├── runtime.txt ├── Procfile ├── requirements.txt ├── .gitignore ├── tgfilestream ├── __init__.py ├── log.py ├── telegram.py ├── __main__.py ├── config.py ├── util.py ├── web_routes.py └── paralleltransfer.py ├── GenerateStringSession.py ├── app.json ├── setup.py ├── README.md └── LICENSE /runtime.txt: -------------------------------------------------------------------------------- 1 | python-3.7.6 2 | -------------------------------------------------------------------------------- /Procfile: -------------------------------------------------------------------------------- 1 | web: python3 -m tgfilestream 2 | -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | aiohttp 2 | yarl 3 | telethon 4 | cryptg 5 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | *.session 2 | *.session-journal 3 | 4 | __pycache__ 5 | *.pyc 6 | -------------------------------------------------------------------------------- /tgfilestream/__init__.py: -------------------------------------------------------------------------------- 1 | __version__ = "0.1.0" 2 | __author__ = "Tulir Asokan " 3 | -------------------------------------------------------------------------------- /GenerateStringSession.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # (c) https://t.me/TelethonChat/37677 3 | # This Source Code Form is subject to the terms of the GNU 4 | # General Public License, v.3.0. If a copy of the GPL was not distributed with this 5 | # file, You can obtain one at https://www.gnu.org/licenses/gpl-3.0.en.html. 6 | 7 | from telethon.sync import TelegramClient 8 | from telethon.sessions import StringSession 9 | 10 | print("""Please go-to my.telegram.org 11 | Login using your Telegram account 12 | Click on API Development Tools 13 | Create a new application, by entering the required details""") 14 | APP_ID = int(input("Enter APP ID here: ")) 15 | API_HASH = input("Enter API HASH here: ") 16 | 17 | with TelegramClient(StringSession(), APP_ID, API_HASH) as client: 18 | print(client.session.save()) 19 | -------------------------------------------------------------------------------- /app.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "Files to Link", 3 | "description": "Telegram files to Direct link!!", 4 | "logo": "https://telegra.ph/file/c3d25aa057a3aa2282d50.png", 5 | "keywords": [ 6 | "telegram", 7 | "FiletoLinkBot" 8 | ], 9 | "repository": "https://github.com/prgofficial/FileToLink", 10 | "env": { 11 | "TG_API_ID": { 12 | "description": "Your Telegram API ID. Get this value from my.telegram.org!", 13 | "value": "" 14 | }, 15 | "TG_API_HASH": { 16 | "description": " Your Telegram API hash. Get this value from my.telegram.org!", 17 | "value": "" 18 | }, 19 | "TG_SESSION_NAME": { 20 | "description": "Run Console this (python3 GenerateStringSession.py) ", 21 | "value": "" 22 | }, 23 | "HOST": { 24 | "description": "Leave the Same Value", 25 | "value": "0.0.0.0", 26 | "required": false 27 | }, 28 | "PUBLIC_URL": { 29 | "description": "The Heroku App URL similar to https://.herokuapp.com/", 30 | "value": "" 31 | }, 32 | "TG_START_MESG": { 33 | "description": "Set /start Message", 34 | "value": "" 35 | } 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /tgfilestream/log.py: -------------------------------------------------------------------------------- 1 | # tgfilestream - A Telegram bot that can stream Telegram files to users over HTTP. 2 | # Copyright (C) 2019 Tulir Asokan 3 | # 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU Affero General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | # 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU Affero General Public License for more details. 13 | # 14 | # You should have received a copy of the GNU Affero General Public License 15 | # along with this program. If not, see . 16 | import logging 17 | 18 | from .config import log_config, debug 19 | 20 | if log_config: 21 | logging.basicConfig(filename=log_config) 22 | else: 23 | logging.basicConfig(level=logging.DEBUG if debug else logging.INFO) 24 | logging.getLogger("telethon").setLevel(logging.INFO if debug else logging.ERROR) 25 | 26 | log = logging.getLogger("tgfilestream") 27 | -------------------------------------------------------------------------------- /setup.py: -------------------------------------------------------------------------------- 1 | import setuptools 2 | 3 | from tgfilestream import __version__ 4 | 5 | try: 6 | long_desc = open("README.md").read() 7 | except IOError: 8 | long_desc = "Failed to read README.md" 9 | 10 | setuptools.setup( 11 | name="tgfilestream", 12 | version=__version__, 13 | url="https://mau.dev/tulir/tgfilestream", 