server/handlers/social-metadata-generator.js

   1 'use strict';
   2
   3 var env = require('gitter-web-env');
   4 var nconf = env.config;
   5 var avatars = require('gitter-web-avatars');
   6 const truncateText = require('gitter-web-shared/truncate-text');
   7
   8 var facebookAppId = nconf.get('facebook:appId');
   9
  10 function getMetadata(options) {
  11   var room = options && options.room;
  12
  13   var title = (room && room.uri) || 'Gitter';
  14   var description = (room && room.topic) || 'Where developers come to talk.';
  15   var imageUrl = (room && room.avatarUrl) || avatars.getDefault();
  16
  17   return {
  18     'og:title': title,
  19     'og:description': description,
  20     'og:type': 'website',
  21     'og:image': imageUrl,
  22     'fb:app_id': facebookAppId,
  23     'twitter:card': 'summary',
  24     'twitter:site': '@gitchat',
  25     'twitter:title': truncateText(title, 70),
  26     'twitter:description': truncateText(description, 200),
  27     'twitter:image': imageUrl
  28   };
  29 }
  30
  31 function getMetadataForChatPermalink(options) {
  32   var room = options && options.room;
  33   var chat = options && options.chat;
  34
  35   if (!chat || !chat.fromUser) return getMetadata(options);
  36
  37   var fromUser = chat.fromUser;
  38
  39   var title = (room && room.uri) || 'Gitter';
  40   var description = '@' + fromUser.username + ': ' + chat.text;
  41   var imageUrl = (room && room.avatarUrl) || avatars.getDefault();
  42
  43   return {
  44     'og:title': title,
  45     'og:description': description,
  46     'og:type': 'website',
  47     'og:image': imageUrl,
  48     'fb:app_id': facebookAppId,
  49     'twitter:card': 'summary',
  50     'twitter:site': '@gitchat',
  51     'twitter:title': truncateText(title, 70),
  52     'twitter:description': truncateText(description, 200),
  53     'twitter:image': imageUrl
  54   };
  55 }
  56
  57 module.exports = {
  58   getMetadata: getMetadata,
  59   getMetadataForChatPermalink: getMetadataForChatPermalink
  60 };