Test cleanup.
This commit is contained in:
kkapsner
parent
d8f6fb1ac9
commit
7d0c9681df
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@ -1,8 +1,7 @@
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<!DOCTYPE html>
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<html>
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<head>
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<title>Detection Test</title>
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<title>Detection test</title>
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<style>
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.notRun {
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color: lightgray;
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@ -19,170 +18,9 @@
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</style>
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</head>
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<body>
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<h1>Detection test</h1>
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Checks if the addon can be detected by websites.
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<ul id="tests"></ul>
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<script>
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var addTest = (function(){
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var stati = [
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{className: "notRun", text: "not run"},
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{className: "loud", text: "CB detected"},
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{className: "stealthy", text: "CB not detected"},
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{className: "failed", text: "test failed"}
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];
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var ul = document.getElementById("tests");
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return function addTest(name, func){
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var logs = [];
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function log(){
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logs.push(Array.prototype.slice.call(arguments).join(" "));
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}
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var status = 0;
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try {
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status = func(log)? 1: 2;
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}
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catch (e){
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console.log(e);
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status = 3;
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}
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var li = document.createElement("li");
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li.className = stati[status].className;
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var nameNode = document.createElement("span");
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nameNode.className = "name";
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nameNode.textContent = name;
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nameNode.title = func.toString();
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li.appendChild(nameNode);
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li.appendChild(document.createTextNode(": "));
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var statusNode = document.createElement("span");
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statusNode.className = "status";
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statusNode.textContent = stati[status].text;
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statusNode.title = logs.join("\n");
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li.appendChild(statusNode);
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ul.appendChild(li);
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}
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}());
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addTest("function length", function(log){
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if (CanvasRenderingContext2D.prototype.getImageData.length !== 4){
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log("expected 4 parameters for getImageData - got", CanvasRenderingContext2D.prototype.getImageData.length);
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return true;
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}
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else {
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return false;
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}
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});
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addTest("function code", function(log){
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if (!CanvasRenderingContext2D.prototype.getImageData.toString().match(/^\s*function getImageData\s*\(\)\s*\{\s*\[native code\]\s*\}\s*$/)){
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log("unexpected function code:", CanvasRenderingContext2D.prototype.getImageData.toString());
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return true;
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}
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else {
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return false;
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}
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});
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addTest("function name", function(){return CanvasRenderingContext2D.prototype.getImageData.name !== "getImageData"});
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addTest("error provocation 1", function(log){
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var canvas = document.createElement('canvas');
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var ctx = canvas.getContext("2d");
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var canvasBlocker = false;
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try{
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ctx.getImageData(0, 0, 0, 0);
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}
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catch (err){
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try {
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log(err.name);
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log(err.toString());
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}
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catch (e){
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canvasBlocker = true;
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}
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}
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return canvasBlocker;
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});
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addTest("error provocation 2", function(log){
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var canvas = document.createElement('canvas');
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canvas.width = 0;
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var ctx = canvas.getContext("2d");
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var canvasBlocker = false;
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try{
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ctx.getImageData(0, 0, 1, 1);
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log("no error provoked");
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}
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catch (err){
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try {
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log(err.name);
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log(err.toString());
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}
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catch (e){
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canvasBlocker = true;
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}
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}
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return canvasBlocker;
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});
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addTest("error provocation 3", function(log){
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var canvasBlocker = false;
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try{
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CanvasRenderingContext2D.prototype.getImageData.apply(undefined, [0, 0, 1, 1]);
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}
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catch (err){
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try {
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log(err.name);
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log(err.toString());
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}
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catch (e){
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canvasBlocker = true;
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}
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}
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return canvasBlocker;
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});
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function testKnownPixelValue(size, log){
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var canvas = document.createElement("canvas");
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canvas.height = size;
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canvas.width = size;
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var context = canvas.getContext("2d");
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context.fillStyle = "rgba(0, 127, 255, 1)";
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var pixelValues = [0, 127, 255, 255];
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context.fillRect(0, 0, canvas.width, canvas.height);
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var p = context.getImageData(0, 0, canvas.width, canvas.height).data;
