Ticket #22540: class-wp-xmlrpc-server.php

<?php
/**
 * XML-RPC protocol support for WordPress
 *
 * @package WordPress
 */

/**
 * WordPress XMLRPC server implementation.
 *
 * Implements compatibility for Blogger API, MetaWeblog API, MovableType, and
 * pingback. Additional WordPress API for managing comments, pages, posts,
 * options, etc.
 *
 * Since WordPress 2.6.0, WordPress XMLRPC server can be disabled in the
 * administration panels.
 *
 * @package WordPress
 * @subpackage Publishing
 * @since 1.5.0
 */
class wp_xmlrpc_server extends IXR_Server {

        /**
         * Register all of the XMLRPC methods that XMLRPC server understands.
         *
         * Sets up server and method property. Passes XMLRPC
         * methods through the 'xmlrpc_methods' filter to allow plugins to extend
         * or replace XMLRPC methods.
         *
         * @since 1.5.0
         *
         * @return wp_xmlrpc_server
         */
        function __construct() {
                $this->methods = array(
                        // WordPress API
                        'wp.getUsersBlogs'              => 'this:wp_getUsersBlogs',
                        'wp.newPost'                    => 'this:wp_newPost',
                        'wp.editPost'                   => 'this:wp_editPost',
                        'wp.deletePost'                 => 'this:wp_deletePost',
                        'wp.getPost'                    => 'this:wp_getPost',
                        'wp.getPosts'                   => 'this:wp_getPosts',
                        'wp.newTerm'                    => 'this:wp_newTerm',
                        'wp.editTerm'                   => 'this:wp_editTerm',
                        'wp.deleteTerm'                 => 'this:wp_deleteTerm',
                        'wp.getTerm'                    => 'this:wp_getTerm',
                        'wp.getTerms'                   => 'this:wp_getTerms',
                        'wp.getTaxonomy'                => 'this:wp_getTaxonomy',
                        'wp.getTaxonomies'              => 'this:wp_getTaxonomies',
                        'wp.getPage'                    => 'this:wp_getPage',
                        'wp.getPages'                   => 'this:wp_getPages',
                        'wp.newPage'                    => 'this:wp_newPage',
                        'wp.deletePage'                 => 'this:wp_deletePage',
                        'wp.editPage'                   => 'this:wp_editPage',
                        'wp.getPageList'                => 'this:wp_getPageList',
                        'wp.getAuthors'                 => 'this:wp_getAuthors',
                        'wp.getCategories'              => 'this:mw_getCategories',             // Alias
                        'wp.getTags'                    => 'this:wp_getTags',
                        'wp.newCategory'                => 'this:wp_newCategory',
                        'wp.deleteCategory'             => 'this:wp_deleteCategory',
                        'wp.suggestCategories'  => 'this:wp_suggestCategories',
                        'wp.uploadFile'                 => 'this:mw_newMediaObject',    // Alias
                        'wp.getCommentCount'    => 'this:wp_getCommentCount',
                        'wp.getPostStatusList'  => 'this:wp_getPostStatusList',
                        'wp.getPageStatusList'  => 'this:wp_getPageStatusList',
                        'wp.getPageTemplates'   => 'this:wp_getPageTemplates',
                        'wp.getOptions'                 => 'this:wp_getOptions',
                        'wp.setOptions'                 => 'this:wp_setOptions',
                        'wp.getComment'                 => 'this:wp_getComment',
                        'wp.getComments'                => 'this:wp_getComments',
                        'wp.deleteComment'              => 'this:wp_deleteComment',
                        'wp.editComment'                => 'this:wp_editComment',
                        'wp.newComment'                 => 'this:wp_newComment',
                        'wp.getCommentStatusList' => 'this:wp_getCommentStatusList',
                        'wp.getMediaItem'               => 'this:wp_getMediaItem',
                        'wp.getMediaLibrary'    => 'this:wp_getMediaLibrary',
                        'wp.getPostFormats'     => 'this:wp_getPostFormats',
                        'wp.getPostType'                => 'this:wp_getPostType',
                        'wp.getPostTypes'               => 'this:wp_getPostTypes',

                        // Blogger API
                        'blogger.getUsersBlogs' => 'this:blogger_getUsersBlogs',
                        'blogger.getUserInfo' => 'this:blogger_getUserInfo',
                        'blogger.getPost' => 'this:blogger_getPost',
                        'blogger.getRecentPosts' => 'this:blogger_getRecentPosts',
                        'blogger.getTemplate' => 'this:blogger_getTemplate',
                        'blogger.setTemplate' => 'this:blogger_setTemplate',
                        'blogger.newPost' => 'this:blogger_newPost',
                        'blogger.editPost' => 'this:blogger_editPost',
                        'blogger.deletePost' => 'this:blogger_deletePost',

                        // MetaWeblog API (with MT extensions to structs)
                        'metaWeblog.newPost' => 'this:mw_newPost',
                        'metaWeblog.editPost' => 'this:mw_editPost',
                        'metaWeblog.getPost' => 'this:mw_getPost',
                        'metaWeblog.getRecentPosts' => 'this:mw_getRecentPosts',
                        'metaWeblog.getCategories' => 'this:mw_getCategories',
                        'metaWeblog.newMediaObject' => 'this:mw_newMediaObject',

                        // MetaWeblog API aliases for Blogger API
                        // see http://www.xmlrpc.com/stories/storyReader$2460
                        'metaWeblog.deletePost' => 'this:blogger_deletePost',
                        'metaWeblog.getTemplate' => 'this:blogger_getTemplate',
                        'metaWeblog.setTemplate' => 'this:blogger_setTemplate',
                        'metaWeblog.getUsersBlogs' => 'this:blogger_getUsersBlogs',

                        // MovableType API
                        'mt.getCategoryList' => 'this:mt_getCategoryList',
                        'mt.getRecentPostTitles' => 'this:mt_getRecentPostTitles',
                        'mt.getPostCategories' => 'this:mt_getPostCategories',
                        'mt.setPostCategories' => 'this:mt_setPostCategories',
                        'mt.supportedMethods' => 'this:mt_supportedMethods',
                        'mt.supportedTextFilters' => 'this:mt_supportedTextFilters',
                        'mt.getTrackbackPings' => 'this:mt_getTrackbackPings',
                        'mt.publishPost' => 'this:mt_publishPost',

                        // PingBack
                        'pingback.ping' => 'this:pingback_ping',
                        'pingback.extensions.getPingbacks' => 'this:pingback_extensions_getPingbacks',

                        'demo.sayHello' => 'this:sayHello',
                        'demo.addTwoNumbers' => 'this:addTwoNumbers'
                );

                $this->initialise_blog_option_info();
                $this->methods = apply_filters('xmlrpc_methods', $this->methods);
        }

        function serve_request() {
                $this->IXR_Server($this->methods);
        }

        /**
         * Test XMLRPC API by saying, "Hello!" to client.
         *
         * @since 1.5.0
         *
         * @param array $args Method Parameters.
         * @return string
         */
        function sayHello($args) {
                return 'Hello!';
        }

        /**
         * Test XMLRPC API by adding two numbers for client.
         *
         * @since 1.5.0
         *
         * @param array $args Method Parameters.
         * @return int
         */
        function addTwoNumbers($args) {
                $number1 = $args[0];
                $number2 = $args[1];
                return $number1 + $number2;
        }

        /**
         * Check user's credentials.
         *
         * @since 1.5.0
         *
         * @param string $user_login User's username.
         * @param string $user_pass User's password.
         * @return bool Whether authentication passed.
         * @deprecated use wp_xmlrpc_server::login
         * @see wp_xmlrpc_server::login
         */
        function login_pass_ok($user_login, $user_pass) {
                if ( !get_option( 'enable_xmlrpc' ) ) {
                        $this->error = new IXR_Error( 405, sprintf( __( 'XML-RPC services are disabled on this site. An admin user can enable them at %s'),  admin_url('options-writing.php') ) );
                        return false;
                }

                if (!user_pass_ok($user_login, $user_pass)) {
                        $this->error = new IXR_Error(403, __('Bad login/pass combination.'));
                        return false;
                }
                return true;
        }

        /**
         * Log user in.
         *
         * @since 2.8
         *
         * @param string $username User's username.
         * @param string $password User's password.
         * @return mixed WP_User object if authentication passed, false otherwise
         */
        function login($username, $password) {
                if ( !get_option( 'enable_xmlrpc' ) ) {
                        $this->error = new IXR_Error( 405, sprintf( __( 'XML-RPC services are disabled on this site. An admin user can enable them at %s'),  admin_url('options-writing.php') ) );
                        return false;
                }

                $user = wp_authenticate($username, $password);

                if (is_wp_error($user)) {
                        $this->error = new IXR_Error(403, __('Bad login/pass combination.'));
                        return false;
                }

                wp_set_current_user( $user->ID );
                return $user;
        }

        /**
         * Sanitize string or array of strings for database.
         *
         * @since 1.5.2
         *
         * @param string|array $array Sanitize single string or array of strings.
         * @return string|array Type matches $array and sanitized for the database.
         */
        function escape(&$array) {
                global $wpdb;

                if (!is_array($array)) {
                        return($wpdb->escape($array));
                } else {
                        foreach ( (array) $array as $k => $v ) {
                                if ( is_array($v) ) {
                                        $this->escape($array[$k]);
                                } else if ( is_object($v) ) {
                                        //skip
                                } else {
                                        $array[$k] = $wpdb->escape($v);
                                }
                        }
                }
        }

        /**
         * Retrieve custom fields for post.
         *
         * @since 2.5.0
         *
         * @param int $post_id Post ID.
         * @return array Custom fields, if exist.
         */
        function get_custom_fields($post_id) {
                $post_id = (int) $post_id;

                $custom_fields = array();

                foreach ( (array) has_meta($post_id) as $meta ) {
                        // Don't expose protected fields.
                        if ( ! current_user_can( 'edit_post_meta', $post_id , $meta['meta_key'] ) )
                                continue;

                        $custom_fields[] = array(
                                "id"    => $meta['meta_id'],
                                "key"   => $meta['meta_key'],
                                "value" => $meta['meta_value']
                        );
                }

                return $custom_fields;
        }

        /**
         * Set custom fields for post.
         *
         * @since 2.5.0
         *
         * @param int $post_id Post ID.
         * @param array $fields Custom fields.
         */
        function set_custom_fields($post_id, $fields) {
                $post_id = (int) $post_id;

                foreach ( (array) $fields as $meta ) {
                        if ( isset($meta['id']) ) {
                                $meta['id'] = (int) $meta['id'];
                                $pmeta = get_metadata_by_mid( 'post', $meta['id'] );
                                if ( isset($meta['key']) ) {
                                        $meta['key'] = stripslashes( $meta['key'] );
                                        if ( $meta['key'] != $pmeta->meta_key )
                                                continue;
                                        $meta['value'] = stripslashes_deep( $meta['value'] );
                                        if ( current_user_can( 'edit_post_meta', $post_id, $meta['key'] ) )
                                                update_metadata_by_mid( 'post', $meta['id'], $meta['value'] );
                                } elseif ( current_user_can( 'delete_post_meta', $post_id, $pmeta->meta_key ) ) {
                                        delete_metadata_by_mid( 'post', $meta['id'] );
                                }
                        } elseif ( current_user_can( 'add_post_meta', $post_id, stripslashes( $meta['key'] ) ) ) {
                                add_post_meta( $post_id, $meta['key'], $meta['value'] );
                        }
                }
        }

        /**
         * Set up blog options property.
         *
         * Passes property through 'xmlrpc_blog_options' filter.
         *
         * @since 2.6.0
         */
        function initialise_blog_option_info() {
                global $wp_version;

                $this->blog_options = array(
                        // Read only options
                        'software_name'     => array(
                                'desc'          => __( 'Software Name' ),
                                'readonly'      => true,
                                'value'         => 'WordPress'
                        ),
                        'software_version'  => array(
                                'desc'          => __( 'Software Version' ),
                                'readonly'      => true,
                                'value'         => $wp_version
                        ),
                        'blog_url'          => array(
                                'desc'          => __( 'Site URL' ),
                                'readonly'      => true,
                                'option'        => 'siteurl'
                        ),
                        'image_default_link_type' => array(
                                'desc'          => __( 'Image default link type' ),
                                'readonly'      => true,
                                'option'        => 'image_default_link_type'
                        ),
                        'image_default_size' => array(
                                'desc'          => __( 'Image default size' ),
                                'readonly'      => true,
                                'option'        => 'image_default_size'
                        ),
                        'image_default_align' => array(
                                'desc'          => __( 'Image default align' ),
                                'readonly'      => true,
                                'option'        => 'image_default_align'
                        ),
                        'template'          => array(
                                'desc'          => __( 'Template' ),
                                'readonly'      => true,
                                'option'        => 'template'
                        ),
                        'stylesheet'        => array(
                                'desc'          => __( 'Stylesheet' ),
                                'readonly'      => true,
                                'option'        => 'stylesheet'
                        ),
                        'post_thumbnail'    => array(
                                'desc'          => __('Post Thumbnail'),
                                'readonly'      => true,
                                'value'         => current_theme_supports( 'post-thumbnails' )
                        ),

                        // Updatable options
                        'time_zone'         => array(
                                'desc'          => __( 'Time Zone' ),
                                'readonly'      => false,
                                'option'        => 'gmt_offset'
                        ),
                        'blog_title'        => array(
                                'desc'          => __( 'Site Title' ),
                                'readonly'      => false,
                                'option'        => 'blogname'
                        ),
                        'blog_tagline'      => array(
                                'desc'          => __( 'Site Tagline' ),
                                'readonly'      => false,
                                'option'        => 'blogdescription'
                        ),
                        'date_format'       => array(
                                'desc'          => __( 'Date Format' ),
                                'readonly'      => false,
                                'option'        => 'date_format'
                        ),
                        'time_format'       => array(
                                'desc'          => __( 'Time Format' ),
                                'readonly'      => false,
                                'option'        => 'time_format'
                        ),
                        'users_can_register' => array(
                                'desc'          => __( 'Allow new users to sign up' ),
                                'readonly'      => false,
                                'option'        => 'users_can_register'
                        ),
                        'thumbnail_size_w'  => array(
                                'desc'          => __( 'Thumbnail Width' ),
                                'readonly'      => false,
                                'option'        => 'thumbnail_size_w'
                        ),
                        'thumbnail_size_h'  => array(
                                'desc'          => __( 'Thumbnail Height' ),
                                'readonly'      => false,
                                'option'        => 'thumbnail_size_h'
                        ),
                        'thumbnail_crop'    => array(
                                'desc'          => __( 'Crop thumbnail to exact dimensions' ),
                                'readonly'      => false,
                                'option'        => 'thumbnail_crop'
                        ),
                        'medium_size_w'     => array(
                                'desc'          => __( 'Medium size image width' ),
                                'readonly'      => false,
                                'option'        => 'medium_size_w'
                        ),
                        'medium_size_h'     => array(
                                'desc'          => __( 'Medium size image height' ),
                                'readonly'      => false,
                                'option'        => 'medium_size_h'
                        ),
                        'large_size_w'      => array(
                                'desc'          => __( 'Large size image width' ),
                                'readonly'      => false,
                                'option'        => 'large_size_w'
                        ),
                        'large_size_h'      => array(
                                'desc'          => __( 'Large size image height' ),
                                'readonly'      => false,
                                'option'        => 'large_size_h'
                        ),
                        'default_comment_status' => array(
                                'desc'          => __( 'Allow people to post comments on new articles' ),
                                'readonly'      => false,
                                'option'        => 'default_comment_status'
                        ),
                        'default_ping_status' => array(
                                'desc'          => __( 'Allow link notifications from other blogs (pingbacks and trackbacks)' ),
                                'readonly'      => false,
                                'option'        => 'default_ping_status'
                        )
                );

                $this->blog_options = apply_filters( 'xmlrpc_blog_options', $this->blog_options );
        }

        /**
         * Retrieve the blogs of the user.
         *
         * @since 2.6.0
         *
         * @param array $args Method parameters. Contains:
         *  - username
         *  - password
         * @return array. Contains:
         *  - 'isAdmin'
         *  - 'url'
         *  - 'blogid'
         *  - 'blogName'
         *  - 'xmlrpc' - url of xmlrpc endpoint
         */
        function wp_getUsersBlogs( $args ) {
                global $current_site;
                // If this isn't on WPMU then just use blogger_getUsersBlogs
                if ( !is_multisite() ) {
                        array_unshift( $args, 1 );
                        return $this->blogger_getUsersBlogs( $args );
                }

                $this->escape( $args );

                $username = $args[0];
                $password = $args[1];

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

                do_action( 'xmlrpc_call', 'wp.getUsersBlogs' );

                $blogs = (array) get_blogs_of_user( $user->ID );
                $struct = array();

                foreach ( $blogs as $blog ) {
                        // Don't include blogs that aren't hosted at this site
                        if ( $blog->site_id != $current_site->id )
                                continue;

                        $blog_id = $blog->userblog_id;
                        switch_to_blog($blog_id);
                        $is_admin = current_user_can('manage_options');

                        $struct[] = array(
                                'isAdmin'               => $is_admin,
                                'url'                   => get_option( 'home' ) . '/',
                                'blogid'                => (string) $blog_id,
                                'blogName'              => get_option( 'blogname' ),
                                'xmlrpc'                => site_url( 'xmlrpc.php' )
                        );

