Initial Commit

.gitignore

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+vendor/
+composer.lock
+phpunit.xml

Readme.md

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+# Symfony Mailer for Microsoft
+
+Use this bridge to send Emails with `symfony/mailer` and Microsoft Graph API. Supported Features:
+
+
+
+| Field       | Supported |
+|-------------|-----------|
+| Subject     | ✓         |
+| Return-Path | ✕         |
+| Sender      | ✓         |
+| From        | ✕         |
+| Reply-To    | ✕         |
+| To          | ✓         |
+| Cc          | ✓         |
+| Bcc         | ✓         |
+| Priority    | ✕         |
+| Text        | ✓         |
+| HTML        | ✕         |
+| Attachments | ✓         |
+
+
+## Configuration
+
+Extend your `services.yaml`configuration
+
+      PMDevelopment\Mailer\Bridge\Microsoft\Transport\GraphTransportFactory:
+        tags:
+          - { name: mailer.transport_factory }
+
+
+Add required Parameters to `.env`
+
+    MAILER_DSN=microsoft+graph://clientId:clientSecret@tenantId
+
+

Transport/GraphClient.php

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+<?php
+
+namespace PMDevelopment\Mailer\Bridge\Microsoft\Transport;
+
+use Microsoft\Graph\Graph;
+use Symfony\Component\Mailer\Transport\Dsn;
+
+class GraphClient
+{
+    private Graph $graph;
+
+    private string $clientId;
+    private string $clientSecret;
+    private string $tenantId;
+
+    public function __construct(string $accessToken, Dsn $dsn)
+    {
+        $this->graph = new Graph();
+        $this->graph->setAccessToken($accessToken);
+
+        $this->clientId = $dsn->getUser();
+        $this->clientSecret = $dsn->getPassword();
+        $this->tenantId = $dsn->getHost();
+    }
+
+    public function getGraph(): Graph
+    {
+        return $this->graph;
+    }
+
+    public function getClientId(): string
+    {
+        return $this->clientId;
+    }
+
+    public function getClientSecret(): string
+    {
+        return $this->clientSecret;
+    }
+
+    public function getTenantId(): string
+    {
+        return $this->tenantId;
+    }
+
+}

Transport/GraphSendMailTransport.php

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+<?php
+
+namespace PMDevelopment\Mailer\Bridge\Microsoft\Transport;
+
+use GuzzleHttp\Client;
+use Microsoft\Graph\Graph;
+use Psr\Log\LoggerInterface;
+use RuntimeException;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Mailer\Exception\HttpTransportException;
+use Symfony\Component\Mailer\Exception\RuntimeException as MailerRuntimeException;
+use Symfony\Component\Mailer\SentMessage;
+use Symfony\Component\Mailer\Transport\AbstractTransport;
+use Symfony\Component\Mime\Address;
+use Symfony\Component\Mime\MessageConverter;
+use Symfony\Component\Mime\Part\DataPart;
+use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+use Throwable;
+
+class GraphSendMailTransport extends AbstractTransport
+{
+    private GraphClient $client;
+
+    public function __construct(GraphClient $client, EventDispatcherInterface $dispatcher = null, LoggerInterface $logger = null)
+    {
+        $this->client = $client;
+
+        parent::__construct($dispatcher, $logger);
+    }
+
+
+    protected function doSend(SentMessage $message): void
+    {
+        $graph = $this->client->getGraph();
+
+        try {
+            $email = MessageConverter::toEmail($message->getOriginalMessage());
+        } catch (Throwable $e) {
+            throw new MailerRuntimeException(sprintf('Unable to send message with the "%s" transport: ', __CLASS__) . $e->getMessage(), 0, $e);
+        }
+
+        $mailBody = [
+            'Message' => [
+                'attachments'   => [],
+                'bccRecipients' => $this->getArrayFromAddresses($email->getBcc()),
+                'body'          => [
+                    'contentType' => 'text',
+                    'content'     => $email->getTextBody(),
+                ],
+                'ccRecipients'  => $this->getArrayFromAddresses($email->getCc()),
+                'subject'       => $email->getSubject(),
+                'toRecipients'  => $this->getArrayFromAddresses($email->getTo()),
+            ],
+        ];
+
+        foreach ($email->getAttachments() as $attachment) {
+            $mailBody['Message']['attachments'][] = [
+                '@odata.type'  => '#microsoft.graph.fileAttachment',
+                'contentType'  => 'text/plain',
+                'contentBytes' => base64_encode($attachment->getBody()),
+                'name'         => $attachment->getPreparedHeaders()->getHeaderParameter('Content-Disposition', 'name'),
+            ];
+        }
+
+
+        $result = $graph->createRequest(Request::METHOD_POST, sprintf('/users/%s/sendMail', $message->getEnvelope()->getSender()->getAddress()))
+            ->attachBody($mailBody)
+            ->execute();
+
+        if (Response::HTTP_ACCEPTED !== $result->getStatus()) {
+            throw new MailerRuntimeException(sprintf('Sending mail failed with status %d', $result->getStatus()));
+        }
+    }
+
+    public function __toString()
+    {
+        return sprintf('microsoft+graph://%s:%s@%s', $this->client->getClientId(), $this->client->getClientSecret(), $this->client->getTenantId());
+    }
+
+    private function getArrayFromAddresses(array $addresses)
+    {
+        return array_map(function (Address $address) {
+            return [
+                'emailAddress' => [
+                    'address' => $address->getAddress(),
+                ],
+            ];
+        }, $addresses);
+    }
+}

