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Add the following section to your munin-node's plugin configuration:
[fritzbox_*]
env.fritzbox_ip [ip address of the fritzbox]
env.fritzbox_username [fritzbox username]
env.fritzbox_password [fritzbox password]
This plugin supports the following munin configuration parameters:
#%# family=auto contrib
#%# capabilities=autoconf
The initial script was inspired by
ERROR: type should be string, got " https://www.linux-tips-and-tricks.de/en/programming/389-read-data-from-a-fritzbox-7390-with-python-and-bash"
framp at linux-tips-and-tricks dot de
New authentication supporting username and password, as well as PBKDF2 support, has been inspired by
ERROR: type should be string, got " https://avm.de/fileadmin/user_upload/Global/Service/Schnittstellen/AVM%20Technical%20Note%20-%20Session%20ID_englisch.pdf"
"""
import hashlib
import sys
import time
import requests
from lxml import etree
USER_AGENT = "Mozilla/5.0 (Macintosh; Intel Mac OS X x.y; rv:10.0) Gecko/20100101 Firefox/10.0"
LOGIN_SID_ROUTE = "/login_sid.lua?version=2"
class LoginState:
def __init__(self, challenge, blocktime):
self.challenge = challenge
self.blocktime = blocktime
self.is_pbkdf2 = challenge.startswith("2$")
def get_session_id(server, username, password, port=80):
""" Get a sid by solving the PBKDF2 (or MD5) challenge-response process. """
box_url = "http://{}:{}".format(server, port)
try:
state = get_login_state(box_url)
except Exception as ex:
raise Exception("failed to get challenge")
if state.is_pbkdf2:
# print("PBKDF2 supported")
challenge_response = calculate_pbkdf2_response(state.challenge, password)
else:
# print("Falling back to MD5")
challenge_response = calculate_md5_response(state.challenge, password)
if state.blocktime > 0:
# print(f"Waiting for {state.blocktime} seconds...")
time.sleep(state.blocktime)
try:
sid = send_response(box_url, username, challenge_response)
except Exception as ex:
raise Exception("failed to login") from ex
if sid == "0000000000000000":
raise Exception("wrong username or password")
return sid
def get_login_state(box_url):
""" Get login state from FRITZ!Box using login_sid.lua?version=2 """
url = box_url + LOGIN_SID_ROUTE
r = requests.get(url)
xml = etree.fromstring(r.content)
challenge = xml.find("Challenge").text
blocktime = int(xml.find("BlockTime").text)
return LoginState(challenge, blocktime)
def calculate_pbkdf2_response(challenge, password):
""" Calculate the response for a given challenge via PBKDF2 """
challenge_parts = challenge.split("$")
# Extract all necessary values encoded into the challenge
iter1 = int(challenge_parts[1])
salt1 = bytes.fromhex(challenge_parts[2])
iter2 = int(challenge_parts[3])
salt2 = bytes.fromhex(challenge_parts[4])
# Hash twice, once with static salt...
# Once with dynamic salt.
hash1 = hashlib.pbkdf2_hmac("sha256", password.encode(), salt1, iter1)
hash2 = hashlib.pbkdf2_hmac("sha256", hash1, salt2, iter2)
return "{}${}".format(challenge_parts[4], hash2.hex())
def calculate_md5_response(challenge, password):
""" Calculate the response for a challenge using legacy MD5 """
response = challenge + "-" + password
# the legacy response needs utf_16_le encoding
response = response.encode("utf_16_le")
md5_sum = hashlib.md5()
md5_sum.update(response)
response = challenge + "-" + md5_sum.hexdigest()
return response
def send_response(box_url, username, challenge_response):