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Edit File : user.php \| Size : 120.69 KB
<?php /** * Core User API * * @package WordPress * @subpackage Users / /* * Authenticates and logs a user in with 'remember' capability. * * The credentials is an array that has 'user_login', 'user_password', and * 'remember' indices. If the credentials is not given, then the log in form * will be assumed and used if set. * * The various authentication cookies will be set by this function and will be * set for a longer period depending on if the 'remember' credential is set to * true. * * Note: wp_signon() doesn't handle setting the current user. This means that if the * function is called before the {@see 'init'} hook is fired, is_user_logged_in() will * evaluate as false until that point. If is_user_logged_in() is needed in conjunction * with wp_signon(), wp_set_current_user() should be called explicitly. * * @since 2.5.0 * * @global string $auth_secure_cookie * * @param array $credentials Optional. User info in order to sign on. * @param string\|bool $secure_cookie Optional. Whether to use secure cookie. * @return WP_User\|WP_Error WP_User on success, WP_Error on failure. / function wp_signon( $credentials = array(), $secure_cookie = '' ) { if ( empty( $credentials ) ) { $credentials = array(); // Back-compat for plugins passing an empty string. if ( ! empty( $_POST['log'] ) ) { $credentials['user_login'] = $_POST['log']; } if ( ! empty( $_POST['pwd'] ) ) { $credentials['user_password'] = $_POST['pwd']; } if ( ! empty( $_POST['rememberme'] ) ) { $credentials['remember'] = $_POST['rememberme']; } } if ( ! empty( $credentials['remember'] ) ) { $credentials['remember'] = true; } else { $credentials['remember'] = false; } /* * Fires before the user is authenticated. * * The variables passed to the callbacks are passed by reference, * and can be modified by callback functions. * * @since 1.5.1 * * @todo Decide whether to deprecate the wp_authenticate action. * * @param string $user_login Username (passed by reference). * @param string $user_password User password (passed by reference). / do_action_ref_array( 'wp_authenticate', array( &$credentials['user_login'], &$credentials['user_password'] ) ); if ( '' === $secure_cookie ) { $secure_cookie = is_ssl(); } /* * Filters whether to use a secure sign-on cookie. * * @since 3.1.0 * * @param bool $secure_cookie Whether to use a secure sign-on cookie. * @param array $credentials { * Array of entered sign-on data. * * @type string $user_login Username. * @type string $user_password Password entered. * @type bool $remember Whether to 'remember' the user. Increases the time * that the cookie will be kept. Default false. * } / $secure_cookie = apply_filters( 'secure_signon_cookie', $secure_cookie, $credentials ); global $auth_secure_cookie; // XXX ugly hack to pass this to wp_authenticate_cookie $auth_secure_cookie = $secure_cookie; add_filter( 'authenticate', 'wp_authenticate_cookie', 30, 3 ); $user = wp_authenticate( $credentials['user_login'], $credentials['user_password'] ); if ( is_wp_error( $user ) ) { if ( $user->get_error_codes() == array( 'empty_username', 'empty_password' ) ) { $user = new WP_Error( '', '' ); } return $user; } wp_set_auth_cookie( $user->ID, $credentials['remember'], $secure_cookie ); /* * Fires after the user has successfully logged in. * * @since 1.5.0 * * @param string $user_login Username. * @param WP_User $user WP_User object of the logged-in user. / do_action( 'wp_login', $user->user_login, $user ); return $user; } /* * Authenticate a user, confirming the username and password are valid. * * @since 2.8.0 * * @param WP_User\|WP_Error\|null $user WP_User or WP_Error object from a previous callback. Default null. * @param string $username Username for authentication. * @param string $password Password for authentication. * @return WP_User\|WP_Error WP_User on success, WP_Error on failure. / function wp_authenticate_username_password( $user, $username, $password ) { if ( $user instanceof WP_User ) { return $user; } if ( empty( $username ) \|\| empty( $password ) ) { if ( is_wp_error( $user ) ) { return $user; } $error = new WP_Error(); if ( empty( $username ) ) { $error->add( 'empty_username', __( '<strong>ERROR</strong>: The username field is empty.' ) ); } if ( empty( $password ) ) { $error->add( 'empty_password', __( '<strong>ERROR</strong>: The password field is empty.' ) ); } return $error; } $user = get_user_by( 'login', $username ); if ( ! $user ) { return new WP_Error( 'invalid_username', __( '<strong>ERROR</strong>: Invalid username.' ) . ' <a href="' . wp_lostpassword_url() . '">' . __( 'Lost your password?' ) . '</a>' ); } /* * Filters whether the given user can be authenticated with the provided $password. * * @since 2.5.0 * * @param WP_User\|WP_Error $user WP_User or WP_Error object if a previous * callback failed authentication. * @param string $password Password to check against the user. / $user = apply_filters( 'wp_authenticate_user', $user, $password ); if ( is_wp_error( $user ) ) { return $user; } if ( ! wp_check_password( $password, $user->user_pass, $user->ID ) ) { return new WP_Error( 'incorrect_password', sprintf( / translators: %s: user name / __( '<strong>ERROR</strong>: The password you entered for the username %s is incorrect.' ), '<strong>' . $username . '</strong>' ) . ' <a href="' . wp_lostpassword_url() . '">' . __( 'Lost your password?' ) . '</a>' ); } return $user; } /* * Authenticates a user using the email and password. * * @since 4.5.0 * * @param WP_User\|WP_Error\|null $user WP_User or WP_Error object if a previous * callback failed authentication. * @param string $email Email address for authentication. * @param string $password Password for authentication. * @return WP_User\|WP_Error WP_User on success, WP_Error on failure. / function wp_authenticate_email_password( $user, $email, $password ) { if ( $user instanceof WP_User ) { return $user; } if ( empty( $email ) \|\| empty( $password ) ) { if ( is_wp_error( $user ) ) { return $user; } $error = new WP_Error(); if ( empty( $email ) ) { $error->add( 'empty_username', __( '<strong>ERROR</strong>: The email field is empty.' ) ); // Uses 'empty_username' for back-compat with wp_signon() } if ( empty( $password ) ) { $error->add( 'empty_password', __( '<strong>ERROR</strong>: The password field is empty.' ) ); } return $error; } if ( ! is_email( $email ) ) { return $user; } $user = get_user_by( 'email', $email ); if ( ! $user ) { return new WP_Error( 'invalid_email', __( '<strong>ERROR</strong>: Invalid email address.' ) . ' <a href="' . wp_lostpassword_url() . '">' . __( 'Lost your password?' ) . '</a>' ); } /* This filter is documented in site-inc/user.php / $user = apply_filters( 'wp_authenticate_user', $user, $password ); if ( is_wp_error( $user ) ) { return $user; } if ( ! wp_check_password( $password, $user->user_pass, $user->ID ) ) { return new WP_Error( 'incorrect_password', sprintf( / translators: %s: email address / __( '<strong>ERROR</strong>: The password you entered for the email address %s is incorrect.' ), '<strong>' . $email . '</strong>' ) . ' <a href="' . wp_lostpassword_url() . '">' . __( 'Lost your password?' ) . '</a>' ); } return $user; } /* * Authenticate the user using the WordPress auth cookie. * * @since 2.8.0 * * @global string $auth_secure_cookie * * @param WP_User\|WP_Error\|null $user WP_User or WP_Error object from a previous callback. Default null. * @param string $username Username. If not empty, cancels the cookie authentication. * @param string $password Password. If not empty, cancels the cookie authentication. * @return WP_User\|WP_Error WP_User on success, WP_Error on failure. / function wp_authenticate_cookie( $user, $username, $password ) { if ( $user instanceof WP_User ) { return $user; } if ( empty( $username ) && empty( $password ) ) { $user_id = wp_validate_auth_cookie(); if ( $user_id ) { return new WP_User( $user_id ); } global $auth_secure_cookie; if ( $auth_secure_cookie ) { $auth_cookie = SECURE_AUTH_COOKIE; } else { $auth_cookie = AUTH_COOKIE; } if ( ! empty( $_COOKIE[ $auth_cookie ] ) ) { return new WP_Error( 'expired_session', __( 'Please log in again.' ) ); } // If the cookie is not set, be silent. } return $user; } /* * For Multisite blogs, check if the authenticated user has been marked as a * spammer, or if the user's primary blog has been marked as spam. * * @since 3.7.0 * * @param WP_User\|WP_Error\|null $user WP_User or WP_Error object from a previous callback. Default null. * @return WP_User\|WP_Error WP_User on success, WP_Error if the user is considered a spammer. / function wp_authenticate_spam_check( $user ) { if ( $user instanceof WP_User && is_multisite() ) { /* * Filters whether the user has been marked as a spammer. * * @since 3.7.0 * * @param bool $spammed Whether the user is considered a spammer. * @param WP_User $user User to check against. / $spammed = apply_filters( 'check_is_user_spammed', is_user_spammy( $user ), $user ); if ( $spammed ) { return new WP_Error( 'spammer_account', __( '<strong>ERROR</strong>: Your account has been marked as a spammer.' ) ); } } return $user; } /* * Validates the logged-in cookie. * * Checks the logged-in cookie if the previous auth cookie could not be * validated and parsed. * * This is a callback for the {@see 'determine_current_user'} filter, rather than API. * * @since 3.9.0 * * @param int\|bool $user_id The user ID (or false) as received from the * determine_current_user filter. * @return int\|false User ID if validated, false otherwise. If a user ID from * an earlier filter callback is received, that value is returned. / function wp_validate_logged_in_cookie( $user_id ) { if ( $user_id ) { return $user_id; } if ( is_blog_admin() \|\| is_network_admin() \|\| empty( $_COOKIE[ LOGGED_IN_COOKIE ] ) ) { return false; } return wp_validate_auth_cookie( $_COOKIE[ LOGGED_IN_COOKIE ], 'logged_in' ); } /* * Number of posts user has written. * * @since 3.0.0 * @since 4.1.0 Added `$post_type` argument. * @since 4.3.0 Added `$public_only` argument. Added the ability to pass an array * of post types to `$post_type`. * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $userid User ID. * @param array\|string $post_type Optional. Single post type or array of post types to count the number of posts for. Default 'post'. * @param bool $public_only Optional. Whether to only return counts for public posts. Default false. * @return string Number of posts the user has written in this post type. / function count_user_posts( $userid, $post_type = 'post', $public_only = false ) { global $wpdb; $where = get_posts_by_author_sql( $post_type, true, $userid, $public_only ); $count = $wpdb->get_var( "SELECT COUNT() FROM $wpdb->posts $where" ); /** * Filters the number of posts a user has written. * * @since 2.7.0 * @since 4.1.0 Added `$post_type` argument. * @since 4.3.1 Added `$public_only` argument. * * @param int $count The user's post count. * @param int $userid User ID. * @param string\|array $post_type Single post type or array of post types to count the number of posts for. * @param bool $public_only Whether to limit counted posts to public posts. / return apply_filters( 'get_usernumposts', $count, $userid, $post_type, $public_only ); } /* * Number of posts written by a list of users. * * @since 3.0.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param array $users Array of user IDs. * @param string\|array $post_type Optional. Single post type or array of post types to check. Defaults to 'post'. * @param bool $public_only Optional. Only return counts for public posts. Defaults to false. * @return array Amount of posts each user has written. / function count_many_users_posts( $users, $post_type = 'post', $public_only = false ) { global $wpdb; $count = array(); if ( empty( $users ) \|\| ! is_array( $users ) ) { return $count; } $userlist = implode( ',', array_map( 'absint', $users ) ); $where = get_posts_by_author_sql( $post_type, true, null, $public_only ); $result = $wpdb->get_results( "SELECT post_author, COUNT() FROM $wpdb->posts $where AND post_author IN ($userlist) GROUP BY post_author", ARRAY_N ); foreach ( $result as $row ) { $count[ $row[0] ] = $row[1]; } foreach ( $users as $id ) { if ( ! isset( $count[ $id ] ) ) { $count[ $id ] = 0; } } return $count; } // // User option functions // /** * Get the current user's ID * * @since MU (3.0.0) * * @return int The current user's ID, or 0 if no user is logged in. / function get_current_user_id() { if ( ! function_exists( 'wp_get_current_user' ) ) { return 0; } $user = wp_get_current_user(); return ( isset( $user->ID ) ? (int) $user->ID : 0 ); } /* * Retrieve user option that can be either per Site or per Network. * * If the user ID is not given, then the current user will be used instead. If * the user ID is given, then the user data will be retrieved. The filter for * the result, will also pass the original option name and finally the user data * object as the third parameter. * * The option will first check for the per site name and then the per Network name. * * @since 2.0.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $option User option name. * @param int $user Optional. User ID. * @param string $deprecated Use get_option() to check for an option in the options table. * @return mixed User option value on success, false on failure. / function get_user_option( $option, $user = 0, $deprecated = '' ) { global $wpdb; if ( ! empty( $deprecated ) ) { _deprecated_argument( __FUNCTION__, '3.0.0' ); } if ( empty( $user ) ) { $user = get_current_user_id(); } if ( ! $user = get_userdata( $user ) ) { return false; } $prefix = $wpdb->get_blog_prefix(); if ( $user->has_prop( $prefix . $option ) ) { // Blog specific $result = $user->get( $prefix . $option ); } elseif ( $user->has_prop( $option ) ) { // User specific and cross-blog $result = $user->get( $option ); } else { $result = false; } /* * Filters a specific user option value. * * The dynamic portion of the hook name, `$option`, refers to the user option name. * * @since 2.5.0 * * @param mixed $result Value for the user's option. * @param string $option Name of the option being retrieved. * @param WP_User $user WP_User object of the user whose option is being retrieved. / return apply_filters( "get_user_option_{$option}", $result, $option, $user ); } /* * Update user option with global blog capability. * * User options are just like user metadata except that they have support for * global blog options. If the 'global' parameter is false, which it is by default * it will prepend the WordPress table prefix to the option name. * * Deletes the user option if $newvalue is empty. * * @since 2.0.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $user_id User ID. * @param string $option_name User option name. * @param mixed $newvalue User option value. * @param bool $global Optional. Whether option name is global or blog specific. * Default false (blog specific). * @return int\|bool User meta ID if the option didn't exist, true on successful update, * false on failure. / function update_user_option( $user_id, $option_name, $newvalue, $global = false ) { global $wpdb; if ( ! $global ) { $option_name = $wpdb->get_blog_prefix() . $option_name; } return update_user_meta( $user_id, $option_name, $newvalue ); } /* * Delete user option with global blog capability. * * User options are just like user metadata except that they have support for * global blog options. If the 'global' parameter is false, which it is by default * it will prepend the WordPress table prefix to the option name. * * @since 3.0.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $user_id User ID * @param string $option_name User option name. * @param bool $global Optional. Whether option name is global or blog specific. * Default false (blog specific). * @return bool True on success, false on failure. / function delete_user_option( $user_id, $option_name, $global = false ) { global $wpdb; if ( ! $global ) { $option_name = $wpdb->get_blog_prefix() . $option_name; } return delete_user_meta( $user_id, $option_name ); } /* * Retrieve list of users matching criteria. * * @since 3.1.0 * * @see WP_User_Query * * @param array $args Optional. Arguments to retrieve users. See WP_User_Query::prepare_query(). * for more information on accepted arguments. * @return array List of users. / function get_users( $args = array() ) { $args = wp_parse_args( $args ); $args['count_total'] = false; $user_search = new WP_User_Query( $args ); return (array) $user_search->get_results(); } /* * Get the sites a user belongs to. * * @since 3.0.0 * @since 4.7.0 Converted to use `get_sites()`. * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $user_id User ID * @param bool $all Whether to retrieve all sites, or only sites that are not * marked as deleted, archived, or spam. * @return array A list of the user's sites. An empty array if the user doesn't exist * or belongs to no sites. / function get_blogs_of_user( $user_id, $all = false ) { global $wpdb; $user_id = (int) $user_id; // Logged out users can't have sites if ( empty( $user_id ) ) { return array(); } /* * Filters the list of a user's sites before it is populated. * * Passing a non-null value to the filter will effectively short circuit * get_blogs_of_user(), returning that value instead. * * @since 4.6.0 * * @param null\|array $sites An array of site objects of which the user is a member. * @param int $user_id User ID. * @param bool $all Whether the returned array should contain all sites, including * those marked 'deleted', 'archived', or 'spam'. Default false. / $sites = apply_filters( 'pre_get_blogs_of_user', null, $user_id, $all ); if ( null !== $sites ) { return $sites; } $keys = get_user_meta( $user_id ); if ( empty( $keys ) ) { return array(); } if ( ! is_multisite() ) { $site_id = get_current_blog_id(); $sites = array( $site_id => new stdClass ); $sites[ $site_id ]->userblog_id = $site_id; $sites[ $site_id ]->blogname = get_option( 'blogname' ); $sites[ $site_id ]->domain = ''; $sites[ $site_id ]->path = ''; $sites[ $site_id ]->site_id = 1; $sites[ $site_id ]->siteurl = get_option( 'siteurl' ); $sites[ $site_id ]->archived = 0; $sites[ $site_id ]->spam = 0; $sites[ $site_id ]->deleted = 0; return $sites; } $site_ids = array(); if ( isset( $keys[ $wpdb->base_prefix . 'capabilities' ] ) && defined( 'MULTISITE' ) ) { $site_ids[] = 1; unset( $keys[ $wpdb->base_prefix . 'capabilities' ] ); } $keys = array_keys( $keys ); foreach ( $keys as $key ) { if ( 'capabilities' !== substr( $key, -12 ) ) { continue; } if ( $wpdb->base_prefix && 0 !== strpos( $key, $wpdb->base_prefix ) ) { continue; } $site_id = str_replace( array( $wpdb->base_prefix, '_capabilities' ), '', $key ); if ( ! is_numeric( $site_id ) ) { continue; } $site_ids[] = (int) $site_id; } $sites = array(); if ( ! empty( $site_ids ) ) { $args = array( 'number' => '', 'site__in' => $site_ids, 'update_site_meta_cache' => false, ); if ( ! $all ) { $args['archived'] = 0; $args['spam'] = 0; $args['deleted'] = 0; } $_sites = get_sites( $args ); foreach ( $_sites as $site ) { $sites[ $site->id ] = (object) array( 'userblog_id' => $site->id, 'blogname' => $site->blogname, 'domain' => $site->domain, 'path' => $site->path, 'site_id' => $site->network_id, 'siteurl' => $site->siteurl, 'archived' => $site->archived, 'mature' => $site->mature, 'spam' => $site->spam, 'deleted' => $site->deleted, ); } } /* * Filters the list of sites a user belongs to. * * @since MU (3.0.0) * * @param array $sites An array of site objects belonging to the user. * @param int $user_id User ID. * @param bool $all Whether the returned sites array should contain all sites, including * those marked 'deleted', 'archived', or 'spam'. Default false. / return apply_filters( 'get_blogs_of_user', $sites, $user_id, $all ); } /* * Find out whether a user is a member of a given blog. * * @since MU (3.0.0) * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $user_id Optional. The unique ID of the user. Defaults to the current user. * @param int $blog_id Optional. ID of the blog to check. Defaults to the current site. * @return bool / function is_user_member_of_blog( $user_id = 0, $blog_id = 0 ) { global $wpdb; $user_id = (int) $user_id; $blog_id = (int) $blog_id; if ( empty( $user_id ) ) { $user_id = get_current_user_id(); } // Technically not needed, but does save calls to get_site and get_user_meta // in the event that the function is called when a user isn't logged in if ( empty( $user_id ) ) { return false; } else { $user = get_userdata( $user_id ); if ( ! $user instanceof WP_User ) { return false; } } if ( ! is_multisite() ) { return true; } if ( empty( $blog_id ) ) { $blog_id = get_current_blog_id(); } $blog = get_site( $blog_id ); if ( ! $blog \|\| ! isset( $blog->domain ) \|\| $blog->archived \|\| $blog->spam \|\| $blog->deleted ) { return false; } $keys = get_user_meta( $user_id ); if ( empty( $keys ) ) { return false; } // no underscore before capabilities in $base_capabilities_key $base_capabilities_key = $wpdb->base_prefix . 'capabilities'; $site_capabilities_key = $wpdb->base_prefix . $blog_id . '_capabilities'; if ( isset( $keys[ $base_capabilities_key ] ) && $blog_id == 1 ) { return true; } if ( isset( $keys[ $site_capabilities_key ] ) ) { return true; } return false; } /* * Adds meta data to a user. * * @since 3.0.0 * * @param int $user_id User ID. * @param string $meta_key Metadata name. * @param mixed $meta_value Metadata value. * @param bool $unique Optional. Whether the same key should not be added. Default false. * @return int\|false Meta ID on success, false on failure. / function add_user_meta( $user_id, $meta_key, $meta_value, $unique = false ) { return add_metadata( 'user', $user_id, $meta_key, $meta_value, $unique ); } /* * Remove metadata matching criteria from a user. * * You can match based on the key, or key and value. Removing based on key and * value, will keep from removing duplicate metadata with the same key. It also * allows removing all metadata matching key, if needed. * * @since 3.0.0 * @link https://sitepad.com/docs/Function_Reference/delete_user_meta * * @param int $user_id User ID * @param string $meta_key Metadata name. * @param mixed $meta_value Optional. Metadata value. * @return bool True on success, false on failure. / function delete_user_meta( $user_id, $meta_key, $meta_value = '' ) { return delete_metadata( 'user', $user_id, $meta_key, $meta_value ); } /* * Retrieve user meta field for a user. * * @since 3.0.0 * @link https://sitepad.com/docs/Function_Reference/get_user_meta * * @param int $user_id User ID. * @param string $key Optional. The meta key to retrieve. By default, returns data for all keys. * @param bool $single Whether to return a single value. * @return mixed Will be an array if $single is false. Will be value of meta data field if $single is true. / function get_user_meta( $user_id, $key = '', $single = false ) { return get_metadata( 'user', $user_id, $key, $single ); } /* * Update user meta field based on user ID. * * Use the $prev_value parameter to differentiate between meta fields with the * same key and user ID. * * If the meta field for the user does not exist, it will be added. * * @since 3.0.0 * @link https://sitepad.com/docs/Function_Reference/update_user_meta * * @param int $user_id User ID. * @param string $meta_key Metadata key. * @param mixed $meta_value Metadata value. * @param mixed $prev_value Optional. Previous value to check before removing. * @return int\|bool Meta ID if the key didn't exist, true on successful update, false on failure. / function update_user_meta( $user_id, $meta_key, $meta_value, $prev_value = '' ) { return update_metadata( 'user', $user_id, $meta_key, $meta_value, $prev_value ); } /* * Count number of users who have each of the user roles. * * Assumes there are neither duplicated nor orphaned capabilities meta_values. * Assumes role names are unique phrases. Same assumption made by WP_User_Query::prepare_query() * Using $strategy = 'time' this is CPU-intensive and should handle around 10^7 users. * Using $strategy = 'memory' this is memory-intensive and should handle around 10^5 users, but see WP Bug #12257. * * @since 3.0.0 * @since 4.4.0 The number of users with no role is now included in the `none` element. * @since 4.9.0 The `$site_id` parameter was added to support multisite. * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $strategy Optional. The computational strategy to use when counting the users. * Accepts either 'time' or 'memory'. Default 'time'. * @param int\|null $site_id Optional. The site ID to count users for. Defaults to the current site. * @return array Includes a grand total and an array of counts indexed by role strings. / function count_users( $strategy = 'time', $site_id = null ) { global $wpdb; // Initialize if ( ! $site_id ) { $site_id = get_current_blog_id(); } /* * Filter the user count before queries are run. Return a non-null value to cause count_users() * to return early. * * @since 5.1.0 * * @param null\|string $result Default null. * @param string $strategy Optional. The computational strategy to use when counting the users. * Accepts either 'time' or 'memory'. Default 'time'. * @param int\|null $site_id Optional. The site ID to count users for. Defaults to the current site. / $pre = apply_filters( 'pre_count_users', null, $strategy, $site_id ); if ( null !== $pre ) { return $pre; } $blog_prefix = $wpdb->get_blog_prefix( $site_id ); $result = array(); if ( 'time' == $strategy ) { if ( is_multisite() && $site_id != get_current_blog_id() ) { switch_to_blog( $site_id ); $avail_roles = wp_roles()->get_names(); restore_current_blog(); } else { $avail_roles = wp_roles()->get_names(); } // Build a CPU-intensive query that will return concise information. $select_count = array(); foreach ( $avail_roles as $this_role => $name ) { $select_count[] = $wpdb->prepare( 'COUNT(NULLIF(`meta_value` LIKE %s, false))', '%' . $wpdb->esc_like( '"' . $this_role . '"' ) . '%' ); } $select_count[] = "COUNT(NULLIF(`meta_value` = 'a:0:{}', false))"; $select_count = implode( ', ', $select_count ); // Add the meta_value index to the selection list, then run the query. $row = $wpdb->get_row( " SELECT {$select_count}, COUNT() FROM {$wpdb->usermeta} INNER JOIN {$wpdb->users} ON user_id = ID WHERE meta_key = '{$blog_prefix}capabilities' ", ARRAY_N ); // Run the previous loop again to associate results with role names. $col = 0; $role_counts = array(); foreach ( $avail_roles as $this_role => $name ) { $count = (int) $row[ $col++ ]; if ( $count > 0 ) { $role_counts[ $this_role ] = $count; } } $role_counts['none'] = (int) $row[ $col++ ]; // Get the meta_value index from the end of the result set. $total_users = (int) $row[ $col ]; $result['total_users'] = $total_users; $result['avail_roles'] =& $role_counts; } else { $avail_roles = array( 'none' => 0, ); $users_of_blog = $wpdb->get_col( " SELECT meta_value FROM {$wpdb->usermeta} INNER JOIN {$wpdb->users} ON user_id = ID WHERE meta_key = '{$blog_prefix}capabilities' " ); foreach ( $users_of_blog as $caps_meta ) { $b_roles = maybe_unserialize( $caps_meta ); if ( ! is_array( $b_roles ) ) { continue; } if ( empty( $b_roles ) ) { $avail_roles['none']++; } foreach ( $b_roles as $b_role => $val ) { if ( isset( $avail_roles[ $b_role ] ) ) { $avail_roles[ $b_role ]++; } else { $avail_roles[ $b_role ] = 1; } } } $result['total_users'] = count( $users_of_blog ); $result['avail_roles'] =& $avail_roles; } return $result; } // // Private helper functions // /** * Set up global user vars. * * Used by wp_set_current_user() for back compat. Might be deprecated in the future. * * @since 2.0.4 * * @global string $user_login The user username for logging in * @global WP_User $userdata User data. * @global int $user_level The level of the user * @global int $user_ID The ID of the user * @global string $user_email The email address of the user * @global string $user_url The url in the user's profile * @global string $user_identity The display name of the user * * @param int $for_user_id Optional. User ID to set up global data. Default 0. / function setup_userdata( $for_user_id = 0 ) { global $user_login, $userdata, $user_level, $user_ID, $user_email, $user_url, $user_identity; if ( ! $for_user_id ) { $for_user_id = get_current_user_id(); } $user = get_userdata( $for_user_id ); if ( ! $user ) { $user_ID = 0; $user_level = 0; $userdata = null; $user_login = $user_email = $user_url = $user_identity = ''; return; } $user_ID = (int) $user->ID; $user_level = (int) $user->user_level; $userdata = $user; $user_login = $user->user_login; $user_email = $user->user_email; $user_url = $user->user_url; $user_identity = $user->display_name; } /* * Create dropdown HTML content of users. * * The content can either be displayed, which it is by default or retrieved by * setting the 'echo' argument. The 'include' and 'exclude' arguments do not * need to be used; all users will be displayed in that case. Only one can be * used, either 'include' or 'exclude', but not both. * * The available arguments are as follows: * * @since 2.3.0 * @since 4.5.0 Added the 'display_name_with_login' value for 'show'. * @since 4.7.0 Added the `$role`, `$role__in`, and `$role__not_in` parameters. * * @param array\|string $args { * Optional. Array or string of arguments to generate a drop-down of users. * See WP_User_Query::prepare_query() for additional available arguments. * * @type string $show_option_all Text to show as the drop-down default (all). * Default empty. * @type string $show_option_none Text to show as the drop-down default when no * users were found. Default empty. * @type int\|string $option_none_value Value to use for $show_option_non when no users * were found. Default -1. * @type string $hide_if_only_one_author Whether to skip generating the drop-down * if only one user was found. Default empty. * @type string $orderby Field to order found users by. Accepts user fields. * Default 'display_name'. * @type string $order Whether to order users in ascending or descending * order. Accepts 'ASC' (ascending) or 'DESC' (descending). * Default 'ASC'. * @type array\|string $include Array or comma-separated list of user IDs to include. * Default empty. * @type array\|string $exclude Array or comma-separated list of user IDs to exclude. * Default empty. * @type bool\|int $multi Whether to skip the ID attribute on the 'select' element. * Accepts 1\|true or 0\|false. Default 0\|false. * @type string $show User data to display. If the selected item is empty * then the 'user_login' will be displayed in parentheses. * Accepts any user field, or 'display_name_with_login' to show * the display name with user_login in parentheses. * Default 'display_name'. * @type int\|bool $echo Whether to echo or return the drop-down. Accepts 1\|true (echo) * or 0\|false (return). Default 1\|true. * @type int $selected Which user ID should be selected. Default 0. * @type bool $include_selected Whether to always include the selected user ID in the drop- * down. Default false. * @type string $name Name attribute of select element. Default 'user'. * @type string $id ID attribute of the select element. Default is the value of $name. * @type string $class Class attribute of the select element. Default empty. * @type int $blog_id ID of blog (Multisite only). Default is ID of the current blog. * @type string $who Which type of users to query. Accepts only an empty string or * 'authors'. Default empty. * @type string\|array $role An array or a comma-separated list of role names that users must * match to be included in results. Note that this is an inclusive * list: users must match each role. Default empty. * @type array $role__in An array of role names. Matched users must have at least one of * these roles. Default empty array. * @type array $role__not_in An array of role names to exclude. Users matching one or more of * these roles will not be included in results. Default empty array. * } * @return string String of HTML content. / function wp_dropdown_users( $args = '' ) { $defaults = array( 'show_option_all' => '', 'show_option_none' => '', 'hide_if_only_one_author' => '', 'orderby' => 'display_name', 'order' => 'ASC', 'include' => '', 'exclude' => '', 'multi' => 0, 'show' => 'display_name', 'echo' => 1, 'selected' => 0, 'name' => 'user', 'class' => '', 'id' => '', 'blog_id' => get_current_blog_id(), 'who' => '', 'include_selected' => false, 'option_none_value' => -1, 'role' => '', 'role__in' => array(), 'role__not_in' => array(), ); $defaults['selected'] = is_author() ? get_query_var( 'author' ) : 0; $r = wp_parse_args( $args, $defaults ); $query_args = wp_array_slice_assoc( $r, array( 'blog_id', 'include', 'exclude', 'orderby', 'order', 'who', 'role', 'role__in', 'role__not_in' ) ); $fields = array( 'ID', 'user_login' ); $show = ! empty( $r['show'] ) ? $r['show'] : 'display_name'; if ( 'display_name_with_login' === $show ) { $fields[] = 'display_name'; } else { $fields[] = $show; } $query_args['fields'] = $fields; $show_option_all = $r['show_option_all']; $show_option_none = $r['show_option_none']; $option_none_value = $r['option_none_value']; /* * Filters the query arguments for the list of users in the dropdown. * * @since 4.4.0 * * @param array $query_args The query arguments for get_users(). * @param array $r The arguments passed to wp_dropdown_users() combined with the defaults. / $query_args = apply_filters( 'wp_dropdown_users_args', $query_args, $r ); $users = get_users( $query_args ); $output = ''; if ( ! empty( $users ) && ( empty( $r['hide_if_only_one_author'] ) \|\| count( $users ) > 1 ) ) { $name = esc_attr( $r['name'] ); if ( $r['multi'] && ! $r['id'] ) { $id = ''; } else { $id = $r['id'] ? " id='" . esc_attr( $r['id'] ) . "'" : " id='$name'"; } $output = "<select name='{$name}'{$id} class='" . $r['class'] . "'>\n"; if ( $show_option_all ) { $output .= "\t<option value='0'>$show_option_all</option>\n"; } if ( $show_option_none ) { $_selected = selected( $option_none_value, $r['selected'], false ); $output .= "\t<option value='" . esc_attr( $option_none_value ) . "'$_selected>$show_option_none</option>\n"; } if ( $r['include_selected'] && ( $r['selected'] > 0 ) ) { $found_selected = false; $r['selected'] = (int) $r['selected']; foreach ( (array) $users as $user ) { $user->ID = (int) $user->ID; if ( $user->ID === $r['selected'] ) { $found_selected = true; } } if ( ! $found_selected ) { $users[] = get_userdata( $r['selected'] ); } } foreach ( (array) $users as $user ) { if ( 'display_name_with_login' === $show ) { / translators: 1: display name, 2: user_login / $display = sprintf( _x( '%1$s (%2$s)', 'user dropdown' ), $user->display_name, $user->user_login ); } elseif ( ! empty( $user->$show ) ) { $display = $user->$show; } else { $display = '(' . $user->user_login . ')'; } $_selected = selected( $user->ID, $r['selected'], false ); $output .= "\t<option value='$user->ID'$_selected>" . esc_html( $display ) . "</option>\n"; } $output .= '</select>'; } /* * Filters the wp_dropdown_users() HTML output. * * @since 2.3.0 * * @param string $output HTML output generated by wp_dropdown_users(). / $html = apply_filters( 'wp_dropdown_users', $output ); if ( $r['echo'] ) { echo $html; } return $html; } /* * Sanitize user field based on context. * * Possible context values are: 'raw', 'edit', 'db', 'display', 'attribute' and 'js'. The * 'display' context is used by default. 'attribute' and 'js' contexts are treated like 'display' * when calling filters. * * @since 2.3.0 * * @param string $field The user Object field name. * @param mixed $value The user Object value. * @param int $user_id User ID. * @param string $context How to sanitize user fields. Looks for 'raw', 'edit', 'db', 'display', * 'attribute' and 'js'. * @return mixed Sanitized value. / function sanitize_user_field( $field, $value, $user_id, $context ) { $int_fields = array( 'ID' ); if ( in_array( $field, $int_fields ) ) { $value = (int) $value; } if ( 'raw' == $context ) { return $value; } if ( ! is_string( $value ) && ! is_numeric( $value ) ) { return $value; } $prefixed = false !