155 lines
6.6 KiB
Python
155 lines
6.6 KiB
Python
"""配置加载 (T6.1).
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所有运行时配置通过环境变量读取。提供默认值用于开发环境，但启动时
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必须输出 WARN 提示生产环境必须显式覆盖。
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"""
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from __future__ import annotations
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import os
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import secrets
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import string
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from dataclasses import dataclass
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from fastapi import Request
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# 安全占位密钥（仅 dev 环境）。生产必须显式设置 GAOKAO_JWT_SECRET。
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_DEV_JWT_SECRET = "dev-only-do-not-use-in-prod-please-override-via-env"
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_DEFAULT_ADMIN_PASSWORD = "admin123"
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_MIN_ADMIN_PASSWORD_LENGTH = 10
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@dataclass(frozen=True)
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class Settings:
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"""运行时配置（不可变）。"""
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env: str
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db_path: str
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orders_db_path: str # T6.2 — 订单数据 (data.orders.* 写入位置)
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share_db_path: str # T7.5 — 短链接 SQLite
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share_report_dir: str # T7.5 — report_id -> JSON 报告目录
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payment_provider: str # mock|alipay
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payment_base_url: str
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payment_webhook_secret: str
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payment_notify_url: str
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payment_return_url: str
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payment_app_id: str
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payment_private_key_path: str
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payment_alipay_public_key_path: str
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jwt_secret: str
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jwt_algorithm: str
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jwt_expire_minutes: int
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default_admin_username: str
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default_admin_password: str
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def load_settings() -> Settings:
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"""从环境变量加载配置。
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- GAOKAO_ENV : dev|prod，默认 dev
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- GAOKAO_DB_PATH : 管理后台 SQLite 文件路径，默认 data/orders/admin.db
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- GAOKAO_ORDERS_DB_PATH : 订单 DB 路径 (与 data.orders.* 共享),默认 data/orders.db
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- GAOKAO_SHARE_DB_PATH : 分享短链接 DB 路径，默认 data/share/short_links.db
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- GAOKAO_SHARE_REPORT_DIR : 分享报告 JSON 目录，默认 data/share/reports
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- GAOKAO_PAYMENT_PROVIDER : 支付 provider，默认 mock
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- GAOKAO_PAYMENT_BASE_URL : 支付相关回跳基础 URL，默认 http://testserver
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- GAOKAO_PAYMENT_WEBHOOK_SECRET : 支付 webhook 独立签名密钥，默认 dev mock secret
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- GAOKAO_PAYMENT_NOTIFY_URL : 真实 provider 异步通知地址，默认空
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- GAOKAO_PAYMENT_RETURN_URL : 真实 provider 浏览器返回地址，默认空
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- GAOKAO_PAYMENT_APP_ID : 真实 provider 应用 ID，默认空
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- GAOKAO_PAYMENT_PRIVATE_KEY_PATH : 真实 provider 私钥路径，默认空
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- GAOKAO_PAYMENT_ALIPAY_PUBLIC_KEY_PATH : 支付宝公钥路径，默认空
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- GAOKAO_JWT_SECRET : HS256 密钥，默认 dev 占位（启动日志 WARN）
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- GAOKAO_JWT_EXP_MIN : JWT 过期时间（分钟），默认 60
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- GAOKAO_ADMIN_USER : 默认管理员用户名，默认 admin
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- GAOKAO_ADMIN_PASS : 默认管理员密码，默认 admin123（仅本地开发占位）
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Returns:
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Settings: 不可变配置实例
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"""
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return Settings(
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env=os.getenv("GAOKAO_ENV", "dev"),
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db_path=os.getenv("GAOKAO_DB_PATH", "data/orders/admin.db"),
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orders_db_path=os.getenv("GAOKAO_ORDERS_DB_PATH", "data/orders.db"),
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share_db_path=os.getenv("GAOKAO_SHARE_DB_PATH", "data/share/short_links.db"),
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share_report_dir=os.getenv("GAOKAO_SHARE_REPORT_DIR", "data/share/reports"),
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payment_provider=os.getenv("GAOKAO_PAYMENT_PROVIDER", "mock"),
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payment_base_url=os.getenv("GAOKAO_PAYMENT_BASE_URL", "http://testserver"),
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payment_webhook_secret=os.getenv(
