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Diffstat (limited to 'includes/WikiPage.php')
| -rw-r--r-- | includes/WikiPage.php | 3621 |
1 files changed, 0 insertions, 3621 deletions
diff --git a/includes/WikiPage.php b/includes/WikiPage.php deleted file mode 100644 index 099cb897..00000000 --- a/includes/WikiPage.php +++ /dev/null @@ -1,3621 +0,0 @@ -<?php -/** - * Base representation for a MediaWiki page. - * - * 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 - */ - -/** - * Abstract class for type hinting (accepts WikiPage, Article, ImagePage, CategoryPage) - */ -interface Page { -} - -/** - * Class representing a MediaWiki article and history. - * - * Some fields are public only for backwards-compatibility. Use accessors. - * In the past, this class was part of Article.php and everything was public. - * - * @internal documentation reviewed 15 Mar 2010 - */ -class WikiPage implements Page, IDBAccessObject { - // Constants for $mDataLoadedFrom and related - - /** - * @var Title - */ - public $mTitle = null; - - /**@{{ - * @protected - */ - public $mDataLoaded = false; // !< Boolean - public $mIsRedirect = false; // !< Boolean - public $mLatest = false; // !< Integer (false means "not loaded") - /**@}}*/ - - /** @var stdclass Map of cache fields (text, parser output, ect) for a proposed/new edit */ - public $mPreparedEdit = false; - - /** - * @var int - */ - protected $mId = null; - - /** - * @var int; one of the READ_* constants - */ - protected $mDataLoadedFrom = self::READ_NONE; - - /** - * @var Title - */ - protected $mRedirectTarget = null; - - /** - * @var Revision - */ - protected $mLastRevision = null; - - /** - * @var string; timestamp of the current revision or empty string if not loaded - */ - protected $mTimestamp = ''; - - /** - * @var string - */ - protected $mTouched = '19700101000000'; - - /** - * @var int|null - */ - protected $mCounter = null; - - /** - * Constructor and clear the article - * @param $title Title Reference to a Title object. - */ - public function __construct( Title $title ) { - $this->mTitle = $title; - } - - /** - * Create a WikiPage object of the appropriate class for the given title. - * - * @param $title Title - * @throws MWException - * @return WikiPage object of the appropriate type - */ - public static function factory( Title $title ) { - $ns = $title->getNamespace(); - - if ( $ns == NS_MEDIA ) { - throw new MWException( "NS_MEDIA is a virtual namespace; use NS_FILE." ); - } elseif ( $ns < 0 ) { - throw new MWException( "Invalid or virtual namespace $ns given." ); - } - - switch ( $ns ) { - case NS_FILE: - $page = new WikiFilePage( $title ); - break; - case NS_CATEGORY: - $page = new WikiCategoryPage( $title ); - break; - default: - $page = new WikiPage( $title ); - } - - return $page; - } - - /** - * Constructor from a page id - * - * @param int $id article ID to load - * @param string|int $from one of the following values: - * - "fromdb" or WikiPage::READ_NORMAL to select from a slave database - * - "fromdbmaster" or WikiPage::READ_LATEST to select from the master database - * - * @return WikiPage|null - */ - public static function newFromID( $id, $from = 'fromdb' ) { - $from = self::convertSelectType( $from ); - $db = wfGetDB( $from === self::READ_LATEST ? DB_MASTER : DB_SLAVE ); - $row = $db->selectRow( 'page', self::selectFields(), array( 'page_id' => $id ), __METHOD__ ); - if ( !$row ) { - return null; - } - return self::newFromRow( $row, $from ); - } - - /** - * Constructor from a database row - * - * @since 1.20 - * @param $row object: database row containing at least fields returned - * by selectFields(). - * @param string|int $from source of $data: - * - "fromdb" or WikiPage::READ_NORMAL: from a slave DB - * - "fromdbmaster" or WikiPage::READ_LATEST: from the master DB - * - "forupdate" or WikiPage::READ_LOCKING: from the master DB using SELECT FOR UPDATE - * @return WikiPage - */ - public static function newFromRow( $row, $from = 'fromdb' ) { - $page = self::factory( Title::newFromRow( $row ) ); - $page->loadFromRow( $row, $from ); - return $page; - } - - /** - * Convert 'fromdb', 'fromdbmaster' and 'forupdate' to READ_* constants. - * - * @param $type object|string|int - * @return mixed - */ - private static function convertSelectType( $type ) { - switch ( $type ) { - case 'fromdb': - return self::READ_NORMAL; - case 'fromdbmaster': - return self::READ_LATEST; - case 'forupdate': - return self::READ_LOCKING; - default: - // It may already be an integer or whatever else - return $type; - } - } - - /** - * Returns overrides for action handlers. - * Classes listed here will be used instead of the default one when - * (and only when) $wgActions[$action] === true. This allows subclasses - * to override the default behavior. - * - * @todo Move this UI stuff somewhere else - * - * @return Array - */ - public function getActionOverrides() { - $content_handler = $this->getContentHandler(); - return $content_handler->getActionOverrides(); - } - - /** - * Returns the ContentHandler instance to be used to deal with the content of this WikiPage. - * - * Shorthand for ContentHandler::getForModelID( $this->getContentModel() ); - * - * @return ContentHandler - * - * @since 1.21 - */ - public function getContentHandler() { - return ContentHandler::getForModelID( $this->getContentModel() ); - } - - /** - * Get the title object of the article - * @return Title object of this page - */ - public function getTitle() { - return $this->mTitle; - } - - /** - * Clear the object - * @return void - */ - public function clear() { - $this->mDataLoaded = false; - $this->mDataLoadedFrom = self::READ_NONE; - - $this->clearCacheFields(); - } - - /** - * Clear the object cache fields - * @return void - */ - protected function clearCacheFields() { - $this->mId = null; - $this->mCounter = null; - $this->mRedirectTarget = null; // Title object if set - $this->mLastRevision = null; // Latest revision - $this->mTouched = '19700101000000'; - $this->mTimestamp = ''; - $this->mIsRedirect = false; - $this->mLatest = false; - // Bug 57026: do not clear mPreparedEdit since prepareTextForEdit() already checks - // the requested rev ID and immutable content against the cached one. - // Clearing it can cause extra parses on edit for no reason. - } - - /** - * Clear the mPreparedEdit cache field, as may be needed by mutable content types - * @return void - * @since 1.23 - */ - public function clearPreparedEdit() { - $this->mPreparedEdit = false; - } - - /** - * Return the list of revision fields that should be selected to create - * a new page. - * - * @return array - */ - public static function selectFields() { - global $wgContentHandlerUseDB; - - $fields = array( - 'page_id', - 'page_namespace', - 'page_title', - 'page_restrictions', - 'page_counter', - 'page_is_redirect', - 'page_is_new', - 'page_random', - 'page_touched', - 'page_latest', - 'page_len', - ); - - if ( $wgContentHandlerUseDB ) { - $fields[] = 'page_content_model'; - } - - return $fields; - } - - /** - * Fetch a page record with the given conditions - * @param $dbr DatabaseBase object - * @param $conditions Array - * @param $options Array - * @return mixed Database result resource, or false on failure - */ - protected function pageData( $dbr, $conditions, $options = array() ) { - $fields = self::selectFields(); - - wfRunHooks( 'ArticlePageDataBefore', array( &$this, &$fields ) ); - - $row = $dbr->selectRow( 'page', $fields, $conditions, __METHOD__, $options ); - - wfRunHooks( 'ArticlePageDataAfter', array( &$this, &$row ) ); - - return $row; - } - - /** - * Fetch a page record matching the Title object's namespace and title - * using a sanitized title string - * - * @param $dbr DatabaseBase object - * @param $title Title object - * @param $options Array - * @return mixed Database result resource, or false on failure - */ - public function pageDataFromTitle( $dbr, $title, $options = array() ) { - return $this->pageData( $dbr, array( - 'page_namespace' => $title->getNamespace(), - 'page_title' => $title->getDBkey() ), $options ); - } - - /** - * Fetch a page record matching the requested ID - * - * @param $dbr DatabaseBase - * @param $id Integer - * @param $options Array - * @return mixed Database result resource, or false on failure - */ - public function pageDataFromId( $dbr, $id, $options = array() ) { - return $this->pageData( $dbr, array( 'page_id' => $id ), $options ); - } - - /** - * Set the general counter, title etc data loaded from - * some source. - * - * @param $from object|string|int One of the following: - * - A DB query result object - * - "fromdb" or WikiPage::READ_NORMAL to get from a slave DB - * - "fromdbmaster" or WikiPage::READ_LATEST to get from the master DB - * - "forupdate" or WikiPage::READ_LOCKING to get from the master DB using SELECT FOR UPDATE - * - * @return void - */ - public function loadPageData( $from = 'fromdb' ) { - $from = self::convertSelectType( $from ); - if ( is_int( $from ) && $from <= $this->mDataLoadedFrom ) { - // We already have the data from the correct location, no need to load it twice. - return; - } - - if ( $from === self::READ_LOCKING ) { - $data = $this->pageDataFromTitle( wfGetDB( DB_MASTER ), $this->mTitle, array( 'FOR UPDATE' ) ); - } elseif ( $from === self::READ_LATEST ) { - $data = $this->pageDataFromTitle( wfGetDB( DB_MASTER ), $this->mTitle ); - } elseif ( $from === self::READ_NORMAL ) { - $data = $this->pageDataFromTitle( wfGetDB( DB_SLAVE ), $this->mTitle ); - // Use a "last rev inserted" timestamp key to diminish the issue of slave lag. - // Note that DB also stores the master position in the session and checks it. - $touched = $this->getCachedLastEditTime(); - if ( $touched ) { // key set - if ( !$data || $touched > wfTimestamp( TS_MW, $data->page_touched ) ) { - $from = self::READ_LATEST; - $data = $this->pageDataFromTitle( wfGetDB( DB_MASTER ), $this->mTitle ); - } - } - } else { - // No idea from where the caller got this data, assume slave database. - $data = $from; - $from = self::READ_NORMAL; - } - - $this->loadFromRow( $data, $from ); - } - - /** - * Load the object from a database row - * - * @since 1.20 - * @param $data object: database row containing at least fields returned - * by selectFields() - * @param string|int $from One of the following: - * - "fromdb" or WikiPage::READ_NORMAL if the data comes from a slave DB - * - "fromdbmaster" or WikiPage::READ_LATEST if the data comes from the master DB - * - "forupdate" or WikiPage::READ_LOCKING if the data comes from from - * the master DB using SELECT FOR UPDATE - */ - public function loadFromRow( $data, $from ) { - $lc = LinkCache::singleton(); - $lc->clearLink( $this->mTitle ); - - if ( $data ) { - $lc->addGoodLinkObjFromRow( $this->mTitle, $data ); - - $this->mTitle->loadFromRow( $data ); - - // Old-fashioned restrictions - $this->mTitle->loadRestrictions( $data->page_restrictions ); - - $this->mId = intval( $data->page_id ); - $this->mCounter = intval( $data->page_counter ); - $this->mTouched = wfTimestamp( TS_MW, $data->page_touched ); - $this->mIsRedirect = intval( $data->page_is_redirect ); - $this->mLatest = intval( $data->page_latest ); - // Bug 37225: $latest may no longer match the cached latest Revision object. - // Double-check the ID of any cached latest Revision object for consistency. - if ( $this->mLastRevision && $this->mLastRevision->getId() != $this->mLatest ) { - $this->mLastRevision = null; - $this->mTimestamp = ''; - } - } else { - $lc->addBadLinkObj( $this->mTitle ); - - $this->mTitle->loadFromRow( false ); - - $this->clearCacheFields(); - - $this->mId = 0; - } - - $this->mDataLoaded = true; - $this->mDataLoadedFrom = self::convertSelectType( $from ); - } - - /** - * @return int Page ID - */ - public function getId() { - if ( !$this->mDataLoaded ) { - $this->loadPageData(); - } - return $this->mId; - } - - /** - * @return bool Whether or not the page exists in the database - */ - public function exists() { - if ( !$this->mDataLoaded ) { - $this->loadPageData(); - } - return $this->mId > 0; - } - - /** - * Check if this page is something we're going to be showing - * some sort of sensible content for. If we return false, page - * views (plain action=view) will return an HTTP 404 response, - * so spiders and robots can know they're following a bad link. - * - * @return bool - */ - public function hasViewableContent() { - return $this->exists() || $this->mTitle->isAlwaysKnown(); - } - - /** - * @return int The view count for the page - */ - public function getCount() { - if ( !$this->mDataLoaded ) { - $this->loadPageData(); - } - - return $this->mCounter; - } - - /** - * Tests if the article content represents a redirect - * - * @return bool - */ - public function isRedirect() { - $content = $this->getContent(); - if ( !$content ) { - return false; - } - - return $content->isRedirect(); - } - - /** - * Returns the page's content model id (see the CONTENT_MODEL_XXX constants). - * - * Will use the revisions actual content model if the page exists, - * and the page's default if the page doesn't exist yet. - * - * @return String - * - * @since 1.21 - */ - public function getContentModel() { - if ( $this->exists() ) { - // look at the revision's actual content model - $rev = $this->getRevision(); - - if ( $rev !== null ) { - return $rev->getContentModel(); - } else { - $title = $this->mTitle->getPrefixedDBkey(); - wfWarn( "Page $title exists but has no (visible) revisions!" ); - } - } - - // use the default model for this page - return $this->mTitle->getContentModel(); - } - - /** - * Loads page_touched and returns a value indicating if it should be used - * @return boolean true if not a redirect - */ - public function checkTouched() { - if ( !$this->mDataLoaded ) { - $this->loadPageData(); - } - return !