ensure file response bodies are properly closed

Middlewares like Clogger may wrap Rack::File responses
with another body that responds to to_path and still
rely on #close to trigger an action (writing out the log
file).

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/rainbows/event_machine.rb b/lib/rainbows/event_machine.rb
index 4faa7a6..696f5a0 100644
--- a/lib/rainbows/event_machine.rb
+++ b/lib/rainbows/event_machine.rb
@@ -121,7 +121,10 @@ module Rainbows
           if st.file?
             write(response_header(status, headers)) if headers
             @body = stream = stream_file_data(body.to_path)
-            stream.callback { quit } unless alive
+            stream.callback do
+              body.close if body.respond_to?(:close)
+              quit unless alive
+            end
             return
           elsif st.socket? || st.pipe?
             chunk = stream_response_headers(status, headers) if headers