""" Utilities for working with the Telegram API itself (such as handy methods to convert between an entity like an User, Chat, etc. into its Input version) """ import math from mimetypes import add_type, guess_extension from .tl import TLObject from .tl.types import ( Channel, ChannelForbidden, Chat, ChatEmpty, ChatForbidden, ChatFull, ChatPhoto, InputPeerChannel, InputPeerChat, InputPeerUser, InputPeerEmpty, MessageMediaDocument, MessageMediaPhoto, PeerChannel, InputChannel, UserEmpty, InputUser, InputUserEmpty, InputUserSelf, InputPeerSelf, PeerChat, PeerUser, User, UserFull, UserProfilePhoto, Document, MessageMediaContact, MessageMediaEmpty, MessageMediaGame, MessageMediaGeo, MessageMediaUnsupported, MessageMediaVenue, InputMediaContact, InputMediaDocument, InputMediaEmpty, InputMediaGame, InputMediaGeoPoint, InputMediaPhoto, InputMediaVenue, InputDocument, DocumentEmpty, InputDocumentEmpty, Message, GeoPoint, InputGeoPoint, GeoPointEmpty, InputGeoPointEmpty, Photo, InputPhoto, PhotoEmpty, InputPhotoEmpty, FileLocation, ChatPhotoEmpty, UserProfilePhotoEmpty, FileLocationUnavailable, InputMediaUploadedDocument, InputMediaUploadedPhoto, DocumentAttributeFilename) def get_display_name(entity): """Gets the input peer for the given "entity" (user, chat or channel) Returns None if it was not found""" if isinstance(entity, User): if entity.last_name and entity.first_name: return '{} {}'.format(entity.first_name, entity.last_name) elif entity.first_name: return entity.first_name elif entity.last_name: return entity.last_name else: return '(No name)' if isinstance(entity, Chat) or isinstance(entity, Channel): return entity.title return '(unknown)' # For some reason, .webp (stickers' format) is not registered add_type('image/webp', '.webp') def get_extension(media): """Gets the corresponding extension for any Telegram media""" # Photos are always compressed as .jpg by Telegram if (isinstance(media, UserProfilePhoto) or isinstance(media, ChatPhoto) or isinstance(media, MessageMediaPhoto)): return '.jpg' # Documents will come with a mime type if isinstance(media, MessageMediaDocument): if isinstance(media.document, Document): if media.document.mime_type == 'application/octet-stream': # Octet stream are just bytes, which have no default extension return '' else: extension = guess_extension(media.document.mime_type) return extension if extension else '' return '' def _raise_cast_fail(entity, target): raise ValueError('Cannot cast {} to any kind of {}.' .format(type(entity).__name__, target)) def get_input_peer(entity): """Gets the input peer for the given "entity" (user, chat or channel). A ValueError is raised if the given entity isn't a supported type.""" if not isinstance(entity, TLObject): _raise_cast_fail(entity, 'InputPeer') if type(entity).SUBCLASS_OF_ID == 0xc91c90b6: # crc32(b'InputPeer') return entity if isinstance(entity, User): if entity.is_self: return InputPeerSelf() else: return InputPeerUser(entity.id, entity.access_hash) if any(isinstance(entity, c) for c in ( Chat, ChatEmpty, ChatForbidden)): return InputPeerChat(entity.id) if any(isinstance(entity, c) for c in ( Channel, ChannelForbidden)): return InputPeerChannel(entity.id, entity.access_hash) # Less common cases if isinstance(entity, UserEmpty): return InputPeerEmpty() if isinstance(entity, InputUser): return InputPeerUser(entity.user_id, entity.access_hash) if isinstance(entity, UserFull): return get_input_peer(entity.user) if isinstance(entity, ChatFull): return InputPeerChat(entity.id) if isinstance(entity, PeerChat): return InputPeerChat(entity.chat_id) _raise_cast_fail(entity, 'InputPeer') def get_input_channel(entity): """Similar to get_input_peer, but for InputChannel's alone""" if not isinstance(entity, TLObject): _raise_cast_fail(entity, 'InputChannel') if type(entity).SUBCLASS_OF_ID == 0x40f202fd: # crc32(b'InputChannel') return entity if isinstance(entity, Channel) or isinstance(entity, ChannelForbidden): return InputChannel(entity.id, entity.access_hash) if isinstance(entity, InputPeerChannel): return InputChannel(entity.channel_id, entity.access_hash) _raise_cast_fail(entity, 'InputChannel') def get_input_user(entity): """Similar to get_input_peer, but for InputUser's alone""" if not isinstance(entity, TLObject): _raise_cast_fail(entity, 'InputUser') if type(entity).SUBCLASS_OF_ID == 0xe669bf46: # crc32(b'InputUser') return entity if isinstance(entity, User): if entity.is_self: return InputUserSelf() else: return InputUser(entity.id, entity.access_hash) if isinstance(entity, UserEmpty): return InputUserEmpty() if isinstance(entity, UserFull): return get_input_user(entity.user) if isinstance(entity, InputPeerUser): return InputUser(entity.user_id, entity.access_hash) _raise_cast_fail(entity, 'InputUser') def get_input_document(document): """Similar to get_input_peer, but for documents""" if not isinstance(document, TLObject): _raise_cast_fail(document, 'InputDocument') if type(document).SUBCLASS_OF_ID == 0xf33fdb68: # crc32(b'InputDocument') return document if isinstance(document, Document): return InputDocument(id=document.id, access_hash=document.access_hash) if isinstance(document, DocumentEmpty): return InputDocumentEmpty() if isinstance(document, MessageMediaDocument): return get_input_document(document.document) if isinstance(document, Message): return