test/jdk/java/net/Socket/HttpProxy.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 2010, 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.
  *
  * 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.
  */

 /*
  * @test
  * @bug 6370908
  * @summary Add support for HTTP_CONNECT proxy in Socket class
  * @modules java.base/sun.net.www
  * @run main HttpProxy
  * @run main/othervm -Djava.net.preferIPv4Stack=true HttpProxy
  */

 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.PrintWriter;
 import static java.lang.System.out;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
 import java.net.Proxy;
 import java.net.ServerSocket;
 import java.net.Socket;
 import sun.net.www.MessageHeader;

 public class HttpProxy {
     final String proxyHost;
     final int proxyPort;
     static final int SO_TIMEOUT = 15000;

     public static void main(String[] args) throws Exception {
         String host;
         int port;
         if (args.length == 0) {
             // Start internal proxy
             ConnectProxyTunnelServer proxy = new ConnectProxyTunnelServer();
             proxy.start();
             host = "localhost";
             port = proxy.getLocalPort();
             out.println("Running with internal proxy: " + host + ":" + port);
         } else if (args.length == 2) {
             host = args[0];
             port = Integer.valueOf(args[1]);
             out.println("Running against specified proxy server: " + host + ":" + port);
         } else {
             System.err.println("Usage: java HttpProxy [<proxy host> <proxy port>]");
             return;
         }

         HttpProxy p = new HttpProxy(host, port);
         p.test();
     }

     public HttpProxy(String proxyHost, int proxyPort) {
         this.proxyHost = proxyHost;
         this.proxyPort = proxyPort;
     }

     void test() throws Exception {
         InetSocketAddress proxyAddress = new InetSocketAddress(proxyHost, proxyPort);
         Proxy httpProxy = new Proxy(Proxy.Type.HTTP, proxyAddress);

         try (ServerSocket ss = new ServerSocket(0);
              Socket sock = new Socket(httpProxy)) {
             sock.setSoTimeout(SO_TIMEOUT);
             sock.setTcpNoDelay(false);

             InetSocketAddress externalAddress =
                 new InetSocketAddress(InetAddress.getLocalHost(), ss.getLocalPort());

             out.println("Trying to connect to server socket on " + externalAddress);
             sock.connect(externalAddress);
             try (Socket externalSock = ss.accept()) {
                 // perform some simple checks
                 check(sock.isBound(), "Socket is not bound");
                 check(sock.isConnected(), "Socket is not connected");
                 check(!sock.isClosed(), "Socket should not be closed");
                 check(sock.getSoTimeout() == SO_TIMEOUT,
                         "Socket should have a previously set timeout");
                 check(sock.getTcpNoDelay() ==  false, "NODELAY should be false");

                 simpleDataExchange(sock, externalSock);
             }
         }
     }

     static void check(boolean condition, String message) {
         if (!condition) out.println(message);
     }

     static Exception unexpected(Exception e) {
         out.println("Unexcepted Exception: " + e);
         e.printStackTrace();
         return e;
     }

     // performs a simple exchange of data between the two sockets
     // and throws an exception if there is any problem.
     void simpleDataExchange(Socket s1, Socket s2) throws Exception {
         try (final InputStream i1 = s1.getInputStream();
              final InputStream i2 = s2.getInputStream();
              final OutputStream o1 = s1.getOutputStream();
              final OutputStream o2 = s2.getOutputStream()) {
             startSimpleWriter("simpleWriter1", o1, 100);
             startSimpleWriter("simpleWriter2", o2, 200);
             simpleRead(i2, 100);
             simpleRead(i1, 200);
         }
     }

     void startSimpleWriter(String threadName, final OutputStream os, final int start) {
         (new Thread(new Runnable() {
             public void run() {
                 try { simpleWrite(os, start); }
                 catch (Exception e) {unexpected(e); }
             }}, threadName)).start();
     }

     void simpleWrite(OutputStream os, int start) throws Exception {
         byte b[] = new byte[2];
         for (int i=start; i<start+100; i++) {
             b[0] = (byte) (i / 256);
             b[1] = (byte) (i % 256);
             os.write(b);
         }
     }

