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synapse/tests/api/test_auth.py
V02460 05489d89c6
Specify IP subnet literals in canonical form (#16953)
This is needed, because the netaddr package removed support for the
implicit prefix form in version 1.0.0:
https://github.com/netaddr/netaddr/pull/360
2024-03-19 17:19:12 +00:00

536 lines
23 KiB
Python

#
# 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 unittest.mock import AsyncMock, Mock
import pymacaroons
from twisted.test.proto_helpers import MemoryReactor
from synapse.api.auth.internal import InternalAuth
from synapse.api.auth_blocking import AuthBlocking
from synapse.api.constants import UserTypes
from synapse.api.errors import (
AuthError,
Codes,
InvalidClientTokenError,
MissingClientTokenError,
ResourceLimitError,
)
from synapse.appservice import ApplicationService
from synapse.server import HomeServer
from synapse.storage.databases.main.registration import TokenLookupResult
from synapse.types import Requester, UserID
from synapse.util import Clock
from tests import unittest
from tests.unittest import override_config
from tests.utils import mock_getRawHeaders
class AuthTestCase(unittest.HomeserverTestCase):
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
self.store = Mock()
# type-ignore: datastores is None until hs.setup() is called---but it'll
# have been called by the HomeserverTestCase machinery.
hs.datastores.main = self.store # type: ignore[union-attr]
hs.get_auth_handler().store = self.store
self.auth = InternalAuth(hs)
# AuthBlocking reads from the hs' config on initialization. We need to
# modify its config instead of the hs'
self.auth_blocking = AuthBlocking(hs)
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 = AsyncMock(return_value=None)
self.store.is_support_user = AsyncMock(return_value=False)
def test_get_user_by_req_user_valid_token(self) -> None:
user_info = TokenLookupResult(
user_id=self.test_user, token_id=5, device_id="device"
)
self.store.get_user_by_access_token = AsyncMock(return_value=user_info)
self.store.mark_access_token_as_used = AsyncMock(return_value=None)
self.store.get_user_locked_status = AsyncMock(return_value=False)
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.assertEqual(requester.user.to_string(), self.test_user)
def test_get_user_by_req_user_bad_token(self) -> None:
self.store.get_user_by_access_token = AsyncMock(return_value=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) -> None:
user_info = TokenLookupResult(user_id=self.test_user, token_id=5)
self.store.get_user_by_access_token = AsyncMock(return_value=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) -> None:
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 = AsyncMock(return_value=None)
request = Mock(args={})
request.getClientAddress.return_value.host = "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.assertEqual(requester.user.to_string(), self.test_user)
def test_get_user_by_req_appservice_valid_token_good_ip(self) -> None:
from netaddr import IPSet
app_service = Mock(
token="foobar",
url="a_url",
sender=self.test_user,
ip_range_whitelist=IPSet(["192.168.0.0/16"]),
)
self.store.get_app_service_by_token = Mock(return_value=app_service)
self.store.get_user_by_access_token = AsyncMock(return_value=None)
request = Mock(args={})
request.getClientAddress.return_value.host = "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.assertEqual(requester.user.to_string(), self.test_user)
def test_get_user_by_req_appservice_valid_token_bad_ip(self) -> None:
from netaddr import IPSet
app_service = Mock(
token="foobar",
url="a_url",
sender=self.test_user,
ip_range_whitelist=IPSet(["192.168.0.0/16"]),
)
self.store.get_app_service_by_token = Mock(return_value=app_service)
self.store.get_user_by_access_token = AsyncMock(return_value=None)
request = Mock(args={})
request.getClientAddress.return_value.host = "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) -> None:
self.store.get_app_service_by_token = Mock(return_value=None)
self.store.get_user_by_access_token = AsyncMock(return_value=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) -> None:
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 = AsyncMock(return_value=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) -> None:
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)
class FakeUserInfo:
is_guest = False
self.store.get_user_by_id = AsyncMock(return_value=FakeUserInfo())
self.store.get_user_by_access_token = AsyncMock(return_value=None)
request = Mock(args={})
request.getClientAddress.return_value.host = "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.assertEqual(
requester.user.to_string(), masquerading_user_id.decode("utf8")
)
def test_get_user_by_req_appservice_valid_token_bad_user_id(self) -> None:
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 = AsyncMock(return_value=None)
request = Mock(args={})
request.getClientAddress.return_value.host = "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)
@override_config({"experimental_features": {"msc3202_device_masquerading": True}})
def test_get_user_by_req_appservice_valid_token_valid_device_id(self) -> None:
"""
Tests that when an application service passes the device_id URL parameter
with the ID of a valid device for the user in question,
the requester instance tracks that device ID.
