<?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,
#[\SensitiveParameter]
$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,
#[\SensitiveParameter]
$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 || (int) $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;
}

$current_network_id = get_current_network_id();

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

$blog_id = $blog->userblog_id;

switch_to_blog( $blog_id );

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

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

restore_current_blog();
}

return $struct;
}

/**
* Checks if the method received at least the minimum number of arguments.
*
* @since 3.4.0
*
* @param 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.
$date_created = rtrim( $post_data['post_date_gmt']->getIso(), 'Z' ) . 'Z';
} elseif ( ! empty( $post_data['post_date'] ) ) {
$date_created = $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( $date_created ) ) {
$post_data['post_date'] = iso8601_to_datetime( $date_created );
$post_data['post_date_gmt'] = iso8601_to_datetime( $date_created, '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.' ) );
}

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(
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 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 Post ID.
* @type array $4 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];

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

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

$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 ( '0000-00-00 00:00:00' === $post['post_date_gmt'] || isset( $content_struct['post_date'] ) ) {
unset( $post['post_date_gmt'] );
} else {
$post['post_date_gmt'] = $this->_convert_date( $post['post_date_gmt'] );
}

/*
* If the API client did not provide 'post_date', then we must not perpetuate the value that
* was stored in the database, or it will appear to be an intentional edit. Conveying it here
* as if it was coming from the API client will cause an otherwise zeroed out 'post_date_gmt'
* to get set with the value that was originally stored in the database when the draft was created.
*/
if ( ! isset( $content_struct['post_date'] ) ) {
unset( $post['post_date'] );
}

$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;
}

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

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

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

$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, __( 'Sorry, the post could not be deleted.' ) );
}

return true;
}

/**
* Retrieves 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 Post ID.
* @type array $4 Optional. 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 default post query fields used by the given XML-RPC method.
*
* @since 3.4.0
*
* @param array $fields An array of post fields to retrieve. By default,
* 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' );
}

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

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

$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 );
}

/**
* Retrieves 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Optional. Modifies the query used to retrieve posts. Accepts 'post_type',
* 'post_status', 'number', 'offset', 'orderby', 's', and 'order'.
* Default empty array.
* @type array $4 Optional. The subset of post type fields to return in the response array.
* }
* @return array|IXR_Error Array containing 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' );
}

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

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

$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;
}

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

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

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

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, the term could not be created.' ) );
}

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

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

/**
* Edits a term.
*
* @since 3.4.0
*
* @see wp_update_term()
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 Term ID.
* @type array $4 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];

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

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

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

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

$taxonomy = (array) $taxonomy;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

return true;
}

/**
* Deletes a term.
*
* @since 3.4.0
*
* @see wp_delete_term()
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type string $3 Taxonomy name.
* @type int $4 Term ID.
* }
* @return true|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];

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

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

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;
}

/**
* Retrieves a term.
*
* @since 3.4.0
*
* @see get_term()
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type string $3 Taxonomy name.
* @type int $4 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];

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

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

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 );
}

/**
* Retrieves 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type string $3 Taxonomy name.
* @type array $4 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();

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

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

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( 'taxonomy' => $taxonomy->name );

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( $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;
}

/**
* Retrieves a taxonomy.
*
* @since 3.4.0
*
* @see get_taxonomy()
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type string $3 Taxonomy name.
* @type array $4 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 default taxonomy query fields used by the given XML-RPC method.
*
* @since 3.4.0
*
* @param array $fields An array of taxonomy fields to retrieve. By default,
* contains 'labels', 'cap', and 'object_type'.
* @param string $method The method name.
*/
$fields = apply_filters( 'xmlrpc_default_taxonomy_fields', array( 'labels', 'cap', 'object_type' ), 'wp.getTaxonomy' );
}

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

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

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 );
}

/**
* Retrieves all taxonomies.
*
* @since 3.4.0
*
* @see get_taxonomies()
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Optional. An array of arguments for retrieving taxonomies.
* @type array $4 Optional. The subset of taxonomy fields to return.
* }
* @return array|IXR_Error An associative array of taxonomy data with returned fields determined
* by `$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' );
}

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

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

$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;
}

/**
* Retrieves 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 User ID.
* @type array $4 Optional. Array of fields to return.
* }
* @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 An array of user fields to retrieve. By default, contains 'all'.
* @param string $method The method name.
*/
$fields = apply_filters( 'xmlrpc_default_user_fields', array( 'all' ), 'wp.getUser' );
}

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

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

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 );
}

/**
* Retrieves 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Optional. Arguments for the user query.
* @type array $4 Optional. Fields to return.
* }
* @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' );
}

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

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

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;
}

/**
* Retrieves information about the requesting user.
*
* @uses get_userdata()
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username
* @type string $2 Password
* @type array $3 Optional. Fields to return.
* }
* @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' );
}

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

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

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 );
}

/**
* Edits user's profile.
*
* @uses wp_update_user()
*
* @param array $args {
* Method arguments. Note: 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. 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];

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

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

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 they were 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 could not be updated.' ) );
}

return true;
}

/**
* Retrieves a page.
*
* @since 2.2.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type int $1 Page ID.
* @type string $2 Username.
* @type string $3 Password.
* }
* @return array|IXR_Error
*/
public function wp_getPage( $args ) {
$this->escape( $args );

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

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

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

/**
* Retrieves Pages.
*
* @since 2.2.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 Optional. Number of pages. Default 10.
* }
* @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;

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

$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();
}

/**
* Creates a 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Content struct.
* }
* @return int|IXR_Error
*/
public function wp_newPage( $args ) {
// Items not escaped here will be escaped in wp_newPost().
$username = $this->escape( $args[1] );
$password = $this->escape( $args[2] );

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

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

// 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 );
}

/**
* Deletes a page.
*
* @since 2.2.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 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];

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

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

/*
* 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 || ( 'page' !== $actual_page['post_type'] ) ) {
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 ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.NotLowercase

return true;
}

/**
* Edits a page.
*
* @since 2.2.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type int $1 Page ID.
* @type string $2 Username.
* @type string $3 Password.
* @type string $4 Content.
* @type int $5 Publish flag. 0 for draft, 1 for 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 );

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

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

// Get the page data and make sure it is a page.
$actual_page = get_post( $page_id, ARRAY_A );
if ( ! $actual_page || ( 'page' !== $actual_page['post_type'] ) ) {
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 );
}

/**
* Retrieves 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* }
* @return array|IXR_Error
*/
public function wp_getPageList( $args ) {
global $wpdb;

$this->escape( $args );

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

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

// Get list of page 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;
}

/**
* Retrieves authors list.
*
* @since 2.2.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* }
* @return array|IXR_Error
*/
public function wp_getAuthors( $args ) {
$this->escape( $args );

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

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

$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;
}

/**
* Gets the list of all tags.
*
* @since 2.7.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* }
* @return array|IXR_Error
*/
public function wp_getTags( $args ) {
$this->escape( $args );

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

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

$tags = array();

$all_tags = get_tags();
if ( $all_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;
}

/**
* Creates a new category.
*
* @since 2.2.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Category.
* }
* @return int|IXR_Error Category ID.
*/
public function wp_newCategory( $args ) {
$this->escape( $args );

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

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

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

// 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 category could not be created.' ) );
}
} elseif ( ! $cat_id ) {
return new IXR_Error( 500, __( 'Sorry, the category could not be created.' ) );
}

/**
* 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 ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.NotLowercase

return $cat_id;
}

/**
* Deletes a category.
*
* @since 2.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 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];

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

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

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

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

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

return $status;
}

/**
* Retrieves category list.
*
* @since 2.2.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Category
* @type int $4 Max number of 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];

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

$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;
}

/**
* Retrieves a comment.
*
* @since 2.7.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 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];

