WordPressを読む 26 /blog/wp-includes/capabilities.php
2014/12/11
目次
- 1 定義ファイル /blog/wp-includes/capabilities.php
- 2 WP_Roles::クラス変数
- 3 WP_Roles::__construct() コンストラクタ
- 4 WP_Roles::__call()
- 5 WP_Roles::_init()
- 6 WP_Roles::reinit()
- 7 WP_Roles::add_role()
- 8 WP_Roles::remove_role()
- 9 WP_Roles::add_cap()
- 10 WP_Roles::remove_cap()
- 11 WP_Roles::get_role()
- 12 WP_Roles::get_names()
- 13 WP_Roles::is_role()
- 14 WP_Role::クラス変数
- 15 WP_Role::__construct() コンストラクタ
- 16 WP_Role::add_cap()
- 17 WP_Role::remove_cap()
- 18 WP_Role::has_cap()
- 19 WP_User::クラス変数
- 20 WP_User::__construct() コンストラクタ
- 21 WP_User::init()
- 22 WP_User::get_data_by()
- 23 WP_User:: __isset()
- 24 WP_User::__get()
- 25 WP_User::__set()
- 26 WP_User::exists()
- 27 WP_User::get()
- 28 WP_User::has_prop()
- 29 WP_User::to_array()
- 30 WP_User::_init_caps()
- 31 WP_User::get_role_caps()
- 32 WP_User::add_role()
- 33 WP_User::remove_role()
- 34 WP_User::set_role()
- 35 WP_User::level_reduction()
- 36 WP_User::update_user_level_from_caps()
- 37 WP_User::add_cap()
- 38 WP_User::remove_cap()
- 39 WP_User::remove_all_caps()
- 40 WP_User::has_cap()
- 41 WP_User::translate_level_to_cap()
- 42 WP_User::for_blog()
- 43 関数 map_meta_cap()
- 44 関数 current_user_can()
- 45 関数 current_user_can_for_blog()
- 46 関数 author_can()
- 47 関数 user_can()
- 48 関数 get_role()
- 49 関数 add_role()
- 50 関数 remove_role()
- 51 関数 get_super_admins()
- 52 関数 is_super_admin()
定義ファイル /blog/wp-includes/capabilities.php
WP_Roles::クラス変数
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 | <?php /** * WordPress Roles and Capabilities. * * @package WordPress * @subpackage User */ /** * WordPress User Roles. * * The role option is simple, the structure is organized by role name that store * the name in value of the 'name' key. The capabilities are stored as an array * in the value of the 'capability' key. * * <code> * array ( * 'rolename' => array ( * 'name' => 'rolename', * 'capabilities' => array() * ) * ) * * * @since 2.0.0 * @package WordPress * @subpackage User */ class WP_Roles { /** * List of roles and capabilities. * * @since 2.0.0 * @access public * @var array */ public $roles; /** * List of the role objects. * * @since 2.0.0 * @access public * @var array */ public $role_objects = array(); /** * List of role names. * * @since 2.0.0 * @access public * @var array */ public $role_names = array(); /** * Option name for storing role list. * * @since 2.0.0 * @access public * @var string */ public $role_key; /** * Whether to use the database for retrieval and storage. * * @since 2.1.0 * @access public * @var bool */ public $use_db = true; |
WP_Roles::__construct() コンストラクタ
1 2 3 4 5 6 7 8 | /** * Constructor * * @since 2.0.0 */ public function __construct() { $this->_init(); } |
WP_Roles::__call()
1 2 3 4 5 6 7 8 9 10 11 12 13 | /** * Make private/protected methods readable for backwards compatibility. * * @since 4.0.0 * @access public * * @param callable $name Method to call. * @param array $arguments Arguments to pass when calling. * @return mixed|bool Return value of the callback, false otherwise. */ public function __call( $name, $arguments ) { return call_user_func_array( array( $this, $name ), $arguments ); } |
WP_Roles::_init()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | /** * Set up the object properties. * * The role key is set to the current prefix for the $wpdb object with * 'user_roles' appended. If the $wp_user_roles global is set, then it will * be used and the role option will not be updated or used. * * @since 2.1.0 * @access protected * @uses $wpdb Used to get the database prefix. * @global array $wp_user_roles Used to set the 'roles' property value. */ protected function _init() { global $wpdb, $wp_user_roles; $this->role_key = $wpdb->get_blog_prefix() . 'user_roles'; if ( ! empty( $wp_user_roles ) ) { $this->roles = $wp_user_roles; $this->use_db = false; } else { $this->roles = get_option( $this->role_key ); } if ( empty( $this->roles ) ) return; $this->role_objects = array(); $this->role_names = array(); foreach ( array_keys( $this->roles ) as $role ) { $this->role_objects[$role] = new WP_Role( $role, $this->roles[$role]['capabilities'] ); $this->role_names[$role] = $this->roles[$role]['name']; } } |
WP_Roles::reinit()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | /** * Reinitialize the object * * Recreates the role objects. This is typically called only by switch_to_blog() * after switching wpdb to a new blog ID. * * @since 3.5.0 * @access public */ public function reinit() { // There is no need to reinit if using the wp_user_roles global. if ( ! $this->use_db ) return; global $wpdb; // Duplicated from _init() to avoid an extra function call. $this->role_key = $wpdb->get_blog_prefix() . 'user_roles'; $this->roles = get_option( $this->role_key ); if ( empty( $this->roles ) ) return; $this->role_objects = array(); $this->role_names = array(); foreach ( array_keys( $this->roles ) as $role ) { $this->role_objects[$role] = new WP_Role( $role, $this->roles[$role]['capabilities'] ); $this->role_names[$role] = $this->roles[$role]['name']; } } |
