tunet.py

#! /usr/bin/env python3

import requests
import subprocess
import time

USER = "USERNAME"
MD5 = "YOUR_PASSOWRD_MD5" # echo -n "password" |  md5

AUTH4 = "https://auth4.tsinghua.edu.cn/do_login.php?action=login&username=%s&password={MD5_HEX}%s&ac_id=1" % (USER, MD5)
NET = "https://net.tsinghua.edu.cn/do_login.php?action=login&username=%s&password={MD5_HEX}%s&ac_id=1" % (USER, MD5)


def is_wired():
    p = subprocess.Popen("ifconfig",stdout=subprocess.PIPE)
    out = p.stdout.read().decode()
    return "59.66" in out

def post(url, silent=False):
    if not silent: print(url)
    r = requests.post(url)
    if not silent: print(r.text)
    return r.text

def get(url, silent=False, timeout=None):
    if not silent: print(url)
    r = requests.get(url, timeout=timeout)
    if not silent: print(r.text)
    return r.text

def myip():
    txt = get("https://myip.ipip.net", timeout=5, silent=True)
    ip = txt.split()[1][3:]
    return ip

def is_online():
    try:
        txt = get("https://net.tsinghua.edu.cn/rad_user_info.php", timeout=5, silent=True)
        return USER in txt
    except Exception:
        return False

def login():
    if is_wired():
        post(AUTH4)
        post(NET)
    else:
        post(NET)
    print("IP:", myip())

def keep_login():
    while True:
        if not is_online():
            login()
        time.sleep(10)

if __name__ == '__main__':
    login()