fix: create subject tag (#762)

Author: chivehao

server/src/main/java/run/ikaros/server/core/tag/TagEndpoint.java

@@ -5,10 +5,10 @@
 import static org.springdoc.core.fn.builders.requestbody.Builder.requestBodyBuilder;
 
 import io.swagger.v3.oas.annotations.enums.ParameterIn;
+import java.security.Principal;
 import java.util.Optional;
 import lombok.extern.slf4j.Slf4j;
 import org.springdoc.webflux.core.fn.SpringdocRouteBuilder;
-import org.springframework.security.authentication.AuthenticationCredentialsNotFoundException;
 import org.springframework.stereotype.Component;
 import org.springframework.util.Assert;
 import org.springframework.web.reactive.function.server.RouterFunction;
@@ -151,10 +151,11 @@ private Mono<ServerResponse> listAttachmentTagsByAttachmentId(ServerRequest requ
 
     private Mono<ServerResponse> create(ServerRequest request) {
         return request.bodyToMono(Tag.class)
-            .flatMap(tag -> userService.getUserIdFromSecurityContext()
-                .map(tag::setUserId)
-                .onErrorResume(AuthenticationCredentialsNotFoundException.class,
-                    e -> Mono.just(tag)))
+            .flatMap(tag -> request.principal()
+                .map(Principal::getName)
+                .flatMap(userService::getUserByUsername)
+                .map(user -> user.entity().getId())
+                .map(tag::setUserId))
             .flatMap(tagService::create)
             .flatMap(tag -> ServerResponse.ok().bodyValue(tag));
     }