14 | 15 | author="Tulir Asokan", 16 | author_email="tulir@maunium.net", 17 | 18 | description="A Telegram bot that can stream Telegram files to users over HTTP.", 19 | long_description=long_desc, 20 | long_description_content_type="text/markdown", 21 | 22 | packages=setuptools.find_packages(), 23 | 24 | install_requires=[ 25 | "aiohttp>=3", 26 | "telethon>=1.10", 27 | "yarl>=1", 28 | ], 29 | extras_require={ 30 | "fast": ["cryptg>=0.2"], 31 | }, 32 | python_requires="~=3.7", 33 | 34 | classifiers=[ 35 | "Development Status :: 4 - Beta", 36 | "License :: OSI Approved :: GNU Affero General Public License v3 or later (AGPLv3+)", 37 | "Framework :: AsyncIO", 38 | "Programming Language :: Python", 39 | "Programming Language :: Python :: 3", 40 | "Programming Language :: Python :: 3.7", 41 | "Programming Language :: Python :: 3.8", 42 | ], 43 | entry_points=""" 44 | [console_scripts] 45 | tgfilestream=tgfilestream.__main__:main 46 | """, 47 | ) 48 | -------------------------------------------------------------------------------- /tgfilestream/telegram.py: -------------------------------------------------------------------------------- 1 | # tgfilestream - A Telegram bot that can stream Telegram files to users over HTTP. 2 | # Copyright (C) 2019 Tulir Asokan 3 | # 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU Affero General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | # 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU Affero General Public License for more details. 13 | # 14 | # You should have received a copy of the GNU Affero General Public License 15 | # along with this program. If not, see .' 16 | import logging 17 | 18 | from telethon import TelegramClient, events 19 | from telethon.sessions import StringSession 20 | 21 | from .paralleltransfer import ParallelTransferrer 22 | from .config import ( 23 | session_name, 24 | api_id, 25 | api_hash, 26 | public_url, 27 | start_message, 28 | group_chat_message 29 | ) 30 | from .util import pack_id, get_file_name 31 | 32 | log = logging.getLogger(__name__) 33 | 34 | client = TelegramClient(StringSession(session_name), api_id, api_hash) 35 | transfer = ParallelTransferrer(client) 36 | 37 | 38 | @client.on(events.NewMessage) 39 | async def handle_message(evt: events.NewMessage.Event) -> None: 40 | if not evt.is_private: 41 | await evt.reply(group_chat_message) 42 | return 43 | if not evt.file: 44 | await evt.reply(start_message) 45 | return 46 | url = public_url / str(pack_id(evt)) / get_file_name(evt) 47 | await evt.reply(f"Link to download file: {url}") 48 | log.info(f"Replied with link for {evt.id} to {evt.from_id} in {evt.chat_id}") 49 | log.debug(f"Link to {evt.id} in {evt.chat_id}: {url}") 50 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Telegram File To Link Generation Bot 2 | A Telegram bot that can stream Telegram files to users over HTTP. 3 | 4 | ## Installation 5 | Install dependencies (see [requirements.txt](/requirements.txt)), configure 6 | environment variables (see below) and run with `python3 -m tgfilestream`. 7 | 8 | A reverse proxy is recommended to add TLS. When using a reverse proxy, keep 9 | `HOST` as-is, but add the publicly accessible URL to `PUBLIC_URL`. The URL 10 | should include the protocol, e.g. `https://example.com`. 11 | 12 | ## You can also tap the Deploy To Heroku button below to deploy straight to Heroku! 13 | 14 | [![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy?template=https://github.com/prgofficial/FileToLink) 15 | 16 | ### Environment variables 17 | * `TG_API_ID` (required) - Your Telegram API ID. 18 | * `TG_API_HASH` (required) - Your Telegram API hash. 19 | * `TG_SESSION_NAME` (defaults to `tgfilestream`) - The name of the Telethon session file to use. 20 | * `PORT` (defaults to `8080`) - The port to listen at. 21 | * `HOST` (defaults to `localhost`) - The host to listen at. 22 | * `PUBLIC_URL` (defaults to `http://localhost:8080`) - The prefix for links that the bot gives. 23 | * `TRUST_FORWARD_HEADERS` (defaults to false) - Whether or not to trust X-Forwarded-For headers when logging requests. 24 | * `DEBUG` (defaults to false) - Whether or not to enable extra prints. 25 | * `LOG_CONFIG` - Path to a Python basic log config. Overrides `DEBUG`. 26 | * `REQUEST_LIMIT` (default 5) - The maximum number of requests a single IP can have active at a time. 27 | * `CONNECTION_LIMIT` (default 20) - The maximum number of connections to a single Telegram datacenter. 28 | * `TG_START_MESG` - The message that should be shown in Telegram chat, in case of non-media message. 