plugins/svn4idea/src/org/jetbrains/idea/svn/dialogs/SSHCredentialsDialog.java - platform/tools/idea - Git at Google

 /*
  * Copyright 2000-2012 JetBrains s.r.o.
  *
  * 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 org.jetbrains.idea.svn.dialogs;

 import com.intellij.ide.util.PropertiesComponent;
 import com.intellij.openapi.fileChooser.FileChooser;
 import com.intellij.openapi.fileChooser.FileChooserDescriptor;
 import com.intellij.openapi.fileChooser.FileChooserDescriptorFactory;
 import com.intellij.openapi.help.HelpManager;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.DialogWrapper;
 import com.intellij.openapi.ui.TextFieldWithBrowseButton;
 import com.intellij.openapi.util.io.FileUtil;
 import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.openapi.vfs.VirtualFileManager;
 import com.intellij.ui.components.JBRadioButton;
 import com.intellij.util.Consumer;
 import com.intellij.util.SystemProperties;
 import com.intellij.util.ui.UIUtil;
 import com.trilead.ssh2.crypto.PEMDecoder;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.idea.svn.SvnBundle;
 import org.tmatesoft.svn.core.internal.io.svn.SVNSSHPrivateKeyUtil;

 import javax.swing.*;
 import javax.swing.event.DocumentEvent;
 import javax.swing.event.DocumentListener;
 import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.awt.event.FocusAdapter;
 import java.awt.event.FocusEvent;
 import java.io.File;
 import java.io.IOException;
 import java.util.List;

 /**
  * @author alex
  */
 public class SSHCredentialsDialog extends DialogWrapper implements ActionListener, DocumentListener {
   private boolean myAllowSave;
   private boolean myIsAgentAllowed;
   private String myUserName;

   private String myRealm;
   private JTextField myUserNameText;
   private JCheckBox myAllowSaveCheckBox;
   private JPasswordField myPasswordText;
   private JPasswordField myPassphraseText;
   private TextFieldWithBrowseButton myKeyFileText;
   private JBRadioButton mySshAgentButton;
   private JRadioButton myPasswordButton;
   private JRadioButton myKeyButton;
   private JLabel myPasswordLabel;
   private JLabel myKeyFileLabel;
   private JLabel myPortLabel;
   private JTextField myPortField;
   private JLabel myPassphraseLabel;
   private final Project myProject;

   @NonNls private static final String HELP_ID = "vcs.subversion.authentication";
   private boolean myKeyFileEmptyOrCorrect;

   protected SSHCredentialsDialog(Project project,
                                  String realm,
                                  String userName,
                                  boolean allowSave,
                                  final int port,
                                  boolean isAgentAllowed) {
     super(project, true);
     myProject = project;
     myRealm = realm;
     myUserName = userName;
     myAllowSave = allowSave;
     myIsAgentAllowed = isAgentAllowed;
     setResizable(true);
     getHelpAction().setEnabled(true);
     init();
     myPortField.setText("" + port);
     myKeyFileEmptyOrCorrect = true;
   }

   protected void doHelpAction() {
     HelpManager.getInstance().invokeHelp(HELP_ID);
   }

   @NotNull
   protected Action[] createActions() {
     return new Action[]{getOKAction(), getCancelAction(), getHelpAction()};
   }

   protected JComponent createCenterPanel() {
     JPanel panel = new JPanel();
     panel.setLayout(new GridBagLayout());

     GridBagConstraints gb = new GridBagConstraints();

     // top label.
     gb.insets = new Insets(2, 2, 2, 2);
     gb.weightx = 1;
     gb.weighty = 0;
     gb.gridwidth = 3;
     gb.gridheight = 1;
     gb.gridx = 0;
     gb.gridy = 0;
     gb.anchor = GridBagConstraints.WEST;
     gb.fill = GridBagConstraints.HORIZONTAL;

     JLabel label = new JLabel(SvnBundle.message("label.ssh.authentication.realm", myRealm));
     panel.add(label, gb);

     // user name
     gb.gridy += 1;
     gb.gridwidth = 1;
     gb.weightx = 0;
     gb.fill = GridBagConstraints.NONE;

     label = new JLabel(SvnBundle.message("label.ssh.user.name"));
     panel.add(label, gb);

