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<?php
/**
* @package Joomla.Platform
* @subpackage Installer
*
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
jimport('joomla.base.adapterinstance');
/**
* Plugin installer
*
* @package Joomla.Platform
* @subpackage Installer
* @since 11.1
*/
class JInstallerPlugin extends JAdapterInstance
{
/**
* Install function routing
*
* @var string
* @since 11.1
* */
protected $route = 'install';
/**
* The installation manifest XML object
*
* @var
* @since 11.1
* */
protected $manifest = null;
/**
*
*
* @var
* @since 11.1
* */
protected $manifest_script = null;
/**
*
*
* @var
* @since 11.1
* */
protected $name = null;
/**
*
*
* @var
* @since 11.1
* */
protected $scriptElement = null;
/**
* @var
* @since 11.1
*/
protected $oldFiles = null;
/**
* Custom loadLanguage method
*
* @param string $path The path where to find language files.
*
* @return void
*
* @since 11.1
*/
public function loadLanguage($path = null)
{
$source = $this->parent->getPath('source');
if (!$source)
{
$this->parent->setPath('source', JPATH_PLUGINS . '/' . $this->parent->extension->folder . '/' . $this->parent->extension->element);
}
$this->manifest = $this->parent->getManifest();
$element = $this->manifest->files;
if ($element)
{
$group = strtolower((string) $this->manifest->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}";
$lang = JFactory::getLanguage();
$source = $path ? $path : JPATH_PLUGINS . "/$group/$name";
$folder = (string) $element->attributes()->folder;
if ($folder && file_exists("$path/$folder"))
{
$source = "$path/$folder";
}
$lang->load($extension . '.sys', $source, null, false, false)
|| $lang->load($extension . '.sys', JPATH_ADMINISTRATOR, null, false, false)
|| $lang->load($extension . '.sys', $source, $lang->getDefault(), false, false)
|| $lang->load($extension . '.sys', JPATH_ADMINISTRATOR, $lang->getDefault(), false, false);
}
}
}
/**
* Custom install method
*
* @return boolean True on success
*
* @since 11.1
*/
public function install()
{
// Get a database connector object
$db = $this->parent->getDbo();
// Get the extension manifest object
$this->manifest = $this->parent->getManifest();
$xml = $this->manifest;
// Manifest Document Setup Section
// Set the extension name
$name = (string) $xml->name;
$name = JFilterInput::getInstance()->clean($name, 'string');
$this->set('name', $name);
// Get the component description
$description = (string) $xml->description;
if ($description)
{
$this->parent->set('message', JText::_($description));
}
else
{
$this->parent->set('message', '');
}
/*
* Backward Compatibility
* @todo Deprecate in future version
*/
$type = (string) $xml->attributes()->type;
// Set the installation path
if (count($xml->files->children()))
{
foreach ($xml->files->children() as $file)
{
if ((string) $file->attributes()->$type)
{
$element = (string) $file->attributes()->$type;
break;
}
}
}
$group = (string) $xml->attributes()->group;
if (!empty($element) && !empty($group))
{
$this->parent->setPath('extension_root', JPATH_PLUGINS . '/' . $group . '/' . $element);
}
else
{
$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_NO_FILE', JText::_('JLIB_INSTALLER_' . $this->route)));
return false;
}
// Check if we should enable overwrite settings
// Check to see if a plugin by the same name is already installed.
$query = $db->getQuery(true);
$query->select($query->qn('extension_id'))->from($query->qn('#__extensions'));
$query->where($query->qn('folder') . ' = ' . $query->q($group));
$query->where($query->qn('element') . ' = ' . $query->q($element));
$db->setQuery($query);
try
{
$db->execute();
}
catch (JException $e)
{
// Install failed, roll back changes
$this->parent
->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_ROLLBACK', JText::_('JLIB_INSTALLER_' . $this->route), $db->stderr(true)));
return false;
}
$id = $db->loadResult();
// If it's on the fs...
