256 lines
10 KiB
Python
256 lines
10 KiB
Python
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import json
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import requests
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import threading
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import aiotg
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import asyncio
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import logging
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import mimetypes
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import time
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from urllib.parse import unquote, quote, urlparse, parse_qs
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from aiohttp import web, ClientSession, MultipartWriter
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from pprint import pprint
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from bs4 import BeautifulSoup
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try:
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with open('config.json', 'r') as f:
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config = json.load(f)
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HS_TOKEN = config['tokens']['hs']
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AS_TOKEN = config['tokens']['as']
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TG_TOKEN = config['tokens']['telegram']
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GOOGLE_TOKEN = config['tokens']['google']
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MATRIX_HOST = config['hosts']['internal']
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MATRIX_HOST_EXT = config['hosts']['external']
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MATRIX_PREFIX = MATRIX_HOST + '_matrix/client/r0/'
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MATRIX_MEDIA_PREFIX = MATRIX_HOST + '_matrix/media/r0/'
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USER_ID_FORMAT = config['user_id_format']
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telegram_chats = config['chats']
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matrix_rooms = {v: k for k, v in telegram_chats.items()}
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except (OSError, IOError) as e:
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print('Error opening config file:')
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print(e)
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exit(1)
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bot = aiotg.Bot(api_token=TG_TOKEN)
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client_session = ClientSession()
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def create_response(code, obj):
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return web.Response(text=json.dumps(obj), status=code, content_type='application/json', charset='utf-8')
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VALID_TAGS = ['b', 'strong', 'i', 'em', 'a', 'pre']
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def sanitize_html(h):
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h = h.replace('\n', '')
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h = h.replace('<br>', '\n').replace('<br/>', '\n').replace('<br />', '\n')
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soup = BeautifulSoup(h, 'html.parser')
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for tag in soup.find_all(True):
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if tag.name == 'blockquote':
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tag.string = ('\n' + tag.text).replace('\n', '\n> ').rstrip('\n>')
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if tag.name not in VALID_TAGS:
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tag.hidden = True
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return soup.renderContents().decode('utf-8')
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async def matrix_transaction(request):
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transaction = request.match_info['transaction']
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body = await request.json()
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events = body['events']
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for event in events:
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room_id = event['room_id']
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if room_id not in matrix_rooms:
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print('{} not in matrix_rooms!'.format(room_id))
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elif event['type'] == 'm.room.message':
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group = bot.group(matrix_rooms[room_id])
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username = event['user_id'].split(':')[0][1:]
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if username.startswith('telegram_'):
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return create_response(200, {})
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content = event['content']
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if content['msgtype'] == 'm.text':
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if 'formatted_body' in content:
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await group.send_text('<{}> {}'.format(username, sanitize_html(content['formatted_body'])), parse_mode='HTML')
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else:
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await group.send_text('<{}> {}'.format(username, content['body']))
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elif content['msgtype'] == 'm.notice':
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if 'formatted_body' in content:
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await group.send_text('[{}] {}'.format(username, sanitize_html(content['formatted_body'])), parse_mode='HTML')
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else:
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await group.send_text('[{}] {}'.format(username, content['body']))
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elif content['msgtype'] == 'm.emote':
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if 'formatted_body' in content:
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await group.send_text('*** {} {}'.format(username, sanitize_html(content['formatted_body'])), parse_mode='HTML')
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else:
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await group.send_text('*** {} {}'.format(username, content['body']))
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elif content['msgtype'] == 'm.image':
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url = urlparse(content['url'])
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async with client_session.get(MATRIX_MEDIA_PREFIX + 'download/{}{}'.format(url.netloc, url.path)) as response:
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b = await response.read()
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with open('/tmp/{}'.format(content['body']), 'wb') as f:
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f.write(b)
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with open('/tmp/{}'.format(content['body']), 'rb') as f:
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url_str = MATRIX_HOST_EXT + '_matrix/media/r0/download/{}{}'.format(url.netloc, quote(url.path))
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async with ClientSession() as shorten_session:
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async with shorten_session.post('https://www.googleapis.com/urlshortener/v1/url',
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params={'key': GOOGLE_TOKEN},
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data=json.dumps({'longUrl': url_str}),
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headers={'Content-Type': 'application/json'}) as response:
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j = await response.json()
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if 'id' in j:
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url_str = j['id']
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else:
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print('Something went wrong while shortening:')
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pprint(j)
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caption = '<{}> {} ({})'.format(username, content['body'], url_str)
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await group.send_photo(f, caption=caption)
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else:
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print(json.dumps(content, indent=4))
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return create_response(200, {})
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async def _matrix_request(method_fun, category, path, user_id, data=None, content_type=None):
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if data is not None:
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if isinstance(data, dict):
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data = json.dumps(data)
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content_type = 'application/json; charset=utf-8'
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elif content_type is None:
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content_type = 'application/octet-stream'
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params = {'access_token': AS_TOKEN}
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if user_id is not None:
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params['user_id'] = user_id
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async with method_fun('{}_matrix/{}/r0/{}'.format(MATRIX_HOST, quote(category), quote(path)),
