zumbiepig/MineXLauncher
zumbiepig/MineXLauncher
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zumbiepig 2024-09-13 16:51:25 -07:00
parent 417c0b8970
commit 4af6c8e303
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1 changed files with 16 additions and 8 deletions
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24
proxy/proxy.ts
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@ -3,11 +3,12 @@ import https from 'https';
import express from 'express'; import express from 'express';
import morgan from 'morgan'; import morgan from 'morgan';
const PROXY_HOSTNAME = 'launcher.orionzleon.me'; if (Number(process.env['CACHE_MINUTES'] ?? 10) < 5)
const CACHE_LIFETIME = 1000 * 60 * 10; // 10 minutes process.env['CACHE_MINUTES'] = '5';
const MAX_CACHE_SIZE = 1024 * 1024 * 1024 * 0.5; // 0.5 GiB
const PORT = process.env['PORT'] ?? 3000; const PORT = process.env['PORT'] ?? 3000;
const CACHE_MINUTES = process.env['CACHE_MINUTES'] ?? 10;
const CACHE_SIZE = process.env['CACHE_SIZE'] ?? 0.5;
const cache = new Map< const cache = new Map<
string, string,
@ -18,7 +19,10 @@ const cache = new Map<
data: Buffer; data: Buffer;
} }
>(); >();
const maxCacheSize = 1024 * 1024 * 1024 * Number(CACHE_SIZE);
let cacheSize = 0; let cacheSize = 0;
const cacheLifetime = 1000 * 60 * Number(CACHE_MINUTES);
const proxyHostname = 'launcher.orionzleon.me';
const requestCounter = new Map<string, number>(); const requestCounter = new Map<string, number>();
const app = express(); const app = express();
@ -28,7 +32,7 @@ app.use(morgan(':method :url :status - :response-time ms'));
app.use((req, res) => { app.use((req, res) => {
if (req.method === 'GET' && cache.has(req.url)) { if (req.method === 'GET' && cache.has(req.url)) {
const cached = cache.get(req.url); const cached = cache.get(req.url);
if (cached && Date.now() - cached.lastFetched < CACHE_LIFETIME) { if (cached && Date.now() - cached.lastFetched < cacheLifetime) {
requestCounter.set(req.url, (requestCounter.get(req.url) ?? 0) + 1); requestCounter.set(req.url, (requestCounter.get(req.url) ?? 0) + 1);
res.writeHead(cached.statusCode, cached.headers).end(cached.data); res.writeHead(cached.statusCode, cached.headers).end(cached.data);
return; return;
@ -37,7 +41,7 @@ app.use((req, res) => {
const proxyReq = https.request( const proxyReq = https.request(
{ {
hostname: PROXY_HOSTNAME, hostname: proxyHostname,
path: req.url, path: req.url,
method: req.method, method: req.method,
}, },
@ -63,13 +67,13 @@ app.use((req, res) => {
requestCounter.set(req.url, (requestCounter.get(req.url) ?? 0) + 1); requestCounter.set(req.url, (requestCounter.get(req.url) ?? 0) + 1);
cacheSize += responseData.length; cacheSize += responseData.length;
if (cacheSize > MAX_CACHE_SIZE) { if (cacheSize > maxCacheSize) {
const keys = Array.from(cache.keys()); const keys = Array.from(cache.keys());
keys.sort( keys.sort(
(a, b) => (a, b) =>
(requestCounter.get(a) ?? 0) - (requestCounter.get(b) ?? 0), (requestCounter.get(a) ?? 0) - (requestCounter.get(b) ?? 0),
); );
while (cacheSize > MAX_CACHE_SIZE && keys.length > 0) { while (cacheSize > maxCacheSize && keys.length > 0) {
const key = keys.shift(); const key = keys.shift();
if (key) { if (key) {
const cached = cache.get(key); const cached = cache.get(key);
@ -96,4 +100,8 @@ app.use((req, res) => {
proxyReq.end(); proxyReq.end();
}); });
app.listen(PORT, () => console.log(`Server running on port ${PORT}.\nYou can change the port with \`PORT=1234 ./path/to/executable\`.\n\nThis program may use up to 500 MB of RAM.`)); app.listen(PORT, () =>
console.log(
`Server running on http://localhost:${PORT}/\n\nConfiguration:\n Maximum memory usage: ${CACHE_SIZE} GiB\n Cache TTL: ${CACHE_MINUTES} minutes`,
),
);