dc4096c438ab27ee1c1bdf6caaff97e4655e33d9
[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 use MediaWiki\MediaWikiServices;
23
24 /**
25 * Class for viewing MediaWiki article and history.
26 *
27 * This maintains WikiPage functions for backwards compatibility.
28 *
29 * @todo Move and rewrite code to an Action class
30 *
31 * See design.txt for an overview.
32 * Note: edit user interface and cache support functions have been
33 * moved to separate EditPage and HTMLFileCache classes.
34 */
35 class Article implements Page {
36 /** @var IContextSource The context this Article is executed in */
37 protected $mContext;
38
39 /** @var WikiPage The WikiPage object of this instance */
40 protected $mPage;
41
42 /** @var ParserOptions ParserOptions object for $wgUser articles */
43 public $mParserOptions;
44
45 /**
46 * @var string Text of the revision we are working on
47 * @todo BC cruft
48 */
49 public $mContent;
50
51 /**
52 * @var Content Content of the revision we are working on
53 * @since 1.21
54 */
55 public $mContentObject;
56
57 /** @var bool Is the content ($mContent) already loaded? */
58 public $mContentLoaded = false;
59
60 /** @var int|null The oldid of the article that is to be shown, 0 for the current revision */
61 public $mOldId;
62
63 /** @var Title Title from which we were redirected here */
64 public $mRedirectedFrom = null;
65
66 /** @var string|bool URL to redirect to or false if none */
67 public $mRedirectUrl = false;
68
69 /** @var int Revision ID of revision we are working on */
70 public $mRevIdFetched = 0;
71
72 /** @var Revision Revision we are working on */
73 public $mRevision = null;
74
75 /** @var ParserOutput */
76 public $mParserOutput;
77
78 /**
79 * Constructor and clear the article
80 * @param Title $title Reference to a Title object.
81 * @param int $oldId Revision ID, null to fetch from request, zero for current
82 */
83 public function __construct( Title $title, $oldId = null ) {
84 $this->mOldId = $oldId;
85 $this->mPage = $this->newPage( $title );
86 }
87
88 /**
89 * @param Title $title
90 * @return WikiPage
91 */
92 protected function newPage( Title $title ) {
93 return new WikiPage( $title );
94 }
95
96 /**
97 * Constructor from a page id
98 * @param int $id Article ID to load
99 * @return Article|null
100 */
101 public static function newFromID( $id ) {
102 $t = Title::newFromID( $id );
103 return $t == null ? null : new static( $t );
104 }
105
106 /**
107 * Create an Article object of the appropriate class for the given page.
108 *
109 * @param Title $title
110 * @param IContextSource $context
111 * @return Article
112 */
113 public static function newFromTitle( $title, IContextSource $context ) {
114 if ( NS_MEDIA == $title->getNamespace() ) {
115 // FIXME: where should this go?
116 $title = Title::makeTitle( NS_FILE, $title->getDBkey() );
117 }
118
119 $page = null;
120 Hooks::run( 'ArticleFromTitle', [ &$title, &$page, $context ] );
121 if ( !$page ) {
122 switch ( $title->getNamespace() ) {
123 case NS_FILE:
124 $page = new ImagePage( $title );
125 break;
126 case NS_CATEGORY:
127 $page = new CategoryPage( $title );
128 break;
129 default:
130 $page = new Article( $title );
131 }
132 }
133 $page->setContext( $context );
134
135 return $page;
136 }
137
138 /**
139 * Create an Article object of the appropriate class for the given page.
140 *
141 * @param WikiPage $page
142 * @param IContextSource $context
143 * @return Article
144 */
145 public static function newFromWikiPage( WikiPage $page, IContextSource $context ) {
146 $article = self::newFromTitle( $page->getTitle(), $context );
147 $article->mPage = $page; // override to keep process cached vars
148 return $article;
149 }
150
151 /**
152 * Get the page this view was redirected from
153 * @return Title|null
154 * @since 1.28
155 */
156 public function getRedirectedFrom() {
157 return $this->mRedirectedFrom;
158 }
159
160 /**
161 * Tell the page view functions that this view was redirected
162 * from another page on the wiki.
163 * @param Title $from
164 */
165 public function setRedirectedFrom( Title $from ) {
166 $this->mRedirectedFrom = $from;
167 }
168
169 /**
170 * Get the title object of the article
171 *
172 * @return Title Title object of this page
173 */
174 public function getTitle() {
175 return $this->mPage->getTitle();
176 }
177
178 /**
179 * Get the WikiPage object of this instance
180 *
181 * @since 1.19
182 * @return WikiPage
183 */
184 public function getPage() {
185 return $this->mPage;
186 }
187
188 /**
189 * Clear the object
190 */
191 public function clear() {
192 $this->mContentLoaded = false;
193
194 $this->mRedirectedFrom = null; # Title object if set
195 $this->mRevIdFetched = 0;
196 $this->mRedirectUrl = false;
197
198 $this->mPage->clear();
199 }
200
201 /**
202 * Returns a Content object representing the pages effective display content,
203 * not necessarily the revision's content!
204 *
205 * Note that getContent does not follow redirects anymore.
206 * If you need to fetch redirectable content easily, try
207 * the shortcut in WikiPage::getRedirectTarget()
208 *
209 * This function has side effects! Do not use this function if you
210 * only want the real revision text if any.
211 *
212 * @return Content Return the content of this revision
213 *
214 * @since 1.21
215 */
216 protected function getContentObject() {
217 if ( $this->mPage->getId() === 0 ) {
218 # If this is a MediaWiki:x message, then load the messages
219 # and return the message value for x.
220 if ( $this->getTitle()->getNamespace() == NS_MEDIAWIKI ) {
221 $text = $this->getTitle()->getDefaultMessageText();
222 if ( $text === false ) {
223 $text = '';
224 }
225
226 $content = ContentHandler::makeContent( $text, $this->getTitle() );
227 } else {
228 $message = $this->getContext()->getUser()->isLoggedIn() ? 'noarticletext' : 'noarticletextanon';
229 $content = new MessageContent( $message, null, 'parsemag' );
230 }
231 } else {
232 $this->fetchContentObject();
233 $content = $this->mContentObject;
234 }
235
236 return $content;
237 }
238
239 /**
240 * @return int The oldid of the article that is to be shown, 0 for the current revision
241 */
242 public function getOldID() {
243 if ( is_null( $this->mOldId ) ) {
244 $this->mOldId = $this->getOldIDFromRequest();
245 }
246
247 return $this->mOldId;
248 }
249
250 /**
251 * Sets $this->mRedirectUrl to a correct URL if the query parameters are incorrect
252 *
253 * @return int The old id for the request
254 */
255 public function getOldIDFromRequest() {
256 $this->mRedirectUrl = false;
257
258 $request = $this->getContext()->getRequest();
259 $oldid = $request->getIntOrNull( 'oldid' );
260
261 if ( $oldid === null ) {
262 return 0;
263 }
264
265 if ( $oldid !== 0 ) {
266 # Load the given revision and check whether the page is another one.
267 # In that case, update this instance to reflect the change.
268 if ( $oldid === $this->mPage->getLatest() ) {
269 $this->mRevision = $this->mPage->getRevision();
270 } else {
271 $this->mRevision = Revision::newFromId( $oldid );
272 if ( $this->mRevision !== null ) {
273 // Revision title doesn't match the page title given?
274 if ( $this->mPage->getId() != $this->mRevision->getPage() ) {
275 $function = [ get_class( $this->mPage ), 'newFromID' ];
276 $this->mPage = call_user_func( $function, $this->mRevision->getPage() );
277 }
278 }
279 }
280 }
281
282 if ( $request->getVal( 'direction' ) == 'next' ) {
283 $nextid = $this->getTitle()->getNextRevisionID( $oldid );
284 if ( $nextid ) {
285 $oldid = $nextid;
286 $this->mRevision = null;
287 } else {
288 $this->mRedirectUrl = $this->getTitle()->getFullURL( 'redirect=no' );
289 }
290 } elseif ( $request->getVal( 'direction' ) == 'prev' ) {
291 $previd = $this->getTitle()->getPreviousRevisionID( $oldid );
292 if ( $previd ) {
293 $oldid = $previd;
294 $this->mRevision = null;
295 }
296 }
297
298 return $oldid;
299 }
300
301 /**
302 * Get text content object
303 * Does *NOT* follow redirects.
304 * @todo When is this null?
305 *
306 * @note Code that wants to retrieve page content from the database should
307 * use WikiPage::getContent().
308 *
309 * @return Content|null|bool
310 *
311 * @since 1.21
312 */
313 protected function fetchContentObject() {
314 if ( $this->mContentLoaded ) {
315 return $this->mContentObject;
316 }
317
318 $this->mContentLoaded = true;
319 $this->mContent = null;
320
321 $oldid = $this->getOldID();
322
323 # Pre-fill content with error message so that if something
324 # fails we'll have something telling us what we intended.
325 // XXX: this isn't page content but a UI message. horrible.
326 $this->mContentObject = new MessageContent( 'missing-revision', [ $oldid ] );
327
328 if ( $oldid ) {
329 # $this->mRevision might already be fetched by getOldIDFromRequest()
330 if ( !$this->mRevision ) {
331 $this->mRevision = Revision::newFromId( $oldid );
332 if ( !$this->mRevision ) {
333 wfDebug( __METHOD__ . " failed to retrieve specified revision, id $oldid\n" );
334 return false;
335 }
336 }
337 } else {
338 $oldid = $this->mPage->getLatest();
339 if ( !$oldid ) {
340 wfDebug( __METHOD__ . " failed to find page data for title " .
341 $this->getTitle()->getPrefixedText() . "\n" );
342 return false;
343 }
344
345 # Update error message with correct oldid
346 $this->mContentObject = new MessageContent( 'missing-revision', [ $oldid ] );
347
348 $this->mRevision = $this->mPage->getRevision();
349
350 if ( !$this->mRevision ) {
351 wfDebug( __METHOD__ . " failed to retrieve current page, rev_id $oldid\n" );
352 return false;
353 }
354 }
355
356 // @todo FIXME: Horrible, horrible! This content-loading interface just plain sucks.
357 // We should instead work with the Revision object when we need it...
358 // Loads if user is allowed
359 $content = $this->mRevision->getContent(
360 Revision::FOR_THIS_USER,
361 $this->getContext()->getUser()
362 );
363
364 if ( !$content ) {
365 wfDebug( __METHOD__ . " failed to retrieve content of revision " .
366 $this->mRevision->getId() . "\n" );
367 return false;
368 }
369
370 $this->mContentObject = $content;
371 $this->mRevIdFetched = $this->mRevision->getId();
372
373 // Avoid PHP 7.1 warning of passing $this by reference
374 $articlePage = $this;
375
376 Hooks::run(
377 'ArticleAfterFetchContentObject',
378 [ &$articlePage, &$this->mContentObject ]
379 );
380
381 return $this->mContentObject;
382 }
383
384 /**
385 * Returns true if the currently-referenced revision is the current edit
386 * to this page (and it exists).
387 * @return bool
388 */
389 public function isCurrent() {
390 # If no oldid, this is the current version.
391 if ( $this->getOldID() == 0 ) {
392 return true;
393 }
394
395 return $this->mPage->exists() && $this->mRevision && $this->mRevision->isCurrent();
396 }
397
398 /**
399 * Get the fetched Revision object depending on request parameters or null
400 * on failure.
401 *
402 * @since 1.19
403 * @return Revision|null
404 */
405 public function getRevisionFetched() {
406 $this->fetchContentObject();
407
408 return $this->mRevision;
409 }
410
411 /**
412 * Use this to fetch the rev ID used on page views
413 *
414 * @return int Revision ID of last article revision
415 */
416 public function getRevIdFetched() {
417 if ( $this->mRevIdFetched ) {
418 return $this->mRevIdFetched;
419 } else {
420 return $this->mPage->getLatest();
421 }
422 }
423
424 /**
425 * This is the default action of the index.php entry point: just view the
426 * page of the given title.
