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4ddb22bd09
See #33701. Built from https://develop.svn.wordpress.org/trunk@34412 git-svn-id: http://core.svn.wordpress.org/trunk@34376 1a063a9b-81f0-0310-95a4-ce76da25c4cd
762 lines
18 KiB
PHP
762 lines
18 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 string $display_name
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* @property string $spam
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* @property string $deleted
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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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* @access public
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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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* @access public
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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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* @access public
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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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* @access public
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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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* @access public
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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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* @access private
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* @var string
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*/
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var $filter = null;
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/**
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* @static
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* @access private
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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 {@link WP_User::init()}.
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*
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* @since 2.0.0
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* @access public
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*
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* @global wpdb $wpdb
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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 Blog ID, defaults to current blog.
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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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* @param object $data User DB row object
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* @param int $blog_id Optional. The blog 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
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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 backwards compatibility.
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*
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* @since 4.3.0
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* @access public
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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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* @access public
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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' == $key ) {
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_deprecated_argument( 'WP_User->id', '2.1', __( 'Use <code>WP_User->ID</code> instead.' ) );
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$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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* @access public
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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', __( 'Use <code>WP_User->ID</code> instead.' ) );
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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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* @access public
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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' == $key ) {
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_deprecated_argument( 'WP_User->id', '2.1', __( 'Use <code>WP_User->ID</code> instead.' ) );
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$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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* @access public
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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' == $key ) {
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_deprecated_argument( 'WP_User->id', '2.1', __( 'Use <code>WP_User->ID</code> instead.' ) );
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$key = 'ID';
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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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* @access public
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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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* @access protected
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* @since 2.1.0
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*
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* @global wpdb $wpdb
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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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$this->get_role_caps();
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}
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/**
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* Retrieve all of the role capabilities and merge with individual capabilities.
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*
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* All of the capabilities of the roles the user belongs to are merged with
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* the users individual roles. This also means that the user can be denied
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* specific roles that their role might have, but the specific user isn't
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* granted permission to.
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*
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* @since 2.0.0
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* @access public
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*
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* @return array List of all capabilities for the user.
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*/
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public function get_role_caps() {
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$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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* @access public
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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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* @access public
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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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* @access public
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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] );
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$old_roles = $this->roles;
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if ( !empty( $role ) ) {
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$this->caps[$role] = true;
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$this->roles = array( $role => true );
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} else {
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$this->roles = false;
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}
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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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|
|
|
/**
|
|
* 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
|
|
* @access public
|
|
*
|
|
* @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
|
|
* @access public
|
|
*
|
|
* @global wpdb $wpdb
|
|
*/
|
|
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
|
|
* @access public
|
|
*
|
|
* @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
|
|
* @access public
|
|
*
|
|
* @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
|
|
* @access public
|
|
*
|
|
* @global wpdb $wpdb
|
|
*/
|
|
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
|
|
* @access public
|
|
*
|
|
* @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', __('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.
|
|
*/
|
|
// Must have ALL requested caps
|
|
$capabilities = apply_filters( 'user_has_cap', $this->allcaps, $caps, $args, $this );
|
|
$capabilities['exist'] = true; // Everyone is allowed to exist
|
|
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
|
|
* @access public
|
|
*
|
|
* @param int $level Level number, 1 to 10.
|
|
* @return string
|
|
*/
|
|
public function translate_level_to_cap( $level ) {
|
|
return 'level_' . $level;
|
|
}
|
|
|
|
/**
|
|
* Set the blog to operate on. Defaults to the current blog.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @global wpdb $wpdb
|
|
*
|
|
* @param int $blog_id Optional Blog ID, defaults to current blog.
|
|
*/
|
|
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 );
|
|
}
|
|
}
|