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/*!
* Connect - session - Session
* Copyright(c) 2010 Sencha Inc.
* Copyright(c) 2011 TJ Holowaychuk
* MIT Licensed
*/
'use strict';
/**
* Expose Session.
*/
module.exports = Session;
/**
* Create a new `Session` with the given request and `data`.
*
* @param {IncomingRequest} req
* @param {Object} data
* @api private
*/
function Session(req, data) {
Object.defineProperty(this, 'req', { value: req });
Object.defineProperty(this, 'id', { value: req.sessionID });
if (typeof data === 'object' && data !== null) {
// merge data into this, ignoring prototype properties
for (var prop in data) {
if (!(prop in this)) {
this[prop] = data[prop]
}
}
}
}
/**
* Update reset `.cookie.maxAge` to prevent
* the cookie from expiring when the
* session is still active.
*
* @return {Session} for chaining
* @api public
*/
defineMethod(Session.prototype, 'touch', function touch() {
return this.resetMaxAge();
});
/**
* Reset `.maxAge` to `.originalMaxAge`.
*
* @return {Session} for chaining
* @api public
*/
defineMethod(Session.prototype, 'resetMaxAge', function resetMaxAge() {
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
*/
defineMethod(Session.prototype, 'save', function save(fn) {
this.req.sessionStore.set(this.id, this, fn || function(){});
return this;
});
/**
* Re-loads the session data _without_ altering
* the maxAge 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
*/
defineMethod(Session.prototype, 'reload', function reload(fn) {
var req = this.req
var 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
*/
defineMethod(Session.prototype, 'destroy', function destroy(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
*/
defineMethod(Session.prototype, 'regenerate', function regenerate(fn) {
this.req.sessionStore.regenerate(this.req, fn);
return this;
});
/**
* Helper function for creating a method on a prototype.
*
* @param {Object} obj
* @param {String} name
* @param {Function} fn
* @private
*/
function defineMethod(obj, name, fn) {
Object.defineProperty(obj, name, {
configurable: true,
enumerable: false,
value: fn,
writable: true
});
};