get_input_document(document.media) _raise_cast_fail(document, 'InputDocument') def get_input_photo(photo): """Similar to get_input_peer, but for documents""" if not isinstance(photo, TLObject): _raise_cast_fail(photo, 'InputPhoto') if type(photo).SUBCLASS_OF_ID == 0x846363e0: # crc32(b'InputPhoto') return photo if isinstance(photo, Photo): return InputPhoto(id=photo.id, access_hash=photo.access_hash) if isinstance(photo, PhotoEmpty): return InputPhotoEmpty() _raise_cast_fail(photo, 'InputPhoto') def get_input_geo(geo): """Similar to get_input_peer, but for geo points""" if not isinstance(geo, TLObject): _raise_cast_fail(geo, 'InputGeoPoint') if type(geo).SUBCLASS_OF_ID == 0x430d225: # crc32(b'InputGeoPoint') return geo if isinstance(geo, GeoPoint): return InputGeoPoint(lat=geo.lat, long=geo.long) if isinstance(geo, GeoPointEmpty): return InputGeoPointEmpty() if isinstance(geo, MessageMediaGeo): return get_input_geo(geo.geo) if isinstance(geo, Message): return get_input_geo(geo.media) _raise_cast_fail(geo, 'InputGeoPoint') def get_input_media(media, user_caption=None, is_photo=False): """Similar to get_input_peer, but for media. If the media is a file location and is_photo is known to be True, it will be treated as an InputMediaUploadedPhoto. """ if not isinstance(media, TLObject): _raise_cast_fail(media, 'InputMedia') if type(media).SUBCLASS_OF_ID == 0xfaf846f4: # crc32(b'InputMedia') return media if isinstance(media, MessageMediaPhoto): return InputMediaPhoto( id=get_input_photo(media.photo), caption=media.caption if user_caption is None else user_caption, ttl_seconds=media.ttl_seconds ) if isinstance(media, MessageMediaDocument): return InputMediaDocument( id=get_input_document(media.document), caption=media.caption if user_caption is None else user_caption, ttl_seconds=media.ttl_seconds ) if isinstance(media, FileLocation): if is_photo: return InputMediaUploadedPhoto( file=media, caption=user_caption or '' ) else: return InputMediaUploadedDocument( file=media, mime_type='application/octet-stream', # unknown, assume bytes attributes=[DocumentAttributeFilename('unnamed')], caption=user_caption or '' ) if isinstance(media, MessageMediaGame): return InputMediaGame(id=media.game.id) if isinstance(media, ChatPhoto) or isinstance(media, UserProfilePhoto): if isinstance(media.photo_big, FileLocationUnavailable): return get_input_media(media.photo_small, is_photo=True) else: return get_input_media(media.photo_big, is_photo=True) if isinstance(media, MessageMediaContact): return InputMediaContact( phone_number=media.phone_number, first_name=media.first_name, last_name=media.last_name ) if isinstance(media, MessageMediaGeo): return InputMediaGeoPoint(geo_point=get_input_geo(media.geo)) if isinstance(media, MessageMediaVenue): return InputMediaVenue( geo_point=get_input_geo(media.geo), title=media.title, address=media.address, provider=media.provider, venue_id=media.venue_id ) if any(isinstance(media, t) for t in ( MessageMediaEmpty, MessageMediaUnsupported, FileLocationUnavailable, ChatPhotoEmpty, UserProfilePhotoEmpty)): return InputMediaEmpty() if isinstance(media, Message): return get_input_media(media.media) _raise_cast_fail(media, 'InputMedia') def get_peer_id(peer, add_mark=False): """Finds the ID of the given peer, and optionally converts it to the "bot api" format if 'add_mark' is set to True. """ if not isinstance(peer, TLObject): if isinstance(peer, int): return peer else: _raise_cast_fail(peer, 'int') if type(peer).SUBCLASS_OF_ID not in {0x2d45687, 0xc91c90b6}: # Not a Peer or an InputPeer, so first get its Input version peer = get_input_peer(peer) if isinstance(peer, PeerUser) or isinstance(peer, InputPeerUser): return peer.user_id else: if isinstance(peer, PeerChat) or isinstance(peer, InputPeerChat): if not add_mark: return peer.chat_id # Chats are marked by turning them into negative numbers return -peer.chat_id elif isinstance(peer, PeerChannel) or isinstance(peer, InputPeerChannel): if not add_mark: return peer.channel_id # Prepend -100 through math tricks (.to_supergroup() on Madeline) i = peer.channel_id # IDs will be strictly positive -> log works return -(i + pow(10, math.floor(math.log10(i) + 3))) _raise_cast_fail(peer, 'int') def resolve_id(marked_id): """Given a marked ID, returns the original ID and its Peer type""" if marked_id >= 0: return marked_id, PeerUser if str(marked_id).startswith('-100'): return int(str(marked_id)[4:]), PeerChannel return -marked_id, PeerChat def find_user_or_chat(peer, users, chats): """Finds the corresponding user or chat given a peer. Returns None if it was not found""" if isinstance(peer, PeerUser): peer, where = peer.user_id, users else: where = chats if isinstance(peer, PeerChat): peer = peer.chat_id elif isinstance(peer, PeerChannel): peer = peer.channel_id if isinstance(peer, int): if isinstance(where, dict): return where.get(peer) else: try: return next(x for x in where if x.id == peer) except StopIteration: pass def get_appropriated_part_size(file_size): """Gets the appropriated part size when uploading or downloading files, given an initial file size""" if file_size <= 1048576: # 1MB return 32 if file_size <= 10485760: # 10MB return 64 if file_size <= 393216000: # 375MB return 128 if file_size <= 786432000: # 750MB return 256 if file_size <= 1572864000: # 1500MB return 512 raise ValueError('File size too large')