$this->mIsRedirect; - } - - /** - * Get the page_touched field - * @return string containing GMT timestamp - */ - public function getTouched() { - if ( !$this->mDataLoaded ) { - $this->loadPageData(); - } - return $this->mTouched; - } - - /** - * Get the page_latest field - * @return integer rev_id of current revision - */ - public function getLatest() { - if ( !$this->mDataLoaded ) { - $this->loadPageData(); - } - return (int)$this->mLatest; - } - - /** - * Get the Revision object of the oldest revision - * @return Revision|null - */ - public function getOldestRevision() { - wfProfileIn( __METHOD__ ); - - // Try using the slave database first, then try the master - $continue = 2; - $db = wfGetDB( DB_SLAVE ); - $revSelectFields = Revision::selectFields(); - - $row = null; - while ( $continue ) { - $row = $db->selectRow( - array( 'page', 'revision' ), - $revSelectFields, - array( - 'page_namespace' => $this->mTitle->getNamespace(), - 'page_title' => $this->mTitle->getDBkey(), - 'rev_page = page_id' - ), - __METHOD__, - array( - 'ORDER BY' => 'rev_timestamp ASC' - ) - ); - - if ( $row ) { - $continue = 0; - } else { - $db = wfGetDB( DB_MASTER ); - $continue--; - } - } - - wfProfileOut( __METHOD__ ); - return $row ? Revision::newFromRow( $row ) : null; - } - - /** - * Loads everything except the text - * This isn't necessary for all uses, so it's only done if needed. - */ - protected function loadLastEdit() { - if ( $this->mLastRevision !== null ) { - return; // already loaded - } - - $latest = $this->getLatest(); - if ( !$latest ) { - return; // page doesn't exist or is missing page_latest info - } - - // Bug 37225: if session S1 loads the page row FOR UPDATE, the result always includes the - // latest changes committed. This is true even within REPEATABLE-READ transactions, where - // S1 normally only sees changes committed before the first S1 SELECT. Thus we need S1 to - // also gets the revision row FOR UPDATE; otherwise, it may not find it since a page row - // UPDATE and revision row INSERT by S2 may have happened after the first S1 SELECT. - // http://dev.mysql.com/doc/refman/5.0/en/set-transaction.html#isolevel_repeatable-read. - $flags = ( $this->mDataLoadedFrom == self::READ_LOCKING ) ? Revision::READ_LOCKING : 0; - $revision = Revision::newFromPageId( $this->getId(), $latest, $flags ); - if ( $revision ) { // sanity - $this->setLastEdit( $revision ); - } - } - - /** - * Set the latest revision - */ - protected function setLastEdit( Revision $revision ) { - $this->mLastRevision = $revision; - $this->mTimestamp = $revision->getTimestamp(); - } - - /** - * Get the latest revision - * @return Revision|null - */ - public function getRevision() { - $this->loadLastEdit(); - if ( $this->mLastRevision ) { - return $this->mLastRevision; - } - return null; - } - - /** - * Get the content of the current revision. No side-effects... - * - * @param $audience Integer: one of: - * Revision::FOR_PUBLIC to be displayed to all users - * Revision::FOR_THIS_USER to be displayed to $wgUser - * Revision::RAW get the text regardless of permissions - * @param $user User object to check for, only if FOR_THIS_USER is passed - * to the $audience parameter - * @return Content|null The content of the current revision - * - * @since 1.21 - */ - public function getContent( $audience = Revision::FOR_PUBLIC, User $user = null ) { - $this->loadLastEdit(); - if ( $this->mLastRevision ) { - return $this->mLastRevision->getContent( $audience, $user ); - } - return null; - } - - /** - * Get the text of the current revision. No side-effects... - * - * @param $audience Integer: one of: - * Revision::FOR_PUBLIC to be displayed to all users - * Revision::FOR_THIS_USER to be displayed to the given user - * Revision::RAW get the text regardless of permissions - * @param $user User object to check for, only if FOR_THIS_USER is passed - * to the $audience parameter - * @return String|false The text of the current revision - * @deprecated as of 1.21, getContent() should be used instead. - */ - public function getText( $audience = Revision::FOR_PUBLIC, User $user = null ) { // @todo deprecated, replace usage! - ContentHandler::deprecated( __METHOD__, '1.21' ); - - $this->loadLastEdit(); - if ( $this->mLastRevision ) { - return $this->mLastRevision->getText( $audience, $user ); - } - return false; - } - - /** - * Get the text of the current revision. No side-effects... - * - * @return String|bool The text of the current revision. False on failure - * @deprecated as of 1.21, getContent() should be used instead. - */ - public function getRawText() { - ContentHandler::deprecated( __METHOD__, '1.21' ); - - return $this->getText( Revision::RAW ); - } - - /** - * @return string MW timestamp of last article revision - */ - public function getTimestamp() { - // Check if the field has been filled by WikiPage::setTimestamp() - if ( !$this->mTimestamp ) { - $this->loadLastEdit(); - } - - return wfTimestamp( TS_MW, $this->mTimestamp ); - } - - /** - * Set the page timestamp (use only to avoid DB queries) - * @param string $ts MW timestamp of last article revision - * @return void - */ - public function setTimestamp( $ts ) { - $this->mTimestamp = wfTimestamp( TS_MW, $ts ); - } - - /** - * @param $audience Integer: one of: - * Revision::FOR_PUBLIC to be displayed to all users - * Revision::FOR_THIS_USER to be displayed to the given user - * Revision::RAW get the text regardless of permissions - * @param $user User object to check for, only if FOR_THIS_USER is passed - * to the $audience parameter - * @return int user ID for the user that made the last article revision - */ - public function getUser( $audience = Revision::FOR_PUBLIC, User $user = null ) { - $this->loadLastEdit(); - if ( $this->mLastRevision ) { - return $this->mLastRevision->getUser( $audience, $user ); - } else { - return -1; - } - } - - /** - * Get the User object of the user who created the page - * @param $audience Integer: one of: - * Revision::FOR_PUBLIC to be displayed to all users - * Revision::FOR_THIS_USER to be displayed to the given user - * Revision::RAW get the text regardless of permissions - * @param $user User object to check for, only if FOR_THIS_USER is passed - * to the $audience parameter - * @return User|null - */ - public function getCreator( $audience = Revision::FOR_PUBLIC, User $user = null ) { - $revision = $this->getOldestRevision(); - if ( $revision ) { - $userName = $revision->getUserText( $audience, $user ); - return User::newFromName( $userName, false ); - } else { - return null; - } - } - - /** - * @param $audience Integer: one of: - * Revision::FOR_PUBLIC to be displayed to all users - * Revision::FOR_THIS_USER to be displayed to the given user - * Revision::RAW get the text regardless of permissions - * @param $user User object to check for, only if FOR_THIS_USER is passed - * to the $audience parameter - * @return string username of the user that made the last article revision - */ - public function getUserText( $audience = Revision::FOR_PUBLIC, User $user = null ) { - $this->loadLastEdit(); - if ( $this->mLastRevision ) { - return $this->mLastRevision->getUserText( $audience, $user ); - } else { - return ''; - } - } - - /** - * @param $audience Integer: one of: - * Revision::FOR_PUBLIC to be displayed to all users - * Revision::FOR_THIS_USER to be displayed to the given user - * Revision::RAW get the text regardless of permissions - * @param $user User object to check for, only if FOR_THIS_USER is passed - * to the $audience parameter - * @return string Comment stored for the last article revision - */ - public function getComment( $audience = Revision::FOR_PUBLIC, User $user = null ) { - $this->loadLastEdit(); - if ( $this->mLastRevision ) { - return $this->mLastRevision->getComment( $audience, $user ); - } else { - return ''; - } - } - - /** - * Returns true if last revision was marked as "minor edit" - * - * @return boolean Minor edit indicator for the last article revision. - */ - public function getMinorEdit() { - $this->loadLastEdit(); - if ( $this->mLastRevision ) { - return $this->mLastRevision->isMinor(); - } else { - return false; - } - } - - /** - * Get the cached timestamp for the last time the page changed. - * This is only used to help handle slave lag by comparing to page_touched. - * @return string MW timestamp - */ - protected function getCachedLastEditTime() { - global $wgMemc; - $key = wfMemcKey( 'page-lastedit', md5( $this->mTitle->getPrefixedDBkey() ) ); - return $wgMemc->get( $key ); - } - - /** - * Set the cached timestamp for the last time the page changed. - * This is only used to help handle slave lag by comparing to page_touched. - * @param $timestamp string - * @return void - */ - public function setCachedLastEditTime( $timestamp ) { - global $wgMemc; - $key = wfMemcKey( 'page-lastedit', md5( $this->mTitle->getPrefixedDBkey() ) ); - $wgMemc->set( $key, wfTimestamp( TS_MW, $timestamp ), 60 * 15 ); - } - - /** - * Determine whether a page would be suitable for being counted as an - * article in the site_stats table based on the title & its content - * - * @param $editInfo Object|bool (false): object returned by prepareTextForEdit(), - * if false, the current database state will be used - * @return Boolean - */ - public function isCountable( $editInfo = false ) { - global $wgArticleCountMethod; - - if ( !$this->mTitle->isContentPage() ) { - return false; - } - - if ( $editInfo ) { - $content = $editInfo->pstContent; - } else { - $content = $this->getContent(); - } - - if ( !$content || $content->isRedirect() ) { - return false; - } - - $hasLinks = null; - - if ( $wgArticleCountMethod === 'link' ) { - // nasty special case to avoid re-parsing to detect links - - if ( $editInfo ) { - // ParserOutput::getLinks() is a 2D array of page links, so - // to be really correct we would need to recurse in the array - // but the main array should only have items in it if there are - // links. - $hasLinks = (bool)count( $editInfo->output->getLinks() ); - } else { - $hasLinks = (bool)wfGetDB( DB_SLAVE )->selectField( 'pagelinks', 1, - array( 'pl_from' => $this->getId() ), __METHOD__ ); - } - } - - return $content->isCountable( $hasLinks ); - } - - /** - * If this page is a redirect, get its target - * - * The target will be fetched from the redirect table if possible. - * If this page doesn't have an entry there, call insertRedirect() - * @return Title|mixed object, or null if this page is not a redirect - */ - public function getRedirectTarget() { - if ( !$this->mTitle->isRedirect() ) { - return null; - } - - if ( $this->mRedirectTarget !== null ) { - return $this->mRedirectTarget; - } - - // Query the redirect table - $dbr = wfGetDB( DB_SLAVE ); - $row = $dbr->selectRow( 'redirect', - array( 'rd_namespace', 'rd_title', 'rd_fragment', 'rd_interwiki' ), - array( 'rd_from' => $this->getId() ), - __METHOD__ - ); - - // rd_fragment and rd_interwiki were added later, populate them if empty - if ( $row && !is_null( $row->rd_fragment ) && !is_null( $row->rd_interwiki ) ) { - return $this->mRedirectTarget = Title::makeTitle( - $row->rd_namespace, $row->rd_title, - $row->rd_fragment, $row->rd_interwiki ); - } - - // This page doesn't have an entry in the redirect table - return $this->mRedirectTarget = $this->insertRedirect(); - } - - /** - * Insert an entry for this page into the redirect table. - * - * Don't call this function directly unless you know what you're doing. - * @return Title object or null if not a redirect - */ - public function insertRedirect() { - // recurse through to only get the final target - $content = $this->getContent(); - $retval = $content ? $content->getUltimateRedirectTarget() : null; - if ( !$retval ) { - return null; - } - $this->insertRedirectEntry( $retval ); - return $retval; - } - - /** - * Insert or update the redirect table entry for this page to indicate - * it redirects to $rt . - * @param $rt Title redirect target - */ - public function insertRedirectEntry( $rt ) { - $dbw = wfGetDB( DB_MASTER ); - $dbw->replace( 'redirect', array( 'rd_from' ), - array( - 'rd_from' => $this->getId(), - 'rd_namespace' => $rt->getNamespace(), - 'rd_title' => $rt->getDBkey(), - 'rd_fragment' => $rt->getFragment(), - 'rd_interwiki' => $rt->getInterwiki(), - ), - __METHOD__ - ); - } - - /** - * Get the Title object or URL this page redirects to - * - * @return mixed false, Title of in-wiki target, or string with URL - */ - public function followRedirect() { - return $this->getRedirectURL( $this->getRedirectTarget() ); - } - - /** - * Get the Title object or URL to use for a redirect. We use Title - * objects for same-wiki, non-special redirects and URLs for everything - * else. - * @param $rt Title Redirect target - * @return mixed false, Title object of local target, or string with URL - */ - public function getRedirectURL( $rt ) { - if ( !