== strpos( $field, 'user_' ); if ( 'edit' == $context ) { if ( $prefixed ) { /* This filter is documented in site-inc/post.php / $value = apply_filters( "edit_{$field}", $value, $user_id ); } else { /* * Filters a user field value in the 'edit' context. * * The dynamic portion of the hook name, `$field`, refers to the prefixed user * field being filtered, such as 'user_login', 'user_email', 'first_name', etc. * * @since 2.9.0 * * @param mixed $value Value of the prefixed user field. * @param int $user_id User ID. / $value = apply_filters( "edit_user_{$field}", $value, $user_id ); } if ( 'description' == $field ) { $value = esc_html( $value ); // textarea_escaped? } else { $value = esc_attr( $value ); } } elseif ( 'db' == $context ) { if ( $prefixed ) { /* This filter is documented in site-inc/post.php / $value = apply_filters( "pre_{$field}", $value ); } else { /* * Filters the value of a user field in the 'db' context. * * The dynamic portion of the hook name, `$field`, refers to the prefixed user * field being filtered, such as 'user_login', 'user_email', 'first_name', etc. * * @since 2.9.0 * * @param mixed $value Value of the prefixed user field. / $value = apply_filters( "pre_user_{$field}", $value ); } } else { // Use display filters by default. if ( $prefixed ) { /* This filter is documented in site-inc/post.php / $value = apply_filters( "{$field}", $value, $user_id, $context ); } else { /* * Filters the value of a user field in a standard context. * * The dynamic portion of the hook name, `$field`, refers to the prefixed user * field being filtered, such as 'user_login', 'user_email', 'first_name', etc. * * @since 2.9.0 * * @param mixed $value The user object value to sanitize. * @param int $user_id User ID. * @param string $context The context to filter within. / $value = apply_filters( "user_{$field}", $value, $user_id, $context ); } } if ( 'user_url' == $field ) { $value = esc_url( $value ); } if ( 'attribute' == $context ) { $value = esc_attr( $value ); } elseif ( 'js' == $context ) { $value = esc_js( $value ); } return $value; } /* * Update all user caches * * @since 3.0.0 * * @param WP_User $user User object to be cached * @return bool\|null Returns false on failure. / function update_user_caches( $user ) { if ( $user instanceof WP_User ) { if ( ! $user->exists() ) { return false; } $user = $user->data; } wp_cache_add( $user->ID, $user, 'users' ); wp_cache_add( $user->user_login, $user->ID, 'userlogins' ); wp_cache_add( $user->user_email, $user->ID, 'useremail' ); wp_cache_add( $user->user_nicename, $user->ID, 'userslugs' ); } /* * Clean all user caches * * @since 3.0.0 * @since 4.4.0 'clean_user_cache' action was added. * * @param WP_User\|int $user User object or ID to be cleaned from the cache / function clean_user_cache( $user ) { if ( is_numeric( $user ) ) { $user = new WP_User( $user ); } if ( ! $user->exists() ) { return; } wp_cache_delete( $user->ID, 'users' ); wp_cache_delete( $user->user_login, 'userlogins' ); wp_cache_delete( $user->user_email, 'useremail' ); wp_cache_delete( $user->user_nicename, 'userslugs' ); /* * Fires immediately after the given user's cache is cleaned. * * @since 4.4.0 * * @param int $user_id User ID. * @param WP_User $user User object. / do_action( 'clean_user_cache', $user->ID, $user ); } /* * Determines whether the given username exists. * * For more information on this and similar theme functions, check out * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ * Conditional Tags} article in the Theme Developer Handbook. * * @since 2.0.0 * * @param string $username Username. * @return int\|false The user's ID on success, and false on failure. / function username_exists( $username ) { $user = get_user_by( 'login', $username ); if ( $user ) { $user_id = $user->ID; } else { $user_id = false; } /* * Filters whether the given username exists or not. * * @since 4.9.0 * * @param int\|false $user_id The user's ID on success, and false on failure. * @param string $username Username to check. / return apply_filters( 'username_exists', $user_id, $username ); } /* * Determines whether the given email exists. * * For more information on this and similar theme functions, check out * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ * Conditional Tags} article in the Theme Developer Handbook. * * @since 2.1.0 * * @param string $email Email. * @return int\|false The user's ID on success, and false on failure. / function email_exists( $email ) { $user = get_user_by( 'email', $email ); if ( $user ) { return $user->ID; } return false; } /* * Checks whether a username is valid. * * @since 2.0.1 * @since 4.4.0 Empty sanitized usernames are now considered invalid * * @param string $username Username. * @return bool Whether username given is valid / function validate_username( $username ) { $sanitized = sanitize_user( $username, true ); $valid = ( $sanitized == $username && ! empty( $sanitized ) ); /* * Filters whether the provided username is valid or not. * * @since 2.0.1 * * @param bool $valid Whether given username is valid. * @param string $username Username to check. / return apply_filters( 'validate_username', $valid, $username ); } /* * Insert a user into the database. * * Most of the `$userdata` array fields have filters associated with the values. Exceptions are * 'ID', 'rich_editing', 'syntax_highlighting', 'comment_shortcuts', 'admin_color', 'use_ssl', * 'user_registered', and 'role'. The filters have the prefix 'pre_user_' followed by the field * name. An example using 'description' would have the filter called, 'pre_user_description' that * can be hooked into. * * @since 2.0.0 * @since 3.6.0 The `aim`, `jabber`, and `yim` fields were removed as default user contact * methods for new installations. See wp_get_user_contact_methods(). * @since 4.7.0 The user's locale can be passed to `$userdata`. * * @global wpdb $wpdb WordPress database abstraction object. * * @param array\|object\|WP_User $userdata { * An array, object, or WP_User object of user data arguments. * * @type int $ID User ID. If supplied, the user will be updated. * @type string $user_pass The plain-text user password. * @type string $user_login The user's login username. * @type string $user_nicename The URL-friendly user name. * @type string $user_url The user URL. * @type string $user_email The user email address. * @type string $display_name The user's display name. * Default is the user's username. * @type string $nickname The user's nickname. * Default is the user's username. * @type string $first_name The user's first name. For new users, will be used * to build the first part of the user's display name * if `$display_name` is not specified. * @type string $last_name The user's last name. For new users, will be used * to build the second part of the user's display name * if `$display_name` is not specified. * @type string $description The user's biographical description. * @type string\|bool $rich_editing Whether to enable the rich-editor for the user. * False if not empty. * @type string\|bool $syntax_highlighting Whether to enable the rich code editor for the user. * False if not empty. * @type string\|bool $comment_shortcuts Whether to enable comment moderation keyboard * shortcuts for the user. Default false. * @type string $admin_color Admin color scheme for the user. Default 'fresh'. * @type bool $use_ssl Whether the user should always access the admin over * https. Default false. * @type string $user_registered Date the user registered. Format is 'Y-m-d H:i:s'. * @type string\|bool $show_admin_bar_front Whether to display the Admin Bar for the user on the * site's front end. Default true. * @type string $role User's role. * @type string $locale User's locale. Default empty. * } * @return int\|WP_Error The newly created user's ID or a WP_Error object if the user could not * be created. / function wp_insert_user( $userdata ) { global $wpdb; if ( $userdata instanceof stdClass ) { $userdata = get_object_vars( $userdata ); } elseif ( $userdata instanceof WP_User ) { $userdata = $userdata->to_array(); } // Are we updating or creating? if ( ! empty( $userdata['ID'] ) ) { $ID = (int) $userdata['ID']; $update = true; $old_user_data = get_userdata( $ID ); if ( ! $old_user_data ) { return new WP_Error( 'invalid_user_id', __( 'Invalid user ID.' ) ); } // hashed in wp_update_user(), plaintext if called directly $user_pass = ! empty( $userdata['user_pass'] ) ? $userdata['user_pass'] : $old_user_data->user_pass; } else { $update = false; // Hash the password $user_pass = wp_hash_password( $userdata['user_pass'] ); } $sanitized_user_login = sanitize_user( $userdata['user_login'], true ); /* * Filters a username after it has been sanitized. * * This filter is called before the user is created or updated. * * @since 2.0.3 * * @param string $sanitized_user_login Username after it has been sanitized. / $pre_user_login = apply_filters( 'pre_user_login', $sanitized_user_login ); //Remove any non-printable chars from the login string to see if we have ended up with an empty username $user_login = trim( $pre_user_login ); // user_login must be between 0 and 60 characters. if ( empty( $user_login ) ) { return new WP_Error( 'empty_user_login', __( 'Cannot create a user with an empty login name.' ) ); } elseif ( mb_strlen( $user_login ) > 60 ) { return new WP_Error( 'user_login_too_long', __( 'Username may not be longer than 60 characters.' ) ); } if ( ! $update && username_exists( $user_login ) ) { return new WP_Error( 'existing_user_login', __( 'Sorry, that username already exists!' ) ); } /* * Filters the list of blacklisted usernames. * * @since 4.4.0 * * @param array $usernames Array of blacklisted usernames. / $illegal_logins = (array) apply_filters( 'illegal_user_logins', array() ); if ( in_array( strtolower( $user_login ), array_map( 'strtolower', $illegal_logins ) ) ) { return new WP_Error( 'invalid_username', __( 'Sorry, that username is not allowed.' ) ); } / * If a nicename is provided, remove unsafe user characters before using it. * Otherwise build a nicename from the user_login. / if ( ! empty( $userdata['user_nicename'] ) ) { $user_nicename = sanitize_user( $userdata['user_nicename'], true ); if ( mb_strlen( $user_nicename ) > 50 ) { return new WP_Error( 'user_nicename_too_long', __( 'Nicename may not be longer than 50 characters.' ) ); } } else { $user_nicename = mb_substr( $user_login, 0, 50 ); } $user_nicename = sanitize_title( $user_nicename ); // Store values to save in user meta. $meta = array(); /* * Filters a user's nicename before the user is created or updated. * * @since 2.0.3 * * @param string $user_nicename The user's nicename. / $user_nicename = apply_filters( 'pre_user_nicename', $user_nicename ); $raw_user_url = empty( $userdata['user_url'] ) ? '' : $userdata['user_url']; /* * Filters a user's URL before the user is created or updated. * * @since 2.0.3 * * @param string $raw_user_url The user's URL. / $user_url = apply_filters( 'pre_user_url', $raw_user_url ); $raw_user_email = empty( $userdata['user_email'] ) ? '' : $userdata['user_email']; /* * Filters a user's email before the user is created or updated. * * @since 2.0.3 * * @param string $raw_user_email The user's email. / $user_email = apply_filters( 'pre_user_email', $raw_user_email ); / * If there is no update, just check for `email_exists`. If there is an update, * check if current email and new email are the same, or not, and check `email_exists` * accordingly. / if ( ( ! $update \|\| ( ! empty( $old_user_data ) && 0 !== strcasecmp( $user_email, $old_user_data->user_email ) ) ) && ! defined( 'WP_IMPORTING' ) && email_exists( $user_email ) ) { return new WP_Error( 'existing_user_email', __( 'Sorry, that email address is already used!' ) ); } $nickname = empty( $userdata['nickname'] ) ? $user_login : $userdata['nickname']; /* * Filters a user's nickname before the user is created or updated. * * @since 2.0.3 * * @param string $nickname The user's nickname. / $meta['nickname'] = apply_filters( 'pre_user_nickname', $nickname ); $first_name = empty( $userdata['first_name'] ) ? '' : $userdata['first_name']; /* * Filters a user's first name before the user is created or updated. * * @since 2.0.3 * * @param string $first_name The user's first name. / $meta['first_name'] = apply_filters( 'pre_user_first_name', $first_name ); $last_name = empty( $userdata['last_name'] ) ? '' : $userdata['last_name']; /* * Filters a user's last name before the user is created or updated. * * @since 2.0.3 * * @param string $last_name The user's last name. / $meta['last_name'] = apply_filters( 'pre_user_last_name', $last_name ); if ( empty( $userdata['display_name'] ) ) { if ( $update ) { $display_name = $user_login; } elseif ( $meta['first_name'] && $meta['last_name'] ) { / translators: 1: first name, 2: last name / $display_name = sprintf( _x( '%1$s %2$s', 'Display name based on first name and last name' ), $meta['first_name'], $meta['last_name'] ); } elseif ( $meta['first_name'] ) { $display_name = $meta['first_name']; } elseif ( $meta['last_name'] ) { $display_name = $meta['last_name']; } else { $display_name = $user_login; } } else { $display_name = $userdata['display_name']; } /* * Filters a user's display name before the user is created or updated. * * @since 2.0.3 * * @param string $display_name The user's display name. / $display_name = apply_filters( 'pre_user_display_name', $display_name ); $description = empty( $userdata['description'] ) ? '' : $userdata['description']; /* * Filters a user's description before the user is created or updated. * * @since 2.0.3 * * @param string $description The user's description. / $meta['description'] = apply_filters( 'pre_user_description', $description ); $meta['rich_editing'] = empty( $userdata['rich_editing'] ) ? 'true' : $userdata['rich_editing']; $meta['syntax_highlighting'] = empty( $userdata['syntax_highlighting'] ) ? 'true' : $userdata['syntax_highlighting']; $meta['comment_shortcuts'] = empty( $userdata['comment_shortcuts'] ) \|\| 'false' === $userdata['comment_shortcuts'] ? 'false' : 'true'; $admin_color = empty( $userdata['admin_color'] ) ? 'fresh' : $userdata['admin_color']; $meta['admin_color'] = preg_replace( '\|[^a-z0-9 _.\-@]\|i', '', $admin_color ); $meta['use_ssl'] = empty( $userdata['use_ssl'] ) ? 0 : $userdata['use_ssl']; $user_registered = empty( $userdata['user_registered'] ) ? gmdate( 'Y-m-d H:i:s' ) : $userdata['user_registered']; $meta['show_admin_bar_front'] = empty( $userdata['show_admin_bar_front'] ) ? 'true' : $userdata['show_admin_bar_front']; $meta['locale'] = isset( $userdata['locale'] ) ? $userdata['locale'] : ''; $user_nicename_check = $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->users WHERE user_nicename = %s AND user_login != %s LIMIT 1", $user_nicename, $user_login ) ); if ( $user_nicename_check ) { $suffix = 2; while ( $user_nicename_check ) { // user_nicename allows 50 chars. Subtract one for a hyphen, plus the length of the suffix. $base_length = 49 - mb_strlen( $suffix ); $alt_user_nicename = mb_substr( $user_nicename, 0, $base_length ) . "-$suffix"; $user_nicename_check = $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->users WHERE user_nicename = %s AND user_login != %s LIMIT 1", $alt_user_nicename, $user_login ) ); $suffix++; } $user_nicename = $alt_user_nicename; } $compacted = compact( 'user_pass', 'user_email', 'user_url', 'user_nicename', 'display_name', 'user_registered' ); $data = wp_unslash( $compacted ); if ( ! $update ) { $data = $data + compact( 'user_login' ); } /* * Filters user data before the record is created or updated. * * It only includes data in the wp_users table wp_user, not any user metadata. * * @since 4.9.0 * * @param array $data { * Values and keys for the user. * * @type string $user_login The user's login. Only included if $update == false * @type string $user_pass The user's password. * @type string $user_email The user's email. * @type string $user_url The user's url. * @type string $user_nicename The user's nice name. Defaults to a URL-safe version of user's login * @type string $display_name The user's display name. * @type string $user_registered MySQL timestamp describing the moment when the user registered. Defaults to * the current UTC timestamp. * } * @param bool $update Whether the user is being updated rather than created. * @param int\|null $id ID of the user to be updated, or NULL if the user is being created. / $data = apply_filters( 'wp_pre_insert_user_data', $data, $update, $update ? (int) $ID : null ); if ( $update ) { if ( $user_email !== $old_user_data->user_email \|\| $user_pass !== $old_user_data->user_pass ) { $data['user_activation_key'] = ''; } $wpdb->update( $wpdb->users, $data, compact( 'ID' ) ); $user_id = (int) $ID; } else { $wpdb->insert( $wpdb->users, $data ); $user_id = (int) $wpdb->insert_id; } $user = new WP_User( $user_id ); /* * Filters a user's meta values and keys immediately after the user is created or updated * and before any user meta is inserted or updated. * * Does not include contact methods. These are added using `wp_get_user_contact_methods( $user )`. * * @since 4.4.0 * * @param array $meta { * Default meta values and keys for the user. * * @type string $nickname The user's nickname. Default is the user's username. * @type string $first_name The user's first name. * @type string $last_name The user's last name. * @type string $description The user's description. * @type bool $rich_editing Whether to enable the rich-editor for the user. False if not empty. * @type bool $syntax_highlighting Whether to enable the rich code editor for the user. False if not empty. * @type bool $comment_shortcuts Whether to enable keyboard shortcuts for the user. Default false. * @type string $admin_color The color scheme for a user's admin screen. Default 'fresh'. * @type int\|bool $use_ssl Whether to force SSL on the user's admin area. 0\|false if SSL is * not forced. * @type bool $show_admin_bar_front Whether to show the admin bar on the front end for the user. * Default true. * } * @param WP_User $user User object. * @param bool $update Whether the user is being updated rather than created. / $meta = apply_filters( 'insert_user_meta', $meta, $user, $update ); // Update user meta. foreach ( $meta as $key => $value ) { update_user_meta( $user_id, $key, $value ); } foreach ( wp_get_user_contact_methods( $user ) as $key => $value ) { if ( isset( $userdata[ $key ] ) ) { update_user_meta( $user_id, $key, $userdata[ $key ] ); } } if ( isset( $userdata['role'] ) ) { $user->set_role( $userdata['role'] ); } elseif ( ! $update ) { $user->set_role( get_option( 'default_role' ) ); } wp_cache_delete( $user_id, 'users' ); wp_cache_delete( $user_login, 'userlogins' ); if ( $update ) { /* * Fires immediately after an existing user is updated. * * @since 2.0.0 * * @param int $user_id User ID. * @param WP_User $old_user_data Object containing user's data prior to update. / do_action( 'profile_update', $user_id, $old_user_data ); } else { /* * Fires immediately after a new user is registered. * * @since 1.5.0 * * @param int $user_id User ID. / do_action( 'user_register', $user_id ); } return $user_id; } /* * Update a user in the database. * * It is possible to update a user's password by specifying the 'user_pass' * value in the $userdata parameter array. * * If current user's password is being updated, then the cookies will be * cleared. * * @since 2.0.0 * * @see wp_insert_user() For what fields can be set in $userdata. * * @param array\|object\|WP_User $userdata An array of user data or a user object of type stdClass or WP_User. * @return int\|WP_Error The updated user's ID or a WP_Error object if the user could not be updated. / function wp_update_user( $userdata ) { if ( $userdata instanceof stdClass ) { $userdata = get_object_vars( $userdata ); } elseif ( $userdata instanceof WP_User ) { $userdata = $userdata->to_array(); } $ID = isset( $userdata['ID'] ) ? (int) $userdata['ID'] : 0; if ( ! $ID ) { return new WP_Error( 'invalid_user_id', __( 'Invalid user ID.' ) ); } // First, get all of the original fields $user_obj = get_userdata( $ID ); if ( ! $user_obj ) { return new WP_Error( 'invalid_user_id', __( 'Invalid user ID.' ) ); } $user = $user_obj->to_array(); // Add additional custom fields foreach ( _get_additional_user_keys( $user_obj ) as $key ) { $user[ $key ] = get_user_meta( $ID, $key, true ); } // Escape data pulled from DB. $user = add_magic_quotes( $user ); if ( ! empty( $userdata['user_pass'] ) && $userdata['user_pass'] !== $user_obj->user_pass ) { // If password is changing, hash it now $plaintext_pass = $userdata['user_pass']; $userdata['user_pass'] = wp_hash_password( $userdata['user_pass'] ); /* * Filters whether to send the password change email. * * @since 4.3.0 * * @see wp_insert_user() For `$user` and `$userdata` fields. * * @param bool $send Whether to send the email. * @param array $user The original user array. * @param array $userdata The updated user array. / $send_password_change_email = apply_filters( 'send_password_change_email', true, $user, $userdata ); } if ( isset( $userdata['user_email'] ) && $user['user_email'] !== $userdata['user_email'] ) { /* * Filters whether to send the email change email. * * @since 4.3.0 * * @see wp_insert_user() For `$user` and `$userdata` fields. * * @param bool $send Whether to send the email. * @param array $user The original user array. * @param array $userdata The updated user array. / $send_email_change_email = apply_filters( 'send_email_change_email', true, $user, $userdata ); } wp_cache_delete( $user['user_email'], 'useremail' ); wp_cache_delete( $user['user_nicename'], 'userslugs' ); // Merge old and new fields with new fields overwriting old ones. $userdata = array_merge( $user, $userdata ); $user_id = wp_insert_user( $userdata ); if ( ! is_wp_error( $user_id ) ) { $blog_name = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ); $switched_locale = false; if ( ! empty( $send_password_change_email ) \|\| ! empty( $send_email_change_email ) ) { $switched_locale = switch_to_locale( get_user_locale( $user_id ) ); } if ( ! empty( $send_password_change_email ) ) { / translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. / $pass_change_text = __( 'Hi ###USERNAME###, This notice confirms that your password was changed on ###SITENAME###. If you did not change your password, please contact the Site Administrator at ###ADMIN_EMAIL### This email has been sent to ###EMAIL### Regards, All at ###SITENAME### ###SITEURL###' ); $pass_change_email = array( 'to' => $user['user_email'], / translators: User password change notification email subject. %s: Site name / 'subject' => __( '[%s] Notice of Password Change' ), 'message' => $pass_change_text, 'headers' => '', ); /* * Filters the contents of the email sent when the user's password is changed. * * @since 4.3.0 * * @param array $pass_change_email { * Used to build wp_mail(). * @type string $to The intended recipients. Add emails in a comma separated string. * @type string $subject The subject of the email. * @type string $message The content of the email. * The following strings have a special meaning and will get replaced dynamically: * - ###USERNAME### The current user's username. * - ###ADMIN_EMAIL### The admin email in case this was unexpected. * - ###EMAIL### The user's email address. * - ###SITENAME### The name of the site. * - ###SITEURL### The URL to the site. * @type string $headers Headers. Add headers in a newline (\r\n) separated string. * } * @param array $user The original user array. * @param array $userdata The updated user array. / $pass_change_email = apply_filters( 'password_change_email', $pass_change_email, $user, $userdata ); $pass_change_email['message'] = str_replace( '###USERNAME###', $user['user_login'], $pass_change_email['message'] ); $pass_change_email['message'] = str_replace( '###ADMIN_EMAIL###', get_option( 'admin_email' ), $pass_change_email['message'] ); $pass_change_email['message'] = str_replace( '###EMAIL###', $user['user_email'], $pass_change_email['message'] ); $pass_change_email['message'] = str_replace( '###SITENAME###', $blog_name, $pass_change_email['message'] ); $pass_change_email['message'] = str_replace( '###SITEURL###', home_url(), $pass_change_email['message'] ); wp_mail( $pass_change_email['to'], sprintf( $pass_change_email['subject'], $blog_name ), $pass_change_email['message'], $pass_change_email['headers'] ); } if ( ! empty( $send_email_change_email ) ) { / translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. / $email_change_text = __( 'Hi ###USERNAME###, This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###. If you did not change your email, please contact the Site Administrator at ###ADMIN_EMAIL### This email has been sent to ###EMAIL### Regards, All at ###SITENAME### ###SITEURL###' ); $email_change_email = array( 'to' => $user['user_email'], / translators: User email change notification email subject. %s: Site name / 'subject' => __( '[%s] Notice of Email Change' ), 'message' => $email_change_text, 'headers' => '', ); /* * Filters the contents of the email sent when the user's email is changed. * * @since 4.3.0 * * @param array $email_change_email { * Used to build wp_mail(). * @type string $to The intended recipients. * @type string $subject The subject of the email. * @type string $message The content of the email. * The following strings have a special meaning and will get replaced dynamically: * - ###USERNAME### The current user's username. * - ###ADMIN_EMAIL### The admin email in case this was unexpected. * - ###NEW_EMAIL### The new email address. * - ###EMAIL### The old email address. * - ###SITENAME### The name of the site. * - ###SITEURL### The URL to the site. * @type string $headers Headers. * } * @param array $user The original user array. * @param array $userdata The updated user array. / $email_change_email = apply_filters( 'email_change_email', $email_change_email, $user, $userdata ); $email_change_email['message'] = str_replace( '###USERNAME###', $user['user_login'], $email_change_email['message'] ); $email_change_email['message'] = str_replace( '###ADMIN_EMAIL###', get_option( 'admin_email' ), $email_change_email['message'] ); $email_change_email['message'] = str_replace( '###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message'] ); $email_change_email['message'] = str_replace( '###EMAIL###', $user['user_email'], $email_change_email['message'] ); $email_change_email['message'] = str_replace( '###SITENAME###', $blog_name, $email_change_email['message'] ); $email_change_email['message'] = str_replace( '###SITEURL###', home_url(), $email_change_email['message'] ); wp_mail( $email_change_email['to'], sprintf( $email_change_email['subject'], $blog_name ), $email_change_email['message'], $email_change_email['headers'] ); } if ( $switched_locale ) { restore_previous_locale(); } } // Update the cookies if the password changed. $current_user = wp_get_current_user(); if ( $current_user->ID == $ID ) { if ( isset( $plaintext_pass ) ) { wp_clear_auth_cookie(); // Here we calculate the expiration length of the current auth cookie and compare it to the default expiration. // If it's greater than this, then we know the user checked 'Remember Me' when they logged in. $logged_in_cookie = wp_parse_auth_cookie( '', 'logged_in' ); /* This filter is documented in site-inc/pluggable.php / $default_cookie_life = apply_filters( 'auth_cookie_expiration', ( 2 DAY_IN_SECONDS ), $ID, false ); $remember = ( ( $logged_in_cookie['expiration'] - time() ) > $default_cookie_life ); wp_set_auth_cookie( $ID, $remember ); } } return $user_id; } /** * A simpler way of inserting a user into the database. * * Creates a new user with just the username, password, and email. For more * complex user creation use wp_insert_user() to specify more information. * * @since 2.0.0 * @see wp_insert_user() More complete way to create a new user * * @param string $username The user's username. * @param string $password The user's password. * @param string $email Optional. The user's email. Default empty. * @return int\|WP_Error The newly created user's ID or a WP_Error object if the user could not * be created. / function wp_create_user( $username, $password, $email = '' ) { $user_login = wp_slash( $username ); $user_email = wp_slash( $email ); $user_pass = $password; $userdata = compact( 'user_login', 'user_email', 'user_pass' ); return wp_insert_user( $userdata ); } /* * Returns a list of meta keys to be (maybe) populated in wp_update_user(). * * The list of keys returned via this function are dependent on the presence * of those keys in the user meta data to be set. * * @since 3.3.0 * @access private * * @param WP_User $user WP_User instance. * @return array List of user keys to be populated in wp_update_user(). / function _get_additional_user_keys( $user ) { $keys = array( 'first_name', 'last_name', 'nickname', 'description', 'rich_editing', 'syntax_highlighting', 'comment_shortcuts', 'admin_color', 'use_ssl', 'show_admin_bar_front', 'locale' ); return array_merge( $keys, array_keys( wp_get_user_contact_methods( $user ) ) ); } /* * Set up the user contact methods. * * Default contact methods were removed in 3.6. A filter dictates contact methods. * * @since 3.7.0 * * @param WP_User $user Optional. WP_User object. * @return array Array of contact methods and their labels. / function wp_get_user_contact_methods( $user = null ) { $methods = array(); if ( get_site_option( 'initial_db_version' ) < 23588 ) { $methods = array( 'aim' => __( 'AIM' ), 'yim' => __( 'Yahoo IM' ), 'jabber' => __( 'Jabber / Google Talk' ), ); } /* * Filters the user contact methods. * * @since 2.9.0 * * @param array $methods Array of contact methods and their labels. * @param WP_User $user WP_User object. / return apply_filters( 'user_contactmethods', $methods, $user ); } /* * The old private function for setting up user contact methods. * * Use wp_get_user_contact_methods() instead. * * @since 2.9.0 * @access private * * @param WP_User $user Optional. WP_User object. Default null. * @return array Array of contact methods and their labels. / function _wp_get_user_contactmethods( $user = null ) { return wp_get_user_contact_methods( $user ); } /* * Gets the text suggesting how to create strong passwords. * * @since 4.1.0 * * @return string The password hint text. / function wp_get_password_hint() { $hint = __( 'Hint: The password should be at least twelve characters long. To make it stronger, use upper and lower case letters, numbers, and symbols like ! " ? $ % ^ & ).' ); /* * Filters the text describing the site's password complexity policy. * * @since 4.1.0 * * @param string $hint The password hint text. / return apply_filters( 'password_hint', $hint ); } /* * Creates, stores, then returns a password reset key for user. * * @since 4.4.0 * * @global wpdb $wpdb WordPress database abstraction object. * @global PasswordHash $wp_hasher Portable PHP password hashing framework. * * @param WP_User $user User to retrieve password reset key for. * * @return string\|WP_Error Password reset key on success. WP_Error on error. / function get_password_reset_key( $user ) { global $wpdb, $wp_hasher; if ( ! ( $user instanceof WP_User ) ) { return new WP_Error( 'invalidcombo', __( '<strong>ERROR</strong>: There is no account with that username or email address.' ) ); } /* * Fires before a new password is retrieved. * * Use the {@see 'retrieve_password'} hook instead. * * @since 1.5.0 * @deprecated 1.5.1 Misspelled. Use 'retrieve_password' hook instead. * * @param string $user_login The user login name. / do_action( 'retreive_password', $user->user_login ); /* * Fires before a new password is retrieved. * * @since 1.5.1 * * @param string $user_login The user login name. / do_action( 'retrieve_password', $user->user_login ); $allow = true; if ( is_multisite() && is_user_spammy( $user ) ) { $allow = false; } /* * Filters whether to allow a password to be reset. * * @since 2.7.0 * * @param bool $allow Whether to allow the password to be reset. Default true. * @param int $user_data->ID The ID of the user attempting to reset a password. / $allow = apply_filters( 'allow_password_reset', $allow, $user->ID ); if ( ! $allow ) { return new WP_Error( 'no_password_reset', __( 'Password reset is not allowed for this user' ) ); } elseif ( is_wp_error( $allow ) ) { return $allow; } // Generate something random for a password reset key. $key = wp_generate_password( 20, false ); /* * Fires when a password reset key is generated. * * @since 2.5.0 * * @param string $user_login The username for the user. * @param string $key The generated password reset key. / do_action( 'retrieve_password_key', $user->user_login, $key ); // Now insert the key, hashed, into the DB. if ( empty( $wp_hasher ) ) { require_once ABSPATH . WPINC . '/class-phpass.php'; $wp_hasher = new PasswordHash( 8, true ); } $hashed = time() . ':' . $wp_hasher->HashPassword( $key ); $key_saved = $wpdb->update( $wpdb->users, array( 'user_activation_key' => $hashed ), array( 'user_login' => $user->user_login ) ); if ( false === $key_saved ) { return new WP_Error( 'no_password_key_update', __( 'Could not save password reset key to database.' ) ); } return $key; } /* * Retrieves a user row based on password reset key and login * * A key is considered 'expired' if it exactly matches the value of the * user_activation_key field, rather than being matched after going through the * hashing process. This field is now hashed; old values are no longer accepted * but have a different WP_Error code so good user feedback can be provided. * * @since 3.1.0 * * @global wpdb $wpdb WordPress database object for queries. * @global PasswordHash $wp_hasher Portable PHP password hashing framework instance. * * @param string $key Hash to validate sending user's password. * @param string $login The user login. * @return WP_User\|WP_Error WP_User object on success, WP_Error object for invalid or expired keys. / function check_password_reset_key( $key, $login ) { global $wpdb, $wp_hasher; $key = preg_replace( '/[^a-z0-9]/i', '', $key ); if ( empty( $key ) \|\| ! is_string( $key ) ) { return new WP_Error( 'invalid_key', __( 'Invalid key' ) ); } if ( empty( $login ) \|\| ! is_string( $login ) ) { return new WP_Error( 'invalid_key', __( 'Invalid key' ) ); } $row = $wpdb->get_row( $wpdb->prepare( "SELECT ID, user_activation_key FROM $wpdb->users WHERE user_login = %s", $login ) ); if ( ! $row ) { return new WP_Error( 'invalid_key', __( 'Invalid key' ) ); } if ( empty( $wp_hasher ) ) { require_once ABSPATH . WPINC . '/class-phpass.php'; $wp_hasher = new PasswordHash( 8, true ); } /* * Filters the expiration time of password reset keys. * * @since 4.3.0 * * @param int $expiration The expiration time in seconds. / $expiration_duration = apply_filters( 'password_reset_expiration', DAY_IN_SECONDS ); if ( false !