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89 lines
2.4 KiB
89 lines
2.4 KiB
7 years ago
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<?php
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/*
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* This file is part of SwiftMailer.
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* (c) 2004-2009 Chris Corbyn
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* Contains a list of redundant Transports so when one fails, the next is used.
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*
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* @author Chris Corbyn
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*/
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class Swift_Transport_FailoverTransport extends Swift_Transport_LoadBalancedTransport
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{
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/**
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* Registered transport currently used.
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*
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* @var Swift_Transport
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*/
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private $_currentTransport;
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// needed as __construct is called from elsewhere explicitly
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public function __construct()
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{
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parent::__construct();
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}
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/**
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* Send the given Message.
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*
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* Recipient/sender data will be retrieved from the Message API.
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* The return value is the number of recipients who were accepted for delivery.
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*
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* @param Swift_Mime_Message $message
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* @param string[] $failedRecipients An array of failures by-reference
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*
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* @return int
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*/
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public function send(Swift_Mime_Message $message, &$failedRecipients = null)
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{
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$maxTransports = count($this->_transports);
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$sent = 0;
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$this->_lastUsedTransport = null;
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for ($i = 0; $i < $maxTransports
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&& $transport = $this->_getNextTransport(); ++$i) {
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try {
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if (!$transport->isStarted()) {
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$transport->start();
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}
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if ($sent = $transport->send($message, $failedRecipients)) {
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$this->_lastUsedTransport = $transport;
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return $sent;
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}
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} catch (Swift_TransportException $e) {
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$this->_killCurrentTransport();
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}
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}
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if (count($this->_transports) == 0) {
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throw new Swift_TransportException(
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'All Transports in FailoverTransport failed, or no Transports available'
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);
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}
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return $sent;
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}
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protected function _getNextTransport()
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{
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if (!isset($this->_currentTransport)) {
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$this->_currentTransport = parent::_getNextTransport();
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}
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return $this->_currentTransport;
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}
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protected function _killCurrentTransport()
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{
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$this->_currentTransport = null;
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parent::_killCurrentTransport();
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}
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}
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