75 lines
3.2 KiB
JavaScript
75 lines
3.2 KiB
JavaScript
// server/http/boot.js — running the server as a process (`node server/index.js`, npm start, scripts/launch.mjs):
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//
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// * the boot banner: release version, the Local URL, the LAN URLs when listening on every interface, the
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// cloudflared command for internet play;
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// * a server that cannot start exits 1 (with a hint when the port is in use); unhandled rejections and uncaught
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// exceptions are logged, not fatal;
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// * graceful shutdown on SIGINT/SIGTERM (rooms get room.closed{reason:'shutdown'}, sockets close 1001); a second
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// signal exits at once, and the process exits anyway 5 s after the first.
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import fs from 'node:fs';
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import os from 'node:os';
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import { fileURLToPath } from 'node:url';
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import { APP_VERSION, DEV_BUILD } from '../../shared/constants.js';
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/** Non-internal IPv4 addresses as http URLs. @param {number} port */
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export function lanUrls(port) {
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const out = [];
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for (const addrs of Object.values(os.networkInterfaces())) {
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for (const a of addrs || []) {
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if ((a.family === 'IPv4' || a.family === 4) && !a.internal) out.push(`http://${a.address}:${port}`);
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}
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}
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return out;
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}
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/** Is the module whose `import.meta.url` is `metaUrl` the file node was started with? */
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export function isProcessEntry(metaUrl) {
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if (!process.argv[1]) return false;
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try {
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return fs.realpathSync(process.argv[1]) === fs.realpathSync(fileURLToPath(metaUrl));
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} catch {
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return false;
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}
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}
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/** Print the boot banner of a started server. @param {{ url: string, host: string, port: number }} srv */
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export function printBanner(srv) {
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console.log(`\n 卫戍协议：盟约 · Stronghold Protocol: Alliance v${APP_VERSION}`);
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if (DEV_BUILD) console.log(' ! 开发版（dev 分支）：不稳定，请勿用于公开服务器 · development build — unstable, not for public servers');
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console.log(` Local: ${srv.url}`);
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if (srv.host === '0.0.0.0' || srv.host === '::') {
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for (const u of lanUrls(srv.port)) console.log(` LAN: ${u}`);
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}
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console.log(' Internet: cloudflared tunnel --url ' + `http://localhost:${srv.port}` + '\n');
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}
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/**
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* The process main: start the server, print the banner, stop gracefully on SIGINT / SIGTERM.
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* @param {() => Promise<{ url: string, host: string, port: number, close: () => Promise<void> }>} start index.js startServer
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*/
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export async function runMain(start) {
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process.on('unhandledRejection', (e) => console.error('[process] unhandled rejection', e));
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process.on('uncaughtException', (e) => console.error('[process] uncaught exception', e));
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let srv;
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try {
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srv = await start();
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} catch (e) {
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if (e && e.code === 'EADDRINUSE') console.error(`端口已被占用 / port in use: ${e.port ?? process.env.PORT ?? 3000}. Try PORT=3001 npm start`);
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else console.error('[boot] failed to start', e);
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process.exit(1);
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}
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printBanner(srv);
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let stopping = false;
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const stop = (signal) => {
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if (stopping) { console.log('forced exit'); process.exit(1); }
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stopping = true;
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console.log(`\n[${signal}] shutting down…`);
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setTimeout(() => process.exit(0), 5000).unref();
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srv.close().then(() => process.exit(0), () => process.exit(1));
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};
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process.on('SIGINT', () => stop('SIGINT'));
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process.on('SIGTERM', () => stop('SIGTERM'));
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}
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