29 | 30 | 31 | ## Issue Bot stopped responding 32 | 33 | If bot is not responding, open `https://.herokuapp.com/` and try again. 34 | Issue - https://github.com/tulir/tgfilestream/issues/9 35 | -------------------------------------------------------------------------------- /tgfilestream/__main__.py: -------------------------------------------------------------------------------- 1 | # tgfilestream - A Telegram bot that can stream Telegram files to users over HTTP. 2 | # Copyright (C) 2019 Tulir Asokan 3 | # 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU Affero General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | # 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU Affero General Public License for more details. 13 | # 14 | # You should have received a copy of the GNU Affero General Public License 15 | # along with this program. If not, see . 16 | import asyncio 17 | import sys 18 | 19 | from aiohttp import web 20 | from telethon import functions 21 | 22 | from .telegram import client, transfer 23 | from .web_routes import routes 24 | from .config import host, port, public_url 25 | from .log import log 26 | 27 | server = web.Application() 28 | server.add_routes(routes) 29 | runner = web.AppRunner(server) 30 | 31 | loop = asyncio.get_event_loop() 32 | 33 | 34 | async def start() -> None: 35 | await client.start() 36 | 37 | config = await client(functions.help.GetConfigRequest()) 38 | for option in config.dc_options: 39 | if option.ip_address == client.session.server_address: 40 | if client.session.dc_id != option.id: 41 | log.warning(f"Fixed DC ID in session from {client.session.dc_id} to {option.id}") 42 | client.session.set_dc(option.id, option.ip_address, option.port) 43 | client.session.save() 44 | break 45 | transfer.post_init() 46 | 47 | await runner.setup() 48 | await web.TCPSite(runner, host, port).start() 49 | 50 | 51 | async def stop() -> None: 52 | await runner.cleanup() 53 | await client.disconnect() 54 | 55 | 56 | try: 57 | loop.run_until_complete(start()) 58 | except Exception: 59 | log.fatal("Failed to initialize", exc_info=True) 60 | sys.exit(2) 61 | 62 | log.info("Initialization complete") 63 | log.debug(f"Listening at http://{host}:{port}") 64 | log.debug(f"Public URL prefix is {public_url}") 65 | 66 | try: 67 | loop.run_forever() 68 | except KeyboardInterrupt: 69 | loop.run_until_complete(stop()) 70 | except Exception: 71 | log.fatal("Fatal error in event loop", exc_info=True) 72 | sys.exit(3) 73 | -------------------------------------------------------------------------------- /tgfilestream/config.py: -------------------------------------------------------------------------------- 1 | # tgfilestream - A Telegram bot that can stream Telegram files to users over HTTP. 2 | # Copyright (C) 2019 Tulir Asokan 3 | # 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU Affero General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | # 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU Affero General Public License for more details. 13 | # 14 | # You should have received a copy of the GNU Affero General Public License 15 | # along with this program. If not, see . 16 | import sys 17 | import os 18 | 19 | from yarl import URL 20 | 21 | try: 22 | port = int(os.environ.get("PORT", "8080")) 23 | except ValueError: 24 | port = -1 25 | if not 1 <= port <= 65535: 26 | print("Please make sure the PORT environment variable is an integer between 1 and 65535") 27 | sys.exit(1) 28 | 29 | try: 30 | api_id = int(os.environ["TG_API_ID"]) 31 | api_hash = os.environ["TG_API_HASH"] 32 | except (KeyError, ValueError): 33 | print("Please set the TG_API_ID and TG_API_HASH environment variables correctly") 34 | print("You can get your own API keys at https://my.telegram.org/apps") 35 | sys.exit(1) 36 | 37 | trust_headers = bool(os.environ.get("TRUST_FORWARD_HEADERS")) 38 | host = os.environ.get("HOST", "localhost") 39 | public_url = URL(os.environ.get("PUBLIC_URL", f"http://{host}:{port}")) 40 | 41 | session_name = os.environ.get("TG_SESSION_NAME", "tgfilestream") 42 | 43 | log_config = os.environ.get("LOG_CONFIG") 44 | debug = bool(os.environ.get("DEBUG")) 45 | 46 | try: 47 | # The per-user ongoing request limit 48 | request_limit = int(os.environ.get("REQUEST_LIMIT", "5")) 49 | except ValueError: 50 | print("Please make sure the REQUEST_LIMIT environment variable is an integer") 51 | sys.exit(1) 52 | 53 | try: 54 | # The per-DC connection limit 55 | connection_limit = int(os.environ.get("CONNECTION_LIMIT", "20")) 56 | except ValueError: 57 | print("Please make sure the CONNECTION_LIMIT environment variable is an integer") 58 | sys.exit(1) 59 | 60 | 61 | start_message = os.environ.get("TG_START_MESG", "Send any telegram file and see the MAGIC!!") 