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Remove crypto.subtle requirement

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This commit is contained in:
Philipp Heckel 2022-03-12 08:15:30 -05:00
parent 4a6aca4c07
commit 3699464947
2 changed files with 13 additions and 9 deletions
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13
web/src/app/utils.js
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@ -115,10 +115,15 @@ export const shuffle = (arr) => {
return arr;
}
// https://jameshfisher.com/2017/10/30/web-cryptography-api-hello-world/
export const sha256 = async (s) => {
const buf = await crypto.subtle.digest("SHA-256", new TextEncoder("utf-8").encode(s));
return Array.prototype.map.call(new Uint8Array(buf), x=>(('00'+x.toString(16)).slice(-2))).join('');
/** Non-cryptographic hash function, see https://stackoverflow.com/a/8831937/1440785 */
export const hashCode = async (s) => {
let hash = 0;
for (let i = 0; i < s.length; i++) {
const char = s.charCodeAt(i);
hash = ((hash<<5)-hash)+char;
hash = hash & hash; // Convert to 32bit integer
}
return hash;
}
export const formatShortDateTime = (timestamp) => {