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Merge "Sanitizer::escapeId: Decode entity before replacing spaces"
[lhc/web/wiklou.git] / includes / page / Article.php
1 <?php
2 /**
3 * User interface for page actions.
4 *
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.
9 *
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.
14 *
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
19 *
20 * @file
21 */
22
23 /**
24 * Class for viewing MediaWiki article and history.
25 *
26 * This maintains WikiPage functions for backwards compatibility.
27 *
28 * @todo Move and rewrite code to an Action class
29 *
30 * See design.txt for an overview.
31 * Note: edit user interface and cache support functions have been
32 * moved to separate EditPage and HTMLFileCache classes.
33 *
34 * @internal documentation reviewed 15 Mar 2010
35 */
36 class Article implements Page {
37 /** @var IContextSource The context this Article is executed in */
38 protected $mContext;
39
40 /** @var WikiPage The WikiPage object of this instance */
41 protected $mPage;
42
43 /** @var ParserOptions ParserOptions object for $wgUser articles */
44 public $mParserOptions;
45
46 /**
47 * @var string Text of the revision we are working on
48 * @todo BC cruft
49 */
50 public $mContent;
51
52 /**
53 * @var Content Content of the revision we are working on
54 * @since 1.21
55 */
56 protected $mContentObject;
57
58 /** @var bool Is the content ($mContent) already loaded? */
59 protected $mContentLoaded = false;
60
61 /** @var int|null The oldid of the article that is to be shown, 0 for the current revision */
62 protected $mOldId;
63
64 /** @var Title Title from which we were redirected here */
65 protected $mRedirectedFrom = null;
66
67 /** @var string|bool URL to redirect to or false if none */
68 protected $mRedirectUrl = false;
69
70 /** @var int Revision ID of revision we are working on */
71 protected $mRevIdFetched = 0;
72
73 /** @var Revision Revision we are working on */
74 protected $mRevision = null;
75
76 /** @var ParserOutput */
77 public $mParserOutput;
78
79 /**
80 * Constructor and clear the article
81 * @param Title $title Reference to a Title object.
82 * @param int $oldId Revision ID, null to fetch from request, zero for current
83 */
84 public function __construct( Title $title, $oldId = null ) {
85 $this->mOldId = $oldId;
86 $this->mPage = $this->newPage( $title );
87 }
88
89 /**
90 * @param Title $title
91 * @return WikiPage
92 */
93 protected function newPage( Title $title ) {
94 return new WikiPage( $title );
95 }
96
97 /**
98 * Constructor from a page id
99 * @param int $id Article ID to load
100 * @return Article|null
101 */
102 public static function newFromID( $id ) {
103 $t = Title::newFromID( $id );
104 # @todo FIXME: Doesn't inherit right
105 return $t == null ? null : new self( $t );
106 # return $t == null ? null : new static( $t ); // PHP 5.3
107 }
108
109 /**
110 * Create an Article object of the appropriate class for the given page.
111 *
112 * @param Title $title
113 * @param IContextSource $context
114 * @return Article
115 */
116 public static function newFromTitle( $title, IContextSource $context ) {
117 if ( NS_MEDIA == $title->getNamespace() ) {
118 // FIXME: where should this go?
119 $title = Title::makeTitle( NS_FILE, $title->getDBkey() );
120 }
121
122 $page = null;
123 wfRunHooks( 'ArticleFromTitle', array( &$title, &$page, $context ) );
124 if ( !$page ) {
125 switch ( $title->getNamespace() ) {
126 case NS_FILE:
127 $page = new ImagePage( $title );
128 break;
129 case NS_CATEGORY:
130 $page = new CategoryPage( $title );
131 break;
132 default:
133 $page = new Article( $title );
134 }
135 }
136 $page->setContext( $context );
137
138 return $page;
139 }
140
141 /**
142 * Create an Article object of the appropriate class for the given page.
143 *
144 * @param WikiPage $page
145 * @param IContextSource $context
146 * @return Article
147 */
148 public static function newFromWikiPage( WikiPage $page, IContextSource $context ) {
149 $article = self::newFromTitle( $page->getTitle(), $context );
150 $article->mPage = $page; // override to keep process cached vars
151 return $article;
152 }
153
154 /**
155 * Tell the page view functions that this view was redirected
156 * from another page on the wiki.
157 * @param Title $from
158 */
159 public function setRedirectedFrom( Title $from ) {
160 $this->mRedirectedFrom = $from;
161 }
162
163 /**
164 * Get the title object of the article
165 *
166 * @return Title Title object of this page
167 */
168 public function getTitle() {
169 return $this->mPage->getTitle();
170 }
171
172 /**
173 * Get the WikiPage object of this instance
174 *
175 * @since 1.19
176 * @return WikiPage
177 */
178 public function getPage() {
179 return $this->mPage;
180 }
181
182 /**
183 * Clear the object
184 */
185 public function clear() {
186 $this->mContentLoaded = false;
187
188 $this->mRedirectedFrom = null; # Title object if set
189 $this->mRevIdFetched = 0;
190 $this->mRedirectUrl = false;
191
192 $this->mPage->clear();
193 }
194
195 /**
196 * Note that getContent/loadContent do not follow redirects anymore.
197 * If you need to fetch redirectable content easily, try
198 * the shortcut in WikiPage::getRedirectTarget()
199 *
200 * This function has side effects! Do not use this function if you
201 * only want the real revision text if any.
202 *
203 * @deprecated since 1.21; use WikiPage::getContent() instead
204 *
205 * @return string Return the text of this revision
206 */
207 public function getContent() {
208 ContentHandler::deprecated( __METHOD__, '1.21' );
209 $content = $this->getContentObject();
210 return ContentHandler::getContentText( $content );
211 }
212
213 /**
214 * Returns a Content object representing the pages effective display content,
215 * not necessarily the revision's content!
216 *
217 * Note that getContent/loadContent do not follow redirects anymore.
218 * If you need to fetch redirectable content easily, try
219 * the shortcut in WikiPage::getRedirectTarget()
220 *
221 * This function has side effects! Do not use this function if you
222 * only want the real revision text if any.
223 *
224 * @return Content Return the content of this revision
225 *
226 * @since 1.21
227 */
228 protected function getContentObject() {
229 wfProfileIn( __METHOD__ );
230
231 if ( $this->mPage->getID() === 0 ) {
232 # If this is a MediaWiki:x message, then load the messages
233 # and return the message value for x.
234 if ( $this->getTitle()->getNamespace() == NS_MEDIAWIKI ) {
235 $text = $this->getTitle()->getDefaultMessageText();
236 if ( $text === false ) {
237 $text = '';
238 }
239
240 $content = ContentHandler::makeContent( $text, $this->getTitle() );
241 } else {
242 $message = $this->getContext()->getUser()->isLoggedIn() ? 'noarticletext' : 'noarticletextanon';
243 $content = new MessageContent( $message, null, 'parsemag' );
244 }
245 } else {
246 $this->fetchContentObject();
247 $content = $this->mContentObject;
248 }
249
250 wfProfileOut( __METHOD__ );
251 return $content;
252 }
253
254 /**
255 * @return int The oldid of the article that is to be shown, 0 for the current revision
256 */
257 public function getOldID() {
258 if ( is_null( $this->mOldId ) ) {
259 $this->mOldId = $this->getOldIDFromRequest();
260 }
261
262 return $this->mOldId;
263 }
264
265 /**
266 * Sets $this->mRedirectUrl to a correct URL if the query parameters are incorrect
267 *
268 * @return int The old id for the request
269 */
270 public function getOldIDFromRequest() {
271 $this->mRedirectUrl = false;
272
273 $request = $this->getContext()->getRequest();
274 $oldid = $request->getIntOrNull( 'oldid' );
275
276 if ( $oldid === null ) {
277 return 0;
278 }
279
280 if ( $oldid !== 0 ) {
281 # Load the given revision and check whether the page is another one.
282 # In that case, update this instance to reflect the change.
283 if ( $oldid === $this->mPage->getLatest() ) {
284 $this->mRevision = $this->mPage->getRevision();
285 } else {
286 $this->mRevision = Revision::newFromId( $oldid );
287 if ( $this->mRevision !== null ) {
288 // Revision title doesn't match the page title given?
289 if ( $this->mPage->getID() != $this->mRevision->getPage() ) {
290 $function = array( get_class( $this->mPage ), 'newFromID' );
291 $this->mPage = call_user_func( $function, $this->mRevision->getPage() );
292 }
293 }
294 }
295 }
296
297 if ( $request->getVal( 'direction' ) == 'next' ) {
298 $nextid = $this->getTitle()->getNextRevisionID( $oldid );
299 if ( $nextid ) {
300 $oldid = $nextid;
301 $this->mRevision = null;
302 } else {
303 $this->mRedirectUrl = $this->getTitle()->getFullURL( 'redirect=no' );
304 }
305 } elseif ( $request->getVal( 'direction' ) == 'prev' ) {
306 $previd = $this->getTitle()->getPreviousRevisionID( $oldid );
307 if ( $previd ) {
308 $oldid = $previd;
309 $this->mRevision = null;
310 }
311 }
312
313 return $oldid;
314 }
315
316 /**
317 * Load the revision (including text) into this object
318 *
319 * @deprecated since 1.19; use fetchContent()
320 */
321 function loadContent() {
322 wfDeprecated( __METHOD__, '1.19' );
323 $this->fetchContent();
324 }
325
326 /**
327 * Get text of an article from database
328 * Does *NOT* follow redirects.
329 *
330 * @protected
331 * @note This is really internal functionality that should really NOT be
332 * used by other functions. For accessing article content, use the WikiPage
333 * class, especially WikiBase::getContent(). However, a lot of legacy code
334 * uses this method to retrieve page text from the database, so the function
335 * has to remain public for now.
336 *
337 * @return string|bool String containing article contents, or false if null
338 * @deprecated since 1.21, use WikiPage::getContent() instead
339 */
340 function fetchContent() { #BC cruft!
