--- /dev/null
+<?php
+
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+use MediaWiki\MediaWikiServices;
+
+/**
+ * Handles the backend logic of moving a page from one title
+ * to another.
+ *
+ * @since 1.24
+ */
+class MovePage {
+
+ /**
+ * @var Title
+ */
+ protected $oldTitle;
+
+ /**
+ * @var Title
+ */
+ protected $newTitle;
+
+ public function __construct( Title $oldTitle, Title $newTitle ) {
+ $this->oldTitle = $oldTitle;
+ $this->newTitle = $newTitle;
+ }
+
+ public function checkPermissions( User $user, $reason ) {
+ $status = new Status();
+
+ $errors = wfMergeErrorArrays(
+ $this->oldTitle->getUserPermissionsErrors( 'move', $user ),
+ $this->oldTitle->getUserPermissionsErrors( 'edit', $user ),
+ $this->newTitle->getUserPermissionsErrors( 'move-target', $user ),
+ $this->newTitle->getUserPermissionsErrors( 'edit', $user )
+ );
+
+ // Convert into a Status object
+ if ( $errors ) {
+ foreach ( $errors as $error ) {
+ call_user_func_array( [ $status, 'fatal' ], $error );
+ }
+ }
+
+ if ( EditPage::matchSummarySpamRegex( $reason ) !== false ) {
+ // This is kind of lame, won't display nice
+ $status->fatal( 'spamprotectiontext' );
+ }
+
+ $tp = $this->newTitle->getTitleProtection();
+ if ( $tp !== false && !$user->isAllowed( $tp['permission'] ) ) {
+ $status->fatal( 'cantmove-titleprotected' );
+ }
+
+ Hooks::run( 'MovePageCheckPermissions',
+ [ $this->oldTitle, $this->newTitle, $user, $reason, $status ]
+ );
+
+ return $status;
+ }
+
+ /**
+ * Does various sanity checks that the move is
+ * valid. Only things based on the two titles
+ * should be checked here.
+ *
+ * @return Status
+ */
+ public function isValidMove() {
+ global $wgContentHandlerUseDB;
+ $status = new Status();
+
+ if ( $this->oldTitle->equals( $this->newTitle ) ) {
+ $status->fatal( 'selfmove' );
+ }
+ if ( !$this->oldTitle->isMovable() ) {
+ $status->fatal( 'immobile-source-namespace', $this->oldTitle->getNsText() );
+ }
+ if ( $this->newTitle->isExternal() ) {
+ $status->fatal( 'immobile-target-namespace-iw' );
+ }
+ if ( !$this->newTitle->isMovable() ) {
+ $status->fatal( 'immobile-target-namespace', $this->newTitle->getNsText() );
+ }
+
+ $oldid = $this->oldTitle->getArticleID();
+
+ if ( strlen( $this->newTitle->getDBkey() ) < 1 ) {
+ $status->fatal( 'articleexists' );
+ }
+ if (
+ ( $this->oldTitle->getDBkey() == '' ) ||
+ ( !$oldid ) ||
+ ( $this->newTitle->getDBkey() == '' )
+ ) {
+ $status->fatal( 'badarticleerror' );
+ }
+
+ # The move is allowed only if (1) the target doesn't exist, or
+ # (2) the target is a redirect to the source, and has no history
+ # (so we can undo bad moves right after they're done).