if (file_exists($this->parent->getPath('extension_root')) && (!$this->parent->isOverwrite() || $this->parent->isUpgrade()))
{
$updateElement = $xml->update;
// Upgrade manually set or
// Update function available or
// Update tag detected
if ($this->parent->isUpgrade() || ($this->parent->manifestClass && method_exists($this->parent->manifestClass, 'update'))
|| $updateElement)
{
// Force this one
$this->parent->setOverwrite(true);
$this->parent->setUpgrade(true);
if ($id)
{
// If there is a matching extension mark this as an update; semantics really
$this->route = 'update';
}
}
elseif (!$this->parent->isOverwrite())
{
// Overwrite is set
// We didn't have overwrite set, find an update function or find an update tag so lets call it safe
$this->parent
->abort(
JText::sprintf(
'JLIB_INSTALLER_ABORT_PLG_INSTALL_DIRECTORY', JText::_('JLIB_INSTALLER_' . $this->route),
$this->parent->getPath('extension_root')
)
);
return false;
}
}
// Installer Trigger Loading
// If there is an manifest class file, let's load it; we'll copy it later (don't have destination yet).
if ((string) $xml->scriptfile)
{
$manifestScript = (string) $xml->scriptfile;
$manifestScriptFile = $this->parent->getPath('source') . '/' . $manifestScript;
if (is_file($manifestScriptFile))
{
// Load the file
include_once $manifestScriptFile;
}
// If a dash is present in the group name, remove it
$groupClass = str_replace('-', '', $group);
// Set the class name
$classname = 'plg' . $groupClass . $element . 'InstallerScript';
if (class_exists($classname))
{
// Create a new instance
$this->parent->manifestClass = new $classname($this);
// And set this so we can copy it later
$this->set('manifest_script', $manifestScript);
// Note: if we don't find the class, don't bother to copy the file
}
}
// Run preflight if possible (since we know we're not an update)
ob_start();
ob_implicit_flush(false);
if ($this->parent->manifestClass && method_exists($this->parent->manifestClass, 'preflight'))
{
if ($this->parent->manifestClass->preflight($this->route, $this) === false)
{
// Install failed, rollback changes
$this->parent->abort(JText::_('JLIB_INSTALLER_ABORT_PLG_INSTALL_CUSTOM_INSTALL_FAILURE'));
return false;
}
}
$msg = ob_get_contents(); // create msg object; first use here
ob_end_clean();
// Filesystem Processing Section
// If the plugin directory does not exist, lets create it
$created = false;
if (!file_exists($this->parent->getPath('extension_root')))
{
if (!$created = JFolder::create($this->parent->getPath('extension_root')))
{
$this->parent
->abort(
JText::sprintf(
'JLIB_INSTALLER_ABORT_PLG_INSTALL_CREATE_DIRECTORY', JText::_('JLIB_INSTALLER_' . $this->route),
$this->parent->getPath('extension_root')
)
);
return false;
}
}
// If we're updating at this point when there is always going to be an extension_root find the old XML files
if ($this->route == 'update')
{
// Hunt for the original XML file
$old_manifest = null;
$tmpInstaller = new JInstaller; // create a new installer because findManifest sets stuff; side effects!
// Look in the extension root
$tmpInstaller->setPath('source', $this->parent->getPath('extension_root'));
if ($tmpInstaller->findManifest())
{
$old_manifest = $tmpInstaller->getManifest();
$this->oldFiles = $old_manifest->files;
}
}
// If we created the plugin directory and will want to remove it if we
// have to roll back the installation, let's add it to the installation
// step stack
if ($created)
{
$this->parent->pushStep(array('type' => 'folder', 'path' => $this->parent->getPath('extension_root')));
}
// Copy all necessary files
if ($this->parent->parseFiles($xml->files, -1, $this->oldFiles) === false)
{
// Install failed, roll back changes
$this->parent->abort();
return false;
}
// Parse optional tags -- media and language files for plugins go in admin app
$this->parent->parseMedia($xml->media, 1);
$this->parent->parseLanguages($xml->languages, 1);
// If there is a manifest script, lets copy it.
if ($this->get('manifest_script'))
{
$path['src'] = $this->parent->getPath('source') . '/' . $this->get('manifest_script');
$path['dest'] = $this->parent->getPath('extension_root') . '/' . $this->get('manifest_script');
if (!file_exists($path['dest']))
{
if (!$this->parent->copyFiles(array($path)))
{
// Install failed, rollback changes
$this->parent
->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_MANIFEST', JText::_('JLIB_INSTALLER_' . $this->route)));
return false;
}
}
}
// Database Processing Section
$row = JTable::getInstance('extension');
// Was there a plugin with the same name already installed?