341 ContentHandler::deprecated( __METHOD__, '1.21' );
342
343 if ( $this->mContentLoaded && $this->mContent ) {
344 return $this->mContent;
345 }
346
347 wfProfileIn( __METHOD__ );
348
349 $content = $this->fetchContentObject();
350
351 if ( !$content ) {
352 wfProfileOut( __METHOD__ );
353 return false;
354 }
355
356 // @todo Get rid of mContent everywhere!
357 $this->mContent = ContentHandler::getContentText( $content );
358 ContentHandler::runLegacyHooks( 'ArticleAfterFetchContent', array( &$this, &$this->mContent ) );
359
360 wfProfileOut( __METHOD__ );
361
362 return $this->mContent;
363 }
364
365 /**
366 * Get text content object
367 * Does *NOT* follow redirects.
368 * @todo When is this null?
369 *
370 * @note Code that wants to retrieve page content from the database should
371 * use WikiPage::getContent().
372 *
373 * @return Content|null|bool
374 *
375 * @since 1.21
376 */
377 protected function fetchContentObject() {
378 if ( $this->mContentLoaded ) {
379 return $this->mContentObject;
380 }
381
382 wfProfileIn( __METHOD__ );
383
384 $this->mContentLoaded = true;
385 $this->mContent = null;
386
387 $oldid = $this->getOldID();
388
389 # Pre-fill content with error message so that if something
390 # fails we'll have something telling us what we intended.
391 //XXX: this isn't page content but a UI message. horrible.
392 $this->mContentObject = new MessageContent( 'missing-revision', array( $oldid ), array() );
393
394 if ( $oldid ) {
395 # $this->mRevision might already be fetched by getOldIDFromRequest()
396 if ( !$this->mRevision ) {
397 $this->mRevision = Revision::newFromId( $oldid );
398 if ( !$this->mRevision ) {
399 wfDebug( __METHOD__ . " failed to retrieve specified revision, id $oldid\n" );
400 wfProfileOut( __METHOD__ );
401 return false;
402 }
403 }
404 } else {
405 if ( !$this->mPage->getLatest() ) {
406 wfDebug( __METHOD__ . " failed to find page data for title " .
407 $this->getTitle()->getPrefixedText() . "\n" );
408 wfProfileOut( __METHOD__ );
409 return false;
410 }
411
412 $this->mRevision = $this->mPage->getRevision();
413
414 if ( !$this->mRevision ) {
415 wfDebug( __METHOD__ . " failed to retrieve current page, rev_id " .
416 $this->mPage->getLatest() . "\n" );
417 wfProfileOut( __METHOD__ );
418 return false;
419 }
420 }
421
422 // @todo FIXME: Horrible, horrible! This content-loading interface just plain sucks.
423 // We should instead work with the Revision object when we need it...
424 // Loads if user is allowed
425 $this->mContentObject = $this->mRevision->getContent(
426 Revision::FOR_THIS_USER,
427 $this->getContext()->getUser()
428 );
429 $this->mRevIdFetched = $this->mRevision->getId();
430
431 wfRunHooks( 'ArticleAfterFetchContentObject', array( &$this, &$this->mContentObject ) );
432
433 wfProfileOut( __METHOD__ );
434
435 return $this->mContentObject;
436 }
437
438 /**
439 * Returns true if the currently-referenced revision is the current edit
440 * to this page (and it exists).
441 * @return bool
442 */
443 public function isCurrent() {
444 # If no oldid, this is the current version.
445 if ( $this->getOldID() == 0 ) {
446 return true;
447 }
448
449 return $this->mPage->exists() && $this->mRevision && $this->mRevision->isCurrent();
450 }
451
452 /**
453 * Get the fetched Revision object depending on request parameters or null
454 * on failure.
455 *
456 * @since 1.19
457 * @return Revision|null
458 */
459 public function getRevisionFetched() {
460 $this->fetchContentObject();
461
462 return $this->mRevision;
463 }
464
465 /**
466 * Use this to fetch the rev ID used on page views
467 *
468 * @return int Revision ID of last article revision
469 */
470 public function getRevIdFetched() {
471 if ( $this->mRevIdFetched ) {
472 return $this->mRevIdFetched;
473 } else {
474 return $this->mPage->getLatest();
475 }
476 }
477
478 /**
479 * This is the default action of the index.php entry point: just view the
480 * page of the given title.
481 */
482 public function view() {
483 global $wgUseFileCache, $wgUseETag, $wgDebugToolbar, $wgMaxRedirects;
484
485 wfProfileIn( __METHOD__ );
486
487 # Get variables from query string
488 # As side effect this will load the revision and update the title
489 # in a revision ID is passed in the request, so this should remain
490 # the first call of this method even if $oldid is used way below.
491 $oldid = $this->getOldID();
492
493 $user = $this->getContext()->getUser();
494 # Another whitelist check in case getOldID() is altering the title
495 $permErrors = $this->getTitle()->getUserPermissionsErrors( 'read', $user );
496 if ( count( $permErrors ) ) {
497 wfDebug( __METHOD__ . ": denied on secondary read check\n" );
498 wfProfileOut( __METHOD__ );
499 throw new PermissionsError( 'read', $permErrors );
500 }
501
502 $outputPage = $this->getContext()->getOutput();
503 # getOldID() may as well want us to redirect somewhere else
504 if ( $this->mRedirectUrl ) {
505 $outputPage->redirect( $this->mRedirectUrl );
506 wfDebug( __METHOD__ . ": redirecting due to oldid\n" );
507 wfProfileOut( __METHOD__ );
508
509 return;
510 }
511
512 # If we got diff in the query, we want to see a diff page instead of the article.
513 if ( $this->getContext()->getRequest()->getCheck( 'diff' ) ) {
514 wfDebug( __METHOD__ . ": showing diff page\n" );
515 $this->showDiffPage();
516 wfProfileOut( __METHOD__ );
517
518 return;
519 }
520
521 # Set page title (may be overridden by DISPLAYTITLE)
522 $outputPage->setPageTitle( $this->getTitle()->getPrefixedText() );
523
524 $outputPage->setArticleFlag( true );
525 # Allow frames by default
526 $outputPage->allowClickjacking();
527
528 $parserCache = ParserCache::singleton();
529
530 $parserOptions = $this->getParserOptions();
531 # Render printable version, use printable version cache
532 if ( $outputPage->isPrintable() ) {
533 $parserOptions->setIsPrintable( true );
534 $parserOptions->setEditSection( false );
535 } elseif ( !$this->isCurrent() || !$this->getTitle()->quickUserCan( 'edit', $user ) ) {
536 $parserOptions->setEditSection( false );
537 }
538
539 # Try client and file cache
540 if ( !$wgDebugToolbar && $oldid === 0 && $this->mPage->checkTouched() ) {
541 if ( $wgUseETag ) {
542 $outputPage->setETag( $parserCache->getETag( $this, $parserOptions ) );
543 }
544
545 # Use the greatest of the page's timestamp or the timestamp of any
546 # redirect in the chain (bug 67849)
547 $timestamp = $this->mPage->getTouched();
548 if ( isset( $this->mRedirectedFrom ) ) {
549 $timestamp = max( $timestamp, $this->mRedirectedFrom->getTouched() );
550
551 # If there can be more than one redirect in the chain, we have
552 # to go through the whole chain too in case an intermediate
553 # redirect was changed.
554 if ( $wgMaxRedirects > 1 ) {
555 $titles = Revision::newFromTitle( $this->mRedirectedFrom )
556 ->getContent( Revision::FOR_THIS_USER, $user )
557 ->getRedirectChain();
558 $thisTitle = $this->getTitle();
559 foreach ( $titles as $title ) {
560 if ( Title::compare( $title, $thisTitle ) === 0 ) {
561 break;
562 }
563 $timestamp = max( $timestamp, $title->getTouched() );
564 }
565 }
566 }
567
568 # Is it client cached?
569 if ( $outputPage->checkLastModified( $timestamp ) ) {
570 wfDebug( __METHOD__ . ": done 304\n" );
571 wfProfileOut( __METHOD__ );
572
573 return;
574 # Try file cache
575 } elseif ( $wgUseFileCache && $this->tryFileCache() ) {
576 wfDebug( __METHOD__ . ": done file cache\n" );
577 # tell wgOut that output is taken care of
578 $outputPage->disable();
579 $this->mPage->doViewUpdates( $user, $oldid );
580 wfProfileOut( __METHOD__ );
581
582 return;
583 }
584 }
585
586 # Should the parser cache be used?
587 $useParserCache = $this->mPage->isParserCacheUsed( $parserOptions, $oldid );
588 wfDebug( 'Article::view using parser cache: ' . ( $useParserCache ? 'yes' : 'no' ) . "\n" );
589 if ( $user->getStubThreshold() ) {
590 wfIncrStats( 'pcache_miss_stub' );
591 }
592
593 $this->showRedirectedFromHeader();
594 $this->showNamespaceHeader();
595
596 # Iterate through the possible ways of constructing the output text.
597 # Keep going until $outputDone is set, or we run out of things to do.
598 $pass = 0;
599 $outputDone = false;
600 $this->mParserOutput = false;
601
602 while ( !$outputDone && ++$pass ) {
603 switch ( $pass ) {
604 case 1:
605 wfRunHooks( 'ArticleViewHeader', array( &$this, &$outputDone, &$useParserCache ) );
606 break;
607 case 2:
608 # Early abort if the page doesn't exist
609 if ( !$this->mPage->exists() ) {
610 wfDebug( __METHOD__ . ": showing missing article\n" );
611 $this->showMissingArticle();
612 $this->mPage->doViewUpdates( $user );
613 wfProfileOut( __METHOD__ );
614 return;
615 }
616
617 # Try the parser cache
618 if ( $useParserCache ) {
619 $this->mParserOutput = $parserCache->get( $this, $parserOptions );
620
621 if ( $this->mParserOutput !== false ) {
622 if ( $oldid ) {
623 wfDebug( __METHOD__ . ": showing parser cache contents for current rev permalink\n" );
624 $this->setOldSubtitle( $oldid );
625 } else {
626 wfDebug( __METHOD__ . ": showing parser cache contents\n" );
627 }
628 $outputPage->addParserOutput( $this->mParserOutput );
629 # Ensure that UI elements requiring revision ID have
630 # the correct version information.
