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#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright 2015, 2016 OpenMarket Ltd
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
from typing import Optional
from unittest.mock import AsyncMock
import pymacaroons
from twisted.test.proto_helpers import MemoryReactor
from synapse.api.errors import AuthError, ResourceLimitError
from synapse.rest import admin
from synapse.rest.client import login
from synapse.server import HomeServer
from synapse.util import Clock
from tests import unittest
class AuthTestCase(unittest.HomeserverTestCase):
servlets = [
admin.register_servlets,
login.register_servlets,
]
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
self.auth_handler = hs.get_auth_handler()
self.macaroon_generator = hs.get_macaroon_generator()
# MAU tests
# AuthBlocking reads from the hs' config on initialization. We need to
# modify its config instead of the hs'
self.auth_blocking = hs.get_auth_blocking()
self.auth_blocking._max_mau_value = 50
self.small_number_of_users = 1
self.large_number_of_users = 100
self.user1 = self.register_user("a_user", "pass")
def token_login(self, token: str) -> Optional[str]:
body = {
"type": "m.login.token",
"token": token,
}
channel = self.make_request(
"POST",
"/_matrix/client/v3/login",
body,
)
if channel.code == 200:
return channel.json_body["user_id"]
return None
def test_macaroon_caveats(self) -> None:
token = self.macaroon_generator.generate_guest_access_token("a_user")
macaroon = pymacaroons.Macaroon.deserialize(token)
def verify_gen(caveat: str) -> bool:
return caveat == "gen = 1"
def verify_user(caveat: str) -> bool:
return caveat == "user_id = a_user"
def verify_type(caveat: str) -> bool:
return caveat == "type = access"
def verify_nonce(caveat: str) -> bool:
return caveat.startswith("nonce =")
def verify_guest(caveat: str) -> bool:
return caveat == "guest = true"
v = pymacaroons.Verifier()
v.satisfy_general(verify_gen)
v.satisfy_general(verify_user)
v.satisfy_general(verify_type)
v.satisfy_general(verify_nonce)
v.satisfy_general(verify_guest)
v.verify(macaroon, self.hs.config.key.macaroon_secret_key)
def test_login_token_gives_user_id(self) -> None:
token = self.get_success(
self.auth_handler.create_login_token_for_user_id(
self.user1,
duration_ms=(5 * 1000),
)
)
res = self.get_success(self.auth_handler.consume_login_token(token))
self.assertEqual(self.user1, res.user_id)
self.assertEqual(None, res.auth_provider_id)
def test_login_token_reuse_fails(self) -> None:
token = self.get_success(
self.auth_handler.create_login_token_for_user_id(
self.user1,
duration_ms=(5 * 1000),
)
)
self.get_success(self.auth_handler.consume_login_token(token))
self.get_failure(
self.auth_handler.consume_login_token(token),
AuthError,
)
def test_login_token_expires(self) -> None:
token = self.get_success(
self.auth_handler.create_login_token_for_user_id(
self.user1,
duration_ms=(5 * 1000),
)
)
# when we advance the clock, the token should be rejected
self.reactor.advance(6)
self.get_failure(
self.auth_handler.consume_login_token(token),
AuthError,
)
def test_login_token_gives_auth_provider(self) -> None:
token = self.get_success(
self.auth_handler.create_login_token_for_user_id(
self.user1,
auth_provider_id="my_idp",
auth_provider_session_id="11-22-33-44",
duration_ms=(5 * 1000),
)
)
res = self.get_success(self.auth_handler.consume_login_token(token))
self.assertEqual(self.user1, res.user_id)
self.assertEqual("my_idp", res.auth_provider_id)
self.assertEqual("11-22-33-44", res.auth_provider_session_id)
def test_mau_limits_disabled(self) -> None:
self.auth_blocking._limit_usage_by_mau = False
# Ensure does not throw exception
self.get_success(
self.auth_handler.create_access_token_for_user_id(
self.user1, device_id=None, valid_until_ms=None
)
)
token = self.get_success(
self.auth_handler.create_login_token_for_user_id(self.user1)
)
self.assertIsNotNone(self.token_login(token))
def test_mau_limits_exceeded_large(self) -> None:
self.auth_blocking._limit_usage_by_mau = True
self.hs.get_datastores().main.get_monthly_active_count = AsyncMock(
return_value=self.large_number_of_users
)
self.get_failure(
self.auth_handler.create_access_token_for_user_id(
self.user1, device_id=None, valid_until_ms=None
),
ResourceLimitError,
)
self.hs.get_datastores().main.get_monthly_active_count = AsyncMock(
return_value=self.large_number_of_users
)
token = self.get_success(
self.auth_handler.create_login_token_for_user_id(self.user1)
)
self.assertIsNone(self.token_login(token))
def test_mau_limits_parity(self) -> None:
# Ensure we're not at the unix epoch.
self.reactor.advance(1)
self.auth_blocking._limit_usage_by_mau = True
# Set the server to be at the edge of too many users.
self.hs.get_datastores().main.get_monthly_active_count = AsyncMock(
return_value=self.auth_blocking._max_mau_value
)
# If not in monthly active cohort
self.get_failure(
self.auth_handler.create_access_token_for_user_id(
self.user1, device_id=None, valid_until_ms=None
),
ResourceLimitError,
)
token = self.get_success(
self.auth_handler.create_login_token_for_user_id(self.user1)
)
self.assertIsNone(self.token_login(token))
# If in monthly active cohort
self.hs.get_datastores().main.user_last_seen_monthly_active = AsyncMock(
return_value=self.clock.time_msec()
)
self.get_success(
self.auth_handler.create_access_token_for_user_id(
self.user1, device_id=None, valid_until_ms=None
)
)
token = self.get_success(
self.auth_handler.create_login_token_for_user_id(self.user1)
)
self.assertIsNotNone(self.token_login(token))
def test_mau_limits_not_exceeded(self) -> None:
self.auth_blocking._limit_usage_by_mau = True
self.hs.get_datastores().main.get_monthly_active_count = AsyncMock(
return_value=self.small_number_of_users
)
# Ensure does not raise exception
self.get_success(
self.auth_handler.create_access_token_for_user_id(
self.user1, device_id=None, valid_until_ms=None
)
)
self.hs.get_datastores().main.get_monthly_active_count = AsyncMock(
return_value=self.small_number_of_users
)
token = self.get_success(
self.auth_handler.create_login_token_for_user_id(self.user1)
)
self.assertIsNotNone(self.token_login(token))
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