From f67f7ca495e1529ed14fc39a9524ddb94bb3b704 Mon Sep 17 00:00:00 2001 From: Yassin Kortam Date: Fri, 31 Jul 2026 12:10:36 -0700 Subject: [PATCH] feat(mcp): warn when an oauth2_id_jag server outruns the SSO provider's assertion capture Only the generic OIDC login path captures the IdP id_token that an oauth2_id_jag MCP server spends as its RFC 8693 subject token. Under Google, Microsoft, SAML or no SSO at all, registration succeeds and then every ID-JAG credential resolution fails for every user, with nothing in the logs, the config or the API response to say why. Report the mismatch from the two places it is knowable: when an oauth2_id_jag server is created or updated through the management endpoint, and at SSO callback time when a login hands the arm nothing while such a server is registered. Provider selection mirrors the callback's precedence, so a generic client id sitting behind GOOGLE_CLIENT_ID does not clear the warning. --- .../mcp_management_endpoints.py | 22 ++ .../sso/id_jag_assertion_capture.py | 71 +++++ litellm/proxy/management_endpoints/ui_sso.py | 26 ++ .../test_id_jag_assertion_capture.py | 100 +++++++ .../test_mcp_management_endpoints.py | 156 ++++++++++ .../proxy/management_endpoints/test_ui_sso.py | 268 ++++++++++++++++++ 6 files changed, 643 insertions(+) create mode 100644 litellm/proxy/management_endpoints/sso/id_jag_assertion_capture.py create mode 100644 tests/test_litellm/proxy/management_endpoints/test_id_jag_assertion_capture.py diff --git a/litellm/proxy/management_endpoints/mcp_management_endpoints.py b/litellm/proxy/management_endpoints/mcp_management_endpoints.py index dcc4dc36d83..bf361c7c3ab 100644 --- a/litellm/proxy/management_endpoints/mcp_management_endpoints.py +++ b/litellm/proxy/management_endpoints/mcp_management_endpoints.py @@ -62,6 +62,9 @@ from litellm.proxy.common_utils.encrypt_decrypt_utils import ( decrypt_value_helper, encrypt_value_helper, ) +from litellm.proxy.management_endpoints.sso.id_jag_assertion_capture import ( + id_jag_assertion_capture_gap, +) from litellm.proxy.management_helpers.audit_logs import get_audit_log_changed_by from litellm.repositories.table_repositories import ( MCPServerRepository, @@ -227,6 +230,22 @@ if MCP_AVAILABLE: _base_validate_and_normalize_mcp_server_payload(payload) _validate_mcp_server_name_fields(payload) + def warn_if_id_jag_server_outruns_sso(server_id: str | None, auth_type: MCPAuth | str | None) -> None: + """Registering an ``oauth2_id_jag`` server under an SSO provider that captures no IdP + identity assertion is a dead configuration: nothing here fails, and then every ID-JAG call + fails for every user with a message that only ever tells them to sign in again. Say it once, + at the moment the admin can still act on it.""" + if auth_type != MCPAuth.oauth2_id_jag: + return + gap = id_jag_assertion_capture_gap() + if gap is None: + return + verbose_proxy_logger.warning( + "MCP server %s is registered with auth_type=oauth2_id_jag, but %s.", + server_id, + gap, + ) + def stamp_omitted_oauth2_flow(payload: NewMCPServerRequest) -> None: """Fallback only: fill in oauth2_flow when an oauth2 create omits it. @@ -1489,6 +1508,8 @@ if MCP_AVAILABLE: detail={"error": f"Error creating mcp server: {str(e)}"}, ) + warn_if_id_jag_server_outruns_sso(new_mcp_server.server_id, new_mcp_server.auth_type) + # Registry refresh is best-effort: the row is already committed, so a # failure here (e.g. an unrelated malformed row in the table) must not # surface as a 500 and orphan the created server, which would push the @@ -2476,6 +2497,7 @@ if MCP_AVAILABLE: status_code=status.HTTP_404_NOT_FOUND, detail={"error": f"MCP Server not found, passed server_id={payload.server_id}"}, ) + warn_if_id_jag_server_outruns_sso(mcp_server_record_updated.server_id, mcp_server_record_updated.auth_type) await