62 | group_chat_message = os.environ.get("TG_G_C_MESG", "Sorry. But, I only work in private.") 63 | -------------------------------------------------------------------------------- /tgfilestream/util.py: -------------------------------------------------------------------------------- 1 | # tgfilestream - A Telegram bot that can stream Telegram files to users over HTTP. 2 | # Copyright (C) 2019 Tulir Asokan 3 | # 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU Affero General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | # 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU Affero General Public License for more details. 13 | # 14 | # You should have received a copy of the GNU Affero General Public License 15 | # along with this program. If not, see . 16 | from typing import Tuple, Union 17 | 18 | from telethon import events 19 | from telethon.tl.custom import Message 20 | from telethon.tl.types import TypeInputPeer, InputPeerChannel, InputPeerChat, InputPeerUser 21 | from aiohttp import web 22 | 23 | from .config import trust_headers 24 | 25 | pack_bits = 32 26 | pack_bit_mask = (1 << pack_bits) - 1 27 | 28 | group_bit = 0b01 29 | channel_bit = 0b10 30 | chat_id_offset = 2 31 | msg_id_offset = pack_bits + chat_id_offset 32 | 33 | 34 | def pack_id(evt: events.NewMessage.Event) -> int: 35 | file_id = 0 36 | if evt.is_group: 37 | file_id |= group_bit 38 | if evt.is_channel: 39 | file_id |= channel_bit 40 | file_id |= evt.chat_id << chat_id_offset 41 | file_id |= evt.id << msg_id_offset 42 | return file_id 43 | 44 | 45 | def unpack_id(file_id: int) -> Tuple[TypeInputPeer, int]: 46 | is_group = file_id & group_bit 47 | is_channel = file_id & channel_bit 48 | chat_id = file_id >> chat_id_offset & pack_bit_mask 49 | msg_id = file_id >> msg_id_offset & pack_bit_mask 50 | if is_channel: 51 | peer = InputPeerChannel(channel_id=chat_id, access_hash=0) 52 | elif is_group: 53 | peer = InputPeerChat(chat_id=chat_id) 54 | else: 55 | peer = InputPeerUser(user_id=chat_id, access_hash=0) 56 | return peer, msg_id 57 | 58 | 59 | def get_file_name(message: Union[Message, events.NewMessage.Event]) -> str: 60 | if message.file.name: 61 | return message.file.name 62 | ext = message.file.ext or "" 63 | return f"{message.date.strftime('%Y-%m-%d_%H:%M:%S')}{ext}" 64 | 65 | 66 | def get_requester_ip(req: web.Request) -> str: 67 | if trust_headers: 68 | try: 69 | return req.headers["X-Forwarded-For"] 70 | except KeyError: 71 | pass 72 | peername = req.transport.get_extra_info('peername') 73 | if peername is not None: 74 | return peername[0] 75 | -------------------------------------------------------------------------------- /tgfilestream/web_routes.py: -------------------------------------------------------------------------------- 1 | # tgfilestream - A Telegram bot that can stream Telegram files to users over HTTP. 2 | # Copyright (C) 2019 Tulir Asokan 3 | # 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU Affero General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | # 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU Affero General Public License for more details. 13 | # 14 | # You should have received a copy of the GNU Affero General Public License 15 | # along with this program. If not, see . 16 | from typing import Dict, cast 17 | from collections import defaultdict 18 | import logging 19 | 20 | from telethon.tl.custom import Message 21 | from aiohttp import web 22 | 23 | from .util import unpack_id, get_file_name, get_requester_ip 24 | from .config import request_limit 25 | from .telegram import client, transfer 26 | 27 | log = logging.getLogger(__name__) 28 | routes = web.RouteTableDef() 29 | ongoing_requests: Dict[str, int] = defaultdict(lambda: 0) 30 | 31 | 32 | @routes.head(r"/{id:\d+}/{name}") 33 | async def handle_head_request(req: web.Request) -> web.Response: 34 | return await handle_request(req, head=True) 35 | 36 | 37 | @routes.get(r"/{id:\d+}/{name}") 38 | async def handle_get_request(req: web.Request) -> web.Response: 39 | return await handle_request(req, head=False) 40 | 41 | 42 | def allow_request(ip: str) -> None: 43 | return ongoing_requests[ip] < request_limit 44 | 45 | 46 | def increment_counter(ip: str) -> None: 47 | ongoing_requests[ip] += 1 48 | 49 | 50 | def decrement_counter(ip: str) -> None: 51 | ongoing_requests[ip] -= 1 52 | 53 | 54 | async def handle_request(req: web.Request, head: bool = False) -> web.Response: 55 | file_name = req.match_info["name"] 56 | file_id = int(req.match_info["id"]) 