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| convertByteClassToUnicodeClass | |
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| makeName | |
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| 1 | <?php |
| 2 | /** |
| 3 | * Representation of a title within MediaWiki. |
| 4 | * |
| 5 | * See Title.md |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License along |
| 18 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 20 | * http://www.gnu.org/copyleft/gpl.html |
| 21 | * |
| 22 | * @file |
| 23 | */ |
| 24 | |
| 25 | namespace MediaWiki\Title; |
| 26 | |
| 27 | use HTMLCacheUpdateJob; |
| 28 | use InvalidArgumentException; |
| 29 | use MapCacheLRU; |
| 30 | use MediaWiki\Cache\LinkCache; |
| 31 | use MediaWiki\Context\RequestContext; |
| 32 | use MediaWiki\DAO\WikiAwareEntityTrait; |
| 33 | use MediaWiki\Deferred\AutoCommitUpdate; |
| 34 | use MediaWiki\Deferred\DeferredUpdates; |
| 35 | use MediaWiki\HookContainer\HookRunner; |
| 36 | use MediaWiki\Html\Html; |
| 37 | use MediaWiki\Interwiki\InterwikiLookup; |
| 38 | use MediaWiki\Language\ILanguageConverter; |
| 39 | use MediaWiki\Language\Language; |
| 40 | use MediaWiki\Linker\LinkTarget; |
| 41 | use MediaWiki\MainConfigNames; |
| 42 | use MediaWiki\MediaWikiServices; |
| 43 | use MediaWiki\Message\Message; |
| 44 | use MediaWiki\Page\ExistingPageRecord; |
| 45 | use MediaWiki\Page\PageIdentity; |
| 46 | use MediaWiki\Page\PageIdentityValue; |
| 47 | use MediaWiki\Page\PageReference; |
| 48 | use MediaWiki\Page\PageStoreRecord; |
| 49 | use MediaWiki\Page\ProperPageIdentity; |
| 50 | use MediaWiki\Page\WikiPage; |
| 51 | use MediaWiki\Parser\Sanitizer; |
| 52 | use MediaWiki\Request\PathRouter; |
| 53 | use MediaWiki\ResourceLoader\WikiModule; |
| 54 | use MediaWiki\SpecialPage\SpecialPage; |
| 55 | use MediaWiki\Utils\MWTimestamp; |
| 56 | use MessageLocalizer; |
| 57 | use MWException; |
| 58 | use RuntimeException; |
| 59 | use stdClass; |
| 60 | use Stringable; |
| 61 | use Wikimedia\Assert\Assert; |
| 62 | use Wikimedia\Assert\PreconditionException; |
| 63 | use Wikimedia\Parsoid\Core\LinkTarget as ParsoidLinkTarget; |
| 64 | use Wikimedia\Parsoid\Core\LinkTargetTrait; |
| 65 | use Wikimedia\Rdbms\DBAccessObjectUtils; |
| 66 | use Wikimedia\Rdbms\IConnectionProvider; |
| 67 | use Wikimedia\Rdbms\IDatabase; |
| 68 | use Wikimedia\Rdbms\IDBAccessObject; |
| 69 | |
| 70 | /** |
| 71 | * Represents a title within MediaWiki. |
| 72 | * Optionally may contain an interwiki designation or namespace. |
| 73 | * @note This class can fetch various kinds of data from the database; |
| 74 | * however, it does so inefficiently. |
| 75 | * @note Consider using a TitleValue object instead. TitleValue is more lightweight |
| 76 | * and does not rely on global state or the database. |
| 77 | */ |
| 78 | class Title implements Stringable, LinkTarget, PageIdentity { |
| 79 | use WikiAwareEntityTrait; |
| 80 | use LinkTargetTrait; |
| 81 | |
| 82 | /** @var MapCacheLRU|null */ |
| 83 | private static $titleCache = null; |
| 84 | |
| 85 | /** |
| 86 | * Title::newFromText maintains a cache to avoid expensive re-normalization of |
| 87 | * commonly used titles. On a batch operation this can become a memory leak |
| 88 | * if not bounded. |
| 89 | */ |
| 90 | private const CACHE_MAX = 1000; |
| 91 | |
| 92 | /** |
| 93 | * Flag for use with factory methods like newFromLinkTarget() that have |
| 94 | * a $forceClone parameter. If set, the method must return a new instance. |
| 95 | * Without this flag, some factory methods may return existing instances.as |
| 96 | * |
| 97 | * @since 1.33 |
| 98 | */ |
| 99 | public const NEW_CLONE = 'clone'; |
| 100 | |
| 101 | /** @var string Text form (spaces not underscores) of the main part */ |
| 102 | private $mTextform = ''; |
| 103 | |
| 104 | /** @var string URL-encoded form of the main part */ |
| 105 | private $mUrlform = ''; |
| 106 | |
| 107 | /** @var string Main part with underscores */ |
| 108 | private $mDbkeyform = ''; |
| 109 | |
| 110 | /** @var int Namespace index, i.e. one of the NS_xxxx constants */ |
| 111 | private $mNamespace = NS_MAIN; |
| 112 | |
| 113 | /** @var string Interwiki prefix */ |
| 114 | private $mInterwiki = ''; |
| 115 | |
| 116 | /** @var bool Was this Title created from a string with a local interwiki prefix? */ |
| 117 | private $mLocalInterwiki = false; |
| 118 | |
| 119 | /** @var string Title fragment (i.e. the bit after the #) */ |
| 120 | private $mFragment = ''; |
| 121 | |
| 122 | /***************************************************************************/ |
| 123 | // region Private member variables |
| 124 | /** @name Private member variables |
| 125 | * Please use the accessor functions instead. |
| 126 | * @internal |
| 127 | * @{ |
| 128 | */ |
| 129 | |
| 130 | /** @var int Article ID, fetched from the link cache on demand */ |
| 131 | public $mArticleID = -1; |
| 132 | |
| 133 | /** @var int|false ID of most recent revision */ |
| 134 | protected $mLatestID = false; |
| 135 | |
| 136 | /** |
| 137 | * @var string|false ID of the page's content model, i.e. one of the |
| 138 | * CONTENT_MODEL_XXX constants |
| 139 | */ |
| 140 | private $mContentModel = false; |
| 141 | |
| 142 | /** |
| 143 | * @var bool If a content model was forced via setContentModel() |
| 144 | * this will be true to avoid having other code paths reset it |
| 145 | */ |
| 146 | private $mForcedContentModel = false; |
| 147 | |
| 148 | /** @var int|null Estimated number of revisions; null of not loaded */ |
| 149 | private $mEstimateRevisions; |
| 150 | |
| 151 | /** |
| 152 | * Text form including namespace/interwiki, initialised on demand |
| 153 | * |
| 154 | * Only public to share cache with TitleFormatter |
| 155 | * |
| 156 | * @internal |
| 157 | * @var string|null |
| 158 | */ |
| 159 | public $prefixedText = null; |
| 160 | |
| 161 | /** |
| 162 | * Namespace to assume when no namespace was passed to factory methods. |
| 163 | * This must be NS_MAIN, as it's hardcoded in several places. See T2696. |
| 164 | * Used primarily for {{transclusion}} tags. |
| 165 | */ |
| 166 | private const DEFAULT_NAMESPACE = NS_MAIN; |
| 167 | |
| 168 | /** @var int The page length, 0 for special pages */ |
| 169 | protected $mLength = -1; |
| 170 | |
| 171 | /** @var null|bool Is the article at this title a redirect? */ |
| 172 | public $mRedirect = null; |
| 173 | |
| 174 | /** @var bool Whether a page has any subpages */ |
| 175 | private $mHasSubpages; |
| 176 | |
| 177 | /** @var array|null The (string) language code of the page's language and content code. */ |
| 178 | private $mPageLanguage; |
| 179 | |
| 180 | /** @var string|false|null The page language code from the database, null if not saved in |
| 181 | * the database or false if not loaded, yet. |
| 182 | */ |
| 183 | private $mDbPageLanguage = false; |
| 184 | |
| 185 | /** @var TitleValue|null */ |
| 186 | private $mTitleValue = null; |
| 187 | |
| 188 | /** @var bool|null Would deleting this page be a big deletion? */ |
| 189 | private $mIsBigDeletion = null; |
| 190 | |
| 191 | /** @var bool|null Is the title known to be valid? */ |
| 192 | private $mIsValid = null; |
| 193 | |
| 194 | /** @var string|null The key of this instance in the internal Title instance cache */ |
| 195 | private $mInstanceCacheKey = null; |
| 196 | |
| 197 | // endregion -- end of private member variables |
| 198 | /** @} */ |
| 199 | /***************************************************************************/ |
| 200 | |
| 201 | /** |
| 202 | * Shorthand for getting a Language Converter for specific language |
| 203 | * @param Language $language Language of converter |
| 204 | * @return ILanguageConverter |
| 205 | */ |
| 206 | private function getLanguageConverter( $language ): ILanguageConverter { |
| 207 | return MediaWikiServices::getInstance()->getLanguageConverterFactory() |
| 208 | ->getLanguageConverter( $language ); |
| 209 | } |
| 210 | |
| 211 | /** |
| 212 | * Shorthand for getting a Language Converter for page's language |
| 213 | */ |
| 214 | private function getPageLanguageConverter(): ILanguageConverter { |
| 215 | return $this->getLanguageConverter( $this->getPageLanguage() ); |
| 216 | } |
| 217 | |
| 218 | /** |
| 219 | * Shorthand for getting a database connection provider |
| 220 | */ |
| 221 | private function getDbProvider(): IConnectionProvider { |
| 222 | return MediaWikiServices::getInstance()->getConnectionProvider(); |
| 223 | } |
| 224 | |
| 225 | /** |
| 226 | * B/C kludge: provide a TitleParser for use by Title. |
| 227 | * Ideally, Title would have no methods that need this. |
| 228 | * Avoid usage of this singleton by using TitleValue |
| 229 | * and the associated services when possible. |
| 230 | * |
| 231 | * @return TitleFormatter |
| 232 | */ |
| 233 | private static function getTitleFormatter() { |
| 234 | return MediaWikiServices::getInstance()->getTitleFormatter(); |
| 235 | } |
| 236 | |
| 237 | /** |
| 238 | * B/C kludge: provide an InterwikiLookup for use by Title. |
| 239 | * Ideally, Title would have no methods that need this. |
| 240 | * Avoid usage of this singleton by using TitleValue |
| 241 | * and the associated services when possible. |
| 242 | * |
| 243 | * @return InterwikiLookup |
| 244 | */ |
| 245 | private static function getInterwikiLookup() { |
| 246 | return MediaWikiServices::getInstance()->getInterwikiLookup(); |
| 247 | } |
| 248 | |
| 249 | private function __construct() { |
| 250 | } |
| 251 | |
| 252 | /** |
| 253 | * Create a new Title from a prefixed DB key |
| 254 | * |
| 255 | * @param string $key The database key, which has underscores |
| 256 | * instead of spaces, possibly including namespace and |
| 257 | * interwiki prefixes |
| 258 | * @return Title|null Title, or null on an error |
| 259 | */ |
| 260 | public static function newFromDBkey( $key ) { |
| 261 | $t = new self(); |
| 262 | |
| 263 | try { |
| 264 | $t->secureAndSplit( $key ); |
| 265 | return $t; |
| 266 | } catch ( MalformedTitleException $ex ) { |
| 267 | return null; |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | /** |
| 272 | * Returns a Title given a LinkTarget. |
| 273 | * If the given LinkTarget is already a Title instance, that instance is returned, |
| 274 | * unless $forceClone is "clone". If $forceClone is "clone" and the given LinkTarget |
| 275 | * is already a Title instance, that instance is copied using the clone operator. |
| 276 | * |
| 277 | * @since 1.27 |
| 278 | * @param ParsoidLinkTarget $linkTarget Assumed to be safe. |
| 279 | * @param string $forceClone set to NEW_CLONE to ensure a fresh instance is returned. |
| 280 | * @return Title |
| 281 | */ |
| 282 | public static function newFromLinkTarget( ParsoidLinkTarget $linkTarget, $forceClone = '' ) { |
| 283 | if ( $linkTarget instanceof Title ) { |
| 284 | // Special case if it's already a Title object |
| 285 | if ( $forceClone === self::NEW_CLONE ) { |
| 286 | return clone $linkTarget; |
| 287 | } else { |
| 288 | return $linkTarget; |
| 289 | } |
| 290 | } |
| 291 | return self::makeTitle( |
| 292 | $linkTarget->getNamespace(), |
| 293 | $linkTarget->getText(), |
| 294 | $linkTarget->getFragment(), |
| 295 | $linkTarget->getInterwiki() |
| 296 | ); |
| 297 | } |
| 298 | |
| 299 | /** |
| 300 | * Same as newFromLinkTarget(), but if passed null, returns null. |
| 301 | * |
| 302 | * @since 1.34 |
| 303 | * @param ParsoidLinkTarget|null $linkTarget Assumed to be safe (if not null). |
| 304 | * @return Title|null |
| 305 | */ |
| 306 | public static function castFromLinkTarget( ?ParsoidLinkTarget $linkTarget ) { |
| 307 | if ( !$linkTarget ) { |
| 308 | return null; |
| 309 | } |
| 310 | return self::newFromLinkTarget( $linkTarget ); |
| 311 | } |
| 312 | |
| 313 | /** |
| 314 | * Return a Title for a given PageIdentity. If $pageIdentity is a Title, |
| 315 | * that Title is returned unchanged. |
| 316 | * |
| 317 | * @since 1.41 |
| 318 | * @param PageIdentity $pageIdentity |
| 319 | * @return Title |
| 320 | */ |
| 321 | public static function newFromPageIdentity( PageIdentity $pageIdentity ): Title { |
| 322 | return self::newFromPageReference( $pageIdentity ); |
| 323 | } |
| 324 | |
| 325 | /** |
| 326 | * Same as newFromPageIdentity(), but if passed null, returns null. |
| 327 | * |
| 328 | * @since 1.36 |
| 329 | * @param PageIdentity|null $pageIdentity |
| 330 | * @return Title|null |
| 331 | */ |
| 332 | public static function castFromPageIdentity( ?PageIdentity $pageIdentity ): ?Title { |
| 333 | return self::castFromPageReference( $pageIdentity ); |
| 334 | } |
| 335 | |
| 336 | /** |
| 337 | * Return a Title for a given Reference. If $pageReference is a Title, |
| 338 | * that Title is returned unchanged. |
| 339 | * |
| 340 | * @since 1.41 |
| 341 | * @param PageReference $pageReference |
| 342 | * @return Title |
| 343 | */ |
| 344 | public static function newFromPageReference( PageReference $pageReference ): Title { |
| 345 | if ( $pageReference instanceof Title ) { |
| 346 | return $pageReference; |
| 347 | } |
| 348 | |
| 349 | $pageReference->assertWiki( self::LOCAL ); |
| 350 | $title = self::makeTitle( $pageReference->getNamespace(), $pageReference->getDBkey() ); |
| 351 | |
| 352 | if ( $pageReference instanceof PageIdentity ) { |
| 353 | $title->mArticleID = $pageReference->getId(); |
| 354 | } |
| 355 | return $title; |
| 356 | } |
| 357 | |
| 358 | /** |
| 359 | * Same as newFromPageReference(), but if passed null, returns null. |
| 360 | * |
| 361 | * @since 1.37 |
| 362 | * @param PageReference|null $pageReference |
| 363 | * @return Title|null |
| 364 | */ |
| 365 | public static function castFromPageReference( ?PageReference $pageReference ): ?Title { |
| 366 | if ( !$pageReference ) { |
| 367 | return null; |
| 368 | } |
| 369 | return self::newFromPageReference( $pageReference ); |
| 370 | } |
| 371 | |
| 372 | /** |
| 373 | * Create a new Title from text, such as what one would find in a link. |
| 374 | * Decodes any HTML entities in the text. |
| 375 | * Titles returned by this method are guaranteed to be valid. |
| 376 | * Call canExist() to check if the Title represents an editable page. |
| 377 | * |
| 378 | * @note The Title instance returned by this method is not guaranteed to be a fresh instance. |
| 379 | * It may instead be a cached instance created previously, with references to it remaining |
| 380 | * elsewhere. |
| 381 | * |
| 382 | * @param string|int|null $text The link text; spaces, prefixes, and an |
| 383 | * initial ':' indicating the main namespace are accepted. |
| 384 | * @param int $defaultNamespace The namespace to use if none is specified |
| 385 | * by a prefix. If you want to force a specific namespace even if |
| 386 | * $text might begin with a namespace prefix, use makeTitle() or |
| 387 | * makeTitleSafe(). |
| 388 | * @return Title|null Title or null if the Title could not be parsed because |
| 389 | * it is invalid. |
| 390 | */ |
| 391 | public static function newFromText( $text, $defaultNamespace = NS_MAIN ) { |
| 392 | // DWIM: Integers can be passed in here when page titles are used as array keys. |
| 393 | if ( $text !== null && !is_string( $text ) && !is_int( $text ) ) { |
| 394 | throw new InvalidArgumentException( '$text must be a string.' ); |
| 395 | } |
| 396 | if ( $text === null || $text === '' ) { |
| 397 | return null; |
| 398 | } |
| 399 | |
| 400 | try { |
| 401 | return self::newFromTextThrow( (string)$text, (int)$defaultNamespace ); |
| 402 | } catch ( MalformedTitleException $ex ) { |
| 403 | return null; |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | /** |
| 408 | * Like Title::newFromText(), but throws MalformedTitleException when the title is invalid, |
| 409 | * rather than returning null. |
| 410 | * |
| 411 | * Titles returned by this method are guaranteed to be valid. |
| 412 | * Call canExist() to check if the Title represents an editable page. |
| 413 | * |
| 414 | * @note The Title instance returned by this method is not guaranteed to be a fresh instance. |
| 415 | * It may instead be a cached instance created previously, with references to it remaining |
| 416 | * elsewhere. |
| 417 | * |
| 418 | * @see Title::newFromText |
| 419 | * |
| 420 | * @since 1.25 |
| 421 | * @param string $text Title text to check |
| 422 | * @param int $defaultNamespace |
| 423 | * @throws MalformedTitleException If the title is invalid. |
| 424 | * @return Title |
| 425 | */ |
| 426 | public static function newFromTextThrow( $text, $defaultNamespace = NS_MAIN ) { |
| 427 | if ( is_object( $text ) ) { |
| 428 | throw new InvalidArgumentException( '$text must be a string, given an object' ); |
| 429 | } elseif ( $text === null ) { |
| 430 | // Legacy code relies on MalformedTitleException being thrown in this case |
| 431 | // TODO: fix(happens when URL with no title in it is parsed). |
| 432 | throw new MalformedTitleException( 'title-invalid-empty' ); |
| 433 | } |
| 434 | |
| 435 | $titleCache = self::getTitleCache(); |
| 436 | |
| 437 | // Wiki pages often contain multiple links to the same page. |
| 438 | // Title normalization and parsing can become expensive on pages with many |
| 439 | // links, so we can save a little time by caching them. |
| 440 | if ( $defaultNamespace === NS_MAIN ) { |
| 441 | $t = $titleCache->get( $text ); |
| 442 | if ( $t ) { |
| 443 | return $t; |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | // Convert things like é ā or 〗 into normalized (T16952) text |
| 448 | $filteredText = Sanitizer::decodeCharReferencesAndNormalize( $text ); |
| 449 | |
| 450 | $t = new Title(); |
| 451 | $dbKeyForm = strtr( $filteredText, ' ', '_' ); |
| 452 | |
| 453 | $t->secureAndSplit( $dbKeyForm, (int)$defaultNamespace ); |
| 454 | if ( $defaultNamespace === NS_MAIN ) { |
| 455 | $t->mInstanceCacheKey = $text; |
| 456 | $titleCache->set( $text, $t ); |
| 457 | } |
| 458 | return $t; |
| 459 | } |
| 460 | |
| 461 | /** |
| 462 | * Removes this instance from the internal title cache, so it can be modified in-place |
| 463 | * without polluting the cache (see T281337). |
| 464 | */ |
| 465 | private function uncache() { |
| 466 | if ( $this->mInstanceCacheKey !== null ) { |
| 467 | $titleCache = self::getTitleCache(); |
| 468 | $titleCache->clear( $this->mInstanceCacheKey ); |
| 469 | $this->mInstanceCacheKey = null; |
| 470 | } |
| 471 | } |
| 472 | |
| 473 | /** |
| 474 | * THIS IS NOT THE FUNCTION YOU WANT. Use Title::newFromText(). |
| 475 | * |
| 476 | * Example of wrong and broken code: |
| 477 | * $title = Title::newFromURL( $request->getText( 'title' ) ); |
| 478 | * |
| 479 | * Example of right code: |
| 480 | * $title = Title::newFromText( $request->getText( 'title' ) ); |
| 481 | * |
| 482 | * Create a new Title from URL-encoded text. Ensures that |
| 483 | * the given title's length does not exceed the maximum. |
| 484 | * |