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

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

$comment = get_comment( $comment_id );
if ( ! $comment ) {
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 );
}

/**
* Retrieves comments.
*
* Besides the common blog_id (unused), username, and password arguments,
* it takes a filter array as the 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Optional. Query arguments.
* }
* @return array|IXR_Error Array containing 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();

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

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

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;
}

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

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

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

if ( ! current_user_can( 'edit_comment', $comment_id ) ) {
return new IXR_Error( 403, __( 'Sorry, you are not allowed to delete this comment.' ) );
}

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

$status = wp_delete_comment( $comment_id );

if ( true === $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 ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.NotLowercase
}

return $status;
}

/**
* Edits a comment.
*
* Besides the common blog_id (unused), username, and password arguments,
* it takes a comment_id integer and a content_struct array as the 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 Comment ID.
* @type array $4 Content structure.
* }
* @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];

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );
$comment = array(
'comment_ID' => $comment_id,
);

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

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

$comment['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.
$date_created = rtrim( $content_struct['date_created_gmt']->getIso(), 'Z' ) . 'Z';

$comment['comment_date'] = get_date_from_gmt( $date_created );
$comment['comment_date_gmt'] = iso8601_to_datetime( $date_created, 'gmt' );
}

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

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

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

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

$result = wp_update_comment( $comment, true );
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 updated.' ) );
}

/**
* 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 ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.NotLowercase

return true;
}

/**
* Creates a new comment.
*
* @since 2.7.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type string|int $3 Post ID or URL.
* @type array $4 Content structure.
* }
* @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, __( 'Sorry, you must be logged in 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 (
'publish' === get_post_status( $post_id ) &&
! current_user_can( 'edit_post', $post_id ) &&
post_password_required( $post_id )
) {
return new IXR_Error( 403, __( 'Sorry, you are not allowed to comment on this post.' ) );
}

if (
'private' === get_post_status( $post_id ) &&
! current_user_can( 'read_post', $post_id )
) {
return new IXR_Error( 403, __( 'Sorry, you are not allowed to comment on this post.' ) );
}

$comment = array(
'comment_post_ID' => $post_id,
'comment_content' => trim( $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 ( strlen( $comment['comment_author_email'] ) < 6 || '' === $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 filter is documented in wp-includes/comment.php */
$allow_empty = apply_filters( 'allow_empty_comment', false, $comment );

if ( ! $allow_empty && '' === $comment['comment_content'] ) {
return new IXR_Error( 403, __( 'Comment is required.' ) );
}

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

$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 error occurred while processing your comment. Please ensure all fields are filled correctly and try again.' ) );
}

/**
* 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 ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.NotLowercase

return $comment_id;
}

/**
* Retrieves all of the comment status.
*
* @since 2.7.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* }
* @return array|IXR_Error
*/
public function wp_getCommentStatusList( $args ) {
$this->escape( $args );

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

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

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

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

return get_comment_statuses();
}

/**
* Retrieves comment counts.
*
* @since 2.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 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];

$user = $this->login( $username, $password );
if ( ! $user ) {
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 to access details of this post.' ) );
}

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

$count = wp_count_comments( $post_id );

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

/**
* Retrieves post statuses.
*
* @since 2.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* }
* @return array|IXR_Error
*/
public function wp_getPostStatusList( $args ) {
$this->escape( $args );

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

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

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

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

return get_post_statuses();
}

/**
* Retrieves page statuses.
*
* @since 2.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* }
* @return array|IXR_Error
*/
public function wp_getPageStatusList( $args ) {
$this->escape( $args );

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

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

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

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

return get_page_statuses();
}

/**
* Retrieves page templates.
*
* @since 2.6.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* }
* @return array|IXR_Error
*/
public function wp_getPageTemplates( $args ) {
$this->escape( $args );

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

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

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

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

return $templates;
}

/**
* Retrieves blog options.
*
* @since 2.6.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Optional. 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();

