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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\Language\Language; |
| 31 | use MediaWiki\Linker\Linker; |
| 32 | use MediaWiki\Linker\LinkRenderer; |
| 33 | use MediaWiki\MainConfigNames; |
| 34 | use MediaWiki\MediaWikiServices; |
| 35 | use MediaWiki\Message\Message; |
| 36 | use MediaWiki\Output\OutputPage; |
| 37 | use MediaWiki\Page\ParserOutputAccess; |
| 38 | use MediaWiki\Page\ProtectionForm; |
| 39 | use MediaWiki\Page\WikiPageFactory; |
| 40 | use MediaWiki\Parser\Parser; |
| 41 | use MediaWiki\Parser\ParserOptions; |
| 42 | use MediaWiki\Parser\ParserOutput; |
| 43 | use MediaWiki\Permissions\Authority; |
| 44 | use MediaWiki\Permissions\PermissionStatus; |
| 45 | use MediaWiki\Permissions\RestrictionStore; |
| 46 | use MediaWiki\Revision\ArchivedRevisionLookup; |
| 47 | use MediaWiki\Revision\BadRevisionException; |
| 48 | use MediaWiki\Revision\RevisionRecord; |
| 49 | use MediaWiki\Revision\RevisionStore; |
| 50 | use MediaWiki\Revision\SlotRecord; |
| 51 | use MediaWiki\Status\Status; |
| 52 | use MediaWiki\Title\Title; |
| 53 | use MediaWiki\User\Options\UserOptionsLookup; |
| 54 | use MediaWiki\User\UserIdentity; |
| 55 | use MediaWiki\User\UserNameUtils; |
| 56 | use MediaWiki\Xml\Xml; |
| 57 | use Wikimedia\IPUtils; |
| 58 | use Wikimedia\LightweightObjectStore\ExpirationAwareness; |
| 59 | use Wikimedia\NonSerializable\NonSerializableTrait; |
| 60 | use Wikimedia\Rdbms\IConnectionProvider; |
| 61 | |
| 62 | /** |
| 63 | * Legacy class representing an editable page and handling UI for some page actions. |
| 64 | * |
| 65 | * This has largely been superseded by WikiPage, with Action subclasses for the |
| 66 | * user interface of page actions, and service classes for their backend logic. |
| 67 | * |
| 68 | * @todo Move and refactor remaining code |
| 69 | * @todo Deprecate |
| 70 | */ |
| 71 | class Article implements Page { |
| 72 | use ProtectedHookAccessorTrait; |
| 73 | use NonSerializableTrait; |
| 74 | |
| 75 | /** |
| 76 | * @var IContextSource|null The context this Article is executed in. |
| 77 | * If null, RequestContext::getMain() is used. |
| 78 | * @deprecated since 1.35, must be private, use {@link getContext} |
| 79 | */ |
| 80 | protected $mContext; |
| 81 | |
| 82 | /** @var WikiPage The WikiPage object of this instance */ |
| 83 | protected $mPage; |
| 84 | |
| 85 | /** |
| 86 | * @var int|null The oldid of the article that was requested to be shown, |
| 87 | * 0 for the current revision. |
| 88 | */ |
| 89 | public $mOldId; |
| 90 | |
| 91 | /** @var Title|null Title from which we were redirected here, if any. */ |
| 92 | public $mRedirectedFrom = null; |
| 93 | |
| 94 | /** @var string|false URL to redirect to or false if none */ |
| 95 | public $mRedirectUrl = false; |
| 96 | |
| 97 | /** |
| 98 | * @var Status|null represents the outcome of fetchRevisionRecord(). |
| 99 | * $fetchResult->value is the RevisionRecord object, if the operation was successful. |
| 100 | */ |
| 101 | private $fetchResult = null; |
| 102 | |
| 103 | /** |
| 104 | * @var ParserOutput|null|false The ParserOutput generated for viewing the page, |
| 105 | * initialized by view(). If no ParserOutput could be generated, this is set to false. |
| 106 | * @deprecated since 1.32 |
| 107 | */ |
| 108 | public $mParserOutput = null; |
| 109 | |
| 110 | /** |
| 111 | * @var bool Whether render() was called. With the way subclasses work |
| 112 | * here, there doesn't seem to be any other way to stop calling |
| 113 | * OutputPage::enableSectionEditLinks() and still have it work as it did before. |
| 114 | */ |
| 115 | protected $viewIsRenderAction = false; |
| 116 | |
| 117 | protected LinkRenderer $linkRenderer; |
| 118 | private RevisionStore $revisionStore; |
| 119 | private UserNameUtils $userNameUtils; |
| 120 | private UserOptionsLookup $userOptionsLookup; |
| 121 | private CommentFormatter $commentFormatter; |
| 122 | private WikiPageFactory $wikiPageFactory; |
| 123 | private JobQueueGroup $jobQueueGroup; |
| 124 | private ArchivedRevisionLookup $archivedRevisionLookup; |
| 125 | protected IConnectionProvider $dbProvider; |
| 126 | protected DatabaseBlockStore $blockStore; |
| 127 | |
| 128 | protected RestrictionStore $restrictionStore; |
| 129 | |
| 130 | /** |
| 131 | * @var RevisionRecord|null Revision to be shown |
| 132 | * |
| 133 | * Initialized by getOldIDFromRequest() or fetchRevisionRecord(). While the output of |
| 134 | * Article::view is typically based on this revision, it may be replaced by extensions. |
| 135 | */ |
| 136 | private $mRevisionRecord = null; |
| 137 | |
| 138 | /** |
| 139 | * @param Title $title |
| 140 | * @param int|null $oldId Revision ID, null to fetch from request, zero for current |
| 141 | */ |
| 142 | public function __construct( Title $title, $oldId = null ) { |
| 143 | $this->mOldId = $oldId; |
| 144 | $this->mPage = $this->newPage( $title ); |
| 145 | |
| 146 | $services = MediaWikiServices::getInstance(); |
| 147 | $this->linkRenderer = $services->getLinkRenderer(); |
| 148 | $this->revisionStore = $services->getRevisionStore(); |
| 149 | $this->userNameUtils = $services->getUserNameUtils(); |
| 150 | $this->userOptionsLookup = $services->getUserOptionsLookup(); |
| 151 | $this->commentFormatter = $services->getCommentFormatter(); |
| 152 | $this->wikiPageFactory = $services->getWikiPageFactory(); |
| 153 | $this->jobQueueGroup = $services->getJobQueueGroup(); |
| 154 | $this->archivedRevisionLookup = $services->getArchivedRevisionLookup(); |
| 155 | $this->dbProvider = $services->getConnectionProvider(); |
| 156 | $this->blockStore = $services->getDatabaseBlockStore(); |
| 157 | $this->restrictionStore = $services->getRestrictionStore(); |
| 158 | } |
| 159 | |
| 160 | /** |
| 161 | * @param Title $title |
| 162 | * @return WikiPage |
| 163 | */ |
| 164 | protected function newPage( Title $title ) { |
| 165 | return new WikiPage( $title ); |
| 166 | } |
| 167 | |
| 168 | /** |
| 169 | * Constructor from a page id |
| 170 | * @param int $id Article ID to load |
| 171 | * @return Article|null |
| 172 | */ |
| 173 | public static function newFromID( $id ) { |
| 174 | $t = Title::newFromID( $id ); |
| 175 | return $t === null ? null : new static( $t ); |
| 176 | } |
| 177 | |
| 178 | /** |
| 179 | * Create an Article object of the appropriate class for the given page. |
| 180 | * |
| 181 | * @param Title $title |
| 182 | * @param IContextSource $context |
| 183 | * @return Article |
| 184 | */ |
| 185 | public static function newFromTitle( $title, IContextSource $context ): self { |
| 186 | if ( $title->getNamespace() === NS_MEDIA ) { |
| 187 | // XXX: This should not be here, but where should it go? |
| 188 | $title = Title::makeTitle( NS_FILE, $title->getDBkey() ); |
| 189 | } |
| 190 | |
| 191 | $page = null; |
| 192 | ( new HookRunner( MediaWikiServices::getInstance()->getHookContainer() ) ) |
| 193 | // @phan-suppress-next-line PhanTypeMismatchArgument Type mismatch on pass-by-ref args |
| 194 | ->onArticleFromTitle( $title, $page, $context ); |
| 195 | if ( !$page ) { |
| 196 | switch ( $title->getNamespace() ) { |
| 197 | case NS_FILE: |
| 198 | $page = new ImagePage( $title ); |
| 199 | break; |
| 200 | case NS_CATEGORY: |
| 201 | $page = new CategoryPage( $title ); |
| 202 | break; |
| 203 | default: |
| 204 | $page = new Article( $title ); |
| 205 | } |
| 206 | } |
| 207 | $page->setContext( $context ); |
| 208 | |
| 209 | return $page; |
| 210 | } |
| 211 | |
| 212 | /** |
| 213 | * Create an Article object of the appropriate class for the given page. |
| 214 | * |
| 215 | * @param WikiPage $page |
| 216 | * @param IContextSource $context |
| 217 | * @return Article |
| 218 | */ |
| 219 | public static function newFromWikiPage( WikiPage $page, IContextSource $context ) { |
| 220 | $article = self::newFromTitle( $page->getTitle(), $context ); |
| 221 | $article->mPage = $page; // override to keep process cached vars |
| 222 | return $article; |
| 223 | } |
| 224 | |
| 225 | /** |
| 226 | * Get the page this view was redirected from |
| 227 | * @return Title|null |
| 228 | * @since 1.28 |
| 229 | */ |
| 230 | public function getRedirectedFrom() { |
| 231 | return $this->mRedirectedFrom; |
| 232 | } |
| 233 | |
| 234 | /** |
| 235 | * Tell the page view functions that this view was redirected |
| 236 | * from another page on the wiki. |
| 237 | * @param Title $from |
| 238 | */ |
| 239 | public function setRedirectedFrom( Title $from ) { |
| 240 | $this->mRedirectedFrom = $from; |
| 241 | } |
| 242 | |
| 243 | /** |
| 244 | * Get the title object of the article |
| 245 | * |
| 246 | * @return Title Title object of this page |
| 247 | */ |
| 248 | public function getTitle() { |
| 249 | return $this->mPage->getTitle(); |
| 250 | } |
| 251 | |
| 252 | /** |
| 253 | * Get the WikiPage object of this instance |
| 254 | * |
| 255 | * @since 1.19 |
| 256 | * @return WikiPage |
| 257 | */ |
| 258 | public function getPage() { |
| 259 | return $this->mPage; |
| 260 | } |
| 261 | |
| 262 | public function clear() { |
| 263 | $this->mRedirectedFrom = null; # Title object if set |
| 264 | $this->mRedirectUrl = false; |
| 265 | $this->mRevisionRecord = null; |
| 266 | $this->fetchResult = null; |
| 267 | |
| 268 | // TODO hard-deprecate direct access to public fields |
| 269 | |
| 270 | $this->mPage->clear(); |
| 271 | } |
| 272 | |
| 273 | /** |
| 274 | * @see getOldIDFromRequest() |
| 275 | * @see getRevIdFetched() |
| 276 | * |
| 277 | * @return int The oldid of the article that is was requested in the constructor or via the |
| 278 | * context's WebRequest. |
| 279 | */ |
| 280 | public function getOldID() { |
| 281 | if ( $this->mOldId === null ) { |
| 282 | $this->mOldId = $this->getOldIDFromRequest(); |
| 283 | } |
| 284 | |
| 285 | return $this->mOldId; |
| 286 | } |
| 287 | |
| 288 | /** |
| 289 | * Sets $this->mRedirectUrl to a correct URL if the query parameters are incorrect |
| 290 | * |
| 291 | * @return int The old id for the request |
| 292 | */ |
| 293 | public function getOldIDFromRequest() { |
| 294 | $this->mRedirectUrl = false; |
| 295 | |
| 296 | $request = $this->getContext()->getRequest(); |
| 297 | $oldid = $request->getIntOrNull( 'oldid' ); |
| 298 | |
| 299 | if ( $oldid === null ) { |
| 300 | return 0; |
| 301 | } |
| 302 | |
| 303 | if ( $oldid !== 0 ) { |
| 304 | # Load the given revision and check whether the page is another one. |
| 305 | # In that case, update this instance to reflect the change. |
