HTML Examples/WP.iso/wordpress/wp-includes/class-wp-xmlrpc-server.php

PHP Script | 2017-10-23 | 196.7 KB | 6,574 lines

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

/**
 * WordPress XMLRPC server implementation.
 *
 * Implements compatibility for Blogger API, MetaWeblog API, MovableType, and
 * pingback. Additional WordPress API for managing comments, pages, posts,
 * options, etc.
 *
 * As of WordPress 3.5.0, XML-RPC is enabled by default. It can be disabled
 * via the {@see 'xmlrpc_enabled'} filter found in wp_xmlrpc_server::login().
 *
 * @since 1.5.0
 *
 * @see IXR_Server
 */
class wp_xmlrpc_server extends IXR_Server {
    /**
     * Methods.
     *
     * @var array
     */
    public $methods;

    /**
     * Blog options.
     *
     * @var array
     */
    public $blog_options;

    /**
     * IXR_Error instance.
     *
     * @var IXR_Error
     */
    public $error;

    /**
     * Flags that the user authentication has failed in this instance of wp_xmlrpc_server.
     *
     * @var bool
     */
    protected $auth_failed = false;

    /**
     * Registers all of the XMLRPC methods that XMLRPC server understands.
     *
     * Sets up server and method property. Passes XMLRPC
     * methods through the {@see 'xmlrpc_methods'} filter to allow plugins to extend
     * or replace XML-RPC methods.
     *
     * @since 1.5.0
     */
    public 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.getUser'            => 'this:wp_getUser',
            'wp.getUsers'            => 'this:wp_getUsers',
            'wp.getProfile'            => 'this:wp_getProfile',
            'wp.editProfile'        => 'this:wp_editProfile',
            '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.deleteFile'            => 'this:wp_deletePost',        // 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',
            'wp.getRevisions'        => 'this:wp_getRevisions',
            'wp.restoreRevision'    => 'this:wp_restoreRevision',

            // Blogger API
            'blogger.getUsersBlogs' => 'this:blogger_getUsersBlogs',
            'blogger.getUserInfo' => 'this:blogger_getUserInfo',
            'blogger.getPost' => 'this:blogger_getPost',
            'blogger.getRecentPosts' => 'this:blogger_getRecentPosts',
            '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.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();

        /**
         * Filters the methods exposed by the XML-RPC server.
         *
         * This filter can be used to add new methods, and remove built-in methods.
         *
         * @since 1.5.0
         *
         * @param array $methods An array of XML-RPC methods.
         */
        $this->methods = apply_filters( 'xmlrpc_methods', $this->methods );
    }

    /**
     * Make private/protected methods readable for backward compatibility.
     *
     * @since 4.0.0
     *
     * @param callable $name      Method to call.
     * @param array    $arguments Arguments to pass when calling.
     * @return array|IXR_Error|false Return value of the callback, false otherwise.
     */
    public function __call( $name, $arguments ) {
        if ( '_multisite_getUsersBlogs' === $name ) {
            return call_user_func_array( array( $this, $name ), $arguments );
        }
        return false;
    }

    /**
     * Serves the XML-RPC request.
     *
     * @since 2.9.0
     */
    public function serve_request() {
        $this->IXR_Server($this->methods);
    }

    /**
     * Test XMLRPC API by saying, "Hello!" to client.
     *
     * @since 1.5.0
     *
     * @return string Hello string response.
     */
    public function sayHello() {
        return 'Hello!';
    }

    /**
     * Test XMLRPC API by adding two numbers for client.
     *
     * @since 1.5.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int $number1 A number to add.
     *     @type int $number2 A second number to add.
     * }
     * @return int Sum of the two given numbers.
     */
    public function addTwoNumbers( $args ) {
        $number1 = $args[0];
        $number2 = $args[1];
        return $number1 + $number2;
    }

    /**
     * Log user in.
     *
     * @since 2.8.0
     *
     * @param string $username User's username.
     * @param string $password User's password.
     * @return WP_User|bool WP_User object if authentication passed, false otherwise
     */
    public function login( $username, $password ) {
        /*
         * Respect old get_option() filters left for back-compat when the 'enable_xmlrpc'
         * option was deprecated in 3.5.0. Use the 'xmlrpc_enabled' hook instead.
         */
        $enabled = apply_filters( 'pre_option_enable_xmlrpc', false );
        if ( false === $enabled ) {
            $enabled = apply_filters( 'option_enable_xmlrpc', true );
        }

        /**
         * Filters whether XML-RPC methods requiring authentication are enabled.
         *
         * Contrary to the way it's named, this filter does not control whether XML-RPC is *fully*
         * enabled, rather, it only controls whether XML-RPC methods requiring authentication - such
         * as for publishing purposes - are enabled.
         *
         * Further, the filter does not control whether pingbacks or other custom endpoints that don't
         * require authentication are enabled. This behavior is expected, and due to how parity was matched
         * with the `enable_xmlrpc` UI option the filter replaced when it was introduced in 3.5.
         *
         * To disable XML-RPC methods that require authentication, use:
         *
         *     add_filter( 'xmlrpc_enabled', '__return_false' );
         *
         * For more granular control over all XML-RPC methods and requests, see the {@see 'xmlrpc_methods'}
         * and {@see 'xmlrpc_element_limit'} hooks.
         *
         * @since 3.5.0
         *
         * @param bool $enabled Whether XML-RPC is enabled. Default true.
         */
        $enabled = apply_filters( 'xmlrpc_enabled', $enabled );

        if ( ! $enabled ) {
            $this->error = new IXR_Error( 405, sprintf( __( 'XML-RPC services are disabled on this site.' ) ) );
            return false;
        }

        if ( $this->auth_failed ) {
            $user = new WP_Error( 'login_prevented' );
        } else {
            $user = wp_authenticate( $username, $password );
        }

        if ( is_wp_error( $user ) ) {
            $this->error = new IXR_Error( 403, __( 'Incorrect username or password.' ) );

            // Flag that authentication has failed once on this wp_xmlrpc_server instance
            $this->auth_failed = true;

            /**
             * Filters the XML-RPC user login error message.
             *
             * @since 3.5.0
             *
             * @param string  $error The XML-RPC error message.
             * @param WP_User $user  WP_User object.
             */
            $this->error = apply_filters( 'xmlrpc_login_error', $this->error, $user );
            return false;
        }

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

    /**
     * Check user's credentials. Deprecated.
     *
     * @since 1.5.0
     * @deprecated 2.8.0 Use wp_xmlrpc_server::login()
     * @see wp_xmlrpc_server::login()
     *
     * @param string $username User's username.
     * @param string $password User's password.
     * @return bool Whether authentication passed.
     */
    public function login_pass_ok( $username, $password ) {
        return (bool) $this->login( $username, $password );
    }

    /**
     * Escape string or array of strings for database.
     *
     * @since 1.5.2
     *
     * @param string|array $data Escape single string or array of strings.
     * @return string|void Returns with string is passed, alters by-reference
     *                     when array is passed.
     */
    public function escape( &$data ) {
        if ( ! is_array( $data ) )
            return wp_slash( $data );

        foreach ( $data as &$v ) {
            if ( is_array( $v ) )
                $this->escape( $v );
            elseif ( ! is_object( $v ) )
                $v = wp_slash( $v );
        }
    }

    /**
     * Retrieve custom fields for post.
     *
     * @since 2.5.0
     *
     * @param int $post_id Post ID.
     * @return array Custom fields, if exist.
     */
    public function get_custom_fields($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 $fields Custom fields.
     */
    public function set_custom_fields($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 ( ! $pmeta || $pmeta->post_id != $post_id ) {
                    continue;
                }

                if ( isset($meta['key']) ) {
                    $meta['key'] = wp_unslash( $meta['key'] );
                    if ( $meta['key'] !== $pmeta->meta_key )
                        continue;
                    $meta['value'] = wp_unslash( $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, wp_unslash( $meta['key'] ) ) ) {
                add_post_meta( $post_id, $meta['key'], $meta['value'] );
            }
        }
    }

    /**
     * Retrieve custom fields for a term.
     *
     * @since 4.9.0
     *
     * @param int $term_id Term ID.
     * @return array Array of custom fields, if they exist.
     */
    public function get_term_custom_fields( $term_id ) {
        $term_id = (int) $term_id;

        $custom_fields = array();

        foreach ( (array) has_term_meta( $term_id ) as $meta ) {

            if ( ! current_user_can( 'edit_term_meta', $term_id ) ) {
                continue;
            }

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

        return $custom_fields;
    }

    /**
     * Set custom fields for a term.
     *
     * @since 4.9.0
     *
     * @param int $term_id Term ID.
     * @param array $fields Custom fields.
     */
    public function set_term_custom_fields( $term_id, $fields ) {
        $term_id = (int) $term_id;

        foreach ( (array) $fields as $meta ) {
            if ( isset( $meta['id'] ) ) {
                $meta['id'] = (int) $meta['id'];
                $pmeta = get_metadata_by_mid( 'term', $meta['id'] );
                if ( isset( $meta['key'] ) ) {
                    $meta['key'] = wp_unslash( $meta['key'] );
                    if ( $meta['key'] !== $pmeta->meta_key ) {
                        continue;
                    }
                    $meta['value'] = wp_unslash( $meta['value'] );
                    if ( current_user_can( 'edit_term_meta', $term_id ) ) {
                        update_metadata_by_mid( 'term', $meta['id'], $meta['value'] );
                    }
                } elseif ( current_user_can( 'delete_term_meta', $term_id ) ) {
                    delete_metadata_by_mid( 'term', $meta['id'] );
                }
            } elseif ( current_user_can( 'add_term_meta', $term_id ) ) {
                add_term_meta( $term_id, $meta['key'], $meta['value'] );
            }
        }
    }

