Special:Userrights didn't recognize user as self if person didn't capitalize
[lhc/web/wiklou.git] / includes / filerepo / LocalFile.php
index 1f1c84d..c321d91 100644 (file)
@@ -22,10 +22,9 @@ define( 'MW_FILE_VERSION', 8 );
  * The convenience functions wfLocalFile() and wfFindFile() should be sufficient
  * in most cases.
  *
- * @addtogroup FileRepo
+ * @ingroup FileRepo
  */
-class LocalFile extends File
-{
+class LocalFile extends File {
        /**#@+
         * @private
         */
@@ -49,6 +48,7 @@ class LocalFile extends File
                $dataLoaded,       # Whether or not all this has been loaded from the database (loadFromXxx)
                $upgraded,         # Whether the row was upgraded on load
                $locked,           # True if the image row is locked
+               $missing,          # True if file is not present in file system. Not to be cached in memcached
                $deleted;       # Bitfield akin to rev_deleted
 
        /**#@-*/
@@ -68,11 +68,53 @@ class LocalFile extends File
         * Do not call this except from inside a repo class.
         */
        static function newFromRow( $row, $repo ) {
-               $title = Title::makeTitle( NS_IMAGE, $row->img_name );
+               $title = Title::makeTitle( NS_FILE, $row->img_name );
                $file = new self( $title, $repo );
                $file->loadFromRow( $row );
                return $file;
        }
+       
+       /**
+        * Create a LocalFile from a SHA-1 key
+        * Do not call this except from inside a repo class.
+        */
+       static function newFromKey( $sha1, $repo, $timestamp = false ) {
+               # Polymorphic function name to distinguish foreign and local fetches
+               $fname = get_class( $this ) . '::' . __FUNCTION__;
+
+               $conds = array( 'img_sha1' => $sha1 );
+               if( $timestamp ) {
+                       $conds['img_timestamp'] = $timestamp;
+               }
+               $row = $dbr->selectRow( 'image', $this->getCacheFields( 'img_' ), $conds, $fname );
+               if( $row ) {
+                       return self::newFromRow( $row, $repo );
+               } else {
+                       return false;
+               }
+       }
+       
+       /**
+        * Fields in the image table
+        */
+       static function selectFields() {
+               return array(
+                       'img_name',
+                       'img_size',
+                       'img_width',
+                       'img_height',
+                       'img_metadata',
+                       'img_bits',
+                       'img_media_type',
+                       'img_major_mime',
+                       'img_minor_mime',
+                       'img_description',
+                       'img_user',
+                       'img_user_text',
+                       'img_timestamp',
+                       'img_sha1',
+               );
+       }
 
        /**
         * Constructor.
@@ -80,7 +122,7 @@ class LocalFile extends File
         */
        function __construct( $title, $repo ) {
                if( !is_object( $title ) ) {
-                       throw new MWException( __CLASS__.' constructor given bogus title.' );
+                       throw new MWException( __CLASS__ . ' constructor given bogus title.' );
                }
                parent::__construct( $title, $repo );
                $this->metadata = '';
@@ -90,11 +132,12 @@ class LocalFile extends File
        }
 
        /**
-        * Get the memcached key
+        * Get the memcached key for the main data for this file, or false if 
+        * there is no access to the shared cache.
         */
        function getCacheKey() {
-               $hashedName = md5($this->getName());
-               return wfMemcKey( 'file', $hashedName );
+               $hashedName = md5( $this->getName() );
+               return $this->repo->getSharedCacheKey( 'file', $hashedName );
        }
 
        /**
@@ -106,12 +149,13 @@ class LocalFile extends File
                $this->dataLoaded = false;
                $key = $this->getCacheKey();
                if ( !$key ) {
+                       wfProfileOut( __METHOD__ );
                        return false;
                }
                $cachedValues = $wgMemc->get( $key );
 
                // Check if the key existed and belongs to this version of MediaWiki
-               if ( isset($cachedValues['version']) && ( $cachedValues['version'] == MW_FILE_VERSION ) ) {
+               if ( isset( $cachedValues['version'] ) && ( $cachedValues['version'] == MW_FILE_VERSION ) ) {
                        wfDebug( "Pulling file metadata from cache key $key\n" );
                        $this->fileExists = $cachedValues['fileExists'];
                        if ( $this->fileExists ) {
@@ -208,7 +252,7 @@ class LocalFile extends File
                $prefixLength = strlen( $prefix );
                // Sanity check prefix once
                if ( substr( key( $array ), 0, $prefixLength ) !== $prefix ) {
-                       throw new MWException( __METHOD__. ': incorrect $prefix parameter' );
+                       throw new MWException( __METHOD__ .  ': incorrect $prefix parameter' );
                }
                $decoded = array();
                foreach ( $array as $name => $value ) {
@@ -216,19 +260,19 @@ class LocalFile extends File
                }
                $decoded['timestamp'] = wfTimestamp( TS_MW, $decoded['timestamp'] );
                if ( empty( $decoded['major_mime'] ) ) {
-                       $decoded['mime'] = "unknown/unknown";
+                       $decoded['mime'] = 'unknown/unknown';
                } else {
-                       if (!$decoded['minor_mime']) {
-                               $decoded['minor_mime'] = "unknown";
+                       if ( !$decoded['minor_mime'] ) {
+                               $decoded['minor_mime'] = 'unknown';
                        }
-                       $decoded['mime'] = $decoded['major_mime'].'/'.$decoded['minor_mime'];
+                       $decoded['mime'] = $decoded['major_mime'] . '/' . $decoded['minor_mime'];
                }
                # Trim zero padding from char/binary field
                $decoded['sha1'] = rtrim( $decoded['sha1'], "\0" );
                return $decoded;
        }
 
