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1 | <?php |
2 | /** |
3 | * This program is free software; you can redistribute it and/or modify |
4 | * it under the terms of the GNU General Public License as published by |
5 | * the Free Software Foundation; either version 2 of the License, or |
6 | * (at your option) any later version. |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
16 | * http://www.gnu.org/copyleft/gpl.html |
17 | * |
18 | * @file |
19 | */ |
20 | |
21 | use MediaWiki\Block\DatabaseBlock; |
22 | use MediaWiki\Block\DatabaseBlockStore; |
23 | use MediaWiki\CommentFormatter\CommentFormatter; |
24 | use MediaWiki\Context\IContextSource; |
25 | use MediaWiki\Context\RequestContext; |
26 | use MediaWiki\EditPage\EditPage; |
27 | use MediaWiki\HookContainer\HookRunner; |
28 | use MediaWiki\HookContainer\ProtectedHookAccessorTrait; |
29 | use MediaWiki\Html\Html; |
30 | use MediaWiki\Linker\Linker; |
31 | use MediaWiki\Linker\LinkRenderer; |
32 | use MediaWiki\MainConfigNames; |
33 | use MediaWiki\MediaWikiServices; |
34 | use MediaWiki\Output\OutputPage; |
35 | use MediaWiki\Page\ParserOutputAccess; |
36 | use MediaWiki\Page\ProtectionForm; |
37 | use MediaWiki\Page\WikiPageFactory; |
38 | use MediaWiki\Parser\Parser; |
39 | use MediaWiki\Parser\ParserOutput; |
40 | use MediaWiki\Permissions\Authority; |
41 | use MediaWiki\Permissions\PermissionStatus; |
42 | use MediaWiki\Revision\ArchivedRevisionLookup; |
43 | use MediaWiki\Revision\BadRevisionException; |
44 | use MediaWiki\Revision\RevisionRecord; |
45 | use MediaWiki\Revision\RevisionStore; |
46 | use MediaWiki\Revision\SlotRecord; |
47 | use MediaWiki\Status\Status; |
48 | use MediaWiki\Title\Title; |
49 | use MediaWiki\User\Options\UserOptionsLookup; |
50 | use MediaWiki\User\User; |
51 | use MediaWiki\User\UserIdentity; |
52 | use MediaWiki\User\UserNameUtils; |
53 | use Wikimedia\IPUtils; |
54 | use Wikimedia\LightweightObjectStore\ExpirationAwareness; |
55 | use Wikimedia\NonSerializable\NonSerializableTrait; |
56 | use Wikimedia\Rdbms\IConnectionProvider; |
57 | |
58 | /** |
59 | * Legacy class representing an editable page and handling UI for some page actions. |
60 | * |
61 | * This has largely been superseded by WikiPage, with Action subclasses for the |
62 | * user interface of page actions, and service classes for their backend logic. |
63 | * |
64 | * @todo Move and refactor remaining code |
65 | * @todo Deprecate |
66 | */ |
67 | class Article implements Page { |
68 | use ProtectedHookAccessorTrait; |
69 | use NonSerializableTrait; |
70 | |
71 | /** |
72 | * @var IContextSource|null The context this Article is executed in. |
73 | * If null, RequestContext::getMain() is used. |
74 | * @deprecated since 1.35, must be private, use {@link getContext} |
75 | */ |
76 | protected $mContext; |
77 | |
78 | /** @var WikiPage The WikiPage object of this instance */ |
79 | protected $mPage; |
80 | |
81 | /** |
82 | * @var int|null The oldid of the article that was requested to be shown, |
83 | * 0 for the current revision. |
84 | */ |
85 | public $mOldId; |
86 | |
87 | /** @var Title|null Title from which we were redirected here, if any. */ |
88 | public $mRedirectedFrom = null; |
89 | |
90 | /** @var string|false URL to redirect to or false if none */ |
91 | public $mRedirectUrl = false; |
92 | |
93 | /** |
94 | * @var Status|null represents the outcome of fetchRevisionRecord(). |
95 | * $fetchResult->value is the RevisionRecord object, if the operation was successful. |
96 | */ |
97 | private $fetchResult = null; |
98 | |
99 | /** |
100 | * @var ParserOutput|null|false The ParserOutput generated for viewing the page, |
101 | * initialized by view(). If no ParserOutput could be generated, this is set to false. |
102 | * @deprecated since 1.32 |
103 | */ |
104 | public $mParserOutput = null; |
105 | |
106 | /** |
107 | * @var bool Whether render() was called. With the way subclasses work |
108 | * here, there doesn't seem to be any other way to stop calling |
109 | * OutputPage::enableSectionEditLinks() and still have it work as it did before. |
110 | */ |
111 | protected $viewIsRenderAction = false; |
112 | |
113 | /** |
114 | * @var LinkRenderer |
115 | */ |
116 | protected $linkRenderer; |
117 | |
118 | /** |
119 | * @var RevisionStore |
120 | */ |
121 | private $revisionStore; |
122 | |
123 | /** |
124 | * @var UserNameUtils |
125 | */ |
126 | private $userNameUtils; |
127 | |
128 | /** |
129 | * @var UserOptionsLookup |
130 | */ |
131 | private $userOptionsLookup; |
132 | |
133 | /** @var CommentFormatter */ |
134 | private $commentFormatter; |
135 | |
136 | /** @var WikiPageFactory */ |
137 | private $wikiPageFactory; |
138 | |
139 | /** @var JobQueueGroup */ |
140 | private $jobQueueGroup; |
141 | |
142 | /** @var ArchivedRevisionLookup */ |
143 | private $archivedRevisionLookup; |
144 | |
145 | protected IConnectionProvider $dbProvider; |
146 | |
147 | /** @var DatabaseBlockStore */ |
148 | protected $blockStore; |
149 | |
150 | /** |
151 | * @var RevisionRecord|null Revision to be shown |
152 | * |
153 | * Initialized by getOldIDFromRequest() or fetchRevisionRecord(). While the output of |
154 | * Article::view is typically based on this revision, it may be replaced by extensions. |
155 | */ |
156 | private $mRevisionRecord = null; |
157 | |
158 | /** |
159 | * @param Title $title |
160 | * @param int|null $oldId Revision ID, null to fetch from request, zero for current |
161 | */ |
162 | public function __construct( Title $title, $oldId = null ) { |
163 | $this->mOldId = $oldId; |
164 | $this->mPage = $this->newPage( $title ); |
165 | |
166 | $services = MediaWikiServices::getInstance(); |
167 | $this->linkRenderer = $services->getLinkRenderer(); |
168 | $this->revisionStore = $services->getRevisionStore(); |
169 | $this->userNameUtils = $services->getUserNameUtils(); |
170 | $this->userOptionsLookup = $services->getUserOptionsLookup(); |
171 | $this->commentFormatter = $services->getCommentFormatter(); |
172 | $this->wikiPageFactory = $services->getWikiPageFactory(); |
173 | $this->jobQueueGroup = $services->getJobQueueGroup(); |
174 | $this->archivedRevisionLookup = $services->getArchivedRevisionLookup(); |
175 | $this->dbProvider = $services->getConnectionProvider(); |
176 | $this->blockStore = $services->getDatabaseBlockStore(); |
177 | } |
178 | |
179 | /** |
180 | * @param Title $title |
181 | * @return WikiPage |
182 | */ |
183 | protected function newPage( Title $title ) { |
184 | return new WikiPage( $title ); |
185 | } |
186 | |
187 | /** |
188 | * Constructor from a page id |
189 | * @param int $id Article ID to load |
190 | * @return Article|null |
191 | */ |
192 | public static function newFromID( $id ) { |
193 | $t = Title::newFromID( $id ); |
194 | return $t === null ? null : new static( $t ); |
195 | } |
196 | |
197 | /** |
198 | * Create an Article object of the appropriate class for the given page. |
199 | * |
200 | * @param Title $title |
201 | * @param IContextSource $context |
202 | * @return Article |
203 | */ |
204 | public static function newFromTitle( $title, IContextSource $context ): self { |
205 | if ( $title->getNamespace() === NS_MEDIA ) { |
206 | // XXX: This should not be here, but where should it go? |
207 | $title = Title::makeTitle( NS_FILE, $title->getDBkey() ); |
208 | } |
209 | |
210 | $page = null; |
211 | ( new HookRunner( MediaWikiServices::getInstance()->getHookContainer() ) ) |
212 | // @phan-suppress-next-line PhanTypeMismatchArgument Type mismatch on pass-by-ref args |
213 | ->onArticleFromTitle( $title, $page, $context ); |
214 | if ( !$page ) { |
215 | switch ( $title->getNamespace() ) { |
216 | case NS_FILE: |
217 | $page = new ImagePage( $title ); |
218 | break; |
219 | case NS_CATEGORY: |
220 | $page = new CategoryPage( $title ); |
221 | break; |
222 | default: |
223 | $page = new Article( $title ); |
224 | } |
225 | } |
226 | $page->setContext( $context ); |
227 | |
228 | return $page; |
229 | } |
230 | |
231 | /** |
232 | * Create an Article object of the appropriate class for the given page. |
233 | * |
234 | * @param WikiPage $page |
235 | * @param IContextSource $context |
236 | * @return Article |
237 | */ |
238 | public static function newFromWikiPage( WikiPage $page, IContextSource $context ) { |
239 | $article = self::newFromTitle( $page->getTitle(), $context ); |
240 | $article->mPage = $page; // override to keep process cached vars |
241 | return $article; |
242 | } |
243 | |
244 | /** |
245 | * Get the page this view was redirected from |
246 | * @return Title|null |
247 | * @since 1.28 |
248 | */ |
249 | public function getRedirectedFrom() { |
250 | return $this->mRedirectedFrom; |
251 | } |
252 | |
253 | /** |
254 | * Tell the page view functions that this view was redirected |
255 | * from another page on the wiki. |
256 | * @param Title $from |
257 | */ |
258 | public function setRedirectedFrom( Title $from ) { |
259 | $this->mRedirectedFrom = $from; |
260 | } |
261 | |
262 | /** |
263 | * Get the title object of the article |
264 | * |
265 | * @return Title Title object of this page |
266 | */ |
267 | public function getTitle() { |
268 | return $this->mPage->getTitle(); |
269 | } |
270 | |
271 | /** |
272 | * Get the WikiPage object of this instance |
273 | * |
274 | * @since 1.19 |
275 | * @return WikiPage |
276 | */ |
277 | public function getPage() { |
278 | return $this->mPage; |
279 | } |
280 | |
281 | public function clear() { |
282 | $this->mRedirectedFrom = null; # Title object if set |
283 | $this->mRedirectUrl = false; |
