Files
bnet_auth_tool/bnet_auth_tool.py
T
Nighthawk f4427427a8 Code update.
Refactors some of the code, making it cleaner and more concise. 

Added an offline method of reconstructing TOTP keys and QR code provided the user has the required information.
2025-01-21 22:33:20 -05:00

360 lines
13 KiB
Python

import json
import base64
import binascii
import requests
from pathlib import Path
import sys
import qrcode
from typing import Any, Dict
print(r"""
____ _ _ _ _
| __ ) __ _ | |_ | |_ | | ___ _ __ ___ | |_
| _ \ / _` || __|| __|| | / _ \ | '_ \ / _ \| __|
| |_) || (_| || |_ | |_ | || __/ _ | | | || __/| |_
|____/ \__,_| \__| \__||_| \___|(_)|_| |_| \___| \__|
_ _ _ _ _ _
/ \ _ _ | |_ | |__ ___ _ __ | |_ (_) ___ __ _ | |_ ___ _ __
/ _ \ | | | || __|| '_ \ / _ \| '_ \ | __|| | / __| / _` || __| / _ \ | '__|
/ ___ \ | |_| || |_ | | | || __/| | | || |_ | || (__ | (_| || |_ | (_) || |
/_/ \_\ \__,_| \__||_| |_| \___||_| |_| \__||_| \___| \__,_| \__| \___/ |_|
_____ _
|_ _| ___ ___ | |
| | / _ \ / _ \ | |
| | | (_) || (_) || |
|_| \___/ \___/ |_|
""")
print("Battle.net Authenticator Tool - by Nighthawk42 - Version 1.1 (01/21/2025)")
class Config:
"""Configuration for Battle.net Authenticator API."""
BASE_URL = "https://authenticator-rest-api.bnet-identity.blizzard.net/v1/authenticator"
SSO_URL = "https://oauth.battle.net/oauth/sso"
CLIENT_ID = "baedda12fe054e4abdfc3ad7bdea970a"
class BattleNetAuthenticator:
"""
Handles Battle.net Authenticator operations, including attaching an authenticator,
retrieving device secrets, and generating TOTP keys.
"""
def __init__(self):
self.bearer_token = None
@staticmethod
def save_plain_json(filename: str, data: Dict[str, Any]) -> None:
"""
Saves data to a JSON file, prompting to overwrite if the file already exists.
"""
if Path(filename).exists():
while True:
overwrite = input(f"{filename} already exists. Do you want to overwrite it? (y/n): ").strip().lower()
if overwrite in {"y", "n"}:
break
print("Invalid input. Please enter 'y' or 'n'.")
if overwrite != "y":
print("Data not saved.")
return
try:
with open(filename, "w") as f:
json.dump(data, f, indent=4)
print(f"Data saved to {filename}.")
print("IMPORTANT: Ensure you securely back up this file and its contents.")
except IOError as e:
print(f"Failed to save data to {filename}: {e}")
@staticmethod
def load_json(filename: str) -> Dict[str, Any]:
"""
Loads data from a JSON file.
"""
try:
with open(filename, "r") as f:
data = json.load(f)
return data
except IOError as e:
print(f"Failed to load data from {filename}: {e}")
return {}
@staticmethod
def convert_secret_to_base32(secret: str) -> str:
"""
Converts a device secret to base32 encoding.
"""
try:
hex_secret = binascii.unhexlify(secret)
return base64.b32encode(hex_secret).decode("utf-8").replace("=", "")
except (binascii.Error, TypeError) as e:
raise Exception(f"Failed to convert secret: {e}")
@staticmethod
def generate_qr_code(totp_url: str, filename: str) -> None:
"""
Generates a QR code for the TOTP URL and saves it as an image file.
