Issue #3148636 by piggito, taras.suliatitskiy, Anybody: Automated Drupal 9 compatibility fixes

restrict_ip.info.yml

 name: 'Restrict IP'
 description: 'Restricts access to the site to a list of user defined IP addresses'
 core: '8.x'
+core_version_requirement: ^8 || ^9
 type: 'module'
 configure: restrict_ip.admin_page

restrict_ip.module

@@ -4,6 +4,7 @@ use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\Access\AccessResult;
 use Drupal\Core\Asset\AttachedAssetsInterface;
 use Drupal\block\BlockInterface;
+Use Drupal\block\BlockRepositoryInterface;
 
 /**
  * Implementation of hook_block_access()
@@ -38,7 +39,7 @@ function restrict_ip_preprocess_page(&$build)
 {
 	if(\Drupal::service('restrict_ip.service')->userIsBlocked())
 	{
-		$regions = system_region_list(\Drupal::service('theme.manager')->getActiveTheme()->getName(), REGIONS_ALL);
+		$regions = system_region_list(\Drupal::service('theme.manager')->getActiveTheme()->getName(), BlockRepositoryInterface::REGIONS_ALL);
 		unset($regions['content']);
 
 		$whitelisted_regions = Drupal::service('module_handler')->invokeAll('restrict_ip_whitelisted_regions');

src/EventSubscriber/RestrictIpEventSubscriber.php

@@ -125,6 +125,6 @@ class RestrictIpEventSubscriber implements EventSubscriberInterface
 
 	private function setMessage($message)
 	{
-		drupal_set_message($message);
+		\Drupal::messenger()->addStatus($message);
 	}
 }

tests/src/Functional/RestrictIpAccessTest.php

@@ -190,7 +190,7 @@ class RestrictIpAccessTest extends RestrictIpBrowserTestBase
 			$counter = 1;
 		}
 
-		$node = $this->container->get('entity.manager')->getStorage('node')
+		$node = $this->container->get('entity_type.manager')->getStorage('node')
 			->create([
 				'type' => 'article',
 				'title' => 'Article ' . $counter,