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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::set_is_enabled().
 *
 * @since 1.5.0
 *
 * @see IXR_Server
 */
#[AllowDynamicProperties]
class wp_xmlrpc_server extends IXR_Server {
	/**
	 * Methods.
	 *
	 * @var array
	 */
	public $methods;

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

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

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

/**
	 * Flags that XML-RPC is enabled
	 *
	 * @var bool
	 */
	private $is_enabled;

/**
	 * 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 string[] $methods An array of XML-RPC methods, keyed by their methodName.
		 */
		$this->methods = apply_filters( 'xmlrpc_methods', $this->methods );

$this->set_is_enabled();
	}

/**
	 * Sets wp_xmlrpc_server::$is_enabled property.
	 *
	 * Determines whether the xmlrpc server is enabled on this WordPress install
	 * and set the is_enabled property accordingly.
	 *
	 * @since 5.7.3
	 */
	private function set_is_enabled() {
		/*
		 * Respect old get_option() filters left for back-compat when the 'enable_xmlrpc'
		 * option was deprecated in 3.5.0. Use the {@see 'xmlrpc_enabled'} hook instead.
		 */
		$is_enabled = apply_filters( 'pre_option_enable_xmlrpc', false );
		if ( false === $is_enabled ) {
			$is_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 $is_enabled Whether XML-RPC is enabled. Default true.
		 */
		$this->is_enabled = apply_filters( 'xmlrpc_enabled', $is_enabled );
	}

/**
	 * Makes private/protected methods readable for backward compatibility.
	 *
	 * @since 4.0.0
	 *
	 * @param string $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 $this->_multisite_getUsersBlogs( ...$arguments );
		}
		return false;
	}

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

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

/**
	 * Tests 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 $0 A number to add.
	 *     @type int $1 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;
	}

/**
	 * Logs user in.
	 *
	 * @since 2.8.0
	 *
	 * @param string $username User's username.
	 * @param string $password User's password.
	 * @return WP_User|false WP_User object if authentication passed, false otherwise.
	 */
	public function login( $username, $password ) {
		if ( ! $this->is_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 IXR_Error $error The XML-RPC error message.
			 * @param WP_Error  $user  WP_Error object.
			 */
			$this->error = apply_filters( 'xmlrpc_login_error', $this->error, $user );
			return false;
		}

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

/**
	 * Checks 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 );
	}

/**
	 * Escapes 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 );
			}
		}
	}

/**
	 * Sends error response to client.
	 *
	 * Sends an XML error response to the client. If the endpoint is enabled
	 * an HTTP 200 response is always sent per the XML-RPC specification.
	 *
	 * @since 5.7.3
	 *
	 * @param IXR_Error|string $error   Error code or an error object.
	 * @param false            $message Error message. Optional.
	 */
	public function error( $error, $message = false ) {
		// Accepts either an error object or an error code and message
		if ( $message && ! is_object( $error ) ) {
			$error = new IXR_Error( $error, $message );
		}

if ( ! $this->is_enabled ) {
			status_header( $error->code );
		}

$this->output( $error->getXml() );
	}

/**
	 * Retrieves 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;
	}

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

foreach ( (array) $fields as $meta ) {
			if ( isset( $meta['id'] ) ) {
				$meta['id'] = (int) $meta['id'];
				$pmeta      = get_metadata_by_mid( 'post', $meta['id'] );

if ( ! $pmeta || $pmeta->post_id != $post_id ) {
					continue;
				}

if ( isset( $meta['key'] ) ) {
					$meta['key'] = wp_unslash( $meta['key'] );
					if ( $meta['key'] !== $pmeta->meta_key ) {
						continue;
					}
					$meta['value'] = wp_unslash( $meta['value'] );
					if ( current_user_can( 'edit_post_meta', $post_id, $meta['key'] ) ) {
						update_metadata_by_mid( 'post', $meta['id'], $meta['value'] );
					}
				} elseif ( current_user_can( 'delete_post_meta', $post_id, $pmeta->meta_key ) ) {
					delete_metadata_by_mid( 'post', $meta['id'] );
				}
			} elseif ( current_user_can( 'add_post_meta', $post_id, wp_unslash( $meta['key'] ) ) ) {
				add_post_meta( $post_id, $meta['key'], $meta['value'] );
			}
		}
	}

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

$custom_fields = array();

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

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

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

return $custom_fields;
	}

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

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

/**
	 * Sets 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 submit comments on new posts.' ),
				'readonly' => false,
				'option'   => 'default_comment_status',
			),
			'default_ping_status'     => array(
				'desc'     => __( 'Allow link notifications from other blogs (pingbacks and trackbacks) on new posts.' ),
				'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 );
	}

/**
	 * Retrieves the blogs of the user.
	 *
	 * @since 2.6.0
	 *
	 * @param array $args {
	 *     Method arguments. Note: arguments must be ordered as documented.
	 *
	 *     @type string $0 Username.
	 *     @type string $1 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];

