warpgate/tests/test_ssh_user_auth_otp.py
2022-11-11 17:00:23 +01:00

128 lines
4.1 KiB
Python

from asyncio import subprocess
from base64 import b64decode
from uuid import uuid4
import pyotp
from pathlib import Path
from textwrap import dedent
from .api_client import (
api_add_role_to_target,
api_add_role_to_user,
api_admin_session,
api_create_role,
api_create_target,
api_create_user,
)
from .conftest import ProcessManager, WarpgateProcess
from .util import wait_port
class Test:
def test_otp(
self,
processes: ProcessManager,
wg_c_ed25519_pubkey: Path,
otp_key_base32: str,
otp_key_base64: str,
timeout,
shared_wg: WarpgateProcess,
):
ssh_port = processes.start_ssh_server(
trusted_keys=[wg_c_ed25519_pubkey.read_text()]
)
wait_port(ssh_port)
url = f"https://localhost:{shared_wg.http_port}"
with api_admin_session(url) as session:
role = api_create_role(url, session, {"name": f"role-{uuid4()}"})
user = api_create_user(
url,
session,
{
"username": f"user-{uuid4()}",
"credentials": [
{
"kind": "PublicKey",
"key": open("ssh-keys/id_ed25519.pub").read().strip(),
},
{
"kind": "Totp",
"key": list(b64decode(otp_key_base64)),
},
],
"credential_policy": {
"ssh": ["PublicKey", "Totp"],
},
},
)
api_add_role_to_user(url, session, user["id"], role["id"])
ssh_target = api_create_target(
url,
session,
{
"name": f"ssh-{uuid4()}",
"options": {
"kind": "Ssh",
"host": "localhost",
"port": ssh_port,
"username": "root",
"auth": {"kind": "PublicKey"},
},
},
)
api_add_role_to_target(url, session, ssh_target["id"], role["id"])
totp = pyotp.TOTP(otp_key_base32)
script = dedent(
f"""
set timeout {timeout - 5}
spawn ssh {user["username"]}:{ssh_target["name"]}@localhost -p {shared_wg.ssh_port} -o StrictHostKeychecking=no -o UserKnownHostsFile=/dev/null -o IdentitiesOnly=yes -o IdentityFile=ssh-keys/id_ed25519 -o PreferredAuthentications=publickey,keyboard-interactive ls /bin/sh
expect "Two-factor authentication"
sleep 0.5
send "{totp.now()}\\r"
expect {{
"/bin/sh" {{ exit 0; }}
eof {{ exit 1; }}
}}
"""
)
ssh_client = processes.start(
["expect"],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
)
output, stderr = ssh_client.communicate(script.encode(), timeout=timeout)
assert ssh_client.returncode == 0, output + stderr
script = dedent(
f"""
set timeout {timeout - 5}
spawn ssh {user["username"]}:{ssh_target["name"]}@localhost -p {[shared_wg.ssh_port]} -o StrictHostKeychecking=no -o UserKnownHostsFile=/dev/null -o IdentitiesOnly=yes -o IdentityFile=ssh-keys/id_ed25519 -o PreferredAuthentications=publickey,keyboard-interactive ls /bin/sh
expect "Two-factor authentication"
sleep 0.5
send "12345678\\r"
expect {{
"/bin/sh" {{ exit 0; }}
"Two-factor authentication" {{ exit 1; }}
eof {{ exit 1; }}
}}
"""
)
ssh_client = processes.start(
["expect"], stdin=subprocess.PIPE, stdout=subprocess.PIPE
)
output = ssh_client.communicate(script.encode(), timeout=timeout)[0]
assert ssh_client.returncode != 0, output