feature #32912 [Mailer] Add support for the profiler (fabpot)

This PR was merged into the 4.4 branch.

Discussion
----------

[Mailer] Add support for the profiler

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no     <!-- see https://symfony.com/bc -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->
| Fixed tickets | closes #31592
| License       | MIT
| Doc PR        | n/a

Web profiler for the Mailer.

Commits
-------

f152314e28 [Mailer] added support for the profiler

Author: fabpot

CHANGELOG.md

@@ -4,6 +4,7 @@ CHANGELOG
 4.4.0
 -----
 
+ * Added `MessageDataCollector`
  * Added `MessageEvents` and `MessageLoggerListener` to allow collecting sent emails
  * [BC BREAK] `TransportInterface` has a new `getName()` method
  * [BC BREAK] Classes `AbstractApiTransport` and `AbstractHttpTransport` moved under `Transport` sub-namespace.

DataCollector/MessageDataCollector.php

@@ -0,0 +1,60 @@
+<?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\Mailer\DataCollector;
+
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\DataCollector\DataCollector;
+use Symfony\Component\Mailer\Event\MessageEvents;
+use Symfony\Component\Mailer\EventListener\MessageLoggerListener;
+
+/**
+ * @author Fabien Potencier <[email protected]>
+ */
+class MessageDataCollector extends DataCollector
+{
+    private $events;
+
+    public function __construct(MessageLoggerListener $logger)
+    {
+        $this->events = $logger->getEvents();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function collect(Request $request, Response $response, \Exception $exception = null)
+    {
+        $this->data['events'] = $this->events;
+    }
+
+    public function getEvents(): MessageEvents
+    {
+        return $this->data['events'];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        $this->data = [];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return 'mailer';
+    }
+}

Event/MessageEvents.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\Mailer\Event;
 
+use Symfony\Component\Mime\RawMessage;
+
 /**
  * @author Fabien Potencier <[email protected]>
  */
@@ -48,4 +50,18 @@ public function getEvents(string $name = null): array
 
         return $events;
     }
+
+    /**
+     * @return RawMessage[]
+     */
+    public function getMessages(string $name = null): array
+    {
+        $events = $this->getEvents($name);
+        $messages = [];
+        foreach ($events as $event) {
+            $messages[] = $event->getMessage();
+        }
+
+        return $messages;
+    }
 }

MessageDataCollector.php

@@ -0,0 +1,60 @@
+<?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\Mailer\DataCollector;
+
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\DataCollector\DataCollector;
+use Symfony\Component\Mailer\Event\MessageEvents;
+use Symfony\Component\Mailer\EventListener\MessageLoggerListener;
+
+/**
+ * @author Fabien Potencier <[email protected]>
+ */
+class MessageDataCollector extends DataCollector
+{
+    private $events;
+
+    public function __construct(MessageLoggerListener $logger)
+    {
+        $this->events = $logger->getEvents();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function collect(Request $request, Response $response, \Exception $exception = null)
+    {
+        $this->data['events'] = $this->events;
+    }
+
+    public function getEvents(): MessageEvents
+    {
+        return $this->data['events'];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function reset()
+    {
+        $this->data = [];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return 'mailer';
+    }
+}

MessageEvents.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\Mailer\Event;
 
+use Symfony\Component\Mime\RawMessage;
+
 /**
  * @author Fabien Potencier <[email protected]>
  */
@@ -48,4 +50,18 @@ public function getEvents(string $name = null): array
 
         return $events;
     }
+
+    /**
+     * @return RawMessage[]
+     */
+    public function getMessages(string $name = null): array
+    {
+        $events = $this->getEvents($name);
+        $messages = [];
+        foreach ($events as $event) {
+            $messages[] = $event->getMessage();
+        }
+
+        return $messages;
+    }
 }