$rt ) { - return false; - } - - if ( $rt->isExternal() ) { - if ( $rt->isLocal() ) { - // Offsite wikis need an HTTP redirect. - // - // This can be hard to reverse and may produce loops, - // so they may be disabled in the site configuration. - $source = $this->mTitle->getFullURL( 'redirect=no' ); - return $rt->getFullURL( array( 'rdfrom' => $source ) ); - } else { - // External pages pages without "local" bit set are not valid - // redirect targets - return false; - } - } - - if ( $rt->isSpecialPage() ) { - // Gotta handle redirects to special pages differently: - // Fill the HTTP response "Location" header and ignore - // the rest of the page we're on. - // - // Some pages are not valid targets - if ( $rt->isValidRedirectTarget() ) { - return $rt->getFullURL(); - } else { - return false; - } - } - - return $rt; - } - - /** - * Get a list of users who have edited this article, not including the user who made - * the most recent revision, which you can get from $article->getUser() if you want it - * @return UserArrayFromResult - */ - public function getContributors() { - // @todo FIXME: This is expensive; cache this info somewhere. - - $dbr = wfGetDB( DB_SLAVE ); - - if ( $dbr->implicitGroupby() ) { - $realNameField = 'user_real_name'; - } else { - $realNameField = 'MIN(user_real_name) AS user_real_name'; - } - - $tables = array( 'revision', 'user' ); - - $fields = array( - 'user_id' => 'rev_user', - 'user_name' => 'rev_user_text', - $realNameField, - 'timestamp' => 'MAX(rev_timestamp)', - ); - - $conds = array( 'rev_page' => $this->getId() ); - - // The user who made the top revision gets credited as "this page was last edited by - // John, based on contributions by Tom, Dick and Harry", so don't include them twice. - $user = $this->getUser(); - if ( $user ) { - $conds[] = "rev_user != $user"; - } else { - $conds[] = "rev_user_text != {$dbr->addQuotes( $this->getUserText() )}"; - } - - $conds[] = "{$dbr->bitAnd( 'rev_deleted', Revision::DELETED_USER )} = 0"; // username hidden? - - $jconds = array( - 'user' => array( 'LEFT JOIN', 'rev_user = user_id' ), - ); - - $options = array( - 'GROUP BY' => array( 'rev_user', 'rev_user_text' ), - 'ORDER BY' => 'timestamp DESC', - ); - - $res = $dbr->select( $tables, $fields, $conds, __METHOD__, $options, $jconds ); - return new UserArrayFromResult( $res ); - } - - /** - * Get the last N authors - * @param int $num Number of revisions to get - * @param int|string $revLatest the latest rev_id, selected from the master (optional) - * @return array Array of authors, duplicates not removed - */ - public function getLastNAuthors( $num, $revLatest = 0 ) { - wfProfileIn( __METHOD__ ); - // First try the slave - // If that doesn't have the latest revision, try the master - $continue = 2; - $db = wfGetDB( DB_SLAVE ); - - do { - $res = $db->select( array( 'page', 'revision' ), - array( 'rev_id', 'rev_user_text' ), - array( - 'page_namespace' => $this->mTitle->getNamespace(), - 'page_title' => $this->mTitle->getDBkey(), - 'rev_page = page_id' - ), __METHOD__, - array( - 'ORDER BY' => 'rev_timestamp DESC', - 'LIMIT' => $num - ) - ); - - if ( !$res ) { - wfProfileOut( __METHOD__ ); - return array(); - } - - $row = $db->fetchObject( $res ); - - if ( $continue == 2 && $revLatest && $row->rev_id != $revLatest ) { - $db = wfGetDB( DB_MASTER ); - $continue--; - } else { - $continue = 0; - } - } while ( $continue ); - - $authors = array( $row->rev_user_text ); - - foreach ( $res as $row ) { - $authors[] = $row->rev_user_text; - } - - wfProfileOut( __METHOD__ ); - return $authors; - } - - /** - * Should the parser cache be used? - * - * @param $parserOptions ParserOptions to check - * @param $oldid int - * @return boolean - */ - public function isParserCacheUsed( ParserOptions $parserOptions, $oldid ) { - global $wgEnableParserCache; - - return $wgEnableParserCache - && $parserOptions->getStubThreshold() == 0 - && $this->exists() - && ( $oldid === null || $oldid === 0 || $oldid === $this->getLatest() ) - && $this->getContentHandler()->isParserCacheSupported(); - } - - /** - * Get a ParserOutput for the given ParserOptions and revision ID. - * The parser cache will be used if possible. - * - * @since 1.19 - * @param ParserOptions $parserOptions ParserOptions to use for the parse operation - * @param null|int $oldid Revision ID to get the text from, passing null or 0 will - * get the current revision (default value) - * - * @return ParserOutput or false if the revision was not found - */ - public function getParserOutput( ParserOptions $parserOptions, $oldid = null ) { - wfProfileIn( __METHOD__ ); - - $useParserCache = $this->isParserCacheUsed( $parserOptions, $oldid ); - wfDebug( __METHOD__ . ': using parser cache: ' . ( $useParserCache ? 'yes' : 'no' ) . "\n" ); - if ( $parserOptions->getStubThreshold() ) { - wfIncrStats( 'pcache_miss_stub' ); - } - - if ( $useParserCache ) { - $parserOutput = ParserCache::singleton()->get( $this, $parserOptions ); - if ( $parserOutput !== false ) { - wfProfileOut( __METHOD__ ); - return $parserOutput; - } - } - - if ( $oldid === null || $oldid === 0 ) { - $oldid = $this->getLatest(); - } - - $pool = new PoolWorkArticleView( $this, $parserOptions, $oldid, $useParserCache ); - $pool->execute(); - - wfProfileOut( __METHOD__ ); - - return $pool->getParserOutput(); - } - - /** - * Do standard deferred updates after page view - * @param $user User The relevant user - */ - public function doViewUpdates( User $user ) { - global $wgDisableCounters; - if ( wfReadOnly() ) { - return; - } - - // Don't update page view counters on views from bot users (bug 14044) - if ( !$wgDisableCounters && !$user->isAllowed( 'bot' ) && $this->exists() ) { - DeferredUpdates::addUpdate( new ViewCountUpdate( $this->getId() ) ); - DeferredUpdates::addUpdate( new SiteStatsUpdate( 1, 0, 0 ) ); - } - - // Update newtalk / watchlist notification status - $user->clearNotification( $this->mTitle ); - } - - /** - * Perform the actions of a page purging - * @return bool - */ - public function doPurge() { - global $wgUseSquid; - - if ( !wfRunHooks( 'ArticlePurge', array( &$this ) ) ) { - return false; - } - - // Invalidate the cache - $this->mTitle->invalidateCache(); - - if ( $wgUseSquid ) { - // Commit the transaction before the purge is sent - $dbw = wfGetDB( DB_MASTER ); - $dbw->commit( __METHOD__ ); - - // Send purge - $update = SquidUpdate::newSimplePurge( $this->mTitle ); - $update->doUpdate(); - } - - if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) { - // @todo move this logic to MessageCache - - if ( $this->exists() ) { - // NOTE: use transclusion text for messages. - // This is consistent with MessageCache::getMsgFromNamespace() - - $content = $this->getContent(); - $text = $content === null ? null : $content->getWikitextForTransclusion(); - - if ( $text === null ) { - $text = false; - } - } else { - $text = false; - } - - MessageCache::singleton()->replace( $this->mTitle->getDBkey(), $text ); - } - return true; - } - - /** - * Insert a new empty page record for this article. - * This *must* be followed up by creating a revision - * and running $this->updateRevisionOn( ... ); - * or else the record will be left in a funky state. - * Best if all done inside a transaction. - * - * @param $dbw DatabaseBase - * @return int The newly created page_id key, or false if the title already existed - */ - public function insertOn( $dbw ) { - wfProfileIn( __METHOD__ ); - - $page_id = $dbw->nextSequenceValue( 'page_page_id_seq' ); - $dbw->insert( 'page', array( - 'page_id' => $page_id, - 'page_namespace' => $this->mTitle->getNamespace(), - 'page_title' => $this->mTitle->getDBkey(), - 'page_counter' => 0, - 'page_restrictions' => '', - 'page_is_redirect' => 0, // Will set this shortly... - 'page_is_new' => 1, - 'page_random' => wfRandom(), - 'page_touched' => $dbw->timestamp(), - 'page_latest' => 0, // Fill this in shortly... - 'page_len' => 0, // Fill this in shortly... - ), __METHOD__, 'IGNORE' ); - - $affected = $dbw->affectedRows(); - - if ( $affected ) { - $newid = $dbw->insertId(); - $this->mId = $newid; - $this->mTitle->resetArticleID( $newid ); - } - wfProfileOut( __METHOD__ ); - - return $affected ? $newid : false; - } - - /** - * Update the page record to point to a newly saved revision. - * - * @param $dbw DatabaseBase: object - * @param $revision Revision: For ID number, and text used to set - * length and redirect status fields - * @param $lastRevision Integer: if given, will not overwrite the page field - * when different from the currently set value. - * Giving 0 indicates the new page flag should be set - * on. - * @param $lastRevIsRedirect Boolean: if given, will optimize adding and - * removing rows in redirect table. - * @return bool true on success, false on failure - * @private - */ - public function updateRevisionOn( $dbw, $revision, $lastRevision = null, $lastRevIsRedirect = null ) { - global $wgContentHandlerUseDB; - - wfProfileIn( __METHOD__ ); - - $content = $revision->getContent(); - $len = $content ? $content->getSize() : 0; - $rt = $content ? $content->getUltimateRedirectTarget() : null; - - $conditions = array( 'page_id' => $this->getId() ); - - if ( !is_null( $lastRevision ) ) { - // An extra check against threads stepping on each other - $conditions['page_latest'] = $lastRevision; - } - - $now = wfTimestampNow(); - $row = array( /* SET */ - 'page_latest' => $revision->getId(), - 'page_touched' => $dbw->timestamp( $now ), - 'page_is_new' => ( $lastRevision === 0 ) ? 1 : 0, - 'page_is_redirect' => $rt !== null ? 1 : 0, - 'page_len' => $len, - ); - - if ( $wgContentHandlerUseDB ) { - $row['page_content_model'] = $revision->getContentModel(); - } - - $dbw->update( 'page', - $row, - $conditions, - __METHOD__ ); - - $result = $dbw->affectedRows() > 0; - if ( $result ) { - $this->updateRedirectOn( $dbw, $rt, $lastRevIsRedirect ); - $this->setLastEdit( $revision ); - $this->setCachedLastEditTime( $now ); - $this->mLatest = $revision->getId(); - $this->mIsRedirect = (bool)$rt; - // Update the LinkCache. - LinkCache::singleton()->addGoodLinkObj( $this->getId(), $this->mTitle, $len, $this->mIsRedirect, - $this->mLatest, $revision->getContentModel() ); - } - - wfProfileOut( __METHOD__ ); - return $result; - } - - /** - * Add row to the redirect table if this is a redirect, remove otherwise. - * - * @param $dbw DatabaseBase - * @param $redirectTitle Title object pointing to the redirect target, - * or NULL if this is not a redirect - * @param $lastRevIsRedirect null|bool If given, will optimize adding and - * removing rows in redirect table. - * @return bool true on success, false on failure - * @private - */ - public function updateRedirectOn( $dbw, $redirectTitle, $lastRevIsRedirect = null ) { - // Always update redirects (target link might have changed) - // Update/Insert if we don't know if the last revision was a redirect or not - // Delete if changing from redirect to non-redirect - $isRedirect = !is_null( $redirectTitle ); - - if ( !$isRedirect && $lastRevIsRedirect === false ) { - return true; - } - - wfProfileIn( __METHOD__ ); - if ( $isRedirect ) { - $this->insertRedirectEntry( $redirectTitle ); - } else { - // This is not a redirect, remove row from redirect table - $where = array( 'rd_from' => $this->getId() ); - $dbw->delete( 'redirect', $where, __METHOD__ ); - } - - if ( $this->getTitle()->getNamespace() == NS_FILE ) { - RepoGroup::singleton()->getLocalRepo()->invalidateImageRedirect( $this->getTitle() ); - } - wfProfileOut( __METHOD__ ); - - return ( $dbw->affectedRows() != 0 ); - } - - /** - * If the given revision is newer than the currently set page_latest, - * update the page record. Otherwise, do nothing. - * - * @param $dbw DatabaseBase object - * @param $revision Revision object - * @return mixed - */ - public function updateIfNewerOn( $dbw, $revision ) { - wfProfileIn( __METHOD__ ); - - $row = $dbw->selectRow( - array( 'revision', 'page' ), - array( 'rev_id', 'rev_timestamp', 'page_is_redirect' ), - array( - 'page_id' => $this->getId(), - 'page_latest=rev_id' ), - __METHOD__ ); - - if ( $row ) { - if ( wfTimestamp( TS_MW, $row->rev_timestamp ) >= $revision->getTimestamp() ) { - wfProfileOut( __METHOD__ ); - return false; - } - $prev = $row->rev_id; - $lastRevIsRedirect = (bool)$row->page_is_redirect; - } else { - // No or missing previous revision; mark the page as new - $prev = 0; - $lastRevIsRedirect = null; - } - - $ret = $this->updateRevisionOn( $dbw, $revision, $prev, $lastRevIsRedirect ); - - wfProfileOut( __METHOD__ ); - return $ret; - } - - /** - * Get the content that needs to be saved in order to undo all revisions - * between $undo and $undoafter. Revisions must belong to the same page, - * must exist and must not be deleted - * @param $undo Revision - * @param $undoafter Revision Must be an earlier revision than $undo - * @return mixed string on success, false on failure - * @since 1.21 - * Before we had the Content object, this was done in getUndoText - */ - public function getUndoContent( Revision $undo, Revision $undoafter = null ) { - $handler = $undo->getContentHandler(); - return $handler->getUndoContent( $this->getRevision(), $undo, $undoafter ); - } - - /** - * Get the text that needs to be saved in order to undo all revisions - * between $undo and $undoafter. Revisions must belong to the same page, - * must exist and must not be deleted - * @param $undo Revision - * @param $undoafter Revision Must be an earlier revision than $undo - * @return mixed string on success, false on failure - * @deprecated since 1.21: use ContentHandler::getUndoContent() instead. - */ - public function getUndoText( Revision $undo, Revision $undoafter = null ) { - ContentHandler::deprecated( __METHOD__, '1.21' ); - - $this->loadLastEdit(); - - if ( $this->mLastRevision ) { - if ( is_null( $undoafter ) ) { - $undoafter = $undo->getPrevious(); - } - - $handler = $this->getContentHandler(); - $undone = $handler->getUndoContent( $this->mLastRevision, $undo, $undoafter ); - - if ( !$undone ) { - return false; - } else { - return ContentHandler::getContentText( $undone ); - } - } - - return false; - } - - /** - * @param $section null|bool|int or a section number (0, 1, 2, T1, T2...) - * @param string $text new text of the section - * @param string $sectionTitle new section's subject, only if $section is 'new' - * @param string $edittime revision timestamp or null to use the current revision - * @throws MWException - * @return String new complete article text, or null if error - * - * @deprecated since 1.21, use replaceSectionContent() instead - */ - public function replaceSection( $section, $text, $sectionTitle = '', $edittime = null ) { - ContentHandler::deprecated( __METHOD__, '1.21' ); - - if ( strval( $section ) == '' ) { //NOTE: keep condition in sync with condition in replaceSectionContent! - // Whole-page edit; let the whole text through - return $text; - } - - if ( !