api: add sentry tunnel

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

authentik/api/v2/sentry.py

@@ -0,0 +1,38 @@
+"""Sentry tunnel"""
+from json import loads
+
+from django.conf import settings
+from django.http.request import HttpRequest
+from django.http.response import HttpResponse
+from django.views.generic.base import View
+from requests import post
+from requests.exceptions import RequestException
+
+from authentik.lib.config import CONFIG
+
+
+class SentryTunnelView(View):
+    """Sentry tunnel, to prevent ad blockers from blocking sentry"""
+
+    def post(self, request: HttpRequest, *args, **kwargs) -> HttpResponse:
+        """Sentry tunnel, to prevent ad blockers from blocking sentry"""
+        # Only allow usage of this endpoint when error reporting is enabled
+        if not CONFIG.y_bool("error_reporting.enabled", False):
+            return HttpResponse(status=400)
+        # Body is 2 json objects separated by \n
+        full_body = request.body
+        header = loads(full_body.splitlines()[0])
+        # Check that the DSN is what we expect
+        dsn = header.get("dsn", "")
+        if dsn != settings.SENTRY_DSN:
+            return HttpResponse(status=400)
+        response = post(
+            "https://sentry.beryju.org/api/8/envelope/",
+            data=full_body,
+            headers={"Content-Type": "application/octet-stream"},
+        )
+        try:
+            response.raise_for_status()
+        except RequestException:
+            return HttpResponse(status=500)
+        return HttpResponse(status=response.status_code)

authentik/api/v2/urls.py

@@ -1,5 +1,6 @@
 """api v2 urls"""
 from django.urls import path
+from django.views.decorators.csrf import csrf_exempt
 from drf_spectacular.views import SpectacularAPIView
 from rest_framework import routers
 
@@ -10,6 +11,7 @@ from authentik.admin.api.tasks import TaskViewSet
 from authentik.admin.api.version import VersionView
 from authentik.admin.api.workers import WorkerView
 from authentik.api.v2.config import ConfigView
+from authentik.api.v2.sentry import SentryTunnelView
 from authentik.api.views import APIBrowserView
 from authentik.core.api.applications import ApplicationViewSet
 from authentik.core.api.authenticated_sessions import AuthenticatedSessionViewSet
@@ -235,6 +237,7 @@ urlpatterns = (
             FlowExecutorView.as_view(),
             name="flow-executor",
         ),
+        path("sentry/", csrf_exempt(SentryTunnelView.as_view()), name="sentry"),
         path("schema/", SpectacularAPIView.as_view(), name="schema"),
     ]
 )