== strpos( $row->user_activation_key, ':' ) ) { list( $pass_request_time, $pass_key ) = explode( ':', $row->user_activation_key, 2 ); $expiration_time = $pass_request_time + $expiration_duration; } else { $pass_key = $row->user_activation_key; $expiration_time = false; } if ( ! $pass_key ) { return new WP_Error( 'invalid_key', __( 'Invalid key' ) ); } $hash_is_correct = $wp_hasher->CheckPassword( $key, $pass_key ); if ( $hash_is_correct && $expiration_time && time() < $expiration_time ) { return get_userdata( $row->ID ); } elseif ( $hash_is_correct && $expiration_time ) { // Key has an expiration time that's passed return new WP_Error( 'expired_key', __( 'Invalid key' ) ); } if ( hash_equals( $row->user_activation_key, $key ) \|\| ( $hash_is_correct && ! $expiration_time ) ) { $return = new WP_Error( 'expired_key', __( 'Invalid key' ) ); $user_id = $row->ID; /* * Filters the return value of check_password_reset_key() when an * old-style key is used. * * @since 3.7.0 Previously plain-text keys were stored in the database. * @since 4.3.0 Previously key hashes were stored without an expiration time. * * @param WP_Error $return A WP_Error object denoting an expired key. * Return a WP_User object to validate the key. * @param int $user_id The matched user ID. / return apply_filters( 'password_reset_key_expired', $return, $user_id ); } return new WP_Error( 'invalid_key', __( 'Invalid key' ) ); } /* * Handles resetting the user's password. * * @since 2.5.0 * * @param WP_User $user The user * @param string $new_pass New password for the user in plaintext / function reset_password( $user, $new_pass ) { /* * Fires before the user's password is reset. * * @since 1.5.0 * * @param object $user The user. * @param string $new_pass New user password. / do_action( 'password_reset', $user, $new_pass ); wp_set_password( $new_pass, $user->ID ); update_user_option( $user->ID, 'default_password_nag', false, true ); /* * Fires after the user's password is reset. * * @since 4.4.0 * * @param WP_User $user The user. * @param string $new_pass New user password. / do_action( 'after_password_reset', $user, $new_pass ); } /* * Handles registering a new user. * * @since 2.5.0 * * @param string $user_login User's username for logging in * @param string $user_email User's email address to send password and add * @return int\|WP_Error Either user's ID or error on failure. / function register_new_user( $user_login, $user_email ) { $errors = new WP_Error(); $sanitized_user_login = sanitize_user( $user_login ); /* * Filters the email address of a user being registered. * * @since 2.1.0 * * @param string $user_email The email address of the new user. / $user_email = apply_filters( 'user_registration_email', $user_email ); // Check the username if ( $sanitized_user_login == '' ) { $errors->add( 'empty_username', __( '<strong>ERROR</strong>: Please enter a username.' ) ); } elseif ( ! validate_username( $user_login ) ) { $errors->add( 'invalid_username', __( '<strong>ERROR</strong>: This username is invalid because it uses illegal characters. Please enter a valid username.' ) ); $sanitized_user_login = ''; } elseif ( username_exists( $sanitized_user_login ) ) { $errors->add( 'username_exists', __( '<strong>ERROR</strong>: This username is already registered. Please choose another one.' ) ); } else { /* This filter is documented in site-inc/user.php / $illegal_user_logins = array_map( 'strtolower', (array) apply_filters( 'illegal_user_logins', array() ) ); if ( in_array( strtolower( $sanitized_user_login ), $illegal_user_logins ) ) { $errors->add( 'invalid_username', __( '<strong>ERROR</strong>: Sorry, that username is not allowed.' ) ); } } // Check the email address if ( $user_email == '' ) { $errors->add( 'empty_email', __( '<strong>ERROR</strong>: Please type your email address.' ) ); } elseif ( ! is_email( $user_email ) ) { $errors->add( 'invalid_email', __( '<strong>ERROR</strong>: The email address isn’t correct.' ) ); $user_email = ''; } elseif ( email_exists( $user_email ) ) { $errors->add( 'email_exists', __( '<strong>ERROR</strong>: This email is already registered, please choose another one.' ) ); } /* * Fires when submitting registration form data, before the user is created. * * @since 2.1.0 * * @param string $sanitized_user_login The submitted username after being sanitized. * @param string $user_email The submitted email. * @param WP_Error $errors Contains any errors with submitted username and email, * e.g., an empty field, an invalid username or email, * or an existing username or email. / do_action( 'register_post', $sanitized_user_login, $user_email, $errors ); /* * Filters the errors encountered when a new user is being registered. * * The filtered WP_Error object may, for example, contain errors for an invalid * or existing username or email address. A WP_Error object should always returned, * but may or may not contain errors. * * If any errors are present in $errors, this will abort the user's registration. * * @since 2.1.0 * * @param WP_Error $errors A WP_Error object containing any errors encountered * during registration. * @param string $sanitized_user_login User's username after it has been sanitized. * @param string $user_email User's email. / $errors = apply_filters( 'registration_errors', $errors, $sanitized_user_login, $user_email ); if ( $errors->has_errors() ) { return $errors; } $user_pass = wp_generate_password( 12, false ); $user_id = wp_create_user( $sanitized_user_login, $user_pass, $user_email ); if ( ! $user_id \|\| is_wp_error( $user_id ) ) { $errors->add( 'registerfail', sprintf( __( '<strong>ERROR</strong>: Couldn’t register you… please contact the <a href="mailto:%s">webmaster</a> !' ), get_option( 'admin_email' ) ) ); return $errors; } update_user_option( $user_id, 'default_password_nag', true, true ); //Set up the Password change nag. /* * Fires after a new user registration has been recorded. * * @since 4.4.0 * * @param int $user_id ID of the newly registered user. / do_action( 'register_new_user', $user_id ); return $user_id; } /* * Initiates email notifications related to the creation of new users. * * Notifications are sent both to the site admin and to the newly created user. * * @since 4.4.0 * @since 4.6.0 Converted the `$notify` parameter to accept 'user' for sending * notifications only to the user created. * * @param int $user_id ID of the newly created user. * @param string $notify Optional. Type of notification that should happen. Accepts 'admin' * or an empty string (admin only), 'user', or 'both' (admin and user). * Default 'both'. / function wp_send_new_user_notifications( $user_id, $notify = 'both' ) { wp_new_user_notification( $user_id, null, $notify ); } /* * Retrieve the current session token from the logged_in cookie. * * @since 4.0.0 * * @return string Token. / function wp_get_session_token() { $cookie = wp_parse_auth_cookie( '', 'logged_in' ); return ! empty( $cookie['token'] ) ? $cookie['token'] : ''; } /* * Retrieve a list of sessions for the current user. * * @since 4.0.0 * @return array Array of sessions. / function wp_get_all_sessions() { $manager = WP_Session_Tokens::get_instance( get_current_user_id() ); return $manager->get_all(); } /* * Remove the current session token from the database. * * @since 4.0.0 / function wp_destroy_current_session() { $token = wp_get_session_token(); if ( $token ) { $manager = WP_Session_Tokens::get_instance( get_current_user_id() ); $manager->destroy( $token ); } } /* * Remove all but the current session token for the current user for the database. * * @since 4.0.0 / function wp_destroy_other_sessions() { $token = wp_get_session_token(); if ( $token ) { $manager = WP_Session_Tokens::get_instance( get_current_user_id() ); $manager->destroy_others( $token ); } } /* * Remove all session tokens for the current user from the database. * * @since 4.0.0 / function wp_destroy_all_sessions() { $manager = WP_Session_Tokens::get_instance( get_current_user_id() ); $manager->destroy_all(); } /* * Get the user IDs of all users with no role on this site. * * @since 4.4.0 * @since 4.9.0 The `$site_id` parameter was added to support multisite. * * @param int\|null $site_id Optional. The site ID to get users with no role for. Defaults to the current site. * @return array Array of user IDs. / function wp_get_users_with_no_role( $site_id = null ) { global $wpdb; if ( ! $site_id ) { $site_id = get_current_blog_id(); } $prefix = $wpdb->get_blog_prefix( $site_id ); if ( is_multisite() && $site_id != get_current_blog_id() ) { switch_to_blog( $site_id ); $role_names = wp_roles()->get_names(); restore_current_blog(); } else { $role_names = wp_roles()->get_names(); } $regex = implode( '\|', array_keys( $role_names ) ); $regex = preg_replace( '/[^a-zA-Z_\\|-]/', '', $regex ); $users = $wpdb->get_col( $wpdb->prepare( " SELECT user_id FROM $wpdb->usermeta WHERE meta_key = '{$prefix}capabilities' AND meta_value NOT REGEXP %s ", $regex ) ); return $users; } /* * Retrieves the current user object. * * Will set the current user, if the current user is not set. The current user * will be set to the logged-in person. If no user is logged-in, then it will * set the current user to 0, which is invalid and won't have any permissions. * * This function is used by the pluggable functions wp_get_current_user() and * get_currentuserinfo(), the latter of which is deprecated but used for backward * compatibility. * * @since 4.5.0 * @access private * * @see wp_get_current_user() * @global WP_User $current_user Checks if the current user is set. * * @return WP_User Current WP_User instance. / function _wp_get_current_user() { global $current_user; if ( ! empty( $current_user ) ) { if ( $current_user instanceof WP_User ) { return $current_user; } // Upgrade stdClass to WP_User if ( is_object( $current_user ) && isset( $current_user->ID ) ) { $cur_id = $current_user->ID; $current_user = null; wp_set_current_user( $cur_id ); return $current_user; } // $current_user has a junk value. Force to WP_User with ID 0. $current_user = null; wp_set_current_user( 0 ); return $current_user; } if ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) { wp_set_current_user( 0 ); return $current_user; } /* * Filters the current user. * * The default filters use this to determine the current user from the * request's cookies, if available. * * Returning a value of false will effectively short-circuit setting * the current user. * * @since 3.9.0 * * @param int\|bool $user_id User ID if one has been determined, false otherwise. / $user_id = apply_filters( 'determine_current_user', false ); if ( ! $user_id ) { wp_set_current_user( 0 ); return $current_user; } wp_set_current_user( $user_id ); return $current_user; } /* * Send a confirmation request email when a change of user email address is attempted. * * @since 3.0.0 * @since 4.9.0 This function was moved from site-admin/includes/ms.php so it's no longer Multisite specific. * * @global WP_Error $errors WP_Error object. / function send_confirmation_on_profile_email() { global $errors; $current_user = wp_get_current_user(); if ( ! is_object( $errors ) ) { $errors = new WP_Error(); } if ( $current_user->ID != $_POST['user_id'] ) { return false; } if ( $current_user->user_email != $_POST['email'] ) { if ( ! is_email( $_POST['email'] ) ) { $errors->add( 'user_email', __( '<strong>ERROR</strong>: The email address isn’t correct.' ), array( 'form-field' => 'email', ) ); return; } if ( email_exists( $_POST['email'] ) ) { $errors->add( 'user_email', __( '<strong>ERROR</strong>: The email address is already used.' ), array( 'form-field' => 'email', ) ); delete_user_meta( $current_user->ID, '_new_email' ); return; } $hash = md5( $_POST['email'] . time() . wp_rand() ); $new_user_email = array( 'hash' => $hash, 'newemail' => $_POST['email'], ); update_user_meta( $current_user->ID, '_new_email', $new_user_email ); $sitename = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ); / translators: Do not translate USERNAME, ADMIN_URL, EMAIL, SITENAME, SITEURL: those are placeholders. / $email_text = __( 'Howdy ###USERNAME###, You recently requested to have the email address on your account changed. If this is correct, please click on the following link to change it: ###ADMIN_URL### You can safely ignore and delete this email if you do not want to take this action. This email has been sent to ###EMAIL### Regards, All at ###SITENAME### ###SITEURL###' ); /* * Filters the text of the email sent when a change of user email address is attempted. * * The following strings have a special meaning and will get replaced dynamically: * ###USERNAME### The current user's username. * ###ADMIN_URL### The link to click on to confirm the email change. * ###EMAIL### The new email. * ###SITENAME### The name of the site. * ###SITEURL### The URL to the site. * * @since MU (3.0.0) * @since 4.9.0 This filter is no longer Multisite specific. * * @param string $email_text Text in the email. * @param array $new_user_email { * Data relating to the new user email address. * * @type string $hash The secure hash used in the confirmation link URL. * @type string $newemail The proposed new email address. * } / $content = apply_filters( 'new_user_email_content', $email_text, $new_user_email ); $content = str_replace( '###USERNAME###', $current_user->user_login, $content ); $content = str_replace( '###ADMIN_URL###', esc_url( admin_url( 'profile.php?newuseremail=' . $hash ) ), $content ); $content = str_replace( '###EMAIL###', $_POST['email'], $content ); $content = str_replace( '###SITENAME###', $sitename, $content ); $content = str_replace( '###SITEURL###', home_url(), $content ); wp_mail( $_POST['email'], sprintf( __( '[%s] New Email Address' ), $sitename ), $content ); $_POST['email'] = $current_user->user_email; } } /* * Adds an admin notice alerting the user to check for confirmation request email * after email address change. * * @since 3.0.0 * @since 4.9.0 This function was moved from site-admin/includes/ms.php so it's no longer Multisite specific. * * @global string $pagenow / function new_user_email_admin_notice() { global $pagenow; if ( 'profile.php' === $pagenow && isset( $_GET['updated'] ) ) { $email = get_user_meta( get_current_user_id(), '_new_email', true ); if ( $email ) { / translators: %s: New email address / echo '<div class="notice notice-info"><p>' . sprintf( __( 'Your email address has not been updated yet. Please check your inbox at %s for a confirmation email.' ), '<code>' . esc_html( $email['newemail'] ) . '</code>' ) . '</p></div>'; } } } /* * Get all user privacy request types. * * @since 4.9.6 * @access private * * @return array List of core privacy action types. / function _wp_privacy_action_request_types() { return array( 'export_personal_data', 'remove_personal_data', ); } /* * Registers the personal data exporter for users. * * @since 4.9.6 * * @param array $exporters An array of personal data exporters. * @return array An array of personal data exporters. / function wp_register_user_personal_data_exporter( $exporters ) { $exporters['wordpress-user'] = array( 'exporter_friendly_name' => __( 'WordPress User' ), 'callback' => 'wp_user_personal_data_exporter', ); return $exporters; } /* * Finds and exports personal data associated with an email address from the user and user_meta table. * * @since 4.9.6 * * @param string $email_address The users email address. * @return array An array of personal data. / function wp_user_personal_data_exporter( $email_address ) { $email_address = trim( $email_address ); $data_to_export = array(); $user = get_user_by( 'email', $email_address ); if ( ! $user ) { return array( 'data' => array(), 'done' => true, ); } $user_meta = get_user_meta( $user->ID ); $user_prop_to_export = array( 'ID' => __( 'User ID' ), 'user_login' => __( 'User Login Name' ), 'user_nicename' => __( 'User Nice Name' ), 'user_email' => __( 'User Email' ), 'user_url' => __( 'User URL' ), 'user_registered' => __( 'User Registration Date' ), 'display_name' => __( 'User Display Name' ), 'nickname' => __( 'User Nickname' ), 'first_name' => __( 'User First Name' ), 'last_name' => __( 'User Last Name' ), 'description' => __( 'User Description' ), ); $user_data_to_export = array(); foreach ( $user_prop_to_export as $key => $name ) { $value = ''; switch ( $key ) { case 'ID': case 'user_login': case 'user_nicename': case 'user_email': case 'user_url': case 'user_registered': case 'display_name': $value = $user->data->$key; break; case 'nickname': case 'first_name': case 'last_name': case 'description': $value = $user_meta[ $key ][0]; break; } if ( ! empty( $value ) ) { $user_data_to_export[] = array( 'name' => $name, 'value' => $value, ); } } $data_to_export[] = array( 'group_id' => 'user', 'group_label' => __( 'User' ), 'item_id' => "user-{$user->ID}", 'data' => $user_data_to_export, ); return array( 'data' => $data_to_export, 'done' => true, ); } /* * Update log when privacy request is confirmed. * * @since 4.9.6 * @access private * * @param int $request_id ID of the request. / function _wp_privacy_account_request_confirmed( $request_id ) { $request = wp_get_user_request_data( $request_id ); if ( ! $request ) { return; } if ( ! in_array( $request->status, array( 'request-pending', 'request-failed' ), true ) ) { return; } update_post_meta( $request_id, '_wp_user_request_confirmed_timestamp', time() ); wp_update_post( array( 'ID' => $request_id, 'post_status' => 'request-confirmed', ) ); } /* * Notify the site administrator via email when a request is confirmed. * * Without this, the admin would have to manually check the site to see if any * action was needed on their part yet. * * @since 4.9.6 * * @param int $request_id The ID of the request. / function _wp_privacy_send_request_confirmation_notification( $request_id ) { $request = wp_get_user_request_data( $request_id ); if ( ! is_a( $request, 'WP_User_Request' ) \|\| 'request-confirmed' !== $request->status ) { return; } $already_notified = (bool) get_post_meta( $request_id, '_wp_admin_notified', true ); if ( $already_notified ) { return; } $manage_url = add_query_arg( 'page', $request->action_name, admin_url( 'tools.php' ) ); $action_description = wp_user_request_action_description( $request->action_name ); /* * Filters the recipient of the data request confirmation notification. * * In a Multisite environment, this will default to the email address of the * network admin because, by default, single site admins do not have the * capabilities required to process requests. Some networks may wish to * delegate those capabilities to a single-site admin, or a dedicated person * responsible for managing privacy requests. * * @since 4.9.6 * * @param string $admin_email The email address of the notification recipient. * @param WP_User_Request $request The request that is initiating the notification. / $admin_email = apply_filters( 'user_request_confirmed_email_to', get_site_option( 'admin_email' ), $request ); $email_data = array( 'request' => $request, 'user_email' => $request->email, 'description' => $action_description, 'manage_url' => $manage_url, 'sitename' => wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ), 'siteurl' => home_url(), 'admin_email' => $admin_email, ); / translators: Do not translate SITENAME, USER_EMAIL, DESCRIPTION, MANAGE_URL, SITEURL; those are placeholders. / $email_text = __( 'Howdy, A user data privacy request has been confirmed on ###SITENAME###: User: ###USER_EMAIL### Request: ###DESCRIPTION### You can view and manage these data privacy requests here: ###MANAGE_URL### Regards, All at ###SITENAME### ###SITEURL###' ); /* * Filters the body of the user request confirmation email. * * The email is sent to an administrator when an user request is confirmed. * The following strings have a special meaning and will get replaced dynamically: * * ###SITENAME### The name of the site. * ###USER_EMAIL### The user email for the request. * ###DESCRIPTION### Description of the action being performed so the user knows what the email is for. * ###MANAGE_URL### The URL to manage requests. * ###SITEURL### The URL to the site. * * @since 4.9.6 * * @param string $email_text Text in the email. * @param array $email_data { * Data relating to the account action email. * * @type WP_User_Request $request User request object. * @type string $user_email The email address confirming a request * @type string $description Description of the action being performed so the user knows what the email is for. * @type string $manage_url The link to click manage privacy requests of this type. * @type string $sitename The site name sending the mail. * @type string $siteurl The site URL sending the mail. * @type string $admin_email The administrator email receiving the mail. * } / $content = apply_filters( 'user_confirmed_action_email_content', $email_text, $email_data ); $content = str_replace( '###SITENAME###', $email_data['sitename'], $content ); $content = str_replace( '###USER_EMAIL###', $email_data['user_email'], $content ); $content = str_replace( '###DESCRIPTION###', $email_data['description'], $content ); $content = str_replace( '###MANAGE_URL###', esc_url_raw( $email_data['manage_url'] ), $content ); $content = str_replace( '###SITEURL###', esc_url_raw( $email_data['siteurl'] ), $content ); $subject = sprintf( / translators: 1: Site name. 2: Name of the confirmed action. / __( '[%1$s] Action Confirmed: %2$s' ), $email_data['sitename'], $action_description ); /* * Filters the subject of the user request confirmation email. * * @since 4.9.8 * * @param string $subject The email subject. * @param string $sitename The name of the site. * @param array $email_data { * Data relating to the account action email. * * @type WP_User_Request $request User request object. * @type string $user_email The email address confirming a request * @type string $description Description of the action being performed so the user knows what the email is for. * @type string $manage_url The link to click manage privacy requests of this type. * @type string $sitename The site name sending the mail. * @type string $siteurl The site URL sending the mail. * @type string $admin_email The administrator email receiving the mail. * } / $subject = apply_filters( 'user_request_confirmed_email_subject', $subject, $email_data['sitename'], $email_data ); $email_sent = wp_mail( $email_data['admin_email'], $subject, $content ); if ( $email_sent ) { update_post_meta( $request_id, '_wp_admin_notified', true ); } } /* * Notify the user when their erasure request is fulfilled. * * Without this, the user would never know if their data was actually erased. * * @since 4.9.6 * * @param int $request_id The privacy request post ID associated with this request. / function _wp_privacy_send_erasure_fulfillment_notification( $request_id ) { $request = wp_get_user_request_data( $request_id ); if ( ! is_a( $request, 'WP_User_Request' ) \|\| 'request-completed' !== $request->status ) { return; } $already_notified = (bool) get_post_meta( $request_id, '_wp_user_notified', true ); if ( $already_notified ) { return; } /* * Filters the recipient of the data erasure fulfillment notification. * * @since 4.9.6 * * @param string $user_email The email address of the notification recipient. * @param WP_User_Request $request The request that is initiating the notification. / $user_email = apply_filters( 'user_erasure_fulfillment_email_to', $request->email, $request ); $email_data = array( 'request' => $request, 'message_recipient' => $user_email, 'privacy_policy_url' => get_privacy_policy_url(), 'sitename' => wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ), 'siteurl' => home_url(), ); $subject = sprintf( / translators: %s: Site name. / __( '[%s] Erasure Request Fulfilled' ), $email_data['sitename'] ); /* * Filters the subject of the email sent when an erasure request is completed. * * @since 4.9.8 * * @param string $subject The email subject. * @param string $sitename The name of the site. * @param array $email_data { * Data relating to the account action email. * * @type WP_User_Request $request User request object. * @type string $message_recipient The address that the email will be sent to. Defaults * to the value of `$request->email`, but can be changed * by the `user_erasure_fulfillment_email_to` filter. * @type string $privacy_policy_url Privacy policy URL. * @type string $sitename The site name sending the mail. * @type string $siteurl The site URL sending the mail. * } / $subject = apply_filters( 'user_erasure_complete_email_subject', $subject, $email_data['sitename'], $email_data ); if ( empty( $email_data['privacy_policy_url'] ) ) { / translators: Do not translate SITENAME, SITEURL; those are placeholders. / $email_text = __( 'Howdy, Your request to erase your personal data on ###SITENAME### has been completed. If you have any follow-up questions or concerns, please contact the site administrator. Regards, All at ###SITENAME### ###SITEURL###' ); } else { / translators: Do not translate SITENAME, SITEURL, PRIVACY_POLICY_URL; those are placeholders. / $email_text = __( 'Howdy, Your request to erase your personal data on ###SITENAME### has been completed. If you have any follow-up questions or concerns, please contact the site administrator. For more information, you can also read our privacy policy: ###PRIVACY_POLICY_URL### Regards, All at ###SITENAME### ###SITEURL###' ); } /* * Filters the body of the data erasure fulfillment notification. * * The email is sent to a user when a their data erasure request is fulfilled * by an administrator. * * The following strings have a special meaning and will get replaced dynamically: * * ###SITENAME### The name of the site. * ###PRIVACY_POLICY_URL### Privacy policy page URL. * ###SITEURL### The URL to the site. * * @since 4.9.6 * * @param string $email_text Text in the email. * @param array $email_data { * Data relating to the account action email. * * @type WP_User_Request $request User request object. * @type string $message_recipient The address that the email will be sent to. Defaults * to the value of `$request->email`, but can be changed * by the `user_erasure_fulfillment_email_to` filter. * @type string $privacy_policy_url Privacy policy URL. * @type string $sitename The site name sending the mail. * @type string $siteurl The site URL sending the mail. * } / $content = apply_filters( 'user_confirmed_action_email_content', $email_text, $email_data ); $content = str_replace( '###SITENAME###', $email_data['sitename'], $content ); $content = str_replace( '###PRIVACY_POLICY_URL###', $email_data['privacy_policy_url'], $content ); $content = str_replace( '###SITEURL###', esc_url_raw( $email_data['siteurl'] ), $content ); $email_sent = wp_mail( $user_email, $subject, $content ); if ( $email_sent ) { update_post_meta( $request_id, '_wp_user_notified', true ); } } /* * Return request confirmation message HTML. * * @since 4.9.6 * @access private * * @param int $request_id The request ID being confirmed. * @return string $message The confirmation message. / function _wp_privacy_account_request_confirmed_message( $request_id ) { $request = wp_get_user_request_data( $request_id ); $message = '<p class="success">' . __( 'Action has been confirmed.' ) . '</p>'; $message .= '<p>' . __( 'The site administrator has been notified and will fulfill your request as soon as possible.' ) . '</p>'; if ( $request && in_array( $request->action_name, _wp_privacy_action_request_types(), true ) ) { if ( 'export_personal_data' === $request->action_name ) { $message = '<p class="success">' . __( 'Thanks for confirming your export request.' ) . '</p>'; $message .= '<p>' . __( 'The site administrator has been notified. You will receive a link to download your export via email when they fulfill your request.' ) . '</p>'; } elseif ( 'remove_personal_data' === $request->action_name ) { $message = '<p class="success">' . __( 'Thanks for confirming your erasure request.' ) . '</p>'; $message .= '<p>' . __( 'The site administrator has been notified. You will receive an email confirmation when they erase your data.' ) . '</p>'; } } /* * Filters the message displayed to a user when they confirm a data request. * * @since 4.9.6 * * @param string $message The message to the user. * @param int $request_id The ID of the request being confirmed. / $message = apply_filters( 'user_request_action_confirmed_message', $message, $request_id ); return $message; } /* * Create and log a user request to perform a specific action. * * Requests are stored inside a post type named `user_request` since they can apply to both * users on the site, or guests without a user account. * * @since 4.9.6 * * @param string $email_address User email address. This can be the address of a registered or non-registered user. * @param string $action_name Name of the action that is being confirmed. Required. * @param array $request_data Misc data you want to send with the verification request and pass to the actions once the request is confirmed. * @return int\|WP_Error Returns the request ID if successful, or a WP_Error object on failure. / function wp_create_user_request( $email_address = '', $action_name = '', $request_data = array() ) { $email_address = sanitize_email( $email_address ); $action_name = sanitize_key( $action_name ); if ( ! is_email( $email_address ) ) { return new WP_Error( 'invalid_email', __( 'Invalid email address.' ) ); } if ( ! $action_name ) { return new WP_Error( 'invalid_action', __( 'Invalid action name.' ) ); } $user = get_user_by( 'email', $email_address ); $user_id = $user && ! is_wp_error( $user ) ? $user->ID : 0; // Check for duplicates. $requests_query = new WP_Query( array( 'post_type' => 'user_request', 'post_name__in' => array( $action_name ), // Action name stored in post_name column. 'title' => $email_address, // Email address stored in post_title column. 'post_status' => 'any', 'fields' => 'ids', ) ); if ( $requests_query->found_posts ) { return new WP_Error( 'duplicate_request', __( 'A request for this email address already exists.' ) ); } $request_id = wp_insert_post( array( 'post_author' => $user_id, 'post_name' => $action_name, 'post_title' => $email_address, 'post_content' => wp_json_encode( $request_data ), 'post_status' => 'request-pending', 'post_type' => 'user_request', 'post_date' => current_time( 'mysql', false ), 'post_date_gmt' => current_time( 'mysql', true ), ), true ); return $request_id; } /* * Get action description from the name and return a string. * * @since 4.9.6 * * @param string $action_name Action name of the request. * @return string Human readable action name. / function wp_user_request_action_description( $action_name ) { switch ( $action_name ) { case 'export_personal_data': $description = __( 'Export Personal Data' ); break; case 'remove_personal_data': $description = __( 'Erase Personal Data' ); break; default: / translators: %s: action name / $description = sprintf( __( 'Confirm the "%s" action' ), $action_name ); break; } /* * Filters the user action description. * * @since 4.9.6 * * @param string $description The default description. * @param string $action_name The name of the request. / return apply_filters( 'user_request_action_description', $description, $action_name ); } /* * Send a confirmation request email to confirm an action. * * If the request is not already pending, it will be updated. * * @since 4.9.6 * * @param string $request_id ID of the request created via wp_create_user_request(). * @return bool\|WP_Error True on success, `WP_Error` on failure. / function wp_send_user_request( $request_id ) { $request_id = absint( $request_id ); $request = wp_get_user_request_data( $request_id ); if ( ! $request ) { return new WP_Error( 'invalid_request', __( 'Invalid user request.' ) ); } // Localize message content for user; fallback to site default for visitors. if ( ! empty( $request->user_id ) ) { $locale = get_user_locale( $request->user_id ); } else { $locale = get_locale(); } $switched_locale = switch_to_locale( $locale ); $email_data = array( 'request' => $request, 'email' => $request->email, 'description' => wp_user_request_action_description( $request->action_name ), 'confirm_url' => add_query_arg( array( 'action' => 'confirmaction', 'request_id' => $request_id, 'confirm_key' => wp_generate_user_request_key( $request_id ), ), wp_login_url() ), 'sitename' => wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ), 'siteurl' => home_url(), ); / translators: Do not translate DESCRIPTION, CONFIRM_URL, SITENAME, SITEURL: those are placeholders. / $email_text = __( 'Howdy, A request has been made to perform the following action on your account: ###DESCRIPTION### To confirm this, please click on the following link: ###CONFIRM_URL### You can safely ignore and delete this email if you do not want to take this action. Regards, All at ###SITENAME### ###SITEURL###' ); /* * Filters the text of the email sent when an account action is attempted. * * The following strings have a special meaning and will get replaced dynamically: * * ###DESCRIPTION### Description of the action being performed so the user knows what the email is for. * ###CONFIRM_URL### The link to click on to confirm the account action. * ###SITENAME### The name of the site. * ###SITEURL### The URL to the site. * * @since 4.9.6 * * @param string $email_text Text in the email. * @param array $email_data { * Data relating to the account action email. * * @type WP_User_Request $request User request object. * @type string $email The email address this is being sent to. * @type string $description Description of the action being performed so the user knows what the email is for. * @type string $confirm_url The link to click on to confirm the account action. * @type string $sitename The site name sending the mail. * @type string $siteurl The site URL sending the mail. * } / $content = apply_filters( 'user_request_action_email_content', $email_text, $email_data ); $content = str_replace( '###DESCRIPTION###', $email_data['description'], $content ); $content = str_replace( '###CONFIRM_URL###', esc_url_raw( $email_data['confirm_url'] ), $content ); $content = str_replace( '###EMAIL###', $email_data['email'], $content ); $content = str_replace( '###SITENAME###', $email_data['sitename'], $content ); $content = str_replace( '###SITEURL###', esc_url_raw( $email_data['siteurl'] ), $content ); / translators: Privacy data request subject. 1: Site name, 2: Name of the action / $subject = sprintf( __( '[%1$s] Confirm Action: %2$s' ), $email_data['sitename'], $email_data['description'] ); /* * Filters the subject of the email sent when an account action is attempted. * * @since 4.9.6 * * @param string $subject The email subject. * @param string $sitename The name of the site. * @param array $email_data { * Data relating to the account action email. * * @type WP_User_Request $request User request object. * @type string $email The email address this is being sent to. * @type string $description Description of the action being performed so the user knows what the email is for. * @type string $confirm_url The link to click on to confirm the account action. * @type string $sitename The site name sending the mail. * @type string $siteurl The site URL sending the mail. * } / $subject = apply_filters( 'user_request_action_email_subject', $subject, $email_data['sitename'], $email_data ); $email_sent = wp_mail( $email_data['email'], $subject, $content ); if ( $switched_locale ) { restore_previous_locale(); } if ( ! $email_sent ) { return new WP_Error( 'privacy_email_error', __( 'Unable to send personal data export confirmation email.' ) ); } return true; } /* * Returns a confirmation key for a user action and stores the hashed version for future comparison. * * @since 4.9.6 * * @param int $request_id Request ID. * @return string Confirmation key. / function wp_generate_user_request_key( $request_id ) { global $wp_hasher; // Generate something random for a confirmation key. $key = wp_generate_password( 20, false ); // Return the key, hashed. if ( empty( $wp_hasher ) ) { require_once ABSPATH . WPINC . '/class-phpass.php'; $wp_hasher = new PasswordHash( 8, true ); } wp_update_post( array( 'ID' => $request_id, 'post_status' => 'request-pending', 'post_password' => $wp_hasher->HashPassword( $key ), ) ); return $key; } /* * Validate a user request by comparing the key with the request's key. * * @since 4.9.6 * * @param string $request_id ID of the request being confirmed. * @param string $key Provided key to validate. * @return bool\|WP_Error WP_Error on failure, true on success. / function wp_validate_user_request_key( $request_id, $key ) { global $wp_hasher; $request_id = absint( $request_id ); $request = wp_get_user_request_data( $request_id ); if ( ! $request ) { return new WP_Error( 'invalid_request', __( 'Invalid request.' ) ); } if ( ! in_array( $request->status, array( 'request-pending', 'request-failed' ), true ) ) { return new WP_Error( 'expired_link', __( 'This link has expired.' ) ); } if ( empty( $key ) ) { return new WP_Error( 'invalid_key', __( 'Invalid key' ) ); } if ( empty( $wp_hasher ) ) { require_once ABSPATH . WPINC . '/class-phpass.php'; $wp_hasher = new PasswordHash( 8, true ); } $key_request_time = $request->modified_timestamp; $saved_key = $request->confirm_key; if ( ! $saved_key ) { return new WP_Error( 'invalid_key', __( 'Invalid key' ) ); } if ( ! $key_request_time ) { return new WP_Error( 'invalid_key', __( 'Invalid action' ) ); } /* * Filters the expiration time of confirm keys. * * @since 4.9.6 * * @param int $expiration The expiration time in seconds. / $expiration_duration = (int) apply_filters( 'user_request_key_expiration', DAY_IN_SECONDS ); $expiration_time = $key_request_time + $expiration_duration; if ( ! $wp_hasher->CheckPassword( $key, $saved_key ) ) { return new WP_Error( 'invalid_key', __( 'Invalid key' ) ); } if ( ! $expiration_time \|\| time() > $expiration_time ) { return new WP_Error( 'expired_key', __( 'The confirmation email has expired.' ) ); } return true; } /* * Return data about a user request. * * @since 4.9.6 * * @param int $request_id Request ID to get data about. * @return WP_User_Request\|false / function wp_get_user_request_data( $request_id ) { $request_id = absint( $request_id ); $post = get_post( $request_id ); if ( ! $post \|\| 'user_request' !== $post->post_type ) { return false; } return new WP_User_Request( $post ); } /* * WP_User_Request class. * * Represents user request data loaded from a WP_Post object. * * @since 4.9.6 / final class WP_User_Request { /* * Request ID. * * @var int / public $ID = 0; /* * User ID. * * @var int / public $user_id = 0; /* * User email. * * @var int / public $email = ''; /* * Action name. * * @var string / public $action_name = ''; /* * Current status. * * @var string / public $status = ''; /* * Timestamp this request was created. * * @var int\|null / public $created_timestamp = null; /* * Timestamp this request was last modified. * * @var int\|null / public $modified_timestamp = null; /* * Timestamp this request was confirmed. * * @var int / public $confirmed_timestamp = null; /* * Timestamp this request was completed. * * @var int / public $completed_timestamp = null; /* * Misc data assigned to this request. * * @var array / public $request_data = array(); /* * Key used to confirm this request. * * @var string / public $confirm_key = ''; /* * Constructor. * * @since 4.9.6 * * @param WP_Post\|object $post Post object. */ public function __construct( $post ) { $this->ID = $post->ID; $this->user_id = $post->post_author; $this->email = $post->post_title; $this->action_name = $post->post_name; $this->status = $post->post_status; $this->created_timestamp = strtotime( $post->post_date_gmt ); $this->modified_timestamp = strtotime( $post->post_modified_gmt ); $this->confirmed_timestamp = (int) get_post_meta( $post->ID, '_wp_user_request_confirmed_timestamp', true ); $this->completed_timestamp = (int) get_post_meta( $post->ID, '_wp_user_request_completed_timestamp', true ); $this->request_data = json_decode( $post->post_content, true ); $this->confirm_key = $post->post_password; } } Back