$this->supportsSections() ) { - throw new MWException( "sections not supported for content model " . $this->getContentHandler()->getModelID() ); - } - - // could even make section title, but that's not required. - $sectionContent = ContentHandler::makeContent( $text, $this->getTitle() ); - - $newContent = $this->replaceSectionContent( $section, $sectionContent, $sectionTitle, $edittime ); - - return ContentHandler::getContentText( $newContent ); - } - - /** - * Returns true if this page's content model supports sections. - * - * @return boolean whether sections are supported. - * - * @todo The skin should check this and not offer section functionality if sections are not supported. - * @todo The EditPage should check this and not offer section functionality if sections are not supported. - */ - public function supportsSections() { - return $this->getContentHandler()->supportsSections(); - } - - /** - * @param $section null|bool|int or a section number (0, 1, 2, T1, T2...) - * @param $sectionContent Content: new content of the section - * @param string $sectionTitle new section's subject, only if $section is 'new' - * @param string $edittime revision timestamp or null to use the current revision - * - * @throws MWException - * @return Content new complete article content, or null if error - * - * @since 1.21 - */ - public function replaceSectionContent( $section, Content $sectionContent, $sectionTitle = '', $edittime = null ) { - wfProfileIn( __METHOD__ ); - - if ( strval( $section ) == '' ) { - // Whole-page edit; let the whole text through - $newContent = $sectionContent; - } else { - if ( !$this->supportsSections() ) { - wfProfileOut( __METHOD__ ); - throw new MWException( "sections not supported for content model " . $this->getContentHandler()->getModelID() ); - } - - // Bug 30711: always use current version when adding a new section - if ( is_null( $edittime ) || $section == 'new' ) { - $oldContent = $this->getContent(); - } else { - $dbw = wfGetDB( DB_MASTER ); - $rev = Revision::loadFromTimestamp( $dbw, $this->mTitle, $edittime ); - - if ( !$rev ) { - wfDebug( "WikiPage::replaceSection asked for bogus section (page: " . - $this->getId() . "; section: $section; edittime: $edittime)\n" ); - wfProfileOut( __METHOD__ ); - return null; - } - - $oldContent = $rev->getContent(); - } - - if ( ! $oldContent ) { - wfDebug( __METHOD__ . ": no page text\n" ); - wfProfileOut( __METHOD__ ); - return null; - } - - // FIXME: $oldContent might be null? - $newContent = $oldContent->replaceSection( $section, $sectionContent, $sectionTitle ); - } - - wfProfileOut( __METHOD__ ); - return $newContent; - } - - /** - * Check flags and add EDIT_NEW or EDIT_UPDATE to them as needed. - * @param $flags Int - * @return Int updated $flags - */ - function checkFlags( $flags ) { - if ( !( $flags & EDIT_NEW ) && !( $flags & EDIT_UPDATE ) ) { - if ( $this->exists() ) { - $flags |= EDIT_UPDATE; - } else { - $flags |= EDIT_NEW; - } - } - - return $flags; - } - - /** - * Change an existing article or create a new article. Updates RC and all necessary caches, - * optionally via the deferred update array. - * - * @param string $text new text - * @param string $summary edit summary - * @param $flags Integer bitfield: - * EDIT_NEW - * Article is known or assumed to be non-existent, create a new one - * EDIT_UPDATE - * Article is known or assumed to be pre-existing, update it - * EDIT_MINOR - * Mark this edit minor, if the user is allowed to do so - * EDIT_SUPPRESS_RC - * Do not log the change in recentchanges - * EDIT_FORCE_BOT - * Mark the edit a "bot" edit regardless of user rights - * EDIT_DEFER_UPDATES - * Defer some of the updates until the end of index.php - * EDIT_AUTOSUMMARY - * Fill in blank summaries with generated text where possible - * - * If neither EDIT_NEW nor EDIT_UPDATE is specified, the status of the article will be detected. - * If EDIT_UPDATE is specified and the article doesn't exist, the function will return an - * edit-gone-missing error. If EDIT_NEW is specified and the article does exist, an - * edit-already-exists error will be returned. These two conditions are also possible with - * auto-detection due to MediaWiki's performance-optimised locking strategy. - * - * @param bool|int $baseRevId int the revision ID this edit was based off, if any - * @param $user User the user doing the edit - * - * @throws MWException - * @return Status object. Possible errors: - * edit-hook-aborted: The ArticleSave hook aborted the edit but didn't set the fatal flag of $status - * edit-gone-missing: In update mode, but the article didn't exist - * edit-conflict: In update mode, the article changed unexpectedly - * edit-no-change: Warning that the text was the same as before - * edit-already-exists: In creation mode, but the article already exists - * - * Extensions may define additional errors. - * - * $return->value will contain an associative array with members as follows: - * new: Boolean indicating if the function attempted to create a new article - * revision: The revision object for the inserted revision, or null - * - * Compatibility note: this function previously returned a boolean value indicating success/failure - * - * @deprecated since 1.21: use doEditContent() instead. - */ - public function doEdit( $text, $summary, $flags = 0, $baseRevId = false, $user = null ) { - ContentHandler::deprecated( __METHOD__, '1.21' ); - - $content = ContentHandler::makeContent( $text, $this->getTitle() ); - - return $this->doEditContent( $content, $summary, $flags, $baseRevId, $user ); - } - - /** - * Change an existing article or create a new article. Updates RC and all necessary caches, - * optionally via the deferred update array. - * - * @param $content Content: new content - * @param string $summary edit summary - * @param $flags Integer bitfield: - * EDIT_NEW - * Article is known or assumed to be non-existent, create a new one - * EDIT_UPDATE - * Article is known or assumed to be pre-existing, update it - * EDIT_MINOR - * Mark this edit minor, if the user is allowed to do so - * EDIT_SUPPRESS_RC - * Do not log the change in recentchanges - * EDIT_FORCE_BOT - * Mark the edit a "bot" edit regardless of user rights - * EDIT_DEFER_UPDATES - * Defer some of the updates until the end of index.php - * EDIT_AUTOSUMMARY - * Fill in blank summaries with generated text where possible - * - * If neither EDIT_NEW nor EDIT_UPDATE is specified, the status of the article will be detected. - * If EDIT_UPDATE is specified and the article doesn't exist, the function will return an - * edit-gone-missing error. If EDIT_NEW is specified and the article does exist, an - * edit-already-exists error will be returned. These two conditions are also possible with - * auto-detection due to MediaWiki's performance-optimised locking strategy. - * - * @param bool|int $baseRevId the revision ID this edit was based off, if any - * @param $user User the user doing the edit - * @param $serialisation_format String: format for storing the content in the database - * - * @throws MWException - * @return Status object. Possible errors: - * edit-hook-aborted: The ArticleSave hook aborted the edit but didn't set the fatal flag of $status - * edit-gone-missing: In update mode, but the article didn't exist - * edit-conflict: In update mode, the article changed unexpectedly - * edit-no-change: Warning that the text was the same as before - * edit-already-exists: In creation mode, but the article already exists - * - * Extensions may define additional errors. - * - * $return->value will contain an associative array with members as follows: - * new: Boolean indicating if the function attempted to create a new article - * revision: The revision object for the inserted revision, or null - * - * @since 1.21 - */ - public function doEditContent( Content $content, $summary, $flags = 0, $baseRevId = false, - User $user = null, $serialisation_format = null ) { - global $wgUser, $wgUseAutomaticEditSummaries, $wgUseRCPatrol, $wgUseNPPatrol; - - // Low-level sanity check - if ( $this->mTitle->getText() === '' ) { - throw new MWException( 'Something is trying to edit an article with an empty title' ); - } - - wfProfileIn( __METHOD__ ); - - if ( !$content->getContentHandler()->canBeUsedOn( $this->getTitle() ) ) { - wfProfileOut( __METHOD__ ); - return Status::newFatal( 'content-not-allowed-here', - ContentHandler::getLocalizedName( $content->getModel() ), - $this->getTitle()->getPrefixedText() ); - } - - $user = is_null( $user ) ? $wgUser : $user; - $status = Status::newGood( array() ); - - // Load the data from the master database if needed. - // The caller may already loaded it from the master or even loaded it using - // SELECT FOR UPDATE, so do not override that using clear(). - $this->loadPageData( 'fromdbmaster' ); - - $flags = $this->checkFlags( $flags ); - - // handle hook - $hook_args = array( &$this, &$user, &$content, &$summary, - $flags & EDIT_MINOR, null, null, &$flags, &$status ); - - if ( !wfRunHooks( 'PageContentSave', $hook_args ) - || !ContentHandler::runLegacyHooks( 'ArticleSave', $hook_args ) ) { - - wfDebug( __METHOD__ . ": ArticleSave or ArticleSaveContent hook aborted save!\n" ); - - if ( $status->isOK() ) { - $status->fatal( 'edit-hook-aborted' ); - } - - wfProfileOut( __METHOD__ ); - return $status; - } - - // Silently ignore EDIT_MINOR if not allowed - $isminor = ( $flags & EDIT_MINOR ) && $user->isAllowed( 'minoredit' ); - $bot = $flags & EDIT_FORCE_BOT; - - $old_content = $this->getContent( Revision::RAW ); // current revision's content - - $oldsize = $old_content ? $old_content->getSize() : 0; - $oldid = $this->getLatest(); - $oldIsRedirect = $this->isRedirect(); - $oldcountable = $this->isCountable(); - - $handler = $content->getContentHandler(); - - // Provide autosummaries if one is not provided and autosummaries are enabled. - if ( $wgUseAutomaticEditSummaries && $flags & EDIT_AUTOSUMMARY && $summary == '' ) { - if ( !$old_content ) { - $old_content = null; - } - $summary = $handler->getAutosummary( $old_content, $content, $flags ); - } - - $editInfo = $this->prepareContentForEdit( $content, null, $user, $serialisation_format ); - $serialized = $editInfo->pst; - - /** - * @var Content $content - */ - $content = $editInfo->pstContent; - $newsize = $content->getSize(); - - $dbw = wfGetDB( DB_MASTER ); - $now = wfTimestampNow(); - $this->mTimestamp = $now; - - if ( $flags & EDIT_UPDATE ) { - // Update article, but only if changed. - $status->value['new'] = false; - - if ( !$oldid ) { - // Article gone missing - wfDebug( __METHOD__ . ": EDIT_UPDATE specified but article doesn't exist\n" ); - $status->fatal( 'edit-gone-missing' ); - - wfProfileOut( __METHOD__ ); - return $status; - } elseif ( !$old_content ) { - // Sanity check for bug 37225 - wfProfileOut( __METHOD__ ); - throw new MWException( "Could not find text for current revision {$oldid}." ); - } - - $revision = new Revision( array( - 'page' => $this->getId(), - 'title' => $this->getTitle(), // for determining the default content model - 'comment' => $summary, - 'minor_edit' => $isminor, - 'text' => $serialized, - 'len' => $newsize, - 'parent_id' => $oldid, - 'user' => $user->getId(), - 'user_text' => $user->getName(), - 'timestamp' => $now, - 'content_model' => $content->getModel(), - 'content_format' => $serialisation_format, - ) ); // XXX: pass content object?! - - $changed = !$content->equals( $old_content ); - - if ( $changed ) { - if ( !$content->isValid() ) { - wfProfileOut( __METHOD__ ); - throw new MWException( "New content failed validity check!" ); - } - - $dbw->begin( __METHOD__ ); - - $prepStatus = $content->prepareSave( $this, $flags, $baseRevId, $user ); - $status->merge( $prepStatus ); - - if ( !$status->isOK() ) { - $dbw->rollback( __METHOD__ ); - - wfProfileOut( __METHOD__ ); - return $status; - } - - $revisionId = $revision->insertOn( $dbw ); - - // Update page - // - // Note that we use $this->mLatest instead of fetching a value from the master DB - // during the course of this function. This makes sure that EditPage can detect - // edit conflicts reliably, either by $ok here, or by $article->getTimestamp() - // before this function is called. A previous function used a separate query, this - // creates a window where concurrent edits can cause an ignored edit conflict. - $ok = $this->updateRevisionOn( $dbw, $revision, $oldid, $oldIsRedirect ); - - if ( !$ok ) { - // Belated edit conflict! Run away!! - $status->fatal( 'edit-conflict' ); - - $dbw->rollback( __METHOD__ ); - - wfProfileOut( __METHOD__ ); - return $status; - } - - wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $revision, $baseRevId, $user ) ); - // Update recentchanges - if ( !( $flags & EDIT_SUPPRESS_RC ) ) { - // Mark as patrolled if the user can do so - $patrolled = $wgUseRCPatrol && !count( - $this->mTitle->getUserPermissionsErrors( 'autopatrol', $user ) ); - // Add RC row to the DB - $rc = RecentChange::notifyEdit( $now, $this->mTitle, $isminor, $user, $summary, - $oldid, $this->getTimestamp(), $bot, '', $oldsize, $newsize, - $revisionId, $patrolled - ); - - // Log auto-patrolled edits - if ( $patrolled ) { - PatrolLog::record( $rc, true, $user ); - } - } - $user->incEditCount(); - $dbw->commit( __METHOD__ ); - } else { - // Bug 32948: revision ID must be set to page {{REVISIONID}} and - // related variables correctly - $revision->setId( $this->getLatest() ); - } - - // Update links tables, site stats, etc. - $this->doEditUpdates( - $revision, - $user, - array( - 'changed' => $changed, - 'oldcountable' => $oldcountable - ) - ); - - if ( !