427 */
428 public function view() {
429 global $wgUseFileCache, $wgDebugToolbar;
430
431 # Get variables from query string
432 # As side effect this will load the revision and update the title
433 # in a revision ID is passed in the request, so this should remain
434 # the first call of this method even if $oldid is used way below.
435 $oldid = $this->getOldID();
436
437 $user = $this->getContext()->getUser();
438 # Another whitelist check in case getOldID() is altering the title
439 $permErrors = $this->getTitle()->getUserPermissionsErrors( 'read', $user );
440 if ( count( $permErrors ) ) {
441 wfDebug( __METHOD__ . ": denied on secondary read check\n" );
442 throw new PermissionsError( 'read', $permErrors );
443 }
444
445 $outputPage = $this->getContext()->getOutput();
446 # getOldID() may as well want us to redirect somewhere else
447 if ( $this->mRedirectUrl ) {
448 $outputPage->redirect( $this->mRedirectUrl );
449 wfDebug( __METHOD__ . ": redirecting due to oldid\n" );
450
451 return;
452 }
453
454 # If we got diff in the query, we want to see a diff page instead of the article.
455 if ( $this->getContext()->getRequest()->getCheck( 'diff' ) ) {
456 wfDebug( __METHOD__ . ": showing diff page\n" );
457 $this->showDiffPage();
458
459 return;
460 }
461
462 # Set page title (may be overridden by DISPLAYTITLE)
463 $outputPage->setPageTitle( $this->getTitle()->getPrefixedText() );
464
465 $outputPage->setArticleFlag( true );
466 # Allow frames by default
467 $outputPage->allowClickjacking();
468
469 $parserCache = ParserCache::singleton();
470
471 $parserOptions = $this->getParserOptions();
472 # Render printable version, use printable version cache
473 if ( $outputPage->isPrintable() ) {
474 $parserOptions->setIsPrintable( true );
475 $parserOptions->setEditSection( false );
476 } elseif ( !$this->isCurrent() || !$this->getTitle()->quickUserCan( 'edit', $user ) ) {
477 $parserOptions->setEditSection( false );
478 }
479
480 # Try client and file cache
481 if ( !$wgDebugToolbar && $oldid === 0 && $this->mPage->checkTouched() ) {
482 # Try to stream the output from file cache
483 if ( $wgUseFileCache && $this->tryFileCache() ) {
484 wfDebug( __METHOD__ . ": done file cache\n" );
485 # tell wgOut that output is taken care of
486 $outputPage->disable();
487 $this->mPage->doViewUpdates( $user, $oldid );
488
489 return;
490 }
491 }
492
493 # Should the parser cache be used?
494 $useParserCache = $this->mPage->shouldCheckParserCache( $parserOptions, $oldid );
495 wfDebug( 'Article::view using parser cache: ' . ( $useParserCache ? 'yes' : 'no' ) . "\n" );
496 if ( $user->getStubThreshold() ) {
497 MediaWikiServices::getInstance()->getStatsdDataFactory()->increment( 'pcache_miss_stub' );
498 }
499
500 $this->showRedirectedFromHeader();
501 $this->showNamespaceHeader();
502
503 # Iterate through the possible ways of constructing the output text.
504 # Keep going until $outputDone is set, or we run out of things to do.
505 $pass = 0;
506 $outputDone = false;
507 $this->mParserOutput = false;
508
509 while ( !$outputDone && ++$pass ) {
510 switch ( $pass ) {
511 case 1:
512 // Avoid PHP 7.1 warning of passing $this by reference
513 $articlePage = $this;
514 Hooks::run( 'ArticleViewHeader', [ &$articlePage, &$outputDone, &$useParserCache ] );
515 break;
516 case 2:
517 # Early abort if the page doesn't exist
518 if ( !$this->mPage->exists() ) {
519 wfDebug( __METHOD__ . ": showing missing article\n" );
520 $this->showMissingArticle();
521 $this->mPage->doViewUpdates( $user );
522 return;
523 }
524
525 # Try the parser cache
526 if ( $useParserCache ) {
527 $this->mParserOutput = $parserCache->get( $this->mPage, $parserOptions );
528
529 if ( $this->mParserOutput !== false ) {
530 if ( $oldid ) {
531 wfDebug( __METHOD__ . ": showing parser cache contents for current rev permalink\n" );
532 $this->setOldSubtitle( $oldid );
533 } else {
534 wfDebug( __METHOD__ . ": showing parser cache contents\n" );
535 }
536 $outputPage->addParserOutput( $this->mParserOutput );
537 # Ensure that UI elements requiring revision ID have
538 # the correct version information.
539 $outputPage->setRevisionId( $this->mPage->getLatest() );
540 # Preload timestamp to avoid a DB hit
541 $cachedTimestamp = $this->mParserOutput->getTimestamp();
542 if ( $cachedTimestamp !== null ) {
543 $outputPage->setRevisionTimestamp( $cachedTimestamp );
544 $this->mPage->setTimestamp( $cachedTimestamp );
545 }
546 $outputDone = true;
547 }
548 }
549 break;
550 case 3:
551 # This will set $this->mRevision if needed
552 $this->fetchContentObject();
553
554 # Are we looking at an old revision
555 if ( $oldid && $this->mRevision ) {
556 $this->setOldSubtitle( $oldid );
557
558 if ( !$this->showDeletedRevisionHeader() ) {
559 wfDebug( __METHOD__ . ": cannot view deleted revision\n" );
560 return;
561 }
562 }
563
564 # Ensure that UI elements requiring revision ID have
565 # the correct version information.
566 $outputPage->setRevisionId( $this->getRevIdFetched() );
567 # Preload timestamp to avoid a DB hit
568 $outputPage->setRevisionTimestamp( $this->mPage->getTimestamp() );
569
570 if ( !Hooks::run( 'ArticleContentViewCustom',
571 [ $this->fetchContentObject(), $this->getTitle(), $outputPage ] )
572 ) {
573 # Allow extensions do their own custom view for certain pages
574 $outputDone = true;
575 }
576 break;
577 case 4:
578 # Run the parse, protected by a pool counter
579 wfDebug( __METHOD__ . ": doing uncached parse\n" );
580
581 $content = $this->getContentObject();
582 $poolArticleView = new PoolWorkArticleView( $this->getPage(), $parserOptions,
583 $this->getRevIdFetched(), $useParserCache, $content );
584
585 if ( !$poolArticleView->execute() ) {
586 $error = $poolArticleView->getError();
587 if ( $error ) {
588 $outputPage->clearHTML(); // for release() errors
589 $outputPage->enableClientCache( false );
590 $outputPage->setRobotPolicy( 'noindex,nofollow' );
591
592 $errortext = $error->getWikiText( false, 'view-pool-error' );
593 $outputPage->addWikiText( '<div class="errorbox">' . $errortext . '</div>' );
594 }
595 # Connection or timeout error
596 return;
597 }
598
599 $this->mParserOutput = $poolArticleView->getParserOutput();
600 $outputPage->addParserOutput( $this->mParserOutput );
601 if ( $content->getRedirectTarget() ) {
602 $outputPage->addSubtitle( "<span id=\"redirectsub\">" .
603 $this->getContext()->msg( 'redirectpagesub' )->parse() . "</span>" );
604 }
605
606 # Don't cache a dirty ParserOutput object
607 if ( $poolArticleView->getIsDirty() ) {
608 $outputPage->setCdnMaxage( 0 );
609 $outputPage->addHTML( "<!-- parser cache is expired, " .
610 "sending anyway due to pool overload-->\n" );
611 }
612
613 $outputDone = true;
614 break;
615 # Should be unreachable, but just in case...
616 default:
617 break 2;
618 }
619 }
620
621 # Get the ParserOutput actually *displayed* here.
622 # Note that $this->mParserOutput is the *current*/oldid version output.
623 $pOutput = ( $outputDone instanceof ParserOutput )
624 ? $outputDone // object fetched by hook
625 : $this->mParserOutput;
626
627 # Adjust title for main page & pages with displaytitle
628 if ( $pOutput ) {
629 $this->adjustDisplayTitle( $pOutput );
630 }
631
632 # For the main page, overwrite the <title> element with the con-
633 # tents of 'pagetitle-view-mainpage' instead of the default (if
634 # that's not empty).
635 # This message always exists because it is in the i18n files
636 if ( $this->getTitle()->isMainPage() ) {
637 $msg = wfMessage( 'pagetitle-view-mainpage' )->inContentLanguage();
638 if ( !$msg->isDisabled() ) {
639 $outputPage->setHTMLTitle( $msg->title( $this->getTitle() )->text() );
640 }
641 }
642
643 # Use adaptive TTLs for CDN so delayed/failed purges are noticed less often.
644 # This could use getTouched(), but that could be scary for major template edits.
645 $outputPage->adaptCdnTTL( $this->mPage->getTimestamp(), IExpiringStore::TTL_DAY );
646
647 # Check for any __NOINDEX__ tags on the page using $pOutput
648 $policy = $this->getRobotPolicy( 'view', $pOutput );
649 $outputPage->setIndexPolicy( $policy['index'] );
650 $outputPage->setFollowPolicy( $policy['follow'] );
651
652 $this->showViewFooter();
653 $this->mPage->doViewUpdates( $user, $oldid );
654
655 # Load the postEdit module if the user just saved this revision
656 # See also EditPage::setPostEditCookie
657 $request = $this->getContext()->getRequest();
658 $cookieKey = EditPage::POST_EDIT_COOKIE_KEY_PREFIX . $this->getRevIdFetched();
659 $postEdit = $request->getCookie( $cookieKey );
660 if ( $postEdit ) {
661 # Clear the cookie. This also prevents caching of the response.
662 $request->response()->clearCookie( $cookieKey );
663 $outputPage->addJsConfigVars( 'wgPostEdit', $postEdit );
664 $outputPage->addModules( 'mediawiki.action.view.postEdit' );
665 }
666 }
667
668 /**
669 * Adjust title for pages with displaytitle, -{T|}- or language conversion
670 * @param ParserOutput $pOutput
671 */
672 public function adjustDisplayTitle( ParserOutput $pOutput ) {
673 # Adjust the title if it was set by displaytitle, -{T|}- or language conversion
674 $titleText = $pOutput->getTitleText();
675 if ( strval( $titleText ) !== '' ) {
676 $this->getContext()->getOutput()->setPageTitle( $titleText );
677 }
678 }
679
680 /**
681 * Show a diff page according to current request variables. For use within
682 * Article::view() only, other callers should use the DifferenceEngine class.
683 */
684 protected function showDiffPage() {
685 $request = $this->getContext()->getRequest();
686 $user = $this->getContext()->getUser();
687 $diff = $request->getVal( 'diff' );
688 $rcid = $request->getVal( 'rcid' );
689 $diffOnly = $request->getBool( 'diffonly', $user->getOption( 'diffonly' ) );
690 $purge = $request->getVal( 'action' ) == 'purge';
691 $unhide = $request->getInt( 'unhide' ) == 1;
692 $oldid = $this->getOldID();
693
694 $rev = $this->getRevisionFetched();
695
696 if ( !$rev ) {
697 $this->getContext()->getOutput()->setPageTitle( wfMessage( 'errorpagetitle' ) );
698 $msg = $this->getContext()->msg( 'difference-missing-revision' )
699 ->params( $oldid )
700 ->numParams( 1 )
701 ->parseAsBlock();
702 $this->getContext()->getOutput()->addHTML( $msg );
703 return;
704 }
705
706 $contentHandler = $rev->getContentHandler();
707 $de = $contentHandler->createDifferenceEngine(
708 $this->getContext(),
709 $oldid,
710 $diff,
711 $rcid,
712 $purge,
713 $unhide
714 );
715
716 // DifferenceEngine directly fetched the revision:
717 $this->mRevIdFetched = $de->mNewid;
718 $de->showDiffPage( $diffOnly );
719
720 // Run view updates for the newer revision being diffed (and shown
721 // below the diff if not $diffOnly).
