current version

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

authentik/flows/views/executor.py

@@ -69,6 +69,7 @@ SESSION_KEY_APPLICATION_PRE = "authentik/flows/application_pre"
 SESSION_KEY_GET = "authentik/flows/get"
 SESSION_KEY_POST = "authentik/flows/post"
 SESSION_KEY_HISTORY = "authentik/flows/history"
+SESSION_KEY_AUTH_STARTED = "authentik/flows/auth_started"
 QS_KEY_TOKEN = "flow_token"  # nosec
 QS_QUERY = "query"
 
@@ -454,6 +455,7 @@ class FlowExecutorView(APIView):
             SESSION_KEY_APPLICATION_PRE,
             SESSION_KEY_PLAN,
             SESSION_KEY_GET,
+            SESSION_KEY_AUTH_STARTED,
             # We might need the initial POST payloads for later requests
             # SESSION_KEY_POST,
             # We don't delete the history on purpose, as a user might

authentik/flows/views/interface.py

@@ -6,7 +6,8 @@ from django.shortcuts import get_object_or_404
 from ua_parser.user_agent_parser import Parse
 
 from authentik.core.views.interface import InterfaceView
-from authentik.flows.models import Flow
+from authentik.flows.models import Flow, FlowDesignation
+from authentik.flows.views.executor import SESSION_KEY_AUTH_STARTED
 
 
 class FlowInterfaceView(InterfaceView):
@@ -14,6 +15,12 @@ class FlowInterfaceView(InterfaceView):
 
     def get_context_data(self, **kwargs: Any) -> dict[str, Any]:
         flow = get_object_or_404(Flow, slug=self.kwargs.get("flow_slug"))
+        if (
+            not self.request.user.is_authenticated
+            and flow.designation == FlowDesignation.AUTHENTICATION
+        ):
+            self.request.session[SESSION_KEY_AUTH_STARTED] = True
+            self.request.session.save()
         kwargs["flow"] = flow
         kwargs["flow_background_url"] = flow.background_url(self.request)
         kwargs["inspector"] = "inspector" in self.request.GET

authentik/policies/apps.py

@@ -39,3 +39,4 @@ class AuthentikPoliciesConfig(ManagedAppConfig):
     label = "authentik_policies"
     verbose_name = "authentik Policies"
     default = True
+    mountpoint = "policy/"

authentik/policies/templates/policies/buffer.html

@@ -0,0 +1,89 @@
+{% extends 'login/base_full.html' %}
+
+{% load static %}
+{% load i18n %}
+
+{% block head %}
+{{ block.super }}
+<script>
+  let redirecting = false;
+  const checkAuth = async () => {
+    if (redirecting) return true;
+    const url = "{{ check_auth_url }}";
+    console.debug("authentik/policies/buffer: Checking authentication...");
+    try {
+      const result = await fetch(url, {
+        method: "HEAD",
+      });
+      if (result.status >= 400) {
+        return false
+      }
+      console.debug("authentik/policies/buffer: Continuing");
+      redirecting = true;
+      if ("{{ auth_req_method }}" === "post") {
+        document.querySelector("form").submit();
+      } else {
+        window.location.assign("{{ continue_url|escapejs }}");
+      }
+    } catch {
+      return false;
+    }
+  };
+  let timeout = 100;
+  let offset = 20;
+  let attempt = 0;
+  const main = async () => {
+    attempt += 1;
+    await checkAuth();
+    console.debug(`authentik/policies/buffer: Waiting ${timeout}ms...`);
+    setTimeout(main, timeout);
+    timeout += (offset * attempt);
+    if (timeout >= 2000) {
+      timeout = 2000;
+    }
+  }
+  document.addEventListener("visibilitychange", async () => {
+    if (document.hidden) return;
+    console.debug("authentik/policies/buffer: Checking authentication on tab activate...");
+    await checkAuth();
+  });
+  main();
+</script>
+{% endblock %}
+
+{% block title %}
+{% trans 'Waiting for authentication...' %} - {{ brand.branding_title }}
+{% endblock %}
+
+{% block card_title %}
+{% trans 'Waiting for authentication...' %}
+{% endblock %}
+
+{% block card %}
+<form class="pf-c-form" method="{{ auth_req_method }}" action="{{ continue_url }}">
+  {% if auth_req_method == "post" %}
+    {% for key, value in auth_req_body.items %}
+      <input type="hidden" name="{{ key }}" value="{{ value }}" />
+    {% endfor %}
+  {% endif %}
+  <div class="pf-c-empty-state">
+    <div class="pf-c-empty-state__content">
+      <div class="pf-c-empty-state__icon">
+        <span class="pf-c-spinner pf-m-xl" role="progressbar">
+          <span class="pf-c-spinner__clipper"></span>
+          <span class="pf-c-spinner__lead-ball"></span>
+          <span class="pf-c-spinner__tail-ball"></span>
+        </span>
+      </div>
+      <h1 class="pf-c-title pf-m-lg">
+        {% trans "You're already authenticating in another tab. This page will refresh once authentication is completed." %}
+      </h1>
+    </div>
+  </div>
+  <div class="pf-c-form__group pf-m-action">
+    <a href="{{ auth_req_url }}" class="pf-c-button pf-m-primary pf-m-block">
+      {% trans "Authenticate in this tab" %}
+    </a>
+  </div>
+</form>
+{% endblock %}

