1 | /******************************************************************************
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2 | *
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3 | * Copyright (c) 1998,99 by Mindbright Technology AB, Stockholm, Sweden.
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4 | * www.mindbright.se, [email protected]
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5 | *
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6 | * This program is free software; you can redistribute it and/or modify
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7 | * it under the terms of the GNU General Public License as published by
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8 | * the Free Software Foundation; either version 2 of the License, or
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9 | * (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | *****************************************************************************
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17 | * $Author: mats $
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18 | * $Date: 2000/08/01 22:30:52 $
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19 | * $Name: rel1-2-1 $
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20 | *****************************************************************************/
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21 | package mindbright.ssh;
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22 |
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23 | import java.io.IOException;
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24 | import java.io.FileNotFoundException;
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25 | import java.net.UnknownHostException;
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26 |
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27 | import java.awt.*;
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28 | import java.awt.event.*;
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29 |
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30 | import java.io.InputStream;
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31 | import java.io.ByteArrayOutputStream;
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32 |
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33 | import mindbright.application.MindTunnelCli;
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34 |
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35 | import mindbright.util.AWTConvenience;
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36 |
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37 | public class SSHTunnelingClient extends SSHClient implements Runnable, SSHInteractor {
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38 |
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39 | public static class Logo extends Component {
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40 | Image logo;
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41 |
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42 | public Logo(Image logo) {
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43 | this.logo = logo;
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44 | }
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45 |
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46 | public Dimension getMinimumSize() {
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47 | return getPreferredSize();
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48 | }
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49 |
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50 | public Dimension getPreferredSize() {
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51 | int width = -1;
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52 | int height = -1;
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53 | boolean ready = false;
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54 |
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55 | while (!ready) {
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56 | width = logo.getWidth(null);
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57 | height = logo.getHeight(null);
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58 | if(width != -1 && height != -1) {
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59 | ready = true;
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60 | }
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61 | Thread.yield();
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62 | }
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63 | Dimension dim = new Dimension(width, height);
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64 |
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65 | return dim;
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66 | }
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67 |
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68 | public void paint(Graphics g) {
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69 | if(logo == null)
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70 | return;
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71 | Dimension d = getSize();
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72 | g.drawImage(logo, 0, 0, d.width, d.height, this);
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73 | }
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74 | }
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75 |
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76 | public static final boolean expires = false;
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77 | public static final boolean licensed = false;
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78 |
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79 | public static final long validFrom = 965157940452L; // 000801/21:25
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80 | public static final long validTime = (33L * 24L * 60L * 60L * 1000L);
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81 |
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82 | public boolean verbose = false;
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83 | public boolean listMode = false;
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84 | public boolean haveTunnelDialog = false;
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85 | public boolean haveSCPDialog = false;
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86 | public boolean haveProxyDialog = false;
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87 | public boolean haveServer = false;
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88 |
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89 | Thread clientThread = null;
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90 |
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91 | MindTunnelCli tunnelClient;
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92 |
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93 | Frame parent;
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94 |
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95 | int logoPlacement;
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96 |
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97 | SSHPropertyHandler propsHandler;
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98 |
