""" Telegram platform adapter. Uses python-telegram-bot library for: - Receiving messages from users/groups - Sending responses back - Handling media and commands """ import asyncio import json import logging import os import re from typing import Dict, List, Optional, Any logger = logging.getLogger(__name__) try: from telegram import Update, Bot, Message from telegram.ext import ( Application, CommandHandler, MessageHandler as TelegramMessageHandler, ContextTypes, filters, ) from telegram.constants import ParseMode, ChatType from telegram.request import HTTPXRequest TELEGRAM_AVAILABLE = True except ImportError: TELEGRAM_AVAILABLE = False Update = Any Bot = Any Message = Any Application = Any CommandHandler = Any TelegramMessageHandler = Any HTTPXRequest = Any filters = None ParseMode = None ChatType = None # Mock ContextTypes so type annotations using ContextTypes.DEFAULT_TYPE # don't crash during class definition when the library isn't installed. class _MockContextTypes: DEFAULT_TYPE = Any ContextTypes = _MockContextTypes import sys from pathlib import Path as _Path sys.path.insert(0, str(_Path(__file__).resolve().parents[2])) from gateway.config import Platform, PlatformConfig from gateway.platforms.base import ( BasePlatformAdapter, MessageEvent, MessageType, SendResult, cache_image_from_bytes, cache_audio_from_bytes, cache_document_from_bytes, SUPPORTED_DOCUMENT_TYPES, ) from gateway.platforms.telegram_network import ( TelegramFallbackTransport, discover_fallback_ips, parse_fallback_ip_env, ) def check_telegram_requirements() -> bool: """Check if Telegram dependencies are available.""" return TELEGRAM_AVAILABLE # Matches every character that MarkdownV2 requires to be backslash-escaped # when it appears outside a code span or fenced code block. _MDV2_ESCAPE_RE = re.compile(r'([_*\[\]()~`>#\+\-=|{}.!\\])') def _escape_mdv2(text: str) -> str: """Escape Telegram MarkdownV2 special characters with a preceding backslash.""" return _MDV2_ESCAPE_RE.sub(r'\\\1', text) def _strip_mdv2(text: str) -> str: """Strip MarkdownV2 escape backslashes to produce clean plain text. Also removes MarkdownV2 formatting markers so the fallback doesn't show stray syntax characters from format_message conversion. """ # Remove escape backslashes before special characters cleaned = re.sub(r'\\([_*\[\]()~`>#\+\-=|{}.!\\])', r'\1', text) # Remove MarkdownV2 bold markers that format_message converted from **bold** cleaned = re.sub(r'\*([^*]+)\*', r'\1', cleaned) # Remove MarkdownV2 italic markers that format_message converted from *italic* # Use word boundary (\b) to avoid breaking snake_case like my_variable_name cleaned = re.sub(r'(? message_thread_id (populated at startup) self._dm_topics: Dict[str, int] = {} # DM Topics config from extra.dm_topics self._dm_topics_config: List[Dict[str, Any]] = self.config.extra.get("dm_topics", []) def _fallback_ips(self) -> list[str]: """Return validated fallback IPs from config (populated by _apply_env_overrides).""" configured = self.config.extra.get("fallback_ips", []) if getattr(self.config, "extra", None) else [] if isinstance(configured, str): configured = configured.split(",") return parse_fallback_ip_env(",".join(str(v) for v in configured) if configured else None) @staticmethod def _looks_like_polling_conflict(error: Exception) -> bool: text = str(error).lower() return ( error.__class__.__name__.lower() == "conflict" or "terminated by other getupdates request" in text or "another bot instance is running" in text ) @staticmethod def _looks_like_network_error(error: Exception) -> bool: """Return True for transient network errors that warrant a reconnect attempt.""" name = error.__class__.__name__.lower() if name in ("networkerror", "timedout", "connectionerror"): return True try: from telegram.error import NetworkError, TimedOut if isinstance(error, (NetworkError, TimedOut)): return True except ImportError: pass return isinstance(error, OSError) async def _handle_polling_network_error(self, error: Exception) -> None: """Reconnect polling after a transient network interruption. Triggered by NetworkError/TimedOut in the polling error callback, which happen when the host loses connectivity (Mac sleep, WiFi switch, VPN reconnect, etc.). The gateway process stays alive but the long-poll connection silently dies; without this handler the bot never recovers. Strategy: exponential back-off (5s, 10s, 20s, 40s, 60s cap) up to MAX_NETWORK_RETRIES attempts, then mark the adapter retryable-fatal so the supervisor restarts the gateway process. """ if self.has_fatal_error: return MAX_NETWORK_RETRIES = 10 BASE_DELAY = 5 MAX_DELAY = 60 self._polling_network_error_count += 1 attempt = self._polling_network_error_count if attempt > MAX_NETWORK_RETRIES: message = ( "Telegram polling could not reconnect after %d network error retries. " "Restarting gateway." % MAX_NETWORK_RETRIES ) logger.error("[%s] %s Last error: %s", self.name, message, error) self._set_fatal_error("telegram_network_error", message, retryable=True) await self._notify_fatal_error() return delay = min(BASE_DELAY * (2 ** (attempt - 1)), MAX_DELAY) logger.warning( "[%s] Telegram network error (attempt %d/%d), reconnecting in %ds. Error: %s", self.name, attempt, MAX_NETWORK_RETRIES, delay, error, ) await asyncio.sleep(delay) try: if self._app and self._app.updater and self._app.updater.running: await self._app.updater.stop() except Exception: pass try: await self._app.updater.start_polling( allowed_updates=Update.ALL_TYPES, drop_pending_updates=False, error_callback=self._polling_error_callback_ref, ) logger.info( "[%s] Telegram polling resumed after network error (attempt %d)", self.name, attempt, ) self._polling_network_error_count = 0 except Exception as retry_err: logger.warning("[%s] Telegram polling reconnect failed: %s", self.name, retry_err) # start_polling failed — polling is dead and no further error # callbacks will fire, so schedule the next retry ourselves. if not self.has_fatal_error: task = asyncio.ensure_future( self._handle_polling_network_error(retry_err) ) self._background_tasks.add(task) task.add_done_callback(self._background_tasks.discard) async def _handle_polling_conflict(self, error: Exception) -> None: if self.has_fatal_error and self.fatal_error_code == "telegram_polling_conflict": return # Track consecutive conflicts — transient 409s can occur when a # previous gateway instance hasn't fully released its long-poll # session on Telegram's server (e.g. during --replace handoffs or # systemd Restart=on-failure respawns). Retry a few times before # giving up, so the old session has time to expire. self._polling_conflict_count += 1 MAX_CONFLICT_RETRIES = 3 RETRY_DELAY = 10 # seconds if self._polling_conflict_count <= MAX_CONFLICT_RETRIES: logger.warning( "[%s] Telegram polling conflict (%d/%d), will retry in %ds. Error: %s", self.name, self._polling_conflict_count, MAX_CONFLICT_RETRIES, RETRY_DELAY, error, ) try: if self._app and self._app.updater and self._app.updater.running: await self._app.updater.stop() except Exception: pass await asyncio.sleep(RETRY_DELAY) try: await self._app.updater.start_polling( allowed_updates=Update.ALL_TYPES, drop_pending_updates=False, error_callback=self._polling_error_callback_ref, ) logger.info("[%s] Telegram polling resumed after conflict retry %d", self.name, self._polling_conflict_count) self._polling_conflict_count = 0 # reset on success return except Exception as retry_err: logger.warning("[%s] Telegram polling retry failed: %s", self.name, retry_err) # Don't fall through to fatal yet — wait for the next conflict # to trigger another retry attempt (up to MAX_CONFLICT_RETRIES). return # Exhausted retries — fatal message = ( "Another Telegram bot poller is already using this token. " "Hermes stopped Telegram polling after %d retries. " "Make sure only one gateway instance is running for this bot token." % MAX_CONFLICT_RETRIES ) logger.error("[%s] %s Original error: %s", self.name, message, error) self._set_fatal_error("telegram_polling_conflict", message, retryable=False) try: if self._app and self._app.updater: await self._app.updater.stop() except Exception as stop_error: logger.warning("[%s] Failed stopping Telegram polling after conflict: %s", self.name, stop_error, exc_info=True) await self._notify_fatal_error() async def _create_dm_topic( self, chat_id: int, name: str, icon_color: Optional[int] = None, icon_custom_emoji_id: Optional[str] = None, ) -> Optional[int]: """Create a forum topic in a private (DM) chat. Uses Bot API 9.4's createForumTopic which now works for 1-on-1 chats. Returns the message_thread_id on success, None on failure. """ if not self._bot: return None try: kwargs: Dict[str, Any] = {"chat_id": chat_id, "name": name} if icon_color is not None: kwargs["icon_color"] = icon_color if icon_custom_emoji_id: kwargs["icon_custom_emoji_id"] = icon_custom_emoji_id topic = await self._bot.create_forum_topic(**kwargs) thread_id = topic.message_thread_id logger.info( "[%s] Created DM topic '%s' in chat %s -> thread_id=%s", self.name, name, chat_id, thread_id, ) return thread_id except Exception as e: error_text = str(e).lower() # If topic already exists, try to find it via getForumTopicIconStickers # or we just log and skip — Telegram doesn't provide a "list topics" API if "topic_name_duplicate" in error_text or "already" in error_text: logger.info( "[%s] DM topic '%s' already exists in chat %s (will be mapped from incoming messages)", self.name, name, chat_id, ) else: logger.warning( "[%s] Failed to create DM topic '%s' in chat %s: %s", self.name, name, chat_id, e, ) return None def _persist_dm_topic_thread_id(self, chat_id: int, topic_name: str, thread_id: int) -> None: """Save a newly created thread_id back into config.yaml so it persists across restarts.""" try: from hermes_constants import get_hermes_home config_path = get_hermes_home() / "config.yaml" if not config_path.exists(): logger.warning("[%s] Config file not found at %s, cannot persist thread_id", self.name, config_path) return import yaml as _yaml with open(config_path, "r") as f: config = _yaml.safe_load(f) or {} # Navigate to platforms.telegram.extra.dm_topics dm_topics = ( config.get("platforms", {}) .get("telegram", {}) .get("extra", {}) .get("dm_topics", []) ) if not dm_topics: return changed = False for chat_entry in dm_topics: if int(chat_entry.get("chat_id", 0)) != int(chat_id): continue for t in chat_entry.get("topics", []): if t.get("name") == topic_name and not t.get("thread_id"): t["thread_id"] = thread_id changed = True break if changed: with open(config_path, "w") as f: _yaml.dump(config, f, default_flow_style=False, sort_keys=False) logger.info( "[%s] Persisted thread_id=%s for topic '%s' in config.yaml", self.name, thread_id, topic_name, ) except Exception as e: logger.warning("[%s] Failed to persist thread_id to config: %s", self.name, e, exc_info=True) async def _setup_dm_topics(self) -> None: """Load or create configured DM topics for specified chats. Reads config.extra['dm_topics'] — a list of dicts: [ { "chat_id": 123456789, "topics": [ {"name": "General", "icon_color": 7322096, "thread_id": 100}, {"name": "Accessibility Auditor", "icon_color": 9367192, "skill": "accessibility-auditor"} ] } ] If a topic already has a thread_id in the config (persisted from a previous creation), it is loaded into the cache without calling createForumTopic. Only topics without a thread_id are created via the API, and their thread_id is then saved back to config.yaml for future restarts. """ if not self._dm_topics_config: return for chat_entry in self._dm_topics_config: chat_id = chat_entry.get("chat_id") topics = chat_entry.get("topics", []) if not chat_id or not topics: continue logger.info( "[%s] Setting up %d DM topic(s) for chat %s", self.name, len(topics), chat_id, ) for topic_conf in topics: topic_name = topic_conf.get("name") if not topic_name: continue cache_key = f"{chat_id}:{topic_name}" # If thread_id is already persisted in config, just load into cache existing_thread_id = topic_conf.get("thread_id") if existing_thread_id: self._dm_topics[cache_key] = int(existing_thread_id) logger.info( "[%s] DM topic loaded from config: %s -> thread_id=%s", self.name, cache_key, existing_thread_id, ) continue # No persisted thread_id — create the topic via API icon_color = topic_conf.get("icon_color") icon_emoji = topic_conf.get("icon_custom_emoji_id") thread_id = await self._create_dm_topic( chat_id=int(chat_id), name=topic_name, icon_color=icon_color, icon_custom_emoji_id=icon_emoji, ) if thread_id: self._dm_topics[cache_key] = thread_id logger.info( "[%s] DM topic cached: %s -> thread_id=%s", self.name, cache_key, thread_id, ) # Persist thread_id to config so we don't recreate on next restart self._persist_dm_topic_thread_id(int(chat_id), topic_name, thread_id) async def connect(self) -> bool: """Connect to Telegram via polling or webhook. By default, uses long polling (outbound connection to Telegram). If ``TELEGRAM_WEBHOOK_URL`` is set, starts an HTTP webhook server instead. Webhook mode is useful for cloud deployments (Fly.io, Railway) where inbound HTTP can wake a suspended machine. Env vars for webhook mode:: TELEGRAM_WEBHOOK_URL Public HTTPS URL (e.g. https://app.fly.dev/telegram) TELEGRAM_WEBHOOK_PORT Local listen port (default 8443) TELEGRAM_WEBHOOK_SECRET Secret token for update verification """ if not TELEGRAM_AVAILABLE: logger.error( "[%s] python-telegram-bot not installed. Run: pip install python-telegram-bot", self.name, ) return False if not self.config.token: logger.error("[%s] No bot token configured", self.name) return False try: from gateway.status import acquire_scoped_lock self._token_lock_identity = self.config.token acquired, existing = acquire_scoped_lock( "telegram-bot-token", self._token_lock_identity, metadata={"platform": self.platform.value}, ) if not acquired: owner_pid = existing.get("pid") if isinstance(existing, dict) else None message = ( "Another local Hermes gateway is already using this Telegram bot token" + (f" (PID {owner_pid})." if owner_pid else ".") + " Stop the other gateway before starting a second Telegram poller." ) logger.error("[%s] %s", self.name, message) self._set_fatal_error("telegram_token_lock", message, retryable=False) return False # Build the application builder = Application.builder().token(self.config.token) fallback_ips = self._fallback_ips() if not fallback_ips: fallback_ips = await discover_fallback_ips() logger.info( "[%s] Auto-discovered Telegram fallback IPs: %s", self.name, ", ".join(fallback_ips), ) if fallback_ips: logger.warning( "[%s] Telegram fallback IPs active: %s", self.name, ", ".join(fallback_ips), ) transport = TelegramFallbackTransport(fallback_ips) request = HTTPXRequest(httpx_kwargs={"transport": transport}) get_updates_request = HTTPXRequest(httpx_kwargs={"transport": transport}) builder = builder.request(request).get_updates_request(get_updates_request) self._app = builder.build() self._bot = self._app.bot # Register handlers self._app.add_handler(TelegramMessageHandler( filters.TEXT & ~filters.COMMAND, self._handle_text_message )) self._app.add_handler(TelegramMessageHandler( filters.COMMAND, self._handle_command )) self._app.add_handler(TelegramMessageHandler( filters.LOCATION | getattr(filters, "VENUE", filters.LOCATION), self._handle_location_message )) self._app.add_handler(TelegramMessageHandler( filters.PHOTO | filters.VIDEO | filters.AUDIO | filters.VOICE | filters.Document.ALL | filters.Sticker.ALL, self._handle_media_message )) # Start polling — retry initialize() for transient TLS resets try: from telegram.error import NetworkError, TimedOut except ImportError: NetworkError = TimedOut = OSError # type: ignore[misc,assignment] _max_connect = 3 for _attempt in range(_max_connect): try: await self._app.initialize() break except (NetworkError, TimedOut, OSError) as init_err: if _attempt < _max_connect - 1: wait = 2 ** _attempt logger.warning( "[%s] Connect attempt %d/%d failed: %s — retrying in %ds", self.name, _attempt + 1, _max_connect, init_err, wait, ) await asyncio.sleep(wait) else: raise await self._app.start() # Decide between webhook and polling mode webhook_url = os.getenv("TELEGRAM_WEBHOOK_URL", "").strip() if webhook_url: # ── Webhook mode ───────────────────────────────────── # Telegram pushes updates to our HTTP endpoint. This # enables cloud platforms (Fly.io, Railway) to auto-wake # suspended machines on inbound HTTP traffic. webhook_port = int(os.getenv("TELEGRAM_WEBHOOK_PORT", "8443")) webhook_secret = os.getenv("TELEGRAM_WEBHOOK_SECRET", "").strip() or None from urllib.parse import urlparse webhook_path = urlparse(webhook_url).path or "/telegram" await self._app.updater.start_webhook( listen="0.0.0.0", port=webhook_port, url_path=webhook_path, webhook_url=webhook_url, secret_token=webhook_secret, allowed_updates=Update.ALL_TYPES, drop_pending_updates=True, ) self._webhook_mode = True logger.info( "[%s] Webhook server listening on 0.0.0.0:%d%s", self.name, webhook_port, webhook_path, ) else: # ── Polling mode (default) ─────────────────────────── loop = asyncio.get_running_loop() def _polling_error_callback(error: Exception) -> None: if self._polling_error_task and not self._polling_error_task.done(): return if self._looks_like_polling_conflict(error): self._polling_error_task = loop.create_task(self._handle_polling_conflict(error)) elif self._looks_like_network_error(error): logger.warning("[%s] Telegram network error, scheduling reconnect: %s", self.name, error) self._polling_error_task = loop.create_task(self._handle_polling_network_error(error)) else: logger.error("[%s] Telegram polling error: %s", self.name, error, exc_info=True) # Store reference for retry use in _handle_polling_conflict self._polling_error_callback_ref = _polling_error_callback await self._app.updater.start_polling( allowed_updates=Update.ALL_TYPES, drop_pending_updates=True, error_callback=_polling_error_callback, ) # Register bot commands so Telegram shows a hint menu when users type / # List is derived from the central COMMAND_REGISTRY — adding a new # gateway command there automatically adds it to the Telegram menu. try: from telegram import BotCommand from hermes_cli.commands import telegram_bot_commands await self._bot.set_my_commands([ BotCommand(name, desc) for name, desc in telegram_bot_commands() ]) except Exception as e: logger.warning( "[%s] Could not register Telegram command menu: %s", self.name, e, exc_info=True, ) self._mark_connected() mode = "webhook" if self._webhook_mode else "polling" logger.info("[%s] Connected to Telegram (%s mode)", self.name, mode) # Set up DM topics (Bot API 9.4 — Private Chat Topics) # Runs after connection is established so the bot can call createForumTopic. # Failures here are non-fatal — the bot works fine without topics. try: await self._setup_dm_topics() except Exception as topics_err: logger.warning( "[%s] DM topics setup failed (non-fatal): %s", self.name, topics_err, exc_info=True, ) return True except Exception as e: if self._token_lock_identity: try: from gateway.status import release_scoped_lock release_scoped_lock("telegram-bot-token", self._token_lock_identity) except Exception: pass message = f"Telegram startup failed: {e}" self._set_fatal_error("telegram_connect_error", message, retryable=True) logger.error("[%s] Failed to connect to Telegram: %s", self.name, e, exc_info=True) return False async def disconnect(self) -> None: """Stop polling/webhook, cancel pending album flushes, and disconnect.""" pending_media_group_tasks = list(self._media_group_tasks.values()) for task in pending_media_group_tasks: task.cancel() if pending_media_group_tasks: await asyncio.gather(*pending_media_group_tasks, return_exceptions=True) self._media_group_tasks.clear() self._media_group_events.clear() if self._app: try: # Only stop the updater if it's running if self._app.updater and self._app.updater.running: await self._app.updater.stop() if self._app.running: await self._app.stop() await self._app.shutdown() except Exception as e: logger.warning("[%s] Error during Telegram disconnect: %s", self.name, e, exc_info=True) if self._token_lock_identity: try: from gateway.status import release_scoped_lock release_scoped_lock("telegram-bot-token", self._token_lock_identity) except Exception as e: logger.warning("[%s] Error releasing Telegram token lock: %s", self.name, e, exc_info=True) for task in self._pending_photo_batch_tasks.values(): if task and not task.done(): task.cancel() self._pending_photo_batch_tasks.clear() self._pending_photo_batches.clear() self._mark_disconnected() self._app = None self._bot = None self._token_lock_identity = None logger.info("[%s] Disconnected from Telegram", self.name) def _should_thread_reply(self, reply_to: Optional[str], chunk_index: int) -> bool: """Determine if this message chunk should thread to the original message. Args: reply_to: The original message ID to reply to chunk_index: Index of this chunk (0 = first chunk) Returns: True if this chunk should be threaded to the original message """ if not reply_to: return False mode = self._reply_to_mode if mode == "off": return False elif mode == "all": return True else: # "first" (default) return chunk_index == 0 async def send( self, chat_id: str, content: str, reply_to: Optional[str] = None, metadata: Optional[Dict[str, Any]] = None ) -> SendResult: """Send a message to a Telegram chat.""" if not self._bot: return SendResult(success=False, error="Not connected") try: # Format and split message if needed formatted = self.format_message(content) chunks = self.truncate_message(formatted, self.MAX_MESSAGE_LENGTH) if len(chunks) > 1: # truncate_message appends a raw " (1/2)" suffix. Escape the # MarkdownV2-special parentheses so Telegram doesn't reject the # chunk and fall back to plain text. chunks = [ re.sub(r" \((\d+)/(\d+)\)$", r" \\(\1/\2\\)", chunk) for chunk in chunks ] message_ids = [] thread_id = metadata.get("thread_id") if metadata else None try: from telegram.error import NetworkError as _NetErr except ImportError: _NetErr = OSError # type: ignore[misc,assignment] try: from telegram.error import BadRequest as _BadReq except ImportError: _BadReq = None # type: ignore[assignment,misc] for i, chunk in enumerate(chunks): should_thread = self._should_thread_reply(reply_to, i) reply_to_id = int(reply_to) if should_thread else None effective_thread_id = int(thread_id) if thread_id else None msg = None for _send_attempt in range(3): try: # Try Markdown first, fall back to plain text if it fails try: msg = await self._bot.send_message( chat_id=int(chat_id), text=chunk, parse_mode=ParseMode.MARKDOWN_V2, reply_to_message_id=reply_to_id, message_thread_id=effective_thread_id, ) except Exception as md_error: # Markdown parsing failed, try plain text if "parse" in str(md_error).lower() or "markdown" in str(md_error).lower(): logger.warning("[%s] MarkdownV2 parse failed, falling back to plain text: %s", self.name, md_error) plain_chunk = _strip_mdv2(chunk) msg = await self._bot.send_message( chat_id=int(chat_id), text=plain_chunk, parse_mode=None, reply_to_message_id=reply_to_id, message_thread_id=effective_thread_id, ) else: raise break # success except _NetErr as send_err: # BadRequest is a subclass of NetworkError in # python-telegram-bot but represents permanent errors # (not transient network issues). Detect and handle # specific cases instead of blindly retrying. if _BadReq and isinstance(send_err, _BadReq): err_lower = str(send_err).lower() if "thread not found" in err_lower and effective_thread_id is not None: # Thread doesn't exist — retry without # message_thread_id so the message still # reaches the chat. logger.warning( "[%s] Thread %s not found, retrying without message_thread_id", self.name, effective_thread_id, ) effective_thread_id = None continue if "message to be replied not found" in err_lower and reply_to_id is not None: # Original message was deleted before we # could reply — clear reply target and retry # so the response is still delivered. logger.warning( "[%s] Reply target deleted, retrying without reply_to: %s", self.name, send_err, ) reply_to_id = None continue # Other BadRequest errors are permanent — don't retry raise if _send_attempt < 2: wait = 2 ** _send_attempt