mirror of
https://github.com/python-telegram-bot/python-telegram-bot.git
synced 2024-11-22 15:17:00 +01:00
101 lines
3.3 KiB
Python
101 lines
3.3 KiB
Python
#!/usr/bin/env python
|
|
# pylint: disable=W0622,E0611
|
|
#
|
|
# A library that provides a Python interface to the Telegram Bot API
|
|
# Copyright (C) 2015-2020
|
|
# Leandro Toledo de Souza <devs@python-telegram-bot.org>
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Lesser Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Lesser Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser Public License
|
|
# along with this program. If not, see [http://www.gnu.org/licenses/].
|
|
"""This module contains an object that represents a Telegram InputFile."""
|
|
|
|
import imghdr
|
|
import mimetypes
|
|
import os
|
|
from uuid import uuid4
|
|
|
|
from telegram import TelegramError
|
|
|
|
from typing import IO, Tuple, Optional
|
|
|
|
DEFAULT_MIME_TYPE = 'application/octet-stream'
|
|
|
|
|
|
class InputFile:
|
|
"""This object represents a Telegram InputFile.
|
|
|
|
Attributes:
|
|
input_file_content (:obj:`bytes`): The binary content of the file to send.
|
|
filename (:obj:`str`): Optional. Filename for the file to be sent.
|
|
attach (:obj:`str`): Optional. Attach id for sending multiple files.
|
|
|
|
Args:
|
|
obj (:obj:`File handler`): An open file descriptor.
|
|
filename (:obj:`str`, optional): Filename for this InputFile.
|
|
attach (:obj:`bool`, optional): Whether this should be send as one file or is part of a
|
|
collection of files.
|
|
|
|
Raises:
|
|
TelegramError
|
|
|
|
"""
|
|
|
|
def __init__(self, obj: IO, filename: str = None, attach: bool = None):
|
|
self.filename = None
|
|
self.input_file_content = obj.read()
|
|
self.attach = 'attached' + uuid4().hex if attach else None
|
|
|
|
if filename:
|
|
self.filename = filename
|
|
elif hasattr(obj, 'name') and not isinstance(obj.name, int):
|
|
self.filename = os.path.basename(obj.name)
|
|
|
|
try:
|
|
self.mimetype = self.is_image(self.input_file_content)
|
|
except TelegramError:
|
|
if self.filename:
|
|
self.mimetype = mimetypes.guess_type(self.filename)[0] or DEFAULT_MIME_TYPE
|
|
else:
|
|
self.mimetype = DEFAULT_MIME_TYPE
|
|
if not self.filename:
|
|
self.filename = self.mimetype.replace('/', '.')
|
|
|
|
@property
|
|
def field_tuple(self) -> Tuple[str, bytes, str]:
|
|
return self.filename, self.input_file_content, self.mimetype
|
|
|
|
@staticmethod
|
|
def is_image(stream: bytes) -> str:
|
|
"""Check if the content file is an image by analyzing its headers.
|
|
|
|
Args:
|
|
stream (:obj:`bytes`): A byte stream representing the content of a file.
|
|
|
|
Returns:
|
|
:obj:`str`: The str mime-type of an image.
|
|
|
|
"""
|
|
image = imghdr.what(None, stream)
|
|
if image:
|
|
return 'image/%s' % image
|
|
|
|
raise TelegramError('Could not parse file content')
|
|
|
|
@staticmethod
|
|
def is_file(obj: object) -> bool:
|
|
return hasattr(obj, 'read')
|
|
|
|
def to_dict(self) -> Optional[str]:
|
|
if self.attach:
|
|
return 'attach://' + self.attach
|
|
return None
|