346 lines
14 KiB
Python
346 lines
14 KiB
Python
# Copyright 2022 Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from typing import Any, Dict
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from unittest.mock import ANY, Mock
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from urllib.parse import parse_qs
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from twisted.test.proto_helpers import MemoryReactor
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from synapse.api.errors import InvalidClientTokenError
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from synapse.server import HomeServer
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from synapse.types import JsonDict
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from synapse.util import Clock
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from tests.test_utils import FakeResponse, get_awaitable_result, simple_async_mock
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from tests.unittest import HomeserverTestCase, skip_unless
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from tests.utils import mock_getRawHeaders
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try:
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import authlib # noqa: F401
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HAS_AUTHLIB = True
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except ImportError:
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HAS_AUTHLIB = False
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# These are a few constants that are used as config parameters in the tests.
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SERVER_NAME = "test"
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ISSUER = "https://issuer/"
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CLIENT_ID = "test-client-id"
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CLIENT_SECRET = "test-client-secret"
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BASE_URL = "https://synapse/"
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SCOPES = ["openid"]
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AUTHORIZATION_ENDPOINT = ISSUER + "authorize"
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TOKEN_ENDPOINT = ISSUER + "token"
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USERINFO_ENDPOINT = ISSUER + "userinfo"
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WELL_KNOWN = ISSUER + ".well-known/openid-configuration"
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JWKS_URI = ISSUER + ".well-known/jwks.json"
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INTROSPECTION_ENDPOINT = ISSUER + "introspect"
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SYNAPSE_ADMIN_SCOPE = "urn:synapse:admin:*"
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MATRIX_USER_SCOPE = "urn:matrix:org.matrix.msc2967.client:api:*"
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MATRIX_GUEST_SCOPE = "urn:matrix:org.matrix.msc2967.client:api:guest"
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DEVICE = "AABBCCDD"
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MATRIX_DEVICE_SCOPE = "urn:matrix:org.matrix.msc2967.client:device:" + DEVICE
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SUBJECT = "abc-def-ghi"
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USERNAME = "test-user"
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async def get_json(url: str) -> JsonDict:
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# Mock get_json calls to handle jwks & oidc discovery endpoints
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if url == WELL_KNOWN:
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# Minimal discovery document, as defined in OpenID.Discovery
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# https://openid.net/specs/openid-connect-discovery-1_0.html#ProviderMetadata
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return {
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"issuer": ISSUER,
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"authorization_endpoint": AUTHORIZATION_ENDPOINT,
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"token_endpoint": TOKEN_ENDPOINT,
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"jwks_uri": JWKS_URI,
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"userinfo_endpoint": USERINFO_ENDPOINT,
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"introspection_endpoint": INTROSPECTION_ENDPOINT,
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"response_types_supported": ["code"],
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"subject_types_supported": ["public"],
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"id_token_signing_alg_values_supported": ["RS256"],
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}
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elif url == JWKS_URI:
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return {"keys": []}
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return {}
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@skip_unless(HAS_AUTHLIB, "requires authlib")
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class MSC3861OAuthDelegation(HomeserverTestCase):
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def default_config(self) -> Dict[str, Any]:
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config = super().default_config()
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config["public_baseurl"] = BASE_URL
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config["oauth_delegation"] = {
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"enabled": True,
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"issuer": ISSUER,
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"client_id": CLIENT_ID,
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"client_auth_method": "client_secret_post",
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"client_secret": CLIENT_SECRET,
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}
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return config
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def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
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self.http_client = Mock(spec=["get_json"])
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self.http_client.get_json.side_effect = get_json
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self.http_client.user_agent = b"Synapse Test"
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hs = self.setup_test_homeserver(proxied_http_client=self.http_client)
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self.auth = hs.get_auth()
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return hs
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def _assertParams(self) -> None:
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"""Assert that the request parameters are correct."""
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params = parse_qs(self.http_client.request.call_args[1]["data"].decode("utf-8"))
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self.assertEqual(params["token"], ["mockAccessToken"])
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self.assertEqual(params["client_id"], [CLIENT_ID])
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self.assertEqual(params["client_secret"], [CLIENT_SECRET])
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def test_inactive_token(self) -> None:
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"""The handler should return a 403 where the token is inactive."""