| 306 | if ( $oldid === $this->mPage->getLatest() ) { |
| 307 | $this->mRevisionRecord = $this->mPage->getRevisionRecord(); |
| 308 | } else { |
| 309 | $this->mRevisionRecord = $this->revisionStore->getRevisionById( $oldid ); |
| 310 | if ( $this->mRevisionRecord !== null ) { |
| 311 | $revPageId = $this->mRevisionRecord->getPageId(); |
| 312 | // Revision title doesn't match the page title given? |
| 313 | if ( $this->mPage->getId() !== $revPageId ) { |
| 314 | $this->mPage = $this->wikiPageFactory->newFromID( $revPageId ); |
| 315 | } |
| 316 | } |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | $oldRev = $this->mRevisionRecord; |
| 321 | if ( $request->getRawVal( 'direction' ) === 'next' ) { |
| 322 | $nextid = 0; |
| 323 | if ( $oldRev ) { |
| 324 | $nextRev = $this->revisionStore->getNextRevision( $oldRev ); |
| 325 | if ( $nextRev ) { |
| 326 | $nextid = $nextRev->getId(); |
| 327 | } |
| 328 | } |
| 329 | if ( $nextid ) { |
| 330 | $oldid = $nextid; |
| 331 | $this->mRevisionRecord = null; |
| 332 | } else { |
| 333 | $this->mRedirectUrl = $this->getTitle()->getFullURL( 'redirect=no' ); |
| 334 | } |
| 335 | } elseif ( $request->getRawVal( 'direction' ) === 'prev' ) { |
| 336 | $previd = 0; |
| 337 | if ( $oldRev ) { |
| 338 | $prevRev = $this->revisionStore->getPreviousRevision( $oldRev ); |
| 339 | if ( $prevRev ) { |
| 340 | $previd = $prevRev->getId(); |
| 341 | } |
| 342 | } |
| 343 | if ( $previd ) { |
| 344 | $oldid = $previd; |
| 345 | $this->mRevisionRecord = null; |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | return $oldid; |
| 350 | } |
| 351 | |
| 352 | /** |
| 353 | * Fetches the revision to work on. |
| 354 | * The revision is loaded from the database. Refer to $this->fetchResult for the revision |
| 355 | * or any errors encountered while loading it. |
| 356 | * |
| 357 | * Public since 1.35 |
| 358 | * |
| 359 | * @return RevisionRecord|null |
| 360 | */ |
| 361 | public function fetchRevisionRecord() { |
| 362 | if ( $this->fetchResult ) { |
| 363 | return $this->mRevisionRecord; |
| 364 | } |
| 365 | |
| 366 | $oldid = $this->getOldID(); |
| 367 | |
| 368 | // $this->mRevisionRecord might already be fetched by getOldIDFromRequest() |
| 369 | if ( !$this->mRevisionRecord ) { |
| 370 | if ( !$oldid ) { |
| 371 | $this->mRevisionRecord = $this->mPage->getRevisionRecord(); |
| 372 | |
| 373 | if ( !$this->mRevisionRecord ) { |
| 374 | wfDebug( __METHOD__ . " failed to find page data for title " . |
| 375 | $this->getTitle()->getPrefixedText() ); |
| 376 | |
| 377 | // Output for this case is done by showMissingArticle(). |
| 378 | $this->fetchResult = Status::newFatal( 'noarticletext' ); |
| 379 | return null; |
| 380 | } |
| 381 | } else { |
| 382 | $this->mRevisionRecord = $this->revisionStore->getRevisionById( $oldid ); |
| 383 | |
| 384 | if ( !$this->mRevisionRecord ) { |
| 385 | wfDebug( __METHOD__ . " failed to load revision, rev_id $oldid" ); |
| 386 | |
| 387 | $this->fetchResult = Status::newFatal( $this->getMissingRevisionMsg( $oldid ) ); |
| 388 | return null; |
| 389 | } |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | if ( !$this->mRevisionRecord->userCan( RevisionRecord::DELETED_TEXT, $this->getContext()->getAuthority() ) ) { |
| 394 | wfDebug( __METHOD__ . " failed to retrieve content of revision " . $this->mRevisionRecord->getId() ); |
| 395 | |
| 396 | // Output for this case is done by showDeletedRevisionHeader(). |
| 397 | // title used in wikilinks, should not contain whitespaces |
| 398 | $this->fetchResult = new Status; |
| 399 | $title = $this->getTitle()->getPrefixedDBkey(); |
| 400 | |
| 401 | if ( $this->mRevisionRecord->isDeleted( RevisionRecord::DELETED_RESTRICTED ) ) { |
| 402 | $this->fetchResult->fatal( 'rev-suppressed-text' ); |
| 403 | } else { |
| 404 | $this->fetchResult->fatal( 'rev-deleted-text-permission', $title ); |
| 405 | } |
| 406 | |
| 407 | return null; |
| 408 | } |
| 409 | |
| 410 | $this->fetchResult = Status::newGood( $this->mRevisionRecord ); |
| 411 | return $this->mRevisionRecord; |
| 412 | } |
| 413 | |
| 414 | /** |
| 415 | * Returns true if the currently-referenced revision is the current edit |
| 416 | * to this page (and it exists). |
| 417 | * @return bool |
| 418 | */ |
| 419 | public function isCurrent() { |
| 420 | # If no oldid, this is the current version. |
| 421 | if ( $this->getOldID() == 0 ) { |
| 422 | return true; |
| 423 | } |
| 424 | |
| 425 | return $this->mPage->exists() && |
| 426 | $this->mRevisionRecord && |
| 427 | $this->mRevisionRecord->isCurrent(); |
| 428 | } |
| 429 | |
| 430 | /** |
| 431 | * Use this to fetch the rev ID used on page views |
| 432 | * |
| 433 | * Before fetchRevisionRecord was called, this returns the page's latest revision, |
| 434 | * regardless of what getOldID() returns. |
| 435 | * |
| 436 | * @return int Revision ID of last article revision |
| 437 | */ |
| 438 | public function getRevIdFetched() { |
| 439 | if ( $this->fetchResult && $this->fetchResult->isOK() ) { |
| 440 | /** @var RevisionRecord $rev */ |
| 441 | $rev = $this->fetchResult->getValue(); |
| 442 | return $rev->getId(); |
| 443 | } else { |
| 444 | return $this->mPage->getLatest(); |
| 445 | } |
| 446 | } |
| 447 | |
| 448 | /** |
| 449 | * This is the default action of the index.php entry point: just view the |
| 450 | * page of the given title. |
| 451 | */ |
| 452 | public function view() { |
| 453 | $context = $this->getContext(); |
| 454 | $useFileCache = $context->getConfig()->get( MainConfigNames::UseFileCache ); |
| 455 | |
| 456 | # Get variables from query string |
| 457 | # As side effect this will load the revision and update the title |
| 458 | # in a revision ID is passed in the request, so this should remain |
| 459 | # the first call of this method even if $oldid is used way below. |
| 460 | $oldid = $this->getOldID(); |
| 461 | |
| 462 | $authority = $context->getAuthority(); |
| 463 | # Another check in case getOldID() is altering the title |
| 464 | $permissionStatus = PermissionStatus::newEmpty(); |
| 465 | if ( !$authority |
| 466 | ->authorizeRead( 'read', $this->getTitle(), $permissionStatus ) |
| 467 | ) { |
| 468 | wfDebug( __METHOD__ . ": denied on secondary read check" ); |
| 469 | throw new PermissionsError( 'read', $permissionStatus ); |
| 470 | } |
| 471 | |
| 472 | $outputPage = $context->getOutput(); |
| 473 | # getOldID() may as well want us to redirect somewhere else |
| 474 | if ( $this->mRedirectUrl ) { |
| 475 | $outputPage->redirect( $this->mRedirectUrl ); |
| 476 | wfDebug( __METHOD__ . ": redirecting due to oldid" ); |
| 477 | |
| 478 | return; |
| 479 | } |
| 480 | |
| 481 | # If we got diff in the query, we want to see a diff page instead of the article. |
| 482 | if ( $context->getRequest()->getCheck( 'diff' ) ) { |
| 483 | wfDebug( __METHOD__ . ": showing diff page" ); |
| 484 | $this->showDiffPage(); |
| 485 | |
| 486 | return; |
| 487 | } |
| 488 | |
| 489 | $this->showProtectionIndicator(); |
| 490 | |
| 491 | # Set page title (may be overridden from ParserOutput if title conversion is enabled or DISPLAYTITLE is used) |
| 492 | $outputPage->setPageTitle( Parser::formatPageTitle( |
| 493 | str_replace( '_', ' ', $this->getTitle()->getNsText() ), |
| 494 | ':', |
| 495 | $this->getTitle()->getText() |
| 496 | ) ); |
| 497 | |
| 498 | $outputPage->setArticleFlag( true ); |
| 499 | # Allow frames by default |
| 500 | $outputPage->getMetadata()->setPreventClickjacking( false ); |
| 501 | |
| 502 | $parserOptions = $this->getParserOptions(); |
| 503 | |
| 504 | $poOptions = []; |
| 505 | # Allow extensions to vary parser options used for article rendering |
| 506 | ( new HookRunner( MediaWikiServices::getInstance()->getHookContainer() ) ) |
| 507 | ->onArticleParserOptions( $this, $parserOptions ); |
| 508 | # Render printable version, use printable version cache |
| 509 | if ( $outputPage->isPrintable() ) { |
| 510 | $parserOptions->setIsPrintable( true ); |
| 511 | $poOptions['enableSectionEditLinks'] = false; |
| 512 | $this->addMessageBoxStyles( $outputPage ); |
| 513 | $outputPage->prependHTML( |
| 514 | Html::warningBox( |
| 515 | $outputPage->msg( 'printableversion-deprecated-warning' )->escaped() |
| 516 | ) |
| 517 | ); |
| 518 | } elseif ( $this->viewIsRenderAction || !$this->isCurrent() || |
| 519 | !$authority->probablyCan( 'edit', $this->getTitle() ) |
| 520 | ) { |
| 521 | $poOptions['enableSectionEditLinks'] = false; |
| 522 | } |
| 523 | |
| 524 | # Try client and file cache |
| 525 | if ( $oldid === 0 && $this->mPage->checkTouched() ) { |
| 526 | # Try to stream the output from file cache |
| 527 | if ( $useFileCache && $this->tryFileCache() ) { |
| 528 | wfDebug( __METHOD__ . ": done file cache" ); |
| 529 | # tell wgOut that output is taken care of |
| 530 | $outputPage->disable(); |
| 531 | $this->mPage->doViewUpdates( $authority, $oldid ); |
| 532 | |
| 533 | return; |
| 534 | } |
| 535 | } |
| 536 | |
| 537 | $this->showRedirectedFromHeader(); |
| 538 | $this->showNamespaceHeader(); |
| 539 | |
| 540 | if ( $this->viewIsRenderAction ) { |
| 541 | $poOptions += [ 'absoluteURLs' => true ]; |
| 542 | } |
| 543 | $poOptions += [ 'includeDebugInfo' => true ]; |
| 544 | |
| 545 | try { |
| 546 | $continue = |
| 547 | $this->generateContentOutput( $authority, $parserOptions, $oldid, $outputPage, $poOptions ); |
| 548 | } catch ( BadRevisionException $e ) { |
| 549 | $continue = false; |
| 550 | $this->showViewError( wfMessage( 'badrevision' )->text() ); |
| 551 | } |
| 552 | |
| 553 | if ( !$continue ) { |
| 554 | return; |
| 555 | } |
| 556 | |
| 557 | # For the main page, overwrite the <title> element with the con- |
| 558 | # tents of 'pagetitle-view-mainpage' instead of the default (if |
| 559 | # that's not empty). |
| 560 | # This message always exists because it is in the i18n files |
| 561 | if ( $this->getTitle()->isMainPage() ) { |
| 562 | $msg = $context->msg( 'pagetitle-view-mainpage' )->inContentLanguage(); |
| 563 | if ( !$msg->isDisabled() ) { |
| 564 | $outputPage->setHTMLTitle( $msg->text() ); |
| 565 | } |
| 566 | } |
| 567 | |
| 568 | # Use adaptive TTLs for CDN so delayed/failed purges are noticed less often. |
| 569 | # This could use getTouched(), but that could be scary for major template edits. |
| 570 | $outputPage->adaptCdnTTL( $this->mPage->getTimestamp(), ExpirationAwareness::TTL_DAY ); |
| 571 | |
| 572 | $this->showViewFooter(); |
| 573 | $this->mPage->doViewUpdates( $authority, $oldid, $this->fetchRevisionRecord() ); |
| 574 | |
