# Hydrogram - Telegram MTProto API Client Library for Python # Copyright (C) 2017-2023 Dan # Copyright (C) 2023-present Hydrogram # # This file is part of Hydrogram. # # Hydrogram is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser General Public License as published # by the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # Hydrogram 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 General Public License for more details. # # You should have received a copy of the GNU Lesser General Public License # along with Hydrogram. If not, see . from __future__ import annotations import asyncio import contextlib import functools import inspect import logging import os import platform import random import re import shutil import string import sys from concurrent.futures.thread import ThreadPoolExecutor from datetime import datetime, timedelta from hashlib import sha256 from importlib import import_module from io import BytesIO, StringIO from mimetypes import MimeTypes from pathlib import Path from typing import TYPE_CHECKING, Callable import hydrogram from hydrogram import __license__, __version__, enums, raw, utils from hydrogram.crypto import aes from hydrogram.errors import ( AuthBytesInvalid, BadRequest, CDNFileHashMismatch, ChannelPrivate, SessionPasswordNeeded, VolumeLocNotFound, ) from hydrogram.handlers.handler import Handler from hydrogram.methods import Methods from hydrogram.session import Auth, Session from hydrogram.storage import BaseStorage, SQLiteStorage from hydrogram.types import ListenerTypes, TermsOfService, User from hydrogram.utils import ainput from .dispatcher import Dispatcher from .file_id import FileId, FileType, ThumbnailSource from .mime_types import mime_types from .parser import Parser from .session.internals import MsgId if TYPE_CHECKING: from collections.abc import AsyncGenerator log = logging.getLogger(__name__) class Client(Methods): """Hydrogram Client, the main means for interacting with Telegram. Parameters: name (``str``): A name for the client, e.g.: "my_account". api_id (``int`` | ``str``, *optional*): The *api_id* part of the Telegram API key, as integer or string. E.g.: 12345 or "12345". api_hash (``str``, *optional*): The *api_hash* part of the Telegram API key, as string. E.g.: "0123456789abcdef0123456789abcdef". app_version (``str``, *optional*): Application version. Defaults to "Hydrogram x.y.z". device_model (``str``, *optional*): Device model. Defaults to *platform.python_implementation() + " " + platform.python_version()*. system_version (``str``, *optional*): Operating System version. Defaults to *platform.system() + " " + platform.release()*. lang_code (``str``, *optional*): Code of the language used on the client, in ISO 639-1 standard. Defaults to "en". ipv6 (``bool``, *optional*): Pass True to connect to Telegram using IPv6. Defaults to False (IPv4). proxy (``dict``, *optional*): The Proxy settings as dict. E.g.: *dict(scheme="socks5", hostname="11.22.33.44", port=1234, username="user", password="pass")*. The *username* and *password* can be omitted if the proxy doesn't require authorization. test_mode (``bool``, *optional*): Enable or disable login to the test servers. Only applicable for new sessions and will be ignored in case previously created sessions are loaded. Defaults to False. bot_token (``str``, *optional*): Pass the Bot API token to create a bot session, e.g.: "123456:ABC-DEF1234ghIkl-zyx57W2v1u123ew11" Only applicable for new sessions. session_string (``str``, *optional*): Pass a session string to load the session in-memory. Implies ``in_memory=True``. session_storage_engine (:obj:`~hydrogram.storage.BaseStorage`, *optional*): Pass an instance of your own implementation of session storage engine. Useful when you want to store your session in databases like Mongo, Redis, etc. in_memory (``bool``, *optional*): Pass True to start an in-memory session that will be discarded as soon as the client stops. In order to reconnect again using an in-memory session without having to login again, you can use :meth:`~hydrogram.Client.export_session_string` before