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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 | namespace MediaWiki\Page; |
| 22 | |
| 23 | use BadMethodCallException; |
| 24 | use HTMLCacheUpdateJob; |
| 25 | use InvalidArgumentException; |
| 26 | use MediaWiki\Actions\InfoAction; |
| 27 | use MediaWiki\Category\Category; |
| 28 | use MediaWiki\CommentStore\CommentStoreComment; |
| 29 | use MediaWiki\Content\Content; |
| 30 | use MediaWiki\Content\ContentHandler; |
| 31 | use MediaWiki\Context\IContextSource; |
| 32 | use MediaWiki\DAO\WikiAwareEntityTrait; |
| 33 | use MediaWiki\Deferred\DeferredUpdates; |
| 34 | use MediaWiki\Edit\PreparedEdit; |
| 35 | use MediaWiki\HookContainer\ProtectedHookAccessorTrait; |
| 36 | use MediaWiki\JobQueue\Jobs\RefreshLinksJob; |
| 37 | use MediaWiki\Linker\LinkTarget; |
| 38 | use MediaWiki\Logger\LoggerFactory; |
| 39 | use MediaWiki\Logging\ManualLogEntry; |
| 40 | use MediaWiki\MainConfigNames; |
| 41 | use MediaWiki\MediaWikiServices; |
| 42 | use MediaWiki\Parser\ParserOptions; |
| 43 | use MediaWiki\Parser\ParserOutput; |
| 44 | use MediaWiki\Permissions\Authority; |
| 45 | use MediaWiki\RecentChanges\RecentChange; |
| 46 | use MediaWiki\Revision\RevisionRecord; |
| 47 | use MediaWiki\Revision\RevisionStore; |
| 48 | use MediaWiki\Revision\SlotRecord; |
| 49 | use MediaWiki\Status\Status; |
| 50 | use MediaWiki\Storage\DerivedPageDataUpdater; |
| 51 | use MediaWiki\Storage\EditResult; |
| 52 | use MediaWiki\Storage\PageUpdateCauses; |
| 53 | use MediaWiki\Storage\PageUpdater; |
| 54 | use MediaWiki\Storage\PageUpdaterFactory; |
| 55 | use MediaWiki\Storage\PageUpdateStatus; |
| 56 | use MediaWiki\Storage\PreparedUpdate; |
| 57 | use MediaWiki\Storage\RevisionSlotsUpdate; |
| 58 | use MediaWiki\Title\Title; |
| 59 | use MediaWiki\Title\TitleArrayFromResult; |
| 60 | use MediaWiki\User\User; |
| 61 | use MediaWiki\User\UserArray; |
| 62 | use MediaWiki\User\UserArrayFromResult; |
| 63 | use MediaWiki\User\UserIdentity; |
| 64 | use MediaWiki\Utils\MWTimestamp; |
| 65 | use MediaWiki\WikiMap\WikiMap; |
| 66 | use RuntimeException; |
| 67 | use stdClass; |
| 68 | use Stringable; |
| 69 | use Wikimedia\Assert\Assert; |
| 70 | use Wikimedia\Assert\PreconditionException; |
| 71 | use Wikimedia\NonSerializable\NonSerializableTrait; |
| 72 | use Wikimedia\Rdbms\FakeResultWrapper; |
| 73 | use Wikimedia\Rdbms\IDatabase; |
| 74 | use Wikimedia\Rdbms\IDBAccessObject; |
| 75 | use Wikimedia\Rdbms\ILoadBalancer; |
| 76 | use Wikimedia\Rdbms\IReadableDatabase; |
| 77 | use Wikimedia\Rdbms\RawSQLValue; |
| 78 | use Wikimedia\Rdbms\SelectQueryBuilder; |
| 79 | |
| 80 | /** |
| 81 | * @defgroup Page Page |
| 82 | */ |
| 83 | |
| 84 | /** |
| 85 | * Base representation for an editable wiki page. |
| 86 | * |
| 87 | * Some fields are public only for backwards-compatibility. Use accessor methods. |
| 88 | * In the past, this class was part of Article.php and everything was public. |
| 89 | * |
| 90 | * @ingroup Page |
| 91 | */ |
| 92 | class WikiPage implements Stringable, Page, PageRecord { |
| 93 | use NonSerializableTrait; |
| 94 | use ProtectedHookAccessorTrait; |
| 95 | use WikiAwareEntityTrait; |
| 96 | |
| 97 | // Constants for $mDataLoadedFrom and related |
| 98 | |
| 99 | /** |
| 100 | * @var Title |
| 101 | * @note for access by subclasses only |
| 102 | */ |
| 103 | protected $mTitle; |
| 104 | |
| 105 | /** |
| 106 | * @var bool |
| 107 | * @note for access by subclasses only |
| 108 | */ |
| 109 | protected $mDataLoaded = false; |
| 110 | |
| 111 | /** |
| 112 | * A cache of the page_is_redirect field, loaded with page data |
| 113 | * @var bool |
| 114 | */ |
| 115 | private $mPageIsRedirectField = false; |
| 116 | |
| 117 | /** |
| 118 | * @var bool |
| 119 | */ |
| 120 | private $mIsNew = false; |
| 121 | |
| 122 | /** |
| 123 | * @var int|false False means "not loaded" |
| 124 | * @note for access by subclasses only |
| 125 | */ |
| 126 | protected $mLatest = false; |
| 127 | |
| 128 | /** |
| 129 | * @var PreparedEdit|false Map of cache fields (text, parser output, ect) for a proposed/new edit |
| 130 | * @note for access by subclasses only |
| 131 | */ |
| 132 | protected $mPreparedEdit = false; |
| 133 | |
| 134 | /** |
| 135 | * @var int|null |
| 136 | */ |
| 137 | protected $mId = null; |
| 138 | |
| 139 | /** |
| 140 | * @var int One of the READ_* constants |
| 141 | */ |
| 142 | protected $mDataLoadedFrom = IDBAccessObject::READ_NONE; |
| 143 | |
| 144 | /** |
| 145 | * @var RevisionRecord|null |
| 146 | */ |
| 147 | private $mLastRevision = null; |
| 148 | |
| 149 | /** |
| 150 | * @var string Timestamp of the current revision or empty string if not loaded |
| 151 | */ |
| 152 | protected $mTimestamp = ''; |
| 153 | |
| 154 | /** |
| 155 | * @var string |
| 156 | */ |
| 157 | protected $mTouched = '19700101000000'; |
| 158 | |
| 159 | /** |
| 160 | * @var string|null |
| 161 | */ |
| 162 | protected $mLanguage = null; |
| 163 | |
| 164 | /** |
| 165 | * @var string |
| 166 | */ |
| 167 | protected $mLinksUpdated = '19700101000000'; |
| 168 | |
| 169 | /** |
| 170 | * @var DerivedPageDataUpdater|null |
| 171 | */ |
| 172 | private $derivedDataUpdater = null; |
| 173 | |
| 174 | public function __construct( PageIdentity $pageIdentity ) { |
| 175 | $pageIdentity->assertWiki( PageIdentity::LOCAL ); |
| 176 | |
| 177 | // TODO: remove the need for casting to Title. |
| 178 | $title = Title::newFromPageIdentity( $pageIdentity ); |
| 179 | if ( !$title->canExist() ) { |
| 180 | throw new InvalidArgumentException( "WikiPage constructed on a Title that cannot exist as a page: $title" ); |
| 181 | } |
| 182 | |
| 183 | $this->mTitle = $title; |
| 184 | } |
| 185 | |
| 186 | /** |
| 187 | * Makes sure that the mTitle object is cloned |
| 188 | * to the newly cloned WikiPage. |
| 189 | */ |
| 190 | public function __clone() { |
| 191 | $this->mTitle = clone $this->mTitle; |
| 192 | } |
| 193 | |
| 194 | /** |
| 195 | * Convert 'fromdb', 'fromdbmaster' and 'forupdate' to READ_* constants. |
| 196 | * |
| 197 | * @param stdClass|string|int $type |
| 198 | * @return mixed |
| 199 | */ |
| 200 | public static function convertSelectType( $type ) { |
| 201 | switch ( $type ) { |
| 202 | case 'fromdb': |
| 203 | return IDBAccessObject::READ_NORMAL; |
| 204 | case 'fromdbmaster': |
| 205 | return IDBAccessObject::READ_LATEST; |
| 206 | case 'forupdate': |
| 207 | return IDBAccessObject::READ_LOCKING; |
| 208 | default: |
| 209 | // It may already be an integer or whatever else |
| 210 | return $type; |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | private function getPageUpdaterFactory(): PageUpdaterFactory { |
| 215 | return MediaWikiServices::getInstance()->getPageUpdaterFactory(); |
| 216 | } |
| 217 | |
| 218 | /** |
| 219 | * @return RevisionStore |
| 220 | */ |
| 221 | private function getRevisionStore() { |
| 222 | return MediaWikiServices::getInstance()->getRevisionStore(); |
| 223 | } |
| 224 | |
| 225 | /** |
| 226 | * @return ILoadBalancer |
| 227 | */ |
| 228 | private function getDBLoadBalancer() { |
| 229 | return MediaWikiServices::getInstance()->getDBLoadBalancer(); |
| 230 | } |
| 231 | |
| 232 | /** |
| 233 | * @todo Move this UI stuff somewhere else |
| 234 | * |
| 235 | * @see ContentHandler::getActionOverrides |
| 236 | * @return array |
| 237 | */ |
| 238 | public function getActionOverrides() { |
| 239 | return $this->getContentHandler()->getActionOverrides(); |
| 240 | } |
| 241 | |
| 242 | /** |
| 243 | * Returns the ContentHandler instance to be used to deal with the content of this WikiPage. |
| 244 | * |
| 245 | * Shorthand for ContentHandler::getForModelID( $this->getContentModel() ); |
| 246 | * |
| 247 | * @return ContentHandler |
| 248 | * |
| 249 | * @since 1.21 |
| 250 | */ |
| 251 | public function getContentHandler() { |
| 252 | $factory = MediaWikiServices::getInstance()->getContentHandlerFactory(); |
| 253 | return $factory->getContentHandler( $this->getContentModel() ); |
| 254 | } |
| 255 | |
| 256 | /** |
| 257 | * Get the title object of the article |
| 258 | * @return Title Title object of this page |
| 259 | */ |
| 260 | public function getTitle(): Title { |
| 261 | return $this->mTitle; |
| 262 | } |
| 263 | |
| 264 | /** |
| 265 | * Clear the object |
| 266 | * @return void |
| 267 | */ |
| 268 | public function clear() { |
| 269 | $this->mDataLoaded = false; |
| 270 | $this->mDataLoadedFrom = IDBAccessObject::READ_NONE; |
| 271 | |
| 272 | $this->clearCacheFields(); |
| 273 | } |
| 274 | |
| 275 | /** |
| 276 | * Clear the object cache fields |
| 277 | * @return void |
| 278 | */ |
| 279 | protected function clearCacheFields() { |
| 280 | $this->mId = null; |
| 281 | $this->mPageIsRedirectField = false; |
| 282 | $this->mLastRevision = null; // Latest revision |
| 283 | $this->mTouched = '19700101000000'; |
| 284 | $this->mLanguage = null; |
| 285 | $this->mLinksUpdated = '19700101000000'; |
| 286 | $this->mTimestamp = ''; |
| 287 | $this->mIsNew = false; |
| 288 | $this->mLatest = false; |
| 289 | // T59026: do not clear $this->derivedDataUpdater since getDerivedDataUpdater() already |
| 290 | // checks the requested rev ID and content against the cached one. For most |
| 291 | // content types, the output should not change during the lifetime of this cache. |
| 292 | // Clearing it can cause extra parses on edit for no reason. |
| 293 | } |
| 294 | |
| 295 | /** |
| 296 | * Clear the mPreparedEdit cache field, as may be needed by mutable content types |
| 297 | * @return void |
| 298 | * @since 1.23 |
| 299 | */ |
| 300 | public function clearPreparedEdit() { |
| 301 | $this->mPreparedEdit = false; |
| 302 | } |
| 303 | |
| 304 | /** |
| 305 | * Return the tables, fields, and join conditions to be selected to create |
| 306 | * a new page object. |
| 307 | * @since 1.31 |
| 308 | * @return array[] With three keys: |
| 309 | * - tables: (string[]) to include in the `$table` to `IReadableDatabase->select()` or |
| 310 | * `SelectQueryBuilder::tables` |
| 311 | * - fields: (string[]) to include in the `$vars` to `IReadableDatabase->select()` or |
| 312 | * `SelectQueryBuilder::fields` |
| 313 | * - joins: (array) to include in the `$join_conds` to `IReadableDatabase->select()` or |
| 314 | * `SelectQueryBuilder::joinConds` |
| 315 | * @phan-return array{tables:string[],fields:string[],joins:array} |
| 316 | */ |
| 317 | public static function getQueryInfo() { |
| 318 | $pageLanguageUseDB = MediaWikiServices::getInstance()->getMainConfig()->get( |
| 319 | MainConfigNames::PageLanguageUseDB ); |
| 320 | |
| 321 | $ret = [ |
| 322 | 'tables' => [ 'page' ], |
| 323 | 'fields' => [ |
| 324 | 'page_id', |
| 325 | 'page_namespace', |
| 326 | 'page_title', |
| 327 | 'page_is_redirect', |
| 328 | 'page_is_new', |
| 329 | 'page_random', |
| 330 | 'page_touched', |
| 331 | 'page_links_updated', |
| 332 | 'page_latest', |
| 333 | 'page_len', |
| 334 | 'page_content_model', |
| 335 | ], |
| 336 | 'joins' => [], |
| 337 | ]; |
| 338 | |
| 339 | if ( $pageLanguageUseDB ) { |
| 340 | $ret['fields'][] = 'page_lang'; |
| 341 | } |
| 342 | |
| 343 | return $ret; |
| 344 | } |
| 345 | |
| 346 | /** |
| 347 | * Fetch a page record with the given conditions |
| 348 | * @param IReadableDatabase $dbr |
| 349 | * @param array $conditions |
| 350 | * @param array $options |
| 351 | * @return stdClass|false Database result resource, or false on failure |
| 352 | */ |
| 353 | protected function pageData( $dbr, $conditions, $options = [] ) { |
| 354 | $pageQuery = self::getQueryInfo(); |
| 355 | |
| 356 | $this->getHookRunner()->onArticlePageDataBefore( |
| 357 | $this, $pageQuery['fields'], $pageQuery['tables'], $pageQuery['joins'] ); |
| 358 | |
| 359 | $row = $dbr->newSelectQueryBuilder() |
| 360 | ->queryInfo( $pageQuery ) |
| 361 | ->where( $conditions ) |
| 362 | ->caller( __METHOD__ ) |
| 363 | ->options( $options ) |
| 364 | ->fetchRow(); |
| 365 | |
| 366 | $this->getHookRunner()->onArticlePageDataAfter( $this, $row ); |
| 367 | |
| 368 | return $row; |
| 369 | } |
| 370 | |
| 371 | /** |
| 372 | * Fetch a page record matching the Title object's namespace and title |
| 373 | * using a sanitized title string |
| 374 | * |
| 375 | * @param IReadableDatabase $dbr |
| 376 | * @param Title $title |
| 377 | * @param int $recency |
| 378 | * @return stdClass|false Database result resource, or false on failure |
| 379 | */ |
| 380 | public function pageDataFromTitle( $dbr, $title, $recency = IDBAccessObject::READ_NORMAL ) { |
| 381 | if ( !$title->canExist() ) { |
| 382 | return false; |
| 383 | } |
| 384 | $options = []; |
| 385 | if ( ( $recency & IDBAccessObject::READ_EXCLUSIVE ) == IDBAccessObject::READ_EXCLUSIVE ) { |
| 386 | $options[] = 'FOR UPDATE'; |
| 387 | } elseif ( ( $recency & IDBAccessObject::READ_LOCKING ) == IDBAccessObject::READ_LOCKING ) { |
| 388 | $options[] = 'LOCK IN SHARE MODE'; |
| 389 | } |
| 390 | |
| 391 | return $this->pageData( $dbr, [ |
| 392 | 'page_namespace' => $title->getNamespace(), |
| 393 | 'page_title' => $title->getDBkey() ], $options ); |
| 394 | } |
| 395 | |
| 396 | /** |
| 397 | * Fetch a page record matching the requested ID |
| 398 | * |
| 399 | * @param IReadableDatabase $dbr |
| 400 | * @param int $id |
| 401 | * @param array $options |
| 402 | * @return stdClass|false Database result resource, or false on failure |
| 403 | */ |
| 404 | public function pageDataFromId( $dbr, $id, $options = [] ) { |
| 405 | return $this->pageData( $dbr, [ 'page_id' => $id ], $options ); |
| 406 | } |
| 407 | |
| 408 | /** |
| 409 | * Load the object from a given source by title |
| 410 | * |
| 411 | * @param stdClass|string|int $from One of the following: |
| 412 | * - A DB query result object. |
| 413 | * - "fromdb" or IDBAccessObject::READ_NORMAL to get from a replica DB. |
| 414 | * - "fromdbmaster" or IDBAccessObject::READ_LATEST to get from the primary DB. |
| 415 | * - "forupdate" or IDBAccessObject::READ_LOCKING to get from the primary DB |
| 416 | * using SELECT FOR UPDATE. |
| 417 | * |
| 418 | * @return void |
| 419 | */ |
| 420 | public function loadPageData( $from = 'fromdb' ) { |
| 421 | $from = self::convertSelectType( $from ); |
| 422 | if ( is_int( $from ) && $from <= $this->mDataLoadedFrom ) { |
| 423 | // We already have the data from the correct location, no need to load it twice. |
| 424 | return; |
| 425 | } |
| 426 | |
| 427 | if ( is_int( $from ) ) { |
| 428 | $loadBalancer = $this->getDBLoadBalancer(); |
| 429 | if ( ( $from & IDBAccessObject::READ_LATEST ) == IDBAccessObject::READ_LATEST ) { |
| 430 | $index = DB_PRIMARY; |
| 431 | } else { |
| 432 | $index = DB_REPLICA; |
| 433 | } |
| 434 | $db = $loadBalancer->getConnection( $index ); |
| 435 | $data = $this->pageDataFromTitle( $db, $this->mTitle, $from ); |
| 436 | |
| 437 | if ( !$data |
| 438 | && $index == DB_REPLICA |
| 439 | && $loadBalancer->hasReplicaServers() |
| 440 | && $loadBalancer->hasOrMadeRecentPrimaryChanges() |
| 441 | ) { |
| 442 | $from = IDBAccessObject::READ_LATEST; |
| 443 | $db = $loadBalancer->getConnection( DB_PRIMARY ); |
| 444 | $data = $this->pageDataFromTitle( $db, $this->mTitle, $from ); |
| 445 | } |
| 446 | } else { |
| 447 | // No idea from where the caller got this data, assume replica DB. |
| 448 | $data = $from; |
| 449 | $from = IDBAccessObject::READ_NORMAL; |
| 450 | } |
| 451 | |
| 452 | $this->loadFromRow( $data, $from ); |