722 list( $old, $new ) = $de->mapDiffPrevNext( $oldid, $diff );
723 // New can be false, convert it to 0 - this conveniently means the latest revision
724 $this->mPage->doViewUpdates( $user, (int)$new );
725 }
726
727 /**
728 * Get the robot policy to be used for the current view
729 * @param string $action The action= GET parameter
730 * @param ParserOutput|null $pOutput
731 * @return array The policy that should be set
732 * @todo actions other than 'view'
733 */
734 public function getRobotPolicy( $action, $pOutput = null ) {
735 global $wgArticleRobotPolicies, $wgNamespaceRobotPolicies, $wgDefaultRobotPolicy;
736
737 $ns = $this->getTitle()->getNamespace();
738
739 # Don't index user and user talk pages for blocked users (T13443)
740 if ( ( $ns == NS_USER || $ns == NS_USER_TALK ) && !$this->getTitle()->isSubpage() ) {
741 $specificTarget = null;
742 $vagueTarget = null;
743 $titleText = $this->getTitle()->getText();
744 if ( IP::isValid( $titleText ) ) {
745 $vagueTarget = $titleText;
746 } else {
747 $specificTarget = $titleText;
748 }
749 if ( Block::newFromTarget( $specificTarget, $vagueTarget ) instanceof Block ) {
750 return [
751 'index' => 'noindex',
752 'follow' => 'nofollow'
753 ];
754 }
755 }
756
757 if ( $this->mPage->getId() === 0 || $this->getOldID() ) {
758 # Non-articles (special pages etc), and old revisions
759 return [
760 'index' => 'noindex',
761 'follow' => 'nofollow'
762 ];
763 } elseif ( $this->getContext()->getOutput()->isPrintable() ) {
764 # Discourage indexing of printable versions, but encourage following
765 return [
766 'index' => 'noindex',
767 'follow' => 'follow'
768 ];
769 } elseif ( $this->getContext()->getRequest()->getInt( 'curid' ) ) {
770 # For ?curid=x urls, disallow indexing
771 return [
772 'index' => 'noindex',
773 'follow' => 'follow'
774 ];
775 }
776
777 # Otherwise, construct the policy based on the various config variables.
778 $policy = self::formatRobotPolicy( $wgDefaultRobotPolicy );
779
780 if ( isset( $wgNamespaceRobotPolicies[$ns] ) ) {
781 # Honour customised robot policies for this namespace
782 $policy = array_merge(
783 $policy,
784 self::formatRobotPolicy( $wgNamespaceRobotPolicies[$ns] )
785 );
786 }
787 if ( $this->getTitle()->canUseNoindex() && is_object( $pOutput ) && $pOutput->getIndexPolicy() ) {
788 # __INDEX__ and __NOINDEX__ magic words, if allowed. Incorporates
789 # a final sanity check that we have really got the parser output.
790 $policy = array_merge(
791 $policy,
792 [ 'index' => $pOutput->getIndexPolicy() ]
793 );
794 }
795
796 if ( isset( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] ) ) {
797 # (T16900) site config can override user-defined __INDEX__ or __NOINDEX__
798 $policy = array_merge(
799 $policy,
800 self::formatRobotPolicy( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] )
801 );
802 }
803
804 return $policy;
805 }
806
807 /**
808 * Converts a String robot policy into an associative array, to allow
809 * merging of several policies using array_merge().
810 * @param array|string $policy Returns empty array on null/false/'', transparent
811 * to already-converted arrays, converts string.
812 * @return array 'index' => \<indexpolicy\>, 'follow' => \<followpolicy\>
813 */
814 public static function formatRobotPolicy( $policy ) {
815 if ( is_array( $policy ) ) {
816 return $policy;
817 } elseif ( !$policy ) {
818 return [];
819 }
820
821 $policy = explode( ',', $policy );
822 $policy = array_map( 'trim', $policy );
823
824 $arr = [];
825 foreach ( $policy as $var ) {
826 if ( in_array( $var, [ 'index', 'noindex' ] ) ) {
827 $arr['index'] = $var;
828 } elseif ( in_array( $var, [ 'follow', 'nofollow' ] ) ) {
829 $arr['follow'] = $var;
830 }
831 }
832
833 return $arr;
834 }
835
836 /**
837 * If this request is a redirect view, send "redirected from" subtitle to
838 * the output. Returns true if the header was needed, false if this is not
839 * a redirect view. Handles both local and remote redirects.
840 *
841 * @return bool
842 */
843 public function showRedirectedFromHeader() {
844 global $wgRedirectSources;
845
846 $context = $this->getContext();
847 $outputPage = $context->getOutput();
848 $request = $context->getRequest();
849 $rdfrom = $request->getVal( 'rdfrom' );
850
851 // Construct a URL for the current page view, but with the target title
852 $query = $request->getValues();
853 unset( $query['rdfrom'] );
854 unset( $query['title'] );
855 if ( $this->getTitle()->isRedirect() ) {
856 // Prevent double redirects
857 $query['redirect'] = 'no';
858 }
859 $redirectTargetUrl = $this->getTitle()->getLinkURL( $query );
860
861 if ( isset( $this->mRedirectedFrom ) ) {
862 // Avoid PHP 7.1 warning of passing $this by reference
863 $articlePage = $this;
864
865 // This is an internally redirected page view.
866 // We'll need a backlink to the source page for navigation.
867 if ( Hooks::run( 'ArticleViewRedirect', [ &$articlePage ] ) ) {
868 $redir = Linker::linkKnown(
869 $this->mRedirectedFrom,
870 null,
871 [],
872 [ 'redirect' => 'no' ]
873 );
874
875 $outputPage->addSubtitle( "<span class=\"mw-redirectedfrom\">" .
876 $context->msg( 'redirectedfrom' )->rawParams( $redir )->parse()
877 . "</span>" );
878
879 // Add the script to update the displayed URL and
880 // set the fragment if one was specified in the redirect
881 $outputPage->addJsConfigVars( [
882 'wgInternalRedirectTargetUrl' => $redirectTargetUrl,
883 ] );
884 $outputPage->addModules( 'mediawiki.action.view.redirect' );
885
886 // Add a <link rel="canonical"> tag
887 $outputPage->setCanonicalUrl( $this->getTitle()->getCanonicalURL() );
888
889 // Tell the output object that the user arrived at this article through a redirect
890 $outputPage->setRedirectedFrom( $this->mRedirectedFrom );
891
892 return true;
893 }
894 } elseif ( $rdfrom ) {
895 // This is an externally redirected view, from some other wiki.
896 // If it was reported from a trusted site, supply a backlink.
897 if ( $wgRedirectSources && preg_match( $wgRedirectSources, $rdfrom ) ) {
898 $redir = Linker::makeExternalLink( $rdfrom, $rdfrom );
899 $outputPage->addSubtitle( "<span class=\"mw-redirectedfrom\">" .
900 $context->msg( 'redirectedfrom' )->rawParams( $redir )->parse()
901 . "</span>" );
902
903 // Add the script to update the displayed URL
904 $outputPage->addJsConfigVars( [
905 'wgInternalRedirectTargetUrl' => $redirectTargetUrl,
906 ] );
907 $outputPage->addModules( 'mediawiki.action.view.redirect' );
908
909 return true;
910 }
911 }
912
913 return false;
914 }
915
916 /**
917 * Show a header specific to the namespace currently being viewed, like
918 * [[MediaWiki:Talkpagetext]]. For Article::view().
919 */
920 public function showNamespaceHeader() {
921 if ( $this->getTitle()->isTalkPage() ) {
922 if ( !wfMessage( 'talkpageheader' )->isDisabled() ) {
923 $this->getContext()->getOutput()->wrapWikiMsg(
924 "<div class=\"mw-talkpageheader\">\n$1\n</div>",
925 [ 'talkpageheader' ]
926 );
927 }
928 }
929 }
930
931 /**
932 * Show the footer section of an ordinary page view
933 */
934 public function showViewFooter() {
935 # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
936 if ( $this->getTitle()->getNamespace() == NS_USER_TALK
937 && IP::isValid( $this->getTitle()->getText() )
938 ) {
939 $this->getContext()->getOutput()->addWikiMsg( 'anontalkpagetext' );
940 }
941
942 // Show a footer allowing the user to patrol the shown revision or page if possible
943 $patrolFooterShown = $this->showPatrolFooter();
944
945 Hooks::run( 'ArticleViewFooter', [ $this, $patrolFooterShown ] );
946 }
947
948 /**
949 * If patrol is possible, output a patrol UI box. This is called from the
950 * footer section of ordinary page views. If patrol is not possible or not
951 * desired, does nothing.
952 * Side effect: When the patrol link is build, this method will call
953 * OutputPage::preventClickjacking() and load mediawiki.page.patrol.ajax.
954 *
955 * @return bool
956 */
957 public function showPatrolFooter() {
958 global $wgUseNPPatrol, $wgUseRCPatrol, $wgUseFilePatrol, $wgEnableAPI, $wgEnableWriteAPI;
959
960 $outputPage = $this->getContext()->getOutput();
961 $user = $this->getContext()->getUser();
962 $title = $this->getTitle();
963 $rc = false;
964
965 if ( !$title->quickUserCan( 'patrol', $user )
966 || !( $wgUseRCPatrol || $wgUseNPPatrol
967 || ( $wgUseFilePatrol && $title->inNamespace( NS_FILE ) ) )
968 ) {
969 // Patrolling is disabled or the user isn't allowed to
970 return false;
971 }
972
973 if ( $this->mRevision
974 && !RecentChange::isInRCLifespan( $this->mRevision->getTimestamp(), 21600 )
975 ) {
976 // The current revision is already older than what could be in the RC table
977 // 6h tolerance because the RC might not be cleaned out regularly
978 return false;
979 }
980
981 // Check for cached results
982 $cache = MediaWikiServices::getInstance()->getMainWANObjectCache();
983 $key = $cache->makeKey( 'unpatrollable-page', $title->getArticleID() );
984 if ( $cache->get( $key ) ) {
985 return false;
986 }
987
988 $dbr = wfGetDB( DB_REPLICA );
989 $oldestRevisionTimestamp = $dbr->selectField(
990 'revision',
991 'MIN( rev_timestamp )',
992 [ 'rev_page' => $title->getArticleID() ],
993 __METHOD__
994 );
995
996 // New page patrol: Get the timestamp of the oldest revison which
997 // the revision table holds for the given page. Then we look
998 // whether it's within the RC lifespan and if it is, we try
999 // to get the recentchanges row belonging to that entry
1000 // (with rc_new = 1).
1001 $recentPageCreation = false;
1002 if ( $oldestRevisionTimestamp
1003 && RecentChange::isInRCLifespan( $oldestRevisionTimestamp, 21600 )
1004 ) {
1005 // 6h tolerance because the RC might not be cleaned out regularly
1006 $recentPageCreation = true;
1007 $rc = RecentChange::newFromConds(
1008 [
1009 'rc_new' => 1,
1010 'rc_timestamp' => $oldestRevisionTimestamp,
1011 'rc_namespace' => $title->getNamespace(),
1012 'rc_cur_id' => $title->getArticleID()
1013 ],
1014 __METHOD__
1015 );
1016 if ( $rc ) {
1017 // Use generic patrol message for new pages
1018 $markPatrolledMsg = wfMessage( 'markaspatrolledtext' );
1019 }
1020 }
1021
1022 // File patrol: Get the timestamp of the latest upload for this page,
1023 // check whether it is within the RC lifespan and if it is, we try
1024 // to get the recentchanges row belonging to that entry
1025 // (with rc_type = RC_LOG, rc_log_type = upload).
