Websocket accept

gistfile1.py

#!/usr/bin/env python3
import socket
import re
from  hashlib import sha1
from base64 import b64encode

HANDSHAKE  = 'HTTP/1.1 101 Switching Protocols\r\n\
Upgrade: websocket\r\n\
Connection: Upgrade\r\n\
Sec-WebSocket-Accept: {0}\r\n\r\n'

sock = socket.socket()
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind(("", 1337))
sock.listen(5)
while True:
    conn, addr = sock.accept()
    data = conn.recv(2048)
    key = re.findall(r'Sec-WebSocket-Key:\s*(\S+)\r\n', data)[0] + '258EAFA5-E914-47DA-95CA-C5AB0DC85B11'
    accept = b64encode(sha1(key).digest())

    conn.send(HANDSHAKE.format(accept))
    conn.close()