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Merge "Set rup/roa-rup autonym to "armãneashti""
[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 public $mContentObject;
57
58 /** @var bool Is the content ($mContent) already loaded? */
59 public $mContentLoaded = false;
60
61 /** @var int|null The oldid of the article that is to be shown, 0 for the current revision */
62 public $mOldId;
63
64 /** @var Title Title from which we were redirected here */
65 public $mRedirectedFrom = null;
66
67 /** @var string|bool URL to redirect to or false if none */
68 public $mRedirectUrl = false;
69
70 /** @var int Revision ID of revision we are working on */
71 public $mRevIdFetched = 0;
72
73 /** @var Revision Revision we are working on */
74 public $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 $msg = $this->getContext()->msg( 'difference-missing-revision' )
794 ->params( $oldid )
795 ->numParams( 1 )
796 ->parseAsBlock();
797 $this->getContext()->getOutput()->addHtml( $msg );
798 return;
799 }
800
801 $contentHandler = $rev->getContentHandler();
802 $de = $contentHandler->createDifferenceEngine(
803 $this->getContext(),
804 $oldid,
805 $diff,
806 $rcid,
807 $purge,
808 $unhide
809 );
810
811 // DifferenceEngine directly fetched the revision:
812 $this->mRevIdFetched = $de->mNewid;
813 $de->showDiffPage( $diffOnly );
814
815 // Run view updates for the newer revision being diffed (and shown
816 // below the diff if not $diffOnly).
817 list( $old, $new ) = $de->mapDiffPrevNext( $oldid, $diff );
818 // New can be false, convert it to 0 - this conveniently means the latest revision
819 $this->mPage->doViewUpdates( $user, (int)$new );
820 }
821
822 /**
823 * Show a page view for a page formatted as CSS or JavaScript. To be called by
824 * Article::view() only.
825 *
826 * This exists mostly to serve the deprecated ShowRawCssJs hook (used to customize these views).
827 * It has been replaced by the ContentGetParserOutput hook, which lets you do the same but with
828 * more flexibility.
829 *
830 * @param bool $showCacheHint Whether to show a message telling the user
831 * to clear the browser cache (default: true).
832 */
833 protected function showCssOrJsPage( $showCacheHint = true ) {
834 $outputPage = $this->getContext()->getOutput();
835
836 if ( $showCacheHint ) {
837 $dir = $this->getContext()->getLanguage()->getDir();
838 $lang = $this->getContext()->getLanguage()->getCode();
839
840 $outputPage->wrapWikiMsg(
841 "<div id='mw-clearyourcache' lang='$lang' dir='$dir' class='mw-content-$dir'>\n$1\n</div>",
842 'clearyourcache'
843 );
844 }
845
846 $this->fetchContentObject();
847
848 if ( $this->mContentObject ) {
849 // Give hooks a chance to customise the output
850 if ( ContentHandler::runLegacyHooks(
851 'ShowRawCssJs',
852 array( $this->mContentObject, $this->getTitle(), $outputPage ) )
853 ) {
854 // If no legacy hooks ran, display the content of the parser output, including RL modules,
855 // but excluding metadata like categories and language links
856 $po = $this->mContentObject->getParserOutput( $this->getTitle() );
857 $outputPage->addParserOutputContent( $po );
858 }
859 }
860 }
861
862 /**
863 * Get the robot policy to be used for the current view
864 * @param string $action The action= GET parameter
865 * @param ParserOutput|null $pOutput
866 * @return array The policy that should be set
867 * @todo actions other than 'view'
868 */
869 public function getRobotPolicy( $action, $pOutput = null ) {
870 global $wgArticleRobotPolicies, $wgNamespaceRobotPolicies, $wgDefaultRobotPolicy;
871
872 $ns = $this->getTitle()->getNamespace();
873
874 # Don't index user and user talk pages for blocked users (bug 11443)
875 if ( ( $ns == NS_USER || $ns == NS_USER_TALK ) && !$this->getTitle()->isSubpage() ) {
876 $specificTarget = null;
877 $vagueTarget = null;
878 $titleText = $this->getTitle()->getText();
879 if ( IP::isValid( $titleText ) ) {
880 $vagueTarget = $titleText;
881 } else {
882 $specificTarget = $titleText;
883 }
884 if ( Block::newFromTarget( $specificTarget, $vagueTarget ) instanceof Block ) {
885 return array(
886 'index' => 'noindex',
887 'follow' => 'nofollow'
888 );
889 }
890 }
891
892 if ( $this->mPage->getID() === 0 || $this->getOldID() ) {
893 # Non-articles (special pages etc), and old revisions
894 return array(
895 'index' => 'noindex',
896 'follow' => 'nofollow'
897 );
898 } elseif ( $this->getContext()->getOutput()->isPrintable() ) {
899 # Discourage indexing of printable versions, but encourage following
900 return array(
901 'index' => 'noindex',
902 'follow' => 'follow'
903 );
904 } elseif ( $this->getContext()->getRequest()->getInt( 'curid' ) ) {
905 # For ?curid=x urls, disallow indexing
906 return array(
907 'index' => 'noindex',
908 'follow' => 'follow'
909 );
910 }
911
912 # Otherwise, construct the policy based on the various config variables.
913 $policy = self::formatRobotPolicy( $wgDefaultRobotPolicy );
914
915 if ( isset( $wgNamespaceRobotPolicies[$ns] ) ) {
916 # Honour customised robot policies for this namespace
917 $policy = array_merge(
918 $policy,
919 self::formatRobotPolicy( $wgNamespaceRobotPolicies[$ns] )
920 );
921 }
922 if ( $this->getTitle()->canUseNoindex() && is_object( $pOutput ) && $pOutput->getIndexPolicy() ) {
923 # __INDEX__ and __NOINDEX__ magic words, if allowed. Incorporates
924 # a final sanity check that we have really got the parser output.
925 $policy = array_merge(
926 $policy,
927 array( 'index' => $pOutput->getIndexPolicy() )
928 );
929 }
930
931 if ( isset( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] ) ) {
932 # (bug 14900) site config can override user-defined __INDEX__ or __NOINDEX__
933 $policy = array_merge(
934 $policy,
935 self::formatRobotPolicy( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] )
936 );
937 }
938
939 return $policy;
940 }
941
942 /**
943 * Converts a String robot policy into an associative array, to allow
944 * merging of several policies using array_merge().
945 * @param array|string $policy Returns empty array on null/false/'', transparent
946 * to already-converted arrays, converts string.