1026 $recentFileUpload = false;
1027 if ( ( !$rc || $rc->getAttribute( 'rc_patrolled' ) ) && $wgUseFilePatrol
1028 && $title->getNamespace() === NS_FILE ) {
1029 // Retrieve timestamp of most recent upload
1030 $newestUploadTimestamp = $dbr->selectField(
1031 'image',
1032 'MAX( img_timestamp )',
1033 [ 'img_name' => $title->getDBkey() ],
1034 __METHOD__
1035 );
1036 if ( $newestUploadTimestamp
1037 && RecentChange::isInRCLifespan( $newestUploadTimestamp, 21600 )
1038 ) {
1039 // 6h tolerance because the RC might not be cleaned out regularly
1040 $recentFileUpload = true;
1041 $rc = RecentChange::newFromConds(
1042 [
1043 'rc_type' => RC_LOG,
1044 'rc_log_type' => 'upload',
1045 'rc_timestamp' => $newestUploadTimestamp,
1046 'rc_namespace' => NS_FILE,
1047 'rc_cur_id' => $title->getArticleID()
1048 ],
1049 __METHOD__,
1050 [ 'USE INDEX' => 'rc_timestamp' ]
1051 );
1052 if ( $rc ) {
1053 // Use patrol message specific to files
1054 $markPatrolledMsg = wfMessage( 'markaspatrolledtext-file' );
1055 }
1056 }
1057 }
1058
1059 if ( !$recentPageCreation && !$recentFileUpload ) {
1060 // Page creation and latest upload (for files) is too old to be in RC
1061
1062 // We definitely can't patrol so cache the information
1063 // When a new file version is uploaded, the cache is cleared
1064 $cache->set( $key, '1' );
1065
1066 return false;
1067 }
1068
1069 if ( !$rc ) {
1070 // Don't cache: This can be hit if the page gets accessed very fast after
1071 // its creation / latest upload or in case we have high replica DB lag. In case
1072 // the revision is too old, we will already return above.
1073 return false;
1074 }
1075
1076 if ( $rc->getAttribute( 'rc_patrolled' ) ) {
1077 // Patrolled RC entry around
1078
1079 // Cache the information we gathered above in case we can't patrol
1080 // Don't cache in case we can patrol as this could change
1081 $cache->set( $key, '1' );
1082
1083 return false;
1084 }
1085
1086 if ( $rc->getPerformer()->equals( $user ) ) {
1087 // Don't show a patrol link for own creations/uploads. If the user could
1088 // patrol them, they already would be patrolled
1089 return false;
1090 }
1091
1092 $outputPage->preventClickjacking();
1093 if ( $wgEnableAPI && $wgEnableWriteAPI && $user->isAllowed( 'writeapi' ) ) {
1094 $outputPage->addModules( 'mediawiki.page.patrol.ajax' );
1095 }
1096
1097 $link = Linker::linkKnown(
1098 $title,
1099 $markPatrolledMsg->escaped(),
1100 [],
1101 [
1102 'action' => 'markpatrolled',
1103 'rcid' => $rc->getAttribute( 'rc_id' ),
1104 ]
1105 );
1106
1107 $outputPage->addHTML(
1108 "<div class='patrollink' data-mw='interface'>" .
1109 wfMessage( 'markaspatrolledlink' )->rawParams( $link )->escaped() .
1110 '</div>'
1111 );
1112
1113 return true;
1114 }
1115
1116 /**
1117 * Purge the cache used to check if it is worth showing the patrol footer
1118 * For example, it is done during re-uploads when file patrol is used.
1119 * @param int $articleID ID of the article to purge
1120 * @since 1.27
1121 */
1122 public static function purgePatrolFooterCache( $articleID ) {
1123 $cache = MediaWikiServices::getInstance()->getMainWANObjectCache();
1124 $cache->delete( $cache->makeKey( 'unpatrollable-page', $articleID ) );
1125 }
1126
1127 /**
1128 * Show the error text for a missing article. For articles in the MediaWiki
1129 * namespace, show the default message text. To be called from Article::view().
1130 */
1131 public function showMissingArticle() {
1132 global $wgSend404Code;
1133
1134 $outputPage = $this->getContext()->getOutput();
1135 // Whether the page is a root user page of an existing user (but not a subpage)
1136 $validUserPage = false;
1137
1138 $title = $this->getTitle();
1139
1140 # Show info in user (talk) namespace. Does the user exist? Is he blocked?
1141 if ( $title->getNamespace() == NS_USER
1142 || $title->getNamespace() == NS_USER_TALK
1143 ) {
1144 $rootPart = explode( '/', $title->getText() )[0];
1145 $user = User::newFromName( $rootPart, false /* allow IP users */ );
1146 $ip = User::isIP( $rootPart );
1147 $block = Block::newFromTarget( $user, $user );
1148
1149 if ( !( $user && $user->isLoggedIn() ) && !$ip ) { # User does not exist
1150 $outputPage->wrapWikiMsg( "<div class=\"mw-userpage-userdoesnotexist error\">\n\$1\n</div>",
1151 [ 'userpage-userdoesnotexist-view', wfEscapeWikiText( $rootPart ) ] );
1152 } elseif ( !is_null( $block ) && $block->getType() != Block::TYPE_AUTO ) {
1153 # Show log extract if the user is currently blocked
1154 LogEventsList::showLogExtract(
1155 $outputPage,
1156 'block',
1157 MWNamespace::getCanonicalName( NS_USER ) . ':' . $block->getTarget(),
1158 '',
1159 [
1160 'lim' => 1,
1161 'showIfEmpty' => false,
1162 'msgKey' => [
1163 'blocked-notice-logextract',
1164 $user->getName() # Support GENDER in notice
1165 ]
1166 ]
1167 );
1168 $validUserPage = !$title->isSubpage();
1169 } else {
1170 $validUserPage = !$title->isSubpage();
1171 }
1172 }
1173
1174 Hooks::run( 'ShowMissingArticle', [ $this ] );
1175
1176 # Show delete and move logs if there were any such events.
1177 # The logging query can DOS the site when bots/crawlers cause 404 floods,
1178 # so be careful showing this. 404 pages must be cheap as they are hard to cache.
1179 $cache = MediaWikiServices::getInstance()->getMainObjectStash();
1180 $key = $cache->makeKey( 'page-recent-delete', md5( $title->getPrefixedText() ) );
1181 $loggedIn = $this->getContext()->getUser()->isLoggedIn();
1182 if ( $loggedIn || $cache->get( $key ) ) {
1183 $logTypes = [ 'delete', 'move' ];
1184
1185 $dbr = wfGetDB( DB_REPLICA );
1186
1187 $conds = [ 'log_action != ' . $dbr->addQuotes( 'revision' ) ];
1188 // Give extensions a chance to hide their (unrelated) log entries
1189 Hooks::run( 'Article::MissingArticleConditions', [ &$conds, $logTypes ] );
1190 LogEventsList::showLogExtract(
1191 $outputPage,
1192 $logTypes,
1193 $title,
1194 '',
1195 [
1196 'lim' => 10,
1197 'conds' => $conds,
1198 'showIfEmpty' => false,
1199 'msgKey' => [ $loggedIn
1200 ? 'moveddeleted-notice'
1201 : 'moveddeleted-notice-recent'
1202 ]
1203 ]
1204 );
1205 }
1206
1207 if ( !$this->mPage->hasViewableContent() && $wgSend404Code && !$validUserPage ) {
1208 // If there's no backing content, send a 404 Not Found
1209 // for better machine handling of broken links.
1210 $this->getContext()->getRequest()->response()->statusHeader( 404 );
1211 }
1212
1213 // Also apply the robot policy for nonexisting pages (even if a 404 was used for sanity)
1214 $policy = $this->getRobotPolicy( 'view' );
1215 $outputPage->setIndexPolicy( $policy['index'] );
1216 $outputPage->setFollowPolicy( $policy['follow'] );
1217
1218 $hookResult = Hooks::run( 'BeforeDisplayNoArticleText', [ $this ] );
1219
1220 if ( !$hookResult ) {
1221 return;
1222 }
1223
1224 # Show error message
1225 $oldid = $this->getOldID();
1226 if ( !$oldid && $title->getNamespace() === NS_MEDIAWIKI && $title->hasSourceText() ) {
1227 $outputPage->addParserOutput( $this->getContentObject()->getParserOutput( $title ) );
1228 } else {
1229 if ( $oldid ) {
1230 $text = wfMessage( 'missing-revision', $oldid )->plain();
1231 } elseif ( $title->quickUserCan( 'create', $this->getContext()->getUser() )
1232 && $title->quickUserCan( 'edit', $this->getContext()->getUser() )
1233 ) {
1234 $message = $this->getContext()->getUser()->isLoggedIn() ? 'noarticletext' : 'noarticletextanon';
1235 $text = wfMessage( $message )->plain();
1236 } else {
1237 $text = wfMessage( 'noarticletext-nopermission' )->plain();
1238 }
1239
1240 $dir = $this->getContext()->getLanguage()->getDir();
1241 $lang = $this->getContext()->getLanguage()->getCode();
1242 $outputPage->addWikiText( Xml::openElement( 'div', [
1243 'class' => "noarticletext mw-content-$dir",
1244 'dir' => $dir,
1245 'lang' => $lang,
1246 ] ) . "\n$text\n</div>" );
1247 }
1248 }
1249
1250 /**
1251 * If the revision requested for view is deleted, check permissions.
1252 * Send either an error message or a warning header to the output.
1253 *
1254 * @return bool True if the view is allowed, false if not.
1255 */
1256 public function showDeletedRevisionHeader() {
1257 if ( !$this->mRevision->isDeleted( Revision::DELETED_TEXT ) ) {
1258 // Not deleted
1259 return true;
1260 }
1261
1262 $outputPage = $this->getContext()->getOutput();
1263 $user = $this->getContext()->getUser();
1264 // If the user is not allowed to see it...
1265 if ( !$this->mRevision->userCan( Revision::DELETED_TEXT, $user ) ) {
1266 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1267 'rev-deleted-text-permission' );
1268
1269 return false;
1270 // If the user needs to confirm that they want to see it...
1271 } elseif ( $this->getContext()->getRequest()->getInt( 'unhide' ) != 1 ) {
1272 # Give explanation and add a link to view the revision...
1273 $oldid = intval( $this->getOldID() );
1274 $link = $this->getTitle()->getFullURL( "oldid={$oldid}&unhide=1" );
1275 $msg = $this->mRevision->isDeleted( Revision::DELETED_RESTRICTED ) ?
1276 'rev-suppressed-text-unhide' : 'rev-deleted-text-unhide';
1277 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1278 [ $msg, $link ] );
1279
1280 return false;
1281 // We are allowed to see...
1282 } else {
1283 $msg = $this->mRevision->isDeleted( Revision::DELETED_RESTRICTED ) ?
1284 'rev-suppressed-text-view' : 'rev-deleted-text-view';
1285 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n", $msg );
1286
1287 return true;
1288 }
1289 }
1290
1291 /**
1292 * Generate the navigation links when browsing through an article revisions
1293 * It shows the information as:
1294 * Revision as of \<date\>; view current revision
1295 * \<- Previous version | Next Version -\>
1296 *
1297 * @param int $oldid Revision ID of this article revision
1298 */
1299 public function setOldSubtitle( $oldid = 0 ) {
1300 // Avoid PHP 7.1 warning of passing $this by reference
1301 $articlePage = $this;
1302
1303 if ( !Hooks::run( 'DisplayOldSubtitle', [ &$articlePage, &$oldid ] ) ) {
1304 return;
1305 }
1306
1307 $context = $this->getContext();
1308 $unhide = $context->getRequest()->getInt( 'unhide' ) == 1;
1309
1310 # Cascade unhide param in links for easy deletion browsing
1311 $extraParams = [];
1312 if ( $unhide ) {
1313 $extraParams['unhide'] = 1;
1314 }
1315
1316 if ( $this->mRevision && $this->mRevision->getId() === $oldid ) {
1317 $revision = $this->mRevision;
1318 } else {
1319 $revision = Revision::newFromId( $oldid );
1320 }
1321
1322 $timestamp = $revision->getTimestamp();
1323
1324 $current = ( $oldid == $this->mPage->getLatest() );
1325 $language = $context->getLanguage();
1326 $user = $context->getUser();
1327
1328 $td = $language->userTimeAndDate( $timestamp, $user );
1329 $tddate = $language->userDate( $timestamp, $user );
1330 $tdtime = $language->userTime( $timestamp, $user );
1331
1332 # Show user links if allowed to see them. If hidden, then show them only if requested...
