Initial commit: SQL audit platform v0.1.0

FastAPI backend with auth, user, instance, ticket, query, dashboard APIs.
React + TypeScript frontend with mock data UI (10 pages).
SQLite + async SQLAlchemy, JWT auth, role-based access control.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

backend/app/core/config.py

@@ -0,0 +1,25 @@
+from pydantic_settings import BaseSettings
+from functools import lru_cache
+
+
+class Settings(BaseSettings):
+    ENV: str = "development"
+    DEBUG: bool = True
+
+    SECRET_KEY: str = "dev-secret-key-change-in-production"
+    ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
+    ALGORITHM: str = "HS256"
+
+    DATABASE_URL: str = "sqlite+aiosqlite:///./sqlite3.db"
+
+    ADMIN_USERNAME: str = "admin"
+    ADMIN_PASSWORD: str = "123456"
+
+    class Config:
+        env_file = ".env"
+        env_file_encoding = "utf-8"
+
+
+@lru_cache()
+def get_settings() -> Settings:
+    return Settings()

backend/app/core/database.py

@@ -0,0 +1,33 @@
+from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
+from sqlalchemy.orm import DeclarativeBase
+from typing import AsyncGenerator
+
+from app.core.config import get_settings
+
+settings = get_settings()
+
+engine = create_async_engine(
+    settings.DATABASE_URL,
+    echo=settings.DEBUG,
+)
+
+async_session = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+async def get_db() -> AsyncGenerator[AsyncSession, None]:
+    async with async_session() as session:
+        try:
+            yield session
+            await session.commit()
+        except Exception:
+            await session.rollback()
+            raise
+
+
+async def init_db() -> None:
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)

backend/app/core/security.py

@@ -0,0 +1,73 @@
+from datetime import datetime, timedelta, timezone
+from typing import Optional
+
+from jose import jwt, JWTError
+from passlib.context import CryptContext
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.core.config import get_settings
+from app.core.database import get_db
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/v1/auth/login")
+settings = get_settings()
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def hash_password(password: str) -> str:
+    return pwd_context.hash(password)
+
+
+def create_access_token(data: dict, expires_delta: Optional[timedelta] = None) -> str:
+    to_encode = data.copy()
+    expire = datetime.now(timezone.utc) + (
+        expires_delta or timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
+    )
+    to_encode.update({"exp": expire})
+    return jwt.encode(to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM)
+
+
+def decode_token(token: str) -> dict:
+    try:
+        payload = jwt.decode(token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM])
+        return payload
+    except JWTError:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="无效的认证凭据",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+
+
+async def get_current_user(
+    token: str = Depends(oauth2_scheme),
+    db: AsyncSession = Depends(get_db),
+):
+    from app.models.user import User
+
+    payload = decode_token(token)
+    user_id: Optional[int] = payload.get("sub")
+    if user_id is None:
+        raise HTTPException(status_code=401, detail="无效的认证凭据")
+
+    result = await db.execute(select(User).where(User.id == user_id))
+    user = result.scalar_one_or_none()
+    if user is None:
+        raise HTTPException(status_code=401, detail="用户不存在")
+    if not user.is_active:
+        raise HTTPException(status_code=403, detail="用户已禁用")
+    return user
+
+
+def require_role(*roles: str):
+    async def role_checker(current_user=Depends(get_current_user)):
+        if current_user.role not in roles:
+            raise HTTPException(status_code=403, detail="权限不足")
+        return current_user
+    return role_checker