Antiglobalization!
[lhc/web/wiklou.git] / includes / Image.php
index 27eeb9d..cf935d6 100644 (file)
@@ -129,6 +129,7 @@ class Image
        // image's width. Let the browser do the scaling in this case.
        // The thumbnail is stored on disk and is only computed if the thumbnail
        // file does not exist OR if it is older than the image.
+       // Returns the URL.
        function createThumb( $width ) {
                global $wgUploadDirectory;
                global $wgImageMagickConvertCommand;
@@ -158,20 +159,13 @@ class Image
                        return $this->getURL();
                }
 
-               if (    (! file_exists( $thumbPath ) )
-                    || ( filemtime($thumbPath) < filemtime($this->imagePath) ) ) {
-                       # Squid purging
-                       if ( $wgUseSquid ) {
-                               $urlArr = Array(
-                                       $wgInternalServer.$thumbUrl
-                               );
-                               wfPurgeSquidServers($urlArr);
-                       }
-
+               if ( (! file_exists( $thumbPath ) ) || ( filemtime($thumbPath) < filemtime($this->imagePath) ) ) {
                        if ( $wgUseImageMagick ) {
                                # use ImageMagick
+                               # Specify white background color, will be used for transparent images
+                               # in Internet Explorer/Windows instead of default black.
                                $cmd  =  $wgImageMagickConvertCommand .
-                                       " -quality 85 -geometry {$width} ".
+                                       " -quality 85 -background white -geometry {$width} ".
                                        escapeshellarg($this->imagePath) . " " .
                                        escapeshellarg($thumbPath);
                                $conv = shell_exec( $cmd );
@@ -247,42 +241,49 @@ class Image
                                unlink( $thumbPath );
                        }
 
+                       # Purge squid
+                       # This has to be done after the image is updated and present for all machines on NFS, 
+                       # or else the old version might be stored into the squid again
+                       if ( $wgUseSquid ) {
+                               $urlArr = Array(
+                                       $wgInternalServer.$thumbUrl
+                               );
+                               wfPurgeSquidServers($urlArr);
+                       }
                }
                return $thumbUrl;
        } // END OF function createThumb
 
        //**********************************************************************
        // Return the image history of this image, line by line.
-       // start with current version, than old versions.
-       // use $this->historyLine to check which line to return:
+       // starts with current version, then old versions.
+       // uses $this->historyLine to check which line to return:
        //  0      return line for current version
        //  1      query for old versions, return first one
        //  2, ... return next old version from above query
        function nextHistoryLine()
        {
                $fname = "Image::nextHistoryLine()";
-               
-               if ( $this->historyLine == 0 ) // called for the first time, return line from cur
-               { 
-                       $sql = "SELECT img_size,img_description,img_user," .
-                         "img_user_text,img_timestamp, '' AS oi_archive_name FROM image WHERE " .
-                         "img_name='" . wfStrencode( $this->title->getDBkey() ) . "'";
-                       $this->historyRes = wfQuery( $sql, DB_READ, $fname );
-
-                       if ( 0 == wfNumRows( $this->historyRes ) ) { return FALSE; }
-
-               } else if ( $this->historyLine == 1 )
-               {
-                       $sql = "SELECT oi_size AS img_size, oi_description AS img_description," .
-                         "oi_user AS img_user," .
-                         "oi_user_text AS img_user_text, oi_timestamp AS img_timestamp , oi_archive_name FROM oldimage WHERE " .
-                         "oi_name='" . wfStrencode( $this->title->getDBkey() ) . "' " .
-                         "ORDER BY oi_timestamp DESC";
-                       $this->historyRes = wfQuery( $sql, DB_READ, $fname );
+               $dbr =& wfGetDB( DB_SLAVE );
+               if ( $this->historyLine == 0 ) {// called for the first time, return line from cur 
+                       $this->historyRes = $dbr->select( 'image', 
+                               array( 'img_size','img_description','img_user','img_user_text','img_timestamp', "'' AS oi_archive_name" ), 
+                               array( 'img_name' => $this->title->getDBkey() ),
+                               $fname
+                       );
+                       if ( 0 == wfNumRows( $this->historyRes ) ) { 
+                               return FALSE; 
+                       }
+               } else if ( $this->historyLine == 1 ) {
+                       $this->historyRes = $dbr->select( 'oldimage', 
+                               array( 'oi_size AS img_size', 'oi_description AS img_description', 'oi_user AS img_user',
+                                       'oi_user_text AS img_user_text', 'oi_timestamp AS img_timestamp', 'oi_archive_name'
+                               ), array( 'oi_name' => $this->title->getDBkey() ), $fname, array( 'ORDER BY' => 'oi_timestamp DESC' ) 
+                       );
                }
                $this->historyLine ++;
 
