From 5b835076f0dcba01d3281b932572cc9a008443a7 Mon Sep 17 00:00:00 2001
From: Minjae Gwon <beta.underalpha@gmail.com>
Date: Thu, 7 Dec 2023 22:50:14 +0900
Subject: [PATCH] fix: ensure that hooks return non-loopback address

---
 utils/src/main/scala/Hooks.scala | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/utils/src/main/scala/Hooks.scala b/utils/src/main/scala/Hooks.scala
index f4e4020..2700643 100644
--- a/utils/src/main/scala/Hooks.scala
+++ b/utils/src/main/scala/Hooks.scala
@@ -1,12 +1,22 @@
 package kr.ac.postech.paranode.utils
 
-import java.net.InetAddress
+import java.net.Inet4Address
+import java.net.NetworkInterface
 import java.net.ServerSocket
+import scala.jdk.CollectionConverters._
 import scala.reflect.io.Directory
 import scala.util.Using
 
 object Hooks {
-  def useLocalHostAddress: String = InetAddress.getLocalHost.getHostAddress
+  def useLocalHostAddress: String =
+    NetworkInterface.getNetworkInterfaces.asScala
+      .flatMap(_.getInetAddresses.asScala.toList)
+      .find(address =>
+        address.isInstanceOf[Inet4Address] && !address.isLoopbackAddress
+      )
+      .get
+      .getHostAddress
+
   def useAvailablePort: Int = Using(new ServerSocket(0))(_.getLocalPort).get
   def useTemporaryDirectory: Directory = Directory.makeTemp("paranode")
 }