authentik/policies/tests/test_views.py

@@ -0,0 +1,121 @@
+from django.contrib.auth.models import AnonymousUser
+from django.contrib.sessions.middleware import SessionMiddleware
+from django.http import HttpResponse
+from django.test import RequestFactory, TestCase
+from django.urls import reverse
+
+from authentik.core.models import Application, Provider
+from authentik.core.tests.utils import create_test_flow, create_test_user
+from authentik.flows.models import FlowDesignation
+from authentik.flows.planner import FlowPlan
+from authentik.flows.views.executor import SESSION_KEY_PLAN
+from authentik.lib.generators import generate_id
+from authentik.lib.tests.utils import dummy_get_response
+from authentik.policies.views import (
+    QS_BUFFER_ID,
+    SESSION_KEY_BUFFER,
+    BufferedPolicyAccessView,
+    BufferView,
+    PolicyAccessView,
+)
+
+
+class TestPolicyViews(TestCase):
+    """Test PolicyAccessView"""
+
+    def setUp(self):
+        super().setUp()
+        self.factory = RequestFactory()
+        self.user = create_test_user()
+
+    def test_pav(self):
+        """Test simple policy access view"""
+        provider = Provider.objects.create(
+            name=generate_id(),
+        )
+        app = Application.objects.create(name=generate_id(), slug=generate_id(), provider=provider)
+
+        class TestView(PolicyAccessView):
+            def resolve_provider_application(self):
+                self.provider = provider
+                self.application = app
+
+            def get(self, *args, **kwargs):
+                return HttpResponse("foo")
+
+        req = self.factory.get("/")
+        req.user = self.user
+        res = TestView.as_view()(req)
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.content, b"foo")
+
+    def test_pav_buffer(self):
+        """Test simple policy access view"""
+        provider = Provider.objects.create(
+            name=generate_id(),
+        )
+        app = Application.objects.create(name=generate_id(), slug=generate_id(), provider=provider)
+        flow = create_test_flow(FlowDesignation.AUTHENTICATION)
+
+        class TestView(BufferedPolicyAccessView):
+            def resolve_provider_application(self):
+                self.provider = provider
+                self.application = app
+
+            def get(self, *args, **kwargs):
+                return HttpResponse("foo")
+
+        req = self.factory.get("/")
+        req.user = AnonymousUser()
+        middleware = SessionMiddleware(dummy_get_response)
+        middleware.process_request(req)
+        req.session[SESSION_KEY_PLAN] = FlowPlan(flow.pk)
+        req.session.save()
+        res = TestView.as_view()(req)
+        self.assertEqual(res.status_code, 302)
+        self.assertTrue(res.url.startswith(reverse("authentik_policies:buffer")))
+
+    def test_pav_buffer_skip(self):
+        """Test simple policy access view (skip buffer)"""
+        provider = Provider.objects.create(
+            name=generate_id(),
+        )
+        app = Application.objects.create(name=generate_id(), slug=generate_id(), provider=provider)
+        flow = create_test_flow(FlowDesignation.AUTHENTICATION)
+
+        class TestView(BufferedPolicyAccessView):
+            def resolve_provider_application(self):
+                self.provider = provider
+                self.application = app
+
+            def get(self, *args, **kwargs):
+                return HttpResponse("foo")
+
+        req = self.factory.get("/?skip_buffer=true")
+        req.user = AnonymousUser()
+        middleware = SessionMiddleware(dummy_get_response)
+        middleware.process_request(req)
+        req.session[SESSION_KEY_PLAN] = FlowPlan(flow.pk)
+        req.session.save()
+        res = TestView.as_view()(req)
+        self.assertEqual(res.status_code, 302)
+        self.assertTrue(res.url.startswith(reverse("authentik_flows:default-authentication")))
+
+    def test_buffer(self):
+        """Test buffer view"""
+        uid = generate_id()
+        req = self.factory.get(f"/?{QS_BUFFER_ID}={uid}")
+        req.user = AnonymousUser()
+        middleware = SessionMiddleware(dummy_get_response)
+        middleware.process_request(req)
+        ts = generate_id()
+        req.session[SESSION_KEY_BUFFER % uid] = {
+            "method": "get",
+            "body": {},
+            "url": f"/{ts}",
+        }
+        req.session.save()
+
+        res = BufferView.as_view()(req)
+        self.assertEqual(res.status_code, 200)
+        self.assertIn(ts, res.render().content.decode())