631 $outputPage->setRevisionId( $this->mPage->getLatest() );
632 # Preload timestamp to avoid a DB hit
633 $cachedTimestamp = $this->mParserOutput->getTimestamp();
634 if ( $cachedTimestamp !== null ) {
635 $outputPage->setRevisionTimestamp( $cachedTimestamp );
636 $this->mPage->setTimestamp( $cachedTimestamp );
637 }
638 $outputDone = true;
639 }
640 }
641 break;
642 case 3:
643 # This will set $this->mRevision if needed
644 $this->fetchContentObject();
645
646 # Are we looking at an old revision
647 if ( $oldid && $this->mRevision ) {
648 $this->setOldSubtitle( $oldid );
649
650 if ( !$this->showDeletedRevisionHeader() ) {
651 wfDebug( __METHOD__ . ": cannot view deleted revision\n" );
652 wfProfileOut( __METHOD__ );
653 return;
654 }
655 }
656
657 # Ensure that UI elements requiring revision ID have
658 # the correct version information.
659 $outputPage->setRevisionId( $this->getRevIdFetched() );
660 # Preload timestamp to avoid a DB hit
661 $outputPage->setRevisionTimestamp( $this->getTimestamp() );
662
663 # Pages containing custom CSS or JavaScript get special treatment
664 if ( $this->getTitle()->isCssOrJsPage() || $this->getTitle()->isCssJsSubpage() ) {
665 wfDebug( __METHOD__ . ": showing CSS/JS source\n" );
666 $this->showCssOrJsPage();
667 $outputDone = true;
668 } elseif ( !wfRunHooks( 'ArticleContentViewCustom',
669 array( $this->fetchContentObject(), $this->getTitle(), $outputPage ) ) ) {
670
671 # Allow extensions do their own custom view for certain pages
672 $outputDone = true;
673 } elseif ( !ContentHandler::runLegacyHooks( 'ArticleViewCustom',
674 array( $this->fetchContentObject(), $this->getTitle(), $outputPage ) ) ) {
675
676 # Allow extensions do their own custom view for certain pages
677 $outputDone = true;
678 }
679 break;
680 case 4:
681 # Run the parse, protected by a pool counter
682 wfDebug( __METHOD__ . ": doing uncached parse\n" );
683
684 $content = $this->getContentObject();
685 $poolArticleView = new PoolWorkArticleView( $this->getPage(), $parserOptions,
686 $this->getRevIdFetched(), $useParserCache, $content );
687
688 if ( !$poolArticleView->execute() ) {
689 $error = $poolArticleView->getError();
690 if ( $error ) {
691 $outputPage->clearHTML(); // for release() errors
692 $outputPage->enableClientCache( false );
693 $outputPage->setRobotPolicy( 'noindex,nofollow' );
694
695 $errortext = $error->getWikiText( false, 'view-pool-error' );
696 $outputPage->addWikiText( '<div class="errorbox">' . $errortext . '</div>' );
697 }
698 # Connection or timeout error
699 wfProfileOut( __METHOD__ );
700 return;
701 }
702
703 $this->mParserOutput = $poolArticleView->getParserOutput();
704 $outputPage->addParserOutput( $this->mParserOutput );
705 if ( $content->getRedirectTarget() ) {
706 $outputPage->addSubtitle(
707 "<span id=\"redirectsub\">" . wfMessage( 'redirectpagesub' )->parse() . "</span>"
708 );
709 }
710
711 # Don't cache a dirty ParserOutput object
712 if ( $poolArticleView->getIsDirty() ) {
713 $outputPage->setSquidMaxage( 0 );
714 $outputPage->addHTML( "<!-- parser cache is expired, " .
715 "sending anyway due to pool overload-->\n" );
716 }
717
718 $outputDone = true;
719 break;
720 # Should be unreachable, but just in case...
721 default:
722 break 2;
723 }
724 }
725
726 # Get the ParserOutput actually *displayed* here.
727 # Note that $this->mParserOutput is the *current* version output.
728 $pOutput = ( $outputDone instanceof ParserOutput )
729 ? $outputDone // object fetched by hook
730 : $this->mParserOutput;
731
732 # Adjust title for main page & pages with displaytitle
733 if ( $pOutput ) {
734 $this->adjustDisplayTitle( $pOutput );
735 }
736
737 # For the main page, overwrite the <title> element with the con-
738 # tents of 'pagetitle-view-mainpage' instead of the default (if
739 # that's not empty).
740 # This message always exists because it is in the i18n files
741 if ( $this->getTitle()->isMainPage() ) {
742 $msg = wfMessage( 'pagetitle-view-mainpage' )->inContentLanguage();
743 if ( !$msg->isDisabled() ) {
744 $outputPage->setHTMLTitle( $msg->title( $this->getTitle() )->text() );
745 }
746 }
747
748 # Check for any __NOINDEX__ tags on the page using $pOutput
749 $policy = $this->getRobotPolicy( 'view', $pOutput );
750 $outputPage->setIndexPolicy( $policy['index'] );
751 $outputPage->setFollowPolicy( $policy['follow'] );
752
753 $this->showViewFooter();
754 $this->mPage->doViewUpdates( $user, $oldid );
755
756 $outputPage->addModules( 'mediawiki.action.view.postEdit' );
757
758 wfProfileOut( __METHOD__ );
759 }
760
761 /**
762 * Adjust title for pages with displaytitle, -{T|}- or language conversion
763 * @param ParserOutput $pOutput
764 */
765 public function adjustDisplayTitle( ParserOutput $pOutput ) {
766 # Adjust the title if it was set by displaytitle, -{T|}- or language conversion
767 $titleText = $pOutput->getTitleText();
768 if ( strval( $titleText ) !== '' ) {
769 $this->getContext()->getOutput()->setPageTitle( $titleText );
770 }
771 }
772
773 /**
774 * Show a diff page according to current request variables. For use within
775 * Article::view() only, other callers should use the DifferenceEngine class.
776 *
777 * @todo Make protected
778 */
779 public function showDiffPage() {
780 $request = $this->getContext()->getRequest();
781 $user = $this->getContext()->getUser();
782 $diff = $request->getVal( 'diff' );
783 $rcid = $request->getVal( 'rcid' );
784 $diffOnly = $request->getBool( 'diffonly', $user->getOption( 'diffonly' ) );
785 $purge = $request->getVal( 'action' ) == 'purge';
786 $unhide = $request->getInt( 'unhide' ) == 1;
787 $oldid = $this->getOldID();
788
789 $rev = $this->getRevisionFetched();
790
791 if ( !$rev ) {
792 $this->getContext()->getOutput()->setPageTitle( wfMessage( 'errorpagetitle' ) );
793 $this->getContext()->getOutput()->addWikiMsg( 'difference-missing-revision', $oldid, 1 );
794 return;
795 }
796
797 $contentHandler = $rev->getContentHandler();
798 $de = $contentHandler->createDifferenceEngine(
799 $this->getContext(),
800 $oldid,
801 $diff,
802 $rcid,
803 $purge,
804 $unhide
805 );
806
807 // DifferenceEngine directly fetched the revision:
808 $this->mRevIdFetched = $de->mNewid;
809 $de->showDiffPage( $diffOnly );
810
811 // Run view updates for the newer revision being diffed (and shown
812 // below the diff if not $diffOnly).
813 list( $old, $new ) = $de->mapDiffPrevNext( $oldid, $diff );
814 // New can be false, convert it to 0 - this conveniently means the latest revision
815 $this->mPage->doViewUpdates( $user, (int)$new );
816 }
817
818 /**
819 * Show a page view for a page formatted as CSS or JavaScript. To be called by
820 * Article::view() only.
821 *
822 * This exists mostly to serve the deprecated ShowRawCssJs hook (used to customize these views).
823 * It has been replaced by the ContentGetParserOutput hook, which lets you do the same but with
824 * more flexibility.
825 *
826 * @param bool $showCacheHint Whether to show a message telling the user
827 * to clear the browser cache (default: true).
828 */
829 protected function showCssOrJsPage( $showCacheHint = true ) {
830 $outputPage = $this->getContext()->getOutput();
831
832 if ( $showCacheHint ) {
833 $dir = $this->getContext()->getLanguage()->getDir();
834 $lang = $this->getContext()->getLanguage()->getCode();
835
836 $outputPage->wrapWikiMsg(
837 "<div id='mw-clearyourcache' lang='$lang' dir='$dir' class='mw-content-$dir'>\n$1\n</div>",
838 'clearyourcache'
839 );
840 }
841
842 $this->fetchContentObject();
843
844 if ( $this->mContentObject ) {
845 // Give hooks a chance to customise the output
846 if ( ContentHandler::runLegacyHooks(
847 'ShowRawCssJs',
848 array( $this->mContentObject, $this->getTitle(), $outputPage ) )
849 ) {
850 // If no legacy hooks ran, display the content of the parser output, including RL modules,
851 // but excluding metadata like categories and language links
852 $po = $this->mContentObject->getParserOutput( $this->getTitle() );
853 $outputPage->addParserOutputContent( $po );
854 }
855 }
856 }
857
858 /**
859 * Get the robot policy to be used for the current view
860 * @param string $action The action= GET parameter
861 * @param ParserOutput|null $pOutput
862 * @return array The policy that should be set
863 * @todo actions other than 'view'
864 */
865 public function getRobotPolicy( $action, $pOutput = null ) {
866 global $wgArticleRobotPolicies, $wgNamespaceRobotPolicies, $wgDefaultRobotPolicy;
867
868 $ns = $this->getTitle()->getNamespace();
869
870 # Don't index user and user talk pages for blocked users (bug 11443)
871 if ( ( $ns == NS_USER || $ns == NS_USER_TALK ) && !$this->getTitle()->isSubpage() ) {
872 $specificTarget = null;
873 $vagueTarget = null;
874 $titleText = $this->getTitle()->getText();
875 if ( IP::isValid( $titleText ) ) {
876 $vagueTarget = $titleText;
877 } else {
878 $specificTarget = $titleText;
879 }
880 if ( Block::newFromTarget( $specificTarget, $vagueTarget ) instanceof Block ) {
881 return array(
882 'index' => 'noindex',
883 'follow' => 'nofollow'
884 );
885 }
886 }
887
888 if ( $this->mPage->getID() === 0 || $this->getOldID() ) {
889 # Non-articles (special pages etc), and old revisions
890 return array(
891 'index' => 'noindex',
892 'follow' => 'nofollow'
893 );
894 } elseif ( $this->getContext()->getOutput()->isPrintable() ) {
895 # Discourage indexing of printable versions, but encourage following
896 return array(
897 'index' => 'noindex',
898 'follow' => 'follow'
899 );
900 } elseif ( $this->getContext()->getRequest()->getInt( 'curid' ) ) {
901 # For ?curid=x urls, disallow indexing
902 return array(
903 'index' => 'noindex',
904 'follow' => 'follow'
905 );
906 }
907
908 # Otherwise, construct the policy based on the various config variables.