global_mcp_server_manager.update_server(mcp_server_record_updated) # Ensure registry is up to date by reloading from database diff --git a/litellm/proxy/management_endpoints/sso/id_jag_assertion_capture.py b/litellm/proxy/management_endpoints/sso/id_jag_assertion_capture.py new file mode 100644 index 00000000000..e0cb0d3e775 --- /dev/null +++ b/litellm/proxy/management_endpoints/sso/id_jag_assertion_capture.py @@ -0,0 +1,71 @@ +"""Whether the SSO provider the login callback dispatches to can capture an IdP identity assertion. + +An ``oauth2_id_jag`` MCP server spends the ``id_token`` captured at SSO login as its RFC 8693 +subject token. Only the generic OIDC login path reaches a token response the gateway retains one +from, so a deployment whose SSO runs through Google, Microsoft or SAML never stores an assertion +and every store-sourced ID-JAG exchange fails for every user, however many times they sign in. +Neither side can see that alone: the MCP registration knows nothing about SSO and the login knows +nothing about MCP. This module is the one shared answer both warn from. +""" + +from __future__ import annotations + +import os +from enum import Enum +from typing import assert_never + +from litellm.proxy.management_endpoints.sso.saml_sso import SAMLAuthHandler + +_GENERIC_OIDC_REMEDY = ( + "Point SSO at the generic OIDC provider (GENERIC_CLIENT_ID), the one login path whose token " + "response the gateway retains an id_token from" +) + + +class ActiveSSOProvider(str, Enum): + google = "google" + microsoft = "microsoft" + generic = "generic" + saml = "saml" + none = "none" + + +def active_sso_provider() -> ActiveSSOProvider: + """The provider the SSO callback will dispatch to. + + Mirrors the callback's precedence rather than reporting everything configured: an environment + carrying both GOOGLE_CLIENT_ID and GENERIC_CLIENT_ID runs the Google branch, so it must report + Google. Presence is judged the way the callback judges it, so a client id set to the empty + string still selects that branch here. + """ + if os.getenv("GOOGLE_CLIENT_ID") is not None: + return ActiveSSOProvider.google + if os.getenv("MICROSOFT_CLIENT_ID") is not None: + return ActiveSSOProvider.microsoft + if os.getenv("GENERIC_CLIENT_ID") is not None: + return ActiveSSOProvider.generic + if SAMLAuthHandler.is_saml_configured(): + return ActiveSSOProvider.saml + return ActiveSSOProvider.none + + +def id_jag_assertion_capture_gap() -> str | None: + """Why ID-JAG cannot work under the active SSO provider, phrased for an operator reading a log, + or ``None`` when that provider does capture an assertion.""" + provider = active_sso_provider() + match provider: + case ActiveSSOProvider.generic: + return None + case ActiveSSOProvider.none: + return ( + "no SSO provider is configured, so no IdP identity assertion is ever captured and " + f"ID-JAG credential resolution fails for every user. {_GENERIC_OIDC_REMEDY}" + ) + case ActiveSSOProvider.google | ActiveSSOProvider.microsoft | ActiveSSOProvider.saml: + return ( + f"the active SSO provider ({provider.value}) has no identity-assertion capture path, so no " + "IdP id_token is ever stored and ID-JAG credential resolution fails for every user no matter " + f"how often they sign in. {_GENERIC_OIDC_REMEDY}" + ) + case _: + assert_never(provider) diff --git a/litellm/proxy/management_endpoints/ui_sso.py b/litellm/proxy/management_endpoints/ui_sso.py index 8682b61f910..3155a0da73b 100644 --- a/litellm/proxy/management_endpoints/ui_sso.py +++ b/litellm/proxy/management_endpoints/ui_sso.py @@ -66,6 +66,7 @@ from litellm.llms.custom_httpx.http_handler import ( from litellm.proxy._experimental.mcp_server.outbound_credentials.sso_assertion_store