WP_Roles::add_role()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | /** * Add role name with capabilities to list. * * Updates the list of roles, if the role doesn't already exist. * * The capabilities are defined in the following format `array( 'read' => true );` * To explicitly deny a role a capability you set the value for that capability to false. * * @since 2.0.0 * @access public * * @param string $role Role name. * @param string $display_name Role display name. * @param array $capabilities List of role capabilities in the above format. * @return WP_Role|null WP_Role object if role is added, null if already exists. */ public function add_role( $role, $display_name, $capabilities = array() ) { if ( isset( $this->roles[$role] ) ) return; $this->roles[$role] = array( 'name' => $display_name, 'capabilities' => $capabilities ); if ( $this->use_db ) update_option( $this->role_key, $this->roles ); $this->role_objects[$role] = new WP_Role( $role, $capabilities ); $this->role_names[$role] = $display_name; return $this->role_objects[$role]; } |
WP_Roles::remove_role()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | /** * Remove role by name. * * @since 2.0.0 * @access public * * @param string $role Role name. */ public function remove_role( $role ) { if ( ! isset( $this->role_objects[$role] ) ) return; unset( $this->role_objects[$role] ); unset( $this->role_names[$role] ); unset( $this->roles[$role] ); if ( $this->use_db ) update_option( $this->role_key, $this->roles ); if ( get_option( 'default_role' ) == $role ) update_option( 'default_role', 'subscriber' ); } |
WP_Roles::add_cap()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | /** * Add capability to role. * * @since 2.0.0 * @access public * * @param string $role Role name. * @param string $cap Capability name. * @param bool $grant Optional, default is true. Whether role is capable of performing capability. */ public function add_cap( $role, $cap, $grant = true ) { if ( ! isset( $this->roles[$role] ) ) return; $this->roles[$role]['capabilities'][$cap] = $grant; if ( $this->use_db ) update_option( $this->role_key, $this->roles ); } |
WP_Roles::remove_cap()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | /** * Remove capability from role. * * @since 2.0.0 * @access public * * @param string $role Role name. * @param string $cap Capability name. */ public function remove_cap( $role, $cap ) { if ( ! isset( $this->roles[$role] ) ) return; unset( $this->roles[$role]['capabilities'][$cap] ); if ( $this->use_db ) update_option( $this->role_key, $this->roles ); } |
WP_Roles::get_role()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | /** * Retrieve role object by name. * * @since 2.0.0 * @access public * * @param string $role Role name. * @return WP_Role|null WP_Role object if found, null if the role does not exist. */ public function get_role( $role ) { if ( isset( $this->role_objects[$role] ) ) return $this->role_objects[$role]; else return null; } |
WP_Roles::get_names()
1 2 3 4 5 6 7 8 9 10 11 | /** * Retrieve list of role names. * * @since 2.0.0 * @access public * * @return array List of role names. */ public function get_names() { return $this->role_names; } |
WP_Roles::is_role()
1 2 3 4 5 6 7 8 9 10 11 12 13 | /** * Whether role name is currently in the list of available roles. * * @since 2.0.0 * @access public * * @param string $role Role name to look up. * @return bool */ public function is_role( $role ) { return isset( $this->role_names[$role] ); } } |
クラス定義完了
WP_Role::クラス変数
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | /** * WordPress Role class. * * @since 2.0.0 * @package WordPress * @subpackage User */ class WP_Role { /** * Role name. * * @since 2.0.0 * @access public * @var string */ public $name; /** * List of capabilities the role contains. * * @since 2.0.0 * @access public * @var array */ public $capabilities; |
WP_Role::__construct() コンストラクタ
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | /** * Constructor - Set up object properties. * * The list of capabilities, must have the key as the name of the capability * and the value a boolean of whether it is granted to the role. * * @since 2.0.0 * @access public * * @param string $role Role name. * @param array $capabilities List of capabilities. */ public function __construct( $role, $capabilities ) { $this->name = $role; $this->capabilities = $capabilities; } |
