Rafael Cavazin
2013-07-21 f66e89662c091e082bd1d2feb6ac91513ccff273
src/main/java/com/gitblit/authority/GitblitAuthority.java
New file
@@ -0,0 +1,923 @@
/*
 * Copyright 2012 gitblit.com.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.gitblit.authority;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Desktop;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.BufferedInputStream;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.FilenameFilter;
import java.io.IOException;
import java.net.URI;
import java.security.PrivateKey;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMultipart;
import javax.swing.ImageIcon;
import javax.swing.InputVerifier;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.JToolBar;
import javax.swing.RowFilter;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.table.TableRowSorter;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.storage.file.FileBasedConfig;
import org.eclipse.jgit.util.FS;
import org.slf4j.LoggerFactory;
import com.gitblit.ConfigUserService;
import com.gitblit.Constants;
import com.gitblit.FileSettings;
import com.gitblit.IStoredSettings;
import com.gitblit.IUserService;
import com.gitblit.Keys;
import com.gitblit.MailExecutor;
import com.gitblit.client.HeaderPanel;
import com.gitblit.client.Translation;
import com.gitblit.models.UserModel;
import com.gitblit.utils.ArrayUtils;
import com.gitblit.utils.FileUtils;
import com.gitblit.utils.StringUtils;
import com.gitblit.utils.TimeUtils;
import com.gitblit.utils.X509Utils;
import com.gitblit.utils.X509Utils.RevocationReason;
import com.gitblit.utils.X509Utils.X509Log;
import com.gitblit.utils.X509Utils.X509Metadata;
/**
 * Simple GUI tool for administering Gitblit client certificates.
 *
 * @author James Moger
 *
 */
public class GitblitAuthority extends JFrame implements X509Log {
   private static final long serialVersionUID = 1L;
   private final UserCertificateTableModel tableModel;
   private UserCertificatePanel userCertificatePanel;
   private File folder;
   private IStoredSettings gitblitSettings;
   private IUserService userService;
   private String caKeystorePassword;
   private JTable table;
   private int defaultDuration;
   private TableRowSorter<UserCertificateTableModel> defaultSorter;
   private MailExecutor mail;
   private JButton certificateDefaultsButton;
   private JButton newSSLCertificate;
   public static void main(String... args) {
      // filter out the baseFolder parameter
      String folder = "data";
      for (int i = 0; i< args.length; i++) {
         String arg = args[i];
         if (arg.equals("--baseFolder")) {
            if (i + 1 == args.length) {
               System.out.println("Invalid --baseFolder parameter!");
               System.exit(-1);
            } else if (args[i + 1] != ".") {
               folder = args[i+1];
            }
            break;
         }
      }
      final String baseFolder = folder;
      EventQueue.invokeLater(new Runnable() {
         public void run() {
            try {
               UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
            } catch (Exception e) {
            }
            GitblitAuthority authority = new GitblitAuthority();
            authority.initialize(baseFolder);
            authority.setLocationRelativeTo(null);
            authority.setVisible(true);
         }
      });
   }
   public GitblitAuthority() {
      super();
      tableModel = new UserCertificateTableModel();
      defaultSorter = new TableRowSorter<UserCertificateTableModel>(tableModel);
   }
   public void initialize(String baseFolder) {
      setIconImage(new ImageIcon(getClass().getResource("/gitblt-favicon.png")).getImage());
      setTitle("Gitblit Certificate Authority v" + Constants.getVersion() + " (" + Constants.getBuildDate() + ")");
      setContentPane(getUI());
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      addWindowListener(new WindowAdapter() {
         @Override
         public void windowClosing(WindowEvent event) {
            saveSizeAndPosition();
         }
         @Override
         public void windowOpened(WindowEvent event) {
         }
      });
      File folder = new File(baseFolder).getAbsoluteFile();
      load(folder);
      setSizeAndPosition();
   }
   private void setSizeAndPosition() {
      String sz = null;
      String pos = null;
      try {