947 * @return array 'index' => \<indexpolicy\>, 'follow' => \<followpolicy\>
948 */
949 public static function formatRobotPolicy( $policy ) {
950 if ( is_array( $policy ) ) {
951 return $policy;
952 } elseif ( !$policy ) {
953 return array();
954 }
955
956 $policy = explode( ',', $policy );
957 $policy = array_map( 'trim', $policy );
958
959 $arr = array();
960 foreach ( $policy as $var ) {
961 if ( in_array( $var, array( 'index', 'noindex' ) ) ) {
962 $arr['index'] = $var;
963 } elseif ( in_array( $var, array( 'follow', 'nofollow' ) ) ) {
964 $arr['follow'] = $var;
965 }
966 }
967
968 return $arr;
969 }
970
971 /**
972 * If this request is a redirect view, send "redirected from" subtitle to
973 * the output. Returns true if the header was needed, false if this is not
974 * a redirect view. Handles both local and remote redirects.
975 *
976 * @return bool
977 */
978 public function showRedirectedFromHeader() {
979 global $wgRedirectSources;
980 $outputPage = $this->getContext()->getOutput();
981
982 $request = $this->getContext()->getRequest();
983 $rdfrom = $request->getVal( 'rdfrom' );
984
985 // Construct a URL for the current page view, but with the target title
986 $query = $request->getValues();
987 unset( $query['rdfrom'] );
988 unset( $query['title'] );
989 $redirectTargetUrl = $this->getTitle()->getLinkURL( $query );
990
991 if ( isset( $this->mRedirectedFrom ) ) {
992 // This is an internally redirected page view.
993 // We'll need a backlink to the source page for navigation.
994 if ( wfRunHooks( 'ArticleViewRedirect', array( &$this ) ) ) {
995 $redir = Linker::linkKnown(
996 $this->mRedirectedFrom,
997 null,
998 array(),
999 array( 'redirect' => 'no' )
1000 );
1001
1002 $outputPage->addSubtitle( wfMessage( 'redirectedfrom' )->rawParams( $redir ) );
1003
1004 // Add the script to update the displayed URL and
1005 // set the fragment if one was specified in the redirect
1006 $outputPage->addJsConfigVars( array(
1007 'wgInternalRedirectTargetUrl' => $redirectTargetUrl,
1008 ) );
1009 $outputPage->addModules( 'mediawiki.action.view.redirect' );
1010
1011 // Add a <link rel="canonical"> tag
1012 $outputPage->setCanonicalUrl( $this->getTitle()->getLocalURL() );
1013
1014 // Tell the output object that the user arrived at this article through a redirect
1015 $outputPage->setRedirectedFrom( $this->mRedirectedFrom );
1016
1017 return true;
1018 }
1019 } elseif ( $rdfrom ) {
1020 // This is an externally redirected view, from some other wiki.
1021 // If it was reported from a trusted site, supply a backlink.
1022 if ( $wgRedirectSources && preg_match( $wgRedirectSources, $rdfrom ) ) {
1023 $redir = Linker::makeExternalLink( $rdfrom, $rdfrom );
1024 $outputPage->addSubtitle( wfMessage( 'redirectedfrom' )->rawParams( $redir ) );
1025
1026 // Add the script to update the displayed URL
1027 $outputPage->addJsConfigVars( array(
1028 'wgInternalRedirectTargetUrl' => $redirectTargetUrl,
1029 ) );
1030 $outputPage->addModules( 'mediawiki.action.view.redirect' );
1031
1032 return true;
1033 }
1034 }
1035
1036 return false;
1037 }
1038
1039 /**
1040 * Show a header specific to the namespace currently being viewed, like
1041 * [[MediaWiki:Talkpagetext]]. For Article::view().
1042 */
1043 public function showNamespaceHeader() {
1044 if ( $this->getTitle()->isTalkPage() ) {
1045 if ( !wfMessage( 'talkpageheader' )->isDisabled() ) {
1046 $this->getContext()->getOutput()->wrapWikiMsg(
1047 "<div class=\"mw-talkpageheader\">\n$1\n</div>",
1048 array( 'talkpageheader' )
1049 );
1050 }
1051 }
1052 }
1053
1054 /**
1055 * Show the footer section of an ordinary page view
1056 */
1057 public function showViewFooter() {
1058 # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
1059 if ( $this->getTitle()->getNamespace() == NS_USER_TALK
1060 && IP::isValid( $this->getTitle()->getText() )
1061 ) {
1062 $this->getContext()->getOutput()->addWikiMsg( 'anontalkpagetext' );
1063 }
1064
1065 // Show a footer allowing the user to patrol the shown revision or page if possible
1066 $patrolFooterShown = $this->showPatrolFooter();
1067
1068 wfRunHooks( 'ArticleViewFooter', array( $this, $patrolFooterShown ) );
1069 }
1070
1071 /**
1072 * If patrol is possible, output a patrol UI box. This is called from the
1073 * footer section of ordinary page views. If patrol is not possible or not
1074 * desired, does nothing.
1075 * Side effect: When the patrol link is build, this method will call
1076 * OutputPage::preventClickjacking() and load mediawiki.page.patrol.ajax.
1077 *
1078 * @return bool
1079 */
1080 public function showPatrolFooter() {
1081 global $wgUseNPPatrol, $wgUseRCPatrol, $wgEnableAPI, $wgEnableWriteAPI;
1082
1083 $outputPage = $this->getContext()->getOutput();
1084 $user = $this->getContext()->getUser();
1085 $cache = wfGetMainCache();
1086 $rc = false;
1087
1088 if ( !$this->getTitle()->quickUserCan( 'patrol', $user )
1089 || !( $wgUseRCPatrol || $wgUseNPPatrol )
1090 ) {
1091 // Patrolling is disabled or the user isn't allowed to
1092 return false;
1093 }
1094
1095 wfProfileIn( __METHOD__ );
1096
1097 // New page patrol: Get the timestamp of the oldest revison which
1098 // the revision table holds for the given page. Then we look
1099 // whether it's within the RC lifespan and if it is, we try
1100 // to get the recentchanges row belonging to that entry
1101 // (with rc_new = 1).
