diff --git a/tests/handlers/test_saml.py b/tests/handlers/test_saml.py
deleted file mode 100644
index 1aca354826..0000000000
--- a/tests/handlers/test_saml.py
+++ /dev/null
@@ -1,427 +0,0 @@
-#
-# This file is licensed under the Affero General Public License (AGPL) version 3.
-#
-# Copyright 2020 The Matrix.org Foundation C.I.C.
-# 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 Any, Dict, Optional, Set, Tuple
-from unittest.mock import AsyncMock, Mock
-
-import attr
-
-from twisted.test.proto_helpers import MemoryReactor
-
-from synapse.api.errors import RedirectException
-from synapse.module_api import ModuleApi
-from synapse.server import HomeServer
-from synapse.types import JsonDict
-from synapse.util import Clock
-
-from tests.unittest import HomeserverTestCase, override_config
-
-# Check if we have the dependencies to run the tests.
-try:
- import saml2.config
- import saml2.response
- from saml2.sigver import SigverError
-
- has_saml2 = True
-
- # pysaml2 can be installed and imported, but might not be able to find xmlsec1.
- config = saml2.config.SPConfig()
- try:
- config.load({"metadata": {}})
- has_xmlsec1 = True
- except SigverError:
- has_xmlsec1 = False
-except ImportError:
- has_saml2 = False
- has_xmlsec1 = False
-
-# 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)
- assertions = attr.ib(type=list, factory=list)
- in_response_to = attr.ib(type=Optional[str], default=None)
-
-
-class TestMappingProvider:
- def __init__(self, config: None, module: ModuleApi):
- pass
-
- @staticmethod
- def parse_config(config: JsonDict) -> None:
- return None
-
- @staticmethod
- def get_saml_attributes(config: None) -> Tuple[Set[str], Set[str]]:
- return {"uid"}, {"displayName"}
-
- def get_remote_user_id(
- self, saml_response: "saml2.response.AuthnResponse", client_redirect_url: str
- ) -> str:
- return saml_response.ava["uid"]
-
- def saml_response_to_user_attributes(
- self,
- saml_response: "saml2.response.AuthnResponse",
- failures: int,
- client_redirect_url: str,
- ) -> dict:
- localpart = saml_response.ava["username"] + (str(failures) if failures else "")
- return {"mxid_localpart": localpart, "displayname": None}
-
-
-class TestRedirectMappingProvider(TestMappingProvider):
- def saml_response_to_user_attributes(
- self,
- saml_response: "saml2.response.AuthnResponse",
- failures: int,
- client_redirect_url: str,
- ) -> dict:
- raise RedirectException(b"https://custom-saml-redirect/")
-
-
-class SamlHandlerTestCase(HomeserverTestCase):
- def default_config(self) -> Dict[str, Any]:
- config = super().default_config()
- config["public_baseurl"] = BASE_URL
- saml_config: Dict[str, Any] = {
- "sp_config": {"metadata": {}},
- # Disable grandfathering.
- "grandfathered_mxid_source_attribute": None,
- "user_mapping_provider": {"module": __name__ + ".TestMappingProvider"},
- }
-
- # Update this config with what's in the default config so that
- # override_config works as expected.
- saml_config.update(config.get("saml2_config", {}))
- config["saml2_config"] = saml_config
-
- return config
-
- def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
- 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
-
- if not has_saml2:
- skip = "Requires pysaml2"
- elif not has_xmlsec1:
- skip = "Requires xmlsec1"
-
- def test_map_saml_response_to_user(self) -> None:
- """Ensure that mapping the SAML response returned from a provider to an MXID works properly."""
-
- # stub out the auth handler
- auth_handler = self.hs.get_auth_handler()
- auth_handler.complete_sso_login = AsyncMock() # type: ignore[method-assign]
-
- # send a mocked-up SAML response to the callback
- saml_response = FakeAuthnResponse({"uid": "test_user", "username": "test_user"})
- request = _mock_request()
- self.get_success(
- self.handler._handle_authn_response(request, saml_response, "redirect_uri")
- )
-
- # check that the auth handler got called as expected
- auth_handler.complete_sso_login.assert_called_once_with(
- "@test_user:test",
- "saml",
- request,
- "redirect_uri",
- None,
- new_user=True,
- auth_provider_session_id=None,
- )
-
- @override_config({"saml2_config": {"grandfathered_mxid_source_attribute": "mxid"}})
- def test_map_saml_response_to_existing_user(self) -> None:
- """Existing users can log in with SAML account."""
