improved logging

rbcs-common/src/test/kotlin/net/woggioni/rbcs/common/CidrTest.kt

@@ -0,0 +1,17 @@
+package net.woggioni.rbcs.common
+
+import java.net.InetAddress
+import org.junit.jupiter.api.Assertions
+import org.junit.jupiter.api.Test
+
+class CidrTest {
+    class CidrTest {
+        @Test
+        fun test() {
+            val cidr = Cidr.from("2a02:4780:12:368b::1/128")
+            Assertions.assertTrue {
+                cidr.contains(InetAddress.ofLiteral("2a02:4780:12:368b::1"))
+            }
+        }
+    }
+}

rbcs-server/src/main/kotlin/net/woggioni/rbcs/server/handler/ProxyProtocolHandler.kt

@@ -24,7 +24,14 @@ class ProxyProtocolHandler(private val trustedProxyIPs : List<Cidr>) : SimpleCha
         val sourceAddress = ctx.channel().remoteAddress()
         if (sourceAddress is InetSocketAddress &&
             trustedProxyIPs.isEmpty() ||
-            trustedProxyIPs.any { it.contains((sourceAddress as InetSocketAddress).address) }) {
+            trustedProxyIPs.any { it.contains((sourceAddress as InetSocketAddress).address) }.also {
+                if(log.isTraceEnabled) {
+                    log.trace {
+                        "Received proxied request from $sourceAddress which is not a trusted proxy address, " +
+                                "the proxy server address will be used instead"
+                    }
+                }
+            }) {
             val proxiedClientAddress = InetSocketAddress(
                 InetAddress.ofLiteral(msg.sourceAddress()),
                 msg.sourcePort()