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IMipPlugin.php
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IMipPlugin.php
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<?php
namespace Sabre\CalDAV\Schedule;
use Sabre\DAV;
use Sabre\VObject\ITip;
/**
* 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 DAV\ServerPlugin {
/**
* Email address used in From: header.
*
* @var string
*/
protected $senderEmail;
/**
* ITipMessage
*
* @var ITip\Message
*/
protected $itipMessage;
/**
* Creates the email handler.
*
* @param string $senderEmail. The 'senderEmail' is the email that shows up
* in the 'From:' address. This should
* generally be some kind of no-reply email
* address you own.
*/
function __construct($senderEmail) {
$this->senderEmail = $senderEmail;
}
/*
* This initializes the plugin.
*
* This function is called by Sabre\DAV\Server, after
* addPlugin is called.
*
* This method should set up the required event subscriptions.
*
* @param DAV\Server $server
* @return void
*/
function initialize(DAV\Server $server) {
$server->on('schedule', [$this, 'schedule'], 120);
}
/**
* Returns a plugin name.
*
* Using this name other plugins will be able to access other plugins
* using \Sabre\DAV\Server::getPlugin
*
* @return string
*/
function getPluginName() {
return 'imip';
}
/**
* 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);
if ($iTipMessage->senderName) {
$sender = $iTipMessage->senderName . ' <' . $sender . '>';
}
if ($iTipMessage->recipientName) {
$recipient = $iTipMessage->recipientName . ' <' . $recipient . '>';
}
$subject = 'SabreDAV iTIP message';
switch (strtoupper($iTipMessage->method)) {
case 'REPLY' :
$subject = 'Re: ' . $summary;
break;
case 'REQUEST' :
$subject = $summary;
break;
case 'CANCEL' :
$subject = 'Cancelled: ' . $summary;
break;
}
$headers = [
'Reply-To: ' . $sender,
'From: ' . $this->senderEmail,
'Content-Type: text/calendar; charset=UTF-8; method=' . $iTipMessage->method,
];
if (DAV\Server::$exposeVersion) {
$headers[] = 'X-Sabre-Version: ' . DAV\Version::VERSION;
}
$this->mail(
$recipient,
$subject,
$iTipMessage->message->serialize(),
$headers
);
$iTipMessage->scheduleStatus = '1.1; Scheduling message is sent via iMip';
}
// @codeCoverageIgnoreStart
// This is deemed untestable in a reasonable manner
/**
* This function is responsible for sending the actual email.
*
* @param string $to Recipient email address
* @param string $subject Subject of the email
* @param string $body iCalendar body
* @param array $headers List of headers
* @return void
*/
protected function mail($to, $subject, $body, array $headers) {
mail($to, $subject, $body, implode("\r\n", $headers));
}
// @codeCoverageIgnoreEnd
/**
* Returns a bunch of meta-data about the plugin.
*
* Providing this information is optional, and is mainly displayed by the
* Browser plugin.
*
* The description key in the returned array may contain html and will not
* be sanitized.
*
* @return array
*/
function getPluginInfo() {
return [
'name' => $this->getPluginName(),
'description' => 'Email delivery (rfc6037) for CalDAV scheduling',
'link' => 'http://sabre.io/dav/scheduling/',
];
}
}

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