     // user name field
     gb.gridx = 1;
     gb.gridwidth = 2;
     gb.weightx = 1;
     gb.fill = GridBagConstraints.HORIZONTAL;

     myUserNameText = new JTextField();
     panel.add(myUserNameText, gb);
     label.setLabelFor(myUserNameText);

     if (myUserName != null) {
       myUserNameText.setText(myUserName);
     }
     myUserNameText.selectAll();
     myUserNameText.getDocument().addDocumentListener(this);

     gb.gridy += 1;
     gb.weightx = 0;
     gb.gridx = 0;
     gb.fill = GridBagConstraints.NONE;
     gb.gridwidth = 3;

     // ssh agent type
     mySshAgentButton = new JBRadioButton(SvnBundle.message("radio.ssh.authentication.with.agent"));
     panel.add(mySshAgentButton, gb);
     gb.gridy += 1;
     gb.weightx = 0;
     gb.gridx = 0;
     gb.fill = GridBagConstraints.NONE;
     gb.gridwidth = 3;

     // password type
     myPasswordButton = new JRadioButton(SvnBundle.message("radio.ssh.authentication.with.password"));
     panel.add(myPasswordButton, gb);

     gb.gridy += 1;
     gb.weightx = 0;
     gb.gridx = 0;
     gb.gridwidth = 1;
     gb.fill = GridBagConstraints.NONE;
     gb.gridwidth = 1;

     myPasswordLabel = new JLabel(SvnBundle.message("label.ssh.password"));
     panel.add(myPasswordLabel, gb);

     // passworde field
     gb.gridx = 1;
     gb.weightx = 1;
     gb.gridwidth = 2;
     gb.fill = GridBagConstraints.HORIZONTAL;

     myPasswordText = new JPasswordField();
     panel.add(myPasswordText, gb);
     myPasswordLabel.setLabelFor(myPasswordText);

     gb.gridy += 1;
     gb.weightx = 0;
     gb.gridx = 0;
     gb.fill = GridBagConstraints.NONE;
     gb.gridwidth = 3;
     myKeyButton = new JRadioButton(SvnBundle.message("radio.ssh.authentication.private.key"));
     panel.add(myKeyButton, gb);

     // key file.
     gb.gridy += 1;
     gb.weightx = 0;
     gb.gridx = 0;
     gb.gridwidth = 1;
     gb.fill = GridBagConstraints.NONE;
     gb.gridwidth = 1;

     myKeyFileLabel = new JLabel(SvnBundle.message("label.ssh.key.file"));
     panel.add(myKeyFileLabel, gb);

     // key field
     gb.gridx = 1;
     gb.weightx = 1;
     gb.gridwidth = 2;
     gb.fill = GridBagConstraints.HORIZONTAL;

     myKeyFileText = new TextFieldWithBrowseButton(this);
     myKeyFileText.setEditable(false);
     panel.add(myKeyFileText, gb);
     myKeyFileLabel.setLabelFor(myKeyFileText);

     gb.gridy += 1;
     gb.weightx = 0;
     gb.gridx = 0;
     gb.gridwidth = 1;
     gb.fill = GridBagConstraints.NONE;
     gb.gridwidth = 1;

     myPassphraseLabel = new JLabel(SvnBundle.message("label.ssh.passphrase"));
     panel.add(myPassphraseLabel, gb);

     // key field
     gb.gridx = 1;
     gb.weightx = 1;
     gb.gridwidth = 2;
     gb.fill = GridBagConstraints.HORIZONTAL;

     myPassphraseText = new JPasswordField(30);
     panel.add(myPassphraseText, gb);
     myPassphraseText.getDocument().addDocumentListener(this);
     myPassphraseText.addFocusListener(new FocusAdapter() {
       @Override
       public void focusLost(FocusEvent e) {
         checkKeyFile();
         updateOKButton();
       }
     });

     myPassphraseLabel.setLabelFor(myPassphraseText);

     // key file.
     gb.gridy += 1;
     gb.weightx = 0;
     gb.gridx = 0;
     gb.gridwidth = 1;
     gb.fill = GridBagConstraints.NONE;
     gb.gridwidth = 1;

     myPortLabel = new JLabel(SvnBundle.message("label.ssh.port"));
     panel.add(myPortLabel, gb);