909 $policy = self::formatRobotPolicy( $wgDefaultRobotPolicy );
910
911 if ( isset( $wgNamespaceRobotPolicies[$ns] ) ) {
912 # Honour customised robot policies for this namespace
913 $policy = array_merge(
914 $policy,
915 self::formatRobotPolicy( $wgNamespaceRobotPolicies[$ns] )
916 );
917 }
918 if ( $this->getTitle()->canUseNoindex() && is_object( $pOutput ) && $pOutput->getIndexPolicy() ) {
919 # __INDEX__ and __NOINDEX__ magic words, if allowed. Incorporates
920 # a final sanity check that we have really got the parser output.
921 $policy = array_merge(
922 $policy,
923 array( 'index' => $pOutput->getIndexPolicy() )
924 );
925 }
926
927 if ( isset( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] ) ) {
928 # (bug 14900) site config can override user-defined __INDEX__ or __NOINDEX__
929 $policy = array_merge(
930 $policy,
931 self::formatRobotPolicy( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] )
932 );
933 }
934
935 return $policy;
936 }
937
938 /**
939 * Converts a String robot policy into an associative array, to allow
940 * merging of several policies using array_merge().
941 * @param array|string $policy Returns empty array on null/false/'', transparent
942 * to already-converted arrays, converts string.
943 * @return array 'index' => \<indexpolicy\>, 'follow' => \<followpolicy\>
944 */
945 public static function formatRobotPolicy( $policy ) {
946 if ( is_array( $policy ) ) {
947 return $policy;
948 } elseif ( !$policy ) {
949 return array();
950 }
951
952 $policy = explode( ',', $policy );
953 $policy = array_map( 'trim', $policy );
954
955 $arr = array();
956 foreach ( $policy as $var ) {
957 if ( in_array( $var, array( 'index', 'noindex' ) ) ) {
958 $arr['index'] = $var;
959 } elseif ( in_array( $var, array( 'follow', 'nofollow' ) ) ) {
960 $arr['follow'] = $var;
961 }
962 }
963
964 return $arr;
965 }
966
967 /**
968 * If this request is a redirect view, send "redirected from" subtitle to
969 * the output. Returns true if the header was needed, false if this is not
970 * a redirect view. Handles both local and remote redirects.
971 *
972 * @return bool
973 */
974 public function showRedirectedFromHeader() {
975 global $wgRedirectSources;
976 $outputPage = $this->getContext()->getOutput();
977
978 $request = $this->getContext()->getRequest();
979 $rdfrom = $request->getVal( 'rdfrom' );
980
981 // Construct a URL for the current page view, but with the target title
982 $query = $request->getValues();
983 unset( $query['rdfrom'] );
984 unset( $query['title'] );
985 $redirectTargetUrl = $this->getTitle()->getLinkURL( $query );
986
987 if ( isset( $this->mRedirectedFrom ) ) {
988 // This is an internally redirected page view.
989 // We'll need a backlink to the source page for navigation.
990 if ( wfRunHooks( 'ArticleViewRedirect', array( &$this ) ) ) {
991 $redir = Linker::linkKnown(
992 $this->mRedirectedFrom,
993 null,
994 array(),
995 array( 'redirect' => 'no' )
996 );
997
998 $outputPage->addSubtitle( wfMessage( 'redirectedfrom' )->rawParams( $redir ) );
999
1000 // Add the script to update the displayed URL and
1001 // set the fragment if one was specified in the redirect
1002 $outputPage->addJsConfigVars( array(
1003 'wgInternalRedirectTargetUrl' => $redirectTargetUrl,
1004 ) );
1005 $outputPage->addModules( 'mediawiki.action.view.redirect' );
1006
1007 // Add a <link rel="canonical"> tag
1008 $outputPage->setCanonicalUrl( $this->getTitle()->getLocalURL() );
1009
1010 // Tell the output object that the user arrived at this article through a redirect
1011 $outputPage->setRedirectedFrom( $this->mRedirectedFrom );
1012
1013 return true;
1014 }
1015 } elseif ( $rdfrom ) {
1016 // This is an externally redirected view, from some other wiki.
1017 // If it was reported from a trusted site, supply a backlink.
1018 if ( $wgRedirectSources && preg_match( $wgRedirectSources, $rdfrom ) ) {
1019 $redir = Linker::makeExternalLink( $rdfrom, $rdfrom );
1020 $outputPage->addSubtitle( wfMessage( 'redirectedfrom' )->rawParams( $redir ) );
1021
1022 // Add the script to update the displayed URL
1023 $outputPage->addJsConfigVars( array(
1024 'wgInternalRedirectTargetUrl' => $redirectTargetUrl,
1025 ) );
1026 $outputPage->addModules( 'mediawiki.action.view.redirect' );
1027
1028 return true;
1029 }
1030 }
1031
1032 return false;
1033 }
1034
1035 /**
1036 * Show a header specific to the namespace currently being viewed, like
1037 * [[MediaWiki:Talkpagetext]]. For Article::view().
1038 */
1039 public function showNamespaceHeader() {
1040 if ( $this->getTitle()->isTalkPage() ) {
1041 if ( !wfMessage( 'talkpageheader' )->isDisabled() ) {
1042 $this->getContext()->getOutput()->wrapWikiMsg(
1043 "<div class=\"mw-talkpageheader\">\n$1\n</div>",
1044 array( 'talkpageheader' )
1045 );
1046 }
1047 }
1048 }
1049
1050 /**
1051 * Show the footer section of an ordinary page view
1052 */
1053 public function showViewFooter() {
1054 # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
1055 if ( $this->getTitle()->getNamespace() == NS_USER_TALK
1056 && IP::isValid( $this->getTitle()->getText() )
1057 ) {
1058 $this->getContext()->getOutput()->addWikiMsg( 'anontalkpagetext' );
1059 }
1060
1061 // Show a footer allowing the user to patrol the shown revision or page if possible
1062 $patrolFooterShown = $this->showPatrolFooter();
1063
1064 wfRunHooks( 'ArticleViewFooter', array( $this, $patrolFooterShown ) );
1065 }
1066
1067 /**
1068 * If patrol is possible, output a patrol UI box. This is called from the
1069 * footer section of ordinary page views. If patrol is not possible or not
1070 * desired, does nothing.
1071 * Side effect: When the patrol link is build, this method will call
1072 * OutputPage::preventClickjacking() and load mediawiki.page.patrol.ajax.
1073 *
1074 * @return bool
1075 */
1076 public function showPatrolFooter() {
1077 global $wgUseNPPatrol, $wgUseRCPatrol, $wgEnableAPI, $wgEnableWriteAPI;
1078
1079 $outputPage = $this->getContext()->getOutput();
1080 $user = $this->getContext()->getUser();
1081 $cache = wfGetMainCache();
1082 $rc = false;
1083
1084 if ( !$this->getTitle()->quickUserCan( 'patrol', $user )
1085 || !( $wgUseRCPatrol || $wgUseNPPatrol )
1086 ) {
1087 // Patrolling is disabled or the user isn't allowed to
1088 return false;
1089 }
1090
1091 wfProfileIn( __METHOD__ );
1092
1093 // New page patrol: Get the timestamp of the oldest revison which
1094 // the revision table holds for the given page. Then we look
1095 // whether it's within the RC lifespan and if it is, we try
1096 // to get the recentchanges row belonging to that entry
1097 // (with rc_new = 1).
1098
1099 // Check for cached results
1100 if ( $cache->get( wfMemcKey( 'NotPatrollablePage', $this->getTitle()->getArticleID() ) ) ) {
1101 wfProfileOut( __METHOD__ );
1102 return false;
1103 }
1104
1105 if ( $this->mRevision
1106 && !RecentChange::isInRCLifespan( $this->mRevision->getTimestamp(), 21600 )
1107 ) {
1108 // The current revision is already older than what could be in the RC table
1109 // 6h tolerance because the RC might not be cleaned out regularly
1110 wfProfileOut( __METHOD__ );
1111 return false;
1112 }
1113
1114 $dbr = wfGetDB( DB_SLAVE );
1115 $oldestRevisionTimestamp = $dbr->selectField(
1116 'revision',
1117 'MIN( rev_timestamp )',
1118 array( 'rev_page' => $this->getTitle()->getArticleID() ),
1119 __METHOD__
1120 );
1121
1122 if ( $oldestRevisionTimestamp
1123 && RecentChange::isInRCLifespan( $oldestRevisionTimestamp, 21600 )
1124 ) {
1125 // 6h tolerance because the RC might not be cleaned out regularly
1126 $rc = RecentChange::newFromConds(
1127 array(
1128 'rc_new' => 1,
1129 'rc_timestamp' => $oldestRevisionTimestamp,
1130 'rc_namespace' => $this->getTitle()->getNamespace(),
1131 'rc_cur_id' => $this->getTitle()->getArticleID(),
1132 'rc_patrolled' => 0
1133 ),
1134 __METHOD__,
1135 array( 'USE INDEX' => 'new_name_timestamp' )
1136 );
1137 }
1138
1139 if ( !$rc ) {
1140 // No RC entry around
1141
1142 // Cache the information we gathered above in case we can't patrol
1143 // Don't cache in case we can patrol as this could change
1144 $cache->set( wfMemcKey( 'NotPatrollablePage', $this->getTitle()->getArticleID() ), '1' );
1145
1146 wfProfileOut( __METHOD__ );
1147 return false;
1148 }
1149
1150 if ( $rc->getPerformer()->getName() == $user->getName() ) {
1151 // Don't show a patrol link for own creations. If the user could
1152 // patrol them, they already would be patrolled
1153 wfProfileOut( __METHOD__ );
1154 return false;
1155 }
1156
1157 $rcid = $rc->getAttribute( 'rc_id' );
1158
1159 $token = $user->getEditToken( $rcid );
1160
1161 $outputPage->preventClickjacking();
1162 if ( $wgEnableAPI && $wgEnableWriteAPI && $user->isAllowed( 'writeapi' ) ) {
1163 $outputPage->addModules( 'mediawiki.page.patrol.ajax' );
1164 }
1165
1166 $link = Linker::linkKnown(
1167 $this->getTitle(),
1168 wfMessage( 'markaspatrolledtext' )->escaped(),
1169 array(),
1170 array(
1171 'action' => 'markpatrolled',
1172 'rcid' => $rcid,
1173 'token' => $token,
1174 )
1175 );
1176
1177 $outputPage->addHTML(
1178 "<div class='patrollink'>" .
