WordPress 3.5.1-scripts

[autoinstalls/wordpress.git] / wp-includes / class-wp-xmlrpc-server.php

diff --git a/wp-includes/class-wp-xmlrpc-server.php b/wp-includes/class-wp-xmlrpc-server.php
index ac758e4c1b81331066049923d741b607d3e221fd..a0827cac41c7fa242b893a5d6ac9a3415816ca53 100644 (file)
--- a/wp-includes/class-wp-xmlrpc-server.php
+++ b/wp-includes/class-wp-xmlrpc-server.php
@@ -5309,10 +5309,14 @@ class wp_xmlrpc_server extends IXR_Server {
                $pagelinkedto = str_replace('&', '&', $pagelinkedto);
                $pagelinkedto = str_replace('&', '&', $pagelinkedto);
 
+               $pagelinkedfrom = apply_filters( 'pingback_ping_source_uri', $pagelinkedfrom, $pagelinkedto );
+               if ( ! $pagelinkedfrom )
+                       return $this->pingback_error( 0, __( 'A valid URL was not provided.' ) );
+
                // Check if the page linked to is in our site
                $pos1 = strpos($pagelinkedto, str_replace(array('http://www.','http://','https://www.','https://'), '', get_option('home')));
                if ( !$pos1 )
-                       return new IXR_Error(0, __('Is there no link to us?'));
+                       return $this->pingback_error( 0, __( 'Is there no link to us?' ) );
 
                // let's find which post is linked to
                // FIXME: does url_to_postid() cover all these cases already?
@@ -5346,39 +5350,39 @@ class wp_xmlrpc_server extends IXR_Server {
                                $sql = $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_title RLIKE %s", like_escape( $title ) );
                                if (! ($post_ID = $wpdb->get_var($sql)) ) {
                                        // returning unknown error '0' is better than die()ing
-                                       return new IXR_Error(0, '');
+                                       return $this->pingback_error( 0, '' );
                                }
                                $way = 'from the fragment (title)';
                        }
                } else {
                        // TODO: Attempt to extract a post ID from the given URL
-                       return new IXR_Error(33, __('The specified target URL cannot be used as a target. It either doesn’t exist, or it is not a pingback-enabled resource.'));
+                       return $this->pingback_error( 33, __('The specified target URL cannot be used as a target. It either doesn’t exist, or it is not a pingback-enabled resource.' ) );
                }
                $post_ID = (int) $post_ID;
 
                $post = get_post($post_ID);
 
                if ( !$post ) // Post_ID not found
-                       return new IXR_Error(33, __('The specified target URL cannot be used as a target. It either doesn’t exist, or it is not a pingback-enabled resource.'));
+                       return $this->pingback_error( 33, __( 'The specified target URL cannot be used as a target. It either doesn’t exist, or it is not a pingback-enabled resource.' ) );
 
                if ( $post_ID == url_to_postid($pagelinkedfrom) )
-                       return new IXR_Error(0, __('The source URL and the target URL cannot both point to the same resource.'));
+                       return $this->pingback_error( 0, __( 'The source URL and the target URL cannot both point to the same resource.' ) );
 
                // Check if pings are on
                if ( !pings_open($post) )
-                       return new IXR_Error(33, __('The specified target URL cannot be used as a target. It either doesn’t exist, or it is not a pingback-enabled resource.'));
+                       return $this->pingback_error( 33, __( 'The specified target URL cannot be used as a target. It either doesn’t exist, or it is not a pingback-enabled resource.' ) );
 
                // Let's check that the remote site didn't already pingback this entry
                if ( $wpdb->get_results( $wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_author_url = %s", $post_ID, $pagelinkedfrom) ) )
-                       return new IXR_Error( 48, __( 'The pingback has already been registered.' ) );
+                       return $this->pingback_error( 48, __( 'The pingback has already been registered.' ) );
 
                // very stupid, but gives time to the 'from' server to publish !
                sleep(1);
 
                // Let's check the remote site
-               $linea = wp_remote_fopen( $pagelinkedfrom );
+               $linea = wp_remote_retrieve_body( wp_remote_get( $pagelinkedfrom, array( 'timeout' => 10, 'redirection' => 0 ) ) );
                if ( !$linea )
-                       return new IXR_Error(16, __('The source URL does not exist.'));
+                       return $this->pingback_error( 16, __( 'The source URL does not exist.' ) );
 
                $linea = apply_filters('pre_remote_source', $linea, $pagelinkedto);
 
@@ -5390,7 +5394,7 @@ class wp_xmlrpc_server extends IXR_Server {
                preg_match('|<title>([^<]*?)</title>|is', $linea, $matchtitle);
                $title = $matchtitle[1];
                if ( empty( $title ) )
-                       return new IXR_Error(32, __('We cannot find a title on that page.'));
+                       return $this->pingback_error( 32, __('We cannot find a title on that page.' ) );
 
                $linea = strip_tags( $linea, '<a>' ); // just keep the tag we need
 
@@ -5426,7 +5430,7 @@ class wp_xmlrpc_server extends IXR_Server {
                }
 
                if ( empty($context) ) // Link to target not found
-                       return new IXR_Error(17, __('The source URL does not contain a link to the target URL, and so cannot be used as a source.'));
+                       return $this->pingback_error( 17, __( 'The source URL does not contain a link to the target URL, and so cannot be used as a source.' ) );
 
                $pagelinkedfrom = str_replace('&', '&amp;', $pagelinkedfrom);
 
@@ -5473,14 +5477,14 @@ class wp_xmlrpc_server extends IXR_Server {
                $post_ID = url_to_postid($url);
                if ( !$post_ID ) {
                        // We aren't sure that the resource is available and/or pingback enabled
-                       return new IXR_Error(33, __('The specified target URL cannot be used as a target. It either doesn&#8217;t exist, or it is not a pingback-enabled resource.'));
+                       return $this->pingback_error( 33, __( 'The specified target URL cannot be used as a target. It either doesn&#8217;t exist, or it is not a pingback-enabled resource.' ) );
                }
 
                $actual_post = get_post($post_ID, ARRAY_A);
 
                if ( !$actual_post ) {
                        // No such post = resource not found
-                       return new IXR_Error(32, __('The specified target URL does not exist.'));
+                       return $this->pingback_error( 32, __('The specified target URL does not exist.' ) );
                }
 
                $comments = $wpdb->get_results( $wpdb->prepare("SELECT comment_author_url, comment_content, comment_author_IP, comment_type FROM $wpdb->comments WHERE comment_post_ID = %d", $post_ID) );
@@ -5496,4 +5500,8 @@ class wp_xmlrpc_server extends IXR_Server {
 
                return $pingbacks;
        }
+
+       protected function pingback_error( $code, $message ) {
+               return apply_filters( 'xmlrpc_pingback_error', new IXR_Error( $code, $message ) );
+       }
 }