized in getPreprocessor()
174 /** @var Preprocessor */
175 public $mPreprocessor;
177 # Cleared with clearState():
189 public $mIncludeCount;
191 * @var LinkHolderArray
193 public $mLinkHolders;
196 public $mIncludeSizes, $mPPNodeCount, $mGeneratedPPNodeCount, $mHighestExpansionDepth;
197 public $mDefaultSort;
198 public $mTplRedirCache, $mTplDomCache, $mHeadings, $mDoubleUnderscores;
199 public $mExpensiveFunctionCount; # number of expensive parser function calls
200 public $mShowToc, $mForceTocPosition;
205 public $mUser; # User object; only used when doing pre-save transform
208 # These are variables reset at least once per parse regardless of $clearState
218 public $mTitle; # Title context, used for self-link rendering and similar things
219 public $mOutputType; # Output type, one of the OT_xxx constants
220 public $ot; # Shortcut alias, see setOutputType()
221 public $mRevisionObject; # The revision object of the specified revision ID
222 public $mRevisionId; # ID to display in {{REVISIONID}} tags
223 public $mRevisionTimestamp; # The timestamp of the specified revision ID
224 public $mRevisionUser; # User to display in {{REVISIONUSER}} tag
225 public $mRevisionSize; # Size to display in {{REVISIONSIZE}} variable
226 public $mRevIdForTs; # The revision ID which was used to fetch the timestamp
227 public $mInputSize = false; # For {{PAGESIZE}} on current page.
230 * @var string Deprecated accessor for the strip marker prefix.
231 * @deprecated since 1.26; use Parser::MARKER_PREFIX instead.
233 public $mUniqPrefix = self
::MARKER_PREFIX
;
236 * @var array Array with the language name of each language link (i.e. the
237 * interwiki prefix) in the key, value arbitrary. Used to avoid sending
238 * duplicate language links to the ParserOutput.
240 public $mLangLinkLanguages;
243 * @var MapCacheLRU|null
246 * A cache of the current revisions of titles. Keys are $title->getPrefixedDbKey()
248 public $currentRevisionCache;
251 * @var bool|string Recursive call protection.
252 * This variable should be treated as if it were private.
254 public $mInParse = false;
256 /** @var SectionProfiler */
257 protected $mProfiler;
262 protected $mLinkRenderer;
264 /** @var MagicWordFactory */
265 private $magicWordFactory;
270 /** @var ParserFactory */
273 /** @var SpecialPageFactory */
274 private $specialPageFactory;
280 * @param array $parserConf See $wgParserConf documentation
281 * @param MagicWordFactory|null $magicWordFactory
282 * @param Language|null $contLang Content language
283 * @param ParserFactory|null $factory
284 * @param string|null $urlProtocols As returned from wfUrlProtocols()
285 * @param SpecialPageFactory|null $spFactory
286 * @param Config|null $siteConfig
288 public function __construct(
289 array $parserConf = [], MagicWordFactory
$magicWordFactory = null,
290 Language
$contLang = null, ParserFactory
$factory = null, $urlProtocols = null,
291 SpecialPageFactory
$spFactory = null, Config
$siteConfig = null
293 $this->mConf
= $parserConf;
294 $this->mUrlProtocols
= $urlProtocols ??
wfUrlProtocols();
295 $this->mExtLinkBracketedRegex
= '/\[(((?i)' . $this->mUrlProtocols
. ')' .
296 self
::EXT_LINK_ADDR
.
297 self
::EXT_LINK_URL_CLASS
. '*)\p{Zs}*([^\]\\x00-\\x08\\x0a-\\x1F\\x{FFFD}]*?)\]/Su';
298 if ( isset( $parserConf['preprocessorClass'] ) ) {
299 $this->mPreprocessorClass
= $parserConf['preprocessorClass'];
300 } elseif ( wfIsHHVM() ) {
301 # Under HHVM Preprocessor_Hash is much faster than Preprocessor_DOM
302 $this->mPreprocessorClass
= Preprocessor_Hash
::class;
303 } elseif ( extension_loaded( 'domxml' ) ) {
304 # PECL extension that conflicts with the core DOM extension (T15770)
305 wfDebug( "Warning: you have the obsolete domxml extension for PHP. Please remove it!\n" );
306 $this->mPreprocessorClass
= Preprocessor_Hash
::class;
307 } elseif ( extension_loaded( 'dom' ) ) {
308 $this->mPreprocessorClass
= Preprocessor_DOM
::class;
310 $this->mPreprocessorClass
= Preprocessor_Hash
::class;
312 wfDebug( __CLASS__
. ": using preprocessor: {$this->mPreprocessorClass}\n" );
314 $services = MediaWikiServices
::getInstance();
315 $this->magicWordFactory
= $magicWordFactory ??
316 $services->getMagicWordFactory();
318 $this->contLang
= $contLang ??
$services->getContentLanguage();
320 $this->factory
= $factory ??
$services->getParserFactory();
321 $this->specialPageFactory
= $spFactory ??
$services->getSpecialPageFactory();
322 $this->siteConfig
= $siteConfig ?? MediaWikiServices
::getInstance()->getMainConfig();
326 * Reduce memory usage to reduce the impact of circular references
328 public function __destruct() {
329 if ( isset( $this->mLinkHolders
) ) {
330 unset( $this->mLinkHolders
);
332 foreach ( $this as $name => $value ) {
333 unset( $this->$name );
338 * Allow extensions to clean up when the parser is cloned
340 public function __clone() {
341 $this->mInParse
= false;
343 // T58226: When you create a reference "to" an object field, that
344 // makes the object field itself be a reference too (until the other
345 // reference goes out of scope). When cloning, any field that's a
346 // reference is copied as a reference in the new object. Both of these
347 // are defined PHP5 behaviors, as inconvenient as it is for us when old
348 // hooks from PHP4 days are passing fields by reference.
349 foreach ( [ 'mStripState', 'mVarCache' ] as $k ) {
350 // Make a non-reference copy of the field, then rebind the field to
351 // reference the new copy.
357 Hooks
::run( 'ParserCloned', [ $this ] );
361 * Do various kinds of initialisation on the first call of the parser
363 public function firstCallInit() {
364 if ( !$this->mFirstCall
) {
367 $this->mFirstCall
= false;
369 CoreParserFunctions
::register( $this );
370 CoreTagHooks
::register( $this );
371 $this->initialiseVariables();
373 // Avoid PHP 7.1 warning from passing $this by reference
375 Hooks
::run( 'ParserFirstCallInit', [ &$parser ] );
383 public function clearState() {
384 $this->firstCallInit();
385 $this->mOutput
= new ParserOutput
;
386 $this->mOptions
->registerWatcher( [ $this->mOutput
, 'recordOption' ] );
387 $this->mAutonumber
= 0;
388 $this->mIncludeCount
= [];
389 $this->mLinkHolders
= new LinkHolderArray( $this );
391 $this->mRevisionObject
= $this->mRevisionTimestamp
=
392 $this->mRevisionId
= $this->mRevisionUser
= $this->mRevisionSize
= null;
393 $this->mVarCache
= [];
395 $this->mLangLinkLanguages
= [];
396 $this->currentRevisionCache
= null;
398 $this->mStripState
= new StripState( $this );
400 # Clear these on every parse, T6549
401 $this->mTplRedirCache
= $this->mTplDomCache
= [];
403 $this->mShowToc
= true;
404 $this->mForceTocPosition
= false;
405 $this->mIncludeSizes
= [
409 $this->mPPNodeCount
= 0;
410 $this->mGeneratedPPNodeCount
= 0;
411 $this->mHighestExpansionDepth
= 0;
412 $this->mDefaultSort
= false;
413 $this->mHeadings
= [];
414 $this->mDoubleUnderscores
= [];
415 $this->mExpensiveFunctionCount
= 0;
418 if ( isset( $this->mPreprocessor
) && $this->mPreprocessor
->parser
!== $this ) {
419 $this->mPreprocessor
= null;
422 $this->mProfiler
= new SectionProfiler();
424 // Avoid PHP 7.1 warning from passing $this by reference
426 Hooks
::run( 'ParserClearState', [ &$parser ] );
430 * Convert wikitext to HTML
431 * Do not call this function recursively.
433 * @param string $text Text we want to parse
434 * @param-taint $text escapes_htmlnoent
435 * @param Title $title
436 * @param ParserOptions $options
437 * @param bool $linestart
438 * @param bool $clearState
439 * @param int|null $revid Number to pass in {{REVISIONID}}
440 * @return ParserOutput A ParserOutput
441 * @return-taint escaped
443 public function parse(
444 $text, Title
$title, ParserOptions
$options,
445 $linestart = true, $clearState = true, $revid = null
448 // We use U+007F DELETE to construct strip markers, so we have to make
449 // sure that this character does not occur in the input text.
450 $text = strtr( $text, "\x7f", "?" );
451 $magicScopeVariable = $this->lock();
453 // Strip U+0000 NULL (T159174)
454 $text = str_replace( "\000", '', $text );
456 $this->startParse( $title, $options, self
::OT_HTML
, $clearState );
458 $this->currentRevisionCache
= null;
459 $this->mInputSize
= strlen( $text );
460 if ( $this->mOptions
->getEnableLimitReport() ) {
461 $this->mOutput
->resetParseStartTime();
464 $oldRevisionId = $this->mRevisionId
;
465 $oldRevisionObject = $this->mRevisionObject
;
466 $oldRevisionTimestamp = $this->mRevisionTimestamp
;
467 $oldRevisionUser = $this->mRevisionUser
;
468 $oldRevisionSize = $this->mRevisionSize
;
469 if ( $revid !== null ) {
470 $this->mRevisionId
= $revid;
471 $this->mRevisionObject
= null;
472 $this->mRevisionTimestamp
= null;
473 $this->mRevisionUser
= null;
474 $this->mRevisionSize
= null;
477 // Avoid PHP 7.1 warning from passing $this by reference
479 Hooks
::run( 'ParserBeforeStrip', [ &$parser, &$text, &$this->mStripState
] );
481 Hooks
::run( 'ParserAfterStrip', [ &$parser, &$text, &$this->mStripState
] );
482 $text = $this->internalParse( $text );
483 Hooks
::run( 'ParserAfterParse', [ &$parser, &$text, &$this->mStripState
] );
485 $text = $this->internalParseHalfParsed( $text, true, $linestart );
488 * A converted title will be provided in the output object if title and
489 * content conversion are enabled, the article text does not contain
490 * a conversion-suppressing double-underscore tag, and no
491 * {{DISPLAYTITLE:...}} is present. DISPLAYTITLE takes precedence over
492 * automatic link conversion.
494 if ( !( $options->getDisableTitleConversion()
495 ||
isset( $this->mDoubleUnderscores
['nocontentconvert'] )
496 ||
isset( $this->mDoubleUnderscores
['notitleconvert'] )
497 ||
$this->mOutput
->getDisplayTitle() !== false )
499 $convruletitle = $this->getTargetLanguage()->getConvRuleTitle();
500 if ( $convruletitle ) {
501 $this->mOutput
->setTitleText( $convruletitle );
503 $titleText = $this->getTargetLanguage()->convertTitle( $title );
504 $this->mOutput
->setTitleText( $titleText );
508 # Compute runtime adaptive expiry if set
509 $this->mOutput
->finalizeAdaptiveCacheExpiry();
511 # Warn if too many heavyweight parser functions were used
512 if ( $this->mExpensiveFunctionCount
> $this->mOptions
->getExpensiveParserFunctionLimit() ) {
513 $this->limitationWarn( 'expensive-parserfunction',
514 $this->mExpensiveFunctionCount
,
515 $this->mOptions
->getExpensiveParserFunctionLimit()
519 # Information on limits, for the benefit of users who try to skirt them
520 if ( $this->mOptions
->getEnableLimitReport() ) {
521 $text .= $this->makeLimitReport();
524 # Wrap non-interface parser output in a <div> so it can be targeted
526 $class = $this->mOptions
->getWrapOutputClass();
527 if ( $class !== false && !$this->mOptions
->getInterfaceMessage() ) {
528 $this->mOutput
->addWrapperDivClass( $class );
531 $this->mOutput
->setText( $text );
533 $this->mRevisionId
= $oldRevisionId;
534 $this->mRevisionObject
= $oldRevisionObject;
535 $this->mRevisionTimestamp
= $oldRevisionTimestamp;
536 $this->mRevisionUser
= $oldRevisionUser;
537 $this->mRevisionSize
= $oldRevisionSize;
538 $this->mInputSize
= false;
539 $this->currentRevisionCache
= null;
541 return $this->mOutput
;
545 * Set the limit report data in the current ParserOutput, and return the
546 * limit report HTML comment.
550 protected function makeLimitReport() {
551 $maxIncludeSize = $this->mOptions
->getMaxIncludeSize();
553 $cpuTime = $this->mOutput
->getTimeSinceStart( 'cpu' );
554 if ( $cpuTime !== null ) {
555 $this->mOutput
->setLimitReportData( 'limitreport-cputime',
556 sprintf( "%.3f", $cpuTime )
560 $wallTime = $this->mOutput
->getTimeSinceStart( 'wall' );
561 $this->mOutput
->setLimitReportData( 'limitreport-walltime',
562 sprintf( "%.3f", $wallTime )
565 $this->mOutput
->setLimitReportData( 'limitreport-ppvisitednodes',
566 [ $this->mPPNodeCount
, $this->mOptions
->getMaxPPNodeCount() ]
568 $this->mOutput
->setLimitReportData( 'limitreport-ppgeneratednodes',
569 [ $this->mGeneratedPPNodeCount
, $this->mOptions
->getMaxGeneratedPPNodeCount() ]
571 $this->mOutput
->setLimitReportData( 'limitreport-postexpandincludesize',
572 [ $this->mIncludeSizes
['post-expand'], $maxIncludeSize ]
574 $this->mOutput
->setLimitReportData( 'limitreport-templateargumentsize',
575 [ $this->mIncludeSizes
['arg'], $maxIncludeSize ]
577 $this->mOutput
->setLimitReportData( 'limitreport-expansiondepth',
578 [ $this->mHighestExpansionDepth
, $this->mOptions
->getMaxPPExpandDepth() ]
580 $this->mOutput
->setLimitReportData( 'limitreport-expensivefunctioncount',
581 [ $this->mExpensiveFunctionCount
, $this->mOptions
->getExpensiveParserFunctionLimit() ]
584 foreach ( $this->mStripState
->getLimitReport() as list( $key, $value ) ) {
585 $this->mOutput
->setLimitReportData( $key, $value );
588 Hooks
::run( 'ParserLimitReportPrepare', [ $this, $this->mOutput
] );
590 $limitReport = "NewPP limit report\n";
591 if ( $this->siteConfig
->get( 'ShowHostnames' ) ) {
592 $limitReport .= 'Parsed by ' . wfHostname() . "\n";
594 $limitReport .= 'Cached time: ' . $this->mOutput
->getCacheTime() . "\n";
595 $limitReport .= 'Cache expiry: ' . $this->mOutput
->getCacheExpiry() . "\n";
596 $limitReport .= 'Dynamic content: ' .
597 ( $this->mOutput
->hasDynamicContent() ?
'true' : 'false' ) .
600 foreach ( $this->mOutput
->getLimitReportData() as $key => $value ) {
601 if ( Hooks
::run( 'ParserLimitReportFormat',
602 [ $key, &$value, &$limitReport, false, false ]
604 $keyMsg = wfMessage( $key )->inLanguage( 'en' )->useDatabase( false );
605 $valueMsg = wfMessage( [ "$key-value-text", "$key-value" ] )
606 ->inLanguage( 'en' )->useDatabase( false );
607 if ( !$valueMsg->exists() ) {
608 $valueMsg = new RawMessage( '$1' );
610 if ( !$keyMsg->isDisabled() && !$valueMsg->isDisabled() ) {
611 $valueMsg->params( $value );
612 $limitReport .= "{$keyMsg->text()}: {$valueMsg->text()}\n";
616 // Since we're not really outputting HTML, decode the entities and
617 // then re-encode the things that need hiding inside HTML comments.
618 $limitReport = htmlspecialchars_decode( $limitReport );
620 // Sanitize for comment. Note '‐' in the replacement is U+2010,
621 // which looks much like the problematic '-'.
622 $limitReport = str_replace( [ '-', '&' ], [ '‐', '&' ], $limitReport );
623 $text = "\n<!-- \n$limitReport-->\n";
625 // Add on template profiling data in human/machine readable way
626 $dataByFunc = $this->mProfiler
->getFunctionStats();
627 uasort( $dataByFunc, function ( $a, $b ) {
628 return $b['real'] <=> $a['real']; // descending order
631 foreach ( array_slice( $dataByFunc, 0, 10 ) as $item ) {
632 $profileReport[] = sprintf( "%6.2f%% %8.3f %6d %s",
633 $item['%real'], $item['real'], $item['calls'],
634 htmlspecialchars( $item['name'] ) );
636 $text .= "<!--\nTransclusion expansion time report (%,ms,calls,template)\n";
637 $text .= implode( "\n", $profileReport ) . "\n-->\n";
639 $this->mOutput
->setLimitReportData( 'limitreport-timingprofile', $profileReport );
641 // Add other cache related metadata
642 if ( $this->siteConfig
->get( 'ShowHostnames' ) ) {
643 $this->mOutput
->setLimitReportData( 'cachereport-origin', wfHostname() );
645 $this->mOutput
->setLimitReportData( 'cachereport-timestamp',
646 $this->mOutput
->getCacheTime() );
647 $this->mOutput
->setLimitReportData( 'cachereport-ttl',
648 $this->mOutput
->getCacheExpiry() );
649 $this->mOutput
->setLimitReportData( 'cachereport-transientcontent',
650 $this->mOutput
->hasDynamicContent() );
652 if ( $this->mGeneratedPPNodeCount
> $this->mOptions
->getMaxGeneratedPPNodeCount() / 10 ) {
653 wfDebugLog( 'generated-pp-node-count', $this->mGeneratedPPNodeCount
. ' ' .
654 $this->mTitle
->getPrefixedDBkey() );
660 * Half-parse wikitext to half-parsed HTML. This recursive parser entry point
661 * can be called from an extension tag hook.
663 * The output of this function IS NOT SAFE PARSED HTML; it is "half-parsed"
664 * instead, which means that lists and links have not been fully parsed yet,
665 * and strip markers are still present.
667 * Use recursiveTagParseFully() to fully parse wikitext to output-safe HTML.
669 * Use this function if you're a parser tag hook and you want to parse
670 * wikitext before or after applying additional transformations, and you
671 * intend to *return the result as hook output*, which will cause it to go
672 * through the rest of parsing process automatically.
674 * If $frame is not provided, then template variables (e.g., {{{1}}}) within
675 * $text are not expanded
677 * @param string $text Text extension wants to have parsed
678 * @param-taint $text escapes_htmlnoent
679 * @param bool|PPFrame $frame The frame to use for expanding any template variables
680 * @return string UNSAFE half-parsed HTML
681 * @return-taint escaped
683 public function recursiveTagParse( $text, $frame = false ) {
684 // Avoid PHP 7.1 warning from passing $this by reference
686 Hooks
::run( 'ParserBeforeStrip', [ &$parser, &$text, &$this->mStripState
] );
687 Hooks
::run( 'ParserAfterStrip', [ &$parser, &$text, &$this->mStripState
] );
688 $text = $this->internalParse( $text, false, $frame );
693 * Fully parse wikitext to fully parsed HTML. This recursive parser entry
694 * point can be called from an extension tag hook.
696 * The output of this function is fully-parsed HTML that is safe for output.
697 * If you're a parser tag hook, you might want to use recursiveTagParse()
700 * If $frame is not provided, then template variables (e.g., {{{1}}}) within
701 * $text are not expanded
705 * @param string $text Text extension wants to have parsed
706 * @param-taint $text escapes_htmlnoent
707 * @param bool|PPFrame $frame The frame to use for expanding any template variables
708 * @return string Fully parsed HTML
709 * @return-taint escaped
711 public function recursiveTagParseFully( $text, $frame = false ) {
712 $text = $this->recursiveTagParse( $text, $frame );
713 $text = $this->internalParseHalfParsed( $text, false );
718 * Expand templates and variables in the text, producing valid, static wikitext.
719 * Also removes comments.
720 * Do not call this function recursively.
721 * @param string $text
722 * @param Title|null $title
723 * @param ParserOptions $options
724 * @param int|null $revid
725 * @param bool|PPFrame $frame
726 * @return mixed|string
728 public function preprocess( $text, Title
$title = null,
729 ParserOptions
$options, $revid = null, $frame = false
731 $magicScopeVariable = $this->lock();
732 $this->startParse( $title, $options, self
::OT_PREPROCESS
, true );
733 if ( $revid !== null ) {
734 $this->mRevisionId
= $revid;
736 // Avoid PHP 7.1 warning from passing $this by reference
738 Hooks
::run( 'ParserBeforeStrip', [ &$parser, &$text, &$this->mStripState
] );
739 Hooks
::run( 'ParserAfterStrip', [ &$parser, &$text, &$this->mStripState
] );
740 $text = $this->replaceVariables( $text, $frame );
741 $text = $this->mStripState
->unstripBoth( $text );
746 * Recursive parser entry point that can be called from an extension tag
749 * @param string $text Text to be expanded
750 * @param bool|PPFrame $frame The frame to use for expanding any template variables
754 public function recursivePreprocess( $text, $frame = false ) {
755 $text = $this->replaceVariables( $text, $frame );
756 $text = $this->mStripState
->unstripBoth( $text );
761 * Process the wikitext for the "?preload=" feature. (T7210)
763 * "<noinclude>", "<includeonly>" etc. are parsed as for template
764 * transclusion, comments, templates, arguments, tags hooks and parser
765 * functions are untouched.
767 * @param string $text
768 * @param Title $title
769 * @param ParserOptions $options
770 * @param array $params
773 public function getPreloadText( $text, Title
$title, ParserOptions
$options, $params = [] ) {
774 $msg = new RawMessage( $text );
775 $text = $msg->params( $params )->plain();
777 # Parser (re)initialisation
778 $magicScopeVariable = $this->lock();
779 $this->startParse( $title, $options, self
::OT_PLAIN
, true );
781 $flags = PPFrame
::NO_ARGS | PPFrame
::NO_TEMPLATES
;
782 $dom = $this->preprocessToDom( $text, self
::PTD_FOR_INCLUSION
);
783 $text = $this->getPreprocessor()->newFrame()->expand( $dom, $flags );
784 $text = $this->mStripState
->unstripBoth( $text );
789 * Set the current user.
790 * Should only be used when doing pre-save transform.
792 * @param User|null $user User object or null (to reset)
794 public function setUser( $user ) {
795 $this->mUser
= $user;
799 * Set the context title
803 public function setTitle( $t ) {
805 $t = Title
::newFromText( 'NO TITLE' );
808 if ( $t->hasFragment() ) {
809 # Strip the fragment to avoid various odd effects
810 $this->mTitle
= $t->createFragmentTarget( '' );
817 * Accessor for the Title object
821 public function getTitle() {
822 return $this->mTitle
;
826 * Accessor/mutator for the Title object
828 * @param Title|null $x Title object or null to just get the current one
831 public function Title( $x = null ) {
832 return wfSetVar( $this->mTitle
, $x );
836 * Set the output type
838 * @param int $ot New value
840 public function setOutputType( $ot ) {
841 $this->mOutputType
= $ot;
844 'html' => $ot == self
::OT_HTML
,
845 'wiki' => $ot == self
::OT_WIKI
,
846 'pre' => $ot == self
::OT_PREPROCESS
,
847 'plain' => $ot == self
::OT_PLAIN
,
852 * Accessor/mutator for the output type
854 * @param int|null $x New value or null to just get the current one
857 public function OutputType( $x = null ) {
858 return wfSetVar( $this->mOutputType
, $x );
862 * Get the ParserOutput object
864 * @return ParserOutput
866 public function getOutput() {
867 return $this->mOutput
;
871 * Get the ParserOptions object
873 * @return ParserOptions
875 public function getOptions() {
876 return $this->mOptions
;
880 * Accessor/mutator for the ParserOptions object
882 * @param ParserOptions|null $x New value or null to just get the current one
883 * @return ParserOptions Current ParserOptions object
885 public function Options( $x = null ) {
886 return wfSetVar( $this->mOptions
, $x );
892 public function nextLinkID() {
893 return $this->mLinkID++
;
899 public function setLinkID( $id ) {
900 $this->mLinkID
= $id;
904 * Get a language object for use in parser functions such as {{FORMATNUM:}}
907 public function getFunctionLang() {
908 return $this->getTargetLanguage();
912 * Get the target language for the content being parsed. This is usually the
913 * language that the content is in.
