server/api/private/check-invite.js

   1 'use strict';
   2
   3 var Promise = require('bluebird');
   4 var StatusError = require('statuserror');
   5 var isValidEmail = require('email-validator').validate;
   6 var inviteValidation = require('gitter-web-invites/lib/invite-validation');
   7 var invitesService = require('gitter-web-invites/lib/invites-service');
   8 var BackendMuxer = require('gitter-web-backend-muxer');
   9 var avatars = require('gitter-web-avatars');
  10 var restSerializer = require('../../serializers/rest-serializer');
  11
  12 function getAvatar(userToInvite, type, externalId, emailAddress) {
  13   if (userToInvite) {
  14     return avatars.getForUser(userToInvite);
  15   } else {
  16     return inviteValidation.getAvatar(type, externalId, emailAddress);
  17   }
  18 }
  19
  20 function _findEmailAddress(invitingUser, userToInvite, type, externalId, emailAddress) {
  21   if (emailAddress) {
  22     if (!isValidEmail(emailAddress)) {
  23       throw new StatusError(400);
  24     }
  25
  26     return emailAddress;
  27   }
  28
  29   if (userToInvite) {
  30     var backendMuxer = new BackendMuxer(userToInvite);
  31     return backendMuxer.getEmailAddress();
  32   } else {
  33     return invitesService.resolveEmailAddress(invitingUser, type, externalId);
  34   }
  35 }
  36
  37 var findEmailAddress = Promise.method(_findEmailAddress);
  38
  39 function findInvitationInfo(invitingUser, type, externalId, emailAddress) {
  40   var userToInvite;
  41   return invitesService
  42     .findExistingUser(type, externalId)
  43     .then(function(_userToInvite) {
  44       userToInvite = _userToInvite;
  45       return findEmailAddress(invitingUser, userToInvite, type, externalId, emailAddress);
  46     })
  47     .then(function(resolvedEmailAddress) {
  48       if (!resolvedEmailAddress) throw new StatusError(428);
  49
  50       return {
  51         user: userToInvite, // can be null/undefined
  52         displayName: (userToInvite && userToInvite.displayName) || externalId,
  53         emailAddress: resolvedEmailAddress,
  54         avatarUrl: getAvatar(invitingUser, type, externalId, resolvedEmailAddress)
  55       };
  56     });
  57 }
  58
  59 function checkInvite(req, res, next) {
  60   var input = inviteValidation.parseAndValidateInput(req.query);
  61   return findInvitationInfo(req.user, input.type, input.externalId, input.emailAddress)
  62     .then(function(result) {
  63       if (!result.user) {
  64         return {
  65           displayName: result.displayName,
  66           avatarUrl: result.avatarUrl
  67         };
  68       }
  69
  70       var strategy = new restSerializer.UserStrategy();
  71       return restSerializer.serializeObject(result.user, strategy).then(function(serializedUser) {
  72         return {
  73           user: serializedUser,
  74           displayName: result.displayName,
  75           avatarUrl: result.avatarUrl
  76         };
  77       });
  78     })
  79     .then(function(response) {
  80       res.send(response);
  81     })
  82     .catch(next);
  83 }
  84
  85 module.exports = checkInvite;