socketcluster-server/action.js

Server module for SocketCluster

const scErrors = require('sc-errors');
const InvalidActionError = scErrors.InvalidActionError;

function AGAction() {
  this.outcome = null;
  this.promise = new Promise((resolve, reject) => {
    this._resolve = resolve;
    this._reject = reject;
  });

  this.allow = (packet) => {
    if (this.outcome) {
      throw new InvalidActionError(`AGAction ${this.type} has already been ${this.outcome}; cannot allow`);
    }
    this.outcome = 'allowed';
    this._resolve(packet);
  };

  this.block = (error) => {
    if (this.outcome) {
      throw new InvalidActionError(`AGAction ${this.type} has already been ${this.outcome}; cannot block`);
    }
    this.outcome = 'blocked';
    this._reject(error);
  };
}

AGAction.prototype.HANDSHAKE_WS = AGAction.HANDSHAKE_WS = 'handshakeWS';
AGAction.prototype.HANDSHAKE_SC = AGAction.HANDSHAKE_SC = 'handshakeSC';

AGAction.prototype.MESSAGE = AGAction.MESSAGE = 'message';

AGAction.prototype.TRANSMIT = AGAction.TRANSMIT = 'transmit';
AGAction.prototype.INVOKE = AGAction.INVOKE = 'invoke';
AGAction.prototype.SUBSCRIBE = AGAction.SUBSCRIBE = 'subscribe';
AGAction.prototype.PUBLISH_IN = AGAction.PUBLISH_IN = 'publishIn';
AGAction.prototype.PUBLISH_OUT = AGAction.PUBLISH_OUT = 'publishOut';
AGAction.prototype.AUTHENTICATE = AGAction.AUTHENTICATE = 'authenticate';

module.exports = AGAction;