         StoredConfig config = getConfig();
         sz = config.getString("ui", null, "size");
         pos = config.getString("ui", null, "position");
         defaultDuration = config.getInt("new",  "duration", 365);
      } catch (Throwable t) {
         t.printStackTrace();
      }
      // try to restore saved window size
      if (StringUtils.isEmpty(sz)) {
         setSize(900, 600);
      } else {
         String[] chunks = sz.split("x");
         int width = Integer.parseInt(chunks[0]);
         int height = Integer.parseInt(chunks[1]);
         setSize(width, height);
      }
      // try to restore saved window position
      if (StringUtils.isEmpty(pos)) {
         setLocationRelativeTo(null);
      } else {
         String[] chunks = pos.split(",");
         int x = Integer.parseInt(chunks[0]);
         int y = Integer.parseInt(chunks[1]);
         setLocation(x, y);
      }
   }
   private void saveSizeAndPosition() {
      try {
         // save window size and position
         StoredConfig config = getConfig();
         Dimension sz = GitblitAuthority.this.getSize();
         config.setString("ui", null, "size",
               MessageFormat.format("{0,number,0}x{1,number,0}", sz.width, sz.height));
         Point pos = GitblitAuthority.this.getLocationOnScreen();
         config.setString("ui", null, "position",
               MessageFormat.format("{0,number,0},{1,number,0}", pos.x, pos.y));
         config.save();
      } catch (Throwable t) {
         Utils.showException(GitblitAuthority.this, t);
      }
   }
   private StoredConfig getConfig() throws IOException, ConfigInvalidException {
      File configFile  = new File(folder, X509Utils.CA_CONFIG);
      FileBasedConfig config = new FileBasedConfig(configFile, FS.detect());
      config.load();
      return config;
   }
   private IUserService loadUsers(File folder) {
      File file = new File(folder, "gitblit.properties");
      if (!file.exists()) {
         return null;
      }
      gitblitSettings = new FileSettings(file.getAbsolutePath());
      mail = new MailExecutor(gitblitSettings);
      String us = gitblitSettings.getString(Keys.realm.userService, "${baseFolder}/users.conf");
      String ext = us.substring(us.lastIndexOf(".") + 1).toLowerCase();
      IUserService service = null;
      if (!ext.equals("conf") && !ext.equals("properties")) {
         if (us.equals("com.gitblit.LdapUserService")) {
            us = gitblitSettings.getString(Keys.realm.ldap.backingUserService, "${baseFolder}/users.conf");
         } else if (us.equals("com.gitblit.LdapUserService")) {
            us = gitblitSettings.getString(Keys.realm.redmine.backingUserService, "${baseFolder}/users.conf");
         }
      }
      if (us.endsWith(".conf")) {
         service = new ConfigUserService(FileUtils.resolveParameter(Constants.baseFolder$, folder, us));
      } else {
         throw new RuntimeException("Unsupported user service: " + us);
      }
      service = new ConfigUserService(FileUtils.resolveParameter(Constants.baseFolder$, folder, us));
      return service;
   }
   private void load(File folder) {
      this.folder = folder;
      this.userService = loadUsers(folder);
      System.out.println(Constants.baseFolder$ + " set to " + folder);
      if (userService == null) {
         JOptionPane.showMessageDialog(this, MessageFormat.format("Sorry, {0} doesn't look like a Gitblit GO installation.", folder));
      } else {
         // build empty certificate model for all users
         Map<String, UserCertificateModel> map = new HashMap<String, UserCertificateModel>();
         for (String user : userService.getAllUsernames()) {
            UserModel model = userService.getUserModel(user);
            UserCertificateModel ucm = new UserCertificateModel(model);
            map.put(user, ucm);
         }
         File certificatesConfigFile = new File(folder, X509Utils.CA_CONFIG);
         FileBasedConfig config = new FileBasedConfig(certificatesConfigFile, FS.detect());
         if (certificatesConfigFile.exists()) {
            try {
               config.load();
               // replace user certificate model with actual data
               List<UserCertificateModel> list = UserCertificateConfig.KEY.parse(config).list;
               for (UserCertificateModel ucm : list) {
                  ucm.user = userService.getUserModel(ucm.user.username);
