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<?php
/**
 * Joomla! Content Management System
 *
 * @copyright  (C) 2008 Open Source Matters, Inc. <https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\CMS\Installer\Adapter;

\defined('JPATH_PLATFORM') or die;

use Joomla\CMS\Filesystem\File;
use Joomla\CMS\Filesystem\Folder;
use Joomla\CMS\Filesystem\Path;
use Joomla\CMS\Installer\Installer;
use Joomla\CMS\Installer\InstallerAdapter;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Log\Log;
use Joomla\CMS\Table\Table;
use Joomla\Database\ParameterType;

/**
 * File installer
 *
 * @since  3.1
 */
class FileAdapter extends InstallerAdapter
{
	/**
	 * `<scriptfile>` element of the extension manifest
	 *
	 * @var    object
	 * @since  3.1
	 */
	protected $scriptElement = null;

/**
	 * Flag if the adapter supports discover installs
	 *
	 * Adapters should override this and set to false if discover install is unsupported
	 *
	 * @var    boolean
	 * @since  3.4
	 */
	protected $supportsDiscoverInstall = false;

/**
	 * Method to copy the extension's base files from the `<files>` tag(s) and the manifest file
	 *
	 * @return  void
	 *
	 * @since   3.4
	 * @throws  \RuntimeException
	 */
	protected function copyBaseFiles()
	{
		// Populate File and Folder List to copy
		$this->populateFilesAndFolderList();

// Now that we have folder list, lets start creating them
		foreach ($this->folderList as $folder)
		{
			if (!Folder::exists($folder))
			{
				if (!$created = Folder::create($folder))
				{
					throw new \RuntimeException(
						Text::sprintf('JLIB_INSTALLER_ABORT_FILE_INSTALL_FAIL_SOURCE_DIRECTORY', $folder)
					);
				}

// Since we created a directory and will want to remove it if we have to roll back.
				// The installation due to some errors, let's add it to the installation step stack.
				if ($created)
				{
					$this->parent->pushStep(array('type' => 'folder', 'path' => $folder));
				}
			}
		}

// Now that we have file list, let's start copying them
		$this->parent->copyFiles($this->fileList);
	}

/**
	 * Method to finalise the installation processing
	 *
	 * @return  void
	 *
	 * @since   3.4
	 * @throws  \RuntimeException
	 */
	protected function finaliseInstall()
	{
		// Clobber any possible pending updates
		$update = Table::getInstance('update');

$uid = $update->find(
			array(
				'element' => $this->element,
				'type' => $this->type,
			)
		);

if ($uid)
		{
			$update->delete($uid);
		}

// Lastly, we will copy the manifest file to its appropriate place.
		$manifest = array();
		$manifest['src'] = $this->parent->getPath('manifest');
		$manifest['dest'] = JPATH_MANIFESTS . '/files/' . basename($this->parent->getPath('manifest'));

if (!$this->parent->copyFiles(array($manifest), true))
		{
			// Install failed, rollback changes
			throw new \RuntimeException(
				Text::sprintf(
					'JLIB_INSTALLER_ABORT_COPY_SETUP',
					Text::_('JLIB_INSTALLER_' . strtoupper($this->route))
				)
			);
		}

// If there is a manifest script, let's copy it.
		if ($this->manifest_script)
		{
			// First, we have to create a folder for the script if one isn't present
			if (!file_exists($this->parent->getPath('extension_root')))
			{
				Folder::create($this->parent->getPath('extension_root'));
			}

$path['src'] = $this->parent->getPath('source') . '/' . $this->manifest_script;
			$path['dest'] = $this->parent->getPath('extension_root') . '/' . $this->manifest_script;

if ($this->parent->isOverwrite() || !file_exists($path['dest']))
			{
				if (!$this->parent->copyFiles(array($path)))
				{
					// Install failed, rollback changes
					throw new \RuntimeException(
						Text::sprintf(
							'JLIB_INSTALLER_ABORT_MANIFEST',
							Text::_('JLIB_INSTALLER_' . strtoupper($this->route))
						)
					);
				}
			}
		}
	}