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99 | public SSHTunnelingClient(SSHPropertyHandler propsHandler, MindTunnelCli tunnelClient) {
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100 | super(propsHandler, propsHandler);
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101 |
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102 | this.propsHandler = propsHandler;
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103 | this.interactor = this; // !!! OUCH
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104 |
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105 | this.tunnelClient = tunnelClient;
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106 |
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107 | propsHandler.setInteractor(this);
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108 | propsHandler.setClient(this);
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109 | }
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110 |
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111 | boolean hasExpired() {
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112 | boolean expired = false;
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113 | long now = System.currentTimeMillis();
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114 |
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115 | if(licensed)
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116 | return false;
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117 |
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118 | if(expires) {
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119 | int daysRemaining = (int)((validTime - (now - validFrom)) / (1000L * 60L * 60L * 24L));
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120 | if(daysRemaining <= 0) {
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121 | alertDialog("This is a demo version of MindTunnel, it has expired!");
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122 | expired = true;
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123 | } else {
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124 | alertDialog("This is a demo version of MindTunnel, it will expire in " + daysRemaining + " days");
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125 | }
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126 | } else {
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127 | int daysOld = (int)((now - validFrom) / (1000L * 60L * 60L * 24L));
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128 | alertDialog("This is a demo version of MindTunnel, it is " + daysOld + " days old.");
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129 | }
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130 | return expired;
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131 | }
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132 |
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133 | public SSHPropertyHandler getPropertyHandler() {
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134 | return propsHandler;
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135 | }
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136 |
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137 | public void run() {
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138 | clientThread = Thread.currentThread();
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139 |
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140 | String srv = propsHandler.getProperty("server");
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141 | if(srv != null && srv.trim().length() != 0) {
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142 | haveServer = true;
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143 | }
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144 |
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145 | showMainWindow();
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146 |
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147 | if(hasExpired()) {
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148 | parent.dispose();
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149 | return;
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150 | }
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151 |
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152 | if(NETSCAPE_SECURITY_MODEL) {
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153 | try {
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154 | netscape.security.PrivilegeManager.enablePrivilege("TerminalEmulator");
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155 | } catch (netscape.security.ForbiddenTargetException e) {
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156 | alertDialog("Full network access denied, normal applet security applies");
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157 | }
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158 | }
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159 |
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160 | while(true) {
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161 | parent.setTitle(SSH.VER_MINDTUNL + " (offline)");
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162 | updateButtons();
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163 |
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164 | if(listMode) {
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165 | choiceHosts.requestFocus();
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166 | } else if(haveServer) {
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167 | textUser.requestFocus();
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168 | } else {
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169 | textSrv.requestFocus();
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170 | }
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171 |
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172 | try {
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173 | // This starts a connection to the sshd and all the related stuff...
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174 | //
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175 | bootSSH(true);
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176 |
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177 | parent.setTitle(propsHandler.getProperty("usrname") +
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178 | "@" + propsHandler.getProperty("server") +
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179 | " (online)");
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180 |
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181 | // Tell MindTunnelCli that we are now online
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182 | //
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183 | tunnelClient.online();
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184 |
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185 | // Join main receiver channel thread and wait for session to end
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186 | //
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187 | controller.waitForExit();
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188 |
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189 | } catch(SSHClient.AuthFailException e) {
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190 | alertDialog(e.getMessage());
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191 | propsHandler.clearPasswords();