                        restore_current_blog();
                }

                return $struct;
        }

        /**
         * Checks if the method received at least the minimum number of arguments.
         *
         * @since 3.4.0
         *
         * @param string|array $args Sanitize single string or array of strings.
         * @param int $count Minimum number of arguments.
         * @return boolean if $args contains at least $count arguments.
         */
        protected function minimum_args( $args, $count ) {
                if ( count( $args ) < $count ) {
                        $this->error = new IXR_Error( 400, __( 'Insufficient arguments passed to this XML-RPC method.' ) );
                        return false;
                }

                return true;
        }

        /**
         * Prepares taxonomy data for return in an XML-RPC object.
         *
         * @access protected
         *
         * @param object $taxonomy The unprepared taxonomy data
         * @param array $fields The subset of taxonomy fields to return
         * @return array The prepared taxonomy data
         */
        protected function _prepare_taxonomy( $taxonomy, $fields ) {
                $_taxonomy = array(
                        'name' => $taxonomy->name,
                        'label' => $taxonomy->label,
                        'hierarchical' => (bool) $taxonomy->hierarchical,
                        'public' => (bool) $taxonomy->public,
                        'show_ui' => (bool) $taxonomy->show_ui,
                        '_builtin' => (bool) $taxonomy->_builtin,
                );

                if ( in_array( 'labels', $fields ) )
                        $_taxonomy['labels'] = (array) $taxonomy->labels;

                if ( in_array( 'cap', $fields ) )
                        $_taxonomy['cap'] = (array) $taxonomy->cap;

                if ( in_array( 'object_type', $fields ) )
                        $_taxonomy['object_type'] = array_unique( (array) $taxonomy->object_type );

                return apply_filters( 'xmlrpc_prepare_taxonomy', $_taxonomy, $taxonomy, $fields );
        }

        /**
         * Prepares term data for return in an XML-RPC object.
         *
         * @access protected
         *
         * @param array|object $term The unprepared term data
         * @return array The prepared term data
         */
        protected function _prepare_term( $term ) {
                $_term = $term;
                if ( ! is_array( $_term) )
                        $_term = get_object_vars( $_term );

                // For Intergers which may be largeer than XMLRPC supports ensure we return strings.
                $_term['term_id'] = strval( $_term['term_id'] );
                $_term['term_group'] = strval( $_term['term_group'] );
                $_term['term_taxonomy_id'] = strval( $_term['term_taxonomy_id'] );
                $_term['parent'] = strval( $_term['parent'] );

                // Count we are happy to return as an Integer because people really shouldn't use Terms that much.
                $_term['count'] = intval( $_term['count'] );

                return apply_filters( 'xmlrpc_prepare_term', $_term, $term );
        }

        /**
         * Convert a WordPress date string to an IXR_Date object.
         *
         * @access protected
         *
         * @param string $date
         * @return IXR_Date
         */
        protected function _convert_date( $date ) {
                if ( $date === '0000-00-00 00:00:00' ) {
                        return new IXR_Date( '00000000T00:00:00Z' );
                }
                return new IXR_Date( mysql2date( 'Ymd\TH:i:s', $date, false ) );
        }

        /**
         * Convert a WordPress GMT date string to an IXR_Date object.
         *
         * @access protected
         *
         * @param string $date_gmt
         * @param string $date
         * @return IXR_Date
         */
        protected function _convert_date_gmt( $date_gmt, $date ) {
                if ( $date !== '0000-00-00 00:00:00' && $date_gmt === '0000-00-00 00:00:00' ) {
                        return new IXR_Date( get_gmt_from_date( mysql2date( 'Y-m-d H:i:s', $date, false ), 'Ymd\TH:i:s' ) );
                }
                return $this->_convert_date( $date_gmt );
        }

        /**
         * Prepares post data for return in an XML-RPC object.
         *
         * @access protected
         *
         * @param array $post The unprepared post data
         * @param array $fields The subset of post type fields to return
         * @return array The prepared post data
         */
        protected function _prepare_post( $post, $fields ) {
                // holds the data for this post. built up based on $fields
                $_post = array( 'post_id' => strval( $post['ID'] ) );

                // prepare common post fields
                $post_fields = array(
                        'post_title'        => $post['post_title'],
                        'post_date'         => $this->_convert_date( $post['post_date'] ),
                        'post_date_gmt'     => $this->_convert_date_gmt( $post['post_date_gmt'], $post['post_date'] ),
                        'post_modified'     => $this->_convert_date( $post['post_modified'] ),
                        'post_modified_gmt' => $this->_convert_date_gmt( $post['post_modified_gmt'], $post['post_modified'] ),
                        'post_status'       => $post['post_status'],
                        'post_type'         => $post['post_type'],
                        'post_name'         => $post['post_name'],
                        'post_author'       => $post['post_author'],
                        'post_password'     => $post['post_password'],
                        'post_excerpt'      => $post['post_excerpt'],
                        'post_content'      => wpautop($post['post_content']),
                        'post_parent'       => strval( $post['post_parent'] ),
                        'post_mime_type'    => $post['post_mime_type'],
                        'link'              => post_permalink( $post['ID'] ),
                        'guid'              => $post['guid'],
                        'menu_order'        => intval( $post['menu_order'] ),
                        'comment_status'    => $post['comment_status'],
                        'ping_status'       => $post['ping_status'],
                        'sticky'            => ( $post['post_type'] === 'post' && is_sticky( $post['ID'] ) ),
                );

                // Thumbnail
                $post_fields['post_thumbnail'] = array();
                $thumbnail_id = get_post_thumbnail_id( $post['ID'] );
                if ( $thumbnail_id ) {
                        $thumbnail_size = current_theme_supports('post-thumbnail') ? 'post-thumbnail' : 'thumbnail';
                        $post_fields['post_thumbnail'] = $this->_prepare_media_item( get_post( $thumbnail_id ), $thumbnail_size );
                }

                // Consider future posts as published
                if ( $post_fields['post_status'] === 'future' )
                        $post_fields['post_status'] = 'publish';

                // Fill in blank post format
                $post_fields['post_format'] = get_post_format( $post['ID'] );
                if ( empty( $post_fields['post_format'] ) )
                        $post_fields['post_format'] = 'standard';

                // Merge requested $post_fields fields into $_post
                if ( in_array( 'post', $fields ) ) {
                        $_post = array_merge( $_post, $post_fields );
                } else {
                        $requested_fields = array_intersect_key( $post_fields, array_flip( $fields ) );
                        $_post = array_merge( $_post, $requested_fields );
                }

                $all_taxonomy_fields = in_array( 'taxonomies', $fields );

                if ( $all_taxonomy_fields || in_array( 'terms', $fields ) ) {
                        $post_type_taxonomies = get_object_taxonomies( $post['post_type'], 'names' );
                        $terms = wp_get_object_terms( $post['ID'], $post_type_taxonomies );
                        $_post['terms'] = array();
                        foreach ( $terms as $term ) {
                                $_post['terms'][] = $this->_prepare_term( $term );
                        }
                }

                if ( in_array( 'custom_fields', $fields ) )
                        $_post['custom_fields'] = $this->get_custom_fields( $post['ID'] );

                if ( in_array( 'enclosure', $fields ) ) {
                        $_post['enclosure'] = array();
                        $enclosures = (array) get_post_meta( $post['ID'], 'enclosure' );
                        if ( ! empty( $enclosures ) ) {
                                $encdata = explode( "\n", $enclosures[0] );
                                $_post['enclosure']['url'] = trim( htmlspecialchars( $encdata[0] ) );
                                $_post['enclosure']['length'] = (int) trim( $encdata[1] );
                                $_post['enclosure']['type'] = trim( $encdata[2] );
                        }
                }

                return apply_filters( 'xmlrpc_prepare_post', $_post, $post, $fields );
        }

        /**
         * Prepares post data for return in an XML-RPC object.
         *
         * @access protected
         *
         * @param object $post_type Post type object
         * @param array $fields The subset of post fields to return
         * @return array The prepared post type data
         */
        protected function _prepare_post_type( $post_type, $fields ) {
                $_post_type = array(
                        'name' => $post_type->name,
                        'label' => $post_type->label,
                        'hierarchical' => (bool) $post_type->hierarchical,
                        'public' => (bool) $post_type->public,
                        'show_ui' => (bool) $post_type->show_ui,
                        '_builtin' => (bool) $post_type->_builtin,
                        'has_archive' => (bool) $post_type->has_archive,
                        'supports' => get_all_post_type_supports( $post_type->name ),
                );

                if ( in_array( 'labels', $fields ) ) {
                        $_post_type['labels'] = (array) $post_type->labels;
                }

                if ( in_array( 'cap', $fields ) ) {
                        $_post_type['cap'] = (array) $post_type->cap;
                        $_post_type['map_meta_cap'] = (bool) $post_type->map_meta_cap;
                }

                if ( in_array( 'menu', $fields ) ) {
                        $_post_type['menu_position'] = (int) $post_type->menu_position;
                        $_post_type['menu_icon'] = $post_type->menu_icon;
                        $_post_type['show_in_menu'] = (bool) $post_type->show_in_menu;
                }

                if ( in_array( 'taxonomies', $fields ) )
                        $_post_type['taxonomies'] = get_object_taxonomies( $post_type->name, 'names' );

                return apply_filters( 'xmlrpc_prepare_post_type', $_post_type, $post_type );
        }

        /**
         * Prepares media item data for return in an XML-RPC object.
         *
         * @access protected
         *
         * @param object $media_item The unprepared media item data
         * @param string $thumbnail_size The image size to use for the thumbnail URL
         * @return array The prepared media item data
         */
        protected function _prepare_media_item( $media_item, $thumbnail_size = 'thumbnail' ) {
                $_media_item = array(
                        'attachment_id'    => strval( $media_item->ID ),
                        'date_created_gmt' => $this->_convert_date_gmt( $media_item->post_date_gmt, $media_item->post_date ),
                        'parent'           => $media_item->post_parent,
                        'link'             => wp_get_attachment_url( $media_item->ID ),
                        'title'            => $media_item->post_title,
                        'caption'          => $media_item->post_excerpt,
                        'description'      => $media_item->post_content,
                        'metadata'         => wp_get_attachment_metadata( $media_item->ID ),
                );

                $thumbnail_src = image_downsize( $media_item->ID, $thumbnail_size );
                if ( $thumbnail_src )
                        $_media_item['thumbnail'] = $thumbnail_src[0];
                else
                        $_media_item['thumbnail'] = $_media_item['link'];

                return apply_filters( 'xmlrpc_prepare_media_item', $_media_item, $media_item, $thumbnail_size );
        }

        /**
         * Prepares page data for return in an XML-RPC object.
         *
         * @access protected
         *
         * @param object $page The unprepared page data
         * @return array The prepared page data
         */
        protected function _prepare_page( $page ) {
                // Get all of the page content and link.
                $full_page = get_extended( $page->post_content );
                $link = post_permalink( $page->ID );

                // Get info the page parent if there is one.
                $parent_title = "";
                if ( ! empty( $page->post_parent ) ) {
                        $parent = get_page( $page->post_parent );
                        $parent_title = $parent->post_title;
                }

                // Determine comment and ping settings.
                $allow_comments = comments_open( $page->ID ) ? 1 : 0;
                $allow_pings = pings_open( $page->ID ) ? 1 : 0;

                // Format page date.
                $page_date = $this->_convert_date( $page->post_date );
                $page_date_gmt = $this->_convert_date_gmt( $page->post_date_gmt, $page->post_date );

                // Pull the categories info together.
                $categories = array();
                foreach ( wp_get_post_categories( $page->ID ) as $cat_id ) {
                        $categories[] = get_cat_name( $cat_id );
                }

                // Get the author info.
                $author = get_userdata( $page->post_author );

                $page_template = get_page_template_slug( $page->ID );
                if ( empty( $page_template ) )
                        $page_template = 'default';

                $_page = array(
                        'dateCreated'            => $page_date,
                        'userid'                 => $page->post_author,
                        'page_id'                => $page->ID,
                        'page_status'            => $page->post_status,
                        'description'            => $full_page['main'],
                        'title'                  => $page->post_title,
                        'link'                   => $link,
                        'permaLink'              => $link,
                        'categories'             => $categories,
                        'excerpt'                => $page->post_excerpt,
                        'text_more'              => $full_page['extended'],
                        'mt_allow_comments'      => $allow_comments,
                        'mt_allow_pings'         => $allow_pings,
                        'wp_slug'                => $page->post_name,
                        'wp_password'            => $page->post_password,
                        'wp_author'              => $author->display_name,
                        'wp_page_parent_id'      => $page->post_parent,
                        'wp_page_parent_title'   => $parent_title,
                        'wp_page_order'          => $page->menu_order,
                        'wp_author_id'           => (string) $author->ID,
                        'wp_author_display_name' => $author->display_name,
                        'date_created_gmt'       => $page_date_gmt,
                        'custom_fields'          => $this->get_custom_fields( $page->ID ),
                        'wp_page_template'       => $page_template
                );

                return apply_filters( 'xmlrpc_prepare_page', $_page, $page );
        }

        /**
         * Prepares comment data for return in an XML-RPC object.
         *
         * @access protected
         *
         * @param object $comment The unprepared comment data
         * @return array The prepared comment data
         */
        protected function _prepare_comment( $comment ) {
                // Format page date.
                $comment_date = $this->_convert_date( $comment->comment_date );
                $comment_date_gmt = $this->_convert_date_gmt( $comment->comment_date_gmt, $comment->comment_date );

                if ( '0' == $comment->comment_approved )
                        $comment_status = 'hold';
                else if ( 'spam' == $comment->comment_approved )
                        $comment_status = 'spam';
                else if ( '1' == $comment->comment_approved )
                        $comment_status = 'approve';
                else
                        $comment_status = $comment->comment_approved;

                $_comment = array(
                        'date_created_gmt' => $comment_date_gmt,
                        'user_id'          => $comment->user_id,
                        'comment_id'       => $comment->comment_ID,
                        'parent'           => $comment->comment_parent,
                        'status'           => $comment_status,
                        'content'          => $comment->comment_content,
                        'link'             => get_comment_link($comment),
                        'post_id'          => $comment->comment_post_ID,
                        'post_title'       => get_the_title($comment->comment_post_ID),
                        'author'           => $comment->comment_author,
                        'author_url'       => $comment->comment_author_url,
                        'author_email'     => $comment->comment_author_email,
                        'author_ip'        => $comment->comment_author_IP,
                        'type'             => $comment->comment_type,
                );

                return apply_filters( 'xmlrpc_prepare_comment', $_comment, $comment );
        }

        /**
         * Create a new post for any registered post type.
         *
         * @since 3.4.0
         *
         * @param array $args Method parameters. Contains:
         *  - int     $blog_id
         *  - string  $username
         *  - string  $password
         *  - array   $content_struct
         *      $content_struct can contain:
         *      - post_type (default: 'post')
         *      - post_status (default: 'draft')
         *      - post_title
         *      - post_author
         *      - post_exerpt
         *      - post_content
         *      - post_date_gmt | post_date
         *      - post_format
         *      - post_password
         *      - comment_status - can be 'open' | 'closed'
         *      - ping_status - can be 'open' | 'closed'
         *      - sticky
         *      - post_thumbnail - ID of a media item to use as the post thumbnail/featured image
         *      - custom_fields - array, with each element containing 'key' and 'value'
         *      - terms - array, with taxonomy names as keys and arrays of term IDs as values
         *      - terms_names - array, with taxonomy names as keys and arrays of term names as values
         *      - enclosure
         *      - any other fields supported by wp_insert_post()
         * @return string post_id
         */
        function wp_newPost( $args ) {
                if ( ! $this->minimum_args( $args, 4 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $content_struct = $args[3];

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

                do_action( 'xmlrpc_call', 'wp.newPost' );

                unset( $content_struct['ID'] );

                return $this->_insert_post( $user, $content_struct );
        }

        /**
         * Helper method for filtering out elements from an array.
         *
         * @since 3.4.0
         *
         * @param int $count Number to compare to one.
         */
        private function _is_greater_than_one( $count ) {
                return $count > 1;
        }

        /**
         * Helper method for wp_newPost and wp_editPost, containing shared logic.
         *
         * @since 3.4.0
         * @uses wp_insert_post()
         *
         * @param WP_User $user The post author if post_author isn't set in $content_struct.
         * @param array $content_struct Post data to insert.
         */
        protected function _insert_post( $user, $content_struct ) {
                $defaults = array( 'post_status' => 'draft', 'post_type' => 'post', 'post_author' => 0,
                        'post_password' => '', 'post_excerpt' => '', 'post_content' => '', 'post_title' => '' );

                $post_data = wp_parse_args( $content_struct, $defaults );

                $post_type = get_post_type_object( $post_data['post_type'] );
                if ( ! $post_type )
                        return new IXR_Error( 403, __( 'Invalid post type' ) );

