From 18db0ceae9b43b3c953053040ba8b7bab8a71a88 Mon Sep 17 00:00:00 2001
From: Frederic Merizen <frederic.merizen@gmail.com>
Date: Thu, 15 Feb 2018 17:41:44 +0100
Subject: [PATCH] CleverCloud Cellar Compatible range query

---
 config/initializers/monkey_patches.rb | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/config/initializers/monkey_patches.rb b/config/initializers/monkey_patches.rb
index 5c82ece93..ffe0a92ba 100644
--- a/config/initializers/monkey_patches.rb
+++ b/config/initializers/monkey_patches.rb
@@ -1,9 +1,12 @@
+# Monkey patch ActiveStorage to make Range query compatible with CleverCloud Cellar
+#
+# FIXME : remove when better fix is available
 ActiveStorage::Identification.class_eval do
-  def apply
-    # Monkey patch ActiveStorage to trust the user-submitted content type rather than determining
-    # it from the file contents, because Cellar does not seem to support the Range header
-    #
-    # FIXME : remove when better fix is available
-    blob.update!(content_type: declared_content_type, identified: true) unless blob.identified?
+  private
+
+  def identifiable_chunk
+    Net::HTTP.start(uri.host, uri.port, use_ssl: uri.scheme == "https") do |client|
+      client.get(uri, "Range" => "bytes=0-4096").body
+    end
   end
 end