authentik/policies/urls.py

@@ -1,7 +1,14 @@
 """API URLs"""
 
+from django.urls import path
+
 from authentik.policies.api.bindings import PolicyBindingViewSet
 from authentik.policies.api.policies import PolicyViewSet
+from authentik.policies.views import BufferView
+
+urlpatterns = [
+    path("buffer", BufferView.as_view(), name="buffer"),
+]
 
 api_urlpatterns = [
     ("policies/all", PolicyViewSet),

authentik/policies/views.py

@@ -1,23 +1,37 @@
 """authentik access helper classes"""
 
 from typing import Any
+from uuid import uuid4
 
 from django.contrib import messages
 from django.contrib.auth.mixins import AccessMixin
 from django.contrib.auth.views import redirect_to_login
-from django.http import HttpRequest, HttpResponse
+from django.http import HttpRequest, HttpResponse, QueryDict
+from django.shortcuts import redirect
+from django.urls import reverse
+from django.utils.http import urlencode
 from django.utils.translation import gettext as _
-from django.views.generic.base import View
+from django.views.generic.base import TemplateView, View
 from structlog.stdlib import get_logger
 
 from authentik.core.models import Application, Provider, User
-from authentik.flows.views.executor import SESSION_KEY_APPLICATION_PRE, SESSION_KEY_POST
+from authentik.flows.models import Flow, FlowDesignation
+from authentik.flows.planner import FlowPlan
+from authentik.flows.views.executor import (
+    SESSION_KEY_APPLICATION_PRE,
+    SESSION_KEY_AUTH_STARTED,
+    SESSION_KEY_PLAN,
+    SESSION_KEY_POST,
+)
 from authentik.lib.sentry import SentryIgnoredException
 from authentik.policies.denied import AccessDeniedResponse
 from authentik.policies.engine import PolicyEngine
 from authentik.policies.types import PolicyRequest, PolicyResult
 
 LOGGER = get_logger()
+QS_BUFFER_ID = "af_bf_id"
+QS_SKIP_BUFFER = "skip_buffer"
+SESSION_KEY_BUFFER = "authentik/policies/pav_buffer/%s"
 