1102
1103 // Check for cached results
1104 if ( $cache->get( wfMemcKey( 'NotPatrollablePage', $this->getTitle()->getArticleID() ) ) ) {
1105 wfProfileOut( __METHOD__ );
1106 return false;
1107 }
1108
1109 if ( $this->mRevision
1110 && !RecentChange::isInRCLifespan( $this->mRevision->getTimestamp(), 21600 )
1111 ) {
1112 // The current revision is already older than what could be in the RC table
1113 // 6h tolerance because the RC might not be cleaned out regularly
1114 wfProfileOut( __METHOD__ );
1115 return false;
1116 }
1117
1118 $dbr = wfGetDB( DB_SLAVE );
1119 $oldestRevisionTimestamp = $dbr->selectField(
1120 'revision',
1121 'MIN( rev_timestamp )',
1122 array( 'rev_page' => $this->getTitle()->getArticleID() ),
1123 __METHOD__
1124 );
1125
1126 if ( $oldestRevisionTimestamp
1127 && RecentChange::isInRCLifespan( $oldestRevisionTimestamp, 21600 )
1128 ) {
1129 // 6h tolerance because the RC might not be cleaned out regularly
1130 $rc = RecentChange::newFromConds(
1131 array(
1132 'rc_new' => 1,
1133 'rc_timestamp' => $oldestRevisionTimestamp,
1134 'rc_namespace' => $this->getTitle()->getNamespace(),
1135 'rc_cur_id' => $this->getTitle()->getArticleID(),
1136 'rc_patrolled' => 0
1137 ),
1138 __METHOD__,
1139 array( 'USE INDEX' => 'new_name_timestamp' )
1140 );
1141 }
1142
1143 if ( !$rc ) {
1144 // No RC entry around
1145
1146 // Cache the information we gathered above in case we can't patrol
1147 // Don't cache in case we can patrol as this could change
1148 $cache->set( wfMemcKey( 'NotPatrollablePage', $this->getTitle()->getArticleID() ), '1' );
1149
1150 wfProfileOut( __METHOD__ );
1151 return false;
1152 }
1153
1154 if ( $rc->getPerformer()->getName() == $user->getName() ) {
1155 // Don't show a patrol link for own creations. If the user could
1156 // patrol them, they already would be patrolled
1157 wfProfileOut( __METHOD__ );
1158 return false;
1159 }
1160
1161 $rcid = $rc->getAttribute( 'rc_id' );
1162
1163 $token = $user->getEditToken( $rcid );
1164
1165 $outputPage->preventClickjacking();
1166 if ( $wgEnableAPI && $wgEnableWriteAPI && $user->isAllowed( 'writeapi' ) ) {
1167 $outputPage->addModules( 'mediawiki.page.patrol.ajax' );
1168 }
1169
1170 $link = Linker::linkKnown(
1171 $this->getTitle(),
1172 wfMessage( 'markaspatrolledtext' )->escaped(),
1173 array(),
1174 array(
1175 'action' => 'markpatrolled',
1176 'rcid' => $rcid,
1177 'token' => $token,
1178 )
1179 );
1180
1181 $outputPage->addHTML(
1182 "<div class='patrollink'>" .
1183 wfMessage( 'markaspatrolledlink' )->rawParams( $link )->escaped() .
1184 '</div>'
1185 );
1186
1187 wfProfileOut( __METHOD__ );
1188 return true;
1189 }
1190
1191 /**
1192 * Show the error text for a missing article. For articles in the MediaWiki
1193 * namespace, show the default message text. To be called from Article::view().
1194 */
1195 public function showMissingArticle() {
1196 global $wgSend404Code;
1197
1198 $outputPage = $this->getContext()->getOutput();
1199 // Whether the page is a root user page of an existing user (but not a subpage)
1200 $validUserPage = false;
1201
1202 $title = $this->getTitle();
1203
1204 # Show info in user (talk) namespace. Does the user exist? Is he blocked?
1205 if ( $title->getNamespace() == NS_USER
1206 || $title->getNamespace() == NS_USER_TALK
1207 ) {
1208 $parts = explode( '/', $title->getText() );
1209 $rootPart = $parts[0];
1210 $user = User::newFromName( $rootPart, false /* allow IP users*/ );
1211 $ip = User::isIP( $rootPart );
1212 $block = Block::newFromTarget( $user, $user );
1213
1214 if ( !( $user && $user->isLoggedIn() ) && !$ip ) { # User does not exist
1215 $outputPage->wrapWikiMsg( "<div class=\"mw-userpage-userdoesnotexist error\">\n\$1\n</div>",
1216 array( 'userpage-userdoesnotexist-view', wfEscapeWikiText( $rootPart ) ) );
1217 } elseif ( !is_null( $block ) && $block->getType() != Block::TYPE_AUTO ) { # Show log extract if the user is currently blocked
1218 LogEventsList::showLogExtract(
1219 $outputPage,
1220 'block',
1221 MWNamespace::getCanonicalName( NS_USER ) . ':' . $block->getTarget(),
1222 '',
1223 array(
1224 'lim' => 1,
1225 'showIfEmpty' => false,
1226 'msgKey' => array(
1227 'blocked-notice-logextract',
1228 $user->getName() # Support GENDER in notice
1229 )
1230 )
1231 );
1232 $validUserPage = !$title->isSubpage();
1233 } else {
1234 $validUserPage = !$title->isSubpage();
1235 }
1236 }
1237
1238 wfRunHooks( 'ShowMissingArticle', array( $this ) );
1239
1240 // Give extensions a chance to hide their (unrelated) log entries
1241 $logTypes = array( 'delete', 'move' );
1242 $conds = array( "log_action != 'revision'" );
1243 wfRunHooks( 'Article::MissingArticleConditions', array( &$conds, $logTypes ) );
1244
1245 # Show delete and move logs
1246 $member = $title->getNamespace() . ':' . $title->getDBkey();
1247 // @todo: move optimization to showLogExtract()?
1248 if ( BloomCache::get( 'main' )->check( wfWikiId(), 'TitleHasLogs', $member ) ) {
1249 LogEventsList::showLogExtract( $outputPage, $logTypes, $title, '',
1250 array( 'lim' => 10,
1251 'conds' => $conds,
1252 'showIfEmpty' => false,
1253 'msgKey' => array( 'moveddeleted-notice' ) )
1254 );
1255 }
1256
1257 if ( !$this->mPage->hasViewableContent() && $wgSend404Code && !$validUserPage ) {
1258 // If there's no backing content, send a 404 Not Found
1259 // for better machine handling of broken links.
1260 $this->getContext()->getRequest()->response()->header( "HTTP/1.1 404 Not Found" );
1261 }
1262
1263 // Also apply the robot policy for nonexisting pages (even if a 404 was used for sanity)
1264 $policy = $this->getRobotPolicy( 'view' );
1265 $outputPage->setIndexPolicy( $policy['index'] );
1266 $outputPage->setFollowPolicy( $policy['follow'] );
1267
1268 $hookResult = wfRunHooks( 'BeforeDisplayNoArticleText', array( $this ) );
1269
1270 if ( !$hookResult ) {
1271 return;
1272 }
1273
1274 # Show error message
1275 $oldid = $this->getOldID();
1276 if ( $oldid ) {
1277 $text = wfMessage( 'missing-revision', $oldid )->plain();
1278 } elseif ( $title->getNamespace() === NS_MEDIAWIKI ) {
1279 // Use the default message text
1280 $text = $title->getDefaultMessageText();
1281 } elseif ( $title->quickUserCan( 'create', $this->getContext()->getUser() )
1282 && $title->quickUserCan( 'edit', $this->getContext()->getUser() )
1283 ) {
1284 $message = $this->getContext()->getUser()->isLoggedIn() ? 'noarticletext' : 'noarticletextanon';
1285 $text = wfMessage( $message )->plain();
1286 } else {
1287 $text = wfMessage( 'noarticletext-nopermission' )->plain();
1288 }
1289 $text = "<div class='noarticletext'>\n$text\n</div>";
1290
1291 $outputPage->addWikiText( $text );
1292 }
1293
1294 /**
1295 * If the revision requested for view is deleted, check permissions.
