class Updater in Drupal 8
Same name and namespace in other branches
- 9 core/lib/Drupal/Core/Updater/Updater.php \Drupal\Core\Updater\Updater
Defines the base class for Updaters used in Drupal.
Hierarchy
- class \Drupal\Core\Updater\Updater
Expanded class hierarchy of Updater
4 files declare their use of Updater
- UpdateManagerInstall.php in core/
modules/ update/ src/ Form/ UpdateManagerInstall.php - UpdateReady.php in core/
modules/ update/ src/ Form/ UpdateReady.php - UpdaterTest.php in core/
tests/ Drupal/ KernelTests/ Core/ Updater/ UpdaterTest.php - UpdateUploadTest.php in core/
modules/ update/ tests/ src/ Functional/ UpdateUploadTest.php
File
- core/
lib/ Drupal/ Core/ Updater/ Updater.php, line 11
Namespace
Drupal\Core\UpdaterView source
class Updater {
/**
* Directory to install from.
*
* @var string
*/
public $source;
/**
* The root directory under which new projects will be copied.
*
* @var string
*/
protected $root;
/**
* Constructs a new updater.
*
* @param string $source
* Directory to install from.
* @param string $root
* The root directory under which the project will be copied to if it's a
* new project. Usually this is the app root (the directory in which the
* Drupal site is installed).
*/
public function __construct($source, $root) {
$this->source = $source;
$this->root = $root;
$this->name = self::getProjectName($source);
$this->title = self::getProjectTitle($source);
}
/**
* Returns an Updater of the appropriate type depending on the source.
*
* If a directory is provided which contains a module, will return a
* ModuleUpdater.
*
* @param string $source
* Directory of a Drupal project.
* @param string $root
* The root directory under which the project will be copied to if it's a
* new project. Usually this is the app root (the directory in which the
* Drupal site is installed).
*
* @return \Drupal\Core\Updater\Updater
* A new Drupal\Core\Updater\Updater object.
*
* @throws \Drupal\Core\Updater\UpdaterException
*/
public static function factory($source, $root) {
if (is_dir($source)) {
$updater = self::getUpdaterFromDirectory($source);
}
else {
throw new UpdaterException('Unable to determine the type of the source directory.');
}
return new $updater($source, $root);
}
/**
* Determines which Updater class can operate on the given directory.
*
* @param string $directory
* Extracted Drupal project.
*
* @return string
* The class name which can work with this project type.
*
* @throws \Drupal\Core\Updater\UpdaterException
*/
public static function getUpdaterFromDirectory($directory) {
// Gets a list of possible implementing classes.
$updaters = drupal_get_updaters();
foreach ($updaters as $updater) {
$class = $updater['class'];
if (call_user_func([
$class,
'canUpdateDirectory',
], $directory)) {
return $class;
}
}
throw new UpdaterException('Cannot determine the type of project.');
}
/**
* Determines what the most important (or only) info file is in a directory.
*
* Since there is no enforcement of which info file is the project's "main"
* info file, this will get one with the same name as the directory, or the
* first one it finds. Not ideal, but needs a larger solution.
*
* @param string $directory
* Directory to search in.
*
* @return string
* Path to the info file.
*/
public static function findInfoFile($directory) {
/** @var \Drupal\Core\File\FileSystemInterface $file_system */
$file_system = \Drupal::service('file_system');
$info_files = [];
if (is_dir($directory)) {
$info_files = $file_system
->scanDirectory($directory, '/.*\\.info.yml$/');
}
if (!$info_files) {
return FALSE;
}
foreach ($info_files as $info_file) {
if (mb_substr($info_file->filename, 0, -9) == $file_system
->basename($directory)) {
// Info file Has the same name as the directory, return it.
return $info_file->uri;
}
}
// Otherwise, return the first one.
$info_file = array_shift($info_files);
return $info_file->uri;
}
/**
* Get Extension information from directory.
*
* @param string $directory
* Directory to search in.
*
* @return array
* Extension info.
*
* @throws \Drupal\Core\Updater\UpdaterException
* If the info parser does not provide any info.
*/
protected static function getExtensionInfo($directory) {
$info_file = static::findInfoFile($directory);
$info = \Drupal::service('info_parser')
->parse($info_file);
if (empty($info)) {
throw new UpdaterException("Unable to parse info file: '{$info_file}'.");
}
return $info;
}
/**
* Gets the name of the project directory (basename).
*
* @todo It would be nice, if projects contained an info file which could
* provide their canonical name.
*
* @param string $directory
*
* @return string
* The name of the project.
