[Fixes #14095] Upload thumbnails through the UI for the remote spatial datasets

geonode/base/models.py

@@ -969,8 +969,16 @@ def can_have_wps_links(self):
     def can_have_style(self):
         return self.subtype not in {"tileStore", "remote"}
 
-    @property
-    def can_have_thumbnail(self):
+    def can_set_thumbnail(self, thumbnail_data=None):
+        """
+        Decide whether the resource allows setting a thumbnail.
+        Manual uploads are allowed; otherwise, only subtypes that
+        support auto-generated thumbnails are permitted.
+        """
+        if thumbnail_data:
+            return True
+
+        # No thumbnail data provided: allow only subtypes that support auto-generation.
         return self.subtype not in {"3dtiles", "cog", "flatgeobuf"}
 
     @property

geonode/resource/manager.py

@@ -959,7 +959,7 @@ def set_thumbnail(
         map_thumb_from_bbox: bool = False,
     ) -> bool:
         _resource = instance or BaseResourceManager._get_instance(uuid)
-        if _resource and _resource.can_have_thumbnail:
+        if _resource and _resource.can_set_thumbnail(thumbnail):
             try:
                 with transaction.atomic():
                     if thumbnail:

geonode/upload/handlers/common/remote.py

@@ -220,7 +220,7 @@ def create_geonode_resource(
             defaults=self.generate_resource_payload(layer_name, alternate, asset, _exec, None, **params),
         )
         # The thumbnail is not created for the following data types: "3dtiles", "cog", "flatgeobuf"
-        # because of the can_have_thumbnail property
+        # because of the can_set_thumbnail method
         resource_manager_registry.get_for_instance(resource).set_thumbnail(None, instance=resource)
 
         resource = self.create_link(resource, params, alternate)