import ( SSOIdentityAssertion, assertion_from_sso_login, + ema_assertion_retention_enabled, retain_sso_identity_assertion_for_ema, ) from litellm.proxy._types import ( @@ -100,6 +101,9 @@ from litellm.proxy.common_utils.html_forms.ui_login import build_ui_login_form from litellm.proxy.common_utils.user_api_key_cache import UserApiKeyCache from litellm.proxy.management_endpoints.internal_user_endpoints import new_user from litellm.proxy.management_endpoints.sso import CustomMicrosoftSSO +from litellm.proxy.management_endpoints.sso.id_jag_assertion_capture import ( + id_jag_assertion_capture_gap, +) from litellm.proxy.management_endpoints.sso.saml_sso import SAMLAuthHandler from litellm.proxy.management_endpoints.sso_helper_utils import ( check_is_admin_only_access, @@ -1529,6 +1533,26 @@ async def get_generic_sso_response( return result or {}, received_response, access_token_payload, sso_assertion +async def warn_if_id_jag_assertion_uncaptured(assertion: SSOIdentityAssertion | None) -> None: + """Say, at the one moment it is knowable, that this login gave an ``oauth2_id_jag`` server + nothing to spend. Without it the operator only ever sees the per-request failure, which cannot + tell a user who has never signed in from a provider that will never capture. Kept strictly + diagnostic: a store outage is swallowed, since a login must not fail over a log line.""" + if assertion is not None: + return + try: + if not await ema_assertion_retention_enabled(): + return + except Exception as exc: # noqa: BLE001 # diagnostics must never break the login + verbose_proxy_logger.debug("Could not check for oauth2_id_jag MCP servers after SSO login: %s", exc) + return + gap = id_jag_assertion_capture_gap() + verbose_proxy_logger.warning( + "SSO login captured no IdP identity assertion while an oauth2_id_jag MCP server is registered: %s", + gap if gap is not None else "the identity provider's token response carried no usable id_token", + ) + + async def create_team_member_add_task(team_id, user_info): """Create a task for adding a member to a team.""" try: @@ -2090,6 +2114,7 @@ async def _complete_cli_sso_callback_session( raise HTTPException(status_code=500, detail="Failed to retrieve user information from SSO") await retain_sso_identity_assertion_for_ema(user_id=user_info.user_id, assertion=sso_assertion) + await warn_if_id_jag_assertion_uncaptured(sso_assertion) teams: List[str] = [] if hasattr(user_info, "teams") and user_info.teams: @@ -3369,6 +3394,7 @@ class SSOAuthenticationHandler: if isinstance(user_id, str) and user_id: await retain_sso_identity_assertion_for_ema(user_id=user_id, assertion=sso_assertion) + await warn_if_id_jag_assertion_uncaptured(sso_assertion) disabled_non_admin_personal_key_creation = get_disabled_non_admin_personal_key_creation() litellm_dashboard_ui = get_custom_url(request_base_url=str(request.base_url), route="ui/") diff --git a/tests/test_litellm/proxy/management_endpoints/test_id_jag_assertion_capture.py b/tests/test_litellm/proxy/management_endpoints/test_id_jag_assertion_capture.py new file mode 100644 index 00000000000..91bd8dfb2a6 --- /dev/null +++ b/tests/test_litellm/proxy/management_endpoints/test_id_jag_assertion_capture.py @@ -0,0 +1,100 @@ +import pytest + +from litellm.proxy.management_endpoints.sso.id_jag_assertion_capture import ( + ActiveSSOProvider, + active_sso_provider, + id_jag_assertion_capture_gap, +) + +_SSO_ENV_VARS = ( + "GOOGLE_CLIENT_ID", + "MICROSOFT_CLIENT_ID", + "GENERIC_CLIENT_ID", + "SAML_IDP_METADATA_URL", + "SAML_IDP_METADATA_XML", +) + + +@pytest.fixture(autouse=True) +def _isolated_sso_env(monkeypatch): + """Every SSO selector is read from the process environment, so a value left behind by + another test would silently decide this one's answer.""" + for