createadminaccountpanel.java

这是一个用java和xml编写的流媒体服务器管理软件

/*
 * ====================================================================
 * The Vovida Software License, Version 1.0
 *
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in
 * the documentation and/or other materials provided with the
 * distribution.
 *
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 * and "Vovida Open Communication Application Library (VOCAL)" must
 * not be used to endorse or promote products derived from this
 * software without prior written permission. For written
 * permission, please contact [e-mail].
 *
 * 4. Products derived from this software may not be called "VOCAL", nor
 * may "VOCAL" appear in their name, without prior written
 * permission of Vovida Networks, Inc.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL VOVIDA
 * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
 * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 *
 * ====================================================================
 *
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
 * <http://www.vovida.org/>.
 *
 */

package vocal.pw;

import vocal.comm.VPPTransactionWrapper;
import vocal.comm.VPPException;
import vocal.comm.VPPNoSuchFileException;
import vocal.pw.PasswordManager;
import vocal.pw.AdminTableModel;

import vocal.userEditor.Buttons;
import vocal.userEditor.EditorModes;

import javax.swing.*;

import javax.swing.border.EmptyBorder;

import java.io.FileNotFoundException;

import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import java.security.NoSuchAlgorithmException;


/**
 * Used to both create and edit administrative accounts.<p>
 * Allows the user to provide a user id, password, confirmed password and select
 * whether either (or both) administrator or technician access is enabled for
 * the account. Then goes to check whether an administrative account with that
 * name already exists and writes it to the provisioning server if it does not.
 */
public class CreateAdminAccountPanel extends JPanel
{
  /**
   * A "template" for the contents of the administrative account file.
   */
  private static final String xml = "<admin> " + "<name>vovida</name>"
          + "<password>6f7d5634f65192a3b9c8479cee3b655</password>"
          +     // it's "vovida"
  "<accessLevel type=\"administrator\" enabled=\"true\"></accessLevel>\n"
  + "<accessLevel type=\"technician\" enabled=\"true\"></accessLevel>"
          + "</admin>";

  private JTextField loginId;
  private JPasswordField password;
  private JPasswordField reEnterPassword;

  private JCheckBox adminAccess;
  private JCheckBox techAccess;

  private JButton ok;
  private JButton cancel;

  private VPPTransactionWrapper connection;

  private String adminXml;

  private int lastButtonClicked = Buttons.BUTTON_NONE;

  private int mode = EditorModes.ADD_NEW_MODE;


  public CreateAdminAccountPanel(VPPTransactionWrapper con)
  {
    connection = con;

    loginId = new JTextField("");
    password = new JPasswordField();
    reEnterPassword = new JPasswordField();

    ok = new JButton("OK");

    ok.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {

        // make sure they entered a login name
        if ((loginId.getText() == null) || (loginId.getText().equals("")))
        {
          JOptionPane.showMessageDialog(CreateAdminAccountPanel.this.getTopLevelAncestor(),
                  "Please enter a login id.");

          return;
        }

        // make sure they entered a password
        if ((password.getPassword() == null)
            || (password.getPassword().equals("")))
        {
          JOptionPane.showMessageDialog(CreateAdminAccountPanel.this.getTopLevelAncestor(),
                  "Please enter a password.");

          return;
        }

        String pw1 = new String(password.getPassword());
        String pw2 = new String(reEnterPassword.getPassword());

        // make sure the two passwords they entered matched
        if (!pw1.equals(pw2))
        {
          JOptionPane.showMessageDialog(CreateAdminAccountPanel.this.getTopLevelAncestor(),
                  "The passwords did not match. Please try again.");
          password.setText("");
          reEnterPassword.setText("");

          return;
        }

        try
        {

          // build up the xml for the new administrator/tech
          adminXml =
            "<admin>\n  <name>" + loginId.getText() + "</name>\n"
            + "  <password>"
            + PasswordManager.computeHash(new String(password.getPassword()))
            + "</password>\n";

          if (adminAccess.isSelected())
          {
            adminXml +=
              "  <accessLevel type=\"administrator\" enabled=\"true\"></accessLevel>\n";
          }
          else
          {
            adminXml +=
              "  <accessLevel type=\"administrator\" enabled=\"false\"></accessLevel>\n";
          }

          if (techAccess.isSelected())
          {
            adminXml +=
              "  <accessLevel type=\"technician\" enabled=\"true\"></accessLevel>";
          }
          else
          {
            adminXml +=
              "  <accessLevel type=\"technician\" enabled=\"false\"></accessLevel>";
          }

          adminXml += "</admin>";
        }
        catch (NoSuchAlgorithmException exx)
        {
          exx.printStackTrace();
          JOptionPane.showMessageDialog(CreateAdminAccountPanel.this.getTopLevelAncestor(),
                  "Could not find a provider for the password hash algorithm. \n\n");

          return;
        }

        if (mode == EditorModes.ADD_NEW_MODE)
        {

          // go to the admin accounts directory and find out if an admin of this
          // name already exists.
          try
          {
            CreateAdminAccountPanel.this.connection.doGet("Admin_Accounts",
                    loginId.getText());
            JOptionPane.showMessageDialog(CreateAdminAccountPanel.this.getTopLevelAncestor(),
                    "An account with that id already exists. Please use a different id.");
            loginId.setText("");

            return;
          }
          catch (VPPNoSuchFileException ex)
          {

            // no such admin exists so it is ok to create a new one
            // ok - go ahead and save the xml file
          }
          catch (VPPException ex)
          {
            CreateAdminAccountPanel.this.connection.showVPPException(ex, "");
          }
        }