1179 wfMessage( 'markaspatrolledlink' )->rawParams( $link )->escaped() .
1180 '</div>'
1181 );
1182
1183 wfProfileOut( __METHOD__ );
1184 return true;
1185 }
1186
1187 /**
1188 * Show the error text for a missing article. For articles in the MediaWiki
1189 * namespace, show the default message text. To be called from Article::view().
1190 */
1191 public function showMissingArticle() {
1192 global $wgSend404Code;
1193
1194 $outputPage = $this->getContext()->getOutput();
1195 // Whether the page is a root user page of an existing user (but not a subpage)
1196 $validUserPage = false;
1197
1198 $title = $this->getTitle();
1199
1200 # Show info in user (talk) namespace. Does the user exist? Is he blocked?
1201 if ( $title->getNamespace() == NS_USER
1202 || $title->getNamespace() == NS_USER_TALK
1203 ) {
1204 $parts = explode( '/', $title->getText() );
1205 $rootPart = $parts[0];
1206 $user = User::newFromName( $rootPart, false /* allow IP users*/ );
1207 $ip = User::isIP( $rootPart );
1208 $block = Block::newFromTarget( $user, $user );
1209
1210 if ( !( $user && $user->isLoggedIn() ) && !$ip ) { # User does not exist
1211 $outputPage->wrapWikiMsg( "<div class=\"mw-userpage-userdoesnotexist error\">\n\$1\n</div>",
1212 array( 'userpage-userdoesnotexist-view', wfEscapeWikiText( $rootPart ) ) );
1213 } elseif ( !is_null( $block ) && $block->getType() != Block::TYPE_AUTO ) { # Show log extract if the user is currently blocked
1214 LogEventsList::showLogExtract(
1215 $outputPage,
1216 'block',
1217 MWNamespace::getCanonicalName( NS_USER ) . ':' . $block->getTarget(),
1218 '',
1219 array(
1220 'lim' => 1,
1221 'showIfEmpty' => false,
1222 'msgKey' => array(
1223 'blocked-notice-logextract',
1224 $user->getName() # Support GENDER in notice
1225 )
1226 )
1227 );
1228 $validUserPage = !$title->isSubpage();
1229 } else {
1230 $validUserPage = !$title->isSubpage();
1231 }
1232 }
1233
1234 wfRunHooks( 'ShowMissingArticle', array( $this ) );
1235
1236 // Give extensions a chance to hide their (unrelated) log entries
1237 $logTypes = array( 'delete', 'move' );
1238 $conds = array( "log_action != 'revision'" );
1239 wfRunHooks( 'Article::MissingArticleConditions', array( &$conds, $logTypes ) );
1240
1241 # Show delete and move logs
1242 $member = $title->getNamespace() . ':' . $title->getDBkey();
1243 // @todo: move optimization to showLogExtract()?
1244 if ( BloomCache::get( 'main' )->check( wfWikiId(), 'TitleHasLogs', $member ) ) {
1245 LogEventsList::showLogExtract( $outputPage, $logTypes, $title, '',
1246 array( 'lim' => 10,
1247 'conds' => $conds,
1248 'showIfEmpty' => false,
1249 'msgKey' => array( 'moveddeleted-notice' ) )
1250 );
1251 }
1252
1253 if ( !$this->mPage->hasViewableContent() && $wgSend404Code && !$validUserPage ) {
1254 // If there's no backing content, send a 404 Not Found
1255 // for better machine handling of broken links.
1256 $this->getContext()->getRequest()->response()->header( "HTTP/1.1 404 Not Found" );
1257 }
1258
1259 // Also apply the robot policy for nonexisting pages (even if a 404 was used for sanity)
1260 $policy = $this->getRobotPolicy( 'view' );
1261 $outputPage->setIndexPolicy( $policy['index'] );
1262 $outputPage->setFollowPolicy( $policy['follow'] );
1263
1264 $hookResult = wfRunHooks( 'BeforeDisplayNoArticleText', array( $this ) );
1265
1266 if ( !$hookResult ) {
1267 return;
1268 }
1269
1270 # Show error message
1271 $oldid = $this->getOldID();
1272 if ( $oldid ) {
1273 $text = wfMessage( 'missing-revision', $oldid )->plain();
1274 } elseif ( $title->getNamespace() === NS_MEDIAWIKI ) {
1275 // Use the default message text
1276 $text = $title->getDefaultMessageText();
1277 } elseif ( $title->quickUserCan( 'create', $this->getContext()->getUser() )
1278 && $title->quickUserCan( 'edit', $this->getContext()->getUser() )
1279 ) {
1280 $message = $this->getContext()->getUser()->isLoggedIn() ? 'noarticletext' : 'noarticletextanon';
1281 $text = wfMessage( $message )->plain();
1282 } else {
1283 $text = wfMessage( 'noarticletext-nopermission' )->plain();
1284 }
1285 $text = "<div class='noarticletext'>\n$text\n</div>";
1286
1287 $outputPage->addWikiText( $text );
1288 }
1289
1290 /**
1291 * If the revision requested for view is deleted, check permissions.
1292 * Send either an error message or a warning header to the output.
1293 *
1294 * @return bool True if the view is allowed, false if not.
1295 */
1296 public function showDeletedRevisionHeader() {
1297 if ( !$this->mRevision->isDeleted( Revision::DELETED_TEXT ) ) {
1298 // Not deleted
1299 return true;
1300 }
1301
1302 $outputPage = $this->getContext()->getOutput();
1303 $user = $this->getContext()->getUser();
1304 // If the user is not allowed to see it...
1305 if ( !$this->mRevision->userCan( Revision::DELETED_TEXT, $user ) ) {
1306 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1307 'rev-deleted-text-permission' );
1308
1309 return false;
1310 // If the user needs to confirm that they want to see it...
1311 } elseif ( $this->getContext()->getRequest()->getInt( 'unhide' ) != 1 ) {
1312 # Give explanation and add a link to view the revision...
1313 $oldid = intval( $this->getOldID() );
1314 $link = $this->getTitle()->getFullURL( "oldid={$oldid}&unhide=1" );
1315 $msg = $this->mRevision->isDeleted( Revision::DELETED_RESTRICTED ) ?
1316 'rev-suppressed-text-unhide' : 'rev-deleted-text-unhide';
1317 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1318 array( $msg, $link ) );
1319
1320 return false;
1321 // We are allowed to see...
1322 } else {
1323 $msg = $this->mRevision->isDeleted( Revision::DELETED_RESTRICTED ) ?
1324 'rev-suppressed-text-view' : 'rev-deleted-text-view';
1325 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n", $msg );
1326
1327 return true;
1328 }
1329 }
1330
1331 /**
1332 * Generate the navigation links when browsing through an article revisions
1333 * It shows the information as:
1334 * Revision as of \<date\>; view current revision
1335 * \<- Previous version | Next Version -\>
1336 *
1337 * @param int $oldid Revision ID of this article revision
1338 */
1339 public function setOldSubtitle( $oldid = 0 ) {
1340 if ( !wfRunHooks( 'DisplayOldSubtitle', array( &$this, &$oldid ) ) ) {
1341 return;
1342 }
1343
1344 $unhide = $this->getContext()->getRequest()->getInt( 'unhide' ) == 1;
1345
1346 # Cascade unhide param in links for easy deletion browsing
1347 $extraParams = array();
1348 if ( $unhide ) {
1349 $extraParams['unhide'] = 1;
1350 }
1351
1352 if ( $this->mRevision && $this->mRevision->getId() === $oldid ) {
1353 $revision = $this->mRevision;
1354 } else {
1355 $revision = Revision::newFromId( $oldid );
1356 }
1357
1358 $timestamp = $revision->getTimestamp();
1359
1360 $current = ( $oldid == $this->mPage->getLatest() );
1361 $language = $this->getContext()->getLanguage();
1362 $user = $this->getContext()->getUser();
1363
1364 $td = $language->userTimeAndDate( $timestamp, $user );
1365 $tddate = $language->userDate( $timestamp, $user );
1366 $tdtime = $language->userTime( $timestamp, $user );
1367
1368 # Show user links if allowed to see them. If hidden, then show them only if requested...
