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<?php
/**
* Core User API
*
* @package WordPress
* @subpackage Users
*/
/**
* Authenticate user 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.
*
* @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) ) {
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();
/**
* Filter 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 the user using the username and password.
*
* @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>'
);
}
/**
* Filter 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;
}
/**
* 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() ) {
/**
* Filter 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 );
if ( $spammed )
return new WP_Error( 'spammer_account', __( '<strong>ERROR</strong>: Your account has been marked as a spammer.' ) );
}
return $user;
}
/**
* Validate 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 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 int 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 $where" );
/**
* Filter the number of posts a user has written.
*
* @since 2.7.0
* @since 4.1.0 Added `$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
*
* @return int The current user's ID
*/
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' );
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
$result = false;
/**
* Filter a specific user option value.
*
* The dynamic portion of the hook name, `$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 {@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 blogs a user belongs to.
*
* @since 3.0.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $user_id User ID
* @param bool $all Whether to retrieve all blogs, or only blogs that are not
* marked as deleted, archived, or spam.
* @return array A list of the user's blogs. An empty array if the user doesn't exist
* or belongs to no blogs.
*/
function get_blogs_of_user( $user_id, $all = false ) {
global $wpdb;
$user_id = (int) $user_id;
// Logged out users can't have blogs
if ( empty( $user_id ) )
return array();
$keys = get_user_meta( $user_id );
if ( empty( $keys ) )
return array();
if ( ! is_multisite() ) {
$blog_id = get_current_blog_id();
$blogs = array( $blog_id => new stdClass );
$blogs[ $blog_id ]->userblog_id = $blog_id;
$blogs[ $blog_id ]->blogname = get_option('blogname');
$blogs[ $blog_id ]->domain = '';
$blogs[ $blog_id ]->path = '';
$blogs[ $blog_id ]->site_id = 1;
$blogs[ $blog_id ]->siteurl = get_option('siteurl');
$blogs[ $blog_id ]->archived = 0;
$blogs[ $blog_id ]->spam = 0;
$blogs[ $blog_id ]->deleted = 0;
return $blogs;
}
$blogs = array();
if ( isset( $keys[ $wpdb->base_prefix . 'capabilities' ] ) && defined( 'MULTISITE' ) ) {
$blog = get_blog_details( 1 );
if ( $blog && isset( $blog->domain ) && ( $all || ( ! $blog->archived && ! $blog->spam && ! $blog->deleted ) ) ) {
$blogs[ 1 ] = (object) array(
'userblog_id' => 1,
'blogname' => $blog->blogname,
'domain' => $blog->domain,
'path' => $blog->path,
'site_id' => $blog->site_id,
'siteurl' => $blog->siteurl,
'archived' => $blog->archived,
'mature' => $blog->mature,
'spam' => $blog->spam,
'deleted' => $blog->deleted,
);
}
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;
$blog_id = str_replace( array( $wpdb->base_prefix, '_capabilities' ), '', $key );
if ( ! is_numeric( $blog_id ) )
continue;
$blog_id = (int) $blog_id;
$blog = get_blog_details( $blog_id );
if ( $blog && isset( $blog->domain ) && ( $all || ( ! $blog->archived && ! $blog->spam && ! $blog->deleted ) ) ) {
$blogs[ $blog_id ] = (object) array(
'userblog_id' => $blog_id,
'blogname' => $blog->blogname,
'domain' => $blog->domain,
'path' => $blog->path,
'site_id' => $blog->site_id,
'siteurl' => $blog->siteurl,
'archived' => $blog->archived,
'mature' => $blog->mature,
'spam' => $blog->spam,
'deleted' => $blog->deleted,
);
}
}
/**
* Filter the list of blogs a user belongs to.
*
* @since MU
*
* @param array $blogs An array of blog objects belonging to the user.
* @param int $user_id User ID.
* @param bool $all Whether the returned blogs array should contain all blogs, including
* those marked 'deleted', 'archived', or 'spam'. Default false.