                  map.put(ucm.user.username, ucm);
               }
            } catch (IOException e) {
               e.printStackTrace();
            } catch (ConfigInvalidException e) {
               e.printStackTrace();
            }
         }
         tableModel.list = new ArrayList<UserCertificateModel>(map.values());
         Collections.sort(tableModel.list);
         tableModel.fireTableDataChanged();
         Utils.packColumns(table, Utils.MARGIN);
         File caKeystore = new File(folder, X509Utils.CA_KEY_STORE);
         if (!caKeystore.exists()) {
            if (!X509Utils.unlimitedStrength) {
               // prompt to confirm user understands JCE Standard Strength encryption
               int res = JOptionPane.showConfirmDialog(GitblitAuthority.this, Translation.get("gb.jceWarning"),
                     Translation.get("gb.warning"), JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
               if (res != JOptionPane.YES_OPTION) {
                  if (Desktop.isDesktopSupported()) {
                     if (Desktop.getDesktop().isSupported(Desktop.Action.BROWSE)) {
                        try {
                           Desktop.getDesktop().browse(URI.create("http://www.oracle.com/technetwork/java/javase/downloads/index.html"));
                        } catch (IOException e) {
                        }
                     }
                  }
                  System.exit(1);
               }
            }
            // show certificate defaults dialog
            certificateDefaultsButton.doClick();
            // create "localhost" ssl certificate
            prepareX509Infrastructure();
         }
      }
   }
   private boolean prepareX509Infrastructure() {
      if (caKeystorePassword == null) {
         JPasswordField pass = new JPasswordField(10);
         pass.setText(caKeystorePassword);
         pass.addAncestorListener(new RequestFocusListener());
         JPanel panel = new JPanel(new BorderLayout());
         panel.add(new JLabel(Translation.get("gb.enterKeystorePassword")), BorderLayout.NORTH);
         panel.add(pass, BorderLayout.CENTER);
         int result = JOptionPane.showConfirmDialog(GitblitAuthority.this, panel, Translation.get("gb.password"), JOptionPane.OK_CANCEL_OPTION);
         if (result == JOptionPane.OK_OPTION) {
            caKeystorePassword = new String(pass.getPassword());
         } else {
            return false;
         }
      }
      X509Metadata metadata = new X509Metadata("localhost", caKeystorePassword);
      setMetadataDefaults(metadata);
      metadata.notAfter = new Date(System.currentTimeMillis() + 10*TimeUtils.ONEYEAR);
      X509Utils.prepareX509Infrastructure(metadata, folder, this);
      return true;
   }
   private List<X509Certificate> findCerts(File folder, String username) {
      List<X509Certificate> list = new ArrayList<X509Certificate>();
      File userFolder = new File(folder, X509Utils.CERTS + File.separator + username);
      if (!userFolder.exists()) {
         return list;
      }
      File [] certs = userFolder.listFiles(new FilenameFilter() {
         @Override
         public boolean accept(File dir, String name) {
            return name.toLowerCase().endsWith(".cer") || name.toLowerCase().endsWith(".crt");
         }
      });
      try {
         CertificateFactory factory = CertificateFactory.getInstance("X.509");
         for (File cert : certs) {
            BufferedInputStream is = new BufferedInputStream(new FileInputStream(cert));
            X509Certificate x509 = (X509Certificate) factory.generateCertificate(is);
            is.close();
            list.add(x509);
         }
      } catch (Exception e) {
         Utils.showException(GitblitAuthority.this, e);
      }
      return list;
   }
   private Container getUI() {
      userCertificatePanel = new UserCertificatePanel(this) {
         private static final long serialVersionUID = 1L;
         @Override
         public Insets getInsets() {
            return Utils.INSETS;
         }
         @Override
         public boolean isAllowEmail() {
            return mail.isReady();
         }
         @Override
         public Date getDefaultExpiration() {
            Calendar c = Calendar.getInstance();
            c.add(Calendar.DATE, defaultDuration);
            c.set(Calendar.HOUR_OF_DAY, 0);
