├── .gitignore
├── Makefile
├── README.md
├── index.html
└── wss.py
/.gitignore:
--------------------------------------------------------------------------------
1 | venv
2 | *.pyc
3 | *.pyo
4 |
--------------------------------------------------------------------------------
/Makefile:
--------------------------------------------------------------------------------
1 | web:
2 | python -m http.server 5001
3 |
4 | wss:
5 | python wss.py
6 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | arws
2 | ===
3 |
4 | Arpit's own WebSocket Server.
5 |
6 | # Running it
7 |
8 | ## Running the WebSocket Server
9 |
10 | ```
11 | make wss
12 | ```
13 |
14 |
15 | ## Running the frontend website
16 |
17 | ```
18 | make web
19 | ```
20 |
21 | ### References
22 |
23 | - https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API/Writing_WebSocket_servers#the_websocket_handshake
24 |
--------------------------------------------------------------------------------
/index.html:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
15 |
16 |
17 |
--------------------------------------------------------------------------------
/wss.py:
--------------------------------------------------------------------------------
1 | import socket
2 |
3 | serversocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
4 | serversocket.bind(('localhost', 5000))
5 |
6 | # queue up as many as 5 connect requests (the normal max) before refusing outside connections
7 | serversocket.listen(5)
8 |
9 | server_response_400 = """HTTP/1.1 400 Bad Request
10 | Content-Type: text/html; charset=utf-8
11 | Content-Length: 12
12 |
13 | Bad Request
14 | """
15 |
16 | server_response_wss = """HTTP/1.1 101 Switching Protocols
17 | Upgrade: websocket
18 | Connection: Upgrade
19 | Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=
20 | """
21 |
22 | while True:
23 | (clientsocket, address) = serversocket.accept()
24 | print("client connected on", address)
25 |
26 | # Client handshake request
27 | # The client will send a pretty standard HTTP request with headers that looks like this
28 | # (the HTTP version must be 1.1 or greater, and the method must be GET)
29 | #
30 | #
31 | # GET /socket.io/?EIO=4&transport=polling&t=Nl5IOYG HTTP/1.1
32 | # Host: localhost:5000
33 | # User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0
34 | # Accept: */*
35 | # Accept-Language: en-US,en;q=0.5
36 | # Accept-Encoding: gzip, deflate
37 | # Origin: http://localhost:5001
38 | # Connection: keep-alive
39 | # Referer: http://localhost:5001/
40 | # Sec-Fetch-Dest: empty
41 | # Sec-Fetch-Mode: cors
42 | # Sec-Fetch-Site: cross-site
43 | request = clientsocket.recv(1024).decode("utf-8")
44 | print(request)
45 |
46 | # When the server receives the handshake request, it should send back a
47 | # special response that indicates that the protocol will be changing
48 | # from HTTP to WebSocket.
49 | clientsocket.send(server_response_wss.encode('ascii'))
50 |
51 |
52 | clientsocket.close()
53 |
--------------------------------------------------------------------------------