    /**
     * Set up blog options property.
     *
     * Passes property through {@see 'xmlrpc_blog_options'} filter.
     *
     * @since 2.6.0
     */
    public function initialise_blog_option_info() {
        $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'         => get_bloginfo( 'version' )
            ),
            'blog_url'          => array(
                'desc'          => __( 'WordPress Address (URL)' ),
                'readonly'      => true,
                'option'        => 'siteurl'
            ),
            'home_url'          => array(
                'desc'          => __( 'Site Address (URL)' ),
                'readonly'      => true,
                'option'        => 'home'
            ),
            'login_url'          => array(
                'desc'          => __( 'Login Address (URL)' ),
                'readonly'      => true,
                'value'         => wp_login_url( )
            ),
            'admin_url'          => array(
                'desc'          => __( 'The URL to the admin area' ),
                'readonly'      => true,
                'value'         => get_admin_url( )
            ),
            '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'
            ),
            'medium_large_size_w'   => array(
                'desc'          => __( 'Medium-Large size image width' ),
                'readonly'      => false,
                'option'        => 'medium_large_size_w'
            ),
            'medium_large_size_h'   => array(
                'desc'          => __( 'Medium-Large size image height' ),
                'readonly'      => false,
                'option'        => 'medium_large_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) on new articles' ),
                'readonly'      => false,
                'option'        => 'default_ping_status'
            )
        );

        /**
         * Filters the XML-RPC blog options property.
         *
         * @since 2.6.0
         *
         * @param array $blog_options An array of XML-RPC blog options.
         */
        $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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type string $username Username.
     *     @type string $password Password.
     * }
     * @return array|IXR_Error Array contains:
     *  - 'isAdmin'
     *  - 'isPrimary' - whether the blog is the user's primary blog
     *  - 'url'
     *  - 'blogid'
     *  - 'blogName'
     *  - 'xmlrpc' - url of xmlrpc endpoint
     */
    public function wp_getUsersBlogs( $args ) {
        if ( ! $this->minimum_args( $args, 2 ) ) {
            return $this->error;
        }

        // 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;

        /**
         * Fires after the XML-RPC user has been authenticated but before the rest of
         * the method logic begins.
         *
         * All built-in XML-RPC methods use the action xmlrpc_call, with a parameter
         * equal to the method's name, e.g., wp.getUsersBlogs, wp.newPost, etc.
         *
         * @since 2.5.0
         *
         * @param string $name The method name.
         */
        do_action( 'xmlrpc_call', 'wp.getUsersBlogs' );

        $blogs = (array) get_blogs_of_user( $user->ID );
        $struct = array();
        $primary_blog_id = 0;
        $active_blog = get_active_blog_for_user( $user->ID );
        if ( $active_blog ) {
            $primary_blog_id = (int) $active_blog->blog_id;
        }

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

            $blog_id = $blog->userblog_id;

            switch_to_blog( $blog_id );

            $is_admin = current_user_can( 'manage_options' );
            $is_primary = ( (int) $blog_id === $primary_blog_id );

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

            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 $count         Minimum number of arguments.
     * @return bool if `$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.
     *
     *
     * @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( 'menu', $fields ) )
            $_taxonomy['show_in_menu'] = (bool) $_taxonomy->show_in_menu;

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

        /**
         * Filters XML-RPC-prepared data for the given taxonomy.
         *
         * @since 3.4.0
         *
         * @param array       $_taxonomy An array of taxonomy data.
         * @param WP_Taxonomy $taxonomy  Taxonomy object.
         * @param array       $fields    The subset of taxonomy fields to return.
         */
        return apply_filters( 'xmlrpc_prepare_taxonomy', $_taxonomy, $taxonomy, $fields );
    }

    /**
     * Prepares term data for return in an XML-RPC object.
     *
     *
     * @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 integers which may be larger than XML-RPC 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'] );

        // Get term meta.
        $_term['custom_fields'] = $this->get_term_custom_fields( $_term['term_id'] );

        /**
         * Filters XML-RPC-prepared data for the given term.
         *
         * @since 3.4.0
         *
         * @param array        $_term An array of term data.
         * @param array|object $term  Term object or array.
         */
        return apply_filters( 'xmlrpc_prepare_term', $_term, $term );
    }

    /**
     * Convert a WordPress date string to an IXR_Date object.
     *
     *
     * @param string $date Date string to convert.
     * @return IXR_Date IXR_Date object.
     */
    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.
     *
     *
     * @param string $date_gmt WordPress GMT date string.
     * @param string $date     Date string.
     * @return IXR_Date IXR_Date object.
     */
    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.
     *
     *
     * @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'      => $post['post_content'],
            'post_parent'       => strval( $post['post_parent'] ),
            'post_mime_type'    => $post['post_mime_type'],
            'link'              => get_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] );
            }
        }

        /**
         * Filters XML-RPC-prepared date for the given post.
         *
         * @since 3.4.0
         *
         * @param array $_post  An array of modified post data.
         * @param array $post   An array of post data.
         * @param array $fields An array of post fields.
         */
        return apply_filters( 'xmlrpc_prepare_post', $_post, $post, $fields );
    }

    /**
     * Prepares post data for return in an XML-RPC object.
     *
     * @since 3.4.0
     * @since 4.6.0 Converted the `$post_type` parameter to accept a WP_Post_Type object.
     *
     * @param WP_Post_Type $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' );

        /**
         * Filters XML-RPC-prepared date for the given post type.
         *
         * @since 3.4.0
         * @since 4.6.0 Converted the `$post_type` parameter to accept a WP_Post_Type object.
         *
         * @param array        $_post_type An array of post type data.
         * @param WP_Post_Type $post_type  Post type object.
         */
        return apply_filters( 'xmlrpc_prepare_post_type', $_post_type, $post_type );
    }

    /**
     * Prepares media item data for return in an XML-RPC object.
     *
     *
     * @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 ),
            'type'             => $media_item->post_mime_type
        );

        $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'];

        /**
         * Filters XML-RPC-prepared data for the given media item.
         *
         * @since 3.4.0
         *
         * @param array  $_media_item    An array of media item data.
         * @param object $media_item     Media item object.
         * @param string $thumbnail_size Image size.
         */
        return apply_filters( 'xmlrpc_prepare_media_item', $_media_item, $media_item, $thumbnail_size );
    }

    /**
     * Prepares page data for return in an XML-RPC object.
     *
     *
     * @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 = get_permalink( $page->ID );

        // Get info the page parent if there is one.
        $parent_title = "";
        if ( ! empty( $page->post_parent ) ) {
            $parent = get_post( $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();
        if ( is_object_in_taxonomy( 'page', 'category' ) ) {
            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
        );

        /**
         * Filters XML-RPC-prepared data for the given page.
         *
         * @since 3.4.0
         *
         * @param array   $_page An array of page data.
         * @param WP_Post $page  Page object.
         */
        return apply_filters( 'xmlrpc_prepare_page', $_page, $page );
    }

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

        if ( '0' == $comment->comment_approved ) {
            $comment_status = 'hold';
        } elseif ( 'spam' == $comment->comment_approved ) {
            $comment_status = 'spam';
        } elseif ( '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,
        );

        /**
         * Filters XML-RPC-prepared data for the given comment.
         *
         * @since 3.4.0
         *
         * @param array      $_comment An array of prepared comment data.
         * @param WP_Comment $comment  Comment object.
         */
        return apply_filters( 'xmlrpc_prepare_comment', $_comment, $comment );
    }

    /**
     * Prepares user data for return in an XML-RPC object.
     *
     *
     * @param WP_User $user   The unprepared user object.
     * @param array   $fields The subset of user fields to return.
     * @return array The prepared user data.
     */
    protected function _prepare_user( $user, $fields ) {
        $_user = array( 'user_id' => strval( $user->ID ) );

        $user_fields = array(
            'username'          => $user->user_login,
            'first_name'        => $user->user_firstname,
            'last_name'         => $user->user_lastname,
            'registered'        => $this->_convert_date( $user->user_registered ),
            'bio'               => $user->user_description,
            'email'             => $user->user_email,
            'nickname'          => $user->nickname,
            'nicename'          => $user->user_nicename,
            'url'               => $user->user_url,
            'display_name'      => $user->display_name,
            'roles'             => $user->roles,
        );

        if ( in_array( 'all', $fields ) ) {
            $_user = array_merge( $_user, $user_fields );
        } else {
            if ( in_array( 'basic', $fields ) ) {
                $basic_fields = array( 'username', 'email', 'registered', 'display_name', 'nicename' );
                $fields = array_merge( $fields, $basic_fields );
            }
            $requested_fields = array_intersect_key( $user_fields, array_flip( $fields ) );
            $_user = array_merge( $_user, $requested_fields );
        }

        /**
         * Filters XML-RPC-prepared data for the given user.
         *
         * @since 3.5.0
         *
         * @param array   $_user  An array of user data.
         * @param WP_User $user   User object.
         * @param array   $fields An array of user fields.
         */
        return apply_filters( 'xmlrpc_prepare_user', $_user, $user, $fields );
    }

