Merge pull request #56 from DarthLegiON/kid

Added kid header in id token

src/IdTokenResponse.php

@@ -30,12 +30,19 @@ class IdTokenResponse extends BearerTokenResponse
  */
  protected $claimExtractor;
 
+ /**
+ * @var string|null
+ */
+ protected $keyIdentifier;
+
  public function __construct(
  IdentityProviderInterface $identityProvider,
- ClaimExtractor $claimExtractor
+ ClaimExtractor $claimExtractor,
+ ?string $keyIdentifier = null
  ) {
  $this->identityProvider = $identityProvider;
  $this->claimExtractor = $claimExtractor;
+ $this->keyIdentifier = $keyIdentifier;
  }
 
  protected function getBuilder(AccessTokenEntityInterface $accessToken, UserEntityInterface $userEntity)
@@ -87,6 +94,10 @@ protected function getExtraParams(AccessTokenEntityInterface $accessToken): arra
  $builder = $builder->withClaim($claimName, $claimValue);
  }
 
+ if ($this->keyIdentifier !== null) {
+ $builder = $builder->withHeader('kid', $keyIdentifier);
+ }
+
  if (
  method_exists($this->privateKey, 'getKeyContents')
  && !empty($this->privateKey->getKeyContents())