server/handlers/uri-context/redirect-error-middleware.js

   1 'use strict';
   2
   3 var normalizeRedirect = require('./normalise-redirect');
   4 var StatusError = require('statuserror');
   5
   6 /**
   7  * Handles various 404 and 301 error codes and deals with the
   8  * in a reasonable manner
   9  */
  10 function redirectErrorMiddleware(err, req, res, next) {
  11   switch (err.status) {
  12     case 301:
  13       // TODO: check this works for userhome....
  14       if (err.path) {
  15         res.redirect(normalizeRedirect(err.path, req));
  16         // Terminate processing
  17         return;
  18       }
  19
  20       return next(new StatusError(500, 'Invalid redirect'));
  21
  22     case 404:
  23       if (err.githubType === 'ORG' && err.uri) {
  24         var url = '/orgs/' + err.uri + '/rooms';
  25         //test if we are trying to load the org page in the chat frame.
  26         //fixes: https://github.com/troupe/gitter-webapp/issues/628
  27         if (/~chat$/.test(req.route.path)) {
  28           url = url += '/~iframe';
  29         }
  30         res.redirect(url);
  31
  32         // Terminate processing
  33         return;
  34       }
  35   }
  36
  37   return next(err);
  38 }
  39
  40 module.exports = redirectErrorMiddleware;