 
 class RequestValidationError(SentryIgnoredException):
@@ -125,3 +139,65 @@ class PolicyAccessView(AccessMixin, View):
             for message in result.messages:
                 messages.error(self.request, _(message))
         return result
+
+
+def url_with_qs(url: str, **kwargs):
+    """Update/set querystring of `url` with the parameters in `kwargs`. Original query string
+    parameters are retained"""
+    if "?" not in url:
+        return url + f"?{urlencode(kwargs)}"
+    url, _, qs = url.partition("?")
+    qs = QueryDict(qs, mutable=True)
+    qs.update(kwargs)
+    return url + f"?{urlencode(qs.items())}"
+
+
+class BufferView(TemplateView):
+    """Buffer view"""
+
+    template_name = "policies/buffer.html"
+
+    def get_context_data(self, **kwargs):
+        buf_id = self.request.GET.get(QS_BUFFER_ID)
+        buffer: dict = self.request.session.get(SESSION_KEY_BUFFER % buf_id)
+        kwargs["auth_req_method"] = buffer["method"]
+        kwargs["auth_req_body"] = buffer["body"]
+        kwargs["auth_req_url"] = url_with_qs(buffer["url"], **{QS_SKIP_BUFFER: True})
+        kwargs["check_auth_url"] = reverse("authentik_api:user-me")
+        kwargs["continue_url"] = url_with_qs(buffer["url"], **{QS_BUFFER_ID: buf_id})
+        return super().get_context_data(**kwargs)
+
+
+class BufferedPolicyAccessView(PolicyAccessView):
+    """PolicyAccessView which buffers access requests in case the user is not logged in"""
+
+    def handle_no_permission(self):
+        plan: FlowPlan | None = self.request.session.get(SESSION_KEY_PLAN)
+        authenticating = self.request.session.get(SESSION_KEY_AUTH_STARTED)
+        if plan:
+            flow = Flow.objects.filter(pk=plan.flow_pk).first()
+            if not flow or flow.designation != FlowDesignation.AUTHENTICATION:
+                LOGGER.debug("Not buffering request, no flow or flow not for authentication")
+                return super().handle_no_permission()
+        if not plan and authenticating is None:
+            LOGGER.debug("Not buffering request, no flow plan active")
+            return super().handle_no_permission()
+        if self.request.GET.get(QS_SKIP_BUFFER):
+            LOGGER.debug("Not buffering request, explicit skip")
+            return super().handle_no_permission()
+        buffer_id = str(uuid4())
+        LOGGER.debug("Buffering access request", bf_id=buffer_id)
+        self.request.session[SESSION_KEY_BUFFER % buffer_id] = {
+            "body": self.request.POST,
+            "url": self.request.build_absolute_uri(self.request.get_full_path()),
+            "method": self.request.method.lower(),
+        }
+        return redirect(
+            url_with_qs(reverse("authentik_policies:buffer"), **{QS_BUFFER_ID: buffer_id})
+        )
+
+    def dispatch(self, request, *args, **kwargs):
+        response = super().dispatch(request, *args, **kwargs)
+        if QS_BUFFER_ID in self.request.GET:
+            self.request.session.pop(SESSION_KEY_BUFFER % self.request.GET[QS_BUFFER_ID], None)
+        return response

authentik/providers/oauth2/views/authorize.py

@@ -30,7 +30,7 @@ from authentik.flows.stage import StageView
 from authentik.lib.utils.time import timedelta_from_string
 from authentik.lib.views import bad_request_message
 from authentik.policies.types import PolicyRequest
-from authentik.policies.views import PolicyAccessView, RequestValidationError
+from authentik.policies.views import BufferedPolicyAccessView, RequestValidationError
 from authentik.providers.oauth2.constants import (
     PKCE_METHOD_PLAIN,
     PKCE_METHOD_S256,
@@ -326,7 +326,7 @@ class OAuthAuthorizationParams:
         return code
 
 
-class AuthorizationFlowInitView(PolicyAccessView):
+class AuthorizationFlowInitView(BufferedPolicyAccessView):
     """OAuth2 Flow initializer, checks access to application and starts flow"""
 
     params: OAuthAuthorizationParams

authentik/providers/rac/views.py

@@ -18,11 +18,11 @@ from authentik.flows.planner import PLAN_CONTEXT_APPLICATION, FlowPlanner
 from authentik.flows.stage import RedirectStage
 from authentik.lib.utils.time import timedelta_from_string
 from authentik.policies.engine import PolicyEngine
-from authentik.policies.views import PolicyAccessView
+from authentik.policies.views import BufferedPolicyAccessView
 from authentik.providers.rac.models import ConnectionToken, Endpoint, RACProvider
 
 
-class RACStartView(PolicyAccessView):
+class RACStartView(BufferedPolicyAccessView):
     """Start a RAC connection by checking access and creating a connection token"""
 
     endpoint: Endpoint

authentik/providers/saml/views/flows.py

@@ -35,8 +35,8 @@ REQUEST_KEY_SAML_SIG_ALG = "SigAlg"
 REQUEST_KEY_SAML_RESPONSE = "SAMLResponse"
 REQUEST_KEY_RELAY_STATE = "RelayState"
 
-SESSION_KEY_AUTH_N_REQUEST = "authentik/providers/saml/authn_request"
+PLAN_CONTEXT_SAML_AUTH_N_REQUEST = "authentik/providers/saml/authn_request"
-SESSION_KEY_LOGOUT_REQUEST = "authentik/providers/saml/logout_request"
+PLAN_CONTEXT_SAML_LOGOUT_REQUEST = "authentik/providers/saml/logout_request"
 