WP_Role::add_cap()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | /** * Assign role a capability. * * @see WP_Roles::add_cap() Method uses implementation for role. * @since 2.0.0 * @access public * * @param string $cap Capability name. * @param bool $grant Whether role has capability privilege. */ public function add_cap( $cap, $grant = true ) { global $wp_roles; if ( ! isset( $wp_roles ) ) $wp_roles = new WP_Roles(); $this->capabilities[$cap] = $grant; $wp_roles->add_cap( $this->name, $cap, $grant ); } |
WP_Role::remove_cap()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | /** * Remove capability from role. * * This is a container for {@link WP_Roles::remove_cap()} to remove the * capability from the role. That is to say, that {@link * WP_Roles::remove_cap()} implements the functionality, but it also makes * sense to use this class, because you don't need to enter the role name. * * @since 2.0.0 * @access public * * @param string $cap Capability name. */ public function remove_cap( $cap ) { global $wp_roles; if ( ! isset( $wp_roles ) ) $wp_roles = new WP_Roles(); unset( $this->capabilities[$cap] ); $wp_roles->remove_cap( $this->name, $cap ); } |
WP_Role::has_cap()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | /** * Whether role has capability. * * The capabilities is passed through the 'role_has_cap' filter. The first * parameter for the hook is the list of capabilities the class has * assigned. The second parameter is the capability name to look for. The * third and final parameter for the hook is the role name. * * @since 2.0.0 * @access public * * @param string $cap Capability name. * @return bool True, if user has capability. False, if doesn't have capability. */ public function has_cap( $cap ) { /** * Filter which capabilities a role has. * * @since 2.0.0 * * @param array $capabilities Array of role capabilities. * @param string $cap Capability name. * @param string $name Role name. */ $capabilities = apply_filters( 'role_has_cap', $this->capabilities, $cap, $this->name ); if ( !empty( $capabilities[$cap] ) ) return $capabilities[$cap]; else return false; } } |
クラス定義終了
WP_User::クラス変数
定義ファイル /blog/wp-includes/capabilities.php
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 | /** * WordPress User class. * * @since 2.0.0 * @package WordPress * @subpackage User */ class WP_User { /** * User data container. * * @since 2.0.0 * @access private * @var array */ var $data; /** * The user's ID. * * @since 2.1.0 * @access public * @var int */ public $ID = 0; /** * The individual capabilities the user has been given. * * @since 2.0.0 * @access public * @var array */ public $caps = array(); /** * User metadata option name. * * @since 2.0.0 * @access public * @var string */ public $cap_key; /** * The roles the user is part of. * * @since 2.0.0 * @access public * @var array */ public $roles = array(); /** * All capabilities the user has, including individual and role based. * * @since 2.0.0 * @access public * @var array */ public $allcaps = array(); /** * The filter context applied to user data fields. * * @since 2.9.0 * @access private * @var string */ var $filter = null; private static $back_compat_keys; |
WP_User::__construct() コンストラクタ
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | /** * Constructor * * Retrieves the userdata and passes it to {@link WP_User::init()}. * * @since 2.0.0 * @access public * * @param int|string|stdClass|WP_User $id User's ID, a WP_User object, or a user object from the DB. * @param string $name Optional. User's username * @param int $blog_id Optional Blog ID, defaults to current blog. * @return WP_User */ public function __construct( $id = 0, $name = '', $blog_id = '' ) { if ( ! isset( self::$back_compat_keys ) ) { $prefix = $GLOBALS['wpdb']->prefix; self::$back_compat_keys = array( 'user_firstname' => 'first_name', 'user_lastname' => 'last_name', 'user_description' => 'description', 'user_level' => $prefix . 'user_level', $prefix . 'usersettings' => $prefix . 'user-settings', $prefix . 'usersettingstime' => $prefix . 'user-settings-time', ); } if ( is_a( $id, 'WP_User' ) ) { $this->init( $id->data, $blog_id ); return; } elseif ( is_object( $id ) ) { $this->init( $id, $blog_id ); return; } if ( ! empty( $id ) && ! is_numeric( $id ) ) { $name = $id; $id = 0; } if ( $id ) $data = self::get_data_by( 'id', $id ); else $data = self::get_data_by( 'login', $name ); if ( $data ) $this->init( $data, $blog_id ); } |
WP_User::init()
