express-keenio/lib/parse/identify.js

Express middleware for creating events from request-responses.

"use strict";

var helpers = require('../core/helpers');

var IdentifyModule = (function (options, eventEmitter) {
  this._ee = helpers.setDefaultEvents(eventEmitter, []);

  var handlers = options.handlers,
      overrideIdentify = !!(handlers && handlers.generateIdentity);

  this.identify = function (req) {
    return this._identify(req);
  };

  this._fallbackIdentify = function (req) {
    var identity = {};
    if (req.session) {
      identity.session = helpers.extend({}, req.session);
      delete identity.session.cookie;
      identity.session.id = req.session.id;
    }
    if (req.get('User-Agent')) {
      identity.userAgent = req.get('User-Agent');
    }    
    if (req.user) {
      identity.user = req.user;
    }
    if (req.ip) {
      // X-Forwarded-For will only be used if app.enable('trust proxy') was used earlier.
      identity.ipAddress = req.ip;
    }

    return identity;
  };

  // The internal method can be overridden in the options.handlers key-value object.
  this._identify = overrideIdentify ? handlers.generateIdentity
                                    : this._fallbackIdentify;
  
  return this;

}).bind({});

exports = module.exports = IdentifyModule;