refactor(userpage): move APIs into g0v0 private API

app/router/private/user.py

@@ -0,0 +1,130 @@
+from typing import Annotated
+
+from app.auth import validate_username
+from app.config import settings
+from app.database import User
+from app.database.events import Event, EventType
+from app.dependencies.database import Database
+from app.dependencies.user import ClientUser
+from app.models.user import Page
+from app.models.userpage import (
+    UpdateUserpageRequest,
+    UpdateUserpageResponse,
+    UserpageError,
+    ValidateBBCodeRequest,
+    ValidateBBCodeResponse,
+)
+from app.service.bbcode_service import bbcode_service
+from app.utils import utcnow
+
+from .router import router
+
+from fastapi import Body, HTTPException
+from sqlmodel import exists, select
+
+
+@router.post("/rename", name="修改用户名", tags=["用户", "g0v0 API"])
+async def user_rename(
+    session: Database,
+    new_name: Annotated[str, Body(..., description="新的用户名")],
+    current_user: ClientUser,
+):
+    """修改用户名
+
+    为指定用户修改用户名，并将原用户名添加到历史用户名列表中
+
+    错误情况:
+    - 404: 找不到指定用户
+    - 409: 新用户名已被占用
+
+    返回:
+    - 成功: None
+    """
+    samename_user = (await session.exec(select(exists()).where(User.username == new_name))).first()
+    if samename_user:
+        raise HTTPException(409, "Username Exisits")
+    errors = validate_username(new_name)
+    if errors:
+        raise HTTPException(403, "\n".join(errors))
+    previous_username = []
+    previous_username.extend(current_user.previous_usernames)
+    previous_username.append(current_user.username)
+    current_user.username = new_name
+    current_user.previous_usernames = previous_username
+    rename_event = Event(
+        created_at=utcnow(),
+        type=EventType.USERNAME_CHANGE,
+        user_id=current_user.id,
+        user=current_user,
+    )
+    rename_event.event_payload["user"] = {
+        "username": new_name,
+        "url": settings.web_url + "users/" + str(current_user.id),
+        "previous_username": current_user.previous_usernames[-1],
+    }
+    session.add(rename_event)
+    await session.commit()
+    return None
+
+
+@router.put(
+    "/user/page",
+    response_model=UpdateUserpageResponse,
+    name="更新用户页面",
+    description="更新指定用户的个人页面内容（支持BBCode）。匹配官方osu-web API格式。",
+    tags=["用户", "g0v0 API"],
+)
+async def update_userpage(
+    request: UpdateUserpageRequest,
+    session: Database,
+    current_user: ClientUser,
+):
+    """更新用户页面内容"""
+
+    try:
+        # 处理BBCode内容
+        processed_page = bbcode_service.process_userpage_content(request.body)
+
+        # 更新数据库 - 直接更新用户对象
+        current_user.page = Page(html=processed_page["html"], raw=processed_page["raw"])
+        session.add(current_user)
+        await session.commit()
+        await session.refresh(current_user)
+
+        # 返回官方格式的响应：只包含html
+        return UpdateUserpageResponse(html=processed_page["html"])
+
+    except UserpageError as e:
+        # 使用官方格式的错误响应：{'error': message}
+        raise HTTPException(status_code=422, detail={"error": e.message})
+    except Exception:
+        raise HTTPException(status_code=500, detail={"error": "Failed to update user page"})
+
+
+@router.post(
+    "/user/validate-bbcode",
+    response_model=ValidateBBCodeResponse,
+    name="验证BBCode",
+    description="验证BBCode语法并返回预览。",
+    tags=["用户", "g0v0 API"],
+)
+async def validate_bbcode(
+    request: ValidateBBCodeRequest,
+):
+    """验证BBCode语法"""
+    try:
+        # 验证BBCode语法
+        errors = bbcode_service.validate_bbcode(request.content)
+
+        # 生成预览（如果没有严重错误）
+        if len(errors) == 0:
+            preview = bbcode_service.process_userpage_content(request.content)
+        else:
+            preview = {"raw": request.content, "html": ""}
+
+        return ValidateBBCodeResponse(valid=len(errors) == 0, errors=errors, preview=preview)
+
+    except UserpageError as e:
+        return ValidateBBCodeResponse(valid=False, errors=[e.message], preview={"raw": request.content, "html": ""})
+    except Exception:
+        raise HTTPException(status_code=500, detail={"error": "Failed to validate BBCode"})