$changed ) { - $status->warning( 'edit-no-change' ); - $revision = null; - // Update page_touched, this is usually implicit in the page update - // Other cache updates are done in onArticleEdit() - $this->mTitle->invalidateCache(); - } - } else { - // Create new article - $status->value['new'] = true; - - $dbw->begin( __METHOD__ ); - - $prepStatus = $content->prepareSave( $this, $flags, $baseRevId, $user ); - $status->merge( $prepStatus ); - - if ( !$status->isOK() ) { - $dbw->rollback( __METHOD__ ); - - wfProfileOut( __METHOD__ ); - return $status; - } - - $status->merge( $prepStatus ); - - // Add the page record; stake our claim on this title! - // This will return false if the article already exists - $newid = $this->insertOn( $dbw ); - - if ( $newid === false ) { - $dbw->rollback( __METHOD__ ); - $status->fatal( 'edit-already-exists' ); - - wfProfileOut( __METHOD__ ); - return $status; - } - - // Save the revision text... - $revision = new Revision( array( - 'page' => $newid, - 'title' => $this->getTitle(), // for determining the default content model - 'comment' => $summary, - 'minor_edit' => $isminor, - 'text' => $serialized, - 'len' => $newsize, - 'user' => $user->getId(), - 'user_text' => $user->getName(), - 'timestamp' => $now, - 'content_model' => $content->getModel(), - 'content_format' => $serialisation_format, - ) ); - $revisionId = $revision->insertOn( $dbw ); - - // Bug 37225: use accessor to get the text as Revision may trim it - $content = $revision->getContent(); // sanity; get normalized version - - if ( $content ) { - $newsize = $content->getSize(); - } - - // Update the page record with revision data - $this->updateRevisionOn( $dbw, $revision, 0 ); - - wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $revision, false, $user ) ); - - // Update recentchanges - if ( !( $flags & EDIT_SUPPRESS_RC ) ) { - // Mark as patrolled if the user can do so - $patrolled = ( $wgUseRCPatrol || $wgUseNPPatrol ) && !count( - $this->mTitle->getUserPermissionsErrors( 'autopatrol', $user ) ); - // Add RC row to the DB - $rc = RecentChange::notifyNew( $now, $this->mTitle, $isminor, $user, $summary, $bot, - '', $newsize, $revisionId, $patrolled ); - - // Log auto-patrolled edits - if ( $patrolled ) { - PatrolLog::record( $rc, true, $user ); - } - } - $user->incEditCount(); - $dbw->commit( __METHOD__ ); - - // Update links, etc. - $this->doEditUpdates( $revision, $user, array( 'created' => true ) ); - - $hook_args = array( &$this, &$user, $content, $summary, - $flags & EDIT_MINOR, null, null, &$flags, $revision ); - - ContentHandler::runLegacyHooks( 'ArticleInsertComplete', $hook_args ); - wfRunHooks( 'PageContentInsertComplete', $hook_args ); - } - - // Do updates right now unless deferral was requested - if ( !( $flags & EDIT_DEFER_UPDATES ) ) { - DeferredUpdates::doUpdates(); - } - - // Return the new revision (or null) to the caller - $status->value['revision'] = $revision; - - $hook_args = array( &$this, &$user, $content, $summary, - $flags & EDIT_MINOR, null, null, &$flags, $revision, &$status, $baseRevId ); - - ContentHandler::runLegacyHooks( 'ArticleSaveComplete', $hook_args ); - wfRunHooks( 'PageContentSaveComplete', $hook_args ); - - // Promote user to any groups they meet the criteria for - $user->addAutopromoteOnceGroups( 'onEdit' ); - - wfProfileOut( __METHOD__ ); - return $status; - } - - /** - * Get parser options suitable for rendering the primary article wikitext - * - * @see ContentHandler::makeParserOptions - * - * @param IContextSource|User|string $context One of the following: - * - IContextSource: Use the User and the Language of the provided - * context - * - User: Use the provided User object and $wgLang for the language, - * so use an IContextSource object if possible. - * - 'canonical': Canonical options (anonymous user with default - * preferences and content language). - * @return ParserOptions - */ - public function makeParserOptions( $context ) { - $options = $this->getContentHandler()->makeParserOptions( $context ); - - if ( $this->getTitle()->isConversionTable() ) { - // @todo ConversionTable should become a separate content model, so we don't need special cases like this one. - $options->disableContentConversion(); - } - - return $options; - } - - /** - * Prepare text which is about to be saved. - * Returns a stdclass with source, pst and output members - * - * @deprecated in 1.21: use prepareContentForEdit instead. - */ - public function prepareTextForEdit( $text, $revid = null, User $user = null ) { - ContentHandler::deprecated( __METHOD__, '1.21' ); - $content = ContentHandler::makeContent( $text, $this->getTitle() ); - return $this->prepareContentForEdit( $content, $revid, $user ); - } - - /** - * Prepare content which is about to be saved. - * Returns a stdclass with source, pst and output members - * - * @param Content $content - * @param int|null $revid - * @param User|null $user - * @param string|null $serialization_format - * - * @return bool|object - * - * @since 1.21 - */ - public function prepareContentForEdit( Content $content, $revid = null, User $user = null, - $serialization_format = null - ) { - global $wgContLang, $wgUser; - $user = is_null( $user ) ? $wgUser : $user; - //XXX: check $user->getId() here??? - - if ( $this->mPreparedEdit - && $this->mPreparedEdit->newContent - && $this->mPreparedEdit->newContent->equals( $content ) - && $this->mPreparedEdit->revid == $revid - && $this->mPreparedEdit->format == $serialization_format - // XXX: also check $user here? - ) { - // Already prepared - return $this->mPreparedEdit; - } - - $popts = ParserOptions::newFromUserAndLang( $user, $wgContLang ); - wfRunHooks( 'ArticlePrepareTextForEdit', array( $this, $popts ) ); - - $edit = (object)array(); - $edit->revid = $revid; - - $edit->pstContent = $content ? $content->preSaveTransform( $this->mTitle, $user, $popts ) : null; - - $edit->format = $serialization_format; - $edit->popts = $this->makeParserOptions( 'canonical' ); - $edit->output = $edit->pstContent ? $edit->pstContent->getParserOutput( $this->mTitle, $revid, $edit->popts ) : null; - - $edit->newContent = $content; - $edit->oldContent = $this->getContent( Revision::RAW ); - - // NOTE: B/C for hooks! don't use these fields! - $edit->newText = $edit->newContent ? ContentHandler::getContentText( $edit->newContent ) : ''; - $edit->oldText = $edit->oldContent ? ContentHandler::getContentText( $edit->oldContent ) : ''; - $edit->pst = $edit->pstContent ? $edit->pstContent->serialize( $serialization_format ) : ''; - - $this->mPreparedEdit = $edit; - return $edit; - } - - /** - * Do standard deferred updates after page edit. - * Update links tables, site stats, search index and message cache. - * Purges pages that include this page if the text was changed here. - * Every 100th edit, prune the recent changes table. - * - * @param $revision Revision object - * @param $user User object that did the revision - * @param array $options of options, following indexes are used: - * - changed: boolean, whether the revision changed the content (default true) - * - created: boolean, whether the revision created the page (default false) - * - oldcountable: boolean or null (default null): - * - boolean: whether the page was counted as an article before that - * revision, only used in changed is true and created is false - * - null: don't change the article count - */ - public function doEditUpdates( Revision $revision, User $user, array $options = array() ) { - global $wgEnableParserCache; - - wfProfileIn( __METHOD__ ); - - $options += array( 'changed' => true, 'created' => false, 'oldcountable' => null ); - $content = $revision->getContent(); - - // Parse the text - // Be careful not to do pre-save transform twice: $text is usually - // already pre-save transformed once. - if ( !$this->mPreparedEdit || $this->mPreparedEdit->output->getFlag( 'vary-revision' ) ) { - wfDebug( __METHOD__ . ": No prepared edit or vary-revision is set...\n" ); - $editInfo = $this->prepareContentForEdit( $content, $revision->getId(), $user ); - } else { - wfDebug( __METHOD__ . ": No vary-revision, using prepared edit...\n" ); - $editInfo = $this->mPreparedEdit; - } - - // Save it to the parser cache - if ( $wgEnableParserCache ) { - $parserCache = ParserCache::singleton(); - $parserCache->save( $editInfo->output, $this, $editInfo->popts ); - } - - // Update the links tables and other secondary data - if ( $content ) { - $recursive = $options['changed']; // bug 50785 - $updates = $content->getSecondaryDataUpdates( - $this->getTitle(), null, $recursive, $editInfo->output ); - DataUpdate::runUpdates( $updates ); - } - - wfRunHooks( 'ArticleEditUpdates', array( &$this, &$editInfo, $options['changed'] ) ); - - if ( wfRunHooks( 'ArticleEditUpdatesDeleteFromRecentchanges', array( &$this ) ) ) { - if ( 0 == mt_rand( 0, 99 ) ) { - // Flush old entries from the `recentchanges` table; we do this on - // random requests so as to avoid an increase in writes for no good reason - RecentChange::purgeExpiredChanges(); - } - } - - if ( !$this->exists() ) { - wfProfileOut( __METHOD__ ); - return; - } - - $id = $this->getId(); - $title = $this->mTitle->getPrefixedDBkey(); - $shortTitle = $this->mTitle->getDBkey(); - - if ( !$options['changed'] ) { - $good = 0; - $total = 0; - } elseif ( $options['created'] ) { - $good = (int)$this->isCountable( $editInfo ); - $total = 1; - } elseif ( $options['oldcountable'] !== null ) { - $good = (int)$this->isCountable( $editInfo ) - (int)$options['oldcountable']; - $total = 0; - } else { - $good = 0; - $total = 0; - } - - DeferredUpdates::addUpdate( new SiteStatsUpdate( 0, 1, $good, $total ) ); - DeferredUpdates::addUpdate( new SearchUpdate( $id, $title, $content ) ); - - // If this is another user's talk page, update newtalk. - // Don't do this if $options['changed'] = false (null-edits) nor if - // it's a minor edit and the user doesn't want notifications for those. - if ( $options['changed'] - && $this->mTitle->getNamespace() == NS_USER_TALK - && $shortTitle != $user->getTitleKey() - && !( $revision->isMinor() && $user->isAllowed( 'nominornewtalk' ) ) - ) { - $recipient = User::newFromName( $shortTitle, false ); - if ( !$recipient ) { - wfDebug( __METHOD__ . ": invalid username\n" ); - } else { - // Allow extensions to prevent user notification when a new message is added to their talk page - if ( wfRunHooks( 'ArticleEditUpdateNewTalk', array( &$this, $recipient ) ) ) { - if ( User::isIP( $shortTitle ) ) { - // An anonymous user - $recipient->setNewtalk( true, $revision ); - } elseif ( $recipient->isLoggedIn() ) { - $recipient->setNewtalk( true, $revision ); - } else { - wfDebug( __METHOD__ . ": don't need to notify a nonexistent user\n" ); - } - } - } - } - - if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) { - // XXX: could skip pseudo-messages like js/css here, based on content model. - $msgtext = $content ? $content->getWikitextForTransclusion() : null; - if ( $msgtext === false || $msgtext === null ) { - $msgtext = ''; - } - - MessageCache::singleton()->replace( $shortTitle, $msgtext ); - } - - if ( $options['created'] ) { - self::onArticleCreate( $this->mTitle ); - } else { - self::onArticleEdit( $this->mTitle ); - } - - wfProfileOut( __METHOD__ ); - } - - /** - * Edit an article without doing all that other stuff - * The article must already exist; link tables etc - * are not updated, caches are not flushed. - * - * @param string $text text submitted - * @param $user User The relevant user - * @param string $comment comment submitted - * @param $minor Boolean: whereas it's a minor modification - * - * @deprecated since 1.21, use doEditContent() instead. - */ - public function doQuickEdit( $text, User $user, $comment = '', $minor = 0 ) { - ContentHandler::deprecated( __METHOD__, "1.21" ); - - $content = ContentHandler::makeContent( $text, $this->getTitle() ); - $this->doQuickEditContent( $content, $user, $comment, $minor ); - } - - /** - * Edit an article without doing all that other stuff - * The article must already exist; link tables etc - * are not updated, caches are not flushed. - * - * @param Content $content Content submitted - * @param User $user The relevant user - * @param string $comment comment submitted - * @param string $serialisation_format Format for storing the content in the database - * @param bool $minor Whereas it's a minor modification - */ - public function doQuickEditContent( Content $content, User $user, $comment = '', $minor = false, - $serialisation_format = null - ) { - wfProfileIn( __METHOD__ ); - - $serialized = $content->serialize( $serialisation_format ); - - $dbw = wfGetDB( DB_MASTER ); - $revision = new Revision( array( - 'title' => $this->getTitle(), // for determining the default content model - 'page' => $this->getId(), - 'text' => $serialized, - 'length' => $content->getSize(), - 'comment' => $comment, - 'minor_edit' => $minor ? 1 : 0, - ) ); // XXX: set the content object? - $revision->insertOn( $dbw ); - $this->updateRevisionOn( $dbw, $revision ); - - wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $revision, false, $user ) ); - - wfProfileOut( __METHOD__ ); - } - - /** - * Update the article's restriction field, and leave a log entry. - * This works for protection both existing and non-existing pages. - * - * @param array $limit set of restriction keys - * @param array $expiry per restriction type expiration - * @param int &$cascade Set to false if cascading protection isn't allowed. - * @param string $reason - * @param User $user The user updating the restrictions - * @return Status - */ - public function doUpdateRestrictions( array $limit, array $expiry, &$cascade, $reason, User $user ) { - global $wgCascadingRestrictionLevels; - - if ( wfReadOnly() ) { - return Status::newFatal( 'readonlytext', wfReadOnlyReason() ); - } - - $restrictionTypes = $this->mTitle->getRestrictionTypes(); - - $id = $this->getId(); - - if ( !