change avatar (and other images) to relative path of s3 bucket

app/auth.py

@@ -7,6 +7,7 @@ from app.auth.deps import get_current_user
 from app.db import SessionLocal
 from app.models import User
 from app.auth.jwt import create_jwt_token, create_refresh_token, decode_token
+from app.utils.format import get_image_url
 
 router = APIRouter()
 
@@ -114,7 +115,7 @@ async def auth_callback(request: Request, code: str, state: str):
         "user": {
             "email": user.email,
             "name": user.name,
-            "avatar": user.avatar,
+            "avatar": get_image_url(user.avatar),
         }
     }
     
@@ -123,7 +124,7 @@ def me(user = Depends(get_current_user)):
     return {
         "email": user.email,
         "name": user.name,
-        "avatar": user.avatar,
+        "avatar": get_image_url(user.avatar),
     }
     
 @router.post("/refresh")

app/utils/format.py

@@ -0,0 +1,12 @@
+import os
+
+OSS_BASE_URL = os.getenv("OSS_BASE_URL", "").rstrip("/")
+
+def get_image_url(path: str) -> str:
+    if not path:
+        return ""
+    # 如果已经是完整 URL (比如 Google 原图)，直接返回
+    if path.startswith(("http://", "https://")):
+        return path
+    # 否则拼接 OSS 基础域名
+    return f"{OSS_BASE_URL}/{path}"

app/utils/s3.py

@@ -38,13 +38,12 @@ async def upload_google_avatar_to_s3(google_avatar_url: str, user_id: str) -> st
         # 在高并发下建议使用 run_in_executor，初期可以直接这样写
         bucket.put_object(object_name, image_data, headers=headers)
 
-        # 4. 生成公开访问的 URL
-        # 阿里云 OSS 标准 URL 格式: https://bucket-name.endpoint/object-name
-        # 例如: https://character-roleplay-dev-asset.oss-ap-northeast-1.aliyuncs.com/avatars/xxx/avatar.jpg
-        host = ENDPOINT.replace("https://", "")
-        oss_url = f"https://{BUCKET_NAME}.{host}/{object_name}"
-        
-        return oss_url
+        # 不直接返回公开访问的 URL，而是返回 OSS 内部相对路径，前端可以通过 CDN 或后端代理访问
+        # 这样可以支持后续更换存储服务，以及更换 OSS_BASE_URL 域名而不影响前端
+        # host = ENDPOINT.replace("https://", "")
+        # oss_url = f"https://{BUCKET_NAME}.{host}/{object_name}"
+        # return oss_url
+        return object_name
 
     except Exception as e:
         # 打印错误日志，生产环境建议使用 logger