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Java > Open Source Codes > Shell


1 /* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
2 import com.jcraft.jsch.*;
3 import java.awt.*;
4 import javax.swing.*;
5
6 public class Shell{
7   public static void main(String JavaDoc[] arg){
8     
9     try{
10       JSch jsch=new JSch();
11
12       //jsch.setKnownHosts("/home/foo/.ssh/known_hosts");
13
14       String JavaDoc host=JOptionPane.showInputDialog("Enter username@hostname",
15                                               System.getProperty("user.name")+
16                                               "@localhost");
17       String JavaDoc user=host.substring(0, host.indexOf('@'));
18       host=host.substring(host.indexOf('@')+1);
19
20       Session session=jsch.getSession(user, host, 22);
21       //session.setPassword("your password");
22
23       // username and password will be given via UserInfo interface.
24 UserInfo ui=new MyUserInfo();
25       session.setUserInfo(ui);
26
27       //java.util.Hashtable config=new java.util.Hashtable();
28 //config.put("StrictHostKeyChecking", "no");
29 //session.setConfig(config);
30
31       //session.connect();
32 session.connect(30000); // making a connection with timeout.
33
34       Channel channel=session.openChannel("shell");
35
36       // Enable agent-forwarding.
37 //((ChannelShell)channel).setAgentForwarding(true);
38
39       channel.setInputStream(System.in);
40       channel.setOutputStream(System.out);
41
42       /*
43       ((ChannelShell)channel).setPtyType("vt102");
44       java.util.Hashtable env=new java.util.Hashtable();
45       env.put("LANG", "ja_JP.eucJP");
46       ((ChannelShell)channel).setEnv(env);
47       */
48
49       //channel.connect();
50 channel.connect(3*1000);
51     }
52     catch(Exception JavaDoc e){
53       System.out.println(e);
54     }
55   }
56
57   public static class MyUserInfo implements UserInfo, UIKeyboardInteractive{
58     public String JavaDoc getPassword(){ return passwd; }
59     public boolean promptYesNo(String JavaDoc str){
60       Object JavaDoc[] options={ "yes", "no" };
61       int foo=JOptionPane.showOptionDialog(null,
62              str,
63              "Warning",
64              JOptionPane.DEFAULT_OPTION,
65              JOptionPane.WARNING_MESSAGE,
66              null, options, options[0]);
67        return foo==0;
68     }
69
70     String JavaDoc passwd;
71     JTextField passwordField=(JTextField)new JPasswordField(20);
72
73     public String JavaDoc getPassphrase(){ return null; }
74     public boolean promptPassphrase(String JavaDoc message){ return true; }
75     public boolean promptPassword(String JavaDoc message){
76       Object JavaDoc[] ob={passwordField};
77       int result=JOptionPane.showConfirmDialog(null, ob, message,
78                                                JOptionPane.OK_CANCEL_OPTION);
79       if(result==JOptionPane.OK_OPTION){
80         passwd=passwordField.getText();
81         return true;
82       }
83       else{
84         return false;
85       }
86     }
87     public void showMessage(String JavaDoc message){
88       JOptionPane.showMessageDialog(null, message);
89     }
90     final GridBagConstraints gbc =
91       new GridBagConstraints(0,0,1,1,1,1,
92                              GridBagConstraints.NORTHWEST,
93                              GridBagConstraints.NONE,
94                              new Insets(0,0,0,0),0,0);
95     private Container panel;
96     public String JavaDoc[] promptKeyboardInteractive(String JavaDoc destination,
97                                               String JavaDoc name,
98                                               String JavaDoc instruction,
99                                               String JavaDoc[] prompt,
100                                               boolean[] echo){
101       panel = new JPanel();
102       panel.setLayout(new GridBagLayout());
103
104       gbc.weightx = 1.0;
105       gbc.gridwidth = GridBagConstraints.REMAINDER;
106       gbc.gridx = 0;
107       panel.add(new JLabel(instruction), gbc);
108       gbc.gridy++;
109
110       gbc.gridwidth = GridBagConstraints.RELATIVE;
111
112       JTextField[] texts=new JTextField[prompt.length];
113       for(int i=0; i<prompt.length; i++){
114         gbc.fill = GridBagConstraints.NONE;
115         gbc.gridx = 0;
116         gbc.weightx = 1;
117         panel.add(new JLabel(prompt[i]),gbc);
118
119         gbc.gridx = 1;
120         gbc.fill = GridBagConstraints.HORIZONTAL;
121         gbc.weighty = 1;
122         if(echo[i]){
123           texts[i]=new JTextField(20);
124         }
125         else{
126           texts[i]=new JPasswordField(20);
127         }
128         panel.add(texts[i], gbc);
129         gbc.gridy++;
130       }
131
132       if(JOptionPane.showConfirmDialog(null, panel,
133                                        destination+": "+name,
134                                        JOptionPane.OK_CANCEL_OPTION,
135                                        JOptionPane.QUESTION_MESSAGE)
136          ==JOptionPane.OK_OPTION){
137         String JavaDoc[] response=new String JavaDoc[prompt.length];
138         for(int i=0; i<prompt.length; i++){
139           response[i]=texts[i].getText();
140         }
141     return response;
142       }
143       else{
144         return null; // cancel
145 }
146     }
147   }
148 }
149
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