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Name File: plugin.php
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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; } } }
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