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/*
* Copyright (c) 2022, 2024 Contributors to the Eclipse Foundation
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.glassfish.cluster.ssh.launcher;
import com.jcraft.jsch.ChannelExec;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.SftpException;
import com.sun.enterprise.config.serverbeans.Node;
import com.sun.enterprise.config.serverbeans.SshAuth;
import com.sun.enterprise.config.serverbeans.SshConnector;
import com.sun.enterprise.universal.process.ProcessManager;
import com.sun.enterprise.universal.process.ProcessManagerException;
import com.sun.enterprise.universal.process.ProcessUtils;
import com.sun.enterprise.util.OS;
import com.sun.enterprise.util.StringUtils;
import com.sun.enterprise.util.io.FileUtils;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.glassfish.cluster.ssh.sftp.SFTPClient;
import org.glassfish.cluster.ssh.util.SSHUtil;
import org.glassfish.hk2.api.PerLookup;
import org.glassfish.internal.api.RelativePathResolver;
import org.jvnet.hk2.annotations.Service;
/**
* @author Rajiv Mordani, Krishna Deepak
*/
@Service(name="SSHLauncher")
@PerLookup
public class SSHLauncher {
private static final String SSH_DIR_NAME = ".ssh";
private static final String AUTH_KEY_FILE = "authorized_keys";
private static final int DEFAULT_TIMEOUT_MSEC = 120000; // 2 minutes
private static final String SSH_KEYGEN = "ssh-keygen";
private static final char LINE_SEP = System.getProperty("line.separator").charAt(0);
/**
* The host name which to connect to via ssh
*/
private String host;
/**
* The port on which the ssh daemon is running
*/
private int port;
/**
* The user name to use for authenticating with the ssh daemon
*/
private String userName;
/**
* The name of private key file.
*/
private File keyFile;
/**
* The connection object that represents the connection to the host
* via ssh
*/
private Session session;
private String authType;
private String keyPassPhrase;
private String knownHostsLocation;
private Logger logger;
private String password;
// Password before it has been expanded. Used for debugging.
private String rawPassword = null;
private String rawKeyPassPhrase = null;
public void init(Logger logger) {
this.logger = logger;
}
/**
* Initialize the SSHLauncher use a Node config object
* @param node
* @param logger
*/
public void init(Node node, Logger logger) {
this.logger = logger;
int port;
String host;
SshConnector connector = node.getSshConnector();
host = connector.getSshHost();
if (SSHUtil.checkString(host) != null) {
this.host = host;
} else {
this.host = node.getNodeHost();
}
if (logger.isLoggable(Level.FINE)) {
logger.fine("Connecting to host " + host);
}
//XXX Why do we need this again? This is already done above and set to host
String sshHost = connector.getSshHost();
if (sshHost != null) {
this.host = sshHost;
}
SshAuth sshAuth = connector.getSshAuth();
String userName = null;
if (sshAuth != null) {
userName = sshAuth.getUserName();
this.keyFile = sshAuth.getKeyfile() == null ? null : new File(sshAuth.getKeyfile());
this.rawPassword = sshAuth.getPassword();
this.rawKeyPassPhrase = sshAuth.getKeyPassphrase();
}
try {
port = Integer.parseInt(connector.getSshPort());
} catch(NumberFormatException nfe) {
port = 22;
}
init(userName, this.host, port, this.rawPassword, keyFile,
this.rawKeyPassPhrase, logger);
}
/**
* Initialize the SSHLauncher using a private key file
*
* @param userName
* @param host
* @param port
* @param password
* @param keyFile
* @param keyPassPhrase
* @param logger
*/
public void init(String userName, String host, int port, String password, File keyFile, String keyPassPhrase, Logger logger) {
this.port = port == 0 ? 22 : port;
this.host = host;
this.keyFile = keyFile == null ? SSHUtil.getExistingKeyFile(): keyFile;
this.logger = logger;
this.userName = SSHUtil.checkString(userName) == null ? System.getProperty("user.name") : userName;
this.rawPassword = password;
this.password = expandPasswordAlias(password);
this.rawKeyPassPhrase = keyPassPhrase;
this.keyPassPhrase = expandPasswordAlias(keyPassPhrase);
File knownHosts = FileUtils.USER_HOME.toPath().resolve(Path.of(SSH_DIR_NAME, "known_hosts")).toFile();
if (knownHosts.exists()) {
knownHostsLocation = knownHosts.getAbsolutePath();
}
logger.log(Level.FINER, "SSH info is {0}", this);
}
private void openConnection() throws JSchException {
assert session == null;
JSch jsch = new JSch();
JSch.setLogger(new JavaSystemJschLogger(logger != null ? logger.getName() + ".ssh" : JSch.class.getName()));
// Client Auth
String message = "";
boolean triedAuthentication = false;
// Private key file is provided - Public Key Authentication
if (keyFile != null) {
if (logger.isLoggable(Level.FINER)) {
logger.finer("Specified key file is " + keyFile);
}
if (keyFile.exists()) {
triedAuthentication = true;
if (logger.isLoggable(Level.FINER)) {
logger.finer("Specified key file exists at " + keyFile);
}
jsch.addIdentity(keyFile.getAbsolutePath(), keyPassPhrase);
} else {
message = "Specified key file does not exist \n";
}
} else if (SSHUtil.checkString(password) == null) {
message += "No key or password specified - trying default keys \n";
logger.fine("keyfile and password are null. Will try to authenticate with default key file if available");
// check the default key locations if no authentication
// method is explicitly configured.
