fix: render library v2 assets with whitespace (#35974)

Assets that contain whitespace fail to be rendered when uploaded to library v2

openedx/core/djangoapps/content_libraries/tests/test_static_assets.py

@@ -63,6 +63,13 @@ def test_asset_filenames(self):
         file_name = "a////////b"
         self._set_library_block_asset(block_id, file_name, SVG_DATA, expect_response=400)
 
+        # Names with spaces are allowed but replaced with underscores
+        file_name_with_space = "o w o.svg"
+        self._set_library_block_asset(block_id, file_name_with_space, SVG_DATA)
+        file_name = "o_w_o.svg"
+        assert self._get_library_block_asset(block_id, file_name)['path'] == file_name
+        assert self._get_library_block_asset(block_id, file_name)['size'] == file_size
+
     def test_video_transcripts(self):
         """
         Test that video blocks can read transcript files out of learning core.

openedx/core/djangoapps/content_libraries/views.py

@@ -799,6 +799,7 @@ def put(self, request, usage_key_str, file_path):
         """
         Replace a static asset file belonging to this block.
         """
+        file_path = file_path.replace(" ", "_")  # Messes up url/name correspondence due to URL encoding.
         usage_key = LibraryUsageLocatorV2.from_string(usage_key_str)
         api.require_permission_for_library_key(
             usage_key.lib_key, request.user, permissions.CAN_EDIT_THIS_CONTENT_LIBRARY,

openedx/core/djangoapps/xblock/runtime/learning_core_runtime.py

@@ -6,6 +6,7 @@
 import logging
 from collections import defaultdict
 from datetime import datetime, timezone
+from urllib.parse import unquote
 
 from django.core.exceptions import ObjectDoesNotExist, ValidationError
 from django.db.transaction import atomic
@@ -446,9 +447,20 @@ def _lookup_asset_url(self, block: XBlock, asset_path: str) -> str | None:
                 .get(key=f"static/{asset_path}")
             )
         except ObjectDoesNotExist:
-            # This means we see a path that _looks_ like it should be a static
-            # asset for this Component, but that static asset doesn't really
-            # exist.
-            return None
+            try:
+                # Retry with unquoted path. We don't always unquote because it would not
+                # be backwards-compatible, but we need to try both.
+                asset_path = unquote(asset_path)
+                content = (
+                    component_version
+                    .componentversioncontent_set
+                    .filter(content__has_file=True)
+                    .get(key=f"static/{asset_path}")
+                )
+            except ObjectDoesNotExist:
+                # This means we see a path that _looks_ like it should be a static
+                # asset for this Component, but that static asset doesn't really
+                # exist.
+                return None
 
         return self._absolute_url_for_asset(component_version, asset_path)