"""
qr = qrcode.QRCode(
version=1,
error_correction=qrcode.constants.ERROR_CORRECT_L,
box_size=10,
border=4,
)
qr.add_data(totp_url)
qr.make(fit=True)
img = qr.make_image(fill='black', back_color='white')
img.save(f"{filename}.png")
print(f"QR code saved as {filename}.png")
def reconstruct_totp_from_json(self) -> None:
"""
Reconstructs the TOTP key and QR code from a JSON file or prompts the user for information.
"""
json_files = list(Path('.').glob('*.json'))
if len(json_files) == 1:
filename = json_files[0]
elif len(json_files) > 1:
print("Multiple JSON files found:")
for i, file in enumerate(json_files, 1):
print(f"{i}. {file}")
choice = input("Enter the number of the file to use, or type 'manual' to enter information manually: ").strip()
if choice.lower() == 'manual':
filename = None
else:
try:
index = int(choice) - 1
filename = json_files[index]
except (ValueError, IndexError):
print("Invalid choice.")
return
else:
filename = None
if filename:
data = self.load_json(filename)
if not data:
print("Failed to load JSON file. Prompting for manual input.")
data = {}
else:
data = {}
serial = data.get("serial") or input("Enter Serial: ").strip()
restore_code = data.get("restoreCode") or input("Enter Restore Code: ").strip()
device_secret = data.get("deviceSecret") or input("Enter Device Secret: ").strip()
if not serial or not restore_code or not device_secret:
print("Incomplete data provided.")
return
base32_secret = self.convert_secret_to_base32(device_secret)
totp_url = f"otpauth://totp/Battle.net?secret={base32_secret}&digits=8"
print(f"TOTP URL: {totp_url}")
print("\nImportant: When importing the key, use these settings:")
print(" - Digits: 8")
print(" - Algorithm: SHA1")
print(" - Timeout: 30 seconds")
self.generate_qr_code(totp_url, f"reconstructed_{serial}")
input("\nPress any key to return to the main menu...")
def get_bearer_token(self, session_token):
"""
Retrieves the Bearer Token using the provided Session Token.
"""
payload = {
"client_id": Config.CLIENT_ID,
"grant_type": "client_sso",
"scope": "auth.authenticator",
"token": session_token,
}
headers = {"content-type": "application/x-www-form-urlencoded; charset=utf-8"}
try:
response = requests.post(Config.SSO_URL, data=payload, headers=headers)
response.raise_for_status()
self.bearer_token = response.json().get("access_token")
return self.bearer_token
except requests.exceptions.RequestException as e:
raise Exception(f"Failed to fetch bearer token: {e}")
def attach_authenticator(self):
"""
Attaches a new authenticator and returns its details.
"""
headers = {
"accept": "application/json",
"Authorization": f"Bearer {self.bearer_token}",
}
try:
response = requests.post(Config.BASE_URL, headers=headers)
response.raise_for_status()
return response.json()
except requests.exceptions.RequestException as e:
raise Exception(f"Failed to attach authenticator: {e}")
def retrieve_device_secret(self, serial, restore_code):
"""
Retrieves the device secret for an existing authenticator using its serial and restore code.
"""
headers = {
"accept": "application/json",
"Content-Type": "application/json",
"Authorization": f"Bearer {self.bearer_token}",
}
payload = {"serial": serial, "restoreCode": restore_code}
try:
response = requests.post(f"{Config.BASE_URL}/device", headers=headers, json=payload)
response.raise_for_status()
return response.json()
except requests.exceptions.RequestException as e:
raise Exception(f"Failed to retrieve device secret: {e}")
def show_session_token_instructions():
"""
Displays instructions for retrieving the Battle.net Session Token.
"""
print("\nHow to Get the Session Token:")
print("1. Open your web browser and navigate to:")
print(" https://account.battle.net/login/en/?ref=localhost")
print("2. Log in to your Battle.net account.")
print("3. After logging in, you'll see a 404 error page.")
print("4. Look at the URL in your browser's address bar.")
print(" The Session Token is the value after `ST=`.")
print(" Example: US-abcdef12345678 or EU-12345678abcdef")
print("5. Copy the Session Token and paste it into this tool when prompted.\n")
def graceful_exit():
"""
Gracefully exits the program with a backup reminder.
