add twitter and open graph cards

server/server.js

@@ -38,6 +38,16 @@ function prodLangs() {
 
 const availableLanguages = conf.l10n_dev ? allLangs() : prodLangs();
 
+const envURL = (env) => {
+  switch (env) {
+    case 'test':
+      return 'https://send.stage.mozaws.net';
+    case 'development':
+      return 'https://testpilot.dev.mozaws.net';
+  }
+  return 'https://send.firefox.com';
+}
+
 if (conf.env === 'development') {
   const webpack = require('webpack');
   const webpackDevMiddleware = require('webpack-dev-middleware');
@@ -58,7 +68,10 @@ app.engine(
     partialsDir: 'views/partials/',
     helpers: {
       availableLanguages,
-      l10nDev: conf.l10n_dev
+      l10nDev: conf.l10n_dev,
+      envURL: envURL(conf.env),
+      title: 'Firefox Send',
+      description: 'Encrypt and send files with a link that automatically expires to ensure your important documents don’t stay online forever.'
     }
   })
 );