fixed exception handling in the client

gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/GradleBuildCacheServer.kt

@@ -24,6 +24,7 @@ import io.netty.handler.ssl.SslContext
 import io.netty.handler.ssl.SslContextBuilder
 import io.netty.handler.ssl.SslHandler
 import io.netty.handler.stream.ChunkedWriteHandler
+import io.netty.handler.timeout.IdleState
 import io.netty.handler.timeout.IdleStateEvent
 import io.netty.handler.timeout.IdleStateHandler
 import io.netty.util.AttributeKey
@@ -314,8 +315,17 @@ class GradleBuildCacheServer(private val cfg: Configuration) {
             pipeline.addLast(object : ChannelInboundHandlerAdapter() {
                 override fun userEventTriggered(ctx: ChannelHandlerContext, evt: Any) {
                     if (evt is IdleStateEvent) {
-                        log.debug {
-                            "Idle timeout reached on channel ${ch.id().asShortText()}, closing the connection"
+                        when(evt.state()) {
+                            IdleState.READER_IDLE -> log.debug {
+                                "Read timeout reached on channel ${ch.id().asShortText()}, closing the connection"
+                            }
+                            IdleState.WRITER_IDLE -> log.debug {
+                                "Write timeout reached on channel ${ch.id().asShortText()}, closing the connection"
+                            }
+                            IdleState.ALL_IDLE -> log.debug {
+                                "Idle timeout reached on channel ${ch.id().asShortText()}, closing the connection"
+                            }
+                            null -> throw IllegalStateException("This should never happen")
                         }
                         ctx.close()
                     }

gbcs-server/src/main/kotlin/net/woggioni/gbcs/server/configuration/Serializer.kt

@@ -154,6 +154,9 @@ object Serializer {
 
             conf.tls?.let { tlsConfiguration ->
                 node("tls") {
+                    if(tlsConfiguration.isVerifyClients) {
+                        attr("verify-clients", "true")
+                    }
                     tlsConfiguration.keyStore?.let { keyStore ->
                         node("keystore") {
                             attr("file", keyStore.file.toString())

gbcs-server/src/main/resources/net/woggioni/gbcs/server/schema/gbcs.xsd

@@ -183,7 +183,7 @@
             <xs:element name="keystore" type="gbcs:keyStoreType" />
             <xs:element name="truststore" type="gbcs:trustStoreType" minOccurs="0"/>
         </xs:all>
-        <xs:attribute name="verify-clients" type="xs:boolean" use="optional"/>
+        <xs:attribute name="verify-clients" type="xs:boolean" use="optional" default="false"/>
     </xs:complexType>
 
     <xs:complexType name="keyStoreType">

gbcs-server/src/test/resources/net/woggioni/gbcs/server/test/valid/gbcs-tls.xml

@@ -60,7 +60,7 @@
             <user-extractor pattern="user-pattern" attribute-name="CN"/>
         </client-certificate>
     </authentication>
-    <tls>
+    <tls verify-clients="true">
         <keystore file="keystore.pfx" key-alias="key1" password="password" key-password="key-password"/>
         <truststore file="truststore.pfx" password="password" check-certificate-status="true" />
     </tls>