    /**
     * Create a new post for any registered post type.
     *
     * @since 3.4.0
     *
     * @link https://en.wikipedia.org/wiki/RSS_enclosure for information on RSS enclosures.
     *
     * @param array  $args {
     *     Method arguments. Note: top-level arguments must be ordered as documented.
     *
     *     @type int    $blog_id        Blog ID (unused).
     *     @type string $username       Username.
     *     @type string $password       Password.
     *     @type array  $content_struct {
     *         Content struct for adding a new post. See wp_insert_post() for information on
     *         additional post fields
     *
     *         @type string $post_type      Post type. Default 'post'.
     *         @type string $post_status    Post status. Default 'draft'
     *         @type string $post_title     Post title.
     *         @type int    $post_author    Post author ID.
     *         @type string $post_excerpt   Post excerpt.
     *         @type string $post_content   Post content.
     *         @type string $post_date_gmt  Post date in GMT.
     *         @type string $post_date      Post date.
     *         @type string $post_password  Post password (20-character limit).
     *         @type string $comment_status Post comment enabled status. Accepts 'open' or 'closed'.
     *         @type string $ping_status    Post ping status. Accepts 'open' or 'closed'.
     *         @type bool   $sticky         Whether the post should be sticky. Automatically false if
     *                                      `$post_status` is 'private'.
     *         @type int    $post_thumbnail ID of an image to use as the post thumbnail/featured image.
     *         @type array  $custom_fields  Array of meta key/value pairs to add to the post.
     *         @type array  $terms          Associative array with taxonomy names as keys and arrays
     *                                      of term IDs as values.
     *         @type array  $terms_names    Associative array with taxonomy names as keys and arrays
     *                                      of term names as values.
     *         @type array  $enclosure      {
     *             Array of feed enclosure data to add to post meta.
     *
     *             @type string $url    URL for the feed enclosure.
     *             @type int    $length Size in bytes of the enclosure.
     *             @type string $type   Mime-type for the enclosure.
     *         }
     *     }
     * }
     * @return int|IXR_Error Post ID on success, IXR_Error instance otherwise.
     */
    public function wp_newPost( $args ) {
        if ( ! $this->minimum_args( $args, 4 ) )
            return $this->error;

        $this->escape( $args );

        $username       = $args[1];
        $password       = $args[2];
        $content_struct = $args[3];

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

        // convert the date field back to IXR form
        if ( isset( $content_struct['post_date'] ) && ! ( $content_struct['post_date'] instanceof IXR_Date ) ) {
            $content_struct['post_date'] = $this->_convert_date( $content_struct['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 ( isset( $content_struct['post_date_gmt'] ) && ! ( $content_struct['post_date_gmt'] instanceof IXR_Date ) ) {
            if ( $content_struct['post_date_gmt'] == '0000-00-00 00:00:00' || isset( $content_struct['post_date'] ) ) {
                unset( $content_struct['post_date_gmt'] );
            } else {
                $content_struct['post_date_gmt'] = $this->_convert_date( $content_struct['post_date_gmt'] );
            }
        }

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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;
    }

    /**
     * Encapsulate the logic for sticking a post
     * and determining if the user has permission to do so
     *
     * @since 4.3.0
     *
     * @param array $post_data
     * @param bool  $update
     * @return void|IXR_Error
     */
    private function _toggle_sticky( $post_data, $update = false ) {
        $post_type = get_post_type_object( $post_data['post_type'] );

        // Private and password-protected posts cannot be stickied.
        if ( 'private' === $post_data['post_status'] || ! 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_data['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 make posts sticky.' ) );
            }

            $sticky = wp_validate_boolean( $post_data['sticky'] );
            if ( $sticky ) {
                stick_post( $post_data['ID'] );
            } else {
                unstick_post( $post_data['ID'] );
            }
        }
    }

    /**
     * Helper method for wp_newPost() and wp_editPost(), containing shared logic.
     *
     * @since 3.4.0
     *
     * @see wp_insert_post()
     *
     * @param WP_User         $user           The post author if post_author isn't set in $content_struct.
     * @param array|IXR_Error $content_struct Post data to insert.
     * @return IXR_Error|string
     */
    protected function _insert_post( $user, $content_struct ) {
        $defaults = array(
            'post_status'    => 'draft',
            'post_type'      => 'post',
            'post_author'    => null,
            'post_password'  => null,
            'post_excerpt'   => null,
            'post_content'   => null,
            'post_title'     => null,
            'post_date'      => null,
            'post_date_gmt'  => null,
            'post_format'    => null,
            'post_name'      => null,
            'post_thumbnail' => null,
            'post_parent'    => null,
            'ping_status'    => null,
            'comment_status' => null,
            'custom_fields'  => null,
            'terms_names'    => null,
            'terms'          => null,
            'sticky'         => null,
            'enclosure'      => null,
            'ID'             => null,
        );

        $post_data = wp_parse_args( array_intersect_key( $content_struct, $defaults ), $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( '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->create_posts ) || ! 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:
                if ( ! get_post_status_object( $post_data['post_status'] ) )
                    $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, __( 'Sorry, 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();
        }

        // Default to not flagging the post date to be edited unless it's intentional.
        $post_data['edit_date'] = false;

        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' );

            // Flag the post date to be edited.
            $post_data['edit_date'] = true;
        }

        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' ) {
            $error = $this->_toggle_sticky( $post_data, $update );
            if ( $error ) {
                return $error;
            }
        }

        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 ( ! get_post( absint( $post_data['post_thumbnail'] ) ) )
                return new IXR_Error( 404, __( 'Invalid attachment ID.' ) );
            set_post_thumbnail( $post_ID, $post_data['post_thumbnail'] );
            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];
                    $terms[ $taxonomy ] = array();
                    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'] );
        }

        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'] );

        /**
         * Filters post data array to be inserted via XML-RPC.
         *
         * @since 3.4.0
         *
         * @param array $post_data      Parsed array of post data.
         * @param array $content_struct Post data array.
         */
        $post_data = apply_filters( 'xmlrpc_wp_insert_post_data', $post_data, $content_struct );

        $post_ID = $update ? wp_update_post( $post_data, true ) : 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.' ) );

        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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id        Blog ID (unused).
     *     @type string $username       Username.
     *     @type string $password       Password.
     *     @type int    $post_id        Post ID.
     *     @type array  $content_struct Extra content arguments.
     * }
     * @return true|IXR_Error True on success, IXR_Error on failure.
     */
    public function wp_editPost( $args ) {
        if ( ! $this->minimum_args( $args, 5 ) )
            return $this->error;

        $this->escape( $args );

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

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

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

        $post = get_post( $post_id, ARRAY_A );

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

        if ( isset( $content_struct['if_not_modified_since'] ) ) {
            // If the post has been modified since the date provided, return an error.
            if ( mysql2date( 'U', $post['post_modified_gmt'] ) > $content_struct['if_not_modified_since']->getTimestamp() ) {
                return new IXR_Error( 409, __( 'There is a revision of this post that is more recent.' ) );
            }
        }

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

        /*
         * 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
     *
     * @see wp_delete_post()
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id  Blog ID (unused).
     *     @type string $username Username.
     *     @type string $password Password.
     *     @type int    $post_id  Post ID.
     * }
     * @return true|IXR_Error True on success, IXR_Error instance on failure.
     */
    public function wp_deletePost( $args ) {
        if ( ! $this->minimum_args( $args, 4 ) )
            return $this->error;

        $this->escape( $args );

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

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

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

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

        if ( ! current_user_can( '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'.
     *
     * @see get_post()
     *
     * @param array $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id  Blog ID (unused).
     *     @type string $username Username.
     *     @type string $password Password.
     *     @type int    $post_id  Post ID.
     *     @type array  $fields   The subset of post type fields to return.
     * }
     * @return array|IXR_Error 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'
     */
    public function wp_getPost( $args ) {
        if ( ! $this->minimum_args( $args, 4 ) )
            return $this->error;

        $this->escape( $args );

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

        if ( isset( $args[4] ) ) {
            $fields = $args[4];
        } else {
            /**
             * Filters the list of post query fields used by the given XML-RPC method.
             *
             * @since 3.4.0
             *
             * @param array  $fields Array of post fields. Default array contains 'post', 'terms', and 'custom_fields'.
             * @param string $method Method name.
             */
            $fields = apply_filters( 'xmlrpc_default_post_fields', array( 'post', 'terms', 'custom_fields' ), 'wp.getPost' );
        }

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

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

        $post = get_post( $post_id, ARRAY_A );

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

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

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

    /**
     * Retrieve posts.
     *
     * @since 3.4.0
     *
     * @see wp_get_recent_posts()
     * @see wp_getPost() for more on `$fields`
     * @see get_posts() for more on `$filter` values
     *
     * @param array $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id  Blog ID (unused).
     *     @type string $username Username.
     *     @type string $password Password.
     *     @type array  $filter   Optional. Modifies the query used to retrieve posts. Accepts 'post_type',
     *                            'post_status', 'number', 'offset', 'orderby', 's', and 'order'.
     *                            Default empty array.
     *     @type array  $fields   Optional. The subset of post type fields to return in the response array.
     * }
     * @return array|IXR_Error Array contains a collection of posts.
     */
    public function wp_getPosts( $args ) {
        if ( ! $this->minimum_args( $args, 3 ) )
            return $this->error;

        $this->escape( $args );

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

        if ( isset( $args[4] ) ) {
            $fields = $args[4];
        } else {
            /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
            $fields = apply_filters( 'xmlrpc_default_post_fields', array( 'post', 'terms', 'custom_fields' ), 'wp.getPosts' );
        }

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

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        do_action( 'xmlrpc_call', '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, __( 'Invalid post type.' ) );
        } 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['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'];
        }

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

        $posts_list = wp_get_recent_posts( $query );

        if ( ! $posts_list )
            return array();