name in _SSO_ENV_VARS: + monkeypatch.delenv(name, raising=False) + + +class TestActiveSSOProviderMirrorsTheCallback: + """The gap warning is only as good as its agreement with the branch the login callback + actually takes, so provider selection is asserted branch by branch, including the + precedence that makes a co-configured generic client unreachable.""" + + def test_google_client_id_selects_google(self, monkeypatch): + monkeypatch.setenv("GOOGLE_CLIENT_ID", "google-cid") + assert active_sso_provider() is ActiveSSOProvider.google + + def test_microsoft_client_id_selects_microsoft(self, monkeypatch): + monkeypatch.setenv("MICROSOFT_CLIENT_ID", "ms-cid") + assert active_sso_provider() is ActiveSSOProvider.microsoft + + def test_generic_client_id_selects_generic(self, monkeypatch): + monkeypatch.setenv("GENERIC_CLIENT_ID", "generic-cid") + assert active_sso_provider() is ActiveSSOProvider.generic + + def test_saml_metadata_selects_saml(self, monkeypatch): + monkeypatch.setenv("SAML_IDP_METADATA_URL", "https://idp.example.com/metadata") + assert active_sso_provider() is ActiveSSOProvider.saml + + def test_nothing_configured_selects_none(self): + assert active_sso_provider() is ActiveSSOProvider.none + + def test_google_outranks_a_co_configured_generic_client(self, monkeypatch): + """The callback tests GOOGLE_CLIENT_ID first, so the generic arm never runs here and + no assertion is captured; reporting generic would clear a gap that is still open.""" + monkeypatch.setenv("GOOGLE_CLIENT_ID", "google-cid") + monkeypatch.setenv("GENERIC_CLIENT_ID", "generic-cid") + assert active_sso_provider() is ActiveSSOProvider.google + + def test_microsoft_outranks_a_co_configured_generic_client(self, monkeypatch): + monkeypatch.setenv("MICROSOFT_CLIENT_ID", "ms-cid") + monkeypatch.setenv("GENERIC_CLIENT_ID", "generic-cid") + assert active_sso_provider() is ActiveSSOProvider.microsoft + + def test_generic_outranks_saml(self, monkeypatch): + monkeypatch.setenv("GENERIC_CLIENT_ID", "generic-cid") + monkeypatch.setenv("SAML_IDP_METADATA_URL", "https://idp.example.com/metadata") + assert active_sso_provider() is ActiveSSOProvider.generic + + +class TestIdJagAssertionCaptureGap: + def test_generic_oidc_has_no_gap(self, monkeypatch): + monkeypatch.setenv("GENERIC_CLIENT_ID", "generic-cid") + assert id_jag_assertion_capture_gap() is None + + @pytest.mark.parametrize( + "env_var, provider_label", + [ + ("GOOGLE_CLIENT_ID", "google"), + ("MICROSOFT_CLIENT_ID", "microsoft"), + ("SAML_IDP_METADATA_URL", "saml"), + ], + ) + def test_non_capturing_provider_is_named_with_the_remedy(self, monkeypatch, env_var, provider_label): + monkeypatch.setenv(env_var, "configured") + gap = id_jag_assertion_capture_gap() + assert gap is not None + assert provider_label in gap + assert "GENERIC_CLIENT_ID" in gap + + def test_no_sso_configured_reports_a_gap(self): + gap = id_jag_assertion_capture_gap() + assert gap is not None + assert "no SSO provider is configured" in gap + + def test_google_beside_generic_still_reports_a_gap(self, monkeypatch): + """The precedence trap in operator terms: adding a generic client id without removing + GOOGLE_CLIENT_ID does not fix the deployment, so the gap must not clear.""" + monkeypatch.setenv("GOOGLE_CLIENT_ID", "google-cid") + monkeypatch.setenv("GENERIC_CLIENT_ID", "generic-cid") + gap = id_jag_assertion_capture_gap() + assert gap is not None + assert "google" in gap diff --git a/tests/test_litellm/proxy/management_endpoints/test_mcp_management_endpoints.py b/tests/test_litellm/proxy/management_endpoints/test_mcp_management_endpoints.py index bf119c4fb2f..2108319eb2a 100644 --- a/tests/test_litellm/proxy/management_endpoints/test_mcp_management_endpoints.py +++ b/tests/test_litellm/proxy/management_endpoints/test_mcp_management_endpoints.py @@ -3437,6 +3437,162 @@ class TestAddMCPServerAtomicity: mock_manager.reload_servers_from_database.assert_not_awaited() +class TestIdJagRegistrationWarnsAboutTheSSOGap: + """An `oauth2_id_jag` server only ever works when the login path captures an IdP identity + assertion, and only the generic OIDC arm does. Registering one under Google or Microsoft + succeeds and then fails for every user on every call, so the mismatch has to be said at + registration time, while the admin is still looking at the configuration.""" + + @staticmethod + def _clear_sso_env(monkeypatch): + for name in ( + "GOOGLE_CLIENT_ID", + "MICROSOFT_CLIENT_ID", + "GENERIC_CLIENT_ID", + "SAML_IDP_METADATA_URL", + "SAML_IDP_METADATA_XML", + ): + monkeypatch.delenv(name, raising=False) + + @staticmethod + def _id_jag_warnings(logger_mock) -> list: + return [call for call in logger_mock.warning.call_args_list if "oauth2_id_jag" in str(call)] + + @staticmethod + def _server_record(auth_type) -> LiteLLM_MCPServerTable: + record = generate_mock_mcp_server_db_record(server_id="ema-1", alias="ema") + record.auth_type = auth_type + return record + + async def _run_create(self, monkeypatch, provider_env, auth_type, logger_mock): + from litellm.proxy.management_endpoints.mcp_management_endpoints import ( + add_mcp_server, + ) + + self._clear_sso_env(monkeypatch) + for name, value in provider_env.items(): + monkeypatch.setenv(name, value) + + mock_manager = MagicMock() + mock_manager.add_server = AsyncMock() + mock_manager.reload_servers_from_database = AsyncMock() + + with ( + patch( + "litellm.proxy.management_endpoints.mcp_management_endpoints.get_prisma_client_or_throw", + return_value=MagicMock(), + ), + patch( + "litellm.proxy.management_endpoints.mcp_management_endpoints.create_mcp_server", + AsyncMock(return_value=self._server_record(auth_type)), + ), + patch( + "litellm.proxy.management_endpoints.mcp_management_endpoints.global_mcp_server_manager", + mock_manager, + ), + patch( + "litellm.proxy.management_endpoints.mcp_management_endpoints.verbose_proxy_logger", + logger_mock, + ), + ): + await add_mcp_server( + payload=NewMCPServerRequest( + alias="ema", + url="https://ema.example.com/mcp", + transport=MCPTransport.http, + ), + user_api_key_dict=generate_mock_user_api_key_auth( + user_role=LitellmUserRoles.PROXY_ADMIN, user_id="admin-user" + ), + ) + + @pytest.mark.asyncio + @pytest.mark.parametrize( + "provider_env, expected_fragment", + [ + ({"GOOGLE_CLIENT_ID": "cid"}, "google"), + ({"MICROSOFT_CLIENT_ID": "cid"}, "microsoft"), + ({"SAML_IDP_METADATA_URL": "https://idp.example.com/metadata"}, "saml"), + ({}, "no SSO provider is configured"), + ], + ) + async def test_create_warns_under_a_provider_that_captures_nothing( + self, monkeypatch, provider_env, expected_fragment + ): + logger_mock = MagicMock() + await self._run_create(monkeypatch, provider_env, MCPAuth.oauth2_id_jag, logger_mock) + warnings = self._id_jag_warnings(logger_mock) + assert len(warnings) == 1 + assert expected_fragment in str(warnings[0]) + assert "ema-1" in str(warnings[0]) + + @pytest.mark.asyncio + async def test_create_is_silent_under_generic_oidc(self, monkeypatch): + logger_mock = MagicMock() + await self._run_create(monkeypatch, {"GENERIC_CLIENT_ID": "cid"}, MCPAuth.oauth2_id_jag, logger_mock) + assert self._id_jag_warnings(logger_mock) == [] + + @pytest.mark.asyncio + async def test_create_is_silent_for_other_auth_types(self, monkeypatch): + """Nothing but the id_jag arm sources credentials from a stored SSO assertion, so no + other server registered under Google has anything to warn about.""" + logger_mock = MagicMock() + await self._run_create(monkeypatch, {"GOOGLE_CLIENT_ID": "cid"}, MCPAuth.api_key, logger_mock) + assert