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<?php
/*
* This file is part of SwiftMailer.
* (c) 2004-2009 Chris Corbyn
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Sends Messages using the mail() function.
*
* It is advised that users do not use this transport if at all possible
* since a number of plugin features cannot be used in conjunction with this
* transport due to the internal interface in PHP itself.
*
* The level of error reporting with this transport is incredibly weak, again
* due to limitations of PHP's internal mail() function. You'll get an
* all-or-nothing result from sending.
*
* @author Chris Corbyn
*/
class Swift_Transport_MailTransport implements Swift_Transport
{
/** Additional parameters to pass to mail() */
private $_extraParams = '-f%s';
/** The event dispatcher from the plugin API */
private $_eventDispatcher;
/** An invoker that calls the mail() function */
private $_invoker;
/**
* Create a new MailTransport with the $log.
*
* @param Swift_Transport_MailInvoker $invoker
* @param Swift_Events_EventDispatcher $eventDispatcher
*/
public function __construct(Swift_Transport_MailInvoker $invoker, Swift_Events_EventDispatcher $eventDispatcher)
{
$this->_invoker = $invoker;
$this->_eventDispatcher = $eventDispatcher;
}
/**
* Not used.
*/
public function isStarted()
{
return false;
}
/**
* Not used.
*/
public function start()
{
}
/**
* Not used.
*/
public function stop()
{
}
/**
* Set the additional parameters used on the mail() function.
*
* This string is formatted for sprintf() where %s is the sender address.
*
* @param string $params
*
* @return Swift_Transport_MailTransport
*/
public function setExtraParams($params)
{
$this->_extraParams = $params;
return $this;
}
/**
* Get the additional parameters used on the mail() function.
*
* This string is formatted for sprintf() where %s is the sender address.
*
* @return string
*/
public function getExtraParams()
{
return $this->_extraParams;
}
/**
* Send the given Message.
*
* Recipient/sender data will be retrieved from the Message API.
* The return value is the number of recipients who were accepted for delivery.
*
* @param Swift_Mime_Message $message
* @param string[] $failedRecipients An array of failures by-reference
*
* @return int
*/
public function send(Swift_Mime_Message $message, &$failedRecipients = null)
{
$failedRecipients = (array) $failedRecipients;
if ($evt = $this->_eventDispatcher->createSendEvent($this, $message)) {
$this->_eventDispatcher->dispatchEvent($evt, 'beforeSendPerformed');
if ($evt->bubbleCancelled()) {
return 0;
}
}
$count = (
count((array) $message->getTo())
+ count((array) $message->getCc())
+ count((array) $message->getBcc())
);
$toHeader = $message->getHeaders()->get('To');
$subjectHeader = $message->getHeaders()->get('Subject');
if (0 === $count) {
$this->_throwException(new Swift_TransportException('Cannot send message without a recipient'));
}
$to = $toHeader ? $toHeader->getFieldBody() : '';
$subject = $subjectHeader ? $subjectHeader->getFieldBody() : '';
$reversePath = $this->_getReversePath($message);
// Remove headers that would otherwise be duplicated
$message->getHeaders()->remove('To');
$message->getHeaders()->remove('Subject');
$messageStr = $message->toString();
if ($toHeader) {
$message->getHeaders()->set($toHeader);
}
$message->getHeaders()->set($subjectHeader);
// Separate headers from body
if (false !== $endHeaders = strpos($messageStr, "\r\n\r\n")) {
$headers = substr($messageStr, 0, $endHeaders)."\r\n"; //Keep last EOL
$body = substr($messageStr, $endHeaders + 4);
} else {
$headers = $messageStr."\r\n";
$body = '';
}
unset($messageStr);
if ("\r\n" != PHP_EOL) {
// Non-windows (not using SMTP)
$headers = str_replace("\r\n", PHP_EOL, $headers);
$subject = str_replace("\r\n", PHP_EOL, $subject);
$body = str_replace("\r\n", PHP_EOL, $body);
} else {
// Windows, using SMTP
$headers = str_replace("\r\n.", "\r\n..", $headers);
$subject = str_replace("\r\n.", "\r\n..", $subject);
$body = str_replace("\r\n.", "\r\n..", $body);
}
if ($this->_invoker->mail($to, $subject, $body, $headers, $this->_formatExtraParams($this->_extraParams, $reversePath))) {
if ($evt) {
$evt->setResult(Swift_Events_SendEvent::RESULT_SUCCESS);
$evt->setFailedRecipients($failedRecipients);
$this->_eventDispatcher->dispatchEvent($evt, 'sendPerformed');
}
} else {
$failedRecipients = array_merge(
$failedRecipients,
array_keys((array) $message->getTo()),
array_keys((array) $message->getCc()),
array_keys((array) $message->getBcc())
);
if ($evt) {
$evt->setResult(Swift_Events_SendEvent::RESULT_FAILED);
$evt->setFailedRecipients($failedRecipients);
$this->_eventDispatcher->dispatchEvent($evt, 'sendPerformed');
}
$message->generateId();
$count = 0;
}
return $count;
}
/**
* Register a plugin.
*
* @param Swift_Events_EventListener $plugin
*/
public function registerPlugin(Swift_Events_EventListener $plugin)
{
$this->_eventDispatcher->bindEventListener($plugin);
}
/** Throw a TransportException, first sending it to any listeners */
protected function _throwException(Swift_TransportException $e)
{
if ($evt = $this->_eventDispatcher->createTransportExceptionEvent($this, $e)) {
$this->_eventDispatcher->dispatchEvent($evt, 'exceptionThrown');
if (!$evt->bubbleCancelled()) {
throw $e;
}
} else {
throw $e;
}
}
/** Determine the best-use reverse path for this message */
private function _getReversePath(Swift_Mime_Message $message)
{
$return = $message->getReturnPath();
$sender = $message->getSender();
$from = $message->getFrom();
$path = null;
if (!empty($return)) {
$path = $return;
} elseif (!empty($sender)) {
$keys = array_keys($sender);
$path = array_shift($keys);
} elseif (!empty($from)) {
$keys = array_keys($from);
$path = array_shift($keys);
}
return $path;
}
/**
* Return php mail extra params to use for invoker->mail.
*
* @param $extraParams
* @param $reversePath
*
* @return string|null
*/
private function _formatExtraParams($extraParams, $reversePath)
{
if (false !== strpos($extraParams, '-f%s')) {
// no need to escape $reversePath) as mail() already does it
$extraParams = empty($reversePath) ? str_replace('-f%s', '', $extraParams) : sprintf($extraParams, $reversePath);
}
return !empty($extraParams) ? $extraParams : null;
}
}