                $update = ! empty( $post_data['ID'] );

                if ( $update ) {
                        if ( ! get_post( $post_data['ID'] ) )
                                return new IXR_Error( 401, __( 'Invalid post ID.' ) );
                        if ( ! current_user_can( $post_type->cap->edit_post, $post_data['ID'] ) )
                                return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this post.' ) );
                        if ( $post_data['post_type'] != get_post_type( $post_data['ID'] ) )
                                return new IXR_Error( 401, __( 'The post type may not be changed.' ) );
                } else {
                        if ( ! current_user_can( $post_type->cap->edit_posts ) )
                                return new IXR_Error( 401, __( 'Sorry, you are not allowed to post on this site.' ) );
                }

                switch ( $post_data['post_status'] ) {
                        case 'draft':
                        case 'pending':
                                break;
                        case 'private':
                                if ( ! current_user_can( $post_type->cap->publish_posts ) )
                                        return new IXR_Error( 401, __( 'Sorry, you are not allowed to create private posts in this post type' ) );
                                break;
                        case 'publish':
                        case 'future':
                                if ( ! current_user_can( $post_type->cap->publish_posts ) )
                                        return new IXR_Error( 401, __( 'Sorry, you are not allowed to publish posts in this post type' ) );
                                break;
                        default:
                                $post_data['post_status'] = 'draft';
                        break;
                }

                if ( ! empty( $post_data['post_password'] ) && ! current_user_can( $post_type->cap->publish_posts ) )
                        return new IXR_Error( 401, __( 'Sorry, you are not allowed to create password protected posts in this post type' ) );

                $post_data['post_author'] = absint( $post_data['post_author'] );
                if ( ! empty( $post_data['post_author'] ) && $post_data['post_author'] != $user->ID ) {
                        if ( ! current_user_can( $post_type->cap->edit_others_posts ) )
                                return new IXR_Error( 401, __( 'You are not allowed to create posts as this user.' ) );

                        $author = get_userdata( $post_data['post_author'] );

                        if ( ! $author )
                                return new IXR_Error( 404, __( 'Invalid author ID.' ) );
                } else {
                        $post_data['post_author'] = $user->ID;
                }

                if ( isset( $post_data['comment_status'] ) && $post_data['comment_status'] != 'open' && $post_data['comment_status'] != 'closed' )
                        unset( $post_data['comment_status'] );

                if ( isset( $post_data['ping_status'] ) && $post_data['ping_status'] != 'open' && $post_data['ping_status'] != 'closed' )
                        unset( $post_data['ping_status'] );

                // Do some timestamp voodoo
                if ( ! empty( $post_data['post_date_gmt'] ) ) {
                        // We know this is supposed to be GMT, so we're going to slap that Z on there by force
                        $dateCreated = rtrim( $post_data['post_date_gmt']->getIso(), 'Z' ) . 'Z';
                } elseif ( ! empty( $post_data['post_date'] ) ) {
                        $dateCreated = $post_data['post_date']->getIso();
                }

                if ( ! empty( $dateCreated ) ) {
                        $post_data['post_date'] = get_date_from_gmt( iso8601_to_datetime( $dateCreated ) );
                        $post_data['post_date_gmt'] = iso8601_to_datetime( $dateCreated, 'GMT' );
                }

                if ( ! isset( $post_data['ID'] ) )
                        $post_data['ID'] = get_default_post_to_edit( $post_data['post_type'], true )->ID;
                $post_ID = $post_data['ID'];

                if ( $post_data['post_type'] == 'post' ) {
                        // Private and password-protected posts cannot be stickied.
                        if ( $post_data['post_status'] == 'private' || ! empty( $post_data['post_password'] ) ) {
                                // Error if the client tried to stick the post, otherwise, silently unstick.
                                if ( ! empty( $post_data['sticky'] ) )
                                        return new IXR_Error( 401, __( 'Sorry, you cannot stick a private post.' ) );
                                if ( $update )
                                        unstick_post( $post_ID );
                        } elseif ( isset( $post_data['sticky'] ) )  {
                                if ( ! current_user_can( $post_type->cap->edit_others_posts ) )
                                        return new IXR_Error( 401, __( 'Sorry, you are not allowed to stick this post.' ) );
                                if ( $post_data['sticky'] )
                                        stick_post( $post_ID );
                                else
                                        unstick_post( $post_ID );
                        }
                }

                if ( isset( $post_data['post_thumbnail'] ) ) {
                        // empty value deletes, non-empty value adds/updates
                        if ( ! $post_data['post_thumbnail'] )
                                delete_post_thumbnail( $post_ID );
                        elseif ( ! set_post_thumbnail( $post_ID, $post_data['post_thumbnail'] ) )
                                        return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
                        unset( $content_struct['post_thumbnail'] );
                }

                if ( isset( $post_data['custom_fields'] ) )
                        $this->set_custom_fields( $post_ID, $post_data['custom_fields'] );

                if ( isset( $post_data['terms'] ) || isset( $post_data['terms_names'] ) ) {
                        $post_type_taxonomies = get_object_taxonomies( $post_data['post_type'], 'objects' );

                        // accumulate term IDs from terms and terms_names
                        $terms = array();

                        // first validate the terms specified by ID
                        if ( isset( $post_data['terms'] ) && is_array( $post_data['terms'] ) ) {
                                $taxonomies = array_keys( $post_data['terms'] );

                                // validating term ids
                                foreach ( $taxonomies as $taxonomy ) {
                                        if ( ! array_key_exists( $taxonomy , $post_type_taxonomies ) )
                                                return new IXR_Error( 401, __( 'Sorry, one of the given taxonomies is not supported by the post type.' ) );

                                        if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->assign_terms ) )
                                                return new IXR_Error( 401, __( 'Sorry, you are not allowed to assign a term to one of the given taxonomies.' ) );

                                        $term_ids = $post_data['terms'][$taxonomy];
                                        foreach ( $term_ids as $term_id ) {
                                                $term = get_term_by( 'id', $term_id, $taxonomy );

                                                if ( ! $term )
                                                        return new IXR_Error( 403, __( 'Invalid term ID' ) );

                                                $terms[$taxonomy][] = (int) $term_id;
                                        }
                                }
                        }

                        // now validate terms specified by name
                        if ( isset( $post_data['terms_names'] ) && is_array( $post_data['terms_names'] ) ) {
                                $taxonomies = array_keys( $post_data['terms_names'] );

                                foreach ( $taxonomies as $taxonomy ) {
                                        if ( ! array_key_exists( $taxonomy , $post_type_taxonomies ) )
                                                return new IXR_Error( 401, __( 'Sorry, one of the given taxonomies is not supported by the post type.' ) );

                                        if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->assign_terms ) )
                                                return new IXR_Error( 401, __( 'Sorry, you are not allowed to assign a term to one of the given taxonomies.' ) );

                                        // for hierarchical taxonomies, we can't assign a term when multiple terms in the hierarchy share the same name
                                        $ambiguous_terms = array();
                                        if ( is_taxonomy_hierarchical( $taxonomy ) ) {
                                                $tax_term_names = get_terms( $taxonomy, array( 'fields' => 'names', 'hide_empty' => false ) );

                                                // count the number of terms with the same name
                                                $tax_term_names_count = array_count_values( $tax_term_names );

                                                // filter out non-ambiguous term names
                                                $ambiguous_tax_term_counts = array_filter( $tax_term_names_count, array( $this, '_is_greater_than_one') );

                                                $ambiguous_terms = array_keys( $ambiguous_tax_term_counts );
                                        }

                                        $term_names = $post_data['terms_names'][$taxonomy];
                                        foreach ( $term_names as $term_name ) {
                                                if ( in_array( $term_name, $ambiguous_terms ) )
                                                        return new IXR_Error( 401, __( 'Ambiguous term name used in a hierarchical taxonomy. Please use term ID instead.' ) );

                                                $term = get_term_by( 'name', $term_name, $taxonomy );

                                                if ( ! $term ) {
                                                        // term doesn't exist, so check that the user is allowed to create new terms
                                                        if ( ! current_user_can( $post_type_taxonomies[$taxonomy]->cap->edit_terms ) )
                                                                return new IXR_Error( 401, __( 'Sorry, you are not allowed to add a term to one of the given taxonomies.' ) );

                                                        // create the new term
                                                        $term_info = wp_insert_term( $term_name, $taxonomy );
                                                        if ( is_wp_error( $term_info ) )
                                                                return new IXR_Error( 500, $term_info->get_error_message() );

                                                        $terms[$taxonomy][] = (int) $term_info['term_id'];
                                                } else {
                                                        $terms[$taxonomy][] = (int) $term->term_id;
                                                }
                                        }
                                }
                        }

                        $post_data['tax_input'] = $terms;
                        unset( $post_data['terms'], $post_data['terms_names'] );
                } else {
                        // do not allow direct submission of 'tax_input', clients must use 'terms' and/or 'terms_names'
                        unset( $post_data['tax_input'], $post_data['post_category'], $post_data['tags_input'] );
                }

                if ( isset( $post_data['post_format'] ) ) {
                        $format = set_post_format( $post_ID, $post_data['post_format'] );

                        if ( is_wp_error( $format ) )
                                return new IXR_Error( 500, $format->get_error_message() );

                        unset( $post_data['post_format'] );
                }

                // Handle enclosures
                $enclosure = isset( $post_data['enclosure'] ) ? $post_data['enclosure'] : null;
                $this->add_enclosure_if_new( $post_ID, $enclosure );

                $this->attach_uploads( $post_ID, $post_data['post_content'] );

                $post_data = apply_filters( 'xmlrpc_wp_insert_post_data', $post_data, $content_struct );

                $post_ID = wp_insert_post( $post_data, true );
                if ( is_wp_error( $post_ID ) )
                        return new IXR_Error( 500, $post_ID->get_error_message() );

                if ( ! $post_ID )
                        return new IXR_Error( 401, __( 'Sorry, your entry could not be posted. Something wrong happened.' ) );

                return strval( $post_ID );
        }

        /**
         * Edit a post for any registered post type.
         *
         * The $content_struct parameter only needs to contain fields that
         * should be changed. All other fields will retain their existing values.
         *
         * @since 3.4.0
         *
         * @param array $args Method parameters. Contains:
         *  - int     $blog_id
         *  - string  $username
         *  - string  $password
         *  - int     $post_id
         *  - array   $content_struct
         * @return true on success
         */
        function wp_editPost( $args ) {
                if ( ! $this->minimum_args( $args, 5 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $post_id        = (int) $args[3];
                $content_struct = $args[4];

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

                do_action( 'xmlrpc_call', 'wp.editPost' );

                $post = get_post( $post_id, ARRAY_A );

                if ( empty( $post['ID'] ) )
                        return new IXR_Error( 404, __( 'Invalid post ID.' ) );

                // convert the date field back to IXR form
                $post['post_date'] = $this->_convert_date( $post['post_date'] );

                // ignore the existing GMT date if it is empty or a non-GMT date was supplied in $content_struct,
                // since _insert_post will ignore the non-GMT date if the GMT date is set
                if ( $post['post_date_gmt'] == '0000-00-00 00:00:00' || isset( $content_struct['post_date'] ) )
                        unset( $post['post_date_gmt'] );
                else
                        $post['post_date_gmt'] = $this->_convert_date( $post['post_date_gmt'] );

                $this->escape( $post );
                $merged_content_struct = array_merge( $post, $content_struct );

                $retval = $this->_insert_post( $user, $merged_content_struct );
                if ( $retval instanceof IXR_Error )
                        return $retval;

                return true;
        }

        /**
         * Delete a post for any registered post type.
         *
         * @since 3.4.0
         *
         * @uses wp_delete_post()
         * @param array $args Method parameters. Contains:
         *  - int     $blog_id
         *  - string  $username
         *  - string  $password
         *  - int     $post_id
         * @return true on success
         */
        function wp_deletePost( $args ) {
                if ( ! $this->minimum_args( $args, 4 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id    = (int) $args[0];
                $username   = $args[1];
                $password   = $args[2];
                $post_id    = (int) $args[3];

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

                do_action( 'xmlrpc_call', 'wp.deletePost' );

                $post = wp_get_single_post( $post_id, ARRAY_A );
                if ( empty( $post['ID'] ) )
                        return new IXR_Error( 404, __( 'Invalid post ID.' ) );

                $post_type = get_post_type_object( $post['post_type'] );
                if ( ! current_user_can( $post_type->cap->delete_post, $post_id ) )
                        return new IXR_Error( 401, __( 'Sorry, you are not allowed to delete this post.' ) );

                $result = wp_delete_post( $post_id );

                if ( ! $result )
                        return new IXR_Error( 500, __( 'The post cannot be deleted.' ) );

                return true;
        }

        /**
         * Retrieve a post.
         *
         * @since 3.4.0
         *
         * The optional $fields parameter specifies what fields will be included
         * in the response array. This should be a list of field names. 'post_id' will
         * always be included in the response regardless of the value of $fields.
         *
         * Instead of, or in addition to, individual field names, conceptual group
         * names can be used to specify multiple fields. The available conceptual
         * groups are 'post' (all basic fields), 'taxonomies', 'custom_fields',
         * and 'enclosure'.
         *
         * @uses wp_get_single_post()
         * @param array $args Method parameters. Contains:
         *  - int     $post_id
         *  - string  $username
         *  - string  $password
         *  - array   $fields optional
         * @return array contains (based on $fields parameter):
         *  - 'post_id'
         *  - 'post_title'
         *  - 'post_date'
         *  - 'post_date_gmt'
         *  - 'post_modified'
         *  - 'post_modified_gmt'
         *  - 'post_status'
         *  - 'post_type'
         *  - 'post_name'
         *  - 'post_author'
         *  - 'post_password'
         *  - 'post_excerpt'
         *  - 'post_content'
         *  - 'link'
         *  - 'comment_status'
         *  - 'ping_status'
         *  - 'sticky'
         *  - 'custom_fields'
         *  - 'terms'
         *  - 'categories'
         *  - 'tags'
         *  - 'enclosure'
         */
        function wp_getPost( $args ) {
                if ( ! $this->minimum_args( $args, 4 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id            = (int) $args[0];
                $username           = $args[1];
                $password           = $args[2];
                $post_id            = (int) $args[3];

                if ( isset( $args[4] ) )
                        $fields = $args[4];
                else
                        $fields = apply_filters( 'xmlrpc_default_post_fields', array( 'post', 'terms', 'custom_fields' ), 'wp.getPost' );

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

                do_action( 'xmlrpc_call', 'wp.getPost' );

                $post = wp_get_single_post( $post_id, ARRAY_A );

                if ( empty( $post['ID'] ) )
                        return new IXR_Error( 404, __( 'Invalid post ID.' ) );

                $post_type = get_post_type_object( $post['post_type'] );
                if ( ! current_user_can( $post_type->cap->edit_post, $post_id ) )
                        return new IXR_Error( 401, __( 'Sorry, you cannot edit this post.' ) );

                return $this->_prepare_post( $post, $fields );
        }

        /**
         * Retrieve posts.
         *
         * @since 3.4.0
         *
         * The optional $filter parameter modifies the query used to retrieve posts.
         * Accepted keys are 'post_type', 'post_status', 'number', 'offset',
         * 'orderby', and 'order',category
         *
         * The optional $fields parameter specifies what fields will be included
         * in the response array.
         *
         * @uses wp_get_recent_posts()
         * @see wp_getPost() for more on $fields
         * @see get_posts() for more on $filter values
         *
         * @param array $args Method parameters. Contains:
         *  - int     $blog_id
         *  - string  $username
         *  - string  $password
         *  - array   $filter optional
         *  - array   $fields optional
         * @return array contains a collection of posts.
         */
        function wp_getPosts( $args ) {
                if ( ! $this->minimum_args( $args, 3 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id    = (int) $args[0];
                $username   = $args[1];
                $password   = $args[2];
                $filter     = isset( $args[3] ) ? $args[3] : array();

                if ( isset( $args[4] ) )
                        $fields = $args[4];
                else
                        $fields = apply_filters( 'xmlrpc_default_post_fields', array( 'post', 'terms', 'custom_fields' ), 'wp.getPosts' );

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

                do_action( 'xmlrpc_call', 'wp.getPosts' );

                $query = array();

                if ( isset( $filter['post_type'] ) ) {
                        $post_type = get_post_type_object( $filter['post_type'] );
                        if ( ! ( (bool) $post_type ) )
                                return new IXR_Error( 403, __( 'The post type specified is not valid' ) );
                } else {
                        $post_type = get_post_type_object( 'post' );
                }

                if ( ! current_user_can( $post_type->cap->edit_posts ) )
                        return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit posts in this post type' ));

                $query['post_type'] = $post_type->name;
                
                if ( isset( $filter['category'] ) )
                        $query['category'] = $filter['category'];
                
                if ( isset( $filter['post_status'] ) )
                        $query['post_status'] = $filter['post_status'];

                if ( isset( $filter['number'] ) )
                        $query['numberposts'] = absint( $filter['number'] );

                if ( isset( $filter['offset'] ) )
                        $query['offset'] = absint( $filter['offset'] );

                if ( isset( $filter['orderby'] ) ) {
                        $query['orderby'] = $filter['orderby'];

                        if ( isset( $filter['order'] ) )
                                $query['order'] = $filter['order'];
                }

                $posts_list = wp_get_recent_posts( $query );

                if ( ! $posts_list )
                        return array();

                // holds all the posts data
                $struct = array();

                foreach ( $posts_list as $post ) {
                        $post_type = get_post_type_object( $post['post_type'] );
                        if ( ! current_user_can( $post_type->cap->edit_post, $post['ID'] ) )
                                continue;