logger.warning("[%s] Network error on send (attempt %d/3), retrying in %ds: %s", self.name, _send_attempt + 1, wait, send_err) await asyncio.sleep(wait) else: raise message_ids.append(str(msg.message_id)) return SendResult( success=True, message_id=message_ids[0] if message_ids else None, raw_response={"message_ids": message_ids} ) except Exception as e: logger.error("[%s] Failed to send Telegram message: %s", self.name, e, exc_info=True) return SendResult(success=False, error=str(e)) async def edit_message( self, chat_id: str, message_id: str, content: str, ) -> SendResult: """Edit a previously sent Telegram message.""" if not self._bot: return SendResult(success=False, error="Not connected") try: formatted = self.format_message(content) try: await self._bot.edit_message_text( chat_id=int(chat_id), message_id=int(message_id), text=formatted, parse_mode=ParseMode.MARKDOWN_V2, ) except Exception as fmt_err: # "Message is not modified" is a no-op, not an error if "not modified" in str(fmt_err).lower(): return SendResult(success=True, message_id=message_id) # Fallback: retry without markdown formatting await self._bot.edit_message_text( chat_id=int(chat_id), message_id=int(message_id), text=content, ) return SendResult(success=True, message_id=message_id) except Exception as e: err_str = str(e).lower() # "Message is not modified" — content identical, treat as success if "not modified" in err_str: return SendResult(success=True, message_id=message_id) # Message too long — content exceeded 4096 chars (e.g. during # streaming). Truncate and succeed so the stream consumer can # split the overflow into a new message instead of dying. if "message_too_long" in err_str or "too long" in err_str: truncated = content[: self.MAX_MESSAGE_LENGTH - 20] + "…" try: await self._bot.edit_message_text( chat_id=int(chat_id), message_id=int(message_id), text=truncated, ) except Exception: pass # best-effort truncation return SendResult(success=True, message_id=message_id) # Flood control / RetryAfter — back off and retry once retry_after = getattr(e, "retry_after", None) if retry_after is not None or "retry after" in err_str: wait = retry_after if retry_after else 1.0 logger.warning( "[%s] Telegram flood control, waiting %.1fs", self.name, wait, ) await asyncio.sleep(wait) try: await self._bot.edit_message_text( chat_id=int(chat_id), message_id=int(message_id), text=content, ) return SendResult(success=True, message_id=message_id) except Exception as retry_err: logger.error( "[%s] Edit retry failed after flood wait: %s", self.name, retry_err, ) return SendResult(success=False, error=str(retry_err)) logger.error( "[%s] Failed to edit Telegram message %s: %s", self.name, message_id, e, exc_info=True, ) return SendResult(success=False, error=str(e)) async def send_voice( self, chat_id: str, audio_path: str, caption: Optional[str] = None, reply_to: Optional[str] = None, metadata: Optional[Dict[str, Any]] = None, **kwargs, ) -> SendResult: """Send audio as a native Telegram voice message or audio file.""" if not self._bot: return SendResult(success=False, error="Not connected") try: import os if not os.path.exists(audio_path): return SendResult(success=False, error=f"Audio file not found: {audio_path}") with open(audio_path, "rb") as audio_file: # .ogg files -> send as voice (round playable bubble) if audio_path.endswith(".ogg") or audio_path.endswith(".opus"): _voice_thread = metadata.get("thread_id") if metadata else None msg = await self._bot.send_voice( chat_id=int(chat_id), voice=audio_file, caption=caption[:1024] if caption else None, reply_to_message_id=int(reply_to) if reply_to else None, message_thread_id=int(_voice_thread) if _voice_thread else None, ) else: # .mp3 and others -> send as audio file _audio_thread = metadata.get("thread_id") if metadata else None msg = await self._bot.send_audio( chat_id=int(chat_id), audio=audio_file, caption=caption[:1024] if caption else None, reply_to_message_id=int(reply_to) if reply_to else None, message_thread_id=int(_audio_thread) if _audio_thread else None, ) return SendResult(success=True, message_id=str(msg.message_id)) except Exception as e: logger.error( "[%s] Failed to send Telegram voice/audio, falling back to base adapter: %s", self.name, e, exc_info=True, ) return await super().send_voice(chat_id, audio_path, caption, reply_to) async def send_image_file( self, chat_id: str, image_path: str, caption: Optional[str] = None, reply_to: Optional[str] = None, metadata: Optional[Dict[str, Any]] = None, **kwargs, ) -> SendResult: """Send a local image file natively as a Telegram photo.""" if not self._bot: return SendResult(success=False, error="Not connected") try: import os if not os.path.exists(image_path): return SendResult(success=False, error=f"Image file not found: {image_path}") _thread = metadata.get("thread_id") if metadata else None with open(image_path, "rb") as image_file: msg = await self._bot.send_photo( chat_id=int(chat_id), photo=image_file, caption=caption[:1024] if caption else None, reply_to_message_id=int(reply_to) if reply_to else None, message_thread_id=int(_thread) if _thread else None, ) return SendResult(success=True, message_id=str(msg.message_id)) except Exception as e: logger.error( "[%s] Failed to send Telegram local image, falling back to base adapter: %s", self.name, e, exc_info=True, ) return await super().send_image_file(chat_id, image_path, caption, reply_to) async def send_document( self, chat_id: str, file_path: str, caption: Optional[str] = None, file_name: Optional[str] = None, reply_to: Optional[str] = None, metadata: Optional[Dict[str, Any]] = None, **kwargs, ) -> SendResult: """Send a document/file natively as a Telegram file attachment.""" if not self._bot: return SendResult(success=False, error="Not connected") try: if not os.path.exists(file_path): return SendResult(success=False, error=f"File not found: {file_path}") display_name = file_name or os.path.basename(file_path) _thread = metadata.get("thread_id") if metadata else None with open(file_path, "rb") as f: msg = await self._bot.send_document( chat_id=int(chat_id), document=f, filename=display_name, caption=caption[:1024] if caption else None, reply_to_message_id=int(reply_to) if reply_to else None, message_thread_id=int(_thread) if _thread else None, ) return SendResult(success=True, message_id=str(msg.message_id)) except Exception as e: print(f"[{self.name}] Failed to send document: {e}") return await super().send_document(chat_id, file_path, caption, file_name, reply_to) async def send_video( self, chat_id: str, video_path: str, caption: Optional[str] = None, reply_to: Optional[str] = None, metadata: Optional[Dict[str, Any]] = None, **kwargs, ) -> SendResult: """Send a video natively as a Telegram video message.""" if not self._bot: return SendResult(success=False, error="Not connected") try: if not os.path.exists(video_path): return SendResult(success=False, error=f"Video file not found: {video_path}") _thread = metadata.get("thread_id") if metadata else None with open(video_path, "rb") as f: msg = await self._bot.send_video( chat_id=int(chat_id), video=f, caption=caption[:1024] if caption else None, reply_to_message_id=int(reply_to) if reply_to else None, message_thread_id=int(_thread) if _thread else None, ) return SendResult(success=True, message_id=str(msg.message_id)) except Exception as e: print(f"[{self.name}] Failed to send video: {e}") return await super().send_video(chat_id, video_path, caption, reply_to) async def send_image( self, chat_id: str, image_url: str, caption: Optional[str] = None, reply_to: Optional[str] = None, metadata: Optional[Dict[str, Any]] = None, ) -> SendResult: """Send an image natively as a Telegram photo. Tries URL-based send first (fast, works for <5MB images). Falls back to downloading and uploading as file (supports up to 10MB). """ if not self._bot: return SendResult(success=False, error="Not connected") try: # Telegram can send photos directly from URLs (up to ~5MB) _photo_thread = metadata.get("thread_id") if metadata else None msg = await