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0860bb2771
Prior to about 2013, many class methods lacked even access modifiers which made the `@access` notations that much more useful. Now that we've gotten to a point where the codebase is more mature from a maintenance perspective and we can finally remove these notations. Notable exceptions to this change include standalone functions notated as private as well as some classes still considered to represent "private" APIs. See #41452. Built from https://develop.svn.wordpress.org/trunk@41162 git-svn-id: http://core.svn.wordpress.org/trunk@41002 1a063a9b-81f0-0310-95a4-ce76da25c4cd
770 lines
19 KiB
PHP
770 lines
19 KiB
PHP
<?php
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/**
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* User API: WP_User class
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*
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* @package WordPress
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* @subpackage Users
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* @since 4.4.0
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*/
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/**
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* Core class used to implement the WP_User object.
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*
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* @since 2.0.0
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*
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* @property string $nickname
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* @property string $description
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* @property string $user_description
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* @property string $first_name
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* @property string $user_firstname
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* @property string $last_name
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* @property string $user_lastname
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* @property string $user_login
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* @property string $user_pass
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* @property string $user_nicename
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* @property string $user_email
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* @property string $user_url
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* @property string $user_registered
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* @property string $user_activation_key
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* @property string $user_status
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* @property int $user_level
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* @property string $display_name
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* @property string $spam
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* @property string $deleted
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* @property string $locale
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*/
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class WP_User {
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/**
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* User data container.
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*
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* @since 2.0.0
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* @var object
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*/
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public $data;
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/**
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* The user's ID.
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*
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* @since 2.1.0
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* @var int
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*/
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public $ID = 0;
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/**
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* The individual capabilities the user has been given.
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*
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* @since 2.0.0
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* @var array
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*/
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public $caps = array();
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/**
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* User metadata option name.
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*
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* @since 2.0.0
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* @var string
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*/
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public $cap_key;
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/**
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* The roles the user is part of.
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*
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* @since 2.0.0
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* @var array
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*/
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public $roles = array();
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/**
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* All capabilities the user has, including individual and role based.
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*
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* @since 2.0.0
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* @var array
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*/
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public $allcaps = array();
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/**
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* The filter context applied to user data fields.
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*
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* @since 2.9.0
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* @var string
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*/
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public $filter = null;
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/**
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* @static
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* @since 3.3.0
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* @var array
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*/
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private static $back_compat_keys;
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/**
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* Constructor.
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*
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* Retrieves the userdata and passes it to WP_User::init().
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*
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* @since 2.0.0
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*
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* @global wpdb $wpdb WordPress database abstraction object.
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*
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* @param int|string|stdClass|WP_User $id User's ID, a WP_User object, or a user object from the DB.
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* @param string $name Optional. User's username
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* @param int $blog_id Optional Site ID, defaults to current site.
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*/
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public function __construct( $id = 0, $name = '', $blog_id = '' ) {
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if ( ! isset( self::$back_compat_keys ) ) {
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$prefix = $GLOBALS['wpdb']->prefix;
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self::$back_compat_keys = array(
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'user_firstname' => 'first_name',
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'user_lastname' => 'last_name',
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'user_description' => 'description',
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'user_level' => $prefix . 'user_level',
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$prefix . 'usersettings' => $prefix . 'user-settings',
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$prefix . 'usersettingstime' => $prefix . 'user-settings-time',
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);
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}
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if ( $id instanceof WP_User ) {
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$this->init( $id->data, $blog_id );
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return;
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} elseif ( is_object( $id ) ) {
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$this->init( $id, $blog_id );
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return;
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}
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if ( ! empty( $id ) && ! is_numeric( $id ) ) {
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$name = $id;
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$id = 0;
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}
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if ( $id ) {
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$data = self::get_data_by( 'id', $id );
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} else {
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$data = self::get_data_by( 'login', $name );
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}
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if ( $data ) {
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$this->init( $data, $blog_id );
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} else {
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$this->data = new stdClass;
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}
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}
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/**
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* Sets up object properties, including capabilities.
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*
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* @since 3.3.0
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*
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* @param object $data User DB row object.
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* @param int $blog_id Optional. The site ID to initialize for.
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*/
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public function init( $data, $blog_id = '' ) {
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$this->data = $data;
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$this->ID = (int) $data->ID;
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$this->for_blog( $blog_id );
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}
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/**
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* Return only the main user fields
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*
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* @since 3.3.0
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* @since 4.4.0 Added 'ID' as an alias of 'id' for the `$field` parameter.
