security-and-privacy/CanvasBlocker
security-and-privacy/CanvasBlocker
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Linting of .tools and test

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This commit is contained in:
kkapsner 2019-11-30 02:05:37 +01:00
parent aef6bd3d59
commit 17349dcb05
19 changed files with 333 additions and 173 deletions
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79
test/sendFingerprintTest.html
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@ -52,8 +52,10 @@
ctx.stroke();
return ctx.isPointInPath(30, 19);
};
}
function hashToString(hash){
"use strict";
var chunks = [];
(new Uint32Array(hash)).forEach(function(num){
chunks.push(num.toString(16));
@ -63,42 +65,49 @@
}).join("");
}
function send(form, {url, imageData, isPointInPath}){
var buffer = new TextEncoder("utf-8").encode(url);
Promise.all([
crypto.subtle.digest("SHA-256", buffer),
crypto.subtle.digest("SHA-256", imageData.data)
]).then(function(hashes){
var data = JSON.stringify({
urlHash: hashToString(hashes[0]),
imageDataHash: hashToString(hashes[1]),
isPointInPath
}, null, "\t");
form.fingerprint.value = data;
var xhr = new XMLHttpRequest();
xhr.open("POST", form.action, true);
xhr.onreadystatechange = function(){
if (this.readyState === 4){
const status = this.status;
if (status === 200 || status === 304) {
console.log("Sending xhr successful from", origin, ":", data);
var send = function(){
"use strict";
return function send(form, {url, imageData, isPointInPath}){
var buffer = new TextEncoder("utf-8").encode(url);
return Promise.all([
crypto.subtle.digest("SHA-256", buffer),
crypto.subtle.digest("SHA-256", imageData.data)
]).then(function(hashes){
var data = JSON.stringify({
urlHash: hashToString(hashes[0]),
imageDataHash: hashToString(hashes[1]),
isPointInPath
}, null, "\t");
form.fingerprint.value = data;
var xhr = new XMLHttpRequest();
xhr.open("POST", form.action, true);
xhr.onreadystatechange = function(){
if (this.readyState === 4){
const status = this.status;
if (status === 200 || status === 304) {
console.log("Sending xhr successful from", origin, ":", data);
}
else {
console.log("Sending xhr failed:", this);
}
}
else {
console.log("Sending xhr failed:", this);
}
}
};
xhr.send(new FormData(form));
window.setTimeout(function(){
form.submit();
};
xhr.send(new FormData(form));
window.setTimeout(function(){
document.getElementById("log").textContent = "You see the real canvas fingerprint, but it cannot leak from this iFrame.";
},
250
);
}, 1000);
});
}
form.submit();
window.setTimeout(
function(){
document.getElementById("log").textContent =
"You see the real canvas fingerprint, but it cannot leak from this iFrame.";
},
250
);
}, 1000);
return;
});
};
}();
send(document.getElementById("form"), topTest());
</script>