Update SignatureKeyPairConfig

Author: cicnavi

src/ValueAbstracts/SignatureKeyPairConfig.php

@@ -11,7 +11,7 @@ class SignatureKeyPairConfig
     /**
      * @param \SimpleSAML\OpenID\Algorithms\SignatureAlgorithmEnum $signatureAlgorithm Signature algorithm
      * to use for signing JWTs.
-     * @param \SimpleSAML\OpenID\ValueAbstracts\KeyPairFilenameConfig $keyPairConfig Key pair configuration to use for
+     * @param \SimpleSAML\OpenID\ValueAbstracts\KeyPairConfigInterface $keyPairConfig Key pair configuration to use for
      * signing JWTs.
      */
     public function __construct(
@@ -27,7 +27,7 @@ public function getSignatureAlgorithm(): SignatureAlgorithmEnum
     }
 
 
-    public function getKeyPairConfig(): KeyPairFilenameConfig
+    public function getKeyPairConfig(): KeyPairConfigInterface
     {
         return $this->keyPairConfig;
     }

src/ValueAbstracts/SignatureKeyPairConfigBag.php

@@ -4,6 +4,8 @@
 
 namespace SimpleSAML\OpenID\ValueAbstracts;
 
+use SimpleSAML\OpenID\Exceptions\OpenIdException;
+
 class SignatureKeyPairConfigBag
 {
     /**
@@ -69,4 +71,15 @@ public function getFirst(): ?SignatureKeyPairConfig
     {
         return $this->signatureKeyPairConfigs[array_key_first($this->signatureKeyPairConfigs)] ?? null;
     }
+
+
+    /**
+     * @throws \SimpleSAML\OpenID\Exceptions\OpenIdException
+     */
+    public function getFirstOrFail(): SignatureKeyPairConfig
+    {
+        return $this->getFirst() ?? throw new OpenIdException(
+            'Signature key pair config is not set.',
+        );
+    }
 }