Examples of gnu.javax.security.auth.callback.DefaultCallbackHandler

Package gnu.javax.security.auth.callback

Examples of gnu.javax.security.auth.callback.DefaultCallbackHandler

gnu.javax.security.auth.callback.DefaultCallbackHandler

   * @param remoteHost The remote host being connected to.
   * @return The user name.
   */
  private String askUserName(String remoteHost)
  {
    CallbackHandler handler = new DefaultCallbackHandler();
    try
      {
        Class c = Class.forName(Util.getSecurityProperty("jessie.srp.user.handler"));
        handler = (CallbackHandler) c.newInstance();
      }
    catch (Exception x) { }
    TextInputCallback user =
      new TextInputCallback("User name for " + remoteHost + ": ",
                            Util.getProperty("user.name"));
    try
      {
        handler.handle(new Callback[] { user });
      }
    catch (Exception x) { }
    return user.getText();
  }

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   * @param user The user name.
   * @return The password.
   */
  private String askPassword(String user)
  {
    CallbackHandler handler = new DefaultCallbackHandler();
    try
      {
        Class c = Class.forName(Util.getSecurityProperty("jessie.srp.password.handler"));
        handler = (CallbackHandler) c.newInstance();
      }
    catch (Exception x) { }
    PasswordCallback passwd = new PasswordCallback(user + "'s password: ", false);
    try
      {
        handler.handle(new Callback[] { passwd });
      }
    catch (Exception x) { }
    return new String(passwd.getPassword());
  }

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   * @param chain The certificate chain in question.
   * @return true if the user accepts the certificate chain.
   */
  private boolean checkCertificates(X509Certificate[] chain)
  {
    CallbackHandler handler = new DefaultCallbackHandler();
    try
      {
        Class c = Class.forName(Util.getSecurityProperty("jessie.certificate.handler"));
        handler = (CallbackHandler) c.newInstance();
      }
    catch (Exception x)
      {
      }
    String nl = Util.getProperty("line.separator");
    ConfirmationCallback confirm = new ConfirmationCallback(
      "The server's certificate could not be verified. There is no proof" + nl +
      "that this server is who it claims to be, or that their certificate" + nl +
      "is valid. Do you wish to continue connecting?",
      ConfirmationCallback.ERROR, ConfirmationCallback.YES_NO_OPTION,
      ConfirmationCallback.NO);
    try
      {
        handler.handle(new Callback[] { confirm });
      }
    catch (Exception x)
      {
        return false;
      }

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