<?php
/**
 * ------------------------------------------------------------------------
 * JA Extenstion Manager Component for J3.x
 * ------------------------------------------------------------------------
 * Copyright (C) 2004-2011 J.O.O.M Solutions Co., Ltd. All Rights Reserved.
 * @license - GNU/GPL, http://www.gnu.org/licenses/gpl.html
 * Author: J.O.O.M Solutions Co., Ltd
 * Websites: http://www.joomlart.com - http://www.joomlancers.com
 * ------------------------------------------------------------------------
 */
// no direct access
defined ( '_JEXEC' ) or die ( 'Restricted access' );
jimport('joomla.filesystem.file');
jimport('joomla.filesystem.folder');
class jaProducts
{
	var $isSupported = 1;
	var $ws_mode = '';
	var $ws_uri = '';
	var $ws_user = '';
	var $ws_pass = '';
	var $repo = ''; //on local: is path to site 
	var $coreVersion = '';
	var $type = '';
	var $name = '';
	var $folder = '';
	var $group = '';
	var $extId = ''; //Unique Key (on local), format: type-id
	var $uniqueKey = ''; //Unique Key (on server)
	var $extKey = ''; //extension key
	var $version = '';
	var $crc = '';
	/**
	 * object config
	 *
	 * @var (UpdaterConfig) $config
	 */
	var $config;
	var $configFile = '';
	var $ignores = array("^\..*", "jabk", "jaupdater");


	function __construct(&$row, $config, $refresh = false)
	{
		$this->config = $config;
		
		$this->setRepoPath($config->get("REPO_PATH").'/');
		$infoRequired = array('type', 'name', 'extKey', 'version');
		
		foreach ($infoRequired as $info) {
			if (!isset($row->$info)) {
				return false;
			}
		}
		foreach ($row as $key => $value) {
			if ($key == 'description') {
				//remove description since it can make message to be incorrect format
				continue;
			}
			$this->$key = $value;
		}
		
		$this->coreVersion = (isset($row->coreVersion)) ? $row->coreVersion : 'j15';
		
		//create unique key
		if (!isset($row->uniqueKey) || empty($row->uniqueKey)) {
			$this->uniqueKey = "{$this->extKey}_{$this->coreVersion}";
			if(!empty($this->folder)) {
				$this->uniqueKey = $this->folder . '_' . $this->uniqueKey;
			}
		}
		
		$this->setInfo($refresh);
	}


	function setInfo($refresh = false, $fileInfo = '')
	{
		if (!JFile::exists($fileInfo)) {
			$fileInfo = $this->getInfoFile();
		}
		
		if (!JFile::exists($fileInfo) || $refresh) {
			if ($this->updateInfo() === false) {
				return false;
			}
		}
		
		$xml = new jaXmlParser();
		$xml->loadFile($fileInfo);
		$obj = $xml->toObject();
		$parentNode = $obj->japroduct->children;
		$this->extKey = (string) $parentNode->extKey->value;
		$this->crc = (string) $parentNode->crc->value;
		
		return true;
	}


	/**
	 * get Informations of Products to send to server
	 * get only some basic information
	 */
	function getInfo()
	{
		$obj = new stdClass();
		$aInfo = array('isSupported' => 1, 'ws_mode' => '', 'ws_uri' => '', 'ws_user' => '', 'ws_pass' => '', 'coreVersion' => 'j15', 'type' => '', 'name' => '', 'folder' => '', 'group' => '', 'extKey' => '', 'uniqueKey' => '', 'version' => '', 'configFile' => '');
		foreach ($aInfo as $info => $value) {
			$obj->$info = isset($this->$info) ? $this->$info : $value;
		}
		return $obj;
	}


	function getFullInfo()
	{
		$vars = get_object_vars($this);
		$aExclude = array('config', 'description');
		
		$obj = new stdClass();
		foreach ($vars as $key => $value) {
			if (!in_array($key, $aExclude))
				$obj->$key = $value;
		}
		return $obj;
	}


	function setSupport($status)
	{
		$this->isSupported = $status;
	}


	function isSupported()
	{
		return (int) $this->isSupported;
	}


	function setRepoPath($path)
	{
		$FileSystemHelper = new FileSystemHelper();
		$this->repo = $FileSystemHelper->clean($path.'/');
	}


	function getRepoPath()
	{
		return $this->repo;
	}


	function getBackupPath()
	{
		global $jauc;
		$config = $this->config;
		$backupDir = $jauc->getLocalBackupPath($this->getInfo());
		
		if ($backupDir === false) {
			return false;
		} else {
			return $backupDir;
		}
	}


	function genChecksum()
	{
		$md5CheckSums = new CheckSumsMD5();
		$location = $this->getLocation();
		$cnt = count($location);
		
