Expose Fedatrion port (#3974)

* Add

* Phase 1

* Add

* Add

* Update index.ts

* Add

* Last fix

* Remove

* Update shiinobi.ts

* Update index.ts

* Add

seeder/package.json

@@ -23,7 +23,8 @@
 		"@electron-toolkit/utils": "^3.0.0",
 		"cors": "^2.8.5",
 		"electron-updater": "^6.1.7",
-		"express": "^4.19.2"
+		"express": "^4.19.2",
+		"local-devices": "^4.0.0"
 	},
 	"devDependencies": {
 		"@coreproject-moe/icons": "^0.0.13",

seeder/src/main/backend/index.ts

@@ -10,4 +10,8 @@ app.get("/", (_, res) => {
 	res.send("Hello World!");
 });
 
+app.get("/shiinobi-healthcheck", (_, res) => {
+	res.send("We are friends");
+});
+
 export { app };

seeder/src/main/utils/port.ts

@@ -1,11 +1,40 @@
 import net, { AddressInfo } from "node:net";
+import find from "local-devices";
+
+// Range : 49152 – 65535
+const PORT_START = 49152,
+	PORT_END = 65535;
 
 export function get_free_port() {
-	return new Promise((resolve) => {
+	return new Promise((resolve, reject) => {
 		const server = net.createServer();
-		server.listen(0, () => {
-			const port = (server.address() as AddressInfo)?.port; // Default to 0 if address is not AddressInfo
+		let port = Math.floor(Math.random() * (PORT_START - PORT_END + 1)) + PORT_START;
+
+		// Try to listen on a random port within the range
+		server.listen(port, () => {
+			port = (server.address() as AddressInfo)?.port;
 			server.close(() => resolve(port));
 		});
+
+		// Handle errors (e.g., port already in use)
+		server.on("error", () => {
+			// Retry with another port if the current one is unavailable
+			get_free_port().then(resolve).catch(reject);
+		});
 	});
 }
+export async function get_all_devices_running_shiinobi() {
+	let friends = new Array<string>();
+	const devices = await find();
+
+	for (const device of devices) {
+		for (let i = PORT_START; i < PORT_END; i++) {
+			const URL = `https://${device.ip}/shiinobi-healthcheck`;
+			const res = await fetch(URL);
+			const text = await res.text();
+			if (text === "We are friends") {
+				friends.push(device.ip);
+			}
+		}
+	}
+}