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
238 public function move( User
$user, $reason, $createRedirect ) {
239 global $wgCategoryCollation;
241 Hooks
::run( 'TitleMove', [ $this->oldTitle
, $this->newTitle
, $user ] );
243 // If it is a file, move it first.
244 // It is done before all other moving stuff is done because it's hard to revert.
245 $dbw = wfGetDB( DB_MASTER
);
246 if ( $this->oldTitle
->getNamespace() == NS_FILE
) {
247 $file = wfLocalFile( $this->oldTitle
);
248 $file->load( File
::READ_LATEST
);
249 if ( $file->exists() ) {
250 $status = $file->move( $this->newTitle
);
251 if ( !$status->isOK() ) {
255 // Clear RepoGroup process cache
256 RepoGroup
::singleton()->clearCache( $this->oldTitle
);
257 RepoGroup
::singleton()->clearCache( $this->newTitle
); # clear false negative cache
260 $dbw->startAtomic( __METHOD__
);
262 Hooks
::run( 'TitleMoveStarting', [ $this->oldTitle
, $this->newTitle
, $user ] );
264 $pageid = $this->oldTitle
->getArticleID( Title
::GAID_FOR_UPDATE
);
265 $protected = $this->oldTitle
->isProtected();
267 // Do the actual move; if this fails, it will throw an MWException(!)
268 $nullRevision = $this->moveToInternal( $user, $this->newTitle
, $reason, $createRedirect );
270 // Refresh the sortkey for this row. Be careful to avoid resetting
271 // cl_timestamp, which may disturb time-based lists on some sites.
272 // @todo This block should be killed, it's duplicating code
273 // from LinksUpdate::getCategoryInsertions() and friends.
274 $prefixes = $dbw->select(
276 [ 'cl_sortkey_prefix', 'cl_to' ],
277 [ 'cl_from' => $pageid ],
280 if ( $this->newTitle
->getNamespace() == NS_CATEGORY
) {
282 } elseif ( $this->newTitle
->getNamespace() == NS_FILE
) {
287 foreach ( $prefixes as $prefixRow ) {
288 $prefix = $prefixRow->cl_sortkey_prefix
;
289 $catTo = $prefixRow->cl_to
;
290 $dbw->update( 'categorylinks',
292 'cl_sortkey' => Collation
::singleton()->getSortKey(
293 $this->newTitle
->getCategorySortkey( $prefix ) ),
294 'cl_collation' => $wgCategoryCollation,
296 'cl_timestamp=cl_timestamp' ],
298 'cl_from' => $pageid,
304 $redirid = $this->oldTitle
->getArticleID();
307 # Protect the redirect title as the title used to be...
311 [ 'pr_page' => $pageid ],
316 foreach ( $res as $row ) {
318 'pr_page' => $redirid,
319 'pr_type' => $row->pr_type
,
320 'pr_level' => $row->pr_level
,
321 'pr_cascade' => $row->pr_cascade
,
322 'pr_user' => $row->pr_user
,
323 'pr_expiry' => $row->pr_expiry
326 $dbw->insert( 'page_restrictions', $rowsInsert, __METHOD__
, [ 'IGNORE' ] );
328 // Build comment for log
329 $comment = wfMessage(
331 $this->oldTitle
->getPrefixedText(),
332 $this->newTitle
->getPrefixedText()
333 )->inContentLanguage()->text();
335 $comment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() . $reason;
338 // reread inserted pr_ids for log relation
339 $insertedPrIds = $dbw->select(
342 [ 'pr_page' => $redirid ],
345 $logRelationsValues = [];
346 foreach ( $insertedPrIds as $prid ) {
347 $logRelationsValues[] = $prid->pr_id
;
350 // Update the protection log
351 $logEntry = new ManualLogEntry( 'protect', 'move_prot' );
352 $logEntry->setTarget( $this->newTitle
);
353 $logEntry->setComment( $comment );
354 $logEntry->setPerformer( $user );
355 $logEntry->setParameters( [
356 '4::oldtitle' => $this->oldTitle
->getPrefixedText(),