- store = self.hs.get_datastores().main
- self.get_success(
- store.register_user(user_id="@test_user:test", password_hash=None)
- )
-
- # stub out the auth handler
- auth_handler = self.hs.get_auth_handler()
- auth_handler.complete_sso_login = AsyncMock() # type: ignore[method-assign]
-
- # Map a user via SSO.
- saml_response = FakeAuthnResponse(
- {"uid": "tester", "mxid": ["test_user"], "username": "test_user"}
- )
- request = _mock_request()
- self.get_success(
- self.handler._handle_authn_response(request, saml_response, "")
- )
-
- # check that the auth handler got called as expected
- auth_handler.complete_sso_login.assert_called_once_with(
- "@test_user:test",
- "saml",
- request,
- "",
- None,
- new_user=False,
- auth_provider_session_id=None,
- )
-
- # Subsequent calls should map to the same mxid.
- auth_handler.complete_sso_login.reset_mock()
- self.get_success(
- self.handler._handle_authn_response(request, saml_response, "")
- )
- auth_handler.complete_sso_login.assert_called_once_with(
- "@test_user:test",
- "saml",
- request,
- "",
- None,
- new_user=False,
- auth_provider_session_id=None,
- )
-
- def test_map_saml_response_to_invalid_localpart(self) -> None:
- """If the mapping provider generates an invalid localpart it should be rejected."""
-
- # stub out the auth handler
- auth_handler = self.hs.get_auth_handler()
- auth_handler.complete_sso_login = AsyncMock() # type: ignore[method-assign]
-
- # mock out the error renderer too
- sso_handler = self.hs.get_sso_handler()
- sso_handler.render_error = Mock(return_value=None) # type: ignore[method-assign]
-
- saml_response = FakeAuthnResponse({"uid": "test", "username": "föö"})
- request = _mock_request()
- self.get_success(
- self.handler._handle_authn_response(request, saml_response, ""),
- )
- sso_handler.render_error.assert_called_once_with(
- request, "mapping_error", "localpart is invalid: föö"
- )
- auth_handler.complete_sso_login.assert_not_called()
-
- def test_map_saml_response_to_user_retries(self) -> None:
- """The mapping provider can retry generating an MXID if the MXID is already in use."""
-
- # stub out the auth handler and error renderer
- auth_handler = self.hs.get_auth_handler()
- auth_handler.complete_sso_login = AsyncMock() # type: ignore[method-assign]
- sso_handler = self.hs.get_sso_handler()
- sso_handler.render_error = Mock(return_value=None) # type: ignore[method-assign]
-
- # register a user to occupy the first-choice MXID
- store = self.hs.get_datastores().main
- self.get_success(
- store.register_user(user_id="@test_user:test", password_hash=None)
- )
-
- # send the fake SAML response
- saml_response = FakeAuthnResponse({"uid": "test", "username": "test_user"})
- request = _mock_request()
- self.get_success(
- self.handler._handle_authn_response(request, saml_response, ""),
- )
-
- # test_user is already taken, so test_user1 gets registered instead.