self._bot.send_photo( chat_id=int(chat_id), photo=image_url, caption=caption[:1024] if caption else None, # Telegram caption limit reply_to_message_id=int(reply_to) if reply_to else None, message_thread_id=int(_photo_thread) if _photo_thread else None, ) return SendResult(success=True, message_id=str(msg.message_id)) except Exception as e: logger.warning( "[%s] URL-based send_photo failed, trying file upload: %s", self.name, e, exc_info=True, ) # Fallback: download and upload as file (supports up to 10MB) try: import httpx async with httpx.AsyncClient(timeout=30.0) as client: resp = await client.get(image_url) resp.raise_for_status() image_data = resp.content msg = await self._bot.send_photo( chat_id=int(chat_id), photo=image_data, caption=caption[:1024] if caption else None, reply_to_message_id=int(reply_to) if reply_to else None, ) return SendResult(success=True, message_id=str(msg.message_id)) except Exception as e2: logger.error( "[%s] File upload send_photo also failed: %s", self.name, e2, exc_info=True, ) # Final fallback: send URL as text return await super().send_image(chat_id, image_url, caption, reply_to) async def send_animation( self, chat_id: str, animation_url: str, caption: Optional[str] = None, reply_to: Optional[str] = None, metadata: Optional[Dict[str, Any]] = None, ) -> SendResult: """Send an animated GIF natively as a Telegram animation (auto-plays inline).""" if not self._bot: return SendResult(success=False, error="Not connected") try: _anim_thread = metadata.get("thread_id") if metadata else None msg = await self._bot.send_animation( chat_id=int(chat_id), animation=animation_url, caption=caption[:1024] if caption else None, reply_to_message_id=int(reply_to) if reply_to else None, message_thread_id=int(_anim_thread) if _anim_thread else None, ) return SendResult(success=True, message_id=str(msg.message_id)) except Exception as e: logger.error( "[%s] Failed to send Telegram animation, falling back to photo: %s", self.name, e, exc_info=True, ) # Fallback: try as a regular photo return await self.send_image(chat_id, animation_url, caption, reply_to) async def send_typing(self, chat_id: str, metadata: Optional[Dict[str, Any]] = None) -> None: """Send typing indicator.""" if self._bot: try: _typing_thread = metadata.get("thread_id") if metadata else None await self._bot.send_chat_action( chat_id=int(chat_id), action="typing", message_thread_id=int(_typing_thread) if _typing_thread else None, ) except Exception as e: # Typing failures are non-fatal; log at debug level only. logger.debug( "[%s] Failed to send Telegram typing indicator: %s", self.name, e, exc_info=True, ) async def get_chat_info(self, chat_id: str) -> Dict[str, Any]: """Get information about a Telegram chat.""" if not self._bot: return {"name": "Unknown", "type": "dm"} try: chat = await self._bot.get_chat(int(chat_id)) chat_type = "dm" if chat.type == ChatType.GROUP: chat_type = "group" elif chat.type == ChatType.SUPERGROUP: chat_type = "group" if chat.is_forum: chat_type = "forum" elif chat.type == ChatType.CHANNEL: chat_type = "channel" return { "name": chat.title or chat.full_name or str(chat_id), "type": chat_type, "username": chat.username, "is_forum": getattr(chat, "is_forum", False), } except Exception as e: logger.error( "[%s] Failed to get Telegram chat info for %s: %s", self.name, chat_id, e, exc_info=True, ) return {"name": str(chat_id), "type": "dm", "error": str(e)} def format_message(self, content: str) -> str: """ Convert standard markdown to Telegram MarkdownV2 format. Protected regions (code blocks, inline code) are extracted first so their contents are never modified. Standard markdown constructs (headers, bold, italic, links) are translated to MarkdownV2 syntax, and all remaining special characters are escaped. """ if not content: return content placeholders: dict = {} counter = [0] def _ph(value: str) -> str: """Stash *value* behind a placeholder token that survives escaping.""" key = f"\x00PH{counter[0]}\x00" counter[0] += 1 placeholders[key] = value return key text = content # 1) Protect fenced code blocks (``` ... ```) # Per MarkdownV2 spec, \ and ` inside pre/code must be escaped. def _protect_fenced(m): raw = m.group(0) # Split off opening ``` (with optional language) and closing ``` open_end = raw.index('\n') + 1 if '\n' in raw[3:] else 3 opening = raw[:open_end] body_and_close = raw[open_end:] body = body_and_close[:-3] body = body.replace('\\', '\\\\').replace('`', '\\`') return _ph(opening + body + '```') text = re.sub( r'(```(?:[^\n]*\n)?[\s\S]*?```)', _protect_fenced, text, ) # 2) Protect inline code (`...`) # Escape \ inside inline code per MarkdownV2 spec. text = re.sub( r'(`[^`]+`)', lambda m: _ph(m.group(0).replace('\\', '\\\\')), text, ) # 3) Convert markdown links – escape the display text; inside the URL # only ')' and '\' need escaping per the MarkdownV2 spec. def _convert_link(m): display = _escape_mdv2(m.group(1)) url = m.group(2).replace('\\', '\\\\').replace(')', '\\)') return _ph(f'[{display}]({url})') text = re.sub(r'\[([^\]]+)\]\(([^)]+)\)', _convert_link, text) # 4) Convert markdown headers (## Title) → bold *Title* def _convert_header(m): inner = m.group(1).strip() # Strip redundant bold markers that may appear inside a header inner = re.sub(r'\*\*(.+?)\*\*', r'\1', inner) return _ph(f'*{_escape_mdv2(inner)}*') text = re.sub( r'^#{1,6}\s+(.+)$', _convert_header, text, flags=re.MULTILINE ) # 5) Convert bold: **text** → *text* (MarkdownV2 bold) text = re.sub( r'\*\*(.+?)\*\*', lambda m: _ph(f'*{_escape_mdv2(m.group(1))}*'), text, ) # 6) Convert italic: *text* (single asterisk) → _text_ (MarkdownV2 italic) # [^*\n]+ prevents matching across newlines (which would corrupt # bullet lists using * markers and multi-line content). text = re.sub( r'\*([^*\n]+)\*', lambda m: _ph(f'_{_escape_mdv2(m.group(1))}_'), text, ) # 7) Convert strikethrough: ~~text~~ → ~text~ (MarkdownV2) text = re.sub( r'~~(.+?)~~', lambda m: _ph(f'~{_escape_mdv2(m.group(1))}~'), text, ) # 8) Convert spoiler: ||text|| → ||text|| (protect from | escaping) text = re.sub( r'\|\|(.+?)\|\|', lambda m: _ph(f'||{_escape_mdv2(m.group(1))}||'), text, ) # 9) Convert blockquotes: > at line start → protect > from escaping text = re.sub( r'^(>{1,3}) (.+)$', lambda m: _ph(m.group(1) + ' ' + _escape_mdv2(m.group(2))), text, flags=re.MULTILINE, ) # 10) Escape remaining special characters in plain text text = _escape_mdv2(text) # 11) Restore placeholders in reverse insertion order so that # nested references (a placeholder inside another) resolve correctly. for key in reversed(list(placeholders.keys())): text = text.replace(key, placeholders[key]) # 12) Safety net: escape unescaped ( ) { } that slipped through # placeholder processing. Split the text into code/non-code # segments so we never touch content inside ``` or ` spans. _code_split = re.split(r'(```[\s\S]*?```|`[^`]+`)', text) _safe_parts = [] for _idx, _seg in enumerate(_code_split): if _idx % 2 == 1: # Inside code span/block — leave untouched _safe_parts.append(_seg) else: # Outside code — escape bare ( ) { } def _esc_bare(m, _seg=_seg): s = m.start() ch = m.group(0) # Already escaped if s > 0 and _seg[s - 1] == '\\': return ch # ( that opens a MarkdownV2 link [text](url) if ch == '(' and s > 0 and _seg[s - 1] == ']': return ch # ) that closes a link URL if ch == ')': before = _seg[:s] if '](http' in before or '](' in before: # Check depth depth = 0 for j in range(s - 1, max(s - 2000, -1), -1): if _seg[j] == '(': depth -= 1 if depth < 0: if j > 0 and _seg[j - 1] == ']': return ch break elif _seg[j] == ')': depth += 1 return '\\' + ch _safe_parts.append(re.sub(r'[(){}]', _esc_bare, _seg)) text = ''.join(_safe_parts) return text # ── Group mention gating ────────────────────────────────────────────── def _telegram_require_mention(self) -> bool: """Return whether group chats should require an explicit bot trigger.""" configured = self.config.extra.get("require_mention") if configured is not None: if isinstance(configured, str): return configured.lower() in ("true", "1", "yes", "on") return bool(configured) return os.getenv("TELEGRAM_REQUIRE_MENTION", "false").lower() in ("true", "1", "yes", "on") def _telegram_free_response_chats(self) -> set[str]: raw = self.config.extra.get("free_response_chats") if raw is None: raw = os.getenv("TELEGRAM_FREE_RESPONSE_CHATS", "") if isinstance(raw, list): return {str(part).strip() for part in raw if str(part).strip()} return {part.strip() for part in str(raw).split(",") if part.strip()} def _compile_mention_patterns(self) -> List[re.Pattern]: """Compile optional regex wake-word patterns for group triggers.""" patterns = self.config.extra.get("mention_patterns") if patterns is None: raw = os.getenv("TELEGRAM_MENTION_PATTERNS", "").strip() if raw: try: loaded = json.loads(raw) except Exception: loaded = [part.strip() for part in raw.splitlines() if part.strip()] if not loaded: loaded = [part.strip() for part in raw.split(",") if part.strip()] patterns = loaded if patterns is None: return [] if isinstance(patterns, str): patterns = [patterns] if not isinstance(patterns, list): logger.warning( "[%s] telegram mention_patterns must be a list or string; got %s", self.name, type(patterns).