utils/access.js

   1 const _ = require("underscore");
   2 const UserModel = require("../models/user");
   3
   4 let Access =
   5 {
   6     getUser: function(req, res, callback)
   7     {
   8         if (!res.locals.loggedIn)
   9             return callback({errmsg: "Not logged in!"}, undefined);
  10         UserModel.getBySessionToken(req.cookies.token, function(err, user) {
  11             if (!user)
  12                 return callback({errmsg: "Not logged in!"}, undefined);
  13             return callback(null, user);
  14         });
  15     },
  16
  17     // Before loading sensible content, check + save credentials
  18     logged: function(req, res, next)
  19     {
  20         Access.getUser(req, res, (err,user) => {
  21             if (!!err)
  22                 return res.json(err);
  23             req.user = user;
  24             next();
  25         });
  26     },
  27
  28     // Prevent access to "anonymous pages"
  29     unlogged: function(req, res, next)
  30     {
  31         if (!!req.user)
  32             return res.json({errmsg: "Already logged in!"});
  33         next();
  34     },
  35
  36     // Prevent direct access to AJAX results
  37     ajax: function(req, res, next)
  38     {
  39         if (!req.xhr)
  40             return res.json({errmsg: "Unauthorized access"});
  41         next();
  42     },
  43
  44     // Check for errors before callback (continue page loading). TODO: better name.
  45     checkRequest: function(res, err, out, msg, cb)
  46     {
  47         if (!!err)
  48             return res.json(err);
  49         if (!out || _.isEmpty(out))
  50             return res.json({errmsg: msg});
  51         cb();
  52     },
  53 };
  54
  55 module.exports = Access;