284 | $this->mRevisionRecord = null; |
285 | $this->fetchResult = null; |
286 | |
287 | // TODO hard-deprecate direct access to public fields |
288 | |
289 | $this->mPage->clear(); |
290 | } |
291 | |
292 | /** |
293 | * @see getOldIDFromRequest() |
294 | * @see getRevIdFetched() |
295 | * |
296 | * @return int The oldid of the article that is was requested in the constructor or via the |
297 | * context's WebRequest. |
298 | */ |
299 | public function getOldID() { |
300 | if ( $this->mOldId === null ) { |
301 | $this->mOldId = $this->getOldIDFromRequest(); |
302 | } |
303 | |
304 | return $this->mOldId; |
305 | } |
306 | |
307 | /** |
308 | * Sets $this->mRedirectUrl to a correct URL if the query parameters are incorrect |
309 | * |
310 | * @return int The old id for the request |
311 | */ |
312 | public function getOldIDFromRequest() { |
313 | $this->mRedirectUrl = false; |
314 | |
315 | $request = $this->getContext()->getRequest(); |
316 | $oldid = $request->getIntOrNull( 'oldid' ); |
317 | |
318 | if ( $oldid === null ) { |
319 | return 0; |
320 | } |
321 | |
322 | if ( $oldid !== 0 ) { |
323 | # Load the given revision and check whether the page is another one. |
324 | # In that case, update this instance to reflect the change. |
325 | if ( $oldid === $this->mPage->getLatest() ) { |
326 | $this->mRevisionRecord = $this->mPage->getRevisionRecord(); |
327 | } else { |
328 | $this->mRevisionRecord = $this->revisionStore->getRevisionById( $oldid ); |
329 | if ( $this->mRevisionRecord !== null ) { |
330 | $revPageId = $this->mRevisionRecord->getPageId(); |
331 | // Revision title doesn't match the page title given? |
332 | if ( $this->mPage->getId() !== $revPageId ) { |
333 | $this->mPage = $this->wikiPageFactory->newFromID( $revPageId ); |
334 | } |
335 | } |
336 | } |
337 | } |
338 | |
339 | $oldRev = $this->mRevisionRecord; |
340 | if ( $request->getRawVal( 'direction' ) === 'next' ) { |
341 | $nextid = 0; |
342 | if ( $oldRev ) { |
343 | $nextRev = $this->revisionStore->getNextRevision( $oldRev ); |
344 | if ( $nextRev ) { |
345 | $nextid = $nextRev->getId(); |
346 | } |
347 | } |
348 | if ( $nextid ) { |
349 | $oldid = $nextid; |
350 | $this->mRevisionRecord = null; |
351 | } else { |
352 | $this->mRedirectUrl = $this->getTitle()->getFullURL( 'redirect=no' ); |
353 | } |
354 | } elseif ( $request->getRawVal( 'direction' ) === 'prev' ) { |
355 | $previd = 0; |
356 | if ( $oldRev ) { |
357 | $prevRev = $this->revisionStore->getPreviousRevision( $oldRev ); |
358 | if ( $prevRev ) { |
359 | $previd = $prevRev->getId(); |
360 | } |
361 | } |
362 | if ( $previd ) { |
363 | $oldid = $previd; |
364 | $this->mRevisionRecord = null; |
365 | } |
366 | } |
367 | |
368 | return $oldid; |
369 | } |
370 | |
371 | /** |
372 | * Fetches the revision to work on. |
373 | * The revision is loaded from the database. Refer to $this->fetchResult for the revision |
374 | * or any errors encountered while loading it. |
375 | * |
376 | * Public since 1.35 |
377 | * |
378 | * @return RevisionRecord|null |
379 | */ |
380 | public function fetchRevisionRecord() { |
381 | if ( $this->fetchResult ) { |
382 | return $this->mRevisionRecord; |
383 | } |
384 | |
385 | $oldid = $this->getOldID(); |
386 | |
387 | // $this->mRevisionRecord might already be fetched by getOldIDFromRequest() |
388 | if ( !$this->mRevisionRecord ) { |
389 | if ( !$oldid ) { |
390 | $this->mRevisionRecord = $this->mPage->getRevisionRecord(); |
391 | |
392 | if ( !$this->mRevisionRecord ) { |
393 | wfDebug( __METHOD__ . " failed to find page data for title " . |
394 | $this->getTitle()->getPrefixedText() ); |
395 | |
396 | // Output for this case is done by showMissingArticle(). |
397 | $this->fetchResult = Status::newFatal( 'noarticletext' ); |
398 | return null; |
399 | } |
400 | } else { |
401 | $this->mRevisionRecord = $this->revisionStore->getRevisionById( $oldid ); |
402 | |
403 | if ( !$this->mRevisionRecord ) { |
404 | wfDebug( __METHOD__ . " failed to load revision, rev_id $oldid" ); |
405 | |
406 | $this->fetchResult = Status::newFatal( $this->getMissingRevisionMsg( $oldid ) ); |
407 | return null; |
408 | } |
409 | } |
410 | } |
411 | |
412 | if ( !$this->mRevisionRecord->userCan( RevisionRecord::DELETED_TEXT, $this->getContext()->getAuthority() ) ) { |
413 | wfDebug( __METHOD__ . " failed to retrieve content of revision " . $this->mRevisionRecord->getId() ); |
414 | |
415 | // Output for this case is done by showDeletedRevisionHeader(). |
416 | // title used in wikilinks, should not contain whitespaces |
417 | $this->fetchResult = new Status; |
418 | $title = $this->getTitle()->getPrefixedDBkey(); |
419 | |
420 | if ( $this->mRevisionRecord->isDeleted( RevisionRecord::DELETED_RESTRICTED ) ) { |
421 | $this->fetchResult->fatal( 'rev-suppressed-text' ); |
422 | } else { |
423 | $this->fetchResult->fatal( 'rev-deleted-text-permission', $title ); |
424 | } |
425 | |
426 | return null; |
427 | } |
428 | |
429 | $this->fetchResult = Status::newGood( $this->mRevisionRecord ); |
430 | return $this->mRevisionRecord; |
431 | } |
432 | |
433 | /** |
434 | * Returns true if the currently-referenced revision is the current edit |
435 | * to this page (and it exists). |
436 | * @return bool |
437 | */ |
438 | public function isCurrent() { |
439 | # If no oldid, this is the current version. |
440 | if ( $this->getOldID() == 0 ) { |
441 | return true; |
442 | } |
443 | |
444 | return $this->mPage->exists() && |
445 | $this->mRevisionRecord && |
446 | $this->mRevisionRecord->isCurrent(); |
447 | } |
448 | |
449 | /** |
450 | * Use this to fetch the rev ID used on page views |
451 | * |
452 | * Before fetchRevisionRecord was called, this returns the page's latest revision, |
453 | * regardless of what getOldID() returns. |
454 | * |
455 | * @return int Revision ID of last article revision |
456 | */ |
457 | public function getRevIdFetched() { |
458 | if ( $this->fetchResult && $this->fetchResult->isOK() ) { |
459 | /** @var RevisionRecord $rev */ |
460 | $rev = $this->fetchResult->getValue(); |
461 | return $rev->getId(); |
462 | } else { |
463 | return $this->mPage->getLatest(); |
464 | } |
465 | } |
466 | |
467 | /** |
468 | * This is the default action of the index.php entry point: just view the |
469 | * page of the given title. |
470 | */ |
471 | public function view() { |
472 | $context = $this->getContext(); |
473 | $useFileCache = $context->getConfig()->get( MainConfigNames::UseFileCache ); |
474 | |
475 | # Get variables from query string |
476 | # As side effect this will load the revision and update the title |
477 | # in a revision ID is passed in the request, so this should remain |
478 | # the first call of this method even if $oldid is used way below. |
479 | $oldid = $this->getOldID(); |
480 | |
481 | $authority = $context->getAuthority(); |
482 | # Another check in case getOldID() is altering the title |
483 | $permissionStatus = PermissionStatus::newEmpty(); |
484 | if ( !$authority |
485 | ->authorizeRead( 'read', $this->getTitle(), $permissionStatus ) |
486 | ) { |
487 | wfDebug( __METHOD__ . ": denied on secondary read check" ); |
488 | throw new PermissionsError( 'read', $permissionStatus ); |
489 | } |
490 | |
491 | $outputPage = $context->getOutput(); |
492 | # getOldID() may as well want us to redirect somewhere else |
493 | if ( $this->mRedirectUrl ) { |
494 | $outputPage->redirect( $this->mRedirectUrl ); |
495 | wfDebug( __METHOD__ . ": redirecting due to oldid" ); |
496 | |
497 | return; |
498 | } |
499 | |
500 | # If we got diff in the query, we want to see a diff page instead of the article. |
501 | if ( $context->getRequest()->getCheck( 'diff' ) ) { |
502 | wfDebug( __METHOD__ . ": showing diff page" ); |
503 | $this->showDiffPage(); |
504 | |
505 | return; |
506 | } |
507 | |
508 | # Set page title (may be overridden from ParserOutput if title conversion is enabled or DISPLAYTITLE is used) |
509 | $outputPage->setPageTitle( Parser::formatPageTitle( |
510 | str_replace( '_', ' ', $this->getTitle()->getNsText() ), |
511 | ':', |
512 | $this->getTitle()->getText() |
513 | ) ); |
514 | |
515 | $outputPage->setArticleFlag( true ); |
516 | # Allow frames by default |
517 | $outputPage->setPreventClickjacking( false ); |
518 | |
519 | $parserOptions = $this->getParserOptions(); |
520 | |
521 | $poOptions = []; |
522 | # Allow extensions to vary parser options used for article rendering |
523 | ( new HookRunner( MediaWikiServices::getInstance()->getHookContainer() ) ) |
524 | ->onArticleParserOptions( $this, $parserOptions ); |
525 | # Render printable version, use printable version cache |
526 | if ( $outputPage->isPrintable() ) { |
527 | $parserOptions->setIsPrintable( true ); |
528 | $poOptions['enableSectionEditLinks'] = false; |
529 | $outputPage->prependHTML( |
530 | Html::warningBox( |
531 | $outputPage->msg( 'printableversion-deprecated-warning' )->escaped() |
532 | ) |
533 | ); |
534 | } elseif ( $this->viewIsRenderAction || !$this->isCurrent() || |
535 | !$authority->probablyCan( 'edit', $this->getTitle() ) |
536 | ) { |
537 | $poOptions['enableSectionEditLinks'] = false; |
538 | } |
539 | |
540 | # Try client and file cache |
541 | if ( $oldid === 0 && $this->mPage->checkTouched() ) { |
542 | # Try to stream the output from file cache |
543 | if ( $useFileCache && $this->tryFileCache() ) { |
544 | wfDebug( __METHOD__ . ": done file cache" ); |
545 | # tell wgOut that output is taken care of |
546 | $outputPage->disable(); |
547 | $this->mPage->doViewUpdates( $authority, $oldid ); |
548 | |
549 | return; |
550 | } |
551 | } |
