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annotate src/net/sourceforge/jsocks/CProxy.java @ 402:14aa0621aa7d stable-1.9.0

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Backed out changeset 2f2b5a244a4d
author Carl Byington <carl@five-ten-sg.com>
date Mon, 20 Oct 2014 19:14:39 -0700
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1 package net.sourceforge.jsocks;
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2 import java.net.*;
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3 import java.io.*;
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4 import java.util.Hashtable;
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5 import java.util.Enumeration;
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6
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7 /**
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8 Abstract class CProxy, base for classes Socks4Proxy and Socks5Proxy.
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9 Defines methods for specifying default proxy, to be
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10 used by all classes of this package.
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11 */
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12
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13 public abstract class CProxy{
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14
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15 //Data members
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16 protected InetRange directHosts = new InetRange();
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17
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18 protected InetAddress proxyIP = null;
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19 protected String proxyHost = null;
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20 protected int proxyPort;
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21 protected Socket proxySocket = null;
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22
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23 protected InputStream in;
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24 protected OutputStream out;
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25
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26 protected int version;
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27
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28 protected CProxy chainProxy = null;
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29
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30
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31 //Protected static/class variables
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32 protected static CProxy defaultProxy = null;
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33
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34 //Constructors
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35 //====================
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36 CProxy(CProxy chainProxy,
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37 String proxyHost,int proxyPort)throws UnknownHostException{
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38 this.chainProxy = chainProxy;
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39 this.proxyHost = proxyHost;
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40
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41 if(chainProxy == null)
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42 this.proxyIP = InetAddress.getByName(proxyHost);
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43
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44 this.proxyPort = proxyPort;
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45 }
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46
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47
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48 CProxy(String proxyHost,int proxyPort)throws UnknownHostException{
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49 this(null,proxyHost,proxyPort);
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50 }
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51
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52 CProxy(CProxy chainProxy,InetAddress proxyIP,int proxyPort){
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53 this.chainProxy = chainProxy;
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54 this.proxyIP = proxyIP;
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55 this.proxyPort = proxyPort;
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56 }
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57
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58 CProxy(InetAddress proxyIP,int proxyPort){
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59 this(null,proxyIP,proxyPort);
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60 }
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61
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62 CProxy(CProxy p){
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63 this.proxyIP = p.proxyIP;
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64 this.proxyPort = p.proxyPort;
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65 this.version = p.version;
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66 this.directHosts = p.directHosts;
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67 }
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68
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69 //Public instance methods
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70 //========================
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71
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72 /**
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73 Get the port on which proxy server is running.
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74 * @return CProxy port.
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75 */
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76 public int getPort(){
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77 return proxyPort;
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78 }
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79 /**
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80 Get the ip address of the proxy server host.
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81 * @return CProxy InetAddress.
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82 */
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83 public InetAddress getInetAddress(){
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84 return proxyIP;
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85 }
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86 /**
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87 * Adds given ip to the list of direct addresses.
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88 * This machine will be accessed without using proxy.
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89 */
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90 public void addDirect(InetAddress ip){
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91 directHosts.add(ip);
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92 }
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93 /**
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94 * Adds host to the list of direct addresses.
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95 * This machine will be accessed without using proxy.
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96 */
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97 public boolean addDirect(String host){
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98 return directHosts.add(host);
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99 }
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100 /**
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101 * Adds given range of addresses to the lsit of direct addresses,
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102 * machines within this range will be accessed without using proxy.
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103 */
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104 public void addDirect(InetAddress from,InetAddress to){
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105 directHosts.add(from,to);
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106 }
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107 /**
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108 * Sets given InetRange as the list of direct address, previous
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109 * list will be discarded, any changes done previously with
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110 * addDirect(Inetaddress) will be lost.
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111 * The machines in this range will be accessed without using proxy.
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112 * @param ir InetRange which should be used to look up direct addresses.
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113 * @see InetRange
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114 */
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115 public void setDirect(InetRange ir){
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116 directHosts = ir;
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117 }
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118
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119 /**
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120 Get the list of direct hosts.
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121 * @return Current range of direct address as InetRange object.
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122 * @see InetRange
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123 */
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124 public InetRange getDirect(){
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125 return directHosts;
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126 }
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127 /**
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128 Check wether the given host is on the list of direct address.
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129 @param host Host name to check.
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130 * @return true if the given host is specified as the direct addresses.
