<?php
/**
* Joomla! Content Management System
*
* @copyright Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved.
* @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\Application\ApplicationHelper;
use Joomla\CMS\Installer\Installer;
use Joomla\CMS\Installer\InstallerAdapter;
use Joomla\CMS\Table\Table;
use Joomla\CMS\Table\Update;
\JLoader::import('joomla.filesystem.folder');
/**
* Plugin installer
*
* @since 3.1
*/
class PluginAdapter extends InstallerAdapter
{
/**
* `<scriptfile>` element of the extension manifest
*
* @var object
* @since 3.1
*/
protected $scriptElement = null;
/**
* `<files>` element of the old extension manifest
*
* @var object
* @since 3.1
*/
protected $oldFiles = null;
/**
* Method to check if the extension is already present in the database
*
* @return void
*
* @since 3.4
* @throws \RuntimeException
*/
protected function checkExistingExtension()
{
try
{
$this->currentExtensionId = $this->extension->find(
array('type' => $this->type, 'element' => $this->element, 'folder' => $this->group)
);
}
catch (\RuntimeException $e)
{
// Install failed, roll back changes
throw new \RuntimeException(
\JText::sprintf(
'JLIB_INSTALLER_ABORT_ROLLBACK',
\JText::_('JLIB_INSTALLER_' . $this->route),
$e->getMessage()
),
$e->getCode(),
$e
);
}
}
/**
* Method to copy the extension's base files from the `<files>` tag(s) and the manifest file
*
* @return void
*
* @since 3.4
* @throws \RuntimeException
*/
protected function copyBaseFiles()
{
// Copy all necessary files
if ($this->parent->parseFiles($this->getManifest()->files, -1, $this->oldFiles) === false)
{
throw new \RuntimeException(
\JText::sprintf(
'JLIB_INSTALLER_ABORT_PLG_COPY_FILES',
\JText::_('JLIB_INSTALLER_' . $this->route)
)
);
}
// If there is a manifest script, let's copy it.
if ($this->manifest_script)
{
$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(
\JText::sprintf(
'JLIB_INSTALLER_ABORT_PLG_INSTALL_MANIFEST',
\JText::_('JLIB_INSTALLER_' . $this->route)
)
);
}
}
}
}
/**
* Method to create the extension root path if necessary
*
* @return void
*
* @since 3.4
* @throws \RuntimeException
*/
protected function createExtensionRoot()
{
// Run the common create code first
parent::createExtensionRoot();
// If we're updating at this point when there is always going to be an extension_root find the old XML files
if ($this->route === 'update')
{
// Create a new installer because findManifest sets stuff; side effects!
$tmpInstaller = new Installer;
// Look in the extension root
$tmpInstaller->setPath('source', $this->parent->getPath('extension_root'));
if ($tmpInstaller->findManifest())
{
$old_manifest = $tmpInstaller->getManifest();
$this->oldFiles = $old_manifest->files;
}
}
}
/**
* Method to finalise the installation processing
*
* @return void
*
* @since 3.4
* @throws \RuntimeException
*/
protected function finaliseInstall()
{
// Clobber any possible pending updates
/** @var Update $update */
$update = Table::getInstance('update');
$uid = $update->find(
array(
'element' => $this->element,
'type' => $this->type,
'folder' => $this->group,
)
);
if ($uid)
{
$update->delete($uid);
}
// Lastly, we will copy the manifest file to its appropriate place.
if ($this->route !== 'discover_install')
{
if (!$this->parent->copyManifest(-1))
{
// Install failed, rollback changes
throw new \RuntimeException(
\JText::sprintf(
'JLIB_INSTALLER_ABORT_PLG_INSTALL_COPY_SETUP',
\JText::_('JLIB_INSTALLER_' . $this->route)
)
);
}
}
}
/**
* 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 (!$element)
{
// Backward Compatibility
// @todo Deprecate in future version
if (count($this->getManifest()->files->children()))
{
$type = (string) $this->getManifest()->attributes()->type;
foreach ($this->getManifest()->files->children() as $file)
{
if ((string) $file->attributes()->$type)
{
$element = (string) $file->attributes()->$type;
break;
}
}
}
}
return $element;
}
/**
* Get the class name for the install adapter script.
*
* @return string The class name.
*
* @since 3.4
*/
protected function getScriptClassName()
{
return 'Plg' . str_replace('-', '', $this->group) . $this->element . 'InstallerScript';
}
/**
* Custom loadLanguage method
*
* @param string $path The path where to find language files.
