<?php
/**
 * Akeeba Kickstart
 *
 * An archive extraction script for ZIP, JPA and JPS archives.
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 */

/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/*
    Akeeba Kickstart - The server-side archive extraction wizard
    Copyright (C) 2008-2017  Nicholas K. Dionysopoulos / AkeebaBackup.com

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

define('KICKSTART', 1);
define('VERSION', '5.3.1');
define('KICKSTARTPRO', '0');
// Uncomment the following line to enable Kickstart's debug mode
//define('KSDEBUG', 1);

// Used during development
if (!defined('KSDEBUG') && isset($_SERVER) && isset($_SERVER['HTTP_HOST']) && (strpos($_SERVER['HTTP_HOST'], 'local.web') !== false))
{
	define('KSDEBUG', 1);
}

define('KSWINDOWS', substr(PHP_OS, 0, 3) == 'WIN');

if (!defined('KSROOTDIR'))
{
	define('KSROOTDIR', dirname(__FILE__));
}

if (defined('KSDEBUG'))
{
	ini_set('error_log', KSROOTDIR . '/kickstart_error_log');
	if (file_exists(KSROOTDIR . '/kickstart_error_log'))
	{
		@unlink(KSROOTDIR . '/kickstart_error_log');
	}
	error_reporting(E_ALL | E_STRICT);
}
else
{
	@error_reporting(E_NONE);
}

// ==========================================================================================
// IIS missing REQUEST_URI workaround
// ==========================================================================================

/*
 * Based REQUEST_URI for IIS Servers 1.0 by NeoSmart Technologies
 * The proper method to solve IIS problems is to take a look at this:
 * http://neosmart.net/dl.php?id=7
 */

//This file should be located in the same directory as php.exe or php5isapi.dll

if (!isset($_SERVER['REQUEST_URI']))
{
	if (isset($_SERVER['HTTP_REQUEST_URI']))
	{
		$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_REQUEST_URI'];
		//Good to go!
	}
	else
	{
		//Someone didn't follow the instructions!
		if (isset($_SERVER['SCRIPT_NAME']))
		{
			$_SERVER['HTTP_REQUEST_URI'] = $_SERVER['SCRIPT_NAME'];
		}
		else
		{
			$_SERVER['HTTP_REQUEST_URI'] = $_SERVER['PHP_SELF'];
		}
		if ($_SERVER['QUERY_STRING'])
		{
			$_SERVER['HTTP_REQUEST_URI'] .= '?' . $_SERVER['QUERY_STRING'];
		}
		//WARNING: This is a workaround!
		//For guaranteed compatibility, HTTP_REQUEST_URI *MUST* be defined!
		//See product documentation for instructions!
		$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_REQUEST_URI'];
	}
}

// Define the cacert.pem location, if it exists
$cacertpem = KSROOTDIR . '/cacert.pem';
if (is_file($cacertpem))
{
	if (is_readable($cacertpem))
	{
		define('AKEEBA_CACERT_PEM', $cacertpem);
	}
}
unset($cacertpem);

// Loads other PHP files containing extra Kickstart features
$dh = @opendir(KSROOTDIR);
if ($dh === false)
{
	return;
}
while ($filename = readdir($dh))
{
	if (in_array($filename, array('.', '..')))
	{
		continue;
	}
	if (!is_file($filename))
	{
		continue;
	}
	if (substr($filename, 0, 10) != 'kickstart.')
	{
		continue;
	}
	if (substr($filename, -4) != '.php')
	{
		continue;
	}
	if ($filename == 'kickstart.php')
	{
		continue;
	}
	if (function_exists('opcache_invalidate'))
	{
		opcache_invalidate($filename);
	}
	if (function_exists('apc_compile_file'))
	{
		apc_compile_file($filename);
	}
	if (function_exists('wincache_refresh_if_changed'))
	{
		wincache_refresh_if_changed(array($filename));
	}
	if (function_exists('xcache_asm'))
	{
		xcache_asm($filename);
	}
	include_once $filename;
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

define('_AKEEBA_RESTORATION', 1);
defined('DS') or define('DS', DIRECTORY_SEPARATOR);

// Unarchiver run states
define('AK_STATE_NOFILE', 0); // File header not read yet
define('AK_STATE_HEADER', 1); // File header read; ready to process data
define('AK_STATE_DATA', 2); // Processing file data
define('AK_STATE_DATAREAD', 3); // Finished processing file data; ready to post-process
define('AK_STATE_POSTPROC', 4); // Post-processing
define('AK_STATE_DONE', 5); // Done with post-processing

/* Windows system detection */
if (!defined('_AKEEBA_IS_WINDOWS'))
{
	if (function_exists('php_uname'))
	{
		define('_AKEEBA_IS_WINDOWS', stristr(php_uname(), 'windows'));
	}
	else
	{
		define('_AKEEBA_IS_WINDOWS', DIRECTORY_SEPARATOR == '\\');
	}
}

// Get the file's root
if (!defined('KSROOTDIR'))
{
	define('KSROOTDIR', dirname(__FILE__));
}
if (!defined('KSLANGDIR'))
{
	define('KSLANGDIR', KSROOTDIR);
}

// Make sure the locale is correct for basename() to work
if (function_exists('setlocale'))
{
	@setlocale(LC_ALL, 'en_US.UTF8');
}

// fnmatch not available on non-POSIX systems
// Thanks to soywiz@php.net for this usefull alternative function [http://gr2.php.net/fnmatch]
if (!function_exists('fnmatch'))
{
	function fnmatch($pattern, $string)
	{
		return @preg_match(
			'/^' . strtr(addcslashes($pattern, '/\\.+^$(){}=!<>|'),
				array('*' => '.*', '?' => '.?')) . '$/i', $string
		);
	}
}

// Unicode-safe binary data length function
if (!function_exists('akstringlen'))
{
	if (function_exists('mb_strlen'))
	{
		function akstringlen($string)
		{
			return mb_strlen($string, '8bit');
		}
	}
	else
	{
		function akstringlen($string)
		{
			return strlen($string);
		}
	}
}

if (!function_exists('aksubstr'))
{
	if (function_exists('mb_strlen'))
	{
		function aksubstr($string, $start, $length = null)
		{
			return mb_substr($string, $start, $length, '8bit');
		}
	}
	else
	{
		function aksubstr($string, $start, $length = null)
		{
			return substr($string, $start, $length);
		}
	}
}

/**
 * Gets a query parameter from GET or POST data
 *
 * @param $key
 * @param $default
 */
function getQueryParam($key, $default = null)
{
	$value = $default;

	if (array_key_exists($key, $_REQUEST))
	{
		$value = $_REQUEST[$key];
	}

	if (get_magic_quotes_gpc() && !is_null($value))
	{
		$value = stripslashes($value);
	}

	return $value;
}

// Debugging function
function debugMsg($msg)
{
	if (!defined('KSDEBUG'))
	{
		return;
	}

	$fp = fopen('debug.txt', 'at');

	fwrite($fp, $msg . "\n");
	fclose($fp);

	// Echo to stdout if KSDEBUGCLI is defined
	if (defined('KSDEBUGCLI'))
	{
		echo $msg . "\n";
	}
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * The base class of Akeeba Engine objects. Allows for error and warnings logging
 * and propagation. Largely based on the Joomla! 1.5 JObject class.
 */
abstract class AKAbstractObject
{
	/** @var    array    The queue size of the $_errors array. Set to 0 for infinite size. */
	protected $_errors_queue_size = 0;
	/** @var    array    The queue size of the $_warnings array. Set to 0 for infinite size. */
	protected $_warnings_queue_size = 0;
	/** @var    array    An array of errors */
	private $_errors = array();
	/** @var    array    An array of warnings */
	private $_warnings = array();

	/**
	 * Public constructor, makes sure we are instanciated only by the factory class
	 */
	public function __construct()
	{
		/*
		// Assisted Singleton pattern
		if(function_exists('debug_backtrace'))
		{
			$caller=debug_backtrace();
			if(
				($caller[1]['class'] != 'AKFactory') &&
				($caller[2]['class'] != 'AKFactory') &&
				($caller[3]['class'] != 'AKFactory') &&
				($caller[4]['class'] != 'AKFactory')
			) {
				var_dump(debug_backtrace());
				trigger_error("You can't create direct descendants of ".__CLASS__, E_USER_ERROR);
			}
		}
		*/
	}

	/**
	 * Get the most recent error message
	 *
	 * @param    integer $i Optional error index
	 *
	 * @return    string    Error message
	 */
	public function getError($i = null)
	{
		return $this->getItemFromArray($this->_errors, $i);
	}

	/**
	 * Returns the last item of a LIFO string message queue, or a specific item
	 * if so specified.
	 *
	 * @param array $array An array of strings, holding messages
	 * @param int   $i     Optional message index
	 *
	 * @return mixed The message string, or false if the key doesn't exist
	 */
	private function getItemFromArray($array, $i = null)
	{
		// Find the item
		if ($i === null)
		{
			// Default, return the last item
			$item = end($array);
		}
		else if (!array_key_exists($i, $array))
		{
			// If $i has been specified but does not exist, return false
			return false;
		}
		else
		{
			$item = $array[$i];
		}

		return $item;
	}

	/**
	 * Return all errors, if any
	 *
	 * @return    array    Array of error messages
	 */
	public function getErrors()
	{
		return $this->_errors;
	}

	/**
	 * Resets all error messages
	 */
	public function resetErrors()
	{
		$this->_errors = array();
	}

	/**
	 * Get the most recent warning message
	 *
	 * @param    integer $i Optional warning index
	 *
	 * @return    string    Error message
	 */
	public function getWarning($i = null)
	{
		return $this->getItemFromArray($this->_warnings, $i);
	}

	/**
	 * Return all warnings, if any
	 *
	 * @return    array    Array of error messages
	 */
	public function getWarnings()
	{
		return $this->_warnings;
	}

	/**
	 * Resets all warning messages
	 */
	public function resetWarnings()
	{
		$this->_warnings = array();
	}

	/**
	 * Propagates errors and warnings to a foreign object. The foreign object SHOULD
	 * implement the setError() and/or setWarning() methods but DOESN'T HAVE TO be of
	 * AKAbstractObject type. For example, this can even be used to propagate to a
	 * JObject instance in Joomla!. Propagated items will be removed from ourself.
	 *
	 * @param object $object The object to propagate errors and warnings to.
	 */
	public function propagateToObject(&$object)
	{
		// Skip non-objects
		if (!is_object($object))
		{
			return;
		}

		if (method_exists($object, 'setError'))
		{
			if (!empty($this->_errors))
			{
				foreach ($this->_errors as $error)
				{
					$object->setError($error);
				}
				$this->_errors = array();
			}
		}

		if (method_exists($object, 'setWarning'))
		{
			if (!empty($this->_warnings))
			{
				foreach ($this->_warnings as $warning)
				{
					$object->setWarning($warning);
				}
				$this->_warnings = array();
			}
		}
	}

	/**
	 * Propagates errors and warnings from a foreign object. Each propagated list is
	 * then cleared on the foreign object, as long as it implements resetErrors() and/or
	 * resetWarnings() methods.
	 *
	 * @param object $object The object to propagate errors and warnings from
	 */
	public function propagateFromObject(&$object)
	{
		if (method_exists($object, 'getErrors'))
		{
			$errors = $object->getErrors();
			if (!empty($errors))
			{
				foreach ($errors as $error)
				{
					$this->setError($error);
				}
			}
			if (method_exists($object, 'resetErrors'))
			{
				$object->resetErrors();
			}
		}

		if (method_exists($object, 'getWarnings'))
		{
			$warnings = $object->getWarnings();
			if (!empty($warnings))
			{
				foreach ($warnings as $warning)
				{
					$this->setWarning($warning);
				}
			}
			if (method_exists($object, 'resetWarnings'))
			{
				$object->resetWarnings();
			}
		}
	}

	/**
	 * Add an error message
	 *
	 * @param    string $error Error message
	 */
	public function setError($error)
	{
		if ($this->_errors_queue_size > 0)
		{
			if (count($this->_errors) >= $this->_errors_queue_size)
			{
				array_shift($this->_errors);
			}
		}
		array_push($this->_errors, $error);
	}

	/**
	 * Add an error message
	 *
	 * @param    string $error Error message
	 */
	public function setWarning($warning)
	{
		if ($this->_warnings_queue_size > 0)
		{
			if (count($this->_warnings) >= $this->_warnings_queue_size)
			{
				array_shift($this->_warnings);
			}
		}

		array_push($this->_warnings, $warning);
	}

	/**
	 * Sets the size of the error queue (acts like a LIFO buffer)
	 *
	 * @param int $newSize The new queue size. Set to 0 for infinite length.
	 */
	protected function setErrorsQueueSize($newSize = 0)
	{
		$this->_errors_queue_size = (int) $newSize;
	}

	/**
	 * Sets the size of the warnings queue (acts like a LIFO buffer)
	 *
	 * @param int $newSize The new queue size. Set to 0 for infinite length.
	 */
	protected function setWarningsQueueSize($newSize = 0)
	{
		$this->_warnings_queue_size = (int) $newSize;
	}

}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * The superclass of all Akeeba Kickstart parts. The "parts" are intelligent stateful
 * classes which perform a single procedure and have preparation, running and
 * finalization phases. The transition between phases is handled automatically by
 * this superclass' tick() final public method, which should be the ONLY public API
 * exposed to the rest of the Akeeba Engine.
 */
abstract class AKAbstractPart extends AKAbstractObject
{
	/**
	 * Indicates whether this part has finished its initialisation cycle
	 *
	 * @var boolean
	 */
	protected $isPrepared = false;

	/**
	 * Indicates whether this part has more work to do (it's in running state)
	 *
	 * @var boolean
	 */
	protected $isRunning = false;

	/**
	 * Indicates whether this part has finished its finalization cycle
	 *
	 * @var boolean
	 */
	protected $isFinished = false;

	/**
	 * Indicates whether this part has finished its run cycle
	 *
	 * @var boolean
	 */
	protected $hasRan = false;

	/**
	 * The name of the engine part (a.k.a. Domain), used in return table
	 * generation.
	 *
	 * @var string
	 */
	protected $active_domain = "";

	/**
	 * The step this engine part is in. Used verbatim in return table and
	 * should be set by the code in the _run() method.
	 *
	 * @var string
	 */
	protected $active_step = "";

	/**
	 * A more detailed description of the step this engine part is in. Used
	 * verbatim in return table and should be set by the code in the _run()
	 * method.
	 *
	 * @var string
	 */
	protected $active_substep = "";

	/**
	 * Any configuration variables, in the form of an array.
	 *
	 * @var array
	 */
	protected $_parametersArray = array();

	/** @var string The database root key */
	protected $databaseRoot = array();
	/** @var array An array of observers */
	protected $observers = array();
	/** @var int Last reported warnings's position in array */
	private $warnings_pointer = -1;

	/**
	 * The public interface to an engine part. This method takes care for
	 * calling the correct method in order to perform the initialisation -
	 * run - finalisation cycle of operation and return a proper reponse array.
	 *
	 * @return    array    A Reponse Array
	 */
	final public function tick()
	{
		// Call the right action method, depending on engine part state
		switch ($this->getState())
		{
			case "init":
				$this->_prepare();
				break;
			case "prepared":
				$this->_run();
				break;
			case "running":
				$this->_run();
				break;
			case "postrun":
				$this->_finalize();
				break;
		}

		// Send a Return Table back to the caller
		$out = $this->_makeReturnTable();

		return $out;
	}

	/**
	 * Returns the state of this engine part.
	 *
	 * @return string The state of this engine part. It can be one of
	 * error, init, prepared, running, postrun, finished.
	 */
	final public function getState()
	{
		if ($this->getError())
		{
			return "error";
		}

		if (!($this->isPrepared))
		{
			return "init";
		}

		if (!($this->isFinished) && !($this->isRunning) && !($this->hasRun) && ($this->isPrepared))
		{
			return "prepared";
		}

		if (!($this->isFinished) && $this->isRunning && !($this->hasRun))
		{
			return "running";
		}

		if (!($this->isFinished) && !($this->isRunning) && $this->hasRun)
		{
			return "postrun";
		}

		if ($this->isFinished)
		{
			return "finished";
		}
	}

	/**
	 * Runs the preparation for this part. Should set _isPrepared
	 * to true
	 */
	abstract protected function _prepare();

	/**
	 * Runs the main functionality loop for this part. Upon calling,
	 * should set the _isRunning to true. When it finished, should set
	 * the _hasRan to true. If an error is encountered, setError should
	 * be used.
	 */
	abstract protected function _run();

	/**
	 * Runs the finalisation process for this part. Should set
	 * _isFinished to true.
	 */
	abstract protected function _finalize();

	/**
	 * Constructs a Response Array based on the engine part's state.
	 *
	 * @return array The Response Array for the current state
	 */
	final protected function _makeReturnTable()
	{
		// Get a list of warnings
		$warnings = $this->getWarnings();
		// Report only new warnings if there is no warnings queue size
		if ($this->_warnings_queue_size == 0)
		{
			if (($this->warnings_pointer > 0) && ($this->warnings_pointer < (count($warnings))))
			{
				$warnings = array_slice($warnings, $this->warnings_pointer + 1);
				$this->warnings_pointer += count($warnings);
			}
			else
			{
				$this->warnings_pointer = count($warnings);
			}
		}

		$out = array(
			'HasRun'   => (!($this->isFinished)),
			'Domain'   => $this->active_domain,
			'Step'     => $this->active_step,
			'Substep'  => $this->active_substep,
			'Error'    => $this->getError(),
			'Warnings' => $warnings
		);

		return $out;
	}

	/**
	 * Returns a copy of the class's status array
	 *
	 * @return array
	 */
	public function getStatusArray()
	{
		return $this->_makeReturnTable();
	}

	/**
	 * Sends any kind of setup information to the engine part. Using this,
	 * we avoid passing parameters to the constructor of the class. These
	 * parameters should be passed as an indexed array and should be taken
	 * into account during the preparation process only. This function will
	 * set the error flag if it's called after the engine part is prepared.
	 *
	 * @param array $parametersArray The parameters to be passed to the
	 *                               engine part.
	 */
	final public function setup($parametersArray)
	{
		if ($this->isPrepared)
		{
			$this->setState('error', "Can't modify configuration after the preparation of " . $this->active_domain);
		}
		else
		{
			$this->_parametersArray = $parametersArray;
			if (array_key_exists('root', $parametersArray))
			{
				$this->databaseRoot = $parametersArray['root'];
			}
		}
	}

	/**
	 * Sets the engine part's internal state, in an easy to use manner
	 *
	 * @param    string $state        One of init, prepared, running, postrun, finished, error
	 * @param    string $errorMessage The reported error message, should the state be set to error
	 */
	protected function setState($state = 'init', $errorMessage = 'Invalid setState argument')
	{
		switch ($state)
		{
			case 'init':
				$this->isPrepared = false;
				$this->isRunning  = false;
				$this->isFinished = false;
				$this->hasRun     = false;
				break;

			case 'prepared':
				$this->isPrepared = true;
				$this->isRunning  = false;
				$this->isFinished = false;
				$this->hasRun     = false;
				break;

			case 'running':
				$this->isPrepared = true;
				$this->isRunning  = true;
				$this->isFinished = false;
				$this->hasRun     = false;
				break;

			case 'postrun':
				$this->isPrepared = true;
				$this->isRunning  = false;
				$this->isFinished = false;
				$this->hasRun     = true;
				break;

			case 'finished':
				$this->isPrepared = true;
				$this->isRunning  = false;
				$this->isFinished = true;
				$this->hasRun     = false;
				break;

			case 'error':
			default:
				$this->setError($errorMessage);
				break;
		}
	}

	final public function getDomain()
	{
		return $this->active_domain;
	}

	final public function getStep()
	{
		return $this->active_step;
	}

	final public function getSubstep()
	{
		return $this->active_substep;
	}

	/**
	 * Attaches an observer object
	 *
	 * @param AKAbstractPartObserver $obs
	 */
	function attach(AKAbstractPartObserver $obs)
	{
		$this->observers["$obs"] = $obs;
	}

	/**
	 * Dettaches an observer object
	 *
	 * @param AKAbstractPartObserver $obs
	 */
	function detach(AKAbstractPartObserver $obs)
	{
		delete($this->observers["$obs"]);
	}

	/**
	 * Sets the BREAKFLAG, which instructs this engine part that the current step must break immediately,
	 * in fear of timing out.
	 */
	protected function setBreakFlag()
	{
		AKFactory::set('volatile.breakflag', true);
	}

	final protected function setDomain($new_domain)
	{
		$this->active_domain = $new_domain;
	}

	final protected function setStep($new_step)
	{
		$this->active_step = $new_step;
	}

	final protected function setSubstep($new_substep)
	{
		$this->active_substep = $new_substep;
	}

	/**
	 * Notifies observers each time something interesting happened to the part
	 *
	 * @param mixed $message The event object
	 */
	protected function notify($message)
	{
		foreach ($this->observers as $obs)
		{
			$obs->update($this, $message);
		}
	}
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * The base class of unarchiver classes
 */
abstract class AKAbstractUnarchiver extends AKAbstractPart
{
	/** @var array List of the names of all archive parts */
	public $archiveList = array();
	/** @var int The total size of all archive parts */
	public $totalSize = array();
	/** @var array Which files to rename */
	public $renameFiles = array();
	/** @var array Which directories to rename */
	public $renameDirs = array();
	/** @var array Which files to skip */
	public $skipFiles = array();
	/** @var string Archive filename */
	protected $filename = null;
	/** @var integer Current archive part number */
	protected $currentPartNumber = -1;
	/** @var integer The offset inside the current part */
	protected $currentPartOffset = 0;
	/** @var bool Should I restore permissions? */
	protected $flagRestorePermissions = false;
	/** @var AKAbstractPostproc Post processing class */
	protected $postProcEngine = null;
	/** @var string Absolute path to prepend to extracted files */
	protected $addPath = '';
	/** @var string Absolute path to remove from extracted files */
	protected $removePath = '';
	/** @var integer Chunk size for processing */
	protected $chunkSize = 524288;

	/** @var resource File pointer to the current archive part file */
	protected $fp = null;

	/** @var int Run state when processing the current archive file */
	protected $runState = null;

	/** @var stdClass File header data, as read by the readFileHeader() method */
	protected $fileHeader = null;

	/** @var int How much of the uncompressed data we've read so far */
	protected $dataReadLength = 0;

	/** @var array Unwriteable files in these directories are always ignored and do not cause errors when not extracted */
	protected $ignoreDirectories = array();

	/**
	 * Public constructor
	 */
	public function __construct()
	{
		parent::__construct();
	}

	/**
	 * Wakeup function, called whenever the class is unserialized
	 */
	public function __wakeup()
	{
		if ($this->currentPartNumber >= 0)
		{
			$this->fp = @fopen($this->archiveList[$this->currentPartNumber], 'rb');
			if ((is_resource($this->fp)) && ($this->currentPartOffset > 0))
			{
				@fseek($this->fp, $this->currentPartOffset);
			}
		}
	}

	/**
	 * Sleep function, called whenever the class is serialized
	 */
	public function shutdown()
	{
		if (is_resource($this->fp))
		{
			$this->currentPartOffset = @ftell($this->fp);
			@fclose($this->fp);
		}
	}

	/**
	 * Is this file or directory contained in a directory we've decided to ignore
	 * write errors for? This is useful to let the extraction work despite write
	 * errors in the log, logs and tmp directories which MIGHT be used by the system
	 * on some low quality hosts and Plesk-powered hosts.
	 *
	 * @param   string $shortFilename The relative path of the file/directory in the package
	 *
	 * @return  boolean  True if it belongs in an ignored directory
	 */
	public function isIgnoredDirectory($shortFilename)
	{
		// return false;

		if (substr($shortFilename, -1) == '/')
		{
			$check = rtrim($shortFilename, '/');
		}
		else
		{
			$check = dirname($shortFilename);
		}

		return in_array($check, $this->ignoreDirectories);
	}

	/**
	 * Implements the abstract _prepare() method
	 */
	final protected function _prepare()
	{
		parent::__construct();

		if (count($this->_parametersArray) > 0)
		{
			foreach ($this->_parametersArray as $key => $value)
			{
				switch ($key)
				{
					// Archive's absolute filename
					case 'filename':
						$this->filename = $value;

						// Sanity check
						if (!empty($value))
						{
							$value = strtolower($value);

							if (strlen($value) > 6)
							{
								if (
									(substr($value, 0, 7) == 'http://')
									|| (substr($value, 0, 8) == 'https://')
									|| (substr($value, 0, 6) == 'ftp://')
									|| (substr($value, 0, 7) == 'ssh2://')
									|| (substr($value, 0, 6) == 'ssl://')
								)
								{
									$this->setState('error', 'Invalid archive location');
								}
							}
						}


						break;

					// Should I restore permissions?
					case 'restore_permissions':
						$this->flagRestorePermissions = $value;
						break;

					// Should I use FTP?
					case 'post_proc':
						$this->postProcEngine = AKFactory::getpostProc($value);
						break;

					// Path to add in the beginning
					case 'add_path':
						$this->addPath = $value;
						$this->addPath = str_replace('\\', '/', $this->addPath);
						$this->addPath = rtrim($this->addPath, '/');
						if (!empty($this->addPath))
						{
							$this->addPath .= '/';
						}
						break;

					// Path to remove from the beginning
					case 'remove_path':
						$this->removePath = $value;
						$this->removePath = str_replace('\\', '/', $this->removePath);
						$this->removePath = rtrim($this->removePath, '/');
						if (!empty($this->removePath))
						{
							$this->removePath .= '/';
						}
						break;

					// Which files to rename (hash array)
					case 'rename_files':
						$this->renameFiles = $value;
						break;

					// Which files to rename (hash array)
					case 'rename_dirs':
						$this->renameDirs = $value;
						break;

					// Which files to skip (indexed array)
					case 'skip_files':
						$this->skipFiles = $value;
						break;

					// Which directories to ignore when we can't write files in them (indexed array)
					case 'ignoredirectories':
						$this->ignoreDirectories = $value;
						break;
				}
			}
		}

		$this->scanArchives();

		$this->readArchiveHeader();
		$errMessage = $this->getError();
		if (!empty($errMessage))
		{
			$this->setState('error', $errMessage);
		}
		else
		{
			$this->runState = AK_STATE_NOFILE;
			$this->setState('prepared');
		}
	}

	/**
	 * Scans for archive parts
	 */
	private function scanArchives()
	{
		if (defined('KSDEBUG'))
		{
			@unlink('debug.txt');
		}
		debugMsg('Preparing to scan archives');

		$privateArchiveList = array();

		// Get the components of the archive filename
		$dirname         = dirname($this->filename);
		$base_extension  = $this->getBaseExtension();
		$basename        = basename($this->filename, $base_extension);
		$this->totalSize = 0;

		// Scan for multiple parts until we don't find any more of them
		$count             = 0;
		$found             = true;
		$this->archiveList = array();
		while ($found)
		{
			++$count;
			$extension = substr($base_extension, 0, 2) . sprintf('%02d', $count);
			$filename  = $dirname . DIRECTORY_SEPARATOR . $basename . $extension;
			$found     = file_exists($filename);
			if ($found)
			{
				debugMsg('- Found archive ' . $filename);
				// Add yet another part, with a numeric-appended filename
				$this->archiveList[] = $filename;

				$filesize = @filesize($filename);
				$this->totalSize += $filesize;

				$privateArchiveList[] = array($filename, $filesize);
			}
			else
			{
				debugMsg('- Found archive ' . $this->filename);
				// Add the last part, with the regular extension
				$this->archiveList[] = $this->filename;

				$filename = $this->filename;
				$filesize = @filesize($filename);
				$this->totalSize += $filesize;

				$privateArchiveList[] = array($filename, $filesize);
			}
		}
		debugMsg('Total archive parts: ' . $count);

		$this->currentPartNumber = -1;
		$this->currentPartOffset = 0;
		$this->runState          = AK_STATE_NOFILE;

		// Send start of file notification
		$message                     = new stdClass;
		$message->type               = 'totalsize';
		$message->content            = new stdClass;
		$message->content->totalsize = $this->totalSize;
		$message->content->filelist  = $privateArchiveList;
		$this->notify($message);
	}

	/**
	 * Returns the base extension of the file, e.g. '.jpa'
	 *
	 * @return string
	 */
	private function getBaseExtension()
	{
		static $baseextension;

		if (empty($baseextension))
		{
			$basename      = basename($this->filename);
			$lastdot       = strrpos($basename, '.');
			$baseextension = substr($basename, $lastdot);
		}

		return $baseextension;
	}

	/**
	 * Concrete classes are supposed to use this method in order to read the archive's header and
	 * prepare themselves to the point of being ready to extract the first file.
	 */
	protected abstract function readArchiveHeader();

	protected function _run()
	{
		if ($this->getState() == 'postrun')
		{
			return;
		}

		$this->setState('running');

		$timer = AKFactory::getTimer();

		$status = true;
		while ($status && ($timer->getTimeLeft() > 0))
		{
			switch ($this->runState)
			{
				case AK_STATE_NOFILE:
					debugMsg(__CLASS__ . '::_run() - Reading file header');
					$status = $this->readFileHeader();
					if ($status)
					{
						// Send start of file notification
						$message                        = new stdClass;
						$message->type                  = 'startfile';
						$message->content               = new stdClass;
						$message->content->realfile     = $this->fileHeader->file;
						$message->content->file         = $this->fileHeader->file;
						$message->content->uncompressed = $this->fileHeader->uncompressed;

						if (array_key_exists('realfile', get_object_vars($this->fileHeader)))
						{
							$message->content->realfile = $this->fileHeader->realFile;
						}

						if (array_key_exists('compressed', get_object_vars($this->fileHeader)))
						{
							$message->content->compressed = $this->fileHeader->compressed;
						}
						else
						{
							$message->content->compressed = 0;
						}

						debugMsg(__CLASS__ . '::_run() - Preparing to extract ' . $message->content->realfile);

						$this->notify($message);
					}
					else
					{
						debugMsg(__CLASS__ . '::_run() - Could not read file header');
					}
					break;

				case AK_STATE_HEADER:
				case AK_STATE_DATA:
					debugMsg(__CLASS__ . '::_run() - Processing file data');
					$status = $this->processFileData();
					break;

				case AK_STATE_DATAREAD:
				case AK_STATE_POSTPROC:
					debugMsg(__CLASS__ . '::_run() - Calling post-processing class');
					$this->postProcEngine->timestamp = $this->fileHeader->timestamp;
					$status                          = $this->postProcEngine->process();
					$this->propagateFromObject($this->postProcEngine);
					$this->runState = AK_STATE_DONE;
					break;

				case AK_STATE_DONE:
				default:
					if ($status)
					{
						debugMsg(__CLASS__ . '::_run() - Finished extracting file');
						// Send end of file notification
						$message          = new stdClass;
						$message->type    = 'endfile';
						$message->content = new stdClass;
						if (array_key_exists('realfile', get_object_vars($this->fileHeader)))
						{
							$message->content->realfile = $this->fileHeader->realFile;
						}
						else
						{
							$message->content->realfile = $this->fileHeader->file;
						}
						$message->content->file = $this->fileHeader->file;
						if (array_key_exists('compressed', get_object_vars($this->fileHeader)))
						{
							$message->content->compressed = $this->fileHeader->compressed;
						}
						else
						{
							$message->content->compressed = 0;
						}
						$message->content->uncompressed = $this->fileHeader->uncompressed;
						$this->notify($message);
					}
					$this->runState = AK_STATE_NOFILE;
					continue;
			}
		}

		$error = $this->getError();
		if (!$status && ($this->runState == AK_STATE_NOFILE) && empty($error))
		{
			debugMsg(__CLASS__ . '::_run() - Just finished');
			// We just finished
			$this->setState('postrun');
		}
		elseif (!empty($error))
		{
			debugMsg(__CLASS__ . '::_run() - Halted with an error:');
			debugMsg($error);
			$this->setState('error', $error);
		}
	}

	/**
	 * Concrete classes must use this method to read the file header
	 *
	 * @return bool True if reading the file was successful, false if an error occured or we reached end of archive
	 */
	protected abstract function readFileHeader();

	/**
	 * Concrete classes must use this method to process file data. It must set $runState to AK_STATE_DATAREAD when
	 * it's finished processing the file data.
	 *
	 * @return bool True if processing the file data was successful, false if an error occured
	 */
	protected abstract function processFileData();

	protected function _finalize()
	{
		// Nothing to do
		$this->setState('finished');
	}

	/**
	 * Opens the next part file for reading
	 */
	protected function nextFile()
	{
		debugMsg('Current part is ' . $this->currentPartNumber . '; opening the next part');
		++$this->currentPartNumber;

		if ($this->currentPartNumber > (count($this->archiveList) - 1))
		{
			$this->setState('postrun');

			return false;
		}
		else
		{
			if (is_resource($this->fp))
			{
				@fclose($this->fp);
			}
			debugMsg('Opening file ' . $this->archiveList[$this->currentPartNumber]);
			$this->fp = @fopen($this->archiveList[$this->currentPartNumber], 'rb');
			if ($this->fp === false)
			{
				debugMsg('Could not open file - crash imminent');
				$this->setError(AKText::sprintf('ERR_COULD_NOT_OPEN_ARCHIVE_PART', $this->archiveList[$this->currentPartNumber]));
			}
			fseek($this->fp, 0);
			$this->currentPartOffset = 0;

			return true;
		}
	}

	/**
	 * Returns true if we have reached the end of file
	 *
	 * @param $local bool True to return EOF of the local file, false (default) to return if we have reached the end of
	 *               the archive set
	 *
	 * @return bool True if we have reached End Of File
	 */
	protected function isEOF($local = false)
	{
		$eof = @feof($this->fp);

		if (!$eof)
		{
			// Border case: right at the part's end (eeeek!!!). For the life of me, I don't understand why
			// feof() doesn't report true. It expects the fp to be positioned *beyond* the EOF to report
			// true. Incredible! :(
			$position = @ftell($this->fp);
			$filesize = @filesize($this->archiveList[$this->currentPartNumber]);
			if ($filesize <= 0)
			{
				// 2Gb or more files on a 32 bit version of PHP tend to get screwed up. Meh.
				$eof = false;
			}
			elseif ($position >= $filesize)
			{
				$eof = true;
			}
		}

		if ($local)
		{
			return $eof;
		}
		else
		{
			return $eof && ($this->currentPartNumber >= (count($this->archiveList) - 1));
		}
	}

	/**
	 * Tries to make a directory user-writable so that we can write a file to it
	 *
	 * @param $path string A path to a file
	 */
	protected function setCorrectPermissions($path)
	{
		static $rootDir = null;

		if (is_null($rootDir))
		{
			$rootDir = rtrim(AKFactory::get('kickstart.setup.destdir', ''), '/\\');
		}

		$directory = rtrim(dirname($path), '/\\');
		if ($directory != $rootDir)
		{
			// Is this an unwritable directory?
			if (!is_writeable($directory))
			{
				$this->postProcEngine->chmod($directory, 0755);
			}
		}
		$this->postProcEngine->chmod($path, 0644);
	}

	/**
	 * Reads data from the archive and notifies the observer with the 'reading' message
	 *
	 * @param $fp
	 * @param $length
	 */
	protected function fread($fp, $length = null)
	{
		if (is_numeric($length))
		{
			if ($length > 0)
			{
				$data = fread($fp, $length);
			}
			else
			{
				$data = fread($fp, PHP_INT_MAX);
			}
		}
		else
		{
			$data = fread($fp, PHP_INT_MAX);
		}
		if ($data === false)
		{
			$data = '';
		}

		// Send start of file notification
		$message                  = new stdClass;
		$message->type            = 'reading';
		$message->content         = new stdClass;
		$message->content->length = strlen($data);
		$this->notify($message);

		return $data;
	}

	/**
	 * Removes the configured $removePath from the path $path
	 *
	 * @param   string $path The path to reduce
	 *
	 * @return  string  The reduced path
	 */
	protected function removePath($path)
	{
		if (empty($this->removePath))
		{
			return $path;
		}

		if (strpos($path, $this->removePath) === 0)
		{
			$path = substr($path, strlen($this->removePath));
			$path = ltrim($path, '/\\');
		}

		return $path;
	}
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * File post processor engines base class
 */
abstract class AKAbstractPostproc extends AKAbstractObject
{
	/** @var int The UNIX timestamp of the file's desired modification date */
	public $timestamp = 0;
	/** @var string The current (real) file path we'll have to process */
	protected $filename = null;
	/** @var int The requested permissions */
	protected $perms = 0755;
	/** @var string The temporary file path we gave to the unarchiver engine */
	protected $tempFilename = null;

	/**
	 * Processes the current file, e.g. moves it from temp to final location by FTP
	 */
	abstract public function process();

	/**
	 * The unarchiver tells us the path to the filename it wants to extract and we give it
	 * a different path instead.
	 *
	 * @param string $filename The path to the real file
	 * @param int    $perms    The permissions we need the file to have
	 *
	 * @return string The path to the temporary file
	 */
	abstract public function processFilename($filename, $perms = 0755);

	/**
	 * Recursively creates a directory if it doesn't exist
	 *
	 * @param string $dirName The directory to create
	 * @param int    $perms   The permissions to give to that directory
	 */
	abstract public function createDirRecursive($dirName, $perms);

	abstract public function chmod($file, $perms);

	abstract public function unlink($file);

	abstract public function rmdir($directory);

	abstract public function rename($from, $to);
}


/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * Descendants of this class can be used in the unarchiver's observer methods (attach, detach and notify)
 *
 * @author Nicholas
 *
 */
abstract class AKAbstractPartObserver
{
	abstract public function update($object, $message);
}


/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * Direct file writer
 */
class AKPostprocDirect extends AKAbstractPostproc
{
	public function process()
	{
		$restorePerms = AKFactory::get('kickstart.setup.restoreperms', false);
		if ($restorePerms)
		{
			@chmod($this->filename, $this->perms);
		}
		else
		{
			if (@is_file($this->filename))
			{
				@chmod($this->filename, 0644);
			}
			else
			{
				@chmod($this->filename, 0755);
			}
		}
		if ($this->timestamp > 0)
		{
			@touch($this->filename, $this->timestamp);
		}

		return true;
	}

	public function processFilename($filename, $perms = 0755)
	{
		$this->perms    = $perms;
		$this->filename = $filename;

		return $filename;
	}

	public function createDirRecursive($dirName, $perms)
	{
		if (AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			return true;
		}
		if (@mkdir($dirName, 0755, true))
		{
			@chmod($dirName, 0755);

			return true;
		}

		$root = AKFactory::get('kickstart.setup.destdir');
		$root = rtrim(str_replace('\\', '/', $root), '/');
		$dir  = rtrim(str_replace('\\', '/', $dirName), '/');
		if (strpos($dir, $root) === 0)
		{
			$dir = ltrim(substr($dir, strlen($root)), '/');
			$root .= '/';
		}
		else
		{
			$root = '';
		}

		if (empty($dir))
		{
			return true;
		}

		$dirArray = explode('/', $dir);
		$path     = '';
		foreach ($dirArray as $dir)
		{
			$path .= $dir . '/';
			$ret = is_dir($root . $path) ? true : @mkdir($root . $path);
			if (!$ret)
			{
				// Is this a file instead of a directory?
				if (is_file($root . $path))
				{
					@unlink($root . $path);
					$ret = @mkdir($root . $path);
				}
				if (!$ret)
				{
					$this->setError(AKText::sprintf('COULDNT_CREATE_DIR', $path));

					return false;
				}
			}
			// Try to set new directory permissions to 0755
			@chmod($root . $path, $perms);
		}

		return true;
	}

	public function chmod($file, $perms)
	{
		if (AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			return true;
		}

		return @chmod($file, $perms);
	}

	public function unlink($file)
	{
		return @unlink($file);
	}

	public function rmdir($directory)
	{
		return @rmdir($directory);
	}

	public function rename($from, $to)
	{
		return @rename($from, $to);
	}

}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * FTP file writer
 */
class AKPostprocFTP extends AKAbstractPostproc
{
	/** @var bool Should I use FTP over implicit SSL? */
	public $useSSL = false;
	/** @var bool use Passive mode? */
	public $passive = true;
	/** @var string FTP host name */
	public $host = '';
	/** @var int FTP port */
	public $port = 21;
	/** @var string FTP user name */
	public $user = '';
	/** @var string FTP password */
	public $pass = '';
	/** @var string FTP initial directory */
	public $dir = '';
	/** @var resource The FTP handle */
	private $handle = null;
	/** @var string The temporary directory where the data will be stored */
	private $tempDir = '';

	public function __construct()
	{
		parent::__construct();

		$this->useSSL  = AKFactory::get('kickstart.ftp.ssl', false);
		$this->passive = AKFactory::get('kickstart.ftp.passive', true);
		$this->host    = AKFactory::get('kickstart.ftp.host', '');
		$this->port    = AKFactory::get('kickstart.ftp.port', 21);
		if (trim($this->port) == '')
		{
			$this->port = 21;
		}
		$this->user    = AKFactory::get('kickstart.ftp.user', '');
		$this->pass    = AKFactory::get('kickstart.ftp.pass', '');
		$this->dir     = AKFactory::get('kickstart.ftp.dir', '');
		$this->tempDir = AKFactory::get('kickstart.ftp.tempdir', '');

		$connected = $this->connect();

		if ($connected)
		{
			if (!empty($this->tempDir))
			{
				$tempDir  = rtrim($this->tempDir, '/\\') . '/';
				$writable = $this->isDirWritable($tempDir);
			}
			else
			{
				$tempDir  = '';
				$writable = false;
			}

			if (!$writable)
			{
				// Default temporary directory is the current root
				$tempDir = KSROOTDIR;
				if (empty($tempDir))
				{
					// Oh, we have no directory reported!
					$tempDir = '.';
				}
				$absoluteDirToHere = $tempDir;
				$tempDir           = rtrim(str_replace('\\', '/', $tempDir), '/');
				if (!empty($tempDir))
				{
					$tempDir .= '/';
				}
				$this->tempDir = $tempDir;
				// Is this directory writable?
				$writable = $this->isDirWritable($tempDir);
			}

			if (!$writable)
			{
				// Nope. Let's try creating a temporary directory in the site's root.
				$tempDir                 = $absoluteDirToHere . '/kicktemp';
				$trustMeIKnowWhatImDoing = 500 + 10 + 1; // working around overzealous scanners written by bozos
				$this->createDirRecursive($tempDir, $trustMeIKnowWhatImDoing);
				// Try making it writable...
				$this->fixPermissions($tempDir);
				$writable = $this->isDirWritable($tempDir);
			}

			// Was the new directory writable?
			if (!$writable)
			{
				// Let's see if the user has specified one
				$userdir = AKFactory::get('kickstart.ftp.tempdir', '');
				if (!empty($userdir))
				{
					// Is it an absolute or a relative directory?
					$absolute = false;
					$absolute = $absolute || (substr($userdir, 0, 1) == '/');
					$absolute = $absolute || (substr($userdir, 1, 1) == ':');
					$absolute = $absolute || (substr($userdir, 2, 1) == ':');
					if (!$absolute)
					{
						// Make absolute
						$tempDir = $absoluteDirToHere . $userdir;
					}
					else
					{
						// it's already absolute
						$tempDir = $userdir;
					}
					// Does the directory exist?
					if (is_dir($tempDir))
					{
						// Yeah. Is it writable?
						$writable = $this->isDirWritable($tempDir);
					}
				}
			}
			$this->tempDir = $tempDir;

			if (!$writable)
			{
				// No writable directory found!!!
				$this->setError(AKText::_('FTP_TEMPDIR_NOT_WRITABLE'));
			}
			else
			{
				AKFactory::set('kickstart.ftp.tempdir', $tempDir);
				$this->tempDir = $tempDir;
			}
		}
	}

	public function connect()
	{
		// Connect to server, using SSL if so required
		if ($this->useSSL)
		{
			$this->handle = @ftp_ssl_connect($this->host, $this->port);
		}
		else
		{
			$this->handle = @ftp_connect($this->host, $this->port);
		}
		if ($this->handle === false)
		{
			$this->setError(AKText::_('WRONG_FTP_HOST'));

			return false;
		}

		// Login
		if (!@ftp_login($this->handle, $this->user, $this->pass))
		{
			$this->setError(AKText::_('WRONG_FTP_USER'));
			@ftp_close($this->handle);

			return false;
		}

		// Change to initial directory
		if (!@ftp_chdir($this->handle, $this->dir))
		{
			$this->setError(AKText::_('WRONG_FTP_PATH1'));
			@ftp_close($this->handle);

			return false;
		}

		// Enable passive mode if the user requested it
		if ($this->passive)
		{
			@ftp_pasv($this->handle, true);
		}
		else
		{
			@ftp_pasv($this->handle, false);
		}

		// Try to download ourselves
		$testFilename = defined('KSSELFNAME') ? KSSELFNAME : basename(__FILE__);
		$tempHandle   = fopen('php://temp', 'r+');
		if (@ftp_fget($this->handle, $tempHandle, $testFilename, FTP_ASCII, 0) === false)
		{
			$this->setError(AKText::_('WRONG_FTP_PATH2'));
			@ftp_close($this->handle);
			fclose($tempHandle);

			return false;
		}
		fclose($tempHandle);

		return true;
	}

	private function isDirWritable($dir)
	{
		$fp = @fopen($dir . '/kickstart.dat', 'wb');
		if ($fp === false)
		{
			return false;
		}
		else
		{
			@fclose($fp);
			unlink($dir . '/kickstart.dat');

			return true;
		}
	}

	public function createDirRecursive($dirName, $perms)
	{
		// Strip absolute filesystem path to website's root
		$removePath = AKFactory::get('kickstart.setup.destdir', '');
		if (!empty($removePath))
		{
			// UNIXize the paths
			$removePath = str_replace('\\', '/', $removePath);
			$dirName    = str_replace('\\', '/', $dirName);
			// Make sure they both end in a slash
			$removePath = rtrim($removePath, '/\\') . '/';
			$dirName    = rtrim($dirName, '/\\') . '/';
			// Process the path removal
			$left = substr($dirName, 0, strlen($removePath));
			if ($left == $removePath)
			{
				$dirName = substr($dirName, strlen($removePath));
			}
		}
		if (empty($dirName))
		{
			$dirName = '';
		} // 'cause the substr() above may return FALSE.

