haste-server/node_modules/connect/lib/middleware/session/session.js

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2012-02-06 20:09:01 +01:00
/*!
* Connect - session - Session
* Copyright(c) 2010 Sencha Inc.
* Copyright(c) 2011 TJ Holowaychuk
* MIT Licensed
*/
/**
* Module dependencies.
*/
var utils = require('../../utils')
, Cookie = require('./cookie');
/**
* Create a new `Session` with the given request and `data`.
*
* @param {IncomingRequest} req
* @param {Object} data
* @api private
*/
var Session = module.exports = function Session(req, data) {
Object.defineProperty(this, 'req', { value: req });
Object.defineProperty(this, 'id', { value: req.sessionID });
if ('object' == typeof data) {
utils.merge(this, data);
} else {
this.lastAccess = Date.now();
}
};
/**
* Update `.lastAccess` timestamp,
* and reset `.cookie.maxAge` to prevent
* the cookie from expiring when the
* session is still active.
*
* @return {Session} for chaining
* @api public
*/
Session.prototype.touch = function(){
return this
.resetLastAccess()
.resetMaxAge();
};
/**
* Update `.lastAccess` timestamp.
*
* @return {Session} for chaining
* @api public
*/
Session.prototype.resetLastAccess = function(){
this.lastAccess = Date.now();
return this;
};
/**
* Reset `.maxAge` to `.originalMaxAge`.
*
* @return {Session} for chaining
* @api public
*/
Session.prototype.resetMaxAge = function(){
this.cookie.maxAge = this.cookie.originalMaxAge;
return this;
};
/**
* Save the session data with optional callback `fn(err)`.
*
* @param {Function} fn
* @return {Session} for chaining
* @api public
*/
Session.prototype.save = function(fn){
this.req.sessionStore.set(this.id, this, fn || function(){});
return this;
};
/**
* Re-loads the session data _without_ altering
* the maxAge or lastAccess properties. Invokes the
* callback `fn(err)`, after which time if no exception
* has occurred the `req.session` property will be
* a new `Session` object, although representing the
* same session.
*
* @param {Function} fn
* @return {Session} for chaining
* @api public
*/
Session.prototype.reload = function(fn){
var req = this.req
, store = this.req.sessionStore;
store.get(this.id, function(err, sess){
if (err) return fn(err);
if (!sess) return fn(new Error('failed to load session'));
store.createSession(req, sess);
fn();
});
return this;
};
/**
* Destroy `this` session.
*
* @param {Function} fn
* @return {Session} for chaining
* @api public
*/
Session.prototype.destroy = function(fn){
delete this.req.session;
this.req.sessionStore.destroy(this.id, fn);
return this;
};
/**
* Regenerate this request's session.
*
* @param {Function} fn
* @return {Session} for chaining
* @api public
*/
Session.prototype.regenerate = function(fn){
this.req.sessionStore.regenerate(this.req, fn);
return this;
};