| 485 | * @param string $url The title, as might be taken from a URL |
| 486 | * @return Title|null The new object, or null on an error |
| 487 | */ |
| 488 | public static function newFromURL( $url ) { |
| 489 | $t = new Title(); |
| 490 | |
| 491 | # For compatibility with old buggy URLs. "+" is usually not valid in titles, |
| 492 | # but some URLs used it as a space replacement and they still come |
| 493 | # from some external search tools. |
| 494 | if ( !str_contains( self::legalChars(), '+' ) ) { |
| 495 | $url = strtr( $url, '+', ' ' ); |
| 496 | } |
| 497 | |
| 498 | $dbKeyForm = strtr( $url, ' ', '_' ); |
| 499 | |
| 500 | try { |
| 501 | $t->secureAndSplit( $dbKeyForm ); |
| 502 | return $t; |
| 503 | } catch ( MalformedTitleException $ex ) { |
| 504 | return null; |
| 505 | } |
| 506 | } |
| 507 | |
| 508 | /** |
| 509 | * @return MapCacheLRU |
| 510 | */ |
| 511 | private static function getTitleCache() { |
| 512 | if ( self::$titleCache === null ) { |
| 513 | self::$titleCache = new MapCacheLRU( self::CACHE_MAX ); |
| 514 | } |
| 515 | return self::$titleCache; |
| 516 | } |
| 517 | |
| 518 | /** |
| 519 | * Create a new Title from an article ID |
| 520 | * |
| 521 | * @param int $id The page_id corresponding to the Title to create |
| 522 | * @param int $flags Bitfield of IDBAccessObject::READ_* constants |
| 523 | * @return Title|null The new object, or null on an error |
| 524 | */ |
| 525 | public static function newFromID( $id, $flags = 0 ) { |
| 526 | $pageStore = MediaWikiServices::getInstance()->getPageStore(); |
| 527 | $dbr = DBAccessObjectUtils::getDBFromRecency( |
| 528 | MediaWikiServices::getInstance()->getConnectionProvider(), |
| 529 | $flags |
| 530 | ); |
| 531 | $row = $dbr->newSelectQueryBuilder() |
| 532 | ->select( $pageStore->getSelectFields() ) |
| 533 | ->from( 'page' ) |
| 534 | ->where( [ 'page_id' => $id ] ) |
| 535 | ->recency( $flags ) |
| 536 | ->caller( __METHOD__ )->fetchRow(); |
| 537 | if ( $row !== false ) { |
| 538 | $title = self::newFromRow( $row ); |
| 539 | } else { |
| 540 | $title = null; |
| 541 | } |
| 542 | |
| 543 | return $title; |
| 544 | } |
| 545 | |
| 546 | /** |
| 547 | * Make a Title object from a DB row |
| 548 | * |
| 549 | * @param stdClass $row Object database row (needs at least page_title,page_namespace) |
| 550 | * @return Title |
| 551 | */ |
| 552 | public static function newFromRow( $row ) { |
| 553 | $t = self::makeTitle( $row->page_namespace, $row->page_title ); |
| 554 | $t->loadFromRow( $row ); |
| 555 | return $t; |
| 556 | } |
| 557 | |
| 558 | /** |
| 559 | * Load Title object fields from a DB row. |
| 560 | * If false is given, the title will be treated as non-existing. |
| 561 | * |
| 562 | * @param stdClass|false $row Database row |
| 563 | */ |
| 564 | public function loadFromRow( $row ) { |
| 565 | if ( $row ) { // page found |
| 566 | if ( isset( $row->page_id ) ) { |
| 567 | $this->mArticleID = (int)$row->page_id; |
| 568 | } |
| 569 | if ( isset( $row->page_len ) ) { |
| 570 | $this->mLength = (int)$row->page_len; |
| 571 | } |
| 572 | if ( isset( $row->page_is_redirect ) ) { |
| 573 | $this->mRedirect = (bool)$row->page_is_redirect; |
| 574 | } |
| 575 | if ( isset( $row->page_latest ) ) { |
| 576 | $this->mLatestID = (int)$row->page_latest; |
| 577 | } |
| 578 | if ( isset( $row->page_content_model ) ) { |
| 579 | $this->lazyFillContentModel( $row->page_content_model ); |
| 580 | } else { |
| 581 | $this->lazyFillContentModel( false ); // lazily-load getContentModel() |
| 582 | } |
| 583 | if ( isset( $row->page_lang ) ) { |
| 584 | $this->mDbPageLanguage = (string)$row->page_lang; |
| 585 | } |
| 586 | } else { // page not found |
| 587 | $this->mArticleID = 0; |
| 588 | $this->mLength = 0; |
| 589 | $this->mRedirect = false; |
| 590 | $this->mLatestID = 0; |
| 591 | $this->lazyFillContentModel( false ); // lazily-load getContentModel() |
| 592 | } |
| 593 | } |
| 594 | |
| 595 | /** |
| 596 | * Create a new Title from a namespace index and a DB key. |
| 597 | * |
| 598 | * It's assumed that $ns and $title are safe, for instance when |
| 599 | * they came directly from the database or a special page name, |
| 600 | * not from user input. |
| 601 | * |
| 602 | * No validation is applied. For convenience, spaces are normalized |
| 603 | * to underscores, so that e.g. user_text fields can be used directly. |
| 604 | * |
| 605 | * @note This method may return Title objects that are "invalid" |
| 606 | * according to the isValid() method. This is usually caused by |
| 607 | * configuration changes: e.g. a namespace that was once defined is |
| 608 | * no longer configured, or a character that was once allowed in |
| 609 | * titles is now forbidden. |
| 610 | * |
| 611 | * @param int $ns The namespace of the article |
| 612 | * @param string $title The unprefixed database key form |
| 613 | * @param string $fragment The link fragment (after the "#") |
| 614 | * @param string $interwiki The interwiki prefix |
| 615 | * @return Title The new object |
| 616 | */ |
| 617 | public static function makeTitle( $ns, $title, $fragment = '', $interwiki = '' ) { |
| 618 | $t = new Title(); |
| 619 | $t->mInterwiki = $interwiki; |
| 620 | $t->mFragment = self::normalizeFragment( $fragment ); |
| 621 | $t->mNamespace = $ns = (int)$ns; |
| 622 | $t->mDbkeyform = strtr( $title, ' ', '_' ); |
| 623 | $t->mArticleID = ( $ns >= 0 ) ? -1 : 0; |
| 624 | $t->mUrlform = wfUrlencode( $t->mDbkeyform ); |
| 625 | $t->mTextform = strtr( $title, '_', ' ' ); |
| 626 | return $t; |
| 627 | } |
| 628 | |
| 629 | /** |
| 630 | * Create a new Title from a namespace index and a DB key. |
| 631 | * The parameters will be checked for validity, which is a bit slower |
| 632 | * than makeTitle() but safer for user-provided data. |
| 633 | * |
| 634 | * The Title object returned by this method is guaranteed to be valid. |
| 635 | * Call canExist() to check if the Title represents an editable page. |
| 636 | * |
| 637 | * @param int $ns The namespace of the article |
| 638 | * @param string $title Database key form |
| 639 | * @param string $fragment The link fragment (after the "#") |
| 640 | * @param string $interwiki Interwiki prefix |
| 641 | * @return Title|null The new object, or null on an error |
| 642 | */ |
| 643 | public static function makeTitleSafe( $ns, $title, $fragment = '', $interwiki = '' ) { |
| 644 | // NOTE: ideally, this would just call makeTitle() and then isValid(), |
| 645 | // but presently, that means more overhead on a potential performance hotspot. |
| 646 | |
| 647 | if ( !MediaWikiServices::getInstance()->getNamespaceInfo()->exists( $ns ) ) { |
| 648 | return null; |
| 649 | } |
| 650 | |
| 651 | $t = new Title(); |
| 652 | $dbKeyForm = self::makeName( $ns, $title, $fragment, $interwiki, true ); |
| 653 | |
| 654 | try { |
| 655 | $t->secureAndSplit( $dbKeyForm ); |
| 656 | return $t; |
| 657 | } catch ( MalformedTitleException $ex ) { |
| 658 | return null; |
| 659 | } |
| 660 | } |
| 661 | |
| 662 | /** |
| 663 | * Create a new Title for the Main Page |
| 664 | * |
| 665 | * This uses the 'mainpage' interface message, which could be specified in |
| 666 | * `$wgForceUIMsgAsContentMsg`. If that is the case, then calling this method |
| 667 | * will use the user language, which would involve initialising the session |
| 668 | * via `RequestContext::getMain()->getLanguage()`. For session-less endpoints, |
| 669 | * be sure to pass in a MessageLocalizer (such as your own RequestContext or |
| 670 | * ResourceLoader Context) to prevent an error. |
| 671 | * |
| 672 | * @note The Title instance returned by this method is not guaranteed to be a fresh instance. |
| 673 | * It may instead be a cached instance created previously, with references to it remaining |
| 674 | * elsewhere. |
| 675 | * |
| 676 | * @param MessageLocalizer|null $localizer An optional context to use (since 1.34) |
| 677 | * @return Title |
| 678 | */ |
| 679 | public static function newMainPage( ?MessageLocalizer $localizer = null ) { |
| 680 | static $recursionGuard = false; |
| 681 | |
| 682 | $title = null; |
| 683 | |
| 684 | if ( !$recursionGuard ) { |
| 685 | $msg = $localizer ? $localizer->msg( 'mainpage' ) : wfMessage( 'mainpage' ); |
| 686 | |
| 687 | $recursionGuard = true; |
| 688 | $title = self::newFromText( $msg->inContentLanguage()->text() ); |
| 689 | $recursionGuard = false; |
| 690 | } |
| 691 | |
| 692 | // Every page renders at least one link to the Main Page (e.g. sidebar). |
| 693 | // Don't produce fatal errors that would make the wiki inaccessible, and hard to fix the |
| 694 | // invalid message. |
| 695 | // |
| 696 | // Fallback scenarios: |
| 697 | // * Recursion guard |
| 698 | // If the message contains a bare local interwiki (T297571), then |
| 699 | // Title::newFromText via TitleParser::splitTitleString can get back here. |
| 700 | // * Invalid title |
| 701 | // If the 'mainpage' message contains something that is invalid, Title::newFromText |
| 702 | // will return null. |
| 703 | |
| 704 | return $title ?? self::makeTitle( NS_MAIN, 'Main Page' ); |
| 705 | } |
| 706 | |
| 707 | /** |
| 708 | * Get a regex character class describing the legal characters in a link |
| 709 | * |
| 710 | * @return string The list of characters, not delimited |
| 711 | */ |
| 712 | public static function legalChars() { |
| 713 | global $wgLegalTitleChars; |
| 714 | return $wgLegalTitleChars; |
| 715 | } |
| 716 | |
| 717 | /** |
| 718 | * Utility method for converting a character sequence from bytes to Unicode. |
| 719 | * |
| 720 | * Primary usecase being converting $wgLegalTitleChars to a sequence usable in |
| 721 | * javascript, as PHP uses UTF-8 bytes where javascript uses Unicode code units. |
| 722 | * |
| 723 | * @param string $byteClass |
| 724 | * @return string |
| 725 | */ |
| 726 | public static function convertByteClassToUnicodeClass( $byteClass ) { |
| 727 | $length = strlen( $byteClass ); |
| 728 | // Input token queue |
| 729 | $x0 = $x1 = $x2 = ''; |
| 730 | // Decoded queue |
| 731 | $d0 = $d1 = ''; |
| 732 | // Decoded integer codepoints |
| 733 | $ord0 = $ord1 = $ord2 = 0; |
| 734 | // Re-encoded queue |
| 735 | $r0 = $r1 = $r2 = ''; |
| 736 | // Output |
| 737 | $out = ''; |
| 738 | // Flags |
| 739 | $allowUnicode = false; |
| 740 | for ( $pos = 0; $pos < $length; $pos++ ) { |
| 741 | // Shift the queues down |
| 742 | $x2 = $x1; |
| 743 | $x1 = $x0; |
| 744 | $d1 = $d0; |
| 745 | $ord2 = $ord1; |
| 746 | $ord1 = $ord0; |
| 747 | $r2 = $r1; |
| 748 | $r1 = $r0; |
| 749 | // Load the current input token and decoded values |
| 750 | $inChar = $byteClass[$pos]; |
| 751 | if ( $inChar === '\\' ) { |
| 752 | if ( preg_match( '/x([0-9a-fA-F]{2})/A', $byteClass, $m, 0, $pos + 1 ) ) { |
| 753 | $x0 = $inChar . $m[0]; |
| 754 | $d0 = chr( hexdec( $m[1] ) ); |
| 755 | $pos += strlen( $m[0] ); |
| 756 | } elseif ( preg_match( '/[0-7]{3}/A', $byteClass, $m, 0, $pos + 1 ) ) { |
| 757 | $x0 = $inChar . $m[0]; |
| 758 | $d0 = chr( octdec( $m[0] ) ); |
| 759 | $pos += strlen( $m[0] ); |
| 760 | } elseif ( $pos + 1 >= $length ) { |
| 761 | $x0 = $d0 = '\\'; |
| 762 | } else { |
| 763 | $d0 = $byteClass[$pos + 1]; |
| 764 | $x0 = $inChar . $d0; |
| 765 | $pos++; |
| 766 | } |
| 767 | } else { |
| 768 | $x0 = $d0 = $inChar; |
| 769 | } |
| 770 | $ord0 = ord( $d0 ); |
| 771 | // Load the current re-encoded value |
| 772 | if ( $ord0 < 32 || $ord0 == 0x7f ) { |
| 773 | $r0 = sprintf( '\x%02x', $ord0 ); |
| 774 | } elseif ( $ord0 >= 0x80 ) { |
| 775 | // Allow unicode if a single high-bit character appears |
| 776 | $r0 = sprintf( '\x%02x', $ord0 ); |
| 777 | $allowUnicode = true; |
| 778 | // @phan-suppress-next-line PhanParamSuspiciousOrder false positive |
| 779 | } elseif ( strpos( '-\\[]^', $d0 ) !== false ) { |
| 780 | $r0 = '\\' . $d0; |
| 781 | } else { |
| 782 | $r0 = $d0; |
| 783 | } |
| 784 | // Do the output |
| 785 | if ( $x0 !== '' && $x1 === '-' && $x2 !== '' ) { |
| 786 | // Range |
| 787 | if ( $ord2 > $ord0 ) { |
| 788 | // Empty range |
| 789 | } elseif ( $ord0 >= 0x80 ) { |
| 790 | // Unicode range |
| 791 | $allowUnicode = true; |
| 792 | if ( $ord2 < 0x80 ) { |
| 793 | // Keep the non-unicode section of the range |
| 794 | $out .= "$r2-\\x7F"; |
| 795 | } |
| 796 | } else { |
| 797 | // Normal range |
| 798 | $out .= "$r2-$r0"; |
| 799 | } |
| 800 | // Reset state to the initial value |
| 801 | // @phan-suppress-next-line PhanPluginRedundantAssignmentInLoop |
| 802 | $x0 = $x1 = $d0 = $d1 = $r0 = $r1 = ''; |
| 803 | } elseif ( $ord2 < 0x80 ) { |
| 804 | // ASCII character |
| 805 | $out .= $r2; |
| 806 | } |
| 807 | } |
| 808 | // @phan-suppress-next-line PhanSuspiciousValueComparison |
| 809 | if ( $ord1 < 0x80 ) { |
| 810 | $out .= $r1; |
| 811 | } |
| 812 | if ( $ord0 < 0x80 ) { |
| 813 | $out .= $r0; |
| 814 | } |
| 815 | if ( $allowUnicode ) { |
| 816 | $out .= '\u0080-\uFFFF'; |
| 817 | } |
| 818 | return $out; |
| 819 | } |
| 820 | |
| 821 | /** |
| 822 | * Make a prefixed DB key from a DB key and a namespace index |
| 823 | * |
| 824 | * @param int $ns Numerical representation of the namespace |
| 825 | * @param string $title The DB key form the title |
| 826 | * @param string $fragment The link fragment (after the "#") |
| 827 | * @param string $interwiki The interwiki prefix |
| 828 | * @param bool $canonicalNamespace If true, use the canonical name for |
| 829 | * $ns instead of the localized version. |
| 830 | * @return string The prefixed form of the title |
| 831 | */ |
| 832 | public static function makeName( $ns, $title, $fragment = '', $interwiki = '', |
| 833 | $canonicalNamespace = false |
| 834 | ) { |
| 835 | if ( $canonicalNamespace ) { |
| 836 | $namespace = MediaWikiServices::getInstance()->getNamespaceInfo()-> |
| 837 | getCanonicalName( $ns ); |
| 838 | } else { |
| 839 | $namespace = MediaWikiServices::getInstance()->getContentLanguage()->getNsText( $ns ); |
| 840 | } |
| 841 | if ( $namespace === false ) { |
| 842 | // See T165149. Awkward, but better than erroneously linking to the main namespace. |
| 843 | $namespace = self::makeName( NS_SPECIAL, "Badtitle/NS$ns", '', '', $canonicalNamespace ); |
| 844 | } |
| 845 | $name = $namespace === '' ? $title : "$namespace:$title"; |
| 846 | if ( strval( $interwiki ) != '' ) { |
| 847 | $name = "$interwiki:$name"; |
| 848 | } |
| 849 | if ( strval( $fragment ) != '' ) { |
| 850 | $name .= '#' . $fragment; |
| 851 | } |
| 852 | return $name; |
| 853 | } |
| 854 | |
| 855 | /** |
| 856 | * Callback for usort() to do title sorts by (namespace, title) |
| 857 | * |
| 858 | * @param LinkTarget|PageReference $a |
| 859 | * @param LinkTarget|PageReference $b |
| 860 | * |
| 861 | * @return int Result of string comparison, or namespace comparison |
| 862 | */ |
| 863 | public static function compare( $a, $b ) { |
| 864 | return $a->getNamespace() <=> $b->getNamespace() |
| 865 | ?: strcmp( $a->getDBkey(), $b->getDBkey() ); |
| 866 | } |
| 867 | |
| 868 | /** |
| 869 | * Returns true if the title is a valid link target, and that it has been |
| 870 | * properly normalized. This method checks that the title is syntactically valid, |
| 871 | * and that the namespace it refers to exists. |
| 872 | * |
| 873 | * Titles constructed using newFromText() or makeTitleSafe() are always valid. |
| 874 | * |
| 875 | * @note Code that wants to check whether the title can represent a page that can |
| 876 | * be created and edited should use canExist() instead. Examples of valid titles |
| 877 | * that cannot "exist" are Special pages, interwiki links, and on-page section links |
| 878 | * that only have the fragment part set. |
| 879 | * |
| 880 | * @see canExist() |
| 881 | * |
| 882 | * @return bool |
| 883 | */ |
| 884 | public function isValid() { |
| 885 | if ( $this->mIsValid !== null ) { |
| 886 | return $this->mIsValid; |
| 887 | } |
| 888 | |
| 889 | try { |
| 890 | // Optimization: Avoid Title::getFullText because that involves GenderCache |
| 891 | // and (unbatched) database queries. For validation, canonical namespace suffices. |
| 892 | $text = self::makeName( $this->mNamespace, $this->mDbkeyform, $this->mFragment, $this->mInterwiki, true ); |
| 893 | $titleParser = MediaWikiServices::getInstance()->getTitleParser(); |
| 894 | |
| 895 | $parts = $titleParser->splitTitleString( $text, $this->mNamespace ); |
| 896 | |
| 897 | // Check that nothing changed! |
| 898 | // This ensures that $text was already properly normalized. |
| 899 | if ( $parts['fragment'] !== $this->mFragment |
| 900 | || $parts['interwiki'] !== $this->mInterwiki |
| 901 | || $parts['local_interwiki'] !== $this->mLocalInterwiki |
| 902 | || $parts['namespace'] !== $this->mNamespace |
| 903 | || $parts['dbkey'] !== $this->mDbkeyform |
| 904 | ) { |
| 905 | $this->mIsValid = false; |
| 906 | return $this->mIsValid; |
| 907 | } |
| 908 | } catch ( MalformedTitleException $ex ) { |
| 909 | $this->mIsValid = false; |
| 910 | return $this->mIsValid; |
| 911 | } |
| 912 | |
| 913 | $this->mIsValid = true; |
| 914 | return $this->mIsValid; |
| 915 | } |
| 916 | |
| 917 | /** |
| 918 | * Determine whether the object refers to a page within |
| 919 | * this project (either this wiki or a wiki with a local |
| 920 | * interwiki, see https://www.mediawiki.org/wiki/Manual:Interwiki_table#iw_local ) |
| 921 | * |
| 922 | * @return bool True if this is an in-project interwiki link or a wikilink, false otherwise |
| 923 | */ |
| 924 | public function isLocal() { |
| 925 | if ( $this->isExternal() ) { |
| 926 | $iw = self::getInterwikiLookup()->fetch( $this->mInterwiki ); |
| 927 | if ( $iw ) { |
| 928 | return $iw->isLocal(); |
| 929 | } |
| 930 | } |
| 931 | return true; |
| 932 | } |
| 933 | |
| 934 | /** |
| 935 | * Get the interwiki prefix |
| 936 | * |
| 937 | * Use Title::isExternal to check if a interwiki is set |
| 938 | * |
| 939 | * @return string Interwiki prefix |
| 940 | */ |
| 941 | public function getInterwiki(): string { |
| 942 | return $this->mInterwiki; |
| 943 | } |
| 944 | |
| 945 | /** |
| 946 | * Was this a local interwiki link? |
| 947 | * |
| 948 | * @return bool |
| 949 | */ |
| 950 | public function wasLocalInterwiki() { |
| 951 | return $this->mLocalInterwiki; |
| 952 | } |
| 953 | |
| 954 | /** |
| 955 | * Determine whether the object refers to a page within |
| 956 | * this project and is transcludable. |
| 957 | * |
| 958 | * @return bool True if this is transcludable |
| 959 | */ |
| 960 | public function isTrans() { |
| 961 | if ( !$this->isExternal() ) { |
| 962 | return false; |
| 963 | } |
| 964 | |
| 965 | return self::getInterwikiLookup()->fetch( $this->mInterwiki )->isTranscludable(); |
| 966 | } |
| 967 | |
| 968 | /** |
| 969 | * Returns the DB name of the distant wiki which owns the object. |
| 970 | * |
| 971 | * @return string|false The DB name |
| 972 | */ |
| 973 | public function getTransWikiID() { |