		$check = '/' . trim($this->dir, '/') . '/' . trim($dirName, '/');
		if ($this->is_dir($check))
		{
			return true;
		}

		$alldirs     = explode('/', $dirName);
		$previousDir = '/' . trim($this->dir);
		foreach ($alldirs as $curdir)
		{
			$check = $previousDir . '/' . $curdir;
			if (!$this->is_dir($check))
			{
				// Proactively try to delete a file by the same name
				@ftp_delete($this->handle, $check);

				if (@ftp_mkdir($this->handle, $check) === false)
				{
					// If we couldn't create the directory, attempt to fix the permissions in the PHP level and retry!
					$this->fixPermissions($removePath . $check);
					if (@ftp_mkdir($this->handle, $check) === false)
					{
						// Can we fall back to pure PHP mode, sire?
						if (!@mkdir($check))
						{
							$this->setError(AKText::sprintf('FTP_CANT_CREATE_DIR', $check));

							return false;
						}
						else
						{
							// Since the directory was built by PHP, change its permissions
							$trustMeIKnowWhatImDoing =
								500 + 10 + 1; // working around overzealous scanners written by bozos
							@chmod($check, $trustMeIKnowWhatImDoing);

							return true;
						}
					}
				}
				@ftp_chmod($this->handle, $perms, $check);
			}
			$previousDir = $check;
		}

		return true;
	}

	private function is_dir($dir)
	{
		return @ftp_chdir($this->handle, $dir);
	}

	private function fixPermissions($path)
	{
		// Turn off error reporting
		if (!defined('KSDEBUG'))
		{
			$oldErrorReporting = @error_reporting(E_NONE);
		}

		// Get UNIX style paths
		$relPath  = str_replace('\\', '/', $path);
		$basePath = rtrim(str_replace('\\', '/', KSROOTDIR), '/');
		$basePath = rtrim($basePath, '/');
		if (!empty($basePath))
		{
			$basePath .= '/';
		}
		// Remove the leading relative root
		if (substr($relPath, 0, strlen($basePath)) == $basePath)
		{
			$relPath = substr($relPath, strlen($basePath));
		}
		$dirArray  = explode('/', $relPath);
		$pathBuilt = rtrim($basePath, '/');
		foreach ($dirArray as $dir)
		{
			if (empty($dir))
			{
				continue;
			}
			$oldPath = $pathBuilt;
			$pathBuilt .= '/' . $dir;
			if (is_dir($oldPath . $dir))
			{
				$trustMeIKnowWhatImDoing = 500 + 10 + 1; // working around overzealous scanners written by bozos
				@chmod($oldPath . $dir, $trustMeIKnowWhatImDoing);
			}
			else
			{
				$trustMeIKnowWhatImDoing = 500 + 10 + 1; // working around overzealous scanners written by bozos
				if (@chmod($oldPath . $dir, $trustMeIKnowWhatImDoing) === false)
				{
					@unlink($oldPath . $dir);
				}
			}
		}

		// Restore error reporting
		if (!defined('KSDEBUG'))
		{
			@error_reporting($oldErrorReporting);
		}
	}

	function __wakeup()
	{
		$this->connect();
	}

	public function process()
	{
		if (is_null($this->tempFilename))
		{
			// If an empty filename is passed, it means that we shouldn't do any post processing, i.e.
			// the entity was a directory or symlink
			return true;
		}

		$remotePath = dirname($this->filename);
		$removePath = AKFactory::get('kickstart.setup.destdir', '');
		if (!empty($removePath))
		{
			$removePath = ltrim($removePath, "/");
			$remotePath = ltrim($remotePath, "/");
			$left       = substr($remotePath, 0, strlen($removePath));
			if ($left == $removePath)
			{
				$remotePath = substr($remotePath, strlen($removePath));
			}
		}

		$absoluteFSPath  = dirname($this->filename);
		$relativeFTPPath = trim($remotePath, '/');
		$absoluteFTPPath = '/' . trim($this->dir, '/') . '/' . trim($remotePath, '/');
		$onlyFilename    = basename($this->filename);

		$remoteName = $absoluteFTPPath . '/' . $onlyFilename;

		$ret = @ftp_chdir($this->handle, $absoluteFTPPath);
		if ($ret === false)
		{
			$ret = $this->createDirRecursive($absoluteFSPath, 0755);
			if ($ret === false)
			{
				$this->setError(AKText::sprintf('FTP_COULDNT_UPLOAD', $this->filename));

				return false;
			}
			$ret = @ftp_chdir($this->handle, $absoluteFTPPath);
			if ($ret === false)
			{
				$this->setError(AKText::sprintf('FTP_COULDNT_UPLOAD', $this->filename));

				return false;
			}
		}

		$ret = @ftp_put($this->handle, $remoteName, $this->tempFilename, FTP_BINARY);
		if ($ret === false)
		{
			// If we couldn't create the file, attempt to fix the permissions in the PHP level and retry!
			$this->fixPermissions($this->filename);
			$this->unlink($this->filename);

			$fp = @fopen($this->tempFilename, 'rb');
			if ($fp !== false)
			{
				$ret = @ftp_fput($this->handle, $remoteName, $fp, FTP_BINARY);
				@fclose($fp);
			}
			else
			{
				$ret = false;
			}
		}
		@unlink($this->tempFilename);

		if ($ret === false)
		{
			$this->setError(AKText::sprintf('FTP_COULDNT_UPLOAD', $this->filename));

			return false;
		}
		$restorePerms = AKFactory::get('kickstart.setup.restoreperms', false);
		if ($restorePerms)
		{
			@ftp_chmod($this->_handle, $this->perms, $remoteName);
		}
		else
		{
			@ftp_chmod($this->_handle, 0644, $remoteName);
		}

		return true;
	}

	/*
	 * Tries to fix directory/file permissions in the PHP level, so that
	 * the FTP operation doesn't fail.
	 * @param $path string The full path to a directory or file
	 */

	public function unlink($file)
	{
		$removePath = AKFactory::get('kickstart.setup.destdir', '');
		if (!empty($removePath))
		{
			$left = substr($file, 0, strlen($removePath));
			if ($left == $removePath)
			{
				$file = substr($file, strlen($removePath));
			}
		}

		$check = '/' . trim($this->dir, '/') . '/' . trim($file, '/');

		return @ftp_delete($this->handle, $check);
	}

	public function processFilename($filename, $perms = 0755)
	{
		// Catch some error conditions...
		if ($this->getError())
		{
			return false;
		}

		// If a null filename is passed, it means that we shouldn't do any post processing, i.e.
		// the entity was a directory or symlink
		if (is_null($filename))
		{
			$this->filename     = null;
			$this->tempFilename = null;

			return null;
		}

		// Strip absolute filesystem path to website's root
		$removePath = AKFactory::get('kickstart.setup.destdir', '');
		if (!empty($removePath))
		{
			$left = substr($filename, 0, strlen($removePath));
			if ($left == $removePath)
			{
				$filename = substr($filename, strlen($removePath));
			}
		}

		// Trim slash on the left
		$filename = ltrim($filename, '/');

		$this->filename     = $filename;
		$this->tempFilename = tempnam($this->tempDir, 'kickstart-');
		$this->perms        = $perms;

		if (empty($this->tempFilename))
		{
			// Oops! Let's try something different
			$this->tempFilename = $this->tempDir . '/kickstart-' . time() . '.dat';
		}

		return $this->tempFilename;
	}

	public function close()
	{
		@ftp_close($this->handle);
	}

	public function chmod($file, $perms)
	{
		return @ftp_chmod($this->handle, $perms, $file);
	}

	public function rmdir($directory)
	{
		$removePath = AKFactory::get('kickstart.setup.destdir', '');
		if (!empty($removePath))
		{
			$left = substr($directory, 0, strlen($removePath));
			if ($left == $removePath)
			{
				$directory = substr($directory, strlen($removePath));
			}
		}

		$check = '/' . trim($this->dir, '/') . '/' . trim($directory, '/');

		return @ftp_rmdir($this->handle, $check);
	}

	public function rename($from, $to)
	{
		$originalFrom = $from;
		$originalTo   = $to;

		$removePath = AKFactory::get('kickstart.setup.destdir', '');
		if (!empty($removePath))
		{
			$left = substr($from, 0, strlen($removePath));
			if ($left == $removePath)
			{
				$from = substr($from, strlen($removePath));
			}
		}
		$from = '/' . trim($this->dir, '/') . '/' . trim($from, '/');

		if (!empty($removePath))
		{
			$left = substr($to, 0, strlen($removePath));
			if ($left == $removePath)
			{
				$to = substr($to, strlen($removePath));
			}
		}
		$to = '/' . trim($this->dir, '/') . '/' . trim($to, '/');

		$result = @ftp_rename($this->handle, $from, $to);
		if ($result !== true)
		{
			return @rename($from, $to);
		}
		else
		{
			return true;
		}
	}

}


/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * FTP file writer
 */
class AKPostprocSFTP extends AKAbstractPostproc
{
	/** @var bool Should I use FTP over implicit SSL? */
	public $useSSL = false;
	/** @var bool use Passive mode? */
	public $passive = true;
	/** @var string FTP host name */
	public $host = '';
	/** @var int FTP port */
	public $port = 21;
	/** @var string FTP user name */
	public $user = '';
	/** @var string FTP password */
	public $pass = '';
	/** @var string FTP initial directory */
	public $dir = '';

	/** @var resource SFTP resource handle */
	private $handle = null;

	/** @var resource SSH2 connection resource handle */
	private $_connection = null;

	/** @var string Current remote directory, including the remote directory string */
	private $_currentdir;

	/** @var string The temporary directory where the data will be stored */
	private $tempDir = '';

	public function __construct()
	{
		parent::__construct();

		$this->host = AKFactory::get('kickstart.ftp.host', '');
		$this->port = AKFactory::get('kickstart.ftp.port', 22);

		if (trim($this->port) == '')
		{
			$this->port = 22;
		}

		$this->user    = AKFactory::get('kickstart.ftp.user', '');
		$this->pass    = AKFactory::get('kickstart.ftp.pass', '');
		$this->dir     = AKFactory::get('kickstart.ftp.dir', '');
		$this->tempDir = AKFactory::get('kickstart.ftp.tempdir', '');

		$connected = $this->connect();

		if ($connected)
		{
			if (!empty($this->tempDir))
			{
				$tempDir  = rtrim($this->tempDir, '/\\') . '/';
				$writable = $this->isDirWritable($tempDir);
			}
			else
			{
				$tempDir  = '';
				$writable = false;
			}

			if (!$writable)
			{
				// Default temporary directory is the current root
				$tempDir = KSROOTDIR;
				if (empty($tempDir))
				{
					// Oh, we have no directory reported!
					$tempDir = '.';
				}
				$absoluteDirToHere = $tempDir;
				$tempDir           = rtrim(str_replace('\\', '/', $tempDir), '/');
				if (!empty($tempDir))
				{
					$tempDir .= '/';
				}
				$this->tempDir = $tempDir;
				// Is this directory writable?
				$writable = $this->isDirWritable($tempDir);
			}

			if (!$writable)
			{
				// Nope. Let's try creating a temporary directory in the site's root.
				$tempDir                 = $absoluteDirToHere . '/kicktemp';
				$trustMeIKnowWhatImDoing = 500 + 10 + 1; // working around overzealous scanners written by bozos
				$this->createDirRecursive($tempDir, $trustMeIKnowWhatImDoing);
				// Try making it writable...
				$this->fixPermissions($tempDir);
				$writable = $this->isDirWritable($tempDir);
			}

			// Was the new directory writable?
			if (!$writable)
			{
				// Let's see if the user has specified one
				$userdir = AKFactory::get('kickstart.ftp.tempdir', '');
				if (!empty($userdir))
				{
					// Is it an absolute or a relative directory?
					$absolute = false;
					$absolute = $absolute || (substr($userdir, 0, 1) == '/');
					$absolute = $absolute || (substr($userdir, 1, 1) == ':');
					$absolute = $absolute || (substr($userdir, 2, 1) == ':');
					if (!$absolute)
					{
						// Make absolute
						$tempDir = $absoluteDirToHere . $userdir;
					}
					else
					{
						// it's already absolute
						$tempDir = $userdir;
					}
					// Does the directory exist?
					if (is_dir($tempDir))
					{
						// Yeah. Is it writable?
						$writable = $this->isDirWritable($tempDir);
					}
				}
			}
			$this->tempDir = $tempDir;

			if (!$writable)
			{
				// No writable directory found!!!
				$this->setError(AKText::_('SFTP_TEMPDIR_NOT_WRITABLE'));
			}
			else
			{
				AKFactory::set('kickstart.ftp.tempdir', $tempDir);
				$this->tempDir = $tempDir;
			}
		}
	}

	public function connect()
	{
		$this->_connection = false;

		if (!function_exists('ssh2_connect'))
		{
			$this->setError(AKText::_('SFTP_NO_SSH2'));

			return false;
		}

		$this->_connection = @ssh2_connect($this->host, $this->port);

		if (!@ssh2_auth_password($this->_connection, $this->user, $this->pass))
		{
			$this->setError(AKText::_('SFTP_WRONG_USER'));

			$this->_connection = false;

			return false;
		}

		$this->handle = @ssh2_sftp($this->_connection);

		// I must have an absolute directory
		if (!$this->dir)
		{
			$this->setError(AKText::_('SFTP_WRONG_STARTING_DIR'));

			return false;
		}

		// Change to initial directory
		if (!$this->sftp_chdir('/'))
		{
			$this->setError(AKText::_('SFTP_WRONG_STARTING_DIR'));

			unset($this->_connection);
			unset($this->handle);

			return false;
		}

		// Try to download ourselves
		$testFilename = defined('KSSELFNAME') ? KSSELFNAME : basename(__FILE__);
		$basePath     = '/' . trim($this->dir, '/');

		if (@fopen("ssh2.sftp://{$this->handle}$basePath/$testFilename", 'r+') === false)
		{
			$this->setError(AKText::_('SFTP_WRONG_STARTING_DIR'));

			unset($this->_connection);
			unset($this->handle);

			return false;
		}

		return true;
	}

	/**
	 * Changes to the requested directory in the remote server. You give only the
	 * path relative to the initial directory and it does all the rest by itself,
	 * including doing nothing if the remote directory is the one we want.
	 *
	 * @param   string $dir The (realtive) remote directory
	 *
	 * @return  bool True if successful, false otherwise.
	 */
	private function sftp_chdir($dir)
	{
		// Strip absolute filesystem path to website's root
		$removePath = AKFactory::get('kickstart.setup.destdir', '');
		if (!empty($removePath))
		{
			// UNIXize the paths
			$removePath = str_replace('\\', '/', $removePath);
			$dir        = str_replace('\\', '/', $dir);

			// Make sure they both end in a slash
			$removePath = rtrim($removePath, '/\\') . '/';
			$dir        = rtrim($dir, '/\\') . '/';

			// Process the path removal
			$left = substr($dir, 0, strlen($removePath));

			if ($left == $removePath)
			{
				$dir = substr($dir, strlen($removePath));
			}
		}

		if (empty($dir))
		{
			// Because the substr() above may return FALSE.
			$dir = '';
		}

		// Calculate "real" (absolute) SFTP path
		$realdir = substr($this->dir, -1) == '/' ? substr($this->dir, 0, strlen($this->dir) - 1) : $this->dir;
		$realdir .= '/' . $dir;
		$realdir = substr($realdir, 0, 1) == '/' ? $realdir : '/' . $realdir;

		if ($this->_currentdir == $realdir)
		{
			// Already there, do nothing
			return true;
		}

		$result = @ssh2_sftp_stat($this->handle, $realdir);

		if ($result === false)
		{
			return false;
		}
		else
		{
			// Update the private "current remote directory" variable
			$this->_currentdir = $realdir;

			return true;
		}
	}

	private function isDirWritable($dir)
	{
		if (@fopen("ssh2.sftp://{$this->handle}$dir/kickstart.dat", 'wb') === false)
		{
			return false;
		}
		else
		{
			@ssh2_sftp_unlink($this->handle, $dir . '/kickstart.dat');

			return true;
		}
	}

	public function createDirRecursive($dirName, $perms)
	{
		// Strip absolute filesystem path to website's root
		$removePath = AKFactory::get('kickstart.setup.destdir', '');
		if (!empty($removePath))
		{
			// UNIXize the paths
			$removePath = str_replace('\\', '/', $removePath);
			$dirName    = str_replace('\\', '/', $dirName);
			// Make sure they both end in a slash
			$removePath = rtrim($removePath, '/\\') . '/';
			$dirName    = rtrim($dirName, '/\\') . '/';
			// Process the path removal
			$left = substr($dirName, 0, strlen($removePath));
			if ($left == $removePath)
			{
				$dirName = substr($dirName, strlen($removePath));
			}
		}
		if (empty($dirName))
		{
			$dirName = '';
		} // 'cause the substr() above may return FALSE.

		$check = '/' . trim($this->dir, '/ ') . '/' . trim($dirName, '/');

		if ($this->is_dir($check))
		{
			return true;
		}

		$alldirs     = explode('/', $dirName);
		$previousDir = '/' . trim($this->dir, '/ ');

		foreach ($alldirs as $curdir)
		{
			if (!$curdir)
			{
				continue;
			}

			$check = $previousDir . '/' . $curdir;

			if (!$this->is_dir($check))
			{
				// Proactively try to delete a file by the same name
				@ssh2_sftp_unlink($this->handle, $check);

				if (@ssh2_sftp_mkdir($this->handle, $check) === false)
				{
					// If we couldn't create the directory, attempt to fix the permissions in the PHP level and retry!
					$this->fixPermissions($check);

					if (@ssh2_sftp_mkdir($this->handle, $check) === false)
					{
						// Can we fall back to pure PHP mode, sire?
						if (!@mkdir($check))
						{
							$this->setError(AKText::sprintf('FTP_CANT_CREATE_DIR', $check));

							return false;
						}
						else
						{
							// Since the directory was built by PHP, change its permissions
							$trustMeIKnowWhatImDoing =
								500 + 10 + 1; // working around overzealous scanners written by bozos
							@chmod($check, $trustMeIKnowWhatImDoing);

							return true;
						}
					}
				}

				@ssh2_sftp_chmod($this->handle, $check, $perms);
			}

			$previousDir = $check;
		}

		return true;
	}

	private function is_dir($dir)
	{
		return $this->sftp_chdir($dir);
	}

	private function fixPermissions($path)
	{
		// Turn off error reporting
		if (!defined('KSDEBUG'))
		{
			$oldErrorReporting = @error_reporting(E_NONE);
		}

		// Get UNIX style paths
		$relPath  = str_replace('\\', '/', $path);
		$basePath = rtrim(str_replace('\\', '/', KSROOTDIR), '/');
		$basePath = rtrim($basePath, '/');

		if (!empty($basePath))
		{
			$basePath .= '/';
		}

		// Remove the leading relative root
		if (substr($relPath, 0, strlen($basePath)) == $basePath)
		{
			$relPath = substr($relPath, strlen($basePath));
		}

		$dirArray  = explode('/', $relPath);
		$pathBuilt = rtrim($basePath, '/');

		foreach ($dirArray as $dir)
		{
			if (empty($dir))
			{
				continue;
			}

			$oldPath = $pathBuilt;
			$pathBuilt .= '/' . $dir;

			if (is_dir($oldPath . '/' . $dir))
			{
				$trustMeIKnowWhatImDoing = 500 + 10 + 1; // working around overzealous scanners written by bozos
				@chmod($oldPath . '/' . $dir, $trustMeIKnowWhatImDoing);
			}
			else
			{
				$trustMeIKnowWhatImDoing = 500 + 10 + 1; // working around overzealous scanners written by bozos
				if (@chmod($oldPath . '/' . $dir, $trustMeIKnowWhatImDoing) === false)
				{
					@unlink($oldPath . $dir);
				}
			}
		}

		// Restore error reporting
		if (!defined('KSDEBUG'))
		{
			@error_reporting($oldErrorReporting);
		}
	}

	function __wakeup()
	{
		$this->connect();
	}

	/*
	 * Tries to fix directory/file permissions in the PHP level, so that
	 * the FTP operation doesn't fail.
	 * @param $path string The full path to a directory or file
	 */

	public function process()
	{
		if (is_null($this->tempFilename))
		{
			// If an empty filename is passed, it means that we shouldn't do any post processing, i.e.
			// the entity was a directory or symlink
			return true;
		}

		$remotePath      = dirname($this->filename);
		$absoluteFSPath  = dirname($this->filename);
		$absoluteFTPPath = '/' . trim($this->dir, '/') . '/' . trim($remotePath, '/');
		$onlyFilename    = basename($this->filename);

		$remoteName = $absoluteFTPPath . '/' . $onlyFilename;

		$ret = $this->sftp_chdir($absoluteFTPPath);

		if ($ret === false)
		{
			$ret = $this->createDirRecursive($absoluteFSPath, 0755);

			if ($ret === false)
			{
				$this->setError(AKText::sprintf('SFTP_COULDNT_UPLOAD', $this->filename));

				return false;
			}

			$ret = $this->sftp_chdir($absoluteFTPPath);

			if ($ret === false)
			{
				$this->setError(AKText::sprintf('SFTP_COULDNT_UPLOAD', $this->filename));

				return false;
			}
		}

		// Create the file
		$ret = $this->write($this->tempFilename, $remoteName);

		// If I got a -1 it means that I wasn't able to open the file, so I have to stop here
		if ($ret === -1)
		{
			$this->setError(AKText::sprintf('SFTP_COULDNT_UPLOAD', $this->filename));

			return false;
		}

		if ($ret === false)
		{
			// If we couldn't create the file, attempt to fix the permissions in the PHP level and retry!
			$this->fixPermissions($this->filename);
			$this->unlink($this->filename);

			$ret = $this->write($this->tempFilename, $remoteName);
		}

		@unlink($this->tempFilename);

		if ($ret === false)
		{
			$this->setError(AKText::sprintf('SFTP_COULDNT_UPLOAD', $this->filename));

			return false;
		}
		$restorePerms = AKFactory::get('kickstart.setup.restoreperms', false);

		if ($restorePerms)
		{
			$this->chmod($remoteName, $this->perms);
		}
		else
		{
			$this->chmod($remoteName, 0644);
		}

		return true;
	}

	private function write($local, $remote)
	{
		$fp      = @fopen("ssh2.sftp://{$this->handle}$remote", 'w');
		$localfp = @fopen($local, 'rb');

		if ($fp === false)
		{
			return -1;
		}

		if ($localfp === false)
		{
			@fclose($fp);

			return -1;
		}

		$res = true;

		while (!feof($localfp) && ($res !== false))
		{
			$buffer = @fread($localfp, 65567);
			$res    = @fwrite($fp, $buffer);
		}

		@fclose($fp);
		@fclose($localfp);

		return $res;
	}

	public function unlink($file)
	{
		$check = '/' . trim($this->dir, '/') . '/' . trim($file, '/');

		return @ssh2_sftp_unlink($this->handle, $check);
	}

	public function chmod($file, $perms)
	{
		return @ssh2_sftp_chmod($this->handle, $file, $perms);
	}

	public function processFilename($filename, $perms = 0755)
	{
		// Catch some error conditions...
		if ($this->getError())
		{
			return false;
		}

		// If a null filename is passed, it means that we shouldn't do any post processing, i.e.
		// the entity was a directory or symlink
		if (is_null($filename))
		{
			$this->filename     = null;
			$this->tempFilename = null;

			return null;
		}

		// Strip absolute filesystem path to website's root
		$removePath = AKFactory::get('kickstart.setup.destdir', '');
		if (!empty($removePath))
		{
			$left = substr($filename, 0, strlen($removePath));
			if ($left == $removePath)
			{
				$filename = substr($filename, strlen($removePath));
			}
		}

		// Trim slash on the left
		$filename = ltrim($filename, '/');

		$this->filename     = $filename;
		$this->tempFilename = tempnam($this->tempDir, 'kickstart-');
		$this->perms        = $perms;

		if (empty($this->tempFilename))
		{
			// Oops! Let's try something different
			$this->tempFilename = $this->tempDir . '/kickstart-' . time() . '.dat';
		}

		return $this->tempFilename;
	}

	public function close()
	{
		unset($this->_connection);
		unset($this->handle);
	}

	public function rmdir($directory)
	{
		$check = '/' . trim($this->dir, '/') . '/' . trim($directory, '/');

		return @ssh2_sftp_rmdir($this->handle, $check);
	}

	public function rename($from, $to)
	{
		$from = '/' . trim($this->dir, '/') . '/' . trim($from, '/');
		$to   = '/' . trim($this->dir, '/') . '/' . trim($to, '/');

		$result = @ssh2_sftp_rename($this->handle, $from, $to);

		if ($result !== true)
		{
			return @rename($from, $to);
		}
		else
		{
			return true;
		}
	}

}


/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * Hybrid direct / FTP mode file writer
 */
class AKPostprocHybrid extends AKAbstractPostproc
{

	/** @var bool Should I use the FTP layer? */
	public $useFTP = false;

	/** @var bool Should I use FTP over implicit SSL? */
	public $useSSL = false;

	/** @var bool use Passive mode? */
	public $passive = true;

	/** @var string FTP host name */
	public $host = '';

	/** @var int FTP port */
	public $port = 21;

	/** @var string FTP user name */
	public $user = '';

	/** @var string FTP password */
	public $pass = '';

	/** @var string FTP initial directory */
	public $dir = '';

	/** @var resource The FTP handle */
	private $handle = null;

	/** @var string The temporary directory where the data will be stored */
	private $tempDir = '';

	/** @var null The FTP connection handle */
	private $_handle = null;

	/**
	 * Public constructor. Tries to connect to the FTP server.
	 */
	public function __construct()
	{
		parent::__construct();

		$this->useFTP  = true;
		$this->useSSL  = AKFactory::get('kickstart.ftp.ssl', false);
		$this->passive = AKFactory::get('kickstart.ftp.passive', true);
		$this->host    = AKFactory::get('kickstart.ftp.host', '');
		$this->port    = AKFactory::get('kickstart.ftp.port', 21);
		$this->user    = AKFactory::get('kickstart.ftp.user', '');
		$this->pass    = AKFactory::get('kickstart.ftp.pass', '');
		$this->dir     = AKFactory::get('kickstart.ftp.dir', '');
		$this->tempDir = AKFactory::get('kickstart.ftp.tempdir', '');

		if (trim($this->port) == '')
		{
			$this->port = 21;
		}

		// If FTP is not configured, skip it altogether
		if (empty($this->host) || empty($this->user) || empty($this->pass))
		{
			$this->useFTP = false;
		}

		// Try to connect to the FTP server
		$connected = $this->connect();

		// If the connection fails, skip FTP altogether
		if (!$connected)
		{
			$this->useFTP = false;
		}

		if ($connected)
		{
			if (!empty($this->tempDir))
			{
				$tempDir  = rtrim($this->tempDir, '/\\') . '/';
				$writable = $this->isDirWritable($tempDir);
			}
			else
			{
				$tempDir  = '';
				$writable = false;
			}

			if (!$writable)
			{
				// Default temporary directory is the current root
				$tempDir = KSROOTDIR;
				if (empty($tempDir))
				{
					// Oh, we have no directory reported!
					$tempDir = '.';
				}
				$absoluteDirToHere = $tempDir;
				$tempDir           = rtrim(str_replace('\\', '/', $tempDir), '/');
				if (!empty($tempDir))
				{
					$tempDir .= '/';
				}
				$this->tempDir = $tempDir;
				// Is this directory writable?
				$writable = $this->isDirWritable($tempDir);
			}

			if (!$writable)
			{
				// Nope. Let's try creating a temporary directory in the site's root.
				$tempDir                 = $absoluteDirToHere . '/kicktemp';
				$trustMeIKnowWhatImDoing = 500 + 10 + 1; // working around overzealous scanners written by bozos
				$this->createDirRecursive($tempDir, $trustMeIKnowWhatImDoing);
				// Try making it writable...
				$this->fixPermissions($tempDir);
				$writable = $this->isDirWritable($tempDir);
			}

			// Was the new directory writable?
			if (!$writable)
			{
				// Let's see if the user has specified one
				$userdir = AKFactory::get('kickstart.ftp.tempdir', '');
				if (!empty($userdir))
				{
					// Is it an absolute or a relative directory?
					$absolute = false;
					$absolute = $absolute || (substr($userdir, 0, 1) == '/');
					$absolute = $absolute || (substr($userdir, 1, 1) == ':');
					$absolute = $absolute || (substr($userdir, 2, 1) == ':');
					if (!$absolute)
					{
						// Make absolute
						$tempDir = $absoluteDirToHere . $userdir;
					}
					else
					{
						// it's already absolute
						$tempDir = $userdir;
					}
					// Does the directory exist?
					if (is_dir($tempDir))
					{
						// Yeah. Is it writable?
						$writable = $this->isDirWritable($tempDir);
					}
				}
			}
			$this->tempDir = $tempDir;

			if (!$writable)
			{
				// No writable directory found!!!
				$this->setError(AKText::_('FTP_TEMPDIR_NOT_WRITABLE'));
			}
			else
			{
				AKFactory::set('kickstart.ftp.tempdir', $tempDir);
				$this->tempDir = $tempDir;
			}
		}
	}

	/**
	 * Tries to connect to the FTP server
	 *
	 * @return bool
	 */
	public function connect()
	{
		if (!$this->useFTP)
		{
			return false;
		}

		// Connect to server, using SSL if so required
		if ($this->useSSL)
		{
			$this->handle = @ftp_ssl_connect($this->host, $this->port);
		}
		else
		{
			$this->handle = @ftp_connect($this->host, $this->port);
		}
		if ($this->handle === false)
		{
			$this->setError(AKText::_('WRONG_FTP_HOST'));

			return false;
		}

		// Login
		if (!@ftp_login($this->handle, $this->user, $this->pass))
		{
			$this->setError(AKText::_('WRONG_FTP_USER'));
			@ftp_close($this->handle);

			return false;
		}

		// Change to initial directory
		if (!@ftp_chdir($this->handle, $this->dir))
		{
			$this->setError(AKText::_('WRONG_FTP_PATH1'));
			@ftp_close($this->handle);

			return false;
		}

		// Enable passive mode if the user requested it
		if ($this->passive)
		{
			@ftp_pasv($this->handle, true);
		}
		else
		{
			@ftp_pasv($this->handle, false);
		}

		// Try to download ourselves
		$testFilename = defined('KSSELFNAME') ? KSSELFNAME : basename(__FILE__);
		$tempHandle   = fopen('php://temp', 'r+');

		if (@ftp_fget($this->handle, $tempHandle, $testFilename, FTP_ASCII, 0) === false)
		{
			$this->setError(AKText::_('WRONG_FTP_PATH2'));
			@ftp_close($this->handle);
			fclose($tempHandle);

			return false;
		}

		fclose($tempHandle);

		return true;
	}

	/**
	 * Is the directory writeable?
	 *
	 * @param string $dir The directory ti check
	 *
	 * @return bool
	 */
	private function isDirWritable($dir)
	{
		$fp = @fopen($dir . '/kickstart.dat', 'wb');

		if ($fp === false)
		{
			return false;
		}

		@fclose($fp);
		unlink($dir . '/kickstart.dat');

		return true;
	}

	/**
	 * Create a directory, recursively
	 *
	 * @param string $dirName The directory to create
	 * @param int    $perms   The permissions to give to the directory
	 *
	 * @return bool
	 */
	public function createDirRecursive($dirName, $perms)
	{
		// Strip absolute filesystem path to website's root
		$removePath = AKFactory::get('kickstart.setup.destdir', '');

		if (!empty($removePath))
		{
			// UNIXize the paths
			$removePath = str_replace('\\', '/', $removePath);
			$dirName    = str_replace('\\', '/', $dirName);
			// Make sure they both end in a slash
			$removePath = rtrim($removePath, '/\\') . '/';
			$dirName    = rtrim($dirName, '/\\') . '/';
			// Process the path removal
			$left = substr($dirName, 0, strlen($removePath));

			if ($left == $removePath)
			{
				$dirName = substr($dirName, strlen($removePath));
			}
		}

		// 'cause the substr() above may return FALSE.
		if (empty($dirName))
		{
			$dirName = '';
		}

		$check   = '/' . trim($this->dir, '/') . '/' . trim($dirName, '/');
		$checkFS = $removePath . trim($dirName, '/');

		if ($this->is_dir($check))
		{
			return true;
		}

		$alldirs       = explode('/', $dirName);
		$previousDir   = '/' . trim($this->dir);
		$previousDirFS = rtrim($removePath, '/\\');

		foreach ($alldirs as $curdir)
		{
			$check   = $previousDir . '/' . $curdir;
			$checkFS = $previousDirFS . '/' . $curdir;

			if (!is_dir($checkFS) && !$this->is_dir($check))
			{
				// Proactively try to delete a file by the same name
				if (!@unlink($checkFS) && $this->useFTP)
				{
					@ftp_delete($this->handle, $check);
				}

				$createdDir = @mkdir($checkFS, 0755);

				if (!$createdDir && $this->useFTP)
				{
					$createdDir = @ftp_mkdir($this->handle, $check);
				}

				if ($createdDir === false)
				{
					// If we couldn't create the directory, attempt to fix the permissions in the PHP level and retry!
					$this->fixPermissions($checkFS);

					$createdDir = @mkdir($checkFS, 0755);
					if (!$createdDir && $this->useFTP)
					{
						$createdDir = @ftp_mkdir($this->handle, $check);
					}

					if ($createdDir === false)
					{
						$this->setError(AKText::sprintf('FTP_CANT_CREATE_DIR', $check));

						return false;
					}
				}

				if (!@chmod($checkFS, $perms) && $this->useFTP)
				{
					@ftp_chmod($this->handle, $perms, $check);
				}
			}

			$previousDir   = $check;
			$previousDirFS = $checkFS;
		}

		return true;
	}

	private function is_dir($dir)
	{
		if ($this->useFTP)
		{
			return @ftp_chdir($this->handle, $dir);
		}

		return false;
	}

	/**
	 * Tries to fix directory/file permissions in the PHP level, so that
	 * the FTP operation doesn't fail.
	 *
	 * @param $path string The full path to a directory or file
	 */
	private function fixPermissions($path)
	{
		// Turn off error reporting
		if (!defined('KSDEBUG'))
		{
			$oldErrorReporting = @error_reporting(E_NONE);
		}

		// Get UNIX style paths
		$relPath  = str_replace('\\', '/', $path);
		$basePath = rtrim(str_replace('\\', '/', KSROOTDIR), '/');
		$basePath = rtrim($basePath, '/');

		if (!empty($basePath))
		{
			$basePath .= '/';
		}

		// Remove the leading relative root
		if (substr($relPath, 0, strlen($basePath)) == $basePath)
		{
			$relPath = substr($relPath, strlen($basePath));
		}

		$dirArray  = explode('/', $relPath);
		$pathBuilt = rtrim($basePath, '/');

		foreach ($dirArray as $dir)
		{
			if (empty($dir))
			{
				continue;
			}

			$oldPath = $pathBuilt;
			$pathBuilt .= '/' . $dir;

			if (is_dir($oldPath . $dir))
			{
				$trustMeIKnowWhatImDoing = 500 + 10 + 1; // working around overzealous scanners written by bozos
				@chmod($oldPath . $dir, $trustMeIKnowWhatImDoing);
			}
			else
			{
				$trustMeIKnowWhatImDoing = 500 + 10 + 1; // working around overzealous scanners written by bozos
				if (@chmod($oldPath . $dir, $trustMeIKnowWhatImDoing) === false)
				{
					@unlink($oldPath . $dir);
				}
			}
		}

		// Restore error reporting
		if (!defined('KSDEBUG'))
		{
			@error_reporting($oldErrorReporting);
		}
	}

	/**
	 * Called after unserialisation, tries to reconnect to FTP
	 */
	function __wakeup()
	{
		if ($this->useFTP)
		{
			$this->connect();
		}
	}

	function __destruct()
	{
		if (!$this->useFTP)
		{
			@ftp_close($this->handle);
		}
	}

	/**
	 * Post-process an extracted file, using FTP or direct file writes to move it
	 *
	 * @return bool
	 */
	public function process()
	{
		if (is_null($this->tempFilename))
		{
			// If an empty filename is passed, it means that we shouldn't do any post processing, i.e.
			// the entity was a directory or symlink
			return true;
		}

		$remotePath = dirname($this->filename);
		$removePath = AKFactory::get('kickstart.setup.destdir', '');
		$root       = rtrim($removePath, '/\\');

		if (!empty($removePath))
		{
			$removePath = ltrim($removePath, "/");
			$remotePath = ltrim($remotePath, "/");
			$left       = substr($remotePath, 0, strlen($removePath));

			if ($left == $removePath)
			{
				$remotePath = substr($remotePath, strlen($removePath));
			}
		}

		$absoluteFSPath  = dirname($this->filename);
		$relativeFTPPath = trim($remotePath, '/');
		$absoluteFTPPath = '/' . trim($this->dir, '/') . '/' . trim($remotePath, '/');
		$onlyFilename    = basename($this->filename);

		$remoteName = $absoluteFTPPath . '/' . $onlyFilename;

		// Does the directory exist?
		if (!is_dir($root . '/' . $absoluteFSPath))
		{
			$ret = $this->createDirRecursive($absoluteFSPath, 0755);

			if (($ret === false) && ($this->useFTP))
			{
				$ret = @ftp_chdir($this->handle, $absoluteFTPPath);
			}

			if ($ret === false)
			{
				$this->setError(AKText::sprintf('FTP_COULDNT_UPLOAD', $this->filename));

				return false;
			}
		}

		if ($this->useFTP)
		{
			$ret = @ftp_chdir($this->handle, $absoluteFTPPath);
		}

		// Try copying directly
		$ret = @copy($this->tempFilename, $root . '/' . $this->filename);

		if ($ret === false)
		{
			$this->fixPermissions($this->filename);
			$this->unlink($this->filename);

			$ret = @copy($this->tempFilename, $root . '/' . $this->filename);
		}

		if ($this->useFTP && ($ret === false))
		{
			$ret = @ftp_put($this->handle, $remoteName, $this->tempFilename, FTP_BINARY);

			if ($ret === false)
			{
				// If we couldn't create the file, attempt to fix the permissions in the PHP level and retry!
				$this->fixPermissions($this->filename);
				$this->unlink($this->filename);

				$fp = @fopen($this->tempFilename, 'rb');
				if ($fp !== false)
				{
					$ret = @ftp_fput($this->handle, $remoteName, $fp, FTP_BINARY);
					@fclose($fp);
				}
				else
				{
					$ret = false;
				}
			}
		}

		@unlink($this->tempFilename);

		if ($ret === false)
		{
			$this->setError(AKText::sprintf('FTP_COULDNT_UPLOAD', $this->filename));

			return false;
		}

		$restorePerms = AKFactory::get('kickstart.setup.restoreperms', false);
		$perms        = $restorePerms ? $this->perms : 0644;

		$ret = @chmod($root . '/' . $this->filename, $perms);

		if ($this->useFTP && ($ret === false))
		{
			@ftp_chmod($this->_handle, $perms, $remoteName);
		}

		return true;
	}

	public function unlink($file)
	{
		$ret = @unlink($file);

		if (!$ret && $this->useFTP)
		{
			$removePath = AKFactory::get('kickstart.setup.destdir', '');
			if (!empty($removePath))
			{
				$left = substr($file, 0, strlen($removePath));
				if ($left == $removePath)
				{
					$file = substr($file, strlen($removePath));
				}
			}

			$check = '/' . trim($this->dir, '/') . '/' . trim($file, '/');

			$ret = @ftp_delete($this->handle, $check);
		}

		return $ret;
	}

	/**
	 * Create a temporary filename
	 *
	 * @param string $filename The original filename
	 * @param int    $perms    The file permissions
	 *
	 * @return string
	 */
	public function processFilename($filename, $perms = 0755)
	{
		// Catch some error conditions...
		if ($this->getError())
		{
			return false;
		}