-       /*
+       /**
         * Load file metadata from a DB result row
         */
        function loadFromRow( $row, $prefix = 'img_' ) {
@@ -261,7 +305,7 @@ class LocalFile extends File
                if ( wfReadOnly() ) {
                        return;
                }
-               if ( is_null($this->media_type) ||
+               if ( is_null( $this->media_type ) ||
                        $this->mime == 'image/svg'
                ) {
                        $this->upgradeRow();
@@ -289,16 +333,18 @@ class LocalFile extends File
 
                # Don't destroy file info of missing files
                if ( !$this->fileExists ) {
-                       wfDebug( __METHOD__.": file does not exist, aborting\n" );
+                       wfDebug( __METHOD__ . ": file does not exist, aborting\n" );
+                       wfProfileOut( __METHOD__ );
                        return;
                }
                $dbw = $this->repo->getMasterDB();
                list( $major, $minor ) = self::splitMime( $this->mime );
 
                if ( wfReadOnly() ) {
+                       wfProfileOut( __METHOD__ );
                        return;
                }
-               wfDebug(__METHOD__.': upgrading '.$this->getName()." to the current schema\n");
+               wfDebug( __METHOD__ . ': upgrading ' . $this->getName() . " to the current schema\n" );
 
                $dbw->update( 'image',
                        array(
@@ -349,13 +395,20 @@ class LocalFile extends File
        /** getPath inherited */
        /** isVisible inhereted */
 
+       function isMissing() {
+               if( $this->missing === null ) {
+                       list( $fileExists ) = $this->repo->fileExistsBatch( array( $this->getVirtualUrl() ), FileRepo::FILES_ONLY );
+                       $this->missing = !$fileExists;
+               }
+               return $this->missing;
+       }
+
        /**
         * Return the width of the image
         *
         * Returns false on error
-        * @public
         */
-       function getWidth( $page = 1 ) {
+       public function getWidth( $page = 1 ) {
                $this->load();
                if ( $this->isMultipage() ) {
                        $dim = $this->getHandler()->getPageDimensions( $this, $page );
@@ -373,9 +426,8 @@ class LocalFile extends File
         * Return the height of the image
         *
         * Returns false on error
-        * @public
         */
-       function getHeight( $page = 1 ) {
+       public function getHeight( $page = 1 ) {
                $this->load();
                if ( $this->isMultipage() ) {
                        $dim = $this->getHandler()->getPageDimensions( $this, $page );
@@ -394,7 +446,7 @@ class LocalFile extends File
         *
         * @param $type string 'text' or 'id'
         */
-       function getUser($type='text') {
+       function getUser( $type = 'text' ) {
                $this->load();
                if( $type == 'text' ) {
                        return $this->user_text;
@@ -411,11 +463,15 @@ class LocalFile extends File
                return $this->metadata;
        }
 
+       function getBitDepth() {
+               $this->load();
+               return $this->bits;
+       }
+
        /**
         * Return the size of the image file, in bytes
-        * @public
         */
-       function getSize() {
+       public function getSize() {
                $this->load();
                return $this->size;
        }
@@ -446,9 +502,8 @@ class LocalFile extends File
        /**
         * Returns true if the file file exists on disk.
         * @return boolean Whether file file exist on disk.
-        * @public
         */
-       function exists() {
+       public function exists() {
                $this->load();
                return $this->fileExists;
        }
@@ -471,7 +526,7 @@ class LocalFile extends File
                        // This happened occasionally due to broken migration code in 1.5
                        // Rename to broken-*
                        for ( $i = 0; $i < 100 ; $i++ ) {
-                               $broken = $this->repo->getZonePath('public') . "/broken-$i-$thumbName";
+                               $broken = $this->repo->getZonePath( 'public' ) . "/broken-$i-$thumbName";
                                if ( !file_exists( $broken ) ) {
                                        rename( $thumbPath, $broken );
                                        break;
@@ -496,25 +551,21 @@ class LocalFile extends File
         * Get all thumbnail names previously generated for this file
         */
        function getThumbnails() {
-               if ( $this->isHashed() ) {
-                       $this->load();
-                       $files = array();
-                       $dir = $this->getThumbPath();
-
-                       if ( is_dir( $dir ) ) {
-                               $handle = opendir( $dir );
-
-                               if ( $handle ) {
-                                       while ( false !== ( $file = readdir($handle) ) ) {
-                                               if ( $file{0} != '.' ) {
-                                                       $files[] = $file;
-                                               }
+               $this->load();
+               $files = array();
+               $dir = $this->getThumbPath();
+
+               if ( is_dir( $dir ) ) {
+                       $handle = opendir( $dir );
+
+                       if ( $handle ) {
+                               while ( false !== ( $file = readdir( $handle ) ) ) {
+                                       if ( $file{0} != '.' ) {
+                                               $files[] = $file;
                                        }
-                                       closedir( $handle );
                                }
+                               closedir( $handle );
                        }
-               } else {
-                       $files = array();
                }
 
                return $files;
@@ -534,9 +585,11 @@ class LocalFile extends File
         */
        function purgeHistory() {
                global $wgMemc;
-               $hashedName = md5($this->getName());
-               $oldKey = wfMemcKey( 'oldfile', $hashedName );
-               $wgMemc->delete( $oldKey );
+               $hashedName = md5( $this->getName() );
+               $oldKey = $this->repo->getSharedCacheKey( 'oldfile', $hashedName );
+               if ( $oldKey ) {
+                       $wgMemc->delete( $oldKey );
+               }
        }
 
