from enum import Enum from .abstract import Session from .. import utils from ..tl import TLObject from ..tl.types import ( PeerUser, PeerChat, PeerChannel, InputPeerUser, InputPeerChat, InputPeerChannel, InputPhoto, InputDocument ) class _SentFileType(Enum): DOCUMENT = 0 PHOTO = 1 @staticmethod def from_type(cls): if cls == InputDocument: return _SentFileType.DOCUMENT elif cls == InputPhoto: return _SentFileType.PHOTO else: raise ValueError('The cls must be either InputDocument/InputPhoto') class MemorySession(Session): def __init__(self): super().__init__() self._dc_id = 0 self._server_address = None self._port = None self._auth_key = None self._takeout_id = None self._files = {} self._entities = set() self._update_states = {} def set_dc(self, dc_id, server_address, port): self._dc_id = dc_id or 0 self._server_address = server_address self._port = port @property def dc_id(self): return self._dc_id @property def server_address(self): return self._server_address @property def port(self): return self._port @property def auth_key(self): return self._auth_key @auth_key.setter def auth_key(self, value): self._auth_key = value @property def takeout_id(self): return self._takeout_id @takeout_id.setter def takeout_id(self, value): self._takeout_id = value def get_update_state(self, entity_id): return self._update_states.get(entity_id, None) def set_update_state(self, entity_id, state): self._update_states[entity_id] = state def close(self): pass def save(self): pass def delete(self): pass def _entity_values_to_row(self, id, hash, username, phone, name): # While this is a simple implementation it might be overrode by, # other classes so they don't need to implement the plural form # of the method. Don't remove. return id, hash, username, phone, name def _entity_to_row(self, e): if not isinstance(e, TLObject): return try: p = utils.get_input_peer(e, allow_self=False) marked_id = utils.get_peer_id(p) except TypeError: return if isinstance(p, (InputPeerUser, InputPeerChannel)): if not p.access_hash: # Some users and channels seem to be returned without # an 'access_hash', meaning Telegram doesn't want you # to access them. This is the reason behind ensuring # that the 'access_hash' is non-zero. See issue #354. # Note that this checks for zero or None, see #392. return else: p_hash = p.access_hash elif isinstance(p, InputPeerChat): p_hash = 0 else: return username = getattr(e, 'username', None) or None if username is not None: username = username.lower() phone = getattr(e, 'phone', None) name = utils.get_display_name(e) or None return self._entity_values_to_row( marked_id, p_hash, username, phone, name ) def _entities_to_rows(self, tlo): if not isinstance(tlo, TLObject) and utils.is_list_like(tlo): # This may be a list of users already for instance entities = tlo else: entities = [] if hasattr(tlo, 'user'): entities.append(tlo.user) if hasattr(tlo, 'chats') and utils.is_list_like(tlo.chats): entities.extend(tlo.chats) if hasattr(tlo, 'users') and utils.is_list_like(tlo.users): entities.extend(tlo.users) rows = [] # Rows to add (id, hash, username, phone, name) for e in entities: row = self._entity_to_row(e) if row: rows.append(row) return rows def process_entities(self, tlo): self._entities |= set(self._entities_to_rows(tlo)) def get_entity_rows_by_phone(self, phone): try: return next((id, hash) for id, hash, _, found_phone, _ in self._entities if found_phone == phone) except StopIteration: pass def get_entity_rows_by_username(self, username): try: return next((id, hash) for id, hash, found_username, _, _ in self._entities if found_username == username) except StopIteration: pass def get_entity_rows_by_name(self, name): try: return next((id, hash) for id, hash, _, _, found_name in self._entities if found_name == name) except StopIteration: pass def get_entity_rows_by_id(self, id, exact=True): try: if exact: return next((id, hash) for found_id, hash, _, _, _ in self._entities if found_id == id) else: ids = ( utils.get_peer_id(PeerUser(id)), utils.get_peer_id(PeerChat(id)), utils.get_peer_id(PeerChannel(id)) ) return next((id, hash) for found_id, hash, _, _, _ in self._entities if found_id in ids) except StopIteration: pass def get_input_entity(self, key): try: if key.SUBCLASS_OF_ID in (0xc91c90b6, 0xe669bf46, 0x40f202fd): # hex(crc32(b'InputPeer', b'InputUser' and b'InputChannel')) # We already have an Input version, so nothing else required return key # Try to early return if this key can be casted as input peer return utils.get_input_peer(key) except (AttributeError, TypeError): # Not a TLObject or can't be cast into InputPeer if isinstance(key, TLObject): key = utils.get_peer_id(key) exact = True else: exact = not isinstance(key, int) or key < 0 result = None if isinstance(key, str): phone = utils.parse_phone(key) if phone: result = self.get_entity_rows_by_phone(phone) else: username, invite = utils.parse_username(key) if username and not invite: result = self.get_entity_rows_by_username(username) else: tup = utils.resolve_invite_link(key)[1] if tup: result = self.get_entity_rows_by_id(tup, exact=False) elif isinstance(key, int): result = self.get_entity_rows_by_id(key, exact) if not result and isinstance(key, str): result = self.get_entity_rows_by_name(key) if result: entity_id, entity_hash = result # unpack resulting tuple entity_id, kind = utils.resolve_id(entity_id) # removes the mark and returns type of entity if kind == PeerUser: return InputPeerUser(entity_id, entity_hash) elif kind == PeerChat: return InputPeerChat(entity_id) elif kind == PeerChannel: return InputPeerChannel(entity_id, entity_hash) else: raise ValueError('Could not find input entity with key ', key) def cache_file(self, md5_digest, file_size, instance): if not isinstance(instance, (InputDocument, InputPhoto)): raise TypeError('Cannot cache %s instance' % type(instance)) key = (md5_digest, file_size, _SentFileType.from_type(type(instance))) value = (instance.id, instance.access_hash) self._files[key] = value def get_file(self, md5_digest, file_size, cls): key = (md5_digest, file_size, _SentFileType.from_type(cls)) try: return cls(*self._files[key]) except KeyError: return None