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"GAOKAO_PAYMENT_WEBHOOK_SECRET", "dev-mock-payment-secret"
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),
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payment_notify_url=os.getenv("GAOKAO_PAYMENT_NOTIFY_URL", ""),
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payment_return_url=os.getenv("GAOKAO_PAYMENT_RETURN_URL", ""),
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payment_app_id=os.getenv("GAOKAO_PAYMENT_APP_ID", ""),
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payment_private_key_path=os.getenv("GAOKAO_PAYMENT_PRIVATE_KEY_PATH", ""),
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payment_alipay_public_key_path=os.getenv(
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"GAOKAO_PAYMENT_ALIPAY_PUBLIC_KEY_PATH", ""
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),
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jwt_secret=os.getenv("GAOKAO_JWT_SECRET", _DEV_JWT_SECRET),
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jwt_algorithm=os.getenv("GAOKAO_JWT_ALGORITHM", "HS256"),
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jwt_expire_minutes=int(os.getenv("GAOKAO_JWT_EXP_MIN", "60")),
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default_admin_username=os.getenv("GAOKAO_ADMIN_USER", "admin"),
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default_admin_password=os.getenv("GAOKAO_ADMIN_PASS", _DEFAULT_ADMIN_PASSWORD),
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)
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def is_jwt_secret_secure(settings: Settings) -> tuple:
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"""判断 JWT 密钥是否满足最低安全门槛。
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Returns:
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(is_secure, reason) : 不满足时给出原因字符串
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"""
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secret = settings.jwt_secret
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if settings.env == "prod":
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if secret == _DEV_JWT_SECRET:
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return False, "生产环境禁止使用 dev 占位密钥"
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if len(secret) < 32:
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return False, "生产环境 JWT 密钥长度必须 >= 32 (当前 {})".format(
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len(secret)
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)
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if secret == _DEV_JWT_SECRET and settings.env == "dev":
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return False, "dev 环境使用占位密钥（仅本地开发可接受）"
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if len(secret) < 32:
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return False, "JWT 密钥长度必须 >= 32 (当前 {})".format(len(secret))
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return True, "ok"
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def is_default_admin_password_secure(settings: Settings) -> tuple[bool, str]:
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"""判断默认管理员密码是否满足最低安全门槛。"""
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password = settings.default_admin_password
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if len(password) < _MIN_ADMIN_PASSWORD_LENGTH:
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return False, (
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f"默认管理员密码长度必须 >= {_MIN_ADMIN_PASSWORD_LENGTH} (当前 {len(password)})"
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)
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if settings.env == "prod" and password == _DEFAULT_ADMIN_PASSWORD:
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return False, "生产环境禁止使用默认管理员密码 admin123"
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if settings.env == "prod":
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classes = sum((
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any(ch.islower() for ch in password),
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any(ch.isupper() for ch in password),
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any(ch.isdigit() for ch in password),
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any(ch in string.punctuation for ch in password),
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))
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if classes < 3:
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return False, "生产环境默认管理员密码至少覆盖 3 类字符（大小写/数字/符号）"
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if settings.env == "dev" and password == _DEFAULT_ADMIN_PASSWORD:
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return False, "dev 环境仍在使用默认管理员密码（仅本地临时开发可接受）"
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return True, "ok"
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def generate_secure_secret() -> str:
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"""生成 32-byte 十六进制密钥（用于初始化文档示例）。"""
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return secrets.token_hex(32)
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def get_settings_dep(request: Request) -> Settings:
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"""FastAPI 依赖:从 app.state 取已加载的 Settings。
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与 admin.auth.get_settings 重复,但放在 config 里便于其他路由直接引用。
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"""
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settings = getattr(request.app.state, "settings", None)
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if settings is None: # pragma: no cover - 兜底
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settings = load_settings()
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return settings
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