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