		// If a null filename is passed, it means that we shouldn't do any post processing, i.e.
		// the entity was a directory or symlink
		if (is_null($filename))
		{
			$this->filename     = null;
			$this->tempFilename = null;

			return null;
		}

		// Strip absolute filesystem path to website's root
		$removePath = AKFactory::get('kickstart.setup.destdir', '');

		if (!empty($removePath))
		{
			$left = substr($filename, 0, strlen($removePath));

			if ($left == $removePath)
			{
				$filename = substr($filename, strlen($removePath));
			}
		}

		// Trim slash on the left
		$filename = ltrim($filename, '/');

		$this->filename     = $filename;
		$this->tempFilename = tempnam($this->tempDir, 'kickstart-');
		$this->perms        = $perms;

		if (empty($this->tempFilename))
		{
			// Oops! Let's try something different
			$this->tempFilename = $this->tempDir . '/kickstart-' . time() . '.dat';
		}

		return $this->tempFilename;
	}

	/**
	 * Closes the FTP connection
	 */
	public function close()
	{
		if (!$this->useFTP)
		{
			@ftp_close($this->handle);
		}
	}

	public function chmod($file, $perms)
	{
		if (AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			return true;
		}

		$ret = @chmod($file, $perms);

		if (!$ret && $this->useFTP)
		{
			// Strip absolute filesystem path to website's root
			$removePath = AKFactory::get('kickstart.setup.destdir', '');

			if (!empty($removePath))
			{
				$left = substr($file, 0, strlen($removePath));

				if ($left == $removePath)
				{
					$file = substr($file, strlen($removePath));
				}
			}

			// Trim slash on the left
			$file = ltrim($file, '/');

			$ret = @ftp_chmod($this->handle, $perms, $file);
		}

		return $ret;
	}

	public function rmdir($directory)
	{
		$ret = @rmdir($directory);

		if (!$ret && $this->useFTP)
		{
			$removePath = AKFactory::get('kickstart.setup.destdir', '');
			if (!empty($removePath))
			{
				$left = substr($directory, 0, strlen($removePath));
				if ($left == $removePath)
				{
					$directory = substr($directory, strlen($removePath));
				}
			}

			$check = '/' . trim($this->dir, '/') . '/' . trim($directory, '/');

			$ret = @ftp_rmdir($this->handle, $check);
		}

		return $ret;
	}

	public function rename($from, $to)
	{
		$ret = @rename($from, $to);

		if (!$ret && $this->useFTP)
		{
			$originalFrom = $from;
			$originalTo   = $to;

			$removePath = AKFactory::get('kickstart.setup.destdir', '');
			if (!empty($removePath))
			{
				$left = substr($from, 0, strlen($removePath));
				if ($left == $removePath)
				{
					$from = substr($from, strlen($removePath));
				}
			}
			$from = '/' . trim($this->dir, '/') . '/' . trim($from, '/');

			if (!empty($removePath))
			{
				$left = substr($to, 0, strlen($removePath));
				if ($left == $removePath)
				{
					$to = substr($to, strlen($removePath));
				}
			}
			$to = '/' . trim($this->dir, '/') . '/' . trim($to, '/');

			$ret = @ftp_rename($this->handle, $from, $to);
		}

		return $ret;
	}
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * JPA archive extraction class
 */
class AKUnarchiverJPA extends AKAbstractUnarchiver
{
	protected $archiveHeaderData = array();

	protected function readArchiveHeader()
	{
		debugMsg('Preparing to read archive header');
		// Initialize header data array
		$this->archiveHeaderData = new stdClass();

		// Open the first part
		debugMsg('Opening the first part');
		$this->nextFile();

		// Fail for unreadable files
		if ($this->fp === false)
		{
			debugMsg('Could not open the first part');

			return false;
		}

		// Read the signature
		$sig = fread($this->fp, 3);

		if ($sig != 'JPA')
		{
			// Not a JPA file
			debugMsg('Invalid archive signature');
			$this->setError(AKText::_('ERR_NOT_A_JPA_FILE'));

			return false;
		}

		// Read and parse header length
		$header_length_array = unpack('v', fread($this->fp, 2));
		$header_length       = $header_length_array[1];

		// Read and parse the known portion of header data (14 bytes)
		$bin_data    = fread($this->fp, 14);
		$header_data = unpack('Cmajor/Cminor/Vcount/Vuncsize/Vcsize', $bin_data);

		// Load any remaining header data (forward compatibility)
		$rest_length = $header_length - 19;

		if ($rest_length > 0)
		{
			$junk = fread($this->fp, $rest_length);
		}
		else
		{
			$junk = '';
		}

		// Temporary array with all the data we read
		$temp = array(
			'signature'        => $sig,
			'length'           => $header_length,
			'major'            => $header_data['major'],
			'minor'            => $header_data['minor'],
			'filecount'        => $header_data['count'],
			'uncompressedsize' => $header_data['uncsize'],
			'compressedsize'   => $header_data['csize'],
			'unknowndata'      => $junk
		);

		// Array-to-object conversion
		foreach ($temp as $key => $value)
		{
			$this->archiveHeaderData->{$key} = $value;
		}

		debugMsg('Header data:');
		debugMsg('Length              : ' . $header_length);
		debugMsg('Major               : ' . $header_data['major']);
		debugMsg('Minor               : ' . $header_data['minor']);
		debugMsg('File count          : ' . $header_data['count']);
		debugMsg('Uncompressed size   : ' . $header_data['uncsize']);
		debugMsg('Compressed size	  : ' . $header_data['csize']);

		$this->currentPartOffset = @ftell($this->fp);

		$this->dataReadLength = 0;

		return true;
	}

	/**
	 * Concrete classes must use this method to read the file header
	 *
	 * @return bool True if reading the file was successful, false if an error occured or we reached end of archive
	 */
	protected function readFileHeader()
	{
		// If the current part is over, proceed to the next part please
		if ($this->isEOF(true))
		{
			debugMsg('Archive part EOF; moving to next file');
			$this->nextFile();
		}

		$this->currentPartOffset = ftell($this->fp);

		debugMsg("Reading file signature; part {$this->currentPartNumber}, offset {$this->currentPartOffset}");
		// Get and decode Entity Description Block
		$signature = fread($this->fp, 3);

		$this->fileHeader            = new stdClass();
		$this->fileHeader->timestamp = 0;

		// Check signature
		if ($signature != 'JPF')
		{
			if ($this->isEOF(true))
			{
				// This file is finished; make sure it's the last one
				$this->nextFile();

				if (!$this->isEOF(false))
				{
					debugMsg('Invalid file signature before end of archive encountered');
					$this->setError(AKText::sprintf('INVALID_FILE_HEADER', $this->currentPartNumber, $this->currentPartOffset));

					return false;
				}

				// We're just finished
				return false;
			}
			else
			{
				$screwed = true;

				if (AKFactory::get('kickstart.setup.ignoreerrors', false))
				{
					debugMsg('Invalid file block signature; launching heuristic file block signature scanner');
					$screwed = !$this->heuristicFileHeaderLocator();

					if (!$screwed)
					{
						$signature = 'JPF';
					}
					else
					{
						debugMsg('Heuristics failed. Brace yourself for the imminent crash.');
					}
				}

				if ($screwed)
				{
					debugMsg('Invalid file block signature');
					// This is not a file block! The archive is corrupt.
					$this->setError(AKText::sprintf('INVALID_FILE_HEADER', $this->currentPartNumber, $this->currentPartOffset));

					return false;
				}
			}
		}
		// This a JPA Entity Block. Process the header.

		$isBannedFile = false;

		// Read length of EDB and of the Entity Path Data
		$length_array = unpack('vblocksize/vpathsize', fread($this->fp, 4));
		// Read the path data
		if ($length_array['pathsize'] > 0)
		{
			$file = fread($this->fp, $length_array['pathsize']);
		}
		else
		{
			$file = '';
		}

		// Handle file renaming
		$isRenamed = false;
		if (is_array($this->renameFiles) && (count($this->renameFiles) > 0))
		{
			if (array_key_exists($file, $this->renameFiles))
			{
				$file      = $this->renameFiles[$file];
				$isRenamed = true;
			}
		}

		// Handle directory renaming
		$isDirRenamed = false;
		if (is_array($this->renameDirs) && (count($this->renameDirs) > 0))
		{
			if (array_key_exists(dirname($file), $this->renameDirs))
			{
				$file         = rtrim($this->renameDirs[dirname($file)], '/') . '/' . basename($file);
				$isRenamed    = true;
				$isDirRenamed = true;
			}
		}

		// Read and parse the known data portion
		$bin_data    = fread($this->fp, 14);
		$header_data = unpack('Ctype/Ccompression/Vcompsize/Vuncompsize/Vperms', $bin_data);
		// Read any unknown data
		$restBytes = $length_array['blocksize'] - (21 + $length_array['pathsize']);

		if ($restBytes > 0)
		{
			// Start reading the extra fields
			while ($restBytes >= 4)
			{
				$extra_header_data = fread($this->fp, 4);
				$extra_header      = unpack('vsignature/vlength', $extra_header_data);
				$restBytes -= 4;
				$extra_header['length'] -= 4;

				switch ($extra_header['signature'])
				{
					case 256:
						// File modified timestamp
						if ($extra_header['length'] > 0)
						{
							$bindata = fread($this->fp, $extra_header['length']);
							$restBytes -= $extra_header['length'];
							$timestamps                  = unpack('Vmodified', substr($bindata, 0, 4));
							$filectime                   = $timestamps['modified'];
							$this->fileHeader->timestamp = $filectime;
						}
						break;

					default:
						// Unknown field
						if ($extra_header['length'] > 0)
						{
							$junk = fread($this->fp, $extra_header['length']);
							$restBytes -= $extra_header['length'];
						}
						break;
				}
			}

			if ($restBytes > 0)
			{
				$junk = fread($this->fp, $restBytes);
			}
		}

		$compressionType = $header_data['compression'];

		// Populate the return array
		$this->fileHeader->file         = $file;
		$this->fileHeader->compressed   = $header_data['compsize'];
		$this->fileHeader->uncompressed = $header_data['uncompsize'];

		switch ($header_data['type'])
		{
			case 0:
				$this->fileHeader->type = 'dir';
				break;

			case 1:
				$this->fileHeader->type = 'file';
				break;

			case 2:
				$this->fileHeader->type = 'link';
				break;
		}

		switch ($compressionType)
		{
			case 0:
				$this->fileHeader->compression = 'none';
				break;
			case 1:
				$this->fileHeader->compression = 'gzip';
				break;
			case 2:
				$this->fileHeader->compression = 'bzip2';
				break;
		}

		$this->fileHeader->permissions = $header_data['perms'];

		// Find hard-coded banned files
		if ((basename($this->fileHeader->file) == ".") || (basename($this->fileHeader->file) == ".."))
		{
			$isBannedFile = true;
		}

		// Also try to find banned files passed in class configuration
		if ((count($this->skipFiles) > 0) && (!$isRenamed))
		{
			if (in_array($this->fileHeader->file, $this->skipFiles))
			{
				$isBannedFile = true;
			}
		}

		// If we have a banned file, let's skip it
		if ($isBannedFile)
		{
			debugMsg('Skipping file ' . $this->fileHeader->file);
			// Advance the file pointer, skipping exactly the size of the compressed data
			$seekleft = $this->fileHeader->compressed;
			while ($seekleft > 0)
			{
				// Ensure that we can seek past archive part boundaries
				$curSize = @filesize($this->archiveList[$this->currentPartNumber]);
				$curPos  = @ftell($this->fp);
				$canSeek = $curSize - $curPos;
				if ($canSeek > $seekleft)
				{
					$canSeek = $seekleft;
				}
				@fseek($this->fp, $canSeek, SEEK_CUR);
				$seekleft -= $canSeek;
				if ($seekleft)
				{
					$this->nextFile();
				}
			}

			$this->currentPartOffset = @ftell($this->fp);
			$this->runState          = AK_STATE_DONE;

			return true;
		}

		// Remove the removePath, if any
		$this->fileHeader->file = $this->removePath($this->fileHeader->file);

		// Last chance to prepend a path to the filename
		if (!empty($this->addPath) && !$isDirRenamed)
		{
			$this->fileHeader->file = $this->addPath . $this->fileHeader->file;
		}

		// Get the translated path name
		$restorePerms = AKFactory::get('kickstart.setup.restoreperms', false);
		if ($this->fileHeader->type == 'file')
		{
			// Regular file; ask the postproc engine to process its filename
			if ($restorePerms)
			{
				$this->fileHeader->realFile =
					$this->postProcEngine->processFilename($this->fileHeader->file, $this->fileHeader->permissions);
			}
			else
			{
				$this->fileHeader->realFile = $this->postProcEngine->processFilename($this->fileHeader->file);
			}
		}
		elseif ($this->fileHeader->type == 'dir')
		{
			$dir = $this->fileHeader->file;

			// Directory; just create it
			if ($restorePerms)
			{
				$this->postProcEngine->createDirRecursive($this->fileHeader->file, $this->fileHeader->permissions);
			}
			else
			{
				$this->postProcEngine->createDirRecursive($this->fileHeader->file, 0755);
			}
			$this->postProcEngine->processFilename(null);
		}
		else
		{
			// Symlink; do not post-process
			$this->postProcEngine->processFilename(null);
		}

		$this->createDirectory();

		// Header is read
		$this->runState = AK_STATE_HEADER;

		$this->dataReadLength = 0;

		return true;
	}

	protected function heuristicFileHeaderLocator()
	{
		$ret     = false;
		$fullEOF = false;

		while (!$ret && !$fullEOF)
		{
			$this->currentPartOffset = @ftell($this->fp);

			if ($this->isEOF(true))
			{
				$this->nextFile();
			}

			if ($this->isEOF(false))
			{
				$fullEOF = true;
				continue;
			}

			// Read 512Kb
			$chunk     = fread($this->fp, 524288);
			$size_read = mb_strlen($chunk, '8bit');
			//$pos = strpos($chunk, 'JPF');
			$pos = mb_strpos($chunk, 'JPF', 0, '8bit');

			if ($pos !== false)
			{
				// We found it!
				$this->currentPartOffset += $pos + 3;
				@fseek($this->fp, $this->currentPartOffset, SEEK_SET);
				$ret = true;
			}
			else
			{
				// Not yet found :(
				$this->currentPartOffset = @ftell($this->fp);
			}
		}

		return $ret;
	}

	/**
	 * Creates the directory this file points to
	 */
	protected function createDirectory()
	{
		if (AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			return true;
		}

		// Do we need to create a directory?
		if (empty($this->fileHeader->realFile))
		{
			$this->fileHeader->realFile = $this->fileHeader->file;
		}

		$lastSlash = strrpos($this->fileHeader->realFile, '/');
		$dirName   = substr($this->fileHeader->realFile, 0, $lastSlash);
		$perms     = $this->flagRestorePermissions ? $this->fileHeader->permissions : 0755;
		$ignore    = AKFactory::get('kickstart.setup.ignoreerrors', false) || $this->isIgnoredDirectory($dirName);

		if (($this->postProcEngine->createDirRecursive($dirName, $perms) == false) && (!$ignore))
		{
			$this->setError(AKText::sprintf('COULDNT_CREATE_DIR', $dirName));

			return false;
		}
		else
		{
			return true;
		}
	}

	/**
	 * Concrete classes must use this method to process file data. It must set $runState to AK_STATE_DATAREAD when
	 * it's finished processing the file data.
	 *
	 * @return bool True if processing the file data was successful, false if an error occured
	 */
	protected function processFileData()
	{
		switch ($this->fileHeader->type)
		{
			case 'dir':
				return $this->processTypeDir();
				break;

			case 'link':
				return $this->processTypeLink();
				break;

			case 'file':
				switch ($this->fileHeader->compression)
				{
					case 'none':
						return $this->processTypeFileUncompressed();
						break;

					case 'gzip':
					case 'bzip2':
						return $this->processTypeFileCompressedSimple();
						break;

				}
				break;

			default:
				debugMsg('Unknown file type ' . $this->fileHeader->type);
				break;
		}
	}

	/**
	 * Process the file data of a directory entry
	 *
	 * @return bool
	 */
	private function processTypeDir()
	{
		// Directory entries in the JPA do not have file data, therefore we're done processing the entry
		$this->runState = AK_STATE_DATAREAD;

		return true;
	}

	/**
	 * Process the file data of a link entry
	 *
	 * @return bool
	 */
	private function processTypeLink()
	{
		$readBytes   = 0;
		$toReadBytes = 0;
		$leftBytes   = $this->fileHeader->compressed;
		$data        = '';

		while ($leftBytes > 0)
		{
			$toReadBytes     = ($leftBytes > $this->chunkSize) ? $this->chunkSize : $leftBytes;
			$mydata          = $this->fread($this->fp, $toReadBytes);
			$reallyReadBytes = akstringlen($mydata);
			$data .= $mydata;
			$leftBytes -= $reallyReadBytes;

			if ($reallyReadBytes < $toReadBytes)
			{
				// We read less than requested! Why? Did we hit local EOF?
				if ($this->isEOF(true) && !$this->isEOF(false))
				{
					// Yeap. Let's go to the next file
					$this->nextFile();
				}
				else
				{
					debugMsg('End of local file before reading all data with no more parts left. The archive is corrupt or truncated.');
					// Nope. The archive is corrupt
					$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));

					return false;
				}
			}
		}

		$filename = isset($this->fileHeader->realFile) ? $this->fileHeader->realFile : $this->fileHeader->file;

		if (!AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			// Try to remove an existing file or directory by the same name
			if (file_exists($filename))
			{
				@unlink($filename);
				@rmdir($filename);
			}

			// Remove any trailing slash
			if (substr($filename, -1) == '/')
			{
				$filename = substr($filename, 0, -1);
			}
			// Create the symlink - only possible within PHP context. There's no support built in the FTP protocol, so no postproc use is possible here :(
			@symlink($data, $filename);
		}

		$this->runState = AK_STATE_DATAREAD;

		return true; // No matter if the link was created!
	}

	private function processTypeFileUncompressed()
	{
		// Uncompressed files are being processed in small chunks, to avoid timeouts
		if (($this->dataReadLength == 0) && !AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			// Before processing file data, ensure permissions are adequate
			$this->setCorrectPermissions($this->fileHeader->file);
		}

		// Open the output file
		if (!AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			$ignore =
				AKFactory::get('kickstart.setup.ignoreerrors', false) || $this->isIgnoredDirectory($this->fileHeader->file);

			if ($this->dataReadLength == 0)
			{
				$outfp = @fopen($this->fileHeader->realFile, 'wb');
			}
			else
			{
				$outfp = @fopen($this->fileHeader->realFile, 'ab');
			}

			// Can we write to the file?
			if (($outfp === false) && (!$ignore))
			{
				// An error occured
				debugMsg('Could not write to output file');
				$this->setError(AKText::sprintf('COULDNT_WRITE_FILE', $this->fileHeader->realFile));

				return false;
			}
		}

		// Does the file have any data, at all?
		if ($this->fileHeader->compressed == 0)
		{
			// No file data!
			if (!AKFactory::get('kickstart.setup.dryrun', '0') && is_resource($outfp))
			{
				@fclose($outfp);
			}

			$this->runState = AK_STATE_DATAREAD;

			return true;
		}

		// Reference to the global timer
		$timer = AKFactory::getTimer();

		$toReadBytes = 0;
		$leftBytes   = $this->fileHeader->compressed - $this->dataReadLength;

		// Loop while there's data to read and enough time to do it
		while (($leftBytes > 0) && ($timer->getTimeLeft() > 0))
		{
			$toReadBytes     = ($leftBytes > $this->chunkSize) ? $this->chunkSize : $leftBytes;
			$data            = $this->fread($this->fp, $toReadBytes);
			$reallyReadBytes = akstringlen($data);
			$leftBytes -= $reallyReadBytes;
			$this->dataReadLength += $reallyReadBytes;

			if ($reallyReadBytes < $toReadBytes)
			{
				// We read less than requested! Why? Did we hit local EOF?
				if ($this->isEOF(true) && !$this->isEOF(false))
				{
					// Yeap. Let's go to the next file
					$this->nextFile();
				}
				else
				{
					// Nope. The archive is corrupt
					debugMsg('Not enough data in file. The archive is truncated or corrupt.');
					$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));

					return false;
				}
			}

			if (!AKFactory::get('kickstart.setup.dryrun', '0'))
			{
				if (is_resource($outfp))
				{
					@fwrite($outfp, $data);
				}
			}
		}

		// Close the file pointer
		if (!AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			if (is_resource($outfp))
			{
				@fclose($outfp);
			}
		}

		// Was this a pre-timeout bail out?
		if ($leftBytes > 0)
		{
			$this->runState = AK_STATE_DATA;
		}
		else
		{
			// Oh! We just finished!
			$this->runState       = AK_STATE_DATAREAD;
			$this->dataReadLength = 0;
		}

		return true;
	}

	private function processTypeFileCompressedSimple()
	{
		if (!AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			// Before processing file data, ensure permissions are adequate
			$this->setCorrectPermissions($this->fileHeader->file);

			// Open the output file
			$outfp = @fopen($this->fileHeader->realFile, 'wb');

			// Can we write to the file?
			$ignore =
				AKFactory::get('kickstart.setup.ignoreerrors', false) || $this->isIgnoredDirectory($this->fileHeader->file);

			if (($outfp === false) && (!$ignore))
			{
				// An error occured
				debugMsg('Could not write to output file');
				$this->setError(AKText::sprintf('COULDNT_WRITE_FILE', $this->fileHeader->realFile));

				return false;
			}
		}

		// Does the file have any data, at all?
		if ($this->fileHeader->compressed == 0)
		{
			// No file data!
			if (!AKFactory::get('kickstart.setup.dryrun', '0'))
			{
				if (is_resource($outfp))
				{
					@fclose($outfp);
				}
			}
			$this->runState = AK_STATE_DATAREAD;

			return true;
		}

		// Simple compressed files are processed as a whole; we can't do chunk processing
		$zipData = $this->fread($this->fp, $this->fileHeader->compressed);
		while (akstringlen($zipData) < $this->fileHeader->compressed)
		{
			// End of local file before reading all data, but have more archive parts?
			if ($this->isEOF(true) && !$this->isEOF(false))
			{
				// Yeap. Read from the next file
				$this->nextFile();
				$bytes_left = $this->fileHeader->compressed - akstringlen($zipData);
				$zipData .= $this->fread($this->fp, $bytes_left);
			}
			else
			{
				debugMsg('End of local file before reading all data with no more parts left. The archive is corrupt or truncated.');
				$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));

				return false;
			}
		}

		if ($this->fileHeader->compression == 'gzip')
		{
			$unzipData = gzinflate($zipData);
		}
		elseif ($this->fileHeader->compression == 'bzip2')
		{
			$unzipData = bzdecompress($zipData);
		}
		unset($zipData);

		// Write to the file.
		if (!AKFactory::get('kickstart.setup.dryrun', '0') && is_resource($outfp))
		{
			@fwrite($outfp, $unzipData, $this->fileHeader->uncompressed);
			@fclose($outfp);
		}
		unset($unzipData);

		$this->runState = AK_STATE_DATAREAD;

		return true;
	}
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * ZIP archive extraction class
 *
 * Since the file data portion of ZIP and JPA are similarly structured (it's empty for dirs,
 * linked node name for symlinks, dumped binary data for no compressions and dumped gzipped
 * binary data for gzip compression) we just have to subclass AKUnarchiverJPA and change the
 * header reading bits. Reusable code ;)
 */
class AKUnarchiverZIP extends AKUnarchiverJPA
{
	var $expectDataDescriptor = false;

	protected function readArchiveHeader()
	{
		debugMsg('Preparing to read archive header');
		// Initialize header data array
		$this->archiveHeaderData = new stdClass();

		// Open the first part
		debugMsg('Opening the first part');
		$this->nextFile();

		// Fail for unreadable files
		if ($this->fp === false)
		{
			debugMsg('The first part is not readable');

			return false;
		}

		// Read a possible multipart signature
		$sigBinary  = fread($this->fp, 4);
		$headerData = unpack('Vsig', $sigBinary);

		// Roll back if it's not a multipart archive
		if ($headerData['sig'] == 0x04034b50)
		{
			debugMsg('The archive is not multipart');
			fseek($this->fp, -4, SEEK_CUR);
		}
		else
		{
			debugMsg('The archive is multipart');
		}

		$multiPartSigs = array(
			0x08074b50,        // Multi-part ZIP
			0x30304b50,        // Multi-part ZIP (alternate)
			0x04034b50        // Single file
		);
		if (!in_array($headerData['sig'], $multiPartSigs))
		{
			debugMsg('Invalid header signature ' . dechex($headerData['sig']));
			$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));

			return false;
		}

		$this->currentPartOffset = @ftell($this->fp);
		debugMsg('Current part offset after reading header: ' . $this->currentPartOffset);

		$this->dataReadLength = 0;

		return true;
	}

	/**
	 * Concrete classes must use this method to read the file header
	 *
	 * @return bool True if reading the file was successful, false if an error occured or we reached end of archive
	 */
	protected function readFileHeader()
	{
		// If the current part is over, proceed to the next part please
		if ($this->isEOF(true))
		{
			debugMsg('Opening next archive part');
			$this->nextFile();
		}

		$this->currentPartOffset = ftell($this->fp);

		if ($this->expectDataDescriptor)
		{
			// The last file had bit 3 of the general purpose bit flag set. This means that we have a
			// 12 byte data descriptor we need to skip. To make things worse, there might also be a 4
			// byte optional data descriptor header (0x08074b50).
			$junk = @fread($this->fp, 4);
			$junk = unpack('Vsig', $junk);
			if ($junk['sig'] == 0x08074b50)
			{
				// Yes, there was a signature
				$junk = @fread($this->fp, 12);
				debugMsg('Data descriptor (w/ header) skipped at ' . (ftell($this->fp) - 12));
			}
			else
			{
				// No, there was no signature, just read another 8 bytes
				$junk = @fread($this->fp, 8);
				debugMsg('Data descriptor (w/out header) skipped at ' . (ftell($this->fp) - 8));
			}

			// And check for EOF, too
			if ($this->isEOF(true))
			{
				debugMsg('EOF before reading header');

				$this->nextFile();
			}
		}

		// Get and decode Local File Header
		$headerBinary = fread($this->fp, 30);
		$headerData   =
			unpack('Vsig/C2ver/vbitflag/vcompmethod/vlastmodtime/vlastmoddate/Vcrc/Vcompsize/Vuncomp/vfnamelen/veflen', $headerBinary);

		// Check signature
		if (!($headerData['sig'] == 0x04034b50))
		{
			debugMsg('Not a file signature at ' . (ftell($this->fp) - 4));

			// The signature is not the one used for files. Is this a central directory record (i.e. we're done)?
			if ($headerData['sig'] == 0x02014b50)
			{
				debugMsg('EOCD signature at ' . (ftell($this->fp) - 4));
				// End of ZIP file detected. We'll just skip to the end of file...
				while ($this->nextFile())
				{
				};
				@fseek($this->fp, 0, SEEK_END); // Go to EOF
				return false;
			}
			else
			{
				debugMsg('Invalid signature ' . dechex($headerData['sig']) . ' at ' . ftell($this->fp));
				$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));

				return false;
			}
		}

		// If bit 3 of the bitflag is set, expectDataDescriptor is true
		$this->expectDataDescriptor = ($headerData['bitflag'] & 4) == 4;

		$this->fileHeader            = new stdClass();
		$this->fileHeader->timestamp = 0;

		// Read the last modified data and time
		$lastmodtime = $headerData['lastmodtime'];
		$lastmoddate = $headerData['lastmoddate'];

		if ($lastmoddate && $lastmodtime)
		{
			// ----- Extract time
			$v_hour    = ($lastmodtime & 0xF800) >> 11;
			$v_minute  = ($lastmodtime & 0x07E0) >> 5;
			$v_seconde = ($lastmodtime & 0x001F) * 2;

			// ----- Extract date
			$v_year  = (($lastmoddate & 0xFE00) >> 9) + 1980;
			$v_month = ($lastmoddate & 0x01E0) >> 5;
			$v_day   = $lastmoddate & 0x001F;

			// ----- Get UNIX date format
			$this->fileHeader->timestamp = @mktime($v_hour, $v_minute, $v_seconde, $v_month, $v_day, $v_year);
		}

		$isBannedFile = false;

		$this->fileHeader->compressed   = $headerData['compsize'];
		$this->fileHeader->uncompressed = $headerData['uncomp'];
		$nameFieldLength                = $headerData['fnamelen'];
		$extraFieldLength               = $headerData['eflen'];

		// Read filename field
		$this->fileHeader->file = fread($this->fp, $nameFieldLength);

		// Handle file renaming
		$isRenamed = false;
		if (is_array($this->renameFiles) && (count($this->renameFiles) > 0))
		{
			if (array_key_exists($this->fileHeader->file, $this->renameFiles))
			{
				$this->fileHeader->file = $this->renameFiles[$this->fileHeader->file];
				$isRenamed              = true;
			}
		}

		// Handle directory renaming
		$isDirRenamed = false;
		if (is_array($this->renameDirs) && (count($this->renameDirs) > 0))
		{
			if (array_key_exists(dirname($this->fileHeader->file), $this->renameDirs))
			{
				$file         =
					rtrim($this->renameDirs[dirname($this->fileHeader->file)], '/') . '/' . basename($this->fileHeader->file);
				$isRenamed    = true;
				$isDirRenamed = true;
			}
		}

		// Read extra field if present
		if ($extraFieldLength > 0)
		{
			$extrafield = fread($this->fp, $extraFieldLength);
		}

		debugMsg('*' . ftell($this->fp) . ' IS START OF ' . $this->fileHeader->file . ' (' . $this->fileHeader->compressed . ' bytes)');


		// Decide filetype -- Check for directories
		$this->fileHeader->type = 'file';
		if (strrpos($this->fileHeader->file, '/') == strlen($this->fileHeader->file) - 1)
		{
			$this->fileHeader->type = 'dir';
		}
		// Decide filetype -- Check for symbolic links
		if (($headerData['ver1'] == 10) && ($headerData['ver2'] == 3))
		{
			$this->fileHeader->type = 'link';
		}

		switch ($headerData['compmethod'])
		{
			case 0:
				$this->fileHeader->compression = 'none';
				break;
			case 8:
				$this->fileHeader->compression = 'gzip';
				break;
		}

		// Find hard-coded banned files
		if ((basename($this->fileHeader->file) == ".") || (basename($this->fileHeader->file) == ".."))
		{
			$isBannedFile = true;
		}

		// Also try to find banned files passed in class configuration
		if ((count($this->skipFiles) > 0) && (!$isRenamed))
		{
			if (in_array($this->fileHeader->file, $this->skipFiles))
			{
				$isBannedFile = true;
			}
		}

		// If we have a banned file, let's skip it
		if ($isBannedFile)
		{
			// Advance the file pointer, skipping exactly the size of the compressed data
			$seekleft = $this->fileHeader->compressed;
			while ($seekleft > 0)
			{
				// Ensure that we can seek past archive part boundaries
				$curSize = @filesize($this->archiveList[$this->currentPartNumber]);
				$curPos  = @ftell($this->fp);
				$canSeek = $curSize - $curPos;
				if ($canSeek > $seekleft)
				{
					$canSeek = $seekleft;
				}
				@fseek($this->fp, $canSeek, SEEK_CUR);
				$seekleft -= $canSeek;
				if ($seekleft)
				{
					$this->nextFile();
				}
			}

			$this->currentPartOffset = @ftell($this->fp);
			$this->runState          = AK_STATE_DONE;

			return true;
		}

		// Remove the removePath, if any
		$this->fileHeader->file = $this->removePath($this->fileHeader->file);

		// Last chance to prepend a path to the filename
		if (!empty($this->addPath) && !$isDirRenamed)
		{
			$this->fileHeader->file = $this->addPath . $this->fileHeader->file;
		}

		// Get the translated path name
		if ($this->fileHeader->type == 'file')
		{
			$this->fileHeader->realFile = $this->postProcEngine->processFilename($this->fileHeader->file);
		}
		elseif ($this->fileHeader->type == 'dir')
		{
			$this->fileHeader->timestamp = 0;

			$dir = $this->fileHeader->file;

			$this->postProcEngine->createDirRecursive($this->fileHeader->file, 0755);
			$this->postProcEngine->processFilename(null);
		}
		else
		{
			// Symlink; do not post-process
			$this->fileHeader->timestamp = 0;
			$this->postProcEngine->processFilename(null);
		}

		$this->createDirectory();

		// Header is read
		$this->runState = AK_STATE_HEADER;

		return true;
	}

}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * JPS archive extraction class
 */
class AKUnarchiverJPS extends AKUnarchiverJPA
{
	/**
	 * Header data for the archive
	 *
	 * @var   array
	 */
	protected $archiveHeaderData = array();

	/**
	 * Plaintext password from which the encryption key will be derived with PBKDF2
	 *
	 * @var   string
	 */
	protected $password = '';

	/**
	 * Which hash algorithm should I use for key derivation with PBKDF2.
	 *
	 * @var   string
	 */
	private $pbkdf2Algorithm = 'sha1';

	/**
	 * How many iterations should I use for key derivation with PBKDF2
	 *
	 * @var   int
	 */
	private $pbkdf2Iterations = 1000;

	/**
	 * Should I use a static salt for key derivation with PBKDF2?
	 *
	 * @var   bool
	 */
	private $pbkdf2UseStaticSalt = 0;

	/**
	 * Static salt for key derivation with PBKDF2
	 *
	 * @var   string
	 */
	private $pbkdf2StaticSalt = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";

	/**
	 * How much compressed data I have read since the last file header read
	 *
	 * @var   int
	 */
	private $compressedSizeReadSinceLastFileHeader = 0;

	public function __construct()
	{
		parent::__construct();

		$this->password = AKFactory::get('kickstart.jps.password', '');
	}

	public function __wakeup()
	{
		parent::__wakeup();

		// Make sure the decryption is all set up (required!)
		AKEncryptionAES::setPbkdf2Algorithm($this->pbkdf2Algorithm);
		AKEncryptionAES::setPbkdf2Iterations($this->pbkdf2Iterations);
		AKEncryptionAES::setPbkdf2UseStaticSalt($this->pbkdf2UseStaticSalt);
		AKEncryptionAES::setPbkdf2StaticSalt($this->pbkdf2StaticSalt);
	}


	protected function readArchiveHeader()
	{
		// Initialize header data array
		$this->archiveHeaderData = new stdClass();

		// Open the first part
		$this->nextFile();

		// Fail for unreadable files
		if ($this->fp === false)
		{
			return false;
		}

		// Read the signature
		$sig = fread($this->fp, 3);

		if ($sig != 'JPS')
		{
			// Not a JPA file
			$this->setError(AKText::_('ERR_NOT_A_JPS_FILE'));

			return false;
		}

		// Read and parse the known portion of header data (5 bytes)
		$bin_data    = fread($this->fp, 5);
		$header_data = unpack('Cmajor/Cminor/cspanned/vextra', $bin_data);

		// Is this a v2 archive?
		$versionHumanReadable = $header_data['major'] . '.' . $header_data['minor'];
		$isV2Archive = version_compare($versionHumanReadable, '2.0', 'ge');

		// Load any remaining header data
		$rest_length = $header_data['extra'];

		if ($isV2Archive && $rest_length)
		{
			// V2 archives only have one kind of extra header
			if (!$this->readKeyExpansionExtraHeader())
			{
				return false;
			}
		}
		elseif ($rest_length > 0)
		{
			$junk = fread($this->fp, $rest_length);
		}

		// Temporary array with all the data we read
		$temp = array(
			'signature' => $sig,
			'major'     => $header_data['major'],
			'minor'     => $header_data['minor'],
			'spanned'   => $header_data['spanned']
		);
		// Array-to-object conversion
		foreach ($temp as $key => $value)
		{
			$this->archiveHeaderData->{$key} = $value;
		}

		$this->currentPartOffset = @ftell($this->fp);

		$this->dataReadLength = 0;

		return true;
	}

	/**
	 * Concrete classes must use this method to read the file header
	 *
	 * @return bool True if reading the file was successful, false if an error occurred or we reached end of archive
	 */
	protected function readFileHeader()
	{
		// If the current part is over, proceed to the next part please
		if ($this->isEOF(true))
		{
			$this->nextFile();
		}

		$this->currentPartOffset = ftell($this->fp);

		// Get and decode Entity Description Block
		$signature = fread($this->fp, 3);

		// Check for end-of-archive siganture
		if ($signature == 'JPE')
		{
			$this->setState('postrun');

			return true;
		}

		$this->fileHeader            = new stdClass();
		$this->fileHeader->timestamp = 0;

		// Check signature
		if ($signature != 'JPF')
		{
			if ($this->isEOF(true))
			{
				// This file is finished; make sure it's the last one
				$this->nextFile();
				if (!$this->isEOF(false))
				{
					$this->setError(AKText::sprintf('INVALID_FILE_HEADER', $this->currentPartNumber, $this->currentPartOffset));

					return false;
				}

				// We're just finished
				return false;
			}
			else
			{
				fseek($this->fp, -6, SEEK_CUR);
				$signature = fread($this->fp, 3);
				if ($signature == 'JPE')
				{
					return false;
				}

				$this->setError(AKText::sprintf('INVALID_FILE_HEADER', $this->currentPartNumber, $this->currentPartOffset));

				return false;
			}
		}

		// This a JPS Entity Block. Process the header.

