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1
2 import com.jcraft.jsch.*;
3 import java.awt.*;
4 import javax.swing.*;
5
6 public class StreamForwarding{
7 public static void main(String  [] arg){
8 int port;
9
10 try{
11 JSch jsch=new JSch();
12
13 String host=JOptionPane.showInputDialog("Enter username@hostname",
14 System.getProperty("user.name")+
15 "@localhost");
16 String user=host.substring(0, host.indexOf('@'));
17 host=host.substring(host.indexOf('@')+1);
18
19 Session session=jsch.getSession(user, host, 22);
20
21 UserInfo ui=new MyUserInfo();
23 session.setUserInfo(ui);
24 session.connect();
25
26 String foo=JOptionPane.showInputDialog("Enter host and port",
27 "host:port");
28 host=foo.substring(0, foo.indexOf(':'));
29 port=Integer.parseInt(foo.substring(foo.indexOf(':')+1));
30
31 System.out.println("System.{in,out} will be forwarded to "+
32 host+":"+port+".");
33 Channel channel=session.openChannel("direct-tcpip");
34 ((ChannelDirectTCPIP)channel).setInputStream(System.in);
35 ((ChannelDirectTCPIP)channel).setOutputStream(System.out);
36 ((ChannelDirectTCPIP)channel).setHost(host);
37 ((ChannelDirectTCPIP)channel).setPort(port);
38 channel.connect();
39 }
40 catch(Exception e){
41 System.out.println(e);
42 }
43 }
44
45 public static class MyUserInfo implements UserInfo, UIKeyboardInteractive{
46 public String getPassword(){ return passwd; }
47 public boolean promptYesNo(String str){
48 Object [] options={ "yes", "no" };
49 int foo=JOptionPane.showOptionDialog(null,
50 str,
51 "Warning",
52 JOptionPane.DEFAULT_OPTION,
53 JOptionPane.WARNING_MESSAGE,
54 null, options, options[0]);
55 return foo==0;
56 }
57
58 String passwd;
59 JTextField passwordField=(JTextField)new JPasswordField(20);
60
61 public String getPassphrase(){ return null; }
62 public boolean promptPassphrase(String message){ return true; }
63 public boolean promptPassword(String message){
64 Object [] ob={passwordField};
65 int result=
66 JOptionPane.showConfirmDialog(null, ob, message,
67 JOptionPane.OK_CANCEL_OPTION);
68 if(result==JOptionPane.OK_OPTION){
69 passwd=passwordField.getText();
70 return true;
71 }
72 else{ return false; }
73 }
74 public void showMessage(String message){
75 JOptionPane.showMessageDialog(null, message);
76 }
77 final GridBagConstraints gbc =
78 new GridBagConstraints(0,0,1,1,1,1,
79 GridBagConstraints.NORTHWEST,
80 GridBagConstraints.NONE,
81 new Insets(0,0,0,0),0,0);
82 private Container panel;
83 public String [] promptKeyboardInteractive(String destination,
84 String name,
85 String instruction,
86 String [] prompt,
87 boolean[] echo){
88 panel = new JPanel();
89 panel.setLayout(new GridBagLayout());
90
91 gbc.weightx = 1.0;
92 gbc.gridwidth = GridBagConstraints.REMAINDER;
93 gbc.gridx = 0;
94 panel.add(new JLabel(instruction), gbc);
95 gbc.gridy++;
96
97 gbc.gridwidth = GridBagConstraints.RELATIVE;
98
99 JTextField[] texts=new JTextField[prompt.length];
100 for(int i=0; i<prompt.length; i++){
101 gbc.fill = GridBagConstraints.NONE;
102 gbc.gridx = 0;
103 gbc.weightx = 1;
104 panel.add(new JLabel(prompt[i]),gbc);
105
106 gbc.gridx = 1;
107 gbc.fill = GridBagConstraints.HORIZONTAL;
108 gbc.weighty = 1;
109 if(echo[i]){
110 texts[i]=new JTextField(20);
111 }
112 else{
113 texts[i]=new JPasswordField(20);
114 }
115 panel.add(texts[i], gbc);
116 gbc.gridy++;
117 }
118
119 if(JOptionPane.showConfirmDialog(null, panel,
120 destination+": "+name,
121 JOptionPane.OK_CANCEL_OPTION,
122 JOptionPane.QUESTION_MESSAGE)
123 ==JOptionPane.OK_OPTION){
124 String [] response=new String [prompt.length];
125 for(int i=0; i<prompt.length; i++){
126 response[i]=texts[i].getText();
127 }
128 return response;
129 }
130 else{
131 return null; }
133 }
134 }
135 }
136
137
138 |
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