'categoryDescription'] = $cat->description;
				$struct['categoryName'] = $cat->name;
				$struct['htmlUrl'] = esc_html(get_category_link($cat->term_id));
				$struct['rssUrl'] = esc_html(get_category_feed_link($cat->term_id, 'rss2'));

				$categories_struct[] = $struct;
			}
		}

		return $categories_struct;
	}

	/**
	 * Uploads a file, following your settings.
	 *
	 * Adapted from a patch by Johann Richard.
	 *
	 * @link http://mycvs.org/archives/2004/06/30/file-upload-to-wordpress-in-ecto/
	 *
	 * @since 1.5.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @param array  $args {
	 *     Method arguments. Note: arguments must be ordered as documented.
	 *
	 *     @type int    $blog_id (unused)
	 *     @type string $username
	 *     @type string $password
	 *     @type array  $data
	 * }
	 * @return array|IXR_Error
	 */
	public function mw_newMediaObject( $args ) {
		global $wpdb;

		$username = $this->escape( $args[1] );
		$password = $this->escape( $args[2] );
		$data     = $args[3];

		$name = sanitize_file_name( $data['name'] );
		$type = $data['type'];
		$bits = $data['bits'];

		if ( !$user = $this->login($username, $password) )
			return $this->error;

		/** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
		do_action( 'xmlrpc_call', 'metaWeblog.newMediaObject' );

		if ( !current_user_can('upload_files') ) {
			$this->error = new IXR_Error( 401, __( 'Sorry, you are not allowed to upload files.' ) );
			return $this->error;
		}

		if ( is_multisite() && upload_is_user_over_quota( false ) ) {
			$this->error = new IXR_Error( 401, __( 'Sorry, you have used your space allocation.' ) );
			return $this->error;
		}

		/**
		 * Filters whether to preempt the XML-RPC media upload.
		 *
		 * Passing a truthy value will effectively short-circuit the media upload,
		 * returning that value as a 500 error instead.
		 *
		 * @since 2.1.0
		 *
		 * @param bool $error Whether to pre-empt the media upload. Default false.
		 */
		if ( $upload_err = apply_filters( 'pre_upload_error', false ) ) {
			return new IXR_Error( 500, $upload_err );
		}

		$upload = wp_upload_bits($name, null, $bits);
		if ( ! empty($upload['error']) ) {
			/* translators: 1: file name, 2: error message */
			$errorString = sprintf( __( 'Could not write file %1$s (%2$s).' ), $name, $upload['error'] );
			return new IXR_Error( 500, $errorString );
		}
		// Construct the attachment array
		$post_id = 0;
		if ( ! empty( $data['post_id'] ) ) {
			$post_id = (int) $data['post_id'];

			if ( ! current_user_can( 'edit_post', $post_id ) )
				return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this post.' ) );
		}
		$attachment = array(
			'post_title' => $name,
			'post_content' => '',
			'post_type' => 'attachment',
			'post_parent' => $post_id,
			'post_mime_type' => $type,
			'guid' => $upload[ 'url' ]
		);

		// Save the data
		$id = wp_insert_attachment( $attachment, $upload[ 'file' ], $post_id );
		wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $upload['file'] ) );

		/**
		 * Fires after a new attachment has been added via the XML-RPC MovableType API.
		 *
		 * @since 3.4.0
		 *
		 * @param int   $id   ID of the new attachment.
		 * @param array $args An array of arguments to add the attachment.
		 */
		do_action( 'xmlrpc_call_success_mw_newMediaObject', $id, $args );

		$struct = $this->_prepare_media_item( get_post( $id ) );

		// Deprecated values
		$struct['id']   = $struct['attachment_id'];
		$struct['file'] = $struct['title'];
		$struct['url']  = $struct['link'];

		return $struct;
	}

	/* MovableType API functions
	 * specs on http://www.movabletype.org/docs/mtmanual_programmatic.html
	 */

	/**
	 * Retrieve the post titles of recent posts.
	 *
	 * @since 1.5.0
	 *
	 * @param array  $args {
	 *     Method arguments. Note: arguments must be ordered as documented.
	 *
	 *     @type int    $blog_id (unused)
	 *     @type string $username
	 *     @type string $password
	 *     @type int    $numberposts
	 * }
	 * @return array|IXR_Error
	 */
	public function mt_getRecentPostTitles( $args ) {
		$this->escape( $args );

