[#3] chore: Security + JWT 관련 파일 생성

src/main/java/com/gongjakso/server/global/security/CustomUserDetailsService.java

@@ -0,0 +1,20 @@
+package com.gongjakso.server.global.security;
+
+import com.gongjakso.server.domain.member.repository.MemberRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class CustomUserDetailsService implements UserDetailsService {
+
+    private final MemberRepository memberRepository;
+
+    @Override
+    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
+        return null;
+    }
+}

src/main/java/com/gongjakso/server/global/security/jwt/JwtAccessDeniedHandler.java

@@ -0,0 +1,22 @@
+package com.gongjakso.server.global.security.jwt;
+
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import org.springframework.security.access.AccessDeniedException;
+import org.springframework.security.web.access.AccessDeniedHandler;
+import org.springframework.stereotype.Component;
+
+import java.io.IOException;
+
+@Component
+public class JwtAccessDeniedHandler implements AccessDeniedHandler {
+    @Override
+    public void handle(HttpServletRequest request, HttpServletResponse response, AccessDeniedException accessDeniedException) throws IOException, ServletException {
+        accessDeniedException.getCause().printStackTrace();
+
+        response.setContentType("application/json;charset=UTF-8");
+        response.getWriter().write(accessDeniedException.getMessage());
+        response.setStatus(HttpServletResponse.SC_FORBIDDEN);
+    }
+}

src/main/java/com/gongjakso/server/global/security/jwt/JwtAuthenticationEntryPoint.java

@@ -0,0 +1,42 @@
+package com.gongjakso.server.global.security.jwt;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import org.springframework.security.core.AuthenticationException;
+import org.springframework.security.web.AuthenticationEntryPoint;
+import org.springframework.stereotype.Component;
+
+import java.io.IOException;
+
+@Component
+public class JwtAuthenticationEntryPoint implements AuthenticationEntryPoint {
+
+    // 인증 관련 에러 처리, 401
+    @Override
+    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException) throws IOException, ServletException {
+
+        Object exception = request.getAttribute("exception");
+
+//        if (exception instanceof ErrorCode) {
+//            ErrorCode errorCode = (ErrorCode) exception;
+//            setResponse(response,errorCode);
+//
+//            return;
+//        }
+
+        response.sendError(HttpServletResponse.SC_UNAUTHORIZED, authException.getMessage());
+    }
+
+//    private void setResponse(HttpServletResponse response, ErrorCode errorCode) throws IOException{
+//        response.setContentType("application/json;charset=UTF-8");
+//        response.setStatus(errorCode.getHttpStatus().value());
+//
+//        ApplicationErrorResponse errorResponse = new ApplicationErrorResponse(errorCode);
+//        ObjectMapper objectMapper = new ObjectMapper();
+//        String errorJson = objectMapper.writeValueAsString(errorResponse);
+//
+//        response.getWriter().write(errorJson);
+//    }
+}

src/main/java/com/gongjakso/server/global/jwt/TokenProvider.java → src/main/java/com/gongjakso/server/global/security/jwt/TokenProvider.java

@@ -1,4 +1,4 @@
-package com.gongjakso.server.global.jwt;
+package com.gongjakso.server.global.security.jwt;
 
 import org.springframework.stereotype.Component;