Python telegram 模块，ext() 实例源码

def __init__(self, queue, mutex, slaves):
        """
        Initialization.

        Args:
            queue (queue.Queue): global message queue
            slaves (dict): Dictionary of slaves
        """
        super().__init__(queue, mutex)
        self.slaves = slaves
        try:
            self.bot = telegram.ext.Updater(getattr(config, self.channel_id)['token'])
        except (AttributeError, KeyError):
            raise ValueError("Token is not properly defined. Please define it in `config.py`.")
        mimetypes.init(files=["mimetypes"])
        self.admins = getattr(config, self.channel_id)['admins']
        self.logger = logging.getLogger("plugins.%s.TelegramChannel" % self.channel_id)
        self.me = self.bot.bot.get_me()
        self.bot.dispatcher.add_handler(WhitelistHandler(self.admins))
        self.bot.dispatcher.add_handler(telegram.ext.CommandHandler("link", self.link_chat_show_list, pass_args=True))
        self.bot.dispatcher.add_handler(telegram.ext.CommandHandler("chat", self.start_chat_list, pass_args=True))
        self.bot.dispatcher.add_handler(telegram.ext.CommandHandler("recog", self.recognize_speech, pass_args=True))
        self.bot.dispatcher.add_handler(telegram.ext.CallbackQueryHandler(self.callback_query_dispatcher))
        self.bot.dispatcher.add_handler(telegram.ext.CommandHandler("start", self.start, pass_args=True))
        self.bot.dispatcher.add_handler(telegram.ext.CommandHandler("extra", self.extra_help))
        self.bot.dispatcher.add_handler(telegram.ext.CommandHandler("help", self.help))
        self.bot.dispatcher.add_handler(telegram.ext.CommandHandler("unlink_all", self.unlink_all))
        self.bot.dispatcher.add_handler(telegram.ext.CommandHandler("info", self.info))
        self.bot.dispatcher.add_handler(
            telegram.ext.RegexHandler(r"^/(?P<id>[0-9]+)_(?P<command>[a-z0-9_-]+)", self.extra_call,
                                      pass_groupdict=True))
        self.bot.dispatcher.add_handler(telegram.ext.MessageHandler(
            telegram.ext.Filters.text |
            telegram.ext.Filters.photo |
            telegram.ext.Filters.sticker |
            telegram.ext.Filters.document |
            telegram.ext.Filters.venue |
            telegram.ext.Filters.location |
            telegram.ext.Filters.audio |
            telegram.ext.Filters.voice |
            telegram.ext.Filters.video,
            self.msg
        ))
        self.bot.dispatcher.add_error_handler(self.error)
        self.MUTE_CHAT_ID = self.MUTE_CHAT_ID.format(chat_id=self.channel_id)

    # Truncate string by bytes
    # Written by Mark Tolonen
    # http://stackoverflow.com/a/13738452/1989455

def _download_file(self, tg_msg, file_obj, msg_type):
        """
        Download media file from telegram platform.

        Args:
            tg_msg: Telegram message instance
            file_obj: File object
            msg_type: Type of message

        Returns:
            tuple of str[2]: Full path of the file, MIME type
        """
        path = os.path.join("storage", self.channel_id)
        if not os.path.exists(path):
            os.makedirs(path)
        size = getattr(file_obj, "file_size", None)
        file_id = file_obj.file_id
        if size and size > telegram.constants.MAX_FILESIZE_DOWNLOAD:
            raise EFBMessageError("Attachment is too large. Maximum 20 MB. (AT01)")
        f = self.bot.bot.getFile(file_id)
        fname = "%s_%s_%s_%s" % (msg_type, tg_msg.chat.id, tg_msg.message_id, int(time.time()))
        fullpath = os.path.join(path, fname)
        f.download(fullpath)
        mime = getattr(file_obj, "mime_type", magic.from_file(fullpath, mime=True))
        if type(mime) is bytes:
            mime = mime.decode()
        guess_ext = mimetypes.guess_extension(mime) or ".unknown"
        if guess_ext == ".unknown":
            self.logger.warning("File %s with mime %s has no matching extensions.", fullpath, mime)
        ext = ".jpeg" if mime == "image/jpeg" else guess_ext
        os.rename(fullpath, "%s%s" % (fullpath, ext))
        fullpath = "%s%s" % (fullpath, ext)
        return fullpath, mime