| 453 | } |
| 454 | |
| 455 | /** |
| 456 | * Checks whether the page data was loaded using the given database access mode (or better). |
| 457 | * |
| 458 | * @since 1.32 |
| 459 | * |
| 460 | * @param string|int $from One of the following: |
| 461 | * - "fromdb" or IDBAccessObject::READ_NORMAL to get from a replica DB. |
| 462 | * - "fromdbmaster" or IDBAccessObject::READ_LATEST to get from the primary DB. |
| 463 | * - "forupdate" or IDBAccessObject::READ_LOCKING to get from the primary DB |
| 464 | * using SELECT FOR UPDATE. |
| 465 | * |
| 466 | * @return bool |
| 467 | */ |
| 468 | public function wasLoadedFrom( $from ) { |
| 469 | $from = self::convertSelectType( $from ); |
| 470 | |
| 471 | if ( !is_int( $from ) ) { |
| 472 | // No idea from where the caller got this data, assume replica DB. |
| 473 | $from = IDBAccessObject::READ_NORMAL; |
| 474 | } |
| 475 | |
| 476 | if ( $from <= $this->mDataLoadedFrom ) { |
| 477 | return true; |
| 478 | } |
| 479 | |
| 480 | return false; |
| 481 | } |
| 482 | |
| 483 | /** |
| 484 | * Load the object from a database row |
| 485 | * |
| 486 | * @since 1.20 |
| 487 | * @param stdClass|false $data DB row containing fields returned by getQueryInfo() or false |
| 488 | * @param string|int $from One of the following: |
| 489 | * - "fromdb" or IDBAccessObject::READ_NORMAL if the data comes from a replica DB |
| 490 | * - "fromdbmaster" or IDBAccessObject::READ_LATEST if the data comes from the primary DB |
| 491 | * - "forupdate" or IDBAccessObject::READ_LOCKING if the data comes from |
| 492 | * the primary DB using SELECT FOR UPDATE |
| 493 | */ |
| 494 | public function loadFromRow( $data, $from ) { |
| 495 | $lc = MediaWikiServices::getInstance()->getLinkCache(); |
| 496 | $lc->clearLink( $this->mTitle ); |
| 497 | |
| 498 | if ( $data ) { |
| 499 | $lc->addGoodLinkObjFromRow( $this->mTitle, $data ); |
| 500 | |
| 501 | $this->mTitle->loadFromRow( $data ); |
| 502 | $this->mId = intval( $data->page_id ); |
| 503 | $this->mTouched = MWTimestamp::convert( TS_MW, $data->page_touched ); |
| 504 | $this->mLanguage = $data->page_lang ?? null; |
| 505 | $this->mLinksUpdated = $data->page_links_updated === null |
| 506 | ? null |
| 507 | : MWTimestamp::convert( TS_MW, $data->page_links_updated ); |
| 508 | $this->mPageIsRedirectField = (bool)$data->page_is_redirect; |
| 509 | $this->mIsNew = (bool)( $data->page_is_new ?? 0 ); |
| 510 | $this->mLatest = intval( $data->page_latest ); |
| 511 | // T39225: $latest may no longer match the cached latest RevisionRecord object. |
| 512 | // Double-check the ID of any cached latest RevisionRecord object for consistency. |
| 513 | if ( $this->mLastRevision && $this->mLastRevision->getId() != $this->mLatest ) { |
| 514 | $this->mLastRevision = null; |
| 515 | $this->mTimestamp = ''; |
| 516 | } |
| 517 | } else { |
| 518 | $lc->addBadLinkObj( $this->mTitle ); |
| 519 | |
| 520 | $this->mTitle->loadFromRow( false ); |
| 521 | |
| 522 | $this->clearCacheFields(); |
| 523 | |
| 524 | $this->mId = 0; |
| 525 | } |
| 526 | |
| 527 | $this->mDataLoaded = true; |
| 528 | $this->mDataLoadedFrom = self::convertSelectType( $from ); |
| 529 | } |
| 530 | |
| 531 | /** |
| 532 | * @param string|false $wikiId |
| 533 | * |
| 534 | * @return int Page ID |
| 535 | */ |
| 536 | public function getId( $wikiId = self::LOCAL ): int { |
| 537 | $this->assertWiki( $wikiId ); |
| 538 | |
| 539 | if ( !$this->mDataLoaded ) { |
| 540 | $this->loadPageData(); |
| 541 | } |
| 542 | return $this->mId; |
| 543 | } |
| 544 | |
| 545 | /** |
| 546 | * @return bool Whether or not the page exists in the database |
| 547 | */ |
| 548 | public function exists(): bool { |
| 549 | if ( !$this->mDataLoaded ) { |
| 550 | $this->loadPageData(); |
| 551 | } |
| 552 | return $this->mId > 0; |
| 553 | } |
| 554 | |
| 555 | /** |
| 556 | * Check if this page is something we're going to be showing |
| 557 | * some sort of sensible content for. If we return false, page |
| 558 | * views (plain action=view) will return an HTTP 404 response, |
| 559 | * so spiders and robots can know they're following a bad link. |
| 560 | * |
| 561 | * @return bool |
| 562 | */ |
| 563 | public function hasViewableContent() { |
| 564 | return $this->mTitle->isKnown(); |
| 565 | } |
| 566 | |
| 567 | /** |
| 568 | * Is the page a redirect, according to secondary tracking tables? |
| 569 | * If this is true, getRedirectTarget() will return a Title. |
| 570 | * |
| 571 | * @return bool |
| 572 | */ |
| 573 | public function isRedirect() { |
| 574 | $this->loadPageData(); |
| 575 | if ( $this->mPageIsRedirectField ) { |
| 576 | return MediaWikiServices::getInstance()->getRedirectLookup() |
| 577 | ->getRedirectTarget( $this->getTitle() ) !== null; |
| 578 | } |
| 579 | |
| 580 | return false; |
| 581 | } |
| 582 | |
| 583 | /** |
| 584 | * Tests if the page is new (only has one revision). |
| 585 | * May produce false negatives for some old pages. |
| 586 | * |
| 587 | * @since 1.36 |
| 588 | * |
| 589 | * @return bool |
| 590 | */ |
| 591 | public function isNew() { |
| 592 | if ( !$this->mDataLoaded ) { |
| 593 | $this->loadPageData(); |
| 594 | } |
| 595 | |
| 596 | return $this->mIsNew; |
| 597 | } |
| 598 | |
| 599 | /** |
| 600 | * Returns the page's content model id (see the CONTENT_MODEL_XXX constants). |
| 601 | * |
| 602 | * Will use the revisions actual content model if the page exists, |
| 603 | * and the page's default if the page doesn't exist yet. |
| 604 | * |
| 605 | * @return string |
| 606 | * |
| 607 | * @since 1.21 |
| 608 | */ |
| 609 | public function getContentModel() { |
| 610 | if ( $this->exists() ) { |
| 611 | $cache = MediaWikiServices::getInstance()->getMainWANObjectCache(); |
| 612 | |
| 613 | return $cache->getWithSetCallback( |
| 614 | $cache->makeKey( 'page-content-model', $this->getLatest() ), |
| 615 | $cache::TTL_MONTH, |
| 616 | function () { |
| 617 | $rev = $this->getRevisionRecord(); |
| 618 | if ( $rev ) { |
| 619 | // Look at the revision's actual content model |
| 620 | $slot = $rev->getSlot( |
| 621 | SlotRecord::MAIN, |
| 622 | RevisionRecord::RAW |
| 623 | ); |
| 624 | return $slot->getModel(); |
| 625 | } else { |
| 626 | LoggerFactory::getInstance( 'wikipage' )->warning( |
| 627 | 'Page exists but has no (visible) revisions!', |
| 628 | [ |
| 629 | 'page-title' => $this->mTitle->getPrefixedDBkey(), |
| 630 | 'page-id' => $this->getId(), |
| 631 | ] |
| 632 | ); |
| 633 | return $this->mTitle->getContentModel(); |
| 634 | } |
| 635 | }, |
| 636 | [ 'pcTTL' => $cache::TTL_PROC_LONG ] |
| 637 | ); |
| 638 | } |
| 639 | |
| 640 | // use the default model for this page |
| 641 | return $this->mTitle->getContentModel(); |
| 642 | } |
| 643 | |
| 644 | /** |
| 645 | * Loads page_touched and returns a value indicating if it should be used |
| 646 | * @return bool True if this page exists and is not a redirect |
| 647 | */ |
| 648 | public function checkTouched() { |
| 649 | return ( $this->exists() && !$this->isRedirect() ); |
| 650 | } |
| 651 | |
| 652 | /** |
| 653 | * Get the page_touched field |
| 654 | * @return string Timestamp in TS_MW format |
| 655 | */ |
| 656 | public function getTouched() { |
| 657 | if ( !$this->mDataLoaded ) { |
| 658 | $this->loadPageData(); |
| 659 | } |
| 660 | return $this->mTouched; |
| 661 | } |
| 662 | |
| 663 | /** |
| 664 | * @return ?string language code for the page |
| 665 | */ |
| 666 | public function getLanguage() { |
| 667 | if ( !$this->mDataLoaded ) { |
| 668 | $this->loadLastEdit(); |
| 669 | } |
| 670 | |
| 671 | return $this->mLanguage; |
| 672 | } |
| 673 | |
| 674 | /** |
| 675 | * Get the page_links_updated field |
| 676 | * @return string|null Timestamp in TS_MW format |
| 677 | */ |
| 678 | public function getLinksTimestamp() { |
| 679 | if ( !$this->mDataLoaded ) { |
| 680 | $this->loadPageData(); |
| 681 | } |
| 682 | return $this->mLinksUpdated; |
| 683 | } |
| 684 | |
| 685 | /** |
| 686 | * Get the page_latest field |
| 687 | * @param string|false $wikiId |
| 688 | * @return int The rev_id of current revision |
| 689 | */ |
| 690 | public function getLatest( $wikiId = self::LOCAL ) { |
| 691 | $this->assertWiki( $wikiId ); |
| 692 | |
| 693 | if ( !$this->mDataLoaded ) { |
| 694 | $this->loadPageData(); |
| 695 | } |
| 696 | return (int)$this->mLatest; |
| 697 | } |
| 698 | |
| 699 | /** |
| 700 | * Loads everything except the text |
| 701 | * This isn't necessary for all uses, so it's only done if needed. |
| 702 | */ |
| 703 | protected function loadLastEdit() { |
| 704 | if ( $this->mLastRevision !== null ) { |
| 705 | return; // already loaded |
| 706 | } |
| 707 | |
| 708 | $latest = $this->getLatest(); |
| 709 | if ( !$latest ) { |
| 710 | return; // page doesn't exist or is missing page_latest info |
| 711 | } |
| 712 | |
| 713 | if ( $this->mDataLoadedFrom == IDBAccessObject::READ_LOCKING ) { |
| 714 | // T39225: if session S1 loads the page row FOR UPDATE, the result always |
| 715 | // includes the latest changes committed. This is true even within REPEATABLE-READ |
| 716 | // transactions, where S1 normally only sees changes committed before the first S1 |
| 717 | // SELECT. Thus we need S1 to also gets the revision row FOR UPDATE; otherwise, it |
| 718 | // may not find it since a page row UPDATE and revision row INSERT by S2 may have |
| 719 | // happened after the first S1 SELECT. |
| 720 | // https://dev.mysql.com/doc/refman/5.7/en/set-transaction.html#isolevel_repeatable-read |
| 721 | $revision = $this->getRevisionStore() |
| 722 | ->getRevisionByPageId( $this->getId(), $latest, IDBAccessObject::READ_LOCKING ); |
| 723 | } elseif ( $this->mDataLoadedFrom == IDBAccessObject::READ_LATEST ) { |
| 724 | // Bug T93976: if page_latest was loaded from the primary DB, fetch the |
| 725 | // revision from there as well, as it may not exist yet on a replica DB. |
| 726 | // Also, this keeps the queries in the same REPEATABLE-READ snapshot. |
| 727 | $revision = $this->getRevisionStore() |
| 728 | ->getRevisionByPageId( $this->getId(), $latest, IDBAccessObject::READ_LATEST ); |
| 729 | } else { |
| 730 | $revision = $this->getRevisionStore()->getKnownCurrentRevision( $this->getTitle(), $latest ); |
| 731 | } |
| 732 | |
| 733 | if ( $revision ) { |
| 734 | $this->setLastEdit( $revision ); |
| 735 | } |
| 736 | } |
| 737 | |
| 738 | /** |
| 739 | * Set the latest revision |
| 740 | */ |
| 741 | private function setLastEdit( RevisionRecord $revRecord ) { |
| 742 | $this->mLastRevision = $revRecord; |
| 743 | $this->mLatest = $revRecord->getId(); |
| 744 | $this->mTimestamp = $revRecord->getTimestamp(); |
| 745 | $this->mTouched = max( $this->mTouched, $revRecord->getTimestamp() ); |
| 746 | } |
| 747 | |
| 748 | /** |
| 749 | * Get the latest revision |
| 750 | * @since 1.32 |
| 751 | * @return RevisionRecord|null |
| 752 | */ |
| 753 | public function getRevisionRecord() { |
| 754 | $this->loadLastEdit(); |
| 755 | return $this->mLastRevision; |
| 756 | } |
| 757 | |
| 758 | /** |
| 759 | * Get the content of the current revision. No side-effects... |
| 760 | * |
| 761 | * @param int $audience One of: |
| 762 | * RevisionRecord::FOR_PUBLIC to be displayed to all users |
| 763 | * RevisionRecord::FOR_THIS_USER to be displayed to the given user |
| 764 | * RevisionRecord::RAW get the text regardless of permissions |
| 765 | * @param Authority|null $performer object to check for, only if FOR_THIS_USER is passed |
| 766 | * to the $audience parameter |
| 767 | * @return Content|null The content of the current revision |
| 768 | * |
| 769 | * @since 1.21 |
| 770 | */ |
| 771 | public function getContent( $audience = RevisionRecord::FOR_PUBLIC, ?Authority $performer = null ) { |
| 772 | $this->loadLastEdit(); |
| 773 | if ( $this->mLastRevision ) { |
| 774 | return $this->mLastRevision->getContent( SlotRecord::MAIN, $audience, $performer ); |
| 775 | } |
| 776 | return null; |
| 777 | } |
| 778 | |
| 779 | /** |
| 780 | * @return string MW timestamp of last article revision |
| 781 | */ |
| 782 | public function getTimestamp() { |
| 783 | // Check if the field has been filled by WikiPage::setTimestamp() |
| 784 | if ( !$this->mTimestamp ) { |
| 785 | $this->loadLastEdit(); |
| 786 | } |
| 787 | |
| 788 | return MWTimestamp::convert( TS_MW, $this->mTimestamp ); |
| 789 | } |
| 790 | |
| 791 | /** |
| 792 | * Set the page timestamp (use only to avoid DB queries) |
| 793 | * @param string $ts MW timestamp of last article revision |
| 794 | * @return void |
| 795 | */ |
| 796 | public function setTimestamp( $ts ) { |
| 797 | $this->mTimestamp = MWTimestamp::convert( TS_MW, $ts ); |
| 798 | } |
| 799 | |
| 800 | /** |
| 801 | * @param int $audience One of: |
| 802 | * RevisionRecord::FOR_PUBLIC to be displayed to all users |
| 803 | * RevisionRecord::FOR_THIS_USER to be displayed to the given user |
| 804 | * RevisionRecord::RAW get the text regardless of permissions |
| 805 | * @param Authority|null $performer object to check for, only if FOR_THIS_USER is passed |
| 806 | * to the $audience parameter (since 1.36, if using FOR_THIS_USER and not specifying |
| 807 | * a user no fallback is provided and the RevisionRecord method will throw an error) |
| 808 | * @return int User ID for the user that made the last article revision |
| 809 | */ |
| 810 | public function getUser( $audience = RevisionRecord::FOR_PUBLIC, ?Authority $performer = null ) { |
| 811 | $this->loadLastEdit(); |
| 812 | if ( $this->mLastRevision ) { |
| 813 | $revUser = $this->mLastRevision->getUser( $audience, $performer ); |
| 814 | return $revUser ? $revUser->getId() : 0; |
| 815 | } else { |
| 816 | return -1; |
| 817 | } |
| 818 | } |
| 819 | |
| 820 | /** |
| 821 | * Get the User object of the user who created the page |
| 822 | * @param int $audience One of: |
| 823 | * RevisionRecord::FOR_PUBLIC to be displayed to all users |
| 824 | * RevisionRecord::FOR_THIS_USER to be displayed to the given user |
| 825 | * RevisionRecord::RAW get the text regardless of permissions |
| 826 | * @param Authority|null $performer object to check for, only if FOR_THIS_USER is passed |
| 827 | * to the $audience parameter (since 1.36, if using FOR_THIS_USER and not specifying |
| 828 | * a user no fallback is provided and the RevisionRecord method will throw an error) |
| 829 | * @return UserIdentity|null |
| 830 | */ |
| 831 | public function getCreator( $audience = RevisionRecord::FOR_PUBLIC, ?Authority $performer = null ) { |
| 832 | $revRecord = $this->getRevisionStore()->getFirstRevision( $this->getTitle() ); |
| 833 | if ( $revRecord ) { |
| 834 | return $revRecord->getUser( $audience, $performer ); |
| 835 | } else { |
| 836 | return null; |
| 837 | } |
| 838 | } |
| 839 | |
| 840 | /** |
| 841 | * @param int $audience One of: |
| 842 | * RevisionRecord::FOR_PUBLIC to be displayed to all users |
| 843 | * RevisionRecord::FOR_THIS_USER to be displayed to the given user |
| 844 | * RevisionRecord::RAW get the text regardless of permissions |
| 845 | * @param Authority|null $performer object to check for, only if FOR_THIS_USER is passed |
| 846 | * to the $audience parameter (since 1.36, if using FOR_THIS_USER and not specifying |
| 847 | * a user no fallback is provided and the RevisionRecord method will throw an error) |
| 848 | * @return string Username of the user that made the last article revision |
| 849 | */ |
| 850 | public function getUserText( $audience = RevisionRecord::FOR_PUBLIC, ?Authority $performer = null ) { |