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self.http_client.request = simple_async_mock(
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return_value=FakeResponse.json(
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code=200,
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payload={"active": False},
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)
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)
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request = Mock(args={})
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request.args[b"access_token"] = [b"mockAccessToken"]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
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self.get_failure(self.auth.get_user_by_req(request), InvalidClientTokenError)
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self.http_client.get_json.assert_called_once_with(WELL_KNOWN)
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self.http_client.request.assert_called_once_with(
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method="POST", uri=INTROSPECTION_ENDPOINT, data=ANY, headers=ANY
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)
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self._assertParams()
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def test_active_no_scope(self) -> None:
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"""The handler should return a 403 where no scope is given."""
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self.http_client.request = simple_async_mock(
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return_value=FakeResponse.json(
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code=200,
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payload={"active": True},
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)
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)
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request = Mock(args={})
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request.args[b"access_token"] = [b"mockAccessToken"]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
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self.get_failure(self.auth.get_user_by_req(request), InvalidClientTokenError)
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self.http_client.get_json.assert_called_once_with(WELL_KNOWN)
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self.http_client.request.assert_called_once_with(
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method="POST", uri=INTROSPECTION_ENDPOINT, data=ANY, headers=ANY
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)
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self._assertParams()
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def test_active_user_no_subject(self) -> None:
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"""The handler should return a 500 when no subject is present."""
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self.http_client.request = simple_async_mock(
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return_value=FakeResponse.json(
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code=200,
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payload={"active": True, "scope": " ".join([MATRIX_USER_SCOPE])},
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)
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)
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request = Mock(args={})
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request.args[b"access_token"] = [b"mockAccessToken"]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
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self.get_failure(self.auth.get_user_by_req(request), InvalidClientTokenError)
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self.http_client.get_json.assert_called_once_with(WELL_KNOWN)
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self.http_client.request.assert_called_once_with(
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method="POST", uri=INTROSPECTION_ENDPOINT, data=ANY, headers=ANY
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)
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self._assertParams()
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def test_active_no_user_scope(self) -> None:
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"""The handler should return a 500 when no subject is present."""
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self.http_client.request = simple_async_mock(
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return_value=FakeResponse.json(
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code=200,
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payload={
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"active": True,
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"sub": SUBJECT,
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"scope": " ".join([MATRIX_DEVICE_SCOPE]),
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},
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)
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)
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request = Mock(args={})
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request.args[b"access_token"] = [b"mockAccessToken"]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
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self.get_failure(self.auth.get_user_by_req(request), InvalidClientTokenError)
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self.http_client.get_json.assert_called_once_with(WELL_KNOWN)
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self.http_client.request.assert_called_once_with(
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method="POST", uri=INTROSPECTION_ENDPOINT, data=ANY, headers=ANY
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)
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self._assertParams()
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def test_active_admin(self) -> None:
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"""The handler should return a requester with admin rights."""
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self.http_client.request = simple_async_mock(
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return_value=FakeResponse.json(
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code=200,
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payload={
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"active": True,
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"sub": SUBJECT,
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"scope": " ".join([SYNAPSE_ADMIN_SCOPE]),
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"username": USERNAME,
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},
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)
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)
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request = Mock(args={})
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request.args[b"access_token"] = [b"mockAccessToken"]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
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requester = self.get_success(self.auth.get_user_by_req(request))
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self.http_client.get_json.assert_called_once_with(WELL_KNOWN)
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self.http_client.request.assert_called_once_with(
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method="POST", uri=INTROSPECTION_ENDPOINT, data=ANY, headers=ANY
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)
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self._assertParams()
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self.assertEqual(requester.user.to_string(), "@%s:%s" % (USERNAME, SERVER_NAME))
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self.assertEqual(requester.is_guest, False)
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self.assertEqual(requester.device_id, None)
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self.assertEqual(
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get_awaitable_result(self.auth.is_server_admin(requester)), True
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)
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def test_active_admin_highest_privilege(self) -> None:
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"""The handler should resolve to the most permissive scope."""
