deep-security/lib.es6/Voter/RoleVoter.js

DEEP Security Library

/**
 * Created by CCristi on 7/15/16.
 */

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.RoleVoter = undefined;

var _VoterInterface = require('./VoterInterface');

var _BaseVoter = require('./BaseVoter');

class RoleVoter extends _VoterInterface.VoterInterface {
  /**
   * @param {Object} role
   */
  constructor(role) {
    super();

    this._role = role;
  }

  /**
   * @param {String} context
   * @returns {Boolean}
   */
  vote(context) {
    for (let voter of this._negativeVoters) {
      if (voter.vote(context)) {
        return false;
      }
    }

    for (let voter of this._positiveVoters) {
      if (voter.vote(context)) {
        return true;
      }
    }

    return false;
  }

  /**
   * @returns {String}
   */
  get _positiveVoters() {
    let statements = this._role.Policy.Statement;

    return statements.filter(s => s.Effect === _VoterInterface.VoterInterface.ALLOW).reduce((voters, statement) => {
      return voters.concat(statement.Action.map(_BaseVoter.BaseVoter.createFromAction));
    }, []);
  }

  /**
   * @returns {String}
   */
  get _negativeVoters() {
    let statements = this._role.Policy.Statement;

    return statements.filter(s => s.Effect === _VoterInterface.VoterInterface.DENY).reduce((voters, statement) => {
      return voters.concat(statement.Action.map(_BaseVoter.BaseVoter.createFromAction));
    }, []);
  }

  /**
   * @returns {Object}
   */
  get role() {
    return this._role;
  }
}
exports.RoleVoter = RoleVoter;