917 * @throws MWException
920 public function getTargetLanguage() {
921 $target = $this->mOptions
->getTargetLanguage();
923 if ( $target !== null ) {
925 } elseif ( $this->mOptions
->getInterfaceMessage() ) {
926 return $this->mOptions
->getUserLangObj();
927 } elseif ( is_null( $this->mTitle
) ) {
928 throw new MWException( __METHOD__
. ': $this->mTitle is null' );
931 return $this->mTitle
->getPageLanguage();
935 * Get the language object for language conversion
936 * @deprecated since 1.32, just use getTargetLanguage()
937 * @return Language|null
939 public function getConverterLanguage() {
940 return $this->getTargetLanguage();
944 * Get a User object either from $this->mUser, if set, or from the
945 * ParserOptions object otherwise
949 public function getUser() {
950 if ( !is_null( $this->mUser
) ) {
953 return $this->mOptions
->getUser();
957 * Get a preprocessor object
959 * @return Preprocessor
961 public function getPreprocessor() {
962 if ( !isset( $this->mPreprocessor
) ) {
963 $class = $this->mPreprocessorClass
;
964 $this->mPreprocessor
= new $class( $this );
966 return $this->mPreprocessor
;
970 * Get a LinkRenderer instance to make links with
973 * @return LinkRenderer
975 public function getLinkRenderer() {
976 if ( !$this->mLinkRenderer
) {
977 $this->mLinkRenderer
= MediaWikiServices
::getInstance()
978 ->getLinkRendererFactory()->create();
979 $this->mLinkRenderer
->setStubThreshold(
980 $this->getOptions()->getStubThreshold()
984 return $this->mLinkRenderer
;
988 * Get the MagicWordFactory that this Parser is using
991 * @return MagicWordFactory
993 public function getMagicWordFactory() {
994 return $this->magicWordFactory
;
998 * Get the content language that this Parser is using
1003 public function getContentLanguage() {
1004 return $this->contLang
;
1008 * Replaces all occurrences of HTML-style comments and the given tags
1009 * in the text with a random marker and returns the next text. The output
1010 * parameter $matches will be an associative array filled with data in
1017 * [ 'param' => 'x' ],
1018 * '<element param="x">tag content</element>' ]
1021 * @param array $elements List of element names. Comments are always extracted.
1022 * @param string $text Source text string.
1023 * @param array &$matches Out parameter, Array: extracted tags
1024 * @return string Stripped text
1026 public static function extractTagsAndParams( $elements, $text, &$matches ) {
1031 $taglist = implode( '|', $elements );
1032 $start = "/<($taglist)(\\s+[^>]*?|\\s*?)(\/?>)|<(!--)/i";
1034 while ( $text != '' ) {
1035 $p = preg_split( $start, $text, 2, PREG_SPLIT_DELIM_CAPTURE
);
1037 if ( count( $p ) < 5 ) {
1040 if ( count( $p ) > 5 ) {
1049 $attributes = $p[2];
1054 $marker = self
::MARKER_PREFIX
. "-$element-" . sprintf( '%08X', $n++
) . self
::MARKER_SUFFIX
;
1055 $stripped .= $marker;
1057 if ( $close === '/>' ) {
1058 # Empty element tag, <tag />
1063 if ( $element === '!--' ) {
1066 $end = "/(<\\/$element\\s*>)/i";
1068 $q = preg_split( $end, $inside, 2, PREG_SPLIT_DELIM_CAPTURE
);
1070 if ( count( $q ) < 3 ) {
1071 # No end tag -- let it run out to the end of the text.
1080 $matches[$marker] = [ $element,
1082 Sanitizer
::decodeTagAttributes( $attributes ),
1083 "<$element$attributes$close$content$tail" ];
1089 * Get a list of strippable XML-like elements
1093 public function getStripList() {
1094 return $this->mStripList
;
1098 * Add an item to the strip state
1099 * Returns the unique tag which must be inserted into the stripped text
1100 * The tag will be replaced with the original text in unstrip()
1102 * @param string $text
1106 public function insertStripItem( $text ) {
1107 $marker = self
::MARKER_PREFIX
. "-item-{$this->mMarkerIndex}-" . self
::MARKER_SUFFIX
;
1108 $this->mMarkerIndex++
;
1109 $this->mStripState
->addGeneral( $marker, $text );
1114 * parse the wiki syntax used to render tables
1117 * @param string $text
1120 public function doTableStuff( $text ) {
1121 $lines = StringUtils
::explode( "\n", $text );
1123 $td_history = []; # Is currently a td tag open?
1124 $last_tag_history = []; # Save history of last lag activated (td, th or caption)
1125 $tr_history = []; # Is currently a tr tag open?
1126 $tr_attributes = []; # history of tr attributes
1127 $has_opened_tr = []; # Did this table open a <tr> element?
1128 $indent_level = 0; # indent level of the table
1130 foreach ( $lines as $outLine ) {
1131 $line = trim( $outLine );
1133 if ( $line === '' ) { # empty line, go to next line
1134 $out .= $outLine . "\n";
1138 $first_character = $line[0];
1139 $first_two = substr( $line, 0, 2 );
1142 if ( preg_match( '/^(:*)\s*\{\|(.*)$/', $line, $matches ) ) {
1143 # First check if we are starting a new table
1144 $indent_level = strlen( $matches[1] );
1146 $attributes = $this->mStripState
->unstripBoth( $matches[2] );
1147 $attributes = Sanitizer
::fixTagAttributes( $attributes, 'table' );
1149 $outLine = str_repeat( '<dl><dd>', $indent_level ) . "<table{$attributes}>";
1150 array_push( $td_history, false );
1151 array_push( $last_tag_history, '' );
1152 array_push( $tr_history, false );
1153 array_push( $tr_attributes, '' );
1154 array_push( $has_opened_tr, false );
1155 } elseif ( count( $td_history ) == 0 ) {
1156 # Don't do any of the following
1157 $out .= $outLine . "\n";
1159 } elseif ( $first_two === '|}' ) {
1160 # We are ending a table
1161 $line = '</table>' . substr( $line, 2 );
1162 $last_tag = array_pop( $last_tag_history );
1164 if ( !array_pop( $has_opened_tr ) ) {
1165 $line = "<tr><td></td></tr>{$line}";
1168 if ( array_pop( $tr_history ) ) {
1169 $line = "</tr>{$line}";
1172 if ( array_pop( $td_history ) ) {
1173 $line = "</{$last_tag}>{$line}";
1175 array_pop( $tr_attributes );
1176 if ( $indent_level > 0 ) {
1177 $outLine = rtrim( $line ) . str_repeat( '</dd></dl>', $indent_level );
1181 } elseif ( $first_two === '|-' ) {
1182 # Now we have a table row
1183 $line = preg_replace( '#^\|-+#', '', $line );
1185 # Whats after the tag is now only attributes
1186 $attributes = $this->mStripState
->unstripBoth( $line );
1187 $attributes = Sanitizer
::fixTagAttributes( $attributes, 'tr' );
1188 array_pop( $tr_attributes );
1189 array_push( $tr_attributes, $attributes );
1192 $last_tag = array_pop( $last_tag_history );
1193 array_pop( $has_opened_tr );
1194 array_push( $has_opened_tr, true );
1196 if ( array_pop( $tr_history ) ) {
1200 if ( array_pop( $td_history ) ) {
1201 $line = "</{$last_tag}>{$line}";
1205 array_push( $tr_history, false );
1206 array_push( $td_history, false );
1207 array_push( $last_tag_history, '' );
1208 } elseif ( $first_character === '|'
1209 ||
$first_character === '!'
1210 ||
$first_two === '|+'
1212 # This might be cell elements, td, th or captions
1213 if ( $first_two === '|+' ) {
1214 $first_character = '+';
1215 $line = substr( $line, 2 );
1217 $line = substr( $line, 1 );
1220 // Implies both are valid for table headings.
1221 if ( $first_character === '!' ) {
1222 $line = StringUtils
::replaceMarkup( '!!', '||', $line );
1225 # Split up multiple cells on the same line.
1226 # FIXME : This can result in improper nesting of tags processed
1227 # by earlier parser steps.
1228 $cells = explode( '||', $line );
1232 # Loop through each table cell
1233 foreach ( $cells as $cell ) {
1235 if ( $first_character !== '+' ) {
1236 $tr_after = array_pop( $tr_attributes );
1237 if ( !array_pop( $tr_history ) ) {
1238 $previous = "<tr{$tr_after}>\n";
1240 array_push( $tr_history, true );
1241 array_push( $tr_attributes, '' );
1242 array_pop( $has_opened_tr );
1243 array_push( $has_opened_tr, true );
1246 $last_tag = array_pop( $last_tag_history );
1248 if ( array_pop( $td_history ) ) {
1249 $previous = "</{$last_tag}>\n{$previous}";
1252 if ( $first_character === '|' ) {
1254 } elseif ( $first_character === '!' ) {
1256 } elseif ( $first_character === '+' ) {
1257 $last_tag = 'caption';
1262 array_push( $last_tag_history, $last_tag );
1264 # A cell could contain both parameters and data
1265 $cell_data = explode( '|', $cell, 2 );
1267 # T2553: Note that a '|' inside an invalid link should not
1268 # be mistaken as delimiting cell parameters
1269 # Bug T153140: Neither should language converter markup.
1270 if ( preg_match( '/\[\[|-\{/', $cell_data[0] ) === 1 ) {
1271 $cell = "{$previous}<{$last_tag}>" . trim( $cell );
1272 } elseif ( count( $cell_data ) == 1 ) {
1273 // Whitespace in cells is trimmed
1274 $cell = "{$previous}<{$last_tag}>" . trim( $cell_data[0] );
1276 $attributes = $this->mStripState
->unstripBoth( $cell_data[0] );
1277 $attributes = Sanitizer
::fixTagAttributes( $attributes, $last_tag );
1278 // Whitespace in cells is trimmed
1279 $cell = "{$previous}<{$last_tag}{$attributes}>" . trim( $cell_data[1] );
1283 array_push( $td_history, true );
1286 $out .= $outLine . "\n";
1289 # Closing open td, tr && table
1290 while ( count( $td_history ) > 0 ) {
1291 if ( array_pop( $td_history ) ) {
1294 if ( array_pop( $tr_history ) ) {
1297 if ( !array_pop( $has_opened_tr ) ) {
1298 $out .= "<tr><td></td></tr>\n";
1301 $out .= "</table>\n";
1304 # Remove trailing line-ending (b/c)
1305 if ( substr( $out, -1 ) === "\n" ) {
1306 $out = substr( $out, 0, -1 );
1309 # special case: don't return empty table
1310 if ( $out === "<table>\n<tr><td></td></tr>\n</table>" ) {
1318 * Helper function for parse() that transforms wiki markup into half-parsed
1319 * HTML. Only called for $mOutputType == self::OT_HTML.
1323 * @param string $text The text to parse
1324 * @param-taint $text escapes_html
1325 * @param bool $isMain Whether this is being called from the main parse() function
1326 * @param PPFrame|bool $frame A pre-processor frame
1330 public function internalParse( $text, $isMain = true, $frame = false ) {
1333 // Avoid PHP 7.1 warning from passing $this by reference
1336 # Hook to suspend the parser in this state
1337 if ( !Hooks
::run( 'ParserBeforeInternalParse', [ &$parser, &$text, &$this->mStripState
] ) ) {
1341 # if $frame is provided, then use $frame for replacing any variables
1343 # use frame depth to infer how include/noinclude tags should be handled
1344 # depth=0 means this is the top-level document; otherwise it's an included document
1345 if ( !$frame->depth
) {
1348 $flag = self
::PTD_FOR_INCLUSION
;
1350 $dom = $this->preprocessToDom( $text, $flag );
1351 $text = $frame->expand( $dom );
1353 # if $frame is not provided, then use old-style replaceVariables
1354 $text = $this->replaceVariables( $text );
1357 Hooks
::run( 'InternalParseBeforeSanitize', [ &$parser, &$text, &$this->mStripState
] );
1358 $text = Sanitizer
::removeHTMLtags(
1360 [ $this, 'attributeStripCallback' ],
1362 array_keys( $this->mTransparentTagHooks
),
1364 [ $this, 'addTrackingCategory' ]
1366 Hooks
::run( 'InternalParseBeforeLinks', [ &$parser, &$text, &$this->mStripState
] );
1368 # Tables need to come after variable replacement for things to work
1369 # properly; putting them before other transformations should keep
1370 # exciting things like link expansions from showing up in surprising
1372 $text = $this->doTableStuff( $text );
1374 $text = preg_replace( '/(^|\n)-----*/', '\\1<hr />', $text );
1376 $text = $this->doDoubleUnderscore( $text );
1378 $text = $this->doHeadings( $text );
1379 $text = $this->replaceInternalLinks( $text );
1380 $text = $this->doAllQuotes( $text );
1381 $text = $this->replaceExternalLinks( $text );
1383 # replaceInternalLinks may sometimes leave behind
1384 # absolute URLs, which have to be masked to hide them from replaceExternalLinks
1385 $text = str_replace( self
::MARKER_PREFIX
. 'NOPARSE', '', $text );
1387 $text = $this->doMagicLinks( $text );
1388 $text = $this->formatHeadings( $text, $origText, $isMain );
1394 * Helper function for parse() that transforms half-parsed HTML into fully
1397 * @param string $text
1398 * @param bool $isMain
1399 * @param bool $linestart
1402 private function internalParseHalfParsed( $text, $isMain = true, $linestart = true ) {
1403 $text = $this->mStripState
->unstripGeneral( $text );
1405 // Avoid PHP 7.1 warning from passing $this by reference
1409 Hooks
::run( 'ParserAfterUnstrip', [ &$parser, &$text ] );
1412 # Clean up special characters, only run once, next-to-last before doBlockLevels
1413 $text = Sanitizer
::armorFrenchSpaces( $text );
1415 $text = $this->doBlockLevels( $text, $linestart );
1417 $this->replaceLinkHolders( $text );
1420 * The input doesn't get language converted if
1422 * b) Content isn't converted
1423 * c) It's a conversion table
1424 * d) it is an interface message (which is in the user language)
1426 if ( !( $this->mOptions
->getDisableContentConversion()
1427 ||
isset( $this->mDoubleUnderscores
['nocontentconvert'] ) )
1429 if ( !$this->mOptions
->getInterfaceMessage() ) {
1430 # The position of the convert() call should not be changed. it
1431 # assumes that the links are all replaced and the only thing left
1432 # is the <nowiki> mark.
1433 $text = $this->getTargetLanguage()->convert( $text );
1437 $text = $this->mStripState
->unstripNoWiki( $text );
1440 Hooks
::run( 'ParserBeforeTidy', [ &$parser, &$text ] );
1443 $text = $this->replaceTransparentTags( $text );
1444 $text = $this->mStripState
->unstripGeneral( $text );
1446 $text = Sanitizer
::normalizeCharReferences( $text );
1448 if ( MWTidy
::isEnabled() ) {
1449 if ( $this->mOptions
->getTidy() ) {
1450 $text = MWTidy
::tidy( $text );
1453 # attempt to sanitize at least some nesting problems
1454 # (T4702 and quite a few others)
1455 # This code path is buggy and deprecated!
1456 wfDeprecated( 'disabling tidy', '1.33' );
1458 # ''Something [http://www.cool.com cool''] -->
1459 # <i>Something</i><a href="http://www.cool.com"..><i>cool></i></a>
1460 '/(<([bi])>)(<([bi])>)?([^<]*)(<\/?a[^<]*>)([^<]*)(<\/\\4>)?(<\/\\2>)/' =>
1461 '\\1\\3\\5\\8\\9\\6\\1\\3\\7\\8\\9',
1462 # fix up an anchor inside another anchor, only
1463 # at least for a single single nested link (T5695)
1464 '/(<a[^>]+>)([^<]*)(<a[^>]+>[^<]*)<\/a>(.*)<\/a>/' =>
1465 '\\1\\2</a>\\3</a>\\1\\4</a>',
1466 # fix div inside inline elements- doBlockLevels won't wrap a line which
1467 # contains a div, so fix it up here; replace
1468 # div with escaped text
1469 '/(<([aib]) [^>]+>)([^<]*)(<div([^>]*)>)(.*)(<\/div>)([^<]*)(<\/\\2>)/' =>
1470 '\\1\\3<div\\5>\\6</div>\\8\\9',
1471 # remove empty italic or bold tag pairs, some
1472 # introduced by rules above
1473 '/<([bi])><\/\\1>/' => '',
1476 $text = preg_replace(
1477 array_keys( $tidyregs ),
1478 array_values( $tidyregs ),
1483 Hooks
::run( 'ParserAfterTidy', [ &$parser, &$text ] );
1490 * Replace special strings like "ISBN xxx" and "RFC xxx" with
1491 * magic external links.
1496 * @param string $text
1500 public function doMagicLinks( $text ) {
1501 $prots = wfUrlProtocolsWithoutProtRel();
1502 $urlChar = self
::EXT_LINK_URL_CLASS
;
1503 $addr = self
::EXT_LINK_ADDR
;
1504 $space = self
::SPACE_NOT_NL
; # non-newline space
1505 $spdash = "(?:-|$space)"; # a dash or a non-newline space
1506 $spaces = "$space++"; # possessive match of 1 or more spaces
1507 $text = preg_replace_callback(
1509 (<a[ \t\r\n>].*?</a>) | # m[1]: Skip link text
1510 (<.*?>) | # m[2]: Skip stuff inside HTML elements' . "
1511 (\b # m[3]: Free external links
1513 ($addr$urlChar*) # m[4]: Post-protocol path
1515 \b(?:RFC|PMID) $spaces # m[5]: RFC or PMID, capture number
1517 \bISBN $spaces ( # m[6]: ISBN, capture number
1518 (?: 97[89] $spdash? )? # optional 13-digit ISBN prefix
1519 (?: [0-9] $spdash? ){9} # 9 digits with opt. delimiters
1520 [0-9Xx] # check digit
1522 )!xu", [ $this, 'magicLinkCallback' ], $text );
1527 * @throws MWException
1529 * @return string HTML
1531 public function magicLinkCallback( $m ) {
1532 if ( isset( $m[1] ) && $m[1] !== '' ) {
1535 } elseif ( isset( $m[2] ) && $m[2] !== '' ) {
1538 } elseif ( isset( $m[3] ) && $m[3] !== '' ) {
1539 # Free external link
1540 return $this->makeFreeExternalLink( $m[0], strlen( $m[4] ) );
1541 } elseif ( isset( $m[5] ) && $m[5] !== '' ) {
1543 if ( substr( $m[0], 0, 3 ) === 'RFC' ) {
1544 if ( !$this->mOptions
->getMagicRFCLinks() ) {
1549 $cssClass = 'mw-magiclink-rfc';
1550 $trackingCat = 'magiclink-tracking-rfc';
1552 } elseif ( substr( $m[0], 0, 4 ) === 'PMID' ) {
1553 if ( !$this->mOptions
->getMagicPMIDLinks() ) {
1557 $urlmsg = 'pubmedurl';
1558 $cssClass = 'mw-magiclink-pmid';
1559 $trackingCat = 'magiclink-tracking-pmid';
1562 throw new MWException( __METHOD__
. ': unrecognised match type "' .
1563 substr( $m[0], 0, 20 ) . '"' );
1565 $url = wfMessage( $urlmsg, $id )->inContentLanguage()->text();
1566 $this->addTrackingCategory( $trackingCat );
1567 return Linker
::makeExternalLink( $url, "{$keyword} {$id}", true, $cssClass, [], $this->mTitle
);
1568 } elseif ( isset( $m[6] ) && $m[6] !== ''
1569 && $this->mOptions
->getMagicISBNLinks()
1573 $space = self
::SPACE_NOT_NL
; # non-newline space
1574 $isbn = preg_replace( "/$space/", ' ', $isbn );
1575 $num = strtr( $isbn, [
1580 $this->addTrackingCategory( 'magiclink-tracking-isbn' );
1581 return $this->getLinkRenderer()->makeKnownLink(
1582 SpecialPage
::getTitleFor( 'Booksources', $num ),
1585 'class' => 'internal mw-magiclink-isbn',
1586 'title' => false // suppress title attribute
1595 * Make a free external link, given a user-supplied URL
1597 * @param string $url
1598 * @param int $numPostProto
1599 * The number of characters after the protocol.
1600 * @return string HTML
1603 public function makeFreeExternalLink( $url, $numPostProto ) {
1606 # The characters '<' and '>' (which were escaped by
1607 # removeHTMLtags()) should not be included in
1608 # URLs, per RFC 2396.
1609 # Make terminate a URL as well (bug T84937)
1612 '/&(lt|gt|nbsp|#x0*(3[CcEe]|[Aa]0)|#0*(60|62|160));/',
1617 $trail = substr( $url, $m2[0][1] ) . $trail;
1618 $url = substr( $url, 0, $m2[0][1] );
1621 # Move trailing punctuation to $trail
1623 # If there is no left bracket, then consider right brackets fair game too
1624 if ( strpos( $url, '(' ) === false ) {
1628 $urlRev = strrev( $url );
1629 $numSepChars = strspn( $urlRev, $sep );
1630 # Don't break a trailing HTML entity by moving the ; into $trail
1631 # This is in hot code, so use substr_compare to avoid having to
1632 # create a new string object for the comparison
1633 if ( $numSepChars && substr_compare( $url, ";", -$numSepChars, 1 ) === 0 ) {
1634 # more optimization: instead of running preg_match with a $
1635 # anchor, which can be slow, do the match on the reversed
1636 # string starting at the desired offset.
1637 # un-reversed regexp is: /&([a-z]+|#x[\da-f]+|#\d+)$/i
1638 if ( preg_match( '/\G([a-z]+|[\da-f]+x#|\d+#)&/i', $urlRev, $m2, 0, $numSepChars ) ) {
1642 if ( $numSepChars ) {
1643 $trail = substr( $url, -$numSepChars ) . $trail;
1644 $url = substr( $url, 0, -$numSepChars );
1647 # Verify that we still have a real URL after trail removal, and
1648 # not just lone protocol
1649 if ( strlen( $trail ) >= $numPostProto ) {
1650 return $url . $trail;
1653 $url = Sanitizer
::cleanUrl( $url );
1655 # Is this an external image?
1656 $text = $this->maybeMakeExternalImage( $url );
1657 if ( $text === false ) {
1658 # Not an image, make a link
1659 $text = Linker
::makeExternalLink( $url,
1660 $this->getTargetLanguage()->getConverter()->markNoConversion( $url ),
1662 $this->getExternalLinkAttribs( $url ), $this->mTitle
);
1663 # Register it in the output object...
1664 $this->mOutput
->addExternalLink( $url );
1666 return $text . $trail;
1670 * Parse headers and return html
1674 * @param string $text
1678 public function doHeadings( $text ) {
1679 for ( $i = 6; $i >= 1; --$i ) {
1680 $h = str_repeat( '=', $i );
1681 // Trim non-newline whitespace from headings
1682 // Using \s* will break for: "==\n===\n" and parse as <h2>=</h2>
1683 $text = preg_replace( "/^(?:$h)[ \\t]*(.+?)[ \\t]*(?:$h)\\s*$/m", "<h$i>\\1</h$i>", $text );
1689 * Replace single quotes with HTML markup
1692 * @param string $text
1694 * @return string The altered text
1696 public function doAllQuotes( $text ) {
1698 $lines = StringUtils
::explode( "\n", $text );
1699 foreach ( $lines as $line ) {
1700 $outtext .= $this->doQuotes( $line ) . "\n";
1702 $outtext = substr( $outtext, 0, -1 );
1707 * Helper function for doAllQuotes()
1709 * @param string $text
1713 public function doQuotes( $text ) {
1714 $arr = preg_split( "/(''+)/", $text, -1, PREG_SPLIT_DELIM_CAPTURE
);
1715 $countarr = count( $arr );
1716 if ( $countarr == 1 ) {
1720 // First, do some preliminary work. This may shift some apostrophes from
1721 // being mark-up to being text. It also counts the number of occurrences
1722 // of bold and italics mark-ups.
1725 for ( $i = 1; $i < $countarr; $i +
= 2 ) {
1726 $thislen = strlen( $arr[$i] );
1727 // If there are ever four apostrophes, assume the first is supposed to
1728 // be text, and the remaining three constitute mark-up for bold text.
1729 // (T15227: ''''foo'''' turns into ' ''' foo ' ''')
1730 if ( $thislen == 4 ) {
1731 $arr[$i - 1] .= "'";
1734 } elseif ( $thislen > 5 ) {
1735 // If there are more than 5 apostrophes in a row, assume they're all
1736 // text except for the last 5.
1737 // (T15227: ''''''foo'''''' turns into ' ''''' foo ' ''''')
1738 $arr[$i - 1] .= str_repeat( "'", $thislen - 5 );
1742 // Count the number of occurrences of bold and italics mark-ups.
1743 if ( $thislen == 2 ) {
1745 } elseif ( $thislen == 3 ) {
1747 } elseif ( $thislen == 5 ) {
1753 // If there is an odd number of both bold and italics, it is likely
1754 // that one of the bold ones was meant to be an apostrophe followed
1755 // by italics. Which one we cannot know for certain, but it is more
1756 // likely to be one that has a single-letter word before it.
1757 if ( ( $numbold %
2 == 1 ) && ( $numitalics %
2 == 1 ) ) {
1758 $firstsingleletterword = -1;
1759 $firstmultiletterword = -1;
1761 for ( $i = 1; $i < $countarr; $i +
= 2 ) {
1762 if ( strlen( $arr[$i] ) == 3 ) {
1763 $x1 = substr( $arr[$i - 1], -1 );
1764 $x2 = substr( $arr[$i - 1], -2, 1 );
1765 if ( $x1 === ' ' ) {
1766 if ( $firstspace == -1 ) {
1769 } elseif ( $x2 === ' ' ) {
1770 $firstsingleletterword = $i;
1771 // if $firstsingleletterword is set, we don't
1772 // look at the other options, so we can bail early.