1296 * Send either an error message or a warning header to the output.
1297 *
1298 * @return bool True if the view is allowed, false if not.
1299 */
1300 public function showDeletedRevisionHeader() {
1301 if ( !$this->mRevision->isDeleted( Revision::DELETED_TEXT ) ) {
1302 // Not deleted
1303 return true;
1304 }
1305
1306 $outputPage = $this->getContext()->getOutput();
1307 $user = $this->getContext()->getUser();
1308 // If the user is not allowed to see it...
1309 if ( !$this->mRevision->userCan( Revision::DELETED_TEXT, $user ) ) {
1310 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1311 'rev-deleted-text-permission' );
1312
1313 return false;
1314 // If the user needs to confirm that they want to see it...
1315 } elseif ( $this->getContext()->getRequest()->getInt( 'unhide' ) != 1 ) {
1316 # Give explanation and add a link to view the revision...
1317 $oldid = intval( $this->getOldID() );
1318 $link = $this->getTitle()->getFullURL( "oldid={$oldid}&unhide=1" );
1319 $msg = $this->mRevision->isDeleted( Revision::DELETED_RESTRICTED ) ?
1320 'rev-suppressed-text-unhide' : 'rev-deleted-text-unhide';
1321 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1322 array( $msg, $link ) );
1323
1324 return false;
1325 // We are allowed to see...
1326 } else {
1327 $msg = $this->mRevision->isDeleted( Revision::DELETED_RESTRICTED ) ?
1328 'rev-suppressed-text-view' : 'rev-deleted-text-view';
1329 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n", $msg );
1330
1331 return true;
1332 }
1333 }
1334
1335 /**
1336 * Generate the navigation links when browsing through an article revisions
1337 * It shows the information as:
1338 * Revision as of \<date\>; view current revision
1339 * \<- Previous version | Next Version -\>
1340 *
1341 * @param int $oldid Revision ID of this article revision
1342 */
1343 public function setOldSubtitle( $oldid = 0 ) {
1344 if ( !wfRunHooks( 'DisplayOldSubtitle', array( &$this, &$oldid ) ) ) {
1345 return;
1346 }
1347
1348 $unhide = $this->getContext()->getRequest()->getInt( 'unhide' ) == 1;
1349
1350 # Cascade unhide param in links for easy deletion browsing
1351 $extraParams = array();
1352 if ( $unhide ) {
1353 $extraParams['unhide'] = 1;
1354 }
1355
1356 if ( $this->mRevision && $this->mRevision->getId() === $oldid ) {
1357 $revision = $this->mRevision;
1358 } else {
1359 $revision = Revision::newFromId( $oldid );
1360 }
1361
1362 $timestamp = $revision->getTimestamp();
1363
1364 $current = ( $oldid == $this->mPage->getLatest() );
1365 $language = $this->getContext()->getLanguage();
1366 $user = $this->getContext()->getUser();
1367
1368 $td = $language->userTimeAndDate( $timestamp, $user );
1369 $tddate = $language->userDate( $timestamp, $user );
1370 $tdtime = $language->userTime( $timestamp, $user );
1371
1372 # Show user links if allowed to see them. If hidden, then show them only if requested...
1373 $userlinks = Linker::revUserTools( $revision, !$unhide );
1374
1375 $infomsg = $current && !wfMessage( 'revision-info-current' )->isDisabled()
1376 ? 'revision-info-current'
1377 : 'revision-info';
1378
1379 $outputPage = $this->getContext()->getOutput();
1380 $outputPage->addSubtitle( "<div id=\"mw-{$infomsg}\">" . wfMessage( $infomsg,
1381 $td )->rawParams( $userlinks )->params( $revision->getID(), $tddate,
1382 $tdtime, $revision->getUserText() )->rawParams( Linker::revComment( $revision, true, true ) )->parse() . "</div>" );
1383
1384 $lnk = $current
1385 ? wfMessage( 'currentrevisionlink' )->escaped()
1386 : Linker::linkKnown(
1387 $this->getTitle(),
1388 wfMessage( 'currentrevisionlink' )->escaped(),
1389 array(),
1390 $extraParams
1391 );
1392 $curdiff = $current
1393 ? wfMessage( 'diff' )->escaped()
1394 : Linker::linkKnown(
1395 $this->getTitle(),
1396 wfMessage( 'diff' )->escaped(),
1397 array(),
1398 array(
1399 'diff' => 'cur',
1400 'oldid' => $oldid
1401 ) + $extraParams
1402 );
1403 $prev = $this->getTitle()->getPreviousRevisionID( $oldid );
1404 $prevlink = $prev
1405 ? Linker::linkKnown(
1406 $this->getTitle(),
1407 wfMessage( 'previousrevision' )->escaped(),
1408 array(),
1409 array(
1410 'direction' => 'prev',
1411 'oldid' => $oldid
1412 ) + $extraParams
1413 )
1414 : wfMessage( 'previousrevision' )->escaped();
1415 $prevdiff = $prev
1416 ? Linker::linkKnown(
1417 $this->getTitle(),
1418 wfMessage( 'diff' )->escaped(),
1419 array(),
1420 array(
1421 'diff' => 'prev',
1422 'oldid' => $oldid
1423 ) + $extraParams
1424 )
1425 : wfMessage( 'diff' )->escaped();
1426 $nextlink = $current
1427 ? wfMessage( 'nextrevision' )->escaped()
1428 : Linker::linkKnown(
1429 $this->getTitle(),
1430 wfMessage( 'nextrevision' )->escaped(),
1431 array(),
1432 array(
1433 'direction' => 'next',
1434 'oldid' => $oldid
1435 ) + $extraParams
1436 );
1437 $nextdiff = $current
1438 ? wfMessage( 'diff' )->escaped()
1439 : Linker::linkKnown(
1440 $this->getTitle(),
1441 wfMessage( 'diff' )->escaped(),
1442 array(),
1443 array(
1444 'diff' => 'next',
1445 'oldid' => $oldid
1446 ) + $extraParams
1447 );
1448
1449 $cdel = Linker::getRevDeleteLink( $user, $revision, $this->getTitle() );
1450 if ( $cdel !== '' ) {
1451 $cdel .= ' ';
1452 }
1453
1454 $outputPage->addSubtitle( "<div id=\"mw-revision-nav\">" . $cdel .
