From 2ae87c8090822f455e041d833a234e29bbbe77a7 Mon Sep 17 00:00:00 2001
From: mark burdett <mfb@eff.org>
Date: Wed, 3 Jun 2020 08:36:02 -0700
Subject: [PATCH] Client-side email validation for congress messages

Refs #829
---
 .../javascripts/application/tools/congress_message.js       | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/app/assets/javascripts/application/tools/congress_message.js b/app/assets/javascripts/application/tools/congress_message.js
index 8d02bcc1d..c1c155291 100644
--- a/app/assets/javascripts/application/tools/congress_message.js
+++ b/app/assets/javascripts/application/tools/congress_message.js
@@ -37,6 +37,12 @@ $(document).on("ready", function() {
   });
 
   $("#congress-message-tool").on("click", "#to-page-3", function(){
+    // Run browser email validation, plus additional check for valid hostname.
+    if (!$('#common_attributes__EMAIL')[0].checkValidity() || !/^[^@\s]+@([-a-z0-9]+\.)+[a-z]{2,}$/i.test($('#common_attributes__EMAIL').val())) {
+      show_error('Please double-check your email address and try again.', $('.rep-info'));
+      $(window).scrollTop($('.rep-info').offset().top);
+      return;
+    }
     $(".rep-info").hide();
     $("#customize-message").show();
     if ($("#action-content").length) {