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<?php
declare(strict_types=1);
namespace Shaarli\Front\Controller\Visitor;
use Shaarli\Container\ShaarliContainer;
use Shaarli\Front\Exception\AlreadyInstalledException;
use Shaarli\Front\Exception\ResourcePermissionException;
use Shaarli\Helper\ApplicationUtils;
use Shaarli\Languages;
use Shaarli\Security\SessionManager;
use Slim\Http\Request;
use Slim\Http\Response;
/**
* Slim controller used to render install page, and create initial configuration file.
*/
class InstallController extends ShaarliVisitorController
{
public const SESSION_TEST_KEY = 'session_tested';
public const SESSION_TEST_VALUE = 'Working';
public function __construct(ShaarliContainer $container)
{
parent::__construct($container);
if (is_file($this->container->conf->getConfigFileExt())) {
throw new AlreadyInstalledException();
}
}
/**
* Display the install template page.
* Also test file permissions and sessions beforehand.
*/
public function index(Request $request, Response $response): Response
{
// Before installation, we'll make sure that permissions are set properly, and sessions are working.
$this->checkPermissions();
if (static::SESSION_TEST_VALUE
!== $this->container->sessionManager->getSessionParameter(static::SESSION_TEST_KEY)
) {
$this->container->sessionManager->setSessionParameter(static::SESSION_TEST_KEY, static::SESSION_TEST_VALUE);
return $this->redirect($response, '/install/session-test');
}
[$continents, $cities] = generateTimeZoneData(timezone_identifiers_list(), date_default_timezone_get());
$this->assignView('continents', $continents);
$this->assignView('cities', $cities);
$this->assignView('languages', Languages::getAvailableLanguages());
$phpEol = new \DateTimeImmutable(ApplicationUtils::getPhpEol(PHP_VERSION));
$this->assignView('php_version', PHP_VERSION);
$this->assignView('php_eol', format_date($phpEol, false));
$this->assignView('php_has_reached_eol', $phpEol < new \DateTimeImmutable());
$this->assignView('php_extensions', ApplicationUtils::getPhpExtensionsRequirement());
$this->assignView('permissions', ApplicationUtils::checkResourcePermissions($this->container->conf));
$this->assignView('pagetitle', t('Install Shaarli'));
return $response->write($this->render('install'));
}
/**
* Route checking that the session parameter has been properly saved between two distinct requests.
* If the session parameter is preserved, redirect to install template page, otherwise displays error.
*/
public function sessionTest(Request $request, Response $response): Response
{
// This part makes sure sessions works correctly.
// (Because on some hosts, session.save_path may not be set correctly,
// or we may not have write access to it.)
if (static::SESSION_TEST_VALUE
!== $this->container->sessionManager->getSessionParameter(static::SESSION_TEST_KEY)
) {
// Step 2: Check if data in session is correct.
$msg = t(
'<pre>Sessions do not seem to work correctly on your server.<br>'.
'Make sure the variable "session.save_path" is set correctly in your PHP config, '.
'and that you have write access to it.<br>'.
'It currently points to %s.<br>'.
'On some browsers, accessing your server via a hostname like \'localhost\' '.
'or any custom hostname without a dot causes cookie storage to fail. '.
'We recommend accessing your server via it\'s IP address or Fully Qualified Domain Name.<br>'
);
$msg = sprintf($msg, $this->container->sessionManager->getSavePath());
$this->assignView('message', $msg);
return $response->write($this->render('error'));
}
return $this->redirect($response, '/install');
}
/**
* Save installation form and initialize config file and datastore if necessary.
*/
public function save(Request $request, Response $response): Response
{
$timezone = 'UTC';
if (!empty($request->getParam('continent'))
&& !empty($request->getParam('city'))
&& isTimeZoneValid($request->getParam('continent'), $request->getParam('city'))
) {
$timezone = $request->getParam('continent') . '/' . $request->getParam('city');
}
$this->container->conf->set('general.timezone', $timezone);
$login = $request->getParam('setlogin');
$this->container->conf->set('credentials.login', $login);
$salt = sha1(uniqid('', true) .'_'. mt_rand());
$this->container->conf->set('credentials.salt', $salt);
$this->container->conf->set('credentials.hash', sha1($request->getParam('setpassword') . $login . $salt));
if (!empty($request->getParam('title'))) {
$this->container->conf->set('general.title', escape($request->getParam('title')));
} else {
$this->container->conf->set(
'general.title',
'Shared bookmarks on '.escape(index_url($this->container->environment))
);
}
$this->container->conf->set('translation.language', escape($request->getParam('language')));
$this->container->conf->set('updates.check_updates', !empty($request->getParam('updateCheck')));
$this->container->conf->set('api.enabled', !empty($request->getParam('enableApi')));
$this->container->conf->set(
'api.secret',
generate_api_secret(
$this->container->conf->get('credentials.login'),
$this->container->conf->get('credentials.salt')
)
);
$this->container->conf->set('general.header_link', $this->container->basePath . '/');
try {
// Everything is ok, let's create config file.
$this->container->conf->write($this->container->loginManager->isLoggedIn());
} catch (\Exception $e) {
$this->assignView('message', t('Error while writing config file after configuration update.'));
$this->assignView('stacktrace', $e->getMessage() . PHP_EOL . $e->getTraceAsString());
return $response->write($this->render('error'));
}
$this->container->sessionManager->setSessionParameter(
SessionManager::KEY_SUCCESS_MESSAGES,
[t('Shaarli is now configured. Please login and start shaaring your bookmarks!')]
);
return $this->redirect($response, '/login');
}
protected function checkPermissions(): bool
{
// Ensure Shaarli has proper access to its resources
$errors = ApplicationUtils::checkResourcePermissions($this->container->conf, true);
if (empty($errors)) {
return true;
}
$message = t('Insufficient permissions:') . PHP_EOL;
foreach ($errors as $error) {
$message .= PHP_EOL . $error;
}
throw new ResourcePermissionException($message);
}
}
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