552 | |
553 | $this->showRedirectedFromHeader(); |
554 | $this->showNamespaceHeader(); |
555 | |
556 | if ( $this->viewIsRenderAction ) { |
557 | $poOptions += [ 'absoluteURLs' => true ]; |
558 | } |
559 | $poOptions += [ 'includeDebugInfo' => true ]; |
560 | |
561 | try { |
562 | $continue = |
563 | $this->generateContentOutput( $authority, $parserOptions, $oldid, $outputPage, $poOptions ); |
564 | } catch ( BadRevisionException $e ) { |
565 | $continue = false; |
566 | $this->showViewError( wfMessage( 'badrevision' )->text() ); |
567 | } |
568 | |
569 | if ( !$continue ) { |
570 | return; |
571 | } |
572 | |
573 | # For the main page, overwrite the <title> element with the con- |
574 | # tents of 'pagetitle-view-mainpage' instead of the default (if |
575 | # that's not empty). |
576 | # This message always exists because it is in the i18n files |
577 | if ( $this->getTitle()->isMainPage() ) { |
578 | $msg = $context->msg( 'pagetitle-view-mainpage' )->inContentLanguage(); |
579 | if ( !$msg->isDisabled() ) { |
580 | $outputPage->setHTMLTitle( $msg->text() ); |
581 | } |
582 | } |
583 | |
584 | # Use adaptive TTLs for CDN so delayed/failed purges are noticed less often. |
585 | # This could use getTouched(), but that could be scary for major template edits. |
586 | $outputPage->adaptCdnTTL( $this->mPage->getTimestamp(), ExpirationAwareness::TTL_DAY ); |
587 | |
588 | $this->showViewFooter(); |
589 | $this->mPage->doViewUpdates( $authority, $oldid, $this->fetchRevisionRecord() ); |
590 | |
591 | # Load the postEdit module if the user just saved this revision |
592 | # See also EditPage::setPostEditCookie |
593 | $request = $context->getRequest(); |
594 | $cookieKey = EditPage::POST_EDIT_COOKIE_KEY_PREFIX . $this->getRevIdFetched(); |
595 | $postEdit = $request->getCookie( $cookieKey ); |
596 | if ( $postEdit ) { |
597 | # Clear the cookie. This also prevents caching of the response. |
598 | $request->response()->clearCookie( $cookieKey ); |
599 | $outputPage->addJsConfigVars( 'wgPostEdit', $postEdit ); |
600 | $outputPage->addModules( 'mediawiki.action.view.postEdit' ); // FIXME: test this |
601 | if ( $this->getContext()->getConfig()->get( 'EnableEditRecovery' ) |
602 | && $this->userOptionsLookup->getOption( $this->getContext()->getUser(), 'editrecovery' ) |
603 | ) { |
604 | $outputPage->addModules( 'mediawiki.editRecovery.postEdit' ); |
605 | } |
606 | } |
607 | } |
608 | |
609 | /** |
610 | * Determines the desired ParserOutput and passes it to $outputPage. |
611 | * |
612 | * @param Authority $performer |
613 | * @param ParserOptions $parserOptions |
614 | * @param int $oldid |
615 | * @param OutputPage $outputPage |
616 | * @param array $textOptions |
617 | * |
618 | * @return bool True if further processing like footer generation should be applied, |
619 | * false to skip further processing. |
620 | */ |
621 | private function generateContentOutput( |
622 | Authority $performer, |
623 | ParserOptions $parserOptions, |
624 | int $oldid, |
625 | OutputPage $outputPage, |
626 | array $textOptions |
627 | ): bool { |
628 | # Should the parser cache be used? |
629 | $useParserCache = true; |
630 | $pOutput = null; |
631 | $parserOutputAccess = MediaWikiServices::getInstance()->getParserOutputAccess(); |
632 | |
633 | // NOTE: $outputDone and $useParserCache may be changed by the hook |
634 | $this->getHookRunner()->onArticleViewHeader( $this, $outputDone, $useParserCache ); |
635 | if ( $outputDone ) { |
636 | if ( $outputDone instanceof ParserOutput ) { |
637 | $pOutput = $outputDone; |
638 | } |
639 | |
640 | if ( $pOutput ) { |
641 | $this->doOutputMetaData( $pOutput, $outputPage ); |
642 | } |
643 | return true; |
644 | } |
645 | |
646 | // Early abort if the page doesn't exist |
647 | if ( !$this->mPage->exists() ) { |
648 | wfDebug( __METHOD__ . ": showing missing article" ); |
649 | $this->showMissingArticle(); |
650 | $this->mPage->doViewUpdates( $performer ); |
651 | return false; // skip all further output to OutputPage |
652 | } |
653 | |
654 | // Try the latest parser cache |
655 | // NOTE: try latest-revision cache first to avoid loading revision. |
656 | if ( $useParserCache && !$oldid ) { |
657 | $pOutput = $parserOutputAccess->getCachedParserOutput( |
658 | $this->getPage(), |
659 | $parserOptions, |
660 | null, |
661 | ParserOutputAccess::OPT_NO_AUDIENCE_CHECK // we already checked |
662 | ); |
663 | |
664 | if ( $pOutput ) { |
665 | $this->doOutputFromParserCache( $pOutput, $outputPage, $textOptions ); |
666 | $this->doOutputMetaData( $pOutput, $outputPage ); |
667 | return true; |
668 | } |
669 | } |
670 | |
671 | $rev = $this->fetchRevisionRecord(); |
672 | if ( !$this->fetchResult->isOK() ) { |
673 | $this->showViewError( $this->fetchResult->getWikiText( |
674 | false, false, $this->getContext()->getLanguage() |
675 | ) ); |
676 | return true; |
677 | } |
678 | |
679 | # Are we looking at an old revision |
680 | if ( $oldid ) { |
681 | $this->setOldSubtitle( $oldid ); |
682 | |
683 | if ( !$this->showDeletedRevisionHeader() ) { |
684 | wfDebug( __METHOD__ . ": cannot view deleted revision" ); |
685 | return false; // skip all further output to OutputPage |
686 | } |
687 | |
688 | // Try the old revision parser cache |
689 | // NOTE: Repeating cache check for old revision to avoid fetching $rev |
690 | // before it's absolutely necessary. |
691 | if ( $useParserCache ) { |
692 | $pOutput = $parserOutputAccess->getCachedParserOutput( |
693 | $this->getPage(), |
694 | $parserOptions, |
695 | $rev, |
696 | ParserOutputAccess::OPT_NO_AUDIENCE_CHECK // we already checked in fetchRevisionRecord |
697 | ); |
698 | |
699 | if ( $pOutput ) { |
700 | $this->doOutputFromParserCache( $pOutput, $outputPage, $textOptions ); |
701 | $this->doOutputMetaData( $pOutput, $outputPage ); |
702 | return true; |
703 | } |
704 | } |
705 | } |
706 | |
707 | # Ensure that UI elements requiring revision ID have |
708 | # the correct version information. (This may be overwritten after creation of ParserOutput) |
709 | $outputPage->setRevisionId( $this->getRevIdFetched() ); |
710 | $outputPage->setRevisionIsCurrent( $rev->isCurrent() ); |
711 | # Preload timestamp to avoid a DB hit |
712 | $outputPage->setRevisionTimestamp( $rev->getTimestamp() ); |
713 | |
714 | # Pages containing custom CSS or JavaScript get special treatment |
715 | if ( $this->getTitle()->isSiteConfigPage() || $this->getTitle()->isUserConfigPage() ) { |
716 | $dir = $this->getContext()->getLanguage()->getDir(); |
717 | $lang = $this->getContext()->getLanguage()->getHtmlCode(); |
718 | |
719 | $outputPage->wrapWikiMsg( |
720 | "<div id='mw-clearyourcache' lang='$lang' dir='$dir' class='mw-content-$dir'>\n$1\n</div>", |
721 | 'clearyourcache' |
722 | ); |
723 | $outputPage->addModuleStyles( 'mediawiki.action.styles' ); |
724 | } elseif ( !$this->getHookRunner()->onArticleRevisionViewCustom( |
725 | $rev, |
726 | $this->getTitle(), |
727 | $oldid, |
728 | $outputPage ) |
729 | ) { |
730 | // NOTE: sync with hooks called in DifferenceEngine::renderNewRevision() |
731 | // Allow extensions do their own custom view for certain pages |
732 | $this->doOutputMetaData( $pOutput, $outputPage ); |
733 | return true; |
734 | } |
735 | |
736 | # Run the parse, protected by a pool counter |
737 | wfDebug( __METHOD__ . ": doing uncached parse" ); |
738 | |
739 | $opt = 0; |
740 | |
741 | // we already checked the cache in case 2, don't check again. |
742 | $opt |= ParserOutputAccess::OPT_NO_CHECK_CACHE; |
743 | |
744 | // we already checked in fetchRevisionRecord() |
745 | $opt |= ParserOutputAccess::OPT_NO_AUDIENCE_CHECK; |
746 | |
747 | // enable stampede protection and allow stale content |
748 | $opt |= ParserOutputAccess::OPT_FOR_ARTICLE_VIEW; |
749 | |
750 | // Attempt to trigger WikiPage::triggerOpportunisticLinksUpdate |
751 | // Ideally this should not be the responsibility of the ParserCache to control this. |
752 | // See https://phabricator.wikimedia.org/T329842#8816557 for more context. |
753 | $opt |= ParserOutputAccess::OPT_LINKS_UPDATE; |
754 | |
755 | if ( !$rev->getId() || !$useParserCache ) { |
756 | // fake revision or uncacheable options |
757 | $opt |= ParserOutputAccess::OPT_NO_CACHE; |
758 | } |
759 | |
760 | $renderStatus = $parserOutputAccess->getParserOutput( |
761 | $this->getPage(), |
762 | $parserOptions, |
763 | $rev, |
764 | $opt |
765 | ); |
766 | |
767 | // T327164: If parsoid cache warming is enabled, we want to ensure that the page |
768 | // the user is currently looking at has a cached parsoid rendering, in case they |
769 | // open visual editor. The cache entry would typically be missing if it has expired |
770 | // from the cache or it was invalidated by RefreshLinksJob. When "traditional" |
771 | // parser output has been invalidated by RefreshLinksJob, we will render it on |
772 | // the fly when a user requests the page, and thereby populate the cache again, |
773 | // per the code above. |
774 | // The code below is intended to do the same for parsoid output, but asynchronously |
775 | // in a job, so the user does not have to wait. |
776 | // Note that we get here if the traditional parser output was missing from the cache. |
777 | // We do not check if the parsoid output is present in the cache, because that check |
778 | // takes time. The assumption is that if we have traditional parser output |
779 | // cached, we probably also have parsoid output cached. |
780 | // So we leave it to ParsoidCachePrewarmJob to determine whether or not parsing is |
781 | // needed. |