stopping the client to get a session string you can pass to the ``session_string`` parameter. Defaults to False. phone_number (``str``, *optional*): Pass the phone number as string (with the Country Code prefix included) to avoid entering it manually. Only applicable for new sessions. phone_code (``str``, *optional*): Pass the phone code as string (for test numbers only) to avoid entering it manually. Only applicable for new sessions. password (``str``, *optional*): Pass the Two-Step Verification password as string (if required) to avoid entering it manually. Only applicable for new sessions. workers (``int``, *optional*): Number of maximum concurrent workers for handling incoming updates. Defaults to ``min(32, os.cpu_count() + 4)``. workdir (``str``, *optional*): Define a custom working directory. The working directory is the location in the filesystem where Hydrogram will store the session files. Defaults to the parent directory of the main script. plugins (``dict``, *optional*): Smart Plugins settings as dict, e.g.: *dict(root="plugins")*. parse_mode (:obj:`~hydrogram.enums.ParseMode`, *optional*): Set the global parse mode of the client. By default, texts are parsed using both Markdown and HTML styles. You can combine both syntaxes together. no_updates (``bool``, *optional*): Pass True to disable incoming updates. When updates are disabled the client can't receive messages or other updates. Useful for batch programs that don't need to deal with updates. Defaults to False (updates enabled and received). takeout (``bool``, *optional*): Pass True to let the client use a takeout session instead of a normal one, implies *no_updates=True*. Useful for exporting Telegram data. Methods invoked inside a takeout session (such as get_chat_history, download_media, ...) are less prone to throw FloodWait exceptions. Only available for users, bots will ignore this parameter. Defaults to False (normal session). sleep_threshold (``int``, *optional*): Set a sleep threshold for flood wait exceptions happening globally in this client instance, below which any request that raises a flood wait will be automatically invoked again after sleeping for the required amount of time. Flood wait exceptions requiring higher waiting times will be raised. Defaults to 10 seconds. hide_password (``bool``, *optional*): Pass True to hide the password when typing it during the login. Defaults to False, because ``getpass`` (the library used) is known to be problematic in some terminal environments. max_concurrent_transmissions (``bool``, *optional*): Set the maximum amount of concurrent transmissions (uploads & downloads). A value that is too high may result in network related issues. Defaults to 1. """ APP_VERSION = f"Hydrogram {__version__}" DEVICE_MODEL = f"{platform.python_implementation()} {platform.python_version()}" SYSTEM_VERSION = f"{platform.system()} {platform.release()}" LANG_CODE = "en" PARENT_DIR = Path(sys.argv[0]).parent INVITE_LINK_RE = re.compile( r"^(?:https?://)?(?:www\.)?(?:t(?:elegram)?\.(?:org|me|dog)/(?:joinchat/|\+))([\w-]+)$" ) WORKERS = min(32, (os.cpu_count() or 0) + 4) # os.cpu_count() can be None WORKDIR = PARENT_DIR # Interval of seconds in which the updates watchdog will kick in UPDATES_WATCHDOG_INTERVAL = 15 * 60 MAX_CONCURRENT_TRANSMISSIONS = 1 mimetypes = MimeTypes() mimetypes.readfp(StringIO(mime_types)) def __init__( self, name: str, api_id: int | str | None = None, api_hash: str | None = None, app_version: str = APP_VERSION, device_model: str = DEVICE_MODEL, system_version: str = SYSTEM_VERSION, lang_code: str = LANG_CODE, ipv6: bool = False, proxy: dict | None = None, test_mode: bool = False, bot_token: str | None = None, session_string: str | None = None, session_storage_engine: BaseStorage | None = None, in_memory: bool | None = None, phone_number: str | None = None, phone_code: str | None = None, password: str | None = None, workers: int = WORKERS, workdir: str = str(WORKDIR), plugins: dict | None = None, parse_mode: enums.ParseMode = enums.ParseMode.DEFAULT, no_updates: bool | None = None, takeout: bool | None = None, sleep_threshold: int = Session.SLEEP_THRESHOLD, hide_password: bool = False, max_concurrent_transmissions: int = MAX_CONCURRENT_TRANSMISSIONS, ): super().