Python realizes automatic login of digital Zhongnan campus network

One of the more troublesome aspects of Digital Zhongnan is that you need to log in every day to turn on the computer.

Or every time around midnight, the internet will be disconnected suddenly

This is how uncomfortable it is for one of my lol players to suddenly disconnect

In addition, I want to get started with the Raspberry Pi recently, but I need to open a browser to verify the Internet connection.

Just write it directly into a python script

Ado

The first step is definitely to start with packet capture

First open the campus network login interface

The packet capture tool I use here is Fiddler4, of course, you can also use other software

Then I log in to the campus network once, and the following is the result of the packet capture

Then Fiddler4 save (File -> Save -> All sessions)

Save it and watch it slowly, after all, I am also cute

Then we can see that it is easy to see a request whose URL is /portaNat444/AccessServices/login.

Let's click in to see the content of request and response

 

We found that the accountID in the post request is the account number +%40zndx.inter in the input box, and the password is the encrypted password

brasAddress is the address of the access point device

userIntranerAddress is the network address

Then it’s time to write the script. The network address may be different every time you log in, and the access point device remains unchanged.

So we have to write a method to get it, it's actually very simple, just two lines

def get_ip():
    host_name = socket.gethostname()
    return socket.gethostbyname(host_name)

Then, we copy the request header, which is the third picture of this article

post_header = {
    'Host': '61.137.86.87:8080',
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko Core/1.63.6756.400 QQBrowser/10.2.2518.400',
    'Accept': 'application/json, text/javascript, */*; q=0.01',
    'Accept-Language': 'zh-CN',
    'Accept-Encoding': 'gzip, deflate',
    'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8',
    'X-Requested-With': 'XMLHttpRequest',
    'Referer': 'http://61.137.86.87:8080/portalNat444/index.jsp',
    'Content-Length': '355',
    'Cookie': 'JSESSIONID=2F975DCF3FBC710D56CEA180C4EF8F65',
    'Connection': 'keep-alive',
}

Forget it, put the code directly

#coding=utf-8
import them
import socket
from subprocess import check_output
import urllib.request

def login():
    print("------loading------")
    post_header = {
        'Host': '61.137.86.87:8080',
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko Core/1.63.6756.400 QQBrowser/10.2.2518.400',
        'Accept': 'application/json, text/javascript, */*; q=0.01',
        'Accept-Language': 'zh-CN',
        'Accept-Encoding': 'gzip, deflate',
        'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8',
        'X-Requested-With': 'XMLHttpRequest',
        'Referer': 'http://61.137.86.87:8080/portalNat444/index.jsp',
        'Content-Length': '355',
        'Cookie': 'JSESSIONID=2F975DCF3FBC710D56CEA180C4EF8F65',
        'Connection': 'keep-alive',
    }
    account = "[email protected]"
    account1 = "[email protected]"
    password1 = "55893d79972c1b2b1b31496c5cd0baf6083d321072c5c8f9b73335a359164aa5174acc9d3224bc93619d793b17d8ae5085f9370beb171744f13a62f5f545d3d7c44bf25aee4c4807e8e7dfa5eae1388a5205b3b3ac8a091e9501b42feb532cc4c1c9cceafda36d96533888055de3a4bea1c1c63523daec3e2cb1959b7a5ad86b"
    password = "8312df7aa6c9daae13110210f4df47450858540b654094ff8ae56d1b38aeb182be1e34b7b9b33d5f11fdb6f195c46bc2e227008534cc5980ed12bc1e36a8068034c51b218b3c6c0db83ea03c0d3140ea8d83f2b8ce2706eea68fb430bb86c012c55690cab0f0a5aba5216902640992ab456feee00b84654d690088643dec8949"
    brasAddress = "59df7586"
    ip = get_ip()
    print(ip)
    url = "http://61.137.86.87:8080/portalNat444/AccessServices/login"
    formData = {'accountID': account, 'password': password, 'brasAddress': brasAddress,
                'userIntranetAddress': ip}
    # Convert str type to bytes type
    data = urllib.parse.urlencode(formData).encode("utf-8")
    request = urllib.request.Request(url, data=data,headers=post_header)
    print(urllib.request.urlopen(request).read().decode("utf-8"))

# The second method of obtaining an IP address
def get_ip():
    host_name = socket.gethostname()
    return socket.gethostbyname(host_name)

if __name__ == '__main__':
    login()