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<?php
/**
* Joomla! Content Management System
*
* @copyright (C) 2014 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\CMS\Installer;
use Joomla\CMS\Factory;
use Joomla\CMS\Filesystem\Folder;
use Joomla\CMS\Filter\InputFilter;
use Joomla\CMS\Installer\Manifest\PackageManifest;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Log\Log;
use Joomla\CMS\Table\Extension;
use Joomla\CMS\Table\Table;
use Joomla\CMS\Table\TableInterface;
use Joomla\Database\DatabaseAwareInterface;
use Joomla\Database\DatabaseAwareTrait;
use Joomla\Database\DatabaseDriver;
use Joomla\Database\DatabaseInterface;
use Joomla\DI\Container;
use Joomla\DI\ContainerAwareInterface;
use Joomla\DI\ContainerAwareTrait;
use Joomla\DI\Exception\ContainerNotFoundException;
use Joomla\DI\ServiceProviderInterface;
// phpcs:disable PSR1.Files.SideEffects
\defined('JPATH_PLATFORM') or die;
// phpcs:enable PSR1.Files.SideEffects
/**
* Abstract adapter for the installer.
*
* @since 3.4
*/
abstract class InstallerAdapter implements ContainerAwareInterface, DatabaseAwareInterface
{
use ContainerAwareTrait;
use DatabaseAwareTrait;
/**
* Changelog URL of extensions
*
* @var string
* @since 4.0.0
* */
protected $changelogurl = null;
/**
* ID for the currently installed extension if present
*
* @var integer
* @since 3.4
*/
protected $currentExtensionId = null;
/**
* The unique identifier for the extension (e.g. mod_login)
*
* @var string
* @since 3.4
* */
protected $element = null;
/**
* Extension object.
*
* @var Extension
* @since 3.4
* */
protected $extension = null;
/**
* Messages rendered by custom scripts
*
* @var string
* @since 3.4
*/
protected $extensionMessage = '';
/**
* Copy of the XML manifest file.
*
* Making this object public allows extensions to customize the manifest in custom scripts.
*
* @var \SimpleXMLElement
* @since 3.4
*/
public $manifest = null;
/**
* A path to the PHP file that the scriptfile declaration in the manifest refers to.
*
* @var string
* @since 3.4
*/
protected $manifest_script = null;
/**
* Name of the extension
*
* @var string
* @since 3.4
*/
protected $name = null;
/**
* Installer used with this adapter
*
* @var Installer
* @since 4.0.0
*/
protected $parent = null;
/**
* Install function routing
*
* @var string
* @since 3.4
*/
protected $route = 'install';
/**
* 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 = true;
/**
* The type of adapter in use
*
* @var string
* @since 3.4
*/
protected $type;
/**
* Constructor
*
* @param Installer $parent Parent object
* @param DatabaseDriver $db Database object
* @param array $options Configuration Options
*
* @since 3.4
*/
public function __construct(Installer $parent, DatabaseDriver $db, array $options = [])
{
$this->parent = $parent;
$this->setDatabase($db);
foreach ($options as $key => $value) {
if (property_exists($this, $key)) {
$this->$key = $value;
}
}
// Get a generic TableExtension instance for use if not already loaded
if (!($this->extension instanceof TableInterface)) {
$this->extension = Table::getInstance('extension');
}
// Sanity check, make sure the type is set by taking the adapter name from the class name
if (!$this->type) {
// This assumes the adapter short class name in its namespace is `<foo>Adapter`, replace this logic in subclasses if needed
$reflection = new \ReflectionClass(\get_called_class());
$this->type = str_replace('Adapter', '', $reflection->getShortName());
}
// Extension type is stored as lowercase in the database
$this->type = strtolower($this->type);
}
/**
* Check if a package extension allows its child extensions to be uninstalled individually
*
* @param integer $packageId The extension ID of the package to check
*
* @return boolean
*
* @since 3.7.0
* @note This method defaults to true to emulate the behavior of 3.6 and earlier which did not support this lookup
*/
protected function canUninstallPackageChild($packageId)
{
$package = Table::getInstance('extension');
// If we can't load this package ID, we have a corrupt database
if (!$package->load((int) $packageId)) {
return true;
}
$manifestFile = JPATH_MANIFESTS . '/packages/' . $package->element . '.xml';
$xml = $this->parent->isManifest($manifestFile);
// If the manifest doesn't exist, we've got some major issues
if (!$xml) {
return true;
}
$manifest = new PackageManifest($manifestFile);
return $manifest->blockChildUninstall === false;
}
/**
* 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(
['element' => $this->element, 'type' => $this->type]
);
// If it does exist, load it
if ($this->currentExtensionId) {