"""
masquerading_user_id = b"@doppelganger:matrix.org"
masquerading_device_id = b"DOPPELDEVICE"
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 = AsyncMock(return_value={"is_guest": False})
self.store.get_user_by_access_token = AsyncMock(return_value=None)
# This also needs to just return a truth-y value
self.store.get_device = AsyncMock(return_value={"hidden": False})
request = Mock(args={})
request.getClientAddress.return_value.host = "127.0.0.1"
request.args[b"access_token"] = [self.test_token]
request.args[b"user_id"] = [masquerading_user_id]
request.args[b"org.matrix.msc3202.device_id"] = [masquerading_device_id]
request.requestHeaders.getRawHeaders = mock_getRawHeaders()
requester = self.get_success(self.auth.get_user_by_req(request))
self.assertEqual(
requester.user.to_string(), masquerading_user_id.decode("utf8")
)
self.assertEqual(requester.device_id, masquerading_device_id.decode("utf8"))
@override_config({"experimental_features": {"msc3202_device_masquerading": True}})
def test_get_user_by_req_appservice_valid_token_invalid_device_id(self) -> None:
"""
Tests that when an application service passes the device_id URL parameter
with an ID that is not a valid device ID for the user in question,
the request fails with the appropriate error code.
"""
masquerading_user_id = b"@doppelganger:matrix.org"
masquerading_device_id = b"NOT_A_REAL_DEVICE_ID"
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 = AsyncMock(return_value={"is_guest": False})
self.store.get_user_by_access_token = AsyncMock(return_value=None)
# This also needs to just return a falsey value
self.store.get_device = AsyncMock(return_value=None)
request = Mock(args={})
request.getClientAddress.return_value.host = "127.0.0.1"
request.args[b"access_token"] = [self.test_token]
request.args[b"user_id"] = [masquerading_user_id]
request.args[b"org.matrix.msc3202.device_id"] = [masquerading_device_id]
request.requestHeaders.getRawHeaders = mock_getRawHeaders()
failure = self.get_failure(self.auth.get_user_by_req(request), AuthError)
self.assertEqual(failure.value.code, 400)
self.assertEqual(failure.value.errcode, Codes.EXCLUSIVE)
def test_get_user_by_req__puppeted_token__not_tracking_puppeted_mau(self) -> None:
self.store.get_user_by_access_token = AsyncMock(
return_value=TokenLookupResult(
user_id="@baldrick:matrix.org",
device_id="device",
token_id=5,
token_owner="@admin:matrix.org",
token_used=True,
)
)
self.store.insert_client_ip = AsyncMock(return_value=None)
self.store.mark_access_token_as_used = AsyncMock(return_value=None)
self.store.get_user_locked_status = AsyncMock(return_value=False)
request = Mock(args={})
request.getClientAddress.return_value.host = "127.0.0.1"
request.args[b"access_token"] = [self.test_token]
request.requestHeaders.getRawHeaders = mock_getRawHeaders()
self.get_success(self.auth.get_user_by_req(request))
self.store.insert_client_ip.assert_called_once()
def test_get_user_by_req__puppeted_token__tracking_puppeted_mau(self) -> None:
self.auth._track_puppeted_user_ips = True
self.store.get_user_by_access_token = AsyncMock(
return_value=TokenLookupResult(
user_id="@baldrick:matrix.org",
device_id="device",
token_id=5,
token_owner="@admin:matrix.org",
token_used=True,
)
)
self.store.get_user_locked_status = AsyncMock(return_value=False)
self.store.insert_client_ip = AsyncMock(return_value=None)
self.store.mark_access_token_as_used = AsyncMock(return_value=None)
request = Mock(args={})
request.getClientAddress.return_value.host = "127.0.0.1"
request.args[b"access_token"] = [self.test_token]
request.requestHeaders.getRawHeaders = mock_getRawHeaders()
self.get_success(self.auth.get_user_by_req(request))
self.assertEqual(self.store.insert_client_ip.call_count, 2)
def test_get_user_from_macaroon(self) -> None:
self.store.get_user_by_access_token = AsyncMock(return_value=None)
user_id = "@baldrick:matrix.org"
macaroon = pymacaroons.Macaroon(
location=self.hs.config.server.server_name,
identifier="key",
key=self.hs.config.key.macaroon_secret_key,
)
# "Legacy" macaroons should not work for regular users not in the database
macaroon.add_first_party_caveat("gen = 1")
macaroon.add_first_party_caveat("type = access")
macaroon.add_first_party_caveat("user_id = %s" % (user_id,))
serialized = macaroon.serialize()
self.get_failure(
self.auth.get_user_by_access_token(serialized), InvalidClientTokenError
)
def test_get_guest_user_from_macaroon(self) -> None:
class FakeUserInfo:
is_guest = True
self.store.get_user_by_id = AsyncMock(return_value=FakeUserInfo())
self.store.get_user_by_access_token = AsyncMock(return_value=None)
user_id = "@baldrick:matrix.org"
macaroon = pymacaroons.Macaroon(
location=self.hs.config.server.server_name,
identifier="key",
