From 1de3296c85355179683cfb4921e5a78075b0cf94 Mon Sep 17 00:00:00 2001 From: Fabio Manganiello Date: Wed, 1 Jan 2020 23:28:21 +0100 Subject: [PATCH] Support for group events and lists of authorized chat_ids --- platypush/backend/chat/telegram.py | 77 ++++++++++++++++++++---- platypush/message/event/chat/telegram.py | 4 ++ 2 files changed, 70 insertions(+), 11 deletions(-) diff --git a/platypush/backend/chat/telegram.py b/platypush/backend/chat/telegram.py index a0a9acae3..67ca57245 100644 --- a/platypush/backend/chat/telegram.py +++ b/platypush/backend/chat/telegram.py @@ -1,11 +1,12 @@ import re -from typing import Type +from typing import Type, Optional, Union, List from platypush.backend import Backend from platypush.context import get_plugin from platypush.message.event.chat.telegram import MessageEvent, CommandMessageEvent, TextMessageEvent, \ - PhotoMessageEvent, VideoMessageEvent, ContactMessageEvent, DocumentMessageEvent, LocationMessageEvent + PhotoMessageEvent, VideoMessageEvent, ContactMessageEvent, DocumentMessageEvent, LocationMessageEvent, \ + GroupChatCreatedEvent from platypush.plugins.chat.telegram import ChatTelegramPlugin @@ -22,6 +23,7 @@ class ChatTelegramBackend(Backend): * :class:`platypush.message.event.chat.telegram.ContactMessageEvent` when a contact is received. * :class:`platypush.message.event.chat.telegram.DocumentMessageEvent` when a document is received. * :class:`platypush.message.event.chat.telegram.CommandMessageEvent` when a command message is received. + * :class:`platypush.message.event.chat.telegram.GroupCreatedEvent` when the bot is invited to a new group. Requires: @@ -29,16 +31,63 @@ class ChatTelegramBackend(Backend): """ - def __init__(self, **kwargs): + def __init__(self, authorized_chat_ids: Optional[List[Union[str, int]]] = None, **kwargs): + """ + :param authorized_chat_ids: Optional list of chat_id/user_id which are authorized to send messages to + the bot. If nothing is specified then no restrictions are applied. + """ + super().__init__(**kwargs) + self.authorized_chat_ids = set(authorized_chat_ids or []) self._plugin: ChatTelegramPlugin = get_plugin('chat.telegram') + def _authorize(self, msg): + if not self.authorized_chat_ids: + return + + if msg.chat.type == 'private' and msg.chat.id not in self.authorized_chat_ids: + self.logger.info('Received message from unauthorized chat_id {}'.format(msg.chat.id)) + self._plugin.send_message(chat_id=msg.chat.id, text='You are not allowed to send messages to this bot') + raise PermissionError + def _msg_hook(self, cls: Type[MessageEvent]): # noinspection PyUnusedLocal def hook(update, context): - self.bus.post(cls(chat_id=update.effective_chat.id, - message=self._plugin.parse_msg(update.effective_message).output, - user=self._plugin.parse_user(update.effective_user).output)) + msg = update.effective_message + + try: + self._authorize(msg) + self.bus.post(cls(chat_id=update.effective_chat.id, + message=self._plugin.parse_msg(msg).output, + user=self._plugin.parse_user(update.effective_user).output)) + except PermissionError: + pass + + return hook + + def _group_hook(self): + # noinspection PyUnusedLocal + def hook(update, context): + msg = update.effective_message + if msg.group_chat_created: + self.bus.post(GroupChatCreatedEvent(chat_id=update.effective_chat.id, + message=self._plugin.parse_msg(msg).output, + user=self._plugin.parse_user(update.effective_user).output)) + elif msg.photo: + self._msg_hook(PhotoMessageEvent)(update, context) + elif msg.video: + self._msg_hook(VideoMessageEvent)(update, context) + elif msg.contact: + self._msg_hook(ContactMessageEvent)(update, context) + elif msg.location: + self._msg_hook(LocationMessageEvent)(update, context) + elif msg.document: + self._msg_hook(DocumentMessageEvent)(update, context) + elif msg.text: + if msg.text.startswith('/'): + self._command_hook()(update, context) + else: + self._msg_hook(TextMessageEvent)(update, context) return hook @@ -49,11 +98,16 @@ class ChatTelegramBackend(Backend): m = re.match('\s*/([0-9a-zA-Z_-]+)\s*(.*)', msg.text) cmd = m.group(1).lower() args = [arg for arg in re.split('\s+', m.group(2)) if len(arg)] - self.bus.post(CommandMessageEvent(chat_id=update.effective_chat.id, - command=cmd, - cmdargs=args, - message=self._plugin.parse_msg(msg).output, - user=self._plugin.parse_user(update.effective_user).output)) + + try: + self._authorize(msg) + self.bus.post(CommandMessageEvent(chat_id=update.effective_chat.id, + command=cmd, + cmdargs=args, + message=self._plugin.parse_msg(msg).output, + user=self._plugin.parse_user(update.effective_user).output)) + except PermissionError: + pass return hook @@ -65,6 +119,7 @@ class ChatTelegramBackend(Backend): telegram = self._plugin.get_telegram() dispatcher = telegram.dispatcher + dispatcher.add_handler(MessageHandler(Filters.group, self._group_hook())) dispatcher.add_handler(MessageHandler(Filters.text, self._msg_hook(TextMessageEvent))) dispatcher.add_handler(MessageHandler(Filters.photo, self._msg_hook(PhotoMessageEvent))) dispatcher.add_handler(MessageHandler(Filters.video, self._msg_hook(VideoMessageEvent))) diff --git a/platypush/message/event/chat/telegram.py b/platypush/message/event/chat/telegram.py index d0a062626..f3fb3d3f3 100644 --- a/platypush/message/event/chat/telegram.py +++ b/platypush/message/event/chat/telegram.py @@ -48,4 +48,8 @@ class DocumentMessageEvent(MessageEvent): pass +class GroupChatCreatedEvent(MessageEvent): + pass + + # vim:sw=4:ts=4:et: