Skip to main content
summaryrefslogtreecommitdiffstats
blob: 5af5ccb3d9b6b07d36719bca9f49cc61c6c384ab (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
/* -*-mode:java; c-basic-offset:2; -*- */
/**********************************************************************
Copyright (c) 2003, Atsuhiko Yamanaka, JCraft,Inc. and others.
All rights reserved.   This program and the accompanying materials
are made available under the terms of the Common Public License v1.0
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/cpl-v10.html

Contributors:
    Atsuhiko Yamanaka, JCraft,Inc. - initial API and implementation.
**********************************************************************/
package org.eclipse.team.cvs.ssh2;

import java.util.Enumeration;
import java.io.File;

import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.MessageBox;

import com.jcraft.jsch.*;

class JSchSession{
  private static final int SSH_DEFAULT_PORT=22;
  private static JSch jsch;
  private static java.util.Hashtable pool=new java.util.Hashtable();

  static String default_ssh_home=null;
  static {
    default_ssh_home=System.getProperty("user.home");
    if(default_ssh_home!=null){
      default_ssh_home=default_ssh_home+java.io.File.separator+".ssh";
    }
  }

  private static String current_ssh_home=null;

  static Session getSession(String username, String password, 
			    String hostname, int port) throws JSchException{
    if(port==0) port=SSH_DEFAULT_PORT;
    if(jsch==null){
      jsch=new JSch();
    }

    IPreferenceStore store=CVSSSH2Plugin.getDefault().getPreferenceStore();
    String ssh_home=store.getString(CVSSSH2PreferencePage.KEY_SSH2HOME);

    if(current_ssh_home==null ||
       !current_ssh_home.equals(ssh_home)){
      current_ssh_home=ssh_home;
      if(ssh_home.length()==0)
	ssh_home=default_ssh_home;

      try{
	java.io.File file;
	file=new java.io.File(ssh_home, "id_dsa");
	if(file.exists()) jsch.addIdentity(file.getPath());
	file=new java.io.File(ssh_home, "id_rsa");
	if(file.exists()) jsch.addIdentity(file.getPath());
	file=new java.io.File(ssh_home, "known_hosts");
	jsch.setKnownHosts(file.getPath());
      }
      catch(Exception e){
      }
    }

    String key=username+"@"+hostname+":"+port;

    try{
      Session session=(Session)pool.get(key);
      if(session!=null && !session.isConnected()){
	pool.remove(key);
	session=null;
      }

      if(session==null){
	session=jsch.getSession(username, hostname, port);

	boolean useProxy=store.getString(CVSSSH2PreferencePage.KEY_PROXY).equals("true");
	if(useProxy){
	  String _type=store.getString(CVSSSH2PreferencePage.KEY_PROXY_TYPE);
	  String _host=store.getString(CVSSSH2PreferencePage.KEY_PROXY_HOST);
	  String _port=store.getString(CVSSSH2PreferencePage.KEY_PROXY_PORT);

	  boolean useAuth=store.getString(CVSSSH2PreferencePage.KEY_PROXY_AUTH).equals("true");
	  String _user=store.getString(CVSSSH2PreferencePage.KEY_PROXY_USER);
	  String _pass=store.getString(CVSSSH2PreferencePage.KEY_PROXY_PASS);

	  Proxy proxy=null;
          String proxyhost=_host+":"+_port;
          if(_type.equals(CVSSSH2PreferencePage.HTTP)){
	    proxy=new ProxyHTTP(proxyhost);
	    if(useAuth){
	      ((ProxyHTTP)proxy).setUserPasswd(_user, _pass);
	    }
	  }
	  else if(_type.equals(CVSSSH2PreferencePage.SOCKS5)){
	    proxy=new ProxySOCKS5(proxyhost);
	    if(useAuth){
	      ((ProxySOCKS5)proxy).setUserPasswd(_user, _pass);
	    }
	  }
	  else{
	    proxy=null;
	  }
	  if(proxy!=null){
	    session.setProxy(proxy);
	  }
	}

	session.setPassword(password);