        /**
@@ -581,24 +634,41 @@ class LocalFile extends File
        /** purgeDescription inherited */
        /** purgeEverything inherited */
 
-       function getHistory($limit = null, $start = null, $end = null) {
+       function getHistory( $limit = null, $start = null, $end = null, $inc = true ) {
                $dbr = $this->repo->getSlaveDB();
-               $conds = $opts = array();
-               $conds[] = "oi_name = " . $dbr->addQuotes( $this->title->getDBKey() );
-               if( $start !== null ) {
-                       $conds[] = "oi_timestamp <= " . $dbr->addQuotes( $dbr->timestamp( $start ) );
+               $tables = array( 'oldimage' );
+               $fields = OldLocalFile::selectFields();
+               $conds = $opts = $join_conds = array();
+               $eq = $inc ? '=' : '';
+               $conds[] = "oi_name = " . $dbr->addQuotes( $this->title->getDBkey() );
+               if( $start ) {
+                       $conds[] = "oi_timestamp <$eq " . $dbr->addQuotes( $dbr->timestamp( $start ) );
                }
-               if( $end !== null ) {
-                       $conds[] = "oi_timestamp >= " . $dbr->addQuotes( $dbr->timestamp( $end ) );
+               if( $end ) {
+                       $conds[] = "oi_timestamp >$eq " . $dbr->addQuotes( $dbr->timestamp( $end ) );
                }
                if( $limit ) {
                        $opts['LIMIT'] = $limit;
                }
-               $opts['ORDER BY'] = 'oi_timestamp DESC';
-               $res = $dbr->select('oldimage', '*', $conds, __METHOD__, $opts);
+               // Search backwards for time > x queries
+               $order = ( !$start && $end !== null ) ? 'ASC' : 'DESC';
+               $opts['ORDER BY'] = "oi_timestamp $order";
+               $opts['USE INDEX'] = array( 'oldimage' => 'oi_name_timestamp' );
+
+               wfRunHooks( 'LocalFile::getHistory', array( &$this, &$tables, &$fields, 
+                       &$conds, &$opts, &$join_conds ) );
+
+               $res = $dbr->select( $tables, $fields, $conds, __METHOD__, $opts, $join_conds );
                $r = array();
-               while( $row = $dbr->fetchObject($res) ) {
-                       $r[] = OldLocalFile::newFromRow($row, $this->repo);
+               while( $row = $dbr->fetchObject( $res ) ) {
+                       if ( $this->repo->oldFileFromRowFactory ) {
+                               $r[] = call_user_func( $this->repo->oldFileFromRowFactory, $row, $this->repo );
+                       } else {
+                               $r[] = OldLocalFile::newFromRow( $row, $this->repo );
+                       }
+               }
+               if( $order == 'ASC' ) {
+                       $r = array_reverse( $r ); // make sure it ends up descending
                }
                return $r;
        }
@@ -610,10 +680,8 @@ class LocalFile extends File
         *  0      return line for current version
         *  1      query for old versions, return first one
         *  2, ... return next old version from above query
-        *
-        * @public
         */
-       function nextHistoryLine() {
+       public function nextHistoryLine() {
                # Polymorphic function name to distinguish foreign and local fetches
                $fname = get_class( $this ) . '::' . __FUNCTION__;
 
@@ -631,12 +699,12 @@ class LocalFile extends File
                                $fname
                        );
                        if ( 0 == $dbr->numRows( $this->historyRes ) ) {
-                               $dbr->freeResult($this->historyRes);
+                               $dbr->freeResult( $this->historyRes );
                                $this->historyRes = null;
-                               return FALSE;
+                               return false;
                        }
-               } else if ( $this->historyLine == 1 ) {
-                       $dbr->freeResult($this->historyRes);
+               } elseif ( $this->historyLine == 1 ) {
+                       $dbr->freeResult( $this->historyRes );
                        $this->historyRes = $dbr->select( 'oldimage', '*',
                                array( 'oi_name' => $this->title->getDBkey() ),
                                $fname,
@@ -650,12 +718,11 @@ class LocalFile extends File
 
        /**
         * Reset the history pointer to the first element of the history
-        * @public
         */
-       function resetHistory() {
+       public function resetHistory() {
                $this->historyLine = 0;
-               if (!is_null($this->historyRes)) {
-                       $this->repo->getSlaveDB()->freeResult($this->historyRes);
+               if ( !is_null( $this->historyRes ) ) {
+                       $this->repo->getSlaveDB()->freeResult( $this->historyRes );
                        $this->historyRes = null;
                }
        }
@@ -676,23 +743,25 @@ class LocalFile extends File
 