 
 # This View doesn't have a URL on purpose, as its called by the FlowExecutor
@@ -50,10 +50,11 @@ class SAMLFlowFinalView(ChallengeStageView):
     def get(self, request: HttpRequest, *args, **kwargs) -> HttpResponse:
         application: Application = self.executor.plan.context[PLAN_CONTEXT_APPLICATION]
         provider: SAMLProvider = get_object_or_404(SAMLProvider, pk=application.provider_id)
-        if SESSION_KEY_AUTH_N_REQUEST not in self.request.session:
+        if PLAN_CONTEXT_SAML_AUTH_N_REQUEST not in self.executor.plan.context:
+            self.logger.warning("No AuthNRequest in context")
             return self.executor.stage_invalid()
 
-        auth_n_request: AuthNRequest = self.request.session.pop(SESSION_KEY_AUTH_N_REQUEST)
+        auth_n_request: AuthNRequest = self.executor.plan.context[PLAN_CONTEXT_SAML_AUTH_N_REQUEST]
         try:
             response = AssertionProcessor(provider, request, auth_n_request).build_response()
         except SAMLException as exc:
@@ -106,6 +107,3 @@ class SAMLFlowFinalView(ChallengeStageView):
     def challenge_valid(self, response: ChallengeResponse) -> HttpResponse:
         # We'll never get here since the challenge redirects to the SP
         return HttpResponseBadRequest()
-
-    def cleanup(self):
-        self.request.session.pop(SESSION_KEY_AUTH_N_REQUEST, None)

authentik/providers/saml/views/slo.py

@@ -19,9 +19,9 @@ from authentik.providers.saml.exceptions import CannotHandleAssertion
 from authentik.providers.saml.models import SAMLProvider
 from authentik.providers.saml.processors.logout_request_parser import LogoutRequestParser
 from authentik.providers.saml.views.flows import (
+    PLAN_CONTEXT_SAML_LOGOUT_REQUEST,
     REQUEST_KEY_RELAY_STATE,
     REQUEST_KEY_SAML_REQUEST,
-    SESSION_KEY_LOGOUT_REQUEST,
 )
 
 LOGGER = get_logger()
@@ -33,6 +33,10 @@ class SAMLSLOView(PolicyAccessView):
 
     flow: Flow
 
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+        self.plan_context = {}
+
     def resolve_provider_application(self):
         self.application = get_object_or_404(Application, slug=self.kwargs["application_slug"])
         self.provider: SAMLProvider = get_object_or_404(
@@ -59,6 +63,7 @@ class SAMLSLOView(PolicyAccessView):
             request,
             {
                 PLAN_CONTEXT_APPLICATION: self.application,
+                **self.plan_context,
             },
         )
         plan.append_stage(in_memory_stage(SessionEndStage))
@@ -83,7 +88,7 @@ class SAMLSLOBindingRedirectView(SAMLSLOView):
                 self.request.GET[REQUEST_KEY_SAML_REQUEST],
                 relay_state=self.request.GET.get(REQUEST_KEY_RELAY_STATE, None),
             )
-            self.request.session[SESSION_KEY_LOGOUT_REQUEST] = logout_request
+            self.plan_context[PLAN_CONTEXT_SAML_LOGOUT_REQUEST] = logout_request
         except CannotHandleAssertion as exc:
             Event.new(
                 EventAction.CONFIGURATION_ERROR,
@@ -111,7 +116,7 @@ class SAMLSLOBindingPOSTView(SAMLSLOView):
                 payload[REQUEST_KEY_SAML_REQUEST],
                 relay_state=payload.get(REQUEST_KEY_RELAY_STATE, None),
             )
-            self.request.session[SESSION_KEY_LOGOUT_REQUEST] = logout_request
+            self.plan_context[PLAN_CONTEXT_SAML_LOGOUT_REQUEST] = logout_request
         except CannotHandleAssertion as exc:
             LOGGER.info(str(exc))
             return bad_request_message(self.request, str(exc))

authentik/providers/saml/views/sso.py

@@ -15,16 +15,16 @@ from authentik.flows.models import in_memory_stage
 from authentik.flows.planner import PLAN_CONTEXT_APPLICATION, PLAN_CONTEXT_SSO, FlowPlanner
 from authentik.flows.views.executor import SESSION_KEY_POST
 from authentik.lib.views import bad_request_message
-from authentik.policies.views import PolicyAccessView
+from authentik.policies.views import BufferedPolicyAccessView
 from authentik.providers.saml.exceptions import CannotHandleAssertion
 from authentik.providers.saml.models import SAMLBindings, SAMLProvider
 from authentik.providers.saml.processors.authn_request_parser import AuthNRequestParser
 from authentik.providers.saml.views.flows import (
+    PLAN_CONTEXT_SAML_AUTH_N_REQUEST,
     REQUEST_KEY_RELAY_STATE,
     REQUEST_KEY_SAML_REQUEST,
     REQUEST_KEY_SAML_SIG_ALG,
     REQUEST_KEY_SAML_SIGNATURE,
-    SESSION_KEY_AUTH_N_REQUEST,
     SAMLFlowFinalView,
 )
 from authentik.stages.consent.stage import (
@@ -35,10 +35,14 @@ from authentik.stages.consent.stage import (
 LOGGER = get_logger()
 