/**
	 * Method to finalise the uninstallation processing
	 *
	 * @return  boolean
	 *
	 * @since   4.0.0
	 * @throws  \RuntimeException
	 */
	protected function finaliseUninstall(): bool
	{
		File::delete(JPATH_MANIFESTS . '/files/' . $this->extension->element . '.xml');

$extensionId = $this->extension->extension_id;

$db = $this->parent->getDbo();

// Remove the schema version
		$query = $db->getQuery(true)
			->delete('#__schemas')
			->where('extension_id = :extension_id')
			->bind(':extension_id', $extensionId, ParameterType::INTEGER);
		$db->setQuery($query);
		$db->execute();

// Clobber any possible pending updates
		$update = Table::getInstance('update');
		$uid    = $update->find(
			[
				'element' => $this->extension->element,
				'type'    => $this->type,
			]
		);

if ($uid)
		{
			$update->delete($uid);
		}

$this->extension->delete();

return true;
	}

/**
	 * Get the filtered extension element from the manifest
	 *
	 * @param   string  $element  Optional element name to be converted
	 *
	 * @return  string  The filtered element
	 *
	 * @since   3.4
	 */
	public function getElement($element = null)
	{
		if (!$element)
		{
			$manifestPath = Path::clean($this->parent->getPath('manifest'));
			$element = preg_replace('/\.xml/', '', basename($manifestPath));
		}

return $element;
	}

/**
	 * Custom loadLanguage method
	 *
	 * @param   string  $path  The path on which to find language files.
	 *
	 * @return  void
	 *
	 * @since   3.1
	 */
	public function loadLanguage($path)
	{
		$extension = 'files_' . strtolower(str_replace('files_', '', $this->getElement()));

$this->doLoadLanguage($extension, $path, JPATH_SITE);
	}

/**
	 * Method to parse optional tags in the manifest
	 *
	 * @return  void
	 *
	 * @since   3.4
	 */
	protected function parseOptionalTags()
	{
		// Parse optional tags
		$this->parent->parseLanguages($this->getManifest()->languages);
	}

/**
	 * Removes this extension's files
	 *
	 * @return  void
	 *
	 * @since   4.0.0
	 * @throws  \RuntimeException
	 */
	protected function removeExtensionFiles()
	{
		// Loop through all elements and get list of files and folders
		foreach ($this->getManifest()->fileset->files as $eFiles)
		{
			$target = (string) $eFiles->attributes()->target;

// Create folder path
			if (empty($target))
			{
				$targetFolder = JPATH_ROOT;
			}
			else
			{
				$targetFolder = JPATH_ROOT . '/' . $target;
			}

$folderList = [];

// Check if all children exists
			if (\count($eFiles->children()) > 0)
			{
				// Loop through all filenames elements
				foreach ($eFiles->children() as $eFileName)
				{
					if ($eFileName->getName() === 'folder')
					{
						$folderList[] = $targetFolder . '/' . $eFileName;
					}
					else
					{
						$fileName = $targetFolder . '/' . $eFileName;
						File::delete($fileName);
					}
				}
			}

// Delete any folders that don't have any content in them.
			foreach ($folderList as $folder)
			{
				$files = Folder::files($folder);

if ($files !== false && !\count($files))
				{
					Folder::delete($folder);
				}
			}
		}

// Lastly, remove the extension_root
		$folder = $this->parent->getPath('extension_root');

if (Folder::exists($folder))
		{
			Folder::delete($folder);
		}

$this->parent->removeFiles($this->getManifest()->languages);
	}

/**
	 * Method to do any prechecks and setup the install paths for the extension
	 *
	 * @return  void
	 *
	 * @since   3.4
	 */
	protected function setupInstallPaths()
	{
		// Set the file root path
		if ($this->name === 'files_joomla')
		{
			// If we are updating the Joomla core, set the root path to the root of Joomla
			$this->parent->setPath('extension_root', JPATH_ROOT);
		}
		else
		{
			$this->parent->setPath('extension_root', JPATH_MANIFESTS . '/files/' . $this->element);
		}
	}

/**
	 * Method to do any prechecks and setup the uninstall job
	 *
	 * @return  void
	 *
	 * @since   4.0.0
	 */
	protected function setupUninstall()
	{
		$manifestFile = JPATH_MANIFESTS . '/files/' . $this->extension->element . '.xml';

