WebSockets Next: configuration updates

- remove unimplemented timeout
- add compression support/level
- add max message size
- also invoke error handlers for connection exceptions
- resolves quarkusio#39590

extensions/websockets-next/server/deployment/src/test/java/io/quarkus/websockets/next/test/errors/WriteErrorClosedConnectionTest.java

@@ -0,0 +1,70 @@
+package io.quarkus.websockets.next.test.errors;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.net.URI;
+import java.time.Duration;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import jakarta.inject.Inject;
+
+import org.awaitility.Awaitility;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+
+import io.quarkus.test.QuarkusUnitTest;
+import io.quarkus.test.common.http.TestHTTPResource;
+import io.quarkus.websockets.next.OnBinaryMessage;
+import io.quarkus.websockets.next.OnError;
+import io.quarkus.websockets.next.WebSocket;
+import io.quarkus.websockets.next.WebSocketConnection;
+import io.quarkus.websockets.next.test.utils.WSClient;
+import io.smallrye.mutiny.Uni;
+import io.vertx.core.Vertx;
+import io.vertx.core.buffer.Buffer;
+
+public class WriteErrorClosedConnectionTest {
+
+    @RegisterExtension
+    public static final QuarkusUnitTest test = new QuarkusUnitTest()
+            .withApplicationRoot(root -> {
+                root.addClasses(Echo.class, WSClient.class);
+            });
+
+    @Inject
+    Vertx vertx;
+
+    @TestHTTPResource("echo")
+    URI testUri;
+
+    @Test
+    void testError() {
+        WSClient client = WSClient.create(vertx).connect(testUri);
+        client.sendAndAwait(Buffer.buffer("1"));
+        Awaitility.await().atMost(Duration.ofSeconds(5)).until(() -> client.isClosed());
+        assertTrue(Echo.ERROR_HANDLER_CALLED.get());
+    }
+
+    @WebSocket(path = "/echo")
+    public static class Echo {
+
+        static final AtomicBoolean ERROR_HANDLER_CALLED = new AtomicBoolean();
+
+        @OnBinaryMessage
+        Uni<Buffer> process(Buffer message, WebSocketConnection connection) {
+            // This should result in a failure because the connection is closed
+            // but we still try to write a binary message
+            return connection.close().replaceWith(message);
+        }
+
+        @OnError
+        void runtimeProblem(Throwable t, WebSocketConnection connection) {
+            if (connection.isOpen()) {
+                throw new IllegalStateException();
+            }
+            ERROR_HANDLER_CALLED.set(true);
+        }
+
+    }
+
+}

extensions/websockets-next/server/deployment/src/test/java/io/quarkus/websockets/next/test/maxmessagesize/MaxMessageSizeTest.java

@@ -0,0 +1,63 @@
+package io.quarkus.websockets.next.test.maxmessagesize;
+
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.net.URI;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import jakarta.inject.Inject;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+
+import io.quarkus.test.QuarkusUnitTest;
+import io.quarkus.test.common.http.TestHTTPResource;
+import io.quarkus.websockets.next.OnError;
+import io.quarkus.websockets.next.OnTextMessage;
+import io.quarkus.websockets.next.WebSocket;
+import io.quarkus.websockets.next.test.utils.WSClient;
+import io.vertx.core.Vertx;
+
+public class MaxMessageSizeTest {
+
+    @RegisterExtension
+    public static final QuarkusUnitTest test = new QuarkusUnitTest()
+            .withApplicationRoot(root -> {
+                root.addClasses(Echo.class, WSClient.class);
+            }).overrideConfigKey("quarkus.websockets-next.max-message-size", "10");
+
+    @Inject
+    Vertx vertx;
+
+    @TestHTTPResource("/echo")
+    URI echoUri;
+
+    @Test
+    void testMaxMessageSize() {
+        WSClient client = WSClient.create(vertx).connect(echoUri);
+        String msg = "foo".repeat(10);
+        String reply = client.sendAndAwaitReply(msg).toString();
+        assertNotEquals(msg, reply);
+        assertTrue(Echo.ISE_THROWN.get());
+    }
+
+    @WebSocket(path = "/echo")
+    public static class Echo {
+
+        static final AtomicBoolean ISE_THROWN = new AtomicBoolean();
+
+        @OnTextMessage
+        String process(String message) {
+            return message;
+        }
+
+        @OnError
+        String onError(IllegalStateException ise) {
+            ISE_THROWN.set(true);
+            return ise.getMessage();
+        }
+
+    }
+
+}

extensions/websockets-next/server/deployment/src/test/java/io/quarkus/websockets/next/test/subprotocol/SubprotocolNotAvailableTest.java

@@ -5,11 +5,16 @@
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.net.URI;
+import java.time.Duration;
 import java.util.concurrent.CompletionException;
 import java.util.concurrent.atomic.AtomicBoolean;
 
+import jakarta.enterprise.context.Destroyed;
+import jakarta.enterprise.context.SessionScoped;
+import jakarta.enterprise.event.Observes;
 import jakarta.inject.Inject;
 
+import org.awaitility.Awaitility;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.RegisterExtension;
 
