fix: called set_actor even when is the user is anon

CHANGELOG.md

@@ -2,10 +2,14 @@
 
 ## Next Release
 
+#### Improvements
+
+- feat: Make timestamp in LogEntry overwritable. ([#476](https://github.com/jazzband/django-auditlog/pull/476))
+
 #### Fixes
 
 - fix: Make sure `LogEntry.changes_dict()` returns an empty dict instead of `None` when `json.loads()` returns `None`. ([#472](https://github.com/jazzband/django-auditlog/pull/472))
-- feat: Make timestamp in LogEntry overwritable. ([#476](https://github.com/jazzband/django-auditlog/pull/476))
+- fix: Always set remote_addr even if the request has no authenticated user. ([#484](https://github.com/jazzband/django-auditlog/pull/484))
 
 ## 2.2.1 (2022-11-28)
 

auditlog/context.py

@@ -3,7 +3,6 @@
 import time
 from functools import partial
 
-from django.contrib.auth import get_user_model
 from django.db.models.signals import pre_save
 
 from auditlog.models import LogEntry
@@ -55,12 +54,8 @@ def _set_actor(user, sender, instance, signal_duid, **kwargs):
     else:
         if signal_duid != auditlog["signal_duid"]:
             return
-        auth_user_model = get_user_model()
-        if (
-            sender == LogEntry
-            and isinstance(user, auth_user_model)
-            and instance.actor is None
-        ):
+
+        if sender == LogEntry and instance.actor is None:
             instance.actor = user
 
         instance.remote_addr = auditlog["remote_addr"]

auditlog/middleware.py

@@ -1,4 +1,4 @@
-import contextlib
+from django.contrib.auth import get_user_model
 
 from auditlog.context import set_actor
 
@@ -29,13 +29,16 @@ def _get_remote_addr(request):
 
         return remote_addr
 
+    @staticmethod
+    def _get_actor(request):
+        user = getattr(request, "user")
+        if isinstance(user, get_user_model()) and user.is_authenticated:
+            return user
+        return None
+
     def __call__(self, request):
         remote_addr = self._get_remote_addr(request)
+        user = self._get_actor(request)
 
-        if hasattr(request, "user") and request.user.is_authenticated:
-            context = set_actor(actor=request.user, remote_addr=remote_addr)
-        else:
-            context = contextlib.nullcontext()
-
-        with context:
+        with set_actor(actor=user, remote_addr=remote_addr):
             return self.get_response(request)

auditlog_tests/tests.py

@@ -428,7 +428,7 @@ def test_request_anonymous(self):
         request = self.factory.get("/")
         request.user = AnonymousUser()
 
-        self.get_response_mock.side_effect = self.side_effect(self.assert_no_listeners)
+        self.get_response_mock.side_effect = self.side_effect(self.assert_has_listeners)
 
         response = self.middleware(request)
 
@@ -481,6 +481,38 @@ def test_get_remote_addr(self):
                     self.middleware._get_remote_addr(request), expected_remote_addr
                 )
 
+    def test_set_actor_anonymous_request(self):
+        """
+        The remote address will be set even when there is no actor
+        """
+        remote_addr = "123.213.145.99"
+        actor = None
+
+        with set_actor(actor=actor, remote_addr=remote_addr):
+            obj = SimpleModel.objects.create(text="I am not difficult.")
+
+            history = obj.history.get()
+            self.assertEqual(
+                history.remote_addr,
+                remote_addr,
+                msg=f"Remote address is {remote_addr}",
+            )
+            self.assertIsNone(history.actor, msg="Actor is `None` for anonymous user")
+
+    def test_get_actor(self):
+        params = [
+            (AnonymousUser(), None, "The user is anonymous so the actor is `None`"),
+            (self.user, self.user, "The use is authenticated so it is the actor"),
+            (None, None, "There is no actor"),
+            ("1234", None, "The value of request.user is not a valid user model"),
+        ]
+        for user, actor, msg in params:
+            with self.subTest(msg):
+                request = self.factory.get("/")
+                request.user = user
+
+                self.assertEqual(self.middleware._get_actor(request), actor)
+
 
 class SimpleIncludeModelTest(TestCase):
     """Log only changes in include_fields"""