+ if ( $this->newTitle->getArticleID() && !$this->isValidMoveTarget() ) {
+ $status->fatal( 'articleexists' );
+ }
+
+ // Content model checks
+ if ( !$wgContentHandlerUseDB &&
+ $this->oldTitle->getContentModel() !== $this->newTitle->getContentModel() ) {
+ // can't move a page if that would change the page's content model
+ $status->fatal(
+ 'bad-target-model',
+ ContentHandler::getLocalizedName( $this->oldTitle->getContentModel() ),
+ ContentHandler::getLocalizedName( $this->newTitle->getContentModel() )
+ );
+ } elseif (
+ !ContentHandler::getForTitle( $this->oldTitle )->canBeUsedOn( $this->newTitle )
+ ) {
+ $status->fatal(
+ 'content-not-allowed-here',
+ ContentHandler::getLocalizedName( $this->oldTitle->getContentModel() ),
+ $this->newTitle->getPrefixedText()
+ );
+ }
+
+ // Image-specific checks
+ if ( $this->oldTitle->inNamespace( NS_FILE ) ) {
+ $status->merge( $this->isValidFileMove() );
+ }
+
+ if ( $this->newTitle->inNamespace( NS_FILE ) && !$this->oldTitle->inNamespace( NS_FILE ) ) {
+ $status->fatal( 'nonfile-cannot-move-to-file' );
+ }
+
+ // Hook for extensions to say a title can't be moved for technical reasons
+ Hooks::run( 'MovePageIsValidMove', [ $this->oldTitle, $this->newTitle, $status ] );
+
+ return $status;
+ }
+
+ /**
+ * Sanity checks for when a file is being moved
+ *
+ * @return Status
+ */
+ protected function isValidFileMove() {
+ $status = new Status();
+ $file = wfLocalFile( $this->oldTitle );
+ $file->load( File::READ_LATEST );
+ if ( $file->exists() ) {
+ if ( $this->newTitle->getText() != wfStripIllegalFilenameChars( $this->newTitle->getText() ) ) {
+ $status->fatal( 'imageinvalidfilename' );
+ }
+ if ( !File::checkExtensionCompatibility( $file, $this->newTitle->getDBkey() ) ) {
+ $status->fatal( 'imagetypemismatch' );
+ }
+ }
+
+ if ( !$this->newTitle->inNamespace( NS_FILE ) ) {
+ $status->fatal( 'imagenocrossnamespace' );
+ }
+
+ return $status;
+ }
+
+ /**
+ * Checks if $this can be moved to a given Title
+ * - Selects for update, so don't call it unless you mean business
+ *
+ * @since 1.25
+ * @return bool
+ */
+ protected function isValidMoveTarget() {
+ # Is it an existing file?
+ if ( $this->newTitle->inNamespace( NS_FILE ) ) {
+ $file = wfLocalFile( $this->newTitle );
+ $file->load( File::READ_LATEST );
+ if ( $file->exists() ) {
+ wfDebug( __METHOD__ . ": file exists\n" );
+ return false;
+ }
+ }
+ # Is it a redirect with no history?
+ if ( !$this->newTitle->isSingleRevRedirect() ) {
+ wfDebug( __METHOD__ . ": not a one-rev redirect\n" );
+ return false;
+ }
+ # Get the article text
+ $rev = Revision::newFromTitle( $this->newTitle, false, Revision::READ_LATEST );
+ if ( !is_object( $rev ) ) {
+ return false;
+ }
+ $content = $rev->getContent();
+ # Does the redirect point to the source?
+ # Or is it a broken self-redirect, usually caused by namespace collisions?
+ $redirTitle = $content ? $content->getRedirectTarget() : null;
+
+ if ( $redirTitle ) {
+ if ( $redirTitle->getPrefixedDBkey() !== $this->oldTitle->getPrefixedDBkey() &&
+ $redirTitle->getPrefixedDBkey() !== $this->newTitle->getPrefixedDBkey() ) {
+ wfDebug( __METHOD__ . ": redirect points to other page\n" );
+ return false;
+ } else {
+ return true;
+ }
+ } else {
+ # Fail safe (not a redirect after all. strange.)
+ wfDebug( __METHOD__ . ": failsafe: database says " . $this->newTitle->getPrefixedDBkey() .
+ " is a redirect, but it doesn't contain a valid redirect.\n" );
+ return false;
+ }
+ }
+
+ /**
+ * @param User $user
+ * @param string $reason
+ * @param bool $createRedirect
+ * @param string[] $changeTags Change tags to apply to the entry in the move log. Caller
+ * should perform permission checks with ChangeTags::canAddTagsAccompanyingChange
+ * @return Status
+ */
+ public function move( User $user, $reason, $createRedirect, array $changeTags = [] ) {
+ global $wgCategoryCollation;
+
+ Hooks::run( 'TitleMove', [ $this->oldTitle, $this->newTitle, $user ] );
+
+ // If it is a file, move it first.
+ // It is done before all other moving stuff is done because it's hard to revert.
+ $dbw = wfGetDB( DB_MASTER );
+ if ( $this->oldTitle->getNamespace() == NS_FILE ) {
+ $file = wfLocalFile( $this->oldTitle );
+ $file->load( File::READ_LATEST );
+ if ( $file->exists() ) {
+ $status = $file->move( $this->newTitle );
+ if ( !$status->isOK() ) {
+ return $status;
+ }
+ }
+ // Clear RepoGroup process cache
+ RepoGroup::singleton()->clearCache( $this->oldTitle );
+ RepoGroup::singleton()->clearCache( $this->newTitle ); # clear false negative cache
+ }
+
+ $dbw->startAtomic( __METHOD__ );
+
+ Hooks::run( 'TitleMoveStarting', [ $this->oldTitle, $this->newTitle, $user ] );
+
+ $pageid = $this->oldTitle->getArticleID( Title::GAID_FOR_UPDATE );
+ $protected = $this->oldTitle->isProtected();
+
+ // Do the actual move; if this fails, it will throw an MWException(!)