1775 if ( $firstmultiletterword == -1 ) {
1776 $firstmultiletterword = $i;
1782 // If there is a single-letter word, use it!
1783 if ( $firstsingleletterword > -1 ) {
1784 $arr[$firstsingleletterword] = "''";
1785 $arr[$firstsingleletterword - 1] .= "'";
1786 } elseif ( $firstmultiletterword > -1 ) {
1787 // If not, but there's a multi-letter word, use that one.
1788 $arr[$firstmultiletterword] = "''";
1789 $arr[$firstmultiletterword - 1] .= "'";
1790 } elseif ( $firstspace > -1 ) {
1791 // ... otherwise use the first one that has neither.
1792 // (notice that it is possible for all three to be -1 if, for example,
1793 // there is only one pentuple-apostrophe in the line)
1794 $arr[$firstspace] = "''";
1795 $arr[$firstspace - 1] .= "'";
1799 // Now let's actually convert our apostrophic mush to HTML!
1804 foreach ( $arr as $r ) {
1805 if ( ( $i %
2 ) == 0 ) {
1806 if ( $state === 'both' ) {
1812 $thislen = strlen( $r );
1813 if ( $thislen == 2 ) {
1814 if ( $state === 'i' ) {
1817 } elseif ( $state === 'bi' ) {
1820 } elseif ( $state === 'ib' ) {
1821 $output .= '</b></i><b>';
1823 } elseif ( $state === 'both' ) {
1824 $output .= '<b><i>' . $buffer . '</i>';
1826 } else { // $state can be 'b' or ''
1830 } elseif ( $thislen == 3 ) {
1831 if ( $state === 'b' ) {
1834 } elseif ( $state === 'bi' ) {
1835 $output .= '</i></b><i>';
1837 } elseif ( $state === 'ib' ) {
1840 } elseif ( $state === 'both' ) {
1841 $output .= '<i><b>' . $buffer . '</b>';
1843 } else { // $state can be 'i' or ''
1847 } elseif ( $thislen == 5 ) {
1848 if ( $state === 'b' ) {
1849 $output .= '</b><i>';
1851 } elseif ( $state === 'i' ) {
1852 $output .= '</i><b>';
1854 } elseif ( $state === 'bi' ) {
1855 $output .= '</i></b>';
1857 } elseif ( $state === 'ib' ) {
1858 $output .= '</b></i>';
1860 } elseif ( $state === 'both' ) {
1861 $output .= '<i><b>' . $buffer . '</b></i>';
1863 } else { // ($state == '')
1871 // Now close all remaining tags. Notice that the order is important.
1872 if ( $state === 'b' ||
$state === 'ib' ) {
1875 if ( $state === 'i' ||
$state === 'bi' ||
$state === 'ib' ) {
1878 if ( $state === 'bi' ) {
1881 // There might be lonely ''''', so make sure we have a buffer
1882 if ( $state === 'both' && $buffer ) {
1883 $output .= '<b><i>' . $buffer . '</i></b>';
1889 * Replace external links (REL)
1891 * Note: this is all very hackish and the order of execution matters a lot.
1892 * Make sure to run tests/parser/parserTests.php if you change this code.
1896 * @param string $text
1898 * @throws MWException
1901 public function replaceExternalLinks( $text ) {
1902 $bits = preg_split( $this->mExtLinkBracketedRegex
, $text, -1, PREG_SPLIT_DELIM_CAPTURE
);
1903 if ( $bits === false ) {
1904 throw new MWException( "PCRE needs to be compiled with "
1905 . "--enable-unicode-properties in order for MediaWiki to function" );
1907 $s = array_shift( $bits );
1910 while ( $i < count( $bits ) ) {
1913 $text = $bits[$i++
];
1914 $trail = $bits[$i++
];
1916 # The characters '<' and '>' (which were escaped by
1917 # removeHTMLtags()) should not be included in
1918 # URLs, per RFC 2396.
1920 if ( preg_match( '/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE
) ) {
1921 $text = substr( $url, $m2[0][1] ) . ' ' . $text;
1922 $url = substr( $url, 0, $m2[0][1] );
1925 # If the link text is an image URL, replace it with an <img> tag
1926 # This happened by accident in the original parser, but some people used it extensively
1927 $img = $this->maybeMakeExternalImage( $text );
1928 if ( $img !== false ) {
1934 # Set linktype for CSS
1937 # No link text, e.g. [http://domain.tld/some.link]
1938 if ( $text == '' ) {
1940 $langObj = $this->getTargetLanguage();
1941 $text = '[' . $langObj->formatNum( ++
$this->mAutonumber
) . ']';
1942 $linktype = 'autonumber';
1944 # Have link text, e.g. [http://domain.tld/some.link text]s
1946 list( $dtrail, $trail ) = Linker
::splitTrail( $trail );
1949 // Excluding protocol-relative URLs may avoid many false positives.
1950 if ( preg_match( '/^(?:' . wfUrlProtocolsWithoutProtRel() . ')/', $text ) ) {
1951 $text = $this->getTargetLanguage()->getConverter()->markNoConversion( $text );
1954 $url = Sanitizer
::cleanUrl( $url );
1956 # Use the encoded URL
1957 # This means that users can paste URLs directly into the text
1958 # Funny characters like ö aren't valid in URLs anyway
1959 # This was changed in August 2004
1960 $s .= Linker
::makeExternalLink( $url, $text, false, $linktype,
1961 $this->getExternalLinkAttribs( $url ), $this->mTitle
) . $dtrail . $trail;
1963 # Register link in the output object.
1964 $this->mOutput
->addExternalLink( $url );
1971 * Get the rel attribute for a particular external link.
1974 * @param string|bool $url Optional URL, to extract the domain from for rel =>
1975 * nofollow if appropriate
1976 * @param Title|null $title Optional Title, for wgNoFollowNsExceptions lookups
1977 * @return string|null Rel attribute for $url
1979 public static function getExternalLinkRel( $url = false, $title = null ) {
1980 global $wgNoFollowLinks, $wgNoFollowNsExceptions, $wgNoFollowDomainExceptions;
1981 $ns = $title ?
$title->getNamespace() : false;
1982 if ( $wgNoFollowLinks && !in_array( $ns, $wgNoFollowNsExceptions )
1983 && !wfMatchesDomainList( $url, $wgNoFollowDomainExceptions )
1991 * Get an associative array of additional HTML attributes appropriate for a
1992 * particular external link. This currently may include rel => nofollow
1993 * (depending on configuration, namespace, and the URL's domain) and/or a
1994 * target attribute (depending on configuration).
1996 * @param string $url URL to extract the domain from for rel =>
1997 * nofollow if appropriate
1998 * @return array Associative array of HTML attributes
2000 public function getExternalLinkAttribs( $url ) {
2002 $rel = self
::getExternalLinkRel( $url, $this->mTitle
);
2004 $target = $this->mOptions
->getExternalLinkTarget();
2006 $attribs['target'] = $target;
2007 if ( !in_array( $target, [ '_self', '_parent', '_top' ] ) ) {
2008 // T133507. New windows can navigate parent cross-origin.
2009 // Including noreferrer due to lacking browser
2010 // support of noopener. Eventually noreferrer should be removed.
2011 if ( $rel !== '' ) {
2014 $rel .= 'noreferrer noopener';
2017 $attribs['rel'] = $rel;
2022 * Replace unusual escape codes in a URL with their equivalent characters
2024 * This generally follows the syntax defined in RFC 3986, with special
2025 * consideration for HTTP query strings.
2027 * @param string $url
2030 public static function normalizeLinkUrl( $url ) {
2031 # Test for RFC 3986 IPv6 syntax
2032 $scheme = '[a-z][a-z0-9+.-]*:';
2033 $userinfo = '(?:[a-z0-9\-._~!$&\'()*+,;=:]|%[0-9a-f]{2})*';
2034 $ipv6Host = '\\[((?:[0-9a-f:]|%3[0-A]|%[46][1-6])+)\\]';
2035 if ( preg_match( "<^(?:{$scheme})?//(?:{$userinfo}@)?{$ipv6Host}(?:[:/?#].*|)$>i", $url, $m ) &&
2036 IP
::isValid( rawurldecode( $m[1] ) )
2038 $isIPv6 = rawurldecode( $m[1] );
2043 # Make sure unsafe characters are encoded
2044 $url = preg_replace_callback( '/[\x00-\x20"<>\[\\\\\]^`{|}\x7F-\xFF]/',
2046 return rawurlencode( $m[0] );
2052 $end = strlen( $url );
2054 # Fragment part - 'fragment'
2055 $start = strpos( $url, '#' );
2056 if ( $start !== false && $start < $end ) {
2057 $ret = self
::normalizeUrlComponent(
2058 substr( $url, $start, $end - $start ), '"#%<>[\]^`{|}' ) . $ret;
2062 # Query part - 'query' minus &=+;
2063 $start = strpos( $url, '?' );
2064 if ( $start !== false && $start < $end ) {
2065 $ret = self
::normalizeUrlComponent(
2066 substr( $url, $start, $end - $start ), '"#%<>[\]^`{|}&=+;' ) . $ret;
2070 # Scheme and path part - 'pchar'
2071 # (we assume no userinfo or encoded colons in the host)
2072 $ret = self
::normalizeUrlComponent(
2073 substr( $url, 0, $end ), '"#%<>[\]^`{|}/?' ) . $ret;
2076 if ( $isIPv6 !== false ) {
2077 $ipv6Host = "%5B({$isIPv6})%5D";
2078 $ret = preg_replace(
2079 "<^((?:{$scheme})?//(?:{$userinfo}@)?){$ipv6Host}(?=[:/?#]|$)>i",
2088 private static function normalizeUrlComponent( $component, $unsafe ) {
2089 $callback = function ( $matches ) use ( $unsafe ) {
2090 $char = urldecode( $matches[0] );
2091 $ord = ord( $char );
2092 if ( $ord > 32 && $ord < 127 && strpos( $unsafe, $char ) === false ) {
2096 # Leave it escaped, but use uppercase for a-f
2097 return strtoupper( $matches[0] );
2100 return preg_replace_callback( '/%[0-9A-Fa-f]{2}/', $callback, $component );
2104 * make an image if it's allowed, either through the global
2105 * option, through the exception, or through the on-wiki whitelist
2107 * @param string $url
2111 private function maybeMakeExternalImage( $url ) {
2112 $imagesfrom = $this->mOptions
->getAllowExternalImagesFrom();
2113 $imagesexception = !empty( $imagesfrom );
2115 # $imagesfrom could be either a single string or an array of strings, parse out the latter
2116 if ( $imagesexception && is_array( $imagesfrom ) ) {
2117 $imagematch = false;
2118 foreach ( $imagesfrom as $match ) {
2119 if ( strpos( $url, $match ) === 0 ) {
2124 } elseif ( $imagesexception ) {
2125 $imagematch = ( strpos( $url, $imagesfrom ) === 0 );
2127 $imagematch = false;
2130 if ( $this->mOptions
->getAllowExternalImages()
2131 ||
( $imagesexception && $imagematch )
2133 if ( preg_match( self
::EXT_IMAGE_REGEX
, $url ) ) {
2135 $text = Linker
::makeExternalImage( $url );
2138 if ( !$text && $this->mOptions
->getEnableImageWhitelist()
2139 && preg_match( self
::EXT_IMAGE_REGEX
, $url )
2141 $whitelist = explode(
2143 wfMessage( 'external_image_whitelist' )->inContentLanguage()->text()
2146 foreach ( $whitelist as $entry ) {
2147 # Sanitize the regex fragment, make it case-insensitive, ignore blank entries/comments
2148 if ( strpos( $entry, '#' ) === 0 ||
$entry === '' ) {
2151 if ( preg_match( '/' . str_replace( '/', '\\/', $entry ) . '/i', $url ) ) {
2152 # Image matches a whitelist entry
2153 $text = Linker
::makeExternalImage( $url );
2162 * Process [[ ]] wikilinks
2166 * @return string Processed text
2170 public function replaceInternalLinks( $s ) {
2171 $this->mLinkHolders
->merge( $this->replaceInternalLinks2( $s ) );
2176 * Process [[ ]] wikilinks (RIL)
2178 * @throws MWException
2179 * @return LinkHolderArray
2183 public function replaceInternalLinks2( &$s ) {
2184 static $tc = false, $e1, $e1_img;
2185 # the % is needed to support urlencoded titles as well
2187 $tc = Title
::legalChars() . '#%';
2188 # Match a link having the form [[namespace:link|alternate]]trail
2189 $e1 = "/^([{$tc}]+)(?:\\|(.+?))?]](.*)\$/sD";
2190 # Match cases where there is no "]]", which might still be images
2191 $e1_img = "/^([{$tc}]+)\\|(.*)\$/sD";
2194 $holders = new LinkHolderArray( $this );
2196 # split the entire text string on occurrences of [[
2197 $a = StringUtils
::explode( '[[', ' ' . $s );
2198 # get the first element (all text up to first [[), and remove the space we added
2201 $line = $a->current(); # Workaround for broken ArrayIterator::next() that returns "void"
2202 $s = substr( $s, 1 );
2204 $useLinkPrefixExtension = $this->getTargetLanguage()->linkPrefixExtension();
2206 if ( $useLinkPrefixExtension ) {
2207 # Match the end of a line for a word that's not followed by whitespace,
2208 # e.g. in the case of 'The Arab al[[Razi]]', 'al' will be matched
2209 $charset = $this->contLang
->linkPrefixCharset();
2210 $e2 = "/^((?>.*[^$charset]|))(.+)$/sDu";
2213 if ( is_null( $this->mTitle
) ) {
2214 throw new MWException( __METHOD__
. ": \$this->mTitle is null\n" );
2216 $nottalk = !$this->mTitle
->isTalkPage();
2218 if ( $useLinkPrefixExtension ) {
2220 if ( preg_match( $e2, $s, $m ) ) {
2221 $first_prefix = $m[2];
2223 $first_prefix = false;
2229 $useSubpages = $this->areSubpagesAllowed();
2231 # Loop for each link
2232 for ( ; $line !== false && $line !== null; $a->next(), $line = $a->current() ) {
2233 # Check for excessive memory usage
2234 if ( $holders->isBig() ) {
2236 # Do the existence check, replace the link holders and clear the array
2237 $holders->replace( $s );
2241 if ( $useLinkPrefixExtension ) {
2242 if ( preg_match( $e2, $s, $m ) ) {
2249 if ( $first_prefix ) {
2250 $prefix = $first_prefix;
2251 $first_prefix = false;
2255 $might_be_img = false;
2257 if ( preg_match( $e1, $line, $m ) ) { # page with normal text or alt
2259 # If we get a ] at the beginning of $m[3] that means we have a link that's something like:
2260 # [[Image:Foo.jpg|[http://example.com desc]]] <- having three ] in a row fucks up,
2261 # the real problem is with the $e1 regex
2263 # Still some problems for cases where the ] is meant to be outside punctuation,
2264 # and no image is in sight. See T4095.
2266 && substr( $m[3], 0, 1 ) === ']'
2267 && strpos( $text, '[' ) !== false
2269 $text .= ']'; # so that replaceExternalLinks($text) works later
2270 $m[3] = substr( $m[3], 1 );
2272 # fix up urlencoded title texts
2273 if ( strpos( $m[1], '%' ) !== false ) {
2274 # Should anchors '#' also be rejected?
2275 $m[1] = str_replace( [ '<', '>' ], [ '<', '>' ], rawurldecode( $m[1] ) );
2278 } elseif ( preg_match( $e1_img, $line, $m ) ) {
2279 # Invalid, but might be an image with a link in its caption
2280 $might_be_img = true;
2282 if ( strpos( $m[1], '%' ) !== false ) {
2283 $m[1] = str_replace( [ '<', '>' ], [ '<', '>' ], rawurldecode( $m[1] ) );
2286 } else { # Invalid form; output directly
2287 $s .= $prefix . '[[' . $line;
2291 $origLink = ltrim( $m[1], ' ' );
2293 # Don't allow internal links to pages containing
2294 # PROTO: where PROTO is a valid URL protocol; these
2295 # should be external links.
2296 if ( preg_match( '/^(?i:' . $this->mUrlProtocols
. ')/', $origLink ) ) {
2297 $s .= $prefix . '[[' . $line;
2301 # Make subpage if necessary
2302 if ( $useSubpages ) {
2303 $link = $this->maybeDoSubpageLink( $origLink, $text );
2308 // \x7f isn't a default legal title char, so most likely strip
2309 // markers will force us into the "invalid form" path above. But,
2310 // just in case, let's assert that xmlish tags aren't valid in
2311 // the title position.
2312 $unstrip = $this->mStripState
->killMarkers( $link );
2313 $noMarkers = ( $unstrip === $link );
2315 $nt = $noMarkers ? Title
::newFromText( $link ) : null;
2316 if ( $nt === null ) {
2317 $s .= $prefix . '[[' . $line;
2321 $ns = $nt->getNamespace();
2322 $iw = $nt->getInterwiki();
2324 $noforce = ( substr( $origLink, 0, 1 ) !== ':' );
2326 if ( $might_be_img ) { # if this is actually an invalid link
2327 if ( $ns == NS_FILE
&& $noforce ) { # but might be an image
2330 # look at the next 'line' to see if we can close it there
2332 $next_line = $a->current();
2333 if ( $next_line === false ||
$next_line === null ) {
2336 $m = explode( ']]', $next_line, 3 );
2337 if ( count( $m ) == 3 ) {
2338 # the first ]] closes the inner link, the second the image
2340 $text .= "[[{$m[0]}]]{$m[1]}";
2343 } elseif ( count( $m ) == 2 ) {
2344 # if there's exactly one ]] that's fine, we'll keep looking
2345 $text .= "[[{$m[0]}]]{$m[1]}";
2347 # if $next_line is invalid too, we need look no further
2348 $text .= '[[' . $next_line;
2353 # we couldn't find the end of this imageLink, so output it raw
2354 # but don't ignore what might be perfectly normal links in the text we've examined
2355 $holders->merge( $this->replaceInternalLinks2( $text ) );
2356 $s .= "{$prefix}[[$link|$text";
2357 # note: no $trail, because without an end, there *is* no trail
2360 } else { # it's not an image, so output it raw
2361 $s .= "{$prefix}[[$link|$text";
2362 # note: no $trail, because without an end, there *is* no trail
2367 $wasblank = ( $text == '' );
2371 # Strip off leading ':'
2372 $text = substr( $text, 1 );
2375 # T6598 madness. Handle the quotes only if they come from the alternate part
2376 # [[Lista d''e paise d''o munno]] -> <a href="...">Lista d''e paise d''o munno</a>
2377 # [[Criticism of Harry Potter|Criticism of ''Harry Potter'']]
2378 # -> <a href="Criticism of Harry Potter">Criticism of <i>Harry Potter</i></a>
2379 $text = $this->doQuotes( $text );
2382 # Link not escaped by : , create the various objects
2383 if ( $noforce && !$nt->wasLocalInterwiki() ) {
2386 $iw && $this->mOptions
->getInterwikiMagic() && $nottalk && (
2387 Language
::fetchLanguageName( $iw, null, 'mw' ) ||
2388 in_array( $iw, $this->siteConfig
->get( 'ExtraInterlanguageLinkPrefixes' ) )
2391 # T26502: filter duplicates
2392 if ( !isset( $this->mLangLinkLanguages
[$iw] ) ) {
2393 $this->mLangLinkLanguages
[$iw] = true;
2394 $this->mOutput
->addLanguageLink( $nt->getFullText() );
2398 * Strip the whitespace interwiki links produce, see T10897
2400 $s = rtrim( $s . $prefix ) . $trail; # T175416
2404 if ( $ns == NS_FILE
) {
2405 if ( !wfIsBadImage( $nt->getDBkey(), $this->mTitle
) ) {
2407 # if no parameters were passed, $text
2408 # becomes something like "File:Foo.png",
2409 # which we don't want to pass on to the
2413 # recursively parse links inside the image caption
2414 # actually, this will parse them in any other parameters, too,
2415 # but it might be hard to fix that, and it doesn't matter ATM
2416 $text = $this->replaceExternalLinks( $text );
2417 $holders->merge( $this->replaceInternalLinks2( $text ) );
2419 # cloak any absolute URLs inside the image markup, so replaceExternalLinks() won't touch them
2420 $s .= $prefix . $this->armorLinks(
2421 $this->makeImage( $nt, $text, $holders ) ) . $trail;
2424 } elseif ( $ns == NS_CATEGORY
) {
2426 * Strip the whitespace Category links produce, see T2087
2428 $s = rtrim( $s . $prefix ) . $trail; # T2087, T87753
2431 $sortkey = $this->getDefaultSort();
2435 $sortkey = Sanitizer
::decodeCharReferences( $sortkey );
2436 $sortkey = str_replace( "\n", '', $sortkey );
2437 $sortkey = $this->getTargetLanguage()->convertCategoryKey( $sortkey );
2438 $this->mOutput
->addCategory( $nt->getDBkey(), $sortkey );
2444 # Self-link checking. For some languages, variants of the title are checked in
2445 # LinkHolderArray::doVariants() to allow batching the existence checks necessary
2446 # for linking to a different variant.
2447 if ( $ns != NS_SPECIAL
&& $nt->equals( $this->mTitle
) && !$nt->hasFragment() ) {
2448 $s .= $prefix . Linker
::makeSelfLinkObj( $nt, $text, '', $trail );
2452 # NS_MEDIA is a pseudo-namespace for linking directly to a file
2453 # @todo FIXME: Should do batch file existence checks, see comment below
2454 if ( $ns == NS_MEDIA
) {
2455 # Give extensions a chance to select the file revision for us
2458 Hooks
::run( 'BeforeParserFetchFileAndTitle',
2459 [ $this, $nt, &$options, &$descQuery ] );
2460 # Fetch and register the file (file title may be different via hooks)
2461 list( $file, $nt ) = $this->fetchFileAndTitle( $nt, $options );
2462 # Cloak with NOPARSE to avoid replacement in replaceExternalLinks
2463 $s .= $prefix . $this->armorLinks(
2464 Linker
::makeMediaLinkFile( $nt, $file, $text ) ) . $trail;
2468 # Some titles, such as valid special pages or files in foreign repos, should
2469 # be shown as bluelinks even though they're not included in the page table
2470 # @todo FIXME: isAlwaysKnown() can be expensive for file links; we should really do
2471 # batch file existence checks for NS_FILE and NS_MEDIA
2472 if ( $iw == '' && $nt->isAlwaysKnown() ) {
2473 $this->mOutput
->addLink( $nt );
2474 $s .= $this->makeKnownLinkHolder( $nt, $text, $trail, $prefix );
2476 # Links will be added to the output link list after checking
2477 $s .= $holders->makeHolder( $nt, $text, [], $trail, $prefix );
2484 * Render a forced-blue link inline; protect against double expansion of
2485 * URLs if we're in a mode that prepends full URL prefixes to internal links.
2486 * Since this little disaster has to split off the trail text to avoid
2487 * breaking URLs in the following text without breaking trails on the
2488 * wiki links, it's been made into a horrible function.
2491 * @param string $text
2492 * @param string $trail
2493 * @param string $prefix
2494 * @return string HTML-wikitext mix oh yuck
2496 protected function makeKnownLinkHolder( $nt, $text = '', $trail = '', $prefix = '' ) {
2497 list( $inside, $trail ) = Linker
::splitTrail( $trail );
2499 if ( $text == '' ) {
2500 $text = htmlspecialchars( $nt->getPrefixedText() );
2503 $link = $this->getLinkRenderer()->makeKnownLink(
2504 $nt, new HtmlArmor( "$prefix$text$inside" )
2507 return $this->armorLinks( $link ) . $trail;
2511 * Insert a NOPARSE hacky thing into any inline links in a chunk that's
2512 * going to go through further parsing steps before inline URL expansion.
2514 * Not needed quite as much as it used to be since free links are a bit
2515 * more sensible these days. But bracketed links are still an issue.
2517 * @param string $text More-or-less HTML
2518 * @return string Less-or-more HTML with NOPARSE bits
2520 public function armorLinks( $text ) {
2521 return preg_replace( '/\b((?i)' . $this->mUrlProtocols
. ')/',
2522 self
::MARKER_PREFIX
. "NOPARSE$1", $text );
2526 * Return true if subpage links should be expanded on this page.
2529 public function areSubpagesAllowed() {
2530 # Some namespaces don't allow subpages
2531 return MWNamespace
::hasSubpages( $this->mTitle
->getNamespace() );
2535 * Handle link to subpage if necessary
2537 * @param string $target The source of the link
2538 * @param string &$text The link text, modified as necessary
2539 * @return string The full name of the link
2542 public function maybeDoSubpageLink( $target, &$text ) {
2543 return Linker
::normalizeSubpageLink( $this->mTitle
, $target, $text );
2547 * Make lists from lines starting with ':', '*', '#', etc. (DBL)
2549 * @param string $text
2550 * @param bool $linestart Whether or not this is at the start of a line.
