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This minimizes side effects of import/require across the codebase, and lets the caller be responsible of initializing child processeses, as well as other async logic, such as restoring saved battles.
51 lines
1.4 KiB
TypeScript
51 lines
1.4 KiB
TypeScript
/**
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* Verifier process
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* Pokemon Showdown - http://pokemonshowdown.com/
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*
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* This is just an asynchronous implementation of a verifier for a
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* signed key, because Node.js's crypto functions are synchronous,
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* strangely, considering how everything else is asynchronous.
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*
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* I wrote this one day hoping it would help with performance, but
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* I don't think it had any noticeable effect.
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*
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* @license MIT
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*/
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import * as crypto from 'crypto';
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import { QueryProcessManager } from '../lib/process-manager';
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import * as ConfigLoader from './config-loader';
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export const PM = new QueryProcessManager<{ data: string, signature: string }, boolean>(
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'verifier', module, ({ data, signature }) => {
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const verifier = crypto.createVerify(Config.loginserverkeyalgo);
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verifier.update(data);
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let success = false;
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try {
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success = verifier.verify(Config.loginserverpublickey, signature, 'hex');
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} catch {}
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return success;
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}
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);
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export function verify(data: string, signature: string): Promise<boolean> {
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return PM.query({ data, signature });
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}
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if (!PM.isParentProcess) {
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ConfigLoader.ensureLoaded();
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// eslint-disable-next-line no-eval
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PM.startRepl((cmd: string) => eval(cmd));
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}
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export function start(processCount: ConfigLoader.SubProcessesConfig) {
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PM.spawn(processCount['verifier'] ?? 1);
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}
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export function destroy() {
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// No need to destroy the PM under normal circumstances.
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// A potential exception is graceful shutdown.
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void PM.destroy();
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}
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