| 575 | # Load the postEdit module if the user just saved this revision |
| 576 | # See also EditPage::setPostEditCookie |
| 577 | $request = $context->getRequest(); |
| 578 | $cookieKey = EditPage::POST_EDIT_COOKIE_KEY_PREFIX . $this->getRevIdFetched(); |
| 579 | $postEdit = $request->getCookie( $cookieKey ); |
| 580 | if ( $postEdit ) { |
| 581 | # Clear the cookie. This also prevents caching of the response. |
| 582 | $request->response()->clearCookie( $cookieKey ); |
| 583 | $outputPage->addJsConfigVars( 'wgPostEdit', $postEdit ); |
| 584 | $outputPage->addModules( 'mediawiki.action.view.postEdit' ); // FIXME: test this |
| 585 | if ( $this->getContext()->getConfig()->get( MainConfigNames::EnableEditRecovery ) |
| 586 | && $this->userOptionsLookup->getOption( $this->getContext()->getUser(), 'editrecovery' ) |
| 587 | ) { |
| 588 | $outputPage->addModules( 'mediawiki.editRecovery.postEdit' ); |
| 589 | } |
| 590 | } |
| 591 | } |
| 592 | |
| 593 | /** |
| 594 | * Show a lock icon above the article body if the page is protected. |
| 595 | */ |
| 596 | public function showProtectionIndicator(): void { |
| 597 | $title = $this->getTitle(); |
| 598 | $context = $this->getContext(); |
| 599 | $outputPage = $context->getOutput(); |
| 600 | |
| 601 | $protectionIndicatorsAreEnabled = $context->getConfig() |
| 602 | ->get( MainConfigNames::EnableProtectionIndicators ); |
| 603 | |
| 604 | if ( !$protectionIndicatorsAreEnabled || $title->isMainPage() ) { |
| 605 | return; |
| 606 | } |
| 607 | |
| 608 | $protection = $this->restrictionStore->getRestrictions( $title, 'edit' ); |
| 609 | |
| 610 | $cascadeProtection = $this->restrictionStore->getCascadeProtectionSources( $title )[1]; |
| 611 | |
| 612 | $isCascadeProtected = array_key_exists( 'edit', $cascadeProtection ); |
| 613 | |
| 614 | if ( !$protection && !$isCascadeProtected ) { |
| 615 | return; |
| 616 | } |
| 617 | |
| 618 | if ( $isCascadeProtected ) { |
| 619 | // Cascade-protected pages are protected at the sysop level. So it |
| 620 | // should not matter if we take the protection level of the first |
| 621 | // or last page that is being cascaded to the current page. |
| 622 | $protectionLevel = $cascadeProtection['edit'][0]; |
| 623 | } else { |
| 624 | $protectionLevel = $protection[0]; |
| 625 | } |
| 626 | |
| 627 | // Protection levels are stored in the database as plain text, but |
| 628 | // they are expected to be valid protection levels. So we should be able to |
| 629 | // safely use them. However phan thinks this could be a XSS problem so we |
| 630 | // are being paranoid and escaping them once more. |
| 631 | $protectionLevel = htmlspecialchars( $protectionLevel ); |
| 632 | |
| 633 | $protectionExpiry = $this->restrictionStore->getRestrictionExpiry( $title, 'edit' ); |
| 634 | $formattedProtectionExpiry = $context->getLanguage() |
| 635 | ->formatExpiry( $protectionExpiry ?? '' ); |
| 636 | |
| 637 | $protectionMsg = 'protection-indicator-title'; |
| 638 | if ( $protectionExpiry === 'infinity' || !$protectionExpiry ) { |
| 639 | $protectionMsg .= '-infinity'; |
| 640 | } |
| 641 | |
| 642 | // Potential values: 'protection-sysop', 'protection-autoconfirmed', |
| 643 | // 'protection-sysop-cascade' etc. |
| 644 | // If the wiki has more protection levels, the additional ids that get |
| 645 | // added take the form 'protection-<protectionLevel>' and |
| 646 | // 'protection-<protectionLevel>-cascade'. |
| 647 | $protectionIndicatorId = 'protection-' . $protectionLevel; |
| 648 | $protectionIndicatorId .= ( $isCascadeProtected ? '-cascade' : '' ); |
| 649 | |
| 650 | // Messages 'protection-indicator-title', 'protection-indicator-title-infinity' |
| 651 | $protectionMsg = $outputPage->msg( $protectionMsg, $protectionLevel, $formattedProtectionExpiry )->text(); |
| 652 | |
| 653 | // Use a trick similar to the one used in Action::addHelpLink() to allow wikis |
| 654 | // to customize where the help link points to. |
| 655 | $protectionHelpLink = $outputPage->msg( $protectionIndicatorId . '-helppage' ); |
| 656 | if ( $protectionHelpLink->isDisabled() ) { |
| 657 | $protectionHelpLink = 'https://mediawiki.org/wiki/Special:MyLanguage/Help:Protection'; |
| 658 | } else { |
| 659 | $protectionHelpLink = $protectionHelpLink->text(); |
| 660 | } |
| 661 | |
| 662 | $outputPage->setIndicators( [ |
| 663 | $protectionIndicatorId => Html::rawElement( 'a', [ |
| 664 | 'class' => 'mw-protection-indicator-icon--lock', |
| 665 | 'title' => $protectionMsg, |
| 666 | 'href' => $protectionHelpLink |
| 667 | ], |
| 668 | // Screen reader-only text describing the same thing as |
| 669 | // was mentioned in the title attribute. |
| 670 | Html::element( 'span', [], $protectionMsg ) ) |
| 671 | ] ); |
| 672 | |
| 673 | $outputPage->addModuleStyles( 'mediawiki.protectionIndicators.styles' ); |
| 674 | } |
| 675 | |
| 676 | /** |
| 677 | * Determines the desired ParserOutput and passes it to $outputPage. |
| 678 | * |
| 679 | * @param Authority $performer |
| 680 | * @param ParserOptions $parserOptions |
| 681 | * @param int $oldid |
| 682 | * @param OutputPage $outputPage |
| 683 | * @param array $textOptions |
| 684 | * |
| 685 | * @return bool True if further processing like footer generation should be applied, |
| 686 | * false to skip further processing. |
| 687 | */ |
| 688 | private function generateContentOutput( |
| 689 | Authority $performer, |
| 690 | ParserOptions $parserOptions, |
| 691 | int $oldid, |
| 692 | OutputPage $outputPage, |
| 693 | array $textOptions |
| 694 | ): bool { |
| 695 | # Should the parser cache be used? |
| 696 | $useParserCache = true; |
| 697 | $pOutput = null; |
| 698 | $parserOutputAccess = MediaWikiServices::getInstance()->getParserOutputAccess(); |
| 699 | |
| 700 | // NOTE: $outputDone and $useParserCache may be changed by the hook |
| 701 | $this->getHookRunner()->onArticleViewHeader( $this, $outputDone, $useParserCache ); |
| 702 | if ( $outputDone ) { |
| 703 | if ( $outputDone instanceof ParserOutput ) { |
| 704 | $pOutput = $outputDone; |
| 705 | } |
| 706 | |
| 707 | if ( $pOutput ) { |
| 708 | $this->doOutputMetaData( $pOutput, $outputPage ); |
| 709 | } |
| 710 | return true; |
| 711 | } |
| 712 | |
| 713 | // Early abort if the page doesn't exist |
| 714 | if ( !$this->mPage->exists() ) { |
| 715 | wfDebug( __METHOD__ . ": showing missing article" ); |
| 716 | $this->showMissingArticle(); |
| 717 | $this->mPage->doViewUpdates( $performer ); |
| 718 | return false; // skip all further output to OutputPage |
| 719 | } |
| 720 | |
| 721 | // Try the latest parser cache |
| 722 | // NOTE: try latest-revision cache first to avoid loading revision. |
| 723 | if ( $useParserCache && !$oldid ) { |
| 724 | $pOutput = $parserOutputAccess->getCachedParserOutput( |
| 725 | $this->getPage(), |
| 726 | $parserOptions, |
| 727 | null, |
| 728 | ParserOutputAccess::OPT_NO_AUDIENCE_CHECK // we already checked |
| 729 | ); |
| 730 | |
| 731 | if ( $pOutput ) { |
| 732 | $this->doOutputFromParserCache( $pOutput, $outputPage, $textOptions ); |
| 733 | $this->doOutputMetaData( $pOutput, $outputPage ); |
| 734 | return true; |
| 735 | } |
| 736 | } |
| 737 | |
| 738 | $rev = $this->fetchRevisionRecord(); |
| 739 | if ( !$this->fetchResult->isOK() ) { |
| 740 | $this->showViewError( $this->fetchResult->getWikiText( |
| 741 | false, false, $this->getContext()->getLanguage() |
| 742 | ) ); |
| 743 | return true; |
| 744 | } |
| 745 | |
| 746 | # Are we looking at an old revision |
| 747 | if ( $oldid ) { |
| 748 | $this->setOldSubtitle( $oldid ); |
| 749 | |
| 750 | if ( !$this->showDeletedRevisionHeader() ) { |
| 751 | wfDebug( __METHOD__ . ": cannot view deleted revision" ); |
| 752 | return false; // skip all further output to OutputPage |
| 753 | } |
| 754 | |
| 755 | // Try the old revision parser cache |
| 756 | // NOTE: Repeating cache check for old revision to avoid fetching $rev |
| 757 | // before it's absolutely necessary. |
| 758 | if ( $useParserCache ) { |
| 759 | $pOutput = $parserOutputAccess->getCachedParserOutput( |
| 760 | $this->getPage(), |
| 761 | $parserOptions, |
| 762 | $rev, |
| 763 | ParserOutputAccess::OPT_NO_AUDIENCE_CHECK // we already checked in fetchRevisionRecord |
| 764 | ); |
| 765 | |
| 766 | if ( $pOutput ) { |
| 767 | $this->doOutputFromParserCache( $pOutput, $outputPage, $textOptions ); |
| 768 | $this->doOutputMetaData( $pOutput, $outputPage ); |
| 769 | return true; |
| 770 | } |
| 771 | } |
| 772 | } |
| 773 | |
| 774 | # Ensure that UI elements requiring revision ID have |
| 775 | # the correct version information. (This may be overwritten after creation of ParserOutput) |
| 776 | $outputPage->setRevisionId( $this->getRevIdFetched() ); |
| 777 | $outputPage->setRevisionIsCurrent( $rev->isCurrent() ); |
| 778 | # Preload timestamp to avoid a DB hit |
| 779 | $outputPage->setRevisionTimestamp( $rev->getTimestamp() ); |
| 780 | |
| 781 | # Pages containing custom CSS or JavaScript get special treatment |
| 782 | if ( $this->getTitle()->isSiteConfigPage() || $this->getTitle()->isUserConfigPage() ) { |
| 783 | $dir = $this->getContext()->getLanguage()->getDir(); |
| 784 | $lang = $this->getContext()->getLanguage()->getHtmlCode(); |
| 785 | |
| 786 | $outputPage->wrapWikiMsg( |
| 787 | "<div id='mw-clearyourcache' lang='$lang' dir='$dir' class='mw-content-$dir'>\n$1\n</div>", |
| 788 | 'clearyourcache' |
| 789 | ); |
| 790 | $outputPage->addModuleStyles( 'mediawiki.action.styles' ); |
| 791 | } elseif ( !$this->getHookRunner()->onArticleRevisionViewCustom( |
| 792 | $rev, |
| 793 | $this->getTitle(), |
| 794 | $oldid, |
| 795 | $outputPage ) |
| 796 | ) { |
| 797 | // NOTE: sync with hooks called in DifferenceEngine::renderNewRevision() |
| 798 | // Allow extensions do their own custom view for certain pages |
| 799 | $this->doOutputMetaData( $pOutput, $outputPage ); |
| 800 | return true; |
| 801 | } |
| 802 | |
| 803 | # Run the parse, protected by a pool counter |
| 804 | wfDebug( __METHOD__ . ": doing uncached parse" ); |
| 805 | |
| 806 | $opt = 0; |
| 807 | |
| 808 | // we already checked the cache in case 2, don't check again. |
| 809 | $opt |= ParserOutputAccess::OPT_NO_CHECK_CACHE; |
| 810 | |
| 811 | // we already checked in fetchRevisionRecord() |
| 812 | $opt |= ParserOutputAccess::OPT_NO_AUDIENCE_CHECK; |
| 813 | |
| 814 | // enable stampede protection and allow stale content |
| 815 | $opt |= ParserOutputAccess::OPT_FOR_ARTICLE_VIEW; |
| 816 | |
| 817 | // Attempt to trigger WikiPage::triggerOpportunisticLinksUpdate |