57 | peer, msg_id = unpack_id(file_id) 58 | if not peer or not msg_id: 59 | return web.Response(status=404, text="404: Not Found") 60 | 61 | message = cast(Message, await client.get_messages(entity=peer, ids=msg_id)) 62 | if not message or not message.file or get_file_name(message) != file_name: 63 | return web.Response(status=404, text="404: Not Found") 64 | 65 | size = message.file.size 66 | offset = req.http_range.start or 0 67 | limit = req.http_range.stop or size 68 | 69 | if not head: 70 | ip = get_requester_ip(req) 71 | if not allow_request(ip): 72 | return web.Response(status=429) 73 | log.info(f"Serving file in {message.id} (chat {message.chat_id}) to {ip}") 74 | body = transfer.download(message.media, file_size=size, offset=offset, limit=limit) 75 | else: 76 | body = None 77 | return web.Response(status=206 if offset else 200, 78 | body=body, 79 | headers={ 80 | "Content-Type": message.file.mime_type, 81 | "Content-Range": f"bytes {offset}-{size}/{size}", 82 | "Content-Length": str(limit - offset), 83 | "Content-Disposition": f'attachment; filename="{file_name}"', 84 | "Accept-Ranges": "bytes", 85 | }) 86 | -------------------------------------------------------------------------------- /tgfilestream/paralleltransfer.py: -------------------------------------------------------------------------------- 1 | # tgfilestream - A Telegram bot that can stream Telegram files to users over HTTP. 2 | # Copyright (C) 2019 Tulir Asokan 3 | # 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU Affero General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | # 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU Affero General Public License for more details. 13 | # 14 | # You should have received a copy of the GNU Affero General Public License 15 | # along with this program. If not, see . 16 | from typing import Union, AsyncGenerator, AsyncContextManager, Dict, Optional, List 17 | from contextlib import asynccontextmanager 18 | from dataclasses import dataclass 19 | import logging 20 | import asyncio 21 | import math 22 | 23 | from telethon import TelegramClient, utils 24 | from telethon.crypto import AuthKey 25 | from telethon.network import MTProtoSender 26 | from telethon.tl.functions.auth import ExportAuthorizationRequest, ImportAuthorizationRequest 27 | from telethon.tl.functions.upload import GetFileRequest 28 | from telethon.tl.types import (Document, InputFileLocation, InputDocumentFileLocation, 29 | InputPhotoFileLocation, InputPeerPhotoFileLocation, DcOption) 30 | from telethon.errors import DcIdInvalidError 31 | 32 | from .config import connection_limit 33 | 34 | TypeLocation = Union[Document, InputDocumentFileLocation, InputPeerPhotoFileLocation, 35 | InputFileLocation, InputPhotoFileLocation] 36 | 37 | root_log = logging.getLogger(__name__) 38 | 39 | if connection_limit > 25: 40 | root_log.warning("The connection limit should not be set above 25 to avoid" 41 | " infinite disconnect/reconnect loops") 42 | 43 | 44 | @dataclass 45 | class Connection: 46 | log: logging.Logger 47 | sender: MTProtoSender 48 | lock: asyncio.Lock 49 | users: int = 0 50 | 51 | 52 | class DCConnectionManager: 53 | log: logging.Logger 54 | client: TelegramClient 55 | loop: asyncio.AbstractEventLoop 56 | 57 | dc_id: int 58 | dc: Optional[DcOption] 59 | auth_key: Optional[AuthKey] 60 | connections: List[Connection] 61 | 62 | _list_lock: asyncio.Lock 63 | 64 | def __init__(self, client: TelegramClient, dc_id: int) -> None: 65 | self.log = root_log.getChild(f"dc{dc_id}") 66 | self.client = client 67 | self.dc_id = dc_id 68 | self.auth_key = None 69 | self.connections = [] 70 | self._list_lock = asyncio.Lock() 71 | self.loop = client.loop 72 | self.dc = None 73 | 74 | async def _new_connection(self) -> Connection: 75 | if not self.dc: 76 | self.dc = await self.client._get_dc(self.dc_id) 77 | sender = MTProtoSender(self.auth_key, self.loop, loggers=self.client._log) 78 | index = len(self.connections) + 1 79 | conn = Connection(sender=sender, log=self.log.getChild(f"conn{index}"), lock=asyncio.Lock()) 80 | self.connections.append(conn) 81 | async with conn.lock: 82 | conn.log.info("Connecting...") 