1369 $userlinks = Linker::revUserTools( $revision, !$unhide );
1370
1371 $infomsg = $current && !wfMessage( 'revision-info-current' )->isDisabled()
1372 ? 'revision-info-current'
1373 : 'revision-info';
1374
1375 $outputPage = $this->getContext()->getOutput();
1376 $outputPage->addSubtitle( "<div id=\"mw-{$infomsg}\">" . wfMessage( $infomsg,
1377 $td )->rawParams( $userlinks )->params( $revision->getID(), $tddate,
1378 $tdtime, $revision->getUserText() )->rawParams( Linker::revComment( $revision, true, true ) )->parse() . "</div>" );
1379
1380 $lnk = $current
1381 ? wfMessage( 'currentrevisionlink' )->escaped()
1382 : Linker::linkKnown(
1383 $this->getTitle(),
1384 wfMessage( 'currentrevisionlink' )->escaped(),
1385 array(),
1386 $extraParams
1387 );
1388 $curdiff = $current
1389 ? wfMessage( 'diff' )->escaped()
1390 : Linker::linkKnown(
1391 $this->getTitle(),
1392 wfMessage( 'diff' )->escaped(),
1393 array(),
1394 array(
1395 'diff' => 'cur',
1396 'oldid' => $oldid
1397 ) + $extraParams
1398 );
1399 $prev = $this->getTitle()->getPreviousRevisionID( $oldid );
1400 $prevlink = $prev
1401 ? Linker::linkKnown(
1402 $this->getTitle(),
1403 wfMessage( 'previousrevision' )->escaped(),
1404 array(),
1405 array(
1406 'direction' => 'prev',
1407 'oldid' => $oldid
1408 ) + $extraParams
1409 )
1410 : wfMessage( 'previousrevision' )->escaped();
1411 $prevdiff = $prev
1412 ? Linker::linkKnown(
1413 $this->getTitle(),
1414 wfMessage( 'diff' )->escaped(),
1415 array(),
1416 array(
1417 'diff' => 'prev',
1418 'oldid' => $oldid
1419 ) + $extraParams
1420 )
1421 : wfMessage( 'diff' )->escaped();
1422 $nextlink = $current
1423 ? wfMessage( 'nextrevision' )->escaped()
1424 : Linker::linkKnown(
1425 $this->getTitle(),
1426 wfMessage( 'nextrevision' )->escaped(),
1427 array(),
1428 array(
1429 'direction' => 'next',
1430 'oldid' => $oldid
1431 ) + $extraParams
1432 );
1433 $nextdiff = $current
1434 ? wfMessage( 'diff' )->escaped()
1435 : Linker::linkKnown(
1436 $this->getTitle(),
1437 wfMessage( 'diff' )->escaped(),
1438 array(),
1439 array(
1440 'diff' => 'next',
1441 'oldid' => $oldid
1442 ) + $extraParams
1443 );
1444
1445 $cdel = Linker::getRevDeleteLink( $user, $revision, $this->getTitle() );
1446 if ( $cdel !== '' ) {
1447 $cdel .= ' ';
1448 }
1449
1450 $outputPage->addSubtitle( "<div id=\"mw-revision-nav\">" . $cdel .
1451 wfMessage( 'revision-nav' )->rawParams(
1452 $prevdiff, $prevlink, $lnk, $curdiff, $nextlink, $nextdiff
1453 )->escaped() . "</div>" );
1454 }
1455
1456 /**
1457 * Return the HTML for the top of a redirect page
1458 *
1459 * Chances are you should just be using the ParserOutput from
1460 * WikitextContent::getParserOutput instead of calling this for redirects.
1461 *
1462 * @param Title|array $target Destination(s) to redirect
1463 * @param bool $appendSubtitle [optional]
1464 * @param bool $forceKnown Should the image be shown as a bluelink regardless of existence?
1465 * @return string Containing HTML with redirect link
1466 */
1467 public function viewRedirect( $target, $appendSubtitle = true, $forceKnown = false ) {
1468 $lang = $this->getTitle()->getPageLanguage();
1469 if ( $appendSubtitle ) {
1470 $out = $this->getContext()->getOutput();
1471 $out->addSubtitle( wfMessage( 'redirectpagesub' )->parse() );
1472 }
1473 return static::getRedirectHeaderHtml( $lang, $target, $forceKnown );
1474 }
1475
1476 /**
1477 * Return the HTML for the top of a redirect page
1478 *
1479 * Chances are you should just be using the ParserOutput from
1480 * WikitextContent::getParserOutput instead of calling this for redirects.
1481 *
1482 * @since 1.23
1483 * @param Language $lang
1484 * @param Title|array $target Destination(s) to redirect
1485 * @param bool $forceKnown Should the image be shown as a bluelink regardless of existence?
1486 * @return string Containing HTML with redirect link
1487 */
1488 public static function getRedirectHeaderHtml( Language $lang, $target, $forceKnown = false ) {
1489 global $wgStylePath;
1490
1491 if ( !is_array( $target ) ) {
1492 $target = array( $target );
1493 }
1494
1495 $imageDir = $lang->getDir();
1496
1497 // the loop prepends the arrow image before the link, so the first case needs to be outside
1498
1499 /** @var $title Title */
1500 $title = array_shift( $target );
1501
1502 if ( $forceKnown ) {
1503 $link = Linker::linkKnown( $title, htmlspecialchars( $title->getFullText() ) );
1504 } else {
1505 $link = Linker::link( $title, htmlspecialchars( $title->getFullText() ) );
1506 }
1507
1508 $nextRedirect = $wgStylePath . '/common/images/nextredirect' . $imageDir . '.png';
1509 $alt = $lang->isRTL() ? '←' : '→';
1510
1511 // Automatically append redirect=no to each link, since most of them are
1512 // redirect pages themselves.
1513 /** @var Title $rt */
1514 foreach ( $target as $rt ) {
1515 $link .= Html::element( 'img', array( 'src' => $nextRedirect, 'alt' => $alt ) );
1516 if ( $forceKnown ) {
1517 $link .= Linker::linkKnown(
1518 $rt,
1519 htmlspecialchars( $rt->getFullText(),
1520 array(),
1521 array( 'redirect' => 'no' )
1522 )
1523 );
1524 } else {
1525 $link .= Linker::link(
1526 $rt,
1527 htmlspecialchars( $rt->getFullText() ),
1528 array(),
1529 array( 'redirect' => 'no' )
1530 );
1531 }
1532 }
1533
1534 $imageUrl = $wgStylePath . '/common/images/redirect' . $imageDir . '.png';
1535 return '<div class="redirectMsg">' .
1536 Html::element( 'img', array( 'src' => $imageUrl, 'alt' => '#REDIRECT' ) ) .
1537 '<span class="redirectText">' . $link . '</span></div>';
1538 }
1539
1540 /**
1541 * Handle action=render
1542 */
1543 public function render() {
1544 $this->getContext()->getRequest()->response()->header( 'X-Robots-Tag: noindex' );
1545 $this->getContext()->getOutput()->setArticleBodyOnly( true );
1546 $this->getContext()->getOutput()->enableSectionEditLinks( false );
1547 $this->view();
1548 }
1549
1550 /**
1551 * action=protect handler
1552 */
1553 public function protect() {
1554 $form = new ProtectionForm( $this );
1555 $form->execute();
1556 }
1557
1558 /**
1559 * action=unprotect handler (alias)
1560 */
1561 public function unprotect() {
1562 $this->protect();
1563 }
1564
1565 /**
1566 * UI entry point for page deletion
1567 */
1568 public function delete() {
1569 # This code desperately needs to be totally rewritten
1570
1571 $title = $this->getTitle();
1572 $user = $this->getContext()->getUser();
1573
1574 # Check permissions
1575 $permissionErrors = $title->getUserPermissionsErrors( 'delete', $user );
1576 if ( count( $permissionErrors ) ) {
1577 throw new PermissionsError( 'delete', $permissionErrors );
1578 }
1579
1580 # Read-only check...
1581 if ( wfReadOnly() ) {
1582 throw new ReadOnlyError;
1583 }
1584
1585 # Better double-check that it hasn't been deleted yet!
1586 $this->mPage->loadPageData( 'fromdbmaster' );
1587 if ( !$this->mPage->exists() ) {
1588 $deleteLogPage = new LogPage( 'delete' );
1589 $outputPage = $this->getContext()->getOutput();
1590 $outputPage->setPageTitle( wfMessage( 'cannotdelete-title', $title->getPrefixedText() ) );
1591 $outputPage->wrapWikiMsg( "<div class=\"error mw-error-cannotdelete\">\n$1\n</div>",
1592 array( 'cannotdelete', wfEscapeWikiText( $title->getPrefixedText() ) )
1593 );
1594 $outputPage->addHTML(
1595 Xml::element( 'h2', null, $deleteLogPage->getName()->text() )
1596 );
1597 LogEventsList::showLogExtract(
1598 $outputPage,
1599 'delete',
1600 $title
1601 );
1602
1603 return;
1604 }
1605
1606 $request = $this->getContext()->getRequest();
1607 $deleteReasonList = $request->getText( 'wpDeleteReasonList', 'other' );
1608 $deleteReason = $request->getText( 'wpReason' );
1609
1610 if ( $deleteReasonList == 'other' ) {
1611 $reason = $deleteReason;
1612 } elseif ( $deleteReason != '' ) {
1613 // Entry from drop down menu + additional comment
1614 $colonseparator = wfMessage( 'colon-separator' )->inContentLanguage()->text();
1615 $reason = $deleteReasonList . $colonseparator . $deleteReason;
1616 } else {
1617 $reason = $deleteReasonList;
1618 }
1619
1620 if ( $request->wasPosted() && $user->matchEditToken( $request->getVal( 'wpEditToken' ),
1621 array( 'delete', $this->getTitle()->getPrefixedText() ) )
1622 ) {
1623 # Flag to hide all contents of the archived revisions
1624 $suppress = $request->getVal( 'wpSuppress' ) && $user->isAllowed( 'suppressrevision' );
1625
1626 $this->doDelete( $reason, $suppress );
1627
1628 WatchAction::doWatchOrUnwatch( $request->getCheck( 'wpWatch' ), $title, $user );
1629
1630 return;
1631 }
1632
1633 // Generate deletion reason
1634 $hasHistory = false;
1635 if ( !$reason ) {
1636 try {
1637 $reason = $this->generateReason( $hasHistory );
1638 } catch ( MWException $e ) {
1639 # if a page is horribly broken, we still want to be able to
1640 # delete it. So be lenient about errors here.
1641 wfDebug( "Error while building auto delete summary: $e" );
1642 $reason = '';
1643 }
1644 }
1645
1646 // If the page has a history, insert a warning
1647 if ( $hasHistory ) {
1648 $title = $this->getTitle();
1649
1650 // The following can use the real revision count as this is only being shown for users that can delete
1651 // this page.