1 2 3 4 5 6 7 8 9 10 11 12 | /** * Sets up object properties, including capabilities. * * @param object $data User DB row object * @param int $blog_id Optional. The blog id to initialize for */ public function init( $data, $blog_id = '' ) { $this->data = $data; $this->ID = (int) $data->ID; $this->for_blog( $blog_id ); } |
WP_User::get_data_by()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | /** * Return only the main user fields * * @since 3.3.0 * * @param string $field The field to query against: 'id', 'slug', 'email' or 'login' * @param string|int $value The field value * @return object Raw user object */ public static function get_data_by( $field, $value ) { global $wpdb; if ( 'id' == $field ) { // Make sure the value is numeric to avoid casting objects, for example, // to int 1. if ( ! is_numeric( $value ) ) return false; $value = intval( $value ); if ( $value < 1 ) return false; } else { $value = trim( $value ); } if ( !$value ) return false; switch ( $field ) { case 'id': $user_id = $value; $db_field = 'ID'; break; case 'slug': $user_id = wp_cache_get($value, 'userslugs'); $db_field = 'user_nicename'; break; case 'email': $user_id = wp_cache_get($value, 'useremail'); $db_field = 'user_email'; break; case 'login': $value = sanitize_user( $value ); $user_id = wp_cache_get($value, 'userlogins'); $db_field = 'user_login'; break; default: return false; } if ( false !== $user_id ) { if ( $user = wp_cache_get( $user_id, 'users' ) ) return $user; } if ( !$user = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->users WHERE $db_field = %s", $value ) ) ) return false; update_user_caches( $user ); return $user; } |
WP_User:: __isset()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | /** * Magic method for checking the existence of a certain custom field * * @since 3.3.0 */ public function __isset( $key ) { if ( 'id' == $key ) { _deprecated_argument( 'WP_User->id', '2.1', __( 'Use <code>WP_User->ID</code> instead.' ) ); $key = 'ID'; } if ( isset( $this->data->$key ) ) return true; if ( isset( self::$back_compat_keys[ $key ] ) ) $key = self::$back_compat_keys[ $key ]; return metadata_exists( 'user', $this->ID, $key ); } |
WP_User::__get()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | /** * Magic method for accessing custom fields * * @since 3.3.0 */ public function __get( $key ) { if ( 'id' == $key ) { _deprecated_argument( 'WP_User->id', '2.1', __( 'Use <code>WP_User->ID</code> instead.' ) ); return $this->ID; } if ( isset( $this->data->$key ) ) { $value = $this->data->$key; } else { if ( isset( self::$back_compat_keys[ $key ] ) ) $key = self::$back_compat_keys[ $key ]; $value = get_user_meta( $this->ID, $key, true ); } if ( $this->filter ) { $value = sanitize_user_field( $key, $value, $this->ID, $this->filter ); } return $value; } |
WP_User::__set()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | /** * Magic method for setting custom fields * * @since 3.3.0 */ public function __set( $key, $value ) { if ( 'id' == $key ) { _deprecated_argument( 'WP_User->id', '2.1', __( 'Use <code>WP_User->ID</code> instead.' ) ); $this->ID = $value; return; } $this->data->$key = $value; } |
WP_User::exists()
1 2 3 4 5 6 7 8 9 10 11 | /** * Determine whether the user exists in the database. * * @since 3.4.0 * @access public * * @return bool True if user exists in the database, false if not. */ public function exists() { return ! empty( $this->ID ); } |
WP_User::get()
1 2 3 4 5 6 7 8 9 10 11 12 | /** * Retrieve the value of a property or meta key. * * Retrieves from the users and usermeta table. * * @since 3.3.0 * * @param string $key Property */ public function get( $key ) { return $this->__get( $key ); } |
WP_User::has_prop()
1 2 3 4 5 6 7 8 9 10 11 12 | /** * Determine whether a property or meta key is set * * Consults the users and usermeta tables. * * @since 3.3.0 * * @param string $key Property */ public function has_prop( $key ) { return $this->__isset( $key ); } |
WP_User::to_array()
1 2 3 4 5 6 7 8 9 10 | /** * Return an array representation. * * @since 3.5.0 * * @return array Array representation. */ public function to_array() { return get_object_vars( $this->data ); } |
WP_User::_init_caps()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | /** * Set up capability object properties. * * Will set the value for the 'cap_key' property to current database table * prefix, followed by 'capabilities'. Will then check to see if the * property matching the 'cap_key' exists and is an array. If so, it will be * used. * * @access protected * @since 2.1.0 * * @param string $cap_key Optional capability key */ function _init_caps( $cap_key = '' ) { global $wpdb; if ( empty($cap_key) ) $this->cap_key = $wpdb->get_blog_prefix() . 'capabilities'; else $this->cap_key = $cap_key; $this->caps = get_user_meta( $this->ID, $this->cap_key, true ); if ( ! is_array( $this->caps ) ) $this->caps = array(); $this->get_role_caps(); } |