        /**
         * Upload a file and record it in the DB
-        * @param string $srcPath Source path or virtual URL
-        * @param string $comment Upload description
-        * @param string $pageText Text to use for the new description page, if a new description page is created
-        * @param integer $flags Flags for publish()
-        * @param array $props File properties, if known. This can be used to reduce the
-        *                         upload time when uploading virtual URLs for which the file info
-        *                         is already known
-        * @param string $timestamp Timestamp for img_timestamp, or false to use the current time
+        * @param $srcPath String: source path or virtual URL
+        * @param $comment String: upload description
+        * @param $pageText String: text to use for the new description page,
+        *                  if a new description page is created
+        * @param $flags Integer: flags for publish()
+        * @param $props Array: File properties, if known. This can be used to reduce the
+        *               upload time when uploading virtual URLs for which the file info
+        *               is already known
+        * @param $timestamp String: timestamp for img_timestamp, or false to use the current time
+        * @param $user Mixed: User object or null to use $wgUser
         *
         * @return FileRepoStatus object. On success, the value member contains the
         *     archive name, or an empty string if it was a new file.
         */
-       function upload( $srcPath, $comment, $pageText, $flags = 0, $props = false, $timestamp = false ) {
+       function upload( $srcPath, $comment, $pageText, $flags = 0, $props = false, $timestamp = false, $user = null ) {
                $this->lock();
                $status = $this->publish( $srcPath, $flags );
                if ( $status->ok ) {
-                       if ( !$this->recordUpload2( $status->value, $comment, $pageText, $props, $timestamp ) ) {
+                       if ( !$this->recordUpload2( $status->value, $comment, $pageText, $props, $timestamp, $user ) ) {
                                $status->fatal( 'filenotfound', $srcPath );
                        }
                }
@@ -707,7 +776,7 @@ class LocalFile extends File
        function recordUpload( $oldver, $desc, $license = '', $copyStatus = '', $source = '',
                $watch = false, $timestamp = false )
        {
-               $pageText = UploadForm::getInitialPageText( $desc, $license, $copyStatus, $source );
+               $pageText = SpecialUpload::getInitialPageText( $desc, $license, $copyStatus, $source );
                if ( !$this->recordUpload2( $oldver, $desc, $pageText ) ) {
                        return false;
                }
@@ -722,18 +791,22 @@ class LocalFile extends File
        /**
         * Record a file upload in the upload log and the image table
         */
-       function recordUpload2( $oldver, $comment, $pageText, $props = false, $timestamp = false )
+       function recordUpload2( $oldver, $comment, $pageText, $props = false, $timestamp = false, $user = null )
        {
-               global $wgUser;
+               if( is_null( $user ) ) {
+                       global $wgUser;
+                       $user = $wgUser; 
+               }
 
                $dbw = $this->repo->getMasterDB();
+               $dbw->begin();
 
                if ( !$props ) {
                        $props = $this->repo->getFileProps( $this->getVirtualUrl() );
                }
                $props['description'] = $comment;
-               $props['user'] = $wgUser->getID();
-               $props['user_text'] = $wgUser->getName();
+               $props['user'] = $user->getId();
+               $props['user_text'] = $user->getName();
                $props['timestamp'] = wfTimestamp( TS_MW );
                $this->setProps( $props );
 
@@ -744,7 +817,7 @@ class LocalFile extends File
 
                // Fail now if the file isn't there
                if ( !$this->fileExists ) {
-                       wfDebug( __METHOD__.": File ".$this->getPath()." went missing!\n" );
+                       wfDebug( __METHOD__ . ": File " . $this->getPath() . " went missing!\n" );
                        return false;
                }
 
@@ -768,8 +841,8 @@ class LocalFile extends File
                                'img_minor_mime' => $this->minor_mime,
                                'img_timestamp' => $timestamp,
                                'img_description' => $comment,
-                               'img_user' => $wgUser->getID(),
-                               'img_user_text' => $wgUser->getName(),
+                               'img_user' => $user->getId(),
+                               'img_user_text' => $user->getName(),
                                'img_metadata' => $this->metadata,
                                'img_sha1' => $this->sha1
                        ),
@@ -814,8 +887,8 @@ class LocalFile extends File
                                        'img_minor_mime' => $this->minor_mime,
                                        'img_timestamp' => $timestamp,
                                        'img_description' => $comment,
-                                       'img_user' => $wgUser->getID(),
-                                       'img_user_text' => $wgUser->getName(),
+                                       'img_user' => $user->getId(),
+                                       'img_user_text' => $user->getName(),
                                        'img_metadata' => $this->metadata,
                                        'img_sha1' => $this->sha1
                                ), array( /* WHERE */
@@ -830,17 +903,22 @@ class LocalFile extends File
                }
 
                $descTitle = $this->getTitle();
-               $article = new Article( $descTitle );
+               $article = new ImagePage( $descTitle );
+               $article->setFile( $this );
 