1333 $userlinks = Linker::revUserTools( $revision, !$unhide );
1334
1335 $infomsg = $current && !$context->msg( 'revision-info-current' )->isDisabled()
1336 ? 'revision-info-current'
1337 : 'revision-info';
1338
1339 $outputPage = $context->getOutput();
1340 $revisionInfo = "<div id=\"mw-{$infomsg}\">" .
1341 $context->msg( $infomsg, $td )
1342 ->rawParams( $userlinks )
1343 ->params( $revision->getId(), $tddate, $tdtime, $revision->getUserText() )
1344 ->rawParams( Linker::revComment( $revision, true, true ) )
1345 ->parse() .
1346 "</div>";
1347
1348 $lnk = $current
1349 ? $context->msg( 'currentrevisionlink' )->escaped()
1350 : Linker::linkKnown(
1351 $this->getTitle(),
1352 $context->msg( 'currentrevisionlink' )->escaped(),
1353 [],
1354 $extraParams
1355 );
1356 $curdiff = $current
1357 ? $context->msg( 'diff' )->escaped()
1358 : Linker::linkKnown(
1359 $this->getTitle(),
1360 $context->msg( 'diff' )->escaped(),
1361 [],
1362 [
1363 'diff' => 'cur',
1364 'oldid' => $oldid
1365 ] + $extraParams
1366 );
1367 $prev = $this->getTitle()->getPreviousRevisionID( $oldid );
1368 $prevlink = $prev
1369 ? Linker::linkKnown(
1370 $this->getTitle(),
1371 $context->msg( 'previousrevision' )->escaped(),
1372 [],
1373 [
1374 'direction' => 'prev',
1375 'oldid' => $oldid
1376 ] + $extraParams
1377 )
1378 : $context->msg( 'previousrevision' )->escaped();
1379 $prevdiff = $prev
1380 ? Linker::linkKnown(
1381 $this->getTitle(),
1382 $context->msg( 'diff' )->escaped(),
1383 [],
1384 [
1385 'diff' => 'prev',
1386 'oldid' => $oldid
1387 ] + $extraParams
1388 )
1389 : $context->msg( 'diff' )->escaped();
1390 $nextlink = $current
1391 ? $context->msg( 'nextrevision' )->escaped()
1392 : Linker::linkKnown(
1393 $this->getTitle(),
1394 $context->msg( 'nextrevision' )->escaped(),
1395 [],
1396 [
1397 'direction' => 'next',
1398 'oldid' => $oldid
1399 ] + $extraParams
1400 );
1401 $nextdiff = $current
1402 ? $context->msg( 'diff' )->escaped()
1403 : Linker::linkKnown(
1404 $this->getTitle(),
1405 $context->msg( 'diff' )->escaped(),
1406 [],
1407 [
1408 'diff' => 'next',
1409 'oldid' => $oldid
1410 ] + $extraParams
1411 );
1412
1413 $cdel = Linker::getRevDeleteLink( $user, $revision, $this->getTitle() );
1414 if ( $cdel !== '' ) {
1415 $cdel .= ' ';
1416 }
1417
1418 // the outer div is need for styling the revision info and nav in MobileFrontend
1419 $outputPage->addSubtitle( "<div class=\"mw-revision\">" . $revisionInfo .
1420 "<div id=\"mw-revision-nav\">" . $cdel .
1421 $context->msg( 'revision-nav' )->rawParams(
1422 $prevdiff, $prevlink, $lnk, $curdiff, $nextlink, $nextdiff
1423 )->escaped() . "</div></div>" );
1424 }
1425
1426 /**
1427 * Return the HTML for the top of a redirect page
1428 *
1429 * Chances are you should just be using the ParserOutput from
1430 * WikitextContent::getParserOutput instead of calling this for redirects.
1431 *
1432 * @param Title|array $target Destination(s) to redirect
1433 * @param bool $appendSubtitle [optional]
1434 * @param bool $forceKnown Should the image be shown as a bluelink regardless of existence?
1435 * @return string Containing HTML with redirect link
1436 *
1437 * @deprecated since 1.30
1438 */
1439 public function viewRedirect( $target, $appendSubtitle = true, $forceKnown = false ) {
1440 $lang = $this->getTitle()->getPageLanguage();
1441 $out = $this->getContext()->getOutput();
1442 if ( $appendSubtitle ) {
1443 $out->addSubtitle( wfMessage( 'redirectpagesub' ) );
1444 }
1445 $out->addModuleStyles( 'mediawiki.action.view.redirectPage' );
1446 return static::getRedirectHeaderHtml( $lang, $target, $forceKnown );
1447 }
1448
1449 /**
1450 * Return the HTML for the top of a redirect page
1451 *
1452 * Chances are you should just be using the ParserOutput from
1453 * WikitextContent::getParserOutput instead of calling this for redirects.
1454 *
1455 * @since 1.23
1456 * @param Language $lang
1457 * @param Title|array $target Destination(s) to redirect
1458 * @param bool $forceKnown Should the image be shown as a bluelink regardless of existence?
1459 * @return string Containing HTML with redirect link
1460 */
1461 public static function getRedirectHeaderHtml( Language $lang, $target, $forceKnown = false ) {
1462 if ( !is_array( $target ) ) {
1463 $target = [ $target ];
1464 }
1465
1466 $html = '<ul class="redirectText">';
1467 /** @var Title $title */
1468 foreach ( $target as $title ) {
1469 $html .= '<li>' . Linker::link(
1470 $title,
1471 htmlspecialchars( $title->getFullText() ),
1472 [],
1473 // Make sure wiki page redirects are not followed
1474 $title->isRedirect() ? [ 'redirect' => 'no' ] : [],
1475 ( $forceKnown ? [ 'known', 'noclasses' ] : [] )
1476 ) . '</li>';
1477 }
1478 $html .= '</ul>';
1479
1480 $redirectToText = wfMessage( 'redirectto' )->inLanguage( $lang )->escaped();
1481
1482 return '<div class="redirectMsg">' .
1483 '<p>' . $redirectToText . '</p>' .
1484 $html .
1485 '</div>';
1486 }
1487
1488 /**
1489 * Adds help link with an icon via page indicators.
1490 * Link target can be overridden by a local message containing a wikilink:
1491 * the message key is: 'namespace-' + namespace number + '-helppage'.
1492 * @param string $to Target MediaWiki.org page title or encoded URL.
1493 * @param bool $overrideBaseUrl Whether $url is a full URL, to avoid MW.o.
1494 * @since 1.25
1495 */
1496 public function addHelpLink( $to, $overrideBaseUrl = false ) {
1497 $msg = wfMessage(
1498 'namespace-' . $this->getTitle()->getNamespace() . '-helppage'
1499 );
1500
1501 $out = $this->getContext()->getOutput();
1502 if ( !$msg->isDisabled() ) {
1503 $helpUrl = Skin::makeUrl( $msg->plain() );
1504 $out->addHelpLink( $helpUrl, true );
1505 } else {
1506 $out->addHelpLink( $to, $overrideBaseUrl );
1507 }
1508 }
1509
1510 /**
1511 * Handle action=render
1512 */
1513 public function render() {
1514 $this->getContext()->getRequest()->response()->header( 'X-Robots-Tag: noindex' );
1515 $this->getContext()->getOutput()->setArticleBodyOnly( true );
1516 $this->getContext()->getOutput()->enableSectionEditLinks( false );
1517 $this->view();
1518 }
1519
1520 /**
1521 * action=protect handler
1522 */
1523 public function protect() {
1524 $form = new ProtectionForm( $this );
1525 $form->execute();
1526 }
1527
1528 /**
1529 * action=unprotect handler (alias)
1530 */
1531 public function unprotect() {
1532 $this->protect();
1533 }
1534
1535 /**
1536 * UI entry point for page deletion
1537 */
1538 public function delete() {
1539 # This code desperately needs to be totally rewritten
1540
1541 $title = $this->getTitle();
1542 $context = $this->getContext();
1543 $user = $context->getUser();
1544 $request = $context->getRequest();
1545
1546 # Check permissions
1547 $permissionErrors = $title->getUserPermissionsErrors( 'delete', $user );
1548 if ( count( $permissionErrors ) ) {
1549 throw new PermissionsError( 'delete', $permissionErrors );
1550 }
1551
1552 # Read-only check...
1553 if ( wfReadOnly() ) {
1554 throw new ReadOnlyError;
1555 }
1556
1557 # Better double-check that it hasn't been deleted yet!
1558 $this->mPage->loadPageData(
1559 $request->wasPosted() ? WikiPage::READ_LATEST : WikiPage::READ_NORMAL
1560 );
1561 if ( !$this->mPage->exists() ) {
1562 $deleteLogPage = new LogPage( 'delete' );
1563 $outputPage = $context->getOutput();
1564 $outputPage->setPageTitle( $context->msg( 'cannotdelete-title', $title->getPrefixedText() ) );
1565 $outputPage->wrapWikiMsg( "<div class=\"error mw-error-cannotdelete\">\n$1\n</div>",
1566 [ 'cannotdelete', wfEscapeWikiText( $title->getPrefixedText() ) ]
1567 );
1568 $outputPage->addHTML(
1569 Xml::element( 'h2', null, $deleteLogPage->getName()->text() )
1570 );
1571 LogEventsList::showLogExtract(
1572 $outputPage,
1573 'delete',
1574 $title
1575 );
1576
1577 return;
1578 }
1579
1580 $deleteReasonList = $request->getText( 'wpDeleteReasonList', 'other' );
1581 $deleteReason = $request->getText( 'wpReason' );
1582
1583 if ( $deleteReasonList == 'other' ) {
1584 $reason = $deleteReason;
1585 } elseif ( $deleteReason != '' ) {
1586 // Entry from drop down menu + additional comment
1587 $colonseparator = wfMessage( 'colon-separator' )->inContentLanguage()->text();
1588 $reason = $deleteReasonList . $colonseparator . $deleteReason;
1589 } else {
1590 $reason = $deleteReasonList;
1591 }
1592
1593 if ( $request->wasPosted() && $user->matchEditToken( $request->getVal( 'wpEditToken' ),
1594 [ 'delete', $this->getTitle()->getPrefixedText() ] )
1595 ) {
1596 # Flag to hide all contents of the archived revisions
1597 $suppress = $request->getVal( 'wpSuppress' ) && $user->isAllowed( 'suppressrevision' );
1598
1599 $this->doDelete( $reason, $suppress );
1600
1601 WatchAction::doWatchOrUnwatch( $request->getCheck( 'wpWatch' ), $title, $user );
1602
1603 return;
1604 }
1605
1606 // Generate deletion reason
1607 $hasHistory = false;
1608 if ( !$reason ) {
1609 try {
1610 $reason = $this->generateReason( $hasHistory );
1611 } catch ( Exception $e ) {
1612 # if a page is horribly broken, we still want to be able to
1613 # delete it. So be lenient about errors here.
1614 wfDebug( "Error while building auto delete summary: $e" );
1615 $reason = '';
1616 }
1617 }
1618
1619 // If the page has a history, insert a warning
1620 if ( $hasHistory ) {
1621 $title = $this->getTitle();
1622
1623 // The following can use the real revision count as this is only being shown for users
1624 // that can delete this page.
1625 // This, as a side-effect, also makes sure that the following query isn't being run for
1626 // pages with a larger history, unless the user has the 'bigdelete' right
1627 // (and is about to delete this page).
1628 $dbr = wfGetDB( DB_REPLICA );
1629 $revisions = $edits = (int)$dbr->selectField(
1630 'revision',
1631 'COUNT(rev_page)',
1632 [ 'rev_page' => $title->getArticleID() ],
1633 __METHOD__
1634 );
1635
1636 // @todo FIXME: i18n issue/patchwork message
1637 $context->getOutput()->addHTML(
1638 '<strong class="mw-delete-warning-revisions">' .
1639 $context->msg( 'historywarning' )->numParams( $revisions )->parse() .
