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annotate src/myVncProxy/HTTPConnectSocket.java @ 0:3cb9db416529

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create MulticastVncProxy repository
author Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
date Wed, 07 Sep 2011 04:20:32 +0900
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3cb9db416529 create MulticastVncProxy repository
Yu Taninari <you@cr.ie.u-ryukyu.ac.jp>
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1 package myVncProxy;
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2 //
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3 // Copyright (C) 2002 Constantin Kaplinsky, Inc. All Rights Reserved.
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4 //
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5 // This is free software; you can redistribute it and/or modify
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6 // it under the terms of the GNU General Public License as published by
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7 // the Free Software Foundation; either version 2 of the License, or
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8 // (at your option) any later version.
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9 //
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10 // This software is distributed in the hope that it will be useful,
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11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 // GNU General Public License for more details.
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14 //
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15 // You should have received a copy of the GNU General Public License
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16 // along with this software; if not, write to the Free Software
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17 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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18 // USA.
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19 //
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20
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21 //
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22 // HTTPConnectSocket.java together with HTTPConnectSocketFactory.java
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23 // implement an alternate way to connect to VNC servers via one or two
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24 // HTTP proxies supporting the HTTP CONNECT method.
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25 //
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26
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27 import java.net.*;
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28 import java.io.*;
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29
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30 class HTTPConnectSocket extends Socket {
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31
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32 public HTTPConnectSocket(String host, int port,
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33 String proxyHost, int proxyPort)
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34 throws IOException {
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35
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36 // Connect to the specified HTTP proxy
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37 super(proxyHost, proxyPort);
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38
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39 // Send the CONNECT request
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40 getOutputStream().write(("CONNECT " + host + ":" + port +
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41 " HTTP/1.0\r\n\r\n").getBytes());
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42
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43 // Read the first line of the response
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44 DataInputStream is = new DataInputStream(getInputStream());
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45 String str = is.readLine();
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46
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47 // Check the HTTP error code -- it should be "200" on success
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48 if (!str.startsWith("HTTP/1.0 200 ")) {
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49 if (str.startsWith("HTTP/1.0 "))
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50 str = str.substring(9);
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51 throw new IOException("Proxy reports \"" + str + "\"");
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52 }
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53
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54 // Success -- skip remaining HTTP headers
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55 do {
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56 str = is.readLine();
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57 } while (str.length() != 0);
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58 }
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59 }
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