| /* |
| * Copyright (c) 1998, 2008, 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. |
| */ |
| |
| /* |
| */ |
| |
| import java.io.*; |
| import java.net.*; |
| import java.rmi.*; |
| import java.rmi.server.*; |
| import java.util.zip.*; |
| |
| |
| public class MultiSocketFactory { |
| |
| private static RMISocketFactory def = |
| RMISocketFactory.getDefaultSocketFactory(); |
| |
| |
| public static class ServerFactory |
| implements RMIServerSocketFactory, Serializable |
| { |
| |
| private String protocol; |
| private byte[] data; |
| |
| public ServerFactory(String protocol, byte[] data) { |
| this.protocol = protocol; |
| this.data = data; |
| } |
| |
| public ServerSocket createServerSocket(int port) throws IOException |
| { |
| if (protocol.equals("compress")) { |
| return new CompressServerSocket(port); |
| |
| } else if (protocol.equals("xor")) { |
| if (data == null || data.length != 1) |
| throw new IOException("invalid argument for XOR protocol"); |
| return new XorServerSocket(port, data[0]); |
| |
| } |
| |
| return def.createServerSocket(port); |
| } |
| } |
| |
| public static class ClientFactory |
| implements RMIClientSocketFactory, Serializable |
| { |
| |
| private String protocol; |
| private byte[] data; |
| |
| public ClientFactory(String protocol, byte[] data) { |
| this.protocol = protocol; |
| this.data = data; |
| } |
| |
| public Socket createSocket(String host, int port) |
| throws IOException |
| { |
| if (protocol.equals("compress")) { |
| return new CompressSocket(host, port); |
| |
| } else if (protocol.equals("xor")) { |
| if (data == null || data.length != 1) |
| throw new IOException("invalid argument for XOR protocol"); |
| return new XorSocket(host, port, data[0]); |
| |
| } |
| |
| return def.createSocket(host, port); |
| } |
| } |
| |
| static class CompressSocket extends Socket { |
| private InputStream in; |
| private OutputStream out; |
| public CompressSocket() { super(); } |
| public CompressSocket(String host, int port) throws IOException { |
| super(host, port); |
| } |
| public InputStream getInputStream() throws IOException { |
| if (in == null) { |
| in = new CompressInputStream(super.getInputStream()); |
| } |
| return in; |
| } |
| public OutputStream getOutputStream() throws IOException { |
| if (out == null) { |
| out = new CompressOutputStream(super.getOutputStream()); |
| } |
| return out; |
| } |
| } |
| |
| static class CompressServerSocket extends ServerSocket { |
| public CompressServerSocket(int port) throws IOException { |
| super(port); |
| } |
| public Socket accept() throws IOException { |
| Socket s = new CompressSocket(); |
| implAccept(s); |
| return s; |
| } |
| } |
| |
| static class XorSocket extends Socket { |
| private byte pattern; |
| private InputStream in; |
| private OutputStream out; |
| public XorSocket(byte pattern) { super(); this.pattern = pattern; } |
| public XorSocket(String host, int port, byte pattern) |
| throws IOException |
| { |
| super(host, port); |
| this.pattern = pattern; |
| } |
| public InputStream getInputStream() throws IOException { |
| if (in == null) { |
| in = new XorInputStream(super.getInputStream(), pattern); |
| } |
| return in; |
| } |
| public OutputStream getOutputStream() throws IOException { |
| if (out == null) { |
| out = new XorOutputStream(super.getOutputStream(), pattern); |
| } |
| return out; |
| } |
| } |
| |
| static class XorServerSocket extends ServerSocket { |
| private byte pattern; |
| public XorServerSocket(int port, byte pattern) throws IOException { |
| super(port); |
| this.pattern = pattern; |
| } |
| public Socket accept() throws IOException { |
| Socket s = new XorSocket(pattern); |
| implAccept(s); |
| return s; |
| } |
| } |
| |
| static class XorOutputStream extends FilterOutputStream { |
| private byte pattern; |
| public XorOutputStream(OutputStream out, byte pattern) { |
| super(out); |
| this.pattern = pattern; |
| } |
| public void write(int b) throws IOException { |
| out.write(b ^ pattern); |
| out.flush(); |
| } |
| public void write(byte b[], int off, int len) throws IOException { |
| for (int i = 0; i < len; i++) |
| write(b[off + i]); |
| } |
| } |
| |
| static class XorInputStream extends FilterInputStream { |
| private byte pattern; |
| public XorInputStream(InputStream in, byte pattern) { |
| super(in); |
| this.pattern = pattern; |
| } |
| public int read() throws IOException { |
| int b = in.read(); |
| // System.out.print("BEFORE: " + Integer.toHexString(b)); |
| if (b != -1) |
| b = (b ^ pattern) & 0xFF; |
| // System.out.println("\tAFTER: " + Integer.toHexString(b)); |
| return b; |
| } |
| public int read(byte b[], int off, int len) throws IOException { |
| if (len <= 0) { |
| return 0; |
| } |
| |
| int c = read(); |
| if (c == -1) { |
| return -1; |
| } |
| b[off] = (byte)c; |
| |
| int i = 1; |
| /***** |
| try { |
| for (; i < len ; i++) { |
| c = read(); |
| if (c == -1) { |
| break; |
| } |
| if (b != null) { |
| b[off + i] = (byte)c; |
| } |
| } |
| } catch (IOException ee) { |
| } |
| *****/ |
| return i; |
| } |
| } |
| } |