Edit File : user.php | Size : 120.69 KB

<?php
/**
 * Core User API
 *
 * @package WordPress
 * @subpackage Users
 */

/**
 * Authenticates and logs a user in with 'remember' capability.
 *
 * The credentials is an array that has 'user_login', 'user_password', and
 * 'remember' indices. If the credentials is not given, then the log in form
 * will be assumed and used if set.
 *
 * The various authentication cookies will be set by this function and will be
 * set for a longer period depending on if the 'remember' credential is set to
 * true.
 *
 * Note: wp_signon() doesn't handle setting the current user. This means that if the
 * function is called before the {@see 'init'} hook is fired, is_user_logged_in() will
 * evaluate as false until that point. If is_user_logged_in() is needed in conjunction
 * with wp_signon(), wp_set_current_user() should be called explicitly.
 *
 * @since 2.5.0
 *
 * @global string $auth_secure_cookie
 *
 * @param array       $credentials   Optional. User info in order to sign on.
 * @param string|bool $secure_cookie Optional. Whether to use secure cookie.
 * @return WP_User|WP_Error WP_User on success, WP_Error on failure.
 */
function wp_signon( $credentials = array(), $secure_cookie = '' ) {
	if ( empty( $credentials ) ) {
		$credentials = array(); // Back-compat for plugins passing an empty string.

if ( ! empty( $_POST['log'] ) ) {
			$credentials['user_login'] = $_POST['log'];
		}
		if ( ! empty( $_POST['pwd'] ) ) {
			$credentials['user_password'] = $_POST['pwd'];
		}
		if ( ! empty( $_POST['rememberme'] ) ) {
			$credentials['remember'] = $_POST['rememberme'];
		}
	}

if ( ! empty( $credentials['remember'] ) ) {
		$credentials['remember'] = true;
	} else {
		$credentials['remember'] = false;
	}

/**
	 * Fires before the user is authenticated.
	 *
	 * The variables passed to the callbacks are passed by reference,
	 * and can be modified by callback functions.
	 *
	 * @since 1.5.1
	 *
	 * @todo Decide whether to deprecate the wp_authenticate action.
	 *
	 * @param string $user_login    Username (passed by reference).
	 * @param string $user_password User password (passed by reference).
	 */
	do_action_ref_array( 'wp_authenticate', array( &$credentials['user_login'], &$credentials['user_password'] ) );

if ( '' === $secure_cookie ) {
		$secure_cookie = is_ssl();
	}

/**
	 * Filters whether to use a secure sign-on cookie.
	 *
	 * @since 3.1.0
	 *
	 * @param bool  $secure_cookie Whether to use a secure sign-on cookie.
	 * @param array $credentials {
	 *     Array of entered sign-on data.
	 *
	 *     @type string $user_login    Username.
	 *     @type string $user_password Password entered.
	 *     @type bool   $remember      Whether to 'remember' the user. Increases the time
	 *                                 that the cookie will be kept. Default false.
	 * }
	 */
	$secure_cookie = apply_filters( 'secure_signon_cookie', $secure_cookie, $credentials );

global $auth_secure_cookie; // XXX ugly hack to pass this to wp_authenticate_cookie
	$auth_secure_cookie = $secure_cookie;

add_filter( 'authenticate', 'wp_authenticate_cookie', 30, 3 );

$user = wp_authenticate( $credentials['user_login'], $credentials['user_password'] );

if ( is_wp_error( $user ) ) {
		if ( $user->get_error_codes() == array( 'empty_username', 'empty_password' ) ) {
			$user = new WP_Error( '', '' );
		}

return $user;
	}

wp_set_auth_cookie( $user->ID, $credentials['remember'], $secure_cookie );
	/**
	 * Fires after the user has successfully logged in.
	 *
	 * @since 1.5.0
	 *
	 * @param string  $user_login Username.
	 * @param WP_User $user       WP_User object of the logged-in user.
	 */
	do_action( 'wp_login', $user->user_login, $user );
	return $user;
}

/**
 * Authenticate a user, confirming the username and password are valid.
 *
 * @since 2.8.0
 *
 * @param WP_User|WP_Error|null $user     WP_User or WP_Error object from a previous callback. Default null.
 * @param string                $username Username for authentication.
 * @param string                $password Password for authentication.
 * @return WP_User|WP_Error WP_User on success, WP_Error on failure.
 */
function wp_authenticate_username_password( $user, $username, $password ) {
	if ( $user instanceof WP_User ) {
		return $user;
	}

if ( empty( $username ) || empty( $password ) ) {
		if ( is_wp_error( $user ) ) {
			return $user;
		}

$error = new WP_Error();

if ( empty( $username ) ) {
			$error->add( 'empty_username', __( 'ERROR: The username field is empty.' ) );
		}

if ( empty( $password ) ) {
			$error->add( 'empty_password', __( 'ERROR: The password field is empty.' ) );
		}

return $error;
	}

$user = get_user_by( 'login', $username );

if ( ! $user ) {
		return new WP_Error(
			'invalid_username',
			__( 'ERROR: Invalid username.' ) .
			' <a href="' . wp_lostpassword_url() . '">' .
			__( 'Lost your password?' ) .
			'</a>'
		);
	}

/**
	 * Filters whether the given user can be authenticated with the provided $password.
	 *
	 * @since 2.5.0
	 *
	 * @param WP_User|WP_Error $user     WP_User or WP_Error object if a previous
	 *                                   callback failed authentication.
	 * @param string           $password Password to check against the user.
	 */
	$user = apply_filters( 'wp_authenticate_user', $user, $password );
	if ( is_wp_error( $user ) ) {
		return $user;
	}

if ( ! wp_check_password( $password, $user->user_pass, $user->ID ) ) {
		return new WP_Error(
			'incorrect_password',
			sprintf(
				/* translators: %s: user name */
				__( 'ERROR: The password you entered for the username %s is incorrect.' ),
				'' . $username . ''
			) .
			' <a href="' . wp_lostpassword_url() . '">' .
			__( 'Lost your password?' ) .
			'</a>'
		);
	}

return $user;
}

/**
 * Authenticates a user using the email and password.
 *
 * @since 4.5.0
 *
 * @param WP_User|WP_Error|null $user     WP_User or WP_Error object if a previous
 *                                        callback failed authentication.
 * @param string                $email    Email address for authentication.
 * @param string                $password Password for authentication.
 * @return WP_User|WP_Error WP_User on success, WP_Error on failure.
 */
function wp_authenticate_email_password( $user, $email, $password ) {
	if ( $user instanceof WP_User ) {
		return $user;
	}

if ( empty( $email ) || empty( $password ) ) {
		if ( is_wp_error( $user ) ) {
			return $user;
		}

$error = new WP_Error();

if ( empty( $email ) ) {
			$error->add( 'empty_username', __( 'ERROR: The email field is empty.' ) ); // Uses 'empty_username' for back-compat with wp_signon()
		}

if ( empty( $password ) ) {
			$error->add( 'empty_password', __( 'ERROR: The password field is empty.' ) );
		}

return $error;
	}

if ( ! is_email( $email ) ) {
		return $user;
	}

$user = get_user_by( 'email', $email );

if ( ! $user ) {
		return new WP_Error(
			'invalid_email',
			__( 'ERROR: Invalid email address.' ) .
			' <a href="' . wp_lostpassword_url() . '">' .
			__( 'Lost your password?' ) .
			'</a>'
		);
	}