            c.set(Calendar.MINUTE, 0);
            c.set(Calendar.SECOND, 0);
            c.set(Calendar.MILLISECOND, 0);
            return c.getTime();
         }
         @Override
         public boolean saveUser(String username, UserCertificateModel ucm) {
            return userService.updateUserModel(username, ucm.user);
         }
         @Override
         public boolean newCertificate(UserCertificateModel ucm, X509Metadata metadata, boolean sendEmail) {
            if (!prepareX509Infrastructure()) {
               return false;
            }
            Date notAfter = metadata.notAfter;
            setMetadataDefaults(metadata);
            metadata.notAfter = notAfter;
            // set user's specified OID values
            UserModel user = ucm.user;
            if (!StringUtils.isEmpty(user.organizationalUnit)) {
               metadata.oids.put("OU", user.organizationalUnit);
            }
            if (!StringUtils.isEmpty(user.organization)) {
               metadata.oids.put("O", user.organization);
            }
            if (!StringUtils.isEmpty(user.locality)) {
               metadata.oids.put("L", user.locality);
            }
            if (!StringUtils.isEmpty(user.stateProvince)) {
               metadata.oids.put("ST", user.stateProvince);
            }
            if (!StringUtils.isEmpty(user.countryCode)) {
               metadata.oids.put("C", user.countryCode);
            }
            File caKeystoreFile = new File(folder, X509Utils.CA_KEY_STORE);
            File zip = X509Utils.newClientBundle(metadata, caKeystoreFile, caKeystorePassword, GitblitAuthority.this);
            // save latest expiration date
            if (ucm.expires == null || metadata.notAfter.before(ucm.expires)) {
               ucm.expires = metadata.notAfter;
            }
            updateAuthorityConfig(ucm);
            // refresh user
            ucm.certs = null;
            int selectedIndex = table.getSelectedRow();
            tableModel.fireTableDataChanged();
            table.getSelectionModel().setSelectionInterval(selectedIndex, selectedIndex);
            if (sendEmail) {
               sendEmail(user, metadata, zip);
            }
            return true;
         }
         @Override
         public boolean revoke(UserCertificateModel ucm, X509Certificate cert, RevocationReason reason) {
            if (!prepareX509Infrastructure()) {
               return false;
            }
            File caRevocationList = new File(folder, X509Utils.CA_REVOCATION_LIST);
            File caKeystoreFile = new File(folder, X509Utils.CA_KEY_STORE);
            if (X509Utils.revoke(cert, reason, caRevocationList, caKeystoreFile, caKeystorePassword, GitblitAuthority.this)) {
               File certificatesConfigFile = new File(folder, X509Utils.CA_CONFIG);
               FileBasedConfig config = new FileBasedConfig(certificatesConfigFile, FS.detect());
               if (certificatesConfigFile.exists()) {
                  try {
                     config.load();
                  } catch (Exception e) {
                     Utils.showException(GitblitAuthority.this, e);
                  }
               }
               // add serial to revoked list
               ucm.revoke(cert.getSerialNumber(), reason);
               ucm.update(config);
               try {
                  config.save();
               } catch (Exception e) {
                  Utils.showException(GitblitAuthority.this, e);
               }
               // refresh user
               ucm.certs = null;
               int modelIndex = table.convertRowIndexToModel(table.getSelectedRow());
               tableModel.fireTableDataChanged();
               table.getSelectionModel().setSelectionInterval(modelIndex, modelIndex);
               return true;
            }
            return false;
         }
      };
      table = Utils.newTable(tableModel, Utils.DATE_FORMAT);
      table.setRowSorter(defaultSorter);
      table.setDefaultRenderer(CertificateStatus.class, new CertificateStatusRenderer());
      table.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
         @Override
         public void valueChanged(ListSelectionEvent e) {
            if (e.getValueIsAdjusting()) {
               return;
            }
            int row = table.getSelectedRow();
            if (row < 0) {