2552 * @return string The lists rendered as HTML
2554 public function doBlockLevels( $text, $linestart ) {
2555 return BlockLevelPass
::doBlockLevels( $text, $linestart );
2559 * Return value of a magic variable (like PAGENAME)
2563 * @param string $index Magic variable identifier as mapped in MagicWordFactory::$mVariableIDs
2564 * @param bool|PPFrame $frame
2566 * @throws MWException
2569 public function getVariableValue( $index, $frame = false ) {
2570 if ( is_null( $this->mTitle
) ) {
2571 // If no title set, bad things are going to happen
2572 // later. Title should always be set since this
2573 // should only be called in the middle of a parse
2574 // operation (but the unit-tests do funky stuff)
2575 throw new MWException( __METHOD__
. ' Should only be '
2576 . ' called while parsing (no title set)' );
2579 // Avoid PHP 7.1 warning from passing $this by reference
2583 * Some of these require message or data lookups and can be
2584 * expensive to check many times.
2586 if ( Hooks
::run( 'ParserGetVariableValueVarCache', [ &$parser, &$this->mVarCache
] ) ) {
2587 if ( isset( $this->mVarCache
[$index] ) ) {
2588 return $this->mVarCache
[$index];
2592 $ts = wfTimestamp( TS_UNIX
, $this->mOptions
->getTimestamp() );
2593 Hooks
::run( 'ParserGetVariableValueTs', [ &$parser, &$ts ] );
2595 $pageLang = $this->getFunctionLang();
2601 case 'currentmonth':
2602 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'm' ), true );
2604 case 'currentmonth1':
2605 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'n' ), true );
2607 case 'currentmonthname':
2608 $value = $pageLang->getMonthName( MWTimestamp
::getInstance( $ts )->format( 'n' ) );
2610 case 'currentmonthnamegen':
2611 $value = $pageLang->getMonthNameGen( MWTimestamp
::getInstance( $ts )->format( 'n' ) );
2613 case 'currentmonthabbrev':
2614 $value = $pageLang->getMonthAbbreviation( MWTimestamp
::getInstance( $ts )->format( 'n' ) );
2617 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'j' ), true );
2620 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'd' ), true );
2623 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'm' ), true );
2626 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'n' ), true );
2628 case 'localmonthname':
2629 $value = $pageLang->getMonthName( MWTimestamp
::getLocalInstance( $ts )->format( 'n' ) );
2631 case 'localmonthnamegen':
2632 $value = $pageLang->getMonthNameGen( MWTimestamp
::getLocalInstance( $ts )->format( 'n' ) );
2634 case 'localmonthabbrev':
2635 $value = $pageLang->getMonthAbbreviation( MWTimestamp
::getLocalInstance( $ts )->format( 'n' ) );
2638 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'j' ), true );
2641 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'd' ), true );
2644 $value = wfEscapeWikiText( $this->mTitle
->getText() );
2647 $value = wfEscapeWikiText( $this->mTitle
->getPartialURL() );
2649 case 'fullpagename':
2650 $value = wfEscapeWikiText( $this->mTitle
->getPrefixedText() );
2652 case 'fullpagenamee':
2653 $value = wfEscapeWikiText( $this->mTitle
->getPrefixedURL() );
2656 $value = wfEscapeWikiText( $this->mTitle
->getSubpageText() );
2658 case 'subpagenamee':
2659 $value = wfEscapeWikiText( $this->mTitle
->getSubpageUrlForm() );
2661 case 'rootpagename':
2662 $value = wfEscapeWikiText( $this->mTitle
->getRootText() );
2664 case 'rootpagenamee':
2665 $value = wfEscapeWikiText( wfUrlencode( str_replace(
2668 $this->mTitle
->getRootText()
2671 case 'basepagename':
2672 $value = wfEscapeWikiText( $this->mTitle
->getBaseText() );
2674 case 'basepagenamee':
2675 $value = wfEscapeWikiText( wfUrlencode( str_replace(
2678 $this->mTitle
->getBaseText()
2681 case 'talkpagename':
2682 if ( $this->mTitle
->canHaveTalkPage() ) {
2683 $talkPage = $this->mTitle
->getTalkPage();
2684 $value = wfEscapeWikiText( $talkPage->getPrefixedText() );
2689 case 'talkpagenamee':
2690 if ( $this->mTitle
->canHaveTalkPage() ) {
2691 $talkPage = $this->mTitle
->getTalkPage();
2692 $value = wfEscapeWikiText( $talkPage->getPrefixedURL() );
2697 case 'subjectpagename':
2698 $subjPage = $this->mTitle
->getSubjectPage();
2699 $value = wfEscapeWikiText( $subjPage->getPrefixedText() );
2701 case 'subjectpagenamee':
2702 $subjPage = $this->mTitle
->getSubjectPage();
2703 $value = wfEscapeWikiText( $subjPage->getPrefixedURL() );
2705 case 'pageid': // requested in T25427
2706 $pageid = $this->getTitle()->getArticleID();
2707 if ( $pageid == 0 ) {
2708 # 0 means the page doesn't exist in the database,
2709 # which means the user is previewing a new page.
2710 # The vary-revision flag must be set, because the magic word
2711 # will have a different value once the page is saved.
2712 $this->mOutput
->setFlag( 'vary-revision' );
2713 wfDebug( __METHOD__
. ": {{PAGEID}} used in a new page, setting vary-revision...\n" );
2715 $value = $pageid ?
: null;
2718 # Let the edit saving system know we should parse the page
2719 # *after* a revision ID has been assigned.
2720 $this->mOutput
->setFlag( 'vary-revision-id' );
2721 wfDebug( __METHOD__
. ": {{REVISIONID}} used, setting vary-revision-id...\n" );
2722 $value = $this->mRevisionId
;
2725 $rev = $this->getRevisionObject();
2727 $value = $rev->getId();
2732 $value = $this->mOptions
->getSpeculativeRevId();
2734 $this->mOutput
->setSpeculativeRevIdUsed( $value );
2739 $value = (int)$this->getRevisionTimestampSubstring( 6, 2, self
::MAX_TTS
, $index );
2741 case 'revisionday2':
2742 $value = $this->getRevisionTimestampSubstring( 6, 2, self
::MAX_TTS
, $index );
2744 case 'revisionmonth':
2745 $value = $this->getRevisionTimestampSubstring( 4, 2, self
::MAX_TTS
, $index );
2747 case 'revisionmonth1':
2748 $value = (int)$this->getRevisionTimestampSubstring( 4, 2, self
::MAX_TTS
, $index );
2750 case 'revisionyear':
2751 $value = $this->getRevisionTimestampSubstring( 0, 4, self
::MAX_TTS
, $index );
2753 case 'revisiontimestamp':
2754 # Let the edit saving system know we should parse the page
2755 # *after* a revision ID has been assigned. This is for null edits.
2756 $this->mOutput
->setFlag( 'vary-revision' );
2757 wfDebug( __METHOD__
. ": {{REVISIONTIMESTAMP}} used, setting vary-revision...\n" );
2758 $value = $this->getRevisionTimestamp();
2760 case 'revisionuser':
2761 # Let the edit saving system know we should parse the page
2762 # *after* a revision ID has been assigned for null edits.
2763 $this->mOutput
->setFlag( 'vary-user' );
2764 wfDebug( __METHOD__
. ": {{REVISIONUSER}} used, setting vary-user...\n" );
2765 $value = $this->getRevisionUser();
2767 case 'revisionsize':
2768 $value = $this->getRevisionSize();
2771 $value = str_replace( '_', ' ',
2772 $this->contLang
->getNsText( $this->mTitle
->getNamespace() ) );
2775 $value = wfUrlencode( $this->contLang
->getNsText( $this->mTitle
->getNamespace() ) );
2777 case 'namespacenumber':
2778 $value = $this->mTitle
->getNamespace();
2781 $value = $this->mTitle
->canHaveTalkPage()
2782 ?
str_replace( '_', ' ', $this->mTitle
->getTalkNsText() )
2786 $value = $this->mTitle
->canHaveTalkPage() ?
wfUrlencode( $this->mTitle
->getTalkNsText() ) : '';
2788 case 'subjectspace':
2789 $value = str_replace( '_', ' ', $this->mTitle
->getSubjectNsText() );
2791 case 'subjectspacee':
2792 $value = ( wfUrlencode( $this->mTitle
->getSubjectNsText() ) );
2794 case 'currentdayname':
2795 $value = $pageLang->getWeekdayName( (int)MWTimestamp
::getInstance( $ts )->format( 'w' ) +
1 );
2798 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'Y' ), true );
2801 $value = $pageLang->time( wfTimestamp( TS_MW
, $ts ), false, false );
2804 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'H' ), true );
2807 # @bug T6594 PHP5 has it zero padded, PHP4 does not, cast to
2808 # int to remove the padding
2809 $value = $pageLang->formatNum( (int)MWTimestamp
::getInstance( $ts )->format( 'W' ) );
2812 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'w' ) );
2814 case 'localdayname':
2815 $value = $pageLang->getWeekdayName(
2816 (int)MWTimestamp
::getLocalInstance( $ts )->format( 'w' ) +
1
2820 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'Y' ), true );
2823 $value = $pageLang->time(
2824 MWTimestamp
::getLocalInstance( $ts )->format( 'YmdHis' ),
2830 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'H' ), true );
2833 # @bug T6594 PHP5 has it zero padded, PHP4 does not, cast to
2834 # int to remove the padding
2835 $value = $pageLang->formatNum( (int)MWTimestamp
::getLocalInstance( $ts )->format( 'W' ) );
2838 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'w' ) );
2840 case 'numberofarticles':
2841 $value = $pageLang->formatNum( SiteStats
::articles() );
2843 case 'numberoffiles':
2844 $value = $pageLang->formatNum( SiteStats
::images() );
2846 case 'numberofusers':
2847 $value = $pageLang->formatNum( SiteStats
::users() );
2849 case 'numberofactiveusers':
2850 $value = $pageLang->formatNum( SiteStats
::activeUsers() );
2852 case 'numberofpages':
2853 $value = $pageLang->formatNum( SiteStats
::pages() );
2855 case 'numberofadmins':
2856 $value = $pageLang->formatNum( SiteStats
::numberingroup( 'sysop' ) );
2858 case 'numberofedits':
2859 $value = $pageLang->formatNum( SiteStats
::edits() );
2861 case 'currenttimestamp':
2862 $value = wfTimestamp( TS_MW
, $ts );
2864 case 'localtimestamp':
2865 $value = MWTimestamp
::getLocalInstance( $ts )->format( 'YmdHis' );
2867 case 'currentversion':
2868 $value = SpecialVersion
::getVersion();
2871 return $this->siteConfig
->get( 'ArticlePath' );
2873 return $this->siteConfig
->get( 'Sitename' );
2875 return $this->siteConfig
->get( 'Server' );
2877 return $this->siteConfig
->get( 'ServerName' );
2879 return $this->siteConfig
->get( 'ScriptPath' );
2881 return $this->siteConfig
->get( 'StylePath' );
2882 case 'directionmark':
2883 return $pageLang->getDirMark();
2884 case 'contentlanguage':
2885 return $this->siteConfig
->get( 'LanguageCode' );
2886 case 'pagelanguage':
2887 $value = $pageLang->getCode();
2889 case 'cascadingsources':
2890 $value = CoreParserFunctions
::cascadingsources( $this );
2895 'ParserGetVariableValueSwitch',
2896 [ &$parser, &$this->mVarCache
, &$index, &$ret, &$frame ]
2903 $this->mVarCache
[$index] = $value;
2912 * @param int $mtts Max time-till-save; sets vary-revision if result might change by then
2913 * @param string $variable Parser variable name
2916 private function getRevisionTimestampSubstring( $start, $len, $mtts, $variable ) {
2917 # Get the timezone-adjusted timestamp to be used for this revision
2918 $resNow = substr( $this->getRevisionTimestamp(), $start, $len );
2919 # Possibly set vary-revision if there is not yet an associated revision
2920 if ( !$this->getRevisionObject() ) {
2921 # Get the timezone-adjusted timestamp $mtts seconds in the future
2923 $this->contLang
->userAdjust( wfTimestamp( TS_MW
, time() +
$mtts ), '' ),
2928 if ( $resNow !== $resThen ) {
2929 # Let the edit saving system know we should parse the page
2930 # *after* a revision ID has been assigned. This is for null edits.
2931 $this->mOutput
->setFlag( 'vary-revision' );
2932 wfDebug( __METHOD__
. ": $variable used, setting vary-revision...\n" );
2940 * initialise the magic variables (like CURRENTMONTHNAME) and substitution modifiers
2944 public function initialiseVariables() {
2945 $variableIDs = $this->magicWordFactory
->getVariableIDs();
2946 $substIDs = $this->magicWordFactory
->getSubstIDs();
2948 $this->mVariables
= $this->magicWordFactory
->newArray( $variableIDs );
2949 $this->mSubstWords
= $this->magicWordFactory
->newArray( $substIDs );
2953 * Preprocess some wikitext and return the document tree.
2954 * This is the ghost of replace_variables().
2956 * @param string $text The text to parse
2957 * @param int $flags Bitwise combination of:
2958 * - self::PTD_FOR_INCLUSION: Handle "<noinclude>" and "<includeonly>" as if the text is being
2959 * included. Default is to assume a direct page view.
2961 * The generated DOM tree must depend only on the input text and the flags.
2962 * The DOM tree must be the same in OT_HTML and OT_WIKI mode, to avoid a regression of T6899.
2964 * Any flag added to the $flags parameter here, or any other parameter liable to cause a
2965 * change in the DOM tree for a given text, must be passed through the section identifier
2966 * in the section edit link and thus back to extractSections().
2968 * The output of this function is currently only cached in process memory, but a persistent
2969 * cache may be implemented at a later date which takes further advantage of these strict
2970 * dependency requirements.
2974 public function preprocessToDom( $text, $flags = 0 ) {
2975 $dom = $this->getPreprocessor()->preprocessToObj( $text, $flags );
2980 * Return a three-element array: leading whitespace, string contents, trailing whitespace
2986 public static function splitWhitespace( $s ) {
2987 $ltrimmed = ltrim( $s );
2988 $w1 = substr( $s, 0, strlen( $s ) - strlen( $ltrimmed ) );
2989 $trimmed = rtrim( $ltrimmed );
2990 $diff = strlen( $ltrimmed ) - strlen( $trimmed );
2992 $w2 = substr( $ltrimmed, -$diff );
2996 return [ $w1, $trimmed, $w2 ];
3000 * Replace magic variables, templates, and template arguments
3001 * with the appropriate text. Templates are substituted recursively,
3002 * taking care to avoid infinite loops.
3004 * Note that the substitution depends on value of $mOutputType:
3005 * self::OT_WIKI: only {{subst:}} templates
3006 * self::OT_PREPROCESS: templates but not extension tags
3007 * self::OT_HTML: all templates and extension tags
3009 * @param string $text The text to transform
3010 * @param bool|PPFrame $frame Object describing the arguments passed to the
3011 * template. Arguments may also be provided as an associative array, as
3012 * was the usual case before MW1.12. Providing arguments this way may be
3013 * useful for extensions wishing to perform variable replacement
3015 * @param bool $argsOnly Only do argument (triple-brace) expansion, not
3016 * double-brace expansion.
3019 public function replaceVariables( $text, $frame = false, $argsOnly = false ) {
3020 # Is there any text? Also, Prevent too big inclusions!
3021 $textSize = strlen( $text );
3022 if ( $textSize < 1 ||
$textSize > $this->mOptions
->getMaxIncludeSize() ) {
3026 if ( $frame === false ) {
3027 $frame = $this->getPreprocessor()->newFrame();
3028 } elseif ( !( $frame instanceof PPFrame
) ) {
3029 wfDebug( __METHOD__
. " called using plain parameters instead of "
3030 . "a PPFrame instance. Creating custom frame.\n" );
3031 $frame = $this->getPreprocessor()->newCustomFrame( $frame );
3034 $dom = $this->preprocessToDom( $text );
3035 $flags = $argsOnly ? PPFrame
::NO_TEMPLATES
: 0;
3036 $text = $frame->expand( $dom, $flags );
3042 * Clean up argument array - refactored in 1.9 so parserfunctions can use it, too.
3044 * @param array $args
3048 public static function createAssocArgs( $args ) {
3051 foreach ( $args as $arg ) {
3052 $eqpos = strpos( $arg, '=' );
3053 if ( $eqpos === false ) {
3054 $assocArgs[$index++
] = $arg;
3056 $name = trim( substr( $arg, 0, $eqpos ) );
3057 $value = trim( substr( $arg, $eqpos +
1 ) );
3058 if ( $value === false ) {
3061 if ( $name !== false ) {
3062 $assocArgs[$name] = $value;
3071 * Warn the user when a parser limitation is reached
3072 * Will warn at most once the user per limitation type
3074 * The results are shown during preview and run through the Parser (See EditPage.php)
3076 * @param string $limitationType Should be one of:
3077 * 'expensive-parserfunction' (corresponding messages:
3078 * 'expensive-parserfunction-warning',
3079 * 'expensive-parserfunction-category')
3080 * 'post-expand-template-argument' (corresponding messages:
3081 * 'post-expand-template-argument-warning',
3082 * 'post-expand-template-argument-category')
3083 * 'post-expand-template-inclusion' (corresponding messages:
3084 * 'post-expand-template-inclusion-warning',
3085 * 'post-expand-template-inclusion-category')
3086 * 'node-count-exceeded' (corresponding messages:
3087 * 'node-count-exceeded-warning',
3088 * 'node-count-exceeded-category')
3089 * 'expansion-depth-exceeded' (corresponding messages:
3090 * 'expansion-depth-exceeded-warning',
3091 * 'expansion-depth-exceeded-category')
3092 * @param string|int|null $current Current value
3093 * @param string|int|null $max Maximum allowed, when an explicit limit has been
3094 * exceeded, provide the values (optional)
3096 public function limitationWarn( $limitationType, $current = '', $max = '' ) {
3097 # does no harm if $current and $max are present but are unnecessary for the message
3098 # Not doing ->inLanguage( $this->mOptions->getUserLangObj() ), since this is shown
3099 # only during preview, and that would split the parser cache unnecessarily.
3100 $warning = wfMessage( "$limitationType-warning" )->numParams( $current, $max )
3102 $this->mOutput
->addWarning( $warning );
3103 $this->addTrackingCategory( "$limitationType-category" );
3107 * Return the text of a template, after recursively
3108 * replacing any variables or templates within the template.
3110 * @param array $piece The parts of the template
3111 * $piece['title']: the title, i.e. the part before the |
3112 * $piece['parts']: the parameter array
3113 * $piece['lineStart']: whether the brace was at the start of a line
3114 * @param PPFrame $frame The current frame, contains template arguments
3116 * @return string The text of the template
3118 public function braceSubstitution( $piece, $frame ) {
3121 // $text has been filled
3123 // wiki markup in $text should be escaped
3125 // $text is HTML, armour it against wikitext transformation
3127 // Force interwiki transclusion to be done in raw mode not rendered
3128 $forceRawInterwiki = false;
3129 // $text is a DOM node needing expansion in a child frame
3130 $isChildObj = false;
3131 // $text is a DOM node needing expansion in the current frame
3132 $isLocalObj = false;
3134 # Title object, where $text came from
3137 # $part1 is the bit before the first |, and must contain only title characters.
3138 # Various prefixes will be stripped from it later.
3139 $titleWithSpaces = $frame->expand( $piece['title'] );
3140 $part1 = trim( $titleWithSpaces );
3143 # Original title text preserved for various purposes
3144 $originalTitle = $part1;
3146 # $args is a list of argument nodes, starting from index 0, not including $part1
3147 # @todo FIXME: If piece['parts'] is null then the call to getLength()
3148 # below won't work b/c this $args isn't an object
3149 $args = ( $piece['parts'] == null ) ?
[] : $piece['parts'];
3151 $profileSection = null; // profile templates
3155 $substMatch = $this->mSubstWords
->matchStartAndRemove( $part1 );
3157 # Possibilities for substMatch: "subst", "safesubst" or FALSE
3158 # Decide whether to expand template or keep wikitext as-is.
3159 if ( $this->ot
['wiki'] ) {
3160 if ( $substMatch === false ) {
3161 $literal = true; # literal when in PST with no prefix
3163 $literal = false; # expand when in PST with subst: or safesubst:
3166 if ( $substMatch == 'subst' ) {
3167 $literal = true; # literal when not in PST with plain subst:
3169 $literal = false; # expand when not in PST with safesubst: or no prefix
3173 $text = $frame->virtualBracketedImplode( '{{', '|', '}}', $titleWithSpaces, $args );
3180 if ( !$found && $args->getLength() == 0 ) {
3181 $id = $this->mVariables
->matchStartToEnd( $part1 );
3182 if ( $id !== false ) {
3183 $text = $this->getVariableValue( $id, $frame );
3184 if ( $this->magicWordFactory
->getCacheTTL( $id ) > -1 ) {
3185 $this->mOutput
->updateCacheExpiry(
3186 $this->magicWordFactory
->getCacheTTL( $id ) );
3192 # MSG, MSGNW and RAW
3195 $mwMsgnw = $this->magicWordFactory
->get( 'msgnw' );
3196 if ( $mwMsgnw->matchStartAndRemove( $part1 ) ) {
3199 # Remove obsolete MSG:
3200 $mwMsg = $this->magicWordFactory
->get( 'msg' );
3201 $mwMsg->matchStartAndRemove( $part1 );
3205 $mwRaw = $this->magicWordFactory
->get( 'raw' );
3206 if ( $mwRaw->matchStartAndRemove( $part1 ) ) {
3207 $forceRawInterwiki = true;
3213 $colonPos = strpos( $part1, ':' );
3214 if ( $colonPos !== false ) {
3215 $func = substr( $part1, 0, $colonPos );
3216 $funcArgs = [ trim( substr( $part1, $colonPos +
1 ) ) ];
3217 $argsLength = $args->getLength();
3218 for ( $i = 0; $i < $argsLength; $i++
) {
3219 $funcArgs[] = $args->item( $i );
3222 $result = $this->callParserFunction( $frame, $func, $funcArgs );
3224 // Extract any forwarded flags
3225 if ( isset( $result['title'] ) ) {
3226 $title = $result['title'];
3228 if ( isset( $result['found'] ) ) {
3229 $found = $result['found'];
3231 if ( array_key_exists( 'text', $result ) ) {
3233 $text = $result['text'];
3235 if ( isset( $result['nowiki'] ) ) {
3236 $nowiki = $result['nowiki'];
3238 if ( isset( $result['isHTML'] ) ) {
3239 $isHTML = $result['isHTML'];
3241 if ( isset( $result['forceRawInterwiki'] ) ) {
3242 $forceRawInterwiki = $result['forceRawInterwiki'];
3244 if ( isset( $result['isChildObj'] ) ) {
3245 $isChildObj = $result['isChildObj'];
3247 if ( isset( $result['isLocalObj'] ) ) {
3248 $isLocalObj = $result['isLocalObj'];
3253 # Finish mangling title and then check for loops.
3254 # Set $title to a Title object and $titleText to the PDBK
3257 # Split the title into page and subpage
3259 $relative = $this->maybeDoSubpageLink( $part1, $subpage );
3260 if ( $part1 !== $relative ) {
3262 $ns = $this->mTitle
->getNamespace();
3264 $title = Title
::newFromText( $part1, $ns );
3266 $titleText = $title->getPrefixedText();
3267 # Check for language variants if the template is not found
3268 if ( $this->getTargetLanguage()->hasVariants() && $title->getArticleID() == 0 ) {
3269 $this->getTargetLanguage()->findVariantLink( $part1, $title, true );
3271 # Do recursion depth check
3272 $limit = $this->mOptions
->getMaxTemplateDepth();
3273 if ( $frame->depth
>= $limit ) {
3275 $text = '<span class="error">'
3276 . wfMessage( 'parser-template-recursion-depth-warning' )
3277 ->numParams( $limit )->inContentLanguage()->text()
3283 # Load from database
3284 if ( !$found && $title ) {
3285 $profileSection = $this->mProfiler
->scopedProfileIn( $title->getPrefixedDBkey() );
3286 if ( !$title->isExternal() ) {
3287 if ( $title->isSpecialPage()
3288 && $this->mOptions
->getAllowSpecialInclusion()
3289 && $this->ot
['html']
3291 $specialPage = $this->specialPageFactory
->getPage( $title->getDBkey() );
3292 // Pass the template arguments as URL parameters.
3293 // "uselang" will have no effect since the Language object
3294 // is forced to the one defined in ParserOptions.
3296 $argsLength = $args->getLength();
3297 for ( $i = 0; $i < $argsLength; $i++
) {
3298 $bits = $args->item( $i )->splitArg();
3299 if ( strval( $bits['index'] ) === '' ) {
3300 $name = trim( $frame->expand( $bits['name'], PPFrame
::STRIP_COMMENTS
) );
3301 $value = trim( $frame->expand( $bits['value'] ) );
3302 $pageArgs[$name] = $value;
3306 // Create a new context to execute the special page
3307 $context = new RequestContext
;
3308 $context->setTitle( $title );
3309 $context->setRequest( new FauxRequest( $pageArgs ) );
3310 if ( $specialPage && $specialPage->maxIncludeCacheTime() === 0 ) {
3311 $context->setUser( $this->getUser() );
3313 // If this page is cached, then we better not be per user.
3314 $context->setUser( User
::newFromName( '127.0.0.1', false ) );
3316 $context->setLanguage( $this->mOptions
->getUserLangObj() );
3317 $ret = $this->specialPageFactory
->capturePath( $title, $context, $this->getLinkRenderer() );
3319 $text = $context->getOutput()->getHTML();
3320 $this->mOutput
->addOutputPageMetadata( $context->getOutput() );
3323 if ( $specialPage && $specialPage->maxIncludeCacheTime() !== false ) {
3324 $this->mOutput
->updateRuntimeAdaptiveExpiry(
3325 $specialPage->maxIncludeCacheTime()
3329 } elseif ( MWNamespace
::isNonincludable( $title->getNamespace() ) ) {
3330 $found = false; # access denied
3331 wfDebug( __METHOD__
. ": template inclusion denied for " .
