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\BadFileLookup
;
24 use MediaWiki\Config\ServiceOptions
;
25 use MediaWiki\Linker\LinkRenderer
;
26 use MediaWiki\Linker\LinkRendererFactory
;
27 use MediaWiki\Linker\LinkTarget
;
28 use MediaWiki\MediaWikiServices
;
29 use MediaWiki\Special\SpecialPageFactory
;
30 use Psr\Log\NullLogger
;
31 use Wikimedia\ScopedCallback
;
32 use Psr\Log\LoggerInterface
;
35 * @defgroup Parser Parser
39 * PHP Parser - Processes wiki markup (which uses a more user-friendly
40 * syntax, such as "[[link]]" for making links), and provides a one-way
41 * transformation of that wiki markup it into (X)HTML output / markup
42 * (which in turn the browser understands, and can display).
44 * There are seven main entry points into the Parser class:
47 * produces HTML output
48 * - Parser::preSaveTransform()
49 * produces altered wiki markup
50 * - Parser::preprocess()
51 * removes HTML comments and expands templates
52 * - Parser::cleanSig() and Parser::cleanSigInSig()
53 * cleans a signature before saving it to preferences
54 * - Parser::getSection()
55 * return the content of a section from an article for section editing
56 * - Parser::replaceSection()
57 * replaces a section by number inside an article
58 * - Parser::getPreloadText()
59 * removes <noinclude> sections and <includeonly> tags
61 * @warning $wgUser or $wgTitle or $wgRequest or $wgLang. Keep them away!
64 * $wgNamespacesWithSubpages
66 * @par Settings only within ParserOptions:
67 * $wgAllowExternalImages
68 * $wgAllowSpecialInclusion
76 * Update this version number when the ParserOutput format
77 * changes in an incompatible way, so the parser cache
78 * can automatically discard old data.
80 const VERSION
= '1.6.4';
83 * Update this version number when the output of serialiseHalfParsedText()
84 * changes in an incompatible way
86 const HALF_PARSED_VERSION
= 2;
88 # Flags for Parser::setFunctionHook
89 const SFH_NO_HASH
= 1;
90 const SFH_OBJECT_ARGS
= 2;
92 # Constants needed for external link processing
93 # Everything except bracket, space, or control characters
94 # \p{Zs} is unicode 'separator, space' category. It covers the space 0x20
95 # as well as U+3000 is IDEOGRAPHIC SPACE for T21052
96 # \x{FFFD} is the Unicode replacement character, which Preprocessor_DOM
97 # uses to replace invalid HTML characters.
98 const EXT_LINK_URL_CLASS
= '[^][<>"\\x00-\\x20\\x7F\p{Zs}\x{FFFD}]';
99 # Simplified expression to match an IPv4 or IPv6 address, or
100 # at least one character of a host name (embeds EXT_LINK_URL_CLASS)
101 const EXT_LINK_ADDR
= '(?:[0-9.]+|\\[(?i:[0-9a-f:.]+)\\]|[^][<>"\\x00-\\x20\\x7F\p{Zs}\x{FFFD}])';
102 # RegExp to make image URLs (embeds IPv6 part of EXT_LINK_ADDR)
103 // phpcs:ignore Generic.Files.LineLength
104 const EXT_IMAGE_REGEX
= '/^(http:\/\/|https:\/\/)((?:\\[(?i:[0-9a-f:.]+)\\])?[^][<>"\\x00-\\x20\\x7F\p{Zs}\x{FFFD}]+)
105 \\/([A-Za-z0-9_.,~%\\-+&;#*?!=()@\\x80-\\xFF]+)\\.((?i)gif|png|jpg|jpeg)$/Sxu';
107 # Regular expression for a non-newline space
108 const SPACE_NOT_NL
= '(?:\t| |&\#0*160;|&\#[Xx]0*[Aa]0;|\p{Zs})';
110 # Flags for preprocessToDom
111 const PTD_FOR_INCLUSION
= 1;
113 # Allowed values for $this->mOutputType
114 # Parameter to startExternalParse().
115 const OT_HTML
= 1; # like parse()
116 const OT_WIKI
= 2; # like preSaveTransform()
117 const OT_PREPROCESS
= 3; # like preprocess()
119 const OT_PLAIN
= 4; # like extractSections() - portions of the original are returned unchanged.
122 * @var string Prefix and suffix for temporary replacement strings
123 * for the multipass parser.
125 * \x7f should never appear in input as it's disallowed in XML.
126 * Using it at the front also gives us a little extra robustness
127 * since it shouldn't match when butted up against identifier-like
130 * Must not consist of all title characters, or else it will change
131 * the behavior of <nowiki> in a link.
133 * Must have a character that needs escaping in attributes, otherwise
134 * someone could put a strip marker in an attribute, to get around
135 * escaping quote marks, and break out of the attribute. Thus we add
138 const MARKER_SUFFIX
= "-QINU`\"'\x7f";
139 const MARKER_PREFIX
= "\x7f'\"`UNIQ-";
141 # Markers used for wrapping the table of contents
142 const TOC_START
= '<mw:toc>';
143 const TOC_END
= '</mw:toc>';
145 /** @var int Assume that no output will later be saved this many seconds after parsing */
149 public $mTagHooks = [];
150 public $mTransparentTagHooks = [];
151 public $mFunctionHooks = [];
152 public $mFunctionSynonyms = [ 0 => [], 1 => [] ];
153 public $mFunctionTagHooks = [];
154 public $mStripList = [];
155 public $mDefaultStripList = [];
156 public $mVarCache = [];
157 public $mImageParams = [];
158 public $mImageParamsMagicArray = [];
159 public $mMarkerIndex = 0;
161 * @var bool Whether firstCallInit still needs to be called
163 public $mFirstCall = true;
165 # Initialised by initialiseVariables()
168 * @var MagicWordArray
173 * @var MagicWordArray
178 * @deprecated since 1.34, there should be no need to use this
183 # Initialised in constructor
184 public $mExtLinkBracketedRegex, $mUrlProtocols;
186 # Initialized in getPreprocessor()
187 /** @var Preprocessor */
188 public $mPreprocessor;
190 # Cleared with clearState():
202 public $mIncludeCount;
204 * @var LinkHolderArray
206 public $mLinkHolders;
209 public $mIncludeSizes, $mPPNodeCount, $mGeneratedPPNodeCount, $mHighestExpansionDepth;
210 public $mDefaultSort;
211 public $mTplRedirCache, $mHeadings, $mDoubleUnderscores;
212 public $mExpensiveFunctionCount; # number of expensive parser function calls
213 public $mShowToc, $mForceTocPosition;
215 public $mTplDomCache;
220 public $mUser; # User object; only used when doing pre-save transform
223 # These are variables reset at least once per parse regardless of $clearState
233 public $mTitle; # Title context, used for self-link rendering and similar things
234 public $mOutputType; # Output type, one of the OT_xxx constants
235 public $ot; # Shortcut alias, see setOutputType()
236 public $mRevisionObject; # The revision object of the specified revision ID
237 public $mRevisionId; # ID to display in {{REVISIONID}} tags
238 public $mRevisionTimestamp; # The timestamp of the specified revision ID
239 public $mRevisionUser; # User to display in {{REVISIONUSER}} tag
240 public $mRevisionSize; # Size to display in {{REVISIONSIZE}} variable
241 public $mRevIdForTs; # The revision ID which was used to fetch the timestamp
242 public $mInputSize = false; # For {{PAGESIZE}} on current page.
245 * @var array Array with the language name of each language link (i.e. the
246 * interwiki prefix) in the key, value arbitrary. Used to avoid sending
247 * duplicate language links to the ParserOutput.
249 public $mLangLinkLanguages;
252 * @var MapCacheLRU|null
255 * A cache of the current revisions of titles. Keys are $title->getPrefixedDbKey()
257 public $currentRevisionCache;
260 * @var bool|string Recursive call protection.
261 * This variable should be treated as if it were private.
263 public $mInParse = false;
265 /** @var SectionProfiler */
266 protected $mProfiler;
271 protected $mLinkRenderer;
273 /** @var MagicWordFactory */
274 private $magicWordFactory;
279 /** @var ParserFactory */
282 /** @var SpecialPageFactory */
283 private $specialPageFactory;
286 * This is called $svcOptions instead of $options like elsewhere to avoid confusion with
287 * $mOptions, which is public and widely used, and also with the local variable $options used
288 * for ParserOptions throughout this file.
290 * @var ServiceOptions
294 /** @var LinkRendererFactory */
295 private $linkRendererFactory;
297 /** @var NamespaceInfo */
300 /** @var LoggerInterface */
303 /** @var BadFileLookup */
304 private $badFileLookup;
307 * TODO Make this a const when HHVM support is dropped (T192166)
312 public static $constructorOptions = [
313 // See $wgParserConf documentation
316 // See documentation for the corresponding config options
318 'EnableScaryTranscluding',
319 'ExtraInterlanguageLinkPrefixes',
331 'TranscludeCacheExpiry',
335 * Constructing parsers directly is deprecated! Use a ParserFactory.
337 * @param ServiceOptions|null $svcOptions
338 * @param MagicWordFactory|null $magicWordFactory
339 * @param Language|null $contLang Content language
340 * @param ParserFactory|null $factory
341 * @param string|null $urlProtocols As returned from wfUrlProtocols()
342 * @param SpecialPageFactory|null $spFactory
343 * @param LinkRendererFactory|null $linkRendererFactory
344 * @param NamespaceInfo|null $nsInfo
345 * @param LoggerInterface|null $logger
346 * @param BadFileLookup|null $badFileLookup
348 public function __construct(
350 MagicWordFactory
$magicWordFactory = null,
351 Language
$contLang = null,
352 ParserFactory
$factory = null,
353 $urlProtocols = null,
354 SpecialPageFactory
$spFactory = null,
355 $linkRendererFactory = null,
358 BadFileLookup
$badFileLookup = null
360 if ( !$svcOptions ||
is_array( $svcOptions ) ) {
361 // Pre-1.34 calling convention is the first parameter is just ParserConf, the seventh is
362 // Config, and the eighth is LinkRendererFactory.
363 $this->mConf
= (array)$svcOptions;
364 if ( empty( $this->mConf
['class'] ) ) {
365 $this->mConf
['class'] = self
::class;
367 if ( empty( $this->mConf
['preprocessorClass'] ) ) {
368 $this->mConf
['preprocessorClass'] = self
::getDefaultPreprocessorClass();
370 $this->svcOptions
= new ServiceOptions( self
::$constructorOptions,
371 $this->mConf
, func_num_args() > 6
372 ?
func_get_arg( 6 ) : MediaWikiServices
::getInstance()->getMainConfig()
374 $linkRendererFactory = func_num_args() > 7 ?
func_get_arg( 7 ) : null;
375 $nsInfo = func_num_args() > 8 ?
func_get_arg( 8 ) : null;
377 // New calling convention
378 $svcOptions->assertRequiredOptions( self
::$constructorOptions );
379 // $this->mConf is public, so we'll keep those two options there as well for
380 // compatibility until it's removed
382 'class' => $svcOptions->get( 'class' ),
383 'preprocessorClass' => $svcOptions->get( 'preprocessorClass' ),
385 $this->svcOptions
= $svcOptions;
388 $this->mUrlProtocols
= $urlProtocols ??
wfUrlProtocols();
389 $this->mExtLinkBracketedRegex
= '/\[(((?i)' . $this->mUrlProtocols
. ')' .
390 self
::EXT_LINK_ADDR
.
391 self
::EXT_LINK_URL_CLASS
. '*)\p{Zs}*([^\]\\x00-\\x08\\x0a-\\x1F\\x{FFFD}]*?)\]/Su';
393 $this->magicWordFactory
= $magicWordFactory ??
394 MediaWikiServices
::getInstance()->getMagicWordFactory();
396 $this->contLang
= $contLang ?? MediaWikiServices
::getInstance()->getContentLanguage();
398 $this->factory
= $factory ?? MediaWikiServices
::getInstance()->getParserFactory();
399 $this->specialPageFactory
= $spFactory ??
400 MediaWikiServices
::getInstance()->getSpecialPageFactory();
401 $this->linkRendererFactory
= $linkRendererFactory ??
402 MediaWikiServices
::getInstance()->getLinkRendererFactory();
403 $this->nsInfo
= $nsInfo ?? MediaWikiServices
::getInstance()->getNamespaceInfo();
404 $this->logger
= $logger ?
: new NullLogger();
405 $this->badFileLookup
= $badFileLookup ??
406 MediaWikiServices
::getInstance()->getBadFileLookup();
410 * Reduce memory usage to reduce the impact of circular references
412 public function __destruct() {
413 if ( isset( $this->mLinkHolders
) ) {
414 // @phan-suppress-next-line PhanTypeObjectUnsetDeclaredProperty
415 unset( $this->mLinkHolders
);
417 // @phan-suppress-next-line PhanTypeSuspiciousNonTraversableForeach
418 foreach ( $this as $name => $value ) {
419 unset( $this->$name );
424 * Allow extensions to clean up when the parser is cloned
426 public function __clone() {
427 $this->mInParse
= false;
429 // T58226: When you create a reference "to" an object field, that
430 // makes the object field itself be a reference too (until the other
431 // reference goes out of scope). When cloning, any field that's a
432 // reference is copied as a reference in the new object. Both of these
433 // are defined PHP5 behaviors, as inconvenient as it is for us when old
434 // hooks from PHP4 days are passing fields by reference.
435 foreach ( [ 'mStripState', 'mVarCache' ] as $k ) {
436 // Make a non-reference copy of the field, then rebind the field to
437 // reference the new copy.
443 Hooks
::run( 'ParserCloned', [ $this ] );
447 * Which class should we use for the preprocessor if not otherwise specified?
450 * @deprecated since 1.34, removing configurability of preprocessor
453 public static function getDefaultPreprocessorClass() {
454 return Preprocessor_Hash
::class;
458 * Do various kinds of initialisation on the first call of the parser
460 public function firstCallInit() {
461 if ( !$this->mFirstCall
) {
464 $this->mFirstCall
= false;
466 CoreParserFunctions
::register( $this );
467 CoreTagHooks
::register( $this );
468 $this->initialiseVariables();
470 // Avoid PHP 7.1 warning from passing $this by reference
472 Hooks
::run( 'ParserFirstCallInit', [ &$parser ] );
480 public function clearState() {
481 $this->firstCallInit();
482 $this->resetOutput();
483 $this->mAutonumber
= 0;
484 $this->mIncludeCount
= [];
485 $this->mLinkHolders
= new LinkHolderArray( $this );
487 $this->mRevisionObject
= $this->mRevisionTimestamp
=
488 $this->mRevisionId
= $this->mRevisionUser
= $this->mRevisionSize
= null;
489 $this->mVarCache
= [];
491 $this->mLangLinkLanguages
= [];
492 $this->currentRevisionCache
= null;
494 $this->mStripState
= new StripState( $this );
496 # Clear these on every parse, T6549
497 $this->mTplRedirCache
= $this->mTplDomCache
= [];
499 $this->mShowToc
= true;
500 $this->mForceTocPosition
= false;
501 $this->mIncludeSizes
= [
505 $this->mPPNodeCount
= 0;
506 $this->mGeneratedPPNodeCount
= 0;
507 $this->mHighestExpansionDepth
= 0;
508 $this->mDefaultSort
= false;
509 $this->mHeadings
= [];
510 $this->mDoubleUnderscores
= [];
511 $this->mExpensiveFunctionCount
= 0;
514 if ( isset( $this->mPreprocessor
) && $this->mPreprocessor
->parser
!== $this ) {
515 $this->mPreprocessor
= null;
518 $this->mProfiler
= new SectionProfiler();
520 // Avoid PHP 7.1 warning from passing $this by reference
522 Hooks
::run( 'ParserClearState', [ &$parser ] );
526 * Reset the ParserOutput
528 public function resetOutput() {
529 $this->mOutput
= new ParserOutput
;
530 $this->mOptions
->registerWatcher( [ $this->mOutput
, 'recordOption' ] );
534 * Convert wikitext to HTML
535 * Do not call this function recursively.
537 * @param string $text Text we want to parse
538 * @param-taint $text escapes_htmlnoent
539 * @param Title $title
540 * @param ParserOptions $options
541 * @param bool $linestart
542 * @param bool $clearState
543 * @param int|null $revid ID of the revision being rendered. This is used to render
544 * REVISION* magic words. 0 means that any current revision will be used. Null means
545 * that {{REVISIONID}}/{{REVISIONUSER}} will be empty and {{REVISIONTIMESTAMP}} will
546 * use the current timestamp.
547 * @return ParserOutput A ParserOutput
548 * @return-taint escaped
550 public function parse(
551 $text, Title
$title, ParserOptions
$options,
552 $linestart = true, $clearState = true, $revid = null
555 // We use U+007F DELETE to construct strip markers, so we have to make
556 // sure that this character does not occur in the input text.
557 $text = strtr( $text, "\x7f", "?" );
558 $magicScopeVariable = $this->lock();
560 // Strip U+0000 NULL (T159174)
561 $text = str_replace( "\000", '', $text );
563 $this->startParse( $title, $options, self
::OT_HTML
, $clearState );
565 $this->currentRevisionCache
= null;
566 $this->mInputSize
= strlen( $text );
567 if ( $this->mOptions
->getEnableLimitReport() ) {
568 $this->mOutput
->resetParseStartTime();
571 $oldRevisionId = $this->mRevisionId
;
572 $oldRevisionObject = $this->mRevisionObject
;
573 $oldRevisionTimestamp = $this->mRevisionTimestamp
;
574 $oldRevisionUser = $this->mRevisionUser
;
575 $oldRevisionSize = $this->mRevisionSize
;
576 if ( $revid !== null ) {
577 $this->mRevisionId
= $revid;
578 $this->mRevisionObject
= null;
579 $this->mRevisionTimestamp
= null;
580 $this->mRevisionUser
= null;
581 $this->mRevisionSize
= null;
584 // Avoid PHP 7.1 warning from passing $this by reference
586 Hooks
::run( 'ParserBeforeStrip', [ &$parser, &$text, &$this->mStripState
] );
588 Hooks
::run( 'ParserAfterStrip', [ &$parser, &$text, &$this->mStripState
] );
589 $text = $this->internalParse( $text );
590 Hooks
::run( 'ParserAfterParse', [ &$parser, &$text, &$this->mStripState
] );
592 $text = $this->internalParseHalfParsed( $text, true, $linestart );
595 * A converted title will be provided in the output object if title and
596 * content conversion are enabled, the article text does not contain
597 * a conversion-suppressing double-underscore tag, and no
598 * {{DISPLAYTITLE:...}} is present. DISPLAYTITLE takes precedence over
599 * automatic link conversion.
601 if ( !( $options->getDisableTitleConversion()
602 ||
isset( $this->mDoubleUnderscores
['nocontentconvert'] )
603 ||
isset( $this->mDoubleUnderscores
['notitleconvert'] )
604 ||
$this->mOutput
->getDisplayTitle() !== false )
606 $convruletitle = $this->getTargetLanguage()->getConvRuleTitle();
607 if ( $convruletitle ) {
608 $this->mOutput
->setTitleText( $convruletitle );
610 $titleText = $this->getTargetLanguage()->convertTitle( $title );
611 $this->mOutput
->setTitleText( $titleText );
615 # Compute runtime adaptive expiry if set
616 $this->mOutput
->finalizeAdaptiveCacheExpiry();
618 # Warn if too many heavyweight parser functions were used
619 if ( $this->mExpensiveFunctionCount
> $this->mOptions
->getExpensiveParserFunctionLimit() ) {
620 $this->limitationWarn( 'expensive-parserfunction',
621 $this->mExpensiveFunctionCount
,
622 $this->mOptions
->getExpensiveParserFunctionLimit()
626 # Information on limits, for the benefit of users who try to skirt them
627 if ( $this->mOptions
->getEnableLimitReport() ) {
628 $text .= $this->makeLimitReport();
631 # Wrap non-interface parser output in a <div> so it can be targeted
633 $class = $this->mOptions
->getWrapOutputClass();
634 if ( $class !== false && !$this->mOptions
->getInterfaceMessage() ) {
635 $this->mOutput
->addWrapperDivClass( $class );
638 $this->mOutput
->setText( $text );
640 $this->mRevisionId
= $oldRevisionId;
641 $this->mRevisionObject
= $oldRevisionObject;
642 $this->mRevisionTimestamp
= $oldRevisionTimestamp;
643 $this->mRevisionUser
= $oldRevisionUser;
644 $this->mRevisionSize
= $oldRevisionSize;
645 $this->mInputSize
= false;
646 $this->currentRevisionCache
= null;
648 return $this->mOutput
;
652 * Set the limit report data in the current ParserOutput, and return the
653 * limit report HTML comment.
657 protected function makeLimitReport() {
658 $maxIncludeSize = $this->mOptions
->getMaxIncludeSize();
660 $cpuTime = $this->mOutput
->getTimeSinceStart( 'cpu' );
661 if ( $cpuTime !== null ) {
662 $this->mOutput
->setLimitReportData( 'limitreport-cputime',
663 sprintf( "%.3f", $cpuTime )
667 $wallTime = $this->mOutput
->getTimeSinceStart( 'wall' );
668 $this->mOutput
->setLimitReportData( 'limitreport-walltime',
669 sprintf( "%.3f", $wallTime )
672 $this->mOutput
->setLimitReportData( 'limitreport-ppvisitednodes',
673 [ $this->mPPNodeCount
, $this->mOptions
->getMaxPPNodeCount() ]
675 $this->mOutput
->setLimitReportData( 'limitreport-ppgeneratednodes',
676 [ $this->mGeneratedPPNodeCount
, $this->mOptions
->getMaxGeneratedPPNodeCount() ]
678 $this->mOutput
->setLimitReportData( 'limitreport-postexpandincludesize',
679 [ $this->mIncludeSizes
['post-expand'], $maxIncludeSize ]
681 $this->mOutput
->setLimitReportData( 'limitreport-templateargumentsize',
682 [ $this->mIncludeSizes
['arg'], $maxIncludeSize ]
684 $this->mOutput
->setLimitReportData( 'limitreport-expansiondepth',
685 [ $this->mHighestExpansionDepth
, $this->mOptions
->getMaxPPExpandDepth() ]
687 $this->mOutput
->setLimitReportData( 'limitreport-expensivefunctioncount',
688 [ $this->mExpensiveFunctionCount
, $this->mOptions
->getExpensiveParserFunctionLimit() ]
691 foreach ( $this->mStripState
->getLimitReport() as list( $key, $value ) ) {
692 $this->mOutput
->setLimitReportData( $key, $value );
695 Hooks
::run( 'ParserLimitReportPrepare', [ $this, $this->mOutput
] );
697 $limitReport = "NewPP limit report\n";
698 if ( $this->svcOptions
->get( 'ShowHostnames' ) ) {
699 $limitReport .= 'Parsed by ' . wfHostname() . "\n";
701 $limitReport .= 'Cached time: ' . $this->mOutput
->getCacheTime() . "\n";
702 $limitReport .= 'Cache expiry: ' . $this->mOutput
->getCacheExpiry() . "\n";
703 $limitReport .= 'Dynamic content: ' .
704 ( $this->mOutput
->hasDynamicContent() ?
'true' : 'false' ) .
706 $limitReport .= 'Complications: [' . implode( ', ', $this->mOutput
->getAllFlags() ) . "]\n";
708 foreach ( $this->mOutput
->getLimitReportData() as $key => $value ) {
709 if ( Hooks
::run( 'ParserLimitReportFormat',
710 [ $key, &$value, &$limitReport, false, false ]
712 $keyMsg = wfMessage( $key )->inLanguage( 'en' )->useDatabase( false );
713 $valueMsg = wfMessage( [ "$key-value-text", "$key-value" ] )
714 ->inLanguage( 'en' )->useDatabase( false );
715 if ( !$valueMsg->exists() ) {
716 $valueMsg = new RawMessage( '$1' );
718 if ( !$keyMsg->isDisabled() && !$valueMsg->isDisabled() ) {
719 $valueMsg->params( $value );
720 $limitReport .= "{$keyMsg->text()}: {$valueMsg->text()}\n";
724 // Since we're not really outputting HTML, decode the entities and
725 // then re-encode the things that need hiding inside HTML comments.
726 $limitReport = htmlspecialchars_decode( $limitReport );
728 // Sanitize for comment. Note '‐' in the replacement is U+2010,
729 // which looks much like the problematic '-'.
730 $limitReport = str_replace( [ '-', '&' ], [ '‐', '&' ], $limitReport );
731 $text = "\n<!-- \n$limitReport-->\n";
733 // Add on template profiling data in human/machine readable way
734 $dataByFunc = $this->mProfiler
->getFunctionStats();
735 uasort( $dataByFunc, function ( $a, $b ) {
736 return $b['real'] <=> $a['real']; // descending order
739 foreach ( array_slice( $dataByFunc, 0, 10 ) as $item ) {
740 $profileReport[] = sprintf( "%6.2f%% %8.3f %6d %s",
741 $item['%real'], $item['real'], $item['calls'],
742 htmlspecialchars( $item['name'] ) );
744 $text .= "<!--\nTransclusion expansion time report (%,ms,calls,template)\n";
745 $text .= implode( "\n", $profileReport ) . "\n-->\n";
747 $this->mOutput
->setLimitReportData( 'limitreport-timingprofile', $profileReport );
749 // Add other cache related metadata
750 if ( $this->svcOptions
->get( 'ShowHostnames' ) ) {
751 $this->mOutput
->setLimitReportData( 'cachereport-origin', wfHostname() );
753 $this->mOutput
->setLimitReportData( 'cachereport-timestamp',
754 $this->mOutput
->getCacheTime() );
755 $this->mOutput
->setLimitReportData( 'cachereport-ttl',
756 $this->mOutput
->getCacheExpiry() );
757 $this->mOutput
->setLimitReportData( 'cachereport-transientcontent',
758 $this->mOutput
->hasDynamicContent() );
760 if ( $this->mGeneratedPPNodeCount
> $this->mOptions
->getMaxGeneratedPPNodeCount() / 10 ) {
761 wfDebugLog( 'generated-pp-node-count', $this->mGeneratedPPNodeCount
. ' ' .
762 $this->mTitle
->getPrefixedDBkey() );
768 * Half-parse wikitext to half-parsed HTML. This recursive parser entry point
769 * can be called from an extension tag hook.
771 * The output of this function IS NOT SAFE PARSED HTML; it is "half-parsed"
772 * instead, which means that lists and links have not been fully parsed yet,
773 * and strip markers are still present.