782 | if ( $oldid === 0 || $oldid === $this->getPage()->getLatest() ) { |
783 | $parsoidCacheWarmingEnabled = $this->getContext()->getConfig() |
784 | ->get( MainConfigNames::ParsoidCacheConfig )['WarmParsoidParserCache']; |
785 | |
786 | if ( $parsoidCacheWarmingEnabled ) { |
787 | $parsoidJobSpec = ParsoidCachePrewarmJob::newSpec( |
788 | $rev->getId(), |
789 | $this->getPage()->toPageRecord(), |
790 | [ 'causeAction' => 'view' ] |
791 | ); |
792 | $this->jobQueueGroup->lazyPush( $parsoidJobSpec ); |
793 | } |
794 | } |
795 | |
796 | $this->doOutputFromRenderStatus( |
797 | $rev, |
798 | $renderStatus, |
799 | $outputPage, |
800 | $textOptions |
801 | ); |
802 | |
803 | if ( !$renderStatus->isOK() ) { |
804 | return true; |
805 | } |
806 | |
807 | $pOutput = $renderStatus->getValue(); |
808 | $this->doOutputMetaData( $pOutput, $outputPage ); |
809 | return true; |
810 | } |
811 | |
812 | /** |
813 | * @param ?ParserOutput $pOutput |
814 | * @param OutputPage $outputPage |
815 | */ |
816 | private function doOutputMetaData( ?ParserOutput $pOutput, OutputPage $outputPage ) { |
817 | # Adjust title for main page & pages with displaytitle |
818 | if ( $pOutput ) { |
819 | $this->adjustDisplayTitle( $pOutput ); |
820 | |
821 | // It would be nice to automatically set this during the first call |
822 | // to OutputPage::addParserOutputMetadata, but we can't because doing |
823 | // so would break non-pageview actions where OutputPage::getContLangForJS |
824 | // has different requirements. |
825 | $pageLang = $pOutput->getLanguage(); |
826 | if ( $pageLang ) { |
827 | $outputPage->setContentLangForJS( $pageLang ); |
828 | } |
829 | } |
830 | |
831 | # Check for any __NOINDEX__ tags on the page using $pOutput |
832 | $policy = $this->getRobotPolicy( 'view', $pOutput ?: null ); |
833 | $outputPage->setIndexPolicy( $policy['index'] ); |
834 | $outputPage->setFollowPolicy( $policy['follow'] ); // FIXME: test this |
835 | |
836 | $this->mParserOutput = $pOutput; |
837 | } |
838 | |
839 | /** |
840 | * @param ParserOutput $pOutput |
841 | * @param OutputPage $outputPage |
842 | * @param array $textOptions |
843 | */ |
844 | private function doOutputFromParserCache( |
845 | ParserOutput $pOutput, |
846 | OutputPage $outputPage, |
847 | array $textOptions |
848 | ) { |
849 | # Ensure that UI elements requiring revision ID have |
850 | # the correct version information. |
851 | $oldid = $pOutput->getCacheRevisionId() ?? $this->getRevIdFetched(); |
852 | $outputPage->setRevisionId( $oldid ); |
853 | $outputPage->setRevisionIsCurrent( $oldid === $this->mPage->getLatest() ); |
854 | $outputPage->addParserOutput( $pOutput, $textOptions ); |
855 | # Preload timestamp to avoid a DB hit |
856 | $cachedTimestamp = $pOutput->getRevisionTimestamp(); |
857 | if ( $cachedTimestamp !== null ) { |
858 | $outputPage->setRevisionTimestamp( $cachedTimestamp ); |
859 | $this->mPage->setTimestamp( $cachedTimestamp ); |
860 | } |
861 | } |
862 | |
863 | /** |
864 | * @param RevisionRecord $rev |
865 | * @param Status $renderStatus |
866 | * @param OutputPage $outputPage |
867 | * @param array $textOptions |
868 | */ |
869 | private function doOutputFromRenderStatus( |
870 | RevisionRecord $rev, |
871 | Status $renderStatus, |
872 | OutputPage $outputPage, |
873 | array $textOptions |
874 | ) { |
875 | $context = $this->getContext(); |
876 | if ( !$renderStatus->isOK() ) { |
877 | $this->showViewError( $renderStatus->getWikiText( |
878 | false, 'view-pool-error', $context->getLanguage() |
879 | ) ); |
880 | return; |
881 | } |
882 | |
883 | $pOutput = $renderStatus->getValue(); |
884 | |
885 | // Cache stale ParserOutput object with a short expiry |
886 | if ( $renderStatus->hasMessage( 'view-pool-dirty-output' ) ) { |
887 | $outputPage->lowerCdnMaxage( $context->getConfig()->get( MainConfigNames::CdnMaxageStale ) ); |
888 | $outputPage->setLastModified( $pOutput->getCacheTime() ); |
889 | $staleReason = $renderStatus->hasMessage( 'view-pool-contention' ) |
890 | ? $context->msg( 'view-pool-contention' )->escaped() |
891 | : $context->msg( 'view-pool-timeout' )->escaped(); |
892 | $outputPage->addHTML( "<!-- parser cache is expired, " . |
893 | "sending anyway due to $staleReason-->\n" ); |
894 | |
895 | // Ensure OutputPage knowns the id from the dirty cache, but keep the current flag (T341013) |
896 | $cachedId = $pOutput->getCacheRevisionId(); |
897 | if ( $cachedId !== null ) { |
898 | $outputPage->setRevisionId( $cachedId ); |
899 | $outputPage->setRevisionTimestamp( $pOutput->getTimestamp() ); |
900 | } |
901 | } |
902 | |
903 | $outputPage->addParserOutput( $pOutput, $textOptions ); |
904 | |
905 | if ( $this->getRevisionRedirectTarget( $rev ) ) { |
906 | $outputPage->addSubtitle( "<span id=\"redirectsub\">" . |
907 | $context->msg( 'redirectpagesub' )->parse() . "</span>" ); |
908 | } |
909 | } |
910 | |
911 | /** |
912 | * @param RevisionRecord $revision |
913 | * @return null|Title |
914 | */ |
915 | private function getRevisionRedirectTarget( RevisionRecord $revision ) { |
916 | // TODO: find a *good* place for the code that determines the redirect target for |
917 | // a given revision! |
918 | // NOTE: Use main slot content. Compare code in DerivedPageDataUpdater::revisionIsRedirect. |
919 | $content = $revision->getContent( SlotRecord::MAIN ); |
920 | return $content ? $content->getRedirectTarget() : null; |
921 | } |
922 | |
923 | /** |
924 | * Adjust title for pages with displaytitle, -{T|}- or language conversion |
925 | * @param ParserOutput $pOutput |
926 | */ |
927 | public function adjustDisplayTitle( ParserOutput $pOutput ) { |
928 | $out = $this->getContext()->getOutput(); |
929 | |
930 | # Adjust the title if it was set by displaytitle, -{T|}- or language conversion |
931 | $titleText = $pOutput->getTitleText(); |
932 | if ( strval( $titleText ) !== '' ) { |
933 | $out->setPageTitle( $titleText ); |
934 | $out->setDisplayTitle( $titleText ); |
935 | } |
936 | } |
937 | |
938 | /** |
939 | * Show a diff page according to current request variables. For use within |
940 | * Article::view() only, other callers should use the DifferenceEngine class. |
941 | */ |
942 | protected function showDiffPage() { |
943 | $context = $this->getContext(); |
944 | $outputPage = $context->getOutput(); |
945 | $outputPage->addBodyClasses( 'mw-article-diff' ); |
946 | $request = $context->getRequest(); |
947 | $diff = $request->getVal( 'diff' ); |
948 | $rcid = $request->getInt( 'rcid' ); |
949 | $purge = $request->getRawVal( 'action' ) === 'purge'; |
950 | $unhide = $request->getInt( 'unhide' ) === 1; |
951 | $oldid = $this->getOldID(); |
952 | |
953 | $rev = $this->fetchRevisionRecord(); |
954 | |
955 | if ( !$rev ) { |
956 | // T213621: $rev maybe null due to either lack of permission to view the |
957 | // revision or actually not existing. So let's try loading it from the id |
958 | $rev = $this->revisionStore->getRevisionById( $oldid ); |
959 | if ( $rev ) { |
960 | // Revision exists but $user lacks permission to diff it. |
961 | // Do nothing here. |
962 | // The $rev will later be used to create standard diff elements however. |
963 | } else { |
964 | $outputPage->setPageTitleMsg( $context->msg( 'errorpagetitle' ) ); |
965 | $msg = $context->msg( 'difference-missing-revision' ) |
966 | ->params( $oldid ) |
967 | ->numParams( 1 ) |
968 | ->parseAsBlock(); |
969 | $outputPage->addHTML( $msg ); |
970 | return; |
971 | } |
972 | } |
973 | |
974 | $services = MediaWikiServices::getInstance(); |
975 | |
976 | $contentHandler = $services |
977 | ->getContentHandlerFactory() |
978 | ->getContentHandler( |
979 | $rev->getSlot( SlotRecord::MAIN, RevisionRecord::RAW )->getModel() |
980 | ); |
981 | $de = $contentHandler->createDifferenceEngine( |
982 | $context, |
983 | $oldid, |
984 | $diff, |
985 | $rcid, |
986 | $purge, |
987 | $unhide |
988 | ); |
989 | |
990 | $diffType = $request->getVal( 'diff-type' ); |
991 | |
992 | if ( $diffType === null ) { |
993 | $diffType = $this->userOptionsLookup |
994 | ->getOption( $context->getUser(), 'diff-type' ); |
995 | } else { |
996 | $de->setExtraQueryParams( [ 'diff-type' => $diffType ] ); |
997 | } |
998 | |
999 | $de->setSlotDiffOptions( [ |
1000 | 'diff-type' => $diffType, |
1001 | 'expand-url' => $this->viewIsRenderAction, |
1002 | 'inline-toggle' => true, |
1003 | ] ); |
1004 | $de->showDiffPage( $this->isDiffOnlyView() ); |
1005 | |
1006 | // Run view updates for the newer revision being diffed (and shown |
1007 | // below the diff if not diffOnly). |
1008 | [ , $new ] = $de->mapDiffPrevNext( $oldid, $diff ); |
1009 | // New can be false, convert it to 0 - this conveniently means the latest revision |
1010 | $this->mPage->doViewUpdates( $context->getAuthority(), (int)$new ); |
1011 | |
1012 | // Add link to help page; see T321569 |
1013 | $context->getOutput()->addHelpLink( 'Help:Diff' ); |
1014 | } |
1015 | |
1016 | protected function isDiffOnlyView() { |
1017 | return $this->getContext()->getRequest()->getBool( |
1018 | 'diffonly', |
1019 | $this->userOptionsLookup->getBoolOption( $this->getContext()->getUser(), 'diffonly' ) |
1020 | ); |
1021 | } |
1022 | |
1023 | /** |
1024 | * Get the robot policy to be used for the current view |
1025 | * @param string $action The action= GET parameter |
1026 | * @param ParserOutput|null $pOutput |
1027 | * @return string[] The policy that should be set |
1028 | * @todo actions other than 'view' |
1029 | */ |
1030 | public function getRobotPolicy( $action, ParserOutput $pOutput = null ) { |
1031 | $context = $this->getContext(); |
1032 | $mainConfig = $context->getConfig(); |