358 $logEntry->setRelations( [ 'pr_id' => $logRelationsValues ] );
359 $logId = $logEntry->insert();
360 $logEntry->publish( $logId );
363 // Update *_from_namespace fields as needed
364 if ( $this->oldTitle
->getNamespace() != $this->newTitle
->getNamespace() ) {
365 $dbw->update( 'pagelinks',
366 [ 'pl_from_namespace' => $this->newTitle
->getNamespace() ],
367 [ 'pl_from' => $pageid ],
370 $dbw->update( 'templatelinks',
371 [ 'tl_from_namespace' => $this->newTitle
->getNamespace() ],
372 [ 'tl_from' => $pageid ],
375 $dbw->update( 'imagelinks',
376 [ 'il_from_namespace' => $this->newTitle
->getNamespace() ],
377 [ 'il_from' => $pageid ],
383 $oldtitle = $this->oldTitle
->getDBkey();
384 $newtitle = $this->newTitle
->getDBkey();
385 $oldsnamespace = MWNamespace
::getSubject( $this->oldTitle
->getNamespace() );
386 $newsnamespace = MWNamespace
::getSubject( $this->newTitle
->getNamespace() );
387 if ( $oldsnamespace != $newsnamespace ||
$oldtitle != $newtitle ) {
388 $store = MediaWikiServices
::getInstance()->getWatchedItemStore();
389 $store->duplicateAllAssociatedEntries( $this->oldTitle
, $this->newTitle
);
393 'TitleMoveCompleting',
394 [ $this->oldTitle
, $this->newTitle
,
395 $user, $pageid, $redirid, $reason, $nullRevision ]
398 $dbw->endAtomic( __METHOD__
);
409 // Keep each single hook handler atomic
410 DeferredUpdates
::addUpdate(
411 new AtomicSectionUpdate(
414 function () use ( $params ) {
415 Hooks
::run( 'TitleMoveComplete', $params );
420 return Status
::newGood();
424 * Move page to a title which is either a redirect to the
425 * source page or nonexistent
427 * @fixme This was basically directly moved from Title, it should be split into smaller functions
428 * @param User $user the User doing the move
429 * @param Title $nt The page to move to, which should be a redirect or non-existent
430 * @param string $reason The reason for the move
431 * @param bool $createRedirect Whether to leave a redirect at the old title. Does not check
432 * if the user has the suppressredirect right
433 * @return Revision the revision created by the move
434 * @throws MWException
436 private function moveToInternal( User
$user, &$nt, $reason = '', $createRedirect = true ) {
439 if ( $nt->exists() ) {
440 $moveOverRedirect = true;
441 $logType = 'move_redir';
443 $moveOverRedirect = false;
447 if ( $moveOverRedirect ) {
448 $overwriteMessage = wfMessage(
449 'delete_and_move_reason',
450 $this->oldTitle
->getPrefixedText()
452 $newpage = WikiPage
::factory( $nt );
454 $status = $newpage->doDeleteArticleReal(
456 /* $suppress */ false,
463 if ( !$status->isGood() ) {
464 throw new MWException( 'Failed to delete page-move revision: ' . $status );
467 $nt->resetArticleID( false );
470 if ( $createRedirect ) {
471 if ( $this->oldTitle
->getNamespace() == NS_CATEGORY
472 && !wfMessage( 'category-move-redirect-override' )->inContentLanguage()->isDisabled()
474 $redirectContent = new WikitextContent(
475 wfMessage( 'category-move-redirect-override' )
476 ->params( $nt->getPrefixedText() )->inContentLanguage()->plain() );
478 $contentHandler = ContentHandler
::getForTitle( $this->oldTitle
);
479 $redirectContent = $contentHandler->makeRedirectContent( $nt,
480 wfMessage( 'move-redirect-text' )->inContentLanguage()->plain() );
483 // NOTE: If this page's content model does not support redirects, $redirectContent will be null.