*
* @return void
*
* @since 3.1
*/
public function loadLanguage($path = null)
{
$source = $this->parent->getPath('source');
if (!$source)
{
$this->parent->setPath(
'source',
JPATH_PLUGINS . '/' . $this->parent->extension->folder . '/' . $this->parent->extension->element
);
}
$element = $this->getManifest()->files;
if ($element)
{
$group = strtolower((string) $this->getManifest()->attributes()->group);
$name = '';
if (count($element->children()))
{
foreach ($element->children() as $file)
{
if ((string) $file->attributes()->plugin)
{
$name = strtolower((string) $file->attributes()->plugin);
break;
}
}
}
if ($name)
{
$extension = "plg_${group}_${name}";
$source = $path ?: JPATH_PLUGINS . "/$group/$name";
$folder = (string) $element->attributes()->folder;
if ($folder && file_exists("$path/$folder"))
{
$source = "$path/$folder";
}
$this->doLoadLanguage($extension, $source, JPATH_ADMINISTRATOR);
}
}
}
/**
* Method to parse optional tags in the manifest
*
* @return void
*
* @since 3.4
*/
protected function parseOptionalTags()
{
// Parse optional tags -- media and language files for plugins go in admin app
$this->parent->parseMedia($this->getManifest()->media, 1);
$this->parent->parseLanguages($this->getManifest()->languages, 1);
}
/**
* Prepares the adapter for a discover_install task
*
* @return void
*
* @since 3.4
*/
public function prepareDiscoverInstall()
{
$client = ApplicationHelper::getClientInfo($this->extension->client_id);
$basePath = $client->path . '/plugins/' . $this->extension->folder;
if (is_dir($basePath . '/' . $this->extension->element))
{
$manifestPath = $basePath . '/' . $this->extension->element . '/' . $this->extension->element . '.xml';
}
else
{
// @deprecated 4.0 - This path supports Joomla! 1.5 plugin folder layouts
$manifestPath = $basePath . '/' . $this->extension->element . '.xml';
}
$this->parent->manifest = $this->parent->isManifest($manifestPath);
$this->parent->setPath('manifest', $manifestPath);
$this->setManifest($this->parent->getManifest());
}
/**
* Method to do any prechecks and setup the install paths for the extension
*
* @return void
*
* @since 3.4
* @throws \RuntimeException
*/
protected function setupInstallPaths()
{
$this->group = (string) $this->getManifest()->attributes()->group;
if (empty($this->element) && empty($this->group))
{
throw new \RuntimeException(
\JText::sprintf(
'JLIB_INSTALLER_ABORT_PLG_INSTALL_NO_FILE',
\JText::_('JLIB_INSTALLER_' . $this->route)
)
);
}
$this->parent->setPath('extension_root', JPATH_PLUGINS . '/' . $this->group . '/' . $this->element);
}
/**
* Method to store the extension to the database
*
* @return void
*
* @since 3.4
* @throws \RuntimeException
*/
protected function storeExtension()
{
// Discover installs are stored a little differently
if ($this->route === 'discover_install')
{
$manifest_details = Installer::parseXMLInstallFile($this->parent->getPath('manifest'));
$this->extension->manifest_cache = json_encode($manifest_details);
$this->extension->state = 0;
$this->extension->name = $manifest_details['name'];
$this->extension->enabled = 'editors' === $this->extension->folder ? 1 : 0;
$this->extension->params = $this->parent->getParams();
if (!$this->extension->store())
{
// Install failed, roll back changes
throw new \RuntimeException(\JText::_('JLIB_INSTALLER_ERROR_PLG_DISCOVER_STORE_DETAILS'));
}
return;
}
// Was there a plugin with the same name already installed?