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192 |
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193 | } catch(UnknownHostException e) {
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194 | String host = e.getMessage();
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195 | String msg;
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196 | if(propsHandler.getProperty("proxytype").equals("none")) {
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197 | msg = "Unknown host: " + host;
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198 | } else {
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199 | msg = "Unknown proxy host: " + host;
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200 | }
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201 | alertDialog(msg);
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202 | propsHandler.clearServerSetting();
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203 |
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204 | } catch(FileNotFoundException e) {
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205 | alertDialog("File not found: " + e.getMessage());
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206 |
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207 | } catch(Exception e) {
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208 | String msg = e.getMessage();
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209 | if(msg == null || msg.trim().length() == 0)
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210 | msg = e.toString();
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211 | msg = "Error connecting to " + propsHandler.getProperty("server") + ", reason: " + msg;
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212 | if(SSH.DEBUGMORE) {
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213 | System.out.println("If an error occured, please send the below stacktrace to [email protected]");
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214 | e.printStackTrace();
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215 | }
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216 | alertDialog(msg);
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217 |
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218 | } catch(ThreadDeath death) {
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219 | if(controller != null)
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220 | controller.killAll();
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221 | controller = null;
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222 | throw death;
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223 | }
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224 |
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225 | propsHandler.passivateProperties();
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226 | if(usedOTP) {
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227 | propsHandler.clearPasswords();
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228 | }
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229 | }
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230 | }
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231 |
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232 | public void updateButtons() {
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233 | boolean isConn = isConnected();
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234 | connBut.setEnabled(!isConn);
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235 | discBut.setEnabled(isConn);
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236 | if(listMode) {
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237 | choiceHosts.setEnabled(!isConn);
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238 | } else {
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239 | if(!haveServer)
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240 | textSrv.setEnabled(!isConn);
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241 | textUser.setEnabled(!isConn);
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242 | textPasswd.setEnabled(!isConn);
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243 | }
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244 |
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245 | if(tunnelBut != null)
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246 | tunnelBut.setEnabled(isConn);
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247 | if(scpBut != null)
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248 | scpBut.setEnabled(isConn);
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249 | if(proxyBut != null)
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250 | proxyBut.setEnabled(!isConn);
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251 | }
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252 |
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253 | //
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254 | // SSHInteractor interface
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255 | //
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256 | public void propsStateChanged(SSHPropertyHandler props) {
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257 | }
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258 |
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259 | public void startNewSession(SSHClient client) {
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260 | try {
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261 | synchronized(this) {
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262 | this.wait();
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263 | }
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264 | } catch (InterruptedException e) {
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265 | }
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266 | if(listMode) {
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267 | try {
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268 | String host = choiceHosts.getSelectedItem();
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269 | String pwd = "";
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270 | do {
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271 | try {
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272 | propsHandler.setPropertyPassword(pwd);
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273 | propsHandler.loadAliasFile(host, false);
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274 | break;
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275 | } catch(SSHClient.AuthFailException ee) {
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276 | }
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277 | } while((pwd = passwordDialog("Please give file password for " +
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278 | host, "MindTunnel - File Password")) != null);
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279 | } catch (Throwable t) {
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280 | alertDialog("Error loading settings: " + t.getMessage());
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281 | }
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282 | } else {
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283 | if(!haveServer)
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284 | propsHandler.setProperty("server", textSrv.getText());
