From 55167724b11414ba22293b1aed8c548e24b6daa9 Mon Sep 17 00:00:00 2001
From: Omar Roth <omarroth@hotmail.com>
Date: Tue, 24 Jul 2018 17:55:58 -0500
Subject: [PATCH] Add fix for unsupported authentication protocols

---
 src/invidious.cr | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/invidious.cr b/src/invidious.cr
index 073b444e..72259f87 100644
--- a/src/invidious.cr
+++ b/src/invidious.cr
@@ -1123,7 +1123,8 @@ post "/login" do |env|
       end
 
       if challenge_results[0][-1][0].as_a?
-        tfa = challenge_results[0][-1][0][0]
+        # Prefer Authenticator app and SMS over unsupported protocols
+        tfa = challenge_results[0][-1][0].as_a.select { |auth_type| auth_type[8] == 6 || auth_type[8] == 9 }[0]
 
         if tfa[2] == "TWO_STEP_VERIFICATION"
           if tfa[5] == "QUOTA_EXCEEDED"