| 851 | $this->loadLastEdit(); |
| 852 | if ( $this->mLastRevision ) { |
| 853 | $revUser = $this->mLastRevision->getUser( $audience, $performer ); |
| 854 | return $revUser ? $revUser->getName() : ''; |
| 855 | } else { |
| 856 | return ''; |
| 857 | } |
| 858 | } |
| 859 | |
| 860 | /** |
| 861 | * @param int $audience One of: |
| 862 | * RevisionRecord::FOR_PUBLIC to be displayed to all users |
| 863 | * RevisionRecord::FOR_THIS_USER to be displayed to the given user |
| 864 | * RevisionRecord::RAW get the text regardless of permissions |
| 865 | * @param Authority|null $performer object to check for, only if FOR_THIS_USER is passed |
| 866 | * to the $audience parameter (since 1.36, if using FOR_THIS_USER and not specifying |
| 867 | * a user no fallback is provided and the RevisionRecord method will throw an error) |
| 868 | * @return string|null Comment stored for the last article revision, or null if the specified |
| 869 | * audience does not have access to the comment. |
| 870 | */ |
| 871 | public function getComment( $audience = RevisionRecord::FOR_PUBLIC, ?Authority $performer = null ) { |
| 872 | $this->loadLastEdit(); |
| 873 | if ( $this->mLastRevision ) { |
| 874 | $revComment = $this->mLastRevision->getComment( $audience, $performer ); |
| 875 | return $revComment ? $revComment->text : ''; |
| 876 | } else { |
| 877 | return ''; |
| 878 | } |
| 879 | } |
| 880 | |
| 881 | /** |
| 882 | * Returns true if last revision was marked as "minor edit" |
| 883 | * |
| 884 | * @return bool Minor edit indicator for the last article revision. |
| 885 | */ |
| 886 | public function getMinorEdit() { |
| 887 | $this->loadLastEdit(); |
| 888 | if ( $this->mLastRevision ) { |
| 889 | return $this->mLastRevision->isMinor(); |
| 890 | } else { |
| 891 | return false; |
| 892 | } |
| 893 | } |
| 894 | |
| 895 | /** |
| 896 | * Whether the page may count towards the the site's number of "articles". |
| 897 | * |
| 898 | * This is tracked in the `site_stats` table, and calculated based on the |
| 899 | * namespace, page metadata, and content. |
| 900 | * |
| 901 | * @see $wgArticleCountMethod |
| 902 | * @see SlotRoleHandler::supportsArticleCount |
| 903 | * @see Content::isCountable |
| 904 | * @see WikitextContent::isCountable |
| 905 | * @param PreparedEdit|PreparedUpdate|false $editInfo (false): |
| 906 | * An object returned by prepareTextForEdit() or getCurrentUpdate() respectively; |
| 907 | * If false is given, the current database state will be used. |
| 908 | * |
| 909 | * @return bool |
| 910 | */ |
| 911 | public function isCountable( $editInfo = false ) { |
| 912 | $mwServices = MediaWikiServices::getInstance(); |
| 913 | $articleCountMethod = $mwServices->getMainConfig()->get( MainConfigNames::ArticleCountMethod ); |
| 914 | |
| 915 | // NOTE: Keep in sync with DerivedPageDataUpdater::isCountable. |
| 916 | |
| 917 | if ( !$this->mTitle->isContentPage() ) { |
| 918 | return false; |
| 919 | } |
| 920 | |
| 921 | if ( $editInfo instanceof PreparedEdit ) { |
| 922 | // NOTE: only the main slot can make a page a redirect |
| 923 | $content = $editInfo->pstContent; |
| 924 | } elseif ( $editInfo instanceof PreparedUpdate ) { |
| 925 | // NOTE: only the main slot can make a page a redirect |
| 926 | $content = $editInfo->getRawContent( SlotRecord::MAIN ); |
| 927 | } else { |
| 928 | $content = $this->getContent(); |
| 929 | } |
| 930 | |
| 931 | if ( !$content || $content->isRedirect() ) { |
| 932 | return false; |
| 933 | } |
| 934 | |
| 935 | $hasLinks = null; |
| 936 | |
| 937 | if ( $articleCountMethod === 'link' ) { |
| 938 | // nasty special case to avoid re-parsing to detect links |
| 939 | |
| 940 | if ( $editInfo ) { |
| 941 | $hasLinks = $editInfo->output->hasLinks(); |
| 942 | } else { |
| 943 | // NOTE: keep in sync with RevisionRenderer::getLinkCount |
| 944 | // NOTE: keep in sync with DerivedPageDataUpdater::isCountable |
| 945 | $dbr = $mwServices->getConnectionProvider()->getReplicaDatabase(); |
| 946 | $hasLinks = (bool)$dbr->newSelectQueryBuilder() |
| 947 | ->select( '1' ) |
| 948 | ->from( 'pagelinks' ) |
| 949 | ->where( [ 'pl_from' => $this->getId() ] ) |
| 950 | ->caller( __METHOD__ )->fetchField(); |
| 951 | } |
| 952 | } |
| 953 | |
| 954 | // TODO: MCR: determine $hasLinks for each slot, and use that info |
| 955 | // with that slot's Content's isCountable method. That requires per- |
| 956 | // slot ParserOutput in the ParserCache, or per-slot info in the |
| 957 | // pagelinks table. |
| 958 | return $content->isCountable( $hasLinks ); |
| 959 | } |
| 960 | |
| 961 | /** |
| 962 | * If this page is a redirect, get its target |
| 963 | * |
| 964 | * The target will be fetched from the redirect table if possible. |
| 965 | * |
| 966 | * @deprecated since 1.38 Use RedirectLookup::getRedirectTarget() instead. |
| 967 | * |
| 968 | * @return Title|null Title object, or null if this page is not a redirect |
| 969 | */ |
| 970 | public function getRedirectTarget() { |
| 971 | $target = MediaWikiServices::getInstance()->getRedirectLookup()->getRedirectTarget( $this ); |
| 972 | return Title::castFromLinkTarget( $target ); |
| 973 | } |
| 974 | |
| 975 | /** |
| 976 | * Insert or update the redirect table entry for this page to indicate it redirects to $rt |
| 977 | * @deprecated since 1.43; use {@link RedirectStore::updateRedirectTarget()} instead. |
| 978 | * @param LinkTarget $rt Redirect target |
| 979 | * @param int|null $oldLatest Prior page_latest for check and set |
| 980 | * @return bool Success |
| 981 | */ |
| 982 | public function insertRedirectEntry( LinkTarget $rt, $oldLatest = null ) { |
| 983 | return MediaWikiServices::getInstance()->getRedirectStore() |
| 984 | ->updateRedirectTarget( $this, $rt ); |
| 985 | } |
| 986 | |
| 987 | /** |
| 988 | * Get the Title object or URL this page redirects to |
| 989 | * |
| 990 | * @return bool|Title|string False, Title of in-wiki target, or string with URL |
| 991 | */ |
| 992 | public function followRedirect() { |
| 993 | return $this->getRedirectURL( $this->getRedirectTarget() ); |
| 994 | } |
| 995 | |
| 996 | /** |
| 997 | * Get the Title object or URL to use for a redirect. We use Title |
| 998 | * objects for same-wiki, non-special redirects and URLs for everything |
| 999 | * else. |
| 1000 | * @param Title $rt Redirect target |
| 1001 | * @return Title|string|false False, Title object of local target, or string with URL |
| 1002 | */ |
| 1003 | public function getRedirectURL( $rt ) { |
| 1004 | if ( !$rt ) { |
| 1005 | return false; |
| 1006 | } |
| 1007 | |
| 1008 | if ( $rt->isExternal() ) { |
| 1009 | if ( $rt->isLocal() ) { |
| 1010 | // Offsite wikis need an HTTP redirect. |
| 1011 | // This can be hard to reverse and may produce loops, |
| 1012 | // so they may be disabled in the site configuration. |
| 1013 | $source = $this->mTitle->getFullURL( 'redirect=no' ); |
| 1014 | return $rt->getFullURL( [ 'rdfrom' => $source ] ); |
| 1015 | } else { |
| 1016 | // External pages without "local" bit set are not valid |
| 1017 | // redirect targets |
| 1018 | return false; |
| 1019 | } |
| 1020 | } |
| 1021 | |
| 1022 | if ( $rt->isSpecialPage() ) { |
| 1023 | // Gotta handle redirects to special pages differently: |
| 1024 | // Fill the HTTP response "Location" header and ignore the rest of the page we're on. |
| 1025 | // Some pages are not valid targets. |
| 1026 | if ( $rt->isValidRedirectTarget() ) { |
| 1027 | return $rt->getFullURL(); |
| 1028 | } else { |
| 1029 | return false; |
| 1030 | } |
| 1031 | } elseif ( !$rt->isValidRedirectTarget() ) { |
| 1032 | // We somehow got a bad redirect target into the database (T278367) |
| 1033 | return false; |
| 1034 | } |
| 1035 | |
| 1036 | return $rt; |
| 1037 | } |
| 1038 | |
| 1039 | /** |
| 1040 | * Get a list of users who have edited this article, not including the user who made |
| 1041 | * the most recent revision, which you can get from $article->getUser() if you want it |
| 1042 | * @return UserArray |
| 1043 | */ |
| 1044 | public function getContributors() { |
| 1045 | // @todo: This is expensive; cache this info somewhere. |
| 1046 | |
| 1047 | $services = MediaWikiServices::getInstance(); |
| 1048 | $dbr = $services->getConnectionProvider()->getReplicaDatabase(); |
| 1049 | $actorNormalization = $services->getActorNormalization(); |
| 1050 | $userIdentityLookup = $services->getUserIdentityLookup(); |
| 1051 | |
| 1052 | $user = $this->getUser() |
| 1053 | ? User::newFromId( $this->getUser() ) |
| 1054 | : User::newFromName( $this->getUserText(), false ); |
| 1055 | |
| 1056 | $res = $dbr->newSelectQueryBuilder() |
| 1057 | ->select( [ |
| 1058 | 'user_id' => 'actor_user', |
| 1059 | 'user_name' => 'actor_name', |
| 1060 | 'actor_id' => 'MIN(rev_actor)', |
| 1061 | 'user_real_name' => 'MIN(user_real_name)', |
| 1062 | 'timestamp' => 'MAX(rev_timestamp)', |
| 1063 | ] ) |
| 1064 | ->from( 'revision' ) |
| 1065 | ->join( 'actor', null, 'rev_actor = actor_id' ) |
| 1066 | ->leftJoin( 'user', null, 'actor_user = user_id' ) |
| 1067 | ->where( [ |
| 1068 | 'rev_page' => $this->getId(), |
| 1069 | // The user who made the top revision gets credited as "this page was last edited by |
| 1070 | // John, based on contributions by Tom, Dick and Harry", so don't include them twice. |
| 1071 | $dbr->expr( 'rev_actor', '!=', $actorNormalization->findActorId( $user, $dbr ) ), |
| 1072 | // Username hidden? |
| 1073 | $dbr->bitAnd( 'rev_deleted', RevisionRecord::DELETED_USER ) . ' = 0', |
| 1074 | ] ) |
| 1075 | ->groupBy( [ 'actor_user', 'actor_name' ] ) |
| 1076 | ->orderBy( 'timestamp', SelectQueryBuilder::SORT_DESC ) |
| 1077 | ->caller( __METHOD__ ) |
| 1078 | ->fetchResultSet(); |
| 1079 | return new UserArrayFromResult( $res ); |
| 1080 | } |
| 1081 | |
| 1082 | /** |
| 1083 | * Should the parser cache be used? |
| 1084 | * |
| 1085 | * @param ParserOptions $parserOptions ParserOptions to check |
| 1086 | * @param int $oldId |
| 1087 | * @return bool |
| 1088 | */ |
| 1089 | public function shouldCheckParserCache( ParserOptions $parserOptions, $oldId ) { |
| 1090 | // NOTE: Keep in sync with ParserOutputAccess::shouldUseCache(). |
| 1091 | // TODO: Once ParserOutputAccess is stable, deprecated this method. |
| 1092 | return $this->exists() |
| 1093 | && ( $oldId === null || $oldId === 0 || $oldId === $this->getLatest() ) |
| 1094 | && $this->getContentHandler()->isParserCacheSupported(); |
| 1095 | } |
| 1096 | |
| 1097 | /** |
| 1098 | * Get a ParserOutput for the given ParserOptions and revision ID. |
| 1099 | * |
| 1100 | * The parser cache will be used if possible. Cache misses that result |
| 1101 | * in parser runs are debounced with PoolCounter. |
| 1102 | * |
| 1103 | * XXX merge this with updateParserCache()? |
| 1104 | * |
| 1105 | * @since 1.19 |
| 1106 | * @param ParserOptions|null $parserOptions ParserOptions to use for the parse operation |
| 1107 | * @param null|int $oldid Revision ID to get the text from, passing null or 0 will |
| 1108 | * get the current revision (default value) |
| 1109 | * @param bool $noCache Do not read from or write to caches. |
| 1110 | * @return ParserOutput|false ParserOutput or false if the revision was not found or is not public |
| 1111 | */ |
| 1112 | public function getParserOutput( |
| 1113 | ?ParserOptions $parserOptions = null, $oldid = null, $noCache = false |
| 1114 | ) { |
| 1115 | if ( $oldid ) { |
| 1116 | $revision = $this->getRevisionStore()->getRevisionByTitle( $this->getTitle(), $oldid ); |
| 1117 | |
| 1118 | if ( !$revision ) { |
| 1119 | return false; |
| 1120 | } |
| 1121 | } else { |
| 1122 | $revision = $this->getRevisionRecord(); |
| 1123 | } |
| 1124 | |
| 1125 | if ( !$parserOptions ) { |
| 1126 | $parserOptions = ParserOptions::newFromAnon(); |
| 1127 | } |
| 1128 | |
| 1129 | $options = $noCache ? ParserOutputAccess::OPT_NO_CACHE : 0; |
| 1130 | |
| 1131 | $status = MediaWikiServices::getInstance()->getParserOutputAccess()->getParserOutput( |
| 1132 | $this, $parserOptions, $revision, $options |
| 1133 | ); |
| 1134 | return $status->isOK() ? $status->getValue() : false; // convert null to false |
| 1135 | } |
| 1136 | |
| 1137 | /** |
| 1138 | * Do standard deferred updates after page view (existing or missing page) |
| 1139 | * @param Authority $performer The viewing user |
| 1140 | * @param int $oldid Revision id being viewed; if not given or 0, latest revision is assumed |
| 1141 | * @param RevisionRecord|null $oldRev The RevisionRecord associated with $oldid. |
| 1142 | */ |
| 1143 | public function doViewUpdates( |
| 1144 | Authority $performer, |
| 1145 | $oldid = 0, |
| 1146 | ?RevisionRecord $oldRev = null |
| 1147 | ) { |
| 1148 | if ( MediaWikiServices::getInstance()->getReadOnlyMode()->isReadOnly() ) { |
| 1149 | return; |
| 1150 | } |
| 1151 | |
| 1152 | DeferredUpdates::addCallableUpdate( |
| 1153 | function () use ( $performer ) { |
| 1154 | // In practice, these hook handlers simply debounce into a post-send |
| 1155 | // to do their work since none of the use cases for this hook require |
| 1156 | // a blocking pre-send callback. |
| 1157 | // |
| 1158 | // TODO: Move this hook to post-send. |
| 1159 | // |
| 1160 | // For now, it is unofficially possible for an extension to use |
| 1161 | // onPageViewUpdates to try to insert JavaScript via global $wgOut. |
| 1162 | // This isn't supported (the hook doesn't pass OutputPage), and |
| 1163 | // can't be since OutputPage may be disabled or replaced on some |
| 1164 | // pages that we do support page view updates for. We also run |
| 1165 | // this hook after HTMLFileCache, which also naturally can't |
| 1166 | // support modifying OutputPage. Handlers that modify the page |
| 1167 | // may use onBeforePageDisplay instead, which runs behind |
| 1168 | // HTMLFileCache and won't run on non-OutputPage responses. |
| 1169 | $legacyUser = MediaWikiServices::getInstance() |
| 1170 | ->getUserFactory() |
| 1171 | ->newFromAuthority( $performer ); |
| 1172 | $this->getHookRunner()->onPageViewUpdates( $this, $legacyUser ); |
| 1173 | }, |
| 1174 | DeferredUpdates::PRESEND |
| 1175 | ); |
| 1176 | |
| 1177 | // Update newtalk and watchlist notification status |
| 1178 | MediaWikiServices::getInstance() |
| 1179 | ->getWatchlistManager() |
| 1180 | ->clearTitleUserNotifications( $performer, $this, $oldid, $oldRev ); |
| 1181 | } |
| 1182 | |
| 1183 | /** |
| 1184 | * Perform the actions of a page purging |
| 1185 | * @return bool |
| 1186 | * @note In 1.28 (and only 1.28), this took a $flags parameter that |
| 1187 | * controlled how much purging was done. |
| 1188 | */ |
| 1189 | public function doPurge() { |
| 1190 | if ( !$this->getHookRunner()->onArticlePurge( $this ) ) { |
| 1191 | return false; |
| 1192 | } |
| 1193 | |
| 1194 | $this->mTitle->invalidateCache(); |
| 1195 | |
| 1196 | // Clear file cache and send purge after above page_touched update was committed |
| 1197 | $hcu = MediaWikiServices::getInstance()->getHtmlCacheUpdater(); |
| 1198 | $hcu->purgeTitleUrls( $this->mTitle, $hcu::PURGE_PRESEND ); |
| 1199 | |
| 1200 | if ( $this->mTitle->getNamespace() === NS_MEDIAWIKI ) { |
| 1201 | MediaWikiServices::getInstance()->getMessageCache() |
| 1202 | ->updateMessageOverride( $this->mTitle, $this->getContent() ); |
| 1203 | } |
| 1204 | InfoAction::invalidateCache( $this->mTitle, $this->getLatest() ); |
| 1205 | |