-               return wfFetchObject( $this->historyRes );
+               return $dbr->fetchObject( $this->historyRes );
        }
 
        function resetHistory()
@@ -293,3 +294,170 @@ class Image
 
 } //class
 
+
+function wfImageDir( $fname )
+{
+       global $wgUploadDirectory;
+
+       $hash = md5( $fname );
+       $oldumask = umask(0);
+       $dest = $wgUploadDirectory . '/' . $hash{0};
+       if ( ! is_dir( $dest ) ) { mkdir( $dest, 0777 ); }
+       $dest .= '/' . substr( $hash, 0, 2 );
+       if ( ! is_dir( $dest ) ) { mkdir( $dest, 0777 ); }
+
+       umask( $oldumask );
+       return $dest;
+}
+
+function wfImageThumbDir( $fname , $subdir='thumb')
+{
+       return wfImageArchiveDir( $fname, $subdir );
+}
+
+function wfImageArchiveDir( $fname , $subdir='archive')
+{
+       global $wgUploadDirectory;
+
+       $hash = md5( $fname );
+       $oldumask = umask(0);
+
+       # Suppress warning messages here; if the file itself can't
+       # be written we'll worry about it then.
+       $archive = "{$wgUploadDirectory}/{$subdir}";
+       if ( ! is_dir( $archive ) ) { @mkdir( $archive, 0777 ); }
+       $archive .= '/' . $hash{0};
+       if ( ! is_dir( $archive ) ) { @mkdir( $archive, 0777 ); }
+       $archive .= '/' . substr( $hash, 0, 2 );
+       if ( ! is_dir( $archive ) ) { @mkdir( $archive, 0777 ); }
+
+       umask( $oldumask );
+       return $archive;
+}
+
+function wfRecordUpload( $name, $oldver, $size, $desc, $copyStatus = "", $source = "" )
+{
+       global $wgUser, $wgLang, $wgTitle, $wgOut, $wgDeferredUpdateList;
+       global $wgUseCopyrightUpload;
+
+       $fname = 'wfRecordUpload';
+       $dbw =& wfGetDB( DB_MASTER );
+
+       # img_name must be unique
+       if ( !$dbw->indexUnique( 'image', 'img_name' ) ) {
+               wfDebugDieBacktrace( 'Database schema not up to date, please run maintenance/archives/patch-image_name_unique.sql' );
+       }
+
+
+       $now = wfTimestampNow();
+       $won = wfInvertTimestamp( $now );
+       $size = IntVal( $size );
+
+       if ( $wgUseCopyrightUpload )
+         {
+               $textdesc = '== ' . wfMsg ( 'filedesc' ) . " ==\n" . $desc . "\n" .
+                 '== ' . wfMsg ( 'filestatus' ) . " ==\n" . $copyStatus . "\n" .
+                 '== ' . wfMsg ( 'filesource' ) . " ==\n" . $source ;
+         }
+       else $textdesc = $desc ;
+
+       $now = wfTimestampNow();
+       $won = wfInvertTimestamp( $now );
+
+       # Test to see if the row exists using INSERT IGNORE
+       # This avoids race conditions by locking the row until the commit, and also
+       # doesn't deadlock. SELECT FOR UPDATE causes a deadlock for every race condition.
+       $dbw->insert( 'image',
+               array(
+                       'img_name' => $name,
+                       'img_size'=> $size,
+                       'img_timestamp' => $now,
+                       'img_description' => $desc,
+                       'img_user' => $wgUser->getID(),
+                       'img_user_text' => $wgUser->getName(),
+               ), $fname, 'IGNORE'
+       );
+       $descTitle = Title::makeTitle( NS_IMAGE, $name );
+
+       if ( $dbw->affectedRows() ) {
+               # Successfully inserted, this is a new image
+               $id = $descTitle->getArticleID();
+
+               if ( $id == 0 ) {
+                       $seqVal = $dbw->nextSequenceValue( 'cur_cur_id_seq' );
