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capture.js
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capture.js
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var d = new Date();
var reset = true;
var start_time;
var key_strokes = [];
var secret_shows = 1;
function key_signal(id, action, timestamp) {
this.id = id;
this.action = action;
this.timestamp = timestamp;
}
function server_call(url, parameters, successCallback) {
$.ajax({
url: url,
type: 'POST',
data: jQuery.param(parameters),
contentType: 'application/x-www-form-urlencoded; charset=UTF-8',
dataType: 'json',
success: successCallback,
error: function(xhr, textStatus, errorThrown) {
alert('Sorry... Server call failed: '+errorThrown);
}
});
}
function clickResult(msg) {
return function() {
alert(msg);
}
}
function toggle_secret() {
if(secret_shows == 0) {
$('#secret').show();
secret_shows = 1;
}
else{
$('#secret').hide();
secret_shows = 0;
}
}
function reset_capture() {
key_strokes = [];
reset = true;
$('#password').val('');
}
function show_current_keystrokes() {
var tdt = '';
var img_line = '';
for(var k in key_strokes) {
var file = key_strokes[k].action == 'd' ? "key_down" : "key_up";
tdt += '<td align="center" valign="bottom" nowrap>'+translate_key(key_strokes[k].id)+'<br/>'+'<img src="image/'+file+'.png" />'+'<br/>'+key_strokes[k].timestamp+'ms'+'</td>';
img_line += '<td id="img_'+k+'" align="center" valign="bottom" nowrap> </td>'
}
var txt = "<table border='0' cellpadding='10'><tr>" + tdt + "</tr><tr>"+img_line+"</tr></table>";
$('#current').html(txt);
}
function load_user_info() {
var url = "server/api-user_info.php";
var data = {
'username' : $('#username').val()
};
function onSuccess(responce) {
if(!responce.success) { alert("Error: " + responce.value); }
else {
$('#pass_hint').html("(hint: " + responce.value['password'] + ")");
var first = "";
var second = "";
for(var i = 0; i < responce.value.keystrokes.length; i++)
{
var delta = new Number(responce.value.statistics[i].delta).toPrecision(5);
var avg = new Number(responce.value.statistics[i].average).toPrecision(5);
if( i % 2 == 0)
{ // Down events
first = first + "<td align='center'>"+translate_key(responce.value.keystrokes[i].key)+"<br />"+"<img src='image/key_down.png' /><br /><b>μ:</b> "+avg+"ms<br /><b>σ:</b> "+delta+"ms</td>"
}
else
{ // Up events
second = second + "<td align='center'>"+translate_key(responce.value.keystrokes[i].key)+"<br />"+"<img src='image/key_up.png' /><br /><b>μ:</b> "+avg+"ms<br /><b>σ:</b> "+delta+"ms</td>"
}
}
var txt = "<table border='0' cellpadding='10'><tr>" + first + "</tr><tr>" + second + "</tr></table>";
$('#stats').html(txt);
txt = 'Number of logins: ' + responce.no_of_logins + '<br />Time since last login: '+responce.dt+'ms<br/><br />Activated rules:<br />';
for(var key in responce.fuzzy)
{
txt += '  [' + key + ']:<br />';
for(var kk in responce.fuzzy[key]) {
txt += '  [' + kk + ']: '+responce.fuzzy[key][kk]+'<br />';
}
txt += '<br/>';
}
txt += 'Acceptable error level: ' + (1.0 - responce.success_rate);
$('#fuzzy').html(txt);
}
}
server_call(url, data, onSuccess);
return false;
}
$(document).ready(function() {
$('#username').change(function() {
reset_capture();
show_current_keystrokes();
load_user_info();
$('#password').focus();
});
$('#secret_switch').click(function() {
toggle_secret();
return false;
});
$('#password').keydown(function(event) {
d = new Date();
if(reset) {
reset = false;
key_strokes = [];
start_time = d.getTime();
}
if(!is_special_key(event.keyCode)) {
var ts = (d.getTime() - start_time);
key_strokes.push(new key_signal(event.keyCode, 'd', ts));
show_current_keystrokes();
}
});
$('#password').keyup(function(event) {
d = new Date();
if(!is_special_key(event.keyCode)) {
var ts = (d.getTime() - start_time);
key_strokes.push(new key_signal(event.keyCode, 'u', ts));
show_current_keystrokes();
}
});
$('#loginForm').submit(function(event) {
var url = "server/srv_user-login.php";
var data = {
'username' : $('#username').val(),
'password' : $('#password').val(),
'keystrokes' : key_strokes
};
function onSuccess(responce) {
if(! responce.status) {
alert("Login failed: " + responce.message);
//reset_capture();
}
else {
alert("Successful login!");
}
reset_capture();
//show_current_keystrokes();
load_user_info();
var skata = '';
for(var k in responce.keystats) {
var color = responce.keystats[k].result ? 'green' : 'red';
var image = responce.keystats[k].result ? 'true.png' : 'false.png';
$('#img_'+k).css({"background-image" : "url('image/"+image+"')", "background-repeat": "no-repeat", "background-position" : "center", "cursor" : "pointer"});
$('#img_'+k).click(
clickResult(responce.keystats[k].msg)
);
}
var txt = '<br/>Current error level: ' + responce.error_level;
$('#end').html(txt);
}
server_call(url, data, onSuccess);
return false;
});
//$('#secret').hide();
load_user_info();
$('#password').focus();
});