if ($this->currentExtensionId)
{
if (!$this->parent->isOverwrite())
{
// Install failed, roll back changes
throw new \RuntimeException(
\JText::sprintf(
'JLIB_INSTALLER_ABORT_PLG_INSTALL_ALLREADY_EXISTS',
\JText::_('JLIB_INSTALLER_' . $this->route),
$this->name
)
);
}
$this->extension->load($this->currentExtensionId);
$this->extension->name = $this->name;
$this->extension->manifest_cache = $this->parent->generateManifestCache();
// Update the manifest cache and name
$this->extension->store();
}
else
{
// Store in the extensions table (1.6)
$this->extension->name = $this->name;
$this->extension->type = 'plugin';
$this->extension->ordering = 0;
$this->extension->element = $this->element;
$this->extension->folder = $this->group;
$this->extension->enabled = 0;
$this->extension->protected = 0;
$this->extension->access = 1;
$this->extension->client_id = 0;
$this->extension->params = $this->parent->getParams();
// Custom data
$this->extension->custom_data = '';
// System data
$this->extension->system_data = '';
$this->extension->manifest_cache = $this->parent->generateManifestCache();
// Editor plugins are published by default
if ($this->group === 'editors')
{
$this->extension->enabled = 1;
}
if (!$this->extension->store())
{
// Install failed, roll back changes
throw new \RuntimeException(
\JText::sprintf(
'JLIB_INSTALLER_ABORT_PLG_INSTALL_ROLLBACK',
\JText::_('JLIB_INSTALLER_' . $this->route),
$this->extension->getError()
)
);
}
// Since we have created a plugin 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', 'id' => $this->extension->extension_id));
}
}
/**
* Custom uninstall method
*
* @param integer $id The id of the plugin to uninstall
*
* @return boolean True on success
*
* @since 3.1
*/
public function uninstall($id)
{
$this->route = 'uninstall';
$row = null;
$retval = true;
$db = $this->parent->getDbo();
// First order of business will be to load the plugin object table from the database.
// This should give us the necessary information to proceed.
$row = Table::getInstance('extension');
if (!$row->load((int) $id))
{
\JLog::add(\JText::_('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_ERRORUNKOWNEXTENSION'), \JLog::WARNING, 'jerror');
return false;
}
// Is the plugin we are trying to uninstall a core one?
// Because that is not a good idea...
if ($row->protected)
{
\JLog::add(\JText::sprintf('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_WARNCOREPLUGIN', $row->name), \JLog::WARNING, 'jerror');
return false;
}
/*
* Does this extension have a parent package?
* If so, check if the package disallows individual extensions being uninstalled if the package is not being uninstalled
*/
if ($row->package_id && !$this->parent->isPackageUninstall() && !$this->canUninstallPackageChild($row->package_id))
{
\JLog::add(\JText::sprintf('JLIB_INSTALLER_ERROR_CANNOT_UNINSTALL_CHILD_OF_PACKAGE', $row->name), \JLog::WARNING, 'jerror');
return false;
}
// Get the plugin folder so we can properly build the plugin path
if (trim($row->folder) === '')
{
\JLog::add(\JText::_('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_FOLDER_FIELD_EMPTY'), \JLog::WARNING, 'jerror');
return false;
}
// Set the plugin root path
$this->parent->setPath('extension_root', JPATH_PLUGINS . '/' . $row->folder . '/' . $row->element);
$this->parent->setPath('source', $this->parent->getPath('extension_root'));
$this->parent->findManifest();
$this->setManifest($this->parent->getManifest());
// Attempt to load the language file; might have uninstall strings
$this->parent->setPath('source', JPATH_PLUGINS . '/' . $row->folder . '/' . $row->element);
$this->loadLanguage(JPATH_PLUGINS . '/' . $row->folder . '/' . $row->element);
/**
* ---------------------------------------------------------------------------------------------
* Installer Trigger Loading
* ---------------------------------------------------------------------------------------------
*/
// If there is a manifest class file, let's load it; we'll copy it later (don't have dest yet)
$manifestScript = (string) $this->getManifest()->scriptfile;
if ($manifestScript)
{
$manifestScriptFile = $this->parent->getPath('source') . '/' . $manifestScript;
// If a dash is present in the folder, remove it
$folderClass = str_replace('-', '', $row->folder);
// Set the class name
$classname = 'Plg' . $folderClass . $row->element . 'InstallerScript';
\JLoader::register($classname, $manifestScriptFile);
if (class_exists($classname))
{
// Create a new instance
$this->parent->manifestClass = new $classname($this);
// And set this so we can copy it later
$this->set('manifest_script', $manifestScript);
}
}
// Run preflight if possible (since we know we're not an update)