		$crc = new stdClass();
		foreach ($location as $name => $path) {
			if ($this->isIgnore($name))
				continue;
			if (JFolder::exists($path)) {
				if ($name != 'location') {
					$crc->$name = $md5CheckSums->dumpCRCObject($path);
				} else {
					$crc = $md5CheckSums->dumpCRCObject($path);
				}
			} elseif (JFile::exists($path)) {
				$crc->$name = $md5CheckSums->getCheckSum($path);
			}
		}
		
		return json_encode($crc);
	}


	function getInfoFile()
	{
		$location = $this->getLocation();
		switch ($this->type) {
			case 'component':
				if (isset($location['admin']))
					$path = $location['admin'];
				elseif (isset($location['site']))
					$path = $location['site'];
				break;
			case 'module':
				if (isset($location['location']))
					$path = $location['location'];
				break;
			case 'plugin':
				$path = dirname($location['location']).'/';
				break;
			case 'template':
				if (isset($location['location']))
					$path = $location['location'];
				break;
			default:
				//not match any type
				return false;
				break;
		}
		if (isset($path) && JFolder::exists($path)) {
			return $path . "jaupdater.{$this->extKey}.xml";
		} else {
			return false;
		}
	}


	function updateInfo()
	{
		$fileInfo = $this->getInfoFile();
		if ($fileInfo === false) {
			return false;
		}
		
		$xml = new jaXmlParser();
		$xml->loadFile($this->configFile);
		$obj = $xml->toObject();
		if (isset($obj->extension)) {
			$parentNode = $obj->extension->children;
		} elseif (isset($obj->install)) {
			$parentNode = $obj->install->children;
		} else {
			return false;
		}
		
		$version = $parentNode->version->value;
		$name = htmlspecialchars(trim($parentNode->name->value));
		
		$dateCreated = date('r');
		$crc = $this->genChecksum();
		
		$xmlContent = <<<XML
<?xml version="1.0" encoding="utf-8"?>
<japroduct>
  <type>$this->type</type>
  <name>$name</name>
  <extKey>$this->extKey</extKey>
  <version>$version</version>
  <date>$dateCreated</date>
  <crc>
    <![CDATA[
      $crc
    ]]>
  </crc>
</japroduct>
XML;
		$result = JFile::write($fileInfo, $xmlContent);
		
		return $result;
	}


	/**
	 * upgrade to newer version
	 *
	 * @param unknown_type $upgradePackage
	 * 
	 * @desc rule to update for local version
	 * - new (new file in new version): add to
	 * - updated (updated file in new version): replace a curren file (required!)
	 * - removed (removed file in new version): delete current file
	 * - ucreated (created by user): do nothing
	 * - umodified (modified by user): do nothing
	 * - nochange (nochange): do nothing
	 */
	function doUpgrade($upgradePackage, $upgradeVersion)
	{
		$FileSystemHelper = new FileSystemHelper();
		
		$config = $this->config;
		
		if (!JFile::exists($upgradePackage)) {
			return false;
		}
		//auto backup when upgrade
		$fileBackup = $this->doBackup();
		
		//upgrade process
		$workingDir = $FileSystemHelper->tmpDir(null, 'ja', 0755);
		$zipFile = $workingDir . $this->extKey . ".zip";
		JFile::copy($upgradePackage, $zipFile);
		
		ArchiveHelper::unZip($zipFile, $workingDir);
		//upgrade
		$workingDir = $workingDir . $this->extKey.'/';
		
		$jsonFile = $workingDir . "jaupdater.info.json";
		if (!JFile::exists($jsonFile)) {
			return false;
		}
		$upgradeInfo = file_get_contents($jsonFile);
		$objectFilter = json_decode($upgradeInfo);
		

		//backup conflicted files
		$folderBackup = $FileSystemHelper->stripExt($fileBackup);
		$this->doBackupConflictedFiles($upgradeVersion, $folderBackup);
		//
		$this->_applyPackage($workingDir, $objectFilter, 'upgrade');
		return true;
	}


	/**
	 * Recovery to old version
	 *
	 * @param unknown_type $upgradePackage
	 * 
	 */
	function doRecovery($product, $folder, $file)
	{
		global $jauc;
		$FileSystemHelper = new FileSystemHelper();
		//auto backup when recovery
		$this->doBackup();
		// upgrade process
		$workingDir = $FileSystemHelper->tmpDir(null, 'ja', 0755);
		$zipFile = $folder . $file;
		
		ArchiveHelper::unZip($zipFile, $workingDir);
		$workingDir = $workingDir . $this->extKey.'/';
		
		$objectFilter = new stdClass();
		$this->_applyPackage($workingDir, $objectFilter, 'rollback');
		
