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<?php
/**
* @author Lukas Reschke <lukas@owncloud.com>
*
* @copyright Copyright (c) 2016, 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 OC\Mail;
use OCP\IConfig;
use OCP\Mail\IMailer;
use OCP\ILogger;
/**
* Class Mailer provides some basic functions to create a mail message that can be used in combination with
* \OC\Mail\Message.
*
* Example usage:
*
* $mailer = \OC::$server->getMailer();
* $message = $mailer->createMessage();
* $message->setSubject('Your Subject');
* $message->setFrom(array('cloud@domain.org' => 'ownCloud Notifier');
* $message->setTo(array('recipient@domain.org' => 'Recipient');
* $message->setBody('The message text');
* $mailer->send($message);
*
* This message can then be passed to send() of \OC\Mail\Mailer
*
* @package OC\Mail
*/
class Mailer implements IMailer {
/** @var \Swift_SmtpTransport|\Swift_SendmailTransport|\Swift_MailTransport Cached transport */
private $instance = null;
/** @var IConfig */
private $config;
/** @var ILogger */
private $logger;
/** @var \OC_Defaults */
private $defaults;
/**
* @param IConfig $config
* @param ILogger $logger
* @param \OC_Defaults $defaults
*/
function __construct(IConfig $config,
ILogger $logger,
\OC_Defaults $defaults) {
$this->config = $config;
$this->logger = $logger;
$this->defaults = $defaults;
}
/**
* Creates a new message object that can be passed to send()
*
* @return Message
*/
public function createMessage() {
return new Message(new \Swift_Message());
}
/**
* Send the specified message. Also sets the from address to the value defined in config.php
* if no-one has been passed.
*
* @param Message $message Message to send
* @return string[] Array with failed recipients. Be aware that this depends on the used mail backend and
* therefore should be considered
* @throws \Exception In case it was not possible to send the message. (for example if an invalid mail address
* has been supplied.)
*/
public function send(Message $message) {
$debugMode = $this->config->getSystemValue('mail_smtpdebug', false);
if (sizeof($message->getFrom()) === 0) {
$message->setFrom([\OCP\Util::getDefaultEmailAddress($this->defaults->getName())]);
}
$failedRecipients = [];
$mailer = $this->getInstance();
// Enable logger if debug mode is enabled
if($debugMode) {
$mailLogger = new \Swift_Plugins_Loggers_ArrayLogger();
$mailer->registerPlugin(new \Swift_Plugins_LoggerPlugin($mailLogger));
}
$mailer->send($message->getSwiftMessage(), $failedRecipients);
// Debugging logging
$logMessage = sprintf('Sent mail to "%s" with subject "%s"', print_r($message->getTo(), true), $message->getSubject());
$this->logger->debug($logMessage, ['app' => 'core']);
if($debugMode && isset($mailLogger)) {
$this->logger->debug($mailLogger->dump(), ['app' => 'core']);
}
return $failedRecipients;
}
/**
* Checks if an e-mail address is valid
*
* @param string $email Email address to be validated
* @return bool True if the mail address is valid, false otherwise
*/
public function validateMailAddress($email) {
return \Swift_Validate::email($this->convertEmail($email));
}
/**
* SwiftMailer does currently not work with IDN domains, this function therefore converts the domains
*
* FIXME: Remove this once SwiftMailer supports IDN
*
* @param string $email
* @return string Converted mail address if `idn_to_ascii` exists
*/
protected function convertEmail($email) {
if (!function_exists('idn_to_ascii') || strpos($email, '@') === false) {
return $email;
}
list($name, $domain) = explode('@', $email, 2);
$domain = idn_to_ascii($domain);
return $name.'@'.$domain;
}
/**
* Returns whatever transport is configured within the config
*
* @return \Swift_SmtpTransport|\Swift_SendmailTransport|\Swift_MailTransport
*/
protected function getInstance() {
if (!is_null($this->instance)) {
return $this->instance;
}
switch ($this->config->getSystemValue('mail_smtpmode', 'php')) {
case 'smtp':
$this->instance = $this->getSMTPInstance();
break;
case 'sendmail':
// FIXME: Move into the return statement but requires proper testing
// for SMTP and mail as well. Thus not really doable for a
// minor release.
$this->instance = \Swift_Mailer::newInstance($this->getSendMailInstance());
break;
default:
$this->instance = $this->getMailInstance();
break;
}
return $this->instance;
}
/**
* Returns the SMTP transport
*
* @return \Swift_SmtpTransport
*/
protected function getSmtpInstance() {
$transport = \Swift_SmtpTransport::newInstance();
$transport->setTimeout($this->config->getSystemValue('mail_smtptimeout', 10));
$transport->setHost($this->config->getSystemValue('mail_smtphost', '127.0.0.1'));
$transport->setPort($this->config->getSystemValue('mail_smtpport', 25));
if ($this->config->getSystemValue('mail_smtpauth', false)) {
$transport->setUsername($this->config->getSystemValue('mail_smtpname', ''));
$transport->setPassword($this->config->getSystemValue('mail_smtppassword', ''));
$transport->setAuthMode($this->config->getSystemValue('mail_smtpauthtype', 'LOGIN'));
}
$smtpSecurity = $this->config->getSystemValue('mail_smtpsecure', '');
if (!empty($smtpSecurity)) {
$transport->setEncryption($smtpSecurity);
}
$transport->start();
return $transport;
}
/**
* Returns the sendmail transport
*
* @return \Swift_SendmailTransport
*/
protected function getSendMailInstance() {
switch ($this->config->getSystemValue('mail_smtpmode', 'sendmail')) {
case 'qmail':
$binaryPath = '/var/qmail/bin/sendmail';
break;
default:
$binaryPath = '/usr/sbin/sendmail';
break;
}
return \Swift_SendmailTransport::newInstance($binaryPath . ' -bs');
}
/**
* Returns the mail transport
*
* @return \Swift_MailTransport
*/
protected function getMailInstance() {
return \Swift_MailTransport::newInstance();
}
}
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