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285 | propsHandler.setProperty("usrname", textUser.getText());
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286 | String password = textPasswd.getText();
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287 | propsHandler.setProperty("password", password);
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288 | propsHandler.setProperty("rsapassword", password);
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289 | propsHandler.setProperty("tispassword", password);
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290 | propsHandler.setPropertyPassword(password);
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291 | textPasswd.setText("");
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292 | }
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293 |
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294 | propsHandler.setProperty("forcpty", "false");
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295 | }
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296 |
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297 | public void sessionStarted(SSHClient client) {
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298 | }
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299 |
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300 | public boolean quietPrompts() {
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301 | return true;
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302 | }
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303 |
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304 | public String promptLine(String prompt, String defaultVal) throws IOException {
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305 | return null;
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306 | }
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307 |
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308 | public String promptPassword(String prompt) throws IOException {
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309 | String pwd = passwordDialog(prompt, "MindTunnel - Password");
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310 | if(pwd == null) {
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311 | throw new IOException("Login canceled by user");
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312 | }
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313 | return pwd;
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314 | }
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315 |
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316 | public boolean isVerbose() {
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317 | return verbose;
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318 | }
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319 |
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320 | public boolean askConfirmation(String message, boolean defAnswer) {
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321 | return confirmDialog(message, defAnswer);
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322 | }
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323 |
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324 | public void connected(SSHClient client) {
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325 | }
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326 |
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327 | public void open(SSHClient client) {
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328 | updateButtons();
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329 | }
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330 |
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331 | public void disconnected(SSHClient client, boolean graceful) {
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332 | updateButtons();
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333 | }
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334 |
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335 | public void report(String msg) {
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336 | if(verbose) {
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337 | System.out.println(msg);
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338 | System.out.println("");
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339 | }
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340 | }
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341 |
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342 | public void alert(String msg) {
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343 | alertDialog(msg);
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344 | }
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345 |
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346 | public void windowClosing(WindowEvent e) {
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347 | if(!isConnected()) {
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348 | parent.dispose();
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349 | clientThread.stop();
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350 | } else {
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351 | alertDialog("Please disconnect before exiting!");
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352 | }
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353 | }
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354 |
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355 | Choice choiceHosts;
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356 | TextField textSrv, textUser, textPasswd;
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357 | Button connBut, discBut, tunnelBut, scpBut, proxyBut;
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358 | public final void showMainWindow() {
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359 | parent = new Frame();
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360 | parent.addWindowListener(new WindowAdapter() {
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361 | public void windowClosing(WindowEvent e) { SSHTunnelingClient.this.windowClosing(e); }
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362 | });
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363 |
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364 | if(listMode && propsHandler.availableAliases() == null) {
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365 | listMode = false;
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366 | alertDialog("Must have home directory with aliases to use list mode");
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367 | }
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368 |
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369 | GridBagLayout grid = new GridBagLayout();
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370 | GridBagConstraints gridc = new GridBagConstraints();
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371 |
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372 | ActionListener al;
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373 | Label lbl;
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374 | Panel p = new Panel();
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375 |
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376 | p.setLayout(grid);