if ($id)
{
if (!$this->parent->isOverwrite())
{
// Install failed, roll back changes
$this->parent
->abort(
JText::sprintf(
'JLIB_INSTALLER_ABORT_PLG_INSTALL_ALLREADY_EXISTS', JText::_('JLIB_INSTALLER_' . $this->route),
$this->get('name')
)
);
return false;
}
$row->load($id);
$row->name = $this->get('name');
$row->manifest_cache = $this->parent->generateManifestCache();
$row->store(); // update the manifest cache and name
}
else
{
// Store in the extensions table (1.6)
$row->name = $this->get('name');
$row->type = 'plugin';
$row->ordering = 0;
$row->element = $element;
$row->folder = $group;
$row->enabled = 0;
$row->protected = 0;
$row->access = 1;
$row->client_id = 0;
$row->params = $this->parent->getParams();
// Custom data
$row->custom_data = '';
// System data
$row->system_data = '';
$row->manifest_cache = $this->parent->generateManifestCache();
// Editor plugins are published by default
if ($group == 'editors')
{
$row->enabled = 1;
}
if (!$row->store())
{
// Install failed, roll back changes
$this->parent
->abort(
JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_ROLLBACK', JText::_('JLIB_INSTALLER_' . $this->route), $db->stderr(true))
);
return false;
}
// 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' => $row->extension_id));
$id = $row->extension_id;
}
// Let's run the queries for the module
// If Joomla 1.5 compatible, with discreet sql files - execute appropriate
// file for utf-8 support or non-utf-8 support
// Try for Joomla 1.5 type queries
// Second argument is the utf compatible version attribute
if (strtolower($this->route) == 'install')
{
$utfresult = $this->parent->parseSQLFiles($this->manifest->install->sql);
if ($utfresult === false)
{
// Install failed, rollback changes
$this->parent
->abort(
JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_SQL_ERROR', JText::_('JLIB_INSTALLER_' . $this->route), $db->stderr(true))
);
return false;
}
// Set the schema version to be the latest update version
if ($this->manifest->update)
{
$this->parent->setSchemaVersion($this->manifest->update->schemas, $row->extension_id);
}
}
elseif (strtolower($this->route) == 'update')
{
if ($this->manifest->update)
{
$result = $this->parent->parseSchemaUpdates($this->manifest->update->schemas, $row->extension_id);
if ($result === false)
{
// Install failed, rollback changes
$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_UPDATE_SQL_ERROR', $db->stderr(true)));
return false;
}
}
}
// Start Joomla! 1.6
ob_start();
ob_implicit_flush(false);
if ($this->parent->manifestClass && method_exists($this->parent->manifestClass, $this->route))
{
if ($this->parent->manifestClass->{$this->route}($this) === false)
{
// Install failed, rollback changes
$this->parent->abort(JText::_('JLIB_INSTALLER_ABORT_PLG_INSTALL_CUSTOM_INSTALL_FAILURE'));
return false;
}
}
// Append messages
$msg .= ob_get_contents();
ob_end_clean();
// Finalization and Cleanup Section
// Lastly, we will copy the manifest file to its appropriate place.
if (!$this->parent->copyManifest(-1))
{
// Install failed, rollback changes
$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_COPY_SETUP', JText::_('JLIB_INSTALLER_' . $this->route)));
return false;
}
// And now we run the postflight
ob_start();
ob_implicit_flush(false);
if ($this->parent->manifestClass && method_exists($this->parent->manifestClass, 'postflight'))
{
$this->parent->manifestClass->postflight($this->route, $this);
}
// Append messages
$msg .= ob_get_contents();
ob_end_clean();
if ($msg != '')
{
$this->parent->set('extension_message', $msg);
}
return $id;
}
/**
* Custom update method
*
* @return boolean True on success
*
* @since 11.1
*/
public function update()
{
// Set the overwrite setting
$this->parent->setOverwrite(true);
$this->parent->setUpgrade(true);
// Set the route for the install
$this->route = 'update';
// Go to install which handles updates properly
return $this->install();
}
/**
* Custom uninstall method
*
* @param integer $id The id of the plugin to uninstall
*
* @return boolean True on success
*
* @since 11.1
*/
public function uninstall($id)
{
$this->route = 'uninstall';
// Initialise variables.
