src/app/settings.py

@@ -244,6 +244,9 @@ VLAN_ID_MAX = 4094
 VLAN_ID_MIN = (VLAN_ID_MAX - 850) + 1
 VLAN_AUTOCONNECT = credentials.get("VLAN_AUTOCONNECT", False)
 
+ISP_USERNAME = credentials["ISP_USERNAME"]
+ISP_PASSWORD = credentials["ISP_PASSWORD"]
+
 
 ###
 # Internationalization configuration

src/dgsi/urls.py

@@ -59,6 +59,10 @@ urlpatterns = [
         views.ServiceRedirectView.as_view(),
         name="service_redirect",
     ),
+    path(
+        "isp/vlan/<slug:username>/",
+        views.UserVlanISPView.as_view(),
+    ),
     ###
     # Profile views
     path(

src/dgsi/views.py

@@ -1,3 +1,4 @@
+import base64
 from mimetypes import guess_type
 from typing import Any, NamedTuple
 
@@ -300,6 +301,30 @@ class ServiceRedirectView(LoginRequiredMixin, SingleObjectMixin, RedirectView):
         return self.get_object().url
 
 
+class UserVlanISPView(View):
+    def get(self, request: HttpRequest, **kwargs: Any):
+        if "HTTP_AUTHORIZATION" in request.META:
+            auth = request.META["HTTP_AUTHORIZATION"].split()
+
+            if len(auth) == 2 and auth[0].lower() == "basic":
+                name, passwd = base64.b64decode(auth[1]).split(b":")
+
+                if name == settings.ISP_USERNAME and passwd == settings.ISP_PASSWORD:
+                    try:
+                        user = User.get(
+                            username=kwargs["username"], vlan_id__isnull=False
+                        )
+                        return HttpResponse(
+                            str(user.vlan_id), content_type="text/plain"
+                        )
+                    except User.DoesNotExist:
+                        return HttpResponse(status=400)
+
+        return HttpResponse(
+            status=401, headers={"WWW-Authenticate": 'Basic realm="DGNum ISP"'}
+        )
+
+
 ##
 # INFO: Below are views related to the administration of DGSI