1652 // This, as a side-effect, also makes sure that the following query isn't being run for pages with a
1653 // larger history, unless the user has the 'bigdelete' right (and is about to delete this page).
1654 $dbr = wfGetDB( DB_SLAVE );
1655 $revisions = $edits = (int)$dbr->selectField(
1656 'revision',
1657 'COUNT(rev_page)',
1658 array( 'rev_page' => $title->getArticleID() ),
1659 __METHOD__
1660 );
1661
1662 // @todo FIXME: i18n issue/patchwork message
1663 $this->getContext()->getOutput()->addHTML( '<strong class="mw-delete-warning-revisions">' .
1664 wfMessage( 'historywarning' )->numParams( $revisions )->parse() .
1665 wfMessage( 'word-separator' )->plain() . Linker::linkKnown( $title,
1666 wfMessage( 'history' )->escaped(),
1667 array( 'rel' => 'archives' ),
1668 array( 'action' => 'history' ) ) .
1669 '</strong>'
1670 );
1671
1672 if ( $title->isBigDeletion() ) {
1673 global $wgDeleteRevisionsLimit;
1674 $this->getContext()->getOutput()->wrapWikiMsg( "<div class='error'>\n$1\n</div>\n",
1675 array(
1676 'delete-warning-toobig',
1677 $this->getContext()->getLanguage()->formatNum( $wgDeleteRevisionsLimit )
1678 )
1679 );
1680 }
1681 }
1682
1683 $this->confirmDelete( $reason );
1684 }
1685
1686 /**
1687 * Output deletion confirmation dialog
1688 * @todo FIXME: Move to another file?
1689 * @param string $reason Prefilled reason
1690 */
1691 public function confirmDelete( $reason ) {
1692 wfDebug( "Article::confirmDelete\n" );
1693
1694 $title = $this->getTitle();
1695 $outputPage = $this->getContext()->getOutput();
1696 $outputPage->setPageTitle( wfMessage( 'delete-confirm', $title->getPrefixedText() ) );
1697 $outputPage->addBacklinkSubtitle( $title );
1698 $outputPage->setRobotPolicy( 'noindex,nofollow' );
1699 $backlinkCache = $title->getBacklinkCache();
1700 if ( $backlinkCache->hasLinks( 'pagelinks' ) || $backlinkCache->hasLinks( 'templatelinks' ) ) {
1701 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1702 'deleting-backlinks-warning' );
1703 }
1704 $outputPage->addWikiMsg( 'confirmdeletetext' );
1705
1706 wfRunHooks( 'ArticleConfirmDelete', array( $this, $outputPage, &$reason ) );
1707
1708 $user = $this->getContext()->getUser();
1709
1710 if ( $user->isAllowed( 'suppressrevision' ) ) {
1711 $suppress = "<tr id=\"wpDeleteSuppressRow\">
1712 <td></td>
1713 <td class='mw-input'><strong>" .
1714 Xml::checkLabel( wfMessage( 'revdelete-suppress' )->text(),
1715 'wpSuppress', 'wpSuppress', false, array( 'tabindex' => '4' ) ) .
1716 "</strong></td>
1717 </tr>";
1718 } else {
1719 $suppress = '';
1720 }
1721 $checkWatch = $user->getBoolOption( 'watchdeletion' ) || $user->isWatched( $title );
1722
1723 $form = Xml::openElement( 'form', array( 'method' => 'post',
1724 'action' => $title->getLocalURL( 'action=delete' ), 'id' => 'deleteconfirm' ) ) .
1725 Xml::openElement( 'fieldset', array( 'id' => 'mw-delete-table' ) ) .
1726 Xml::tags( 'legend', null, wfMessage( 'delete-legend' )->escaped() ) .
1727 Xml::openElement( 'table', array( 'id' => 'mw-deleteconfirm-table' ) ) .
1728 "<tr id=\"wpDeleteReasonListRow\">
1729 <td class='mw-label'>" .
1730 Xml::label( wfMessage( 'deletecomment' )->text(), 'wpDeleteReasonList' ) .
1731 "</td>
1732 <td class='mw-input'>" .
1733 Xml::listDropDown(
1734 'wpDeleteReasonList',
1735 wfMessage( 'deletereason-dropdown' )->inContentLanguage()->text(),
1736 wfMessage( 'deletereasonotherlist' )->inContentLanguage()->text(),
1737 '',
1738 'wpReasonDropDown',
1739 1
1740 ) .
1741 "</td>
1742 </tr>
1743 <tr id=\"wpDeleteReasonRow\">
1744 <td class='mw-label'>" .
1745 Xml::label( wfMessage( 'deleteotherreason' )->text(), 'wpReason' ) .
1746 "</td>
1747 <td class='mw-input'>" .
1748 Html::input( 'wpReason', $reason, 'text', array(
1749 'size' => '60',
1750 'maxlength' => '255',
1751 'tabindex' => '2',
1752 'id' => 'wpReason',
1753 'autofocus'
1754 ) ) .
1755 "</td>
1756 </tr>";
1757
1758 # Disallow watching if user is not logged in
1759 if ( $user->isLoggedIn() ) {
1760 $form .= "
1761 <tr>
1762 <td></td>
1763 <td class='mw-input'>" .
1764 Xml::checkLabel( wfMessage( 'watchthis' )->text(),
1765 'wpWatch', 'wpWatch', $checkWatch, array( 'tabindex' => '3' ) ) .
1766 "</td>
1767 </tr>";
1768 }
1769
1770 $form .= "
1771 $suppress
1772 <tr>
1773 <td></td>
1774 <td class='mw-submit'>" .
1775 Xml::submitButton( wfMessage( 'deletepage' )->text(),
1776 array( 'name' => 'wpConfirmB', 'id' => 'wpConfirmB', 'tabindex' => '5' ) ) .
1777 "</td>
1778 </tr>" .
1779 Xml::closeElement( 'table' ) .
1780 Xml::closeElement( 'fieldset' ) .
1781 Html::hidden(
1782 'wpEditToken',
1783 $user->getEditToken( array( 'delete', $title->getPrefixedText() ) )
1784 ) .
1785 Xml::closeElement( 'form' );
1786
1787 if ( $user->isAllowed( 'editinterface' ) ) {
1788 $dropdownTitle = Title::makeTitle( NS_MEDIAWIKI, 'Deletereason-dropdown' );
1789 $link = Linker::link(
1790 $dropdownTitle,
1791 wfMessage( 'delete-edit-reasonlist' )->escaped(),
1792 array(),
1793 array( 'action' => 'edit' )
1794 );
1795 $form .= '<p class="mw-delete-editreasons">' . $link . '</p>';
1796 }
1797
1798 $outputPage->addHTML( $form );
1799
1800 $deleteLogPage = new LogPage( 'delete' );
1801 $outputPage->addHTML( Xml::element( 'h2', null, $deleteLogPage->getName()->text() ) );
1802 LogEventsList::showLogExtract( $outputPage, 'delete', $title );
1803 }
1804
1805 /**
1806 * Perform a deletion and output success or failure messages
1807 * @param string $reason
1808 * @param bool $suppress
1809 */
1810 public function doDelete( $reason, $suppress = false ) {
1811 $error = '';
1812 $outputPage = $this->getContext()->getOutput();
1813 $status = $this->mPage->doDeleteArticleReal( $reason, $suppress, 0, true, $error );
1814
1815 if ( $status->isGood() ) {
1816 $deleted = $this->getTitle()->getPrefixedText();
1817
1818 $outputPage->setPageTitle( wfMessage( 'actioncomplete' ) );
1819 $outputPage->setRobotPolicy( 'noindex,nofollow' );
1820
1821 $loglink = '[[Special:Log/delete|' . wfMessage( 'deletionlog' )->text() . ']]';
1822
1823 $outputPage->addWikiMsg( 'deletedtext', wfEscapeWikiText( $deleted ), $loglink );
1824 $outputPage->returnToMain( false );
1825 } else {
1826 $outputPage->setPageTitle(
1827 wfMessage( 'cannotdelete-title',
1828 $this->getTitle()->getPrefixedText() )
1829 );
1830
1831 if ( $error == '' ) {
1832 $outputPage->addWikiText(
1833 "<div class=\"error mw-error-cannotdelete\">\n" . $status->getWikiText() . "\n</div>"
1834 );
1835 $deleteLogPage = new LogPage( 'delete' );
1836 $outputPage->addHTML( Xml::element( 'h2', null, $deleteLogPage->getName()->text() ) );
1837
1838 LogEventsList::showLogExtract(
1839 $outputPage,
1840 'delete',
1841 $this->getTitle()
1842 );
1843 } else {
1844 $outputPage->addHTML( $error );
1845 }
1846 }
1847 }
1848
1849 /* Caching functions */
1850
1851 /**
1852 * checkLastModified returns true if it has taken care of all
1853 * output to the client that is necessary for this request.
1854 * (that is, it has sent a cached version of the page)
1855 *
1856 * @return bool True if cached version send, false otherwise
1857 */
1858 protected function tryFileCache() {
1859 static $called = false;
1860
1861 if ( $called ) {
1862 wfDebug( "Article::tryFileCache(): called twice!?\n" );
1863 return false;
1864 }
1865
1866 $called = true;
1867 if ( $this->isFileCacheable() ) {
1868 $cache = HTMLFileCache::newFromTitle( $this->getTitle(), 'view' );
1869 if ( $cache->isCacheGood( $this->mPage->getTouched() ) ) {
1870 wfDebug( "Article::tryFileCache(): about to load file\n" );
1871 $cache->loadFromFileCache( $this->getContext() );
1872 return true;
1873 } else {
1874 wfDebug( "Article::tryFileCache(): starting buffer\n" );
1875 ob_start( array( &$cache, 'saveToFileCache' ) );
1876 }
1877 } else {
1878 wfDebug( "Article::tryFileCache(): not cacheable\n" );
1879 }
1880
1881 return false;
1882 }
1883
1884 /**
1885 * Check if the page can be cached
1886 * @return bool
1887 */
1888 public function isFileCacheable() {
1889 $cacheable = false;
1890
1891 if ( HTMLFileCache::useFileCache( $this->getContext() ) ) {
1892 $cacheable = $this->mPage->getID()
1893 && !$this->mRedirectedFrom && !$this->getTitle()->isRedirect();
1894 // Extension may have reason to disable file caching on some pages.
