Throw exception before normalization on invalid cipher

eliasfernandez · eliasfernandez · commit eb6c7112b492 · 2025-02-07T13:40:15.000+01:00
diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
@@ -2299,7 +2299,14 @@ private function addMailerSection(ArrayNodeDefinition $rootNode, callable $enabl
                                     ->defaultNull()
                                     ->beforeNormalization()
                                         ->always(function ($v): ?int {
-                                            return null !== $v && \defined('OPENSSL_CIPHER_'.$v) ? \constant('OPENSSL_CIPHER_'.$v) : null;
+                                            if (null === $v) {
+                                                return null;
+                                            }
+                                            if (\defined('OPENSSL_CIPHER_'.$v)) {
+                                                return \constant('OPENSSL_CIPHER_'.$v);
+                                            }
+
+                                            throw new \InvalidArgumentException(\sprintf('"%s" is not a valid OPENSSL cipher.', $v));
                                         })
                                     ->end()
                                     ->validate()
