ms-objectid.py

import requests
import jwt
import argparse
import sys


def get_exernal_object_id(target, token):
    headers = {
        'Host': 'teams.microsoft.com',
        'Authorization': f"Bearer {token}",
        'X-Ms-Client-Version': '1415/1.0.0.2023021323',
    }

    r = requests.get(f"https://teams.microsoft.com/api/mt/emea/beta/users/{target}/externalsearchv3?includeTFLUsers=true", headers=headers)

    try:
        return r.json()[0]["objectId"]
    except (IndexError, KeyError):
        return f"Object ID could not be found for {target}"


def get_internal_object_id(target, token):
    headers = {
        'Host': 'teams.microsoft.com',
        'Authorization': f"Bearer {token}",
        'Content-Length': str(len(target)),
    }

    r = requests.post('https://teams.microsoft.com/api/mt/emea/beta/users/searchV2?includeDLs=true&includeBots=true&enableGuest=true&source=allTrue&skypeTeamsInfo=true', headers=headers, data=target)

    try:
        return r.json()["value"][0]["objectId"]
    except IndexError:
        return f"Object ID could not be found for {target}"


def main():
    parser = argparse.ArgumentParser(usage="%(prog)s [options]")
    parser.add_argument("--jwt", "-j",
                        metavar="PATH",
                        required=True,
                        help="Path to file containing your Microsoft Teams JWT token")

    parser.add_argument("--target", "-t",
                        metavar="EMAIL",
                        required=True,
                        help="Email address of the target you'd like to get the object id for")

    args = parser.parse_args()

    jwt_file = args.jwt
    target = args.target

    try:
        with open(jwt_file) as f:
            token = f.read().strip()
    except FileNotFoundError:
        print(f"ERROR: {jwt_file} could not be found")
        sys.exit()

    try:
        decoded_jwt = jwt.decode(token, audience="https://api.spaces.skype.com", options={"verify_signature": False})
    except jwt.exceptions.DecodeError:
        print("ERROR: Invalid JWT token")
        sys.exit()

    # Your email address from the JWT token
    email_addr = decoded_jwt["unique_name"]
    email_addr_domain = email_addr.split("@")[1]
    target_email_addr_domain = target.split("@")[1]

    if email_addr_domain == target_email_addr_domain:
        object_id = get_internal_object_id(target, token)
    else:
        object_id = get_exernal_object_id(target, token)

    print(object_id)


if __name__ == "__main__":
    main()