1033 | $articleRobotPolicies = $mainConfig->get( MainConfigNames::ArticleRobotPolicies ); |
1034 | $namespaceRobotPolicies = $mainConfig->get( MainConfigNames::NamespaceRobotPolicies ); |
1035 | $defaultRobotPolicy = $mainConfig->get( MainConfigNames::DefaultRobotPolicy ); |
1036 | $title = $this->getTitle(); |
1037 | $ns = $title->getNamespace(); |
1038 | |
1039 | # Don't index user and user talk pages for blocked users (T13443) |
1040 | if ( $ns === NS_USER || $ns === NS_USER_TALK ) { |
1041 | $specificTarget = null; |
1042 | $vagueTarget = null; |
1043 | $titleText = $title->getText(); |
1044 | if ( IPUtils::isValid( $titleText ) ) { |
1045 | $vagueTarget = $titleText; |
1046 | } else { |
1047 | $specificTarget = $title->getRootText(); |
1048 | } |
1049 | if ( $this->blockStore->newFromTarget( $specificTarget, $vagueTarget ) instanceof DatabaseBlock ) { |
1050 | return [ |
1051 | 'index' => 'noindex', |
1052 | 'follow' => 'nofollow' |
1053 | ]; |
1054 | } |
1055 | } |
1056 | |
1057 | if ( $this->mPage->getId() === 0 || $this->getOldID() ) { |
1058 | # Non-articles (special pages etc), and old revisions |
1059 | return [ |
1060 | 'index' => 'noindex', |
1061 | 'follow' => 'nofollow' |
1062 | ]; |
1063 | } elseif ( $context->getOutput()->isPrintable() ) { |
1064 | # Discourage indexing of printable versions, but encourage following |
1065 | return [ |
1066 | 'index' => 'noindex', |
1067 | 'follow' => 'follow' |
1068 | ]; |
1069 | } elseif ( $context->getRequest()->getInt( 'curid' ) ) { |
1070 | # For ?curid=x urls, disallow indexing |
1071 | return [ |
1072 | 'index' => 'noindex', |
1073 | 'follow' => 'follow' |
1074 | ]; |
1075 | } |
1076 | |
1077 | # Otherwise, construct the policy based on the various config variables. |
1078 | $policy = self::formatRobotPolicy( $defaultRobotPolicy ); |
1079 | |
1080 | if ( isset( $namespaceRobotPolicies[$ns] ) ) { |
1081 | # Honour customised robot policies for this namespace |
1082 | $policy = array_merge( |
1083 | $policy, |
1084 | self::formatRobotPolicy( $namespaceRobotPolicies[$ns] ) |
1085 | ); |
1086 | } |
1087 | if ( $title->canUseNoindex() && $pOutput && $pOutput->getIndexPolicy() ) { |
1088 | # __INDEX__ and __NOINDEX__ magic words, if allowed. Incorporates |
1089 | # a final check that we have really got the parser output. |
1090 | $policy = array_merge( |
1091 | $policy, |
1092 | [ 'index' => $pOutput->getIndexPolicy() ] |
1093 | ); |
1094 | } |
1095 | |
1096 | if ( isset( $articleRobotPolicies[$title->getPrefixedText()] ) ) { |
1097 | # (T16900) site config can override user-defined __INDEX__ or __NOINDEX__ |
1098 | $policy = array_merge( |
1099 | $policy, |
1100 | self::formatRobotPolicy( $articleRobotPolicies[$title->getPrefixedText()] ) |
1101 | ); |
1102 | } |
1103 | |
1104 | return $policy; |
1105 | } |
1106 | |
1107 | /** |
1108 | * Converts a String robot policy into an associative array, to allow |
1109 | * merging of several policies using array_merge(). |
1110 | * @param array|string $policy Returns empty array on null/false/'', transparent |
1111 | * to already-converted arrays, converts string. |
1112 | * @return array 'index' => \<indexpolicy\>, 'follow' => \<followpolicy\> |
1113 | */ |
1114 | public static function formatRobotPolicy( $policy ) { |
1115 | if ( is_array( $policy ) ) { |
1116 | return $policy; |
1117 | } elseif ( !$policy ) { |
1118 | return []; |
1119 | } |
1120 | |
1121 | $arr = []; |
1122 | foreach ( explode( ',', $policy ) as $var ) { |
1123 | $var = trim( $var ); |
1124 | if ( $var === 'index' || $var === 'noindex' ) { |
1125 | $arr['index'] = $var; |
1126 | } elseif ( $var === 'follow' || $var === 'nofollow' ) { |
1127 | $arr['follow'] = $var; |
1128 | } |
1129 | } |
1130 | |
1131 | return $arr; |
1132 | } |
1133 | |
1134 | /** |
1135 | * If this request is a redirect view, send "redirected from" subtitle to |
1136 | * the output. Returns true if the header was needed, false if this is not |
1137 | * a redirect view. Handles both local and remote redirects. |
1138 | * |
1139 | * @return bool |
1140 | */ |
1141 | public function showRedirectedFromHeader() { |
1142 | $context = $this->getContext(); |
1143 | $redirectSources = $context->getConfig()->get( MainConfigNames::RedirectSources ); |
1144 | $outputPage = $context->getOutput(); |
1145 | $request = $context->getRequest(); |
1146 | $rdfrom = $request->getVal( 'rdfrom' ); |
1147 | |
1148 | // Construct a URL for the current page view, but with the target title |
1149 | $query = $request->getValues(); |
1150 | unset( $query['rdfrom'] ); |
1151 | unset( $query['title'] ); |
1152 | if ( $this->getTitle()->isRedirect() ) { |
1153 | // Prevent double redirects |
1154 | $query['redirect'] = 'no'; |
1155 | } |
1156 | $redirectTargetUrl = $this->getTitle()->getLinkURL( $query ); |
1157 | |
1158 | if ( isset( $this->mRedirectedFrom ) ) { |
1159 | // This is an internally redirected page view. |
1160 | // We'll need a backlink to the source page for navigation. |
1161 | if ( $this->getHookRunner()->onArticleViewRedirect( $this ) ) { |
1162 | $redir = $this->linkRenderer->makeKnownLink( |
1163 | $this->mRedirectedFrom, |
1164 | null, |
1165 | [], |
1166 | [ 'redirect' => 'no' ] |
1167 | ); |
1168 | |
1169 | $outputPage->addSubtitle( "<span class=\"mw-redirectedfrom\">" . |
1170 | $context->msg( 'redirectedfrom' )->rawParams( $redir )->parse() |
1171 | . "</span>" ); |
1172 | |
1173 | // Add the script to update the displayed URL and |
1174 | // set the fragment if one was specified in the redirect |
1175 | $outputPage->addJsConfigVars( [ |
1176 | 'wgInternalRedirectTargetUrl' => $redirectTargetUrl, |
1177 | ] ); |
1178 | $outputPage->addModules( 'mediawiki.action.view.redirect' ); |
1179 | |
1180 | // Add a <link rel="canonical"> tag |
1181 | $outputPage->setCanonicalUrl( $this->getTitle()->getCanonicalURL() ); |
1182 | |
1183 | // Tell the output object that the user arrived at this article through a redirect |
1184 | $outputPage->setRedirectedFrom( $this->mRedirectedFrom ); |
1185 | |
1186 | return true; |
1187 | } |
1188 | } elseif ( $rdfrom ) { |
1189 | // This is an externally redirected view, from some other wiki. |
1190 | // If it was reported from a trusted site, supply a backlink. |
1191 | if ( $redirectSources && preg_match( $redirectSources, $rdfrom ) ) { |
1192 | $redir = Linker::makeExternalLink( $rdfrom, $rdfrom ); |
1193 | $outputPage->addSubtitle( "<span class=\"mw-redirectedfrom\">" . |
1194 | $context->msg( 'redirectedfrom' )->rawParams( $redir )->parse() |
1195 | . "</span>" ); |
1196 | |
1197 | // Add the script to update the displayed URL |
1198 | $outputPage->addJsConfigVars( [ |
1199 | 'wgInternalRedirectTargetUrl' => $redirectTargetUrl, |
1200 | ] ); |
1201 | $outputPage->addModules( 'mediawiki.action.view.redirect' ); |
1202 | |
1203 | return true; |
1204 | } |
1205 | } |
1206 | |
1207 | return false; |
1208 | } |
1209 | |
1210 | /** |
1211 | * Show a header specific to the namespace currently being viewed, like |
1212 | * [[MediaWiki:Talkpagetext]]. For Article::view(). |
1213 | */ |
1214 | public function showNamespaceHeader() { |
1215 | if ( $this->getTitle()->isTalkPage() && !$this->getContext()->msg( 'talkpageheader' )->isDisabled() ) { |
1216 | $this->getContext()->getOutput()->wrapWikiMsg( |
1217 | "<div class=\"mw-talkpageheader\">\n$1\n</div>", |
1218 | [ 'talkpageheader' ] |
1219 | ); |
1220 | } |
1221 | } |
1222 | |
1223 | /** |
1224 | * Show the footer section of an ordinary page view |
1225 | */ |
1226 | public function showViewFooter() { |
1227 | # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page |
1228 | if ( $this->getTitle()->getNamespace() === NS_USER_TALK |
1229 | && IPUtils::isValid( $this->getTitle()->getText() ) |
1230 | ) { |
1231 | $this->getContext()->getOutput()->addWikiMsg( 'anontalkpagetext' ); |
1232 | } |
1233 | |
1234 | // Show a footer allowing the user to patrol the shown revision or page if possible |
1235 | $patrolFooterShown = $this->showPatrolFooter(); |
1236 | |
1237 | $this->getHookRunner()->onArticleViewFooter( $this, $patrolFooterShown ); |
1238 | } |
1239 | |
1240 | /** |
1241 | * If patrol is possible, output a patrol UI box. This is called from the |
1242 | * footer section of ordinary page views. If patrol is not possible or not |
1243 | * desired, does nothing. |
1244 | * |
1245 | * Side effect: When the patrol link is build, this method will call |
1246 | * OutputPage::setPreventClickjacking(true) and load a JS module. |
1247 | * |
1248 | * @return bool |
1249 | */ |
1250 | public function showPatrolFooter() { |
1251 | $context = $this->getContext(); |
1252 | $mainConfig = $context->getConfig(); |
1253 | $useNPPatrol = $mainConfig->get( MainConfigNames::UseNPPatrol ); |
1254 | $useRCPatrol = $mainConfig->get( MainConfigNames::UseRCPatrol ); |
1255 | $useFilePatrol = $mainConfig->get( MainConfigNames::UseFilePatrol ); |
1256 | // Allow hooks to decide whether to not output this at all |
1257 | if ( !$this->getHookRunner()->onArticleShowPatrolFooter( $this ) ) { |
1258 | return false; |
1259 | } |
1260 | |
1261 | $outputPage = $context->getOutput(); |
1262 | $user = $context->getUser(); |
1263 | $title = $this->getTitle(); |
1264 | $rc = false; |
1265 | |
1266 | if ( !$context->getAuthority()->probablyCan( 'patrol', $title ) |
1267 | || !( $useRCPatrol || $useNPPatrol |
1268 | || ( $useFilePatrol && $title->inNamespace( NS_FILE ) ) ) |
1269 | ) { |
1270 | // Patrolling is disabled or the user isn't allowed to |
1271 | return false; |
1272 | } |
1273 | |
1274 | if ( $this->mRevisionRecord |
