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<?php |
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declare(strict_types=1); |
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/* For licensing terms, see /license.txt */ |
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namespace Chamilo\CoreBundle\EventSubscriber; |
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use Doctrine\DBAL\Connection; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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use Symfony\Component\HttpFoundation\RedirectResponse; |
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use Symfony\Component\HttpKernel\Event\RequestEvent; |
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use Symfony\Component\HttpKernel\KernelEvents; |
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final class InstallDbGuardSubscriber implements EventSubscriberInterface |
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{ |
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private const VERSION_KEY = 'chamilo_database_version'; |
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public function __construct(private readonly Connection $connection) {} |
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public static function getSubscribedEvents(): array |
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{ |
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return [KernelEvents::REQUEST => ['onKernelRequest', 2048]]; |
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} |
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public function onKernelRequest(RequestEvent $event): void |
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{ |
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if (!$event->isMainRequest() || PHP_SAPI === 'cli') { |
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return; |
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} |
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$request = $event->getRequest(); |
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$path = $request->getPathInfo(); |
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if ( |
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str_starts_with($path, '/main/install/') |
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|| str_starts_with($path, '/_wdt') |
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|| str_starts_with($path, '/_profiler') |
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|| str_starts_with($path, '/build/') |
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|| str_starts_with($path, '/bundles/') |
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|| str_starts_with($path, '/favicon') |
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) { |
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return; |
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} |
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$installedFlag = (string) ( |
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$request->server->get('APP_INSTALLED') |
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?? $_ENV['APP_INSTALLED'] |
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?? getenv('APP_INSTALLED') |
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?? '0' |
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); |
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$installedFlag = trim($installedFlag, " \t\n\r\0\x0B'\""); |
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if ($installedFlag !== '1') { |
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$this->redirectToInstaller($event); |
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return; |
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} |
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// Cache "healthy" per PHP-FPM worker |
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static $isHealthy = false; |
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if ($isHealthy) { |
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return; |
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} |
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// Cache which settings table to use per PHP-FPM worker |
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static $settingsTable = null; |
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try { |
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// If DB is down/unreachable, this will fail quickly |
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$this->connection->executeQuery($this->connection->getDatabasePlatform()->getDummySelectSQL()); |
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if ($settingsTable === null) { |
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$settingsTable = $this->detectSettingsTable(); |
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if ($settingsTable === null) { |
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$this->redirectToInstaller($event); |
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return; |
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} |
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} |
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// Cheap proof: at least 1 row |
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$hasRow = $this->connection->fetchOne("SELECT 1 FROM {$settingsTable} LIMIT 1"); |
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if ($hasRow === false || $hasRow === null) { |
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$this->redirectToInstaller($event); |
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return; |
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} |
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// Read DB version (try common column names; only runs until first success) |
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$version = null; |
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foreach (['selected_value', 'value', 'c_value'] as $col) { |
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try { |
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$version = $this->connection->fetchOne( |
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"SELECT {$col} FROM {$settingsTable} WHERE variable = :var LIMIT 1", |
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['var' => self::VERSION_KEY] |
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); |
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if (!empty($version)) { |
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break; |
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} |
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} catch (\Throwable) { |
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// Try next column |
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} |
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} |
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if (empty($version)) { |
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$this->redirectToInstaller($event); |
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return; |
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} |
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$isHealthy = true; |
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} catch (\Throwable) { |
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$this->redirectToInstaller($event); |
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} |
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} |
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private function detectSettingsTable(): ?string |
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{ |
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// Fallback to settings |
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try { |
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$this->connection->fetchOne('SELECT 1 FROM settings LIMIT 1'); |
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return 'settings'; |
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} catch (\Throwable) { |
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} |
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return null; |
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} |
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private function redirectToInstaller(RequestEvent $event): void |
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{ |
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$event->setResponse(new RedirectResponse('/main/install/index.php', 302)); |
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$event->stopPropagation(); |
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} |
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} |
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chamilo /
chamilo-lms
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