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

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

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

        return $struct;
    }

    /**
     * Create a new term.
     *
     * @since 3.4.0
     *
     * @see wp_insert_term()
     *
     * @param array $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id        Blog ID (unused).
     *     @type string $username       Username.
     *     @type string $password       Password.
     *     @type array  $content_struct Content struct for adding a new term. The struct must contain
     *                                  the term 'name' and 'taxonomy'. Optional accepted values include
     *                                  'parent', 'description', and 'slug'.
     * }
     * @return int|IXR_Error The term ID on success, or an IXR_Error object on failure.
     */
    public function wp_newTerm( $args ) {
        if ( ! $this->minimum_args( $args, 4 ) )
            return $this->error;

        $this->escape( $args );

        $username       = $args[1];
        $password       = $args[2];
        $content_struct = $args[3];

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

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        do_action( 'xmlrpc_call', '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->edit_terms ) ) {
            return new IXR_Error( 401, __( 'Sorry, 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.' ) );

        // Add term meta.
        if ( isset( $content_struct['custom_fields'] ) ) {
            $this->set_term_custom_fields( $term['term_id'], $content_struct['custom_fields'] );
        }

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

    /**
     * Edit a term.
     *
     * @since 3.4.0
     *
     * @see wp_update_term()
     *
     * @param array $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id        Blog ID (unused).
     *     @type string $username       Username.
     *     @type string $password       Password.
     *     @type int    $term_id        Term ID.
     *     @type array  $content_struct Content struct for editing a term. The struct must contain the
     *                                  term ''taxonomy'. Optional accepted values include 'name', 'parent',
     *                                  'description', and 'slug'.
     * }
     * @return true|IXR_Error True on success, IXR_Error instance on failure.
     */
    public function wp_editTerm( $args ) {
        if ( ! $this->minimum_args( $args, 5 ) )
            return $this->error;

        $this->escape( $args );

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

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

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

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

        $taxonomy = get_taxonomy( $content_struct['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 ( ! current_user_can( 'edit_term', $term_id ) ) {
            return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this term.' ) );
        }

        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 ( ! empty( $content_struct['parent'] ) ) {
            if ( ! $taxonomy['hierarchical'] )
                return new IXR_Error( 403, __( 'Cannot set parent term, 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_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.' ) );

        // Update term meta.
        if ( isset( $content_struct['custom_fields'] ) ) {
            $this->set_term_custom_fields( $term_id, $content_struct['custom_fields'] );
        }

        return true;
    }

    /**
     * Delete a term.
     *
     * @since 3.4.0
     *
     * @see wp_delete_term()
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id      Blog ID (unused).
     *     @type string $username     Username.
     *     @type string $password     Password.
     *     @type string $taxnomy_name Taxonomy name.
     *     @type int    $term_id      Term ID.
     * }
     * @return bool|IXR_Error True on success, IXR_Error instance on failure.
     */
    public function wp_deleteTerm( $args ) {
        if ( ! $this->minimum_args( $args, 5 ) )
            return $this->error;

        $this->escape( $args );

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

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

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

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

        $taxonomy = get_taxonomy( $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.' ) );

        if ( ! current_user_can( 'delete_term', $term_id ) ) {
            return new IXR_Error( 401, __( 'Sorry, you are not allowed to delete this term.' ) );
        }

        $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
     *
     * @see get_term()
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id  Blog ID (unused).
     *     @type string $username Username.
     *     @type string $password Password.
     *     @type string $taxnomy  Taxonomy name.
     *     @type string $term_id  Term ID.
     * }
     * @return array|IXR_Error IXR_Error on failure, array on success, containing:
     *  - 'term_id'
     *  - 'name'
     *  - 'slug'
     *  - 'term_group'
     *  - 'term_taxonomy_id'
     *  - 'taxonomy'
     *  - 'description'
     *  - 'parent'
     *  - 'count'
     */
    public function wp_getTerm( $args ) {
        if ( ! $this->minimum_args( $args, 5 ) )
            return $this->error;

        $this->escape( $args );

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

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

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

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

        $taxonomy = get_taxonomy( $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.' ) );

        if ( ! current_user_can( 'assign_term', $term_id ) ) {
            return new IXR_Error( 401, __( 'Sorry, you are not allowed to assign this term.' ) );
        }

        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'.
     *
     * @see get_terms()
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id  Blog ID (unused).
     *     @type string $username Username.
     *     @type string $password Password.
     *     @type string $taxnomy  Taxonomy name.
     *     @type array  $filter   Optional. Modifies the query used to retrieve posts. Accepts 'number',
     *                            'offset', 'orderby', 'order', 'hide_empty', and 'search'. Default empty array.
     * }
     * @return array|IXR_Error An associative array of terms data on success, IXR_Error instance otherwise.
     */
    public function wp_getTerms( $args ) {
        if ( ! $this->minimum_args( $args, 4 ) )
            return $this->error;

        $this->escape( $args );

        $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;

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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, __( 'Sorry, 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
     *
     * @see get_taxonomy()
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id  Blog ID (unused).
     *     @type string $username Username.
     *     @type string $password Password.
     *     @type string $taxnomy  Taxonomy name.
     *     @type array  $fields   Optional. Array of taxonomy fields to limit to in the return.
     *                            Accepts 'labels', 'cap', 'menu', and 'object_type'.
     *                            Default empty array.
     * }
     * @return array|IXR_Error An array of taxonomy data on success, IXR_Error instance otherwise.
     */
    public function wp_getTaxonomy( $args ) {
        if ( ! $this->minimum_args( $args, 4 ) )
            return $this->error;

        $this->escape( $args );

        $username = $args[1];
        $password = $args[2];
        $taxonomy = $args[3];

        if ( isset( $args[4] ) ) {
            $fields = $args[4];
        } else {
            /**
             * Filters the taxonomy query fields used by the given XML-RPC method.
             *
             * @since 3.4.0
             *
             * @param array  $fields An array of taxonomy fields to retrieve.
             * @param string $method The method name.
             */
            $fields = apply_filters( 'xmlrpc_default_taxonomy_fields', array( 'labels', 'cap', 'object_type' ), 'wp.getTaxonomy' );
        }

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

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        do_action( 'xmlrpc_call', '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, __( 'Sorry, you are not allowed to assign terms in this taxonomy.' ) );

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

    /**
     * Retrieve all taxonomies.
     *
     * @since 3.4.0
     *
     * @see get_taxonomies()
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id  Blog ID (unused).
     *     @type string $username Username.
     *     @type string $password Password.
     *     @type array  $filter   Optional. An array of arguments for retrieving taxonomies.
     *     @type array  $fields   Optional. The subset of taxonomy fields to return.
     * }
     * @return array|IXR_Error An associative array of taxonomy data with returned fields determined
     *                         by `$fields`, or an IXR_Error instance on failure.
     */
    public function wp_getTaxonomies( $args ) {
        if ( ! $this->minimum_args( $args, 3 ) )
            return $this->error;

        $this->escape( $args );

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

        if ( isset( $args[4] ) ) {
            $fields = $args[4];
        } else {
            /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
            $fields = apply_filters( 'xmlrpc_default_taxonomy_fields', array( 'labels', 'cap', 'object_type' ), 'wp.getTaxonomies' );
        }

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

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        do_action( 'xmlrpc_call', '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 a user.
     *
     * The optional $fields parameter specifies what fields will be included
     * in the response array. This should be a list of field names. 'user_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 'basic' and 'all'.
     *
     * @uses get_userdata()
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type int    $user_id
     *     @type array  $fields (optional)
     * }
     * @return array|IXR_Error Array contains (based on $fields parameter):
     *  - 'user_id'
     *  - 'username'
     *  - 'first_name'
     *  - 'last_name'
     *  - 'registered'
     *  - 'bio'
     *  - 'email'
     *  - 'nickname'
     *  - 'nicename'
     *  - 'url'
     *  - 'display_name'
     *  - 'roles'
     */
    public function wp_getUser( $args ) {
        if ( ! $this->minimum_args( $args, 4 ) )
            return $this->error;

        $this->escape( $args );

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

        if ( isset( $args[4] ) ) {
            $fields = $args[4];
        } else {
            /**
             * Filters the default user query fields used by the given XML-RPC method.
             *
             * @since 3.5.0
             *
             * @param array  $fields User query fields for given method. Default 'all'.
             * @param string $method The method name.
             */
            $fields = apply_filters( 'xmlrpc_default_user_fields', array( 'all' ), 'wp.getUser' );
        }

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

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

        if ( ! current_user_can( 'edit_user', $user_id ) )
            return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this user.' ) );

        $user_data = get_userdata( $user_id );

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

        return $this->_prepare_user( $user_data, $fields );
    }

    /**
     * Retrieve users.
     *
     * The optional $filter parameter modifies the query used to retrieve users.
     * Accepted keys are 'number' (default: 50), 'offset' (default: 0), 'role',
     * 'who', 'orderby', and 'order'.
     *
     * The optional $fields parameter specifies what fields will be included
     * in the response array.
     *
     * @uses get_users()
     * @see wp_getUser() for more on $fields and return values
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $filter (optional)
     *     @type array  $fields (optional)
     * }
     * @return array|IXR_Error users data
     */
    public function wp_getUsers( $args ) {
        if ( ! $this->minimum_args( $args, 3 ) )
            return $this->error;

        $this->escape( $args );

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

        if ( isset( $args[4] ) ) {
            $fields = $args[4];
        } else {
            /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
            $fields = apply_filters( 'xmlrpc_default_user_fields', array( 'all' ), 'wp.getUsers' );
        }

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

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

        if ( ! current_user_can( 'list_users' ) )
            return new IXR_Error( 401, __( 'Sorry, you are not allowed to list users.' ) );

        $query = array( 'fields' => 'all_with_meta' );

        $query['number'] = ( isset( $filter['number'] ) ) ? absint( $filter['number'] ) : 50;
        $query['offset'] = ( isset( $filter['offset'] ) ) ? absint( $filter['offset'] ) : 0;

