/**
 * External login_auto script useful for Demo purposes
 * @Installation:
 * 			copy this script into webmail directory and change sServerURL and sClientUrl paths below
 * @Date:	4.7.2007 9:04:47
 **/

function oExt_Login (){

	this.sServerURL = 'proxy.php';								//proxy.php path (or webmail.php path if it is in the same domain)
	this.sClientUrl = 'http://mail.avantemedia.com:81/webmail/';			//WebClient Pro full URL
	this.sBasicUrl	= 'http://mail.avantemedia.com:81/webmail/basic/';	//WebClient Basic full URL

	//Automatically switch between protorols
	//this.sClientUrl	= document.location.protocol+'//merakdemo.com/webmail/';		//WebClient Pro full URL
	//this.sBasicUrl	= document.location.protocol+'//merakdemo.com/webmail/basic/';	//WebClient Basic full URL



	//Mozilla & MSIE7+
	if (window.XMLHttpRequest)
		this.oXMLHttp = new XMLHttpRequest();
	else
	//MSIE 6
	if(!navigator.__ice_version && window.ActiveXObject)
		this.oXMLHttp = new ActiveXObject('Microsoft.XMLHTTP');
	else
	    alert("Your Browser doesn't support HTTPRequest");
};

oExt_Login.prototype.response = function(sInput){

	var xOutput = null;
	try {
		xOutput = new ActiveXObject('Microsoft.XMLDOM');
		xOutput.async = false;
		xOutput.resolveExternals = false;
		xOutput.validateOnParse = false;
		xOutput.loadXML(sInput);

		if (xOutput.parseError.errorCode)
			alert(	"Error code: "+ xOutput.parseError.errorCode +
					"\nLine: " + xOutput.parseError.line + ':'+ xOutput.parseError.linePos +
					"\nReason: "+ xOutput.parseError.reason +
					"\n" + xOutput.parseError.srcText);
	}
	catch (e) {
		var xParser = new DOMParser();
		xOutput = xParser.parseFromString(sInput, 'text/xml');
	}
	
	this.oXMLHttp.open('POST', this.sServerURL, false);
	this.oXMLHttp.send(xOutput);

	return this.oXMLHttp.responseXML;
};

oExt_Login.prototype.login = function(user,pass,ip,bMode,rsa){
	if (!this.oXMLHttp || !user || (!pass && !rsa)) return;

	var tmp,sid;
	try{
		if (rsa)
			pass = rsa;
		else
		if (!(pass = this.getrsa(user,pass)))
			throw 'Invalid RSA';

		//SET LOGIN info
		tmp = this.response('<iq type="set"><query xmlns="webmail:iq:auth"><username>'+this.__escape(user)+'</username><digest>'+pass+'</digest><method>RSA</method><ip>'+this.__escape(ip)+'</ip></query></iq>');

		if (!(sid = tmp.getElementsByTagName('iq')[0].getAttribute('sid')))
			throw 'Invalid Login';
			
		this.redirect(sid,bMode);
	}
	catch(e){
		alert('Error - '+e);
	}
};

oExt_Login.prototype.__escape = function(str){
	var div = document.createElement('div');
		div.appendChild(document.createTextNode(str));
	return div.innerHTML;
};

oExt_Login.prototype.getrsa = function(user,pass){
		//GET RSA public key
		var tmp = this.response('<iq type="get" format="xml"><query xmlns="webmail:iq:auth"><username>'+this.__escape(user)+'</username><method>RSA</method></query></iq>');
		try{
			var key = tmp.getElementsByTagName('hashid')[0].firstChild.nodeValue;

			//Prepare RSA library
			var rsa = new RSAKey();
				rsa.setPublic(key, '10001');
		}
		catch(r){
			return;
		}

		return rsa.encrypt(pass);
};

oExt_Login.prototype.loginform = function(elm){
	var sError = '';
	if (!elm.username.value)
		sError = "USERNAME is blank\n";
	if (!elm.password.value)
		sError = "USERNAME is blank\n";
	if (!elm.ip.value)
		sError = "IP is blank (enable PHP scripting)";

	if (sError)
	    alert(sError);
	else
		this.login(elm.username.value,elm.password.value,elm.ip.value,elm.mode.value>0?true:false);

	return false;
};

oExt_Login.prototype.redirect = function(sid,bMode){
	document.location.href = (bMode?this.sClientUrl:this.sBasicUrl)+'?sid='+sid+(document.referrer?'':'&ref='+encodeURIComponent(document.location.protocol+'//'+document.location.hostname+'/'+document.location.pathname));
};

Ext_Login = new oExt_Login();