/** This filter is documented in site-inc/user.php */
	$user = apply_filters( 'wp_authenticate_user', $user, $password );

if ( is_wp_error( $user ) ) {
		return $user;
	}

if ( ! wp_check_password( $password, $user->user_pass, $user->ID ) ) {
		return new WP_Error(
			'incorrect_password',
			sprintf(
				/* translators: %s: email address */
				__( 'ERROR: The password you entered for the email address %s is incorrect.' ),
				'' . $email . ''
			) .
			' <a href="' . wp_lostpassword_url() . '">' .
			__( 'Lost your password?' ) .
			'</a>'
		);
	}

return $user;
}

/**
 * Authenticate the user using the WordPress auth cookie.
 *
 * @since 2.8.0
 *
 * @global string $auth_secure_cookie
 *
 * @param WP_User|WP_Error|null $user     WP_User or WP_Error object from a previous callback. Default null.
 * @param string                $username Username. If not empty, cancels the cookie authentication.
 * @param string                $password Password. If not empty, cancels the cookie authentication.
 * @return WP_User|WP_Error WP_User on success, WP_Error on failure.
 */
function wp_authenticate_cookie( $user, $username, $password ) {
	if ( $user instanceof WP_User ) {
		return $user;
	}

if ( empty( $username ) && empty( $password ) ) {
		$user_id = wp_validate_auth_cookie();
		if ( $user_id ) {
			return new WP_User( $user_id );
		}

global $auth_secure_cookie;

if ( $auth_secure_cookie ) {
			$auth_cookie = SECURE_AUTH_COOKIE;
		} else {
			$auth_cookie = AUTH_COOKIE;
		}

if ( ! empty( $_COOKIE[ $auth_cookie ] ) ) {
			return new WP_Error( 'expired_session', __( 'Please log in again.' ) );
		}

// If the cookie is not set, be silent.
	}

return $user;
}

/**
 * For Multisite blogs, check if the authenticated user has been marked as a
 * spammer, or if the user's primary blog has been marked as spam.
 *
 * @since 3.7.0
 *
 * @param WP_User|WP_Error|null $user WP_User or WP_Error object from a previous callback. Default null.
 * @return WP_User|WP_Error WP_User on success, WP_Error if the user is considered a spammer.
 */
function wp_authenticate_spam_check( $user ) {
	if ( $user instanceof WP_User && is_multisite() ) {
		/**
		 * Filters whether the user has been marked as a spammer.
		 *
		 * @since 3.7.0
		 *
		 * @param bool    $spammed Whether the user is considered a spammer.
		 * @param WP_User $user    User to check against.
		 */
		$spammed = apply_filters( 'check_is_user_spammed', is_user_spammy( $user ), $user );

if ( $spammed ) {
			return new WP_Error( 'spammer_account', __( 'ERROR: Your account has been marked as a spammer.' ) );
		}
	}
	return $user;
}

/**
 * Validates the logged-in cookie.
 *
 * Checks the logged-in cookie if the previous auth cookie could not be
 * validated and parsed.
 *
 * This is a callback for the {@see 'determine_current_user'} filter, rather than API.
 *
 * @since 3.9.0
 *
 * @param int|bool $user_id The user ID (or false) as received from the
 *                       determine_current_user filter.
 * @return int|false User ID if validated, false otherwise. If a user ID from
 *                   an earlier filter callback is received, that value is returned.
 */
function wp_validate_logged_in_cookie( $user_id ) {
	if ( $user_id ) {
		return $user_id;
	}

if ( is_blog_admin() || is_network_admin() || empty( $_COOKIE[ LOGGED_IN_COOKIE ] ) ) {
		return false;
	}

return wp_validate_auth_cookie( $_COOKIE[ LOGGED_IN_COOKIE ], 'logged_in' );
}

/**
 * Number of posts user has written.
 *
 * @since 3.0.0
 * @since 4.1.0 Added `$post_type` argument.
 * @since 4.3.0 Added `$public_only` argument. Added the ability to pass an array
 *              of post types to `$post_type`.
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int          $userid      User ID.
 * @param array|string $post_type   Optional. Single post type or array of post types to count the number of posts for. Default 'post'.
 * @param bool         $public_only Optional. Whether to only return counts for public posts. Default false.
 * @return string Number of posts the user has written in this post type.
 */
function count_user_posts( $userid, $post_type = 'post', $public_only = false ) {
	global $wpdb;

$where = get_posts_by_author_sql( $post_type, true, $userid, $public_only );

$count = $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->posts $where" );

/**
	 * Filters the number of posts a user has written.
	 *
	 * @since 2.7.0
	 * @since 4.1.0 Added `$post_type` argument.
	 * @since 4.3.1 Added `$public_only` argument.
	 *
	 * @param int          $count       The user's post count.
	 * @param int          $userid      User ID.
	 * @param string|array $post_type   Single post type or array of post types to count the number of posts for.
	 * @param bool         $public_only Whether to limit counted posts to public posts.
	 */
	return apply_filters( 'get_usernumposts', $count, $userid, $post_type, $public_only );
}

/**
 * Number of posts written by a list of users.
 *
 * @since 3.0.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param array        $users       Array of user IDs.
 * @param string|array $post_type   Optional. Single post type or array of post types to check. Defaults to 'post'.
 * @param bool         $public_only Optional. Only return counts for public posts.  Defaults to false.
 * @return array Amount of posts each user has written.
 */
function count_many_users_posts( $users, $post_type = 'post', $public_only = false ) {
	global $wpdb;

$count = array();
	if ( empty( $users ) || ! is_array( $users ) ) {
		return $count;
	}

$userlist = implode( ',', array_map( 'absint', $users ) );
	$where    = get_posts_by_author_sql( $post_type, true, null, $public_only );

$result = $wpdb->get_results( "SELECT post_author, COUNT(*) FROM $wpdb->posts $where AND post_author IN ($userlist) GROUP BY post_author", ARRAY_N );
	foreach ( $result as $row ) {
		$count[ $row[0] ] = $row[1];
	}

foreach ( $users as $id ) {
		if ( ! isset( $count[ $id ] ) ) {
			$count[ $id ] = 0;
		}
	}

return $count;
}

//
// User option functions
//

/**
 * Get the current user's ID
 *
 * @since MU (3.0.0)
 *
 * @return int The current user's ID, or 0 if no user is logged in.
 */
function get_current_user_id() {
	if ( ! function_exists( 'wp_get_current_user' ) ) {
		return 0;
	}
	$user = wp_get_current_user();
	return ( isset( $user->ID ) ? (int) $user->ID : 0 );
}

/**
 * Retrieve user option that can be either per Site or per Network.
 *
 * If the user ID is not given, then the current user will be used instead. If
 * the user ID is given, then the user data will be retrieved. The filter for
 * the result, will also pass the original option name and finally the user data
 * object as the third parameter.
 *
 * The option will first check for the per site name and then the per Network name.
 *
 * @since 2.0.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $option     User option name.
 * @param int    $user       Optional. User ID.
 * @param string $deprecated Use get_option() to check for an option in the options table.
 * @return mixed User option value on success, false on failure.
 */
function get_user_option( $option, $user = 0, $deprecated = '' ) {
	global $wpdb;

if ( ! empty( $deprecated ) ) {
		_deprecated_argument( __FUNCTION__, '3.0.0' );
	}

if ( empty( $user ) ) {
		$user = get_current_user_id();
	}

if ( ! $user = get_userdata( $user ) ) {
		return false;
	}

$prefix = $wpdb->get_blog_prefix();
	if ( $user->has_prop( $prefix . $option ) ) { // Blog specific
		$result = $user->get( $prefix . $option );
	} elseif ( $user->has_prop( $option ) ) { // User specific and cross-blog
		$result = $user->get( $option );
	} else {
		$result = false;
	}

/**
	 * Filters a specific user option value.
	 *
	 * The dynamic portion of the hook name, `$option`, refers to the user option name.
	 *
	 * @since 2.5.0
	 *
	 * @param mixed   $result Value for the user's option.
	 * @param string  $option Name of the option being retrieved.
	 * @param WP_User $user   WP_User object of the user whose option is being retrieved.
	 */
	return apply_filters( "get_user_option_{$option}", $result, $option, $user );
}

/**
 * Update user option with global blog capability.
 *
 * User options are just like user metadata except that they have support for
 * global blog options. If the 'global' parameter is false, which it is by default
 * it will prepend the WordPress table prefix to the option name.
 *
 * Deletes the user option if $newvalue is empty.
 *
 * @since 2.0.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int    $user_id     User ID.
 * @param string $option_name User option name.
 * @param mixed  $newvalue    User option value.
 * @param bool   $global      Optional. Whether option name is global or blog specific.
 *                            Default false (blog specific).
 * @return int|bool User meta ID if the option didn't exist, true on successful update,
 *                  false on failure.
 */
function update_user_option( $user_id, $option_name, $newvalue, $global = false ) {
	global $wpdb;

if ( ! $global ) {
		$option_name = $wpdb->get_blog_prefix() . $option_name;
	}

return update_user_meta( $user_id, $option_name, $newvalue );
}

/**
 * Delete user option with global blog capability.
 *
 * User options are just like user metadata except that they have support for
 * global blog options. If the 'global' parameter is false, which it is by default
 * it will prepend the WordPress table prefix to the option name.
 *
 * @since 3.0.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int    $user_id     User ID
 * @param string $option_name User option name.
 * @param bool   $global      Optional. Whether option name is global or blog specific.
 *                            Default false (blog specific).
 * @return bool True on success, false on failure.
 */
function delete_user_option( $user_id, $option_name, $global = false ) {
	global $wpdb;

if ( ! $global ) {
		$option_name = $wpdb->get_blog_prefix() . $option_name;
	}
	return delete_user_meta( $user_id, $option_name );
}

/**
 * Retrieve list of users matching criteria.
 *
 * @since 3.1.0
 *
 * @see WP_User_Query
 *
 * @param array $args Optional. Arguments to retrieve users. See WP_User_Query::prepare_query().
 *                    for more information on accepted arguments.
 * @return array List of users.
 */
function get_users( $args = array() ) {

$args                = wp_parse_args( $args );
	$args['count_total'] = false;

$user_search = new WP_User_Query( $args );

return (array) $user_search->get_results();
}

/**
 * Get the sites a user belongs to.
 *
 * @since 3.0.0
 * @since 4.7.0 Converted to use `get_sites()`.
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int  $user_id User ID
 * @param bool $all     Whether to retrieve all sites, or only sites that are not
 *                      marked as deleted, archived, or spam.
 * @return array A list of the user's sites. An empty array if the user doesn't exist
 *               or belongs to no sites.
 */
function get_blogs_of_user( $user_id, $all = false ) {
	global $wpdb;

$user_id = (int) $user_id;

// Logged out users can't have sites
	if ( empty( $user_id ) ) {
		return array();
	}

/**
	 * Filters the list of a user's sites before it is populated.
	 *
	 * Passing a non-null value to the filter will effectively short circuit
	 * get_blogs_of_user(), returning that value instead.
	 *
	 * @since 4.6.0
	 *
	 * @param null|array $sites   An array of site objects of which the user is a member.
	 * @param int        $user_id User ID.
	 * @param bool       $all     Whether the returned array should contain all sites, including
	 *                            those marked 'deleted', 'archived', or 'spam'. Default false.
	 */
	$sites = apply_filters( 'pre_get_blogs_of_user', null, $user_id, $all );

if ( null !== $sites ) {
		return $sites;
	}

$keys = get_user_meta( $user_id );
	if ( empty( $keys ) ) {
		return array();
	}

if ( ! is_multisite() ) {
		$site_id                        = get_current_blog_id();
		$sites                          = array( $site_id => new stdClass );
		$sites[ $site_id ]->userblog_id = $site_id;
		$sites[ $site_id ]->blogname    = get_option( 'blogname' );
		$sites[ $site_id ]->domain      = '';
		$sites[ $site_id ]->path        = '';
		$sites[ $site_id ]->site_id     = 1;
		$sites[ $site_id ]->siteurl     = get_option( 'siteurl' );
		$sites[ $site_id ]->archived    = 0;
		$sites[ $site_id ]->spam        = 0;
		$sites[ $site_id ]->deleted     = 0;
		return $sites;
	}

$site_ids = array();

if ( isset( $keys[ $wpdb->base_prefix . 'capabilities' ] ) && defined( 'MULTISITE' ) ) {
		$site_ids[] = 1;
		unset( $keys[ $wpdb->base_prefix . 'capabilities' ] );
	}

$keys = array_keys( $keys );

foreach ( $keys as $key ) {
		if ( 'capabilities' !== substr( $key, -12 ) ) {
			continue;
		}
		if ( $wpdb->base_prefix && 0 !== strpos( $key, $wpdb->base_prefix ) ) {
			continue;
		}
		$site_id = str_replace( array( $wpdb->base_prefix, '_capabilities' ), '', $key );
		if ( ! is_numeric( $site_id ) ) {
			continue;
		}

$site_ids[] = (int) $site_id;
	}

$sites = array();

if ( ! empty( $site_ids ) ) {
		$args = array(
			'number'                 => '',
			'site__in'               => $site_ids,
			'update_site_meta_cache' => false,
		);
		if ( ! $all ) {
			$args['archived'] = 0;
			$args['spam']     = 0;
			$args['deleted']  = 0;
		}

$_sites = get_sites( $args );

foreach ( $_sites as $site ) {
			$sites[ $site->id ] = (object) array(
				'userblog_id' => $site->id,
				'blogname'    => $site->blogname,
				'domain'      => $site->domain,
				'path'        => $site->path,
				'site_id'     => $site->network_id,
				'siteurl'     => $site->siteurl,
				'archived'    => $site->archived,
				'mature'      => $site->mature,
				'spam'        => $site->spam,
				'deleted'     => $site->deleted,
			);
		}
	}

/**
	 * Filters the list of sites a user belongs to.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param array $sites   An array of site objects belonging to the user.
	 * @param int   $user_id User ID.
	 * @param bool  $all     Whether the returned sites array should contain all sites, including
	 *                       those marked 'deleted', 'archived', or 'spam'. Default false.
	 */
	return apply_filters( 'get_blogs_of_user', $sites, $user_id, $all );
}

/**
 * Find out whether a user is a member of a given blog.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int $user_id Optional. The unique ID of the user. Defaults to the current user.
 * @param int $blog_id Optional. ID of the blog to check. Defaults to the current site.
 * @return bool
 */
function is_user_member_of_blog( $user_id = 0, $blog_id = 0 ) {
	global $wpdb;

$user_id = (int) $user_id;
	$blog_id = (int) $blog_id;

if ( empty( $user_id ) ) {
		$user_id = get_current_user_id();
	}

// Technically not needed, but does save calls to get_site and get_user_meta
	// in the event that the function is called when a user isn't logged in
	if ( empty( $user_id ) ) {
		return false;
	} else {
		$user = get_userdata( $user_id );
		if ( ! $user instanceof WP_User ) {
			return false;
		}
	}

if ( ! is_multisite() ) {
		return true;
	}

if ( empty( $blog_id ) ) {
		$blog_id = get_current_blog_id();
	}

$blog = get_site( $blog_id );

if ( ! $blog || ! isset( $blog->domain ) || $blog->archived || $blog->spam || $blog->deleted ) {
		return false;
	}

$keys = get_user_meta( $user_id );
	if ( empty( $keys ) ) {
		return false;
	}

// no underscore before capabilities in $base_capabilities_key
	$base_capabilities_key = $wpdb->base_prefix . 'capabilities';
	$site_capabilities_key = $wpdb->base_prefix . $blog_id . '_capabilities';

if ( isset( $keys[ $base_capabilities_key ] ) && $blog_id == 1 ) {
		return true;
	}

if ( isset( $keys[ $site_capabilities_key ] ) ) {
		return true;
	}

return false;
}

/**
 * Adds meta data to a user.
 *
 * @since 3.0.0
 *
 * @param int    $user_id    User ID.
 * @param string $meta_key   Metadata name.
 * @param mixed  $meta_value Metadata value.
 * @param bool   $unique     Optional. Whether the same key should not be added. Default false.
 * @return int|false Meta ID on success, false on failure.
 */
function add_user_meta( $user_id, $meta_key, $meta_value, $unique = false ) {
	return add_metadata( 'user', $user_id, $meta_key, $meta_value, $unique );
}

/**
 * Remove metadata matching criteria from a user.
 *
 * You can match based on the key, or key and value. Removing based on key and
 * value, will keep from removing duplicate metadata with the same key. It also
 * allows removing all metadata matching key, if needed.
 *
 * @since 3.0.0
 * @link https://sitepad.com/docs/Function_Reference/delete_user_meta
 *
 * @param int    $user_id    User ID
 * @param string $meta_key   Metadata name.
 * @param mixed  $meta_value Optional. Metadata value.
 * @return bool True on success, false on failure.
 */
function delete_user_meta( $user_id, $meta_key, $meta_value = '' ) {
	return delete_metadata( 'user', $user_id, $meta_key, $meta_value );
}

/**
 * Retrieve user meta field for a user.
 *
 * @since 3.0.0
 * @link https://sitepad.com/docs/Function_Reference/get_user_meta
 *
 * @param int    $user_id User ID.
 * @param string $key     Optional. The meta key to retrieve. By default, returns data for all keys.
 * @param bool   $single  Whether to return a single value.
 * @return mixed Will be an array if $single is false. Will be value of meta data field if $single is true.
 */
function get_user_meta( $user_id, $key = '', $single = false ) {
	return get_metadata( 'user', $user_id, $key, $single );
}

/**
 * Update user meta field based on user ID.
 *
 * Use the $prev_value parameter to differentiate between meta fields with the
 * same key and user ID.
 *
 * If the meta field for the user does not exist, it will be added.
 *
 * @since 3.0.0
 * @link https://sitepad.com/docs/Function_Reference/update_user_meta
 *
 * @param int    $user_id    User ID.
 * @param string $meta_key   Metadata key.
 * @param mixed  $meta_value Metadata value.
 * @param mixed  $prev_value Optional. Previous value to check before removing.
 * @return int|bool Meta ID if the key didn't exist, true on successful update, false on failure.
 */
function update_user_meta( $user_id, $meta_key, $meta_value, $prev_value = '' ) {
	return update_metadata( 'user', $user_id, $meta_key, $meta_value, $prev_value );
}

/**
 * Count number of users who have each of the user roles.
 *
 * Assumes there are neither duplicated nor orphaned capabilities meta_values.
 * Assumes role names are unique phrases. Same assumption made by WP_User_Query::prepare_query()
 * Using $strategy = 'time' this is CPU-intensive and should handle around 10^7 users.
 * Using $strategy = 'memory' this is memory-intensive and should handle around 10^5 users, but see WP Bug #12257.
 *
 * @since 3.0.0
 * @since 4.4.0 The number of users with no role is now included in the `none` element.
 * @since 4.9.0 The `$site_id` parameter was added to support multisite.
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string   $strategy Optional. The computational strategy to use when counting the users.
 *                           Accepts either 'time' or 'memory'. Default 'time'.
 * @param int|null $site_id  Optional. The site ID to count users for. Defaults to the current site.
 * @return array Includes a grand total and an array of counts indexed by role strings.
 */
function count_users( $strategy = 'time', $site_id = null ) {
	global $wpdb;

// Initialize
	if ( ! $site_id ) {
		$site_id = get_current_blog_id();
	}

/**
	 * Filter the user count before queries are run. Return a non-null value to cause count_users()
	 * to return early.
	 *
	 * @since 5.1.0
	 *
	 * @param null|string $result   Default null.
	 * @param string      $strategy Optional. The computational strategy to use when counting the users.
	 *                              Accepts either 'time' or 'memory'. Default 'time'.
	 * @param int|null    $site_id  Optional. The site ID to count users for. Defaults to the current site.
	 */
	$pre = apply_filters( 'pre_count_users', null, $strategy, $site_id );

if ( null !== $pre ) {
		return $pre;
	}

$blog_prefix = $wpdb->get_blog_prefix( $site_id );
	$result      = array();

if ( 'time' == $strategy ) {
		if ( is_multisite() && $site_id != get_current_blog_id() ) {
			switch_to_blog( $site_id );
			$avail_roles = wp_roles()->get_names();
			restore_current_blog();
		} else {
			$avail_roles = wp_roles()->get_names();
		}

// Build a CPU-intensive query that will return concise information.
		$select_count = array();
		foreach ( $avail_roles as $this_role => $name ) {
			$select_count[] = $wpdb->prepare( 'COUNT(NULLIF(`meta_value` LIKE %s, false))', '%' . $wpdb->esc_like( '"' . $this_role . '"' ) . '%' );
		}
		$select_count[] = "COUNT(NULLIF(`meta_value` = 'a:0:{}', false))";
		$select_count   = implode( ', ', $select_count );

// Add the meta_value index to the selection list, then run the query.
		$row = $wpdb->get_row(
			"
			SELECT {$select_count}, COUNT(*)
			FROM {$wpdb->usermeta}
			INNER JOIN {$wpdb->users} ON user_id = ID
			WHERE meta_key = '{$blog_prefix}capabilities'
		",
			ARRAY_N
		);

// Run the previous loop again to associate results with role names.
		$col         = 0;
		$role_counts = array();
		foreach ( $avail_roles as $this_role => $name ) {
			$count = (int) $row[ $col++ ];
			if ( $count > 0 ) {
				$role_counts[ $this_role ] = $count;
			}
		}

$role_counts['none'] = (int) $row[ $col++ ];

// Get the meta_value index from the end of the result set.
		$total_users = (int) $row[ $col ];

$result['total_users'] = $total_users;
		$result['avail_roles'] =& $role_counts;
	} else {
		$avail_roles = array(
			'none' => 0,
		);

$users_of_blog = $wpdb->get_col(
			"
			SELECT meta_value
			FROM {$wpdb->usermeta}
			INNER JOIN {$wpdb->users} ON user_id = ID
			WHERE meta_key = '{$blog_prefix}capabilities'
		"
		);

foreach ( $users_of_blog as $caps_meta ) {
			$b_roles = maybe_unserialize( $caps_meta );
			if ( ! is_array( $b_roles ) ) {
				continue;
			}
			if ( empty( $b_roles ) ) {
				$avail_roles['none']++;
			}
			foreach ( $b_roles as $b_role => $val ) {
				if ( isset( $avail_roles[ $b_role ] ) ) {
					$avail_roles[ $b_role ]++;
				} else {
					$avail_roles[ $b_role ] = 1;
				}
			}
		}

$result['total_users'] = count( $users_of_blog );
		$result['avail_roles'] =& $avail_roles;
	}

return $result;
}

//
// Private helper functions
//

/**
 * Set up global user vars.
 *
 * Used by wp_set_current_user() for back compat. Might be deprecated in the future.
 *
 * @since 2.0.4
 *
 * @global string  $user_login    The user username for logging in
 * @global WP_User $userdata      User data.
 * @global int     $user_level    The level of the user
 * @global int     $user_ID       The ID of the user
 * @global string  $user_email    The email address of the user
 * @global string  $user_url      The url in the user's profile
 * @global string  $user_identity The display name of the user
 *
 * @param int $for_user_id Optional. User ID to set up global data. Default 0.
 */
function setup_userdata( $for_user_id = 0 ) {
	global $user_login, $userdata, $user_level, $user_ID, $user_email, $user_url, $user_identity;

if ( ! $for_user_id ) {
		$for_user_id = get_current_user_id();
	}
	$user = get_userdata( $for_user_id );

if ( ! $user ) {
		$user_ID    = 0;
		$user_level = 0;
		$userdata   = null;
		$user_login = $user_email = $user_url = $user_identity = '';
		return;
	}

$user_ID       = (int) $user->ID;
	$user_level    = (int) $user->user_level;
	$userdata      = $user;
	$user_login    = $user->user_login;
	$user_email    = $user->user_email;
	$user_url      = $user->user_url;
	$user_identity = $user->display_name;
}

/**
 * Create dropdown HTML content of users.
 *
 * The content can either be displayed, which it is by default or retrieved by
 * setting the 'echo' argument. The 'include' and 'exclude' arguments do not
 * need to be used; all users will be displayed in that case. Only one can be
 * used, either 'include' or 'exclude', but not both.
 *
 * The available arguments are as follows:
 *
 * @since 2.3.0
 * @since 4.5.0 Added the 'display_name_with_login' value for 'show'.
 * @since 4.7.0 Added the `$role`, `$role__in`, and `$role__not_in` parameters.
 *
 * @param array|string $args {
 *     Optional. Array or string of arguments to generate a drop-down of users.
 *     See WP_User_Query::prepare_query() for additional available arguments.
 *
 *     @type string       $show_option_all         Text to show as the drop-down default (all).
 *                                                 Default empty.
 *     @type string       $show_option_none        Text to show as the drop-down default when no
 *                                                 users were found. Default empty.
 *     @type int|string   $option_none_value       Value to use for $show_option_non when no users
 *                                                 were found. Default -1.
 *     @type string       $hide_if_only_one_author Whether to skip generating the drop-down
 *                                                 if only one user was found. Default empty.
 *     @type string       $orderby                 Field to order found users by. Accepts user fields.
 *                                                 Default 'display_name'.
 *     @type string       $order                   Whether to order users in ascending or descending
 *                                                 order. Accepts 'ASC' (ascending) or 'DESC' (descending).
 *                                                 Default 'ASC'.
 *     @type array|string $include                 Array or comma-separated list of user IDs to include.
 *                                                 Default empty.
 *     @type array|string $exclude                 Array or comma-separated list of user IDs to exclude.
 *                                                 Default empty.
 *     @type bool|int     $multi                   Whether to skip the ID attribute on the 'select' element.
 *                                                 Accepts 1|true or 0|false. Default 0|false.
 *     @type string       $show                    User data to display. If the selected item is empty
 *                                                 then the 'user_login' will be displayed in parentheses.
 *                                                 Accepts any user field, or 'display_name_with_login' to show
 *                                                 the display name with user_login in parentheses.
 *                                                 Default 'display_name'.
 *     @type int|bool     $echo                    Whether to echo or return the drop-down. Accepts 1|true (echo)
 *                                                 or 0|false (return). Default 1|true.
 *     @type int          $selected                Which user ID should be selected. Default 0.
 *     @type bool         $include_selected        Whether to always include the selected user ID in the drop-
 *                                                 down. Default false.
 *     @type string       $name                    Name attribute of select element. Default 'user'.
 *     @type string       $id                      ID attribute of the select element. Default is the value of $name.
 *     @type string       $class                   Class attribute of the select element. Default empty.
 *     @type int          $blog_id                 ID of blog (Multisite only). Default is ID of the current blog.
 *     @type string       $who                     Which type of users to query. Accepts only an empty string or
 *                                                 'authors'. Default empty.
 *     @type string|array $role                    An array or a comma-separated list of role names that users must
 *                                                 match to be included in results. Note that this is an inclusive
 *                                                 list: users must match *each* role. Default empty.
 *     @type array        $role__in                An array of role names. Matched users must have at least one of
 *                                                 these roles. Default empty array.
 *     @type array        $role__not_in            An array of role names to exclude. Users matching one or more of
 *                                                 these roles will not be included in results. Default empty array.
 * }
 * @return string String of HTML content.
 */
function wp_dropdown_users( $args = '' ) {
	$defaults = array(
		'show_option_all'         => '',
		'show_option_none'        => '',
		'hide_if_only_one_author' => '',
		'orderby'                 => 'display_name',
		'order'                   => 'ASC',
		'include'                 => '',
		'exclude'                 => '',
		'multi'                   => 0,
		'show'                    => 'display_name',
		'echo'                    => 1,
		'selected'                => 0,
		'name'                    => 'user',
		'class'                   => '',
		'id'                      => '',
		'blog_id'                 => get_current_blog_id(),
		'who'                     => '',
		'include_selected'        => false,
		'option_none_value'       => -1,
		'role'                    => '',
		'role__in'                => array(),
		'role__not_in'            => array(),
	);

