#42 add support for is_authorized hook

cellxgene_gateway/items/file/fileitem_source.py

@@ -121,6 +121,9 @@ class FileItemSource(ItemSource):
         if self.is_h5ad_file(full_path):
             return self.shallowitem_from_descriptor(descriptor)
 
+    def is_authorized(self, descriptor):
+        return True
+
     def lookup(self, indescriptor: str) -> LookupResult:
         descriptor = indescriptor.strip("/")
         if descriptor.endswith(self.annotation_file_suffix):

cellxgene_gateway/items/item_source.py

@@ -40,6 +40,10 @@ class ItemSource(ABC):
     def update(self, item: Item) -> None:
         raise Exception('"update" unimplemented')
 
+    @abstractmethod
+    def is_authorized(self, descriptor: str) -> bool:
+        raise Exception('"is_authorized" unimplemented')
+
     @abstractmethod
     def lookup(self, descriptor: str) -> LookupResult:
         raise Exception('"lookup" unimplemented')

cellxgene_gateway/items/s3/s3item_source.py

@@ -113,6 +113,9 @@ class S3ItemSource(ItemSource):
     def update(self, item: S3Item) -> None:
         pass
 
+    def is_authorized(self, descriptor):
+        return True
+
     def lookup_item(self, descriptor):
         full_path = self.url(descriptor)
         if self.is_h5ad_url(full_path):