From 69fe9791dfab26e476cfe07bf13d3501272dcec9 Mon Sep 17 00:00:00 2001
From: ProgrammerIn-wonderland <3838shah@gmail.com>
Date: Mon, 9 Feb 2026 21:40:24 -0800
Subject: [PATCH] add configurable backend

---
 .../src/modules/web/WebServerService.js       |  9 +++++++++
 tools/auth_gui.js                             | 19 +++++++++++++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 tools/auth_gui.js

diff --git a/src/backend/src/modules/web/WebServerService.js b/src/backend/src/modules/web/WebServerService.js
index c932763fd1..26517477a9 100644
--- a/src/backend/src/modules/web/WebServerService.js
+++ b/src/backend/src/modules/web/WebServerService.js
@@ -25,6 +25,8 @@ const config = require('../../config.js');
 var http = require('http');
 const auth = require('../../middleware/auth.js');
 const measure = require('../../middleware/measure.js');
+const yargs = require('yargs/yargs');
+const { hideBin } = require('yargs/helpers');
 
 const relative_require = require;
 
@@ -202,6 +204,13 @@ class WebServerService extends BaseService {
 
         const url = config.origin;
 
+        const args = yargs(hideBin(process.argv)).argv;
+        if ( args['server'] ) {
+            (async () => {
+                (await import('./../../../../../tools/auth_gui.js')).default(args['puter-backend']);
+            })();
+            config.no_browser_launch = true;
+        }
         // Open the browser to the URL of Puter
         // (if we are in development mode only)
         if ( config.env === 'dev' && !config.no_browser_launch ) {
diff --git a/tools/auth_gui.js b/tools/auth_gui.js
new file mode 100644
index 0000000000..5544ba1dc7
--- /dev/null
+++ b/tools/auth_gui.js
@@ -0,0 +1,19 @@
+import open from 'open';
+import http from 'node:http';
+
+export default function (guiOrigin = 'https://puter.com') {
+
+    return new Promise((resolve) => {
+        const requestListener = function (/**@type {IncomingMessage} */ req, res) {
+            res.writeHead(200, { 'Content-Type': 'text/html' });
+            res.end('<script>window.location.href="http://puter.localhost:4100/?api_origin=https://api.puter.com&auth_token=" + new URL(location.href).searchParams.get("token") </script>');
+
+            resolve(new URL(req.url, 'http://localhost/').searchParams.get('token'));
+        };
+        const server = http.createServer(requestListener);
+        server.listen(0, function () {
+            const url = `${guiOrigin}/?action=authme&redirectURL=${encodeURIComponent('http://localhost:') + this.address().port}`;
+            open(url);
+        });
+    });
+};