[grid] Improvement for Node handling

java/src/org/openqa/selenium/grid/node/ForwardWebDriverCommand.java

@@ -17,7 +17,11 @@
 
 package org.openqa.selenium.grid.node;
 
+import static org.openqa.selenium.remote.HttpSessionId.getSessionId;
+
+import org.openqa.selenium.NoSuchSessionException;
 import org.openqa.selenium.internal.Require;
+import org.openqa.selenium.remote.SessionId;
 import org.openqa.selenium.remote.http.HttpHandler;
 import org.openqa.selenium.remote.http.HttpRequest;
 import org.openqa.selenium.remote.http.HttpResponse;
@@ -30,8 +34,17 @@ class ForwardWebDriverCommand implements HttpHandler {
     this.node = Require.nonNull("Node", node);
   }
 
+  public boolean matches(HttpRequest req) {
+    return getSessionId(req.getUri())
+        .map(id -> node.isSessionOwner(new SessionId(id)))
+        .orElse(false);
+  }
+
   @Override
   public HttpResponse execute(HttpRequest req) {
-    return node.executeWebDriverCommand(req);
+    if (matches(req)) {
+      return node.executeWebDriverCommand(req);
+    }
+    throw new NoSuchSessionException(String.format("Session not found in node %s", node.getId()));
   }
 }

java/src/org/openqa/selenium/grid/node/Node.java

@@ -152,7 +152,7 @@ protected Node(
                     req ->
                         getSessionId(req.getUri())
                             .map(SessionId::new)
-                            .map(this::isSessionOwner)
+                            .map(sessionId -> this.getSession(sessionId) != null)
                             .orElse(false))
                 .to(() -> new ForwardWebDriverCommand(this))
                 .with(spanDecorator("node.forward_command")),

java/src/org/openqa/selenium/grid/node/local/LocalNode.java

@@ -297,7 +297,13 @@ protected LocalNode(
         heartbeatPeriod.getSeconds(),
         TimeUnit.SECONDS);
 
-    Runtime.getRuntime().addShutdownHook(new Thread(this::stopAllSessions));
+    Runtime.getRuntime()
+        .addShutdownHook(
+            new Thread(
+                () -> {
+                  stopAllSessions();
+                  drain();
+                }));
     new JMXHelper().register(this);
   }
 
@@ -316,7 +322,6 @@ private void stopTimedOutSession(RemovalNotification<SessionId, SessionSlot> not
       }
       // Attempt to stop the session
       slot.stop();
-      this.sessionToDownloadsDir.invalidate(id);
       // Decrement pending sessions if Node is draining
       if (this.isDraining()) {
         int done = pendingSessions.decrementAndGet();
@@ -473,8 +478,6 @@ public Either<WebDriverException, CreateSessionResponse> newSession(
         sessionToDownloadsDir.put(session.getId(), uuidForSessionDownloads);
         currentSessions.put(session.getId(), slotToUse);
 
-        checkSessionCount();
-
         SessionId sessionId = session.getId();
         Capabilities caps = session.getCapabilities();
         SESSION_ID.accept(span, sessionId);
@@ -513,6 +516,8 @@ public Either<WebDriverException, CreateSessionResponse> newSession(
         span.addEvent("Unable to create session with the driver", attributeMap);
         return Either.left(possibleSession.left());
       }
+    } finally {
+      checkSessionCount();
     }
   }
 
@@ -765,6 +770,10 @@ public HttpResponse uploadFile(HttpRequest req, SessionId id) {
   public void stop(SessionId id) throws NoSuchSessionException {
     Require.nonNull("Session ID", id);
 
