4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 * http://www.gnu.org/copyleft/gpl.html
22 use MediaWiki\MediaWikiServices;
25 * Handles the backend logic of moving a page from one title
42 public function __construct( Title $oldTitle, Title $newTitle ) {
43 $this->oldTitle = $oldTitle;
44 $this->newTitle = $newTitle;
47 public function checkPermissions( User $user, $reason ) {
48 $status = new Status();
50 $errors = wfMergeErrorArrays(
51 $this->oldTitle->getUserPermissionsErrors( 'move', $user ),
52 $this->oldTitle->getUserPermissionsErrors( 'edit', $user ),
53 $this->newTitle->getUserPermissionsErrors( 'move-target', $user ),
54 $this->newTitle->getUserPermissionsErrors( 'edit', $user )
57 // Convert into a Status object
59 foreach ( $errors as $error ) {
60 call_user_func_array( [ $status, 'fatal' ], $error );
64 if ( EditPage::matchSummarySpamRegex( $reason ) !== false ) {
65 // This is kind of lame, won't display nice
66 $status->fatal( 'spamprotectiontext' );
69 $tp = $this->newTitle->getTitleProtection();
70 if ( $tp !== false && !$user->isAllowed( $tp['permission'] ) ) {
71 $status->fatal( 'cantmove-titleprotected' );
74 Hooks::run( 'MovePageCheckPermissions',
75 [ $this->oldTitle, $this->newTitle, $user, $reason, $status ]
82 * Does various sanity checks that the move is
83 * valid. Only things based on the two titles
84 * should be checked here.
88 public function isValidMove() {
89 global $wgContentHandlerUseDB;
90 $status = new Status();
92 if ( $this->oldTitle->equals( $this->newTitle ) ) {
93 $status->fatal( 'selfmove' );
95 if ( !$this->oldTitle->isMovable() ) {
96 $status->fatal( 'immobile-source-namespace', $this->oldTitle->getNsText() );
98 if ( $this->newTitle->isExternal() ) {
99 $status->fatal( 'immobile-target-namespace-iw' );
101 if ( !$this->newTitle->isMovable() ) {
102 $status->fatal( 'immobile-target-namespace', $this->newTitle->getNsText() );
105 $oldid = $this->oldTitle->getArticleID();
107 if ( strlen( $this->newTitle->getDBkey() ) < 1 ) {
108 $status->fatal( 'articleexists' );
111 ( $this->oldTitle->getDBkey() == '' ) ||
113 ( $this->newTitle->getDBkey() == '' )
115 $status->fatal( 'badarticleerror' );
118 # The move is allowed only if (1) the target doesn't exist, or
119 # (2) the target is a redirect to the source, and has no history
120 # (so we can undo bad moves right after they're done).
121 if ( $this->newTitle->getArticleID() && !$this->isValidMoveTarget() ) {
122 $status->fatal( 'articleexists' );
125 // Content model checks
126 if ( !$wgContentHandlerUseDB &&
127 $this->oldTitle->getContentModel() !== $this->newTitle->getContentModel() ) {
128 // can't move a page if that would change the page's content model
131 ContentHandler::getLocalizedName( $this->oldTitle->getContentModel() ),
132 ContentHandler::getLocalizedName( $this->newTitle->getContentModel() )
135 !ContentHandler::getForTitle( $this->oldTitle )->canBeUsedOn( $this->newTitle )
138 'content-not-allowed-here',
139 ContentHandler::getLocalizedName( $this->oldTitle->getContentModel() ),
140 $this->newTitle->getPrefixedText()
144 // Image-specific checks
145 if ( $this->oldTitle->inNamespace( NS_FILE ) ) {
146 $status->merge( $this->isValidFileMove() );
149 if ( $this->newTitle->inNamespace( NS_FILE ) && !$this->oldTitle->inNamespace( NS_FILE ) ) {
150 $status->fatal( 'nonfile-cannot-move-to-file' );
153 // Hook for extensions to say a title can't be moved for technical reasons
154 Hooks::run( 'MovePageIsValidMove', [ $this->oldTitle, $this->newTitle, $status ] );
160 * Sanity checks for when a file is being moved
164 protected function isValidFileMove() {
165 $status = new Status();
166 $file = wfLocalFile( $this->oldTitle );
167 $file->load( File::READ_LATEST );
168 if ( $file->exists() ) {
169 if ( $this->newTitle->getText() != wfStripIllegalFilenameChars( $this->newTitle->getText() ) ) {
170 $status->fatal( 'imageinvalidfilename' );
172 if ( !File::checkExtensionCompatibility( $file, $this->newTitle->getDBkey() ) ) {
173 $status->fatal( 'imagetypemismatch' );
177 if ( !$this->newTitle->inNamespace( NS_FILE ) ) {
178 $status->fatal( 'imagenocrossnamespace' );
185 * Checks if $this can be moved to a given Title
186 * - Selects for update, so don't call it unless you mean business
191 protected function isValidMoveTarget() {
192 # Is it an existing file?
