From 5e7d8841afb66c6c4ee9ba4110d8dd61836f95c4 Mon Sep 17 00:00:00 2001
From: James Wykeham-Martin <jwykeham@gmail.com>
Date: Fri, 2 Feb 2018 09:58:09 +0000
Subject: [PATCH] Added loopback detection using current last rather than
 contains

---
 hammond-downloader/src/downloader.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hammond-downloader/src/downloader.rs b/hammond-downloader/src/downloader.rs
index cf614fc..2176922 100644
--- a/hammond-downloader/src/downloader.rs
+++ b/hammond-downloader/src/downloader.rs
@@ -43,8 +43,10 @@ fn download_into(
     // it has a loop back before giving correct url
     let policy = RedirectPolicy::custom(|attempt| {
         info!("Redirect Attempt URL: {:?}", attempt.url());
-        if attempt.previous().len() > 10 {
+        if attempt.previous().len() > 5 {
             attempt.too_many_redirects()
+        } else if attempt.url() == attempt.previous().last().unwrap() {
+            attempt.loop_detected()
         } else {
             attempt.follow()
         }