     void simpleRead(InputStream is, int start) throws Exception {
         byte b[] = new byte [2];
         for (int i=start; i<start+100; i++) {
             int x = is.read(b);
             if (x == 1)
                 x += is.read(b,1,1);
             if (x!=2)
                 throw new Exception("read error");
             int r = bytes(b[0], b[1]);
             if (r != i)
                 throw new Exception("read " + r + " expected " +i);
         }
     }

     int bytes(byte b1, byte b2) {
         int i1 = (int)b1 & 0xFF;
         int i2 = (int)b2 & 0xFF;
         return i1 * 256 + i2;
     }

     static class ConnectProxyTunnelServer extends Thread {

         private final ServerSocket ss;

         public ConnectProxyTunnelServer() throws IOException {
             ss = new ServerSocket(0);
         }

         @Override
         public void run() {
             try (Socket clientSocket = ss.accept()) {
                 processRequest(clientSocket);
             } catch (Exception e) {
                 out.println("Proxy Failed: " + e);
                 e.printStackTrace();
             } finally {
                 try { ss.close(); } catch (IOException x) { unexpected(x); }
             }
         }

         /**
          * Returns the port on which the proxy is accepting connections.
          */
         public int getLocalPort() {
             return ss.getLocalPort();
         }

         /*
          * Processes the CONNECT request
          */
         private void processRequest(Socket clientSocket) throws Exception {
             MessageHeader mheader = new MessageHeader(clientSocket.getInputStream());
             String statusLine = mheader.getValue(0);

             if (!statusLine.startsWith("CONNECT")) {
                 out.println("proxy server: processes only "
                                   + "CONNECT method requests, recieved: "
                                   + statusLine);
                 return;
             }

             // retrieve the host and port info from the status-line
             InetSocketAddress serverAddr = getConnectInfo(statusLine);

             //open socket to the server
             try (Socket serverSocket = new Socket(serverAddr.getAddress(),
                                                   serverAddr.getPort())) {
                 Forwarder clientFW = new Forwarder(clientSocket.getInputStream(),
                                                    serverSocket.getOutputStream());
                 Thread clientForwarderThread = new Thread(clientFW, "ClientForwarder");
                 clientForwarderThread.start();
                 send200(clientSocket);
                 Forwarder serverFW = new Forwarder(serverSocket.getInputStream(),
                                                    clientSocket.getOutputStream());
                 serverFW.run();
                 clientForwarderThread.join();
             }
         }

         private void send200(Socket clientSocket) throws IOException {
             OutputStream out = clientSocket.getOutputStream();
             PrintWriter pout = new PrintWriter(out);

             pout.println("HTTP/1.1 200 OK");
             pout.println();
             pout.flush();
         }

         /*
          * This method retrieves the hostname and port of the tunnel destination
          * from the request line.
          * @param connectStr
          *        of the form: <i>CONNECT server-name:server-port HTTP/1.x</i>
          */
         static InetSocketAddress getConnectInfo(String connectStr)
             throws Exception
         {
             try {
                 int starti = connectStr.indexOf(' ');
                 int endi = connectStr.lastIndexOf(' ');
                 String connectInfo = connectStr.substring(starti+1, endi).trim();
                 // retrieve server name and port
                 endi = connectInfo.indexOf(':');
                 String name = connectInfo.substring(0, endi);
                 int port = Integer.parseInt(connectInfo.substring(endi+1));
                 return new InetSocketAddress(name, port);
             } catch (Exception e) {
                 out.println("Proxy recieved a request: " + connectStr);
                 throw unexpected(e);
             }
         }
     }

     /* Reads from the given InputStream and writes to the given OutputStream */
     static class Forwarder implements Runnable
     {
         private final InputStream in;
         private final OutputStream os;

         Forwarder(InputStream in, OutputStream os) {
             this.in = in;
             this.os = os;
         }

         @Override
         public void run() {
             try {
                 byte[] ba = new byte[1024];
                 int count;
                 while ((count = in.read(ba)) != -1) {
                     os.write(ba, 0, count);
                 }
             } catch (IOException e) {
                 unexpected(e);
             }
         }
     }
 }
	/*
	* Copyright (c) 2010, 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.
	*
	* 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.
	*/