| 974 | if ( !$this->isExternal() ) { |
| 975 | return false; |
| 976 | } |
| 977 | |
| 978 | return self::getInterwikiLookup()->fetch( $this->mInterwiki )->getWikiID(); |
| 979 | } |
| 980 | |
| 981 | /** |
| 982 | * Get a TitleValue object representing this Title. |
| 983 | * |
| 984 | * @note Not all valid Titles have a corresponding valid TitleValue |
| 985 | * (e.g. TitleValues cannot represent page-local links that have a |
| 986 | * fragment but no title text). |
| 987 | * |
| 988 | * @return TitleValue|null |
| 989 | */ |
| 990 | public function getTitleValue() { |
| 991 | if ( $this->mTitleValue === null ) { |
| 992 | try { |
| 993 | $this->mTitleValue = new TitleValue( |
| 994 | $this->mNamespace, |
| 995 | $this->mDbkeyform, |
| 996 | $this->mFragment, |
| 997 | $this->mInterwiki |
| 998 | ); |
| 999 | } catch ( InvalidArgumentException $ex ) { |
| 1000 | wfDebug( __METHOD__ . ': Can\'t create a TitleValue for [[' . |
| 1001 | $this->getPrefixedText() . ']]: ' . $ex->getMessage() ); |
| 1002 | } |
| 1003 | } |
| 1004 | |
| 1005 | return $this->mTitleValue; |
| 1006 | } |
| 1007 | |
| 1008 | /** |
| 1009 | * Get the text form (spaces not underscores) of the main part |
| 1010 | * |
| 1011 | * @return string Main part of the title |
| 1012 | */ |
| 1013 | public function getText(): string { |
| 1014 | return $this->mTextform; |
| 1015 | } |
| 1016 | |
| 1017 | /** |
| 1018 | * Get the URL-encoded form of the main part |
| 1019 | * |
| 1020 | * @return string Main part of the title, URL-encoded |
| 1021 | */ |
| 1022 | public function getPartialURL() { |
| 1023 | return $this->mUrlform; |
| 1024 | } |
| 1025 | |
| 1026 | /** |
| 1027 | * Get the main part with underscores |
| 1028 | * |
| 1029 | * @return string Main part of the title, with underscores |
| 1030 | */ |
| 1031 | public function getDBkey(): string { |
| 1032 | return $this->mDbkeyform; |
| 1033 | } |
| 1034 | |
| 1035 | /** |
| 1036 | * Get the namespace index, i.e. one of the NS_xxxx constants. |
| 1037 | * |
| 1038 | * @return int Namespace index |
| 1039 | */ |
| 1040 | public function getNamespace(): int { |
| 1041 | return $this->mNamespace; |
| 1042 | } |
| 1043 | |
| 1044 | /** |
| 1045 | * @param int $flags |
| 1046 | * |
| 1047 | * @return bool Whether $flags indicates that the latest information should be |
| 1048 | * read from the primary database, bypassing caches. |
| 1049 | */ |
| 1050 | private function shouldReadLatest( int $flags ) { |
| 1051 | return ( $flags & ( IDBAccessObject::READ_LATEST ) ) > 0; |
| 1052 | } |
| 1053 | |
| 1054 | /** |
| 1055 | * Get the page's content model id, see the CONTENT_MODEL_XXX constants. |
| 1056 | * |
| 1057 | * @todo Deprecate this in favor of SlotRecord::getModel() |
| 1058 | * |
| 1059 | * @param int $flags A bitfield of IDBAccessObject::READ_* constants |
| 1060 | * @return string Content model id |
| 1061 | */ |
| 1062 | public function getContentModel( $flags = 0 ) { |
| 1063 | if ( $this->mForcedContentModel ) { |
| 1064 | if ( !$this->mContentModel ) { |
| 1065 | throw new RuntimeException( 'Got out of sync; an empty model is being forced' ); |
| 1066 | } |
| 1067 | // Content model is locked to the currently loaded one |
| 1068 | return $this->mContentModel; |
| 1069 | } |
| 1070 | |
| 1071 | if ( $this->shouldReadLatest( $flags ) || !$this->mContentModel ) { |
| 1072 | $this->lazyFillContentModel( $this->getFieldFromPageStore( 'page_content_model', $flags ) ); |
| 1073 | } |
| 1074 | |
| 1075 | if ( !$this->mContentModel ) { |
| 1076 | $slotRoleregistry = MediaWikiServices::getInstance()->getSlotRoleRegistry(); |
| 1077 | $mainSlotHandler = $slotRoleregistry->getRoleHandler( 'main' ); |
| 1078 | $this->lazyFillContentModel( $mainSlotHandler->getDefaultModel( $this ) ); |
| 1079 | } |
| 1080 | |
| 1081 | return $this->mContentModel; |
| 1082 | } |
| 1083 | |
| 1084 | /** |
| 1085 | * Convenience method for checking a title's content model name |
| 1086 | * |
| 1087 | * @param string $id The content model ID (use the CONTENT_MODEL_XXX constants). |
| 1088 | * @return bool True if $this->getContentModel() == $id |
| 1089 | */ |
| 1090 | public function hasContentModel( $id ) { |
| 1091 | return $this->getContentModel() == $id; |
| 1092 | } |
| 1093 | |
| 1094 | /** |
| 1095 | * Set a proposed content model for the page for permissions checking |
| 1096 | * |
| 1097 | * This does not actually change the content model of a title in the DB. |
| 1098 | * It only affects this particular Title instance. The content model is |
| 1099 | * forced to remain this value until another setContentModel() call. |
| 1100 | * |
| 1101 | * ContentHandler::canBeUsedOn() should be checked before calling this |
| 1102 | * if there is any doubt regarding the applicability of the content model |
| 1103 | * |
| 1104 | * @warning This must only be used if the caller controls the further use of |
| 1105 | * this Title object, to avoid other code unexpectedly using the new value. |
| 1106 | * |
| 1107 | * @since 1.28 |
| 1108 | * @param string $model CONTENT_MODEL_XXX constant |
| 1109 | */ |
| 1110 | public function setContentModel( $model ) { |
| 1111 | if ( (string)$model === '' ) { |
| 1112 | throw new InvalidArgumentException( "Missing CONTENT_MODEL_* constant" ); |
| 1113 | } |
| 1114 | |
| 1115 | $this->uncache(); |
| 1116 | $this->mContentModel = $model; |
| 1117 | $this->mForcedContentModel = true; |
| 1118 | } |
| 1119 | |
| 1120 | /** |
| 1121 | * If the content model field is not frozen then update it with a retrieved value |
| 1122 | * |
| 1123 | * @param string|bool $model CONTENT_MODEL_XXX constant or false |
| 1124 | */ |
| 1125 | private function lazyFillContentModel( $model ) { |
| 1126 | if ( !$this->mForcedContentModel ) { |
| 1127 | $this->mContentModel = ( $model === false ) ? false : (string)$model; |
| 1128 | } |
| 1129 | } |
| 1130 | |
| 1131 | /** |
| 1132 | * Get the namespace text |
| 1133 | * |
| 1134 | * @return string|false Namespace name with underscores (not spaces), e.g. 'User_talk' |
| 1135 | */ |
| 1136 | public function getNsText() { |
| 1137 | if ( $this->isExternal() ) { |
| 1138 | // This probably shouldn't even happen, except for interwiki transclusion. |
| 1139 | // If possible, use the canonical name for the foreign namespace. |
| 1140 | if ( $this->mNamespace === NS_MAIN ) { |
| 1141 | // Optimisation |
| 1142 | return ''; |
| 1143 | } else { |
| 1144 | $nsText = MediaWikiServices::getInstance()->getNamespaceInfo()-> |
| 1145 | getCanonicalName( $this->mNamespace ); |
| 1146 | if ( $nsText !== false ) { |
| 1147 | return $nsText; |
| 1148 | } |
| 1149 | } |
| 1150 | } |
| 1151 | |
| 1152 | try { |
| 1153 | $formatter = self::getTitleFormatter(); |
| 1154 | return $formatter->getNamespaceName( $this->mNamespace, $this->mDbkeyform ); |
| 1155 | } catch ( InvalidArgumentException $ex ) { |
| 1156 | wfDebug( __METHOD__ . ': ' . $ex->getMessage() ); |
| 1157 | return false; |
| 1158 | } |
| 1159 | } |
| 1160 | |
| 1161 | /** |
| 1162 | * Get the namespace text of the subject (rather than talk) page |
| 1163 | * |
| 1164 | * @return string Namespace name with underscores (not spaces) |
| 1165 | */ |
| 1166 | public function getSubjectNsText() { |
| 1167 | $services = MediaWikiServices::getInstance(); |
| 1168 | return $services->getContentLanguage()-> |
| 1169 | getNsText( $services->getNamespaceInfo()->getSubject( $this->mNamespace ) ); |
| 1170 | } |
| 1171 | |
| 1172 | /** |
| 1173 | * Get the namespace text of the talk page |
| 1174 | * |
| 1175 | * @return string Namespace name with underscores (not spaces) |
| 1176 | */ |
| 1177 | public function getTalkNsText() { |
| 1178 | $services = MediaWikiServices::getInstance(); |
| 1179 | return $services->getContentLanguage()-> |
| 1180 | getNsText( $services->getNamespaceInfo()->getTalk( $this->mNamespace ) ); |
| 1181 | } |
| 1182 | |
| 1183 | /** |
| 1184 | * Can this title have a corresponding talk page? |
| 1185 | * |
| 1186 | * False for relative section links (with getText() === ''), |
| 1187 | * interwiki links (with getInterwiki() !== ''), and pages in NS_SPECIAL. |
| 1188 | * |
| 1189 | * @see NamespaceInfo::canHaveTalkPage |
| 1190 | * @since 1.30 |
| 1191 | * |
| 1192 | * @return bool True if this title either is a talk page or can have a talk page associated. |
| 1193 | */ |
| 1194 | public function canHaveTalkPage() { |
| 1195 | return MediaWikiServices::getInstance()->getNamespaceInfo()->canHaveTalkPage( $this ); |
| 1196 | } |
| 1197 | |
| 1198 | /** |
| 1199 | * Can this title represent a page in the wiki's database? |
| 1200 | * |
| 1201 | * Titles can exist as pages in the database if they are valid, and they |
| 1202 | * are not Special pages, interwiki links, or fragment-only links. |
| 1203 | * |
| 1204 | * @see isValid() |
| 1205 | * |
| 1206 | * @return bool true if and only if this title can be used to perform an edit. |
| 1207 | */ |
| 1208 | public function canExist(): bool { |
| 1209 | // NOTE: Don't use getArticleID(), we don't want to |
| 1210 | // trigger a database query here. This check is supposed to |
| 1211 | // act as an optimization, not add extra cost. |
| 1212 | if ( $this->mArticleID > 0 ) { |
| 1213 | // It exists, so it can exist. |
| 1214 | return true; |
| 1215 | } |
| 1216 | |
| 1217 | // NOTE: we call the relatively expensive isValid() method further down, |
| 1218 | // but we can bail out early if we already know the title is invalid. |
| 1219 | if ( $this->mIsValid === false ) { |
| 1220 | // It's invalid, so it can't exist. |
| 1221 | return false; |
| 1222 | } |
| 1223 | |
| 1224 | if ( $this->getNamespace() < NS_MAIN ) { |
| 1225 | // It's a special page, so it can't exist in the database. |
| 1226 | return false; |
| 1227 | } |
| 1228 | |
| 1229 | if ( $this->isExternal() ) { |
| 1230 | // If it's external, it's not local, so it can't exist. |
| 1231 | return false; |
| 1232 | } |
| 1233 | |
| 1234 | if ( $this->getText() === '' ) { |
| 1235 | // The title has no text, so it can't exist in the database. |
| 1236 | // It's probably an on-page section link, like "#something". |
| 1237 | return false; |
| 1238 | } |
| 1239 | |
| 1240 | // Double check that the title is valid. |
| 1241 | return $this->isValid(); |
| 1242 | } |
| 1243 | |
| 1244 | /** |
| 1245 | * Returns true if this is a special page. |
| 1246 | * |
| 1247 | * @return bool |
| 1248 | */ |
| 1249 | public function isSpecialPage() { |
| 1250 | return $this->mNamespace === NS_SPECIAL; |
| 1251 | } |
| 1252 | |
| 1253 | /** |
| 1254 | * Returns true if this title resolves to the named special page |
| 1255 | * |
| 1256 | * @param string $name The special page name |
| 1257 | * @return bool |
| 1258 | */ |
| 1259 | public function isSpecial( $name ) { |
| 1260 | if ( $this->isSpecialPage() ) { |
| 1261 | [ $thisName, /* $subpage */ ] = |
| 1262 | MediaWikiServices::getInstance()->getSpecialPageFactory()-> |
| 1263 | resolveAlias( $this->mDbkeyform ); |
| 1264 | if ( $name == $thisName ) { |
| 1265 | return true; |
| 1266 | } |
| 1267 | } |
| 1268 | return false; |
| 1269 | } |
| 1270 | |
| 1271 | /** |
| 1272 | * If the Title refers to a special page alias which is not the local default, resolve |
| 1273 | * the alias, and localise the name as necessary. Otherwise, return $this |
| 1274 | * |
| 1275 | * @return Title |
| 1276 | */ |
| 1277 | public function fixSpecialName() { |
| 1278 | if ( $this->isSpecialPage() ) { |
| 1279 | $spFactory = MediaWikiServices::getInstance()->getSpecialPageFactory(); |
| 1280 | [ $canonicalName, $par ] = $spFactory->resolveAlias( $this->mDbkeyform ); |
| 1281 | if ( $canonicalName ) { |
| 1282 | $localName = $spFactory->getLocalNameFor( $canonicalName, $par ); |
| 1283 | if ( $localName != $this->mDbkeyform ) { |
| 1284 | return self::makeTitle( NS_SPECIAL, $localName ); |
| 1285 | } |
| 1286 | } |
| 1287 | } |
| 1288 | return $this; |
| 1289 | } |
| 1290 | |
| 1291 | /** |
| 1292 | * Returns true if the title is inside the specified namespace. |
| 1293 | * |
| 1294 | * @param int $ns The namespace |
| 1295 | * @return bool |
| 1296 | * @since 1.19 |
| 1297 | */ |
| 1298 | public function inNamespace( int $ns ): bool { |
| 1299 | return MediaWikiServices::getInstance()->getNamespaceInfo()-> |
| 1300 | equals( $this->mNamespace, $ns ); |
| 1301 | } |
| 1302 | |
| 1303 | /** |
| 1304 | * Returns true if the title is inside one of the specified namespaces. |
| 1305 | * |
| 1306 | * @param int|int[] ...$namespaces The namespaces to check for |
| 1307 | * @return bool |
| 1308 | * @since 1.19 |
| 1309 | */ |
| 1310 | public function inNamespaces( ...$namespaces ) { |
| 1311 | if ( count( $namespaces ) > 0 && is_array( $namespaces[0] ) ) { |
| 1312 | $namespaces = $namespaces[0]; |
| 1313 | } |
| 1314 | |
| 1315 | foreach ( $namespaces as $ns ) { |
| 1316 | if ( $this->inNamespace( $ns ) ) { |
| 1317 | return true; |
| 1318 | } |
| 1319 | } |
| 1320 | |
| 1321 | return false; |
| 1322 | } |
| 1323 | |
| 1324 | /** |
| 1325 | * Returns true if the title has the same subject namespace as the |
| 1326 | * namespace specified. |
| 1327 | * For example this method will take NS_USER and return true if namespace |
| 1328 | * is either NS_USER or NS_USER_TALK since both of them have NS_USER |
| 1329 | * as their subject namespace. |
| 1330 | * |
| 1331 | * This is MUCH simpler than individually testing for equivalence |
| 1332 | * against both NS_USER and NS_USER_TALK, and is also forward compatible. |
| 1333 | * @since 1.19 |
| 1334 | * @param int $ns |
| 1335 | * @return bool |
| 1336 | */ |
| 1337 | public function hasSubjectNamespace( $ns ) { |
| 1338 | return MediaWikiServices::getInstance()->getNamespaceInfo()-> |
| 1339 | subjectEquals( $this->mNamespace, $ns ); |
| 1340 | } |
| 1341 | |
| 1342 | /** |
| 1343 | * Is this Title in a namespace which contains content? |
| 1344 | * In other words, is this a content page, for the purposes of calculating |
| 1345 | * statistics, etc? |
| 1346 | * |
| 1347 | * @return bool |
| 1348 | */ |
| 1349 | public function isContentPage() { |
| 1350 | return MediaWikiServices::getInstance()->getNamespaceInfo()-> |
| 1351 | isContent( $this->mNamespace ); |
| 1352 | } |
| 1353 | |
| 1354 | /** |
| 1355 | * Would anybody with sufficient privileges be able to move this page? |
| 1356 | * Some pages just aren't movable. |
| 1357 | * |
| 1358 | * @return bool |
| 1359 | */ |
| 1360 | public function isMovable() { |
| 1361 | $services = MediaWikiServices::getInstance(); |
| 1362 | if ( |
| 1363 | !$services->getNamespaceInfo()-> |
| 1364 | isMovable( $this->mNamespace ) || $this->isExternal() |
| 1365 | ) { |
| 1366 | // Interwiki title or immovable namespace. Hooks don't get to override here |
| 1367 | return false; |
| 1368 | } |
| 1369 | |
| 1370 | $result = true; |
| 1371 | ( new HookRunner( $services->getHookContainer() ) )->onTitleIsMovable( $this, $result ); |
| 1372 | return $result; |
| 1373 | } |
| 1374 | |
| 1375 | /** |
| 1376 | * Is this the mainpage? |
| 1377 | * @see T302186 |
| 1378 | * |
| 1379 | * @since 1.18 |
| 1380 | * @return bool |
| 1381 | */ |
| 1382 | public function isMainPage() { |
| 1383 | /** @var Title|null */ |
| 1384 | static $cachedMainPage; |
| 1385 | $cachedMainPage ??= self::newMainPage(); |
| 1386 | return $this->equals( $cachedMainPage ); |
| 1387 | } |
| 1388 | |
| 1389 | /** |
| 1390 | * Is this a subpage? |
| 1391 | * |
| 1392 | * @return bool |
| 1393 | */ |
| 1394 | public function isSubpage() { |
| 1395 | return MediaWikiServices::getInstance() |
| 1396 | ->getNamespaceInfo() |
| 1397 | ->hasSubpages( $this->mNamespace ) |
| 1398 | && str_contains( $this->getText(), '/' ); |
| 1399 | } |
| 1400 | |
| 1401 | /** |
| 1402 | * Is this a conversion table for the LanguageConverter? |
| 1403 | * |
| 1404 | * @return bool |
| 1405 | */ |
| 1406 | public function isConversionTable() { |
| 1407 | // @todo ConversionTable should become a separate content model. |
| 1408 | // @todo And the prefix should be localized, too! |
| 1409 | |
| 1410 | return $this->mNamespace === NS_MEDIAWIKI && |
| 1411 | str_starts_with( $this->getText(), 'Conversiontable/' ); |
| 1412 | } |
| 1413 | |
| 1414 | /** |
| 1415 | * Does that page contain wikitext, or it is JS, CSS or whatever? |
| 1416 | * |
| 1417 | * @return bool |
| 1418 | */ |
| 1419 | public function isWikitextPage() { |
| 1420 | return $this->hasContentModel( CONTENT_MODEL_WIKITEXT ); |
| 1421 | } |
| 1422 | |
| 1423 | /** |
| 1424 | * Could this MediaWiki namespace page contain custom CSS, JSON, or JavaScript for the |
| 1425 | * global UI. This is generally true for pages in the MediaWiki namespace having |
| 1426 | * CONTENT_MODEL_CSS, CONTENT_MODEL_JSON, or CONTENT_MODEL_JAVASCRIPT. |
| 1427 | * |
| 1428 | * This method does *not* return true for per-user JS/JSON/CSS. Use isUserConfigPage() |
| 1429 | * for that! |
| 1430 | * |
| 1431 | * Note that this method should not return true for pages that contain and show |
| 1432 | * "inactive" CSS, JSON, or JS. |
| 1433 | * |
| 1434 | * @return bool |
| 1435 | * @since 1.31 |
| 1436 | */ |
| 1437 | public function isSiteConfigPage() { |
| 1438 | return ( |
| 1439 | $this->isSiteCssConfigPage() |
| 1440 | || $this->isSiteJsonConfigPage() |
| 1441 | || $this->isSiteJsConfigPage() |
| 1442 | ); |
| 1443 | } |
| 1444 | |
| 1445 | /** |
| 1446 | * Is this a "config" (.css, .json, or .js) subpage of a user page? |
| 1447 | * |
| 1448 | * @return bool |
| 1449 | * @since 1.31 |
| 1450 | */ |
| 1451 | public function isUserConfigPage() { |
| 1452 | return ( |
| 1453 | $this->isUserCssConfigPage() |
| 1454 | || $this->isUserJsonConfigPage() |
| 1455 | || $this->isUserJsConfigPage() |
| 1456 | ); |
| 1457 | } |
| 1458 | |
| 1459 | /** |
| 1460 | * Trim down a .css, .json, or .js subpage title to get the corresponding skin name |
| 1461 | * |
| 1462 | * @return string Containing skin name from .css, .json, or .js subpage title |
| 1463 | * @since 1.31 |
| 1464 | */ |
| 1465 | public function getSkinFromConfigSubpage() { |
| 1466 | $text = $this->getText(); |
| 1467 | $lastSlashPos = $this->findSubpageDivider( $text, -1 ); |
| 1468 | if ( $lastSlashPos === false ) { |
| 1469 | return ''; |
| 1470 | } |
| 1471 | |
| 1472 | $lastDot = strrpos( $text, '.', $lastSlashPos ); |
| 1473 | if ( $lastDot === false ) { |
| 1474 | return ''; |
| 1475 | } |
| 1476 | |
| 1477 | return substr( $text, $lastSlashPos + 1, $lastDot - $lastSlashPos - 1 ); |
| 1478 | } |
| 1479 | |
| 1480 | /** |
| 1481 | * Is this a CSS "config" subpage of a user page? |
| 1482 | * |
| 1483 | * @return bool |
| 1484 | * @since 1.31 |
| 1485 | */ |
| 1486 | public function isUserCssConfigPage() { |
| 1487 | return ( |
| 1488 | $this->mNamespace === NS_USER |
| 1489 | && $this->isSubpage() |
| 1490 | && $this->hasContentModel( CONTENT_MODEL_CSS ) |
| 1491 | ); |
| 1492 | } |
| 1493 | |
| 1494 | /** |
