class

Autobot::Channels::TelegramChannel

Inherits Autobot::Channels::Channel < Reference < Object

Telegram channel using long polling via the Bot API.

Features:

Long polling (no webhook/public IP needed)
Built-in commands (/start, /reset, /help)
Custom commands (macros + bash scripts)
Media handling (photos, voice, documents)
Typing indicators
Markdown-to-Telegram HTML conversion
Allow list for access control

Constants

CHAT_LOG_KEEP_LINES = 100

CHAT_LOG_MAX_BYTES = 64000

DOCUMENT_CAPTION_LIMIT = 1024

EMPTY_MESSAGE_LABEL = "[empty message]"

GENERAL_TOPIC = 1_i64

GETME_MAX_ATTEMPTS = 5

GETME_RETRY_DELAY = 2.seconds

Log = ::Log.for("channels.telegram")

MAX_IMAGE_SIZE = (20 * 1024) * 1024

MEDIA_LOG_LABEL = "[media]"

MULTIPART_BOUNDARY = "----AutobotMediaBoundary"

PHOTO_CAPTION_LIMIT = 1024

POLL_TIMEOUT = 30

READ_CHUNK_SIZE = 4096

SCRIPT_OUTPUT_LIMIT = 4000

SERVICE_FIELDS = ["new_chat_members", "left_chat_member", "new_chat_title", "new_chat_photo", "delete_chat_photo", "group_chat_created", "supergroup_chat_created", "channel_chat_created", "message_auto_delete_timer_changed", "migrate_to_chat_id", "migrate_from_chat_id", "pinned_message", "forum_topic_created", "forum_topic_edited", "forum_topic_closed", "forum_topic_reopened", "general_forum_topic_hidden", "general_forum_topic_unhidden", "video_chat_scheduled", "video_chat_started", "video_chat_ended", "video_chat_participants_invited", "proximity_alert_triggered", "write_access_allowed", "boost_added", "chat_background_set"] of ::String

TELEGRAM_API_BASE = "https://api.telegram.org"

TOPIC_SEPARATOR = ':'

TYPING_INTERVAL = 4.0

Constructors

new(bus : Bus::MessageBus, token : String, allow_from : Array(String) = [] of String, proxy : String | Nil = nil, topics : Array(Int64) = [] of Int64, custom_commands : Config::CustomCommandsConfig = Config::CustomCommandsConfig.new, session_manager : Session::Manager | Nil = nil, transcriber : Transcriber | Nil = nil, cron_service : Cron::Service | Nil = nil, inbox : Media::Inbox | Nil = nil)

Source