lt
131 lines
3.8 KiB
Python
131 lines
3.8 KiB
Python
# 宇之然内容创作平台 - 安全模块
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from datetime import datetime, timedelta
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from typing import Optional
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from jose import JWTError, jwt
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from fastapi.security import OAuth2PasswordBearer
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from fastapi import Depends, HTTPException, status
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from sqlalchemy.orm import Session
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from app.models import User
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from app.database import get_db
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import bcrypt
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# JWT配置
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SECRET_KEY = "your-secret-key-here" # 生产环境应从环境变量读取
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ALGORITHM = "HS256"
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ACCESS_TOKEN_EXPIRE_MINUTES = 10080 # 7天
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/auth/login")
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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"""验证密码（使用 bcrypt 直接比较）"""
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try:
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# 确保输入为字节
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if isinstance(plain_password, str):
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plain_password = plain_password.encode('utf-8')
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if isinstance(hashed_password, str):
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hashed_password = hashed_password.encode('utf-8')
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return bcrypt.checkpw(plain_password, hashed_password)
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except Exception:
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return False
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def get_password_hash(password: str) -> str:
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"""生成密码哈希（使用 bcrypt）"""
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if isinstance(password, str):
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password = password.encode('utf-8')
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hashed = bcrypt.hashpw(password, bcrypt.gensalt())
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return hashed.decode('utf-8')
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def create_access_token(data: dict, expires_delta: Optional[timedelta] = None):
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"""创建JWT token"""
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to_encode = data.copy()
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if expires_delta:
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expire = datetime.utcnow() + expires_delta
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else:
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expire = datetime.utcnow() + timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
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to_encode.update({"exp": expire})
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encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
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return encoded_jwt
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async def get_current_user(
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token: str = Depends(oauth2_scheme),
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db: Session = Depends(get_db)
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) -> User:
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"""获取当前用户"""
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credentials_exception = HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="无效的认证凭据",
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headers={"WWW-Authenticate": "Bearer"},
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)
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try:
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payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
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username: str = payload.get("sub")
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if username is None:
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raise credentials_exception
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except JWTError:
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raise credentials_exception
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user = db.query(User).filter(User.username == username).first()
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if user is None:
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raise credentials_exception
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return user
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async def get_current_active_user(current_user: User = Depends(get_current_user)):
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"""获取活跃用户（简单检查）"""
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# 这里可以添加更多活跃性检查逻辑
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return current_user
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async def get_current_admin_user(current_user: User = Depends(get_current_user)):
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"""获取管理员用户"""
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if current_user.role != "admin":
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="权限不足，需要管理员角色"
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)
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return current_user
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def create_audit_log(
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db: Session,
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user_id: int,
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action: str,
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username: str = "",
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resource_type: str = "",
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resource_id: int = None,
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details: str = "",
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ip_address: str = "",
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user_agent: str = ""
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):
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"""创建审计日志"""
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from app.models import AuditLog, User
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# 如果未提供 username，尝试从 user_id 查询
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if not username:
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if user_id and user_id != 0:
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user = db.query(User).filter(User.id == user_id).first()
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if user:
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username = user.username
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if not username:
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username = "unknown"
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audit_log = AuditLog(
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user_id=user_id,
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username=username,
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action=action,
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resource_type=resource_type,
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resource_id=resource_id,
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details=details,
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ip_address=ip_address,
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user_agent=user_agent
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)
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db.add(audit_log)
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db.commit()
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