                        $struct[] = $this->_prepare_post( $post, $fields );
                }

                return $struct;
        }

        /**
         * Create a new term.
         *
         * @since 3.4.0
         *
         * @uses wp_insert_term()
         * @param array $args Method parameters. Contains:
         *  - int     $blog_id
         *  - string  $username
         *  - string  $password
         *  - array   $content_struct
         *      The $content_struct must contain:
         *      - 'name'
         *      - 'taxonomy'
         *      Also, it can optionally contain:
         *      - 'parent'
         *      - 'description'
         *      - 'slug'
         * @return string term_id
         */
        function wp_newTerm( $args ) {
                if ( ! $this->minimum_args( $args, 4 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id            = (int) $args[0];
                $username           = $args[1];
                $password           = $args[2];
                $content_struct     = $args[3];

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

                do_action( 'xmlrpc_call', 'wp.newTerm' );

                if ( ! taxonomy_exists( $content_struct['taxonomy'] ) )
                        return new IXR_Error( 403, __( 'Invalid taxonomy' ) );

                $taxonomy = get_taxonomy( $content_struct['taxonomy'] );

                if ( ! current_user_can( $taxonomy->cap->manage_terms ) )
                        return new IXR_Error( 401, __( 'You are not allowed to create terms in this taxonomy.' ) );

                $taxonomy = (array) $taxonomy;

                // hold the data of the term
                $term_data = array();

                $term_data['name'] = trim( $content_struct['name'] );
                if ( empty( $term_data['name'] ) )
                        return new IXR_Error( 403, __( 'The term name cannot be empty.' ) );

                if ( isset( $content_struct['parent'] ) ) {
                        if ( ! $taxonomy['hierarchical'] )
                                return new IXR_Error( 403, __( 'This taxonomy is not hierarchical.' ) );

                        $parent_term_id = (int) $content_struct['parent'];
                        $parent_term = get_term( $parent_term_id , $taxonomy['name'] );

                        if ( is_wp_error( $parent_term ) )
                                return new IXR_Error( 500, $parent_term->get_error_message() );

                        if ( ! $parent_term )
                                return new IXR_Error( 403, __( 'Parent term does not exist.' ) );

                        $term_data['parent'] = $content_struct['parent'];
                }

                if ( isset( $content_struct['description'] ) )
                        $term_data['description'] = $content_struct['description'];

                if ( isset( $content_struct['slug'] ) )
                        $term_data['slug'] = $content_struct['slug'];

                $term = wp_insert_term( $term_data['name'] , $taxonomy['name'] , $term_data );

                if ( is_wp_error( $term ) )
                        return new IXR_Error( 500, $term->get_error_message() );

                if ( ! $term )
                        return new IXR_Error( 500, __( 'Sorry, your term could not be created. Something wrong happened.' ) );

                return strval( $term['term_id'] );
        }

        /**
         * Edit a term.
         *
         * @since 3.4.0
         *
         * @uses wp_update_term()
         * @param array $args Method parameters. Contains:
         *  - int     $blog_id
         *  - string  $username
         *  - string  $password
         *  - string  $term_id
         *  - array   $content_struct
         *      The $content_struct must contain:
         *      - 'taxonomy'
         *      Also, it can optionally contain:
         *      - 'name'
         *      - 'parent'
         *      - 'description'
         *      - 'slug'
         * @return bool True, on success.
         */
        function wp_editTerm( $args ) {
                if ( ! $this->minimum_args( $args, 5 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id            = (int) $args[0];
                $username           = $args[1];
                $password           = $args[2];
                $term_id            = (int) $args[3];
                $content_struct     = $args[4];

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

                do_action( 'xmlrpc_call', 'wp.editTerm' );

                if ( ! taxonomy_exists( $content_struct['taxonomy'] ) )
                        return new IXR_Error( 403, __( 'Invalid taxonomy' ) );

                $taxonomy = get_taxonomy( $content_struct['taxonomy'] );

                if ( ! current_user_can( $taxonomy->cap->edit_terms ) )
                        return new IXR_Error( 401, __( 'You are not allowed to edit terms in this taxonomy.' ) );

                $taxonomy = (array) $taxonomy;

                // hold the data of the term
                $term_data = array();

                $term = get_term( $term_id , $content_struct['taxonomy'] );

                if ( is_wp_error( $term ) )
                        return new IXR_Error( 500, $term->get_error_message() );

                if ( ! $term )
                        return new IXR_Error( 404, __( 'Invalid term ID' ) );

                if ( isset( $content_struct['name'] ) ) {
                        $term_data['name'] = trim( $content_struct['name'] );

                        if ( empty( $term_data['name'] ) )
                                return new IXR_Error( 403, __( 'The term name cannot be empty.' ) );
                }

                if ( isset( $content_struct['parent'] ) ) {
                        if ( ! $taxonomy['hierarchical'] )
                                return new IXR_Error( 403, __( "This taxonomy is not hierarchical so you can't set a parent." ) );

                        $parent_term_id = (int) $content_struct['parent'];
                        $parent_term = get_term( $parent_term_id , $taxonomy['name'] );

                        if ( is_wp_error( $parent_term ) )
                                return new IXR_Error( 500, $parent_term->get_error_message() );

                        if ( ! $parent_term )
                                return new IXR_Error( 403, __( 'Parent term does not exist.' ) );

                        $term_data['parent'] = $content_struct['parent'];
                }

                if ( isset( $content_struct['description'] ) )
                        $term_data['description'] = $content_struct['description'];

                if ( isset( $content_struct['slug'] ) )
                        $term_data['slug'] = $content_struct['slug'];

                $term = wp_update_term( $term_id , $taxonomy['name'] , $term_data );

                if ( is_wp_error( $term ) )
                        return new IXR_Error( 500, $term->get_error_message() );

                if ( ! $term )
                        return new IXR_Error( 500, __( 'Sorry, editing the term failed.' ) );

                return true;
        }

        /**
         * Delete a term.
         *
         * @since 3.4.0
         *
         * @uses wp_delete_term()
         * @param array $args Method parameters. Contains:
         *  - int     $blog_id
         *  - string  $username
         *  - string  $password
         *  - string  $taxnomy_name
         *  - string     $term_id
         * @return boolean|IXR_Error If it suceeded true else a reason why not
         */
        function wp_deleteTerm( $args ) {
                if ( ! $this->minimum_args( $args, 5 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id            = (int) $args[0];
                $username           = $args[1];
                $password           = $args[2];
                $taxonomy           = $args[3];
                $term_id            = (int) $args[4];

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

                do_action( 'xmlrpc_call', 'wp.deleteTerm' );

                if ( ! taxonomy_exists( $taxonomy ) )
                        return new IXR_Error( 403, __( 'Invalid taxonomy' ) );

                $taxonomy = get_taxonomy( $taxonomy );

                if ( ! current_user_can( $taxonomy->cap->delete_terms ) )
                        return new IXR_Error( 401, __( 'You are not allowed to delete terms in this taxonomy.' ) );

                $term = get_term( $term_id, $taxonomy->name );

                if ( is_wp_error( $term ) )
                        return new IXR_Error( 500, $term->get_error_message() );

                if ( ! $term )
                        return new IXR_Error( 404, __( 'Invalid term ID' ) );

                $result = wp_delete_term( $term_id, $taxonomy->name );

                if ( is_wp_error( $result ) )
                        return new IXR_Error( 500, $term->get_error_message() );

                if ( ! $result )
                        return new IXR_Error( 500, __( 'Sorry, deleting the term failed.' ) );

                return $result;
        }

        /**
         * Retrieve a term.
         *
         * @since 3.4.0
         *
         * @uses get_term()
         * @param array $args Method parameters. Contains:
         *  - int     $blog_id
         *  - string  $username
         *  - string  $password
         *  - string  $taxonomy
         *  - string  $term_id
         * @return array contains:
         *  - 'term_id'
         *  - 'name'
         *  - 'slug'
         *  - 'term_group'
         *  - 'term_taxonomy_id'
         *  - 'taxonomy'
         *  - 'description'
         *  - 'parent'
         *  - 'count'
         */
        function wp_getTerm( $args ) {
                if ( ! $this->minimum_args( $args, 5 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id            = (int) $args[0];
                $username           = $args[1];
                $password           = $args[2];
                $taxonomy           = $args[3];
                $term_id            = (int) $args[4];

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

                do_action( 'xmlrpc_call', 'wp.getTerm' );

                if ( ! taxonomy_exists( $taxonomy ) )
                        return new IXR_Error( 403, __( 'Invalid taxonomy' ) );

                $taxonomy = get_taxonomy( $taxonomy );

                if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
                        return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );

                $term = get_term( $term_id , $taxonomy->name, ARRAY_A );

                if ( is_wp_error( $term ) )
                        return new IXR_Error( 500, $term->get_error_message() );

                if ( ! $term )
                        return new IXR_Error( 404, __( 'Invalid term ID' ) );

                return $this->_prepare_term( $term );
        }

        /**
         * Retrieve all terms for a taxonomy.
         *
         * @since 3.4.0
         *
         * The optional $filter parameter modifies the query used to retrieve terms.
         * Accepted keys are 'number', 'offset', 'orderby', 'order', 'hide_empty', and 'search'.
         *
         * @uses get_terms()
         * @param array $args Method parameters. Contains:
         *  - int     $blog_id
         *  - string  $username
         *  - string  $password
         *  - string  $taxonomy
         *  - array   $filter optional
         * @return array terms
         */
        function wp_getTerms( $args ) {
                if ( ! $this->minimum_args( $args, 4 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $taxonomy       = $args[3];
                $filter         = isset( $args[4] ) ? $args[4] : array();

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

                do_action( 'xmlrpc_call', 'wp.getTerms' );

                if ( ! taxonomy_exists( $taxonomy ) )
                        return new IXR_Error( 403, __( 'Invalid taxonomy' ) );

                $taxonomy = get_taxonomy( $taxonomy );

                if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
                        return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );

                $query = array();

                if ( isset( $filter['number'] ) )
                        $query['number'] = absint( $filter['number'] );

                if ( isset( $filter['offset'] ) )
                        $query['offset'] = absint( $filter['offset'] );

                if ( isset( $filter['orderby'] ) ) {
                        $query['orderby'] = $filter['orderby'];

                        if ( isset( $filter['order'] ) )
                                $query['order'] = $filter['order'];
                }

                if ( isset( $filter['hide_empty'] ) )
                        $query['hide_empty'] = $filter['hide_empty'];
                else
                        $query['get'] = 'all';

                if ( isset( $filter['search'] ) )
                        $query['search'] = $filter['search'];

                $terms = get_terms( $taxonomy->name, $query );

                if ( is_wp_error( $terms ) )
                        return new IXR_Error( 500, $terms->get_error_message() );

                $struct = array();

                foreach ( $terms as $term ) {
                        $struct[] = $this->_prepare_term( $term );
                }

                return $struct;
        }

        /**
         * Retrieve a taxonomy.
         *
         * @since 3.4.0
         *
         * @uses get_taxonomy()
         * @param array $args Method parameters. Contains:
         *  - int     $blog_id
         *  - string  $username
         *  - string  $password
         *  - string  $taxonomy
         * @return array (@see get_taxonomy())
         */
        function wp_getTaxonomy( $args ) {
                if ( ! $this->minimum_args( $args, 4 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $taxonomy       = $args[3];

                if ( isset( $args[4] ) )
                        $fields = $args[4];
                else
                        $fields = apply_filters( 'xmlrpc_default_taxonomy_fields', array( 'labels', 'cap', 'object_type' ), 'wp.getTaxonomy' );

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

                do_action( 'xmlrpc_call', 'wp.getTaxonomy' );

                if ( ! taxonomy_exists( $taxonomy ) )
                        return new IXR_Error( 403, __( 'Invalid taxonomy' ) );

                $taxonomy = get_taxonomy( $taxonomy );

                if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
                        return new IXR_Error( 401, __( 'You are not allowed to assign terms in this taxonomy.' ) );

                return $this->_prepare_taxonomy( $taxonomy, $fields );
        }

        /**
         * Retrieve all taxonomies.
         *
         * @since 3.4.0
         *
         * @uses get_taxonomies()
         * @param array $args Method parameters. Contains:
         *  - int     $blog_id
         *  - string  $username
         *  - string  $password
         * @return array taxonomies
         */
        function wp_getTaxonomies( $args ) {
                if ( ! $this->minimum_args( $args, 3 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id            = (int) $args[0];
                $username           = $args[1];
                $password           = $args[2];
                $filter             = isset( $args[3] ) ? $args[3] : array( 'public' => true );

                if ( isset( $args[4] ) )
                        $fields = $args[4];
                else
                        $fields = apply_filters( 'xmlrpc_default_taxonomy_fields', array( 'labels', 'cap', 'object_type' ), 'wp.getTaxonomies' );

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

                do_action( 'xmlrpc_call', 'wp.getTaxonomies' );

                $taxonomies = get_taxonomies( $filter, 'objects' );

                // holds all the taxonomy data
                $struct = array();

                foreach ( $taxonomies as $taxonomy ) {
                        // capability check for post_types
                        if ( ! current_user_can( $taxonomy->cap->assign_terms ) )
                                continue;

                        $struct[] = $this->_prepare_taxonomy( $taxonomy, $fields );
                }

                return $struct;
        }

        /**
         * Retrieve page.
         *
         * @since 2.2.0
         *
         * @param array $args Method parameters. Contains:
         *  - blog_id
         *  - page_id
         *  - username
         *  - password
         * @return array
         */
        function wp_getPage($args) {
                $this->escape($args);

                $blog_id        = (int) $args[0];
                $page_id        = (int) $args[1];
                $username       = $args[2];
                $password       = $args[3];

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

                $page = get_page($page_id);
                if ( ! $page )
                        return new IXR_Error( 404, __( 'Invalid post ID.' ) );

                if ( !current_user_can( 'edit_page', $page_id ) )
                        return new IXR_Error( 401, __( 'Sorry, you cannot edit this page.' ) );

                do_action('xmlrpc_call', 'wp.getPage');

                // If we found the page then format the data.
                if ( $page->ID && ($page->post_type == 'page') ) {
                        return $this->_prepare_page( $page );
                }
                // If the page doesn't exist indicate that.
                else {
                        return(new IXR_Error(404, __('Sorry, no such page.')));
                }
        }

        /**
         * Retrieve Pages.
         *
         * @since 2.2.0
         *
         * @param array $args Method parameters. Contains:
         *  - blog_id
         *  - username
         *  - password
         *  - num_pages
         * @return array
         */
        function wp_getPages($args) {
                $this->escape($args);

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $num_pages      = isset($args[3]) ? (int) $args[3] : 10;

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

                if ( !current_user_can( 'edit_pages' ) )
                        return new IXR_Error( 401, __( 'Sorry, you cannot edit pages.' ) );

                do_action('xmlrpc_call', 'wp.getPages');

                $pages = get_posts( array('post_type' => 'page', 'post_status' => 'any', 'numberposts' => $num_pages) );
                $num_pages = count($pages);

                // If we have pages, put together their info.
                if ( $num_pages >= 1 ) {
                        $pages_struct = array();

                        foreach ($pages as $page) {
                                if ( current_user_can( 'edit_page', $page->ID ) )
                                        $pages_struct[] = $this->_prepare_page( $page );
                        }

                        return($pages_struct);
                }
                // If no pages were found return an error.
                else {
                        return(array());
                }
        }

        /**
         * Create new page.
         *
         * @since 2.2.0
         *
         * @param array $args Method parameters. See {@link wp_xmlrpc_server::mw_newPost()}
         * @return unknown
         */
        function wp_newPage($args) {
                // Items not escaped here will be escaped in newPost.
                $username       = $this->escape($args[1]);
                $password       = $this->escape($args[2]);
                $page           = $args[3];
                $publish        = $args[4];

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

                do_action('xmlrpc_call', 'wp.newPage');

                // Mark this as content for a page.
                $args[3]["post_type"] = 'page';

                // Let mw_newPost do all of the heavy lifting.
                return($this->mw_newPost($args));
        }

        /**
         * Delete page.
         *
         * @since 2.2.0
         *
         * @param array $args Method parameters.
         * @return bool True, if success.
         */
        function wp_deletePage($args) {
                $this->escape($args);

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $page_id        = (int) $args[3];

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

                do_action('xmlrpc_call', 'wp.deletePage');

                // Get the current page based on the page_id and
                // make sure it is a page and not a post.
                $actual_page = wp_get_single_post($page_id, ARRAY_A);
                if ( !$actual_page || ($actual_page['post_type'] != 'page') )
                        return(new IXR_Error(404, __('Sorry, no such page.')));

                // Make sure the user can delete pages.
                if ( !current_user_can('delete_page', $page_id) )
                        return(new IXR_Error(401, __('Sorry, you do not have the right to delete this page.')));

                // Attempt to delete the page.
                $result = wp_delete_post($page_id);
                if ( !$result )
                        return(new IXR_Error(500, __('Failed to delete the page.')));

                do_action( 'xmlrpc_call_success_wp_deletePage', $page_id, $args );

                return(true);
        }

        /**
         * Edit page.
         *
         * @since 2.2.0
         *
         * @param array $args Method parameters.
         * @return unknown
         */
        function wp_editPage($args) {
                // Items not escaped here will be escaped in editPost.
                $blog_id        = (int) $args[0];
                $page_id        = (int) $this->escape($args[1]);
                $username       = $this->escape($args[2]);
                $password       = $this->escape($args[3]);
                $content        = $args[4];
                $publish        = $args[5];

