Created
July 3, 2018 20:06
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Prevent Concurrent Sessions in Wordpress, leveraging WP_Session_Tokens and wp_destroy_other_sessions() / wp_destroy_current_sessions().
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| /** | |
| * No Current Sessions | |
| * Simple class to prevent concurrent user sessions. | |
| */ | |
| class NoConcurrentSessions { | |
| function __construct() { | |
| add_action( 'init', array( $this, 'only_one' ) ); | |
| } | |
| /** | |
| * Helper to determine if current users | |
| * has concurrent sessions | |
| * | |
| * @return boolean | |
| */ | |
| function has_current_session() { | |
| return ( is_user_logged_in() && count( wp_get_all_sessions() ) > 1 ); | |
| } | |
| /** | |
| * Helper to get current user's session array | |
| * | |
| * @return array | |
| */ | |
| function get_current_session() { | |
| $sessions = WP_Session_Tokens::get_instance( get_current_user_id() ); | |
| return $sessions->get( wp_get_session_token() ); | |
| } | |
| /** | |
| * Logic to prevent concurrent user sessions/logins | |
| */ | |
| function only_one() { | |
| if ( ! $this->has_current_session() ) { | |
| return; | |
| } | |
| $user_id = get_current_user_id(); | |
| $newest = max( wp_list_pluck( wp_get_all_sessions(), 'login' ) ); | |
| $session = $this->get_current_session(); | |
| if ( $session['login'] === $newest ) { | |
| wp_destroy_other_sessions(); | |
| } else { | |
| wp_destroy_current_session(); | |
| } | |
| } | |
| } | |
| new NoConcurrentSessions(); |
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