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377 |
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378 | gridc.insets = new Insets(4, 4, 4, 4);
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379 | gridc.fill = GridBagConstraints.HORIZONTAL;
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380 | gridc.weightx = 1.0;
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381 | gridc.gridy = 0;
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382 | gridc.gridwidth = 1;
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383 | gridc.anchor = GridBagConstraints.WEST;
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384 |
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385 | String[] l = propsHandler.availableAliases();
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386 | if(listMode && l != null) {
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387 | lbl = new Label("SSH Server:");
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388 | grid.setConstraints(lbl, gridc);
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389 | p.add(lbl);
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390 |
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391 | choiceHosts = new Choice();
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392 | for(int i = 0; i < l.length; i++) {
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393 | choiceHosts.add(l[i]);
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394 | }
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395 | choiceHosts.select(0);
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396 | grid.setConstraints(choiceHosts, gridc);
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397 | p.add(choiceHosts);
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398 | gridc.gridy += 1;
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399 | } else {
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400 |
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401 | if(!haveServer) {
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402 | gridc.weightx = 0;
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403 | lbl = new Label("Server:");
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404 | grid.setConstraints(lbl, gridc);
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405 | p.add(lbl);
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406 | gridc.gridwidth = GridBagConstraints.REMAINDER;
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407 | gridc.weightx = 1.0;
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408 | textSrv = new TextField("", 16);
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409 | grid.setConstraints(textSrv, gridc);
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410 | p.add(textSrv);
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411 | }
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412 |
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413 | gridc.gridy += 1;
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414 | gridc.gridwidth = 1;
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415 | gridc.weightx = 0;
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416 | lbl = new Label("Username:");
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417 | grid.setConstraints(lbl, gridc);
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418 | p.add(lbl);
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419 | gridc.gridwidth = GridBagConstraints.REMAINDER;
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420 | gridc.weightx = 1.0;
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421 | textUser = new TextField("", 16);
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422 | grid.setConstraints(textUser, gridc);
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423 | p.add(textUser);
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424 |
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425 | gridc.gridy += 1;
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426 | gridc.gridwidth = 1;
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427 | gridc.weightx = 0;
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428 | lbl = new Label("Password:");
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429 | grid.setConstraints(lbl, gridc);
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430 | p.add(lbl);
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431 | gridc.gridwidth = GridBagConstraints.REMAINDER;
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432 | gridc.weightx = 1.0;
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433 | textPasswd = new TextField("", 16);
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434 | textPasswd.setEchoChar('*');
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435 | grid.setConstraints(textPasswd, gridc);
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436 | p.add(textPasswd);
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437 |
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438 | if(!haveServer)
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439 | textSrv.setText(propsHandler.getProperty("server"));
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440 | textUser.setText(propsHandler.getProperty("usrname"));
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441 | }
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442 |
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443 | al = new ActionListener() {
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444 | public void actionPerformed(ActionEvent e) {
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445 | if(e.getActionCommand().equals("Connect")) {
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446 | if(!listMode) {
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447 | String srv = "dummy";
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448 | if(!haveServer) {
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449 | srv = textSrv.getText();
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450 | }
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451 | String usr = textUser.getText();
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452 | if(srv == null || srv.trim().length() == 0 ||
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453 | usr == null || usr.trim().length() == 0) {
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454 | return;
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455 | }
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456 | }
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457 | synchronized(SSHTunnelingClient.this) {
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458 | SSHTunnelingClient.this.notify();
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459 | }
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460 | connBut.setEnabled(false);
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461 | discBut.requestFocus();
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462 | } else if(e.getActionCommand().equals("Disconnect")) {
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463 | forcedDisconnect();
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464 | discBut.setEnabled(false);
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465 | } else if(e.getActionCommand().equals("Tunnels Setup")) {
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466 | SSHTunnelDialog.show("MindTunnel - Basic Tunnels Setup",
