smart-store.js

'use strict'

var session = require('../../')
var util = require('util')

module.exports = SmartStore

function SmartStore () {
  session.Store.call(this)
  this.sessions = Object.create(null)
}

util.inherits(SmartStore, session.Store)

SmartStore.prototype.destroy = function destroy (sid, callback) {
  delete this.sessions[sid]
  setImmediate(callback, null)
}

SmartStore.prototype.get = function get (sid, callback) {
  var sess = this.sessions[sid]

  if (!sess) {
    return
  }

  // parse
  sess = JSON.parse(sess)

  if (sess.cookie) {
    // expand expires into Date object
    sess.cookie.expires = typeof sess.cookie.expires === 'string'
      ? new Date(sess.cookie.expires)
      : sess.cookie.expires

    // destroy expired session
    if (sess.cookie.expires && sess.cookie.expires <= Date.now()) {
      delete this.sessions[sid]
      sess = null
    }
  }

  setImmediate(callback, null, sess)
}

SmartStore.prototype.set = function set (sid, sess, callback) {
  this.sessions[sid] = JSON.stringify(sess)
  setImmediate(callback, null)
}