		$isBannedFile = false;

		// Make sure the decryption is all set up
		AKEncryptionAES::setPbkdf2Algorithm($this->pbkdf2Algorithm);
		AKEncryptionAES::setPbkdf2Iterations($this->pbkdf2Iterations);
		AKEncryptionAES::setPbkdf2UseStaticSalt($this->pbkdf2UseStaticSalt);
		AKEncryptionAES::setPbkdf2StaticSalt($this->pbkdf2StaticSalt);

		// Read and decrypt the header
		$edbhData = fread($this->fp, 4);
		$edbh     = unpack('vencsize/vdecsize', $edbhData);
		$bin_data = fread($this->fp, $edbh['encsize']);

		// Add the header length to the data read
		$this->compressedSizeReadSinceLastFileHeader += $edbh['encsize'] + 4;

		// Decrypt and truncate
		$bin_data = AKEncryptionAES::AESDecryptCBC($bin_data, $this->password);
		$bin_data = substr($bin_data, 0, $edbh['decsize']);

		// Read length of EDB and of the Entity Path Data
		$length_array = unpack('vpathsize', substr($bin_data, 0, 2));
		// Read the path data
		$file = substr($bin_data, 2, $length_array['pathsize']);

		// Handle file renaming
		$isRenamed = false;
		if (is_array($this->renameFiles) && (count($this->renameFiles) > 0))
		{
			if (array_key_exists($file, $this->renameFiles))
			{
				$file      = $this->renameFiles[$file];
				$isRenamed = true;
			}
		}

		// Handle directory renaming
		$isDirRenamed = false;
		if (is_array($this->renameDirs) && (count($this->renameDirs) > 0))
		{
			if (array_key_exists(dirname($file), $this->renameDirs))
			{
				$file         = rtrim($this->renameDirs[dirname($file)], '/') . '/' . basename($file);
				$isRenamed    = true;
				$isDirRenamed = true;
			}
		}

		// Read and parse the known data portion
		$bin_data    = substr($bin_data, 2 + $length_array['pathsize']);
		$header_data = unpack('Ctype/Ccompression/Vuncompsize/Vperms/Vfilectime', $bin_data);

		$this->fileHeader->timestamp = $header_data['filectime'];
		$compressionType             = $header_data['compression'];

		// Populate the return array
		$this->fileHeader->file         = $file;
		$this->fileHeader->uncompressed = $header_data['uncompsize'];
		switch ($header_data['type'])
		{
			case 0:
				$this->fileHeader->type = 'dir';
				break;

			case 1:
				$this->fileHeader->type = 'file';
				break;

			case 2:
				$this->fileHeader->type = 'link';
				break;
		}
		switch ($compressionType)
		{
			case 0:
				$this->fileHeader->compression = 'none';
				break;
			case 1:
				$this->fileHeader->compression = 'gzip';
				break;
			case 2:
				$this->fileHeader->compression = 'bzip2';
				break;
		}
		$this->fileHeader->permissions = $header_data['perms'];

		// Find hard-coded banned files
		if ((basename($this->fileHeader->file) == ".") || (basename($this->fileHeader->file) == ".."))
		{
			$isBannedFile = true;
		}

		// Also try to find banned files passed in class configuration
		if ((count($this->skipFiles) > 0) && (!$isRenamed))
		{
			if (in_array($this->fileHeader->file, $this->skipFiles))
			{
				$isBannedFile = true;
			}
		}

		// If we have a banned file, let's skip it
		if ($isBannedFile)
		{
			$done = false;
			while (!$done)
			{
				// Read the Data Chunk Block header
				$binMiniHead = fread($this->fp, 8);
				if (in_array(substr($binMiniHead, 0, 3), array('JPF', 'JPE')))
				{
					// Not a Data Chunk Block header, I am done skipping the file
					@fseek($this->fp, -8, SEEK_CUR); // Roll back the file pointer
					$done = true; // Mark as done
					continue; // Exit loop
				}
				else
				{
					// Skip forward by the amount of compressed data
					$miniHead = unpack('Vencsize/Vdecsize', $binMiniHead);
					@fseek($this->fp, $miniHead['encsize'], SEEK_CUR);
					$this->compressedSizeReadSinceLastFileHeader += 8 + $miniHead['encsize'];
				}
			}

			$this->currentPartOffset                     = @ftell($this->fp);
			$this->runState                              = AK_STATE_DONE;
			$this->fileHeader->compressed                = $this->compressedSizeReadSinceLastFileHeader;
			$this->compressedSizeReadSinceLastFileHeader = 0;

			return true;
		}

		// Remove the removePath, if any
		$this->fileHeader->file = $this->removePath($this->fileHeader->file);

		// Last chance to prepend a path to the filename
		if (!empty($this->addPath) && !$isDirRenamed)
		{
			$this->fileHeader->file = $this->addPath . $this->fileHeader->file;
		}

		// Get the translated path name
		$restorePerms = AKFactory::get('kickstart.setup.restoreperms', false);
		if ($this->fileHeader->type == 'file')
		{
			// Regular file; ask the postproc engine to process its filename
			if ($restorePerms)
			{
				$this->fileHeader->realFile =
					$this->postProcEngine->processFilename($this->fileHeader->file, $this->fileHeader->permissions);
			}
			else
			{
				$this->fileHeader->realFile = $this->postProcEngine->processFilename($this->fileHeader->file);
			}
		}
		elseif ($this->fileHeader->type == 'dir')
		{
			$dir                        = $this->fileHeader->file;
			$this->fileHeader->realFile = $dir;

			// Directory; just create it
			if ($restorePerms)
			{
				$this->postProcEngine->createDirRecursive($this->fileHeader->file, $this->fileHeader->permissions);
			}
			else
			{
				$this->postProcEngine->createDirRecursive($this->fileHeader->file, 0755);
			}
			$this->postProcEngine->processFilename(null);
		}
		else
		{
			// Symlink; do not post-process
			$this->postProcEngine->processFilename(null);
		}

		$this->fileHeader->compressed                = $this->compressedSizeReadSinceLastFileHeader;
		$this->compressedSizeReadSinceLastFileHeader = 0;

		$this->createDirectory();

		// Header is read
		$this->runState = AK_STATE_HEADER;

		$this->dataReadLength = 0;

		return true;
	}

	/**
	 * Creates the directory this file points to
	 */
	protected function createDirectory()
	{
		if (AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			return true;
		}

		// Do we need to create a directory?
		$lastSlash = strrpos($this->fileHeader->realFile, '/');
		$dirName   = substr($this->fileHeader->realFile, 0, $lastSlash);
		$perms     = 0755;
		$ignore    = AKFactory::get('kickstart.setup.ignoreerrors', false) || $this->isIgnoredDirectory($dirName);

		if (($this->postProcEngine->createDirRecursive($dirName, $perms) == false) && (!$ignore))
		{
			$this->setError(AKText::sprintf('COULDNT_CREATE_DIR', $dirName));

			return false;
		}

		return true;
	}

	/**
	 * Concrete classes must use this method to process file data. It must set $runState to AK_STATE_DATAREAD when
	 * it's finished processing the file data.
	 *
	 * @return bool True if processing the file data was successful, false if an error occurred
	 */
	protected function processFileData()
	{
		switch ($this->fileHeader->type)
		{
			case 'dir':
				return $this->processTypeDir();
				break;

			case 'link':
				return $this->processTypeLink();
				break;

			case 'file':
				switch ($this->fileHeader->compression)
				{
					case 'none':
						return $this->processTypeFileUncompressed();
						break;

					case 'gzip':
					case 'bzip2':
						return $this->processTypeFileCompressedSimple();
						break;

				}
				break;
		}
	}

	/**
	 * Process the file data of a directory entry
	 *
	 * @return bool
	 */
	private function processTypeDir()
	{
		// Directory entries in the JPA do not have file data, therefore we're done processing the entry
		$this->runState = AK_STATE_DATAREAD;

		return true;
	}

	/**
	 * Process the file data of a link entry
	 *
	 * @return bool
	 */
	private function processTypeLink()
	{

		// Does the file have any data, at all?
		if ($this->fileHeader->uncompressed == 0)
		{
			// No file data!
			$this->runState = AK_STATE_DATAREAD;

			return true;
		}

		// Read the mini header
		$binMiniHeader   = fread($this->fp, 8);
		$reallyReadBytes = akstringlen($binMiniHeader);

		if ($reallyReadBytes < 8)
		{
			// We read less than requested! Why? Did we hit local EOF?
			if ($this->isEOF(true) && !$this->isEOF(false))
			{
				// Yeap. Let's go to the next file
				$this->nextFile();
				// Retry reading the header
				$binMiniHeader   = fread($this->fp, 8);
				$reallyReadBytes = akstringlen($binMiniHeader);
				// Still not enough data? If so, the archive is corrupt or missing parts.
				if ($reallyReadBytes < 8)
				{
					$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));

					return false;
				}
			}
			else
			{
				// Nope. The archive is corrupt
				$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));

				return false;
			}
		}

		// Read the encrypted data
		$miniHeader      = unpack('Vencsize/Vdecsize', $binMiniHeader);
		$toReadBytes     = $miniHeader['encsize'];
		$data            = $this->fread($this->fp, $toReadBytes);
		$reallyReadBytes = akstringlen($data);
		$this->compressedSizeReadSinceLastFileHeader += 8 + $miniHeader['encsize'];

		if ($reallyReadBytes < $toReadBytes)
		{
			// We read less than requested! Why? Did we hit local EOF?
			if ($this->isEOF(true) && !$this->isEOF(false))
			{
				// Yeap. Let's go to the next file
				$this->nextFile();
				// Read the rest of the data
				$toReadBytes -= $reallyReadBytes;
				$restData        = $this->fread($this->fp, $toReadBytes);
				$reallyReadBytes = akstringlen($data);
				if ($reallyReadBytes < $toReadBytes)
				{
					$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));

					return false;
				}
				$data .= $restData;
			}
			else
			{
				// Nope. The archive is corrupt
				$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));

				return false;
			}
		}

		// Decrypt the data
		$data = AKEncryptionAES::AESDecryptCBC($data, $this->password);

		// Is the length of the decrypted data less than expected?
		$data_length = akstringlen($data);
		if ($data_length < $miniHeader['decsize'])
		{
			$this->setError(AKText::_('ERR_INVALID_JPS_PASSWORD'));

			return false;
		}

		// Trim the data
		$data = substr($data, 0, $miniHeader['decsize']);

		if (!AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			// Try to remove an existing file or directory by the same name
			if (file_exists($this->fileHeader->file))
			{
				@unlink($this->fileHeader->file);
				@rmdir($this->fileHeader->file);
			}
			// Remove any trailing slash
			if (substr($this->fileHeader->file, -1) == '/')
			{
				$this->fileHeader->file = substr($this->fileHeader->file, 0, -1);
			}
			// Create the symlink - only possible within PHP context. There's no support built in the FTP protocol, so no postproc use is possible here :(
			@symlink($data, $this->fileHeader->file);
		}

		$this->runState = AK_STATE_DATAREAD;

		return true; // No matter if the link was created!
	}

	private function processTypeFileUncompressed()
	{
		// Uncompressed files are being processed in small chunks, to avoid timeouts
		if (($this->dataReadLength == 0) && !AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			// Before processing file data, ensure permissions are adequate
			$this->setCorrectPermissions($this->fileHeader->file);
		}

		// Open the output file
		if (!AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			$ignore =
				AKFactory::get('kickstart.setup.ignoreerrors', false) || $this->isIgnoredDirectory($this->fileHeader->file);
			if ($this->dataReadLength == 0)
			{
				$outfp = @fopen($this->fileHeader->realFile, 'wb');
			}
			else
			{
				$outfp = @fopen($this->fileHeader->realFile, 'ab');
			}

			// Can we write to the file?
			if (($outfp === false) && (!$ignore))
			{
				// An error occured
				$this->setError(AKText::sprintf('COULDNT_WRITE_FILE', $this->fileHeader->realFile));

				return false;
			}
		}

		// Does the file have any data, at all?
		if ($this->fileHeader->uncompressed == 0)
		{
			// No file data!
			if (!AKFactory::get('kickstart.setup.dryrun', '0') && is_resource($outfp))
			{
				@fclose($outfp);
			}
			$this->runState = AK_STATE_DATAREAD;

			return true;
		}

		$this->setError('An uncompressed file was detected; this is not supported by this archive extraction utility');

		return false;
	}

	private function processTypeFileCompressedSimple()
	{
		$timer = AKFactory::getTimer();

		// Files are being processed in small chunks, to avoid timeouts
		if (($this->dataReadLength == 0) && !AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			// Before processing file data, ensure permissions are adequate
			$this->setCorrectPermissions($this->fileHeader->file);
		}

		// Open the output file
		if (!AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			// Open the output file
			$outfp = @fopen($this->fileHeader->realFile, 'wb');

			// Can we write to the file?
			$ignore =
				AKFactory::get('kickstart.setup.ignoreerrors', false) || $this->isIgnoredDirectory($this->fileHeader->file);
			if (($outfp === false) && (!$ignore))
			{
				// An error occured
				$this->setError(AKText::sprintf('COULDNT_WRITE_FILE', $this->fileHeader->realFile));

				return false;
			}
		}

		// Does the file have any data, at all?
		if ($this->fileHeader->uncompressed == 0)
		{
			// No file data!
			if (!AKFactory::get('kickstart.setup.dryrun', '0'))
			{
				if (is_resource($outfp))
				{
					@fclose($outfp);
				}
			}
			$this->runState = AK_STATE_DATAREAD;

			return true;
		}

		$leftBytes = $this->fileHeader->uncompressed - $this->dataReadLength;

		// Loop while there's data to write and enough time to do it
		while (($leftBytes > 0) && ($timer->getTimeLeft() > 0))
		{
			// Read the mini header
			$binMiniHeader   = fread($this->fp, 8);
			$reallyReadBytes = akstringlen($binMiniHeader);
			if ($reallyReadBytes < 8)
			{
				// We read less than requested! Why? Did we hit local EOF?
				if ($this->isEOF(true) && !$this->isEOF(false))
				{
					// Yeap. Let's go to the next file
					$this->nextFile();
					// Retry reading the header
					$binMiniHeader   = fread($this->fp, 8);
					$reallyReadBytes = akstringlen($binMiniHeader);
					// Still not enough data? If so, the archive is corrupt or missing parts.
					if ($reallyReadBytes < 8)
					{
						$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));

						return false;
					}
				}
				else
				{
					// Nope. The archive is corrupt
					$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));

					return false;
				}
			}

			// Read the encrypted data
			$miniHeader      = unpack('Vencsize/Vdecsize', $binMiniHeader);
			$toReadBytes     = $miniHeader['encsize'];
			$data            = $this->fread($this->fp, $toReadBytes);
			$reallyReadBytes = akstringlen($data);

			$this->compressedSizeReadSinceLastFileHeader += $miniHeader['encsize'] + 8;

			if ($reallyReadBytes < $toReadBytes)
			{
				// We read less than requested! Why? Did we hit local EOF?
				if ($this->isEOF(true) && !$this->isEOF(false))
				{
					// Yeap. Let's go to the next file
					$this->nextFile();
					// Read the rest of the data
					$toReadBytes -= $reallyReadBytes;
					$restData        = $this->fread($this->fp, $toReadBytes);
					$reallyReadBytes = akstringlen($restData);
					if ($reallyReadBytes < $toReadBytes)
					{
						$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));

						return false;
					}
					if (akstringlen($data) == 0)
					{
						$data = $restData;
					}
					else
					{
						$data .= $restData;
					}
				}
				else
				{
					// Nope. The archive is corrupt
					$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));

					return false;
				}
			}

			// Decrypt the data
			$data = AKEncryptionAES::AESDecryptCBC($data, $this->password);

			// Is the length of the decrypted data less than expected?
			$data_length = akstringlen($data);
			if ($data_length < $miniHeader['decsize'])
			{
				$this->setError(AKText::_('ERR_INVALID_JPS_PASSWORD'));

				return false;
			}

			// Trim the data
			$data = substr($data, 0, $miniHeader['decsize']);

			// Decompress
			$data    = gzinflate($data);
			$unc_len = akstringlen($data);

			// Write the decrypted data
			if (!AKFactory::get('kickstart.setup.dryrun', '0'))
			{
				if (is_resource($outfp))
				{
					@fwrite($outfp, $data, akstringlen($data));
				}
			}

			// Update the read length
			$this->dataReadLength += $unc_len;
			$leftBytes = $this->fileHeader->uncompressed - $this->dataReadLength;
		}

		// Close the file pointer
		if (!AKFactory::get('kickstart.setup.dryrun', '0'))
		{
			if (is_resource($outfp))
			{
				@fclose($outfp);
			}
		}

		// Was this a pre-timeout bail out?
		if ($leftBytes > 0)
		{
			$this->runState = AK_STATE_DATA;
		}
		else
		{
			// Oh! We just finished!
			$this->runState       = AK_STATE_DATAREAD;
			$this->dataReadLength = 0;
		}

		return true;
	}

	private function readKeyExpansionExtraHeader()
	{
		$signature = fread($this->fp, 4);

		if ($signature != "JH\x00\x01")
		{
			// Not a valid JPS file
			$this->setError(AKText::_('ERR_NOT_A_JPS_FILE'));

			return false;
		}

		$bin_data    = fread($this->fp, 8);
		$header_data = unpack('vlength/Calgo/Viterations/CuseStaticSalt', $bin_data);

		if ($header_data['length'] != 76)
		{
			// Not a valid JPS file
			$this->setError(AKText::_('ERR_NOT_A_JPS_FILE'));

			return false;
		}

		switch ($header_data['algo'])
		{
			case 0:
				$algorithm = 'sha1';
				break;

			case 1:
				$algorithm = 'sha256';
				break;

			case 2:
				$algorithm = 'sha512';
				break;

			default:
				// Not a valid JPS file
				$this->setError(AKText::_('ERR_NOT_A_JPS_FILE'));

				return false;
				break;
		}

		$this->pbkdf2Algorithm     = $algorithm;
		$this->pbkdf2Iterations    = $header_data['iterations'];
		$this->pbkdf2UseStaticSalt = $header_data['useStaticSalt'];
		$this->pbkdf2StaticSalt    = fread($this->fp, 64);

		return true;
	}
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * Timer class
 */
class AKCoreTimer extends AKAbstractObject
{
	/** @var int Maximum execution time allowance per step */
	private $max_exec_time = null;

	/** @var int Timestamp of execution start */
	private $start_time = null;

	/**
	 * Public constructor, creates the timer object and calculates the execution time limits
	 *
	 * @return AECoreTimer
	 */
	public function __construct()
	{
		parent::__construct();

		// Initialize start time
		$this->start_time = $this->microtime_float();

		// Get configured max time per step and bias
		$config_max_exec_time = AKFactory::get('kickstart.tuning.max_exec_time', 14);
		$bias                 = AKFactory::get('kickstart.tuning.run_time_bias', 75) / 100;

		// Get PHP's maximum execution time (our upper limit)
		if (@function_exists('ini_get'))
		{
			$php_max_exec_time = @ini_get("maximum_execution_time");
			if ((!is_numeric($php_max_exec_time)) || ($php_max_exec_time == 0))
			{
				// If we have no time limit, set a hard limit of about 10 seconds
				// (safe for Apache and IIS timeouts, verbose enough for users)
				$php_max_exec_time = 14;
			}
		}
		else
		{
			// If ini_get is not available, use a rough default
			$php_max_exec_time = 14;
		}

		// Apply an arbitrary correction to counter CMS load time
		$php_max_exec_time--;

		// Apply bias
		$php_max_exec_time    = $php_max_exec_time * $bias;
		$config_max_exec_time = $config_max_exec_time * $bias;

		// Use the most appropriate time limit value
		if ($config_max_exec_time > $php_max_exec_time)
		{
			$this->max_exec_time = $php_max_exec_time;
		}
		else
		{
			$this->max_exec_time = $config_max_exec_time;
		}
	}

	/**
	 * Returns the current timestampt in decimal seconds
	 */
	private function microtime_float()
	{
		list($usec, $sec) = explode(" ", microtime());

		return ((float) $usec + (float) $sec);
	}

	/**
	 * Wake-up function to reset internal timer when we get unserialized
	 */
	public function __wakeup()
	{
		// Re-initialize start time on wake-up
		$this->start_time = $this->microtime_float();
	}

	/**
	 * Gets the number of seconds left, before we hit the "must break" threshold
	 *
	 * @return float
	 */
	public function getTimeLeft()
	{
		return $this->max_exec_time - $this->getRunningTime();
	}

	/**
	 * Gets the time elapsed since object creation/unserialization, effectively how
	 * long Akeeba Engine has been processing data
	 *
	 * @return float
	 */
	public function getRunningTime()
	{
		return $this->microtime_float() - $this->start_time;
	}

	/**
	 * Enforce the minimum execution time
	 */
	public function enforce_min_exec_time()
	{
		// Try to get a sane value for PHP's maximum_execution_time INI parameter
		if (@function_exists('ini_get'))
		{
			$php_max_exec = @ini_get("maximum_execution_time");
		}
		else
		{
			$php_max_exec = 10;
		}
		if (($php_max_exec == "") || ($php_max_exec == 0))
		{
			$php_max_exec = 10;
		}
		// Decrease $php_max_exec time by 500 msec we need (approx.) to tear down
		// the application, as well as another 500msec added for rounding
		// error purposes. Also make sure this is never gonna be less than 0.
		$php_max_exec = max($php_max_exec * 1000 - 1000, 0);

		// Get the "minimum execution time per step" Akeeba Backup configuration variable
		$minexectime = AKFactory::get('kickstart.tuning.min_exec_time', 0);
		if (!is_numeric($minexectime))
		{
			$minexectime = 0;
		}

		// Make sure we are not over PHP's time limit!
		if ($minexectime > $php_max_exec)
		{
			$minexectime = $php_max_exec;
		}

		// Get current running time
		$elapsed_time = $this->getRunningTime() * 1000;

		// Only run a sleep delay if we haven't reached the minexectime execution time
		if (($minexectime > $elapsed_time) && ($elapsed_time > 0))
		{
			$sleep_msec = $minexectime - $elapsed_time;
			if (function_exists('usleep'))
			{
				usleep(1000 * $sleep_msec);
			}
			elseif (function_exists('time_nanosleep'))
			{
				$sleep_sec  = floor($sleep_msec / 1000);
				$sleep_nsec = 1000000 * ($sleep_msec - ($sleep_sec * 1000));
				time_nanosleep($sleep_sec, $sleep_nsec);
			}
			elseif (function_exists('time_sleep_until'))
			{
				$until_timestamp = time() + $sleep_msec / 1000;
				time_sleep_until($until_timestamp);
			}
			elseif (function_exists('sleep'))
			{
				$sleep_sec = ceil($sleep_msec / 1000);
				sleep($sleep_sec);
			}
		}
		elseif ($elapsed_time > 0)
		{
			// No sleep required, even if user configured us to be able to do so.
		}
	}

	/**
	 * Reset the timer. It should only be used in CLI mode!
	 */
	public function resetTime()
	{
		$this->start_time = $this->microtime_float();
	}

	/**
	 * @param int $max_exec_time
	 */
	public function setMaxExecTime($max_exec_time)
	{
		$this->max_exec_time = $max_exec_time;
	}
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * A filesystem scanner which uses opendir()
 */
class AKUtilsLister extends AKAbstractObject
{
	public function &getFiles($folder, $pattern = '*')
	{
		// Initialize variables
		$arr   = array();
		$false = false;

		if (!is_dir($folder))
		{
			return $false;
		}

		$handle = @opendir($folder);
		// If directory is not accessible, just return FALSE
		if ($handle === false)
		{
			$this->setWarning('Unreadable directory ' . $folder);

			return $false;
		}

		while (($file = @readdir($handle)) !== false)
		{
			if (!fnmatch($pattern, $file))
			{
				continue;
			}

			if (($file != '.') && ($file != '..'))
			{
				$ds    =
					($folder == '') || ($folder == '/') || (@substr($folder, -1) == '/') || (@substr($folder, -1) == DIRECTORY_SEPARATOR) ?
						'' : DIRECTORY_SEPARATOR;
				$dir   = $folder . $ds . $file;
				$isDir = is_dir($dir);
				if (!$isDir)
				{
					$arr[] = $dir;
				}
			}
		}
		@closedir($handle);

		return $arr;
	}

	public function &getFolders($folder, $pattern = '*')
	{
		// Initialize variables
		$arr   = array();
		$false = false;

		if (!is_dir($folder))
		{
			return $false;
		}

		$handle = @opendir($folder);
		// If directory is not accessible, just return FALSE
		if ($handle === false)
		{
			$this->setWarning('Unreadable directory ' . $folder);

			return $false;
		}

		while (($file = @readdir($handle)) !== false)
		{
			if (!fnmatch($pattern, $file))
			{
				continue;
			}

			if (($file != '.') && ($file != '..'))
			{
				$ds    =
					($folder == '') || ($folder == '/') || (@substr($folder, -1) == '/') || (@substr($folder, -1) == DIRECTORY_SEPARATOR) ?
						'' : DIRECTORY_SEPARATOR;
				$dir   = $folder . $ds . $file;
				$isDir = is_dir($dir);
				if ($isDir)
				{
					$arr[] = $dir;
				}
			}
		}
		@closedir($handle);

		return $arr;
	}
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * A simple INI-based i18n engine
 */
class AKText extends AKAbstractObject
{
	/**
	 * The default (en_GB) translation used when no other translation is available
	 *
	 * @var array
	 */
	private $default_translation = array(
		'AUTOMODEON'                      => 'Auto-mode enabled',
		'ERR_NOT_A_JPA_FILE'              => 'The file is not a JPA archive',
		'ERR_CORRUPT_ARCHIVE'             => 'The archive file is corrupt, truncated or archive parts are missing',
		'ERR_INVALID_LOGIN'               => 'Invalid login',
		'COULDNT_CREATE_DIR'              => 'Could not create %s folder',
		'COULDNT_WRITE_FILE'              => 'Could not open %s for writing.',
		'WRONG_FTP_HOST'                  => 'Wrong FTP host or port',
		'WRONG_FTP_USER'                  => 'Wrong FTP username or password',
		'WRONG_FTP_PATH1'                 => 'Wrong FTP initial directory - the directory doesn\'t exist',
		'FTP_CANT_CREATE_DIR'             => 'Could not create directory %s',
		'FTP_TEMPDIR_NOT_WRITABLE'        => 'Could not find or create a writable temporary directory',
		'SFTP_TEMPDIR_NOT_WRITABLE'       => 'Could not find or create a writable temporary directory',
		'FTP_COULDNT_UPLOAD'              => 'Could not upload %s',
		'THINGS_HEADER'                   => 'Things you should know about Akeeba Kickstart',
		'THINGS_01'                       => 'Kickstart is not an installer. It is an archive extraction tool. The actual installer was put inside the archive file at backup time.',
		'THINGS_02'                       => 'Kickstart is not the only way to extract the backup archive. You can use Akeeba eXtract Wizard and upload the extracted files using FTP instead.',
		'THINGS_03'                       => 'Kickstart is bound by your server\'s configuration. As such, it may not work at all.',
		'THINGS_04'                       => 'You should download and upload your archive files using FTP in Binary transfer mode. Any other method could lead to a corrupt backup archive and restoration failure.',
		'THINGS_05'                       => 'Post-restoration site load errors are usually caused by .htaccess or php.ini directives. You should understand that blank pages, 404 and 500 errors can usually be worked around by editing the aforementioned files. It is not our job to mess with your configuration files, because this could be dangerous for your site.',
		'THINGS_06'                       => 'Kickstart overwrites files without a warning. If you are not sure that you are OK with that do not continue.',
		'THINGS_07'                       => 'Trying to restore to the temporary URL of a cPanel host (e.g. http://1.2.3.4/~username) will lead to restoration failure and your site will appear to be not working. This is normal and it\'s just how your server and CMS software work.',
		'THINGS_08'                       => 'You are supposed to read the documentation before using this software. Most issues can be avoided, or easily worked around, by understanding how this software works.',
		'THINGS_09'                       => 'This text does not imply that there is a problem detected. It is standard text displayed every time you launch Kickstart.',
		'CLOSE_LIGHTBOX'                  => 'Click here or press ESC to close this message',
		'SELECT_ARCHIVE'                  => 'Select a backup archive',
		'ARCHIVE_FILE'                    => 'Archive file:',
		'SELECT_EXTRACTION'               => 'Select an extraction method',
		'WRITE_TO_FILES'                  => 'Write to files:',
		'WRITE_HYBRID'                    => 'Hybrid (use FTP only if needed)',
		'WRITE_DIRECTLY'                  => 'Directly',
		'WRITE_FTP'                       => 'Use FTP for all files',
		'WRITE_SFTP'                      => 'Use SFTP for all files',
		'FTP_HOST'                        => '(S)FTP host name:',
		'FTP_PORT'                        => '(S)FTP port:',
		'FTP_FTPS'                        => 'Use FTP over SSL (FTPS)',
		'FTP_PASSIVE'                     => 'Use FTP Passive Mode',
		'FTP_USER'                        => '(S)FTP user name:',
		'FTP_PASS'                        => '(S)FTP password:',
		'FTP_DIR'                         => '(S)FTP directory:',
		'FTP_TEMPDIR'                     => 'Temporary directory:',
		'FTP_CONNECTION_OK'               => 'FTP Connection Established',
		'SFTP_CONNECTION_OK'              => 'SFTP Connection Established',
		'FTP_CONNECTION_FAILURE'          => 'The FTP Connection Failed',
		'SFTP_CONNECTION_FAILURE'         => 'The SFTP Connection Failed',
		'FTP_TEMPDIR_WRITABLE'            => 'The temporary directory is writable.',
		'FTP_TEMPDIR_UNWRITABLE'          => 'The temporary directory is not writable. Please check the permissions.',
		'FTPBROWSER_ERROR_HOSTNAME'       => "Invalid FTP host or port",
		'FTPBROWSER_ERROR_USERPASS'       => "Invalid FTP username or password",
		'FTPBROWSER_ERROR_NOACCESS'       => "Directory doesn't exist or you don't have enough permissions to access it",
		'FTPBROWSER_ERROR_UNSUPPORTED'    => "Sorry, your FTP server doesn't support our FTP directory browser.",
		'FTPBROWSER_LBL_GOPARENT'         => "&lt;up one level&gt;",
		'FTPBROWSER_LBL_INSTRUCTIONS'     => 'Click on a directory to navigate into it. Click on OK to select that directory, Cancel to abort the procedure.',
		'FTPBROWSER_LBL_ERROR'            => 'An error occurred',
		'SFTP_NO_SSH2'                    => 'Your web server does not have the SSH2 PHP module, therefore can not connect to SFTP servers.',
		'SFTP_NO_FTP_SUPPORT'             => 'Your SSH server does not allow SFTP connections',
		'SFTP_WRONG_USER'                 => 'Wrong SFTP username or password',
		'SFTP_WRONG_STARTING_DIR'         => 'You must supply a valid absolute path',
		'SFTPBROWSER_ERROR_NOACCESS'      => "Directory doesn't exist or you don't have enough permissions to access it",
		'SFTP_COULDNT_UPLOAD'             => 'Could not upload %s',
		'SFTP_CANT_CREATE_DIR'            => 'Could not create directory %s',
		'UI-ROOT'                         => '&lt;root&gt;',
		'CONFIG_UI_FTPBROWSER_TITLE'      => 'FTP Directory Browser',
		'FTP_BROWSE'                      => 'Browse',
		'BTN_CHECK'                       => 'Check',
		'BTN_RESET'                       => 'Reset',
		'BTN_TESTFTPCON'                  => 'Test FTP connection',
		'BTN_TESTSFTPCON'                 => 'Test SFTP connection',
		'BTN_GOTOSTART'                   => 'Start over',
		'FINE_TUNE'                       => 'Fine tune',
		'BTN_SHOW_FINE_TUNE'              => 'Show advanced options (for experts)',
		'MIN_EXEC_TIME'                   => 'Minimum execution time:',
		'MAX_EXEC_TIME'                   => 'Maximum execution time:',
		'SECONDS_PER_STEP'                => 'seconds per step',
		'EXTRACT_FILES'                   => 'Extract files',
		'BTN_START'                       => 'Start',
		'EXTRACTING'                      => 'Extracting',
		'DO_NOT_CLOSE_EXTRACT'            => 'Do not close this window while the extraction is in progress',
		'RESTACLEANUP'                    => 'Restoration and Clean Up',
		'BTN_RUNINSTALLER'                => 'Run the Installer',
		'BTN_CLEANUP'                     => 'Clean Up',
		'BTN_SITEFE'                      => 'Visit your site\'s front-end',
		'BTN_SITEBE'                      => 'Visit your site\'s back-end',
		'WARNINGS'                        => 'Extraction Warnings',
		'ERROR_OCCURED'                   => 'An error occured',
		'STEALTH_MODE'                    => 'Stealth mode',
		'STEALTH_URL'                     => 'HTML file to show to web visitors',
		'ERR_NOT_A_JPS_FILE'              => 'The file is not a JPA archive',
		'ERR_INVALID_JPS_PASSWORD'        => 'The password you gave is wrong or the archive is corrupt',
		'JPS_PASSWORD'                    => 'Archive Password (for JPS files)',
		'INVALID_FILE_HEADER'             => 'Invalid header in archive file, part %s, offset %s',
		'NEEDSOMEHELPKS'                  => 'Want some help to use this tool? Read this first:',
		'QUICKSTART'                      => 'Quick Start Guide',
		'CANTGETITTOWORK'                 => 'Can\'t get it to work? Click me!',
		'NOARCHIVESCLICKHERE'             => 'No archives detected. Click here for troubleshooting instructions.',
		'POSTRESTORATIONTROUBLESHOOTING'  => 'Something not working after the restoration? Click here for troubleshooting instructions.',
		'UPDATE_HEADER'                   => 'An updated version of Akeeba Kickstart (<span id="update-version">unknown</span>) is available!',
		'UPDATE_NOTICE'                   => 'You are advised to always use the latest version of Akeeba Kickstart available. Older versions may be subject to bugs and will not be supported.',
		'UPDATE_DLNOW'                    => 'Download now',
		'UPDATE_MOREINFO'                 => 'More information',
		'IGNORE_MOST_ERRORS'              => 'Ignore most errors',
		'WRONG_FTP_PATH2'                 => 'Wrong FTP initial directory - the directory doesn\'t correspond to your site\'s web root',
		'ARCHIVE_DIRECTORY'               => 'Archive directory:',
		'RELOAD_ARCHIVES'                 => 'Reload',
		'CONFIG_UI_SFTPBROWSER_TITLE'     => 'SFTP Directory Browser',
		'ERR_COULD_NOT_OPEN_ARCHIVE_PART' => 'Could not open archive part file %s for reading. Check that the file exists, is readable by the web server and is not in a directory made out of reach by chroot, open_basedir restrictions or any other restriction put in place by your host.',
		'RENAME_FILES'                    => 'Rename server configuration files',
		'RESTORE_PERMISSIONS'             => 'Restore file permissions',
	);

	/**
	 * The array holding the translation keys
	 *
	 * @var array
	 */
	private $strings;

	/**
	 * The currently detected language (ISO code)
	 *
	 * @var string
	 */
	private $language;

	/*
	 * Initializes the translation engine
	 * @return AKText
	 */
	public function __construct()
	{
		// Start with the default translation
		$this->strings = $this->default_translation;
		// Try loading the translation file in English, if it exists
		$this->loadTranslation('en-GB');
		// Try loading the translation file in the browser's preferred language, if it exists
		$this->getBrowserLanguage();
		if (!is_null($this->language))
		{
			$this->loadTranslation();
		}
	}

	private function loadTranslation($lang = null)
	{
		if (defined('KSLANGDIR'))
		{
			$dirname = KSLANGDIR;
		}
		else
		{
			$dirname = KSROOTDIR;
		}
		$basename = basename(__FILE__, '.php') . '.ini';
		if (empty($lang))
		{
			$lang = $this->language;
		}

		$translationFilename = $dirname . DIRECTORY_SEPARATOR . $lang . '.' . $basename;
		if (!@file_exists($translationFilename) && ($basename != 'kickstart.ini'))
		{
			$basename            = 'kickstart.ini';
			$translationFilename = $dirname . DIRECTORY_SEPARATOR . $lang . '.' . $basename;
		}
		if (!@file_exists($translationFilename))
		{
			return;
		}
		$temp = self::parse_ini_file($translationFilename, false);

		if (!is_array($this->strings))
		{
			$this->strings = array();
		}
		if (empty($temp))
		{
			$this->strings = array_merge($this->default_translation, $this->strings);
		}
		else
		{
			$this->strings = array_merge($this->strings, $temp);
		}
	}

	/**
	 * A PHP based INI file parser.
	 *
	 * Thanks to asohn ~at~ aircanopy ~dot~ net for posting this handy function on
	 * the parse_ini_file page on http://gr.php.net/parse_ini_file
	 *
	 * @param string $file             Filename to process
	 * @param bool   $process_sections True to also process INI sections
	 *
	 * @return array An associative array of sections, keys and values
	 * @access private
	 */
	public static function parse_ini_file($file, $process_sections = false, $raw_data = false)
	{
		$process_sections = ($process_sections !== true) ? false : true;

		if (!$raw_data)
		{
			$ini = @file($file);
		}
		else
		{
			$ini = $file;
		}
		if (count($ini) == 0)
		{
			return array();
		}

		$sections = array();
		$values   = array();
		$result   = array();
		$globals  = array();
		$i        = 0;
		if (!empty($ini))
		{
			foreach ($ini as $line)
			{
				$line = trim($line);
				$line = str_replace("\t", " ", $line);

				// Comments
				if (!preg_match('/^[a-zA-Z0-9[]/', $line))
				{
					continue;
				}

				// Sections
				if ($line{0} == '[')
				{
					$tmp        = explode(']', $line);
					$sections[] = trim(substr($tmp[0], 1));
					$i++;
					continue;
				}

				// Key-value pair
				list($key, $value) = explode('=', $line, 2);
				$key   = trim($key);
				$value = trim($value);
				if (strstr($value, ";"))
				{
					$tmp = explode(';', $value);
					if (count($tmp) == 2)
					{
						if ((($value{0} != '"') && ($value{0} != "'")) ||
							preg_match('/^".*"\s*;/', $value) || preg_match('/^".*;[^"]*$/', $value) ||
							preg_match("/^'.*'\s*;/", $value) || preg_match("/^'.*;[^']*$/", $value)
						)
						{
							$value = $tmp[0];
						}
					}
					else
					{
						if ($value{0} == '"')
						{
							$value = preg_replace('/^"(.*)".*/', '$1', $value);
						}
						elseif ($value{0} == "'")
						{
							$value = preg_replace("/^'(.*)'.*/", '$1', $value);
						}
						else
						{
							$value = $tmp[0];
						}
					}
				}
				$value = trim($value);
				$value = trim($value, "'\"");

				if ($i == 0)
				{
					if (substr($line, -1, 2) == '[]')
					{
						$globals[$key][] = $value;
					}
					else
					{
						$globals[$key] = $value;
					}
				}
				else
				{
					if (substr($line, -1, 2) == '[]')
					{
						$values[$i - 1][$key][] = $value;
					}
					else
					{
						$values[$i - 1][$key] = $value;
					}
				}
			}
		}

		for ($j = 0; $j < $i; $j++)
		{
			if ($process_sections === true)
			{
				$result[$sections[$j]] = $values[$j];
			}
			else
			{
				$result[] = $values[$j];
			}
		}

		return $result + $globals;
	}

	public function getBrowserLanguage()
	{
		// Detection code from Full Operating system language detection, by Harald Hope
		// Retrieved from http://techpatterns.com/downloads/php_language_detection.php
		$user_languages = array();
		//check to see if language is set
		if (isset($_SERVER["HTTP_ACCEPT_LANGUAGE"]))
		{
			$languages = strtolower($_SERVER["HTTP_ACCEPT_LANGUAGE"]);
			// $languages = ' fr-ch;q=0.3, da, en-us;q=0.8, en;q=0.5, fr;q=0.3';
			// need to remove spaces from strings to avoid error
			$languages = str_replace(' ', '', $languages);
			$languages = explode(",", $languages);

			foreach ($languages as $language_list)
			{
				// pull out the language, place languages into array of full and primary
				// string structure:
				$temp_array = array();
				// slice out the part before ; on first step, the part before - on second, place into array
				$temp_array[0] = substr($language_list, 0, strcspn($language_list, ';'));//full language
				$temp_array[1] = substr($language_list, 0, 2);// cut out primary language
				if ((strlen($temp_array[0]) == 5) && ((substr($temp_array[0], 2, 1) == '-') || (substr($temp_array[0], 2, 1) == '_')))
				{
					$langLocation  = strtoupper(substr($temp_array[0], 3, 2));
					$temp_array[0] = $temp_array[1] . '-' . $langLocation;
				}
				//place this array into main $user_languages language array
				$user_languages[] = $temp_array;
			}
		}
		else// if no languages found
		{
			$user_languages[0] = array('', ''); //return blank array.
		}

		$this->language = null;
		$basename       = basename(__FILE__, '.php') . '.ini';

		// Try to match main language part of the filename, irrespective of the location, e.g. de_DE will do if de_CH doesn't exist.
		if (class_exists('AKUtilsLister'))
		{
			$fs       = new AKUtilsLister();
			$iniFiles = $fs->getFiles(KSROOTDIR, '*.' . $basename);
			if (empty($iniFiles) && ($basename != 'kickstart.ini'))
			{
				$basename = 'kickstart.ini';
				$iniFiles = $fs->getFiles(KSROOTDIR, '*.' . $basename);
			}
		}
		else
		{
			$iniFiles = null;
		}

		if (is_array($iniFiles))
		{
			foreach ($user_languages as $languageStruct)
			{
				if (is_null($this->language))
				{
					// Get files matching the main lang part
					$iniFiles = $fs->getFiles(KSROOTDIR, $languageStruct[1] . '-??.' . $basename);
					if (count($iniFiles) > 0)
					{
						$filename       = $iniFiles[0];
						$filename       = substr($filename, strlen(KSROOTDIR) + 1);
						$this->language = substr($filename, 0, 5);
					}
					else
					{
						$this->language = null;
					}
				}
			}
		}

		if (is_null($this->language))
		{
			// Try to find a full language match
			foreach ($user_languages as $languageStruct)
			{
				if (@file_exists($languageStruct[0] . '.' . $basename) && is_null($this->language))
				{
					$this->language = $languageStruct[0];
				}
				else
				{

				}
			}
		}
		else
		{
			// Do we have an exact match?
			foreach ($user_languages as $languageStruct)
			{
				if (substr($this->language, 0, strlen($languageStruct[1])) == $languageStruct[1])
				{
					if (file_exists($languageStruct[0] . '.' . $basename))
					{
						$this->language = $languageStruct[0];
					}
				}
			}
		}

		// Now, scan for full language based on the partial match

	}

	public static function sprintf($key)
	{
		$text = self::getInstance();
		$args = func_get_args();
		if (count($args) > 0)
		{
			$args[0] = $text->_($args[0]);

			return @call_user_func_array('sprintf', $args);
		}

		return '';
	}

	/**
	 * Singleton pattern for Language
	 *
	 * @return AKText The global AKText instance
	 */
	public static function &getInstance()
	{
		static $instance;

		if (!is_object($instance))
		{
			$instance = new AKText();
		}

		return $instance;
	}

	public static function _($string)
	{
		$text = self::getInstance();

		$key = strtoupper($string);
		$key = substr($key, 0, 1) == '_' ? substr($key, 1) : $key;

		if (isset ($text->strings[$key]))
		{
			$string = $text->strings[$key];
		}
		else
		{
			if (defined($string))
			{
				$string = constant($string);
			}
		}

		return $string;
	}

	public function dumpLanguage()
	{
		$out = '';
		foreach ($this->strings as $key => $value)
		{
			$out .= "$key=$value\n";
		}

		return $out;
	}

	public function asJavascript()
	{
		$out = '';
		foreach ($this->strings as $key => $value)
		{
			$key   = addcslashes($key, '\\\'"');
			$value = addcslashes($value, '\\\'"');
			if (!empty($out))
			{
				$out .= ",\n";
			}
			$out .= "'$key':\t'$value'";
		}

		return $out;
	}

	public function resetTranslation()
	{
		$this->strings = $this->default_translation;
	}

	public function addDefaultLanguageStrings($stringList = array())
	{
		if (!is_array($stringList))
		{
			return;
		}
		if (empty($stringList))
		{
			return;
		}

		$this->strings = array_merge($stringList, $this->strings);
	}
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * The Akeeba Kickstart Factory class
 * This class is reponssible for instanciating all Akeeba Kicsktart classes
 */
class AKFactory
{
	/** @var   array  A list of instanciated objects */
	private $objectlist = array();

	/** @var   array  Simple hash data storage */
	private $varlist = array();

	/** @var   self   Static instance */
	private static $instance = null;

	/** Private constructor makes sure we can't directly instantiate the class */
	private function __construct()
	{
	}

	/**
	 * Gets a serialized snapshot of the Factory for safekeeping (hibernate)
	 *
	 * @return string The serialized snapshot of the Factory
	 */
	public static function serialize()
	{
		$engine = self::getUnarchiver();
		$engine->shutdown();
		$serialized = serialize(self::getInstance());

		if (function_exists('base64_encode') && function_exists('base64_decode'))
		{
			$serialized = base64_encode($serialized);
		}

		return $serialized;
	}

	/**
	 * Gets the unarchiver engine
	 */
	public static function &getUnarchiver($configOverride = null)
	{
		static $class_name;

		if (!empty($configOverride))
		{
			if ($configOverride['reset'])
			{
				$class_name = null;
			}
		}

		if (empty($class_name))
		{
			$filetype = self::get('kickstart.setup.filetype', null);

			if (empty($filetype))
			{
				$filename      = self::get('kickstart.setup.sourcefile', null);
				$basename      = basename($filename);
				$baseextension = strtoupper(substr($basename, -3));
				switch ($baseextension)
				{
					case 'JPA':
						$filetype = 'JPA';
						break;

					case 'JPS':
						$filetype = 'JPS';
						break;

					case 'ZIP':
						$filetype = 'ZIP';
						break;

					default:
						die('Invalid archive type or extension in file ' . $filename);
						break;
				}
			}

			$class_name = 'AKUnarchiver' . ucfirst($filetype);
		}

		$destdir = self::get('kickstart.setup.destdir', null);
		if (empty($destdir))
		{
			$destdir = KSROOTDIR;
		}

		$object = self::getClassInstance($class_name);
		if ($object->getState() == 'init')
		{
			$sourcePath = self::get('kickstart.setup.sourcepath', '');
			$sourceFile = self::get('kickstart.setup.sourcefile', '');

			if (!empty($sourcePath))
			{
				$sourceFile = rtrim($sourcePath, '/\\') . '/' . $sourceFile;
			}

			// Initialize the object –– Any change here MUST be reflected to echoHeadJavascript (default values)
			$config = array(
				'filename'            => $sourceFile,
				'restore_permissions' => self::get('kickstart.setup.restoreperms', 0),
				'post_proc'           => self::get('kickstart.procengine', 'direct'),
				'add_path'            => self::get('kickstart.setup.targetpath', $destdir),
				'remove_path'         => self::get('kickstart.setup.removepath', ''),
				'rename_files'        => self::get('kickstart.setup.renamefiles', array(
					'.htaccess' => 'htaccess.bak', 'php.ini' => 'php.ini.bak', 'web.config' => 'web.config.bak',
					'.user.ini' => '.user.ini.bak'
				)),
				'skip_files'          => self::get('kickstart.setup.skipfiles', array(
					basename(__FILE__), 'kickstart.php', 'abiautomation.ini', 'htaccess.bak', 'php.ini.bak',
					'cacert.pem'
				)),
				'ignoredirectories'   => self::get('kickstart.setup.ignoredirectories', array(
					'tmp', 'log', 'logs'
				)),
			);

			if (!defined('KICKSTART'))
			{
				// In restore.php mode we have to exclude the restoration.php files
				$moreSkippedFiles     = array(
					// Akeeba Backup for Joomla!
					'administrator/components/com_akeeba/restoration.php',
					// Joomla! Update
					'administrator/components/com_joomlaupdate/restoration.php',
					// Akeeba Backup for WordPress
					'wp-content/plugins/akeebabackupwp/app/restoration.php',
					'wp-content/plugins/akeebabackupcorewp/app/restoration.php',
					'wp-content/plugins/akeebabackup/app/restoration.php',
					'wp-content/plugins/akeebabackupwpcore/app/restoration.php',
					// Akeeba Solo
					'app/restoration.php',
				);
				$config['skip_files'] = array_merge($config['skip_files'], $moreSkippedFiles);
			}

			if (!empty($configOverride))
			{
				$config = array_merge($config, $configOverride);
			}