83 | connection_info = self.client._connection(self.dc.ip_address, self.dc.port, self.dc.id, 84 | loop=self.loop, loggers=self.client._log, 85 | proxy=self.client._proxy) 86 | await sender.connect(connection_info) 87 | if not self.auth_key: 88 | await self._export_auth_key(conn) 89 | return conn 90 | 91 | async def _export_auth_key(self, conn: Connection) -> None: 92 | self.log.info(f"Exporting auth to DC {self.dc.id}" 93 | f" (main client is in {self.client.session.dc_id})") 94 | try: 95 | auth = await self.client(ExportAuthorizationRequest(self.dc.id)) 96 | except DcIdInvalidError: 97 | self.log.debug("Got DcIdInvalidError") 98 | self.auth_key = self.client.session.auth_key 99 | conn.sender.auth_key = self.auth_key 100 | return 101 | req = self.client._init_with(ImportAuthorizationRequest( 102 | id=auth.id, bytes=auth.bytes 103 | )) 104 | await conn.sender.send(req) 105 | self.auth_key = conn.sender.auth_key 106 | 107 | async def _next_connection(self) -> Connection: 108 | best_conn: Optional[Connection] = None 109 | for conn in self.connections: 110 | if not best_conn or conn.users < best_conn.users: 111 | best_conn = conn 112 | if (not best_conn or best_conn.users > 0) and len(self.connections) < connection_limit: 113 | best_conn = await self._new_connection() 114 | return best_conn 115 | 116 | @asynccontextmanager 117 | async def get_connection(self) -> AsyncContextManager[Connection]: 118 | async with self._list_lock: 119 | conn: Connection = await asyncio.shield(self._next_connection()) 120 | # The connection is locked so reconnections don't stack 121 | async with conn.lock: 122 | conn.users += 1 123 | try: 124 | yield conn 125 | finally: 126 | conn.users -= 1 127 | 128 | 129 | class ParallelTransferrer: 130 | log: logging.Logger = logging.getLogger(__name__) 131 | client: TelegramClient 132 | loop: asyncio.AbstractEventLoop 133 | 134 | dc_managers: Dict[int, DCConnectionManager] 135 | 136 | _counter: int 137 | 138 | def __init__(self, client: TelegramClient) -> None: 139 | self.client = client 140 | self.loop = self.client.loop 141 | self._counter = 0 142 | self.dc_managers = { 143 | 1: DCConnectionManager(client, 1), 144 | 2: DCConnectionManager(client, 2), 145 | 3: DCConnectionManager(client, 3), 146 | 4: DCConnectionManager(client, 4), 147 | 5: DCConnectionManager(client, 5), 148 | } 149 | 150 | def post_init(self) -> None: 151 | self.dc_managers[self.client.session.dc_id].auth_key = self.client.session.auth_key 152 | 153 | @property 154 | def next_index(self) -> int: 155 | self._counter += 1 156 | return self._counter 157 | 158 | async def _int_download(self, request: GetFileRequest, first_part: int, last_part: int, 159 | part_count: int, part_size: int, dc_id: int, first_part_cut: int, 160 | last_part_cut: int) -> AsyncGenerator[bytes, None]: 161 | log = self.log 162 | try: 163 | part = first_part 164 | dcm = self.dc_managers[dc_id] 165 | async with dcm.get_connection() as conn: 166 | log = conn.log 167 | while part <= last_part: 168 | result = await conn.sender.send(request) 169 | request.offset += part_size 170 | if part == first_part: 171 | yield result.bytes[first_part_cut:] 172 | elif part == last_part: 173 | yield result.bytes[:last_part_cut] 174 | else: 175 | yield result.bytes 176 | log.debug(f"Part {part}/{last_part} (total {part_count}) downloaded") 177 | part += 1 178 | log.debug("Parallel download finished") 179 | except (GeneratorExit, StopAsyncIteration, asyncio.CancelledError): 180 | log.debug("Parallel download interrupted") 181 | raise 182 | except Exception: 183 | log.debug("Parallel download errored", exc_info=True) 184 | 185 | def download(self, file: TypeLocation, file_size: int, offset: int, limit: int 186 | ) -> AsyncGenerator[bytes, None]: 187 | dc_id, location = utils.get_input_location(file) 188 | part_size = 512 * 1024 189 | first_part_cut = offset % part_size 190 | first_part = math.floor(offset / part_size) 191 | last_part_cut = part_size - (limit % part_size) 192 | last_part = math.ceil(limit / part_size) 193 | part_count = math.ceil(file_size / part_size) 194 | self.log.debug(f"Starting parallel download: chunks {first_part}-{last_part}" 195 | f" of {part_count} {location!s}") 196 | request = GetFileRequest(location, offset=first_part * part_size, limit=part_size) 197 | 198 | return self._int_download(request, first_part, last_part, part_count, part_size, dc_id, 199 | first_part_cut, last_part_cut) 200 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU AFFERO GENERAL PUBLIC LICENSE 2 | Version 3, 19 November 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU Affero General Public License is a free, copyleft license for 11 | software and other kinds of works, specifically designed to ensure 12 | cooperation with the community in the case of network server software. 13 | 14 | The licenses for most software and other practical works are designed 15 | to take away your freedom to share and change the works. 