		//get backup info
		$fileInfo = $folder . $FileSystemHelper->stripExt($file) . ".txt";
		if (($data = $jauc->_parseBackupInfo($fileInfo)) !== false) {
			return $data["version"];
		} else {
			return "";
		}
	}


	function _applyPackage($src, $objectFilter, $context = 'upgrade')
	{
		global $jauc;
		//get array version of newer version
		//it will support for downgrade purpose
		$aVersions = $this->_parseListVersions();
		//
		$FileSystemHelper = new FileSystemHelper();

		$locations = $this->getLocation();
		switch ($this->type) {
			case 'module':
				$xmlinstall = $src . $this->extKey . ".xml";
				$FileSystemHelper->cp($src, $locations['location'], true);
				$this->_applyFileRemoved($objectFilter, $locations['location']);
				break;
			case 'template':
				$xmlinstall = $src . "templateDetails.xml";
				$FileSystemHelper->cp($src, $locations['location'], true);
				$this->_applyFileRemoved($objectFilter, $locations['location']);
				break;
			case 'component':
				if (isset($locations['admin']) && JFolder::exists($src . 'admin')) {
					$FileSystemHelper->cp($src . 'admin', $locations['admin'], true);
					if (isset($objectFilter->admin)) {
						$this->_applyFileRemoved($objectFilter->admin, $locations['admin']);
					}
				}
				if (isset($locations['site']) && JFolder::exists($src . 'site')) {
					$FileSystemHelper->cp($src . 'site', $locations['site'], true);
					if (isset($objectFilter->site)) {
						$this->_applyFileRemoved($objectFilter->site, $locations['site']);
					}
				}
				
				//Fix xml file remove com_
				$xmlfileold = basename($this->configFile);
				$xmlfilenew = str_replace('com_','',$xmlfileold);
				if (isset($objectFilter->$xmlfileold) && isset($objectFilter->$xmlfilenew)) {
					if($objectFilter->$xmlfileold == 'removed' && $objectFilter->$xmlfilenew=='new'){
						if(JFile::exists($locations['admin'].$xmlfileold)){
							@rename($this->configFile, $locations['admin'].$xmlfilenew);
							$this->configFile = str_replace($xmlfileold,$xmlfilenew,$this->configFile);
						}
					}
				}
				//exception: xml config file for component
				$xmlfile = basename($this->configFile);
				
				$xmlinstall = '';
				if (JFile::exists($src . $xmlfile)) {
					$xmlinstall = $src . $xmlfile;
				} elseif (JFile::exists($src . 'admin/'.$xmlfile)) {
					$xmlinstall = $src . 'admin/'.$xmlfile;
				} elseif (JFile::exists($src . 'site/'.$xmlfile)) {
					$xmlinstall = $src . 'site/'.$xmlfile;
				}
				if (JFile::exists($xmlinstall)) {
					$FileSystemHelper->cp($xmlinstall, $this->configFile, true);
				}
				break;
			case 'plugin':
				$xmlinstall = $src . $this->extKey . ".xml";
				if (isset($locations['location']) && JFolder::exists($src)) {
					$FileSystemHelper->cp($src, $locations['location'], true);
					if (isset($objectFilter)) {
						$this->_applyFileRemoved($objectFilter, $locations['location']);
					}
				}
				
				break;
		}
		
		//apply language
		jimport('joomla.application.helper');
		if ($context == 'rollback') {
			$languageBak = 'en-GB';
			//admin
			$srcLangPath = $src . 'lang/admin';
			if (JFolder::exists($srcLangPath)) {
				$client = JApplicationHelper::getClientInfo(1);
				$dstLangPath = $client->path.'/language/'.$languageBak;
				JFolder::copy($srcLangPath, $dstLangPath, '', true);
			}
			//site
			$srcLangPath = $src . 'lang/site';
			if (JFolder::exists($srcLangPath)) {
				$client = JApplicationHelper::getClientInfo(0);
				$dstLangPath = $client->path.'/language/'.$languageBak;
				JFolder::copy($srcLangPath, $dstLangPath, '', true);
			}
		} else {
			//context = upgrade
			if (isset($xmlinstall) && JFile::exists($xmlinstall)) {
				$oXml = JFactory::getXML($xmlinstall);
				if ($oXml) {
					$xmlManifest = $oXml;
					switch ($this->type) {
						case 'module':
						case 'template':
							if ($cname = (string) $xmlManifest->attributes()->client) {
								// Attempt to map the client to a base path
								$client = JApplicationHelper::getClientInfo($cname, true);
								
								if ($client === false) {
									$clientId = 0;
								} else {
									$clientId = $client->id;
								}
							} else {
								// No client attribute was found so we assume the site as the client
								$clientId = 0;
							}
							$this->parseLanguages($src, $xmlManifest->languages, $clientId);
							break;
						case 'component':
							$this->parseLanguages($src, $xmlManifest->languages, 0);
							$this->parseLanguages($src, $xmlManifest->administration->languages, 1);
							break;
						case 'plugin':
							$this->parseLanguages($src, $xmlManifest->languages, 1);
							break;
					}
				}
			}
		}
		