| 1495 | * Is this a JSON "config" subpage of a user page? |
| 1496 | * |
| 1497 | * @return bool |
| 1498 | * @since 1.31 |
| 1499 | */ |
| 1500 | public function isUserJsonConfigPage() { |
| 1501 | return ( |
| 1502 | $this->mNamespace === NS_USER |
| 1503 | && $this->isSubpage() |
| 1504 | && $this->hasContentModel( CONTENT_MODEL_JSON ) |
| 1505 | ); |
| 1506 | } |
| 1507 | |
| 1508 | /** |
| 1509 | * Is this a JS "config" subpage of a user page? |
| 1510 | * |
| 1511 | * @return bool |
| 1512 | * @since 1.31 |
| 1513 | */ |
| 1514 | public function isUserJsConfigPage() { |
| 1515 | return ( |
| 1516 | $this->mNamespace === NS_USER |
| 1517 | && $this->isSubpage() |
| 1518 | && $this->hasContentModel( CONTENT_MODEL_JAVASCRIPT ) |
| 1519 | ); |
| 1520 | } |
| 1521 | |
| 1522 | /** |
| 1523 | * Is this a sitewide CSS "config" page? |
| 1524 | * |
| 1525 | * @return bool |
| 1526 | * @since 1.32 |
| 1527 | */ |
| 1528 | public function isSiteCssConfigPage() { |
| 1529 | return ( |
| 1530 | $this->mNamespace === NS_MEDIAWIKI |
| 1531 | && ( |
| 1532 | $this->hasContentModel( CONTENT_MODEL_CSS ) |
| 1533 | // paranoia - a MediaWiki: namespace page with mismatching extension and content |
| 1534 | // model is probably by mistake and might get handled incorrectly (see e.g. T112937) |
| 1535 | || str_ends_with( $this->mDbkeyform, '.css' ) |
| 1536 | ) |
| 1537 | ); |
| 1538 | } |
| 1539 | |
| 1540 | /** |
| 1541 | * Is this a sitewide JSON "config" page? |
| 1542 | * |
| 1543 | * @return bool |
| 1544 | * @since 1.32 |
| 1545 | */ |
| 1546 | public function isSiteJsonConfigPage() { |
| 1547 | return ( |
| 1548 | $this->mNamespace === NS_MEDIAWIKI |
| 1549 | && ( |
| 1550 | $this->hasContentModel( CONTENT_MODEL_JSON ) |
| 1551 | // paranoia - a MediaWiki: namespace page with mismatching extension and content |
| 1552 | // model is probably by mistake and might get handled incorrectly (see e.g. T112937) |
| 1553 | || str_ends_with( $this->mDbkeyform, '.json' ) |
| 1554 | ) |
| 1555 | ); |
| 1556 | } |
| 1557 | |
| 1558 | /** |
| 1559 | * Is this a sitewide JS "config" page? |
| 1560 | * |
| 1561 | * @return bool |
| 1562 | * @since 1.31 |
| 1563 | */ |
| 1564 | public function isSiteJsConfigPage() { |
| 1565 | return ( |
| 1566 | $this->mNamespace === NS_MEDIAWIKI |
| 1567 | && ( |
| 1568 | $this->hasContentModel( CONTENT_MODEL_JAVASCRIPT ) |
| 1569 | // paranoia - a MediaWiki: namespace page with mismatching extension and content |
| 1570 | // model is probably by mistake and might get handled incorrectly (see e.g. T112937) |
| 1571 | || str_ends_with( $this->mDbkeyform, '.js' ) |
| 1572 | ) |
| 1573 | ); |
| 1574 | } |
| 1575 | |
| 1576 | /** |
| 1577 | * Is this a message which can contain raw HTML? |
| 1578 | * |
| 1579 | * @return bool |
| 1580 | * @since 1.32 |
| 1581 | */ |
| 1582 | public function isRawHtmlMessage() { |
| 1583 | global $wgRawHtmlMessages; |
| 1584 | |
| 1585 | if ( !$this->inNamespace( NS_MEDIAWIKI ) ) { |
| 1586 | return false; |
| 1587 | } |
| 1588 | $message = lcfirst( $this->getRootTitle()->getDBkey() ); |
| 1589 | return in_array( $message, $wgRawHtmlMessages, true ); |
| 1590 | } |
| 1591 | |
| 1592 | /** |
| 1593 | * Is this a talk page of some sort? |
| 1594 | * |
| 1595 | * @return bool |
| 1596 | */ |
| 1597 | public function isTalkPage() { |
| 1598 | return MediaWikiServices::getInstance()->getNamespaceInfo()-> |
| 1599 | isTalk( $this->mNamespace ); |
| 1600 | } |
| 1601 | |
| 1602 | /** |
| 1603 | * Get a Title object associated with the talk page of this article |
| 1604 | * |
| 1605 | * @deprecated since 1.34, use getTalkPageIfDefined() or NamespaceInfo::getTalkPage() |
| 1606 | * with NamespaceInfo::canHaveTalkPage(). Note that the new method will |
| 1607 | * throw if asked for the talk page of a section-only link, or of an interwiki |
| 1608 | * link. |
| 1609 | * @return Title The object for the talk page |
| 1610 | * @throws MWException if $target doesn't have talk pages, e.g. because it's in NS_SPECIAL |
| 1611 | * or because it's a relative link, or an interwiki link. |
| 1612 | */ |
| 1613 | public function getTalkPage() { |
| 1614 | // NOTE: The equivalent code in NamespaceInfo is less lenient about producing invalid titles. |
| 1615 | // Instead of failing on invalid titles, let's just log the issue for now. |
| 1616 | // See the discussion on T227817. |
| 1617 | |
| 1618 | // Is this the same title? |
| 1619 | $talkNS = MediaWikiServices::getInstance()->getNamespaceInfo()->getTalk( $this->mNamespace ); |
| 1620 | if ( $this->mNamespace == $talkNS ) { |
| 1621 | return $this; |
| 1622 | } |
| 1623 | |
| 1624 | $title = self::makeTitle( $talkNS, $this->mDbkeyform ); |
| 1625 | |
| 1626 | $this->warnIfPageCannotExist( $title, __METHOD__ ); |
| 1627 | |
| 1628 | return $title; |
| 1629 | // TODO: replace the above with the code below: |
| 1630 | // return self::castFromLinkTarget( |
| 1631 | // MediaWikiServices::getInstance()->getNamespaceInfo()->getTalkPage( $this ) ); |
| 1632 | } |
| 1633 | |
| 1634 | /** |
| 1635 | * Get a Title object associated with the talk page of this article, |
| 1636 | * if such a talk page can exist. |
| 1637 | * |
| 1638 | * @since 1.30 |
| 1639 | * |
| 1640 | * @return Title|null The object for the talk page, |
| 1641 | * or null if no associated talk page can exist, according to canHaveTalkPage(). |
| 1642 | */ |
| 1643 | public function getTalkPageIfDefined() { |
| 1644 | if ( !$this->canHaveTalkPage() ) { |
| 1645 | return null; |
| 1646 | } |
| 1647 | |
| 1648 | return $this->getTalkPage(); |
| 1649 | } |
| 1650 | |
| 1651 | /** |
| 1652 | * Get a title object associated with the subject page of this |
| 1653 | * talk page |
| 1654 | * |
| 1655 | * @deprecated since 1.34, use NamespaceInfo::getSubjectPage |
| 1656 | * @return Title The object for the subject page |
| 1657 | */ |
| 1658 | public function getSubjectPage() { |
| 1659 | // Is this the same title? |
| 1660 | $subjectNS = MediaWikiServices::getInstance()->getNamespaceInfo() |
| 1661 | ->getSubject( $this->mNamespace ); |
| 1662 | if ( $this->mNamespace == $subjectNS ) { |
| 1663 | return $this; |
| 1664 | } |
| 1665 | // NOTE: The equivalent code in NamespaceInfo is less lenient about producing invalid titles. |
| 1666 | // Instead of failing on invalid titles, let's just log the issue for now. |
| 1667 | // See the discussion on T227817. |
| 1668 | $title = self::makeTitle( $subjectNS, $this->mDbkeyform ); |
| 1669 | |
| 1670 | $this->warnIfPageCannotExist( $title, __METHOD__ ); |
| 1671 | |
| 1672 | return $title; |
| 1673 | // TODO: replace the above with the code below: |
| 1674 | // return self::castFromLinkTarget( |
| 1675 | // MediaWikiServices::getInstance()->getNamespaceInfo()->getSubjectPage( $this ) ); |
| 1676 | } |
| 1677 | |
| 1678 | /** |
| 1679 | * @param Title $title |
| 1680 | * @param string $method |
| 1681 | * |
| 1682 | * @return bool whether a warning was issued |
| 1683 | */ |
| 1684 | private function warnIfPageCannotExist( Title $title, $method ) { |
| 1685 | if ( $this->getText() == '' ) { |
| 1686 | wfLogWarning( |
| 1687 | $method . ': called on empty title ' . $this->getFullText() . ', returning ' |
| 1688 | . $title->getFullText() |
| 1689 | ); |
| 1690 | |
| 1691 | return true; |
| 1692 | } |
| 1693 | |
| 1694 | if ( $this->getInterwiki() !== '' ) { |
| 1695 | wfLogWarning( |
| 1696 | $method . ': called on interwiki title ' . $this->getFullText() . ', returning ' |
| 1697 | . $title->getFullText() |
| 1698 | ); |
| 1699 | |
| 1700 | return true; |
| 1701 | } |
| 1702 | |
| 1703 | return false; |
| 1704 | } |
| 1705 | |
| 1706 | /** |
| 1707 | * Get the other title for this page, if this is a subject page |
| 1708 | * get the talk page, if it is a subject page get the talk page |
| 1709 | * |
| 1710 | * @deprecated since 1.34, use NamespaceInfo::getAssociatedPage |
| 1711 | * @since 1.25 |
| 1712 | * @throws MWException If the page doesn't have an other page |
| 1713 | * @return Title |
| 1714 | */ |
| 1715 | public function getOtherPage() { |
| 1716 | // NOTE: Depend on the methods in this class instead of their equivalent in NamespaceInfo, |
| 1717 | // until their semantics has become exactly the same. |
| 1718 | // See the discussion on T227817. |
| 1719 | if ( $this->isSpecialPage() ) { |
| 1720 | throw new MWException( 'Special pages cannot have other pages' ); |
| 1721 | } |
| 1722 | if ( $this->isTalkPage() ) { |
| 1723 | return $this->getSubjectPage(); |
| 1724 | } else { |
| 1725 | if ( !$this->canHaveTalkPage() ) { |
| 1726 | throw new MWException( "{$this->getPrefixedText()} does not have an other page" ); |
| 1727 | } |
| 1728 | return $this->getTalkPage(); |
| 1729 | } |
| 1730 | // TODO: replace the above with the code below: |
| 1731 | // return self::castFromLinkTarget( |
| 1732 | // MediaWikiServices::getInstance()->getNamespaceInfo()->getAssociatedPage( $this ) ); |
| 1733 | } |
| 1734 | |
| 1735 | /** |
| 1736 | * Get the Title fragment (i.e.\ the bit after the #) in text form |
| 1737 | * |
| 1738 | * Use Title::hasFragment to check for a fragment |
| 1739 | * |
| 1740 | * @return string Title fragment |
| 1741 | */ |
| 1742 | public function getFragment(): string { |
| 1743 | return $this->mFragment; |
| 1744 | } |
| 1745 | |
| 1746 | /** |
| 1747 | * Get the fragment in URL form, including the "#" character if there is one |
| 1748 | * |
| 1749 | * @return string Fragment in URL form |
| 1750 | */ |
| 1751 | public function getFragmentForURL() { |
| 1752 | if ( !$this->hasFragment() ) { |
| 1753 | return ''; |
| 1754 | } elseif ( $this->isExternal() ) { |
| 1755 | // Note: If the interwiki is unknown, it's treated as a namespace on the local wiki, |
| 1756 | // so we treat it like a local interwiki. |
| 1757 | $interwiki = self::getInterwikiLookup()->fetch( $this->mInterwiki ); |
| 1758 | if ( $interwiki && !$interwiki->isLocal() ) { |
| 1759 | return '#' . Sanitizer::escapeIdForExternalInterwiki( $this->mFragment ); |
| 1760 | } |
| 1761 | } |
| 1762 | |
| 1763 | return '#' . Sanitizer::escapeIdForLink( $this->mFragment ); |
| 1764 | } |
| 1765 | |
| 1766 | /** |
| 1767 | * Set the fragment for this title. Removes the first character from the |
| 1768 | * specified fragment before setting, so it assumes you're passing it with |
| 1769 | * an initial "#". |
| 1770 | * |
| 1771 | * @warning This must only be used if the caller controls the further use of |
| 1772 | * this Title object, to avoid other code unexpectedly using the new value. |
| 1773 | * |
| 1774 | * @param string $fragment Text |
| 1775 | */ |
| 1776 | public function setFragment( $fragment ) { |
| 1777 | $this->uncache(); |
| 1778 | $this->mFragment = self::normalizeFragment( $fragment ); |
| 1779 | } |
| 1780 | |
| 1781 | /** |
| 1782 | * Creates a new Title for a different fragment of the same page. |
| 1783 | * |
| 1784 | * @since 1.27 |
| 1785 | * @param string $fragment |
| 1786 | * @return Title |
| 1787 | */ |
| 1788 | public function createFragmentTarget( string $fragment ): self { |
| 1789 | return self::makeTitle( |
| 1790 | $this->mNamespace, |
| 1791 | $this->getText(), |
| 1792 | $fragment, |
| 1793 | $this->mInterwiki |
| 1794 | ); |
| 1795 | } |
| 1796 | |
| 1797 | /** |
| 1798 | * Normalizes fragment part of the title. |
| 1799 | * |
| 1800 | * @param string $fragment |
| 1801 | * @return string |
| 1802 | */ |
| 1803 | private static function normalizeFragment( $fragment ) { |
| 1804 | if ( str_starts_with( $fragment, '#' ) ) { |
| 1805 | $fragment = substr( $fragment, 1 ); |
| 1806 | } |
| 1807 | return strtr( $fragment, '_', ' ' ); |
| 1808 | } |
| 1809 | |
| 1810 | /** |
| 1811 | * Prefix some arbitrary text with the namespace or interwiki prefix |
| 1812 | * of this object |
| 1813 | * |
| 1814 | * @param string $name The text |
| 1815 | * @return string The prefixed text |
| 1816 | */ |
| 1817 | private function prefix( $name ) { |
| 1818 | $p = ''; |
| 1819 | if ( $this->isExternal() ) { |
| 1820 | $p = $this->mInterwiki . ':'; |
| 1821 | } |
| 1822 | |
| 1823 | if ( $this->mNamespace != 0 ) { |
| 1824 | $nsText = $this->getNsText(); |
| 1825 | |
| 1826 | if ( $nsText === false ) { |
| 1827 | // See T165149. Awkward, but better than erroneously linking to the main namespace. |
| 1828 | $nsText = MediaWikiServices::getInstance()->getContentLanguage()-> |
| 1829 | getNsText( NS_SPECIAL ) . ":Badtitle/NS{$this->mNamespace}"; |
| 1830 | } |
| 1831 | |
| 1832 | $p .= $nsText . ':'; |
| 1833 | } |
| 1834 | return $p . $name; |
| 1835 | } |
| 1836 | |
| 1837 | /** |
| 1838 | * Get the prefixed database key form |
| 1839 | * |
| 1840 | * @return string The prefixed title, with underscores and |
| 1841 | * any interwiki and namespace prefixes |
| 1842 | */ |
| 1843 | public function getPrefixedDBkey() { |
| 1844 | $s = $this->prefix( $this->mDbkeyform ); |
| 1845 | $s = strtr( $s, ' ', '_' ); |
| 1846 | return $s; |
| 1847 | } |
| 1848 | |
| 1849 | /** |
| 1850 | * Get the prefixed title with spaces. |
| 1851 | * This is the form usually used for display |
| 1852 | * |
| 1853 | * @return string The prefixed title, with spaces |
| 1854 | */ |
| 1855 | public function getPrefixedText() { |
| 1856 | if ( $this->prefixedText === null ) { |
| 1857 | $s = $this->prefix( $this->mTextform ); |
| 1858 | $s = strtr( $s, '_', ' ' ); |
| 1859 | $this->prefixedText = $s; |
| 1860 | } |
| 1861 | return $this->prefixedText; |
| 1862 | } |
| 1863 | |
| 1864 | /** |
| 1865 | * Return a string representation of this title |
| 1866 | * |
| 1867 | * @return string Representation of this title |
| 1868 | */ |
| 1869 | public function __toString(): string { |
| 1870 | return $this->getPrefixedText(); |
| 1871 | } |
| 1872 | |
| 1873 | /** |
| 1874 | * Get the prefixed title with spaces, plus any fragment |
| 1875 | * (part beginning with '#') |
| 1876 | * |
| 1877 | * @return string The prefixed title, with spaces and the fragment, including '#' |
| 1878 | */ |
| 1879 | public function getFullText() { |
| 1880 | $text = $this->getPrefixedText(); |
| 1881 | if ( $this->hasFragment() ) { |
| 1882 | $text .= '#' . $this->mFragment; |
| 1883 | } |
| 1884 | return $text; |
| 1885 | } |
| 1886 | |
| 1887 | /** |
| 1888 | * Finds the first or last subpage divider (slash) in the string. |
| 1889 | * Any leading sequence of slashes is ignored, since it does not divide |
| 1890 | * two parts of the string. Considering leading slashes dividers would |
| 1891 | * result in empty root title or base title (T229443). |
| 1892 | * |
| 1893 | * Note that trailing slashes are considered dividers, and empty subpage |
| 1894 | * names are allowed. |
| 1895 | * |
| 1896 | * @param string $text |
| 1897 | * @param int $dir -1 for the last or +1 for the first divider. |
| 1898 | * |
| 1899 | * @return false|int |
| 1900 | */ |
| 1901 | private function findSubpageDivider( $text, $dir ) { |
| 1902 | if ( $dir > 0 ) { |
| 1903 | // Skip leading slashes, but keep the last one when there is nothing but slashes |
| 1904 | $bottom = strspn( $text, '/', 0, -1 ); |
| 1905 | $idx = strpos( $text, '/', $bottom ); |
| 1906 | } else { |
| 1907 | // Any slash from the end can be a divider, as subpage names can be empty |
| 1908 | $idx = strrpos( $text, '/' ); |
| 1909 | } |
| 1910 | |
| 1911 | // The first character can never be a divider, as that would result in an empty base |
| 1912 | return $idx === 0 ? false : $idx; |
| 1913 | } |
| 1914 | |
| 1915 | /** |
| 1916 | * Whether this Title's namespace has subpages enabled. |
| 1917 | * @return bool |
| 1918 | */ |
| 1919 | private function hasSubpagesEnabled() { |
| 1920 | return MediaWikiServices::getInstance()->getNamespaceInfo()-> |
| 1921 | hasSubpages( $this->mNamespace ); |
| 1922 | } |
| 1923 | |
| 1924 | /** |
| 1925 | * Get the root page name text without a namespace, i.e. the leftmost part before any slashes |
| 1926 | * |
| 1927 | * @note the return value may contain trailing whitespace and is thus |
| 1928 | * not safe for use with makeTitle or TitleValue. |
| 1929 | * |
| 1930 | * @par Example: |
| 1931 | * @code |
| 1932 | * Title::newFromText('User:Foo/Bar/Baz')->getRootText(); |
| 1933 | * # returns: 'Foo' |
| 1934 | * @endcode |
| 1935 | * |
| 1936 | * @return string Root name |
| 1937 | * @since 1.20 |
| 1938 | */ |
| 1939 | public function getRootText() { |
| 1940 | $text = $this->getText(); |
| 1941 | if ( !$this->hasSubpagesEnabled() ) { |
| 1942 | return $text; |
| 1943 | } |
| 1944 | |
| 1945 | $firstSlashPos = $this->findSubpageDivider( $text, +1 ); |
| 1946 | // Don't discard the real title if there's no subpage involved |
| 1947 | if ( $firstSlashPos === false ) { |
| 1948 | return $text; |
| 1949 | } |
| 1950 | |
| 1951 | return substr( $text, 0, $firstSlashPos ); |
| 1952 | } |
| 1953 | |
| 1954 | /** |
| 1955 | * Get the root page name title, i.e. the leftmost part before any slashes |
| 1956 | * |
| 1957 | * @par Example: |
| 1958 | * @code |
| 1959 | * Title::newFromText('User:Foo/Bar/Baz')->getRootTitle(); |
| 1960 | * # returns: Title{User:Foo} |
| 1961 | * @endcode |
| 1962 | * |
| 1963 | * @return Title |
| 1964 | * @since 1.20 |
| 1965 | */ |
| 1966 | public function getRootTitle() { |
| 1967 | $title = self::makeTitleSafe( $this->mNamespace, $this->getRootText() ); |
| 1968 | |
| 1969 | if ( !$title ) { |
| 1970 | if ( !$this->isValid() ) { |
| 1971 | // If the title wasn't valid in the first place, we can't expect |
| 1972 | // to successfully parse it. T290194 |
| 1973 | return $this; |
| 1974 | } |
| 1975 | |
| 1976 | Assert::postcondition( |
| 1977 | $title !== null, |
| 1978 | 'makeTitleSafe() should always return a Title for the text ' . |
| 1979 | 'returned by getRootText().' |
| 1980 | ); |
| 1981 | } |
| 1982 | |
| 1983 | return $title; |
| 1984 | } |
| 1985 | |
| 1986 | /** |
| 1987 | * Get the base page name without a namespace, i.e. the part before the subpage name |
| 1988 | * |
| 1989 | * @note the return value may contain trailing whitespace and is thus |
| 1990 | * not safe for use with makeTitle or TitleValue. |
| 1991 | * |
| 1992 | * @par Example: |
| 1993 | * @code |
| 1994 | * Title::newFromText('User:Foo/Bar/Baz')->getBaseText(); |
| 1995 | * # returns: 'Foo/Bar' |
| 1996 | * @endcode |
| 1997 | * |
| 1998 | * @return string Base name |
| 1999 | */ |
| 2000 | public function getBaseText() { |
| 2001 | $text = $this->getText(); |
| 2002 | if ( !$this->hasSubpagesEnabled() ) { |
| 2003 | return $text; |
| 2004 | } |
| 2005 | |
| 2006 | $lastSlashPos = $this->findSubpageDivider( $text, -1 ); |
| 2007 | // Don't discard the real title if there's no subpage involved |
| 2008 | if ( $lastSlashPos === false ) { |
| 2009 | return $text; |
| 2010 | } |
| 2011 | |
| 2012 | return substr( $text, 0, $lastSlashPos ); |
| 2013 | } |
| 2014 | |
| 2015 | /** |
| 2016 | * Get the base page name title, i.e. the part before the subpage name. |
