server/handlers/uri-context/uri-context-resolver-middleware.js

   1 'use strict';
   2
   3 var roomContextService = require('gitter-web-rooms/lib/room-context-service');
   4 var debug = require('debug')('gitter:app:uri-context-resolver-middleware');
   5
   6 function normaliseUrl(params) {
   7   if (params.roomPart3) {
   8     return params.roomPart1 + '/' + params.roomPart2 + '/' + params.roomPart3;
   9   }
  10
  11   if (params.roomPart2) {
  12     return params.roomPart1 + '/' + params.roomPart2;
  13   }
  14
  15   return params.roomPart1;
  16 }
  17
  18 function uriContextResolverMiddleware(req, res, next) {
  19   var uri = normaliseUrl(req.params);
  20   debug('Looking up normalised uri %s', uri);
  21
  22   return roomContextService
  23     .findContextForUri(req.user, uri)
  24     .then(function(uriContext) {
  25       if (uriContext.ownUrl) {
  26         res.relativeRedirect('/home/explore');
  27         return null;
  28       }
  29
  30       req.troupe = uriContext.troupe;
  31       req.group = uriContext.group;
  32       req.uriContext = uriContext;
  33
  34       next();
  35       return null;
  36     })
  37     .catch(next);
  38 }
  39
  40 module.exports = uriContextResolverMiddleware;