[chore] remove nollamas middleware for now (after discussions with a security advisor) (#4433)

i'll keep this on a separate branch for now while i experiment with other possible alternatives, but for now both our hacky implementation especially, and more popular ones (like anubis) aren't looking too great on the deterrent front: https://github.com/eternal-flame-AD/pow-buster

Co-authored-by: tobi <tobi.smethurst@protonmail.com>
Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4433
Co-authored-by: kim <grufwub@gmail.com>
Co-committed-by: kim <grufwub@gmail.com>

1 files changed, 0 insertions, 56 deletions

diff --git a/web/source/nollamasworker/index.js b/web/source/nollamasworker/index.js
deleted file mode 100644
index 0a7711ce1..000000000
--- a/web/source/nollamasworker/index.js
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
-	GoToSocial
-	Copyright (C) GoToSocial Authors admin@gotosocial.org
-	SPDX-License-Identifier: AGPL-3.0-or-later
-
-	This program is free software: you can redistribute it and/or modify
-	it under the terms of the GNU Affero General Public License as published by
-	the Free Software Foundation, either version 3 of the License, or
-	(at your option) any later version.
-
-	This program is distributed in the hope that it will be useful,
-	but WITHOUT ANY WARRANTY; without even the implied warranty of
-	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-	GNU Affero General Public License for more details.
-
-	You should have received a copy of the GNU Affero General Public License
-	along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-import sha256 from "./sha256";
-
-let compute = async function(seedStr, challengeStr, start, iter) {
-	const textEncoder = new TextEncoder();
-
-	let nonce = start;
-	while (true) { // eslint-disable-line no-constant-condition
-
-		// Create possible solution string from challenge string + nonce.
-		const solution = textEncoder.encode(seedStr + nonce.toString());
-
-		// Generate hex encoded SHA256 hashsum of solution.
-		const hashArray = Array.from(sha256(solution));
-		const hashAsHex = hashArray.map(b => b.toString(16).padStart(2, "0")).join("");
-
-		// Check whether hex encoded
-		// solution matches challenge.
-		if (hashAsHex == challengeStr) {
-			return nonce;
-		}
-
-		// Iter nonce.
-		nonce += iter;
-	}
-};
-
-onmessage = async function(e) {
-	const thread = e.data.thread;
-	const threads = e.data.threads;
-	console.log("worker started:", thread); // eslint-disable-line no-console
-
-	// Compute nonce value that produces 'challenge', for our allotted thread.
-	let nonce = await compute(e.data.seed, e.data.challenge, thread, threads);
-
-	// Post the solution nonce back to caller with thread no.
-	postMessage({ nonce: nonce, done: true, thread: thread });
-};