        // save the xml to the pserver
        try
        {
          connection.doPut("Admin_Accounts", loginId.getText(), adminXml);
        }
        catch (VPPException ex)
        {
          connection.showVPPException(ex, "");
        }

        lastButtonClicked = Buttons.BUTTON_OK;

        CreateAdminAccountPanel.this.getTopLevelAncestor().setVisible(false);
        clear();
      }

    });

    cancel = new JButton("Cancel");

    cancel.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        lastButtonClicked = Buttons.BUTTON_CANCEL;

        CreateAdminAccountPanel.this.getTopLevelAncestor().setVisible(false);
        clear();
      }

    });

    adminAccess = new JCheckBox("Administrator access ");

    adminAccess.setSelected(true);

    techAccess = new JCheckBox("Technician access ");

    techAccess.setSelected(true);

    setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
    setBorder(new EmptyBorder(5, 5, 5, 5));

    JPanel temp = new JPanel();

    temp.setLayout(new BoxLayout(temp, BoxLayout.X_AXIS));
    temp.add(new JLabel("Login id: "));
    temp.add(Box.createHorizontalGlue());
    add(temp);
    add(loginId);
    add(Box.createVerticalStrut(5));

    temp = new JPanel();

    temp.setLayout(new BoxLayout(temp, BoxLayout.X_AXIS));
    temp.add(new JLabel("Password: "));
    temp.add(Box.createHorizontalGlue());
    add(temp);
    add(password);
    add(Box.createVerticalStrut(5));

    temp = new JPanel();

    temp.setLayout(new BoxLayout(temp, BoxLayout.X_AXIS));
    temp.add(new JLabel("Re-enter password: "));
    temp.add(Box.createHorizontalGlue());
    add(temp);
    add(reEnterPassword);
    add(Box.createVerticalStrut(5));

    temp = new JPanel();

    temp.setLayout(new BoxLayout(temp, BoxLayout.X_AXIS));
    temp.add(new JLabel("Access level: "));
    temp.add(Box.createHorizontalGlue());
    add(temp);

    temp = new JPanel();

    temp.setLayout(new BoxLayout(temp, BoxLayout.X_AXIS));
    temp.add(Box.createHorizontalStrut(10));
    temp.add(adminAccess);
    temp.add(Box.createHorizontalGlue());
    add(temp);

    temp = new JPanel();

    temp.setLayout(new BoxLayout(temp, BoxLayout.X_AXIS));
    temp.add(Box.createHorizontalStrut(10));
    temp.add(techAccess);
    temp.add(Box.createHorizontalGlue());
    add(temp);
    add(Box.createVerticalStrut(10));

    temp = new JPanel();

    temp.setLayout(new BoxLayout(temp, BoxLayout.X_AXIS));
    temp.add(Box.createHorizontalGlue());
    temp.add(ok);
    temp.add(Box.createHorizontalStrut(5));
    temp.add(cancel);
    add(temp);

    loginId.setPreferredSize(new Dimension(360,
            (int) loginId.getPreferredSize().getHeight()));
  }

  private void clear()
  {
    loginId.setText("");
    password.setText("");
    reEnterPassword.setText("");
    adminAccess.setSelected(true);
    techAccess.setSelected(true);
  }


  public int getLastButtonClicked()
  {
    return lastButtonClicked;
  }


  public String getAdminXml()
  {
    return adminXml;
  }

  /**
   * Sets the value of a data field in the ui. <p>
   * Each piece of data (eg: password, login id, etc) is passed to this method
   * as a string along with an intiger identifying which data it is. This method
   * then finds the appropriate ui widget which corresponds to this data and
   * sets its value based on the given string.
   * @param data string representation of the data to be set
   * @param id the identifier of the data to be set. Each piece of data is
   * assigned a unique integer identifier in <code>AdminTableModel</code>
   */
  public void setData(String data, int id)
  {
    switch (id)
    {

      case AdminTableModel.LOGIN_ID:
      {
        loginId.setText(data);
      }

        break;

      case AdminTableModel.ADMIN_ACCESS:
      {
        if (data.equals("true"))
        {
          adminAccess.setSelected(true);
        }
        else
        {
          adminAccess.setSelected(false);
        }
      }

        break;

      case AdminTableModel.TECH_ACCESS:
      {
        if (data.equals("true"))
        {
          techAccess.setSelected(true);
        }
        else
        {
          techAccess.setSelected(false);
        }
      }

        break;

      case AdminTableModel.PASSWORD:
      {

        // should this be set?
      }
    }
  }

  /**
   * Sets a flag indicating whether this class is being used to add a new
   * account or edit an existing account. <p>
   * The distinction exists because it should not be possible to edit the
   * account name after it has been created so this is used to disable editing
   * on the account id ui widget. <p>
   * @param newMode the identifier of the new mode as defined in <code>
   * EditorModes</code>.
   */
  public void setMode(int newMode)
  {
    if (mode != newMode)
    {
      if (newMode == EditorModes.ADD_NEW_MODE)
      {
        loginId.setEnabled(true);
      }
      else if (newMode == EditorModes.EDIT_EXISTING_MODE)
      {
        loginId.setEnabled(false);
      }
    }

    mode = newMode;
  }

}