Update 2026-05-13 16:43:53
This commit is contained in:
yi
@@ -0,0 +1,950 @@
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"""Telegram channel implementation using python-telegram-bot."""
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from __future__ import annotations
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import asyncio
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import re
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import time
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import unicodedata
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from dataclasses import dataclass, field
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from typing import Any, Literal
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from loguru import logger
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from pydantic import Field
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from telegram import BotCommand, ReactionTypeEmoji, ReplyParameters, Update
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from telegram.error import BadRequest, TimedOut
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from telegram.ext import Application, CommandHandler, ContextTypes, MessageHandler, filters
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from telegram.request import HTTPXRequest
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from nanobot.bus.events import OutboundMessage
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from nanobot.bus.queue import MessageBus
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from nanobot.channels.base import BaseChannel
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from nanobot.config.paths import get_media_dir
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from nanobot.config.schema import Base
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from nanobot.security.network import validate_url_target
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from nanobot.utils.helpers import split_message
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TELEGRAM_MAX_MESSAGE_LEN = 4000 # Telegram message character limit
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TELEGRAM_REPLY_CONTEXT_MAX_LEN = TELEGRAM_MAX_MESSAGE_LEN # Max length for reply context in user message
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def _strip_md(s: str) -> str:
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"""Strip markdown inline formatting from text."""
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s = re.sub(r'\*\*(.+?)\*\*', r'\1', s)
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s = re.sub(r'__(.+?)__', r'\1', s)
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s = re.sub(r'~~(.+?)~~', r'\1', s)
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s = re.sub(r'`([^`]+)`', r'\1', s)
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return s.strip()
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def _render_table_box(table_lines: list[str]) -> str:
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"""Convert markdown pipe-table to compact aligned text for <pre> display."""
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def dw(s: str) -> int:
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return sum(2 if unicodedata.east_asian_width(c) in ('W', 'F') else 1 for c in s)
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rows: list[list[str]] = []
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has_sep = False
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for line in table_lines:
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cells = [_strip_md(c) for c in line.strip().strip('|').split('|')]
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if all(re.match(r'^:?-+:?$', c) for c in cells if c):
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has_sep = True
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continue
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rows.append(cells)
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if not rows or not has_sep:
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return '\n'.join(table_lines)
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ncols = max(len(r) for r in rows)
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for r in rows:
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r.extend([''] * (ncols - len(r)))
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widths = [max(dw(r[c]) for r in rows) for c in range(ncols)]
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def dr(cells: list[str]) -> str:
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return ' '.join(f'{c}{" " * (w - dw(c))}' for c, w in zip(cells, widths))
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out = [dr(rows[0])]
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out.append(' '.join('─' * w for w in widths))
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for row in rows[1:]:
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out.append(dr(row))
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return '\n'.join(out)
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def _markdown_to_telegram_html(text: str) -> str:
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"""
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Convert markdown to Telegram-safe HTML.
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"""
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if not text:
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return ""
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# 1. Extract and protect code blocks (preserve content from other processing)
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code_blocks: list[str] = []
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def save_code_block(m: re.Match) -> str:
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code_blocks.append(m.group(1))
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return f"\x00CB{len(code_blocks) - 1}\x00"
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text = re.sub(r'```[\w]*\n?([\s\S]*?)```', save_code_block, text)
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# 1.5. Convert markdown tables to box-drawing (reuse code_block placeholders)
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lines = text.split('\n')
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rebuilt: list[str] = []
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li = 0
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while li < len(lines):
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if re.match(r'^\s*\|.+\|', lines[li]):
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tbl: list[str] = []
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while li < len(lines) and re.match(r'^\s*\|.+\|', lines[li]):
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tbl.append(lines[li])
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li += 1
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box = _render_table_box(tbl)
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if box != '\n'.join(tbl):
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code_blocks.append(box)
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rebuilt.append(f"\x00CB{len(code_blocks) - 1}\x00")
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else:
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rebuilt.extend(tbl)
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else:
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rebuilt.append(lines[li])
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li += 1
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text = '\n'.join(rebuilt)
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# 2. Extract and protect inline code
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inline_codes: list[str] = []
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def save_inline_code(m: re.Match) -> str:
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inline_codes.append(m.group(1))
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return f"\x00IC{len(inline_codes) - 1}\x00"
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text = re.sub(r'`([^`]+)`', save_inline_code, text)
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# 3. Headers # Title -> just the title text
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text = re.sub(r'^#{1,6}\s+(.+)$', r'\1', text, flags=re.MULTILINE)
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# 4. Blockquotes > text -> just the text (before HTML escaping)
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text = re.sub(r'^>\s*(.*)$', r'\1', text, flags=re.MULTILINE)
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# 5. Escape HTML special characters
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text = text.replace("&", "&").replace("<", "<").replace(">", ">")