1640 $context->msg( 'word-separator' )->escaped() . Linker::linkKnown( $title,
1641 $context->msg( 'history' )->escaped(),
1642 [],
1643 [ 'action' => 'history' ] ) .
1644 '</strong>'
1645 );
1646
1647 if ( $title->isBigDeletion() ) {
1648 global $wgDeleteRevisionsLimit;
1649 $context->getOutput()->wrapWikiMsg( "<div class='error'>\n$1\n</div>\n",
1650 [
1651 'delete-warning-toobig',
1652 $context->getLanguage()->formatNum( $wgDeleteRevisionsLimit )
1653 ]
1654 );
1655 }
1656 }
1657
1658 $this->confirmDelete( $reason );
1659 }
1660
1661 /**
1662 * Output deletion confirmation dialog
1663 * @todo FIXME: Move to another file?
1664 * @param string $reason Prefilled reason
1665 */
1666 public function confirmDelete( $reason ) {
1667 wfDebug( "Article::confirmDelete\n" );
1668
1669 $title = $this->getTitle();
1670 $ctx = $this->getContext();
1671 $outputPage = $ctx->getOutput();
1672 $useMediaWikiUIEverywhere = $ctx->getConfig()->get( 'UseMediaWikiUIEverywhere' );
1673 $outputPage->setPageTitle( wfMessage( 'delete-confirm', $title->getPrefixedText() ) );
1674 $outputPage->addBacklinkSubtitle( $title );
1675 $outputPage->setRobotPolicy( 'noindex,nofollow' );
1676 $backlinkCache = $title->getBacklinkCache();
1677 if ( $backlinkCache->hasLinks( 'pagelinks' ) || $backlinkCache->hasLinks( 'templatelinks' ) ) {
1678 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1679 'deleting-backlinks-warning' );
1680 }
1681 $outputPage->addWikiMsg( 'confirmdeletetext' );
1682
1683 Hooks::run( 'ArticleConfirmDelete', [ $this, $outputPage, &$reason ] );
1684
1685 $user = $this->getContext()->getUser();
1686 if ( $user->isAllowed( 'suppressrevision' ) ) {
1687 $suppress = Html::openElement( 'div', [ 'id' => 'wpDeleteSuppressRow' ] ) .
1688 Xml::checkLabel( wfMessage( 'revdelete-suppress' )->text(),
1689 'wpSuppress', 'wpSuppress', false, [ 'tabindex' => '4' ] ) .
1690 Html::closeElement( 'div' );
1691 } else {
1692 $suppress = '';
1693 }
1694 $checkWatch = $user->getBoolOption( 'watchdeletion' ) || $user->isWatched( $title );
1695 $form = Html::openElement( 'form', [ 'method' => 'post',
1696 'action' => $title->getLocalURL( 'action=delete' ), 'id' => 'deleteconfirm' ] ) .
1697 Html::openElement( 'fieldset', [ 'id' => 'mw-delete-table' ] ) .
1698 Html::element( 'legend', null, wfMessage( 'delete-legend' )->text() ) .
1699 Html::openElement( 'div', [ 'id' => 'mw-deleteconfirm-table' ] ) .
1700 Html::openElement( 'div', [ 'id' => 'wpDeleteReasonListRow' ] ) .
1701 Html::label( wfMessage( 'deletecomment' )->text(), 'wpDeleteReasonList' ) .
1702 '&nbsp;' .
1703 Xml::listDropDown(
1704 'wpDeleteReasonList',
1705 wfMessage( 'deletereason-dropdown' )->inContentLanguage()->text(),
1706 wfMessage( 'deletereasonotherlist' )->inContentLanguage()->text(),
1707 '',
1708 'wpReasonDropDown',
1709 1
1710 ) .
1711 Html::closeElement( 'div' ) .
1712 Html::openElement( 'div', [ 'id' => 'wpDeleteReasonRow' ] ) .
1713 Html::label( wfMessage( 'deleteotherreason' )->text(), 'wpReason' ) .
1714 '&nbsp;' .
1715 Html::input( 'wpReason', $reason, 'text', [
1716 'size' => '60',
1717 'maxlength' => '255',
1718 'tabindex' => '2',
1719 'id' => 'wpReason',
1720 'class' => 'mw-ui-input-inline',
1721 'autofocus'
1722 ] ) .
1723 Html::closeElement( 'div' );
1724
1725 # Disallow watching if user is not logged in
1726 if ( $user->isLoggedIn() ) {
1727 $form .=
1728 Xml::checkLabel( wfMessage( 'watchthis' )->text(),
1729 'wpWatch', 'wpWatch', $checkWatch, [ 'tabindex' => '3' ] );
1730 }
1731
1732 $form .=
1733 Html::openElement( 'div' ) .
1734 $suppress .
1735 Xml::submitButton( wfMessage( 'deletepage' )->text(),
1736 [
1737 'name' => 'wpConfirmB',
1738 'id' => 'wpConfirmB',
1739 'tabindex' => '5',
1740 'class' => $useMediaWikiUIEverywhere ? 'mw-ui-button mw-ui-destructive' : '',
1741 ]
1742 ) .
1743 Html::closeElement( 'div' ) .
1744 Html::closeElement( 'div' ) .
1745 Xml::closeElement( 'fieldset' ) .
1746 Html::hidden(
1747 'wpEditToken',
1748 $user->getEditToken( [ 'delete', $title->getPrefixedText() ] )
1749 ) .
1750 Xml::closeElement( 'form' );
1751
1752 if ( $user->isAllowed( 'editinterface' ) ) {
1753 $link = Linker::linkKnown(
1754 $ctx->msg( 'deletereason-dropdown' )->inContentLanguage()->getTitle(),
1755 wfMessage( 'delete-edit-reasonlist' )->escaped(),
1756 [],
1757 [ 'action' => 'edit' ]
1758 );
1759 $form .= '<p class="mw-delete-editreasons">' . $link . '</p>';
1760 }
1761
1762 $outputPage->addHTML( $form );
1763
1764 $deleteLogPage = new LogPage( 'delete' );
1765 $outputPage->addHTML( Xml::element( 'h2', null, $deleteLogPage->getName()->text() ) );
1766 LogEventsList::showLogExtract( $outputPage, 'delete', $title );
1767 }
1768
1769 /**
1770 * Perform a deletion and output success or failure messages
1771 * @param string $reason
1772 * @param bool $suppress
1773 */
1774 public function doDelete( $reason, $suppress = false ) {
1775 $error = '';
1776 $context = $this->getContext();
1777 $outputPage = $context->getOutput();
1778 $user = $context->getUser();
1779 $status = $this->mPage->doDeleteArticleReal( $reason, $suppress, 0, true, $error, $user );
1780
1781 if ( $status->isGood() ) {
1782 $deleted = $this->getTitle()->getPrefixedText();
1783
1784 $outputPage->setPageTitle( wfMessage( 'actioncomplete' ) );
1785 $outputPage->setRobotPolicy( 'noindex,nofollow' );
1786
1787 $loglink = '[[Special:Log/delete|' . wfMessage( 'deletionlog' )->text() . ']]';
1788
1789 $outputPage->addWikiMsg( 'deletedtext', wfEscapeWikiText( $deleted ), $loglink );
1790
1791 Hooks::run( 'ArticleDeleteAfterSuccess', [ $this->getTitle(), $outputPage ] );
1792
1793 $outputPage->returnToMain( false );
1794 } else {
1795 $outputPage->setPageTitle(
1796 wfMessage( 'cannotdelete-title',
1797 $this->getTitle()->getPrefixedText() )
1798 );
1799
1800 if ( $error == '' ) {
1801 $outputPage->addWikiText(
1802 "<div class=\"error mw-error-cannotdelete\">\n" . $status->getWikiText() . "\n</div>"
1803 );
1804 $deleteLogPage = new LogPage( 'delete' );
1805 $outputPage->addHTML( Xml::element( 'h2', null, $deleteLogPage->getName()->text() ) );
1806
1807 LogEventsList::showLogExtract(
1808 $outputPage,
1809 'delete',
1810 $this->getTitle()
1811 );
1812 } else {
1813 $outputPage->addHTML( $error );
1814 }
1815 }
1816 }
1817
1818 /* Caching functions */
1819
1820 /**
1821 * checkLastModified returns true if it has taken care of all
1822 * output to the client that is necessary for this request.
1823 * (that is, it has sent a cached version of the page)
1824 *
1825 * @return bool True if cached version send, false otherwise
1826 */
1827 protected function tryFileCache() {
1828 static $called = false;
1829
1830 if ( $called ) {
1831 wfDebug( "Article::tryFileCache(): called twice!?\n" );
1832 return false;
1833 }
1834
1835 $called = true;
1836 if ( $this->isFileCacheable() ) {
1837 $cache = new HTMLFileCache( $this->getTitle(), 'view' );
1838 if ( $cache->isCacheGood( $this->mPage->getTouched() ) ) {
1839 wfDebug( "Article::tryFileCache(): about to load file\n" );
1840 $cache->loadFromFileCache( $this->getContext() );
1841 return true;
1842 } else {
1843 wfDebug( "Article::tryFileCache(): starting buffer\n" );
1844 ob_start( [ &$cache, 'saveToFileCache' ] );
1845 }
1846 } else {
1847 wfDebug( "Article::tryFileCache(): not cacheable\n" );
1848 }
1849
1850 return false;
1851 }
1852
1853 /**
1854 * Check if the page can be cached
1855 * @param integer $mode One of the HTMLFileCache::MODE_* constants (since 1.28)
1856 * @return bool
1857 */
1858 public function isFileCacheable( $mode = HTMLFileCache::MODE_NORMAL ) {
1859 $cacheable = false;
1860
1861 if ( HTMLFileCache::useFileCache( $this->getContext(), $mode ) ) {
1862 $cacheable = $this->mPage->getId()
1863 && !$this->mRedirectedFrom && !$this->getTitle()->isRedirect();
1864 // Extension may have reason to disable file caching on some pages.
1865 if ( $cacheable ) {
1866 // Avoid PHP 7.1 warning of passing $this by reference
1867 $articlePage = $this;
1868 $cacheable = Hooks::run( 'IsFileCacheable', [ &$articlePage ] );
1869 }
1870 }
1871
1872 return $cacheable;
1873 }
1874
1875 /**#@-*/
1876
1877 /**
1878 * Lightweight method to get the parser output for a page, checking the parser cache
1879 * and so on. Doesn't consider most of the stuff that WikiPage::view is forced to
1880 * consider, so it's not appropriate to use there.
1881 *
1882 * @since 1.16 (r52326) for LiquidThreads
1883 *
1884 * @param int|null $oldid Revision ID or null
1885 * @param User $user The relevant user
1886 * @return ParserOutput|bool ParserOutput or false if the given revision ID is not found
1887 */
1888 public function getParserOutput( $oldid = null, User $user = null ) {
1889 // XXX: bypasses mParserOptions and thus setParserOptions()
1890
1891 if ( $user === null ) {
1892 $parserOptions = $this->getParserOptions();
1893 } else {
1894 $parserOptions = $this->mPage->makeParserOptions( $user );
1895 }
1896
1897 return $this->mPage->getParserOutput( $parserOptions, $oldid );
1898 }
1899
1900 /**
1901 * Override the ParserOptions used to render the primary article wikitext.
1902 *
1903 * @param ParserOptions $options
1904 * @throws MWException If the parser options where already initialized.
1905 */
1906 public function setParserOptions( ParserOptions $options ) {
1907 if ( $this->mParserOptions ) {
1908 throw new MWException( "can't change parser options after they have already been set" );
1909 }
1910
1911 // clone, so if $options is modified later, it doesn't confuse the parser cache.
