Cavemanon/haproxy-protection
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Ability to choose between sha256 or argon2 with env var close #21

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This commit is contained in:
Thomas Lynch
2023-02-11 23:38:59 +11:00
parent 2089d790a2
commit f231b86544
7 changed files with 76 additions and 49 deletions
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37
src/js/challenge.js
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@ -81,7 +81,7 @@ const powFinished = new Promise(resolve => {
window.addEventListener('DOMContentLoaded', async () => {
const { time, kb, pow, diff } = document.querySelector('[data-pow]').dataset;
const { time, kb, pow, diff, mode } = document.querySelector('[data-pow]').dataset;
window.addEventListener('storage', event => {
if (event.key === 'basedflare-pow-response' && !finished) {
console.log('Got answer', event.newValue, 'from storage event');
@ -94,14 +94,15 @@ const powFinished = new Promise(resolve => {
});
if (!wasmSupported) {
return insertError('browser does not support WebAssembly.');
return insertError('Browser does not support WebAssembly.');
}
const argonOpts = {
const powOpts = {
time: time,
mem: kb,
hashLen: 32,
parallelism: 1,
type: argon2.ArgonType.Argon2id,
type: argon2 ? argon2.ArgonType.Argon2id : null,
mode: mode,
};
console.log('Got pow', pow, 'with difficulty', diff);
const eHashes = Math.pow(16, Math.floor(diff/8)) * ((diff%8)*2);
@ -128,34 +129,16 @@ const powFinished = new Promise(resolve => {
submitPow(`${pow}#${answer}`);
}
for (let i = 0; i < workerThreads; i++) {
const argonWorker = new Worker('/.basedflare/js/worker.js');
argonWorker.onmessage = messageHandler;
workers.push(argonWorker);
const powWorker = new Worker('/.basedflare/js/worker.js');
powWorker.onmessage = messageHandler;
workers.push(powWorker);
}
for (let i = 0; i < workerThreads; i++) {
await new Promise(res => setTimeout(res, 10));
workers[i].postMessage([userkey, challenge, diff, diffString, argonOpts, i, workerThreads]);
workers[i].postMessage([userkey, challenge, diff, diffString, powOpts, i, workerThreads]);
}
} else {
//TODO: remove this section, it _will_ cause problems
console.warn('No webworker support, running in main/UI thread!');
let i = 0;
const start = Date.now();
while(true) {
const hash = await argon2.hash({
pass: challenge + i.toString(),
salt: userkey,
...argonOpts,
});
if (hash.hashHex.startsWith(diffString)
&& ((parseInt(hash.hashHex[diffString.length],16) &
0xff >> (((diffString.length+1)*8)-diff)) === 0)) {
console.log('Main thread found solution:', hash.hashHex, 'in', (Date.now()-start)+'ms');
break;
}
++i;
}
submitPow(`${pow}#${i}`);
return insertError('Browser does not support Web Workers.');
}
});
}).then((powResponse) => {