$defaults['selected'] = is_author() ? get_query_var( 'author' ) : 0;

$r = wp_parse_args( $args, $defaults );

$query_args = wp_array_slice_assoc( $r, array( 'blog_id', 'include', 'exclude', 'orderby', 'order', 'who', 'role', 'role__in', 'role__not_in' ) );

$fields = array( 'ID', 'user_login' );

$show = ! empty( $r['show'] ) ? $r['show'] : 'display_name';
	if ( 'display_name_with_login' === $show ) {
		$fields[] = 'display_name';
	} else {
		$fields[] = $show;
	}

$query_args['fields'] = $fields;

$show_option_all   = $r['show_option_all'];
	$show_option_none  = $r['show_option_none'];
	$option_none_value = $r['option_none_value'];

/**
	 * Filters the query arguments for the list of users in the dropdown.
	 *
	 * @since 4.4.0
	 *
	 * @param array $query_args The query arguments for get_users().
	 * @param array $r          The arguments passed to wp_dropdown_users() combined with the defaults.
	 */
	$query_args = apply_filters( 'wp_dropdown_users_args', $query_args, $r );

$users = get_users( $query_args );

$output = '';
	if ( ! empty( $users ) && ( empty( $r['hide_if_only_one_author'] ) || count( $users ) > 1 ) ) {
		$name = esc_attr( $r['name'] );
		if ( $r['multi'] && ! $r['id'] ) {
			$id = '';
		} else {
			$id = $r['id'] ? " id='" . esc_attr( $r['id'] ) . "'" : " id='$name'";
		}
		$output = "<select name='{$name}'{$id} class='" . $r['class'] . "'>\n";

if ( $show_option_all ) {
			$output .= "\t<option value='0'>$show_option_all</option>\n";
		}

if ( $show_option_none ) {
			$_selected = selected( $option_none_value, $r['selected'], false );
			$output .= "\t<option value='" . esc_attr( $option_none_value ) . "'$_selected>$show_option_none</option>\n";
		}

if ( $r['include_selected'] && ( $r['selected'] > 0 ) ) {
			$found_selected = false;
			$r['selected']  = (int) $r['selected'];
			foreach ( (array) $users as $user ) {
				$user->ID = (int) $user->ID;
				if ( $user->ID === $r['selected'] ) {
					$found_selected = true;
				}
			}

if ( ! $found_selected ) {
				$users[] = get_userdata( $r['selected'] );
			}
		}

foreach ( (array) $users as $user ) {
			if ( 'display_name_with_login' === $show ) {
				/* translators: 1: display name, 2: user_login */
				$display = sprintf( _x( '%1$s (%2$s)', 'user dropdown' ), $user->display_name, $user->user_login );
			} elseif ( ! empty( $user->$show ) ) {
				$display = $user->$show;
			} else {
				$display = '(' . $user->user_login . ')';
			}

$_selected = selected( $user->ID, $r['selected'], false );
			$output .= "\t<option value='$user->ID'$_selected>" . esc_html( $display ) . "</option>\n";
		}

$output .= '</select>';
	}

/**
	 * Filters the wp_dropdown_users() HTML output.
	 *
	 * @since 2.3.0
	 *
	 * @param string $output HTML output generated by wp_dropdown_users().
	 */
	$html = apply_filters( 'wp_dropdown_users', $output );

if ( $r['echo'] ) {
		echo $html;
	}
	return $html;
}

/**
 * Sanitize user field based on context.
 *
 * Possible context values are:  'raw', 'edit', 'db', 'display', 'attribute' and 'js'. The
 * 'display' context is used by default. 'attribute' and 'js' contexts are treated like 'display'
 * when calling filters.
 *
 * @since 2.3.0
 *
 * @param string $field   The user Object field name.
 * @param mixed  $value   The user Object value.
 * @param int    $user_id User ID.
 * @param string $context How to sanitize user fields. Looks for 'raw', 'edit', 'db', 'display',
 *                        'attribute' and 'js'.
 * @return mixed Sanitized value.
 */
function sanitize_user_field( $field, $value, $user_id, $context ) {
	$int_fields = array( 'ID' );
	if ( in_array( $field, $int_fields ) ) {
		$value = (int) $value;
	}

if ( 'raw' == $context ) {
		return $value;
	}

if ( ! is_string( $value ) && ! is_numeric( $value ) ) {
		return $value;
	}

$prefixed = false !== strpos( $field, 'user_' );

if ( 'edit' == $context ) {
		if ( $prefixed ) {

/** This filter is documented in site-inc/post.php */
			$value = apply_filters( "edit_{$field}", $value, $user_id );
		} else {

/**
			 * Filters a user field value in the 'edit' context.
			 *
			 * The dynamic portion of the hook name, `$field`, refers to the prefixed user
			 * field being filtered, such as 'user_login', 'user_email', 'first_name', etc.
			 *
			 * @since 2.9.0
			 *
			 * @param mixed $value   Value of the prefixed user field.
			 * @param int   $user_id User ID.
			 */
			$value = apply_filters( "edit_user_{$field}", $value, $user_id );
		}

if ( 'description' == $field ) {
			$value = esc_html( $value ); // textarea_escaped?
		} else {
			$value = esc_attr( $value );
		}
	} elseif ( 'db' == $context ) {
		if ( $prefixed ) {
			/** This filter is documented in site-inc/post.php */
			$value = apply_filters( "pre_{$field}", $value );
		} else {

/**
			 * Filters the value of a user field in the 'db' context.
			 *
			 * The dynamic portion of the hook name, `$field`, refers to the prefixed user
			 * field being filtered, such as 'user_login', 'user_email', 'first_name', etc.
			 *
			 * @since 2.9.0
			 *
			 * @param mixed $value Value of the prefixed user field.
			 */
			$value = apply_filters( "pre_user_{$field}", $value );
		}
	} else {
		// Use display filters by default.
		if ( $prefixed ) {

/** This filter is documented in site-inc/post.php */
			$value = apply_filters( "{$field}", $value, $user_id, $context );
		} else {

/**
			 * Filters the value of a user field in a standard context.
			 *
			 * The dynamic portion of the hook name, `$field`, refers to the prefixed user
			 * field being filtered, such as 'user_login', 'user_email', 'first_name', etc.
			 *
			 * @since 2.9.0
			 *
			 * @param mixed  $value   The user object value to sanitize.
			 * @param int    $user_id User ID.
			 * @param string $context The context to filter within.
			 */
			$value = apply_filters( "user_{$field}", $value, $user_id, $context );
		}
	}

if ( 'user_url' == $field ) {
		$value = esc_url( $value );
	}

if ( 'attribute' == $context ) {
		$value = esc_attr( $value );
	} elseif ( 'js' == $context ) {
		$value = esc_js( $value );
	}
	return $value;
}

/**
 * Update all user caches
 *
 * @since 3.0.0
 *
 * @param WP_User $user User object to be cached
 * @return bool|null Returns false on failure.
 */
function update_user_caches( $user ) {
	if ( $user instanceof WP_User ) {
		if ( ! $user->exists() ) {
			return false;
		}

$user = $user->data;
	}

wp_cache_add( $user->ID, $user, 'users' );
	wp_cache_add( $user->user_login, $user->ID, 'userlogins' );
	wp_cache_add( $user->user_email, $user->ID, 'useremail' );
	wp_cache_add( $user->user_nicename, $user->ID, 'userslugs' );
}

/**
 * Clean all user caches
 *
 * @since 3.0.0
 * @since 4.4.0 'clean_user_cache' action was added.
 *
 * @param WP_User|int $user User object or ID to be cleaned from the cache
 */
function clean_user_cache( $user ) {
	if ( is_numeric( $user ) ) {
		$user = new WP_User( $user );
	}

if ( ! $user->exists() ) {
		return;
	}

wp_cache_delete( $user->ID, 'users' );
	wp_cache_delete( $user->user_login, 'userlogins' );
	wp_cache_delete( $user->user_email, 'useremail' );
	wp_cache_delete( $user->user_nicename, 'userslugs' );

/**
	 * Fires immediately after the given user's cache is cleaned.
	 *
	 * @since 4.4.0
	 *
	 * @param int     $user_id User ID.
	 * @param WP_User $user    User object.
	 */
	do_action( 'clean_user_cache', $user->ID, $user );
}

/**
 * Determines whether the given username exists.
 *
 * For more information on this and similar theme functions, check out
 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
 * Conditional Tags} article in the Theme Developer Handbook.
 *
 * @since 2.0.0
 *
 * @param string $username Username.
 * @return int|false The user's ID on success, and false on failure.
 */
function username_exists( $username ) {
	$user = get_user_by( 'login', $username );
	if ( $user ) {
		$user_id = $user->ID;
	} else {
		$user_id = false;
	}

/**
	 * Filters whether the given username exists or not.
	 *
	 * @since 4.9.0
	 *
	 * @param int|false $user_id  The user's ID on success, and false on failure.
	 * @param string    $username Username to check.
	 */
	return apply_filters( 'username_exists', $user_id, $username );
}

/**
 * Determines whether the given email exists.
 *
 * For more information on this and similar theme functions, check out
 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
 * Conditional Tags} article in the Theme Developer Handbook.
 *
 * @since 2.1.0
 *
 * @param string $email Email.
 * @return int|false The user's ID on success, and false on failure.
 */
function email_exists( $email ) {
	$user = get_user_by( 'email', $email );
	if ( $user ) {
		return $user->ID;
	}
	return false;
}

/**
 * Checks whether a username is valid.
 *
 * @since 2.0.1
 * @since 4.4.0 Empty sanitized usernames are now considered invalid
 *
 * @param string $username Username.
 * @return bool Whether username given is valid
 */
function validate_username( $username ) {
	$sanitized = sanitize_user( $username, true );
	$valid     = ( $sanitized == $username && ! empty( $sanitized ) );

/**
	 * Filters whether the provided username is valid or not.
	 *
	 * @since 2.0.1
	 *
	 * @param bool   $valid    Whether given username is valid.
	 * @param string $username Username to check.
	 */
	return apply_filters( 'validate_username', $valid, $username );
}

/**
 * Insert a user into the database.
 *
 * Most of the `$userdata` array fields have filters associated with the values. Exceptions are
 * 'ID', 'rich_editing', 'syntax_highlighting', 'comment_shortcuts', 'admin_color', 'use_ssl',
 * 'user_registered', and 'role'. The filters have the prefix 'pre_user_' followed by the field
 * name. An example using 'description' would have the filter called, 'pre_user_description' that
 * can be hooked into.
 *
 * @since 2.0.0
 * @since 3.6.0 The `aim`, `jabber`, and `yim` fields were removed as default user contact
 *              methods for new installations. See wp_get_user_contact_methods().
 * @since 4.7.0 The user's locale can be passed to `$userdata`.
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param array|object|WP_User $userdata {
 *     An array, object, or WP_User object of user data arguments.
 *
 *     @type int         $ID                   User ID. If supplied, the user will be updated.
 *     @type string      $user_pass            The plain-text user password.
 *     @type string      $user_login           The user's login username.
 *     @type string      $user_nicename        The URL-friendly user name.
 *     @type string      $user_url             The user URL.
 *     @type string      $user_email           The user email address.
 *     @type string      $display_name         The user's display name.
 *                                             Default is the user's username.
 *     @type string      $nickname             The user's nickname.
 *                                             Default is the user's username.
 *     @type string      $first_name           The user's first name. For new users, will be used
 *                                             to build the first part of the user's display name
 *                                             if `$display_name` is not specified.
 *     @type string      $last_name            The user's last name. For new users, will be used
 *                                             to build the second part of the user's display name
 *                                             if `$display_name` is not specified.
 *     @type string      $description          The user's biographical description.
 *     @type string|bool $rich_editing         Whether to enable the rich-editor for the user.
 *                                             False if not empty.
 *     @type string|bool $syntax_highlighting  Whether to enable the rich code editor for the user.
 *                                             False if not empty.
 *     @type string|bool $comment_shortcuts    Whether to enable comment moderation keyboard
 *                                             shortcuts for the user. Default false.
 *     @type string      $admin_color          Admin color scheme for the user. Default 'fresh'.
 *     @type bool        $use_ssl              Whether the user should always access the admin over
 *                                             https. Default false.
 *     @type string      $user_registered      Date the user registered. Format is 'Y-m-d H:i:s'.
 *     @type string|bool $show_admin_bar_front Whether to display the Admin Bar for the user on the
 *                                             site's front end. Default true.
 *     @type string      $role                 User's role.
 *     @type string      $locale               User's locale. Default empty.
 * }
 * @return int|WP_Error The newly created user's ID or a WP_Error object if the user could not
 *                      be created.
 */
function wp_insert_user( $userdata ) {
	global $wpdb;

if ( $userdata instanceof stdClass ) {
		$userdata = get_object_vars( $userdata );
	} elseif ( $userdata instanceof WP_User ) {
		$userdata = $userdata->to_array();
	}

// Are we updating or creating?
	if ( ! empty( $userdata['ID'] ) ) {
		$ID            = (int) $userdata['ID'];
		$update        = true;
		$old_user_data = get_userdata( $ID );

if ( ! $old_user_data ) {
			return new WP_Error( 'invalid_user_id', __( 'Invalid user ID.' ) );
		}

// hashed in wp_update_user(), plaintext if called directly
		$user_pass = ! empty( $userdata['user_pass'] ) ? $userdata['user_pass'] : $old_user_data->user_pass;
	} else {
		$update = false;
		// Hash the password
		$user_pass = wp_hash_password( $userdata['user_pass'] );
	}

$sanitized_user_login = sanitize_user( $userdata['user_login'], true );

/**
	 * Filters a username after it has been sanitized.
	 *
	 * This filter is called before the user is created or updated.
	 *
	 * @since 2.0.3
	 *
	 * @param string $sanitized_user_login Username after it has been sanitized.
	 */
	$pre_user_login = apply_filters( 'pre_user_login', $sanitized_user_login );

//Remove any non-printable chars from the login string to see if we have ended up with an empty username
	$user_login = trim( $pre_user_login );

// user_login must be between 0 and 60 characters.
	if ( empty( $user_login ) ) {
		return new WP_Error( 'empty_user_login', __( 'Cannot create a user with an empty login name.' ) );
	} elseif ( mb_strlen( $user_login ) > 60 ) {
		return new WP_Error( 'user_login_too_long', __( 'Username may not be longer than 60 characters.' ) );
	}

if ( ! $update && username_exists( $user_login ) ) {
		return new WP_Error( 'existing_user_login', __( 'Sorry, that username already exists!' ) );
	}

/**
	 * Filters the list of blacklisted usernames.
	 *
	 * @since 4.4.0
	 *
	 * @param array $usernames Array of blacklisted usernames.
	 */
	$illegal_logins = (array) apply_filters( 'illegal_user_logins', array() );

if ( in_array( strtolower( $user_login ), array_map( 'strtolower', $illegal_logins ) ) ) {
		return new WP_Error( 'invalid_username', __( 'Sorry, that username is not allowed.' ) );
	}

/*
	 * If a nicename is provided, remove unsafe user characters before using it.
	 * Otherwise build a nicename from the user_login.
	 */
	if ( ! empty( $userdata['user_nicename'] ) ) {
		$user_nicename = sanitize_user( $userdata['user_nicename'], true );
		if ( mb_strlen( $user_nicename ) > 50 ) {
			return new WP_Error( 'user_nicename_too_long', __( 'Nicename may not be longer than 50 characters.' ) );
		}
	} else {
		$user_nicename = mb_substr( $user_login, 0, 50 );
	}

$user_nicename = sanitize_title( $user_nicename );

// Store values to save in user meta.
	$meta = array();

/**
	 * Filters a user's nicename before the user is created or updated.
	 *
	 * @since 2.0.3
	 *
	 * @param string $user_nicename The user's nicename.
	 */
	$user_nicename = apply_filters( 'pre_user_nicename', $user_nicename );

$raw_user_url = empty( $userdata['user_url'] ) ? '' : $userdata['user_url'];

/**
	 * Filters a user's URL before the user is created or updated.
	 *
	 * @since 2.0.3
	 *
	 * @param string $raw_user_url The user's URL.
	 */
	$user_url = apply_filters( 'pre_user_url', $raw_user_url );

$raw_user_email = empty( $userdata['user_email'] ) ? '' : $userdata['user_email'];

/**
	 * Filters a user's email before the user is created or updated.
	 *
	 * @since 2.0.3
	 *
	 * @param string $raw_user_email The user's email.
	 */
	$user_email = apply_filters( 'pre_user_email', $raw_user_email );

/*
	 * If there is no update, just check for `email_exists`. If there is an update,
	 * check if current email and new email are the same, or not, and check `email_exists`
	 * accordingly.
	 */
	if ( ( ! $update || ( ! empty( $old_user_data ) && 0 !== strcasecmp( $user_email, $old_user_data->user_email ) ) )
		&& ! defined( 'WP_IMPORTING' )
		&& email_exists( $user_email )
	) {
		return new WP_Error( 'existing_user_email', __( 'Sorry, that email address is already used!' ) );
	}
	$nickname = empty( $userdata['nickname'] ) ? $user_login : $userdata['nickname'];

/**
	 * Filters a user's nickname before the user is created or updated.
	 *
	 * @since 2.0.3
	 *
	 * @param string $nickname The user's nickname.
	 */
	$meta['nickname'] = apply_filters( 'pre_user_nickname', $nickname );

$first_name = empty( $userdata['first_name'] ) ? '' : $userdata['first_name'];

/**
	 * Filters a user's first name before the user is created or updated.
	 *
	 * @since 2.0.3
	 *
	 * @param string $first_name The user's first name.
	 */
	$meta['first_name'] = apply_filters( 'pre_user_first_name', $first_name );

$last_name = empty( $userdata['last_name'] ) ? '' : $userdata['last_name'];

/**
	 * Filters a user's last name before the user is created or updated.
	 *
	 * @since 2.0.3
	 *
	 * @param string $last_name The user's last name.
	 */
	$meta['last_name'] = apply_filters( 'pre_user_last_name', $last_name );

if ( empty( $userdata['display_name'] ) ) {
		if ( $update ) {
			$display_name = $user_login;
		} elseif ( $meta['first_name'] && $meta['last_name'] ) {
			/* translators: 1: first name, 2: last name */
			$display_name = sprintf( _x( '%1$s %2$s', 'Display name based on first name and last name' ), $meta['first_name'], $meta['last_name'] );
		} elseif ( $meta['first_name'] ) {
			$display_name = $meta['first_name'];
		} elseif ( $meta['last_name'] ) {
			$display_name = $meta['last_name'];
		} else {
			$display_name = $user_login;
		}
	} else {
		$display_name = $userdata['display_name'];
	}

/**
	 * Filters a user's display name before the user is created or updated.
	 *
	 * @since 2.0.3
	 *
	 * @param string $display_name The user's display name.
	 */
	$display_name = apply_filters( 'pre_user_display_name', $display_name );

$description = empty( $userdata['description'] ) ? '' : $userdata['description'];

/**
	 * Filters a user's description before the user is created or updated.
	 *
	 * @since 2.0.3
	 *
	 * @param string $description The user's description.
	 */
	$meta['description'] = apply_filters( 'pre_user_description', $description );

$meta['rich_editing'] = empty( $userdata['rich_editing'] ) ? 'true' : $userdata['rich_editing'];

$meta['syntax_highlighting'] = empty( $userdata['syntax_highlighting'] ) ? 'true' : $userdata['syntax_highlighting'];

$meta['comment_shortcuts'] = empty( $userdata['comment_shortcuts'] ) || 'false' === $userdata['comment_shortcuts'] ? 'false' : 'true';

$admin_color         = empty( $userdata['admin_color'] ) ? 'fresh' : $userdata['admin_color'];
	$meta['admin_color'] = preg_replace( '|[^a-z0-9 _.\-@]|i', '', $admin_color );

$meta['use_ssl'] = empty( $userdata['use_ssl'] ) ? 0 : $userdata['use_ssl'];

$user_registered = empty( $userdata['user_registered'] ) ? gmdate( 'Y-m-d H:i:s' ) : $userdata['user_registered'];

$meta['show_admin_bar_front'] = empty( $userdata['show_admin_bar_front'] ) ? 'true' : $userdata['show_admin_bar_front'];

$meta['locale'] = isset( $userdata['locale'] ) ? $userdata['locale'] : '';

$user_nicename_check = $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->users WHERE user_nicename = %s AND user_login != %s LIMIT 1", $user_nicename, $user_login ) );

if ( $user_nicename_check ) {
		$suffix = 2;
		while ( $user_nicename_check ) {
			// user_nicename allows 50 chars. Subtract one for a hyphen, plus the length of the suffix.
			$base_length         = 49 - mb_strlen( $suffix );
			$alt_user_nicename   = mb_substr( $user_nicename, 0, $base_length ) . "-$suffix";
			$user_nicename_check = $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->users WHERE user_nicename = %s AND user_login != %s LIMIT 1", $alt_user_nicename, $user_login ) );
			$suffix++;
		}
		$user_nicename = $alt_user_nicename;
	}

$compacted = compact( 'user_pass', 'user_email', 'user_url', 'user_nicename', 'display_name', 'user_registered' );
	$data      = wp_unslash( $compacted );

if ( ! $update ) {
		$data = $data + compact( 'user_login' );
	}

/**
	 * Filters user data before the record is created or updated.
	 *
	 * It only includes data in the wp_users table wp_user, not any user metadata.
	 *
	 * @since 4.9.0
	 *
	 * @param array    $data {
	 *     Values and keys for the user.
	 *
	 *     @type string $user_login      The user's login. Only included if $update == false
	 *     @type string $user_pass       The user's password.
	 *     @type string $user_email      The user's email.
	 *     @type string $user_url        The user's url.
	 *     @type string $user_nicename   The user's nice name. Defaults to a URL-safe version of user's login
	 *     @type string $display_name    The user's display name.
	 *     @type string $user_registered MySQL timestamp describing the moment when the user registered. Defaults to
	 *                                   the current UTC timestamp.
	 * }
	 * @param bool     $update Whether the user is being updated rather than created.
	 * @param int|null $id     ID of the user to be updated, or NULL if the user is being created.
	 */
	$data = apply_filters( 'wp_pre_insert_user_data', $data, $update, $update ? (int) $ID : null );

if ( $update ) {
		if ( $user_email !== $old_user_data->user_email || $user_pass !== $old_user_data->user_pass ) {
			$data['user_activation_key'] = '';
		}
		$wpdb->update( $wpdb->users, $data, compact( 'ID' ) );
		$user_id = (int) $ID;
	} else {
		$wpdb->insert( $wpdb->users, $data );
		$user_id = (int) $wpdb->insert_id;
	}

$user = new WP_User( $user_id );

/**
	 * Filters a user's meta values and keys immediately after the user is created or updated
	 * and before any user meta is inserted or updated.
	 *
	 * Does not include contact methods. These are added using `wp_get_user_contact_methods( $user )`.
	 *
	 * @since 4.4.0
	 *
	 * @param array $meta {
	 *     Default meta values and keys for the user.
	 *
	 *     @type string   $nickname             The user's nickname. Default is the user's username.
	 *     @type string   $first_name           The user's first name.
	 *     @type string   $last_name            The user's last name.
	 *     @type string   $description          The user's description.
	 *     @type bool     $rich_editing         Whether to enable the rich-editor for the user. False if not empty.
	 *     @type bool     $syntax_highlighting  Whether to enable the rich code editor for the user. False if not empty.
	 *     @type bool     $comment_shortcuts    Whether to enable keyboard shortcuts for the user. Default false.
	 *     @type string   $admin_color          The color scheme for a user's admin screen. Default 'fresh'.
	 *     @type int|bool $use_ssl              Whether to force SSL on the user's admin area. 0|false if SSL is
	 *                                          not forced.
	 *     @type bool     $show_admin_bar_front Whether to show the admin bar on the front end for the user.
	 *                                          Default true.
	 * }
	 * @param WP_User $user   User object.
	 * @param bool    $update Whether the user is being updated rather than created.
	 */
	$meta = apply_filters( 'insert_user_meta', $meta, $user, $update );

// Update user meta.
	foreach ( $meta as $key => $value ) {
		update_user_meta( $user_id, $key, $value );
	}

foreach ( wp_get_user_contact_methods( $user ) as $key => $value ) {
		if ( isset( $userdata[ $key ] ) ) {
			update_user_meta( $user_id, $key, $userdata[ $key ] );
		}
	}

if ( isset( $userdata['role'] ) ) {
		$user->set_role( $userdata['role'] );
	} elseif ( ! $update ) {
		$user->set_role( get_option( 'default_role' ) );
	}
	wp_cache_delete( $user_id, 'users' );
	wp_cache_delete( $user_login, 'userlogins' );

if ( $update ) {
		/**
		 * Fires immediately after an existing user is updated.
		 *
		 * @since 2.0.0
		 *
		 * @param int     $user_id       User ID.
		 * @param WP_User $old_user_data Object containing user's data prior to update.
		 */
		do_action( 'profile_update', $user_id, $old_user_data );
	} else {
		/**
		 * Fires immediately after a new user is registered.
		 *
		 * @since 1.5.0
		 *
		 * @param int $user_id User ID.
		 */
		do_action( 'user_register', $user_id );
	}

return $user_id;
}

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param array|object|WP_User $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user( $userdata ) {
	if ( $userdata instanceof stdClass ) {
		$userdata = get_object_vars( $userdata );
	} elseif ( $userdata instanceof WP_User ) {
		$userdata = $userdata->to_array();
	}

$ID = isset( $userdata['ID'] ) ? (int) $userdata['ID'] : 0;
	if ( ! $ID ) {
		return new WP_Error( 'invalid_user_id', __( 'Invalid user ID.' ) );
	}

// First, get all of the original fields
	$user_obj = get_userdata( $ID );
	if ( ! $user_obj ) {
		return new WP_Error( 'invalid_user_id', __( 'Invalid user ID.' ) );
	}

$user = $user_obj->to_array();

// Add additional custom fields
	foreach ( _get_additional_user_keys( $user_obj ) as $key ) {
		$user[ $key ] = get_user_meta( $ID, $key, true );
	}

// Escape data pulled from DB.
	$user = add_magic_quotes( $user );

if ( ! empty( $userdata['user_pass'] ) && $userdata['user_pass'] !== $user_obj->user_pass ) {
		// If password is changing, hash it now
		$plaintext_pass        = $userdata['user_pass'];
		$userdata['user_pass'] = wp_hash_password( $userdata['user_pass'] );

/**
		 * Filters whether to send the password change email.
		 *
		 * @since 4.3.0
		 *
		 * @see wp_insert_user() For `$user` and `$userdata` fields.
		 *
		 * @param bool  $send     Whether to send the email.
		 * @param array $user     The original user array.
		 * @param array $userdata The updated user array.
		 */
		$send_password_change_email = apply_filters( 'send_password_change_email', true, $user, $userdata );
	}

if ( isset( $userdata['user_email'] ) && $user['user_email'] !== $userdata['user_email'] ) {
		/**
		 * Filters whether to send the email change email.
		 *
		 * @since 4.3.0
		 *
		 * @see wp_insert_user() For `$user` and `$userdata` fields.
		 *
		 * @param bool  $send     Whether to send the email.
		 * @param array $user     The original user array.
		 * @param array $userdata The updated user array.
		 */
		$send_email_change_email = apply_filters( 'send_email_change_email', true, $user, $userdata );
	}

wp_cache_delete( $user['user_email'], 'useremail' );
	wp_cache_delete( $user['user_nicename'], 'userslugs' );

// Merge old and new fields with new fields overwriting old ones.
	$userdata = array_merge( $user, $userdata );
	$user_id  = wp_insert_user( $userdata );

if ( ! is_wp_error( $user_id ) ) {

$blog_name = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );

$switched_locale = false;
		if ( ! empty( $send_password_change_email ) || ! empty( $send_email_change_email ) ) {
			$switched_locale = switch_to_locale( get_user_locale( $user_id ) );
		}

if ( ! empty( $send_password_change_email ) ) {
			/* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
			$pass_change_text = __(
				'Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###'
			);

$pass_change_email = array(
				'to'      => $user['user_email'],
				/* translators: User password change notification email subject. %s: Site name */
				'subject' => __( '[%s] Notice of Password Change' ),
				'message' => $pass_change_text,
				'headers' => '',
			);

/**
			 * Filters the contents of the email sent when the user's password is changed.
			 *
			 * @since 4.3.0
			 *
			 * @param array $pass_change_email {
			 *            Used to build wp_mail().
			 *            @type string $to      The intended recipients. Add emails in a comma separated string.
			 *            @type string $subject The subject of the email.
			 *            @type string $message The content of the email.
			 *                The following strings have a special meaning and will get replaced dynamically:
			 *                - ###USERNAME###    The current user's username.
			 *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
			 *                - ###EMAIL###       The user's email address.
			 *                - ###SITENAME###    The name of the site.
			 *                - ###SITEURL###     The URL to the site.
			 *            @type string $headers Headers. Add headers in a newline (\r\n) separated string.
			 *        }
			 * @param array $user     The original user array.
			 * @param array $userdata The updated user array.
			 */
			$pass_change_email = apply_filters( 'password_change_email', $pass_change_email, $user, $userdata );

$pass_change_email['message'] = str_replace( '###USERNAME###', $user['user_login'], $pass_change_email['message'] );
			$pass_change_email['message'] = str_replace( '###ADMIN_EMAIL###', get_option( 'admin_email' ), $pass_change_email['message'] );
			$pass_change_email['message'] = str_replace( '###EMAIL###', $user['user_email'], $pass_change_email['message'] );
			$pass_change_email['message'] = str_replace( '###SITENAME###', $blog_name, $pass_change_email['message'] );
			$pass_change_email['message'] = str_replace( '###SITEURL###', home_url(), $pass_change_email['message'] );

wp_mail( $pass_change_email['to'], sprintf( $pass_change_email['subject'], $blog_name ), $pass_change_email['message'], $pass_change_email['headers'] );
		}

if ( ! empty( $send_email_change_email ) ) {
			/* translators: Do not translate USERNAME, ADMIN_EMAIL, NEW_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
			$email_change_text = __(
				'Hi ###USERNAME###,

This notice confirms that your email address on ###SITENAME### was changed to ###NEW_EMAIL###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###'
			);

$email_change_email = array(
				'to'      => $user['user_email'],
				/* translators: User email change notification email subject. %s: Site name */
				'subject' => __( '[%s] Notice of Email Change' ),
				'message' => $email_change_text,
				'headers' => '',
			);

/**
			 * Filters the contents of the email sent when the user's email is changed.
			 *
			 * @since 4.3.0
			 *
			 * @param array $email_change_email {
			 *            Used to build wp_mail().
			 *            @type string $to      The intended recipients.
			 *            @type string $subject The subject of the email.
			 *            @type string $message The content of the email.
			 *                The following strings have a special meaning and will get replaced dynamically:
			 *                - ###USERNAME###    The current user's username.
			 *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
			 *                - ###NEW_EMAIL###   The new email address.
			 *                - ###EMAIL###       The old email address.
			 *                - ###SITENAME###    The name of the site.
			 *                - ###SITEURL###     The URL to the site.
			 *            @type string $headers Headers.
			 *        }
			 * @param array $user The original user array.
			 * @param array $userdata The updated user array.
			 */
			$email_change_email = apply_filters( 'email_change_email', $email_change_email, $user, $userdata );

$email_change_email['message'] = str_replace( '###USERNAME###', $user['user_login'], $email_change_email['message'] );
			$email_change_email['message'] = str_replace( '###ADMIN_EMAIL###', get_option( 'admin_email' ), $email_change_email['message'] );
			$email_change_email['message'] = str_replace( '###NEW_EMAIL###', $userdata['user_email'], $email_change_email['message'] );
			$email_change_email['message'] = str_replace( '###EMAIL###', $user['user_email'], $email_change_email['message'] );
			$email_change_email['message'] = str_replace( '###SITENAME###', $blog_name, $email_change_email['message'] );
			$email_change_email['message'] = str_replace( '###SITEURL###', home_url(), $email_change_email['message'] );

wp_mail( $email_change_email['to'], sprintf( $email_change_email['subject'], $blog_name ), $email_change_email['message'], $email_change_email['headers'] );
		}

if ( $switched_locale ) {
			restore_previous_locale();
		}
	}

// Update the cookies if the password changed.
	$current_user = wp_get_current_user();
	if ( $current_user->ID == $ID ) {
		if ( isset( $plaintext_pass ) ) {
			wp_clear_auth_cookie();

// Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
			// If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
			$logged_in_cookie = wp_parse_auth_cookie( '', 'logged_in' );
			/** This filter is documented in site-inc/pluggable.php */
			$default_cookie_life = apply_filters( 'auth_cookie_expiration', ( 2 * DAY_IN_SECONDS ), $ID, false );
			$remember            = ( ( $logged_in_cookie['expiration'] - time() ) > $default_cookie_life );

wp_set_auth_cookie( $ID, $remember );
		}
	}

return $user_id;
}

/**
 * A simpler way of inserting a user into the database.
 *
 * Creates a new user with just the username, password, and email. For more
 * complex user creation use wp_insert_user() to specify more information.
 *
 * @since 2.0.0
 * @see wp_insert_user() More complete way to create a new user
 *
 * @param string $username The user's username.
 * @param string $password The user's password.
 * @param string $email    Optional. The user's email. Default empty.
 * @return int|WP_Error The newly created user's ID or a WP_Error object if the user could not
 *                      be created.
 */
function wp_create_user( $username, $password, $email = '' ) {
	$user_login = wp_slash( $username );
	$user_email = wp_slash( $email );
	$user_pass  = $password;

$userdata = compact( 'user_login', 'user_email', 'user_pass' );
	return wp_insert_user( $userdata );
}

/**
 * Returns a list of meta keys to be (maybe) populated in wp_update_user().
 *
 * The list of keys returned via this function are dependent on the presence
 * of those keys in the user meta data to be set.
 *
 * @since 3.3.0
 * @access private
 *
 * @param WP_User $user WP_User instance.
 * @return array List of user keys to be populated in wp_update_user().
 */
function _get_additional_user_keys( $user ) {
	$keys = array( 'first_name', 'last_name', 'nickname', 'description', 'rich_editing', 'syntax_highlighting', 'comment_shortcuts', 'admin_color', 'use_ssl', 'show_admin_bar_front', 'locale' );
	return array_merge( $keys, array_keys( wp_get_user_contact_methods( $user ) ) );
}

/**
 * Set up the user contact methods.
 *
 * Default contact methods were removed in 3.6. A filter dictates contact methods.
 *
 * @since 3.7.0
 *
 * @param WP_User $user Optional. WP_User object.
 * @return array Array of contact methods and their labels.
 */
function wp_get_user_contact_methods( $user = null ) {
	$methods = array();
	if ( get_site_option( 'initial_db_version' ) < 23588 ) {
		$methods = array(
			'aim' => __( 'AIM' ),
			'yim' => __( 'Yahoo IM' ),
			'jabber' => __( 'Jabber / Google Talk' ),
		);
	}

/**
	 * Filters the user contact methods.
	 *
	 * @since 2.9.0
	 *
	 * @param array   $methods Array of contact methods and their labels.
	 * @param WP_User $user    WP_User object.
	 */
	return apply_filters( 'user_contactmethods', $methods, $user );
}

/**
 * The old private function for setting up user contact methods.
 *
 * Use wp_get_user_contact_methods() instead.
 *
 * @since 2.9.0
 * @access private
 *
 * @param WP_User $user Optional. WP_User object. Default null.
 * @return array Array of contact methods and their labels.
 */
function _wp_get_user_contactmethods( $user = null ) {
	return wp_get_user_contact_methods( $user );
}

/**
 * Gets the text suggesting how to create strong passwords.
 *
 * @since 4.1.0
 *
 * @return string The password hint text.
 */
function wp_get_password_hint() {
	$hint = __( 'Hint: The password should be at least twelve characters long. To make it stronger, use upper and lower case letters, numbers, and symbols like ! " ? $ % ^ &amp; ).' );

/**
	 * Filters the text describing the site's password complexity policy.
	 *
	 * @since 4.1.0
	 *
	 * @param string $hint The password hint text.
	 */
	return apply_filters( 'password_hint', $hint );
}

/**
 * Creates, stores, then returns a password reset key for user.
 *
 * @since 4.4.0
 *
 * @global wpdb         $wpdb      WordPress database abstraction object.
 * @global PasswordHash $wp_hasher Portable PHP password hashing framework.
 *
 * @param WP_User $user User to retrieve password reset key for.
 *
 * @return string|WP_Error Password reset key on success. WP_Error on error.
 */
function get_password_reset_key( $user ) {
	global $wpdb, $wp_hasher;

if ( ! ( $user instanceof WP_User ) ) {
		return new WP_Error( 'invalidcombo', __( 'ERROR: There is no account with that username or email address.' ) );
	}

/**
	 * Fires before a new password is retrieved.
	 *
	 * Use the {@see 'retrieve_password'} hook instead.
	 *
	 * @since 1.5.0
	 * @deprecated 1.5.1 Misspelled. Use 'retrieve_password' hook instead.
	 *
	 * @param string $user_login The user login name.
	 */
	do_action( 'retreive_password', $user->user_login );

/**
	 * Fires before a new password is retrieved.
	 *
	 * @since 1.5.1
	 *
	 * @param string $user_login The user login name.
	 */
	do_action( 'retrieve_password', $user->user_login );

$allow = true;
	if ( is_multisite() && is_user_spammy( $user ) ) {
		$allow = false;
	}

/**
	 * Filters whether to allow a password to be reset.
	 *
	 * @since 2.7.0
	 *
	 * @param bool $allow         Whether to allow the password to be reset. Default true.
	 * @param int  $user_data->ID The ID of the user attempting to reset a password.
	 */
	$allow = apply_filters( 'allow_password_reset', $allow, $user->ID );

if ( ! $allow ) {
		return new WP_Error( 'no_password_reset', __( 'Password reset is not allowed for this user' ) );
	} elseif ( is_wp_error( $allow ) ) {
		return $allow;
	}

// Generate something random for a password reset key.
	$key = wp_generate_password( 20, false );

/**
	 * Fires when a password reset key is generated.
	 *
	 * @since 2.5.0
	 *
	 * @param string $user_login The username for the user.
	 * @param string $key        The generated password reset key.
	 */
	do_action( 'retrieve_password_key', $user->user_login, $key );

// Now insert the key, hashed, into the DB.
	if ( empty( $wp_hasher ) ) {
		require_once ABSPATH . WPINC . '/class-phpass.php';
		$wp_hasher = new PasswordHash( 8, true );
	}
	$hashed    = time() . ':' . $wp_hasher->HashPassword( $key );
	$key_saved = $wpdb->update( $wpdb->users, array( 'user_activation_key' => $hashed ), array( 'user_login' => $user->user_login ) );
	if ( false === $key_saved ) {
		return new WP_Error( 'no_password_key_update', __( 'Could not save password reset key to database.' ) );
	}

return $key;
}

/**
 * Retrieves a user row based on password reset key and login
 *
 * A key is considered 'expired' if it exactly matches the value of the
 * user_activation_key field, rather than being matched after going through the
 * hashing process. This field is now hashed; old values are no longer accepted
 * but have a different WP_Error code so good user feedback can be provided.
 *
 * @since 3.1.0
 *
 * @global wpdb         $wpdb      WordPress database object for queries.
 * @global PasswordHash $wp_hasher Portable PHP password hashing framework instance.
 *
 * @param string $key       Hash to validate sending user's password.
 * @param string $login     The user login.
 * @return WP_User|WP_Error WP_User object on success, WP_Error object for invalid or expired keys.
 */
function check_password_reset_key( $key, $login ) {
	global $wpdb, $wp_hasher;

$key = preg_replace( '/[^a-z0-9]/i', '', $key );

if ( empty( $key ) || ! is_string( $key ) ) {
		return new WP_Error( 'invalid_key', __( 'Invalid key' ) );
	}

if ( empty( $login ) || ! is_string( $login ) ) {
		return new WP_Error( 'invalid_key', __( 'Invalid key' ) );
	}

$row = $wpdb->get_row( $wpdb->prepare( "SELECT ID, user_activation_key FROM $wpdb->users WHERE user_login = %s", $login ) );
	if ( ! $row ) {
		return new WP_Error( 'invalid_key', __( 'Invalid key' ) );
	}

if ( empty( $wp_hasher ) ) {
		require_once ABSPATH . WPINC . '/class-phpass.php';
		$wp_hasher = new PasswordHash( 8, true );
	}

/**
	 * Filters the expiration time of password reset keys.
	 *
	 * @since 4.3.0
	 *
	 * @param int $expiration The expiration time in seconds.
	 */
	$expiration_duration = apply_filters( 'password_reset_expiration', DAY_IN_SECONDS );

if ( false !== strpos( $row->user_activation_key, ':' ) ) {
		list( $pass_request_time, $pass_key ) = explode( ':', $row->user_activation_key, 2 );
		$expiration_time                      = $pass_request_time + $expiration_duration;
	} else {
		$pass_key        = $row->user_activation_key;
		$expiration_time = false;
	}

if ( ! $pass_key ) {
		return new WP_Error( 'invalid_key', __( 'Invalid key' ) );
	}

$hash_is_correct = $wp_hasher->CheckPassword( $key, $pass_key );

if ( $hash_is_correct && $expiration_time && time() < $expiration_time ) {
		return get_userdata( $row->ID );
	} elseif ( $hash_is_correct && $expiration_time ) {
		// Key has an expiration time that's passed
		return new WP_Error( 'expired_key', __( 'Invalid key' ) );
	}

if ( hash_equals( $row->user_activation_key, $key ) || ( $hash_is_correct && ! $expiration_time ) ) {
		$return  = new WP_Error( 'expired_key', __( 'Invalid key' ) );
		$user_id = $row->ID;

/**
		 * Filters the return value of check_password_reset_key() when an
		 * old-style key is used.
		 *
		 * @since 3.7.0 Previously plain-text keys were stored in the database.
		 * @since 4.3.0 Previously key hashes were stored without an expiration time.
		 *
		 * @param WP_Error $return  A WP_Error object denoting an expired key.
		 *                          Return a WP_User object to validate the key.
		 * @param int      $user_id The matched user ID.
		 */
		return apply_filters( 'password_reset_key_expired', $return, $user_id );
	}

return new WP_Error( 'invalid_key', __( 'Invalid key' ) );
}

/**
 * Handles resetting the user's password.
 *
 * @since 2.5.0
 *
 * @param WP_User $user     The user
 * @param string $new_pass New password for the user in plaintext
 */
function reset_password( $user, $new_pass ) {
	/**
	 * Fires before the user's password is reset.
	 *
	 * @since 1.5.0
	 *
	 * @param object $user     The user.
	 * @param string $new_pass New user password.
	 */
	do_action( 'password_reset', $user, $new_pass );

wp_set_password( $new_pass, $user->ID );
	update_user_option( $user->ID, 'default_password_nag', false, true );

/**
	 * Fires after the user's password is reset.
	 *
	 * @since 4.4.0
	 *
	 * @param WP_User $user     The user.
	 * @param string  $new_pass New user password.
	 */
	do_action( 'after_password_reset', $user, $new_pass );
}

/**
 * Handles registering a new user.
 *
 * @since 2.5.0
 *
 * @param string $user_login User's username for logging in
 * @param string $user_email User's email address to send password and add
 * @return int|WP_Error Either user's ID or error on failure.
 */
function register_new_user( $user_login, $user_email ) {
	$errors = new WP_Error();

$sanitized_user_login = sanitize_user( $user_login );
	/**
	 * Filters the email address of a user being registered.
	 *
	 * @since 2.1.0
	 *
	 * @param string $user_email The email address of the new user.
	 */
	$user_email = apply_filters( 'user_registration_email', $user_email );

// Check the username
	if ( $sanitized_user_login == '' ) {
		$errors->add( 'empty_username', __( 'ERROR: Please enter a username.' ) );
	} elseif ( ! validate_username( $user_login ) ) {
		$errors->add( 'invalid_username', __( 'ERROR: This username is invalid because it uses illegal characters. Please enter a valid username.' ) );
		$sanitized_user_login = '';
	} elseif ( username_exists( $sanitized_user_login ) ) {
		$errors->add( 'username_exists', __( 'ERROR: This username is already registered. Please choose another one.' ) );

} else {
		/** This filter is documented in site-inc/user.php */
		$illegal_user_logins = array_map( 'strtolower', (array) apply_filters( 'illegal_user_logins', array() ) );
		if ( in_array( strtolower( $sanitized_user_login ), $illegal_user_logins ) ) {
			$errors->add( 'invalid_username', __( 'ERROR: Sorry, that username is not allowed.' ) );
		}
	}

// Check the email address
	if ( $user_email == '' ) {
		$errors->add( 'empty_email', __( 'ERROR: Please type your email address.' ) );
	} elseif ( ! is_email( $user_email ) ) {
		$errors->add( 'invalid_email', __( 'ERROR: The email address isn&#8217;t correct.' ) );
		$user_email = '';
	} elseif ( email_exists( $user_email ) ) {
		$errors->add( 'email_exists', __( 'ERROR: This email is already registered, please choose another one.' ) );
	}

/**
	 * Fires when submitting registration form data, before the user is created.
	 *
	 * @since 2.1.0
	 *
	 * @param string   $sanitized_user_login The submitted username after being sanitized.
	 * @param string   $user_email           The submitted email.
	 * @param WP_Error $errors               Contains any errors with submitted username and email,
	 *                                       e.g., an empty field, an invalid username or email,
	 *                                       or an existing username or email.
	 */
	do_action( 'register_post', $sanitized_user_login, $user_email, $errors );

/**
	 * Filters the errors encountered when a new user is being registered.
	 *
	 * The filtered WP_Error object may, for example, contain errors for an invalid
	 * or existing username or email address. A WP_Error object should always returned,
	 * but may or may not contain errors.
	 *
	 * If any errors are present in $errors, this will abort the user's registration.
	 *
	 * @since 2.1.0
	 *
	 * @param WP_Error $errors               A WP_Error object containing any errors encountered
	 *                                       during registration.
	 * @param string   $sanitized_user_login User's username after it has been sanitized.
	 * @param string   $user_email           User's email.
	 */
	$errors = apply_filters( 'registration_errors', $errors, $sanitized_user_login, $user_email );

if ( $errors->has_errors() ) {
		return $errors;
	}

$user_pass = wp_generate_password( 12, false );
	$user_id = wp_create_user( $sanitized_user_login, $user_pass, $user_email );
	if ( ! $user_id || is_wp_error( $user_id ) ) {
		$errors->add( 'registerfail', sprintf( __( 'ERROR: Couldn&#8217;t register you&hellip; please contact the <a href="mailto:%s">webmaster</a> !' ), get_option( 'admin_email' ) ) );
		return $errors;
	}

update_user_option( $user_id, 'default_password_nag', true, true ); //Set up the Password change nag.

/**
	 * Fires after a new user registration has been recorded.
	 *
	 * @since 4.4.0
	 *
	 * @param int $user_id ID of the newly registered user.
	 */
	do_action( 'register_new_user', $user_id );

return $user_id;
}

/**
 * Initiates email notifications related to the creation of new users.
 *
 * Notifications are sent both to the site admin and to the newly created user.
 *
 * @since 4.4.0
 * @since 4.6.0 Converted the `$notify` parameter to accept 'user' for sending
 *              notifications only to the user created.
 *
 * @param int    $user_id ID of the newly created user.
 * @param string $notify  Optional. Type of notification that should happen. Accepts 'admin'
 *                        or an empty string (admin only), 'user', or 'both' (admin and user).
 *                        Default 'both'.
 */
function wp_send_new_user_notifications( $user_id, $notify = 'both' ) {
	wp_new_user_notification( $user_id, null, $notify );
}

/**
 * Retrieve the current session token from the logged_in cookie.
 *
 * @since 4.0.0
 *
 * @return string Token.
 */
function wp_get_session_token() {
	$cookie = wp_parse_auth_cookie( '', 'logged_in' );
	return ! empty( $cookie['token'] ) ? $cookie['token'] : '';
}

/**
 * Retrieve a list of sessions for the current user.
 *
 * @since 4.0.0
 * @return array Array of sessions.
 */
function wp_get_all_sessions() {
	$manager = WP_Session_Tokens::get_instance( get_current_user_id() );
	return $manager->get_all();
}

/**
 * Remove the current session token from the database.
 *
 * @since 4.0.0
 */
function wp_destroy_current_session() {
	$token = wp_get_session_token();
	if ( $token ) {
		$manager = WP_Session_Tokens::get_instance( get_current_user_id() );
		$manager->destroy( $token );
	}
}

/**
 * Remove all but the current session token for the current user for the database.
 *
 * @since 4.0.0
 */
function wp_destroy_other_sessions() {
	$token = wp_get_session_token();
	if ( $token ) {
		$manager = WP_Session_Tokens::get_instance( get_current_user_id() );
		$manager->destroy_others( $token );
	}
}

/**
 * Remove all session tokens for the current user from the database.
 *
 * @since 4.0.0
 */
function wp_destroy_all_sessions() {
	$manager = WP_Session_Tokens::get_instance( get_current_user_id() );
	$manager->destroy_all();
}

/**
 * Get the user IDs of all users with no role on this site.
 *
 * @since 4.4.0
 * @since 4.9.0 The `$site_id` parameter was added to support multisite.
 *
 * @param int|null $site_id Optional. The site ID to get users with no role for. Defaults to the current site.
 * @return array Array of user IDs.
 */
function wp_get_users_with_no_role( $site_id = null ) {
	global $wpdb;

if ( ! $site_id ) {
		$site_id = get_current_blog_id();
	}

$prefix = $wpdb->get_blog_prefix( $site_id );

if ( is_multisite() && $site_id != get_current_blog_id() ) {
		switch_to_blog( $site_id );
		$role_names = wp_roles()->get_names();
		restore_current_blog();
	} else {
		$role_names = wp_roles()->get_names();
	}

$regex = implode( '|', array_keys( $role_names ) );
	$regex = preg_replace( '/[^a-zA-Z_\|-]/', '', $regex );
	$users = $wpdb->get_col(
		$wpdb->prepare(
			"
		SELECT user_id
		FROM $wpdb->usermeta
		WHERE meta_key = '{$prefix}capabilities'
		AND meta_value NOT REGEXP %s
	",
			$regex
		)
	);

return $users;
}

/**
 * Retrieves the current user object.
 *
 * Will set the current user, if the current user is not set. The current user
 * will be set to the logged-in person. If no user is logged-in, then it will
 * set the current user to 0, which is invalid and won't have any permissions.
 *
 * This function is used by the pluggable functions wp_get_current_user() and
 * get_currentuserinfo(), the latter of which is deprecated but used for backward
 * compatibility.
 *
 * @since 4.5.0
 * @access private
 *
 * @see wp_get_current_user()
 * @global WP_User $current_user Checks if the current user is set.
 *
 * @return WP_User Current WP_User instance.
 */
function _wp_get_current_user() {
	global $current_user;

if ( ! empty( $current_user ) ) {
		if ( $current_user instanceof WP_User ) {
			return $current_user;
		}

// Upgrade stdClass to WP_User
		if ( is_object( $current_user ) && isset( $current_user->ID ) ) {
			$cur_id       = $current_user->ID;
			$current_user = null;
			wp_set_current_user( $cur_id );
			return $current_user;
		}

// $current_user has a junk value. Force to WP_User with ID 0.
		$current_user = null;
		wp_set_current_user( 0 );
		return $current_user;
	}

if ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) {
		wp_set_current_user( 0 );
		return $current_user;
	}

/**
	 * Filters the current user.
	 *
	 * The default filters use this to determine the current user from the
	 * request's cookies, if available.
	 *
	 * Returning a value of false will effectively short-circuit setting
	 * the current user.
	 *
	 * @since 3.9.0
	 *
	 * @param int|bool $user_id User ID if one has been determined, false otherwise.
	 */
	$user_id = apply_filters( 'determine_current_user', false );
	if ( ! $user_id ) {
		wp_set_current_user( 0 );
		return $current_user;
	}

wp_set_current_user( $user_id );

return $current_user;
}

/**
 * Send a confirmation request email when a change of user email address is attempted.
 *
 * @since 3.0.0
 * @since 4.9.0 This function was moved from site-admin/includes/ms.php so it's no longer Multisite specific.
 *
 * @global WP_Error $errors WP_Error object.
 */
function send_confirmation_on_profile_email() {
	global $errors;

$current_user = wp_get_current_user();
	if ( ! is_object( $errors ) ) {
		$errors = new WP_Error();
	}

if ( $current_user->ID != $_POST['user_id'] ) {
		return false;
	}

if ( $current_user->user_email != $_POST['email'] ) {
		if ( ! is_email( $_POST['email'] ) ) {
			$errors->add(
				'user_email',
				__( 'ERROR: The email address isn&#8217;t correct.' ),
				array(
					'form-field' => 'email',
				)
			);

return;
		}

if ( email_exists( $_POST['email'] ) ) {
			$errors->add(
				'user_email',
				__( 'ERROR: The email address is already used.' ),
				array(
					'form-field' => 'email',
				)
			);
			delete_user_meta( $current_user->ID, '_new_email' );

return;
		}

$hash           = md5( $_POST['email'] . time() . wp_rand() );
		$new_user_email = array(
			'hash'     => $hash,
			'newemail' => $_POST['email'],
		);
		update_user_meta( $current_user->ID, '_new_email', $new_user_email );

$sitename = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );

/* translators: Do not translate USERNAME, ADMIN_URL, EMAIL, SITENAME, SITEURL: those are placeholders. */
		$email_text = __(
			'Howdy ###USERNAME###,

You recently requested to have the email address on your account changed.

If this is correct, please click on the following link to change it:
###ADMIN_URL###

You can safely ignore and delete this email if you do not want to
take this action.