+    if (sessionToDownloadsDir.getIfPresent(id) != null) {
+      sessionToDownloadsDir.invalidate(id);
+    }
+
     SessionSlot slot = currentSessions.getIfPresent(id);
     if (slot == null) {
       throw new NoSuchSessionException("Cannot find session with id: " + id);

java/test/org/openqa/selenium/grid/e2e/BUILD.bazel

@@ -0,0 +1,20 @@
+load("@rules_jvm_external//:defs.bzl", "artifact")
+load("//java:defs.bzl", "JUNIT5_DEPS", "java_selenium_test_suite")
+
+java_selenium_test_suite(
+    name = "large-tests",
+    size = "large",
+    srcs = glob(["*.java"]),
+    browsers = [
+        "chrome",
+    ],
+    deps = [
+        "//java/src/org/openqa/selenium:core",
+        "//java/src/org/openqa/selenium/chrome",
+        "//java/src/org/openqa/selenium/grid",
+        "//java/src/org/openqa/selenium/remote/http",
+        artifact("com.google.guava:guava"),
+        artifact("org.junit.jupiter:junit-jupiter-api"),
+        artifact("org.assertj:assertj-core"),
+    ] + JUNIT5_DEPS,
+)

java/test/org/openqa/selenium/grid/e2e/SessionTimeoutTest.java

@@ -0,0 +1,51 @@
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package org.openqa.selenium.grid.e2e;
+
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.net.URI;
+import org.assertj.core.api.Assumptions;
+import org.junit.jupiter.api.Test;
+import org.openqa.selenium.NoSuchSessionException;
+import org.openqa.selenium.WebDriver;
+import org.openqa.selenium.chrome.ChromeOptions;
+import org.openqa.selenium.grid.Bootstrap;
+import org.openqa.selenium.remote.RemoteWebDriver;
+
+public class SessionTimeoutTest {
+  @Test
+  void testSessionTimeout() throws Exception {
+    Assumptions.assumeThat(System.getProperty("webdriver.chrome.binary")).isNull();
+    Bootstrap.main(("hub --host 127.0.0.1 --port 4444").split(" "));
+    Bootstrap.main(
+        ("node --host 127.0.0.1 --port 5555 --session-timeout 12 --selenium-manager true")
+            .split(" "));
+
+    var options = new ChromeOptions();
+    options.addArguments("--disable-search-engine-choice-screen");
+    options.addArguments("--headless=new");
+
+    WebDriver driver = new RemoteWebDriver(URI.create("http://localhost:4444").toURL(), options);
+    driver.get("http://localhost:4444");
+    Thread.sleep(12000);
+    NoSuchSessionException exception = assertThrows(NoSuchSessionException.class, driver::getTitle);
+    assertTrue(exception.getMessage().startsWith("Cannot find session with id:"));
+  }
+}

java/test/org/openqa/selenium/grid/node/ForwardWebDriverCommandTest.java

@@ -0,0 +1,76 @@
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+package org.openqa.selenium.grid.node;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.*;
+
+import java.util.UUID;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.openqa.selenium.NoSuchSessionException;
+import org.openqa.selenium.grid.data.NodeId;
+import org.openqa.selenium.remote.SessionId;
+import org.openqa.selenium.remote.http.HttpRequest;
+import org.openqa.selenium.remote.http.HttpResponse;
+
+class ForwardWebDriverCommandTest {
+
+  private Node mockNode;
+  private ForwardWebDriverCommand command;
+
+  @BeforeEach
+  void setUp() {
+    mockNode = mock(Node.class);
+    when(mockNode.getId()).thenReturn(new NodeId(UUID.randomUUID()));
+    command = new ForwardWebDriverCommand(mockNode);
+  }
+
+  @Test
+  void testExecuteWithValidSessionOwner() {
+    HttpRequest mockRequest = mock(HttpRequest.class);
+    when(mockRequest.getUri()).thenReturn("/session/1234");
+
+    SessionId sessionId = new SessionId("1234");
+    when(mockNode.isSessionOwner(sessionId)).thenReturn(true);
+
+    HttpResponse expectedResponse = new HttpResponse();
+    when(mockNode.executeWebDriverCommand(mockRequest)).thenReturn(expectedResponse);
+
+    HttpResponse actualResponse = command.execute(mockRequest);
+    assertEquals(expectedResponse, actualResponse);
+  }
+
+  @Test
+  void testExecuteWithInvalidSessionOwner() {
+    HttpRequest mockRequest = mock(HttpRequest.class);
+    when(mockRequest.getUri()).thenReturn("/session/5678");
+
+    SessionId sessionId = new SessionId("5678");
+    when(mockNode.isSessionOwner(sessionId)).thenReturn(false);
+
+    NoSuchSessionException exception =
+        assertThrows(NoSuchSessionException.class, () -> command.execute(mockRequest));
+    assertTrue(
+        exception
+            .getMessage()
+            .startsWith(String.format("Session not found in node %s", mockNode.getId())));
+  }
+}