               return;
            }
            int modelIndex = table.convertRowIndexToModel(row);
            UserCertificateModel ucm = tableModel.get(modelIndex);
            if (ucm.certs == null) {
               ucm.certs = findCerts(folder, ucm.user.username);
            }
            userCertificatePanel.setUserCertificateModel(ucm);
         }
      });
      JPanel usersPanel = new JPanel(new BorderLayout()) {
         private static final long serialVersionUID = 1L;
         @Override
         public Insets getInsets() {
            return Utils.INSETS;
         }
      };
      usersPanel.add(new HeaderPanel(Translation.get("gb.users"), "users_16x16.png"), BorderLayout.NORTH);
      usersPanel.add(new JScrollPane(table), BorderLayout.CENTER);
      usersPanel.setMinimumSize(new Dimension(400, 10));
      certificateDefaultsButton = new JButton(new ImageIcon(getClass().getResource("/settings_16x16.png")));
      certificateDefaultsButton.setFocusable(false);
      certificateDefaultsButton.setToolTipText(Translation.get("gb.newCertificateDefaults"));
      certificateDefaultsButton.addActionListener(new ActionListener() {
         @Override
         public void actionPerformed(ActionEvent e) {
            X509Metadata metadata = new X509Metadata("whocares", "whocares");
            File certificatesConfigFile = new File(folder, X509Utils.CA_CONFIG);
            FileBasedConfig config = new FileBasedConfig(certificatesConfigFile, FS.detect());
            NewCertificateConfig certificateConfig = null;
            if (certificatesConfigFile.exists()) {
               try {
                  config.load();
               } catch (Exception x) {
                  Utils.showException(GitblitAuthority.this, x);
               }
               certificateConfig = NewCertificateConfig.KEY.parse(config);
               certificateConfig.update(metadata);
            }
            InputVerifier verifier = new InputVerifier() {
               public boolean verify(JComponent comp) {
                  boolean returnValue;
                  JTextField textField = (JTextField) comp;
                  try {
                     Integer.parseInt(textField.getText());
                     returnValue = true;
                  } catch (NumberFormatException e) {
                     returnValue = false;
                  }
                  return returnValue;
               }
            };
            JTextField siteNameTF = new JTextField(20);
            siteNameTF.setText(gitblitSettings.getString(Keys.web.siteName, "Gitblit"));
            JPanel siteNamePanel = Utils.newFieldPanel(Translation.get("gb.siteName"),
                  siteNameTF, Translation.get("gb.siteNameDescription"));
            JTextField validityTF = new JTextField(4);
            validityTF.setInputVerifier(verifier);
            validityTF.setVerifyInputWhenFocusTarget(true);
            validityTF.setText("" + certificateConfig.duration);
            JPanel validityPanel = Utils.newFieldPanel(Translation.get("gb.validity"),
                  validityTF, Translation.get("gb.duration.days").replace("{0}",  "").trim());
            JPanel p1 = new JPanel(new GridLayout(0, 1, 5, 2));
            p1.add(siteNamePanel);
            p1.add(validityPanel);
            DefaultOidsPanel oids = new DefaultOidsPanel(metadata);
            JPanel panel = new JPanel(new BorderLayout());
            panel.add(p1, BorderLayout.NORTH);
            panel.add(oids, BorderLayout.CENTER);
            int result = JOptionPane.showConfirmDialog(GitblitAuthority.this,
                  panel, Translation.get("gb.newCertificateDefaults"), JOptionPane.OK_CANCEL_OPTION,
                  JOptionPane.QUESTION_MESSAGE, new ImageIcon(getClass().getResource("/settings_32x32.png")));
            if (result == JOptionPane.OK_OPTION) {
               try {
                  oids.update(metadata);
                  certificateConfig.duration = Integer.parseInt(validityTF.getText());
                  certificateConfig.store(config, metadata);
                  config.save();
                  Map<String, String> updates = new HashMap<String, String>();
                  updates.put(Keys.web.siteName, siteNameTF.getText());
                  gitblitSettings.saveSettings(updates);
               } catch (Exception e1) {