$user = $this->login( $username, $password );
		if ( ! $user ) {
			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
		 * @since 5.7.0 Added the `$args` and `$server` parameters.
		 *
		 * @param string           $name   The method name.
		 * @param array|string     $args   The escaped arguments passed to the method.
		 * @param wp_xmlrpc_server $server The XML-RPC server instance.
		 */
		do_action( 'xmlrpc_call', 'wp.getUsersBlogs', $args, $this );

$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 ( get_current_network_id() != $blog->site_id ) {
				continue;
			}

$blog_id = $blog->userblog_id;

switch_to_blog( $blog_id );

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

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

restore_current_blog();
		}

return $struct;
	}

/**
	 * Checks if the method received at least the minimum number of arguments.
	 *
	 * @since 3.4.0
	 *
	 * @param array $args  An array of arguments to check.
	 * @param int   $count Minimum number of arguments.
	 * @return bool True if `$args` contains at least `$count` arguments, false otherwise.
	 */
	protected function minimum_args( $args, $count ) {
		if ( ! is_array( $args ) || count( $args ) < $count ) {
			$this->error = new IXR_Error( 400, __( 'Insufficient arguments passed to this XML-RPC method.' ) );
			return false;
		}

return true;
	}

/**
	 * Prepares taxonomy data for return in an XML-RPC object.
	 *
	 * @param WP_Taxonomy $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, true ) ) {
			$_taxonomy['labels'] = (array) $taxonomy->labels;
		}

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

if ( in_array( 'menu', $fields, true ) ) {
			$_taxonomy['show_in_menu'] = (bool) $taxonomy->show_in_menu;
		}

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

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

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

// For integers which may be larger than XML-RPC supports ensure we return strings.
		$_term['term_id']          = (string) $_term['term_id'];
		$_term['term_group']       = (string) $_term['term_group'];
		$_term['term_taxonomy_id'] = (string) $_term['term_taxonomy_id'];
		$_term['parent']           = (string) $_term['parent'];

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

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

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

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

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

/**
	 * Prepares post data for return in an XML-RPC object.
	 *
	 * @param array $post   The unprepared post data.
	 * @param array $fields The subset of post type fields to return.
	 * @return array The prepared post data.
	 */
	protected function _prepare_post( $post, $fields ) {
		// Holds the data for this post. built up based on $fields.
		$_post = array( 'post_id' => (string) $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'       => (string) $post['post_parent'],
			'post_mime_type'    => $post['post_mime_type'],
			'link'              => get_permalink( $post['ID'] ),
			'guid'              => $post['guid'],
			'menu_order'        => (int) $post['menu_order'],
			'comment_status'    => $post['comment_status'],
			'ping_status'       => $post['ping_status'],
			'sticky'            => ( 'post' === $post['post_type'] && 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 ( 'future' === $post_fields['post_status'] ) {
			$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, true ) ) {
			$_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, true );

if ( $all_taxonomy_fields || in_array( 'terms', $fields, true ) ) {
			$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, true ) ) {
			$_post['custom_fields'] = $this->get_custom_fields( $post['ID'] );
		}

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

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

/**
	 * Prepares post data for return in an XML-RPC object.
	 *
	 * @since 3.4.0
	 * @since 4.6.0 Converted the `$post_type` parameter to accept a WP_Post_Type object.
	 *
	 * @param WP_Post_Type $post_type Post type object.
	 * @param array        $fields    The subset of post fields to return.
	 * @return array The prepared post type data.
	 */
	protected function _prepare_post_type( $post_type, $fields ) {
		$_post_type = array(
			'name'         => $post_type->name,
			'label'        => $post_type->label,
			'hierarchical' => (bool) $post_type->hierarchical,
			'public'       => (bool) $post_type->public,
			'show_ui'      => (bool) $post_type->show_ui,
			'_builtin'     => (bool) $post_type->_builtin,
			'has_archive'  => (bool) $post_type->has_archive,
			'supports'     => get_all_post_type_supports( $post_type->name ),
		);

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

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

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

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

/**
	 * Prepares media item data for return in an XML-RPC object.
	 *
	 * @param WP_Post $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'    => (string) $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,
			'alt'              => get_post_meta( $media_item->ID, '_wp_attachment_image_alt', true ),
		);

$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 WP_Post $media_item     Media item object.
		 * @param string  $thumbnail_size Image size.
		 */
		return apply_filters( 'xmlrpc_prepare_media_item', $_media_item, $media_item, $thumbnail_size );
	}

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

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

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

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

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

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

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

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

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

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

if ( '0' == $comment->comment_approved ) {
			$comment_status = 'hold';
		} elseif ( 'spam' === $comment->comment_approved ) {
			$comment_status = 'spam';
		} elseif ( '1' == $comment->comment_approved ) {
			$comment_status = 'approve';
		} else {
			$comment_status = $comment->comment_approved;
		}
		$_comment = array(
			'date_created_gmt' => $comment_date_gmt,
			'user_id'          => $comment->user_id,
			'comment_id'       => $comment->comment_ID,
			'parent'           => $comment->comment_parent,
			'status'           => $comment_status,
			'content'          => $comment->comment_content,
			'link'             => get_comment_link( $comment ),
			'post_id'          => $comment->comment_post_ID,
			'post_title'       => get_the_title( $comment->comment_post_ID ),
			'author'           => $comment->comment_author,
			'author_url'       => $comment->comment_author_url,
			'author_email'     => $comment->comment_author_email,
			'author_ip'        => $comment->comment_author_IP,
			'type'             => $comment->comment_type,
		);

