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Diffstat (limited to 'vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php')
| -rw-r--r-- | vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php | 334 |
1 files changed, 334 insertions, 0 deletions
diff --git a/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php b/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php new file mode 100644 index 0000000..3a9fe76 --- /dev/null +++ b/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php @@ -0,0 +1,334 @@ +<?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. + */ + +/** + * A generic IoBuffer implementation supporting remote sockets and local processes. + * + * @author Chris Corbyn + */ +class Swift_Transport_StreamBuffer extends Swift_ByteStream_AbstractFilterableInputStream implements Swift_Transport_IoBuffer +{ + /** A primary socket */ + private $_stream; + + /** The input stream */ + private $_in; + + /** The output stream */ + private $_out; + + /** Buffer initialization parameters */ + private $_params = array(); + + /** The ReplacementFilterFactory */ + private $_replacementFactory; + + /** Translations performed on data being streamed into the buffer */ + private $_translations = array(); + + /** + * Create a new StreamBuffer using $replacementFactory for transformations. + * + * @param Swift_ReplacementFilterFactory $replacementFactory + */ + public function __construct(Swift_ReplacementFilterFactory $replacementFactory) + { + $this->_replacementFactory = $replacementFactory; + } + + /** + * Perform any initialization needed, using the given $params. + * + * Parameters will vary depending upon the type of IoBuffer used. + * + * @param array $params + */ + public function initialize(array $params) + { + $this->_params = $params; + switch ($params['type']) { + case self::TYPE_PROCESS: + $this->_establishProcessConnection(); + break; + case self::TYPE_SOCKET: + default: + $this->_establishSocketConnection(); + break; + } + } + + /** + * Set an individual param on the buffer (e.g. switching to SSL). + * + * @param string $param + * @param mixed $value + */ + public function setParam($param, $value) + { + if (isset($this->_stream)) { + switch ($param) { + case 'timeout': + if ($this->_stream) { + stream_set_timeout($this->_stream, $value); + } + break; + + case 'blocking': + if ($this->_stream) { + stream_set_blocking($this->_stream, 1); + } + } + } + $this->_params[$param] = $value; + } + + public function startTLS() + { + // STREAM_CRYPTO_METHOD_TLS_CLIENT only allow tls1.0 connections (some php versions) + // To support modern tls we allow explicit tls1.0, tls1.1, tls1.2 + // Ssl3 and older are not allowed because they are vulnerable + // @TODO make tls arguments configurable + $cryptoType = STREAM_CRYPTO_METHOD_TLS_CLIENT; + if (PHP_VERSION_ID >= 50600) { + $cryptoType = STREAM_CRYPTO_METHOD_TLSv1_0_CLIENT | STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT | STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT; + } + + return stream_socket_enable_crypto($this->_stream, true, $cryptoType); + } + + /** + * Perform any shutdown logic needed. + */ + public function terminate() + { + if (isset($this->_stream)) { + switch ($this->_params['type']) { + case self::TYPE_PROCESS: + fclose($this->_in); + fclose($this->_out); + proc_close($this->_stream); + break; + case self::TYPE_SOCKET: + default: + fclose($this->_stream); + break; + } + } + $this->_stream = null; + $this->_out = null; + $this->_in = null; + } + + /** + * Set an array of string replacements which should be made on data written + * to the buffer. + * + * This could replace LF with CRLF for example. + * + * @param string[] $replacements + */ + public function setWriteTranslations(array $replacements) + { + foreach ($this->_translations as $search => $replace) { + if (!isset($replacements[$search])) { + $this->removeFilter($search); + unset($this->_translations[$search]); + } + } + + foreach ($replacements as $search => $replace) { + if (!isset($this->_translations[$search])) { + $this->addFilter( + $this->_replacementFactory->createFilter($search, $replace), $search + ); + $this->_translations[$search] = true; + } + } + } + + /** + * Get a line of output (including any CRLF). + * + * The $sequence