$cascade ) { - $cascade = false; - } - - // Take this opportunity to purge out expired restrictions - Title::purgeExpiredRestrictions(); - - // @todo FIXME: Same limitations as described in ProtectionForm.php (line 37); - // we expect a single selection, but the schema allows otherwise. - $isProtected = false; - $protect = false; - $changed = false; - - $dbw = wfGetDB( DB_MASTER ); - - foreach ( $restrictionTypes as $action ) { - if ( !isset( $expiry[$action] ) ) { - $expiry[$action] = $dbw->getInfinity(); - } - if ( !isset( $limit[$action] ) ) { - $limit[$action] = ''; - } elseif ( $limit[$action] != '' ) { - $protect = true; - } - - // Get current restrictions on $action - $current = implode( '', $this->mTitle->getRestrictions( $action ) ); - if ( $current != '' ) { - $isProtected = true; - } - - if ( $limit[$action] != $current ) { - $changed = true; - } elseif ( $limit[$action] != '' ) { - // Only check expiry change if the action is actually being - // protected, since expiry does nothing on an not-protected - // action. - if ( $this->mTitle->getRestrictionExpiry( $action ) != $expiry[$action] ) { - $changed = true; - } - } - } - - if ( !$changed && $protect && $this->mTitle->areRestrictionsCascading() != $cascade ) { - $changed = true; - } - - // If nothing has changed, do nothing - if ( !$changed ) { - return Status::newGood(); - } - - if ( !$protect ) { // No protection at all means unprotection - $revCommentMsg = 'unprotectedarticle'; - $logAction = 'unprotect'; - } elseif ( $isProtected ) { - $revCommentMsg = 'modifiedarticleprotection'; - $logAction = 'modify'; - } else { - $revCommentMsg = 'protectedarticle'; - $logAction = 'protect'; - } - - if ( $id ) { // Protection of existing page - if ( !wfRunHooks( 'ArticleProtect', array( &$this, &$user, $limit, $reason ) ) ) { - return Status::newGood(); - } - - // Only certain restrictions can cascade... - $editrestriction = isset( $limit['edit'] ) ? array( $limit['edit'] ) : $this->mTitle->getRestrictions( 'edit' ); - foreach ( array_keys( $editrestriction, 'sysop' ) as $key ) { - $editrestriction[$key] = 'editprotected'; // backwards compatibility - } - foreach ( array_keys( $editrestriction, 'autoconfirmed' ) as $key ) { - $editrestriction[$key] = 'editsemiprotected'; // backwards compatibility - } - - $cascadingRestrictionLevels = $wgCascadingRestrictionLevels; - foreach ( array_keys( $cascadingRestrictionLevels, 'sysop' ) as $key ) { - $cascadingRestrictionLevels[$key] = 'editprotected'; // backwards compatibility - } - foreach ( array_keys( $cascadingRestrictionLevels, 'autoconfirmed' ) as $key ) { - $cascadingRestrictionLevels[$key] = 'editsemiprotected'; // backwards compatibility - } - - // The schema allows multiple restrictions - if ( !array_intersect( $editrestriction, $cascadingRestrictionLevels ) ) { - $cascade = false; - } - - // insert null revision to identify the page protection change as edit summary - $latest = $this->getLatest(); - $nullRevision = $this->insertProtectNullRevision( $revCommentMsg, $limit, $expiry, $cascade, $reason ); - if ( $nullRevision === null ) { - return Status::newFatal( 'no-null-revision', $this->mTitle->getPrefixedText() ); - } - - // Update restrictions table - foreach ( $limit as $action => $restrictions ) { - if ( $restrictions != '' ) { - $dbw->replace( 'page_restrictions', array( array( 'pr_page', 'pr_type' ) ), - array( 'pr_page' => $id, - 'pr_type' => $action, - 'pr_level' => $restrictions, - 'pr_cascade' => ( $cascade && $action == 'edit' ) ? 1 : 0, - 'pr_expiry' => $dbw->encodeExpiry( $expiry[$action] ) - ), - __METHOD__ - ); - } else { - $dbw->delete( 'page_restrictions', array( 'pr_page' => $id, - 'pr_type' => $action ), __METHOD__ ); - } - } - - // Clear out legacy restriction fields - $dbw->update( - 'page', - array( 'page_restrictions' => '' ), - array( 'page_id' => $id ), - __METHOD__ - ); - - wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $nullRevision, $latest, $user ) ); - wfRunHooks( 'ArticleProtectComplete', array( &$this, &$user, $limit, $reason ) ); - } else { // Protection of non-existing page (also known as "title protection") - // Cascade protection is meaningless in this case - $cascade = false; - - if ( $limit['create'] != '' ) { - $dbw->replace( 'protected_titles', - array( array( 'pt_namespace', 'pt_title' ) ), - array( - 'pt_namespace' => $this->mTitle->getNamespace(), - 'pt_title' => $this->mTitle->getDBkey(), - 'pt_create_perm' => $limit['create'], - 'pt_timestamp' => $dbw->encodeExpiry( wfTimestampNow() ), - 'pt_expiry' => $dbw->encodeExpiry( $expiry['create'] ), - 'pt_user' => $user->getId(), - 'pt_reason' => $reason, - ), __METHOD__ - ); - } else { - $dbw->delete( 'protected_titles', - array( - 'pt_namespace' => $this->mTitle->getNamespace(), - 'pt_title' => $this->mTitle->getDBkey() - ), __METHOD__ - ); - } - } - - $this->mTitle->flushRestrictions(); - InfoAction::invalidateCache( $this->mTitle ); - - if ( $logAction == 'unprotect' ) { - $params = array(); - } else { - $protectDescriptionLog = $this->protectDescriptionLog( $limit, $expiry ); - $params = array( $protectDescriptionLog, $cascade ? 'cascade' : '' ); - } - - // Update the protection log - $log = new LogPage( 'protect' ); - $log->addEntry( $logAction, $this->mTitle, trim( $reason ), $params, $user ); - - return Status::newGood(); - } - - /** - * Insert a new null revision for this page. - * - * @param string $revCommentMsg comment message key for the revision - * @param array $limit set of restriction keys - * @param array $expiry per restriction type expiration - * @param int $cascade Set to false if cascading protection isn't allowed. - * @param string $reason - * @return Revision|null on error - */ - public function insertProtectNullRevision( $revCommentMsg, array $limit, array $expiry, $cascade, $reason ) { - global $wgContLang; - $dbw = wfGetDB( DB_MASTER ); - - // Prepare a null revision to be added to the history - $editComment = $wgContLang->ucfirst( - wfMessage( - $revCommentMsg, - $this->mTitle->getPrefixedText() - )->inContentLanguage()->text() - ); - if ( $reason ) { - $editComment .= wfMessage( 'colon-separator' )->inContentLanguage()->text() . $reason; - } - $protectDescription = $this->protectDescription( $limit, $expiry ); - if ( $protectDescription ) { - $editComment .= wfMessage( 'word-separator' )->inContentLanguage()->text(); - $editComment .= wfMessage( 'parentheses' )->params( $protectDescription )->inContentLanguage()->text(); - } - if ( $cascade ) { - $editComment .= wfMessage( 'word-separator' )->inContentLanguage()->text(); - $editComment .= wfMessage( 'brackets' )->params( - wfMessage( 'protect-summary-cascade' )->inContentLanguage()->text() - )->inContentLanguage()->text(); - } - - $nullRev = Revision::newNullRevision( $dbw, $this->getId(), $editComment, true ); - if ( $nullRev ) { - $nullRev->insertOn( $dbw ); - - // Update page record and touch page - $oldLatest = $nullRev->getParentId(); - $this->updateRevisionOn( $dbw, $nullRev, $oldLatest ); - } - - return $nullRev; - } - - /** - * @param string $expiry 14-char timestamp or "infinity", or false if the input was invalid - * @return string - */ - protected function formatExpiry( $expiry ) { - global $wgContLang; - $dbr = wfGetDB( DB_SLAVE ); - - $encodedExpiry = $dbr->encodeExpiry( $expiry ); - if ( $encodedExpiry != 'infinity' ) { - return wfMessage( - 'protect-expiring', - $wgContLang->timeanddate( $expiry, false, false ), - $wgContLang->date( $expiry, false, false ), - $wgContLang->time( $expiry, false, false ) - )->inContentLanguage()->text(); - } else { - return wfMessage( 'protect-expiry-indefinite' ) - ->inContentLanguage()->text(); - } - } - - /** - * Builds the description to serve as comment for the edit. - * - * @param array $limit set of restriction keys - * @param array $expiry per restriction type expiration - * @return string - */ - public function protectDescription( array $limit, array $expiry ) { - $protectDescription = ''; - - foreach ( array_filter( $limit ) as $action => $restrictions ) { - # $action is one of $wgRestrictionTypes = array( 'create', 'edit', 'move', 'upload' ). - # All possible message keys are listed here for easier grepping: - # * restriction-create - # * restriction-edit - # * restriction-move - # * restriction-upload - $actionText = wfMessage( 'restriction-' . $action )->inContentLanguage()->text(); - # $restrictions is one of $wgRestrictionLevels = array( '', 'autoconfirmed', 'sysop' ), - # with '' filtered out. All possible message keys are listed below: - # * protect-level-autoconfirmed - # * protect-level-sysop - $restrictionsText = wfMessage( 'protect-level-' . $restrictions )->inContentLanguage()->text(); - - $expiryText = $this->formatExpiry( $expiry[$action] ); - - if ( $protectDescription !== '' ) { - $protectDescription .= wfMessage( 'word-separator' )->inContentLanguage()->text(); - } - $protectDescription .= wfMessage( 'protect-summary-desc' ) - ->params( $actionText, $restrictionsText, $expiryText ) - ->inContentLanguage()->text(); - } - - return $protectDescription; - } - - /** - * Builds the description to serve as comment for the log entry. - * - * Some bots may parse IRC lines, which are generated from log entries which contain plain - * protect description text. Keep them in old format to avoid breaking compatibility. - * TODO: Fix protection log to store structured description and format it on-the-fly. - * - * @param array $limit set of restriction keys - * @param array $expiry per restriction type expiration - * @return string - */ - public function protectDescriptionLog( array $limit, array $expiry ) { - global $wgContLang; - - $protectDescriptionLog = ''; - - foreach ( array_filter( $limit ) as $action => $restrictions ) { - $expiryText = $this->formatExpiry( $expiry[$action] ); - $protectDescriptionLog .= $wgContLang->getDirMark() . "[$action=$restrictions] ($expiryText)"; - } - - return trim( $protectDescriptionLog ); - } - - /** - * Take an array of page restrictions and flatten it to a string - * suitable for insertion into the page_restrictions field. - * @param $limit Array - * @throws MWException - * @return String - */ - protected static function flattenRestrictions( $limit ) { - if ( !is_array( $limit ) ) { - throw new MWException( 'WikiPage::flattenRestrictions given non-array restriction set' ); - } - - $bits = array(); - ksort( $limit ); - - foreach ( array_filter( $limit ) as $action => $restrictions ) { - $bits[] = "$action=$restrictions"; - } - - return implode( ':', $bits ); - } - - /** - * Same as doDeleteArticleReal(), but returns a simple boolean. This is kept around for - * backwards compatibility, if you care about error reporting you should use - * doDeleteArticleReal() instead. - * - * Deletes the article with database consistency, writes logs, purges caches - * - * @param string $reason delete reason for deletion log - * @param $suppress boolean suppress all revisions and log the deletion in - * the suppression log instead of the deletion log - * @param int $id article ID - * @param $commit boolean defaults to true, triggers transaction end - * @param &$error Array of errors to append to - * @param $user User The deleting user - * @return boolean true if successful - */ - public function doDeleteArticle( - $reason, $suppress = false, $id = 0, $commit = true, &$error = '', User $user = null - ) { - $status = $this->doDeleteArticleReal( $reason, $suppress, $id, $commit, $error, $user ); - return $status->isGood(); - } - - /** - * Back-end article deletion - * Deletes the article with database consistency, writes logs, purges caches - * - * @since 1.19 - * - * @param string $reason delete reason for deletion log - * @param $suppress boolean suppress all revisions and log the deletion in - * the suppression log instead of the deletion log - * @param int $id article ID - * @param $commit boolean defaults to true, triggers transaction end - * @param &$error Array of errors to append to - * @param $user User The deleting user - * @return Status: Status object; if successful, $status->value is the log_id of the - * deletion log entry. If the page couldn't be deleted because it wasn't - * found, $status is a non-fatal 'cannotdelete' error - */ - public function doDeleteArticleReal( - $reason, $suppress = false, $id = 0, $commit = true, &$error = '', User $user = null - ) { - global $wgUser, $wgContentHandlerUseDB; - - wfDebug( __METHOD__ . "\n" ); - - $status = Status::newGood(); - - if ( $this->mTitle->getDBkey() === '' ) { - $status->error( 'cannotdelete', wfEscapeWikiText( $this->getTitle()->getPrefixedText() ) ); - return $status; - } - - $user = is_null( $user ) ? $wgUser : $user; - if ( ! wfRunHooks( 'ArticleDelete', array( &$this, &$user, &$reason, &$error, &$status ) ) ) { - if ( $status->isOK() ) { - // Hook aborted but didn't set a fatal status - $status->fatal( 'delete-hook-aborted' ); - } - return $status; - } - - if ( $id == 0 ) { - $this->loadPageData( 'forupdate' ); - $id = $this->getID(); - if ( $id == 0 ) { - $status->error( 'cannotdelete', wfEscapeWikiText( $this->getTitle()->getPrefixedText() ) ); - return $status; - } - } - - // Bitfields to further suppress the content - if ( $suppress ) { - $bitfield = 0; - // This should be 15... - $bitfield |= Revision::DELETED_TEXT; - $bitfield |= Revision::DELETED_COMMENT; - $bitfield |= Revision::DELETED_USER; - $bitfield |= Revision::DELETED_RESTRICTED; - } else { - $bitfield = 'rev_deleted'; - } - - // we need to remember the old content so we can use it to generate all deletion updates. - $content = $this->getContent( Revision::RAW ); - - $dbw = wfGetDB( DB_MASTER ); - $dbw->begin( __METHOD__ ); - // For now, shunt the revision data into the archive table. - // Text is *not* removed from the text table; bulk storage - // is left intact to avoid breaking block-compression or - // immutable storage schemes. - // - // For backwards compatibility, note that some older archive - // table entries will have ar_text and ar_flags fields still. - // - // In the future, we may keep revisions and mark them with - // the rev_deleted field, which is reserved for this purpose. - - $row = array( - 'ar_namespace' => 'page_namespace', - 'ar_title' => 'page_title', - 'ar_comment' => 'rev_comment', - 'ar_user' => 'rev_user', - 'ar_user_text' => 'rev_user_text', - 'ar_timestamp' => 'rev_timestamp', - 'ar_minor_edit' => 'rev_minor_edit', - 'ar_rev_id' => 'rev_id', - 'ar_parent_id' => 'rev_parent_id', - 'ar_text_id' => 'rev_text_id', - 'ar_text' => '\'\'', // Be explicit to appease - 'ar_flags' => '\'\'', // MySQL's "strict mode"... - 'ar_len' => 'rev_len', - 'ar_page_id' => 'page_id', - 'ar_deleted' => $bitfield, - 'ar_sha1' => 'rev_sha1', - ); - - if ( $wgContentHandlerUseDB ) { - $row['ar_content_model'] = 'rev_content_model'; - $row['ar_content_format'] = 'rev_content_format'; - } - - $dbw->insertSelect( 'archive', array( 'page', 'revision' ), - $row, - array( - 'page_id' => $id, - 'page_id = rev_page' - ), __METHOD__ - ); - - // Now that it's safely backed up, delete it - $dbw->delete( 'page', array( 'page_id' => $id ), __METHOD__ ); - $ok = ( $dbw->affectedRows() > 0 ); // $id could be laggy - - if ( !