                # Add the log entry
                $log = new LogPage( 'upload' );
                $action = $reupload ? 'overwrite' : 'upload';
-               $log->addEntry( $action, $descTitle, $comment );
+               $log->addEntry( $action, $descTitle, $comment, array(), $user );
 
                if( $descTitle->exists() ) {
                        # Create a null revision
-                       $nullRevision = Revision::newNullRevision( $dbw, $descTitle->getArticleId(), $log->getRcComment(), false );
+                       $latest = $descTitle->getLatestRevID();
+                       $nullRevision = Revision::newNullRevision( $dbw, $descTitle->getArticleId(),
+                               $log->getRcComment(), false );
                        $nullRevision->insertOn( $dbw );
+                       
+                       wfRunHooks( 'NewRevisionFromEditComplete', array( $article, $nullRevision, $latest, $user ) );
                        $article->updateRevisionOn( $dbw, $nullRevision );
 
                        # Invalidate the cache for the description page
@@ -857,7 +935,7 @@ class LocalFile extends File
 
                # Commit the transaction now, in case something goes wrong later
                # The most important thing is that files don't get lost, especially archives
-               $dbw->immediateCommit();
+               $dbw->commit();
 
                # Invalidate cache for all pages using this file
                $update = new HTMLCacheUpdate( $this->getTitle(), 'imagelinks' );
@@ -874,15 +952,14 @@ class LocalFile extends File
 
        /**
         * Move or copy a file to its public location. If a file exists at the
-        * destination, move it to an archive. Returns the archive name on success
-        * or an empty string if it was a new file, and a wikitext-formatted
-        * WikiError object on failure.
+        * destination, move it to an archive. Returns a FileRepoStatus object with
+        * the archive name in the "value" member on success.
         *
         * The archive name should be passed through to recordUpload for database
         * registration.
         *
-        * @param string $sourcePath Local filesystem path to the source image
-        * @param integer $flags A bitwise combination of:
+        * @param $srcPath String: local filesystem path to the source image
+        * @param $flags Integer: a bitwise combination of:
         *     File::DELETE_SOURCE    Delete the source file, i.e. move
         *         rather than copy
         * @return FileRepoStatus object. On success, the value member contains the
@@ -922,16 +999,14 @@ class LocalFile extends File
         * @return FileRepoStatus object.
         */
        function move( $target ) {
+               wfDebugLog( 'imagemove', "Got request to move {$this->name} to " . $target->getText() );
                $this->lock();
-               $dbw = $this->repo->getMasterDB();
-               $batch = new LocalFileMoveBatch( $this, $target, $dbw );
+               $batch = new LocalFileMoveBatch( $this, $target );
                $batch->addCurrent();
                $batch->addOlds();
-               if( !$this->repo->canTransformVia404() ) {
-                       $batch->addThumbs();
-               }
 
                $status = $batch->execute();
+               wfDebugLog( 'imagemove', "Finished moving {$this->name}" );
                $this->purgeEverything();
                $this->unlock();
 
@@ -994,9 +1069,10 @@ class LocalFile extends File
         *
         * Cache purging is done; logging is caller's responsibility.
         *
-        * @param $reason
-        * @param $suppress
-        * @throws MWException or FSException on database or filestore failure
+        * @param $archiveName String
+        * @param $reason String
+        * @param $suppress Boolean
+        * @throws MWException or FSException on database or file store failure
         * @return FileRepoStatus object.
         */
        function deleteOld( $archiveName, $reason, $suppress=false ) {
@@ -1020,7 +1096,7 @@ class LocalFile extends File
         *
         * @param $versions set of record ids of deleted items to restore,
         *                    or empty to restore all revisions.
-        * @param $unuppress
+        * @param $unsuppress Boolean
         * @return FileRepoStatus
         */
        function restore( $versions = array(), $unsuppress = false ) {
@@ -1065,8 +1141,8 @@ class LocalFile extends File
                if ( !$revision ) return false;
                $text = $revision->getText();
                if ( !$text ) return false;
-               $html = $wgParser->parse( $text, new ParserOptions );
-               return $html;
+               $pout = $wgParser->parse( $text, $this->title, new ParserOptions() );
+               return $pout->getText();
        }
 
        function getDescription() {
@@ -1084,7 +1160,7 @@ class LocalFile extends File
                // Initialise now if necessary
                if ( $this->sha1 == '' && $this->fileExists ) {
                        $this->sha1 = File::sha1Base36( $this->getPath() );
-                       if ( strval( $this->sha1 ) != '' ) {
+                       if ( !wfReadOnly() && strval( $this->sha1 ) != '' ) {
                                $dbw = $this->repo->getMasterDB();
                                $dbw->update( 'image',
                                        array( 'img_sha1' => $this->sha1 ),
@@ -1139,6 +1215,7 @@ class LocalFile extends File
 
 /**
  * Helper class for file deletion
+ * @ingroup FileRepo
  */
 class LocalFileDeleteBatch {
        var $file, $reason, $srcRels = array(), $archiveUrls = array(), $deletionBatch, $suppress;
@@ -1310,7 +1387,7 @@ class LocalFileDeleteBatch {
                        $dbw->delete( 'oldimage',
                                array(
                                        'oi_name' => $this->file->getName(),
-                                       'oi_archive_name IN (' . $dbw->makeList( array_keys( $oldRels ) ) . ')'
+                                       'oi_archive_name' => array_keys( $oldRels )
                                ), __METHOD__ );
                }
                if ( $deleteCurrent ) {
@@ -1322,7 +1399,7 @@ class LocalFileDeleteBatch {
         * Run the transaction
         */
        function execute() {
-               global $wgUser, $wgUseSquid;
+               global $wgUseSquid;
                wfProfileIn( __METHOD__ );
 
