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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 = $this->parent->generateManifestCache();
if (!$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()
)
);
}
// 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;
}
}
}