Files
webhook/config.py
zhilv f82363f45f ♻️ refactor(command): 配置系统从 SQLite 迁移至 YAML 并修复白名单失效
- 用 CommandConfig dataclass 单例替代模块级变量,解决 from import 造成的本地绑定不随 global 更新的 bug
- 删除 db.py,改用 settings.yaml 存储动态配置,首次启动自动创建并合并 .env 默认值
- 新增文件轮询 watcher(2 秒),检测 YAML 变更自动热重载
- 管理界面 API 改为直接读写 YAML,即时生效
- 依赖 aiosqlite 替换为 pyyaml
2026-05-03 18:23:29 +08:00

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"""项目配置:静态配置从环境变量读取,命令监听配置通过 settings.yaml 动态管理。"""
import logging
import os
import uuid
from dataclasses import dataclass
from pathlib import Path
import yaml
from dotenv import load_dotenv
# 加载 .env 文件(优先从插件目录查找)
load_dotenv(Path(__file__).parent / ".env")
logger = logging.getLogger("webhook-plugin.config")
# ── 静态配置(环境变量,运行时不变)────────────────────────────
WEBHOOK_API_KEY: str = os.environ.get("WEBHOOK_API_KEY", "") or uuid.uuid4().hex
HOST: str = os.environ.get("WEBHOOK_HOST", "0.0.0.0")
try:
PORT: int = int(os.environ.get("WEBHOOK_PORT", "8081"))
except ValueError:
PORT = 8081
UPLOAD_DIR: Path = Path(os.environ.get("UPLOAD_DIR", str(Path(__file__).parent / "uploads")))
MAX_UPLOAD_SIZE: int = int(os.environ.get("MAX_UPLOAD_SIZE", str(20 * 1024 * 1024)))
ALLOWED_EXTENSIONS: set[str] = set(
filter(None, os.environ.get("ALLOWED_EXTENSIONS", "").lower().split(","))
)
QQ_API_TIMEOUT: float = float(os.environ.get("QQ_API_TIMEOUT", "10"))
QQ_API_MAX_RETRIES: int = int(os.environ.get("QQ_API_MAX_RETRIES", "2"))
# ── YAML 文件路径 ────────────────────────────────────────────
SETTINGS_YAML_PATH: Path = Path(__file__).parent / "settings.yaml"
# ── 动态配置 dataclass ──────────────────────────────────────
@dataclass
class CommandConfig:
"""命令监听动态配置,通过 settings.yaml 热重载。"""
prefix: str = "#"
length_min: int = 2
length_max: int = 4
scope: str = "all" # all / group / private
list_mode: str = "allow" # allow / deny
allowed_groups: frozenset[str] = frozenset()
denied_groups: frozenset[str] = frozenset()
allowed_users: frozenset[str] = frozenset()
denied_users: frozenset[str] = frozenset()
at_sender: bool = True
callback_url: str = ""
callback_timeout: int = 180
# 全局单例 —— 所有消费者通过 config.command.xxx 访问,避免 stale import 问题
command = CommandConfig()
# ── 环境变量默认值YAML 缺失 key 时的回退)────────────────────
_ENV_DEFAULTS: dict = {
"prefix": os.environ.get("COMMAND_PREFIX", "#"),
"length_min": int(os.environ.get("COMMAND_LENGTH_MIN", "2")),
"length_max": int(os.environ.get("COMMAND_LENGTH_MAX", "4")),
"scope": os.environ.get("COMMAND_SCOPE", "all"),
"list_mode": os.environ.get("COMMAND_LIST_MODE", "allow"),
"allowed_groups": os.environ.get("COMMAND_ALLOWED_GROUPS", ""),
"denied_groups": os.environ.get("COMMAND_DENIED_GROUPS", ""),
"allowed_users": os.environ.get("COMMAND_ALLOWED_USERS", ""),
"denied_users": os.environ.get("COMMAND_DENIED_USERS", ""),
"at_sender": os.environ.get("COMMAND_AT_SENDER", "true").lower() in ("true", "1", "yes"),
"callback_url": os.environ.get("COMMAND_CALLBACK_URL", ""),
"callback_timeout": int(os.environ.get("COMMAND_CALLBACK_TIMEOUT", "180")),
}
# ── YAML I/O ─────────────────────────────────────────────────
_YAML_HEADER = (
"# settings.yaml - 命令监听动态配置\n"
