From d676bbc3498c007017753bc978448bf2ddd5dc29 Mon Sep 17 00:00:00 2001
From: Sam <sam.saffron@gmail.com>
Date: Thu, 7 May 2015 11:06:42 +1000
Subject: [PATCH] handle invalid param gracefully
---
app/models/incoming_link.rb | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/app/models/incoming_link.rb b/app/models/incoming_link.rb
index 9064b0d0d0b..fd3e9e8e8d9 100644
--- a/app/models/incoming_link.rb
+++ b/app/models/incoming_link.rb
@@ -14,7 +14,9 @@ class IncomingLink < ActiveRecord::Base
user_id, host, referer = nil
current_user = opts[:current_user]
- if username = opts[:username]
+ username = opts[:username]
+ username = nil unless String === username
+ if username
u = User.select(:id).find_by(username_lower: username.downcase)
user_id = u.id if u
end