server/routes/users.js

   1 let router = require("express").Router();
   2 const UserModel = require('../models/User');
   3 const sendEmail = require('../utils/mailer');
   4 const genToken = require("../utils/tokenGenerator");
   5 const access = require("../utils/access");
   6 const params = require("../config/parameters");
   7 const sanitizeHtml_pkg = require('sanitize-html');
   8
   9 const allowedTags = [
  10   'h3', 'h4', 'h5', 'h6', 'blockquote', 'p', 'a', 'ul', 'ol', 'li', 'b',
  11   'i', 'strong', 'em', 'strike', 'code', 'hr', 'br', 'div', 'table',
  12   'thead', 'caption', 'tbody', 'tr', 'th', 'td', 'pre'
  13 ];
  14 function sanitizeHtml(text) {
  15   return sanitizeHtml_pkg(text, { allowedTags: allowedTags });
  16 }
  17
  18 router.get("/userbio", access.ajax, (req,res) => {
  19   const uid = req.query["id"];
  20   if (!!(uid.toString().match(/^[0-9]+$/))) {
  21     UserModel.getBio(uid, (err, bio) => {
  22       res.json(bio);
  23     });
  24   }
  25 });
  26
  27 router.put('/userbio', access.logged, access.ajax, (req,res) => {
  28   const bio = sanitizeHtml(req.body.bio);
  29   UserModel.setBio(req.userId, bio);
  30   res.json({});
  31 });
  32
  33 router.post('/register', access.unlogged, access.ajax, (req,res) => {
  34   const name = req.body.name;
  35   const email = req.body.email;
  36   const notify = !!req.body.notify;
  37   if (UserModel.checkNameEmail({ name: name, email: email })) {
  38     UserModel.create(name, email, notify, (err, ret) => {
  39       if (!!err) {
  40         const msg = err.code == "SQLITE_CONSTRAINT"
  41           ? "User name or email already in use"
  42           : "User creation failed. Try again";
  43         res.json({ errmsg: msg });
  44       }
  45       else {
  46         const user = {
  47           id: ret.id,
  48           name: name,
  49           email: email
  50         };
  51         setAndSendLoginToken("Welcome to " + params.siteURL, user);
  52         res.json({});
  53       }
  54     });
  55   }
  56 });
  57
  58 // NOTE: this method is safe because the sessionToken must be guessed
  59 router.get("/whoami", access.ajax, (req,res) => {
  60   const callback = (user) => {
  61     res.json({
  62       name: user.name,
  63       email: user.email,
  64       id: user.id,
  65       notify: user.notify
  66     });
  67   };
  68   const anonymous = {
  69     name: "",
  70     email: "",
  71     id: 0,
  72     notify: false
  73   };
  74   if (!req.cookies.token) callback(anonymous);
  75   else if (req.cookies.token.match(/^[a-z0-9]+$/)) {
  76     UserModel.getOne(
  77       "sessionToken", req.cookies.token, "name, email, id, notify",
  78       (err, user) => callback(user || anonymous)
  79     );
  80   }
  81 });
  82
  83 // NOTE: this method is safe because only IDs and names are returned
  84 router.get("/users", access.ajax, (req,res) => {
  85   const ids = req.query["ids"];
  86   // NOTE: slightly too permissive RegExp
  87   if (!!ids && !!ids.match(/^([0-9]+,?)+$/)) {
  88     UserModel.getByIds(ids, (err, users) => {
  89       res.json({ users: users });
  90     });
  91   }
  92 });
  93
  94 router.put('/update', access.logged, access.ajax, (req,res) => {
  95   const name = req.body.name;
  96   const email = req.body.email;
  97   if (UserModel.checkNameEmail({ name: name, email: email })) {
  98     const user = {
  99       id: req.userId,
 100       name: name,
 101       email: email,
 102       notify: !!req.body.notify,
 103     };
 104     UserModel.updateSettings(user);
 105     res.json({});
 106   }
 107 });
 108
 109 // Authentication-related methods:
 110
 111 // to: object user (to who we send an email)
 112 function setAndSendLoginToken(subject, to) {
 113   // Set login token and send welcome(back) email with auth link
 114   const token = genToken(params.token.length);
 115   UserModel.setLoginToken(token, to.id);
 116   const body =
 117     "Hello " + to.name + " !" + `
 118 ` +
 119     "Access your account here: " +
 120     params.siteURL + "/#/authenticate/" + token + `
 121 ` +
 122     "Token will expire in " + params.token.expire/(1000*60) + " minutes."
 123   sendEmail(params.mail.noreply, to.email, subject, body);
 124 }
 125
 126 router.get('/sendtoken', access.unlogged, access.ajax, (req,res) => {
 127   const nameOrEmail = decodeURIComponent(req.query.nameOrEmail);
 128   const type = (nameOrEmail.indexOf('@') >= 0 ? "email" : "name");
 129   if (UserModel.checkNameEmail({ [type]: nameOrEmail })) {
 130     UserModel.getOne(type, nameOrEmail, "id, name, email", (err, user) => {
 131       access.checkRequest(res, err, user, "Unknown user", () => {
 132         setAndSendLoginToken("Token for " + params.siteURL, user);
 133         res.json({});
 134       });
 135     });
 136   }
 137 });
 138
 139 router.get('/authenticate', access.unlogged, access.ajax, (req,res) => {
 140   if (!req.query.token.match(/^[a-z0-9]+$/))
 141     return res.json({ errmsg: "Bad token" });
 142   UserModel.getOne(
 143     "loginToken", req.query.token, "id, name, email, notify",
 144     (err,user) => {
 145       access.checkRequest(res, err, user, "Invalid token", () => {
 146         // If token older than params.tokenExpire, do nothing
 147         if (Date.now() > user.loginTime + params.token.expire)
 148           res.json({ errmsg: "Token expired" });
 149         else {
 150           // Generate session token (if not exists) + destroy login token
 151           UserModel.trySetSessionToken(user.id, (token) => {
 152             res.cookie("token", token, {
 153               httpOnly: true,
 154               secure: !!params.siteURL.match(/^https/),
 155               maxAge: params.cookieExpire,
 156             });
 157             res.json(user);
 158           });
 159         }
 160       });
 161     }
 162   );
 163 });
 164
 165 router.get('/logout', access.logged, access.ajax, (req,res) => {
 166   res.clearCookie("token");
 167   res.json({});
 168 });
 169
 170 module.exports = router;