                $this->file->lock();
@@ -1335,7 +1412,7 @@ class LocalFileDeleteBatch {
                                array( 'oi_archive_name' ),
                                array( 'oi_name' => $this->file->getName(),
                                        'oi_archive_name IN (' . $dbw->makeList( array_keys($oldRels) ) . ')',
-                                       'oi_deleted & ' . File::DELETED_FILE => File::DELETED_FILE ),
+                                       $dbw->bitAnd('oi_deleted', File::DELETED_FILE) => File::DELETED_FILE ),
                                __METHOD__ );
                        while( $row = $dbw->fetchObject( $res ) ) {
                                $privateFiles[$row->oi_archive_name] = 1;
@@ -1349,7 +1426,7 @@ class LocalFileDeleteBatch {
                foreach ( $this->srcRels as $name => $srcRel ) {
                        // Skip files that have no hash (missing source).
                        // Keep private files where they are.
-                       if ( isset($hashes[$name]) && !array_key_exists($name,$privateFiles) ) {
+                       if ( isset( $hashes[$name] ) && !array_key_exists( $name, $privateFiles ) ) {
                                $hash = $hashes[$name];
                                $key = $hash . $dotExt;
                                $dstRel = $this->file->repo->getDeletedHashPath( $key ) . $key;
@@ -1365,6 +1442,9 @@ class LocalFileDeleteBatch {
                // them in a separate transaction, then run the file ops, then update the fa_name fields.
                $this->doDBInserts();
 
+               // Removes non-existent file from the batch, so we don't get errors.
+               $this->deletionBatch = $this->removeNonexistentFiles( $this->deletionBatch );
+
                // Execute the file deletion batch
                $status = $this->file->repo->deleteBatch( $this->deletionBatch );
                if ( !$status->isGood() ) {
@@ -1376,6 +1456,7 @@ class LocalFileDeleteBatch {
                        // Roll back inserts, release lock and abort
                        // TODO: delete the defunct filearchive rows if we are using a non-transactional DB
                        $this->file->unlockAndRollback();
+                       wfProfileOut( __METHOD__ );
                        return $this->status;
                }
 
@@ -1397,12 +1478,29 @@ class LocalFileDeleteBatch {
                wfProfileOut( __METHOD__ );
                return $this->status;
        }
+
+       /**
+        * Removes non-existent files from a deletion batch.
+        */
+       function removeNonexistentFiles( $batch ) {
+               $files = $newBatch = array();
+               foreach( $batch as $batchItem ) {
+                       list( $src, $dest ) = $batchItem;
+                       $files[$src] = $this->file->repo->getVirtualUrl( 'public' ) . '/' . rawurlencode( $src );
+               }
+               $result = $this->file->repo->fileExistsBatch( $files, FSRepo::FILES_ONLY );
+               foreach( $batch as $batchItem )
+                       if( $result[$batchItem[0]] )
+                               $newBatch[] = $batchItem;
+               return $newBatch;
+       }
 }
 
 #------------------------------------------------------------------------------
 
 /**
  * Helper class for file undeletion
+ * @ingroup FileRepo
  */
 class LocalFileRestoreBatch {
        var $file, $cleanupBatch, $ids, $all, $unsuppress = false;
@@ -1443,7 +1541,7 @@ class LocalFileRestoreBatch {
         * So we save the batch and let the caller call cleanup()
         */
        function execute() {
-               global $wgUser, $wgLang;
+               global $wgLang;
                if ( !$this->all && !$this->ids ) {
                        // Do nothing
                        return $this->file->repo->newGood();
@@ -1463,7 +1561,8 @@ class LocalFileRestoreBatch {
                $result = $dbw->select( 'filearchive', '*',
                        $conditions,
                        __METHOD__,
-                       array( 'ORDER BY' => 'fa_timestamp DESC' ) );
+                       array( 'ORDER BY' => 'fa_timestamp DESC' )
+               );
 
                $idsPresent = array();
                $storeBatch = array();
@@ -1508,15 +1607,11 @@ class LocalFileRestoreBatch {
                                        'minor_mime' => $row->fa_minor_mime,
                                        'major_mime' => $row->fa_major_mime,
                                        'media_type' => $row->fa_media_type,
-                                       'metadata' => $row->fa_metadata );
+                                       'metadata'   => $row->fa_metadata
+                               );
                        }
 
