/**
* @param ClientInterface $client
* @param string $input
* @param int $length
* @param bool $isError
* @throws RuntimeException
* @return RequestHandlerInterface
*/
public function __invoke(Event $event, ClientInterface $client, $input, $length, $isError)
{
$this->buffer .= $input;
$request = $this->getServiceManager()->get('Request');
$response = $this->getServiceManager()->get('Response');
$response->on(['ready'], function (Event $event) use($client, $request) {
/** @var Response $response */
$response = $event->getEventEmitter();
$response->send($client);
});
while (strlen($this->buffer) > 2) {
$offset = 0;
$tmp = ord(substr($this->buffer, $offset++, 1));
// $fin = (bool) (($tmp & 0x80) >> 7);
// $rsv = (($tmp & 0x70) >> 4);
// $opcode = ($tmp & 0x0F);
// if ($rsv !== 0) {
// throw new Exception\BadRequestException('RSV bits defined while unsupported by any extension');
// }
/*
* TODO: $opcode possible values:
*
* %x0 denotes a continuation frame
* %x1 denotes a text frame
* %x2 denotes a binary frame
* %x3-7 are reserved for further non-control frames
* %x8 denotes a connection close
* %x9 denotes a ping
* %xA denotes a pong
* %xB-F are reserved for further control frames
*/
$tmp = ord(substr($this->buffer, $offset++, 1));
$maskBit = (bool) ($tmp & 0x80);
$lengthMarker = $tmp & 0x7f;
if ($lengthMarker == 126) {
$length = $this->_parseInt($offset, 2);
$offset += 2;
if ($length <= 126) {
throw new Exception\BadRequestException('Wrong message length.');
}
} else {
if ($lengthMarker == 127) {
$length = $this->_parseInt($offset, 8);
$offset += 8;
if ($length <= 127) {
throw new Exception\BadRequestException('Wrong message length.');
}
} else {
$length = $lengthMarker;
}
}
$mask = [];
if ($maskBit) {
$mask = [ord(substr($this->buffer, $offset++, 1)) & 0xff, ord(substr($this->buffer, $offset++, 1)) & 0xff, ord(substr($this->buffer, $offset++, 1)) & 0xff, ord(substr($this->buffer, $offset++, 1)) & 0xff];
// $this->getLogger()->warning('Client data should be masked.');
}
if (strlen($this->buffer) < $offset + $length) {
break;
}
$rawPayload = substr($this->buffer, $offset, $length);
$this->buffer = substr($this->buffer, $offset + $length);
if ($maskBit) {
$payload = '';
for ($i = 0; $i < $length; $i++) {
$payload .= chr(ord($rawPayload[$i]) ^ $mask[$i % 4]);
}
} else {
$payload = $rawPayload;
}
$request->enqueue($payload);
}
$this->emit(new Event('data'), [$client, $request, $response]);
return $this;
}
/**
* @param Event $event
* @param ClientInterface $client
* @param string $buffer
* @param int $length
* @param bool $isError
* @return RequestHandlerInterface
*/
public function __invoke(Event $event, ClientInterface $client, $buffer, $length, $isError)
{
echo 'HTTP: Analyzing TCP request.' . PHP_EOL;
if ($isError) {
$response = (new Response())->setReturnCode(500, 'Internal Server Error')->setBody('Server Error')->setHeader('Connection', 'close');
$this->emit(new Event('error'), [$response, 500, LogLevel::ERROR]);
$response->send($client);
return $this;
}
if (($request = $this->initRequest($client, $buffer, $length)) === null) {
return $this;
}
if (($response = $this->initResponse($client)) === null) {
return $this;
}
if ($this->setupUpgrades($client, $request, $response)) {
return $this;
}
$response->on(['ready'], function (Event $event) use($client, $request) {
/** @var ResponseInterface $response */
$response = $event->getEventEmitter();
$response->send($client);
});
// FIXME: what if the request was chunked?
// FIXME: what if the request does not close after response?
$this->emit(new Event('request'), [$client, $request, $response]);
return $this;
}