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###'
		);

/**
		 * Filters the text of the email sent when a change of user email address is attempted.
		 *
		 * The following strings have a special meaning and will get replaced dynamically:
		 * ###USERNAME###  The current user's username.
		 * ###ADMIN_URL### The link to click on to confirm the email change.
		 * ###EMAIL###     The new email.
		 * ###SITENAME###  The name of the site.
		 * ###SITEURL###   The URL to the site.
		 *
		 * @since MU (3.0.0)
		 * @since 4.9.0 This filter is no longer Multisite specific.
		 *
		 * @param string $email_text     Text in the email.
		 * @param array  $new_user_email {
		 *     Data relating to the new user email address.
		 *
		 *     @type string $hash     The secure hash used in the confirmation link URL.
		 *     @type string $newemail The proposed new email address.
		 * }
		 */
		$content = apply_filters( 'new_user_email_content', $email_text, $new_user_email );

$content = str_replace( '###USERNAME###', $current_user->user_login, $content );
		$content = str_replace( '###ADMIN_URL###', esc_url( admin_url( 'profile.php?newuseremail=' . $hash ) ), $content );
		$content = str_replace( '###EMAIL###', $_POST['email'], $content );
		$content = str_replace( '###SITENAME###', $sitename, $content );
		$content = str_replace( '###SITEURL###', home_url(), $content );

wp_mail( $_POST['email'], sprintf( __( '[%s] New Email Address' ), $sitename ), $content );

$_POST['email'] = $current_user->user_email;
	}
}

/**
 * Adds an admin notice alerting the user to check for confirmation request email
 * after email address change.
 *
 * @since 3.0.0
 * @since 4.9.0 This function was moved from site-admin/includes/ms.php so it's no longer Multisite specific.
 *
 * @global string $pagenow
 */
function new_user_email_admin_notice() {
	global $pagenow;

if ( 'profile.php' === $pagenow && isset( $_GET['updated'] ) ) {
		$email = get_user_meta( get_current_user_id(), '_new_email', true );
		if ( $email ) {
			/* translators: %s: New email address */
			echo '<div class="notice notice-info">' . sprintf( __( 'Your email address has not been updated yet. Please check your inbox at %s for a confirmation email.' ), '<code>' . esc_html( $email['newemail'] ) . '</code>' ) . '</div>';
		}
	}
}

/**
 * Get all user privacy request types.
 *
 * @since 4.9.6
 * @access private
 *
 * @return array List of core privacy action types.
 */
function _wp_privacy_action_request_types() {
	return array(
		'export_personal_data',
		'remove_personal_data',
	);
}

/**
 * Registers the personal data exporter for users.
 *
 * @since 4.9.6
 *
 * @param array $exporters  An array of personal data exporters.
 * @return array An array of personal data exporters.
 */
function wp_register_user_personal_data_exporter( $exporters ) {
	$exporters['wordpress-user'] = array(
		'exporter_friendly_name' => __( 'WordPress User' ),
		'callback'               => 'wp_user_personal_data_exporter',
	);

return $exporters;
}

/**
 * Finds and exports personal data associated with an email address from the user and user_meta table.
 *
 * @since 4.9.6
 *
 * @param string $email_address  The users email address.
 * @return array An array of personal data.
 */
function wp_user_personal_data_exporter( $email_address ) {
	$email_address = trim( $email_address );

$data_to_export = array();

$user = get_user_by( 'email', $email_address );

if ( ! $user ) {
		return array(
			'data' => array(),
			'done' => true,
		);
	}

$user_meta = get_user_meta( $user->ID );

$user_prop_to_export = array(
		'ID'              => __( 'User ID' ),
		'user_login'      => __( 'User Login Name' ),
		'user_nicename'   => __( 'User Nice Name' ),
		'user_email'      => __( 'User Email' ),
		'user_url'        => __( 'User URL' ),
		'user_registered' => __( 'User Registration Date' ),
		'display_name'    => __( 'User Display Name' ),
		'nickname'        => __( 'User Nickname' ),
		'first_name'      => __( 'User First Name' ),
		'last_name'       => __( 'User Last Name' ),
		'description'     => __( 'User Description' ),
	);

$user_data_to_export = array();

foreach ( $user_prop_to_export as $key => $name ) {
		$value = '';

switch ( $key ) {
			case 'ID':
			case 'user_login':
			case 'user_nicename':
			case 'user_email':
			case 'user_url':
			case 'user_registered':
			case 'display_name':
				$value = $user->data->$key;
				break;
			case 'nickname':
			case 'first_name':
			case 'last_name':
			case 'description':
				$value = $user_meta[ $key ][0];
				break;
		}

if ( ! empty( $value ) ) {
			$user_data_to_export[] = array(
				'name'  => $name,
				'value' => $value,
			);
		}
	}

$data_to_export[] = array(
		'group_id'    => 'user',
		'group_label' => __( 'User' ),
		'item_id'     => "user-{$user->ID}",
		'data'        => $user_data_to_export,
	);

return array(
		'data' => $data_to_export,
		'done' => true,
	);
}

/**
 * Update log when privacy request is confirmed.
 *
 * @since 4.9.6
 * @access private
 *
 * @param int $request_id ID of the request.
 */
function _wp_privacy_account_request_confirmed( $request_id ) {
	$request = wp_get_user_request_data( $request_id );

if ( ! $request ) {
		return;
	}

if ( ! in_array( $request->status, array( 'request-pending', 'request-failed' ), true ) ) {
		return;
	}

update_post_meta( $request_id, '_wp_user_request_confirmed_timestamp', time() );
	wp_update_post(
		array(
			'ID'          => $request_id,
			'post_status' => 'request-confirmed',
		)
	);
}

/**
 * Notify the site administrator via email when a request is confirmed.
 *
 * Without this, the admin would have to manually check the site to see if any
 * action was needed on their part yet.
 *
 * @since 4.9.6
 *
 * @param int $request_id The ID of the request.
 */
function _wp_privacy_send_request_confirmation_notification( $request_id ) {
	$request = wp_get_user_request_data( $request_id );

if ( ! is_a( $request, 'WP_User_Request' ) || 'request-confirmed' !== $request->status ) {
		return;
	}

$already_notified = (bool) get_post_meta( $request_id, '_wp_admin_notified', true );

if ( $already_notified ) {
		return;
	}

$manage_url         = add_query_arg( 'page', $request->action_name, admin_url( 'tools.php' ) );
	$action_description = wp_user_request_action_description( $request->action_name );

/**
	 * Filters the recipient of the data request confirmation notification.
	 *
	 * In a Multisite environment, this will default to the email address of the
	 * network admin because, by default, single site admins do not have the
	 * capabilities required to process requests. Some networks may wish to
	 * delegate those capabilities to a single-site admin, or a dedicated person
	 * responsible for managing privacy requests.
	 *
	 * @since 4.9.6
	 *
	 * @param string          $admin_email The email address of the notification recipient.
	 * @param WP_User_Request $request     The request that is initiating the notification.
	 */
	$admin_email = apply_filters( 'user_request_confirmed_email_to', get_site_option( 'admin_email' ), $request );

$email_data = array(
		'request'     => $request,
		'user_email'  => $request->email,
		'description' => $action_description,
		'manage_url'  => $manage_url,
		'sitename'    => wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ),
		'siteurl'     => home_url(),
		'admin_email' => $admin_email,
	);

/* translators: Do not translate SITENAME, USER_EMAIL, DESCRIPTION, MANAGE_URL, SITEURL; those are placeholders. */
	$email_text = __(
		'Howdy,

A user data privacy request has been confirmed on ###SITENAME###:

User: ###USER_EMAIL###
Request: ###DESCRIPTION###

You can view and manage these data privacy requests here:

###MANAGE_URL###

Regards,
All at ###SITENAME###
###SITEURL###'
	);

/**
	 * Filters the body of the user request confirmation email.
	 *
	 * The email is sent to an administrator when an user request is confirmed.
	 * The following strings have a special meaning and will get replaced dynamically:
	 *
	 * ###SITENAME###    The name of the site.
	 * ###USER_EMAIL###  The user email for the request.
	 * ###DESCRIPTION### Description of the action being performed so the user knows what the email is for.
	 * ###MANAGE_URL###  The URL to manage requests.
	 * ###SITEURL###     The URL to the site.
	 *
	 * @since 4.9.6
	 *
	 * @param string $email_text Text in the email.
	 * @param array  $email_data {
	 *     Data relating to the account action email.
	 *
	 *     @type WP_User_Request $request     User request object.
	 *     @type string          $user_email  The email address confirming a request
	 *     @type string          $description Description of the action being performed so the user knows what the email is for.
	 *     @type string          $manage_url  The link to click manage privacy requests of this type.
	 *     @type string          $sitename    The site name sending the mail.
	 *     @type string          $siteurl     The site URL sending the mail.
	 *     @type string          $admin_email The administrator email receiving the mail.
	 * }
	 */
	$content = apply_filters( 'user_confirmed_action_email_content', $email_text, $email_data );

$content = str_replace( '###SITENAME###', $email_data['sitename'], $content );
	$content = str_replace( '###USER_EMAIL###', $email_data['user_email'], $content );
	$content = str_replace( '###DESCRIPTION###', $email_data['description'], $content );
	$content = str_replace( '###MANAGE_URL###', esc_url_raw( $email_data['manage_url'] ), $content );
	$content = str_replace( '###SITEURL###', esc_url_raw( $email_data['siteurl'] ), $content );

$subject = sprintf(
		/* translators: 1: Site name. 2: Name of the confirmed action. */
		__( '[%1$s] Action Confirmed: %2$s' ),
		$email_data['sitename'],
		$action_description
	);

/**
	 * Filters the subject of the user request confirmation email.
	 *
	 * @since 4.9.8
	 *
	 * @param string $subject    The email subject.
	 * @param string $sitename   The name of the site.
	 * @param array  $email_data {
	 *     Data relating to the account action email.
	 *
	 *     @type WP_User_Request $request     User request object.
	 *     @type string          $user_email  The email address confirming a request
	 *     @type string          $description Description of the action being performed so the user knows what the email is for.
	 *     @type string          $manage_url  The link to click manage privacy requests of this type.
	 *     @type string          $sitename    The site name sending the mail.
	 *     @type string          $siteurl     The site URL sending the mail.
	 *     @type string          $admin_email The administrator email receiving the mail.
	 * }
	 */
	$subject = apply_filters( 'user_request_confirmed_email_subject', $subject, $email_data['sitename'], $email_data );

$email_sent = wp_mail( $email_data['admin_email'], $subject, $content );

if ( $email_sent ) {
		update_post_meta( $request_id, '_wp_admin_notified', true );
	}
}

/**
 * Notify the user when their erasure request is fulfilled.
 *
 * Without this, the user would never know if their data was actually erased.
 *
 * @since 4.9.6
 *
 * @param int $request_id The privacy request post ID associated with this request.
 */
function _wp_privacy_send_erasure_fulfillment_notification( $request_id ) {
	$request = wp_get_user_request_data( $request_id );

if ( ! is_a( $request, 'WP_User_Request' ) || 'request-completed' !== $request->status ) {
		return;
	}

$already_notified = (bool) get_post_meta( $request_id, '_wp_user_notified', true );

if ( $already_notified ) {
		return;
	}

/**
	 * Filters the recipient of the data erasure fulfillment notification.
	 *
	 * @since 4.9.6
	 *
	 * @param string          $user_email The email address of the notification recipient.
	 * @param WP_User_Request $request    The request that is initiating the notification.
	 */
	$user_email = apply_filters( 'user_erasure_fulfillment_email_to', $request->email, $request );

$email_data = array(
		'request'            => $request,
		'message_recipient'  => $user_email,
		'privacy_policy_url' => get_privacy_policy_url(),
		'sitename'           => wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ),
		'siteurl'            => home_url(),
	);

$subject = sprintf(
		/* translators: %s: Site name. */
		__( '[%s] Erasure Request Fulfilled' ),
		$email_data['sitename']
	);

/**
	 * Filters the subject of the email sent when an erasure request is completed.
	 *
	 * @since 4.9.8
	 *
	 * @param string $subject    The email subject.
	 * @param string $sitename   The name of the site.
	 * @param array  $email_data {
	 *     Data relating to the account action email.
	 *
	 *     @type WP_User_Request $request            User request object.
	 *     @type string          $message_recipient  The address that the email will be sent to. Defaults
	 *                                               to the value of `$request->email`, but can be changed
	 *                                               by the `user_erasure_fulfillment_email_to` filter.
	 *     @type string          $privacy_policy_url Privacy policy URL.
	 *     @type string          $sitename           The site name sending the mail.
	 *     @type string          $siteurl            The site URL sending the mail.
	 * }
	 */
	$subject = apply_filters( 'user_erasure_complete_email_subject', $subject, $email_data['sitename'], $email_data );

if ( empty( $email_data['privacy_policy_url'] ) ) {
		/* translators: Do not translate SITENAME, SITEURL; those are placeholders. */
		$email_text = __(
			'Howdy,

Your request to erase your personal data on ###SITENAME### has been completed.

If you have any follow-up questions or concerns, please contact the site administrator.

Regards,
All at ###SITENAME###
###SITEURL###'
		);
	} else {
		/* translators: Do not translate SITENAME, SITEURL, PRIVACY_POLICY_URL; those are placeholders. */
		$email_text = __(
			'Howdy,

Your request to erase your personal data on ###SITENAME### has been completed.

If you have any follow-up questions or concerns, please contact the site administrator.

For more information, you can also read our privacy policy: ###PRIVACY_POLICY_URL###

Regards,
All at ###SITENAME###
###SITEURL###'
		);
	}

/**
	 * Filters the body of the data erasure fulfillment notification.
	 *
	 * The email is sent to a user when a their data erasure request is fulfilled
	 * by an administrator.
	 *
	 * The following strings have a special meaning and will get replaced dynamically:
	 *
	 * ###SITENAME###           The name of the site.
	 * ###PRIVACY_POLICY_URL### Privacy policy page URL.
	 * ###SITEURL###            The URL to the site.
	 *
	 * @since 4.9.6
	 *
	 * @param string $email_text Text in the email.
	 * @param array  $email_data {
	 *     Data relating to the account action email.
	 *
	 *     @type WP_User_Request $request            User request object.
	 *     @type string          $message_recipient  The address that the email will be sent to. Defaults
	 *                                               to the value of `$request->email`, but can be changed
	 *                                               by the `user_erasure_fulfillment_email_to` filter.
	 *     @type string          $privacy_policy_url Privacy policy URL.
	 *     @type string          $sitename           The site name sending the mail.
	 *     @type string          $siteurl            The site URL sending the mail.
	 * }
	 */
	$content = apply_filters( 'user_confirmed_action_email_content', $email_text, $email_data );

$content = str_replace( '###SITENAME###', $email_data['sitename'], $content );
	$content = str_replace( '###PRIVACY_POLICY_URL###', $email_data['privacy_policy_url'], $content );
	$content = str_replace( '###SITEURL###', esc_url_raw( $email_data['siteurl'] ), $content );

$email_sent = wp_mail( $user_email, $subject, $content );

if ( $email_sent ) {
		update_post_meta( $request_id, '_wp_user_notified', true );
	}
}

/**
 * Return request confirmation message HTML.
 *
 * @since 4.9.6
 * @access private
 *
 * @param int $request_id The request ID being confirmed.
 * @return string $message The confirmation message.
 */
function _wp_privacy_account_request_confirmed_message( $request_id ) {
	$request = wp_get_user_request_data( $request_id );

$message = '' . __( 'Action has been confirmed.' ) . '';
	$message .= '' . __( 'The site administrator has been notified and will fulfill your request as soon as possible.' ) . '';

if ( $request && in_array( $request->action_name, _wp_privacy_action_request_types(), true ) ) {
		if ( 'export_personal_data' === $request->action_name ) {
			$message = '' . __( 'Thanks for confirming your export request.' ) . '';
			$message .= '' . __( 'The site administrator has been notified. You will receive a link to download your export via email when they fulfill your request.' ) . '';
		} elseif ( 'remove_personal_data' === $request->action_name ) {
			$message = '' . __( 'Thanks for confirming your erasure request.' ) . '';
			$message .= '' . __( 'The site administrator has been notified. You will receive an email confirmation when they erase your data.' ) . '';
		}
	}

/**
	 * Filters the message displayed to a user when they confirm a data request.
	 *
	 * @since 4.9.6
	 *
	 * @param string $message    The message to the user.
	 * @param int    $request_id The ID of the request being confirmed.
	 */
	$message = apply_filters( 'user_request_action_confirmed_message', $message, $request_id );

return $message;
}

/**
 * Create and log a user request to perform a specific action.
 *
 * Requests are stored inside a post type named `user_request` since they can apply to both
 * users on the site, or guests without a user account.
 *
 * @since 4.9.6
 *
 * @param string $email_address User email address. This can be the address of a registered or non-registered user.
 * @param string $action_name   Name of the action that is being confirmed. Required.
 * @param array  $request_data  Misc data you want to send with the verification request and pass to the actions once the request is confirmed.
 * @return int|WP_Error Returns the request ID if successful, or a WP_Error object on failure.
 */
function wp_create_user_request( $email_address = '', $action_name = '', $request_data = array() ) {
	$email_address = sanitize_email( $email_address );
	$action_name   = sanitize_key( $action_name );

if ( ! is_email( $email_address ) ) {
		return new WP_Error( 'invalid_email', __( 'Invalid email address.' ) );
	}

if ( ! $action_name ) {
		return new WP_Error( 'invalid_action', __( 'Invalid action name.' ) );
	}

$user    = get_user_by( 'email', $email_address );
	$user_id = $user && ! is_wp_error( $user ) ? $user->ID : 0;

// Check for duplicates.
	$requests_query = new WP_Query(
		array(
			'post_type'     => 'user_request',
			'post_name__in' => array( $action_name ),  // Action name stored in post_name column.
			'title'         => $email_address, // Email address stored in post_title column.
			'post_status'   => 'any',
			'fields'        => 'ids',
		)
	);

if ( $requests_query->found_posts ) {
		return new WP_Error( 'duplicate_request', __( 'A request for this email address already exists.' ) );
	}

$request_id = wp_insert_post(
		array(
			'post_author'   => $user_id,
			'post_name'     => $action_name,
			'post_title'    => $email_address,
			'post_content'  => wp_json_encode( $request_data ),
			'post_status'   => 'request-pending',
			'post_type'     => 'user_request',
			'post_date'     => current_time( 'mysql', false ),
			'post_date_gmt' => current_time( 'mysql', true ),
		),
		true
	);

return $request_id;
}

/**
 * Get action description from the name and return a string.
 *
 * @since 4.9.6
 *
 * @param string $action_name Action name of the request.
 * @return string Human readable action name.
 */
function wp_user_request_action_description( $action_name ) {
	switch ( $action_name ) {
		case 'export_personal_data':
			$description = __( 'Export Personal Data' );
			break;
		case 'remove_personal_data':
			$description = __( 'Erase Personal Data' );
			break;
		default:
			/* translators: %s: action name */
			$description = sprintf( __( 'Confirm the "%s" action' ), $action_name );
			break;
	}

/**
	 * Filters the user action description.
	 *
	 * @since 4.9.6
	 *
	 * @param string $description The default description.
	 * @param string $action_name The name of the request.
	 */
	return apply_filters( 'user_request_action_description', $description, $action_name );
}

/**
 * Send a confirmation request email to confirm an action.
 *
 * If the request is not already pending, it will be updated.
 *
 * @since 4.9.6
 *
 * @param string $request_id ID of the request created via wp_create_user_request().
 * @return bool|WP_Error True on success, `WP_Error` on failure.
 */
function wp_send_user_request( $request_id ) {
	$request_id = absint( $request_id );
	$request    = wp_get_user_request_data( $request_id );

if ( ! $request ) {
		return new WP_Error( 'invalid_request', __( 'Invalid user request.' ) );
	}

// Localize message content for user; fallback to site default for visitors.
	if ( ! empty( $request->user_id ) ) {
		$locale = get_user_locale( $request->user_id );
	} else {
		$locale = get_locale();
	}

$switched_locale = switch_to_locale( $locale );

$email_data = array(
		'request'     => $request,
		'email'       => $request->email,
		'description' => wp_user_request_action_description( $request->action_name ),
		'confirm_url' => add_query_arg(
			array(
				'action'      => 'confirmaction',
				'request_id'  => $request_id,
				'confirm_key' => wp_generate_user_request_key( $request_id ),
			),
			wp_login_url()
		),
		'sitename'    => wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ),
		'siteurl'     => home_url(),
	);

/* translators: Do not translate DESCRIPTION, CONFIRM_URL, SITENAME, SITEURL: those are placeholders. */
	$email_text = __(
		'Howdy,

A request has been made to perform the following action on your account:

###DESCRIPTION###

To confirm this, please click on the following link:
###CONFIRM_URL###

You can safely ignore and delete this email if you do not want to
take this action.

Regards,
All at ###SITENAME###
###SITEURL###'
	);

/**
	 * Filters the text of the email sent when an account action is attempted.
	 *
	 * The following strings have a special meaning and will get replaced dynamically:
	 *
	 * ###DESCRIPTION### Description of the action being performed so the user knows what the email is for.
	 * ###CONFIRM_URL### The link to click on to confirm the account action.
	 * ###SITENAME###    The name of the site.
	 * ###SITEURL###     The URL to the site.
	 *
	 * @since 4.9.6
	 *
	 * @param string $email_text Text in the email.
	 * @param array  $email_data {
	 *     Data relating to the account action email.
	 *
	 *     @type WP_User_Request $request     User request object.
	 *     @type string          $email       The email address this is being sent to.
	 *     @type string          $description Description of the action being performed so the user knows what the email is for.
	 *     @type string          $confirm_url The link to click on to confirm the account action.
	 *     @type string          $sitename    The site name sending the mail.
	 *     @type string          $siteurl     The site URL sending the mail.
	 * }
	 */
	$content = apply_filters( 'user_request_action_email_content', $email_text, $email_data );

$content = str_replace( '###DESCRIPTION###', $email_data['description'], $content );
	$content = str_replace( '###CONFIRM_URL###', esc_url_raw( $email_data['confirm_url'] ), $content );
	$content = str_replace( '###EMAIL###', $email_data['email'], $content );
	$content = str_replace( '###SITENAME###', $email_data['sitename'], $content );
	$content = str_replace( '###SITEURL###', esc_url_raw( $email_data['siteurl'] ), $content );

/* translators: Privacy data request subject. 1: Site name, 2: Name of the action */
	$subject = sprintf( __( '[%1$s] Confirm Action: %2$s' ), $email_data['sitename'], $email_data['description'] );

/**
	 * Filters the subject of the email sent when an account action is attempted.
	 *
	 * @since 4.9.6
	 *
	 * @param string $subject    The email subject.
	 * @param string $sitename   The name of the site.
	 * @param array  $email_data {
	 *     Data relating to the account action email.
	 *
	 *     @type WP_User_Request $request     User request object.
	 *     @type string          $email       The email address this is being sent to.
	 *     @type string          $description Description of the action being performed so the user knows what the email is for.
	 *     @type string          $confirm_url The link to click on to confirm the account action.
	 *     @type string          $sitename    The site name sending the mail.
	 *     @type string          $siteurl     The site URL sending the mail.
	 * }
	 */
	$subject = apply_filters( 'user_request_action_email_subject', $subject, $email_data['sitename'], $email_data );

$email_sent = wp_mail( $email_data['email'], $subject, $content );

if ( $switched_locale ) {
		restore_previous_locale();
	}

if ( ! $email_sent ) {
		return new WP_Error( 'privacy_email_error', __( 'Unable to send personal data export confirmation email.' ) );
	}

return true;
}

/**
 * Returns a confirmation key for a user action and stores the hashed version for future comparison.
 *
 * @since 4.9.6
 *
 * @param int $request_id Request ID.
 * @return string Confirmation key.
 */
function wp_generate_user_request_key( $request_id ) {
	global $wp_hasher;

// Generate something random for a confirmation key.
	$key = wp_generate_password( 20, false );

// Return the key, hashed.
	if ( empty( $wp_hasher ) ) {
		require_once ABSPATH . WPINC . '/class-phpass.php';
		$wp_hasher = new PasswordHash( 8, true );
	}

wp_update_post(
		array(
			'ID'            => $request_id,
			'post_status'   => 'request-pending',
			'post_password' => $wp_hasher->HashPassword( $key ),
		)
	);

return $key;
}

/**
 * Validate a user request by comparing the key with the request's key.
 *
 * @since 4.9.6
 *
 * @param string $request_id ID of the request being confirmed.
 * @param string $key        Provided key to validate.
 * @return bool|WP_Error WP_Error on failure, true on success.
 */
function wp_validate_user_request_key( $request_id, $key ) {
	global $wp_hasher;

$request_id = absint( $request_id );
	$request    = wp_get_user_request_data( $request_id );

if ( ! $request ) {
		return new WP_Error( 'invalid_request', __( 'Invalid request.' ) );
	}

if ( ! in_array( $request->status, array( 'request-pending', 'request-failed' ), true ) ) {
		return new WP_Error( 'expired_link', __( 'This link has expired.' ) );
	}

if ( empty( $key ) ) {
		return new WP_Error( 'invalid_key', __( 'Invalid key' ) );
	}

if ( empty( $wp_hasher ) ) {
		require_once ABSPATH . WPINC . '/class-phpass.php';
		$wp_hasher = new PasswordHash( 8, true );
	}

$key_request_time = $request->modified_timestamp;
	$saved_key        = $request->confirm_key;

if ( ! $saved_key ) {
		return new WP_Error( 'invalid_key', __( 'Invalid key' ) );
	}

if ( ! $key_request_time ) {
		return new WP_Error( 'invalid_key', __( 'Invalid action' ) );
	}

/**
	 * Filters the expiration time of confirm keys.
	 *
	 * @since 4.9.6
	 *
	 * @param int $expiration The expiration time in seconds.
	 */
	$expiration_duration = (int) apply_filters( 'user_request_key_expiration', DAY_IN_SECONDS );
	$expiration_time     = $key_request_time + $expiration_duration;

if ( ! $wp_hasher->CheckPassword( $key, $saved_key ) ) {
		return new WP_Error( 'invalid_key', __( 'Invalid key' ) );
	}

if ( ! $expiration_time || time() > $expiration_time ) {
		return new WP_Error( 'expired_key', __( 'The confirmation email has expired.' ) );
	}

return true;
}

/**
 * Return data about a user request.
 *
 * @since 4.9.6
 *
 * @param int $request_id Request ID to get data about.
 * @return WP_User_Request|false
 */
function wp_get_user_request_data( $request_id ) {
	$request_id = absint( $request_id );
	$post       = get_post( $request_id );

if ( ! $post || 'user_request' !== $post->post_type ) {
		return false;
	}

return new WP_User_Request( $post );
}

/**
 * WP_User_Request class.
 *
 * Represents user request data loaded from a WP_Post object.
 *
 * @since 4.9.6
 */
final class WP_User_Request {
	/**
	 * Request ID.
	 *
	 * @var int
	 */
	public $ID = 0;

/**
	 * User ID.
	 *
	 * @var int
	 */
	public $user_id = 0;

/**
	 * User email.
	 *
	 * @var int
	 */
	public $email = '';

/**
	 * Action name.
	 *
	 * @var string
	 */
	public $action_name = '';

/**
	 * Current status.
	 *
	 * @var string
	 */
	public $status = '';

/**
	 * Timestamp this request was created.
	 *
	 * @var int|null
	 */
	public $created_timestamp = null;

/**
	 * Timestamp this request was last modified.
	 *
	 * @var int|null
	 */
	public $modified_timestamp = null;

/**
	 * Timestamp this request was confirmed.
	 *
	 * @var int
	 */
	public $confirmed_timestamp = null;

/**
	 * Timestamp this request was completed.
	 *
	 * @var int
	 */
	public $completed_timestamp = null;

/**
	 * Misc data assigned to this request.
	 *
	 * @var array
	 */
	public $request_data = array();

/**
	 * Key used to confirm this request.
	 *
	 * @var string
	 */
	public $confirm_key = '';

/**
	 * Constructor.
	 *
	 * @since 4.9.6
	 *
	 * @param WP_Post|object $post Post object.
	 */
	public function __construct( $post ) {
		$this->ID                  = $post->ID;
		$this->user_id             = $post->post_author;
		$this->email               = $post->post_title;
		$this->action_name         = $post->post_name;
		$this->status              = $post->post_status;
		$this->created_timestamp   = strtotime( $post->post_date_gmt );
		$this->modified_timestamp  = strtotime( $post->post_modified_gmt );
		$this->confirmed_timestamp = (int) get_post_meta( $post->ID, '_wp_user_request_confirmed_timestamp', true );
		$this->completed_timestamp = (int) get_post_meta( $post->ID, '_wp_user_request_completed_timestamp', true );
		$this->request_data        = json_decode( $post->post_content, true );
		$this->confirm_key         = $post->post_password;
	}
}

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