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*
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* @static
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*
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* @global wpdb $wpdb WordPress database abstraction object.
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*
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* @param string $field The field to query against: 'id', 'ID', 'slug', 'email' or 'login'.
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* @param string|int $value The field value
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* @return object|false Raw user object
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*/
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public static function get_data_by( $field, $value ) {
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global $wpdb;
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// 'ID' is an alias of 'id'.
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if ( 'ID' === $field ) {
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$field = 'id';
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}
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if ( 'id' == $field ) {
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// Make sure the value is numeric to avoid casting objects, for example,
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// to int 1.
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if ( ! is_numeric( $value ) )
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return false;
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$value = intval( $value );
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if ( $value < 1 )
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return false;
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} else {
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$value = trim( $value );
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}
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if ( !$value )
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return false;
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switch ( $field ) {
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case 'id':
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$user_id = $value;
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$db_field = 'ID';
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break;
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case 'slug':
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$user_id = wp_cache_get($value, 'userslugs');
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$db_field = 'user_nicename';
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break;
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case 'email':
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$user_id = wp_cache_get($value, 'useremail');
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$db_field = 'user_email';
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break;
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case 'login':
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$value = sanitize_user( $value );
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$user_id = wp_cache_get($value, 'userlogins');
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$db_field = 'user_login';
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break;
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default:
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return false;
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}
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if ( false !== $user_id ) {
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if ( $user = wp_cache_get( $user_id, 'users' ) )
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return $user;
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}
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if ( !$user = $wpdb->get_row( $wpdb->prepare(
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"SELECT * FROM $wpdb->users WHERE $db_field = %s", $value
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) ) )
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return false;
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update_user_caches( $user );
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return $user;
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}
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/**
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* Makes private/protected methods readable for backward compatibility.
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*
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* @since 4.3.0
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*
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* @param callable $name Method to call.
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* @param array $arguments Arguments to pass when calling.
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* @return mixed|false Return value of the callback, false otherwise.
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*/
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public function __call( $name, $arguments ) {
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if ( '_init_caps' === $name ) {
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return call_user_func_array( array( $this, $name ), $arguments );
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}
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return false;
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}
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/**
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* Magic method for checking the existence of a certain custom field.
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*
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* @since 3.3.0
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*
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* @param string $key User meta key to check if set.
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* @return bool Whether the given user meta key is set.
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*/
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public function __isset( $key ) {
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if ( 'id' == $key ) {
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_deprecated_argument( 'WP_User->id', '2.1.0',
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sprintf(
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/* translators: %s: WP_User->ID */
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__( 'Use %s instead.' ),
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'<code>WP_User->ID</code>'
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)
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);
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$key = 'ID';
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}
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if ( isset( $this->data->$key ) )
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return true;
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if ( isset( self::$back_compat_keys[ $key ] ) )
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$key = self::$back_compat_keys[ $key ];
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return metadata_exists( 'user', $this->ID, $key );
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}
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/**
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* Magic method for accessing custom fields.
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*
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* @since 3.3.0
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*
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* @param string $key User meta key to retrieve.
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* @return mixed Value of the given user meta key (if set). If `$key` is 'id', the user ID.
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*/
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public function __get( $key ) {
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if ( 'id' == $key ) {
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_deprecated_argument( 'WP_User->id', '2.1.0',
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sprintf(
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/* translators: %s: WP_User->ID */
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__( 'Use %s instead.' ),
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'<code>WP_User->ID</code>'
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)
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);
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return $this->ID;
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}
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if ( isset( $this->data->$key ) ) {
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$value = $this->data->$key;
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} else {
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if ( isset( self::$back_compat_keys[ $key ] ) )
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$key = self::$back_compat_keys[ $key ];
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$value = get_user_meta( $this->ID, $key, true );
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}
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if ( $this->filter ) {
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$value = sanitize_user_field( $key, $value, $this->ID, $this->filter );
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}
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return $value;
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}
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/**
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* Magic method for setting custom user fields.
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*
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* This method does not update custom fields in the database. It only stores
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* the value on the WP_User instance.
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*
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* @since 3.3.0
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*
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* @param string $key User meta key.
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* @param mixed $value User meta value.
