# -*- coding: utf-8 -*- # Copyright 2015 - 2016 OpenMarket Ltd # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. from unittest.mock import Mock import pymacaroons from synapse.api.auth import Auth from synapse.api.constants import UserTypes from synapse.api.errors import ( AuthError, Codes, InvalidClientCredentialsError, InvalidClientTokenError, MissingClientTokenError, ResourceLimitError, ) from synapse.storage.databases.main.registration import TokenLookupResult from synapse.types import UserID from tests import unittest from tests.test_utils import simple_async_mock from tests.utils import mock_getRawHeaders class AuthTestCase(unittest.HomeserverTestCase): def prepare(self, reactor, clock, hs): self.store = Mock() hs.get_datastore = Mock(return_value=self.store) hs.get_auth_handler().store = self.store self.auth = Auth(hs) # AuthBlocking reads from the hs' config on initialization. We need to # modify its config instead of the hs' self.auth_blocking = self.auth._auth_blocking self.test_user = "@foo:bar" self.test_token = b"_test_token_" # this is overridden for the appservice tests self.store.get_app_service_by_token = Mock(return_value=None) self.store.insert_client_ip = simple_async_mock(None) self.store.is_support_user = simple_async_mock(False) def test_get_user_by_req_user_valid_token(self): user_info = TokenLookupResult( user_id=self.test_user, token_id=5, device_id="device" ) self.store.get_user_by_access_token = simple_async_mock(user_info) request = Mock(args={}) request.args[b"access_token"] = [self.test_token] request.requestHeaders.getRawHeaders = mock_getRawHeaders() requester = self.get_success(self.auth.get_user_by_req(request)) self.assertEquals(requester.user.to_string(), self.test_user) def test_get_user_by_req_user_bad_token(self): self.store.get_user_by_access_token = simple_async_mock(None) request = Mock(args={}) request.args[b"access_token"] = [self.test_token] request.requestHeaders.getRawHeaders = mock_getRawHeaders() f = self.get_failure( self.auth.get_user_by_req(request), InvalidClientTokenError ).value self.assertEqual(f.code, 401) self.assertEqual(f.errcode, "M_UNKNOWN_TOKEN") def test_get_user_by_req_user_missing_token(self): user_info = TokenLookupResult(user_id=self.test_user, token_id=5) self.store.get_user_by_access_token = simple_async_mock(user_info) request = Mock(args={}) request.requestHeaders.getRawHeaders = mock_getRawHeaders() f = self.get_failure( self.auth.get_user_by_req(request), MissingClientTokenError ).value self.assertEqual(f.code, 401) self.assertEqual(f.errcode, "M_MISSING_TOKEN") def test_get_user_by_req_appservice_valid_token(self): app_service = Mock( token="foobar", url="a_url", sender=self.test_user, ip_range_whitelist=None ) self.store.get_app_service_by_token = Mock(return_value=app_service) self.store.get_user_by_access_token = simple_async_mock(None) request = Mock(args={}) request.getClientIP.return_value = "127.0.0.1" request.args[b"access_token"] = [self.test_token] request.requestHeaders.getRawHeaders = mock_getRawHeaders() requester = self.get_success(self.auth.get_user_by_req(request)) self.assertEquals(requester.user.to_string(), self.test_user) def test_get_user_by_req_appservice_valid_token_good_ip(self): from netaddr import IPSet app_service = Mock( token="foobar", url="a_url", sender=self.test_user, ip_range_whitelist=IPSet(["192.168/16"]), ) self.store.get_app_service_by_token = Mock(return_value=app_service) self.store.get_user_by_access_token = simple_async_mock(None) request = Mock(args={}) request.getClientIP.return_value = "192.168.10.10" request.args[b"access_token"] = [self.test_token] request.requestHeaders.getRawHeaders = mock_getRawHeaders() requester = self.get_success(self.auth.get_user_by_req(request)) self.assertEquals(requester.user.to_string(), self.test_user) def test_get_user_by_req_appservice_valid_token_bad_ip(self): from netaddr import IPSet app_service = Mock( token="foobar", url="a_url", sender=self.test_user, ip_range_whitelist=IPSet(["192.168/16"]), ) self.store.get_app_service_by_token = Mock(return_value=app_service) self.store.get_user_by_access_token = simple_async_mock(None) request = Mock(args={}) request.getClientIP.return_value = "131.111.8.42" request.args[b"access_token"] = [self.test_token] request.requestHeaders.getRawHeaders = mock_getRawHeaders() f = self.get_failure( self.auth.get_user_by_req(request), InvalidClientTokenError ).value self.assertEqual(f.code, 401) self.assertEqual(f.errcode, "M_UNKNOWN_TOKEN") def test_get_user_by_req_appservice_bad_token(self): self.store.get_app_service_by_token = Mock(return_value=None) self.store.get_user_by_access_token = simple_async_mock(None) request = Mock(args={}) request.args[b"access_token"] = [self.test_token] request.requestHeaders.getRawHeaders = mock_getRawHeaders() f = self.get_failure( self.auth.get_user_by_req(request), InvalidClientTokenError ).value self.assertEqual(f.code, 401) self.assertEqual(f.errcode, "M_UNKNOWN_TOKEN") def test_get_user_by_req_appservice_missing_token(self): app_service = Mock(token="foobar", url="a_url", sender=self.test_user) self.store.get_app_service_by_token = Mock(return_value=app_service) self.store.get_user_by_access_token = simple_async_mock(None) request = Mock(args={}) request.requestHeaders.getRawHeaders = mock_getRawHeaders() f = self.get_failure( self.auth.get_user_by_req(request), MissingClientTokenError ).value self.assertEqual(f.code, 401) self.assertEqual(f.errcode, "M_MISSING_TOKEN") def test_get_user_by_req_appservice_valid_token_valid_user_id(self): masquerading_user_id = b"@doppelganger:matrix.org" app_service = Mock( token="foobar", url="a_url", sender=self.test_user, ip_range_whitelist=None ) app_service.is_interested_in_user = Mock(return_value=True) self.store.get_app_service_by_token = Mock(return_value=app_service) # This just needs to return a truth-y value. self.store.get_user_by_id = simple_async_mock({"is_guest": False}) self.store.get_user_by_access_token = simple_async_mock(None) request = Mock(args={}) request.getClientIP.return_value = "127.0.0.1" request.args[b"access_token"] = [self.test_token] request.args[b"user_id"] = [masquerading_user_id] request.requestHeaders.getRawHeaders = mock_getRawHeaders() requester = self.get_success(self.auth.get_user_by_req(request)) self.assertEquals( requester.user.to_string(), masquerading_user_id.decode("utf8") ) def test_get_user_by_req_appservice_valid_token_bad_user_id(self): masquerading_user_id = b"@doppelganger:matrix.org" app_service = Mock( token="foobar", url="a_url", sender=self.test_user, ip_range_whitelist=None ) app_service.is_interested_in_user = Mock(return_value=False) self.store.get_app_service_by_token = Mock(return_value=app_service) self.store.get_user_by_access_token = simple_async_mock(None) request = Mock(args={}) request.getClientIP.return_value = "127.0.0.1" request.args[b"access_token"] = [self.test_token] request.args[b"user_id"] = [masquerading_user_id] request.requestHeaders.getRawHeaders = mock_getRawHeaders() self.get_failure(self.auth.get_user_by_req(request), AuthError) def test_get_user_from_macaroon(self): self.store.get_user_by_access_token = simple_async_mock( TokenLookupResult(user_id="@baldrick:matrix.org", device_id="device") ) user_id = "@baldrick:matrix.org" macaroon = pymacaroons.Macaroon( location=self.hs.config.server_name, identifier="key", key=self.hs.config.macaroon_secret_key, ) macaroon.add_first_party_caveat("gen = 1") macaroon.add_first_party_caveat("type = access") macaroon.add_first_party_caveat("user_id = %s" % (user_id,)) user_info = self.get_success( self.auth.get_user_by_access_token(macaroon.serialize()) ) self.assertEqual(user_id, user_info.user_id) # TODO: device_id should come from the macaroon, but currently comes # from the db. self.assertEqual(user_info.device_id, "device") def test_get_guest_user_from_macaroon(self): self.store.get_user_by_id = simple_async_mock({"is_guest": True}) self.store.get_user_by_access_token = simple_async_mock(None) user_id = "@baldrick:matrix.org" macaroon = pymacaroons.Macaroon( location=self.hs.config.server_name, identifier="key", key=self.hs.config.macaroon_secret_key, ) macaroon.add_first_party_caveat("gen = 1") macaroon.add_first_party_caveat("type = access") macaroon.add_first_party_caveat("user_id = %s" % (user_id,)) macaroon.add_first_party_caveat("guest = true") serialized = macaroon.serialize() user_info = self.get_success(self.auth.get_user_by_access_token(serialized)) self.assertEqual(user_id, user_info.user_id) self.assertTrue(user_info.is_guest) self.store.get_user_by_id.assert_called_with(user_id) def test_cannot_use_regular_token_as_guest(self): USER_ID = "@percy:matrix.org" self.store.add_access_token_to_user = simple_async_mock(None) self.store.get_device = simple_async_mock(None) token = self.get_success( self.hs.get_auth_handler().get_access_token_for_user_id( USER_ID, "DEVICE", valid_until_ms=None ) ) self.store.add_access_token_to_user.assert_called_with( user_id=USER_ID, token=token, device_id="DEVICE", valid_until_ms=None, puppets_user_id=None, ) async def