diff options
| -rwxr-xr-x | .buildkite/scripts/test_old_deps.sh | 2 | ||||
| -rw-r--r-- | changelog.d/8800.misc | 1 | ||||
| -rw-r--r-- | synapse/handlers/saml_handler.py | 2 | ||||
| -rw-r--r-- | tests/handlers/test_oidc.py | 34 | ||||
| -rw-r--r-- | tests/handlers/test_saml.py | 136 |
5 files changed, 156 insertions, 19 deletions
diff --git a/.buildkite/scripts/test_old_deps.sh b/.buildkite/scripts/test_old_deps.sh index cdb77b556c..9905c4bc4f 100755 --- a/.buildkite/scripts/test_old_deps.sh +++ b/.buildkite/scripts/test_old_deps.sh @@ -6,7 +6,7 @@ set -ex apt-get update -apt-get install -y python3.5 python3.5-dev python3-pip libxml2-dev libxslt-dev zlib1g-dev tox +apt-get install -y python3.5 python3.5-dev python3-pip libxml2-dev libxslt-dev xmlsec1 zlib1g-dev tox export LANG="C.UTF-8" diff --git a/changelog.d/8800.misc b/changelog.d/8800.misc new file mode 100644 index 0000000000..57cca8fee5 --- /dev/null +++ b/changelog.d/8800.misc @@ -0,0 +1 @@ +Add additional error checking for OpenID Connect and SAML mapping providers. diff --git a/synapse/handlers/saml_handler.py b/synapse/handlers/saml_handler.py index 34db10ffe4..7ffad7d8af 100644 --- a/synapse/handlers/saml_handler.py +++ b/synapse/handlers/saml_handler.py @@ -265,7 +265,7 @@ class SamlHandler(BaseHandler): return UserAttributes( localpart=result.get("mxid_localpart"), display_name=result.get("displayname"), - emails=result.get("emails"), + emails=result.get("emails", []), ) with (await self._mapping_lock.queue(self._auth_provider_id)): diff --git a/tests/handlers/test_oidc.py b/tests/handlers/test_oidc.py index e880d32be6..c9807a7b73 100644 --- a/tests/handlers/test_oidc.py +++ b/tests/handlers/test_oidc.py @@ -23,7 +23,7 @@ import pymacaroons from twisted.python.failure import Failure from twisted.web._newclient import ResponseDone -from synapse.handlers.oidc_handler import OidcError, OidcHandler, OidcMappingProvider +from synapse.handlers.oidc_handler import OidcError, OidcMappingProvider from synapse.handlers.sso import MappingException from synapse.types import UserID @@ -127,13 +127,8 @@ async def get_json(url): class OidcHandlerTestCase(HomeserverTestCase): - def make_homeserver(self, reactor, clock): - - self.http_client = Mock(spec=["get_json"]) - self.http_client.get_json.side_effect = get_json - self.http_client.user_agent = "Synapse Test" - - config = self.default_config() + def default_config(self): + config = super().default_config() config["public_baseurl"] = BASE_URL oidc_config = { "enabled": True, @@ -149,19 +144,24 @@ class OidcHandlerTestCase(HomeserverTestCase): oidc_config.update(config.get("oidc_config", {})) config["oidc_config"] = oidc_config - hs = self.setup_test_homeserver( - http_client=self.http_client, - proxied_http_client=self.http_client, - config=config, - ) + return config + + def make_homeserver(self, reactor, clock): + + self.http_client = Mock(spec=["get_json"]) + self.http_client.get_json.side_effect = get_json + self.http_client.user_agent = "Synapse Test" + + hs = self.setup_test_homeserver(proxied_http_client=self.http_client) - self.handler = OidcHandler(hs) + self.handler = hs.get_oidc_handler() + sso_handler = hs.get_sso_handler() # Mock the render error method. self.render_error = Mock(return_value=None) - self.handler._sso_handler.render_error = self.render_error + sso_handler.render_error = self.render_error # Reduce the number of attempts when generating MXIDs. - self.handler._sso_handler._MAP_USERNAME_RETRIES = 3 + sso_handler._MAP_USERNAME_RETRIES = 3 return hs @@ -832,7 +832,7 @@ class OidcHandlerTestCase(HomeserverTestCase): # test_user is already taken, so test_user1 gets registered instead. self.assertEqual(mxid, "@test_user1:test") - # Register all of the potential users for a particular username. + # Register all of the potential mxids for a particular OIDC username. self.get_success( store.register_user(user_id="@tester:test", password_hash=None) ) diff --git a/tests/handlers/test_saml.py b/tests/handlers/test_saml.py new file mode 100644 index 