"# 可通过后台管理界面修改,也可手动编辑(自动热重载)\n\n"
)
def _yaml_defaults() -> dict:
"""返回默认 YAML 结构(首次启动时写入)。"""
return {
"command": {
"prefix": "#",
"length_min": 2,
"length_max": 4,
"scope": "all",
"list_mode": "allow",
"allowed_groups": [],
"denied_groups": [],
"allowed_users": [],
"denied_users": [],
"at_sender": True,
"callback_url": "",
"callback_timeout": 180,
}
}
def load_yaml() -> dict:
"""读取 settings.yaml文件不存在时返回空字典。"""
if not SETTINGS_YAML_PATH.exists():
return {}
with open(SETTINGS_YAML_PATH, "r", encoding="utf-8") as f:
data = yaml.safe_load(f)
return data if isinstance(data, dict) else {}
def save_yaml(data: dict) -> None:
"""将配置写入 settings.yaml。"""
with open(SETTINGS_YAML_PATH, "w", encoding="utf-8") as f:
f.write(_YAML_HEADER)
yaml.dump(data, f, default_flow_style=False, allow_unicode=True, sort_keys=False)
def ensure_settings_yaml() -> None:
"""首次启动时创建 settings.yaml合并环境变量覆盖。"""
if SETTINGS_YAML_PATH.exists():
return
data = _yaml_defaults()
# 用环境变量覆盖默认值
env_map = {
"prefix": ("COMMAND_PREFIX", str),
"length_min": ("COMMAND_LENGTH_MIN", int),
"length_max": ("COMMAND_LENGTH_MAX", int),
"scope": ("COMMAND_SCOPE", str),
"list_mode": ("COMMAND_LIST_MODE", str),
"allowed_groups": ("COMMAND_ALLOWED_GROUPS", "csv_list"),
"denied_groups": ("COMMAND_DENIED_GROUPS", "csv_list"),
"allowed_users": ("COMMAND_ALLOWED_USERS", "csv_list"),
"denied_users": ("COMMAND_DENIED_USERS", "csv_list"),
"at_sender": ("COMMAND_AT_SENDER", "bool"),
"callback_url": ("COMMAND_CALLBACK_URL", str),
"callback_timeout": ("COMMAND_CALLBACK_TIMEOUT", int),
}
for key, (env_name, conv) in env_map.items():
env_val = os.environ.get(env_name)
if env_val is not None:
if conv == "csv_list":
data["command"][key] = [v.strip() for v in env_val.split(",") if v.strip()]
elif conv == "bool":
data["command"][key] = env_val.lower() in ("true", "1", "yes")
else:
data["command"][key] = conv(env_val)
save_yaml(data)
logger.info("Created settings.yaml with defaults (env-var overrides applied)")
# ── 将 YAML 数据应用到全局 command 对象 ───────────────────────
def _apply_yaml_to_command(data: dict) -> None:
"""将 YAML command 段合并到全局 command 对象,缺失 key 回退到环境变量默认值。"""
cmd_data = data.get("command", {})
command.prefix = str(cmd_data.get("prefix", _ENV_DEFAULTS["prefix"]))
command.length_min = int(cmd_data.get("length_min", _ENV_DEFAULTS["length_min"]))
command.length_max = int(cmd_data.get("length_max", _ENV_DEFAULTS["length_max"]))
command.scope = str(cmd_data.get("scope", _ENV_DEFAULTS["scope"]))
command.list_mode = str(cmd_data.get("list_mode", _ENV_DEFAULTS["list_mode"]))
command.callback_url = str(cmd_data.get("callback_url", _ENV_DEFAULTS["callback_url"]))
command.callback_timeout = int(cmd_data.get("callback_timeout", _ENV_DEFAULTS["callback_timeout"]))
# at_sender: YAML bool → Python bool
at_sender_val = cmd_data.get("at_sender", _ENV_DEFAULTS["at_sender"])
if isinstance(at_sender_val, str):
command.at_sender = at_sender_val.lower() in ("true", "1", "yes")
else:
command.at_sender = bool(at_sender_val)
# 列表字段: YAML list → frozenset
for field_name in ("allowed_groups", "denied_groups", "allowed_users", "denied_users"):
