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72 lines
2.5 KiB
72 lines
2.5 KiB
from datetime import datetime, timedelta, timezone
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from jose import JWTError, jwt
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from passlib.context import CryptContext
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from fastapi.security import OAuth2PasswordBearer
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from fastapi import Depends,HTTPException,status
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from internal.models import TokenData,UserInDB,User
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from internal.database import execute_query
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# openssl rand -hex 32
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SECRET_KEY = "e86c54c19962d562dab09081e5a6ce0c8ef49ac9a49cdb7135aa670707bbc894"
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ALGORITHM = "HS256"
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ACCESS_TOKEN_EXPIRE_MINUTES = 30
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
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# 创建访问令牌
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def create_access_token(data: dict, expires_delta: timedelta):
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to_encode = data.copy()
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expire = datetime.now(timezone.utc) + expires_delta
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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(token: str = Depends(oauth2_scheme)):
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credentials_exception = HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Could not validate credentials",
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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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token_data = TokenData(username=username)
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except JWTError:
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raise credentials_exception
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user = get_user(username=token_data.username)
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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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# 验证用户是否为活跃用户
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async def get_current_active_user(current_user: User = Depends(get_current_user)):
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if current_user.disabled:
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raise HTTPException(status_code=400, detail="Inactive user")
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return current_user
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# 验证密码
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def verify_password(plain_password, hashed_password):
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return pwd_context.verify(plain_password, hashed_password)
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# 获取密码哈希
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def get_password_hash(password):
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return pwd_context.hash(password)
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# 从数据库获取信息
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def get_user(username: str):
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query = "SELECT * FROM users WHERE username = %s"
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result = execute_query(query, (username,), fetchall=False)
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if result:
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return UserInDB(**result)
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# 验证用户密码
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def authenticate_user(username: str, password: str):
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user = get_user(username)
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if not user:
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return False
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if not verify_password(password, user.hashed_password):
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return False
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return user
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