From 472358d0307c09e2d20f68cae60ddc46248cad08 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Wojciech=20Wn=C4=99trzak?= <w.wnetrzak@gmail.com>
Date: Wed, 15 Jul 2015 21:04:21 +0200
Subject: Fix displaying mailer previews on non local requests.

When config `action_mailer.show_previews` is set, previews are displayed
regardless of local request check.
---
 railties/lib/rails/mailers_controller.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'railties/lib')

diff --git a/railties/lib/rails/mailers_controller.rb b/railties/lib/rails/mailers_controller.rb
index 78a857e0f1..ed0ea9dd4d 100644
--- a/railties/lib/rails/mailers_controller.rb
+++ b/railties/lib/rails/mailers_controller.rb
@@ -3,7 +3,7 @@ require 'rails/application_controller'
 class Rails::MailersController < Rails::ApplicationController # :nodoc:
   prepend_view_path ActionDispatch::DebugExceptions::RESCUES_TEMPLATE_PATH
 
-  before_action :require_local!
+  before_action :require_local!, unless: :show_previews?
   before_action :find_preview, only: :preview
 
   def index
@@ -41,6 +41,10 @@ class Rails::MailersController < Rails::ApplicationController # :nodoc:
   end
 
   protected
+    def show_previews?
+      ActionMailer::Base.show_previews
+    end
+
     def find_preview
       candidates = []
       params[:path].to_s.scan(%r{/|$}){ candidates << $` }
-- 
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