golos-lib-js/lib/auth/multiSession/MultiSessionTempData.js

Golos-js the JavaScript library with API for GOLOS blockchain

"use strict";

var _ecc = require("../ecc");
class MultiSessionTempData {
  constructor(_ref) {
    let {
      key,
      accounts
    } = _ref;
    this.key = key;
    this.accounts = accounts;
  }
  getVal(account, field) {
    let defaultVal = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : '';
    if (this.accounts[account]) return this.accounts[account][field] || defaultVal;
    return defaultVal;
  }
  setVal(account, field, val) {
    this.accounts[account] = this.accounts[account] || {};
    this.accounts[account][field] = val;
    this.accounts[account]._created = Date.now();
    return this;
  }
  addKey(account, authType, val) {
    if (val && val.toWif) val = val.toWif();
    try {
      _ecc.PrivateKey.fromWif(val);
    } catch (e) {
      val = _ecc.PrivateKey.fromSeed(account + authType + val).toString();
    }
    return this.setVal(account, authType, val);
  }
  addMultiAuth(account) {
    return this.setVal(account, 'multiauth', true);
  }
  clearExpired() {
    let expirationMsec = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 3600000;
    let nowMsec = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : undefined;
    let onClear = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : undefined;
    nowMsec = nowMsec || Date.now();
    const cleared = (acc, deltaMsec) => {
      let defaultLog = true;
      if (onClear) {
        const info = {
          acc,
          deltaMsec
        };
        const {
          log
        } = onClear(info);
        if (log) {
          log(info);
          defaultLog = false;
        }
      }
      if (defaultLog) console.log('MultiSessionTempData cleared', deltaMsec);
    };
    for (let [acc, data] of Object.entries(this.accounts)) {
      if (data._created) {
        const deltaMsec = nowMsec - data._created;
        if (deltaMsec >= expirationMsec) {
          delete this.accounts[acc];
          cleared(acc, deltaMsec);
        }
      }
    }
    return this;
  }
  logout(account) {
    delete this.accounts[account];
    return this;
  }
  clear() {
    this.accounts = {};
    return this;
  }
  save() {
    const json = JSON.stringify({
      accounts: this.accounts
    });
    const buf = new Buffer(json).toString('hex');
    sessionStorage.setItem(this.key, buf);
    return this;
  }
}
module.exports = MultiSessionTempData;