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131 */
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132 public boolean isDirect(String host){
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133 return directHosts.contains(host);
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134 }
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135 /**
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136 Check wether the given host is on the list of direct addresses.
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137 @param host Host address to check.
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138 * @return true if the given host is specified as the direct address.
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139 */
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140 public boolean isDirect(InetAddress host){
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141 return directHosts.contains(host);
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142 }
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143 /**
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144 Set the proxy which should be used to connect to given proxy.
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145 @param chainProxy CProxy to use to connect to this proxy.
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146 */
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147 public void setChainProxy(CProxy chainProxy){
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148 this.chainProxy = chainProxy;
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149 }
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150
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151 /**
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152 Get proxy which is used to connect to this proxy.
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153 @return CProxy which is used to connect to this proxy, or null
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154 if proxy is to be contacted directly.
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155 */
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156 public CProxy getChainProxy(){
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157 return chainProxy;
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158 }
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159
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160 /**
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161 Get string representation of this proxy.
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162 * @returns string in the form:proxyHost:proxyPort \t Version versionNumber
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163 */
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164 public String toString(){
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165 return (""+proxyIP.getHostName()+":"+proxyPort+"\tVersion "+version);
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166 }
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167
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168
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169 //Public Static(Class) Methods
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170 //==============================
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171
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172 /**
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173 * Sets SOCKS4 proxy as default.
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174 @param hostName Host name on which SOCKS4 server is running.
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175 @param port Port on which SOCKS4 server is running.
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176 @param user Username to use for communications with proxy.
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177 */
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178 public static void setDefaultProxy(String hostName,int port,String user)
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179 throws UnknownHostException{
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180 defaultProxy = new Socks4Proxy(hostName,port,user);
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181 }
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182
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183 /**
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184 * Sets SOCKS4 proxy as default.
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185 @param ipAddress Host address on which SOCKS4 server is running.
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186 @param port Port on which SOCKS4 server is running.
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187 @param user Username to use for communications with proxy.
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188 */
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189 public static void setDefaultProxy(InetAddress ipAddress,int port,
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190 String user){
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191 defaultProxy = new Socks4Proxy(ipAddress,port,user);
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192 }
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193 /**
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194 * Sets SOCKS5 proxy as default.
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195 * Default proxy only supports no-authentication.
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196 @param hostName Host name on which SOCKS5 server is running.
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197 @param port Port on which SOCKS5 server is running.
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198 */
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199 public static void setDefaultProxy(String hostName,int port)
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200 throws UnknownHostException{
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201 defaultProxy = new Socks5Proxy(hostName,port);
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202 }
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203 /**
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204 * Sets SOCKS5 proxy as default.
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205 * Default proxy only supports no-authentication.
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206 @param ipAddress Host address on which SOCKS5 server is running.
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207 @param port Port on which SOCKS5 server is running.
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208 */
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209 public static void setDefaultProxy(InetAddress ipAddress,int port){
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210 defaultProxy = new Socks5Proxy(ipAddress,port);
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211 }
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212 /**
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213 * Sets default proxy.
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214 @param p CProxy to use as default proxy.
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215 */
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216 public static void setDefaultProxy(CProxy p){
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217 defaultProxy = p;
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218 }
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219
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220 /**
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221 Get current default proxy.
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222 * @return Current default proxy, or null if none is set.
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223 */
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224 public static CProxy getDefaultProxy(){
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225 return defaultProxy;
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226 }
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227
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228 /**
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229 Parses strings in the form: host[:port:user:password], and creates
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230 proxy from information obtained from parsing.
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231 <p>
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232 Defaults: port = 1080.<br>
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233 If user specified but not password, creates Socks4Proxy, if user
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234 not specified creates Socks5Proxy, if both user and password are
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235 speciefied creates Socks5Proxy with user/password authentication.
