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mirror of https://github.com/kkapsner/CanvasBlocker synced 2024-12-22 21:00:23 +01:00
CanvasBlocker/test/testAPI.js
2020-01-06 15:15:04 +01:00

25 lines
548 B
JavaScript

const testAPI = function(){
"use strict";
function bufferToString(hash){
const chunks = [];
(new Uint32Array(hash)).forEach(function(num){
chunks.push(num.toString(16));
});
return chunks.map(function(chunk){
return "0".repeat(8 - chunk.length) + chunk;
}).join("");
}
return {
hash: async function(input){
const buffer = ((typeof input) === "string")?
new TextEncoder("utf-8").encode(input):
input;
const hash = await crypto.subtle.digest("SHA-256", buffer);
return bufferToString(hash);
}
};
}();