WP_User::get_role_caps()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | /** * Retrieve all of the role capabilities and merge with individual capabilities. * * All of the capabilities of the roles the user belongs to are merged with * the users individual roles. This also means that the user can be denied * specific roles that their role might have, but the specific user isn't * granted permission to. * * @since 2.0.0 * @uses $wp_roles * @access public * * @return array List of all capabilities for the user. */ public function get_role_caps() { global $wp_roles; if ( ! isset( $wp_roles ) ) $wp_roles = new WP_Roles(); //Filter out caps that are not role names and assign to $this->roles if ( is_array( $this->caps ) ) $this->roles = array_filter( array_keys( $this->caps ), array( $wp_roles, 'is_role' ) ); //Build $allcaps from role caps, overlay user's $caps $this->allcaps = array(); foreach ( (array) $this->roles as $role ) { $the_role = $wp_roles->get_role( $role ); $this->allcaps = array_merge( (array) $this->allcaps, (array) $the_role->capabilities ); } $this->allcaps = array_merge( (array) $this->allcaps, (array) $this->caps ); return $this->allcaps; } |
WP_User::add_role()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | /** * Add role to user. * * Updates the user's meta data option with capabilities and roles. * * @since 2.0.0 * @access public * * @param string $role Role name. */ public function add_role( $role ) { $this->caps[$role] = true; update_user_meta( $this->ID, $this->cap_key, $this->caps ); $this->get_role_caps(); $this->update_user_level_from_caps(); } |
WP_User::remove_role()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | /** * Remove role from user. * * @since 2.0.0 * @access public * * @param string $role Role name. */ public function remove_role( $role ) { if ( !in_array($role, $this->roles) ) return; unset( $this->caps[$role] ); update_user_meta( $this->ID, $this->cap_key, $this->caps ); $this->get_role_caps(); $this->update_user_level_from_caps(); } |
WP_User::set_role()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | /** * Set the role of the user. * * This will remove the previous roles of the user and assign the user the * new one. You can set the role to an empty string and it will remove all * of the roles from the user. * * @since 2.0.0 * @access public * * @param string $role Role name. */ public function set_role( $role ) { if ( 1 == count( $this->roles ) && $role == current( $this->roles ) ) return; foreach ( (array) $this->roles as $oldrole ) 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 ); } |
WP_User::level_reduction()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | /** * 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; } } |
WP_User::update_user_level_from_caps()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | /** * 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 */ 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 ); } |
WP_User::add_cap()
1 2 3 4 5 6 7 8 9 10 11 12 13 | /** * 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 ); } |
WP_User::remove_cap()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | /** * 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 ); } |
WP_User::remove_all_caps()
1 2 3 4 5 6 7 8 9 10 11 12 13 | /** * Remove all of the capabilities of the user. * * @since 2.1.0 * @access public */ 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(); } |
WP_User::has_cap()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | /** * Whether user has capability or role name. * * This is useful for looking up whether the user has a specific role * assigned to the user. The second optional parameter can also be used to * check for capabilities against a specific object, such as a post or user. * * @since 2.0.0 * @access public * * @param string|int $cap Capability or role name to search. * @return bool True, if user has capability; false, if user does not have capability. */ 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 role'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; } |
WP_User::translate_level_to_cap()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | /** * 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; } |
WP_User::for_blog()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | /** * Set the blog to operate on. Defaults to the current blog. * * @since 3.0.0 * * @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 ); } } |