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for (var i = 0; i < p.length; i += 1){
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if (p[i] !== pixelValues[i%4]){
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log("wrong value", p[i], "at", i, "expected", pixelValues[i%4]);
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return true;
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}
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}
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return false;
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}
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addTest("known pixel value test 1", function(log){
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return testKnownPixelValue(1, log);
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});
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addTest("known pixel value test 10", function(log){
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return testKnownPixelValue(10, log);
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});
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addTest("double readout test", function(log){
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var canvas = document.createElement("canvas");
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var context = canvas.getContext("2d");
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var imageData = context.getImageData(0, 0, canvas.width, canvas.height);
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for (var i = 0; i < imageData.data.length; i += 1){
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if (i % 4 !== 3){
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imageData.data[i] = Math.floor(256 * Math.random());
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}
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else {
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imageData.data[i] = 255;
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}
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}
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context.putImageData(imageData, 0, 0);
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var imageData1 = context.getImageData(0, 0, canvas.width, canvas.height);
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var imageData2 = context.getImageData(0, 0, canvas.width, canvas.height);
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for (var i = 0; i < imageData2.data.length; i += 1){
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if (imageData1.data[i] !== imageData2.data[i]){
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log("mismatch at", i, ":",
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imageData1.data[i], "(", imageData1.data[i].toString(2), ")",
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"!=",
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imageData2.data[i], "(", imageData2.data[i].toString(2), ")",
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"| original:", imageData.data[i], "(", imageData.data[i].toString(2), ")");
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return true;
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}
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}
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return false;
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});
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</script>
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<script src="detectionTest.js"></script>
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</body>
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</html>
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@ -0,0 +1,195 @@
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var addTest = (function(){
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var stati = [
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{className: "notRun", text: "not run"},
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{className: "loud", text: "CB detected"},
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{className: "stealthy", text: "CB not detected"},
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{className: "failed", text: "test failed"}
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];
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var ul = document.getElementById("tests");
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return function addTest(name, func){
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var logs = [];
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function log(){
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logs.push(Array.prototype.slice.call(arguments).join(" "));
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}
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var status = 0;
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try {
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status = func(log)? 1: 2;
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}
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catch (e){
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console.log(e);
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status = 3;
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}
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var li = document.createElement("li");
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li.className = stati[status].className;
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var nameNode = document.createElement("span");
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nameNode.className = "name";
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nameNode.textContent = name;
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nameNode.title = func.toString();
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li.appendChild(nameNode);
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li.appendChild(document.createTextNode(": "));
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var statusNode = document.createElement("span");
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statusNode.className = "status";
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statusNode.textContent = stati[status].text;
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statusNode.title = logs.join("\n");
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li.appendChild(statusNode);
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ul.appendChild(li);
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}
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}());
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addTest("function length", function(log){
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if (CanvasRenderingContext2D.prototype.getImageData.length !== 4){
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log("expected 4 parameters for getImageData - got", CanvasRenderingContext2D.prototype.getImageData.length);
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return true;
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}
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else {
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return false;
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}
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});
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addTest("function code", function(log){
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if (!CanvasRenderingContext2D.prototype.getImageData.toString().match(/^\s*function getImageData\s*\(\)\s*\{\s*\[native code\]\s*\}\s*$/)){
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log("unexpected function code:", CanvasRenderingContext2D.prototype.getImageData.toString());
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return true;
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}
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else {
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return false;
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}
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});
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addTest("function name", function(){return CanvasRenderingContext2D.prototype.getImageData.name !== "getImageData"});
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addTest("error provocation 1", function(log){
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var canvas = document.createElement('canvas');
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var ctx = canvas.getContext("2d");
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var canvasBlocker = false;
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try{
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ctx.getImageData(0, 0, 0, 0);
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}
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catch (err){
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try {
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log(err.name);
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log(err.toString());
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}
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catch (e){
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canvasBlocker = true;
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}
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}
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return canvasBlocker;
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});
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addTest("error provocation 2", function(log){
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var canvas = document.createElement('canvas');
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canvas.width = 0;
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var ctx = canvas.getContext("2d");
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var canvasBlocker = false;
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try{
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ctx.getImageData(0, 0, 1, 1);
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log("no error provoked");
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}
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catch (err){
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try {
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log(err.name);
