| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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.apache.pulsar.websocket.service; |
| |
| import static org.apache.pulsar.websocket.admin.WebSocketWebResource.ATTRIBUTE_PROXY_SERVICE_NAME; |
| |
| import java.net.MalformedURLException; |
| import java.security.GeneralSecurityException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| |
| import javax.net.ssl.SSLContext; |
| import javax.servlet.Servlet; |
| import javax.servlet.ServletException; |
| import javax.websocket.DeploymentException; |
| |
| import org.apache.pulsar.broker.PulsarServerException; |
| import org.apache.pulsar.client.api.PulsarClientException; |
| import org.apache.pulsar.common.util.ObjectMapperFactory; |
| import org.apache.pulsar.common.util.SecurityUtility; |
| import org.apache.pulsar.websocket.WebSocketService; |
| import org.eclipse.jetty.server.Handler; |
| import org.eclipse.jetty.server.Server; |
| import org.eclipse.jetty.server.ServerConnector; |
| import org.eclipse.jetty.server.Slf4jRequestLog; |
| import org.eclipse.jetty.server.handler.ContextHandlerCollection; |
| import org.eclipse.jetty.server.handler.DefaultHandler; |
| import org.eclipse.jetty.server.handler.HandlerCollection; |
| import org.eclipse.jetty.server.handler.RequestLogHandler; |
| import org.eclipse.jetty.servlet.ServletContextHandler; |
| import org.eclipse.jetty.servlet.ServletHolder; |
| import org.eclipse.jetty.util.ssl.SslContextFactory; |
| import org.eclipse.jetty.util.thread.ExecutorThreadPool; |
| import org.glassfish.jersey.server.ResourceConfig; |
| import org.glassfish.jersey.servlet.ServletContainer; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider; |
| import com.google.common.collect.Lists; |
| |
| import io.netty.util.concurrent.DefaultThreadFactory; |
| |
| public class ProxyServer { |
| private final Server server; |
| private final List<Handler> handlers = Lists.newArrayList(); |
| private final WebSocketProxyConfiguration conf; |
| private final ExecutorService executorService; |
| |
| public ProxyServer(WebSocketProxyConfiguration config) |
| throws PulsarClientException, MalformedURLException, PulsarServerException { |
| this.conf = config; |
| executorService = Executors.newFixedThreadPool(WebSocketProxyConfiguration.PROXY_SERVER_EXECUTOR_THREADS, |
| new DefaultThreadFactory("pulsar-websocket-web")); |
| this.server = new Server(new ExecutorThreadPool(executorService)); |
| List<ServerConnector> connectors = new ArrayList<>(); |
| |
| ServerConnector connector = new ServerConnector(server); |
| |
| connector.setPort(config.getWebServicePort()); |
| connectors.add(connector); |
| |
| // TLS enabled connector |
| if (config.isTlsEnabled()) { |
| SslContextFactory sslCtxFactory = new SslContextFactory(true); |
| try { |
| SSLContext sslCtx = SecurityUtility.createSslContext(false, config.getTlsTrustCertsFilePath(), config.getTlsCertificateFilePath(), |
| config.getTlsKeyFilePath()); |
| sslCtxFactory.setSslContext(sslCtx); |
| |
| } catch (GeneralSecurityException e) { |
| throw new PulsarServerException(e); |
| } |
| |
| sslCtxFactory.setWantClientAuth(true); |
| ServerConnector tlsConnector = new ServerConnector(server, -1, -1, sslCtxFactory); |
| tlsConnector.setPort(config.getWebServicePortTls()); |
| connectors.add(tlsConnector); |
| |
| } |
| |
| // Limit number of concurrent HTTP connections to avoid getting out of |
| // file descriptors |
| connectors.stream().forEach(c -> c.setAcceptQueueSize(1024 / connectors.size())); |
| server.setConnectors(connectors.toArray(new ServerConnector[connectors.size()])); |
| } |
| |
| public void addWebSocketServlet(String basePath, Servlet socketServlet) |
| throws ServletException, DeploymentException { |
| ServletHolder servletHolder = new ServletHolder("ws-events", socketServlet); |
| ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS); |
| context.setContextPath(basePath); |
| context.addServlet(servletHolder, "/*"); |
| handlers.add(context); |
| } |
| |
| public void addRestResources(String basePath, String javaPackages, WebSocketService service) { |
| JacksonJaxbJsonProvider provider = new JacksonJaxbJsonProvider(); |
| provider.setMapper(ObjectMapperFactory.create()); |
| ResourceConfig config = new ResourceConfig(); |
| config.packages("jersey.config.server.provider.packages", javaPackages); |
| config.register(provider); |
| ServletHolder servletHolder = new ServletHolder(new ServletContainer(config)); |
| servletHolder.setAsyncSupported(true); |
| ServletContextHandler context = new ServletContextHandler(ServletContextHandler.SESSIONS); |
| context.setContextPath(basePath); |
| context.addServlet(servletHolder, "/*"); |
| context.setAttribute(ATTRIBUTE_PROXY_SERVICE_NAME, service); |
| handlers.add(context); |
| } |
| |
| public void start() throws PulsarServerException { |
| log.info("Starting web socket proxy at port {}", conf.getWebServicePort()); |
| try { |
| RequestLogHandler requestLogHandler = new RequestLogHandler(); |
| Slf4jRequestLog requestLog = new Slf4jRequestLog(); |
| requestLog.setExtended(true); |
| requestLog.setLogTimeZone("GMT"); |
| requestLog.setLogLatency(true); |
| requestLogHandler.setRequestLog(requestLog); |
| handlers.add(0, new ContextHandlerCollection()); |
| handlers.add(requestLogHandler); |
| |
| ContextHandlerCollection contexts = new ContextHandlerCollection(); |
| contexts.setHandlers(handlers.toArray(new Handler[handlers.size()])); |
| |
| HandlerCollection handlerCollection = new HandlerCollection(); |
| handlerCollection.setHandlers(new Handler[] { contexts, new DefaultHandler(), requestLogHandler }); |
| server.setHandler(handlerCollection); |
| |
| server.start(); |
| } catch (Exception e) { |
| throw new PulsarServerException(e); |
| } |
| } |
| |
| public void stop() throws Exception { |
| server.stop(); |
| executorService.shutdown(); |
| } |
| |
| private static final Logger log = LoggerFactory.getLogger(ProxyServer.class); |
| } |