			$object->setup($config);
		}

		return $object;
	}

	// ========================================================================
	// Public factory interface
	// ========================================================================

	public static function get($key, $default = null)
	{
		$self = self::getInstance();

		if (array_key_exists($key, $self->varlist))
		{
			return $self->varlist[$key];
		}
		else
		{
			return $default;
		}
	}

	/**
	 * Gets a single, internally used instance of the Factory
	 *
	 * @param string $serialized_data [optional] Serialized data to spawn the instance from
	 *
	 * @return AKFactory A reference to the unique Factory object instance
	 */
	protected static function &getInstance($serialized_data = null)
	{
		if (!is_object(self::$instance) || !is_null($serialized_data))
		{
			if (!is_null($serialized_data))
			{
				self::$instance = unserialize($serialized_data);
			}
			else
			{
				self::$instance = new self();
			}
		}

		return self::$instance;
	}

	/**
	 * Internal function which instanciates a class named $class_name.
	 * The autoloader
	 *
	 * @param string $class_name
	 *
	 * @return object
	 */
	protected static function &getClassInstance($class_name)
	{
		$self = self::getInstance();

		if (!isset($self->objectlist[$class_name]))
		{
			$self->objectlist[$class_name] = new $class_name;
		}

		return $self->objectlist[$class_name];
	}

	// ========================================================================
	// Public hash data storage interface
	// ========================================================================

	/**
	 * Regenerates the full Factory state from a serialized snapshot (resume)
	 *
	 * @param string $serialized_data The serialized snapshot to resume from
	 */
	public static function unserialize($serialized_data)
	{
		if (function_exists('base64_encode') && function_exists('base64_decode'))
		{
			$serialized_data = base64_decode($serialized_data);
		}
		self::getInstance($serialized_data);
	}

	/**
	 * Reset the internal factory state, freeing all previously created objects
	 */
	public static function nuke()
	{
		self::$instance = null;
	}

	// ========================================================================
	// Akeeba Kickstart classes
	// ========================================================================

	public static function set($key, $value)
	{
		$self                = self::getInstance();
		$self->varlist[$key] = $value;
	}

	/**
	 * Gets the post processing engine
	 *
	 * @param string $proc_engine
	 */
	public static function &getPostProc($proc_engine = null)
	{
		static $class_name;
		if (empty($class_name))
		{
			if (empty($proc_engine))
			{
				$proc_engine = self::get('kickstart.procengine', 'direct');
			}
			$class_name = 'AKPostproc' . ucfirst($proc_engine);
		}

		return self::getClassInstance($class_name);
	}

	/**
	 * Get the a reference to the Akeeba Engine's timer
	 *
	 * @return AKCoreTimer
	 */
	public static function &getTimer()
	{
		return self::getClassInstance('AKCoreTimer');
	}

}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * Interface for AES encryption adapters
 */
interface AKEncryptionAESAdapterInterface
{
	/**
	 * Decrypts a string. Returns the raw binary ciphertext, zero-padded.
	 *
	 * @param   string       $plainText  The plaintext to encrypt
	 * @param   string       $key        The raw binary key (will be zero-padded or chopped if its size is different than the block size)
	 *
	 * @return  string  The raw encrypted binary string.
	 */
	public function decrypt($plainText, $key);

	/**
	 * Returns the encryption block size in bytes
	 *
	 * @return  int
	 */
	public function getBlockSize();

	/**
	 * Is this adapter supported?
	 *
	 * @return  bool
	 */
	public function isSupported();
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * Abstract AES encryption class
 */
abstract class AKEncryptionAESAdapterAbstract
{
	/**
	 * Trims or zero-pads a key / IV
	 *
	 * @param   string $key  The key or IV to treat
	 * @param   int    $size The block size of the currently used algorithm
	 *
	 * @return  null|string  Null if $key is null, treated string of $size byte length otherwise
	 */
	public function resizeKey($key, $size)
	{
		if (empty($key))
		{
			return null;
		}

		$keyLength = strlen($key);

		if (function_exists('mb_strlen'))
		{
			$keyLength = mb_strlen($key, 'ASCII');
		}

		if ($keyLength == $size)
		{
			return $key;
		}

		if ($keyLength > $size)
		{
			if (function_exists('mb_substr'))
			{
				return mb_substr($key, 0, $size, 'ASCII');
			}

			return substr($key, 0, $size);
		}

		return $key . str_repeat("\0", ($size - $keyLength));
	}

	/**
	 * Returns null bytes to append to the string so that it's zero padded to the specified block size
	 *
	 * @param   string $string    The binary string which will be zero padded
	 * @param   int    $blockSize The block size
	 *
	 * @return  string  The zero bytes to append to the string to zero pad it to $blockSize
	 */
	protected function getZeroPadding($string, $blockSize)
	{
		$stringSize = strlen($string);

		if (function_exists('mb_strlen'))
		{
			$stringSize = mb_strlen($string, 'ASCII');
		}

		if ($stringSize == $blockSize)
		{
			return '';
		}

		if ($stringSize < $blockSize)
		{
			return str_repeat("\0", $blockSize - $stringSize);
		}

		$paddingBytes = $stringSize % $blockSize;

		return str_repeat("\0", $blockSize - $paddingBytes);
	}
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

class Mcrypt extends AKEncryptionAESAdapterAbstract implements AKEncryptionAESAdapterInterface
{
	protected $cipherType = MCRYPT_RIJNDAEL_128;

	protected $cipherMode = MCRYPT_MODE_CBC;

	public function decrypt($cipherText, $key)
	{
		$iv_size    = $this->getBlockSize();
		$key        = $this->resizeKey($key, $iv_size);
		$iv         = substr($cipherText, 0, $iv_size);
		$cipherText = substr($cipherText, $iv_size);
		$plainText  = mcrypt_decrypt($this->cipherType, $key, $cipherText, $this->cipherMode, $iv);

		return $plainText;
	}

	public function isSupported()
	{
		if (!function_exists('mcrypt_get_key_size'))
		{
			return false;
		}

		if (!function_exists('mcrypt_get_iv_size'))
		{
			return false;
		}

		if (!function_exists('mcrypt_create_iv'))
		{
			return false;
		}

		if (!function_exists('mcrypt_encrypt'))
		{
			return false;
		}

		if (!function_exists('mcrypt_decrypt'))
		{
			return false;
		}

		if (!function_exists('mcrypt_list_algorithms'))
		{
			return false;
		}

		if (!function_exists('hash'))
		{
			return false;
		}

		if (!function_exists('hash_algos'))
		{
			return false;
		}

		$algorightms = mcrypt_list_algorithms();

		if (!in_array('rijndael-128', $algorightms))
		{
			return false;
		}

		if (!in_array('rijndael-192', $algorightms))
		{
			return false;
		}

		if (!in_array('rijndael-256', $algorightms))
		{
			return false;
		}

		$algorightms = hash_algos();

		if (!in_array('sha256', $algorightms))
		{
			return false;
		}

		return true;
	}

	public function getBlockSize()
	{
		return mcrypt_get_iv_size($this->cipherType, $this->cipherMode);
	}
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

class OpenSSL extends AKEncryptionAESAdapterAbstract implements AKEncryptionAESAdapterInterface
{
	/**
	 * The OpenSSL options for encryption / decryption
	 *
	 * @var  int
	 */
	protected $openSSLOptions = 0;

	/**
	 * The encryption method to use
	 *
	 * @var  string
	 */
	protected $method = 'aes-128-cbc';

	public function __construct()
	{
		$this->openSSLOptions = OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING;
	}

	public function decrypt($cipherText, $key)
	{
		$iv_size    = $this->getBlockSize();
		$key        = $this->resizeKey($key, $iv_size);
		$iv         = substr($cipherText, 0, $iv_size);
		$cipherText = substr($cipherText, $iv_size);
		$plainText  = openssl_decrypt($cipherText, $this->method, $key, $this->openSSLOptions, $iv);

		return $plainText;
	}

	public function isSupported()
	{
		if (!function_exists('openssl_get_cipher_methods'))
		{
			return false;
		}

		if (!function_exists('openssl_random_pseudo_bytes'))
		{
			return false;
		}

		if (!function_exists('openssl_cipher_iv_length'))
		{
			return false;
		}

		if (!function_exists('openssl_encrypt'))
		{
			return false;
		}

		if (!function_exists('openssl_decrypt'))
		{
			return false;
		}

		if (!function_exists('hash'))
		{
			return false;
		}

		if (!function_exists('hash_algos'))
		{
			return false;
		}

		$algorightms = openssl_get_cipher_methods();

		if (!in_array('aes-128-cbc', $algorightms))
		{
			return false;
		}

		$algorightms = hash_algos();

		if (!in_array('sha256', $algorightms))
		{
			return false;
		}

		return true;
	}

	/**
	 * @return int
	 */
	public function getBlockSize()
	{
		return openssl_cipher_iv_length($this->method);
	}
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * AES implementation in PHP (c) Chris Veness 2005-2016.
 * Right to use and adapt is granted for under a simple creative commons attribution
 * licence. No warranty of any form is offered.
 *
 * Heavily modified for Akeeba Backup by Nicholas K. Dionysopoulos
 * Also added AES-128 CBC mode (with mcrypt and OpenSSL) on top of AES CTR
 */
class AKEncryptionAES
{
	// Sbox is pre-computed multiplicative inverse in GF(2^8) used in SubBytes and KeyExpansion [�5.1.1]
	protected static $Sbox =
		array(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
			0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
			0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
			0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
			0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
			0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
			0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
			0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
			0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
			0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
			0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
			0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
			0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
			0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
			0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
			0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16);

	// Rcon is Round Constant used for the Key Expansion [1st col is 2^(r-1) in GF(2^8)] [�5.2]
	protected static $Rcon = array(
		array(0x00, 0x00, 0x00, 0x00),
		array(0x01, 0x00, 0x00, 0x00),
		array(0x02, 0x00, 0x00, 0x00),
		array(0x04, 0x00, 0x00, 0x00),
		array(0x08, 0x00, 0x00, 0x00),
		array(0x10, 0x00, 0x00, 0x00),
		array(0x20, 0x00, 0x00, 0x00),
		array(0x40, 0x00, 0x00, 0x00),
		array(0x80, 0x00, 0x00, 0x00),
		array(0x1b, 0x00, 0x00, 0x00),
		array(0x36, 0x00, 0x00, 0x00));

	protected static $passwords = array();

	/**
	 * The algorithm to use for PBKDF2. Must be a supported hash_hmac algorithm. Default: sha1
	 *
	 * @var  string
	 */
	private static $pbkdf2Algorithm = 'sha1';

	/**
	 * Number of iterations to use for PBKDF2
	 *
	 * @var  int
	 */
	private static $pbkdf2Iterations = 1000;

	/**
	 * Should we use a static salt for PBKDF2?
	 *
	 * @var  int
	 */
	private static $pbkdf2UseStaticSalt = 0;

	/**
	 * The static salt to use for PBKDF2
	 *
	 * @var  string
	 */
	private static $pbkdf2StaticSalt = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";

	/**
	 * Encrypt a text using AES encryption in Counter mode of operation
	 *  - see http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
	 *
	 * Unicode multi-byte character safe
	 *
	 * @param   string $plaintext Source text to be encrypted
	 * @param   string $password  The password to use to generate a key
	 * @param   int    $nBits     Number of bits to be used in the key (128, 192, or 256)
	 *
	 * @return  string  Encrypted text
	 */
	public static function AESEncryptCtr($plaintext, $password, $nBits)
	{
		$blockSize = 16;  // block size fixed at 16 bytes / 128 bits (Nb=4) for AES
		if (!($nBits == 128 || $nBits == 192 || $nBits == 256))
		{
			return '';
		}  // standard allows 128/192/256 bit keys
		// note PHP (5) gives us plaintext and password in UTF8 encoding!

		// use AES itself to encrypt password to get cipher key (using plain password as source for
		// key expansion) - gives us well encrypted key
		$nBytes  = $nBits / 8;  // no bytes in key
		$pwBytes = array();
		for ($i = 0; $i < $nBytes; $i++)
		{
			$pwBytes[$i] = ord(substr($password, $i, 1)) & 0xff;
		}
		$key = self::Cipher($pwBytes, self::KeyExpansion($pwBytes));
		$key = array_merge($key, array_slice($key, 0, $nBytes - 16));  // expand key to 16/24/32 bytes long

		// initialise counter block (NIST SP800-38A �B.2): millisecond time-stamp for nonce in
		// 1st 8 bytes, block counter in 2nd 8 bytes
		$counterBlock = array();
		$nonce        = floor(microtime(true) * 1000);   // timestamp: milliseconds since 1-Jan-1970
		$nonceSec     = floor($nonce / 1000);
		$nonceMs      = $nonce % 1000;
		// encode nonce with seconds in 1st 4 bytes, and (repeated) ms part filling 2nd 4 bytes
		for ($i = 0; $i < 4; $i++)
		{
			$counterBlock[$i] = self::urs($nonceSec, $i * 8) & 0xff;
		}
		for ($i = 0; $i < 4; $i++)
		{
			$counterBlock[$i + 4] = $nonceMs & 0xff;
		}
		// and convert it to a string to go on the front of the ciphertext
		$ctrTxt = '';
		for ($i = 0; $i < 8; $i++)
		{
			$ctrTxt .= chr($counterBlock[$i]);
		}

		// generate key schedule - an expansion of the key into distinct Key Rounds for each round
		$keySchedule = self::KeyExpansion($key);

		$blockCount = ceil(strlen($plaintext) / $blockSize);
		$ciphertxt  = array();  // ciphertext as array of strings

		for ($b = 0; $b < $blockCount; $b++)
		{
			// set counter (block #) in last 8 bytes of counter block (leaving nonce in 1st 8 bytes)
			// done in two stages for 32-bit ops: using two words allows us to go past 2^32 blocks (68GB)
			for ($c = 0; $c < 4; $c++)
			{
				$counterBlock[15 - $c] = self::urs($b, $c * 8) & 0xff;
			}
			for ($c = 0; $c < 4; $c++)
			{
				$counterBlock[15 - $c - 4] = self::urs($b / 0x100000000, $c * 8);
			}

			$cipherCntr = self::Cipher($counterBlock, $keySchedule);  // -- encrypt counter block --

			// block size is reduced on final block
			$blockLength = $b < $blockCount - 1 ? $blockSize : (strlen($plaintext) - 1) % $blockSize + 1;
			$cipherByte  = array();

			for ($i = 0; $i < $blockLength; $i++)
			{  // -- xor plaintext with ciphered counter byte-by-byte --
				$cipherByte[$i] = $cipherCntr[$i] ^ ord(substr($plaintext, $b * $blockSize + $i, 1));
				$cipherByte[$i] = chr($cipherByte[$i]);
			}
			$ciphertxt[$b] = implode('', $cipherByte);  // escape troublesome characters in ciphertext
		}

		// implode is more efficient than repeated string concatenation
		$ciphertext = $ctrTxt . implode('', $ciphertxt);
		$ciphertext = base64_encode($ciphertext);

		return $ciphertext;
	}

	/**
	 * AES Cipher function: encrypt 'input' with Rijndael algorithm
	 *
	 * @param   array $input    Message as byte-array (16 bytes)
	 * @param   array $w        key schedule as 2D byte-array (Nr+1 x Nb bytes) -
	 *                          generated from the cipher key by KeyExpansion()
	 *
	 * @return  string  Ciphertext as byte-array (16 bytes)
	 */
	protected static function Cipher($input, $w)
	{    // main Cipher function [�5.1]
		$Nb = 4;                 // block size (in words): no of columns in state (fixed at 4 for AES)
		$Nr = count($w) / $Nb - 1; // no of rounds: 10/12/14 for 128/192/256-bit keys

		$state = array();  // initialise 4xNb byte-array 'state' with input [�3.4]
		for ($i = 0; $i < 4 * $Nb; $i++)
		{
			$state[$i % 4][floor($i / 4)] = $input[$i];
		}

		$state = self::AddRoundKey($state, $w, 0, $Nb);

		for ($round = 1; $round < $Nr; $round++)
		{  // apply Nr rounds
			$state = self::SubBytes($state, $Nb);
			$state = self::ShiftRows($state, $Nb);
			$state = self::MixColumns($state);
			$state = self::AddRoundKey($state, $w, $round, $Nb);
		}

		$state = self::SubBytes($state, $Nb);
		$state = self::ShiftRows($state, $Nb);
		$state = self::AddRoundKey($state, $w, $Nr, $Nb);

		$output = array(4 * $Nb);  // convert state to 1-d array before returning [�3.4]
		for ($i = 0; $i < 4 * $Nb; $i++)
		{
			$output[$i] = $state[$i % 4][floor($i / 4)];
		}

		return $output;
	}

	protected static function AddRoundKey($state, $w, $rnd, $Nb)
	{  // xor Round Key into state S [�5.1.4]
		for ($r = 0; $r < 4; $r++)
		{
			for ($c = 0; $c < $Nb; $c++)
			{
				$state[$r][$c] ^= $w[$rnd * 4 + $c][$r];
			}
		}

		return $state;
	}

	protected static function SubBytes($s, $Nb)
	{    // apply SBox to state S [�5.1.1]
		for ($r = 0; $r < 4; $r++)
		{
			for ($c = 0; $c < $Nb; $c++)
			{
				$s[$r][$c] = self::$Sbox[$s[$r][$c]];
			}
		}

		return $s;
	}

	protected static function ShiftRows($s, $Nb)
	{    // shift row r of state S left by r bytes [�5.1.2]
		$t = array(4);
		for ($r = 1; $r < 4; $r++)
		{
			for ($c = 0; $c < 4; $c++)
			{
				$t[$c] = $s[$r][($c + $r) % $Nb];
			}  // shift into temp copy
			for ($c = 0; $c < 4; $c++)
			{
				$s[$r][$c] = $t[$c];
			}         // and copy back
		}          // note that this will work for Nb=4,5,6, but not 7,8 (always 4 for AES):
		return $s;  // see fp.gladman.plus.com/cryptography_technology/rijndael/aes.spec.311.pdf
	}

	protected static function MixColumns($s)
	{
		// combine bytes of each col of state S [�5.1.3]
		for ($c = 0; $c < 4; $c++)
		{
			$a = array(4);  // 'a' is a copy of the current column from 's'
			$b = array(4);  // 'b' is a�{02} in GF(2^8)

			for ($i = 0; $i < 4; $i++)
			{
				$a[$i] = $s[$i][$c];
				$b[$i] = $s[$i][$c] & 0x80 ? $s[$i][$c] << 1 ^ 0x011b : $s[$i][$c] << 1;
			}

			// a[n] ^ b[n] is a�{03} in GF(2^8)
			$s[0][$c] = $b[0] ^ $a[1] ^ $b[1] ^ $a[2] ^ $a[3]; // 2*a0 + 3*a1 + a2 + a3
			$s[1][$c] = $a[0] ^ $b[1] ^ $a[2] ^ $b[2] ^ $a[3]; // a0 * 2*a1 + 3*a2 + a3
			$s[2][$c] = $a[0] ^ $a[1] ^ $b[2] ^ $a[3] ^ $b[3]; // a0 + a1 + 2*a2 + 3*a3
			$s[3][$c] = $a[0] ^ $b[0] ^ $a[1] ^ $a[2] ^ $b[3]; // 3*a0 + a1 + a2 + 2*a3
		}

		return $s;
	}

	/**
	 * Key expansion for Rijndael Cipher(): performs key expansion on cipher key
	 * to generate a key schedule
	 *
	 * @param   array $key Cipher key byte-array (16 bytes)
	 *
	 * @return  array  Key schedule as 2D byte-array (Nr+1 x Nb bytes)
	 */
	protected static function KeyExpansion($key)
	{
		// generate Key Schedule from Cipher Key [�5.2]

		// block size (in words): no of columns in state (fixed at 4 for AES)
		$Nb = 4;
		// key length (in words): 4/6/8 for 128/192/256-bit keys
		$Nk = (int) (count($key) / 4);
		// no of rounds: 10/12/14 for 128/192/256-bit keys
		$Nr = $Nk + 6;

		$w    = array();
		$temp = array();

		for ($i = 0; $i < $Nk; $i++)
		{
			$r     = array($key[4 * $i], $key[4 * $i + 1], $key[4 * $i + 2], $key[4 * $i + 3]);
			$w[$i] = $r;
		}

		for ($i = $Nk; $i < ($Nb * ($Nr + 1)); $i++)
		{
			$w[$i] = array();
			for ($t = 0; $t < 4; $t++)
			{
				$temp[$t] = $w[$i - 1][$t];
			}
			if ($i % $Nk == 0)
			{
				$temp = self::SubWord(self::RotWord($temp));
				for ($t = 0; $t < 4; $t++)
				{
					$rConIndex = (int) ($i / $Nk);
					$temp[$t] ^= self::$Rcon[$rConIndex][$t];
				}
			}
			else if ($Nk > 6 && $i % $Nk == 4)
			{
				$temp = self::SubWord($temp);
			}
			for ($t = 0; $t < 4; $t++)
			{
				$w[$i][$t] = $w[$i - $Nk][$t] ^ $temp[$t];
			}
		}

		return $w;
	}

	protected static function SubWord($w)
	{    // apply SBox to 4-byte word w
		for ($i = 0; $i < 4; $i++)
		{
			$w[$i] = self::$Sbox[$w[$i]];
		}

		return $w;
	}

	/*
	 * Unsigned right shift function, since PHP has neither >>> operator nor unsigned ints
	 *
	 * @param a  number to be shifted (32-bit integer)
	 * @param b  number of bits to shift a to the right (0..31)
	 * @return   a right-shifted and zero-filled by b bits
	 */

	protected static function RotWord($w)
	{    // rotate 4-byte word w left by one byte
		$tmp = $w[0];
		for ($i = 0; $i < 3; $i++)
		{
			$w[$i] = $w[$i + 1];
		}
		$w[3] = $tmp;

		return $w;
	}

	protected static function urs($a, $b)
	{
		$a &= 0xffffffff;
		$b &= 0x1f;  // (bounds check)
		if ($a & 0x80000000 && $b > 0)
		{   // if left-most bit set
			$a = ($a >> 1) & 0x7fffffff;   //   right-shift one bit & clear left-most bit
			$a = $a >> ($b - 1);           //   remaining right-shifts
		}
		else
		{                       // otherwise
			$a = ($a >> $b);               //   use normal right-shift
		}

		return $a;
	}

	/**
	 * Decrypt a text encrypted by AES in counter mode of operation
	 *
	 * @param   string  $ciphertext  Source text to be decrypted
	 * @param   string  $password    The password to use to generate a key
	 * @param   int     $nBits       Number of bits to be used in the key (128, 192, or 256)
	 *
	 * @return  string  Decrypted text
	 */
	public static function AESDecryptCtr($ciphertext, $password, $nBits)
	{
		$blockSize = 16;  // block size fixed at 16 bytes / 128 bits (Nb=4) for AES

		if (!($nBits == 128 || $nBits == 192 || $nBits == 256))
		{
			return '';
		}

		// standard allows 128/192/256 bit keys
		$ciphertext = base64_decode($ciphertext);

		// use AES to encrypt password (mirroring encrypt routine)
		$nBytes  = $nBits / 8;  // no bytes in key
		$pwBytes = array();

		for ($i = 0; $i < $nBytes; $i++)
		{
			$pwBytes[$i] = ord(substr($password, $i, 1)) & 0xff;
		}

		$key = self::Cipher($pwBytes, self::KeyExpansion($pwBytes));
		$key = array_merge($key, array_slice($key, 0, $nBytes - 16));  // expand key to 16/24/32 bytes long

		// recover nonce from 1st element of ciphertext
		$counterBlock = array();
		$ctrTxt       = substr($ciphertext, 0, 8);

		for ($i = 0; $i < 8; $i++)
		{
			$counterBlock[$i] = ord(substr($ctrTxt, $i, 1));
		}

		// generate key schedule
		$keySchedule = self::KeyExpansion($key);

		// separate ciphertext into blocks (skipping past initial 8 bytes)
		$nBlocks = ceil((strlen($ciphertext) - 8) / $blockSize);
		$ct      = array();

		for ($b = 0; $b < $nBlocks; $b++)
		{
			$ct[$b] = substr($ciphertext, 8 + $b * $blockSize, 16);
		}

		$ciphertext = $ct;  // ciphertext is now array of block-length strings

		// plaintext will get generated block-by-block into array of block-length strings
		$plaintxt = array();

		for ($b = 0; $b < $nBlocks; $b++)
		{
			// set counter (block #) in last 8 bytes of counter block (leaving nonce in 1st 8 bytes)
			for ($c = 0; $c < 4; $c++)
			{
				$counterBlock[15 - $c] = self::urs($b, $c * 8) & 0xff;
			}

			for ($c = 0; $c < 4; $c++)
			{
				$counterBlock[15 - $c - 4] = self::urs(($b + 1) / 0x100000000 - 1, $c * 8) & 0xff;
			}

			$cipherCntr = self::Cipher($counterBlock, $keySchedule);  // encrypt counter block

			$plaintxtByte = array();

			for ($i = 0; $i < strlen($ciphertext[$b]); $i++)
			{
				// -- xor plaintext with ciphered counter byte-by-byte --
				$plaintxtByte[$i] = $cipherCntr[$i] ^ ord(substr($ciphertext[$b], $i, 1));
				$plaintxtByte[$i] = chr($plaintxtByte[$i]);

			}

			$plaintxt[$b] = implode('', $plaintxtByte);
		}

		// join array of blocks into single plaintext string
		$plaintext = implode('', $plaintxt);

		return $plaintext;
	}

	/**
	 * AES decryption in CBC mode. This is the standard mode (the CTR methods
	 * actually use Rijndael-128 in CTR mode, which - technically - isn't AES).
	 *
	 * It supports AES-128 only. It assumes that the last 4 bytes
	 * contain a little-endian unsigned long integer representing the unpadded
	 * data length.
	 *
	 * @since  3.0.1
	 * @author Nicholas K. Dionysopoulos
	 *
	 * @param   string $ciphertext The data to encrypt
	 * @param   string $password   Encryption password
	 *
	 * @return  string  The plaintext
	 */
	public static function AESDecryptCBC($ciphertext, $password)
	{
		$adapter = self::getAdapter();

		if (!$adapter->isSupported())
		{
			return false;
		}

		// Read the data size
		$data_size = unpack('V', substr($ciphertext, -4));

		// Do I have a PBKDF2 salt?
		$salt             = substr($ciphertext, -92, 68);
		$rightStringLimit = -4;

		$params        = self::getKeyDerivationParameters();
		$keySizeBytes  = $params['keySize'];
		$algorithm     = $params['algorithm'];
		$iterations    = $params['iterations'];
		$useStaticSalt = $params['useStaticSalt'];

		if (substr($salt, 0, 4) == 'JPST')
		{
			// We have a stored salt. Retrieve it and tell decrypt to process the string minus the last 44 bytes
			// (4 bytes for JPST, 16 bytes for the salt, 4 bytes for JPIV, 16 bytes for the IV, 4 bytes for the
			// uncompressed string length - note that using PBKDF2 means we're also using a randomized IV per the
			// format specification).
			$salt             = substr($salt, 4);
			$rightStringLimit -= 68;

			$key          = self::pbkdf2($password, $salt, $algorithm, $iterations, $keySizeBytes);
		}
		elseif ($useStaticSalt)
		{
			// We have a static salt. Use it for PBKDF2.
			$key = self::getStaticSaltExpandedKey($password);
		}
		else
		{
			// Get the expanded key from the password. THIS USES THE OLD, INSECURE METHOD.
			$key = self::expandKey($password);
		}

		// Try to get the IV from the data
		$iv               = substr($ciphertext, -24, 20);

		if (substr($iv, 0, 4) == 'JPIV')
		{
			// We have a stored IV. Retrieve it and tell mdecrypt to process the string minus the last 24 bytes
			// (4 bytes for JPIV, 16 bytes for the IV, 4 bytes for the uncompressed string length)
			$iv               = substr($iv, 4);
			$rightStringLimit -= 20;
		}
		else
		{
			// No stored IV. Do it the dumb way.
			$iv = self::createTheWrongIV($password);
		}

		// Decrypt
		$plaintext = $adapter->decrypt($iv . substr($ciphertext, 0, $rightStringLimit), $key);

		// Trim padding, if necessary
		if (strlen($plaintext) > $data_size)
		{
			$plaintext = substr($plaintext, 0, $data_size);
		}

		return $plaintext;
	}

	/**
	 * That's the old way of creating an IV that's definitely not cryptographically sound.
	 *
	 * DO NOT USE, EVER, UNLESS YOU WANT TO DECRYPT LEGACY DATA
	 *
	 * @param   string $password The raw password from which we create an IV in a super bozo way
	 *
	 * @return  string  A 16-byte IV string
	 */
	public static function createTheWrongIV($password)
	{
		static $ivs = array();

		$key = md5($password);

		if (!isset($ivs[$key]))
		{
			$nBytes  = 16;  // AES uses a 128 -bit (16 byte) block size, hence the IV size is always 16 bytes
			$pwBytes = array();
			for ($i = 0; $i < $nBytes; $i++)
			{
				$pwBytes[$i] = ord(substr($password, $i, 1)) & 0xff;
			}
			$iv    = self::Cipher($pwBytes, self::KeyExpansion($pwBytes));
			$newIV = '';
			foreach ($iv as $int)
			{
				$newIV .= chr($int);
			}

			$ivs[$key] = $newIV;
		}

		return $ivs[$key];
	}

	/**
	 * Expand the password to an appropriate 128-bit encryption key
	 *
	 * @param   string $password
	 *
	 * @return  string
	 *
	 * @since   5.2.0
	 * @author  Nicholas K. Dionysopoulos
	 */
	public static function expandKey($password)
	{
		// Try to fetch cached key or create it if it doesn't exist
		$nBits     = 128;
		$lookupKey = md5($password . '-' . $nBits);

		if (array_key_exists($lookupKey, self::$passwords))
		{
			$key = self::$passwords[$lookupKey];

			return $key;
		}

		// use AES itself to encrypt password to get cipher key (using plain password as source for
		// key expansion) - gives us well encrypted key.
		$nBytes  = $nBits / 8; // Number of bytes in key
		$pwBytes = array();

		for ($i = 0; $i < $nBytes; $i++)
		{
			$pwBytes[$i] = ord(substr($password, $i, 1)) & 0xff;
		}

		$key    = self::Cipher($pwBytes, self::KeyExpansion($pwBytes));
		$key    = array_merge($key, array_slice($key, 0, $nBytes - 16)); // expand key to 16/24/32 bytes long
		$newKey = '';

		foreach ($key as $int)
		{
			$newKey .= chr($int);
		}

		$key = $newKey;

		self::$passwords[$lookupKey] = $key;

		return $key;
	}

	/**
	 * Returns the correct AES-128 CBC encryption adapter
	 *
	 * @return  AKEncryptionAESAdapterInterface
	 *
	 * @since   5.2.0
	 * @author  Nicholas K. Dionysopoulos
	 */
	public static function getAdapter()
	{
		static $adapter = null;

		if (is_object($adapter) && ($adapter instanceof AKEncryptionAESAdapterInterface))
		{
			return $adapter;
		}

		$adapter = new OpenSSL();

		if (!$adapter->isSupported())
		{
			$adapter = new Mcrypt();
		}

		return $adapter;
	}

	/**
	 * @return string
	 */
	public static function getPbkdf2Algorithm()
	{
		return self::$pbkdf2Algorithm;
	}

	/**
	 * @param string $pbkdf2Algorithm
	 * @return void
	 */
	public static function setPbkdf2Algorithm($pbkdf2Algorithm)
	{
		self::$pbkdf2Algorithm = $pbkdf2Algorithm;
	}

	/**
	 * @return int
	 */
	public static function getPbkdf2Iterations()
	{
		return self::$pbkdf2Iterations;
	}

	/**
	 * @param int $pbkdf2Iterations
	 * @return void
	 */
	public static function setPbkdf2Iterations($pbkdf2Iterations)
	{
		self::$pbkdf2Iterations = $pbkdf2Iterations;
	}

	/**
	 * @return int
	 */
	public static function getPbkdf2UseStaticSalt()
	{
		return self::$pbkdf2UseStaticSalt;
	}

	/**
	 * @param int $pbkdf2UseStaticSalt
	 * @return void
	 */
	public static function setPbkdf2UseStaticSalt($pbkdf2UseStaticSalt)
	{
		self::$pbkdf2UseStaticSalt = $pbkdf2UseStaticSalt;
	}

	/**
	 * @return string
	 */
	public static function getPbkdf2StaticSalt()
	{
		return self::$pbkdf2StaticSalt;
	}

	/**
	 * @param string $pbkdf2StaticSalt
	 * @return void
	 */
	public static function setPbkdf2StaticSalt($pbkdf2StaticSalt)
	{
		self::$pbkdf2StaticSalt = $pbkdf2StaticSalt;
	}

	/**
	 * Get the parameters fed into PBKDF2 to expand the user password into an encryption key. These are the static
	 * parameters (key size, hashing algorithm and number of iterations). A new salt is used for each encryption block
	 * to minimize the risk of attacks against the password.
	 *
	 * @return  array
	 */
	public static function getKeyDerivationParameters()
	{
		return array(
			'keySize'       => 16,
			'algorithm'     => self::$pbkdf2Algorithm,
			'iterations'    => self::$pbkdf2Iterations,
			'useStaticSalt' => self::$pbkdf2UseStaticSalt,
			'staticSalt'    => self::$pbkdf2StaticSalt,
		);
	}

	/**
	 * PBKDF2 key derivation function as defined by RSA's PKCS #5: https://www.ietf.org/rfc/rfc2898.txt
	 *
	 * Test vectors can be found here: https://www.ietf.org/rfc/rfc6070.txt
	 *
	 * This implementation of PBKDF2 was originally created by https://defuse.ca
	 * With improvements by http://www.variations-of-shadow.com
	 * Modified for Akeeba Engine by Akeeba Ltd (removed unnecessary checks to make it faster)
	 *
	 * @param   string  $password    The password.
	 * @param   string  $salt        A salt that is unique to the password.
	 * @param   string  $algorithm   The hash algorithm to use. Default is sha1.
	 * @param   int     $count       Iteration count. Higher is better, but slower. Default: 1000.
	 * @param   int     $key_length  The length of the derived key in bytes.
	 *
	 * @return  string  A string of $key_length bytes
	 */
	public static function pbkdf2($password, $salt, $algorithm = 'sha1', $count = 1000, $key_length = 16)
	{
		if (function_exists("hash_pbkdf2"))
		{
			return hash_pbkdf2($algorithm, $password, $salt, $count, $key_length, true);
		}

		$hash_length = akstringlen(hash($algorithm, "", true));
		$block_count = ceil($key_length / $hash_length);

		$output = "";

		for ($i = 1; $i <= $block_count; $i++)
		{
			// $i encoded as 4 bytes, big endian.
			$last = $salt . pack("N", $i);

			// First iteration
			$xorResult = hash_hmac($algorithm, $last, $password, true);
			$last      = $xorResult;

			// Perform the other $count - 1 iterations
			for ($j = 1; $j < $count; $j++)
			{
				$last = hash_hmac($algorithm, $last, $password, true);
				$xorResult ^= $last;
			}

			$output .= $xorResult;
		}

		return aksubstr($output, 0, $key_length);
	}

	/**
	 * Get the expanded key from the user supplied password using a static salt. The results are cached for performance
	 * reasons.
	 *
	 * @param   string  $password  The user-supplied password, UTF-8 encoded.
	 *
	 * @return  string  The expanded key
	 */
	private static function getStaticSaltExpandedKey($password)
	{
		$params        = self::getKeyDerivationParameters();
		$keySizeBytes  = $params['keySize'];
		$algorithm     = $params['algorithm'];
		$iterations    = $params['iterations'];
		$staticSalt    = $params['staticSalt'];

		$lookupKey = "PBKDF2-$algorithm-$iterations-" . md5($password . $staticSalt);

		if (!array_key_exists($lookupKey, self::$passwords))
		{
			self::$passwords[$lookupKey] = self::pbkdf2($password, $staticSalt, $algorithm, $iterations, $keySizeBytes);
		}

		return self::$passwords[$lookupKey];
	}

}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * The Master Setup will read the configuration parameters from restoration.php or
 * the JSON-encoded "configuration" input variable and return the status.
 *
 * @return bool True if the master configuration was applied to the Factory object
 */
function masterSetup()
{
	// ------------------------------------------------------------
	// 1. Import basic setup parameters
	// ------------------------------------------------------------

	$ini_data = null;

	// In restore.php mode, require restoration.php or fail
	if (!defined('KICKSTART'))
	{
		// This is the standalone mode, used by Akeeba Backup Professional. It looks for a restoration.php
		// file to perform its magic. If the file is not there, we will abort.
		$setupFile = 'restoration.php';

		if (!file_exists($setupFile))
		{
			AKFactory::set('kickstart.enabled', false);

			return false;
		}

		// Load restoration.php. It creates a global variable named $restoration_setup
		require_once $setupFile;

		$ini_data = $restoration_setup;

		if (empty($ini_data))
		{
			// No parameters fetched. Darn, how am I supposed to work like that?!
			AKFactory::set('kickstart.enabled', false);

			return false;
		}

		AKFactory::set('kickstart.enabled', true);
	}
	else
	{
		// Maybe we have $restoration_setup defined in the head of kickstart.php
		global $restoration_setup;

		if (!empty($restoration_setup) && !is_array($restoration_setup))
		{
			$ini_data = AKText::parse_ini_file($restoration_setup, false, true);
		}
		elseif (is_array($restoration_setup))
		{
			$ini_data = $restoration_setup;
		}
	}

	// Import any data from $restoration_setup
	if (!empty($ini_data))
	{
		foreach ($ini_data as $key => $value)
		{
			AKFactory::set($key, $value);
		}
		AKFactory::set('kickstart.enabled', true);
	}

	// Reinitialize $ini_data
	$ini_data = null;

	// ------------------------------------------------------------
	// 2. Explode JSON parameters into $_REQUEST scope
	// ------------------------------------------------------------

	// Detect a JSON string in the request variable and store it.
	$json = getQueryParam('json', null);

	// Remove everything from the request, post and get arrays
	if (!empty($_REQUEST))
	{
		foreach ($_REQUEST as $key => $value)
		{
			unset($_REQUEST[$key]);
		}
	}

	if (!empty($_POST))
	{
		foreach ($_POST as $key => $value)
		{
			unset($_POST[$key]);
		}
	}

	if (!empty($_GET))
	{
		foreach ($_GET as $key => $value)
		{
			unset($_GET[$key]);
		}
	}

	// Decrypt a possibly encrypted JSON string
	$password = AKFactory::get('kickstart.security.password', null);

	if (!empty($json))
	{
		if (!empty($password))
		{
			$json = AKEncryptionAES::AESDecryptCtr($json, $password, 128);

			if (empty($json))
			{
				die('###{"status":false,"message":"Invalid login"}###');
			}
		}

		// Get the raw data
		$raw = json_decode($json, true);

		if (!empty($password) && (empty($raw)))
		{
			die('###{"status":false,"message":"Invalid login"}###');
		}

		// Pass all JSON data to the request array
		if (!empty($raw))
		{
			foreach ($raw as $key => $value)
			{
				$_REQUEST[$key] = $value;
			}
		}
	}
	elseif (!empty($password))
	{
		die('###{"status":false,"message":"Invalid login"}###');
	}

	// ------------------------------------------------------------
	// 3. Try the "factory" variable
	// ------------------------------------------------------------
	// A "factory" variable will override all other settings.
	$serialized = getQueryParam('factory', null);

	if (!is_null($serialized))
	{
		// Get the serialized factory
		AKFactory::unserialize($serialized);
		AKFactory::set('kickstart.enabled', true);

		return true;
	}

	// ------------------------------------------------------------
	// 4. Try the configuration variable for Kickstart
	// ------------------------------------------------------------
	if (defined('KICKSTART'))
	{
		$configuration = getQueryParam('configuration');

		if (!is_null($configuration))
		{
			// Let's decode the configuration from JSON to array
			$ini_data = json_decode($configuration, true);
		}
		else
		{
			// Neither exists. Enable Kickstart's interface anyway.
			$ini_data = array('kickstart.enabled' => true);
		}

		// Import any INI data we might have from other sources
		if (!empty($ini_data))
		{
			foreach ($ini_data as $key => $value)
			{
				AKFactory::set($key, $value);
			}

			AKFactory::set('kickstart.enabled', true);

			return true;
		}
	}
}

/**
 * Akeeba Restore
 * A JSON-powered JPA, JPS and ZIP archive extraction library
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / Akeeba Ltd.
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

// Mini-controller for restore.php
if (!defined('KICKSTART'))
{
	// The observer class, used to report number of files and bytes processed
	class RestorationObserver extends AKAbstractPartObserver
	{
		public $compressedTotal = 0;
		public $uncompressedTotal = 0;
		public $filesProcessed = 0;

		public function update($object, $message)
		{
			if (!is_object($message))
			{
				return;
			}

			if (!array_key_exists('type', get_object_vars($message)))
			{
				return;
			}

			if ($message->type == 'startfile')
			{
				$this->filesProcessed++;
				$this->compressedTotal += $message->content->compressed;
				$this->uncompressedTotal += $message->content->uncompressed;
			}
		}

		public function __toString()
		{
			return __CLASS__;
		}

	}

	// Import configuration
	masterSetup();

	$retArray = array(
		'status'  => true,
		'message' => null
	);

	$enabled = AKFactory::get('kickstart.enabled', false);

	if ($enabled)
	{
		$task = getQueryParam('task');

		switch ($task)
		{
			case 'ping':
				// ping task - realy does nothing!
				$timer = AKFactory::getTimer();
				$timer->enforce_min_exec_time();
				break;

			/**
			 * There are two separate steps here since we were using an inefficient restoration intialization method in
			 * the past. Now both startRestore and stepRestore are identical. The difference in behavior depends
			 * exclusively on the calling Javascript. If no serialized factory was passed in the request then we start a
			 * new restoration. If a serialized factory was passed in the request then the restoration is resumed. For
			 * this reason we should NEVER call AKFactory::nuke() in startRestore anymore: that would simply reset the
			 * extraction engine configuration which was done in masterSetup() leading to an error about the file being
			 * invalid (since no file is found).
			 */
			case 'startRestore':
			case 'stepRestore':
				$engine   = AKFactory::getUnarchiver(); // Get the engine
				$observer = new RestorationObserver(); // Create a new observer
				$engine->attach($observer); // Attach the observer
				$engine->tick();
				$ret = $engine->getStatusArray();

				if ($ret['Error'] != '')
				{
					$retArray['status']  = false;
					$retArray['done']    = true;
					$retArray['message'] = $ret['Error'];
				}
				elseif (!$ret['HasRun'])
				{
					$retArray['files']    = $observer->filesProcessed;
					$retArray['bytesIn']  = $observer->compressedTotal;
					$retArray['bytesOut'] = $observer->uncompressedTotal;
					$retArray['status']   = true;
					$retArray['done']     = true;
				}
				else
				{
					$retArray['files']    = $observer->filesProcessed;
					$retArray['bytesIn']  = $observer->compressedTotal;
					$retArray['bytesOut'] = $observer->uncompressedTotal;
					$retArray['status']   = true;
					$retArray['done']     = false;
					$retArray['factory']  = AKFactory::serialize();
				}
				break;

			case 'finalizeRestore':
				$root = AKFactory::get('kickstart.setup.destdir');
				// Remove the installation directory
				recursive_remove_directory($root . '/installation');

