/**
* Connect to SMTP Server
*
* @return void
* @throws \Cake\Network\Exception\SocketException
*/
protected function _connect()
{
$this->_generateSocket();
if (!$this->_socket->connect()) {
throw new SocketException('Unable to connect to SMTP server.');
}
$this->_smtpSend(null, '220');
$config = $this->_config;
if (isset($config['client'])) {
$host = $config['client'];
} elseif ($httpHost = env('HTTP_HOST')) {
list($host) = explode(':', $httpHost);
} else {
$host = 'localhost';
}
try {
$this->_smtpSend("EHLO {$host}", '250');
if ($config['tls']) {
$this->_smtpSend("STARTTLS", '220');
$this->_socket->enableCrypto('tls');
$this->_smtpSend("EHLO {$host}", '250');
}
} catch (SocketException $e) {
if ($config['tls']) {
throw new SocketException('SMTP server did not accept the connection or trying to connect to non TLS SMTP server using TLS.');
}
try {
$this->_smtpSend("HELO {$host}", '250');
} catch (SocketException $e2) {
throw new SocketException('SMTP server did not accept the connection.');
}
}
}
/**
* 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());
}
