Ticket #26675: 26675-2014.02.19.patch

wp-includes/media.php

@@ -2133 +2133 @@
  */
 function get_media_embedded_in_content( $content, $types = null ) {
         $html = array();
-        $allowed_media_types = array( 'audio', 'video', 'object', 'embed', 'iframe' );
+
+        $allowed_media_types = apply_filters( 'get_media_embedded_in_content_allowed', array( 'audio', 'video', 'object', 'embed', 'iframe' ) );
+
         if ( ! empty( $types ) ) {
-                if ( ! is_array( $types ) )
+                if ( ! is_array( $types ) ) {
                         $types = array( $types );
+                }
+
                 $allowed_media_types = array_intersect( $allowed_media_types, $types );
         }
 
-        foreach ( $allowed_media_types as $tag ) {
-                if ( preg_match( '#' . get_tag_regex( $tag ) . '#', $content, $matches ) ) {
-                        $html[] = $matches[0];
+        $tags = implode( '|', $allowed_media_types );
+
+        if ( preg_match_all( '#<(?P<tag>' . $tags . ')[^<]*?(?:>[\s\S]*?<\/(?P=tag)>|\s*\/>)#', $content, $matches ) ) {
+                foreach ( $matches[0] as $match ) {
+                        $html[] = $match;
                 }
         }