485 $redirectContent = null;
488 // Figure out whether the content model is no longer the default
489 $oldDefault = ContentHandler
::getDefaultModelFor( $this->oldTitle
);
490 $contentModel = $this->oldTitle
->getContentModel();
491 $newDefault = ContentHandler
::getDefaultModelFor( $nt );
492 $defaultContentModelChanging = ( $oldDefault !== $newDefault
493 && $oldDefault === $contentModel );
495 // bug 57084: log_page should be the ID of the *moved* page
496 $oldid = $this->oldTitle
->getArticleID();
497 $logTitle = clone $this->oldTitle
;
499 $logEntry = new ManualLogEntry( 'move', $logType );
500 $logEntry->setPerformer( $user );
501 $logEntry->setTarget( $logTitle );
502 $logEntry->setComment( $reason );
503 $logEntry->setParameters( [
504 '4::target' => $nt->getPrefixedText(),
505 '5::noredir' => $redirectContent ?
'0': '1',
508 $formatter = LogFormatter
::newFromEntry( $logEntry );
509 $formatter->setContext( RequestContext
::newExtraneousContext( $this->oldTitle
) );
510 $comment = $formatter->getPlainActionText();
512 $comment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() . $reason;
514 # Truncate for whole multibyte characters.
515 $comment = $wgContLang->truncate( $comment, 255 );
517 $dbw = wfGetDB( DB_MASTER
);
519 $oldpage = WikiPage
::factory( $this->oldTitle
);
520 $oldcountable = $oldpage->isCountable();
522 $newpage = WikiPage
::factory( $nt );
524 # Save a null revision in the page's history notifying of the move
525 $nullRevision = Revision
::newNullRevision( $dbw, $oldid, $comment, true, $user );
526 if ( !is_object( $nullRevision ) ) {
527 throw new MWException( 'No valid null revision produced in ' . __METHOD__
);
530 $nullRevision->insertOn( $dbw );
532 # Change the name of the target page:
533 $dbw->update( 'page',
535 'page_namespace' => $nt->getNamespace(),
536 'page_title' => $nt->getDBkey(),
538 /* WHERE */ [ 'page_id' => $oldid ],
542 if ( !$redirectContent ) {
543 // Clean up the old title *before* reset article id - bug 45348
544 WikiPage
::onArticleDelete( $this->oldTitle
);
547 $this->oldTitle
->resetArticleID( 0 ); // 0 == non existing
548 $nt->resetArticleID( $oldid );
549 $newpage->loadPageData( WikiPage
::READ_LOCKING
); // bug 46397
551 $newpage->updateRevisionOn( $dbw, $nullRevision );
553 Hooks
::run( 'NewRevisionFromEditComplete',
554 [ $newpage, $nullRevision, $nullRevision->getParentId(), $user ] );
556 $newpage->doEditUpdates( $nullRevision, $user,
557 [ 'changed' => false, 'moved' => true, 'oldcountable' => $oldcountable ] );
559 // If the default content model changes, we need to populate rev_content_model
560 if ( $defaultContentModelChanging ) {
563 [ 'rev_content_model' => $contentModel ],
564 [ 'rev_page' => $nt->getArticleID(), 'rev_content_model IS NULL' ],
569 WikiPage
::onArticleCreate( $nt );
571 # Recreate the redirect, this time in the other direction.
572 if ( $redirectContent ) {
573 $redirectArticle = WikiPage
::factory( $this->oldTitle
);
574 $redirectArticle->loadFromRow( false, WikiPage
::READ_LOCKING
); // bug 46397
575 $newid = $redirectArticle->insertOn( $dbw );
576 if ( $newid ) { // sanity
577 $this->oldTitle
->resetArticleID( $newid );
578 $redirectRevision = new Revision( [
579 'title' => $this->oldTitle
, // for determining the default content model
581 'user_text' => $user->getName(),
582 'user' => $user->getId(),
583 'comment' => $comment,
584 'content' => $redirectContent ] );
585 $redirectRevision->insertOn( $dbw );
586 $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
588 Hooks
::run( 'NewRevisionFromEditComplete',
589 [ $redirectArticle, $redirectRevision, false, $user ] );
591 $redirectArticle->doEditUpdates( $redirectRevision, $user, [ 'created' => true ] );
596 $logid = $logEntry->insert();
597 $logEntry->publish( $logid );
599 return $nullRevision;