		//apply database
		if ($this->type == 'component' && JFile::exists($xmlinstall)) {
			$beforeVersion = $this->version;
			$this->setInfo(true);
			$afterVersion = $this->version;
			
			if ($beforeVersion == $afterVersion) {
				//can replace current xml file with new file?
				$xml = new jaXmlParser();
				$xml->loadFile($xmlinstall);
				$obj = $xml->toObject();
				
				if (isset($obj->extension)) {
					$parentNode = $obj->extension->children;
				} else {
					$parentNode = $obj->install->children;
				}
				
				if (isset($parentNode->version->value)) {
					$afterVersion = $parentNode->version->value;
				}
			}
			
			//must check action, because user can rollback to point with newer version
			$action = ($jauc->isNewerVersion($afterVersion, $beforeVersion, false) ? 'upgrade' : 'rollback');
			
			

			if ($action == 'upgrade') {
				$this->_applyDbUpgrade($src, $beforeVersion, $afterVersion);
			} elseif ($action == 'rollback') {
				$this->_applyDbDowngrade($src, $beforeVersion, $afterVersion, $aVersions);
			}
		}
	
	}


	function _applyFileRemoved($objectFilter, $applyLocation)
	{
		//remove file base on $objectFilter
		//important note: do not remove sql files (for rollback db)
		$FileSystemHelper = new FileSystemHelper();
		if (count($objectFilter) > 0) {
			foreach ($objectFilter as $entry => $status) {
				$element = $FileSystemHelper->clean($applyLocation.'/'.$entry);
				if (is_object($status)) {
					//is folder? => remove recusive
					$this->_applyFileRemoved($objectFilter->$entry, $element);
				} else {
					if ($status == 'removed' && $FileSystemHelper->getExt($entry) != 'sql') {
						$FileSystemHelper->rm($element);
					}
				}
			}
		}
	}


	function _applyDbUpgrade($src, $oldVersion, $newVersion)
	{
		global $jauc;
		$config = $this->config;
		$aVersions = $this->_parseListVersions();
		//sort for ascending version; default is descending
		$aVersions = array_reverse($aVersions, true);
		
		$doImport = false;
		foreach ($aVersions as $version => $versionInfo) {
			if ($jauc->isNewerVersion($version, $oldVersion, true)) {
				$doImport = true;
			}
			if ($doImport) {
				if (isset($versionInfo["upgrade"])) {
					$this->_importDbScript($versionInfo["upgrade"]);
				}
			}
			if ($jauc->isNewerVersion($version, $newVersion, true)) {
				break;
			}
		}
	}


	function _applyDbDowngrade($src, $newVersion, $oldVersion, $aVersions)
	{
		global $jauc;
		
		$doImport = false;
		foreach ($aVersions as $version => $versionInfo) {
			if ($jauc->isNewerVersion($newVersion, $version, true)) {
				$doImport = true;
			}
			if ($doImport) {
				if (isset($versionInfo["rollback"])) {
					$this->_importDbScript($versionInfo["rollback"]);
				}
			}
			if ($jauc->isNewerVersion($oldVersion, $version, true)) {
				break;
			}
		}
		
		//rollback db
		$backupFile = $src . "db/backup.sql";
		if (!JFile::exists($backupFile)) {
			$backupFile = $src . "backup.sql";
		}
		if (JFile::exists($backupFile)) {
			$this->_importDbScript($backupFile);
		}
	}


	function _importDbScript($file)
	{
		$config = $this->config;
		$FileSystemHelper = new FileSystemHelper();
		$file = $FileSystemHelper->clean($file);
		if (!JFile::exists($file)) {
			return false;
		}
		$ext = strtolower(substr($file, strrpos($file, '.') + 1));
		if ($ext == 'sql') {
			$oDb = new jaMysqlHelper($config->get("MYSQL_HOST"), $config->get("MYSQL_USER"), $config->get("MYSQL_PASS"), $config->get("MYSQL_DB"), $config->get("MYSQL_DB_PREFIX"), $config->get("MYSQL_PATH"), $config->get("MYSQLDUMP_PATH"));
			$oDb->restore($file);
		} elseif ($ext == 'php') {
			include ($file);
		}
	
