From 4f533147b194a51fbc5a3ddc5f309b0304dc13de Mon Sep 17 00:00:00 2001
From: Shane Kilkelly <shane@kilkelly.me>
Date: Tue, 17 May 2016 16:59:47 +0100
Subject: [PATCH] enable range requests on files via `?range=m-n` query string.

---
 .../app/coffee/Features/FileStore/FileStoreHandler.coffee    | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/services/web/app/coffee/Features/FileStore/FileStoreHandler.coffee b/services/web/app/coffee/Features/FileStore/FileStoreHandler.coffee
index eaf9c87554..1512b53e7e 100644
--- a/services/web/app/coffee/Features/FileStore/FileStoreHandler.coffee
+++ b/services/web/app/coffee/Features/FileStore/FileStoreHandler.coffee
@@ -42,6 +42,11 @@ module.exports = FileStoreHandler =
 			method : "get"
 			uri: "#{@_buildUrl(project_id, file_id)}#{queryString}"
 			timeout:fiveMinsInMs
+			headers: {}
+		if query? and query['range']?
+			rangeText = query['range']
+			if rangeText && rangeText.match? && rangeText.match(/\d+-\d+/)
+				opts.headers['range'] = "bytes=#{query['range']}"
 		readStream = request(opts)
 		readStream.on "error", (err) ->
 			logger.err {err, project_id, file_id, query}, "error in file stream"