/**
* Protected method for sending data to SMTP connection
*
* @param string $data data to be sent to SMTP server
* @param string|bool $checkCode code to check for in server response, false to skip
* @return string|null The matched code, or null if nothing matched
* @throws \Cake\Network\Exception\SocketException
*/
protected function _smtpSend($data, $checkCode = '250')
{
$this->_lastResponse = [];
if ($data !== null) {
$this->_socket->write($data . "\r\n");
}
$timeout = $this->_config['timeout'];
while ($checkCode !== false) {
$response = '';
$startTime = time();
while (substr($response, -2) !== "\r\n" && time() - $startTime < $timeout) {
$response .= $this->_socket->read();
}
if (substr($response, -2) !== "\r\n") {
throw new SocketException('SMTP timeout.');
}
$responseLines = explode("\r\n", rtrim($response, "\r\n"));
$response = end($responseLines);
$this->_bufferResponseLines($responseLines);
if (preg_match('/^(' . $checkCode . ')(.)/', $response, $code)) {
if ($code[2] === '-') {
continue;
}
return $code[1];
}
throw new SocketException(sprintf('SMTP Error: %s', $response));
}
}
/**
* test configuring the context from the flat keys.
*
* @return void
*/
public function testConfigContext()
{
$this->skipIf(!extension_loaded('openssl'), 'OpenSSL is not enabled cannot test SSL.');
$this->skipIf(!empty(getenv('http_proxy')) || !empty(getenv('https_proxy')), 'Proxy detected and cannot test SSL.');
$config = ['host' => 'smtp.gmail.com', 'port' => 465, 'timeout' => 5, 'ssl_verify_peer' => true, 'ssl_allow_self_signed' => false, 'ssl_verify_depth' => 5, 'ssl_verify_host' => true];
$socket = new Socket($config);
$socket->connect();
$result = $socket->context();
$this->assertTrue($result['ssl']['verify_peer']);
$this->assertFalse($result['ssl']['allow_self_signed']);
$this->assertEquals(5, $result['ssl']['verify_depth']);
$this->assertEquals('smtp.gmail.com', $result['ssl']['CN_match']);
$this->assertArrayNotHasKey('ssl_verify_peer', $socket->config());
$this->assertArrayNotHasKey('ssl_allow_self_signed', $socket->config());
$this->assertArrayNotHasKey('ssl_verify_host', $socket->config());
$this->assertArrayNotHasKey('ssl_verify_depth', $socket->config());
}
/**
* testReset method
*
* @return void
*/
public function testReset()
{
$config = ['persistent' => true, 'host' => '127.0.0.1', 'protocol' => 'udp', 'port' => 80, 'timeout' => 20];
$anotherSocket = new Socket($config);
$anotherSocket->reset();
$expected = ['persistent' => false, 'host' => 'localhost', 'protocol' => 'tcp', 'port' => 80, 'timeout' => 30];
$this->assertEquals($expected, $anotherSocket->config(), 'Reset should cause config to return the defaults defined in _defaultConfig');
}
