You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
171 lines
3.6 KiB
171 lines
3.6 KiB
<html>
|
|
<!--
|
|
|
|
american fuzzy lop - <canvas> harness
|
|
-------------------------------------
|
|
|
|
Written and maintained by Michal Zalewski <lcamtuf@google.com>
|
|
|
|
Copyright 2013, 2014 Google LLC All rights reserved.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at:
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
A simple harness for going through afl-generated test cases, rendering them in
|
|
the browser environment, and discovering the use of uninitialized memory and
|
|
similar bugs. This code led to the discovery of a fair number of library and
|
|
browser security bugs!
|
|
|
|
The url_list[] array is a placeholder; for this to work properly, it needs to
|
|
be initialized with web-reachable paths to individual test cases. This can
|
|
be done manually or with a simple script.
|
|
|
|
-->
|
|
|
|
<body onload="set_images()">
|
|
|
|
<div id="status"></div>
|
|
|
|
<div id="image_div"></div>
|
|
|
|
<canvas height=64 width=64 id=cvs></canvas>
|
|
|
|
<h2>Results</h2>
|
|
|
|
<ul id="output"></ul>
|
|
|
|
<script>
|
|
|
|
var c = document.getElementById('cvs');
|
|
var ctx = c.getContext('2d');
|
|
|
|
var url_list = [
|
|
"images/id:000000,[...].jpg",
|
|
"images/id:000001,[...].jpg",
|
|
/* ... */
|
|
null
|
|
];
|
|
|
|
var USE_IMAGES = 50;
|
|
var cur_image = 0;
|
|
|
|
if (location.hash) cur_image = parseInt(location.hash.substr(1));
|
|
|
|
var loaded = 0;
|
|
var image_obj = [];
|
|
|
|
var msie_cleanup;
|
|
|
|
function check_results() {
|
|
|
|
var uniques = [];
|
|
|
|
clearTimeout(msie_cleanup);
|
|
|
|
ctx.clearRect(0, 0, 64, 64);
|
|
|
|
uniques.push(image_obj[0].imgdata);
|
|
|
|
for (var i = 1; i < USE_IMAGES; i++) {
|
|
|
|
if (!image_obj[i].imgdata) continue;
|
|
|
|
if (image_obj[0].imgdata != image_obj[i].imgdata) {
|
|
|
|
for (var j = 1; j < uniques.length; j++)
|
|
if (uniques[j] == image_obj[i].imgdata) break;
|
|
|
|
if (j == uniques.length) uniques.push(image_obj[i].imgdata);
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (uniques.length > 1) {
|
|
|
|
var str = '<li> Image ' + url_list[cur_image] + ' has ' + uniques.length + ' variants: ';
|
|
|
|
for (var i = 0; i < uniques.length; i++)
|
|
str += '<img src="' + uniques[i] + '">';
|
|
|
|
document.getElementById('output').innerHTML += str;
|
|
|
|
}
|
|
|
|
cur_image++;
|
|
set_images();
|
|
}
|
|
|
|
|
|
function count_image() {
|
|
|
|
if (!this.complete || this.counted) return;
|
|
|
|
this.counted = true;
|
|
|
|
loaded++;
|
|
|
|
ctx.clearRect(0, 0, 64, 64);
|
|
|
|
try {
|
|
ctx.drawImage(this, 0, 0, 64, 64);
|
|
} catch (e) { }
|
|
|
|
this.imgdata = c.toDataURL();
|
|
|
|
if (loaded == USE_IMAGES) check_results();
|
|
}
|
|
|
|
|
|
function set_images() {
|
|
|
|
loaded = 0;
|
|
|
|
document.getElementById('status').innerHTML = 'Now processing ' + cur_image + '...';
|
|
location.hash = '#' + cur_image;
|
|
|
|
if (url_list[cur_image] == null) {
|
|
alert('Done!');
|
|
return;
|
|
}
|
|
|
|
restart_images();
|
|
|
|
msie_cleanup = setTimeout(check_results, 5000);
|
|
|
|
for (var i = 0; i < USE_IMAGES; i++)
|
|
image_obj[i].src = url_list[cur_image] + '?' + Math.random();
|
|
|
|
}
|
|
|
|
|
|
function restart_images() {
|
|
|
|
for (var i = 0; i < USE_IMAGES; i++)
|
|
if (image_obj[i]) image_obj[i].counted = true;
|
|
|
|
document.getElementById('image_div').innerHTML = '';
|
|
image_obj = [];
|
|
|
|
for (var i = 0; i < USE_IMAGES; i++) {
|
|
|
|
image_obj[i] = new Image();
|
|
image_obj[i].height = 64;
|
|
image_obj[i].width = 64;
|
|
image_obj[i].onerror = count_image;
|
|
image_obj[i].onload = count_image;
|
|
|
|
document.getElementById('image_div').appendChild(image_obj[i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
</script>
|
|
|
|
<iframe src='http://www.cnn.com/'></iframe>
|