streams: Return archived web-public channels.

zerver/lib/message.py

@@ -480,7 +480,6 @@ def access_web_public_message(
     # These should all have been enforced by the code in
     # get_web_public_streams_queryset
     assert stream.is_web_public
-    assert not stream.deactivated
     assert not stream.invite_only
     assert stream.history_public_to_subscribers
 

zerver/lib/streams.py

@@ -870,11 +870,6 @@ def get_web_public_streams_queryset(realm: Realm) -> QuerySet[Stream]:
     return Stream.objects.filter(
         realm=realm,
         is_web_public=True,
-        # In theory, nothing conflicts with allowing web-public access
-        # to deactivated streams.  However, we should offer a way to
-        # review archived streams and adjust their settings before
-        # allowing that configuration to exist.
-        deactivated=False,
         # In theory, is_web_public=True implies invite_only=False and
         # history_public_to_subscribers=True, but it's safer to include
         # these in the query.

zerver/tests/test_message_edit.py

@@ -335,12 +335,12 @@ class EditMessageTest(ZulipTestCase):
             result, "Not logged in: API authentication or user session required", 401
         )
 
-        # Verify deactivated streams are rejected.  This may change in the future.
+        # Verify success with deactivated streams.
         do_deactivate_stream(web_public_stream, acting_user=None)
         result = self.client_get("/json/messages/" + str(web_public_stream_msg_id))
-        self.assert_json_error(
-            result, "Not logged in: API authentication or user session required", 401
-        )
+        response_dict = self.assert_json_success(result)
+        self.assertEqual(response_dict["raw_content"], "web-public message")
+        self.assertEqual(response_dict["message"]["flags"], ["read"])
 
     def test_fetch_raw_message_stream_wrong_realm(self) -> None:
         user_profile = self.example_user("hamlet")