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78 lines
2.3 KiB
78 lines
2.3 KiB
from hashlib import pbkdf2_hmac
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from random import choices
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from string import ascii_letters
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from datetime import datetime, timedelta
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from typing import Optional, Union
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from jose import jwt
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from ..schemas.tokens import TokenData
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from ..schemas.users import UserData
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from .users import get_user_by_username
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from calculate.utils.files import Process
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def make_secret_key() -> str:
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openssl_process = Process("/usr/bin/openssl", "rand", "-hex", "32")
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secret_key = openssl_process.read()
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return secret_key.strip()
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# SECRET_KEY =\
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# "efe90242c1c221b20fc718edc3aa5da4f78147eb2f4e81e809e945bbcdf0710e"
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SECRET_KEY = make_secret_key()
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ALGORITHM = "HS256"
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async def auth_user(username: str, password: str) -> Union[UserData, bool]:
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user_row = await get_user_by_username(username)
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if not user_row:
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return False
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user = UserData(**user_row)
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if not validate_password(password, user.password):
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return False
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return user
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def decode_jwt(token: str) -> Union[TokenData, None]:
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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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expire = payload.get("exp")
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if username is None:
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return None
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return TokenData(username=username,
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expire=expire)
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def create_access_token(data: dict,
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expires_delta: Optional[timedelta] = None):
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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=15)
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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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def get_salt(length=12):
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"""Метод для получения случайной строки символов используемой как соль
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при кэшировании."""
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return "".join(choices(ascii_letters, k=length))
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def validate_password(password: str, hashed_password: str) -> bool:
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salt, db_hash = hashed_password.split("$")
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hashed = hash_password(password, salt)
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return hashed == db_hash
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def hash_password(password: str, salt: str) -> str:
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if salt is None:
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salt = get_salt()
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enc = pbkdf2_hmac("sha256", password.encode(), salt.encode(), 100_000)
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return enc.hex()
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