1912 $this->mParserOptions = clone $options;
1913 }
1914
1915 /**
1916 * Get parser options suitable for rendering the primary article wikitext
1917 * @return ParserOptions
1918 */
1919 public function getParserOptions() {
1920 if ( !$this->mParserOptions ) {
1921 $this->mParserOptions = $this->mPage->makeParserOptions( $this->getContext() );
1922 }
1923 // Clone to allow modifications of the return value without affecting cache
1924 return clone $this->mParserOptions;
1925 }
1926
1927 /**
1928 * Sets the context this Article is executed in
1929 *
1930 * @param IContextSource $context
1931 * @since 1.18
1932 */
1933 public function setContext( $context ) {
1934 $this->mContext = $context;
1935 }
1936
1937 /**
1938 * Gets the context this Article is executed in
1939 *
1940 * @return IContextSource
1941 * @since 1.18
1942 */
1943 public function getContext() {
1944 if ( $this->mContext instanceof IContextSource ) {
1945 return $this->mContext;
1946 } else {
1947 wfDebug( __METHOD__ . " called and \$mContext is null. " .
1948 "Return RequestContext::getMain(); for sanity\n" );
1949 return RequestContext::getMain();
1950 }
1951 }
1952
1953 /**
1954 * Use PHP's magic __get handler to handle accessing of
1955 * raw WikiPage fields for backwards compatibility.
1956 *
1957 * @param string $fname Field name
1958 * @return mixed
1959 */
1960 public function __get( $fname ) {
1961 if ( property_exists( $this->mPage, $fname ) ) {
1962 # wfWarn( "Access to raw $fname field " . __CLASS__ );
1963 return $this->mPage->$fname;
1964 }
1965 trigger_error( 'Inaccessible property via __get(): ' . $fname, E_USER_NOTICE );
1966 }
1967
1968 /**
1969 * Use PHP's magic __set handler to handle setting of
1970 * raw WikiPage fields for backwards compatibility.
1971 *
1972 * @param string $fname Field name
1973 * @param mixed $fvalue New value
1974 */
1975 public function __set( $fname, $fvalue ) {
1976 if ( property_exists( $this->mPage, $fname ) ) {
1977 # wfWarn( "Access to raw $fname field of " . __CLASS__ );
1978 $this->mPage->$fname = $fvalue;
1979 // Note: extensions may want to toss on new fields
1980 } elseif ( !in_array( $fname, [ 'mContext', 'mPage' ] ) ) {
1981 $this->mPage->$fname = $fvalue;
1982 } else {
1983 trigger_error( 'Inaccessible property via __set(): ' . $fname, E_USER_NOTICE );
1984 }
1985 }
1986
1987 /**
1988 * Call to WikiPage function for backwards compatibility.
1989 * @see WikiPage::checkFlags
1990 */
1991 public function checkFlags( $flags ) {
1992 return $this->mPage->checkFlags( $flags );
1993 }
1994
1995 /**
1996 * Call to WikiPage function for backwards compatibility.
1997 * @see WikiPage::checkTouched
1998 */
1999 public function checkTouched() {
2000 return $this->mPage->checkTouched();
2001 }
2002
2003 /**
2004 * Call to WikiPage function for backwards compatibility.
2005 * @see WikiPage::clearPreparedEdit
2006 */
2007 public function clearPreparedEdit() {
2008 $this->mPage->clearPreparedEdit();
2009 }
2010
2011 /**
2012 * Call to WikiPage function for backwards compatibility.
2013 * @see WikiPage::doDeleteArticleReal
2014 */
2015 public function doDeleteArticleReal(
2016 $reason, $suppress = false, $u1 = null, $u2 = null, &$error = '', User $user = null,
2017 $tags = []
2018 ) {
2019 return $this->mPage->doDeleteArticleReal(
2020 $reason, $suppress, $u1, $u2, $error, $user, $tags
2021 );
2022 }
2023
2024 /**
2025 * Call to WikiPage function for backwards compatibility.
2026 * @see WikiPage::doDeleteUpdates
2027 */
2028 public function doDeleteUpdates( $id, Content $content = null ) {
2029 return $this->mPage->doDeleteUpdates( $id, $content );
2030 }
2031
2032 /**
2033 * Call to WikiPage function for backwards compatibility.
2034 * @deprecated since 1.29. Use WikiPage::doEditContent() directly instead
2035 * @see WikiPage::doEditContent
2036 */
2037 public function doEditContent( Content $content, $summary, $flags = 0, $baseRevId = false,
2038 User $user = null, $serialFormat = null
2039 ) {
2040 wfDeprecated( __METHOD__, '1.29' );
2041 return $this->mPage->doEditContent( $content, $summary, $flags, $baseRevId,
2042 $user, $serialFormat
2043 );
2044 }
2045
2046 /**
2047 * Call to WikiPage function for backwards compatibility.
2048 * @see WikiPage::doEditUpdates
2049 */
2050 public function doEditUpdates( Revision $revision, User $user, array $options = [] ) {
2051 return $this->mPage->doEditUpdates( $revision, $user, $options );
2052 }
2053
2054 /**
2055 * Call to WikiPage function for backwards compatibility.
2056 * @see WikiPage::doPurge
2057 * @note In 1.28 (and only 1.28), this took a $flags parameter that
2058 * controlled how much purging was done.
2059 */
2060 public function doPurge() {
2061 return $this->mPage->doPurge();
2062 }
2063
2064 /**
2065 * Call to WikiPage function for backwards compatibility.
2066 * @see WikiPage::getLastPurgeTimestamp
2067 * @deprecated since 1.29
2068 */
2069 public function getLastPurgeTimestamp() {
2070 wfDeprecated( __METHOD__, '1.29' );
2071 return $this->mPage->getLastPurgeTimestamp();
2072 }
2073
2074 /**
2075 * Call to WikiPage function for backwards compatibility.
2076 * @see WikiPage::doViewUpdates
2077 */
2078 public function doViewUpdates( User $user, $oldid = 0 ) {
2079 $this->mPage->doViewUpdates( $user, $oldid );
2080 }
2081
2082 /**
2083 * Call to WikiPage function for backwards compatibility.
2084 * @see WikiPage::exists
2085 */
2086 public function exists() {
2087 return $this->mPage->exists();
2088 }
2089
2090 /**
2091 * Call to WikiPage function for backwards compatibility.
2092 * @see WikiPage::followRedirect
2093 */
2094 public function followRedirect() {
2095 return $this->mPage->followRedirect();
2096 }
2097
2098 /**
2099 * Call to WikiPage function for backwards compatibility.
2100 * @see ContentHandler::getActionOverrides
2101 */
2102 public function getActionOverrides() {
2103 return $this->mPage->getActionOverrides();
2104 }
2105
2106 /**
2107 * Call to WikiPage function for backwards compatibility.
2108 * @see WikiPage::getAutoDeleteReason
2109 */
2110 public function getAutoDeleteReason( &$hasHistory ) {
2111 return $this->mPage->getAutoDeleteReason( $hasHistory );
2112 }
2113
2114 /**
2115 * Call to WikiPage function for backwards compatibility.
2116 * @see WikiPage::getCategories
2117 */
2118 public function getCategories() {
2119 return $this->mPage->getCategories();
2120 }
2121
2122 /**
2123 * Call to WikiPage function for backwards compatibility.
2124 * @see WikiPage::getComment
2125 */
2126 public function getComment( $audience = Revision::FOR_PUBLIC, User $user = null ) {
2127 return $this->mPage->getComment( $audience, $user );
2128 }
2129
2130 /**
2131 * Call to WikiPage function for backwards compatibility.
2132 * @see WikiPage::getContentHandler
2133 */
2134 public function getContentHandler() {
2135 return $this->mPage->getContentHandler();
2136 }
2137
2138 /**
2139 * Call to WikiPage function for backwards compatibility.
2140 * @see WikiPage::getContentModel
2141 */
2142 public function getContentModel() {
2143 return $this->mPage->getContentModel();
2144 }
2145
2146 /**
2147 * Call to WikiPage function for backwards compatibility.
2148 * @see WikiPage::getContributors
2149 */
2150 public function getContributors() {
2151 return $this->mPage->getContributors();
2152 }
2153
2154 /**
2155 * Call to WikiPage function for backwards compatibility.
2156 * @see WikiPage::getCreator
2157 */
2158 public function getCreator( $audience = Revision::FOR_PUBLIC, User $user = null ) {
2159 return $this->mPage->getCreator( $audience, $user );
2160 }
2161
2162 /**
2163 * Call to WikiPage function for backwards compatibility.
2164 * @see WikiPage::getDeletionUpdates
2165 */
2166 public function getDeletionUpdates( Content $content = null ) {
2167 return $this->mPage->getDeletionUpdates( $content );
2168 }
2169
2170 /**
2171 * Call to WikiPage function for backwards compatibility.
2172 * @see WikiPage::getHiddenCategories
2173 */
2174 public function getHiddenCategories() {
2175 return $this->mPage->getHiddenCategories();
2176 }
2177
2178 /**
2179 * Call to WikiPage function for backwards compatibility.
2180 * @see WikiPage::getId
2181 */
2182 public function getId() {
2183 return $this->mPage->getId();
2184 }
2185
2186 /**
2187 * Call to WikiPage function for backwards compatibility.
2188 * @see WikiPage::getLatest
2189 */
2190 public function getLatest() {
2191 return $this->mPage->getLatest();
2192 }
2193
2194 /**
2195 * Call to WikiPage function for backwards compatibility.
2196 * @see WikiPage::getLinksTimestamp
2197 */
2198 public function getLinksTimestamp() {
2199 return $this->mPage->getLinksTimestamp();
2200 }
2201
2202 /**
2203 * Call to WikiPage function for backwards compatibility.
2204 * @see WikiPage::getMinorEdit
2205 */
2206 public function getMinorEdit() {
2207 return $this->mPage->getMinorEdit();
2208 }
2209
2210 /**
2211 * Call to WikiPage function for backwards compatibility.
2212 * @see WikiPage::getOldestRevision
2213 */
2214 public function getOldestRevision() {
2215 return $this->mPage->getOldestRevision();
2216 }
2217
2218 /**
2219 * Call to WikiPage function for backwards compatibility.
2220 * @see WikiPage::getRedirectTarget
2221 */
2222 public function getRedirectTarget() {
2223 return $this->mPage->getRedirectTarget();
2224 }
2225
2226 /**
2227 * Call to WikiPage function for backwards compatibility.
2228 * @see WikiPage::getRedirectURL
2229 */
2230 public function getRedirectURL( $rt ) {
2231 return $this->mPage->getRedirectURL( $rt );
2232 }
2233
2234 /**
2235 * Call to WikiPage function for backwards compatibility.
2236 * @see WikiPage::getRevision
2237 */
2238 public function getRevision() {
2239 return $this->mPage->getRevision();
2240 }
2241
2242 /**
2243 * Call to WikiPage function for backwards compatibility.
2244 * @see WikiPage::getTimestamp
2245 */
2246 public function getTimestamp() {
2247 return $this->mPage->getTimestamp();
2248 }
2249
2250 /**
2251 * Call to WikiPage function for backwards compatibility.
2252 * @see WikiPage::getTouched
2253 */
2254 public function getTouched() {
2255 return $this->mPage->getTouched();
2256 }
2257
2258 /**
2259 * Call to WikiPage function for backwards compatibility.
2260 * @see WikiPage::getUndoContent
2261 */
2262 public function getUndoContent( Revision $undo, Revision $undoafter = null ) {
2263 return $this->mPage->getUndoContent( $undo, $undoafter );
2264 }
2265
2266 /**
2267 * Call to WikiPage function for backwards compatibility.
2268 * @see WikiPage::getUser
2269 */
2270 public function getUser( $audience = Revision::FOR_PUBLIC, User $user = null ) {
2271 return $this->mPage->getUser( $audience, $user );
2272 }
2273
2274 /**
2275 * Call to WikiPage function for backwards compatibility.
2276 * @see WikiPage::getUserText
2277 */
2278 public function getUserText( $audience = Revision::FOR_PUBLIC, User $user = null ) {
2279 return $this->mPage->getUserText( $audience, $user );
2280 }
2281
2282 /**
2283 * Call to WikiPage function for backwards compatibility.
2284 * @see WikiPage::hasViewableContent
2285 */
2286 public function hasViewableContent() {
2287 return $this->mPage->hasViewableContent();
2288 }
2289
2290 /**
2291 * Call to WikiPage function for backwards compatibility.
