banteg
294 lines
8.8 KiB
Python
294 lines
8.8 KiB
Python
from __future__ import annotations
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import json
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import os
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import sqlite3
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import time
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import urllib.error
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import urllib.request
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from dataclasses import dataclass
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from pathlib import Path
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from typing import Any, Dict, Iterable, List, Optional, Tuple
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TELEGRAM_HARD_LIMIT = 4096
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DEFAULT_CHUNK_LEN = 3500 # leave room for formatting / safety
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TELEGRAM_CONFIG_PATH = Path.home() / ".codex" / "telegram.toml"
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def _now_unix() -> int:
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return int(time.time())
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def _load_toml(path: Path) -> Dict[str, Any]:
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if not path.exists():
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return {}
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try:
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import tomllib # type: ignore[attr-defined]
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except ModuleNotFoundError:
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try:
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import tomli as tomllib # type: ignore[import-not-found]
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except ModuleNotFoundError as e:
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raise RuntimeError(
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f"TOML config found at {path} but tomllib/tomli is unavailable. "
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"Use Python 3.11+ or install tomli."
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) from e
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return tomllib.loads(path.read_text(encoding="utf-8"))
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def load_telegram_config(path: Optional[str] = None) -> Dict[str, Any]:
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cfg_path = Path(path) if path else TELEGRAM_CONFIG_PATH
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return _load_toml(cfg_path)
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def config_get(config: Dict[str, Any], key: str) -> Any:
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if key in config:
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return config[key]
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nested = config.get("telegram")
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if isinstance(nested, dict) and key in nested:
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return nested[key]
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return None
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def chunk_text(text: str, limit: int = DEFAULT_CHUNK_LEN) -> List[str]:
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"""
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Telegram hard limit is 4096 chars. Chunk at newlines when possible.
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"""
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text = text or ""
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if len(text) <= limit:
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return [text]
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out: List[str] = []
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buf: List[str] = []
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size = 0
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for line in text.splitlines(keepends=True):
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if len(line) > limit:
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# flush current buffer
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if buf:
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out.append("".join(buf))
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buf, size = [], 0
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# hard-split this long line
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for i in range(0, len(line), limit):
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out.append(line[i : i + limit])
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continue
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if size + len(line) > limit:
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out.append("".join(buf))
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buf, size = [line], len(line)
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else:
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buf.append(line)
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size += len(line)
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if buf:
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out.append("".join(buf))
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return out
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class TelegramClient:
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"""
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Minimal Telegram Bot API client using standard library (no requests dependency).
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Env:
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TELEGRAM_BOT_TOKEN
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"""
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def __init__(self, token: str, timeout_s: int = 120) -> None:
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if not token:
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raise ValueError("Telegram token is empty")
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self._base = f"https://api.telegram.org/bot{token}"
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self._timeout_s = timeout_s
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def _call(self, method: str, params: Dict[str, Any]) -> Any:
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url = f"{self._base}/{method}"
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data = json.dumps(params).encode("utf-8")
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req = urllib.request.Request(
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url,
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data=data,
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headers={"Content-Type": "application/json"},
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method="POST",
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)
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try:
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with urllib.request.urlopen(req, timeout=self._timeout_s) as resp:
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payload = json.loads(resp.read().decode("utf-8"))
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except urllib.error.HTTPError as e:
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body = e.read().decode("utf-8", errors="replace")
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raise RuntimeError(f"Telegram HTTPError {e.code}: {body}") from e
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except urllib.error.URLError as e:
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raise RuntimeError(f"Telegram URLError: {e}") from e
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if not payload.get("ok"):
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raise RuntimeError(f"Telegram API error: {payload}")
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return payload["result"]
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def get_updates(
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self,
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offset: Optional[int],
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timeout_s: int = 50,
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allowed_updates: Optional[List[str]] = None,
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) -> List[Dict[str, Any]]:
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params: Dict[str, Any] = {"timeout": timeout_s}
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if offset is not None:
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params["offset"] = offset
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if allowed_updates is not None:
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params["allowed_updates"] = allowed_updates
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return self._call("getUpdates", params)
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def send_message(
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self,
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chat_id: int,
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text: str,
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reply_to_message_id: Optional[int] = None,
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disable_notification: bool = False,
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) -> Dict[str, Any]:
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if len(text) > TELEGRAM_HARD_LIMIT:
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raise ValueError("send_message received too-long text; chunk it first")
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params: Dict[str, Any] = {
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"chat_id": chat_id,
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"text": text,
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"disable_notification": disable_notification,
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}
