security-and-privacy/CanvasBlocker
security-and-privacy/CanvasBlocker
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Added test for blob, offscreen canvas and offscreen canvas in workers

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This commit is contained in:
kkapsner 2020-05-19 10:48:08 +02:00
parent 7c2a4edde0
commit a79c4ec8c5
4 changed files with 119 additions and 7 deletions
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56
test/test.js
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@ -8,12 +8,14 @@
display.title = url;
const hashes = await Promise.all([
testAPI.hash(url),
testAPI.hash(imageData.data)
imageData? testAPI.hash(imageData.data): ""
]);
container.querySelector(".hash").textContent =
hashes[0] + " / " +
hashes[1];
container.querySelector(".isPointInPath").textContent = isPointInPath;
if (typeof isPointInPath === "boolean"){
container.querySelector(".isPointInPath").textContent = isPointInPath;
}
}
function iframeTest(testNode){
@ -51,15 +53,47 @@
newWindow.close();
return fingerprint;
}
}
},
blob: async function(testNode){
const canvas = document.createElement("canvas");
canvasAPI.draw(canvas);
return new Promise(function(resolve, reject){
canvas.toBlob(async function(blob){
resolve({url: await testAPI.readBlob(blob)});
});
});
},
offscreen: async function(testNode){
if (typeof OffscreenCanvas === "undefined"){
throw "not supported";
}
return offscreenTest();
},
offscreenWorker: async function(testNode){
if (
typeof OffscreenCanvas === "undefined" ||
typeof Worker === "undefined"
){
throw "not supported";
}
const canvasAPIUrl = new URL("./canvasAPI.js", location);
const testAPIUrl = new URL("./testAPI.js", location);
return testAPI.runInWorker(offscreenTest, [], [canvasAPIUrl, testAPIUrl]);
},
};
Object.keys(tests).forEach(async function(testName){
const testNode = document.getElementById(testName);
const callback = tests[testName];
if (location.search !== "?notInitial"){
try {show(testNode, await callback(testNode, true));}
catch (error){console.error(testName, error);}
try {
show(testNode, await callback(testNode, true));
}
catch (error){
testNode.querySelector(".hash").innerHTML =
"<i>Error while computing: " + (error.message || error) + "</i>";
console.error(testName, error);
}
}
testNode.querySelector("button").addEventListener("click", async function(){
show(testNode, await callback(testNode));
@ -99,4 +133,16 @@ function dynamicIframeTest3(){
const iframeWindow = window[length];
document.body.removeChild(div);
return canvasAPI.fingerprint(iframeWindow);
}
async function offscreenTest(){
"use strict";
const offscreenCanvas = new OffscreenCanvas(220, 30);
canvasAPI.draw(offscreenCanvas);
const blob = offscreenCanvas.convertToBlob?
await offscreenCanvas.convertToBlob():
await offscreenCanvas.toBlob();
return {url: await testAPI.readBlob(blob)};
}