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add software version of sha256

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Signed-off-by: Vladimir Mandic <mandic00@live.com>
This commit is contained in:
Vladimir Mandic
2026-02-12 11:34:28 +00:00
parent c25c35ebb3
commit 63c5e493be
3 changed files with 420 additions and 6 deletions
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javascript/gallery.js
+10 -6
View File
@@ -432,7 +432,8 @@ class GalleryFile extends HTMLElement {
}
}
this.hash = await getHash(`${this.src}/${this.size}/${this.mtime}`); // eslint-disable-line no-use-before-define
this.hash = await getHash(`${this.src}/${this.size}/${this.mtime}`); // eslint-disable-line
console.log('CREATE HASH', this.hash, `${this.src}/${this.size}/${this.mtime}`);
const cachedData = (this.hash && opts.browser_cache) ? await idbGet(this.hash).catch(() => undefined) : undefined;
const img = document.createElement('img');
img.className = 'gallery-file';
@@ -642,15 +643,18 @@ async function addSeparators() {
const gallerySendImage = (_images) => [currentImage]; // invoked by gradio button
async function getHash(str, algo = 'SHA-256') {
async function getHash(str) {
try {
let hex = '';
const strBuf = new TextEncoder().encode(str);
const hash = await crypto.subtle.digest(algo, strBuf);
const view = new DataView(hash);
for (let i = 0; i < hash.byteLength; i += 4) hex += (`00000000${view.getUint32(i).toString(16)}`).slice(-8);
let hashBuf;
if (crypto?.subtle?.digest) hashBuf = await crypto.subtle.digest('SHA-256', strBuf);
else hashBuf = await hash(strBuf).buffer; // from sha256.js
const view = new DataView(hashBuf);
for (let i = 0; i < hashBuf.byteLength; i += 4) hex += (`00000000${view.getUint32(i).toString(16)}`).slice(-8);
return hex;
} catch {
} catch (err) {
error('getHash:', err);
return undefined;
}
}