143 lines
3 KiB
JavaScript
143 lines
3 KiB
JavaScript
/*!
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* Connect - session - Session
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* Copyright(c) 2010 Sencha Inc.
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* Copyright(c) 2011 TJ Holowaychuk
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* MIT Licensed
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*/
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'use strict';
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/**
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* Expose Session.
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*/
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module.exports = Session;
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/**
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* Create a new `Session` with the given request and `data`.
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*
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* @param {IncomingRequest} req
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* @param {Object} data
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* @api private
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*/
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function Session(req, data) {
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Object.defineProperty(this, 'req', { value: req });
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Object.defineProperty(this, 'id', { value: req.sessionID });
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if (typeof data === 'object' && data !== null) {
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// merge data into this, ignoring prototype properties
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for (var prop in data) {
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if (!(prop in this)) {
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this[prop] = data[prop]
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}
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}
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}
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}
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/**
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* Update reset `.cookie.maxAge` to prevent
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* the cookie from expiring when the
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* session is still active.
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*
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* @return {Session} for chaining
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* @api public
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*/
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defineMethod(Session.prototype, 'touch', function touch() {
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return this.resetMaxAge();
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});
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/**
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* Reset `.maxAge` to `.originalMaxAge`.
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*
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* @return {Session} for chaining
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* @api public
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*/
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defineMethod(Session.prototype, 'resetMaxAge', function resetMaxAge() {
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this.cookie.maxAge = this.cookie.originalMaxAge;
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return this;
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});
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/**
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* Save the session data with optional callback `fn(err)`.
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*
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* @param {Function} fn
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* @return {Session} for chaining
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* @api public
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*/
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defineMethod(Session.prototype, 'save', function save(fn) {
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this.req.sessionStore.set(this.id, this, fn || function(){});
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return this;
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});
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/**
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* Re-loads the session data _without_ altering
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* the maxAge properties. Invokes the callback `fn(err)`,
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* after which time if no exception has occurred the
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* `req.session` property will be a new `Session` object,
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* although representing the same session.
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*
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* @param {Function} fn
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* @return {Session} for chaining
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* @api public
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*/
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defineMethod(Session.prototype, 'reload', function reload(fn) {
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var req = this.req
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var store = this.req.sessionStore
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store.get(this.id, function(err, sess){
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if (err) return fn(err);
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if (!sess) return fn(new Error('failed to load session'));
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store.createSession(req, sess);
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fn();
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});
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return this;
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});
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/**
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* Destroy `this` session.
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*
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* @param {Function} fn
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* @return {Session} for chaining
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* @api public
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*/
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defineMethod(Session.prototype, 'destroy', function destroy(fn) {
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delete this.req.session;
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this.req.sessionStore.destroy(this.id, fn);
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return this;
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});
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/**
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* Regenerate this request's session.
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*
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* @param {Function} fn
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* @return {Session} for chaining
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* @api public
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*/
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defineMethod(Session.prototype, 'regenerate', function regenerate(fn) {
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this.req.sessionStore.regenerate(this.req, fn);
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return this;
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});
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/**
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* Helper function for creating a method on a prototype.
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*
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* @param {Object} obj
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* @param {String} name
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* @param {Function} fn
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* @private
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*/
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function defineMethod(obj, name, fn) {
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Object.defineProperty(obj, name, {
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configurable: true,
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enumerable: false,
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value: fn,
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writable: true
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});
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};
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