How to retreive valid SID?

[waleedqq]

System: RasperryPi
Fritzbox: 7490,

My Fritzbox GUI url is : http://192.168.178.1/#overview with no SID in the URL. I tried to use the following link https://fritz.box/login_sid.lua?version=2 again this returned 0000000000000000. I tried many scripts until I found this, which returns a SID. When I try this in the Wireshark Fritzbox Interface Options, it errors out telling me this is an invalid SID, how will I fix this?

import requests
import urllib3
import xml.etree.ElementTree as ET
import hashlib


def fb_get_sid(fritzbox, fritz_user, fritz_pw):
    global fb_sid
    if fb_sid == "0000000000000000":
        session = requests.Session()
        http = urllib3.PoolManager()
        data = http.request("get", fritzbox + "/login_sid.lua").data
        tree = ET.fromstring(data)
        fb_sid = tree.findtext("SID")
        if fb_sid == "0000000000000000":
            challenge = tree.findtext("Challenge")
            hash_me = (challenge + "-" + fritz_pw).encode("UTF-16LE")
            hashed = hashlib.md5(hash_me).hexdigest()
            response = challenge + "-" + hashed
            ret = session.get(fritzbox + "/login_sid.lua", params={
                "username": fritz_user,
                "response": response
            }, verify=False, timeout=5)
            tree = ET.fromstring(ret.text)
            fb_sid = tree.findtext("SID")
            if fb_sid == "0000000000000000":
                print("fb_get_sid: Error getting SID")
                exit()
    return fb_sid


routerurl = "http://192.168.178.1"
username = "FOO"  # login user name e.g. fritz1234
password = "BAR"  # login password
fb_sid = "0000000000000000"


def main():
    fb_sid = fb_get_sid(routerurl, username, password)
    print("Session ID", fb_sid)


if __name__ == '__main__':
    main()