69 lines
2.0 KiB
Python
69 lines
2.0 KiB
Python
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"""
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安全相关工具 - 使用scrypt替代bcrypt
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"""
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from datetime import datetime, timedelta
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from typing import Any, Union, Optional
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from jose import jwt
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from passlib.context import CryptContext
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from .config import settings
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# 使用scrypt替代bcrypt
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pwd_context = CryptContext(schemes=["scrypt"], deprecated="auto")
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# 获取安全配置
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security_settings = settings.security
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def create_access_token(
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subject: Union[str, Any], expires_delta: Optional[timedelta] = None
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) -> str:
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"""
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创建访问令牌
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"""
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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(
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minutes=security_settings.ACCESS_TOKEN_EXPIRE_MINUTES
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)
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to_encode = {"exp": expire, "sub": str(subject)}
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encoded_jwt = jwt.encode(
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to_encode, security_settings.SECRET_KEY, algorithm=security_settings.ALGORITHM
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)
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return encoded_jwt
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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"""
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验证密码
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"""
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# 为避免bcrypt的72字节限制，对密码进行截断处理
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if len(plain_password.encode('utf-8')) > 72:
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plain_password = plain_password.encode('utf-8')[:72].decode('utf-8', errors='ignore')
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return pwd_context.verify(plain_password, hashed_password)
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def get_password_hash(password: str) -> str:
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"""
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获取密码哈希
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"""
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# 为避免bcrypt的72字节限制，对密码进行截断处理
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if len(password.encode('utf-8')) > 72:
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password = password.encode('utf-8')[:72].decode('utf-8', errors='ignore')
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return pwd_context.hash(password)
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def verify_token(token: str) -> Optional[str]:
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"""
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验证令牌并返回用户ID
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"""
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try:
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payload = jwt.decode(
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token, security_settings.SECRET_KEY, algorithms=[security_settings.ALGORITHM]
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)
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user_id: str = payload.get("sub")
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if user_id is None:
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return None
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return user_id
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except jwt.JWTError:
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return None
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