*/
public static function getProjectName($directory) {
return \Drupal::service('file_system')
->basename($directory);
}
/**
* Returns the project name from a Drupal info file.
*
* @param string $directory
* Directory to search for the info file.
*
* @return string
* The title of the project.
*
* @throws \Drupal\Core\Updater\UpdaterException
*/
public static function getProjectTitle($directory) {
$info_file = self::findInfoFile($directory);
$info = \Drupal::service('info_parser')
->parse($info_file);
if (empty($info)) {
throw new UpdaterException("Unable to parse info file: '{$info_file}'.");
}
return $info['name'];
}
/**
* Stores the default parameters for the Updater.
*
* @param array $overrides
* An array of overrides for the default parameters.
*
* @return array
* An array of configuration parameters for an update or install operation.
*/
protected function getInstallArgs($overrides = []) {
$args = [
'make_backup' => FALSE,
'install_dir' => $this
->getInstallDirectory(),
'backup_dir' => $this
->getBackupDir(),
];
return array_merge($args, $overrides);
}
/**
* Updates a Drupal project and returns a list of next actions.
*
* @param \Drupal\Core\FileTransfer\FileTransfer $filetransfer
* Object that is a child of FileTransfer. Used for moving files
* to the server.
* @param array $overrides
* An array of settings to override defaults; see self::getInstallArgs().
*
* @return array
* An array of links which the user may need to complete the update
*
* @throws \Drupal\Core\Updater\UpdaterException
* @throws \Drupal\Core\Updater\UpdaterFileTransferException
*/
public function update(&$filetransfer, $overrides = []) {
try {
// Establish arguments with possible overrides.
$args = $this
->getInstallArgs($overrides);
// Take a Backup.
if ($args['make_backup']) {
$this
->makeBackup($filetransfer, $args['install_dir'], $args['backup_dir']);
}
if (!$this->name) {
// This is bad, don't want to delete the install directory.
throw new UpdaterException('Fatal error in update, cowardly refusing to wipe out the install directory.');
}
// Make sure the installation parent directory exists and is writable.
$this
->prepareInstallDirectory($filetransfer, $args['install_dir']);
if (is_dir($args['install_dir'] . '/' . $this->name)) {
// Remove the existing installed file.
$filetransfer
->removeDirectory($args['install_dir'] . '/' . $this->name);
}
// Copy the directory in place.
$filetransfer
->copyDirectory($this->source, $args['install_dir']);
// Make sure what we just installed is readable by the web server.
$this
->makeWorldReadable($filetransfer, $args['install_dir'] . '/' . $this->name);
// Run the updates.
// @todo Decide if we want to implement this.
$this
->postUpdate();
// For now, just return a list of links of things to do.
return $this
->postUpdateTasks();
} catch (FileTransferException $e) {
throw new UpdaterFileTransferException("File Transfer failed, reason: '" . strtr($e
->getMessage(), $e->arguments) . "'");
}
}
/**
* Installs a Drupal project, returns a list of next actions.
*
* @param \Drupal\Core\FileTransfer\FileTransfer $filetransfer
* Object that is a child of FileTransfer.
* @param array $overrides
* An array of settings to override defaults; see self::getInstallArgs().
*
* @return array
* An array of links which the user may need to complete the install.
*
* @throws \Drupal\Core\Updater\UpdaterFileTransferException
*/
public function install(&$filetransfer, $overrides = []) {
try {
// Establish arguments with possible overrides.
$args = $this
->getInstallArgs($overrides);
// Make sure the installation parent directory exists and is writable.
$this
->prepareInstallDirectory($filetransfer, $args['install_dir']);
// Copy the directory in place.
$filetransfer
->copyDirectory($this->source, $args['install_dir']);
// Make sure what we just installed is readable by the web server.
$this
->makeWorldReadable($filetransfer, $args['install_dir'] . '/' . $this->name);
// Potentially enable something?
// @todo Decide if we want to implement this.
$this
->postInstall();
// For now, just return a list of links of things to do.
return $this
->postInstallTasks();
} catch (FileTransferException $e) {
throw new UpdaterFileTransferException("File Transfer failed, reason: '" . strtr($e
->getMessage(), $e->arguments) . "'");
}
}
/**
* Makes sure the installation parent directory exists and is writable.
*
* @param \Drupal\Core\FileTransfer\FileTransfer $filetransfer
* Object which is a child of FileTransfer.
* @param string $directory
* The installation directory to prepare.