	}


	/**
	 * Method to parse through a languages element of the installation manifest and take appropriate
	 * action.
	 *
	 * @access	public
	 * @param	object	$element 	The xml node to process
	 * @param	int		$cid		Application ID of application to install to
	 * @return	boolean	True on success
	 * @since	1.5
	 */
	function parseLanguages($pathSrc, $element, $cid = 0)
	{
		// TODO: work out why the below line triggers 'node no longer exists' errors with files
		if (!$element || !count($element->children())) {
			// Either the tag does not exist or has no children therefore we return zero files processed.
			return 0;
		}
		
		// Initialise variables.
		$copyfiles = array();
		
		// Get the client info
		jimport('joomla.application.helper');
		$client = JApplicationHelper::getClientInfo($cid);
		
		/*
		 * Here we set the folder we are going to copy the files to.
		 *
		 * 'languages' Files are copied to JPATH_BASE/language/ folder
		 */
		$destination = $client->path.'/language';
		
		/*
		 * Here we set the folder we are going to copy the files from.
		 *
		 * Does the element have a folder attribute?
		 *
		 * If so this indicates that the files are in a subdirectory of the source
		 * folder and we should append the folder attribute to the source path when
		 * copying files.
		 */
		$folder = (string) $element->attributes()->folder;
		if ($folder && JFolder::exists($pathSrc.'/'.$folder)) {
			$source = $pathSrc.'/'.$folder;
		} else {
			$source = $pathSrc;
		}
		
		// Process each file in the $files array (children of $tagName).
		foreach ($element->children() as $file) {
			/*
			 * Language files go in a subfolder based on the language code, ie.
			 *
			 * 		<language tag="en-US">en-US.mycomponent.ini</language>
			 *
			 * would go in the en-US subdirectory of the language folder.
			 *
			 * We will only install language files where a core language pack
			 * already exists.
			 */
			if ((string) $file->attributes()->tag != '') {
				$path['src'] = $source.'/'.$file;
				if ((string) $file->attributes()->client != '') {
					// override the client
					$langclient = JApplicationHelper::getClientInfo((string) $file->attributes()->client, true);
					$path['dest'] = $langclient->path.'/language/'.$file->attributes()->tag.'/'.basename((string) $file);
				} else {
					// use the default client
					$path['dest'] = $destination.'/'.$file->attributes()->tag.'/'.basename((string) $file);
				}
				
				// If the language folder is not present, then the core pack hasn't been installed... ignore
				if (!JFolder::exists(dirname($path['dest']))) {
					continue;
				}
			} else {
				$path['src'] = $source.'/'.$file;
				$path['dest'] = $destination.'/'.$file;
			}
			
			/*
			 * Before we can add a file to the copyfiles array we need to ensure
			 * that the folder we are copying our file to exits and if it doesn't,
			 * we need to create it.
			 */
			if (basename($path['dest']) != $path['dest']) {
				$newdir = dirname($path['dest']);
				
				if (!JFolder::create($newdir)) {
					JError::raiseWarning(1, JText::sprintf('JLIB_INSTALLER_ERROR_CREATE_DIRECTORY', $newdir));
					return false;
				}
			}
			
			// Add the file to the copyfiles array
			$copyfiles[] = $path;
		}
		
		$result = $this->copyFiles($copyfiles, true);
		return $result;
	}


	/**
	 * Copy files from source directory to the target directory
	 *
	 * @access	public
	 * @param	array $files array with filenames
	 * @param	boolean $overwrite True if existing files can be replaced
	 * @return	boolean True on success
	 * @since	1.5
	 */
	function copyFiles($files, $overwrite = null)
	{
		/*
		 * To allow for manual override on the overwriting flag, we check to see if
		 * the $overwrite flag was set and is a boolean value.  If not, use the object
		 * allowOverwrite flag.
		 */
		if (is_null($overwrite) || !is_bool($overwrite)) {
			$overwrite = true;
		}
		
		/*
		 * $files must be an array of filenames.  Verify that it is an array with
		 * at least one file to copy.
		 */
		if (is_array($files) && count($files) > 0) {
			foreach ($files as $file) {
				// Get the source and destination paths
				$filesource = JPath::clean($file['src']);
				$filedest = JPath::clean($file['dest']);
				$filetype = array_key_exists('type', $file) ? $file['type'] : 'file';
				
				if (!file_exists($filesource)) {
					/*
					 * The source file does not exist.  Nothing to copy so set an error
					 * and return false.
					 */
					JError::raiseWarning(1, 'JInstaller::install: ' . JText::sprintf('File does not exist', $filesource));
					return false;
				} elseif (file_exists($filedest) && !$overwrite) {
					return true;
				} else {
					
					// Copy the folder or file to the new location.
					if ($filetype == 'folder') {
						
						if (!(JFolder::copy($filesource, $filedest, null, $overwrite))) {
							JError::raiseWarning(1, 'JInstaller::install: ' . JText::sprintf('Failed to copy folder to', $filesource, $filedest));
							return false;
						}
						
