From c2605e0bf2db061ad56b70823a33724e2ec606d9 Mon Sep 17 00:00:00 2001
From: Quentin Machu <me@quentin-machu.fr>
Date: Fri, 12 Feb 2016 16:25:37 -0500
Subject: [PATCH] worker: verify download status code

---
 worker/detectors/data.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/worker/detectors/data.go b/worker/detectors/data.go
index 011d067c..144f8125 100644
--- a/worker/detectors/data.go
+++ b/worker/detectors/data.go
@@ -72,6 +72,11 @@ func DetectData(path string, format string, toExtract []string, maxFileSize int6
 	if strings.HasPrefix(path, "http://") || strings.HasPrefix(path, "https://") {
 		r, err := http.Get(path)
 		if err != nil {
+			log.Warningf("could not download layer: %s", err)
+			return nil, cerrors.ErrCouldNotDownload
+		}
+		if math.Floor(float64(r.StatusCode/100)) != 2 {
+			log.Warningf("could not download layer: got status code %d, expected 2XX", r.StatusCode)
 			return nil, cerrors.ErrCouldNotDownload
 		}
 		if err != nil {