1275 | && !RecentChange::isInRCLifespan( $this->mRevisionRecord->getTimestamp(), 21600 ) |
1276 | ) { |
1277 | // The current revision is already older than what could be in the RC table |
1278 | // 6h tolerance because the RC might not be cleaned out regularly |
1279 | return false; |
1280 | } |
1281 | |
1282 | // Check for cached results |
1283 | $cache = MediaWikiServices::getInstance()->getMainWANObjectCache(); |
1284 | $key = $cache->makeKey( 'unpatrollable-page', $title->getArticleID() ); |
1285 | if ( $cache->get( $key ) ) { |
1286 | return false; |
1287 | } |
1288 | |
1289 | $dbr = $this->dbProvider->getReplicaDatabase(); |
1290 | $oldestRevisionRow = $dbr->newSelectQueryBuilder() |
1291 | ->select( [ 'rev_id', 'rev_timestamp' ] ) |
1292 | ->from( 'revision' ) |
1293 | ->where( [ 'rev_page' => $title->getArticleID() ] ) |
1294 | ->orderBy( [ 'rev_timestamp', 'rev_id' ] ) |
1295 | ->caller( __METHOD__ )->fetchRow(); |
1296 | $oldestRevisionTimestamp = $oldestRevisionRow ? $oldestRevisionRow->rev_timestamp : false; |
1297 | |
1298 | // New page patrol: Get the timestamp of the oldest revision which |
1299 | // the revision table holds for the given page. Then we look |
1300 | // whether it's within the RC lifespan and if it is, we try |
1301 | // to get the recentchanges row belonging to that entry. |
1302 | $recentPageCreation = false; |
1303 | if ( $oldestRevisionTimestamp |
1304 | && RecentChange::isInRCLifespan( $oldestRevisionTimestamp, 21600 ) |
1305 | ) { |
1306 | // 6h tolerance because the RC might not be cleaned out regularly |
1307 | $recentPageCreation = true; |
1308 | $rc = RecentChange::newFromConds( |
1309 | [ |
1310 | 'rc_this_oldid' => intval( $oldestRevisionRow->rev_id ), |
1311 | // Avoid selecting a categorization entry |
1312 | 'rc_type' => RC_NEW, |
1313 | ], |
1314 | __METHOD__ |
1315 | ); |
1316 | if ( $rc ) { |
1317 | // Use generic patrol message for new pages |
1318 | $markPatrolledMsg = $context->msg( 'markaspatrolledtext' ); |
1319 | } |
1320 | } |
1321 | |
1322 | // File patrol: Get the timestamp of the latest upload for this page, |
1323 | // check whether it is within the RC lifespan and if it is, we try |
1324 | // to get the recentchanges row belonging to that entry |
1325 | // (with rc_type = RC_LOG, rc_log_type = upload). |
1326 | $recentFileUpload = false; |
1327 | if ( ( !$rc || $rc->getAttribute( 'rc_patrolled' ) ) && $useFilePatrol |
1328 | && $title->getNamespace() === NS_FILE ) { |
1329 | // Retrieve timestamp from the current file (lastest upload) |
1330 | $newestUploadTimestamp = $dbr->newSelectQueryBuilder() |
1331 | ->select( 'img_timestamp' ) |
1332 | ->from( 'image' ) |
1333 | ->where( [ 'img_name' => $title->getDBkey() ] ) |
1334 | ->caller( __METHOD__ )->fetchField(); |
1335 | if ( $newestUploadTimestamp |
1336 | && RecentChange::isInRCLifespan( $newestUploadTimestamp, 21600 ) |
1337 | ) { |
1338 | // 6h tolerance because the RC might not be cleaned out regularly |
1339 | $recentFileUpload = true; |
1340 | $rc = RecentChange::newFromConds( |
1341 | [ |
1342 | 'rc_type' => RC_LOG, |
1343 | 'rc_log_type' => 'upload', |
1344 | 'rc_timestamp' => $newestUploadTimestamp, |
1345 | 'rc_namespace' => NS_FILE, |
1346 | 'rc_cur_id' => $title->getArticleID() |
1347 | ], |
1348 | __METHOD__ |
1349 | ); |
1350 | if ( $rc ) { |
1351 | // Use patrol message specific to files |
1352 | $markPatrolledMsg = $context->msg( 'markaspatrolledtext-file' ); |
1353 | } |
1354 | } |
1355 | } |
1356 | |
1357 | if ( !$recentPageCreation && !$recentFileUpload ) { |
1358 | // Page creation and latest upload (for files) is too old to be in RC |
1359 | |
1360 | // We definitely can't patrol so cache the information |
1361 | // When a new file version is uploaded, the cache is cleared |
1362 | $cache->set( $key, '1' ); |
1363 | |
1364 | return false; |
1365 | } |
1366 | |
1367 | if ( !$rc ) { |
1368 | // Don't cache: This can be hit if the page gets accessed very fast after |
1369 | // its creation / latest upload or in case we have high replica DB lag. In case |
1370 | // the revision is too old, we will already return above. |
1371 | return false; |
1372 | } |
1373 | |
1374 | if ( $rc->getAttribute( 'rc_patrolled' ) ) { |
1375 | // Patrolled RC entry around |
1376 | |
1377 | // Cache the information we gathered above in case we can't patrol |
1378 | // Don't cache in case we can patrol as this could change |
1379 | $cache->set( $key, '1' ); |
1380 | |
1381 | return false; |
1382 | } |
1383 | |
1384 | if ( $rc->getPerformerIdentity()->equals( $user ) ) { |
1385 | // Don't show a patrol link for own creations/uploads. If the user could |
1386 | // patrol them, they already would be patrolled |
1387 | return false; |
1388 | } |
1389 | |
1390 | $outputPage->setPreventClickjacking( true ); |
1391 | if ( $context->getAuthority()->isAllowed( 'writeapi' ) ) { |
1392 | $outputPage->addModules( 'mediawiki.misc-authed-curate' ); |
1393 | } |
1394 | |
1395 | $link = $this->linkRenderer->makeKnownLink( |
1396 | $title, |
1397 | // @phan-suppress-next-line PhanPossiblyUndeclaredVariable $markPatrolledMsg is always set when $rc is set |
1398 | $markPatrolledMsg->text(), |
1399 | [], |
1400 | [ |
1401 | 'action' => 'markpatrolled', |
1402 | 'rcid' => $rc->getAttribute( 'rc_id' ), |
1403 | ] |
1404 | ); |
1405 | |
1406 | $outputPage->addModuleStyles( 'mediawiki.action.styles' ); |
1407 | $outputPage->addHTML( |
1408 | "<div class='patrollink' data-mw='interface'>" . |
1409 | $context->msg( 'markaspatrolledlink' )->rawParams( $link )->escaped() . |
1410 | '</div>' |
1411 | ); |
1412 | |
1413 | return true; |
1414 | } |
1415 | |
1416 | /** |
1417 | * Purge the cache used to check if it is worth showing the patrol footer |
1418 | * For example, it is done during re-uploads when file patrol is used. |
1419 | * @param int $articleID ID of the article to purge |
1420 | * @since 1.27 |
1421 | */ |
1422 | public static function purgePatrolFooterCache( $articleID ) { |
1423 | $cache = MediaWikiServices::getInstance()->getMainWANObjectCache(); |
1424 | $cache->delete( $cache->makeKey( 'unpatrollable-page', $articleID ) ); |
1425 | } |
1426 | |
1427 | /** |
1428 | * Show the error text for a missing article. For articles in the MediaWiki |
1429 | * namespace, show the default message text. To be called from Article::view(). |
1430 | */ |
1431 | public function showMissingArticle() { |
1432 | $context = $this->getContext(); |
1433 | $send404Code = $context->getConfig()->get( MainConfigNames::Send404Code ); |
1434 | |
1435 | $outputPage = $context->getOutput(); |
1436 | // Whether the page is a root user page of an existing user (but not a subpage) |
1437 | $validUserPage = false; |
1438 | |
1439 | $title = $this->getTitle(); |
1440 | |
1441 | $services = MediaWikiServices::getInstance(); |
1442 | |
1443 | $contextUser = $context->getUser(); |
1444 | |
1445 | # Show info in user (talk) namespace. Does the user exist? Is he blocked? |
1446 | if ( $title->getNamespace() === NS_USER |
1447 | || $title->getNamespace() === NS_USER_TALK |
1448 | ) { |
1449 | $rootPart = $title->getRootText(); |
1450 | $user = User::newFromName( $rootPart, false /* allow IP users */ ); |
1451 | $ip = $this->userNameUtils->isIP( $rootPart ); |
1452 | $block = $this->blockStore->newFromTarget( $user, $user ); |
1453 | |
1454 | if ( $user && $user->isRegistered() && $user->isHidden() && |
1455 | !$context->getAuthority()->isAllowed( 'hideuser' ) |
1456 | ) { |
1457 | // T120883 if the user is hidden and the viewer cannot see hidden |
1458 | // users, pretend like it does not exist at all. |
1459 | $user = false; |
1460 | } |
1461 | |
1462 | if ( !( $user && $user->isRegistered() ) && !$ip ) { |
1463 | // User does not exist |
1464 | $outputPage->addHTML( Html::warningBox( |
1465 | $context->msg( 'userpage-userdoesnotexist-view', wfEscapeWikiText( $rootPart ) )->parse(), |
1466 | 'mw-userpage-userdoesnotexist' |
1467 | ) ); |
1468 | |
1469 | // Show renameuser log extract |
1470 | LogEventsList::showLogExtract( |
1471 | $outputPage, |
1472 | 'renameuser', |
1473 | Title::makeTitleSafe( NS_USER, $rootPart ), |
1474 | '', |
1475 | [ |
1476 | 'lim' => 10, |
1477 | 'showIfEmpty' => false, |
1478 | 'msgKey' => [ 'renameuser-renamed-notice', $title->getBaseText() ] |
1479 | ] |
1480 | ); |
1481 | } elseif ( |
1482 | $block !== null && |
1483 | $block->getType() != DatabaseBlock::TYPE_AUTO && |
1484 | ( |
1485 | $block->isSitewide() || |
1486 | $services->getPermissionManager()->isBlockedFrom( $user, $title, true ) |
1487 | ) |
1488 | ) { |
1489 | // Show log extract if the user is sitewide blocked or is partially |
1490 | // blocked and not allowed to edit their user page or user talk page |
1491 | LogEventsList::showLogExtract( |
1492 | $outputPage, |
1493 | 'block', |
1494 | $services->getNamespaceInfo()->getCanonicalName( NS_USER ) . ':' . |
1495 | $block->getTargetName(), |
1496 | '', |
1497 | [ |
1498 | 'lim' => 1, |
1499 | 'showIfEmpty' => false, |
1500 | 'msgKey' => [ |
1501 | 'blocked-notice-logextract', |
1502 | $user->getName() # Support GENDER in notice |
1503 | ] |
1504 | ] |
1505 | ); |
1506 | $validUserPage = !$title->isSubpage(); |
1507 | } else { |
1508 | $validUserPage = !$title->isSubpage(); |
1509 | } |
1510 | } |
1511 | |
1512 | $this->getHookRunner()->onShowMissingArticle( $this ); |
1513 | |
1514 | # Show delete and move logs if there were any such events. |
1515 | # The logging query can DOS the site when bots/crawlers cause 404 floods, |
1516 | # so be careful showing this. 404 pages must be cheap as they are hard to cache. |