| 2017 | * |
| 2018 | * @par Example: |
| 2019 | * @code |
| 2020 | * Title::newFromText('User:Foo/Bar/Baz')->getBaseTitle(); |
| 2021 | * # returns: Title{User:Foo/Bar} |
| 2022 | * @endcode |
| 2023 | * |
| 2024 | * @return Title |
| 2025 | * @since 1.20 |
| 2026 | */ |
| 2027 | public function getBaseTitle() { |
| 2028 | $title = self::makeTitleSafe( $this->mNamespace, $this->getBaseText() ); |
| 2029 | |
| 2030 | if ( !$title ) { |
| 2031 | if ( !$this->isValid() ) { |
| 2032 | // If the title wasn't valid in the first place, we can't expect |
| 2033 | // to successfully parse it. T290194 |
| 2034 | return $this; |
| 2035 | } |
| 2036 | |
| 2037 | Assert::postcondition( |
| 2038 | $title !== null, |
| 2039 | 'makeTitleSafe() should always return a Title for the text ' . |
| 2040 | 'returned by getBaseText().' |
| 2041 | ); |
| 2042 | } |
| 2043 | |
| 2044 | return $title; |
| 2045 | } |
| 2046 | |
| 2047 | /** |
| 2048 | * Get the lowest-level subpage name, i.e. the rightmost part after any slashes |
| 2049 | * |
| 2050 | * @par Example: |
| 2051 | * @code |
| 2052 | * Title::newFromText('User:Foo/Bar/Baz')->getSubpageText(); |
| 2053 | * # returns: "Baz" |
| 2054 | * @endcode |
| 2055 | * |
| 2056 | * @return string Subpage name |
| 2057 | */ |
| 2058 | public function getSubpageText() { |
| 2059 | $text = $this->getText(); |
| 2060 | if ( !$this->hasSubpagesEnabled() ) { |
| 2061 | return $text; |
| 2062 | } |
| 2063 | |
| 2064 | $lastSlashPos = $this->findSubpageDivider( $text, -1 ); |
| 2065 | if ( $lastSlashPos === false ) { |
| 2066 | // T256922 - Return the title text if no subpages |
| 2067 | return $text; |
| 2068 | } |
| 2069 | return substr( $text, $lastSlashPos + 1 ); |
| 2070 | } |
| 2071 | |
| 2072 | /** |
| 2073 | * Get the title for a subpage of the current page |
| 2074 | * |
| 2075 | * @par Example: |
| 2076 | * @code |
| 2077 | * Title::newFromText('User:Foo/Bar/Baz')->getSubpage("Asdf"); |
| 2078 | * # returns: Title{User:Foo/Bar/Baz/Asdf} |
| 2079 | * @endcode |
| 2080 | * |
| 2081 | * @param string $text The subpage name to add to the title |
| 2082 | * @return Title|null Subpage title, or null on an error |
| 2083 | * @since 1.20 |
| 2084 | */ |
| 2085 | public function getSubpage( $text ) { |
| 2086 | return self::makeTitleSafe( |
| 2087 | $this->mNamespace, |
| 2088 | $this->getText() . '/' . $text, |
| 2089 | '', |
| 2090 | $this->mInterwiki |
| 2091 | ); |
| 2092 | } |
| 2093 | |
| 2094 | /** |
| 2095 | * Get a URL-encoded form of the subpage text |
| 2096 | * |
| 2097 | * @return string URL-encoded subpage name |
| 2098 | */ |
| 2099 | public function getSubpageUrlForm() { |
| 2100 | $text = $this->getSubpageText(); |
| 2101 | $text = wfUrlencode( strtr( $text, ' ', '_' ) ); |
| 2102 | return $text; |
| 2103 | } |
| 2104 | |
| 2105 | /** |
| 2106 | * Get a URL-encoded title (not an actual URL) including interwiki |
| 2107 | * |
| 2108 | * @return string The URL-encoded form |
| 2109 | */ |
| 2110 | public function getPrefixedURL() { |
| 2111 | $s = $this->prefix( $this->mDbkeyform ); |
| 2112 | $s = wfUrlencode( strtr( $s, ' ', '_' ) ); |
| 2113 | return $s; |
| 2114 | } |
| 2115 | |
| 2116 | /** |
| 2117 | * Get a real URL referring to this title, with interwiki link and |
| 2118 | * fragment |
| 2119 | * |
| 2120 | * @see self::getLocalURL for the arguments. |
| 2121 | * @see \MediaWiki\Utils\UrlUtils::expand() |
| 2122 | * @param string|array $query |
| 2123 | * @param false $query2 deprecated since MW 1.19; ignored since MW 1.41 |
| 2124 | * @param string|int|null $proto Protocol type to use in URL |
| 2125 | * @return string The URL |
| 2126 | */ |
| 2127 | public function getFullURL( $query = '', $query2 = false, $proto = PROTO_RELATIVE ) { |
| 2128 | $services = MediaWikiServices::getInstance(); |
| 2129 | |
| 2130 | $query = is_array( $query ) ? wfArrayToCgi( $query ) : $query; |
| 2131 | |
| 2132 | # Hand off all the decisions on urls to getLocalURL |
| 2133 | $url = $this->getLocalURL( $query ); |
| 2134 | |
| 2135 | # Expand the url to make it a full url. Note that getLocalURL has the |
| 2136 | # potential to output full urls for a variety of reasons, so we use |
| 2137 | # UrlUtils::expand() instead of simply prepending $wgServer |
| 2138 | $url = (string)$services->getUrlUtils()->expand( $url, $proto ); |
| 2139 | |
| 2140 | # Finally, add the fragment. |
| 2141 | $url .= $this->getFragmentForURL(); |
| 2142 | ( new HookRunner( $services->getHookContainer() ) )->onGetFullURL( $this, $url, $query ); |
| 2143 | return $url; |
| 2144 | } |
| 2145 | |
| 2146 | /** |
| 2147 | * Get a url appropriate for making redirects based on an untrusted url arg |
| 2148 | * |
| 2149 | * This is basically the same as getFullUrl(), but in the case of external |
| 2150 | * interwikis, we send the user to a landing page, to prevent possible |
| 2151 | * phishing attacks and the like. |
| 2152 | * |
| 2153 | * @note Uses current protocol by default, since technically relative urls |
| 2154 | * aren't allowed in redirects per HTTP spec, so this is not suitable for |
| 2155 | * places where the url gets cached, as might pollute between |
| 2156 | * https and non-https users. |
| 2157 | * @see self::getLocalURL for the arguments. |
| 2158 | * @param array|string $query |
| 2159 | * @param string $proto Protocol type to use in URL |
| 2160 | * @return string A url suitable to use in an HTTP location header. |
| 2161 | */ |
| 2162 | public function getFullUrlForRedirect( $query = '', $proto = PROTO_CURRENT ) { |
| 2163 | $target = $this; |
| 2164 | if ( $this->isExternal() ) { |
| 2165 | $target = SpecialPage::getTitleFor( |
| 2166 | 'GoToInterwiki', |
| 2167 | $this->getPrefixedDBkey() |
| 2168 | ); |
| 2169 | } |
| 2170 | return $target->getFullURL( $query, false, $proto ); |
| 2171 | } |
| 2172 | |
| 2173 | /** |
| 2174 | * Get a URL with no fragment or server name (relative URL) from a Title object. |
| 2175 | * If this page is generated with action=render, however, |
| 2176 | * $wgServer is prepended to make an absolute URL. |
| 2177 | * |
| 2178 | * @see self::getFullURL to always get an absolute URL. |
| 2179 | * @see self::getLinkURL to always get a URL that's the simplest URL that will be |
| 2180 | * valid to link, locally, to the current Title. |
| 2181 | * @see self::newFromText to produce a Title object. |
| 2182 | * |
| 2183 | * @param string|array $query An optional query string, |
| 2184 | * not used for interwiki links. Can be specified as an associative array as well, |
| 2185 | * e.g., [ 'action' => 'edit' ] (keys and values will be URL-escaped). |
| 2186 | * Some query patterns will trigger various shorturl path replacements. |
| 2187 | * |
| 2188 | * @return string |
| 2189 | */ |
| 2190 | public function getLocalURL( $query = '' ) { |
| 2191 | global $wgArticlePath, $wgScript, $wgMainPageIsDomainRoot; |
| 2192 | |
| 2193 | $query = is_array( $query ) ? wfArrayToCgi( $query ) : $query; |
| 2194 | |
| 2195 | $services = MediaWikiServices::getInstance(); |
| 2196 | $hookRunner = new HookRunner( $services->getHookContainer() ); |
| 2197 | $interwiki = self::getInterwikiLookup()->fetch( $this->mInterwiki ); |
| 2198 | if ( $interwiki ) { |
| 2199 | $namespace = $this->getNsText(); |
| 2200 | if ( $namespace != '' ) { |
| 2201 | # Can this actually happen? Interwikis shouldn't be parsed. |
| 2202 | # Yes! It can in interwiki transclusion. But... it probably shouldn't. |
| 2203 | $namespace .= ':'; |
| 2204 | } |
| 2205 | $url = $interwiki->getURL( $namespace . $this->mDbkeyform ); |
| 2206 | $url = wfAppendQuery( $url, $query ); |
| 2207 | } else { |
| 2208 | $dbkey = wfUrlencode( $this->getPrefixedDBkey() ); |
| 2209 | if ( $query == '' ) { |
| 2210 | if ( $wgMainPageIsDomainRoot && $this->isMainPage() ) { |
| 2211 | $url = '/'; |
| 2212 | } else { |
| 2213 | $url = str_replace( '$1', $dbkey, $wgArticlePath ); |
| 2214 | } |
| 2215 | $hookRunner->onGetLocalURL__Article( $this, $url ); |
| 2216 | } else { |
| 2217 | global $wgVariantArticlePath, $wgActionPaths; |
| 2218 | $url = false; |
| 2219 | $matches = []; |
| 2220 | |
| 2221 | $articlePaths = PathRouter::getActionPaths( $wgActionPaths, $wgArticlePath ); |
| 2222 | |
| 2223 | if ( $articlePaths |
| 2224 | && preg_match( '/^(.*&|)action=([^&]*)(&(.*)|)$/', $query, $matches ) |
| 2225 | ) { |
| 2226 | $action = urldecode( $matches[2] ); |
| 2227 | if ( isset( $articlePaths[$action] ) ) { |
| 2228 | $query = $matches[1]; |
| 2229 | if ( isset( $matches[4] ) ) { |
| 2230 | $query .= $matches[4]; |
| 2231 | } |
| 2232 | $url = str_replace( '$1', $dbkey, $articlePaths[$action] ); |
| 2233 | if ( $query != '' ) { |
| 2234 | $url = wfAppendQuery( $url, $query ); |
| 2235 | } |
| 2236 | } |
| 2237 | } |
| 2238 | |
| 2239 | if ( $url === false |
| 2240 | && $wgVariantArticlePath |
| 2241 | && preg_match( '/^variant=([^&]*)$/', $query, $matches ) |
| 2242 | && $this->getPageLanguage()->equals( $services->getContentLanguage() ) |
| 2243 | && $this->getPageLanguageConverter()->hasVariants() |
| 2244 | ) { |
| 2245 | $variant = urldecode( $matches[1] ); |
| 2246 | if ( $this->getPageLanguageConverter()->hasVariant( $variant ) ) { |
| 2247 | // Only do the variant replacement if the given variant is a valid |
| 2248 | // variant for the page's language. |
| 2249 | $url = str_replace( '$2', urlencode( $variant ), $wgVariantArticlePath ); |
| 2250 | $url = str_replace( '$1', $dbkey, $url ); |
| 2251 | } |
| 2252 | } |
| 2253 | |
| 2254 | if ( $url === false ) { |
| 2255 | if ( $query == '-' ) { |
| 2256 | $query = ''; |
| 2257 | } |
| 2258 | $url = "{$wgScript}?title={$dbkey}&{$query}"; |
| 2259 | } |
| 2260 | } |
| 2261 | $hookRunner->onGetLocalURL__Internal( $this, $url, $query ); |
| 2262 | } |
| 2263 | |
| 2264 | $hookRunner->onGetLocalURL( $this, $url, $query ); |
| 2265 | return $url; |
| 2266 | } |
| 2267 | |
| 2268 | /** |
| 2269 | * Get a URL that's the simplest URL that will be valid to link, locally, |
| 2270 | * to the current Title. It includes the fragment, but does not include |
| 2271 | * the server unless action=render is used (or the link is external). If |
| 2272 | * there's a fragment but the prefixed text is empty, we just return a link |
| 2273 | * to the fragment. |
| 2274 | * |
| 2275 | * The result obviously should not be URL-escaped, but does need to be |
| 2276 | * HTML-escaped if it's being output in HTML. |
| 2277 | * |
| 2278 | * @param string|array $query |
| 2279 | * @param string|string[]|false $query2 deprecated since MW 1.19; ignored since MW 1.41 |
| 2280 | * @param string|int|false $proto A PROTO_* constant on how the URL should be expanded, |
| 2281 | * or false (default) for no expansion |
| 2282 | * @see self::getLocalURL for the arguments. |
| 2283 | * @return string The URL |
| 2284 | */ |
| 2285 | public function getLinkURL( $query = '', $query2 = false, $proto = false ) { |
| 2286 | if ( $this->isExternal() || $proto !== false ) { |
| 2287 | $ret = $this->getFullURL( $query, false, $proto ); |
| 2288 | } elseif ( $this->getPrefixedText() === '' && $this->hasFragment() ) { |
| 2289 | $ret = $this->getFragmentForURL(); |
| 2290 | } else { |
| 2291 | $ret = $this->getLocalURL( $query ) . $this->getFragmentForURL(); |
| 2292 | } |
| 2293 | return $ret; |
| 2294 | } |
| 2295 | |
| 2296 | /** |
| 2297 | * Get the URL form for an internal link. |
| 2298 | * - Used in various CDN-related code, in case we have a different |
| 2299 | * internal hostname for the server from the exposed one. |
| 2300 | * |
| 2301 | * This uses $wgInternalServer to qualify the path, or $wgServer |
| 2302 | * if $wgInternalServer is not set. If the server variable used is |
| 2303 | * protocol-relative, the URL will be expanded to http:// |
| 2304 | * |
| 2305 | * @see self::getLocalURL for the arguments. |
| 2306 | * @param string|array $query |
| 2307 | * @return string The URL |
| 2308 | */ |
| 2309 | public function getInternalURL( $query = '' ) { |
| 2310 | global $wgInternalServer, $wgServer; |
| 2311 | $services = MediaWikiServices::getInstance(); |
| 2312 | |
| 2313 | $query = is_array( $query ) ? wfArrayToCgi( $query ) : $query; |
| 2314 | |
| 2315 | $server = $wgInternalServer !== false ? $wgInternalServer : $wgServer; |
| 2316 | $url = (string)$services->getUrlUtils()->expand( $server . $this->getLocalURL( $query ), PROTO_HTTP ); |
| 2317 | ( new HookRunner( $services->getHookContainer() ) ) |
| 2318 | ->onGetInternalURL( $this, $url, $query ); |
| 2319 | return $url; |
| 2320 | } |
| 2321 | |
| 2322 | /** |
| 2323 | * Get the URL for a canonical link, for use in things like IRC and |
| 2324 | * e-mail notifications. Uses $wgCanonicalServer and the |
| 2325 | * GetCanonicalURL hook. |
| 2326 | * |
| 2327 | * NOTE: Unlike getInternalURL(), the canonical URL includes the fragment |
| 2328 | * |
| 2329 | * @see self::getLocalURL for the arguments. |
| 2330 | * @param string|array $query |
| 2331 | * @return string The URL |
| 2332 | * @since 1.18 |
| 2333 | */ |
| 2334 | public function getCanonicalURL( $query = '' ) { |
| 2335 | $services = MediaWikiServices::getInstance(); |
| 2336 | |
| 2337 | $query = is_array( $query ) ? wfArrayToCgi( $query ) : $query; |
| 2338 | |
| 2339 | $url = (string)$services->getUrlUtils()->expand( |
| 2340 | $this->getLocalURL( $query ) . $this->getFragmentForURL(), |
| 2341 | PROTO_CANONICAL |
| 2342 | ); |
| 2343 | ( new HookRunner( $services->getHookContainer() ) ) |
| 2344 | ->onGetCanonicalURL( $this, $url, $query ); |
| 2345 | return $url; |
| 2346 | } |
| 2347 | |
| 2348 | /** |
| 2349 | * Get the edit URL for this Title |
| 2350 | * |
| 2351 | * @return string The URL, or a null string if this is an interwiki link |
| 2352 | */ |
| 2353 | public function getEditURL() { |
| 2354 | if ( $this->isExternal() ) { |
| 2355 | return ''; |
| 2356 | } |
| 2357 | $s = $this->getLocalURL( 'action=edit' ); |
| 2358 | |
| 2359 | return $s; |
| 2360 | } |
| 2361 | |
| 2362 | /** |
| 2363 | * Is this title subject to title protection? |
| 2364 | * Title protection is the one applied against creation of such title. |
| 2365 | * |
| 2366 | * @deprecated since 1.37, use RestrictionStore::getCreateProtection() instead; |
| 2367 | * hard-deprecated since 1.43 |
| 2368 | * |
| 2369 | * @return array|bool An associative array representing any existent title |
| 2370 | * protection, or false if there's none. |
| 2371 | */ |
| 2372 | public function getTitleProtection() { |
| 2373 | wfDeprecated( __METHOD__, '1.37' ); |
| 2374 | return MediaWikiServices::getInstance()->getRestrictionStore()->getCreateProtection( $this ) |
| 2375 | ?: false; |
| 2376 | } |
| 2377 | |
| 2378 | /** |
| 2379 | * Remove any title protection due to page existing |
| 2380 | * |
| 2381 | * @deprecated since 1.37, do not use (this is only for WikiPage::onArticleCreate) |
| 2382 | */ |
| 2383 | public function deleteTitleProtection() { |
| 2384 | MediaWikiServices::getInstance()->getRestrictionStore()->deleteCreateProtection( $this ); |
| 2385 | } |
| 2386 | |
| 2387 | /** |
| 2388 | * Load restrictions from the page_restrictions table |
| 2389 | * |
| 2390 | * @deprecated since 1.37, no public replacement; hard-deprecated since 1.43 |
| 2391 | * |
| 2392 | * @param int $flags A bit field. If IDBAccessObject::READ_LATEST is set, skip replicas and read |
| 2393 | * from the primary DB. |
| 2394 | */ |
| 2395 | public function loadRestrictions( $flags = 0 ) { |
| 2396 | wfDeprecated( __METHOD__, '1.37' ); |
| 2397 | MediaWikiServices::getInstance()->getRestrictionStore()->loadRestrictions( $this, $flags ); |
| 2398 | } |
| 2399 | |
| 2400 | /** |
| 2401 | * Flush the protection cache in this object and force reload from the database. |
| 2402 | * This is used when updating protection from WikiPage::doUpdateRestrictions(). |
| 2403 | * |
| 2404 | * @deprecated since 1.37, now internal; hard-deprecated since 1.43 |
| 2405 | */ |
| 2406 | public function flushRestrictions() { |
| 2407 | wfDeprecated( __METHOD__, '1.37' ); |
| 2408 | MediaWikiServices::getInstance()->getRestrictionStore()->flushRestrictions( $this ); |
| 2409 | } |
| 2410 | |
| 2411 | /** |
| 2412 | * Purge expired restrictions from the page_restrictions table |
| 2413 | * |
| 2414 | * This will purge no more than $wgUpdateRowsPerQuery page_restrictions rows |
| 2415 | */ |
| 2416 | public static function purgeExpiredRestrictions() { |
| 2417 | if ( MediaWikiServices::getInstance()->getReadOnlyMode()->isReadOnly() ) { |
| 2418 | return; |
| 2419 | } |
| 2420 | |
| 2421 | DeferredUpdates::addUpdate( new AutoCommitUpdate( |
| 2422 | MediaWikiServices::getInstance()->getConnectionProvider()->getPrimaryDatabase(), |
| 2423 | __METHOD__, |
| 2424 | static function ( IDatabase $dbw, $fname ) { |
| 2425 | $config = MediaWikiServices::getInstance()->getMainConfig(); |
| 2426 | $ids = $dbw->newSelectQueryBuilder() |
| 2427 | ->select( 'pr_id' ) |
| 2428 | ->from( 'page_restrictions' ) |
| 2429 | ->where( $dbw->expr( 'pr_expiry', '<', $dbw->timestamp() ) ) |
| 2430 | ->limit( $config->get( MainConfigNames::UpdateRowsPerQuery ) ) // T135470 |
| 2431 | ->caller( $fname )->fetchFieldValues(); |
| 2432 | if ( $ids ) { |
| 2433 | $dbw->newDeleteQueryBuilder() |
| 2434 | ->deleteFrom( 'page_restrictions' ) |
| 2435 | ->where( [ 'pr_id' => $ids ] ) |
| 2436 | ->caller( $fname )->execute(); |
| 2437 | } |
| 2438 | |
| 2439 | $dbw->newDeleteQueryBuilder() |
| 2440 | ->deleteFrom( 'protected_titles' ) |
| 2441 | ->where( $dbw->expr( 'pt_expiry', '<', $dbw->timestamp() ) ) |
| 2442 | ->caller( $fname )->execute(); |
| 2443 | } |
| 2444 | ) ); |
| 2445 | } |
| 2446 | |
| 2447 | /** |
| 2448 | * Does this have subpages? (Warning, usually requires an extra DB query.) |
| 2449 | * |
| 2450 | * @return bool |
| 2451 | */ |
| 2452 | public function hasSubpages() { |
| 2453 | if ( |
| 2454 | !MediaWikiServices::getInstance()->getNamespaceInfo()-> |
| 2455 | hasSubpages( $this->mNamespace ) |
| 2456 | ) { |
| 2457 | # Duh |
| 2458 | return false; |
| 2459 | } |
| 2460 | |
| 2461 | # We dynamically add a member variable for the purpose of this method |
| 2462 | # alone to cache the result. There's no point in having it hanging |
| 2463 | # around uninitialized in every Title object; therefore we only add it |
| 2464 | # if needed and don't declare it statically. |
| 2465 | if ( $this->mHasSubpages === null ) { |
| 2466 | $subpages = $this->getSubpages( 1 ); |
| 2467 | $this->mHasSubpages = $subpages instanceof TitleArrayFromResult && $subpages->count(); |
| 2468 | } |
| 2469 | |
| 2470 | return $this->mHasSubpages; |
| 2471 | } |
| 2472 | |
| 2473 | /** |
| 2474 | * Get all subpages of this page. |
| 2475 | * |
| 2476 | * @param int $limit Maximum number of subpages to fetch; -1 for no limit |
| 2477 | * @return TitleArrayFromResult|array TitleArrayFromResult, or empty array if this page's namespace |
| 2478 | * doesn't allow subpages |