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"Knowingly relying" means you have 496 | actual knowledge that, but for the patent license, your conveying the 497 | covered work in a country, or your recipient's use of the covered work 498 | in a country, would infringe one or more identifiable patents in that 499 | country that you have reason to believe are valid. 500 | 501 | If, pursuant to or in connection with a single transaction or 502 | arrangement, you convey, or propagate by procuring conveyance of, a 503 | covered work, and grant a patent license to some of the parties 504 | receiving the covered work authorizing them to use, propagate, modify 505 | or convey a specific copy of the covered work, then the patent license 506 | you grant is automatically extended to all recipients of the covered 507 | work and works based on it. 508 | 509 | A patent license is "discriminatory" if it does not include within 510 | the scope of its coverage, prohibits the exercise of, or is 511 | conditioned on the non-exercise of one or more of the rights that are 512 | specifically granted under this License. You may not convey a covered 513 | work if you are a party to an arrangement with a third party that is 514 | in the business of distributing software, under which you make payment 515 | to the third party based on the extent of your activity of conveying 516 | the work, and under which the third party grants, to any of the 517 | parties who would receive the covered work from you, a discriminatory 518 | patent license (a) in connection with copies of the covered work 519 | conveyed by you (or copies made from those copies), or (b) primarily 520 | for and in connection with specific products or compilations that 521 | contain the covered work, unless you entered into that arrangement, 522 | or that patent license was granted, prior to 28 March 2007. 523 | 524 | Nothing in this License shall be construed as excluding or limiting 525 | any implied license or other defenses to infringement that may 526 | otherwise be available to you under applicable patent law. 527 | 528 | 12. No Surrender of Others' Freedom. 529 | 530 | If conditions are imposed on you (whether by court order, agreement or 531 | otherwise) that contradict the conditions of this License, they do not 532 | excuse you from the conditions of this License. If you cannot convey a 533 | covered work so as to satisfy simultaneously your obligations under this 534 | License and any other pertinent obligations, then as a consequence you may 535 | not convey it at all. For example, if you agree to terms that obligate you 536 | to collect a royalty for further conveying from those to whom you convey 537 | the Program, the only way you could satisfy both those terms and this 538 | License would be to refrain entirely from conveying the Program. 539 | 540 | 13. Remote Network Interaction; Use with the GNU General Public License. 541 | 542 | Notwithstanding any other provision of this License, if you modify the 543 | Program, your modified version must prominently offer all users 544 | interacting with it remotely through a computer network (if your version 545 | supports such interaction) an opportunity to receive the Corresponding 546 | Source of your version by providing access to the Corresponding Source 547 | from a network server at no charge, through some standard or customary 548 | means of facilitating copying of software. This Corresponding Source 549 | shall include the Corresponding Source for any work covered by version 3 550 | of the GNU General Public License that is incorporated pursuant to the 551 | following paragraph. 552 | 553 | Notwithstanding any other provision of this License, you have 554 | permission to link or combine any covered work with a work licensed 555 | under version 3 of the GNU General Public License into a single 556 | combined work, and to convey the resulting work. The terms of this 557 | License will continue to apply to the part which is the covered work, 558 | but the work with which it is combined will remain governed by version 559 | 3 of the GNU General Public License. 560 | 561 | 14. Revised Versions of this License. 562 | 563 | The Free Software Foundation may publish revised and/or new versions of 564 | the GNU Affero General Public License from time to time. Such new versions 565 | will be similar in spirit to the present version, but may differ in detail to 566 | address new problems or concerns. 