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# 6. Links [text](url) - must be before bold/italic to handle nested cases
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text = re.sub(r'\[([^\]]+)\]\(([^)]+)\)', r'<a href="\2">\1</a>', text)
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# 7. Bold **text** or __text__
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text = re.sub(r'\*\*(.+?)\*\*', r'<b>\1</b>', text)
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text = re.sub(r'__(.+?)__', r'<b>\1</b>', text)
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# 8. Italic _text_ (avoid matching inside words like some_var_name)
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text = re.sub(r'(?<![a-zA-Z0-9])_([^_]+)_(?![a-zA-Z0-9])', r'<i>\1</i>', text)
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# 9. Strikethrough ~~text~~
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text = re.sub(r'~~(.+?)~~', r'<s>\1</s>', text)
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# 10. Bullet lists - item -> • item
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text = re.sub(r'^[-*]\s+', '• ', text, flags=re.MULTILINE)
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# 11. Restore inline code with HTML tags
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for i, code in enumerate(inline_codes):
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# Escape HTML in code content
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escaped = code.replace("&", "&").replace("<", "<").replace(">", ">")
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text = text.replace(f"\x00IC{i}\x00", f"<code>{escaped}</code>")
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# 12. Restore code blocks with HTML tags
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for i, code in enumerate(code_blocks):
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# Escape HTML in code content
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escaped = code.replace("&", "&").replace("<", "<").replace(">", ">")
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text = text.replace(f"\x00CB{i}\x00", f"<pre><code>{escaped}</code></pre>")
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return text
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_SEND_MAX_RETRIES = 3
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_SEND_RETRY_BASE_DELAY = 0.5 # seconds, doubled each retry
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@dataclass
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class _StreamBuf:
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"""Per-chat streaming accumulator for progressive message editing."""
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text: str = ""
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message_id: int | None = None
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last_edit: float = 0.0
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stream_id: str | None = None
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class TelegramConfig(Base):
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"""Telegram channel configuration."""
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enabled: bool = False
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token: str = ""
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allow_from: list[str] = Field(default_factory=list)
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proxy: str | None = None
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reply_to_message: bool = False
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react_emoji: str = "👀"
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group_policy: Literal["open", "mention"] = "mention"
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connection_pool_size: int = 32
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pool_timeout: float = 5.0
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streaming: bool = True
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class TelegramChannel(BaseChannel):
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"""
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Telegram channel using long polling.
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Simple and reliable - no webhook/public IP needed.
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"""
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name = "telegram"
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display_name = "Telegram"
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# Commands registered with Telegram's command menu
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BOT_COMMANDS = [
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BotCommand("start", "Start the bot"),
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BotCommand("new", "Start a new conversation"),
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BotCommand("stop", "Stop the current task"),
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BotCommand("help", "Show available commands"),
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BotCommand("restart", "Restart the bot"),
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BotCommand("status", "Show bot status"),
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]
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@classmethod
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def default_config(cls) -> dict[str, Any]:
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return TelegramConfig().model_dump(by_alias=True)
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_STREAM_EDIT_INTERVAL = 0.6 # min seconds between edit_message_text calls
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def __init__(self, config: Any, bus: MessageBus):
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if isinstance(config, dict):
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config = TelegramConfig.model_validate(config)
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super().__init__(config, bus)
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self.config: TelegramConfig = config
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self._app: Application | None = None
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self._chat_ids: dict[str, int] = {} # Map sender_id to chat_id for replies
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self._typing_tasks: dict[str, asyncio.Task] = {} # chat_id -> typing loop task
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self._media_group_buffers: dict[str, dict] = {}
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self._media_group_tasks: dict[str, asyncio.Task] = {}
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self._message_threads: dict[tuple[str, int], int] = {}
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self._bot_user_id: int | None = None
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self._bot_username: str | None = None
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self._stream_bufs: dict[str, _StreamBuf] = {} # chat_id -> streaming state
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def is_allowed(self, sender_id: str) -> bool:
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"""Preserve Telegram's legacy id|username allowlist matching."""
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if super().is_allowed(sender_id):
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return True
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allow_list = getattr(self.config, "allow_from", [])
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if not allow_list or "*" in allow_list:
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return False
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sender_str = str(sender_id)
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if sender_str.count("|") != 1:
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return False
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sid, username = sender_str.split("|", 1)
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if not sid.isdigit() or not username:
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return False
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return sid in allow_list or username in allow_list
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async def start(self) -> None:
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"""Start the Telegram bot with long polling."""
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if not self.config.token:
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logger.error("Telegram bot token not configured")
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return
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self._running = True
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proxy = self.config.proxy or None
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# Separate pools so long-polling (getUpdates) never starves outbound sends.