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log(err.toString());
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}
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catch (e){
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canvasBlocker = true;
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}
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}
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return canvasBlocker;
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});
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addTest("error provocation 3", function(log){
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var canvasBlocker = false;
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try{
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CanvasRenderingContext2D.prototype.getImageData.apply(undefined, [0, 0, 1, 1]);
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}
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catch (err){
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try {
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log(err.name);
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log(err.toString());
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}
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catch (e){
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canvasBlocker = true;
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}
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}
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return canvasBlocker;
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});
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function testKnownPixelValue(size, log){
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var canvas = document.createElement("canvas");
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canvas.height = size;
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canvas.width = size;
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var context = canvas.getContext("2d");
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context.fillStyle = "rgba(0, 127, 255, 1)";
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var pixelValues = [0, 127, 255, 255];
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context.fillRect(0, 0, canvas.width, canvas.height);
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var p = context.getImageData(0, 0, canvas.width, canvas.height).data;
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for (var i = 0; i < p.length; i += 1){
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if (p[i] !== pixelValues[i%4]){
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log("wrong value", p[i], "at", i, "expected", pixelValues[i%4]);
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return true;
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}
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}
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return false;
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}
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addTest("known pixel value test 1", function(log){
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return testKnownPixelValue(1, log);
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});
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addTest("known pixel value test 10", function(log){
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return testKnownPixelValue(10, log);
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});
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addTest("double readout test", function(log){
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var canvas = document.createElement("canvas");
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var context = canvas.getContext("2d");
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var imageData = context.getImageData(0, 0, canvas.width, canvas.height);
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for (var i = 0; i < imageData.data.length; i += 1){
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if (i % 4 !== 3){
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imageData.data[i] = Math.floor(256 * Math.random());
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}
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else {
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imageData.data[i] = 255;
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}
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}
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context.putImageData(imageData, 0, 0);
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var imageData1 = context.getImageData(0, 0, canvas.width, canvas.height);
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var imageData2 = context.getImageData(0, 0, canvas.width, canvas.height);
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for (var i = 0; i < imageData2.data.length; i += 1){
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if (imageData1.data[i] !== imageData2.data[i]){
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log("mismatch at", i, ":",
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imageData1.data[i], "(", imageData1.data[i].toString(2), ")",
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"!=",
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imageData2.data[i], "(", imageData2.data[i].toString(2), ")",
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"| original:", imageData.data[i], "(", imageData.data[i].toString(2), ")"
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);
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return true;
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}
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}
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return false;
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});
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addTest("readout - in - out test", function(log){
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var canvas = document.createElement("canvas");
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var context = canvas.getContext("2d");
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var imageData = context.getImageData(0, 0, canvas.width, canvas.height);
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for (var i = 0; i < imageData.data.length; i += 1){
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if (i % 4 !== 3){
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imageData.data[i] = Math.floor(256 * Math.random());
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}
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else {
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imageData.data[i] = 255;
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}
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}
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context.putImageData(imageData, 0, 0);
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var imageData1 = context.getImageData(0, 0, canvas.width, canvas.height);
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var canvas2 = document.createElement("canvas");
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var context2 = canvas2.getContext("2d");
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context2.putImageData(imageData1, 0, 0);
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var imageData2 = context2.getImageData(0, 0, canvas.width, canvas.height);
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for (var i = 0; i < imageData2.data.length; i += 1){
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if (imageData1.data[i] !== imageData2.data[i]){
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log("mismatch at", i, ":",
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imageData1.data[i], "(", imageData1.data[i].toString(2), ")",
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"!=",
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imageData2.data[i], "(", imageData2.data[i].toString(2), ")"
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);
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return true;
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}
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}
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return false;
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});
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@ -0,0 +1 @@
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console.log("first possible call");
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@ -0,0 +1,15 @@
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<!DOCTYPE html>
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<html>
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<head>
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<title>Test pages</title>
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</head>
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<body>
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<h1>Test pages for CanvasBlocker</h1>
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<ul>
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<li><a href="test.html">Fingerprinting test</a></li>
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<li><a href="detectionTest.html">Detection test</a></li>
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<li><a href="performanceTest.html">Performance test</a></li>
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<li><a href="webGL-Test.html">Support for webGL</a></li>
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</ul>
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</body></html>
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@ -1,137 +1,12 @@
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<!DOCTYPE html>
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<script>console.log("first possible call");</script>
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<html>
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<head>
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<title>Performance test</title>
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</head>
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<body>
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<h1>Performance test</h1>
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Tests the canvas readout performance.