| 818 | // Ideally this should not be the responsibility of the ParserCache to control this. |
| 819 | // See https://phabricator.wikimedia.org/T329842#8816557 for more context. |
| 820 | $opt |= ParserOutputAccess::OPT_LINKS_UPDATE; |
| 821 | |
| 822 | if ( !$rev->getId() || !$useParserCache ) { |
| 823 | // fake revision or uncacheable options |
| 824 | $opt |= ParserOutputAccess::OPT_NO_CACHE; |
| 825 | } |
| 826 | |
| 827 | $renderStatus = $parserOutputAccess->getParserOutput( |
| 828 | $this->getPage(), |
| 829 | $parserOptions, |
| 830 | $rev, |
| 831 | $opt |
| 832 | ); |
| 833 | |
| 834 | // T327164: If parsoid cache warming is enabled, we want to ensure that the page |
| 835 | // the user is currently looking at has a cached parsoid rendering, in case they |
| 836 | // open visual editor. The cache entry would typically be missing if it has expired |
| 837 | // from the cache or it was invalidated by RefreshLinksJob. When "traditional" |
| 838 | // parser output has been invalidated by RefreshLinksJob, we will render it on |
| 839 | // the fly when a user requests the page, and thereby populate the cache again, |
| 840 | // per the code above. |
| 841 | // The code below is intended to do the same for parsoid output, but asynchronously |
| 842 | // in a job, so the user does not have to wait. |
| 843 | // Note that we get here if the traditional parser output was missing from the cache. |
| 844 | // We do not check if the parsoid output is present in the cache, because that check |
| 845 | // takes time. The assumption is that if we have traditional parser output |
| 846 | // cached, we probably also have parsoid output cached. |
| 847 | // So we leave it to ParsoidCachePrewarmJob to determine whether or not parsing is |
| 848 | // needed. |
| 849 | if ( $oldid === 0 || $oldid === $this->getPage()->getLatest() ) { |
| 850 | $parsoidCacheWarmingEnabled = $this->getContext()->getConfig() |
| 851 | ->get( MainConfigNames::ParsoidCacheConfig )['WarmParsoidParserCache']; |
| 852 | |
| 853 | if ( $parsoidCacheWarmingEnabled ) { |
| 854 | $parsoidJobSpec = ParsoidCachePrewarmJob::newSpec( |
| 855 | $rev->getId(), |
| 856 | $this->getPage()->toPageRecord(), |
| 857 | [ 'causeAction' => 'view' ] |
| 858 | ); |
| 859 | $this->jobQueueGroup->lazyPush( $parsoidJobSpec ); |
| 860 | } |
| 861 | } |
| 862 | |
| 863 | $this->doOutputFromRenderStatus( |
| 864 | $rev, |
| 865 | $renderStatus, |
| 866 | $outputPage, |
| 867 | $textOptions |
| 868 | ); |
| 869 | |
| 870 | if ( !$renderStatus->isOK() ) { |
| 871 | return true; |
| 872 | } |
| 873 | |
| 874 | $pOutput = $renderStatus->getValue(); |
| 875 | $this->doOutputMetaData( $pOutput, $outputPage ); |
| 876 | return true; |
| 877 | } |
| 878 | |
| 879 | /** |
| 880 | * @param ?ParserOutput $pOutput |
| 881 | * @param OutputPage $outputPage |
| 882 | */ |
| 883 | private function doOutputMetaData( ?ParserOutput $pOutput, OutputPage $outputPage ) { |
| 884 | # Adjust title for main page & pages with displaytitle |
| 885 | if ( $pOutput ) { |
| 886 | $this->adjustDisplayTitle( $pOutput ); |
| 887 | |
| 888 | // It would be nice to automatically set this during the first call |
| 889 | // to OutputPage::addParserOutputMetadata, but we can't because doing |
| 890 | // so would break non-pageview actions where OutputPage::getContLangForJS |
| 891 | // has different requirements. |
| 892 | $pageLang = $pOutput->getLanguage(); |
| 893 | if ( $pageLang ) { |
| 894 | $outputPage->setContentLangForJS( $pageLang ); |
| 895 | } |
| 896 | } |
| 897 | |
| 898 | # Check for any __NOINDEX__ tags on the page using $pOutput |
| 899 | $policy = $this->getRobotPolicy( 'view', $pOutput ?: null ); |
| 900 | $outputPage->getMetadata()->setIndexPolicy( $policy['index'] ); |
| 901 | $outputPage->setFollowPolicy( $policy['follow'] ); // FIXME: test this |
| 902 | |
| 903 | $this->mParserOutput = $pOutput; |
| 904 | } |
| 905 | |
| 906 | /** |
| 907 | * @param ParserOutput $pOutput |
| 908 | * @param OutputPage $outputPage |
| 909 | * @param array $textOptions |
| 910 | */ |
| 911 | private function doOutputFromParserCache( |
| 912 | ParserOutput $pOutput, |
| 913 | OutputPage $outputPage, |
| 914 | array $textOptions |
| 915 | ) { |
| 916 | # Ensure that UI elements requiring revision ID have |
| 917 | # the correct version information. |
| 918 | $oldid = $pOutput->getCacheRevisionId() ?? $this->getRevIdFetched(); |
| 919 | $outputPage->setRevisionId( $oldid ); |
| 920 | $outputPage->setRevisionIsCurrent( $oldid === $this->mPage->getLatest() ); |
| 921 | $outputPage->addParserOutput( $pOutput, $textOptions ); |
| 922 | # Preload timestamp to avoid a DB hit |
| 923 | $cachedTimestamp = $pOutput->getRevisionTimestamp(); |
| 924 | if ( $cachedTimestamp !== null ) { |
| 925 | $outputPage->setRevisionTimestamp( $cachedTimestamp ); |
| 926 | $this->mPage->setTimestamp( $cachedTimestamp ); |
| 927 | } |
| 928 | } |
| 929 | |
| 930 | /** |
| 931 | * @param RevisionRecord $rev |
| 932 | * @param Status $renderStatus |
| 933 | * @param OutputPage $outputPage |
| 934 | * @param array $textOptions |
| 935 | */ |
| 936 | private function doOutputFromRenderStatus( |
| 937 | RevisionRecord $rev, |
| 938 | Status $renderStatus, |
| 939 | OutputPage $outputPage, |
| 940 | array $textOptions |
| 941 | ) { |
| 942 | $context = $this->getContext(); |
| 943 | if ( !$renderStatus->isOK() ) { |
| 944 | $this->showViewError( $renderStatus->getWikiText( |
| 945 | false, 'view-pool-error', $context->getLanguage() |
| 946 | ) ); |
| 947 | return; |
| 948 | } |
| 949 | |
| 950 | $pOutput = $renderStatus->getValue(); |
| 951 | |
| 952 | // Cache stale ParserOutput object with a short expiry |
| 953 | if ( $renderStatus->hasMessage( 'view-pool-dirty-output' ) ) { |
| 954 | $outputPage->lowerCdnMaxage( $context->getConfig()->get( MainConfigNames::CdnMaxageStale ) ); |
| 955 | $outputPage->setLastModified( $pOutput->getCacheTime() ); |
| 956 | $staleReason = $renderStatus->hasMessage( 'view-pool-contention' ) |
| 957 | ? $context->msg( 'view-pool-contention' )->escaped() |
| 958 | : $context->msg( 'view-pool-timeout' )->escaped(); |
| 959 | $outputPage->addHTML( "<!-- parser cache is expired, " . |
| 960 | "sending anyway due to $staleReason-->\n" ); |
| 961 | |
| 962 | // Ensure OutputPage knowns the id from the dirty cache, but keep the current flag (T341013) |
| 963 | $cachedId = $pOutput->getCacheRevisionId(); |
| 964 | if ( $cachedId !== null ) { |
| 965 | $outputPage->setRevisionId( $cachedId ); |
| 966 | $outputPage->setRevisionTimestamp( $pOutput->getTimestamp() ); |
| 967 | } |
| 968 | } |
| 969 | |
| 970 | $outputPage->addParserOutput( $pOutput, $textOptions ); |
| 971 | |
| 972 | if ( $this->getRevisionRedirectTarget( $rev ) ) { |
| 973 | $outputPage->addSubtitle( "<span id=\"redirectsub\">" . |
| 974 | $context->msg( 'redirectpagesub' )->parse() . "</span>" ); |
| 975 | } |
| 976 | } |
| 977 | |
| 978 | /** |
| 979 | * @param RevisionRecord $revision |
| 980 | * @return null|Title |
| 981 | */ |
| 982 | private function getRevisionRedirectTarget( RevisionRecord $revision ) { |
| 983 | // TODO: find a *good* place for the code that determines the redirect target for |
| 984 | // a given revision! |
| 985 | // NOTE: Use main slot content. Compare code in DerivedPageDataUpdater::revisionIsRedirect. |
| 986 | $content = $revision->getContent( SlotRecord::MAIN ); |
| 987 | return $content ? $content->getRedirectTarget() : null; |
| 988 | } |
| 989 | |
| 990 | /** |
| 991 | * Adjust title for pages with displaytitle, -{T|}- or language conversion |
| 992 | * @param ParserOutput $pOutput |
| 993 | */ |
| 994 | public function adjustDisplayTitle( ParserOutput $pOutput ) { |
| 995 | $out = $this->getContext()->getOutput(); |
| 996 | |
| 997 | # Adjust the title if it was set by displaytitle, -{T|}- or language conversion |
| 998 | $titleText = $pOutput->getTitleText(); |
| 999 | if ( strval( $titleText ) !== '' ) { |
| 1000 | $out->setPageTitle( $titleText ); |
| 1001 | $out->setDisplayTitle( $titleText ); |
| 1002 | } |
| 1003 | } |
| 1004 | |
| 1005 | /** |
| 1006 | * Show a diff page according to current request variables. For use within |
| 1007 | * Article::view() only, other callers should use the DifferenceEngine class. |
| 1008 | */ |
| 1009 | protected function showDiffPage() { |
| 1010 | $context = $this->getContext(); |
| 1011 | $outputPage = $context->getOutput(); |
| 1012 | $outputPage->addBodyClasses( 'mw-article-diff' ); |
| 1013 | $request = $context->getRequest(); |
| 1014 | $diff = $request->getVal( 'diff' ); |
| 1015 | $rcid = $request->getInt( 'rcid' ); |
| 1016 | $purge = $request->getRawVal( 'action' ) === 'purge'; |
| 1017 | $unhide = $request->getInt( 'unhide' ) === 1; |
| 1018 | $oldid = $this->getOldID(); |
| 1019 | |
| 1020 | $rev = $this->fetchRevisionRecord(); |
| 1021 | |
| 1022 | if ( !$rev ) { |
| 1023 | // T213621: $rev maybe null due to either lack of permission to view the |
| 1024 | // revision or actually not existing. So let's try loading it from the id |
| 1025 | $rev = $this->revisionStore->getRevisionById( $oldid ); |
| 1026 | if ( $rev ) { |
| 1027 | // Revision exists but $user lacks permission to diff it. |
| 1028 | // Do nothing here. |
| 1029 | // The $rev will later be used to create standard diff elements however. |
| 1030 | } else { |
| 1031 | $outputPage->setPageTitleMsg( $context->msg( 'errorpagetitle' ) ); |
| 1032 | $msg = $context->msg( 'difference-missing-revision' ) |
| 1033 | ->params( $oldid ) |
| 1034 | ->numParams( 1 ) |
| 1035 | ->parseAsBlock(); |
| 1036 | $outputPage->addHTML( $msg ); |
| 1037 | return; |
| 1038 | } |
| 1039 | } |
| 1040 | |
| 1041 | $services = MediaWikiServices::getInstance(); |
| 1042 | |
| 1043 | $contentHandler = $services |
| 1044 | ->getContentHandlerFactory() |
| 1045 | ->getContentHandler( |
| 1046 | $rev->getMainContentModel() |
| 1047 | ); |
| 1048 | $de = $contentHandler->createDifferenceEngine( |
| 1049 | $context, |
| 1050 | $oldid, |
| 1051 | $diff, |
| 1052 | $rcid, |
| 1053 | $purge, |
| 1054 | $unhide |
| 1055 | ); |
| 1056 | |
| 1057 | $diffType = $request->getVal( 'diff-type' ); |
| 1058 | |
| 1059 | if ( $diffType === null ) { |
| 1060 | $diffType = $this->userOptionsLookup |
| 1061 | ->getOption( $context->getUser(), 'diff-type' ); |
| 1062 | } else { |
| 1063 | $de->setExtraQueryParams( [ 'diff-type' => $diffType ] ); |
| 1064 | } |
| 1065 | |
| 1066 | $de->setSlotDiffOptions( [ |
| 1067 | 'diff-type' => $diffType, |
| 1068 | 'expand-url' => $this->viewIsRenderAction, |