     // key field
     gb.gridx = 1;
     gb.weightx = 0;
     gb.gridwidth = 2;
     gb.fill = GridBagConstraints.NONE;

     myPortField = new JTextField();
     myPortField.setColumns(6);
     panel.add(myPortField, gb);
     myPortLabel.setLabelFor(myPortField);
     myPortField.setText("22");
     myPortField.setMinimumSize(myPortField.getPreferredSize());
     myPortField.getDocument().addDocumentListener(this);

     ButtonGroup group = new ButtonGroup();
     group.add(mySshAgentButton);
     group.add(myPasswordButton);
     group.add(myKeyButton);

     mySshAgentButton.setEnabled(myIsAgentAllowed);
     group.setSelected((myIsAgentAllowed ? mySshAgentButton : myPasswordButton).getModel(), true);

     gb.gridy += 1;
     gb.gridx = 0;
     gb.gridwidth = 3;
     gb.weightx = 1;
     gb.anchor = GridBagConstraints.WEST;
     gb.fill = GridBagConstraints.HORIZONTAL;
     myAllowSaveCheckBox = new JCheckBox(SvnBundle.message("checkbox.ssh.keep.for.current.session"));
     panel.add(myAllowSaveCheckBox, gb);
     if (! myAllowSave) {
       gb.gridy += 1;
       final JLabel cannotSaveLabel = new JLabel(SvnBundle.message("svn.cannot.save.credentials.store-auth-creds"));
       cannotSaveLabel.setForeground(UIUtil.getInactiveTextColor());
       panel.add(cannotSaveLabel, gb);
     }
     gb.gridy += 1;
     panel.add(new JSeparator(), gb);

     gb.gridy += 1;
     gb.weighty = 1;
     panel.add(new JLabel(), gb);

     myAllowSaveCheckBox.setSelected(false);
     myAllowSaveCheckBox.setEnabled(myAllowSave);

     mySshAgentButton.addActionListener(this);
     myKeyButton.addActionListener(this);
     myPasswordButton.addActionListener(this);

     updateFields();
     updateOKButton();

     return panel;
   }

   public JComponent getPreferredFocusedComponent() {
     return myUserNameText;
   }

   public boolean shouldCloseOnCross() {
     return true;
   }

   protected String getDimensionServiceKey() {
     return "svn.sshPasswordDialog";
   }

   public boolean isOKActionEnabled() {
     boolean ok = myUserNameText != null && myUserNameText.getText().trim().length() > 0;
     if (ok) {
       if (myPasswordButton.isSelected()) {
         ok = myPasswordText != null && myPasswordText.getPassword() != null;
       }
       else if (myKeyButton.isSelected()) {
         if (! myKeyFileEmptyOrCorrect) return false;
         ok = myKeyFileText != null && myKeyFileText.getText().trim().length() > 0;
       }
       else {
         ok = mySshAgentButton.isSelected();
       }
         if (ok) {
             String portNumber = myPortField.getText();
             try {
                 int port = Integer.parseInt(portNumber);
                 ok = port > 0;
             } catch (NumberFormatException nfe) {
                 ok = false;
             }
         }
     }
     return ok;
   }

   public boolean isSshAgentSelected() {
     return mySshAgentButton.isSelected();
   }

   public String getUserName() {
     return isOK() && myUserNameText != null ? myUserNameText.getText() : null;
   }

   public String getKeyFile() {
     if (myKeyFileText.isEnabled()) {
       return myKeyFileText.getText();
     }
     return null;
   }

   public int getPortNumber() {
       String portNumber = myPortField.getText();
       int port = 22;
       try {
           port = Integer.parseInt(portNumber);
       } catch (NumberFormatException nfe) {
           port = 22;
       }
       if (port <= 0) {
           port = 22;
       }
       return port;
   }

   public String getPassphrase() {
     if (myPassphraseText == null || !myPassphraseText.isEnabled()) {
       return null;
     }
     if (isOK()) {
       char[] pwd = myPassphraseText.getPassword();
       if (pwd != null) {
         return new String(pwd);
       }
     }
     return null;
   }

   public String getPassword() {
     if (myPasswordText != null && !myPasswordText.isEnabled()) {
       return null;
     }
     if (isOK() && myPasswordText != null) {
       char[] pwd = myPasswordText.getPassword();
       if (pwd != null) {
         return new String(pwd);
       }
     }
     return null;
   }