+                       $dbw->insertArray( 'cur',
+                               array(
+                                       'cur_id' => $seqVal,
+                                       'cur_namespace' => NS_IMAGE,
+                                       'cur_title' => $name,
+                                       'cur_comment' => $desc,
+                                       'cur_user' => $wgUser->getID(),
+                                       'cur_user_text' => $wgUser->getName(),
+                                       'cur_timestamp' => $now,
+                                       'cur_is_new' => 1,
+                                       'cur_text' => $textdesc,
+                                       'inverse_timestamp' => $won,
+                                       'cur_touched' => $now
+                               ), $fname
+                       );
+                       $id = $dbw->insertId() or 0; # We should throw an error instead
+
+                       RecentChange::notifyNew( $now, $descTitle, 0, $wgUser, $desc );
+
+                       $u = new SearchUpdate( $id, $name, $desc );
+                       $u->doUpdate();
+               }
+       } else {
+               # Collision, this is an update of an image
+               # Get current image row for update
+               $s = $dbw->getArray( 'image', array( 'img_name','img_size','img_timestamp','img_description',
+                 'img_user','img_user_text' ), array( 'img_name' => $name ), $fname, 'FOR UPDATE' );
+
+               # Insert it into oldimage
+               $dbw->insertArray( 'oldimage',
+                       array(
+                               'oi_name' => $s->img_name,
+                               'oi_archive_name' => $oldver,
+                               'oi_size' => $s->img_size,
+                               'oi_timestamp' => $s->img_timestamp,
+                               'oi_description' => $s->img_description,
+                               'oi_user' => $s->img_user,
+                               'oi_user_text' => $s->img_user_text
+                       ), $fname
+               );
+
+               # Update the current image row
+               $dbw->updateArray( 'image',
+                       array( /* SET */
+                               'img_size' => $size,
+                               'img_timestamp' => wfTimestampNow(),
+                               'img_user' => $wgUser->getID(),
+                               'img_user_text' => $wgUser->getName(),
+                               'img_description' => $desc,
+                       ), array( /* WHERE */
+                               'img_name' => $name
+                       ), $fname
+               );
+
+               # Invalidate the cache for the description page
+               $descTitle->invalidateCache();
+       }
+
+       $log = new LogPage( wfMsg( 'uploadlogpage' ), wfMsg( 'uploadlogpagetext' ) );
+       $da = wfMsg( 'uploadedimage', '[[:' . $wgLang->getNsText(
+         Namespace::getImage() ) . ":{$name}|{$name}]]" );
+       $ta = wfMsg( 'uploadedimage', $name );
+       $log->addEntry( $da, $desc, $ta );
+}
+
+function wfImageArchiveUrl( $name )
+{
+       global $wgUploadPath;
+
+       $hash = md5( substr( $name, 15) );
+       $url = "{$wgUploadPath}/archive/" . $hash{0} . "/" .
+         substr( $hash, 0, 2 ) . "/{$name}";
+       return wfUrlencode($url);
+}
+
+?>