$this->extension->load(['element' => $this->element, 'type' => $this->type]);
}
} catch (\RuntimeException $e) {
// Install failed, roll back changes
throw new \RuntimeException(
Text::sprintf(
'JLIB_INSTALLER_ABORT_ROLLBACK',
Text::_('JLIB_INSTALLER_' . $this->route),
$e->getMessage()
),
$e->getCode(),
$e
);
}
}
/**
* Method to check if the extension is present in the filesystem, flags the route as update if so
*
* @return void
*
* @since 3.4
* @throws \RuntimeException
*/
protected function checkExtensionInFilesystem()
{
if (file_exists($this->parent->getPath('extension_root')) && (!$this->parent->isOverwrite() || $this->parent->isUpgrade())) {
// Look for an update function or update tag
$updateElement = $this->getManifest()->update;
// Upgrade manually set or update function available or update tag detected
if (
$updateElement || $this->parent->isUpgrade()
|| ($this->parent->manifestClass && method_exists($this->parent->manifestClass, 'update'))
) {
// Force this one
$this->parent->setOverwrite(true);
$this->parent->setUpgrade(true);
if ($this->currentExtensionId) {
// If there is a matching extension mark this as an update
$this->setRoute('update');
}
} elseif (!$this->parent->isOverwrite()) {
// We didn't have overwrite set, find an update function or find an update tag so lets call it safe
throw new \RuntimeException(
Text::sprintf(
'JLIB_INSTALLER_ABORT_DIRECTORY',
Text::_('JLIB_INSTALLER_' . $this->route),
$this->type,
$this->parent->getPath('extension_root')
)
);
}
}
}
/**
* Method to copy the extension's base files from the `<files>` tag(s) and the manifest file
*
* @return void
*
* @since 3.4
* @throws \RuntimeException
*/
abstract protected function copyBaseFiles();
/**
* Method to create the extension root path if necessary
*
* @return void
*
* @since 3.4
* @throws \RuntimeException
*/
protected function createExtensionRoot()
{
// If the extension directory does not exist, lets create it
$created = false;
if (!file_exists($this->parent->getPath('extension_root'))) {
if (!$created = Folder::create($this->parent->getPath('extension_root'))) {
throw new \RuntimeException(
Text::sprintf(
'JLIB_INSTALLER_ABORT_CREATE_DIRECTORY',
Text::_('JLIB_INSTALLER_' . $this->route),
$this->parent->getPath('extension_root')
)
);
}
}
/*
* Since we created the extension directory and will want to remove it if
* we have to roll back the installation, let's add it to the
* installation step stack
*/
if ($created) {
$this->parent->pushStep(
[
'type' => 'folder',
'path' => $this->parent->getPath('extension_root'),
]
);
}
}
/**
* Generic discover_install method for extensions
*
* @return boolean True on success
*
* @since 3.4
*/
public function discover_install()
{
// Get the extension's description
$description = (string) $this->getManifest()->description;
if ($description) {
$this->parent->message = Text::_($description);
} else {
$this->parent->message = '';
}
// Set the extension's name and element
$this->name = $this->getName();
$this->element = $this->getElement();
/*
* ---------------------------------------------------------------------------------------------
* Extension Precheck and Setup Section
* ---------------------------------------------------------------------------------------------
*/
// Setup the install paths and perform other prechecks as necessary
try {
$this->setupInstallPaths();
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
/*
* ---------------------------------------------------------------------------------------------
* Installer Trigger Loading
* ---------------------------------------------------------------------------------------------
*/
$this->setupScriptfile();
try {
$this->triggerManifestScript('preflight');
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
/*
* ---------------------------------------------------------------------------------------------
* Database Processing Section
* ---------------------------------------------------------------------------------------------
*/
try {
$this->storeExtension();
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
try {
$this->parseQueries();
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
// Run the custom install method
try {
$this->triggerManifestScript('install');
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
/*
* ---------------------------------------------------------------------------------------------
* Finalization and Cleanup Section
* ---------------------------------------------------------------------------------------------
*/
try {
$this->finaliseInstall();