Transport/GraphTransportFactory.php

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+<?php
+
+namespace PMDevelopment\Mailer\Bridge\Microsoft\Transport;
+
+use GuzzleHttp\Client;
+use Microsoft\Graph\Graph;
+use RuntimeException;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Mailer\Exception\IncompleteDsnException;
+use Symfony\Component\Mailer\Exception\UnsupportedSchemeException;
+use Symfony\Component\Mailer\Transport\AbstractTransportFactory;
+use Symfony\Component\Mailer\Transport\Dsn;
+use Symfony\Component\Mailer\Transport\TransportInterface;
+use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
+
+class GraphTransportFactory extends AbstractTransportFactory
+{
+    public function __construct(EventDispatcherInterface $eventDispatcher, LoggerInterface $logger = null)
+    {
+        parent::__construct($eventDispatcher, null, $logger);
+    }
+
+
+    public function create(Dsn $dsn): TransportInterface
+    {
+        $client = new Client();
+
+        $loginUrl = sprintf('https://login.microsoftonline.com/%s/oauth2/v2.0/token', $dsn->getHost());
+
+        $loginFormParameters = [
+            'client_id'     => $dsn->getUser(),
+            'client_secret' => $dsn->getPassword(),
+            'grant_type'    => 'client_credentials',
+            'scope'         => 'https://graph.microsoft.com/.default',
+        ];
+
+        $request = $client->post($loginUrl, [
+            'form_params' => $loginFormParameters,
+        ]);
+
+        $response = json_decode($request->getBody()->getContents(), true);
+        if (false === array_key_exists('access_token', $response)) {
+            throw new RuntimeException('Key "access_token" not found in %s', implode(',', array_keys($response)));
+        }
+
+        return new GraphSendMailTransport(new GraphClient($response['access_token'], $dsn), $this->dispatcher, $this->logger);
+    }
+
+
+    protected function getSupportedSchemes(): array
+    {
+        return ['microsoft+graph'];
+    }
+
+
+}

composer.json

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+{
+    "name": "pmdevelopment/microsoft-symfony-mailer",
+    "description": "Microsoft Graph API bridge for symfony mailer",
+    "keywords": [],
+    "homepage": "https://pmdevelopment.de",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Sven Joder",
+            "email": "[email protected]"
+        }
+    ],
+    "require": {
+        "php": "^7.4|^8.1",
+        "guzzlehttp/guzzle": "^6.0|^7.0",
+        "microsoft/microsoft-graph": "^1.66",
+        "symfony/event-dispatcher-contracts": "*",
+        "symfony/mailer": "^4.4.21|^5.2.6|^6.0",
+        "symfony/symfony": "^4.4|^5.4|^6.0"
+    },
+    "require-dev": {
+        "symfony/http-client": "^4.4|^5.0|^6.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "PMDevelopment\\Mailer\\Bridge\\Microsoft\\": ""
+        },
+        "exclude-from-classmap": [
+            "/Tests/"
+        ]
+    },
+    "minimum-stability": "dev"
+}