						$step = array('type' => 'folder', 'path' => $filedest);
					} else {
						
						if (!(JFile::copy($filesource, $filedest))) {
							JError::raiseWarning(1, 'JInstaller::install: ' . JText::sprintf('Failed to copy file to', $filesource, $filedest));
							return false;
						}
						
						$step = array('type' => 'file', 'path' => $filedest);
					}
					
				/*
					 * Since we copied a file/folder, we want to add it to the installation step stack so that
					 * in case we have to roll back the installation we can remove the files copied.
					 */
				//$this->_stepStack[] = $step;
				}
			}
		} else {
			
			/*
			 * The $files variable was either not an array or an empty array
			 */
			return false;
		}
		return count($files);
	}


	function doBackupConflictedFiles($upgradeVersion, $folder)
	{
		global $jauc;
		$FileSystemHelper = new FileSystemHelper();
		$backupDir = $jauc->getLocalConflictPath($this->getInfo(), $folder);
		$upgradeInfo = $jauc->buildDiff($this->getFullInfo(), $upgradeVersion);
		if ($backupDir !== false && $upgradeInfo !== false) {
			$conflicted = $this->_doBackupConflictedFiles($backupDir, "", $upgradeInfo);
			if (!$conflicted) {
				//dont have any conflicted files
				$FileSystemHelper->rm($backupDir, true);
				return false;
			} else {
				return $folder;
			}
		}
		return false;
	}


	function _doBackupConflictedFiles($path, $relativePath, $data)
	{
		$conflicted = false;
		$FileSystemHelper = new FileSystemHelper();
		foreach ($data as $k => $item) {
			if (is_object($item)) {
				$subPath = $path . $k.'/';
				$relativeSubPath = $relativePath . $k . "/";
				$FileSystemHelper->createDirRecursive($subPath, 0755);
				
				$subConflicted = $this->_doBackupConflictedFiles($subPath, $relativeSubPath, $item);
				if ($subConflicted) {
					$conflicted = true;
				}
			} else {
				if ($item == 'bmodified') {
					//the files which is modified by both user and developer
					//is conflicted file
					$conflicted = true;
					$destPath = $path . $k;
					$relativeFile = $relativePath . $k;
					$srcPath = $this->getFilePath($relativeFile);
					$FileSystemHelper->cp($srcPath, $destPath);
				}
			}
		}
		return $conflicted;
	}


	function doBackup()
	{
		$config = $this->config;
		$FileSystemHelper = new FileSystemHelper();
		$workingDir = $FileSystemHelper->tmpDir(null, 'ja', 0755);
		$workingDir .= $this->extKey.'/';
		if (JFolder::create($workingDir, 0755) === false) {
			return false;
		}
		$backupDir = $this->getBackupPath();
		if ($backupDir === false) {
			return false;
		}
		
		$locations = $this->getLocation();
		$cnt = count($locations);
		foreach ($locations as $name => $path) {
			if ($name != 'location')
				$FileSystemHelper->cp($path, $workingDir . $name, true, 0755);
			else
				$FileSystemHelper->cp($path, $workingDir, true, 0755);
		}
		
		$this->_backupLanguages($workingDir);
		$this->_backupDatabase($workingDir);
		//save all to backup file
		$createDate = date("Y-m-d H:i:s");
		$fileName = $this->extKey . "_" . date("dMY_His", strtotime($createDate));
		
		$fileNameBak = $fileName . ".zip";
		$fileBak = $backupDir . $fileNameBak;
		ArchiveHelper::zip($fileBak, $workingDir, true);
		
		$comment = (string) (isset($this->message) ? $this->message : "");
		$info = "extKey={$this->extKey}" . "\r\n";
		$info .= "version={$this->version}" . "\r\n";
		$info .= "createDate={$createDate}" . "\r\n";
		$info .= "comment={$comment}" . "\r\n";
		
		$fileInfo = $backupDir . $fileName . ".txt";
		JFile::write($fileInfo, $info);
		
		return $fileNameBak;
	}


	function _backupLanguages($workingDir)
	{
		jimport('joomla.application.helper');
		$languageBak = 'en-GB';
		$clientSite = JApplicationHelper::getClientInfo(0);
		$clientAdmin = JApplicationHelper::getClientInfo(1);
		
		//get language files filter pattern
		$prefix = '';
		switch ($this->type) {
			case 'component':
				$prefix = 'com_';
				break;
			case 'template':
				$prefix = 'tpl_';
				break;
			case 'plugin':
				$prefix = 'plg_';
				break;
			case 'module':
				$prefix = 'mod_';
				break;
		}
		