1517 | $dbCache = MediaWikiServices::getInstance()->getMainObjectStash(); |
1518 | $key = $dbCache->makeKey( 'page-recent-delete', md5( $title->getPrefixedText() ) ); |
1519 | $isRegistered = $contextUser->isRegistered(); |
1520 | $sessionExists = $context->getRequest()->getSession()->isPersistent(); |
1521 | |
1522 | if ( $isRegistered || $dbCache->get( $key ) || $sessionExists ) { |
1523 | $logTypes = [ 'delete', 'move', 'protect' ]; |
1524 | |
1525 | $dbr = $this->dbProvider->getReplicaDatabase(); |
1526 | |
1527 | $conds = [ $dbr->expr( 'log_action', '!=', 'revision' ) ]; |
1528 | // Give extensions a chance to hide their (unrelated) log entries |
1529 | $this->getHookRunner()->onArticle__MissingArticleConditions( $conds, $logTypes ); |
1530 | LogEventsList::showLogExtract( |
1531 | $outputPage, |
1532 | $logTypes, |
1533 | $title, |
1534 | '', |
1535 | [ |
1536 | 'lim' => 10, |
1537 | 'conds' => $conds, |
1538 | 'showIfEmpty' => false, |
1539 | 'msgKey' => [ $isRegistered || $sessionExists |
1540 | ? 'moveddeleted-notice' |
1541 | : 'moveddeleted-notice-recent' |
1542 | ] |
1543 | ] |
1544 | ); |
1545 | } |
1546 | |
1547 | if ( !$this->mPage->hasViewableContent() && $send404Code && !$validUserPage ) { |
1548 | // If there's no backing content, send a 404 Not Found |
1549 | // for better machine handling of broken links. |
1550 | $context->getRequest()->response()->statusHeader( 404 ); |
1551 | } |
1552 | |
1553 | // Also apply the robot policy for nonexisting pages (even if a 404 was used) |
1554 | $policy = $this->getRobotPolicy( 'view' ); |
1555 | $outputPage->setIndexPolicy( $policy['index'] ); |
1556 | $outputPage->setFollowPolicy( $policy['follow'] ); |
1557 | |
1558 | $hookResult = $this->getHookRunner()->onBeforeDisplayNoArticleText( $this ); |
1559 | |
1560 | if ( !$hookResult ) { |
1561 | return; |
1562 | } |
1563 | |
1564 | # Show error message |
1565 | $oldid = $this->getOldID(); |
1566 | if ( !$oldid && $title->getNamespace() === NS_MEDIAWIKI && $title->hasSourceText() ) { |
1567 | $text = $this->getTitle()->getDefaultMessageText() ?? ''; |
1568 | $outputPage->addWikiTextAsContent( $text ); |
1569 | } else { |
1570 | if ( $oldid ) { |
1571 | $text = $this->getMissingRevisionMsg( $oldid )->plain(); |
1572 | } elseif ( $context->getAuthority()->probablyCan( 'edit', $title ) ) { |
1573 | $message = $isRegistered ? 'noarticletext' : 'noarticletextanon'; |
1574 | $text = $context->msg( $message )->plain(); |
1575 | } else { |
1576 | $text = $context->msg( 'noarticletext-nopermission' )->plain(); |
1577 | } |
1578 | |
1579 | $dir = $context->getLanguage()->getDir(); |
1580 | $lang = $context->getLanguage()->getHtmlCode(); |
1581 | $outputPage->addWikiTextAsInterface( Xml::openElement( 'div', [ |
1582 | 'class' => "noarticletext mw-content-$dir", |
1583 | 'dir' => $dir, |
1584 | 'lang' => $lang, |
1585 | ] ) . "\n$text\n</div>" ); |
1586 | } |
1587 | } |
1588 | |
1589 | /** |
1590 | * Show error text for errors generated in Article::view(). |
1591 | * @param string $errortext localized wikitext error message |
1592 | */ |
1593 | private function showViewError( string $errortext ) { |
1594 | $outputPage = $this->getContext()->getOutput(); |
1595 | $outputPage->setPageTitleMsg( $this->getContext()->msg( 'errorpagetitle' ) ); |
1596 | $outputPage->disableClientCache(); |
1597 | $outputPage->setRobotPolicy( 'noindex,nofollow' ); |
1598 | $outputPage->clearHTML(); |
1599 | $outputPage->addHTML( Html::errorBox( $outputPage->parseAsContent( $errortext ) ) ); |
1600 | } |
1601 | |
1602 | /** |
1603 | * If the revision requested for view is deleted, check permissions. |
1604 | * Send either an error message or a warning header to the output. |
1605 | * |
1606 | * @return bool True if the view is allowed, false if not. |
1607 | */ |
1608 | public function showDeletedRevisionHeader() { |
1609 | if ( !$this->mRevisionRecord->isDeleted( RevisionRecord::DELETED_TEXT ) ) { |
1610 | // Not deleted |
1611 | return true; |
1612 | } |
1613 | $outputPage = $this->getContext()->getOutput(); |
1614 | // Used in wikilinks, should not contain whitespaces |
1615 | $titleText = $this->getTitle()->getPrefixedDBkey(); |
1616 | // If the user is not allowed to see it... |
1617 | if ( !$this->mRevisionRecord->userCan( |
1618 | RevisionRecord::DELETED_TEXT, |
1619 | $this->getContext()->getAuthority() |
1620 | ) ) { |
1621 | $outputPage->addHTML( |
1622 | Html::warningBox( |
1623 | $outputPage->msg( 'rev-deleted-text-permission', $titleText )->parse(), |
1624 | 'plainlinks' |
1625 | ) |
1626 | ); |
1627 | |
1628 | return false; |
1629 | // If the user needs to confirm that they want to see it... |
1630 | } elseif ( $this->getContext()->getRequest()->getInt( 'unhide' ) !== 1 ) { |
1631 | # Give explanation and add a link to view the revision... |
1632 | $oldid = intval( $this->getOldID() ); |
1633 | $link = $this->getTitle()->getFullURL( "oldid={$oldid}&unhide=1" ); |
1634 | $msg = $this->mRevisionRecord->isDeleted( RevisionRecord::DELETED_RESTRICTED ) ? |
1635 | 'rev-suppressed-text-unhide' : 'rev-deleted-text-unhide'; |
1636 | $outputPage->addHTML( |
1637 | Html::warningBox( |
1638 | $outputPage->msg( $msg, $link )->parse(), |
1639 | 'plainlinks' |
1640 | ) |
1641 | ); |
1642 | |
1643 | return false; |
1644 | // We are allowed to see... |
1645 | } else { |
1646 | $msg = $this->mRevisionRecord->isDeleted( RevisionRecord::DELETED_RESTRICTED ) |
1647 | ? [ 'rev-suppressed-text-view', $titleText ] |
1648 | : [ 'rev-deleted-text-view', $titleText ]; |
1649 | $outputPage->addHTML( |
1650 | Html::warningBox( |
1651 | $outputPage->msg( $msg[0], $msg[1] )->parse(), |
1652 | 'plainlinks' |
1653 | ) |
1654 | ); |
1655 | |
1656 | return true; |
1657 | } |
1658 | } |
1659 | |
1660 | /** |
1661 | * Generate the navigation links when browsing through an article revisions |
1662 | * It shows the information as: |
1663 | * Revision as of \<date\>; view current revision |
1664 | * \<- Previous version | Next Version -\> |
1665 | * |
1666 | * @param int $oldid Revision ID of this article revision |
1667 | */ |
1668 | public function setOldSubtitle( $oldid = 0 ) { |
1669 | if ( !$this->getHookRunner()->onDisplayOldSubtitle( $this, $oldid ) ) { |
1670 | return; |
1671 | } |
1672 | |
1673 | $context = $this->getContext(); |
1674 | $unhide = $context->getRequest()->getInt( 'unhide' ) === 1; |
1675 | |
1676 | # Cascade unhide param in links for easy deletion browsing |
1677 | $extraParams = []; |
1678 | if ( $unhide ) { |
1679 | $extraParams['unhide'] = 1; |
1680 | } |
1681 | |
1682 | if ( $this->mRevisionRecord && $this->mRevisionRecord->getId() === $oldid ) { |
1683 | $revisionRecord = $this->mRevisionRecord; |
1684 | } else { |
1685 | $revisionRecord = $this->revisionStore->getRevisionById( $oldid ); |
1686 | } |
1687 | if ( !$revisionRecord ) { |
1688 | throw new LogicException( 'There should be a revision record at this point.' ); |
1689 | } |
1690 | |
1691 | $timestamp = $revisionRecord->getTimestamp(); |
1692 | |
1693 | $current = ( $oldid == $this->mPage->getLatest() ); |
1694 | $language = $context->getLanguage(); |
1695 | $user = $context->getUser(); |
1696 | |
1697 | $td = $language->userTimeAndDate( $timestamp, $user ); |
1698 | $tddate = $language->userDate( $timestamp, $user ); |
1699 | $tdtime = $language->userTime( $timestamp, $user ); |
1700 | |
1701 | # Show user links if allowed to see them. If hidden, then show them only if requested... |
1702 | $userlinks = Linker::revUserTools( $revisionRecord, !$unhide ); |
1703 | |
1704 | $infomsg = $current && !$context->msg( 'revision-info-current' )->isDisabled() |
1705 | ? 'revision-info-current' |
1706 | : 'revision-info'; |
1707 | |
1708 | $outputPage = $context->getOutput(); |
1709 | $outputPage->addModuleStyles( [ |
1710 | 'mediawiki.action.styles', |
1711 | 'mediawiki.interface.helpers.styles' |
1712 | ] ); |
1713 | |
1714 | $revisionUser = $revisionRecord->getUser(); |
1715 | $revisionInfo = "<div id=\"mw-{$infomsg}\">" . |
1716 | $context->msg( $infomsg, $td ) |
1717 | ->rawParams( $userlinks ) |
1718 | ->params( |
1719 | $revisionRecord->getId(), |
1720 | $tddate, |
1721 | $tdtime, |
1722 | $revisionUser ? $revisionUser->getName() : '' |
1723 | ) |
1724 | ->rawParams( $this->commentFormatter->formatRevision( |
1725 | $revisionRecord, |
1726 | $user, |
1727 | true, |
1728 | !$unhide |
1729 | ) ) |
1730 | ->parse() . |
1731 | "</div>"; |
1732 | |
1733 | $lnk = $current |
1734 | ? $context->msg( 'currentrevisionlink' )->escaped() |
1735 | : $this->linkRenderer->makeKnownLink( |
1736 | $this->getTitle(), |
1737 | $context->msg( 'currentrevisionlink' )->text(), |
1738 | [], |
1739 | $extraParams |
1740 | ); |
1741 | $curdiff = $current |
1742 | ? $context->msg( 'diff' )->escaped() |
1743 | : $this->linkRenderer->makeKnownLink( |
1744 | $this->getTitle(), |
1745 | $context->msg( 'diff' )->text(), |
1746 | [], |
1747 | [ |
1748 | 'diff' => 'cur', |
1749 | 'oldid' => $oldid |
1750 | ] + $extraParams |
1751 | ); |
1752 | $prevExist = (bool)$this->revisionStore->getPreviousRevision( $revisionRecord ); |
1753 | $prevlink = $prevExist |
1754 | ? $this->linkRenderer->makeKnownLink( |
1755 | $this->getTitle(), |
1756 | $context->msg( 'previousrevision' )->text(), |
1757 | [], |
1758 | [ |
1759 | 'direction' => 'prev', |
1760 | 'oldid' => $oldid |
1761 | ] + $extraParams |
1762 | ) |
1763 | : $context->msg( 'previousrevision' )->escaped(); |
1764 | $prevdiff = $prevExist |
1765 | ? $this->linkRenderer->makeKnownLink( |
1766 | $this->getTitle(), |