567 | 568 | Each version is given a distinguishing version number. If the 569 | Program specifies that a certain numbered version of the GNU Affero General 570 | Public License "or any later version" applies to it, you have the 571 | option of following the terms and conditions either of that numbered 572 | version or of any later version published by the Free Software 573 | Foundation. If the Program does not specify a version number of the 574 | GNU Affero General Public License, you may choose any version ever published 575 | by the Free Software Foundation. 576 | 577 | If the Program specifies that a proxy can decide which future 578 | versions of the GNU Affero General Public License can be used, that proxy's 579 | public statement of acceptance of a version permanently authorizes you 580 | to choose that version for the Program. 581 | 582 | Later license versions may give you additional or different 583 | permissions. However, no additional obligations are imposed on any 584 | author or copyright holder as a result of your choosing to follow a 585 | later version. 586 | 587 | 15. Disclaimer of Warranty. 588 | 589 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 590 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 591 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 592 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 593 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 594 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 595 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 596 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 597 | 598 | 16. Limitation of Liability. 599 | 600 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 601 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 602 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 603 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 604 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 605 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 606 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 607 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 608 | SUCH DAMAGES. 609 | 610 | 17. Interpretation of Sections 15 and 16. 611 | 612 | If the disclaimer of warranty and limitation of liability provided 613 | above cannot be given local legal effect according to their terms, 614 | reviewing courts shall apply local law that most closely approximates 615 | an absolute waiver of all civil liability in connection with the 616 | Program, unless a warranty or assumption of liability accompanies a 617 | copy of the Program in return for a fee. 618 | 619 | END OF TERMS AND CONDITIONS 620 | 621 | How to Apply These Terms to Your New Programs 622 | 623 | If you develop a new program, and you want it to be of the greatest 624 | possible use to the public, the best way to achieve this is to make it 625 | free software which everyone can redistribute and change under these terms. 626 | 627 | To do so, attach the following notices to the program. It is safest 628 | to attach them to the start of each source file to most effectively 629 | state the exclusion of warranty; and each file should have at least 630 | the "copyright" line and a pointer to where the full notice is found. 631 | 632 | 633 | Copyright (C) 634 | 635 | This program is free software: you can redistribute it and/or modify 636 | it under the terms of the GNU Affero General Public License as published by 637 | the Free Software Foundation, either version 3 of the License, or 638 | (at your option) any later version. 639 | 640 | This program is distributed in the hope that it will be useful, 641 | but WITHOUT ANY WARRANTY; without even the implied warranty of 642 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 643 | GNU Affero General Public License for more details. 644 | 645 | You should have received a copy of the GNU Affero General Public License 646 | along with this program. If not, see . 647 | 648 | Also add information on how to contact you by electronic and paper mail. 649 | 650 | If your software can interact with users remotely through a computer 651 | network, you should also make sure that it provides a way for users to 652 | get its source. For example, if your program is a web application, its 653 | interface could display a "Source" link that leads users to an archive 654 | of the code. There are many ways you could offer source, and different 655 | solutions will be better for different programs; see section 13 for the 656 | specific requirements. 657 | 658 | You should also get your employer (if you work as a programmer) or school, 659 | if any, to sign a "copyright disclaimer" for the program, if necessary. 660 | For more information on this, and how to apply and follow the GNU AGPL, see 661 | . 662 | --------------------------------------------------------------------------------