I'm writing some app based on websockets (RFC 6455). Unfortunetly it looks like the client (testing on Chrome 18) doesn't receive data, but the server says it is sending...
Chrome doesn't say anything
Here are main server methods:
private function decode($payload) {
$length = ord($payload[1]) & 127;
if ($length == 126) {
$masks = substr($payload, 4, 4);
$data = substr($payload, 8);
} elseif ($length == 127) {
$masks = substr($payload, 10, 4);
$data = substr($payload, 14);
} else {
$masks = substr($payload, 2, 4);
$data = substr($payload, 6);
}
$text = '';
for ($i = 0; $i < strlen($data); ++$i) {
$text .= $data[$i] ^ $masks[$i % 4];
}
$text = base64_decode($text);
return $text;
}
private function encode($text) {
$text = base64_encode($text);
// 0x1 text frame (FIN + opcode)
$b1 = 0x80 | (0x1 & 0x0f);
$length = strlen($text);
if ($length <= 125)
$header = pack('CC', $b1, $length);
elseif ($length > 125 && $length < 65536)
$header = pack('CCS', $b1, 126, $length);
else
$header = pack('CCN', $b1, 127, $length);
return $header . $text;
}
protected function process($user, $msg) {
echo '<< '.$msg.N;
if (empty($msg)) {
$this->send($user->socket, $msg);
return;
}
}
protected function send($client, $msg) {
$msg = $this->encode($msg);
echo '>> '.$msg.N;
socket_write($client, $msg, strlen($msg));
}