関数 map_meta_cap()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 | /** * Map meta capabilities to primitive capabilities. * * This does not actually compare whether the user ID has the actual capability, * just what the capability or capabilities are. Meta capability list value can * be 'delete_user', 'edit_user', 'remove_user', 'promote_user', 'delete_post', * 'delete_page', 'edit_post', 'edit_page', 'read_post', or 'read_page'. * * @since 2.0.0 * * @param string $cap Capability name. * @param int $user_id User ID. * @return array Actual capabilities for meta capability. */ function map_meta_cap( $cap, $user_id ) { $args = array_slice( func_get_args(), 2 ); $caps = array(); switch ( $cap ) { case 'remove_user': $caps[] = 'remove_users'; break; case 'promote_user': $caps[] = 'promote_users'; break; case 'edit_user': case 'edit_users': // Allow user to edit itself if ( 'edit_user' == $cap && isset( $args[0] ) && $user_id == $args[0] ) break; // If multisite these caps are allowed only for super admins. if ( is_multisite() && !is_super_admin( $user_id ) ) $caps[] = 'do_not_allow'; else $caps[] = 'edit_users'; // edit_user maps to edit_users. break; case 'delete_post': case 'delete_page': $post = get_post( $args[0] ); if ( 'revision' == $post->post_type ) { $post = get_post( $post->post_parent ); } $post_type = get_post_type_object( $post->post_type ); if ( ! $post_type->map_meta_cap ) { $caps[] = $post_type->cap->$cap; // Prior to 3.1 we would re-call map_meta_cap here. if ( 'delete_post' == $cap ) $cap = $post_type->cap->$cap; break; } // If the post author is set and the user is the author... if ( $post->post_author && $user_id == $post->post_author ) { // If the post is published... if ( 'publish' == $post->post_status ) { $caps[] = $post_type->cap->delete_published_posts; } elseif ( 'trash' == $post->post_status ) { if ( 'publish' == get_post_meta( $post->ID, '_wp_trash_meta_status', true ) ) { $caps[] = $post_type->cap->delete_published_posts; } } else { // If the post is draft... $caps[] = $post_type->cap->delete_posts; } } else { // The user is trying to edit someone else's post. $caps[] = $post_type->cap->delete_others_posts; // The post is published, extra cap required. if ( 'publish' == $post->post_status ) { $caps[] = $post_type->cap->delete_published_posts; } elseif ( 'private' == $post->post_status ) { $caps[] = $post_type->cap->delete_private_posts; } } break; // edit_post breaks down to edit_posts, edit_published_posts, or // edit_others_posts case 'edit_post': case 'edit_page': $post = get_post( $args[0] ); if ( empty( $post ) ) break; if ( 'revision' == $post->post_type ) { $post = get_post( $post->post_parent ); } $post_type = get_post_type_object( $post->post_type ); if ( ! $post_type->map_meta_cap ) { $caps[] = $post_type->cap->$cap; // Prior to 3.1 we would re-call map_meta_cap here. if ( 'edit_post' == $cap ) $cap = $post_type->cap->$cap; break; } // If the post author is set and the user is the author... if ( $post->post_author && $user_id == $post->post_author ) { // If the post is published... if ( 'publish' == $post->post_status ) { $caps[] = $post_type->cap->edit_published_posts; } elseif ( 'trash' == $post->post_status ) { if ( 'publish' == get_post_meta( $post->ID, '_wp_trash_meta_status', true ) ) { $caps[] = $post_type->cap->edit_published_posts; } } else { // If the post is draft... $caps[] = $post_type->cap->edit_posts; } } else { // The user is trying to edit someone else's post. $caps[] = $post_type->cap->edit_others_posts; // The post is published, extra cap required. if ( 'publish' == $post->post_status ) { $caps[] = $post_type->cap->edit_published_posts; } elseif ( 'private' == $post->post_status ) { $caps[] = $post_type->cap->edit_private_posts; } } break; case 'read_post': case 'read_page': $post = get_post( $args[0] ); if ( 'revision' == $post->post_type ) { $post = get_post( $post->post_parent ); } $post_type = get_post_type_object( $post->post_type ); if ( ! $post_type->map_meta_cap ) { $caps[] = $post_type->cap->$cap; // Prior to 3.1 we would re-call map_meta_cap here. if ( 'read_post' == $cap ) $cap = $post_type->cap->$cap; break; } $status_obj = get_post_status_object( $post->post_status ); if ( $status_obj->public ) { $caps[] = $post_type->cap->read; break; } if ( $post->post_author && $user_id == $post->post_author ) { $caps[] = $post_type->cap->read; } elseif ( $status_obj->private ) { $caps[] = $post_type->cap->read_private_posts; } else { $caps = map_meta_cap( 'edit_post', $user_id, $post->ID ); } break; case 'publish_post': $post = get_post( $args[0] ); $post_type = get_post_type_object( $post->post_type ); $caps[] = $post_type->cap->publish_posts; break; case 