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[43] AOP 를 사용한 권한 체크 #45
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11 changes: 11 additions & 0 deletions
11
src/main/java/org/example/commerce_site/common/auth/PartnerCheck.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| package org.example.commerce_site.common.auth; | ||
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| import java.lang.annotation.ElementType; | ||
| import java.lang.annotation.Retention; | ||
| import java.lang.annotation.RetentionPolicy; | ||
| import java.lang.annotation.Target; | ||
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| @Target(ElementType.METHOD) | ||
| @Retention(RetentionPolicy.RUNTIME) | ||
| public @interface PartnerCheck { | ||
| } |
66 changes: 66 additions & 0 deletions
66
src/main/java/org/example/commerce_site/common/auth/RoleCheckAspect.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| package org.example.commerce_site.common.auth; | ||
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| import java.util.List; | ||
| import java.util.Map; | ||
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| import org.aspectj.lang.ProceedingJoinPoint; | ||
| import org.aspectj.lang.annotation.Around; | ||
| import org.aspectj.lang.annotation.Aspect; | ||
| import org.example.commerce_site.attribute.UserRoles; | ||
| import org.example.commerce_site.common.exception.CustomException; | ||
| import org.example.commerce_site.common.exception.ErrorCode; | ||
| import org.example.commerce_site.common.util.JwtUtil; | ||
| import org.springframework.security.oauth2.jwt.Jwt; | ||
| import org.springframework.stereotype.Component; | ||
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| import jakarta.servlet.http.HttpServletRequest; | ||
| import lombok.RequiredArgsConstructor; | ||
| import lombok.extern.slf4j.Slf4j; | ||
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| @Slf4j | ||
| @Aspect | ||
| @RequiredArgsConstructor | ||
| @Component | ||
| public class RoleCheckAspect { | ||
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| private static final String AUTHORIZATION = "Authorization"; | ||
| private static final String BEARER_PREFIX = "Bearer "; | ||
| private final HttpServletRequest httpServletRequest; | ||
| private final JwtUtil jwtUtil; | ||
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| @Around("@annotation(org.example.commerce_site.common.auth.PartnerCheck)") | ||
| public Object checkPartner(ProceedingJoinPoint joinPoint) throws Throwable { | ||
| return checkRole(joinPoint, UserRoles.ROLE_PARTNER); | ||
| } | ||
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| @Around("@annotation(org.example.commerce_site.common.auth.UserCheck)") | ||
| public Object checkUser(ProceedingJoinPoint joinPoint) throws Throwable { | ||
| return checkRole(joinPoint, UserRoles.ROLE_USER); | ||
| } | ||
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| private Object checkRole(ProceedingJoinPoint joinPoint, UserRoles requiredRole) throws Throwable { | ||
| String token = extractTokenFromRequest(); | ||
| Jwt jwt = jwtUtil.decodeToken(token); | ||
| List<String> roleList = extractAuthorities(jwt); | ||
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| if (!roleList.contains(requiredRole.name())) { | ||
| throw new CustomException(ErrorCode.ACCESS_DENIED); | ||
| } | ||
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| return joinPoint.proceed(); | ||
| } | ||
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| private String extractTokenFromRequest() { | ||
| String authorizationHeader = httpServletRequest.getHeader(AUTHORIZATION); | ||
| if (authorizationHeader == null || !authorizationHeader.startsWith(BEARER_PREFIX)) { | ||
| throw new CustomException(ErrorCode.ACCESS_DENIED); | ||
| } | ||
| return authorizationHeader.substring(BEARER_PREFIX.length()); | ||
| } | ||
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| private List<String> extractAuthorities(Jwt jwt) { | ||
| var resourceAccess = (Map<String, Object>)jwt.getClaim("resource_access"); | ||
| var roles = (Map<String, Object>)resourceAccess.get("oauth2-client-app"); | ||
| return (List<String>)roles.get("roles"); | ||
| } | ||
| } | ||
11 changes: 11 additions & 0 deletions
11
src/main/java/org/example/commerce_site/common/auth/UserCheck.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| package org.example.commerce_site.common.auth; | ||
|
|
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| import java.lang.annotation.ElementType; | ||
| import java.lang.annotation.Retention; | ||
| import java.lang.annotation.RetentionPolicy; | ||
| import java.lang.annotation.Target; | ||
|
|
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| @Target(ElementType.METHOD) | ||
| @Retention(RetentionPolicy.RUNTIME) | ||
| public @interface UserCheck { | ||
| } |
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27 changes: 27 additions & 0 deletions
27
src/main/java/org/example/commerce_site/common/util/JwtUtil.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| package org.example.commerce_site.common.util; | ||
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| import org.example.commerce_site.common.exception.CustomException; | ||
| import org.example.commerce_site.common.exception.ErrorCode; | ||
| import org.springframework.security.oauth2.jwt.Jwt; | ||
| import org.springframework.security.oauth2.jwt.JwtException; | ||
| import org.springframework.security.oauth2.jwt.NimbusJwtDecoder; | ||
| import org.springframework.stereotype.Component; | ||
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| import lombok.RequiredArgsConstructor; | ||
| import lombok.extern.slf4j.Slf4j; | ||
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| @Slf4j | ||
| @Component | ||
| @RequiredArgsConstructor | ||
| public class JwtUtil { | ||
| private final NimbusJwtDecoder jwtDecoder; | ||
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| public Jwt decodeToken(String token) { | ||
| try { | ||
| return jwtDecoder.decode(token); | ||
| } catch (JwtException e) { | ||
| log.error(e.getMessage()); | ||
| throw new CustomException(ErrorCode.JWT_DECODING_ERROR); | ||
| } | ||
| } | ||
| } |
14 changes: 14 additions & 0 deletions
14
src/main/java/org/example/commerce_site/config/JwtDecoderConfig.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| package org.example.commerce_site.config; | ||
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| import org.springframework.context.annotation.Bean; | ||
| import org.springframework.context.annotation.Configuration; | ||
| import org.springframework.security.oauth2.jwt.NimbusJwtDecoder; | ||
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| @Configuration | ||
| public class JwtDecoderConfig { | ||
| @Bean | ||
| public NimbusJwtDecoder jwtDecoder() { | ||
| String jwkSetUri = "http://localhost:9090/realms/oauth2/protocol/openid-connect/certs"; | ||
| return NimbusJwtDecoder.withJwkSetUri(jwkSetUri).build(); | ||
| } | ||
| } |
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이 request는 어디서 받아오나요?
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클라이언트가 서버에 요청을 보내면 tomcat 이 이를 수신하고 디스패쳐 서블릿으로 보냅니다.
디스패쳐 서블릿은 모든 http 요청을 가로채서 요청이 처리 되는 동안에 유효한 HttpServletRequest 객체를 만들고 스프링에서 이를 주입해줍니다.