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

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

        if ( isset( $filter['role'] ) ) {
            if ( get_role( $filter['role'] ) === null )
                return new IXR_Error( 403, __( 'Invalid role.' ) );

            $query['role'] = $filter['role'];
        }

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

        $users = get_users( $query );

        $_users = array();
        foreach ( $users as $user_data ) {
            if ( current_user_can( 'edit_user', $user_data->ID ) )
                $_users[] = $this->_prepare_user( $user_data, $fields );
        }
        return $_users;
    }

    /**
     * Retrieve information about the requesting user.
     *
     * @uses get_userdata()
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $fields (optional)
     * }
     * @return array|IXR_Error (@see wp_getUser)
     */
    public function wp_getProfile( $args ) {
        if ( ! $this->minimum_args( $args, 3 ) )
            return $this->error;

        $this->escape( $args );

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

        if ( isset( $args[3] ) ) {
            $fields = $args[3];
        } else {
            /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
            $fields = apply_filters( 'xmlrpc_default_user_fields', array( 'all' ), 'wp.getProfile' );
        }

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

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

        if ( ! current_user_can( 'edit_user', $user->ID ) )
            return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit your profile.' ) );

        $user_data = get_userdata( $user->ID );

        return $this->_prepare_user( $user_data, $fields );
    }

    /**
     * Edit user's profile.
     *
     * @uses wp_update_user()
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $content_struct It can optionally contain:
     *      - 'first_name'
     *      - 'last_name'
     *      - 'website'
     *      - 'display_name'
     *      - 'nickname'
     *      - 'nicename'
     *      - 'bio'
     * }
     * @return true|IXR_Error True, on success.
     */
    public function wp_editProfile( $args ) {
        if ( ! $this->minimum_args( $args, 4 ) )
            return $this->error;

        $this->escape( $args );

        $username       = $args[1];
        $password       = $args[2];
        $content_struct = $args[3];

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

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

        if ( ! current_user_can( 'edit_user', $user->ID ) )
            return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit your profile.' ) );

        // holds data of the user
        $user_data = array();
        $user_data['ID'] = $user->ID;

        // only set the user details if it was given
        if ( isset( $content_struct['first_name'] ) )
            $user_data['first_name'] = $content_struct['first_name'];

        if ( isset( $content_struct['last_name'] ) )
            $user_data['last_name'] = $content_struct['last_name'];

        if ( isset( $content_struct['url'] ) )
            $user_data['user_url'] = $content_struct['url'];

        if ( isset( $content_struct['display_name'] ) )
            $user_data['display_name'] = $content_struct['display_name'];

        if ( isset( $content_struct['nickname'] ) )
            $user_data['nickname'] = $content_struct['nickname'];

        if ( isset( $content_struct['nicename'] ) )
            $user_data['user_nicename'] = $content_struct['nicename'];

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

        $result = wp_update_user( $user_data );

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

        if ( ! $result )
            return new IXR_Error( 500, __( 'Sorry, the user cannot be updated.' ) );

        return true;
    }

    /**
     * Retrieve page.
     *
     * @since 2.2.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type int    $page_id
     *     @type string $username
     *     @type string $password
     * }
     * @return array|IXR_Error
     */
    public function wp_getPage( $args ) {
        $this->escape( $args );

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

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

        $page = get_post($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 are not allowed to edit this page.' ) );

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type int    $num_pages
     * }
     * @return array|IXR_Error
     */
    public function wp_getPages( $args ) {
        $this->escape( $args );

        $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 are not allowed to edit pages.' ) );

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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;
        }

        return array();
    }

    /**
     * Create new page.
     *
     * @since 2.2.0
     *
     * @see wp_xmlrpc_server::mw_newPost()
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $content_struct
     * }
     * @return int|IXR_Error
     */
    public function wp_newPage( $args ) {
        // Items not escaped here will be escaped in newPost.
        $username = $this->escape( $args[1] );
        $password = $this->escape( $args[2] );

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

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        do_action( 'xmlrpc_call', '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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type int    $page_id
     * }
     * @return true|IXR_Error True, if success.
     */
    public function wp_deletePage( $args ) {
        $this->escape( $args );

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

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

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

        // Get the current page based on the page_id and
        // make sure it is a page and not a post.
        $actual_page = get_post($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 are not allowed 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.' ) );

        /**
         * Fires after a page has been successfully deleted via XML-RPC.
         *
         * @since 3.4.0
         *
         * @param int   $page_id ID of the deleted page.
         * @param array $args    An array of arguments 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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type int    $page_id
     *     @type string $username
     *     @type string $password
     *     @type string $content
     *     @type string $publish
     * }
     * @return array|IXR_Error
     */
    public function wp_editPage( $args ) {
        // Items will be escaped in mw_editPost.
        $page_id  = (int) $args[1];
        $username = $args[2];
        $password = $args[3];
        $content  = $args[4];
        $publish  = $args[5];

        $escaped_username = $this->escape( $username );
        $escaped_password = $this->escape( $password );

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

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

        // Get the page data and make sure it is a page.
        $actual_page = get_post($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 are not allowed 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
     *
     * @global wpdb $wpdb WordPress database abstraction object.
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     * }
     * @return array|IXR_Error
     */
    public function wp_getPageList( $args ) {
        global $wpdb;

        $this->escape( $args );

        $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 are not allowed to edit pages.' ) );

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     * }
     * @return array|IXR_Error
     */
    public function wp_getAuthors( $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 are not allowed to edit posts.' ) );

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     * }
     * @return array|IXR_Error
     */
    public function wp_getTags( $args ) {
        $this->escape( $args );

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

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

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

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

        $tags = array();

        if ( $all_tags = get_tags() ) {
            foreach ( (array) $all_tags as $tag ) {
                $struct = array();
                $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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $category
     * }
     * @return int|IXR_Error Category ID.
     */
    public function wp_newCategory( $args ) {
        $this->escape( $args );

        $username = $args[1];
        $password = $args[2];
        $category = $args[3];

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

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        do_action( 'xmlrpc_call', '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 are not allowed 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.'));
        }

        /**
         * Fires after a new category has been successfully created via XML-RPC.
         *
         * @since 3.4.0
         *
         * @param int   $cat_id ID of the new category.
         * @param array $args   An array of new category arguments.
         */
        do_action( 'xmlrpc_call_success_wp_newCategory', $cat_id, $args );

        return $cat_id;
    }

    /**
     * Remove category.
     *
     * @since 2.5.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type int    $category_id
     * }
     * @return bool|IXR_Error See wp_delete_term() for return info.
     */
    public function wp_deleteCategory( $args ) {
        $this->escape( $args );

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

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

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

        if ( ! current_user_can( 'delete_term', $category_id ) ) {
            return new IXR_Error( 401, __( 'Sorry, you are not allowed to delete this category.' ) );
        }

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

        if ( true == $status ) {
            /**
             * Fires after a category has been successfully deleted via XML-RPC.
             *
             * @since 3.4.0
             *
             * @param int   $category_id ID of the deleted category.
             * @param array $args        An array of arguments to delete the category.
             */
            do_action( 'xmlrpc_call_success_wp_deleteCategory', $category_id, $args );
        }

        return $status;
    }

    /**
     * Retrieve category list.
     *
     * @since 2.2.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $category
     *     @type int    $max_results
     * }
     * @return array|IXR_Error
     */
    public function wp_suggestCategories( $args ) {
        $this->escape( $args );

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

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type int    $comment_id
     * }
     * @return array|IXR_Error
     */
    public function wp_getComment($args) {
        $this->escape($args);

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

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

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

        if ( ! $comment = 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, __( 'Sorry, you are not allowed to moderate or edit this comment.' ) );
        }

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

    /**
     * Retrieve comments.
     *
     * Besides the common blog_id (unused), 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 WP_Query::query() for more.
     *
     * @since 2.7.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $struct
     * }
     * @return array|IXR_Error Contains a collection of comments. See wp_xmlrpc_server::wp_getComment() for a description of each item contents
     */
    public function wp_getComments( $args ) {
        $this->escape( $args );

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

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

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

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

        if ( ! current_user_can( 'moderate_comments' ) && 'approve' !== $status ) {
            return new IXR_Error( 401, __( 'Invalid comment status.' ) );
        }

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

        $post_type = '';
        if ( isset( $struct['post_type'] ) ) {
            $post_type_object = get_post_type_object( $struct['post_type'] );
            if ( ! $post_type_object || ! post_type_supports( $post_type_object->name, 'comments' ) ) {
                return new IXR_Error( 404, __( 'Invalid post type.' ) );
            }
            $post_type = $struct['post_type'];
        }

        $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,
            'post_type' => $post_type,
        ) );

        $comments_struct = array();
        if ( is_array( $comments ) ) {
            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 wp_delete_comment() for more information on this behavior.
     *
     * @since 2.7.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type int    $comment_ID
     * }
     * @return bool|IXR_Error See wp_delete_comment().
     */
    public function wp_deleteComment( $args ) {
        $this->escape($args);

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

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

        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, __( 'Sorry, you are not allowed to delete this comment.' ) );
        }

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

        $status = wp_delete_comment( $comment_ID );

        if ( $status ) {
            /**
             * Fires after a comment has been successfully deleted via XML-RPC.
             *
             * @since 3.4.0
             *
             * @param int   $comment_ID ID of the deleted comment.
             * @param array $args       An array of arguments to delete the comment.
             */
            do_action( 'xmlrpc_call_success_wp_deleteComment', $comment_ID, $args );
        }

        return $status;
    }

    /**
     * Edit comment.
     *
     * Besides the common blog_id (unused), 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 get_comment_statuses() for more details
     *
     * @since 2.7.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type int    $comment_ID
     *     @type array  $content_struct
     * }
     * @return true|IXR_Error True, on success.
     */
    public function wp_editComment( $args ) {
        $this->escape( $args );