'edit_post_meta': case 'delete_post_meta': case 'add_post_meta': $post = get_post( $args[0] ); $caps = map_meta_cap( 'edit_post', $user_id, $post->ID ); $meta_key = isset( $args[ 1 ] ) ? $args[ 1 ] : false; if ( $meta_key && has_filter( "auth_post_meta_{$meta_key}" ) ) { /** * Filter whether the user is allowed to add post meta to a post. * * The dynamic portion of the hook name, $meta_key, refers to the * meta key passed to map_meta_cap(). * * @since 3.3.0 * * @param bool $allowed Whether the user can add the post meta. Default false. * @param string $meta_key The meta key. * @param int $post_id Post ID. * @param int $user_id User ID. * @param string $cap Capability name. * @param array $caps User capabilities. */ $allowed = apply_filters( "auth_post_meta_{$meta_key}", false, $meta_key, $post->ID, $user_id, $cap, $caps ); if ( ! $allowed ) $caps[] = $cap; } elseif ( $meta_key && is_protected_meta( $meta_key, 'post' ) ) { $caps[] = $cap; } break; case 'edit_comment': $comment = get_comment( $args[0] ); if ( empty( $comment ) ) break; $post = get_post( $comment->comment_post_ID ); $caps = map_meta_cap( 'edit_post', $user_id, $post->ID ); break; case 'unfiltered_upload': if ( defined('ALLOW_UNFILTERED_UPLOADS') && ALLOW_UNFILTERED_UPLOADS && ( !is_multisite() || is_super_admin( $user_id ) ) ) $caps[] = $cap; else $caps[] = 'do_not_allow'; break; case 'unfiltered_html' : // Disallow unfiltered_html for all users, even admins and super admins. if ( defined( 'DISALLOW_UNFILTERED_HTML' ) && DISALLOW_UNFILTERED_HTML ) $caps[] = 'do_not_allow'; elseif ( is_multisite() && ! is_super_admin( $user_id ) ) $caps[] = 'do_not_allow'; else $caps[] = $cap; break; case 'edit_files': case 'edit_plugins': case 'edit_themes': // Disallow the file editors. if ( defined( 'DISALLOW_FILE_EDIT' ) && DISALLOW_FILE_EDIT ) $caps[] = 'do_not_allow'; elseif ( defined( 'DISALLOW_FILE_MODS' ) && DISALLOW_FILE_MODS ) $caps[] = 'do_not_allow'; elseif ( is_multisite() && ! is_super_admin( $user_id ) ) $caps[] = 'do_not_allow'; else $caps[] = $cap; break; case 'update_plugins': case 'delete_plugins': case 'install_plugins': case 'upload_plugins': case 'update_themes': case 'delete_themes': case 'install_themes': case 'upload_themes': case 'update_core': // Disallow anything that creates, deletes, or updates core, plugin, or theme files. // Files in uploads are excepted. if ( defined( 'DISALLOW_FILE_MODS' ) && DISALLOW_FILE_MODS ) { $caps[] = 'do_not_allow'; } elseif ( is_multisite() && ! is_super_admin( $user_id ) ) { $caps[] = 'do_not_allow'; } elseif ( 'upload_themes' === $cap ) { $caps[] = 'install_themes'; } elseif ( 'upload_plugins' === $cap ) { $caps[] = 'install_plugins'; } else { $caps[] = $cap; } break; case 'activate_plugins': $caps[] = $cap; if ( is_multisite() ) { // update_, install_, and delete_ are handled above with is_super_admin(). $menu_perms = get_site_option( 'menu_items', array() ); if ( empty( $menu_perms['plugins'] ) ) $caps[] = 'manage_network_plugins'; } break; case 'delete_user': case 'delete_users': // If multisite only super admins can delete users. if ( is_multisite() && ! is_super_admin( $user_id ) ) $caps[] = 'do_not_allow'; else $caps[] = 'delete_users'; // delete_user maps to delete_users. break; case 'create_users': if ( !is_multisite() ) $caps[] = $cap; elseif ( is_super_admin() || get_site_option( 'add_new_users' ) ) $caps[] = $cap; else $caps[] = 'do_not_allow'; break; case 'manage_links' : if ( get_option( 'link_manager_enabled' ) ) $caps[] = $cap; else $caps[] = 'do_not_allow'; break; case 'customize' : $caps[] = 'edit_theme_options'; break; default: // Handle meta capabilities for custom post types. $post_type_meta_caps = _post_type_meta_capabilities(); if ( isset( $post_type_meta_caps[ $cap ] ) ) { $args = array_merge( array( $post_type_meta_caps[ $cap ], $user_id ), $args ); return call_user_func_array( 'map_meta_cap', $args ); } // If no meta caps match, return the original cap. $caps[] = $cap; } /** * Filter a user's capabilities depending on specific context and/or privilege. * * @since 2.8.0 * * @param array $caps Returns the user's actual capabilities. * @param string $cap Capability name. * @param int $user_id The user ID. * @param array $args Adds the context to the cap. Typically the object ID. */ return apply_filters( 'map_meta_cap', $caps, $cap, $user_id, $args ); } |
関数 current_user_can()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | /** * Whether current user has capability or role. * * @since 2.0.0 * * @param string $capability Capability or role name. * @return bool */ function current_user_can( $capability ) { $current_user = wp_get_current_user(); if ( empty( $current_user ) ) return false; $args = array_slice( func_get_args(), 1 ); $args = array_merge( array( $capability ), $args ); return call_user_func_array( array( $current_user, 'has_cap' ), $args ); } |