| 1206 | return true; |
| 1207 | } |
| 1208 | |
| 1209 | /** |
| 1210 | * Insert a new empty page record for this article. |
| 1211 | * This *must* be followed up by creating a revision |
| 1212 | * and running $this->updateRevisionOn( ... ); |
| 1213 | * or else the record will be left in a funky state. |
| 1214 | * Best if all done inside a transaction. |
| 1215 | * |
| 1216 | * @todo Factor out into a PageStore service, to be used by PageUpdater. |
| 1217 | * |
| 1218 | * @param IDatabase $dbw |
| 1219 | * @param int|null $pageId Custom page ID that will be used for the insert statement |
| 1220 | * |
| 1221 | * @return int|false The newly created page_id key; false if the row was not |
| 1222 | * inserted, e.g. because the title already existed or because the specified |
| 1223 | * page ID is already in use. |
| 1224 | */ |
| 1225 | public function insertOn( $dbw, $pageId = null ) { |
| 1226 | $pageIdForInsert = $pageId ? [ 'page_id' => $pageId ] : []; |
| 1227 | $dbw->newInsertQueryBuilder() |
| 1228 | ->insertInto( 'page' ) |
| 1229 | ->ignore() |
| 1230 | ->row( [ |
| 1231 | 'page_namespace' => $this->mTitle->getNamespace(), |
| 1232 | 'page_title' => $this->mTitle->getDBkey(), |
| 1233 | 'page_is_redirect' => 0, // Will set this shortly... |
| 1234 | 'page_is_new' => 1, |
| 1235 | 'page_random' => wfRandom(), |
| 1236 | 'page_touched' => $dbw->timestamp(), |
| 1237 | 'page_latest' => 0, // Fill this in shortly... |
| 1238 | 'page_len' => 0, // Fill this in shortly... |
| 1239 | ] + $pageIdForInsert ) |
| 1240 | ->caller( __METHOD__ )->execute(); |
| 1241 | |
| 1242 | if ( $dbw->affectedRows() > 0 ) { |
| 1243 | $newid = $pageId ? (int)$pageId : $dbw->insertId(); |
| 1244 | $this->mId = $newid; |
| 1245 | $this->mTitle->resetArticleID( $newid ); |
| 1246 | |
| 1247 | return $newid; |
| 1248 | } else { |
| 1249 | return false; // nothing changed |
| 1250 | } |
| 1251 | } |
| 1252 | |
| 1253 | /** |
| 1254 | * Update the page record to point to a newly saved revision. |
| 1255 | * |
| 1256 | * @todo Factor out into a PageStore service, or move into PageUpdater. |
| 1257 | * |
| 1258 | * @param IDatabase $dbw |
| 1259 | * @param RevisionRecord $revision For ID number, and text used to set |
| 1260 | * length and redirect status fields. |
| 1261 | * @param int|null $lastRevision If given, will not overwrite the page field |
| 1262 | * when different from the currently set value. |
| 1263 | * Giving 0 indicates the new page flag should be set on. |
| 1264 | * @param bool|null $lastRevIsRedirect If given, will optimize adding and |
| 1265 | * removing rows in redirect table. |
| 1266 | * @return bool Success; false if the page row was missing or page_latest changed |
| 1267 | */ |
| 1268 | public function updateRevisionOn( |
| 1269 | $dbw, |
| 1270 | RevisionRecord $revision, |
| 1271 | $lastRevision = null, |
| 1272 | $lastRevIsRedirect = null |
| 1273 | ) { |
| 1274 | // TODO: move into PageUpdater or PageStore |
| 1275 | // NOTE: when doing that, make sure cached fields get reset in doUserEditContent, |
| 1276 | // and in the compat stub! |
| 1277 | |
| 1278 | $revId = $revision->getId(); |
| 1279 | Assert::parameter( $revId > 0, '$revision->getId()', 'must be > 0' ); |
| 1280 | |
| 1281 | $content = $revision->getContent( SlotRecord::MAIN ); |
| 1282 | $len = $content ? $content->getSize() : 0; |
| 1283 | $rt = $content ? $content->getRedirectTarget() : null; |
| 1284 | $isNew = $lastRevision === 0; |
| 1285 | $isRedirect = $rt !== null; |
| 1286 | |
| 1287 | $conditions = [ 'page_id' => $this->getId() ]; |
| 1288 | |
| 1289 | if ( $lastRevision !== null ) { |
| 1290 | // An extra check against threads stepping on each other |
| 1291 | $conditions['page_latest'] = $lastRevision; |
| 1292 | } |
| 1293 | |
| 1294 | $model = $revision->getMainContentModel(); |
| 1295 | |
| 1296 | $row = [ /* SET */ |
| 1297 | 'page_latest' => $revId, |
| 1298 | 'page_touched' => $dbw->timestamp( $revision->getTimestamp() ), |
| 1299 | 'page_is_new' => $isNew ? 1 : 0, |
| 1300 | 'page_is_redirect' => $isRedirect ? 1 : 0, |
| 1301 | 'page_len' => $len, |
| 1302 | 'page_content_model' => $model, |
| 1303 | ]; |
| 1304 | |
| 1305 | $dbw->newUpdateQueryBuilder() |
| 1306 | ->update( 'page' ) |
| 1307 | ->set( $row ) |
| 1308 | ->where( $conditions ) |
| 1309 | ->caller( __METHOD__ )->execute(); |
| 1310 | |
| 1311 | $result = $dbw->affectedRows() > 0; |
| 1312 | if ( $result ) { |
| 1313 | $insertedRow = $this->pageData( $dbw, [ 'page_id' => $this->getId() ] ); |
| 1314 | |
| 1315 | if ( !$insertedRow ) { |
| 1316 | throw new RuntimeException( 'Failed to load freshly inserted row' ); |
| 1317 | } |
| 1318 | |
| 1319 | $this->mTitle->loadFromRow( $insertedRow ); |
| 1320 | MediaWikiServices::getInstance()->getRedirectStore() |
| 1321 | ->updateRedirectTarget( $this, $rt, $lastRevIsRedirect ); |
| 1322 | $this->setLastEdit( $revision ); |
| 1323 | $this->mPageIsRedirectField = (bool)$rt; |
| 1324 | $this->mIsNew = $isNew; |
| 1325 | |
| 1326 | // Update the LinkCache. |
| 1327 | $linkCache = MediaWikiServices::getInstance()->getLinkCache(); |
| 1328 | $linkCache->addGoodLinkObjFromRow( |
| 1329 | $this->mTitle, |
| 1330 | $insertedRow |
| 1331 | ); |
| 1332 | } |
| 1333 | |
| 1334 | return $result; |
| 1335 | } |
| 1336 | |
| 1337 | /** |
| 1338 | * Helper method for checking whether two revisions have differences that go |
| 1339 | * beyond the main slot. |
| 1340 | * |
| 1341 | * MCR migration note: this method should go away! |
| 1342 | * |
| 1343 | * @deprecated since 1.43; Use only as a stop-gap before refactoring to support MCR. |
| 1344 | * |
| 1345 | * @param RevisionRecord $a |
| 1346 | * @param RevisionRecord $b |
| 1347 | * @return bool |
| 1348 | */ |
| 1349 | public static function hasDifferencesOutsideMainSlot( RevisionRecord $a, RevisionRecord $b ) { |
| 1350 | $aSlots = $a->getSlots(); |
| 1351 | $bSlots = $b->getSlots(); |
| 1352 | $changedRoles = $aSlots->getRolesWithDifferentContent( $bSlots ); |
| 1353 | |
| 1354 | return ( $changedRoles !== [ SlotRecord::MAIN ] && $changedRoles !== [] ); |
| 1355 | } |
| 1356 | |
| 1357 | /** |
| 1358 | * Returns true if this page's content model supports sections. |
| 1359 | * |
| 1360 | * @return bool |
| 1361 | * |
| 1362 | * @todo The skin should check this and not offer section functionality if |
| 1363 | * sections are not supported. |
| 1364 | * @todo The EditPage should check this and not offer section functionality |
| 1365 | * if sections are not supported. |
| 1366 | */ |
| 1367 | public function supportsSections() { |
| 1368 | return $this->getContentHandler()->supportsSections(); |
| 1369 | } |
| 1370 | |
| 1371 | /** |
| 1372 | * @param string|int|null|false $sectionId Section identifier as a number or string |
| 1373 | * (e.g. 0, 1 or 'T-1'), null/false or an empty string for the whole page |
| 1374 | * or 'new' for a new section. |
| 1375 | * @param Content $sectionContent New content of the section. |
| 1376 | * @param string $sectionTitle New section's subject, only if $section is "new". |
| 1377 | * @param string $edittime Revision timestamp or null to use the current revision. |
| 1378 | * |
| 1379 | * @return Content|null New complete article content, or null if error. |
| 1380 | * |
| 1381 | * @since 1.21 |
| 1382 | * @deprecated since 1.24, use replaceSectionAtRev instead |
| 1383 | */ |
| 1384 | public function replaceSectionContent( |
| 1385 | $sectionId, Content $sectionContent, $sectionTitle = '', $edittime = null |
| 1386 | ) { |
| 1387 | $baseRevId = null; |
| 1388 | if ( $edittime && $sectionId !== 'new' ) { |
| 1389 | $lb = $this->getDBLoadBalancer(); |
| 1390 | $rev = $this->getRevisionStore()->getRevisionByTimestamp( $this->mTitle, $edittime ); |
| 1391 | // Try the primary database if this thread may have just added it. |
| 1392 | // The logic to fallback to the primary database if the replica is missing |
| 1393 | // the revision could be generalized into RevisionStore, but we don't want |
| 1394 | // to encourage loading of revisions by timestamp. |
| 1395 | if ( !$rev |
| 1396 | && $lb->hasReplicaServers() |
| 1397 | && $lb->hasOrMadeRecentPrimaryChanges() |
| 1398 | ) { |
| 1399 | $rev = $this->getRevisionStore()->getRevisionByTimestamp( |
| 1400 | $this->mTitle, $edittime, IDBAccessObject::READ_LATEST ); |
| 1401 | } |
| 1402 | if ( $rev ) { |
| 1403 | $baseRevId = $rev->getId(); |
| 1404 | } |
| 1405 | } |
| 1406 | |
| 1407 | return $this->replaceSectionAtRev( $sectionId, $sectionContent, $sectionTitle, $baseRevId ); |
| 1408 | } |
| 1409 | |
| 1410 | /** |
| 1411 | * @param string|int|null|false $sectionId Section identifier as a number or string |
| 1412 | * (e.g. 0, 1 or 'T-1'), null/false or an empty string for the whole page |
| 1413 | * or 'new' for a new section. |
| 1414 | * @param Content $sectionContent New content of the section. |
| 1415 | * @param string $sectionTitle New section's subject, only if $section is "new". |
| 1416 | * @param int|null $baseRevId |
| 1417 | * |
| 1418 | * @return Content|null New complete article content, or null if error. |
| 1419 | * |
| 1420 | * @since 1.24 |
| 1421 | */ |
| 1422 | public function replaceSectionAtRev( $sectionId, Content $sectionContent, |
| 1423 | $sectionTitle = '', $baseRevId = null |
| 1424 | ) { |
| 1425 | if ( strval( $sectionId ) === '' ) { |
| 1426 | // Whole-page edit; let the whole text through |
| 1427 | $newContent = $sectionContent; |
| 1428 | } else { |
| 1429 | if ( !$this->supportsSections() ) { |
| 1430 | throw new BadMethodCallException( "sections not supported for content model " . |
| 1431 | $this->getContentHandler()->getModelID() ); |
| 1432 | } |
| 1433 | |
| 1434 | // T32711: always use current version when adding a new section |
| 1435 | if ( $baseRevId === null || $sectionId === 'new' ) { |
| 1436 | $oldContent = $this->getContent(); |
| 1437 | } else { |
| 1438 | $revRecord = $this->getRevisionStore()->getRevisionById( $baseRevId ); |
| 1439 | if ( !$revRecord ) { |
| 1440 | wfDebug( __METHOD__ . " asked for bogus section (page: " . |
| 1441 | $this->getId() . "; section: $sectionId)" ); |
| 1442 | return null; |
| 1443 | } |
| 1444 | |
| 1445 | $oldContent = $revRecord->getContent( SlotRecord::MAIN ); |
| 1446 | } |
| 1447 | |
| 1448 | if ( !$oldContent ) { |
| 1449 | wfDebug( __METHOD__ . ": no page text" ); |
| 1450 | return null; |
| 1451 | } |
| 1452 | |
| 1453 | $newContent = $oldContent->replaceSection( $sectionId, $sectionContent, $sectionTitle ); |
| 1454 | } |
| 1455 | |
| 1456 | return $newContent; |
| 1457 | } |
| 1458 | |
| 1459 | /** |
| 1460 | * Check flags and add EDIT_NEW or EDIT_UPDATE to them as needed. |
| 1461 | * |
| 1462 | * @deprecated since 1.32, use exists() instead, or simply omit the EDIT_UPDATE |
| 1463 | * and EDIT_NEW flags. To protect against race conditions, use PageUpdater::grabParentRevision. |
| 1464 | * |
| 1465 | * @param int $flags |
| 1466 | * @return int Updated $flags |
| 1467 | */ |
| 1468 | public function checkFlags( $flags ) { |
| 1469 | if ( !( $flags & EDIT_NEW ) && !( $flags & EDIT_UPDATE ) ) { |
| 1470 | if ( $this->exists() ) { |
| 1471 | $flags |= EDIT_UPDATE; |
| 1472 | } else { |
| 1473 | $flags |= EDIT_NEW; |
| 1474 | } |
| 1475 | } |
| 1476 | |
| 1477 | return $flags; |
| 1478 | } |
| 1479 | |
| 1480 | /** |
| 1481 | * Returns a DerivedPageDataUpdater for use with the given target revision or new content. |
| 1482 | * This method attempts to re-use the same DerivedPageDataUpdater instance for subsequent calls. |
| 1483 | * The parameters passed to this method are used to ensure that the DerivedPageDataUpdater |
| 1484 | * returned matches that caller's expectations, allowing an existing instance to be re-used |
| 1485 | * if the given parameters match that instance's internal state according to |
| 1486 | * DerivedPageDataUpdater::isReusableFor(), and creating a new instance of the parameters do not |
| 1487 | * match the existing one. |
| 1488 | * |
| 1489 | * If neither $forRevision nor $forUpdate is given, a new DerivedPageDataUpdater is always |
| 1490 | * created, replacing any DerivedPageDataUpdater currently cached. |
| 1491 | * |
| 1492 | * MCR migration note: this replaces WikiPage::prepareContentForEdit. |
| 1493 | * |
| 1494 | * @since 1.32 |
| 1495 | * |
| 1496 | * @param UserIdentity|null $forUser The user that will be used for, or was used for, PST. |
| 1497 | * @param RevisionRecord|null $forRevision The revision created by the edit for which |
| 1498 | * to perform updates, if the edit was already saved. |
| 1499 | * @param RevisionSlotsUpdate|null $forUpdate The new content to be saved by the edit (pre PST), |
| 1500 | * if the edit was not yet saved. |
| 1501 | * @param bool $forEdit Only re-use if the cached DerivedPageDataUpdater has the current |
| 1502 | * revision as the edit's parent revision. This ensures that the same |
| 1503 | * DerivedPageDataUpdater cannot be re-used for two consecutive edits. |
| 1504 | * |
| 1505 | * @return DerivedPageDataUpdater |
| 1506 | */ |
| 1507 | private function getDerivedDataUpdater( |
| 1508 | ?UserIdentity $forUser = null, |
| 1509 | ?RevisionRecord $forRevision = null, |
| 1510 | ?RevisionSlotsUpdate $forUpdate = null, |
| 1511 | $forEdit = false |
| 1512 | ) { |
| 1513 | if ( !$forRevision && !$forUpdate ) { |
| 1514 | // NOTE: can't re-use an existing derivedDataUpdater if we don't know what the caller is |
| 1515 | // going to use it with. |
| 1516 | $this->derivedDataUpdater = null; |
| 1517 | } |
| 1518 | |
| 1519 | if ( $this->derivedDataUpdater && !$this->derivedDataUpdater->isContentPrepared() ) { |
| 1520 | // NOTE: can't re-use an existing derivedDataUpdater if other code that has a reference |
| 1521 | // to it did not yet initialize it, because we don't know what data it will be |
| 1522 | // initialized with. |
| 1523 | $this->derivedDataUpdater = null; |
| 1524 | } |
| 1525 | |
| 1526 | // XXX: It would be nice to have an LRU cache instead of trying to re-use a single instance. |
| 1527 | // However, there is no good way to construct a cache key. We'd need to check against all |
| 1528 | // cached instances. |
| 1529 | |
| 1530 | if ( $this->derivedDataUpdater |
| 1531 | && !$this->derivedDataUpdater->isReusableFor( |
| 1532 | $forUser, |
| 1533 | $forRevision, |
| 1534 | $forUpdate, |
| 1535 | $forEdit ? $this->getLatest() : null |
| 1536 | ) |
| 1537 | ) { |
| 1538 | $this->derivedDataUpdater = null; |
| 1539 | } |
| 1540 | |
| 1541 | if ( !$this->derivedDataUpdater ) { |
| 1542 | $this->derivedDataUpdater = |
| 1543 | $this->getPageUpdaterFactory()->newDerivedPageDataUpdater( $this ); |
| 1544 | } |
| 1545 | |
| 1546 | return $this->derivedDataUpdater; |
| 1547 | } |
| 1548 | |
| 1549 | /** |
| 1550 | * Change an existing article or create a new article. Updates RC and all necessary caches, |
| 1551 | * optionally via the deferred update array. |
| 1552 | * |
| 1553 | * @param Content $content New content |
| 1554 | * @param Authority $performer doing the edit |
| 1555 | * @param string|CommentStoreComment $summary Edit summary |
| 1556 | * @param int $flags Bitfield, see the EDIT_XXX constants such as EDIT_NEW |
| 1557 | * or EDIT_FORCE_BOT. |
| 1558 | * |
| 1559 | * If neither EDIT_NEW nor EDIT_UPDATE is specified, the status of the |
| 1560 | * article will be detected. If EDIT_UPDATE is specified and the article |