0000000000..79fd47036f --- /dev/null +++ b/tests/handlers/test_saml.py @@ -0,0 +1,136 @@ +# Copyright 2020 The Matrix.org Foundation C.I.C. +# +# 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. + +import attr + +from synapse.handlers.sso import MappingException + +from tests.unittest import HomeserverTestCase + +# These are a few constants that are used as config parameters in the tests. +BASE_URL = "https://synapse/" + + +@attr.s +class FakeAuthnResponse: + ava = attr.ib(type=dict) + + +class TestMappingProvider: + def __init__(self, config, module): + pass + + @staticmethod + def parse_config(config): + return + + @staticmethod + def get_saml_attributes(config): + return {"uid"}, {"displayName"} + + def get_remote_user_id(self, saml_response, client_redirect_url): + return saml_response.ava["uid"] + + def saml_response_to_user_attributes( + self, saml_response, failures, client_redirect_url + ): + localpart = saml_response.ava["username"] + (str(failures) if failures else "") + return {"mxid_localpart": localpart, "displayname": None} + + +class SamlHandlerTestCase(HomeserverTestCase): + def default_config(self): + config = super().default_config() + config["public_baseurl"] = BASE_URL + saml_config = { + "sp_config": {"metadata": {}}, + # Disable grandfathering. + "grandfathered_mxid_source_attribute": None, + "user_mapping_provider": {"module": __name__ + ".TestMappingProvider"}, + } + config["saml2_config"] = saml_config + + return config + + def make_homeserver(self, reactor, clock): + hs = self.setup_test_homeserver() + + self.handler = hs.get_saml_handler() + + # Reduce the number of attempts when generating MXIDs. + sso_handler = hs.get_sso_handler() + sso_handler._MAP_USERNAME_RETRIES = 3 + + return hs + + def test_map_saml_response_to_user(self): + """Ensure that mapping the SAML response returned from a provider to an MXID works properly.""" + saml_response = FakeAuthnResponse({"uid": "test_user", "username": "test_user"}) + # The redirect_url doesn't matter with the default user mapping provider. + redirect_url = "" + mxid = self.get_success( + self.handler._map_saml_response_to_user( + saml_response, redirect_url, "user-agent", "10.10.10.10" + ) + ) + self.assertEqual(mxid, "@test_user:test") + + def test_map_saml_response_to_invalid_localpart(self): + """If the mapping provider generates an invalid localpart it should be rejected.""" + saml_response = FakeAuthnResponse({"uid": "test", "username": "föö"}) + redirect_url = "" + e = self.get_failure( + self.handler._map_saml_response_to_user( + saml_response, redirect_url, "user-agent", "10.10.10.10" + ), + MappingException, + ) + self.assertEqual(str(e.value), "localpart is invalid: föö") + + def test_map_saml_response_to_user_retries(self): + """The mapping provider can retry generating an MXID if the MXID is already in use.""" + store = self.hs.get_datastore() + self.get_success( + store.register_user(user_id="@test_user:test", password_hash=None) + ) + saml_response = FakeAuthnResponse({"uid": "test", "username": "test_user"}) + redirect_url = "" + mxid = self.get_success( + self.handler._map_saml_response_to_user( + saml_response, redirect_url, "user-agent", "10.10.10.10" + ) + ) + # test_user is already taken, so test_user1 gets registered instead. + self.assertEqual(mxid, "@test_user1:test") + + # Register all of the potential mxids for a particular SAML username. + self.get_success( + store.register_user(user_id="@tester:test", password_hash=None) + ) + for i in range(1, 3): + self.get_success( + store.register_user(user_id="@tester%d:test" % i, password_hash=None) + ) + + # Now attempt to map to a username, this will fail since all potential usernames are taken. + saml_response = FakeAuthnResponse({"uid": "tester", "username": "tester"}) + e = self.get_failure( + self.handler._map_saml_response_to_user( + saml_response, redirect_url, "user-agent", "10.10.10.10" + ), + MappingException, + ) + self.assertEqual( + str(e.value), "Unable to generate a Matrix ID from the SSO response" + ) |