47 lines
1.3 KiB
TypeScript
47 lines
1.3 KiB
TypeScript
/*
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* mCaptcha is a PoW based DoS protection software.
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* This is the frontend web component of the mCaptcha system
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* Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
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*
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* Use of this source code is governed by Apache 2.0 or MIT license.
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* You shoud have received a copy of MIT and Apache 2.0 along with
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* this program. If not, see <https://spdx.org/licenses/MIT.html> for
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* MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
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*/
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import {gen_pow} from 'mcaptcha-browser';
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import {Perf} from './types';
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type PoWConfig = {
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string: string;
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difficulty_factor: number;
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salt: string;
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};
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const SALT = '674243647f1c355da8607a8cdda05120d79ca5d1af8b3b49359d056a0a82';
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const PHRASE = '6e2a53dbc7d307970d7ba3c0000221722cb74f1c325137251ce8fa5c2240';
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const config: PoWConfig = {
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string: PHRASE,
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difficulty_factor: 1,
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salt: SALT,
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};
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console.debug('worker registered');
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onmessage = function(event) {
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console.debug('message received at worker');
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let difficulty_factor = parseInt(event.data);
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config.difficulty_factor = difficulty_factor;
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const t0 = performance.now();
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gen_pow(config.salt, config.string, config.difficulty_factor);
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const t1 = performance.now();
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const time = t1 - t0;
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let msg: Perf = {
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difficulty: difficulty_factor,
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time: time,
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};
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postMessage(msg);
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};
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