A quick script to login to a Virgin router and download logs

get_virgin_router_logs.py

import requests
import re
import hashlib

router_uri = 'https://192.168.1.1'
password = "abcd1234"

def hash(cleartext):
    m = hashlib.md5()
    m.update(cleartext.encode('utf-8'))
    return m.hexdigest()
    

def load_login_page(session, router_uri):
    login_page_response = session.get(router_uri, verify=False)

    return login_page_response


def extract_dm_cookie(html):
    pattern = r"var dm_cookie='(.*?)'"
    match = re.search(pattern, html, re.MULTILINE)
    return match[1]


def authenticate(session, router_uri, dm_cookie, password, auth_key):
    username = 'vodafone'
    password_hash = hash(password + auth_key)

    request_text = f'''
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
  <soapenv:Header>
    <DMCookie>{dm_cookie}</DMCookie>
  </soapenv:Header>
  <soapenv:Body>
    <cwmp:Login xmlns="">
      <ParameterList>
        <Username>{username}</Username>
        <Password>{password_hash}</Password>
        <AllowRelogin>0</AllowRelogin>
      </ParameterList>
    </cwmp:Login>
  </soapenv:Body>
</soapenv:Envelope>'''

    login_response = session.post(
        f'{router_uri}/data_model.cgi',
        data = request_text,
        headers = {
            'Content-Type': 'text/xml; charset="utf-8"',
            'SOAPAction': 'cwmp:Login',
            'SOAPServer': ''
        },
        verify = False
    )

    return login_response


def logout(session, dm_cookie):
    request_text = f'''
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
  <soapenv:Header>
    <DMCookie>{dm_cookie}</DMCookie>
  </soapenv:Header>
  <soapenv:Body>
    <cwmp:Logout xmlns=""></cwmp:Logout>
  </soapenv:Body>
</soapenv:Envelope>'''

    logout_response = session.post(
        'https://192.168.1.1/data_model.cgi',
        data = request_text,
        headers = {
            'Content-Type': 'text/xml; charset="utf-8"',
            'SOAPAction': 'cwmp:Logout',
            'SOAPServer': ''
        },
        verify = False
    )

    return logout_response


def get_log(session):
    response = session.post(                                                                                      
        url='https://192.168.1.1/main.cgi',                                                                   
        data={                                                                                                
            'action': 'getsyslog',                                                                            
            'buf_idx': '6',                                                                                   
            'lang_id':'uk_en',                                                                                
            'skipped_idx': '' },
        verify=False)                                                                                         

    if response.headers['Content-Type'] != 'text/plain':
        return None
    
    return response.text


def login(session, router_uri, password):
    login_page_response = load_login_page(session, router_uri)
    dm_cookie = extract_dm_cookie(login_page_response.text)

    config_uri = f'{router_uri}/main.cgi?js=rg_config.js'
    config_response = session.get(config_uri, verify=False)

    pattern = r"var auth_key = '(\d+)'"
    match = re.search(pattern, config_response.text, re.MULTILINE)

    auth_key = match[1]

    authenticate(session, router_uri, dm_cookie, password, auth_key)

    return dm_cookie


def main():
    session = requests.Session()

    dm_cookie = login(session, router_uri, password)
    log = get_log(session)
    logout(session, dm_cookie)

    from pprint import pprint
    pprint(log)

    log_lines = log.split('\r\n')
    print(len(log_lines))


if __name__ == '__main__':
    main()