                  Utils.showException(GitblitAuthority.this, e1);
               }
            }
         }
      });
      newSSLCertificate = new JButton(new ImageIcon(getClass().getResource("/rosette_16x16.png")));
      newSSLCertificate.setFocusable(false);
      newSSLCertificate.setToolTipText(Translation.get("gb.newSSLCertificate"));
      newSSLCertificate.addActionListener(new ActionListener() {
         @Override
         public void actionPerformed(ActionEvent e) {
            Date defaultExpiration = new Date(System.currentTimeMillis() + 10*TimeUtils.ONEYEAR);
            NewSSLCertificateDialog dialog = new NewSSLCertificateDialog(GitblitAuthority.this, defaultExpiration);
            dialog.setModal(true);
            dialog.setVisible(true);
            if (dialog.isCanceled()) {
               return;
            }
            final Date expires = dialog.getExpiration();
            final String hostname = dialog.getHostname();
            final boolean serveCertificate = dialog.isServeCertificate();
            AuthorityWorker worker = new AuthorityWorker(GitblitAuthority.this) {
               @Override
               protected Boolean doRequest() throws IOException {
                  if (!prepareX509Infrastructure()) {
                     return false;
                  }
                  // read CA private key and certificate
                  File caKeystoreFile = new File(folder, X509Utils.CA_KEY_STORE);
                  PrivateKey caPrivateKey = X509Utils.getPrivateKey(X509Utils.CA_ALIAS, caKeystoreFile, caKeystorePassword);
                  X509Certificate caCert = X509Utils.getCertificate(X509Utils.CA_ALIAS, caKeystoreFile, caKeystorePassword);
                  // generate new SSL certificate
                  X509Metadata metadata = new X509Metadata(hostname, caKeystorePassword);
                  setMetadataDefaults(metadata);
                  metadata.notAfter = expires;
                  File serverKeystoreFile = new File(folder, X509Utils.SERVER_KEY_STORE);
                  X509Certificate cert = X509Utils.newSSLCertificate(metadata, caPrivateKey, caCert, serverKeystoreFile, GitblitAuthority.this);
                  boolean hasCert = cert != null;
                  if (hasCert && serveCertificate) {
                     // update Gitblit https connector alias
                     Map<String, String> updates = new HashMap<String, String>();
                     updates.put(Keys.server.certificateAlias, metadata.commonName);
                     gitblitSettings.saveSettings(updates);
                  }
                  return hasCert;
               }
               @Override
               protected void onSuccess() {
                  if (serveCertificate) {
                     JOptionPane.showMessageDialog(GitblitAuthority.this,
                           MessageFormat.format(Translation.get("gb.sslCertificateGeneratedRestart"), hostname),
                           Translation.get("gb.newSSLCertificate"), JOptionPane.INFORMATION_MESSAGE);
                  } else {
                     JOptionPane.showMessageDialog(GitblitAuthority.this,
                        MessageFormat.format(Translation.get("gb.sslCertificateGenerated"), hostname),
                        Translation.get("gb.newSSLCertificate"), JOptionPane.INFORMATION_MESSAGE);
                  }
               }
            };
            worker.execute();
         }
      });
      JButton emailBundle = new JButton(new ImageIcon(getClass().getResource("/mail_16x16.png")));
      emailBundle.setFocusable(false);
      emailBundle.setToolTipText(Translation.get("gb.emailCertificateBundle"));
      emailBundle.addActionListener(new ActionListener() {
         @Override
         public void actionPerformed(ActionEvent e) {
            int row = table.getSelectedRow();
            if (row < 0) {
               return;
            }
            int modelIndex = table.convertRowIndexToModel(row);
            final UserCertificateModel ucm = tableModel.get(modelIndex);
            if (ArrayUtils.isEmpty(ucm.certs)) {
               JOptionPane.showMessageDialog(GitblitAuthority.this, MessageFormat.format(Translation.get("gb.pleaseGenerateClientCertificate"), ucm.user.getDisplayName()));
            }
            final File zip = new File(folder, X509Utils.CERTS + File.separator + ucm.user.username + File.separator + ucm.user.username + ".zip");