__name__, ) return [] compiled: List[re.Pattern] = [] for pattern in patterns: if not isinstance(pattern, str) or not pattern.strip(): continue try: compiled.append(re.compile(pattern, re.IGNORECASE)) except re.error as exc: logger.warning("[%s] Invalid Telegram mention pattern %r: %s", self.name, pattern, exc) if compiled: logger.info("[%s] Loaded %d Telegram mention pattern(s)", self.name, len(compiled)) return compiled def _is_group_chat(self, message: Message) -> bool: chat = getattr(message, "chat", None) if not chat: return False chat_type = str(getattr(chat, "type", "")).split(".")[-1].lower() return chat_type in ("group", "supergroup") def _is_reply_to_bot(self, message: Message) -> bool: if not self._bot or not getattr(message, "reply_to_message", None): return False reply_user = getattr(message.reply_to_message, "from_user", None) return bool(reply_user and getattr(reply_user, "id", None) == getattr(self._bot, "id", None)) def _message_mentions_bot(self, message: Message) -> bool: if not self._bot: return False bot_username = (getattr(self._bot, "username", None) or "").lstrip("@").lower() bot_id = getattr(self._bot, "id", None) def _iter_sources(): yield getattr(message, "text", None) or "", getattr(message, "entities", None) or [] yield getattr(message, "caption", None) or "", getattr(message, "caption_entities", None) or [] for source_text, entities in _iter_sources(): if bot_username and f"@{bot_username}" in source_text.lower(): return True for entity in entities: entity_type = str(getattr(entity, "type", "")).split(".")[-1].lower() if entity_type == "mention" and bot_username: offset = int(getattr(entity, "offset", -1)) length = int(getattr(entity, "length", 0)) if offset < 0 or length <= 0: continue if source_text[offset:offset + length].strip().lower() == f"@{bot_username}": return True elif entity_type == "text_mention": user = getattr(entity, "user", None) if user and getattr(user, "id", None) == bot_id: return True return False def _message_matches_mention_patterns(self, message: Message) -> bool: if not self._mention_patterns: return False for candidate in (getattr(message, "text", None), getattr(message, "caption", None)): if not candidate: continue for pattern in self._mention_patterns: if pattern.search(candidate): return True return False def _clean_bot_trigger_text(self, text: Optional[str]) -> Optional[str]: if not text or not self._bot or not getattr(self._bot, "username", None): return text username = re.escape(self._bot.username) cleaned = re.sub(rf"(?i)@{username}\b[,:\-]*\s*", "", text).strip() return cleaned or text def _should_process_message(self, message: Message, *, is_command: bool = False) -> bool: """Apply Telegram group trigger rules. DMs remain unrestricted. Group/supergroup messages are accepted when: - the chat is explicitly allowlisted in ``free_response_chats`` - ``require_mention`` is disabled - the message is a command - the message replies to the bot - the bot is @mentioned - the text/caption matches a configured regex wake-word pattern """ if not self._is_group_chat(message): return True if str(getattr(getattr(message, "chat", None), "id", "")) in self._telegram_free_response_chats(): return True if not self._telegram_require_mention(): return True if is_command: return True if self._is_reply_to_bot(message): return True if self._message_mentions_bot(message): return True return self._message_matches_mention_patterns(message) async def _handle_text_message(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: """Handle incoming text messages. Telegram clients split long messages into multiple updates. Buffer rapid successive text messages from the same user/chat and aggregate them into a single MessageEvent before dispatching. """ if not update.message or not update.message.text: return if not self._should_process_message(update.message): return event = self._build_message_event(update.message, MessageType.TEXT) event.text = self._clean_bot_trigger_text(event.text) self._enqueue_text_event(event) async def _handle_command(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: """Handle incoming command messages.""" if not update.message or not update.message.text: return if not self._should_process_message(update.message, is_command=True): return event = self._build_message_event(update.message, MessageType.COMMAND) await self.handle_message(event) async def _handle_location_message(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: """Handle incoming location/venue pin messages.""" if not update.message: return if not self._should_process_message(update.message): return msg = update.message venue = getattr(msg, "venue", None) location = getattr(venue, "location", None) if venue else getattr(msg, "location", None) if not location: return lat = getattr(location, "latitude", None) lon = getattr(location, "longitude", None) if lat is None or lon is None: return # Build a text message with coordinates and context parts = ["[The user shared a location pin.]"] if venue: title = getattr(venue, "title", None) address = getattr(venue, "address", None) if title: parts.append(f"Venue: {title}") if address: parts.append(f"Address: {address}") parts.append(f"latitude: {lat}") parts.append(f"longitude: {lon}") parts.append(f"Map: https://www.google.com/maps/search/?api=1&query={lat},{lon}") parts.append("Ask what they'd like to find nearby (restaurants, cafes, etc.) and any preferences.") event = self._build_message_event(msg, MessageType.LOCATION) event.text = "\n".join(parts) await self.handle_message(event) # ------------------------------------------------------------------ # Text message aggregation (handles Telegram client-side splits) # ------------------------------------------------------------------ def _text_batch_key(self, event: MessageEvent) -> str: """Session-scoped key for text message batching.""" from gateway.session import build_session_key return build_session_key( event.source, group_sessions_per_user=self.config.extra.get("group_sessions_per_user", True), ) def _enqueue_text_event(self, event: MessageEvent) -> None: """Buffer a text event and reset the flush timer. When Telegram splits a long user message into multiple updates, they arrive within a few hundred milliseconds. This method concatenates them and waits for a short quiet period before dispatching the combined message. """ key = self._text_batch_key(event) existing = self._pending_text_batches.get(key) if existing is None: self._pending_text_batches[key] = event else: # Append text from the follow-up chunk if event.text: existing.text = f"{existing.text}\n{event.text}" if existing.text else event.text # Merge any media that might be attached if event.media_urls: existing.media_urls.extend(event.media_urls) existing.media_types.extend(event.media_types) # Cancel any pending flush and restart the timer prior_task = self._pending_text_batch_tasks.get(key) if prior_task and not