self._id_jag_warnings(logger_mock) == [] + + @pytest.mark.asyncio + async def test_update_to_id_jag_warns(self, monkeypatch): + """Switching an existing server onto id_jag opens the same gap a create does.""" + from litellm.proxy.management_endpoints.mcp_management_endpoints import ( + edit_mcp_server, + ) + + self._clear_sso_env(monkeypatch) + monkeypatch.setenv("GOOGLE_CLIENT_ID", "cid") + + mock_manager = MagicMock() + mock_manager.update_server = AsyncMock() + mock_manager.reload_servers_from_database = AsyncMock() + logger_mock = MagicMock() + + with ( + patch( + "litellm.proxy.management_endpoints.mcp_management_endpoints.get_prisma_client_or_throw", + return_value=MagicMock(), + ), + patch( + "litellm.proxy.management_endpoints.mcp_management_endpoints.get_mcp_server", + AsyncMock(return_value=self._server_record(MCPAuth.api_key)), + ), + patch( + "litellm.proxy.management_endpoints.mcp_management_endpoints.update_mcp_server", + AsyncMock(return_value=self._server_record(MCPAuth.oauth2_id_jag)), + ), + patch( + "litellm.proxy.management_endpoints.mcp_management_endpoints.purge_user_oauth_credentials_for_server", + AsyncMock(return_value=0), + ), + patch( + "litellm.proxy.management_endpoints.mcp_management_endpoints.global_mcp_server_manager", + mock_manager, + ), + patch( + "litellm.proxy.management_endpoints.mcp_management_endpoints.verbose_proxy_logger", + logger_mock, + ), + ): + await edit_mcp_server( + payload=UpdateMCPServerRequest(server_id="ema-1", auth_type=MCPAuth.oauth2_id_jag), + user_api_key_dict=generate_mock_user_api_key_auth( + user_role=LitellmUserRoles.PROXY_ADMIN, user_id="admin-user" + ), + ) + + warnings = self._id_jag_warnings(logger_mock) + assert len(warnings) == 1 + assert "google" in str(warnings[0]) + + class TestHealthCheckServers: """Test suite for health check servers endpoint""" diff --git a/tests/test_litellm/proxy/management_endpoints/test_ui_sso.py b/tests/test_litellm/proxy/management_endpoints/test_ui_sso.py index 795b7cd5a9e..4a1f5e1f33e 100644 --- a/tests/test_litellm/proxy/management_endpoints/test_ui_sso.py +++ b/tests/test_litellm/proxy/management_endpoints/test_ui_sso.py @@ -7830,6 +7830,274 @@ async def test_cli_completion_persists_assertion_under_db_user_id(): assert response.status_code == 200 +# ── Diagnosing a login that captured nothing an id_jag server can spend ─────── + + +def _id_jag_gap_warnings(logger_mock) -> list: + return [call for call in logger_mock.warning.call_args_list if "oauth2_id_jag" in str(call)] + + +@pytest.mark.asyncio +@pytest.mark.parametrize( + "provider_env, expected_fragment", + [ + ({"GOOGLE_CLIENT_ID": "cid"}, "google"), + ({"MICROSOFT_CLIENT_ID": "cid", "MICROSOFT_TENANT": "t"}, "microsoft"), + ({}, "no SSO provider is configured"), + ], +) +async def test_uncaptured_assertion_warns_when_an_id_jag_server_is_registered( + monkeypatch, provider_env, expected_fragment +): + """A provider with no capture path leaves ID-JAG permanently broken, and the only place + that is knowable is the login itself; without this line the operator sees nothing at all.""" + from litellm.proxy.management_endpoints.ui_sso import ( + warn_if_id_jag_assertion_uncaptured, + ) + + for name in ("GOOGLE_CLIENT_ID", "MICROSOFT_CLIENT_ID", "GENERIC_CLIENT_ID", "SAML_IDP_METADATA_URL"): + monkeypatch.delenv(name, raising=False) + for name, value in provider_env.items(): + monkeypatch.setenv(name, value) + + logger_mock = MagicMock() + with ( + patch( + "litellm.proxy.management_endpoints.ui_sso.ema_assertion_retention_enabled", + AsyncMock(return_value=True), + ), + patch("litellm.proxy.management_endpoints.ui_sso.verbose_proxy_logger", logger_mock), + ): + await warn_if_id_jag_assertion_uncaptured(None) + + warnings = _id_jag_gap_warnings(logger_mock) + assert