From b9c756f442b528f9c9d5e4b83404d08c72c9872e Mon Sep 17 00:00:00 2001
From: Rin <ry00001@protonmail.com>
Date: Sun, 17 Jul 2022 15:14:23 +0100
Subject: [PATCH] Add setuid/setgid

---
 src/config.ts | 6 ++++++
 src/index.ts  | 9 +++++++++
 2 files changed, 15 insertions(+)

diff --git a/src/config.ts b/src/config.ts
index 702e3c9..fd9821f 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -6,6 +6,12 @@ export interface ConfigFile {
     regionName: string;
     serverIp?: string;
     gameOptions: GameOptions;
+    unix?: UnixOptions;
+}
+
+export interface UnixOptions {
+    setuid: number;
+    setgid: number;
 }
 
 export interface GameOptions {
diff --git a/src/index.ts b/src/index.ts
index bfcc824..d844c04 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -9,6 +9,8 @@ import fs from 'fs';
 import bodyParser from 'body-parser';
 import AllnetModule from './allnet';
 import MuchaModule from './mucha';
+import { Config } from './config';
+import process from 'process';
 globalAgent.options.keepAlive = true;
 
 // @ts-ignore
@@ -70,6 +72,13 @@ let cert = fs.readFileSync('./server_wangan.crt');
 
 http.createServer(allnetApp).listen(PORT_ALLNET, '0.0.0.0', 511, () => {
     console.log(`ALL.net server listening on port ${PORT_ALLNET}!`);
+    let unix = Config.getConfig().unix;
+    if (unix && process.platform == 'linux') {
+        console.log('Downgrading permissions...');
+        process.setuid!(unix.setuid);
+        process.setgid!(unix.setgid);
+        console.log('Done!');
+    }
 })
 
 https.createServer({key, cert}, muchaApp).listen(PORT_MUCHA, '0.0.0.0', 511, () => {