| 1069 | 'inline-toggle' => true, |
| 1070 | ] ); |
| 1071 | $de->showDiffPage( $this->isDiffOnlyView() ); |
| 1072 | |
| 1073 | // Run view updates for the newer revision being diffed (and shown |
| 1074 | // below the diff if not diffOnly). |
| 1075 | [ , $new ] = $de->mapDiffPrevNext( $oldid, $diff ); |
| 1076 | // New can be false, convert it to 0 - this conveniently means the latest revision |
| 1077 | $this->mPage->doViewUpdates( $context->getAuthority(), (int)$new ); |
| 1078 | |
| 1079 | // Add link to help page; see T321569 |
| 1080 | $context->getOutput()->addHelpLink( 'Help:Diff' ); |
| 1081 | } |
| 1082 | |
| 1083 | protected function isDiffOnlyView() { |
| 1084 | return $this->getContext()->getRequest()->getBool( |
| 1085 | 'diffonly', |
| 1086 | $this->userOptionsLookup->getBoolOption( $this->getContext()->getUser(), 'diffonly' ) |
| 1087 | ); |
| 1088 | } |
| 1089 | |
| 1090 | /** |
| 1091 | * Get the robot policy to be used for the current view |
| 1092 | * @param string $action The action= GET parameter |
| 1093 | * @param ParserOutput|null $pOutput |
| 1094 | * @return string[] The policy that should be set |
| 1095 | * @todo actions other than 'view' |
| 1096 | */ |
| 1097 | public function getRobotPolicy( $action, ?ParserOutput $pOutput = null ) { |
| 1098 | $context = $this->getContext(); |
| 1099 | $mainConfig = $context->getConfig(); |
| 1100 | $articleRobotPolicies = $mainConfig->get( MainConfigNames::ArticleRobotPolicies ); |
| 1101 | $namespaceRobotPolicies = $mainConfig->get( MainConfigNames::NamespaceRobotPolicies ); |
| 1102 | $defaultRobotPolicy = $mainConfig->get( MainConfigNames::DefaultRobotPolicy ); |
| 1103 | $title = $this->getTitle(); |
| 1104 | $ns = $title->getNamespace(); |
| 1105 | |
| 1106 | # Don't index user and user talk pages for blocked users (T13443) |
| 1107 | if ( $ns === NS_USER || $ns === NS_USER_TALK ) { |
| 1108 | $specificTarget = null; |
| 1109 | $vagueTarget = null; |
| 1110 | $titleText = $title->getText(); |
| 1111 | if ( IPUtils::isValid( $titleText ) ) { |
| 1112 | $vagueTarget = $titleText; |
| 1113 | } else { |
| 1114 | $specificTarget = $title->getRootText(); |
| 1115 | } |
| 1116 | if ( $this->blockStore->newFromTarget( $specificTarget, $vagueTarget ) instanceof DatabaseBlock ) { |
| 1117 | return [ |
| 1118 | 'index' => 'noindex', |
| 1119 | 'follow' => 'nofollow' |
| 1120 | ]; |
| 1121 | } |
| 1122 | } |
| 1123 | |
| 1124 | if ( $this->mPage->getId() === 0 || $this->getOldID() ) { |
| 1125 | # Non-articles (special pages etc), and old revisions |
| 1126 | return [ |
| 1127 | 'index' => 'noindex', |
| 1128 | 'follow' => 'nofollow' |
| 1129 | ]; |
| 1130 | } elseif ( $context->getOutput()->isPrintable() ) { |
| 1131 | # Discourage indexing of printable versions, but encourage following |
| 1132 | return [ |
| 1133 | 'index' => 'noindex', |
| 1134 | 'follow' => 'follow' |
| 1135 | ]; |
| 1136 | } elseif ( $context->getRequest()->getInt( 'curid' ) ) { |
| 1137 | # For ?curid=x urls, disallow indexing |
| 1138 | return [ |
| 1139 | 'index' => 'noindex', |
| 1140 | 'follow' => 'follow' |
| 1141 | ]; |
| 1142 | } |
| 1143 | |
| 1144 | # Otherwise, construct the policy based on the various config variables. |
| 1145 | $policy = self::formatRobotPolicy( $defaultRobotPolicy ); |
| 1146 | |
| 1147 | if ( isset( $namespaceRobotPolicies[$ns] ) ) { |
| 1148 | # Honour customised robot policies for this namespace |
| 1149 | $policy = array_merge( |
| 1150 | $policy, |
| 1151 | self::formatRobotPolicy( $namespaceRobotPolicies[$ns] ) |
| 1152 | ); |
| 1153 | } |
| 1154 | if ( $title->canUseNoindex() && $pOutput && $pOutput->getIndexPolicy() ) { |
| 1155 | # __INDEX__ and __NOINDEX__ magic words, if allowed. Incorporates |
| 1156 | # a final check that we have really got the parser output. |
| 1157 | $policy = array_merge( |
| 1158 | $policy, |
| 1159 | [ 'index' => $pOutput->getIndexPolicy() ] |
| 1160 | ); |
| 1161 | } |
| 1162 | |
| 1163 | if ( isset( $articleRobotPolicies[$title->getPrefixedText()] ) ) { |
| 1164 | # (T16900) site config can override user-defined __INDEX__ or __NOINDEX__ |
| 1165 | $policy = array_merge( |
| 1166 | $policy, |
| 1167 | self::formatRobotPolicy( $articleRobotPolicies[$title->getPrefixedText()] ) |
| 1168 | ); |
| 1169 | } |
| 1170 | |
| 1171 | return $policy; |
| 1172 | } |
| 1173 | |
| 1174 | /** |
| 1175 | * Converts a String robot policy into an associative array, to allow |
| 1176 | * merging of several policies using array_merge(). |
| 1177 | * @param array|string $policy Returns empty array on null/false/'', transparent |
| 1178 | * to already-converted arrays, converts string. |
| 1179 | * @return array 'index' => \<indexpolicy\>, 'follow' => \<followpolicy\> |
| 1180 | */ |
| 1181 | public static function formatRobotPolicy( $policy ) { |
| 1182 | if ( is_array( $policy ) ) { |
| 1183 | return $policy; |
| 1184 | } elseif ( !$policy ) { |
| 1185 | return []; |
| 1186 | } |
| 1187 | |
| 1188 | $arr = []; |
| 1189 | foreach ( explode( ',', $policy ) as $var ) { |
| 1190 | $var = trim( $var ); |
| 1191 | if ( $var === 'index' || $var === 'noindex' ) { |
| 1192 | $arr['index'] = $var; |
| 1193 | } elseif ( $var === 'follow' || $var === 'nofollow' ) { |
| 1194 | $arr['follow'] = $var; |
| 1195 | } |
| 1196 | } |
| 1197 | |
| 1198 | return $arr; |
| 1199 | } |
| 1200 | |
| 1201 | /** |
| 1202 | * If this request is a redirect view, send "redirected from" subtitle to |
| 1203 | * the output. Returns true if the header was needed, false if this is not |
| 1204 | * a redirect view. Handles both local and remote redirects. |
| 1205 | * |
| 1206 | * @return bool |
| 1207 | */ |
| 1208 | public function showRedirectedFromHeader() { |
| 1209 | $context = $this->getContext(); |
| 1210 | $redirectSources = $context->getConfig()->get( MainConfigNames::RedirectSources ); |
| 1211 | $outputPage = $context->getOutput(); |
| 1212 | $request = $context->getRequest(); |
| 1213 | $rdfrom = $request->getVal( 'rdfrom' ); |
| 1214 | |
| 1215 | // Construct a URL for the current page view, but with the target title |
| 1216 | $query = $request->getQueryValues(); |
| 1217 | unset( $query['rdfrom'] ); |
| 1218 | unset( $query['title'] ); |
| 1219 | if ( $this->getTitle()->isRedirect() ) { |
| 1220 | // Prevent double redirects |
| 1221 | $query['redirect'] = 'no'; |
| 1222 | } |
| 1223 | $redirectTargetUrl = $this->getTitle()->getLinkURL( $query ); |
| 1224 | |
| 1225 | if ( $this->mRedirectedFrom ) { |
| 1226 | // This is an internally redirected page view. |
| 1227 | // We'll need a backlink to the source page for navigation. |
| 1228 | if ( $this->getHookRunner()->onArticleViewRedirect( $this ) ) { |
| 1229 | $redir = $this->linkRenderer->makeKnownLink( |
| 1230 | $this->mRedirectedFrom, |
| 1231 | null, |
| 1232 | [], |
| 1233 | [ 'redirect' => 'no' ] |
| 1234 | ); |
| 1235 | |
| 1236 | $outputPage->addSubtitle( "<span class=\"mw-redirectedfrom\">" . |
| 1237 | $context->msg( 'redirectedfrom' )->rawParams( $redir )->parse() |
| 1238 | . "</span>" ); |
| 1239 | |
| 1240 | // Add the script to update the displayed URL and |
| 1241 | // set the fragment if one was specified in the redirect |
| 1242 | $outputPage->addJsConfigVars( [ |
| 1243 | 'wgInternalRedirectTargetUrl' => $redirectTargetUrl, |
| 1244 | ] ); |
| 1245 | $outputPage->addModules( 'mediawiki.action.view.redirect' ); |
| 1246 | |
| 1247 | // Add a <link rel="canonical"> tag |
| 1248 | $outputPage->setCanonicalUrl( $this->getTitle()->getCanonicalURL() ); |
| 1249 | |
| 1250 | // Tell the output object that the user arrived at this article through a redirect |
| 1251 | $outputPage->setRedirectedFrom( $this->mRedirectedFrom ); |
| 1252 | |
| 1253 | return true; |
| 1254 | } |
| 1255 | } elseif ( $rdfrom ) { |
| 1256 | // This is an externally redirected view, from some other wiki. |
| 1257 | // If it was reported from a trusted site, supply a backlink. |
| 1258 | if ( $redirectSources && preg_match( $redirectSources, $rdfrom ) ) { |
| 1259 | $redir = $this->linkRenderer->makeExternalLink( $rdfrom, $rdfrom, $this->getTitle() ); |
| 1260 | $outputPage->addSubtitle( "<span class=\"mw-redirectedfrom\">" . |
| 1261 | $context->msg( 'redirectedfrom' )->rawParams( $redir )->parse() |
| 1262 | . "</span>" ); |
| 1263 | |
| 1264 | // Add the script to update the displayed URL |
| 1265 | $outputPage->addJsConfigVars( [ |
| 1266 | 'wgInternalRedirectTargetUrl' => $redirectTargetUrl, |
| 1267 | ] ); |
| 1268 | $outputPage->addModules( 'mediawiki.action.view.redirect' ); |
| 1269 | |
| 1270 | return true; |
| 1271 | } |
| 1272 | } |
| 1273 | |
| 1274 | return false; |
| 1275 | } |
| 1276 | |
| 1277 | /** |
| 1278 | * Show a header specific to the namespace currently being viewed, like |
| 1279 | * [[MediaWiki:Talkpagetext]]. For Article::view(). |
| 1280 | */ |
| 1281 | public function showNamespaceHeader() { |
| 1282 | if ( $this->getTitle()->isTalkPage() && !$this->getContext()->msg( 'talkpageheader' )->isDisabled() ) { |
| 1283 | $this->getContext()->getOutput()->wrapWikiMsg( |
| 1284 | "<div class=\"mw-talkpageheader\">\n$1\n</div>", |
| 1285 | [ 'talkpageheader' ] |
| 1286 | ); |
| 1287 | } |
| 1288 | } |
| 1289 | |
| 1290 | /** |
| 1291 | * Show the footer section of an ordinary page view |
| 1292 | */ |
| 1293 | public function showViewFooter() { |
| 1294 | # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page |
| 1295 | if ( $this->getTitle()->getNamespace() === NS_USER_TALK |
| 1296 | && IPUtils::isValid( $this->getTitle()->getText() ) |
| 1297 | ) { |
| 1298 | $this->getContext()->getOutput()->addWikiMsg( 'anontalkpagetext' ); |
| 1299 | } |
| 1300 | |
| 1301 | // Show a footer allowing the user to patrol the shown revision or page if possible |
| 1302 | $patrolFooterShown = $this->showPatrolFooter(); |
| 1303 | |
| 1304 | $this->getHookRunner()->onArticleViewFooter( $this, $patrolFooterShown ); |
| 1305 | } |
| 1306 | |
| 1307 | /** |
| 1308 | * If patrol is possible, output a patrol UI box. This is called from the |
| 1309 | * footer section of ordinary page views. If patrol is not possible or not |
| 1310 | * desired, does nothing. |
| 1311 | * |
| 1312 | * Side effect: When the patrol link is build, this method will call |
| 1313 | * OutputPage::setPreventClickjacking(true) and load a JS module. |
| 1314 | * |
| 1315 | * @return bool |
| 1316 | */ |
| 1317 | public function showPatrolFooter() { |
| 1318 | $context = $this->getContext(); |
| 1319 | $mainConfig = $context->getConfig(); |
