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[chore] more NoLLaMas proof-of-work tweaking (#4096)

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- replaces the sha256 calculation with an alternative implementation that seems to use more uniform time-taken across different platforms
- goes back to the simpler difficulty calculation without a "partial" difficulty level

Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4096
Co-authored-by: kim <grufwub@gmail.com>
Co-committed-by: kim <grufwub@gmail.com>
This commit is contained in:
kim
2025-05-03 16:45:25 +00:00
committed by kim
parent c15002d76e
commit 211192c482
7 changed files with 184 additions and 113 deletions
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24
web/source/nollamas/index.js
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@@ -19,7 +19,7 @@
const explanation = "Your browser is currently solving a proof-of-work challenge designed to deter \"ai\" scrapers. This should take no more than a few seconds...";
document.addEventListener('DOMContentLoaded', function() {
document.addEventListener("DOMContentLoaded", function() {
// Get the nollamas section container.
const nollamas = document.querySelector(".nollamas");
@@ -44,20 +44,17 @@ document.addEventListener('DOMContentLoaded', function() {
// Read the challenge and difficulty from
// data attributes on the nollamas section.
const challenge = nollamas.dataset.nollamasChallenge;
const difficulty1 = nollamas.dataset.nollamasDifficulty1;
const difficulty2 = nollamas.dataset.nollamasDifficulty2;
const difficulty = nollamas.dataset.nollamasDifficulty;
console.log('challenge:', challenge); // eslint-disable-line no-console
console.log('difficulty1:', difficulty1); // eslint-disable-line no-console
console.log('difficulty2:', difficulty2); // eslint-disable-line no-console
console.log("challenge:", challenge); // eslint-disable-line no-console
console.log("difficulty:", difficulty); // eslint-disable-line no-console
// Prepare the worker with task function.
const worker = new Worker("/assets/dist/nollamasworker.js");
const startTime = performance.now();
worker.postMessage({
challenge: challenge,
difficulty1: difficulty1,
difficulty2: difficulty2,
difficulty: difficulty,
});
// Set the main worker function.
@@ -65,13 +62,13 @@ document.addEventListener('DOMContentLoaded', function() {
if (e.data.done) {
const endTime = performance.now();
const duration = endTime - startTime;
// Remove spinner and replace it with a tick
// and info about how long it took to solve.
nollamas.removeChild(spinner);
const solutionWrapper = document.createElement("div");
solutionWrapper.className = "nollamas-status";
const tick = document.createElement("i");
tick.className = "fa fa-check fa-2x fa-fw";
tick.setAttribute("title","Solved!");
@@ -79,17 +76,18 @@ document.addEventListener('DOMContentLoaded', function() {
solutionWrapper.appendChild(tick);
const took = document.createElement("span");
took.appendChild(document.createTextNode(`Solved in ${duration.toString()}ms!`));
const solvedText = `Solved after ${e.data.nonce} iterations, in ${duration.toString()}ms!`;
took.appendChild(document.createTextNode(solvedText));
solutionWrapper.appendChild(took);
nollamas.appendChild(solutionWrapper);
// Wait for 500ms before redirecting, to give
// visitors a shot at reading the message, but
// not so long that they have to wait unduly.
setTimeout(() => {
let url = new URL(window.location.href);
url.searchParams.set('nollamas_solution', e.data.nonce);
url.searchParams.set("nollamas_solution", e.data.nonce);
window.location.replace(url.toString());
}, 500);
}