Closes #20936: Add a REST API endpoint to validate authentication credentials

netbox/netbox/api/views.py

@@ -5,6 +5,7 @@ from django.conf import settings
 from django_rq.queues import get_connection
 from drf_spectacular.types import OpenApiTypes
 from drf_spectacular.utils import extend_schema
+from rest_framework.permissions import IsAuthenticated
 from rest_framework.response import Response
 from rest_framework.reverse import reverse
 from rest_framework.views import APIView
@@ -12,6 +13,7 @@ from rq.worker import Worker
 
 from netbox.api.authentication import IsAuthenticatedOrLoginNotRequired
 from netbox.plugins.utils import get_installed_plugins
+from users.api.serializers import UserSerializer
 from utilities.apps import get_installed_apps
 
 
@@ -62,3 +64,15 @@ class StatusView(APIView):
             'python-version': platform.python_version(),
             'rq-workers-running': Worker.count(get_connection('default')),
         })
+
+
+class AuthenticationCheckView(APIView):
+    """
+    Return the user making the request, if authenticated successfully.
+    """
+    permission_classes = [IsAuthenticated]
+
+    @extend_schema(responses={200: OpenApiTypes.OBJECT})
+    def get(self, request):
+        serializer = UserSerializer(request.user, context={'request': request})
+        return Response(serializer.data)

netbox/netbox/tests/test_api.py

@@ -32,6 +32,18 @@ class AppTest(APITestCase):
 
         self.assertEqual(response.status_code, 200)
 
+    def test_authentication_check(self):
+        url = reverse('api-authentication-check')
+
+        # Test an unauthenticated request
+        response = self.client.get(f'{url}')
+        self.assertEqual(response.status_code, 403)
+
+        # Test an authenticated request
+        response = self.client.get(f'{url}', **self.header)
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.data['id'], self.user.pk)
+
 
 class OptionalLimitOffsetPaginationTest(TestCase):
 

netbox/netbox/urls.py

@@ -5,7 +5,7 @@ from django.views.decorators.cache import cache_page
 from drf_spectacular.views import SpectacularAPIView, SpectacularRedocView, SpectacularSwaggerView
 
 from account.views import LoginView, LogoutView
-from netbox.api.views import APIRootView, StatusView
+from netbox.api.views import APIRootView, AuthenticationCheckView, StatusView
 from netbox.graphql.schema import schema
 from netbox.graphql.views import NetBoxGraphQLView
 from netbox.plugins.urls import plugin_patterns, plugin_api_patterns
@@ -53,6 +53,7 @@ _patterns = [
     path('api/vpn/', include('vpn.api.urls')),
     path('api/wireless/', include('wireless.api.urls')),
     path('api/status/', StatusView.as_view(), name='api-status'),
+    path('api/authentication-check/', AuthenticationCheckView.as_view(), name='api-authentication-check'),
 
     # REST API schema
     path(