| 1561 | * doesn't exist, the function will return an edit-gone-missing error. If |
| 1562 | * EDIT_NEW is specified and the article does exist, an edit-already-exists |
| 1563 | * error will be returned. These two conditions are also possible with |
| 1564 | * auto-detection due to MediaWiki's performance-optimised locking strategy. |
| 1565 | * |
| 1566 | * @param int|false $originalRevId: The ID of an original revision that the edit |
| 1567 | * restores or repeats. The new revision is expected to have the exact same content as |
| 1568 | * the given original revision. This is used with rollbacks and with dummy "null" revisions |
| 1569 | * which are created to record things like page moves. Default is false, meaning we are not |
| 1570 | * making a rollback edit. |
| 1571 | * @param array|null $tags Change tags to apply to this edit |
| 1572 | * Callers are responsible for permission checks |
| 1573 | * (with ChangeTags::canAddTagsAccompanyingChange) |
| 1574 | * @param int $undidRevId Id of revision that was undone or 0 |
| 1575 | * |
| 1576 | * @return PageUpdateStatus Possible errors: |
| 1577 | * edit-hook-aborted: The ArticleSave hook aborted the edit but didn't |
| 1578 | * set the fatal flag of $status. |
| 1579 | * edit-gone-missing: In update mode, but the article didn't exist. |
| 1580 | * edit-conflict: In update mode, the article changed unexpectedly. |
| 1581 | * edit-no-change: Warning that the text was the same as before. |
| 1582 | * edit-already-exists: In creation mode, but the article already exists. |
| 1583 | * |
| 1584 | * Extensions may define additional errors. |
| 1585 | * |
| 1586 | * $return->value will contain an associative array with members as follows: |
| 1587 | * new: Boolean indicating if the function attempted to create a new article. |
| 1588 | * revision-record: The revision record object for the inserted revision, or null. |
| 1589 | * |
| 1590 | * @deprecated since 1.36, use PageUpdater::saveRevision instead. Note that the new method |
| 1591 | * expects callers to take care of checking EDIT_MINOR against the minoredit right, and to |
| 1592 | * apply the autopatrol right as appropriate. |
| 1593 | * |
| 1594 | * @since 1.36 |
| 1595 | */ |
| 1596 | public function doUserEditContent( |
| 1597 | Content $content, |
| 1598 | Authority $performer, |
| 1599 | $summary, |
| 1600 | $flags = 0, |
| 1601 | $originalRevId = false, |
| 1602 | $tags = [], |
| 1603 | $undidRevId = 0 |
| 1604 | ): PageUpdateStatus { |
| 1605 | $useNPPatrol = MediaWikiServices::getInstance()->getMainConfig()->get( |
| 1606 | MainConfigNames::UseNPPatrol ); |
| 1607 | $useRCPatrol = MediaWikiServices::getInstance()->getMainConfig()->get( |
| 1608 | MainConfigNames::UseRCPatrol ); |
| 1609 | if ( !( $summary instanceof CommentStoreComment ) ) { |
| 1610 | $summary = CommentStoreComment::newUnsavedComment( trim( $summary ) ); |
| 1611 | } |
| 1612 | |
| 1613 | // TODO: this check is here for backwards-compatibility with 1.31 behavior. |
| 1614 | // Checking the minoredit right should be done in the same place the 'bot' right is |
| 1615 | // checked for the EDIT_FORCE_BOT flag, which is currently in EditPage::attemptSave. |
| 1616 | if ( ( $flags & EDIT_MINOR ) && !$performer->isAllowed( 'minoredit' ) ) { |
| 1617 | $flags &= ~EDIT_MINOR; |
| 1618 | } |
| 1619 | |
| 1620 | $slotsUpdate = new RevisionSlotsUpdate(); |
| 1621 | $slotsUpdate->modifyContent( SlotRecord::MAIN, $content ); |
| 1622 | |
| 1623 | // NOTE: while doUserEditContent() executes, callbacks to getDerivedDataUpdater and |
| 1624 | // prepareContentForEdit will generally use the DerivedPageDataUpdater that is also |
| 1625 | // used by this PageUpdater. However, there is no guarantee for this. |
| 1626 | $updater = $this->newPageUpdater( $performer, $slotsUpdate ) |
| 1627 | ->setContent( SlotRecord::MAIN, $content ) |
| 1628 | ->setOriginalRevisionId( $originalRevId ); |
| 1629 | if ( $undidRevId ) { |
| 1630 | $updater->setCause( PageUpdateCauses::CAUSE_UNDO ); |
| 1631 | $updater->markAsRevert( |
| 1632 | EditResult::REVERT_UNDO, |
| 1633 | $undidRevId, |
| 1634 | $originalRevId ?: null |
| 1635 | ); |
| 1636 | } |
| 1637 | |
| 1638 | $needsPatrol = $useRCPatrol || ( $useNPPatrol && !$this->exists() ); |
| 1639 | |
| 1640 | // TODO: this logic should not be in the storage layer, it's here for compatibility |
| 1641 | // with 1.31 behavior. Applying the 'autopatrol' right should be done in the same |
| 1642 | // place the 'bot' right is handled, which is currently in EditPage::attemptSave. |
| 1643 | |
| 1644 | if ( $needsPatrol && $performer->authorizeWrite( 'autopatrol', $this->getTitle() ) ) { |
| 1645 | $updater->setRcPatrolStatus( RecentChange::PRC_AUTOPATROLLED ); |
| 1646 | } |
| 1647 | |
| 1648 | $updater->addTags( $tags ); |
| 1649 | |
| 1650 | $revRec = $updater->saveRevision( |
| 1651 | $summary, |
| 1652 | $flags |
| 1653 | ); |
| 1654 | |
| 1655 | // $revRec will be null if the edit failed, or if no new revision was created because |
| 1656 | // the content did not change. |
| 1657 | if ( $revRec ) { |
| 1658 | // update cached fields |
| 1659 | // TODO: this is currently redundant to what is done in updateRevisionOn. |
| 1660 | // But updateRevisionOn() should move into PageStore, and then this will be needed. |
| 1661 | $this->setLastEdit( $revRec ); |
| 1662 | } |
| 1663 | |
| 1664 | return $updater->getStatus(); |
| 1665 | } |
| 1666 | |
| 1667 | /** |
| 1668 | * Returns a PageUpdater for creating new revisions on this page (or creating the page). |
| 1669 | * |
| 1670 | * The PageUpdater can also be used to detect the need for edit conflict resolution, |
| 1671 | * and to protected such conflict resolution from concurrent edits using a check-and-set |
| 1672 | * mechanism. |
| 1673 | * |
| 1674 | * @since 1.32 |
| 1675 | * |
| 1676 | * @note Once extensions no longer rely on WikiPage to get access to the state of an ongoing |
| 1677 | * edit via prepareContentForEdit() and WikiPage::getCurrentUpdate(), |
| 1678 | * this method should be deprecated and callers should be migrated to using |
| 1679 | * PageUpdaterFactory::newPageUpdater() instead. |
| 1680 | * |
| 1681 | * @param Authority|UserIdentity $performer |
| 1682 | * @param RevisionSlotsUpdate|null $forUpdate If given, allows any cached ParserOutput |
| 1683 | * that may already have been returned via getDerivedDataUpdater to be re-used. |
| 1684 | * |
| 1685 | * @return PageUpdater |
| 1686 | */ |
| 1687 | public function newPageUpdater( $performer, ?RevisionSlotsUpdate $forUpdate = null ) { |
| 1688 | if ( $performer instanceof Authority ) { |
| 1689 | // TODO: Deprecate this. But better get rid of this method entirely. |
| 1690 | $performer = $performer->getUser(); |
| 1691 | } |
| 1692 | |
| 1693 | $pageUpdater = $this->getPageUpdaterFactory()->newPageUpdaterForDerivedPageDataUpdater( |
| 1694 | $this, |
| 1695 | $performer, |
| 1696 | $this->getDerivedDataUpdater( $performer, null, $forUpdate, true ) |
| 1697 | ); |
| 1698 | |
| 1699 | return $pageUpdater; |
| 1700 | } |
| 1701 | |
| 1702 | /** |
| 1703 | * Get parser options suitable for rendering the primary article wikitext |
| 1704 | * |
| 1705 | * @see ParserOptions::newCanonical |
| 1706 | * |
| 1707 | * @param IContextSource|UserIdentity|string $context One of the following: |
| 1708 | * - IContextSource: Use the User and the Language of the provided |
| 1709 | * context |
| 1710 | * - UserIdentity: Use the provided UserIdentity object and $wgLang |
| 1711 | * for the language, so use an IContextSource object if possible. |
| 1712 | * - 'canonical': Canonical options (anonymous user with default |
| 1713 | * preferences and content language). |
| 1714 | * @return ParserOptions |
| 1715 | */ |
| 1716 | public function makeParserOptions( $context ) { |
| 1717 | return self::makeParserOptionsFromTitleAndModel( |
| 1718 | $this->getTitle(), $this->getContentModel(), $context |
| 1719 | ); |
| 1720 | } |
| 1721 | |
| 1722 | /** |
| 1723 | * Create canonical parser options for a given title and content model. |
| 1724 | * @internal |
| 1725 | * @param PageReference $pageRef |
| 1726 | * @param string $contentModel |
| 1727 | * @param IContextSource|UserIdentity|string $context See ::makeParserOptions |
| 1728 | * @return ParserOptions |
| 1729 | */ |
| 1730 | public static function makeParserOptionsFromTitleAndModel( |
| 1731 | PageReference $pageRef, string $contentModel, $context |
| 1732 | ) { |
| 1733 | $options = ParserOptions::newCanonical( $context ); |
| 1734 | |
| 1735 | $title = Title::newFromPageReference( $pageRef ); |
| 1736 | if ( $title->isConversionTable() ) { |
| 1737 | // @todo ConversionTable should become a separate content model, so |
| 1738 | // we don't need special cases like this one, but see T313455. |
| 1739 | $options->disableContentConversion(); |
| 1740 | } |
| 1741 | |
| 1742 | return $options; |
| 1743 | } |
| 1744 | |
| 1745 | /** |
| 1746 | * Prepare content which is about to be saved. |
| 1747 | * |
| 1748 | * Prior to 1.30, this returned a stdClass. |
| 1749 | * |
| 1750 | * @deprecated since 1.32, use newPageUpdater() or getCurrentUpdate() instead. |
| 1751 | * @note Calling without a UserIdentity was separately deprecated from 1.37 to 1.39, since |
| 1752 | * 1.39 the UserIdentity has been required. |
| 1753 | * |
| 1754 | * @param Content $content |
| 1755 | * @param RevisionRecord|null $revision |
| 1756 | * Used with vary-revision or vary-revision-id. |
| 1757 | * @param UserIdentity $user |
| 1758 | * @param string|null $serialFormat IGNORED |
| 1759 | * @param bool $useStash Use prepared edit stash |
| 1760 | * |
| 1761 | * @return PreparedEdit |
| 1762 | * |
| 1763 | * @since 1.21 |
| 1764 | */ |
| 1765 | public function prepareContentForEdit( |
| 1766 | Content $content, |
| 1767 | ?RevisionRecord $revision, |
| 1768 | UserIdentity $user, |
| 1769 | $serialFormat = null, |
| 1770 | $useStash = true |
| 1771 | ) { |
| 1772 | $slots = RevisionSlotsUpdate::newFromContent( [ SlotRecord::MAIN => $content ] ); |
| 1773 | $updater = $this->getDerivedDataUpdater( $user, $revision, $slots ); |
| 1774 | |
| 1775 | if ( !$updater->isUpdatePrepared() ) { |
| 1776 | $updater->prepareContent( $user, $slots, $useStash ); |
| 1777 | |
| 1778 | if ( $revision ) { |
| 1779 | $updater->prepareUpdate( |
| 1780 | $revision, |
| 1781 | [ |
| 1782 | 'causeAction' => 'prepare-edit', |
| 1783 | 'causeAgent' => $user->getName(), |
| 1784 | ] |
| 1785 | ); |
| 1786 | } |
| 1787 | } |
| 1788 | |
| 1789 | return $updater->getPreparedEdit(); |
| 1790 | } |
| 1791 | |
| 1792 | /** |
| 1793 | * Do standard deferred updates after page edit. |
| 1794 | * Update links tables, site stats, search index and message cache. |
| 1795 | * Purges pages that include this page if the text was changed here. |
| 1796 | * Every 100th edit, prune the recent changes table. |
| 1797 | * |
| 1798 | * @deprecated since 1.32, use DerivedPageDataUpdater::doUpdates instead. |
| 1799 | * Emitting warnings since 1.44 |
| 1800 | * |
| 1801 | * @param RevisionRecord $revisionRecord (Switched from the old Revision class to |
| 1802 | * RevisionRecord since 1.35) |
| 1803 | * @param UserIdentity $user User object that did the revision |
| 1804 | * @param array $options Array of options, see DerivedPageDataUpdater::prepareUpdate. |
| 1805 | */ |
| 1806 | public function doEditUpdates( |
| 1807 | RevisionRecord $revisionRecord, |
| 1808 | UserIdentity $user, |
| 1809 | array $options = [] |
| 1810 | ) { |
| 1811 | wfDeprecated( __METHOD__, '1.32' ); // emitting warnings since 1.44 |
| 1812 | |
| 1813 | $options += [ |
| 1814 | 'causeAction' => 'edit-page', |
| 1815 | 'causeAgent' => $user->getName(), |
| 1816 | ]; |
| 1817 | |
| 1818 | $updater = $this->getDerivedDataUpdater( $user, $revisionRecord ); |
| 1819 | |
| 1820 | $updater->prepareUpdate( $revisionRecord, $options ); |
| 1821 | |
| 1822 | $updater->doUpdates(); |
| 1823 | } |
| 1824 | |
| 1825 | /** |
| 1826 | * Update the parser cache. |
| 1827 | * |
| 1828 | * @note This does not update links tables. Use doSecondaryDataUpdates() for that. |
| 1829 | * |
| 1830 | * @param array $options |
| 1831 | * - causeAction: an arbitrary string identifying the reason for the update. |
| 1832 | * See DataUpdate::getCauseAction(). (default 'edit-page') |
| 1833 | * - causeAgent: name of the user who caused the update (string, defaults to the |
| 1834 | * user who created the revision) |
| 1835 | * @since 1.32 |
| 1836 | */ |
| 1837 | public function updateParserCache( array $options = [] ) { |
| 1838 | $revision = $this->getRevisionRecord(); |
| 1839 | if ( !$revision || !$revision->getId() ) { |
| 1840 | LoggerFactory::getInstance( 'wikipage' )->info( |
| 1841 | __METHOD__ . ' called with ' . ( $revision ? 'unsaved' : 'no' ) . ' revision' |
| 1842 | ); |
| 1843 | return; |
| 1844 | } |
| 1845 | $userIdentity = $revision->getUser( RevisionRecord::RAW ); |
| 1846 | |
| 1847 | $updater = $this->getDerivedDataUpdater( $userIdentity, $revision ); |
| 1848 | $updater->prepareUpdate( $revision, $options ); |
| 1849 | $updater->doParserCacheUpdate(); |
| 1850 | } |
| 1851 | |
| 1852 | /** |
| 1853 | * Do secondary data updates (such as updating link tables). |
| 1854 | * Secondary data updates are only a small part of the updates needed after saving |
| 1855 | * a new revision; normally PageUpdater::doUpdates should be used instead (which includes |
| 1856 | * secondary data updates). This method is provided for partial purges. |
| 1857 | * |
| 1858 | * @note This does not update the parser cache. Use updateParserCache() for that. |
| 1859 | * |
| 1860 | * @param array $options |
| 1861 | * - recursive (bool, default true): whether to do a recursive update (update pages that |
| 1862 | * depend on this page, e.g. transclude it). This will set the $recursive parameter of |
| 1863 | * Content::getSecondaryDataUpdates. Typically this should be true unless the update |
| 1864 | * was something that did not really change the page, such as a null edit. |
| 1865 | * - triggeringUser: The user triggering the update (UserIdentity, defaults to the |
| 1866 | * user who created the revision) |
| 1867 | * - causeAction: an arbitrary string identifying the reason for the update. |
| 1868 | * See DataUpdate::getCauseAction(). (default 'unknown') |
| 1869 | * - causeAgent: name of the user who caused the update (string, default 'unknown') |
| 1870 | * - defer: one of the DeferredUpdates constants, or false to run immediately (default: false). |
| 1871 | * Note that even when this is set to false, some updates might still get deferred (as |
| 1872 | * some update might directly add child updates to DeferredUpdates). |
| 1873 | * - known-revision-output: a combined canonical ParserOutput for the revision, perhaps |
| 1874 | * from some cache. The caller is responsible for ensuring that the ParserOutput indeed |
| 1875 | * matched the $rev and $options. This mechanism is intended as a temporary stop-gap, |
| 1876 | * for the time until caches have been changed to store RenderedRevision states instead |
| 1877 | * of ParserOutput objects. (default: null) (since 1.33) |
| 1878 | * @since 1.32 |
| 1879 | */ |
| 1880 | public function doSecondaryDataUpdates( array $options = [] ) { |
| 1881 | $options['recursive'] ??= true; |
| 1882 | $revision = $this->getRevisionRecord(); |
| 1883 | if ( !$revision || !$revision->getId() ) { |
| 1884 | LoggerFactory::getInstance( 'wikipage' )->info( |