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
// And now we run the postflight
try {
$this->triggerManifestScript('postflight');
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
return $this->extension->extension_id;
}
/**
* Method to handle database transactions for the installer
*
* @return boolean True on success
*
* @since 3.4
* @throws \RuntimeException
*/
protected function doDatabaseTransactions()
{
$route = $this->route === 'discover_install' ? 'install' : $this->route;
// Let's run the install queries for the component
if (isset($this->getManifest()->{$route}->sql)) {
$result = $this->parent->parseSQLFiles($this->getManifest()->{$route}->sql);
if ($result === false) {
// Only rollback if installing
if ($route === 'install') {
throw new \RuntimeException(Text::_('JLIB_INSTALLER_ABORT_INSTALL_ABORTED'));
}
return false;
}
// If installing with success and there is an uninstall script, add an installer rollback step to rollback if needed
if ($route === 'install' && isset($this->getManifest()->uninstall->sql)) {
$this->parent->pushStep(['type' => 'query', 'script' => $this->getManifest()->uninstall->sql]);
}
}
return true;
}
/**
* Load language files
*
* @param string $extension The name of the extension
* @param string $source Path to the extension
* @param string $base Base path for the extension language
*
* @return void
*
* @since 3.4
*/
protected function doLoadLanguage($extension, $source, $base = JPATH_ADMINISTRATOR)
{
$lang = Factory::getLanguage();
$lang->load($extension . '.sys', $source) || $lang->load($extension . '.sys', $base);
}
/**
* Method to finalise the installation processing
*
* @return void
*
* @since 4.0.0
* @throws \RuntimeException
*/
abstract protected function finaliseInstall();
/**
* Method to finalise the uninstallation processing
*
* @return boolean
*
* @since 4.0.0
* @throws \RuntimeException
*/
abstract protected function finaliseUninstall(): bool;
/**
* Checks if the adapter supports discover_install
*
* @return boolean
*
* @since 3.4
*/
public function getDiscoverInstallSupported()
{
return $this->supportsDiscoverInstall;
}
/**
* 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) {
// Ensure the element is a string
$element = (string) $this->getManifest()->element;
}
if (!$element) {
$element = $this->getName();
}
// Filter the name for illegal characters
return strtolower(InputFilter::getInstance()->clean($element, 'cmd'));
}
/**
* Get the manifest object.
*
* @return \SimpleXMLElement Manifest object
*
* @since 3.4
*/
public function getManifest()
{
return $this->manifest;
}
/**
* Get the filtered component name from the manifest
*
* @return string The filtered name
*
* @since 3.4
*/
public function getName()
{
// Ensure the name is a string
$name = (string) $this->getManifest()->name;
// Filter the name for illegal characters
$name = InputFilter::getInstance()->clean($name, 'string');
return $name;
}
/**
* Retrieves the parent installer
*
* @return Installer
*
* @since 4.0.0
*/
public function getParent()
{
return $this->parent;
}
/**
* Get the install route being followed
*
* @return string The install route
*
* @since 3.4
*/
public function getRoute()
{
return $this->route;
}
/**
* Get the class name for the install adapter script.
*
* @return string The class name.
*
* @since 3.4
*/
protected function getScriptClassName()
{
// Support element names like 'en-GB'
$className = InputFilter::getInstance()->clean($this->element, 'cmd') . 'InstallerScript';
// Cannot have - in class names
$className = str_replace('-', '', $className);
return $className;
}
/**
* Generic install method for extensions
*
* @return boolean|integer The extension ID on success, boolean false on failure
*
* @since 3.4
*/
public function install()
{
// Get the extension's description
$description = (string) $this->getManifest()->description;
$this->parent->message = '';
if ($description) {
$this->parent->message = Text::_($description);
}
// Set the extension's name and element
$this->name = $this->getName();
$this->element = $this->getElement();
$this->changelogurl = (string) $this->getManifest()->changelogurl;
/*
* ---------------------------------------------------------------------------------------------
* Extension Precheck and Setup Section
* ---------------------------------------------------------------------------------------------
*/
// Setup the install paths and perform other prechecks as necessary
try {
$this->setupInstallPaths();
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
// Check to see if an extension by the same name is already installed.