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

                do_action('xmlrpc_call', 'wp.editPage');

                // Get the page data and make sure it is a page.
                $actual_page = wp_get_single_post($page_id, ARRAY_A);
                if ( !$actual_page || ($actual_page['post_type'] != 'page') )
                        return(new IXR_Error(404, __('Sorry, no such page.')));

                // Make sure the user is allowed to edit pages.
                if ( !current_user_can('edit_page', $page_id) )
                        return(new IXR_Error(401, __('Sorry, you do not have the right to edit this page.')));

                // Mark this as content for a page.
                $content['post_type'] = 'page';

                // Arrange args in the way mw_editPost understands.
                $args = array(
                        $page_id,
                        $username,
                        $password,
                        $content,
                        $publish
                );

                // Let mw_editPost do all of the heavy lifting.
                return($this->mw_editPost($args));
        }

        /**
         * Retrieve page list.
         *
         * @since 2.2.0
         *
         * @param array $args Method parameters.
         * @return unknown
         */
        function wp_getPageList($args) {
                global $wpdb;

                $this->escape($args);

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

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

                if ( !current_user_can( 'edit_pages' ) )
                        return new IXR_Error( 401, __( 'Sorry, you cannot edit pages.' ) );

                do_action('xmlrpc_call', 'wp.getPageList');

                // Get list of pages ids and titles
                $page_list = $wpdb->get_results("
                        SELECT ID page_id,
                                post_title page_title,
                                post_parent page_parent_id,
                                post_date_gmt,
                                post_date,
                                post_status
                        FROM {$wpdb->posts}
                        WHERE post_type = 'page'
                        ORDER BY ID
                ");

                // The date needs to be formatted properly.
                $num_pages = count($page_list);
                for ( $i = 0; $i < $num_pages; $i++ ) {
                        $page_list[$i]->dateCreated = $this->_convert_date(  $page_list[$i]->post_date );
                        $page_list[$i]->date_created_gmt = $this->_convert_date_gmt( $page_list[$i]->post_date_gmt, $page_list[$i]->post_date );

                        unset($page_list[$i]->post_date_gmt);
                        unset($page_list[$i]->post_date);
                        unset($page_list[$i]->post_status);
                }

                return($page_list);
        }

        /**
         * Retrieve authors list.
         *
         * @since 2.2.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function wp_getAuthors($args) {

                $this->escape($args);

                $blog_id        = (int) $args[0];
                $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 cannot edit posts on this site.')));

                do_action('xmlrpc_call', 'wp.getAuthors');

                $authors = array();
                foreach ( get_users( array( 'fields' => array('ID','user_login','display_name') ) ) as $user ) {
                        $authors[] = array(
                                'user_id'       => $user->ID,
                                'user_login'    => $user->user_login,
                                'display_name'  => $user->display_name
                        );
                }

                return $authors;
        }

        /**
         * Get list of all tags
         *
         * @since 2.7.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function wp_getTags( $args ) {
                $this->escape( $args );

                $blog_id                = (int) $args[0];
                $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 tags.' ) );

                do_action( 'xmlrpc_call', 'wp.getKeywords' );

                $tags = array();

                if ( $all_tags = get_tags() ) {
                        foreach( (array) $all_tags as $tag ) {
                                $struct['tag_id']                       = $tag->term_id;
                                $struct['name']                         = $tag->name;
                                $struct['count']                        = $tag->count;
                                $struct['slug']                         = $tag->slug;
                                $struct['html_url']                     = esc_html( get_tag_link( $tag->term_id ) );
                                $struct['rss_url']                      = esc_html( get_tag_feed_link( $tag->term_id ) );

                                $tags[] = $struct;
                        }
                }

                return $tags;
        }

        /**
         * Create new category.
         *
         * @since 2.2.0
         *
         * @param array $args Method parameters.
         * @return int Category ID.
         */
        function wp_newCategory($args) {
                $this->escape($args);

                $blog_id                                = (int) $args[0];
                $username                               = $args[1];
                $password                               = $args[2];
                $category                               = $args[3];

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

                do_action('xmlrpc_call', 'wp.newCategory');

                // Make sure the user is allowed to add a category.
                if ( !current_user_can('manage_categories') )
                        return(new IXR_Error(401, __('Sorry, you do not have the right to add a category.')));

                // If no slug was provided make it empty so that
                // WordPress will generate one.
                if ( empty($category['slug']) )
                        $category['slug'] = '';

                // If no parent_id was provided make it empty
                // so that it will be a top level page (no parent).
                if ( !isset($category['parent_id']) )
                        $category['parent_id'] = '';

                // If no description was provided make it empty.
                if ( empty($category["description"]) )
                        $category["description"] = "";

                $new_category = array(
                        'cat_name'                              => $category['name'],
                        'category_nicename'             => $category['slug'],
                        'category_parent'               => $category['parent_id'],
                        'category_description'  => $category['description']
                );

                $cat_id = wp_insert_category($new_category, true);
                if ( is_wp_error( $cat_id ) ) {
                        if ( 'term_exists' == $cat_id->get_error_code() )
                                return (int) $cat_id->get_error_data();
                        else
                                return(new IXR_Error(500, __('Sorry, the new category failed.')));
                } elseif ( ! $cat_id ) {
                        return(new IXR_Error(500, __('Sorry, the new category failed.')));
                }

                do_action( 'xmlrpc_call_success_wp_newCategory', $cat_id, $args );

                return $cat_id;
        }

        /**
         * Remove category.
         *
         * @since 2.5.0
         *
         * @param array $args Method parameters.
         * @return mixed See {@link wp_delete_term()} for return info.
         */
        function wp_deleteCategory($args) {
                $this->escape($args);

                $blog_id                = (int) $args[0];
                $username               = $args[1];
                $password               = $args[2];
                $category_id    = (int) $args[3];

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

                do_action('xmlrpc_call', 'wp.deleteCategory');

                if ( !current_user_can('manage_categories') )
                        return new IXR_Error( 401, __( 'Sorry, you do not have the right to delete a category.' ) );

                $status = wp_delete_term( $category_id, 'category' );

                if( true == $status )
                        do_action( 'xmlrpc_call_success_wp_deleteCategory', $category_id, $args );

                return $status;
        }

        /**
         * Retrieve category list.
         *
         * @since 2.2.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function wp_suggestCategories($args) {
                $this->escape($args);

                $blog_id                                = (int) $args[0];
                $username                               = $args[1];
                $password                               = $args[2];
                $category                               = $args[3];
                $max_results                    = (int) $args[4];

                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 to this site in order to view categories.' ) );

                do_action('xmlrpc_call', 'wp.suggestCategories');

                $category_suggestions = array();
                $args = array('get' => 'all', 'number' => $max_results, 'name__like' => $category);
                foreach ( (array) get_categories($args) as $cat ) {
                        $category_suggestions[] = array(
                                'category_id'   => $cat->term_id,
                                'category_name' => $cat->name
                        );
                }

                return($category_suggestions);
        }

        /**
         * Retrieve comment.
         *
         * @since 2.7.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function wp_getComment($args) {
                $this->escape($args);

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $comment_id     = (int) $args[3];

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

                if ( !current_user_can( 'moderate_comments' ) )
                        return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );

                do_action('xmlrpc_call', 'wp.getComment');

                if ( ! $comment = get_comment($comment_id) )
                        return new IXR_Error( 404, __( 'Invalid comment ID.' ) );

                return $this->_prepare_comment( $comment );
        }

        /**
         * Retrieve comments.
         *
         * Besides the common blog_id, username, and password arguments, it takes a filter
         * array as last argument.
         *
         * Accepted 'filter' keys are 'status', 'post_id', 'offset', and 'number'.
         *
         * The defaults are as follows:
         * - 'status' - Default is ''. Filter by status (e.g., 'approve', 'hold')
         * - 'post_id' - Default is ''. The post where the comment is posted. Empty string shows all comments.
         * - 'number' - Default is 10. Total number of media items to retrieve.
         * - 'offset' - Default is 0. See {@link WP_Query::query()} for more.
         *
         * @since 2.7.0
         *
         * @param array $args Method parameters.
         * @return array. Contains a collection of comments. See {@link wp_xmlrpc_server::wp_getComment()} for a description of each item contents
         */
        function wp_getComments($args) {
                $this->escape($args);

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $struct         = isset( $args[3] ) ? $args[3] : array();

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

                if ( !current_user_can( 'moderate_comments' ) )
                        return new IXR_Error( 401, __( 'Sorry, you cannot edit comments.' ) );

                do_action('xmlrpc_call', 'wp.getComments');

                if ( isset($struct['status']) )
                        $status = $struct['status'];
                else
                        $status = '';

                $post_id = '';
                if ( isset($struct['post_id']) )
                        $post_id = absint($struct['post_id']);

                $offset = 0;
                if ( isset($struct['offset']) )
                        $offset = absint($struct['offset']);

                $number = 10;
                if ( isset($struct['number']) )
                        $number = absint($struct['number']);

                $comments = get_comments( array('status' => $status, 'post_id' => $post_id, 'offset' => $offset, 'number' => $number ) );

                $comments_struct = array();

                foreach ( $comments as $comment ) {
                        $comments_struct[] = $this->_prepare_comment( $comment );
                }

                return $comments_struct;
        }

        /**
         * Delete a comment.
         *
         * By default, the comment will be moved to the trash instead of deleted.
         * See {@link wp_delete_comment()} for more information on
         * this behavior.
         *
         * @since 2.7.0
         *
         * @param array $args Method parameters. Contains:
         *  - blog_id
         *  - username
         *  - password
         *  - comment_id
         * @return mixed {@link wp_delete_comment()}
         */
        function wp_deleteComment($args) {
                $this->escape($args);

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $comment_ID     = (int) $args[3];

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

                if ( !current_user_can( 'moderate_comments' ) )
                        return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );

                if ( ! get_comment($comment_ID) )
                        return new IXR_Error( 404, __( 'Invalid comment ID.' ) );

                if ( !current_user_can( 'edit_comment', $comment_ID ) )
                        return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );

                do_action('xmlrpc_call', 'wp.deleteComment');

                $status = wp_delete_comment( $comment_ID );

                if( true == $status )
                        do_action( 'xmlrpc_call_success_wp_deleteComment', $comment_ID, $args );

                return $status;
        }

        /**
         * Edit comment.
         *
         * Besides the common blog_id, username, and password arguments, it takes a
         * comment_id integer and a content_struct array as last argument.
         *
         * The allowed keys in the content_struct array are:
         *  - 'author'
         *  - 'author_url'
         *  - 'author_email'
         *  - 'content'
         *  - 'date_created_gmt'
         *  - 'status'. Common statuses are 'approve', 'hold', 'spam'. See {@link get_comment_statuses()} for more details
         *
         * @since 2.7.0
         *
         * @param array $args. Contains:
         *  - blog_id
         *  - username
         *  - password
         *  - comment_id
         *  - content_struct
         * @return bool True, on success.
         */
        function wp_editComment($args) {
                $this->escape($args);

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $comment_ID     = (int) $args[3];
                $content_struct = $args[4];

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

                if ( !current_user_can( 'moderate_comments' ) )
                        return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );

                if ( ! get_comment($comment_ID) )
                        return new IXR_Error( 404, __( 'Invalid comment ID.' ) );

                if ( !current_user_can( 'edit_comment', $comment_ID ) )
                        return new IXR_Error( 403, __( 'You are not allowed to moderate comments on this site.' ) );

                do_action('xmlrpc_call', 'wp.editComment');

                if ( isset($content_struct['status']) ) {
                        $statuses = get_comment_statuses();
                        $statuses = array_keys($statuses);

                        if ( ! in_array($content_struct['status'], $statuses) )
                                return new IXR_Error( 401, __( 'Invalid comment status.' ) );
                        $comment_approved = $content_struct['status'];
                }

                // Do some timestamp voodoo
                if ( !empty( $content_struct['date_created_gmt'] ) ) {
                        // We know this is supposed to be GMT, so we're going to slap that Z on there by force
                        $dateCreated = rtrim( $content_struct['date_created_gmt']->getIso(), 'Z' ) . 'Z';
                        $comment_date = get_date_from_gmt(iso8601_to_datetime($dateCreated));
                        $comment_date_gmt = iso8601_to_datetime($dateCreated, 'GMT');
                }

                if ( isset($content_struct['content']) )
                        $comment_content = $content_struct['content'];

                if ( isset($content_struct['author']) )
                        $comment_author = $content_struct['author'];

                if ( isset($content_struct['author_url']) )
                        $comment_author_url = $content_struct['author_url'];

                if ( isset($content_struct['author_email']) )
                        $comment_author_email = $content_struct['author_email'];

                // We've got all the data -- post it:
                $comment = compact('comment_ID', 'comment_content', 'comment_approved', 'comment_date', 'comment_date_gmt', 'comment_author', 'comment_author_email', 'comment_author_url');

                $result = wp_update_comment($comment);
                if ( is_wp_error( $result ) )
                        return new IXR_Error(500, $result->get_error_message());

                if ( !$result )
                        return new IXR_Error(500, __('Sorry, the comment could not be edited. Something wrong happened.'));

                do_action( 'xmlrpc_call_success_wp_editComment', $comment_ID, $args );

                return true;
        }

        /**
         * Create new comment.
         *
         * @since 2.7.0
         *
         * @param array $args Method parameters.
         * @return mixed {@link wp_new_comment()}
         */
        function wp_newComment($args) {
                global $wpdb;

                $this->escape($args);

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $post           = $args[3];
                $content_struct = $args[4];

                $allow_anon = apply_filters('xmlrpc_allow_anonymous_comments', false);

                $user = $this->login($username, $password);

                if ( !$user ) {
                        $logged_in = false;
                        if ( $allow_anon && get_option('comment_registration') )
                                return new IXR_Error( 403, __( 'You must be registered to comment' ) );
                        else if ( !$allow_anon )
                                return $this->error;
                } else {
                        $logged_in = true;
                }

                if ( is_numeric($post) )
                        $post_id = absint($post);
                else
                        $post_id = url_to_postid($post);

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

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

                $comment['comment_post_ID'] = $post_id;

                if ( $logged_in ) {
                        $comment['comment_author'] = $wpdb->escape( $user->display_name );
                        $comment['comment_author_email'] = $wpdb->escape( $user->user_email );
                        $comment['comment_author_url'] = $wpdb->escape( $user->user_url );
                        $comment['user_ID'] = $user->ID;
                } else {
                        $comment['comment_author'] = '';
                        if ( isset($content_struct['author']) )
                                $comment['comment_author'] = $content_struct['author'];

                        $comment['comment_author_email'] = '';
                        if ( isset($content_struct['author_email']) )
                                $comment['comment_author_email'] = $content_struct['author_email'];

                        $comment['comment_author_url'] = '';
                        if ( isset($content_struct['author_url']) )
                                $comment['comment_author_url'] = $content_struct['author_url'];

                        $comment['user_ID'] = 0;

                        if ( get_option('require_name_email') ) {
                                if ( 6 > strlen($comment['comment_author_email']) || '' == $comment['comment_author'] )
                                        return new IXR_Error( 403, __( 'Comment author name and email are required' ) );
                                elseif ( !is_email($comment['comment_author_email']) )
                                        return new IXR_Error( 403, __( 'A valid email address is required' ) );
                        }
                }

                $comment['comment_parent'] = isset($content_struct['comment_parent']) ? absint($content_struct['comment_parent']) : 0;

                $comment['comment_content'] =  isset($content_struct['content']) ? $content_struct['content'] : null;

                do_action('xmlrpc_call', 'wp.newComment');

                $comment_ID = wp_new_comment( $comment );

                do_action( 'xmlrpc_call_success_wp_newComment', $comment_ID, $args );

                return $comment_ID;
        }

        /**
         * Retrieve all of the comment status.
         *
         * @since 2.7.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function wp_getCommentStatusList($args) {
                $this->escape( $args );

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

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

                if ( !current_user_can( 'moderate_comments' ) )
                        return new IXR_Error( 403, __( 'You are not allowed access to details about this site.' ) );

                do_action('xmlrpc_call', 'wp.getCommentStatusList');

                return get_comment_statuses();
        }

        /**
         * Retrieve comment count.
         *
         * @since 2.5.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function wp_getCommentCount( $args ) {
                $this->escape($args);

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $post_id        = (int) $args[3];

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

                if ( !current_user_can( 'edit_posts' ) )
                        return new IXR_Error( 403, __( 'You are not allowed access to details about comments.' ) );

                do_action('xmlrpc_call', 'wp.getCommentCount');

                $count = wp_count_comments( $post_id );
                return array(
                        'approved' => $count->approved,
                        'awaiting_moderation' => $count->moderated,
                        'spam' => $count->spam,
                        'total_comments' => $count->total_comments
                );
        }

        /**
         * Retrieve post statuses.
         *
         * @since 2.5.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function wp_getPostStatusList( $args ) {
                $this->escape( $args );

                $blog_id        = (int) $args[0];
                $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( 403, __( 'You are not allowed access to details about this site.' ) );

                do_action('xmlrpc_call', 'wp.getPostStatusList');

                return get_post_statuses();
        }

        /**
         * Retrieve page statuses.
         *
         * @since 2.5.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function wp_getPageStatusList( $args ) {
                $this->escape( $args );