		$username = $args[1];
		$password = $args[2];
		if ( isset( $args[3] ) )
			$query = array( 'numberposts' => absint( $args[3] ) );
		else
			$query = array();

		if ( !$user = $this->login($username, $password) )
			return $this->error;

		/** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
		do_action( 'xmlrpc_call', 'mt.getRecentPostTitles' );

		$posts_list = wp_get_recent_posts( $query );

		if ( !$posts_list ) {
			$this->error = new IXR_Error(500, __('Either there are no posts, or something went wrong.'));
			return $this->error;
		}

		$recent_posts = array();

		foreach ($posts_list as $entry) {
			if ( !current_user_can( 'edit_post', $entry['ID'] ) )
				continue;

			$post_date = $this->_convert_date( $entry['post_date'] );
			$post_date_gmt = $this->_convert_date_gmt( $entry['post_date_gmt'], $entry['post_date'] );

			$recent_posts[] = array(
				'dateCreated' => $post_date,
				'userid' => $entry['post_author'],
				'postid' => (string) $entry['ID'],
				'title' => $entry['post_title'],
				'post_status' => $entry['post_status'],
				'date_created_gmt' => $post_date_gmt
			);
		}

		return $recent_posts;
	}

	/**
	 * Retrieve list of all categories on blog.
	 *
	 * @since 1.5.0
	 *
	 * @param array  $args {
	 *     Method arguments. Note: arguments must be ordered as documented.
	 *
	 *     @type int    $blog_id (unused)
	 *     @type string $username
	 *     @type string $password
	 * }
	 * @return array|IXR_Error
	 */
	public function mt_getCategoryList( $args ) {
		$this->escape( $args );

		$username = $args[1];
		$password = $args[2];

		if ( !$user = $this->login($username, $password) )
			return $this->error;

		if ( !current_user_can( 'edit_posts' ) )
			return new IXR_Error( 401, __( 'Sorry, you must be able to edit posts on this site in order to view categories.' ) );

		/** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
		do_action( 'xmlrpc_call', 'mt.getCategoryList' );

		$categories_struct = array();

		if ( $cats = get_categories(array('hide_empty' => 0, 'hierarchical' => 0)) ) {
			foreach ( $cats as $cat ) {
				$struct = array();
				$struct['categoryId'] = $cat->term_id;
				$struct['categoryName'] = $cat->name;

				$categories_struct[] = $struct;
			}
		}

		return $categories_struct;
	}

	/**
	 * Retrieve post categories.
	 *
	 * @since 1.5.0
	 *
	 * @param array  $args {
	 *     Method arguments. Note: arguments must be ordered as documented.
	 *
	 *     @type int    $post_ID
	 *     @type string $username
	 *     @type string $password
	 * }
	 * @return array|IXR_Error
	 */
	public function mt_getPostCategories( $args ) {
		$this->escape( $args );

		$post_ID  = (int) $args[0];
		$username = $args[1];
		$password = $args[2];

		if ( !$user = $this->login($username, $password) )
			return $this->error;

		if ( ! get_post( $post_ID ) )
			return new IXR_Error( 404, __( 'Invalid post ID.' ) );

		if ( !current_user_can( 'edit_post', $post_ID ) )
			return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this post.' ) );

		/** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
		do_action( 'xmlrpc_call', 'mt.getPostCategories' );

		$categories = array();
		$catids = wp_get_post_categories(intval($post_ID));
		// first listed category will be the primary category
		$isPrimary = true;
		foreach ( $catids as $catid ) {
			$categories[] = array(
				'categoryName' => get_cat_name($catid),
				'categoryId' => (string) $catid,
				'isPrimary' => $isPrimary
			);
			$isPrimary = false;
		}

		return $categories;
	}

	/**
	 * Sets categories for a post.
	 *
	 * @since 1.5.0
	 *
	 * @param array  $args {
	 *     Method arguments. Note: arguments must be ordered as documented.
	 *
	 *     @type int    $post_ID
	 *     @type string $username
	 *     @type string $password
	 *     @type array  $categories
	 * }
	 * @return true|IXR_Error True on success.
	 */
	public function mt_setPostCategories( $args ) {
		$this->escape( $args );

		$post_ID    = (int) $args[0];
		$username   = $args[1];
		$password   = $args[2];
		$categories = $args[3];

		if ( !$user = $this->login($username, $password) )
			return $this->error;

