/**
* Only allow one session per user
*
* If the current user's session has been taken over by a newer
* session then we will destroy their session automattically and
* they will have to login again to continue.
*
* @action init
*/
function pcl_prevent_concurrent_logins()
{
if (!pcl_user_has_concurrent_sessions()) {
return;
}
$user_id = get_current_user_id();
/**
* Filter to allow certain users to have concurrent sessions when necessary
*
* @since 0.1.1
*
* @param bool $prevent
* @param int $user_id ID of the current user
*
* @return bool
*/
if (false === (bool) apply_filters('pcl_prevent_concurrent_logins', true, $user_id)) {
return;
}
$newest = max(wp_list_pluck(wp_get_all_sessions(), 'login'));
$session = pcl_get_current_session();
if ($session['login'] === $newest) {
wp_destroy_other_sessions();
/**
* Fires after a user's non-current sessions are destroyed
*
* @since 0.3.0
*
* @param int $user_id ID of the affected user
*/
do_action('pcl_destroy_other_sessions', $user_id);
} else {
wp_destroy_current_session();
/**
* Fires after a user's current session is destroyed
*
* @since 0.3.0
*
* @param int $user_id ID of the affected user
*/
do_action('pcl_destroy_current_session', $user_id);
}
}
function settings_tools()
{
if (isset($_POST['action'])) {
switch ($_POST['action']) {
case 'force_destroy_sessions':
if (0 === get_current_user_id()) {
MainWP_Helper::write(array('error' => __('Cannot get user_id', 'mainwp-child')));
}
wp_destroy_all_sessions();
$sessions = wp_get_all_sessions();
if (empty($sessions)) {
MainWP_Helper::write(array('success' => 1));
} else {
MainWP_Helper::write(array('error' => __('Cannot destroy sessions', 'mainwp-child')));
}
break;
default:
MainWP_Helper::write(array('error' => __('Invalid action', 'mainwp-child')));
}
} else {
MainWP_Helper::write(array('error' => __('Missing action', 'mainwp-child')));
}
}
<h3 id="sessions"><?php
_e('会话安全', 'dmeng');
?>
<small><?php
_e('登录状态', 'dmeng');
?>
</small></h3>
</div>
<div class="form-group">
<label for="destroy-sessions" class="col-sm-3 control-label"><?php
_e('清理会话', 'dmeng');
?>
</label>
<div class="col-sm-9">
<?php
$count_sessions = count(wp_get_all_sessions());
if ($count_sessions > 1) {
?>
<button type="submit" class="btn btn-default"><?php
printf(__('共有 %1$s 个会话，点击登出其他会话', 'dmeng'), $count_sessions);
?>
</button>
<?php
} else {
?>
<button type="button" class="btn btn-default" disabled><?php
_e('无需清理，您只有在此处登入。', 'dmeng');
?>
</button>
<?php
}