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

/**
	 * Prepares user data for return in an XML-RPC object.
	 *
	 * @param WP_User $user   The unprepared user object.
	 * @param array   $fields The subset of user fields to return.
	 * @return array The prepared user data.
	 */
	protected function _prepare_user( $user, $fields ) {
		$_user = array( 'user_id' => (string) $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, true ) ) {
			$_user = array_merge( $_user, $user_fields );
		} else {
			if ( in_array( 'basic', $fields, true ) ) {
				$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 );
	}

/**
	 * Creates 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    $0 Blog ID (unused).
	 *     @type string $1 Username.
	 *     @type string $2 Password.
	 *     @type array  $3 {
	 *         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];

$user = $this->login( $username, $password );
		if ( ! $user ) {
			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 ( '0000-00-00 00:00:00' === $content_struct['post_date_gmt'] || 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', $args, $this );

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.
	 * @return bool True if the number is greater than one, false otherwise.
	 */
	private function _is_greater_than_one( $count ) {
		return $count > 1;
	}

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

// Private and password-protected posts cannot be stickied.
		if ( 'private' === $post_data['post_status'] || ! empty( $post_data['post_password'] ) ) {
			// Error if the client tried to stick the post, otherwise, silently unstick.
			if ( ! empty( $post_data['sticky'] ) ) {
				return new IXR_Error( 401, __( 'Sorry, you cannot stick a private post.' ) );
			}

if ( $update ) {
				unstick_post( $post_data['ID'] );
			}
		} elseif ( isset( $post_data['sticky'] ) ) {
			if ( ! current_user_can( $post_type->cap->edit_others_posts ) ) {
				return new IXR_Error( 401, __( 'Sorry, you are not allowed to make posts sticky.' ) );
			}

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

/**
	 * Helper method for wp_newPost() and wp_editPost(), containing shared logic.
	 *
	 * @since 3.4.0
	 *
	 * @see wp_insert_post()
	 *
	 * @param WP_User         $user           The post author if post_author isn't set in $content_struct.
	 * @param array|IXR_Error $content_struct Post data to insert.
	 * @return IXR_Error|string
	 */
	protected function _insert_post( $user, $content_struct ) {
		$defaults = array(
			'post_status'    => 'draft',
			'post_type'      => 'post',
			'post_author'    => 0,
			'post_password'  => '',
			'post_excerpt'   => '',
			'post_content'   => '',
			'post_title'     => '',
			'post_date'      => '',
			'post_date_gmt'  => '',
			'post_format'    => null,
			'post_name'      => null,
			'post_thumbnail' => null,
			'post_parent'    => 0,
			'ping_status'    => '',
			'comment_status' => '',
			'custom_fields'  => null,
			'terms_names'    => null,
			'terms'          => null,
			'sticky'         => null,
			'enclosure'      => null,
			'ID'             => null,
		);

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

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

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

if ( $update ) {
			if ( ! get_post( $post_data['ID'] ) ) {
				return new IXR_Error( 401, __( 'Invalid post ID.' ) );
			}
			if ( ! current_user_can( 'edit_post', $post_data['ID'] ) ) {
				return new IXR_Error( 401, __( 'Sorry, you are not allowed to edit this post.' ) );
			}
			if ( get_post_type( $post_data['ID'] ) !== $post_data['post_type'] ) {
				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 ( 'open' !== $post_data['comment_status'] && 'closed' !== $post_data['comment_status'] ) {
			unset( $post_data['comment_status'] );
		}

if ( 'open' !== $post_data['ping_status'] && 'closed' !== $post_data['ping_status'] ) {
			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']     = 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' === $post_data['post_type'] ) {
			$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.' ) );
					}

/*
					 * 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(
							array(
								'taxonomy'   => $taxonomy,
								'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, true ) ) {
							return new IXR_Error( 401, __( 'Ambiguous term name used in a hierarchical taxonomy. Please use term ID instead.' ) );
						}

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

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

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

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

$post_data['tax_input'] = $terms;
			unset( $post_data['terms'], $post_data['terms_names'] );
		}

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

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

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

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

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

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

// Remove all null values to allow for using the insert/update post default values for those keys instead.
		$post_data = array_filter(
			$post_data,
			static function ( $value ) {
				return null !== $value;
			}
		);

$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 ) {
			if ( $update ) {
				return new IXR_Error( 401, __( 'Sorry, the post could not be updated.' ) );
			} else {
				return new IXR_Error( 401, __( 'Sorry, the post could not be created.' ) );
			}
		}

return (string) $post_id;
	}

/**
	 * Edits a post for any register