| // |
| // ======================================================================== |
| // Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.server; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| import javax.net.ssl.SSLEngine; |
| |
| import org.eclipse.jetty.http.HttpVersion; |
| import org.eclipse.jetty.io.AbstractConnection; |
| import org.eclipse.jetty.io.Connection; |
| import org.eclipse.jetty.io.EndPoint; |
| import org.eclipse.jetty.io.ssl.SslConnection; |
| |
| public abstract class NegotiatingServerConnectionFactory extends AbstractConnectionFactory |
| { |
| public static void checkProtocolNegotiationAvailable() |
| { |
| try |
| { |
| String javaVersion = System.getProperty("java.version"); |
| String alpnClassName = "org.eclipse.jetty.alpn.ALPN"; |
| if (javaVersion.startsWith("1.")) |
| { |
| Class<?> klass = ClassLoader.getSystemClassLoader().loadClass(alpnClassName); |
| if (klass.getClassLoader() != null) |
| throw new IllegalStateException(alpnClassName + " must be on JVM boot classpath"); |
| } |
| else |
| { |
| NegotiatingServerConnectionFactory.class.getClassLoader().loadClass(alpnClassName); |
| } |
| } |
| catch (ClassNotFoundException x) |
| { |
| throw new IllegalStateException("No ALPN classes available"); |
| } |
| } |
| |
| private final List<String> negotiatedProtocols; |
| private String defaultProtocol; |
| |
| public NegotiatingServerConnectionFactory(String protocol, String... negotiatedProtocols) |
| { |
| super(protocol); |
| this.negotiatedProtocols = new ArrayList<>(); |
| if (negotiatedProtocols != null) |
| { |
| // Trim the values, as they may come from XML configuration. |
| for (String p : negotiatedProtocols) |
| { |
| p = p.trim(); |
| if (!p.isEmpty()) |
| this.negotiatedProtocols.add(p.trim()); |
| } |
| } |
| } |
| |
| public String getDefaultProtocol() |
| { |
| return defaultProtocol; |
| } |
| |
| public void setDefaultProtocol(String defaultProtocol) |
| { |
| // Trim the value, as it may come from XML configuration. |
| String dft = defaultProtocol == null ? "" : defaultProtocol.trim(); |
| this.defaultProtocol = dft.isEmpty() ? null : dft; |
| } |
| |
| public List<String> getNegotiatedProtocols() |
| { |
| return negotiatedProtocols; |
| } |
| |
| @Override |
| public Connection newConnection(Connector connector, EndPoint endPoint) |
| { |
| List<String> negotiated = this.negotiatedProtocols; |
| if (negotiated.isEmpty()) |
| { |
| // Generate list of protocols that we can negotiate |
| negotiated = connector.getProtocols().stream() |
| .filter(p-> |
| { |
| ConnectionFactory f=connector.getConnectionFactory(p); |
| return !(f instanceof SslConnectionFactory)&&!(f instanceof NegotiatingServerConnectionFactory); |
| }) |
| .collect(Collectors.toList()); |
| } |
| |
| // if default protocol is not set, then it is either HTTP/1.1 or |
| // the first protocol given |
| String dft = defaultProtocol; |
| if (dft == null && !negotiated.isEmpty()) |
| { |
| if (negotiated.contains(HttpVersion.HTTP_1_1.asString())) |
| dft = HttpVersion.HTTP_1_1.asString(); |
| else |
| dft = negotiated.get(0); |
| } |
| |
| SSLEngine engine = null; |
| EndPoint ep = endPoint; |
| while (engine == null && ep != null) |
| { |
| // TODO make more generic |
| if (ep instanceof SslConnection.DecryptedEndPoint) |
| engine = ((SslConnection.DecryptedEndPoint)ep).getSslConnection().getSSLEngine(); |
| else |
| ep = null; |
| } |
| |
| return configure(newServerConnection(connector, endPoint, engine, negotiated, dft), connector, endPoint); |
| } |
| |
| protected abstract AbstractConnection newServerConnection(Connector connector, EndPoint endPoint, SSLEngine engine, List<String> protocols, String defaultProtocol); |
| |
| @Override |
| public String toString() |
| { |
| return String.format("%s@%x{%s,%s,%s}", getClass().getSimpleName(), hashCode(), getProtocols(), getDefaultProtocol(), getNegotiatedProtocols()); |
| } |
| } |