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api_request = HTTPXRequest(
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connection_pool_size=self.config.connection_pool_size,
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pool_timeout=self.config.pool_timeout,
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connect_timeout=30.0,
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read_timeout=30.0,
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proxy=proxy,
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)
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poll_request = HTTPXRequest(
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connection_pool_size=4,
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pool_timeout=self.config.pool_timeout,
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connect_timeout=30.0,
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read_timeout=30.0,
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proxy=proxy,
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)
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builder = (
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Application.builder()
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.token(self.config.token)
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.request(api_request)
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.get_updates_request(poll_request)
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)
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self._app = builder.build()
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self._app.add_error_handler(self._on_error)
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# Add command handlers
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self._app.add_handler(CommandHandler("start", self._on_start))
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self._app.add_handler(CommandHandler("new", self._forward_command))
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self._app.add_handler(CommandHandler("stop", self._forward_command))
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self._app.add_handler(CommandHandler("restart", self._forward_command))
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self._app.add_handler(CommandHandler("status", self._forward_command))
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self._app.add_handler(CommandHandler("help", self._on_help))
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# Add message handler for text, photos, voice, documents
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self._app.add_handler(
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MessageHandler(
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(filters.TEXT | filters.PHOTO | filters.VOICE | filters.AUDIO | filters.Document.ALL)
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& ~filters.COMMAND,
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self._on_message
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)
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)
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logger.info("Starting Telegram bot (polling mode)...")
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# Initialize and start polling
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await self._app.initialize()
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await self._app.start()
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# Get bot info and register command menu
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bot_info = await self._app.bot.get_me()
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self._bot_user_id = getattr(bot_info, "id", None)
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self._bot_username = getattr(bot_info, "username", None)
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logger.info("Telegram bot @{} connected", bot_info.username)
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try:
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await self._app.bot.set_my_commands(self.BOT_COMMANDS)
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logger.debug("Telegram bot commands registered")
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except Exception as e:
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logger.warning("Failed to register bot commands: {}", e)
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# Start polling (this runs until stopped)
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await self._app.updater.start_polling(
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allowed_updates=["message"],
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drop_pending_updates=True # Ignore old messages on startup
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)
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# Keep running until stopped
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while self._running:
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await asyncio.sleep(1)
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async def stop(self) -> None:
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"""Stop the Telegram bot."""
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self._running = False
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# Cancel all typing indicators
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for chat_id in list(self._typing_tasks):
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self._stop_typing(chat_id)
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for task in self._media_group_tasks.values():
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task.cancel()
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self._media_group_tasks.clear()
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self._media_group_buffers.clear()
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if self._app:
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logger.info("Stopping Telegram bot...")
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await self._app.updater.stop()
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await self._app.stop()
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await self._app.shutdown()
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self._app = None
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@staticmethod
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def _get_media_type(path: str) -> str:
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"""Guess media type from file extension."""
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ext = path.rsplit(".", 1)[-1].lower() if "." in path else ""
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if ext in ("jpg", "jpeg", "png", "gif", "webp"):
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return "photo"
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if ext == "ogg":
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return "voice"
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if ext in ("mp3", "m4a", "wav", "aac"):
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return "audio"
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return "document"
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@staticmethod
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def _is_remote_media_url(path: str) -> bool:
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return path.startswith(("http://", "https://"))
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async def send(self, msg: OutboundMessage) -> None:
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"""Send a message through Telegram."""
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if not self._app:
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logger.warning("Telegram bot not running")
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return
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# Only stop typing indicator for final responses
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if not msg.metadata.get("_progress", False):
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self._stop_typing(msg.chat_id)
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try:
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chat_id = int(msg.chat_id)
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except ValueError:
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logger.error("Invalid chat_id: {}", msg.chat_id)
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return
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reply_to_message_id = msg.metadata.get("message_id")
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message_thread_id = msg.metadata.get("message_thread_id")
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if message_thread_id is None and reply_to_message_id is not None:
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message_thread_id = self._message_threads.get((msg.chat_id, reply_to_message_id))
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thread_kwargs = {}
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if message_thread_id is not None:
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thread_kwargs["message_thread_id"] = message_thread_id
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reply_params = None
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if self.config.reply_to_message:
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if reply_to_message_id:
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reply_params = ReplyParameters(
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message_id=reply_to_message_id,
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allow_sending_without_reply=True
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)
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# Send media files
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for media_path in (msg.media or []):
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try:
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media_type = self._get_media_type(media_path)
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sender = {
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"photo": self._app.bot.send_photo,
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"voice": self._app.bot.send_voice,
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"audio": self._app.bot.send_audio,
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}.get(media_type, self._app.bot.send_document)
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param = "photo" if media_type == "photo" else media_type if media_type in ("voice", "audio") else "document"
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# Telegram Bot API accepts HTTP(S) URLs directly for media params.