$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.
$row = JTable::getInstance('extension');
if (!$row->load((int) $id))
{
JError::raiseWarning(100, JText::_('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_ERRORUNKOWNEXTENSION'));
return false;
}
// Is the plugin we are trying to uninstall a core one?
// Because that is not a good idea...
if ($row->protected)
{
JError::raiseWarning(100, JText::sprintf('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_WARNCOREPLUGIN', $row->name));
return false;
}
// Get the plugin folder so we can properly build the plugin path
if (trim($row->folder) == '')
{
JError::raiseWarning(100, JText::_('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_FOLDER_FIELD_EMPTY'));
return false;
}
// Set the plugin root path
if (is_dir(JPATH_PLUGINS . '/' . $row->folder . '/' . $row->element))
{
// Use 1.6 plugins
$this->parent->setPath('extension_root', JPATH_PLUGINS . '/' . $row->folder . '/' . $row->element);
}
else
{
// Use Legacy 1.5 plugins
$this->parent->setPath('extension_root', JPATH_PLUGINS . '/' . $row->folder);
}
// Because 1.5 plugins don't have their own folders we cannot use the standard method of finding an installation manifest
// Since 1.6 they do, however until we move to 1.7 and remove 1.6 legacy we still need to use this method.
// When we get there it'll be something like "$this->parent->findManifest();$manifest = $this->parent->getManifest();"
$manifestFile = $this->parent->getPath('extension_root') . '/' . $row->element . '.xml';
if (!file_exists($manifestFile))
{
JError::raiseWarning(100, JText::_('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_INVALID_NOTFOUND_MANIFEST'));
return false;
}
$xml = JFactory::getXML($manifestFile);
$this->manifest = $xml;
// If we cannot load the XML file return null
if (!$xml)
{
JError::raiseWarning(100, JText::_('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_LOAD_MANIFEST'));
return false;
}
/*
* Check for a valid XML root tag.
* @todo: Remove backwards compatibility in a future version
* Should be 'extension', but for backward compatibility we will accept 'install'.
*/
if ($xml->getName() != 'install' && $xml->getName() != 'extension')
{
JError::raiseWarning(100, JText::_('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_INVALID_MANIFEST'));
return false;
}
// 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 an manifest class file, let's load it; we'll copy it later (don't have dest yet)
$manifestScript = (string) $xml->scriptfile;
if ($manifestScript)
{
$manifestScriptFile = $this->parent->getPath('source') . '/' . $manifestScript;
if (is_file($manifestScriptFile))
{
// Load the file
include_once $manifestScriptFile;
}
// If a dash is present in the folder, remove it
$folderClass = str_replace('-', '', $row->folder);
// Set the class name
$classname = 'plg' . $folderClass . $row->element . 'InstallerScript';
if (class_exists($classname))
{
// Create a new instance
$this->parent->manifestClass = new $classname($this);
// And set this so we can copy it later
$this->set('manifest_script', $manifestScript);
// Note: if we don't find the class, don't bother to copy the file
}
}
// Run preflight if possible (since we know we're not an update)
ob_start();
ob_implicit_flush(false);
if ($this->parent->manifestClass && method_exists($this->parent->manifestClass, 'preflight'))
{
if ($this->parent->manifestClass->preflight($this->route, $this) === false)
{
// Install failed, rollback changes
$this->parent->abort(JText::_('JLIB_INSTALLER_ABORT_PLG_INSTALL_CUSTOM_INSTALL_FAILURE'));
return false;
}
}
// Create msg object; first use here
$msg = ob_get_contents();
ob_end_clean();
// Let's run the queries for the module
// If Joomla 1.5 compatible, with discreet sql files - execute appropriate
// file for utf-8 support or non-utf-8 support
// Try for Joomla 1.5 type queries
// Second argument is the utf compatible version attribute
$utfresult = $this->parent->parseSQLFiles($xml->{strtolower($this->route)}->sql);
if ($utfresult === false)
{
// Install failed, rollback changes
$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_UNINSTALL_SQL_ERROR', $db->stderr(true)));
return false;
}
