function DrupalKernel::handle

File

core/lib/Drupal/Core/DrupalKernel.php, line 693

Class

DrupalKernel

The DrupalKernel class is the core of Drupal itself.

Namespace

Code

public function handle(Request $request, $type = self::MASTER_REQUEST, $catch = TRUE) {
    // Ensure sane PHP environment variables.
    static::bootEnvironment();
    try {
        $this->initializeSettings($request);
        // Redirect the user to the installation script if Drupal has not been
        // installed yet (i.e., if no $databases array has been defined in the
        // settings.php file) and we are not already installing.
        if (!Database::getConnectionInfo() && !InstallerKernel::installationAttempted() && PHP_SAPI !== 'cli') {
            $response = new RedirectResponse($request->getBasePath() . '/core/install.php', 302, [
                'Cache-Control' => 'no-cache',
            ]);
        }
        else {
            $this->boot();
            $response = $this->getHttpKernel()
                ->handle($request, $type, $catch);
        }
    } catch (\Exception $e) {
        if ($catch === FALSE) {
            throw $e;
        }
        $response = $this->handleException($e, $request, $type);
    }
    // Adapt response headers to the current request.
    $response->prepare($request);
    return $response;
}