1895 if ( $cacheable ) {
1896 $cacheable = wfRunHooks( 'IsFileCacheable', array( &$this ) );
1897 }
1898 }
1899
1900 return $cacheable;
1901 }
1902
1903 /**#@-*/
1904
1905 /**
1906 * Lightweight method to get the parser output for a page, checking the parser cache
1907 * and so on. Doesn't consider most of the stuff that WikiPage::view is forced to
1908 * consider, so it's not appropriate to use there.
1909 *
1910 * @since 1.16 (r52326) for LiquidThreads
1911 *
1912 * @param int|null $oldid Revision ID or null
1913 * @param User $user The relevant user
1914 * @return ParserOutput|bool ParserOutput or false if the given revision ID is not found
1915 */
1916 public function getParserOutput( $oldid = null, User $user = null ) {
1917 //XXX: bypasses mParserOptions and thus setParserOptions()
1918
1919 if ( $user === null ) {
1920 $parserOptions = $this->getParserOptions();
1921 } else {
1922 $parserOptions = $this->mPage->makeParserOptions( $user );
1923 }
1924
1925 return $this->mPage->getParserOutput( $parserOptions, $oldid );
1926 }
1927
1928 /**
1929 * Override the ParserOptions used to render the primary article wikitext.
1930 *
1931 * @param ParserOptions $options
1932 * @throws MWException If the parser options where already initialized.
1933 */
1934 public function setParserOptions( ParserOptions $options ) {
1935 if ( $this->mParserOptions ) {
1936 throw new MWException( "can't change parser options after they have already been set" );
1937 }
1938
1939 // clone, so if $options is modified later, it doesn't confuse the parser cache.
1940 $this->mParserOptions = clone $options;
1941 }
1942
1943 /**
1944 * Get parser options suitable for rendering the primary article wikitext
1945 * @return ParserOptions
1946 */
1947 public function getParserOptions() {
1948 if ( !$this->mParserOptions ) {
1949 $this->mParserOptions = $this->mPage->makeParserOptions( $this->getContext() );
1950 }
1951 // Clone to allow modifications of the return value without affecting cache
1952 return clone $this->mParserOptions;
1953 }
1954
1955 /**
1956 * Sets the context this Article is executed in
1957 *
1958 * @param IContextSource $context
1959 * @since 1.18
1960 */
1961 public function setContext( $context ) {
1962 $this->mContext = $context;
1963 }
1964
1965 /**
1966 * Gets the context this Article is executed in
1967 *
1968 * @return IContextSource
1969 * @since 1.18
1970 */
1971 public function getContext() {
1972 if ( $this->mContext instanceof IContextSource ) {
1973 return $this->mContext;
1974 } else {
1975 wfDebug( __METHOD__ . " called and \$mContext is null. " .
1976 "Return RequestContext::getMain(); for sanity\n" );
1977 return RequestContext::getMain();
1978 }
1979 }
1980
1981 /**
1982 * Use PHP's magic __get handler to handle accessing of
1983 * raw WikiPage fields for backwards compatibility.
1984 *
1985 * @param string $fname Field name
1986 * @return mixed
1987 */
1988 public function __get( $fname ) {
1989 if ( property_exists( $this->mPage, $fname ) ) {
1990 #wfWarn( "Access to raw $fname field " . __CLASS__ );
1991 return $this->mPage->$fname;
1992 }
1993 trigger_error( 'Inaccessible property via __get(): ' . $fname, E_USER_NOTICE );
1994 }
1995
1996 /**
1997 * Use PHP's magic __set handler to handle setting of
1998 * raw WikiPage fields for backwards compatibility.
1999 *
2000 * @param string $fname Field name
2001 * @param mixed $fvalue New value
2002 */
2003 public function __set( $fname, $fvalue ) {
2004 if ( property_exists( $this->mPage, $fname ) ) {
2005 #wfWarn( "Access to raw $fname field of " . __CLASS__ );
2006 $this->mPage->$fname = $fvalue;
2007 // Note: extensions may want to toss on new fields
2008 } elseif ( !in_array( $fname, array( 'mContext', 'mPage' ) ) ) {
2009 $this->mPage->$fname = $fvalue;
2010 } else {
2011 trigger_error( 'Inaccessible property via __set(): ' . $fname, E_USER_NOTICE );
2012 }
2013 }
2014
2015 /**
2016 * Use PHP's magic __call handler to transform instance calls to
2017 * WikiPage functions for backwards compatibility.
2018 *
2019 * @param string $fname Name of called method
2020 * @param array $args Arguments to the method
2021 * @return mixed
2022 */
2023 public function __call( $fname, $args ) {
2024 if ( is_callable( array( $this->mPage, $fname ) ) ) {
2025 #wfWarn( "Call to " . __CLASS__ . "::$fname; please use WikiPage instead" );
2026 return call_user_func_array( array( $this->mPage, $fname ), $args );
2027 }
2028 trigger_error( 'Inaccessible function via __call(): ' . $fname, E_USER_ERROR );
2029 }
2030
2031 // ****** B/C functions to work-around PHP silliness with __call and references ****** //
2032
2033 /**
2034 * @param array $limit
2035 * @param array $expiry
2036 * @param bool $cascade
2037 * @param string $reason
2038 * @param User $user
2039 * @return Status
2040 */
2041 public function doUpdateRestrictions( array $limit, array $expiry, &$cascade,
2042 $reason, User $user
2043 ) {
2044 return $this->mPage->doUpdateRestrictions( $limit, $expiry, $cascade, $reason, $user );
2045 }
2046
2047 /**
2048 * @param array $limit
2049 * @param string $reason
2050 * @param int $cascade
2051 * @param array $expiry
2052 * @return bool
2053 */
2054 public function updateRestrictions( $limit = array(), $reason = '',
2055 &$cascade = 0, $expiry = array()
2056 ) {
2057 return $this->mPage->doUpdateRestrictions(
2058 $limit,
2059 $expiry,
2060 $cascade,
2061 $reason,
2062 $this->getContext()->getUser()
2063 );
2064 }
2065
2066 /**
2067 * @param string $reason
2068 * @param bool $suppress
2069 * @param int $id
2070 * @param bool $commit
2071 * @param string $error
2072 * @return bool
2073 */
2074 public function doDeleteArticle( $reason, $suppress = false, $id = 0,
2075 $commit = true, &$error = ''
2076 ) {
2077 return $this->mPage->doDeleteArticle( $reason, $suppress, $id, $commit, $error );
2078 }
2079
2080 /**
2081 * @param string $fromP
2082 * @param string $summary
2083 * @param string $token
2084 * @param bool $bot
2085 * @param array $resultDetails
2086 * @param User|null $user
2087 * @return array
2088 */
2089 public function doRollback( $fromP, $summary, $token, $bot, &$resultDetails, User $user = null ) {
2090 $user = is_null( $user ) ? $this->getContext()->getUser() : $user;
2091 return $this->mPage->doRollback( $fromP, $summary, $token, $bot, $resultDetails, $user );
2092 }
2093
2094 /**
2095 * @param string $fromP
2096 * @param string $summary
2097 * @param bool $bot
2098 * @param array $resultDetails
2099 * @param User|null $guser
2100 * @return array
2101 */
2102 public function commitRollback( $fromP, $summary, $bot, &$resultDetails, User $guser = null ) {
2103 $guser = is_null( $guser ) ? $this->getContext()->getUser() : $guser;
2104 return $this->mPage->commitRollback( $fromP, $summary, $bot, $resultDetails, $guser );
2105 }
2106
2107 /**
2108 * @param bool $hasHistory
2109 * @return mixed
2110 */
2111 public function generateReason( &$hasHistory ) {
2112 $title = $this->mPage->getTitle();
2113 $handler = ContentHandler::getForTitle( $title );
2114 return $handler->getAutoDeleteReason( $title, $hasHistory );
2115 }
2116
2117 // ****** B/C functions for static methods ( __callStatic is PHP>=5.3 ) ****** //
2118
2119 /**
2120 * @return array
2121 *
2122 * @deprecated since 1.24, use WikiPage::selectFields() instead
2123 */
2124 public static function selectFields() {
2125 wfDeprecated( __METHOD__, '1.24' );
2126 return WikiPage::selectFields();
2127 }
2128
2129 /**
2130 * @param Title $title
2131 *
2132 * @deprecated since 1.24, use WikiPage::onArticleCreate() instead
2133 */
2134 public static function onArticleCreate( $title ) {
2135 wfDeprecated( __METHOD__, '1.24' );
2136 WikiPage::onArticleCreate( $title );
2137 }
2138
2139 /**
2140 * @param Title $title
2141 *
2142 * @deprecated since 1.24, use WikiPage::onArticleDelete() instead
2143 */
2144 public static function onArticleDelete( $title ) {
2145 wfDeprecated( __METHOD__, '1.24' );
2146 WikiPage::onArticleDelete( $title );
2147 }
2148
2149 /**
2150 * @param Title $title
2151 *
2152 * @deprecated since 1.24, use WikiPage::onArticleEdit() instead
2153 */
2154 public static function onArticleEdit( $title ) {
2155 wfDeprecated( __METHOD__, '1.24' );
2156 WikiPage::onArticleEdit( $title );
2157 }
2158
2159 /**
2160 * @param string $oldtext
2161 * @param string $newtext
2162 * @param int $flags
2163 * @return string
2164 * @deprecated since 1.21, use ContentHandler::getAutosummary() instead
2165 */
2166 public static function getAutosummary( $oldtext, $newtext, $flags ) {
2167 return WikiPage::getAutosummary( $oldtext, $newtext, $flags );
2168 }
2169 // ******
2170 }
Wiklou, le Wiki du Wiklou