len(warnings) == 1 + assert expected_fragment in str(warnings[0]) + + +@pytest.mark.asyncio +async def test_generic_provider_that_returned_no_id_token_still_warns(monkeypatch): + """Generic OIDC has a capture path, so there is no configuration gap to report; the login + still handed the id_jag arm nothing, and that must not pass silently.""" + from litellm.proxy.management_endpoints.ui_sso import ( + warn_if_id_jag_assertion_uncaptured, + ) + + for name in ("GOOGLE_CLIENT_ID", "MICROSOFT_CLIENT_ID", "SAML_IDP_METADATA_URL"): + monkeypatch.delenv(name, raising=False) + monkeypatch.setenv("GENERIC_CLIENT_ID", "cid") + + logger_mock = MagicMock() + with ( + patch( + "litellm.proxy.management_endpoints.ui_sso.ema_assertion_retention_enabled", + AsyncMock(return_value=True), + ), + patch("litellm.proxy.management_endpoints.ui_sso.verbose_proxy_logger", logger_mock), + ): + await warn_if_id_jag_assertion_uncaptured(None) + + warnings = _id_jag_gap_warnings(logger_mock) + assert len(warnings) == 1 + assert "no usable id_token" in str(warnings[0]) + + +@pytest.mark.asyncio +async def test_no_warning_when_the_assertion_was_captured(monkeypatch): + from litellm.proxy._experimental.mcp_server.outbound_credentials.sso_assertion_store import ( + assertion_from_sso_login, + ) + from litellm.proxy.management_endpoints.ui_sso import ( + warn_if_id_jag_assertion_uncaptured, + ) + + monkeypatch.setenv("GOOGLE_CLIENT_ID", "cid") + assertion = assertion_from_sso_login(_ema_id_token(), None) + assert assertion is not None + + retention_mock = AsyncMock(return_value=True) + logger_mock = MagicMock() + with ( + patch( + "litellm.proxy.management_endpoints.ui_sso.ema_assertion_retention_enabled", + retention_mock, + ), + patch("litellm.proxy.management_endpoints.ui_sso.verbose_proxy_logger", logger_mock), + ): + await warn_if_id_jag_assertion_uncaptured(assertion) + + assert _id_jag_gap_warnings(logger_mock) == [] + retention_mock.assert_not_awaited() + + +@pytest.mark.asyncio +async def test_no_warning_when_no_id_jag_server_is_registered(monkeypatch): + """Most deployments never register one; a warning about ID-JAG on every login there would + be pure noise and would train operators to ignore it.""" + from litellm.proxy.management_endpoints.ui_sso import ( + warn_if_id_jag_assertion_uncaptured, + ) + + monkeypatch.setenv("GOOGLE_CLIENT_ID", "cid") + logger_mock = MagicMock() + with ( + patch( + "litellm.proxy.management_endpoints.ui_sso.ema_assertion_retention_enabled", + AsyncMock(return_value=False), + ), + patch("litellm.proxy.management_endpoints.ui_sso.verbose_proxy_logger", logger_mock), + ): + await warn_if_id_jag_assertion_uncaptured(None) + + assert _id_jag_gap_warnings(logger_mock) == [] + + +@pytest.mark.asyncio +async def test_store_outage_does_not_break_the_login(monkeypatch): + from litellm.proxy.management_endpoints.ui_sso import ( + warn_if_id_jag_assertion_uncaptured, + ) + + monkeypatch.setenv("GOOGLE_CLIENT_ID", "cid") + with ( + patch( + "litellm.proxy.management_endpoints.ui_sso.ema_assertion_retention_enabled", + AsyncMock(side_effect=Exception("db down")), + ), + patch("litellm.proxy.management_endpoints.ui_sso.verbose_proxy_logger", MagicMock()), + ): + await warn_if_id_jag_assertion_uncaptured(None) + + +@pytest.mark.asyncio +async def test_browser_funnel_reports_an_uncaptured_assertion(monkeypatch): + """Wiring: the browser login path must reach the diagnostic, not just define it.""" + monkeypatch.setenv("GOOGLE_CLIENT_ID", "cid") + mock_request = MagicMock(spec=Request) + mock_request.base_url = "http://localhost:4000/" + mock_request.cookies = {} + + logger_mock = MagicMock() + with ( + patch("litellm.proxy.utils.get_prisma_client_or_throw", return_value=MagicMock()), + patch("litellm.proxy.proxy_server.master_key", "sk-master"), + patch("litellm.proxy.proxy_server.general_settings", {}), + patch("litellm.proxy.proxy_server.premium_user", False), + patch("litellm.proxy.proxy_server.user_custom_sso", None), + patch("litellm.proxy.proxy_server.proxy_logging_obj", MagicMock()), + patch("litellm.proxy.proxy_server.redis_usage_cache", None), + patch("litellm.proxy.proxy_server.user_api_key_cache", MagicMock()), + patch( + "litellm.proxy.proxy_server.generate_key_helper_fn", + AsyncMock(return_value={"token": "sk-ui-key", "user_id": "canonical-user-id"}), + ), + patch( + "litellm.proxy.management_endpoints.ui_sso.get_user_info_from_db", + AsyncMock(return_value=None), + ), + patch( + "litellm.proxy.management_endpoints.ui_sso.check_and_update_if_proxy_admin_id", + AsyncMock(return_value="internal_user"), + ), + patch( + "litellm.proxy.management_endpoints.ui_sso.retain_sso_identity_assertion_for_ema", + AsyncMock(), + ), + patch( + "litellm.proxy.management_endpoints.ui_sso.ema_assertion_retention_enabled", + AsyncMock(return_value=True), + ), + patch("litellm.proxy.management_endpoints.ui_sso.verbose_proxy_logger", logger_mock), + ): + await SSOAuthenticationHandler.get_redirect_response_from_openid( + result=CustomOpenID( + id="raw-idp-subject", + email="u@example.com", + first_name="U", + last_name="Ser", + display_name="U Ser", + provider="google", + team_ids=[], + user_role=None, + ), + request=mock_request, + received_response=None, + generic_client_id=None, + ui_access_mode=None, + access_token_payload=None, + jwt_handler=None, + sso_assertion=None, + ) + + warnings = _id_jag_gap_warnings(logger_mock) + assert len(warnings) == 1 + assert "google" in str(warnings[0]) + + +@pytest.mark.asyncio +async def test_cli_funnel_reports_an_uncaptured_assertion(monkeypatch): + """Wiring: the CLI login path shares the gap, so it must share the diagnostic.""" + from litellm.proxy.management_endpoints.ui_sso import ( + _complete_cli_sso_callback_session, + ) + + monkeypatch.setenv("MICROSOFT_CLIENT_ID", "cid") + mock_request = MagicMock(spec=Request) + mock_request.base_url = "http://localhost:4000/" + + user_info = MagicMock() + user_info.user_id = "cli-user-id" + user_info.user_role = "internal_user" + user_info.models = [] + user_info.teams = [] + + logger_mock = MagicMock() + with ( + patch( + "litellm.proxy.management_endpoints.ui_sso.get_user_info_from_db", + AsyncMock(return_value=user_info), + ), + patch( + "litellm.proxy.management_endpoints.ui_sso._fetch_cli_sso_team_details", + AsyncMock(return_value=[]), + ), + patch( + "litellm.proxy.management_endpoints.ui_sso.build_cli_sso_attribution_metadata", + return_value={}, + ), + patch( + "litellm.proxy.management_endpoints.ui_sso.retain_sso_identity_assertion_for_ema", + AsyncMock(), + ), + patch( + "litellm.proxy.management_endpoints.ui_sso.ema_assertion_retention_enabled", + AsyncMock(return_value=True), + ), + patch("litellm.proxy.management_endpoints.ui_sso.verbose_proxy_logger", logger_mock), + ): + await _complete_cli_sso_callback_session( + request=mock_request, + key="cli-login-id", + flow={}, + result={"sub": "raw-idp-subject"}, + parsed_openid_result={ + "user_id": "raw-idp-subject", + "user_email": "u@example.com", + "user_role": None, + }, + user_defined_values=None, + prisma_client=MagicMock(), + user_api_key_cache=MagicMock(), + cli_sso_session_cache=MagicMock(), + proxy_logging_obj=MagicMock(), + sso_assertion=None, + ) + + warnings = _id_jag_gap_warnings(logger_mock) + assert len(warnings) == 1 + assert "microsoft" in str(warnings[0]) + + class TestSameOriginReturnPath: """The same-origin relative return_to arm added for the MCP gateway DCR authorize round-trip: only strictly relative paths qualify, so login can never redirect the