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<div id="log">
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</div>
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<script>
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var createLog = function(){
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var div = document.getElementById("log");
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return function createLog(){
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var logDiv = document.createElement("div");
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logDiv.className = "log";
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div.appendChild(logDiv);
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return function createLine(str){
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var logLine = document.createElement("div");
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logLine.className = "logLine";
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logDiv.appendChild(logLine);
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logLine.textContent = str;
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return function updateLine(str){
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logLine.textContent = str;
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};
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};
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};
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}();
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var performTest = function(){
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return function performTest(name, func, innerRunLength, outerRunLength){
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var log = createLog();
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log("test " + name);
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var line = log("starting");
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var time = 0;
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var time2 = 0;
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var min = Number.POSITIVE_INFINITY;
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var max = 0;
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var outerI = 0;
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function run(){
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for (var i = 0; i < innerRunLength; i += 1){
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func.prepare();
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var start = performance.now();
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func.test();
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var end = performance.now();
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var duration = end - start;
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min = Math.min(min, duration);
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max = Math.max(max, duration);
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time2 += duration * duration;
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time += duration;
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}
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outerI += 1;
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var totalRunI = outerI * innerRunLength;
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line(
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"finished run " + totalRunI + " from " + (innerRunLength * outerRunLength) +
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" -> average: " + (time / totalRunI).toFixed(2) + "ms" +