__init__() self.name = name self.api_id = int(api_id) if api_id else None self.api_hash = api_hash self.app_version = app_version self.device_model = device_model self.system_version = system_version self.lang_code = lang_code.lower() self.ipv6 = ipv6 self.proxy = proxy self.test_mode = test_mode self.bot_token = bot_token self.session_string = session_string self.in_memory = in_memory self.phone_number = phone_number self.phone_code = phone_code self.password = password self.workers = workers self.workdir = Path(workdir) self.plugins = plugins self.parse_mode = parse_mode self.no_updates = no_updates self.takeout = takeout self.sleep_threshold = sleep_threshold self.hide_password = hide_password self.max_concurrent_transmissions = max_concurrent_transmissions self.executor = ThreadPoolExecutor(self.workers, thread_name_prefix="Handler") if self.session_string: self.storage = SQLiteStorage( self.name, session_string=self.session_string, use_memory=True ) elif isinstance(session_storage_engine, BaseStorage): self.storage = session_storage_engine elif self.in_memory: self.storage = SQLiteStorage(self.name, use_memory=True) else: self.storage = SQLiteStorage(self.name, self.workdir) self.dispatcher = Dispatcher(self) self.rnd_id = MsgId self.parser = Parser(self) self.session = None self.media_sessions = {} self.media_sessions_lock = asyncio.Lock() self.file_lock = asyncio.Lock() self.save_file_semaphore = asyncio.Semaphore(self.max_concurrent_transmissions) self.get_file_semaphore = asyncio.Semaphore(self.max_concurrent_transmissions) self.is_connected = None self.is_initialized = None self.takeout_id = None self.disconnect_handler = None self.me: User | None = None self.message_cache = Cache(10000) # Sometimes, for some reason, the server will stop sending updates and will only respond to pings. # This watchdog will invoke updates.GetState in order to wake up the server and enable it sending updates again # after some idle time has been detected. self.updates_watchdog_task = None self.updates_watchdog_event = asyncio.Event() self.last_update_time = datetime.now() self.loop = asyncio.get_event_loop() self.listeners = {listener_type: [] for listener_type in ListenerTypes} async def __aenter__(self): return await self.start() async def __aexit__(self, *args): with contextlib.suppress(ConnectionError): await self.stop() async def updates_watchdog(self): while True: try: await asyncio.wait_for( self.updates_watchdog_event.wait(), self.UPDATES_WATCHDOG_INTERVAL ) except asyncio.TimeoutError: pass else: break if datetime.now() - self.last_update_time > timedelta( seconds=self.UPDATES_WATCHDOG_INTERVAL ): await self.invoke(raw.functions.updates.GetState()) async def authorize(self) -> User: if self.bot_token: return await self.sign_in_bot(self.bot_token) print(f"Welcome to Hydrogram (version {__version__})") print( f"Hydrogram is free software and comes with ABSOLUTELY NO WARRANTY. Licensed\n" f"under the terms of the {__license__}.\n" ) while True: try: if not self.phone_number: while True: value = await ainput("Enter phone number or bot token: ") if not value: continue confirm = (await ainput(f'Is "{value}" correct? (y/N): ')).lower() if confirm == "y": break if ":" in value: self.bot_token = value return await self.sign_in_bot(value) self.phone_number = value sent_code = await self.send_code(self.phone_number) except BadRequest as e: print(e.MESSAGE) self.phone_number = None self.bot_token = None else: break sent_code_descriptions = { enums.SentCodeType.APP: "Telegram app", enums.SentCodeType.SMS: "SMS", enums.SentCodeType.CALL: "phone call", enums.SentCodeType.FLASH_CALL: "phone flash call", enums.SentCodeType.FRAGMENT_SMS: "Fragment SMS", enums.SentCodeType.EMAIL_CODE: "email code", } print(f"The confirmation code has been sent via {sent_code_descriptions[sent_code.type]}") while True: if not