1767 | $context->msg( 'diff' )->text(), |
1768 | [], |
1769 | [ |
1770 | 'diff' => 'prev', |
1771 | 'oldid' => $oldid |
1772 | ] + $extraParams |
1773 | ) |
1774 | : $context->msg( 'diff' )->escaped(); |
1775 | $nextlink = $current |
1776 | ? $context->msg( 'nextrevision' )->escaped() |
1777 | : $this->linkRenderer->makeKnownLink( |
1778 | $this->getTitle(), |
1779 | $context->msg( 'nextrevision' )->text(), |
1780 | [], |
1781 | [ |
1782 | 'direction' => 'next', |
1783 | 'oldid' => $oldid |
1784 | ] + $extraParams |
1785 | ); |
1786 | $nextdiff = $current |
1787 | ? $context->msg( 'diff' )->escaped() |
1788 | : $this->linkRenderer->makeKnownLink( |
1789 | $this->getTitle(), |
1790 | $context->msg( 'diff' )->text(), |
1791 | [], |
1792 | [ |
1793 | 'diff' => 'next', |
1794 | 'oldid' => $oldid |
1795 | ] + $extraParams |
1796 | ); |
1797 | |
1798 | $cdel = Linker::getRevDeleteLink( |
1799 | $context->getAuthority(), |
1800 | $revisionRecord, |
1801 | $this->getTitle() |
1802 | ); |
1803 | if ( $cdel !== '' ) { |
1804 | $cdel .= ' '; |
1805 | } |
1806 | |
1807 | // the outer div is need for styling the revision info and nav in MobileFrontend |
1808 | $outputPage->addSubtitle( |
1809 | Html::warningBox( |
1810 | $revisionInfo . |
1811 | "<div id=\"mw-revision-nav\">" . $cdel . |
1812 | $context->msg( 'revision-nav' )->rawParams( |
1813 | $prevdiff, $prevlink, $lnk, $curdiff, $nextlink, $nextdiff |
1814 | )->escaped() . "</div>", |
1815 | 'mw-revision' |
1816 | ) |
1817 | ); |
1818 | } |
1819 | |
1820 | /** |
1821 | * Return the HTML for the top of a redirect page |
1822 | * |
1823 | * Chances are you should just be using the ParserOutput from |
1824 | * WikitextContent::getParserOutput instead of calling this for redirects. |
1825 | * |
1826 | * @since 1.23 |
1827 | * @param Language $lang |
1828 | * @param Title $target Destination to redirect |
1829 | * @param bool $forceKnown Should the image be shown as a bluelink regardless of existence? |
1830 | * @return string Containing HTML with redirect link |
1831 | * @deprecated since 1.41, use LinkRenderer::makeRedirectHeader() instead |
1832 | */ |
1833 | public static function getRedirectHeaderHtml( Language $lang, Title $target, $forceKnown = false ) { |
1834 | wfDeprecated( __METHOD__, '1.41' ); |
1835 | $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer(); |
1836 | return $linkRenderer->makeRedirectHeader( $lang, $target, $forceKnown ); |
1837 | } |
1838 | |
1839 | /** |
1840 | * Adds help link with an icon via page indicators. |
1841 | * Link target can be overridden by a local message containing a wikilink: |
1842 | * the message key is: 'namespace-' + namespace number + '-helppage'. |
1843 | * @param string $to Target MediaWiki.org page title or encoded URL. |
1844 | * @param bool $overrideBaseUrl Whether $url is a full URL, to avoid MW.o. |
1845 | * @since 1.25 |
1846 | */ |
1847 | public function addHelpLink( $to, $overrideBaseUrl = false ) { |
1848 | $out = $this->getContext()->getOutput(); |
1849 | $msg = $out->msg( 'namespace-' . $this->getTitle()->getNamespace() . '-helppage' ); |
1850 | |
1851 | if ( !$msg->isDisabled() ) { |
1852 | $title = Title::newFromText( $msg->plain() ); |
1853 | if ( $title instanceof Title ) { |
1854 | $out->addHelpLink( $title->getLocalURL(), true ); |
1855 | } |
1856 | } else { |
1857 | $out->addHelpLink( $to, $overrideBaseUrl ); |
1858 | } |
1859 | } |
1860 | |
1861 | /** |
1862 | * Handle action=render |
1863 | */ |
1864 | public function render() { |
1865 | $this->getContext()->getRequest()->response()->header( 'X-Robots-Tag: noindex' ); |
1866 | $this->getContext()->getOutput()->setArticleBodyOnly( true ); |
1867 | // We later set 'enableSectionEditLinks=false' based on this; also used by ImagePage |
1868 | $this->viewIsRenderAction = true; |
1869 | $this->view(); |
1870 | } |
1871 | |
1872 | /** |
1873 | * action=protect handler |
1874 | */ |
1875 | public function protect() { |
1876 | $form = new ProtectionForm( $this ); |
1877 | $form->execute(); |
1878 | } |
1879 | |
1880 | /** |
1881 | * action=unprotect handler (alias) |
1882 | */ |
1883 | public function unprotect() { |
1884 | $this->protect(); |
1885 | } |
1886 | |
1887 | /* Caching functions */ |
1888 | |
1889 | /** |
1890 | * checkLastModified returns true if it has taken care of all |
1891 | * output to the client that is necessary for this request. |
1892 | * (that is, it has sent a cached version of the page) |
1893 | * |
1894 | * @return bool True if cached version send, false otherwise |
1895 | */ |
1896 | protected function tryFileCache() { |
1897 | static $called = false; |
1898 | |
1899 | if ( $called ) { |
1900 | wfDebug( "Article::tryFileCache(): called twice!?" ); |
1901 | return false; |
1902 | } |
1903 | |
1904 | $called = true; |
1905 | if ( $this->isFileCacheable() ) { |
1906 | $cache = new HTMLFileCache( $this->getTitle(), 'view' ); |
1907 | if ( $cache->isCacheGood( $this->mPage->getTouched() ) ) { |
1908 | wfDebug( "Article::tryFileCache(): about to load file" ); |
1909 | $cache->loadFromFileCache( $this->getContext() ); |
1910 | return true; |
1911 | } else { |
1912 | wfDebug( "Article::tryFileCache(): starting buffer" ); |
1913 | ob_start( [ &$cache, 'saveToFileCache' ] ); |
1914 | } |
1915 | } else { |
1916 | wfDebug( "Article::tryFileCache(): not cacheable" ); |
1917 | } |
1918 | |
1919 | return false; |
1920 | } |
1921 | |
1922 | /** |
1923 | * Check if the page can be cached |
1924 | * @param int $mode One of the HTMLFileCache::MODE_* constants (since 1.28) |
1925 | * @return bool |
1926 | */ |
1927 | public function isFileCacheable( $mode = HTMLFileCache::MODE_NORMAL ) { |
1928 | $cacheable = false; |
1929 | |
1930 | if ( HTMLFileCache::useFileCache( $this->getContext(), $mode ) ) { |
1931 | $cacheable = $this->mPage->getId() |
1932 | && !$this->mRedirectedFrom && !$this->getTitle()->isRedirect(); |
1933 | // Extension may have reason to disable file caching on some pages. |
1934 | if ( $cacheable ) { |
1935 | $cacheable = $this->getHookRunner()->onIsFileCacheable( $this ) ?? false; |
1936 | } |
1937 | } |
1938 | |
1939 | return $cacheable; |
1940 | } |
1941 | |
1942 | /** |
1943 | * Lightweight method to get the parser output for a page, checking the parser cache |
1944 | * and so on. Doesn't consider most of the stuff that Article::view() is forced to |
1945 | * consider, so it's not appropriate to use there. |
1946 | * |
1947 | * @since 1.16 (r52326) for LiquidThreads |
1948 | * |
1949 | * @param int|null $oldid Revision ID or null |
1950 | * @param UserIdentity|null $user The relevant user |
1951 | * @return ParserOutput|false ParserOutput or false if the given revision ID is not found |
1952 | */ |
1953 | public function getParserOutput( $oldid = null, UserIdentity $user = null ) { |
1954 | if ( $user === null ) { |
1955 | $parserOptions = $this->getParserOptions(); |
1956 | } else { |
1957 | $parserOptions = $this->mPage->makeParserOptions( $user ); |
1958 | $parserOptions->setRenderReason( 'page-view' ); |
1959 | } |
1960 | |
1961 | return $this->mPage->getParserOutput( $parserOptions, $oldid ); |
1962 | } |
1963 | |
1964 | /** |
1965 | * Get parser options suitable for rendering the primary article wikitext |
1966 | * @return ParserOptions |
1967 | */ |
1968 | public function getParserOptions() { |
1969 | $parserOptions = $this->mPage->makeParserOptions( $this->getContext() ); |
1970 | $parserOptions->setRenderReason( 'page-view' ); |
1971 | return $parserOptions; |
1972 | } |
1973 | |
1974 | /** |
1975 | * Sets the context this Article is executed in |
1976 | * |
1977 | * @param IContextSource $context |
1978 | * @since 1.18 |
1979 | */ |
1980 | public function setContext( $context ) { |
1981 | $this->mContext = $context; |
1982 | } |
1983 | |
1984 | /** |
1985 | * Gets the context this Article is executed in |
1986 | * |
1987 | * @return IContextSource |
1988 | * @since 1.18 |
1989 | */ |
1990 | public function getContext(): IContextSource { |
1991 | if ( $this->mContext instanceof IContextSource ) { |
1992 | return $this->mContext; |
1993 | } else { |
1994 | wfDebug( __METHOD__ . " called and \$mContext is null. " . |
1995 | "Return RequestContext::getMain()" ); |
1996 | return RequestContext::getMain(); |
1997 | } |
1998 | } |
1999 | |
2000 | /** |
2001 | * Call to WikiPage function for backwards compatibility. |
2002 | * @see ContentHandler::getActionOverrides |
2003 | * @return array |
2004 | */ |
2005 | public function getActionOverrides() { |
2006 | return $this->mPage->getActionOverrides(); |
2007 | } |
2008 | |
2009 | private function getMissingRevisionMsg( int $oldid ): Message { |
2010 | // T251066: Try loading the revision from the archive table. |
2011 | // Show link to view it if it exists and the user has permission to view it. |
2012 | // (Ignore the given title, if any; look it up from the revision instead.) |
2013 | $context = $this->getContext(); |
2014 | $revRecord = $this->archivedRevisionLookup->getArchivedRevisionRecord( null, $oldid ); |
2015 | if ( |
2016 | $revRecord && |
2017 | $revRecord->userCan( |
2018 | RevisionRecord::DELETED_TEXT, |
2019 | $context->getAuthority() |
2020 | ) && |
2021 | $context->getAuthority()->isAllowedAny( 'deletedtext', 'undelete' ) |
2022 | ) { |
2023 | return $context->msg( |
2024 | 'missing-revision-permission', |
2025 | $oldid, |
2026 | $revRecord->getTimestamp(), |
2027 | Title::newFromPageIdentity( $revRecord->getPage() )->getPrefixedDBkey() |
2028 | ); |
2029 | } |
2030 | return $context->msg( 'missing-revision', $oldid ); |
2031 | } |
2032 | } |