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if reply_to_message_id is not None:
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params["reply_to_message_id"] = reply_to_message_id
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return self._call("sendMessage", params)
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def send_message_chunked(
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self,
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chat_id: int,
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text: str,
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reply_to_message_id: Optional[int] = None,
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disable_notification: bool = False,
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chunk_len: int = DEFAULT_CHUNK_LEN,
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) -> List[Dict[str, Any]]:
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sent: List[Dict[str, Any]] = []
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chunks = chunk_text(text, limit=chunk_len)
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for i, c in enumerate(chunks):
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msg = self.send_message(
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chat_id=chat_id,
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text=c,
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reply_to_message_id=(reply_to_message_id if i == 0 else None),
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disable_notification=disable_notification,
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)
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sent.append(msg)
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return sent
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def send_chat_action(self, chat_id: int, action: str = "typing") -> Dict[str, Any]:
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params: Dict[str, Any] = {
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"chat_id": chat_id,
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"action": action,
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}
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return self._call("sendChatAction", params)
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@dataclass(frozen=True)
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class Route:
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route_type: str # "exec" | "mcp" | "tmux"
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route_id: str # session_id / conversationId / tmux target
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meta: Dict[str, Any]
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class RouteStore:
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"""
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Stores mapping: (chat_id, bot_message_id) -> route
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so Telegram replies can be routed.
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"""
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def __init__(self, path: str) -> None:
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os.makedirs(os.path.dirname(path) or ".", exist_ok=True)
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self._conn = sqlite3.connect(path, check_same_thread=False)
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self._conn.execute("PRAGMA journal_mode=WAL;")
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self._conn.execute(
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"""
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CREATE TABLE IF NOT EXISTS routes (
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chat_id INTEGER NOT NULL,
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bot_message_id INTEGER NOT NULL,
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route_type TEXT NOT NULL,
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route_id TEXT NOT NULL,
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meta_json TEXT,
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created_at INTEGER NOT NULL,
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PRIMARY KEY (chat_id, bot_message_id)
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);
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"""
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)
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self._conn.execute(
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"CREATE INDEX IF NOT EXISTS idx_routes_route_id ON routes(route_id);"
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)
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self._conn.commit()
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def link(
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self,
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chat_id: int,
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bot_message_id: int,
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route_type: str,
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route_id: str,
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meta: Optional[Dict[str, Any]] = None,
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) -> None:
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meta_json = json.dumps(meta or {}, ensure_ascii=False)
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self._conn.execute(
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"""
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INSERT OR REPLACE INTO routes(chat_id, bot_message_id, route_type, route_id, meta_json, created_at)
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VALUES(?, ?, ?, ?, ?, ?)
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""",
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(chat_id, bot_message_id, route_type, route_id, meta_json, _now_unix()),
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)
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self._conn.commit()
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def resolve(self, chat_id: int, bot_message_id: int) -> Optional[Route]:
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cur = self._conn.execute(
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"""
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SELECT route_type, route_id, meta_json
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FROM routes
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WHERE chat_id = ? AND bot_message_id = ?
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""",
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(chat_id, bot_message_id),
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)
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row = cur.fetchone()
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if not row:
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return None
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route_type, route_id, meta_json = row
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try:
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meta = json.loads(meta_json) if meta_json else {}
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except json.JSONDecodeError:
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meta = {}
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return Route(route_type=route_type, route_id=route_id, meta=meta)
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def close(self) -> None:
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self._conn.close()
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def parse_allowed_chat_ids(env_value: str) -> Optional[set[int]]:
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"""
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Parse ALLOWED_CHAT_IDS="123,456"
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"""
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v = (env_value or "").strip()
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if not v:
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return None
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out: set[int] = set()
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for part in v.split(","):
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part = part.strip()
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if not part:
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continue
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out.add(int(part))
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return out
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def parse_chat_id_list(value: Any) -> Optional[set[int]]:
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if value is None:
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return None
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if isinstance(value, str):
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return parse_allowed_chat_ids(value)
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if isinstance(value, int):
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return {value}
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if isinstance(value, (list, tuple, set)):
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out: set[int] = set()
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for item in value:
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if item is None:
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continue
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if isinstance(item, str):
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if not item.strip():
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continue
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out.add(int(item))
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else:
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out.add(int(item))
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return out or None
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return None
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