		$name = $this->extKey;
		if (strpos($name, $prefix) !== 0) {
			$name = $prefix . $name;
		}
		
		if ($this->type == 'plugin') {
			$name = "plg_{$this->folder}_{$name}";
		}
		
		$languageFile = $languageBak . '.' . $name . '.ini'; //Eg: en-GB.plg_search_newsfeeds.ini
		

		//backup front-end language files
		$srcFile = $clientSite->path.'/language/'.$languageBak.'/'.$languageFile;
		if (JFile::exists($srcFile)) {
			$dstFolder = $workingDir . "lang/site/";
			$dstFile = $dstFolder . $languageFile;
			if (JFolder::create($dstFolder, 0755) !== false) {
				JFile::copy($srcFile, $dstFile);
			}
		}
		//backup back-end language files
		$srcFile = $clientAdmin->path.'/language/'.$languageBak.'/'.$languageFile;
		if (JFile::exists($srcFile)) {
			$dstFolder = $workingDir . "lang/admin/";
			$dstFile = $dstFolder . $languageFile;
			if (JFolder::create($dstFolder, 0755) !== false) {
				JFile::copy($srcFile, $dstFile);
			}
		}
		return true;
	}


	function _backupDatabase($workingDir)
	{
		$config = $this->config;
		
		if ($this->type == 'component') {
			if (JFolder::create($workingDir . "db", 0755) !== false) {
				$workingDir .= "db/";
			}
			
			$tables = $this->_parseListTables();
			if (is_array($tables) && count($tables) > 0) {
				//backup database
				$oBak = new jaMysqlHelper($config->get("MYSQL_HOST"), $config->get("MYSQL_USER"), $config->get("MYSQL_PASS"), $config->get("MYSQL_DB"), $config->get("MYSQL_DB_PREFIX"), $config->get("MYSQL_PATH"), $config->get("MYSQLDUMP_PATH"));
				
				$oBak->dump($workingDir . "backup.sql", $tables);
			}
		}
	}


	/**
	 * get list versions of product from xml config file
	 *
	 */
	function _parseListVersions($xmlFile = false)
	{
		$arrVer = array();
		$FileSystemHelper = new FileSystemHelper();
		if ($xmlFile !== false) {
			$configFile = $xmlFile;
		} else {
			$configFile = $this->configFile;
		}
		if (!file_exists($configFile))
			return false;
		
		$configFile;
		$xml = new jaXmlParser();
		$xml->loadFile($configFile);
		$obj = $xml->toObject();
		
		if (isset($obj->extension)) {
			$parentNode = $obj->extension->children;
		} elseif (isset($obj->install)) {
			$parentNode = $obj->install->children;
		} else {
			return $arrVer;
		}
		
		if (!isset($parentNode->jaupdater)) {
			return $arrVer;
		}
		$jaInfo = $parentNode->jaupdater->children;
		if (!isset($jaInfo->versions) || !isset($jaInfo->versions->children->version)) {
			return $arrVer;
		}
		$versions = $jaInfo->versions;
		if (!isset($versions->children->version)) {
			return $arrVer;
		}
		$listVersions = $versions->children->version;
		
		$side = (isset($versions->attributes) && isset($versions->attributes->folder)) ? $versions->attributes->folder : '';
		$path = $side == 'site' ? '' : 'administrator/';
		$path = $this->getRepoPath() . $path . "components/".$this->extKey.'/';
		
		$listVer = array();
		if (!is_array($listVersions)) {
			//only one version
			$listVer[] = $listVersions;
		} else {
			$listVer = $listVersions;
		}
		
		foreach ($listVer as $ver) {
			$id = $ver->attributes->version;
			$arrVer[$id] = array();
			$arrVer[$id]['version_name'] = $id;
			
			if (isset($ver->children->upgrade)) {
				$arrVer[$id]['upgrade'] = $FileSystemHelper->clean($path . $ver->children->upgrade->value);
			}
			if (isset($ver->children->rollback)) {
				$arrVer[$id]['rollback'] = $FileSystemHelper->clean($path . $ver->children->rollback->value);
			}
			if (isset($ver->children->changelogUrl)) {
				$arrVer[$id]['changelogUrl'] = $ver->children->changelogUrl->value;
			}
		}
		return $arrVer;
	}


	/**
	 * get list tables of product from xml config file
	 *
	 */
	function _parseListTables()
	{
		$config = $this->config;
		
		$arrTable = array();
		if (!file_exists($this->configFile))
			return false;
		