try {
$this->checkExistingExtension();
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
// Check if the extension is present in the filesystem
try {
$this->checkExtensionInFilesystem();
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
// If we are on the update route, run any custom setup routines
if ($this->route === 'update') {
try {
$this->setupUpdates();
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
}
/*
* ---------------------------------------------------------------------------------------------
* Installer Trigger Loading
* ---------------------------------------------------------------------------------------------
*/
$this->setupScriptfile();
try {
$this->triggerManifestScript('preflight');
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
/*
* ---------------------------------------------------------------------------------------------
* Filesystem Processing Section
* ---------------------------------------------------------------------------------------------
*/
// If the extension directory does not exist, lets create it
try {
$this->createExtensionRoot();
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
// Copy all necessary files
try {
$this->copyBaseFiles();
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
// Parse optional tags
$this->parseOptionalTags();
/*
* ---------------------------------------------------------------------------------------------
* Database Processing Section
* ---------------------------------------------------------------------------------------------
*/
try {
$this->storeExtension();
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
try {
$this->parseQueries();
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
// Run the custom method based on the route
try {
$this->triggerManifestScript($this->route);
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
/*
* ---------------------------------------------------------------------------------------------
* Finalization and Cleanup Section
* ---------------------------------------------------------------------------------------------
*/
try {
$this->finaliseInstall();
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
// And now we run the postflight
try {
$this->triggerManifestScript('postflight');
} catch (\RuntimeException $e) {
// Install failed, roll back changes
$this->parent->abort($e->getMessage());
return false;
}
return $this->extension->extension_id;
}
/**
* Method to parse the queries specified in the `<sql>` tags
*
* @return void
*
* @since 3.4
* @throws \RuntimeException
*/
protected function parseQueries()
{
// Let's run the queries for the extension
if (\in_array($this->route, ['install', 'discover_install', 'uninstall'])) {
// This method may throw an exception, but it is caught by the parent caller
if (!$this->doDatabaseTransactions()) {
throw new \RuntimeException(Text::_('JLIB_INSTALLER_ABORT_INSTALL_ABORTED'));
}
// Set the schema version to be the latest update version
if ($this->getManifest()->update) {
$this->parent->setSchemaVersion($this->getManifest()->update->schemas, $this->extension->extension_id);
}
} elseif ($this->route === 'update') {
if ($this->getManifest()->update) {
$result = $this->parent->parseSchemaUpdates($this->getManifest()->update->schemas, $this->extension->extension_id);
if ($result === false) {
// Install failed, rollback changes
throw new \RuntimeException(Text::_('JLIB_INSTALLER_ABORT_INSTALL_ABORTED'));
}
}
}
}
/**
* Method to parse optional tags in the manifest
*
* @return void
*
* @since 3.1
*/
protected function parseOptionalTags()
{
// Some extensions may not have optional tags
}
/**
* Prepares the adapter for a discover_install task
*
* @return void
*
* @since 3.4
*/
public function prepareDiscoverInstall()
{
// Adapters may not support discover install or may have overridden the default task and aren't using this
}
/**
* Removes this extension's files
*
* @return void
*
* @since 4.0.0
* @throws \RuntimeException
*/
abstract protected function removeExtensionFiles();
/**
* Set the manifest object.
*
* @param object $manifest The manifest object
*
* @return InstallerAdapter Instance of this class to support chaining
*
* @since 3.4
*/
public function setManifest($manifest)
{
$this->manifest = $manifest;
return $this;
}
/**
* Set the install route being followed
*
* @param string $route The install route being followed
*
* @return InstallerAdapter Instance of this class to support chaining
*
* @since 3.4
*/
public function setRoute($route)
{
$this->route = $route;
return $this;
}
/**
* Method to do any prechecks and setup the install paths for the extension
*
* @return void
*
* @since 3.4
*/
abstract protected function setupInstallPaths();
/**
* Setup the manifest script file for those adapters that use it.
