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