self.phone_code: self.phone_code = await ainput("Enter confirmation code: ") try: signed_in = await self.sign_in( self.phone_number, sent_code.phone_code_hash, self.phone_code ) except BadRequest as e: print(e.MESSAGE) self.phone_code = None except SessionPasswordNeeded as e: print(e.MESSAGE) while True: print(f"Password hint: {await self.get_password_hint()}") if not self.password: self.password = await ainput( "Enter password (empty to recover): ", hide=self.hide_password, ) try: if self.password: return await self.check_password(self.password) confirm = await ainput("Confirm password recovery (y/n): ") if confirm == "y": email_pattern = await self.send_recovery_code() print(f"The recovery code has been sent to {email_pattern}") while True: recovery_code = await ainput("Enter recovery code: ") try: return await self.recover_password(recovery_code) except BadRequest as e: print(e.MESSAGE) except Exception as e: log.exception(e) raise else: self.password = None except BadRequest as e: print(e.MESSAGE) self.password = None else: break if isinstance(signed_in, User): return signed_in while True: first_name = await ainput("Enter first name: ") last_name = await ainput("Enter last name (empty to skip): ") try: signed_up = await self.sign_up( self.phone_number, sent_code.phone_code_hash, first_name, last_name ) except BadRequest as e: print(e.MESSAGE) else: break if isinstance(signed_in, TermsOfService): print("\n" + signed_in.text + "\n") await self.accept_terms_of_service(signed_in.id) return signed_up def set_parse_mode(self, parse_mode: enums.ParseMode | None): """Set the parse mode to be used globally by the client. When setting the parse mode with this method, all other methods having a *parse_mode* parameter will follow the global value by default. Parameters: parse_mode (:obj:`~hydrogram.enums.ParseMode`): By default, texts are parsed using both Markdown and HTML styles. You can combine both syntaxes together. Example: .. code-block:: python from hydrogram import enums # Default combined mode: Markdown + HTML await app.send_message("me", "1. **markdown** and html") # Force Markdown-only, HTML is disabled app.set_parse_mode(enums.ParseMode.MARKDOWN) await app.send_message("me", "2. **markdown** and html") # Force HTML-only, Markdown is disabled app.set_parse_mode(enums.ParseMode.HTML) await app.send_message("me", "3. **markdown** and html") # Disable the parser completely app.set_parse_mode(enums.ParseMode.DISABLED) await app.send_message("me", "4. **markdown** and html") # Bring back the default combined mode app.set_parse_mode(enums.ParseMode.DEFAULT) await app.send_message("me", "5. **markdown** and html") """ self.parse_mode = parse_mode async def fetch_peers( self, peers: list[raw.types.User | raw.types.Chat | raw.types.Channel] ) -> bool: is_min = False parsed_peers = [] for peer in peers: if getattr(peer, "min", False): is_min = True continue username = None phone_number = None if isinstance(peer, raw.types.User): peer_id = peer.id access_hash = peer.access_hash username = ( peer.username.lower() if peer.username else peer.usernames[0].username.lower() if peer.usernames else None ) phone_number = peer.phone peer_type = "bot" if peer.bot else "user" elif isinstance(peer, (raw.types.Chat, raw.types.ChatForbidden)): peer_id = -peer.id access_hash = 0 peer_type = "group" elif isinstance(peer, raw.types.Channel): peer_id = utils.get_channel_id(peer.id) access_hash = peer.access_hash username = ( peer.username.lower() if peer.username else peer.usernames[0].username.lower() if peer.usernames else None ) peer_type = "channel" if peer.broadcast else "supergroup" elif isinstance(peer, raw.types.ChannelForbidden): peer_id = utils.get_channel_id(peer.id) access_hash = peer.access_hash peer_type = "channel" if peer.broadcast else "supergroup" else: continue parsed_peers.append((peer_id, access_hash, peer_type, username, phone_number)) await self.storage.update_peers(parsed_peers) return is_min async def handle_updates(self, updates): self.last_update_time = datetime.now() if