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if self._is_remote_media_url(media_path):
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ok, error = validate_url_target(media_path)
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if not ok:
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raise ValueError(f"unsafe media URL: {error}")
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await self._call_with_retry(
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sender,
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chat_id=chat_id,
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**{param: media_path},
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reply_parameters=reply_params,
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**thread_kwargs,
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||||
)
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continue
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||||
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||||
with open(media_path, "rb") as f:
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||||
await sender(
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||||
chat_id=chat_id,
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||||
**{param: f},
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||||
reply_parameters=reply_params,
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||||
**thread_kwargs,
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||||
)
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||||
except Exception as e:
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filename = media_path.rsplit("/", 1)[-1]
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logger.error("Failed to send media {}: {}", media_path, e)
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await self._app.bot.send_message(
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chat_id=chat_id,
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text=f"[Failed to send: {filename}]",
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reply_parameters=reply_params,
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**thread_kwargs,
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||||
)
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||||
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||||
# Send text content
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if msg.content and msg.content != "[empty message]":
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for chunk in split_message(msg.content, TELEGRAM_MAX_MESSAGE_LEN):
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await self._send_text(chat_id, chunk, reply_params, thread_kwargs)
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async def _call_with_retry(self, fn, *args, **kwargs):
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||||
"""Call an async Telegram API function with retry on pool/network timeout."""
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||||
for attempt in range(1, _SEND_MAX_RETRIES + 1):
|
||||
try:
|
||||
return await fn(*args, **kwargs)
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||||
except TimedOut:
|
||||
if attempt == _SEND_MAX_RETRIES:
|
||||
raise
|
||||
delay = _SEND_RETRY_BASE_DELAY * (2 ** (attempt - 1))
|
||||
logger.warning(
|
||||
"Telegram timeout (attempt {}/{}), retrying in {:.1f}s",
|
||||
attempt, _SEND_MAX_RETRIES, delay,
|
||||
)
|
||||
await asyncio.sleep(delay)
|
||||
|
||||
async def _send_text(
|
||||
self,
|
||||
chat_id: int,
|
||||
text: str,
|
||||
reply_params=None,
|
||||
thread_kwargs: dict | None = None,
|
||||
) -> None:
|
||||
"""Send a plain text message with HTML fallback."""
|
||||
try:
|
||||
html = _markdown_to_telegram_html(text)
|
||||
await self._call_with_retry(
|
||||
self._app.bot.send_message,
|
||||
chat_id=chat_id, text=html, parse_mode="HTML",
|
||||
reply_parameters=reply_params,
|
||||
**(thread_kwargs or {}),
|
||||
)
|
||||
except Exception as e:
|
||||
logger.warning("HTML parse failed, falling back to plain text: {}", e)
|
||||
try:
|
||||
await self._call_with_retry(
|
||||
self._app.bot.send_message,
|
||||
chat_id=chat_id,
|
||||
text=text,
|
||||
reply_parameters=reply_params,
|
||||
**(thread_kwargs or {}),
|
||||
)
|
||||
except Exception as e2:
|
||||
logger.error("Error sending Telegram message: {}", e2)
|
||||
raise
|
||||
|
||||
@staticmethod
|
||||
def _is_not_modified_error(exc: Exception) -> bool:
|
||||
return isinstance(exc, BadRequest) and "message is not modified" in str(exc).lower()
|
||||
|
||||
async def send_delta(self, chat_id: str, delta: str, metadata: dict[str, Any] | None = None) -> None:
|
||||
"""Progressive message editing: send on first delta, edit on subsequent ones."""
|
||||
if not self._app:
|
||||
return
|
||||
meta = metadata or {}
|
||||
int_chat_id = int(chat_id)
|
||||
stream_id = meta.get("_stream_id")
|
||||
|
||||
if meta.get("_stream_end"):
|
||||
buf = self._stream_bufs.get(chat_id)
|
||||
if not buf or not buf.message_id or not buf.text:
|
||||
return
|
||||