3332 $title->getPrefixedDBkey() . "\n" );
3334 list( $text, $title ) = $this->getTemplateDom( $title );
3335 if ( $text !== false ) {
3341 # If the title is valid but undisplayable, make a link to it
3342 if ( !$found && ( $this->ot
['html'] ||
$this->ot
['pre'] ) ) {
3343 $text = "[[:$titleText]]";
3346 } elseif ( $title->isTrans() ) {
3347 # Interwiki transclusion
3348 if ( $this->ot
['html'] && !$forceRawInterwiki ) {
3349 $text = $this->interwikiTransclude( $title, 'render' );
3352 $text = $this->interwikiTransclude( $title, 'raw' );
3353 # Preprocess it like a template
3354 $text = $this->preprocessToDom( $text, self
::PTD_FOR_INCLUSION
);
3360 # Do infinite loop check
3361 # This has to be done after redirect resolution to avoid infinite loops via redirects
3362 if ( !$frame->loopCheck( $title ) ) {
3364 $text = '<span class="error">'
3365 . wfMessage( 'parser-template-loop-warning', $titleText )->inContentLanguage()->text()
3367 $this->addTrackingCategory( 'template-loop-category' );
3368 $this->mOutput
->addWarning( wfMessage( 'template-loop-warning',
3369 wfEscapeWikiText( $titleText ) )->text() );
3370 wfDebug( __METHOD__
. ": template loop broken at '$titleText'\n" );
3374 # If we haven't found text to substitute by now, we're done
3375 # Recover the source wikitext and return it
3377 $text = $frame->virtualBracketedImplode( '{{', '|', '}}', $titleWithSpaces, $args );
3378 if ( $profileSection ) {
3379 $this->mProfiler
->scopedProfileOut( $profileSection );
3381 return [ 'object' => $text ];
3384 # Expand DOM-style return values in a child frame
3385 if ( $isChildObj ) {
3386 # Clean up argument array
3387 $newFrame = $frame->newChild( $args, $title );
3390 $text = $newFrame->expand( $text, PPFrame
::RECOVER_ORIG
);
3391 } elseif ( $titleText !== false && $newFrame->isEmpty() ) {
3392 # Expansion is eligible for the empty-frame cache
3393 $text = $newFrame->cachedExpand( $titleText, $text );
3395 # Uncached expansion
3396 $text = $newFrame->expand( $text );
3399 if ( $isLocalObj && $nowiki ) {
3400 $text = $frame->expand( $text, PPFrame
::RECOVER_ORIG
);
3401 $isLocalObj = false;
3404 if ( $profileSection ) {
3405 $this->mProfiler
->scopedProfileOut( $profileSection );
3408 # Replace raw HTML by a placeholder
3410 $text = $this->insertStripItem( $text );
3411 } elseif ( $nowiki && ( $this->ot
['html'] ||
$this->ot
['pre'] ) ) {
3412 # Escape nowiki-style return values
3413 $text = wfEscapeWikiText( $text );
3414 } elseif ( is_string( $text )
3415 && !$piece['lineStart']
3416 && preg_match( '/^(?:{\\||:|;|#|\*)/', $text )
3418 # T2529: if the template begins with a table or block-level
3419 # element, it should be treated as beginning a new line.
3420 # This behavior is somewhat controversial.
3421 $text = "\n" . $text;
3424 if ( is_string( $text ) && !$this->incrementIncludeSize( 'post-expand', strlen( $text ) ) ) {
3425 # Error, oversize inclusion
3426 if ( $titleText !== false ) {
3427 # Make a working, properly escaped link if possible (T25588)
3428 $text = "[[:$titleText]]";
3430 # This will probably not be a working link, but at least it may
3431 # provide some hint of where the problem is
3432 preg_replace( '/^:/', '', $originalTitle );
3433 $text = "[[:$originalTitle]]";
3435 $text .= $this->insertStripItem( '<!-- WARNING: template omitted, '
3436 . 'post-expand include size too large -->' );
3437 $this->limitationWarn( 'post-expand-template-inclusion' );
3440 if ( $isLocalObj ) {
3441 $ret = [ 'object' => $text ];
3443 $ret = [ 'text' => $text ];
3450 * Call a parser function and return an array with text and flags.
3452 * The returned array will always contain a boolean 'found', indicating
3453 * whether the parser function was found or not. It may also contain the
3455 * text: string|object, resulting wikitext or PP DOM object
3456 * isHTML: bool, $text is HTML, armour it against wikitext transformation
3457 * isChildObj: bool, $text is a DOM node needing expansion in a child frame
3458 * isLocalObj: bool, $text is a DOM node needing expansion in the current frame
3459 * nowiki: bool, wiki markup in $text should be escaped
3462 * @param PPFrame $frame The current frame, contains template arguments
3463 * @param string $function Function name
3464 * @param array $args Arguments to the function
3465 * @throws MWException
3468 public function callParserFunction( $frame, $function, array $args = [] ) {
3469 # Case sensitive functions
3470 if ( isset( $this->mFunctionSynonyms
[1][$function] ) ) {
3471 $function = $this->mFunctionSynonyms
[1][$function];
3473 # Case insensitive functions
3474 $function = $this->contLang
->lc( $function );
3475 if ( isset( $this->mFunctionSynonyms
[0][$function] ) ) {
3476 $function = $this->mFunctionSynonyms
[0][$function];
3478 return [ 'found' => false ];
3482 list( $callback, $flags ) = $this->mFunctionHooks
[$function];
3484 // Avoid PHP 7.1 warning from passing $this by reference
3487 $allArgs = [ &$parser ];
3488 if ( $flags & self
::SFH_OBJECT_ARGS
) {
3489 # Convert arguments to PPNodes and collect for appending to $allArgs
3491 foreach ( $args as $k => $v ) {
3492 if ( $v instanceof PPNode ||
$k === 0 ) {
3495 $funcArgs[] = $this->mPreprocessor
->newPartNodeArray( [ $k => $v ] )->item( 0 );
3499 # Add a frame parameter, and pass the arguments as an array
3500 $allArgs[] = $frame;
3501 $allArgs[] = $funcArgs;
3503 # Convert arguments to plain text and append to $allArgs
3504 foreach ( $args as $k => $v ) {
3505 if ( $v instanceof PPNode
) {
3506 $allArgs[] = trim( $frame->expand( $v ) );
3507 } elseif ( is_int( $k ) && $k >= 0 ) {
3508 $allArgs[] = trim( $v );
3510 $allArgs[] = trim( "$k=$v" );
3515 $result = $callback( ...$allArgs );
3517 # The interface for function hooks allows them to return a wikitext
3518 # string or an array containing the string and any flags. This mungs
3519 # things around to match what this method should return.
3520 if ( !is_array( $result ) ) {
3526 if ( isset( $result[0] ) && !isset( $result['text'] ) ) {
3527 $result['text'] = $result[0];
3529 unset( $result[0] );
3536 $preprocessFlags = 0;
3537 if ( isset( $result['noparse'] ) ) {
3538 $noparse = $result['noparse'];
3540 if ( isset( $result['preprocessFlags'] ) ) {
3541 $preprocessFlags = $result['preprocessFlags'];
3545 $result['text'] = $this->preprocessToDom( $result['text'], $preprocessFlags );
3546 $result['isChildObj'] = true;
3553 * Get the semi-parsed DOM representation of a template with a given title,
3554 * and its redirect destination title. Cached.
3556 * @param Title $title
3560 public function getTemplateDom( $title ) {
3561 $cacheTitle = $title;
3562 $titleText = $title->getPrefixedDBkey();
3564 if ( isset( $this->mTplRedirCache
[$titleText] ) ) {
3565 list( $ns, $dbk ) = $this->mTplRedirCache
[$titleText];
3566 $title = Title
::makeTitle( $ns, $dbk );
3567 $titleText = $title->getPrefixedDBkey();
3569 if ( isset( $this->mTplDomCache
[$titleText] ) ) {
3570 return [ $this->mTplDomCache
[$titleText], $title ];
3573 # Cache miss, go to the database
3574 list( $text, $title ) = $this->fetchTemplateAndTitle( $title );
3576 if ( $text === false ) {
3577 $this->mTplDomCache
[$titleText] = false;
3578 return [ false, $title ];
3581 $dom = $this->preprocessToDom( $text, self
::PTD_FOR_INCLUSION
);
3582 $this->mTplDomCache
[$titleText] = $dom;
3584 if ( !$title->equals( $cacheTitle ) ) {
3585 $this->mTplRedirCache
[$cacheTitle->getPrefixedDBkey()] =
3586 [ $title->getNamespace(), $title->getDBkey() ];
3589 return [ $dom, $title ];
3593 * Fetch the current revision of a given title. Note that the revision
3594 * (and even the title) may not exist in the database, so everything
3595 * contributing to the output of the parser should use this method
3596 * where possible, rather than getting the revisions themselves. This
3597 * method also caches its results, so using it benefits performance.
3600 * @param Title $title
3603 public function fetchCurrentRevisionOfTitle( $title ) {
3604 $cacheKey = $title->getPrefixedDBkey();
3605 if ( !$this->currentRevisionCache
) {
3606 $this->currentRevisionCache
= new MapCacheLRU( 100 );
3608 if ( !$this->currentRevisionCache
->has( $cacheKey ) ) {
3609 $this->currentRevisionCache
->set( $cacheKey,
3610 // Defaults to Parser::statelessFetchRevision()
3611 call_user_func( $this->mOptions
->getCurrentRevisionCallback(), $title, $this )
3614 return $this->currentRevisionCache
->get( $cacheKey );
3618 * Wrapper around Revision::newFromTitle to allow passing additional parameters
3619 * without passing them on to it.
3622 * @param Title $title
3623 * @param Parser|bool $parser
3624 * @return Revision|bool False if missing
3626 public static function statelessFetchRevision( Title
$title, $parser = false ) {
3627 $rev = Revision
::newKnownCurrent( wfGetDB( DB_REPLICA
), $title );
3633 * Fetch the unparsed text of a template and register a reference to it.
3634 * @param Title $title
3635 * @return array ( string or false, Title )
3637 public function fetchTemplateAndTitle( $title ) {
3638 // Defaults to Parser::statelessFetchTemplate()
3639 $templateCb = $this->mOptions
->getTemplateCallback();
3640 $stuff = call_user_func( $templateCb, $title, $this );
3641 // We use U+007F DELETE to distinguish strip markers from regular text.
3642 $text = $stuff['text'];
3643 if ( is_string( $stuff['text'] ) ) {
3644 $text = strtr( $text, "\x7f", "?" );
3646 $finalTitle = $stuff['finalTitle'] ??
$title;
3647 if ( isset( $stuff['deps'] ) ) {
3648 foreach ( $stuff['deps'] as $dep ) {
3649 $this->mOutput
->addTemplate( $dep['title'], $dep['page_id'], $dep['rev_id'] );
3650 if ( $dep['title']->equals( $this->getTitle() ) ) {
3651 // If we transclude ourselves, the final result
3652 // will change based on the new version of the page
3653 $this->mOutput
->setFlag( 'vary-revision' );
3657 return [ $text, $finalTitle ];
3661 * Fetch the unparsed text of a template and register a reference to it.
3662 * @param Title $title
3663 * @return string|bool
3665 public function fetchTemplate( $title ) {
3666 return $this->fetchTemplateAndTitle( $title )[0];
3670 * Static function to get a template
3671 * Can be overridden via ParserOptions::setTemplateCallback().
3673 * @param Title $title
3674 * @param bool|Parser $parser
3678 public static function statelessFetchTemplate( $title, $parser = false ) {
3679 $text = $skip = false;
3680 $finalTitle = $title;
3683 # Loop to fetch the article, with up to 1 redirect
3684 for ( $i = 0; $i < 2 && is_object( $title ); $i++
) {
3685 # Give extensions a chance to select the revision instead
3686 $id = false; # Assume current
3687 Hooks
::run( 'BeforeParserFetchTemplateAndtitle',
3688 [ $parser, $title, &$skip, &$id ] );
3694 'page_id' => $title->getArticleID(),
3701 $rev = Revision
::newFromId( $id );
3702 } elseif ( $parser ) {
3703 $rev = $parser->fetchCurrentRevisionOfTitle( $title );
3705 $rev = Revision
::newFromTitle( $title );
3707 $rev_id = $rev ?
$rev->getId() : 0;
3708 # If there is no current revision, there is no page
3709 if ( $id === false && !$rev ) {
3710 $linkCache = MediaWikiServices
::getInstance()->getLinkCache();
3711 $linkCache->addBadLinkObj( $title );
3716 'page_id' => $title->getArticleID(),
3717 'rev_id' => $rev_id ];
3718 if ( $rev && !$title->equals( $rev->getTitle() ) ) {
3719 # We fetched a rev from a different title; register it too...
3721 'title' => $rev->getTitle(),
3722 'page_id' => $rev->getPage(),
3723 'rev_id' => $rev_id ];
3727 $content = $rev->getContent();
3728 $text = $content ?
$content->getWikitextForTransclusion() : null;
3730 Hooks
::run( 'ParserFetchTemplate',
3731 [ $parser, $title, $rev, &$text, &$deps ] );
3733 if ( $text === false ||
$text === null ) {
3737 } elseif ( $title->getNamespace() == NS_MEDIAWIKI
) {
3738 $message = wfMessage( MediaWikiServices
::getInstance()->getContentLanguage()->
3739 lcfirst( $title->getText() ) )->inContentLanguage();
3740 if ( !$message->exists() ) {
3744 $content = $message->content();
3745 $text = $message->plain();
3753 $finalTitle = $title;
3754 $title = $content->getRedirectTarget();
3758 'finalTitle' => $finalTitle,
3763 * Fetch a file and its title and register a reference to it.
3764 * If 'broken' is a key in $options then the file will appear as a broken thumbnail.
3765 * @param Title $title
3766 * @param array $options Array of options to RepoGroup::findFile
3768 * @deprecated since 1.32, use fetchFileAndTitle instead
3770 public function fetchFile( $title, $options = [] ) {
3771 wfDeprecated( __METHOD__
, '1.32' );
3772 return $this->fetchFileAndTitle( $title, $options )[0];
3776 * Fetch a file and its title and register a reference to it.
3777 * If 'broken' is a key in $options then the file will appear as a broken thumbnail.
3778 * @param Title $title
3779 * @param array $options Array of options to RepoGroup::findFile
3780 * @return array ( File or false, Title of file )
3782 public function fetchFileAndTitle( $title, $options = [] ) {
3783 $file = $this->fetchFileNoRegister( $title, $options );
3785 $time = $file ?
$file->getTimestamp() : false;
3786 $sha1 = $file ?
$file->getSha1() : false;
3787 # Register the file as a dependency...
3788 $this->mOutput
->addImage( $title->getDBkey(), $time, $sha1 );
3789 if ( $file && !$title->equals( $file->getTitle() ) ) {
3790 # Update fetched file title
3791 $title = $file->getTitle();
3792 $this->mOutput
->addImage( $title->getDBkey(), $time, $sha1 );
3794 return [ $file, $title ];
3798 * Helper function for fetchFileAndTitle.
3800 * Also useful if you need to fetch a file but not use it yet,
3801 * for example to get the file's handler.
3803 * @param Title $title
3804 * @param array $options Array of options to RepoGroup::findFile
3807 protected function fetchFileNoRegister( $title, $options = [] ) {
3808 if ( isset( $options['broken'] ) ) {
3809 $file = false; // broken thumbnail forced by hook
3810 } elseif ( isset( $options['sha1'] ) ) { // get by (sha1,timestamp)
3811 $file = RepoGroup
::singleton()->findFileFromKey( $options['sha1'], $options );
3812 } else { // get by (name,timestamp)
3813 $file = wfFindFile( $title, $options );
3819 * Transclude an interwiki link.
3821 * @param Title $title
3822 * @param string $action Usually one of (raw, render)
3826 public function interwikiTransclude( $title, $action ) {
3827 if ( !$this->siteConfig
->get( 'EnableScaryTranscluding' ) ) {
3828 return wfMessage( 'scarytranscludedisabled' )->inContentLanguage()->text();
3831 $url = $title->getFullURL( [ 'action' => $action ] );
3832 if ( strlen( $url ) > 1024 ) {
3833 return wfMessage( 'scarytranscludetoolong' )->inContentLanguage()->text();
3836 $wikiId = $title->getTransWikiID(); // remote wiki ID or false
3838 $fname = __METHOD__
;
3839 $cache = MediaWikiServices
::getInstance()->getMainWANObjectCache();
3841 $data = $cache->getWithSetCallback(
3842 $cache->makeGlobalKey(
3843 'interwiki-transclude',
3844 ( $wikiId !== false ) ?
$wikiId : 'external',
3847 $this->siteConfig
->get( 'TranscludeCacheExpiry' ),
3848 function ( $oldValue, &$ttl ) use ( $url, $fname, $cache ) {
3849 $req = MWHttpRequest
::factory( $url, [], $fname );
3851 $status = $req->execute(); // Status object
3852 if ( !$status->isOK() ) {
3853 $ttl = $cache::TTL_UNCACHEABLE
;
3854 } elseif ( $req->getResponseHeader( 'X-Database-Lagged' ) !== null ) {
3855 $ttl = min( $cache::TTL_LAGGED
, $ttl );
3859 'text' => $status->isOK() ?
$req->getContent() : null,
3860 'code' => $req->getStatus()
3864 'checkKeys' => ( $wikiId !== false )
3865 ?
[ $cache->makeGlobalKey( 'interwiki-page', $wikiId, $title->getDBkey() ) ]
3867 'pcGroup' => 'interwiki-transclude:5',
3868 'pcTTL' => $cache::TTL_PROC_LONG
3872 if ( is_string( $data['text'] ) ) {
3873 $text = $data['text'];
3874 } elseif ( $data['code'] != 200 ) {
3875 // Though we failed to fetch the content, this status is useless.
3876 $text = wfMessage( 'scarytranscludefailed-httpstatus' )
3877 ->params( $url, $data['code'] )->inContentLanguage()->text();
3879 $text = wfMessage( 'scarytranscludefailed', $url )->inContentLanguage()->text();
3886 * Triple brace replacement -- used for template arguments
3889 * @param array $piece
3890 * @param PPFrame $frame
3894 public function argSubstitution( $piece, $frame ) {
3896 $parts = $piece['parts'];
3897 $nameWithSpaces = $frame->expand( $piece['title'] );
3898 $argName = trim( $nameWithSpaces );
3900 $text = $frame->getArgument( $argName );
3901 if ( $text === false && $parts->getLength() > 0
3902 && ( $this->ot
['html']
3904 ||
( $this->ot
['wiki'] && $frame->isTemplate() )
3907 # No match in frame, use the supplied default
3908 $object = $parts->item( 0 )->getChildren();
3910 if ( !$this->incrementIncludeSize( 'arg', strlen( $text ) ) ) {
3911 $error = '<!-- WARNING: argument omitted, expansion size too large -->';
3912 $this->limitationWarn( 'post-expand-template-argument' );
3915 if ( $text === false && $object === false ) {
3917 $object = $frame->virtualBracketedImplode( '{{{', '|', '}}}', $nameWithSpaces, $parts );
3919 if ( $error !== false ) {
3922 if ( $object !== false ) {
3923 $ret = [ 'object' => $object ];
3925 $ret = [ 'text' => $text ];
3932 * Return the text to be used for a given extension tag.
3933 * This is the ghost of strip().
3935 * @param array $params Associative array of parameters:
3936 * name PPNode for the tag name
3937 * attr PPNode for unparsed text where tag attributes are thought to be
3938 * attributes Optional associative array of parsed attributes
3939 * inner Contents of extension element
3940 * noClose Original text did not have a close tag
3941 * @param PPFrame $frame
3943 * @throws MWException
3946 public function extensionSubstitution( $params, $frame ) {
3947 static $errorStr = '<span class="error">';
3948 static $errorLen = 20;
3950 $name = $frame->expand( $params['name'] );
3951 if ( substr( $name, 0, $errorLen ) === $errorStr ) {
3952 // Probably expansion depth or node count exceeded. Just punt the
3957 $attrText = !isset( $params['attr'] ) ?
null : $frame->expand( $params['attr'] );
3958 if ( substr( $attrText, 0, $errorLen ) === $errorStr ) {
3963 // We can't safely check if the expansion for $content resulted in an
3964 // error, because the content could happen to be the error string
3966 $content = !isset( $params['inner'] ) ?
null : $frame->expand( $params['inner'] );
3968 $marker = self
::MARKER_PREFIX
. "-$name-"
3969 . sprintf( '%08X', $this->mMarkerIndex++
) . self
::MARKER_SUFFIX
;
3971 $isFunctionTag = isset( $this->mFunctionTagHooks
[strtolower( $name )] ) &&
3972 ( $this->ot
['html'] ||
$this->ot
['pre'] );
3973 if ( $isFunctionTag ) {
3974 $markerType = 'none';
3976 $markerType = 'general';
3978 if ( $this->ot
['html'] ||
$isFunctionTag ) {
3979 $name = strtolower( $name );
3980 $attributes = Sanitizer
::decodeTagAttributes( $attrText );
3981 if ( isset( $params['attributes'] ) ) {
3982 $attributes +
= $params['attributes'];
3985 if ( isset( $this->mTagHooks
[$name] ) ) {
3986 $output = call_user_func_array( $this->mTagHooks
[$name],
3987 [ $content, $attributes, $this, $frame ] );
3988 } elseif ( isset( $this->mFunctionTagHooks
[$name] ) ) {
3989 list( $callback, ) = $this->mFunctionTagHooks
[$name];
3991 // Avoid PHP 7.1 warning from passing $this by reference
3993 $output = call_user_func_array( $callback, [ &$parser, $frame, $content, $attributes ] );
3995 $output = '<span class="error">Invalid tag extension name: ' .
3996 htmlspecialchars( $name ) . '</span>';
3999 if ( is_array( $output ) ) {
4002 $output = $flags[0];
4003 if ( isset( $flags['markerType'] ) ) {
4004 $markerType = $flags['markerType'];
4008 if ( is_null( $attrText ) ) {
4011 if ( isset( $params['attributes'] ) ) {
4012 foreach ( $params['attributes'] as $attrName => $attrValue ) {
4013 $attrText .= ' ' . htmlspecialchars( $attrName ) . '="' .
4014 htmlspecialchars( $attrValue ) . '"';
4017 if ( $content === null ) {
4018 $output = "<$name$attrText/>";
4020 $close = is_null( $params['close'] ) ?
'' : $frame->expand( $params['close'] );
4021 if ( substr( $close, 0, $errorLen ) === $errorStr ) {
4025 $output = "<$name$attrText>$content$close";
4029 if ( $markerType === 'none' ) {
4031 } elseif ( $markerType === 'nowiki' ) {
4032 $this->mStripState
->addNoWiki( $marker, $output );
4033 } elseif ( $markerType === 'general' ) {
4034 $this->mStripState
->addGeneral( $marker, $output );
4036 throw new MWException( __METHOD__
. ': invalid marker type' );
4042 * Increment an include size counter
4044 * @param string $type The type of expansion
4045 * @param int $size The size of the text
4046 * @return bool False if this inclusion would take it over the maximum, true otherwise
4048 public function incrementIncludeSize( $type, $size ) {
4049 if ( $this->mIncludeSizes
[$type] +
$size > $this->mOptions
->getMaxIncludeSize() ) {
4052 $this->mIncludeSizes
[$type] +
= $size;
4058 * Increment the expensive function count
4060 * @return bool False if the limit has been exceeded
4062 public function incrementExpensiveFunctionCount() {
4063 $this->mExpensiveFunctionCount++
;
4064 return $this->mExpensiveFunctionCount
<= $this->mOptions
->getExpensiveParserFunctionLimit();
4068 * Strip double-underscore items like __NOGALLERY__ and __NOTOC__
4069 * Fills $this->mDoubleUnderscores, returns the modified text
4071 * @param string $text
4075 public function doDoubleUnderscore( $text ) {
4076 # The position of __TOC__ needs to be recorded
4077 $mw = $this->magicWordFactory
->get( 'toc' );
4078 if ( $mw->match( $text ) ) {
4079 $this->mShowToc
= true;
4080 $this->mForceTocPosition
= true;
4082 # Set a placeholder. At the end we'll fill it in with the TOC.
4083 $text = $mw->replace( '<!--MWTOC\'"-->', $text, 1 );
4085 # Only keep the first one.
4086 $text = $mw->replace( '', $text );
4089 # Now match and remove the rest of them
4090 $mwa = $this->magicWordFactory
->getDoubleUnderscoreArray();
4091 $this->mDoubleUnderscores
= $mwa->matchAndRemove( $text );
4093 if ( isset( $this->mDoubleUnderscores
['nogallery'] ) ) {
4094 $this->mOutput
->mNoGallery
= true;
4096 if ( isset( $this->mDoubleUnderscores
['notoc'] ) && !$this->mForceTocPosition
) {
4097 $this->mShowToc
= false;
4099 if ( isset( $this->mDoubleUnderscores
['hiddencat'] )
4100 && $this->mTitle
->getNamespace() == NS_CATEGORY
4102 $this->addTrackingCategory( 'hidden-category-category' );
4104 # (T10068) Allow control over whether robots index a page.
