1 files changed, 30 insertions, 0 deletions
diff --git a/app/models/blob_viewer/server_side.rb b/app/models/blob_viewer/server_side.rb
new file mode 100644
index 00000000000..87884dcd6bf
--- /dev/null
+++ b/app/models/blob_viewer/server_side.rb
@@ -0,0 +1,30 @@
+module BlobViewer
+  module ServerSide
+    extend ActiveSupport::Concern
+
+    included do
+      self.load_async = true
+      self.overridable_max_size = 2.megabytes
+      self.max_size = 5.megabytes
+    end
+
+    def prepare!
+      if blob.project
+        blob.load_all_data!(blob.project.repository)
+      end
+    end
+
+    def render_error
+      if blob.stored_externally?
+        # Files that are not stored in the repository, like LFS files and
+        # build artifacts, can only be rendered using a client-side viewer,
+        # since we do not want to read large amounts of data into memory on the
+        # server side. Client-side viewers use JS and can fetch the file from
+        # `blob_raw_url` using AJAX.
+        return :server_side_but_stored_externally
+      end
+
+      super
+    end
+  end
+end