if stream_id is not None and buf.stream_id is not None and buf.stream_id != stream_id:
|
||||
return
|
||||
self._stop_typing(chat_id)
|
||||
try:
|
||||
html = _markdown_to_telegram_html(buf.text)
|
||||
await self._call_with_retry(
|
||||
self._app.bot.edit_message_text,
|
||||
chat_id=int_chat_id, message_id=buf.message_id,
|
||||
text=html, parse_mode="HTML",
|
||||
)
|
||||
except Exception as e:
|
||||
if self._is_not_modified_error(e):
|
||||
logger.debug("Final stream edit already applied for {}", chat_id)
|
||||
self._stream_bufs.pop(chat_id, None)
|
||||
return
|
||||
logger.debug("Final stream edit failed (HTML), trying plain: {}", e)
|
||||
try:
|
||||
await self._call_with_retry(
|
||||
self._app.bot.edit_message_text,
|
||||
chat_id=int_chat_id, message_id=buf.message_id,
|
||||
text=buf.text,
|
||||
)
|
||||
except Exception as e2:
|
||||
if self._is_not_modified_error(e2):
|
||||
logger.debug("Final stream plain edit already applied for {}", chat_id)
|
||||
self._stream_bufs.pop(chat_id, None)
|
||||
return
|
||||
logger.warning("Final stream edit failed: {}", e2)
|
||||
raise # Let ChannelManager handle retry
|
||||
self._stream_bufs.pop(chat_id, None)
|
||||
return
|
||||
|
||||
buf = self._stream_bufs.get(chat_id)
|
||||
if buf is None or (stream_id is not None and buf.stream_id is not None and buf.stream_id != stream_id):
|
||||
buf = _StreamBuf(stream_id=stream_id)
|
||||
self._stream_bufs[chat_id] = buf
|
||||
elif buf.stream_id is None:
|
||||
buf.stream_id = stream_id
|
||||
buf.text += delta
|
||||
|
||||
if not buf.text.strip():
|
||||
return
|
||||
|
||||
now = time.monotonic()
|
||||
if buf.message_id is None:
|
||||
try:
|
||||
sent = await self._call_with_retry(
|
||||
self._app.bot.send_message,
|
||||
chat_id=int_chat_id, text=buf.text,
|
||||
)
|
||||
buf.message_id = sent.message_id
|
||||
buf.last_edit = now
|
||||
except Exception as e:
|
||||
logger.warning("Stream initial send failed: {}", e)
|
||||
raise # Let ChannelManager handle retry
|
||||
elif (now - buf.last_edit) >= self._STREAM_EDIT_INTERVAL:
|
||||
try:
|
||||
await self._call_with_retry(
|
||||
self._app.bot.edit_message_text,
|
||||
chat_id=int_chat_id, message_id=buf.message_id,
|
||||
text=buf.text,
|
||||
)
|
||||
buf.last_edit = now
|
||||
except Exception as e:
|
||||
if self._is_not_modified_error(e):
|
||||
buf.last_edit = now
|
||||
return
|
||||
logger.warning("Stream edit failed: {}", e)
|
||||
raise # Let ChannelManager handle retry
|
||||
|
||||
async def _on_start(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
|
||||
"""Handle /start command."""
|
||||
if not update.message or not update.effective_user:
|
||||
return
|
||||
|
||||
user = update.effective_user
|
||||
await update.message.reply_text(
|
||||
f"👋 Hi {user.first_name}! I'm nanobot.\n\n"
|
||||
"Send me a message and I'll respond!\n"
|
||||
"Type /help to see available commands."
|
||||
)
|
||||
|
||||
async def _on_help(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
|
||||
"""Handle /help command, bypassing ACL so all users can access it."""
|
||||
if not update.message:
|
||||
return
|
||||
await update.message.reply_text(
|
||||
"🐈 nanobot commands:\n"
|
||||
"/new — Start a new conversation\n"
|
||||
"/stop — Stop the current task\n"
|
||||
"/restart — Restart the bot\n"
|
||||
"/status — Show bot status\n"
|
||||
"/help — Show available commands"
|
||||
)
|
||||
|
||||
@staticmethod
|
||||
def _sender_id(user) -> str:
|
||||
"""Build sender_id with username for allowlist matching."""
|
||||
sid = str(user.id)
|
||||
return f"{sid}|{user.username}" if user.username else sid
|
||||
|
||||
@staticmethod
|
||||
def _derive_topic_session_key(message) -> str | None:
|
||||
"""Derive topic-scoped session key for non-private Telegram chats."""
|
||||
message_thread_id = getattr(message, "message_thread_id", None)
|
||||
if message.chat.type == "private" or message_thread_id is None:
|
||||
return None
|
||||
return f"telegram:{message.chat_id}:topic:{message_thread_id}"
|
||||
|
||||
@staticmethod
|
||||
def _build_message_metadata(message, user) -> dict:
|
||||
"""Build common Telegram inbound metadata payload."""
|
||||
reply_to = getattr(message, "reply_to_message", None)
|
||||
return {
|
||||
"message_id": message.message_id,
|
||||
"user_id": user.id,
|
||||
"username": user.username,
|
||||
"first_name": user.first_name,
|
||||
"is_group": message.chat.type != "private",
|
||||
"message_thread_id": getattr(message, "message_thread_id", None),
|
||||
"is_forum": bool(getattr(message.chat, "is_forum", False)),
|
||||
"reply_to_message_id": getattr(reply_to, "message_id", None) if reply_to else None,
|
||||
}
|
||||
|
||||
@staticmethod
|
||||
def _extract_reply_context(message) -> str | None:
|
||||
"""Extract text from the message being replied to, if any."""
|
||||
reply = getattr(message, "reply_to_message", None)
|
||||
if not reply:
|
||||
return None
|
||||
text = getattr(reply, "text", None) or getattr(reply, "caption", None) or ""
|
||||
if len(text) > TELEGRAM_REPLY_CONTEXT_MAX_LEN:
|
||||
text = text[:TELEGRAM_REPLY_CONTEXT_MAX_LEN] + "..."