 
-class SAMLSSOView(PolicyAccessView):
+class SAMLSSOView(BufferedPolicyAccessView):
     """SAML SSO Base View, which plans a flow and injects our final stage.
     Calls get/post handler."""
 
+    def __init__(self, **kwargs):
+        super().__init__(**kwargs)
+        self.plan_context = {}
+
     def resolve_provider_application(self):
         self.application = get_object_or_404(Application, slug=self.kwargs["application_slug"])
         self.provider: SAMLProvider = get_object_or_404(
@@ -68,6 +72,7 @@ class SAMLSSOView(PolicyAccessView):
                     PLAN_CONTEXT_CONSENT_HEADER: _("You're about to sign into %(application)s.")
                     % {"application": self.application.name},
                     PLAN_CONTEXT_CONSENT_PERMISSIONS: [],
+                    **self.plan_context,
                 },
             )
         except FlowNonApplicableException:
@@ -83,7 +88,7 @@ class SAMLSSOView(PolicyAccessView):
 
     def post(self, request: HttpRequest, application_slug: str) -> HttpResponse:
         """GET and POST use the same handler, but we can't
-        override .dispatch easily because PolicyAccessView's dispatch"""
+        override .dispatch easily because BufferedPolicyAccessView's dispatch"""
         return self.get(request, application_slug)
 
 
@@ -103,7 +108,7 @@ class SAMLSSOBindingRedirectView(SAMLSSOView):
                 self.request.GET.get(REQUEST_KEY_SAML_SIGNATURE),
                 self.request.GET.get(REQUEST_KEY_SAML_SIG_ALG),
             )
-            self.request.session[SESSION_KEY_AUTH_N_REQUEST] = auth_n_request
+            self.plan_context[PLAN_CONTEXT_SAML_AUTH_N_REQUEST] = auth_n_request
         except CannotHandleAssertion as exc:
             Event.new(
                 EventAction.CONFIGURATION_ERROR,
@@ -137,7 +142,7 @@ class SAMLSSOBindingPOSTView(SAMLSSOView):
                 payload[REQUEST_KEY_SAML_REQUEST],
                 payload.get(REQUEST_KEY_RELAY_STATE),
             )
-            self.request.session[SESSION_KEY_AUTH_N_REQUEST] = auth_n_request
+            self.plan_context[PLAN_CONTEXT_SAML_AUTH_N_REQUEST] = auth_n_request
         except CannotHandleAssertion as exc:
             LOGGER.info(str(exc))
             return bad_request_message(self.request, str(exc))
@@ -151,4 +156,4 @@ class SAMLSSOBindingInitView(SAMLSSOView):
         """Create SAML Response from scratch"""
         LOGGER.debug("No SAML Request, using IdP-initiated flow.")
         auth_n_request = AuthNRequestParser(self.provider).idp_initiated()
-        self.request.session[SESSION_KEY_AUTH_N_REQUEST] = auth_n_request
+        self.plan_context[PLAN_CONTEXT_SAML_AUTH_N_REQUEST] = auth_n_request