| 2479 | */ |
| 2480 | public function getSubpages( $limit = -1 ) { |
| 2481 | if ( |
| 2482 | !MediaWikiServices::getInstance()->getNamespaceInfo()-> |
| 2483 | hasSubpages( $this->mNamespace ) |
| 2484 | ) { |
| 2485 | return []; |
| 2486 | } |
| 2487 | |
| 2488 | $services = MediaWikiServices::getInstance(); |
| 2489 | $pageStore = $services->getPageStore(); |
| 2490 | $titleFactory = $services->getTitleFactory(); |
| 2491 | $query = $pageStore->newSelectQueryBuilder() |
| 2492 | ->fields( $pageStore->getSelectFields() ) |
| 2493 | ->whereTitlePrefix( $this->getNamespace(), $this->getDBkey() . '/' ) |
| 2494 | ->caller( __METHOD__ ); |
| 2495 | if ( $limit > -1 ) { |
| 2496 | $query->limit( $limit ); |
| 2497 | } |
| 2498 | |
| 2499 | return $titleFactory->newTitleArrayFromResult( $query->fetchResultSet() ); |
| 2500 | } |
| 2501 | |
| 2502 | /** |
| 2503 | * Is there a version of this page in the deletion archive? |
| 2504 | * |
| 2505 | * @deprecated since 1.36. Use self::getDeletedEditsCount() |
| 2506 | * @return int The number of archived revisions |
| 2507 | */ |
| 2508 | public function isDeleted() { |
| 2509 | return $this->getDeletedEditsCount(); |
| 2510 | } |
| 2511 | |
| 2512 | /** |
| 2513 | * Is there a version of this page in the deletion archive? |
| 2514 | * |
| 2515 | * @since 1.36 |
| 2516 | * @return int The number of archived revisions |
| 2517 | */ |
| 2518 | public function getDeletedEditsCount() { |
| 2519 | if ( $this->mNamespace < 0 ) { |
| 2520 | return 0; |
| 2521 | } |
| 2522 | |
| 2523 | $dbr = $this->getDbProvider()->getReplicaDatabase(); |
| 2524 | $n = (int)$dbr->newSelectQueryBuilder() |
| 2525 | ->select( 'COUNT(*)' ) |
| 2526 | ->from( 'archive' ) |
| 2527 | ->where( [ 'ar_namespace' => $this->mNamespace, 'ar_title' => $this->mDbkeyform ] ) |
| 2528 | ->caller( __METHOD__ )->fetchField(); |
| 2529 | if ( $this->mNamespace === NS_FILE ) { |
| 2530 | $n += $dbr->newSelectQueryBuilder() |
| 2531 | ->select( 'COUNT(*)' ) |
| 2532 | ->from( 'filearchive' ) |
| 2533 | ->where( [ 'fa_name' => $this->mDbkeyform ] ) |
| 2534 | ->caller( __METHOD__ )->fetchField(); |
| 2535 | } |
| 2536 | return $n; |
| 2537 | } |
| 2538 | |
| 2539 | /** |
| 2540 | * Is there a version of this page in the deletion archive? |
| 2541 | * |
| 2542 | * @deprecated since 1.36, Use self::hasDeletedEdits() |
| 2543 | * @return bool |
| 2544 | */ |
| 2545 | public function isDeletedQuick() { |
| 2546 | return $this->hasDeletedEdits(); |
| 2547 | } |
| 2548 | |
| 2549 | /** |
| 2550 | * Is there a version of this page in the deletion archive? |
| 2551 | * |
| 2552 | * @since 1.36 |
| 2553 | * @return bool |
| 2554 | */ |
| 2555 | public function hasDeletedEdits() { |
| 2556 | if ( $this->mNamespace < 0 ) { |
| 2557 | return false; |
| 2558 | } |
| 2559 | $dbr = $this->getDbProvider()->getReplicaDatabase(); |
| 2560 | $deleted = (bool)$dbr->newSelectQueryBuilder() |
| 2561 | ->select( '1' ) |
| 2562 | ->from( 'archive' ) |
| 2563 | ->where( [ 'ar_namespace' => $this->mNamespace, 'ar_title' => $this->mDbkeyform ] ) |
| 2564 | ->caller( __METHOD__ )->fetchField(); |
| 2565 | if ( !$deleted && $this->mNamespace === NS_FILE ) { |
| 2566 | $deleted = (bool)$dbr->newSelectQueryBuilder() |
| 2567 | ->select( '1' ) |
| 2568 | ->from( 'filearchive' ) |
| 2569 | ->where( [ 'fa_name' => $this->mDbkeyform ] ) |
| 2570 | ->caller( __METHOD__ )->fetchField(); |
| 2571 | } |
| 2572 | return $deleted; |
| 2573 | } |
| 2574 | |
| 2575 | /** |
| 2576 | * Get the article ID for this Title from the link cache, |
| 2577 | * adding it if necessary |
| 2578 | * |
| 2579 | * @param int $flags A bitfield of IDBAccessObject::READ_* constants |
| 2580 | * @return int The ID |
| 2581 | */ |
| 2582 | public function getArticleID( $flags = 0 ) { |
| 2583 | if ( $this->mArticleID === -1 && !$this->canExist() ) { |
| 2584 | $this->mArticleID = 0; |
| 2585 | |
| 2586 | return $this->mArticleID; |
| 2587 | } |
| 2588 | |
| 2589 | if ( $this->mArticleID === -1 || $this->shouldReadLatest( $flags ) ) { |
| 2590 | $this->mArticleID = (int)$this->getFieldFromPageStore( 'page_id', $flags ); |
| 2591 | } |
| 2592 | |
| 2593 | return $this->mArticleID; |
| 2594 | } |
| 2595 | |
| 2596 | /** |
| 2597 | * Is this an article that is a redirect page? |
| 2598 | * Uses link cache, adding it if necessary. |
| 2599 | * |
| 2600 | * This is intended to provide fast access to page_is_redirect for linking. |
| 2601 | * In rare cases, there might not be a valid target in the redirect table |
| 2602 | * even though this function returns true. |
| 2603 | * |
| 2604 | * To find a redirect target, just call WikiPage::getRedirectTarget() and |
| 2605 | * check if it returns null, there's no need to call this first. |
| 2606 | * |
| 2607 | * @param int $flags A bitfield of IDBAccessObject::READ_* constants |
| 2608 | * @return bool |
| 2609 | */ |
| 2610 | public function isRedirect( $flags = 0 ) { |
| 2611 | if ( $this->shouldReadLatest( $flags ) || $this->mRedirect === null ) { |
| 2612 | $this->mRedirect = (bool)$this->getFieldFromPageStore( 'page_is_redirect', $flags ); |
| 2613 | } |
| 2614 | |
| 2615 | return $this->mRedirect; |
| 2616 | } |
| 2617 | |
| 2618 | /** |
| 2619 | * What is the length of this page? |
| 2620 | * Uses link cache, adding it if necessary |
| 2621 | * |
| 2622 | * @param int $flags A bitfield of IDBAccessObject::READ_* constants |
| 2623 | * @return int |
| 2624 | */ |
| 2625 | public function getLength( $flags = 0 ) { |
| 2626 | if ( $this->shouldReadLatest( $flags ) || $this->mLength < 0 ) { |
| 2627 | $this->mLength = (int)$this->getFieldFromPageStore( 'page_len', $flags ); |
| 2628 | } |
| 2629 | |
| 2630 | if ( $this->mLength < 0 ) { |
| 2631 | $this->mLength = 0; |
| 2632 | } |
| 2633 | |
| 2634 | return $this->mLength; |
| 2635 | } |
| 2636 | |
| 2637 | /** |
| 2638 | * What is the page_latest field for this page? |
| 2639 | * |
| 2640 | * @param int $flags A bitfield of IDBAccessObject::READ_* constants |
| 2641 | * @return int Int or 0 if the page doesn't exist |
| 2642 | */ |
| 2643 | public function getLatestRevID( $flags = 0 ) { |
| 2644 | if ( $this->shouldReadLatest( $flags ) || $this->mLatestID === false ) { |
| 2645 | $this->mLatestID = (int)$this->getFieldFromPageStore( 'page_latest', $flags ); |
| 2646 | } |
| 2647 | |
| 2648 | if ( !$this->mLatestID ) { |
| 2649 | $this->mLatestID = 0; |
| 2650 | } |
| 2651 | |
| 2652 | return $this->mLatestID; |
| 2653 | } |
| 2654 | |
| 2655 | /** |
| 2656 | * Inject a page ID, reset DB-loaded fields, and clear the link cache for this title |
| 2657 | * |
| 2658 | * This can be called on page insertion to allow loading of the new page_id without |
| 2659 | * having to create a new Title instance. Likewise with deletion. |
| 2660 | * |
| 2661 | * This is also used during page moves, to reflect the change in the relationship |
| 2662 | * between article ID and title text. |
| 2663 | * |
| 2664 | * @note This overrides Title::setContentModel() |
| 2665 | * |
| 2666 | * @param int|bool $id Page ID, 0 for non-existent, or false for "unknown" (lazy-load) |
| 2667 | */ |
| 2668 | public function resetArticleID( $id ) { |
| 2669 | if ( $id === false ) { |
| 2670 | $this->mArticleID = -1; |
| 2671 | } else { |
| 2672 | $this->mArticleID = (int)$id; |
| 2673 | } |
| 2674 | $this->mRedirect = null; |
| 2675 | $this->mLength = -1; |
| 2676 | $this->mLatestID = false; |
| 2677 | $this->mContentModel = false; |
| 2678 | $this->mForcedContentModel = false; |
| 2679 | $this->mEstimateRevisions = null; |
| 2680 | $this->mPageLanguage = null; |
| 2681 | $this->mDbPageLanguage = false; |
| 2682 | $this->mIsBigDeletion = null; |
| 2683 | |
| 2684 | $this->uncache(); |
| 2685 | MediaWikiServices::getInstance()->getLinkCache()->clearLink( $this ); |
| 2686 | MediaWikiServices::getInstance()->getRestrictionStore()->flushRestrictions( $this ); |
| 2687 | } |
| 2688 | |
| 2689 | public static function clearCaches() { |
| 2690 | if ( MediaWikiServices::hasInstance() ) { |
| 2691 | $linkCache = MediaWikiServices::getInstance()->getLinkCache(); |
| 2692 | $linkCache->clear(); |
| 2693 | } |
| 2694 | |
| 2695 | $titleCache = self::getTitleCache(); |
| 2696 | $titleCache->clear(); |
| 2697 | } |
| 2698 | |
| 2699 | /** |
| 2700 | * Capitalize a text string for a title if it belongs to a namespace that capitalizes |
| 2701 | * |
| 2702 | * @param string $text Containing title to capitalize |
| 2703 | * @param int $ns Namespace index, defaults to NS_MAIN |
| 2704 | * @return string Containing capitalized title |
| 2705 | */ |
| 2706 | public static function capitalize( $text, $ns = NS_MAIN ) { |
| 2707 | $services = MediaWikiServices::getInstance(); |
| 2708 | if ( $services->getNamespaceInfo()->isCapitalized( $ns ) ) { |
| 2709 | return $services->getContentLanguage()->ucfirst( $text ); |
| 2710 | } else { |
| 2711 | return $text; |
| 2712 | } |
| 2713 | } |
| 2714 | |
| 2715 | /** |
| 2716 | * Secure and split - main initialisation function for this object |
| 2717 | * |
| 2718 | * Assumes that $text is urldecoded |
| 2719 | * and uses underscores, but not otherwise munged. This function |
| 2720 | * removes illegal characters, splits off the interwiki and |
| 2721 | * namespace prefixes, sets the other forms, and canonicalizes |
| 2722 | * everything. |
| 2723 | * |
| 2724 | * If this method returns normally, the Title is valid. |
| 2725 | * |
| 2726 | * @param string $text |
| 2727 | * @param int|null $defaultNamespace |
| 2728 | * |
| 2729 | * @throws MalformedTitleException On malformed titles |
| 2730 | */ |
| 2731 | private function secureAndSplit( $text, $defaultNamespace = null ) { |
| 2732 | $defaultNamespace ??= self::DEFAULT_NAMESPACE; |
| 2733 | |
| 2734 | // @note: splitTitleString() is a temporary hack to allow TitleParser to share |
| 2735 | // the parsing code with Title, while avoiding massive refactoring. |
| 2736 | // @todo: get rid of secureAndSplit, refactor parsing code. |
| 2737 | $titleParser = MediaWikiServices::getInstance()->getTitleParser(); |
| 2738 | // MalformedTitleException can be thrown here |
| 2739 | $parts = $titleParser->splitTitleString( $text, $defaultNamespace ); |
| 2740 | |
| 2741 | # Fill fields |
| 2742 | $this->setFragment( '#' . $parts['fragment'] ); |
| 2743 | $this->mInterwiki = $parts['interwiki']; |
| 2744 | $this->mLocalInterwiki = $parts['local_interwiki']; |
| 2745 | $this->mNamespace = $parts['namespace']; |
| 2746 | |
| 2747 | $this->mDbkeyform = $parts['dbkey']; |
| 2748 | $this->mUrlform = wfUrlencode( $this->mDbkeyform ); |
| 2749 | $this->mTextform = strtr( $this->mDbkeyform, '_', ' ' ); |
| 2750 | |
| 2751 | // splitTitleString() guarantees that this title is valid. |
| 2752 | $this->mIsValid = true; |
| 2753 | |
| 2754 | # We already know that some pages won't be in the database! |
| 2755 | if ( $this->isExternal() || $this->isSpecialPage() || $this->mTextform === '' ) { |
| 2756 | $this->mArticleID = 0; |
| 2757 | } |
| 2758 | } |
| 2759 | |
| 2760 | /** |
| 2761 | * Get an array of Title objects linking to this Title |
| 2762 | * Also stores the IDs in the link cache. |
| 2763 | * |
| 2764 | * WARNING: do not use this function on arbitrary user-supplied titles! |
| 2765 | * On heavily-used templates it will max out the memory. |
| 2766 | * |
| 2767 | * @param array $options May be FOR UPDATE |
| 2768 | * @param string $table Table name |
| 2769 | * @param string $prefix Fields prefix |
| 2770 | * @return Title[] |
| 2771 | */ |
| 2772 | public function getLinksTo( $options = [], $table = 'pagelinks', $prefix = 'pl' ) { |
| 2773 | if ( count( $options ) > 0 ) { |
| 2774 | $db = $this->getDbProvider()->getPrimaryDatabase(); |
| 2775 | } else { |
| 2776 | $db = $this->getDbProvider()->getReplicaDatabase(); |
| 2777 | } |
| 2778 | |
| 2779 | $linksMigration = MediaWikiServices::getInstance()->getLinksMigration(); |
| 2780 | if ( isset( $linksMigration::$mapping[$table] ) ) { |
| 2781 | $titleConds = $linksMigration->getLinksConditions( $table, $this ); |
| 2782 | } else { |
| 2783 | $titleConds = [ |
| 2784 | "{$prefix}_namespace" => $this->mNamespace, |
| 2785 | "{$prefix}_title" => $this->mDbkeyform |
| 2786 | ]; |
| 2787 | } |
| 2788 | |
| 2789 | $res = $db->newSelectQueryBuilder() |
| 2790 | ->select( LinkCache::getSelectFields() ) |
| 2791 | ->from( $table ) |
| 2792 | ->join( 'page', null, "{$prefix}_from=page_id" ) |
| 2793 | ->where( $titleConds ) |
| 2794 | ->options( $options ) |
| 2795 | ->caller( __METHOD__ ) |
| 2796 | ->fetchResultSet(); |
| 2797 | |
| 2798 | $retVal = []; |
| 2799 | if ( $res->numRows() ) { |
| 2800 | $linkCache = MediaWikiServices::getInstance()->getLinkCache(); |
| 2801 | foreach ( $res as $row ) { |
| 2802 | $titleObj = self::makeTitle( $row->page_namespace, $row->page_title ); |
| 2803 | if ( $titleObj ) { |
| 2804 | $linkCache->addGoodLinkObjFromRow( $titleObj, $row ); |
| 2805 | $retVal[] = $titleObj; |
| 2806 | } |
| 2807 | } |
| 2808 | } |
| 2809 | return $retVal; |
| 2810 | } |
| 2811 | |
| 2812 | /** |
| 2813 | * Get an array of Title objects using this Title as a template |
| 2814 | * Also stores the IDs in the link cache. |
| 2815 | * |
| 2816 | * WARNING: do not use this function on arbitrary user-supplied titles! |
| 2817 | * On heavily-used templates it will max out the memory. |
| 2818 | * |
| 2819 | * @param array $options Query option to Database::select() |
| 2820 | * @return Title[] |
| 2821 | */ |
| 2822 | public function getTemplateLinksTo( $options = [] ) { |
| 2823 | return $this->getLinksTo( $options, 'templatelinks', 'tl' ); |
| 2824 | } |
| 2825 | |
| 2826 | /** |
| 2827 | * Get an array of Title objects linked from this Title |
| 2828 | * Also stores the IDs in the link cache. |
| 2829 | * |
| 2830 | * WARNING: do not use this function on arbitrary user-supplied titles! |
| 2831 | * On heavily-used templates it will max out the memory. |
| 2832 | * |
| 2833 | * @param array $options Query option to Database::select() |
| 2834 | * @param string $table Table name |
| 2835 | * @param string $prefix Fields prefix |
| 2836 | * @return Title[] List of Titles linking here |
| 2837 | */ |
| 2838 | public function getLinksFrom( $options = [], $table = 'pagelinks', $prefix = 'pl' ) { |
| 2839 | $id = $this->getArticleID(); |
| 2840 | |
| 2841 | # If the page doesn't exist; there can't be any link from this page |
| 2842 | if ( !$id ) { |
| 2843 | return []; |
| 2844 | } |
| 2845 | |
| 2846 | $db = $this->getDbProvider()->getReplicaDatabase(); |
| 2847 | $linksMigration = MediaWikiServices::getInstance()->getLinksMigration(); |
| 2848 | |
| 2849 | $queryBuilder = $db->newSelectQueryBuilder(); |
| 2850 | if ( isset( $linksMigration::$mapping[$table] ) ) { |
| 2851 | [ $blNamespace, $blTitle ] = $linksMigration->getTitleFields( $table ); |
| 2852 | $linktargetQueryInfo = $linksMigration->getQueryInfo( $table ); |
| 2853 | $queryBuilder->queryInfo( $linktargetQueryInfo ); |
| 2854 | } else { |
| 2855 | $blNamespace = "{$prefix}_namespace"; |
| 2856 | $blTitle = "{$prefix}_title"; |
| 2857 | $queryBuilder->select( [ $blNamespace, $blTitle ] ) |
| 2858 | ->from( $table ); |
| 2859 | } |
| 2860 | |
| 2861 | $pageQuery = WikiPage::getQueryInfo(); |
| 2862 | $res = $queryBuilder |
| 2863 | ->where( [ "{$prefix}_from" => $id ] ) |
| 2864 | ->leftJoin( 'page', null, [ "page_namespace=$blNamespace", "page_title=$blTitle" ] ) |
| 2865 | ->fields( $pageQuery['fields'] ) |
| 2866 | ->options( $options ) |
| 2867 | ->caller( __METHOD__ ) |
| 2868 | ->fetchResultSet(); |
| 2869 | |
| 2870 | $retVal = []; |
| 2871 | $linkCache = MediaWikiServices::getInstance()->getLinkCache(); |
| 2872 | foreach ( $res as $row ) { |
| 2873 | if ( $row->page_id ) { |
| 2874 | $titleObj = self::newFromRow( $row ); |
| 2875 | } else { |
| 2876 | $titleObj = self::makeTitle( $row->$blNamespace, $row->$blTitle ); |
| 2877 | $linkCache->addBadLinkObj( $titleObj ); |
| 2878 | } |
| 2879 | $retVal[] = $titleObj; |
| 2880 | } |
| 2881 | |
| 2882 | return $retVal; |
| 2883 | } |
| 2884 | |
| 2885 | /** |
| 2886 | * Get an array of Title objects used on this Title as a template |
| 2887 | * Also stores the IDs in the link cache. |
| 2888 | * |
| 2889 | * WARNING: do not use this function on arbitrary user-supplied titles! |
| 2890 | * On heavily-used templates it will max out the memory. |
| 2891 | * |
| 2892 | * @param array $options May be FOR UPDATE |
| 2893 | * @return Title[] |
| 2894 | */ |
| 2895 | public function getTemplateLinksFrom( $options = [] ) { |
| 2896 | return $this->getLinksFrom( $options, 'templatelinks', 'tl' ); |
| 2897 | } |
| 2898 | |
| 2899 | /** |
| 2900 | * Locks the page row and check if this page is single revision redirect |
| 2901 | * |
| 2902 | * This updates the cached fields of this instance via Title::loadFromRow() |
| 2903 | * |
| 2904 | * @return bool |
| 2905 | */ |
| 2906 | public function isSingleRevRedirect() { |
| 2907 | $dbw = $this->getDbProvider()->getPrimaryDatabase(); |
| 2908 | $dbw->startAtomic( __METHOD__ ); |
| 2909 | $pageStore = MediaWikiServices::getInstance()->getPageStore(); |
| 2910 | |
| 2911 | $row = $dbw->newSelectQueryBuilder() |
| 2912 | ->select( $pageStore->getSelectFields() ) |
| 2913 | ->from( 'page' ) |
| 2914 | ->where( $this->pageCond() ) |
| 2915 | ->caller( __METHOD__ )->fetchRow(); |
| 2916 | // Update the cached fields |
| 2917 | $this->loadFromRow( $row ); |
| 2918 | |
| 2919 | if ( $this->mRedirect && $this->mLatestID ) { |
| 2920 | $isSingleRevRedirect = !$dbw->newSelectQueryBuilder() |
| 2921 | ->select( '1' ) |
| 2922 | ->forUpdate() |
| 2923 | ->from( 'revision' ) |
| 2924 | ->where( [ 'rev_page' => $this->mArticleID, $dbw->expr( 'rev_id', '!=', (int)$this->mLatestID ) ] ) |
| 2925 | ->caller( __METHOD__ )->fetchField(); |
| 2926 | } else { |
| 2927 | $isSingleRevRedirect = false; |
| 2928 | } |
| 2929 | |
| 2930 | $dbw->endAtomic( __METHOD__ ); |
| 2931 | |
| 2932 | return $isSingleRevRedirect; |
| 2933 | } |
| 2934 | |
| 2935 | /** |
| 2936 | * Get categories to which this Title belongs and return an array of |
| 2937 | * categories' names. |
| 2938 | * |
| 2939 | * @return string[] Array of parents in the form: |
| 2940 | * $parent => $currentarticle |
| 2941 | */ |
| 2942 | public function getParentCategories() { |
| 2943 | $data = []; |
| 2944 | |
| 2945 | $titleKey = $this->getArticleID(); |
| 2946 | |
| 2947 | if ( $titleKey === 0 ) { |
| 2948 | return $data; |
| 2949 | } |
| 2950 | |
| 2951 | $migrationStage = MediaWikiServices::getInstance()->getMainConfig()->get( |
| 2952 | MainConfigNames::CategoryLinksSchemaMigrationStage |
| 2953 | ); |
| 2954 | |
| 2955 | $dbr = $this->getDbProvider()->getReplicaDatabase(); |
| 2956 | $queryBuilder = $dbr->newSelectQueryBuilder() |
| 2957 | ->from( 'categorylinks' ) |
| 2958 | ->where( [ 'cl_from' => $titleKey ] ); |
| 2959 | |