| 1885 | __METHOD__ . ' called with ' . ( $revision ? 'unsaved' : 'no' ) . ' revision' |
| 1886 | ); |
| 1887 | return; |
| 1888 | } |
| 1889 | $userIdentity = $revision->getUser( RevisionRecord::RAW ); |
| 1890 | |
| 1891 | $updater = $this->getDerivedDataUpdater( $userIdentity, $revision ); |
| 1892 | $updater->prepareUpdate( $revision, $options ); |
| 1893 | $updater->doSecondaryDataUpdates( $options ); |
| 1894 | } |
| 1895 | |
| 1896 | /** |
| 1897 | * Update the article's restriction field, and leave a log entry. |
| 1898 | * This works for protection both existing and non-existing pages. |
| 1899 | * |
| 1900 | * @param array $limit Set of restriction keys |
| 1901 | * @param array $expiry Per restriction type expiration |
| 1902 | * @param bool &$cascade Set to false if cascading protection isn't allowed. |
| 1903 | * @param string $reason |
| 1904 | * @param UserIdentity $user The user updating the restrictions |
| 1905 | * @param string[] $tags Change tags to add to the pages and protection log entries |
| 1906 | * ($user should be able to add the specified tags before this is called) |
| 1907 | * @return Status Status object; if action is taken, $status->value is the log_id of the |
| 1908 | * protection log entry. |
| 1909 | */ |
| 1910 | public function doUpdateRestrictions( array $limit, array $expiry, |
| 1911 | &$cascade, $reason, UserIdentity $user, $tags = [] |
| 1912 | ) { |
| 1913 | $services = MediaWikiServices::getInstance(); |
| 1914 | $readOnlyMode = $services->getReadOnlyMode(); |
| 1915 | if ( $readOnlyMode->isReadOnly() ) { |
| 1916 | return Status::newFatal( wfMessage( 'readonlytext', $readOnlyMode->getReason() ) ); |
| 1917 | } |
| 1918 | |
| 1919 | $this->loadPageData( 'fromdbmaster' ); |
| 1920 | $restrictionStore = $services->getRestrictionStore(); |
| 1921 | $restrictionStore->loadRestrictions( $this->mTitle, IDBAccessObject::READ_LATEST ); |
| 1922 | $restrictionTypes = $restrictionStore->listApplicableRestrictionTypes( $this->mTitle ); |
| 1923 | $id = $this->getId(); |
| 1924 | |
| 1925 | if ( !$cascade ) { |
| 1926 | $cascade = false; |
| 1927 | } |
| 1928 | |
| 1929 | // Take this opportunity to purge out expired restrictions |
| 1930 | Title::purgeExpiredRestrictions(); |
| 1931 | |
| 1932 | // @todo: Same limitations as described in ProtectionForm.php (line 37); |
| 1933 | // we expect a single selection, but the schema allows otherwise. |
| 1934 | $isProtected = false; |
| 1935 | $protect = false; |
| 1936 | $changed = false; |
| 1937 | |
| 1938 | $dbw = $services->getConnectionProvider()->getPrimaryDatabase(); |
| 1939 | |
| 1940 | foreach ( $restrictionTypes as $action ) { |
| 1941 | if ( !isset( $expiry[$action] ) || $expiry[$action] === $dbw->getInfinity() ) { |
| 1942 | $expiry[$action] = 'infinity'; |
| 1943 | } |
| 1944 | if ( !isset( $limit[$action] ) ) { |
| 1945 | $limit[$action] = ''; |
| 1946 | } elseif ( $limit[$action] != '' ) { |
| 1947 | $protect = true; |
| 1948 | } |
| 1949 | |
| 1950 | // Get current restrictions on $action |
| 1951 | $current = implode( '', $restrictionStore->getRestrictions( $this->mTitle, $action ) ); |
| 1952 | if ( $current != '' ) { |
| 1953 | $isProtected = true; |
| 1954 | } |
| 1955 | |
| 1956 | if ( $limit[$action] != $current ) { |
| 1957 | $changed = true; |
| 1958 | } elseif ( $limit[$action] != '' ) { |
| 1959 | // Only check expiry change if the action is actually being |
| 1960 | // protected, since expiry does nothing on an not-protected |
| 1961 | // action. |
| 1962 | if ( $restrictionStore->getRestrictionExpiry( $this->mTitle, $action ) != $expiry[$action] ) { |
| 1963 | $changed = true; |
| 1964 | } |
| 1965 | } |
| 1966 | } |
| 1967 | |
| 1968 | if ( !$changed && $protect && $restrictionStore->areRestrictionsCascading( $this->mTitle ) != $cascade ) { |
| 1969 | $changed = true; |
| 1970 | } |
| 1971 | |
| 1972 | // If nothing has changed, do nothing |
| 1973 | if ( !$changed ) { |
| 1974 | return Status::newGood(); |
| 1975 | } |
| 1976 | |
| 1977 | if ( !$protect ) { // No protection at all means unprotection |
| 1978 | $revCommentMsg = 'unprotectedarticle-comment'; |
| 1979 | $logAction = 'unprotect'; |
| 1980 | } elseif ( $isProtected ) { |
| 1981 | $revCommentMsg = 'modifiedarticleprotection-comment'; |
| 1982 | $logAction = 'modify'; |
| 1983 | } else { |
| 1984 | $revCommentMsg = 'protectedarticle-comment'; |
| 1985 | $logAction = 'protect'; |
| 1986 | } |
| 1987 | |
| 1988 | $logRelationsValues = []; |
| 1989 | $logRelationsField = null; |
| 1990 | $logParamsDetails = []; |
| 1991 | |
| 1992 | // Null revision (used for change tag insertion) |
| 1993 | $nullRevisionRecord = null; |
| 1994 | |
| 1995 | $legacyUser = $services->getUserFactory()->newFromUserIdentity( $user ); |
| 1996 | if ( !$this->getHookRunner()->onArticleProtect( $this, $legacyUser, $limit, $reason ) ) { |
| 1997 | return Status::newGood(); |
| 1998 | } |
| 1999 | |
| 2000 | if ( $id ) { // Protection of existing page |
| 2001 | // Only certain restrictions can cascade... |
| 2002 | $editrestriction = isset( $limit['edit'] ) |
| 2003 | ? [ $limit['edit'] ] |
| 2004 | : $restrictionStore->getRestrictions( $this->mTitle, 'edit' ); |
| 2005 | foreach ( array_keys( $editrestriction, 'sysop' ) as $key ) { |
| 2006 | $editrestriction[$key] = 'editprotected'; // backwards compatibility |
| 2007 | } |
| 2008 | foreach ( array_keys( $editrestriction, 'autoconfirmed' ) as $key ) { |
| 2009 | $editrestriction[$key] = 'editsemiprotected'; // backwards compatibility |
| 2010 | } |
| 2011 | |
| 2012 | $cascadingRestrictionLevels = $services->getMainConfig() |
| 2013 | ->get( MainConfigNames::CascadingRestrictionLevels ); |
| 2014 | |
| 2015 | foreach ( array_keys( $cascadingRestrictionLevels, 'sysop' ) as $key ) { |
| 2016 | $cascadingRestrictionLevels[$key] = 'editprotected'; // backwards compatibility |
| 2017 | } |
| 2018 | foreach ( array_keys( $cascadingRestrictionLevels, 'autoconfirmed' ) as $key ) { |
| 2019 | $cascadingRestrictionLevels[$key] = 'editsemiprotected'; // backwards compatibility |
| 2020 | } |
| 2021 | |
| 2022 | // The schema allows multiple restrictions |
| 2023 | if ( !array_intersect( $editrestriction, $cascadingRestrictionLevels ) ) { |
| 2024 | $cascade = false; |
| 2025 | } |
| 2026 | |
| 2027 | // insert dummy revision to identify the page protection change as edit summary |
| 2028 | $nullRevisionRecord = $this->insertNullProtectionRevision( |
| 2029 | $revCommentMsg, |
| 2030 | $limit, |
| 2031 | $expiry, |
| 2032 | $cascade, |
| 2033 | $reason, |
| 2034 | $user |
| 2035 | ); |
| 2036 | |
| 2037 | if ( $nullRevisionRecord === null ) { |
| 2038 | return Status::newFatal( 'no-null-revision', $this->mTitle->getPrefixedText() ); |
| 2039 | } |
| 2040 | |
| 2041 | $logRelationsField = 'pr_id'; |
| 2042 | |
| 2043 | // T214035: Avoid deadlock on MySQL. |
| 2044 | // Do a DELETE by primary key (pr_id) for any existing protection rows. |
| 2045 | // On MySQL and derivatives, unconditionally deleting by page ID (pr_page) would. |
| 2046 | // place a gap lock if there are no matching rows. This can deadlock when another |
| 2047 | // thread modifies protection settings for page IDs in the same gap. |
| 2048 | $existingProtectionIds = $dbw->newSelectQueryBuilder() |
| 2049 | ->select( 'pr_id' ) |
| 2050 | ->from( 'page_restrictions' ) |
| 2051 | ->where( [ 'pr_page' => $id, 'pr_type' => array_map( 'strval', array_keys( $limit ) ) ] ) |
| 2052 | ->caller( __METHOD__ )->fetchFieldValues(); |
| 2053 | |
| 2054 | if ( $existingProtectionIds ) { |
| 2055 | $dbw->newDeleteQueryBuilder() |
| 2056 | ->deleteFrom( 'page_restrictions' ) |
| 2057 | ->where( [ 'pr_id' => $existingProtectionIds ] ) |
| 2058 | ->caller( __METHOD__ )->execute(); |
| 2059 | } |
| 2060 | |
| 2061 | // Update restrictions table |
| 2062 | foreach ( $limit as $action => $restrictions ) { |
| 2063 | if ( $restrictions != '' ) { |
| 2064 | $cascadeValue = ( $cascade && $action == 'edit' ) ? 1 : 0; |
| 2065 | $dbw->newInsertQueryBuilder() |
| 2066 | ->insertInto( 'page_restrictions' ) |
| 2067 | ->row( [ |
| 2068 | 'pr_page' => $id, |
| 2069 | 'pr_type' => $action, |
| 2070 | 'pr_level' => $restrictions, |
| 2071 | 'pr_cascade' => $cascadeValue, |
| 2072 | 'pr_expiry' => $dbw->encodeExpiry( $expiry[$action] ) |
| 2073 | ] ) |
| 2074 | ->caller( __METHOD__ )->execute(); |
| 2075 | $logRelationsValues[] = $dbw->insertId(); |
| 2076 | $logParamsDetails[] = [ |
| 2077 | 'type' => $action, |
| 2078 | 'level' => $restrictions, |
| 2079 | 'expiry' => $expiry[$action], |
| 2080 | 'cascade' => (bool)$cascadeValue, |
| 2081 | ]; |
| 2082 | } |
| 2083 | } |
| 2084 | } else { // Protection of non-existing page (also known as "title protection") |
| 2085 | // Cascade protection is meaningless in this case |
| 2086 | $cascade = false; |
| 2087 | |
| 2088 | if ( $limit['create'] != '' ) { |
| 2089 | $commentFields = $services->getCommentStore()->insert( $dbw, 'pt_reason', $reason ); |
| 2090 | $dbw->newReplaceQueryBuilder() |
| 2091 | ->table( 'protected_titles' ) |
| 2092 | ->uniqueIndexFields( [ 'pt_namespace', 'pt_title' ] ) |
| 2093 | ->rows( [ |
| 2094 | 'pt_namespace' => $this->mTitle->getNamespace(), |
| 2095 | 'pt_title' => $this->mTitle->getDBkey(), |
| 2096 | 'pt_create_perm' => $limit['create'], |
| 2097 | 'pt_timestamp' => $dbw->timestamp(), |
| 2098 | 'pt_expiry' => $dbw->encodeExpiry( $expiry['create'] ), |
| 2099 | 'pt_user' => $user->getId(), |
| 2100 | ] + $commentFields ) |
| 2101 | ->caller( __METHOD__ )->execute(); |
| 2102 | $logParamsDetails[] = [ |
| 2103 | 'type' => 'create', |
| 2104 | 'level' => $limit['create'], |
| 2105 | 'expiry' => $expiry['create'], |
| 2106 | ]; |
| 2107 | } else { |
| 2108 | $dbw->newDeleteQueryBuilder() |
| 2109 | ->deleteFrom( 'protected_titles' ) |
| 2110 | ->where( [ |
| 2111 | 'pt_namespace' => $this->mTitle->getNamespace(), |
| 2112 | 'pt_title' => $this->mTitle->getDBkey() |
| 2113 | ] ) |
| 2114 | ->caller( __METHOD__ )->execute(); |
| 2115 | } |
| 2116 | } |
| 2117 | |
| 2118 | $this->getHookRunner()->onArticleProtectComplete( $this, $legacyUser, $limit, $reason ); |
| 2119 | |
| 2120 | $services->getRestrictionStore()->flushRestrictions( $this->mTitle ); |
| 2121 | |
| 2122 | InfoAction::invalidateCache( $this->mTitle ); |
| 2123 | |
| 2124 | if ( $logAction == 'unprotect' ) { |
| 2125 | $params = []; |
| 2126 | } else { |
| 2127 | $protectDescriptionLog = $this->protectDescriptionLog( $limit, $expiry ); |
| 2128 | $params = [ |
| 2129 | '4::description' => $protectDescriptionLog, // parameter for IRC |
| 2130 | '5:bool:cascade' => $cascade, |
| 2131 | 'details' => $logParamsDetails, // parameter for localize and api |
| 2132 | ]; |
| 2133 | } |
| 2134 | |
| 2135 | // Update the protection log |
| 2136 | $logEntry = new ManualLogEntry( 'protect', $logAction ); |
| 2137 | $logEntry->setTarget( $this->mTitle ); |
| 2138 | $logEntry->setComment( $reason ); |
| 2139 | $logEntry->setPerformer( $user ); |
| 2140 | $logEntry->setParameters( $params ); |
| 2141 | if ( $nullRevisionRecord !== null ) { |
| 2142 | $logEntry->setAssociatedRevId( $nullRevisionRecord->getId() ); |
| 2143 | } |
| 2144 | $logEntry->addTags( $tags ); |
| 2145 | if ( $logRelationsField !== null && count( $logRelationsValues ) ) { |
| 2146 | $logEntry->setRelations( [ $logRelationsField => $logRelationsValues ] ); |
| 2147 | } |
| 2148 | $logId = $logEntry->insert(); |
| 2149 | $logEntry->publish( $logId ); |
| 2150 | |
| 2151 | return Status::newGood( $logId ); |
| 2152 | } |
| 2153 | |
| 2154 | /** |
| 2155 | * Get the state of an ongoing update, shortly before or just after it is saved to the database. |
| 2156 | * If there is no ongoing edit tracked by this WikiPage instance, this methods throws a |
| 2157 | * PreconditionException. |
| 2158 | * |
| 2159 | * If possible, state is shared with subsequent calls of getPreparedUpdate(), |
| 2160 | * prepareContentForEdit(), and newPageUpdater(). |
| 2161 | * |
| 2162 | * @note This method should generally be avoided, since it forces WikiPage to maintain state |
| 2163 | * representing ongoing edits. Code that initiates an edit should use newPageUpdater() |
| 2164 | * instead. Hooks that interact with the edit should have a the relevant |
| 2165 | * information provided as a PageUpdater, PreparedUpdate, or RenderedRevision. |
| 2166 | * |
| 2167 | * @throws PreconditionException if there is no ongoing update. This method must only be |
| 2168 | * called after newPageUpdater() had already been called, typically while executing |
| 2169 | * a handler for a hook that is triggered during a page edit. |
| 2170 | * @return PreparedUpdate |
| 2171 | * |
| 2172 | * @since 1.38 |
| 2173 | */ |
| 2174 | public function getCurrentUpdate(): PreparedUpdate { |
| 2175 | Assert::precondition( |
| 2176 | $this->derivedDataUpdater !== null, |
| 2177 | 'There is no ongoing update tracked by this instance of WikiPage!' |
| 2178 | ); |
| 2179 | |
| 2180 | return $this->derivedDataUpdater; |
| 2181 | } |
| 2182 | |
| 2183 | /** |
| 2184 | * Insert a new dummy revision (aka null revision) for this page, |
| 2185 | * to mark a change in page protection. |
| 2186 | * |
| 2187 | * @since 1.35 |
| 2188 | * |
| 2189 | * @param string $revCommentMsg Comment message key for the revision |
| 2190 | * @param array $limit Set of restriction keys |
| 2191 | * @param array $expiry Per restriction type expiration |
| 2192 | * @param bool $cascade Set to false if cascading protection isn't allowed. |
| 2193 | * @param string $reason |
| 2194 | * @param UserIdentity $user User to attribute to |
| 2195 | * @return RevisionRecord|null Null on error |
| 2196 | */ |
| 2197 | public function insertNullProtectionRevision( |
| 2198 | string $revCommentMsg, |
| 2199 | array $limit, |
| 2200 | array $expiry, |
| 2201 | bool $cascade, |
| 2202 | string $reason, |
| 2203 | UserIdentity $user |
| 2204 | ): ?RevisionRecord { |
| 2205 | // Prepare a null revision to be added to the history |
| 2206 | $editComment = wfMessage( |
| 2207 | $revCommentMsg, |
| 2208 | $this->mTitle->getPrefixedText(), |
| 2209 | $user->getName() |
| 2210 | )->inContentLanguage()->text(); |
| 2211 | if ( $reason ) { |
| 2212 | $editComment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() . $reason; |
| 2213 | } |
| 2214 | $protectDescription = $this->protectDescription( $limit, $expiry ); |
| 2215 | if ( $protectDescription ) { |
| 2216 | $editComment .= wfMessage( 'word-separator' )->inContentLanguage()->text(); |
| 2217 | $editComment .= wfMessage( 'parentheses' )->params( $protectDescription ) |
| 2218 | ->inContentLanguage()->text(); |
| 2219 | } |
| 2220 | if ( $cascade ) { |
| 2221 | $editComment .= wfMessage( 'word-separator' )->inContentLanguage()->text(); |
| 2222 | $editComment .= wfMessage( 'brackets' )->params( |
| 2223 | wfMessage( 'protect-summary-cascade' )->inContentLanguage()->text() |
| 2224 | )->inContentLanguage()->text(); |
| 2225 | } |
| 2226 | |
| 2227 | return $this->newPageUpdater( $user ) |
| 2228 | ->setCause( PageUpdater::CAUSE_PROTECTION_CHANGE ) |
| 2229 | ->saveDummyRevision( $editComment, EDIT_SILENT | EDIT_MINOR ); |
| 2230 | } |
| 2231 | |
| 2232 | /** |
| 2233 | * @param string $expiry 14-char timestamp or "infinity", or false if the input was invalid |
| 2234 | * @return string |
| 2235 | */ |
| 2236 | protected function formatExpiry( $expiry ) { |
