Files
disknext/utils/password/pwd.py
于小丘 209cb24ab4 feat: add models for physical files, policies, and user management
- Implement PhysicalFile model to manage physical file references and reference counting.
- Create Policy model with associated options and group links for storage policies.
- Introduce Redeem and Report models for handling redeem codes and reports.
- Add Settings model for site configuration and user settings management.
- Develop Share model for sharing objects with unique codes and associated metadata.
- Implement SourceLink model for managing download links associated with objects.
- Create StoragePack model for managing user storage packages.
- Add Tag model for user-defined tags with manual and automatic types.
- Implement Task model for managing background tasks with status tracking.
- Develop User model with comprehensive user management features including authentication.
- Introduce UserAuthn model for managing WebAuthn credentials.
- Create WebDAV model for managing WebDAV accounts associated with users.
2026-02-10 19:07:48 +08:00

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import secrets
from typing import Literal
from loguru import logger
from argon2 import PasswordHasher
from argon2.exceptions import VerifyMismatchError
from enum import StrEnum
import pyotp
from itsdangerous import URLSafeTimedSerializer
from pydantic import BaseModel, Field
from utils.JWT import SECRET_KEY
from utils.conf import appmeta
# FIRST RECOMMENDED option per RFC 9106.
_ph_lowmem = PasswordHasher(
salt_len=16,
hash_len=32,
time_cost=3,
memory_cost=65536, # 64 MiB
parallelism=4,
)
# SECOND RECOMMENDED option per RFC 9106.
_ph_highmem = PasswordHasher(
salt_len=16,
hash_len=32,
time_cost=1,
memory_cost=2097152, # 2 GiB
parallelism=4,
)
class PasswordStatus(StrEnum):
"""密码校验状态枚举"""
VALID = "valid"
"""密码校验通过"""
INVALID = "invalid"
"""密码校验失败"""
EXPIRED = "expired"
"""密码哈希已过时,建议重新哈希"""
class TwoFactorBase(BaseModel):
"""两步验证请求 DTO"""
setup_token: str
"""用于验证的令牌"""
class TwoFactorResponse(TwoFactorBase):
"""两步验证-请求启用时的响应 DTO"""
uri: str
"""用于生成二维码的 URI"""
class TwoFactorVerifyRequest(TwoFactorBase):
"""两步验证-验证请求 DTO"""
code: int = Field(..., ge=100000, le=999999)
"""6 位验证码"""
class Password:
"""密码处理工具类,包含密码生成、哈希和验证功能"""
@staticmethod
def generate(
length: int = 8,
url_safe: bool = False
) -> str:
"""
生成指定长度的随机密码。
:param length: 密码长度
:type length: int
:param url_safe: 是否生成 URL 安全的密码
:type url_safe: bool
:return: 随机密码
:rtype: str
"""
if url_safe:
return secrets.token_urlsafe(length)
else:
return secrets.token_hex(length)
@staticmethod
def generate_hex(
length: int = 8
) -> bytes:
return secrets.token_bytes(length)
@staticmethod
def hash(
password: str
) -> str:
"""
使用 Argon2 生成密码的哈希值。
返回的哈希字符串已经包含了所有需要验证的信息(盐、算法参数等)。
:param password: 需要哈希的原始密码
:return: Argon2 哈希字符串
"""
return _ph_lowmem.hash(password)
@staticmethod
def verify(
hash: str,
password: str
) -> PasswordStatus:
"""
验证存储的 Argon2 哈希值与用户提供的密码是否匹配。
:param hash: 数据库中存储的 Argon2 哈希字符串
:param password: 用户本次提供的密码
:return: 如果密码匹配返回 True, 否则返回 False
"""
try:
_ph_lowmem.verify(hash, password)
# 检查哈希参数是否已过时
if _ph_lowmem.check_needs_rehash(hash):
logger.warning("密码哈希参数已过时,建议重新哈希并更新。")
return PasswordStatus.EXPIRED
return PasswordStatus.VALID
except VerifyMismatchError:
return PasswordStatus.INVALID
@staticmethod
async def generate_totp(
*args, **kwargs
) -> TwoFactorResponse:
"""
生成 TOTP 密钥和对应的 URI用于两步验证。
所有的参数将会给到 `pyotp.totp.TOTP`
:return: 包含 TOTP 密钥和 URI 的元组
"""
serializer = URLSafeTimedSerializer(SECRET_KEY)
secret = pyotp.random_base32()
setup_token = serializer.dumps(
secret,
salt="2fa-setup-salt"
)
otp_uri = pyotp.totp.TOTP(secret, *args, **kwargs).provisioning_uri(
issuer_name=appmeta.APP_NAME
)
return TwoFactorResponse(
uri=otp_uri,
setup_token=setup_token
)
@staticmethod
def verify_totp(
secret: str,
code: int,
*args, **kwargs
) -> PasswordStatus:
"""
验证 TOTP 验证码。
:param secret: TOTP 密钥Base32 编码)
:param code: 用户输入的 6 位验证码
:param args: 传入 `totp.verify` 的参数
:param kwargs: 传入 `totp.verify` 的参数
:return: 验证是否成功
"""
totp = pyotp.TOTP(secret)
if totp.verify(otp=str(code), *args, **kwargs):
return PasswordStatus.VALID
else:
return PasswordStatus.INVALID