| 2960 | if ( $migrationStage & SCHEMA_COMPAT_READ_OLD ) { |
| 2961 | $queryBuilder->select( 'cl_to' ); |
| 2962 | } else { |
| 2963 | $queryBuilder->field( 'lt_title', 'cl_to' ) |
| 2964 | ->join( 'linktarget', null, 'cl_target_id = lt_id' ) |
| 2965 | ->where( [ 'lt_namespace' => NS_CATEGORY ] ); |
| 2966 | } |
| 2967 | $res = $queryBuilder->caller( __METHOD__ )->fetchResultSet(); |
| 2968 | |
| 2969 | if ( $res->numRows() > 0 ) { |
| 2970 | $contLang = MediaWikiServices::getInstance()->getContentLanguage(); |
| 2971 | foreach ( $res as $row ) { |
| 2972 | // $data[] = Title::newFromText( $contLang->getNsText ( NS_CATEGORY ).':'.$row->cl_to); |
| 2973 | $data[$contLang->getNsText( NS_CATEGORY ) . ':' . $row->cl_to] = |
| 2974 | $this->getFullText(); |
| 2975 | } |
| 2976 | } |
| 2977 | return $data; |
| 2978 | } |
| 2979 | |
| 2980 | /** |
| 2981 | * Get a tree of parent categories |
| 2982 | * |
| 2983 | * @param array $children Array with the children in the keys, to check for circular refs |
| 2984 | * @return array Tree of parent categories |
| 2985 | */ |
| 2986 | public function getParentCategoryTree( $children = [] ) { |
| 2987 | $stack = []; |
| 2988 | $parents = $this->getParentCategories(); |
| 2989 | |
| 2990 | if ( $parents ) { |
| 2991 | foreach ( $parents as $parent => $current ) { |
| 2992 | if ( array_key_exists( $parent, $children ) ) { |
| 2993 | # Circular reference |
| 2994 | $stack[$parent] = []; |
| 2995 | } else { |
| 2996 | $nt = self::newFromText( $parent ); |
| 2997 | if ( $nt ) { |
| 2998 | $stack[$parent] = $nt->getParentCategoryTree( $children + [ $parent => 1 ] ); |
| 2999 | } |
| 3000 | } |
| 3001 | } |
| 3002 | } |
| 3003 | |
| 3004 | return $stack; |
| 3005 | } |
| 3006 | |
| 3007 | /** |
| 3008 | * Get an associative array for selecting this title from |
| 3009 | * the "page" table |
| 3010 | * |
| 3011 | * @return array Array suitable for the $where parameter of DB::select() |
| 3012 | */ |
| 3013 | public function pageCond() { |
| 3014 | if ( $this->mArticleID > 0 ) { |
| 3015 | // PK avoids secondary lookups in InnoDB, shouldn't hurt other DBs |
| 3016 | return [ 'page_id' => $this->mArticleID ]; |
| 3017 | } else { |
| 3018 | return [ 'page_namespace' => $this->mNamespace, 'page_title' => $this->mDbkeyform ]; |
| 3019 | } |
| 3020 | } |
| 3021 | |
| 3022 | /** |
| 3023 | * Check if this is a new page. |
| 3024 | * |
| 3025 | * @note This returns false if the page does not exist. |
| 3026 | * @param int $flags one of the READ_XXX constants. |
| 3027 | * |
| 3028 | * @return bool |
| 3029 | */ |
| 3030 | public function isNewPage( $flags = IDBAccessObject::READ_NORMAL ) { |
| 3031 | // NOTE: we rely on PHP casting "0" to false here. |
| 3032 | return (bool)$this->getFieldFromPageStore( 'page_is_new', $flags ); |
| 3033 | } |
| 3034 | |
| 3035 | /** |
| 3036 | * Check whether the number of revisions of this page surpasses $wgDeleteRevisionsLimit |
| 3037 | * @deprecated since 1.37 External callers shouldn't need to know about this. |
| 3038 | * |
| 3039 | * @return bool |
| 3040 | */ |
| 3041 | public function isBigDeletion() { |
| 3042 | global $wgDeleteRevisionsLimit; |
| 3043 | |
| 3044 | if ( !$wgDeleteRevisionsLimit ) { |
| 3045 | return false; |
| 3046 | } |
| 3047 | |
| 3048 | if ( $this->mIsBigDeletion === null ) { |
| 3049 | $dbr = $this->getDbProvider()->getReplicaDatabase(); |
| 3050 | $revCount = $dbr->newSelectQueryBuilder() |
| 3051 | ->select( '1' ) |
| 3052 | ->from( 'revision' ) |
| 3053 | ->where( [ 'rev_page' => $this->getArticleID() ] ) |
| 3054 | ->limit( $wgDeleteRevisionsLimit + 1 ) |
| 3055 | ->caller( __METHOD__ )->fetchRowCount(); |
| 3056 | |
| 3057 | $this->mIsBigDeletion = $revCount > $wgDeleteRevisionsLimit; |
| 3058 | } |
| 3059 | |
| 3060 | return $this->mIsBigDeletion; |
| 3061 | } |
| 3062 | |
| 3063 | /** |
| 3064 | * Get the approximate revision count of this page. |
| 3065 | * |
| 3066 | * @return int |
| 3067 | */ |
| 3068 | public function estimateRevisionCount() { |
| 3069 | if ( !$this->exists() ) { |
| 3070 | return 0; |
| 3071 | } |
| 3072 | |
| 3073 | if ( $this->mEstimateRevisions === null ) { |
| 3074 | $dbr = $this->getDbProvider()->getReplicaDatabase(); |
| 3075 | $this->mEstimateRevisions = $dbr->newSelectQueryBuilder() |
| 3076 | ->select( '*' ) |
| 3077 | ->from( 'revision' ) |
| 3078 | ->where( [ 'rev_page' => $this->getArticleID() ] ) |
| 3079 | ->caller( __METHOD__ ) |
| 3080 | ->estimateRowCount(); |
| 3081 | } |
| 3082 | |
| 3083 | return $this->mEstimateRevisions; |
| 3084 | } |
| 3085 | |
| 3086 | /** |
| 3087 | * Compares with another Title. |
| 3088 | * |
| 3089 | * A Title object is considered equal to another Title if it has the same text, |
| 3090 | * the same interwiki prefix, and the same namespace. |
| 3091 | * |
| 3092 | * @note This is different from {@see LinkTarget::isSameLinkAs} which also compares the fragment |
| 3093 | * part. |
| 3094 | * |
| 3095 | * @phpcs:disable MediaWiki.Commenting.FunctionComment.ObjectTypeHintParam |
| 3096 | * @param Title|object $other |
| 3097 | * |
| 3098 | * @return bool |
| 3099 | */ |
| 3100 | public function equals( object $other ) { |
| 3101 | // NOTE: In contrast to isSameLinkAs(), this ignores the fragment part! |
| 3102 | // NOTE: In contrast to isSamePageAs(), this ignores the page ID! |
| 3103 | // NOTE: === is necessary for proper matching of number-like titles |
| 3104 | return $other instanceof Title |
| 3105 | && $this->getInterwiki() === $other->getInterwiki() |
| 3106 | && $this->getNamespace() === $other->getNamespace() |
| 3107 | && $this->getDBkey() === $other->getDBkey(); |
| 3108 | } |
| 3109 | |
| 3110 | /** |
| 3111 | * @inheritDoc |
| 3112 | * @since 1.36 |
| 3113 | */ |
| 3114 | public function isSamePageAs( PageReference $other ): bool { |
| 3115 | // NOTE: keep in sync with PageReferenceValue::isSamePageAs()! |
| 3116 | return $this->getWikiId() === $other->getWikiId() |
| 3117 | && $this->getNamespace() === $other->getNamespace() |
| 3118 | && $this->getDBkey() === $other->getDBkey(); |
| 3119 | } |
| 3120 | |
| 3121 | /** |
| 3122 | * Check if this title is a subpage of another title |
| 3123 | * |
| 3124 | * @param Title $title |
| 3125 | * @return bool |
| 3126 | */ |
| 3127 | public function isSubpageOf( Title $title ) { |
| 3128 | return $this->mInterwiki === $title->mInterwiki |
| 3129 | && $this->mNamespace == $title->mNamespace |
| 3130 | && str_starts_with( $this->mDbkeyform, $title->mDbkeyform . '/' ); |
| 3131 | } |
| 3132 | |
| 3133 | /** |
| 3134 | * Check if page exists. For historical reasons, this function simply |
| 3135 | * checks for the existence of the title in the page table, and will |
| 3136 | * thus return false for interwiki links, special pages and the like. |
| 3137 | * If you want to know if a title can be meaningfully viewed, you should |
| 3138 | * probably call the isKnown() method instead. |
| 3139 | * |
| 3140 | * @param int $flags A bitfield of IDBAccessObject::READ_* constants |
| 3141 | * @return bool |
| 3142 | */ |
| 3143 | public function exists( $flags = 0 ): bool { |
| 3144 | $exists = $this->getArticleID( $flags ) != 0; |
| 3145 | ( new HookRunner( MediaWikiServices::getInstance()->getHookContainer() ) )->onTitleExists( $this, $exists ); |
| 3146 | return $exists; |
| 3147 | } |
| 3148 | |
| 3149 | /** |
| 3150 | * Should links to this title be shown as potentially viewable (i.e. as |
| 3151 | * "bluelinks"), even if there's no record by this title in the page |
| 3152 | * table? |
| 3153 | * |
| 3154 | * This function is semi-deprecated for public use, as well as somewhat |
| 3155 | * misleadingly named. You probably just want to call isKnown(), which |
| 3156 | * calls this function internally. |
| 3157 | * |
| 3158 | * (ISSUE: Most of these checks are cheap, but the file existence check |
| 3159 | * can potentially be quite expensive. Including it here fixes a lot of |
| 3160 | * existing code, but we might want to add an optional parameter to skip |
| 3161 | * it and any other expensive checks.) |
| 3162 | * |
| 3163 | * @return bool |
| 3164 | */ |
| 3165 | public function isAlwaysKnown() { |
| 3166 | $isKnown = null; |
| 3167 | |
| 3168 | $services = MediaWikiServices::getInstance(); |
| 3169 | ( new HookRunner( $services->getHookContainer() ) )->onTitleIsAlwaysKnown( $this, $isKnown ); |
| 3170 | |
| 3171 | if ( $isKnown !== null ) { |
| 3172 | return $isKnown; |
| 3173 | } |
| 3174 | |
| 3175 | if ( $this->isExternal() ) { |
| 3176 | return true; // any interwiki link might be viewable, for all we know |
| 3177 | } |
| 3178 | |
| 3179 | switch ( $this->mNamespace ) { |
| 3180 | case NS_MEDIA: |
| 3181 | case NS_FILE: |
| 3182 | // file exists, possibly in a foreign repo |
| 3183 | return (bool)$services->getRepoGroup()->findFile( $this ); |
| 3184 | case NS_SPECIAL: |
| 3185 | // valid special page |
| 3186 | return $services->getSpecialPageFactory()->exists( $this->mDbkeyform ); |
| 3187 | case NS_MAIN: |
| 3188 | // selflink, possibly with fragment |
| 3189 | return $this->mDbkeyform == ''; |
| 3190 | case NS_MEDIAWIKI: |
| 3191 | // known system message |
| 3192 | return $this->hasSourceText() !== false; |
| 3193 | default: |
| 3194 | return false; |
| 3195 | } |
| 3196 | } |
| 3197 | |
| 3198 | /** |
| 3199 | * Does this title refer to a page that can (or might) be meaningfully |
| 3200 | * viewed? In particular, this function may be used to determine if |
| 3201 | * links to the title should be rendered as "bluelinks" (as opposed to |
| 3202 | * "redlinks" to non-existent pages). |
| 3203 | * Adding something else to this function will cause inconsistency |
| 3204 | * since LinkHolderArray calls isAlwaysKnown() and does its own |
| 3205 | * page existence check. |
| 3206 | * |
| 3207 | * @return bool |
| 3208 | */ |
| 3209 | public function isKnown() { |
| 3210 | return $this->isAlwaysKnown() || $this->exists(); |
| 3211 | } |
| 3212 | |
| 3213 | /** |
| 3214 | * Does this page have source text? |
| 3215 | * |
| 3216 | * @return bool |
| 3217 | */ |
| 3218 | public function hasSourceText() { |
| 3219 | if ( $this->exists() ) { |
| 3220 | return true; |
| 3221 | } |
| 3222 | |
| 3223 | if ( $this->mNamespace === NS_MEDIAWIKI ) { |
| 3224 | $services = MediaWikiServices::getInstance(); |
| 3225 | // If the page doesn't exist but is a known system message, default |
| 3226 | // message content will be displayed, same for language subpages- |
| 3227 | // Use always content language to avoid loading hundreds of languages |
| 3228 | // to get the link color. |
| 3229 | $contLang = $services->getContentLanguage(); |
| 3230 | [ $name, ] = $services->getMessageCache()->figureMessage( |
| 3231 | $contLang->lcfirst( $this->getText() ) |
| 3232 | ); |
| 3233 | $message = wfMessage( $name )->inLanguage( $contLang )->useDatabase( false ); |
| 3234 | return $message->exists(); |
| 3235 | } |
| 3236 | |
| 3237 | return false; |
| 3238 | } |
| 3239 | |
| 3240 | /** |
| 3241 | * Get the default (plain) message contents for a page that overrides an |
| 3242 | * interface message key. |
| 3243 | * |
| 3244 | * Primary use cases: |
| 3245 | * |
| 3246 | * - Article: |
| 3247 | * - Show default when viewing the page. The Article::getSubstituteContent |
| 3248 | * method displays the default message content, instead of the |
| 3249 | * 'noarticletext' placeholder message normally used. |
| 3250 | * |
| 3251 | * - EditPage: |
| 3252 | * - Title of edit page. When creating an interface message override, |
| 3253 | * the editor is told they are "Editing the page", instead of |
| 3254 | * "Creating the page". (EditPage::setHeaders) |
| 3255 | * - Edit notice. The 'translateinterface' edit notice is shown when creating |
| 3256 | * or editing an interface message override. (EditPage::showIntro) |
| 3257 | * - Opening the editor. The contents of the localisation message are used |
| 3258 | * as contents of the editor when creating a new page in the MediaWiki |
| 3259 | * namespace. This simplifies the process for editors when "changing" |
| 3260 | * an interface message by creating an override. (EditPage::getContentObject) |
| 3261 | * - Showing a diff. The left-hand side of a diff when an editor is |
| 3262 | * previewing their changes before saving the creation of a page in the |
| 3263 | * MediaWiki namespace. (EditPage::showDiff) |
| 3264 | * - Disallowing a save. When attempting to create a MediaWiki-namespace |
| 3265 | * page with the proposed content matching the interface message default, |
| 3266 | * the save is rejected, the same way we disallow blank pages from being |
| 3267 | * created. (EditPage using DefaultTextConstraint) |
| 3268 | * |
| 3269 | * - ApiEditPage: |
| 3270 | * - Default content, when using the 'prepend' or 'append' feature. |
| 3271 | * |
| 3272 | * - SkinTemplate: |
| 3273 | * - Label the create action as "Edit", if the page can be an override. |
| 3274 | * |
| 3275 | * @return string|false |
| 3276 | */ |
| 3277 | public function getDefaultMessageText() { |
| 3278 | $message = $this->getDefaultSystemMessage(); |
| 3279 | |
| 3280 | return $message ? $message->plain() : false; |
| 3281 | } |
| 3282 | |
| 3283 | /** |
| 3284 | * Same as getDefaultMessageText, but returns a Message object. |
| 3285 | * |
| 3286 | * @see ::getDefaultMessageText |
| 3287 | * |
| 3288 | * @return ?Message |
| 3289 | */ |
| 3290 | public function getDefaultSystemMessage(): ?Message { |
| 3291 | if ( $this->mNamespace !== NS_MEDIAWIKI ) { // Just in case |
| 3292 | return null; |
| 3293 | } |
| 3294 | |
| 3295 | [ $name, $lang ] = MediaWikiServices::getInstance()->getMessageCache()->figureMessage( |
| 3296 | MediaWikiServices::getInstance()->getContentLanguage()->lcfirst( $this->getText() ) |
| 3297 | ); |
| 3298 | |
| 3299 | if ( wfMessage( $name )->inLanguage( $lang )->useDatabase( false )->exists() ) { |
| 3300 | return wfMessage( $name )->inLanguage( $lang ); |
| 3301 | } else { |
| 3302 | return null; |
| 3303 | } |
| 3304 | } |
| 3305 | |
| 3306 | /** |
| 3307 | * Updates page_touched for this page; called from LinksUpdate.php |
| 3308 | * |
| 3309 | * @param string|null $purgeTime [optional] TS_MW timestamp |
| 3310 | * @return bool True if the update succeeded |
| 3311 | */ |
| 3312 | public function invalidateCache( $purgeTime = null ) { |
| 3313 | if ( MediaWikiServices::getInstance()->getReadOnlyMode()->isReadOnly() ) { |
| 3314 | return false; |
| 3315 | } |
| 3316 | if ( $this->mArticleID === 0 ) { |
| 3317 | // avoid gap locking if we know it's not there |
| 3318 | return true; |
| 3319 | } |
| 3320 | |
| 3321 | $conds = $this->pageCond(); |
| 3322 | |
| 3323 | // Periodically recompute page_random (T309477). This mitigates bias on |
| 3324 | // Special:Random due deleted pages leaving "gaps" in the distribution. |
| 3325 | // |
| 3326 | // Optimization: Update page_random only for 10% of updates. |
| 3327 | // Optimization: Do this outside the main transaction to avoid locking for too long. |
| 3328 | // Optimization: Update page_random alongside page_touched to avoid extra database writes. |
| 3329 | DeferredUpdates::addUpdate( |
| 3330 | new AutoCommitUpdate( |
| 3331 | $this->getDbProvider()->getPrimaryDatabase(), |
| 3332 | __METHOD__, |
| 3333 | function ( IDatabase $dbw, $fname ) use ( $conds, $purgeTime ) { |
| 3334 | $dbTimestamp = $dbw->timestamp( $purgeTime ?: time() ); |
| 3335 | $update = $dbw->newUpdateQueryBuilder() |
| 3336 | ->update( 'page' ) |
| 3337 | ->set( [ 'page_touched' => $dbTimestamp ] ) |
| 3338 | ->where( $conds ) |
| 3339 | ->andWhere( $dbw->expr( 'page_touched', '<', $dbTimestamp ) ); |
| 3340 | |
| 3341 | if ( mt_rand( 1, 10 ) === 1 ) { |
| 3342 | $update->andSet( [ 'page_random' => wfRandom() ] ); |
| 3343 | } |
| 3344 | |
| 3345 | $update->caller( $fname )->execute(); |
| 3346 | |
| 3347 | MediaWikiServices::getInstance()->getLinkCache()->invalidateTitle( $this ); |
| 3348 | |
| 3349 | WikiModule::invalidateModuleCache( |
| 3350 | $this, null, null, $dbw->getDomainID() ); |
| 3351 | } |
| 3352 | ), |
| 3353 | DeferredUpdates::PRESEND |
| 3354 | ); |
| 3355 | |
| 3356 | return true; |
| 3357 | } |
| 3358 | |
| 3359 | /** |
| 3360 | * Update page_touched timestamps and send CDN purge messages for |
| 3361 | * pages linking to this title. May be sent to the job queue depending |
| 3362 | * on the number of links. Typically called on create and delete. |
| 3363 | */ |
| 3364 | public function touchLinks() { |
| 3365 | $jobs = []; |
| 3366 | $jobs[] = HTMLCacheUpdateJob::newForBacklinks( |
| 3367 | $this, |
| 3368 | 'pagelinks', |
| 3369 | [ 'causeAction' => 'page-touch' ] |
| 3370 | ); |
| 3371 | if ( $this->mNamespace === NS_CATEGORY ) { |
| 3372 | $jobs[] = HTMLCacheUpdateJob::newForBacklinks( |
| 3373 | $this, |
| 3374 | 'categorylinks', |
| 3375 | [ 'causeAction' => 'category-touch' ] |
| 3376 | ); |
| 3377 | } |
| 3378 | |
| 3379 | MediaWikiServices::getInstance()->getJobQueueGroup()->lazyPush( $jobs ); |
| 3380 | } |
| 3381 | |
| 3382 | /** |
| 3383 | * Get the last touched timestamp |
| 3384 | * |
| 3385 | * @param int $flags one of the READ_XXX constants. |
| 3386 | * @return string|false Last-touched timestamp |
| 3387 | */ |
| 3388 | public function getTouched( int $flags = IDBAccessObject::READ_NORMAL ) { |
| 3389 | $touched = $this->getFieldFromPageStore( 'page_touched', $flags ); |
| 3390 | return $touched ? MWTimestamp::convert( TS_MW, $touched ) : false; |
| 3391 | } |
| 3392 | |
| 3393 | /** |
| 3394 | * Generate strings used for xml 'id' names in monobook tabs |
| 3395 | * |
| 3396 | * @param string $prepend Defaults to 'nstab-' |
| 3397 | * @return string XML 'id' name |
| 3398 | */ |
| 3399 | public function getNamespaceKey( $prepend = 'nstab-' ) { |
| 3400 | // Gets the subject namespace of this title |
| 3401 | $nsInfo = MediaWikiServices::getInstance()->getNamespaceInfo(); |
| 3402 | $subjectNS = $nsInfo->getSubject( $this->mNamespace ); |
| 3403 | // Prefer canonical namespace name for HTML IDs |
| 3404 | $namespaceKey = $nsInfo->getCanonicalName( $subjectNS ); |
| 3405 | if ( $namespaceKey === false ) { |
| 3406 | // Fallback to localised text |
| 3407 | $namespaceKey = $this->getSubjectNsText(); |
| 3408 | } |
| 3409 | // Makes namespace key lowercase |
| 3410 | $namespaceKey = MediaWikiServices::getInstance()->getContentLanguage()->lc( $namespaceKey ); |
| 3411 | // Uses main |
| 3412 | if ( $namespaceKey == '' ) { |
| 3413 | $namespaceKey = 'main'; |
| 3414 | } |
| 3415 | // Changes file to image for backwards compatibility |
| 3416 | if ( $namespaceKey == 'file' ) { |
| 3417 | $namespaceKey = 'image'; |
| 3418 | } |
| 3419 | return $prepend . $namespaceKey; |
| 3420 | } |
| 3421 | |
| 3422 | /** |
| 3423 | * Get all extant redirects to this Title |
| 3424 | * |
| 3425 | * @param int|null $ns Single namespace to consider; null to consider all namespaces |
| 3426 | * @return Title[] |