key=self.hs.config.key.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.to_string())
self.assertTrue(user_info.is_guest)
self.store.get_user_by_id.assert_called_with(user_id)
def test_blocking_mau(self) -> None:
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_blocking.check_auth_blocking())
self.auth_blocking._limit_usage_by_mau = True
self.store.get_monthly_active_count = AsyncMock(return_value=lots_of_users)
e = self.get_failure(
self.auth_blocking.check_auth_blocking(), ResourceLimitError
)
self.assertEqual(e.value.admin_contact, self.hs.config.server.admin_contact)
self.assertEqual(e.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
self.assertEqual(e.value.code, 403)
# Ensure does not throw an error
self.store.get_monthly_active_count = AsyncMock(
return_value=small_number_of_users
)
self.get_success(self.auth_blocking.check_auth_blocking())
def test_blocking_mau__depending_on_user_type(self) -> None:
self.auth_blocking._max_mau_value = 50
self.auth_blocking._limit_usage_by_mau = True
self.store.get_monthly_active_count = AsyncMock(return_value=100)
# Support users allowed
self.get_success(
self.auth_blocking.check_auth_blocking(user_type=UserTypes.SUPPORT)
)
self.store.get_monthly_active_count = AsyncMock(return_value=100)
# Bots not allowed
self.get_failure(
self.auth_blocking.check_auth_blocking(user_type=UserTypes.BOT),
ResourceLimitError,
)
self.store.get_monthly_active_count = AsyncMock(return_value=100)
# Real users not allowed
self.get_failure(self.auth_blocking.check_auth_blocking(), ResourceLimitError)
def test_blocking_mau__appservice_requester_allowed_when_not_tracking_ips(
self,
) -> None:
self.auth_blocking._max_mau_value = 50
self.auth_blocking._limit_usage_by_mau = True
self.auth_blocking._track_appservice_user_ips = False
self.store.get_monthly_active_count = AsyncMock(return_value=100)
self.store.user_last_seen_monthly_active = AsyncMock(return_value=None)
self.store.is_trial_user = AsyncMock(return_value=False)
appservice = ApplicationService(
"abcd",
id="1234",
namespaces={
"users": [{"regex": "@_appservice.*:sender", "exclusive": True}]
},
sender="@appservice:sender",
)
requester = Requester(
user=UserID.from_string("@appservice:server"),
access_token_id=None,
device_id="FOOBAR",
is_guest=False,
scope=set(),
shadow_banned=False,
app_service=appservice,
authenticated_entity="@appservice:server",
)
self.get_success(self.auth_blocking.check_auth_blocking(requester=requester))
def test_blocking_mau__appservice_requester_disallowed_when_tracking_ips(
self,
) -> None:
self.auth_blocking._max_mau_value = 50
self.auth_blocking._limit_usage_by_mau = True
self.auth_blocking._track_appservice_user_ips = True
self.store.get_monthly_active_count = AsyncMock(return_value=100)
self.store.user_last_seen_monthly_active = AsyncMock(return_value=None)
self.store.is_trial_user = AsyncMock(return_value=False)
appservice = ApplicationService(
"abcd",
id="1234",
namespaces={
"users": [{"regex": "@_appservice.*:sender", "exclusive": True}]
},
sender="@appservice:sender",
)
requester = Requester(
user=UserID.from_string("@appservice:server"),
access_token_id=None,
device_id="FOOBAR",
is_guest=False,
scope=set(),
shadow_banned=False,
app_service=appservice,
authenticated_entity="@appservice:server",
)
self.get_failure(
self.auth_blocking.check_auth_blocking(requester=requester),
ResourceLimitError,
)
def test_reserved_threepid(self) -> None:
self.auth_blocking._limit_usage_by_mau = True
self.auth_blocking._max_mau_value = 1
self.store.get_monthly_active_count = AsyncMock(return_value=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_blocking.check_auth_blocking(), ResourceLimitError)
self.get_failure(
self.auth_blocking.check_auth_blocking(threepid=unknown_threepid),
ResourceLimitError,
)
self.get_success(self.auth_blocking.check_auth_blocking(threepid=threepid))
def test_hs_disabled(self) -> None:
self.auth_blocking._hs_disabled = True
self.auth_blocking._hs_disabled_message = "Reason for being disabled"
e = self.get_failure(
self.auth_blocking.check_auth_blocking(), ResourceLimitError
)
self.assertEqual(e.value.admin_contact, self.hs.config.server.admin_contact)
self.assertEqual(e.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
self.assertEqual(e.value.code, 403)
def test_hs_disabled_no_server_notices_user(self) -> None:
"""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_blocking.check_auth_blocking(), ResourceLimitError
)
self.assertEqual(e.value.admin_contact, self.hs.config.server.admin_contact)
self.assertEqual(e.value.errcode, Codes.RESOURCE_LIMIT_EXCEEDED)
self.assertEqual(e.value.code, 403)
def test_server_notices_mxid_special_cased(self) -> None:
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_blocking.check_auth_blocking(user))