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

/**
* Retrieves 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;
}

/**
* Updates blog options.
*
* @since 2.6.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Options.
* }
* @return array|IXR_Error
*/
public function wp_setOptions( $args ) {
$this->escape( $args );

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

$user = $this->login( $username, $password );
if ( ! $user ) {
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'] ) {
continue;
}

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

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

/**
* Retrieves a media item by ID.
*
* @since 3.1.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 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];

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

$attachment = get_post( $attachment_id );
if ( ! $attachment || 'attachment' !== $attachment->post_type ) {
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 the 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Optional. Query arguments.
* }
* @return array|IXR_Error Array containing 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();

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

$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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 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];

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

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

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

$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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type string $3 Post type name.
* @type array $4 Optional. Fields to fetch.
* }
* @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 post type query fields used by the given XML-RPC method.
*
* @since 3.4.0
*
* @param array $fields An array of post type fields to retrieve. By default,
* contains 'labels', 'cap', and 'taxonomies'.
* @param string $method The method name.
*/
$fields = apply_filters( 'xmlrpc_default_posttype_fields', array( 'labels', 'cap', 'taxonomies' ), 'wp.getPostType' );
}

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

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

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 post types.
*
* @since 3.4.0
*
* @see get_post_types()
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Optional. Query arguments.
* @type array $4 Optional. Fields to fetch.
* }
* @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' );
}

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

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

$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;
}

/**
* Retrieves 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 Post ID.
* @type array $4 Optional. Fields to fetch.
* }
* @return array|IXR_Error Array containing 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 fields to retrieve. By default,
* contains 'post_date' and 'post_date_gmt'.
* @param string $method The method name.
*/
$fields = apply_filters( 'xmlrpc_default_revision_fields', array( 'post_date', 'post_date_gmt' ), 'wp.getRevisions' );
}

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

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

$post = get_post( $post_id );
if ( ! $post ) {
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;
}

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

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

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

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

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

$post = get_post( $revision->post_parent );
if ( ! $post ) {
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/
*/

/**
* Retrieves 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 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];

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

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

$is_admin = current_user_can( 'manage_options' );

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

return array( $struct );
}

/**
* Private function for retrieving a users blogs for multisite setups.
*
* @since 3.0.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* }
* @return array|IXR_Error
*/
protected function _multisite_getUsersBlogs( $args ) {
$current_blog = get_site();

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

$blogs = $this->wp_getUsersBlogs( $args );
if ( $blogs instanceof IXR_Error ) {
return $blogs;
}

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

/**
* Retrieves 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* }
* @return array|IXR_Error
*/
public function blogger_getUserInfo( $args ) {
$this->escape( $args );

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

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

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

return $struct;
}

/**
* Retrieves a post.
*
* @since 1.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type int $1 Post ID.
* @type string $2 Username.
* @type string $3 Password.
* }
* @return array|IXR_Error
*/
public function blogger_getPost( $args ) {
$this->escape( $args );

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

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

$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;
}

/**
* Retrieves the list of recent posts.
*
* @since 1.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type string $0 App key (unused).
* @type int $1 Blog ID (unused).
* @type string $2 Username.
* @type string $3 Password.
* @type int $4 Optional. Number of posts.
* }
* @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();
}

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

$posts_list = wp_get_recent_posts( $query );

if ( ! $posts_list ) {
$this->error = new IXR_Error( 500, __( 'No posts found or an error occurred while retrieving posts.' ) );
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, this method is not supported.' ) );
}

/**
* 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, this method is not supported.' ) );
}

/**
* Creates a new post.
*
* @since 1.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type string $0 App key (unused).
* @type int $1 Blog ID (unused).
* @type string $2 Username.
* @type string $3 Password.
* @type string $4 Content.
* @type int $5 Publish flag. 0 for draft, 1 for 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];

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

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

$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, the post could not be created.' ) );
}