1455 wfMessage( 'revision-nav' )->rawParams(
1456 $prevdiff, $prevlink, $lnk, $curdiff, $nextlink, $nextdiff
1457 )->escaped() . "</div>" );
1458 }
1459
1460 /**
1461 * Return the HTML for the top of a redirect page
1462 *
1463 * Chances are you should just be using the ParserOutput from
1464 * WikitextContent::getParserOutput instead of calling this for redirects.
1465 *
1466 * @param Title|array $target Destination(s) to redirect
1467 * @param bool $appendSubtitle [optional]
1468 * @param bool $forceKnown Should the image be shown as a bluelink regardless of existence?
1469 * @return string Containing HTML with redirect link
1470 */
1471 public function viewRedirect( $target, $appendSubtitle = true, $forceKnown = false ) {
1472 $lang = $this->getTitle()->getPageLanguage();
1473 $out = $this->getContext()->getOutput();
1474 if ( $appendSubtitle ) {
1475 $out->addSubtitle( wfMessage( 'redirectpagesub' )->parse() );
1476 }
1477 $out->addModuleStyles( 'mediawiki.action.view.redirectPage' );
1478 return static::getRedirectHeaderHtml( $lang, $target, $forceKnown );
1479 }
1480
1481 /**
1482 * Return the HTML for the top of a redirect page
1483 *
1484 * Chances are you should just be using the ParserOutput from
1485 * WikitextContent::getParserOutput instead of calling this for redirects.
1486 *
1487 * @since 1.23
1488 * @param Language $lang
1489 * @param Title|array $target Destination(s) to redirect
1490 * @param bool $forceKnown Should the image be shown as a bluelink regardless of existence?
1491 * @return string Containing HTML with redirect link
1492 */
1493 public static function getRedirectHeaderHtml( Language $lang, $target, $forceKnown = false ) {
1494 if ( !is_array( $target ) ) {
1495 $target = array( $target );
1496 }
1497
1498 $html = '<ul class="redirectText">';
1499 /** @var Title $title */
1500 foreach ( $target as $title ) {
1501 $html .= '<li>' . Linker::link(
1502 $title,
1503 htmlspecialchars( $title->getFullText() ),
1504 array(),
1505 // Automatically append redirect=no to each link, since most of them are
1506 // redirect pages themselves.
1507 array( 'redirect' => 'no' ),
1508 ( $forceKnown ? array( 'known', 'noclasses' ) : array() )
1509 ) . '</li>';
1510 }
1511
1512 $redirectToText = wfMessage( 'redirectto' )->inLanguage( $lang )->text();
1513
1514 return '<div class="redirectMsg">' .
1515 '<p>' . $redirectToText . '</p>' .
1516 $html .
1517 '</div>';
1518 }
1519
1520 /**
1521 * Handle action=render
1522 */
1523 public function render() {
1524 $this->getContext()->getRequest()->response()->header( 'X-Robots-Tag: noindex' );
1525 $this->getContext()->getOutput()->setArticleBodyOnly( true );
1526 $this->getContext()->getOutput()->enableSectionEditLinks( false );
1527 $this->view();
1528 }
1529
1530 /**
1531 * action=protect handler
1532 */
1533 public function protect() {
1534 $form = new ProtectionForm( $this );
1535 $form->execute();
1536 }
1537
1538 /**
1539 * action=unprotect handler (alias)
1540 */
1541 public function unprotect() {
1542 $this->protect();
1543 }
1544
1545 /**
1546 * UI entry point for page deletion
1547 */
1548 public function delete() {
1549 # This code desperately needs to be totally rewritten
1550
1551 $title = $this->getTitle();
1552 $user = $this->getContext()->getUser();
1553
1554 # Check permissions
1555 $permissionErrors = $title->getUserPermissionsErrors( 'delete', $user );
1556 if ( count( $permissionErrors ) ) {
1557 throw new PermissionsError( 'delete', $permissionErrors );
1558 }
1559
1560 # Read-only check...
1561 if ( wfReadOnly() ) {
1562 throw new ReadOnlyError;
1563 }
1564
1565 # Better double-check that it hasn't been deleted yet!
1566 $this->mPage->loadPageData( 'fromdbmaster' );
1567 if ( !$this->mPage->exists() ) {
1568 $deleteLogPage = new LogPage( 'delete' );
1569 $outputPage = $this->getContext()->getOutput();
1570 $outputPage->setPageTitle( wfMessage( 'cannotdelete-title', $title->getPrefixedText() ) );
1571 $outputPage->wrapWikiMsg( "<div class=\"error mw-error-cannotdelete\">\n$1\n</div>",
1572 array( 'cannotdelete', wfEscapeWikiText( $title->getPrefixedText() ) )
1573 );
1574 $outputPage->addHTML(
1575 Xml::element( 'h2', null, $deleteLogPage->getName()->text() )
1576 );
1577 LogEventsList::showLogExtract(
1578 $outputPage,
1579 'delete',
1580 $title
1581 );
1582
1583 return;
1584 }
1585
1586 $request = $this->getContext()->getRequest();
1587 $deleteReasonList = $request->getText( 'wpDeleteReasonList', 'other' );
1588 $deleteReason = $request->getText( 'wpReason' );
1589
1590 if ( $deleteReasonList == 'other' ) {
1591 $reason = $deleteReason;
1592 } elseif ( $deleteReason != '' ) {
1593 // Entry from drop down menu + additional comment
1594 $colonseparator = wfMessage( 'colon-separator' )->inContentLanguage()->text();
1595 $reason = $deleteReasonList . $colonseparator . $deleteReason;
1596 } else {
1597 $reason = $deleteReasonList;
1598 }
1599
1600 if ( $request->wasPosted() && $user->matchEditToken( $request->getVal( 'wpEditToken' ),
1601 array( 'delete', $this->getTitle()->getPrefixedText() ) )
1602 ) {
1603 # Flag to hide all contents of the archived revisions
1604 $suppress = $request->getVal( 'wpSuppress' ) && $user->isAllowed( 'suppressrevision' );
1605
1606 $this->doDelete( $reason, $suppress );
1607
1608 WatchAction::doWatchOrUnwatch( $request->getCheck( 'wpWatch' ), $title, $user );
1609
1610 return;
1611 }
1612
1613 // Generate deletion reason
1614 $hasHistory = false;
1615 if ( !$reason ) {
1616 try {
1617 $reason = $this->generateReason( $hasHistory );
1618 } catch ( MWException $e ) {
1619 # if a page is horribly broken, we still want to be able to
1620 # delete it. So be lenient about errors here.
1621 wfDebug( "Error while building auto delete summary: $e" );
1622 $reason = '';
1623 }
1624 }
1625
1626 // If the page has a history, insert a warning
1627 if ( $hasHistory ) {
1628 $title = $this->getTitle();
1629
1630 // The following can use the real revision count as this is only being shown for users that can delete
1631 // this page.