isinstance(updates, (raw.types.Updates, raw.types.UpdatesCombined)): is_min = any(( await self.fetch_peers(updates.users), await self.fetch_peers(updates.chats), )) users = {u.id: u for u in updates.users} chats = {c.id: c for c in updates.chats} for update in updates.updates: channel_id = getattr( getattr(getattr(update, "message", None), "peer_id", None), "channel_id", None, ) or getattr(update, "channel_id", None) pts = getattr(update, "pts", None) pts_count = getattr(update, "pts_count", None) if isinstance(update, raw.types.UpdateChannelTooLong): log.info(update) if isinstance(update, raw.types.UpdateNewChannelMessage) and is_min: message = update.message if not isinstance(message, raw.types.MessageEmpty): try: diff = await self.invoke( raw.functions.updates.GetChannelDifference( channel=await self.resolve_peer( utils.get_channel_id(channel_id) ), filter=raw.types.ChannelMessagesFilter( ranges=[ raw.types.MessageRange( min_id=update.message.id, max_id=update.message.id, ) ] ), pts=pts - pts_count, limit=pts, ) ) except ChannelPrivate: pass else: if not isinstance(diff, raw.types.updates.ChannelDifferenceEmpty): users.update({u.id: u for u in diff.users}) chats.update({c.id: c for c in diff.chats}) self.dispatcher.updates_queue.put_nowait((update, users, chats)) elif isinstance(updates, (raw.types.UpdateShortMessage, raw.types.UpdateShortChatMessage)): diff = await self.invoke( raw.functions.updates.GetDifference( pts=updates.pts - updates.pts_count, date=updates.date, qts=-1 ) ) if diff.new_messages: self.dispatcher.updates_queue.put_nowait(( raw.types.UpdateNewMessage( message=diff.new_messages[0], pts=updates.pts, pts_count=updates.pts_count, ), {u.id: u for u in diff.users}, {c.id: c for c in diff.chats}, )) elif diff.other_updates: # The other_updates list can be empty self.dispatcher.updates_queue.put_nowait((diff.other_updates[0], {}, {})) elif isinstance(updates, raw.types.UpdateShort): self.dispatcher.updates_queue.put_nowait((updates.update, {}, {})) elif isinstance(updates, raw.types.UpdatesTooLong): log.info(updates) async def load_session(self): await self.storage.open() session_empty = any([ await self.storage.test_mode() is None, await self.storage.auth_key() is None, await self.storage.user_id() is None, await self.storage.is_bot() is None, ]) if session_empty: if not self.api_id or not self.api_hash: raise AttributeError( "The API key is required for new authorizations. " "More info: https://docs.hydrogram.org/en/latest/start/auth.html" ) await self.storage.api_id(self.api_id) await self.storage.dc_id(2) await self.storage.date(0) await self.storage.test_mode(self.test_mode) await self.storage.auth_key( await Auth( self, await self.storage.dc_id(), await self.storage.test_mode() ).create() ) await self.storage.user_id(None) await self.storage.is_bot(None) elif not await self.storage.api_id(): if self.api_id: await self.storage.api_id(self.api_id) else: while True: try: value = int(await ainput("Enter the api_id part of the API key: ")) if value <= 0: print("Invalid value") continue confirm = (await ainput(f'Is "{value}" correct? (y/N): ')).lower() if confirm == "y": await self.storage.api_id(value) break except Exception as e: print(e) def load_plugins(self): if not self.plugins: return plugins = self.plugins.copy() for option in ["include", "exclude"]: if plugins.get(option, []): plugins[option] = [ (i.split()[0], i.split()[1:] or None) for i in self.plugins[option] ] if plugins.get("enabled", True): root = plugins["root"] include = plugins.get("include", []) exclude = plugins.get("exclude", []) count = 0 if not include: for path in sorted(Path(root.replace(".", "/")).rglob("*.py")): module_path = ".".join((*path.parent.parts, path.stem)) module = import_module(module_path) for name in vars(module): with contextlib.suppress(Exception): for handler, group in getattr(module, name).handlers: if isinstance(handler, Handler) and isinstance(group, int): self.add_handler(handler, group) log.info( "[%s] [LOAD] %s('%s') in group %s from '%s'", self.name, type(handler).