1    package net.scp; 
2     
3     
4    import com.jcraft.jsch.*; 
5    import futils.Futil; 
6    import gui.In; 
7     
8    import javax.swing.JOptionPane; 
9    import javax.swing.JPasswordField; 
10   import javax.swing.JTextField; 
11   import java.io.*; 
12    
13   public class ScpTo { 
14       public static void main(String[] arg) { 
15           scpTo(); 
16       } 
17    
18       public static void scpTo() { 
19           String user = In.getString("user id"); 
20           String host = In.getString("host"); 
21    
22           File lfile = Futil.getReadFile( 
23                   "local file"); 
24           String rfile = "/var/www/html/book/cgij/code/jnlp/"+lfile.getName(); 
25           UserInfo ui = new MyUserInfo(); 
26           scpTo(lfile.toString(), 
27                 user, 
28                 host, 
29                 rfile, 
30                 ui); 
31       } 
32    
33    
34       public static void scpTo(String lfile, 
35                                String user, 
36                                String host, 
37                                String rfile, 
38                                UserInfo ui) { 
39           try { 
40    
41               JSch jsch = new JSch(); 
42               Session session = jsch.getSession( 
43                       user, host, 22); 
44    
45               session.setUserInfo(ui); 
46               session.connect(); 
47    
48    
49               // exec 'scp -t rfile' remotely 
50               String command = "scp -t " + rfile; 
51               Channel channel = session.openChannel( 
52                       "exec"); 
53               ((ChannelExec) channel).setCommand( 
54                       command); 
55    
56               // get I/O streams for remote scp 
57               OutputStream out = channel.getOutputStream(); 
58               InputStream in = channel.getInputStream(); 
59    
60               channel.connect(); 
61    
62               if (checkAck(in) != 0) { 
63                   System.exit(0); 
64               } 
65    
66               // send "C0644 filesize filename", where filename should not include '/' 
67               int filesize = (int) (new File(lfile)).length(); 
68               command = "C0644 " + filesize + " "; 
69               if (lfile.lastIndexOf('/') > 0) { 
70                   command += 
71                   lfile.substring(lfile.lastIndexOf( 
72                           '/') + 
73                                   1); 
74               } else { 
75                   command += lfile; 
76               } 
77               command += "\n"; 
78               out.write(command.getBytes()); 
79               out.flush(); 
80    
81               if (checkAck(in) != 0) { 
82                   return; 
83               } 
84    
85               // send a content of lfile 
86               FileInputStream fis = new FileInputStream( 
87                       lfile); 
88               byte[] buf = new byte[1024]; 
89               while (true) { 
90                   int len = fis.read(buf, 
91                                      0, 
92                                      buf.length); 
93                   if (len <= 0) break; 
94                   out.write(buf, 0, len); 
95                   out.flush(); 
96               } 
97    
98               // send '\0' 
99               buf[0] = 0; 
100              out.write(buf, 0, 1); 
101              out.flush(); 
102   
103              if (checkAck(in) != 0) { 
104                  System.exit(0); 
105              } 
106   
107              return; 
108          } catch (Exception e) { 
109              System.out.println(e); 
110          } 
111      } 
112   
113      static int checkAck(InputStream in) 
114              throws IOException { 
115          int b = in.read(); 
116          // b may be 0 for success, 
117          //          1 for error, 
118          //          2 for fatal error, 
119          //          -1 
120          if (b == 0) return b; 
121          if (b == -1) return b; 
122   
123          if (b == 1 || b == 2) { 
124              StringBuffer sb = new StringBuffer(); 
125              int c; 
126              do { 
127                  c = in.read(); 
128                  sb.append((char) c); 
129              } while (c != '\n'); 
130              if (b == 1) { // error 
131                  System.out.print(sb.toString()); 
132              } 
133              if (b == 2) { // fatal error 
134                  System.out.print(sb.toString()); 
135              } 
136          } 
137          return b; 
138      } 
139   
140      public static class MyUserInfo 
141              implements UserInfo { 
142   
143   
144          public String getPassword() { 
145              return passwd; 
146          } 
147   
148          public boolean promptYesNo(String str) { 
149              return true; 
150          } 
151   
152          String passwd; 
153          JTextField passwordField = (JTextField) new JPasswordField( 
154                  20); 
155   
156          public String getPassphrase() { 
157              return null; 
158          } 
159   
160          public boolean promptPassphrase( 
161                  String message) { 
162              return true; 
163          } 
164   
165          public boolean promptPassword( 
166                  String message) { 
167              Object[] ob = {passwordField}; 
168              int result = 
169                      JOptionPane.showConfirmDialog( 
170                              null, 
171                              ob, 
172                              message, 
173                              JOptionPane.OK_CANCEL_OPTION); 
174              if (result == JOptionPane.OK_OPTION) { 
175                  passwd = passwordField.getText(); 
176                  return true; 
177              } else { 
178                  return false; 
179              } 
180          } 
181   
182          public void showMessage(String message) { 
183              JOptionPane.showMessageDialog(null, 
184                                            message); 
185          } 
186      } 
187   
188  } 
189