--- /dev/null
+
+/*!
+ * Connect - vhost
+ * Copyright(c) 2010 Sencha Inc.
+ * Copyright(c) 2011 TJ Holowaychuk
+ * MIT Licensed
+ */
+
+/**
+ * Setup vhost for the given `hostname` and `server`.
+ *
+ * Examples:
+ *
+ * connect(
+ * connect.vhost('foo.com',
+ * connect.createServer(...middleware...)
+ * ),
+ * connect.vhost('bar.com',
+ * connect.createServer(...middleware...)
+ * )
+ * );
+ *
+ * @param {String} hostname
+ * @param {Server} server
+ * @return {Function}
+ * @api public
+ */
+
+module.exports = function vhost(hostname, server){
+ if (!hostname) throw new Error('vhost hostname required');
+ if (!server) throw new Error('vhost server required');
+ var regexp = new RegExp('^' + hostname.replace(/[*]/g, '(.*?)') + '$');
+ if (server.onvhost) server.onvhost(hostname);
+ return function vhost(req, res, next){
+ if (!req.headers.host) return next();
+ var host = req.headers.host.split(':')[0];
+ if (req.subdomains = regexp.exec(host)) {
+ req.subdomains = req.subdomains[0].split('.').slice(0, -1);
+ server.emit("request", req, res, next);
+ } else {
+ next();
+ }
+ };
+};