Refs #5896; Add cahe-related headers for assets

1 files changed, 20 insertions, 0 deletions

diff --git a/config/middlewares/cachesettings.rb b/config/middlewares/cachesettings.rb
new file mode 100644
index 000000000..8a122891f
--- /dev/null
+++ b/config/middlewares/cachesettings.rb
@@ -0,0 +1,20 @@
+class CacheSettings
+  def initialize app, pat
+    @app = app
+    @pat = pat
+  end
+
+  def call env
+    res = @app.call(env)
+    path = env["REQUEST_PATH"]
+    @pat.each do |pattern,data|
+      if path =~ pattern
+        res[1]["Cache-Control"] = data[:cache_control] if data.has_key?(:cache_control)
+        res[1]["Expires"] = (Time.now + data[:expires]).utc.rfc2822 if data.has_key?(:expires)
+        res[1]["X-Custom-Cache-Control"] = "yes" if Rails.env.development?
+        return res
+      end
+    end
+    res
+  end
+end