                        if ( $first && !$exists ) {
-                               // The live (current) version cannot be hidden!
-                               if( !$this->unsuppress && $row->fa_deleted ) {
-                                       $this->file->unlock();
-                                       return $status;
-                               }
                                // This revision will be published as the new current version
                                $destRel = $this->file->getRel();
                                $insertCurrent = array(
@@ -1533,7 +1628,13 @@ class LocalFileRestoreBatch {
                                        'img_user'        => $row->fa_user,
                                        'img_user_text'   => $row->fa_user_text,
                                        'img_timestamp'   => $row->fa_timestamp,
-                                       'img_sha1'        => $sha1);
+                                       'img_sha1'        => $sha1
+                               );
+                               // The live (current) version cannot be hidden!
+                               if( !$this->unsuppress && $row->fa_deleted ) {
+                                       $storeBatch[] = array( $deletedUrl, 'public', $destRel );
+                                       $this->cleanupBatch[] = $row->fa_storage_key;
+                               }
                        } else {
                                $archiveName = $row->fa_archive_name;
                                if( $archiveName == '' ) {
@@ -1570,6 +1671,7 @@ class LocalFileRestoreBatch {
                        $deleteIds[] = $row->fa_id;
                        if( !$this->unsuppress && $row->fa_deleted & File::DELETED_FILE ) {
                                // private files can stay where they are
+                               $status->successCount++;
                        } else {
                                $storeBatch[] = array( $deletedUrl, 'public', $destRel );
                                $this->cleanupBatch[] = $row->fa_storage_key;
@@ -1584,6 +1686,9 @@ class LocalFileRestoreBatch {
                        $status->error( 'undelete-missing-filearchive', $id );
                }
 
+               // Remove missing files from batch, so we don't get errors when undeleting them
+               $storeBatch = $this->removeNonexistentFiles( $storeBatch );
+
                // Run the store batch
                // Use the OVERWRITE_SAME flag to smooth over a common error
                $storeStatus = $this->file->repo->storeBatch( $storeBatch, FileRepo::OVERWRITE_SAME );
@@ -1614,9 +1719,10 @@ class LocalFileRestoreBatch {
                                __METHOD__ );
                }
 
-               if( $status->successCount > 0 ) {
+               // If store batch is empty (all files are missing), deletion is to be considered successful
+               if( $status->successCount > 0 || !$storeBatch ) {
                        if( !$exists ) {
-                               wfDebug( __METHOD__." restored {$status->successCount} items, creating a new current\n" );
+                               wfDebug( __METHOD__ . " restored {$status->successCount} items, creating a new current\n" );
 
                                // Update site_stats
                                $site_stats = $dbw->tableName( 'site_stats' );
@@ -1624,7 +1730,7 @@ class LocalFileRestoreBatch {
 
                                $this->file->purgeEverything();
                        } else {
-                               wfDebug( __METHOD__." restored {$status->successCount} as archived versions\n" );
+                               wfDebug( __METHOD__ . " restored {$status->successCount} as archived versions\n" );
                                $this->file->purgeDescription();
                                $this->file->purgeHistory();
                        }
@@ -1633,6 +1739,38 @@ class LocalFileRestoreBatch {
                return $status;
        }
 
+       /**
+        * Removes non-existent files from a store batch.
+        */
+       function removeNonexistentFiles( $triplets ) {
+               $files = $filteredTriplets = array();
+               foreach( $triplets as $file )
+                       $files[$file[0]] = $file[0];
+               $result = $this->file->repo->fileExistsBatch( $files, FSRepo::FILES_ONLY );
+               foreach( $triplets as $file )
+                       if( $result[$file[0]] )
+                               $filteredTriplets[] = $file;
+               return $filteredTriplets;
+       }
+
+       /**
+        * Removes non-existent files from a cleanup batch.
+        */
+       function removeNonexistentFromCleanup( $batch ) {
+               $files = $newBatch = array();
+               $repo = $this->file->repo;
+               foreach( $batch as $file ) {
+                       $files[$file] = $repo->getVirtualUrl( 'deleted' ) . '/' .
+                               rawurlencode( $repo->getDeletedHashPath( $file ) . $file );
+               }
+
+               $result = $repo->fileExistsBatch( $files, FSRepo::FILES_ONLY );
+               foreach( $batch as $file )
+                       if( $result[$file] )
+                               $newBatch[] = $file;
+               return $newBatch;
+       }
+
        /**
         * Delete unused files in the deleted zone.
         * This should be called from outside the transaction in which execute() was called.
@@ -1641,6 +1779,7 @@ class LocalFileRestoreBatch {
                if ( !$this->cleanupBatch ) {
                        return $this->file->repo->newGood();
                }
+               $this->cleanupBatch = $this->removeNonexistentFromCleanup( $this->cleanupBatch );
                $status = $this->file->repo->cleanupDeletedBatch( $this->cleanupBatch );
                return $status;
        }
@@ -1650,35 +1789,37 @@ class LocalFileRestoreBatch {
 
 /**
  * Helper class for file movement
+ * @ingroup FileRepo
  */
 class LocalFileMoveBatch {
-       var $file, $cur, $olds, $oldcount, $archive, $thumbs, $target, $db;
+       var $file, $cur, $olds, $oldCount, $archive, $target, $db;
 
-       function __construct( File $file, Title $target, Database $db ) {
+       function __construct( File $file, Title $target ) {
                $this->file = $file;
                $this->target = $target;
                $this->oldHash = $this->file->repo->getHashPath( $this->file->getName() );
-               $this->newHash = $this->file->repo->getHashPath( $this->target->getDbKey() );
+               $this->newHash = $this->file->repo->getHashPath( $this->target->getDBkey() );
                $this->oldName = $this->file->getName();
                $this->newName = $this->file->repo->getNameFromTitle( $this->target );
                $this->oldRel = $this->oldHash . $this->oldName;
                $this->newRel = $this->newHash . $this->newName;
-               $this->db = $db;
+               $this->db = $file->repo->getMasterDb();
        }
 