$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 ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.NotLowercase

return $post_id;
}

/**
* Edits a post.
*
* @since 1.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type int $1 Post ID.
* @type string $2 Username.
* @type string $3 Password.
* @type string $4 Content
* @type int $5 Publish flag. 0 for draft, 1 for 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];

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

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

$actual_post = get_post( $post_id, ARRAY_A );

if ( ! $actual_post || 'post' !== $actual_post['post_type'] ) {
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, __( 'Sorry, the post could not be updated.' ) );
}
$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 ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.NotLowercase

return true;
}

/**
* Deletes a post.
*
* @since 1.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type int $1 Post ID.
* @type string $2 Username.
* @type string $3 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];

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

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

$actual_post = get_post( $post_id, ARRAY_A );

if ( ! $actual_post || 'post' !== $actual_post['post_type'] ) {
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, __( 'Sorry, the post could not 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 ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.NotLowercase

return true;
}

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

/**
* Creates 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Content structure.
* @type int $4 Optional. Publish flag. 0 for draft, 1 for publish. Default 0.
* }
* @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;

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

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

$page_template = '';
if ( ! empty( $content_struct['post_type'] ) ) {
if ( 'page' === $content_struct['post_type'] ) {
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 ( 'post' === $content_struct['post_type'] ) {
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 = null;
if ( isset( $content_struct['wp_slug'] ) ) {
$post_name = $content_struct['wp_slug'];
}

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

// Only set a post parent if one was given.
$post_parent = 0;
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.
$menu_order = 0;
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 !== (int) $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'] : '';
$post_content = isset( $content_struct['description'] ) ? $content_struct['description'] : '';

$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:
// Deliberably left empty.
break;
}
}

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

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

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 .= '<!--more-->' . $post_more;
}

$to_ping = '';
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.
$date_created = rtrim( $content_struct['date_created_gmt']->getIso(), 'Z' ) . 'Z';
} elseif ( ! empty( $content_struct['dateCreated'] ) ) {
$date_created = $content_struct['dateCreated']->getIso();
}

$post_date = '';
$post_date_gmt = '';
if ( ! empty( $date_created ) ) {
$post_date = iso8601_to_datetime( $date_created );
$post_date_gmt = iso8601_to_datetime( $date_created, '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 = get_default_post_to_edit( $post_type, true )->ID;
$postdata['ID'] = $post_id;

// Only posts can be sticky.
if ( 'post' === $post_type && 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.
$enclosure = isset( $content_struct['enclosure'] ) ? $content_struct['enclosure'] : null;
$this->add_enclosure_if_new( $post_id, $enclosure );

$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, the post could not be created.' ) );
}

/**
* 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 ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.NotLowercase

return (string) $post_id;
}

/**
* Adds an enclosure to a post if it's new.
*
* @since 2.8.0
*
* @param int $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;
$enclosures = get_post_meta( $post_id, 'enclosure' );
if ( $enclosures ) {
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 );
}
}
}

/**
* Attaches an 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 ) && str_contains( $post_content, $file->guid ) ) {
$wpdb->update( $wpdb->posts, array( 'post_parent' => $post_id ), array( 'ID' => $file->ID ) );
}
}
}
}

/**
* Edits a post.
*
* @since 1.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Post ID.
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Content structure.
* @type int $4 Optional. Publish flag. 0 for draft, 1 for publish. Default 0.
* }
* @return true|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;

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

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

$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' ), true ) ) {
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 );

$post_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'];
$ping_status = $postdata['ping_status'];
$comment_status = $postdata['comment_status'];

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

$post_author = $postdata['post_author'];

// If an author ID was provided then use it instead.
if ( isset( $content_struct['wp_author_id'] ) ) {
// Check permissions if attempting to switch author to or from another user.
if ( $user->ID !== (int) $content_struct['wp_author_id'] || $user->ID !== (int) $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'] : '';

$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'] : array();