1632 // This, as a side-effect, also makes sure that the following query isn't being run for pages with a
1633 // larger history, unless the user has the 'bigdelete' right (and is about to delete this page).
1634 $dbr = wfGetDB( DB_SLAVE );
1635 $revisions = $edits = (int)$dbr->selectField(
1636 'revision',
1637 'COUNT(rev_page)',
1638 array( 'rev_page' => $title->getArticleID() ),
1639 __METHOD__
1640 );
1641
1642 // @todo FIXME: i18n issue/patchwork message
1643 $this->getContext()->getOutput()->addHTML( '<strong class="mw-delete-warning-revisions">' .
1644 wfMessage( 'historywarning' )->numParams( $revisions )->parse() .
1645 wfMessage( 'word-separator' )->plain() . Linker::linkKnown( $title,
1646 wfMessage( 'history' )->escaped(),
1647 array( 'rel' => 'archives' ),
1648 array( 'action' => 'history' ) ) .
1649 '</strong>'
1650 );
1651
1652 if ( $title->isBigDeletion() ) {
1653 global $wgDeleteRevisionsLimit;
1654 $this->getContext()->getOutput()->wrapWikiMsg( "<div class='error'>\n$1\n</div>\n",
1655 array(
1656 'delete-warning-toobig',
1657 $this->getContext()->getLanguage()->formatNum( $wgDeleteRevisionsLimit )
1658 )
1659 );
1660 }
1661 }
1662
1663 $this->confirmDelete( $reason );
1664 }
1665
1666 /**
1667 * Output deletion confirmation dialog
1668 * @todo FIXME: Move to another file?
1669 * @param string $reason Prefilled reason
1670 */
1671 public function confirmDelete( $reason ) {
1672 wfDebug( "Article::confirmDelete\n" );
1673
1674 $title = $this->getTitle();
1675 $outputPage = $this->getContext()->getOutput();
1676 $outputPage->setPageTitle( wfMessage( 'delete-confirm', $title->getPrefixedText() ) );
1677 $outputPage->addBacklinkSubtitle( $title );
1678 $outputPage->setRobotPolicy( 'noindex,nofollow' );
1679 $backlinkCache = $title->getBacklinkCache();
1680 if ( $backlinkCache->hasLinks( 'pagelinks' ) || $backlinkCache->hasLinks( 'templatelinks' ) ) {
1681 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1682 'deleting-backlinks-warning' );
1683 }
1684 $outputPage->addWikiMsg( 'confirmdeletetext' );
1685
1686 wfRunHooks( 'ArticleConfirmDelete', array( $this, $outputPage, &$reason ) );
1687
1688 $user = $this->getContext()->getUser();
1689
1690 if ( $user->isAllowed( 'suppressrevision' ) ) {
1691 $suppress = "<tr id=\"wpDeleteSuppressRow\">
1692 <td></td>
1693 <td class='mw-input'><strong>" .
1694 Xml::checkLabel( wfMessage( 'revdelete-suppress' )->text(),
1695 'wpSuppress', 'wpSuppress', false, array( 'tabindex' => '4' ) ) .
1696 "</strong></td>
1697 </tr>";
1698 } else {
1699 $suppress = '';
1700 }
1701 $checkWatch = $user->getBoolOption( 'watchdeletion' ) || $user->isWatched( $title );
1702
1703 $form = Xml::openElement( 'form', array( 'method' => 'post',
1704 'action' => $title->getLocalURL( 'action=delete' ), 'id' => 'deleteconfirm' ) ) .
1705 Xml::openElement( 'fieldset', array( 'id' => 'mw-delete-table' ) ) .
1706 Xml::tags( 'legend', null, wfMessage( 'delete-legend' )->escaped() ) .
1707 Xml::openElement( 'table', array( 'id' => 'mw-deleteconfirm-table' ) ) .
1708 "<tr id=\"wpDeleteReasonListRow\">
1709 <td class='mw-label'>" .
1710 Xml::label( wfMessage( 'deletecomment' )->text(), 'wpDeleteReasonList' ) .
1711 "</td>
1712 <td class='mw-input'>" .
1713 Xml::listDropDown(
1714 'wpDeleteReasonList',
1715 wfMessage( 'deletereason-dropdown' )->inContentLanguage()->text(),
1716 wfMessage( 'deletereasonotherlist' )->inContentLanguage()->text(),
1717 '',
1718 'wpReasonDropDown',
1719 1
1720 ) .
1721 "</td>
1722 </tr>
1723 <tr id=\"wpDeleteReasonRow\">
1724 <td class='mw-label'>" .
1725 Xml::label( wfMessage( 'deleteotherreason' )->text(), 'wpReason' ) .
1726 "</td>
1727 <td class='mw-input'>" .
1728 Html::input( 'wpReason', $reason, 'text', array(
1729 'size' => '60',
1730 'maxlength' => '255',
1731 'tabindex' => '2',
1732 'id' => 'wpReason',
1733 'autofocus'
1734 ) ) .
1735 "</td>
1736 </tr>";
1737
1738 # Disallow watching if user is not logged in
1739 if ( $user->isLoggedIn() ) {
1740 $form .= "
1741 <tr>
1742 <td></td>
1743 <td class='mw-input'>" .
1744 Xml::checkLabel( wfMessage( 'watchthis' )->text(),
1745 'wpWatch', 'wpWatch', $checkWatch, array( 'tabindex' => '3' ) ) .
1746 "</td>
1747 </tr>";
1748 }
1749
1750 $form .= "
1751 $suppress
1752 <tr>
1753 <td></td>
1754 <td class='mw-submit'>" .
1755 Xml::submitButton( wfMessage( 'deletepage' )->text(),
1756 array( 'name' => 'wpConfirmB', 'id' => 'wpConfirmB', 'tabindex' => '5' ) ) .
1757 "</td>
1758 </tr>" .
1759 Xml::closeElement( 'table' ) .
1760 Xml::closeElement( 'fieldset' ) .
1761 Html::hidden(
1762 'wpEditToken',
1763 $user->getEditToken( array( 'delete', $title->getPrefixedText() ) )
1764 ) .