*/
return apply_filters( 'get_blogs_of_user', $blogs, $user_id, $all );
}
/**
* Find out whether a user is a member of a given blog.
*
* @since MU 1.1
*
* @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_blog_details 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_blog_details( $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;
}
/**
* Add meta data field to a user.
*
* Post meta data is called "Custom Fields" on the Administration Screens.
*
* @since 3.0.0
* @link https://codex.wordpress.org/Function_Reference/add_user_meta
*
* @param int $user_id User ID.
* @param string $meta_key Metadata name.
* @param mixed $meta_value Metadata value.
* @param bool $unique Optional, default is false. Whether the same key should not be added.
* @return int|false Meta ID on success, false on failure.
*/
function add_user_meta($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://codex.wordpress.org/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://codex.wordpress.org/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://codex.wordpress.org/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.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $strategy 'time' or 'memory'
* @return array Includes a grand total and an array of counts indexed by role strings.
*/
function count_users($strategy = 'time') {
global $wpdb;
// Initialize
$id = get_current_blog_id();
$blog_prefix = $wpdb->get_blog_prefix($id);
$result = array();
if ( 'time' == $strategy ) {
$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 $wpdb->usermeta WHERE meta_key = '{$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 $wpdb->usermeta WHERE meta_key = '{$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;
}
if ( is_multisite() ) {
$result['avail_roles']['none'] = 0;
}
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 object $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 $for_user_id Optional. User ID to set up global data.
*/
function setup_userdata($for_user_id = '') {
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
*
* @global int $blog_id
*
* @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 table column to display. If the selected item is empty
* then the 'user_login' will be displayed in parentheses.
* Accepts user fields. 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.
* }
* @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' => $GLOBALS['blog_id'], 'who' => '', 'include_selected' => false,
'option_none_value' => -1
);
$defaults['selected'] = is_author() ? get_query_var( 'author' ) : 0;
$r = wp_parse_args( $args, $defaults );
$show = $r['show'];
$show_option_all = $r['show_option_all'];
$show_option_none = $r['show_option_none'];
$option_none_value = $r['option_none_value'];
$query_args = wp_array_slice_assoc( $r, array( 'blog_id', 'include', 'exclude', 'orderby', 'order', 'who' ) );
$query_args['fields'] = array( 'ID', 'user_login', $show );
/**
* Filter the query arguments for the user drop-down.
*
* @since 4.4.0
*
* @param array $query_args The query arguments for wp_dropdown_users().
* @param array $r The default arguments for wp_dropdown_users().
*/
$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";
}
$found_selected = false;
foreach ( (array) $users as $user ) {
$user->ID = (int) $user->ID;
$_selected = selected( $user->ID, $r['selected'], false );
if ( $_selected ) {
$found_selected = true;
}
$display = ! empty( $user->$show ) ? $user->$show : '('. $user->user_login . ')';
$output .= "\t<option value='$user->ID'$_selected>" . esc_html( $display ) . "</option>\n";
}
if ( $r['include_selected'] && ! $found_selected && ( $r['selected'] > 0 ) ) {
$user = get_userdata( $r['selected'] );
$_selected = selected( $user->ID, $r['selected'], false );
$display = ! empty( $user->$show ) ? $user->$show : '('. $user->user_login . ')';
$output .= "\t<option value='$user->ID'$_selected>" . esc_html( $display ) . "</option>\n";
}
$output .= "</select>";
}
/**
* Filter 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 wp-includes/post.php */
$value = apply_filters( "edit_{$field}", $value, $user_id );
} else {
/**
* Filter a user field value in the 'edit' context.
*
* The dynamic portion of the hook name, `$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 wp-includes/post.php */
$value = apply_filters( "pre_{$field}", $value );
} else {
/**
* Filter the value of a user field in the 'db' context.
