/**
  * @Request({"email": "string"})
  */
 public function requestAction($email)
 {
     try {
         if (App::user()->isAuthenticated()) {
             return App::redirect();
         }
         if (!App::csrf()->validate()) {
             throw new Exception(__('Invalid token. Please try again.'));
         }
         if (empty($email)) {
             throw new Exception(__('Enter a valid email address.'));
         }
         if (!($user = User::findByEmail($email))) {
             throw new Exception(__('Unknown email address.'));
         }
         if ($user->isBlocked()) {
             throw new Exception(__('Your account has not been activated or is blocked.'));
         }
         $user->activation = App::get('auth.random')->generateString(32);
         $url = App::url('@user/resetpassword/confirm', ['user' => $user->username, 'key' => $user->activation], 0);
         try {
             $mail = App::mailer()->create();
             $mail->setTo($user->email)->setSubject(__('Reset password for %site%.', ['%site%' => App::module('system/site')->config('title')]))->setBody(App::view('system/user:mails/reset.php', compact('user', 'url', 'mail')), 'text/html')->send();
         } catch (\Exception $e) {
             throw new Exception(__('Unable to send confirmation link.'));
         }
         $user->save();
         return ['message' => __('Check your email for the confirmation link.')];
     } catch (Exception $e) {
         App::abort(400, $e->getMessage());
     }
 }