   public boolean isSaveAllowed() {
     return isOK() && myAllowSave && myAllowSaveCheckBox != null && myAllowSaveCheckBox.isSelected();
   }

   public void actionPerformed(ActionEvent e) {
     if (e.getSource() == myPasswordButton || e.getSource() == myKeyButton || e.getSource() == mySshAgentButton) {
       updateFields();
       checkKeyFile();
       updateOKButton();
     }
     else {
       final String[] path = {myKeyFileText.getText()};
       VirtualFile file;
       if (path[0] != null && path[0].trim().length() > 0) {
         path[0] = "file://" + path[0].replace(File.separatorChar, '/');
         file = VirtualFileManager.getInstance().findFileByUrl(path[0]);
       }
       else {
         path[0] = "file://" + SystemProperties.getUserHome() + "/.ssh/identity";
         path[0] = path[0].replace(File.separatorChar, '/');
         file = VirtualFileManager.getInstance().findFileByUrl(path[0]);
         if (file == null || !file.exists()) {
           path[0] = "file://" + SystemProperties.getUserHome() + "/.ssh";
           file = VirtualFileManager.getInstance().findFileByUrl(path[0]);
         }
       }
       FileChooserDescriptor descriptor = FileChooserDescriptorFactory.createSingleFileNoJarsDescriptor();

       descriptor.setShowFileSystemRoots(true);
       descriptor.setTitle(SvnBundle.message("dialog.title.openssh.v2.private.key"));
       descriptor.setDescription(SvnBundle.message("dialog.description.openssh.v2.private.key"));
       descriptor.setHideIgnored(false);

       final String oldValue = PropertiesComponent.getInstance().getValue("FileChooser.showHiddens");
       PropertiesComponent.getInstance().setValue("FileChooser.showHiddens", Boolean.TRUE.toString());

       FileChooser.chooseFiles(descriptor, myProject, file, new Consumer<List<VirtualFile>>() {
         @Override
         public void consume(List<VirtualFile> files) {
           PropertiesComponent.getInstance().setValue("FileChooser.showHiddens", oldValue);
           if (files.size() == 1) {
             path[0] = FileUtil.toSystemDependentName(files.get(0).getPath());
             myKeyFileText.setText(path[0]);
           }
           checkKeyFile();
           updateOKButton();
         }
       });
     }
   }

   private void checkKeyFile() {
     myKeyFileEmptyOrCorrect = true;
     setErrorText(null);

     if (! myKeyButton.isSelected()) return;
     final String text = myKeyFileText.getText();
     if (StringUtil.isEmptyOrSpaces(text)) return;
     final File file = new File(text);
     if (! file.exists()) {
       setErrorText("Private key file does not exist");
       myKeyFileEmptyOrCorrect = false;
       return;
     }
     final char[] password = myPassphraseText.getPassword();
     try {
       PEMDecoder.decode(SVNSSHPrivateKeyUtil.readPrivateKey(file), String.valueOf(password));
     }
     catch (IOException e) {
       setErrorText("Private key file is not valid. " + e.getMessage());
       myKeyFileEmptyOrCorrect = false;
     }
   }

   private void updateOKButton() {
     getOKAction().setEnabled(isOKActionEnabled());
   }

   private void updateFields() {
     myPasswordText.setEnabled(myPasswordButton.isSelected());
     myPasswordLabel.setEnabled(myPasswordButton.isSelected());

     myKeyFileText.setEnabled(myKeyButton.isSelected());
     myKeyFileLabel.setEnabled(myKeyButton.isSelected());
     myPassphraseLabel.setEnabled(myKeyButton.isSelected());
     myPassphraseText.setEnabled(myKeyButton.isSelected());
   }

   public void insertUpdate(DocumentEvent e) {
     updateOKButton();
   }

   public void removeUpdate(DocumentEvent e) {
     updateOKButton();
   }

   public void changedUpdate(DocumentEvent e) {
     updateOKButton();
   }

   @Override
   protected void doOKAction() {
     checkKeyFile();
     updateOKButton();
     if (! isOKActionEnabled()) return;
     super.doOKAction();
   }
 }
	/*
	* Copyright 2000-2012 JetBrains s.r.o.
	*
	* 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 org.jetbrains.idea.svn.dialogs;