	/*
	* @test
	* @bug 6370908
	* @summary Add support for HTTP_CONNECT proxy in Socket class
	* @modules java.base/sun.net.www
	* @run main HttpProxy
	* @run main/othervm -Djava.net.preferIPv4Stack=true HttpProxy
	*/

	import java.io.IOException;
	import java.io.InputStream;
	import java.io.OutputStream;
	import java.io.PrintWriter;
	import static java.lang.System.out;
	import java.net.InetAddress;
	import java.net.InetSocketAddress;
	import java.net.Proxy;
	import java.net.ServerSocket;
	import java.net.Socket;
	import sun.net.www.MessageHeader;

	public class HttpProxy {
	final String proxyHost;
	final int proxyPort;
	static final int SO_TIMEOUT = 15000;

	public static void main(String[] args) throws Exception {
	String host;
	int port;
	if (args.length == 0) {
	// Start internal proxy
	ConnectProxyTunnelServer proxy = new ConnectProxyTunnelServer();
	proxy.start();
	host = "localhost";
	port = proxy.getLocalPort();
	out.println("Running with internal proxy: " + host + ":" + port);
	} else if (args.length == 2) {
	host = args[0];
	port = Integer.valueOf(args[1]);
	out.println("Running against specified proxy server: " + host + ":" + port);
	} else {
	System.err.println("Usage: java HttpProxy [<proxy host> <proxy port>]");
	return;
	}

	HttpProxy p = new HttpProxy(host, port);
	p.test();
	}

	public HttpProxy(String proxyHost, int proxyPort) {
	this.proxyHost = proxyHost;
	this.proxyPort = proxyPort;
	}

	void test() throws Exception {
	InetSocketAddress proxyAddress = new InetSocketAddress(proxyHost, proxyPort);
	Proxy httpProxy = new Proxy(Proxy.Type.HTTP, proxyAddress);

	try (ServerSocket ss = new ServerSocket(0);
	Socket sock = new Socket(httpProxy)) {
	sock.setSoTimeout(SO_TIMEOUT);
	sock.setTcpNoDelay(false);

	InetSocketAddress externalAddress =
	new InetSocketAddress(InetAddress.getLocalHost(), ss.getLocalPort());

	out.println("Trying to connect to server socket on " + externalAddress);
	sock.connect(externalAddress);
	try (Socket externalSock = ss.accept()) {
	// perform some simple checks
	check(sock.isBound(), "Socket is not bound");
	check(sock.isConnected(), "Socket is not connected");
	check(!sock.isClosed(), "Socket should not be closed");
	check(sock.getSoTimeout() == SO_TIMEOUT,
	"Socket should have a previously set timeout");
	check(sock.getTcpNoDelay() == false, "NODELAY should be false");

	simpleDataExchange(sock, externalSock);
	}
	}
	}

	static void check(boolean condition, String message) {
	if (!condition) out.println(message);
	}

	static Exception unexpected(Exception e) {
	out.println("Unexcepted Exception: " + e);
	e.printStackTrace();
	return e;
	}

	// performs a simple exchange of data between the two sockets
	// and throws an exception if there is any problem.
	void simpleDataExchange(Socket s1, Socket s2) throws Exception {
	try (final InputStream i1 = s1.getInputStream();
	final InputStream i2 = s2.getInputStream();
	final OutputStream o1 = s1.getOutputStream();
	final OutputStream o2 = s2.getOutputStream()) {
	startSimpleWriter("simpleWriter1", o1, 100);
	startSimpleWriter("simpleWriter2", o2, 200);
	simpleRead(i2, 100);
	simpleRead(i1, 200);
	}
	}

	void startSimpleWriter(String threadName, final OutputStream os, final int start) {
	(new Thread(new Runnable() {
	public void run() {
	try { simpleWrite(os, start); }
	catch (Exception e) {unexpected(e); }
	}}, threadName)).start();
	}

	void simpleWrite(OutputStream os, int start) throws Exception {
	byte b[] = new byte[2];
	for (int i=start; i<start+100; i++) {
	b[0] = (byte) (i / 256);
	b[1] = (byte) (i % 256);
	os.write(b);
	}
	}

