129 lines
4.6 KiB
Java
129 lines
4.6 KiB
Java
/*
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* Copyright (c) 1996, 2000, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.rmi.transport.proxy;
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import java.io.*;
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import java.net.Socket;
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import java.net.InetAddress;
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/**
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* The HttpReceiveSocket class extends the WrappedSocket class
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* by removing the HTTP protocol packaging from the input stream and
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* formatting the output stream as an HTTP response.
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*
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* NOTES:
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*
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* The output stream must be explicitly closed for the output to be
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* sent, since the HttpResponseOutputStream needs to buffer the entire
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* transmission to be able to fill in the content-length field of
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* the HTTP header. Closing this socket will do this.
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*
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* The constructor blocks until the HTTP protocol header
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* is received. This could be fixed, but I don't think it should be a
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* problem because this object would not be created unless the
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* HttpAwareServerSocket has detected the beginning of the header
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* anyway, so the rest should be there.
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*
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* This socket can only be used to process one POST and reply to it.
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* Another message would be received on a newly accepted socket anyway.
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*/
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public class HttpReceiveSocket extends WrappedSocket implements RMISocketInfo {
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/** true if the HTTP header has pushed through the output stream yet */
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private boolean headerSent = false;
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/**
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* Layer on top of a pre-existing Socket object, and use specified
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* input and output streams.
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* @param socket the pre-existing socket to use
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* @param in the InputStream to use for this socket (can be null)
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* @param out the OutputStream to use for this socket (can be null)
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*/
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public HttpReceiveSocket(Socket socket, InputStream in, OutputStream out)
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throws IOException
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{
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super(socket, in, out);
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this.in = new HttpInputStream(in != null ? in :
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socket.getInputStream());
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this.out = (out != null ? out :
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socket.getOutputStream());
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}
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/**
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* Indicate that this socket is not reusable.
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*/
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public boolean isReusable()
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{
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return false;
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}
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/**
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* Get the address to which this socket is connected. "null" is always
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* returned (to indicate an unknown address) because the originating
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* host's IP address cannot be reliably determined: both because the
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* request probably went through a proxy server, and because if it was
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* delivered by a local forwarder (CGI script or servlet), we do NOT
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* want it to appear as if the call is coming from the local host (in
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* case the remote object makes access control decisions based on the
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* "client host" of a remote call; see bugid 4399040).
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*/
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public InetAddress getInetAddress() {
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return null;
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}
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/**
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* Get an OutputStream for this socket.
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*/
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public OutputStream getOutputStream() throws IOException
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{
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if (!headerSent) { // could this be done in constructor??
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DataOutputStream dos = new DataOutputStream(out);
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dos.writeBytes("HTTP/1.0 200 OK\r\n");
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dos.flush();
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headerSent = true;
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out = new HttpOutputStream(out);
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}
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return out;
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}
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/**
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* Close the socket.
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*/
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public synchronized void close() throws IOException
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{
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getOutputStream().close(); // make sure response is sent
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socket.close();
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}
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/**
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* Return string representation of the socket.
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*/
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public String toString()
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{
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return "HttpReceive" + socket.toString();
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}
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}
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