		$xml = new jaXmlParser();
		$xml->loadFile($this->configFile);
		$obj = $xml->toObject();
		
		if (isset($obj->extension)) {
			$parentNode = $obj->extension->children;
		} elseif (isset($obj->install)) {
			$parentNode = $obj->install->children;
		} else {
			return $arrTable;
		}
		
		if (!isset($parentNode->jaupdater)) {
			return $arrTable;
		}
		$jaInfo = $parentNode->jaupdater->children;
		if (!isset($jaInfo->tables) || !isset($jaInfo->tables->children->table)) {
			return $arrTable;
		}
		$tables = $jaInfo->tables->children->table;
		
		$listTables = array();
		if (!is_array($tables)) {
			//only one version
			$listTables[] = $tables;
		} else {
			$listTables = $tables;
		}
		foreach ($listTables as $table) {
			$arrTable[] = str_replace('#__', $config->get("MYSQL_DB_PREFIX"), $table->value);
		}
		
		return $arrTable;
	}


	/**
	 * path to current product' version
	 *
	 * @param unknown_type $product
	 * @return unknown
	 */
	function getLocation()
	{
		$path = $this->getRepoPath();
		$location = array();
		
		switch ($this->type) {
			case 'component':
				$pathAdmin = $path . "administrator/components/".$this->extKey.'/';
				if (JFolder::exists($pathAdmin)) {
					$location['admin'] = $pathAdmin;
				}
				$pathSite = $path . "components/".$this->extKey.'/';
				if (JFolder::exists($pathSite)) {
					$location['site'] = $pathSite;
				}
				$fileConfig = basename($this->configFile);
				$location[$fileConfig] = $this->configFile;
				break;
			case 'module':
				if (isset($this->client_id) && $this->client_id) {
					$path .= "administrator/";
				}
				$location['location'] = $path . "modules/".$this->extKey.'/';
				break;
			case 'plugin':
				//new stuture for plugins folder from 1.6
				//each plugin will be stored at individual folder
				$basePath = $path . "plugins/".$this->folder.'/'.$this->extKey.'/';
				$location['location'] = $basePath;
				
				break;
			case 'template':
				$location['location'] = $path . "templates/".$this->extKey.'/';
				break;
			default:
				//not match any type
				return false;
				break;
		}
		
		
		if (count($location) > 0) {
			return $location;
		}
		return false;
	}


	/**
	 * get path to specific file of extensions
	 *
	 */
	function getFilePath($file)
	{
		$location = $this->getLocation();
		$FileSystemHelper = new FileSystemHelper();
		if ($location === false) {
			return false;
		}
		if ($this->type == 'component') {
			if (substr($file, 0, strlen('site')) == 'site') {
				//file on front-end
				if (isset($location['site'])) {
					$file = preg_replace("/^site\//", "", $file);
					$file = $location['site'] . $file;
				}
			} else {
				//file on back-end
				if (isset($location['admin'])) {
					$file = preg_replace("/^admin\//", "", $file);
					$file = $location['admin'] . $file;
				}
			}
		} else {
			foreach ($location as $path) {
				if (JFile::exists($path)) {
					if (basename($path) == basename($file)) {
						$file = $path;
						break;
					}
				} else {
					$fileTmp = $FileSystemHelper->clean($path . $file);
					if (JFile::exists($fileTmp)) {
						$file = $fileTmp;
						break;
					} else {
						//exception case (with plugin)
						$path2 = dirname($path).'/';
						$fileTmp2 = $FileSystemHelper->clean($path2 . $file);
						if (JFile::exists($fileTmp2)) {
							$file = $fileTmp2;
							break;
						}
					}
				}
			}
		}
		return $FileSystemHelper->clean($file);
	}


	/**
	 *  Use to check $entry matches any pattern in $patterns
	 *
	 * @param $str
	 *
	 * @return  boolean true if found matches pattern
	 */
	function isIgnore($str)
	{
		foreach ($this->ignores as $key => $pattern) {
			// Regex format
			if (!preg_match("/^\/[^\/]+\/\w+?$/", $pattern)) {
				$pattern = "/$pattern/";
			}
			if (preg_match($pattern, $str) > 0) {
				return true;
			}
		}
		return false;
	}


	/**
	 * Compare 2 InfoObject
	 *
	 * @return  boolean true if exactly matches name & version
	 */
	function compareTo($infoObject)
	{
		$retVal = false;
		if (!empty($infoObject)) {
			if ($this->version == $infoObject->version && $this->extKey == $infoObject->extKey) {
				$retVal = true;
			}
		}
		return $retVal;
	}


	/**
	 *
	 * @param $data JSON object
	 */
	function loadData($data)
	{
		if (!empty($data)) {
			$this->type = $data->type;
			$this->name = $data->name;
			$this->extKey = $data->extKey;
			$this->version = $data->version;
			$this->crc = $data->crc;
		}
	}


	/**
	 *
	 * @return string
	 */
	function toString()
	{
		return "name: $this->name - Version: $this->version";
	}
}