fix: resize oversized image attachments during import

tests/test_file_import.py

@@ -4,6 +4,7 @@ from django.core.files.storage import InMemoryStorage
 from django.db import models
 from PIL import Image
 
+from netbox_export.services import importer as importer_module
 from netbox_export.services.importer import _cleanup_files, _set_files
 
 
@@ -65,3 +66,42 @@ def test_file_import_keeps_derived_dimensions_after_storage_save(monkeypatch):
 
     _cleanup_files(saved_files)
     assert not storage.exists(obj.image.name)
+
+
+def test_oversized_image_is_resized_after_pillow_bomb_error(monkeypatch):
+    monkeypatch.setattr(importer_module, "NETBOX_IMAGE_MAX_PIXELS", 50)
+    monkeypatch.setattr(importer_module, "IMPORTED_IMAGE_TARGET_PIXELS", 40)
+    monkeypatch.setattr(importer_module, "IMPORTED_IMAGE_SOURCE_MAX_PIXELS", 200)
+    monkeypatch.setattr(Image, "MAX_IMAGE_PIXELS", 50)
+    field = ImageAsset._meta.get_field("image")
+    storage = InMemoryStorage()
+    monkeypatch.setattr(field, "storage", storage)
+    obj = ImageAsset()
+    record = image_record()
+    record["id"] = "extras.imageattachment:17"
+    assets = {"assets/extras.imageattachment_17/image/server-room.png": image_bytes(11, 10)}
+    import_warnings = []
+    saved_files = []
+
+    _set_files(
+        obj,
+        record,
+        assets,
+        saved_files,
+        dry_run=False,
+        import_warnings=import_warnings,
+    )
+
+    assert obj.image_width * obj.image_height <= 40
+    with storage.open(obj.image.name, "rb") as stored_file, Image.open(stored_file) as stored_image:
+        assert stored_image.size == (obj.image_width, obj.image_height)
+        assert stored_image.format == "PNG"
+    assert import_warnings == [
+        (
+            f"Bild für extras.imageattachment:17 wurde von 11×10 auf "
+            f"{obj.image_width}×{obj.image_height} Pixel verkleinert."
+        )
+    ]
+    assert Image.MAX_IMAGE_PIXELS == 50
+
+    _cleanup_files(saved_files)