number comes from any writes and may or may not be used + * depending upon the implementation. + * + * @param int $sequence of last write to scan from + * + * @throws Swift_IoException + * + * @return string + */ + public function readLine($sequence) + { + if (isset($this->_out) && !feof($this->_out)) { + $line = fgets($this->_out); + if (strlen($line) == 0) { + $metas = stream_get_meta_data($this->_out); + if ($metas['timed_out']) { + throw new Swift_IoException( + 'Connection to '. + $this->_getReadConnectionDescription(). + ' Timed Out' + ); + } + } + + return $line; + } + } + + /** + * Reads $length bytes from the stream into a string and moves the pointer + * through the stream by $length. + * + * If less bytes exist than are requested the remaining bytes are given instead. + * If no bytes are remaining at all, boolean false is returned. + * + * @param int $length + * + * @throws Swift_IoException + * + * @return string|bool + */ + public function read($length) + { + if (isset($this->_out) && !feof($this->_out)) { + $ret = fread($this->_out, $length); + if (strlen($ret) == 0) { + $metas = stream_get_meta_data($this->_out); + if ($metas['timed_out']) { + throw new Swift_IoException( + 'Connection to '. + $this->_getReadConnectionDescription(). + ' Timed Out' + ); + } + } + + return $ret; + } + } + + /** Not implemented */ + public function setReadPointer($byteOffset) + { + } + + /** Flush the stream contents */ + protected function _flush() + { + if (isset($this->_in)) { + fflush($this->_in); + } + } + + /** Write this bytes to the stream */ + protected function _commit($bytes) + { + if (isset($this->_in)) { + $bytesToWrite = strlen($bytes); + $totalBytesWritten = 0; + + while ($totalBytesWritten < $bytesToWrite) { + $bytesWritten = fwrite($this->_in, substr($bytes, $totalBytesWritten)); + if (false === $bytesWritten || 0 === $bytesWritten) { + break; + } + + $totalBytesWritten += $bytesWritten; + } + + if ($totalBytesWritten > 0) { + return ++$this->_sequence; + } + } + } + + /** + * Establishes a connection to a remote server. + */ + private function _establishSocketConnection() + { + $host = $this->_params['host']; + if (!empty($this->_params['protocol'])) { + $host = $this->_params['protocol'].'://'.$host; + } + $timeout = 15; + if (!empty($this->_params['timeout'])) { + $timeout = $this->_params['timeout']; + } + $options = array(); + if (!empty($this->_params['sourceIp'])) { + $options['socket']['bindto'] = $this->_params['sourceIp'].':0'; + } + if (isset($this->_params['stream_context_options'])) { + $options = array_merge($options, $this->_params['stream_context_options']); + } + $streamContext = stream_context_create($options); + $this->_stream = @stream_socket_client($host.':'.$this->_params['port'], $errno, $errstr, $timeout, STREAM_CLIENT_CONNECT, $streamContext); + if (false === $this->_stream) { + throw new Swift_TransportException( + 'Connection could not be established with host '.$this->_params['host']. + ' ['.$errstr.' #'.$errno.']' + ); + } + if (!empty($this->_params['blocking'])) { + stream_set_blocking($this->_stream, 1); + } else { + stream_set_blocking($this->_stream, 0); + } + stream_set_timeout($this->_stream, $timeout); + $this->_in = &$this->_stream; + $this->_out = &$this->_stream; + } + + /** + * Opens a process for input/output. + */ + private function _establishProcessConnection() + { + $command = $this->_params['command']; + $descriptorSpec = array( + 0 => array('pipe', 'r'), + 1 => array('pipe', 'w'), + 2 => array('pipe', 'w'), + ); + $pipes = array(); + $this->_stream = proc_open($command, $descriptorSpec, $pipes); + stream_set_blocking($pipes[2], 0); + if ($err = stream_get_contents($pipes[2])) { + throw new Swift_TransportException( + 'Process could not be started ['.$err.']' + ); + } + $this->_in = &$pipes[0]; + $this->_out = &$pipes[1]; + } + + private function _getReadConnectionDescription() + { + switch ($this->_params['type']) { + case self::TYPE_PROCESS: + return 'Process '.$this->_params['command']; + break; + + case self::TYPE_SOCKET: + default: + $host = $this->_params['host']; + if (!empty($this->_params['protocol'])) { + $host = $this->_params['protocol'].'://'.$host; + } + $host .= ':'.$this->_params['port']; + + return $host; + break; + } + } +} |