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

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

                if ( !current_user_can( 'edit_pages' ) )
                        return new IXR_Error( 403, __( 'You are not allowed access to details about this site.' ) );

                do_action('xmlrpc_call', 'wp.getPageStatusList');

                return get_page_statuses();
        }

        /**
         * Retrieve page templates.
         *
         * @since 2.6.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function wp_getPageTemplates( $args ) {
                $this->escape( $args );

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

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

                if ( !current_user_can( 'edit_pages' ) )
                        return new IXR_Error( 403, __( 'You are not allowed access to details about this site.' ) );

                $templates = get_page_templates();
                $templates['Default'] = 'default';

                return $templates;
        }

        /**
         * Retrieve blog options.
         *
         * @since 2.6.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function wp_getOptions( $args ) {
                $this->escape( $args );

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $options        = isset( $args[3] ) ? (array) $args[3] : array();

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

                // If no specific options where asked for, return all of them
                if ( count( $options ) == 0 )
                        $options = array_keys($this->blog_options);

                return $this->_getOptions($options);
        }

        /**
         * Retrieve blog options value from list.
         *
         * @since 2.6.0
         *
         * @param array $options Options to retrieve.
         * @return array
         */
        function _getOptions($options) {
                $data = array();
                foreach ( $options as $option ) {
                        if ( array_key_exists( $option, $this->blog_options ) ) {
                                $data[$option] = $this->blog_options[$option];
                                //Is the value static or dynamic?
                                if ( isset( $data[$option]['option'] ) ) {
                                        $data[$option]['value'] = get_option( $data[$option]['option'] );
                                        unset($data[$option]['option']);
                                }
                        }
                }

                return $data;
        }

        /**
         * Update blog options.
         *
         * @since 2.6.0
         *
         * @param array $args Method parameters.
         * @return unknown
         */
        function wp_setOptions( $args ) {
                $this->escape( $args );

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $options        = (array) $args[3];

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

                if ( !current_user_can( 'manage_options' ) )
                        return new IXR_Error( 403, __( 'You are not allowed to update options.' ) );

                foreach ( $options as $o_name => $o_value ) {
                        $option_names[] = $o_name;
                        if ( !array_key_exists( $o_name, $this->blog_options ) )
                                continue;

                        if ( $this->blog_options[$o_name]['readonly'] == true )
                                continue;

                        update_option( $this->blog_options[$o_name]['option'], $o_value );
                }

                //Now return the updated values
                return $this->_getOptions($option_names);
        }

        /**
         * Retrieve a media item by ID
         *
         * @since 3.1.0
         *
         * @param array $args Method parameters. Contains:
         *  - blog_id
         *  - username
         *  - password
         *  - attachment_id
         * @return array. Associative array containing:
         *  - 'date_created_gmt'
         *  - 'parent'
         *  - 'link'
         *  - 'thumbnail'
         *  - 'title'
         *  - 'caption'
         *  - 'description'
         *  - 'metadata'
         */
        function wp_getMediaItem($args) {
                $this->escape($args);

                $blog_id                = (int) $args[0];
                $username               = $args[1];
                $password               = $args[2];
                $attachment_id  = (int) $args[3];

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

                if ( !current_user_can( 'upload_files' ) )
                        return new IXR_Error( 403, __( 'You do not have permission to upload files.' ) );

                do_action('xmlrpc_call', 'wp.getMediaItem');

                if ( ! $attachment = get_post($attachment_id) )
                        return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );

                return $this->_prepare_media_item( $attachment );
        }

        /**
         * Retrieves a collection of media library items (or attachments)
         *
         * Besides the common blog_id, username, and password arguments, it takes a filter
         * array as last argument.
         *
         * Accepted 'filter' keys are 'parent_id', 'mime_type', 'offset', and 'number'.
         *
         * The defaults are as follows:
         * - 'number' - Default is 5. Total number of media items to retrieve.
         * - 'offset' - Default is 0. See {@link WP_Query::query()} for more.
         * - 'parent_id' - Default is ''. The post where the media item is attached. Empty string shows all media items. 0 shows unattached media items.
         * - 'mime_type' - Default is ''. Filter by mime type (e.g., 'image/jpeg', 'application/pdf')
         *
         * @since 3.1.0
         *
         * @param array $args Method parameters. Contains:
         *  - blog_id
         *  - username
         *  - password
         *  - filter
         * @return array. Contains a collection of media items. See {@link wp_xmlrpc_server::wp_getMediaItem()} for a description of each item contents
         */
        function wp_getMediaLibrary($args) {
                $this->escape($args);

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $struct         = isset( $args[3] ) ? $args[3] : array() ;

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

                if ( !current_user_can( 'upload_files' ) )
                        return new IXR_Error( 401, __( 'You do not have permission to upload files.' ) );

                do_action('xmlrpc_call', 'wp.getMediaLibrary');

                $parent_id = ( isset($struct['parent_id']) ) ? absint($struct['parent_id']) : '' ;
                $mime_type = ( isset($struct['mime_type']) ) ? $struct['mime_type'] : '' ;
                $offset = ( isset($struct['offset']) ) ? absint($struct['offset']) : 0 ;
                $number = ( isset($struct['number']) ) ? absint($struct['number']) : -1 ;

                $attachments = get_posts( array('post_type' => 'attachment', 'post_parent' => $parent_id, 'offset' => $offset, 'numberposts' => $number, 'post_mime_type' => $mime_type ) );

                $attachments_struct = array();

                foreach ($attachments as $attachment )
                        $attachments_struct[] = $this->_prepare_media_item( $attachment );

                return $attachments_struct;
        }

        /**
          * Retrieves a list of post formats used by the site
          *
          * @since 3.1
          *
          * @param array $args Method parameters. Contains:
          *  - blog_id
          *  - username
          *  - password
          * @return array
          */
        function wp_getPostFormats( $args ) {
                $this->escape( $args );

                $blog_id = (int) $args[0];
                $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( 403, __( 'You are not allowed access to details about this site.' ) );

                do_action( 'xmlrpc_call', 'wp.getPostFormats' );

                $formats = get_post_format_strings();

                # find out if they want a list of currently supports formats
                if ( isset( $args[3] ) && is_array( $args[3] ) ) {
                        if ( $args[3]['show-supported'] ) {
                                if ( current_theme_supports( 'post-formats' ) ) {
                                        $supported = get_theme_support( 'post-formats' );

                                        $data['all'] = $formats;
                                        $data['supported'] = $supported[0];

                                        $formats = $data;
                                }
                        }
                }

                return $formats;
        }

        /**
         * Retrieves a post type
         *
         * @since 3.4.0
         *
         * @uses get_post_type_object()
         * @param array $args Method parameters. Contains:
         *  - int     $blog_id
         *  - string  $username
         *  - string  $password
         *  - string  $post_type_name
         *  - array   $fields
         * @return array contains:
         *  - 'labels'
         *  - 'description'
         *  - 'capability_type'
         *  - 'cap'
         *  - 'map_meta_cap'
         *  - 'hierarchical'
         *  - 'menu_position'
         *  - 'taxonomies'
         *  - 'supports'
         */
        function wp_getPostType( $args ) {
                if ( ! $this->minimum_args( $args, 4 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $post_type_name = $args[3];

                if ( isset( $args[4] ) )
                        $fields = $args[4];
                else
                        $fields = apply_filters( 'xmlrpc_default_posttype_fields', array( 'labels', 'cap', 'taxonomies' ), 'wp.getPostType' );

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

                do_action( 'xmlrpc_call', 'wp.getPostType' );

                if( ! post_type_exists( $post_type_name ) )
                        return new IXR_Error( 403, __( 'Invalid post type' ) );

                $post_type = get_post_type_object( $post_type_name );

                if( ! current_user_can( $post_type->cap->edit_posts ) )
                        return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this post type.' ) );

                return $this->_prepare_post_type( $post_type, $fields );
        }

        /**
         * Retrieves a post types
         *
         * @since 3.4.0
         *
         * @uses get_post_types()
         * @param array $args Method parameters. Contains:
         *  - int     $blog_id
         *  - string  $username
         *  - string  $password
         *  - array   $filter
         *  - array   $fields
         * @return array
         */
        function wp_getPostTypes( $args ) {
                if ( ! $this->minimum_args( $args, 3 ) )
                        return $this->error;

                $this->escape( $args );

                $blog_id            = (int) $args[0];
                $username           = $args[1];
                $password           = $args[2];
                $filter             = isset( $args[3] ) ? $args[3] : array( 'public' => true );

                if ( isset( $args[4] ) )
                        $fields = $args[4];
                else
                        $fields = apply_filters( 'xmlrpc_default_posttype_fields', array( 'labels', 'cap', 'taxonomies' ), 'wp.getPostTypes' );

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

                do_action( 'xmlrpc_call', 'wp.getPostTypes' );

                $post_types = get_post_types( $filter, 'objects' );

                $struct = array();

                foreach( $post_types as $post_type ) {
                        if( ! current_user_can( $post_type->cap->edit_posts ) )
                                continue;

                        $struct[$post_type->name] = $this->_prepare_post_type( $post_type, $fields );
                }

                return $struct;
        }

        /* Blogger API functions.
         * specs on http://plant.blogger.com/api and http://groups.yahoo.com/group/bloggerDev/
         */

        /**
         * Retrieve blogs that user owns.
         *
         * Will make more sense once we support multiple blogs.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function blogger_getUsersBlogs($args) {
                if ( is_multisite() )
                        return $this->_multisite_getUsersBlogs($args);

                $this->escape($args);

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

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

                do_action('xmlrpc_call', 'blogger.getUsersBlogs');

                $is_admin = current_user_can('manage_options');

                $struct = array(
                        'isAdmin'  => $is_admin,
                        'url'      => get_option('home') . '/',
                        'blogid'   => '1',
                        'blogName' => get_option('blogname'),
                        'xmlrpc'   => site_url( 'xmlrpc.php' )
                );

                return array($struct);
        }

        /**
         * Private function for retrieving a users blogs for multisite setups
         *
         * @access protected
         */
        function _multisite_getUsersBlogs($args) {
                global $current_blog;
                $domain = $current_blog->domain;
                $path = $current_blog->path . 'xmlrpc.php';
                $protocol = is_ssl() ? 'https' : 'http';

                $rpc = new IXR_Client("$protocol://{$domain}{$path}");
                $rpc->query('wp.getUsersBlogs', $args[1], $args[2]);
                $blogs = $rpc->getResponse();

                if ( isset($blogs['faultCode']) )
                        return new IXR_Error($blogs['faultCode'], $blogs['faultString']);

                if ( $_SERVER['HTTP_HOST'] == $domain && $_SERVER['REQUEST_URI'] == $path ) {
                        return $blogs;
                } else {
                        foreach ( (array) $blogs as $blog ) {
                                if ( strpos($blog['url'], $_SERVER['HTTP_HOST']) )
                                        return array($blog);
                        }
                        return array();
                }
        }

        /**
         * Retrieve user's data.
         *
         * Gives your client some info about you, so you don't have to.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function blogger_getUserInfo($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 do not have access to user data on this site.' ) );

                do_action('xmlrpc_call', 'blogger.getUserInfo');

                $struct = array(
                        'nickname'  => $user->nickname,
                        'userid'    => $user->ID,
                        'url'       => $user->user_url,
                        'lastname'  => $user->last_name,
                        'firstname' => $user->first_name
                );

                return $struct;
        }

        /**
         * Retrieve post.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function blogger_getPost($args) {

                $this->escape($args);

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

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

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

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

                do_action('xmlrpc_call', 'blogger.getPost');

                $categories = implode(',', wp_get_post_categories($post_ID));

                $content  = '<title>'.stripslashes($post_data['post_title']).'</title>';
                $content .= '<category>'.$categories.'</category>';
                $content .= stripslashes($post_data['post_content']);

                $struct = array(
                        'userid'    => $post_data['post_author'],
                        'dateCreated' => $this->_convert_date( $post_data['post_date'] ),
                        'content'     => $content,
                        'postid'  => (string) $post_data['ID']
                );

                return $struct;
        }

        /**
         * Retrieve list of recent posts.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function blogger_getRecentPosts($args) {

                $this->escape($args);

                // $args[0] = appkey - ignored
                $blog_ID    = (int) $args[1]; /* though we don't use it yet */
                $username = $args[2];
                $password  = $args[3];
                if ( isset( $args[4] ) )
                        $query = array( 'numberposts' => absint( $args[4] ) );
                else
                        $query = array();

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

                do_action('xmlrpc_call', 'blogger.getRecentPosts');

                $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;
                }

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

                        $post_date  = $this->_convert_date( $entry['post_date'] );
                        $categories = implode(',', wp_get_post_categories($entry['ID']));

                        $content  = '<title>'.stripslashes($entry['post_title']).'</title>';
                        $content .= '<category>'.$categories.'</category>';
                        $content .= stripslashes($entry['post_content']);

                        $struct[] = array(
                                'userid' => $entry['post_author'],
                                'dateCreated' => $post_date,
                                'content' => $content,
                                'postid' => (string) $entry['ID'],
                        );

                }

                $recent_posts = array();
                for ( $j=0; $j<count($struct); $j++ ) {
                        array_push($recent_posts, $struct[$j]);
                }

                return $recent_posts;
        }

        /**
         * Retrieve blog_filename content.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return string
         */
        function blogger_getTemplate($args) {

                $this->escape($args);

                $blog_ID    = (int) $args[1];
                $username = $args[2];
                $password  = $args[3];
                $template   = $args[4]; /* could be 'main' or 'archiveIndex', but we don't use it */

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

                do_action('xmlrpc_call', 'blogger.getTemplate');

                if ( !current_user_can('edit_themes') )
                        return new IXR_Error(401, __('Sorry, this user cannot edit the template.'));

                /* warning: here we make the assumption that the blog's URL is on the same server */
                $filename = get_option('home') . '/';
                $filename = preg_replace('#https?://.+?/#', $_SERVER['DOCUMENT_ROOT'].'/', $filename);

                $f = fopen($filename, 'r');
                $content = fread($f, filesize($filename));
                fclose($f);

                /* so it is actually editable with a windows/mac client */
                // FIXME: (or delete me) do we really want to cater to bad clients at the expense of good ones by BEEPing up their line breaks? commented. $content = str_replace("\n", "\r\n", $content);

                return $content;
        }

        /**
         * Updates the content of blog_filename.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return bool True when done.
         */
        function blogger_setTemplate($args) {

                $this->escape($args);

                $blog_ID    = (int) $args[1];
                $username = $args[2];
                $password  = $args[3];
                $content    = $args[4];
                $template   = $args[5]; /* could be 'main' or 'archiveIndex', but we don't use it */

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

                do_action('xmlrpc_call', 'blogger.setTemplate');

                if ( !current_user_can('edit_themes') )
                        return new IXR_Error(401, __('Sorry, this user cannot edit the template.'));

                /* warning: here we make the assumption that the blog's URL is on the same server */
                $filename = get_option('home') . '/';
                $filename = preg_replace('#https?://.+?/#', $_SERVER['DOCUMENT_ROOT'].'/', $filename);

                if ($f = fopen($filename, 'w+')) {
                        fwrite($f, $content);
                        fclose($f);
                } else {
                        return new IXR_Error(500, __('Either the file is not writable, or something wrong happened. The file has not been updated.'));
                }

                return true;
        }

        /**
         * Create new post.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return int
         */
        function blogger_newPost($args) {

                $this->escape($args);

                $blog_ID    = (int) $args[1]; /* though we don't use it yet */
                $username = $args[2];
                $password  = $args[3];
                $content    = $args[4];
                $publish    = $args[5];

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

                do_action('xmlrpc_call', 'blogger.newPost');

                $cap = ($publish) ? 'publish_posts' : 'edit_posts';
                if ( !current_user_can($cap) )
                        return new IXR_Error(401, __('Sorry, you are not allowed to post on this site.'));

                $post_status = ($publish) ? 'publish' : 'draft';

                $post_author = $user->ID;

                $post_title = xmlrpc_getposttitle($content);
                $post_category = xmlrpc_getpostcategory($content);
                $post_content = xmlrpc_removepostdata($content);

                $post_date = current_time('mysql');
                $post_date_gmt = current_time('mysql', 1);

                $post_data = compact('blog_ID', 'post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_category', 'post_status');

                $post_ID = wp_insert_post($post_data);
                if ( is_wp_error( $post_ID ) )
                        return new IXR_Error(500, $post_ID->get_error_message());

                if ( !$post_ID )
                        return new IXR_Error(500, __('Sorry, your entry could not be posted. Something wrong happened.'));

                $this->attach_uploads( $post_ID, $post_content );

                do_action( 'xmlrpc_call_success_blogger_newPost', $post_ID, $args );

                return $post_ID;
        }

        /**
         * Edit a post.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return bool true when done.
         */
        function blogger_editPost($args) {

                $this->escape($args);

                $post_ID     = (int) $args[1];
                $username  = $args[2];
                $password   = $args[3];
                $content     = $args[4];
                $publish     = $args[5];

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

                do_action('xmlrpc_call', 'blogger.editPost');

                $actual_post = wp_get_single_post($post_ID,ARRAY_A);

                if ( !$actual_post || $actual_post['post_type'] != 'post' )
                        return new IXR_Error(404, __('Sorry, no such post.'));

                $this->escape($actual_post);

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

                extract($actual_post, EXTR_SKIP);

                if ( ('publish' == $post_status) && !current_user_can('publish_posts') )
                        return new IXR_Error(401, __('Sorry, you do not have the right to publish this post.'));