1765 Xml::closeElement( 'form' );
1766
1767 if ( $user->isAllowed( 'editinterface' ) ) {
1768 $dropdownTitle = Title::makeTitle( NS_MEDIAWIKI, 'Deletereason-dropdown' );
1769 $link = Linker::link(
1770 $dropdownTitle,
1771 wfMessage( 'delete-edit-reasonlist' )->escaped(),
1772 array(),
1773 array( 'action' => 'edit' )
1774 );
1775 $form .= '<p class="mw-delete-editreasons">' . $link . '</p>';
1776 }
1777
1778 $outputPage->addHTML( $form );
1779
1780 $deleteLogPage = new LogPage( 'delete' );
1781 $outputPage->addHTML( Xml::element( 'h2', null, $deleteLogPage->getName()->text() ) );
1782 LogEventsList::showLogExtract( $outputPage, 'delete', $title );
1783 }
1784
1785 /**
1786 * Perform a deletion and output success or failure messages
1787 * @param string $reason
1788 * @param bool $suppress
1789 */
1790 public function doDelete( $reason, $suppress = false ) {
1791 $error = '';
1792 $outputPage = $this->getContext()->getOutput();
1793 $status = $this->mPage->doDeleteArticleReal( $reason, $suppress, 0, true, $error );
1794
1795 if ( $status->isGood() ) {
1796 $deleted = $this->getTitle()->getPrefixedText();
1797
1798 $outputPage->setPageTitle( wfMessage( 'actioncomplete' ) );
1799 $outputPage->setRobotPolicy( 'noindex,nofollow' );
1800
1801 $loglink = '[[Special:Log/delete|' . wfMessage( 'deletionlog' )->text() . ']]';
1802
1803 $outputPage->addWikiMsg( 'deletedtext', wfEscapeWikiText( $deleted ), $loglink );
1804 $outputPage->returnToMain( false );
1805 } else {
1806 $outputPage->setPageTitle(
1807 wfMessage( 'cannotdelete-title',
1808 $this->getTitle()->getPrefixedText() )
1809 );
1810
1811 if ( $error == '' ) {
1812 $outputPage->addWikiText(
1813 "<div class=\"error mw-error-cannotdelete\">\n" . $status->getWikiText() . "\n</div>"
1814 );
1815 $deleteLogPage = new LogPage( 'delete' );
1816 $outputPage->addHTML( Xml::element( 'h2', null, $deleteLogPage->getName()->text() ) );
1817
1818 LogEventsList::showLogExtract(
1819 $outputPage,
1820 'delete',
1821 $this->getTitle()
1822 );
1823 } else {
1824 $outputPage->addHTML( $error );
1825 }
1826 }
1827 }
1828
1829 /* Caching functions */
1830
1831 /**
1832 * checkLastModified returns true if it has taken care of all
1833 * output to the client that is necessary for this request.
1834 * (that is, it has sent a cached version of the page)
1835 *
1836 * @return bool True if cached version send, false otherwise
1837 */
1838 protected function tryFileCache() {
1839 static $called = false;
1840
1841 if ( $called ) {
1842 wfDebug( "Article::tryFileCache(): called twice!?\n" );
1843 return false;
1844 }
1845
1846 $called = true;
1847 if ( $this->isFileCacheable() ) {
1848 $cache = new HTMLFileCache( $this->getTitle(), 'view' );
1849 if ( $cache->isCacheGood( $this->mPage->getTouched() ) ) {
1850 wfDebug( "Article::tryFileCache(): about to load file\n" );
1851 $cache->loadFromFileCache( $this->getContext() );
1852 return true;
1853 } else {
1854 wfDebug( "Article::tryFileCache(): starting buffer\n" );
1855 ob_start( array( &$cache, 'saveToFileCache' ) );
1856 }
1857 } else {
1858 wfDebug( "Article::tryFileCache(): not cacheable\n" );
1859 }
1860
1861 return false;
1862 }
1863
1864 /**
1865 * Check if the page can be cached
1866 * @return bool
1867 */
1868 public function isFileCacheable() {
1869 $cacheable = false;
1870
1871 if ( HTMLFileCache::useFileCache( $this->getContext() ) ) {
1872 $cacheable = $this->mPage->getID()
1873 && !$this->mRedirectedFrom && !$this->getTitle()->isRedirect();
1874 // Extension may have reason to disable file caching on some pages.
1875 if ( $cacheable ) {
1876 $cacheable = wfRunHooks( 'IsFileCacheable', array( &$this ) );
1877 }
1878 }
1879
1880 return $cacheable;
1881 }
1882
1883 /**#@-*/
1884
1885 /**
1886 * Lightweight method to get the parser output for a page, checking the parser cache
1887 * and so on. Doesn't consider most of the stuff that WikiPage::view is forced to
1888 * consider, so it's not appropriate to use there.
1889 *
1890 * @since 1.16 (r52326) for LiquidThreads
1891 *
1892 * @param int|null $oldid Revision ID or null
1893 * @param User $user The relevant user
1894 * @return ParserOutput|bool ParserOutput or false if the given revision ID is not found
1895 */
1896 public function getParserOutput( $oldid = null, User $user = null ) {
1897 //XXX: bypasses mParserOptions and thus setParserOptions()
1898
1899 if ( $user === null ) {
1900 $parserOptions = $this->getParserOptions();
1901 } else {
1902 $parserOptions = $this->mPage->makeParserOptions( $user );
1903 }
1904
1905 return $this->mPage->getParserOutput( $parserOptions, $oldid );
1906 }
1907
1908 /**
1909 * Override the ParserOptions used to render the primary article wikitext.
1910 *
1911 * @param ParserOptions $options
1912 * @throws MWException If the parser options where already initialized.
1913 */
1914 public function setParserOptions( ParserOptions $options ) {
1915 if ( $this->mParserOptions ) {
1916 throw new MWException( "can't change parser options after they have already been set" );
1917 }
1918
1919 // clone, so if $options is modified later, it doesn't confuse the parser cache.
1920 $this->mParserOptions = clone $options;
1921 }
1922
1923 /**
1924 * Get parser options suitable for rendering the primary article wikitext
1925 * @return ParserOptions
1926 */
1927 public function getParserOptions() {
1928 if ( !$this->mParserOptions ) {
1929 $this->mParserOptions = $this->mPage->makeParserOptions( $this->getContext() );
1930 }
1931 // Clone to allow modifications of the return value without affecting cache
1932 return clone $this->mParserOptions;
1933 }
1934
1935 /**
1936 * Sets the context this Article is executed in
1937 *
1938 * @param IContextSource $context
1939 * @since 1.18
1940 */
1941 public function setContext( $context ) {
1942 $this->mContext = $context;
1943 }
1944
1945 /**
1946 * Gets the context this Article is executed in
1947 *
1948 * @return IContextSource
1949 * @since 1.18
1950 */
1951 public function getContext() {
1952 if ( $this->mContext instanceof IContextSource ) {
1953 return $this->mContext;
1954 } else {
1955 wfDebug( __METHOD__ . " called and \$mContext is null. " .
1956 "Return RequestContext::getMain(); for sanity\n" );
1957 return RequestContext::getMain();
1958 }
1959 }
1960
1961 /**
1962 * Use PHP's magic __get handler to handle accessing of
1963 * raw WikiPage fields for backwards compatibility.
