com.sonyericsson.hudson.plugins.gerrit.gerritevents.ssh.SshUtil Maven / Gradle / Ivy
/*
* The MIT License
*
* Copyright 2010 Sony Ericsson Mobile Communications.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.sonyericsson.hudson.plugins.gerrit.gerritevents.ssh;
import com.sshtools.j2ssh.transport.publickey.InvalidSshKeyException;
import com.sshtools.j2ssh.transport.publickey.SshPrivateKeyFile;
import java.io.File;
/**
* Base util for connecting, authenticating and doing stuff on an ssh client->server connection.
* @author Robert Sandell [email protected]
*/
public final class SshUtil {
/**
* Default hidden constructor.
*/
private SshUtil() {
}
/**
* Does a series of checks in the file to see if it is a valid private key file.
* @param keyFile the file
* @return true if valid.
*/
public static boolean isPrivateKeyFileValid(File keyFile) {
return parsePrivateKeyFile(keyFile) != null;
}
/**
* Parses the keyFile hiding any Exceptions that might occur.
* @param keyFile the file.
* @return the "parsed" file.
*/
private static SshPrivateKeyFile parsePrivateKeyFile(File keyFile) {
try {
return SshPrivateKeyFile.parse(keyFile);
} catch (Exception ex) {
return null;
}
}
/**
* Checks to see if the passPhrase is valid for the private key file.
* @param keyFilePath the private key file.
* @param passPhrase the password for the file.
* @return true if it is valid.
*/
public static boolean checkPassPhrase(File keyFilePath, String passPhrase) {
SshPrivateKeyFile keyFile = parsePrivateKeyFile(keyFilePath);
if (keyFile != null) {
try {
keyFile.toPrivateKey(passPhrase);
} catch (InvalidSshKeyException e) {
return false;
}
return true;
} else {
return false;
}
}
}