193 if ( $this->newTitle->inNamespace( NS_FILE ) ) {
194 $file = wfLocalFile( $this->newTitle );
195 $file->load( File::READ_LATEST );
196 if ( $file->exists() ) {
197 wfDebug( __METHOD__ . ": file exists\n" );
201 # Is it a redirect with no history?
202 if ( !$this->newTitle->isSingleRevRedirect() ) {
203 wfDebug( __METHOD__ . ": not a one-rev redirect\n" );
206 # Get the article text
207 $rev = Revision::newFromTitle( $this->newTitle, false, Revision::READ_LATEST );
208 if ( !is_object( $rev ) ) {
211 $content = $rev->getContent();
212 # Does the redirect point to the source?
213 # Or is it a broken self-redirect, usually caused by namespace collisions?
214 $redirTitle = $content ? $content->getRedirectTarget() : null;
217 if ( $redirTitle->getPrefixedDBkey() !== $this->oldTitle->getPrefixedDBkey() &&
218 $redirTitle->getPrefixedDBkey() !== $this->newTitle->getPrefixedDBkey() ) {
219 wfDebug( __METHOD__ . ": redirect points to other page\n" );
225 # Fail safe (not a redirect after all. strange.)
226 wfDebug( __METHOD__ . ": failsafe: database says " . $this->newTitle->getPrefixedDBkey() .
227 " is a redirect, but it doesn't contain a valid redirect.\n" );
234 * @param string $reason
235 * @param bool $createRedirect
236 * @param string[] $changeTags Change tags to apply to the entry in the move log. Caller
237 * should perform permission checks with ChangeTags::canAddTagsAccompanyingChange
240 public function move( User $user, $reason, $createRedirect, array $changeTags = [] ) {
241 global $wgCategoryCollation;
243 Hooks::run( 'TitleMove', [ $this->oldTitle, $this->newTitle, $user ] );
245 // If it is a file, move it first.
246 // It is done before all other moving stuff is done because it's hard to revert.
247 $dbw = wfGetDB( DB_MASTER );
248 if ( $this->oldTitle->getNamespace() == NS_FILE ) {
249 $file = wfLocalFile( $this->oldTitle );
250 $file->load( File::READ_LATEST );
251 if ( $file->exists() ) {
252 $status = $file->move( $this->newTitle );
253 if ( !$status->isOK() ) {
257 // Clear RepoGroup process cache
258 RepoGroup::singleton()->clearCache( $this->oldTitle );
259 RepoGroup::singleton()->clearCache( $this->newTitle ); # clear false negative cache
262 $dbw->startAtomic( __METHOD__ );
264 Hooks::run( 'TitleMoveStarting', [ $this->oldTitle, $this->newTitle, $user ] );
266 $pageid = $this->oldTitle->getArticleID( Title::GAID_FOR_UPDATE );
267 $protected = $this->oldTitle->isProtected();
269 // Do the actual move; if this fails, it will throw an MWException(!)
270 $nullRevision = $this->moveToInternal( $user, $this->newTitle, $reason, $createRedirect,
273 // Refresh the sortkey for this row. Be careful to avoid resetting
274 // cl_timestamp, which may disturb time-based lists on some sites.
275 // @todo This block should be killed, it's duplicating code
276 // from LinksUpdate::getCategoryInsertions() and friends.
277 $prefixes = $dbw->select(
279 [ 'cl_sortkey_prefix', 'cl_to' ],
280 [ 'cl_from' => $pageid ],
283 if ( $this->newTitle->getNamespace() == NS_CATEGORY ) {
285 } elseif ( $this->newTitle->getNamespace() == NS_FILE ) {
290 foreach ( $prefixes as $prefixRow ) {
291 $prefix = $prefixRow->cl_sortkey_prefix;
292 $catTo = $prefixRow->cl_to;
293 $dbw->update( 'categorylinks',
295 'cl_sortkey' => Collation::singleton()->getSortKey(
296 $this->newTitle->getCategorySortkey( $prefix ) ),
297 'cl_collation' => $wgCategoryCollation,
299 'cl_timestamp=cl_timestamp' ],
301 'cl_from' => $pageid,
307 $redirid = $this->oldTitle->getArticleID();
310 # Protect the redirect title as the title used to be...