	UserInfo ui=new MyUserInfo(username);
	session.setUserInfo(ui);
	session.connect();
	pool.put(key, session);
      }
      return session;
    }
    catch(JSchException e){
      //e.printStackTrace();
      pool.remove(key);
      throw e;
    }
  }

  private static class MyUserInfo implements UserInfo, UIKeyboardInteractive{
    private String username;
    private String password;
    private String passphrase;
    MyUserInfo(String username){
      this.username=username;
    }
    public String getPassword(){ return password; }
    public String getPassphrase(){ return passphrase; }
    public boolean promptYesNo(String str){
      YesNoPrompt prompt=new YesNoPrompt(str);
      Display.getDefault().syncExec(prompt);
      return prompt.getResult()==SWT.YES;
    }
    public boolean promptPassphrase(String message){
      PassphrasePrompt prompt=new PassphrasePrompt(message);
      Display.getDefault().syncExec(prompt);
      String _passphrase=prompt.getPassphrase();
      if(_passphrase!=null)passphrase=_passphrase;
      return _passphrase!=null;
    }
    public boolean promptPassword(String message){
      PasswordPrompt prompt=new PasswordPrompt(message);
      Display.getDefault().syncExec(prompt);
      String _password=prompt.getPassword();
      if(_password!=null)password=_password;
      return _password!=null;
    }
    public void showMessage(final String foo){
      final Display display=Display.getCurrent();
      display.syncExec(new Runnable(){
	  public void run(){
	    Shell shell=new Shell(display);
	    MessageBox box=new MessageBox(shell,SWT.OK);
	    box.setMessage(foo);
	    box.open();
	    shell.dispose();
	  }
	});
    }
    public String[] promptKeyboardInteractive(String destination,
					      String name,
					      String instruction,
					      String lang,
					      String[] prompt,
					      boolean[] echo){
      KeyboardInteractivePrompt _prompt=new KeyboardInteractivePrompt(destination,
								      name,
								      instruction,
								      lang,
								      prompt,
								      echo);
      Display.getDefault().syncExec(_prompt);
      String[] result=_prompt.getResult();
      return result;
    }

    private class YesNoPrompt implements Runnable{
      private String prompt;
      private int result;
      YesNoPrompt(String prompt){
	this.prompt=prompt;
      }
      public void run(){
	Display display=Display.getCurrent();
	Shell shell=new Shell(display);
	MessageBox box=new MessageBox(shell,SWT.YES|SWT.NO);
	box.setMessage(prompt);
	result=box.open();
	shell.dispose();
      }
      public int getResult(){ return result; }
    }
    private class PasswordPrompt implements Runnable{
      private String message;
      private String password;
      PasswordPrompt(String message){
	this.message=message;
      }
      public void run(){
	Display display=Display.getCurrent();
	Shell shell=new Shell(display);
	PasswordDialog dialog=new PasswordDialog(shell, message);
	dialog.open();
	shell.dispose();
	password=dialog.getPassword();
      }
      public String getPassword(){
	return password;
      }
    }
    private class PassphrasePrompt implements Runnable{
      private String message;
      private String passphrase;
      PassphrasePrompt(String message){
	this.message=message;
      }
      public void run(){
	Display display=Display.getCurrent();
	Shell shell=new Shell(display);
	PassphraseDialog dialog=new PassphraseDialog(shell, message);
	dialog.open();
	shell.dispose();
	passphrase=dialog.getPassphrase();
      }
      public String getPassphrase(){
	return passphrase;
      }
    }
    private class KeyboardInteractivePrompt implements Runnable{
      private String destination;
      private String name;
      private String instruction;
      private String lang;
      private String[] prompt;
      private boolean[] echo;
      private String[] result;
      KeyboardInteractivePrompt(String destination,
				String name,
				String instruction,
				String lang,
				String[] prompt,
				boolean[] echo){
	this.destination=destination;
	this.name=name;
	this.instruction=instruction;
	this.lang=lang;
	this.prompt=prompt;
	this.echo=echo;
      }
      public void run(){
	Display display=Display.getCurrent();
	Shell shell=new Shell(display);
	KeyboardInteractiveDialog dialog=new KeyboardInteractiveDialog(shell,
								       destination,
								       name,
								       instruction,
								       lang,
								       prompt,
								       echo);
	dialog.open();
	shell.dispose();
	result=dialog.getResult();
      }
      public String[] getResult(){
	return result;
      }
    }
  }

  static void shutdown(){
    if(jsch!=null && pool.size()>0){
      for(Enumeration e=pool.elements(); e.hasMoreElements();){
        Session session=(Session)(e.nextElement());
	try{ session.disconnect(); }
	catch(Exception ee){}
      }
      pool.clear();
    }
  }
}

Back to the top