| 2237 | if ( $expiry != 'infinity' ) { |
| 2238 | $contLang = MediaWikiServices::getInstance()->getContentLanguage(); |
| 2239 | return wfMessage( |
| 2240 | 'protect-expiring', |
| 2241 | $contLang->timeanddate( $expiry, false, false ), |
| 2242 | $contLang->date( $expiry, false, false ), |
| 2243 | $contLang->time( $expiry, false, false ) |
| 2244 | )->inContentLanguage()->text(); |
| 2245 | } else { |
| 2246 | return wfMessage( 'protect-expiry-indefinite' ) |
| 2247 | ->inContentLanguage()->text(); |
| 2248 | } |
| 2249 | } |
| 2250 | |
| 2251 | /** |
| 2252 | * Builds the description to serve as comment for the edit. |
| 2253 | * |
| 2254 | * @param array $limit Set of restriction keys |
| 2255 | * @param array $expiry Per restriction type expiration |
| 2256 | * @return string |
| 2257 | */ |
| 2258 | public function protectDescription( array $limit, array $expiry ) { |
| 2259 | $protectDescription = ''; |
| 2260 | |
| 2261 | foreach ( array_filter( $limit ) as $action => $restrictions ) { |
| 2262 | # $action is one of $wgRestrictionTypes = [ 'create', 'edit', 'move', 'upload' ]. |
| 2263 | # All possible message keys are listed here for easier grepping: |
| 2264 | # * restriction-create |
| 2265 | # * restriction-edit |
| 2266 | # * restriction-move |
| 2267 | # * restriction-upload |
| 2268 | $actionText = wfMessage( 'restriction-' . $action )->inContentLanguage()->text(); |
| 2269 | # $restrictions is one of $wgRestrictionLevels = [ '', 'autoconfirmed', 'sysop' ], |
| 2270 | # with '' filtered out. All possible message keys are listed below: |
| 2271 | # * protect-level-autoconfirmed |
| 2272 | # * protect-level-sysop |
| 2273 | $restrictionsText = wfMessage( 'protect-level-' . $restrictions ) |
| 2274 | ->inContentLanguage()->text(); |
| 2275 | |
| 2276 | $expiryText = $this->formatExpiry( $expiry[$action] ); |
| 2277 | |
| 2278 | if ( $protectDescription !== '' ) { |
| 2279 | $protectDescription .= wfMessage( 'word-separator' )->inContentLanguage()->text(); |
| 2280 | } |
| 2281 | $protectDescription .= wfMessage( 'protect-summary-desc' ) |
| 2282 | ->params( $actionText, $restrictionsText, $expiryText ) |
| 2283 | ->inContentLanguage()->text(); |
| 2284 | } |
| 2285 | |
| 2286 | return $protectDescription; |
| 2287 | } |
| 2288 | |
| 2289 | /** |
| 2290 | * Builds the description to serve as comment for the log entry. |
| 2291 | * |
| 2292 | * Some bots may parse IRC lines, which are generated from log entries which contain plain |
| 2293 | * protect description text. Keep them in old format to avoid breaking compatibility. |
| 2294 | * TODO: Fix protection log to store structured description and format it on-the-fly. |
| 2295 | * |
| 2296 | * @param array $limit Set of restriction keys |
| 2297 | * @param array $expiry Per restriction type expiration |
| 2298 | * @return string |
| 2299 | */ |
| 2300 | public function protectDescriptionLog( array $limit, array $expiry ) { |
| 2301 | $protectDescriptionLog = ''; |
| 2302 | |
| 2303 | $dirMark = MediaWikiServices::getInstance()->getContentLanguage()->getDirMark(); |
| 2304 | foreach ( array_filter( $limit ) as $action => $restrictions ) { |
| 2305 | $expiryText = $this->formatExpiry( $expiry[$action] ); |
| 2306 | $protectDescriptionLog .= |
| 2307 | $dirMark . |
| 2308 | "[$action=$restrictions] ($expiryText)"; |
| 2309 | } |
| 2310 | |
| 2311 | return trim( $protectDescriptionLog ); |
| 2312 | } |
| 2313 | |
| 2314 | /** |
| 2315 | * Determines if deletion of this page would be batched (executed over time by the job queue) |
| 2316 | * or not (completed in the same request as the delete call). |
| 2317 | * |
| 2318 | * It is unlikely but possible that an edit from another request could push the page over the |
| 2319 | * batching threshold after this function is called, but before the caller acts upon the |
| 2320 | * return value. Callers must decide for themselves how to deal with this. $safetyMargin |
| 2321 | * is provided as an unreliable but situationally useful help for some common cases. |
| 2322 | * |
| 2323 | * @deprecated since 1.37 Use DeletePage::isBatchedDelete instead. |
| 2324 | * |
| 2325 | * @param int $safetyMargin Added to the revision count when checking for batching |
| 2326 | * @return bool True if deletion would be batched, false otherwise |
| 2327 | */ |
| 2328 | public function isBatchedDelete( $safetyMargin = 0 ) { |
| 2329 | $deleteRevisionsBatchSize = MediaWikiServices::getInstance() |
| 2330 | ->getMainConfig()->get( MainConfigNames::DeleteRevisionsBatchSize ); |
| 2331 | |
| 2332 | $dbr = MediaWikiServices::getInstance()->getConnectionProvider()->getReplicaDatabase(); |
| 2333 | $revCount = $this->getRevisionStore()->countRevisionsByPageId( $dbr, $this->getId() ); |
| 2334 | $revCount += $safetyMargin; |
| 2335 | |
| 2336 | return $revCount >= $deleteRevisionsBatchSize; |
| 2337 | } |
| 2338 | |
| 2339 | /** |
| 2340 | * Back-end article deletion |
| 2341 | * Deletes the article with database consistency, writes logs, purges caches |
| 2342 | * |
| 2343 | * @since 1.19 |
| 2344 | * @since 1.35 Signature changed, user moved to second parameter to prepare for requiring |
| 2345 | * a user to be passed |
| 2346 | * @since 1.36 User second parameter is required |
| 2347 | * @deprecated since 1.37 Use DeletePage instead. Calling ::deleteIfAllowed and letting DeletePage handle |
| 2348 | * permission checks is preferred over doing permission checks yourself and then calling ::deleteUnsafe. |
| 2349 | * Note that DeletePage returns a good status with false value in case of scheduled deletion, instead of |
| 2350 | * a status with a warning. Also, the new method doesn't have an $error parameter, since any error is |
| 2351 | * added to the returned Status. |
| 2352 | * |
| 2353 | * @param string $reason Delete reason for deletion log |
| 2354 | * @param UserIdentity $deleter The deleting user |
| 2355 | * @param bool $suppress Suppress all revisions and log the deletion in |
| 2356 | * the suppression log instead of the deletion log |
| 2357 | * @param bool|null $u1 Unused |
| 2358 | * @param array|string &$error Array of errors to append to |
| 2359 | * @param mixed $u2 Unused |
| 2360 | * @param string[]|null $tags Tags to apply to the deletion action |
| 2361 | * @param string $logsubtype |
| 2362 | * @param bool $immediate false allows deleting over time via the job queue |
| 2363 | * @return Status Status object; if successful, $status->value is the log_id of the |
| 2364 | * deletion log entry. If the page couldn't be deleted because it wasn't |
| 2365 | * found, $status is a non-fatal 'cannotdelete' error |
| 2366 | */ |
| 2367 | public function doDeleteArticleReal( |
| 2368 | $reason, UserIdentity $deleter, $suppress = false, $u1 = null, &$error = '', $u2 = null, |
| 2369 | $tags = [], $logsubtype = 'delete', $immediate = false |
| 2370 | ) { |
| 2371 | $services = MediaWikiServices::getInstance(); |
| 2372 | $deletePage = $services->getDeletePageFactory()->newDeletePage( |
| 2373 | $this, |
| 2374 | $services->getUserFactory()->newFromUserIdentity( $deleter ) |
| 2375 | ); |
| 2376 | |
| 2377 | $status = $deletePage |
| 2378 | ->setSuppress( $suppress ) |
| 2379 | ->setTags( $tags ?: [] ) |
| 2380 | ->setLogSubtype( $logsubtype ) |
| 2381 | ->forceImmediate( $immediate ) |
| 2382 | ->keepLegacyHookErrorsSeparate() |
| 2383 | ->deleteUnsafe( $reason ); |
| 2384 | $error = $deletePage->getLegacyHookErrors(); |
| 2385 | if ( $status->isGood() ) { |
| 2386 | // BC with old return format |
| 2387 | if ( $deletePage->deletionsWereScheduled()[DeletePage::PAGE_BASE] ) { |
| 2388 | $status->warning( 'delete-scheduled', wfEscapeWikiText( $this->getTitle()->getPrefixedText() ) ); |
| 2389 | } else { |
| 2390 | $status->value = $deletePage->getSuccessfulDeletionsIDs()[DeletePage::PAGE_BASE]; |
| 2391 | } |
| 2392 | } |
| 2393 | return $status; |
| 2394 | } |
| 2395 | |
| 2396 | /** |
| 2397 | * Lock the page row for this title+id and return page_latest (or 0) |
| 2398 | * |
| 2399 | * @return int Returns 0 if no row was found with this title+id |
| 2400 | * @since 1.27 |
| 2401 | */ |
| 2402 | public function lockAndGetLatest() { |
| 2403 | $dbw = $this->getConnectionProvider()->getPrimaryDatabase(); |
| 2404 | return (int)$dbw->newSelectQueryBuilder() |
| 2405 | ->select( 'page_latest' ) |
| 2406 | ->forUpdate() |
| 2407 | ->from( 'page' ) |
| 2408 | ->where( [ |
| 2409 | 'page_id' => $this->getId(), |
| 2410 | // Typically page_id is enough, but some code might try to do |
| 2411 | // updates assuming the title is the same, so verify that |
| 2412 | 'page_namespace' => $this->getTitle()->getNamespace(), |
| 2413 | 'page_title' => $this->getTitle()->getDBkey() |
| 2414 | ] ) |
| 2415 | ->caller( __METHOD__ )->fetchField(); |
| 2416 | } |
| 2417 | |
| 2418 | /** |
| 2419 | * The onArticle*() functions are supposed to be a kind of hooks |
| 2420 | * which should be called whenever any of the specified actions |
| 2421 | * are done. |
| 2422 | * |
| 2423 | * This is a good place to put code to clear caches, for instance. |
| 2424 | * |
| 2425 | * This is called on page move and undelete, as well as edit |
| 2426 | * |
| 2427 | * @param Title $title |
| 2428 | * @param bool $maybeIsRedirect True if the page may have been created as a redirect. |
| 2429 | * If false, this is used as a hint to skip some unnecessary updates. |
| 2430 | */ |
| 2431 | public static function onArticleCreate( Title $title, $maybeIsRedirect = true ) { |
| 2432 | // TODO: move this into a PageEventEmitter service |
| 2433 | |
| 2434 | // Update existence markers on article/talk tabs... |
| 2435 | $other = $title->getOtherPage(); |
| 2436 | |
| 2437 | $services = MediaWikiServices::getInstance(); |
| 2438 | $hcu = $services->getHtmlCacheUpdater(); |
| 2439 | $hcu->purgeTitleUrls( [ $title, $other ], $hcu::PURGE_INTENT_TXROUND_REFLECTED ); |
| 2440 | |
| 2441 | $title->touchLinks(); |
| 2442 | $title->deleteTitleProtection(); |
| 2443 | |
| 2444 | $services->getLinkCache()->invalidateTitle( $title ); |
| 2445 | |
| 2446 | DeferredUpdates::addCallableUpdate( |
| 2447 | static function () use ( $title, $maybeIsRedirect ) { |
| 2448 | self::queueBacklinksJobs( $title, true, $maybeIsRedirect, 'create-page' ); |
| 2449 | } |
| 2450 | ); |
| 2451 | |
| 2452 | if ( $title->getNamespace() === NS_CATEGORY ) { |
| 2453 | // Load the Category object, which will schedule a job to create |
| 2454 | // the category table row if necessary. Checking a replica DB is ok |
| 2455 | // here, in the worst case it'll run an unnecessary recount job on |
| 2456 | // a category that probably doesn't have many members. |
| 2457 | Category::newFromTitle( $title )->getID(); |
| 2458 | } |
| 2459 | } |
| 2460 | |
| 2461 | /** |
| 2462 | * Clears caches when article is deleted |
| 2463 | * |
| 2464 | * @internal for use by DeletePage and MovePage. |
| 2465 | * @todo pull this into DeletePage |
| 2466 | * |
| 2467 | * @param Title $title |
| 2468 | */ |
| 2469 | public static function onArticleDelete( Title $title ) { |
| 2470 | // TODO: move this into a PageEventEmitter service |
| 2471 | |
| 2472 | // Update existence markers on article/talk tabs... |
| 2473 | $other = $title->getOtherPage(); |
| 2474 | |
| 2475 | $hcu = MediaWikiServices::getInstance()->getHtmlCacheUpdater(); |
| 2476 | $hcu->purgeTitleUrls( [ $title, $other ], $hcu::PURGE_INTENT_TXROUND_REFLECTED ); |
| 2477 | |
| 2478 | $title->touchLinks(); |
| 2479 | |
| 2480 | $services = MediaWikiServices::getInstance(); |
| 2481 | $services->getLinkCache()->invalidateTitle( $title ); |
| 2482 | |
| 2483 | InfoAction::invalidateCache( $title ); |
| 2484 | |
| 2485 | // Invalidate caches of articles which include this page |
| 2486 | DeferredUpdates::addCallableUpdate( static function () use ( $title ) { |
| 2487 | self::queueBacklinksJobs( $title, true, true, 'delete-page' ); |
| 2488 | } ); |
| 2489 | |
| 2490 | // TODO: Move to ChangeTrackingEventIngress when ready, |
| 2491 | // but make sure it happens on deletions and page moves by adding |
| 2492 | // the appropriate assertions to ChangeTrackingEventIngressSpyTrait. |
| 2493 | // Messages |
| 2494 | // User talk pages |
| 2495 | if ( $title->getNamespace() === NS_USER_TALK ) { |
| 2496 | $user = User::newFromName( $title->getText(), false ); |
| 2497 | if ( $user ) { |
| 2498 | MediaWikiServices::getInstance() |
| 2499 | ->getTalkPageNotificationManager() |
| 2500 | ->removeUserHasNewMessages( $user ); |
| 2501 | } |
| 2502 | } |
| 2503 | |
| 2504 | // TODO: Create MediaEventIngress and move this there. |
| 2505 | // Image redirects |
| 2506 | $services->getRepoGroup()->getLocalRepo()->invalidateImageRedirect( $title ); |
| 2507 | |
| 2508 | // Purge cross-wiki cache entities referencing this page |
| 2509 | self::purgeInterwikiCheckKey( $title ); |
| 2510 | } |
| 2511 | |
| 2512 | /** |
| 2513 | * Purge caches on page update etc |
| 2514 | * |
| 2515 | * @param Title $title |
| 2516 | * @param RevisionRecord|null $revRecord revision that was just saved, may be null |
| 2517 | * @param string[]|null $slotsChanged The role names of the slots that were changed. |
| 2518 | * If not given, all slots are assumed to have changed. |
| 2519 | * @param bool $maybeRedirectChanged True if the page's redirect target may have changed in the |
| 2520 | * latest revision. If false, this is used as a hint to skip some unnecessary updates. |
| 2521 | */ |
| 2522 | public static function onArticleEdit( |
| 2523 | Title $title, |
| 2524 | ?RevisionRecord $revRecord = null, |
| 2525 | $slotsChanged = null, |
| 2526 | $maybeRedirectChanged = true |
| 2527 | ) { |
| 2528 | // TODO: move this into a PageEventEmitter service |
| 2529 | |
| 2530 | DeferredUpdates::addCallableUpdate( |
| 2531 | static function () use ( $title, $slotsChanged, $maybeRedirectChanged ) { |
| 2532 | self::queueBacklinksJobs( |
| 2533 | $title, |
| 2534 | $slotsChanged === null || in_array( SlotRecord::MAIN, $slotsChanged ), |
| 2535 | $maybeRedirectChanged, |
| 2536 | 'edit-page' |
| 2537 | ); |
| 2538 | } |
| 2539 | ); |
| 2540 | |
| 2541 | $services = MediaWikiServices::getInstance(); |
| 2542 | $services->getLinkCache()->invalidateTitle( $title ); |
| 2543 | |
| 2544 | $hcu = MediaWikiServices::getInstance()->getHtmlCacheUpdater(); |
| 2545 | $hcu->purgeTitleUrls( $title, $hcu::PURGE_INTENT_TXROUND_REFLECTED ); |
| 2546 | |
| 2547 | // Purge ?action=info cache |
| 2548 | $revid = $revRecord ? $revRecord->getId() : null; |
| 2549 | DeferredUpdates::addCallableUpdate( static function () use ( $title, $revid ) { |
| 2550 | InfoAction::invalidateCache( $title, $revid ); |
| 2551 | } ); |
| 2552 | |
| 2553 | // Purge cross-wiki cache entities referencing this page |
| 2554 | self::purgeInterwikiCheckKey( $title ); |
| 2555 | } |
| 2556 | |
| 2557 | private static function queueBacklinksJobs( |
| 2558 | Title $title, $mainSlotChanged, $maybeRedirectChanged, $causeAction |
| 2559 | ) { |
| 2560 | $services = MediaWikiServices::getInstance(); |
| 2561 | $backlinkCache = $services->getBacklinkCacheFactory()->getBacklinkCache( $title ); |
| 2562 | |
| 2563 | $jobs = []; |
| 2564 | if ( $mainSlotChanged |
| 2565 | && $backlinkCache->hasLinks( 'templatelinks' ) |
| 2566 | ) { |
| 2567 | // Invalidate caches of articles which include this page. |
| 2568 | // Only for the main slot, because only the main slot is transcluded. |
| 2569 | // TODO: MCR: not true for TemplateStyles! [SlotHandler] |