tests/e2e/test_provider_oauth2_grafana.py

@@ -410,3 +410,77 @@ class TestProviderOAuth2OAuth(SeleniumTestCase):
             self.driver.find_element(By.CSS_SELECTOR, "header > h1").text,
             "Permission denied",
         )
+
+    @retry()
+    @apply_blueprint(
+        "default/flow-default-authentication-flow.yaml",
+        "default/flow-default-invalidation-flow.yaml",
+    )
+    @apply_blueprint("default/flow-default-provider-authorization-implicit-consent.yaml")
+    @apply_blueprint("system/providers-oauth2.yaml")
+    @reconcile_app("authentik_crypto")
+    def test_authorization_consent_implied_parallel(self):
+        """test OpenID Provider flow (default authorization flow with implied consent)"""
+        # Bootstrap all needed objects
+        authorization_flow = Flow.objects.get(
+            slug="default-provider-authorization-implicit-consent"
+        )
+        provider = OAuth2Provider.objects.create(
+            name=generate_id(),
+            client_type=ClientTypes.CONFIDENTIAL,
+            client_id=self.client_id,
+            client_secret=self.client_secret,
+            signing_key=create_test_cert(),
+            redirect_uris=[
+                RedirectURI(
+                    RedirectURIMatchingMode.STRICT, "http://localhost:3000/login/generic_oauth"
+                )
+            ],
+            authorization_flow=authorization_flow,
+        )
+        provider.property_mappings.set(
+            ScopeMapping.objects.filter(
+                scope_name__in=[
+                    SCOPE_OPENID,
+                    SCOPE_OPENID_EMAIL,
+                    SCOPE_OPENID_PROFILE,
+                    SCOPE_OFFLINE_ACCESS,
+                ]
+            )
+        )
+        Application.objects.create(
+            name=generate_id(),
+            slug=self.app_slug,
+            provider=provider,
+        )
+
+        self.driver.get(self.live_server_url)
+        login_window = self.driver.current_window_handle
+
+        self.driver.switch_to.new_window("tab")
+        grafana_window = self.driver.current_window_handle
+        self.driver.get("http://localhost:3000")
+        self.driver.find_element(By.CLASS_NAME, "btn-service--oauth").click()
+
+        self.driver.switch_to.window(login_window)
+        self.login()
+
+        self.driver.switch_to.window(grafana_window)
+        self.wait_for_url("http://localhost:3000/?orgId=1")
+        self.driver.get("http://localhost:3000/profile")
+        self.assertEqual(
+            self.driver.find_element(By.CLASS_NAME, "page-header__title").text,
+            self.user.name,
+        )
+        self.assertEqual(
+            self.driver.find_element(By.CSS_SELECTOR, "input[name=name]").get_attribute("value"),
+            self.user.name,
+        )
+        self.assertEqual(
+            self.driver.find_element(By.CSS_SELECTOR, "input[name=email]").get_attribute("value"),
+            self.user.email,
+        )
+        self.assertEqual(
+            self.driver.find_element(By.CSS_SELECTOR, "input[name=login]").get_attribute("value"),
+            self.user.email,
+        )

tests/e2e/test_provider_saml.py

@@ -20,7 +20,7 @@ from tests.e2e.utils import SeleniumTestCase, retry
 class TestProviderSAML(SeleniumTestCase):
     """test SAML Provider flow"""
 
-    def setup_client(self, provider: SAMLProvider, force_post: bool = False):
+    def setup_client(self, provider: SAMLProvider, force_post: bool = False, **kwargs):
         """Setup client saml-sp container which we test SAML against"""
         metadata_url = (
             self.url(
@@ -40,6 +40,7 @@ class TestProviderSAML(SeleniumTestCase):
                 "SP_ENTITY_ID": provider.issuer,
                 "SP_SSO_BINDING": "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST",
                 "SP_METADATA_URL": metadata_url,
+                **kwargs,
             },
         )
 
@@ -111,6 +112,74 @@ class TestProviderSAML(SeleniumTestCase):
             [self.user.email],
         )
 