+       /**
+        * Add the current image to the batch
+        */
        function addCurrent() {
                $this->cur = array( $this->oldRel, $this->newRel );
        }
 
-       function addThumbs() {
-               // Thumbnails are purged, so no need to move them
-               $this->thumbs = array();
-       }
-
+       /**
+        * Add the old versions of the image to the batch
+        */
        function addOlds() {
                $archiveBase = 'archive';
                $this->olds = array();
-               $this->oldcount = 0;
+               $this->oldCount = 0;
 
                $result = $this->db->select( 'oldimage',
                        array( 'oi_archive_name', 'oi_deleted' ),
@@ -1686,45 +1827,59 @@ class LocalFileMoveBatch {
                        __METHOD__
                );
                while( $row = $this->db->fetchObject( $result ) ) {
-                       $oldname = $row->oi_archive_name;
-                       $bits = explode( '!', $oldname, 2 );
+                       $oldName = $row->oi_archive_name;
+                       $bits = explode( '!', $oldName, 2 );
                        if( count( $bits ) != 2 ) {
-                               wfDebug( 'Invalid old file name: ' . $oldname );
+                               wfDebug( "Invalid old file name: $oldName \n" );
                                continue;
                        }
                        list( $timestamp, $filename ) = $bits;
                        if( $this->oldName != $filename ) {
-                               wfDebug( 'Invalid old file name:' . $oldName );
+                               wfDebug( "Invalid old file name: $oldName \n" );
                                continue;
                        }
-                       $this->oldcount++;
-                       // Do we want to add those to oldcount?
+                       $this->oldCount++;
+                       // Do we want to add those to oldCount?
                        if( $row->oi_deleted & File::DELETED_FILE ) {
                                continue;
                        }
                        $this->olds[] = array(
-                               "{$archiveBase}/{$this->oldHash}{$oldname}",
+                               "{$archiveBase}/{$this->oldHash}{$oldName}",
                                "{$archiveBase}/{$this->newHash}{$timestamp}!{$this->newName}"
                        );
                }
                $this->db->freeResult( $result );
        }
 
+       /**
+        * Perform the move.
+        */
        function execute() {
                $repo = $this->file->repo;
                $status = $repo->newGood();
                $triplets = $this->getMoveTriplets();
 
+               $triplets = $this->removeNonexistentFiles( $triplets );
                $statusDb = $this->doDBUpdates();
+               wfDebugLog( 'imagemove', "Renamed {$this->file->name} in database: {$statusDb->successCount} successes, {$statusDb->failCount} failures" );
                $statusMove = $repo->storeBatch( $triplets, FSRepo::DELETE_SOURCE );
+               wfDebugLog( 'imagemove', "Moved files for {$this->file->name}: {$statusMove->successCount} successes, {$statusMove->failCount} failures" );
                if( !$statusMove->isOk() ) {
+                       wfDebugLog( 'imagemove', "Error in moving files: " . $statusMove->getWikiText() );
                        $this->db->rollback();
                }
+
                $status->merge( $statusDb );
                $status->merge( $statusMove );
                return $status;
        }
 
+       /**
+        * Do the database updates and return a new FileRepoStatus indicating how
+        * many rows where updated.
+        *
+        * @return FileRepoStatus
+        */
        function doDBUpdates() {
                $repo = $this->file->repo;
                $status = $repo->newGood();
@@ -1754,22 +1909,43 @@ class LocalFileMoveBatch {
                        __METHOD__
                );
                $affected = $dbw->affectedRows();
-               $total = $this->oldcount;
+               $total = $this->oldCount;
                $status->successCount += $affected;
                $status->failCount += $total - $affected;
 
                return $status;
        }
 
-       // Generates triplets for FSRepo::storeBatch()
+       /**
+        * Generate triplets for FSRepo::storeBatch().
+        */ 
        function getMoveTriplets() {
-               $moves = array_merge( array( $this->cur ), $this->olds, $this->thumbs );
+               $moves = array_merge( array( $this->cur ), $this->olds );
                $triplets = array();    // The format is: (srcUrl, destZone, destUrl)
                foreach( $moves as $move ) {
                        // $move: (oldRelativePath, newRelativePath)
                        $srcUrl = $this->file->repo->getVirtualUrl() . '/public/' . rawurlencode( $move[0] );
                        $triplets[] = array( $srcUrl, 'public', $move[1] );
+                       wfDebugLog( 'imagemove', "Generated move triplet for {$this->file->name}: {$srcUrl} :: public :: {$move[1]}" );
                }
                return $triplets;
        }
+
+       /**
+        * Removes non-existent files from move batch.
+        */ 
+       function removeNonexistentFiles( $triplets ) {
+               $files = array();
+               foreach( $triplets as $file )
+                       $files[$file[0]] = $file[0];
+               $result = $this->file->repo->fileExistsBatch( $files, FSRepo::FILES_ONLY );
+               $filteredTriplets = array();
+               foreach( $triplets as $file )
+                       if( $result[$file[0]] ) {
+                               $filteredTriplets[] = $file;
+                       } else {
+                               wfDebugLog( 'imagemove', "File {$file[0]} does not exist" );
+                       }
+               return $filteredTriplets;
+       }
 }