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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @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\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';
}
}
}
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