feat(extras): Add AVIF support for image attachments

Extends allowed image file formats to include AVIF for better modern
format support. Updates form widgets to explicitly support AVIF in
Firefox with the `accept` attribute.

Fixes #21039

netbox/extras/forms/model_forms.py

@@ -22,7 +22,7 @@ from utilities.forms.fields import (
     DynamicModelMultipleChoiceField, JSONField, SlugField,
 )
 from utilities.forms.rendering import FieldSet, ObjectAttribute
-from utilities.forms.widgets import ChoicesWidget, HTMXSelect
+from utilities.forms.widgets import ChoicesWidget, ClearableFileInput, HTMXSelect
 from utilities.tables import get_table_for_model
 from virtualization.models import Cluster, ClusterGroup, ClusterType
 
@@ -784,6 +784,10 @@ class ImageAttachmentForm(forms.ModelForm):
         fields = [
             'image', 'name', 'description',
         ]
+        # Explicitly set 'image/avif' to support AVIF selection in Firefox
+        widgets = {
+            'image': ClearableFileInput(attrs={'accept': 'image/*,image/avif'}),
+        }
         help_texts = {
             'name': _("If no name is specified, the file name will be used.")
         }

netbox/extras/utils.py

@@ -78,7 +78,7 @@ def image_upload(instance, filename):
     """
     upload_dir = 'image-attachments'
     default_filename = 'unnamed'
-    allowed_img_extensions = ('bmp', 'gif', 'jpeg', 'jpg', 'png', 'webp')
+    allowed_img_extensions = ('avif', 'bmp', 'gif', 'jpeg', 'jpg', 'png', 'webp')
 
     # Normalize Windows paths and create a Path object.
     normalized_filename = str(filename).replace('\\', '/')

netbox/utilities/forms/mixins.py

@@ -188,11 +188,13 @@ class FilterModifierMixin:
             key = f'{model._meta.app_label}.{model._meta.model_name}'
             filterset_class = registry['filtersets'].get(key)
 
+        filterset = filterset_class() if filterset_class else None
+
         for field_name, field in self.fields.items():
             lookups = self._get_lookup_choices(field)
 
-            if filterset_class:
-                lookups = self._verify_lookups_with_filterset(field_name, lookups, filterset_class)
+            if filterset:
+                lookups = self._verify_lookups_with_filterset(field_name, lookups, filterset)
 
                 if len(lookups) > 1:
                     field.widget = FilterModifierWidget(
@@ -211,14 +213,8 @@ class FilterModifierMixin:
 
         return []
 
-    def _verify_lookups_with_filterset(self, field_name, lookups, filterset_class):
-        """Verify which lookups are actually supported by the FilterSet.
-
-        Args:
-            field_name: The name of the form field
-            lookups: List of (lookup_code, lookup_label) tuples to verify
-            filterset_class: The FilterSet class (not instance) to check against
-        """
+    def _verify_lookups_with_filterset(self, field_name, lookups, filterset):
+        """Verify which lookups are actually supported by the FilterSet."""
         verified_lookups = []
 
         for lookup_code, lookup_label in lookups:
@@ -227,7 +223,7 @@ class FilterModifierMixin:
             else:
                 filter_key = f'{field_name}__{lookup_code}' if lookup_code != 'exact' else field_name
 
-            if filter_key in filterset_class.base_filters:
+            if filter_key in filterset.filters:
                 verified_lookups.append((lookup_code, lookup_label))
 
         return verified_lookups