| 1320 | $useNPPatrol = $mainConfig->get( MainConfigNames::UseNPPatrol ); |
| 1321 | $useRCPatrol = $mainConfig->get( MainConfigNames::UseRCPatrol ); |
| 1322 | $useFilePatrol = $mainConfig->get( MainConfigNames::UseFilePatrol ); |
| 1323 | // Allow hooks to decide whether to not output this at all |
| 1324 | if ( !$this->getHookRunner()->onArticleShowPatrolFooter( $this ) ) { |
| 1325 | return false; |
| 1326 | } |
| 1327 | |
| 1328 | $outputPage = $context->getOutput(); |
| 1329 | $user = $context->getUser(); |
| 1330 | $title = $this->getTitle(); |
| 1331 | $rc = false; |
| 1332 | |
| 1333 | if ( !$context->getAuthority()->probablyCan( 'patrol', $title ) |
| 1334 | || !( $useRCPatrol || $useNPPatrol |
| 1335 | || ( $useFilePatrol && $title->inNamespace( NS_FILE ) ) ) |
| 1336 | ) { |
| 1337 | // Patrolling is disabled or the user isn't allowed to |
| 1338 | return false; |
| 1339 | } |
| 1340 | |
| 1341 | if ( $this->mRevisionRecord |
| 1342 | && !RecentChange::isInRCLifespan( $this->mRevisionRecord->getTimestamp(), 21600 ) |
| 1343 | ) { |
| 1344 | // The current revision is already older than what could be in the RC table |
| 1345 | // 6h tolerance because the RC might not be cleaned out regularly |
| 1346 | return false; |
| 1347 | } |
| 1348 | |
| 1349 | // Check for cached results |
| 1350 | $cache = MediaWikiServices::getInstance()->getMainWANObjectCache(); |
| 1351 | $key = $cache->makeKey( 'unpatrollable-page', $title->getArticleID() ); |
| 1352 | if ( $cache->get( $key ) ) { |
| 1353 | return false; |
| 1354 | } |
| 1355 | |
| 1356 | $dbr = $this->dbProvider->getReplicaDatabase(); |
| 1357 | $oldestRevisionRow = $dbr->newSelectQueryBuilder() |
| 1358 | ->select( [ 'rev_id', 'rev_timestamp' ] ) |
| 1359 | ->from( 'revision' ) |
| 1360 | ->where( [ 'rev_page' => $title->getArticleID() ] ) |
| 1361 | ->orderBy( [ 'rev_timestamp', 'rev_id' ] ) |
| 1362 | ->caller( __METHOD__ )->fetchRow(); |
| 1363 | $oldestRevisionTimestamp = $oldestRevisionRow ? $oldestRevisionRow->rev_timestamp : false; |
| 1364 | |
| 1365 | // New page patrol: Get the timestamp of the oldest revision which |
| 1366 | // the revision table holds for the given page. Then we look |
| 1367 | // whether it's within the RC lifespan and if it is, we try |
| 1368 | // to get the recentchanges row belonging to that entry. |
| 1369 | $recentPageCreation = false; |
| 1370 | if ( $oldestRevisionTimestamp |
| 1371 | && RecentChange::isInRCLifespan( $oldestRevisionTimestamp, 21600 ) |
| 1372 | ) { |
| 1373 | // 6h tolerance because the RC might not be cleaned out regularly |
| 1374 | $recentPageCreation = true; |
| 1375 | $rc = RecentChange::newFromConds( |
| 1376 | [ |
| 1377 | 'rc_this_oldid' => intval( $oldestRevisionRow->rev_id ), |
| 1378 | // Avoid selecting a categorization entry |
| 1379 | 'rc_type' => RC_NEW, |
| 1380 | ], |
| 1381 | __METHOD__ |
| 1382 | ); |
| 1383 | if ( $rc ) { |
| 1384 | // Use generic patrol message for new pages |
| 1385 | $markPatrolledMsg = $context->msg( 'markaspatrolledtext' ); |
| 1386 | } |
| 1387 | } |
| 1388 | |
| 1389 | // File patrol: Get the timestamp of the latest upload for this page, |
| 1390 | // check whether it is within the RC lifespan and if it is, we try |
| 1391 | // to get the recentchanges row belonging to that entry |
| 1392 | // (with rc_type = RC_LOG, rc_log_type = upload). |
| 1393 | $recentFileUpload = false; |
| 1394 | if ( ( !$rc || $rc->getAttribute( 'rc_patrolled' ) ) && $useFilePatrol |
| 1395 | && $title->getNamespace() === NS_FILE ) { |
| 1396 | // Retrieve timestamp from the current file (lastest upload) |
| 1397 | $newestUploadTimestamp = $dbr->newSelectQueryBuilder() |
| 1398 | ->select( 'img_timestamp' ) |
| 1399 | ->from( 'image' ) |
| 1400 | ->where( [ 'img_name' => $title->getDBkey() ] ) |
| 1401 | ->caller( __METHOD__ )->fetchField(); |
| 1402 | if ( $newestUploadTimestamp |
| 1403 | && RecentChange::isInRCLifespan( $newestUploadTimestamp, 21600 ) |
| 1404 | ) { |
| 1405 | // 6h tolerance because the RC might not be cleaned out regularly |
| 1406 | $recentFileUpload = true; |
| 1407 | $rc = RecentChange::newFromConds( |
| 1408 | [ |
| 1409 | 'rc_type' => RC_LOG, |
| 1410 | 'rc_log_type' => 'upload', |
| 1411 | 'rc_timestamp' => $newestUploadTimestamp, |
| 1412 | 'rc_namespace' => NS_FILE, |
| 1413 | 'rc_cur_id' => $title->getArticleID() |
| 1414 | ], |
| 1415 | __METHOD__ |
| 1416 | ); |
| 1417 | if ( $rc ) { |
| 1418 | // Use patrol message specific to files |
| 1419 | $markPatrolledMsg = $context->msg( 'markaspatrolledtext-file' ); |
| 1420 | } |
| 1421 | } |
| 1422 | } |
| 1423 | |
| 1424 | if ( !$recentPageCreation && !$recentFileUpload ) { |
| 1425 | // Page creation and latest upload (for files) is too old to be in RC |
| 1426 | |
| 1427 | // We definitely can't patrol so cache the information |
| 1428 | // When a new file version is uploaded, the cache is cleared |
| 1429 | $cache->set( $key, '1' ); |
| 1430 | |
| 1431 | return false; |
| 1432 | } |
| 1433 | |
| 1434 | if ( !$rc ) { |
| 1435 | // Don't cache: This can be hit if the page gets accessed very fast after |
| 1436 | // its creation / latest upload or in case we have high replica DB lag. In case |
| 1437 | // the revision is too old, we will already return above. |
| 1438 | return false; |
| 1439 | } |
| 1440 | |
| 1441 | if ( $rc->getAttribute( 'rc_patrolled' ) ) { |
| 1442 | // Patrolled RC entry around |
| 1443 | |
| 1444 | // Cache the information we gathered above in case we can't patrol |
| 1445 | // Don't cache in case we can patrol as this could change |
| 1446 | $cache->set( $key, '1' ); |
| 1447 | |
| 1448 | return false; |
| 1449 | } |
| 1450 | |
| 1451 | if ( $rc->getPerformerIdentity()->equals( $user ) ) { |
| 1452 | // Don't show a patrol link for own creations/uploads. If the user could |
| 1453 | // patrol them, they already would be patrolled |
| 1454 | return false; |
| 1455 | } |
| 1456 | |
| 1457 | $outputPage->getMetadata()->setPreventClickjacking( true ); |
| 1458 | $outputPage->addModules( 'mediawiki.misc-authed-curate' ); |
| 1459 | |
| 1460 | $link = $this->linkRenderer->makeKnownLink( |
| 1461 | $title, |
| 1462 | new HtmlArmor( '<button class="cdx-button cdx-button--action-progressive">' |
| 1463 | // @phan-suppress-next-line PhanPossiblyUndeclaredVariable $markPatrolledMsg is always set |
| 1464 | . $markPatrolledMsg->escaped() . '</button>' ), |
| 1465 | [], |
| 1466 | [ |
| 1467 | 'action' => 'markpatrolled', |
| 1468 | 'rcid' => $rc->getAttribute( 'rc_id' ), |
| 1469 | ] |
| 1470 | ); |
| 1471 | |
| 1472 | $outputPage->addModuleStyles( 'mediawiki.action.styles' ); |
| 1473 | $outputPage->addHTML( "<div class='patrollink' data-mw='interface'>$link</div>" ); |
| 1474 | |
| 1475 | return true; |
| 1476 | } |
| 1477 | |
| 1478 | /** |
| 1479 | * Purge the cache used to check if it is worth showing the patrol footer |
| 1480 | * For example, it is done during re-uploads when file patrol is used. |
| 1481 | * @param int $articleID ID of the article to purge |
| 1482 | * @since 1.27 |
| 1483 | */ |
| 1484 | public static function purgePatrolFooterCache( $articleID ) { |
| 1485 | $cache = MediaWikiServices::getInstance()->getMainWANObjectCache(); |
| 1486 | $cache->delete( $cache->makeKey( 'unpatrollable-page', $articleID ) ); |
| 1487 | } |
| 1488 | |
| 1489 | /** |
| 1490 | * Show the error text for a missing article. For articles in the MediaWiki |
| 1491 | * namespace, show the default message text. To be called from Article::view(). |
| 1492 | */ |
| 1493 | public function showMissingArticle() { |
| 1494 | $context = $this->getContext(); |
| 1495 | $send404Code = $context->getConfig()->get( MainConfigNames::Send404Code ); |
| 1496 | |
| 1497 | $outputPage = $context->getOutput(); |
| 1498 | // Whether the page is a root user page of an existing user (but not a subpage) |
| 1499 | $validUserPage = false; |
| 1500 | |
| 1501 | $title = $this->getTitle(); |
| 1502 | |
| 1503 | $services = MediaWikiServices::getInstance(); |
| 1504 | |
| 1505 | $contextUser = $context->getUser(); |
| 1506 | |
| 1507 | # Show info in user (talk) namespace. Does the user exist? Is he blocked? |
| 1508 | if ( $title->getNamespace() === NS_USER |
| 1509 | || $title->getNamespace() === NS_USER_TALK |
| 1510 | ) { |
| 1511 | $rootPart = $title->getRootText(); |
| 1512 | $userFactory = $services->getUserFactory(); |
| 1513 | $user = $userFactory->newFromNameOrIp( $rootPart ); |
| 1514 | |
| 1515 | $block = $this->blockStore->newFromTarget( $user, $user ); |
| 1516 | |
| 1517 | if ( $user && $user->isRegistered() && $user->isHidden() && |
| 1518 | !$context->getAuthority()->isAllowed( 'hideuser' ) |
| 1519 | ) { |
| 1520 | // T120883 if the user is hidden and the viewer cannot see hidden |
| 1521 | // users, pretend like it does not exist at all. |
| 1522 | $user = false; |
| 1523 | } |
| 1524 | |
| 1525 | if ( !( $user && $user->isRegistered() ) && !$this->userNameUtils->isIP( $rootPart ) ) { |
| 1526 | $this->addMessageBoxStyles( $outputPage ); |
| 1527 | // User does not exist |
| 1528 | $outputPage->addHTML( Html::warningBox( |
| 1529 | $context->msg( 'userpage-userdoesnotexist-view', wfEscapeWikiText( $rootPart ) )->parse(), |
| 1530 | 'mw-userpage-userdoesnotexist' |
| 1531 | ) ); |
| 1532 | |
| 1533 | // Show renameuser log extract |
| 1534 | LogEventsList::showLogExtract( |
| 1535 | $outputPage, |
| 1536 | 'renameuser', |
| 1537 | Title::makeTitleSafe( NS_USER, $rootPart ), |
| 1538 | '', |
| 1539 | [ |
| 1540 | 'lim' => 10, |
| 1541 | 'showIfEmpty' => false, |
| 1542 | 'msgKey' => [ 'renameuser-renamed-notice', $title->getBaseText() ] |
| 1543 | ] |
| 1544 | ); |
| 1545 | } elseif ( |
| 1546 | $user && $block !== null && |
| 1547 | $block->getType() != DatabaseBlock::TYPE_AUTO && |
| 1548 | ( |
| 1549 | $block->isSitewide() || |
| 1550 | $services->getPermissionManager()->isBlockedFrom( $user, $title, true ) |
| 1551 | ) |
| 1552 | ) { |
| 1553 | // Show log extract if the user is sitewide blocked or is partially |
| 1554 | // blocked and not allowed to edit their user page or user talk page |
| 1555 | LogEventsList::showLogExtract( |
| 1556 | $outputPage, |
| 1557 | 'block', |
| 1558 | $services->getNamespaceInfo()->getCanonicalName( NS_USER ) . ':' . |
| 1559 | $block->getTargetName(), |
| 1560 | '', |
| 1561 | [ |
| 1562 | 'lim' => 1, |
| 1563 | 'showIfEmpty' => false, |
| 1564 | 'msgKey' => [ |
| 1565 | 'blocked-notice-logextract', |
| 1566 | $user->getName() # Support GENDER in notice |
| 1567 | ] |
| 1568 | ] |
| 1569 | ); |