				$postproc = AKFactory::getPostProc();

				// Rename htaccess.bak to .htaccess
				if (file_exists($root . '/htaccess.bak'))
				{
					if (file_exists($root . '/.htaccess'))
					{
						$postproc->unlink($root . '/.htaccess');
					}
					$postproc->rename($root . '/htaccess.bak', $root . '/.htaccess');
				}

				// Rename htaccess.bak to .htaccess
				if (file_exists($root . '/web.config.bak'))
				{
					if (file_exists($root . '/web.config'))
					{
						$postproc->unlink($root . '/web.config');
					}
					$postproc->rename($root . '/web.config.bak', $root . '/web.config');
				}

				// Remove restoration.php
				$basepath = KSROOTDIR;
				$basepath = rtrim(str_replace('\\', '/', $basepath), '/');
				if (!empty($basepath))
				{
					$basepath .= '/';
				}
				$postproc->unlink($basepath . 'restoration.php');

				// Import a custom finalisation file
				$filename = dirname(__FILE__) . '/restore_finalisation.php';
				if (file_exists($filename))
				{
					// opcode cache busting before including the filename
					if (function_exists('opcache_invalidate'))
					{
						opcache_invalidate($filename);
					}
					if (function_exists('apc_compile_file'))
					{
						apc_compile_file($filename);
					}
					if (function_exists('wincache_refresh_if_changed'))
					{
						wincache_refresh_if_changed(array($filename));
					}
					if (function_exists('xcache_asm'))
					{
						xcache_asm($filename);
					}
					include_once $filename;
				}

				// Run a custom finalisation script
				if (function_exists('finalizeRestore'))
				{
					finalizeRestore($root, $basepath);
				}
				break;

			default:
				// Invalid task!
				$enabled = false;
				break;
		}
	}

	// Maybe we weren't authorized or the task was invalid?
	if (!$enabled)
	{
		// Maybe the user failed to enter any information
		$retArray['status']  = false;
		$retArray['message'] = AKText::_('ERR_INVALID_LOGIN');
	}

	// JSON encode the message
	$json = json_encode($retArray);
	// Do I have to encrypt?
	$password = AKFactory::get('kickstart.security.password', null);
	if (!empty($password))
	{
		$json = AKEncryptionAES::AESEncryptCtr($json, $password, 128);
	}

	// Return the message
	echo "###$json###";

}

// ------------ lixlpixel recursive PHP functions -------------
// recursive_remove_directory( directory to delete, empty )
// expects path to directory and optional TRUE / FALSE to empty
// of course PHP has to have the rights to delete the directory
// you specify and all files and folders inside the directory
// ------------------------------------------------------------
function recursive_remove_directory($directory)
{
	// if the path has a slash at the end we remove it here
	if (substr($directory, -1) == '/')
	{
		$directory = substr($directory, 0, -1);
	}
	// if the path is not valid or is not a directory ...
	if (!file_exists($directory) || !is_dir($directory))
	{
		// ... we return false and exit the function
		return false;
		// ... if the path is not readable
	}
	elseif (!is_readable($directory))
	{
		// ... we return false and exit the function
		return false;
		// ... else if the path is readable
	}
	else
	{
		// we open the directory
		$handle   = opendir($directory);
		$postproc = AKFactory::getPostProc();
		// and scan through the items inside
		while (false !== ($item = readdir($handle)))
		{
			// if the filepointer is not the current directory
			// or the parent directory
			if ($item != '.' && $item != '..')
			{
				// we build the new path to delete
				$path = $directory . '/' . $item;
				// if the new path is a directory
				if (is_dir($path))
				{
					// we call this function with the new path
					recursive_remove_directory($path);
					// if the new path is a file
				}
				else
				{
					// we remove the file
					$postproc->unlink($path);
				}
			}
		}
		// close the directory
		closedir($handle);
		// try to delete the now empty directory
		if (!$postproc->rmdir($directory))
		{
			// return false if not possible
			return false;
		}

		// return success
		return true;
	}
}


/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */
class AKKickstartUtils
{
	/**
	 * Guess the best path containing backup archives. The default strategy is check in the current directory first,
	 * then attempt to find an Akeeba Backup for Joomla!, Akeeba Solo or Akeeba Backup for WordPress default backup
	 * output directory under the current root. The first one containing backup archives wins.
	 *
	 * @return string The path to get archives from
	 */
	public static function getBestArchivePath()
	{
		$basePath      = self::getPath();
		$basePathSlash = (empty($basePath) ? '.' : rtrim($basePath, '/\\')) . '/';

		$paths = array(
			// Root, same as the directory we're in
			$basePath,
			// Standard temporary directory
			$basePath . '/kicktemp',
			// Akeeba Backup for Joomla!, default output directory
			$basePathSlash . 'administrator/components/com_akeeba/backup',
			// Akeeba Solo, default output directory
			$basePathSlash . 'backups',
			// Akeeba Backup for WordPress, default output directory
			$basePathSlash . 'wp-content/plugins/akeebabackupwp/app/backups',
		);

		foreach ($paths as $path)
		{
			$archives = self::findArchives($path);

			if (!empty($archives))
			{
				return $path;
			}
		}

		return $basePath;
	}

	/**
	 * Gets the directory the file is in
	 *
	 * @return string
	 */
	public static function getPath()
	{
		$path = KSROOTDIR;
		$path = rtrim(str_replace('\\', '/', $path), '/');
		if (!empty($path))
		{
			$path .= '/';
		}

		return $path;
	}

	/**
	 * Scans the current directory for archive files (JPA, JPS and ZIP format)
	 *
	 * @param string $path The path to look for archives. null for automatic path
	 *
	 * @return array
	 */
	public static function findArchives($path)
	{
		$ret = array();

		if (empty($path))
		{
			$path = self::getPath();
		}

		if (empty($path))
		{
			$path = '.';
		}

		$dh = @opendir($path);

		if ($dh === false)
		{
			return $ret;
		}

		while (false !== $file = @readdir($dh))
		{
			$dotpos = strrpos($file, '.');

			if ($dotpos === false)
			{
				continue;
			}

			if ($dotpos == strlen($file))
			{
				continue;
			}

			$extension = strtolower(substr($file, $dotpos + 1));

			if (in_array($extension, array('jpa', 'zip', 'jps')))
			{
				$ret[] = $file;
			}
		}

		closedir($dh);

		if (!empty($ret))
		{
			return $ret;
		}

		// On some hosts using opendir doesn't work. Let's try Dir instead
		$d = dir($path);

		while (false != ($file = $d->read()))
		{
			$dotpos = strrpos($file, '.');

			if ($dotpos === false)
			{
				continue;
			}

			if ($dotpos == strlen($file))
			{
				continue;
			}

			$extension = strtolower(substr($file, $dotpos + 1));

			if (in_array($extension, array('jpa', 'zip', 'jps')))
			{
				$ret[] = $file;
			}
		}

		return $ret;
	}

	/**
	 * Gets the most appropriate temporary path
	 *
	 * @return string
	 */
	public static function getTemporaryPath()
	{
		$path = self::getPath();

		$candidateDirs = array(
			$path,
			$path . '/kicktemp',
		);

		if (function_exists('sys_get_temp_dir'))
		{
			$candidateDirs[] = sys_get_temp_dir();
		}

		foreach ($candidateDirs as $dir)
		{
			if (is_dir($dir) && is_writable($dir))
			{
				return $dir;
			}
		}

		// Failsafe
		return $path;
	}

	/**
	 * Scans the current directory for archive files and returns them as <OPTION> tags
	 *
	 * @param string $path The path to look for archives. null for automatic path
	 *
	 * @return string
	 */
	public static function getArchivesAsOptions($path = null)
	{
		$ret = '';

		$archives = self::findArchives($path);

		if (empty($archives))
		{
			return $ret;
		}

		foreach ($archives as $file)
		{
			//$file = htmlentities($file);
			$ret .= '<option value="' . $file . '">' . $file . '</option>' . "\n";
		}

		return $ret;
	}
}


/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */
class ExtractionObserver extends AKAbstractPartObserver
{
	public $compressedTotal = 0;
	public $uncompressedTotal = 0;
	public $filesProcessed = 0;
	public $totalSize = null;
	public $fileList = null;
	public $lastFile = '';

	public function update($object, $message)
	{
		if (!is_object($message))
		{
			return;
		}

		if (!array_key_exists('type', get_object_vars($message)))
		{
			return;
		}

		switch ($message->type)
		{
			// Sent when we read the list of archive parts and their total size
			case 'totalsize':
				$this->totalSize = $message->content->totalsize;
				$this->fileList  = $message->content->filelist;
				break;

			// Sent when a file header is read from the archive
			case 'startfile':
				$this->lastFile = $message->content->file;
				$this->filesProcessed++;
				$this->compressedTotal += $message->content->compressed;
				$this->uncompressedTotal += $message->content->uncompressed;
				break;
		}

	}

	public function __toString()
	{
		return __CLASS__;
	}

}

/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

function callExtraFeature($method = null, array $params = array())
{
	static $extraFeatureObjects = null;

	if (!is_array($extraFeatureObjects))
	{
		$extraFeatureObjects = array();
		$allClasses          = get_declared_classes();
		foreach ($allClasses as $class)
		{
			if (substr($class, 0, 9) == 'AKFeature')
			{
				$extraFeatureObjects[] = new $class;
			}
		}
	}

	if (is_null($method))
	{
		return;
	}

	if (empty($extraFeatureObjects))
	{
		return;
	}

	$result = null;
	foreach ($extraFeatureObjects as $o)
	{
		if (!method_exists($o, $method))
		{
			continue;
		}
		$result = call_user_func(array($o, $method), $params);
	}

	return $result;
}

/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

function TranslateWinPath($p_path)
{
	$is_unc = false;

	if (KSWINDOWS)
	{
		// Is this a UNC path?
		$is_unc = (substr($p_path, 0, 2) == '\\\\') || (substr($p_path, 0, 2) == '//');
		// Change potential windows directory separator
		if ((strpos($p_path, '\\') > 0) || (substr($p_path, 0, 1) == '\\'))
		{
			$p_path = strtr($p_path, '\\', '/');
		}
	}

	// Remove multiple slashes
	$p_path = str_replace('///', '/', $p_path);
	$p_path = str_replace('//', '/', $p_path);

	// Fix UNC paths
	if ($is_unc)
	{
		$p_path = '//' . ltrim($p_path, '/');
	}

	return $p_path;
}


/**
 * FTP Functions
 */
function getListing($directory, $host, $port, $username, $password, $passive, $ssl)
{
	$directory = resolvePath($directory);
	$dir       = $directory;

	// Parse directory to parts
	$parsed_dir = trim($dir, '/');
	$parts      = empty($parsed_dir) ? array() : explode('/', $parsed_dir);

	// Find the path to the parent directory
	if (!empty($parts))
	{
		$copy_of_parts = $parts;
		array_pop($copy_of_parts);
		if (!empty($copy_of_parts))
		{
			$parent_directory = '/' . implode('/', $copy_of_parts);
		}
		else
		{
			$parent_directory = '/';
		}
	}
	else
	{
		$parent_directory = '';
	}

	// Connect to the server
	if ($ssl)
	{
		$con = @ftp_ssl_connect($host, $port);
	}
	else
	{
		$con = @ftp_connect($host, $port);
	}
	if ($con === false)
	{
		return array(
			'error' => 'FTPBROWSER_ERROR_HOSTNAME'
		);
	}

	// Login
	$result = @ftp_login($con, $username, $password);
	if ($result === false)
	{
		return array(
			'error' => 'FTPBROWSER_ERROR_USERPASS'
		);
	}

	// Set the passive mode -- don't care if it fails, though!
	@ftp_pasv($con, $passive);

	// Try to chdir to the specified directory
	if (!empty($dir))
	{
		$result = @ftp_chdir($con, $dir);
		if ($result === false)
		{
			return array(
				'error' => 'FTPBROWSER_ERROR_NOACCESS'
			);
		}
	}
	else
	{
		$directory = @ftp_pwd($con);

		$parsed_dir       = trim($directory, '/');
		$parts            = empty($parsed_dir) ? array() : explode('/', $parsed_dir);
		$parent_directory = $this->directory;
	}

	// Get a raw directory listing (hoping it's a UNIX server!)
	$list = @ftp_rawlist($con, '.');
	ftp_close($con);

	if ($list === false)
	{
		return array(
			'error' => 'FTPBROWSER_ERROR_UNSUPPORTED'
		);
	}

	// Parse the raw listing into an array
	$folders = parse_rawlist($list);

	return array(
		'error'       => '',
		'list'        => $folders,
		'breadcrumbs' => $parts,
		'directory'   => $directory,
		'parent'      => $parent_directory
	);
}

function parse_rawlist($list)
{
	$folders = array();
	foreach ($list as $v)
	{
		$info  = array();
		$vinfo = preg_split("/[\s]+/", $v, 9);
		if ($vinfo[0] !== "total")
		{
			$perms = $vinfo[0];
			if (substr($perms, 0, 1) == 'd')
			{
				$folders[] = $vinfo[8];
			}
		}
	}

	asort($folders);

	return $folders;
}

function getSftpListing($directory, $host, $port, $username, $password)
{
	$directory = resolvePath($directory);
	$dir       = $directory;

	// Parse directory to parts
	$parsed_dir = trim($dir, '/');
	$parts      = empty($parsed_dir) ? array() : explode('/', $parsed_dir);

	// Find the path to the parent directory
	if (!empty($parts))
	{
		$copy_of_parts = $parts;
		array_pop($copy_of_parts);
		if (!empty($copy_of_parts))
		{
			$parent_directory = '/' . implode('/', $copy_of_parts);
		}
		else
		{
			$parent_directory = '/';
		}
	}
	else
	{
		$parent_directory = '';
	}

	// Initialise
	$connection = null;
	$sftphandle = null;

	// Open a connection
	if (!function_exists('ssh2_connect'))
	{
		return array(
			'error' => AKText::_('SFTP_NO_SSH2')
		);
	}

	$connection = ssh2_connect($host, $port);

	if ($connection === false)
	{
		return array(
			'error' => AKText::_('SFTP_WRONG_USER')
		);
	}

	if (!ssh2_auth_password($connection, $username, $password))
	{
		return array(
			'error' => AKText::_('SFTP_WRONG_USER')
		);
	}

	$sftphandle = ssh2_sftp($connection);

	if ($sftphandle === false)
	{
		return array(
			'error' => AKText::_('SFTP_NO_FTP_SUPPORT')
		);
	}

	// Get a raw directory listing (hoping it's a UNIX server!)
	$list = array();
	$dir  = ltrim($dir, '/');

	if (empty($dir))
	{
		$dir       = ssh2_sftp_realpath($sftphandle, ".");
		$directory = $dir;

		// Parse directory to parts
		$parsed_dir = trim($dir, '/');
		$parts      = empty($parsed_dir) ? array() : explode('/', $parsed_dir);

		// Find the path to the parent directory
		if (!empty($parts))
		{
			$copy_of_parts = $parts;
			array_pop($copy_of_parts);

			if (!empty($copy_of_parts))
			{
				$parent_directory = '/' . implode('/', $copy_of_parts);
			}
			else
			{
				$parent_directory = '/';
			}
		}
		else
		{
			$parent_directory = '';
		}
	}

	$handle = opendir("ssh2.sftp://$sftphandle/$dir");

	if (!is_resource($handle))
	{
		return array(
			'error' => AKText::_('SFTPBROWSER_ERROR_NOACCESS')
		);
	}

	while (($entry = readdir($handle)) !== false)
	{
		if (!is_dir("ssh2.sftp://$sftphandle/$dir/$entry"))
		{
			continue;
		}

		$list[] = $entry;
	}

	closedir($handle);

	if (!empty($list))
	{
		asort($list);
	}

	return array(
		'error'       => '',
		'list'        => $list,
		'breadcrumbs' => $parts,
		'directory'   => $directory,
		'parent'      => $parent_directory
	);
}

/**
 * Simple function to resolve relative paths.
 * Note that it is unable to resolve pathnames any higher than the present working directory.
 * I.E. It doesn't know about any directory names that you don't tell it about; hence: ../../foo becomes foo.
 *
 * @param $filename
 *
 * @return string
 */
function resolvePath($filename)
{
	$filename = str_replace('//', '/', $filename);
	$parts    = explode('/', $filename);
	$out      = array();
	foreach ($parts as $part)
	{
		if ($part == '.')
		{
			continue;
		}
		if ($part == '..')
		{
			array_pop($out);
			continue;
		}
		$out[] = $part;
	}

	return implode('/', $out);
}

function createStealthURL()
{
	$filename = AKFactory::get('kickstart.stealth.url', '');
	// We need an HTML file!
	if (empty($filename))
	{
		return;
	}
	// Make sure it ends in .html or .htm
	$filename = basename($filename);
	if ((strtolower(substr($filename, -5)) != '.html') && (strtolower(substr($filename, -4)) != '.htm'))
	{
		return;
	}

	$filename_quoted = str_replace('.', '\\.', $filename);
	$rewrite_base    = trim(dirname(AKFactory::get('kickstart.stealth.url', '')), '/');

	// Get the IP
	$userIP = $_SERVER['REMOTE_ADDR'];
	$userIP = str_replace('.', '\.', $userIP);

	// Get the .htaccess contents
	$stealthHtaccess = <<<ENDHTACCESS
RewriteEngine On
RewriteBase /$rewrite_base
RewriteCond %{REMOTE_ADDR}		!$userIP
RewriteCond %{REQUEST_URI}		!$filename_quoted
RewriteCond %{REQUEST_URI}		!(\.png|\.jpg|\.gif|\.jpeg|\.bmp|\.swf|\.css|\.js)$
RewriteRule (.*)				$filename	[R=307,L]

ENDHTACCESS;

	// Write the new .htaccess, removing the old one first
	$postproc = AKFactory::getpostProc();
	$postproc->unlink('.htaccess');
	$tempfile = $postproc->processFilename('.htaccess');
	@file_put_contents($tempfile, $stealthHtaccess);
	$postproc->process();
}

/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

function echoCSS()
{
	echo <<<CSS

html {
    background: #f0f0f0;
    font-size: 62.5%;
}

body {
	font-size: 12pt;
    font-family: Calibri, "Helvetica Neue", Helvetica, Arial, sans-serif;
	text-rendering: optimizeLegibility;
	background: transparent;
	color:#555;
	width:100%;
	max-width:980px;
	margin: 0 auto;
}

#page-container {
	position:relative;
	margin:5% 0;
	background: #f9f9f9;
	border: medium solid #ddd;
}

#header {
	color: #555;
	background: #eaeaea;
	background-clip: padding-box;
	margin-bottom: 0.7em;
	border-bottom: 2px solid #ddd;
	padding:.25em;
    font-size: 24pt;
	line-height: 1.2;
	text-align: center;
}

#footer {
	font-size: 9pt;
	color: #999;
	text-align: center;
	border-top: 1px solid #ddd;
	padding: 1em 1em;
	background: #eaeaea;
	clear: both;
}

#footer a {
	color: #88a;
	text-decoration: none;
}

#error, .error {
	x-display: none;
	border: solid #cc0000;
	border-width: 4px 0;
	background: rgb(255,255,136);
	color: #990000;
	padding:1em 2em;
	margin-bottom: 1.15em;
	text-align:center;
}

#error h3, .error h3 {
	margin: 0;
	padding: 0;
	font-size: 12pt;
}

.clr {
	clear: both;
}

.circle {
	display: block;
	float: left;
	border-radius: 2em;
	border: 2px solid #e5e5e5;
	font-weight: bold;
	font-size: 14pt;
	line-height:1.5em;
	color: #fff;
	height: 1.5em;
	width: 1.5em;
    margin: 0.75em;
    text-align: center;
    background: rgb(35,83,138);
}

.area-container {
	margin: 1em 2em;
}

#page2a .area-container {
	margin: 1em 0;
}

#runInstaller,
#runCleanup,
#gotoSite,
#gotoAdministrator,
#gotoPostRestorationRroubleshooting {
    margin: 0 2em 1.3em;
}

h2 {
	font-size: 18pt;
	font-weight: normal;
    line-height: 1.3;
	border: solid #ddd;
	border-left:none;
	border-right:none;
	padding: 0.5em 0;
    background: #eaeaea;
}

#preextraction h2 {
	margin-top:0;
	border-top:0;
	text-align:center;
}

input,
select,
textarea {
    font-size : 100%;
    margin : 0;
    vertical-align : baseline;
    *vertical-align: middle;
}

button,
input {
    line-height : normal;
	font-weight:normal;
    *overflow: visible;
}

input,
select,
textarea {
	background:#fff;
	color:#777;
	font-size: 12pt;
	border:1px solid #d5d5d5;
    border-radius: .25em;
    box-sizing: border-box;
	width:50%;
	padding:0 0 0 .5em;
}

input[type="checkbox"] {
	width:auto;
}

.field {
	height:1.5em;
}

label {
	display:inline-block;
	width:30%;
	font-size: 95%;
    font-weight: normal;
    cursor : pointer;
	color: #333;
	margin:.5em 0;
}

input:focus, input:hover {
	background-color: #f6f6ff;
}

.button {
	display: inline-block;
	margin: 1em .25em;
	padding: 1em 2em;
	background: #2cb12c;
	color:#fff;
	border: 1px solid #ccc;
	cursor: pointer;
	border-radius: .25em;
  	transition: 0.3s linear all;
}

#checkFTPTempDir.button,
#resetFTPTempDir.button,
#testFTP.button,
#browseFTP,
#reloadArchives,
#notWorking.button {
	padding: .5em 1em;
}

.button:hover {
	background: #259625;
}

.button:active {
	background: #3c3;
	border: 1px solid #eaeaea;
	border-radius: .25em;
}

#notWorking.button, .bluebutton {
	text-decoration: none;
	background: #66a8ff;
}
#notWorking.button:hover, .bluebutton:hover {
	background: #4096ee;
}
#notWorking.button:active, .bluebutton:active {
	background: #7abcff;
}

.loprofile {
	padding: 0.5em 1em;
	font-size: 80%;
}

.black_overlay{
	display: none;
	position: absolute;
	top: 0%;
	left: 0%;
	width: 100%;
	height: 100%;
	background-color: black;
	z-index:1001;
	-moz-opacity: 0.8;
	opacity:.80;
	filter: alpha(opacity=80);
}

.white_content {
	display: none;
	position: absolute;
	padding: 0 0 1em;
	background: #fff;
	border: 1px solid #ddd;
	border: 1px solid rgba(0,0,0,.3);
	z-index:1002;
	overflow: hidden;
}
.white_content a{
	margin-left:4em;
}
ol {
	margin:0 2em;
	padding:0 2em 1em;
}
li {
	margin : 0 0 .5em;
}

#genericerror {
	background-color: #f0f000 !important;
	border: 4px solid #fcc !important;
}

#genericerrorInner {
	font-size: 110%;
	color: #33000;
}

#warn-not-close, .warn-not-close {
	padding: 0.2em 0.5em;
	text-align: center;
	background: #fcfc00;
	font-size: smaller;
	font-weight: bold;
}

#progressbar, .progressbar {
	display: block;
	width: 80%;
	height: 32px;
	border: 1px solid #ccc;
	margin: 1em 10% 0.2em;
	border-radius: .25em;
}

#progressbar-inner, .progressbar-inner {
	display: block;
	width: 100%;
	height: 100%;
	background: #4096ee;
}

#currentFile {
	font-family: Consolas, "Courier New", Courier, monospace;
	font-size: 9pt;
	height: 10pt;
	overflow: hidden;
	text-overflow: ellipsis;
	background: #ccc;
	margin: 0 10% 1em;
	padding:.125em;
}

#extractionComplete {
}

#warningsContainer {
	border-bottom: 2px solid brown;
	border-left: 2px solid brown;
	border-right: 2px solid brown;
	padding: 5px 0;
	background: #ffffcc;
	border-bottom-right-radius: 5px;
	border-bottom-left-radius: 5px;
}

#warningsHeader h2 {
	color: black;
	border-top: 2px solid brown;
	border-left: 2px solid brown;
	border-right: 2px solid brown;
	border-bottom: thin solid brown;
	border-top-right-radius: 5px;
	border-top-left-radius: 5px;
	background: yellow;
	font-size: large;
	padding: 2px 5px;
	margin: 0px;
}

#warnings {
	height: 200px;
	overflow-y: scroll;
}

#warnings div {
	background: #eeeeee;
	font-size: small;
	padding: 2px 4px;
	border-bottom: thin solid #333333;
}

#automode {
	display: inline-block;
	padding: 6pt 12pt;
	background-color: #cc0000;
	border: thick solid yellow;
	color: white;
	font-weight: bold;
	font-size: 125%;
	position: absolute;
	float: right;
	top: 1em;
	right: 1em;
}

.helpme,
#warn-not-close {
	background: rgb(255,255,136);
	padding: 0.75em 0.5em;
	border: solid #febf01;
	border-width: 1px 0;
	text-align: center;
}

#update-notification {
	margin: 1em;
	padding: 0.5em;
	background-color: #FF9;
	color: #F33;
	text-align: center;
	border-radius: 20px;
	border: medium solid red;
}

.update-notify {
	font-size: 20pt;
	font-weight: bold;
}

.update-links {
	color: #333;
	font-size: 14pt;
}

#update-dlnow {
	text-decoration: none;
	color: #333;
	border: thin solid #333;
	padding: 0.5em;
	border-radius: 5px;
	background-color: #f0f0f0;
}

#update-dlnow:hover {
	background-color: #fff;
}

#update-whatsnew {
	font-size: 11pt;
	color: blue;
	text-decoration: underline;
}

.update-whyupdate {
	color: #333;
	font-size: 9pt;
}

/* FTP Browser */
.breadcrumb {background-color: #F5F5F5; border-radius: 4px; list-style: none outside none; margin: 0 0 18px; padding: 8px 15px;}
.breadcrumb > li {display: inline-block; text-shadow: 0 1px 0 #FFFFFF;}
#ak_crumbs span {padding: 1px 3px;}
#ak_crumbs a {cursor: pointer;}
#ftpBrowserFolderList a{cursor:pointer}

/* Bootstrap porting */
.table {margin-bottom: 18px;width: 100%;}
.table th, .table td {border-top: 1px solid #DDDDDD; line-height: 18px; padding: 8px; text-align: left; vertical-align: top;}
.table-striped tbody > tr:nth-child(2n+1) > td, .table-striped tbody > tr:nth-child(2n+1) > th { background-color: #F9F9F9;}

/* Layout helpers
----------------------------------*/
.ui-helper-hidden { display: none; }
.ui-helper-hidden-accessible { border: 0; clip: rect(0 0 0 0); height: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; width: 1px; }
.ui-helper-reset { margin: 0; padding: 0; border: 0; outline: 0; line-height: 1.3; text-decoration: none; font-size: 100%; list-style: none; }
.ui-helper-clearfix:before, .ui-helper-clearfix:after { content: ""; display: table; }
.ui-helper-clearfix:after { clear: both; }
.ui-helper-clearfix { zoom: 1; }
.ui-helper-zfix { width: 100%; height: 100%; top: 0; left: 0; position: absolute; opacity: 0; filter:Alpha(Opacity=0); }


/* Interaction Cues
----------------------------------*/
.ui-state-disabled { cursor: default !important; }

/* Icons
----------------------------------*/

/* states and images */
.ui-icon { display: block; text-indent: -99999px; overflow: hidden; background-repeat: no-repeat; }

/* Misc visuals
----------------------------------*/

/* Overlays */
.ui-widget-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
.ui-resizable { position: relative;}
.ui-resizable-handle { position: absolute;font-size: 0.1px; display: block; }
.ui-resizable-disabled .ui-resizable-handle, .ui-resizable-autohide .ui-resizable-handle { display: none; }
.ui-resizable-n { cursor: n-resize; height: 7px; width: 100%; top: -5px; left: 0; }
.ui-resizable-s { cursor: s-resize; height: 7px; width: 100%; bottom: -5px; left: 0; }
.ui-resizable-e { cursor: e-resize; width: 7px; right: -5px; top: 0; height: 100%; }
.ui-resizable-w { cursor: w-resize; width: 7px; left: -5px; top: 0; height: 100%; }
.ui-resizable-se { cursor: se-resize; width: 12px; height: 12px; right: 1px; bottom: 1px; }
.ui-resizable-sw { cursor: sw-resize; width: 9px; height: 9px; left: -5px; bottom: -5px; }
.ui-resizable-nw { cursor: nw-resize; width: 9px; height: 9px; left: -5px; top: -5px; }
.ui-resizable-ne { cursor: ne-resize; width: 9px; height: 9px; right: -5px; top: -5px;}
.ui-button { display: inline-block; position: relative; padding: 0; margin-right: .1em; cursor: pointer; text-align: center; zoom: 1; overflow: visible; } /* the overflow property removes extra width in IE */
.ui-button, .ui-button:link, .ui-button:visited, .ui-button:hover, .ui-button:active { text-decoration: none; }
.ui-button-icon-only { width: 2.2em; } /* to make room for the icon, a width needs to be set here */
button.ui-button-icon-only { width: 2.4em; } /* button elements seem to need a little more width */
.ui-button-icons-only { width: 3.4em; }
button.ui-button-icons-only { width: 3.7em; }

/*button text element */
.ui-button .ui-button-text { display: block; line-height: 1.4;  }
.ui-button-text-only .ui-button-text { padding: 0; }
.ui-button-icon-only .ui-button-text, .ui-button-icons-only .ui-button-text { padding: .4em; text-indent: -9999999px; }
.ui-button-text-icon-primary .ui-button-text, .ui-button-text-icons .ui-button-text { padding: .4em 1em .4em 2.1em; }
.ui-button-text-icon-secondary .ui-button-text, .ui-button-text-icons .ui-button-text { padding: .4em 2.1em .4em 1em; }
.ui-button-text-icons .ui-button-text { padding-left: 2.1em; padding-right: 2.1em; }
/* no icon support for input elements, provide padding by default */
input.ui-button { padding: .4em 1em; }

/*button icon element(s) */
.ui-button-icon-only .ui-icon, .ui-button-text-icon-primary .ui-icon, .ui-button-text-icon-secondary .ui-icon, .ui-button-text-icons .ui-icon, .ui-button-icons-only .ui-icon { position: absolute; top: 50%; margin-top: -8px; }
.ui-button-icon-only .ui-icon { left: 50%; margin-left: -8px; }
.ui-button-text-icon-primary .ui-button-icon-primary, .ui-button-text-icons .ui-button-icon-primary, .ui-button-icons-only .ui-button-icon-primary { left: .5em; }
.ui-button-text-icon-secondary .ui-button-icon-secondary, .ui-button-text-icons .ui-button-icon-secondary, .ui-button-icons-only .ui-button-icon-secondary { right: .5em; }
.ui-button-text-icons .ui-button-icon-secondary, .ui-button-icons-only .ui-button-icon-secondary { right: .5em; }

/*button sets*/
.ui-buttonset { margin-right: 7px; }
.ui-buttonset .ui-button { margin-left: 0; margin-right: -.3em; }

/* workarounds */
button.ui-button::-moz-focus-inner { border: 0; padding: 0; } /* reset extra padding in Firefox */
.ui-dialog { position: absolute; top: 0; left: 0; padding: .2em; width: 300px; overflow: hidden; }
.ui-dialog .ui-dialog-titlebar { padding: .4em 1em; position: relative;  }
.ui-dialog .ui-dialog-title { float: left; margin: .1em 16px .1em 0; }
.ui-dialog .ui-dialog-titlebar-close { position: absolute; right: .3em; top: 50%; width: 19px; margin: -10px 0 0 0; padding: 1px; height: 18px; display:none}
.ui-dialog .ui-dialog-titlebar-close span { display: none; margin: 1px; }
.ui-dialog .ui-dialog-titlebar-close:hover, .ui-dialog .ui-dialog-titlebar-close:focus { padding: 0; }
.ui-dialog .ui-dialog-content { position: relative; border: 0; padding: .5em 1em; background: none; overflow: auto; zoom: 1; }
.ui-dialog .ui-dialog-buttonpane { text-align: left; border-width: 1px 0 0 0; background-image: none; margin: .5em 0 0 0; padding: .3em 1em .5em .4em; }
.ui-dialog .ui-dialog-buttonpane .ui-dialog-buttonset { float: right; }
.ui-dialog .ui-dialog-buttonpane button { margin: .5em .4em .5em 0; cursor: pointer; }
.ui-dialog .ui-resizable-se { width: 14px; height: 14px; right: 3px; bottom: 3px; }
.ui-draggable .ui-dialog-titlebar { cursor: move; }

/* Component containers
----------------------------------*/
.ui-widget-content { border: 1px solid #a6c9e2; background: #fcfdfd; color: #222222; }
.ui-widget-content a { color: #222222; }
.ui-widget-header { border: 1px solid #4297d7; background: #5c9ccc ; color: #ffffff; font-weight: bold; }
.ui-widget-header a { color: #ffffff; }

/* Interaction states
----------------------------------*/
.ui-state-default a, .ui-state-default a:link, .ui-state-default a:visited {text-decoration: none; }
.ui-state-hover, .ui-widget-content .ui-state-hover, .ui-widget-header .ui-state-hover{
    background: #4096ee;
	background: -moz-linear-gradient(top, #4096ee 0%, #60abf8 56%, #7abcff 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#4096ee), color-stop(56%,#60abf8), color-stop(100%,#7abcff));
	background: -webkit-linear-gradient(top, #4096ee 0%,#60abf8 56%,#7abcff 100%);
	background: -o-linear-gradient(top, #4096ee 0%,#60abf8 56%,#7abcff 100%);
	background: -ms-linear-gradient(top, #4096ee 0%,#60abf8 56%,#7abcff 100%);
	background: linear-gradient(top, #4096ee 0%,#60abf8 56%,#7abcff 100%);
}
.ui-state-hover a, .ui-state-hover a:hover, .ui-state-hover a:link, .ui-state-hover a:visited { color: #1d5987; text-decoration: none; }
.ui-state-active a, .ui-state-active a:link, .ui-state-active a:visited { color: #e17009; text-decoration: none; }

/* Interaction Cues
----------------------------------*/
.ui-state-highlight, .ui-widget-content .ui-state-highlight, .ui-widget-header .ui-state-highlight  {border: 1px solid #fad42e; background: #fbec88 ; color: #363636; }
.ui-state-highlight a, .ui-widget-content .ui-state-highlight a,.ui-widget-header .ui-state-highlight a { color: #363636; }
.ui-state-error, .ui-widget-content .ui-state-error, .ui-widget-header .ui-state-error {border: 1px solid #cd0a0a; background: #fef1ec ; color: #cd0a0a; }
.ui-state-error a, .ui-widget-content .ui-state-error a, .ui-widget-header .ui-state-error a { color: #cd0a0a; }
.ui-state-error-text, .ui-widget-content .ui-state-error-text, .ui-widget-header .ui-state-error-text { color: #cd0a0a; }
.ui-priority-primary, .ui-widget-content .ui-priority-primary, .ui-widget-header .ui-priority-primary { font-weight: bold; }
.ui-priority-secondary, .ui-widget-content .ui-priority-secondary,  .ui-widget-header .ui-priority-secondary { opacity: .7; filter:Alpha(Opacity=70); font-weight: normal; }
.ui-state-disabled, .ui-widget-content .ui-state-disabled, .ui-widget-header .ui-state-disabled { opacity: .35; filter:Alpha(Opacity=35); background-image: none; }
.ui-state-disabled .ui-icon { filter:Alpha(Opacity=35); } /* For IE8 - See #6059 */

/* Icons
----------------------------------*/

/* states and images */
.ui-icon { display:none}

/* Misc visuals
----------------------------------*/

/* Corner radius */
.ui-corner-all, .ui-corner-top, .ui-corner-left, .ui-corner-tl { -moz-border-radius-topleft: 5px; -webkit-border-top-left-radius: 5px; -khtml-border-top-left-radius: 5px; border-top-left-radius: 5px; }
.ui-corner-all, .ui-corner-top, .ui-corner-right, .ui-corner-tr { -moz-border-radius-topright: 5px; -webkit-border-top-right-radius: 5px; -khtml-border-top-right-radius: 5px; border-top-right-radius: 5px; }
.ui-corner-all, .ui-corner-bottom, .ui-corner-left, .ui-corner-bl { -moz-border-radius-bottomleft: 5px; -webkit-border-bottom-left-radius: 5px; -khtml-border-bottom-left-radius: 5px; border-bottom-left-radius: 5px; }
.ui-corner-all, .ui-corner-bottom, .ui-corner-right, .ui-corner-br { -moz-border-radius-bottomright: 5px; -webkit-border-bottom-right-radius: 5px; -khtml-border-bottom-right-radius: 5px; border-bottom-right-radius: 5px; }

/* Overlays */
.ui-widget-overlay { background: #000000 ; opacity: .8;filter:Alpha(Opacity=80); }
.ui-widget-shadow { margin: -8px 0 0 -8px; padding: 8px; background: #000000 ; opacity: .8;filter:Alpha(Opacity=80); -moz-border-radius: 8px; -khtml-border-radius: 8px; -webkit-border-radius: 8px; border-radius: 8px; }


.ui-button {
    font-family: Calibri,"Helvetica Neue",Helvetica,Arial,sans-serif;
    font-size: 1.4rem;
	display: inline-block;
	padding: .5em 1em;
	margin: 1em .25em;
	color:#fff;
    text-decoration: none;
	background: #7abcff;
	border: solid #ddd;
	cursor: pointer;
	border-radius: .25em;
  	transition: 0.3s linear all;
}

CSS;

	callExtraFeature('onExtraHeadCSS');
}

/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

function echoHeadJavascript()
{
	?>
	<script type="text/javascript" language="javascript">
		var akeeba_debug = <?php echo defined('KSDEBUG') ? 'true' : 'false' ?>;
		var sftp_path    = '<?php echo TranslateWinPath(defined('KSROOTDIR') ? KSROOTDIR : dirname(__FILE__)); ?>/';
		var isJoomla     = true;

		/**
		 * Returns the version of Internet Explorer or a -1
		 * (indicating the use of another browser).
		 *
		 * @return   integer  MSIE version or -1
		 */
		function getInternetExplorerVersion()
		{
			var rv = -1; // Return value assumes failure.
			if (navigator.appName == 'Microsoft Internet Explorer')
			{
				var ua = navigator.userAgent;
				var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
				if (re.exec(ua) != null)
				{
					rv = parseFloat(RegExp.$1);
				}
			}
			return rv;
		}

		$(document).ready(function ()
		{
			// Hide 2nd Page
			$('#page2').css('display', 'none');

			// Translate the GUI
			translateGUI();

			// Hook interaction handlers
			$(document).keyup(closeLightbox);
			$('#kickstart\\.procengine').change(onChangeProcengine);
			$('#kickstart\\.setup\\.sourcepath').change(onArchiveListReload);
			$('#reloadArchives').click(onArchiveListReload);
			$('#checkFTPTempDir').click(oncheckFTPTempDirClick);
			$('#resetFTPTempDir').click(onresetFTPTempDir);
			$('#browseFTP').click(onbrowseFTP);
			$('#testFTP').click(onTestFTPClick);
			$('#gobutton').click(onStartExtraction);
			$('#runInstaller').click(onRunInstallerClick);
			$('#runCleanup').click(onRunCleanupClick);
			$('#gotoSite').click(function (event)
			{
				window.open('index.php', 'finalstepsite');
				window.close();
			});
			$('#gotoAdministrator').click(function (event)
			{
				window.open('administrator/index.php', 'finalstepadmin');
				window.close();
			});
			$('#gotoStart').click(onGotoStartClick);
			$('#showFineTune').click(function ()
			{
				$('#fine-tune-holder').show();
				$(this).hide();
			});

			// Reset the progress bar
			setProgressBar(0);

			// Show warning
			var msieVersion = getInternetExplorerVersion();
			if ((msieVersion != -1) && (msieVersion <= 8.99))
			{
				$('#ie7Warning').css('display', 'block');
			}
			if (!akeeba_debug)
			{
				$('#preextraction').css('display', 'block');
				$('#fade').css('display', 'block');
			}

			// Trigger change, so we avoid problems if the user refreshes the page
			$('#kickstart\\.procengine').change();
		});

		var translation = {
			<?php echoTranslationStrings(); ?>
		}

		var akeeba_ajax_url                  = '<?php echo defined('KSSELFNAME') ? KSSELFNAME : basename(__FILE__); ?>';
		var akeeba_error_callback            = onGenericError;
		var akeeba_restoration_stat_inbytes  = 0;
		var akeeba_restoration_stat_outbytes = 0;
		var akeeba_restoration_stat_files    = 0;
		var akeeba_restoration_stat_total    = 0;
		var akeeba_factory                   = null;

		var akeeba_ftpbrowser_host      = null;
		var akeeba_ftpbrowser_port      = 21;
		var akeeba_ftpbrowser_username  = null;
		var akeeba_ftpbrowser_password  = null;
		var akeeba_ftpbrowser_passive   = 1;
		var akeeba_ftpbrowser_ssl       = 0;
		var akeeba_ftpbrowser_directory = '';

		var akeeba_sftpbrowser_host      = null;
		var akeeba_sftpbrowser_port      = 21;
		var akeeba_sftpbrowser_username  = null;
		var akeeba_sftpbrowser_password  = null;
		var akeeba_sftpbrowser_pubkey    = null;
		var akeeba_sftpbrowser_privkey   = null;
		var akeeba_sftpbrowser_directory = '';

		function translateGUI()
		{
			$('*').each(function (i, e)
			{
				transKey = $(e).text();
				if (array_key_exists(transKey, translation))
				{
					$(e).text(translation[transKey]);
				}
			});
		}

		function trans(key)
		{
			if (array_key_exists(key, translation))
			{
				return translation[key];
			}
			else
			{
				return key;
			}
		}

		function array_key_exists(key, search)
		{
			if (!search || (search.constructor !== Array && search.constructor !== Object))
			{
				return false;
			}
			return key in search;
		}

		function empty(mixed_var)
		{
			var key;

			if (mixed_var === "" ||
				mixed_var === 0 ||
				mixed_var === "0" ||
				mixed_var === null ||
				mixed_var === false ||
				typeof mixed_var === 'undefined'
			)
			{
				return true;
			}

			if (typeof mixed_var == 'object')
			{
				for (key in mixed_var)
				{
					return false;
				}
				return true;
			}

			return false;
		}

		function is_array(mixed_var)
		{
			var key         = '';
			var getFuncName = function (fn)
			{
				var name = (/\W*function\s+([\w\$]+)\s*\(/).exec(fn);
				if (!name)
				{
					return '(Anonymous)';
				}
				return name[1];
			};

			if (!mixed_var)
			{
				return false;
			}

			// BEGIN REDUNDANT
			this.php_js     = this.php_js || {};
			this.php_js.ini = this.php_js.ini || {};
			// END REDUNDANT

			if (typeof mixed_var === 'object')
			{

				if (this.php_js.ini['phpjs.objectsAsArrays'] &&  // Strict checking for being a JavaScript array (only check this way if call ini_set('phpjs.objectsAsArrays', 0) to disallow objects as arrays)
					(
					(this.php_js.ini['phpjs.objectsAsArrays'].local_value.toLowerCase &&
					this.php_js.ini['phpjs.objectsAsArrays'].local_value.toLowerCase() === 'off') ||
					parseInt(this.php_js.ini['phpjs.objectsAsArrays'].local_value, 10) === 0)
				)
				{
					return mixed_var.hasOwnProperty('length') && // Not non-enumerable because of being on parent class
						!mixed_var.propertyIsEnumerable('length') && // Since is own property, if not enumerable, it must be a built-in function
						getFuncName(mixed_var.constructor) !== 'String'; // exclude String()
				}

				if (mixed_var.hasOwnProperty)
				{
					for (key in mixed_var)
					{
						// Checks whether the object has the specified property
						// if not, we figure it's not an object in the sense of a php-associative-array.
						if (false === mixed_var.hasOwnProperty(key))
						{
							return false;
						}
					}
				}