- auth_handler.complete_sso_login.assert_called_once_with(
- "@test_user1:test",
- "saml",
- request,
- "",
- None,
- new_user=True,
- auth_provider_session_id=None,
- )
- auth_handler.complete_sso_login.reset_mock()
-
- # 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"})
- self.get_success(
- self.handler._handle_authn_response(request, saml_response, ""),
- )
- sso_handler.render_error.assert_called_once_with(
- request,
- "mapping_error",
- "Unable to generate a Matrix ID from the SSO response",
- )
- auth_handler.complete_sso_login.assert_not_called()
-
- @override_config(
- {
- "saml2_config": {
- "user_mapping_provider": {
- "module": __name__ + ".TestRedirectMappingProvider"
- },
- }
- }
- )
- def test_map_saml_response_redirect(self) -> None:
- """Test a mapping provider that raises a RedirectException"""
-
- saml_response = FakeAuthnResponse({"uid": "test", "username": "test_user"})
- request = _mock_request()
- e = self.get_failure(
- self.handler._handle_authn_response(request, saml_response, ""),
- RedirectException,
- )
- self.assertEqual(e.value.location, b"https://custom-saml-redirect/")
-
- @override_config(
- {
- "saml2_config": {
- "attribute_requirements": [
- {"attribute": "userGroup", "value": "staff"},
- {"attribute": "department", "value": "sales"},
- ],
- },
- }
- )
- def test_attribute_requirements(self) -> None:
- """The required attributes must be met from the SAML response."""
-
- # stub out the auth handler
- auth_handler = self.hs.get_auth_handler()
- auth_handler.complete_sso_login = AsyncMock() # type: ignore[method-assign]
-
- # The response doesn't have the proper userGroup or department.
- saml_response = FakeAuthnResponse({"uid": "test_user", "username": "test_user"})
- request = _mock_request()
- self.get_success(
- self.handler._handle_authn_response(request, saml_response, "redirect_uri")
- )
- auth_handler.complete_sso_login.assert_not_called()
-
- # The response doesn't have the proper department.
- saml_response = FakeAuthnResponse(
- {"uid": "test_user", "username": "test_user", "userGroup": ["staff"]}
- )
- request = _mock_request()
- self.get_success(
- self.handler._handle_authn_response(request, saml_response, "redirect_uri")
- )
- auth_handler.complete_sso_login.assert_not_called()
-
- # Add the proper attributes and it should succeed.
- saml_response = FakeAuthnResponse(
- {
- "uid": "test_user",
- "username": "test_user",
- "userGroup": ["staff", "admin"],
- "department": ["sales"],
- }
- )
- request.reset_mock()
- self.get_success(
- self.handler._handle_authn_response(request, saml_response, "redirect_uri")
- )
-
- # check that the auth handler got called as expected
- auth_handler.complete_sso_login.assert_called_once_with(
- "@test_user:test",
- "saml",
- request,
- "redirect_uri",
- None,
- new_user=True,
- auth_provider_session_id=None,
- )
-
- @override_config(
- {
- "saml2_config": {
- "attribute_requirements": [
- {"attribute": "userGroup", "one_of": ["staff", "admin"]},
- ],
- },
- }
- )
- def test_attribute_requirements_one_of(self) -> None:
- """The required attributes can be comma-separated."""
-
- # stub out the auth handler
- auth_handler = self.hs.get_auth_handler()
- auth_handler.complete_sso_login = AsyncMock() # type: ignore[method-assign]
-
- # The response doesn't have the proper department.
- saml_response = FakeAuthnResponse(
- {"uid": "test_user", "username": "test_user", "userGroup": ["nogroup"]}
- )
- request = _mock_request()
- self.get_success(
- self.handler._handle_authn_response(request, saml_response, "redirect_uri")
- )
- auth_handler.complete_sso_login.assert_not_called()
-
- # Add the proper attributes and it should succeed.
- saml_response = FakeAuthnResponse(
- {"uid": "test_user", "username": "test_user", "userGroup": ["admin"]}
- )
- request.reset_mock()
- self.get_success(
- self.handler._handle_authn_response(request, saml_response, "redirect_uri")
- )
-
- # check that the auth handler got called as expected
- auth_handler.complete_sso_login.assert_called_once_with(
- "@test_user:test",
- "saml",
- request,
- "redirect_uri",
- None,
- new_user=True,
- auth_provider_session_id=None,
- )
-
-
-def _mock_request() -> Mock:
- """Returns a mock which will stand in as a SynapseRequest"""
- mock = Mock(
- spec=[
- "finish",
- "getClientAddress",
- "getHeader",
- "setHeader",
- "setResponseCode",
- "write",
- ]
- )
- # `_disconnected` musn't be another `Mock`, otherwise it will be truthy.
- mock._disconnected = False
- return mock
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