		/** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
		do_action( 'xmlrpc_call', 'mt.setPostCategories' );

		if ( ! get_post( $post_ID ) )
			return new IXR_Error( 404, __( 'Invalid post ID.' ) );

		if ( !current_user_can('edit_post', $post_ID) )
			return new IXR_Error(401, __('Sorry, you are not allowed to edit this post.'));

		$catids = array();
		foreach ( $categories as $cat ) {
			$catids[] = $cat['categoryId'];
		}

		wp_set_post_categories($post_ID, $catids);

		return true;
	}

	/**
	 * Retrieve an array of methods supported by this server.
	 *
	 * @since 1.5.0
	 *
	 * @return array
	 */
	public function mt_supportedMethods() {
		/** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
		do_action( 'xmlrpc_call', 'mt.supportedMethods' );

		return array_keys( $this->methods );
	}

	/**
	 * Retrieve an empty array because we don't support per-post text filters.
	 *
	 * @since 1.5.0
	 */
	public function mt_supportedTextFilters() {
		/** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
		do_action( 'xmlrpc_call', 'mt.supportedTextFilters' );

		/**
		 * Filters the MoveableType text filters list for XML-RPC.
		 *
		 * @since 2.2.0
		 *
		 * @param array $filters An array of text filters.
		 */
		return apply_filters( 'xmlrpc_text_filters', array() );
	}

	/**
	 * Retrieve trackbacks sent to a given post.
	 *
	 * @since 1.5.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @param int $post_ID
	 * @return array|IXR_Error
	 */
	public function mt_getTrackbackPings( $post_ID ) {
		global $wpdb;

		/** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
		do_action( 'xmlrpc_call', 'mt.getTrackbackPings' );

		$actual_post = get_post($post_ID, ARRAY_A);

		if ( !$actual_post )
			return new IXR_Error(404, __('Sorry, no such post.'));

		$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) );

		if ( !$comments )
			return array();

		$trackback_pings = array();
		foreach ( $comments as $comment ) {
			if ( 'trackback' == $comment->comment_type ) {
				$content = $comment->comment_content;
				$title = substr($content, 8, (strpos($content, '</strong>') - 8));
				$trackback_pings[] = array(
					'pingTitle' => $title,
					'pingURL'   => $comment->comment_author_url,
					'pingIP'    => $comment->comment_author_IP
				);
			}
		}

		return $trackback_pings;
	}

	/**
	 * Sets a post's publish status to 'publish'.
	 *
	 * @since 1.5.0
	 *
	 * @param array  $args {
	 *     Method arguments. Note: arguments must be ordered as documented.
	 *
	 *     @type int    $post_ID
	 *     @type string $username
	 *     @type string $password
	 * }
	 * @return int|IXR_Error
	 */
	public function mt_publishPost( $args ) {
		$this->escape( $args );

		$post_ID  = (int) $args[0];
		$username = $args[1];
		$password = $args[2];

		if ( !$user = $this->login($username, $password) )
			return $this->error;

		/** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
		do_action( 'xmlrpc_call', 'mt.publishPost' );

		$postdata = get_post($post_ID, ARRAY_A);
		if ( ! $postdata )
			return new IXR_Error( 404, __( 'Invalid post ID.' ) );

		if ( !current_user_can('publish_posts') || !current_user_can('edit_post', $post_ID) )
			return new IXR_Error(401, __('Sorry, you are not allowed to publish this post.'));

		$postdata['post_status'] = 'publish';

		// retain old cats
		$cats = wp_get_post_categories($post_ID);
		$postdata['post_category'] = $cats;
		$this->escape($postdata);

		return wp_update_post( $postdata );
	}

	/* PingBack functions
	 * specs on www.hixie.ch/specs/pingback/pingback
	 */

	/**
	 * Retrieves a pingback and registers it.
	 *
	 * @since 1.5.0
	 *
	 * @param array  $args {
	 *     Method arguments. Note: arguments must be ordered as documented.
	 *
	 *     @type string $pagelinkedfrom
	 *     @type string $pagelinkedto
	 * }
	 * @return string|IXR_Error
	 */
	public function pingback_ping( $args ) {
		global $wpdb;

		/** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
		do_action( 'xmlrpc_call', 'pingback.ping' );

		$this->escape( $args );

		$pagelinkedfrom = str_replace( '&amp;', '&', $args[0] );
		$pagelinkedto = str_replace( '&amp;', '&', $args[1] );
		$pagelinkedto = str_replace( '&', '&amp;', $pagelinkedto );