*
* @throws \Drupal\Core\Updater\UpdaterException
*/
public function prepareInstallDirectory(&$filetransfer, $directory) {
// Make the parent dir writable if need be and create the dir.
if (!is_dir($directory)) {
$parent_dir = dirname($directory);
if (!is_writable($parent_dir)) {
@chmod($parent_dir, 0755);
// It is expected that this will fail if the directory is owned by the
// FTP user. If the FTP user == web server, it will succeed.
try {
$filetransfer
->createDirectory($directory);
$this
->makeWorldReadable($filetransfer, $directory);
} catch (FileTransferException $e) {
// Probably still not writable. Try to chmod and do it again.
// @todo Make a new exception class so we can catch it differently.
try {
$old_perms = substr(sprintf('%o', fileperms($parent_dir)), -4);
$filetransfer
->chmod($parent_dir, 0755);
$filetransfer
->createDirectory($directory);
$this
->makeWorldReadable($filetransfer, $directory);
// Put the permissions back.
$filetransfer
->chmod($parent_dir, intval($old_perms, 8));
} catch (FileTransferException $e) {
$message = t($e
->getMessage(), $e->arguments);
$throw_message = t('Unable to create %directory due to the following: %reason', [
'%directory' => $directory,
'%reason' => $message,
]);
throw new UpdaterException($throw_message);
}
}
// Put the parent directory back.
@chmod($parent_dir, 0555);
}
}
}
/**
* Ensures that a given directory is world readable.
*
* @param \Drupal\Core\FileTransfer\FileTransfer $filetransfer
* Object which is a child of FileTransfer.
* @param string $path
* The file path to make world readable.
* @param bool $recursive
* If the chmod should be applied recursively.
*/
public function makeWorldReadable(&$filetransfer, $path, $recursive = TRUE) {
if (!is_executable($path)) {
// Set it to read + execute.
$new_perms = substr(sprintf('%o', fileperms($path)), -4, -1) . "5";
$filetransfer
->chmod($path, intval($new_perms, 8), $recursive);
}
}
/**
* Performs a backup.
*
* @param \Drupal\Core\FileTransfer\FileTransfer $filetransfer
* Object which is a child of FileTransfer.
* @param string $from
* The file path to copy from.
* @param string $to
* The file path to copy to.
*
* @todo Not implemented: https://www.drupal.org/node/2474355
*/
public function makeBackup(FileTransfer $filetransfer, $from, $to) {
}
/**
* Returns the full path to a directory where backups should be written.
*/
public function getBackupDir() {
return \Drupal::service('stream_wrapper_manager')
->getViaScheme('temporary')
->getDirectoryPath();
}
/**
* Performs actions after new code is updated.
*/
public function postUpdate() {
}
/**
* Performs actions after installation.
*/
public function postInstall() {
}
/**
* Returns an array of links to pages that should be visited post operation.
*
* @return array
* Links which provide actions to take after the install is finished.
*/
public function postInstallTasks() {
return [];
}
/**
* Returns an array of links to pages that should be visited post operation.
*
* @return array
* Links which provide actions to take after the update is finished.
*/
public function postUpdateTasks() {
return [];
}
}
Members
Name | Modifiers | Type | Description | Overrides |
---|---|---|---|---|
Updater:: |
protected | property | The root directory under which new projects will be copied. | |
Updater:: |
public | property | Directory to install from. | |
Updater:: |
public static | function | Returns an Updater of the appropriate type depending on the source. | |
Updater:: |
public static | function | Determines what the most important (or only) info file is in a directory. | |
Updater:: |
public | function | Returns the full path to a directory where backups should be written. | |
Updater:: |
protected static | function | Get Extension information from directory. | |
Updater:: |
protected | function | Stores the default parameters for the Updater. | |
Updater:: |
public static | function | Gets the name of the project directory (basename). | |
Updater:: |
public static | function | Returns the project name from a Drupal info file. | |
Updater:: |
public static | function | Determines which Updater class can operate on the given directory. | |
Updater:: |
public | function | Installs a Drupal project, returns a list of next actions. | |
Updater:: |
public | function | Performs a backup. | |
Updater:: |
public | function | Ensures that a given directory is world readable. | |
Updater:: |
public | function | Performs actions after installation. | 1 |
Updater:: |
public | function | Returns an array of links to pages that should be visited post operation. | 2 |
Updater:: |
public | function | Performs actions after new code is updated. | |
Updater:: |
public | function | Returns an array of links to pages that should be visited post operation. | 1 |
Updater:: |
public | function | Makes sure the installation parent directory exists and is writable. | |
Updater:: |
public | function | Updates a Drupal project and returns a list of next actions. | |
Updater:: |
public | function | Constructs a new updater. |