Path home = FileUtils.USER_HOME.toPath();
for (String keyName : Arrays.asList("id_rsa", "id_dsa", "identity")) {
message += "Tried to authenticate using " + keyName + "\n";
File key = home.resolve(Path.of(SSH_DIR_NAME, keyName)).toFile();
if (key.exists()) {
triedAuthentication = true;
jsch.addIdentity(key.getAbsolutePath());
}
}
}
session = jsch.getSession(userName, host, port);
session.setConfig("StrictHostKeyChecking", "no");
// Password Auth
if (SSHUtil.checkString(password) != null) {
if (logger.isLoggable(Level.FINE)) {
logger.fine("Authenticating with password " + getPrintablePassword(password));
}
triedAuthentication = true;
session.setPassword(password);
}
if (!triedAuthentication) {
if (logger.isLoggable(Level.FINE)) {
logger.fine("Could not authenticate");
}
throw new JSchException("Could not authenticate. " + message);
}
SSHUtil.register(session);
session.connect();
}
/**
* Executes a command on the remote system via ssh, optionally sending
* lines of data to the remote process's System.in.
*
* @param command the command to execute in the form of an argv style list
* @param os stream to receive the output from the command
* @param stdinLines optional data to be sent to the process's System.in
* stream; null if no input should be sent
* @return
* @throws IOException
* @throws InterruptedException
*/
public int runCommand(List command, OutputStream os,
List stdinLines) throws JSchException, IOException,
InterruptedException
{
return runCommand(commandListToQuotedString(command), os, stdinLines);
}
public int runCommand(List command, OutputStream os)
throws JSchException, IOException,
InterruptedException
{
return runCommand(command, os, null);
}
/**
* WARNING! This method does not handle paths with spaces in them.
* To use this method you must make sure all paths in the command string
* are quoted correctly. Otherwise use the methods that take command as
* a list instead.
*/
public int runCommand(String command, OutputStream os) throws JSchException, IOException,
InterruptedException
{
return runCommand(command, os, null);
}
/**
* Executes a command on the remote system via ssh, optionally sending
* lines of data to the remote process's System.in.
*
* WARNING! This method does not handle paths with spaces in them.
* To use this method you must make sure all paths in the command string
* are quoted correctly. Otherwise use the methods that take command as
* a list instead.