// Because libraries may not have their own folders we cannot use the standard method of finding an installation manifest
		if (!file_exists($manifestFile))
		{
			// Remove this row entry since its invalid
			$this->extension->delete($this->extension->extension_id);

throw new \RuntimeException(Text::_('JLIB_INSTALLER_ERROR_FILE_UNINSTALL_INVALID_NOTFOUND_MANIFEST'));
		}

// Set the files root path
		$this->parent->setPath('extension_root', JPATH_MANIFESTS . '/files/' . $this->extension->element);

// Set the source path for compatibility with the API
		$this->parent->setPath('source', $this->parent->getPath('extension_root'));

$xml = simplexml_load_file($manifestFile);

// If we cannot load the XML file return null
		if (!$xml)
		{
			throw new \RuntimeException(Text::_('JLIB_INSTALLER_ERROR_FILE_UNINSTALL_LOAD_MANIFEST'));
		}

// Check for a valid XML root tag.
		if ($xml->getName() !== 'extension')
		{
			throw new \RuntimeException(Text::_('JLIB_INSTALLER_ERROR_FILE_UNINSTALL_INVALID_MANIFEST'));
		}

$this->setManifest($xml);

// Attempt to load the language file; might have uninstall strings
		$this->loadLanguage(JPATH_MANIFESTS . '/files');
	}

/**
	 * Method to store the extension to the database
	 *
	 * @return  void
	 *
	 * @since   3.4
	 * @throws  \RuntimeException
	 */
	protected function storeExtension()
	{
		if ($this->currentExtensionId)
		{
			// Load the entry and update the manifest_cache
			$this->extension->load($this->currentExtensionId);

// Update name
			$this->extension->name = $this->name;

// Update manifest
			$this->extension->manifest_cache = $this->parent->generateManifestCache();

if (!$this->extension->store())
			{
				// Install failed, roll back changes
				throw new \RuntimeException(
					Text::sprintf(
						'JLIB_INSTALLER_ABORT_ROLLBACK',
						Text::_('JLIB_INSTALLER_' . strtoupper($this->route)),
						$this->extension->getError()
					)
				);
			}
		}
		else
		{
			// Add an entry to the extension table with a whole heap of defaults
			$this->extension->name         = $this->name;
			$this->extension->type         = 'file';
			$this->extension->element      = $this->element;
			$this->extension->changelogurl = $this->changelogurl;

// There is no folder for files so leave it blank
			$this->extension->folder    = '';
			$this->extension->enabled   = 1;
			$this->extension->protected = 0;
			$this->extension->access    = 0;
			$this->extension->client_id = 0;
			$this->extension->params    = '';

// Update the manifest cache for the entry
			$this->extension->manifest_cache = $this->parent->generateManifestCache();

// Since we have created a module item, we add it to the installation step stack
			// so that if we have to rollback the changes we can undo it.
			$this->parent->pushStep(array('type' => 'extension', 'extension_id' => $this->extension->extension_id));
		}
	}

/**
	 * Function used to check if extension is already installed
	 *
	 * @param   string  $extension  The element name of the extension to install
	 *
	 * @return  boolean  True if extension exists
	 *
	 * @since   3.1
	 */
	protected function extensionExistsInSystem($extension = null)
	{
		// Get a database connector object
		$db = $this->parent->getDbo();

$query = $db->getQuery(true)
			->select($db->quoteName('extension_id'))
			->from($db->quoteName('#__extensions'))
			->where($db->quoteName('type') . ' = ' . $db->quote('file'))
			->where($db->quoteName('element') . ' = :extension')
			->bind(':extension', $extension);
		$db->setQuery($query);

try
		{
			$db->execute();
		}
		catch (\RuntimeException $e)
		{
			// Install failed, rollback changes - error logged by the installer
			return false;
		}

$id = $db->loadResult();

if (empty($id))
		{
			return false;
		}

return true;
	}

/**
	 * Function used to populate files and folder list
	 *
	 * @return  boolean  none
	 *
	 * @since   3.1
	 */
	protected function populateFilesAndFolderList()
	{
		// Initialise variable
		$this->folderList = array();
		$this->fileList = array();

