Adding IMip scheduling which uses ownClouds mail delivery

apps/dav/lib/caldav/schedule/imipplugin.php

@@ -0,0 +1,110 @@
+<?php
+
+namespace OCA\DAV\CalDAV\Schedule;
+
+use OCP\ILogger;
+use OCP\Mail\IMailer;
+use Sabre\DAV;
+use Sabre\VObject\ITip;
+use Sabre\CalDAV\Schedule\IMipPlugin as SabreIMipPlugin;
+/**
+ * iMIP handler.
+ *
+ * This class is responsible for sending out iMIP messages. iMIP is the
+ * email-based transport for iTIP. iTIP deals with scheduling operations for
+ * iCalendar objects.
+ *
+ * If you want to customize the email that gets sent out, you can do so by
+ * extending this class and overriding the sendMessage method.
+ *
+ * @copyright Copyright (C) 2007-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class IMipPlugin extends SabreIMipPlugin {
+
+	/** @var IMailer */
+	private $mailer;
+
+	/** @var ILogger */
+	private $logger;
+
+	/**
+	 * Creates the email handler.
+	 *
+	 * @param IMailer $mailer
+	 */
+	function __construct(IMailer $mailer, ILogger $logger) {
+		parent::__construct('');
+		$this->mailer = $mailer;
+		$this->logger = $logger;
+	}
+
+	/**
+	 * Event handler for the 'schedule' event.
+	 *
+	 * @param ITip\Message $iTipMessage
+	 * @return void
+	 */
+	function schedule(ITip\Message $iTipMessage) {
+
+		// Not sending any emails if the system considers the update
+		// insignificant.
+		if (!$iTipMessage->significantChange) {
+			if (!$iTipMessage->scheduleStatus) {
+				$iTipMessage->scheduleStatus = '1.0;We got the message, but it\'s not significant enough to warrant an email';
+			}
+			return;
+		}
+
+		$summary = $iTipMessage->message->VEVENT->SUMMARY;
+
+		if (parse_url($iTipMessage->sender, PHP_URL_SCHEME) !== 'mailto') {
+			return;
+		}
+
+		if (parse_url($iTipMessage->recipient, PHP_URL_SCHEME) !== 'mailto') {
+			return;
+		}
+
+		$sender = substr($iTipMessage->sender, 7);
+		$recipient = substr($iTipMessage->recipient, 7);
+
+		$senderName = ($iTipMessage->senderName) ? $iTipMessage->senderName : null;
+		$recipientName = ($iTipMessage->recipientName) ? $iTipMessage->recipientName : null;
+
+		$subject = 'SabreDAV iTIP message';
+		switch (strtoupper($iTipMessage->method)) {
+			case 'REPLY' :
+				$subject = 'Re: ' . $summary;
+				break;
+			case 'REQUEST' :
+				$subject = $summary;
+				break;
+			case 'CANCEL' :
+				$subject = 'Cancelled: ' . $summary;
+				break;
+		}
+
+		$contentType = 'text/calendar; charset=UTF-8; method=' . $iTipMessage->method;
+
+		$message = $this->mailer->createMessage();
+
+		$message->setReplyTo([$sender => $senderName])
+			->setTo([$recipient => $recipientName])
+			->setSubject($subject)
+			->setBody($iTipMessage->message->serialize(), $contentType);
+		try {
+			$failed = $this->mailer->send($message);
+			if ($failed) {
+				$this->logger->error('Unable to deliver message to {failed}', ['app' => 'dav', 'failed' =>  implode(', ', $failed)]);
+				$iTipMessage->scheduleStatus = '5.0; EMail delivery failed';
+			}
+			$iTipMessage->scheduleStatus = '1.1; Scheduling message is sent via iMip';
+		} catch(\Exception $ex) {
+			$this->logger->logException($ex, ['app' => 'dav']);
+			$iTipMessage->scheduleStatus = '5.0; EMail delivery failed';
+		}
+	}
+
+}

apps/dav/lib/server.php

@@ -2,12 +2,12 @@
 
 namespace OCA\DAV;
 
+use OCA\DAV\CalDAV\Schedule\IMipPlugin;
 use OCA\DAV\Connector\Sabre\Auth;
 use OCA\DAV\Connector\Sabre\BlockLegacyClientPlugin;
 use OCA\DAV\Files\CustomPropertiesBackend;
 use OCP\IRequest;
 use Sabre\DAV\Auth\Plugin;
-use Sabre\HTTP\Util;
 
 class Server {
 
@@ -19,6 +19,7 @@ class Server {
 		$this->baseUri = $baseUri;
 		$logger = \OC::$server->getLogger();
 		$dispatcher = \OC::$server->getEventDispatcher();
+		$mailer = \OC::$server->getMailer();
 
