porchlight/tests/test_admin_groups_validation.py
Johan Lundberg 407db57279
fix(security): reset session on login to prevent fixation
Both password and WebAuthn login wrote the authenticated identity onto the
existing pre-auth session, so a fixed/planted session could be elevated to an
authenticated one. Add _establish_authenticated_session() which clears the
session (preserving only a pending OIDC authorization request) before setting
the identity, used by both login paths.

Tests that reused a pre-login CSRF token now re-fetch it after login, matching
real client behavior.

Refs: porchlight-vxr

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-04 14:23:08 +02:00

87 lines
2.8 KiB
Python

from datetime import UTC, datetime
import pytest
from httpx import AsyncClient
from porchlight.authn.password import PasswordHasher, PasswordService
from porchlight.models import PasswordCredential, User
from tests.conftest import get_csrf_token
async def _setup_admin_and_target(client: AsyncClient) -> tuple[str, str]:
"""Create admin + target user, login as admin, return (token, target_userid)."""
app = client._transport.app
user_repo = app.state.user_repo
cred_repo = app.state.credential_repo
admin = User(
userid="admin-g01",
username="admin_g",
groups=["admin", "users"],
created_at=datetime.now(UTC),
updated_at=datetime.now(UTC),
)
await user_repo.create(admin)
target = User(
userid="target-g01",
username="target_g",
groups=["users"],
created_at=datetime.now(UTC),
updated_at=datetime.now(UTC),
)
await user_repo.create(target)
svc = PasswordService(hasher=PasswordHasher(time_cost=1, memory_cost=8192))
await cred_repo.create_password(PasswordCredential(user_id=admin.userid, password_hash=svc.hash("AdminPass123!")))
token = await get_csrf_token(client)
await client.post(
"/login/password",
data={"username": "admin_g", "password": "AdminPass123!"},
headers={"HX-Request": "true", "X-CSRF-Token": token},
)
# Login resets the session (fixation defense); fetch a fresh CSRF token.
token = await get_csrf_token(client)
return token, target.userid
@pytest.mark.asyncio
async def test_valid_groups(client: AsyncClient) -> None:
token, userid = await _setup_admin_and_target(client)
response = await client.post(
f"/admin/users/{userid}/groups",
data={"groups": "users, staff"},
headers={"X-CSRF-Token": token},
)
assert "Groups updated" in response.text
app = client._transport.app
user = await app.state.user_repo.get_by_userid(userid)
assert sorted(user.groups) == ["staff", "users"]
@pytest.mark.asyncio
async def test_invalid_group_name_rejected(client: AsyncClient) -> None:
token, userid = await _setup_admin_and_target(client)
response = await client.post(
f"/admin/users/{userid}/groups",
data={"groups": "users, Bad Group!"},
headers={"X-CSRF-Token": token},
)
assert "alert" in response.text
@pytest.mark.asyncio
async def test_empty_groups_clears(client: AsyncClient) -> None:
token, userid = await _setup_admin_and_target(client)
response = await client.post(
f"/admin/users/{userid}/groups",
data={"groups": ""},
headers={"X-CSRF-Token": token},
)
assert "Groups updated" in response.text
app = client._transport.app
user = await app.state.user_repo.get_by_userid(userid)
assert user.groups == []