/**
* PHP script to stream out an image thumbnail.
- * If the file exists, we make do with abridged MediaWiki initialisation.
+ *
+ * @addtogroup Media
*/
-define( 'MW_NO_SETUP', 1 );
define( 'MW_NO_OUTPUT_COMPRESSION', 1 );
require_once( './includes/WebStart.php' );
wfProfileIn( 'thumb.php' );
wfProfileIn( 'thumb.php-start' );
-require_once( "$IP/includes/GlobalFunctions.php" );
-require_once( "$IP/includes/ImageFunctions.php" );
$wgTrivialMimeDetection = true; //don't use fancy mime detection, just check the file extension for jpg/gif/png.
require_once( "$IP/includes/StreamFile.php" );
-require_once( "$IP/includes/AutoLoader.php" );
// Get input parameters
if ( get_magic_quotes_gpc() ) {
// Some basic input validation
$fileName = strtr( $fileName, '\\/', '__' );
-// Work out paths, carefully avoiding constructing an Image object because that won't work yet
-$handler = thumbGetHandler( $fileName );
-if ( $handler ) {
- $imagePath = wfImageDir( $fileName ) . '/' . $fileName;
- $thumbName = $handler->makeParamString( $params ) . "-$fileName";
- $thumbPath = wfImageThumbDir( $fileName ) . '/' . $thumbName;
-
- if ( is_file( $thumbPath ) && filemtime( $thumbPath ) >= filemtime( $imagePath ) ) {
- wfStreamFile( $thumbPath );
- // Can't log profiling data with no Setup.php
- exit;
+// Stream the file if it exists already
+try {
+ $img = wfLocalFile( $fileName );
+ if ( $img && false != ( $thumbName = $img->thumbName( $params ) ) ) {
+ $thumbPath = $img->getThumbPath( $thumbName );
+
+ if ( is_file( $thumbPath ) ) {
+ wfStreamFile( $thumbPath );
+ wfLogProfilingData();
+ exit;
+ }
}
+} catch ( MWException $e ) {
+ thumbInternalError( $e->getHTML() );
+ wfLogProfilingData();
+ exit;
}
-// OK, no valid thumbnail, time to get out the heavy machinery
wfProfileOut( 'thumb.php-start' );
-require_once( './includes/Setup.php' );
wfProfileIn( 'thumb.php-render' );
-$img = Image::newFromName( $fileName );
try {
if ( $img ) {
- $thumb = $img->transform( $params, Image::RENDER_NOW );
+ $thumb = $img->transform( $params, File::RENDER_NOW );
} else {
$thumb = false;
}
$thumb = false;
}
-if ( $thumb && $thumb->getPath() ) {
+$errorMsg = false;
+if ( !$img ) {
+ $errorMsg = wfMsg( 'badtitletext' );
+} elseif ( !$thumb ) {
+ $errorMsg = wfMsgHtml( 'thumbnail_error', 'File::transform() returned false' );
+} elseif ( $thumb->isError() ) {
+ $errorMsg = $thumb->getHtmlMsg();
+} elseif ( !$thumb->getPath() ) {
+ $errorMsg = wfMsgHtml( 'thumbnail_error', 'No path supplied in thumbnail object' );
+} elseif ( $thumb->getPath() == $img->getPath() ) {
+ $errorMsg = wfMsgHtml( 'thumbnail_error', 'Image was not scaled, ' .
+ 'is the requested width bigger than the source?' );
+} else {
wfStreamFile( $thumb->getPath() );
-} elseif ( $img ) {
+}
+if ( $errorMsg !== false ) {
+ thumbInternalError( $errorMsg );
+}
+
+wfProfileOut( 'thumb.php-render' );
+wfProfileOut( 'thumb.php' );
+wfLogProfilingData();
+
+//--------------------------------------------------------------------------
+
+function thumbInternalError( $msg ) {
header( 'Cache-Control: no-cache' );
header( 'Content-Type: text/html; charset=utf-8' );
header( 'HTTP/1.1 500 Internal server error' );
- if ( !$thumb ) {
- $msg = wfMsgHtml( 'thumbnail_error', 'Image::transform() returned false' );
- } elseif ( $thumb->isError() ) {
- $msg = $thumb->toHtml();
- } else {
- $msg = wfMsgHtml( 'thumbnail_error', 'No path supplied in thumbnail object' );
- }
echo <<<EOT
<html><head><title>Error generating thumbnail</title></head>
<body>
+<h1>Error generating thumbnail</h1>
+<p>
$msg
+</p>
</body>
</html>
EOT;
-} else {
- $badtitle = wfMsg( 'badtitle' );
- $badtitletext = wfMsg( 'badtitletext' );
- header( 'Cache-Control: no-cache' );
- header( 'Content-Type: text/html; charset=utf-8' );
- header( 'HTTP/1.1 500 Internal server error' );
- echo "<html><head>
- <title>$badtitle</title>
- <body>
-<h1>$badtitle</h1>
-<p>$badtitletext</p>
-</body></html>
-";
}
-wfProfileOut( 'thumb.php-render' );
-wfProfileOut( 'thumb.php' );
-wfLogProfilingData();
-
-//--------------------------------------------------------------------------
-
-function thumbGetHandler( $fileName ) {
- // Determine type
- $magic = MimeMagic::singleton();
- $extPos = strrpos( $fileName, '.' );
- if ( $extPos === false ) {
- return false;
- }
- $mime = $magic->guessTypesForExtension( substr( $fileName, $extPos + 1 ) );
- return MediaHandler::getHandler( $mime );
-}
-?>