        $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 ( ! 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, __( 'Sorry, you are not allowed to moderate or edit this comment.' ) );
        }

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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.'));

        /**
         * Fires after a comment has been successfully updated via XML-RPC.
         *
         * @since 3.4.0
         *
         * @param int   $comment_ID ID of the updated comment.
         * @param array $args       An array of arguments to update the comment.
         */
        do_action( 'xmlrpc_call_success_wp_editComment', $comment_ID, $args );

        return true;
    }

    /**
     * Create new comment.
     *
     * @since 2.7.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int        $blog_id (unused)
     *     @type string     $username
     *     @type string     $password
     *     @type string|int $post
     *     @type array      $content_struct
     * }
     * @return int|IXR_Error See wp_new_comment().
     */
    public function wp_newComment($args) {
        $this->escape($args);

        $username       = $args[1];
        $password       = $args[2];
        $post           = $args[3];
        $content_struct = $args[4];

        /**
         * Filters whether to allow anonymous comments over XML-RPC.
         *
         * @since 2.7.0
         *
         * @param bool $allow Whether to allow anonymous commenting via XML-RPC.
         *                    Default false.
         */
        $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.' ) );
            } elseif ( ! $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.' ) );
        }

        if ( ! comments_open( $post_id ) ) {
            return new IXR_Error( 403, __( 'Sorry, comments are closed for this item.' ) );
        }

        if ( empty( $content_struct['content'] ) ) {
            return new IXR_Error( 403, __( 'Comment is required.' ) );
        }

        $comment = array(
            'comment_post_ID' => $post_id,
            'comment_content' => $content_struct['content'],
        );

        if ( $logged_in ) {
            $display_name = $user->display_name;
            $user_email = $user->user_email;
            $user_url = $user->user_url;

            $comment['comment_author'] = $this->escape( $display_name );
            $comment['comment_author_email'] = $this->escape( $user_email );
            $comment['comment_author_url'] = $this->escape( $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;

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

        $comment_ID = wp_new_comment( $comment, true );
        if ( is_wp_error( $comment_ID ) ) {
            return new IXR_Error( 403, $comment_ID->get_error_message() );
        }

        if ( ! $comment_ID ) {
            return new IXR_Error( 403, __( 'An unidentified error has occurred.' ) );
        }

        /**
         * Fires after a new comment has been successfully created via XML-RPC.
         *
         * @since 3.4.0
         *
         * @param int   $comment_ID ID of the new comment.
         * @param array $args       An array of new comment arguments.
         */
        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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     * }
     * @return array|IXR_Error
     */
    public function wp_getCommentStatusList( $args ) {
        $this->escape( $args );

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

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

        if ( ! current_user_can( 'publish_posts' ) ) {
            return new IXR_Error( 403, __( 'Sorry, you are not allowed access to details about this site.' ) );
        }

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

        return get_comment_statuses();
    }

    /**
     * Retrieve comment count.
     *
     * @since 2.5.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type int    $post_id
     * }
     * @return array|IXR_Error
     */
    public function wp_getCommentCount( $args ) {
        $this->escape( $args );

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

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

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

        if ( ! current_user_can( 'edit_post', $post_id ) ) {
            return new IXR_Error( 403, __( 'Sorry, you are not allowed access to details of this post.' ) );
        }

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     * }
     * @return array|IXR_Error
     */
    public function wp_getPostStatusList( $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( 403, __( 'Sorry, you are not allowed access to details about this site.' ) );

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

        return get_post_statuses();
    }

    /**
     * Retrieve page statuses.
     *
     * @since 2.5.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     * }
     * @return array|IXR_Error
     */
    public function wp_getPageStatusList( $args ) {
        $this->escape( $args );

        $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, __( 'Sorry, you are not allowed access to details about this site.' ) );

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

        return get_page_statuses();
    }

    /**
     * Retrieve page templates.
     *
     * @since 2.6.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     * }
     * @return array|IXR_Error
     */
    public function wp_getPageTemplates( $args ) {
        $this->escape( $args );

        $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, __( 'Sorry, 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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $options
     * }
     * @return array|IXR_Error
     */
    public function wp_getOptions( $args ) {
        $this->escape( $args );

        $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 $options Options to retrieve.
     * @return array
     */
    public function _getOptions($options) {
        $data = array();
        $can_manage = current_user_can( 'manage_options' );
        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']);
                }

                if ( ! $can_manage )
                    $data[$option]['readonly'] = true;
            }
        }

        return $data;
    }

    /**
     * Update blog options.
     *
     * @since 2.6.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $options
     * }
     * @return array|IXR_Error
     */
    public function wp_setOptions( $args ) {
        $this->escape( $args );

        $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, __( 'Sorry, you are not allowed to update options.' ) );

        $option_names = array();
        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'], wp_unslash( $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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type int    $attachment_id
     * }
     * @return array|IXR_Error Associative array contains:
     *  - 'date_created_gmt'
     *  - 'parent'
     *  - 'link'
     *  - 'thumbnail'
     *  - 'title'
     *  - 'caption'
     *  - 'description'
     *  - 'metadata'
     */
    public function wp_getMediaItem( $args ) {
        $this->escape( $args );

        $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, __( 'Sorry, you are not allowed to upload files.' ) );

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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 (unused), 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 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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $struct
     * }
     * @return array|IXR_Error Contains a collection of media items. See wp_xmlrpc_server::wp_getMediaItem() for a description of each item contents
     */
    public function wp_getMediaLibrary($args) {
        $this->escape($args);

        $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, __( 'Sorry, you are not allowed to upload files.' ) );

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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 3.1.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     * }
     * @return array|IXR_Error List of post formats, otherwise IXR_Error object.
     */
    public function wp_getPostFormats( $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( 403, __( 'Sorry, you are not allowed access to details about this site.' ) );

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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 = array();
                    $data['all'] = $formats;
                    $data['supported'] = $supported[0];

                    $formats = $data;
                }
            }
        }

        return $formats;
    }

    /**
     * Retrieves a post type
     *
     * @since 3.4.0
     *
     * @see get_post_type_object()
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type string $post_type_name
     *     @type array  $fields (optional)
     * }
     * @return array|IXR_Error Array contains:
     *  - 'labels'
     *  - 'description'
     *  - 'capability_type'
     *  - 'cap'
     *  - 'map_meta_cap'
     *  - 'hierarchical'
     *  - 'menu_position'
     *  - 'taxonomies'
     *  - 'supports'
     */
    public function wp_getPostType( $args ) {
        if ( ! $this->minimum_args( $args, 4 ) )
            return $this->error;

        $this->escape( $args );

        $username       = $args[1];
        $password       = $args[2];
        $post_type_name = $args[3];

        if ( isset( $args[4] ) ) {
            $fields = $args[4];
        } else {
            /**
             * Filters the default query fields used by the given XML-RPC method.
             *
             * @since 3.4.0
             *
             * @param array  $fields An array of post type query fields for the given method.
             * @param string $method The method name.
             */
            $fields = apply_filters( 'xmlrpc_default_posttype_fields', array( 'labels', 'cap', 'taxonomies' ), 'wp.getPostType' );
        }

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

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        do_action( 'xmlrpc_call', '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 posts in this post type.' ) );

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

    /**
     * Retrieves a post types
     *
     * @since 3.4.0
     *
     * @see get_post_types()
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $filter (optional)
     *     @type array  $fields (optional)
     * }
     * @return array|IXR_Error
     */
    public function wp_getPostTypes( $args ) {
        if ( ! $this->minimum_args( $args, 3 ) )
            return $this->error;

        $this->escape( $args );

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

        if ( isset( $args[4] ) ) {
            $fields = $args[4];
        } else {
            /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
            $fields = apply_filters( 'xmlrpc_default_posttype_fields', array( 'labels', 'cap', 'taxonomies' ), 'wp.getPostTypes' );
        }

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

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

    /**
     * Retrieve revisions for a specific post.
     *
     * @since 3.5.0
     *
     * The optional $fields parameter specifies what fields will be included
     * in the response array.
     *
     * @uses wp_get_post_revisions()
     * @see wp_getPost() for more on $fields
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type int    $post_id
     *     @type array  $fields (optional)
     * }
     * @return array|IXR_Error contains a collection of posts.
     */
    public function wp_getRevisions( $args ) {
        if ( ! $this->minimum_args( $args, 4 ) )
            return $this->error;

        $this->escape( $args );

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

        if ( isset( $args[4] ) ) {
            $fields = $args[4];
        } else {
            /**
             * Filters the default revision query fields used by the given XML-RPC method.
             *
             * @since 3.5.0
             *
             * @param array  $field  An array of revision query fields.
             * @param string $method The method name.
             */
            $fields = apply_filters( 'xmlrpc_default_revision_fields', array( 'post_date', 'post_date_gmt' ), 'wp.getRevisions' );
        }

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

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

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

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

        // Check if revisions are enabled.
        if ( ! wp_revisions_enabled( $post ) )
            return new IXR_Error( 401, __( 'Sorry, revisions are disabled.' ) );

        $revisions = wp_get_post_revisions( $post_id );

        if ( ! $revisions )
            return array();

        $struct = array();

        foreach ( $revisions as $revision ) {
            if ( ! current_user_can( 'read_post', $revision->ID ) )
                continue;

            // Skip autosaves
            if ( wp_is_post_autosave( $revision ) )
                continue;