| 1570 | $validUserPage = !$title->isSubpage(); |
| 1571 | } else { |
| 1572 | $validUserPage = !$title->isSubpage(); |
| 1573 | } |
| 1574 | } |
| 1575 | |
| 1576 | $this->getHookRunner()->onShowMissingArticle( $this ); |
| 1577 | |
| 1578 | # Show delete and move logs if there were any such events. |
| 1579 | # The logging query can DOS the site when bots/crawlers cause 404 floods, |
| 1580 | # so be careful showing this. 404 pages must be cheap as they are hard to cache. |
| 1581 | $dbCache = MediaWikiServices::getInstance()->getMainObjectStash(); |
| 1582 | $key = $dbCache->makeKey( 'page-recent-delete', md5( $title->getPrefixedText() ) ); |
| 1583 | $isRegistered = $contextUser->isRegistered(); |
| 1584 | $sessionExists = $context->getRequest()->getSession()->isPersistent(); |
| 1585 | |
| 1586 | if ( $isRegistered || $dbCache->get( $key ) || $sessionExists ) { |
| 1587 | $logTypes = [ 'delete', 'move', 'protect', 'merge' ]; |
| 1588 | |
| 1589 | $dbr = $this->dbProvider->getReplicaDatabase(); |
| 1590 | |
| 1591 | $conds = [ $dbr->expr( 'log_action', '!=', 'revision' ) ]; |
| 1592 | // Give extensions a chance to hide their (unrelated) log entries |
| 1593 | $this->getHookRunner()->onArticle__MissingArticleConditions( $conds, $logTypes ); |
| 1594 | LogEventsList::showLogExtract( |
| 1595 | $outputPage, |
| 1596 | $logTypes, |
| 1597 | $title, |
| 1598 | '', |
| 1599 | [ |
| 1600 | 'lim' => 10, |
| 1601 | 'conds' => $conds, |
| 1602 | 'showIfEmpty' => false, |
| 1603 | 'msgKey' => [ $isRegistered || $sessionExists |
| 1604 | ? 'moveddeleted-notice' |
| 1605 | : 'moveddeleted-notice-recent' |
| 1606 | ] |
| 1607 | ] |
| 1608 | ); |
| 1609 | } |
| 1610 | |
| 1611 | if ( !$this->mPage->hasViewableContent() && $send404Code && !$validUserPage ) { |
| 1612 | // If there's no backing content, send a 404 Not Found |
| 1613 | // for better machine handling of broken links. |
| 1614 | $context->getRequest()->response()->statusHeader( 404 ); |
| 1615 | } |
| 1616 | |
| 1617 | // Also apply the robot policy for nonexisting pages (even if a 404 was used) |
| 1618 | $policy = $this->getRobotPolicy( 'view' ); |
| 1619 | $outputPage->getMetadata()->setIndexPolicy( $policy['index'] ); |
| 1620 | $outputPage->setFollowPolicy( $policy['follow'] ); |
| 1621 | |
| 1622 | $hookResult = $this->getHookRunner()->onBeforeDisplayNoArticleText( $this ); |
| 1623 | |
| 1624 | if ( !$hookResult ) { |
| 1625 | return; |
| 1626 | } |
| 1627 | |
| 1628 | # Show error message |
| 1629 | $oldid = $this->getOldID(); |
| 1630 | if ( !$oldid && $title->getNamespace() === NS_MEDIAWIKI && $title->hasSourceText() ) { |
| 1631 | $text = $this->getTitle()->getDefaultMessageText() ?? ''; |
| 1632 | $outputPage->addWikiTextAsContent( $text ); |
| 1633 | } else { |
| 1634 | if ( $oldid ) { |
| 1635 | $text = $this->getMissingRevisionMsg( $oldid )->plain(); |
| 1636 | } elseif ( $context->getAuthority()->probablyCan( 'edit', $title ) ) { |
| 1637 | $message = $isRegistered ? 'noarticletext' : 'noarticletextanon'; |
| 1638 | $text = $context->msg( $message )->plain(); |
| 1639 | } else { |
| 1640 | $text = $context->msg( 'noarticletext-nopermission' )->plain(); |
| 1641 | } |
| 1642 | |
| 1643 | $dir = $context->getLanguage()->getDir(); |
| 1644 | $lang = $context->getLanguage()->getHtmlCode(); |
| 1645 | $outputPage->addWikiTextAsInterface( Xml::openElement( 'div', [ |
| 1646 | 'class' => "noarticletext mw-content-$dir", |
| 1647 | 'dir' => $dir, |
| 1648 | 'lang' => $lang, |
| 1649 | ] ) . "\n$text\n</div>" ); |
| 1650 | } |
| 1651 | } |
| 1652 | |
| 1653 | /** |
| 1654 | * Show error text for errors generated in Article::view(). |
| 1655 | * @param string $errortext localized wikitext error message |
| 1656 | */ |
| 1657 | private function showViewError( string $errortext ) { |
| 1658 | $outputPage = $this->getContext()->getOutput(); |
| 1659 | $outputPage->setPageTitleMsg( $this->getContext()->msg( 'errorpagetitle' ) ); |
| 1660 | $outputPage->disableClientCache(); |
| 1661 | $outputPage->setRobotPolicy( 'noindex,nofollow' ); |
| 1662 | $outputPage->clearHTML(); |
| 1663 | $this->addMessageBoxStyles( $outputPage ); |
| 1664 | $outputPage->addHTML( Html::errorBox( $outputPage->parseAsContent( $errortext ) ) ); |
| 1665 | } |
| 1666 | |
| 1667 | /** |
| 1668 | * If the revision requested for view is deleted, check permissions. |
| 1669 | * Send either an error message or a warning header to the output. |
| 1670 | * |
| 1671 | * @return bool True if the view is allowed, false if not. |
| 1672 | */ |
| 1673 | public function showDeletedRevisionHeader() { |
| 1674 | if ( !$this->mRevisionRecord->isDeleted( RevisionRecord::DELETED_TEXT ) ) { |
| 1675 | // Not deleted |
| 1676 | return true; |
| 1677 | } |
| 1678 | $outputPage = $this->getContext()->getOutput(); |
| 1679 | // Used in wikilinks, should not contain whitespaces |
| 1680 | $titleText = $this->getTitle()->getPrefixedDBkey(); |
| 1681 | $this->addMessageBoxStyles( $outputPage ); |
| 1682 | // If the user is not allowed to see it... |
| 1683 | if ( !$this->mRevisionRecord->userCan( |
| 1684 | RevisionRecord::DELETED_TEXT, |
| 1685 | $this->getContext()->getAuthority() |
| 1686 | ) ) { |
| 1687 | $outputPage->addHTML( |
| 1688 | Html::warningBox( |
| 1689 | $outputPage->msg( 'rev-deleted-text-permission', $titleText )->parse(), |
| 1690 | 'plainlinks' |
| 1691 | ) |
| 1692 | ); |
| 1693 | |
| 1694 | return false; |
| 1695 | // If the user needs to confirm that they want to see it... |
| 1696 | } elseif ( $this->getContext()->getRequest()->getInt( 'unhide' ) !== 1 ) { |
| 1697 | # Give explanation and add a link to view the revision... |
| 1698 | $oldid = intval( $this->getOldID() ); |
| 1699 | $link = $this->getTitle()->getFullURL( "oldid={$oldid}&unhide=1" ); |
| 1700 | $msg = $this->mRevisionRecord->isDeleted( RevisionRecord::DELETED_RESTRICTED ) ? |
| 1701 | 'rev-suppressed-text-unhide' : 'rev-deleted-text-unhide'; |
| 1702 | $outputPage->addHTML( |
| 1703 | Html::warningBox( |
| 1704 | $outputPage->msg( $msg, $link )->parse(), |
| 1705 | 'plainlinks' |
| 1706 | ) |
| 1707 | ); |
| 1708 | |
| 1709 | return false; |
| 1710 | // We are allowed to see... |
| 1711 | } else { |
| 1712 | $msg = $this->mRevisionRecord->isDeleted( RevisionRecord::DELETED_RESTRICTED ) |
| 1713 | ? [ 'rev-suppressed-text-view', $titleText ] |
| 1714 | : [ 'rev-deleted-text-view', $titleText ]; |
| 1715 | $outputPage->addHTML( |
| 1716 | Html::warningBox( |
| 1717 | $outputPage->msg( $msg[0], $msg[1] )->parse(), |
| 1718 | 'plainlinks' |
| 1719 | ) |
| 1720 | ); |
| 1721 | |
| 1722 | return true; |
| 1723 | } |
| 1724 | } |
| 1725 | |
| 1726 | /** |
| 1727 | * @param OutputPage $outputPage |
| 1728 | */ |
| 1729 | private function addMessageBoxStyles( OutputPage $outputPage ) { |
| 1730 | $outputPage->addModuleStyles( [ |
| 1731 | 'mediawiki.codex.messagebox.styles', |
| 1732 | ] ); |
| 1733 | } |
| 1734 | |
| 1735 | /** |
| 1736 | * Generate the navigation links when browsing through an article revisions |
| 1737 | * It shows the information as: |
| 1738 | * Revision as of \<date\>; view current revision |
| 1739 | * \<- Previous version | Next Version -\> |
| 1740 | * |
| 1741 | * @param int $oldid Revision ID of this article revision |
| 1742 | */ |
| 1743 | public function setOldSubtitle( $oldid = 0 ) { |
| 1744 | if ( !$this->getHookRunner()->onDisplayOldSubtitle( $this, $oldid ) ) { |
| 1745 | return; |
| 1746 | } |
| 1747 | |
| 1748 | $context = $this->getContext(); |
| 1749 | $unhide = $context->getRequest()->getInt( 'unhide' ) === 1; |
| 1750 | |
| 1751 | # Cascade unhide param in links for easy deletion browsing |
| 1752 | $extraParams = []; |
| 1753 | if ( $unhide ) { |
| 1754 | $extraParams['unhide'] = 1; |
| 1755 | } |
| 1756 | |
| 1757 | if ( $this->mRevisionRecord && $this->mRevisionRecord->getId() === $oldid ) { |
| 1758 | $revisionRecord = $this->mRevisionRecord; |
| 1759 | } else { |
| 1760 | $revisionRecord = $this->revisionStore->getRevisionById( $oldid ); |
| 1761 | } |
| 1762 | if ( !$revisionRecord ) { |
| 1763 | throw new LogicException( 'There should be a revision record at this point.' ); |
| 1764 | } |
| 1765 | |
| 1766 | $timestamp = $revisionRecord->getTimestamp(); |
| 1767 | |
| 1768 | $current = ( $oldid == $this->mPage->getLatest() ); |
| 1769 | $language = $context->getLanguage(); |
| 1770 | $user = $context->getUser(); |
| 1771 | |
| 1772 | $td = $language->userTimeAndDate( $timestamp, $user ); |
| 1773 | $tddate = $language->userDate( $timestamp, $user ); |
| 1774 | $tdtime = $language->userTime( $timestamp, $user ); |
| 1775 | |
| 1776 | # Show user links if allowed to see them. If hidden, then show them only if requested... |
| 1777 | $userlinks = Linker::revUserTools( $revisionRecord, !$unhide ); |
| 1778 | |
| 1779 | $infomsg = $current && !$context->msg( 'revision-info-current' )->isDisabled() |
| 1780 | ? 'revision-info-current' |
| 1781 | : 'revision-info'; |
| 1782 | |
| 1783 | $outputPage = $context->getOutput(); |
| 1784 | $outputPage->addModuleStyles( [ |
| 1785 | 'mediawiki.action.styles', |
| 1786 | 'mediawiki.interface.helpers.styles' |
| 1787 | ] ); |
| 1788 | |
| 1789 | $revisionUser = $revisionRecord->getUser(); |
| 1790 | $revisionInfo = "<div id=\"mw-{$infomsg}\">" . |
| 1791 | $context->msg( $infomsg, $td ) |
| 1792 | ->rawParams( $userlinks ) |
| 1793 | ->params( |
| 1794 | $revisionRecord->getId(), |
| 1795 | $tddate, |
| 1796 | $tdtime, |
| 1797 | $revisionUser ? $revisionUser->getName() : '' |
| 1798 | ) |
| 1799 | ->rawParams( $this->commentFormatter->formatRevision( |
| 1800 | $revisionRecord, |
| 1801 | $user, |
| 1802 | true, |
| 1803 | !$unhide |
| 1804 | ) ) |
| 1805 | ->parse() . |
| 1806 | "</div>"; |
| 1807 | |
| 1808 | $lnk = $current |
| 1809 | ? $context->msg( 'currentrevisionlink' )->escaped() |
| 1810 | : $this->linkRenderer->makeKnownLink( |
| 1811 | $this->getTitle(), |
| 1812 | $context->msg( 'currentrevisionlink' )->text(), |
| 1813 | [], |
| 1814 | $extraParams |
| 1815 | ); |
| 1816 | $curdiff = $current |
| 1817 | ? $context->msg( 'diff' )->escaped() |
| 1818 | : $this->linkRenderer->makeKnownLink( |
| 1819 | $this->getTitle(), |
| 1820 | $context->msg( 'diff' )->text(), |
| 1821 | [], |
| 1822 | [ |
| 1823 | 'diff' => 'cur', |
| 1824 | 'oldid' => $oldid |
| 1825 | ] + $extraParams |
| 1826 | ); |
| 1827 | $prevExist = (bool)$this->revisionStore->getPreviousRevision( $revisionRecord ); |
| 1828 | $prevlink = $prevExist |
| 1829 | ? $this->linkRenderer->makeKnownLink( |
