| Index: third_party/afl/src/experimental/canvas_harness/canvas_harness.html
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| diff --git a/third_party/afl/src/experimental/canvas_harness/canvas_harness.html b/third_party/afl/src/experimental/canvas_harness/canvas_harness.html
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| new file mode 100644
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| index 0000000000000000000000000000000000000000..192936675ce1d3de74b3eb0ad4441f56cf3c57f0
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| --- /dev/null
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| +++ b/third_party/afl/src/experimental/canvas_harness/canvas_harness.html
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| @@ -0,0 +1,170 @@
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| +<html>
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| +<!--
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| +
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| + american fuzzy lop - <canvas> harness
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| + -------------------------------------
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| +
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| + Written and maintained by Michal Zalewski <lcamtuf@google.com>
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| +
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| + Copyright 2013, 2014 Google Inc. All rights reserved.
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| +
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| + Licensed under the Apache License, Version 2.0 (the "License");
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| + you may not use this file except in compliance with the License.
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| + You may obtain a copy of the License at:
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| +
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| + http://www.apache.org/licenses/LICENSE-2.0
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| +
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| + A simple harness for going through afl-generated test cases, rendering them in
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| + the browser environment, and discovering the use of uninitialized memory and
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| + similar bugs. This code led to the discovery of a fair number of library and
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| + browser security bugs!
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| +
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| + The url_list[] array is a placeholder; for this to work properly, it needs to
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| + be initialized with web-reachable paths to individual test cases. This can
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| + be done manually or with a simple script.
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| +
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| +-->
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| +
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| +<body onload="set_images()">
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| +
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| +<div id="status"></div>
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| +
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| +<div id="image_div"></div>
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| +
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| +<canvas height=64 width=64 id=cvs></canvas>
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| +
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| +<h2>Results</h2>
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| +
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| +<ul id="output"></ul>
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| +
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| +<script>
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| +
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| +var c = document.getElementById('cvs');
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| +var ctx = c.getContext('2d');
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| +
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| +var url_list = [
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| + "images/id:000000,[...].jpg",
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| + "images/id:000001,[...].jpg",
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| + /* ... */
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| + null
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| +];
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| +
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| +var USE_IMAGES = 50;
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| +var cur_image = 0;
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| +
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| +if (location.hash) cur_image = parseInt(location.hash.substr(1));
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| +
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| +var loaded = 0;
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| +var image_obj = [];
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| +
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| +var msie_cleanup;
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| +
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| +function check_results() {
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| +
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| + var uniques = [];
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| +
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| + clearTimeout(msie_cleanup);
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| +
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| + ctx.clearRect(0, 0, 64, 64);
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| +
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| + uniques.push(image_obj[0].imgdata);
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| +
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| + for (var i = 1; i < USE_IMAGES; i++) {
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| +
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| + if (!image_obj[i].imgdata) continue;
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| +
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| + if (image_obj[0].imgdata != image_obj[i].imgdata) {
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| +
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| + for (var j = 1; j < uniques.length; j++)
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| + if (uniques[j] == image_obj[i].imgdata) break;
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| +
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| + if (j == uniques.length) uniques.push(image_obj[i].imgdata);
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| +
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| +
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| + }
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| +
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| + }
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| +
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| + if (uniques.length > 1) {
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| +
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| + var str = '<li> Image ' + url_list[cur_image] + ' has ' + uniques.length + ' variants: ';
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| +
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| + for (var i = 0; i < uniques.length; i++)
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| + str += '<img src="' + uniques[i] + '">';
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| +
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| + document.getElementById('output').innerHTML += str;
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| +
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| + }
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| +
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| + cur_image++;
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| + set_images();
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| +}
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| +
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| +
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| +function count_image() {
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| +
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| + if (!this.complete || this.counted) return;
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| +
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| + this.counted = true;
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| +
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| + loaded++;
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| +
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| + ctx.clearRect(0, 0, 64, 64);
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| +
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| + try {
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| + ctx.drawImage(this, 0, 0, 64, 64);
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| + } catch (e) { }
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| +
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| + this.imgdata = c.toDataURL();
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| +
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| + if (loaded == USE_IMAGES) check_results();
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| +}
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| +
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| +
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| +function set_images() {
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| +
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| + loaded = 0;
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| +
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| + document.getElementById('status').innerHTML = 'Now processing ' + cur_image + '...';
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| + location.hash = '#' + cur_image;
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| +
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| + if (url_list[cur_image] == null) {
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| + alert('Done!');
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| + return;
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| + }
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| +
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| + restart_images();
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| +
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| + msie_cleanup = setTimeout(check_results, 5000);
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| +
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| + for (var i = 0; i < USE_IMAGES; i++)
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| + image_obj[i].src = url_list[cur_image] + '?' + Math.random();
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| +
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| +}
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| +
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| +
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| +function restart_images() {
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| +
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| + for (var i = 0; i < USE_IMAGES; i++)
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| + if (image_obj[i]) image_obj[i].counted = true;
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| +
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| + document.getElementById('image_div').innerHTML = '';
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| + image_obj = [];
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| +
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| + for (var i = 0; i < USE_IMAGES; i++) {
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| +
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| + image_obj[i] = new Image();
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| + image_obj[i].height = 64;
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| + image_obj[i].width = 64;
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| + image_obj[i].onerror = count_image;
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| + image_obj[i].onload = count_image;
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| +
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| + document.getElementById('image_div').appendChild(image_obj[i]);
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| +
|
| + }
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| +
|
| +}
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| +
|
| +</script>
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| +
|
| +<iframe src='http://www.cnn.com/'></iframe>
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|
|