Showing the changes to java/pkg/sun/rmi/transport/proxy/HttpAwareServerSocket.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 1996, 2005, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | +package sun.rmi.transport.proxy; | |
| 26 | + | |
| 27 | +import java.io.BufferedInputStream; | |
| 28 | +import java.io.IOException; | |
| 29 | +import java.net.ServerSocket; | |
| 30 | +import java.net.Socket; | |
| 31 | +import sun.rmi.runtime.Log; | |
| 32 | + | |
| 33 | +/** | |
| 34 | + * The HttpAwareServerSocket class extends the java.net.ServerSocket | |
| 35 | + * class. It behaves like a ServerSocket, except that if | |
| 36 | + * the first four bytes of an accepted socket are the letters "POST", | |
| 37 | + * then it returns an HttpReceiveSocket instead of a java.net.Socket. | |
| 38 | + * This means that the accept method blocks until four bytes have been | |
| 39 | + * read from the new socket's input stream. | |
| 40 | + */ | |
| 41 | +class HttpAwareServerSocket extends ServerSocket { | |
| 42 | + | |
| 43 | + /** | |
| 44 | + * Create a server socket on a specified port. | |
| 45 | + * @param port the port | |
| 46 | + * @exception IOException IO error when opening the socket. | |
| 47 | + */ | |
| 48 | + public HttpAwareServerSocket(int port) throws IOException | |
| 49 | + { | |
| 50 | + super(port); | |
| 51 | + } | |
| 52 | + | |
| 53 | + /** | |
| 54 | + * Create a server socket, bind it to the specified local port | |
| 55 | + * and listen to it. You can connect to an annonymous port by | |
| 56 | + * specifying the port number to be 0. <i>backlog</i> specifies | |
| 57 | + * how many connection requests the system will queue up while waiting | |
| 58 | + * for the ServerSocket to execute accept(). | |
| 59 | + * @param port the specified port | |
| 60 | + * @param backlog the number of queued connect requests pending accept | |
| 61 | + */ | |
| 62 | + public HttpAwareServerSocket(int port, int backlog) throws IOException | |
| 63 | + { | |
| 64 | + super(port, backlog); | |
| 65 | + } | |
| 66 | + | |
| 67 | + /** | |
| 68 | + * Accept a connection. This method will block until the connection | |
| 69 | + * is made and four bytes can be read from the input stream. | |
| 70 | + * If the first four bytes are "POST", then an HttpReceiveSocket is | |
| 71 | + * returned, which will handle the HTTP protocol wrapping. | |
| 72 | + * Otherwise, a WrappedSocket is returned. The input stream will be | |
| 73 | + * reset to the beginning of the transmission. | |
| 74 | + * In either case, a BufferedInputStream will already be on top of | |
| 75 | + * the underlying socket's input stream. | |
| 76 | + * @exception IOException IO error when waiting for the connection. | |
| 77 | + */ | |
| 78 | + public Socket accept() throws IOException | |
| 79 | + { | |
| 80 | + Socket socket = super.accept(); | |
| 81 | + BufferedInputStream in = | |
| 82 | + new BufferedInputStream(socket.getInputStream()); | |
| 83 | + | |
| 84 | + RMIMasterSocketFactory.proxyLog.log(Log.BRIEF, | |
| 85 | + "socket accepted (checking for POST)"); | |
| 86 | + | |
| 87 | + in.mark(4); | |
| 88 | + boolean isHttp = (in.read() == 'P') && | |
| 89 | + (in.read() == 'O') && | |
| 90 | + (in.read() == 'S') && | |
| 91 | + (in.read() == 'T'); | |
| 92 | + in.reset(); | |
| 93 | + | |
| 94 | + if (RMIMasterSocketFactory.proxyLog.isLoggable(Log.BRIEF)) { | |
| 95 | + RMIMasterSocketFactory.proxyLog.log(Log.BRIEF, | |
| 96 | + (isHttp ? "POST found, HTTP socket returned" : | |
| 97 | + "POST not found, direct socket returned")); | |
| 98 | + } | |
| 99 | + | |
| 100 | + if (isHttp) | |
| 101 | + return new HttpReceiveSocket(socket, in, null); | |
| 102 | + else | |
| 103 | + return new WrappedSocket(socket, in, null); | |
| 104 | + } | |
| 105 | + | |
| 106 | + /** | |
| 107 | + * Return the implementation address and implementation port of | |
| 108 | + * the HttpAwareServerSocket as a String. | |
| 109 | + */ | |
| 110 | + public String toString() | |
| 111 | + { | |
| 112 | + return "HttpAware" + super.toString(); | |
| 113 | + } | |
| 114 | +} | |