                $post_title = xmlrpc_getposttitle($content);
                $post_category = xmlrpc_getpostcategory($content);
                $post_content = xmlrpc_removepostdata($content);

                $postdata = compact('ID', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt');

                $result = wp_update_post($postdata);

                if ( !$result )
                        return new IXR_Error(500, __('For some strange yet very annoying reason, this post could not be edited.'));

                $this->attach_uploads( $ID, $post_content );

                do_action( 'xmlrpc_call_success_blogger_editPost', $post_ID, $args );

                return true;
        }

        /**
         * Remove a post.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return bool True when post is deleted.
         */
        function blogger_deletePost($args) {
                $this->escape($args);

                $post_ID     = (int) $args[1];
                $username  = $args[2];
                $password   = $args[3];
                $publish     = $args[4];

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

                do_action('xmlrpc_call', 'blogger.deletePost');

                $actual_post = wp_get_single_post($post_ID,ARRAY_A);

                if ( !$actual_post || $actual_post['post_type'] != 'post' )
                        return new IXR_Error(404, __('Sorry, no such post.'));

                if ( !current_user_can('delete_post', $post_ID) )
                        return new IXR_Error(401, __('Sorry, you do not have the right to delete this post.'));

                $result = wp_delete_post($post_ID);

                if ( !$result )
                        return new IXR_Error(500, __('For some strange yet very annoying reason, this post could not be deleted.'));

                do_action( 'xmlrpc_call_success_blogger_deletePost', $post_ID, $args );

                return true;
        }

        /* MetaWeblog API functions
         * specs on wherever Dave Winer wants them to be
         */

        /**
         * Create a new post.
         *
         * The 'content_struct' argument must contain:
         *  - title
         *  - description
         *  - mt_excerpt
         *  - mt_text_more
         *  - mt_keywords
         *  - mt_tb_ping_urls
         *  - categories
         *
         * Also, it can optionally contain:
         *  - wp_slug
         *  - wp_password
         *  - wp_page_parent_id
         *  - wp_page_order
         *  - wp_author_id
         *  - post_status | page_status - can be 'draft', 'private', 'publish', or 'pending'
         *  - mt_allow_comments - can be 'open' or 'closed'
         *  - mt_allow_pings - can be 'open' or 'closed'
         *  - date_created_gmt
         *  - dateCreated
         *  - wp_post_thumbnail
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters. Contains:
         *  - blog_id
         *  - username
         *  - password
         *  - content_struct
         *  - publish
         * @return int
         */
        function mw_newPost($args) {
                $this->escape($args);

                $blog_ID     = (int) $args[0];
                $username  = $args[1];
                $password   = $args[2];
                $content_struct = $args[3];
                $publish     = isset( $args[4] ) ? $args[4] : 0;

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

                do_action('xmlrpc_call', 'metaWeblog.newPost');

                $page_template = '';
                if ( !empty( $content_struct['post_type'] ) ) {
                        if ( $content_struct['post_type'] == 'page' ) {
                                if ( $publish )
                                        $cap  = 'publish_pages';
                                elseif ( isset( $content_struct['page_status'] ) && 'publish' == $content_struct['page_status'] )
                                        $cap  = 'publish_pages';
                                else
                                        $cap = 'edit_pages';
                                $error_message = __( 'Sorry, you are not allowed to publish pages on this site.' );
                                $post_type = 'page';
                                if ( !empty( $content_struct['wp_page_template'] ) )
                                        $page_template = $content_struct['wp_page_template'];
                        } elseif ( $content_struct['post_type'] == 'post' ) {
                                if ( $publish )
                                        $cap  = 'publish_posts';
                                elseif ( isset( $content_struct['post_status'] ) && 'publish' == $content_struct['post_status'] )
                                        $cap  = 'publish_posts';
                                else
                                        $cap = 'edit_posts';
                                $error_message = __( 'Sorry, you are not allowed to publish posts on this site.' );
                                $post_type = 'post';
                        } else {
                                // No other post_type values are allowed here
                                return new IXR_Error( 401, __( 'Invalid post type' ) );
                        }
                } else {
                        if ( $publish )
                                $cap  = 'publish_posts';
                        elseif ( isset( $content_struct['post_status'] ) && 'publish' == $content_struct['post_status'])
                                $cap  = 'publish_posts';
                        else
                                $cap = 'edit_posts';
                        $error_message = __( 'Sorry, you are not allowed to publish posts on this site.' );
                        $post_type = 'post';
                }

                if ( !current_user_can( $cap ) )
                        return new IXR_Error( 401, $error_message );

                // Check for a valid post format if one was given
                if ( isset( $content_struct['wp_post_format'] ) ) {
                        $content_struct['wp_post_format'] = sanitize_key( $content_struct['wp_post_format'] );
                        if ( !array_key_exists( $content_struct['wp_post_format'], get_post_format_strings() ) ) {
                                return new IXR_Error( 404, __( 'Invalid post format' ) );
                        }
                }

                // Let WordPress generate the post_name (slug) unless
                // one has been provided.
                $post_name = "";
                if ( isset($content_struct['wp_slug']) )
                        $post_name = $content_struct['wp_slug'];

                // Only use a password if one was given.
                if ( isset($content_struct['wp_password']) )
                        $post_password = $content_struct['wp_password'];

                // Only set a post parent if one was provided.
                if ( isset($content_struct['wp_page_parent_id']) )
                        $post_parent = $content_struct['wp_page_parent_id'];

                // Only set the menu_order if it was provided.
                if ( isset($content_struct['wp_page_order']) )
                        $menu_order = $content_struct['wp_page_order'];

                $post_author = $user->ID;

                // If an author id was provided then use it instead.
                if ( isset($content_struct['wp_author_id']) && ($user->ID != $content_struct['wp_author_id']) ) {
                        switch ( $post_type ) {
                                case "post":
                                        if ( !current_user_can('edit_others_posts') )
                                                return(new IXR_Error(401, __('You are not allowed to post as this user')));
                                        break;
                                case "page":
                                        if ( !current_user_can('edit_others_pages') )
                                                return(new IXR_Error(401, __('You are not allowed to create pages as this user')));
                                        break;
                                default:
                                        return(new IXR_Error(401, __('Invalid post type')));
                                        break;
                        }
                        $author = get_userdata( $content_struct['wp_author_id'] );
                        if ( ! $author )
                                return new IXR_Error( 404, __( 'Invalid author ID.' ) );
                        $post_author = $content_struct['wp_author_id'];
                }

                $post_title = isset( $content_struct['title'] ) ? $content_struct['title'] : null;
                $post_content = isset( $content_struct['description'] ) ? $content_struct['description'] : null;

                $post_status = $publish ? 'publish' : 'draft';

                if ( isset( $content_struct["{$post_type}_status"] ) ) {
                        switch ( $content_struct["{$post_type}_status"] ) {
                                case 'draft':
                                case 'pending':
                                case 'private':
                                case 'publish':
                                        $post_status = $content_struct["{$post_type}_status"];
                                        break;
                                default:
                                        $post_status = $publish ? 'publish' : 'draft';
                                        break;
                        }
                }

                $post_excerpt = isset($content_struct['mt_excerpt']) ? $content_struct['mt_excerpt'] : null;
                $post_more = isset($content_struct['mt_text_more']) ? $content_struct['mt_text_more'] : null;

                $tags_input = isset($content_struct['mt_keywords']) ? $content_struct['mt_keywords'] : null;

                if ( isset($content_struct['mt_allow_comments']) ) {
                        if ( !is_numeric($content_struct['mt_allow_comments']) ) {
                                switch ( $content_struct['mt_allow_comments'] ) {
                                        case 'closed':
                                                $comment_status = 'closed';
                                                break;
                                        case 'open':
                                                $comment_status = 'open';
                                                break;
                                        default:
                                                $comment_status = get_option('default_comment_status');
                                                break;
                                }
                        } else {
                                switch ( (int) $content_struct['mt_allow_comments'] ) {
                                        case 0:
                                        case 2:
                                                $comment_status = 'closed';
                                                break;
                                        case 1:
                                                $comment_status = 'open';
                                                break;
                                        default:
                                                $comment_status = get_option('default_comment_status');
                                                break;
                                }
                        }
                } else {
                        $comment_status = get_option('default_comment_status');
                }

                if ( isset($content_struct['mt_allow_pings']) ) {
                        if ( !is_numeric($content_struct['mt_allow_pings']) ) {
                                switch ( $content_struct['mt_allow_pings'] ) {
                                        case 'closed':
                                                $ping_status = 'closed';
                                                break;
                                        case 'open':
                                                $ping_status = 'open';
                                                break;
                                        default:
                                                $ping_status = get_option('default_ping_status');
                                                break;
                                }
                        } else {
                                switch ( (int) $content_struct['mt_allow_pings'] ) {
                                        case 0:
                                                $ping_status = 'closed';
                                                break;
                                        case 1:
                                                $ping_status = 'open';
                                                break;
                                        default:
                                                $ping_status = get_option('default_ping_status');
                                                break;
                                }
                        }
                } else {
                        $ping_status = get_option('default_ping_status');
                }

                if ( $post_more )
                        $post_content = $post_content . '<!--more-->' . $post_more;

                $to_ping = null;
                if ( isset( $content_struct['mt_tb_ping_urls'] ) ) {
                        $to_ping = $content_struct['mt_tb_ping_urls'];
                        if ( is_array($to_ping) )
                                $to_ping = implode(' ', $to_ping);
                }

                // Do some timestamp voodoo
                if ( !empty( $content_struct['date_created_gmt'] ) )
                        // We know this is supposed to be GMT, so we're going to slap that Z on there by force
                        $dateCreated = rtrim( $content_struct['date_created_gmt']->getIso(), 'Z' ) . 'Z';
                elseif ( !empty( $content_struct['dateCreated']) )
                        $dateCreated = $content_struct['dateCreated']->getIso();

                if ( !empty( $dateCreated ) ) {
                        $post_date = get_date_from_gmt(iso8601_to_datetime($dateCreated));
                        $post_date_gmt = iso8601_to_datetime($dateCreated, 'GMT');
                } else {
                        $post_date = current_time('mysql');
                        $post_date_gmt = current_time('mysql', 1);
                }

                $post_category = array();
                if ( isset( $content_struct['categories'] ) ) {
                        $catnames = $content_struct['categories'];

                        if ( is_array($catnames) ) {
                                foreach ($catnames as $cat) {
                                        $post_category[] = get_cat_ID($cat);
                                }
                        }
                }

                $postdata = compact('post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'comment_status', 'ping_status', 'to_ping', 'post_type', 'post_name', 'post_password', 'post_parent', 'menu_order', 'tags_input', 'page_template');

                $post_ID = $postdata['ID'] = get_default_post_to_edit( $post_type, true )->ID;

                // Only posts can be sticky
                if ( $post_type == 'post' && isset( $content_struct['sticky'] ) ) {
                        if ( $content_struct['sticky'] == true )
                                stick_post( $post_ID );
                        elseif ( $content_struct['sticky'] == false )
                                unstick_post( $post_ID );
                }

                if ( isset($content_struct['custom_fields']) )
                        $this->set_custom_fields($post_ID, $content_struct['custom_fields']);

                if ( isset ( $content_struct['wp_post_thumbnail'] ) ) {
                        if ( set_post_thumbnail( $post_ID, $content_struct['wp_post_thumbnail'] ) === false )
                                return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );

                        unset( $content_struct['wp_post_thumbnail'] );
                }

                // Handle enclosures
                $thisEnclosure = isset($content_struct['enclosure']) ? $content_struct['enclosure'] : null;
                $this->add_enclosure_if_new($post_ID, $thisEnclosure);

                $this->attach_uploads( $post_ID, $post_content );

                // Handle post formats if assigned, value is validated earlier
                // in this function
                if ( isset( $content_struct['wp_post_format'] ) )
                        wp_set_post_terms( $post_ID, array( 'post-format-' . $content_struct['wp_post_format'] ), 'post_format' );

                $post_ID = wp_insert_post( $postdata, true );
                if ( is_wp_error( $post_ID ) )
                        return new IXR_Error(500, $post_ID->get_error_message());

                if ( !$post_ID )
                        return new IXR_Error(500, __('Sorry, your entry could not be posted. Something wrong happened.'));

                do_action( 'xmlrpc_call_success_mw_newPost', $post_ID, $args );

                return strval($post_ID);
        }

        function add_enclosure_if_new($post_ID, $enclosure) {
                if ( is_array( $enclosure ) && isset( $enclosure['url'] ) && isset( $enclosure['length'] ) && isset( $enclosure['type'] ) ) {

                        $encstring = $enclosure['url'] . "\n" . $enclosure['length'] . "\n" . $enclosure['type'];
                        $found = false;
                        foreach ( (array) get_post_custom($post_ID) as $key => $val) {
                                if ($key == 'enclosure') {
                                        foreach ( (array) $val as $enc ) {
                                                if ($enc == $encstring) {
                                                        $found = true;
                                                        break 2;
                                                }
                                        }
                                }
                        }
                        if (!$found)
                                add_post_meta( $post_ID, 'enclosure', $encstring );
                }
        }

        /**
         * Attach upload to a post.
         *
         * @since 2.1.0
         *
         * @param int $post_ID Post ID.
         * @param string $post_content Post Content for attachment.
         */
        function attach_uploads( $post_ID, $post_content ) {
                global $wpdb;

                // find any unattached files
                $attachments = $wpdb->get_results( "SELECT ID, guid FROM {$wpdb->posts} WHERE post_parent = '0' AND post_type = 'attachment'" );
                if ( is_array( $attachments ) ) {
                        foreach ( $attachments as $file ) {
                                if ( strpos( $post_content, $file->guid ) !== false )
                                        $wpdb->update($wpdb->posts, array('post_parent' => $post_ID), array('ID' => $file->ID) );
                        }
                }
        }

        /**
         * Edit a post.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return bool True on success.
         */
        function mw_editPost($args) {

                $this->escape($args);

                $post_ID        = (int) $args[0];
                $username       = $args[1];
                $password       = $args[2];
                $content_struct = $args[3];
                $publish        = isset( $args[4] ) ? $args[4] : 0;

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

                do_action('xmlrpc_call', 'metaWeblog.editPost');

                $postdata = wp_get_single_post( $post_ID, ARRAY_A );

                // If there is no post data for the give post id, stop
                // now and return an error. Other wise a new post will be
                // created (which was the old behavior).
                if ( ! $postdata || empty( $postdata[ 'ID' ] ) )
                        return new IXR_Error( 404, __( 'Invalid post ID.' ) );

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

                // Use wp.editPost to edit post types other than post and page.
                if ( ! in_array( $postdata[ 'post_type' ], array( 'post', 'page' ) ) )
                        return new IXR_Error( 401, __( 'Invalid post type' ) );

                // Thwart attempt to change the post type.
                if ( ! empty( $content_struct[ 'post_type' ] ) && ( $content_struct['post_type'] != $postdata[ 'post_type' ] ) )
                        return new IXR_Error( 401, __( 'The post type may not be changed.' ) );

                // Check for a valid post format if one was given
                if ( isset( $content_struct['wp_post_format'] ) ) {
                        $content_struct['wp_post_format'] = sanitize_key( $content_struct['wp_post_format'] );
                        if ( !array_key_exists( $content_struct['wp_post_format'], get_post_format_strings() ) ) {
                                return new IXR_Error( 404, __( 'Invalid post format' ) );
                        }
                }

                $this->escape($postdata);
                extract($postdata, EXTR_SKIP);

                // Let WordPress manage slug if none was provided.
                $post_name = "";
                $post_name = $postdata['post_name'];
                if ( isset($content_struct['wp_slug']) )
                        $post_name = $content_struct['wp_slug'];

                // Only use a password if one was given.
                if ( isset($content_struct['wp_password']) )
                        $post_password = $content_struct['wp_password'];

                // Only set a post parent if one was given.
                if ( isset($content_struct['wp_page_parent_id']) )
                        $post_parent = $content_struct['wp_page_parent_id'];

                // Only set the menu_order if it was given.
                if ( isset($content_struct['wp_page_order']) )
                        $menu_order = $content_struct['wp_page_order'];

                if ( ! empty( $content_struct['wp_page_template'] ) && 'page' == $post_type )
                        $page_template = $content_struct['wp_page_template'];

                $post_author = $postdata['post_author'];

