IBX-8180: Applied review remarks

Author: barw4

composer.json

@@ -41,7 +41,8 @@
         "symfony/routing": "^5.3",
         "symfony/security-bundle": "^5.3",
         "symfony/security-csrf": "^5.3",
-        "symfony/yaml": "^5.3"
+        "symfony/yaml": "^5.3",
+        "webmozart/assert": "^1.11"
     },
     "require-dev": {
         "ibexa/ci-scripts": "^0.2@dev",

src/lib/Server/Input/Parser/AbstractDestinationLocationParser.php

@@ -14,6 +14,7 @@
 use Ibexa\Rest\Server\Exceptions\ValidationFailedException;
 use Ibexa\Rest\Server\Validation\Builder\Input\Parser\BaseInputParserValidatorBuilder;
 use Symfony\Component\Validator\Validator\ValidatorInterface;
+use Webmozart\Assert\Assert;
 
 abstract class AbstractDestinationLocationParser extends BaseParser
 {
@@ -56,8 +57,11 @@ private function getLocationByPath(string $path): Location
     private function extractLocationIdFromPath(string $path): int
     {
         $pathParts = explode('/', $path);
+        $lastPart = array_pop($pathParts);
 
-        return (int)array_pop($pathParts);
+        Assert::integerish($lastPart);
+
+        return (int)$lastPart;
     }
 
     /**

src/lib/Server/Validation/Builder/Input/Parser/SwapLocationInputValidatorBuilder.php

@@ -12,7 +12,7 @@
 use Symfony\Component\Validator\Constraint;
 use Symfony\Component\Validator\Constraints as Assert;
 
-class SwapLocationInputValidatorBuilder extends BaseInputParserValidatorBuilder
+final class SwapLocationInputValidatorBuilder extends BaseInputParserValidatorBuilder
 {
     protected function buildConstraint(): Constraint
     {