775 * Use recursiveTagParseFully() to fully parse wikitext to output-safe HTML.
777 * Use this function if you're a parser tag hook and you want to parse
778 * wikitext before or after applying additional transformations, and you
779 * intend to *return the result as hook output*, which will cause it to go
780 * through the rest of parsing process automatically.
782 * If $frame is not provided, then template variables (e.g., {{{1}}}) within
783 * $text are not expanded
785 * @param string $text Text extension wants to have parsed
786 * @param-taint $text escapes_htmlnoent
787 * @param bool|PPFrame $frame The frame to use for expanding any template variables
788 * @return string UNSAFE half-parsed HTML
789 * @return-taint escaped
791 public function recursiveTagParse( $text, $frame = false ) {
792 // Avoid PHP 7.1 warning from passing $this by reference
794 Hooks
::run( 'ParserBeforeStrip', [ &$parser, &$text, &$this->mStripState
] );
795 Hooks
::run( 'ParserAfterStrip', [ &$parser, &$text, &$this->mStripState
] );
796 $text = $this->internalParse( $text, false, $frame );
801 * Fully parse wikitext to fully parsed HTML. This recursive parser entry
802 * point can be called from an extension tag hook.
804 * The output of this function is fully-parsed HTML that is safe for output.
805 * If you're a parser tag hook, you might want to use recursiveTagParse()
808 * If $frame is not provided, then template variables (e.g., {{{1}}}) within
809 * $text are not expanded
813 * @param string $text Text extension wants to have parsed
814 * @param-taint $text escapes_htmlnoent
815 * @param bool|PPFrame $frame The frame to use for expanding any template variables
816 * @return string Fully parsed HTML
817 * @return-taint escaped
819 public function recursiveTagParseFully( $text, $frame = false ) {
820 $text = $this->recursiveTagParse( $text, $frame );
821 $text = $this->internalParseHalfParsed( $text, false );
826 * Expand templates and variables in the text, producing valid, static wikitext.
827 * Also removes comments.
828 * Do not call this function recursively.
829 * @param string $text
830 * @param Title|null $title
831 * @param ParserOptions $options
832 * @param int|null $revid
833 * @param bool|PPFrame $frame
834 * @return mixed|string
836 public function preprocess( $text, Title
$title = null,
837 ParserOptions
$options, $revid = null, $frame = false
839 $magicScopeVariable = $this->lock();
840 $this->startParse( $title, $options, self
::OT_PREPROCESS
, true );
841 if ( $revid !== null ) {
842 $this->mRevisionId
= $revid;
844 // Avoid PHP 7.1 warning from passing $this by reference
846 Hooks
::run( 'ParserBeforeStrip', [ &$parser, &$text, &$this->mStripState
] );
847 Hooks
::run( 'ParserAfterStrip', [ &$parser, &$text, &$this->mStripState
] );
848 $text = $this->replaceVariables( $text, $frame );
849 $text = $this->mStripState
->unstripBoth( $text );
854 * Recursive parser entry point that can be called from an extension tag
857 * @param string $text Text to be expanded
858 * @param bool|PPFrame $frame The frame to use for expanding any template variables
862 public function recursivePreprocess( $text, $frame = false ) {
863 $text = $this->replaceVariables( $text, $frame );
864 $text = $this->mStripState
->unstripBoth( $text );
869 * Process the wikitext for the "?preload=" feature. (T7210)
871 * "<noinclude>", "<includeonly>" etc. are parsed as for template
872 * transclusion, comments, templates, arguments, tags hooks and parser
873 * functions are untouched.
875 * @param string $text
876 * @param Title $title
877 * @param ParserOptions $options
878 * @param array $params
881 public function getPreloadText( $text, Title
$title, ParserOptions
$options, $params = [] ) {
882 $msg = new RawMessage( $text );
883 $text = $msg->params( $params )->plain();
885 # Parser (re)initialisation
886 $magicScopeVariable = $this->lock();
887 $this->startParse( $title, $options, self
::OT_PLAIN
, true );
889 $flags = PPFrame
::NO_ARGS | PPFrame
::NO_TEMPLATES
;
890 $dom = $this->preprocessToDom( $text, self
::PTD_FOR_INCLUSION
);
891 $text = $this->getPreprocessor()->newFrame()->expand( $dom, $flags );
892 $text = $this->mStripState
->unstripBoth( $text );
897 * Set the current user.
898 * Should only be used when doing pre-save transform.
900 * @param User|null $user User object or null (to reset)
902 public function setUser( $user ) {
903 $this->mUser
= $user;
907 * Set the context title
911 public function setTitle( $t ) {
913 $t = Title
::newFromText( 'NO TITLE' );
916 if ( $t->hasFragment() ) {
917 # Strip the fragment to avoid various odd effects
918 $this->mTitle
= $t->createFragmentTarget( '' );
925 * Accessor for the Title object
929 public function getTitle() {
930 return $this->mTitle
;
934 * Accessor/mutator for the Title object
936 * @param Title|null $x Title object or null to just get the current one
939 public function Title( $x = null ) {
940 return wfSetVar( $this->mTitle
, $x );
944 * Set the output type
946 * @param int $ot New value
948 public function setOutputType( $ot ) {
949 $this->mOutputType
= $ot;
952 'html' => $ot == self
::OT_HTML
,
953 'wiki' => $ot == self
::OT_WIKI
,
954 'pre' => $ot == self
::OT_PREPROCESS
,
955 'plain' => $ot == self
::OT_PLAIN
,
960 * Accessor/mutator for the output type
962 * @param int|null $x New value or null to just get the current one
965 public function OutputType( $x = null ) {
966 return wfSetVar( $this->mOutputType
, $x );
970 * Get the ParserOutput object
972 * @return ParserOutput
974 public function getOutput() {
975 return $this->mOutput
;
979 * Get the ParserOptions object
981 * @return ParserOptions
983 public function getOptions() {
984 return $this->mOptions
;
988 * Accessor/mutator for the ParserOptions object
990 * @param ParserOptions|null $x New value or null to just get the current one
991 * @return ParserOptions Current ParserOptions object
993 public function Options( $x = null ) {
994 return wfSetVar( $this->mOptions
, $x );
1000 public function nextLinkID() {
1001 return $this->mLinkID++
;
1007 public function setLinkID( $id ) {
1008 $this->mLinkID
= $id;
1012 * Get a language object for use in parser functions such as {{FORMATNUM:}}
1015 public function getFunctionLang() {
1016 return $this->getTargetLanguage();
1020 * Get the target language for the content being parsed. This is usually the
1021 * language that the content is in.
1025 * @throws MWException
1028 public function getTargetLanguage() {
1029 $target = $this->mOptions
->getTargetLanguage();
1031 if ( $target !== null ) {
1033 } elseif ( $this->mOptions
->getInterfaceMessage() ) {
1034 return $this->mOptions
->getUserLangObj();
1035 } elseif ( is_null( $this->mTitle
) ) {
1036 throw new MWException( __METHOD__
. ': $this->mTitle is null' );
1039 return $this->mTitle
->getPageLanguage();
1043 * Get the language object for language conversion
1044 * @deprecated since 1.32, just use getTargetLanguage()
1045 * @return Language|null
1047 public function getConverterLanguage() {
1048 return $this->getTargetLanguage();
1052 * Get a User object either from $this->mUser, if set, or from the
1053 * ParserOptions object otherwise
1057 public function getUser() {
1058 if ( !is_null( $this->mUser
) ) {
1059 return $this->mUser
;
1061 return $this->mOptions
->getUser();
1065 * Get a preprocessor object
1067 * @return Preprocessor
1069 public function getPreprocessor() {
1070 if ( !isset( $this->mPreprocessor
) ) {
1071 $class = $this->svcOptions
->get( 'preprocessorClass' );
1072 $this->mPreprocessor
= new $class( $this );
1074 return $this->mPreprocessor
;
1078 * Get a LinkRenderer instance to make links with
1081 * @return LinkRenderer
1083 public function getLinkRenderer() {
1084 // XXX We make the LinkRenderer with current options and then cache it forever
1085 if ( !$this->mLinkRenderer
) {
1086 $this->mLinkRenderer
= $this->linkRendererFactory
->create();
1087 $this->mLinkRenderer
->setStubThreshold(
1088 $this->getOptions()->getStubThreshold()
1092 return $this->mLinkRenderer
;
1096 * Get the MagicWordFactory that this Parser is using
1099 * @return MagicWordFactory
1101 public function getMagicWordFactory() {
1102 return $this->magicWordFactory
;
1106 * Get the content language that this Parser is using
1111 public function getContentLanguage() {
1112 return $this->contLang
;
1116 * Replaces all occurrences of HTML-style comments and the given tags
1117 * in the text with a random marker and returns the next text. The output
1118 * parameter $matches will be an associative array filled with data in
1125 * [ 'param' => 'x' ],
1126 * '<element param="x">tag content</element>' ]
1129 * @param array $elements List of element names. Comments are always extracted.
1130 * @param string $text Source text string.
1131 * @param array &$matches Out parameter, Array: extracted tags
1132 * @return string Stripped text
1134 public static function extractTagsAndParams( $elements, $text, &$matches ) {
1139 $taglist = implode( '|', $elements );
1140 $start = "/<($taglist)(\\s+[^>]*?|\\s*?)(\/?>)|<(!--)/i";
1142 while ( $text != '' ) {
1143 $p = preg_split( $start, $text, 2, PREG_SPLIT_DELIM_CAPTURE
);
1145 if ( count( $p ) < 5 ) {
1148 if ( count( $p ) > 5 ) {
1156 list( , $element, $attributes, $close, $inside ) = $p;
1159 $marker = self
::MARKER_PREFIX
. "-$element-" . sprintf( '%08X', $n++
) . self
::MARKER_SUFFIX
;
1160 $stripped .= $marker;
1162 if ( $close === '/>' ) {
1163 # Empty element tag, <tag />
1168 if ( $element === '!--' ) {
1171 $end = "/(<\\/$element\\s*>)/i";
1173 $q = preg_split( $end, $inside, 2, PREG_SPLIT_DELIM_CAPTURE
);
1175 if ( count( $q ) < 3 ) {
1176 # No end tag -- let it run out to the end of the text.
1180 list( , $tail, $text ) = $q;
1184 $matches[$marker] = [ $element,
1186 Sanitizer
::decodeTagAttributes( $attributes ),
1187 "<$element$attributes$close$content$tail" ];
1193 * Get a list of strippable XML-like elements
1197 public function getStripList() {
1198 return $this->mStripList
;
1202 * Get the StripState
1204 * @return StripState
1206 public function getStripState() {
1207 return $this->mStripState
;
1211 * Add an item to the strip state
1212 * Returns the unique tag which must be inserted into the stripped text
1213 * The tag will be replaced with the original text in unstrip()
1215 * @param string $text
1219 public function insertStripItem( $text ) {
1220 $marker = self
::MARKER_PREFIX
. "-item-{$this->mMarkerIndex}-" . self
::MARKER_SUFFIX
;
1221 $this->mMarkerIndex++
;
1222 $this->mStripState
->addGeneral( $marker, $text );
1227 * parse the wiki syntax used to render tables
1230 * @param string $text
1233 public function doTableStuff( $text ) {
1234 $lines = StringUtils
::explode( "\n", $text );
1236 $td_history = []; # Is currently a td tag open?
1237 $last_tag_history = []; # Save history of last lag activated (td, th or caption)
1238 $tr_history = []; # Is currently a tr tag open?
1239 $tr_attributes = []; # history of tr attributes
1240 $has_opened_tr = []; # Did this table open a <tr> element?
1241 $indent_level = 0; # indent level of the table
1243 foreach ( $lines as $outLine ) {
1244 $line = trim( $outLine );
1246 if ( $line === '' ) { # empty line, go to next line
1247 $out .= $outLine . "\n";
1251 $first_character = $line[0];
1252 $first_two = substr( $line, 0, 2 );
1255 if ( preg_match( '/^(:*)\s*\{\|(.*)$/', $line, $matches ) ) {
1256 # First check if we are starting a new table
1257 $indent_level = strlen( $matches[1] );
1259 $attributes = $this->mStripState
->unstripBoth( $matches[2] );
1260 $attributes = Sanitizer
::fixTagAttributes( $attributes, 'table' );
1262 $outLine = str_repeat( '<dl><dd>', $indent_level ) . "<table{$attributes}>";
1263 array_push( $td_history, false );
1264 array_push( $last_tag_history, '' );
1265 array_push( $tr_history, false );
1266 array_push( $tr_attributes, '' );
1267 array_push( $has_opened_tr, false );
1268 } elseif ( count( $td_history ) == 0 ) {
1269 # Don't do any of the following
1270 $out .= $outLine . "\n";
1272 } elseif ( $first_two === '|}' ) {
1273 # We are ending a table
1274 $line = '</table>' . substr( $line, 2 );
1275 $last_tag = array_pop( $last_tag_history );
1277 if ( !array_pop( $has_opened_tr ) ) {
1278 $line = "<tr><td></td></tr>{$line}";
1281 if ( array_pop( $tr_history ) ) {
1282 $line = "</tr>{$line}";
1285 if ( array_pop( $td_history ) ) {
1286 $line = "</{$last_tag}>{$line}";
1288 array_pop( $tr_attributes );
1289 if ( $indent_level > 0 ) {
1290 $outLine = rtrim( $line ) . str_repeat( '</dd></dl>', $indent_level );
1294 } elseif ( $first_two === '|-' ) {
1295 # Now we have a table row
1296 $line = preg_replace( '#^\|-+#', '', $line );
1298 # Whats after the tag is now only attributes
1299 $attributes = $this->mStripState
->unstripBoth( $line );
1300 $attributes = Sanitizer
::fixTagAttributes( $attributes, 'tr' );
1301 array_pop( $tr_attributes );
1302 array_push( $tr_attributes, $attributes );
1305 $last_tag = array_pop( $last_tag_history );
1306 array_pop( $has_opened_tr );
1307 array_push( $has_opened_tr, true );
1309 if ( array_pop( $tr_history ) ) {
1313 if ( array_pop( $td_history ) ) {
1314 $line = "</{$last_tag}>{$line}";
1318 array_push( $tr_history, false );
1319 array_push( $td_history, false );
1320 array_push( $last_tag_history, '' );
1321 } elseif ( $first_character === '|'
1322 ||
$first_character === '!'
1323 ||
$first_two === '|+'
1325 # This might be cell elements, td, th or captions
1326 if ( $first_two === '|+' ) {
1327 $first_character = '+';
1328 $line = substr( $line, 2 );
1330 $line = substr( $line, 1 );
1333 // Implies both are valid for table headings.
1334 if ( $first_character === '!' ) {
1335 $line = StringUtils
::replaceMarkup( '!!', '||', $line );
1338 # Split up multiple cells on the same line.
1339 # FIXME : This can result in improper nesting of tags processed
1340 # by earlier parser steps.
1341 $cells = explode( '||', $line );
1345 # Loop through each table cell
1346 foreach ( $cells as $cell ) {
1348 if ( $first_character !== '+' ) {
1349 $tr_after = array_pop( $tr_attributes );
1350 if ( !array_pop( $tr_history ) ) {
1351 $previous = "<tr{$tr_after}>\n";
1353 array_push( $tr_history, true );
1354 array_push( $tr_attributes, '' );
1355 array_pop( $has_opened_tr );
1356 array_push( $has_opened_tr, true );
1359 $last_tag = array_pop( $last_tag_history );
1361 if ( array_pop( $td_history ) ) {
1362 $previous = "</{$last_tag}>\n{$previous}";
1365 if ( $first_character === '|' ) {
1367 } elseif ( $first_character === '!' ) {
1369 } elseif ( $first_character === '+' ) {
1370 $last_tag = 'caption';
1375 array_push( $last_tag_history, $last_tag );
1377 # A cell could contain both parameters and data
1378 $cell_data = explode( '|', $cell, 2 );
1380 # T2553: Note that a '|' inside an invalid link should not
1381 # be mistaken as delimiting cell parameters
1382 # Bug T153140: Neither should language converter markup.
1383 if ( preg_match( '/\[\[|-\{/', $cell_data[0] ) === 1 ) {
1384 $cell = "{$previous}<{$last_tag}>" . trim( $cell );
1385 } elseif ( count( $cell_data ) == 1 ) {
1386 // Whitespace in cells is trimmed
1387 $cell = "{$previous}<{$last_tag}>" . trim( $cell_data[0] );
1389 $attributes = $this->mStripState
->unstripBoth( $cell_data[0] );
1390 $attributes = Sanitizer
::fixTagAttributes( $attributes, $last_tag );
1391 // Whitespace in cells is trimmed
1392 $cell = "{$previous}<{$last_tag}{$attributes}>" . trim( $cell_data[1] );
1396 array_push( $td_history, true );
1399 $out .= $outLine . "\n";
1402 # Closing open td, tr && table
1403 while ( count( $td_history ) > 0 ) {
1404 if ( array_pop( $td_history ) ) {
1407 if ( array_pop( $tr_history ) ) {
1410 if ( !array_pop( $has_opened_tr ) ) {
1411 $out .= "<tr><td></td></tr>\n";
1414 $out .= "</table>\n";
1417 # Remove trailing line-ending (b/c)
1418 if ( substr( $out, -1 ) === "\n" ) {
1419 $out = substr( $out, 0, -1 );
1422 # special case: don't return empty table
1423 if ( $out === "<table>\n<tr><td></td></tr>\n</table>" ) {
1431 * Helper function for parse() that transforms wiki markup into half-parsed
1432 * HTML. Only called for $mOutputType == self::OT_HTML.
1436 * @param string $text The text to parse
1437 * @param-taint $text escapes_html
1438 * @param bool $isMain Whether this is being called from the main parse() function
1439 * @param PPFrame|bool $frame A pre-processor frame
1443 public function internalParse( $text, $isMain = true, $frame = false ) {
1446 // Avoid PHP 7.1 warning from passing $this by reference
1449 # Hook to suspend the parser in this state
1450 if ( !Hooks
::run( 'ParserBeforeInternalParse', [ &$parser, &$text, &$this->mStripState
] ) ) {
1454 # if $frame is provided, then use $frame for replacing any variables
1456 # use frame depth to infer how include/noinclude tags should be handled
1457 # depth=0 means this is the top-level document; otherwise it's an included document
1458 if ( !$frame->depth
) {
1461 $flag = self
::PTD_FOR_INCLUSION
;
1463 $dom = $this->preprocessToDom( $text, $flag );
1464 $text = $frame->expand( $dom );
1466 # if $frame is not provided, then use old-style replaceVariables
1467 $text = $this->replaceVariables( $text );
1470 Hooks
::run( 'InternalParseBeforeSanitize', [ &$parser, &$text, &$this->mStripState
] );
1471 $text = Sanitizer
::removeHTMLtags(
1473 [ $this, 'attributeStripCallback' ],
1475 array_keys( $this->mTransparentTagHooks
),
1477 [ $this, 'addTrackingCategory' ]
1479 Hooks
::run( 'InternalParseBeforeLinks', [ &$parser, &$text, &$this->mStripState
] );
1481 # Tables need to come after variable replacement for things to work
1482 # properly; putting them before other transformations should keep
1483 # exciting things like link expansions from showing up in surprising
1485 $text = $this->doTableStuff( $text );
1487 $text = preg_replace( '/(^|\n)-----*/', '\\1<hr />', $text );
1489 $text = $this->doDoubleUnderscore( $text );
1491 $text = $this->doHeadings( $text );
1492 $text = $this->replaceInternalLinks( $text );
1493 $text = $this->doAllQuotes( $text );
1494 $text = $this->replaceExternalLinks( $text );
1496 # replaceInternalLinks may sometimes leave behind
1497 # absolute URLs, which have to be masked to hide them from replaceExternalLinks
1498 $text = str_replace( self
::MARKER_PREFIX
. 'NOPARSE', '', $text );
1500 $text = $this->doMagicLinks( $text );
1501 $text = $this->formatHeadings( $text, $origText, $isMain );
1507 * Helper function for parse() that transforms half-parsed HTML into fully
1510 * @param string $text
1511 * @param bool $isMain
1512 * @param bool $linestart
1515 private function internalParseHalfParsed( $text, $isMain = true, $linestart = true ) {
1516 $text = $this->mStripState
->unstripGeneral( $text );
1518 // Avoid PHP 7.1 warning from passing $this by reference
1522 Hooks
::run( 'ParserAfterUnstrip', [ &$parser, &$text ] );
1525 # Clean up special characters, only run once, next-to-last before doBlockLevels
1526 $text = Sanitizer
::armorFrenchSpaces( $text );
1528 $text = $this->doBlockLevels( $text, $linestart );
1530 $this->replaceLinkHolders( $text );
1533 * The input doesn't get language converted if
1535 * b) Content isn't converted
1536 * c) It's a conversion table
1537 * d) it is an interface message (which is in the user language)
1539 if ( !( $this->mOptions
->getDisableContentConversion()
1540 ||
isset( $this->mDoubleUnderscores
['nocontentconvert'] ) )
1541 && !$this->mOptions
->getInterfaceMessage()
1543 # The position of the convert() call should not be changed. it
1544 # assumes that the links are all replaced and the only thing left
1545 # is the <nowiki> mark.
1546 $text = $this->getTargetLanguage()->convert( $text );
1549 $text = $this->mStripState
->unstripNoWiki( $text );
1552 Hooks
::run( 'ParserBeforeTidy', [ &$parser, &$text ] );
1555 $text = $this->replaceTransparentTags( $text );
1556 $text = $this->mStripState
->unstripGeneral( $text );
1558 $text = Sanitizer
::normalizeCharReferences( $text );
1560 if ( MWTidy
::isEnabled() ) {
1561 if ( $this->mOptions
->getTidy() ) {
1562 $text = MWTidy
::tidy( $text );
1565 # attempt to sanitize at least some nesting problems
1566 # (T4702 and quite a few others)
1567 # This code path is buggy and deprecated!
1568 wfDeprecated( 'disabling tidy', '1.33' );
1570 # ''Something [http://www.cool.com cool''] -->
1571 # <i>Something</i><a href="http://www.cool.com"..><i>cool></i></a>
1572 '/(<([bi])>)(<([bi])>)?([^<]*)(<\/?a[^<]*>)([^<]*)(<\/\\4>)?(<\/\\2>)/' =>
1573 '\\1\\3\\5\\8\\9\\6\\1\\3\\7\\8\\9',
1574 # fix up an anchor inside another anchor, only
1575 # at least for a single single nested link (T5695)
1576 '/(<a[^>]+>)([^<]*)(<a[^>]+>[^<]*)<\/a>(.*)<\/a>/' =>
1577 '\\1\\2</a>\\3</a>\\1\\4</a>',
1578 # fix div inside inline elements- doBlockLevels won't wrap a line which
1579 # contains a div, so fix it up here; replace
1580 # div with escaped text
1581 '/(<([aib]) [^>]+>)([^<]*)(<div([^>]*)>)(.*)(<\/div>)([^<]*)(<\/\\2>)/' =>
1582 '\\1\\3<div\\5>\\6</div>\\8\\9',
1583 # remove empty italic or bold tag pairs, some
1584 # introduced by rules above
1585 '/<([bi])><\/\\1>/' => '',
1588 $text = preg_replace(
1589 array_keys( $tidyregs ),
1590 array_values( $tidyregs ),
1595 Hooks
::run( 'ParserAfterTidy', [ &$parser, &$text ] );
1602 * Replace special strings like "ISBN xxx" and "RFC xxx" with
1603 * magic external links.
1608 * @param string $text
1612 public function doMagicLinks( $text ) {
1613 $prots = wfUrlProtocolsWithoutProtRel();
1614 $urlChar = self
::EXT_LINK_URL_CLASS
;
1615 $addr = self
::EXT_LINK_ADDR
;
1616 $space = self
::SPACE_NOT_NL
; # non-newline space
1617 $spdash = "(?:-|$space)"; # a dash or a non-newline space
1618 $spaces = "$space++"; # possessive match of 1 or more spaces
1619 $text = preg_replace_callback(
1621 (<a[ \t\r\n>].*?</a>) | # m[1]: Skip link text
1622 (<.*?>) | # m[2]: Skip stuff inside HTML elements' . "
1623 (\b # m[3]: Free external links
1625 ($addr$urlChar*) # m[4]: Post-protocol path
1627 \b(?:RFC|PMID) $spaces # m[5]: RFC or PMID, capture number
1629 \bISBN $spaces ( # m[6]: ISBN, capture number
1630 (?: 97[89] $spdash? )? # optional 13-digit ISBN prefix
1631 (?: [0-9] $spdash? ){9} # 9 digits with opt. delimiters
1632 [0-9Xx] # check digit
1634 )!xu", [ $this, 'magicLinkCallback' ], $text );
1639 * @throws MWException
1641 * @return string HTML
1643 public function magicLinkCallback( $m ) {
1644 if ( isset( $m[1] ) && $m[1] !== '' ) {
1647 } elseif ( isset( $m[2] ) && $m[2] !== '' ) {
1650 } elseif ( isset( $m[3] ) && $m[3] !== '' ) {
1651 # Free external link
1652 return $this->makeFreeExternalLink( $m[0], strlen( $m[4] ) );
1653 } elseif ( isset( $m[5] ) && $m[5] !== '' ) {
1655 if ( substr( $m[0], 0, 3 ) === 'RFC' ) {
1656 if ( !$this->mOptions
->getMagicRFCLinks() ) {
1661 $cssClass = 'mw-magiclink-rfc';
1662 $trackingCat = 'magiclink-tracking-rfc';
1664 } elseif ( substr( $m[0], 0, 4 ) === 'PMID' ) {
1665 if ( !$this->mOptions
->getMagicPMIDLinks() ) {
1669 $urlmsg = 'pubmedurl';
1670 $cssClass = 'mw-magiclink-pmid';
1671 $trackingCat = 'magiclink-tracking-pmid';
1674 throw new MWException( __METHOD__
. ': unrecognised match type "' .
1675 substr( $m[0], 0, 20 ) . '"' );
1677 $url = wfMessage( $urlmsg, $id )->inContentLanguage()->text();
1678 $this->addTrackingCategory( $trackingCat );
1679 return Linker
::makeExternalLink( $url, "{$keyword} {$id}", true, $cssClass, [], $this->mTitle
);
1680 } elseif ( isset( $m[6] ) && $m[6] !== ''
1681 && $this->mOptions
->getMagicISBNLinks()
1685 $space = self
::SPACE_NOT_NL
; # non-newline space
1686 $isbn = preg_replace( "/$space/", ' ', $isbn );
1687 $num = strtr( $isbn, [
1692 $this->addTrackingCategory( 'magiclink-tracking-isbn' );
1693 return $this->getLinkRenderer()->makeKnownLink(
1694 SpecialPage
::getTitleFor( 'Booksources', $num ),
1697 'class' => 'internal mw-magiclink-isbn',
1698 'title' => false // suppress title attribute
1707 * Make a free external link, given a user-supplied URL
1709 * @param string $url
1710 * @param int $numPostProto
1711 * The number of characters after the protocol.
