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+/*
+ *  Copyright (C) 2010  Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
+ *
+ *  This file is part of PSĜS, a PubSub server written in JavaScript.
+ *
+ *  PSĜS is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as
+ *  published by the Free Software Foundation, either version 3 of the
+ *  License.
+ *
+ *  PSĜS is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with PSĜS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+var sha1hex = require('sha1').hex;
+
+var util = exports;
+util.makeRandomId = function() {
+	return sha1hex(Date()+Math.random());
+};
+
+var JID = function(jid) {
+	var a = jid.indexOf('@');
+	var b = jid.indexOf('/', a);
+	this.full = jid;
+	if (b == -1) {
+		this.resource = '';
+	} else {
+		this.resource = jid.substring(b+1);
+		jid = jid.substring(0, b);
+	}
+	if (a == -1) {
+		this.user = '';
+		this.server = jid;
+	} else {
+		this.user = jid.substring(0, a);
+		this.server = jid.substring(a+1);
+	}
+	this.bare = jid;
+};
+
+util.toBareJID = function(jid) {
+	var j = new JID(jid);
+	return j.bare;
+};