*
* The dynamic portion of the hook name, `$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 wp-includes/post.php */
$value = apply_filters( $field, $value, $user_id, $context );
} else {
/**
* Filter the value of a user field in a standard context.
*
* The dynamic portion of the hook name, `$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 object|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 );
}
/**
* Checks whether the given username exists.
*
* @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 ) {
if ( $user = get_user_by( 'login', $username ) ) {
return $user->ID;
}
return false;
}
/**
* Checks whether the given email exists.
*
* @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 ) {
if ( $user = get_user_by( 'email', $email) ) {
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 ) );
/**
* Filter 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', '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 installs. See wp_get_user_contact_methods().
*
* @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 the user's username.
* @type string $nickname The user's nickname.
* Default is the 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 $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 frontend. Default true.
* @type string $role User's role.
* }
* @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 );
/**
* Filter 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!' ) );
}
/**
* Filter 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();
/**
* Filter 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'];
/**
* Filter 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'];
/**
* Filter 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'];
/**
* Filter 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'];
/**
* Filter 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'];
/**
* Filter 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'];
}
/**
* Filter 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'];
/**
* Filter 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['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'];
$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 ) {
if ( $user_email !== $old_user_data->user_email ) {
$data['user_activation_key'] = '';
}
$wpdb->update( $wpdb->users, $data, compact( 'ID' ) );
$user_id = (int) $ID;
} else {
$wpdb->insert( $wpdb->users, $data + compact( 'user_login' ) );
$user_id = (int) $wpdb->insert_id;
}
$user = new WP_User( $user_id );
/**
* Filter a user's meta values and keys before the user is created 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 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 $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 object $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 mixed $userdata An array of user data or a user object of type stdClass or WP_User.
* @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
*/
function wp_update_user($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( $userdata['user_pass'] );
/**
* Filter whether to send the password change email.
*
* @since 4.3.0
*
* @see wp_insert_user() For `$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'] !== $userdata['user_email'] ) {
/**
* Filter whether to send the email change email.
*
* @since 4.3.0
*
* @see wp_insert_user() For `$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' );
// 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' ) );
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'],
'subject' => __( '[%s] Notice of Password Change' ),
'message' => $pass_change_text,
'headers' => '',
);
/**
* Filter 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 old email.
* - ###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###', get_option( 'blogname' ), $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, EMAIL, SITENAME, SITEURL: those are placeholders. */
$email_change_text = __( 'Hi ###USERNAME###,
This notice confirms that your email was changed on ###SITENAME###.
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'],
'subject' => __( '[%s] Notice of Email Change' ),
'message' => $email_change_text,
'headers' => '',
);
/**
* Filter 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.
* - ###EMAIL### The old email.
* - ###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( '###EMAIL###', $user['user_email'], $email_change_email['message'] );
$email_change_email['message'] = str_replace( '###SITENAME###', get_option( 'blogname' ), $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'] );
}
}
// 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 wp-includes/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 {@see 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', 'comment_shortcuts', 'admin_color', 'use_ssl', 'show_admin_bar_front' );
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' )
);
}
/**
* Filter 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.
*
* @since 2.9.0
* @access private
*/
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 ! " ? $ % ^ & ).' );
/**
* Filter 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;
/**
* Fires before a new password is retrieved.
*
* @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 );
/**
* Filter whether to allow a password to be reset.
*
* @since 2.7.0
*
* @param bool true 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', true, $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 );
}
/**
* Filter 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;
}
$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;
/**
* Filter 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 object $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 object $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 );
/**
* Filter 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 wp-includes/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 );
/**
* Filter 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->get_error_code() )
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;
}
/**
* Initiate 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
*
* @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), 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.
*
* This function returns an empty array when used on Multisite.
*
* @since 4.4.0
*
* @return array Array of user IDs.
*/
function wp_get_users_with_no_role() {
global $wpdb;
if ( is_multisite() ) {
return array();
}
$prefix = $wpdb->get_blog_prefix();
$regex = implode( '|', wp_roles()->get_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;
}
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