Fix fetching user information

Author: esadakcam

server/user/src/main/java/com/continiousdisappointment/user/controller/UserController.java

@@ -4,6 +4,7 @@
 import com.continiousdisappointment.user.service.UserService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestHeader;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -14,7 +15,7 @@ public class UserController {
     private final UserService userService;
 
     @GetMapping
-    public User getUserInfo() {
-        return userService.getUserInfo();
+    public User getUserInfo(@RequestHeader("Authorization") String authorization) {
+        return userService.getUserInfo(authorization);
     }
 }

server/user/src/main/java/com/continiousdisappointment/user/service/UserService.java

@@ -1,9 +1,6 @@
 package com.continiousdisappointment.user.service;
 
 import org.springframework.http.*;
-import org.springframework.security.core.Authentication;
-import org.springframework.security.core.context.SecurityContextHolder;
-import org.springframework.security.oauth2.core.OAuth2AccessToken;
 import org.springframework.stereotype.Service;
 import org.springframework.web.client.RestTemplate;
 
@@ -14,14 +11,13 @@ public class UserService {
 
     private final RestTemplate restTemplate = new RestTemplate();
 
-    public User getUserInfo() {
+    public User getUserInfo(String authorization) {
         String url = "https://gitlab.lrz.de/api/v4/user";
-        String accessToken = getBearerToken();
-        if (accessToken == null) {
+        if (authorization == null) {
             throw new IllegalStateException("No access token found in security context");
         }
         HttpHeaders headers = new HttpHeaders();
-        headers.setBearerAuth(accessToken); // Sets Authorization: Bearer <token>
+        headers.set(HttpHeaders.AUTHORIZATION, authorization); // Sets Authorization: Bearer <token>
 
         HttpEntity<Void> requestEntity = new HttpEntity<>(headers);
 
@@ -32,17 +28,4 @@ public User getUserInfo() {
                 User.class);
         return response.getBody();
     }
-
-    private String getBearerToken() {
-        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
-        if (authentication == null) {
-            return null;
-        }
-        OAuth2AccessToken credentials = (OAuth2AccessToken) authentication.getCredentials();
-        if (credentials != null) {
-            return credentials.getTokenValue();
-        }
-        return null;
-    }
-
 }