✨ Feat: [#101] 비밀번호 재설정 기능 구현 완료

codes/services.py

@@ -22,6 +22,10 @@ from users.models import User
 
 from projects.models import Project, ProjectTeamList
 
+
+from datetime import timedelta
+from rest_framework_simplejwt.tokens import AccessToken
+
 # from .schemas import send_sms_post_schema  # Swagger나 drf-spectacular 등에 사용되는 데코레이터
 
 INVITE_CHOICE_USE_TYPE ={
@@ -29,6 +33,8 @@ INVITE_CHOICE_USE_TYPE ={
     'h': InviteCodeUseType.HACKATHON
 }
 
+PASSWORD_RESET_TOKEN_TTL_MINUTES = 5
+
 class CertificateService:
     @staticmethod
     def send(code, identifier):
@@ -131,3 +137,15 @@ class ProjectInviteService(InviteService):
         return ProjectTeamList.objects.create(user=invitee, project=work)
         
 
+class PasswordResetTokenService:
+    @staticmethod
+    def issue_temp_access_token(*, user_id: str, identifier: str, use_type: str) -> str:
+        token = AccessToken()
+        token.set_exp(lifetime=timedelta(minutes=PASSWORD_RESET_TOKEN_TTL_MINUTES))
+
+        token["purpose"] = "password_reset"
+        token["user_id"] = str(user_id)
+        token["identifier"] = identifier
+        token["use_type"] = use_type
+
+        return str(token)

codes/views.py

@@ -56,18 +56,43 @@ class CertificationAPIView(APIView):
     @transaction.atomic
     def patch(self, request):
         use_type = request.query_params.get("type")
+        purpose = request.query_params.get("purpose")
+
         if use_type not in CERTIFICATE_SERVICE_USE_TYPE:
             return Response({"message": "Not defined use_type"}, status=status.HTTP_400_BAD_REQUEST)
+        
         serv = CERTIFICATE_SERVICE_USE_TYPE[use_type]
         code = request.data.get('code', None)
         if not code:
             return Response({"message": "no code"}, status=status.HTTP_400_BAD_REQUEST)
+        
         serializer = CertificateCodeSerializer(data=request.data)
-        if serializer.is_valid():
+
-            if serv.check_code(use_type, code, serializer.validated_data['identifier']):
+        if not serializer.is_valid():
-                return Response({"message": "certificated successfully"}, status=status.HTTP_200_OK)
+            return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
-            return Response({"message": "wrong code, please retry"}, status=status.HTTP_400_BAD_REQUEST)
+
-        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+        identifier = serializer.validated_data["identifier"]
+
+        if not serv.check_code(use_type, code, identifier):
+            return Response({"message": "wrong code or already used code, please retry send code"}, status=status.HTTP_400_BAD_REQUEST)
+        
+        if purpose == "password_reset":
+            user = User.objects.filter(phone=identifier).first()
+            if not user:
+                return Response({"message": "user not found"}, status=status.HTTP_404_NOT_FOUND)
+
+            temp_access_token = PasswordResetTokenService.issue_temp_access_token(
+                user_id=user.id,
+                identifier=identifier,
+                use_type=use_type,
+            )
+
+            return Response(
+                {"message": "certificated successfully", "temp_access_token": temp_access_token},
+                status=status.HTTP_200_OK
+            )
+
+        return Response({"message": "certificated successfully"}, status=status.HTTP_200_OK)
 
 class InviteByLinkAPIView(APIView):
     

users/permissions.py

@@ -9,3 +9,13 @@ class IsGithubLinked(BasePermission):
             if token := getattr(token_obj, 'access_token', None):
                 return True
         return False
+    
+class IsPasswordResetToken(BasePermission):
+    message = "Password reset token required."
+
+    def has_permission(self, request, view):
+        token = getattr(request, "auth", None)
+        if not token:
+            return False
+
+        return token.get("purpose") == "password_reset"

users/urls.py

@@ -24,4 +24,5 @@ urlpatterns = [
     path('mypage/my-info/', MyPageMemberInfoAPIView.as_view()),
     path("github/", include(router.urls)),
     path("portfolio/", UserInfoAPIView.as_view()),
+    path("reset-password/", PasswordResetAPIView.as_view()),
 ]

users/views.py

@@ -40,6 +40,7 @@ from github import Github, GithubException
 
 CACHE_TIMEOUT = 60 * 60
 PAGE_SIZE = 20
+PASSWORD_RESET_USED_JTI_TTL = 60 * 10
 
 class RefreshAPIView(APIView):
     permission_classes = [AllowAny]
@@ -388,6 +389,48 @@ class LoginAPIView(APIView):
         else: # id, 비번 둘 중 하나가 틀렸을 때
             return Response({"message": "아이디 혹은 비밀번호가 맞지 않습니다."}, status=status.HTTP_400_BAD_REQUEST)
 
+
+class PasswordResetAPIView(APIView):
+    permission_classes = [IsAuthenticated, IsPasswordResetToken]
+
+    # 비밀번호 재설정
+    @transaction.atomic
+    def post(self, request):
+        new_password = request.data.get("new_password")
+
+        if not new_password:
+            return Response({"message": "no new_password", "is_new_password": None})
+
+        token = request.auth
+        jti = token.get("jti")
+        user_id = token.get("user_id")
+
+        if not jti or not user_id:
+            return Response({"message": "invalid token"}, status=status.HTTP_400_BAD_REQUEST)
+
+        # 1회성 방지
+        used_key = f"pwreset-used:{jti}"
+        if cache.get(used_key):
+            return Response({"message": "token already used"}, status=status.HTTP_400_BAD_REQUEST)
+        cache.set(used_key, True, timeout=PASSWORD_RESET_USED_JTI_TTL)
+
+        user = get_object_or_404(User, id=user_id)
+
+        user.set_password(new_password)
+        user.save(update_fields=["password"])
+
+        # 쿠키에 있는 리프레시 토큰 무효화
+        try:
+            refresh = request.COOKIES.get('refresh')
+            if refresh:
+                refresh_token = RefreshToken(refresh)
+                refresh_token.blacklist()
+        except TokenError as e:
+            pass
+
+        return Response({"message": "password updated successfully"}, status=status.HTTP_200_OK)
+
+
 class CheckUserFieldDuplicateAPIView(APIView):
     permission_classes = [AllowAny]
     # 유저 필드 중복 확인