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467 | SSHTunnelingClient.this, propsHandler, parent);
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468 | } else if(e.getActionCommand().equals("File Transfer")) {
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469 | SSHSCPDialog.show("MindTunnel - File Transfer", parent,
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470 | propsHandler, SSHTunnelingClient.this);
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471 | } else if(e.getActionCommand().equals("Configure Proxy")) {
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472 | SSHProxyDialog.show("MindTunnel - Proxy Settings", parent,
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473 | propsHandler);
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474 | }
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475 | }
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476 | };
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477 |
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478 | Panel bp;
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479 |
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480 | if(haveTunnelDialog || haveSCPDialog || haveProxyDialog) {
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481 | bp = new Panel(new FlowLayout());
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482 | if(haveTunnelDialog) {
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483 | tunnelBut = new Button("Tunnels Setup");
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484 | tunnelBut.addActionListener(al);
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485 | bp.add(tunnelBut);
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486 | }
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487 | if(haveSCPDialog) {
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488 | scpBut = new Button("File Transfer");
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489 | scpBut.addActionListener(al);
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490 | bp.add(scpBut);
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491 | }
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492 | if(haveProxyDialog) {
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493 | proxyBut = new Button("Configure Proxy");
|
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494 | proxyBut.addActionListener(al);
|
---|
495 | bp.add(proxyBut);
|
---|
496 | }
|
---|
497 | gridc.gridy += 1;
|
---|
498 | gridc.gridwidth = GridBagConstraints.REMAINDER;
|
---|
499 | gridc.anchor = GridBagConstraints.CENTER;
|
---|
500 | grid.setConstraints(bp, gridc);
|
---|
501 | p.add(bp);
|
---|
502 | }
|
---|
503 |
|
---|
504 | bp = new Panel(new FlowLayout());
|
---|
505 | bp.add(connBut = new Button("Connect"));
|
---|
506 |
|
---|
507 | connBut.addActionListener(al);
|
---|
508 |
|
---|
509 | bp.add(discBut = new Button("Disconnect"));
|
---|
510 | discBut.addActionListener(al);
|
---|
511 |
|
---|
512 | gridc.gridy += 1;
|
---|
513 | gridc.gridwidth = GridBagConstraints.REMAINDER;
|
---|
514 | gridc.anchor = GridBagConstraints.CENTER;
|
---|
515 | grid.setConstraints(bp, gridc);
|
---|
516 | p.add(bp);
|
---|
517 |
|
---|
518 | grid = new GridBagLayout();
|
---|
519 | gridc = new GridBagConstraints();
|
---|
520 |
|
---|
521 | parent.setLayout(grid);
|
---|
522 |
|
---|
523 | gridc.insets = new Insets(4, 4, 4, 4);
|
---|
524 | gridc.gridy = 0;
|
---|
525 | gridc.gridwidth = GridBagConstraints.REMAINDER;
|
---|
526 | gridc.fill = GridBagConstraints.HORIZONTAL;
|
---|
527 | gridc.weightx = 1.0;
|
---|
528 | gridc.anchor = GridBagConstraints.CENTER;
|
---|
529 |
|
---|
530 | Image logoImg = getLogo();
|
---|
531 | if(logoImg != null) {
|
---|
532 | Logo logo = new Logo(logoImg);
|
---|
533 | switch(logoPlacement) {
|
---|
534 | case GridBagConstraints.NORTH:
|
---|
535 | gridc.fill = GridBagConstraints.NONE;
|
---|
536 | grid.setConstraints(logo, gridc);
|
---|
537 | parent.add(logo);
|
---|
538 | gridc.fill = GridBagConstraints.HORIZONTAL;
|
---|
539 | gridc.gridy = 1;
|
---|
540 | grid.setConstraints(p, gridc);
|
---|
541 | parent.add(p);
|
---|
542 | break;
|
---|
543 |
|
---|
544 | case GridBagConstraints.WEST:
|
---|
545 | gridc.fill = GridBagConstraints.NONE;
|
---|
546 | gridc.gridwidth = 1;
|
---|
547 | grid.setConstraints(logo, gridc);
|
---|
548 | parent.add(logo);
|
---|
549 | gridc.fill = GridBagConstraints.HORIZONTAL;
|
---|
550 | gridc.gridwidth = GridBagConstraints.REMAINDER;
|
---|
551 | grid.setConstraints(p, gridc);
|
---|
552 | parent.add(p);
|
---|
553 | break;
|
---|
554 |
|
---|
555 | case GridBagConstraints.EAST:
|
---|
556 | gridc.gridwidth = 1;
|
---|
557 | grid.setConstraints(p, gridc);
|
---|
558 | parent.add(p);
|
---|
559 | gridc.fill = GridBagConstraints.NONE;
|
---|
560 | gridc.gridwidth = GridBagConstraints.REMAINDER;
|
---|
561 | grid.setConstraints(logo, gridc);
|
---|
562 | parent.add(logo);
|
---|
563 | break;
|
---|
564 |
|
---|
565 | case GridBagConstraints.SOUTH:
|
---|
566 | grid.setConstraints(p, gridc);
|
---|
567 | parent.add(p);
|
---|
568 | gridc.gridy = 1;
|
---|
569 | gridc.fill = GridBagConstraints.NONE;
|
---|
570 | grid.setConstraints(logo, gridc);
|
---|
571 | parent.add(logo);
|
---|
572 | break;
|
---|
573 | }
|
---|
574 | } else {
|
---|
575 | grid.setConstraints(p, gridc);
|
---|
576 | parent.add(p);
|
---|
577 | }
|
---|
578 |
|
---|
579 | AWTConvenience.setKeyListenerOfChildren(parent,
|
---|
580 | new AWTConvenience.OKCancelAdapter(connBut, discBut),
|
---|
581 | null);
|
---|
582 |
|
---|
583 | AWTConvenience.setBackgroundOfChildren(parent);
|
---|
584 |
|
---|
585 | parent.pack();
|
---|
586 | parent.show();
|
---|
587 | }
|
---|
588 |
|
---|
589 | Image getLogo() {
|
---|
590 | InputStream is;
|
---|
591 | ByteArrayOutputStream baos;
|
---|
592 | Image logo = null;
|
---|
593 |
|
---|
594 | if((is = this.getClass().getResourceAsStream("/images/logo_top.gif")) != null) {
|
---|
595 | logoPlacement = GridBagConstraints.NORTH;
|
---|
596 | } else if((is = this.getClass().getResourceAsStream("/images/logo_left.gif")) != null) {
|
---|
597 | logoPlacement = GridBagConstraints.WEST;
|
---|
598 | } else if((is = this.getClass().getResourceAsStream("/images/logo_right.gif")) != null) {
|
---|
599 | logoPlacement = GridBagConstraints.EAST;
|
---|
600 | } else if((is = this.getClass().getResourceAsStream("/images/logo_bottom.gif")) != null) {
|
---|
601 | logoPlacement = GridBagConstraints.SOUTH;
|
---|
602 | } else {
|
---|
603 | return null;
|
---|
604 | }
|
---|
605 |
|
---|
606 | baos = new ByteArrayOutputStream();
|
---|
607 | try {
|
---|
608 | int c;
|
---|
609 | while((c = is.read()) >= 0)
|
---|
610 | baos.write(c);
|
---|
611 | logo = Toolkit.getDefaultToolkit().createImage(baos.toByteArray());
|
---|
612 | } catch(IOException e) {
|
---|
613 | // !!!
|
---|
614 | }
|
---|
615 |
|
---|
616 | return logo;
|
---|
617 | }
|
---|
618 |
|
---|
619 | public final boolean confirmDialog(String message, boolean defAnswer) {
|
---|
620 | return SSHMiscDialogs.confirm("MindTunnel - Confirmation", message, true,
|
---|
621 | parent);
|
---|
622 | }
|
---|
623 |
|
---|
624 | public final void alertDialog(String message) {
|
---|
625 | SSHMiscDialogs.alert("MindTunnel - Alert", message, parent);
|
---|
626 | }
|
---|
627 |
|
---|
628 | public final String passwordDialog(String message, String title) {
|
---|
629 | return SSHMiscDialogs.password(title, message, parent);
|
---|
630 | }
|
---|
631 |
|
---|
632 | }
|
---|