/**
* Return an XML string describing the DjVu image
- * @return string
+ * @return string|bool
*/
function retrieveMetaData() {
global $wgDjvuToXML, $wgDjvuDump, $wgDjvuTxt;
- wfProfileIn( __METHOD__ );
+
+ if ( !$this->isValid() ) {
+ return false;
+ }
if ( isset( $wgDjvuDump ) ) {
# djvudump is faster as of version 3.5
$xml = $xml . $txt . '</mw-djvu>';
}
}
- wfProfileOut( __METHOD__ );
return $xml;
}