raw = cmd_data.get(field_name)
if raw is None:
# 回退到环境变量默认值
env_default = _ENV_DEFAULTS[field_name]
if isinstance(env_default, str):
setattr(command, field_name, frozenset(
v.strip() for v in env_default.split(",") if v.strip()
))
else:
setattr(command, field_name, frozenset(env_default) if env_default else frozenset())
elif isinstance(raw, str):
setattr(command, field_name, frozenset(
v.strip() for v in raw.split(",") if v.strip()
))
elif isinstance(raw, list):
setattr(command, field_name, frozenset(str(v).strip() for v in raw if str(v).strip()))
else:
setattr(command, field_name, frozenset())
# 重建命令匹配正则
from .handlers.command import rebuild_pattern
rebuild_pattern()
# ── 公共 API ─────────────────────────────────────────────────
def reload_settings() -> None:
"""重新读取 settings.yaml 并应用到全局 command 对象。"""
data = load_yaml()
_apply_yaml_to_command(data)
logger.info("Config reloaded from settings.yaml")
def get_settings_flat() -> dict[str, str]:
"""返回所有动态配置的扁平字典 {key: str_value},供管理 API 使用。"""
return {
"command_prefix": command.prefix,
"command_length_min": str(command.length_min),
"command_length_max": str(command.length_max),
"command_scope": command.scope,
"command_list_mode": command.list_mode,
"command_allowed_groups": ",".join(sorted(command.allowed_groups)),
"command_denied_groups": ",".join(sorted(command.denied_groups)),
"command_allowed_users": ",".join(sorted(command.allowed_users)),
"command_denied_users": ",".join(sorted(command.denied_users)),
"command_at_sender": str(command.at_sender).lower(),
"command_callback_url": command.callback_url,
"command_callback_timeout": str(command.callback_timeout),
}
# API 平坦 key → (YAML key, 类型转换) 映射
_API_KEY_MAP: dict[str, tuple[str, ...]] = {
"command_prefix": ("prefix", str),
"command_length_min": ("length_min", int),
"command_length_max": ("length_max", int),
"command_scope": ("scope", str),
"command_list_mode": ("list_mode", str),
"command_at_sender": ("at_sender", "bool"),
"command_callback_url": ("callback_url", str),
"command_callback_timeout": ("callback_timeout", int),
"command_allowed_groups": ("allowed_groups", "csv_list"),
"command_denied_groups": ("denied_groups", "csv_list"),
"command_allowed_users": ("allowed_users", "csv_list"),
"command_denied_users": ("denied_users", "csv_list"),
}
def update_settings_from_api(data: dict[str, str]) -> dict[str, str]:
"""从管理 API 接收扁平字典,合并到 settings.yaml 并热重载。返回已应用的字段。"""
allowed_keys = set(_API_KEY_MAP.keys())
filtered = {k: str(v) for k, v in data.items() if k in allowed_keys}
if not filtered:
return {}
# 读取当前 YAML合并修改
yaml_data = load_yaml()
if "command" not in yaml_data:
yaml_data["command"] = {}
cmd = yaml_data["command"]
for flat_key, value in filtered.items():
yaml_key, conv = _API_KEY_MAP[flat_key]
if conv == "csv_list":
cmd[yaml_key] = [v.strip() for v in value.split(",") if v.strip()]
elif conv == "bool":
cmd[yaml_key] = value.lower() in ("true", "1", "yes")
elif conv is int:
try:
cmd[yaml_key] = int(value)
except ValueError:
pass
else:
cmd[yaml_key] = value
save_yaml(yaml_data)
# 写入后立即应用(不等文件 watcher
_apply_yaml_to_command(yaml_data)
return filtered