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<?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().
 *
 * @package WordPress
 * @subpackage Publishing
 * @since 1.5.0
 */
class wp_xmlrpc_server extends IXR_Server {
	/**
	 * Methods.
	 *
	 * @access public
	 * @var array
	 */
	public $methods;

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

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

	/**
	 * Flags that the user authentication has failed in this instance of wp_xmlrpc_server.
	 *
	 * @access protected
	 * @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
	 * @access public
	 *
	 * @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
	 * @access public
	 */
	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', $meta['id'] );
				if ( isset($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'] );
			}
		}
	}

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

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

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

		if ( in_array( '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.
	 *
	 * @access protected
	 *
	 * @param array|object $term The unprepared term data.
	 * @return array The prepared term data.
	 */
	protected function _prepare_term( $term ) {
		$_term = $term;
		if ( ! is_array( $_term ) )
			$_term = get_object_vars( $_term );

		// For 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'] );

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

		// Prepare common post fields.
		$post_fields = array(
			'post_title'        => $post['post_title'],
			'post_date'         => $this->_convert_date( $post['post_date'] ),
			'post_date_gmt'     => $this->_convert_date_gmt( $post['post_date_gmt'], $post['post_date'] ),
			'post_modified'     => $this->_convert_date( $post['post_modified'] ),
			'post_modified_gmt' => $this->_convert_date_gmt( $post['post_modified_gmt'], $post['post_modified'] ),
			'post_status'       => $post['post_status'],
			'post_type'         => $post['post_type'],
			'post_name'         => $post['post_name'],
			'post_author'       => $post['post_author'],
			'post_password'     => $post['post_password'],
			'post_excerpt'      => $post['post_excerpt'],
			'post_content'      => $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.
	 * @access protected
	 *
	 * @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.
	 *
	 * @access protected
	 *
	 * @param object $media_item     The unprepared media item data.
	 * @param string $thumbnail_size The image size to use for the thumbnail URL.
	 * @return array The prepared media item data.
	 */
	protected function _prepare_media_item( $media_item, $thumbnail_size = 'thumbnail' ) {
		$_media_item = array(
			'attachment_id'    => strval( $media_item->ID ),
			'date_created_gmt' => $this->_convert_date_gmt( $media_item->post_date_gmt, $media_item->post_date ),
			'parent'           => $media_item->post_parent,
			'link'             => wp_get_attachment_url( $media_item->ID ),
			'title'            => $media_item->post_title,
			'caption'          => $media_item->post_excerpt,
			'description'      => $media_item->post_content,
			'metadata'         => wp_get_attachment_metadata( $media_item->ID ),
			'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.
	 *
	 * @access protected
	 *
	 * @param object $page The unprepared page data.
	 * @return array The prepared page data.
	 */
	protected function _prepare_page( $page ) {
		// Get all of the page content and link.
		$full_page = get_extended( $page->post_content );
		$link = 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.
	 *
	 * @access protected
	 *
	 * @param object $comment The unprepared comment data.
	 * @return array The prepared comment data.
	 */
	protected function _prepare_comment( $comment ) {
		// Format page date.
		$comment_date_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.
	 *
	 * @access protected
	 *
	 * @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
	 * @access private
	 *
	 * @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
	 * @access protected
	 *
	 * @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' => 0,
			'post_password' => '', 'post_excerpt' => '', 'post_content' => '', 'post_title' => '' );

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

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

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

		if ( $update ) {
			if ( ! get_post( $post_data['ID'] ) )
				return new IXR_Error( 401, __( 'Invalid post ID.' ) );
			if ( ! current_user_can( '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'] );
		} else {
			// Do not allow direct submission of 'tax_input', clients must use 'terms' and/or 'terms_names'.
			unset( $post_data['tax_input'], $post_data['post_category'], $post_data['tags_input'] );
		}

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

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

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

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

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

		/**
		 * 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.' ) );

		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, __( "This taxonomy is not hierarchical so you can't set a parent." ) );

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

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

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

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

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

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

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

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

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

		return true;
	}

	/**
	 * Delete a term.
	 *
	 * @since 3.4.0
	 *
	 * @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('manage_categories') )
			return new IXR_Error( 401, __( 'Sorry, you are not allowed to delete a 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 moderate or edit 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 unknown error 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
	 * @access protected
	 *
	 * @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( '&amp;', '&', $args[0] );
		$pagelinkedto = str_replace( '&amp;', '&', $args[1] );
		$pagelinkedto = str_replace( '&', '&amp;', $pagelinkedto );

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

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

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

		// let's find which post is linked to
		// FIXME: does url_to_postid() cover all these cases already?
		//        if so, then let's use it and drop the old code.
		$urltest = parse_url($pagelinkedto);
		if ( $post_ID = url_to_postid($pagelinkedto) ) {
			// $way
		} elseif ( isset( $urltest['path'] ) && preg_match('#p/[0-9]{1,}#', $urltest['path'], $match) ) {
			// the path defines the post_ID (archives/p/XXXX)
			$blah = explode('/', $match[0]);
			$post_ID = (int) $blah[1];
		} elseif ( isset( $urltest['query'] ) && preg_match('#p=[0-9]{1,}#', $urltest['query'], $match) ) {
			// the querystring defines the post_ID (?p=XXXX)
			$blah = explode('=', $match[0]);
			$post_ID = (int) $blah[1];
		} elseif ( isset($urltest['fragment']) ) {
			// an #anchor is there, it's either...
			if ( intval($urltest['fragment']) ) {
				// ...an integer #XXXX (simplest case)
				$post_ID = (int) $urltest['fragment'];
			} elseif ( preg_match('/post-[0-9]+/',$urltest['fragment']) ) {
				// ...a post id in the form 'post-###'
				$post_ID = preg_replace('/[^0-9]+/', '', $urltest['fragment']);
			} elseif ( is_string($urltest['fragment']) ) {
				// ...or a string #title, a little more complicated
				$title = preg_replace('/[^a-z0-9]/i', '.', $urltest['fragment']);
				$sql = $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_title RLIKE %s", $title );
				if (! ($post_ID = $wpdb->get_var($sql)) ) {
					// returning unknown error '0' is better than die()ing
			  		return $this->pingback_error( 0, '' );
				}
			}
		} else {
			// TODO: Attempt to extract a post ID from the given URL
	  		return $this->pingback_error( 33, __('The specified target URL cannot be used as a target. It either doesn&#8217;t exist, or it is not a pingback-enabled resource.' ) );
		}
		$post_ID = (int) $post_ID;

		$post = get_post($post_ID);

		if ( !$post ) // Post_ID not found
	  		return $this->pingback_error( 33, __( 'The specified target URL cannot be used as a target. It either doesn&#8217;t exist, or it is not a pingback-enabled resource.' ) );

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

		// Check if pings are on
		if ( !pings_open($post) )
	  		return $this->pingback_error( 33, __( 'The specified target URL cannot be used as a target. It either doesn&#8217;t exist, or it is not a pingback-enabled resource.' ) );

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		$comment_ID = wp_new_comment($commentdata);

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

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

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

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

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

		$post_ID = url_to_postid($url);
		if ( !$post_ID ) {
			// We aren't sure that the resource is available and/or pingback enabled
	  		return $this->pingback_error( 33, __( 'The specified target URL cannot be used as a target. It either doesn&#8217;t exist, or it is not a pingback-enabled resource.' ) );
		}

		$actual_post = get_post($post_ID, ARRAY_A);

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

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

		if ( !$comments )
			return array();

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

		return $pingbacks;
	}

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

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