+ if ( $magic->getTypesForExtension( $extension ) !== null ) {
+ wfDebug( __METHOD__ . ": No extension known for $mime, but we know a mime for $extension\n" );
+ return false;
+ } else {
+ wfDebug( __METHOD__ . ": no file extension known for mime type $mime, passing file\n" );
+ return true;
+ }