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session.js
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/
session.js
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/*!
* Ext JS Connect
* Copyright(c) 2010 Ext JS, Inc.
* MIT Licensed
*/
/**
* Module dependencies.
*/
var MemoryStore = require('./session/memory').MemoryStore,
utils = require('./../utils');
/**
* Setup session store with the given `options`.
*
* Options:
*
* - `store` Session store instance
* - `fingerprint` Custom fingerprint hashing function
*
* @param {Object} options
* @return {Function}
* @api public
*/
module.exports = function(options){
options = options || {};
// Default memory store
store = options.store || new MemoryStore;
// Default fingerprint hashing function
store.fingerprint = options.fingerprint || function(sid, req){
return sid
+ req.socket.remoteAddress
+ (req.headers['user-agent'] || '');
};
return function(req, res, next){
// Expose store
req.sessionStore = store;
if (req.cookies) {
// Commit session
var writeHead = res.writeHead;
res.writeHead = function(status, headers){
headers = headers || {};
res.writeHead = writeHead;
// TODO: async? ...
store.commit(req);
// TODO: abstract
store.cookie.expires = new Date(+new Date() + store.maxAge);
headers['Set-Cookie'] = utils.serializeCookie(store.key, req.session.id, store.cookie);
return res.writeHead(status, headers);
};
// Fetch session
store.fetch(req, function(err, sess){
req.session = sess || store.createSession();
req.session.touch();
next(err);
});
} else {
next();
}
}
};