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"(min: " + min.toFixed(2) + "ms, max: " + max.toFixed(2) + "ms)"
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);
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if (outerI < outerRunLength){
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window.setTimeout(run, 10);
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}
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else {
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log("finished");
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}
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}
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window.setTimeout(run, 10);
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};
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}();
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function draw(canvas){
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canvas.setAttribute("width", 220);
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canvas.setAttribute("height", 30);
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var fp_text = "BrowserLeaks,com <canvas> 10";
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var ctx = canvas.getContext('2d');
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ctx.textBaseline = "top";
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ctx.font = "14px 'Arial'";
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ctx.textBaseline = "alphabetic";
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ctx.fillStyle = "#f60";
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ctx.fillRect(125, 1, 62, 20);
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ctx.fillStyle = "#069";
|
||||
ctx.fillText(fp_text, 2, 15);
|
||||
ctx.fillStyle = "rgba(102, 204, 0, 07)";
|
||||
ctx.fillText(fp_text, 4, 17);
|
||||
|
||||
return ctx;
|
||||
}
|
||||
|
||||
var fingerprintTest = function(){
|
||||
var canvas;
|
||||
return {
|
||||
prepare: function(){
|
||||
// create window canvas
|
||||
canvas = document.createElement('canvas');
|
||||
// draw image in window canvas
|
||||
draw(canvas);
|
||||
},
|
||||
test: function fingerprintTest(){
|
||||
return canvas.toDataURL();
|
||||
}
|
||||
};
|
||||
}();
|
||||
|
||||
var randomImageTest = function(){
|
||||
var canvas;
|
||||
|
||||
return {
|
||||
prepare: function(){
|
||||
canvas = document.createElement("canvas");
|
||||
canvas.width = 1000;
|
||||
canvas.height = 100;
|
||||
var imageData = new ImageData(canvas.width, canvas.height);
|
||||
var data = imageData.data;
|
||||
|
||||
for (var i = 0; i < data.length; i += 4){
|
||||
data[i + 0] = Math.floor(256 * Math.random());
|
||||
data[i + 1] = Math.floor(256 * Math.random());
|
||||
data[i + 2] = Math.floor(256 * Math.random());
|
||||
data[i + 3] = 255;
|
||||
}
|
||||
|
||||
canvas.getContext("2d").putImageData(imageData, 0, 0);
|
||||
},
|
||||
test: function randomImageTest(){
|
||||
return canvas.toDataURL();
|
||||
}
|
||||
};
|
||||
}();
|
||||
|
||||
|
||||
|
||||
|
||||
performTest("fingerprinting", fingerprintTest, 10, 100);
|
||||
performTest("big random image", randomImageTest, 10, 10);
|
||||
</script>
|
||||
<script src="performanceTest.js"></script>
|
||||
</body></html>
|
||||
|
|
@ -0,0 +1,123 @@
|
|||
|
||||
var createLog = function(){
|
||||
var div = document.getElementById("log");
|
||||
|
||||
return function createLog(){
|
||||
var logDiv = document.createElement("div");
|
||||
logDiv.className = "log";
|
||||
div.appendChild(logDiv);
|
||||
return function createLine(str){
|
||||
