test of DPI (Deep Packet Inspection)

test-of-DPI.py

# -*- mode: python; coding: utf-8 -*-

assert str is not bytes

# DPI -- Deep Packet Inspection

def test_dpi(host, data):
    import socket
    ss = socket.create_connection((host, 80), timeout=10.0)
    s = ss.makefile(mode='rwb')
    print('*** family:{} type:{} proto:{} ***'.format(ss.family, ss.type, ss.proto))
    s.write(data)
    s.flush()
    res_buf = b''
    while True:
        try:
            buf = s.read(1)
        except socket.timeout:
            break
        if not buf:
            break
        res_buf += buf
    return res_buf

print(test_dpi(
        'penza.domru.ru',
        b'GET /posts/729413 HTTP/1.1\r\nUser-Agent: xxx123\r\nHost: danbooru.donmai.us\r\n\r\n'
        ))