	import com.intellij.ide.util.PropertiesComponent;
	import com.intellij.openapi.fileChooser.FileChooser;
	import com.intellij.openapi.fileChooser.FileChooserDescriptor;
	import com.intellij.openapi.fileChooser.FileChooserDescriptorFactory;
	import com.intellij.openapi.help.HelpManager;
	import com.intellij.openapi.project.Project;
	import com.intellij.openapi.ui.DialogWrapper;
	import com.intellij.openapi.ui.TextFieldWithBrowseButton;
	import com.intellij.openapi.util.io.FileUtil;
	import com.intellij.openapi.util.text.StringUtil;
	import com.intellij.openapi.vfs.VirtualFile;
	import com.intellij.openapi.vfs.VirtualFileManager;
	import com.intellij.ui.components.JBRadioButton;
	import com.intellij.util.Consumer;
	import com.intellij.util.SystemProperties;
	import com.intellij.util.ui.UIUtil;
	import com.trilead.ssh2.crypto.PEMDecoder;
	import org.jetbrains.annotations.NonNls;
	import org.jetbrains.annotations.NotNull;
	import org.jetbrains.idea.svn.SvnBundle;
	import org.tmatesoft.svn.core.internal.io.svn.SVNSSHPrivateKeyUtil;

	import javax.swing.*;
	import javax.swing.event.DocumentEvent;
	import javax.swing.event.DocumentListener;
	import java.awt.*;
	import java.awt.event.ActionEvent;
	import java.awt.event.ActionListener;
	import java.awt.event.FocusAdapter;
	import java.awt.event.FocusEvent;
	import java.io.File;
	import java.io.IOException;
	import java.util.List;

	/**
	* @author alex
	*/
	public class SSHCredentialsDialog extends DialogWrapper implements ActionListener, DocumentListener {
	private boolean myAllowSave;
	private boolean myIsAgentAllowed;
	private String myUserName;

	private String myRealm;
	private JTextField myUserNameText;
	private JCheckBox myAllowSaveCheckBox;
	private JPasswordField myPasswordText;
	private JPasswordField myPassphraseText;
	private TextFieldWithBrowseButton myKeyFileText;
	private JBRadioButton mySshAgentButton;
	private JRadioButton myPasswordButton;
	private JRadioButton myKeyButton;
	private JLabel myPasswordLabel;
	private JLabel myKeyFileLabel;
	private JLabel myPortLabel;
	private JTextField myPortField;
	private JLabel myPassphraseLabel;
	private final Project myProject;

	@NonNls private static final String HELP_ID = "vcs.subversion.authentication";
	private boolean myKeyFileEmptyOrCorrect;

	protected SSHCredentialsDialog(Project project,
	String realm,
	String userName,
	boolean allowSave,
	final int port,
	boolean isAgentAllowed) {
	super(project, true);
	myProject = project;
	myRealm = realm;
	myUserName = userName;
	myAllowSave = allowSave;
	myIsAgentAllowed = isAgentAllowed;
	setResizable(true);
	getHelpAction().setEnabled(true);
	init();
	myPortField.setText("" + port);
	myKeyFileEmptyOrCorrect = true;
	}

	protected void doHelpAction() {
	HelpManager.getInstance().invokeHelp(HELP_ID);
	}

	@NotNull
	protected Action[] createActions() {
	return new Action[]{getOKAction(), getCancelAction(), getHelpAction()};
	}

	protected JComponent createCenterPanel() {
	JPanel panel = new JPanel();
	panel.setLayout(new GridBagLayout());

	GridBagConstraints gb = new GridBagConstraints();

	// top label.
	gb.insets = new Insets(2, 2, 2, 2);
	gb.weightx = 1;
	gb.weighty = 0;
	gb.gridwidth = 3;
	gb.gridheight = 1;
	gb.gridx = 0;
	gb.gridy = 0;
	gb.anchor = GridBagConstraints.WEST;
	gb.fill = GridBagConstraints.HORIZONTAL;

	JLabel label = new JLabel(SvnBundle.message("label.ssh.authentication.realm", myRealm));
	panel.add(label, gb);

	// user name
	gb.gridy += 1;
	gb.gridwidth = 1;
	gb.weightx = 0;
	gb.fill = GridBagConstraints.NONE;

	label = new JLabel(SvnBundle.message("label.ssh.user.name"));
	panel.add(label, gb);

