[FIX] ensure the email address part is the only value captured when a…

…llowing the display of external resources from a particular sender

modules/contacts/site.js

@@ -43,9 +43,8 @@ var add_contact_from_popup = function(event) {
 
 
     if (contact) {
-        var emailRegex = /\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}\b/g;
-        var email = contact.match(emailRegex)[0];
-        var name = contact.replace(emailRegex, "");
+        var email = contact.match(EMAIL_REGEX)[0];
+        var name = contact.replace(EMAIL_REGEX, "");
 
         var saveContactContent = `<div><table>
                                             <tr><td><strong>${hm_trans('Name')} :</strong></td><td>${name}</td></tr>

modules/core/site.js

@@ -1,5 +1,13 @@
 'use strict';
 
+// Constants. To be used anywhere in the app via the window object.
+const globalVars = {
+    EMAIL_REGEX: /\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}\b/g,
+}
+Object.keys(globalVars).forEach(key => {
+    window[key] = globalVars[key];
+});
+
 /* extend cash.js with some useful bits */
 $.inArray = function(item, list) {
     for (var i in list) {
@@ -2644,7 +2652,7 @@ const handleExternalResources = (inline) => {
     const messageContainer = document.querySelector('.msg_text_inner');
     messageContainer.insertAdjacentHTML('afterbegin', '<div class="external_notices"></div>');
 
-    const sender = document.querySelector('#contact_info').textContent.trim().replace(/\s/g, '_') + 'external_resources_allowed';
+    const sender = document.querySelector('#contact_info').textContent.match(EMAIL_REGEX)[0] + '_external_resources_allowed';
     const elements = messageContainer.querySelectorAll('[data-src]');
     const blockedResources = [];
     elements.forEach(function (element) {