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<?php
namespace Drupal\config\Form;
use Drupal\Core\Archiver\ArchiveTar;
use Drupal\Core\Config\StorageInterface;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Defines the configuration import form.
*
* @internal
*/
class ConfigImportForm extends FormBase {
/**
* The configuration storage.
*
* @var \Drupal\Core\Config\StorageInterface
*/
protected $configStorage;
/**
* Constructs a new ConfigImportForm.
*
* @param \Drupal\Core\Config\StorageInterface $config_storage
* The configuration storage.
*/
public function __construct(StorageInterface $config_storage) {
$this->configStorage = $config_storage;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
return new static(
$container->get('config.storage.sync')
);
}
/**
* {@inheritdoc}
*/
public function getFormId() {
return 'config_import_form';
}
/**
* {@inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state) {
$directory = config_get_config_directory(CONFIG_SYNC_DIRECTORY);
$directory_is_writable = is_writable($directory);
if (!$directory_is_writable) {
$this->messenger()->addError($this->t('The directory %directory is not writable.', ['%directory' => $directory]));
}
$form['import_tarball'] = [
'#type' => 'file',
'#title' => $this->t('Configuration archive'),
'#description' => $this->t('Allowed types: @extensions.', ['@extensions' => 'tar.gz tgz tar.bz2']),
];
$form['submit'] = [
'#type' => 'submit',
'#value' => $this->t('Upload'),
'#disabled' => !$directory_is_writable,
];
return $form;
}
/**
* {@inheritdoc}
*/
public function validateForm(array &$form, FormStateInterface $form_state) {
$all_files = $this->getRequest()->files->get('files', []);
if (!empty($all_files['import_tarball'])) {
$file_upload = $all_files['import_tarball'];
if ($file_upload->isValid()) {
$form_state->setValue('import_tarball', $file_upload->getRealPath());
return;
}
}
$form_state->setErrorByName('import_tarball', $this->t('The file could not be uploaded.'));
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
if ($path = $form_state->getValue('import_tarball')) {
$this->configStorage->deleteAll();
try {
$archiver = new ArchiveTar($path, 'gz');
$files = [];
foreach ($archiver->listContent() as $file) {
$files[] = $file['filename'];
}
$archiver->extractList($files, config_get_config_directory(CONFIG_SYNC_DIRECTORY));
$this->messenger()->addStatus($this->t('Your configuration files were successfully uploaded and are ready for import.'));
$form_state->setRedirect('config.sync');
}
catch (\Exception $e) {
$this->messenger()->addError($this->t('Could not extract the contents of the tar file. The error message is <em>@message</em>', ['@message' => $e->getMessage()]));
}
drupal_unlink($path);
}
}
}
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