2292 * @see WikiPage::insertOn
2293 */
2294 public function insertOn( $dbw, $pageId = null ) {
2295 return $this->mPage->insertOn( $dbw, $pageId );
2296 }
2297
2298 /**
2299 * Call to WikiPage function for backwards compatibility.
2300 * @see WikiPage::insertProtectNullRevision
2301 */
2302 public function insertProtectNullRevision( $revCommentMsg, array $limit,
2303 array $expiry, $cascade, $reason, $user = null
2304 ) {
2305 return $this->mPage->insertProtectNullRevision( $revCommentMsg, $limit,
2306 $expiry, $cascade, $reason, $user
2307 );
2308 }
2309
2310 /**
2311 * Call to WikiPage function for backwards compatibility.
2312 * @see WikiPage::insertRedirect
2313 */
2314 public function insertRedirect() {
2315 return $this->mPage->insertRedirect();
2316 }
2317
2318 /**
2319 * Call to WikiPage function for backwards compatibility.
2320 * @see WikiPage::insertRedirectEntry
2321 */
2322 public function insertRedirectEntry( Title $rt, $oldLatest = null ) {
2323 return $this->mPage->insertRedirectEntry( $rt, $oldLatest );
2324 }
2325
2326 /**
2327 * Call to WikiPage function for backwards compatibility.
2328 * @see WikiPage::isCountable
2329 */
2330 public function isCountable( $editInfo = false ) {
2331 return $this->mPage->isCountable( $editInfo );
2332 }
2333
2334 /**
2335 * Call to WikiPage function for backwards compatibility.
2336 * @see WikiPage::isRedirect
2337 */
2338 public function isRedirect() {
2339 return $this->mPage->isRedirect();
2340 }
2341
2342 /**
2343 * Call to WikiPage function for backwards compatibility.
2344 * @see WikiPage::loadFromRow
2345 */
2346 public function loadFromRow( $data, $from ) {
2347 return $this->mPage->loadFromRow( $data, $from );
2348 }
2349
2350 /**
2351 * Call to WikiPage function for backwards compatibility.
2352 * @see WikiPage::loadPageData
2353 */
2354 public function loadPageData( $from = 'fromdb' ) {
2355 $this->mPage->loadPageData( $from );
2356 }
2357
2358 /**
2359 * Call to WikiPage function for backwards compatibility.
2360 * @see WikiPage::lockAndGetLatest
2361 */
2362 public function lockAndGetLatest() {
2363 return $this->mPage->lockAndGetLatest();
2364 }
2365
2366 /**
2367 * Call to WikiPage function for backwards compatibility.
2368 * @see WikiPage::makeParserOptions
2369 */
2370 public function makeParserOptions( $context ) {
2371 return $this->mPage->makeParserOptions( $context );
2372 }
2373
2374 /**
2375 * Call to WikiPage function for backwards compatibility.
2376 * @see WikiPage::pageDataFromId
2377 */
2378 public function pageDataFromId( $dbr, $id, $options = [] ) {
2379 return $this->mPage->pageDataFromId( $dbr, $id, $options );
2380 }
2381
2382 /**
2383 * Call to WikiPage function for backwards compatibility.
2384 * @see WikiPage::pageDataFromTitle
2385 */
2386 public function pageDataFromTitle( $dbr, $title, $options = [] ) {
2387 return $this->mPage->pageDataFromTitle( $dbr, $title, $options );
2388 }
2389
2390 /**
2391 * Call to WikiPage function for backwards compatibility.
2392 * @see WikiPage::prepareContentForEdit
2393 */
2394 public function prepareContentForEdit(
2395 Content $content, $revision = null, User $user = null,
2396 $serialFormat = null, $useCache = true
2397 ) {
2398 return $this->mPage->prepareContentForEdit(
2399 $content, $revision, $user,
2400 $serialFormat, $useCache
2401 );
2402 }
2403
2404 /**
2405 * Call to WikiPage function for backwards compatibility.
2406 * @see WikiPage::protectDescription
2407 */
2408 public function protectDescription( array $limit, array $expiry ) {
2409 return $this->mPage->protectDescription( $limit, $expiry );
2410 }
2411
2412 /**
2413 * Call to WikiPage function for backwards compatibility.
2414 * @see WikiPage::protectDescriptionLog
2415 */
2416 public function protectDescriptionLog( array $limit, array $expiry ) {
2417 return $this->mPage->protectDescriptionLog( $limit, $expiry );
2418 }
2419
2420 /**
2421 * Call to WikiPage function for backwards compatibility.
2422 * @see WikiPage::replaceSectionAtRev
2423 */
2424 public function replaceSectionAtRev( $sectionId, Content $sectionContent,
2425 $sectionTitle = '', $baseRevId = null
2426 ) {
2427 return $this->mPage->replaceSectionAtRev( $sectionId, $sectionContent,
2428 $sectionTitle, $baseRevId
2429 );
2430 }
2431
2432 /**
2433 * Call to WikiPage function for backwards compatibility.
2434 * @see WikiPage::replaceSectionContent
2435 */
2436 public function replaceSectionContent(
2437 $sectionId, Content $sectionContent, $sectionTitle = '', $edittime = null
2438 ) {
2439 return $this->mPage->replaceSectionContent(
2440 $sectionId, $sectionContent, $sectionTitle, $edittime
2441 );
2442 }
2443
2444 /**
2445 * Call to WikiPage function for backwards compatibility.
2446 * @see WikiPage::setTimestamp
2447 */
2448 public function setTimestamp( $ts ) {
2449 return $this->mPage->setTimestamp( $ts );
2450 }
2451
2452 /**
2453 * Call to WikiPage function for backwards compatibility.
2454 * @see WikiPage::shouldCheckParserCache
2455 */
2456 public function shouldCheckParserCache( ParserOptions $parserOptions, $oldId ) {
2457 return $this->mPage->shouldCheckParserCache( $parserOptions, $oldId );
2458 }
2459
2460 /**
2461 * Call to WikiPage function for backwards compatibility.
2462 * @see WikiPage::supportsSections
2463 */
2464 public function supportsSections() {
2465 return $this->mPage->supportsSections();
2466 }
2467
2468 /**
2469 * Call to WikiPage function for backwards compatibility.
2470 * @see WikiPage::triggerOpportunisticLinksUpdate
2471 */
2472 public function triggerOpportunisticLinksUpdate( ParserOutput $parserOutput ) {
2473 return $this->mPage->triggerOpportunisticLinksUpdate( $parserOutput );
2474 }
2475
2476 /**
2477 * Call to WikiPage function for backwards compatibility.
2478 * @see WikiPage::updateCategoryCounts
2479 */
2480 public function updateCategoryCounts( array $added, array $deleted, $id = 0 ) {
2481 return $this->mPage->updateCategoryCounts( $added, $deleted, $id );
2482 }
2483
2484 /**
2485 * Call to WikiPage function for backwards compatibility.
2486 * @see WikiPage::updateIfNewerOn
2487 */
2488 public function updateIfNewerOn( $dbw, $revision ) {
2489 return $this->mPage->updateIfNewerOn( $dbw, $revision );
2490 }
2491
2492 /**
2493 * Call to WikiPage function for backwards compatibility.
2494 * @see WikiPage::updateRedirectOn
2495 */
2496 public function updateRedirectOn( $dbw, $redirectTitle, $lastRevIsRedirect = null ) {
2497 return $this->mPage->updateRedirectOn( $dbw, $redirectTitle, $lastRevIsRedirect = null );
2498 }
2499
2500 /**
2501 * Call to WikiPage function for backwards compatibility.
2502 * @see WikiPage::updateRevisionOn
2503 */
2504 public function updateRevisionOn( $dbw, $revision, $lastRevision = null,
2505 $lastRevIsRedirect = null
2506 ) {
2507 return $this->mPage->updateRevisionOn( $dbw, $revision, $lastRevision,
2508 $lastRevIsRedirect
2509 );
2510 }
2511
2512 /**
2513 * @param array $limit
2514 * @param array $expiry
2515 * @param bool $cascade
2516 * @param string $reason
2517 * @param User $user
2518 * @return Status
2519 */
2520 public function doUpdateRestrictions( array $limit, array $expiry, &$cascade,
2521 $reason, User $user
2522 ) {
2523 return $this->mPage->doUpdateRestrictions( $limit, $expiry, $cascade, $reason, $user );
2524 }
2525
2526 /**
2527 * @param array $limit
2528 * @param string $reason
2529 * @param int $cascade
2530 * @param array $expiry
2531 * @return bool
2532 */
2533 public function updateRestrictions( $limit = [], $reason = '',
2534 &$cascade = 0, $expiry = []
2535 ) {
2536 return $this->mPage->doUpdateRestrictions(
2537 $limit,
2538 $expiry,
2539 $cascade,
2540 $reason,
2541 $this->getContext()->getUser()
2542 );
2543 }
2544
2545 /**
2546 * @param string $reason
2547 * @param bool $suppress
2548 * @param int $u1 Unused
2549 * @param bool $u2 Unused
2550 * @param string $error
2551 * @return bool
2552 */
2553 public function doDeleteArticle(
2554 $reason, $suppress = false, $u1 = null, $u2 = null, &$error = ''
2555 ) {
2556 return $this->mPage->doDeleteArticle( $reason, $suppress, $u1, $u2, $error );
2557 }
2558
2559 /**
2560 * @param string $fromP
2561 * @param string $summary
2562 * @param string $token
2563 * @param bool $bot
2564 * @param array $resultDetails
2565 * @param User|null $user
2566 * @return array
2567 */
2568 public function doRollback( $fromP, $summary, $token, $bot, &$resultDetails, User $user = null ) {
2569 $user = is_null( $user ) ? $this->getContext()->getUser() : $user;
2570 return $this->mPage->doRollback( $fromP, $summary, $token, $bot, $resultDetails, $user );
2571 }
2572
2573 /**
2574 * @param string $fromP
2575 * @param string $summary
2576 * @param bool $bot
2577 * @param array $resultDetails
2578 * @param User|null $guser
2579 * @return array
2580 */
2581 public function commitRollback( $fromP, $summary, $bot, &$resultDetails, User $guser = null ) {
2582 $guser = is_null( $guser ) ? $this->getContext()->getUser() : $guser;
2583 return $this->mPage->commitRollback( $fromP, $summary, $bot, $resultDetails, $guser );
2584 }
2585
2586 /**
2587 * @param bool $hasHistory
2588 * @return mixed
2589 */
2590 public function generateReason( &$hasHistory ) {
2591 $title = $this->mPage->getTitle();
2592 $handler = ContentHandler::getForTitle( $title );
2593 return $handler->getAutoDeleteReason( $title, $hasHistory );
2594 }
2595
2596 /**
2597 * @return array
2598 *
2599 * @deprecated since 1.24, use WikiPage::selectFields() instead
2600 */
2601 public static function selectFields() {
2602 wfDeprecated( __METHOD__, '1.24' );
2603 return WikiPage::selectFields();
2604 }
2605
2606 /**
2607 * @param Title $title
2608 *
2609 * @deprecated since 1.24, use WikiPage::onArticleCreate() instead
2610 */
2611 public static function onArticleCreate( $title ) {
2612 wfDeprecated( __METHOD__, '1.24' );
2613 WikiPage::onArticleCreate( $title );
2614 }
2615
2616 /**
2617 * @param Title $title
2618 *
2619 * @deprecated since 1.24, use WikiPage::onArticleDelete() instead
2620 */
2621 public static function onArticleDelete( $title ) {
2622 wfDeprecated( __METHOD__, '1.24' );
2623 WikiPage::onArticleDelete( $title );
2624 }
2625
2626 /**
2627 * @param Title $title
2628 *
2629 * @deprecated since 1.24, use WikiPage::onArticleEdit() instead
2630 */
2631 public static function onArticleEdit( $title ) {
2632 wfDeprecated( __METHOD__, '1.24' );
2633 WikiPage::onArticleEdit( $title );
2634 }
2635
2636 // ******
2637 }