+ $nullRevision = $this->moveToInternal( $user, $this->newTitle, $reason, $createRedirect,
+ $changeTags );
+
+ // Refresh the sortkey for this row. Be careful to avoid resetting
+ // cl_timestamp, which may disturb time-based lists on some sites.
+ // @todo This block should be killed, it's duplicating code
+ // from LinksUpdate::getCategoryInsertions() and friends.
+ $prefixes = $dbw->select(
+ 'categorylinks',
+ [ 'cl_sortkey_prefix', 'cl_to' ],
+ [ 'cl_from' => $pageid ],
+ __METHOD__
+ );
+ if ( $this->newTitle->getNamespace() == NS_CATEGORY ) {
+ $type = 'subcat';
+ } elseif ( $this->newTitle->getNamespace() == NS_FILE ) {
+ $type = 'file';
+ } else {
+ $type = 'page';
+ }
+ foreach ( $prefixes as $prefixRow ) {
+ $prefix = $prefixRow->cl_sortkey_prefix;
+ $catTo = $prefixRow->cl_to;
+ $dbw->update( 'categorylinks',
+ [
+ 'cl_sortkey' => Collation::singleton()->getSortKey(
+ $this->newTitle->getCategorySortkey( $prefix ) ),
+ 'cl_collation' => $wgCategoryCollation,
+ 'cl_type' => $type,
+ 'cl_timestamp=cl_timestamp' ],
+ [
+ 'cl_from' => $pageid,
+ 'cl_to' => $catTo ],
+ __METHOD__
+ );
+ }
+
+ $redirid = $this->oldTitle->getArticleID();
+
+ if ( $protected ) {
+ # Protect the redirect title as the title used to be...
+ $res = $dbw->select(
+ 'page_restrictions',
+ '*',
+ [ 'pr_page' => $pageid ],
+ __METHOD__,
+ 'FOR UPDATE'
+ );
+ $rowsInsert = [];
+ foreach ( $res as $row ) {
+ $rowsInsert[] = [
+ 'pr_page' => $redirid,
+ 'pr_type' => $row->pr_type,
+ 'pr_level' => $row->pr_level,
+ 'pr_cascade' => $row->pr_cascade,
+ 'pr_user' => $row->pr_user,
+ 'pr_expiry' => $row->pr_expiry
+ ];
+ }
+ $dbw->insert( 'page_restrictions', $rowsInsert, __METHOD__, [ 'IGNORE' ] );
+
+ // Build comment for log
+ $comment = wfMessage(
+ 'prot_1movedto2',
+ $this->oldTitle->getPrefixedText(),
+ $this->newTitle->getPrefixedText()
+ )->inContentLanguage()->text();
+ if ( $reason ) {
+ $comment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() . $reason;
+ }
+
+ // reread inserted pr_ids for log relation
+ $insertedPrIds = $dbw->select(
+ 'page_restrictions',
+ 'pr_id',
+ [ 'pr_page' => $redirid ],
+ __METHOD__
+ );
+ $logRelationsValues = [];
+ foreach ( $insertedPrIds as $prid ) {
+ $logRelationsValues[] = $prid->pr_id;
+ }
+
+ // Update the protection log
+ $logEntry = new ManualLogEntry( 'protect', 'move_prot' );
+ $logEntry->setTarget( $this->newTitle );
+ $logEntry->setComment( $comment );
+ $logEntry->setPerformer( $user );
+ $logEntry->setParameters( [
+ '4::oldtitle' => $this->oldTitle->getPrefixedText(),
+ ] );
+ $logEntry->setRelations( [ 'pr_id' => $logRelationsValues ] );
+ $logEntry->setTags( $changeTags );
+ $logId = $logEntry->insert();
+ $logEntry->publish( $logId );
+ }
+
+ // Update *_from_namespace fields as needed
+ if ( $this->oldTitle->getNamespace() != $this->newTitle->getNamespace() ) {
+ $dbw->update( 'pagelinks',
+ [ 'pl_from_namespace' => $this->newTitle->getNamespace() ],
+ [ 'pl_from' => $pageid ],
+ __METHOD__
+ );
+ $dbw->update( 'templatelinks',
+ [ 'tl_from_namespace' => $this->newTitle->getNamespace() ],
+ [ 'tl_from' => $pageid ],
+ __METHOD__
+ );
+ $dbw->update( 'imagelinks',
+ [ 'il_from_namespace' => $this->newTitle->getNamespace() ],
+ [ 'il_from' => $pageid ],
+ __METHOD__
+ );
+ }
+