            if (!zip.exists()) {
               return;
            }
            AuthorityWorker worker = new AuthorityWorker(GitblitAuthority.this) {
               @Override
               protected Boolean doRequest() throws IOException {
                  X509Metadata metadata = new X509Metadata(ucm.user.username, "whocares");
                  metadata.serverHostname = gitblitSettings.getString(Keys.web.siteName, Constants.NAME);
                  if (StringUtils.isEmpty(metadata.serverHostname)) {
                     metadata.serverHostname = Constants.NAME;
                  }
                  metadata.userDisplayname = ucm.user.getDisplayName();
                  return sendEmail(ucm.user, metadata, zip);
               }
               @Override
               protected void onSuccess() {
                  JOptionPane.showMessageDialog(GitblitAuthority.this, MessageFormat.format(Translation.get("gb.clientCertificateBundleSent"),
                        ucm.user.getDisplayName()));
               }
            };
            worker.execute();
         }
      });
      JButton logButton = new JButton(new ImageIcon(getClass().getResource("/script_16x16.png")));
      logButton.setFocusable(false);
      logButton.setToolTipText(Translation.get("gb.log"));
      logButton.addActionListener(new ActionListener() {
         @Override
         public void actionPerformed(ActionEvent e) {
            File log = new File(folder, X509Utils.CERTS + File.separator + "log.txt");
            if (log.exists()) {
               String content = FileUtils.readContent(log,  "\n");
               JTextArea textarea = new JTextArea(content);
               JScrollPane scrollPane = new JScrollPane(textarea);
               scrollPane.setPreferredSize(new Dimension(700, 400));
               JOptionPane.showMessageDialog(GitblitAuthority.this, scrollPane, log.getAbsolutePath(), JOptionPane.INFORMATION_MESSAGE);
            }
         }
      });
      final JTextField filterTextfield = new JTextField(15);
      filterTextfield.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent e) {
            filterUsers(filterTextfield.getText());
         }
      });
      filterTextfield.addKeyListener(new KeyAdapter() {
         public void keyReleased(KeyEvent e) {
            filterUsers(filterTextfield.getText());
         }
      });
      JToolBar buttonControls = new JToolBar(JToolBar.HORIZONTAL);
      buttonControls.setFloatable(false);
      buttonControls.add(certificateDefaultsButton);
      buttonControls.add(newSSLCertificate);
      buttonControls.add(emailBundle);
      buttonControls.add(logButton);
      JPanel userControls = new JPanel(new FlowLayout(FlowLayout.RIGHT, Utils.MARGIN, Utils.MARGIN));
      userControls.add(new JLabel(Translation.get("gb.filter")));
      userControls.add(filterTextfield);
      JPanel topPanel = new JPanel(new BorderLayout(0, 0));
      topPanel.add(buttonControls, BorderLayout.WEST);
      topPanel.add(userControls, BorderLayout.EAST);
      JPanel leftPanel = new JPanel(new BorderLayout());
      leftPanel.add(topPanel, BorderLayout.NORTH);
      leftPanel.add(usersPanel, BorderLayout.CENTER);
      userCertificatePanel.setMinimumSize(new Dimension(375, 10));
      JLabel statusLabel = new JLabel();
      statusLabel.setHorizontalAlignment(SwingConstants.RIGHT);
      if (X509Utils.unlimitedStrength) {
         statusLabel.setText("JCE Unlimited Strength Jurisdiction Policy");
      } else {
         statusLabel.setText("JCE Standard Encryption Policy");
      }
      JPanel root = new JPanel(new BorderLayout()) {
         private static final long serialVersionUID = 1L;
         public Insets getInsets() {
            return Utils.INSETS;
         }
      };
      JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, leftPanel, userCertificatePanel);
      splitPane.setDividerLocation(1d);
      root.add(splitPane, BorderLayout.CENTER);
      root.add(statusLabel, BorderLayout.SOUTH);
      return root;
   }
   private void filterUsers(final String fragment) {
      table.clearSelection();
      userCertificatePanel.setUserCertificateModel(null);
      if (StringUtils.isEmpty(fragment)) {
         table.setRowSorter(defaultSorter);
         return;
      }