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 = '';
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.
$date_created = rtrim( $content_struct['date_created_gmt']->getIso(), 'Z' ) . 'Z';
} elseif ( ! empty( $content_struct['dateCreated'] ) ) {
$date_created = $content_struct['dateCreated']->getIso();
}

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

if ( ! empty( $date_created ) ) {
$post_date = iso8601_to_datetime( $date_created );
$post_date_gmt = iso8601_to_datetime( $date_created, 'gmt' );

// Flag the post date to be edited.
$edit_date = true;
} else {
$post_date = $postdata['post_date'];
$post_date_gmt = $postdata['post_date_gmt'];
}

$newpost = array(
'ID' => $post_id,
);

$newpost += compact(
'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'
);

// We've got all the data -- post it.
$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, the post could not be updated.' ) );
}

// Only posts can be sticky.
if ( 'post' === $post_type && 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.
$enclosure = isset( $content_struct['enclosure'] ) ? $content_struct['enclosure'] : null;
$this->add_enclosure_if_new( $post_id, $enclosure );

$this->attach_uploads( $post_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 ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.NotLowercase

return true;
}

/**
* Retrieves a post.
*
* @since 1.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Post ID.
* @type string $1 Username.
* @type string $2 Password.
* }
* @return array|IXR_Error
*/
public function mw_getPost( $args ) {
$this->escape( $args );

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

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

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();
$cat_ids = wp_get_post_categories( $post_id );
foreach ( $cat_ids as $cat_id ) {
$categories[] = get_cat_name( $cat_id );
}

$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 ( 'future' === $postdata['post_status'] ) {
$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 ( 'enclosure' === $key ) {
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.' ) );
}
}

/**
* Retrieves list of recent posts.
*
* @since 1.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 Optional. Number of posts.
* }
* @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();
}

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

$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();
$cat_ids = wp_get_post_categories( $entry['ID'] );
foreach ( $cat_ids as $cat_id ) {
$categories[] = get_cat_name( $cat_id );
}

$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 ( 'future' === $entry['post_status'] ) {
$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' => ( 'post' === $entry['post_type'] && is_sticky( $entry['ID'] ) ),
'wp_post_thumbnail' => get_post_thumbnail_id( $entry['ID'] ),
);
}

return $recent_posts;
}

/**
* Retrieves 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 $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* }
* @return array|IXR_Error
*/
public function mw_getCategories( $args ) {
$this->escape( $args );

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

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

$categories_struct = array();

$cats = get_categories( array( 'get' => 'all' ) );
if ( $cats ) {
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
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 Data.
* }
* @return array|IXR_Error
*/
public function mw_newMediaObject( $args ) {
$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'];

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

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

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,
sprintf(
/* translators: %s: Allowed space allocation. */
__( 'Sorry, you have used your space allocation of %s. Please delete some files to upload more files.' ),
size_format( get_space_allowed() * MB_IN_BYTES )
)
);
return $this->error;
}

/**
* Filters whether to preempt the XML-RPC media upload.
*
* Returning 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.
*/
$upload_err = apply_filters( 'pre_upload_error', false );
if ( $upload_err ) {
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. */
$error_string = sprintf( __( 'Could not write file %1$s (%2$s).' ), $name, $upload['error'] );
return new IXR_Error( 500, $error_string );
}

// 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.
$attachment_id = wp_insert_attachment( $attachment, $upload['file'], $post_id );
wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $upload['file'] ) );

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

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

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

return $struct;
}

/*
* MovableType API functions.
* Specs archive on http://web.archive.org/web/20050220091302/http://www.movabletype.org:80/docs/mtmanual_programmatic.html
*/

/**
* Retrieves the post titles of recent posts.
*
* @since 1.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* @type int $3 Optional. Number of posts.
* }
* @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();
}

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

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

$posts_list = wp_get_recent_posts( $query );

if ( ! $posts_list ) {
$this->error = new IXR_Error( 500, __( 'No posts found or an error occurred while retrieving posts.' ) );
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;
}