+ # Update watchlists
+ $oldtitle = $this->oldTitle->getDBkey();
+ $newtitle = $this->newTitle->getDBkey();
+ $oldsnamespace = MWNamespace::getSubject( $this->oldTitle->getNamespace() );
+ $newsnamespace = MWNamespace::getSubject( $this->newTitle->getNamespace() );
+ if ( $oldsnamespace != $newsnamespace || $oldtitle != $newtitle ) {
+ $store = MediaWikiServices::getInstance()->getWatchedItemStore();
+ $store->duplicateAllAssociatedEntries( $this->oldTitle, $this->newTitle );
+ }
+
+ Hooks::run(
+ 'TitleMoveCompleting',
+ [ $this->oldTitle, $this->newTitle,
+ $user, $pageid, $redirid, $reason, $nullRevision ]
+ );
+
+ $dbw->endAtomic( __METHOD__ );
+
+ $params = [
+ &$this->oldTitle,
+ &$this->newTitle,
+ &$user,
+ $pageid,
+ $redirid,
+ $reason,
+ $nullRevision
+ ];
+ // Keep each single hook handler atomic
+ DeferredUpdates::addUpdate(
+ new AtomicSectionUpdate(
+ $dbw,
+ __METHOD__,
+ // Hold onto $user to avoid HHVM bug where it no longer
+ // becomes a reference (T118683)
+ function () use ( $params, &$user ) {
+ Hooks::run( 'TitleMoveComplete', $params );
+ }
+ )
+ );
+
+ return Status::newGood();
+ }
+
+ /**
+ * Move page to a title which is either a redirect to the
+ * source page or nonexistent
+ *
+ * @todo This was basically directly moved from Title, it should be split into
+ * smaller functions
+ * @param User $user the User doing the move
+ * @param Title $nt The page to move to, which should be a redirect or non-existent
+ * @param string $reason The reason for the move
+ * @param bool $createRedirect Whether to leave a redirect at the old title. Does not check
+ * if the user has the suppressredirect right
+ * @param string[] $changeTags Change tags to apply to the entry in the move log
+ * @return Revision the revision created by the move
+ * @throws MWException
+ */
+ private function moveToInternal( User $user, &$nt, $reason = '', $createRedirect = true,
+ array $changeTags = []
+ ) {
+ if ( $nt->exists() ) {
+ $moveOverRedirect = true;
+ $logType = 'move_redir';
+ } else {
+ $moveOverRedirect = false;
+ $logType = 'move';
+ }
+
+ if ( $moveOverRedirect ) {
+ $overwriteMessage = wfMessage(
+ 'delete_and_move_reason',
+ $this->oldTitle->getPrefixedText()
+ )->inContentLanguage()->text();
+ $newpage = WikiPage::factory( $nt );
+ $errs = [];
+ $status = $newpage->doDeleteArticleReal(
+ $overwriteMessage,
+ /* $suppress */ false,
+ $nt->getArticleID(),
+ /* $commit */ false,
+ $errs,
+ $user,
+ $changeTags,
+ 'delete_redir'
+ );
+
+ if ( !$status->isGood() ) {
+ throw new MWException( 'Failed to delete page-move revision: ' . $status );
+ }
+
+ $nt->resetArticleID( false );
+ }
+
+ if ( $createRedirect ) {
+ if ( $this->oldTitle->getNamespace() == NS_CATEGORY
+ && !wfMessage( 'category-move-redirect-override' )->inContentLanguage()->isDisabled()
+ ) {
+ $redirectContent = new WikitextContent(
+ wfMessage( 'category-move-redirect-override' )
+ ->params( $nt->getPrefixedText() )->inContentLanguage()->plain() );
+ } else {
+ $contentHandler = ContentHandler::getForTitle( $this->oldTitle );
+ $redirectContent = $contentHandler->makeRedirectContent( $nt,
+ wfMessage( 'move-redirect-text' )->inContentLanguage()->plain() );
+ }
+
+ // NOTE: If this page's content model does not support redirects, $redirectContent will be null.