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

        return $struct;
    }

    /**
     * Restore a post revision
     *
     * @since 3.5.0
     *
     * @uses wp_restore_post_revision()
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type int    $revision_id
     * }
     * @return bool|IXR_Error false if there was an error restoring, true if success.
     */
    public function wp_restoreRevision( $args ) {
        if ( ! $this->minimum_args( $args, 3 ) )
            return $this->error;

        $this->escape( $args );

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

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

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

        if ( ! $revision = wp_get_post_revision( $revision_id ) )
            return new IXR_Error( 404, __( 'Invalid post ID.' ) );

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

        if ( ! $post = get_post( $revision->post_parent ) )
            return new IXR_Error( 404, __( 'Invalid post ID.' ) );

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

        // Check if revisions are disabled.
        if ( ! wp_revisions_enabled( $post ) )
            return new IXR_Error( 401, __( 'Sorry, revisions are disabled.' ) );

        $post = wp_restore_post_revision( $revision_id );

        return (bool) $post;
    }

    /* Blogger API functions.
     * specs on http://plant.blogger.com/api and https://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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     * }
     * @return array|IXR_Error
     */
    public function blogger_getUsersBlogs($args) {
        if ( ! $this->minimum_args( $args, 3 ) ) {
            return $this->error;
        }

        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;

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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', 'rpc' ),
        );

        return array($struct);
    }

    /**
     * Private function for retrieving a users blogs for multisite setups
     *
     * @since 3.0.0
     *
     * @param array $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type string $username Username.
     *     @type string $password Password.
     * }
     * @return array|IXR_Error
     */
    protected function _multisite_getUsersBlogs( $args ) {
        $current_blog = get_site();

        $domain = $current_blog->domain;
        $path = $current_blog->path . 'xmlrpc.php';

        $rpc = new IXR_Client( set_url_scheme( "http://{$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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     * }
     * @return array|IXR_Error
     */
    public function 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 are not allowed to access user data on this site.' ) );

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type int    $post_ID
     *     @type string $username
     *     @type string $password
     * }
     * @return array|IXR_Error
     */
    public 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;

        $post_data = get_post($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 are not allowed to edit this post.' ) );

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

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

        $content  = '<title>'.wp_unslash($post_data['post_title']).'</title>';
        $content .= '<category>'.$categories.'</category>';
        $content .= wp_unslash($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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type string $appkey (unused)
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type int    $numberposts (optional)
     * }
     * @return array|IXR_Error
     */
    public function blogger_getRecentPosts( $args ) {

        $this->escape($args);

        // $args[0] = appkey - ignored
        $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;

        if ( ! current_user_can( 'edit_posts' ) )
            return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit posts.' ) );

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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;
        }

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

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

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

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

        return $recent_posts;
    }

    /**
     * Deprecated.
     *
     * @since 1.5.0
     * @deprecated 3.5.0
     *
     * @param array $args Unused.
     * @return IXR_Error Error object.
     */
    public function blogger_getTemplate($args) {
        return new IXR_Error( 403, __('Sorry, that file cannot be edited.' ) );
    }

    /**
     * Deprecated.
     *
     * @since 1.5.0
     * @deprecated 3.5.0
     *
     * @param array $args Unused.
     * @return IXR_Error Error object.
     */
    public function blogger_setTemplate($args) {
        return new IXR_Error( 403, __('Sorry, that file cannot be edited.' ) );
    }

    /**
     * Creates new post.
     *
     * @since 1.5.0
     *
     * @param array $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type string $appkey (unused)
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type string $content
     *     @type string $publish
     * }
     * @return int|IXR_Error
     */
    public function blogger_newPost( $args ) {
        $this->escape( $args );

        $username = $args[2];
        $password = $args[3];
        $content  = $args[4];
        $publish  = $args[5];

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

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

        $cap = ($publish) ? 'publish_posts' : 'edit_posts';
        if ( ! current_user_can( get_post_type_object( 'post' )->cap->create_posts ) || !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('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.'));

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

        /**
         * Fires after a new post has been successfully created via the XML-RPC Blogger API.
         *
         * @since 3.4.0
         *
         * @param int   $post_ID ID of the new post.
         * @param array $args    An array of new post arguments.
         */
        do_action( 'xmlrpc_call_success_blogger_newPost', $post_ID, $args );

        return $post_ID;
    }

    /**
     * Edit a post.
     *
     * @since 1.5.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type int    $post_ID
     *     @type string $username
     *     @type string $password
     *     @type string $content
     *     @type bool   $publish
     * }
     * @return true|IXR_Error true when done.
     */
    public 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;
        }

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

        $actual_post = get_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 are not allowed to edit this post.'));
        }
        if ( 'publish' == $actual_post['post_status'] && ! current_user_can( 'publish_posts' ) ) {
            return new IXR_Error( 401, __( 'Sorry, you are not allowed to publish this post.' ) );
        }

        $postdata = array();
        $postdata['ID'] = $actual_post['ID'];
        $postdata['post_content'] = xmlrpc_removepostdata( $content );
        $postdata['post_title'] = xmlrpc_getposttitle( $content );
        $postdata['post_category'] = xmlrpc_getpostcategory( $content );
        $postdata['post_status'] = $actual_post['post_status'];
        $postdata['post_excerpt'] = $actual_post['post_excerpt'];
        $postdata['post_status'] = $publish ? 'publish' : 'draft';

        $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( $actual_post['ID'], $postdata['post_content'] );

        /**
         * Fires after a post has been successfully updated via the XML-RPC Blogger API.
         *
         * @since 3.4.0
         *
         * @param int   $post_ID ID of the updated post.
         * @param array $args    An array of arguments for the post to edit.
         */
        do_action( 'xmlrpc_call_success_blogger_editPost', $post_ID, $args );

        return true;
    }

    /**
     * Remove a post.
     *
     * @since 1.5.0
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type int    $post_ID
     *     @type string $username
     *     @type string $password
     * }
     * @return true|IXR_Error True when post is deleted.
     */
    public function blogger_deletePost( $args ) {
        $this->escape( $args );

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

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

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

        $actual_post = get_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 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.' ) );
        }

        /**
         * Fires after a post has been successfully deleted via the XML-RPC Blogger API.
         *
         * @since 3.4.0
         *
         * @param int   $post_ID ID of the deleted post.
         * @param array $args    An array of arguments to delete the post.
         */
        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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $content_struct
     *     @type int    $publish
     * }
     * @return int|IXR_Error
     */
    public function mw_newPost($args) {
        $this->escape($args);

        $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;

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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( get_post_type_object( $post_type )->cap->create_posts ) )
            return new IXR_Error( 401, __( 'Sorry, you are not allowed to publish posts on this site.' ) );
        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, __( 'Sorry, you are not allowed to create posts as this user.' ) );
                    break;
                case "page":
                    if ( !current_user_can( 'edit_others_pages' ) )
                        return new IXR_Error( 401, __( 'Sorry, you are not allowed to create pages as this user.' ) );
                    break;
                default:
                    return new IXR_Error( 401, __( 'Invalid post type.' ) );
            }
            $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_default_comment_status( $post_type );
                        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_default_comment_status( $post_type );
                        break;
                }
            }
        } else {
            $comment_status = get_default_comment_status( $post_type );
        }

        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_default_comment_status( $post_type, 'pingback' );
                        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_default_comment_status( $post_type, 'pingback' );
                        break;
                }
            }
        } else {
            $ping_status = get_default_comment_status( $post_type, 'pingback' );
        }

        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 = '';
            $post_date_gmt = '';
        }

        $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'] ) ) {
            $data = $postdata;
            $data['sticky'] = $content_struct['sticky'];
            $error = $this->_toggle_sticky( $data );
            if ( $error ) {
                return $error;
            }
        }

        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'] ) )
            set_post_format( $post_ID, $content_struct['wp_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.'));

        /**
         * Fires after a new post has been successfully created via the XML-RPC MovableType API.
         *
         * @since 3.4.0
         *
         * @param int   $post_ID ID of the new post.
         * @param array $args    An array of arguments to create the new post.
         */
        do_action( 'xmlrpc_call_success_mw_newPost', $post_ID, $args );

        return strval($post_ID);
    }

    /**
     * Adds an enclosure to a post if it's new.
     *
     * @since 2.8.0
     *
     * @param integer $post_ID   Post ID.
     * @param array   $enclosure Enclosure data.
     */
    public 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'] . "\n";
            $found = false;
            if ( $enclosures = get_post_meta( $post_ID, 'enclosure' ) ) {
                foreach ( $enclosures as $enc ) {
                    // This method used to omit the trailing new line. #23219
                    if ( rtrim( $enc, "\n" ) == rtrim( $encstring, "\n" ) ) {
                        $found = true;
                        break;
                    }
                }
            }
            if ( ! $found )
                add_post_meta( $post_ID, 'enclosure', $encstring );
        }
    }

    /**
     * Attach upload to a post.
     *
     * @since 2.1.0
     *
     * @global wpdb $wpdb WordPress database abstraction object.
     *
     * @param int $post_ID Post ID.
     * @param string $post_content Post Content for attachment.
     */
    public 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 ( ! empty( $file->guid ) && 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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $content_struct
     *     @type int    $publish
     * }
     * @return bool|IXR_Error True on success.
     */
    public 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;

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

        $postdata = get_post( $post_ID, ARRAY_A );

        /*
         * If there is no post data for the give post id, stop now and return an error.
         * Otherwise 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 are not allowed 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);

        $ID = $postdata['ID'];
        $post_content = $postdata['post_content'];
        $post_title = $postdata['post_title'];
        $post_excerpt = $postdata['post_excerpt'];
        $post_password = $postdata['post_password'];
        $post_parent = $postdata['post_parent'];
        $post_type = $postdata['post_type'];
        $menu_order = $postdata['menu_order'];