| 3427 | */ |
| 3428 | public function getRedirectsHere( $ns = null ) { |
| 3429 | $redirs = []; |
| 3430 | |
| 3431 | $queryBuilder = $this->getDbProvider()->getReplicaDatabase()->newSelectQueryBuilder() |
| 3432 | ->select( [ 'page_namespace', 'page_title' ] ) |
| 3433 | ->from( 'redirect' ) |
| 3434 | ->join( 'page', null, 'rd_from = page_id' ) |
| 3435 | ->where( [ |
| 3436 | 'rd_namespace' => $this->mNamespace, |
| 3437 | 'rd_title' => $this->mDbkeyform, |
| 3438 | 'rd_interwiki' => $this->isExternal() ? $this->mInterwiki : '', |
| 3439 | ] ); |
| 3440 | |
| 3441 | if ( $ns !== null ) { |
| 3442 | $queryBuilder->andWhere( [ 'page_namespace' => $ns ] ); |
| 3443 | } |
| 3444 | |
| 3445 | $res = $queryBuilder->caller( __METHOD__ )->fetchResultSet(); |
| 3446 | |
| 3447 | foreach ( $res as $row ) { |
| 3448 | $redirs[] = self::newFromRow( $row ); |
| 3449 | } |
| 3450 | return $redirs; |
| 3451 | } |
| 3452 | |
| 3453 | /** |
| 3454 | * Check if this Title is a valid redirect target |
| 3455 | * |
| 3456 | * @return bool |
| 3457 | */ |
| 3458 | public function isValidRedirectTarget() { |
| 3459 | global $wgInvalidRedirectTargets; |
| 3460 | |
| 3461 | if ( $this->isSpecialPage() ) { |
| 3462 | // invalid redirect targets are stored in a global array, but explicitly disallow Userlogout here |
| 3463 | foreach ( [ 'Userlogout', ...$wgInvalidRedirectTargets ] as $target ) { |
| 3464 | if ( $this->isSpecial( $target ) ) { |
| 3465 | return false; |
| 3466 | } |
| 3467 | } |
| 3468 | return true; |
| 3469 | } |
| 3470 | |
| 3471 | // relative section links are not valid redirect targets (T278367) |
| 3472 | return $this->getDBkey() !== '' && $this->isValid(); |
| 3473 | } |
| 3474 | |
| 3475 | /** |
| 3476 | * Whether the magic words __INDEX__ and __NOINDEX__ function for this page. |
| 3477 | * |
| 3478 | * @return bool |
| 3479 | */ |
| 3480 | public function canUseNoindex() { |
| 3481 | global $wgExemptFromUserRobotsControl; |
| 3482 | |
| 3483 | $bannedNamespaces = $wgExemptFromUserRobotsControl ?? |
| 3484 | MediaWikiServices::getInstance()->getNamespaceInfo()->getContentNamespaces(); |
| 3485 | |
| 3486 | return !in_array( $this->mNamespace, $bannedNamespaces ); |
| 3487 | } |
| 3488 | |
| 3489 | /** |
| 3490 | * Returns the raw sort key to be used for categories, with the specified |
| 3491 | * prefix. This will be fed to Collation::getSortKey() to get a |
| 3492 | * binary sortkey that can be used for actual sorting. |
| 3493 | * |
| 3494 | * @param string $prefix The prefix to be used, specified using |
| 3495 | * {{defaultsort:}} or like [[Category:Foo|prefix]]. Empty for no |
| 3496 | * prefix. |
| 3497 | * @return string |
| 3498 | */ |
| 3499 | public function getCategorySortkey( $prefix = '' ) { |
| 3500 | $unprefixed = $this->getText(); |
| 3501 | |
| 3502 | // Anything that uses this hook should only depend |
| 3503 | // on the Title object passed in, and should probably |
| 3504 | // tell the users to run updateCollations.php --force |
| 3505 | // in order to re-sort existing category relations. |
| 3506 | ( new HookRunner( MediaWikiServices::getInstance()->getHookContainer() ) ) |
| 3507 | ->onGetDefaultSortkey( $this, $unprefixed ); |
| 3508 | if ( $prefix !== '' ) { |
| 3509 | # Separate with a line feed, so the unprefixed part is only used as |
| 3510 | # a tiebreaker when two pages have the exact same prefix. |
| 3511 | # In UCA, tab is the only character that can sort above LF |
| 3512 | # so we strip both of them from the original prefix. |
| 3513 | $prefix = strtr( $prefix, "\n\t", ' ' ); |
| 3514 | return "$prefix\n$unprefixed"; |
| 3515 | } |
| 3516 | return $unprefixed; |
| 3517 | } |
| 3518 | |
| 3519 | /** |
| 3520 | * Returns the page language code saved in the database, if $wgPageLanguageUseDB is set |
| 3521 | * to true in LocalSettings.php, otherwise returns null. If there is no language saved in |
| 3522 | * the database, it will return null. |
| 3523 | * |
| 3524 | * @param int $flags |
| 3525 | * |
| 3526 | * @return ?string |
| 3527 | */ |
| 3528 | private function getDbPageLanguageCode( int $flags = 0 ): ?string { |
| 3529 | global $wgPageLanguageUseDB; |
| 3530 | |
| 3531 | // check, if the page language could be saved in the database, and if so and |
| 3532 | // the value is not requested already, lookup the page language using PageStore |
| 3533 | if ( $wgPageLanguageUseDB && $this->mDbPageLanguage === false ) { |
| 3534 | $this->mDbPageLanguage = $this->getFieldFromPageStore( 'page_lang', $flags ) ?: null; |
| 3535 | } |
| 3536 | |
| 3537 | return $this->mDbPageLanguage ?: null; |
| 3538 | } |
| 3539 | |
| 3540 | /** |
| 3541 | * Returns the Language object from the page language code saved in the database. |
| 3542 | * If $wgPageLanguageUseDB is set to false or there is no language saved in the database |
| 3543 | * or the language code in the database is invalid or unsupported, it will return null. |
| 3544 | * |
| 3545 | * @return Language|null |
| 3546 | */ |
| 3547 | private function getDbPageLanguage(): ?Language { |
| 3548 | $languageCode = $this->getDbPageLanguageCode(); |
| 3549 | if ( $languageCode === null ) { |
| 3550 | return null; |
| 3551 | } |
| 3552 | $services = MediaWikiServices::getInstance(); |
| 3553 | if ( !$services->getLanguageNameUtils()->isKnownLanguageTag( $languageCode ) ) { |
| 3554 | return null; |
| 3555 | } |
| 3556 | return $services->getLanguageFactory()->getLanguage( $languageCode ); |
| 3557 | } |
| 3558 | |
| 3559 | /** |
| 3560 | * Get the language in which the content of this page is written in |
| 3561 | * wikitext. Defaults to content language, but in certain cases it can be |
| 3562 | * e.g. $wgLang (such as special pages, which are in the user language). |
| 3563 | * |
| 3564 | * @since 1.18 |
| 3565 | * @return Language |
| 3566 | */ |
| 3567 | public function getPageLanguage() { |
| 3568 | global $wgLanguageCode; |
| 3569 | if ( $this->isSpecialPage() ) { |
| 3570 | // special pages are in the user language |
| 3571 | return RequestContext::getMain()->getLanguage(); |
| 3572 | } |
| 3573 | |
| 3574 | // Checking if DB language is set |
| 3575 | $dbPageLanguage = $this->getDbPageLanguage(); |
| 3576 | if ( $dbPageLanguage ) { |
| 3577 | return $dbPageLanguage; |
| 3578 | } |
| 3579 | |
| 3580 | $services = MediaWikiServices::getInstance(); |
| 3581 | if ( !$this->mPageLanguage || $this->mPageLanguage[1] !== $wgLanguageCode ) { |
| 3582 | // Note that this may depend on user settings, so the cache should |
| 3583 | // be only per-request. |
| 3584 | // NOTE: ContentHandler::getPageLanguage() may need to load the |
| 3585 | // content to determine the page language! |
| 3586 | // Checking $wgLanguageCode hasn't changed for the benefit of unit |
| 3587 | // tests. |
| 3588 | $contentHandler = $services->getContentHandlerFactory() |
| 3589 | ->getContentHandler( $this->getContentModel() ); |
| 3590 | $langObj = $contentHandler->getPageLanguage( $this ); |
| 3591 | $this->mPageLanguage = [ $langObj->getCode(), $wgLanguageCode ]; |
| 3592 | } else { |
| 3593 | $langObj = $services->getLanguageFactory() |
| 3594 | ->getLanguage( $this->mPageLanguage[0] ); |
| 3595 | } |
| 3596 | |
| 3597 | return $langObj; |
| 3598 | } |
| 3599 | |
| 3600 | /** |
| 3601 | * Get the language in which the content of this page is written when |
| 3602 | * viewed by user. Defaults to content language, but in certain cases it can be |
| 3603 | * e.g. the user language (such as special pages). |
| 3604 | * |
| 3605 | * @deprecated since 1.42 Use ParserOutput::getLanguage instead. See also OutputPage::getContLangForJS. |
| 3606 | * Hard-deprecated since 1.43. |
| 3607 | * @since 1.20 |
| 3608 | * @return Language |
| 3609 | */ |
| 3610 | public function getPageViewLanguage() { |
| 3611 | wfDeprecated( __METHOD__, '1.42' ); |
| 3612 | $services = MediaWikiServices::getInstance(); |
| 3613 | |
| 3614 | if ( $this->isSpecialPage() ) { |
| 3615 | // If the user chooses a variant, the content is actually |
| 3616 | // in a language whose code is the variant code. |
| 3617 | $userLang = RequestContext::getMain()->getLanguage(); |
| 3618 | $variant = $this->getLanguageConverter( $userLang )->getPreferredVariant(); |
| 3619 | if ( $userLang->getCode() !== $variant ) { |
| 3620 | return $services->getLanguageFactory() |
| 3621 | ->getLanguage( $variant ); |
| 3622 | } |
| 3623 | |
| 3624 | return $userLang; |
| 3625 | } |
| 3626 | |
| 3627 | // Checking if DB language is set |
| 3628 | $pageLang = $this->getDbPageLanguage(); |
| 3629 | if ( $pageLang ) { |
| 3630 | $variant = $this->getLanguageConverter( $pageLang )->getPreferredVariant(); |
| 3631 | if ( $pageLang->getCode() !== $variant ) { |
| 3632 | return $services->getLanguageFactory() |
| 3633 | ->getLanguage( $variant ); |
| 3634 | } |
| 3635 | |
| 3636 | return $pageLang; |
| 3637 | } |
| 3638 | |
| 3639 | // @note Can't be cached persistently, depends on user settings. |
| 3640 | // @note ContentHandler::getPageViewLanguage() may need to load the |
| 3641 | // content to determine the page language! |
| 3642 | $contentHandler = $services->getContentHandlerFactory() |
| 3643 | ->getContentHandler( $this->getContentModel() ); |
| 3644 | $pageLang = $contentHandler->getPageViewLanguage( $this ); |
| 3645 | return $pageLang; |
| 3646 | } |
| 3647 | |
| 3648 | /** |
| 3649 | * Get a list of rendered edit notices for this page. |
| 3650 | * |
| 3651 | * Array is keyed by the original message key, and values are rendered using parseAsBlock, so |
| 3652 | * they will already be wrapped in paragraphs. |
| 3653 | * |
| 3654 | * @since 1.21 |
| 3655 | * @param int $oldid Revision ID that's being edited |
| 3656 | * @return string[] |
| 3657 | */ |
| 3658 | public function getEditNotices( $oldid = 0 ) { |
| 3659 | $notices = []; |
| 3660 | |
| 3661 | $editnotice_base = 'editnotice-' . $this->mNamespace; |
| 3662 | // Optional notice for the entire namespace |
| 3663 | $messages = [ $editnotice_base => 'namespace' ]; |
| 3664 | |
| 3665 | if ( |
| 3666 | MediaWikiServices::getInstance()->getNamespaceInfo()-> |
| 3667 | hasSubpages( $this->mNamespace ) |
| 3668 | ) { |
| 3669 | // Optional notice for page itself and any parent page |
| 3670 | foreach ( explode( '/', $this->mDbkeyform ) as $part ) { |
| 3671 | $editnotice_base .= '-' . $part; |
| 3672 | $messages[$editnotice_base] = 'base'; |
| 3673 | } |
| 3674 | } else { |
| 3675 | // Even if there are no subpages in namespace, we still don't want "/" in MediaWiki message keys |
| 3676 | $messages[$editnotice_base . '-' . strtr( $this->mDbkeyform, '/', '-' )] = 'page'; |
| 3677 | } |
| 3678 | |
| 3679 | foreach ( $messages as $editnoticeText => $class ) { |
| 3680 | // The following messages are used here: |
| 3681 | // * editnotice-0 |
| 3682 | // * editnotice-0-Title |
| 3683 | // * editnotice-0-Title-Subpage |
| 3684 | // * editnotice-… |
| 3685 | $msg = wfMessage( $editnoticeText )->page( $this ); |
| 3686 | if ( $msg->exists() ) { |
| 3687 | $html = $msg->parseAsBlock(); |
| 3688 | // Edit notices may have complex logic, but output nothing (T91715) |
| 3689 | if ( trim( $html ) !== '' ) { |
| 3690 | $notices[$editnoticeText] = Html::rawElement( |
| 3691 | 'div', |
| 3692 | [ 'class' => [ |
| 3693 | 'mw-editnotice', |
| 3694 | // The following classes are used here: |
| 3695 | // * mw-editnotice-namespace |
| 3696 | // * mw-editnotice-base |
| 3697 | // * mw-editnotice-page |
| 3698 | "mw-editnotice-$class", |
| 3699 | // The following classes are used here: |
| 3700 | // * mw-editnotice-0 |
| 3701 | // * mw-editnotice-… |
| 3702 | Sanitizer::escapeClass( "mw-$editnoticeText" ) |
| 3703 | ] ], |
| 3704 | $html |
| 3705 | ); |
| 3706 | } |
| 3707 | } |
| 3708 | } |
| 3709 | |
| 3710 | ( new HookRunner( MediaWikiServices::getInstance()->getHookContainer() ) ) |
| 3711 | ->onTitleGetEditNotices( $this, $oldid, $notices ); |
| 3712 | return $notices; |
| 3713 | } |
| 3714 | |
| 3715 | /** |
| 3716 | * @param string $field |
| 3717 | * @param int $flags Bitfield of IDBAccessObject::READ_* constants |
| 3718 | * @return string|false |
| 3719 | */ |
| 3720 | private function getFieldFromPageStore( $field, $flags ) { |
| 3721 | $pageStore = MediaWikiServices::getInstance()->getPageStore(); |
| 3722 | |
| 3723 | if ( !in_array( $field, $pageStore->getSelectFields(), true ) ) { |
| 3724 | throw new InvalidArgumentException( "Unknown field: $field" ); |
| 3725 | } |
| 3726 | |
| 3727 | if ( $flags === IDBAccessObject::READ_NORMAL && $this->mArticleID === 0 ) { |
| 3728 | // page does not exist |
| 3729 | return false; |
| 3730 | } |
| 3731 | |
| 3732 | if ( !$this->canExist() ) { |
| 3733 | return false; |
| 3734 | } |
| 3735 | |
| 3736 | $page = $pageStore->getPageByReference( $this, $flags ); |
| 3737 | |
| 3738 | if ( $page instanceof PageStoreRecord ) { |
| 3739 | return $page->getField( $field ); |
| 3740 | } else { |
| 3741 | // The page record failed to load, remember the page as non-existing. |
| 3742 | // Note that this can happen even if a page ID was known before under some |
| 3743 | // rare circumstances, if this method is called with the READ_LATEST bit set |
| 3744 | // and the page has been deleted since the ID had initially been determined. |
| 3745 | $this->mArticleID = 0; |
| 3746 | return false; |
| 3747 | } |
| 3748 | } |
| 3749 | |
| 3750 | /** |
| 3751 | * @return array |
| 3752 | */ |
| 3753 | public function __sleep() { |
| 3754 | return [ |
| 3755 | 'mNamespace', |
| 3756 | 'mDbkeyform', |
| 3757 | 'mFragment', |
| 3758 | 'mInterwiki', |
| 3759 | 'mLocalInterwiki', |
| 3760 | ]; |
| 3761 | } |
| 3762 | |
| 3763 | public function __wakeup() { |
| 3764 | $this->mArticleID = ( $this->mNamespace >= 0 ) ? -1 : 0; |
| 3765 | $this->mUrlform = wfUrlencode( $this->mDbkeyform ); |
| 3766 | $this->mTextform = strtr( $this->mDbkeyform, '_', ' ' ); |
| 3767 | } |
| 3768 | |
| 3769 | public function __clone() { |
| 3770 | $this->mInstanceCacheKey = null; |
| 3771 | } |
| 3772 | |
| 3773 | /** |
| 3774 | * Returns false to indicate that this Title belongs to the local wiki. |
| 3775 | * |
| 3776 | * @note The behavior of this method is considered undefined for interwiki links. |
| 3777 | * At the moment, this method always returns false. But this may change in the future. |
| 3778 | * |
| 3779 | * @since 1.36 |
| 3780 | * @return string|false Always self::LOCAL |
| 3781 | */ |
| 3782 | public function getWikiId() { |
| 3783 | return self::LOCAL; |
| 3784 | } |
| 3785 | |
| 3786 | /** |
| 3787 | * Returns the page ID. |
| 3788 | * |
| 3789 | * If this ID is 0, this means the page does not exist. |
| 3790 | * |
| 3791 | * @see getArticleID() |
| 3792 | * @since 1.36, since 1.35.6 as an alias of getArticleID() |
| 3793 | * |
| 3794 | * @param string|false $wikiId The wiki ID expected by the caller. |
| 3795 | * |
| 3796 | * @throws PreconditionException if this Title instance does not represent a proper page, |
| 3797 | * that is, if it is a section link, interwiki link, link to a special page, or such. |
| 3798 | * @throws PreconditionException if $wikiId is not false. |
| 3799 | * |
| 3800 | * @return int |
| 3801 | */ |
| 3802 | public function getId( $wikiId = self::LOCAL ): int { |
| 3803 | $this->assertWiki( $wikiId ); |
| 3804 | $this->assertProperPage(); |
| 3805 | return $this->getArticleID(); |
| 3806 | } |
| 3807 | |
| 3808 | /** |
| 3809 | * Code that requires this Title to be a "proper page" in the sense |
| 3810 | * defined by PageIdentity should call this method. |
| 3811 | * |
| 3812 | * For the purpose of the Title class, a proper page is one that can |
| 3813 | * exist in the page table. That is, a Title represents a proper page |
| 3814 | * if canExist() returns true. |
| 3815 | * |
| 3816 | * @see canExist() |
| 3817 | * |
| 3818 | * @throws PreconditionException |
| 3819 | */ |
| 3820 | private function assertProperPage() { |
| 3821 | Assert::precondition( |
| 3822 | $this->canExist(), |
| 3823 | 'This Title instance does not represent a proper page, but merely a link target.' |
| 3824 | ); |
| 3825 | } |
| 3826 | |
| 3827 | /** |
| 3828 | * Returns the page represented by this Title as a ProperPageIdentity. |
| 3829 | * The ProperPageIdentity returned by this method is guaranteed to be immutable. |
| 3830 | * If this Title does not represent a proper page, an exception is thrown. |
| 3831 | * |
| 3832 | * It is preferred to use this method rather than using the Title as a PageIdentity directly. |
| 3833 | * |
| 3834 | * @return ProperPageIdentity |
| 3835 | * @throws PreconditionException if the page is not a proper page, that is, if it is a section |
| 3836 | * link, interwiki link, link to a special page, or such. |
| 3837 | * @since 1.36 |
| 3838 | */ |
| 3839 | public function toPageIdentity(): ProperPageIdentity { |
| 3840 | // TODO: replace individual member fields with a PageIdentityValue that is always present |
| 3841 | |
| 3842 | $this->assertProperPage(); |
| 3843 | |
| 3844 | return new PageIdentityValue( |
| 3845 | $this->getId(), |
| 3846 | $this->getNamespace(), |
| 3847 | $this->getDBkey(), |
| 3848 | $this->getWikiId() |
| 3849 | ); |
| 3850 | } |
| 3851 | |
| 3852 | /** |
| 3853 | * Returns the page represented by this Title as a ProperPageRecord. |
| 3854 | * The PageRecord returned by this method is guaranteed to be immutable, |
| 3855 | * the page is guaranteed to exist. |
| 3856 | * |
| 3857 | * @note For now, this method queries the database on every call. |
| 3858 | * @since 1.36 |
| 3859 | * |
| 3860 | * @param int $flags A bitfield of IDBAccessObject::READ_* constants |
| 3861 | * |
| 3862 | * @return ExistingPageRecord |
| 3863 | * @throws PreconditionException if the page does not exist, or is not a proper page, |
| 3864 | * that is, if it is a section link, interwiki link, link to a special page, or such. |
| 3865 | */ |
| 3866 | public function toPageRecord( $flags = 0 ): ExistingPageRecord { |
| 3867 | // TODO: Cache this? Construct is more efficiently? |
| 3868 | |
| 3869 | $this->assertProperPage(); |
| 3870 | |
| 3871 | Assert::precondition( |
| 3872 | $this->exists( $flags ), |
| 3873 | 'This Title instance does not represent an existing page: ' . $this |
| 3874 | ); |
| 3875 | |
| 3876 | return new PageStoreRecord( |
| 3877 | (object)[ |
| 3878 | 'page_id' => $this->getArticleID( $flags ), |
| 3879 | 'page_namespace' => $this->getNamespace(), |
| 3880 | 'page_title' => $this->getDBkey(), |
| 3881 | 'page_wiki_id' => $this->getWikiId(), |
| 3882 | 'page_latest' => $this->getLatestRevID( $flags ), |
| 3883 | 'page_is_new' => $this->isNewPage( $flags ), |
| 3884 | 'page_is_redirect' => $this->isRedirect( $flags ), |
| 3885 | 'page_touched' => $this->getTouched( $flags ), |
| 3886 | 'page_lang' => $this->getDbPageLanguageCode( $flags ), |
| 3887 | ], |
| 3888 | PageIdentity::LOCAL |
| 3889 | ); |
| 3890 | } |
| 3891 | |
| 3892 | } |