"""
print("\nExiting the program. Ensure you have securely backed up your data.")
sys.exit(0)
def interactive_cli():
"""
Main interactive CLI for the Battle.net Authenticator Tool.
"""
authenticator = BattleNetAuthenticator()
while True:
print("\nChoose an action:")
print("1. Attach a new authenticator")
print("2. Retrieve existing device secret")
print("3. Reconstruct TOTP from JSON")
print("4. Exit")
choice = input("Enter your choice (1/2/3/4): ").strip()
if choice == "1":
show_session_token_instructions()
session_token = input("Enter your Session Token (or type 'exit' to quit): ").strip()
if session_token.lower() == "exit":
graceful_exit()
if not session_token:
print("Session Token is required!")
continue
try:
print("Fetching Bearer Token...")
bearer_token = authenticator.get_bearer_token(session_token)
print(f"Bearer Token: {bearer_token}")
print("Attaching Authenticator...")
device_info = authenticator.attach_authenticator()
serial = device_info["serial"]
restore_code = device_info["restoreCode"]
device_secret = device_info["deviceSecret"]
print(f"Serial: {serial}")
print(f"Restore Code: {restore_code}")
print("Generating TOTP URL...")
base32_secret = authenticator.convert_secret_to_base32(device_secret)
totp_url = f"otpauth://totp/Battle.net?secret={base32_secret}&digits=8"
print(f"TOTP URL: {totp_url}")
print("\nImportant: When importing the key, use these settings:")
print(" - Digits: 8")
print(" - Algorithm: SHA1")
print(" - Timeout: 30 seconds")
# Save data and generate QR code
filename = f"authenticator_{serial}"
authenticator.save_plain_json(f"{filename}.json", device_info)
authenticator.generate_qr_code(totp_url, filename)
except Exception as e:
print(f"Error: {e}")
graceful_exit()
elif choice == "2":
show_session_token_instructions()
session_token = input("Enter your Session Token (or type 'exit' to quit): ").strip()
if session_token.lower() == "exit":
graceful_exit()
if not session_token:
print("Session Token is required!")
continue
try:
print("Fetching Bearer Token...")
bearer_token = authenticator.get_bearer_token(session_token)
print(f"Bearer Token: {bearer_token}")
serial = input("Enter Serial: ").strip()
restore_code = input("Enter Restore Code: ").strip()
if not serial or not restore_code:
print("Serial and Restore Code are required!")
continue
print("Retrieving Device Secret...")
device_info = authenticator.retrieve_device_secret(serial, restore_code)
device_secret = device_info["deviceSecret"]
print(f"Device Secret: {device_secret}")
print("Generating TOTP URL...")
base32_secret = authenticator.convert_secret_to_base32(device_secret)
totp_url = f"otpauth://totp/Battle.net?secret={base32_secret}&digits=8"
print(f"TOTP URL: {totp_url}")
print("\nImportant: When importing the key, use these settings:")
print(" - Digits: 8")
print(" - Algorithm: SHA1")
print(" - Timeout: 30 seconds")
# Save data and generate QR code
filename = f"authenticator_{serial}"
authenticator.save_plain_json(f"{filename}.json", {"serial": serial, "restoreCode": restore_code, "deviceSecret": device_secret})
authenticator.generate_qr_code(totp_url, filename)
except Exception as e:
print(f"Error: {e}")
graceful_exit()
elif choice == "3":
authenticator.reconstruct_totp_from_json()
elif choice == "4":
graceful_exit()
else:
print("Invalid choice!")
graceful_exit()
if __name__ == "__main__":
try:
interactive_cli()
except KeyboardInterrupt:
graceful_exit()