Update to MediaWiki 1.24.1

1 files changed, 343 insertions, 0 deletions

diff --git a/includes/MovePage.php b/includes/MovePage.php
new file mode 100644
index 00000000..fdece8d5
--- /dev/null
+++ b/includes/MovePage.php
@@ -0,0 +1,343 @@
+<?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
+ */
+
+/**
+ * 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;
+	}
+
+	/**
+	 * @param User $user
+	 * @param string $reason
+	 * @param bool $createRedirect
+	 * @return Status
+	 */
+	public function move( User $user, $reason, $createRedirect ) {
+		global $wgCategoryCollation;
+
+		// 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 );
+			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->begin( __METHOD__ ); # If $file was a LocalFile, its transaction would have closed our own.
+		$pageid = $this->oldTitle->getArticleID( Title::GAID_FOR_UPDATE );
+		$protected = $this->oldTitle->isProtected();
+
+		// Do the actual move
+		$this->moveToInternal( $user, $this->newTitle, $reason, $createRedirect );
+
+		// 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',
+			array( 'cl_sortkey_prefix', 'cl_to' ),
+			array( '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',
+				array(
+					'cl_sortkey' => Collation::singleton()->getSortKey(
+							$this->newTitle->getCategorySortkey( $prefix ) ),
+					'cl_collation' => $wgCategoryCollation,
+					'cl_type' => $type,
+					'cl_timestamp=cl_timestamp' ),
+				array(
+					'cl_from' => $pageid,
+					'cl_to' => $catTo ),
+				__METHOD__
+			);
+		}
+
+		$redirid = $this->oldTitle->getArticleID();
+
+		if ( $protected ) {
+			# Protect the redirect title as the title used to be...
+			$dbw->insertSelect( 'page_restrictions', 'page_restrictions',
+				array(
+					'pr_page' => $redirid,
+					'pr_type' => 'pr_type',
+					'pr_level' => 'pr_level',
+					'pr_cascade' => 'pr_cascade',
+					'pr_user' => 'pr_user',
+					'pr_expiry' => 'pr_expiry'
+				),
+				array( 'pr_page' => $pageid ),
+				__METHOD__,
+				array( 'IGNORE' )
+			);
+			# Update the protection log
+			$log = new LogPage( 'protect' );
+			$comment = wfMessage(
+				'prot_1movedto2',
+				$this->oldTitle->getPrefixedText(),
+				$this->newTitle->getPrefixedText()
+			)->inContentLanguage()->text();
+			if ( $reason ) {
+				$comment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() . $reason;
+			}
+			// @todo FIXME: $params?
+			$logId = $log->addEntry(
+				'move_prot',
+				$this->newTitle,
+				$comment,
+				array( $this->oldTitle->getPrefixedText() ),
+				$user
+			);
+
+			// reread inserted pr_ids for log relation
+			$insertedPrIds = $dbw->select(
+				'page_restrictions',
+				'pr_id',
+				array( 'pr_page' => $redirid ),
+				__METHOD__
+			);
+			$logRelationsValues = array();
+			foreach ( $insertedPrIds as $prid ) {
+				$logRelationsValues[] = $prid->pr_id;
+			}
+			$log->addRelations( 'pr_id', $logRelationsValues, $logId );
+		}
+
+		// Update *_from_namespace fields as needed
+		if ( $this->oldTitle->getNamespace() != $this->newTitle->getNamespace() ) {
+			$dbw->update( 'pagelinks',
+				array( 'pl_from_namespace' => $this->newTitle->getNamespace() ),
+				array( 'pl_from' => $pageid ),
+				__METHOD__
+			);
+			$dbw->update( 'templatelinks',
+				array( 'tl_from_namespace' => $this->newTitle->getNamespace() ),
+				array( 'tl_from' => $pageid ),
+				__METHOD__
+			);
+			$dbw->update( 'imagelinks',
+				array( 'il_from_namespace' => $this->newTitle->getNamespace() ),
+				array( '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 ) {
+			WatchedItem::duplicateEntries( $this->oldTitle, $this->newTitle );
+		}
+
+		$dbw->commit( __METHOD__ );
+
+		wfRunHooks( 'TitleMoveComplete', array( &$this->oldTitle, &$this->newTitle, &$user, $pageid, $redirid, $reason ) );
+		return Status::newGood();
+
+	}
+
+	/**
+	 * Move page to a title which is either a redirect to the
+	 * source page or nonexistent
+	 *
+	 * @fixme 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 nonexistent
+	 * @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
+	 * @throws MWException
+	 */
+	private function moveToInternal( User $user, &$nt, $reason = '', $createRedirect = true ) {
+		global $wgContLang;
+
+		if ( $nt->exists() ) {
+			$moveOverRedirect = true;
+			$logType = 'move_redir';
+		} else {
+			$moveOverRedirect = false;
+			$logType = 'move';
+		}
+
+		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;
+		}
+
+		// bug 57084: 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( array(
+			'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;
+		}
+		# Truncate for whole multibyte characters.
+		$comment = $wgContLang->truncate( $comment, 255 );
+
+		$dbw = wfGetDB( DB_MASTER );
+
+		$newpage = WikiPage::factory( $nt );
+
+		if ( $moveOverRedirect ) {
+			$newid = $nt->getArticleID();
+			$newcontent = $newpage->getContent();
+
+			# Delete the old redirect. We don't save it to history since
+			# by definition if we've got here it's rather uninteresting.
+			# We have to remove it so that the next step doesn't trigger
+			# a conflict on the unique namespace+title index...
+			$dbw->delete( 'page', array( 'page_id' => $newid ), __METHOD__ );
+
+			$newpage->doDeleteUpdates( $newid, $newcontent );
+		}
+
+		# 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__ );
+		}
+
+		$nullRevision->insertOn( $dbw );
+
+		# Change the name of the target page:
+		$dbw->update( 'page',
+			/* SET */ array(
+				'page_namespace' => $nt->getNamespace(),
+				'page_title' => $nt->getDBkey(),
+			),
+			/* WHERE */ array( 'page_id' => $oldid ),
+			__METHOD__
+		);
+
+		// clean up the old title before reset article id - bug 45348
+		if ( !$redirectContent ) {
+			WikiPage::onArticleDelete( $this->oldTitle );
+		}
+
+		$this->oldTitle->resetArticleID( 0 ); // 0 == non existing
+		$nt->resetArticleID( $oldid );
+		$newpage->loadPageData( WikiPage::READ_LOCKING ); // bug 46397
+
+		$newpage->updateRevisionOn( $dbw, $nullRevision );
+
+		wfRunHooks( 'NewRevisionFromEditComplete',
+			array( $newpage, $nullRevision, $nullRevision->getParentId(), $user ) );
+
+		$newpage->doEditUpdates( $nullRevision, $user, array( 'changed' => false ) );
+
+		if ( !$moveOverRedirect ) {
+			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 ); // bug 46397
+			$newid = $redirectArticle->insertOn( $dbw );
+			if ( $newid ) { // sanity
+				$this->oldTitle->resetArticleID( $newid );
+				$redirectRevision = new Revision( array(
+					'title' => $this->oldTitle, // for determining the default content model
+					'page' => $newid,
+					'user_text' => $user->getName(),
+					'user' => $user->getId(),
+					'comment' => $comment,
+					'content' => $redirectContent ) );
+				$redirectRevision->insertOn( $dbw );
+				$redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
+
+				wfRunHooks( 'NewRevisionFromEditComplete',
+					array( $redirectArticle, $redirectRevision, false, $user ) );
+
+				$redirectArticle->doEditUpdates( $redirectRevision, $user, array( 'created' => true ) );
+			}
+		}
+
+		# Log the move
+		$logid = $logEntry->insert();
+		$logEntry->publish( $logid );
+	}
+
+}
\ No newline at end of file