1712 * @return string HTML
1715 public function makeFreeExternalLink( $url, $numPostProto ) {
1718 # The characters '<' and '>' (which were escaped by
1719 # removeHTMLtags()) should not be included in
1720 # URLs, per RFC 2396.
1721 # Make terminate a URL as well (bug T84937)
1724 '/&(lt|gt|nbsp|#x0*(3[CcEe]|[Aa]0)|#0*(60|62|160));/',
1729 $trail = substr( $url, $m2[0][1] ) . $trail;
1730 $url = substr( $url, 0, $m2[0][1] );
1733 # Move trailing punctuation to $trail
1735 # If there is no left bracket, then consider right brackets fair game too
1736 if ( strpos( $url, '(' ) === false ) {
1740 $urlRev = strrev( $url );
1741 $numSepChars = strspn( $urlRev, $sep );
1742 # Don't break a trailing HTML entity by moving the ; into $trail
1743 # This is in hot code, so use substr_compare to avoid having to
1744 # create a new string object for the comparison
1745 if ( $numSepChars && substr_compare( $url, ";", -$numSepChars, 1 ) === 0 ) {
1746 # more optimization: instead of running preg_match with a $
1747 # anchor, which can be slow, do the match on the reversed
1748 # string starting at the desired offset.
1749 # un-reversed regexp is: /&([a-z]+|#x[\da-f]+|#\d+)$/i
1750 if ( preg_match( '/\G([a-z]+|[\da-f]+x#|\d+#)&/i', $urlRev, $m2, 0, $numSepChars ) ) {
1754 if ( $numSepChars ) {
1755 $trail = substr( $url, -$numSepChars ) . $trail;
1756 $url = substr( $url, 0, -$numSepChars );
1759 # Verify that we still have a real URL after trail removal, and
1760 # not just lone protocol
1761 if ( strlen( $trail ) >= $numPostProto ) {
1762 return $url . $trail;
1765 $url = Sanitizer
::cleanUrl( $url );
1767 # Is this an external image?
1768 $text = $this->maybeMakeExternalImage( $url );
1769 if ( $text === false ) {
1770 # Not an image, make a link
1771 $text = Linker
::makeExternalLink( $url,
1772 $this->getTargetLanguage()->getConverter()->markNoConversion( $url ),
1774 $this->getExternalLinkAttribs( $url ), $this->mTitle
);
1775 # Register it in the output object...
1776 $this->mOutput
->addExternalLink( $url );
1778 return $text . $trail;
1782 * Parse headers and return html
1786 * @param string $text
1790 public function doHeadings( $text ) {
1791 for ( $i = 6; $i >= 1; --$i ) {
1792 $h = str_repeat( '=', $i );
1793 // Trim non-newline whitespace from headings
1794 // Using \s* will break for: "==\n===\n" and parse as <h2>=</h2>
1795 $text = preg_replace( "/^(?:$h)[ \\t]*(.+?)[ \\t]*(?:$h)\\s*$/m", "<h$i>\\1</h$i>", $text );
1801 * Replace single quotes with HTML markup
1804 * @param string $text
1806 * @return string The altered text
1808 public function doAllQuotes( $text ) {
1810 $lines = StringUtils
::explode( "\n", $text );
1811 foreach ( $lines as $line ) {
1812 $outtext .= $this->doQuotes( $line ) . "\n";
1814 $outtext = substr( $outtext, 0, -1 );
1819 * Helper function for doAllQuotes()
1821 * @param string $text
1825 public function doQuotes( $text ) {
1826 $arr = preg_split( "/(''+)/", $text, -1, PREG_SPLIT_DELIM_CAPTURE
);
1827 $countarr = count( $arr );
1828 if ( $countarr == 1 ) {
1832 // First, do some preliminary work. This may shift some apostrophes from
1833 // being mark-up to being text. It also counts the number of occurrences
1834 // of bold and italics mark-ups.
1837 for ( $i = 1; $i < $countarr; $i +
= 2 ) {
1838 $thislen = strlen( $arr[$i] );
1839 // If there are ever four apostrophes, assume the first is supposed to
1840 // be text, and the remaining three constitute mark-up for bold text.
1841 // (T15227: ''''foo'''' turns into ' ''' foo ' ''')
1842 if ( $thislen == 4 ) {
1843 $arr[$i - 1] .= "'";
1846 } elseif ( $thislen > 5 ) {
1847 // If there are more than 5 apostrophes in a row, assume they're all
1848 // text except for the last 5.
1849 // (T15227: ''''''foo'''''' turns into ' ''''' foo ' ''''')
1850 $arr[$i - 1] .= str_repeat( "'", $thislen - 5 );
1854 // Count the number of occurrences of bold and italics mark-ups.
1855 if ( $thislen == 2 ) {
1857 } elseif ( $thislen == 3 ) {
1859 } elseif ( $thislen == 5 ) {
1865 // If there is an odd number of both bold and italics, it is likely
1866 // that one of the bold ones was meant to be an apostrophe followed
1867 // by italics. Which one we cannot know for certain, but it is more
1868 // likely to be one that has a single-letter word before it.
1869 if ( ( $numbold %
2 == 1 ) && ( $numitalics %
2 == 1 ) ) {
1870 $firstsingleletterword = -1;
1871 $firstmultiletterword = -1;
1873 for ( $i = 1; $i < $countarr; $i +
= 2 ) {
1874 if ( strlen( $arr[$i] ) == 3 ) {
1875 $x1 = substr( $arr[$i - 1], -1 );
1876 $x2 = substr( $arr[$i - 1], -2, 1 );
1877 if ( $x1 === ' ' ) {
1878 if ( $firstspace == -1 ) {
1881 } elseif ( $x2 === ' ' ) {
1882 $firstsingleletterword = $i;
1883 // if $firstsingleletterword is set, we don't
1884 // look at the other options, so we can bail early.
1886 } elseif ( $firstmultiletterword == -1 ) {
1887 $firstmultiletterword = $i;
1892 // If there is a single-letter word, use it!
1893 if ( $firstsingleletterword > -1 ) {
1894 $arr[$firstsingleletterword] = "''";
1895 $arr[$firstsingleletterword - 1] .= "'";
1896 } elseif ( $firstmultiletterword > -1 ) {
1897 // If not, but there's a multi-letter word, use that one.
1898 $arr[$firstmultiletterword] = "''";
1899 $arr[$firstmultiletterword - 1] .= "'";
1900 } elseif ( $firstspace > -1 ) {
1901 // ... otherwise use the first one that has neither.
1902 // (notice that it is possible for all three to be -1 if, for example,
1903 // there is only one pentuple-apostrophe in the line)
1904 $arr[$firstspace] = "''";
1905 $arr[$firstspace - 1] .= "'";
1909 // Now let's actually convert our apostrophic mush to HTML!
1914 foreach ( $arr as $r ) {
1915 if ( ( $i %
2 ) == 0 ) {
1916 if ( $state === 'both' ) {
1922 $thislen = strlen( $r );
1923 if ( $thislen == 2 ) {
1924 if ( $state === 'i' ) {
1927 } elseif ( $state === 'bi' ) {
1930 } elseif ( $state === 'ib' ) {
1931 $output .= '</b></i><b>';
1933 } elseif ( $state === 'both' ) {
1934 $output .= '<b><i>' . $buffer . '</i>';
1936 } else { // $state can be 'b' or ''
1940 } elseif ( $thislen == 3 ) {
1941 if ( $state === 'b' ) {
1944 } elseif ( $state === 'bi' ) {
1945 $output .= '</i></b><i>';
1947 } elseif ( $state === 'ib' ) {
1950 } elseif ( $state === 'both' ) {
1951 $output .= '<i><b>' . $buffer . '</b>';
1953 } else { // $state can be 'i' or ''
1957 } elseif ( $thislen == 5 ) {
1958 if ( $state === 'b' ) {
1959 $output .= '</b><i>';
1961 } elseif ( $state === 'i' ) {
1962 $output .= '</i><b>';
1964 } elseif ( $state === 'bi' ) {
1965 $output .= '</i></b>';
1967 } elseif ( $state === 'ib' ) {
1968 $output .= '</b></i>';
1970 } elseif ( $state === 'both' ) {
1971 $output .= '<i><b>' . $buffer . '</b></i>';
1973 } else { // ($state == '')
1981 // Now close all remaining tags. Notice that the order is important.
1982 if ( $state === 'b' ||
$state === 'ib' ) {
1985 if ( $state === 'i' ||
$state === 'bi' ||
$state === 'ib' ) {
1988 if ( $state === 'bi' ) {
1991 // There might be lonely ''''', so make sure we have a buffer
1992 if ( $state === 'both' && $buffer ) {
1993 $output .= '<b><i>' . $buffer . '</i></b>';
1999 * Replace external links (REL)
2001 * Note: this is all very hackish and the order of execution matters a lot.
2002 * Make sure to run tests/parser/parserTests.php if you change this code.
2006 * @param string $text
2008 * @throws MWException
2011 public function replaceExternalLinks( $text ) {
2012 $bits = preg_split( $this->mExtLinkBracketedRegex
, $text, -1, PREG_SPLIT_DELIM_CAPTURE
);
2013 if ( $bits === false ) {
2014 throw new MWException( "PCRE needs to be compiled with "
2015 . "--enable-unicode-properties in order for MediaWiki to function" );
2017 $s = array_shift( $bits );
2020 while ( $i < count( $bits ) ) {
2023 $text = $bits[$i++
];
2024 $trail = $bits[$i++
];
2026 # The characters '<' and '>' (which were escaped by
2027 # removeHTMLtags()) should not be included in
2028 # URLs, per RFC 2396.
2030 if ( preg_match( '/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE
) ) {
2031 $text = substr( $url, $m2[0][1] ) . ' ' . $text;
2032 $url = substr( $url, 0, $m2[0][1] );
2035 # If the link text is an image URL, replace it with an <img> tag
2036 # This happened by accident in the original parser, but some people used it extensively
2037 $img = $this->maybeMakeExternalImage( $text );
2038 if ( $img !== false ) {
2044 # Set linktype for CSS
2047 # No link text, e.g. [http://domain.tld/some.link]
2048 if ( $text == '' ) {
2050 $langObj = $this->getTargetLanguage();
2051 $text = '[' . $langObj->formatNum( ++
$this->mAutonumber
) . ']';
2052 $linktype = 'autonumber';
2054 # Have link text, e.g. [http://domain.tld/some.link text]s
2056 list( $dtrail, $trail ) = Linker
::splitTrail( $trail );
2059 // Excluding protocol-relative URLs may avoid many false positives.
2060 if ( preg_match( '/^(?:' . wfUrlProtocolsWithoutProtRel() . ')/', $text ) ) {
2061 $text = $this->getTargetLanguage()->getConverter()->markNoConversion( $text );
2064 $url = Sanitizer
::cleanUrl( $url );
2066 # Use the encoded URL
2067 # This means that users can paste URLs directly into the text
2068 # Funny characters like ö aren't valid in URLs anyway
2069 # This was changed in August 2004
2070 $s .= Linker
::makeExternalLink( $url, $text, false, $linktype,
2071 $this->getExternalLinkAttribs( $url ), $this->mTitle
) . $dtrail . $trail;
2073 # Register link in the output object.
2074 $this->mOutput
->addExternalLink( $url );
2081 * Get the rel attribute for a particular external link.
2084 * @param string|bool $url Optional URL, to extract the domain from for rel =>
2085 * nofollow if appropriate
2086 * @param LinkTarget|null $title Optional LinkTarget, for wgNoFollowNsExceptions lookups
2087 * @return string|null Rel attribute for $url
2089 public static function getExternalLinkRel( $url = false, $title = null ) {
2090 global $wgNoFollowLinks, $wgNoFollowNsExceptions, $wgNoFollowDomainExceptions;
2091 $ns = $title ?
$title->getNamespace() : false;
2092 if ( $wgNoFollowLinks && !in_array( $ns, $wgNoFollowNsExceptions )
2093 && !wfMatchesDomainList( $url, $wgNoFollowDomainExceptions )
2101 * Get an associative array of additional HTML attributes appropriate for a
2102 * particular external link. This currently may include rel => nofollow
2103 * (depending on configuration, namespace, and the URL's domain) and/or a
2104 * target attribute (depending on configuration).
2106 * @param string $url URL to extract the domain from for rel =>
2107 * nofollow if appropriate
2108 * @return array Associative array of HTML attributes
2110 public function getExternalLinkAttribs( $url ) {
2112 $rel = self
::getExternalLinkRel( $url, $this->mTitle
);
2114 $target = $this->mOptions
->getExternalLinkTarget();
2116 $attribs['target'] = $target;
2117 if ( !in_array( $target, [ '_self', '_parent', '_top' ] ) ) {
2118 // T133507. New windows can navigate parent cross-origin.
2119 // Including noreferrer due to lacking browser
2120 // support of noopener. Eventually noreferrer should be removed.
2121 if ( $rel !== '' ) {
2124 $rel .= 'noreferrer noopener';
2127 $attribs['rel'] = $rel;
2132 * Replace unusual escape codes in a URL with their equivalent characters
2134 * This generally follows the syntax defined in RFC 3986, with special
2135 * consideration for HTTP query strings.
2137 * @param string $url
2140 public static function normalizeLinkUrl( $url ) {
2141 # Test for RFC 3986 IPv6 syntax
2142 $scheme = '[a-z][a-z0-9+.-]*:';
2143 $userinfo = '(?:[a-z0-9\-._~!$&\'()*+,;=:]|%[0-9a-f]{2})*';
2144 $ipv6Host = '\\[((?:[0-9a-f:]|%3[0-A]|%[46][1-6])+)\\]';
2145 if ( preg_match( "<^(?:{$scheme})?//(?:{$userinfo}@)?{$ipv6Host}(?:[:/?#].*|)$>i", $url, $m ) &&
2146 IP
::isValid( rawurldecode( $m[1] ) )
2148 $isIPv6 = rawurldecode( $m[1] );
2153 # Make sure unsafe characters are encoded
2154 $url = preg_replace_callback( '/[\x00-\x20"<>\[\\\\\]^`{|}\x7F-\xFF]/',
2156 return rawurlencode( $m[0] );
2162 $end = strlen( $url );
2164 # Fragment part - 'fragment'
2165 $start = strpos( $url, '#' );
2166 if ( $start !== false && $start < $end ) {
2167 $ret = self
::normalizeUrlComponent(
2168 substr( $url, $start, $end - $start ), '"#%<>[\]^`{|}' ) . $ret;
2172 # Query part - 'query' minus &=+;
2173 $start = strpos( $url, '?' );
2174 if ( $start !== false && $start < $end ) {
2175 $ret = self
::normalizeUrlComponent(
2176 substr( $url, $start, $end - $start ), '"#%<>[\]^`{|}&=+;' ) . $ret;
2180 # Scheme and path part - 'pchar'
2181 # (we assume no userinfo or encoded colons in the host)
2182 $ret = self
::normalizeUrlComponent(
2183 substr( $url, 0, $end ), '"#%<>[\]^`{|}/?' ) . $ret;
2186 if ( $isIPv6 !== false ) {
2187 $ipv6Host = "%5B({$isIPv6})%5D";
2188 $ret = preg_replace(
2189 "<^((?:{$scheme})?//(?:{$userinfo}@)?){$ipv6Host}(?=[:/?#]|$)>i",
2198 private static function normalizeUrlComponent( $component, $unsafe ) {
2199 $callback = function ( $matches ) use ( $unsafe ) {
2200 $char = urldecode( $matches[0] );
2201 $ord = ord( $char );
2202 if ( $ord > 32 && $ord < 127 && strpos( $unsafe, $char ) === false ) {
2206 # Leave it escaped, but use uppercase for a-f
2207 return strtoupper( $matches[0] );
2210 return preg_replace_callback( '/%[0-9A-Fa-f]{2}/', $callback, $component );
2214 * make an image if it's allowed, either through the global
2215 * option, through the exception, or through the on-wiki whitelist
2217 * @param string $url
2221 private function maybeMakeExternalImage( $url ) {
2222 $imagesfrom = $this->mOptions
->getAllowExternalImagesFrom();
2223 $imagesexception = !empty( $imagesfrom );
2225 # $imagesfrom could be either a single string or an array of strings, parse out the latter
2226 if ( $imagesexception && is_array( $imagesfrom ) ) {
2227 $imagematch = false;
2228 foreach ( $imagesfrom as $match ) {
2229 if ( strpos( $url, $match ) === 0 ) {
2234 } elseif ( $imagesexception ) {
2235 $imagematch = ( strpos( $url, $imagesfrom ) === 0 );
2237 $imagematch = false;
2240 if ( $this->mOptions
->getAllowExternalImages()
2241 ||
( $imagesexception && $imagematch )
2243 if ( preg_match( self
::EXT_IMAGE_REGEX
, $url ) ) {
2245 $text = Linker
::makeExternalImage( $url );
2248 if ( !$text && $this->mOptions
->getEnableImageWhitelist()
2249 && preg_match( self
::EXT_IMAGE_REGEX
, $url )
2251 $whitelist = explode(
2253 wfMessage( 'external_image_whitelist' )->inContentLanguage()->text()
2256 foreach ( $whitelist as $entry ) {
2257 # Sanitize the regex fragment, make it case-insensitive, ignore blank entries/comments
2258 if ( strpos( $entry, '#' ) === 0 ||
$entry === '' ) {
2261 if ( preg_match( '/' . str_replace( '/', '\\/', $entry ) . '/i', $url ) ) {
2262 # Image matches a whitelist entry
2263 $text = Linker
::makeExternalImage( $url );
2272 * Process [[ ]] wikilinks
2276 * @return string Processed text
2280 public function replaceInternalLinks( $s ) {
2281 $this->mLinkHolders
->merge( $this->replaceInternalLinks2( $s ) );
2286 * Process [[ ]] wikilinks (RIL)
2288 * @throws MWException
2289 * @return LinkHolderArray
2293 public function replaceInternalLinks2( &$s ) {
2294 static $tc = false, $e1, $e1_img;
2295 # the % is needed to support urlencoded titles as well
2297 $tc = Title
::legalChars() . '#%';
2298 # Match a link having the form [[namespace:link|alternate]]trail
2299 $e1 = "/^([{$tc}]+)(?:\\|(.+?))?]](.*)\$/sD";
2300 # Match cases where there is no "]]", which might still be images
2301 $e1_img = "/^([{$tc}]+)\\|(.*)\$/sD";
2304 $holders = new LinkHolderArray( $this );
2306 # split the entire text string on occurrences of [[
2307 $a = StringUtils
::explode( '[[', ' ' . $s );
2308 # get the first element (all text up to first [[), and remove the space we added
2311 $line = $a->current(); # Workaround for broken ArrayIterator::next() that returns "void"
2312 $s = substr( $s, 1 );
2314 $useLinkPrefixExtension = $this->getTargetLanguage()->linkPrefixExtension();
2316 if ( $useLinkPrefixExtension ) {
2317 # Match the end of a line for a word that's not followed by whitespace,
2318 # e.g. in the case of 'The Arab al[[Razi]]', 'al' will be matched
2319 $charset = $this->contLang
->linkPrefixCharset();
2320 $e2 = "/^((?>.*[^$charset]|))(.+)$/sDu";
2323 if ( is_null( $this->mTitle
) ) {
2324 throw new MWException( __METHOD__
. ": \$this->mTitle is null\n" );
2326 $nottalk = !$this->mTitle
->isTalkPage();
2328 if ( $useLinkPrefixExtension ) {
2330 if ( preg_match( $e2, $s, $m ) ) {
2331 $first_prefix = $m[2];
2333 $first_prefix = false;
2339 $useSubpages = $this->areSubpagesAllowed();
2341 # Loop for each link
2342 for ( ; $line !== false && $line !== null; $a->next(), $line = $a->current() ) {
2343 # Check for excessive memory usage
2344 if ( $holders->isBig() ) {
2346 # Do the existence check, replace the link holders and clear the array
2347 $holders->replace( $s );
2351 if ( $useLinkPrefixExtension ) {
2352 if ( preg_match( $e2, $s, $m ) ) {
2353 list( , $s, $prefix ) = $m;
2358 if ( $first_prefix ) {
2359 $prefix = $first_prefix;
2360 $first_prefix = false;
2364 $might_be_img = false;
2366 if ( preg_match( $e1, $line, $m ) ) { # page with normal text or alt
2368 # If we get a ] at the beginning of $m[3] that means we have a link that's something like:
2369 # [[Image:Foo.jpg|[http://example.com desc]]] <- having three ] in a row fucks up,
2370 # the real problem is with the $e1 regex
2372 # Still some problems for cases where the ] is meant to be outside punctuation,
2373 # and no image is in sight. See T4095.
2375 && substr( $m[3], 0, 1 ) === ']'
2376 && strpos( $text, '[' ) !== false
2378 $text .= ']'; # so that replaceExternalLinks($text) works later
2379 $m[3] = substr( $m[3], 1 );
2381 # fix up urlencoded title texts
2382 if ( strpos( $m[1], '%' ) !== false ) {
2383 # Should anchors '#' also be rejected?
2384 $m[1] = str_replace( [ '<', '>' ], [ '<', '>' ], rawurldecode( $m[1] ) );
2387 } elseif ( preg_match( $e1_img, $line, $m ) ) {
2388 # Invalid, but might be an image with a link in its caption
2389 $might_be_img = true;
2391 if ( strpos( $m[1], '%' ) !== false ) {
2392 $m[1] = str_replace( [ '<', '>' ], [ '<', '>' ], rawurldecode( $m[1] ) );
2395 } else { # Invalid form; output directly
2396 $s .= $prefix . '[[' . $line;
2400 $origLink = ltrim( $m[1], ' ' );
2402 # Don't allow internal links to pages containing
2403 # PROTO: where PROTO is a valid URL protocol; these
2404 # should be external links.
2405 if ( preg_match( '/^(?i:' . $this->mUrlProtocols
. ')/', $origLink ) ) {
2406 $s .= $prefix . '[[' . $line;
2410 # Make subpage if necessary
2411 if ( $useSubpages ) {
2412 $link = $this->maybeDoSubpageLink( $origLink, $text );
2417 // \x7f isn't a default legal title char, so most likely strip
2418 // markers will force us into the "invalid form" path above. But,
2419 // just in case, let's assert that xmlish tags aren't valid in
2420 // the title position.
2421 $unstrip = $this->mStripState
->killMarkers( $link );
2422 $noMarkers = ( $unstrip === $link );
2424 $nt = $noMarkers ? Title
::newFromText( $link ) : null;
2425 if ( $nt === null ) {
2426 $s .= $prefix . '[[' . $line;
2430 $ns = $nt->getNamespace();
2431 $iw = $nt->getInterwiki();
2433 $noforce = ( substr( $origLink, 0, 1 ) !== ':' );
2435 if ( $might_be_img ) { # if this is actually an invalid link
2436 if ( $ns == NS_FILE
&& $noforce ) { # but might be an image
2439 # look at the next 'line' to see if we can close it there
2441 $next_line = $a->current();
2442 if ( $next_line === false ||
$next_line === null ) {
2445 $m = explode( ']]', $next_line, 3 );
2446 if ( count( $m ) == 3 ) {
2447 # the first ]] closes the inner link, the second the image
2449 $text .= "[[{$m[0]}]]{$m[1]}";
2452 } elseif ( count( $m ) == 2 ) {
2453 # if there's exactly one ]] that's fine, we'll keep looking
2454 $text .= "[[{$m[0]}]]{$m[1]}";
2456 # if $next_line is invalid too, we need look no further
2457 $text .= '[[' . $next_line;
2462 # we couldn't find the end of this imageLink, so output it raw
2463 # but don't ignore what might be perfectly normal links in the text we've examined
2464 $holders->merge( $this->replaceInternalLinks2( $text ) );
2465 $s .= "{$prefix}[[$link|$text";
2466 # note: no $trail, because without an end, there *is* no trail
2469 } else { # it's not an image, so output it raw
2470 $s .= "{$prefix}[[$link|$text";
2471 # note: no $trail, because without an end, there *is* no trail
2476 $wasblank = ( $text == '' );
2480 # Strip off leading ':'
2481 $text = substr( $text, 1 );
2484 # T6598 madness. Handle the quotes only if they come from the alternate part
2485 # [[Lista d''e paise d''o munno]] -> <a href="...">Lista d''e paise d''o munno</a>
2486 # [[Criticism of Harry Potter|Criticism of ''Harry Potter'']]
2487 # -> <a href="Criticism of Harry Potter">Criticism of <i>Harry Potter</i></a>
2488 $text = $this->doQuotes( $text );
2491 # Link not escaped by : , create the various objects
2492 if ( $noforce && !$nt->wasLocalInterwiki() ) {
2495 $iw && $this->mOptions
->getInterwikiMagic() && $nottalk && (
2496 Language
::fetchLanguageName( $iw, null, 'mw' ) ||
2497 in_array( $iw, $this->svcOptions
->get( 'ExtraInterlanguageLinkPrefixes' ) )
2500 # T26502: filter duplicates
2501 if ( !isset( $this->mLangLinkLanguages
[$iw] ) ) {
2502 $this->mLangLinkLanguages
[$iw] = true;
2503 $this->mOutput
->addLanguageLink( $nt->getFullText() );
2507 * Strip the whitespace interwiki links produce, see T10897
2509 $s = rtrim( $s . $prefix ) . $trail; # T175416
2513 if ( $ns == NS_FILE
) {
2514 if ( !$this->badFileLookup
->isBadFile( $nt->getDBkey(), $this->mTitle
) ) {
2516 # if no parameters were passed, $text
2517 # becomes something like "File:Foo.png",
2518 # which we don't want to pass on to the
2522 # recursively parse links inside the image caption
2523 # actually, this will parse them in any other parameters, too,
2524 # but it might be hard to fix that, and it doesn't matter ATM
2525 $text = $this->replaceExternalLinks( $text );
2526 $holders->merge( $this->replaceInternalLinks2( $text ) );
2528 # cloak any absolute URLs inside the image markup, so replaceExternalLinks() won't touch them
2529 $s .= $prefix . $this->armorLinks(
2530 $this->makeImage( $nt, $text, $holders ) ) . $trail;
2533 } elseif ( $ns == NS_CATEGORY
) {
2535 * Strip the whitespace Category links produce, see T2087
2537 $s = rtrim( $s . $prefix ) . $trail; # T2087, T87753
2540 $sortkey = $this->getDefaultSort();
2544 $sortkey = Sanitizer
::decodeCharReferences( $sortkey );
2545 $sortkey = str_replace( "\n", '', $sortkey );
2546 $sortkey = $this->getTargetLanguage()->convertCategoryKey( $sortkey );
2547 $this->mOutput
->addCategory( $nt->getDBkey(), $sortkey );
2553 # Self-link checking. For some languages, variants of the title are checked in
2554 # LinkHolderArray::doVariants() to allow batching the existence checks necessary
2555 # for linking to a different variant.
2556 if ( $ns != NS_SPECIAL
&& $nt->equals( $this->mTitle
) && !$nt->hasFragment() ) {
2557 $s .= $prefix . Linker
::makeSelfLinkObj( $nt, $text, '', $trail );
2561 # NS_MEDIA is a pseudo-namespace for linking directly to a file
2562 # @todo FIXME: Should do batch file existence checks, see comment below
2563 if ( $ns == NS_MEDIA
) {
2564 # Give extensions a chance to select the file revision for us
2567 Hooks
::run( 'BeforeParserFetchFileAndTitle',
2568 [ $this, $nt, &$options, &$descQuery ] );
2569 # Fetch and register the file (file title may be different via hooks)
2570 list( $file, $nt ) = $this->fetchFileAndTitle( $nt, $options );
2571 # Cloak with NOPARSE to avoid replacement in replaceExternalLinks
2572 $s .= $prefix . $this->armorLinks(
2573 Linker
::makeMediaLinkFile( $nt, $file, $text ) ) . $trail;
2577 # Some titles, such as valid special pages or files in foreign repos, should
2578 # be shown as bluelinks even though they're not included in the page table
2579 # @todo FIXME: isAlwaysKnown() can be expensive for file links; we should really do
2580 # batch file existence checks for NS_FILE and NS_MEDIA
2581 if ( $iw == '' && $nt->isAlwaysKnown() ) {
2582 $this->mOutput
->addLink( $nt );
2583 $s .= $this->makeKnownLinkHolder( $nt, $text, $trail, $prefix );
2585 # Links will be added to the output link list after checking
2586 $s .= $holders->makeHolder( $nt, $text, [], $trail, $prefix );
2593 * Render a forced-blue link inline; protect against double expansion of
2594 * URLs if we're in a mode that prepends full URL prefixes to internal links.
2595 * Since this little disaster has to split off the trail text to avoid
2596 * breaking URLs in the following text without breaking trails on the
2597 * wiki links, it's been made into a horrible function.
2600 * @param string $text
2601 * @param string $trail
2602 * @param string $prefix
2603 * @return string HTML-wikitext mix oh yuck
2605 protected function makeKnownLinkHolder( $nt, $text = '', $trail = '', $prefix = '' ) {
2606 list( $inside, $trail ) = Linker
::splitTrail( $trail );
2608 if ( $text == '' ) {
2609 $text = htmlspecialchars( $nt->getPrefixedText() );
2612 $link = $this->getLinkRenderer()->makeKnownLink(
2613 $nt, new HtmlArmor( "$prefix$text$inside" )
2616 return $this->armorLinks( $link ) . $trail;
2620 * Insert a NOPARSE hacky thing into any inline links in a chunk that's
2621 * going to go through further parsing steps before inline URL expansion.
2623 * Not needed quite as much as it used to be since free links are a bit
2624 * more sensible these days. But bracketed links are still an issue.
2626 * @param string $text More-or-less HTML
2627 * @return string Less-or-more HTML with NOPARSE bits
2629 public function armorLinks( $text ) {
2630 return preg_replace( '/\b((?i)' . $this->mUrlProtocols
. ')/',
2631 self
::MARKER_PREFIX
. "NOPARSE$1", $text );
2635 * Return true if subpage links should be expanded on this page.
2638 public function areSubpagesAllowed() {
2639 # Some namespaces don't allow subpages
2640 return $this->nsInfo
->hasSubpages( $this->mTitle
->getNamespace() );
2644 * Handle link to subpage if necessary
2646 * @param string $target The source of the link
2647 * @param string &$text The link text, modified as necessary
2648 * @return string The full name of the link
2651 public function maybeDoSubpageLink( $target, &$text ) {
2652 return Linker
::normalizeSubpageLink( $this->mTitle
, $target, $text );
2656 * Make lists from lines starting with ':', '*', '#', etc. (DBL)
2658 * @param string $text
2659 * @param bool $linestart Whether or not this is at the start of a line.
2661 * @return string The lists rendered as HTML
2663 public function doBlockLevels( $text, $linestart ) {
2664 return BlockLevelPass
::doBlockLevels( $text, $linestart );
2668 * Return value of a magic variable (like PAGENAME)
2672 * @param string $index Magic variable identifier as mapped in MagicWordFactory::$mVariableIDs
2673 * @param bool|PPFrame $frame
2675 * @throws MWException
2678 public function getVariableValue( $index, $frame = false ) {
2679 if ( is_null( $this->mTitle
) ) {
2680 // If no title set, bad things are going to happen
2681 // later. Title should always be set since this
2682 // should only be called in the middle of a parse
2683 // operation (but the unit-tests do funky stuff)
2684 throw new MWException( __METHOD__
. ' Should only be '
2685 . ' called while parsing (no title set)' );
2688 // Avoid PHP 7.1 warning from passing $this by reference
2692 * Some of these require message or data lookups and can be
2693 * expensive to check many times.
2696 Hooks
::run( 'ParserGetVariableValueVarCache', [ &$parser, &$this->mVarCache
] ) &&
2697 isset( $this->mVarCache
[$index] )
2699 return $this->mVarCache
[$index];
2702 $ts = wfTimestamp( TS_UNIX
, $this->mOptions
->getTimestamp() );
2703 Hooks
::run( 'ParserGetVariableValueTs', [ &$parser, &$ts ] );
2705 $pageLang = $this->getFunctionLang();
2711 case 'currentmonth':
2712 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'm' ), true );
2714 case 'currentmonth1':
2715 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'n' ), true );
2717 case 'currentmonthname':
2718 $value = $pageLang->getMonthName( MWTimestamp
::getInstance( $ts )->format( 'n' ) );
2720 case 'currentmonthnamegen':
2721 $value = $pageLang->getMonthNameGen( MWTimestamp
::getInstance( $ts )->format( 'n' ) );
2723 case 'currentmonthabbrev':
2724 $value = $pageLang->getMonthAbbreviation( MWTimestamp
::getInstance( $ts )->format( 'n' ) );
2727 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'j' ), true );
2730 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'd' ), true );
2733 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'm' ), true );
2736 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'n' ), true );
2738 case 'localmonthname':
2739 $value = $pageLang->getMonthName( MWTimestamp
::getLocalInstance( $ts )->format( 'n' ) );
2741 case 'localmonthnamegen':
2742 $value = $pageLang->getMonthNameGen( MWTimestamp
::getLocalInstance( $ts )->format( 'n' ) );
2744 case 'localmonthabbrev':
2745 $value = $pageLang->getMonthAbbreviation( MWTimestamp
::getLocalInstance( $ts )->format( 'n' ) );
2748 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'j' ), true );
2751 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'd' ), true );
2754 $value = wfEscapeWikiText( $this->mTitle
->getText() );
2757 $value = wfEscapeWikiText( $this->mTitle
->getPartialURL() );
2759 case 'fullpagename':
2760 $value = wfEscapeWikiText( $this->mTitle
->getPrefixedText() );
2762 case 'fullpagenamee':
2763 $value = wfEscapeWikiText( $this->mTitle
->getPrefixedURL() );
2766 $value = wfEscapeWikiText( $this->mTitle
->getSubpageText() );
2768 case 'subpagenamee':
2769 $value = wfEscapeWikiText( $this->mTitle
->getSubpageUrlForm() );
2771 case 'rootpagename':
2772 $value = wfEscapeWikiText( $this->mTitle
->getRootText() );
2774 case 'rootpagenamee':
2775 $value = wfEscapeWikiText( wfUrlencode( str_replace(
2778 $this->mTitle
->getRootText()
2781 case 'basepagename':
2782 $value = wfEscapeWikiText( $this->mTitle
->getBaseText() );
2784 case 'basepagenamee':
2785 $value = wfEscapeWikiText( wfUrlencode( str_replace(
2788 $this->mTitle
->getBaseText()
2791 case 'talkpagename':
2792 if ( $this->mTitle
->canHaveTalkPage() ) {
2793 $talkPage = $this->mTitle
->getTalkPage();
2794 $value = wfEscapeWikiText( $talkPage->getPrefixedText() );
2799 case 'talkpagenamee':
2800 if ( $this->mTitle
->canHaveTalkPage() ) {
2801 $talkPage = $this->mTitle
->getTalkPage();
2802 $value = wfEscapeWikiText( $talkPage->getPrefixedURL() );
2807 case 'subjectpagename':
2808 $subjPage = $this->mTitle
->getSubjectPage();
2809 $value = wfEscapeWikiText( $subjPage->getPrefixedText() );
2811 case 'subjectpagenamee':
2812 $subjPage = $this->mTitle
->getSubjectPage();
2813 $value = wfEscapeWikiText( $subjPage->getPrefixedURL() );
2815 case 'pageid': // requested in T25427
2816 # Inform the edit saving system that getting the canonical output
2817 # after page insertion requires a parse that used that exact page ID
2818 $this->setOutputFlag( 'vary-page-id', '{{PAGEID}} used' );
2819 $value = $this->mTitle
->getArticleID();
2821 $value = $this->mOptions
->getSpeculativePageId();
2823 $this->mOutput
->setSpeculativePageIdUsed( $value );
2829 $this->svcOptions
->get( 'MiserMode' ) &&
2830 !$this->mOptions
->getInterfaceMessage() &&
2831 // @TODO: disallow this word on all namespaces
2832 $this->nsInfo
->isContent( $this->mTitle
->getNamespace() )
2834 // Use a stub result instead of the actual revision ID in order to avoid
2835 // double parses on page save but still allow preview detection (T137900)
2836 if ( $this->getRevisionId() ||
$this->mOptions
->getSpeculativeRevId() ) {
2839 $this->setOutputFlag( 'vary-revision-exists', '{{REVISIONID}} used' );
2843 # Inform the edit saving system that getting the canonical output after
2844 # revision insertion requires a parse that used that exact revision ID
2845 $this->setOutputFlag( 'vary-revision-id', '{{REVISIONID}} used' );
2846 $value = $this->getRevisionId();
2847 if ( $value === 0 ) {
2848 $rev = $this->getRevisionObject();
2849 $value = $rev ?
$rev->getId() : $value;
2852 $value = $this->mOptions
->getSpeculativeRevId();
2854 $this->mOutput
->setSpeculativeRevIdUsed( $value );
2860 $value = (int)$this->getRevisionTimestampSubstring( 6, 2, self
::MAX_TTS
, $index );
2862 case 'revisionday2':
2863 $value = $this->getRevisionTimestampSubstring( 6, 2, self
::MAX_TTS
, $index );
2865 case 'revisionmonth':
2866 $value = $this->getRevisionTimestampSubstring( 4, 2, self
::MAX_TTS
, $index );
2868 case 'revisionmonth1':
2869 $value = (int)$this->getRevisionTimestampSubstring( 4, 2, self
::MAX_TTS
, $index );
2871 case 'revisionyear':
2872 $value = $this->getRevisionTimestampSubstring( 0, 4, self
::MAX_TTS
, $index );
2874 case 'revisiontimestamp':
2875 $value = $this->getRevisionTimestampSubstring( 0, 14, self
::MAX_TTS
, $index );
2877 case 'revisionuser':
2878 # Inform the edit saving system that getting the canonical output after
2879 # revision insertion requires a parse that used the actual user ID
2880 $this->setOutputFlag( 'vary-user', '{{REVISIONUSER}} used' );
2881 $value = $this->getRevisionUser();
2883 case 'revisionsize':
2884 $value = $this->getRevisionSize();
2887 $value = str_replace( '_', ' ',
2888 $this->contLang
->getNsText( $this->mTitle
->getNamespace() ) );
2891 $value = wfUrlencode( $this->contLang
->getNsText( $this->mTitle
->getNamespace() ) );
2893 case 'namespacenumber':
2894 $value = $this->mTitle
->getNamespace();
2897 $value = $this->mTitle
->canHaveTalkPage()
2898 ?
str_replace( '_', ' ', $this->mTitle
->getTalkNsText() )
2902 $value = $this->mTitle
->canHaveTalkPage() ?
wfUrlencode( $this->mTitle
->getTalkNsText() ) : '';
2904 case 'subjectspace':
2905 $value = str_replace( '_', ' ', $this->mTitle
->getSubjectNsText() );
2907 case 'subjectspacee':
2908 $value = ( wfUrlencode( $this->mTitle
->getSubjectNsText() ) );
2910 case 'currentdayname':
2911 $value = $pageLang->getWeekdayName( (int)MWTimestamp
::getInstance( $ts )->format( 'w' ) +
1 );
2914 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'Y' ), true );
2917 $value = $pageLang->time( wfTimestamp( TS_MW
, $ts ), false, false );
2920 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'H' ), true );
2923 # @bug T6594 PHP5 has it zero padded, PHP4 does not, cast to
2924 # int to remove the padding
2925 $value = $pageLang->formatNum( (int)MWTimestamp
::getInstance( $ts )->format( 'W' ) );
2928 $value = $pageLang->formatNum( MWTimestamp
::getInstance( $ts )->format( 'w' ) );
2930 case 'localdayname':
2931 $value = $pageLang->getWeekdayName(
2932 (int)MWTimestamp
::getLocalInstance( $ts )->format( 'w' ) +
1
2936 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'Y' ), true );
2939 $value = $pageLang->time(
2940 MWTimestamp
::getLocalInstance( $ts )->format( 'YmdHis' ),
2946 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'H' ), true );
2949 # @bug T6594 PHP5 has it zero padded, PHP4 does not, cast to
2950 # int to remove the padding
2951 $value = $pageLang->formatNum( (int)MWTimestamp
::getLocalInstance( $ts )->format( 'W' ) );
2954 $value = $pageLang->formatNum( MWTimestamp
::getLocalInstance( $ts )->format( 'w' ) );
2956 case 'numberofarticles':
2957 $value = $pageLang->formatNum( SiteStats
::articles() );
2959 case 'numberoffiles':
2960 $value = $pageLang->formatNum( SiteStats
::images() );
2962 case 'numberofusers':
2963 $value = $pageLang->formatNum( SiteStats
::users() );
2965 case 'numberofactiveusers':
2966 $value = $pageLang->formatNum( SiteStats
::activeUsers() );
2968 case 'numberofpages':
2969 $value = $pageLang->formatNum( SiteStats
::pages() );
2971 case 'numberofadmins':
2972 $value = $pageLang->formatNum( SiteStats
::numberingroup( 'sysop' ) );
2974 case 'numberofedits':
2975 $value = $pageLang->formatNum( SiteStats
::edits() );
2977 case 'currenttimestamp':
2978 $value = wfTimestamp( TS_MW
, $ts );
2980 case 'localtimestamp':
2981 $value = MWTimestamp
::getLocalInstance( $ts )->format( 'YmdHis' );
2983 case 'currentversion':
2984 $value = SpecialVersion
::getVersion();
2987 return $this->svcOptions
->get( 'ArticlePath' );
2989 return $this->svcOptions
->get( 'Sitename' );
2991 return $this->svcOptions
->get( 'Server' );
2993 return $this->svcOptions
->get( 'ServerName' );
2995 return $this->svcOptions
->get( 'ScriptPath' );
2997 return $this->svcOptions
->get( 'StylePath' );
2998 case 'directionmark':
2999 return $pageLang->getDirMark();
3000 case 'contentlanguage':
3001 return $this->svcOptions
->get( 'LanguageCode' );
3002 case 'pagelanguage':
3003 $value = $pageLang->getCode();
3005 case 'cascadingsources':
3006 $value = CoreParserFunctions
::cascadingsources( $this );
3011 'ParserGetVariableValueSwitch',
3012 [ &$parser, &$this->mVarCache
, &$index, &$ret, &$frame ]
3019 $this->mVarCache
[$index] = $value;
3028 * @param int $mtts Max time-till-save; sets vary-revision-timestamp if result changes by then
3029 * @param string $variable Parser variable name
3032 private function getRevisionTimestampSubstring( $start, $len, $mtts, $variable ) {
3033 # Get the timezone-adjusted timestamp to be used for this revision
3034 $resNow = substr( $this->getRevisionTimestamp(), $start, $len );
3035 # Possibly set vary-revision if there is not yet an associated revision
3036 if ( !$this->getRevisionObject() ) {
3037 # Get the timezone-adjusted timestamp $mtts seconds in the future.
3038 # This future is relative to the current time and not that of the
3039 # parser options. The rendered timestamp can be compared to that
3040 # of the timestamp specified by the parser options.
3042 $this->contLang
->userAdjust( wfTimestamp( TS_MW
, time() +
$mtts ), '' ),
3047 if ( $resNow !== $resThen ) {
3048 # Inform the edit saving system that getting the canonical output after
3049 # revision insertion requires a parse that used an actual revision timestamp
3050 $this->setOutputFlag( 'vary-revision-timestamp', "$variable used" );
3058 * initialise the magic variables (like CURRENTMONTHNAME) and substitution modifiers
3062 public function initialiseVariables() {
3063 $variableIDs = $this->magicWordFactory
->getVariableIDs();
3064 $substIDs = $this->magicWordFactory
->getSubstIDs();
3066 $this->mVariables
= $this->magicWordFactory
->newArray( $variableIDs );
3067 $this->mSubstWords
= $this->magicWordFactory
->newArray( $substIDs );
3071 * Preprocess some wikitext and return the document tree.
3072 * This is the ghost of replace_variables().
3074 * @param string $text The text to parse
3075 * @param int $flags Bitwise combination of:
3076 * - self::PTD_FOR_INCLUSION: Handle "<noinclude>" and "<includeonly>" as if the text is being
3077 * included. Default is to assume a direct page view.
3079 * The generated DOM tree must depend only on the input text and the flags.
3080 * The DOM tree must be the same in OT_HTML and OT_WIKI mode, to avoid a regression of T6899.
3082 * Any flag added to the $flags parameter here, or any other parameter liable to cause a
3083 * change in the DOM tree for a given text, must be passed through the section identifier
3084 * in the section edit link and thus back to extractSections().
3086 * The output of this function is currently only cached in process memory, but a persistent
3087 * cache may be implemented at a later date which takes further advantage of these strict
3088 * dependency requirements.
3092 public function preprocessToDom( $text, $flags = 0 ) {
3093 $dom = $this->getPreprocessor()->preprocessToObj( $text, $flags );
3098 * Return a three-element array: leading whitespace, string contents, trailing whitespace
3104 public static function splitWhitespace( $s ) {
3105 $ltrimmed = ltrim( $s );
3106 $w1 = substr( $s, 0, strlen( $s ) - strlen( $ltrimmed ) );
3107 $trimmed = rtrim( $ltrimmed );
3108 $diff = strlen( $ltrimmed ) - strlen( $trimmed );
3110 $w2 = substr( $ltrimmed, -$diff );
3114 return [ $w1, $trimmed, $w2 ];
3118 * Replace magic variables, templates, and template arguments
3119 * with the appropriate text. Templates are substituted recursively,
3120 * taking care to avoid infinite loops.
3122 * Note that the substitution depends on value of $mOutputType:
3123 * self::OT_WIKI: only {{subst:}} templates
3124 * self::OT_PREPROCESS: templates but not extension tags
3125 * self::OT_HTML: all templates and extension tags
3127 * @param string $text The text to transform
3128 * @param false|PPFrame|array $frame Object describing the arguments passed to the
3129 * template. Arguments may also be provided as an associative array, as
3130 * was the usual case before MW1.12. Providing arguments this way may be
3131 * useful for extensions wishing to perform variable replacement
3133 * @param bool $argsOnly Only do argument (triple-brace) expansion, not
3134 * double-brace expansion.
3137 public function replaceVariables( $text, $frame = false, $argsOnly = false ) {
3138 # Is there any text? Also, Prevent too big inclusions!
3139 $textSize = strlen( $text );
3140 if ( $textSize < 1 ||
$textSize > $this->mOptions
->getMaxIncludeSize() ) {
3144 if ( $frame === false ) {
3145 $frame = $this->getPreprocessor()->newFrame();
3146 } elseif ( !( $frame instanceof PPFrame
) ) {
3147 $this->logger
->debug(
3148 __METHOD__
. " called using plain parameters instead of " .
3149 "a PPFrame instance. Creating custom frame."
3151 $frame = $this->getPreprocessor()->newCustomFrame( $frame );
3154 $dom = $this->preprocessToDom( $text );
3155 $flags = $argsOnly ? PPFrame
::NO_TEMPLATES
: 0;
3156 $text = $frame->expand( $dom, $flags );
3162 * Clean up argument array - refactored in 1.9 so parserfunctions can use it, too.
3164 * @param array $args
3168 public static function createAssocArgs( $args ) {
3171 foreach ( $args as $arg ) {
3172 $eqpos = strpos( $arg, '=' );
3173 if ( $eqpos === false ) {
3174 $assocArgs[$index++
] = $arg;
3176 $name = trim( substr( $arg, 0, $eqpos ) );
3177 $value = trim( substr( $arg, $eqpos +
1 ) );
3178 if ( $value === false ) {
3181 if ( $name !== false ) {
3182 $assocArgs[$name] = $value;
3191 * Warn the user when a parser limitation is reached
3192 * Will warn at most once the user per limitation type
3194 * The results are shown during preview and run through the Parser (See EditPage.php)
3196 * @param string $limitationType Should be one of:
3197 * 'expensive-parserfunction' (corresponding messages:
3198 * 'expensive-parserfunction-warning',
3199 * 'expensive-parserfunction-category')
3200 * 'post-expand-template-argument' (corresponding messages:
3201 * 'post-expand-template-argument-warning',
3202 * 'post-expand-template-argument-category')
3203 * 'post-expand-template-inclusion' (corresponding messages:
3204 * 'post-expand-template-inclusion-warning',
3205 * 'post-expand-template-inclusion-category')
3206 * 'node-count-exceeded' (corresponding messages:
3207 * 'node-count-exceeded-warning',
3208 * 'node-count-exceeded-category')
3209 * 'expansion-depth-exceeded' (corresponding messages:
3210 * 'expansion-depth-exceeded-warning',
3211 * 'expansion-depth-exceeded-category')
3212 * @param string|int|null $current Current value
3213 * @param string|int|null $max Maximum allowed, when an explicit limit has been
3214 * exceeded, provide the values (optional)
3216 public function limitationWarn( $limitationType, $current = '', $max = '' ) {
3217 # does no harm if $current and $max are present but are unnecessary for the message
3218 # Not doing ->inLanguage( $this->mOptions->getUserLangObj() ), since this is shown
3219 # only during preview, and that would split the parser cache unnecessarily.
3220 $warning = wfMessage( "$limitationType-warning" )->numParams( $current, $max )
3222 $this->mOutput
->addWarning( $warning );
3223 $this->addTrackingCategory( "$limitationType-category" );
3227 * Return the text of a template, after recursively
3228 * replacing any variables or templates within the template.
3230 * @param array $piece The parts of the template
3231 * $piece['title']: the title, i.e. the part before the |
3232 * $piece['parts']: the parameter array
3233 * $piece['lineStart']: whether the brace was at the start of a line
3234 * @param PPFrame $frame The current frame, contains template arguments
3236 * @return string|array The text of the template
3238 public function braceSubstitution( $piece, $frame ) {
3241 // $text has been filled
3243 // wiki markup in $text should be escaped
3245 // $text is HTML, armour it against wikitext transformation
3247 // Force interwiki transclusion to be done in raw mode not rendered
3248 $forceRawInterwiki = false;
3249 // $text is a DOM node needing expansion in a child frame
3250 $isChildObj = false;
3251 // $text is a DOM node needing expansion in the current frame
3252 $isLocalObj = false;
3254 # Title object, where $text came from
3257 # $part1 is the bit before the first |, and must contain only title characters.
3258 # Various prefixes will be stripped from it later.
3259 $titleWithSpaces = $frame->expand( $piece['title'] );
3260 $part1 = trim( $titleWithSpaces );
3263 # Original title text preserved for various purposes
3264 $originalTitle = $part1;
3266 # $args is a list of argument nodes, starting from index 0, not including $part1
3267 # @todo FIXME: If piece['parts'] is null then the call to getLength()
3268 # below won't work b/c this $args isn't an object
3269 $args = ( $piece['parts'] == null ) ?
[] : $piece['parts'];
3271 $profileSection = null; // profile templates
3275 $substMatch = $this->mSubstWords
->matchStartAndRemove( $part1 );
3277 # Possibilities for substMatch: "subst", "safesubst" or FALSE
3278 # Decide whether to expand template or keep wikitext as-is.
3279 if ( $this->ot
['wiki'] ) {
3280 if ( $substMatch === false ) {
3281 $literal = true; # literal when in PST with no prefix
3283 $literal = false; # expand when in PST with subst: or safesubst:
3286 if ( $substMatch == 'subst' ) {
3287 $literal = true; # literal when not in PST with plain subst:
3289 $literal = false; # expand when not in PST with safesubst: or no prefix
3293 $text = $frame->virtualBracketedImplode( '{{', '|', '}}', $titleWithSpaces, $args );
3300 if ( !$found && $args->getLength() == 0 ) {
3301 $id = $this->mVariables
->matchStartToEnd( $part1 );
3302 if ( $id !== false ) {
3303 $text = $this->getVariableValue( $id, $frame );
3304 if ( $this->magicWordFactory
->getCacheTTL( $id ) > -1 ) {
3305 $this->mOutput
->updateCacheExpiry(
3306 $this->magicWordFactory
->getCacheTTL( $id ) );
3312 # MSG, MSGNW and RAW
3315 $mwMsgnw = $this->magicWordFactory
->get( 'msgnw' );
3316 if ( $mwMsgnw->matchStartAndRemove( $part1 ) ) {
3319 # Remove obsolete MSG:
3320 $mwMsg = $this->magicWordFactory
->get( 'msg' );
3321 $mwMsg->matchStartAndRemove( $part1 );
3325 $mwRaw = $this->magicWordFactory
->get( 'raw' );
3326 if ( $mwRaw->matchStartAndRemove( $part1 ) ) {
3327 $forceRawInterwiki = true;
3333 $colonPos = strpos( $part1, ':' );
3334 if ( $colonPos !== false ) {
3335 $func = substr( $part1, 0, $colonPos );
3336 $funcArgs = [ trim( substr( $part1, $colonPos +
1 ) ) ];
3337 $argsLength = $args->getLength();
3338 for ( $i = 0; $i < $argsLength; $i++
) {
3339 $funcArgs[] = $args->item( $i );
3342 $result = $this->callParserFunction( $frame, $func, $funcArgs );
3344 // Extract any forwarded flags
3345 if ( isset( $result['title'] ) ) {
3346 $title = $result['title'];
3348 if ( isset( $result['found'] ) ) {
3349 $found = $result['found'];
3351 if ( array_key_exists( 'text', $result ) ) {
3353 $text = $result['text'];
3355 if ( isset( $result['nowiki'] ) ) {
3356 $nowiki = $result['nowiki'];
3358 if ( isset( $result['isHTML'] ) ) {
3359 $isHTML = $result['isHTML'];
3361 if ( isset( $result['forceRawInterwiki'] ) ) {
3362 $forceRawInterwiki = $result['forceRawInterwiki'];
3364 if ( isset( $result['isChildObj'] ) ) {
3365 $isChildObj = $result['isChildObj'];
3367 if ( isset( $result['isLocalObj'] ) ) {
3368 $isLocalObj = $result['isLocalObj'];
3373 # Finish mangling title and then check for loops.
3374 # Set $title to a Title object and $titleText to the PDBK
3377 # Split the title into page and subpage
3379 $relative = $this->maybeDoSubpageLink( $part1, $subpage );
3380 if ( $part1 !== $relative ) {
3382 $ns = $this->mTitle
->getNamespace();
3384 $title = Title
::newFromText( $part1, $ns );
3386 $titleText = $title->getPrefixedText();
3387 # Check for language variants if the template is not found
3388 if ( $this->getTargetLanguage()->hasVariants() && $title->getArticleID() == 0 ) {
3389 $this->getTargetLanguage()->findVariantLink( $part1, $title, true );
3391 # Do recursion depth check
3392 $limit = $this->mOptions
->getMaxTemplateDepth();
3393 if ( $frame->depth
>= $limit ) {
3395 $text = '<span class="error">'
3396 . wfMessage( 'parser-template-recursion-depth-warning' )
3397 ->numParams( $limit )->inContentLanguage()->text()
3403 # Load from database
3404 if ( !$found && $title ) {
3405 $profileSection = $this->mProfiler
->scopedProfileIn( $title->getPrefixedDBkey() );
3406 if ( !$title->isExternal() ) {
3407 if ( $title->isSpecialPage()
3408 && $this->mOptions
->getAllowSpecialInclusion()
3409 && $this->ot
['html']
3411 $specialPage = $this->specialPageFactory
->getPage( $title->getDBkey() );
3412 // Pass the template arguments as URL parameters.
3413 // "uselang" will have no effect since the Language object
3414 // is forced to the one defined in ParserOptions.
3416 $argsLength = $args->getLength();
3417 for ( $i = 0; $i < $argsLength; $i++
) {
3418 $bits = $args->item( $i )->splitArg();
3419 if ( strval( $bits['index'] ) === '' ) {
3420 $name = trim( $frame->expand( $bits['name'], PPFrame
::STRIP_COMMENTS
) );
3421 $value = trim( $frame->expand( $bits['value'] ) );
3422 $pageArgs[$name] = $value;
3426 // Create a new context to execute the special page
3427 $context = new RequestContext
;
3428 $context->setTitle( $title );
3429 $context->setRequest( new FauxRequest( $pageArgs ) );
3430 if ( $specialPage && $specialPage->maxIncludeCacheTime() === 0 ) {
3431 $context->setUser( $this->getUser() );
3433 // If this page is cached, then we better not be per user.
3434 $context->setUser( User
::newFromName( '127.0.0.1', false ) );
3436 $context->setLanguage( $this->mOptions
->getUserLangObj() );
3437 $ret = $this->specialPageFactory
->capturePath( $title, $context, $this->getLinkRenderer() );
3439 $text = $context->getOutput()->getHTML();
3440 $this->mOutput
->addOutputPageMetadata( $context->getOutput() );
3443 if ( $specialPage && $specialPage->maxIncludeCacheTime() !== false ) {
3444 $this->mOutput
->updateRuntimeAdaptiveExpiry(
3445 $specialPage->maxIncludeCacheTime()
3449 } elseif ( $this->nsInfo
->isNonincludable( $title->getNamespace() ) ) {
3450 $found = false; # access denied
3451 $this->logger
->debug(
3453 ": template inclusion denied for " . $title->getPrefixedDBkey()
3456 list( $text, $title ) = $this->getTemplateDom( $title );
3457 if ( $text !== false ) {
3463 # If the title is valid but undisplayable, make a link to it
3464 if ( !$found && ( $this->ot
['html'] ||
$this->ot
['pre'] ) ) {
3465 $text = "[[:$titleText]]";
3468 } elseif ( $title->isTrans() ) {
3469 # Interwiki transclusion
3470 if ( $this->ot
['html'] && !$forceRawInterwiki ) {
3471 $text = $this->interwikiTransclude( $title, 'render' );
3474 $text = $this->interwikiTransclude( $title, 'raw' );
3475 # Preprocess it like a template
3476 $text = $this->preprocessToDom( $text, self
::PTD_FOR_INCLUSION
);
3482 # Do infinite loop check
3483 # This has to be done after redirect resolution to avoid infinite loops via redirects
3484 if ( !$frame->loopCheck( $title ) ) {
3486 $text = '<span class="error">'
3487 . wfMessage( 'parser-template-loop-warning', $titleText )->inContentLanguage()->text()
3489 $this->addTrackingCategory( 'template-loop-category' );
3490 $this->mOutput
->addWarning( wfMessage( 'template-loop-warning',
3491 wfEscapeWikiText( $titleText ) )->text() );
3492 $this->logger
->debug( __METHOD__
. ": template loop broken at '$titleText'" );
3496 # If we haven't found text to substitute by now, we're done
3497 # Recover the source wikitext and return it
3499 $text = $frame->virtualBracketedImplode( '{{', '|', '}}', $titleWithSpaces, $args );
3500 if ( $profileSection ) {
3501 $this->mProfiler
->scopedProfileOut( $profileSection );
3503 return [ 'object' => $text ];
3506 # Expand DOM-style return values in a child frame
3507 if ( $isChildObj ) {
3508 # Clean up argument array
3509 $newFrame = $frame->newChild( $args, $title );
3512 $text = $newFrame->expand( $text, PPFrame
::RECOVER_ORIG
);
3513 } elseif ( $titleText !== false && $newFrame->isEmpty() ) {
3514 # Expansion is eligible for the empty-frame cache
3515 $text = $newFrame->cachedExpand( $titleText, $text );
3517 # Uncached expansion
3518 $text = $newFrame->expand( $text );
3521 if ( $isLocalObj && $nowiki ) {
3522 $text = $frame->expand( $text, PPFrame
::RECOVER_ORIG
);
3523 $isLocalObj = false;
3526 if ( $profileSection ) {
3527 $this->mProfiler
->scopedProfileOut( $profileSection );
3530 # Replace raw HTML by a placeholder
3532 $text = $this->insertStripItem( $text );
3533 } elseif ( $nowiki && ( $this->ot
['html'] ||
$this->ot
['pre'] ) ) {
3534 # Escape nowiki-style return values
3535 $text = wfEscapeWikiText( $text );
3536 } elseif ( is_string( $text )
3537 && !$piece['lineStart']
3538 && preg_match( '/^(?:{\\||:|;|#|\*)/', $text )
3540 # T2529: if the template begins with a table or block-level
3541 # element, it should be treated as beginning a new line.
3542 # This behavior is somewhat controversial.
3543 $text = "\n" . $text;
3546 if ( is_string( $text ) && !$this->incrementIncludeSize( 'post-expand', strlen( $text ) ) ) {
3547 # Error, oversize inclusion
3548 if ( $titleText !== false ) {
3549 # Make a working, properly escaped link if possible (T25588)
3550 $text = "[[:$titleText]]";
3552 # This will probably not be a working link, but at least it may
3553 # provide some hint of where the problem is
3554 preg_replace( '/^:/', '', $originalTitle );
3555 $text = "[[:$originalTitle]]";
3557 $text .= $this->insertStripItem( '<!-- WARNING: template omitted, '
3558 . 'post-expand include size too large -->' );
3559 $this->limitationWarn( 'post-expand-template-inclusion' );
3562 if ( $isLocalObj ) {
3563 $ret = [ 'object' => $text ];
3565 $ret = [ 'text' => $text ];
3572 * Call a parser function and return an array with text and flags.
3574 * The returned array will always contain a boolean 'found', indicating
3575 * whether the parser function was found or not. It may also contain the
3577 * text: string|object, resulting wikitext or PP DOM object
3578 * isHTML: bool, $text is HTML, armour it against wikitext transformation
3579 * isChildObj: bool, $text is a DOM node needing expansion in a child frame
3580 * isLocalObj: bool, $text is a DOM node needing expansion in the current frame
3581 * nowiki: bool, wiki markup in $text should be escaped
3584 * @param PPFrame $frame The current frame, contains template arguments
3585 * @param string $function Function name
3586 * @param array $args Arguments to the function
3587 * @throws MWException
3590 public function callParserFunction( $frame, $function, array $args = [] ) {
3591 # Case sensitive functions
3592 if ( isset( $this->mFunctionSynonyms
[1][$function] ) ) {
3593 $function = $this->mFunctionSynonyms
[1][$function];
3595 # Case insensitive functions
3596 $function = $this->contLang
->lc( $function );
3597 if ( isset( $this->mFunctionSynonyms
[0][$function] ) ) {
3598 $function = $this->mFunctionSynonyms
[0][$function];
3600 return [ 'found' => false ];
3604 list( $callback, $flags ) = $this->mFunctionHooks
[$function];
3606 // Avoid PHP 7.1 warning from passing $this by reference
3609 $allArgs = [ &$parser ];
3610 if ( $flags & self
::SFH_OBJECT_ARGS
) {
3611 # Convert arguments to PPNodes and collect for appending to $allArgs
3613 foreach ( $args as $k => $v ) {
3614 if ( $v instanceof PPNode ||
$k === 0 ) {
3617 $funcArgs[] = $this->mPreprocessor
->newPartNodeArray( [ $k => $v ] )->item( 0 );
3621 # Add a frame parameter, and pass the arguments as an array
3622 $allArgs[] = $frame;
3623 $allArgs[] = $funcArgs;
3625 # Convert arguments to plain text and append to $allArgs
3626 foreach ( $args as $k => $v ) {
3627 if ( $v instanceof PPNode
) {
3628 $allArgs[] = trim( $frame->expand( $v ) );
3629 } elseif ( is_int( $k ) && $k >= 0 ) {
3630 $allArgs[] = trim( $v );
3632 $allArgs[] = trim( "$k=$v" );
3637 $result = $callback( ...$allArgs );
3639 # The interface for function hooks allows them to return a wikitext
3640 # string or an array containing the string and any flags. This mungs
3641 # things around to match what this method should return.
3642 if ( !is_array( $result ) ) {
3648 if ( isset( $result[0] ) && !isset( $result['text'] ) ) {
3649 $result['text'] = $result[0];
3651 unset( $result[0] );
3658 $preprocessFlags = 0;
3659 if ( isset( $result['noparse'] ) ) {
3660 $noparse = $result['noparse'];
3662 if ( isset( $result['preprocessFlags'] ) ) {
3663 $preprocessFlags = $result['preprocessFlags'];
3667 $result['text'] = $this->preprocessToDom( $result['text'], $preprocessFlags );
3668 $result['isChildObj'] = true;
3675 * Get the semi-parsed DOM representation of a template with a given title,
3676 * and its redirect destination title. Cached.
3678 * @param Title $title
3682 public function getTemplateDom( $title ) {
3683 $cacheTitle = $title;
3684 $titleText = $title->getPrefixedDBkey();
3686 if ( isset( $this->mTplRedirCache
[$titleText] ) ) {
3687 list( $ns, $dbk ) = $this->mTplRedirCache
[$titleText];
3688 $title = Title
::makeTitle( $ns, $dbk );
3689 $titleText = $title->getPrefixedDBkey();
3691 if ( isset( $this->mTplDomCache
[$titleText] ) ) {
3692 return [ $this->mTplDomCache
[$titleText], $title ];
3695 # Cache miss, go to the database
3696 list( $text, $title ) = $this->fetchTemplateAndTitle( $title );
3698 if ( $text === false ) {
3699 $this->mTplDomCache
[$titleText] = false;
3700 return [ false, $title ];
3703 $dom = $this->preprocessToDom( $text, self
::PTD_FOR_INCLUSION
);
3704 $this->mTplDomCache
[$titleText] = $dom;
3706 if ( !$title->equals( $cacheTitle ) ) {
3707 $this->mTplRedirCache
[$cacheTitle->getPrefixedDBkey()] =
3708 [ $title->getNamespace(), $title->getDBkey() ];
3711 return [ $dom, $title ];
3715 * Fetch the current revision of a given title. Note that the revision
3716 * (and even the title) may not exist in the database, so everything
3717 * contributing to the output of the parser should use this method
3718 * where possible, rather than getting the revisions themselves. This
3719 * method also caches its results, so using it benefits performance.
3722 * @param Title $title
3725 public function fetchCurrentRevisionOfTitle( $title ) {
3726 $cacheKey = $title->getPrefixedDBkey();
3727 if ( !$this->currentRevisionCache
) {
3728 $this->currentRevisionCache
= new MapCacheLRU( 100 );
3730 if ( !$this->currentRevisionCache
->has( $cacheKey ) ) {
3731 $this->currentRevisionCache
->set( $cacheKey,
3732 // Defaults to Parser::statelessFetchRevision()
3733 call_user_func( $this->mOptions
->getCurrentRevisionCallback(), $title, $this )
3736 return $this->currentRevisionCache
->get( $cacheKey );
3740 * @param Title $title
3744 public function isCurrentRevisionOfTitleCached( $title ) {
3746 $this->currentRevisionCache
&&
3747 $this->currentRevisionCache
->has( $title->getPrefixedText() )
3752 * Wrapper around Revision::newFromTitle to allow passing additional parameters
3753 * without passing them on to it.
3756 * @param Title $title
3757 * @param Parser|bool $parser
3758 * @return Revision|bool False if missing
3760 public static function statelessFetchRevision( Title
$title, $parser = false ) {
3761 $rev = Revision
::newKnownCurrent( wfGetDB( DB_REPLICA
), $title );
3767 * Fetch the unparsed text of a template and register a reference to it.
3768 * @param Title $title
3769 * @return array ( string or false, Title )
3771 public function fetchTemplateAndTitle( $title ) {
3772 // Defaults to Parser::statelessFetchTemplate()
3773 $templateCb = $this->mOptions
->getTemplateCallback();
3774 $stuff = call_user_func( $templateCb, $title, $this );
3775 $rev = $stuff['revision'] ??
null;
3776 $text = $stuff['text'];
3777 if ( is_string( $stuff['text'] ) ) {
3778 // We use U+007F DELETE to distinguish strip markers from regular text
3779 $text = strtr( $text, "\x7f", "?" );
3781 $finalTitle = $stuff['finalTitle'] ??
$title;
3782 foreach ( ( $stuff['deps'] ??
[] ) as $dep ) {
3783 $this->mOutput
->addTemplate( $dep['title'], $dep['page_id'], $dep['rev_id'] );
3784 if ( $dep['title']->equals( $this->getTitle() ) && $rev instanceof Revision
) {
3785 // Self-transclusion; final result may change based on the new page version
3786 $this->setOutputFlag( 'vary-revision-sha1', 'Self transclusion' );
3787 $this->getOutput()->setRevisionUsedSha1Base36( $rev->getSha1() );
3791 return [ $text, $finalTitle ];
3795 * Fetch the unparsed text of a template and register a reference to it.
3796 * @param Title $title
3797 * @return string|bool
3799 public function fetchTemplate( $title ) {
3800 return $this->fetchTemplateAndTitle( $title )[0];
3804 * Static function to get a template
3805 * Can be overridden via ParserOptions::setTemplateCallback().
3807 * @param Title $title
3808 * @param bool|Parser $parser
3812 public static function statelessFetchTemplate( $title, $parser = false ) {
3813 $text = $skip = false;
3814 $finalTitle = $title;
3818 # Loop to fetch the article, with up to 1 redirect
3819 for ( $i = 0; $i < 2 && is_object( $title ); $i++
) {
3820 # Give extensions a chance to select the revision instead
3821 $id = false; # Assume current
3822 Hooks
::run( 'BeforeParserFetchTemplateAndtitle',
3823 [ $parser, $title, &$skip, &$id ] );
3829 'page_id' => $title->getArticleID(),
3836 $rev = Revision
::newFromId( $id );
3837 } elseif ( $parser ) {
3838 $rev = $parser->fetchCurrentRevisionOfTitle( $title );
3840 $rev = Revision
::newFromTitle( $title );
3842 $rev_id = $rev ?
$rev->getId() : 0;
3843 # If there is no current revision, there is no page
3844 if ( $id === false && !$rev ) {
3845 $linkCache = MediaWikiServices
::getInstance()->getLinkCache();
3846 $linkCache->addBadLinkObj( $title );
3851 'page_id' => $title->getArticleID(),
3854 if ( $rev && !$title->equals( $rev->getTitle() ) ) {
3855 # We fetched a rev from a different title; register it too...
3857 'title' => $rev->getTitle(),
3858 'page_id' => $rev->getPage(),
3864 $content = $rev->getContent();
3865 $text = $content ?
$content->getWikitextForTransclusion() : null;
3867 Hooks
::run( 'ParserFetchTemplate',
3868 [ $parser, $title, $rev, &$text, &$deps ] );
3870 if ( $text === false ||
$text === null ) {
3874 } elseif ( $title->getNamespace() == NS_MEDIAWIKI
) {
3875 $message = wfMessage( MediaWikiServices
::getInstance()->getContentLanguage()->
3876 lcfirst( $title->getText() ) )->inContentLanguage();
3877 if ( !$message->exists() ) {
3881 $content = $message->content();
3882 $text = $message->plain();
3890 $finalTitle = $title;
3891 $title = $content->getRedirectTarget();
3896 'finalTitle' => $finalTitle,
3902 * Fetch a file and its title and register a reference to it.
3903 * If 'broken' is a key in $options then the file will appear as a broken thumbnail.
3904 * @param Title $title
3905 * @param array $options Array of options to RepoGroup::findFile
3906 * @return array ( File or false, Title of file )
3908 public function fetchFileAndTitle( $title, $options = [] ) {
3909 $file = $this->fetchFileNoRegister( $title, $options );
3911 $time = $file ?
$file->getTimestamp() : false;
3912 $sha1 = $file ?
$file->getSha1() : false;
3913 # Register the file as a dependency...
3914 $this->mOutput
->addImage( $title->getDBkey(), $time, $sha1 );
3915 if ( $file && !$title->equals( $file->getTitle() ) ) {
3916 # Update fetched file title
3917 $title = $file->getTitle();
3918 $this->mOutput
->addImage( $title->getDBkey(), $time, $sha1 );
3920 return [ $file, $title ];
3924 * Helper function for fetchFileAndTitle.
3926 * Also useful if you need to fetch a file but not use it yet,
3927 * for example to get the file's handler.
3929 * @param Title $title
3930 * @param array $options Array of options to RepoGroup::findFile
3933 protected function fetchFileNoRegister( $title, $options = [] ) {
3934 if ( isset( $options['broken'] ) ) {
3935 $file = false; // broken thumbnail forced by hook
3936 } elseif ( isset( $options['sha1'] ) ) { // get by (sha1,timestamp)
3937 $file = RepoGroup
::singleton()->findFileFromKey( $options['sha1'], $options );
3938 } else { // get by (name,timestamp)
3939 $file = MediaWikiServices
::getInstance()->getRepoGroup()->findFile( $title, $options );
3945 * Transclude an interwiki link.
3947 * @param Title $title
3948 * @param string $action Usually one of (raw, render)
3952 public function interwikiTransclude( $title, $action ) {
3953 if ( !$this->svcOptions
->get( 'EnableScaryTranscluding' ) ) {
3954 return wfMessage( 'scarytranscludedisabled' )->inContentLanguage()->text();
3957 $url = $title->getFullURL( [ 'action' => $action ] );
3958 if ( strlen( $url ) > 1024 ) {
3959 return wfMessage( 'scarytranscludetoolong' )->inContentLanguage()->text();
3962 $wikiId = $title->getTransWikiID(); // remote wiki ID or false
3964 $fname = __METHOD__
;
3965 $cache = MediaWikiServices
::getInstance()->getMainWANObjectCache();
3967 $data = $cache->getWithSetCallback(
3968 $cache->makeGlobalKey(
3969 'interwiki-transclude',
3970 ( $wikiId !== false ) ?
$wikiId : 'external',
3973 $this->svcOptions
->get( 'TranscludeCacheExpiry' ),
3974 function ( $oldValue, &$ttl ) use ( $url, $fname, $cache ) {
3975 $req = MWHttpRequest
::factory( $url, [], $fname );
3977 $status = $req->execute(); // Status object
3978 if ( !$status->isOK() ) {
3979 $ttl = $cache::TTL_UNCACHEABLE
;
3980 } elseif ( $req->getResponseHeader( 'X-Database-Lagged' ) !== null ) {
3981 $ttl = min( $cache::TTL_LAGGED
, $ttl );
3985 'text' => $status->isOK() ?
$req->getContent() : null,
3986 'code' => $req->getStatus()
3990 'checkKeys' => ( $wikiId !== false )
3991 ?
[ $cache->makeGlobalKey( 'interwiki-page', $wikiId, $title->getDBkey() ) ]
3993 'pcGroup' => 'interwiki-transclude:5',
3994 'pcTTL' => $cache::TTL_PROC_LONG
3998 if ( is_string( $data['text'] ) ) {
3999 $text = $data['text'];
4000 } elseif ( $data['code'] != 200 ) {
4001 // Though we failed to fetch the content, this status is useless.
4002 $text = wfMessage( 'scarytranscludefailed-httpstatus' )
4003 ->params( $url, $data['code'] )->inContentLanguage()->text();
4005 $text = wfMessage( 'scarytranscludefailed', $url )->inContentLanguage()->text();
4012 * Triple brace replacement -- used for template arguments
4015 * @param array $piece
4016 * @param PPFrame $frame
4020 public function argSubstitution( $piece, $frame ) {
4022 $parts = $piece['parts'];
4023 $nameWithSpaces = $frame->expand( $piece['title'] );
4024 $argName = trim( $nameWithSpaces );
4026 $text = $frame->getArgument( $argName );
4027 if ( $text === false && $parts->getLength() > 0
4028 && ( $this->ot
['html']
4030 ||
( $this->ot
['wiki'] && $frame->isTemplate() )
4033 # No match in frame, use the supplied default
4034 $object = $parts->item( 0 )->getChildren();
4036 if ( !$this->incrementIncludeSize( 'arg', strlen( $text ) ) ) {
4037 $error = '<!-- WARNING: argument omitted, expansion size too large -->';
4038 $this->limitationWarn( 'post-expand-template-argument' );
4041 if ( $text === false && $object === false ) {
4043 $object = $frame->virtualBracketedImplode( '{{{', '|', '}}}', $nameWithSpaces, $parts );
4045 if ( $error !== false ) {
4048 if ( $object !== false ) {
4049 $ret = [ 'object' => $object ];
4051 $ret = [ 'text' => $text ];
4058 * Return the text to be used for a given extension tag.
4059 * This is the ghost of strip().
4061 * @param array $params Associative array of parameters:
4062 * name PPNode for the tag name
4063 * attr PPNode for unparsed text where tag attributes are thought to be
4064 * attributes Optional associative array of parsed attributes
4065 * inner Contents of extension element
4066 * noClose Original text did not have a close tag
4067 * @param PPFrame $frame
4069 * @throws MWException
4072 public function extensionSubstitution( $params, $frame ) {
4073 static $errorStr = '<span class="error">';
4074 static $errorLen = 20;
4076 $name = $frame->expand( $params['name'] );
4077 if ( substr( $name, 0, $errorLen ) === $errorStr ) {
4078 // Probably expansion depth or node count exceeded. Just punt the
4083 $attrText = !isset( $params['attr'] ) ?
null : $frame->expand( $params['attr'] );
4084 if ( substr( $attrText, 0, $errorLen ) === $errorStr ) {
4089 // We can't safely check if the expansion for $content resulted in an
4090 // error, because the content could happen to be the error string
4092 $content = !isset( $params['inner'] ) ?
null : $frame->expand( $params['inner'] );
4094 $marker = self
::MARKER_PREFIX
. "-$name-"
4095 . sprintf( '%08X', $this->mMarkerIndex++
) . self
::MARKER_SUFFIX
;
4097 $isFunctionTag = isset( $this->mFunctionTagHooks
[strtolower( $name )] ) &&
4098 ( $this->ot
['html'] ||
$this->ot
['pre'] );
4099 if ( $isFunctionTag ) {
4100 $markerType = 'none';
4102 $markerType = 'general';
4104 if ( $this->ot
['html'] ||
$isFunctionTag ) {
4105 $name = strtolower( $name );
4106 $attributes = Sanitizer
::decodeTagAttributes( $attrText );
4107 if ( isset( $params['attributes'] ) ) {
4108 $attributes +
= $params['attributes'];
4111 if ( isset( $this->mTagHooks
[$name] ) ) {
4112 $output = call_user_func_array( $this->mTagHooks
[$name],
4113 [ $content, $attributes, $this, $frame ] );
4114 } elseif ( isset( $this->mFunctionTagHooks
[$name] ) ) {
4115 list( $callback, ) = $this->mFunctionTagHooks
[$name];
4117 // Avoid PHP 7.1 warning from passing $this by reference
4119 $output = call_user_func_array( $callback, [ &$parser, $frame, $content, $attributes ] );
4121 $output = '<span class="error">Invalid tag extension name: ' .
4122 htmlspecialchars( $name ) . '</span>';
4125 if ( is_array( $output ) ) {
4128 $output = $flags[0];
4129 if ( isset( $flags['markerType'] ) ) {
4130 $markerType = $flags['markerType'];
4134 if ( is_null( $attrText ) ) {
4137 if ( isset( $params['attributes'] ) ) {
4138 foreach ( $params['attributes'] as $attrName => $attrValue ) {
4139 $attrText .= ' ' . htmlspecialchars( $attrName ) . '="' .
4140 htmlspecialchars( $attrValue ) . '"';
4143 if ( $content === null ) {
4144 $output = "<$name$attrText/>";
4146 $close = is_null( $params['close'] ) ?
'' : $frame->expand( $params['close'] );
4147 if ( substr( $close, 0, $errorLen ) === $errorStr ) {
4151 $output = "<$name$attrText>$content$close";
4155 if ( $markerType === 'none' ) {
4157 } elseif ( $markerType === 'nowiki' ) {
4158 $this->mStripState
->addNoWiki( $marker, $output );
4159 } elseif ( $markerType === 'general' ) {
4160 $this->mStripState
->addGeneral( $marker, $output );
4162 throw new MWException( __METHOD__
. ': invalid marker type' );
4168 * Increment an include size counter
4170 * @param string $type The type of expansion
4171 * @param int $size The size of the text
4172 * @return bool False if this inclusion would take it over the maximum, true otherwise
4174 public function incrementIncludeSize( $type, $size ) {
4175 if ( $this->mIncludeSizes
[$type] +
$size > $this->mOptions
->getMaxIncludeSize() ) {
4178 $this->mIncludeSizes
[$type] +
= $size;
4184 * Increment the expensive function count
4186 * @return bool False if the limit has been exceeded
4188 public function incrementExpensiveFunctionCount() {
4189 $this->mExpensiveFunctionCount++
;
4190 return $this->mExpensiveFunctionCount
<= $this->mOptions
->getExpensiveParserFunctionLimit();
4194 * Strip double-underscore items like __NOGALLERY__ and __NOTOC__
4195 * Fills $this->mDoubleUnderscores, returns the modified text
4197 * @param string $text
4201 public function doDoubleUnderscore( $text ) {
4202 # The position of __TOC__ needs to be recorded
4203 $mw = $this->magicWordFactory
->get( 'toc' );
4204 if ( $mw->match( $text ) ) {
4205 $this->mShowToc
= true;
4206 $this->mForceTocPosition
= true;
4208 # Set a placeholder. At the end we'll fill it in with the TOC.
4209 $text = $mw->replace( '<!--MWTOC\'"-->', $text, 1 );
4211 # Only keep the first one.
4212 $text = $mw->replace( '', $text );
4215 # Now match and remove the rest of them
4216 $mwa = $this->magicWordFactory
->getDoubleUnderscoreArray();
4217 $this->mDoubleUnderscores
= $mwa->matchAndRemove( $text );
4219 if ( isset( $this->mDoubleUnderscores
['nogallery'] ) ) {
4220 $this->mOutput
->mNoGallery
= true;
4222 if ( isset( $this->mDoubleUnderscores
['notoc'] ) && !$this->mForceTocPosition
) {
4223 $this->mShowToc
= false;
4225 if ( isset( $this->mDoubleUnderscores
['hiddencat'] )
4226 && $this->mTitle
->getNamespace() == NS_CATEGORY
4228 $this->addTrackingCategory( 'hidden-category-category' );
4230 # (T10068) Allow control over whether robots index a page.
4231 # __INDEX__ always overrides __NOINDEX__, see T16899
4232 if ( isset( $this->mDoubleUnderscores
['noindex'] ) && $this->mTitle
->canUseNoindex() ) {
4233 $this->mOutput
->setIndexPolicy( 'noindex' );
4234 $this->addTrackingCategory( 'noindex-category' );
4236 if ( isset( $this->mDoubleUnderscores
['index'] ) && $this->mTitle
->canUseNoindex() ) {
4237 $this->mOutput
->setIndexPolicy( 'index' );
4238 $this->addTrackingCategory( 'index-category' );
4241 # Cache all double underscores in the database
4242 foreach ( $this->mDoubleUnderscores
as $key => $val ) {
4243 $this->mOutput
->setProperty( $key, '' );
4250 * @see ParserOutput::addTrackingCategory()
4251 * @param string $msg Message key
4252 * @return bool Whether the addition was successful
4254 public function addTrackingCategory( $msg ) {
4255 return $this->mOutput
->addTrackingCategory( $msg, $this->mTitle
);
4259 * This function accomplishes several tasks:
4260 * 1) Auto-number headings if that option is enabled
4261 * 2) Add an [edit] link to sections for users who have enabled the option and can edit the page
4262 * 3) Add a Table of contents on the top for users who have enabled the option
4263 * 4) Auto-anchor headings
4265 * It loops through all headlines, collects the necessary data, then splits up the
4266 * string and re-inserts the newly formatted headlines.
4268 * @param string $text
4269 * @param string $origText Original, untouched wikitext
4270 * @param bool $isMain
4271 * @return mixed|string
4274 public function formatHeadings( $text, $origText, $isMain = true ) {
4275 # Inhibit editsection links if requested in the page
4276 if ( isset( $this->mDoubleUnderscores
['noeditsection'] ) ) {
4277 $maybeShowEditLink = false;
4279 $maybeShowEditLink = true; /* Actual presence will depend on post-cache transforms */
4282 # Get all headlines for numbering them and adding funky stuff like [edit]
4283 # links - this is for later, but we need the number of headlines right now
4284 # NOTE: white space in headings have been trimmed in doHeadings. They shouldn't
4285 # be trimmed here since whitespace in HTML headings is significant.
4287 $numMatches = preg_match_all(
4288 '/<H(?P<level>[1-6])(?P<attrib>.*?>)(?P<header>[\s\S]*?)<\/H[1-6] *>/i',
4293 # if there are fewer than 4 headlines in the article, do not show TOC
4294 # unless it's been explicitly enabled.
4295 $enoughToc = $this->mShowToc
&&
4296 ( ( $numMatches >= 4 ) ||
$this->mForceTocPosition
);
4298 # Allow user to stipulate that a page should have a "new section"
4299 # link added via __NEWSECTIONLINK__
4300 if ( isset( $this->mDoubleUnderscores
['newsectionlink'] ) ) {
4301 $this->mOutput
->setNewSection( true );
4304 # Allow user to remove the "new section"
4305 # link via __NONEWSECTIONLINK__
4306 if ( isset( $this->mDoubleUnderscores
['nonewsectionlink'] ) ) {
4307 $this->mOutput
->hideNewSection( true );
4310 # if the string __FORCETOC__ (not case-sensitive) occurs in the HTML,
4311 # override above conditions and always show TOC above first header
4312 if ( isset( $this->mDoubleUnderscores
['forcetoc'] ) ) {
4313 $this->mShowToc
= true;
4321 # Ugh .. the TOC should have neat indentation levels which can be
4322 # passed to the skin functions. These are determined here
4326 $sublevelCount = [];
4332 $markerRegex = self
::MARKER_PREFIX
. "-h-(\d+)-" . self
::MARKER_SUFFIX
;
4333 $baseTitleText = $this->mTitle
->getPrefixedDBkey();
4334 $oldType = $this->mOutputType
;
4335 $this->setOutputType( self
::OT_WIKI
);
4336 $frame = $this->getPreprocessor()->newFrame();
4337 $root = $this->preprocessToDom( $origText );
4338 $node = $root->getFirstChild();
4343 $headlines = $numMatches !== false ?
$matches[3] : [];
4345 $maxTocLevel = $this->svcOptions
->get( 'MaxTocLevel' );
4346 foreach ( $headlines as $headline ) {
4347 $isTemplate = false;
4349 $sectionIndex = false;
4351 $markerMatches = [];
4352 if ( preg_match( "/^$markerRegex/", $headline, $markerMatches ) ) {
4353 $serial = $markerMatches[1];
4354 list( $titleText, $sectionIndex ) = $this->mHeadings
[$serial];
4355 $isTemplate = ( $titleText != $baseTitleText );
4356 $headline = preg_replace( "/^$markerRegex\\s*/", "", $headline );
4360 $prevlevel = $level;
4362 $level = $matches[1][$headlineCount];
4364 if ( $level > $prevlevel ) {
4365 # Increase TOC level
4367 $sublevelCount[$toclevel] = 0;
4368 if ( $toclevel < $maxTocLevel ) {
4369 $prevtoclevel = $toclevel;
4370 $toc .= Linker
::tocIndent();
4373 } elseif ( $level < $prevlevel && $toclevel > 1 ) {
4374 # Decrease TOC level, find level to jump to
4376 for ( $i = $toclevel; $i > 0; $i-- ) {
4377 if ( $levelCount[$i] == $level ) {
4378 # Found last matching level
4381 } elseif ( $levelCount[$i] < $level ) {
4382 # Found first matching level below current level
4390 if ( $toclevel < $maxTocLevel ) {
4391 if ( $prevtoclevel < $maxTocLevel ) {
4392 # Unindent only if the previous toc level was shown :p
4393 $toc .= Linker
::tocUnindent( $prevtoclevel - $toclevel );
4394 $prevtoclevel = $toclevel;
4396 $toc .= Linker
::tocLineEnd();
4400 # No change in level, end TOC line
4401 if ( $toclevel < $maxTocLevel ) {
4402 $toc .= Linker
::tocLineEnd();
4406 $levelCount[$toclevel] = $level;
4408 # count number of headlines for each level
4409 $sublevelCount[$toclevel]++
;
4411 for ( $i = 1; $i <= $toclevel; $i++
) {
4412 if ( !empty( $sublevelCount[$i] ) ) {
4416 $numbering .= $this->getTargetLanguage()->formatNum( $sublevelCount[$i] );
4421 # The safe header is a version of the header text safe to use for links
4423 # Remove link placeholders by the link text.
4424 # <!--LINK number-->
4426 # link text with suffix
4427 # Do this before unstrip since link text can contain strip markers
4428 $safeHeadline = $this->replaceLinkHoldersText( $headline );
4430 # Avoid insertion of weird stuff like <math> by expanding the relevant sections
4431 $safeHeadline = $this->mStripState
->unstripBoth( $safeHeadline );
4433 # Remove any <style> or <script> tags (T198618)
4434 $safeHeadline = preg_replace(
4435 '#<(style|script)(?: [^>]*[^>/])?>.*?</\1>#is',
4440 # Strip out HTML (first regex removes any tag not allowed)
4442 # * <sup> and <sub> (T10393)
4446 # * <span dir="rtl"> and <span dir="ltr"> (T37167)
4447 # * <s> and <strike> (T35715)
4448 # We strip any parameter from accepted tags (second regex), except dir="rtl|ltr" from <span>,
4449 # to allow setting directionality in toc items.
4450 $tocline = preg_replace(
4452 '#<(?!/?(span|sup|sub|bdi|i|b|s|strike)(?: [^>]*)?>).*?>#',
4453 '#<(/?(?:span(?: dir="(?:rtl|ltr)")?|sup|sub|bdi|i|b|s|strike))(?: .*?)?>#'
4459 # Strip '<span></span>', which is the result from the above if
4460 # <span id="foo"></span> is used to produce an additional anchor
4462 $tocline = str_replace( '<span></span>', '', $tocline );
4464 $tocline = trim( $tocline );
4466 # For the anchor, strip out HTML-y stuff period
4467 $safeHeadline = preg_replace( '/<.*?>/', '', $safeHeadline );
4468 $safeHeadline = Sanitizer
::normalizeSectionNameWhitespace( $safeHeadline );
4470 # Save headline for section edit hint before it's escaped
4471 $headlineHint = $safeHeadline;
4473 # Decode HTML entities
4474 $safeHeadline = Sanitizer
::decodeCharReferences( $safeHeadline );
4476 $safeHeadline = self
::normalizeSectionName( $safeHeadline );
4478 $fallbackHeadline = Sanitizer
::escapeIdForAttribute( $safeHeadline, Sanitizer
::ID_FALLBACK
);
4479 $linkAnchor = Sanitizer
::escapeIdForLink( $safeHeadline );
4480 $safeHeadline = Sanitizer
::escapeIdForAttribute( $safeHeadline, Sanitizer
::ID_PRIMARY
);
4481 if ( $fallbackHeadline === $safeHeadline ) {
4482 # No reason to have both (in fact, we can't)
4483 $fallbackHeadline = false;
4486 # HTML IDs must be case-insensitively unique for IE compatibility (T12721).
4487 # @todo FIXME: We may be changing them depending on the current locale.
4488 $arrayKey = strtolower( $safeHeadline );
4489 if ( $fallbackHeadline === false ) {
4490 $fallbackArrayKey = false;
4492 $fallbackArrayKey = strtolower( $fallbackHeadline );
4495 # Create the anchor for linking from the TOC to the section
4496 $anchor = $safeHeadline;
4497 $fallbackAnchor = $fallbackHeadline;
4498 if ( isset( $refers[$arrayKey] ) ) {
4499 // phpcs:ignore Generic.Formatting.DisallowMultipleStatements
4500 for ( $i = 2; isset( $refers["${arrayKey}_$i"] ); ++
$i );
4502 $linkAnchor .= "_$i";
4503 $refers["${arrayKey}_$i"] = true;
4505 $refers[$arrayKey] = true;
4507 if ( $fallbackHeadline !== false && isset( $refers[$fallbackArrayKey] ) ) {
4508 // phpcs:ignore Generic.Formatting.DisallowMultipleStatements
4509 for ( $i = 2; isset( $refers["${fallbackArrayKey}_$i"] ); ++
$i );
4510 $fallbackAnchor .= "_$i";
4511 $refers["${fallbackArrayKey}_$i"] = true;
4513 $refers[$fallbackArrayKey] = true;
4516 # Don't number the heading if it is the only one (looks silly)
4517 if ( count( $matches[3] ) > 1 && $this->mOptions
->getNumberHeadings() ) {
4518 # the two are different if the line contains a link
4519 $headline = Html
::element(
4521 [ 'class' => 'mw-headline-number' ],
4523 ) . ' ' . $headline;
4526 if ( $enoughToc && ( !isset( $maxTocLevel ) ||
$toclevel < $maxTocLevel ) ) {
4527 $toc .= Linker
::tocLine( $linkAnchor, $tocline,
4528 $numbering, $toclevel, ( $isTemplate ?
false : $sectionIndex ) );
4531 # Add the section to the section tree
4532 # Find the DOM node for this header
4533 $noOffset = ( $isTemplate ||
$sectionIndex === false );
4534 while ( $node && !$noOffset ) {
4535 if ( $node->getName() === 'h' ) {
4536 $bits = $node->splitHeading();
4537 if ( $bits['i'] == $sectionIndex ) {
4541 $byteOffset +
= mb_strlen( $this->mStripState
->unstripBoth(
4542 $frame->expand( $node, PPFrame
::RECOVER_ORIG
) ) );
4543 $node = $node->getNextSibling();
4546 'toclevel' => $toclevel,
4549 'number' => $numbering,
4550 'index' => ( $isTemplate ?
'T-' : '' ) . $sectionIndex,
4551 'fromtitle' => $titleText,
4552 'byteoffset' => ( $noOffset ?
null : $byteOffset ),
4553 'anchor' => $anchor,
4556 # give headline the correct <h#> tag
4557 if ( $maybeShowEditLink && $sectionIndex !== false ) {
4558 // Output edit section links as markers with styles that can be customized by skins
4559 if ( $isTemplate ) {
4560 # Put a T flag in the section identifier, to indicate to extractSections()
4561 # that sections inside <includeonly> should be counted.
4562 $editsectionPage = $titleText;
4563 $editsectionSection = "T-$sectionIndex";
4564 $editsectionContent = null;
4566 $editsectionPage = $this->mTitle
->getPrefixedText();
4567 $editsectionSection = $sectionIndex;
4568 $editsectionContent = $headlineHint;
4570 // We use a bit of pesudo-xml for editsection markers. The
4571 // language converter is run later on. Using a UNIQ style marker
4572 // leads to the converter screwing up the tokens when it
4573 // converts stuff. And trying to insert strip tags fails too. At
4574 // this point all real inputted tags have already been escaped,
4575 // so we don't have to worry about a user trying to input one of
4576 // these markers directly. We use a page and section attribute
4577 // to stop the language converter from converting these
4578 // important bits of data, but put the headline hint inside a
4579 // content block because the language converter is supposed to
4580 // be able to convert that piece of data.
4581 // Gets replaced with html in ParserOutput::getText
4582 $editlink = '<mw:editsection page="' . htmlspecialchars( $editsectionPage );
4583 $editlink .= '" section="' . htmlspecialchars( $editsectionSection ) . '"';
4584 if ( $editsectionContent !== null ) {
4585 $editlink .= '>' . $editsectionContent . '</mw:editsection>';
4592 $head[$headlineCount] = Linker
::makeHeadline( $level,
4593 $matches['attrib'][$headlineCount], $anchor, $headline,
4594 $editlink, $fallbackAnchor );
4599 $this->setOutputType( $oldType );
4601 # Never ever show TOC if no headers
4602 if ( $numVisible < 1 ) {
4607 if ( $prevtoclevel > 0 && $prevtoclevel < $maxTocLevel ) {
4608 $toc .= Linker
::tocUnindent( $prevtoclevel - 1 );
4610 $toc = Linker
::tocList( $toc, $this->mOptions
->getUserLangObj() );
4611 $this->mOutput
->setTOCHTML( $toc );
4612 $toc = self
::TOC_START
. $toc . self
::TOC_END
;
4616 $this->mOutput
->setSections( $tocraw );
4619 # split up and insert constructed headlines
4620 $blocks = preg_split( '/<H[1-6].*?>[\s\S]*?<\/H[1-6]>/i', $text );
4623 // build an array of document sections
4625 foreach ( $blocks as $block ) {
4626 // $head is zero-based, sections aren't.
4627 if ( empty( $head[$i - 1] ) ) {
4628 $sections[$i] = $block;
4630 $sections[$i] = $head[$i - 1] . $block;
4634 * Send a hook, one per section.
4635 * The idea here is to be able to make section-level DIVs, but to do so in a
4636 * lower-impact, more correct way than r50769
4639 * $section : the section number
4640 * &$sectionContent : ref to the content of the section
4641 * $maybeShowEditLinks : boolean describing whether this section has an edit link
4643 Hooks
::run( 'ParserSectionCreate', [ $this, $i, &$sections[$i], $maybeShowEditLink ] );
4648 if ( $enoughToc && $isMain && !$this->mForceTocPosition
) {
4649 // append the TOC at the beginning
4650 // Top anchor now in skin
4651 $sections[0] .= $toc . "\n";
4654 $full .= implode( '', $sections );
4656 if ( $this->mForceTocPosition
) {
4657 return str_replace( '<!--MWTOC\'"-->', $toc, $full );
4664 * Transform wiki markup when saving a page by doing "\r\n" -> "\n"
4665 * conversion, substituting signatures, {{subst:}} templates, etc.
4667 * @param string $text The text to transform
4668 * @param Title $title The Title object for the current article
4669 * @param User $user The User object describing the current user
4670 * @param ParserOptions $options Parsing options
4671 * @param bool $clearState Whether to clear the parser state first
4672 * @return string The altered wiki markup
4674 public function preSaveTransform( $text, Title
$title, User
$user,
4675 ParserOptions
$options, $clearState = true
4677 if ( $clearState ) {
4678 $magicScopeVariable = $this->lock();
4680 $this->startParse( $title, $options, self
::OT_WIKI
, $clearState );
4681 $this->setUser( $user );
4683 // Strip U+0000 NULL (T159174)
4684 $text = str_replace( "\000", '', $text );
4686 // We still normalize line endings for backwards-compatibility
4687 // with other code that just calls PST, but this should already
4688 // be handled in TextContent subclasses
4689 $text = TextContent
::normalizeLineEndings( $text );
4691 if ( $options->getPreSaveTransform() ) {
4692 $text = $this->pstPass2( $text, $user );
4694 $text = $this->mStripState
->unstripBoth( $text );
4696 $this->setUser( null ); # Reset
4702 * Pre-save transform helper function
4704 * @param string $text
4709 private function pstPass2( $text, $user ) {
4710 # Note: This is the timestamp saved as hardcoded wikitext to the database, we use
4711 # $this->contLang here in order to give everyone the same signature and use the default one
4712 # rather than the one selected in each user's preferences. (see also T14815)
4713 $ts = $this->mOptions
->getTimestamp();
4714 $timestamp = MWTimestamp
::getLocalInstance( $ts );
4715 $ts = $timestamp->format( 'YmdHis' );
4716 $tzMsg = $timestamp->getTimezoneMessage()->inContentLanguage()->text();
4718 $d = $this->contLang
->timeanddate( $ts, false, false ) . " ($tzMsg)";
4720 # Variable replacement
4721 # Because mOutputType is OT_WIKI, this will only process {{subst:xxx}} type tags
4722 $text = $this->replaceVariables( $text );
4724 # This works almost by chance, as the replaceVariables are done before the getUserSig(),
4725 # which may corrupt this parser instance via its wfMessage()->text() call-
4728 if ( strpos( $text, '~~~' ) !== false ) {
4729 $sigText = $this->getUserSig( $user );
4730 $text = strtr( $text, [
4732 '~~~~' => "$sigText $d",
4735 # The main two signature forms used above are time-sensitive
4736 $this->setOutputFlag( 'user-signature', 'User signature detected' );
4739 # Context links ("pipe tricks"): [[|name]] and [[name (context)|]]
4740 $tc = '[' . Title
::legalChars() . ']';
4741 $nc = '[ _0-9A-Za-z\x80-\xff-]'; # Namespaces can use non-ascii!
4743 // [[ns:page (context)|]]
4744 $p1 = "/\[\[(:?$nc+:|:|)($tc+?)( ?\\($tc+\\))\\|]]/";
4745 // [[ns:page(context)|]] (double-width brackets, added in r40257)
4746 $p4 = "/\[\[(:?$nc+:|:|)($tc+?)( ?($tc+))\\|]]/";
4747 // [[ns:page (context), context|]] (using either single or double-width comma)
4748 $p3 = "/\[\[(:?$nc+:|:|)($tc+?)( ?\\($tc+\\)|)((?:, |,)$tc+|)\\|]]/";
4749 // [[|page]] (reverse pipe trick: add context from page title)
4750 $p2 = "/\[\[\\|($tc+)]]/";
4752 # try $p1 first, to turn "[[A, B (C)|]]" into "[[A, B (C)|A, B]]"
4753 $text = preg_replace( $p1, '[[\\1\\2\\3|\\2]]', $text );
4754 $text = preg_replace( $p4, '[[\\1\\2\\3|\\2]]', $text );
4755 $text = preg_replace( $p3, '[[\\1\\2\\3\\4|\\2]]', $text );
4757 $t = $this->mTitle
->getText();
4759 if ( preg_match( "/^($nc+:|)$tc+?( \\($tc+\\))$/", $t, $m ) ) {
4760 $text = preg_replace( $p2, "[[$m[1]\\1$m[2]|\\1]]", $text );
4761 } elseif ( preg_match( "/^($nc+:|)$tc+?(, $tc+|)$/", $t, $m ) && "$m[1]$m[2]" != '' ) {
4762 $text = preg_replace( $p2, "[[$m[1]\\1$m[2]|\\1]]", $text );
4764 # if there's no context, don't bother duplicating the title
4765 $text = preg_replace( $p2, '[[\\1]]', $text );
4772 * Fetch the user's signature text, if any, and normalize to
4773 * validated, ready-to-insert wikitext.
4774 * If you have pre-fetched the nickname or the fancySig option, you can
4775 * specify them here to save a database query.
4776 * Do not reuse this parser instance after calling getUserSig(),
4777 * as it may have changed.
4779 * @param User &$user
4780 * @param string|bool $nickname Nickname to use or false to use user's default nickname
4781 * @param bool|null $fancySig whether the nicknname is the complete signature
4782 * or null to use default value
4785 public function getUserSig( &$user, $nickname = false, $fancySig = null ) {
4786 $username = $user->getName();
4788 # If not given, retrieve from the user object.
4789 if ( $nickname === false ) {
4790 $nickname = $user->getOption( 'nickname' );
4793 if ( is_null( $fancySig ) ) {
4794 $fancySig = $user->getBoolOption( 'fancysig' );
4797 $nickname = $nickname == null ?
$username : $nickname;
4799 if ( mb_strlen( $nickname ) > $this->svcOptions
->get( 'MaxSigChars' ) ) {
4800 $nickname = $username;
4801 $this->logger
->debug( __METHOD__
. ": $username has overlong signature." );
4802 } elseif ( $fancySig !== false ) {
4803 # Sig. might contain markup; validate this
4804 if ( $this->validateSig( $nickname ) !== false ) {
4805 # Validated; clean up (if needed) and return it
4806 return $this->cleanSig( $nickname, true );
4808 # Failed to validate; fall back to the default
4809 $nickname = $username;
4810 $this->logger
->debug( __METHOD__
. ": $username has bad XML tags in signature." );
4814 # Make sure nickname doesnt get a sig in a sig
4815 $nickname = self
::cleanSigInSig( $nickname );
4817 # If we're still here, make it a link to the user page
4818 $userText = wfEscapeWikiText( $username );
4819 $nickText = wfEscapeWikiText( $nickname );
4820 $msgName = $user->isAnon() ?
'signature-anon' : 'signature';
4822 return wfMessage( $msgName, $userText, $nickText )->inContentLanguage()
4823 ->title( $this->getTitle() )->text();
4827 * Check that the user's signature contains no bad XML
4829 * @param string $text
4830 * @return string|bool An expanded string, or false if invalid.
4832 public function validateSig( $text ) {
4833 return Xml
::isWellFormedXmlFragment( $text ) ?
$text : false;
4837 * Clean up signature text
4839 * 1) Strip 3, 4 or 5 tildes out of signatures @see cleanSigInSig
4840 * 2) Substitute all transclusions
4842 * @param string $text
4843 * @param bool $parsing Whether we're cleaning (preferences save) or parsing
4844 * @return string Signature text
4846 public function cleanSig( $text, $parsing = false ) {
4849 $magicScopeVariable = $this->lock();
4850 $this->startParse( $wgTitle, new ParserOptions
, self
::OT_PREPROCESS
, true );
4853 # Option to disable this feature
4854 if ( !$this->mOptions
->getCleanSignatures() ) {
4858 # @todo FIXME: Regex doesn't respect extension tags or nowiki
4859 # => Move this logic to braceSubstitution()
4860 $substWord = $this->magicWordFactory
->get( 'subst' );
4861 $substRegex = '/\{\{(?!(?:' . $substWord->getBaseRegex() . '))/x' . $substWord->getRegexCase();
4862 $substText = '{{' . $substWord->getSynonym( 0 );
4864 $text = preg_replace( $substRegex, $substText, $text );
4865 $text = self
::cleanSigInSig( $text );
4866 $dom = $this->preprocessToDom( $text );
4867 $frame = $this->getPreprocessor()->newFrame();
4868 $text = $frame->expand( $dom );
4871 $text = $this->mStripState
->unstripBoth( $text );
4878 * Strip 3, 4 or 5 tildes out of signatures.
4880 * @param string $text
4881 * @return string Signature text with /~{3,5}/ removed
4883 public static function cleanSigInSig( $text ) {
4884 $text = preg_replace( '/~{3,5}/', '', $text );
4889 * Set up some variables which are usually set up in parse()
4890 * so that an external function can call some class members with confidence
4892 * @param Title|null $title
4893 * @param ParserOptions $options
4894 * @param int $outputType
4895 * @param bool $clearState
4896 * @param int|null $revId
4898 public function startExternalParse( Title
$title = null, ParserOptions
$options,
4899 $outputType, $clearState = true, $revId = null
4901 $this->startParse( $title, $options, $outputType, $clearState );
4902 if ( $revId !== null ) {
4903 $this->mRevisionId
= $revId;
4908 * @param Title|null $title
4909 * @param ParserOptions $options
4910 * @param int $outputType
4911 * @param bool $clearState
4913 private function startParse( Title
$title = null, ParserOptions
$options,
4914 $outputType, $clearState = true
4916 $this->setTitle( $title );
4917 $this->mOptions
= $options;
4918 $this->setOutputType( $outputType );
4919 if ( $clearState ) {
4920 $this->clearState();
4925 * Wrapper for preprocess()
4927 * @param string $text The text to preprocess
4928 * @param ParserOptions $options
4929 * @param Title|null $title Title object or null to use $wgTitle
4932 public function transformMsg( $text, $options, $title = null ) {
4933 static $executing = false;
4935 # Guard against infinite recursion
4946 $text = $this->preprocess( $text, $title, $options );
4953 * Create an HTML-style tag, e.g. "<yourtag>special text</yourtag>"
4954 * The callback should have the following form:
4955 * function myParserHook( $text, $params, $parser, $frame ) { ... }
4957 * Transform and return $text. Use $parser for any required context, e.g. use
4958 * $parser->getTitle() and $parser->getOptions() not $wgTitle or $wgOut->mParserOptions
4960 * Hooks may return extended information by returning an array, of which the
4961 * first numbered element (index 0) must be the return string, and all other
4962 * entries are extracted into local variables within an internal function
4963 * in the Parser class.
4965 * This interface (introduced r61913) appears to be undocumented, but
4966 * 'markerType' is used by some core tag hooks to override which strip
4967 * array their results are placed in. **Use great caution if attempting
4968 * this interface, as it is not documented and injudicious use could smash
4969 * private variables.**
4971 * @param string $tag The tag to use, e.g. 'hook' for "<hook>"
4972 * @param callable $callback The callback function (and object) to use for the tag
4973 * @throws MWException
4974 * @return callable|null The old value of the mTagHooks array associated with the hook
4976 public function setHook( $tag, callable
$callback ) {
4977 $tag = strtolower( $tag );
4978 if ( preg_match( '/[<>\r\n]/', $tag, $m ) ) {
4979 throw new MWException( "Invalid character {$m[0]} in setHook('$tag', ...) call" );
4981 $oldVal = $this->mTagHooks
[$tag] ??
null;
4982 $this->mTagHooks
[$tag] = $callback;
4983 if ( !in_array( $tag, $this->mStripList
) ) {
4984 $this->mStripList
[] = $tag;
4991 * As setHook(), but letting the contents be parsed.
4993 * Transparent tag hooks are like regular XML-style tag hooks, except they
4994 * operate late in the transformation sequence, on HTML instead of wikitext.
4996 * This is probably obsoleted by things dealing with parser frames?
4997 * The only extension currently using it is geoserver.
5000 * @todo better document or deprecate this
5002 * @param string $tag The tag to use, e.g. 'hook' for "<hook>"
5003 * @param callable $callback The callback function (and object) to use for the tag
5004 * @throws MWException
5005 * @return callable|null The old value of the mTagHooks array associated with the hook
5007 public function setTransparentTagHook( $tag, callable
$callback ) {
5008 $tag = strtolower( $tag );
5009 if ( preg_match( '/[<>\r\n]/', $tag, $m ) ) {
5010 throw new MWException( "Invalid character {$m[0]} in setTransparentHook('$tag', ...) call" );
5012 $oldVal = $this->mTransparentTagHooks
[$tag] ??
null;
5013 $this->mTransparentTagHooks
[$tag] = $callback;
5019 * Remove all tag hooks
5021 public function clearTagHooks() {
5022 $this->mTagHooks
= [];
5023 $this->mFunctionTagHooks
= [];
5024 $this->mStripList
= $this->mDefaultStripList
;
5028 * Create a function, e.g. {{sum:1|2|3}}
5029 * The callback function should have the form:
5030 * function myParserFunction( &$parser, $arg1, $arg2, $arg3 ) { ... }
5032 * Or with Parser::SFH_OBJECT_ARGS:
5033 * function myParserFunction( $parser, $frame, $args ) { ... }
5035 * The callback may either return the text result of the function, or an array with the text
5036 * in element 0, and a number of flags in the other elements. The names of the flags are
5037 * specified in the keys. Valid flags are:
5038 * found The text returned is valid, stop processing the template. This
5040 * nowiki Wiki markup in the return value should be escaped
5041 * isHTML The returned text is HTML, armour it against wikitext transformation
5043 * @param string $id The magic word ID
5044 * @param callable $callback The callback function (and object) to use
5045 * @param int $flags A combination of the following flags:
5046 * Parser::SFH_NO_HASH No leading hash, i.e. {{plural:...}} instead of {{#if:...}}
5048 * Parser::SFH_OBJECT_ARGS Pass the template arguments as PPNode objects instead of text.
5049 * This allows for conditional expansion of the parse tree, allowing you to eliminate dead
5050 * branches and thus speed up parsing. It is also possible to analyse the parse tree of
5051 * the arguments, and to control the way they are expanded.
5053 * The $frame parameter is a PPFrame. This can be used to produce expanded text from the
5054 * arguments, for instance:
5055 * $text = isset( $args[0] ) ? $frame->expand( $args[0] ) : '';
5057 * For technical reasons, $args[0] is pre-expanded and will be a string. This may change in
5058 * future versions. Please call $frame->expand() on it anyway so that your code keeps
5059 * working if/when this is changed.
5061 * If you want whitespace to be trimmed from $args, you need to do it yourself, post-
5064 * Please read the documentation in includes/parser/Preprocessor.php for more information
5065 * about the methods available in PPFrame and PPNode.
5067 * @throws MWException
5068 * @return string|callable The old callback function for this name, if any
5070 public function setFunctionHook( $id, callable
$callback, $flags = 0 ) {
5071 $oldVal = isset( $this->mFunctionHooks
[$id] ) ?
$this->mFunctionHooks
[$id][0] : null;
5072 $this->mFunctionHooks
[$id] = [ $callback, $flags ];
5074 # Add to function cache
5075 $mw = $this->magicWordFactory
->get( $id );
5077 throw new MWException( __METHOD__
. '() expecting a magic word identifier.' );
5080 $synonyms = $mw->getSynonyms();
5081 $sensitive = intval( $mw->isCaseSensitive() );
5083 foreach ( $synonyms as $syn ) {
5085 if ( !$sensitive ) {
5086 $syn = $this->contLang
->lc( $syn );
5089 if ( !( $flags & self
::SFH_NO_HASH
) ) {
5092 # Remove trailing colon
5093 if ( substr( $syn, -1, 1 ) === ':' ) {
5094 $syn = substr( $syn, 0, -1 );
5096 $this->mFunctionSynonyms
[$sensitive][$syn] = $id;
5102 * Get all registered function hook identifiers
5106 public function getFunctionHooks() {
5107 $this->firstCallInit();
5108 return array_keys( $this->mFunctionHooks
);
5112 * Create a tag function, e.g. "<test>some stuff</test>".
5113 * Unlike tag hooks, tag functions are parsed at preprocessor level.
5114 * Unlike parser functions, their content is not preprocessed.
5115 * @param string $tag
5116 * @param callable $callback
5118 * @throws MWException
5121 public function setFunctionTagHook( $tag, callable
$callback, $flags ) {
5122 $tag = strtolower( $tag );
5123 if ( preg_match( '/[<>\r\n]/', $tag, $m ) ) {
5124 throw new MWException( "Invalid character {$m[0]} in setFunctionTagHook('$tag', ...) call" );
5126 $old = $this->mFunctionTagHooks
[$tag] ??
null;
5127 $this->mFunctionTagHooks
[$tag] = [ $callback, $flags ];
5129 if ( !in_array( $tag, $this->mStripList
) ) {
5130 $this->mStripList
[] = $tag;
5137 * Replace "<!--LINK-->" link placeholders with actual links, in the buffer
5138 * Placeholders created in Linker::link()
5140 * @param string &$text
5141 * @param int $options
5143 public function replaceLinkHolders( &$text, $options = 0 ) {
5144 $this->mLinkHolders
->replace( $text );
5148 * Replace "<!--LINK-->" link placeholders with plain text of links
5149 * (not HTML-formatted).
5151 * @param string $text
5154 public function replaceLinkHoldersText( $text ) {
5155 return $this->mLinkHolders
->replaceText( $text );
5159 * Renders an image gallery from a text with one line per image.
5160 * text labels may be given by using |-style alternative text. E.g.
5161 * Image:one.jpg|The number "1"
5162 * Image:tree.jpg|A tree
5163 * given as text will return the HTML of a gallery with two images,
5164 * labeled 'The number "1"' and
5167 * @param string $text
5168 * @param array $params
5169 * @return string HTML
5171 public function renderImageGallery( $text, $params ) {
5173 if ( isset( $params['mode'] ) ) {
5174 $mode = $params['mode'];
5178 $ig = ImageGalleryBase
::factory( $mode );
5179 } catch ( Exception
$e ) {
5180 // If invalid type set, fallback to default.
5181 $ig = ImageGalleryBase
::factory( false );
5184 $ig->setContextTitle( $this->mTitle
);
5185 $ig->setShowBytes( false );
5186 $ig->setShowDimensions( false );
5187 $ig->setShowFilename( false );
5188 $ig->setParser( $this );
5189 $ig->setHideBadImages();
5190 $ig->setAttributes( Sanitizer
::validateTagAttributes( $params, 'ul' ) );
5192 if ( isset( $params['showfilename'] ) ) {
5193 $ig->setShowFilename( true );
5195 $ig->setShowFilename( false );
5197 if ( isset( $params['caption'] ) ) {
5198 // NOTE: We aren't passing a frame here or below. Frame info
5199 // is currently opaque to Parsoid, which acts on OT_PREPROCESS.
5200 // See T107332#4030581
5201 $caption = $this->recursiveTagParse( $params['caption'] );
5202 $ig->setCaptionHtml( $caption );
5204 if ( isset( $params['perrow'] ) ) {
5205 $ig->setPerRow( $params['perrow'] );
5207 if ( isset( $params['widths'] ) ) {
5208 $ig->setWidths( $params['widths'] );
5210 if ( isset( $params['heights'] ) ) {
5211 $ig->setHeights( $params['heights'] );
5213 $ig->setAdditionalOptions( $params );
5215 // Avoid PHP 7.1 warning from passing $this by reference
5217 Hooks
::run( 'BeforeParserrenderImageGallery', [ &$parser, &$ig ] );
5219 $lines = StringUtils
::explode( "\n", $text );
5220 foreach ( $lines as $line ) {
5221 # match lines like these:
5222 # Image:someimage.jpg|This is some image
5224 preg_match( "/^([^|]+)(\\|(.*))?$/", $line, $matches );
5226 if ( count( $matches ) == 0 ) {
5230 if ( strpos( $matches[0], '%' ) !== false ) {
5231 $matches[1] = rawurldecode( $matches[1] );
5233 $title = Title
::newFromText( $matches[1], NS_FILE
);
5234 if ( is_null( $title ) ) {
5235 # Bogus title. Ignore these so we don't bomb out later.
5239 # We need to get what handler the file uses, to figure out parameters.
5240 # Note, a hook can overide the file name, and chose an entirely different
5241 # file (which potentially could be of a different type and have different handler).
5244 Hooks
::run( 'BeforeParserFetchFileAndTitle',
5245 [ $this, $title, &$options, &$descQuery ] );
5246 # Don't register it now, as TraditionalImageGallery does that later.
5247 $file = $this->fetchFileNoRegister( $title, $options );
5248 $handler = $file ?
$file->getHandler() : false;
5251 'img_alt' => 'gallery-internal-alt',
5252 'img_link' => 'gallery-internal-link',
5255 $paramMap +
= $handler->getParamMap();
5256 // We don't want people to specify per-image widths.
5257 // Additionally the width parameter would need special casing anyhow.
5258 unset( $paramMap['img_width'] );
5261 $mwArray = $this->magicWordFactory
->newArray( array_keys( $paramMap ) );
5266 $handlerOptions = [];
5267 if ( isset( $matches[3] ) ) {
5268 // look for an |alt= definition while trying not to break existing
5269 // captions with multiple pipes (|) in it, until a more sensible grammar
5270 // is defined for images in galleries
5272 // FIXME: Doing recursiveTagParse at this stage, and the trim before
5273 // splitting on '|' is a bit odd, and different from makeImage.
5274 $matches[3] = $this->recursiveTagParse( trim( $matches[3] ) );
5275 // Protect LanguageConverter markup
5276 $parameterMatches = StringUtils
::delimiterExplode(
5277 '-{', '}-', '|', $matches[3], true /* nested */
5280 foreach ( $parameterMatches as $parameterMatch ) {
5281 list( $magicName, $match ) = $mwArray->matchVariableStartToEnd( $parameterMatch );
5283 $paramName = $paramMap[$magicName];
5285 switch ( $paramName ) {
5286 case 'gallery-internal-alt':
5287 $alt = $this->stripAltText( $match, false );
5289 case 'gallery-internal-link':
5290 $linkValue = $this->stripAltText( $match, false );
5291 if ( preg_match( '/^-{R|(.*)}-$/', $linkValue ) ) {
5292 // Result of LanguageConverter::markNoConversion
5293 // invoked on an external link.
5294 $linkValue = substr( $linkValue, 4, -2 );
5296 list( $type, $target ) = $this->parseLinkParameter( $linkValue );
5297 if ( $type === 'link-url' ) {
5299 $this->mOutput
->addExternalLink( $target );
5300 } elseif ( $type === 'link-title' ) {
5301 $link = $target->getLinkURL();
5302 $this->mOutput
->addLink( $target );
5306 // Must be a handler specific parameter.
5307 if ( $handler->validateParam( $paramName, $match ) ) {
5308 $handlerOptions[$paramName] = $match;
5310 // Guess not, consider it as caption.
5311 $this->logger
->debug(
5312 "$parameterMatch failed parameter validation" );
5313 $label = $parameterMatch;
5319 $label = $parameterMatch;
5324 $ig->add( $title, $label, $alt, $link, $handlerOptions );
5326 $html = $ig->toHTML();
5327 Hooks
::run( 'AfterParserFetchFileAndTitle', [ $this, $ig, &$html ] );
5332 * @param MediaHandler $handler
5335 public function getImageParams( $handler ) {
5337 $handlerClass = get_class( $handler );
5341 if ( !isset( $this->mImageParams
[$handlerClass] ) ) {
5342 # Initialise static lists
5343 static $internalParamNames = [
5344 'horizAlign' => [ 'left', 'right', 'center', 'none' ],
5345 'vertAlign' => [ 'baseline', 'sub', 'super', 'top', 'text-top', 'middle',
5346 'bottom', 'text-bottom' ],
5347 'frame' => [ 'thumbnail', 'manualthumb', 'framed', 'frameless',
5348 'upright', 'border', 'link', 'alt', 'class' ],
5350 static $internalParamMap;
5351 if ( !$internalParamMap ) {
5352 $internalParamMap = [];
5353 foreach ( $internalParamNames as $type => $names ) {
5354 foreach ( $names as $name ) {
5355 // For grep: img_left, img_right, img_center, img_none,
5356 // img_baseline, img_sub, img_super, img_top, img_text_top, img_middle,
5357 // img_bottom, img_text_bottom,
5358 // img_thumbnail, img_manualthumb, img_framed, img_frameless, img_upright,
5359 // img_border, img_link, img_alt, img_class
5360 $magicName = str_replace( '-', '_', "img_$name" );
5361 $internalParamMap[$magicName] = [ $type, $name ];
5366 # Add handler params
5367 $paramMap = $internalParamMap;
5369 $handlerParamMap = $handler->getParamMap();
5370 foreach ( $handlerParamMap as $magic => $paramName ) {
5371 $paramMap[$magic] = [ 'handler', $paramName ];
5374 $this->mImageParams
[$handlerClass] = $paramMap;
5375 $this->mImageParamsMagicArray
[$handlerClass] =
5376 $this->magicWordFactory
->newArray( array_keys( $paramMap ) );
5378 return [ $this->mImageParams
[$handlerClass], $this->mImageParamsMagicArray
[$handlerClass] ];
5382 * Parse image options text and use it to make an image
5384 * @param Title $title
5385 * @param string $options
5386 * @param LinkHolderArray|bool $holders
5387 * @return string HTML
5389 public function makeImage( $title, $options, $holders = false ) {
5390 # Check if the options text is of the form "options|alt text"
5392 # * thumbnail make a thumbnail with enlarge-icon and caption, alignment depends on lang
5393 # * left no resizing, just left align. label is used for alt= only
5394 # * right same, but right aligned
5395 # * none same, but not aligned
5396 # * ___px scale to ___ pixels width, no aligning. e.g. use in taxobox
5397 # * center center the image
5398 # * frame Keep original image size, no magnify-button.
5399 # * framed Same as "frame"
5400 # * frameless like 'thumb' but without a frame. Keeps user preferences for width
5401 # * upright reduce width for upright images, rounded to full __0 px
5402 # * border draw a 1px border around the image
5403 # * alt Text for HTML alt attribute (defaults to empty)
5404 # * class Set a class for img node
5405 # * link Set the target of the image link. Can be external, interwiki, or local
5406 # vertical-align values (no % or length right now):
5416 # Protect LanguageConverter markup when splitting into parts
5417 $parts = StringUtils
::delimiterExplode(
5418 '-{', '}-', '|', $options, true /* allow nesting */
5421 # Give extensions a chance to select the file revision for us
5424 Hooks
::run( 'BeforeParserFetchFileAndTitle',
5425 [ $this, $title, &$options, &$descQuery ] );
5426 # Fetch and register the file (file title may be different via hooks)
5427 list( $file, $title ) = $this->fetchFileAndTitle( $title, $options );
5430 $handler = $file ?
$file->getHandler() : false;
5432 list( $paramMap, $mwArray ) = $this->getImageParams( $handler );
5435 $this->addTrackingCategory( 'broken-file-category' );
5438 # Process the input parameters
5440 $params = [ 'frame' => [], 'handler' => [],
5441 'horizAlign' => [], 'vertAlign' => [] ];
5442 $seenformat = false;
5443 foreach ( $parts as $part ) {
5444 $part = trim( $part );
5445 list( $magicName, $value ) = $mwArray->matchVariableStartToEnd( $part );
5447 if ( isset( $paramMap[$magicName] ) ) {
5448 list( $type, $paramName ) = $paramMap[$magicName];
5450 # Special case; width and height come in one variable together
5451 if ( $type === 'handler' && $paramName === 'width' ) {
5452 $parsedWidthParam = self
::parseWidthParam( $value );
5453 if ( isset( $parsedWidthParam['width'] ) ) {
5454 $width = $parsedWidthParam['width'];
5455 if ( $handler->validateParam( 'width', $width ) ) {
5456 $params[$type]['width'] = $width;
5460 if ( isset( $parsedWidthParam['height'] ) ) {
5461 $height = $parsedWidthParam['height'];
5462 if ( $handler->validateParam( 'height', $height ) ) {
5463 $params[$type]['height'] = $height;
5467 # else no validation -- T15436
5469 if ( $type === 'handler' ) {
5470 # Validate handler parameter
5471 $validated = $handler->validateParam( $paramName, $value );
5473 # Validate internal parameters
5474 switch ( $paramName ) {
5478 # @todo FIXME: Possibly check validity here for
5479 # manualthumb? downstream behavior seems odd with
5480 # missing manual thumbs.
5482 $value = $this->stripAltText( $value, $holders );
5485 list( $paramName, $value ) =
5486 $this->parseLinkParameter(
5487 $this->stripAltText( $value, $holders )
5491 if ( $paramName === 'no-link' ) {
5494 if ( ( $paramName === 'link-url' ) && $this->mOptions
->getExternalLinkTarget() ) {
5495 $params[$type]['link-target'] = $this->mOptions
->getExternalLinkTarget();
5502 // use first appearing option, discard others.
5503 $validated = !$seenformat;
5507 # Most other things appear to be empty or numeric...
5508 $validated = ( $value === false ||
is_numeric( trim( $value ) ) );
5513 $params[$type][$paramName] = $value;
5517 if ( !$validated ) {
5522 # Process alignment parameters
5523 if ( $params['horizAlign'] ) {
5524 $params['frame']['align'] = key( $params['horizAlign'] );
5526 if ( $params['vertAlign'] ) {
5527 $params['frame']['valign'] = key( $params['vertAlign'] );
5530 $params['frame']['caption'] = $caption;
5532 # Will the image be presented in a frame, with the caption below?
5533 $imageIsFramed = isset( $params['frame']['frame'] )
5534 ||
isset( $params['frame']['framed'] )
5535 ||
isset( $params['frame']['thumbnail'] )
5536 ||
isset( $params['frame']['manualthumb'] );
5538 # In the old days, [[Image:Foo|text...]] would set alt text. Later it
5539 # came to also set the caption, ordinary text after the image -- which
5540 # makes no sense, because that just repeats the text multiple times in
5541 # screen readers. It *also* came to set the title attribute.
5542 # Now that we have an alt attribute, we should not set the alt text to
5543 # equal the caption: that's worse than useless, it just repeats the
5544 # text. This is the framed/thumbnail case. If there's no caption, we
5545 # use the unnamed parameter for alt text as well, just for the time be-
5546 # ing, if the unnamed param is set and the alt param is not.
5547 # For the future, we need to figure out if we want to tweak this more,
5548 # e.g., introducing a title= parameter for the title; ignoring the un-
5549 # named parameter entirely for images without a caption; adding an ex-
5550 # plicit caption= parameter and preserving the old magic unnamed para-
5552 if ( $imageIsFramed ) { # Framed image
5553 if ( $caption === '' && !isset( $params['frame']['alt'] ) ) {
5554 # No caption or alt text, add the filename as the alt text so
5555 # that screen readers at least get some description of the image
5556 $params['frame']['alt'] = $title->getText();
5558 # Do not set $params['frame']['title'] because tooltips don't make sense
5560 } else { # Inline image
5561 if ( !isset( $params['frame']['alt'] ) ) {
5562 # No alt text, use the "caption" for the alt text
5563 if ( $caption !== '' ) {
5564 $params['frame']['alt'] = $this->stripAltText( $caption, $holders );
5566 # No caption, fall back to using the filename for the
5568 $params['frame']['alt'] = $title->getText();
5571 # Use the "caption" for the tooltip text
5572 $params['frame']['title'] = $this->stripAltText( $caption, $holders );
5574 $params['handler']['targetlang'] = $this->getTargetLanguage()->getCode();
5576 Hooks
::run( 'ParserMakeImageParams', [ $title, $file, &$params, $this ] );
5578 # Linker does the rest
5579 $time = $options['time'] ??
false;
5580 $ret = Linker
::makeImageLink( $this, $title, $file, $params['frame'], $params['handler'],
5581 $time, $descQuery, $this->mOptions
->getThumbSize() );
5583 # Give the handler a chance to modify the parser object
5585 $handler->parserTransformHook( $this, $file );
5592 * Parse the value of 'link' parameter in image syntax (`[[File:Foo.jpg|link=<value>]]`).
5594 * Adds an entry to appropriate link tables.
5597 * @param string $value
5598 * @return array of `[ type, target ]`, where:
5599 * - `type` is one of:
5600 * - `null`: Given value is not a valid link target, use default
5601 * - `'no-link'`: Given value is empty, do not generate a link
5602 * - `'link-url'`: Given value is a valid external link
5603 * - `'link-title'`: Given value is a valid internal link
5605 * - When `type` is `null` or `'no-link'`: `false`
5606 * - When `type` is `'link-url'`: URL string corresponding to given value
5607 * - When `type` is `'link-title'`: Title object corresponding to given value
5609 public function parseLinkParameter( $value ) {
5610 $chars = self
::EXT_LINK_URL_CLASS
;
5611 $addr = self
::EXT_LINK_ADDR
;
5612 $prots = $this->mUrlProtocols
;
5615 if ( $value === '' ) {
5617 } elseif ( preg_match( "/^((?i)$prots)/", $value ) ) {
5618 if ( preg_match( "/^((?i)$prots)$addr$chars*$/u", $value, $m ) ) {
5619 $this->mOutput
->addExternalLink( $value );
5624 $linkTitle = Title
::newFromText( $value );
5626 $this->mOutput
->addLink( $linkTitle );
5627 $type = 'link-title';
5628 $target = $linkTitle;
5631 return [ $type, $target ];
5635 * @param string $caption
5636 * @param LinkHolderArray|bool $holders
5637 * @return mixed|string
5639 protected function stripAltText( $caption, $holders ) {
5640 # Strip bad stuff out of the title (tooltip). We can't just use
5641 # replaceLinkHoldersText() here, because if this function is called
5642 # from replaceInternalLinks2(), mLinkHolders won't be up-to-date.
5644 $tooltip = $holders->replaceText( $caption );
5646 $tooltip = $this->replaceLinkHoldersText( $caption );
5649 # make sure there are no placeholders in thumbnail attributes
5650 # that are later expanded to html- so expand them now and
5652 $tooltip = $this->mStripState
->unstripBoth( $tooltip );
5653 # Compatibility hack! In HTML certain entity references not terminated
5654 # by a semicolon are decoded (but not if we're in an attribute; that's
5655 # how link URLs get away without properly escaping & in queries).
5656 # But wikitext has always required semicolon-termination of entities,
5657 # so encode & where needed to avoid decode of semicolon-less entities.
5659 # https://www.w3.org/TR/html5/syntax.html#named-character-references
5660 # T210437 discusses moving this workaround to Sanitizer::stripAllTags.
