순서도 mermaid로 변경

2026/07/baron-sso.md

@@ -1,43 +1,98 @@
 # baron-sso 로그인 흐름
 
+## 순서도
+
 ```mermaid
 flowchart TD
-  subgraph Backend[backend]
+  A["1. backend/main.go 실행"] --> B[".env 로드, Logger/DB/IDP 초기화"]
-    B1[main.go 실행]
+  B --> C["API 라우트 등록"]
-    B2[.env 로드]
+  C --> D["/api/v1/auth/*, /api/v1/user/me 등"]
-    B3[Logger / DB / IDP 초기화]
+
-    B4[/api/v1/auth 라우트 등록]
+  E["2. userfront/main.dart 실행"] --> F["Flutter 앱 초기화"]
-    B5[AuthHandler.PasswordLogin]
+  F --> G["GoRouter 생성"]
-    B6[AuthHandler.PhoneLogin]
+  G --> H["/ko/connect 또는 /ko/signin 진입"]
-    B7[토큰 및 redirectTo 응답]
+
-    B8[/api/v1/user/me]
+  H --> I["LoginScreen 생성"]
-    B1 --> B2 --> B3 --> B4
+  I --> J["phoneOnly 모드 여부 결정"]
-    B5 --> B7
+  J --> K["사용자 입력"]
-    B6 --> B7
+  K --> L{"로그인 타입"}
+
+  L -->|비밀번호| M["_handlePasswordLogin"]
+  L -->|전화번호 connect| N["_handlePhoneOnlyLogin"]
+
+  M --> O["AuthProxyService.loginWithPassword"]
+  N --> P["AuthProxyService.loginWithPhoneOnly"]
+
+  O --> Q["POST /api/v1/auth/password/login"]
+  P --> R["POST /api/v1/auth/phone-login"]
+
+  Q --> S["backend AuthHandler.PasswordLogin"]
+  R --> T["backend PhoneLogin"]
+
+  S --> U["IDP 인증"]
+  T --> U
+
+  U --> V{"login_challenge 있음?"}
+  V -->|예| W["Hydra/OIDC accept 처리"]
+  V -->|아니오| X["sessionJwt/token 응답"]
+
+  W --> Y["redirectTo + token 응답"]
+  X --> Z["userfront 성공 처리"]
+  Y --> Z
+
+  Z --> AA["_onLoginSuccess"]
+  AA --> AB["AuthTokenStore.setToken"]
+  AB --> AC{"redirectTo 있음?"}
+  AC -->|예| AD["webWindow.redirectTo"]
+  AC -->|아니오| AE["profile load"]
+  AE --> AF["dashboard 이동"]
+```
+  
+```mermaid
+sequenceDiagram
+  participant Browser as Browser
+  participant App as userfront (Flutter)
+  participant Store as AuthTokenStore
+  participant Proxy as AuthProxyService
+  participant API as backend /api/v1/auth
+  participant IDP as IDP/Hydra/Kratos
+
+  Browser->>App: /ko/connect 또는 /ko/signin 진입
+  App->>App: GoRouter가 LoginScreen 생성
+  App->>Browser: 로그인 UI 렌더링
+
+  Browser->>App: 로그인 정보 입력 후 제출
+  alt 비밀번호 로그인
+    App->>Proxy: loginWithPassword(loginId, password, loginChallenge?)
+    Proxy->>API: POST /api/v1/auth/password/login
+    API->>IDP: 자격 증명 검증
+    IDP-->>API: 세션 토큰/쿠키
+    API-->>Proxy: sessionJwt, token, provider, redirectTo?
+  else connect 전화번호 로그인
+    App->>Proxy: loginWithPhoneOnly(phoneNumber, loginChallenge?)
+    Proxy->>API: POST /api/v1/auth/phone-login
+    API->>IDP: 전화번호 기반 인증
+    IDP-->>API: 세션 토큰/쿠키
+    API-->>Proxy: sessionJwt, token, provider, redirectTo?
   end
 
-  subgraph Userfront[userfront]
+  Proxy-->>App: JSON 응답
-    U1[main.dart 실행]
+  App->>App: _onLoginSuccess(token, provider, redirectTo)
-    U2[GoRouter 설정]
+  App->>Store: setToken(token, provider)
-    U3[/ko/signin 또는 /ko/connect]
+  alt redirectTo 있음
-    U4[LoginScreen 표시]
+    App->>Browser: redirectTo로 이동
-    U5[_handlePasswordLogin]
+  else OIDC challenge 있음
-    U6[_handlePhoneOnlyLogin]
+    App->>Proxy: acceptOidcLogin(login_challenge, token)
-    U7[AuthProxyService 호출]
+    Proxy->>API: POST /api/v1/auth/oidc/login/accept
-    U8[_onLoginSuccess]
+    API->>IDP: login accept 처리
-    U9[AuthTokenStore.setToken]
+    IDP-->>API: OIDC redirect URL
-    U10[redirectTo 이동 또는 dashboard 이동]
+    API-->>App: redirectTo + token
-    U1 --> U2 --> U3 --> U4
+    App->>Store: setToken(...)
-    U5 --> U7 --> U8 --> U9 --> U10
+    App->>Browser: OIDC redirect
-    U6 --> U7
+  else 일반 로그인
+    App->>App: profile load
+    App->>Browser: /{locale}/dashboard 이동
   end
-
-  U4 --> U5
-  U4 --> U6
-  U7 --> B5
-  U7 --> B6
-  B7 --> U8
-  U10 --> B8
 ```
 
 ## 흐름 요약