$ok ) { - $dbw->rollback( __METHOD__ ); - $status->error( 'cannotdelete', wfEscapeWikiText( $this->getTitle()->getPrefixedText() ) ); - return $status; - } - - if ( !$dbw->cascadingDeletes() ) { - $dbw->delete( 'revision', array( 'rev_page' => $id ), __METHOD__ ); - } - - $this->doDeleteUpdates( $id, $content ); - - // Log the deletion, if the page was suppressed, log it at Oversight instead - $logtype = $suppress ? 'suppress' : 'delete'; - - $logEntry = new ManualLogEntry( $logtype, 'delete' ); - $logEntry->setPerformer( $user ); - $logEntry->setTarget( $this->mTitle ); - $logEntry->setComment( $reason ); - $logid = $logEntry->insert(); - $logEntry->publish( $logid ); - - if ( $commit ) { - $dbw->commit( __METHOD__ ); - } - - wfRunHooks( 'ArticleDeleteComplete', array( &$this, &$user, $reason, $id, $content, $logEntry ) ); - $status->value = $logid; - return $status; - } - - /** - * Do some database updates after deletion - * - * @param int $id page_id value of the page being deleted - * @param $content Content: optional page content to be used when determining the required updates. - * This may be needed because $this->getContent() may already return null when the page proper was deleted. - */ - public function doDeleteUpdates( $id, Content $content = null ) { - // update site status - DeferredUpdates::addUpdate( new SiteStatsUpdate( 0, 1, - (int)$this->isCountable(), -1 ) ); - - // remove secondary indexes, etc - $updates = $this->getDeletionUpdates( $content ); - DataUpdate::runUpdates( $updates ); - - // Clear caches - WikiPage::onArticleDelete( $this->mTitle ); - - // Reset this object and the Title object - $this->loadFromRow( false, self::READ_LATEST ); - - // Search engine - DeferredUpdates::addUpdate( new SearchUpdate( $id, $this->mTitle ) ); - } - - /** - * Roll back the most recent consecutive set of edits to a page - * from the same user; fails if there are no eligible edits to - * roll back to, e.g. user is the sole contributor. This function - * performs permissions checks on $user, then calls commitRollback() - * to do the dirty work - * - * @todo Separate the business/permission stuff out from backend code - * - * @param string $fromP Name of the user whose edits to rollback. - * @param string $summary Custom summary. Set to default summary if empty. - * @param string $token Rollback token. - * @param $bot Boolean: If true, mark all reverted edits as bot. - * - * @param array $resultDetails contains result-specific array of additional values - * 'alreadyrolled' : 'current' (rev) - * success : 'summary' (str), 'current' (rev), 'target' (rev) - * - * @param $user User The user performing the rollback - * @return array of errors, each error formatted as - * array(messagekey, param1, param2, ...). - * On success, the array is empty. This array can also be passed to - * OutputPage::showPermissionsErrorPage(). - */ - public function doRollback( - $fromP, $summary, $token, $bot, &$resultDetails, User $user - ) { - $resultDetails = null; - - // Check permissions - $editErrors = $this->mTitle->getUserPermissionsErrors( 'edit', $user ); - $rollbackErrors = $this->mTitle->getUserPermissionsErrors( 'rollback', $user ); - $errors = array_merge( $editErrors, wfArrayDiff2( $rollbackErrors, $editErrors ) ); - - if ( !$user->matchEditToken( $token, array( $this->mTitle->getPrefixedText(), $fromP ) ) ) { - $errors[] = array( 'sessionfailure' ); - } - - if ( $user->pingLimiter( 'rollback' ) || $user->pingLimiter() ) { - $errors[] = array( 'actionthrottledtext' ); - } - - // If there were errors, bail out now - if ( !empty( $errors ) ) { - return $errors; - } - - return $this->commitRollback( $fromP, $summary, $bot, $resultDetails, $user ); - } - - /** - * Backend implementation of doRollback(), please refer there for parameter - * and return value documentation - * - * NOTE: This function does NOT check ANY permissions, it just commits the - * rollback to the DB. Therefore, you should only call this function direct- - * ly if you want to use custom permissions checks. If you don't, use - * doRollback() instead. - * @param string $fromP Name of the user whose edits to rollback. - * @param string $summary Custom summary. Set to default summary if empty. - * @param $bot Boolean: If true, mark all reverted edits as bot. - * - * @param array $resultDetails contains result-specific array of additional values - * @param $guser User The user performing the rollback - * @return array - */ - public function commitRollback( $fromP, $summary, $bot, &$resultDetails, User $guser ) { - global $wgUseRCPatrol, $wgContLang; - - $dbw = wfGetDB( DB_MASTER ); - - if ( wfReadOnly() ) { - return array( array( 'readonlytext' ) ); - } - - // Get the last editor - $current = $this->getRevision(); - if ( is_null( $current ) ) { - // Something wrong... no page? - return array( array( 'notanarticle' ) ); - } - - $from = str_replace( '_', ' ', $fromP ); - // User name given should match up with the top revision. - // If the user was deleted then $from should be empty. - if ( $from != $current->getUserText() ) { - $resultDetails = array( 'current' => $current ); - return array( array( 'alreadyrolled', - htmlspecialchars( $this->mTitle->getPrefixedText() ), - htmlspecialchars( $fromP ), - htmlspecialchars( $current->getUserText() ) - ) ); - } - - // Get the last edit not by this guy... - // Note: these may not be public values - $user = intval( $current->getRawUser() ); - $user_text = $dbw->addQuotes( $current->getRawUserText() ); - $s = $dbw->selectRow( 'revision', - array( 'rev_id', 'rev_timestamp', 'rev_deleted' ), - array( 'rev_page' => $current->getPage(), - "rev_user != {$user} OR rev_user_text != {$user_text}" - ), __METHOD__, - array( 'USE INDEX' => 'page_timestamp', - 'ORDER BY' => 'rev_timestamp DESC' ) - ); - if ( $s === false ) { - // No one else ever edited this page - return array( array( 'cantrollback' ) ); - } elseif ( $s->rev_deleted & Revision::DELETED_TEXT || $s->rev_deleted & Revision::DELETED_USER ) { - // Only admins can see this text - return array( array( 'notvisiblerev' ) ); - } - - $set = array(); - if ( $bot && $guser->isAllowed( 'markbotedits' ) ) { - // Mark all reverted edits as bot - $set['rc_bot'] = 1; - } - - if ( $wgUseRCPatrol ) { - // Mark all reverted edits as patrolled - $set['rc_patrolled'] = 1; - } - - if ( count( $set ) ) { - $dbw->update( 'recentchanges', $set, - array( /* WHERE */ - 'rc_cur_id' => $current->getPage(), - 'rc_user_text' => $current->getUserText(), - 'rc_timestamp > ' . $dbw->addQuotes( $s->rev_timestamp ), - ), __METHOD__ - ); - } - - // Generate the edit summary if necessary - $target = Revision::newFromId( $s->rev_id ); - if ( empty( $summary ) ) { - if ( $from == '' ) { // no public user name - $summary = wfMessage( 'revertpage-nouser' ); - } else { - $summary = wfMessage( 'revertpage' ); - } - } - - // Allow the custom summary to use the same args as the default message - $args = array( - $target->getUserText(), $from, $s->rev_id, - $wgContLang->timeanddate( wfTimestamp( TS_MW, $s->rev_timestamp ) ), - $current->getId(), $wgContLang->timeanddate( $current->getTimestamp() ) - ); - if ( $summary instanceof Message ) { - $summary = $summary->params( $args )->inContentLanguage()->text(); - } else { - $summary = wfMsgReplaceArgs( $summary, $args ); - } - - // Trim spaces on user supplied text - $summary = trim( $summary ); - - // Truncate for whole multibyte characters. - $summary = $wgContLang->truncate( $summary, 255 ); - - // Save - $flags = EDIT_UPDATE; - - if ( $guser->isAllowed( 'minoredit' ) ) { - $flags |= EDIT_MINOR; - } - - if ( $bot && ( $guser->isAllowedAny( 'markbotedits', 'bot' ) ) ) { - $flags |= EDIT_FORCE_BOT; - } - - // Actually store the edit - $status = $this->doEditContent( $target->getContent(), $summary, $flags, $target->getId(), $guser ); - - if ( !$status->isOK() ) { - return $status->getErrorsArray(); - } - - if ( !empty( $status->value['revision'] ) ) { - $revId = $status->value['revision']->getId(); - } else { - $revId = false; - } - - wfRunHooks( 'ArticleRollbackComplete', array( $this, $guser, $target, $current ) ); - - $resultDetails = array( - 'summary' => $summary, - 'current' => $current, - 'target' => $target, - 'newid' => $revId - ); - - return array(); - } - - /** - * The onArticle*() functions are supposed to be a kind of hooks - * which should be called whenever any of the specified actions - * are done. - * - * This is a good place to put code to clear caches, for instance. - * - * This is called on page move and undelete, as well as edit - * - * @param $title Title object - */ - public static function onArticleCreate( $title ) { - // Update existence markers on article/talk tabs... - if ( $title->isTalkPage() ) { - $other = $title->getSubjectPage(); - } else { - $other = $title->getTalkPage(); - } - - $other->invalidateCache(); - $other->purgeSquid(); - - $title->touchLinks(); - $title->purgeSquid(); - $title->deleteTitleProtection(); - } - - /** - * Clears caches when article is deleted - * - * @param $title Title - */ - public static function onArticleDelete( $title ) { - // Update existence markers on article/talk tabs... - if ( $title->isTalkPage() ) { - $other = $title->getSubjectPage(); - } else { - $other = $title->getTalkPage(); - } - - $other->invalidateCache(); - $other->purgeSquid(); - - $title->touchLinks(); - $title->purgeSquid(); - - // File cache - HTMLFileCache::clearFileCache( $title ); - InfoAction::invalidateCache( $title ); - - // Messages - if ( $title->getNamespace() == NS_MEDIAWIKI ) { - MessageCache::singleton()->replace( $title->getDBkey(), false ); - } - - // Images - if ( $title->getNamespace() == NS_FILE ) { - $update = new HTMLCacheUpdate( $title, 'imagelinks' ); - $update->doUpdate(); - } - - // User talk pages - if ( $title->getNamespace() == NS_USER_TALK ) { - $user = User::newFromName( $title->getText(), false ); - if ( $user ) { - $user->setNewtalk( false ); - } - } - - // Image redirects - RepoGroup::singleton()->getLocalRepo()->invalidateImageRedirect( $title ); - } - - /** - * Purge caches on page update etc - * - * @param $title Title object - * @todo Verify that $title is always a Title object (and never false or null), add Title hint to parameter $title - */ - public static function onArticleEdit( $title ) { - // Invalidate caches of articles which include this page - DeferredUpdates::addHTMLCacheUpdate( $title, 'templatelinks' ); - - // Invalidate the caches of all pages which redirect here - DeferredUpdates::addHTMLCacheUpdate( $title, 'redirect' ); - - // Purge squid for this page only - $title->purgeSquid(); - - // Clear file cache for this page only - HTMLFileCache::clearFileCache( $title ); - InfoAction::invalidateCache( $title ); - } - - /**#@-*/ - - /** - * Returns a list of categories this page is a member of. - * Results will include hidden categories - * - * @return TitleArray - */ - public function getCategories() { - $id = $this->getId(); - if ( $id == 0 ) { - return TitleArray::newFromResult( new FakeResultWrapper( array() ) ); - } - - $dbr = wfGetDB( DB_SLAVE ); - $res = $dbr->select( 'categorylinks', - array( 'cl_to AS page_title, ' . NS_CATEGORY . ' AS page_namespace' ), - // Have to do that since DatabaseBase::fieldNamesWithAlias treats numeric indexes - // as not being aliases, and NS_CATEGORY is numeric - array( 'cl_from' => $id ), - __METHOD__ ); - - return TitleArray::newFromResult( $res ); - } - - /** - * Returns a list of hidden categories this page is a member of. - * Uses the page_props and categorylinks tables. - * - * @return Array of Title objects - */ - public function getHiddenCategories() { - $result = array(); - $id = $this->getId(); - - if ( $id == 0 ) { - return array(); - } - - $dbr = wfGetDB( DB_SLAVE ); - $res = $dbr->select( array( 'categorylinks', 'page_props', 'page' ), - array( 'cl_to' ), - array( 'cl_from' => $id, 'pp_page=page_id', 'pp_propname' => 'hiddencat', - 'page_namespace' => NS_CATEGORY, 'page_title=cl_to' ), - __METHOD__ ); - - if ( $res !