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1
2 import com.jcraft.jsch.*;
3 import java.io.*;
4 import java.awt.*;
5 import javax.swing.*;
6
7 public class Daemon{
8 public static void main(String  [] arg){
9
10 int rport;
11
12 try{
13 JSch jsch=new JSch();
14
15 String host=JOptionPane.showInputDialog("Enter username@hostname",
16 System.getProperty("user.name")+
17 "@localhost");
18 String user=host.substring(0, host.indexOf('@'));
19 host=host.substring(host.indexOf('@')+1);
20
21 Session session=jsch.getSession(user, host, 22);
22
23 String foo=JOptionPane.showInputDialog("Enter remote port number",
24 "8888");
25 rport=Integer.parseInt(foo);
26
27 UserInfo ui=new MyUserInfo();
29 session.setUserInfo(ui);
30
31 session.connect();
32
33 session.setPortForwardingR(rport, "Daemon$Parrot");
35 System.out.println(host+":"+rport+" <--> "+"Parrot");
36 }
37 catch(Exception e){
38 System.out.println(e);
39 }
40 }
41
42 public static class Parrot implements ForwardedTCPIPDaemon{
43 ChannelForwardedTCPIP channel;
44 Object [] arg;
45 public void setChannel(ChannelForwardedTCPIP c){this.channel=c;}
46 public void setArg(Object [] arg){this.arg=arg;}
47 public void run(){
48 System.out.println("remote port: "+channel.getRemotePort());
49 System.out.println("remote host: "+channel.getSession().getHost());
50 try{
51 InputStream in=channel.getInputStream();
52 OutputStream out=channel.getOutputStream();
53 byte[] buf=new byte[1024];
54 while(true){
55 int i=in.read(buf, 0, buf.length);
56 if(i<=0)break;
57 out.write(buf, 0, i);
58 if(buf[0]=='.')break;
59 }
60 }
61 catch(IOException e){
62 }
63 }
64 }
65
66 public static class MyUserInfo implements UserInfo, UIKeyboardInteractive{
67 public String getPassword(){ return passwd; }
68 public boolean promptYesNo(String str){
69 Object [] options={ "yes", "no" };
70 int foo=JOptionPane.showOptionDialog(null,
71 str,
72 "Warning",
73 JOptionPane.DEFAULT_OPTION,
74 JOptionPane.WARNING_MESSAGE,
75 null, options, options[0]);
76 return foo==0;
77 }
78
79 String passwd;
80 JTextField passwordField=(JTextField)new JPasswordField(20);
81
82 public String getPassphrase(){ return null; }
83 public boolean promptPassphrase(String message){ return true; }
84 public boolean promptPassword(String message){
85 Object [] ob={passwordField};
86 int result=JOptionPane.showConfirmDialog(null, ob, message,
87 JOptionPane.OK_CANCEL_OPTION);
88 if(result==JOptionPane.OK_OPTION){
89 passwd=passwordField.getText();
90 return true;
91 }
92 else{ return false; }
93 }
94 public void showMessage(String message){
95 JOptionPane.showMessageDialog(null, message);
96 }
97 final GridBagConstraints gbc =
98 new GridBagConstraints(0,0,1,1,1,1,
99 GridBagConstraints.NORTHWEST,
100 GridBagConstraints.NONE,
101 new Insets(0,0,0,0),0,0);
102 private Container panel;
103 public String [] promptKeyboardInteractive(String destination,
104 String name,
105 String instruction,
106 String [] prompt,
107 boolean[] echo){
108 panel = new JPanel();
109 panel.setLayout(new GridBagLayout());
110
111 gbc.weightx = 1.0;
112 gbc.gridwidth = GridBagConstraints.REMAINDER;
113 gbc.gridx = 0;
114 panel.add(new JLabel(instruction), gbc);
115 gbc.gridy++;
116
117 gbc.gridwidth = GridBagConstraints.RELATIVE;
118
119 JTextField[] texts=new JTextField[prompt.length];
120 for(int i=0; i<prompt.length; i++){
121 gbc.fill = GridBagConstraints.NONE;
122 gbc.gridx = 0;
123 gbc.weightx = 1;
124 panel.add(new JLabel(prompt[i]),gbc);
125
126 gbc.gridx = 1;
127 gbc.fill = GridBagConstraints.HORIZONTAL;
128 gbc.weighty = 1;
129 if(echo[i]){
130 texts[i]=new JTextField(20);
131 }
132 else{
133 texts[i]=new JPasswordField(20);
134 }
135 panel.add(texts[i], gbc);
136 gbc.gridy++;
137 }
138
139 if(JOptionPane.showConfirmDialog(null, panel,
140 destination+": "+name,
141 JOptionPane.OK_CANCEL_OPTION,
142 JOptionPane.QUESTION_MESSAGE)
143 ==JOptionPane.OK_OPTION){
144 String [] response=new String [prompt.length];
145 for(int i=0; i<prompt.length; i++){
146 response[i]=texts[i].getText();
147 }
148 return response;
149 }
150 else{
151 return null; }
153 }
154 }
155 }
156 |
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