// Start Joomla! 1.6
ob_start();
ob_implicit_flush(false);
if ($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
$this->parent->removeFiles($xml->images, -1);
$this->parent->removeFiles($xml->files, -1);
JFile::delete($manifestFile);
// Remove all media and languages as well
$this->parent->removeFiles($xml->media);
$this->parent->removeFiles($xml->languages, 1);
// Remove the schema version
$query = $db->getQuery(true);
$query->delete()->from('#__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);
// If the folder is empty, let's delete it
$files = JFolder::files($this->parent->getPath('extension_root'));
JFolder::delete($this->parent->getPath('extension_root'));
if ($msg)
{
$this->parent->set('extension_message', $msg);
}
return $retval;
}
/**
* Custom discover method
*
* @return array JExtension) list of extensions available
*
* @since 11.1
*/
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 = JApplicationHelper::parseXMLInstallFile(JPATH_SITE . '/plugins/' . $folder . '/' . $file);
$file = JFile::stripExt($file);
// Ignore example plugins
if ($file == 'example')
{
continue;
}
$extension = JTable::getInstance('extension');
$extension->set('type', 'plugin');
$extension->set('client_id', 0);
$extension->set('element', $file);
$extension->set('folder', $folder);
$extension->set('name', $file);
$extension->set('state', -1);
$extension->set('manifest_cache', json_encode($manifest_details));
$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 = JApplicationHelper::parseXMLInstallFile(
JPATH_SITE . '/plugins/' . $folder . '/' . $plugin_folder . '/' . $file
);
$file = JFile::stripExt($file);
if ($file == 'example')
{
continue;
}
// ignore example plugins
$extension = JTable::getInstance('extension');
$extension->set('type', 'plugin');
$extension->set('client_id', 0);
$extension->set('element', $file);
$extension->set('folder', $folder);
$extension->set('name', $file);
$extension->set('state', -1);
$extension->set('manifest_cache', json_encode($manifest_details));
$results[] = $extension;
}
}
}
return $results;
}
/**
* Custom discover_install method.
*
* @return mixed
*
* @since 11.1
*/
public function discover_install()
{
// 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
$client = JApplicationHelper::getClientInfo($this->parent->extension->client_id);
if (is_dir($client->path . '/plugins/' . $this->parent->extension->folder . '/' . $this->parent->extension->element))
{
$manifestPath = $client->path . '/plugins/' . $this->parent->extension->folder . '/' . $this->parent->extension->element . '/'
. $this->parent->extension->element . '.xml';
}
else
{
$manifestPath = $client->path . '/plugins/' . $this->parent->extension->folder . '/' . $this->parent->extension->element . '.xml';
}
$this->parent->manifest = $this->parent->isManifest($manifestPath);
$description = (string) $this->parent->manifest->description;
if ($description)
{
$this->parent->set('message', JText::_($description));
}
else
{
$this->parent->set('message', '');
}
$this->parent->setPath('manifest', $manifestPath);
$manifest_details = JApplicationHelper::parseXMLInstallFile($manifestPath);
$this->parent->extension->manifest_cache = json_encode($manifest_details);
$this->parent->extension->state = 0;
$this->parent->extension->name = $manifest_details['name'];
$this->parent->extension->enabled = ('editors' == $this->parent->extension->folder) ? 1 : 0;
$this->parent->extension->params = $this->parent->getParams();
if ($this->parent->extension->store())
{
return $this->parent->extension->get('extension_id');
}
else
{
JError::raiseWarning(101, JText::_('JLIB_INSTALLER_ERROR_PLG_DISCOVER_STORE_DETAILS'));
return false;
}
}
/**
* Refreshes the extension table cache.
*
* @return boolean Result of operation, true if updated, false on failure.
*
* @since 11.1
*/
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
$client = JApplicationHelper::getClientInfo($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);
$manifest_details = JApplicationHelper::parseXMLInstallFile($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
{
JError::raiseWarning(101, JText::_('JLIB_INSTALLER_ERROR_PLG_REFRESH_MANIFEST_CACHE'));
return false;
}
}
}