1964 *
1965 * @param string $fname Field name
1966 * @return mixed
1967 */
1968 public function __get( $fname ) {
1969 if ( property_exists( $this->mPage, $fname ) ) {
1970 #wfWarn( "Access to raw $fname field " . __CLASS__ );
1971 return $this->mPage->$fname;
1972 }
1973 trigger_error( 'Inaccessible property via __get(): ' . $fname, E_USER_NOTICE );
1974 }
1975
1976 /**
1977 * Use PHP's magic __set handler to handle setting of
1978 * raw WikiPage fields for backwards compatibility.
1979 *
1980 * @param string $fname Field name
1981 * @param mixed $fvalue New value
1982 */
1983 public function __set( $fname, $fvalue ) {
1984 if ( property_exists( $this->mPage, $fname ) ) {
1985 #wfWarn( "Access to raw $fname field of " . __CLASS__ );
1986 $this->mPage->$fname = $fvalue;
1987 // Note: extensions may want to toss on new fields
1988 } elseif ( !in_array( $fname, array( 'mContext', 'mPage' ) ) ) {
1989 $this->mPage->$fname = $fvalue;
1990 } else {
1991 trigger_error( 'Inaccessible property via __set(): ' . $fname, E_USER_NOTICE );
1992 }
1993 }
1994
1995 /**
1996 * Use PHP's magic __call handler to transform instance calls to
1997 * WikiPage functions for backwards compatibility.
1998 *
1999 * @param string $fname Name of called method
2000 * @param array $args Arguments to the method
2001 * @return mixed
2002 */
2003 public function __call( $fname, $args ) {
2004 if ( is_callable( array( $this->mPage, $fname ) ) ) {
2005 #wfWarn( "Call to " . __CLASS__ . "::$fname; please use WikiPage instead" );
2006 return call_user_func_array( array( $this->mPage, $fname ), $args );
2007 }
2008 trigger_error( 'Inaccessible function via __call(): ' . $fname, E_USER_ERROR );
2009 }
2010
2011 // ****** B/C functions to work-around PHP silliness with __call and references ****** //
2012
2013 /**
2014 * @param array $limit
2015 * @param array $expiry
2016 * @param bool $cascade
2017 * @param string $reason
2018 * @param User $user
2019 * @return Status
2020 */
2021 public function doUpdateRestrictions( array $limit, array $expiry, &$cascade,
2022 $reason, User $user
2023 ) {
2024 return $this->mPage->doUpdateRestrictions( $limit, $expiry, $cascade, $reason, $user );
2025 }
2026
2027 /**
2028 * @param array $limit
2029 * @param string $reason
2030 * @param int $cascade
2031 * @param array $expiry
2032 * @return bool
2033 */
2034 public function updateRestrictions( $limit = array(), $reason = '',
2035 &$cascade = 0, $expiry = array()
2036 ) {
2037 return $this->mPage->doUpdateRestrictions(
2038 $limit,
2039 $expiry,
2040 $cascade,
2041 $reason,
2042 $this->getContext()->getUser()
2043 );
2044 }
2045
2046 /**
2047 * @param string $reason
2048 * @param bool $suppress
2049 * @param int $id
2050 * @param bool $commit
2051 * @param string $error
2052 * @return bool
2053 */
2054 public function doDeleteArticle( $reason, $suppress = false, $id = 0,
2055 $commit = true, &$error = ''
2056 ) {
2057 return $this->mPage->doDeleteArticle( $reason, $suppress, $id, $commit, $error );
2058 }
2059
2060 /**
2061 * @param string $fromP
2062 * @param string $summary
2063 * @param string $token
2064 * @param bool $bot
2065 * @param array $resultDetails
2066 * @param User|null $user
2067 * @return array
2068 */
2069 public function doRollback( $fromP, $summary, $token, $bot, &$resultDetails, User $user = null ) {
2070 $user = is_null( $user ) ? $this->getContext()->getUser() : $user;
2071 return $this->mPage->doRollback( $fromP, $summary, $token, $bot, $resultDetails, $user );
2072 }
2073
2074 /**
2075 * @param string $fromP
2076 * @param string $summary
2077 * @param bool $bot
2078 * @param array $resultDetails
2079 * @param User|null $guser
2080 * @return array
2081 */
2082 public function commitRollback( $fromP, $summary, $bot, &$resultDetails, User $guser = null ) {
2083 $guser = is_null( $guser ) ? $this->getContext()->getUser() : $guser;
2084 return $this->mPage->commitRollback( $fromP, $summary, $bot, $resultDetails, $guser );
2085 }
2086
2087 /**
2088 * @param bool $hasHistory
2089 * @return mixed
2090 */
2091 public function generateReason( &$hasHistory ) {
2092 $title = $this->mPage->getTitle();
2093 $handler = ContentHandler::getForTitle( $title );
2094 return $handler->getAutoDeleteReason( $title, $hasHistory );
2095 }
2096
2097 // ****** B/C functions for static methods ( __callStatic is PHP>=5.3 ) ****** //
2098
2099 /**
2100 * @return array
2101 *
2102 * @deprecated since 1.24, use WikiPage::selectFields() instead
2103 */
2104 public static function selectFields() {
2105 wfDeprecated( __METHOD__, '1.24' );
2106 return WikiPage::selectFields();
2107 }
2108
2109 /**
2110 * @param Title $title
2111 *
2112 * @deprecated since 1.24, use WikiPage::onArticleCreate() instead
2113 */
2114 public static function onArticleCreate( $title ) {
2115 wfDeprecated( __METHOD__, '1.24' );
2116 WikiPage::onArticleCreate( $title );
2117 }
2118
2119 /**
2120 * @param Title $title
2121 *
2122 * @deprecated since 1.24, use WikiPage::onArticleDelete() instead
2123 */
2124 public static function onArticleDelete( $title ) {
2125 wfDeprecated( __METHOD__, '1.24' );
2126 WikiPage::onArticleDelete( $title );
2127 }
2128
2129 /**
2130 * @param Title $title
2131 *
2132 * @deprecated since 1.24, use WikiPage::onArticleEdit() instead
2133 */
2134 public static function onArticleEdit( $title ) {
2135 wfDeprecated( __METHOD__, '1.24' );
2136 WikiPage::onArticleEdit( $title );
2137 }
2138
2139 /**
2140 * @param string $oldtext
2141 * @param string $newtext
2142 * @param int $flags
2143 * @return string
2144 * @deprecated since 1.21, use ContentHandler::getAutosummary() instead
2145 */
2146 public static function getAutosummary( $oldtext, $newtext, $flags ) {
2147 return WikiPage::getAutosummary( $oldtext, $newtext, $flags );
2148 }
2149 // ******
2150 }
Wiklou, le Wiki du Wiklou