*
* @param command the command to execute
* @param os stream to receive the output from the command
* @param stdinLines optional data to be sent to the process's System.in stream; null if no input should be sent
* @return
* @throws IOException
* @throws InterruptedException
*/
public int runCommand(String command, OutputStream os,
List stdinLines) throws JSchException, IOException,
InterruptedException
{
command = SFTPClient.normalizePath(command);
return runCommandAsIs(command, os, stdinLines);
}
/**
* Executes a command on the remote system via ssh without normalizing
* the command line
*
* @param command the command to execute
* @param os stream to receive the output from the command
* @param stdinLines optional data to be sent to the process's System.in
* stream; null if no input should be sent
* @return
* @throws IOException
* @throws InterruptedException
**/
public int runCommandAsIs(List command, OutputStream os,
List stdinLines) throws JSchException, IOException,
InterruptedException
{
return runCommandAsIs(commandListToQuotedString(command), os, stdinLines);
}
private int runCommandAsIs(String command, OutputStream os,
List stdinLines) throws JSchException, IOException,
InterruptedException
{
if (logger.isLoggable(Level.FINER)) {
logger.finer("Running command " + command + " on host: " + this.host);
}
boolean createNewSession = false;
if (session == null) {
createNewSession = true;
}
if(createNewSession) {
openConnection();
}
int status = exec(command, os, listInputStream(stdinLines));
if(createNewSession) {
SSHUtil.unregister(session);
session = null;
}
return status;
}
/**
* To be called for after opening the connection using openConnection()
*
* @param command
* @param os
* @param is
* @return
* @throws JSchException
* @throws IOException
* @throws InterruptedException
*/
private int exec(final String command, final OutputStream os,
final InputStream is)
throws JSchException, IOException, InterruptedException {
ChannelExec execChannel = (ChannelExec) session.openChannel("exec");
try {
execChannel.setInputStream(is);
execChannel.setCommand(command);
InputStream in = execChannel.getInputStream();
execChannel.connect();
PumpThread t1 = new PumpThread(in, os);
t1.start();
PumpThread t2 = new PumpThread(execChannel.getErrStream(), os);
t2.start();
t1.join();
t2.join();
return execChannel.getExitStatus();
} finally {
execChannel.disconnect();
}
}
/**
* To be called for after opening the connection using openConnection()
*/
private int exec(final String command, final OutputStream os)
throws JSchException, IOException, InterruptedException {
return exec(command, os, null);
}
private InputStream listInputStream(final List stdinLines) throws IOException {
if (stdinLines == null) {
return null;
}
final ByteArrayOutputStream baos = new ByteArrayOutputStream();
for (String line : stdinLines) {
baos.write(line.getBytes());
baos.write(LINE_SEP);
}
return new ByteArrayInputStream(baos.toByteArray());
}
/**
* Pumps {@link InputStream} to {@link OutputStream}.
*
* @author Kohsuke Kawaguchi
*/
private static final class PumpThread extends Thread {
private final InputStream in;
private final OutputStream out;
public PumpThread(InputStream in, OutputStream out) {
super("pump thread");
this.in = in;
this.out = out;
}
@Override
public void run() {
byte[] buf = new byte[1024];
try {
while(true) {
int len = in.read(buf);
if(len<0) {
in.close();
return;
}
out.write(buf,0,len);
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
public void pingConnection() throws JSchException, InterruptedException
{
logger.fine("Pinging connection for host: " + this.host);
openConnection();
SSHUtil.unregister(session);
session = null;
}
/**
* Validate user provided args.
* Check connecton to host.
* Check that the install dir is correct
*
* @param landmarkPath must be relative to the installdir
*/
public void validate(String host, int port,
String userName, String password,
File keyFile, String keyPassPhrase,
String installDir, String landmarkPath,
Logger logger) throws IOException {
boolean validInstallDir = false;
init(userName, host, port, password, keyFile, keyPassPhrase, logger);
try {
openConnection();
logger.fine("Connection settings valid");
String testPath = installDir;
if (StringUtils.ok(testPath)) {
try (SFTPClient sftpClient = new SFTPClient(session)) {
// Validate if installDir exists
if (sftpClient.exists(testPath)) {
// installDir exists. Now check for landmark if provided
if (StringUtils.ok(landmarkPath)) {
testPath = installDir + "/" + landmarkPath;
}
validInstallDir = sftpClient.exists(testPath);
} else {
validInstallDir = false;
}
}
SSHUtil.unregister(session);
session = null;
if (!validInstallDir) {
String msg = "Invalid install directory: could not find " +
testPath + " on " + host;
throw new FileNotFoundException(msg);
}
logger.fine("Node home validated");
}
} catch (JSchException ex) {
throw new IOException(ex);
} catch (SftpException ex) {
throw new IOException(ex);
}
}
public SFTPClient getSFTPClient() throws JSchException {
openConnection();
return new SFTPClient(session);
}
public String expandPasswordAlias(String alias) {
String expandedPassword = null;
if (alias == null) {
return null;
}
try {
expandedPassword = RelativePathResolver.getRealPasswordFromAlias(alias);
} catch (Exception e) {
logger.log(Level.WARNING, "Expansion failed for {0}: {1}", new Object[] {alias, e.getMessage()});
return null;
}
return expandedPassword;
}
public boolean isPasswordAlias(String alias) {
// Check if the passed string is specified using the alias syntax
String aliasName = RelativePathResolver.getAlias(alias);
return (aliasName != null);
}
/**
* Return a version of the password that is printable.
