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| -rw-r--r-- | vendor/swiftmailer/swiftmailer/lib/classes/Swift/Plugins/PopBeforeSmtpPlugin.php | 273 |
diff --git a/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Plugins/PopBeforeSmtpPlugin.php b/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Plugins/PopBeforeSmtpPlugin.php new file mode 100644 index 0000000..3146152 --- /dev/null +++ b/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Plugins/PopBeforeSmtpPlugin.php @@ -0,0 +1,273 @@ +<?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. + */ + +/** + * Makes sure a connection to a POP3 host has been established prior to connecting to SMTP. + * + * @author Chris Corbyn + */ +class Swift_Plugins_PopBeforeSmtpPlugin implements Swift_Events_TransportChangeListener, Swift_Plugins_Pop_Pop3Connection +{ + /** A delegate connection to use (mostly a test hook) */ + private $_connection; + + /** Hostname of the POP3 server */ + private $_host; + + /** Port number to connect on */ + private $_port; + + /** Encryption type to use (if any) */ + private $_crypto; + + /** Username to use (if any) */ + private $_username; + + /** Password to use (if any) */ + private $_password; + + /** Established connection via TCP socket */ + private $_socket; + + /** Connect timeout in seconds */ + private $_timeout = 10; + + /** SMTP Transport to bind to */ + private $_transport; + + /** + * Create a new PopBeforeSmtpPlugin for $host and $port. + * + * @param string $host + * @param int $port + * @param string $crypto as "tls" or "ssl" + */ + public function __construct($host, $port = 110, $crypto = null) + { + $this->_host = $host; + $this->_port = $port; + $this->_crypto = $crypto; + } + + /** + * Create a new PopBeforeSmtpPlugin for $host and $port. + * + * @param string $host + * @param int $port + * @param string $crypto as "tls" or "ssl" + * + * @return self + */ + public static function newInstance($host, $port = 110, $crypto = null) + { + return new self($host, $port, $crypto); + } + + /** + * Set a Pop3Connection to delegate to instead of connecting directly. + * + * @param Swift_Plugins_Pop_Pop3Connection $connection + * + * @return $this + */ + public function setConnection(Swift_Plugins_Pop_Pop3Connection $connection) + { + $this->_connection = $connection; + + return $this; + } + + /** + * Bind this plugin to a specific SMTP transport instance. + * + * @param Swift_Transport + */ + public function bindSmtp(Swift_Transport $smtp) + { + $this->_transport = $smtp; + } + + /** + * Set the connection timeout in seconds (default 10). + * + * @param int $timeout + * + * @return $this + */ + public function setTimeout($timeout) + { + $this->_timeout = (int) $timeout; + + return $this; + } + + /** + * Set the username to use when connecting (if needed). + * + * @param string $username + * + * @return $this + */ + public function setUsername($username) + { + $this->_username = $username; + + return $this; + } + + /** + * Set the password to use when connecting (if needed). + * + * @param string $password + * + * @return $this + */ + public function setPassword($password) + { + $this->_password = $password; + + return $this; + } + + /** + * Connect to the POP3 host and authenticate. + * + * @throws Swift_Plugins_Pop_Pop3Exception if connection fails + */ + public function connect() + { + if (isset($this->_connection)) { + $this->_connection->connect(); + } else { + if (!isset($this->_socket)) { + if (!$socket = fsockopen( + $this->_getHostString(), $this->_port, $errno, $errstr, $this->_timeout)) { + throw new Swift_Plugins_Pop_Pop3Exception( + sprintf('Failed to connect to POP3 host [%s]: %s', $this->_host, $errstr) + ); + } + $this->_socket = $socket; + + if (false === $greeting = fgets($this->_socket)) { + throw new Swift_Plugins_Pop_Pop3Exception( + sprintf('Failed to connect to POP3 host [%s]', trim($greeting)) + ); + } + + $this->_assertOk($greeting); + + if ($this->_username) { + $this->_command(sprintf("USER %s\r\n", $this->_username)); + $this->_command(sprintf("PASS %s\r\n", $this->_password)); + } + } + } + } + + /** + * Disconnect from the POP3 host. + */ + public function disconnect() + { + if (isset($this->_connection)) { + $this->_connection->disconnect(); + } else { + $this->_command("QUIT\r\n"); + if (!fclose($this->_socket)) { + throw new Swift_Plugins_Pop_Pop3Exception( + sprintf('POP3 host [%s] connection could not be stopped', $this->_host) + ); + } + $this->_socket = null; + } + } + + /** + * Invoked just before a Transport is started. + * + * @param Swift_Events_TransportChangeEvent $evt + */ + public function beforeTransportStarted(Swift_Events_TransportChangeEvent $evt) + { + if (isset($this->_transport)) { + if ($this->_transport !== $evt->getTransport()) { + return; + } + } + + $this->connect(); + $this->disconnect(); + } + + /** + * Not used. + */ + public function transportStarted(Swift_Events_TransportChangeEvent $evt) + { + } + + /** + * Not used. + */ + public function beforeTransportStopped(Swift_Events_TransportChangeEvent $evt) + { + } + + /** + * Not used. + */ + public function transportStopped(Swift_Events_TransportChangeEvent $evt) + { + } + + private function _command($command) + { + if (!fwrite($this->_socket, $command)) { + throw new Swift_Plugins_Pop_Pop3Exception( + sprintf('Failed to write command [%s] to POP3 host', trim($command)) + ); + } + + if (false === $response = fgets($this->_socket)) { + throw new Swift_Plugins_Pop_Pop3Exception( + sprintf('Failed to read from POP3 host after command [%s]', trim($command)) + ); + } + + $this->_assertOk($response); + + return $response; + } + + private function _assertOk($response) + { + if (substr($response, 0, 3) != '+OK') { + throw new Swift_Plugins_Pop_Pop3Exception( + sprintf('POP3 command failed [%s]', trim($response)) + ); + } + } + + private function _getHostString() + { + $host = $this->_host; + switch (strtolower($this->_crypto)) { + case 'ssl': + $host = 'ssl://'.$host; + break; + + case 'tls': + $host = 'tls://'.$host; + break; + } + + return $host; + } +} |