smc-hub/dist/user-remember-me.js

CoCalc: Backend webserver component

// Generated by CoffeeScript 2.5.1
(function() {
  //########################################################################
  // This file is part of CoCalc: Copyright © 2020 Sagemath, Inc.
  // License: AGPLv3 s.t. "Commons Clause" – see LICENSE.md for details
  //########################################################################
  /*
  A cached function from remember_me cookie to account_id.
  Cache expires after 60s, to stop accepting requests from user
  in case they invalidate their cookie.
  */
  var Cache, NOT_SIGNED_IN, auth, remember_me_cache;

  Cache = require('lru-cache');

  auth = require('./auth');

  // Do NOT change this - this exact string is assumed in smc-util/client
  ({NOT_SIGNED_IN} = require("smc-util/consts"));

  remember_me_cache = new Cache({
    max: 5000,
    maxAge: 60000
  });

  exports.get_account_id = function(database, remember_me, cb) {
    var account_id, err, hash, x;
    if (remember_me == null) {
      cb(NOT_SIGNED_IN);
      return;
    }
    account_id = remember_me_cache.get(remember_me);
    if (account_id) {
      cb(void 0, account_id);
      return;
    }
    x = remember_me.split('$');
    try {
      hash = auth.generate_hash(x[0], x[1], x[2], x[3]);
    } catch (error) {
      err = error;
      cb(NOT_SIGNED_IN);
      return;
    }
    return database.get_remember_me({
      hash: hash,
      cb: function(err, signed_in_mesg) {
        if (err) {
          cb(err);
          return;
        }
        remember_me_cache.set(remember_me, signed_in_mesg != null ? signed_in_mesg.account_id : void 0);
        if (signed_in_mesg == null) {
          return cb(NOT_SIGNED_IN);
        } else {
          return cb(void 0, signed_in_mesg.account_id);
        }
      }
    });
  };

}).call(this);

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