		/**
		 * Filters the pingback source URI.
		 *
		 * @since 3.6.0
		 *
		 * @param string $pagelinkedfrom URI of the page linked from.
		 * @param string $pagelinkedto   URI of the page linked to.
		 */
		$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 $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?
		//        if so, then let's use it and drop the old code.
		$urltest = parse_url($pagelinkedto);
		if ( $post_ID = url_to_postid($pagelinkedto) ) {
			// $way
		} elseif ( isset( $urltest['path'] ) && preg_match('#p/[0-9]{1,}#', $urltest['path'], $match) ) {
			// the path defines the post_ID (archives/p/XXXX)
			$blah = explode('/', $match[0]);
			$post_ID = (int) $blah[1];
		} elseif ( isset( $urltest['query'] ) && preg_match('#p=[0-9]{1,}#', $urltest['query'], $match) ) {
			// the querystring defines the post_ID (?p=XXXX)
			$blah = explode('=', $match[0]);
			$post_ID = (int) $blah[1];
		} elseif ( isset($urltest['fragment']) ) {
			// an #anchor is there, it's either...
			if ( intval($urltest['fragment']) ) {
				// ...an integer #XXXX (simplest case)
				$post_ID = (int) $urltest['fragment'];
			} elseif ( preg_match('/post-[0-9]+/',$urltest['fragment']) ) {
				// ...a post id in the form 'post-###'
				$post_ID = preg_replace('/[^0-9]+/', '', $urltest['fragment']);
			} elseif ( is_string($urltest['fragment']) ) {
				// ...or a string #title, a little more complicated
				$title = preg_replace('/[^a-z0-9]/i', '.', $urltest['fragment']);
				$sql = $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_title RLIKE %s", $title );
				if (! ($post_ID = $wpdb->get_var($sql)) ) {
					// returning unknown error '0' is better than die()ing
			  		return $this->pingback_error( 0, '' );
				}
			}
		} else {
			// TODO: Attempt to extract a post ID from the given URL
	  		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.' ) );
		}
		$post_ID = (int) $post_ID;

		$post = get_post($post_ID);

		if ( !$post ) // Post_ID not found
	  		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.' ) );

		if ( $post_ID == url_to_postid($pagelinkedfrom) )
			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 $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.' ) );

		// 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 $this->pingback_error( 48, __( 'The pingback has already been registered.' ) );

		// very stupid, but gives time to the 'from' server to publish !
		sleep(1);

		$remote_ip = preg_replace( '/[^0-9a-fA-F:., ]/', '', $_SERVER['REMOTE_ADDR'] );

		/** This filter is documented in wp-includes/class-http.php */
		$user_agent = apply_filters( 'http_headers_useragent', 'WordPress/' . get_bloginfo( 'version' ) . '; ' . get_bloginfo( 'url' ) );

		// Let's check the remote site
		$http_api_args = array(
			'timeout' => 10,
			'redirection' => 0,
			'limit_response_size' => 153600, // 150 KB
			'user-agent' => "$user_agent; verifying pingback from $remote_ip",
			'headers' => array(
				'X-Pingback-Forwarded-For' => $remote_ip,
			),
		);

		$request = wp_safe_remote_get( $pagelinkedfrom, $http_api_args );
		$remote_source = $remote_source_original = wp_remote_retrieve_body( $request );

		if ( ! $remote_source ) {
			return $this->pingback_error( 16, __( 'The source URL does not exist.' ) );
		}

		/**
		 * Filters the pingback remote source.
		 *
		 * @since 2.5.0
		 *
		 * @param string $remote_source Response source for the page linked from.
		 * @param string $pagelinkedto  URL of the page linked to.
		 */
		$remote_source = apply_filters( 'pre_remote_source', $remote_source, $pagelinkedto );

		// Work around bug in strip_tags():
		$remote_source = str_replace( '<!DOC', '<DOC', $remote_source );
		$remote_source = preg_replace( '/[\r\n\t ]+/', ' ', $remote_source ); // normalize spaces
		$remote_source = preg_replace( "/<\/*(h1|h2|h3|h4|h5|h6|p|th|td|li|dt|dd|pre|caption|input|textarea|button|body)[^>]*>/", "\n\n", $remote_source );

		preg_match( '|<title>([^<]*?)</title>|is', $remote_source, $matchtitle );
		$title = isset( $matchtitle[1] ) ? $matchtitle[1] : '';
		if ( empty( $title ) ) {
			return $this->pingback_error( 32, __( 'We cannot find a title on that page.' ) );
		}