|
||||
return f"[Reply to: {text}]" if text else None
|
||||
|
||||
async def _download_message_media(
|
||||
self, msg, *, add_failure_content: bool = False
|
||||
) -> tuple[list[str], list[str]]:
|
||||
"""Download media from a message (current or reply). Returns (media_paths, content_parts)."""
|
||||
media_file = None
|
||||
media_type = None
|
||||
if getattr(msg, "photo", None):
|
||||
media_file = msg.photo[-1]
|
||||
media_type = "image"
|
||||
elif getattr(msg, "voice", None):
|
||||
media_file = msg.voice
|
||||
media_type = "voice"
|
||||
elif getattr(msg, "audio", None):
|
||||
media_file = msg.audio
|
||||
media_type = "audio"
|
||||
elif getattr(msg, "document", None):
|
||||
media_file = msg.document
|
||||
media_type = "file"
|
||||
elif getattr(msg, "video", None):
|
||||
media_file = msg.video
|
||||
media_type = "video"
|
||||
elif getattr(msg, "video_note", None):
|
||||
media_file = msg.video_note
|
||||
media_type = "video"
|
||||
elif getattr(msg, "animation", None):
|
||||
media_file = msg.animation
|
||||
media_type = "animation"
|
||||
if not media_file or not self._app:
|
||||
return [], []
|
||||
try:
|
||||
file = await self._app.bot.get_file(media_file.file_id)
|
||||
ext = self._get_extension(
|
||||
media_type,
|
||||
getattr(media_file, "mime_type", None),
|
||||
getattr(media_file, "file_name", None),
|
||||
)
|
||||
media_dir = get_media_dir("telegram")
|
||||
unique_id = getattr(media_file, "file_unique_id", media_file.file_id)
|
||||
file_path = media_dir / f"{unique_id}{ext}"
|
||||
await file.download_to_drive(str(file_path))
|
||||
path_str = str(file_path)
|
||||
if media_type in ("voice", "audio"):
|
||||
transcription = await self.transcribe_audio(file_path)
|
||||
if transcription:
|
||||
logger.info("Transcribed {}: {}...", media_type, transcription[:50])
|
||||
return [path_str], [f"[transcription: {transcription}]"]
|
||||
return [path_str], [f"[{media_type}: {path_str}]"]
|
||||
return [path_str], [f"[{media_type}: {path_str}]"]
|
||||
except Exception as e:
|
||||
logger.warning("Failed to download message media: {}", e)
|
||||
if add_failure_content:
|
||||
return [], [f"[{media_type}: download failed]"]
|
||||
return [], []
|
||||
|
||||
async def _ensure_bot_identity(self) -> tuple[int | None, str | None]:
|
||||
"""Load bot identity once and reuse it for mention/reply checks."""
|
||||
if self._bot_user_id is not None or self._bot_username is not None:
|
||||
return self._bot_user_id, self._bot_username
|
||||
if not self._app:
|
||||
return None, None
|
||||
bot_info = await self._app.bot.get_me()
|
||||
self._bot_user_id = getattr(bot_info, "id", None)
|
||||
self._bot_username = getattr(bot_info, "username", None)
|
||||
return self._bot_user_id, self._bot_username
|
||||
|
||||
@staticmethod
|
||||
def _has_mention_entity(
|
||||
text: str,
|
||||
entities,
|
||||
bot_username: str,
|
||||
bot_id: int | None,
|
||||
) -> bool:
|
||||
"""Check Telegram mention entities against the bot username."""
|
||||
handle = f"@{bot_username}".lower()
|
||||
for entity in entities or []:
|
||||
entity_type = getattr(entity, "type", None)
|
||||
if entity_type == "text_mention":
|
||||
user = getattr(entity, "user", None)
|
||||
if user is not None and bot_id is not None and getattr(user, "id", None) == bot_id:
|
||||
return True
|
||||
continue
|
||||
if entity_type != "mention":
|
||||
continue
|
||||
offset = getattr(entity, "offset", None)
|
||||
length = getattr(entity, "length", None)
|
||||
if offset is None or length is None:
|
||||
continue
|
||||
if text[offset : offset + length].lower() == handle:
|
||||
return True
|
||||
return handle in text.lower()
|
||||
|
||||
async def _is_group_message_for_bot(self, message) -> bool:
|
||||
"""Allow group messages when policy is open, @mentioned, or replying to the bot."""
