书接上回 https://ask.csdn.net/questions/7798607?answer=53928139
在查看F12里的代码后，我写了个Python程序，代码如下：
import hmac
import hashlib
import requests
import socket
import json
import time as Time
time_ = str(Time.time()).split('.')
time = time_[0] + time_[1][1:4]
ip = socket.gethostbyname(socket.gethostname())
header = {
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36'
}
username = 'USERNAME' #学号
password = 'PASSWORD' #密码
callback = 'jQuery112402537284455192399_' + time
response_0 = requests.get('http://59.68.177.183/srun_portal_pc',params = {
'ac_id' : '7',
'theme' : 'pro'
},headers = header).text
response_1 = requests.get('http://59.68.177.183/v2/srun_portal_message',params = {
'per-page': '100'
},headers = header).text
response_2 = requests.get('http://59.68.177.183/cgi-bin/rad_user_info', params = {
'callback': callback,
'_': int(time)
},headers = header).text
Time.sleep(2)
#此步骤模拟点击登录后的操作，我们只需要此步返回的challenge值
response_3 = requests.get('http://59.68.177.183/cgi-bin/get_challenge', params = {
'callback': callback,
'username': username,
'ip': ip,
'_': time
},headers = header).text
challenge = json.loads(response_3.replace(callback,'').strip('(').strip(')'))['challenge']
#从服务器获取js运算后的结果，因为懒得把js代码转换成python格式
response = json.loads(requests.get('http://localhost:1231',params = {
'token' : challenge,
'info' : '{"username":"'+ username + '","password":"'+ password + '","ip":"' + ip + '","acid":"7","enc_ver":"srun_bx1"}'
}).text)
value = challenge + username
value += challenge + hmac.new(challenge.encode(), password.encode(), hashlib.md5).hexdigest()
value += challenge + '7'
value += challenge + ip
value += challenge + '200'
value += challenge + '1'
value += challenge + '{SRBX1}'+ response['info']
Time.sleep(1)
#模拟登录操作
response_4 = requests.get('http://59.68.177.183/cgi-bin/srun_portal',params = {
'callback': callback,
'action': 'login',
'username': username,
'password': '{MD5}' + hmac.new(challenge.encode(), password.encode(), hashlib.md5).hexdigest(),
'os': 'Windows 10',
'name': 'Windows',
'double_stack': '0',
'chksum': hashlib.sha1(value.encode()).hexdigest(),
'info': '{SRBX1}' + response['info'],
'ac_id': '7',
'ip': 'ip',
'n': '200',
'type': '1',
'_': int(time)+1
},headers = header).text
print(response_1 + '\n')
print(response_2 + '\n')
print(response_3 + '\n')
print(challenge + '\n')
print(str(response) + '\n')
print(response_4 + '\n')
其中localhost:1231是我本地搭建的nodeJS服务器，作用与原网站http://59.68.177.183/static/themes/pro/js/Portal.js?v=2.00.20211105 里如下内容所实现的功能一样
var i = _classPrivateFieldGet(_assertThisInitialized(_this), _encodeUserInfo).call(_assertThisInitialized(_this), {
username: username,
password: password,
ip: ip,
acid: ac_id,
enc_ver: enc
}, token);
下面说下我遇到的问题：
在运行该代码后，仍然无法登录校园网
于是我用Fiddler抓了一下包，仔细对比后发现其发的包与浏览器的包应该是一样的
但response_4的返回值却是：
jQuery112402537284455192399_1664703360098({"client_ip":"10.15.12.253","ecode":0,"error":"sign_error","error_msg":"","online_ip":"","res":"sign_error","srun_ver":"SRunCGIAuthIntfSvr V1.18 B20211105","st":1664703397})
正常应是：（个人信息已处理）
jQuery11240670474958295239_1664706869735({"ServerFlag":0,"ServicesIntfServerIP":"172.26.23.173","ServicesIntfServerPort":"8001","access_token":"9448b99bb0b666b54f3116e4420e76f081a42d85141e38fdeacabc2596a4671f","checkout_date":0,"client_ip":"10.15.12.253","ecode":0,"error":"ok","error_msg":"","online_ip":"10.15.12.253","ploy_msg":"E0000: Login is successful.","real_name":"","remain_flux":0,"remain_times":0,"res":"ok","srun_ver":"SRunCGIAuthIntfSvr V1.18 B20211105","suc_msg":"login_ok","sysver":"1.01.20211105","username":"学号","wallet_balance":0})
所以想问问为什么登录不成功啊，望详细解答
对了，深澜版本号 SRunCGIAuthIntfSvr V1.18 B20211105
可能有用的链接https://blog.csdn.net/qq_41797946/article/details/89417722
新手写的代码，可能不怎么好读，请见谅
