/**
* Testing Helper random string generator with spaces
*
* @return void
*/
public function testRandomGenerator()
{
$string = Helper::generateRandomString(10, TRUE, FALSE);
$this->assertTrue(strlen($string) == 10, "string should contain 10 characters");
$this->assertTrue(strpos($string, ' ') !== FALSE, "spaces should have been found");
}
/**
* Make Original handshake with the server
*
* @param bool $origin whether or not to provide the origin header. currently unsupported
*
* @return bool TRUE on succes FALSE on failure
*/
protected function makeHandshake($origin = FALSE)
{
try {
$protocol = 'http';
if ($this->ssl) {
$protocol = 'ssl';
}
$key = base64_encode(Helper::generateRandomString(16, FALSE, TRUE));
$header = "GET /gremlin HTTP/1.1\r\n";
$header .= "Upgrade: websocket\r\n";
$header .= "Connection: Upgrade\r\n";
$header .= "Sec-WebSocket-Key: " . $key . "\r\n";
$header .= "Host: " . $this->host . "\r\n";
if ($origin !== TRUE) {
$header .= "Sec-WebSocket-Origin: " . $protocol . "://" . $this->host . ":" . $this->port . "\r\n";
}
$header .= "Sec-WebSocket-Version: 13\r\n\r\n";
@fwrite($this->_socket, $header);
$response = @fread($this->_socket, 1500);
preg_match('#Sec-WebSocket-Accept:\\s(.*)$#mU', $response, $matches);
$keyAccept = trim($matches[1]);
$expectedResponse = base64_encode(pack('H*', sha1($key . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
return $keyAccept === $expectedResponse ? TRUE : FALSE;
} catch (\Exception $e) {
$this->error("Could not finalise handshake, Maybe the server was unreachable", 500, TRUE);
}
}