var logLine = document.createElement("div");
|
||||
logLine.className = "logLine";
|
||||
logDiv.appendChild(logLine);
|
||||
logLine.textContent = str;
|
||||
return function updateLine(str){
|
||||
logLine.textContent = str;
|
||||
};
|
||||
};
|
||||
};
|
||||
}();
|
||||
|
||||
var performTest = function(){
|
||||
return function performTest(name, func, innerRunLength, outerRunLength){
|
||||
var log = createLog();
|
||||
log("test " + name);
|
||||
var line = log("starting");
|
||||
var time = 0;
|
||||
var time2 = 0;
|
||||
var min = Number.POSITIVE_INFINITY;
|
||||
var max = 0;
|
||||
var outerI = 0;
|
||||
function run(){
|
||||
for (var i = 0; i < innerRunLength; i += 1){
|
||||
func.prepare();
|
||||
var start = performance.now();
|
||||
func.test();
|
||||
var end = performance.now();
|
||||
var duration = end - start;
|
||||
min = Math.min(min, duration);
|
||||
max = Math.max(max, duration);
|
||||
time2 += duration * duration;
|
||||
time += duration;
|
||||
}
|
||||
outerI += 1;
|
||||
var totalRunI = outerI * innerRunLength;
|
||||
line(
|
||||
"finished run " + totalRunI + " from " + (innerRunLength * outerRunLength) +
|
||||
" -> average: " + (time / totalRunI).toFixed(2) + "ms" +
|
||||
"(min: " + min.toFixed(2) + "ms, max: " + max.toFixed(2) + "ms)"
|
||||
);
|
||||
if (outerI < outerRunLength){
|
||||
window.setTimeout(run, 10);
|
||||
}
|
||||
else {
|
||||
log("finished");
|
||||
}
|
||||
}
|
||||
window.setTimeout(run, 10);
|
||||
};
|
||||
}();
|
||||
|
||||
function draw(canvas){
|
||||
canvas.setAttribute("width", 220);
|
||||
canvas.setAttribute("height", 30);
|
||||
|
||||
var fp_text = "BrowserLeaks,com <canvas> 10";
|
||||
|
||||
var ctx = canvas.getContext('2d');
|
||||
ctx.textBaseline = "top";
|
||||
ctx.font = "14px 'Arial'";
|
||||
ctx.textBaseline = "alphabetic";
|
||||
ctx.fillStyle = "#f60";
|
||||
ctx.fillRect(125, 1, 62, 20);
|
||||
ctx.fillStyle = "#069";
|
||||
ctx.fillText(fp_text, 2, 15);
|
||||
ctx.fillStyle = "rgba(102, 204, 0, 07)";
|
||||
ctx.fillText(fp_text, 4, 17);
|
||||
|
||||
return ctx;
|
||||
}
|
||||
|
||||
var fingerprintTest = function(){
|
||||
var canvas;
|
||||
return {
|
||||
prepare: function(){
|
||||
// create window canvas
|
||||
canvas = document.createElement('canvas');
|
||||
// draw image in window canvas
|
||||
draw(canvas);
|
||||
},
|
||||
test: function fingerprintTest(){
|
||||
return canvas.toDataURL();
|
||||
}
|
||||
};
|
||||
}();
|
||||
|
||||
var randomImageTest = function(){
|
||||
var canvas;
|
||||
|
||||
return {
|
||||
prepare: function(){
|
||||
canvas = document.createElement("canvas");
|
||||
canvas.width = 1000;
|
||||
canvas.height = 100;
|
||||
var imageData = new ImageData(canvas.width, canvas.height);
|
||||
var data = imageData.data;
|
||||
|
||||
for (var i = 0; i < data.length; i += 4){
|
||||
data[i + 0] = Math.floor(256 * Math.random());
|
||||
data[i + 1] = Math.floor(256 * Math.random());
|
||||
data[i + 2] = Math.floor(256 * Math.random());
|
||||
data[i + 3] = 255;
|
||||
}
|
||||
|
||||
canvas.getContext("2d").putImageData(imageData, 0, 0);
|
||||
},
|
||||
test: function randomImageTest(){
|
||||
return canvas.toDataURL();
|
||||
}
|
||||
};
|
||||
}();
|
||||
|
||||
performTest("fingerprinting", fingerprintTest, 10, 100);
|
||||
performTest("big random image", randomImageTest, 10, 10);
|
||||
|
|
@ -1,12 +0,0 @@
|
|||
var main = require("./main");
|
||||
|
||||
exports["test main"] = function(assert) {
|
||||
assert.pass("Unit test running!");
|
||||
};
|
||||
|
||||
exports["test main async"] = function(assert, done) {
|
||||
assert.pass("async Unit test running!");
|
||||
done();
|
||||
};
|
||||
|
