diff options
Diffstat (limited to 'netlib/websockets/implementations.py')
-rw-r--r-- | netlib/websockets/implementations.py | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/netlib/websockets/implementations.py b/netlib/websockets/implementations.py new file mode 100644 index 00000000..337c5496 --- /dev/null +++ b/netlib/websockets/implementations.py @@ -0,0 +1,80 @@ +from netlib import tcp +from base64 import b64encode +from StringIO import StringIO +from . import websockets as ws +import struct +import SocketServer +import os + +# Simple websocket client and servers that are used to exercise the functionality in websockets.py +# These are *not* fully RFC6455 compliant + +class WebSocketsEchoHandler(tcp.BaseHandler): + def __init__(self, connection, address, server): + super(WebSocketsEchoHandler, self).__init__(connection, address, server) + self.handshake_done = False + + def handle(self): + while True: + if not self.handshake_done: + self.handshake() + else: + self.read_next_message() + + def read_next_message(self): + decoded = ws.Frame.from_byte_stream(self.rfile.read).decoded_payload + self.on_message(decoded) + + def send_message(self, message): + frame = ws.Frame.default(message, from_client = False) + self.wfile.write(frame.safe_to_bytes()) + self.wfile.flush() + + def handshake(self): + client_hs = ws.read_handshake(self.rfile.read, 1) + key = ws.process_handshake_from_client(client_hs) + response = ws.create_server_handshake(key) + self.wfile.write(response) + self.wfile.flush() + self.handshake_done = True + + def on_message(self, message): + if message is not None: + self.send_message(message) + + +class WebSocketsClient(tcp.TCPClient): + def __init__(self, address, source_address=None): + super(WebSocketsClient, self).__init__(address, source_address) + self.version = "13" + self.client_nounce = ws.create_client_nounce() + self.resource = "/" + + def connect(self): + super(WebSocketsClient, self).connect() + + handshake = ws.create_client_handshake( + self.address.host, + self.address.port, + self.client_nounce, + self.version, + self.resource + ) + + self.wfile.write(handshake) + self.wfile.flush() + + server_handshake = ws.read_handshake(self.rfile.read, 1) + + server_nounce = ws.process_handshake_from_server(server_handshake, self.client_nounce) + + if not server_nounce == ws.create_server_nounce(self.client_nounce): + self.close() + + def read_next_message(self): + return ws.Frame.from_byte_stream(self.rfile.read).payload + + def send_message(self, message): + frame = ws.Frame.default(message, from_client = True) + self.wfile.write(frame.safe_to_bytes()) + self.wfile.flush() |