| /* |
| * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.internal.net.http; |
| |
| import java.net.InetSocketAddress; |
| import java.util.Arrays; |
| import java.util.ArrayDeque; |
| import java.util.List; |
| import java.util.concurrent.CompletableFuture; |
| import javax.net.ssl.SNIHostName; |
| import javax.net.ssl.SSLContext; |
| import javax.net.ssl.SSLEngine; |
| import javax.net.ssl.SSLParameters; |
| |
| import jdk.internal.net.http.common.SSLTube; |
| import jdk.internal.net.http.common.Log; |
| import jdk.internal.net.http.common.Utils; |
| import static jdk.internal.net.http.common.Utils.ServerName; |
| |
| /** |
| * Asynchronous version of SSLConnection. |
| * |
| * There are two concrete implementations of this class: AsyncSSLConnection |
| * and AsyncSSLTunnelConnection. |
| * This abstraction is useful when downgrading from HTTP/2 to HTTP/1.1 over |
| * an SSL connection. See ExchangeImpl::get in the case where an ALPNException |
| * is thrown. |
| * |
| * Note: An AsyncSSLConnection wraps a PlainHttpConnection, while an |
| * AsyncSSLTunnelConnection wraps a PlainTunnelingConnection. |
| * If both these wrapped classes where made to inherit from a |
| * common abstraction then it might be possible to merge |
| * AsyncSSLConnection and AsyncSSLTunnelConnection back into |
| * a single class - and simply use different factory methods to |
| * create different wrappees, but this is left up for further cleanup. |
| * |
| */ |
| abstract class AbstractAsyncSSLConnection extends HttpConnection |
| { |
| protected final SSLEngine engine; |
| protected final String serverName; |
| protected final SSLParameters sslParameters; |
| |
| // Setting this property disables HTTPS hostname verification. Use with care. |
| private static final boolean disableHostnameVerification |
| = Utils.isHostnameVerificationDisabled(); |
| |
| AbstractAsyncSSLConnection(InetSocketAddress addr, |
| HttpClientImpl client, |
| ServerName serverName, int port, |
| String[] alpn) { |
| super(addr, client); |
| this.serverName = serverName.getName(); |
| SSLContext context = client.theSSLContext(); |
| sslParameters = createSSLParameters(client, serverName, alpn); |
| Log.logParams(sslParameters); |
| engine = createEngine(context, serverName.getName(), port, sslParameters); |
| } |
| |
| abstract SSLTube getConnectionFlow(); |
| |
| final CompletableFuture<String> getALPN() { |
| return getConnectionFlow().getALPN(); |
| } |
| |
| final SSLEngine getEngine() { return engine; } |
| |
| private static boolean contains(String[] rr, String target) { |
| for (String s : rr) |
| if (target.equalsIgnoreCase(s)) |
| return true; |
| return false; |
| } |
| |
| private static SSLParameters createSSLParameters(HttpClientImpl client, |
| ServerName serverName, |
| String[] alpn) { |
| SSLParameters sslp = client.sslParameters(); |
| SSLParameters sslParameters = Utils.copySSLParameters(sslp); |
| // filter out unwanted protocols, if h2 only |
| if (alpn != null && alpn.length != 0 && !contains(alpn, "http/1.1")) { |
| ArrayDeque<String> l = new ArrayDeque<>(); |
| for (String proto : sslParameters.getProtocols()) { |
| if (!proto.startsWith("SSL") && !proto.endsWith("v1.1") && !proto.endsWith("v1")) { |
| l.add(proto); |
| } |
| } |
| String[] a1 = l.toArray(new String[0]); |
| sslParameters.setProtocols(a1); |
| } |
| |
| if (!disableHostnameVerification) |
| sslParameters.setEndpointIdentificationAlgorithm("HTTPS"); |
| if (alpn != null) { |
| Log.logSSL("AbstractAsyncSSLConnection: Setting application protocols: {0}", |
| Arrays.toString(alpn)); |
| sslParameters.setApplicationProtocols(alpn); |
| } else { |
| Log.logSSL("AbstractAsyncSSLConnection: no applications set!"); |
| } |
| if (!serverName.isLiteral()) { |
| String name = serverName.getName(); |
| if (name != null && name.length() > 0) { |
| sslParameters.setServerNames(List.of(new SNIHostName(name))); |
| } |
| } |
| return sslParameters; |
| } |
| |
| |
| private static SSLEngine createEngine(SSLContext context, String serverName, int port, |
| SSLParameters sslParameters) { |
| SSLEngine engine = context.createSSLEngine(serverName, port); |
| engine.setUseClientMode(true); |
| |
| engine.setSSLParameters(sslParameters); |
| return engine; |
| } |
| |
| @Override |
| final boolean isSecure() { |
| return true; |
| } |
| |
| } |