server/routes/users.js

   1 // AJAX methods to get, create, update or delete a user
   2
   3 let router = require("express").Router();
   4 const UserModel = require('../models/User');
   5 const sendEmail = require('../utils/mailer');
   6 const genToken = require("../utils/tokenGenerator");
   7 const access = require("../utils/access");
   8 const params = require("../config/parameters");
   9
  10 // NOTE: this method is safe because the sessionToken must be guessed
  11 router.get("/whoami", access.ajax, (req,res) => {
  12   const callback = (user) => {
  13     return res.json({
  14       name: user.name,
  15       email: user.email,
  16       id: user.id,
  17       notify: user.notify,
  18     });
  19   };
  20   const anonymous = {name:"", email:"", id:0, notify:false};
  21   if (!req.cookies.token)
  22     return callback(anonymous);
  23   if (!req.cookies.token.match(/^[a-z0-9]+$/))
  24     return res.json({errmsg: "Bad token"});
  25   UserModel.getOne("sessionToken", req.cookies.token, function(err, user) {
  26     if (!!err || !user)
  27       callback(anonymous);
  28     else
  29       callback(user);
  30   });
  31 });
  32
  33 // NOTE: this method is safe because only IDs and names are returned
  34 router.get("/users", access.ajax, (req,res) => {
  35   const ids = req.query["ids"];
  36   if (!!ids && !ids.match(/^([0-9]+,?)+$/)) //NOTE: slightly too permissive
  37     return res.json({errmsg: "Bad IDs array"});
  38   UserModel.getByIds(ids, (err,users) => {
  39     if (!!err)
  40       return res.json({errmsg: err.toString()});
  41     return res.json({users:users});
  42   });
  43 });
  44
  45 // to: object user (to who we send an email)
  46 function setAndSendLoginToken(subject, to, res)
  47 {
  48   // Set login token and send welcome(back) email with auth link
  49   const token = genToken(params.token.length);
  50   UserModel.setLoginToken(token, to.id, err => {
  51     if (!!err)
  52       return res.json({errmsg: err.toString()});
  53     const body =
  54       "Hello " + to.name + "!\\n" +
  55       "Access your account here: " +
  56       params.siteURL + "/#/authenticate/" + token + "\\n" +
  57       "Token will expire in " + params.token.expire/(1000*60) + " minutes."
  58     sendEmail(params.mail.noreply, to.email, subject, body, err => {
  59       res.json(err || {});
  60     });
  61   });
  62 }
  63
  64 router.post('/register', access.unlogged, access.ajax, (req,res) => {
  65   const name = req.body.name;
  66   const email = req.body.email;
  67   const notify = !!req.body.notify;
  68   const error = UserModel.checkNameEmail({name: name, email: email});
  69   if (!!error)
  70     return res.json({errmsg: error});
  71   UserModel.create(name, email, notify, (err,uid) => {
  72     if (!!err)
  73       return res.json({errmsg: err.toString()});
  74     const user = {
  75       id: uid["rowid"],
  76       name: name,
  77       email: email,
  78     };
  79     setAndSendLoginToken("Welcome to " + params.siteURL, user, res);
  80   });
  81 });
  82
  83 router.get('/sendtoken', access.unlogged, access.ajax, (req,res) => {
  84   const nameOrEmail = decodeURIComponent(req.query.nameOrEmail);
  85   const type = (nameOrEmail.indexOf('@') >= 0 ? "email" : "name");
  86   const error = UserModel.checkNameEmail({[type]: nameOrEmail});
  87   if (!!error)
  88     return res.json({errmsg: error});
  89   UserModel.getOne(type, nameOrEmail, (err,user) => {
  90     access.checkRequest(res, err, user, "Unknown user", () => {
  91       setAndSendLoginToken("Token for " + params.siteURL, user, res);
  92     });
  93   });
  94 });
  95
  96 router.get('/authenticate', access.unlogged, access.ajax, (req,res) => {
  97   if (!req.query.token.match(/^[a-z0-9]+$/))
  98     return res.json({errmsg: "Bad token"});
  99   UserModel.getOne("loginToken", req.query.token, (err,user) => {
 100     access.checkRequest(res, err, user, "Invalid token", () => {
 101       // If token older than params.tokenExpire, do nothing
 102       if (Date.now() > user.loginTime + params.token.expire)
 103         return res.json({errmsg: "Token expired"});
 104       // Generate session token (if not exists) + destroy login token
 105       UserModel.trySetSessionToken(user.id, (err,token) => {
 106         if (!!err)
 107           return res.json({errmsg: err.toString()});
 108         // Set cookie
 109         res.cookie("token", token, {
 110           httpOnly: true,
 111           secure: !!params.siteURL.match(/^https/),
 112           maxAge: params.cookieExpire,
 113         });
 114         res.json({
 115           id: user.id,
 116           name: user.name,
 117           email: user.email,
 118           notify: user.notify,
 119         });
 120       });
 121     });
 122   });
 123 });
 124
 125 router.put('/update', access.logged, access.ajax, (req,res) => {
 126   const name = req.body.name;
 127   const email = req.body.email;
 128   const error = UserModel.checkNameEmail({name: name, email: email});
 129   if (!!error)
 130     return res.json({errmsg: error});
 131   const user = {
 132     id: req.userId,
 133     name: name,
 134     email: email,
 135     notify: !!req.body.notify,
 136   };
 137   UserModel.updateSettings(user, err => {
 138     res.json(err ? {errmsg: err.toString()} : {});
 139   });
 140 });
 141
 142 router.get('/logout', access.logged, access.ajax, (req,res) => {
 143   res.clearCookie("token");
 144   res.json({});
 145 });
 146
 147 module.exports = router;