Authenticator


1   /*
2    * This file is part of the QuickServer library 
3    * Copyright (C) 2003-2005 QuickServer.org
4    *
5    * Use, modification, copying and distribution of this software is subject to
6    * the terms and conditions of the GNU Lesser General Public License. 
7    * You should have received a copy of the GNU LGP License along with this 
8    * library; if not, you can download a copy from <http://www.quickserver.org/>.
9    *
10   * For questions, suggestions, bug-reports, enhancement-requests etc.
11   * visit http://www.quickserver.org
12   *
13   */
14  
15  package ftpserver;
16  
17  import org.quickserver.net.server.*;
18  import org.quickserver.net.AppException;
19  import java.io.*;
20  import java.util.*;
21  
22  public class Authenticator extends QuickAuthenticator {
23  
24      public boolean askAuthorisation(ClientHandler clientHandler)
25              throws IOException, AppException {
26          
27          String   username = askStringInput(clientHandler, null); //USER <USERNAME>
28          //no need to check for null : done by QuickAuthenticator
29  
30          if(username.equalsIgnoreCase("QUIT")) {
31              sendString(clientHandler, "221 Logged out.");
32              throw new AppException("Quit");
33          }
34          if( username.toUpperCase().startsWith("USER ") == false){
35              sendString(clientHandler, "503 Bad sequence of command, USER required.");
36              return false;
37          } else {
38              sendString(clientHandler, "331 User name okay, need password.");
39          }
40  
41          String   password = askStringInput(clientHandler, null);//PASS <PASSWORD>
42          //no need to check for null : done by QuickAuthenticator
43  
44          if(password.equalsIgnoreCase("QUIT")) {
45              sendString(clientHandler, "221 Logged out.");
46              throw new AppException("Quit");
47          }
48          if( password.toUpperCase().startsWith("PASS ") == false ){
49              sendString(clientHandler, "503 Bad sequence of command, PASS required.");
50              return false;
51          } 
52  
53          Data data = (Data)clientHandler.getClientData();
54          data.username = username;
55          /*
56          sendString(clientHandler, "332 PASS password okay, need account.");
57          data.account = in.readLine();
58          if( data.account==null || 
59              !data.account.toUpperCase().startsWith("ACCT ") ){
60              sendString(clientHandler, "503 Bad sequence of command, ACCT required.");
61              return false;
62          } 
63          */
64          
65          if(username.toLowerCase().equals("user anonymous")) {   
66              //data.root = (String)clientHandler.getServer().getStoreObjects()[0];
67              HashMap appConfig = 
68                  clientHandler.getServer().getConfig().getApplicationConfiguration();
69              String   temp = null;
70              if(appConfig!=null)
71                  temp = (String  )appConfig.get("FTP_ROOT");
72              else
73                  temp = System.getProperty("user.home");
74              data.root = temp;
75              sendString(clientHandler, "230 User logged in, proceed.");
76              return true;
77          } else {
78              sendString(clientHandler, "530 Not logged in.");
79              return false;
80          }
81      }
82  }
83
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