| 2570 | $jobs[] = HTMLCacheUpdateJob::newForBacklinks( |
| 2571 | $title, |
| 2572 | 'templatelinks', |
| 2573 | [ 'causeAction' => $causeAction ] |
| 2574 | ); |
| 2575 | } |
| 2576 | // Images |
| 2577 | if ( $maybeRedirectChanged && $title->getNamespace() === NS_FILE |
| 2578 | && $backlinkCache->hasLinks( 'imagelinks' ) |
| 2579 | ) { |
| 2580 | // Process imagelinks in case the redirect target has changed |
| 2581 | $jobs[] = HTMLCacheUpdateJob::newForBacklinks( |
| 2582 | $title, |
| 2583 | 'imagelinks', |
| 2584 | [ 'causeAction' => $causeAction ] |
| 2585 | ); |
| 2586 | } |
| 2587 | // Invalidate the caches of all pages which redirect here |
| 2588 | if ( $backlinkCache->hasLinks( 'redirect' ) ) { |
| 2589 | $jobs[] = HTMLCacheUpdateJob::newForBacklinks( |
| 2590 | $title, |
| 2591 | 'redirect', |
| 2592 | [ 'causeAction' => $causeAction ] |
| 2593 | ); |
| 2594 | } |
| 2595 | if ( $jobs ) { |
| 2596 | $services->getJobQueueGroup()->push( $jobs ); |
| 2597 | } |
| 2598 | } |
| 2599 | |
| 2600 | /** |
| 2601 | * Purge the check key for cross-wiki cache entries referencing this page |
| 2602 | */ |
| 2603 | private static function purgeInterwikiCheckKey( Title $title ) { |
| 2604 | $enableScaryTranscluding = MediaWikiServices::getInstance()->getMainConfig()->get( |
| 2605 | MainConfigNames::EnableScaryTranscluding ); |
| 2606 | |
| 2607 | if ( !$enableScaryTranscluding ) { |
| 2608 | return; // @todo: perhaps this wiki is only used as a *source* for content? |
| 2609 | } |
| 2610 | |
| 2611 | DeferredUpdates::addCallableUpdate( static function () use ( $title ) { |
| 2612 | $cache = MediaWikiServices::getInstance()->getMainWANObjectCache(); |
| 2613 | $cache->resetCheckKey( |
| 2614 | // Do not include the namespace since there can be multiple aliases to it |
| 2615 | // due to different namespace text definitions on different wikis. This only |
| 2616 | // means that some cache invalidations happen that are not strictly needed. |
| 2617 | $cache->makeGlobalKey( |
| 2618 | 'interwiki-page', |
| 2619 | WikiMap::getCurrentWikiDbDomain()->getId(), |
| 2620 | $title->getDBkey() |
| 2621 | ) |
| 2622 | ); |
| 2623 | } ); |
| 2624 | } |
| 2625 | |
| 2626 | /** |
| 2627 | * Returns a list of categories this page is a member of. |
| 2628 | * Results will include hidden categories |
| 2629 | * |
| 2630 | * @return TitleArrayFromResult |
| 2631 | */ |
| 2632 | public function getCategories() { |
| 2633 | $services = MediaWikiServices::getInstance(); |
| 2634 | $id = $this->getId(); |
| 2635 | if ( $id == 0 ) { |
| 2636 | return $services->getTitleFactory()->newTitleArrayFromResult( new FakeResultWrapper( [] ) ); |
| 2637 | } |
| 2638 | |
| 2639 | $dbr = $services->getConnectionProvider()->getReplicaDatabase(); |
| 2640 | $res = $dbr->newSelectQueryBuilder() |
| 2641 | ->select( [ 'page_title' => 'cl_to', 'page_namespace' => (string)NS_CATEGORY ] ) |
| 2642 | ->from( 'categorylinks' ) |
| 2643 | ->where( [ 'cl_from' => $id ] ) |
| 2644 | ->caller( __METHOD__ )->fetchResultSet(); |
| 2645 | |
| 2646 | return $services->getTitleFactory()->newTitleArrayFromResult( $res ); |
| 2647 | } |
| 2648 | |
| 2649 | /** |
| 2650 | * Returns a list of hidden categories this page is a member of. |
| 2651 | * Uses the page_props and categorylinks tables. |
| 2652 | * |
| 2653 | * @return Title[] |
| 2654 | */ |
| 2655 | public function getHiddenCategories() { |
| 2656 | $result = []; |
| 2657 | $id = $this->getId(); |
| 2658 | |
| 2659 | if ( $id == 0 ) { |
| 2660 | return []; |
| 2661 | } |
| 2662 | |
| 2663 | $dbr = $this->getConnectionProvider()->getReplicaDatabase(); |
| 2664 | $res = $dbr->newSelectQueryBuilder() |
| 2665 | ->select( [ 'cl_to' ] ) |
| 2666 | ->from( 'categorylinks' ) |
| 2667 | ->join( 'page', null, 'page_title=cl_to' ) |
| 2668 | ->join( 'page_props', null, 'pp_page=page_id' ) |
| 2669 | ->where( [ 'cl_from' => $id, 'pp_propname' => 'hiddencat', 'page_namespace' => NS_CATEGORY ] ) |
| 2670 | ->caller( __METHOD__ )->fetchResultSet(); |
| 2671 | |
| 2672 | foreach ( $res as $row ) { |
| 2673 | $result[] = Title::makeTitle( NS_CATEGORY, $row->cl_to ); |
| 2674 | } |
| 2675 | |
| 2676 | return $result; |
| 2677 | } |
| 2678 | |
| 2679 | /** |
| 2680 | * Auto-generates a deletion reason |
| 2681 | * |
| 2682 | * @param bool &$hasHistory Whether the page has a history |
| 2683 | * @return string|false String containing deletion reason or empty string, or boolean false |
| 2684 | * if no revision occurred |
| 2685 | */ |
| 2686 | public function getAutoDeleteReason( &$hasHistory = false ) { |
| 2687 | if ( func_num_args() === 1 ) { |
| 2688 | wfDeprecated( __METHOD__ . ': $hasHistory parameter', '1.38' ); |
| 2689 | return $this->getContentHandler()->getAutoDeleteReason( $this->getTitle(), $hasHistory ); |
| 2690 | } |
| 2691 | return $this->getContentHandler()->getAutoDeleteReason( $this->getTitle() ); |
| 2692 | } |
| 2693 | |
| 2694 | /** |
| 2695 | * Update all the appropriate counts in the category table, given that |
| 2696 | * we've added the categories $added and deleted the categories $deleted. |
| 2697 | * |
| 2698 | * This should only be called from deferred updates or jobs to avoid contention. |
| 2699 | * |
| 2700 | * @param string[] $added The names of categories that were added |
| 2701 | * @param string[] $deleted The names of categories that were deleted |
| 2702 | * @param int $id Page ID (this should be the original deleted page ID) |
| 2703 | */ |
| 2704 | public function updateCategoryCounts( array $added, array $deleted, $id = 0 ) { |
| 2705 | $id = $id ?: $this->getId(); |
| 2706 | // Guard against data corruption T301433 |
| 2707 | $added = array_map( 'strval', $added ); |
| 2708 | $deleted = array_map( 'strval', $deleted ); |
| 2709 | $type = MediaWikiServices::getInstance()->getNamespaceInfo()-> |
| 2710 | getCategoryLinkType( $this->getTitle()->getNamespace() ); |
| 2711 | |
| 2712 | $addFields = [ 'cat_pages' => new RawSQLValue( 'cat_pages + 1' ) ]; |
| 2713 | $removeFields = [ 'cat_pages' => new RawSQLValue( 'cat_pages - 1' ) ]; |
| 2714 | if ( $type !== 'page' ) { |
| 2715 | $addFields["cat_{$type}s"] = new RawSQLValue( "cat_{$type}s + 1" ); |
| 2716 | $removeFields["cat_{$type}s"] = new RawSQLValue( "cat_{$type}s - 1" ); |
| 2717 | } |
| 2718 | |
| 2719 | $dbw = $this->getConnectionProvider()->getPrimaryDatabase(); |
| 2720 | $res = $dbw->newSelectQueryBuilder() |
| 2721 | ->select( [ 'cat_id', 'cat_title' ] ) |
| 2722 | ->from( 'category' ) |
| 2723 | ->where( [ 'cat_title' => array_merge( $added, $deleted ) ] ) |
| 2724 | ->caller( __METHOD__ ) |
| 2725 | ->fetchResultSet(); |
| 2726 | $existingCategories = []; |
| 2727 | foreach ( $res as $row ) { |
| 2728 | $existingCategories[$row->cat_id] = $row->cat_title; |
| 2729 | } |
| 2730 | $existingAdded = array_intersect( $existingCategories, $added ); |
| 2731 | $existingDeleted = array_intersect( $existingCategories, $deleted ); |
| 2732 | $missingAdded = array_diff( $added, $existingAdded ); |
| 2733 | |
| 2734 | // For category rows that already exist, do a plain |
| 2735 | // UPDATE instead of INSERT...ON DUPLICATE KEY UPDATE |
| 2736 | // to avoid creating gaps in the cat_id sequence. |
| 2737 | if ( $existingAdded ) { |
| 2738 | $dbw->newUpdateQueryBuilder() |
| 2739 | ->update( 'category' ) |
| 2740 | ->set( $addFields ) |
| 2741 | ->where( [ 'cat_id' => array_keys( $existingAdded ) ] ) |
| 2742 | ->caller( __METHOD__ )->execute(); |
| 2743 | } |
| 2744 | |
| 2745 | if ( $missingAdded ) { |
| 2746 | $queryBuilder = $dbw->newInsertQueryBuilder() |
| 2747 | ->insertInto( 'category' ) |
| 2748 | ->onDuplicateKeyUpdate() |
| 2749 | ->uniqueIndexFields( [ 'cat_title' ] ) |
| 2750 | ->set( $addFields ); |
| 2751 | foreach ( $missingAdded as $cat ) { |
| 2752 | $queryBuilder->row( [ |
| 2753 | 'cat_title' => $cat, |
| 2754 | 'cat_pages' => 1, |
| 2755 | 'cat_subcats' => ( $type === 'subcat' ) ? 1 : 0, |
| 2756 | 'cat_files' => ( $type === 'file' ) ? 1 : 0, |
| 2757 | ] ); |
| 2758 | } |
| 2759 | $queryBuilder->caller( __METHOD__ )->execute(); |
| 2760 | } |
| 2761 | |
| 2762 | if ( $existingDeleted ) { |
| 2763 | $dbw->newUpdateQueryBuilder() |
| 2764 | ->update( 'category' ) |
| 2765 | ->set( $removeFields ) |
| 2766 | ->where( [ 'cat_id' => array_keys( $existingDeleted ) ] ) |
| 2767 | ->caller( __METHOD__ )->execute(); |
| 2768 | } |
| 2769 | |
| 2770 | foreach ( $added as $catName ) { |
| 2771 | $cat = Category::newFromName( $catName ); |
| 2772 | $this->getHookRunner()->onCategoryAfterPageAdded( $cat, $this ); |
| 2773 | } |
| 2774 | |
| 2775 | foreach ( $deleted as $catName ) { |
| 2776 | $cat = Category::newFromName( $catName ); |
| 2777 | $this->getHookRunner()->onCategoryAfterPageRemoved( $cat, $this, $id ); |
| 2778 | // Refresh counts on categories that should be empty now (after commit, T166757) |
| 2779 | DeferredUpdates::addCallableUpdate( static function () use ( $cat ) { |
| 2780 | $cat->refreshCountsIfEmpty(); |
| 2781 | } ); |
| 2782 | } |
| 2783 | } |
| 2784 | |
| 2785 | /** |
| 2786 | * Opportunistically enqueue link update jobs after a fresh parser output was generated. |
| 2787 | * |
| 2788 | * This method should only be called by PoolWorkArticleViewCurrent, after a page view |
| 2789 | * experienced a miss from the ParserCache, and a new ParserOutput was generated. |
| 2790 | * Specifically, for load reasons, this method must not get called during page views that |
| 2791 | * use a cached ParserOutput. |
| 2792 | * |
| 2793 | * @since 1.25 |
| 2794 | * @internal For use by PoolWorkArticleViewCurrent |
| 2795 | * @param ParserOutput $parserOutput Current version page output |
| 2796 | */ |
| 2797 | public function triggerOpportunisticLinksUpdate( ParserOutput $parserOutput ) { |
| 2798 | if ( MediaWikiServices::getInstance()->getReadOnlyMode()->isReadOnly() ) { |
| 2799 | return; |
| 2800 | } |
| 2801 | |
| 2802 | if ( !$this->getHookRunner()->onOpportunisticLinksUpdate( $this, |
| 2803 | $this->mTitle, $parserOutput ) |
| 2804 | ) { |
| 2805 | return; |
| 2806 | } |
| 2807 | |
| 2808 | $config = MediaWikiServices::getInstance()->getMainConfig(); |
| 2809 | |
| 2810 | $params = [ |
| 2811 | 'isOpportunistic' => true, |
| 2812 | 'rootJobTimestamp' => $parserOutput->getCacheTime() |
| 2813 | ]; |
| 2814 | |
| 2815 | if ( MediaWikiServices::getInstance()->getRestrictionStore()->areRestrictionsCascading( $this->mTitle ) ) { |
| 2816 | // In general, MediaWiki does not re-run LinkUpdate (e.g. for search index, category |
| 2817 | // listings, and backlinks for Whatlinkshere), unless either the page was directly |
| 2818 | // edited, or was re-generate following a template edit propagating to an affected |
| 2819 | // page. As such, during page views when there is no valid ParserCache entry, |
| 2820 | // we re-parse and save, but leave indexes as-is. |
| 2821 | // |
| 2822 | // We make an exception for pages that have cascading protection (perhaps for a wiki's |
| 2823 | // "Main Page"). When such page is re-parsed on-demand after a parser cache miss, we |
| 2824 | // queue a high-priority LinksUpdate job, to ensure that we really protect all |
| 2825 | // content that is currently transcluded onto the page. This is important, because |
| 2826 | // wikitext supports conditional statements based on the current time, which enables |
| 2827 | // transcluding of a different subpage based on which day it is, and then show that |
| 2828 | // information on the Main Page, without the Main Page itself being edited. |
| 2829 | MediaWikiServices::getInstance()->getJobQueueGroup()->lazyPush( |
| 2830 | RefreshLinksJob::newPrioritized( $this->mTitle, $params ) |
| 2831 | ); |
| 2832 | } elseif ( !$config->get( MainConfigNames::MiserMode ) && |
| 2833 | $parserOutput->hasReducedExpiry() |
| 2834 | ) { |
| 2835 | // Assume the output contains "dynamic" time/random based magic words. |
| 2836 | // Only update pages that expired due to dynamic content and NOT due to edits |
| 2837 | // to referenced templates/files. When the cache expires due to dynamic content, |
| 2838 | // page_touched is unchanged. We want to avoid triggering redundant jobs due to |
| 2839 | // views of pages that were just purged via HTMLCacheUpdateJob. In that case, the |
| 2840 | // template/file edit already triggered recursive RefreshLinksJob jobs. |
| 2841 | if ( $this->getLinksTimestamp() > $this->getTouched() ) { |
| 2842 | // If a page is uncacheable, do not keep spamming a job for it. |
| 2843 | // Although it would be de-duplicated, it would still waste I/O. |
| 2844 | $services = MediaWikiServices::getInstance()->getObjectCacheFactory(); |
| 2845 | $cache = $services->getLocalClusterInstance(); |
| 2846 | $key = $cache->makeKey( 'dynamic-linksupdate', 'last', $this->getId() ); |
| 2847 | $ttl = max( $parserOutput->getCacheExpiry(), 3600 ); |
| 2848 | if ( $cache->add( $key, time(), $ttl ) ) { |
| 2849 | MediaWikiServices::getInstance()->getJobQueueGroup()->lazyPush( |
| 2850 | RefreshLinksJob::newDynamic( $this->mTitle, $params ) |
| 2851 | ); |
| 2852 | } |
| 2853 | } |
| 2854 | } |
| 2855 | } |
| 2856 | |
| 2857 | /** |
| 2858 | * Whether this content displayed on this page |
| 2859 | * comes from the local database |
| 2860 | * |
| 2861 | * @since 1.28 |
| 2862 | * @return bool |
| 2863 | */ |
| 2864 | public function isLocal() { |
| 2865 | return true; |
| 2866 | } |
| 2867 | |
| 2868 | /** |
| 2869 | * The display name for the site this content |
| 2870 | * come from. If a subclass overrides isLocal(), |
| 2871 | * this could return something other than the |
| 2872 | * current site name |
| 2873 | * |
| 2874 | * @since 1.28 |
| 2875 | * @return string |
| 2876 | */ |
| 2877 | public function getWikiDisplayName() { |
| 2878 | $sitename = MediaWikiServices::getInstance()->getMainConfig()->get( |
| 2879 | MainConfigNames::Sitename ); |
| 2880 | return $sitename; |
| 2881 | } |
| 2882 | |
| 2883 | /** |
| 2884 | * Get the source URL for the content on this page, |
| 2885 | * typically the canonical URL, but may be a remote |
| 2886 | * link if the content comes from another site |
| 2887 | * |
| 2888 | * @since 1.28 |
| 2889 | * @return string |
| 2890 | */ |
| 2891 | public function getSourceURL() { |
| 2892 | return $this->getTitle()->getCanonicalURL(); |
| 2893 | } |
| 2894 | |
| 2895 | /** |
| 2896 | * Ensure consistency when unserializing. |
| 2897 | * @note WikiPage objects should never be serialized in the first place. |
| 2898 | * But some extensions like AbuseFilter did (see T213006), |
| 2899 | * and we need to be able to read old data (see T187153). |
| 2900 | */ |
| 2901 | public function __wakeup() { |
| 2902 | // Make sure we re-fetch the latest state from the database. |
| 2903 | // In particular, the latest revision may have changed. |
| 2904 | // As a side-effect, this makes sure mLastRevision doesn't |
| 2905 | // end up being an instance of the old Revision class (see T259181), |
| 2906 | // especially since that class was removed entirely in 1.37. |
| 2907 | $this->clear(); |
| 2908 | } |
| 2909 | |
| 2910 | /** |
| 2911 | * @inheritDoc |
| 2912 | * @since 1.36 |
| 2913 | */ |
| 2914 | public function getNamespace(): int { |
| 2915 | return $this->getTitle()->getNamespace(); |
| 2916 | } |
| 2917 | |
| 2918 | /** |
| 2919 | * @inheritDoc |
| 2920 | * @since 1.36 |
| 2921 | */ |
| 2922 | public function getDBkey(): string { |
| 2923 |