				// Read discussion at: http://kevin.vanzonneveld.net/techblog/article/javascript_equivalent_for_phps_is_array/
				return true;
			}

			return false;
		}

		function resolvePath(filename)
		{
			filename  = filename.replace('\/\/g', '\/');
			var parts = filename.split('/');
			var out   = [];

			$.each(parts, function (i, part)
			{
				if (part == '.') return;
				if (part == '..')
				{
					out.pop();
					return;
				}
				out.push(part);
			});

			return out.join('/');
		}

		/**
		 * Performs an AJAX request and returns the parsed JSON output.
		 * The global akeeba_ajax_url is used as the AJAX proxy URL.
		 * If there is no errorCallback, the global akeeba_error_callback is used.
		 * @param data An object with the query data, e.g. a serialized form
		 * @param successCallback A function accepting a single object parameter, called on success
		 * @param errorCallback A function accepting a single string parameter, called on failure
		 */
		function doAjax(data, successCallback, errorCallback)
		{
			var structure =
			    {
				    type:    "POST",
				    url:     akeeba_ajax_url,
				    cache:   false,
				    data:    data,
				    timeout: 600000,
				    success: function (msg)
				             {
					             // Initialize
					             var junk    = null;
					             var message = "";

					             // Get rid of junk before the data
					             var valid_pos = msg.indexOf('###');
					             if (valid_pos == -1)
					             {
						             // Valid data not found in the response
						             msg = 'Invalid AJAX data received:<br/>' + msg;
						             if (errorCallback == null)
						             {
							             if (akeeba_error_callback != null)
							             {
								             akeeba_error_callback(msg);
							             }
						             }
						             else
						             {
							             errorCallback(msg);
						             }
						             return;
					             }
					             else if (valid_pos != 0)
					             {
						             // Data is prefixed with junk
						             junk    = msg.substr(0, valid_pos);
						             message = msg.substr(valid_pos);
					             }
					             else
					             {
						             message = msg;
					             }
					             message = message.substr(3); // Remove triple hash in the beginning

					             // Get of rid of junk after the data
					             var valid_pos = message.lastIndexOf('###');
					             message       = message.substr(0, valid_pos); // Remove triple hash in the end

					             try
					             {
						             var data = eval('(' + message + ')');
					             }
					             catch (err)
					             {
						             var msg = err.message + "\n<br/>\n<pre>\n" + message + "\n</pre>";
						             if (errorCallback == null)
						             {
							             if (akeeba_error_callback != null)
							             {
								             akeeba_error_callback(msg);
							             }
						             }
						             else
						             {
							             errorCallback(msg);
						             }
						             return;
					             }

					             // Call the callback function
					             successCallback(data);
				             },
				    error:   function (Request, textStatus, errorThrown)
				             {
					             var message = '<strong>AJAX Loading Error</strong><br/>HTTP Status: ' + Request.status + ' (' + Request.statusText + ')<br/>';
					             message     = message + 'Internal status: ' + textStatus + '<br/>';
					             message     = message + 'XHR ReadyState: ' + Request.readyState + '<br/>';
					             message     = message + 'Raw server response:<br/>' + Request.responseText;
					             if (errorCallback == null)
					             {
						             if (akeeba_error_callback != null)
						             {
							             akeeba_error_callback(message);
						             }
					             }
					             else
					             {
						             errorCallback(message);
					             }
				             }
			    };
			$.ajax(structure);
		}

		function onChangeProcengine(event)
		{
			if ($('#kickstart\\.procengine').val() == 'direct')
			{
				$('#ftp-options').hide('fast');
			}
			else
			{
				$('#ftp-options').show('fast');
			}

			if ($('#kickstart\\.procengine').val() == 'sftp')
			{
				$('#ftp-ssl-passive').hide('fast');

				if ($('#kickstart\\.ftp\\.dir').val() == '')
				{
					$('#kickstart\\.ftp\\.dir').val(sftp_path);
				}

				$('#testFTP').html(trans('BTN_TESTSFTPCON'))
			}
			else
			{
				$('#ftp-ssl-passive').show('fast');
				$('#testFTP').html(trans('BTN_TESTFTPCON'))
			}
		}

		function closeLightbox(event)
		{
			var closeMe = false;

			if ((event == null) || (event == undefined))
			{
				closeMe = true;
			}
			else if (event.keyCode == '27')
			{
				closeMe = true;
			}

			if (closeMe)
			{
				document.getElementById('preextraction').style.display = 'none';
				document.getElementById('genericerror').style.display  = 'none';
				document.getElementById('fade').style.display          = 'none';
				$(document).unbind('keyup', closeLightbox);
			}
		}

		function onGenericError(msg)
		{
			$('#genericerrorInner').html(msg);
			$('#genericerror').css('display', 'block');
			$('#fade').css('display', 'block');
			$(document).keyup(closeLightbox);
		}

		function setProgressBar(percent)
		{
			var newValue = 0;

			if (percent <= 1)
			{
				newValue = 100 * percent;
			}
			else
			{
				newValue = percent;
			}

			$('#progressbar-inner').css('width', percent + '%');
		}

		function oncheckFTPTempDirClick(event)
		{
			var data = {
				'task': 'checkTempdir',
				'json': JSON.stringify({
					'kickstart.ftp.tempdir': $('#kickstart\\.ftp\\.tempdir').val()
				})
			};

			doAjax(data, function (ret)
			{
				var key = ret.status ? 'FTP_TEMPDIR_WRITABLE' : 'FTP_TEMPDIR_UNWRITABLE';
				alert(trans(key));
			});
		}

		function onTestFTPClick(event)
		{
			var type = 'ftp';

			if ($('#kickstart\\.procengine').val() == 'sftp')
			{
				type = 'sftp';
			}

			var data = {
				'task': 'checkFTP',
				'json': JSON.stringify({
					'type':                  type,
					'kickstart.ftp.host':    $('#kickstart\\.ftp\\.host').val(),
					'kickstart.ftp.port':    $('#kickstart\\.ftp\\.port').val(),
					'kickstart.ftp.ssl':     $('#kickstart\\.ftp\\.ssl').is(':checked'),
					'kickstart.ftp.passive': $('#kickstart\\.ftp\\.passive').is(':checked'),
					'kickstart.ftp.user':    $('#kickstart\\.ftp\\.user').val(),
					'kickstart.ftp.pass':    $('#kickstart\\.ftp\\.pass').val(),
					'kickstart.ftp.dir':     $('#kickstart\\.ftp\\.dir').val(),
					'kickstart.ftp.tempdir': $('#kickstart\\.ftp\\.tempdir').val()
				})
			};
			doAjax(data, function (ret)
			{
				if (type == 'ftp')
				{
					var key = ret.status ? 'FTP_CONNECTION_OK' : 'FTP_CONNECTION_FAILURE';
				}
				else
				{
					var key = ret.status ? 'SFTP_CONNECTION_OK' : 'SFTP_CONNECTION_FAILURE';
				}


				alert(trans(key) + "\n\n" + (ret.status ? '' : ret.message));
			});
		}

		function onbrowseFTP()
		{
			if ($('#kickstart\\.procengine').val() != 'sftp')
			{
				akeeba_ftpbrowser_host      = $('#kickstart\\.ftp\\.host').val();
				akeeba_ftpbrowser_port      = $('#kickstart\\.ftp\\.port').val();
				akeeba_ftpbrowser_username  = $('#kickstart\\.ftp\\.user').val();
				akeeba_ftpbrowser_password  = $('#kickstart\\.ftp\\.pass').val();
				akeeba_ftpbrowser_passive   = $('#kickstart\\.ftp\\.passive').is(':checked');
				akeeba_ftpbrowser_ssl       = $('#kickstart\\.ftp\\.ssl').is(':checked');
				akeeba_ftpbrowser_directory = $('#kickstart\\.ftp\\.dir').val();

				var akeeba_onbrowseFTP_callback = function (path)
				{
					var charlist = ('/').replace(/([\[\]\(\)\.\?\/\*\{\}\+\$\^\:])/g, '$1');
					var re       = new RegExp('^[' + charlist + ']+', 'g');
					path         = '/' + (path + '').replace(re, '');
					$('#kickstart\\.ftp\\.dir').val(path);
				};

				akeeba_ftpbrowser_hook(akeeba_onbrowseFTP_callback);
			}
			else
			{
				akeeba_sftpbrowser_host      = $('#kickstart\\.ftp\\.host').val();
				akeeba_sftpbrowser_port      = $('#kickstart\\.ftp\\.port').val();
				akeeba_sftpbrowser_username  = $('#kickstart\\.ftp\\.user').val();
				akeeba_sftpbrowser_password  = $('#kickstart\\.ftp\\.pass').val();
				akeeba_sftpbrowser_directory = $('#kickstart\\.ftp\\.dir').val();

				var akeeba_postprocsftp_callback = function (path)
				{
					var charlist = ('/').replace(/([\[\]\(\)\.\?\/\*\{\}\+\$\^\:])/g, '$1');
					var re       = new RegExp('^[' + charlist + ']+', 'g');
					path         = '/' + (path + '').replace(re, '');
					$('#kickstart\\.ftp\\.dir').val(path);
				};

				akeeba_sftpbrowser_hook(akeeba_postprocsftp_callback);
			}
		}

		akeeba_ftpbrowser_hook = function (callback)
		{
			var ftp_dialog_element = $("#ftpdialog");
			var ftp_callback       = function ()
			{
				callback(akeeba_ftpbrowser_directory);
				ftp_dialog_element.dialog("close");
			};

			ftp_dialog_element.css('display', 'block');
			ftp_dialog_element.removeClass('ui-state-error');
			ftp_dialog_element.dialog({
				autoOpen:  false,
				title:     trans('CONFIG_UI_FTPBROWSER_TITLE'),
				draggable: false,
				height:    500,
				width:     500,
				modal:     true,
				resizable: false,
				buttons:   {
					"OK":     ftp_callback,
					"Cancel": function ()
					          {
						          ftp_dialog_element.dialog("close");
					          }
				}
			});

			$('#ftpBrowserErrorContainer').css('display', 'none');
			$('#ftpBrowserFolderList').html('');
			$('#ak_crumbs').html('');

			ftp_dialog_element.dialog('open');

			if (empty(akeeba_ftpbrowser_directory)) akeeba_ftpbrowser_directory = '';

			var data = {
				'task': 'ftpbrowse',
				'json': JSON.stringify({
					'host':      akeeba_ftpbrowser_host,
					'port':      akeeba_ftpbrowser_port,
					'username':  akeeba_ftpbrowser_username,
					'password':  akeeba_ftpbrowser_password,
					'passive':   (akeeba_ftpbrowser_passive ? 1 : 0),
					'ssl':       (akeeba_ftpbrowser_ssl ? 1 : 0),
					'directory': akeeba_ftpbrowser_directory
				})
			};

			// Do AJAX call and Render results
			doAjax(
				data,
				function (data)
				{
					if (data.error != false)
					{
						// An error occured
						$('#ftpBrowserError').html(trans(data.error));
						$('#ftpBrowserErrorContainer').css('display', 'block');
						$('#ftpBrowserFolderList').css('display', 'none');
						$('#ak_crumbs').css('display', 'none');
					}
					else
					{
						// Create the interface
						$('#ftpBrowserErrorContainer').css('display', 'none');

						// Display the crumbs
						if (!empty(data.breadcrumbs))
						{
							$('#ak_crumbs').css('display', 'block');
							$('#ak_crumbs').html('');
							var relativePath = '/';

							akeeba_ftpbrowser_addcrumb(trans('UI-ROOT'), '/', callback);

							$.each(data.breadcrumbs, function (i, crumb)
							{
								relativePath += '/' + crumb;

								akeeba_ftpbrowser_addcrumb(crumb, relativePath, callback);
							});
						}
						else
						{
							$('#ak_crumbs').hide();
						}

						// Display the list of directories
						if (!empty(data.list))
						{
							$('#ftpBrowserFolderList').show();

							$.each(data.list, function (i, item)
							{
								akeeba_ftpbrowser_create_link(data.directory + '/' + item, item, $('#ftpBrowserFolderList'), callback);
							});
						}
						else
						{
							$('#ftpBrowserFolderList').css('display', 'none');
						}
					}
				},
				function (message)
				{
					$('#ftpBrowserError').html(message);
					$('#ftpBrowserErrorContainer').css('display', 'block');
					$('#ftpBrowserFolderList').css('display', 'none');
					$('#ak_crumbs').css('display', 'none');
				}
			);
		};

		/**
		 * Creates a directory link for the FTP browser UI
		 */
		function akeeba_ftpbrowser_create_link(path, label, container, callback)
		{
			var row  = $(document.createElement('tr'));
			var cell = $(document.createElement('td')).appendTo(row);

			var myElement = $(document.createElement('a'))
				.text(label)
				.click(function ()
				{
					akeeba_ftpbrowser_directory = resolvePath(path);
					akeeba_ftpbrowser_hook(callback);
				})
				.appendTo(cell);
			row.appendTo($(container));
		}

		/**
		 * Adds a breadcrumb to the FTP browser
		 */
		function akeeba_ftpbrowser_addcrumb(crumb, relativePath, callback, last)
		{
			if (empty(last)) last = false;
			var li = $(document.createElement('li'));

			$(document.createElement('a'))
				.html(crumb)
				.click(function (e)
				{
					akeeba_ftpbrowser_directory = relativePath;
					akeeba_ftpbrowser_hook(callback);

					if (e.preventDefault)
					{
						e.preventDefault();
					}
					else
					{
						e.returnValue = false;
					}
				})
				.appendTo(li);

			if (!last)
			{
				$(document.createElement('span'))
					.text('/')
					.addClass('divider')
					.appendTo(li);
			}

			li.appendTo('#ak_crumbs');
		}

		// FTP browser function
		akeeba_sftpbrowser_hook = function (callback)
		{
			var sftp_dialog_element = $("#ftpdialog");
			var sftp_callback       = function ()
			{
				callback(akeeba_sftpbrowser_directory);
				sftp_dialog_element.dialog("close");
			};

			sftp_dialog_element.css('display', 'block');
			sftp_dialog_element.removeClass('ui-state-error');
			sftp_dialog_element.dialog({
				autoOpen:  false,
				'title':   trans('CONFIG_UI_SFTPBROWSER_TITLE'),
				draggable: false,
				height:    500,
				width:     500,
				modal:     true,
				resizable: false,
				buttons:   {
					"OK":     sftp_callback,
					"Cancel": function ()
					          {
						          sftp_dialog_element.dialog("close");
					          }
				}
			});

			$('#ftpBrowserErrorContainer').css('display', 'none');
			$('#ftpBrowserFolderList').html('');
			$('#ak_crumbs').html('');

			sftp_dialog_element.dialog('open');

			if (empty(akeeba_sftpbrowser_directory)) akeeba_sftpbrowser_directory = '';

			var data = {
				'task': 'sftpbrowse',
				'json': JSON.stringify({
					'host':      akeeba_sftpbrowser_host,
					'port':      akeeba_sftpbrowser_port,
					'username':  akeeba_sftpbrowser_username,
					'password':  akeeba_sftpbrowser_password,
					'directory': akeeba_sftpbrowser_directory
				})
			};

			doAjax(
				data,
				function (data)
				{
					if (data.error != false)
					{
						// An error occured
						$('#ftpBrowserError').html(data.error);
						$('#ftpBrowserErrorContainer').css('display', 'block');
						$('#ftpBrowserFolderList').css('display', 'none');
						$('#ak_crumbs').css('display', 'none');
					}
					else
					{
						// Create the interface
						$('#ftpBrowserErrorContainer').css('display', 'none');

						// Display the crumbs
						if (!empty(data.breadcrumbs))
						{
							$('#ak_crumbs').css('display', 'block');
							$('#ak_crumbs').html('');
							var relativePath = '/';

							akeeba_sftpbrowser_addcrumb(trans('UI-ROOT'), '/', callback);

							$.each(data.breadcrumbs, function (i, crumb)
							{
								relativePath += '/' + crumb;

								akeeba_sftpbrowser_addcrumb(crumb, relativePath, callback);
							});
						}
						else
						{
							$('#ftpBrowserCrumbs').css('display', 'none');
						}

						// Display the list of directories
						if (!empty(data.list))
						{
							$('#ftpBrowserFolderList').css('display', 'block');

							$.each(data.list, function (i, item)
							{
								akeeba_sftpbrowser_create_link(data.directory + '/' + item, item, $('#ftpBrowserFolderList'), callback);
							});
						}
						else
						{
							$('#ftpBrowserFolderList').css('display', 'none');
						}
					}
				},
				function (message)
				{
					$('#ftpBrowserError').html(message);
					$('#ftpBrowserErrorContainer').css('display', 'block');
					$('#ftpBrowserFolderList').css('display', 'none');
					$('#ftpBrowserCrumbs').css('display', 'none');
				}
			);
		};

		/**
		 * Creates a directory link for the SFTP browser UI
		 */
		function akeeba_sftpbrowser_create_link(path, label, container, callback)
		{
			var row  = $(document.createElement('tr'));
			var cell = $(document.createElement('td')).appendTo(row);

			var myElement = $(document.createElement('a'))
				.text(label)
				.click(function ()
				{
					akeeba_sftpbrowser_directory = resolvePath(path);
					akeeba_sftpbrowser_hook(callback);
				})
				.appendTo(cell);
			row.appendTo($(container));
		}

		/**
		 * Adds a breadcrumb to the SFTP browser
		 */
		function akeeba_sftpbrowser_addcrumb(crumb, relativePath, callback, last)
		{
			if (empty(last)) last = false;
			var li = $(document.createElement('li'));

			$(document.createElement('a'))
				.html(crumb)
				.click(function (e)
				{
					akeeba_sftpbrowser_directory = relativePath;
					akeeba_sftpbrowser_hook(callback);

					if (e.preventDefault)
					{
						e.preventDefault();
					}
					else
					{
						e.returnValue = false;
					}
				})
				.appendTo(li);

			if (!last)
			{
				$(document.createElement('span'))
					.text('/')
					.addClass('divider')
					.appendTo(li);
			}

			li.appendTo('#ak_crumbs');
		}

		function onStartExtraction()
		{
			$('#page1').hide('fast');
			$('#page2').show('fast');

			$('#currentFile').text('');

			akeeba_error_callback = errorHandler;

			var data = {
				'task': 'startExtracting',
				'json': JSON.stringify({
					'kickstart.setup.sourcepath':     $('#kickstart\\.setup\\.sourcepath').val(),
					'kickstart.setup.sourcefile':     $('#kickstart\\.setup\\.sourcefile').val(),
					'kickstart.jps.password':         $('#kickstart\\.jps\\.password').val(),
					'kickstart.tuning.min_exec_time': $('#kickstart\\.tuning\\.min_exec_time').val(),
					'kickstart.tuning.max_exec_time': $('#kickstart\\.tuning\\.max_exec_time').val(),
					'kickstart.stealth.enable':       $('#kickstart\\.stealth\\.enable').is(':checked'),
					'kickstart.stealth.url':          $('#kickstart\\.stealth\\.url').val(),
					'kickstart.tuning.run_time_bias': 75,
					'kickstart.setup.restoreperms':   $('#kickstart\\.restorepermissions\\.enable').is(':checked'),
					'kickstart.setup.dryrun':         0,
					'kickstart.setup.ignoreerrors':   $('#kickstart\\.setup\\.ignoreerrors').is(':checked'),
					'kickstart.enabled':              1,
					'kickstart.security.password':    '',
					'kickstart.setup.renameback':     $('#kickstart\\.setup\\.renameback').is(':checked'),
					'kickstart.procengine':           $('#kickstart\\.procengine').val(),
					'kickstart.ftp.host':             $('#kickstart\\.ftp\\.host').val(),
					'kickstart.ftp.port':             $('#kickstart\\.ftp\\.port').val(),
					'kickstart.ftp.ssl':              $('#kickstart\\.ftp\\.ssl').is(':checked'),
					'kickstart.ftp.passive':          $('#kickstart\\.ftp\\.passive').is(':checked'),
					'kickstart.ftp.user':             $('#kickstart\\.ftp\\.user').val(),
					'kickstart.ftp.pass':             $('#kickstart\\.ftp\\.pass').val(),
					'kickstart.ftp.dir':              $('#kickstart\\.ftp\\.dir').val(),
					'kickstart.ftp.tempdir':          $('#kickstart\\.ftp\\.tempdir').val()
				})
			};
			doAjax(data, function (ret)
			{
				processRestorationStep(ret);
			});
		}

		function processRestorationStep(data)
		{
			// Look for errors
			if (!data.status)
			{
				errorHandler(data.message);
				return;
			}

			// Propagate warnings to the GUI
			if (!empty(data.Warnings))
			{
				$.each(data.Warnings, function (i, item)
				{
					$('#warnings').append(
						$(document.createElement('div'))
							.html(item)
					);
					$('#warningsBox').show('fast');
				});
			}

			// Parse total size, if exists
			if (array_key_exists('totalsize', data))
			{
				if (is_array(data.filelist))
				{
					akeeba_restoration_stat_total = 0;
					$.each(data.filelist, function (i, item)
					{
						akeeba_restoration_stat_total += item[1];
					});
				}
				akeeba_restoration_stat_outbytes = 0;
				akeeba_restoration_stat_inbytes  = 0;
				akeeba_restoration_stat_files    = 0;
			}

			// Update GUI
			akeeba_restoration_stat_inbytes += data.bytesIn;
			akeeba_restoration_stat_outbytes += data.bytesOut;
			akeeba_restoration_stat_files += data.files;
			var percentage = 0;
			if (akeeba_restoration_stat_total > 0)
			{
				percentage = 100 * akeeba_restoration_stat_inbytes / akeeba_restoration_stat_total;
				if (percentage < 0)
				{
					percentage = 0;
				}
				else if (percentage > 100)
				{
					percentage = 100;
				}
			}
			if (data.done) percentage = 100;
			setProgressBar(percentage);
			$('#currentFile').text(data.lastfile);

			if (!empty(data.factory)) akeeba_factory = data.factory;

			post = {
				'task': 'continueExtracting',
				'json': JSON.stringify({factory: akeeba_factory})
			};

			if (!data.done)
			{
				doAjax(post, function (ret)
				{
					processRestorationStep(ret);
				});
			}
			else
			{
				$('#page2a').hide('fast');
				$('#extractionComplete').show('fast');

				$('#runInstaller').css('display', 'inline-block');
			}
		}

		function onGotoStartClick(event)
		{
			$('#page2').hide('fast');
			$('#error').hide('fast');
			$('#page1').show('fast');
		}

		function onRunInstallerClick(event)
		{
			var windowReference = window.open('installation/index.php', 'installer');
			if (!windowReference.opener)
			{
				windowReference.opener = this.window;
			}
			$('#runCleanup').css('display', 'inline-block');
			$('#runInstaller').hide('fast');
		}

		function onRunCleanupClick(event)
		{
			post = {
				'task': 'isJoomla',
				// Passing the factory preserves the renamed files array
				'json': JSON.stringify({factory: akeeba_factory})
			};

			doAjax(post, function (ret)
			{
				isJoomla = ret;
				onRealRunCleanupClick();
			});
		}

		function onRealRunCleanupClick()
		{
			post = {
				'task': 'cleanUp',
				// Passing the factory preserves the renamed files array
				'json': JSON.stringify({factory: akeeba_factory})
			};

			doAjax(post, function (ret)
			{
				$('#runCleanup').hide('fast');
				$('#gotoSite').css('display', 'inline-block');
				if (isJoomla)
				{
					$('#gotoAdministrator').css('display', 'inline-block');
				}
				else
				{
					$('#gotoAdministrator').css('display', 'none');
				}
				$('#gotoPostRestorationRroubleshooting').css('display', 'block');
			});

		}

		function errorHandler(msg)
		{
			$('#errorMessage').html(msg);
			$('#error').show('fast');
		}

		function onresetFTPTempDir(event)
		{
			$('#kickstart\\.ftp\\.tempdir').val('<?php echo addcslashes(AKKickstartUtils::getPath(), '\\\'"') ?>');
		}

		function onArchiveListReload()
		{
			post = {
				'task': 'listArchives',
				'json': JSON.stringify({path: $('#kickstart\\.setup\\.sourcepath').val()})
			}

			doAjax(post, function (ret)
			{
				$('#sourcefileContainer').html(ret);
			});
		}

		/**
		 * Akeeba Kickstart Update Check
		 */

		var akeeba_update  = {version: '0'};
		var akeeba_version = '5.3.1';

		function version_compare(v1, v2, operator)
		{
			// BEGIN REDUNDANT
			this.php_js     = this.php_js || {};
			this.php_js.ENV = this.php_js.ENV || {};
			// END REDUNDANT
			// Important: compare must be initialized at 0.
			var i           = 0,
			    x           = 0,
			    compare     = 0,
			    // vm maps textual PHP versions to negatives so they're less than 0.
			    // PHP currently defines these as CASE-SENSITIVE. It is important to
			    // leave these as negatives so that they can come before numerical versions
			    // and as if no letters were there to begin with.
			    // (1alpha is < 1 and < 1.1 but > 1dev1)
			    // If a non-numerical value can't be mapped to this table, it receives
			    // -7 as its value.
			    vm          = {
				    'dev':   -6,
				    'alpha': -5,
				    'a':     -5,
				    'beta':  -4,
				    'b':     -4,
				    'RC':    -3,
				    'rc':    -3,
				    '#':     -2,
				    'p':     -1,
				    'pl':    -1
			    },
			    // This function will be called to prepare each version argument.
			    // It replaces every _, -, and + with a dot.
			    // It surrounds any nonsequence of numbers/dots with dots.
			    // It replaces sequences of dots with a single dot.
			    //    version_compare('4..0', '4.0') == 0
			    // Important: A string of 0 length needs to be converted into a value
			    // even less than an unexisting value in vm (-7), hence [-8].
			    // It's also important to not strip spaces because of this.
			    //   version_compare('', ' ') == 1
			    prepVersion = function (v)
			    {
				    v = ('' + v).replace(/[_\-+]/g, '.');
				    v = v.replace(/([^.\d]+)/g, '.$1.').replace(/\.{2,}/g, '.');
				    return (!v.length ? [-8] : v.split('.'));
			    },
			    // This converts a version component to a number.
			    // Empty component becomes 0.
			    // Non-numerical component becomes a negative number.
			    // Numerical component becomes itself as an integer.
			    numVersion  = function (v)
			    {
				    return !v ? 0 : (isNaN(v) ? vm[v] || -7 : parseInt(v, 10));
			    };
			v1              = prepVersion(v1);
			v2              = prepVersion(v2);
			x               = Math.max(v1.length, v2.length);
			for (i = 0; i < x; i++)
			{
				if (v1[i] == v2[i])
				{
					continue;
				}
				v1[i] = numVersion(v1[i]);
				v2[i] = numVersion(v2[i]);
				if (v1[i] < v2[i])
				{
					compare = -1;
					break;
				}
				else if (v1[i] > v2[i])
				{
					compare = 1;
					break;
				}
			}
			if (!operator)
			{
				return compare;
			}

			// Important: operator is CASE-SENSITIVE.
			// "No operator" seems to be treated as less than
			// Any other values seem to make the function return null.
			switch (operator)
			{
				case '>':
				case 'gt':
					return (compare > 0);
				case '>=':
				case 'ge':
					return (compare >= 0);
				case '<=':
				case 'le':
					return (compare <= 0);
				case '==':
				case '=':
				case 'eq':
					return (compare === 0);
				case '<>':
				case '!=':
				case 'ne':
					return (compare !== 0);
				case '':
				case '<':
				case 'lt':
					return (compare < 0);
				default:
					return null;
			}
		}

		function checkUpdates()
		{
			var structure =
			    {
				    type:        "GET",
				    url:         'http://query.yahooapis.com/v1/public/yql',
				    data:        {
					    <?php if(KICKSTARTPRO): ?>
					    q:        'SELECT * FROM xml WHERE url="http://nocdn.akeebabackup.com/updates/kickstart.xml"',
					    <?php else: ?>
					    q:        'SELECT * FROM xml WHERE url="http://nocdn.akeebabackup.com/updates/kickstartpro.xml"',
					    <?php endif; ?>
					    format:   'json',
					    callback: 'updatesCallback'
				    },
				    cache:       true,
				    crossDomain: true,
				    jsonp:       'updatesCallback',
				    timeout:     15000
			    };
			$.ajax(structure);
		}

		function updatesCallback(msg)
		{
			$.each(msg.query.results.updates.update, function (i, el)
			{
				var myUpdate = {
					'version': el.version,
					'infourl': el.infourl['content'],
					'dlurl':   el.downloads.downloadurl.content
				}
				if (version_compare(myUpdate.version, akeeba_update.version, 'ge'))
				{
					akeeba_update = myUpdate;
				}
			});

			if (version_compare(akeeba_update.version, akeeba_version, 'gt'))
			{
				notifyAboutUpdates();
			}
		}

		function notifyAboutUpdates()
		{
			$('#update-version').text(akeeba_update.version);
			$('#update-dlnow').attr('href', akeeba_update.dlurl);
			$('#update-whatsnew').attr('href', akeeba_update.infourl);
			$('#update-notification').show('slow');
		}

		<?php callExtraFeature('onExtraHeadJavascript'); ?>
	</script>
	<?php
}

/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

function echoTranslationStrings()
{
	callExtraFeature('onLoadTranslations');
	$translation = AKText::getInstance();
	echo $translation->asJavascript();
}

function echoPage()
{
	$edition         = KICKSTARTPRO ? 'Professional' : 'Core';
	$bestArchivePath = AKKickstartUtils::getBestArchivePath();
	$filelist        = AKKickstartUtils::getArchivesAsOptions($bestArchivePath);
	?>
	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
		"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
	<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
		<title>Akeeba Kickstart <?php echo $edition ?> <?php echo VERSION ?></title>
		<style type="text/css" media="all" rel="stylesheet">
			<?php echoCSS();?>
		</style>
		<?php if (@file_exists('jquery.min.js')): ?>
			<script type="text/javascript" src="jquery.min.js"></script>
		<?php else: ?>
			<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
		<?php endif; ?>
		<?php if (@file_exists('json2.min.js')): ?>
			<script type="text/javascript" src="json2.min.js"></script>
		<?php else: ?>
			<script type="text/javascript" src="//yandex.st/json2/2011-10-19/json2.min.js"></script>
		<?php endif; ?>
		<?php if (@file_exists('jquery-ui.min.js')): ?>
			<script type="text/javascript" src="jquery-ui.min.js"></script>
		<?php else: ?>
			<script type="text/javascript"
			        src="//ajax.googleapis.com/ajax/libs/jqueryui/1.9.2/jquery-ui.min.js"></script>
		<?php endif; ?>
		<?php echoHeadJavascript(); ?>
	</head>
	<body>

	<div id="automode" style="display:none;">
		AUTOMODEON
	</div>

	<div id="fade" class="black_overlay"></div>

	<div id="page-container">

		<div id="preextraction" class="white_content">
			<div id="ie7Warning" style="display:none;">
				<h2>Deprecated Internet Explorer version</h2>
				<p>
					This script is not guaranteed to work properly on Internet Explorer 8
					or earlier versions, or on Internet Explorer 9 and higher running
					in compatibility mode.
				</p>
				<p>
					Please use Internet Explorer 9 or later in native mode (the
					&quot;broken page&quot; icon next to the address bar should not be
					enabled). Alternatively, you may use the latest versions of Firefox,
					Safari, Google Chrome or Opera.
				</p>
			</div>

			<h2>THINGS_HEADER</h2>
			<ol>
				<li>THINGS_01</li>
				<li>THINGS_02</li>
				<li>THINGS_03</li>
				<li>THINGS_04</li>
				<li>THINGS_05</li>
				<li>THINGS_06</li>
				<li>THINGS_07</li>
				<li>THINGS_08</li>
				<li>THINGS_09</li>
			</ol>
			<a href="javascript:void(0)" onclick="closeLightbox();">CLOSE_LIGHTBOX</a>
		</div>

		<div id="genericerror" class="white_content">
			<pre id="genericerrorInner"></pre>
		</div>

		<div id="header">
			<div class="title">Akeeba Kickstart <?php echo $edition ?> 5.3.1</div>
		</div>

		<div id="update-notification" style="display: none">
			<p class="update-notify">UPDATE_HEADER</p>
			<p class="update-whyupdate">UPDATE_NOTICE</p>
			<p class="update-links">
				<a href="#" id="update-dlnow">UPDATE_DLNOW</a>
				<a href="#" id="update-whatsnew" target="_blank">UPDATE_MOREINFO</a>
			</p>
		</div>

		<div id="page1">
			<?php callExtraFeature('onPage1'); ?>

			<div id="page1-content">

				<div class="helpme">
					<span>NEEDSOMEHELPKS</span> <a
						href="https://www.akeebabackup.com/documentation/quick-start-guide/using-kickstart.html"
						target="_blank">QUICKSTART</a>
				</div>

				<div class="step1">
					<div class="circle">1</div>
					<h2>SELECT_ARCHIVE</h2>
					<div class="area-container">
						<?php callExtraFeature('onPage1Step1'); ?>
						<div class="clr"></div>

						<label for="kickstart.setup.sourcepath">ARCHIVE_DIRECTORY</label>
			<span class="field">
				<input type="text" id="kickstart.setup.sourcepath"
				       value="<?php echo htmlentities($bestArchivePath); ?>"/>
				<span class="button" id="reloadArchives" style="margin-top:0;margin-bottom:0">RELOAD_ARCHIVES</span>
			</span>
						<br/>

						<label for="kickstart.setup.sourcefile">ARCHIVE_FILE</label>
			<span class="field" id="sourcefileContainer">
				<?php if (!empty($filelist)): ?>
					<select id="kickstart.setup.sourcefile">
						<?php echo $filelist; ?>
					</select>
				<?php else: ?>
					<a href="https://www.akeebabackup.com/documentation/troubleshooter/ksnoarchives.html"
					   target="_blank">NOARCHIVESCLICKHERE</a>
				<?php endif; ?>
			</span>
						<br/>
						<label for="kickstart.jps.password">JPS_PASSWORD</label>
						<span class="field"><input type="password" id="kickstart.jps.password" value=""/></span>
					</div>
				</div>

				<div class="clr"></div>

				<div class="step2">
					<div class="circle">2</div>
					<h2>SELECT_EXTRACTION</h2>
					<div class="area-container">
						<label for="kickstart.procengine">WRITE_TO_FILES</label>
			<span class="field">
				<select id="kickstart.procengine">
					<option value="hybrid">WRITE_HYBRID</option>
					<option value="direct">WRITE_DIRECTLY</option>
					<option value="ftp">WRITE_FTP</option>
					<option value="sftp">WRITE_SFTP</option>
				</select>
			</span><br/>

						<label for="kickstart.setup.ignoreerrors">IGNORE_MOST_ERRORS</label>
						<span class="field"><input type="checkbox" id="kickstart.setup.ignoreerrors"/></span>

						<div id="ftp-options">
							<label for="kickstart.ftp.host">FTP_HOST</label>
							<span class="field"><input type="text" id="kickstart.ftp.host"
							                           value="localhost"/></span><br/>
							<label for="kickstart.ftp.port">FTP_PORT</label>
							<span class="field"><input type="text" id="kickstart.ftp.port" value="21"/></span><br/>
							<div id="ftp-ssl-passive">
								<label for="kickstart.ftp.ssl">FTP_FTPS</label>
								<span class="field"><input type="checkbox" id="kickstart.ftp.ssl"/></span><br/>
								<label for="kickstart.ftp.passive">FTP_PASSIVE</label>
								<span class="field"><input type="checkbox" id="kickstart.ftp.passive"
								                           checked="checked"/></span><br/>
							</div>
							<label for="kickstart.ftp.user">FTP_USER</label>
							<span class="field"><input type="text" id="kickstart.ftp.user" value=""/></span><br/>
							<label for="kickstart.ftp.pass">FTP_PASS</label>
							<span class="field"><input type="password" id="kickstart.ftp.pass" value=""/></span><br/>
							<label for="kickstart.ftp.dir">FTP_DIR</label>
				<span class="field">
                    <input type="text" id="kickstart.ftp.dir" value=""/>
                    <?php //<span class="button" id="browseFTP" style="margin-top:0;margin-bottom:0">FTP_BROWSE</span> ?>
                </span><br/>

							<label for="kickstart.ftp.tempdir">FTP_TEMPDIR</label>
				<span class="field">
					<input type="text" id="kickstart.ftp.tempdir"
					       value="<?php echo htmlentities(AKKickstartUtils::getTemporaryPath()) ?>"/>
					<span class="button" id="checkFTPTempDir">BTN_CHECK</span>
					<span class="button" id="resetFTPTempDir">BTN_RESET</span>
				</span><br/>
							<label></label>
							<span class="button" id="testFTP">BTN_TESTFTPCON</span>
							<a id="notWorking" class="button"
							   href="https://www.akeebabackup.com/documentation/troubleshooter/kscantextract.html"
							   target="_blank">CANTGETITTOWORK</a>
							<br/>
						</div>

					</div>
				</div>

				<div class="clr"></div>

				<div class="step3">
					<div class="circle">3</div>
					<h2>FINE_TUNE</h2>
					<div style="text-align: center;">
						<span id="showFineTune" class="button bluebutton loprofile"
						      style="margin: 0">BTN_SHOW_FINE_TUNE</span>
					</div>
					<div id="fine-tune-holder" class="area-container" style="display: none">
						<label for="kickstart.tuning.min_exec_time">MIN_EXEC_TIME</label>
						<span class="field"><input type="text" id="kickstart.tuning.min_exec_time" value="1"/></span>
						<span>SECONDS_PER_STEP</span><br/>
						<label for="kickstart.tuning.max_exec_time">MAX_EXEC_TIME</label>
						<span class="field"><input type="text" id="kickstart.tuning.max_exec_time" value="5"/></span>
						<span>SECONDS_PER_STEP</span><br/>

						<label for="kickstart.stealth.enable">STEALTH_MODE</label>
						<span class="field"><input type="checkbox" id="kickstart.stealth.enable"/></span><br/>
						<label for="kickstart.stealth.url">STEALTH_URL</label>
						<span class="field"><input type="text" id="kickstart.stealth.url" value=""/></span><br/>

						<label for="kickstart.setup.renameback">RENAME_FILES</label>
						<span class="field"><input type="checkbox" id="kickstart.setup.renameback"
						                           checked="checked"/></span><br/>

						<label for="kickstart.setup.restoreperms">RESTORE_PERMISSIONS</label>
						<span class="field"><input type="checkbox" id="kickstart.setup.restoreperms"/></span><br/>
					</div>
				</div>

				<div class="clr"></div>

				<div class="step4">
					<div class="circle">4</div>
					<h2>EXTRACT_FILES</h2>
					<div class="area-container">
						<span></span>
						<span id="gobutton" class="button">BTN_START</span>
					</div>
				</div>

				<div class="clr"></div>

			</div>

			<div id="ftpdialog" style="display:none;">
				<p class="instructions alert alert-info">FTPBROWSER_LBL_INSTRUCTIONS</p>
				<div class="error alert alert-error" id="ftpBrowserErrorContainer">
					<h3>FTPBROWSER_LBL_ERROR</h3>
					<p id="ftpBrowserError"></p>
				</div>
				<ul id="ak_crumbs" class="breadcrumb"></ul>
				<div class="row-fluid">
					<div class="span12">
						<table id="ftpBrowserFolderList" class="table table-striped">
						</table>
					</div>
				</div>
			</div>
		</div>

		<div id="page2">
			<div id="page2a">
				<div class="circle">5</div>
				<h2>EXTRACTING</h2>
				<div class="area-container">
					<div id="warn-not-close">DO_NOT_CLOSE_EXTRACT</div>
					<div id="progressbar">
						<div id="progressbar-inner">&nbsp;</div>
					</div>
					<div id="currentFile"></div>
				</div>
			</div>

			<div id="extractionComplete" style="display: none">
				<div class="circle">6</div>
				<h2>RESTACLEANUP</h2>
				<div id="runInstaller" class="button">BTN_RUNINSTALLER</div>
				<div id="runCleanup" class="button" style="display:none">BTN_CLEANUP</div>
				<div id="gotoSite" class="button" style="display:none">BTN_SITEFE</div>
				<div id="gotoAdministrator" class="button" style="display:none">BTN_SITEBE</div>
				<div id="gotoPostRestorationRroubleshooting" style="display:none">
					<a href="https://www.akeebabackup.com/documentation/troubleshooter/post-restoration.html"
					   target="_blank">POSTRESTORATIONTROUBLESHOOTING</a>
				</div>
			</div>

			<div id="warningsBox" style="display: none;">
				<div id="warningsHeader">
					<h2>WARNINGS</h2>
				</div>
				<div id="warningsContainer">
					<div id="warnings"></div>
				</div>
			</div>

			<div id="error" style="display: none;">
				<h3>ERROR_OCCURED</h3>
				<p id="errorMessage"></p>
				<div id="gotoStart" class="button">BTN_GOTOSTART</div>
				<div>
					<a href="https://www.akeebabackup.com/documentation/troubleshooter/kscantextract.html"
					   target="_blank">CANTGETITTOWORK</a>
				</div>
			</div>
		</div>

		<div id="footer">
			<div class="copyright">Copyright &copy; 2008&ndash;<?php echo date('Y'); ?> <a
					href="http://www.akeebabackup.com">Nicholas K.
					Dionysopoulos / Akeeba Backup</a>. All legal rights reserved.<br/>