__name__, name, group, module_path, ) count += 1 else: for path, handlers in include: module_path = f"{root}.{path}" warn_non_existent_functions = True try: module = import_module(module_path) except ImportError: log.warning( '[%s] [LOAD] Ignoring non-existent module "%s"', self.name, module_path, ) continue if "__path__" in dir(module): log.warning( '[%s] [LOAD] Ignoring namespace "%s"', self.name, module_path, ) continue if handlers is None: handlers = vars(module).keys() warn_non_existent_functions = False for name in handlers: try: for handler, group in getattr(module, name).handlers: if isinstance(handler, Handler) and isinstance(group, int): self.add_handler(handler, group) log.info( "[%s] [LOAD] %s('%s') in group %s from '%s'", self.name, type(handler).__name__, name, group, module_path, ) count += 1 except Exception: if warn_non_existent_functions: log.warning( "[%s] [LOAD] Ignoring non-existent function '%s' from '%s'", self.name, name, module_path, ) if exclude: for path, handlers in exclude: module_path = f"{root}.{path}" warn_non_existent_functions = True try: module = import_module(module_path) except ImportError: log.warning( '[%s] [UNLOAD] Ignoring non-existent module "%s"', self.name, module_path, ) continue if "__path__" in dir(module): log.warning( '[%s] [UNLOAD] Ignoring namespace "%s"', self.name, module_path, ) continue if handlers is None: handlers = vars(module).keys() warn_non_existent_functions = False for name in handlers: try: for handler, group in getattr(module, name).handlers: if isinstance(handler, Handler) and isinstance(group, int): self.remove_handler(handler, group) log.info( "[%s] [UNLOAD] %s('%s') from group '%s' in '%s'", self.name, type(handler).__name__, name, group, module_path, ) count -= 1 except Exception: if warn_non_existent_functions: log.warning( "[%s] [UNLOAD] Ignoring non-existent function '%s' from '%s'", self.name, name, module_path, ) if count > 0: log.info( "[%s] Successfully loaded %s plugin%s from '%s'", self.name, count, "" if count == 1 else "s", root, ) else: log.warning('[%s] No plugin loaded from "%s"', self.name, root) async def handle_download(self, packet): ( file_id, directory, file_name, in_memory, file_size, progress, progress_args, ) = packet None if in_memory else Path(directory).mkdir(parents=True, exist_ok=True) file_path = Path(directory).resolve() / file_name random_suffix = "".join(random.choices(string.ascii_letters + string.digits, k=8)) temp_file_path = file_path.with_name(file_path.stem + "_" + random_suffix + ".temp") file = BytesIO() if in_memory else Path(temp_file_path).open("wb") # noqa: SIM115 file is closed manually try: async for chunk in self.get_file(file_id, file_size, 0, 0, progress, progress_args): file.write(chunk) except BaseException as e: if not in_memory: file.close() Path(temp_file_path).unlink() if isinstance(e, asyncio.CancelledError): raise e if isinstance(e, hydrogram.errors.FloodWait): raise e return None else: if in_memory: file.name = file_name return file file.close() async with self.file_lock: final_file_path: Path = file_path counter = 1 while final_file_path.exists(): final_file_path = file_path.with_name( f"{file_path.stem}({counter}){file_path.suffix}" ) counter += 1 shutil.move(temp_file_path, final_file_path) return final_file_path async def get_file( self, file_id: FileId, file_size: int = 0, limit: int = 0, offset: int = 0, progress: Callable | None = None, progress_args: tuple = (), ) -> AsyncGenerator[bytes, None]: async with self.get_file_semaphore: file_type = file_id.file_type if file_type == FileType.CHAT_PHOTO: if file_id.chat_id > 0: peer = raw.types.InputPeerUser( user_id=file_id.chat_id, access_hash=file_id.chat_access_hash ) elif file_id.chat_access_hash == 0: peer = raw.types.InputPeerChat(chat_id=-file_id.chat_id) else: peer = raw.types.InputPeerChannel( channel_id=utils.get_channel_id(file_id.chat_id), access_hash=file_id.chat_access_hash, ) location = raw.types.InputPeerPhotoFileLocation( peer=peer, photo_id=file_id.media_id, big=file_id.thumbnail_source == ThumbnailSource.CHAT_PHOTO_BIG, ) elif file_type == FileType.PHOTO: location = raw.types.InputPhotoFileLocation( id=file_id.media_id, access_hash=file_id.access_hash, file_reference=file_id.file_reference, thumb_size=file_id.thumbnail_size, ) else: location = raw.types.InputDocumentFileLocation( id=file_id.media_id, access_hash=file_id.access_hash, file_reference=file_id.file_reference, thumb_size=file_id.thumbnail_size, ) current = 0 total = abs(limit) or (1 << 31) - 1 chunk_size = 1024 * 1024 offset_bytes = abs(offset) * chunk_size dc_id = file_id.dc_id try: session = self.media_sessions.get(dc_id) if not session: auth_key = ( await Auth(self, dc_id, await self.storage.test_mode()).create() if dc_id != await self.storage.dc_id() else await self.storage.auth_key() ) session = self.media_sessions[dc_id] = Session( self, dc_id, auth_key, await self.storage.test_mode(), is_media=True ) await session.start() if dc_id != await self.storage.dc_id(): for _ in range(3): exported_auth = await self.invoke( raw.functions.auth.ExportAuthorization(dc_id=dc_id) ) try: await session.invoke( raw.functions.auth.ImportAuthorization( id=exported_auth.id, bytes=exported_auth.bytes ) ) break except AuthBytesInvalid: continue else: raise AuthBytesInvalid while True: r = await session.invoke( raw.functions.upload.GetFile( location=location, offset=offset_bytes, limit=chunk_size ), sleep_threshold=30, ) if isinstance(r, raw.types.upload.File): chunk = r.bytes yield chunk current += 1 offset_bytes += chunk_size if progress: func = functools.partial( progress, min(offset_bytes, file_size) if file_size != 0 else offset_bytes, file_size, *progress_args, ) if inspect.iscoroutinefunction(progress): await func() else: await self.loop.run_in_executor(self.executor, func) if len(chunk) < chunk_size or current >= total: break elif isinstance(r, raw.types.upload.FileCdnRedirect): cdn_session = Session( self, r.dc_id, await Auth(self, r.dc_id, await self.storage.test_mode()).create(), await self.storage.test_mode(), is_media=True, is_cdn=True, ) try: await cdn_session.start() while True: r2 = await cdn_session.invoke( raw.functions.upload.GetCdnFile( file_token=r.file_token, offset=offset_bytes, limit=chunk_size, ) ) if isinstance(r2, raw.types.upload.CdnFileReuploadNeeded): try: await session.invoke( raw.functions.upload.ReuploadCdnFile( file_token=r.file_token, request_token=r2.request_token, ) ) except VolumeLocNotFound: break else: continue chunk = r2.bytes # https://core.telegram.org/cdn#decrypting-files decrypted_chunk = aes.ctr256_decrypt( chunk, r.encryption_key, bytearray( r.encryption_iv[:-4] + (offset_bytes // 16).to_bytes(4, "big") ), ) hashes = await session.invoke( raw.functions.upload.GetCdnFileHashes( file_token=r.file_token, offset=offset_bytes ) ) # https://core.telegram.org/cdn#verifying-files for i, h in enumerate(hashes): cdn_chunk = decrypted_chunk[h.limit * i : h.limit * (i + 1)] CDNFileHashMismatch.check( h.hash == sha256(cdn_chunk).digest(), "h.hash == sha256(cdn_chunk).digest()", ) yield decrypted_chunk current += 1 offset_bytes += chunk_size if progress: func = functools.partial( progress, min(offset_bytes, file_size) if file_size != 0 else offset_bytes, file_size, *progress_args, ) if inspect.iscoroutinefunction(progress): await func() else: await self.loop.run_in_executor(self.executor, func) if len(chunk) < chunk_size or current >= total: break finally: await cdn_session.stop() except hydrogram.StopTransmission: raise except hydrogram.errors.FloodWait: raise except Exception as e: log.exception(e) def guess_mime_type(self, filename: str) -> str | None: return self.mimetypes.guess_type(filename)[0] def guess_extension(self, mime_type: str) -> str | None: return self.mimetypes.guess_extension(mime_type) class Cache: def __init__(self, capacity: int): self.capacity = capacity self.store = {} def __getitem__(self, key): return self.store.get(key, None) def __setitem__(self, key, value): if key in self.store: del self.store[key] self.store[key] = value if len(self.store) > self.capacity: for _ in range(self.capacity // 2 + 1): del self.store[next(iter(self.store))]