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*/
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public function __set( $key, $value ) {
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if ( 'id' == $key ) {
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_deprecated_argument( 'WP_User->id', '2.1.0',
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sprintf(
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/* translators: %s: WP_User->ID */
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__( 'Use %s instead.' ),
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'<code>WP_User->ID</code>'
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)
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);
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$this->ID = $value;
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return;
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}
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$this->data->$key = $value;
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}
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/**
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* Magic method for unsetting a certain custom field.
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*
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* @since 4.4.0
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*
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* @param string $key User meta key to unset.
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*/
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public function __unset( $key ) {
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if ( 'id' == $key ) {
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_deprecated_argument( 'WP_User->id', '2.1.0',
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sprintf(
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/* translators: %s: WP_User->ID */
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__( 'Use %s instead.' ),
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'<code>WP_User->ID</code>'
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)
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);
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}
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if ( isset( $this->data->$key ) ) {
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unset( $this->data->$key );
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}
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if ( isset( self::$back_compat_keys[ $key ] ) ) {
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unset( self::$back_compat_keys[ $key ] );
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}
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}
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/**
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* Determine whether the user exists in the database.
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*
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* @since 3.4.0
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*
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* @return bool True if user exists in the database, false if not.
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*/
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public function exists() {
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return ! empty( $this->ID );
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}
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/**
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* Retrieve the value of a property or meta key.
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*
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* Retrieves from the users and usermeta table.
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*
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* @since 3.3.0
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*
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* @param string $key Property
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* @return mixed
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*/
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public function get( $key ) {
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return $this->__get( $key );
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}
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/**
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* Determine whether a property or meta key is set
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*
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* Consults the users and usermeta tables.
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*
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* @since 3.3.0
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*
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* @param string $key Property
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* @return bool
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*/
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public function has_prop( $key ) {
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return $this->__isset( $key );
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}
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/**
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* Return an array representation.
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*
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* @since 3.5.0
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*
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* @return array Array representation.
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*/
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public function to_array() {
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return get_object_vars( $this->data );
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}
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/**
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* Set up capability object properties.
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*
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* Will set the value for the 'cap_key' property to current database table
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* prefix, followed by 'capabilities'. Will then check to see if the
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* property matching the 'cap_key' exists and is an array. If so, it will be
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* used.
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*
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* @since 2.1.0
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*
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* @global wpdb $wpdb WordPress database abstraction object.
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*
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* @param string $cap_key Optional capability key
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*/
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protected function _init_caps( $cap_key = '' ) {
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global $wpdb;
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if ( empty($cap_key) )
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$this->cap_key = $wpdb->get_blog_prefix() . 'capabilities';
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else
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$this->cap_key = $cap_key;
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$this->caps = get_user_meta( $this->ID, $this->cap_key, true );
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if ( ! is_array( $this->caps ) )
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$this->caps = array();
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$this->get_role_caps();
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}
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/**
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* Retrieve all of the role capabilities and merge with individual capabilities.
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*
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* All of the capabilities of the roles the user belongs to are merged with
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* the users individual roles. This also means that the user can be denied
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* specific roles that their role might have, but the specific user isn't
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* granted permission to.
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*
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* @since 2.0.0
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*
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* @return array List of all capabilities for the user.
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*/
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public function get_role_caps() {
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$wp_roles = wp_roles();
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//Filter out caps that are not role names and assign to $this->roles
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if ( is_array( $this->caps ) )
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$this->roles = array_filter( array_keys( $this->caps ), array( $wp_roles, 'is_role' ) );
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//Build $allcaps from role caps, overlay user's $caps
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$this->allcaps = array();
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foreach ( (array) $this->roles as $role ) {
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$the_role = $wp_roles->get_role( $role );
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$this->allcaps = array_merge( (array) $this->allcaps, (array) $the_role->capabilities );
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}
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$this->allcaps = array_merge( (array) $this->allcaps, (array) $this->caps );
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return $this->allcaps;
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}
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/**
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* Add role to user.
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*
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* Updates the user's meta data option with capabilities and roles.
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*
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* @since 2.0.0
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*
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* @param string $role Role name.
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*/
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public function add_role( $role ) {
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if ( empty( $role ) ) {
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return;
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}
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$this->caps[$role] = true;
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update_user_meta( $this->ID, $this->cap_key, $this->caps );
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$this->get_role_caps();
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$this->update_user_level_from_caps();
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/**
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* Fires immediately after the user has been given a new role.
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*
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* @since 4.3.0
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*
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* @param int $user_id The user ID.
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* @param string $role The new role.
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*/
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do_action( 'add_user_role', $this->ID, $role );
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}
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/**
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* Remove role from user.
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*
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* @since 2.0.0
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*
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* @param string $role Role name.
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*/
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public function remove_role( $role ) {
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if ( !in_array($role, $this->roles) )
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return;
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unset( $this->caps[$role] );
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update_user_meta( $this->ID, $this->cap_key, $this->caps );
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$this->get_role_caps();
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$this->update_user_level_from_caps();
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/**
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* Fires immediately after a role as been removed from a user.
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*
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* @since 4.3.0
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*
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* @param int $user_id The user ID.
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* @param string $role The removed role.
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*/
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do_action( 'remove_user_role', $this->ID, $role );
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}
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/**
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* Set the role of the user.
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*
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* This will remove the previous roles of the user and assign the user the
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* new one. You can set the role to an empty string and it will remove all
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* of the roles from the user.
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*
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* @since 2.0.0
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*
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* @param string $role Role name.
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*/
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public function set_role( $role ) {
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if ( 1 == count( $this->roles ) && $role == current( $this->roles ) )
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return;
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foreach ( (array) $this->roles as $oldrole )
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unset( $this->caps[$oldrole] );
|
|
|
|
$old_roles = $this->roles;
|
|
if ( !empty( $role ) ) {
|
|
$this->caps[$role] = true;
|
|
$this->roles = array( $role => true );
|
|
} else {
|
|
$this->roles = false;
|
|
}
|
|
update_user_meta( $this->ID, $this->cap_key, $this->caps );
|
|
$this->get_role_caps();
|
|
$this->update_user_level_from_caps();
|
|
|
|
/**
|
|
* Fires after the user's role has changed.
|
|
*
|
|
* @since 2.9.0
|
|
* @since 3.6.0 Added $old_roles to include an array of the user's previous roles.
|
|
*
|
|
* @param int $user_id The user ID.
|
|
* @param string $role The new role.
|
|
* @param array $old_roles An array of the user's previous roles.
|
|
*/
|
|
do_action( 'set_user_role', $this->ID, $role, $old_roles );
|
|
}
|
|
|
|
/**
|
|
* Choose the maximum level the user has.
|
|
*
|
|
* Will compare the level from the $item parameter against the $max
|
|
* parameter. If the item is incorrect, then just the $max parameter value
|
|
* will be returned.
|
|
*
|
|
* Used to get the max level based on the capabilities the user has. This
|
|
* is also based on roles, so if the user is assigned the Administrator role
|
|
* then the capability 'level_10' will exist and the user will get that
|
|
* value.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param int $max Max level of user.
|
|
* @param string $item Level capability name.
|
|
* @return int Max Level.
|
|
*/
|
|
public function level_reduction( $max, $item ) {
|
|
if ( preg_match( '/^level_(10|[0-9])$/i', $item, $matches ) ) {
|
|
$level = intval( $matches[1] );
|
|
return max( $max, $level );
|
|
} else {
|
|
return $max;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Update the maximum user level for the user.
|
|
*
|
|
* Updates the 'user_level' user metadata (includes prefix that is the
|
|
* database table prefix) with the maximum user level. Gets the value from
|
|
* the all of the capabilities that the user has.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*/
|
|
public function update_user_level_from_caps() {
|
|
global $wpdb;
|
|
$this->user_level = array_reduce( array_keys( $this->allcaps ), array( $this, 'level_reduction' ), 0 );
|
|
update_user_meta( $this->ID, $wpdb->get_blog_prefix() . 'user_level', $this->user_level );
|
|
}
|
|
|
|
/**
|
|
* Add capability and grant or deny access to capability.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param string $cap Capability name.
|
|
* @param bool $grant Whether to grant capability to user.
|
|
*/
|
|
public function add_cap( $cap, $grant = true ) {
|
|
$this->caps[$cap] = $grant;
|
|
update_user_meta( $this->ID, $this->cap_key, $this->caps );
|
|
$this->get_role_caps();
|
|
$this->update_user_level_from_caps();
|
|
}
|
|
|
|
/**
|
|
* Remove capability from user.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param string $cap Capability name.