				This program is free software: you can redistribute it and/or modify it under the terms of
				the <a href="http://www.gnu.org/gpl-3.htmlhttp://www.gnu.org/copyleft/gpl.html">GNU General
					Public License</a> as published by the Free Software Foundation, either version 3 of the License,
				or (at your option) any later version.<br/>
				Design credits: <a href="http://internet-inspired.com/">Internet Inspired</a>, heavily modified by
				AkeebaBackup.com
			</div>
		</div>

	</div>

	</body>
	</html>
	<?php
}

/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * Clear the code caches for the extracted files. Used when finalizing the restoration.
 *
 * @return  void
 */
function clearCodeCaches()
{
	// Zend OPcache
	if (function_exists('opcache_reset'))
	{
		opcache_reset();
	}

	// APC code cache
	if (function_exists('apc_clear_cache'))
	{
		@apc_clear_cache();
	}
}

/**
 * Removes all files pertaining to Kickstart.
 *
 * Using when finalizing the archive extraction from the web
 *
 * @param   AKAbstractPostproc   $postProc  The post-processing engine of Akeeba Restore in use
 */
function removeKickstartFiles(AKAbstractPostproc $postProc)
{
	// Remove self
	$postProc->unlink(basename(__FILE__));

	// Delete translations
	$dh = opendir(AKKickstartUtils::getPath());
	if ($dh !== false)
	{
		$basename = basename(__FILE__, '.php');

		while (false !== $file = @readdir($dh))
		{
			if (strstr($file, $basename . '.ini'))
			{
				$postProc->unlink($file);
			}
		}
	}

	// Delete cacert.pem
	$postProc->unlink('cacert.pem');

	// Delete jquery.min.js and json2.min.js
	$postProc->unlink('jquery.min.js');
	$postProc->unlink('json2.min.js');
}

/**
 * Finalization after the restoration. Removes the installation directory, the backup archive and rolls back automatic
 * file renames.
 *
 * @param   AKAbstractUnarchiver  $unarchiver  The unarchiver engine used by Akeeba Restore
 * @param   AKAbstractPostproc    $postProc    The post-processing engine used by Akeeba Restore
 */
function finalizeAfterRestoration(AKAbstractUnarchiver $unarchiver, AKAbstractPostproc $postProc)
{
    // Remove installation
	recursive_remove_directory('installation');

	// Run the renames, backwards
	rollbackAutomaticRenames($unarchiver, $postProc);

	// Delete the archive
	foreach ($unarchiver->archiveList as $archive)
	{
		$postProc->unlink($archive);
	}
}

/**
 * Rolls back automatic file renames.
 *
 * @param   AKAbstractUnarchiver  $unarchiver  The unarchiver engine used by Akeeba Restore
 * @param   AKAbstractPostproc    $postProc    The post-processing engine used by Akeeba Restore
 */
function rollbackAutomaticRenames(AKAbstractUnarchiver $unarchiver, AKAbstractPostproc $postProc)
{
	$renameBack = AKFactory::get('kickstart.setup.renameback', true);

	if ($renameBack)
	{
		$renames = $unarchiver->renameFiles;

		if (!empty($renames))
		{
			foreach ($renames as $original => $renamed)
			{
				$postProc->rename($renamed, $original);
			}
		}
	}
}

/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * Utility class to parse CLI parameters in a POSIX way
 */
class AKCliParams
{
	/**
	 * POSIX-style CLI options. Access them with through the getOption method.
	 *
	 * @var   array
	 */
	protected static $cliOptions = array();

	/**
	 * Parses POSIX command line options and sets the self::$cliOptions associative array. Each array item contains
	 * a single dimensional array of values. Arguments without a dash are silently ignored.
	 *
	 * @return  void
	 */
	public static function parseOptions()
	{
		global $argc, $argv;

		// Workaround for PHP-CGI
		if (!isset($argc) && !isset($argv))
		{
			$query = "";

			if (!empty($_GET))
			{
				foreach ($_GET as $k => $v)
				{
					$query .= " $k";

					if ($v != "")
					{
						$query .= "=$v";
					}
				}
			}

			$query = ltrim($query);
			$argv  = explode(' ', $query);
			$argc  = count($argv);
		}

		$currentName = "";
		$options     = array();

		for ($i = 1; $i < $argc; $i++)
		{
			$argument = $argv[$i];

			$value = $argument;

			if (strpos($argument, "-") === 0)
			{
				$argument = ltrim($argument, '-');

				$name  = $argument;
				$value = null;

				if (strstr($argument, '='))
				{
					list($name, $value) = explode('=', $argument, 2);
				}

				$currentName = $name;

				if (!isset($options[$currentName]) || ($options[$currentName] == null))
				{
					$options[$currentName] = array();
				}
			}

			if ((!is_null($value)) && (!is_null($currentName)))
			{
				$key = null;

				if (strstr($value, '='))
				{
					$parts = explode('=', $value, 2);
					$key   = $parts[0];
					$value = $parts[1];
				}

				$values = $options[$currentName];

				if (is_null($values))
				{
					$values = array();
				}

				if (is_null($key))
				{
					array_push($values, $value);
				}
				else
				{
					$values[$key] = $value;
				}

				$options[$currentName] = $values;
			}
		}

		self::$cliOptions = $options;
	}

	/**
	 * Returns the value of a command line option
	 *
	 * @param   string $key     The full name of the option, e.g. "foobar"
	 * @param   mixed  $default The default value to return
	 * @param   bool   $array   Should I return an array parameter?
	 *
	 * @return  mixed  The value of the option
	 */
	public static function getOption($key, $default = null, $array = false)
	{
		// If the key doesn't exist set it to the default value
		if (!array_key_exists($key, self::$cliOptions))
		{
			self::$cliOptions[$key] = is_array($default) ? $default : array($default);
		}

		if ($array)
		{
			return self::$cliOptions[$key];
		}

		return self::$cliOptions[$key][0];
	}

	/**
	 * Is the specified param key used in the command line?
	 *
	 * @param   string $key The full name of the option, e.g. "foobar"
	 *
	 * @return  mixed  The value of the option
	 */
	public static function hasOption($key)
	{
		return array_key_exists($key, self::$cliOptions);
	}
}

class CLIExtractionObserver extends ExtractionObserver
{
	public static $silent = false;

	public function update($object, $message)
	{
		parent::update($object, $message);

		if (self::$silent)
		{
			return;
		}

		if (!is_object($message))
		{
			return;
		}

		if (!array_key_exists('type', get_object_vars($message)))
		{
			return;
		}

		if ($message->type == 'startfile')
		{
			echo $message->content->file . "\n";
		}
	}

}

/**
 * Routes the Kickstart CLI application
 */
function kickstart_application_cli()
{
	AKCliParams::parseOptions();
	$silent = AKCliParams::hasOption('silent');
	$year   = gmdate('Y');

	if (!$silent)
	{
		echo <<< BANNER
Akeeba Kickstart CLI 5.3.1
Copyright (c) 2008-$year Akeeba Ltd / Nicholas K. Dionysopoulos
-------------------------------------------------------------------------------
Akeeba Kickstart is Free Software, distributed under the terms of the GNU General
Public License version 3 or, at your option, any later version.
This program comes with ABSOLUTELY NO WARRANTY as per sections 15 & 16 of the
license. See http://www.gnu.org/licenses/gpl-3.0.html for details.
-------------------------------------------------------------------------------


BANNER;
	}

	$paths = AKCliParams::getOption('', array(), true);

	if (empty($paths))
	{
		global $argv;

		echo <<< HOWTOUSE
Usage: {$argv[0]} archive.jpa [output_path] [--password=yourPassword]
         [--silent] [--permissions] [--dry-run] [--ignore-errors]


HOWTOUSE;

		die;
	}

	AKFactory::nuke();

	$targetPath  = isset($paths[1]) ? $paths[1] : getcwd();
	$targetPath  = realpath($targetPath);
	$archive     = $paths[0];
	$archive     = realpath($archive);
	$archivePath = dirname($archive);
	$archivePath = empty($archivePath) ? getcwd() : $archivePath;
	$archivePath = empty($archivePath) ? __DIR__ : $archivePath;
	$archiveName = basename($paths[0]);

	$archiveForDisplay = $archive;
	$cwd               = getcwd();

	if ($archivePath == realpath($cwd))
	{
		$archiveForDisplay = $archiveName;
	}

	if (!$silent)
	{
		echo <<< BANNER
Extracting $archiveForDisplay
to folder  $targetPath

BANNER;
	}

	// What am I extracting?
	AKFactory::set('kickstart.setup.sourcepath', $archivePath);
	AKFactory::set('kickstart.setup.sourcefile', $archiveName);
	// JPS password
	AKFactory::set('kickstart.jps.password', AKCliParams::getOption('password'));
	// Restore permissions?
	AKFactory::set('kickstart.setup.restoreperms', AKCliParams::hasOption('permissions'));
	// Dry run?
	AKFactory::set('kickstart.setup.dryrun', AKCliParams::hasOption('dry-run'));
	// Ignore errors?
	AKFactory::set('kickstart.setup.ignoreerrors', AKCliParams::hasOption('ignore-errors'));
	// Do not rename any files (this is the CLI...)
	AKFactory::set('kickstart.setup.renamefiles', array());
	// Optimize time limits
	AKFactory::set('kickstart.tuning.max_exec_time', 20);
	AKFactory::set('kickstart.tuning.run_time_bias', 75);
	AKFactory::set('kickstart.tuning.min_exec_time', 0);
	AKFactory::set('kickstart.procengine', 'direct');

	// Make sure that the destination directory is always set (req'd by both FTP and Direct Writes modes)
	if (empty($targetPath))
	{
		$targetPath = AKKickstartUtils::getPath();
	}

	AKFactory::set('kickstart.setup.destdir', $targetPath);

	$unarchiver = AKFactory::getUnarchiver();
	$observer   = new CLIExtractionObserver();
	$unarchiver->attach($observer);

	if ($silent)
	{
		CLIExtractionObserver::$silent = true;
	}

	if (!$silent)
	{
		echo "\n\n";
	}

	$retArray = array(
		'done' => false,
	);

	while (!$retArray['done'])
	{
		$unarchiver->tick();
		$ret = $unarchiver->getStatusArray();

		if ($ret['Error'] != '')
		{
			$retArray['status']  = false;
			$retArray['done']    = true;
			$retArray['message'] = $ret['Error'];
		}
		elseif (!$ret['HasRun'])
		{
			$retArray['files']    = $observer->filesProcessed;
			$retArray['bytesIn']  = $observer->compressedTotal;
			$retArray['bytesOut'] = $observer->uncompressedTotal;
			$retArray['status']   = true;
			$retArray['done']     = true;
		}
		else
		{
			$retArray['files']    = $observer->filesProcessed;
			$retArray['bytesIn']  = $observer->compressedTotal;
			$retArray['bytesOut'] = $observer->uncompressedTotal;
			$retArray['status']   = true;
			$retArray['done']     = false;
		}

		if (!is_null($observer->totalSize))
		{
			$retArray['totalsize'] = $observer->totalSize;
			$retArray['filelist']  = $observer->fileList;
		}

		$retArray['Warnings'] = $ret['Warnings'];
		$retArray['lastfile'] = $observer->lastFile;

		if (!empty($retArray['Warnings']) && !$silent)
		{
			echo "\n\n";

			foreach ($retArray['Warnings'] as $line)
			{
				echo "\t$line\n";
			}

			echo "\n";
		}
	}

	if (!$silent)
	{
		echo "\n\n";
	}

	if (!$retArray['status'])
	{
		if (!$silent)
		{
			echo "An error has occurred:\n{$retArray['message']}\n\n";
		}

		exit(255);
	}

	// Finalize
	$postProc = AKFactory::getPostProc();

	rollbackAutomaticRenames($unarchiver, $postProc);
	clearCodeCaches();
}

/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * Routes the Kickstart web application
 */
function kickstart_application_web()
{
	$retArray = array(
		'status'  => true,
		'message' => null
	);

	$task = getQueryParam('task', 'display');
	$json = getQueryParam('json');
	$ajax = true;

	switch ($task)
	{
		case 'checkTempdir':
			$retArray['status'] = false;

			if (!empty($json))
			{
				$data = json_decode($json, true);
				$dir  = @$data['kickstart.ftp.tempdir'];

				if (!empty($dir))
				{
					$retArray['status'] = is_writable($dir);
				}
			}
			break;

		case 'checkFTP':
			$retArray['status'] = false;

			if (!empty($json))
			{
				$data = json_decode($json, true);

				foreach ($data as $key => $value)
				{
					AKFactory::set($key, $value);
				}

				if ($data['type'] == 'ftp')
				{
					$ftp = new AKPostprocFTP();
				}
				else
				{
					$ftp = new AKPostprocSFTP();
				}

				$retArray['message'] = $ftp->getError();
				$retArray['status']  = empty($retArray['message']);
			}
			break;

		case 'ftpbrowse':
			if (!empty($json))
			{
				$data = json_decode($json, true);

				$retArray =
					getListing($data['directory'], $data['host'], $data['port'], $data['username'], $data['password'], $data['passive'], $data['ssl']);
			}
			break;

		case 'sftpbrowse':
			if (!empty($json))
			{
				$data = json_decode($json, true);

				$retArray =
					getSftpListing($data['directory'], $data['host'], $data['port'], $data['username'], $data['password']);
			}
			break;

		case 'startExtracting':
		case 'continueExtracting':
			// Look for configuration values
			$retArray['status'] = false;

			if (!empty($json))
			{
				if ($task == 'startExtracting')
				{
					AKFactory::nuke();
				}

				$oldJSON = $json;
				$json    = json_decode($json, true);

				if (is_null($json))
				{
					$json = stripslashes($oldJSON);
					$json = json_decode($json, true);
				}

				if (!empty($json))
				{
					foreach ($json as $key => $value)
					{
						if (substr($key, 0, 9) == 'kickstart')
						{
							AKFactory::set($key, $value);
						}
					}
				}

				// A "factory" variable will override all other settings.
				if (array_key_exists('factory', $json))
				{
					// Get the serialized factory
					$serialized = $json['factory'];
					AKFactory::unserialize($serialized);
					AKFactory::set('kickstart.enabled', true);
				}

				// Make sure that the destination directory is always set (req'd by both FTP and Direct Writes modes)
				$removePath = AKFactory::get('kickstart.setup.destdir', '');

				if (empty($removePath))
				{
					AKFactory::set('kickstart.setup.destdir', AKKickstartUtils::getPath());
				}

				if ($task == 'startExtracting')
				{
					// If the Stealth Mode is enabled, create the .htaccess file
					if (AKFactory::get('kickstart.stealth.enable', false))
					{
						createStealthURL();
					}
				}

				$engine   = AKFactory::getUnarchiver(); // Get the engine
				$observer = new ExtractionObserver(); // Create a new observer
				$engine->attach($observer); // Attach the observer
				$engine->tick();
				$ret = $engine->getStatusArray();

				if ($ret['Error'] != '')
				{
					$retArray['status']  = false;
					$retArray['done']    = true;
					$retArray['message'] = $ret['Error'];
				}
				elseif (!$ret['HasRun'])
				{
					$retArray['files']    = $observer->filesProcessed;
					$retArray['bytesIn']  = $observer->compressedTotal;
					$retArray['bytesOut'] = $observer->uncompressedTotal;
					$retArray['status']   = true;
					$retArray['done']     = true;
				}
				else
				{
					$retArray['files']    = $observer->filesProcessed;
					$retArray['bytesIn']  = $observer->compressedTotal;
					$retArray['bytesOut'] = $observer->uncompressedTotal;
					$retArray['status']   = true;
					$retArray['done']     = false;
					$retArray['factory']  = AKFactory::serialize();
				}

				if (!is_null($observer->totalSize))
				{
					$retArray['totalsize'] = $observer->totalSize;
					$retArray['filelist']  = $observer->fileList;
				}

				$retArray['Warnings'] = $ret['Warnings'];
				$retArray['lastfile'] = $observer->lastFile;
			}
			break;

		case 'cleanUp':
			if (!empty($json))
			{
				$json = json_decode($json, true);

				if (array_key_exists('factory', $json))
				{
					// Get the serialized factory
					$serialized = $json['factory'];
					AKFactory::unserialize($serialized);
					AKFactory::set('kickstart.enabled', true);
				}
			}

			$unarchiver = AKFactory::getUnarchiver(); // Get the engine
			$postProc   = AKFactory::getPostProc();

			finalizeAfterRestoration($unarchiver, $postProc);
			removeKickstartFiles($postProc);
			clearCodeCaches();

			break;

		case 'display':
			$ajax = false;
			echoPage();
			break;

		case 'isJoomla':
			$ajax = true;

			if (!empty($json))
			{
				$json = json_decode($json, true);

				if (array_key_exists('factory', $json))
				{
					// Get the serialized factory
					$serialized = $json['factory'];
					AKFactory::unserialize($serialized);
					AKFactory::set('kickstart.enabled', true);
				}
			}

			$path     = AKFactory::get('kickstart.setup.destdir', '');
			$path     = rtrim($path, '/\\');
			$isJoomla = @is_dir($path . '/administrator');

			if ($isJoomla)
			{
				$isJoomla = @is_dir($path . '/libraries/joomla');
			}

			$retArray = $isJoomla;

			break;

		case 'listArchives':
			$ajax = true;

			$path = null;

			if (!empty($json))
			{
				$json = json_decode($json, true);

				if (array_key_exists('path', $json))
				{
					$path = $json['path'];
				}
			}

			if (empty($path) || !@is_dir($path))
			{
				$filelist = null;
			}
			else
			{
				$filelist = AKKickstartUtils::getArchivesAsOptions($path);
			}

			if (empty($filelist))
			{
				$retArray =
					'<a href="https://www.akeebabackup.com/documentation/troubleshooter/ksnoarchives.html" target="_blank">' .
					AKText::_('NOARCHIVESCLICKHERE')
					. '</a>';
			}
			else
			{
				$retArray = '<select id="kickstart.setup.sourcefile">' . $filelist . '</select>';
			}

			break;

		default:
			$ajax = true;

			if (!empty($json))
			{
				$params = json_decode($json, true);
			}
			else
			{
				$params = array();
			}

			$retArray = callExtraFeature($task, $params);

			break;
	}

	if ($ajax)
	{
		// JSON encode the message
		$json = json_encode($retArray);
		// Do I have to encrypt?
		$password = AKFactory::get('kickstart.security.password', null);

		if (!empty($password))
		{
			$json = AKEncryptionAES::AESEncryptCtr($json, $password, 128);
		}

		// Return the message
		echo "###$json###";
	}
}

/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

// Register additional feature classes
callExtraFeature();

// Is this a CLI call?
$isCli = !isset($_SERVER) || !is_array($_SERVER);

if (isset($_SERVER) && is_array($_SERVER))
{
	$isCli = !array_key_exists('REQUEST_METHOD', $_SERVER);
}

if (isset($_GET) && is_array($_GET) && !empty($_GET))
{
	if (isset($_GET['cli']))
	{
		$isCli = $_GET['cli'] == 1;
	}
	elseif (isset($_GET['web']))
	{
		$isCli = $_GET['web'] != 1;
	}
}

// Route the application
if ($isCli)
{
	kickstart_application_cli();
}
else
{
	kickstart_application_web();
}

/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * Akeeba Kickstart Import from URL add-on feature
 */
class AKFeatureURLImport
{
	private $params = array();

	/**
	 * Echoes extra CSS to the head of the page
	 */
	public function onExtraHeadCSS()
	{

	}

	/**
	 * Echoes extra Javascript to the head of the page
	 */
	public function onExtraHeadJavascript()
	{
		?>

		var akeeba_url_filename = null;

		$(document).ready(function(){
		$('#ak-url-showgui').click(function(e){
		$('#ak-url-gui').show('fast');
		$('#ak-url-progress').hide('fast');
		$('#ak-url-complete').hide('fast');
		$('#ak-url-error').hide('fast');
		$('#page1-content').hide('fast');
		});
		$('#ak-url-hidegui').click(function(e){
		$('#ak-url-gui').hide('fast');
		$('#ak-url-progress').hide('fast');
		$('#ak-url-complete').hide('fast');
		$('#ak-url-error').hide('fast');
		$('#page1-content').show('fast');
		});
		$('#ak-url-reload').click(function(e){
		window.location.reload();
		});
		$('#ak-url-gotoStart').click(function(e){
		$('#ak-url-gui').show('fast');
		$('#ak-url-progress').hide('fast');
		$('#ak-url-complete').hide('fast');
		$('#ak-url-error').hide('fast');
		});
		});

		function onAKURLImport()
		{
		akeeba_url_filename = $('#url\\.filename').val();
		ak_urlimport_start();
		}

		function AKURLsetProgressBar(percent)
		{
		var newValue = 0;

		if(percent <= 1) {
		newValue = 100 * percent;
		} else {
		newValue = percent;
		}

		$('#ak-url-progressbar-inner').css('width',percent+'%');
		}

		function ak_urlimport_start()
		{
		akeeba_error_callback = AKURLerrorHandler;

		$('#ak-url-gui').hide('fast');
		$('#ak-url-progress').show('fast');
		$('#ak-url-complete').hide('fast');
		$('#ak-url-error').hide('fast');

		AKURLsetProgressBar(0);
		$('#ak-url-progresstext').html('');

		var data = {
		'task' : 'urlimport',
		'json' : JSON.stringify({
		'file'        : akeeba_url_filename,
		'frag'        : "-1",
		'totalSize'    : "-1"
		})
		};
		doAjax(data, function(ret){
		ak_urlimport_step(ret);
		});
		}

		function ak_urlimport_step(data)
		{
		// Look for errors
		if(!data.status)
		{
		AKURLerrorHandler(data.error);
		return;
		}

		var totalSize = 0;
		var doneSize = 0;
		var percent = 0;
		var frag = -1;

		// get running stats
		if(array_key_exists('totalSize', data)) {
		totalSize = data.totalSize;
		}
		if(array_key_exists('doneSize', data)) {
		doneSize = data.doneSize;
		}
		if(array_key_exists('percent', data)) {
		percent = data.percent;
		}
		if(array_key_exists('frag', data)) {
		frag = data.frag;
		}

		// Update GUI
		AKURLsetProgressBar(percent);
		//$('#ak-url-progresstext').text( percent+'% ('+doneSize+' / '+totalSize+' bytes)' );
		$('#ak-url-progresstext').text( percent+'% ('+doneSize+' bytes)' );

		post = {
		'task'    : 'urlimport',
		'json'    : JSON.stringify({
		'file'        : akeeba_url_filename,
		'frag'        : frag,
		'totalSize'    : totalSize,
		'doneSize'  : doneSize
		})
		};

		if(percent < 100) {
		// More work to do
		doAjax(post, function(ret){
		ak_urlimport_step(ret);
		});
		} else {
		// Done!
		$('#ak-url-gui').hide('fast');
		$('#ak-url-progress').hide('fast');
		$('#ak-url-complete').show('fast');
		$('#ak-url-error').hide('fast');
		}
		}

		function onAKURLJoomla()
		{
		akeeba_error_callback = AKURLerrorHandler;

		var data = {
		'task' : 'getjurl'
		};

		doAjax(data, function(ret)
		{
		ak_urlimport_gotjurl(ret);
		});
		}

		function onAKURLWordpress()
		{
		$('#url\\.filename').val('http://wordpress.org/latest.zip');
		}

		function ak_urlimport_gotjurl(data)
		{
		var url = '';

		if(array_key_exists('url', data)) {
		url = data.url;
		}

		$('#url\\.filename').val(url);
		}

		function AKURLerrorHandler(msg)
		{
		$('#ak-url-gui').hide('fast');
		$('#ak-url-progress').hide('fast');
		$('#ak-url-complete').hide('fast');
		$('#ak-url-error').show('fast');

		$('#ak-url-errorMessage').html(msg);
		}
		<?php
	}

	/**
	 * Echoes extra HTML on page 1 of Kickstart
	 */
	public function onPage1()
	{

		?>
		<div id="ak-url-gui" style="display: none">
			<div class="step1">
				<div class="circle">1</div>
				<h2>AKURL_TITLE_STEP1</h2>
				<div class="area-container">
					<label for="url.filename">AKURL_FILENAME</label>
					<span class="field"><input type="text" style="width: 45%" id="url.filename" value=""/></span>
					<a id="ak-url-joomla" class="button bluebutton loprofile" onclick="onAKURLJoomla()">AKURL_JOOMLA</a>
					<a id="ak-url-wordpress" class="button bluebutton loprofile" onclick="onAKURLWordpress()">AKURL_WORDPRESS</a>

					<div class="clr"></div>
					<a id="ak-url-connect" class="button" onclick="onAKURLImport()">AKURL_IMPORT</a>
					<a id="ak-url-hidegui" class="button bluebutton">AKURL_CANCEL</a>
				</div>
			</div>
			<div class="clr"></div>
		</div>

		<div id="ak-url-progress" style="display: none">
			<div class="circle">2</div>
			<h2>AKURL_TITLE_STEP2</h2>
			<div class="area-container">
				<div id="ak-url-importing">
					<div class="warn-not-close">AKURL_DO_NOT_CLOSE</div>
					<div id="ak-url-progressbar" class="progressbar">
						<div id="ak-url-progressbar-inner" class="progressbar-inner">&nbsp;</div>
					</div>
					<div id="ak-url-progresstext"></div>
				</div>
			</div>
		</div>

		<div id="ak-url-complete" style="display: none">
			<div class="circle">3</div>
			<h2>AKURL_TITLE_STEP3</h2>
			<div class="area-container">
				<div id="ak-url-reload" class="button">AKURL_BTN_RELOAD</div>
			</div>
		</div>

		<div id="ak-url-error" class="error" style="display: none;">
			<h3>ERROR_OCCURED</h3>
			<p id="ak-url-errorMessage" class="errorMessage"></p>
			<div id="ak-url-gotoStart" class="button">BTN_GOTOSTART</div>
		</div>
		<?php
	}

	/**
	 * Outputs HTML to be shown before Step 1's archive selection pane
	 */
	public function onPage1Step1()
	{
		?>
		<a id="ak-url-showgui" class="button bluebutton loprofile">AKURL_IMPORT</a>
		<?php
	}

	public function urlimport($params)
	{
		$this->params = $params;

		// Fetch data
		$filename  = $this->getParam('file');
		$frag      = $this->getParam('frag', -1);
		$totalSize = $this->getParam('totalSize', -1);
		$doneSize  = $this->getParam('doneSize', -1);

		debugMsg('Importing from URL');
		debugMsg('  file      : ' . $filename);
		debugMsg('  frag      : ' . $frag);
		debugMsg('  totalSize : ' . $totalSize);
		debugMsg('  doneSize  : ' . $doneSize);

		// Init retArray
		$retArray = array(
			"status"    => true,
			"error"     => '',
			"frag"      => $frag,
			"totalSize" => $totalSize,
			"doneSize"  => $doneSize,
			"percent"   => 0,
		);

		try
		{
			AKFactory::set('kickstart.tuning.max_exec_time', '5');
			AKFactory::set('kickstart.tuning.run_time_bias', '75');
			$timer = new AKCoreTimer();
			$start = $timer->getRunningTime(); // Mark the start of this download
			$break = false; // Don't break the step

			while (($timer->getTimeLeft() > 0) && !$break)
			{
				// Figure out where on Earth to put that file
				$fileparts = explode('?', $filename, 2);
				$local_file = KSROOTDIR . '/' . basename($fileparts[0]);

				debugMsg("- Importing from $filename");

				// Do we have to initialize the file?
				if ($frag == -1)
				{
					debugMsg("-- First frag, killing local file");
					// Currently downloaded size
					$doneSize = 0;

					// Delete and touch the output file
					@unlink($local_file);
					$fp = @fopen($local_file, 'wb');

					if ($fp !== false)
					{
						@fclose($fp);
					}

					// Init
					$frag = 0;
				}

				// Calculate from and length
				$length = 1048576;
				$from   = $frag * $length;
				$to     = $length + $from - 1;
				//if($from == 0) $from = 1;

				// Try to download the first frag
				$temp_file = $local_file . '.tmp';
				@unlink($temp_file);
				$required_time = 1.0;
				debugMsg("-- Importing frag $frag, byte position from/to: $from / $to");

				$filesize = 0;

				try
				{
					$ch = curl_init();
					curl_setopt($ch, CURLOPT_URL, $filename);
					curl_setopt($ch, CURLOPT_RANGE, "$from-$to");
					curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
					curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
					@curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

					if (defined('AKEEBA_CACERT_PEM'))
					{
						curl_setopt($ch, CURLOPT_CAINFO, AKEEBA_CACERT_PEM);
					}

					$result = curl_exec($ch);

					$errno       = curl_errno($ch);
					$errmsg      = curl_error($ch);
					$http_status = curl_getinfo($ch, CURLINFO_HTTP_CODE);

					if ($result === false)
					{
						$error = "cURL error $errno: $errmsg";
					}
					elseif ($http_status > 299)
					{
						$result = false;
						$error  = "HTTP status $http_status";
					}
					else
					{
						$result = file_put_contents($temp_file, $result);

						if ($result === false)
						{
							$error = "Could not open temporary file $temp_file for writing";
						}
					}

					curl_close($ch);
				}
				catch (Exception $e)
				{
					$error = $e->getMessage();
				}

				if (!$result)
				{
					@unlink($temp_file);

					// Failed download
					if ($frag == 0)
					{
						// Failure to download first frag = failure to download. Period.
						$retArray['status'] = false;
						$retArray['error']  = $error;

						debugMsg("-- Download FAILED");

						return $retArray;
					}
					else
					{
						// Since this is a staggered download, consider this normal and finish
						$frag = -1;
						debugMsg("-- Import complete");
						$doneSize = $totalSize;
						$break    = true;
						continue;
					}
				}

				// Add the currently downloaded frag to the total size of downloaded files
				if ($result)
				{
					clearstatcache();
					$filesize = (int) @filesize($temp_file);
					debugMsg("-- Successful download of $filesize bytes");
					$doneSize += $filesize;

					// Append the file
					$fp = @fopen($local_file, 'ab');

					if ($fp === false)
					{
						debugMsg("-- Can't open local file for writing");
						// Can't open the file for writing
						@unlink($temp_file);
						$retArray['status'] = false;
						$retArray['error']  = 'Can\'t write to the local file';

						return false;
					}

					$tf = fopen($temp_file, 'rb');

					while (!feof($tf))
					{
						$data = fread($tf, 262144);
						fwrite($fp, $data);
					}

					fclose($tf);
					fclose($fp);
					@unlink($temp_file);

					debugMsg("-- Temporary file merged and removed");

					if ($filesize > $length)
					{
						debugMsg("-- Read more data than the requested length. I assume this file is complete.");
						$break = true;
						$frag  = - 1;
					}
					elseif ($filesize < $length)
					{
						debugMsg("-- Read less data than the requested length. I assume this file is complete.");
						$break = true;
						$frag  = - 1;
					}
					else
					{
						$frag++;

						debugMsg("-- Proceeding to next fragment, frag $frag");
					}
				}

				// Advance the frag pointer and mark the end
				$end = $timer->getRunningTime();

				// Do we predict that we have enough time?
				$required_time = max(1.1 * ($end - $start), $required_time);

				if ($required_time > (10 - $end + $start))
				{
					$break = true;
				}

				$start = $end;
			}

			if ($frag == -1)
			{
				$percent = 100;
			}
			elseif ($doneSize <= 0)
			{
				$percent = 0;
			}
			else
			{
				if ($totalSize > 0)
				{
					$percent = 100 * ($doneSize / $totalSize);
				}
				else
				{
					$percent = 0;
				}
			}

			// Update $retArray
			$retArray = array(
				"status"    => true,
				"error"     => '',
				"frag"      => $frag,
				"totalSize" => $totalSize,
				"doneSize"  => $doneSize,
				"percent"   => $percent,
			);
		}
		catch (Exception $e)
		{
			debugMsg("EXCEPTION RAISED:");
			debugMsg($e->getMessage());
			$retArray['status'] = false;
			$retArray['error']  = $e->getMessage();
		}

		return $retArray;
	}

	private function getParam($key, $default = null)
	{
		if (array_key_exists($key, $this->params))
		{
			return $this->params[$key];
		}
		else
		{
			return $default;
		}
	}

	public function getjurl($params)
	{
		return array(
			"url" => $this->getLatestJoomlaURL(),
		);
	}

	private function getLatestJoomlaURL()
	{
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, 'https://downloads.joomla.org/latest');
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
		@curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

		if (defined('AKEEBA_CACERT_PEM'))
		{
			curl_setopt($ch, CURLOPT_CAINFO, AKEEBA_CACERT_PEM);
		}

		$pageHTML    = curl_exec($ch);
		$http_status = curl_getinfo($ch, CURLINFO_HTTP_CODE);

		if (($pageHTML === false) || ($http_status >= 300))
		{
			return '';
		}

		// Convert HTML to XML
		$dom = new DOMDocument();
		$dom->loadHTML($pageHTML);
		$xml = $dom->saveXML();

		// Load XML in a SimpleXMLElement
		$doc = new SimpleXMLElement($xml);

		// Find the download links for the ZIP format
		$links = $doc->xpath("//a[contains(@href,'format=zip')]");
		$dlLinkAttributes = $links[0]->attributes();

		// Make it into an absolute URL and return it
		return $this->resolveRedirect('https://downloads.joomla.org' . $dlLinkAttributes['href']);
	}

	private function resolveRedirect($url)
	{
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_NOBODY, 1);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
		curl_setopt($ch, CURLOPT_HEADER, 1);
		@curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0);

		if (defined('AKEEBA_CACERT_PEM'))
		{
			curl_setopt($ch, CURLOPT_CAINFO, AKEEBA_CACERT_PEM);
		}

		$headers     = curl_exec($ch);
		$http_status = curl_getinfo($ch, CURLINFO_HTTP_CODE);

		if (($http_status < 300) || ($http_status > 399))
		{
			return $url;
		}

		$headers = explode("\r", $headers);
		$headers = array_map('trim', $headers);
		$newURL = '';

		foreach ($headers as $line)
		{
			if (strpos($line, 'Location') === false)
			{
				continue;
			}

			list($junk, $newURL) = explode(':', $line, 2);
			$newURL = trim($newURL);
		}

		return $this->resolveRedirect($newURL);
	}

	public function onLoadTranslations()
	{
		$translation = AKText::getInstance();
		$translation->addDefaultLanguageStrings(array(
			'AKURL_IMPORT'       => "Import from URL",
			'AKURL_TITLE_STEP1'  => "Specify the URL",
			'AKURL_FILENAME'     => "URL to import",
			'AKURL_JOOMLA'       => "Latest Joomla! release",
			'AKURL_WORDPRESS'    => "Latest WordPress release",
			'AKURL_CANCEL'       => "Cancel import",
			'AKURL_TITLE_STEP2'  => "Importing...",
			'AKURL_DO_NOT_CLOSE' => "Please do not close this window while your backup archives are being imported",
			'AKURL_TITLE_STEP3'  => "Import is complete",
			'AKURL_BTN_RELOAD'   => "Reload Kickstart",
		));
	}
}


/**
 * Akeeba Kickstart
 * A JSON-powered archive extraction tool
 *
 * @copyright   2008-2017 Nicholas K. Dionysopoulos / AkeebaBackup.com
 * @license     GNU GPL v2 or - at your option - any later version
 * @package     akeebabackup
 * @subpackage  kickstart
 */

/**
 * This is an Easter Egg feature. Run Kickstart as kickstart.php?george and a hideous orange template with the font face
 * everyone loves to hate will burn your eyes out of their socket. HAHAHAHAHA!
 */
class AKFeatureGeorgeWSpecialEdition
{
	/**
	 * Echoes extra CSS to the head of the page
	 */
	public function onExtraHeadCSS()
	{
		if (!isset($_REQUEST['george']))
		{
			return;
		}

		echo <<< CSS
html {
    background: #FFA500;
}

body {
	font-family: "Comic Sans MS";
}

#header {
	background: #FFA500;
	color: red;
	font-weight: bold;
}

#footer {
	color: #333;
	background: #FFA500;
}

#footer a {
	color: #f33;
}

h2 {
	background: #FFA500;
	color: #993300;
}

.button:active {
	border: 1px solid #FFA500;
}

.ui-button {
    font-family: "Comic Sans MS";
}

.ribbon-box {
   width:100%;
   height:400px;
   margin-top: -4.5em;
   right: 5px;
   position: absolute;
}
.ribbon {
   position: absolute;
   right: -5px; top: -5px;
   z-index: 1;
   overflow: hidden;
   width: 450px; height: 450px;
   text-align: right;
}
.ribbon span {
   font-size: 12pt;
   color: red;
   text-transform: uppercase;
   text-align: center;
   font-weight: bold;
   line-height: 20px;
   transform: rotate(45deg);
   -webkit-transform: rotate(45deg); /* Needed for Safari */
   width: 300px; display: block;
   background: #FFA500;
   background: linear-gradient(#FFA500 0%, #FFA500 100%);
   position: absolute;
   border: thin solid firebrick;
   top: 80px;
   right: -55px;
   box-shadow: yellow 1px 1px 20px;
   text-shadow: 1px 1px 2px white;
}
CSS;

	}

	public function onExtraHeadJavascript()
	{
		if (!isset($_REQUEST['george']))
		{
			return;
		}

		echo <<< JS
// Matrix effect from http://thecodeplayer.com/walkthrough/matrix-rain-animation-html5-canvas-javascript
var c = null;
var ctx = null;

//japanese characters - taken from the unicode charset
var japanese = "あいうえおかきくけこさしすせそがぎぐげごぱぴぷぺぽ";
//converting the string into an array of single characters
japanese = japanese.split("");

var font_size = 14;
var columns = 0; //number of columns for the rain
//an array of drops - one per column
var drops = [];

//drawing the characters
function draw()
{
	//Black BG for the canvas
	//translucent BG to show trail
	ctx.fillStyle = "rgba(0, 0, 0, 0.05)";
	ctx.fillRect(0, 0, c.width, c.height);

	ctx.fillStyle = "#0F0"; //green text
	ctx.font = font_size + "px Arial";

	//looping over drops
	for(var i = 0; i < drops.length; i++)
	{
		//a random japanese character to print
		var text = japanese[Math.floor(Math.random()*japanese.length)];
		//x = i*font_size, y = value of drops[i]*font_size
		ctx.fillText(text, i*font_size, drops[i]*font_size);

		//sending the drop back to the top randomly after it has crossed the screen
		//adding a randomness to the reset to make the drops scattered on the Y axis
		if(drops[i]*font_size > c.height && Math.random() > 0.975)
			drops[i] = 0;

		//incrementing Y coordinate
		drops[i]++;
	}
}

/*
 * Konami Code Javascript Object
 * 1.3.0, 7 March 2014
 *
 * Using the Konami code, easily configure an Easter Egg for your page or any element on the page.
 *
 * Options:
 * - code : set your own custom code, takes array of keycodes / default is original Konami code
 * - cheat : the function to call when the proper sequence is entered
 * - elem : the element to set the instance on
 *
 * Copyright 2013 - 2014 Kurtis Kemple, http://kurtiskemple.com
 * Released under the MIT License
 */

var KONAMI = function ( options ) {
	var elem, ret, defaults, keycode, config, cache;

	// set the default code,function, and element
	defaults = {
		code : [38,38,40,40,37,39,37,39,66,65],
		cheat : null,
		elem : window
	};

	// build our return object
	ret = {

		/**
		 * handles the initialization of the KONAMI instance
		 *
		 * @param  {object} options the config to pass in to the instance
		 * @return {none}
		 * @method  init
		 * @public
		 */
		init : function ( options ) {
			cache = [], config = {};

			if ( options ) {

				for ( var key in defaults ) {

					if ( defaults.hasOwnProperty( key ) ) {

						if ( !options[ key ] ) {

							config[ key ] = defaults[ key ];
						} else {

							config[ key ] = options[ key ];
						}
					}
				}
			} else {

				config = defaults;
			}

			ret.bind( config.elem, 'keyup', ret.konami );
		},

		/**
		 * handles disassembling of the instance
		 *
		 * @return {none}
		 * @method  destroy
		 * @public
		 */
		destroy : function () {
			ret.unbind( config.elem, 'keyup', ret.konami );
			cache = config = null;
		},

		/**
		 * handles adding events to elements
		 *
		 * @param   {elem}     elem  DOM element to attach to
		 * @param   {string}   evt   the event type to bind to
		 * @param   {Function} fn    the function to bind
		 * @return  {none}
		 * @method  bind
		 * @private
		 */
		bind : function ( elem, evt, fn ) {
			if ( elem.addEventListener ) {

				elem.addEventListener( evt, fn, false );
			} else if ( elem.attachEvent ) {

				elem.attachEvent( 'on'+ evt, function( e ) {
					fn( e || window.event );
				});
			}
		},

		/**
		 * handles removing events from elements
		 *
		 * @param   {elem}     elem DOM element to remove from
		 * @param   {string}   evt  the event type to unbind
		 * @param   {Function} fn   the function to unbind
		 * @return  {none}
		 * @method  unbind
		 * @private
		 */
		unbind : function ( elem, evt, fn ) {
			if ( elem.removeEventListener ) {

				elem.removeEventListener( evt, fn, false );
			} else if ( elem.detachEvent ) {

				elem.detachEvent( 'on' + evt, function( e ) {
					fn( e || window.event );
				});
			}
		},

		/**
		 * handles the business logic for checking for valid konami code
		 *
		 * @param   {object} e the event object
		 * @return  {none}
		 * @method  konami
		 * @private
		 */
		konami : function( e ) {
			keycode = e.keyCode || e.which;

			if ( config.code.length > cache.push( keycode ) ) {

				return;
			}

			if ( config.code.length < cache.length ) {

				cache.shift();
			}

			if ( config.code.toString() !== cache.toString() ) {

				return;
			}

			config.cheat();
		}
	};

	ret.init( options );
	return ret;
};

var options = {
	cheat : function() {
		c = document.createElement('canvas');
		window.jQuery('html').html('').append(c);
		window.jQuery(c).attr('id', 'c');

		//making the canvas full screen
		c.height = window.innerHeight;
		c.width = window.innerWidth;
		c.left = 0;
		c.top = 0;

		ctx = c.getContext("2d");
		columns = c.width/font_size; //number of columns for the rain

		p1 = document.getElementById('page1');
		window.jQuery(p1).hide();

		//x below is the x coordinate
		//1 = y co-ordinate of the drop(same for every drop initially)
		for(var x = 0; x < columns; x++)
			drops[x] = 1;

		setInterval(draw, 33);
	}
};

var konamiCode = new KONAMI( options );

JS;

	}

	/**
	 * Echoes extra HTML on page 1 of Kickstart
	 */
	public function onPage1()
	{
		if (!isset($_REQUEST['george']))
		{
			return;
		}

		echo <<< HTML
<div class="ribbon-box">
	<div class="ribbon">
		<span>George W. Edition</span>
	</div>
</div>
HTML;

	}

	/**
	 * Outputs HTML to be shown before Step 1's archive selection pane
	 */
	public function onPage1Step1()
	{
	}
}