+    @retry()
+    @apply_blueprint(
+        "default/flow-default-authentication-flow.yaml",
+        "default/flow-default-invalidation-flow.yaml",
+    )
+    @apply_blueprint(
+        "default/flow-default-provider-authorization-implicit-consent.yaml",
+    )
+    @apply_blueprint(
+        "system/providers-saml.yaml",
+    )
+    @reconcile_app("authentik_crypto")
+    def test_sp_initiated_implicit_post(self):
+        """test SAML Provider flow SP-initiated flow (implicit consent)"""
+        # Bootstrap all needed objects
+        authorization_flow = Flow.objects.get(
+            slug="default-provider-authorization-implicit-consent"
+        )
+        provider: SAMLProvider = SAMLProvider.objects.create(
+            name="saml-test",
+            acs_url="http://localhost:9009/saml/acs",
+            audience="authentik-e2e",
+            issuer="authentik-e2e",
+            sp_binding=SAMLBindings.POST,
+            authorization_flow=authorization_flow,
+            signing_kp=create_test_cert(),
+        )
+        provider.property_mappings.set(SAMLPropertyMapping.objects.all())
+        provider.save()
+        Application.objects.create(
+            name="SAML",
+            slug="authentik-saml",
+            provider=provider,
+        )
+        self.setup_client(provider, True)
+        self.driver.get("http://localhost:9009")
+        self.login()
+        self.wait_for_url("http://localhost:9009/")
+
+        body = loads(self.driver.find_element(By.CSS_SELECTOR, "pre").text)
+
+        self.assertEqual(
+            body["attr"]["http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name"],
+            [self.user.name],
+        )
+        self.assertEqual(
+            body["attr"][
+                "http://schemas.microsoft.com/ws/2008/06/identity/claims/windowsaccountname"
+            ],
+            [self.user.username],
+        )
+        self.assertEqual(
+            body["attr"]["http://schemas.goauthentik.io/2021/02/saml/username"],
+            [self.user.username],
+        )
+        self.assertEqual(
+            body["attr"]["http://schemas.goauthentik.io/2021/02/saml/uid"],
+            [str(self.user.pk)],
+        )
+        self.assertEqual(
+            body["attr"]["http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress"],
+            [self.user.email],
+        )
+        self.assertEqual(
+            body["attr"]["http://schemas.xmlsoap.org/ws/2005/05/identity/claims/upn"],
+            [self.user.email],
+        )
+
     @retry()
     @apply_blueprint(
         "default/flow-default-authentication-flow.yaml",
@@ -450,3 +519,81 @@ class TestProviderSAML(SeleniumTestCase):
             lambda driver: driver.current_url.startswith(should_url),
             f"URL {self.driver.current_url} doesn't match expected URL {should_url}",
         )
+
+    @retry()
+    @apply_blueprint(
+        "default/flow-default-authentication-flow.yaml",
+        "default/flow-default-invalidation-flow.yaml",
+    )
+    @apply_blueprint(
+        "default/flow-default-provider-authorization-implicit-consent.yaml",
+    )
+    @apply_blueprint(
+        "system/providers-saml.yaml",
+    )
+    @reconcile_app("authentik_crypto")
+    def test_sp_initiated_implicit_post_buffer(self):
+        """test SAML Provider flow SP-initiated flow (implicit consent)"""
+        # Bootstrap all needed objects
+        authorization_flow = Flow.objects.get(
+            slug="default-provider-authorization-implicit-consent"
+        )
+        provider: SAMLProvider = SAMLProvider.objects.create(
+            name="saml-test",
+            acs_url=f"http://{self.host}:9009/saml/acs",
+            audience="authentik-e2e",
+            issuer="authentik-e2e",
+            sp_binding=SAMLBindings.POST,
+            authorization_flow=authorization_flow,
+            signing_kp=create_test_cert(),
+        )
+        provider.property_mappings.set(SAMLPropertyMapping.objects.all())
+        provider.save()
+        Application.objects.create(
+            name="SAML",
+            slug="authentik-saml",
+            provider=provider,
+        )
+        self.setup_client(provider, True, SP_ROOT_URL=f"http://{self.host}:9009")
+
+        self.driver.get(self.live_server_url)
+        login_window = self.driver.current_window_handle
+        self.driver.switch_to.new_window("tab")
+        client_window = self.driver.current_window_handle
+        # We need to access the SP on the same host as the IdP for SameSite cookies
+        self.driver.get(f"http://{self.host}:9009")
+
+        self.driver.switch_to.window(login_window)
+        self.login()
+        self.driver.switch_to.window(client_window)
+
+        self.wait_for_url(f"http://{self.host}:9009/")
+
+        body = loads(self.driver.find_element(By.CSS_SELECTOR, "pre").text)
+
+        self.assertEqual(
+            body["attr"]["http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name"],
+            [self.user.name],
+        )
+        self.assertEqual(
+            body["attr"][
+                "http://schemas.microsoft.com/ws/2008/06/identity/claims/windowsaccountname"
+            ],
+            [self.user.username],
+        )
+        self.assertEqual(
+            body["attr"]["http://schemas.goauthentik.io/2021/02/saml/username"],
+            [self.user.username],
+        )
+        self.assertEqual(
+            body["attr"]["http://schemas.goauthentik.io/2021/02/saml/uid"],
+            [str(self.user.pk)],
+        )
+        self.assertEqual(
+            body["attr"]["http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress"],
+            [self.user.email],
+        )
+        self.assertEqual(
+            body["attr"]["http://schemas.xmlsoap.org/ws/2005/05/identity/claims/upn"],
+            [self.user.email],
+        )