314 [ 'pr_page' => $pageid ],
319 foreach ( $res as $row ) {
321 'pr_page' => $redirid,
322 'pr_type' => $row->pr_type,
323 'pr_level' => $row->pr_level,
324 'pr_cascade' => $row->pr_cascade,
325 'pr_user' => $row->pr_user,
326 'pr_expiry' => $row->pr_expiry
329 $dbw->insert( 'page_restrictions', $rowsInsert, __METHOD__, [ 'IGNORE' ] );
331 // Build comment for log
332 $comment = wfMessage(
334 $this->oldTitle->getPrefixedText(),
335 $this->newTitle->getPrefixedText()
336 )->inContentLanguage()->text();
338 $comment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() . $reason;
341 // reread inserted pr_ids for log relation
342 $insertedPrIds = $dbw->select(
345 [ 'pr_page' => $redirid ],
348 $logRelationsValues = [];
349 foreach ( $insertedPrIds as $prid ) {
350 $logRelationsValues[] = $prid->pr_id;
353 // Update the protection log
354 $logEntry = new ManualLogEntry( 'protect', 'move_prot' );
355 $logEntry->setTarget( $this->newTitle );
356 $logEntry->setComment( $comment );
357 $logEntry->setPerformer( $user );
358 $logEntry->setParameters( [
359 '4::oldtitle' => $this->oldTitle->getPrefixedText(),
361 $logEntry->setRelations( [ 'pr_id' => $logRelationsValues ] );
362 $logEntry->setTags( $changeTags );
363 $logId = $logEntry->insert();
364 $logEntry->publish( $logId );
367 // Update *_from_namespace fields as needed
368 if ( $this->oldTitle->getNamespace() != $this->newTitle->getNamespace() ) {
369 $dbw->update( 'pagelinks',
370 [ 'pl_from_namespace' => $this->newTitle->getNamespace() ],
371 [ 'pl_from' => $pageid ],
374 $dbw->update( 'templatelinks',
375 [ 'tl_from_namespace' => $this->newTitle->getNamespace() ],
376 [ 'tl_from' => $pageid ],
379 $dbw->update( 'imagelinks',
380 [ 'il_from_namespace' => $this->newTitle->getNamespace() ],
381 [ 'il_from' => $pageid ],
387 $oldtitle = $this->oldTitle->getDBkey();
388 $newtitle = $this->newTitle->getDBkey();
389 $oldsnamespace = MWNamespace::getSubject( $this->oldTitle->getNamespace() );
390 $newsnamespace = MWNamespace::getSubject( $this->newTitle->getNamespace() );
391 if ( $oldsnamespace != $newsnamespace || $oldtitle != $newtitle ) {
392 $store = MediaWikiServices::getInstance()->getWatchedItemStore();
393 $store->duplicateAllAssociatedEntries( $this->oldTitle, $this->newTitle );
397 'TitleMoveCompleting',
398 [ $this->oldTitle, $this->newTitle,
399 $user, $pageid, $redirid, $reason, $nullRevision ]
402 $dbw->endAtomic( __METHOD__ );
413 // Keep each single hook handler atomic
414 DeferredUpdates::addUpdate(
415 new AtomicSectionUpdate(
418 // Hold onto $user to avoid HHVM bug where it no longer
419 // becomes a reference (T118683)
420 function () use ( $params, &$user ) {
421 Hooks::run( 'TitleMoveComplete', $params );
426 return Status::newGood();
430 * Move page to a title which is either a redirect to the
431 * source page or nonexistent
433 * @todo This was basically directly moved from Title, it should be split into
435 * @param User $user the User doing the move
436 * @param Title $nt The page to move to, which should be a redirect or non-existent
437 * @param string $reason The reason for the move
438 * @param bool $createRedirect Whether to leave a redirect at the old title. Does not check
439 * if the user has the suppressredirect right
440 * @param string[] $changeTags Change tags to apply to the entry in the move log
441 * @return Revision the revision created by the move
442 * @throws MWException
444 private function moveToInternal( User $user, &$nt, $reason = '', $createRedirect = true,
445 array $changeTags = []
447 if ( $nt->exists() ) {
448 $moveOverRedirect = true;
449 $logType = 'move_redir';
451 $moveOverRedirect = false;
455 if ( $moveOverRedirect ) {
456 $overwriteMessage = wfMessage(
457 'delete_and_move_reason',
458 $this->oldTitle->getPrefixedText()
459 )->inContentLanguage()->text();
460 $newpage = WikiPage::factory( $nt );
462 $status = $newpage->doDeleteArticleReal(
464 /* $suppress */ false,
473 if ( !$status->isGood() ) {
474 throw new MWException( 'Failed to delete page-move revision: ' . $status );
477 $nt->resetArticleID( false );
480 if ( $createRedirect ) {
481 if ( $this->oldTitle->getNamespace() == NS_CATEGORY
482 && !wfMessage( 'category-move-redirect-override' )->inContentLanguage()->isDisabled()
484 $redirectContent = new WikitextContent(
485 wfMessage( 'category-move-redirect-override' )
486 ->params( $nt->getPrefixedText() )->inContentLanguage()->plain() );
488 $contentHandler = ContentHandler::getForTitle( $this->oldTitle );
489 $redirectContent = $contentHandler->makeRedirectContent( $nt,
490 wfMessage( 'move-redirect-text' )->inContentLanguage()->plain() );
493 // NOTE: If this page's content model does not support redirects, $redirectContent will be null.
