security-and-privacy/CanvasBlocker
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Test audio protection with iframe

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This commit is contained in:
kkapsner 2019-05-22 23:55:57 +02:00
parent 67fa723a32
commit f72f8f67ae
1 changed files with 13 additions and 0 deletions
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13
test/audioTest.js
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@ -95,6 +95,15 @@
displayData(emptyCopy2, "empty buffer", "copyFromChannel - second"); displayData(emptyCopy2, "empty buffer", "copyFromChannel - second");
} }
function getIframeWindow(){
var l = window.length;
var iframe = document.createElement("iframe");
document.body.appendChild(iframe);
const iframeWindow = window[l];
document.body.removeChild(iframe);
return iframeWindow;
}
function createHashData(frequency = 1e4){ function createHashData(frequency = 1e4){
var context = getAudioContext(frequency); var context = getAudioContext(frequency);
@ -105,6 +114,10 @@
// Start audio processing // Start audio processing
context.startRendering(); context.startRendering();
context.oncomplete = function(event){ context.oncomplete = function(event){
var copyTestIframe = new (getIframeWindow().Float32Array)(44100);
getIframeWindow().AudioBuffer.prototype.copyFromChannel.call(event.renderedBuffer, copyTestIframe, 0);
displayData(copyTestIframe, setName, "copyFromChannel - iframe");
var chunkTest = new Float32Array(44100); var chunkTest = new Float32Array(44100);
var number = new Float32Array(100); var number = new Float32Array(100);
for (var chunkI = 0; chunkI < 44100; chunkI += number.length){ for (var chunkI = 0; chunkI < 44100; chunkI += number.length){