ob_start();
ob_implicit_flush(false);
if ($this->parent->manifestClass && method_exists($this->parent->manifestClass, 'preflight'))
{
if ($this->parent->manifestClass->preflight($this->route, $this) === false)
{
// Preflight failed, rollback changes
$this->parent->abort(\JText::_('JLIB_INSTALLER_ABORT_PLG_INSTALL_CUSTOM_INSTALL_FAILURE'));
return false;
}
}
// Create the $msg object and append messages from preflight
$msg = ob_get_contents();
ob_end_clean();
// Let's run the queries for the plugin
$utfresult = $this->parent->parseSQLFiles($this->getManifest()->uninstall->sql);
if ($utfresult === false)
{
// Install failed, rollback changes
$this->parent->abort(\JText::sprintf('JLIB_INSTALLER_ABORT_PLG_UNINSTALL_SQL_ERROR', $db->stderr(true)));
return false;
}
// Run the custom uninstall method if possible
ob_start();
ob_implicit_flush(false);
if ($this->parent->manifestClass && method_exists($this->parent->manifestClass, 'uninstall'))
{
$this->parent->manifestClass->uninstall($this);
}
// Append messages
$msg .= ob_get_contents();
ob_end_clean();
// Remove the plugin files
$this->parent->removeFiles($this->getManifest()->files, -1);
// Remove all media and languages as well
$this->parent->removeFiles($this->getManifest()->media);
$this->parent->removeFiles($this->getManifest()->languages, 1);
// Remove the schema version
$query = $db->getQuery(true)
->delete('#__schemas')
->where('extension_id = ' . $row->extension_id);
$db->setQuery($query);
$db->execute();
// Now we will no longer need the plugin object, so let's delete it
$row->delete($row->extension_id);
unset($row);
// Remove the plugin's folder
\JFolder::delete($this->parent->getPath('extension_root'));
if ($msg != '')
{
$this->parent->set('extension_message', $msg);
}
return $retval;
}
/**
* Custom discover method
*
* @return array Extension) list of extensions available
*
* @since 3.1
*/
public function discover()
{
$results = array();
$folder_list = \JFolder::folders(JPATH_SITE . '/plugins');
foreach ($folder_list as $folder)
{
$file_list = \JFolder::files(JPATH_SITE . '/plugins/' . $folder, '\.xml$');
foreach ($file_list as $file)
{
$manifest_details = Installer::parseXMLInstallFile(JPATH_SITE . '/plugins/' . $folder . '/' . $file);
$file = \JFile::stripExt($file);
// Ignore example plugins
if ($file === 'example' || $manifest_details === false)
{
continue;
}
$element = empty($manifest_details['filename']) ? $file : $manifest_details['filename'];
$extension = Table::getInstance('extension');
$extension->set('type', 'plugin');
$extension->set('client_id', 0);
$extension->set('element', $element);
$extension->set('folder', $folder);
$extension->set('name', $manifest_details['name']);
$extension->set('state', -1);
$extension->set('manifest_cache', json_encode($manifest_details));
$extension->set('params', '{}');
$results[] = $extension;
}
$folder_list = \JFolder::folders(JPATH_SITE . '/plugins/' . $folder);
foreach ($folder_list as $plugin_folder)
{
$file_list = \JFolder::files(JPATH_SITE . '/plugins/' . $folder . '/' . $plugin_folder, '\.xml$');
foreach ($file_list as $file)
{
$manifest_details = Installer::parseXMLInstallFile(
JPATH_SITE . '/plugins/' . $folder . '/' . $plugin_folder . '/' . $file
);
$file = \JFile::stripExt($file);
if ($file === 'example' || $manifest_details === false)
{
continue;
}
$element = empty($manifest_details['filename']) ? $file : $manifest_details['filename'];
// Ignore example plugins
$extension = Table::getInstance('extension');
$extension->set('type', 'plugin');
$extension->set('client_id', 0);
$extension->set('element', $element);
$extension->set('folder', $folder);
$extension->set('name', $manifest_details['name']);
$extension->set('state', -1);
$extension->set('manifest_cache', json_encode($manifest_details));
$extension->set('params', '{}');
$results[] = $extension;
}
}
}
return $results;
}
/**
* Refreshes the extension table cache.
*
* @return boolean Result of operation, true if updated, false on failure.
*
* @since 3.1
*/
public function refreshManifestCache()
{
/*
* Plugins use the extensions table as their primary store
* Similar to modules and templates, rather easy
* If it's not in the extensions table we just add it
*/
$client = ApplicationHelper::getClientInfo($this->parent->extension->client_id);
$manifestPath = $client->path . '/plugins/' . $this->parent->extension->folder . '/' . $this->parent->extension->element . '/'
. $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 = $manifest_details['name'];
if ($this->parent->extension->store())
{
return true;
}
else
{
\JLog::add(\JText::_('JLIB_INSTALLER_ERROR_PLG_REFRESH_MANIFEST_CACHE'), \JLog::WARNING, 'jerror');
return false;
}
}
}