function cps2_exchange($host, $port, $message, $recipient, &$networkTime)
{
$result = "";
$errno = 0;
$error = "";
$sock = sock_init();
$time_start = microtime(true);
if (sock_open($sock, $host, $port)) {
$networkTime = microtime(true) - $time_start;
$pbsend = new SimpleProtoBuf();
$pbsend->NewFieldString(1, $message);
if ($recipient === false) {
$pbsend->NewFieldString(2, "special:detect-storage");
} else {
$pbsend->NewFieldString(2, $recipient);
}
$pbsendbytes = $pbsend->ToBytes();
$length = strlen($pbsendbytes);
$header = cps2_header($length);
$time_start = microtime(true);
sock_write($sock, $header . $pbsendbytes, 8 + $length);
// sock_write($sock, $pbsendbytes);
// sock_flush($sock);
$header = sock_read($sock, 8);
if (!cps2_check_header($header)) {
throw new CPS_Exception(array(array('long_message' => "Wrong header received", 'code' => ERROR_CODE_TIMEOUT, 'level' => 'FAILED', 'source' => 'CPS_API')));
}
$length = cps2_length($header);
if ($length <= 2) {
throw new CPS_Exception(array(array('long_message' => "Response timeout", 'code' => ERROR_CODE_TIMEOUT, 'level' => 'FAILED', 'source' => 'CPS_API')));
}
$read = 0;
$pbrecvbytes = "";
while ($read < $length) {
if (($part = sock_read($sock, $length - $read)) === FALSE) {
throw new CPS_Exception(array(array('long_message' => "Socket error when receiving response", 'code' => ERROR_CODE_TIMEOUT, 'level' => 'FAILED', 'source' => 'CPS_API')));
}
$read += strlen($part);
$pbrecvbytes .= $part;
}
$networkTime += microtime(true) - $time_start;
$result = "";
$pbrecv = new SimpleProtoBuf();
$pbrecv->FromBytes($pbrecvbytes);
$wasok = true;
$reterr = $pbrecv->GetFieldString(5);
if ($reterr !== false && strlen($reterr) >= 8) {
$err_code = ord($reterr[3]) * 256 * 256 * 256 + ord($reterr[2]) * 256 * 256 + ord($reterr[1]) * 256 + ord($reterr[0]);
$err_line = ord($reterr[7]) * 256 * 256 * 256 + ord($reterr[6]) * 256 * 256 + ord($reterr[5]) * 256 + ord($reterr[4]);
$err_file = substr($reterr, 8);
if ($err_code != 0) {
$wasok = false;
$result = "[cps2_protobuf] Error {$err_code} @ {$err_file}:{$err_line}";
throw new CPS_Exception(array(array('long_message' => "[cps2_protobuf] Error {$err_code} @ {$err_file}:{$err_line}", 'code' => ERROR_CODE_PROTOBUF_ERROR, 'level' => 'FAILED', 'source' => 'CPS_API')));
}
}
if ($wasok) {
$result = $pbrecv->GetFieldString(1);
}
sock_close($sock);
} else {
sock_error($sock, $error, $errno);
$result = "[cps2_exchange] Error {$errno}: {$error}";
throw new CPS_Exception(array(array('long_message' => "[cps2_exchange] Error {$errno}: {$error}", 'code' => ERROR_CODE_SOCKET_ERROR, 'level' => 'FAILED', 'source' => 'CPS_API')));
}
sock_free($sock);
return $result;
}
function cps2_exchange($host, $port, $message, $recipient, &$networkTime, $hmacUserKey = false, $hmacSignKey = false, $ssl_options = false)
{
$result = "";
$errno = 0;
$error = "";
$sock = sock_init();
if (is_array($ssl_options) && isset($ssl_options["enabled"]) && function_exists("sock_enable_ssl")) {
sock_enable_ssl($sock, $ssl_options["enabled"], $ssl_options["ca"], $ssl_options["cn"]);
