diff --git a/app/controllers/active_storage/disk_controller_decorator.rb b/app/controllers/active_storage/disk_controller_decorator.rb
index 0634a2ec..e49c22f1 100644
--- a/app/controllers/active_storage/disk_controller_decorator.rb
+++ b/app/controllers/active_storage/disk_controller_decorator.rb
@@ -21,11 +21,26 @@ module ActiveStorage
       def update
         if (token = decode_verified_token)
           if acceptable_content?(token)
-            named_disk_service(token[:service_name]).upload token[:key], request.body, checksum: token[:checksum]
-
             blob = ActiveStorage::Blob.find_by_key token[:key]
             site = Site.find_by_name token[:service_name]
 
+            if remote_file?(token)
+              begin
+                url = request.body.read
+                body = Down.download(url, max_size: 111.megabytes)
+                checksum = nil
+              rescue StandardError => e
+                ExceptionNotifier.notify_exception(e, data: { key: token[:key], url: url, site: site.name })
+
+                head :content_too_large
+              end
+            else
+              body = request.body
+              checksum = token[:checksum]
+            end
+
+            named_disk_service(token[:service_name]).upload token[:key], body, checksum: checksum
+
             site.static_files.attach(blob)
           else
             head :unprocessable_entity
@@ -36,6 +51,12 @@ module ActiveStorage
       rescue ActiveStorage::IntegrityError
         head :unprocessable_entity
       end
+
+      private
+
+      def remote_file?(token)
+        token[:content_type] == 'sutty/download-from-url'
+      end
     end
   end
 end