関数 current_user_can_for_blog()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | /** * Whether current user has a capability or role for a given blog. * * @since 3.0.0 * * @param int $blog_id Blog ID * @param string $capability Capability or role name. * @return bool */ function current_user_can_for_blog( $blog_id, $capability ) { if ( is_multisite() ) switch_to_blog( $blog_id ); $current_user = wp_get_current_user(); if ( empty( $current_user ) ) return false; $args = array_slice( func_get_args(), 2 ); $args = array_merge( array( $capability ), $args ); $can = call_user_func_array( array( $current_user, 'has_cap' ), $args ); if ( is_multisite() ) restore_current_blog(); return $can; } |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | /** * Whether author of supplied post has capability or role. * * @since 2.9.0 * * @param int|object $post Post ID or post object. * @param string $capability Capability or role name. * @return bool */ function author_can( $post, $capability ) { if ( !$post = get_post($post) ) return false; $author = get_userdata( $post->post_author ); if ( ! $author ) return false; $args = array_slice( func_get_args(), 2 ); $args = array_merge( array( $capability ), $args ); return call_user_func_array( array( $author, 'has_cap' ), $args ); } |
関数 user_can()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | /** * Whether a particular user has capability or role. * * @since 3.1.0 * * @param int|object $user User ID or object. * @param string $capability Capability or role name. * @return bool */ function user_can( $user, $capability ) { if ( ! is_object( $user ) ) $user = get_userdata( $user ); if ( ! $user || ! $user->exists() ) return false; $args = array_slice( func_get_args(), 2 ); $args = array_merge( array( $capability ), $args ); return call_user_func_array( array( $user, 'has_cap' ), $args ); } |
関数 get_role()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | /** * Retrieve role object. * * @see WP_Roles::get_role() Uses method to retrieve role object. * @since 2.0.0 * * @param string $role Role name. * @return WP_Role|null WP_Role object if found, null if the role does not exist. */ function get_role( $role ) { global $wp_roles; if ( ! isset( $wp_roles ) ) $wp_roles = new WP_Roles(); return $wp_roles->get_role( $role ); } |
関数 add_role()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | /** * Add role, if it does not exist. * * @see WP_Roles::add_role() Uses method to add role. * @since 2.0.0 * * @param string $role Role name. * @param string $display_name Display name for role. * @param array $capabilities List of capabilities, e.g. array( 'edit_posts' => true, 'delete_posts' => false ); * @return WP_Role|null WP_Role object if role is added, null if already exists. */ function add_role( $role, $display_name, $capabilities = array() ) { global $wp_roles; if ( ! isset( $wp_roles ) ) $wp_roles = new WP_Roles(); return $wp_roles->add_role( $role, $display_name, $capabilities ); } |
関数 remove_role()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | /** * Remove role, if it exists. * * @see WP_Roles::remove_role() Uses method to remove role. * @since 2.0.0 * * @param string $role Role name. */ function remove_role( $role ) { global $wp_roles; if ( ! isset( $wp_roles ) ) $wp_roles = new WP_Roles(); $wp_roles->remove_role( $role ); } |
関数 get_super_admins()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | /** * Retrieve a list of super admins. * * @since 3.0.0 * * @uses $super_admins Super admins global variable, if set. * * @return array List of super admin logins */ function get_super_admins() { global $super_admins; if ( isset($super_admins) ) return $super_admins; else return get_site_option( 'site_admins', array('admin') ); } |
関数 is_super_admin()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | /** * Determine if user is a site admin. * * @since 3.0.0 * * @param int $user_id (Optional) The ID of a user. Defaults to the current user. * @return bool True if the user is a site admin. */ function is_super_admin( $user_id = false ) { if ( ! $user_id || $user_id == get_current_user_id() ) $user = wp_get_current_user(); else $user = get_userdata( $user_id ); if ( ! $user || ! $user->exists() ) return false; if ( is_multisite() ) { $super_admins = get_super_admins(); if ( is_array( $super_admins ) && in_array( $user->user_login, $super_admins ) ) return true; } else { if ( $user->has_cap('delete_users') ) return true; } return false; } |