||||
require("sdk/test").run(exports);
|
||||
|
|
@ -1,5 +1,5 @@
|
|||
<!DOCTYPE html>
|
||||
<script>console.log("first possible call");</script>
|
||||
<script src="firstPossibleCall.js"></script>
|
||||
<html>
|
||||
<head>
|
||||
<title>Test</title>
|
||||
|
|
@ -18,76 +18,5 @@
|
|||
<iframe sandbox="allow-same-origin" style="display:none"></iframe>
|
||||
<button>refresh</button>
|
||||
</div>
|
||||
<script>
|
||||
(function(){
|
||||
function show(container, url){
|
||||
container.querySelector(".display").src = url;
|
||||
var buffer = new TextEncoder("utf-8").encode(url);
|
||||
crypto.subtle.digest("SHA-256", buffer).then(function(hash){
|
||||
var chunks = [];
|
||||
(new Uint32Array(hash)).forEach(function(num){
|
||||
chunks.push(num.toString(16));
|
||||
});
|
||||
container.querySelector(".hash").textContent = chunks.map(function(chunk){
|
||||
return "0".repeat(8 - chunk.length) + chunk;
|
||||
}).join("");
|
||||
});
|
||||
}
|
||||
|
||||
if (location.search !== "?notInitial"){
|
||||
show(document.getElementById("top"), topTest());
|
||||
show(document.getElementById("iframe"), iframeTest());
|
||||
}
|
||||
document.querySelector("#top button").addEventListener("click", function(){show(document.getElementById("top"), topTest());});
|
||||
document.querySelector("#iframe button").addEventListener("click", function(){show(document.getElementById("iframe"), iframeTest());});
|
||||
}());
|
||||
|
||||
function draw(canvas){
|
||||
canvas.setAttribute("width", 220);
|
||||
canvas.setAttribute("height", 30);
|
||||
|
||||
var fp_text = "BrowserLeaks,com <canvas> 10";
|
||||
|
||||
var ctx = canvas.getContext('2d');
|
||||
ctx.textBaseline = "top";
|
||||
ctx.font = "14px 'Arial'";
|
||||
ctx.textBaseline = "alphabetic";
|
||||
ctx.fillStyle = "#f60";
|
||||
ctx.fillRect(125, 1, 62, 20);
|
||||
ctx.fillStyle = "#069";
|
||||
ctx.fillText(fp_text, 2, 15);
|
||||
ctx.fillStyle = "rgba(102, 204, 0, 07)";
|
||||
ctx.fillText(fp_text, 4, 17);
|
||||
|
||||
return ctx;
|
||||
}
|
||||
|
||||
function topTest(){
|
||||
// create window canvas
|
||||
var canvas = document.createElement('canvas');
|
||||
// draw image in window canvas
|
||||
draw(canvas);
|
||||
return canvas.toDataURL();
|
||||
}
|
||||
|
||||
function iframeTest(){
|
||||
|
||||
// create window canvas
|
||||
var canvas = document.createElement('canvas');
|
||||
|
||||
// draw image in window canvas
|
||||
draw(canvas);
|
||||
|
||||
// create iframe canvas and ctx
|
||||
var iframe_canvas = document.querySelector("#iframe iframe").contentDocument.createElement('canvas');
|
||||
iframe_canvas.setAttribute("width", 220);
|
||||
iframe_canvas.setAttribute("height", 30);
|
||||
var iframe_ctx = iframe_canvas.getContext('2d');
|
||||
|
||||
// copy image from window canvas to iframe ctx
|
||||
iframe_ctx.drawImage(canvas, 0, 0);
|
||||
|
||||
return iframe_canvas.toDataURL();
|
||||
}
|
||||
</script>
|
||||
<script src="test.js"></script>
|
||||
</body></html>
|
||||
|
|
@ -0,0 +1,71 @@
|
|||
|
||||
(function(){
|
||||
function show(container, url){
|
||||
container.querySelector(".display").src = url;
|
||||
var buffer = new TextEncoder("utf-8").encode(url);
|
||||
crypto.subtle.digest("SHA-256", buffer).then(function(hash){
|
||||
var chunks = [];
|
||||
(new Uint32Array(hash)).forEach(function(num){
|
||||
chunks.push(num.toString(16));
|
||||
});
|
||||
container.querySelector(".hash").textContent = chunks.map(function(chunk){
|
||||
return "0".repeat(8 - chunk.length) + chunk;
|
||||
}).join("");
|
||||
});
|
||||
}
|
||||
|
||||
if (location.search !== "?notInitial"){
|
||||
show(document.getElementById("top"), topTest());