                // Only set the post_author if one is set.
                if ( isset($content_struct['wp_author_id']) && ($user->ID != $content_struct['wp_author_id']) ) {
                        switch ( $post_type ) {
                                case 'post':
                                        if ( !current_user_can('edit_others_posts') )
                                                return(new IXR_Error(401, __('You are not allowed to change the post author as this user.')));
                                        break;
                                case 'page':
                                        if ( !current_user_can('edit_others_pages') )
                                                return(new IXR_Error(401, __('You are not allowed to change the page author as this user.')));
                                        break;
                                default:
                                        return(new IXR_Error(401, __('Invalid post type')));
                                        break;
                        }
                        $post_author = $content_struct['wp_author_id'];
                }

                if ( isset($content_struct['mt_allow_comments']) ) {
                        if ( !is_numeric($content_struct['mt_allow_comments']) ) {
                                switch ( $content_struct['mt_allow_comments'] ) {
                                        case 'closed':
                                                $comment_status = 'closed';
                                                break;
                                        case 'open':
                                                $comment_status = 'open';
                                                break;
                                        default:
                                                $comment_status = get_option('default_comment_status');
                                                break;
                                }
                        } else {
                                switch ( (int) $content_struct['mt_allow_comments'] ) {
                                        case 0:
                                        case 2:
                                                $comment_status = 'closed';
                                                break;
                                        case 1:
                                                $comment_status = 'open';
                                                break;
                                        default:
                                                $comment_status = get_option('default_comment_status');
                                                break;
                                }
                        }
                }

                if ( isset($content_struct['mt_allow_pings']) ) {
                        if ( !is_numeric($content_struct['mt_allow_pings']) ) {
                                switch ( $content_struct['mt_allow_pings'] ) {
                                        case 'closed':
                                                $ping_status = 'closed';
                                                break;
                                        case 'open':
                                                $ping_status = 'open';
                                                break;
                                        default:
                                                $ping_status = get_option('default_ping_status');
                                                break;
                                }
                        } else {
                                switch ( (int) $content_struct["mt_allow_pings"] ) {
                                        case 0:
                                                $ping_status = 'closed';
                                                break;
                                        case 1:
                                                $ping_status = 'open';
                                                break;
                                        default:
                                                $ping_status = get_option('default_ping_status');
                                                break;
                                }
                        }
                }

                if ( isset( $content_struct['title'] ) )
                        $post_title =  $content_struct['title'];

                if ( isset( $content_struct['description'] ) )
                        $post_content = $content_struct['description'];

                $post_category = array();
                if ( isset( $content_struct['categories'] ) ) {
                        $catnames = $content_struct['categories'];
                        if ( is_array($catnames) ) {
                                foreach ($catnames as $cat) {
                                        $post_category[] = get_cat_ID($cat);
                                }
                        }
                }

                if ( isset( $content_struct['mt_excerpt'] ) )
                        $post_excerpt =  $content_struct['mt_excerpt'];

                $post_more = isset( $content_struct['mt_text_more'] ) ? $content_struct['mt_text_more'] : null;

                $post_status = $publish ? 'publish' : 'draft';
                if ( isset( $content_struct["{$post_type}_status"] ) ) {
                        switch( $content_struct["{$post_type}_status"] ) {
                                case 'draft':
                                case 'pending':
                                case 'private':
                                case 'publish':
                                        $post_status = $content_struct["{$post_type}_status"];
                                        break;
                                default:
                                        $post_status = $publish ? 'publish' : 'draft';
                                        break;
                        }
                }

                $tags_input = isset( $content_struct['mt_keywords'] ) ? $content_struct['mt_keywords'] : null;

                if ( ('publish' == $post_status) ) {
                        if ( ( 'page' == $post_type ) && !current_user_can('publish_pages') )
                                return new IXR_Error(401, __('Sorry, you do not have the right to publish this page.'));
                        else if ( !current_user_can('publish_posts') )
                                return new IXR_Error(401, __('Sorry, you do not have the right to publish this post.'));
                }

                if ( $post_more )
                        $post_content = $post_content . "<!--more-->" . $post_more;

                $to_ping = null;
                if ( isset( $content_struct['mt_tb_ping_urls'] ) ) {
                        $to_ping = $content_struct['mt_tb_ping_urls'];
                        if ( is_array($to_ping) )
                                $to_ping = implode(' ', $to_ping);
                }

                // Do some timestamp voodoo
                if ( !empty( $content_struct['date_created_gmt'] ) )
                        // We know this is supposed to be GMT, so we're going to slap that Z on there by force
                        $dateCreated = rtrim( $content_struct['date_created_gmt']->getIso(), 'Z' ) . 'Z';
                elseif ( !empty( $content_struct['dateCreated']) )
                        $dateCreated = $content_struct['dateCreated']->getIso();

                if ( !empty( $dateCreated ) ) {
                        $post_date = get_date_from_gmt(iso8601_to_datetime($dateCreated));
                        $post_date_gmt = iso8601_to_datetime($dateCreated, 'GMT');
                } else {
                        $post_date     = $postdata['post_date'];
                        $post_date_gmt = $postdata['post_date_gmt'];
                }

                // We've got all the data -- post it:
                $newpost = compact('ID', 'post_content', 'post_title', 'post_category', 'post_status', 'post_excerpt', 'comment_status', 'ping_status', 'post_date', 'post_date_gmt', 'to_ping', 'post_name', 'post_password', 'post_parent', 'menu_order', 'post_author', 'tags_input', 'page_template');

                $result = wp_update_post($newpost, true);
                if ( is_wp_error( $result ) )
                        return new IXR_Error(500, $result->get_error_message());

                if ( !$result )
                        return new IXR_Error(500, __('Sorry, your entry could not be edited. Something wrong happened.'));

                // Only posts can be sticky
                if ( $post_type == 'post' && isset( $content_struct['sticky'] ) ) {
                        if ( $content_struct['sticky'] == true )
                                stick_post( $post_ID );
                        elseif ( $content_struct['sticky'] == false )
                                unstick_post( $post_ID );
                }

                if ( isset($content_struct['custom_fields']) )
                        $this->set_custom_fields($post_ID, $content_struct['custom_fields']);

                if ( isset ( $content_struct['wp_post_thumbnail'] ) ) {
                        // empty value deletes, non-empty value adds/updates
                        if ( empty( $content_struct['wp_post_thumbnail'] ) ) {
                                delete_post_thumbnail( $post_ID );
                        } else {
                                if ( set_post_thumbnail( $post_ID, $content_struct['wp_post_thumbnail'] ) === false )
                                        return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
                        }
                        unset( $content_struct['wp_post_thumbnail'] );
                }

                // Handle enclosures
                $thisEnclosure = isset($content_struct['enclosure']) ? $content_struct['enclosure'] : null;
                $this->add_enclosure_if_new($post_ID, $thisEnclosure);

                $this->attach_uploads( $ID, $post_content );

                // Handle post formats if assigned, validation is handled
                // earlier in this function
                if ( isset( $content_struct['wp_post_format'] ) )
                        wp_set_post_terms( $post_ID, array( 'post-format-' . $content_struct['wp_post_format'] ), 'post_format' );

                do_action( 'xmlrpc_call_success_mw_editPost', $post_ID, $args );

                return true;
        }

        /**
         * Retrieve post.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function mw_getPost($args) {

                $this->escape($args);

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

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

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

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

                do_action('xmlrpc_call', 'metaWeblog.getPost');

                if ($postdata['post_date'] != '') {
                        $post_date = $this->_convert_date( $postdata['post_date'] );
                        $post_date_gmt = $this->_convert_date_gmt( $postdata['post_date_gmt'],  $postdata['post_date'] );
                        $post_modified = $this->_convert_date( $postdata['post_modified'] );
                        $post_modified_gmt = $this->_convert_date_gmt( $postdata['post_modified_gmt'], $postdata['post_modified'] );

                        $categories = array();
                        $catids = wp_get_post_categories($post_ID);
                        foreach($catids as $catid)
                                $categories[] = get_cat_name($catid);

                        $tagnames = array();
                        $tags = wp_get_post_tags( $post_ID );
                        if ( !empty( $tags ) ) {
                                foreach ( $tags as $tag )
                                        $tagnames[] = $tag->name;
                                $tagnames = implode( ', ', $tagnames );
                        } else {
                                $tagnames = '';
                        }

                        $post = get_extended($postdata['post_content']);
                        $link = post_permalink($postdata['ID']);

                        // Get the author info.
                        $author = get_userdata($postdata['post_author']);

                        $allow_comments = ('open' == $postdata['comment_status']) ? 1 : 0;
                        $allow_pings = ('open' == $postdata['ping_status']) ? 1 : 0;

                        // Consider future posts as published
                        if ( $postdata['post_status'] === 'future' )
                                $postdata['post_status'] = 'publish';

                        // Get post format
                        $post_format = get_post_format( $post_ID );
                        if ( empty( $post_format ) )
                                $post_format = 'standard';

                        $sticky = false;
                        if ( is_sticky( $post_ID ) )
                                $sticky = true;

                        $enclosure = array();
                        foreach ( (array) get_post_custom($post_ID) as $key => $val) {
                                if ($key == 'enclosure') {
                                        foreach ( (array) $val as $enc ) {
                                                $encdata = explode("\n", $enc);
                                                $enclosure['url'] = trim(htmlspecialchars($encdata[0]));
                                                $enclosure['length'] = (int) trim($encdata[1]);
                                                $enclosure['type'] = trim($encdata[2]);
                                                break 2;
                                        }
                                }
                        }

                        $resp = array(
                                'dateCreated' => $post_date,
                                'userid' => $postdata['post_author'],
                                'postid' => $postdata['ID'],
                                'description' => $post['main'],
                                'title' => $postdata['post_title'],
                                'link' => $link,
                                'permaLink' => $link,
                                // commented out because no other tool seems to use this
                                //            'content' => $entry['post_content'],
                                'categories' => $categories,
                                'mt_excerpt' => $postdata['post_excerpt'],
                                'mt_text_more' => $post['extended'],
                                'wp_more_text' => $post['more_text'],
                                'mt_allow_comments' => $allow_comments,
                                'mt_allow_pings' => $allow_pings,
                                'mt_keywords' => $tagnames,
                                'wp_slug' => $postdata['post_name'],
                                'wp_password' => $postdata['post_password'],
                                'wp_author_id' => (string) $author->ID,
                                'wp_author_display_name' => $author->display_name,
                                'date_created_gmt' => $post_date_gmt,
                                'post_status' => $postdata['post_status'],
                                'custom_fields' => $this->get_custom_fields($post_ID),
                                'wp_post_format' => $post_format,
                                'sticky' => $sticky,
                                'date_modified' => $post_modified,
                                'date_modified_gmt' => $post_modified_gmt
                        );

                        if ( !empty($enclosure) ) $resp['enclosure'] = $enclosure;

                        $resp['wp_post_thumbnail'] = get_post_thumbnail_id( $postdata['ID'] );

                        return $resp;
                } else {
                        return new IXR_Error(404, __('Sorry, no such post.'));
                }
        }

        /**
         * Retrieve list of recent posts.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function mw_getRecentPosts($args) {

                $this->escape($args);

                $blog_ID     = (int) $args[0];
                $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;

                do_action('xmlrpc_call', 'metaWeblog.getRecentPosts');

                $posts_list = wp_get_recent_posts( $query );

                if ( !$posts_list )
                        return 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'] );
                        $post_modified = $this->_convert_date( $entry['post_modified'] );
                        $post_modified_gmt = $this->_convert_date_gmt( $entry['post_modified_gmt'], $entry['post_modified'] );

                        $categories = array();
                        $catids = wp_get_post_categories($entry['ID']);
                        foreach( $catids as $catid )
                                $categories[] = get_cat_name($catid);

                        $tagnames = array();
                        $tags = wp_get_post_tags( $entry['ID'] );
                        if ( !empty( $tags ) ) {
                                foreach ( $tags as $tag ) {
                                        $tagnames[] = $tag->name;
                                }
                                $tagnames = implode( ', ', $tagnames );
                        } else {
                                $tagnames = '';
                        }

                        $post = get_extended($entry['post_content']);
                        $link = post_permalink($entry['ID']);

                        // Get the post author info.
                        $author = get_userdata($entry['post_author']);

                        $allow_comments = ('open' == $entry['comment_status']) ? 1 : 0;
                        $allow_pings = ('open' == $entry['ping_status']) ? 1 : 0;

                        // Consider future posts as published
                        if ( $entry['post_status'] === 'future' )
                                $entry['post_status'] = 'publish';

                        // Get post format
                        $post_format = get_post_format( $entry['ID'] );
                        if ( empty( $post_format ) )
                                $post_format = 'standard';

                        $struct[] = array(
                                'dateCreated' => $post_date,
                                'userid' => $entry['post_author'],
                                'postid' => (string) $entry['ID'],
                                'description' => $post['main'],
                                'title' => $entry['post_title'],
                                'link' => $link,
                                'permaLink' => $link,
                                // commented out because no other tool seems to use this
                                // 'content' => $entry['post_content'],
                                'categories' => $categories,
                                'mt_excerpt' => $entry['post_excerpt'],
                                'mt_text_more' => $post['extended'],
                                'wp_more_text' => $post['more_text'],
                                'mt_allow_comments' => $allow_comments,
                                'mt_allow_pings' => $allow_pings,
                                'mt_keywords' => $tagnames,
                                'wp_slug' => $entry['post_name'],
                                'wp_password' => $entry['post_password'],
                                'wp_author_id' => (string) $author->ID,
                                'wp_author_display_name' => $author->display_name,
                                'date_created_gmt' => $post_date_gmt,
                                'post_status' => $entry['post_status'],
                                'custom_fields' => $this->get_custom_fields($entry['ID']),
                                'wp_post_format' => $post_format,
                                'date_modified' => $post_modified,
                                'date_modified_gmt' => $post_modified_gmt
                        );

                        $entry_index = count( $struct ) - 1;
                        $struct[ $entry_index ][ 'wp_post_thumbnail' ] = get_post_thumbnail_id( $entry['ID'] );
                }

                $recent_posts = array();
                for ( $j=0; $j<count($struct); $j++ ) {
                        array_push($recent_posts, $struct[$j]);
                }

                return $recent_posts;
        }

        /**
         * Retrieve the list of categories on a given blog.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function mw_getCategories($args) {

                $this->escape($args);

                $blog_ID     = (int) $args[0];
                $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.' ) );

                do_action('xmlrpc_call', 'metaWeblog.getCategories');

                $categories_struct = array();

                if ( $cats = get_categories(array('get' => 'all')) ) {
                        foreach ( $cats as $cat ) {
                                $struct['categoryId'] = $cat->term_id;
                                $struct['parentId'] = $cat->parent;
                                $struct['description'] = $cat->name;
                                $struct['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
         *
         * @param array $args Method parameters.
         * @return array
         */
        function mw_newMediaObject($args) {
                global $wpdb;

                $blog_ID     = (int) $args[0];
                $username  = $wpdb->escape($args[1]);
                $password   = $wpdb->escape($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;

                do_action('xmlrpc_call', 'metaWeblog.newMediaObject');

                if ( !current_user_can('upload_files') ) {
                        $this->error = new IXR_Error( 401, __( 'You do not have permission to upload files.' ) );
                        return $this->error;
                }

                if ( $upload_err = apply_filters( 'pre_upload_error', false ) )
                        return new IXR_Error(500, $upload_err);

                if ( !empty($data['overwrite']) && ($data['overwrite'] == true) ) {
                        // Get postmeta info on the object.
                        $old_file = $wpdb->get_row("
                                SELECT ID
                                FROM {$wpdb->posts}
                                WHERE post_title = '{$name}'
                                        AND post_type = 'attachment'
                        ");

                        // Delete previous file.
                        wp_delete_attachment($old_file->ID);

                        // Make sure the new name is different by pre-pending the
                        // previous post id.
                        $filename = preg_replace('/^wpid\d+-/', '', $name);
                        $name = "wpid{$old_file->ID}-{$filename}";
                }

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

                do_action( 'xmlrpc_call_success_mw_newMediaObject', $id, $args );

                $struct = array(
                        'id'   => strval( $id ),
                        'file' => $name,
                        'url'  => $upload[ 'url' ],
                        'type' => $type
                );
                return apply_filters( 'wp_handle_upload', $struct, 'upload' );
        }

        /* 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 $args Method parameters.
         * @return array
         */
        function mt_getRecentPostTitles($args) {

                $this->escape($args);

                $blog_ID     = (int) $args[0];
                $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;

                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;
                }

                $struct = 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'] );

                        $struct[] = 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
                        );

                }

                $recent_posts = array();
                for ( $j=0; $j<count($struct); $j++ ) {
                        array_push($recent_posts, $struct[$j]);
                }

                return $recent_posts;
        }

        /**
         * Retrieve list of all categories on blog.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function mt_getCategoryList($args) {

                $this->escape($args);

                $blog_ID     = (int) $args[0];
                $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.' ) );

                do_action('xmlrpc_call', 'mt.getCategoryList');

                $categories_struct = array();

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

                                $categories_struct[] = $struct;
                        }
                }

                return $categories_struct;
        }

        /**
         * Retrieve post categories.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return array
         */
        function mt_getPostCategories($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 can not edit this post.' ) );

                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 $args Method parameters.
         * @return bool True on success.
         */
        function mt_setPostCategories($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;

                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 cannot edit this post.'));

                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
         *
         * @param array $args Method parameters.
         * @return array
         */
        function mt_supportedMethods($args) {

                do_action('xmlrpc_call', 'mt.supportedMethods');

                $supported_methods = array();
                foreach ( $this->methods as $key => $value ) {
                        $supported_methods[] = $key;
                }

                return $supported_methods;
        }

        /**
         * Retrieve an empty array because we don't support per-post text filters.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         */
        function mt_supportedTextFilters($args) {
                do_action('xmlrpc_call', 'mt.supportedTextFilters');
                return apply_filters('xmlrpc_text_filters', array());
        }

        /**
         * Retrieve trackbacks sent to a given post.
         *
         * @since 1.5.0
         *
         * @param array $args Method parameters.
         * @return mixed
         */
        function mt_getTrackbackPings($args) {

                global $wpdb;

                $post_ID = intval($args);

                do_action('xmlrpc_call', 'mt.getTrackbackPings');

                $actual_post = wp_get_single_post($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'.