* @param p password string
* @return printable version of password
*/
private String getPrintablePassword(String p) {
// We only display the password if it is an alias, else
// we display "".
String printable = "null";
if (p != null) {
if (isPasswordAlias(p)) {
printable = p;
} else {
printable = "";
}
}
return printable;
}
/**
* Setting up the key involves the following steps:
* -If a key exists and we can connect using the key, do nothing.
* -Generate a key pair if there isn't one
* -Connect to remote host using password auth and do the following:
* 1. create .ssh directory if it doesn't exist
* 2. copy over the key as key.tmp
* 3. Append the key to authorized_keys file
* 4. Remove the temporary key file key.tmp
* 5. Fix permissions for home, .ssh and authorized_keys
* @param node - remote host
* @param pubKeyFile - .pub file
* @param generateKey - flag to indicate if key needs to be generated or not
* @param passwd - ssh user password
* @throws IOException
* @throws InterruptedException
*/
public void setupKey(String node, String pubKeyFile, boolean generateKey, String passwd)
throws IOException, InterruptedException {
File key = keyFile;
if (logger.isLoggable(Level.FINER)) {
logger.finer("Key = " + keyFile);
}
if (key.exists()) {
if (checkConnection()) {
throw new IOException("SSH public key authentication is already configured for " + userName + "@" + node);
}
} else {
if (generateKey) {
if(!generateKeyPair()) {
throw new IOException("SSH key pair generation failed. Please generate key manually.");
}
} else {
throw new IOException("SSH key pair not present. Please generate a key pair manually or specify an existing one and re-run the command.");
}
}
//password is must for key distribution
if (passwd == null) {
throw new IOException("SSH password is required for distributing the public key. You can specify the SSH password in a password file and pass it through --passwordfile option.");
}
try {
JSch jsch = new JSch();
Session s1 = jsch.getSession(userName, host, port);
s1.setConfig("StrictHostKeyChecking", "no");
s1.setPassword(passwd);
s1.connect();
if (!s1.isConnected()) {
throw new IOException("SSH password authentication failed for user " + userName + " on host " + node);
}
try (SFTPClient sftp = new SFTPClient(s1)) {
ChannelSftp sftpChannel = sftp.getSftpChannel();
this.session = s1;
if (key.exists()) {
// fixes .ssh file mode
setupSSHDir();
if (pubKeyFile == null) {
pubKeyFile = keyFile + ".pub";
}
File pubKey = new File(pubKeyFile);
if (!pubKey.exists()) {
throw new IOException("Public key file " + pubKeyFile + " does not exist.");
}
try {
if (!sftp.exists(SSH_DIR_NAME)) {
logger.fine(SSH_DIR_NAME + " does not exist");
sftpChannel.cd(sftpChannel.getHome());
sftpChannel.mkdir(SSH_DIR_NAME);
sftpChannel.chmod(0700, SSH_DIR_NAME);
}
} catch (Exception e) {
throw new IOException("Error while creating .ssh directory on remote host: " + e.getMessage(), e);
}
// copy over the public key to remote host
// scp.put(pubKey.getAbsolutePath(), "key.tmp", ".ssh", "0600");
try {
sftpChannel.cd(SSH_DIR_NAME);
sftpChannel.put(pubKey.getAbsolutePath(), "key.tmp");
sftpChannel.chmod(0600, "key.tmp");
} catch (SftpException ex) {
throw new IOException("Unable to copy the public key", ex);
}
// append the public key file contents to authorized_keys file on remote host
String mergeCommand = "cd .ssh; cat key.tmp >> " + AUTH_KEY_FILE;
if (logger.isLoggable(Level.FINER)) {
logger.finer("mergeCommand = " + mergeCommand);
}
if (exec(mergeCommand, new ByteArrayOutputStream()) != 0) {
throw new IOException("Failed to propogate the public key " + pubKeyFile + " to " + host);
}