/**
* Retrieves the list of all categories on a blog.
*
* @since 1.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Blog ID (unused).
* @type string $1 Username.
* @type string $2 Password.
* }
* @return array|IXR_Error
*/
public function mt_getCategoryList( $args ) {
$this->escape( $args );

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

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

$categories_struct = array();

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

$categories_struct[] = $struct;
}
}

return $categories_struct;
}

/**
* Retrieves post categories.
*
* @since 1.5.0
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type int $0 Post ID.
* @type string $1 Username.
* @type string $2 Password.
* }
* @return array|IXR_Error
*/
public function mt_getPostCategories( $args ) {
$this->escape( $args );

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

$user = $this->login( $username, $password );
if ( ! $user ) {
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', $args, $this );

$categories = array();
$cat_ids = wp_get_post_categories( (int) $post_id );
// First listed category will be the primary category.
$is_primary = true;
foreach ( $cat_ids as $cat_id ) {
$categories[] = array(
'categoryName' => get_cat_name( $cat_id ),
'categoryId' => (string) $cat_id,
'isPrimary' => $is_primary,
);
$is_primary = 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 $0 Post ID.
* @type string $1 Username.
* @type string $2 Password.
* @type array $3 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];

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

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

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.' ) );
}

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

wp_set_post_categories( $post_id, $cat_ids );

return true;
}

/**
* Retrieves 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', array(), $this );

return array_keys( $this->methods );
}

/**
* Retrieves 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', array(), $this );

/**
* 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() );
}

/**
* Retrieves 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', $post_id, $this );

$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 $0 Post ID.
* @type string $1 Username.
* @type string $2 Password.
* }
* @return int|IXR_Error
*/
public function mt_publishPost( $args ) {
$this->escape( $args );

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

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

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

$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 categories.
$postdata['post_category'] = wp_get_post_categories( $post_id );
$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
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param array $args {
* Method arguments. Note: arguments must be ordered as documented.
*
* @type string $0 URL of page linked from.
* @type string $1 URL of page linked to.
* }
* @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', $args, $this );

$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 on 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 );
$post_id = url_to_postid( $pagelinkedto );

if ( $post_id ) {
// $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 query string 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 ( (int) $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 );
$post_id = $wpdb->get_var( $sql );
if ( ! $post_id ) {
// 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 does not exist, or it is not a pingback-enabled resource.' ) );
}

$post_id = (int) $post_id;
$post = get_post( $post_id );

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

if ( url_to_postid( $pagelinkedfrom ) === $post_id ) {
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 does not 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.' ) );
}

/*
* The remote site may have sent the pingback before it finished publishing its own content
* containing this pingback URL. If that happens then it won't be immediately possible to fetch
* the pinging post; adding a small delay reduces the likelihood of this happening.
*
* While there are more robust methods than calling `sleep()` here (because `sleep()` merely
* mitigates the risk of requesting the remote post before it's available), this is effective
* enough for most cases and avoids introducing more complexity into this code.
*
* One way to improve the reliability of this code might be to add failure-handling to the remote
* fetch and retry up to a set number of times if it receives a 404. This could also handle 401 and
* 403 responses to differentiate the "does not exist" failure from the "may not access" failure.
*/
sleep( 1 );

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

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

// 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 = wp_remote_retrieve_body( $request );
$remote_source_original = $remote_source;

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, __( 'A title on that page cannot be found.' ) );
}

// Remove all script and style tags including their content.
$remote_source = preg_replace( '@<(script|style)[^>]*?>.*?</\\1>@si', '', $remote_source );
// Just keep the tag we need.
$remote_source = strip_tags( $remote_source, '<a>' );

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

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

foreach ( $p as $para ) {
if ( str_contains( $para, $pagelinkedto ) ) { // 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 = array(
'comment_post_ID' => $comment_post_id,
);

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

$comment_id = wp_new_comment( $commentdata );

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

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

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

/**
* Retrieves an 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 );

$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 does not 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 ) );
}
}