|
||||
if message.chat.type == "private" or self.config.group_policy == "open":
|
||||
return True
|
||||
|
||||
bot_id, bot_username = await self._ensure_bot_identity()
|
||||
if bot_username:
|
||||
text = message.text or ""
|
||||
caption = message.caption or ""
|
||||
if self._has_mention_entity(
|
||||
text,
|
||||
getattr(message, "entities", None),
|
||||
bot_username,
|
||||
bot_id,
|
||||
):
|
||||
return True
|
||||
if self._has_mention_entity(
|
||||
caption,
|
||||
getattr(message, "caption_entities", None),
|
||||
bot_username,
|
||||
bot_id,
|
||||
):
|
||||
return True
|
||||
|
||||
reply_user = getattr(getattr(message, "reply_to_message", None), "from_user", None)
|
||||
return bool(bot_id and reply_user and reply_user.id == bot_id)
|
||||
|
||||
def _remember_thread_context(self, message) -> None:
|
||||
"""Cache topic thread id by chat/message id for follow-up replies."""
|
||||
message_thread_id = getattr(message, "message_thread_id", None)
|
||||
if message_thread_id is None:
|
||||
return
|
||||
key = (str(message.chat_id), message.message_id)
|
||||
self._message_threads[key] = message_thread_id
|
||||
if len(self._message_threads) > 1000:
|
||||
self._message_threads.pop(next(iter(self._message_threads)))
|
||||
|
||||
async def _forward_command(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
|
||||
"""Forward slash commands to the bus for unified handling in AgentLoop."""
|
||||
if not update.message or not update.effective_user:
|
||||
return
|
||||
message = update.message
|
||||
user = update.effective_user
|
||||
self._remember_thread_context(message)
|
||||
await self._handle_message(
|
||||
sender_id=self._sender_id(user),
|
||||
chat_id=str(message.chat_id),
|
||||
content=message.text or "",
|
||||
metadata=self._build_message_metadata(message, user),
|
||||
session_key=self._derive_topic_session_key(message),
|
||||
)
|
||||
|
||||
async def _on_message(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
|
||||
"""Handle incoming messages (text, photos, voice, documents)."""
|
||||
if not update.message or not update.effective_user:
|
||||
return
|
||||
|
||||
message = update.message
|
||||
user = update.effective_user
|
||||
chat_id = message.chat_id
|
||||
sender_id = self._sender_id(user)
|
||||
self._remember_thread_context(message)
|
||||
|
||||
# Store chat_id for replies
|
||||
self._chat_ids[sender_id] = chat_id
|
||||
|
||||
if not await self._is_group_message_for_bot(message):
|
||||
return
|
||||
|
||||
# Build content from text and/or media
|
||||
content_parts = []
|
||||
media_paths = []
|
||||
|
||||
# Text content
|
||||
if message.text:
|
||||
content_parts.append(message.text)
|
||||
if message.caption:
|
||||
content_parts.append(message.caption)
|
||||
|
||||
# Download current message media
|
||||
current_media_paths, current_media_parts = await self._download_message_media(
|
||||
message, add_failure_content=True
|
||||
)
|
||||
media_paths.extend(current_media_paths)
|
||||
content_parts.extend(current_media_parts)
|
||||
if current_media_paths:
|
||||
logger.debug("Downloaded message media to {}", current_media_paths[0])
|
||||
|
||||
# Reply context: text and/or media from the replied-to message
|
||||
reply = getattr(message, "reply_to_message", None)
|
||||
if reply is not None:
|
||||
reply_ctx = self._extract_reply_context(message)
|
||||
reply_media, reply_media_parts = await self._download_message_media(reply)
|
||||
if reply_media:
|
||||
media_paths = reply_media + media_paths
|
||||
logger.debug("Attached replied-to media: {}", reply_media[0])
|
||||
tag = reply_ctx or (f"[Reply to: {reply_media_parts[0]}]" if reply_media_parts else None)
|
||||
if tag:
|
||||
content_parts.insert(0, tag)
|
||||
content = "\n".join(content_parts) if content_parts else "[empty message]"
|
||||
|
||||
logger.debug("Telegram message from {}: {}...", sender_id, content[:50])
|
||||
|
||||
str_chat_id = str(chat_id)
|
||||
metadata = self._build_message_metadata(message, user)
|
||||
session_key = self._derive_topic_session_key(message)