	// user name field
	gb.gridx = 1;
	gb.gridwidth = 2;
	gb.weightx = 1;
	gb.fill = GridBagConstraints.HORIZONTAL;

	myUserNameText = new JTextField();
	panel.add(myUserNameText, gb);
	label.setLabelFor(myUserNameText);

	if (myUserName != null) {
	myUserNameText.setText(myUserName);
	}
	myUserNameText.selectAll();
	myUserNameText.getDocument().addDocumentListener(this);

	gb.gridy += 1;
	gb.weightx = 0;
	gb.gridx = 0;
	gb.fill = GridBagConstraints.NONE;
	gb.gridwidth = 3;

	// ssh agent type
	mySshAgentButton = new JBRadioButton(SvnBundle.message("radio.ssh.authentication.with.agent"));
	panel.add(mySshAgentButton, gb);
	gb.gridy += 1;
	gb.weightx = 0;
	gb.gridx = 0;
	gb.fill = GridBagConstraints.NONE;
	gb.gridwidth = 3;

	// password type
	myPasswordButton = new JRadioButton(SvnBundle.message("radio.ssh.authentication.with.password"));
	panel.add(myPasswordButton, gb);

	gb.gridy += 1;
	gb.weightx = 0;
	gb.gridx = 0;
	gb.gridwidth = 1;
	gb.fill = GridBagConstraints.NONE;
	gb.gridwidth = 1;

	myPasswordLabel = new JLabel(SvnBundle.message("label.ssh.password"));
	panel.add(myPasswordLabel, gb);

	// passworde field
	gb.gridx = 1;
	gb.weightx = 1;
	gb.gridwidth = 2;
	gb.fill = GridBagConstraints.HORIZONTAL;

	myPasswordText = new JPasswordField();
	panel.add(myPasswordText, gb);
	myPasswordLabel.setLabelFor(myPasswordText);

	gb.gridy += 1;
	gb.weightx = 0;
	gb.gridx = 0;
	gb.fill = GridBagConstraints.NONE;
	gb.gridwidth = 3;
	myKeyButton = new JRadioButton(SvnBundle.message("radio.ssh.authentication.private.key"));
	panel.add(myKeyButton, gb);

	// key file.
	gb.gridy += 1;
	gb.weightx = 0;
	gb.gridx = 0;
	gb.gridwidth = 1;
	gb.fill = GridBagConstraints.NONE;
	gb.gridwidth = 1;

	myKeyFileLabel = new JLabel(SvnBundle.message("label.ssh.key.file"));
	panel.add(myKeyFileLabel, gb);

	// key field
	gb.gridx = 1;
	gb.weightx = 1;
	gb.gridwidth = 2;
	gb.fill = GridBagConstraints.HORIZONTAL;

	myKeyFileText = new TextFieldWithBrowseButton(this);
	myKeyFileText.setEditable(false);
	panel.add(myKeyFileText, gb);
	myKeyFileLabel.setLabelFor(myKeyFileText);

	gb.gridy += 1;
	gb.weightx = 0;
	gb.gridx = 0;
	gb.gridwidth = 1;
	gb.fill = GridBagConstraints.NONE;
	gb.gridwidth = 1;

	myPassphraseLabel = new JLabel(SvnBundle.message("label.ssh.passphrase"));
	panel.add(myPassphraseLabel, gb);

	// key field
	gb.gridx = 1;
	gb.weightx = 1;
	gb.gridwidth = 2;
	gb.fill = GridBagConstraints.HORIZONTAL;

	myPassphraseText = new JPasswordField(30);
	panel.add(myPassphraseText, gb);
	myPassphraseText.getDocument().addDocumentListener(this);
	myPassphraseText.addFocusListener(new FocusAdapter() {
	@Override
	public void focusLost(FocusEvent e) {
	checkKeyFile();
	updateOKButton();
	}
	});

	myPassphraseLabel.setLabelFor(myPassphraseText);

	// key file.
	gb.gridy += 1;
	gb.weightx = 0;
	gb.gridx = 0;
	gb.gridwidth = 1;
	gb.fill = GridBagConstraints.NONE;
	gb.gridwidth = 1;

	myPortLabel = new JLabel(SvnBundle.message("label.ssh.port"));
	panel.add(myPortLabel, gb);

	// key field
	gb.gridx = 1;
	gb.weightx = 0;
	gb.gridwidth = 2;
	gb.fill = GridBagConstraints.NONE;

	myPortField = new JTextField();
	myPortField.setColumns(6);
	panel.add(myPortField, gb);
	myPortLabel.setLabelFor(myPortField);
	myPortField.setText("22");
	myPortField.setMinimumSize(myPortField.getPreferredSize());
	myPortField.getDocument().addDocumentListener(this);

	ButtonGroup group = new ButtonGroup();
	group.add(mySshAgentButton);
	group.add(myPasswordButton);
	group.add(myKeyButton);

	mySshAgentButton.setEnabled(myIsAgentAllowed);
	group.setSelected((myIsAgentAllowed ? mySshAgentButton : myPasswordButton).getModel(), true);

	gb.gridy += 1;
	gb.gridx = 0;
	gb.gridwidth = 3;
	gb.weightx = 1;
	gb.anchor = GridBagConstraints.WEST;
	gb.fill = GridBagConstraints.HORIZONTAL;
	myAllowSaveCheckBox = new JCheckBox(SvnBundle.message("checkbox.ssh.keep.for.current.session"));
	panel.add(myAllowSaveCheckBox, gb);
	if (! myAllowSave) {
	gb.gridy += 1;
	final JLabel cannotSaveLabel = new JLabel(SvnBundle.message("svn.cannot.save.credentials.store-auth-creds"));
	cannotSaveLabel.setForeground(UIUtil.getInactiveTextColor());
	panel.add(cannotSaveLabel, gb);
	}
	gb.gridy += 1;
	panel.add(new JSeparator(), gb);

	gb.gridy += 1;
	gb.weighty = 1;
	panel.add(new JLabel(), gb);

	myAllowSaveCheckBox.setSelected(false);
	myAllowSaveCheckBox.setEnabled(myAllowSave);

	mySshAgentButton.addActionListener(this);
	myKeyButton.addActionListener(this);
	myPasswordButton.addActionListener(this);

	updateFields();
	updateOKButton();

	return panel;
	}

	public JComponent getPreferredFocusedComponent() {
	return myUserNameText;
	}

	public boolean shouldCloseOnCross() {
	return true;
	}

	protected String getDimensionServiceKey() {
	return "svn.sshPasswordDialog";
	}

	public boolean isOKActionEnabled() {
	boolean ok = myUserNameText != null && myUserNameText.getText().trim().length() > 0;
	if (ok) {
	if (myPasswordButton.isSelected()) {
	ok = myPasswordText != null && myPasswordText.getPassword() != null;
	}
	else if (myKeyButton.isSelected()) {
	if (! myKeyFileEmptyOrCorrect) return false;
	ok = myKeyFileText != null && myKeyFileText.getText().trim().length() > 0;
	}
	else {
	ok = mySshAgentButton.isSelected();
	}
	if (ok) {
	String portNumber = myPortField.getText();
	try {
	int port = Integer.parseInt(portNumber);
	ok = port > 0;
	} catch (NumberFormatException nfe) {
	ok = false;
	}
	}
	}
	return ok;
	}

	public boolean isSshAgentSelected() {
	return mySshAgentButton.isSelected();
	}

	public String getUserName() {
	return isOK() && myUserNameText != null ? myUserNameText.getText() : null;
	}

	public String getKeyFile() {
	if (myKeyFileText.isEnabled()) {
	return myKeyFileText.getText();
	}
	return null;
	}

	public int getPortNumber() {
	String portNumber = myPortField.getText();
	int port = 22;
	try {
	port = Integer.parseInt(portNumber);
	} catch (NumberFormatException nfe) {
	port = 22;
	}
	if (port <= 0) {
	port = 22;
	}
	return port;
	}

	public String getPassphrase() {
	if (myPassphraseText == null \|\| !myPassphraseText.isEnabled()) {
	return null;
	}
	if (isOK()) {
	char[] pwd = myPassphraseText.getPassword();
	if (pwd != null) {
	return new String(pwd);
	}
	}
	return null;
	}