prior_task.done(): prior_task.cancel() self._pending_text_batch_tasks[key] = asyncio.create_task( self._flush_text_batch(key) ) async def _flush_text_batch(self, key: str) -> None: """Wait for the quiet period then dispatch the aggregated text.""" current_task = asyncio.current_task() try: await asyncio.sleep(self._text_batch_delay_seconds) event = self._pending_text_batches.pop(key, None) if not event: return logger.info( "[Telegram] Flushing text batch %s (%d chars)", key, len(event.text or ""), ) await self.handle_message(event) finally: if self._pending_text_batch_tasks.get(key) is current_task: self._pending_text_batch_tasks.pop(key, None) # ------------------------------------------------------------------ # Photo batching # ------------------------------------------------------------------ def _photo_batch_key(self, event: MessageEvent, msg: Message) -> str: """Return a batching key for Telegram photos/albums.""" from gateway.session import build_session_key session_key = build_session_key( event.source, group_sessions_per_user=self.config.extra.get("group_sessions_per_user", True), ) media_group_id = getattr(msg, "media_group_id", None) if media_group_id: return f"{session_key}:album:{media_group_id}" return f"{session_key}:photo-burst" async def _flush_photo_batch(self, batch_key: str) -> None: """Send a buffered photo burst/album as a single MessageEvent.""" current_task = asyncio.current_task() try: await asyncio.sleep(self._media_batch_delay_seconds) event = self._pending_photo_batches.pop(batch_key, None) if not event: return logger.info("[Telegram] Flushing photo batch %s with %d image(s)", batch_key, len(event.media_urls)) await self.handle_message(event) finally: if self._pending_photo_batch_tasks.get(batch_key) is current_task: self._pending_photo_batch_tasks.pop(batch_key, None) def _enqueue_photo_event(self, batch_key: str, event: MessageEvent) -> None: """Merge photo events into a pending batch and schedule flush.""" existing = self._pending_photo_batches.get(batch_key) if existing is None: self._pending_photo_batches[batch_key] = event else: existing.media_urls.extend(event.media_urls) existing.media_types.extend(event.media_types) if event.text: if not existing.text: existing.text = event.text elif event.text not in existing.text: existing.text = f"{existing.text}\n\n{event.text}".strip() prior_task = self._pending_photo_batch_tasks.get(batch_key) if prior_task and not prior_task.done(): prior_task.cancel() self._pending_photo_batch_tasks[batch_key] = asyncio.create_task(self._flush_photo_batch(batch_key)) async def _handle_media_message(self, update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: """Handle incoming media messages, downloading images to local cache.""" if not update.message: return if not self._should_process_message(update.message): return msg = update.message # Determine media type if msg.sticker: msg_type = MessageType.STICKER elif msg.photo: msg_type = MessageType.PHOTO elif msg.video: msg_type = MessageType.VIDEO elif msg.audio: msg_type = MessageType.AUDIO elif msg.voice: msg_type = MessageType.VOICE elif msg.document: msg_type = MessageType.DOCUMENT else: msg_type = MessageType.DOCUMENT event = self._build_message_event(msg, msg_type) # Add caption as text if msg.caption: event.text = self._clean_bot_trigger_text(msg.caption) # Handle stickers: describe via vision tool with caching if msg.sticker: await self._handle_sticker(msg, event) await self.handle_message(event) return # Download photo to local image cache so the vision tool can access it # even after Telegram's ephemeral file URLs expire (~1 hour). if msg.photo: try: # msg.photo is a list of PhotoSize sorted by size; take the largest photo = msg.photo[-1] file_obj = await photo.get_file() # Download the image bytes directly into memory image_bytes = await file_obj.download_as_bytearray() # Determine extension from the file path if available ext = ".jpg" if file_obj.file_path: for candidate in [".png", ".webp", ".gif", ".jpeg", ".jpg"]: if file_obj.file_path.lower().endswith(candidate): ext = candidate break # Save to local cache (for vision tool access) cached_path = cache_image_from_bytes(bytes(image_bytes), ext=ext) event.media_urls = [cached_path] event.media_types = [f"image/{ext.lstrip('.')}" ] logger.info("[Telegram] Cached user photo at %s", cached_path) media_group_id = getattr(msg, "media_group_id", None) if media_group_id: await self._queue_media_group_event(str(media_group_id), event) else: batch_key = self._photo_batch_key(event, msg) self._enqueue_photo_event(batch_key, event) return except Exception as e: logger.warning("[Telegram] Failed to cache photo: %s", e, exc_info=True) # Download voice/audio messages to cache for STT transcription if msg.voice: try: file_obj = await msg.voice.get_file() audio_bytes = await file_obj.download_as_bytearray() cached_path = cache_audio_from_bytes(bytes(audio_bytes), ext=".ogg") event.media_urls = [cached_path] event.media_types = ["audio/ogg"] logger.info("[Telegram] Cached user voice at %s", cached_path) except Exception as e: logger.warning("[Telegram] Failed to cache voice: %s", e, exc_info=True) elif msg.audio: try: file_obj = await msg.audio.get_file() audio_bytes = await file_obj.download_as_bytearray() cached_path = cache_audio_from_bytes(bytes(audio_bytes), ext=".mp3") event.media_urls = [cached_path] event.media_types = ["audio/mp3"] logger.info("[Telegram] Cached user audio at %s", cached_path) except Exception as e: logger.warning("[Telegram] Failed to cache audio: %s", e, exc_info=True) # Download document files to cache for agent processing elif msg.document: doc = msg.document try: # Determine file extension ext = "" original_filename = doc.file_name or "" if original_filename: _, ext = os.path.splitext(original_filename) ext = ext.lower() # If no extension from filename, reverse-lookup from MIME type if not ext and doc.mime_type: mime_to_ext = {v: k for k, v in SUPPORTED_DOCUMENT_TYPES.items()} ext = mime_to_ext.get(doc.mime_type, "") # Check if supported if ext not in SUPPORTED_DOCUMENT_TYPES: supported_list = ", ".join(sorted(SUPPORTED_DOCUMENT_TYPES.keys())) event.text = ( f"Unsupported document type '{ext or 'unknown'}'. " f"Supported types: {supported_list}" ) logger.info("[Telegram] Unsupported document type: %s", ext or "unknown") await self.handle_message(event) return # Check file size (Telegram Bot API limit: 20 MB) MAX_DOC_BYTES = 20 * 1024 * 1024 if not doc.file_size or doc.file_size > MAX_DOC_BYTES: event.text = ( "The document is too large or its size could not be verified. " "Maximum: 20 MB." ) logger.info("[Telegram] Document too large: %s bytes", doc.file_size) await self.handle_message(event) return # Download and cache file_obj = await doc.get_file() doc_bytes = await file_obj.download_as_bytearray() raw_bytes = bytes(doc_bytes) cached_path = cache_document_from_bytes(raw_bytes, original_filename or f"document{ext}") mime_type = SUPPORTED_DOCUMENT_TYPES[ext] event.media_urls = [cached_path] event.media_types = [mime_type] logger.info("[Telegram] Cached user document at %s", cached_path) # For text files, inject content into event.text (capped at 100 KB) MAX_TEXT_INJECT_BYTES = 100 * 1024 if ext in (".md", ".txt") and len(raw_bytes) <= MAX_TEXT_INJECT_BYTES: try: text_content = raw_bytes.decode("utf-8") display_name = original_filename or f"document{ext}" display_name = re.sub(r'[^\w.\- ]', '_', display_name) injection = f"[Content of {display_name}]:\n{text_content}" if event.text: event.text = f"{injection}\n\n{event.text}" else: event.text = injection except UnicodeDecodeError: logger.warning( "[Telegram] Could not decode text file as UTF-8, skipping content injection", exc_info=True, ) except Exception as e: logger.warning("[Telegram] Failed to cache document: %s", e, exc_info=True) media_group_id = getattr(msg, "media_group_id", None) if media_group_id: await self._queue_media_group_event(str(media_group_id), event) return await self.handle_message(event) async def _queue_media_group_event(self, media_group_id: str, event: MessageEvent) -> None: """Buffer Telegram media-group items so albums arrive as one logical event. Telegram delivers albums as multiple updates with a shared media_group_id. If we forward each item immediately, the gateway thinks the second image is a new user message and interrupts the first. We debounce briefly and merge the attachments into a single MessageEvent. """ existing = self._media_group_events.get(media_group_id) if existing is None: self._media_group_events[media_group_id] = event else: existing.media_urls.extend(event.media_urls) existing.media_types.extend(event.media_types) if event.text: if existing.text: if event.text not in existing.text.split("\n\n"): existing.text = f"{existing.text}\n\n{event.text}" else: existing.text = event.text prior_task = self._media_group_tasks.get(media_group_id) if prior_task: prior_task.cancel() self._media_group_tasks[media_group_id] = asyncio.create_task( self._flush_media_group_event(media_group_id) ) async def _flush_media_group_event(self, media_group_id: str) -> None: try: await asyncio.sleep(self.MEDIA_GROUP_WAIT_SECONDS) event = self._media_group_events.pop(media_group_id, None) if event is not None: await self.handle_message(event) except asyncio.CancelledError: return finally: self._media_group_tasks.pop(media_group_id, None) async def _handle_sticker(self, msg: Message, event: "MessageEvent") -> None: """ Describe a Telegram sticker via vision analysis, with caching. For static stickers (WEBP), we download, analyze with vision, and cache the description by file_unique_id. For animated/video stickers, we inject a placeholder noting the emoji. """ from gateway.sticker_cache import ( get_cached_description, cache_sticker_description, build_sticker_injection, build_animated_sticker_injection, STICKER_VISION_PROMPT, ) sticker = msg.sticker emoji = sticker.emoji or "" set_name = sticker.set_name or "" # Animated and video stickers can't be analyzed as static images if sticker.is_animated or sticker.is_video: event.text = build_animated_sticker_injection(emoji) return # Check the cache first cached = get_cached_description(sticker.file_unique_id) if cached: event.text = build_sticker_injection( cached["description"], cached.get("emoji", emoji), cached.get("set_name", set_name) ) logger.info("[Telegram] Sticker cache hit: %s", sticker.file_unique_id) return # Cache miss -- download and analyze try: file_obj = await sticker.get_file() image_bytes = await file_obj.download_as_bytearray() cached_path = cache_image_from_bytes(bytes(image_bytes), ext=".webp") logger.info("[Telegram] Analyzing sticker at %s", cached_path) from tools.vision_tools import vision_analyze_tool import json as _json result_json = await vision_analyze_tool( image_url=cached_path, user_prompt=STICKER_VISION_PROMPT, ) result = _json.loads(result_json) if result.get("success"): description = result.get("analysis", "a sticker") cache_sticker_description(sticker.file_unique_id, description, emoji, set_name) event.text = build_sticker_injection(description, emoji, set_name) else: # Vision failed -- use emoji as fallback event.text = build_sticker_injection( f"a sticker with emoji {emoji}" if emoji else "a sticker", emoji, set_name, ) except Exception as e: logger.warning("[Telegram] Sticker analysis error: %s", e, exc_info=True) event.text = build_sticker_injection( f"a sticker with emoji {emoji}" if emoji else "a sticker", emoji, set_name, ) def _reload_dm_topics_from_config(self) -> None: """Re-read dm_topics from config.yaml and load any new thread_ids into cache. This allows topics created externally (e.g. by the agent via API) to be recognized without a gateway restart. """ try: from hermes_constants import get_hermes_home config_path = get_hermes_home() / "config.yaml" if not config_path.exists(): return import yaml as _yaml with open(config_path, "r") as f: config = _yaml.safe_load(f) or {} dm_topics = ( config.get("platforms", {}) .get("telegram", {}) .get("extra", {}) .get("dm_topics", []) ) if not dm_topics: return # Update in-memory config and cache any new thread_ids self._dm_topics_config = dm_topics for chat_entry in dm_topics: cid = chat_entry.get("chat_id") if not cid: continue for t in chat_entry.get("topics", []): tid = t.get("thread_id") name = t.get("name") if tid and name: cache_key = f"{cid}:{name}" if cache_key not in self._dm_topics: self._dm_topics[cache_key] = int(tid) logger.info( "[%s] Hot-loaded DM topic from config: %s -> thread_id=%s", self.name, cache_key, tid, ) except Exception as e: logger.debug("[%s] Failed to reload dm_topics from config: %s", self.name, e) def _get_dm_topic_info(self, chat_id: str, thread_id: Optional[str]) -> Optional[Dict[str, Any]]: """Look up DM topic config by chat_id and thread_id. Returns the topic config dict (name, skill, etc.) if this thread_id matches a known DM topic, or None. """ if not thread_id: return None thread_id_int = int(thread_id) # Check cached topics first (created by us or loaded at startup) for key, cached_tid in self._dm_topics.items(): if cached_tid == thread_id_int and key.startswith(f"{chat_id}:"): topic_name = key.split(":", 1)[1] # Find the full config for this topic for chat_entry in self._dm_topics_config: if str(chat_entry.get("chat_id")) == chat_id: for t in chat_entry.get("topics", []): if t.get("name") == topic_name: return t return {"name": topic_name} # Not in cache — hot-reload config in case topics were added externally self._reload_dm_topics_from_config() # Check cache again after reload for key, cached_tid in self._dm_topics.items(): if cached_tid == thread_id_int and key.startswith(f"{chat_id}:"): topic_name = key.split(":", 1)[1] for chat_entry in self._dm_topics_config: if str(chat_entry.get("chat_id")) == chat_id: for t in chat_entry.get("topics", []): if t.get("name") == topic_name: return t return {"name": topic_name} return None def _cache_dm_topic_from_message(self, chat_id: str, thread_id: str, topic_name: str) -> None: """Cache a thread_id -> topic_name mapping discovered from an incoming message.""" cache_key = f"{chat_id}:{topic_name}" if cache_key not in self._dm_topics: self._dm_topics[cache_key] = int(thread_id) logger.info( "[%s] Cached DM topic from message: %s -> thread_id=%s", self.name, cache_key, thread_id, ) def _build_message_event(self, message: Message, msg_type: MessageType) -> MessageEvent: """Build a MessageEvent from a Telegram message.""" chat = message.chat user = message.from_user # Determine chat type chat_type = "dm" if chat.type in (ChatType.GROUP, ChatType.SUPERGROUP): chat_type = "group" elif chat.type == ChatType.CHANNEL: chat_type = "channel" # Resolve DM topic name and skill binding thread_id_raw = message.message_thread_id thread_id_str = str(thread_id_raw) if thread_id_raw else None chat_topic = None topic_skill = None if chat_type == "dm" and thread_id_str: topic_info = self._get_dm_topic_info(str(chat.id), thread_id_str) if topic_info: chat_topic = topic_info.get("name") topic_skill = topic_info.get("skill") # Also check forum_topic_created service message for topic discovery if hasattr(message, "forum_topic_created") and message.forum_topic_created: created_name = message.forum_topic_created.name if created_name: self._cache_dm_topic_from_message(str(chat.id), thread_id_str, created_name) if not chat_topic: chat_topic = created_name # Build source source = self.build_source( chat_id=str(chat.id), chat_name=chat.title or (chat.full_name if hasattr(chat, "full_name") else None), chat_type=chat_type, user_id=str(user.id) if user else None, user_name=user.full_name if user else None, thread_id=thread_id_str, chat_topic=chat_topic, ) # Extract reply context if this message is a reply reply_to_id = None reply_to_text = None if message.reply_to_message: reply_to_id = str(message.reply_to_message.message_id) reply_to_text = message.reply_to_message.text or message.reply_to_message.caption or None return MessageEvent( text=message.text or "", message_type=msg_type, source=source, raw_message=message, message_id=str(message.message_id), reply_to_message_id=reply_to_id, reply_to_text=reply_to_text, auto_skill=topic_skill, timestamp=message.date, )