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 + "!" + `
  55 ` +
  56       "Access your account here: " +
  57       params.siteURL + "/#/authenticate/" + token + `
  58 ` +
  59       "Token will expire in " + params.token.expire/(1000*60) + " minutes."
  60     sendEmail(params.mail.noreply, to.email, subject, body, err => {
  61       res.json(err || {});
  62     });
  63   });
  64 }
  65
  66 router.post('/register', access.unlogged, access.ajax, (req,res) => {
  67   const name = req.body.name;
  68   const email = req.body.email;
  69   const notify = !!req.body.notify;
  70   const error = UserModel.checkNameEmail({name: name, email: email});
  71   if (!!error)
  72     return res.json({errmsg: error});
  73   UserModel.create(name, email, notify, (err,uid) => {
  74     if (!!err)
  75       return res.json({errmsg: err.toString()});
  76     const user = {
  77       id: uid["rowid"],
  78       name: name,
  79       email: email,
  80     };
  81     setAndSendLoginToken("Welcome to " + params.siteURL, user, res);
  82   });
  83 });
  84
  85 router.get('/sendtoken', access.unlogged, access.ajax, (req,res) => {
  86   const nameOrEmail = decodeURIComponent(req.query.nameOrEmail);
  87   const type = (nameOrEmail.indexOf('@') >= 0 ? "email" : "name");
  88   const error = UserModel.checkNameEmail({[type]: nameOrEmail});
  89   if (!!error)
  90     return res.json({errmsg: error});
  91   UserModel.getOne(type, nameOrEmail, (err,user) => {
  92     access.checkRequest(res, err, user, "Unknown user", () => {
  93       setAndSendLoginToken("Token for " + params.siteURL, user, res);
  94     });
  95   });
  96 });
  97
  98 router.get('/authenticate', access.unlogged, access.ajax, (req,res) => {
  99   if (!req.query.token.match(/^[a-z0-9]+$/))
 100     return res.json({errmsg: "Bad token"});
 101   UserModel.getOne("loginToken", req.query.token, (err,user) => {
 102     access.checkRequest(res, err, user, "Invalid token", () => {
 103       // If token older than params.tokenExpire, do nothing
 104       if (Date.now() > user.loginTime + params.token.expire)
 105         return res.json({errmsg: "Token expired"});
 106       // Generate session token (if not exists) + destroy login token
 107       UserModel.trySetSessionToken(user.id, (err,token) => {
 108         if (!!err)
 109           return res.json({errmsg: err.toString()});
 110         // Set cookie
 111         res.cookie("token", token, {
 112           httpOnly: true,
 113           secure: !!params.siteURL.match(/^https/),
 114           maxAge: params.cookieExpire,
 115         });
 116         res.json({
 117           id: user.id,
 118           name: user.name,
 119           email: user.email,
 120           notify: user.notify,
 121         });
 122       });
 123     });
 124   });
 125 });
 126
 127 router.put('/update', access.logged, access.ajax, (req,res) => {
 128   const name = req.body.name;
 129   const email = req.body.email;
 130   const error = UserModel.checkNameEmail({name: name, email: email});
 131   if (!!error)
 132     return res.json({errmsg: error});
 133   const user = {
 134     id: req.userId,
 135     name: name,
 136     email: email,
 137     notify: !!req.body.notify,
 138   };
 139   UserModel.updateSettings(user, err => {
 140     res.json(err ? {errmsg: err.toString()} : {});
 141   });
 142 });
 143
 144 router.get('/logout', access.logged, access.ajax, (req,res) => {
 145   res.clearCookie("token");
 146   res.json({});
 147 });
 148
 149 module.exports = router;