From 78dcd9b8e0164543cb284f2d7c36cb7d2c4d3c1a Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <kjsoo1901@gmail.com>
Date: Thu, 30 Nov 2023 18:35:57 +0900
Subject: [PATCH 1/2] =?UTF-8?q?fix:=20=EB=A7=8C=EB=A3=8C=EB=90=9C=20?=
 =?UTF-8?q?=EC=95=A1=EC=84=B8=EC=8A=A4=20=ED=86=A0=ED=81=B0=EC=9C=BC?=
 =?UTF-8?q?=EB=A1=9C=20=EC=9A=94=EC=B2=AD=20=EC=8B=9C=20=EC=84=B1=EA=B3=B5?=
 =?UTF-8?q?=ED=95=98=EB=8F=84=EB=A1=9D=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- 액세스 토큰이 아니라 헤더에서 사용자 아이디를 추출함으로써 만료된 액세스 토큰으로 요청 시 성공하도록 수정
---
 BE/src/auth/auth.controller.ts |  7 ++-----
 BE/src/auth/auth.service.ts    | 16 +++++++++++-----
 2 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/BE/src/auth/auth.controller.ts b/BE/src/auth/auth.controller.ts
index 31a556b..7aa0041 100644
--- a/BE/src/auth/auth.controller.ts
+++ b/BE/src/auth/auth.controller.ts
@@ -49,10 +49,7 @@ export class AuthController {
   @Post("/reissue")
   @UseGuards(ExpiredOrNotGuard)
   @HttpCode(201)
-  async reissueAccessToken(
-    @GetUser() user: User,
-    @Req() request: Request,
-  ): Promise<AccessTokenDto> {
-    return await this.authService.reissueAccessToken(user, request);
+  async reissueAccessToken(@Req() request: Request): Promise<AccessTokenDto> {
+    return await this.authService.reissueAccessToken(request);
   }
 }
diff --git a/BE/src/auth/auth.service.ts b/BE/src/auth/auth.service.ts
index fabb852..eb29c68 100644
--- a/BE/src/auth/auth.service.ts
+++ b/BE/src/auth/auth.service.ts
@@ -9,6 +9,7 @@ import { User } from "./users.entity";
 import { Redis } from "ioredis";
 import { InjectRedis } from "@liaoliaots/nestjs-redis";
 import { Request } from "express";
+import * as jwt from "jsonwebtoken";
 
 @Injectable()
 export class AuthService {
@@ -59,11 +60,15 @@ export class AuthService {
     await this.redisClient.del(user.userId);
   }
 
-  async reissueAccessToken(
-    user: User,
-    request: Request,
-  ): Promise<AccessTokenDto> {
-    const userId = user.userId;
+  async reissueAccessToken(request: Request): Promise<AccessTokenDto> {
+    const expiredAccessToken = request.headers.authorization.split(" ")[1];
+
+    // 만료된 액세스 토큰을 직접 디코딩
+    const base64Payload = expiredAccessToken.split(".")[1];
+    const payload = Buffer.from(base64Payload, "base64");
+    const expiredResult = JSON.parse(payload.toString());
+
+    const userId = expiredResult.userId;
     const accessTokenPayload = { userId };
     const accessToken = await this.jwtService.sign(accessTokenPayload, {
       expiresIn: "1h",
@@ -81,5 +86,6 @@ export class AuthService {
     await this.redisClient.set(userId, refreshToken, "EX", 86400);
 
     return new AccessTokenDto(accessToken);
+    return new AccessTokenDto("123151");
   }
 }

From 9af5a24ad94910208e51a04081428c1193ffb51f Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <kjsoo1901@gmail.com>
Date: Thu, 30 Nov 2023 18:39:03 +0900
Subject: [PATCH 2/2] =?UTF-8?q?style:=20=EC=98=A4=ED=83=80=20=EC=88=98?=
 =?UTF-8?q?=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- 오타 수정
---
 BE/src/auth/auth.service.ts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/BE/src/auth/auth.service.ts b/BE/src/auth/auth.service.ts
index eb29c68..e5b20e5 100644
--- a/BE/src/auth/auth.service.ts
+++ b/BE/src/auth/auth.service.ts
@@ -86,6 +86,5 @@ export class AuthService {
     await this.redisClient.set(userId, refreshToken, "EX", 86400);
 
     return new AccessTokenDto(accessToken);
-    return new AccessTokenDto("123151");
   }
 }