}
$time_start = microtime(true);
if (sock_open($sock, $host, $port)) {
$networkTime = microtime(true) - $time_start;
$pbsend = new SimpleProtoBuf();
$pbsend->NewFieldString(1, $message);
if ($recipient === false) {
$pbsend->NewFieldString(2, "special:detect-storage");
} else {
$pbsend->NewFieldString(2, $recipient);
}
$pbsendbytes = $pbsend->ToBytes();
if ($hmacUserKey !== false && $hmacSignKey !== false) {
$pbsend->NewFieldString(14, $token = cps2_random_string(16));
$pbsend->NewFieldFixed64_is_32bit(15, $validity = date("U") + 10);
$pbsend->NewFieldString(16, $hmacUserKey);
$pbsend->NewFieldString(17, sha1(sha1($message) . $token . $validity . $hmacSignKey));
$pbsend->NewFieldString(18, hash_hmac('sha1', $message . $token . $validity, $hmacSignKey));
$pbsendbytes = $pbsend->ToBytes();
}
$length = strlen($pbsendbytes);
$header = cps2_header($length);
$time_start = microtime(true);
sock_write($sock, $header . $pbsendbytes, 8 + $length);
$header = sock_read($sock, 8);
if (!cps2_check_header($header)) {
throw new CPS_Exception(array(array('long_message' => "Wrong header received", 'code' => ERROR_CODE_TIMEOUT, 'level' => 'FAILED', 'source' => 'CPS_API')));
}
$length = cps2_length($header);
if ($length <= 2) {
throw new CPS_Exception(array(array('long_message' => "Response timeout", 'code' => ERROR_CODE_TIMEOUT, 'level' => 'FAILED', 'source' => 'CPS_API')));
}
$read = 0;
$pbrecvbytes = "";
while ($read < $length) {
if (($part = sock_read($sock, $length - $read)) === FALSE) {
throw new CPS_Exception(array(array('long_message' => "Socket error when receiving response", 'code' => ERROR_CODE_TIMEOUT, 'level' => 'FAILED', 'source' => 'CPS_API')));
}
$read += strlen($part);
$pbrecvbytes .= $part;
}
$networkTime += microtime(true) - $time_start;
$result = "";
$pbrecv = new SimpleProtoBuf();
$pbrecv->FromBytes($pbrecvbytes);
$wasok = true;
$reterr = $pbrecv->GetFieldString(5);
if ($reterr !== false && strlen($reterr) >= 8) {
$err_code = ord($reterr[3]) * 256 * 256 * 256 + ord($reterr[2]) * 256 * 256 + ord($reterr[1]) * 256 + ord($reterr[0]);
$err_line = ord($reterr[7]) * 256 * 256 * 256 + ord($reterr[6]) * 256 * 256 + ord($reterr[5]) * 256 + ord($reterr[4]);
$err_file = substr($reterr, 8);
if ($err_code != 0) {
$wasok = false;
$result = "[cps2_protobuf] Error {$err_code} @ {$err_file}:{$err_line}";
throw new CPS_Exception(array(array('long_message' => "[cps2_protobuf] Error {$err_code} @ {$err_file}:{$err_line}", 'code' => ERROR_CODE_PROTOBUF_ERROR, 'level' => 'FAILED', 'source' => 'CPS_API')));
}
}
if ($wasok) {
$result = $pbrecv->GetFieldString(1);
}
sock_close($sock);
} else {
sock_error($sock, $error, $errno);
$result = "[cps2_exchange] Error {$errno}: {$error}";
$code = ERROR_CODE_SOCKET_ERROR;
if ($error == "SSL handshake error") {
$code = ERROR_CODE_SSL_HANDSHAKE;
}
throw new CPS_Exception(array(array('long_message' => "[cps2_exchange] Error {$errno}: {$error}", 'code' => $code, 'level' => 'FAILED', 'source' => 'CPS_API')));
}
sock_free($sock);
return $result;
}