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236 @param proxy_entry String in the form host[:port:user:password]
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237 @return CProxy created from the string, null if entry was somehow
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238 invalid(host unknown for example, or empty string)
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239 */
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240 public static CProxy parseProxy(String proxy_entry){
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241
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242 String proxy_host;
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243 int proxy_port = 1080;
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244 String proxy_user = null;
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245 String proxy_password = null;
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246 CProxy proxy;
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247
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248 java.util.StringTokenizer st = new java.util.StringTokenizer(
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249 proxy_entry,":");
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250 if(st.countTokens() < 1) return null;
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251
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252 proxy_host = st.nextToken();
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253 if(st.hasMoreTokens())
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254 try{
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255 proxy_port = Integer.parseInt(st.nextToken().trim());
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256 }catch(NumberFormatException nfe){}
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257
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258 if(st.hasMoreTokens())
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259 proxy_user = st.nextToken();
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260
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261 if(st.hasMoreTokens())
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262 proxy_password = st.nextToken();
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263
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264 try{
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265 if(proxy_user == null)
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266 proxy = new Socks5Proxy(proxy_host,proxy_port);
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267 else if(proxy_password == null)
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268 proxy = new Socks4Proxy(proxy_host,proxy_port,proxy_user);
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269 else{
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270 proxy = new Socks5Proxy(proxy_host,proxy_port);
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271 UserPasswordAuthentication upa = new UserPasswordAuthentication(
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272 proxy_user, proxy_password);
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273
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274 ((Socks5Proxy)proxy).setAuthenticationMethod(upa.METHOD_ID,upa);
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275 }
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276 }catch(UnknownHostException uhe){
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277 return null;
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278 }
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279
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280 return proxy;
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281 }
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282
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283
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284 //Protected Methods
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285 //=================
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286
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287 protected void startSession()throws SocksException{
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288 try{
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289 if(chainProxy == null)
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290 proxySocket = new Socket(proxyIP,proxyPort);
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291 else if(proxyIP != null)
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292 proxySocket = new SocksSocket(chainProxy,proxyIP,proxyPort);
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293 else
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294 proxySocket = new SocksSocket(chainProxy,proxyHost,proxyPort);
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295
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296 in = proxySocket.getInputStream();
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297 out = proxySocket.getOutputStream();
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298 }catch(SocksException se){
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299 throw se;
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300 }catch(IOException io_ex){
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301 throw new SocksException(SOCKS_PROXY_IO_ERROR,""+io_ex);
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302 }
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parents:
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303 }
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304
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305 protected abstract CProxy copy();
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306 protected abstract ProxyMessage formMessage(int cmd,InetAddress ip,int port);
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307 protected abstract ProxyMessage formMessage(int cmd,String host,int port)
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308 throws UnknownHostException;
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309 protected abstract ProxyMessage formMessage(InputStream in)
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310 throws SocksException,
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311 IOException;
354
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parents: 349
diff changeset
312
349
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313
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
314 protected ProxyMessage connect(InetAddress ip,int port)
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
315 throws SocksException{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
316 try{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
317 startSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
318 ProxyMessage request = formMessage(SOCKS_CMD_CONNECT,
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
319 ip,port);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
320 return exchange(request);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
321 }catch(SocksException se){
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
322 endSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
323 throw se;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
324 }
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
325 }
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
326 protected ProxyMessage connect(String host,int port)
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
327 throws UnknownHostException,SocksException{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
328 try{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
329 startSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
330 ProxyMessage request = formMessage(SOCKS_CMD_CONNECT,
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
331 host,port);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
332 return exchange(request);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
333 }catch(SocksException se){
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
334 endSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
335 throw se;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
336 }
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
337 }
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
338
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
339 protected ProxyMessage bind(InetAddress ip,int port)
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
340 throws SocksException{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
341 try{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
342 startSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
343 ProxyMessage request = formMessage(SOCKS_CMD_BIND,
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
344 ip,port);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
345 return exchange(request);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
346 }catch(SocksException se){
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
347 endSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
348 throw se;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
349 }
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
350 }
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
351 protected ProxyMessage bind(String host,int port)
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
352 throws UnknownHostException,SocksException{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
353 try{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
354 startSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
355 ProxyMessage request = formMessage(SOCKS_CMD_BIND,
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
356 host,port);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
357 return exchange(request);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
358 }catch(SocksException se){
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
359 endSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
360 throw se;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
361 }
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
362 }
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