|
||||
|
||||
# Telegram media groups: buffer briefly, forward as one aggregated turn.
|
||||
if media_group_id := getattr(message, "media_group_id", None):
|
||||
key = f"{str_chat_id}:{media_group_id}"
|
||||
if key not in self._media_group_buffers:
|
||||
self._media_group_buffers[key] = {
|
||||
"sender_id": sender_id, "chat_id": str_chat_id,
|
||||
"contents": [], "media": [],
|
||||
"metadata": metadata,
|
||||
"session_key": session_key,
|
||||
}
|
||||
self._start_typing(str_chat_id)
|
||||
await self._add_reaction(str_chat_id, message.message_id, self.config.react_emoji)
|
||||
buf = self._media_group_buffers[key]
|
||||
if content and content != "[empty message]":
|
||||
buf["contents"].append(content)
|
||||
buf["media"].extend(media_paths)
|
||||
if key not in self._media_group_tasks:
|
||||
self._media_group_tasks[key] = asyncio.create_task(self._flush_media_group(key))
|
||||
return
|
||||
|
||||
# Start typing indicator before processing
|
||||
self._start_typing(str_chat_id)
|
||||
await self._add_reaction(str_chat_id, message.message_id, self.config.react_emoji)
|
||||
|
||||
# Forward to the message bus
|
||||
await self._handle_message(
|
||||
sender_id=sender_id,
|
||||
chat_id=str_chat_id,
|
||||
content=content,
|
||||
media=media_paths,
|
||||
metadata=metadata,
|
||||
session_key=session_key,
|
||||
)
|
||||
|
||||
async def _flush_media_group(self, key: str) -> None:
|
||||
"""Wait briefly, then forward buffered media-group as one turn."""
|
||||
try:
|
||||
await asyncio.sleep(0.6)
|
||||
if not (buf := self._media_group_buffers.pop(key, None)):
|
||||
return
|
||||
content = "\n".join(buf["contents"]) or "[empty message]"
|
||||
await self._handle_message(
|
||||
sender_id=buf["sender_id"], chat_id=buf["chat_id"],
|
||||
content=content, media=list(dict.fromkeys(buf["media"])),
|
||||
metadata=buf["metadata"],
|
||||
session_key=buf.get("session_key"),
|
||||
)
|
||||
finally:
|
||||
self._media_group_tasks.pop(key, None)
|
||||
|
||||
def _start_typing(self, chat_id: str) -> None:
|
||||
"""Start sending 'typing...' indicator for a chat."""
|
||||
# Cancel any existing typing task for this chat
|
||||
self._stop_typing(chat_id)
|
||||
self._typing_tasks[chat_id] = asyncio.create_task(self._typing_loop(chat_id))
|
||||
|
||||
def _stop_typing(self, chat_id: str) -> None:
|
||||
"""Stop the typing indicator for a chat."""
|
||||
task = self._typing_tasks.pop(chat_id, None)
|
||||
if task and not task.done():
|
||||
task.cancel()
|
||||
|
||||
async def _add_reaction(self, chat_id: str, message_id: int, emoji: str) -> None:
|
||||
"""Add emoji reaction to a message (best-effort, non-blocking)."""
|
||||
if not self._app or not emoji:
|
||||
return
|
||||
try:
|
||||
await self._app.bot.set_message_reaction(
|
||||
chat_id=int(chat_id),
|
||||
message_id=message_id,
|
||||
reaction=[ReactionTypeEmoji(emoji=emoji)],
|
||||
)
|
||||
except Exception as e:
|
||||
logger.debug("Telegram reaction failed: {}", e)
|
||||
|
||||
async def _typing_loop(self, chat_id: str) -> None:
|
||||
"""Repeatedly send 'typing' action until cancelled."""
|
||||
try:
|
||||
while self._app:
|
||||
await self._app.bot.send_chat_action(chat_id=int(chat_id), action="typing")
|
||||
await asyncio.sleep(4)
|
||||
except asyncio.CancelledError:
|
||||
pass
|
||||
except Exception as e:
|
||||
logger.debug("Typing indicator stopped for {}: {}", chat_id, e)
|
||||
|
||||
async def _on_error(self, update: object, context: ContextTypes.DEFAULT_TYPE) -> None:
|
||||
"""Log polling / handler errors instead of silently swallowing them."""
|
||||
from telegram.error import NetworkError, TimedOut
|
||||
|
||||
if isinstance(context.error, (NetworkError, TimedOut)):
|
||||
logger.warning("Telegram network issue: {}", str(context.error))
|
||||
else:
|
||||
logger.error("Telegram error: {}", context.error)
|
||||
|
||||
def _get_extension(
|
||||
self,
|
||||
media_type: str,
|
||||
mime_type: str | None,
|
||||
filename: str | None = None,
|
||||
) -> str:
|
||||
"""Get file extension based on media type or original filename."""
|
||||
if mime_type:
|
||||
ext_map = {
|
||||
"image/jpeg": ".jpg", "image/png": ".png", "image/gif": ".gif",
|
||||
"audio/ogg": ".ogg", "audio/mpeg": ".mp3", "audio/mp4": ".m4a",
|
||||
}
|
||||
if mime_type in ext_map:
|
||||
return ext_map[mime_type]
|
||||
|
||||
type_map = {"image": ".jpg", "voice": ".ogg", "audio": ".mp3", "file": ""}
|
||||
if ext := type_map.get(media_type, ""):
|
||||
return ext
|
||||
|
||||
if filename:
|
||||
from pathlib import Path
|
||||
|
||||
return "".join(Path(filename).suffixes)
|
||||
|
||||
return ""
|
||||
Reference in New Issue
Block a user