      RowFilter<UserCertificateTableModel, Object> containsFilter = new RowFilter<UserCertificateTableModel, Object>() {
         public boolean include(Entry<? extends UserCertificateTableModel, ? extends Object> entry) {
            for (int i = entry.getValueCount() - 1; i >= 0; i--) {
               if (entry.getStringValue(i).toLowerCase().contains(fragment.toLowerCase())) {
                  return true;
               }
            }
            return false;
         }
      };
      TableRowSorter<UserCertificateTableModel> sorter = new TableRowSorter<UserCertificateTableModel>(
            tableModel);
      sorter.setRowFilter(containsFilter);
      table.setRowSorter(sorter);
   }
   @Override
   public void log(String message) {
      BufferedWriter writer = null;
      try {
         writer = new BufferedWriter(new FileWriter(new File(folder, X509Utils.CERTS + File.separator + "log.txt"), true));
         writer.write(MessageFormat.format("{0,date,yyyy-MM-dd HH:mm}: {1}", new Date(), message));
         writer.newLine();
         writer.flush();
      } catch (Exception e) {
         LoggerFactory.getLogger(GitblitAuthority.class).error("Failed to append log entry!", e);
      } finally {
         if (writer != null) {
            try {
               writer.close();
            } catch (IOException e) {
            }
         }
      }
   }
   private boolean sendEmail(UserModel user, X509Metadata metadata, File zip) {
      // send email
      try {
         if (mail.isReady()) {
            Message message = mail.createMessage(user.emailAddress);
            message.setSubject("Your Gitblit client certificate for " + metadata.serverHostname);
            // body of email
            String body = X509Utils.processTemplate(new File(folder, X509Utils.CERTS + File.separator + "mail.tmpl"), metadata);
            if (StringUtils.isEmpty(body)) {
               body = MessageFormat.format("Hi {0}\n\nHere is your client certificate bundle.\nInside the zip file are installation instructions.", user.getDisplayName());
            }
            Multipart mp = new MimeMultipart();
            MimeBodyPart messagePart = new MimeBodyPart();
            messagePart.setText(body);
            mp.addBodyPart(messagePart);
            // attach zip
            MimeBodyPart filePart = new MimeBodyPart();
            FileDataSource fds = new FileDataSource(zip);
            filePart.setDataHandler(new DataHandler(fds));
            filePart.setFileName(fds.getName());
            mp.addBodyPart(filePart);
            message.setContent(mp);
            mail.sendNow(message);
            return true;
         } else {
            JOptionPane.showMessageDialog(GitblitAuthority.this, "Sorry, the mail server settings are not configured properly.\nCan not send email.", Translation.get("gb.error"), JOptionPane.ERROR_MESSAGE);
         }
      } catch (Exception e) {
         Utils.showException(GitblitAuthority.this, e);
      }
      return false;
   }
   private void setMetadataDefaults(X509Metadata metadata) {
      metadata.serverHostname = gitblitSettings.getString(Keys.web.siteName, Constants.NAME);
      if (StringUtils.isEmpty(metadata.serverHostname)) {
         metadata.serverHostname = Constants.NAME;
      }
      // set default values from config file
      File certificatesConfigFile = new File(folder, X509Utils.CA_CONFIG);
      FileBasedConfig config = new FileBasedConfig(certificatesConfigFile, FS.detect());
      if (certificatesConfigFile.exists()) {
         try {
            config.load();
         } catch (Exception e) {
            Utils.showException(GitblitAuthority.this, e);
         }
         NewCertificateConfig certificateConfig = NewCertificateConfig.KEY.parse(config);
         certificateConfig.update(metadata);
      }
   }
   private void updateAuthorityConfig(UserCertificateModel ucm) {
      File certificatesConfigFile = new File(folder, X509Utils.CA_CONFIG);
      FileBasedConfig config = new FileBasedConfig(certificatesConfigFile, FS.detect());
      if (certificatesConfigFile.exists()) {
         try {
            config.load();
         } catch (Exception e) {
            Utils.showException(GitblitAuthority.this, e);
         }
      }
      ucm.update(config);
      try {
         config.save();
      } catch (Exception e) {
         Utils.showException(GitblitAuthority.this, e);
      }
   }
}