363
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
364 protected ProxyMessage accept()
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
365 throws IOException,SocksException{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
366 ProxyMessage msg;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
367 try{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
368 msg = formMessage(in);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
369 }catch(InterruptedIOException iioe){
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
370 throw iioe;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
371 }catch(IOException io_ex){
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
372 endSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
373 throw new SocksException(SOCKS_PROXY_IO_ERROR,"While Trying accept:"
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
374 +io_ex);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
375 }
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
376 return msg;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
377 }
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
378
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
379 protected ProxyMessage udpAssociate(InetAddress ip,int port)
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
380 throws SocksException{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
381 try{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
382 startSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
383 ProxyMessage request = formMessage(SOCKS_CMD_UDP_ASSOCIATE,
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
384 ip,port);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
385 if(request != null)
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
386 return exchange(request);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
387 }catch(SocksException se){
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
388 endSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
389 throw se;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
390 }
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
391 //Only get here if request was null
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
392 endSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
393 throw new SocksException(SOCKS_METHOD_NOTSUPPORTED,
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
394 "This version of proxy does not support UDP associate, use version 5");
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
395 }
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
396 protected ProxyMessage udpAssociate(String host,int port)
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
397 throws UnknownHostException,SocksException{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
398 try{
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
399 startSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
400 ProxyMessage request = formMessage(SOCKS_CMD_UDP_ASSOCIATE,
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
401 host,port);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
402 if(request != null) return exchange(request);
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
403 }catch(SocksException se){
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
404 endSession();
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
405 throw se;
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
406 }
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
407 //Only get here if request was null
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
408 endSession();
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
409 throw new SocksException(SOCKS_METHOD_NOTSUPPORTED,
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
410 "This version of proxy does not support UDP associate, use version 5");
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
411 }
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
412
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
413
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
414 protected void endSession(){
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
415 try{
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
416 if(proxySocket!=null) proxySocket.close();
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
417 proxySocket = null;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
418 }catch(IOException io_ex){
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
419 }
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
420 }
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
421
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
422 /**
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
423 *Sends the request to SOCKS server
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
424 */
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
425 protected void sendMsg(ProxyMessage msg)throws SocksException,
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
426 IOException{
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
427 msg.write(out);
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
428 }
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
429
354
3c16508419fe update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents: 349
diff changeset
430 /**
349
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
431 * Reads the reply from the SOCKS server
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
432 */
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
433 protected ProxyMessage readMsg()throws SocksException,
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
434 IOException{
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
435 return formMessage(in);
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
436 }
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
437 /**
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
438 *Sends the request reads reply and returns it
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
439 *throws exception if something wrong with IO
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
440 *or the reply code is not zero
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
441 */
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
442 protected ProxyMessage exchange(ProxyMessage request)
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
443 throws SocksException{
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
444 ProxyMessage reply;
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
445 try{
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
446 request.write(out);
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
447 reply = formMessage(in);
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
448 }catch(SocksException s_ex){
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
449 throw s_ex;
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
450 }catch(IOException ioe){
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
451 throw(new SocksException(SOCKS_PROXY_IO_ERROR,""+ioe));
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
452 }
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
453 return reply;
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
454 }
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
455
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
456
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
457 //Private methods
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
458 //===============
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
459
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
460
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
461 //Constants
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
462
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
463 public static final int SOCKS_SUCCESS =0;
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
464 public static final int SOCKS_FAILURE =1;
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
465 public static final int SOCKS_BADCONNECT =2;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
466 public static final int SOCKS_BADNETWORK =3;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
467 public static final int SOCKS_HOST_UNREACHABLE =4;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
468 public static final int SOCKS_CONNECTION_REFUSED =5;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
469 public static final int SOCKS_TTL_EXPIRE =6;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
470 public static final int SOCKS_CMD_NOT_SUPPORTED =7;
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
471 public static final int SOCKS_ADDR_NOT_SUPPORTED =8;
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
472
205ee2873330 update jsocks to 2011-03-19
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
473 public static final int SOCKS_NO_PROXY =1<<16;
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474 public static final int SOCKS_PROXY_NO_CONNECT =2<<16;
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475 public static final int SOCKS_PROXY_IO_ERROR =3<<16;
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476 public static final int SOCKS_AUTH_NOT_SUPPORTED =4<<16;
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477 public static final int SOCKS_AUTH_FAILURE =5<<16;
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478 public static final int SOCKS_JUST_ERROR =6<<16;
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479
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480 public static final int SOCKS_DIRECT_FAILED =7<<16;
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481 public static final int SOCKS_METHOD_NOTSUPPORTED =8<<16;
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482
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483
354
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484 public static final int SOCKS_CMD_CONNECT =0x1;
349
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485 static final int SOCKS_CMD_BIND =0x2;
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486 static final int SOCKS_CMD_UDP_ASSOCIATE =0x3;
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487
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488 }