get_user(tok): if token != tok: return None return TokenLookupResult( user_id=USER_ID, is_guest=False, token_id=1234, device_id="DEVICE", ) self.store.get_user_by_access_token = get_user self.store.get_user_by_id = simple_async_mock({"is_guest": False}) # check the token works request = Mock(args={}) request.args[b"access_token"] = [token.encode("ascii")] request.requestHeaders.getRawHeaders = mock_getRawHeaders() requester = self.get_success( self.auth.get_user_by_req(request, allow_guest=True) ) self.assertEqual(UserID.from_string(USER_ID), requester.user) self.assertFalse(requester.is_guest) # add an is_guest caveat mac = pymacaroons.Macaroon.deserialize(token) mac.add_first_party_caveat("guest = true") guest_tok = mac.serialize() # the token should *not* work now request = Mock(args={}) request.args[b"access_token"] = [guest_tok.encode("ascii")] request.requestHeaders.getRawHeaders = mock_getRawHeaders() cm = self.get_failure( self.auth.get_user_by_req(request, allow_guest=True), InvalidClientCredentialsError, ) self.assertEqual(401, cm.value.code) self.assertEqual("Guest access token used for regular user", cm.value.msg) self.store.get_user_by_id.assert_called_with(USER_ID) def test_blocking_mau(self): self.auth_blocking._limit_usage_by_mau = False self.auth_blocking._max_mau_value = 50 lots_of_users = 100 small_number_of_users = 1 # Ensure no error thrown self.get_success(self.auth.check_auth_blocking()) self.auth_blocking._limit_usage_by_mau = True self.store.get_monthly_active_count = simple_async_mock(lots_of_users) e = self.get_failure(self.auth.check_auth_blocking(), ResourceLimitError) self.assertEquals(e.value.admin_contact, self.hs.config.admin_contact) self.assertEquals(e.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED) self.assertEquals(e.value.code, 403) # Ensure does not throw an error self.store.get_monthly_active_count = simple_async_mock(small_number_of_users) self.get_success(self.auth.check_auth_blocking()) def test_blocking_mau__depending_on_user_type(self): self.auth_blocking._max_mau_value = 50 self.auth_blocking._limit_usage_by_mau = True self.store.get_monthly_active_count = simple_async_mock(100) # Support users allowed self.get_success(self.auth.check_auth_blocking(user_type=UserTypes.SUPPORT)) self.store.get_monthly_active_count = simple_async_mock(100) # Bots not allowed self.get_failure( self.auth.check_auth_blocking(user_type=UserTypes.BOT), ResourceLimitError ) self.store.get_monthly_active_count = simple_async_mock(100) # Real users not allowed self.get_failure(self.auth.check_auth_blocking(), ResourceLimitError) def test_reserved_threepid(self): self.auth_blocking._limit_usage_by_mau = True self.auth_blocking._max_mau_value = 1 self.store.get_monthly_active_count = simple_async_mock(2) threepid = {"medium": "email", "address": "reserved@server.com"} unknown_threepid = {"medium": "email", "address": "unreserved@server.com"} self.auth_blocking._mau_limits_reserved_threepids = [threepid] self.get_failure(self.auth.check_auth_blocking(), ResourceLimitError) self.get_failure( self.auth.check_auth_blocking(threepid=unknown_threepid), ResourceLimitError ) self.get_success(self.auth.check_auth_blocking(threepid=threepid)) def test_hs_disabled(self): self.auth_blocking._hs_disabled = True self.auth_blocking._hs_disabled_message = "Reason for being disabled" e = self.get_failure(self.auth.check_auth_blocking(), ResourceLimitError) self.assertEquals(e.value.admin_contact, self.hs.config.admin_contact) self.assertEquals(e.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED) self.assertEquals(e.value.code, 403) def test_hs_disabled_no_server_notices_user(self): """Check that 'hs_disabled_message' works correctly when there is no server_notices user. """ # this should be the default, but we had a bug where the test was doing the wrong # thing, so let's make it explicit self.auth_blocking._server_notices_mxid = None self.auth_blocking._hs_disabled = True self.auth_blocking._hs_disabled_message = "Reason for being disabled" e = self.get_failure(self.auth.check_auth_blocking(), ResourceLimitError) self.assertEquals(e.value.admin_contact, self.hs.config.admin_contact) self.assertEquals(e.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED) self.assertEquals(e.value.code, 403) def test_server_notices_mxid_special_cased(self): self.auth_blocking._hs_disabled = True user = "@user:server" self.auth_blocking._server_notices_mxid = user self.auth_blocking._hs_disabled_message = "Reason for being disabled" self.get_success(self.auth.check_auth_blocking(user))