// Set root folder names
		$packagePath = $this->parent->getPath('source');
		$jRootPath = Path::clean(JPATH_ROOT);

// Loop through all elements and get list of files and folders
		foreach ($this->getManifest()->fileset->files as $eFiles)
		{
			// Check if the element is files element
			$folder = (string) $eFiles->attributes()->folder;
			$target = (string) $eFiles->attributes()->target;

// Split folder names into array to get folder names. This will help in creating folders
			$arrList = preg_split("#/|\\/#", $target);

$folderName = $jRootPath;

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

$folderName .= '/' . $dir;

// Check if folder exists, if not then add to the array for folder creation
				if (!Folder::exists($folderName))
				{
					$this->folderList[] = $folderName;
				}
			}

// Create folder path
			$sourceFolder = empty($folder) ? $packagePath : $packagePath . '/' . $folder;
			$targetFolder = empty($target) ? $jRootPath : $jRootPath . '/' . $target;

// Check if source folder exists
			if (!Folder::exists($sourceFolder))
			{
				Log::add(Text::sprintf('JLIB_INSTALLER_ABORT_FILE_INSTALL_FAIL_SOURCE_DIRECTORY', $sourceFolder), Log::WARNING, 'jerror');

// If installation fails, rollback
				$this->parent->abort();

return false;
			}

// Check if all children exists
			if (\count($eFiles->children()))
			{
				// Loop through all filenames elements
				foreach ($eFiles->children() as $eFileName)
				{
					$path['src'] = $sourceFolder . '/' . $eFileName;
					$path['dest'] = $targetFolder . '/' . $eFileName;
					$path['type'] = 'file';

if ($eFileName->getName() === 'folder')
					{
						$folderName         = $targetFolder . '/' . $eFileName;
						$this->folderList[] = $folderName;
						$path['type']       = 'folder';
					}

$this->fileList[] = $path;
				}
			}
			else
			{
				$files = Folder::files($sourceFolder);

foreach ($files as $file)
				{
					$path['src'] = $sourceFolder . '/' . $file;
					$path['dest'] = $targetFolder . '/' . $file;

$this->fileList[] = $path;
				}
			}
		}
	}

/**
	 * Refreshes the extension table cache
	 *
	 * @return  boolean result of operation, true if updated, false on failure
	 *
	 * @since   3.1
	 */
	public function refreshManifestCache()
	{
		// Need to find to find where the XML file is since we don't store this normally
		$manifestPath = JPATH_MANIFESTS . '/files/' . $this->parent->extension->element . '.xml';
		$this->parent->manifest = $this->parent->isManifest($manifestPath);
		$this->parent->setPath('manifest', $manifestPath);

$manifest_details = Installer::parseXMLInstallFile($this->parent->getPath('manifest'));
		$this->parent->extension->manifest_cache = json_encode($manifest_details);
		$this->parent->extension->name = $manifest_details['name'];

try
		{
			return $this->parent->extension->store();
		}
		catch (\RuntimeException $e)
		{
			Log::add(Text::_('JLIB_INSTALLER_ERROR_PACK_REFRESH_MANIFEST_CACHE'), Log::WARNING, 'jerror');

return false;
		}
	}
}

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ComponentAdapter.php	42.15 KB	lrw-r--r--	2021-08-23 19:07:08	Edit Download recursive recursive
FileAdapter.php	14.99 KB	lrw-r--r--	2021-08-23 19:07:08	Edit Download recursive recursive
LanguageAdapter.php	25.65 KB	lrw-r--r--	2021-08-23 19:07:08	Edit Download recursive recursive
LibraryAdapter.php	13.87 KB	lrw-r--r--	2021-08-23 19:07:08	Edit Download recursive recursive
ModuleAdapter.php	19.13 KB	lrw-r--r--	2021-08-23 19:07:08	Edit Download recursive recursive
PackageAdapter.php	19.16 KB	lrw-r--r--	2021-08-23 19:07:08	Edit Download recursive recursive
PluginAdapter.php	16.52 KB	lrw-r--r--	2021-08-23 19:07:08	Edit Download recursive recursive
TemplateAdapter.php	17.93 KB	lrw-r--r--	2021-08-23 19:07:08	Edit Download recursive recursive