server/web/context-generator-request.js

   1 'use strict';
   2
   3 var Promise = require('bluebird');
   4 var presenceService = require('gitter-web-presence');
   5 var isNative = require('./is-native');
   6
   7 /**
   8  * Figures out whether to use desktop notifications for this user
   9  */
  10 var determineDesktopNotifications = Promise.method(function(user, req) {
  11   if (!user) return true;
  12
  13   var agent = req.getParsedUserAgent();
  14   var os = agent.os.family;
  15   var clientType;
  16
  17   if (os === 'Mac OS X') {
  18     clientType = 'osx';
  19   } else if (os.indexOf('Windows') === 0) {
  20     clientType = 'win';
  21   } else if (os.indexOf('Linux') === 0) {
  22     clientType = 'linux';
  23   }
  24
  25   if (clientType) {
  26     return presenceService
  27       .isUserConnectedWithClientType(user.id, clientType)
  28       .then(function(result) {
  29         return !result;
  30       });
  31   }
  32
  33   return true;
  34 });
  35
  36 function contextFromRequest(req) {
  37   var user = req.user;
  38   var events = req.session && req.session.events;
  39
  40   // Pass the feature toggles through to the client
  41   var features;
  42   if (req.fflip && req.fflip.features) {
  43     features = Object.keys(req.fflip.features).filter(function(featureKey) {
  44       return req.fflip.features[featureKey];
  45     });
  46   }
  47
  48   if (events) {
  49     req.session.events = [];
  50   }
  51
  52   var contextHash = {
  53     events: events,
  54     accessToken: req.accessToken,
  55     isNativeDesktopApp: isNative(req),
  56     locale: req.i18n.locales[req.i18n.locale],
  57     features: features
  58   };
  59
  60   if (!user) {
  61     return contextHash;
  62   }
  63
  64   return determineDesktopNotifications(user, req).then(function(desktopNotifications) {
  65     contextHash.desktopNotifications = desktopNotifications;
  66     return contextHash;
  67   });
  68 }
  69
  70 module.exports = Promise.method(contextFromRequest);