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ass/backend/app.ts

135 lines
4.0 KiB

import express, { Request, Response, NextFunction, RequestHandler, json as BodyParserJson } from 'express';
import fs from 'fs-extra';
import { path, isProd } from '@tycrek/joint';
import { epcss } from '@tycrek/express-postcss';
import tailwindcss from 'tailwindcss';
import { log } from './log';
import { ensureFiles } from './data';
import { UserConfig } from './UserConfig';
import { ServerConfiguration } from 'ass';
import { MySql } from './sql/mysql';
/**
* Top-level metadata exports
*/
export const App = {
pkgVersion: ''
}
/**
* Custom middleware to attach the ass object (and construct the `host` property)
*/
function assMetaMiddleware(port: number, proxied: boolean): RequestHandler {
return (req: Request, _res: Response, next: NextFunction) => {
req.ass = { host: `${req.protocol}://${req.hostname}${proxied ? '' : `:${port}`}` };
next();
}
}
/**
* Main function.
* Yes I'm using main() in TS, cry about it
*/
async function main() {
// Launch log
const pkg = await fs.readJson(path.join('package.json')) as { name: string, version: string };
log.blank().info(pkg.name, pkg.version).blank();
App.pkgVersion = pkg.version;
// Ensure data files exist
await ensureFiles();
// Set default server configuration
const serverConfig: ServerConfiguration = {
host: '0.0.0.0',
port: 40115,
proxied: isProd()
};
// Replace with user details, if necessary
try {
const exists = await fs.pathExists(path.join('server.json'));
if (exists) {
// Read file
const { host, port, proxied } = await fs.readJson(path.join('server.json')) as { host?: string, port?: number, proxied?: boolean };
// Set details, if available
if (host) serverConfig.host = host;
if (port) serverConfig.port = port;
if (proxied != undefined) serverConfig.proxied = proxied;
log.debug('server.json', `${host ? `host=${host},` : ''}${port ? `port=${port},` : ''}${proxied != undefined ? `proxied=${proxied},` : ''}`);
}
} catch (err) {
log.error('Failed to read server.json');
console.error(err);
throw err;
}
// Attempt to load user configuration
await new Promise((resolve) => UserConfig.readConfigFile().then(() => resolve(void 0))
.catch((err) => (err.code && err.code === 'ENOENT' ? {} : console.error(err), resolve(void 0))));
// If user config is ready, try to configure SQL
if (UserConfig.ready && UserConfig.config.sql?.mySql != null)
try { await MySql.configure(); }
catch (err) { throw new Error(`Failed to configure SQL`); }
// Set up Express
const app = express();
app.enable('case sensitive routing');
app.disable('x-powered-by');
app.set('trust proxy', serverConfig.proxied);
app.set('view engine', 'pug');
app.set('views', 'views2/');
// Middleware
app.use(log.express());
app.use(BodyParserJson());
app.use(assMetaMiddleware(serverConfig.port, serverConfig.proxied));
// Favicon
app.use('/favicon.ico', (req, res) => res.redirect('https://i.tycrek.dev/ass'));
// CSS
app.use('/.css', epcss({
cssPath: path.join('tailwind2.css'),
plugins: [
tailwindcss,
(await import('autoprefixer')).default(),
(await import('cssnano')).default(),
(await import('@tinycreek/postcss-font-magician')).default(),
],
warn: (warning: Error) => log.warn('PostCSS', warning.toString())
}));
app.get('/.ass.host', (req, res) => res.send(req.ass.host));
// Routing
app.use('/setup', (await import('./routers/setup')).router);
app.use('/api', (await import('./routers/api')).router);
app.use('/', (await import('./routers/index')).router);
// Host app
app.listen(serverConfig.port, serverConfig.host, () => log[UserConfig.ready ? 'success' : 'warn']('Server listening', UserConfig.ready ? 'Ready for uploads' : 'Setup required', `click http://127.0.0.1:${serverConfig.port}`));
}
// Start program
main().catch((err) => (console.error(err), process.exit(1)));
// Exit tasks
['SIGINT', 'SIGTERM'].forEach((signal) => process.addListener(signal as any, () => {
// Hide ^C in console output
process.stdout.write('\r');
// Log then exit
log.info('Exiting', `received ${signal}`);
process.exit();
}));