|
|
*/
|
|
public function remove_cap( $cap ) {
|
|
if ( ! isset( $this->caps[ $cap ] ) ) {
|
|
return;
|
|
}
|
|
unset( $this->caps[ $cap ] );
|
|
update_user_meta( $this->ID, $this->cap_key, $this->caps );
|
|
$this->get_role_caps();
|
|
$this->update_user_level_from_caps();
|
|
}
|
|
|
|
/**
|
|
* Remove all of the capabilities of the user.
|
|
*
|
|
* @since 2.1.0
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*/
|
|
public function remove_all_caps() {
|
|
global $wpdb;
|
|
$this->caps = array();
|
|
delete_user_meta( $this->ID, $this->cap_key );
|
|
delete_user_meta( $this->ID, $wpdb->get_blog_prefix() . 'user_level' );
|
|
$this->get_role_caps();
|
|
}
|
|
|
|
/**
|
|
* Whether user has capability or role name.
|
|
*
|
|
* While checking against particular roles in place of a capability is supported
|
|
* in part, this practice is discouraged as it may produce unreliable results.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @see map_meta_cap()
|
|
*
|
|
* @param string $cap Capability name.
|
|
* @param int $object_id,... Optional. ID of the specific object to check against if `$cap` is a "meta" cap.
|
|
* "Meta" capabilities, e.g. 'edit_post', 'edit_user', etc., are capabilities used
|
|
* by map_meta_cap() to map to other "primitive" capabilities, e.g. 'edit_posts',
|
|
* 'edit_others_posts', etc. The parameter is accessed via func_get_args() and passed
|
|
* to map_meta_cap().
|
|
* @return bool Whether the current user has the given capability. If `$cap` is a meta cap and `$object_id` is
|
|
* passed, whether the current user has the given meta capability for the given object.
|
|
*/
|
|
public function has_cap( $cap ) {
|
|
if ( is_numeric( $cap ) ) {
|
|
_deprecated_argument( __FUNCTION__, '2.0.0', __('Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead.') );
|
|
$cap = $this->translate_level_to_cap( $cap );
|
|
}
|
|
|
|
$args = array_slice( func_get_args(), 1 );
|
|
$args = array_merge( array( $cap, $this->ID ), $args );
|
|
$caps = call_user_func_array( 'map_meta_cap', $args );
|
|
|
|
// Multisite super admin has all caps by definition, Unless specifically denied.
|
|
if ( is_multisite() && is_super_admin( $this->ID ) ) {
|
|
if ( in_array('do_not_allow', $caps) )
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Dynamically filter a user's capabilities.
|
|
*
|
|
* @since 2.0.0
|
|
* @since 3.7.0 Added the user object.
|
|
*
|
|
* @param array $allcaps An array of all the user's capabilities.
|
|
* @param array $caps Actual capabilities for meta capability.
|
|
* @param array $args Optional parameters passed to has_cap(), typically object ID.
|
|
* @param WP_User $user The user object.
|
|
*/
|
|
$capabilities = apply_filters( 'user_has_cap', $this->allcaps, $caps, $args, $this );
|
|
|
|
// Everyone is allowed to exist.
|
|
$capabilities['exist'] = true;
|
|
|
|
// Nobody is allowed to do things they are not allowed to do.
|
|
unset( $capabilities['do_not_allow'] );
|
|
|
|
// Must have ALL requested caps.
|
|
foreach ( (array) $caps as $cap ) {
|
|
if ( empty( $capabilities[ $cap ] ) )
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Convert numeric level to level capability name.
|
|
*
|
|
* Prepends 'level_' to level number.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param int $level Level number, 1 to 10.
|
|
* @return string
|
|
*/
|
|
public function translate_level_to_cap( $level ) {
|
|
return 'level_' . $level;
|
|
}
|
|
|
|
/**
|
|
* Set the site to operate on. Defaults to the current site.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @param int $blog_id Optional. Site ID, defaults to current site.
|
|
*/
|
|
public function for_blog( $blog_id = '' ) {
|
|
global $wpdb;
|
|
if ( ! empty( $blog_id ) )
|
|
$cap_key = $wpdb->get_blog_prefix( $blog_id ) . 'capabilities';
|
|
else
|
|
$cap_key = '';
|
|
$this->_init_caps( $cap_key );
|
|
}
|
|
}
|