[9.x] Support AWS SES with IAM Assume Role

.github/workflows/tests.yml

@@ -143,6 +143,9 @@ jobs:
 
       - name: Execute tests
         run: vendor/bin/phpunit --verbose
+        env:
+          AWS_ACCESS_KEY_ID: random_key
+          AWS_SECRET_ACCESS_KEY: random_secret
 
       - name: Store artifacts
         uses: actions/upload-artifact@v2

composer.json

@@ -92,6 +92,7 @@
         "phpstan/phpstan": "^1.0",
         "predis/predis": "^1.1.9",
         "phpunit/phpunit": "^9.5.8",
+        "symfony/amazon-mailer": "^6.0",
         "symfony/cache": "^6.0"
     },
     "provide": {

src/Illuminate/Mail/MailManager.php

@@ -243,8 +243,8 @@ protected function createSesTransport(array $config)
         return $factory->create(new Dsn(
             'ses+api',
             'default',
-            $config['key'],
-            $config['secret'],
+            $config['key'] ?? null,
+            $config['secret'] ?? null,
             $config['port'] ?? null,
             $config
         ));

tests/Mail/MailSesTransportTest.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace Illuminate\Tests\Mail;
+
+use Illuminate\Config\Repository;
+use Illuminate\Container\Container;
+use Illuminate\Mail\MailManager;
+use PHPUnit\Framework\TestCase;
+
+class MailSesTransportTest extends TestCase
+{
+    public function testGetTransport()
+    {
+        $container = new Container;
+
+        $container->singleton('config', function () {
+            return new Repository([
+                'services.ses' => [
+                    'region' => 'us-east-1',
+                ],
+            ]);
+        });
+
+        $manager = new MailManager($container);
+
+        $transport = $manager->createSymfonyTransport(['transport' => 'ses']);
+
+        $this->assertSame('ses+api://random_key@us-east-1', $transport->__toString());
+    }
+}