forked from python-telegram-bot/python-telegram-bot
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathinputfile.py
More file actions
138 lines (116 loc) · 4.43 KB
/
inputfile.py
File metadata and controls
138 lines (116 loc) · 4.43 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
#!/usr/bin/env python
# pylint: disable=W0622,E0611
#
# A library that provides a Python interface to the Telegram Bot API
# Copyright (C) 2015-2016
# 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."""
try:
# python 3
from email.generator import _make_boundary as choose_boundary
except ImportError:
# python 2
from mimetools import choose_boundary
import imghdr
import mimetypes
import os
from telegram import TelegramError
DEFAULT_MIME_TYPE = 'application/octet-stream'
USER_AGENT = 'Python Telegram Bot (https://github.com/python-telegram-bot/python-telegram-bot)'
FILE_TYPES = ('audio', 'document', 'photo', 'sticker', 'video', 'voice', 'certificate')
class InputFile(object):
"""This object represents a Telegram InputFile."""
def __init__(self, data):
self.data = data
self.boundary = choose_boundary()
if 'audio' in data:
self.input_name = 'audio'
self.input_file = data.pop('audio')
elif 'document' in data:
self.input_name = 'document'
self.input_file = data.pop('document')
elif 'photo' in data:
self.input_name = 'photo'
self.input_file = data.pop('photo')
elif 'sticker' in data:
self.input_name = 'sticker'
self.input_file = data.pop('sticker')
elif 'video' in data:
self.input_name = 'video'
self.input_file = data.pop('video')
elif 'voice' in data:
self.input_name = 'voice'
self.input_file = data.pop('voice')
elif 'certificate' in data:
self.input_name = 'certificate'
self.input_file = data.pop('certificate')
else:
raise TelegramError('Unknown inputfile type')
if hasattr(self.input_file, 'read'):
self.filename = None
self.input_file_content = self.input_file.read()
if 'filename' in data:
self.filename = self.data.pop('filename')
elif hasattr(self.input_file, 'name'):
# on py2.7, pylint fails to understand this properly
# pylint: disable=E1101
self.filename = os.path.basename(self.input_file.name)
try:
self.mimetype = self.is_image(self.input_file_content)
if not self.filename or '.' not in self.filename:
self.filename = self.mimetype.replace('/', '.')
except TelegramError:
self.mimetype = mimetypes.guess_type(self.filename)[0] or DEFAULT_MIME_TYPE
@property
def headers(self):
"""
Returns:
str:
"""
return {'User-agent': USER_AGENT, 'Content-type': self.content_type}
@property
def content_type(self):
"""
Returns:
str:
"""
return 'multipart/form-data; boundary=%s' % self.boundary
@staticmethod
def is_image(stream):
"""Check if the content file is an image by analyzing its headers.
Args:
stream (str): A str representing the content of a file.
Returns:
str: The str mimetype of an image.
"""
image = imghdr.what(None, stream)
if image:
return 'image/%s' % image
raise TelegramError('Could not parse file content')
@staticmethod
def is_inputfile(data):
"""Check if the request is a file request.
Args:
data (dict): A dict of (str, unicode) key/value pairs
Returns:
bool
"""
if data:
file_type = [i for i in iter(data) if i in FILE_TYPES]
if file_type:
file_content = data[file_type[0]]
return hasattr(file_content, 'read')
return False