5661 $tooltip = preg_replace( "/
5662 & # 1. entity prefix
5663 (?= # 2. followed by:
5664 (?: # a. one of the legacy semicolon-less named entities
5665 A(?:Elig|MP|acute|circ|grave|ring|tilde|uml)|
5666 C(?:OPY|cedil)|E(?:TH|acute|circ|grave|uml)|
5667 GT|I(?:acute|circ|grave|uml)|LT|Ntilde|
5668 O(?:acute|circ|grave|slash|tilde|uml)|QUOT|REG|THORN|
5669 U(?:acute|circ|grave|uml)|Yacute|
5670 a(?:acute|c(?:irc|ute)|elig|grave|mp|ring|tilde|uml)|brvbar|
5671 c(?:cedil|edil|urren)|cent(?!erdot;)|copy(?!sr;)|deg|
5672 divide(?!ontimes;)|e(?:acute|circ|grave|th|uml)|
5673 frac(?:1(?:2|4)|34)|
5674 gt(?!c(?:c|ir)|dot|lPar|quest|r(?:a(?:pprox|rr)|dot|eq(?:less|qless)|less|sim);)|
5675 i(?:acute|circ|excl|grave|quest|uml)|laquo|
5676 lt(?!c(?:c|ir)|dot|hree|imes|larr|quest|r(?:Par|i(?:e|f|));)|
5677 m(?:acr|i(?:cro|ddot))|n(?:bsp|tilde)|
5678 not(?!in(?:E|dot|v(?:a|b|c)|)|ni(?:v(?:a|b|c)|);)|
5679 o(?:acute|circ|grave|rd(?:f|m)|slash|tilde|uml)|
5680 p(?:lusmn|ound)|para(?!llel;)|quot|r(?:aquo|eg)|
5681 s(?:ect|hy|up(?:1|2|3)|zlig)|thorn|times(?!b(?:ar|)|d;)|
5682 u(?:acute|circ|grave|ml|uml)|y(?:acute|en|uml)
5684 (?:[^;]|$)) # b. and not followed by a semicolon
5685 # S = study, for efficiency
5686 /Sx", '&', $tooltip );
5687 $tooltip = Sanitizer
::stripAllTags( $tooltip );
5693 * Set a flag in the output object indicating that the content is dynamic and
5694 * shouldn't be cached.
5695 * @deprecated since 1.28; use getOutput()->updateCacheExpiry()
5697 public function disableCache() {
5698 $this->logger
->debug( "Parser output marked as uncacheable." );
5699 if ( !$this->mOutput
) {
5700 throw new MWException( __METHOD__
.
5701 " can only be called when actually parsing something" );
5703 $this->mOutput
->updateCacheExpiry( 0 ); // new style, for consistency
5707 * Callback from the Sanitizer for expanding items found in HTML attribute
5708 * values, so they can be safely tested and escaped.
5710 * @param string &$text
5711 * @param bool|PPFrame $frame
5714 public function attributeStripCallback( &$text, $frame = false ) {
5715 $text = $this->replaceVariables( $text, $frame );
5716 $text = $this->mStripState
->unstripBoth( $text );
5725 public function getTags() {
5726 $this->firstCallInit();
5728 array_keys( $this->mTransparentTagHooks
),
5729 array_keys( $this->mTagHooks
),
5730 array_keys( $this->mFunctionTagHooks
)
5738 public function getFunctionSynonyms() {
5739 $this->firstCallInit();
5740 return $this->mFunctionSynonyms
;
5747 public function getUrlProtocols() {
5748 return $this->mUrlProtocols
;
5752 * Replace transparent tags in $text with the values given by the callbacks.
5754 * Transparent tag hooks are like regular XML-style tag hooks, except they
5755 * operate late in the transformation sequence, on HTML instead of wikitext.
5757 * @param string $text
5761 public function replaceTransparentTags( $text ) {
5763 $elements = array_keys( $this->mTransparentTagHooks
);
5764 $text = self
::extractTagsAndParams( $elements, $text, $matches );
5767 foreach ( $matches as $marker => $data ) {
5768 list( $element, $content, $params, $tag ) = $data;
5769 $tagName = strtolower( $element );
5770 if ( isset( $this->mTransparentTagHooks
[$tagName] ) ) {
5771 $output = call_user_func_array(
5772 $this->mTransparentTagHooks
[$tagName],
5773 [ $content, $params, $this ]
5778 $replacements[$marker] = $output;
5780 return strtr( $text, $replacements );
5784 * Break wikitext input into sections, and either pull or replace
5785 * some particular section's text.
5787 * External callers should use the getSection and replaceSection methods.
5789 * @param string $text Page wikitext
5790 * @param string|int $sectionId A section identifier string of the form:
5791 * "<flag1> - <flag2> - ... - <section number>"
5793 * Currently the only recognised flag is "T", which means the target section number
5794 * was derived during a template inclusion parse, in other words this is a template
5795 * section edit link. If no flags are given, it was an ordinary section edit link.
5796 * This flag is required to avoid a section numbering mismatch when a section is
5797 * enclosed by "<includeonly>" (T8563).
5799 * The section number 0 pulls the text before the first heading; other numbers will
5800 * pull the given section along with its lower-level subsections. If the section is
5801 * not found, $mode=get will return $newtext, and $mode=replace will return $text.
5803 * Section 0 is always considered to exist, even if it only contains the empty
5804 * string. If $text is the empty string and section 0 is replaced, $newText is
5807 * @param string $mode One of "get" or "replace"
5808 * @param string $newText Replacement text for section data.
5809 * @return string For "get", the extracted section text.
5810 * for "replace", the whole page with the section replaced.
5812 private function extractSections( $text, $sectionId, $mode, $newText = '' ) {
5813 global $wgTitle; # not generally used but removes an ugly failure mode
5815 $magicScopeVariable = $this->lock();
5816 $this->startParse( $wgTitle, new ParserOptions
, self
::OT_PLAIN
, true );
5818 $frame = $this->getPreprocessor()->newFrame();
5820 # Process section extraction flags
5822 $sectionParts = explode( '-', $sectionId );
5823 $sectionIndex = array_pop( $sectionParts );
5824 foreach ( $sectionParts as $part ) {
5825 if ( $part === 'T' ) {
5826 $flags |
= self
::PTD_FOR_INCLUSION
;
5830 # Check for empty input
5831 if ( strval( $text ) === '' ) {
5832 # Only sections 0 and T-0 exist in an empty document
5833 if ( $sectionIndex == 0 ) {
5834 if ( $mode === 'get' ) {
5840 if ( $mode === 'get' ) {
5848 # Preprocess the text
5849 $root = $this->preprocessToDom( $text, $flags );
5851 # <h> nodes indicate section breaks
5852 # They can only occur at the top level, so we can find them by iterating the root's children
5853 $node = $root->getFirstChild();
5855 # Find the target section
5856 if ( $sectionIndex == 0 ) {
5857 # Section zero doesn't nest, level=big
5858 $targetLevel = 1000;
5861 if ( $node->getName() === 'h' ) {
5862 $bits = $node->splitHeading();
5863 if ( $bits['i'] == $sectionIndex ) {
5864 $targetLevel = $bits['level'];
5868 if ( $mode === 'replace' ) {
5869 $outText .= $frame->expand( $node, PPFrame
::RECOVER_ORIG
);
5871 $node = $node->getNextSibling();
5877 if ( $mode === 'get' ) {
5884 # Find the end of the section, including nested sections
5886 if ( $node->getName() === 'h' ) {
5887 $bits = $node->splitHeading();
5888 $curLevel = $bits['level'];
5889 if ( $bits['i'] != $sectionIndex && $curLevel <= $targetLevel ) {
5893 if ( $mode === 'get' ) {
5894 $outText .= $frame->expand( $node, PPFrame
::RECOVER_ORIG
);
5896 $node = $node->getNextSibling();
5899 # Write out the remainder (in replace mode only)
5900 if ( $mode === 'replace' ) {
5901 # Output the replacement text
5902 # Add two newlines on -- trailing whitespace in $newText is conventionally
5903 # stripped by the editor, so we need both newlines to restore the paragraph gap
5904 # Only add trailing whitespace if there is newText
5905 if ( $newText != "" ) {
5906 $outText .= $newText . "\n\n";
5910 $outText .= $frame->expand( $node, PPFrame
::RECOVER_ORIG
);
5911 $node = $node->getNextSibling();
5915 if ( is_string( $outText ) ) {
5916 # Re-insert stripped tags
5917 $outText = rtrim( $this->mStripState
->unstripBoth( $outText ) );
5924 * This function returns the text of a section, specified by a number ($section).
5925 * A section is text under a heading like == Heading == or \<h1\>Heading\</h1\>, or
5926 * the first section before any such heading (section 0).
5928 * If a section contains subsections, these are also returned.
5930 * @param string $text Text to look in
5931 * @param string|int $sectionId Section identifier as a number or string
5932 * (e.g. 0, 1 or 'T-1').
5933 * @param string $defaultText Default to return if section is not found
5935 * @return string Text of the requested section
5937 public function getSection( $text, $sectionId, $defaultText = '' ) {
5938 return $this->extractSections( $text, $sectionId, 'get', $defaultText );
5942 * This function returns $oldtext after the content of the section
5943 * specified by $section has been replaced with $text. If the target
5944 * section does not exist, $oldtext is returned unchanged.
5946 * @param string $oldText Former text of the article
5947 * @param string|int $sectionId Section identifier as a number or string
5948 * (e.g. 0, 1 or 'T-1').
5949 * @param string $newText Replacing text
5951 * @return string Modified text
5953 public function replaceSection( $oldText, $sectionId, $newText ) {
5954 return $this->extractSections( $oldText, $sectionId, 'replace', $newText );
5958 * Get the ID of the revision we are parsing
5960 * The return value will be either:
5961 * - a) Positive, indicating a specific revision ID (current or old)
5962 * - b) Zero, meaning the revision ID is specified by getCurrentRevisionCallback()
5963 * - c) Null, meaning the parse is for preview mode and there is no revision
5967 public function getRevisionId() {
5968 return $this->mRevisionId
;
5972 * Get the revision object for $this->mRevisionId
5974 * @return Revision|null Either a Revision object or null
5975 * @since 1.23 (public since 1.23)
5977 public function getRevisionObject() {
5978 if ( $this->mRevisionObject
) {
5979 return $this->mRevisionObject
;
5982 // NOTE: try to get the RevisionObject even if mRevisionId is null.
5983 // This is useful when parsing a revision that has not yet been saved.
5984 // However, if we get back a saved revision even though we are in
5985 // preview mode, we'll have to ignore it, see below.
5986 // NOTE: This callback may be used to inject an OLD revision that was
5987 // already loaded, so "current" is a bit of a misnomer. We can't just
5988 // skip it if mRevisionId is set.
5989 $rev = call_user_func(
5990 $this->mOptions
->getCurrentRevisionCallback(),
5995 if ( $this->mRevisionId
=== null && $rev && $rev->getId() ) {
5996 // We are in preview mode (mRevisionId is null), and the current revision callback
5997 // returned an existing revision. Ignore it and return null, it's probably the page's
5998 // current revision, which is not what we want here. Note that we do want to call the
5999 // callback to allow the unsaved revision to be injected here, e.g. for
6000 // self-transclusion previews.
6004 // If the parse is for a new revision, then the callback should have
6005 // already been set to force the object and should match mRevisionId.
6006 // If not, try to fetch by mRevisionId for sanity.
6007 if ( $this->mRevisionId
&& $rev && $rev->getId() != $this->mRevisionId
) {
6008 $rev = Revision
::newFromId( $this->mRevisionId
);
6011 $this->mRevisionObject
= $rev;
6013 return $this->mRevisionObject
;
6017 * Get the timestamp associated with the current revision, adjusted for
6018 * the default server-local timestamp
6019 * @return string TS_MW timestamp
6021 public function getRevisionTimestamp() {
6022 if ( $this->mRevisionTimestamp
!== null ) {
6023 return $this->mRevisionTimestamp
;
6026 # Use specified revision timestamp, falling back to the current timestamp
6027 $revObject = $this->getRevisionObject();
6028 $timestamp = $revObject ?
$revObject->getTimestamp() : $this->mOptions
->getTimestamp();
6029 $this->mOutput
->setRevisionTimestampUsed( $timestamp ); // unadjusted time zone
6031 # The cryptic '' timezone parameter tells to use the site-default
6032 # timezone offset instead of the user settings.
6033 # Since this value will be saved into the parser cache, served
6034 # to other users, and potentially even used inside links and such,
6035 # it needs to be consistent for all visitors.
6036 $this->mRevisionTimestamp
= $this->contLang
->userAdjust( $timestamp, '' );
6038 return $this->mRevisionTimestamp
;
6042 * Get the name of the user that edited the last revision
6044 * @return string User name
6046 public function getRevisionUser() {
6047 if ( is_null( $this->mRevisionUser
) ) {
6048 $revObject = $this->getRevisionObject();
6050 # if this template is subst: the revision id will be blank,
6051 # so just use the current user's name
6053 $this->mRevisionUser
= $revObject->getUserText();
6054 } elseif ( $this->ot
['wiki'] ||
$this->mOptions
->getIsPreview() ) {
6055 $this->mRevisionUser
= $this->getUser()->getName();
6058 return $this->mRevisionUser
;
6062 * Get the size of the revision
6064 * @return int|null Revision size
6066 public function getRevisionSize() {
6067 if ( is_null( $this->mRevisionSize
) ) {
6068 $revObject = $this->getRevisionObject();
6070 # if this variable is subst: the revision id will be blank,
6071 # so just use the parser input size, because the own substituation
6072 # will change the size.
6074 $this->mRevisionSize
= $revObject->getSize();
6076 $this->mRevisionSize
= $this->mInputSize
;
6079 return $this->mRevisionSize
;
6083 * Mutator for $mDefaultSort
6085 * @param string $sort New value
6087 public function setDefaultSort( $sort ) {
6088 $this->mDefaultSort
= $sort;
6089 $this->mOutput
->setProperty( 'defaultsort', $sort );
6093 * Accessor for $mDefaultSort
6094 * Will use the empty string if none is set.
6096 * This value is treated as a prefix, so the
6097 * empty string is equivalent to sorting by
6102 public function getDefaultSort() {
6103 if ( $this->mDefaultSort
!== false ) {
6104 return $this->mDefaultSort
;
6111 * Accessor for $mDefaultSort
6112 * Unlike getDefaultSort(), will return false if none is set
6114 * @return string|bool
6116 public function getCustomDefaultSort() {
6117 return $this->mDefaultSort
;
6120 private static function getSectionNameFromStrippedText( $text ) {
6121 $text = Sanitizer
::normalizeSectionNameWhitespace( $text );
6122 $text = Sanitizer
::decodeCharReferences( $text );
6123 $text = self
::normalizeSectionName( $text );
6127 private static function makeAnchor( $sectionName ) {
6128 return '#' . Sanitizer
::escapeIdForLink( $sectionName );
6131 private function makeLegacyAnchor( $sectionName ) {
6132 $fragmentMode = $this->svcOptions
->get( 'FragmentMode' );
6133 if ( isset( $fragmentMode[1] ) && $fragmentMode[1] === 'legacy' ) {
6134 // ForAttribute() and ForLink() are the same for legacy encoding
6135 $id = Sanitizer
::escapeIdForAttribute( $sectionName, Sanitizer
::ID_FALLBACK
);
6137 $id = Sanitizer
::escapeIdForLink( $sectionName );
6144 * Try to guess the section anchor name based on a wikitext fragment
6145 * presumably extracted from a heading, for example "Header" from
6148 * @param string $text
6149 * @return string Anchor (starting with '#')
6151 public function guessSectionNameFromWikiText( $text ) {
6152 # Strip out wikitext links(they break the anchor)
6153 $text = $this->stripSectionName( $text );
6154 $sectionName = self
::getSectionNameFromStrippedText( $text );
6155 return self
::makeAnchor( $sectionName );
6159 * Same as guessSectionNameFromWikiText(), but produces legacy anchors
6160 * instead, if possible. For use in redirects, since various versions
6161 * of Microsoft browsers interpret Location: headers as something other
6162 * than UTF-8, resulting in breakage.
6164 * @param string $text The section name
6165 * @return string Anchor (starting with '#')
6167 public function guessLegacySectionNameFromWikiText( $text ) {
6168 # Strip out wikitext links(they break the anchor)
6169 $text = $this->stripSectionName( $text );
6170 $sectionName = self
::getSectionNameFromStrippedText( $text );
6171 return $this->makeLegacyAnchor( $sectionName );
6175 * Like guessSectionNameFromWikiText(), but takes already-stripped text as input.
6176 * @param string $text Section name (plain text)
6177 * @return string Anchor (starting with '#')
6179 public static function guessSectionNameFromStrippedText( $text ) {
6180 $sectionName = self
::getSectionNameFromStrippedText( $text );
6181 return self
::makeAnchor( $sectionName );
6185 * Apply the same normalization as code making links to this section would
6187 * @param string $text
6190 private static function normalizeSectionName( $text ) {
6191 # T90902: ensure the same normalization is applied for IDs as to links
6192 $titleParser = MediaWikiServices
::getInstance()->getTitleParser();
6195 $parts = $titleParser->splitTitleString( "#$text" );
6196 } catch ( MalformedTitleException
$ex ) {
6199 return $parts['fragment'];
6203 * Strips a text string of wikitext for use in a section anchor
6205 * Accepts a text string and then removes all wikitext from the
6206 * string and leaves only the resultant text (i.e. the result of
6207 * [[User:WikiSysop|Sysop]] would be "Sysop" and the result of
6208 * [[User:WikiSysop]] would be "User:WikiSysop") - this is intended
6209 * to create valid section anchors by mimicing the output of the
6210 * parser when headings are parsed.
6212 * @param string $text Text string to be stripped of wikitext
6213 * for use in a Section anchor
6214 * @return string Filtered text string
6216 public function stripSectionName( $text ) {
6217 # Strip internal link markup
6218 $text = preg_replace( '/\[\[:?([^[|]+)\|([^[]+)\]\]/', '$2', $text );
6219 $text = preg_replace( '/\[\[:?([^[]+)\|?\]\]/', '$1', $text );
6221 # Strip external link markup
6222 # @todo FIXME: Not tolerant to blank link text
6223 # I.E. [https://www.mediawiki.org] will render as [1] or something depending
6224 # on how many empty links there are on the page - need to figure that out.
6225 $text = preg_replace( '/\[(?i:' . $this->mUrlProtocols
. ')([^ ]+?) ([^[]+)\]/', '$2', $text );
6227 # Parse wikitext quotes (italics & bold)
6228 $text = $this->doQuotes( $text );
6231 $text = StringUtils
::delimiterReplace( '<', '>', '', $text );
6236 * strip/replaceVariables/unstrip for preprocessor regression testing
6238 * @param string $text
6239 * @param Title $title
6240 * @param ParserOptions $options
6241 * @param int $outputType
6245 public function testSrvus( $text, Title
$title, ParserOptions
$options,
6246 $outputType = self
::OT_HTML
6248 $magicScopeVariable = $this->lock();
6249 $this->startParse( $title, $options, $outputType, true );
6251 $text = $this->replaceVariables( $text );
6252 $text = $this->mStripState
->unstripBoth( $text );
6253 $text = Sanitizer
::removeHTMLtags( $text );
6258 * @param string $text
6259 * @param Title $title
6260 * @param ParserOptions $options
6263 public function testPst( $text, Title
$title, ParserOptions
$options ) {
6264 return $this->preSaveTransform( $text, $title, $options->getUser(), $options );
6268 * @param string $text
6269 * @param Title $title
6270 * @param ParserOptions $options
6273 public function testPreprocess( $text, Title
$title, ParserOptions
$options ) {
6274 return $this->testSrvus( $text, $title, $options, self
::OT_PREPROCESS
);
6278 * Call a callback function on all regions of the given text that are not
6279 * inside strip markers, and replace those regions with the return value
6280 * of the callback. For example, with input:
6284 * This will call the callback function twice, with 'aaa' and 'bbb'. Those
6285 * two strings will be replaced with the value returned by the callback in
6289 * @param callable $callback
6293 public function markerSkipCallback( $s, $callback ) {
6296 while ( $i < strlen( $s ) ) {
6297 $markerStart = strpos( $s, self
::MARKER_PREFIX
, $i );
6298 if ( $markerStart === false ) {
6299 $out .= call_user_func( $callback, substr( $s, $i ) );
6302 $out .= call_user_func( $callback, substr( $s, $i, $markerStart - $i ) );
6303 $markerEnd = strpos( $s, self
::MARKER_SUFFIX
, $markerStart );
6304 if ( $markerEnd === false ) {
6305 $out .= substr( $s, $markerStart );
6308 $markerEnd +
= strlen( self
::MARKER_SUFFIX
);
6309 $out .= substr( $s, $markerStart, $markerEnd - $markerStart );
6318 * Remove any strip markers found in the given text.
6320 * @param string $text
6323 public function killMarkers( $text ) {
6324 return $this->mStripState
->killMarkers( $text );
6328 * Save the parser state required to convert the given half-parsed text to
6329 * HTML. "Half-parsed" in this context means the output of
6330 * recursiveTagParse() or internalParse(). This output has strip markers
6331 * from replaceVariables (extensionSubstitution() etc.), and link
6332 * placeholders from replaceLinkHolders().
6334 * Returns an array which can be serialized and stored persistently. This
6335 * array can later be loaded into another parser instance with
6336 * unserializeHalfParsedText(). The text can then be safely incorporated into
6337 * the return value of a parser hook.
6339 * @deprecated since 1.31
6340 * @param string $text
6344 public function serializeHalfParsedText( $text ) {
6345 wfDeprecated( __METHOD__
, '1.31' );
6348 'version' => self
::HALF_PARSED_VERSION
,
6349 'stripState' => $this->mStripState
->getSubState( $text ),
6350 'linkHolders' => $this->mLinkHolders
->getSubArray( $text )
6356 * Load the parser state given in the $data array, which is assumed to
6357 * have been generated by serializeHalfParsedText(). The text contents is
6358 * extracted from the array, and its markers are transformed into markers
6359 * appropriate for the current Parser instance. This transformed text is
6360 * returned, and can be safely included in the return value of a parser
6363 * If the $data array has been stored persistently, the caller should first
6364 * check whether it is still valid, by calling isValidHalfParsedText().
6366 * @deprecated since 1.31
6367 * @param array $data Serialized data
6368 * @throws MWException
6371 public function unserializeHalfParsedText( $data ) {
6372 wfDeprecated( __METHOD__
, '1.31' );
6373 if ( !isset( $data['version'] ) ||
$data['version'] != self
::HALF_PARSED_VERSION
) {
6374 throw new MWException( __METHOD__
. ': invalid version' );
6377 # First, extract the strip state.
6378 $texts = [ $data['text'] ];
6379 $texts = $this->mStripState
->merge( $data['stripState'], $texts );
6381 # Now renumber links
6382 $texts = $this->mLinkHolders
->mergeForeign( $data['linkHolders'], $texts );
6384 # Should be good to go.
6389 * Returns true if the given array, presumed to be generated by
6390 * serializeHalfParsedText(), is compatible with the current version of the
6393 * @deprecated since 1.31
6394 * @param array $data
6398 public function isValidHalfParsedText( $data ) {
6399 wfDeprecated( __METHOD__
, '1.31' );
6400 return isset( $data['version'] ) && $data['version'] == self
::HALF_PARSED_VERSION
;
6404 * Parsed a width param of imagelink like 300px or 200x300px
6406 * @param string $value
6407 * @param bool $parseHeight
6412 public static function parseWidthParam( $value, $parseHeight = true ) {
6413 $parsedWidthParam = [];
6414 if ( $value === '' ) {
6415 return $parsedWidthParam;
6418 # (T15500) In both cases (width/height and width only),
6419 # permit trailing "px" for backward compatibility.
6420 if ( $parseHeight && preg_match( '/^([0-9]*)x([0-9]*)\s*(?:px)?\s*$/', $value, $m ) ) {
6421 $width = intval( $m[1] );
6422 $height = intval( $m[2] );
6423 $parsedWidthParam['width'] = $width;
6424 $parsedWidthParam['height'] = $height;
6425 } elseif ( preg_match( '/^[0-9]*\s*(?:px)?\s*$/', $value ) ) {
6426 $width = intval( $value );
6427 $parsedWidthParam['width'] = $width;
6429 return $parsedWidthParam;
6433 * Lock the current instance of the parser.
6435 * This is meant to stop someone from calling the parser
6436 * recursively and messing up all the strip state.
6438 * @throws MWException If parser is in a parse
6439 * @return ScopedCallback The lock will be released once the return value goes out of scope.
6441 protected function lock() {
6442 if ( $this->mInParse
) {
6443 throw new MWException( "Parser state cleared while parsing. "
6444 . "Did you call Parser::parse recursively? Lock is held by: " . $this->mInParse
);
6447 // Save the backtrace when locking, so that if some code tries locking again,
6448 // we can print the lock owner's backtrace for easier debugging
6450 $this->mInParse
= $e->getTraceAsString();
6452 $recursiveCheck = new ScopedCallback( function () {
6453 $this->mInParse
= false;
6456 return $recursiveCheck;
6460 * Strip outer <p></p> tag from the HTML source of a single paragraph.
6462 * Returns original HTML if the <p/> tag has any attributes, if there's no wrapping <p/> tag,
6463 * or if there is more than one <p/> tag in the input HTML.
6465 * @param string $html
6469 public static function stripOuterParagraph( $html ) {
6471 if ( preg_match( '/^<p>(.*)\n?<\/p>\n?$/sU', $html, $m ) && strpos( $m[1], '</p>' ) === false ) {
6479 * Return this parser if it is not doing anything, otherwise
6480 * get a fresh parser. You can use this method by doing
6481 * $newParser = $oldParser->getFreshParser(), or more simply
6482 * $oldParser->getFreshParser()->parse( ... );
6483 * if you're unsure if $oldParser is safe to use.
6486 * @return Parser A parser object that is not parsing anything
6488 public function getFreshParser() {
6489 if ( $this->mInParse
) {
6490 return $this->factory
->create();
6497 * Set's up the PHP implementation of OOUI for use in this request
6498 * and instructs OutputPage to enable OOUI for itself.
6502 public function enableOOUI() {
6503 OutputPage
::setupOOUI();
6504 $this->mOutput
->setEnableOOUI( true );
6508 * @param string $flag
6509 * @param string $reason
6511 protected function setOutputFlag( $flag, $reason ) {
6512 $this->mOutput
->setFlag( $flag );
6513 $name = $this->mTitle
->getPrefixedText();
6514 $this->logger
->debug( __METHOD__
. ": set $flag flag on '$name'; $reason" );