		$remote_source = strip_tags( $remote_source, '<a>' ); // just keep the tag we need

		$p = explode( "\n\n", $remote_source );

		$preg_target = preg_quote($pagelinkedto, '|');

		foreach ( $p as $para ) {
			if ( strpos($para, $pagelinkedto) !== false ) { // it exists, but is it a link?
				preg_match("|<a[^>]+?".$preg_target."[^>]*>([^>]+?)</a>|", $para, $context);

				// If the URL isn't in a link context, keep looking
				if ( empty($context) )
					continue;

				// We're going to use this fake tag to mark the context in a bit
				// the marker is needed in case the link text appears more than once in the paragraph
				$excerpt = preg_replace('|\</?wpcontext\>|', '', $para);

				// prevent really long link text
				if ( strlen($context[1]) > 100 )
					$context[1] = substr($context[1], 0, 100) . '&#8230;';

				$marker = '<wpcontext>'.$context[1].'</wpcontext>';    // set up our marker
				$excerpt= str_replace($context[0], $marker, $excerpt); // swap out the link for our marker
				$excerpt = strip_tags($excerpt, '<wpcontext>');        // strip all tags but our context marker
				$excerpt = trim($excerpt);
				$preg_marker = preg_quote($marker, '|');
				$excerpt = preg_replace("|.*?\s(.{0,100}$preg_marker.{0,100})\s.*|s", '$1', $excerpt);
				$excerpt = strip_tags($excerpt); // YES, again, to remove the marker wrapper
				break;
			}
		}

		if ( empty($context) ) // Link to target not found
			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);

		$context = '[&#8230;] ' . esc_html( $excerpt ) . ' [&#8230;]';
		$pagelinkedfrom = $this->escape( $pagelinkedfrom );

		$comment_post_ID = (int) $post_ID;
		$comment_author = $title;
		$comment_author_email = '';
		$this->escape($comment_author);
		$comment_author_url = $pagelinkedfrom;
		$comment_content = $context;
		$this->escape($comment_content);
		$comment_type = 'pingback';

		$commentdata = compact(
			'comment_post_ID', 'comment_author', 'comment_author_url', 'comment_author_email',
			'comment_content', 'comment_type', 'remote_source', 'remote_source_original'
		);

		$comment_ID = wp_new_comment($commentdata);

		/**
		 * Fires after a post pingback has been sent.
		 *
		 * @since 0.71
		 *
		 * @param int $comment_ID Comment ID.
		 */
		do_action( 'pingback_post', $comment_ID );

		/* translators: 1: URL of the page linked from, 2: URL of the page linked to */
		return sprintf( __( 'Pingback from %1$s to %2$s registered. Keep the web talking! :-)' ), $pagelinkedfrom, $pagelinkedto );
	}

	/**
	 * Retrieve array of URLs that pingbacked the given URL.
	 *
	 * Specs on http://www.aquarionics.com/misc/archives/blogite/0198.html
	 *
	 * @since 1.5.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @param string $url
	 * @return array|IXR_Error
	 */
	public function pingback_extensions_getPingbacks( $url ) {
		global $wpdb;

		/** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
		do_action( 'xmlrpc_call', 'pingback.extensions.getPingbacks' );

		$url = $this->escape( $url );

		$post_ID = url_to_postid($url);
		if ( !$post_ID ) {
			// We aren't sure that the resource is available and/or pingback enabled
	  		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 $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) );

		if ( !$comments )
			return array();

		$pingbacks = array();
		foreach ( $comments as $comment ) {
			if ( 'pingback' == $comment->comment_type )
				$pingbacks[] = $comment->comment_author_url;
		}

		return $pingbacks;
	}

	/**
	 * Sends a pingback error based on the given error code and message.
	 *
	 * @since 3.6.0
	 *
	 * @param int    $code    Error code.
	 * @param string $message Error message.
	 * @return IXR_Error Error object.
	 */
	protected function pingback_error( $code, $message ) {
		/**
		 * Filters the XML-RPC pingback error return.
		 *
		 * @since 3.5.1
		 *
		 * @param IXR_Error $error An IXR_Error object containing the error code and message.
		 */
		return apply_filters( 'xmlrpc_pingback_error', new IXR_Error( $code, $message ) );
	}
}