def _send_request(self, method, url, body=None, headers={}, timeout=None):
p = urlparse(url)
if p.hostname and p.hostname != self._host \
or p.scheme == "http" and self._secure \
or p.scheme == "https" and not self._secure \
or p.port and p.port != self._port:
self.fire(NotConnected())
return
resource = p.path
if p.query:
resource += "?" + p.query
headers = Headers([(k, v) for k, v in list(headers.items())])
# Clients MUST include Host header in HTTP/1.1 requests (RFC 2616)
if "Host" not in headers:
headers["Host"] = self._host \
+ (":" + str(self._port)) if self._port else ""
command = "%s %s HTTP/1.1" % (method, resource)
if body is not None:
headers["Content-Length"] = len(body)
message = "%s\r\n%s" % (command, headers)
self._outstanding += 1
if timeout is not None:
self._timer = Timer(timeout, SocketError(ETIMEDOUT), self.channel) \
.register(self)
self.fire(write(message.encode('utf-8')), self._transport)
if body is not None:
self.fire(write(body), self._transport)
def _on_response(self, response):
self._response = response
self._pending -= 1
if response.headers.get("Connection", "").lower() == "close" \
or response.status != 101:
self.fire(close(), self._transport)
raise NotConnected()
self._codec = WebSocketCodec(data=response.body.read(),
channel=self._wschannel).register(self)
def _on_ready(self, event, *args, **kwargs):
p = urlparse(self._url)
if not p.hostname:
raise ValueError("URL must be absolute")
self._host = p.hostname
if p.scheme == "ws":
self._secure = False
self._port = p.port or 80
elif p.scheme == "wss":
self._secure = True
self._port = p.port or 443
else:
raise NotConnected()
self._resource = p.path or "/"
if p.query:
self._resource += "?" + p.query
self.fire(connect(self._host, self._port, self._secure),
self._transport)