java/Test/ServerHandler.java

   1
   2 import java.io.*;
   3 import javax.security.auth.callback.*;
   4
   5 class ServerHandler implements javax.security.auth.callback.CallbackHandler{
   6
   7     String authid;
   8     String userid;
   9     String password;
  10     String realm;
  11
  12     public ServerHandler()
  13     {
  14
  15     }
  16
  17     public ServerHandler(String authid, String userid, String password, String realm)
  18     {
  19         this.authid = authid;
  20         this.userid = userid;
  21         this.password = password;
  22         this.realm = realm;
  23     }
  24
  25
  26
  27     private String getinput(String prompt)
  28     {
  29         System.out.println(prompt);
  30         System.out.print(">");
  31
  32         String result="";
  33
  34         try {
  35             int c;
  36             do {
  37                 c = System.in.read();
  38                 if (c!='\n')
  39                     result+=(char)c;
  40             } while (c!='\n');
  41
  42             System.out.println("res = "+result);
  43         } catch (IOException e) {
  44
  45         }
  46
  47         return result;
  48     }
  49
  50     private void getauthid(NameCallback c)
  51     {
  52         if (authid!=null) {
  53             c.setName(authid);
  54             return;
  55         }
  56
  57         /*      authid = System.getProperty("user.name");
  58         if (authid!=null) {
  59             c.setName(authid);
  60             return;
  61             } */
  62
  63         c.setName( getinput(c.getPrompt()));
  64     }
  65
  66     private void getpassword(PasswordCallback c)
  67     {
  68         if (password!=null) {
  69             c.setPassword(password.toCharArray());
  70             return;
  71         }
  72
  73         c.setPassword( (getinput("Enter password")).toCharArray());
  74     }
  75
  76     private void getrealm(RealmCallback c)
  77     {
  78         if (realm!=null) {
  79             c.setRealm(realm);
  80             return;
  81         }
  82
  83         c.setRealm( getinput(c.getPrompt()) );
  84     }
  85
  86     public void invokeCallback(Callback[] callbacks)
  87         throws java.io.IOException, UnsupportedCallbackException
  88     {
  89         for (int lup=0;lup<callbacks.length;lup++)
  90         {
  91             Callback c = callbacks[lup];
  92
  93             if (c instanceof NameCallback) {
  94                 getauthid((NameCallback) c);
  95             } else if (c instanceof PasswordCallback) {
  96                 getpassword((PasswordCallback) c);
  97             } else if (c instanceof RealmCallback) {
  98                 getrealm((RealmCallback) c);
  99             } else {
 100                 System.out.println("TODO!");
 101                 System.exit(1);
 102             }
 103         }
 104     }
 105
 106     public void handle(Callback[] callbacks)
 107         throws java.io.IOException, UnsupportedCallbackException
 108     {
 109         invokeCallback(callbacks);
 110     }
 111
 112 }