WIP JwtVcJson

Author: cicnavi

src/Codebooks/ClaimsEnum.php

@@ -148,4 +148,6 @@ enum ClaimsEnum: string
     case Use = 'use';
     case UserAuthentication = 'user_authentication';
     case UserinfoEndpoint = 'userinfo_endpoint';
+    // VerifiableCredential
+    case Vc = 'vc';
 }

src/Exceptions/JwtVcJsonException.php

@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SimpleSAML\OpenID\Exceptions;
+
+class JwtVcJsonException extends JwsException
+{
+}

src/VerifiableCredentials/JwtVcJson.php

@@ -4,7 +4,9 @@
 
 namespace SimpleSAML\OpenID\VerifiableCredentials;
 
+use SimpleSAML\OpenID\Codebooks\ClaimsEnum;
 use SimpleSAML\OpenID\Codebooks\CredentialFormatIdentifiersEnum;
+use SimpleSAML\OpenID\Exceptions\JwtVcJsonException;
 use SimpleSAML\OpenID\Jws\ParsedJws;
 
 class JwtVcJson extends ParsedJws implements VerifiableCredentialInterface
@@ -13,4 +15,32 @@ public function getCredentialFormatIdentifier(): CredentialFormatIdentifiersEnum
     {
         return CredentialFormatIdentifiersEnum::JwtVcJson;
     }
+
+    /**
+     * @throws \SimpleSAML\OpenID\Exceptions\JwsException
+     * @throws \SimpleSAML\OpenID\Exceptions\JwtVcJsonException
+     * @return mixed[]
+     */
+    public function getVc(): array
+    {
+        $claimKey = ClaimsEnum::Vc->value;
+
+        $vc = $this->getPayloadClaim($claimKey) ?? throw new JwtVcJsonException('No vc claim found.');
+
+        if (is_array($vc)) {
+            return $vc;
+        }
+
+        throw new JwtVcJsonException('Invalid vc claim.');
+    }
+
+    /**
+     * @throws \SimpleSAML\OpenID\Exceptions\JwsException
+     */
+    protected function validate(): void
+    {
+        $this->validateByCallbacks(
+            $this->getVc(...),
+        );
+    }
 }