 		$root = new RootCollection();
 		$this->server = new \OCA\DAV\Connector\Sabre\Server($root);
@@ -49,9 +50,8 @@ class Server {
 		// calendar plugins
 		$this->server->addPlugin(new \Sabre\CalDAV\Plugin());
 		$this->server->addPlugin(new \Sabre\CalDAV\ICSExportPlugin());
-		$senderEmail = \OCP\Util::getDefaultEmailAddress('no-reply');
 		$this->server->addPlugin(new \Sabre\CalDAV\Schedule\Plugin());
-		$this->server->addPlugin(new \Sabre\CalDAV\Schedule\IMipPlugin($senderEmail));
+		$this->server->addPlugin(new IMipPlugin($mailer, $logger));
 		$this->server->addPlugin(new \Sabre\CalDAV\SharingPlugin());
 		$this->server->addPlugin(new \Sabre\CalDAV\Subscriptions\Plugin());
 		$this->server->addPlugin(new \Sabre\CalDAV\Notifications\Plugin());

apps/dav/tests/unit/caldav/schedule/imipplugintest.php

@@ -0,0 +1,91 @@
+<?php
+/**
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ *
+ * @copyright Copyright (c) 2015, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OCA\DAV\Tests\Unit\CalDAV\Schedule;
+
+use OC\Mail\Mailer;
+use OCA\DAV\CalDAV\Schedule\IMipPlugin;
+use OCP\ILogger;
+use Sabre\VObject\Component\VCalendar;
+use Sabre\VObject\ITip\Message;
+use Test\TestCase;
+
+class IMipPluginTest extends TestCase {
+
+	public function testDelivery() {
+		$mailMessage = new \OC\Mail\Message(new \Swift_Message());
+		/** @var Mailer | \PHPUnit_Framework_MockObject_MockObject $mailer */
+		$mailer = $this->getMockBuilder('OC\Mail\Mailer')->disableOriginalConstructor()->getMock();
+		$mailer->method('createMessage')->willReturn($mailMessage);
+		$mailer->expects($this->once())->method('send');
+		/** @var ILogger | \PHPUnit_Framework_MockObject_MockObject $logger */
+		$logger = $this->getMockBuilder('OC\Log')->disableOriginalConstructor()->getMock();
+
+		$plugin = new IMipPlugin($mailer, $logger);
+		$message = new Message();
+		$message->method = 'REQUEST';
+		$message->message = new VCalendar();
+		$message->message->add('VEVENT', [
+			'UID' => $message->uid,
+			'SEQUENCE' => $message->sequence,
+			'SUMMARY' => 'Fellowship meeting',
+		]);
+		$message->sender = 'mailto:gandalf@wiz.ard';
+		$message->recipient = 'mailto:frodo@hobb.it';
+
+		$plugin->schedule($message);
+		$this->assertEquals('1.1', $message->getScheduleStatus());
+		$this->assertEquals('Fellowship meeting', $mailMessage->getSubject());
+		$this->assertEquals(['frodo@hobb.it' => null], $mailMessage->getTo());
+		$this->assertEquals(['gandalf@wiz.ard' => null], $mailMessage->getReplyTo());
+		$this->assertEquals('text/calendar; charset=UTF-8; method=REQUEST', $mailMessage->getSwiftMessage()->getContentType());
+	}
+
+	public function testFailedDelivery() {
+		$mailMessage = new \OC\Mail\Message(new \Swift_Message());
+		/** @var Mailer | \PHPUnit_Framework_MockObject_MockObject $mailer */
+		$mailer = $this->getMockBuilder('OC\Mail\Mailer')->disableOriginalConstructor()->getMock();
+		$mailer->method('createMessage')->willReturn($mailMessage);
+		$mailer->method('send')->willThrowException(new \Exception());
+		/** @var ILogger | \PHPUnit_Framework_MockObject_MockObject $logger */
+		$logger = $this->getMockBuilder('OC\Log')->disableOriginalConstructor()->getMock();
+
+		$plugin = new IMipPlugin($mailer, $logger);
+		$message = new Message();
+		$message->method = 'REQUEST';
+		$message->message = new VCalendar();
+		$message->message->add('VEVENT', [
+			'UID' => $message->uid,
+			'SEQUENCE' => $message->sequence,
+			'SUMMARY' => 'Fellowship meeting',
+		]);
+		$message->sender = 'mailto:gandalf@wiz.ard';
+		$message->recipient = 'mailto:frodo@hobb.it';
+
+		$plugin->schedule($message);
+		$this->assertEquals('5.0', $message->getScheduleStatus());
+		$this->assertEquals('Fellowship meeting', $mailMessage->getSubject());
+		$this->assertEquals(['frodo@hobb.it' => null], $mailMessage->getTo());
+		$this->assertEquals(['gandalf@wiz.ard' => null], $mailMessage->getReplyTo());
+		$this->assertEquals('text/calendar; charset=UTF-8; method=REQUEST', $mailMessage->getSwiftMessage()->getContentType());
+	}
+
+}

lib/private/mail/message.php

@@ -238,4 +238,14 @@ class Message {
 	public function getSwiftMessage() {
 		return $this->swiftMessage;
 	}
+
+	/**
+	 * @param string $body
+	 * @param string $contentType
+	 * @return $this
+	 */
+	public function setBody($body, $contentType) {
+		$this->swiftMessage->setBody($body, $contentType);
+		return $this;
+	}
 }