*
* @return void
*
* @since 3.4
*/
protected function setupScriptfile()
{
// If there is a manifest class file, lets load it; we'll copy it later (don't have dest yet)
$manifestScript = (string) $this->getManifest()->scriptfile;
// When no script file, do nothing
if (!$manifestScript) {
return;
}
// Build a child container, so we do not overwrite the global one
// and start from scratch when multiple extensions are installed
try {
$container = new Container($this->getContainer());
} catch (ContainerNotFoundException $e) {
@trigger_error('Container must be set.', E_USER_DEPRECATED);
// Fallback to the global container
$container = new Container(Factory::getContainer());
}
// The real location of the file
$manifestScriptFile = $this->parent->getPath('source') . '/' . $manifestScript;
// Load the installer from the file
if (!file_exists($manifestScriptFile)) {
@trigger_error(
'Installer file must exist when defined. In version 5.0 this will crash.',
E_USER_DEPRECATED
);
return;
}
$installer = require_once $manifestScriptFile;
// When the instance is a service provider, then register the container with it
if ($installer instanceof ServiceProviderInterface) {
$installer->register($container);
}
// When the returned object is an installer instance, use it directly
if ($installer instanceof InstallerScriptInterface) {
$container->set(InstallerScriptInterface::class, $installer);
}
// When none is set, then use the legacy way
if (!$container->has(InstallerScriptInterface::class)) {
@trigger_error(
'Legacy installer files are deprecated and will be removed in 6.0. Use a service provider instead.',
E_USER_DEPRECATED
);
$classname = $this->getScriptClassName();
\JLoader::register($classname, $manifestScriptFile);
if (!class_exists($classname)) {
return;
}
$container->set(
InstallerScriptInterface::class,
function (Container $container) use ($classname) {
return new LegacyInstallerScript(new $classname($this));
}
);
}
// Create a new instance
$this->parent->manifestClass = $container->get(InstallerScriptInterface::class);
// Set the database
if ($this->parent->manifestClass instanceof DatabaseAwareInterface) {
$this->parent->manifestClass->setDatabase($container->get(DatabaseInterface::class));
}
// And set this so we can copy it later
$this->manifest_script = $manifestScript;
}
/**
* Method to do any prechecks and setup the uninstall job
*
* @return void
*
* @since 4.0.0
*/
abstract protected function setupUninstall();
/**
* Method to setup the update routine for the adapter
*
* @return void
*
* @since 3.4
*/
protected function setupUpdates()
{
// Some extensions may not have custom setup routines for updates
}
/**
* Method to store the extension to the database
*
* @return void
*
* @since 3.4
* @throws \RuntimeException
*/
abstract protected function storeExtension();
/**
* Executes a custom install script method
*
* @param string $method The install method to execute
*
* @return boolean True on success
*
* @since 3.4
* @throws \RuntimeException
*/
protected function triggerManifestScript($method)
{
ob_start();
ob_implicit_flush(false);
if ($this->parent->manifestClass && method_exists($this->parent->manifestClass, $method)) {
switch ($method) {
// The preflight and postflight take the route as a param
case 'preflight':
case 'postflight':
if ($this->parent->manifestClass->$method($this->route, $this) === false) {
if ($method !== 'postflight') {
// Clean and close the output buffer
ob_end_clean();
// The script failed, rollback changes
throw new \RuntimeException(
Text::sprintf(
'JLIB_INSTALLER_ABORT_INSTALL_CUSTOM_INSTALL_FAILURE',
Text::_('JLIB_INSTALLER_' . $this->route)
)
);
}
}
break;
// The install, uninstall, and update methods only pass this object as a param
case 'install':
case 'uninstall':
case 'update':
if ($this->parent->manifestClass->$method($this) === false) {
if ($method !== 'uninstall') {
// Clean and close the output buffer
ob_end_clean();
// The script failed, rollback changes
throw new \RuntimeException(
Text::sprintf(
'JLIB_INSTALLER_ABORT_INSTALL_CUSTOM_INSTALL_FAILURE',
Text::_('JLIB_INSTALLER_' . $this->route)
)
);
}
}
break;
}
}
// Append to the message object
$this->extensionMessage .= ob_get_clean();
// If in postflight or uninstall, set the message for display
if (($method === 'uninstall' || $method === 'postflight') && $this->extensionMessage !== '') {
$this->parent->set('extension_message', $this->extensionMessage);
}
return true;
}
/**
* Generic update method for extensions
*
* @param integer $id The extension ID
*
* @return boolean True on success
*
* @since 4.0.0
*/
public function uninstall($id)
{
if (!$this->extension->load((int) $id)) {
Log::add(Text::_('JLIB_INSTALLER_ERROR_UNKNOWN_EXTENSION'), Log::WARNING, 'jerror');
return false;
}
// Joomla 4: Locked extensions cannot be removed.