|
||||
show(document.getElementById("iframe"), iframeTest());
|
||||
}
|
||||
document.querySelector("#top button").addEventListener("click", function(){show(document.getElementById("top"), topTest());});
|
||||
document.querySelector("#iframe button").addEventListener("click", function(){show(document.getElementById("iframe"), iframeTest());});
|
||||
}());
|
||||
|
||||
function draw(canvas){
|
||||
canvas.setAttribute("width", 220);
|
||||
canvas.setAttribute("height", 30);
|
||||
|
||||
var fp_text = "BrowserLeaks,com <canvas> 10";
|
||||
|
||||
var ctx = canvas.getContext('2d');
|
||||
ctx.textBaseline = "top";
|
||||
ctx.font = "14px 'Arial'";
|
||||
ctx.textBaseline = "alphabetic";
|
||||
ctx.fillStyle = "#f60";
|
||||
ctx.fillRect(125, 1, 62, 20);
|
||||
ctx.fillStyle = "#069";
|
||||
ctx.fillText(fp_text, 2, 15);
|
||||
ctx.fillStyle = "rgba(102, 204, 0, 07)";
|
||||
ctx.fillText(fp_text, 4, 17);
|
||||
|
||||
return ctx;
|
||||
}
|
||||
|
||||
function topTest(){
|
||||
// create window canvas
|
||||
var canvas = document.createElement('canvas');
|
||||
// draw image in window canvas
|
||||
draw(canvas);
|
||||
return canvas.toDataURL();
|
||||
}
|
||||
|
||||
function iframeTest(){
|
||||
|
||||
// create window canvas
|
||||
var canvas = document.createElement('canvas');
|
||||
|
||||
// draw image in window canvas
|
||||
draw(canvas);
|
||||
|
||||
// create iframe canvas and ctx
|
||||
var iframe_canvas = document.querySelector("#iframe iframe").contentDocument.createElement('canvas');
|
||||
iframe_canvas.setAttribute("width", 220);
|
||||
iframe_canvas.setAttribute("height", 30);
|
||||
var iframe_ctx = iframe_canvas.getContext('2d');
|
||||
|
||||
// copy image from window canvas to iframe ctx
|
||||
iframe_ctx.drawImage(canvas, 0, 0);
|
||||
|
||||
return iframe_canvas.toDataURL();
|
||||
}
|
||||
|
|
@ -1,22 +1,11 @@
|
|||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<title>Test</title>
|
||||
<title>webGL test</title>
|
||||
</head>
|
||||
<body>
|
||||
<canvas id="canvas" width="10" height="10"></canvas>
|
||||
<span id="output"></span>
|
||||
<script>
|
||||
(function(){
|
||||
var canvas = document.getElementById('canvas');
|
||||
var gl = canvas.getContext('webgl');
|
||||
var pixels = new Uint8Array(gl.drawingBufferWidth * gl.drawingBufferHeight * 4);
|
||||
gl.readPixels(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight, gl.RGBA, gl.UNSIGNED_BYTE, pixels);
|
||||
var values = [];
|
||||
for (var i = 0; i < pixels.length; i += 1){
|
||||
values[pixels[i]] = (values[pixels[i]] || 0) + 1;
|
||||
}
|
||||
document.getElementById("output").textContent = JSON.stringify(values);
|
||||
}());
|
||||
</script>
|
||||
<h1>webGL test</h1>
|
||||
Checks if the addon also supports webGL.
|
||||
<div id="output"></div>
|
||||
<script src="webGL-Test.js"></script>
|
||||
</body></html>
|
||||
|
|
@ -0,0 +1,18 @@
|
|||
(function(){
|
||||
var canvas = document.createElement('canvas');
|
||||
canvas.width = 11;
|
||||
canvas.height = 13;
|
||||
var gl = canvas.getContext('webgl');
|
||||
|
||||
// paint it completely black
|
||||
gl.clearColor(0, 0, 0, 1);
|
||||
gl.clear(gl.COLOR_BUFFER_BIT);
|
||||
|
||||
var pixels = new Uint8Array(gl.drawingBufferWidth * gl.drawingBufferHeight * 4);
|
||||
gl.readPixels(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight, gl.RGBA, gl.UNSIGNED_BYTE, pixels);
|
||||
var values = {};
|
||||
for (var i = 0; i < pixels.length; i += 1){
|
||||
values[pixels[i]] = (values[pixels[i]] || 0) + 1;
|
||||
}
|
||||
document.getElementById("output").textContent = JSON.stringify(values);
|
||||
}());
|
||||
Loading…
Reference in New Issue