logger.info("Copied keyfile " + pubKeyFile + " to " + userName + "@" + host);
// remove the public key file on remote host
if (exec("rm .ssh/key.tmp", new ByteArrayOutputStream()) != 0) {
logger.warning("WARNING: Failed to remove the public key file key.tmp on remote host " + host);
}
if (logger.isLoggable(Level.FINER)) {
logger.finer("Removed the temporary key file on remote host");
}
// Lets fix all the permissions
// On MKS, chmod doesn't work as expected. StrictMode needs to be disabled
// for connection to go through
logger.info("Fixing file permissions for home(755), .ssh(700) and authorized_keys file(644)");
try {
sftpChannel.cd(sftpChannel.getHome());
sftpChannel.chmod(0755, ".");
sftpChannel.chmod(0700, SSH_DIR_NAME);
sftpChannel.chmod(0644, SSH_DIR_NAME + "/" + AUTH_KEY_FILE);
} catch (SftpException ex) {
throw new IOException("Unable to fix file permissions", ex);
}
}
}
} catch (JSchException ex) {
throw new IOException(ex);
}
}
public static byte[] toByteArray(InputStream input) throws IOException {
ByteArrayOutputStream output = new ByteArrayOutputStream();
byte[] buf = new byte[4096];
int len;
while ((len = input.read(buf)) >= 0) {
output.write(buf, 0, len);
}
byte[] o = output.toByteArray();
output.close();
return o;
}
/**
* Check if we can authenticate using public key auth
* @return true|false
*/
public boolean checkConnection() {
boolean status = false;
JSch jsch = new JSch();
Session sess = null;
try {
logger.finer("Checking connection...");
jsch.addIdentity(keyFile.getAbsolutePath(), rawKeyPassPhrase);
sess = jsch.getSession(userName, host, port);
sess.setConfig("StrictHostKeyChecking", "no");
sess.connect();
status = sess.isConnected();
if (status) {
logger.info("Successfully connected to " + userName + "@" + host + " using keyfile " + keyFile);
}
}
catch (JSchException ex) {
Throwable t = ex.getCause();
if (t != null) {
String msg = t.getMessage();
logger.warning("Failed to connect or authenticate: " + msg);
}
if (logger.isLoggable(Level.FINER)) {
logger.log(Level.FINER, "Failed to connect or autheticate: ", ex);
}
} finally {
if (sess != null) {
sess.disconnect();
}
}
return status;
}
/**
* Check if we can connect using password auth
* @return true|false
*/
public boolean checkPasswordAuth() {
boolean status = false;
JSch jsch = new JSch();
Session sess = null;
try {
if(logger.isLoggable(Level.FINER)) {
logger.finer("Checking connection...");
}
sess = jsch.getSession(userName, host, port);
sess.setConfig("StrictHostKeyChecking", "no");
sess.setPassword(password);
sess.connect();
status = sess.isConnected();
if (status) {
if (logger.isLoggable(Level.FINER)) {
logger.finer("Successfully connected to " + userName + "@" + host + " using password authentication");
}
}
}
catch (JSchException ex) {
Throwable t = ex.getCause();
if (t != null) {
String msg = t.getMessage();
logger.warning("Failed to connect or authenticate: " + msg);
}
if (logger.isLoggable(Level.FINER)) {
logger.log(Level.FINER, "Failed to connect or autheticate: ", ex);
}
} finally {
if (sess != null) {
sess.disconnect();
}
}
return status;
}
/**
* Invoke ssh-keygen using ProcessManager API
*/
private boolean generateKeyPair() throws IOException {
String keygenCmd = findSSHKeygen();
if(logger.isLoggable(Level.FINER)) {
logger.finer("Using " + keygenCmd + " to generate key pair");
}
if (!setupSSHDir()) {
throw new IOException("Failed to set proper permissions on .ssh directory");
}
StringBuffer k = new StringBuffer();
List cmdLine = new ArrayList<>();
cmdLine.add(keygenCmd);
k.append(keygenCmd);
cmdLine.add("-t");
k.append(" ").append("-t");
cmdLine.add("rsa");
k.append(" ").append("rsa");
cmdLine.add("-N");
k.append(" ").append("-N");
if (rawKeyPassPhrase != null && rawKeyPassPhrase.length() > 0) {
cmdLine.add(rawKeyPassPhrase);
k.append(" ").append(getPrintablePassword(rawKeyPassPhrase));
} else {
//special handling for empty passphrase on Windows
if(OS.isWindows()) {
cmdLine.add("\"\"");
k.append(" ").append("\"\"");
} else {
cmdLine.add("");
k.append(" ").append("");
}
}
cmdLine.add("-f");
k.append(" ").append("-f");
cmdLine.add(keyFile.getAbsolutePath());
k.append(" ").append(keyFile);
//cmdLine.add("-vvv");
ProcessManager pm = new ProcessManager(cmdLine);
if(logger.isLoggable(Level.FINER)) {
logger.finer("Command = " + k);
}
pm.setTimeoutMsec(DEFAULT_TIMEOUT_MSEC);
if (logger.isLoggable(Level.FINER)) {
pm.setEcho(true);
} else {
pm.setEcho(false);
}
int exit;
try {
exit = pm.execute();
}
catch (ProcessManagerException ex) {
if (logger.isLoggable(Level.FINE)) {
logger.fine("Error while executing ssh-keygen: " + ex.getMessage());
}
exit = 1;
}
if (exit == 0){
logger.info(keygenCmd + " successfully generated the identification " + keyFile);
} else {
if(logger.isLoggable(Level.FINER)) {
logger.finer(pm.getStderr());
}
logger.info(keygenCmd + " failed");
}
return (exit == 0) ? true : false;
}
/**
* Method to locate ssh-keygen. If found in path, return the same or else look
* for it in a pre defined list of search paths.
* @return ssh-keygen command
*/
private String findSSHKeygen() {
List paths = new ArrayList<>(Arrays.asList(
"/usr/bin/",
"/usr/local/bin/"));
if (OS.isWindows()) {
paths.add("C:/cygwin/bin/");
//Windows MKS Toolkit install path
String mks = System.getenv("ROOTDIR");
if (mks != null) {
paths.add(mks + "/bin/");
}
}
if (logger.isLoggable(Level.FINER)) {
logger.finer("Paths = " + paths);
}
File exe = ProcessUtils.getExe(SSH_KEYGEN);
if( exe != null){
return exe.getPath();
}
for (String s :paths) {
File f = new File(s + SSH_KEYGEN);
if (f.canExecute()) {
return f.getAbsolutePath();
}
}
return SSH_KEYGEN;
}
/**
* Create .ssh directory and set the permissions correctly
*/
private boolean setupSSHDir() throws IOException {
boolean ret = true;
File f = new File(FileUtils.USER_HOME, SSH_DIR_NAME);
if (!FileUtils.safeIsDirectory(f)) {
if (!f.mkdirs()) {
throw new IOException("Failed to create " + f.getPath());
}
logger.log(Level.INFO, "Created directory {0}", f);
}
if (!f.setReadable(false, false) || !f.setReadable(true)) {
ret = false;
}
if (!f.setWritable(false,false) || !f.setWritable(true)) {
ret = false;
}
if (!f.setExecutable(false, false) || !f.setExecutable(true)) {
ret = false;
}
logger.finer("Fixed the .ssh directory permissions to 0700");
return ret;
}
@Override
public String toString() {
String displayPassword = getPrintablePassword(rawPassword);
String displayKeyPassPhrase = getPrintablePassword(rawKeyPassPhrase);
return String.format("host=%s port=%d user=%s password=%s keyFile=%s keyPassPhrase=%s authType=%s knownHostFile=%s",
host, port, userName, displayPassword, keyFile,
displayKeyPassPhrase, authType, knownHostsLocation);
}
/**
* Take a command in the form of a list and convert it to a command string.
* If any string in the list has spaces then the string is quoted before
* being added to the final command string.
*
* @param command
* @return
*/
private static String commandListToQuotedString(List command) {
if(command.size()==1) {
return command.get(0);
}
StringBuilder commandBuilder = new StringBuilder();
boolean first = true;
for (String s : command) {
if (!first) {
commandBuilder.append(" ");
} else {
first = false;
}
if (s.contains(" ")) {
// Quote parts of the command that contain a space
commandBuilder.append(FileUtils.quoteString(s));
} else {
commandBuilder.append(s);
}
}
return commandBuilder.toString();
}
}
