Changeset 22034

Timestamp:

09/27/2012 03:39:40 AM (12 years ago)

Author:

nacin

Message:

XML-RPC: Add an if_not_modified_since argument to wp.editPost.

Accepts a GMT date, which is used to compare to the current post_modified_gmt
value for the post being edited. If the post has since been edited (as in, too
old of a date was passed), the edit is rejected as overwriting a newer version.

It is rejected with a HTTP 409 Conflict status code. (Fancy.)

props koke, markoheinjen.
Tests: ​[UT1049]

see #21397.

File:

• trunk/wp-includes/class-wp-xmlrpc-server.php (modified) (2 diffs)

trunk/wp-includes/class-wp-xmlrpc-server.php

@@ -1259 +1259 @@
             return new IXR_Error( 404, __( 'Invalid post ID.' ) );
 
+        if ( isset( $content_struct['if_not_modified_since'] ) ) {
+            // If the post has been modified since the date provided, return an error.
+            if ( mysql2date( 'U', $post['post_modified_gmt'] ) > $content_struct['if_not_modified_since']->getTimestamp() ) {
+                return new IXR_Error( 409, __( 'There is a revision of this post that is more recent.' ) );
+            }
+        }
+
         // convert the date field back to IXR form
         $post['post_date'] = $this->_convert_date( $post['post_date'] );
@@ -1476 +1483 @@
                 $query['order'] = $filter['order'];
         }
-        
+
         if ( isset( $filter['s'] ) ) {
             $query['s'] = $filter['s'];