+ } else {
+ $redirectContent = null;
+ }
+
+ // Figure out whether the content model is no longer the default
+ $oldDefault = ContentHandler::getDefaultModelFor( $this->oldTitle );
+ $contentModel = $this->oldTitle->getContentModel();
+ $newDefault = ContentHandler::getDefaultModelFor( $nt );
+ $defaultContentModelChanging = ( $oldDefault !== $newDefault
+ && $oldDefault === $contentModel );
+
+ // T59084: log_page should be the ID of the *moved* page
+ $oldid = $this->oldTitle->getArticleID();
+ $logTitle = clone $this->oldTitle;
+
+ $logEntry = new ManualLogEntry( 'move', $logType );
+ $logEntry->setPerformer( $user );
+ $logEntry->setTarget( $logTitle );
+ $logEntry->setComment( $reason );
+ $logEntry->setParameters( [
+ '4::target' => $nt->getPrefixedText(),
+ '5::noredir' => $redirectContent ? '0' : '1',
+ ] );
+
+ $formatter = LogFormatter::newFromEntry( $logEntry );
+ $formatter->setContext( RequestContext::newExtraneousContext( $this->oldTitle ) );
+ $comment = $formatter->getPlainActionText();
+ if ( $reason ) {
+ $comment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() . $reason;
+ }
+
+ $dbw = wfGetDB( DB_MASTER );
+
+ $oldpage = WikiPage::factory( $this->oldTitle );
+ $oldcountable = $oldpage->isCountable();
+
+ $newpage = WikiPage::factory( $nt );
+
+ # Save a null revision in the page's history notifying of the move
+ $nullRevision = Revision::newNullRevision( $dbw, $oldid, $comment, true, $user );
+ if ( !is_object( $nullRevision ) ) {
+ throw new MWException( 'No valid null revision produced in ' . __METHOD__ );
+ }
+
+ $nullRevId = $nullRevision->insertOn( $dbw );
+ $logEntry->setAssociatedRevId( $nullRevId );
+
+ # Change the name of the target page:
+ $dbw->update( 'page',
+ /* SET */ [
+ 'page_namespace' => $nt->getNamespace(),
+ 'page_title' => $nt->getDBkey(),
+ ],
+ /* WHERE */ [ 'page_id' => $oldid ],
+ __METHOD__
+ );
+
+ if ( !$redirectContent ) {
+ // Clean up the old title *before* reset article id - T47348
+ WikiPage::onArticleDelete( $this->oldTitle );
+ }
+
+ $this->oldTitle->resetArticleID( 0 ); // 0 == non existing
+ $nt->resetArticleID( $oldid );
+ $newpage->loadPageData( WikiPage::READ_LOCKING ); // T48397
+
+ $newpage->updateRevisionOn( $dbw, $nullRevision );
+
+ Hooks::run( 'NewRevisionFromEditComplete',
+ [ $newpage, $nullRevision, $nullRevision->getParentId(), $user ] );
+
+ $newpage->doEditUpdates( $nullRevision, $user,
+ [ 'changed' => false, 'moved' => true, 'oldcountable' => $oldcountable ] );
+
+ // If the default content model changes, we need to populate rev_content_model
+ if ( $defaultContentModelChanging ) {
+ $dbw->update(
+ 'revision',
+ [ 'rev_content_model' => $contentModel ],
+ [ 'rev_page' => $nt->getArticleID(), 'rev_content_model IS NULL' ],
+ __METHOD__
+ );
+ }
+
+ WikiPage::onArticleCreate( $nt );
+
+ # Recreate the redirect, this time in the other direction.
+ if ( $redirectContent ) {
+ $redirectArticle = WikiPage::factory( $this->oldTitle );
+ $redirectArticle->loadFromRow( false, WikiPage::READ_LOCKING ); // T48397
+ $newid = $redirectArticle->insertOn( $dbw );
+ if ( $newid ) { // sanity
+ $this->oldTitle->resetArticleID( $newid );
+ $redirectRevision = new Revision( [
+ 'title' => $this->oldTitle, // for determining the default content model
+ 'page' => $newid,
+ 'user_text' => $user->getName(),
+ 'user' => $user->getId(),
+ 'comment' => $comment,
+ 'content' => $redirectContent ] );
+ $redirectRevId = $redirectRevision->insertOn( $dbw );
+ $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
+
+ Hooks::run( 'NewRevisionFromEditComplete',
+ [ $redirectArticle, $redirectRevision, false, $user ] );
+
+ $redirectArticle->doEditUpdates( $redirectRevision, $user, [ 'created' => true ] );
+
+ ChangeTags::addTags( $changeTags, null, $redirectRevId, null );
+ }
+ }
+
+ # Log the move
+ $logid = $logEntry->insert();
+
+ $logEntry->setTags( $changeTags );
+ $logEntry->publish( $logid );
+
+ return $nullRevision;
+ }
+}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff