/*******************************************************************************
* Copyright (c) 2011 Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is made available under the terms of the
* Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.openshift.express.internal.ui.utils;
import java.io.File;
import java.io.FileNotFoundException;
import org.eclipse.core.runtime.Preferences;
import org.eclipse.jface.preference.PreferenceDialog;
import org.eclipse.jsch.internal.core.IConstants;
import org.eclipse.jsch.internal.core.JSchCorePlugin;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.dialogs.PreferencesUtil;
import org.jboss.tools.openshift.common.core.utils.FileUtils;
import org.jboss.tools.openshift.common.core.utils.StringUtils;
/**
* @author Andre Dietisheim
*/
public class SSHUtils {
private static final String SSH_PREFERENCE_PAGE_ID = "org.eclipse.jsch.ui.SSHPreferences";
private static final String KEYS_SEPARATOR = ",";
public static String getSSH2Home() {
return JSchCorePlugin.getPlugin().getPluginPreferences().getString(IConstants.KEY_SSH2HOME);
}
public static void setPrivateKeyPermissions(File privateKey) {
// set f permission to correspond to 'chmod 0600' read/write only for
// user
// First clear all permissions for both user and others
privateKey.setReadable(false, false);
privateKey.setWritable(false, false);
// Enable only readable for user
privateKey.setReadable(true, true);
privateKey.setWritable(true, true);
}
public static String[] getPrivateKeysFromPreferences() {
String privateKeys =
JSchCorePlugin.getPlugin().getPluginPreferences().getString(IConstants.KEY_PRIVATEKEY);
if (privateKeys != null
&& privateKeys.trim().length() > 0) {
return privateKeys.split(KEYS_SEPARATOR);
} else {
return new String[0];
}
}
public static boolean isPrivateKeyForPublicKeyKnownToSsh(String publicKeyPath) {
if (StringUtils.isEmpty(publicKeyPath)) {
return false;
}
for (String preferencesKey : getPrivateKeysFromPreferences()) {
try {
File privateKey = getKeyFile(preferencesKey);
if (privateKey == null
|| !FileUtils.canRead(privateKey)) {
continue;
}
if (publicKeyPath.startsWith(privateKey.getAbsolutePath() + ".")
|| publicKeyPath.startsWith(privateKey.getPath() + ".")) {
return true;
}
} catch (FileNotFoundException e) {
continue;
}
}
return false;
}
public static void addToPrivateKeysPreferences(File privateKey) {
Preferences preferences = JSchCorePlugin.getPlugin().getPluginPreferences();
String privateKeys = preferences.getString(IConstants.KEY_PRIVATEKEY);
String privateKeyPath = getKeyPath(privateKey);
if (privateKeys != null
&& privateKeys.trim().length() > 0) {
privateKeys = privateKeys + "," + privateKeyPath;
} else {
privateKeys = privateKeyPath;
}
preferences.setValue(IConstants.KEY_PRIVATEKEY, privateKeys);
JSchCorePlugin.getPlugin().setNeedToLoadKeys(true);
JSchCorePlugin.getPlugin().savePluginPreferences();
}
private static String getKeyPath(File privateKey) {
String ssh2Home = getSSH2Home();
if (ssh2Home == null
|| ssh2Home.isEmpty()) {
return privateKey.getAbsolutePath();
}
if (!privateKey.getAbsolutePath().startsWith(ssh2Home)) {
return privateKey.getAbsolutePath();
}
return privateKey.getName();
}
public static int openPreferencesPage(Shell shell) {
PreferenceDialog dialog = PreferencesUtil.createPreferenceDialogOn(
shell, SSH_PREFERENCE_PAGE_ID, null, null);
return dialog.open();
}
/**
* Returns <code>true</code> if the given
* @param publicKeyPath
* @return
*/
public static boolean publicKeyMatchesPrivateKeyInPreferences(File publicKey) {
for (String preferencesKey : SSHUtils.getPrivateKeysFromPreferences()) {
try {
File privateKey = getKeyFile(preferencesKey.trim());
if (privateKey == null) {
continue;
}
if (publicKey.getAbsolutePath().startsWith(privateKey.getAbsolutePath() + ".")) {
return true;
}
} catch (FileNotFoundException e) {
continue;
}
}
return false;
}
/**
* Returns the key file for a given relative or absolute keyPath. The
* keyPath may be absolute or relative to the ssh home directory.
*
* @param keyPath
* @return
* @throws FileNotFoundException
*/
public static File getKeyForRelativeOrAbsolutePath(String keyPath) throws FileNotFoundException {
if (isEmpty(keyPath)) {
return null;
}
if (keyPath.startsWith(File.separator)) {
return new File(keyPath);
} else {
return new File(getSSH2Home(), keyPath);
}
}
private static boolean isEmpty(String string) {
return string == null
|| string.isEmpty();
}
/**
* Returns the key file for the given (absolute or relative) key path.
* This methods prepends the ssh directory to the path if the given it's a
* relative one. There's no guarantee that the file returned really exists.
*
* @param keyName
* @return
* @throws FileNotFoundException
*/
public static File getKeyFile(String keyName) throws FileNotFoundException {
if (isEmpty(keyName)) {
return null;
}
if (keyName.startsWith(File.separator)) {
return new File(keyName);
} else {
return new File(getSSH2Home(), keyName);
}
}
}