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self.http_client.request = simple_async_mock(
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return_value=FakeResponse.json(
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code=200,
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payload={
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"active": True,
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"sub": SUBJECT,
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"scope": " ".join(
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[SYNAPSE_ADMIN_SCOPE, MATRIX_USER_SCOPE, MATRIX_GUEST_SCOPE]
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),
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"username": USERNAME,
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},
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)
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)
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request = Mock(args={})
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request.args[b"access_token"] = [b"mockAccessToken"]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
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requester = self.get_success(self.auth.get_user_by_req(request))
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self.http_client.get_json.assert_called_once_with(WELL_KNOWN)
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self.http_client.request.assert_called_once_with(
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method="POST", uri=INTROSPECTION_ENDPOINT, data=ANY, headers=ANY
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)
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self._assertParams()
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self.assertEqual(requester.user.to_string(), "@%s:%s" % (USERNAME, SERVER_NAME))
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self.assertEqual(requester.is_guest, False)
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self.assertEqual(requester.device_id, None)
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self.assertEqual(
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get_awaitable_result(self.auth.is_server_admin(requester)), True
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)
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def test_active_user(self) -> None:
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"""The handler should return a requester with normal user rights."""
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self.http_client.request = simple_async_mock(
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return_value=FakeResponse.json(
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code=200,
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payload={
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"active": True,
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"sub": SUBJECT,
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"scope": " ".join([MATRIX_USER_SCOPE]),
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"username": USERNAME,
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},
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)
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)
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request = Mock(args={})
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request.args[b"access_token"] = [b"mockAccessToken"]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
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requester = self.get_success(self.auth.get_user_by_req(request))
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self.http_client.get_json.assert_called_once_with(WELL_KNOWN)
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self.http_client.request.assert_called_once_with(
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method="POST", uri=INTROSPECTION_ENDPOINT, data=ANY, headers=ANY
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)
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self._assertParams()
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self.assertEqual(requester.user.to_string(), "@%s:%s" % (USERNAME, SERVER_NAME))
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self.assertEqual(requester.is_guest, False)
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self.assertEqual(requester.device_id, None)
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self.assertEqual(
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get_awaitable_result(self.auth.is_server_admin(requester)), False
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)
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def test_active_user_with_device(self) -> None:
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"""The handler should return a requester with normal user rights and a device ID."""
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self.http_client.request = simple_async_mock(
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return_value=FakeResponse.json(
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code=200,
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payload={
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"active": True,
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"sub": SUBJECT,
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"scope": " ".join([MATRIX_USER_SCOPE, MATRIX_DEVICE_SCOPE]),
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"username": USERNAME,
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},
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)
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)
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request = Mock(args={})
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request.args[b"access_token"] = [b"mockAccessToken"]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
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requester = self.get_success(self.auth.get_user_by_req(request))
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self.http_client.get_json.assert_called_once_with(WELL_KNOWN)
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self.http_client.request.assert_called_once_with(
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method="POST", uri=INTROSPECTION_ENDPOINT, data=ANY, headers=ANY
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)
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self._assertParams()
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self.assertEqual(requester.user.to_string(), "@%s:%s" % (USERNAME, SERVER_NAME))
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self.assertEqual(requester.is_guest, False)
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self.assertEqual(
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get_awaitable_result(self.auth.is_server_admin(requester)), False
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)
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self.assertEqual(requester.device_id, DEVICE)
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def test_active_guest_with_device(self) -> None:
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"""The handler should return a requester with guest user rights and a device ID."""
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self.http_client.request = simple_async_mock(
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return_value=FakeResponse.json(
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code=200,
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payload={
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"active": True,
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"sub": SUBJECT,
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"scope": " ".join([MATRIX_GUEST_SCOPE, MATRIX_DEVICE_SCOPE]),
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"username": USERNAME,
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},
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)
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)
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request = Mock(args={})
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request.args[b"access_token"] = [b"mockAccessToken"]
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request.requestHeaders.getRawHeaders = mock_getRawHeaders()
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requester = self.get_success(self.auth.get_user_by_req(request))
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self.http_client.get_json.assert_called_once_with(WELL_KNOWN)
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self.http_client.request.assert_called_once_with(
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method="POST", uri=INTROSPECTION_ENDPOINT, data=ANY, headers=ANY
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)
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self._assertParams()
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self.assertEqual(requester.user.to_string(), "@%s:%s" % (USERNAME, SERVER_NAME))
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self.assertEqual(requester.is_guest, True)
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self.assertEqual(
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get_awaitable_result(self.auth.is_server_admin(requester)), False
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)
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self.assertEqual(requester.device_id, DEVICE)
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