== false ) { - foreach ( $res as $row ) { - $result[] = Title::makeTitle( NS_CATEGORY, $row->cl_to ); - } - } - - return $result; - } - - /** - * Return an applicable autosummary if one exists for the given edit. - * @param string|null $oldtext the previous text of the page. - * @param string|null $newtext The submitted text of the page. - * @param int $flags bitmask: a bitmask of flags submitted for the edit. - * @return string An appropriate autosummary, or an empty string. - * - * @deprecated since 1.21, use ContentHandler::getAutosummary() instead - */ - public static function getAutosummary( $oldtext, $newtext, $flags ) { - // NOTE: stub for backwards-compatibility. assumes the given text is wikitext. will break horribly if it isn't. - - ContentHandler::deprecated( __METHOD__, '1.21' ); - - $handler = ContentHandler::getForModelID( CONTENT_MODEL_WIKITEXT ); - $oldContent = is_null( $oldtext ) ? null : $handler->unserializeContent( $oldtext ); - $newContent = is_null( $newtext ) ? null : $handler->unserializeContent( $newtext ); - - return $handler->getAutosummary( $oldContent, $newContent, $flags ); - } - - /** - * Auto-generates a deletion reason - * - * @param &$hasHistory Boolean: whether the page has a history - * @return mixed String containing deletion reason or empty string, or boolean false - * if no revision occurred - */ - public function getAutoDeleteReason( &$hasHistory ) { - return $this->getContentHandler()->getAutoDeleteReason( $this->getTitle(), $hasHistory ); - } - - /** - * Update all the appropriate counts in the category table, given that - * we've added the categories $added and deleted the categories $deleted. - * - * @param array $added The names of categories that were added - * @param array $deleted The names of categories that were deleted - */ - public function updateCategoryCounts( array $added, array $deleted ) { - $that = $this; - $method = __METHOD__; - $dbw = wfGetDB( DB_MASTER ); - - // Do this at the end of the commit to reduce lock wait timeouts - $dbw->onTransactionPreCommitOrIdle( - function() use ( $dbw, $that, $method, $added, $deleted ) { - $ns = $that->getTitle()->getNamespace(); - - $addFields = array( 'cat_pages = cat_pages + 1' ); - $removeFields = array( 'cat_pages = cat_pages - 1' ); - if ( $ns == NS_CATEGORY ) { - $addFields[] = 'cat_subcats = cat_subcats + 1'; - $removeFields[] = 'cat_subcats = cat_subcats - 1'; - } elseif ( $ns == NS_FILE ) { - $addFields[] = 'cat_files = cat_files + 1'; - $removeFields[] = 'cat_files = cat_files - 1'; - } - - if ( count( $added ) ) { - $insertRows = array(); - foreach ( $added as $cat ) { - $insertRows[] = array( - 'cat_title' => $cat, - 'cat_pages' => 1, - 'cat_subcats' => ( $ns == NS_CATEGORY ) ? 1 : 0, - 'cat_files' => ( $ns == NS_FILE ) ? 1 : 0, - ); - } - $dbw->upsert( - 'category', - $insertRows, - array( 'cat_title' ), - $addFields, - $method - ); - } - - if ( count( $deleted ) ) { - $dbw->update( - 'category', - $removeFields, - array( 'cat_title' => $deleted ), - $method - ); - } - - foreach ( $added as $catName ) { - $cat = Category::newFromName( $catName ); - wfRunHooks( 'CategoryAfterPageAdded', array( $cat, $that ) ); - } - - foreach ( $deleted as $catName ) { - $cat = Category::newFromName( $catName ); - wfRunHooks( 'CategoryAfterPageRemoved', array( $cat, $that ) ); - } - } - ); - } - - /** - * Updates cascading protections - * - * @param $parserOutput ParserOutput object for the current version - */ - public function doCascadeProtectionUpdates( ParserOutput $parserOutput ) { - if ( wfReadOnly() || !$this->mTitle->areRestrictionsCascading() ) { - return; - } - - // templatelinks table may have become out of sync, - // especially if using variable-based transclusions. - // For paranoia, check if things have changed and if - // so apply updates to the database. This will ensure - // that cascaded protections apply as soon as the changes - // are visible. - - // Get templates from templatelinks - $id = $this->getId(); - - $tlTemplates = array(); - - $dbr = wfGetDB( DB_SLAVE ); - $res = $dbr->select( array( 'templatelinks' ), - array( 'tl_namespace', 'tl_title' ), - array( 'tl_from' => $id ), - __METHOD__ - ); - - foreach ( $res as $row ) { - $tlTemplates["{$row->tl_namespace}:{$row->tl_title}"] = true; - } - - // Get templates from parser output. - $poTemplates = array(); - foreach ( $parserOutput->getTemplates() as $ns => $templates ) { - foreach ( $templates as $dbk => $id ) { - $poTemplates["$ns:$dbk"] = true; - } - } - - // Get the diff - $templates_diff = array_diff_key( $poTemplates, $tlTemplates ); - - if ( count( $templates_diff ) > 0 ) { - // Whee, link updates time. - // Note: we are only interested in links here. We don't need to get other DataUpdate items from the parser output. - $u = new LinksUpdate( $this->mTitle, $parserOutput, false ); - $u->doUpdate(); - } - } - - /** - * Return a list of templates used by this article. - * Uses the templatelinks table - * - * @deprecated in 1.19; use Title::getTemplateLinksFrom() - * @return Array of Title objects - */ - public function getUsedTemplates() { - return $this->mTitle->getTemplateLinksFrom(); - } - - /** - * Perform article updates on a special page creation. - * - * @param $rev Revision object - * - * @todo This is a shitty interface function. Kill it and replace the - * other shitty functions like doEditUpdates and such so it's not needed - * anymore. - * @deprecated since 1.18, use doEditUpdates() - */ - public function createUpdates( $rev ) { - wfDeprecated( __METHOD__, '1.18' ); - global $wgUser; - $this->doEditUpdates( $rev, $wgUser, array( 'created' => true ) ); - } - - /** - * This function is called right before saving the wikitext, - * so we can do things like signatures and links-in-context. - * - * @deprecated in 1.19; use Parser::preSaveTransform() instead - * @param string $text article contents - * @param $user User object: user doing the edit - * @param $popts ParserOptions object: parser options, default options for - * the user loaded if null given - * @return string article contents with altered wikitext markup (signatures - * converted, {{subst:}}, templates, etc.) - */ - public function preSaveTransform( $text, User $user = null, ParserOptions $popts = null ) { - global $wgParser, $wgUser; - - wfDeprecated( __METHOD__, '1.19' ); - - $user = is_null( $user ) ? $wgUser : $user; - - if ( $popts === null ) { - $popts = ParserOptions::newFromUser( $user ); - } - - return $wgParser->preSaveTransform( $text, $this->mTitle, $user, $popts ); - } - - /** - * Check whether the number of revisions of this page surpasses $wgDeleteRevisionsLimit - * - * @deprecated in 1.19; use Title::isBigDeletion() instead. - * @return bool - */ - public function isBigDeletion() { - wfDeprecated( __METHOD__, '1.19' ); - return $this->mTitle->isBigDeletion(); - } - - /** - * Get the approximate revision count of this page. - * - * @deprecated in 1.19; use Title::estimateRevisionCount() instead. - * @return int - */ - public function estimateRevisionCount() { - wfDeprecated( __METHOD__, '1.19' ); - return $this->mTitle->estimateRevisionCount(); - } - - /** - * Update the article's restriction field, and leave a log entry. - * - * @deprecated since 1.19 - * @param array $limit set of restriction keys - * @param $reason String - * @param &$cascade Integer. Set to false if cascading protection isn't allowed. - * @param array $expiry per restriction type expiration - * @param $user User The user updating the restrictions - * @return bool true on success - */ - public function updateRestrictions( - $limit = array(), $reason = '', &$cascade = 0, $expiry = array(), User $user = null - ) { - global $wgUser; - - $user = is_null( $user ) ? $wgUser : $user; - - return $this->doUpdateRestrictions( $limit, $expiry, $cascade, $reason, $user )->isOK(); - } - - /** - * @deprecated since 1.18 - */ - public function quickEdit( $text, $comment = '', $minor = 0 ) { - wfDeprecated( __METHOD__, '1.18' ); - global $wgUser; - $this->doQuickEdit( $text, $wgUser, $comment, $minor ); - } - - /** - * @deprecated since 1.18 - */ - public function viewUpdates() { - wfDeprecated( __METHOD__, '1.18' ); - global $wgUser; - $this->doViewUpdates( $wgUser ); - } - - /** - * @deprecated since 1.18 - * @param $oldid int - * @return bool - */ - public function useParserCache( $oldid ) { - wfDeprecated( __METHOD__, '1.18' ); - global $wgUser; - return $this->isParserCacheUsed( ParserOptions::newFromUser( $wgUser ), $oldid ); - } - - /** - * Returns a list of updates to be performed when this page is deleted. The updates should remove any information - * about this page from secondary data stores such as links tables. - * - * @param Content|null $content optional Content object for determining the necessary updates - * @return Array an array of DataUpdates objects - */ - public function getDeletionUpdates( Content $content = null ) { - if ( !$content ) { - // load content object, which may be used to determine the necessary updates - // XXX: the content may not be needed to determine the updates, then this would be overhead. - $content = $this->getContent( Revision::RAW ); - } - - if ( !$content ) { - $updates = array(); - } else { - $updates = $content->getDeletionUpdates( $this ); - } - - wfRunHooks( 'WikiPageDeletionUpdates', array( $this, $content, &$updates ) ); - return $updates; - } - -} - -class PoolWorkArticleView extends PoolCounterWork { - - /** - * @var Page - */ - private $page; - - /** - * @var string - */ - private $cacheKey; - - /** - * @var integer - */ - private $revid; - - /** - * @var ParserOptions - */ - private $parserOptions; - - /** - * @var Content|null - */ - private $content = null; - - /** - * @var ParserOutput|bool - */ - private $parserOutput = false; - - /** - * @var bool - */ - private $isDirty = false; - - /** - * @var Status|bool - */ - private $error = false; - - /** - * Constructor - * - * @param $page Page|WikiPage - * @param $revid Integer: ID of the revision being parsed - * @param $useParserCache Boolean: whether to use the parser cache - * @param $parserOptions parserOptions to use for the parse operation - * @param $content Content|String: content to parse or null to load it; may also be given as a wikitext string, for BC - */ - function __construct( Page $page, ParserOptions $parserOptions, $revid, $useParserCache, $content = null ) { - if ( is_string( $content ) ) { // BC: old style call - $modelId = $page->getRevision()->getContentModel(); - $format = $page->getRevision()->getContentFormat(); - $content = ContentHandler::makeContent( $content, $page->getTitle(), $modelId, $format ); - } - - $this->page = $page; - $this->revid = $revid; - $this->cacheable = $useParserCache; - $this->parserOptions = $parserOptions; - $this->content = $content; - $this->cacheKey = ParserCache::singleton()->getKey( $page, $parserOptions ); - parent::__construct( 'ArticleView', $this->cacheKey . ':revid:' . $revid ); - } - - /** - * Get the ParserOutput from this object, or false in case of failure - * - * @return ParserOutput - */ - public function getParserOutput() { - return $this->parserOutput; - } - - /** - * Get whether the ParserOutput is a dirty one (i.e. expired) - * - * @return bool - */ - public function getIsDirty() { - return $this->isDirty; - } - - /** - * Get a Status object in case of error or false otherwise - * - * @return Status|bool - */ - public function getError() { - return $this->error; - } - - /** - * @return bool - */ - function doWork() { - global $wgUseFileCache; - - // @todo several of the methods called on $this->page are not declared in Page, but present - // in WikiPage and delegated by Article. - - $isCurrent = $this->revid === $this->page->getLatest(); - - if ( $this->content !== null ) { - $content = $this->content; - } elseif ( $isCurrent ) { - // XXX: why use RAW audience here, and PUBLIC (default) below? - $content = $this->page->getContent( Revision::RAW ); - } else { - $rev = Revision::newFromTitle( $this->page->getTitle(), $this->revid ); - - if ( $rev === null ) { - $content = null; - } else { - // XXX: why use PUBLIC audience here (default), and RAW above? - $content = $rev->getContent(); - } - } - - if ( $content === null ) { - return false; - } - - // Reduce effects of race conditions for slow parses (bug 46014) - $cacheTime = wfTimestampNow(); - - $time = - microtime( true ); - $this->parserOutput = $content->getParserOutput( $this->page->getTitle(), $this->revid, $this->parserOptions ); - $time += microtime( true ); - - // Timing hack - if ( $time > 3 ) { - wfDebugLog( 'slow-parse', sprintf( "%-5.2f %s", $time, - $this->page->getTitle()->getPrefixedDBkey() ) ); - } - - if ( $this->cacheable && $this->parserOutput->isCacheable() ) { - ParserCache::singleton()->save( - $this->parserOutput, $this->page, $this->parserOptions, $cacheTime ); - } - - // Make sure file cache is not used on uncacheable content. - // Output that has magic words in it can still use the parser cache - // (if enabled), though it will generally expire sooner. - if ( !$this->parserOutput->isCacheable() || $this->parserOutput->containsOldMagic() ) { - $wgUseFileCache = false; - } - - if ( $isCurrent ) { - $this->page->doCascadeProtectionUpdates( $this->parserOutput ); - } - - return true; - } - - /** - * @return bool - */ - function getCachedWork() { - $this->parserOutput = ParserCache::singleton()->get( $this->page, $this->parserOptions ); - - if ( $this->parserOutput === false ) { - wfDebug( __METHOD__ . ": parser cache miss\n" ); - return false; - } else { - wfDebug( __METHOD__ . ": parser cache hit\n" ); - return true; - } - } - - /** - * @return bool - */ - function fallback() { - $this->parserOutput = ParserCache::singleton()->getDirty( $this->page, $this->parserOptions ); - - if ( $this->parserOutput === false ) { - wfDebugLog( 'dirty', "dirty missing\n" ); - wfDebug( __METHOD__ . ": no dirty cache\n" ); - return false; - } else { - wfDebug( __METHOD__ . ": sending dirty output\n" ); - wfDebugLog( 'dirty', "dirty output {$this->cacheKey}\n" ); - $this->isDirty = true; - return true; - } - } - - /** - * @param $status Status - * @return bool - */ - function error( $status ) { - $this->error = $status; - return false; - } -} |