4105 # __INDEX__ always overrides __NOINDEX__, see T16899
4106 if ( isset( $this->mDoubleUnderscores
['noindex'] ) && $this->mTitle
->canUseNoindex() ) {
4107 $this->mOutput
->setIndexPolicy( 'noindex' );
4108 $this->addTrackingCategory( 'noindex-category' );
4110 if ( isset( $this->mDoubleUnderscores
['index'] ) && $this->mTitle
->canUseNoindex() ) {
4111 $this->mOutput
->setIndexPolicy( 'index' );
4112 $this->addTrackingCategory( 'index-category' );
4115 # Cache all double underscores in the database
4116 foreach ( $this->mDoubleUnderscores
as $key => $val ) {
4117 $this->mOutput
->setProperty( $key, '' );
4124 * @see ParserOutput::addTrackingCategory()
4125 * @param string $msg Message key
4126 * @return bool Whether the addition was successful
4128 public function addTrackingCategory( $msg ) {
4129 return $this->mOutput
->addTrackingCategory( $msg, $this->mTitle
);
4133 * This function accomplishes several tasks:
4134 * 1) Auto-number headings if that option is enabled
4135 * 2) Add an [edit] link to sections for users who have enabled the option and can edit the page
4136 * 3) Add a Table of contents on the top for users who have enabled the option
4137 * 4) Auto-anchor headings
4139 * It loops through all headlines, collects the necessary data, then splits up the
4140 * string and re-inserts the newly formatted headlines.
4142 * @param string $text
4143 * @param string $origText Original, untouched wikitext
4144 * @param bool $isMain
4145 * @return mixed|string
4148 public function formatHeadings( $text, $origText, $isMain = true ) {
4149 # Inhibit editsection links if requested in the page
4150 if ( isset( $this->mDoubleUnderscores
['noeditsection'] ) ) {
4151 $maybeShowEditLink = false;
4153 $maybeShowEditLink = true; /* Actual presence will depend on post-cache transforms */
4156 # Get all headlines for numbering them and adding funky stuff like [edit]
4157 # links - this is for later, but we need the number of headlines right now
4158 # NOTE: white space in headings have been trimmed in doHeadings. They shouldn't
4159 # be trimmed here since whitespace in HTML headings is significant.
4161 $numMatches = preg_match_all(
4162 '/<H(?P<level>[1-6])(?P<attrib>.*?>)(?P<header>[\s\S]*?)<\/H[1-6] *>/i',
4167 # if there are fewer than 4 headlines in the article, do not show TOC
4168 # unless it's been explicitly enabled.
4169 $enoughToc = $this->mShowToc
&&
4170 ( ( $numMatches >= 4 ) ||
$this->mForceTocPosition
);
4172 # Allow user to stipulate that a page should have a "new section"
4173 # link added via __NEWSECTIONLINK__
4174 if ( isset( $this->mDoubleUnderscores
['newsectionlink'] ) ) {
4175 $this->mOutput
->setNewSection( true );
4178 # Allow user to remove the "new section"
4179 # link via __NONEWSECTIONLINK__
4180 if ( isset( $this->mDoubleUnderscores
['nonewsectionlink'] ) ) {
4181 $this->mOutput
->hideNewSection( true );
4184 # if the string __FORCETOC__ (not case-sensitive) occurs in the HTML,
4185 # override above conditions and always show TOC above first header
4186 if ( isset( $this->mDoubleUnderscores
['forcetoc'] ) ) {
4187 $this->mShowToc
= true;
4195 # Ugh .. the TOC should have neat indentation levels which can be
4196 # passed to the skin functions. These are determined here
4200 $sublevelCount = [];
4206 $markerRegex = self
::MARKER_PREFIX
. "-h-(\d+)-" . self
::MARKER_SUFFIX
;
4207 $baseTitleText = $this->mTitle
->getPrefixedDBkey();
4208 $oldType = $this->mOutputType
;
4209 $this->setOutputType( self
::OT_WIKI
);
4210 $frame = $this->getPreprocessor()->newFrame();
4211 $root = $this->preprocessToDom( $origText );
4212 $node = $root->getFirstChild();
4217 $headlines = $numMatches !== false ?
$matches[3] : [];
4219 $maxTocLevel = $this->siteConfig
->get( 'MaxTocLevel' );
4220 foreach ( $headlines as $headline ) {
4221 $isTemplate = false;
4223 $sectionIndex = false;
4225 $markerMatches = [];
4226 if ( preg_match( "/^$markerRegex/", $headline, $markerMatches ) ) {
4227 $serial = $markerMatches[1];
4228 list( $titleText, $sectionIndex ) = $this->mHeadings
[$serial];
4229 $isTemplate = ( $titleText != $baseTitleText );
4230 $headline = preg_replace( "/^$markerRegex\\s*/", "", $headline );
4234 $prevlevel = $level;
4236 $level = $matches[1][$headlineCount];
4238 if ( $level > $prevlevel ) {
4239 # Increase TOC level
4241 $sublevelCount[$toclevel] = 0;
4242 if ( $toclevel < $maxTocLevel ) {
4243 $prevtoclevel = $toclevel;
4244 $toc .= Linker
::tocIndent();
4247 } elseif ( $level < $prevlevel && $toclevel > 1 ) {
4248 # Decrease TOC level, find level to jump to
4250 for ( $i = $toclevel; $i > 0; $i-- ) {
4251 if ( $levelCount[$i] == $level ) {
4252 # Found last matching level
4255 } elseif ( $levelCount[$i] < $level ) {
4256 # Found first matching level below current level
4264 if ( $toclevel < $maxTocLevel ) {
4265 if ( $prevtoclevel < $maxTocLevel ) {
4266 # Unindent only if the previous toc level was shown :p
4267 $toc .= Linker
::tocUnindent( $prevtoclevel - $toclevel );
4268 $prevtoclevel = $toclevel;
4270 $toc .= Linker
::tocLineEnd();
4274 # No change in level, end TOC line
4275 if ( $toclevel < $maxTocLevel ) {
4276 $toc .= Linker
::tocLineEnd();
4280 $levelCount[$toclevel] = $level;
4282 # count number of headlines for each level
4283 $sublevelCount[$toclevel]++
;
4285 for ( $i = 1; $i <= $toclevel; $i++
) {
4286 if ( !empty( $sublevelCount[$i] ) ) {
4290 $numbering .= $this->getTargetLanguage()->formatNum( $sublevelCount[$i] );
4295 # The safe header is a version of the header text safe to use for links
4297 # Remove link placeholders by the link text.
4298 # <!--LINK number-->
4300 # link text with suffix
4301 # Do this before unstrip since link text can contain strip markers
4302 $safeHeadline = $this->replaceLinkHoldersText( $headline );
4304 # Avoid insertion of weird stuff like <math> by expanding the relevant sections
4305 $safeHeadline = $this->mStripState
->unstripBoth( $safeHeadline );
4307 # Remove any <style> or <script> tags (T198618)
4308 $safeHeadline = preg_replace(
4309 '#<(style|script)(?: [^>]*[^>/])?>.*?</\1>#is',
4314 # Strip out HTML (first regex removes any tag not allowed)
4316 # * <sup> and <sub> (T10393)
4320 # * <span dir="rtl"> and <span dir="ltr"> (T37167)
4321 # * <s> and <strike> (T35715)
4322 # We strip any parameter from accepted tags (second regex), except dir="rtl|ltr" from <span>,
4323 # to allow setting directionality in toc items.
4324 $tocline = preg_replace(
4326 '#<(?!/?(span|sup|sub|bdi|i|b|s|strike)(?: [^>]*)?>).*?>#',
4327 '#<(/?(?:span(?: dir="(?:rtl|ltr)")?|sup|sub|bdi|i|b|s|strike))(?: .*?)?>#'
4333 # Strip '<span></span>', which is the result from the above if
4334 # <span id="foo"></span> is used to produce an additional anchor
4336 $tocline = str_replace( '<span></span>', '', $tocline );
4338 $tocline = trim( $tocline );
4340 # For the anchor, strip out HTML-y stuff period
4341 $safeHeadline = preg_replace( '/<.*?>/', '', $safeHeadline );
4342 $safeHeadline = Sanitizer
::normalizeSectionNameWhitespace( $safeHeadline );
4344 # Save headline for section edit hint before it's escaped
4345 $headlineHint = $safeHeadline;
4347 # Decode HTML entities
4348 $safeHeadline = Sanitizer
::decodeCharReferences( $safeHeadline );
4350 $safeHeadline = self
::normalizeSectionName( $safeHeadline );
4352 $fallbackHeadline = Sanitizer
::escapeIdForAttribute( $safeHeadline, Sanitizer
::ID_FALLBACK
);
4353 $linkAnchor = Sanitizer
::escapeIdForLink( $safeHeadline );
4354 $safeHeadline = Sanitizer
::escapeIdForAttribute( $safeHeadline, Sanitizer
::ID_PRIMARY
);
4355 if ( $fallbackHeadline === $safeHeadline ) {
4356 # No reason to have both (in fact, we can't)
4357 $fallbackHeadline = false;
4360 # HTML IDs must be case-insensitively unique for IE compatibility (T12721).
4361 # @todo FIXME: We may be changing them depending on the current locale.
4362 $arrayKey = strtolower( $safeHeadline );
4363 if ( $fallbackHeadline === false ) {
4364 $fallbackArrayKey = false;
4366 $fallbackArrayKey = strtolower( $fallbackHeadline );
4369 # Create the anchor for linking from the TOC to the section
4370 $anchor = $safeHeadline;
4371 $fallbackAnchor = $fallbackHeadline;
4372 if ( isset( $refers[$arrayKey] ) ) {
4373 // phpcs:ignore Generic.Formatting.DisallowMultipleStatements
4374 for ( $i = 2; isset( $refers["${arrayKey}_$i"] ); ++
$i );
4376 $linkAnchor .= "_$i";
4377 $refers["${arrayKey}_$i"] = true;
4379 $refers[$arrayKey] = true;
4381 if ( $fallbackHeadline !== false && isset( $refers[$fallbackArrayKey] ) ) {
4382 // phpcs:ignore Generic.Formatting.DisallowMultipleStatements
4383 for ( $i = 2; isset( $refers["${fallbackArrayKey}_$i"] ); ++
$i );
4384 $fallbackAnchor .= "_$i";
4385 $refers["${fallbackArrayKey}_$i"] = true;
4387 $refers[$fallbackArrayKey] = true;
4390 # Don't number the heading if it is the only one (looks silly)
4391 if ( count( $matches[3] ) > 1 && $this->mOptions
->getNumberHeadings() ) {
4392 # the two are different if the line contains a link
4393 $headline = Html
::element(
4395 [ 'class' => 'mw-headline-number' ],
4397 ) . ' ' . $headline;
4400 if ( $enoughToc && ( !isset( $maxTocLevel ) ||
$toclevel < $maxTocLevel ) ) {
4401 $toc .= Linker
::tocLine( $linkAnchor, $tocline,
4402 $numbering, $toclevel, ( $isTemplate ?
false : $sectionIndex ) );
4405 # Add the section to the section tree
4406 # Find the DOM node for this header
4407 $noOffset = ( $isTemplate ||
$sectionIndex === false );
4408 while ( $node && !$noOffset ) {
4409 if ( $node->getName() === 'h' ) {
4410 $bits = $node->splitHeading();
4411 if ( $bits['i'] == $sectionIndex ) {
4415 $byteOffset +
= mb_strlen( $this->mStripState
->unstripBoth(
4416 $frame->expand( $node, PPFrame
::RECOVER_ORIG
) ) );
4417 $node = $node->getNextSibling();
4420 'toclevel' => $toclevel,
4423 'number' => $numbering,
4424 'index' => ( $isTemplate ?
'T-' : '' ) . $sectionIndex,
4425 'fromtitle' => $titleText,
4426 'byteoffset' => ( $noOffset ?
null : $byteOffset ),
4427 'anchor' => $anchor,
4430 # give headline the correct <h#> tag
4431 if ( $maybeShowEditLink && $sectionIndex !== false ) {
4432 // Output edit section links as markers with styles that can be customized by skins
4433 if ( $isTemplate ) {
4434 # Put a T flag in the section identifier, to indicate to extractSections()
4435 # that sections inside <includeonly> should be counted.
4436 $editsectionPage = $titleText;
4437 $editsectionSection = "T-$sectionIndex";
4438 $editsectionContent = null;
4440 $editsectionPage = $this->mTitle
->getPrefixedText();
4441 $editsectionSection = $sectionIndex;
4442 $editsectionContent = $headlineHint;
4444 // We use a bit of pesudo-xml for editsection markers. The
4445 // language converter is run later on. Using a UNIQ style marker
4446 // leads to the converter screwing up the tokens when it
4447 // converts stuff. And trying to insert strip tags fails too. At
4448 // this point all real inputted tags have already been escaped,
4449 // so we don't have to worry about a user trying to input one of
4450 // these markers directly. We use a page and section attribute
4451 // to stop the language converter from converting these
4452 // important bits of data, but put the headline hint inside a
4453 // content block because the language converter is supposed to
4454 // be able to convert that piece of data.
4455 // Gets replaced with html in ParserOutput::getText
4456 $editlink = '<mw:editsection page="' . htmlspecialchars( $editsectionPage );
4457 $editlink .= '" section="' . htmlspecialchars( $editsectionSection ) . '"';
4458 if ( $editsectionContent !== null ) {
4459 $editlink .= '>' . $editsectionContent . '</mw:editsection>';
4466 $head[$headlineCount] = Linker
::makeHeadline( $level,
4467 $matches['attrib'][$headlineCount], $anchor, $headline,
4468 $editlink, $fallbackAnchor );
4473 $this->setOutputType( $oldType );
4475 # Never ever show TOC if no headers
4476 if ( $numVisible < 1 ) {
4481 if ( $prevtoclevel > 0 && $prevtoclevel < $maxTocLevel ) {
4482 $toc .= Linker
::tocUnindent( $prevtoclevel - 1 );
4484 $toc = Linker
::tocList( $toc, $this->mOptions
->getUserLangObj() );
4485 $this->mOutput
->setTOCHTML( $toc );
4486 $toc = self
::TOC_START
. $toc . self
::TOC_END
;
4490 $this->mOutput
->setSections( $tocraw );
4493 # split up and insert constructed headlines
4494 $blocks = preg_split( '/<H[1-6].*?>[\s\S]*?<\/H[1-6]>/i', $text );
4497 // build an array of document sections
4499 foreach ( $blocks as $block ) {
4500 // $head is zero-based, sections aren't.
4501 if ( empty( $head[$i - 1] ) ) {
4502 $sections[$i] = $block;
4504 $sections[$i] = $head[$i - 1] . $block;
4508 * Send a hook, one per section.
4509 * The idea here is to be able to make section-level DIVs, but to do so in a
4510 * lower-impact, more correct way than r50769
4513 * $section : the section number
4514 * &$sectionContent : ref to the content of the section
4515 * $maybeShowEditLinks : boolean describing whether this section has an edit link
4517 Hooks
::run( 'ParserSectionCreate', [ $this, $i, &$sections[$i], $maybeShowEditLink ] );
4522 if ( $enoughToc && $isMain && !$this->mForceTocPosition
) {
4523 // append the TOC at the beginning
4524 // Top anchor now in skin
4525 $sections[0] .= $toc . "\n";
4528 $full .= implode( '', $sections );
4530 if ( $this->mForceTocPosition
) {
4531 return str_replace( '<!--MWTOC\'"-->', $toc, $full );
4538 * Transform wiki markup when saving a page by doing "\r\n" -> "\n"
4539 * conversion, substituting signatures, {{subst:}} templates, etc.
4541 * @param string $text The text to transform
4542 * @param Title $title The Title object for the current article
4543 * @param User $user The User object describing the current user
4544 * @param ParserOptions $options Parsing options
4545 * @param bool $clearState Whether to clear the parser state first
4546 * @return string The altered wiki markup
4548 public function preSaveTransform( $text, Title
$title, User
$user,
4549 ParserOptions
$options, $clearState = true
4551 if ( $clearState ) {
4552 $magicScopeVariable = $this->lock();
4554 $this->startParse( $title, $options, self
::OT_WIKI
, $clearState );
4555 $this->setUser( $user );
4557 // Strip U+0000 NULL (T159174)
4558 $text = str_replace( "\000", '', $text );
4560 // We still normalize line endings for backwards-compatibility
4561 // with other code that just calls PST, but this should already
4562 // be handled in TextContent subclasses
4563 $text = TextContent
::normalizeLineEndings( $text );
4565 if ( $options->getPreSaveTransform() ) {
4566 $text = $this->pstPass2( $text, $user );
4568 $text = $this->mStripState
->unstripBoth( $text );
4570 $this->setUser( null ); # Reset
4576 * Pre-save transform helper function
4578 * @param string $text
4583 private function pstPass2( $text, $user ) {
4584 # Note: This is the timestamp saved as hardcoded wikitext to the database, we use
4585 # $this->contLang here in order to give everyone the same signature and use the default one
4586 # rather than the one selected in each user's preferences. (see also T14815)
4587 $ts = $this->mOptions
->getTimestamp();
4588 $timestamp = MWTimestamp
::getLocalInstance( $ts );
4589 $ts = $timestamp->format( 'YmdHis' );
4590 $tzMsg = $timestamp->getTimezoneMessage()->inContentLanguage()->text();
4592 $d = $this->contLang
->timeanddate( $ts, false, false ) . " ($tzMsg)";
4594 # Variable replacement
4595 # Because mOutputType is OT_WIKI, this will only process {{subst:xxx}} type tags
4596 $text = $this->replaceVariables( $text );
4598 # This works almost by chance, as the replaceVariables are done before the getUserSig(),
4599 # which may corrupt this parser instance via its wfMessage()->text() call-
4602 if ( strpos( $text, '~~~' ) !== false ) {
4603 $sigText = $this->getUserSig( $user );
4604 $text = strtr( $text, [
4606 '~~~~' => "$sigText $d",
4609 # The main two signature forms used above are time-sensitive
4610 $this->mOutput
->setFlag( 'user-signature' );
4613 # Context links ("pipe tricks"): [[|name]] and [[name (context)|]]
4614 $tc = '[' . Title
::legalChars() . ']';
4615 $nc = '[ _0-9A-Za-z\x80-\xff-]'; # Namespaces can use non-ascii!
4617 // [[ns:page (context)|]]
4618 $p1 = "/\[\[(:?$nc+:|:|)($tc+?)( ?\\($tc+\\))\\|]]/";
4619 // [[ns:page(context)|]] (double-width brackets, added in r40257)
4620 $p4 = "/\[\[(:?$nc+:|:|)($tc+?)( ?($tc+))\\|]]/";
4621 // [[ns:page (context), context|]] (using either single or double-width comma)
4622 $p3 = "/\[\[(:?$nc+:|:|)($tc+?)( ?\\($tc+\\)|)((?:, |,)$tc+|)\\|]]/";
4623 // [[|page]] (reverse pipe trick: add context from page title)
4624 $p2 = "/\[\[\\|($tc+)]]/";
4626 # try $p1 first, to turn "[[A, B (C)|]]" into "[[A, B (C)|A, B]]"
4627 $text = preg_replace( $p1, '[[\\1\\2\\3|\\2]]', $text );
4628 $text = preg_replace( $p4, '[[\\1\\2\\3|\\2]]', $text );
4629 $text = preg_replace( $p3, '[[\\1\\2\\3\\4|\\2]]', $text );
4631 $t = $this->mTitle
->getText();
4633 if ( preg_match( "/^($nc+:|)$tc+?( \\($tc+\\))$/", $t, $m ) ) {
4634 $text = preg_replace( $p2, "[[$m[1]\\1$m[2]|\\1]]", $text );
4635 } elseif ( preg_match( "/^($nc+:|)$tc+?(, $tc+|)$/", $t, $m ) && "$m[1]$m[2]" != '' ) {
4636 $text = preg_replace( $p2, "[[$m[1]\\1$m[2]|\\1]]", $text );
4638 # if there's no context, don't bother duplicating the title
4639 $text = preg_replace( $p2, '[[\\1]]', $text );
4646 * Fetch the user's signature text, if any, and normalize to
4647 * validated, ready-to-insert wikitext.
4648 * If you have pre-fetched the nickname or the fancySig option, you can
4649 * specify them here to save a database query.
4650 * Do not reuse this parser instance after calling getUserSig(),
4651 * as it may have changed if it's the $wgParser.
4653 * @param User &$user
4654 * @param string|bool $nickname Nickname to use or false to use user's default nickname
4655 * @param bool|null $fancySig whether the nicknname is the complete signature
4656 * or null to use default value
4659 public function getUserSig( &$user, $nickname = false, $fancySig = null ) {
4660 $username = $user->getName();
4662 # If not given, retrieve from the user object.
4663 if ( $nickname === false ) {
4664 $nickname = $user->getOption( 'nickname' );
4667 if ( is_null( $fancySig ) ) {
4668 $fancySig = $user->getBoolOption( 'fancysig' );
4671 $nickname = $nickname == null ?
$username : $nickname;
4673 if ( mb_strlen( $nickname ) > $this->siteConfig
->get( 'MaxSigChars' ) ) {
4674 $nickname = $username;
4675 wfDebug( __METHOD__
. ": $username has overlong signature.\n" );
4676 } elseif ( $fancySig !== false ) {
4677 # Sig. might contain markup; validate this
4678 if ( $this->validateSig( $nickname ) !== false ) {
4679 # Validated; clean up (if needed) and return it
4680 return $this->cleanSig( $nickname, true );
4682 # Failed to validate; fall back to the default
4683 $nickname = $username;
4684 wfDebug( __METHOD__
. ": $username has bad XML tags in signature.\n" );
4688 # Make sure nickname doesnt get a sig in a sig
4689 $nickname = self
::cleanSigInSig( $nickname );
4691 # If we're still here, make it a link to the user page
4692 $userText = wfEscapeWikiText( $username );
4693 $nickText = wfEscapeWikiText( $nickname );
4694 $msgName = $user->isAnon() ?
'signature-anon' : 'signature';
4696 return wfMessage( $msgName, $userText, $nickText )->inContentLanguage()
4697 ->title( $this->getTitle() )->text();
4701 * Check that the user's signature contains no bad XML
4703 * @param string $text
4704 * @return string|bool An expanded string, or false if invalid.
4706 public function validateSig( $text ) {
4707 return Xml
::isWellFormedXmlFragment( $text ) ?
$text : false;
4711 * Clean up signature text
4713 * 1) Strip 3, 4 or 5 tildes out of signatures @see cleanSigInSig
4714 * 2) Substitute all transclusions
4716 * @param string $text
4717 * @param bool $parsing Whether we're cleaning (preferences save) or parsing
4718 * @return string Signature text
4720 public function cleanSig( $text, $parsing = false ) {
4723 $magicScopeVariable = $this->lock();
4724 $this->startParse( $wgTitle, new ParserOptions
, self
::OT_PREPROCESS
, true );
4727 # Option to disable this feature
4728 if ( !$this->mOptions
->getCleanSignatures() ) {
4732 # @todo FIXME: Regex doesn't respect extension tags or nowiki
4733 # => Move this logic to braceSubstitution()
4734 $substWord = $this->magicWordFactory
->get( 'subst' );
4735 $substRegex = '/\{\{(?!(?:' . $substWord->getBaseRegex() . '))/x' . $substWord->getRegexCase();
4736 $substText = '{{' . $substWord->getSynonym( 0 );
4738 $text = preg_replace( $substRegex, $substText, $text );
4739 $text = self
::cleanSigInSig( $text );
4740 $dom = $this->preprocessToDom( $text );
4741 $frame = $this->getPreprocessor()->newFrame();
4742 $text = $frame->expand( $dom );
4745 $text = $this->mStripState
->unstripBoth( $text );
4752 * Strip 3, 4 or 5 tildes out of signatures.
4754 * @param string $text
4755 * @return string Signature text with /~{3,5}/ removed
4757 public static function cleanSigInSig( $text ) {
4758 $text = preg_replace( '/~{3,5}/', '', $text );
4763 * Set up some variables which are usually set up in parse()
4764 * so that an external function can call some class members with confidence
4766 * @param Title|null $title
4767 * @param ParserOptions $options
4768 * @param int $outputType
4769 * @param bool $clearState
4771 public function startExternalParse( Title
$title = null, ParserOptions
$options,
4772 $outputType, $clearState = true
4774 $this->startParse( $title, $options, $outputType, $clearState );
4778 * @param Title|null $title
4779 * @param ParserOptions $options
4780 * @param int $outputType
4781 * @param bool $clearState
4783 private function startParse( Title
$title = null, ParserOptions
$options,
4784 $outputType, $clearState = true
4786 $this->setTitle( $title );
4787 $this->mOptions
= $options;
4788 $this->setOutputType( $outputType );
4789 if ( $clearState ) {
4790 $this->clearState();
4795 * Wrapper for preprocess()
4797 * @param string $text The text to preprocess
4798 * @param ParserOptions $options
4799 * @param Title|null $title Title object or null to use $wgTitle
4802 public function transformMsg( $text, $options, $title = null ) {
4803 static $executing = false;
4805 # Guard against infinite recursion
4816 $text = $this->preprocess( $text, $title, $options );
4823 * Create an HTML-style tag, e.g. "<yourtag>special text</yourtag>"
4824 * The callback should have the following form:
4825 * function myParserHook( $text, $params, $parser, $frame ) { ... }
4827 * Transform and return $text. Use $parser for any required context, e.g. use
4828 * $parser->getTitle() and $parser->getOptions() not $wgTitle or $wgOut->mParserOptions
4830 * Hooks may return extended information by returning an array, of which the
4831 * first numbered element (index 0) must be the return string, and all other
4832 * entries are extracted into local variables within an internal function
4833 * in the Parser class.
4835 * This interface (introduced r61913) appears to be undocumented, but
4836 * 'markerType' is used by some core tag hooks to override which strip
4837 * array their results are placed in. **Use great caution if attempting
4838 * this interface, as it is not documented and injudicious use could smash
4839 * private variables.**
4841 * @param string $tag The tag to use, e.g. 'hook' for "<hook>"
4842 * @param callable $callback The callback function (and object) to use for the tag
4843 * @throws MWException
4844 * @return callable|null The old value of the mTagHooks array associated with the hook
4846 public function setHook( $tag, callable
$callback ) {
4847 $tag = strtolower( $tag );
4848 if ( preg_match( '/[<>\r\n]/', $tag, $m ) ) {
4849 throw new MWException( "Invalid character {$m[0]} in setHook('$tag', ...) call" );
4851 $oldVal = $this->mTagHooks
[$tag] ??
null;
4852 $this->mTagHooks
[$tag] = $callback;
4853 if ( !in_array( $tag, $this->mStripList
) ) {
4854 $this->mStripList
[] = $tag;
4861 * As setHook(), but letting the contents be parsed.
4863 * Transparent tag hooks are like regular XML-style tag hooks, except they
4864 * operate late in the transformation sequence, on HTML instead of wikitext.
4866 * This is probably obsoleted by things dealing with parser frames?
4867 * The only extension currently using it is geoserver.
4870 * @todo better document or deprecate this
4872 * @param string $tag The tag to use, e.g. 'hook' for "<hook>"
4873 * @param callable $callback The callback function (and object) to use for the tag
4874 * @throws MWException
4875 * @return callable|null The old value of the mTagHooks array associated with the hook
4877 public function setTransparentTagHook( $tag, callable
$callback ) {
4878 $tag = strtolower( $tag );
4879 if ( preg_match( '/[<>\r\n]/', $tag, $m ) ) {
4880 throw new MWException( "Invalid character {$m[0]} in setTransparentHook('$tag', ...) call" );
4882 $oldVal = $this->mTransparentTagHooks
[$tag] ??
null;
4883 $this->mTransparentTagHooks
[$tag] = $callback;
4889 * Remove all tag hooks
4891 public function clearTagHooks() {
4892 $this->mTagHooks
= [];
4893 $this->mFunctionTagHooks
= [];
4894 $this->mStripList
= $this->mDefaultStripList
;
4898 * Create a function, e.g. {{sum:1|2|3}}
4899 * The callback function should have the form:
4900 * function myParserFunction( &$parser, $arg1, $arg2, $arg3 ) { ... }
4902 * Or with Parser::SFH_OBJECT_ARGS:
4903 * function myParserFunction( $parser, $frame, $args ) { ... }
4905 * The callback may either return the text result of the function, or an array with the text
4906 * in element 0, and a number of flags in the other elements. The names of the flags are
4907 * specified in the keys. Valid flags are:
4908 * found The text returned is valid, stop processing the template. This
4910 * nowiki Wiki markup in the return value should be escaped
4911 * isHTML The returned text is HTML, armour it against wikitext transformation
4913 * @param string $id The magic word ID
4914 * @param callable $callback The callback function (and object) to use
4915 * @param int $flags A combination of the following flags:
4916 * Parser::SFH_NO_HASH No leading hash, i.e. {{plural:...}} instead of {{#if:...}}
4918 * Parser::SFH_OBJECT_ARGS Pass the template arguments as PPNode objects instead of text.
4919 * This allows for conditional expansion of the parse tree, allowing you to eliminate dead
4920 * branches and thus speed up parsing. It is also possible to analyse the parse tree of
4921 * the arguments, and to control the way they are expanded.
4923 * The $frame parameter is a PPFrame. This can be used to produce expanded text from the
4924 * arguments, for instance:
4925 * $text = isset( $args[0] ) ? $frame->expand( $args[0] ) : '';
4927 * For technical reasons, $args[0] is pre-expanded and will be a string. This may change in
4928 * future versions. Please call $frame->expand() on it anyway so that your code keeps
4929 * working if/when this is changed.
4931 * If you want whitespace to be trimmed from $args, you need to do it yourself, post-
4934 * Please read the documentation in includes/parser/Preprocessor.php for more information
4935 * about the methods available in PPFrame and PPNode.
4937 * @throws MWException
4938 * @return string|callable The old callback function for this name, if any
4940 public function setFunctionHook( $id, callable
$callback, $flags = 0 ) {
4941 $oldVal = isset( $this->mFunctionHooks
[$id] ) ?
$this->mFunctionHooks
[$id][0] : null;
4942 $this->mFunctionHooks
[$id] = [ $callback, $flags ];
4944 # Add to function cache
4945 $mw = $this->magicWordFactory
->get( $id );
4947 throw new MWException( __METHOD__
. '() expecting a magic word identifier.' );
4950 $synonyms = $mw->getSynonyms();
4951 $sensitive = intval( $mw->isCaseSensitive() );
4953 foreach ( $synonyms as $syn ) {
4955 if ( !$sensitive ) {
4956 $syn = $this->contLang
->lc( $syn );
4959 if ( !( $flags & self
::SFH_NO_HASH
) ) {
4962 # Remove trailing colon
4963 if ( substr( $syn, -1, 1 ) === ':' ) {
4964 $syn = substr( $syn, 0, -1 );
4966 $this->mFunctionSynonyms
[$sensitive][$syn] = $id;
4972 * Get all registered function hook identifiers
4976 public function getFunctionHooks() {
4977 $this->firstCallInit();
4978 return array_keys( $this->mFunctionHooks
);
4982 * Create a tag function, e.g. "<test>some stuff</test>".
4983 * Unlike tag hooks, tag functions are parsed at preprocessor level.
4984 * Unlike parser functions, their content is not preprocessed.
4985 * @param string $tag
4986 * @param callable $callback
4988 * @throws MWException
4991 public function setFunctionTagHook( $tag, callable
$callback, $flags ) {
4992 $tag = strtolower( $tag );
4993 if ( preg_match( '/[<>\r\n]/', $tag, $m ) ) {
4994 throw new MWException( "Invalid character {$m[0]} in setFunctionTagHook('$tag', ...) call" );
4996 $old = $this->mFunctionTagHooks
[$tag] ??
null;
4997 $this->mFunctionTagHooks
[$tag] = [ $callback, $flags ];
4999 if ( !in_array( $tag, $this->mStripList
) ) {
5000 $this->mStripList
[] = $tag;
5007 * Replace "<!--LINK-->" link placeholders with actual links, in the buffer
5008 * Placeholders created in Linker::link()
5010 * @param string &$text
5011 * @param int $options
5013 public function replaceLinkHolders( &$text, $options = 0 ) {
5014 $this->mLinkHolders
->replace( $text );
5018 * Replace "<!--LINK-->" link placeholders with plain text of links
5019 * (not HTML-formatted).
5021 * @param string $text
5024 public function replaceLinkHoldersText( $text ) {
5025 return $this->mLinkHolders
->replaceText( $text );
5029 * Renders an image gallery from a text with one line per image.
5030 * text labels may be given by using |-style alternative text. E.g.
5031 * Image:one.jpg|The number "1"
5032 * Image:tree.jpg|A tree
5033 * given as text will return the HTML of a gallery with two images,
5034 * labeled 'The number "1"' and
5037 * @param string $text
5038 * @param array $params
5039 * @return string HTML
5041 public function renderImageGallery( $text, $params ) {
5043 if ( isset( $params['mode'] ) ) {
5044 $mode = $params['mode'];
5048 $ig = ImageGalleryBase
::factory( $mode );
5049 } catch ( Exception
$e ) {
5050 // If invalid type set, fallback to default.
5051 $ig = ImageGalleryBase
::factory( false );
5054 $ig->setContextTitle( $this->mTitle
);
5055 $ig->setShowBytes( false );
5056 $ig->setShowDimensions( false );
5057 $ig->setShowFilename( false );
5058 $ig->setParser( $this );
5059 $ig->setHideBadImages();
5060 $ig->setAttributes( Sanitizer
::validateTagAttributes( $params, 'ul' ) );
5062 if ( isset( $params['showfilename'] ) ) {
5063 $ig->setShowFilename( true );
5065 $ig->setShowFilename( false );
5067 if ( isset( $params['caption'] ) ) {
5068 // NOTE: We aren't passing a frame here or below. Frame info
5069 // is currently opaque to Parsoid, which acts on OT_PREPROCESS.
5070 // See T107332#4030581
5071 $caption = $this->recursiveTagParse( $params['caption'] );
5072 $ig->setCaptionHtml( $caption );
5074 if ( isset( $params['perrow'] ) ) {
5075 $ig->setPerRow( $params['perrow'] );
5077 if ( isset( $params['widths'] ) ) {
5078 $ig->setWidths( $params['widths'] );
5080 if ( isset( $params['heights'] ) ) {
5081 $ig->setHeights( $params['heights'] );
5083 $ig->setAdditionalOptions( $params );
5085 // Avoid PHP 7.1 warning from passing $this by reference
5087 Hooks
::run( 'BeforeParserrenderImageGallery', [ &$parser, &$ig ] );
5089 $lines = StringUtils
::explode( "\n", $text );
5090 foreach ( $lines as $line ) {
5091 # match lines like these:
5092 # Image:someimage.jpg|This is some image
5094 preg_match( "/^([^|]+)(\\|(.*))?$/", $line, $matches );
5096 if ( count( $matches ) == 0 ) {
5100 if ( strpos( $matches[0], '%' ) !== false ) {
5101 $matches[1] = rawurldecode( $matches[1] );
5103 $title = Title
::newFromText( $matches[1], NS_FILE
);
5104 if ( is_null( $title ) ) {
5105 # Bogus title. Ignore these so we don't bomb out later.
5109 # We need to get what handler the file uses, to figure out parameters.
5110 # Note, a hook can overide the file name, and chose an entirely different
5111 # file (which potentially could be of a different type and have different handler).
5114 Hooks
::run( 'BeforeParserFetchFileAndTitle',
5115 [ $this, $title, &$options, &$descQuery ] );
5116 # Don't register it now, as TraditionalImageGallery does that later.
5117 $file = $this->fetchFileNoRegister( $title, $options );
5118 $handler = $file ?
$file->getHandler() : false;
5121 'img_alt' => 'gallery-internal-alt',
5122 'img_link' => 'gallery-internal-link',
5125 $paramMap +
= $handler->getParamMap();
5126 // We don't want people to specify per-image widths.
5127 // Additionally the width parameter would need special casing anyhow.
5128 unset( $paramMap['img_width'] );
5131 $mwArray = $this->magicWordFactory
->newArray( array_keys( $paramMap ) );
5136 $handlerOptions = [];
5137 if ( isset( $matches[3] ) ) {
5138 // look for an |alt= definition while trying not to break existing
5139 // captions with multiple pipes (|) in it, until a more sensible grammar
5140 // is defined for images in galleries
5142 // FIXME: Doing recursiveTagParse at this stage, and the trim before
5143 // splitting on '|' is a bit odd, and different from makeImage.
5144 $matches[3] = $this->recursiveTagParse( trim( $matches[3] ) );
5145 // Protect LanguageConverter markup
5146 $parameterMatches = StringUtils
::delimiterExplode(
5147 '-{', '}-', '|', $matches[3], true /* nested */
5150 foreach ( $parameterMatches as $parameterMatch ) {
5151 list( $magicName, $match ) = $mwArray->matchVariableStartToEnd( $parameterMatch );
5153 $paramName = $paramMap[$magicName];
5155 switch ( $paramName ) {
5156 case 'gallery-internal-alt':
5157 $alt = $this->stripAltText( $match, false );
5159 case 'gallery-internal-link':
5160 $linkValue = $this->stripAltText( $match, false );
5161 if ( preg_match( '/^-{R|(.*)}-$/', $linkValue ) ) {
5162 // Result of LanguageConverter::markNoConversion
5163 // invoked on an external link.
5164 $linkValue = substr( $linkValue, 4, -2 );
5166 list( $type, $target ) = $this->parseLinkParameter( $linkValue );
5167 if ( $type === 'link-url' ) {
5169 $this->mOutput
->addExternalLink( $target );
5170 } elseif ( $type === 'link-title' ) {
5171 $link = $target->getLinkURL();
5172 $this->mOutput
->addLink( $target );
5176 // Must be a handler specific parameter.
5177 if ( $handler->validateParam( $paramName, $match ) ) {
5178 $handlerOptions[$paramName] = $match;
5180 // Guess not, consider it as caption.
5181 wfDebug( "$parameterMatch failed parameter validation\n" );
5182 $label = $parameterMatch;
5188 $label = $parameterMatch;
5193 $ig->add( $title, $label, $alt, $link, $handlerOptions );
5195 $html = $ig->toHTML();
5196 Hooks
::run( 'AfterParserFetchFileAndTitle', [ $this, $ig, &$html ] );
5201 * @param MediaHandler $handler
5204 public function getImageParams( $handler ) {
5206 $handlerClass = get_class( $handler );
5210 if ( !isset( $this->mImageParams
[$handlerClass] ) ) {
5211 # Initialise static lists
5212 static $internalParamNames = [
5213 'horizAlign' => [ 'left', 'right', 'center', 'none' ],
5214 'vertAlign' => [ 'baseline', 'sub', 'super', 'top', 'text-top', 'middle',
5215 'bottom', 'text-bottom' ],
5216 'frame' => [ 'thumbnail', 'manualthumb', 'framed', 'frameless',
5217 'upright', 'border', 'link', 'alt', 'class' ],
5219 static $internalParamMap;
5220 if ( !$internalParamMap ) {
5221 $internalParamMap = [];
5222 foreach ( $internalParamNames as $type => $names ) {
5223 foreach ( $names as $name ) {
5224 // For grep: img_left, img_right, img_center, img_none,
5225 // img_baseline, img_sub, img_super, img_top, img_text_top, img_middle,
5226 // img_bottom, img_text_bottom,
5227 // img_thumbnail, img_manualthumb, img_framed, img_frameless, img_upright,
5228 // img_border, img_link, img_alt, img_class
5229 $magicName = str_replace( '-', '_', "img_$name" );
5230 $internalParamMap[$magicName] = [ $type, $name ];
5235 # Add handler params
5236 $paramMap = $internalParamMap;
5238 $handlerParamMap = $handler->getParamMap();
5239 foreach ( $handlerParamMap as $magic => $paramName ) {
5240 $paramMap[$magic] = [ 'handler', $paramName ];
5243 $this->mImageParams
[$handlerClass] = $paramMap;
5244 $this->mImageParamsMagicArray
[$handlerClass] =
5245 $this->magicWordFactory
->newArray( array_keys( $paramMap ) );
5247 return [ $this->mImageParams
[$handlerClass], $this->mImageParamsMagicArray
[$handlerClass] ];
5251 * Parse image options text and use it to make an image
5253 * @param Title $title
5254 * @param string $options
5255 * @param LinkHolderArray|bool $holders
5256 * @return string HTML
5258 public function makeImage( $title, $options, $holders = false ) {
5259 # Check if the options text is of the form "options|alt text"
5261 # * thumbnail make a thumbnail with enlarge-icon and caption, alignment depends on lang
5262 # * left no resizing, just left align. label is used for alt= only
5263 # * right same, but right aligned
5264 # * none same, but not aligned
5265 # * ___px scale to ___ pixels width, no aligning. e.g. use in taxobox
5266 # * center center the image
5267 # * frame Keep original image size, no magnify-button.
5268 # * framed Same as "frame"
5269 # * frameless like 'thumb' but without a frame. Keeps user preferences for width
5270 # * upright reduce width for upright images, rounded to full __0 px
5271 # * border draw a 1px border around the image
5272 # * alt Text for HTML alt attribute (defaults to empty)
5273 # * class Set a class for img node
5274 # * link Set the target of the image link. Can be external, interwiki, or local
5275 # vertical-align values (no % or length right now):
5285 # Protect LanguageConverter markup when splitting into parts
5286 $parts = StringUtils
::delimiterExplode(
5287 '-{', '}-', '|', $options, true /* allow nesting */
5290 # Give extensions a chance to select the file revision for us
5293 Hooks
::run( 'BeforeParserFetchFileAndTitle',
5294 [ $this, $title, &$options, &$descQuery ] );
5295 # Fetch and register the file (file title may be different via hooks)
5296 list( $file, $title ) = $this->fetchFileAndTitle( $title, $options );
5299 $handler = $file ?
$file->getHandler() : false;
5301 list( $paramMap, $mwArray ) = $this->getImageParams( $handler );
5304 $this->addTrackingCategory( 'broken-file-category' );
5307 # Process the input parameters
5309 $params = [ 'frame' => [], 'handler' => [],
5310 'horizAlign' => [], 'vertAlign' => [] ];
5311 $seenformat = false;
5312 foreach ( $parts as $part ) {
5313 $part = trim( $part );
5314 list( $magicName, $value ) = $mwArray->matchVariableStartToEnd( $part );
5316 if ( isset( $paramMap[$magicName] ) ) {
5317 list( $type, $paramName ) = $paramMap[$magicName];
5319 # Special case; width and height come in one variable together
5320 if ( $type === 'handler' && $paramName === 'width' ) {
5321 $parsedWidthParam = self
::parseWidthParam( $value );
5322 if ( isset( $parsedWidthParam['width'] ) ) {
5323 $width = $parsedWidthParam['width'];
5324 if ( $handler->validateParam( 'width', $width ) ) {
5325 $params[$type]['width'] = $width;
5329 if ( isset( $parsedWidthParam['height'] ) ) {
5330 $height = $parsedWidthParam['height'];
5331 if ( $handler->validateParam( 'height', $height ) ) {
5332 $params[$type]['height'] = $height;
5336 # else no validation -- T15436
5338 if ( $type === 'handler' ) {
5339 # Validate handler parameter
5340 $validated = $handler->validateParam( $paramName, $value );
5342 # Validate internal parameters
5343 switch ( $paramName ) {
5347 # @todo FIXME: Possibly check validity here for
5348 # manualthumb? downstream behavior seems odd with
5349 # missing manual thumbs.
5351 $value = $this->stripAltText( $value, $holders );
5354 list( $paramName, $value ) =
5355 $this->parseLinkParameter(
5356 $this->stripAltText( $value, $holders )
5360 if ( $paramName === 'no-link' ) {
5363 if ( $paramName === 'link-url' ) {
5364 if ( $this->mOptions
->getExternalLinkTarget() ) {
5365 $params[$type]['link-target'] = $this->mOptions
->getExternalLinkTarget();
5373 // use first appearing option, discard others.
5374 $validated = !$seenformat;
5378 # Most other things appear to be empty or numeric...
5379 $validated = ( $value === false ||
is_numeric( trim( $value ) ) );
5384 $params[$type][$paramName] = $value;
5388 if ( !$validated ) {
5393 # Process alignment parameters
5394 if ( $params['horizAlign'] ) {
5395 $params['frame']['align'] = key( $params['horizAlign'] );
5397 if ( $params['vertAlign'] ) {
5398 $params['frame']['valign'] = key( $params['vertAlign'] );
5401 $params['frame']['caption'] = $caption;
5403 # Will the image be presented in a frame, with the caption below?
5404 $imageIsFramed = isset( $params['frame']['frame'] )
5405 ||
isset( $params['frame']['framed'] )
5406 ||
isset( $params['frame']['thumbnail'] )
5407 ||
isset( $params['frame']['manualthumb'] );
5409 # In the old days, [[Image:Foo|text...]] would set alt text. Later it
5410 # came to also set the caption, ordinary text after the image -- which
5411 # makes no sense, because that just repeats the text multiple times in
5412 # screen readers. It *also* came to set the title attribute.
5413 # Now that we have an alt attribute, we should not set the alt text to
5414 # equal the caption: that's worse than useless, it just repeats the
5415 # text. This is the framed/thumbnail case. If there's no caption, we
5416 # use the unnamed parameter for alt text as well, just for the time be-
5417 # ing, if the unnamed param is set and the alt param is not.
5418 # For the future, we need to figure out if we want to tweak this more,
5419 # e.g., introducing a title= parameter for the title; ignoring the un-
5420 # named parameter entirely for images without a caption; adding an ex-
5421 # plicit caption= parameter and preserving the old magic unnamed para-
5423 if ( $imageIsFramed ) { # Framed image
5424 if ( $caption === '' && !isset( $params['frame']['alt'] ) ) {
5425 # No caption or alt text, add the filename as the alt text so
5426 # that screen readers at least get some description of the image
5427 $params['frame']['alt'] = $title->getText();
5429 # Do not set $params['frame']['title'] because tooltips don't make sense
5431 } else { # Inline image
5432 if ( !isset( $params['frame']['alt'] ) ) {
5433 # No alt text, use the "caption" for the alt text
5434 if ( $caption !== '' ) {
5435 $params['frame']['alt'] = $this->stripAltText( $caption, $holders );
5437 # No caption, fall back to using the filename for the
5439 $params['frame']['alt'] = $title->getText();
5442 # Use the "caption" for the tooltip text
5443 $params['frame']['title'] = $this->stripAltText( $caption, $holders );
5445 $params['handler']['targetlang'] = $this->getTargetLanguage()->getCode();
5447 Hooks
::run( 'ParserMakeImageParams', [ $title, $file, &$params, $this ] );
5449 # Linker does the rest
5450 $time = $options['time'] ??
false;
5451 $ret = Linker
::makeImageLink( $this, $title, $file, $params['frame'], $params['handler'],
5452 $time, $descQuery, $this->mOptions
->getThumbSize() );
5454 # Give the handler a chance to modify the parser object
5456 $handler->parserTransformHook( $this, $file );
5463 * Parse the value of 'link' parameter in image syntax (`[[File:Foo.jpg|link=<value>]]`).
5465 * Adds an entry to appropriate link tables.
5468 * @param string $value
5469 * @return array of `[ type, target ]`, where:
5470 * - `type` is one of:
5471 * - `null`: Given value is not a valid link target, use default
5472 * - `'no-link'`: Given value is empty, do not generate a link
5473 * - `'link-url'`: Given value is a valid external link
5474 * - `'link-title'`: Given value is a valid internal link
5476 * - When `type` is `null` or `'no-link'`: `false`
5477 * - When `type` is `'link-url'`: URL string corresponding to given value
5478 * - When `type` is `'link-title'`: Title object corresponding to given value
5480 public function parseLinkParameter( $value ) {
5481 $chars = self
::EXT_LINK_URL_CLASS
;
5482 $addr = self
::EXT_LINK_ADDR
;
5483 $prots = $this->mUrlProtocols
;
5486 if ( $value === '' ) {
5488 } elseif ( preg_match( "/^((?i)$prots)/", $value ) ) {
5489 if ( preg_match( "/^((?i)$prots)$addr$chars*$/u", $value, $m ) ) {
5490 $this->mOutput
->addExternalLink( $value );
5495 $linkTitle = Title
::newFromText( $value );
5497 $this->mOutput
->addLink( $linkTitle );
5498 $type = 'link-title';
5499 $target = $linkTitle;
5502 return [ $type, $target ];
5506 * @param string $caption
5507 * @param LinkHolderArray|bool $holders
5508 * @return mixed|string
5510 protected function stripAltText( $caption, $holders ) {
5511 # Strip bad stuff out of the title (tooltip). We can't just use
5512 # replaceLinkHoldersText() here, because if this function is called
5513 # from replaceInternalLinks2(), mLinkHolders won't be up-to-date.
5515 $tooltip = $holders->replaceText( $caption );
5517 $tooltip = $this->replaceLinkHoldersText( $caption );
5520 # make sure there are no placeholders in thumbnail attributes
5521 # that are later expanded to html- so expand them now and
5523 $tooltip = $this->mStripState
->unstripBoth( $tooltip );
5524 # Compatibility hack! In HTML certain entity references not terminated
5525 # by a semicolon are decoded (but not if we're in an attribute; that's
5526 # how link URLs get away without properly escaping & in queries).
5527 # But wikitext has always required semicolon-termination of entities,
5528 # so encode & where needed to avoid decode of semicolon-less entities.
5530 # https://www.w3.org/TR/html5/syntax.html#named-character-references
5531 # T210437 discusses moving this workaround to Sanitizer::stripAllTags.