	public String getPassword() {
	if (myPasswordText != null && !myPasswordText.isEnabled()) {
	return null;
	}
	if (isOK() && myPasswordText != null) {
	char[] pwd = myPasswordText.getPassword();
	if (pwd != null) {
	return new String(pwd);
	}
	}
	return null;
	}

	public boolean isSaveAllowed() {
	return isOK() && myAllowSave && myAllowSaveCheckBox != null && myAllowSaveCheckBox.isSelected();
	}

	public void actionPerformed(ActionEvent e) {
	if (e.getSource() == myPasswordButton \|\| e.getSource() == myKeyButton \|\| e.getSource() == mySshAgentButton) {
	updateFields();
	checkKeyFile();
	updateOKButton();
	}
	else {
	final String[] path = {myKeyFileText.getText()};
	VirtualFile file;
	if (path[0] != null && path[0].trim().length() > 0) {
	path[0] = "file://" + path[0].replace(File.separatorChar, '/');
	file = VirtualFileManager.getInstance().findFileByUrl(path[0]);
	}
	else {
	path[0] = "file://" + SystemProperties.getUserHome() + "/.ssh/identity";
	path[0] = path[0].replace(File.separatorChar, '/');
	file = VirtualFileManager.getInstance().findFileByUrl(path[0]);
	if (file == null \|\| !file.exists()) {
	path[0] = "file://" + SystemProperties.getUserHome() + "/.ssh";
	file = VirtualFileManager.getInstance().findFileByUrl(path[0]);
	}
	}
	FileChooserDescriptor descriptor = FileChooserDescriptorFactory.createSingleFileNoJarsDescriptor();

	descriptor.setShowFileSystemRoots(true);
	descriptor.setTitle(SvnBundle.message("dialog.title.openssh.v2.private.key"));
	descriptor.setDescription(SvnBundle.message("dialog.description.openssh.v2.private.key"));
	descriptor.setHideIgnored(false);

	final String oldValue = PropertiesComponent.getInstance().getValue("FileChooser.showHiddens");
	PropertiesComponent.getInstance().setValue("FileChooser.showHiddens", Boolean.TRUE.toString());

	FileChooser.chooseFiles(descriptor, myProject, file, new Consumer<List<VirtualFile>>() {
	@Override
	public void consume(List<VirtualFile> files) {
	PropertiesComponent.getInstance().setValue("FileChooser.showHiddens", oldValue);
	if (files.size() == 1) {
	path[0] = FileUtil.toSystemDependentName(files.get(0).getPath());
	myKeyFileText.setText(path[0]);
	}
	checkKeyFile();
	updateOKButton();
	}
	});
	}
	}

	private void checkKeyFile() {
	myKeyFileEmptyOrCorrect = true;
	setErrorText(null);

	if (! myKeyButton.isSelected()) return;
	final String text = myKeyFileText.getText();
	if (StringUtil.isEmptyOrSpaces(text)) return;
	final File file = new File(text);
	if (! file.exists()) {
	setErrorText("Private key file does not exist");
	myKeyFileEmptyOrCorrect = false;
	return;
	}
	final char[] password = myPassphraseText.getPassword();
	try {
	PEMDecoder.decode(SVNSSHPrivateKeyUtil.readPrivateKey(file), String.valueOf(password));
	}
	catch (IOException e) {
	setErrorText("Private key file is not valid. " + e.getMessage());
	myKeyFileEmptyOrCorrect = false;
	}
	}

	private void updateOKButton() {
	getOKAction().setEnabled(isOKActionEnabled());
	}

	private void updateFields() {
	myPasswordText.setEnabled(myPasswordButton.isSelected());
	myPasswordLabel.setEnabled(myPasswordButton.isSelected());

	myKeyFileText.setEnabled(myKeyButton.isSelected());
	myKeyFileLabel.setEnabled(myKeyButton.isSelected());
	myPassphraseLabel.setEnabled(myKeyButton.isSelected());
	myPassphraseText.setEnabled(myKeyButton.isSelected());
	}

	public void insertUpdate(DocumentEvent e) {
	updateOKButton();
	}

	public void removeUpdate(DocumentEvent e) {
	updateOKButton();
	}

	public void changedUpdate(DocumentEvent e) {
	updateOKButton();
	}

	@Override
	protected void doOKAction() {
	checkKeyFile();
	updateOKButton();
	if (! isOKActionEnabled()) return;
	super.doOKAction();
	}
	}