Add functionality to set custom web client in ReactiveOidcIdTokenDecoderFactory and that custom web client ultimately is used by NimbusReactiveJwtDecoder (spring-projectsgh-13274)

Author: ubaid4j

oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/oidc/authentication/ReactiveOidcIdTokenDecoderFactory.java

@@ -49,6 +49,7 @@
 import org.springframework.security.oauth2.jwt.ReactiveJwtDecoderFactory;
 import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;
+import org.springframework.web.reactive.function.client.WebClient;
 
 /**
  * A {@link ReactiveJwtDecoderFactory factory} that provides a {@link ReactiveJwtDecoder}
@@ -89,6 +90,7 @@ public final class ReactiveOidcIdTokenDecoderFactory implements ReactiveJwtDecod
 	private Function<ClientRegistration, Converter<Map<String, Object>, Map<String, Object>>> claimTypeConverterFactory = (
 			clientRegistration) -> DEFAULT_CLAIM_TYPE_CONVERTER;
 
+	private WebClient webClient = WebClient.create();
 	/**
 	 * Returns the default {@link Converter}'s used for type conversion of claim values
 	 * for an {@link OidcIdToken}.
@@ -164,6 +166,7 @@ private NimbusReactiveJwtDecoder buildDecoder(ClientRegistration clientRegistrat
 				throw new OAuth2AuthenticationException(oauth2Error, oauth2Error.toString());
 			}
 			return NimbusReactiveJwtDecoder.withJwkSetUri(jwkSetUri).jwsAlgorithm((SignatureAlgorithm) jwsAlgorithm)
+					.webClient(webClient)
 					.build();
 		}
 		if (jwsAlgorithm != null && MacAlgorithm.class.isAssignableFrom(jwsAlgorithm.getClass())) {
@@ -239,4 +242,15 @@ public void setClaimTypeConverterFactory(
 		this.claimTypeConverterFactory = claimTypeConverterFactory;
 	}
 
+	/**
+	 * Sets the custom web client that will be used in {@link NimbusReactiveJwtDecoder}.
+	 * The default webClient is created by {@code WebClient.create()}.
+	 * This is optional method if we need to set custom web client in {@link NimbusReactiveJwtDecoder}.
+	 *
+	 * @param webClient webclient
+	 */
+	public void setWebClient(WebClient webClient) {
+		this.webClient = webClient;
+	}
+
 }