91 lines
2 KiB
Python
91 lines
2 KiB
Python
from __future__ import annotations
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import json
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from enum import Enum
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from pathlib import Path
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from typing import Optional
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from fastapi import Depends
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from jose.constants import ALGORITHMS
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from passlib.context import CryptContext
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from pydantic import BaseModel, Field
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from sqlalchemy import create_engine
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from sqlalchemy.orm import Session, sessionmaker
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from .db.models import ORMBaseModel
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PRODUCTION_MODE = False
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# to get a string like this run:
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# openssl rand -hex 32
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SECRET_KEY = "2f7875b0d2be8a76eba8077ab4d9f8b1c749e02647e9ac9e0f909c3acbfc9856"
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ALGORITHM = "HS256"
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ACCESS_TOKEN_EXPIRE_MINUTES = 30
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CRYPT_CONTEXT = CryptContext(schemes=["bcrypt"], deprecated="auto")
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SESSION_LOCAL = None
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class DBType(Enum):
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sqlite = "sqlite"
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mysql = "mysql"
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class DBConfig(BaseModel):
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db_type: DBType = DBType.sqlite
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class JWTConfig(BaseModel):
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secret: Optional[str] = None
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hash_algorithm: str = ALGORITHMS.HS256
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expiry_minutes: int = 30
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class CryptoConfig(BaseModel):
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schemes: list[str] = ["bcrypt"]
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class BaseConfig(BaseModel):
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db: DBConfig = Field(default_factory=DBConfig)
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jwt: JWTConfig = Field(default_factory=JWTConfig)
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crypto: CryptoConfig = Field(default_factory=CryptoConfig)
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CONFIG_FILE = "tmp/config.json"
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async def has_config() -> bool:
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return Path(CONFIG_FILE).is_file()
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async def load_config() -> BaseConfig:
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try:
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with open(CONFIG_FILE, "r") as kv:
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return BaseConfig.parse_obj(json.load(kv))
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except FileNotFoundError:
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return BaseConfig()
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async def connect_db(config: BaseConfig = Depends(load_config)) -> None:
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global SESSION_LOCAL
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engine = create_engine(
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"sqlite:///./tmp/vpn.db",
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connect_args={"check_same_thread": False},
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)
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SESSION_LOCAL = sessionmaker(
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autocommit=False, autoflush=False, bind=engine)
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ORMBaseModel.metadata.create_all(bind=engine)
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async def get_db() -> Session:
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global SESSION_LOCAL
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db = SESSION_LOCAL()
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try:
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yield db
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finally:
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db.close()
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