        // Let WordPress manage slug if none was provided.
        $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'];

        $page_template = null;
        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'] ) ) {
            // Check permissions if attempting to switch author to or from another user.
            if ( $user->ID != $content_struct['wp_author_id'] || $user->ID != $post_author ) {
                switch ( $post_type ) {
                    case 'post':
                        if ( ! current_user_can( 'edit_others_posts' ) ) {
                            return new IXR_Error( 401, __( 'Sorry, 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, __( 'Sorry, you are not allowed to change the page author as this user.' ) );
                        }
                        break;
                    default:
                        return new IXR_Error( 401, __( 'Invalid post type.' ) );
                }
                $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_default_comment_status( $post_type );
                        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_default_comment_status( $post_type );
                        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_default_comment_status( $post_type, 'pingback' );
                        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_default_comment_status( $post_type, 'pingback' );
                        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 || 'private' == $post_status ) {
            if ( 'page' == $post_type && ! current_user_can( 'publish_pages' ) ) {
                return new IXR_Error( 401, __( 'Sorry, you are not allowed to publish this page.' ) );
            } elseif ( ! current_user_can( 'publish_posts' ) ) {
                return new IXR_Error( 401, __( 'Sorry, you are not allowed 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();

        // Default to not flagging the post date to be edited unless it's intentional.
        $edit_date = false;

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

            // Flag the post date to be edited.
            $edit_date = true;
        } 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', 'edit_date', '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.'));

        // Only posts can be sticky
        if ( $post_type == 'post' && isset( $content_struct['sticky'] ) ) {
            $data = $newpost;
            $data['sticky'] = $content_struct['sticky'];
            $data['post_type'] = 'post';
            $error = $this->_toggle_sticky( $data, true );
            if ( $error ) {
                return $error;
            }
        }

        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'] ) )
            set_post_format( $post_ID, $content_struct['wp_post_format'] );

        /**
         * Fires after a post has been successfully updated via the XML-RPC MovableType API.
         *
         * @since 3.4.0
         *
         * @param int   $post_ID ID of the updated post.
         * @param array $args    An array of arguments to update the post.
         */
        do_action( 'xmlrpc_call_success_mw_editPost', $post_ID, $args );

        return true;
    }

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

        $postdata = get_post($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 are not allowed to edit this post.' ) );

        /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */
        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']);
            $link = get_permalink($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 arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type int    $numberposts
     * }
     * @return array|IXR_Error
     */
    public function mw_getRecentPosts( $args ) {
        $this->escape( $args );

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

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

        if ( ! current_user_can( 'edit_posts' ) )
            return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit posts.' ) );

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

        $posts_list = wp_get_recent_posts( $query );

        if ( !$posts_list )
            return array();

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

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

            $recent_posts[] = 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,
                'sticky' => ( $entry['post_type'] === 'post' && is_sticky( $entry['ID'] ) ),
                'wp_post_thumbnail' => get_post_thumbnail_id( $entry['ID'] )
            );
        }

        return $recent_posts;
    }

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

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

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

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

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

        $categories_struct = array();

        if ( $cats = get_categories(array('get' => 'all')) ) {
            foreach ( $cats as $cat ) {
                $struct = array();
                $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
     *
     * @global wpdb $wpdb WordPress database abstraction object.
     *
     * @param array  $args {
     *     Method arguments. Note: arguments must be ordered as documented.
     *
     *     @type int    $blog_id (unused)
     *     @type string $username
     *     @type string $password
     *     @type array  $data
     * }
     * @return array|IXR_Error
     */
    public function mw_newMediaObject( $args ) {
        global $wpdb;

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

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

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

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

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

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

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

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

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

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

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

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

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

        return $struct;
    }

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

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

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

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

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

        $posts_list = wp_get_recent_posts( $query );

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

        $recent_posts = array();

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

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

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

        return $recent_posts;
    }

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

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

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

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

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

        $categories_struct = array();

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

                $categories_struct[] = $struct;
            }
        }

        return $categories_struct;
    }

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

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

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

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

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

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

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

        return $categories;
    }

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

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

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

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

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

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

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

        wp_set_post_categories($post_ID, $catids);

        return true;
    }

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

        return array_keys( $this->methods );
    }

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

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

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

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

        $actual_post = get_post($post_ID, ARRAY_A);

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

        $comments = $wpdb->get_results( $wpdb->prepare("SELECT comment_author_url, comment_content, comment_author_IP, comment_type FROM $wpdb->comments WHERE comment_post_ID = %d", $post_ID) );

        if ( !$comments )
            return array();

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

        return $trackback_pings;
    }

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

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

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

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

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

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

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

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

        return wp_update_post( $postdata );
    }

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

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

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

        $this->escape( $args );

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

        /**
         * Filters the pingback source URI.
         *
         * @since 3.6.0
         *
         * @param string $pagelinkedfrom URI of the page linked from.
         * @param string $pagelinkedto   URI of the page linked to.
         */
        $pagelinkedfrom = apply_filters( 'pingback_ping_source_uri', $pagelinkedfrom, $pagelinkedto );

        if ( ! $pagelinkedfrom )
            return $this->pingback_error( 0, __( 'A valid URL was not provided.' ) );

        // Check if the page linked to is in our site
        $pos1 = strpos($pagelinkedto, str_replace(array('http://www.','http://','https://www.','https://'), '', get_option('home')));
        if ( !$pos1 )
            return $this->pingback_error( 0, __( 'Is there no link to us?' ) );

        // let's find which post is linked to
        // FIXME: does url_to_postid() cover all these cases already?
        //        if so, then let's use it and drop the old code.
        $urltest = parse_url($pagelinkedto);
        if ( $post_ID = url_to_postid($pagelinkedto) ) {
            // $way
        } elseif ( isset( $urltest['path'] ) && preg_match('#p/[0-9]{1,}#', $urltest['path'], $match) ) {
            // the path defines the post_ID (archives/p/XXXX)
            $blah = explode('/', $match[0]);
            $post_ID = (int) $blah[1];
        } elseif ( isset( $urltest['query'] ) && preg_match('#p=[0-9]{1,}#', $urltest['query'], $match) ) {
            // the querystring defines the post_ID (?p=XXXX)
            $blah = explode('=', $match[0]);
            $post_ID = (int) $blah[1];
        } elseif ( isset($urltest['fragment']) ) {
            // an #anchor is there, it's either...
            if ( intval($urltest['fragment']) ) {
                // ...an integer #XXXX (simplest case)
                $post_ID = (int) $urltest['fragment'];
            } elseif ( preg_match('/post-[0-9]+/',$urltest['fragment']) ) {
                // ...a post id in the form 'post-###'
                $post_ID = preg_replace('/[^0-9]+/', '', $urltest['fragment']);
            } elseif ( is_string($urltest['fragment']) ) {
                // ...or a string #title, a little more complicated
                $title = preg_replace('/[^a-z0-9]/i', '.', $urltest['fragment']);
                $sql = $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_title RLIKE %s", $title );
                if (! ($post_ID = $wpdb->get_var($sql)) ) {
                    // returning unknown error '0' is better than die()ing
                      return $this->pingback_error( 0, '' );
                }
            }
        } else {
            // TODO: Attempt to extract a post ID from the given URL
              return $this->pingback_error( 33, __('The specified target URL cannot be used as a target. It either doesn’t exist, or it is not a pingback-enabled resource.' ) );
        }
        $post_ID = (int) $post_ID;

        $post = get_post($post_ID);

        if ( !$post ) // Post_ID not found
              return $this->pingback_error( 33, __( 'The specified target URL cannot be used as a target. It either doesn’t exist, or it is not a pingback-enabled resource.' ) );

        if ( $post_ID == url_to_postid($pagelinkedfrom) )
            return $this->pingback_error( 0, __( 'The source URL and the target URL cannot both point to the same resource.' ) );

        // Check if pings are on
        if ( !pings_open($post) )
              return $this->pingback_error( 33, __( 'The specified target URL cannot be used as a target. It either doesn’t exist, or it is not a pingback-enabled resource.' ) );

        // Let's check that the remote site didn't already pingback this entry
        if ( $wpdb->get_results( $wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_author_url = %s", $post_ID, $pagelinkedfrom) ) )
            return $this->pingback_error( 48, __( 'The pingback has already been registered.' ) );

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        if ( empty($context) ) // Link to target not found
            return $this->pingback_error( 17, __( 'The source URL does not contain a link to the target URL, and so cannot be used as a source.' ) );

        $pagelinkedfrom = str_replace('&', '&', $pagelinkedfrom);

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

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

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

        $comment_ID = wp_new_comment($commentdata);

        if ( is_wp_error( $comment_ID ) ) {
            return $this->pingback_error( 0, $comment_ID->get_error_message() );
        }

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

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

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

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

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

        $post_ID = url_to_postid($url);
        if ( !$post_ID ) {
            // We aren't sure that the resource is available and/or pingback enabled
              return $this->pingback_error( 33, __( 'The specified target URL cannot be used as a target. It either doesn’t exist, or it is not a pingback-enabled resource.' ) );
        }

        $actual_post = get_post($post_ID, ARRAY_A);

        if ( !$actual_post ) {
            // No such post = resource not found
              return $this->pingback_error( 32, __('The specified target URL does not exist.' ) );
        }

        $comments = $wpdb->get_results( $wpdb->prepare("SELECT comment_author_url, comment_content, comment_author_IP, comment_type FROM $wpdb->comments WHERE comment_post_ID = %d", $post_ID) );

        if ( !$comments )
            return array();

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

        return $pingbacks;
    }

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