/**
  * Require basic authentication.  Will request a username and password if none is given.
  *
  * Used by {@link Controller::init()}.
  *
  * @throws HTTPResponse_Exception
  *
  * @param string $realm
  * @param string|array $permissionCode Optional
  * @param boolean $tryUsingSessionLogin If true, then the method with authenticate against the
  *  session log-in if those credentials are disabled.
  * @return Member|bool $member
  */
 public static function requireLogin($realm, $permissionCode = null, $tryUsingSessionLogin = true)
 {
     $isRunningTests = class_exists('SilverStripe\\Dev\\SapphireTest', false) && SapphireTest::is_running_test();
     if (!Security::database_is_ready() || Director::is_cli() && !$isRunningTests) {
         return true;
     }
     /*
      * Enable HTTP Basic authentication workaround for PHP running in CGI mode with Apache
      * Depending on server configuration the auth header may be in HTTP_AUTHORIZATION or
      * REDIRECT_HTTP_AUTHORIZATION
      *
      * The follow rewrite rule must be in the sites .htaccess file to enable this workaround
      * RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
      */
     $authHeader = isset($_SERVER['HTTP_AUTHORIZATION']) ? $_SERVER['HTTP_AUTHORIZATION'] : (isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION']) ? $_SERVER['REDIRECT_HTTP_AUTHORIZATION'] : null);
     $matches = array();
     if ($authHeader && preg_match('/Basic\\s+(.*)$/i', $authHeader, $matches)) {
         list($name, $password) = explode(':', base64_decode($matches[1]));
         $_SERVER['PHP_AUTH_USER'] = strip_tags($name);
         $_SERVER['PHP_AUTH_PW'] = strip_tags($password);
     }
     $member = null;
     if (isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])) {
         $member = MemberAuthenticator::authenticate(array('Email' => $_SERVER['PHP_AUTH_USER'], 'Password' => $_SERVER['PHP_AUTH_PW']), null);
     }
     if (!$member && $tryUsingSessionLogin) {
         $member = Member::currentUser();
     }
     // If we've failed the authentication mechanism, then show the login form
     if (!$member) {
         $response = new HTTPResponse(null, 401);
         $response->addHeader('WWW-Authenticate', "Basic realm=\"{$realm}\"");
         if (isset($_SERVER['PHP_AUTH_USER'])) {
             $response->setBody(_t('BasicAuth.ERRORNOTREC', "That username / password isn't recognised"));
         } else {
             $response->setBody(_t('BasicAuth.ENTERINFO', "Please enter a username and password."));
         }
         // Exception is caught by RequestHandler->handleRequest() and will halt further execution
         $e = new HTTPResponse_Exception(null, 401);
         $e->setResponse($response);
         throw $e;
     }
     if ($permissionCode && !Permission::checkMember($member->ID, $permissionCode)) {
         $response = new HTTPResponse(null, 401);
         $response->addHeader('WWW-Authenticate', "Basic realm=\"{$realm}\"");
         if (isset($_SERVER['PHP_AUTH_USER'])) {
             $response->setBody(_t('BasicAuth.ERRORNOTADMIN', "That user is not an administrator."));
         }
         // Exception is caught by RequestHandler->handleRequest() and will halt further execution
         $e = new HTTPResponse_Exception(null, 401);
         $e->setResponse($response);
         throw $e;
     }
     return $member;
 }
 public function testDefaultAdminLockOut()
 {
     Config::inst()->update('SilverStripe\\Security\\Member', 'lock_out_after_incorrect_logins', 1);
     Config::inst()->update('SilverStripe\\Security\\Member', 'lock_out_delay_mins', 10);
     DBDatetime::set_mock_now('2016-04-18 00:00:00');
     $controller = new Security();
     $form = new Form($controller, 'Form', new FieldList(), new FieldList());
     // Test correct login
     MemberAuthenticator::authenticate(array('Email' => 'admin', 'Password' => 'wrongpassword'), $form);
     $this->assertTrue(Member::default_admin()->isLockedOut());
     $this->assertEquals(Member::default_admin()->LockedOutUntil, '2016-04-18 00:10:00');
 }