5532 $tooltip = preg_replace( "/
5533 & # 1. entity prefix
5534 (?= # 2. followed by:
5535 (?: # a. one of the legacy semicolon-less named entities
5536 A(?:Elig|MP|acute|circ|grave|ring|tilde|uml)|
5537 C(?:OPY|cedil)|E(?:TH|acute|circ|grave|uml)|
5538 GT|I(?:acute|circ|grave|uml)|LT|Ntilde|
5539 O(?:acute|circ|grave|slash|tilde|uml)|QUOT|REG|THORN|
5540 U(?:acute|circ|grave|uml)|Yacute|
5541 a(?:acute|c(?:irc|ute)|elig|grave|mp|ring|tilde|uml)|brvbar|
5542 c(?:cedil|edil|urren)|cent(?!erdot;)|copy(?!sr;)|deg|
5543 divide(?!ontimes;)|e(?:acute|circ|grave|th|uml)|
5544 frac(?:1(?:2|4)|34)|
5545 gt(?!c(?:c|ir)|dot|lPar|quest|r(?:a(?:pprox|rr)|dot|eq(?:less|qless)|less|sim);)|
5546 i(?:acute|circ|excl|grave|quest|uml)|laquo|
5547 lt(?!c(?:c|ir)|dot|hree|imes|larr|quest|r(?:Par|i(?:e|f|));)|
5548 m(?:acr|i(?:cro|ddot))|n(?:bsp|tilde)|
5549 not(?!in(?:E|dot|v(?:a|b|c)|)|ni(?:v(?:a|b|c)|);)|
5550 o(?:acute|circ|grave|rd(?:f|m)|slash|tilde|uml)|
5551 p(?:lusmn|ound)|para(?!llel;)|quot|r(?:aquo|eg)|
5552 s(?:ect|hy|up(?:1|2|3)|zlig)|thorn|times(?!b(?:ar|)|d;)|
5553 u(?:acute|circ|grave|ml|uml)|y(?:acute|en|uml)
5555 (?:[^;]|$)) # b. and not followed by a semicolon
5556 # S = study, for efficiency
5557 /Sx", '&', $tooltip );
5558 $tooltip = Sanitizer
::stripAllTags( $tooltip );
5564 * Set a flag in the output object indicating that the content is dynamic and
5565 * shouldn't be cached.
5566 * @deprecated since 1.28; use getOutput()->updateCacheExpiry()
5568 public function disableCache() {
5569 wfDebug( "Parser output marked as uncacheable.\n" );
5570 if ( !$this->mOutput
) {
5571 throw new MWException( __METHOD__
.
5572 " can only be called when actually parsing something" );
5574 $this->mOutput
->updateCacheExpiry( 0 ); // new style, for consistency
5578 * Callback from the Sanitizer for expanding items found in HTML attribute
5579 * values, so they can be safely tested and escaped.
5581 * @param string &$text
5582 * @param bool|PPFrame $frame
5585 public function attributeStripCallback( &$text, $frame = false ) {
5586 $text = $this->replaceVariables( $text, $frame );
5587 $text = $this->mStripState
->unstripBoth( $text );
5596 public function getTags() {
5597 $this->firstCallInit();
5599 array_keys( $this->mTransparentTagHooks
),
5600 array_keys( $this->mTagHooks
),
5601 array_keys( $this->mFunctionTagHooks
)
5609 public function getFunctionSynonyms() {
5610 $this->firstCallInit();
5611 return $this->mFunctionSynonyms
;
5618 public function getUrlProtocols() {
5619 return $this->mUrlProtocols
;
5623 * Replace transparent tags in $text with the values given by the callbacks.
5625 * Transparent tag hooks are like regular XML-style tag hooks, except they
5626 * operate late in the transformation sequence, on HTML instead of wikitext.
5628 * @param string $text
5632 public function replaceTransparentTags( $text ) {
5634 $elements = array_keys( $this->mTransparentTagHooks
);
5635 $text = self
::extractTagsAndParams( $elements, $text, $matches );
5638 foreach ( $matches as $marker => $data ) {
5639 list( $element, $content, $params, $tag ) = $data;
5640 $tagName = strtolower( $element );
5641 if ( isset( $this->mTransparentTagHooks
[$tagName] ) ) {
5642 $output = call_user_func_array(
5643 $this->mTransparentTagHooks
[$tagName],
5644 [ $content, $params, $this ]
5649 $replacements[$marker] = $output;
5651 return strtr( $text, $replacements );
5655 * Break wikitext input into sections, and either pull or replace
5656 * some particular section's text.
5658 * External callers should use the getSection and replaceSection methods.
5660 * @param string $text Page wikitext
5661 * @param string|int $sectionId A section identifier string of the form:
5662 * "<flag1> - <flag2> - ... - <section number>"
5664 * Currently the only recognised flag is "T", which means the target section number
5665 * was derived during a template inclusion parse, in other words this is a template
5666 * section edit link. If no flags are given, it was an ordinary section edit link.
5667 * This flag is required to avoid a section numbering mismatch when a section is
5668 * enclosed by "<includeonly>" (T8563).
5670 * The section number 0 pulls the text before the first heading; other numbers will
5671 * pull the given section along with its lower-level subsections. If the section is
5672 * not found, $mode=get will return $newtext, and $mode=replace will return $text.
5674 * Section 0 is always considered to exist, even if it only contains the empty
5675 * string. If $text is the empty string and section 0 is replaced, $newText is
5678 * @param string $mode One of "get" or "replace"
5679 * @param string $newText Replacement text for section data.
5680 * @return string For "get", the extracted section text.
5681 * for "replace", the whole page with the section replaced.
5683 private function extractSections( $text, $sectionId, $mode, $newText = '' ) {
5684 global $wgTitle; # not generally used but removes an ugly failure mode
5686 $magicScopeVariable = $this->lock();
5687 $this->startParse( $wgTitle, new ParserOptions
, self
::OT_PLAIN
, true );
5689 $frame = $this->getPreprocessor()->newFrame();
5691 # Process section extraction flags
5693 $sectionParts = explode( '-', $sectionId );
5694 $sectionIndex = array_pop( $sectionParts );
5695 foreach ( $sectionParts as $part ) {
5696 if ( $part === 'T' ) {
5697 $flags |
= self
::PTD_FOR_INCLUSION
;
5701 # Check for empty input
5702 if ( strval( $text ) === '' ) {
5703 # Only sections 0 and T-0 exist in an empty document
5704 if ( $sectionIndex == 0 ) {
5705 if ( $mode === 'get' ) {
5711 if ( $mode === 'get' ) {
5719 # Preprocess the text
5720 $root = $this->preprocessToDom( $text, $flags );
5722 # <h> nodes indicate section breaks
5723 # They can only occur at the top level, so we can find them by iterating the root's children
5724 $node = $root->getFirstChild();
5726 # Find the target section
5727 if ( $sectionIndex == 0 ) {
5728 # Section zero doesn't nest, level=big
5729 $targetLevel = 1000;
5732 if ( $node->getName() === 'h' ) {
5733 $bits = $node->splitHeading();
5734 if ( $bits['i'] == $sectionIndex ) {
5735 $targetLevel = $bits['level'];
5739 if ( $mode === 'replace' ) {
5740 $outText .= $frame->expand( $node, PPFrame
::RECOVER_ORIG
);
5742 $node = $node->getNextSibling();
5748 if ( $mode === 'get' ) {
5755 # Find the end of the section, including nested sections
5757 if ( $node->getName() === 'h' ) {
5758 $bits = $node->splitHeading();
5759 $curLevel = $bits['level'];
5760 if ( $bits['i'] != $sectionIndex && $curLevel <= $targetLevel ) {
5764 if ( $mode === 'get' ) {
5765 $outText .= $frame->expand( $node, PPFrame
::RECOVER_ORIG
);
5767 $node = $node->getNextSibling();
5770 # Write out the remainder (in replace mode only)
5771 if ( $mode === 'replace' ) {
5772 # Output the replacement text
5773 # Add two newlines on -- trailing whitespace in $newText is conventionally
5774 # stripped by the editor, so we need both newlines to restore the paragraph gap
5775 # Only add trailing whitespace if there is newText
5776 if ( $newText != "" ) {
5777 $outText .= $newText . "\n\n";
5781 $outText .= $frame->expand( $node, PPFrame
::RECOVER_ORIG
);
5782 $node = $node->getNextSibling();
5786 if ( is_string( $outText ) ) {
5787 # Re-insert stripped tags
5788 $outText = rtrim( $this->mStripState
->unstripBoth( $outText ) );
5795 * This function returns the text of a section, specified by a number ($section).
5796 * A section is text under a heading like == Heading == or \<h1\>Heading\</h1\>, or
5797 * the first section before any such heading (section 0).
5799 * If a section contains subsections, these are also returned.
5801 * @param string $text Text to look in
5802 * @param string|int $sectionId Section identifier as a number or string
5803 * (e.g. 0, 1 or 'T-1').
5804 * @param string $defaultText Default to return if section is not found
5806 * @return string Text of the requested section
5808 public function getSection( $text, $sectionId, $defaultText = '' ) {
5809 return $this->extractSections( $text, $sectionId, 'get', $defaultText );
5813 * This function returns $oldtext after the content of the section
5814 * specified by $section has been replaced with $text. If the target
5815 * section does not exist, $oldtext is returned unchanged.
5817 * @param string $oldText Former text of the article
5818 * @param string|int $sectionId Section identifier as a number or string
5819 * (e.g. 0, 1 or 'T-1').
5820 * @param string $newText Replacing text
5822 * @return string Modified text
5824 public function replaceSection( $oldText, $sectionId, $newText ) {
5825 return $this->extractSections( $oldText, $sectionId, 'replace', $newText );
5829 * Get the ID of the revision we are parsing
5833 public function getRevisionId() {
5834 return $this->mRevisionId
;
5838 * Get the revision object for $this->mRevisionId
5840 * @return Revision|null Either a Revision object or null
5841 * @since 1.23 (public since 1.23)
5843 public function getRevisionObject() {
5844 if ( !is_null( $this->mRevisionObject
) ) {
5845 return $this->mRevisionObject
;
5848 // NOTE: try to get the RevisionObject even if mRevisionId is null.
5849 // This is useful when parsing revision that has not yet been saved.
5850 // However, if we get back a saved revision even though we are in
5851 // preview mode, we'll have to ignore it, see below.
5852 // NOTE: This callback may be used to inject an OLD revision that was
5853 // already loaded, so "current" is a bit of a misnomer. We can't just
5854 // skip it if mRevisionId is set.
5855 $rev = call_user_func(
5856 $this->mOptions
->getCurrentRevisionCallback(), $this->getTitle(), $this
5859 if ( $this->mRevisionId
=== null && $rev && $rev->getId() ) {
5860 // We are in preview mode (mRevisionId is null), and the current revision callback
5861 // returned an existing revision. Ignore it and return null, it's probably the page's
5862 // current revision, which is not what we want here. Note that we do want to call the
5863 // callback to allow the unsaved revision to be injected here, e.g. for
5864 // self-transclusion previews.
5868 // If the parse is for a new revision, then the callback should have
5869 // already been set to force the object and should match mRevisionId.
5870 // If not, try to fetch by mRevisionId for sanity.
5871 if ( $this->mRevisionId
&& $rev && $rev->getId() != $this->mRevisionId
) {
5872 $rev = Revision
::newFromId( $this->mRevisionId
);
5875 $this->mRevisionObject
= $rev;
5877 return $this->mRevisionObject
;
5881 * Get the timestamp associated with the current revision, adjusted for
5882 * the default server-local timestamp
5885 public function getRevisionTimestamp() {
5886 if ( is_null( $this->mRevisionTimestamp
) ) {
5887 $revObject = $this->getRevisionObject();
5888 $timestamp = $revObject ?
$revObject->getTimestamp() : wfTimestampNow();
5890 # The cryptic '' timezone parameter tells to use the site-default
5891 # timezone offset instead of the user settings.
5892 # Since this value will be saved into the parser cache, served
5893 # to other users, and potentially even used inside links and such,
5894 # it needs to be consistent for all visitors.
5895 $this->mRevisionTimestamp
= $this->contLang
->userAdjust( $timestamp, '' );
5897 return $this->mRevisionTimestamp
;
5901 * Get the name of the user that edited the last revision
5903 * @return string User name
5905 public function getRevisionUser() {
5906 if ( is_null( $this->mRevisionUser
) ) {
5907 $revObject = $this->getRevisionObject();
5909 # if this template is subst: the revision id will be blank,
5910 # so just use the current user's name
5912 $this->mRevisionUser
= $revObject->getUserText();
5913 } elseif ( $this->ot
['wiki'] ||
$this->mOptions
->getIsPreview() ) {
5914 $this->mRevisionUser
= $this->getUser()->getName();
5917 return $this->mRevisionUser
;
5921 * Get the size of the revision
5923 * @return int|null Revision size
5925 public function getRevisionSize() {
5926 if ( is_null( $this->mRevisionSize
) ) {
5927 $revObject = $this->getRevisionObject();
5929 # if this variable is subst: the revision id will be blank,
5930 # so just use the parser input size, because the own substituation
5931 # will change the size.
5933 $this->mRevisionSize
= $revObject->getSize();
5935 $this->mRevisionSize
= $this->mInputSize
;
5938 return $this->mRevisionSize
;
5942 * Mutator for $mDefaultSort
5944 * @param string $sort New value
5946 public function setDefaultSort( $sort ) {
5947 $this->mDefaultSort
= $sort;
5948 $this->mOutput
->setProperty( 'defaultsort', $sort );
5952 * Accessor for $mDefaultSort
5953 * Will use the empty string if none is set.
5955 * This value is treated as a prefix, so the
5956 * empty string is equivalent to sorting by
5961 public function getDefaultSort() {
5962 if ( $this->mDefaultSort
!== false ) {
5963 return $this->mDefaultSort
;
5970 * Accessor for $mDefaultSort
5971 * Unlike getDefaultSort(), will return false if none is set
5973 * @return string|bool
5975 public function getCustomDefaultSort() {
5976 return $this->mDefaultSort
;
5979 private static function getSectionNameFromStrippedText( $text ) {
5980 $text = Sanitizer
::normalizeSectionNameWhitespace( $text );
5981 $text = Sanitizer
::decodeCharReferences( $text );
5982 $text = self
::normalizeSectionName( $text );
5986 private static function makeAnchor( $sectionName ) {
5987 return '#' . Sanitizer
::escapeIdForLink( $sectionName );
5990 private function makeLegacyAnchor( $sectionName ) {
5991 $fragmentMode = $this->siteConfig
->get( 'FragmentMode' );
5992 if ( isset( $fragmentMode[1] ) && $fragmentMode[1] === 'legacy' ) {
5993 // ForAttribute() and ForLink() are the same for legacy encoding
5994 $id = Sanitizer
::escapeIdForAttribute( $sectionName, Sanitizer
::ID_FALLBACK
);
5996 $id = Sanitizer
::escapeIdForLink( $sectionName );
6003 * Try to guess the section anchor name based on a wikitext fragment
6004 * presumably extracted from a heading, for example "Header" from
6007 * @param string $text
6008 * @return string Anchor (starting with '#')
6010 public function guessSectionNameFromWikiText( $text ) {
6011 # Strip out wikitext links(they break the anchor)
6012 $text = $this->stripSectionName( $text );
6013 $sectionName = self
::getSectionNameFromStrippedText( $text );
6014 return self
::makeAnchor( $sectionName );
6018 * Same as guessSectionNameFromWikiText(), but produces legacy anchors
6019 * instead, if possible. For use in redirects, since various versions
6020 * of Microsoft browsers interpret Location: headers as something other
6021 * than UTF-8, resulting in breakage.
6023 * @param string $text The section name
6024 * @return string Anchor (starting with '#')
6026 public function guessLegacySectionNameFromWikiText( $text ) {
6027 # Strip out wikitext links(they break the anchor)
6028 $text = $this->stripSectionName( $text );
6029 $sectionName = self
::getSectionNameFromStrippedText( $text );
6030 return $this->makeLegacyAnchor( $sectionName );
6034 * Like guessSectionNameFromWikiText(), but takes already-stripped text as input.
6035 * @param string $text Section name (plain text)
6036 * @return string Anchor (starting with '#')
6038 public static function guessSectionNameFromStrippedText( $text ) {
6039 $sectionName = self
::getSectionNameFromStrippedText( $text );
6040 return self
::makeAnchor( $sectionName );
6044 * Apply the same normalization as code making links to this section would
6046 * @param string $text
6049 private static function normalizeSectionName( $text ) {
6050 # T90902: ensure the same normalization is applied for IDs as to links
6051 $titleParser = MediaWikiServices
::getInstance()->getTitleParser();
6054 $parts = $titleParser->splitTitleString( "#$text" );
6055 } catch ( MalformedTitleException
$ex ) {
6058 return $parts['fragment'];
6062 * Strips a text string of wikitext for use in a section anchor
6064 * Accepts a text string and then removes all wikitext from the
6065 * string and leaves only the resultant text (i.e. the result of
6066 * [[User:WikiSysop|Sysop]] would be "Sysop" and the result of
6067 * [[User:WikiSysop]] would be "User:WikiSysop") - this is intended
6068 * to create valid section anchors by mimicing the output of the
6069 * parser when headings are parsed.
6071 * @param string $text Text string to be stripped of wikitext
6072 * for use in a Section anchor
6073 * @return string Filtered text string
6075 public function stripSectionName( $text ) {
6076 # Strip internal link markup
6077 $text = preg_replace( '/\[\[:?([^[|]+)\|([^[]+)\]\]/', '$2', $text );
6078 $text = preg_replace( '/\[\[:?([^[]+)\|?\]\]/', '$1', $text );
6080 # Strip external link markup
6081 # @todo FIXME: Not tolerant to blank link text
6082 # I.E. [https://www.mediawiki.org] will render as [1] or something depending
6083 # on how many empty links there are on the page - need to figure that out.
6084 $text = preg_replace( '/\[(?i:' . $this->mUrlProtocols
. ')([^ ]+?) ([^[]+)\]/', '$2', $text );
6086 # Parse wikitext quotes (italics & bold)
6087 $text = $this->doQuotes( $text );
6090 $text = StringUtils
::delimiterReplace( '<', '>', '', $text );
6095 * strip/replaceVariables/unstrip for preprocessor regression testing
6097 * @param string $text
6098 * @param Title $title
6099 * @param ParserOptions $options
6100 * @param int $outputType
6104 public function testSrvus( $text, Title
$title, ParserOptions
$options,
6105 $outputType = self
::OT_HTML
6107 $magicScopeVariable = $this->lock();
6108 $this->startParse( $title, $options, $outputType, true );
6110 $text = $this->replaceVariables( $text );
6111 $text = $this->mStripState
->unstripBoth( $text );
6112 $text = Sanitizer
::removeHTMLtags( $text );
6117 * @param string $text
6118 * @param Title $title
6119 * @param ParserOptions $options
6122 public function testPst( $text, Title
$title, ParserOptions
$options ) {
6123 return $this->preSaveTransform( $text, $title, $options->getUser(), $options );
6127 * @param string $text
6128 * @param Title $title
6129 * @param ParserOptions $options
6132 public function testPreprocess( $text, Title
$title, ParserOptions
$options ) {
6133 return $this->testSrvus( $text, $title, $options, self
::OT_PREPROCESS
);
6137 * Call a callback function on all regions of the given text that are not
6138 * inside strip markers, and replace those regions with the return value
6139 * of the callback. For example, with input:
6143 * This will call the callback function twice, with 'aaa' and 'bbb'. Those
6144 * two strings will be replaced with the value returned by the callback in
6148 * @param callable $callback
6152 public function markerSkipCallback( $s, $callback ) {
6155 while ( $i < strlen( $s ) ) {
6156 $markerStart = strpos( $s, self
::MARKER_PREFIX
, $i );
6157 if ( $markerStart === false ) {
6158 $out .= call_user_func( $callback, substr( $s, $i ) );
6161 $out .= call_user_func( $callback, substr( $s, $i, $markerStart - $i ) );
6162 $markerEnd = strpos( $s, self
::MARKER_SUFFIX
, $markerStart );
6163 if ( $markerEnd === false ) {
6164 $out .= substr( $s, $markerStart );
6167 $markerEnd +
= strlen( self
::MARKER_SUFFIX
);
6168 $out .= substr( $s, $markerStart, $markerEnd - $markerStart );
6177 * Remove any strip markers found in the given text.
6179 * @param string $text
6182 public function killMarkers( $text ) {
6183 return $this->mStripState
->killMarkers( $text );
6187 * Save the parser state required to convert the given half-parsed text to
6188 * HTML. "Half-parsed" in this context means the output of
6189 * recursiveTagParse() or internalParse(). This output has strip markers
6190 * from replaceVariables (extensionSubstitution() etc.), and link
6191 * placeholders from replaceLinkHolders().
6193 * Returns an array which can be serialized and stored persistently. This
6194 * array can later be loaded into another parser instance with
6195 * unserializeHalfParsedText(). The text can then be safely incorporated into
6196 * the return value of a parser hook.
6198 * @deprecated since 1.31
6199 * @param string $text
6203 public function serializeHalfParsedText( $text ) {
6204 wfDeprecated( __METHOD__
, '1.31' );
6207 'version' => self
::HALF_PARSED_VERSION
,
6208 'stripState' => $this->mStripState
->getSubState( $text ),
6209 'linkHolders' => $this->mLinkHolders
->getSubArray( $text )
6215 * Load the parser state given in the $data array, which is assumed to
6216 * have been generated by serializeHalfParsedText(). The text contents is
6217 * extracted from the array, and its markers are transformed into markers
6218 * appropriate for the current Parser instance. This transformed text is
6219 * returned, and can be safely included in the return value of a parser
6222 * If the $data array has been stored persistently, the caller should first
6223 * check whether it is still valid, by calling isValidHalfParsedText().
6225 * @deprecated since 1.31
6226 * @param array $data Serialized data
6227 * @throws MWException
6230 public function unserializeHalfParsedText( $data ) {
6231 wfDeprecated( __METHOD__
, '1.31' );
6232 if ( !isset( $data['version'] ) ||
$data['version'] != self
::HALF_PARSED_VERSION
) {
6233 throw new MWException( __METHOD__
. ': invalid version' );
6236 # First, extract the strip state.
6237 $texts = [ $data['text'] ];
6238 $texts = $this->mStripState
->merge( $data['stripState'], $texts );
6240 # Now renumber links
6241 $texts = $this->mLinkHolders
->mergeForeign( $data['linkHolders'], $texts );
6243 # Should be good to go.
6248 * Returns true if the given array, presumed to be generated by
6249 * serializeHalfParsedText(), is compatible with the current version of the
6252 * @deprecated since 1.31
6253 * @param array $data
6257 public function isValidHalfParsedText( $data ) {
6258 wfDeprecated( __METHOD__
, '1.31' );
6259 return isset( $data['version'] ) && $data['version'] == self
::HALF_PARSED_VERSION
;
6263 * Parsed a width param of imagelink like 300px or 200x300px
6265 * @param string $value
6266 * @param bool $parseHeight
6271 public static function parseWidthParam( $value, $parseHeight = true ) {
6272 $parsedWidthParam = [];
6273 if ( $value === '' ) {
6274 return $parsedWidthParam;
6277 # (T15500) In both cases (width/height and width only),
6278 # permit trailing "px" for backward compatibility.
6279 if ( $parseHeight && preg_match( '/^([0-9]*)x([0-9]*)\s*(?:px)?\s*$/', $value, $m ) ) {
6280 $width = intval( $m[1] );
6281 $height = intval( $m[2] );
6282 $parsedWidthParam['width'] = $width;
6283 $parsedWidthParam['height'] = $height;
6284 } elseif ( preg_match( '/^[0-9]*\s*(?:px)?\s*$/', $value ) ) {
6285 $width = intval( $value );
6286 $parsedWidthParam['width'] = $width;
6288 return $parsedWidthParam;
6292 * Lock the current instance of the parser.
6294 * This is meant to stop someone from calling the parser
6295 * recursively and messing up all the strip state.
6297 * @throws MWException If parser is in a parse
6298 * @return ScopedCallback The lock will be released once the return value goes out of scope.
6300 protected function lock() {
6301 if ( $this->mInParse
) {
6302 throw new MWException( "Parser state cleared while parsing. "
6303 . "Did you call Parser::parse recursively? Lock is held by: " . $this->mInParse
);
6306 // Save the backtrace when locking, so that if some code tries locking again,
6307 // we can print the lock owner's backtrace for easier debugging
6309 $this->mInParse
= $e->getTraceAsString();
6311 $recursiveCheck = new ScopedCallback( function () {
6312 $this->mInParse
= false;
6315 return $recursiveCheck;
6319 * Strip outer <p></p> tag from the HTML source of a single paragraph.
6321 * Returns original HTML if the <p/> tag has any attributes, if there's no wrapping <p/> tag,
6322 * or if there is more than one <p/> tag in the input HTML.
6324 * @param string $html
6328 public static function stripOuterParagraph( $html ) {
6330 if ( preg_match( '/^<p>(.*)\n?<\/p>\n?$/sU', $html, $m ) ) {
6331 if ( strpos( $m[1], '</p>' ) === false ) {
6340 * Return this parser if it is not doing anything, otherwise
6341 * get a fresh parser. You can use this method by doing
6342 * $myParser = $wgParser->getFreshParser(), or more simply
6343 * $wgParser->getFreshParser()->parse( ... );
6344 * if you're unsure if $wgParser is safe to use.
6347 * @return Parser A parser object that is not parsing anything
6349 public function getFreshParser() {
6350 if ( $this->mInParse
) {
6351 return $this->factory
->create();
6358 * Set's up the PHP implementation of OOUI for use in this request
6359 * and instructs OutputPage to enable OOUI for itself.
6363 public function enableOOUI() {
6364 OutputPage
::setupOOUI();
6365 $this->mOutput
->setEnableOOUI( true );