[Security][Notifier] Added integration of Login Link with the Notifier component

Author: wouterj

LoginLink/LoginLinkNotification.php

@@ -0,0 +1,73 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Security\Http\LoginLink;
+
+use Symfony\Bridge\Twig\Mime\NotificationEmail;
+use Symfony\Component\Notifier\Message\EmailMessage;
+use Symfony\Component\Notifier\Message\SmsMessage;
+use Symfony\Component\Notifier\Notification\EmailNotificationInterface;
+use Symfony\Component\Notifier\Notification\Notification;
+use Symfony\Component\Notifier\Notification\SmsNotificationInterface;
+use Symfony\Component\Notifier\Recipient\EmailRecipientInterface;
+use Symfony\Component\Notifier\Recipient\SmsRecipientInterface;
+
+/**
+ * Use this notification to ease sending login link
+ * emails/SMS using the Notifier component.
+ *
+ * @author Wouter de Jong <[email protected]>
+ *
+ * @experimental in 5.2
+ */
+class LoginLinkNotification extends Notification implements EmailNotificationInterface, SmsNotificationInterface
+{
+    private $loginLinkDetails;
+
+    public function __construct(LoginLinkDetails $loginLinkDetails, string $subject, array $channels = [])
+    {
+        parent::__construct($subject, $channels);
+
+        $this->loginLinkDetails = $loginLinkDetails;
+    }
+
+    public function asEmailMessage(EmailRecipientInterface $recipient, string $transport = null): ?EmailMessage
+    {
+        if (!class_exists(NotificationEmail::class)) {
+            throw new \LogicException(sprintf('The "%s" method requires "symfony/twig-bridge:>4.4".', __METHOD__));
+        }
+
+        $email = NotificationEmail::asPublicEmail()
+            ->to($recipient->getEmail())
+            ->subject($this->getSubject())
+            ->content($this->getContent() ?: $this->getDefaultContent('button below'))
+            ->action('Sign in', $this->loginLinkDetails->getUrl())
+        ;
+
+        return new EmailMessage($email);
+    }
+
+    public function asSmsMessage(SmsRecipientInterface $recipient, string $transport = null): ?SmsMessage
+    {
+        return new SmsMessage($recipient->getPhone(), $this->getDefaultContent('link').' '.$this->loginLinkDetails->getUrl());
+    }
+
+    private function getDefaultContent(string $target): string
+    {
+        $duration = $this->loginLinkDetails->getExpiresAt()->getTimestamp() - time();
+        $durationString = floor($duration / 60).' minute'.($duration > 60 ? 's' : '');
+        if (($hours = $duration / 3600) >= 1) {
+            $durationString = floor($hours).' hour'.($hours >= 2 ? 's' : '');
+        }
+
+        return sprintf('Click on the %s to confirm you want to sign in. This link will expire in %s.', $target, $durationString);
+    }
+}