495 $redirectContent = null;
498 // Figure out whether the content model is no longer the default
499 $oldDefault = ContentHandler::getDefaultModelFor( $this->oldTitle );
500 $contentModel = $this->oldTitle->getContentModel();
501 $newDefault = ContentHandler::getDefaultModelFor( $nt );
502 $defaultContentModelChanging = ( $oldDefault !== $newDefault
503 && $oldDefault === $contentModel );
505 // T59084: log_page should be the ID of the *moved* page
506 $oldid = $this->oldTitle->getArticleID();
507 $logTitle = clone $this->oldTitle;
509 $logEntry = new ManualLogEntry( 'move', $logType );
510 $logEntry->setPerformer( $user );
511 $logEntry->setTarget( $logTitle );
512 $logEntry->setComment( $reason );
513 $logEntry->setParameters( [
514 '4::target' => $nt->getPrefixedText(),
515 '5::noredir' => $redirectContent ? '0' : '1',
518 $formatter = LogFormatter::newFromEntry( $logEntry );
519 $formatter->setContext( RequestContext::newExtraneousContext( $this->oldTitle ) );
520 $comment = $formatter->getPlainActionText();
522 $comment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() . $reason;
525 $dbw = wfGetDB( DB_MASTER );
527 $oldpage = WikiPage::factory( $this->oldTitle );
528 $oldcountable = $oldpage->isCountable();
530 $newpage = WikiPage::factory( $nt );
532 # Save a null revision in the page's history notifying of the move
533 $nullRevision = Revision::newNullRevision( $dbw, $oldid, $comment, true, $user );
534 if ( !is_object( $nullRevision ) ) {
535 throw new MWException( 'No valid null revision produced in ' . __METHOD__ );
538 $nullRevId = $nullRevision->insertOn( $dbw );
539 $logEntry->setAssociatedRevId( $nullRevId );
541 # Change the name of the target page:
542 $dbw->update( 'page',
544 'page_namespace' => $nt->getNamespace(),
545 'page_title' => $nt->getDBkey(),
547 /* WHERE */ [ 'page_id' => $oldid ],
551 if ( !$redirectContent ) {
552 // Clean up the old title *before* reset article id - T47348
553 WikiPage::onArticleDelete( $this->oldTitle );
556 $this->oldTitle->resetArticleID( 0 ); // 0 == non existing
557 $nt->resetArticleID( $oldid );
558 $newpage->loadPageData( WikiPage::READ_LOCKING ); // T48397
560 $newpage->updateRevisionOn( $dbw, $nullRevision );
562 Hooks::run( 'NewRevisionFromEditComplete',
563 [ $newpage, $nullRevision, $nullRevision->getParentId(), $user ] );
565 $newpage->doEditUpdates( $nullRevision, $user,
566 [ 'changed' => false, 'moved' => true, 'oldcountable' => $oldcountable ] );
568 // If the default content model changes, we need to populate rev_content_model
569 if ( $defaultContentModelChanging ) {
572 [ 'rev_content_model' => $contentModel ],
573 [ 'rev_page' => $nt->getArticleID(), 'rev_content_model IS NULL' ],
578 WikiPage::onArticleCreate( $nt );
580 # Recreate the redirect, this time in the other direction.
581 if ( $redirectContent ) {
582 $redirectArticle = WikiPage::factory( $this->oldTitle );
583 $redirectArticle->loadFromRow( false, WikiPage::READ_LOCKING ); // T48397
584 $newid = $redirectArticle->insertOn( $dbw );
585 if ( $newid ) { // sanity
586 $this->oldTitle->resetArticleID( $newid );
587 $redirectRevision = new Revision( [
588 'title' => $this->oldTitle, // for determining the default content model
590 'user_text' => $user->getName(),
591 'user' => $user->getId(),
592 'comment' => $comment,
593 'content' => $redirectContent ] );
594 $redirectRevId = $redirectRevision->insertOn( $dbw );
595 $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
597 Hooks::run( 'NewRevisionFromEditComplete',
598 [ $redirectArticle, $redirectRevision, false, $user ] );
600 $redirectArticle->doEditUpdates( $redirectRevision, $user, [ 'created' => true ] );
602 ChangeTags::addTags( $changeTags, null, $redirectRevId, null );
607 $logid = $logEntry->insert();
609 $logEntry->setTags( $changeTags );
610 $logEntry->publish( $logid );
612 return $nullRevision;