java/test/org/openqa/selenium/grid/node/NodeTest.java

@@ -23,6 +23,8 @@
 import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.assertj.core.api.InstanceOfAssertFactories.MAP;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.openqa.selenium.json.Json.MAP_TYPE;
 import static org.openqa.selenium.remote.http.Contents.string;
 import static org.openqa.selenium.remote.http.HttpMethod.DELETE;
@@ -102,7 +104,9 @@ class NodeTest {
   private Tracer tracer;
   private EventBus bus;
   private LocalNode local;
+  private LocalNode local2;
   private Node node;
+  private Node node2;
   private ImmutableCapabilities stereotype;
   private ImmutableCapabilities caps;
   private URI uri;
@@ -150,6 +154,7 @@ public HttpResponse execute(HttpRequest req) throws UncheckedIOException {
       builder = builder.enableManagedDownloads(true).sessionTimeout(Duration.ofSeconds(1));
     }
     local = builder.build();
+    local2 = builder.build();
 
     node =
         new RemoteNode(
@@ -160,6 +165,16 @@ public HttpResponse execute(HttpRequest req) throws UncheckedIOException {
             registrationSecret,
             local.getSessionTimeout(),
             ImmutableSet.of(caps));
+
+    node2 =
+        new RemoteNode(
+            tracer,
+            new PassthroughHttpClient.Factory(local2),
+            new NodeId(UUID.randomUUID()),
+            uri,
+            registrationSecret,
+            local2.getSessionTimeout(),
+            ImmutableSet.of(caps));
   }
 
   @Test
@@ -371,13 +386,36 @@ void shouldOnlyRespondToWebDriverCommandsForSessionsTheNodeOwns() {
     assertThatEither(response).isRight();
     Session session = response.right().getSession();
 
+    Either<WebDriverException, CreateSessionResponse> response2 =
+        node2.newSession(createSessionRequest(caps));
+    assertThatEither(response2).isRight();
+    Session session2 = response2.right().getSession();
+
+    // Assert that should respond to commands for sessions Node 1 owns
     HttpRequest req = new HttpRequest(POST, String.format("/session/%s/url", session.getId()));
     assertThat(local.matches(req)).isTrue();
     assertThat(node.matches(req)).isTrue();
 
-    req = new HttpRequest(POST, String.format("/session/%s/url", UUID.randomUUID()));
-    assertThat(local.matches(req)).isFalse();
-    assertThat(node.matches(req)).isFalse();
+    // Assert that should respond to commands for sessions Node 2 owns
+    HttpRequest req2 = new HttpRequest(POST, String.format("/session/%s/url", session2.getId()));
+    assertThat(local2.matches(req2)).isTrue();
+    assertThat(node2.matches(req2)).isTrue();
+
+    // Assert that should not respond to commands for sessions Node 1 does not own
+    NoSuchSessionException exception =
+        assertThrows(NoSuchSessionException.class, () -> node.execute(req2));
+    assertTrue(
+        exception
+            .getMessage()
+            .startsWith(String.format("Cannot find session with id: %s", session2.getId())));
+
+    // Assert that should not respond to commands for sessions Node 2 does not own
+    NoSuchSessionException exception2 =
+        assertThrows(NoSuchSessionException.class, () -> node2.execute(req));
+    assertTrue(
+        exception2
+            .getMessage()
+            .startsWith(String.format("Cannot find session with id: %s", session.getId())));
   }
 
   @Test