e 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 the user has a specific capability. * * While checking against a role 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 $object_id,... Optional. ID of a specific object to check against if `$cap` is a "meta" capability. * Meta capabilities such as `edit_post` and `edit_user` are capabilities used by * by the `map_meta_cap()` function to map to primitive capabilities that a user or * role has, such as `edit_posts` and `edit_others_posts`. * @return bool Whether the user has the given capability, or, if `$object_id` is passed, whether the user has * the given capability for that object. */ public function has_cap( $cap ) { if ( is_numeric( $cap ) ) { _deprecated_argument( __FUNCTION__, '2.0.0', __( 'Usage of user levels is deprecated. Use 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 * @deprecated 4.9.0 Use WP_User::for_site() * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $blog_id Optional. Site ID, defaults to current site. */ public function for_blog( $blog_id = '' ) { _deprecated_function( __METHOD__, '4.9.0', 'WP_User::for_site()' ); $this->for_site( $blog_id ); } /** * Sets the site to operate on. Defaults to the current site. * * @since 4.9.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $site_id Site ID to initialize user capabilities for. Default is the current site. */ public function for_site( $site_id = '' ) { global $wpdb; if ( ! empty( $site_id ) ) { $this->site_id = absint( $site_id ); } else { $this->site_id = get_current_blog_id(); } $this->cap_key = $wpdb->get_blog_prefix( $this->site_id ) . 'capabilities'; $this->caps = $this->get_caps_data(); $this->get_role_caps(); } /** * Gets the ID of the site for which the user's capabilities are currently initialized. * * @since 4.9.0 * * @return int Site ID. */ public function get_site_id() { return $this->site_id; } /** * Gets the available user capabilities data. * * @since 4.9.0 * * @return array User capabilities array. */ private function get_caps_data() { $caps = get_user_meta( $this->ID, $this->cap_key, true ); if ( ! is_array( $caps ) ) { return array(); } return $caps; } }