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params=params, data=data, headers={'Content-Type': content_type}) as response:
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if response.headers['Content-Type'].split(';')[0] == 'application/json':
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return await response.json()
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else:
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return await response.read()
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def matrix_post(category, path, user_id, data, content_type=None):
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return _matrix_request(client_session.post, category, path, user_id, data, content_type)
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def matrix_put(category, path, user_id, data, content_type=None):
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return _matrix_request(client_session.put, category, path, user_id, data, content_type)
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def matrix_get(category, path, user_id):
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return _matrix_request(client_session.get, category, path, user_id)
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def matrix_delete(category, path, user_id):
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return _matrix_request(client_session.delete, category, path, user_id)
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async def matrix_room(request):
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room_alias = request.match_info['room_alias']
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args = parse_qs(urlparse(request.path_qs).query)
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print('Checking for {} | {}'.format(unquote(room_alias), args['access_token'][0]))
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try:
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if args['access_token'][0] != HS_TOKEN:
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return create_response(403, {'errcode': 'M_FORBIDDEN'})
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except KeyError:
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return create_response(401, {'errcode': 'NL.SIJMENSCHOON.TELEMATRIX_UNAUTHORIZED'})
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localpart, host = room_alias.split(':')
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chat = '_'.join(localpart.split('_')[1:])
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if chat in telegram_chats:
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await matrix_post('client', 'createRoom', None, {'room_alias_name': localpart[1:]})
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return create_response(200, {})
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else:
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return create_response(404, {'errcode': 'NL.SIJMENSCHOON.TELEMATRIX_NOT_FOUND'})
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def send_matrix_message(room_id, user_id, txn_id, **kwargs):
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return matrix_put('client', 'rooms/{}/send/m.room.message/{}'.format(room_id, txn_id), user_id, kwargs)
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async def upload_tgfile_to_matrix(file_id, user_id):
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file_path = (await bot.get_file(file_id))['file_path']
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request = await bot.download_file(file_path)
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mimetype = request.headers['Content-Type']
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data = await request.read()
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j = await matrix_post('media', 'upload', user_id, data, mimetype)
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if 'content_uri' in j:
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return (j['content_uri'], mimetype, len(data))
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else:
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return None, None, 0
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async def register_join_matrix(chat, room_id, user_id):
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name = chat.sender['first_name']
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if 'last_name' in chat.sender:
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name += ' ' + chat.sender['last_name']
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name += ' (Telegram)'
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user = user_id.split(':')[0][1:]
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await matrix_post('client', 'register', None, {'type': 'm.login.application_service', 'user': user})
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profile_photos = await bot.get_user_profile_photos(chat.sender['id'])
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try:
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pp_file_id = profile_photos['result']['photos'][0][-1]['file_id']
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pp_uri, _, _ = await upload_tgfile_to_matrix(pp_file_id, user_id)
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if pp_uri:
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await matrix_put('client', 'profile/{}/avatar_url'.format(user_id), user_id, {'avatar_url': pp_uri})
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except IndexError:
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pass
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await matrix_put('client', 'profile/{}/displayname'.format(user_id), user_id, {'displayname': name})
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await matrix_post('client', 'join/{}'.format(room_id), user_id, {})
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@bot.handle('photo')
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async def aiotg_photo(chat, photo):
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try:
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room_id = telegram_chats[str(chat.id)]
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except KeyError:
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print('Unknown telegram chat {}'.format(chat))
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return
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user_id = USER_ID_FORMAT.format(chat.sender['id'])
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txn_id = quote('{}:{}'.format(chat.message['message_id'], chat.id))
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file_id = photo[-1]['file_id']
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uri, mime, length = await upload_tgfile_to_matrix(file_id, user_id)
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info = {'mimetype': mime, 'size': length, 'h': photo[-1]['height'], 'w': photo[-1]['width']}
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body = 'Image_{}{}'.format(int(time.time() * 1000), mimetypes.guess_extension(mime))
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if uri:
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j = await send_matrix_message(room_id, user_id, txn_id, body=body, url=uri, info=info, msgtype='m.image')
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if 'errcode' in j and j['errcode'] == 'M_FORBIDDEN':
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await register_join_matrix(chat, room_id, user_id)
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await send_matrix_message(room_id, user_id, txn_id, body=body, url=uri, info=info, msgtype='m.image')
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@bot.command(r'(?s)(.*)')
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async def aiotg_message(chat, match):
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try:
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room_id = telegram_chats[str(chat.id)]
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except KeyError:
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print('Unknown telegram chat {}'.format(chat))
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return
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user_id = USER_ID_FORMAT.format(chat.sender['id'])
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txn_id = quote('{}:{}'.format(chat.message['message_id'], chat.id))
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message = match.group(0)
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j = await send_matrix_message(room_id, user_id, txn_id, body=message, msgtype='m.text')
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if 'errcode' in j and j['errcode'] == 'M_FORBIDDEN':
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await asyncio.sleep(1)
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await register_join_matrix(chat, room_id, user_id)
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await asyncio.sleep(1)
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await send_matrix_message(room_id, user_id, txn_id, body=message, msgtype='m.text')
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if __name__ == "__main__":
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logging.basicConfig(level=logging.WARNING)
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loop = asyncio.get_event_loop()
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asyncio.ensure_future(bot.loop())
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app = web.Application(loop=loop)
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app.router.add_route('GET', '/rooms/{room_alias}', matrix_room)
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app.router.add_route('PUT', '/transactions/{transaction}', matrix_transaction)
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web.run_app(app, port=5000)
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