79 lines
3.4 KiB
Python
79 lines
3.4 KiB
Python
import re
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from typing import Type
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from platypush.backend import Backend
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from platypush.context import get_plugin
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from platypush.message.event.chat.telegram import MessageEvent, CommandMessageEvent, TextMessageEvent, \
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PhotoMessageEvent, VideoMessageEvent, ContactMessageEvent, DocumentMessageEvent
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from platypush.plugins.chat.telegram import ChatTelegramPlugin
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class ChatTelegramBackend(Backend):
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"""
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Telegram bot that listens for messages and updates.
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Triggers:
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* :class:`platypush.message.event.chat.telegram.TextMessageEvent` when a text message is received.
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* :class:`platypush.message.event.chat.telegram.PhotoMessageEvent` when a photo is received.
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* :class:`platypush.message.event.chat.telegram.VideoMessageEvent` when a video is received.
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* :class:`platypush.message.event.chat.telegram.ContactMessageEvent` when a contact is received.
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* :class:`platypush.message.event.chat.telegram.DocumentMessageEvent` when a document is received.
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* :class:`platypush.message.event.chat.telegram.CommandMessageEvent` when a command message is received.
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Requires:
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* The :class:`platypush.plugins.chat.telegram.ChatTelegramPlugin` plugin configured
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"""
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self._plugin: ChatTelegramPlugin = get_plugin('chat.telegram')
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def _msg_hook(self, cls: Type[MessageEvent]):
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# noinspection PyUnusedLocal
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def hook(update, context):
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self.bus.post(cls(chat_id=update.effective_chat.id,
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message=self._plugin.parse_msg(update.effective_message).output,
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user=self._plugin.parse_user(update.effective_user).output))
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return hook
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def _command_hook(self):
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# noinspection PyUnusedLocal
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def hook(update, context):
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msg = update.effective_message
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m = re.match('\s*/([0-9a-zA-Z]+)\s*(.*)', msg.text)
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cmd = m.group(1).lower()
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args = [arg for arg in re.split('\s+', m.group(2)) if len(arg)]
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self.bus.post(CommandMessageEvent(chat_id=update.effective_chat.id,
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command=cmd,
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cmdargs=args,
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message=self._plugin.parse_msg(msg).output,
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user=self._plugin.parse_user(update.effective_user).output))
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return hook
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def run(self):
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# noinspection PyPackageRequirements
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from telegram.ext import MessageHandler, Filters
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super().run()
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telegram = self._plugin.get_telegram()
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dispatcher = telegram.dispatcher
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dispatcher.add_handler(MessageHandler(Filters.text, self._msg_hook(TextMessageEvent)))
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dispatcher.add_handler(MessageHandler(Filters.photo, self._msg_hook(PhotoMessageEvent)))
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dispatcher.add_handler(MessageHandler(Filters.video, self._msg_hook(VideoMessageEvent)))
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dispatcher.add_handler(MessageHandler(Filters.location, self._msg_hook(ContactMessageEvent)))
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dispatcher.add_handler(MessageHandler(Filters.document, self._msg_hook(DocumentMessageEvent)))
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dispatcher.add_handler(MessageHandler(Filters.command, self._command_hook()))
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self.logger.info('Initialized Telegram backend')
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telegram.start_polling()
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# vim:sw=4:ts=4:et:
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