if (isset($this->extension->locked) && $this->extension->locked) {
Log::add(Text::_('JLIB_INSTALLER_ERROR_UNINSTALL_LOCKED_EXTENSION'), Log::WARNING, 'jerror');
return false;
} elseif (!isset($this->extension->locked) && $this->extension->protected) {
// Joomla 3 ('locked' property does not exist yet): Protected extensions cannot be removed.
Log::add(Text::_('JLIB_INSTALLER_ERROR_UNINSTALL_PROTECTED_EXTENSION'), Log::WARNING, 'jerror');
return false;
}
/*
* Does this extension have a parent package?
* If so, check if the package disallows individual extensions being uninstalled if the package is not being uninstalled
*/
if ($this->extension->package_id && !$this->parent->isPackageUninstall() && !$this->canUninstallPackageChild($this->extension->package_id)) {
Log::add(
Text::sprintf('JLIB_INSTALLER_ERROR_CANNOT_UNINSTALL_CHILD_OF_PACKAGE', $this->extension->name),
Log::WARNING,
'jerror'
);
return false;
}
// Setup the uninstall job as required
try {
$this->setupUninstall();
} catch (\RuntimeException $e) {
Log::add($e->getMessage(), Log::WARNING, 'jerror');
return false;
}
// Set the extension's name and element
$this->name = $this->getName();
$this->element = $this->getElement();
/*
* ---------------------------------------------------------------------------------------------
* Installer Trigger Loading and Uninstall
* ---------------------------------------------------------------------------------------------
*/
$this->setupScriptfile();
try {
$this->triggerManifestScript('preflight');
} catch (\RuntimeException $e) {
Log::add($e->getMessage(), Log::WARNING, 'jerror');
return false;
}
try {
$this->triggerManifestScript('uninstall');
} catch (\RuntimeException $e) {
// Ignore errors for now
}
// Tasks from here may fail but we will still attempt to finish the uninstall process
$retval = true;
/*
* ---------------------------------------------------------------------------------------------
* Database Processing Section
* ---------------------------------------------------------------------------------------------
*/
try {
$this->parseQueries();
} catch (\RuntimeException $e) {
Log::add($e->getMessage(), Log::WARNING, 'jerror');
$retval = false;
}
/*
* ---------------------------------------------------------------------------------------------
* Filesystem Processing Section
* ---------------------------------------------------------------------------------------------
*/
try {
$this->removeExtensionFiles();
} catch (\RuntimeException $e) {
Log::add($e->getMessage(), Log::WARNING, 'jerror');
$retval = false;
}
/*
* ---------------------------------------------------------------------------------------------
* Finalization and Cleanup Section
* ---------------------------------------------------------------------------------------------
*/
try {
$retval |= $this->finaliseUninstall();
} catch (\RuntimeException $e) {
Log::add($e->getMessage(), Log::WARNING, 'jerror');
$retval = false;
}
// And now we run the postflight
try {
$this->triggerManifestScript('postflight');
} catch (\RuntimeException $e) {
Log::add($e->getMessage(), Log::WARNING, 'jerror');
$retval = false;
}
return $retval;
}
/**
* Generic update method for extensions
*
* @return boolean|integer The extension ID on success, boolean false on failure
*
* @since 3.4
*/
public function update()
{
// Set the overwrite setting
$this->parent->setOverwrite(true);
$this->parent->setUpgrade(true);
// And make sure the route is set correctly
$this->setRoute('update');
// Now jump into the install method to run the update
return $this->install();
}
/**
* Proxy for db variable.
*
* @param string $name The name of the element
*
* @return mixed The value of the element if set, null otherwise
*
* @since 4.2.0
*
* @deprecated 4.3 will be removed in 6.0
* Use getDatabase() instead of directly accessing _db
*/
public function __get($name)
{
if ($name === 'db') {
return $this->getDatabase();
}
// Default the variable
if (!isset($this->$name)) {
$this->$name = null;
}
return $this->$name;
}
}