	void simpleRead(InputStream is, int start) throws Exception {
	byte b[] = new byte [2];
	for (int i=start; i<start+100; i++) {
	int x = is.read(b);
	if (x == 1)
	x += is.read(b,1,1);
	if (x!=2)
	throw new Exception("read error");
	int r = bytes(b[0], b[1]);
	if (r != i)
	throw new Exception("read " + r + " expected " +i);
	}
	}

	int bytes(byte b1, byte b2) {
	int i1 = (int)b1 & 0xFF;
	int i2 = (int)b2 & 0xFF;
	return i1 * 256 + i2;
	}

	static class ConnectProxyTunnelServer extends Thread {

	private final ServerSocket ss;

	public ConnectProxyTunnelServer() throws IOException {
	ss = new ServerSocket(0);
	}

	@Override
	public void run() {
	try (Socket clientSocket = ss.accept()) {
	processRequest(clientSocket);
	} catch (Exception e) {
	out.println("Proxy Failed: " + e);
	e.printStackTrace();
	} finally {
	try { ss.close(); } catch (IOException x) { unexpected(x); }
	}
	}

	/**
	* Returns the port on which the proxy is accepting connections.
	*/
	public int getLocalPort() {
	return ss.getLocalPort();
	}

	/*
	* Processes the CONNECT request
	*/
	private void processRequest(Socket clientSocket) throws Exception {
	MessageHeader mheader = new MessageHeader(clientSocket.getInputStream());
	String statusLine = mheader.getValue(0);

	if (!statusLine.startsWith("CONNECT")) {
	out.println("proxy server: processes only "
	+ "CONNECT method requests, recieved: "
	+ statusLine);
	return;
	}

	// retrieve the host and port info from the status-line
	InetSocketAddress serverAddr = getConnectInfo(statusLine);

	//open socket to the server
	try (Socket serverSocket = new Socket(serverAddr.getAddress(),
	serverAddr.getPort())) {
	Forwarder clientFW = new Forwarder(clientSocket.getInputStream(),
	serverSocket.getOutputStream());
	Thread clientForwarderThread = new Thread(clientFW, "ClientForwarder");
	clientForwarderThread.start();
	send200(clientSocket);
	Forwarder serverFW = new Forwarder(serverSocket.getInputStream(),
	clientSocket.getOutputStream());
	serverFW.run();
	clientForwarderThread.join();
	}
	}

	private void send200(Socket clientSocket) throws IOException {
	OutputStream out = clientSocket.getOutputStream();
	PrintWriter pout = new PrintWriter(out);

	pout.println("HTTP/1.1 200 OK");
	pout.println();
	pout.flush();
	}

	/*
	* This method retrieves the hostname and port of the tunnel destination
	* from the request line.
	* @param connectStr
	* of the form: <i>CONNECT server-name:server-port HTTP/1.x</i>
	*/
	static InetSocketAddress getConnectInfo(String connectStr)
	throws Exception
	{
	try {
	int starti = connectStr.indexOf(' ');
	int endi = connectStr.lastIndexOf(' ');
	String connectInfo = connectStr.substring(starti+1, endi).trim();
	// retrieve server name and port
	endi = connectInfo.indexOf(':');
	String name = connectInfo.substring(0, endi);
	int port = Integer.parseInt(connectInfo.substring(endi+1));
	return new InetSocketAddress(name, port);
	} catch (Exception e) {
	out.println("Proxy recieved a request: " + connectStr);
	throw unexpected(e);
	}
	}
	}

	/* Reads from the given InputStream and writes to the given OutputStream */
	static class Forwarder implements Runnable
	{
	private final InputStream in;
	private final OutputStream os;

	Forwarder(InputStream in, OutputStream os) {
	this.in = in;
	this.os = os;
	}

	@Override
	public void run() {
	try {
	byte[] ba = new byte[1024];
	int count;
	while ((count = in.read(ba)) != -1) {
	os.write(ba, 0, count);
	}
	} catch (IOException e) {
	unexpected(e);
	}
	}
	}
	}