@@ -43,18 +48,26 @@ void testConnectionRejected() {
         Throwable cause = e.getCause();
         assertTrue(cause instanceof WebSocketClientHandshakeException);
         assertFalse(Endpoint.OPEN_CALLED.get());
+        // Wait until the CDI singleton context is destroyed
+        // Otherwise the test app is shut down before the WebSocketSessionContext is ended properly
+        Awaitility.await().atMost(Duration.ofSeconds(5)).until(() -> Endpoint.SESSION_CONTEXT_DESTROYED.get());
     }
 
     @WebSocket(path = "/endpoint")
     public static class Endpoint {
 
         static final AtomicBoolean OPEN_CALLED = new AtomicBoolean();
+        static final AtomicBoolean SESSION_CONTEXT_DESTROYED = new AtomicBoolean();
 
         @OnOpen
         void open() {
             OPEN_CALLED.set(true);
         }
 
+        static void sessionContextDestroyed(@Observes @Destroyed(SessionScoped.class) Object event) {
+            SESSION_CONTEXT_DESTROYED.set(true);
+        }
+
     }
 
 }

extensions/websockets-next/server/runtime/src/main/java/io/quarkus/websockets/next/WebSocketsRuntimeConfig.java

@@ -1,29 +1,42 @@
 package io.quarkus.websockets.next;
 
-import java.time.Duration;
 import java.util.List;
 import java.util.Optional;
+import java.util.OptionalInt;
 
 import io.quarkus.runtime.annotations.ConfigPhase;
 import io.quarkus.runtime.annotations.ConfigRoot;
 import io.smallrye.config.ConfigMapping;
+import io.smallrye.config.WithDefault;
+import io.vertx.core.http.HttpServerOptions;
 
 @ConfigMapping(prefix = "quarkus.websockets-next")
 @ConfigRoot(phase = ConfigPhase.RUN_TIME)
 public interface WebSocketsRuntimeConfig {
 
     /**
      * See <a href="https://datatracker.ietf.org/doc/html/rfc6455#page-12">The WebSocket Protocol</a>
-     *
-     * @return the supported subprotocols
      */
     Optional<List<String>> supportedSubprotocols();
 
     /**
-     * TODO Not implemented yet.
-     *
-     * The default timeout to complete processing of a message.
+     * Compression Extensions for WebSocket are supported by default.
+     * <p>
+     * See also <a href="https://datatracker.ietf.org/doc/html/rfc7692">RFC 7692</a>
      */
-    Optional<Duration> timeout();
+    @WithDefault("true")
+    boolean perMessageCompressionSupported();
+
+    /**
+     * The compression level must be a value between 0 and 9. The default value is
+     * {@value HttpServerOptions#DEFAULT_WEBSOCKET_COMPRESSION_LEVEL}.
+     */
+    OptionalInt compressionLevel();
+
+    /**
+     * The maximum size of a message in bytes. The default values is
+     * {@value HttpServerOptions#DEFAULT_MAX_WEBSOCKET_MESSAGE_SIZE}.
+     */
+    OptionalInt maxMessageSize();
 
 }

extensions/websockets-next/server/runtime/src/main/java/io/quarkus/websockets/next/runtime/ContextSupport.java

@@ -69,7 +69,7 @@ void endSession() {
     }
 
     ContextState currentRequestContextState() {
-        return requestContext.getState();
+        return requestContext.getStateIfActive();
     }
 
     static Context createNewDuplicatedContext(Context context, WebSocketConnection connection) {

extensions/websockets-next/server/runtime/src/main/java/io/quarkus/websockets/next/runtime/WebSocketHttpServerOptionsCustomizer.java

@@ -17,12 +17,23 @@ public class WebSocketHttpServerOptionsCustomizer implements HttpServerOptionsCu
 
     @Override
     public void customizeHttpServer(HttpServerOptions options) {
-        config.supportedSubprotocols().orElse(List.of()).forEach(options::addWebSocketSubProtocol);
+        customize(options);
     }
 
     @Override
     public void customizeHttpsServer(HttpServerOptions options) {
+        customize(options);
+    }
+
+    private void customize(HttpServerOptions options) {
         config.supportedSubprotocols().orElse(List.of()).forEach(options::addWebSocketSubProtocol);
+        options.setPerMessageWebSocketCompressionSupported(config.perMessageCompressionSupported());
+        if (config.compressionLevel().isPresent()) {
+            options.setWebSocketCompressionLevel(config.compressionLevel().getAsInt());
+        }
+        if (config.maxMessageSize().isPresent()) {
+            options.setMaxWebSocketMessageSize(config.maxMessageSize().getAsInt());
+        }
     }
 
 }

extensions/websockets-next/server/runtime/src/main/java/io/quarkus/websockets/next/runtime/WebSocketServerRecorder.java

@@ -234,6 +234,21 @@ public void handle(Void event) {
                             });
                         }
                     });
+
+                    ws.exceptionHandler(new Handler<Throwable>() {
+                        @Override
+                        public void handle(Throwable t) {
+                            ContextSupport.createNewDuplicatedContext(context, connection).runOnContext(new Handler<Void>() {
+                                @Override
+                                public void handle(Void event) {
+                                    endpoint.doOnError(t).subscribe().with(
+                                            v -> LOG.debugf("Error [%s] processed: %s", t.getClass(), connection),
+                                            t -> LOG.errorf(t, "Unhandled error occured: %s", t.toString(),
+                                                    connection));
+                                }
+                            });
+                        }
+                    });
                 });
             }
         };