| 1830 | $this->getTitle(), |
| 1831 | $context->msg( 'previousrevision' )->text(), |
| 1832 | [], |
| 1833 | [ |
| 1834 | 'direction' => 'prev', |
| 1835 | 'oldid' => $oldid |
| 1836 | ] + $extraParams |
| 1837 | ) |
| 1838 | : $context->msg( 'previousrevision' )->escaped(); |
| 1839 | $prevdiff = $prevExist |
| 1840 | ? $this->linkRenderer->makeKnownLink( |
| 1841 | $this->getTitle(), |
| 1842 | $context->msg( 'diff' )->text(), |
| 1843 | [], |
| 1844 | [ |
| 1845 | 'diff' => 'prev', |
| 1846 | 'oldid' => $oldid |
| 1847 | ] + $extraParams |
| 1848 | ) |
| 1849 | : $context->msg( 'diff' )->escaped(); |
| 1850 | $nextlink = $current |
| 1851 | ? $context->msg( 'nextrevision' )->escaped() |
| 1852 | : $this->linkRenderer->makeKnownLink( |
| 1853 | $this->getTitle(), |
| 1854 | $context->msg( 'nextrevision' )->text(), |
| 1855 | [], |
| 1856 | [ |
| 1857 | 'direction' => 'next', |
| 1858 | 'oldid' => $oldid |
| 1859 | ] + $extraParams |
| 1860 | ); |
| 1861 | $nextdiff = $current |
| 1862 | ? $context->msg( 'diff' )->escaped() |
| 1863 | : $this->linkRenderer->makeKnownLink( |
| 1864 | $this->getTitle(), |
| 1865 | $context->msg( 'diff' )->text(), |
| 1866 | [], |
| 1867 | [ |
| 1868 | 'diff' => 'next', |
| 1869 | 'oldid' => $oldid |
| 1870 | ] + $extraParams |
| 1871 | ); |
| 1872 | |
| 1873 | $cdel = Linker::getRevDeleteLink( |
| 1874 | $context->getAuthority(), |
| 1875 | $revisionRecord, |
| 1876 | $this->getTitle() |
| 1877 | ); |
| 1878 | if ( $cdel !== '' ) { |
| 1879 | $cdel .= ' '; |
| 1880 | } |
| 1881 | |
| 1882 | // the outer div is need for styling the revision info and nav in MobileFrontend |
| 1883 | $this->addMessageBoxStyles( $outputPage ); |
| 1884 | $outputPage->addSubtitle( |
| 1885 | Html::warningBox( |
| 1886 | $revisionInfo . |
| 1887 | "<div id=\"mw-revision-nav\">" . $cdel . |
| 1888 | $context->msg( 'revision-nav' )->rawParams( |
| 1889 | $prevdiff, $prevlink, $lnk, $curdiff, $nextlink, $nextdiff |
| 1890 | )->escaped() . "</div>", |
| 1891 | 'mw-revision' |
| 1892 | ) |
| 1893 | ); |
| 1894 | } |
| 1895 | |
| 1896 | /** |
| 1897 | * Return the HTML for the top of a redirect page |
| 1898 | * |
| 1899 | * Chances are you should just be using the ParserOutput from |
| 1900 | * WikitextContent::getParserOutput instead of calling this for redirects. |
| 1901 | * |
| 1902 | * @since 1.23 |
| 1903 | * @param Language $lang |
| 1904 | * @param Title $target Destination to redirect |
| 1905 | * @param bool $forceKnown Should the image be shown as a bluelink regardless of existence? |
| 1906 | * @return string Containing HTML with redirect link |
| 1907 | * @deprecated since 1.41, use LinkRenderer::makeRedirectHeader() instead |
| 1908 | */ |
| 1909 | public static function getRedirectHeaderHtml( Language $lang, Title $target, $forceKnown = false ) { |
| 1910 | wfDeprecated( __METHOD__, '1.41' ); |
| 1911 | $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer(); |
| 1912 | return $linkRenderer->makeRedirectHeader( $lang, $target, $forceKnown ); |
| 1913 | } |
| 1914 | |
| 1915 | /** |
| 1916 | * Adds help link with an icon via page indicators. |
| 1917 | * Link target can be overridden by a local message containing a wikilink: |
| 1918 | * the message key is: 'namespace-' + namespace number + '-helppage'. |
| 1919 | * @param string $to Target MediaWiki.org page title or encoded URL. |
| 1920 | * @param bool $overrideBaseUrl Whether $url is a full URL, to avoid MW.o. |
| 1921 | * @since 1.25 |
| 1922 | */ |
| 1923 | public function addHelpLink( $to, $overrideBaseUrl = false ) { |
| 1924 | $out = $this->getContext()->getOutput(); |
| 1925 | $msg = $out->msg( 'namespace-' . $this->getTitle()->getNamespace() . '-helppage' ); |
| 1926 | |
| 1927 | if ( !$msg->isDisabled() ) { |
| 1928 | $title = Title::newFromText( $msg->plain() ); |
| 1929 | if ( $title instanceof Title ) { |
| 1930 | $out->addHelpLink( $title->getLocalURL(), true ); |
| 1931 | } |
| 1932 | } else { |
| 1933 | $out->addHelpLink( $to, $overrideBaseUrl ); |
| 1934 | } |
| 1935 | } |
| 1936 | |
| 1937 | /** |
| 1938 | * Handle action=render |
| 1939 | */ |
| 1940 | public function render() { |
| 1941 | $this->getContext()->getRequest()->response()->header( 'X-Robots-Tag: noindex' ); |
| 1942 | $this->getContext()->getOutput()->setArticleBodyOnly( true ); |
| 1943 | // We later set 'enableSectionEditLinks=false' based on this; also used by ImagePage |
| 1944 | $this->viewIsRenderAction = true; |
| 1945 | $this->view(); |
| 1946 | } |
| 1947 | |
| 1948 | /** |
| 1949 | * action=protect handler |
| 1950 | */ |
| 1951 | public function protect() { |
| 1952 | $form = new ProtectionForm( $this ); |
| 1953 | $form->execute(); |
| 1954 | } |
| 1955 | |
| 1956 | /** |
| 1957 | * action=unprotect handler (alias) |
| 1958 | */ |
| 1959 | public function unprotect() { |
| 1960 | $this->protect(); |
| 1961 | } |
| 1962 | |
| 1963 | /* Caching functions */ |
| 1964 | |
| 1965 | /** |
| 1966 | * checkLastModified returns true if it has taken care of all |
| 1967 | * output to the client that is necessary for this request. |
| 1968 | * (that is, it has sent a cached version of the page) |
| 1969 | * |
| 1970 | * @return bool True if cached version send, false otherwise |
| 1971 | */ |
| 1972 | protected function tryFileCache() { |
| 1973 | static $called = false; |
| 1974 | |
| 1975 | if ( $called ) { |
| 1976 | wfDebug( "Article::tryFileCache(): called twice!?" ); |
| 1977 | return false; |
| 1978 | } |
| 1979 | |
| 1980 | $called = true; |
| 1981 | if ( $this->isFileCacheable() ) { |
| 1982 | $cache = new HTMLFileCache( $this->getTitle(), 'view' ); |
| 1983 | if ( $cache->isCacheGood( $this->mPage->getTouched() ) ) { |
| 1984 | wfDebug( "Article::tryFileCache(): about to load file" ); |
| 1985 | $cache->loadFromFileCache( $this->getContext() ); |
| 1986 | return true; |
| 1987 | } else { |
| 1988 | wfDebug( "Article::tryFileCache(): starting buffer" ); |
| 1989 | ob_start( [ &$cache, 'saveToFileCache' ] ); |
| 1990 | } |
| 1991 | } else { |
| 1992 | wfDebug( "Article::tryFileCache(): not cacheable" ); |
| 1993 | } |
| 1994 | |
| 1995 | return false; |
| 1996 | } |
| 1997 | |
| 1998 | /** |
| 1999 | * Check if the page can be cached |
| 2000 | * @param int $mode One of the HTMLFileCache::MODE_* constants (since 1.28) |
| 2001 | * @return bool |
| 2002 | */ |
| 2003 | public function isFileCacheable( $mode = HTMLFileCache::MODE_NORMAL ) { |
| 2004 | $cacheable = false; |
| 2005 | |
| 2006 | if ( HTMLFileCache::useFileCache( $this->getContext(), $mode ) ) { |
| 2007 | $cacheable = $this->mPage->getId() |
| 2008 | && !$this->mRedirectedFrom && !$this->getTitle()->isRedirect(); |
| 2009 | // Extension may have reason to disable file caching on some pages. |
| 2010 | if ( $cacheable ) { |
| 2011 | $cacheable = $this->getHookRunner()->onIsFileCacheable( $this ) ?? false; |
| 2012 | } |
| 2013 | } |
| 2014 | |
| 2015 | return $cacheable; |
| 2016 | } |
| 2017 | |
| 2018 | /** |
| 2019 | * Lightweight method to get the parser output for a page, checking the parser cache |
| 2020 | * and so on. Doesn't consider most of the stuff that Article::view() is forced to |
| 2021 | * consider, so it's not appropriate to use there. |
| 2022 | * |
| 2023 | * @since 1.16 (r52326) for LiquidThreads |
| 2024 | * |
| 2025 | * @param int|null $oldid Revision ID or null |
| 2026 | * @param UserIdentity|null $user The relevant user |
| 2027 | * @return ParserOutput|false ParserOutput or false if the given revision ID is not found |
| 2028 | */ |
| 2029 | public function getParserOutput( $oldid = null, ?UserIdentity $user = null ) { |
| 2030 | if ( $user === null ) { |
| 2031 | $parserOptions = $this->getParserOptions(); |
| 2032 | } else { |
| 2033 | $parserOptions = $this->mPage->makeParserOptions( $user ); |
| 2034 | $parserOptions->setRenderReason( 'page-view' ); |
| 2035 | } |
| 2036 | |
| 2037 | return $this->mPage->getParserOutput( $parserOptions, $oldid ); |
| 2038 | } |
| 2039 | |
| 2040 | /** |
| 2041 | * Get parser options suitable for rendering the primary article wikitext |
| 2042 | * @return ParserOptions |
| 2043 | */ |
| 2044 | public function getParserOptions() { |
| 2045 | $parserOptions = $this->mPage->makeParserOptions( $this->getContext() ); |
| 2046 | $parserOptions->setRenderReason( 'page-view' ); |
| 2047 | return $parserOptions; |
| 2048 | } |
| 2049 | |
| 2050 | /** |
| 2051 | * Sets the context this Article is executed in |
| 2052 | * |
| 2053 | * @param IContextSource $context |
| 2054 | * @since 1.18 |
| 2055 | */ |
| 2056 | public function setContext( $context ) { |
| 2057 | $this->mContext = $context; |
| 2058 | } |
| 2059 | |
| 2060 | /** |
| 2061 | * Gets the context this Article is executed in |
| 2062 | * |
| 2063 | * @return IContextSource |
| 2064 | * @since 1.18 |
| 2065 | */ |
| 2066 | public function getContext(): IContextSource { |
| 2067 | if ( $this->mContext instanceof IContextSource ) { |
| 2068 | return $this->mContext; |
| 2069 | } else { |
| 2070 | wfDebug( __METHOD__ . " called and \$mContext is null. " . |
| 2071 | "Return RequestContext::getMain()" ); |
| 2072 | return RequestContext::getMain(); |
| 2073 | } |
| 2074 | } |
| 2075 | |
| 2076 | /** |
| 2077 | * Call to WikiPage function for backwards compatibility. |
| 2078 | * @see ContentHandler::getActionOverrides |
| 2079 | * @return array |
| 2080 | */ |
| 2081 | public function getActionOverrides() { |
| 2082 | return $this->mPage->getActionOverrides(); |
| 2083 | } |
| 2084 | |
| 2085 | private function getMissingRevisionMsg( int $oldid ): Message { |
| 2086 | // T251066: Try loading the revision from the archive table. |
| 2087 | // Show link to view it if it exists and the user has permission to view it. |
| 2088 | // (Ignore the given title, if any; look it up from the revision instead.) |
| 2089 | $context = $this->getContext(); |
| 2090 | $revRecord = $this->archivedRevisionLookup->getArchivedRevisionRecord( null, $oldid ); |
| 2091 | if ( |
| 2092 | $revRecord && |
| 2093 | $revRecord->userCan( |
| 2094 | RevisionRecord::DELETED_TEXT, |
| 2095 | $context->getAuthority() |
| 2096 | ) && |
| 2097 | $context->getAuthority()->isAllowedAny( 'deletedtext', 'undelete' ) |
| 2098 | ) { |
| 2099 | return $context->msg( |
| 2100 | 'missing-revision-permission', |
| 2101 | $oldid, |
| 2102 | $revRecord->getTimestamp(), |
| 2103 | Title::newFromPageIdentity( $revRecord->getPage() )->getPrefixedDBkey() |
| 2104 | ); |
| 2105 | } |
| 2106 | return $context->msg( 'missing-revision', $oldid ); |
| 2107 | } |
| 2108 | } |