mirror of
https://github.com/LonamiWebs/Telethon.git
synced 2024-09-21 03:08:49 +03:00
Remove custom EntityDatabase and use sqlite3 instead
There are still a few things to change, like cleaning up the code and actually caching the entities as a whole (currently, although the username/phone/name can be used to fetch their input version which is an improvement, their full version needs to be re-fetched. Maybe it's a good thing though?)
This commit is contained in:
Lonami Exo
parent
0a4849b150
commit
aef96f1b68
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@ -19,7 +19,6 @@ from .errors import (
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from .network import ConnectionMode
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from .tl import TLObject
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from .tl.custom import Draft, Dialog
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from .tl.entity_database import EntityDatabase
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from .tl.functions.account import (
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GetPasswordRequest
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)
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@ -144,7 +143,7 @@ class TelegramClient(TelegramBareClient):
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:return auth.SentCode:
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Information about the result of the request.
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"""
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phone = EntityDatabase.parse_phone(phone) or self._phone
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phone = utils.parse_phone(phone) or self._phone
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if not self._phone_code_hash:
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result = self(SendCodeRequest(phone, self.api_id, self.api_hash))
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@ -188,7 +187,7 @@ class TelegramClient(TelegramBareClient):
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if phone and not code:
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return self.send_code_request(phone)
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elif code:
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phone = EntityDatabase.parse_phone(phone) or self._phone
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phone = utils.parse_phone(phone) or self._phone
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phone_code_hash = phone_code_hash or self._phone_code_hash
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if not phone:
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raise ValueError(
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@ -1009,12 +1008,8 @@ class TelegramClient(TelegramBareClient):
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may be out of date.
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:return:
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"""
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if not force_fetch:
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# Try to use cache unless we want to force a fetch
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try:
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return self.session.entities[entity]
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except KeyError:
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pass
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# TODO Actually cache {id: entities} again
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# >>> if not force_fetch: reuse cached
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if isinstance(entity, int) or (
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isinstance(entity, TLObject) and
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@ -1022,36 +1017,38 @@ class TelegramClient(TelegramBareClient):
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type(entity).SUBCLASS_OF_ID in (0xc91c90b6, 0x2d45687)):
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ie = self.get_input_entity(entity)
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if isinstance(ie, InputPeerUser):
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self(GetUsersRequest([ie]))
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return self(GetUsersRequest([ie]))[0]
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elif isinstance(ie, InputPeerChat):
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self(GetChatsRequest([ie.chat_id]))
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return self(GetChatsRequest([ie.chat_id])).chats[0]
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elif isinstance(ie, InputPeerChannel):
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self(GetChannelsRequest([ie]))
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try:
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# session.process_entities has been called in the MtProtoSender
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# with the result of these calls, so they should now be on the
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# entities database.
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return self.session.entities[ie]
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except KeyError:
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pass
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return self(GetChannelsRequest([ie])).chats[0]
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if isinstance(entity, str):
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return self._get_entity_from_string(entity)
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# TODO This probably can be done better...
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invite = self._load_entity_from_string(entity)
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if invite:
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return invite
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return self.get_entity(self.session.get_input_entity(entity))
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raise ValueError(
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'Cannot turn "{}" into any entity (user or chat)'.format(entity)
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)
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def _get_entity_from_string(self, string):
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"""Gets an entity from the given string, which may be a phone or
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an username, and processes all the found entities on the session.
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def _load_entity_from_string(self, string):
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"""
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phone = EntityDatabase.parse_phone(string)
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Loads an entity from the given string, which may be a phone or
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an username, and processes all the found entities on the session.
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This method will effectively add the found users to the session
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database, so it can be queried later.
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May return a channel or chat if the string was an invite.
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"""
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phone = utils.parse_phone(string)
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if phone:
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entity = phone
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self(GetContactsRequest(0))
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else:
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entity, is_join_chat = EntityDatabase.parse_username(string)
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entity, is_join_chat = utils.parse_username(string)
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if is_join_chat:
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invite = self(CheckChatInviteRequest(entity))
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if isinstance(invite, ChatInvite):
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@ -1063,13 +1060,6 @@ class TelegramClient(TelegramBareClient):
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return invite.chat
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else:
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self(ResolveUsernameRequest(entity))
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# MtProtoSender will call .process_entities on the requests made
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try:
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return self.session.entities[entity]
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except KeyError:
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raise ValueError(
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'Could not find user with username {}'.format(entity)
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)
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def get_input_entity(self, peer):
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"""
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@ -1092,12 +1082,15 @@ class TelegramClient(TelegramBareClient):
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"""
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try:
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# First try to get the entity from cache, otherwise figure it out
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return self.session.entities.get_input_entity(peer)
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return self.session.get_input_entity(peer)
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except KeyError:
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pass
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if isinstance(peer, str):
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return utils.get_input_peer(self._get_entity_from_string(peer))
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invite = self._load_entity_from_string(peer)
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if invite:
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return utils.get_input_peer(invite)
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return self.session.get_input_entity(peer)
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is_peer = False
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if isinstance(peer, int):
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@ -1130,7 +1123,7 @@ class TelegramClient(TelegramBareClient):
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exclude_pinned=True
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))
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try:
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return self.session.entities.get_input_entity(peer)
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return self.session.get_input_entity(peer)
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except KeyError:
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pass
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@ -1,252 +0,0 @@
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import re
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from threading import Lock
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from ..tl import TLObject
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from ..tl.types import (
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User, Chat, Channel, PeerUser, PeerChat, PeerChannel,
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InputPeerUser, InputPeerChat, InputPeerChannel
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)
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from .. import utils # Keep this line the last to maybe fix #357
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USERNAME_RE = re.compile(
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r'@|(?:https?://)?(?:telegram\.(?:me|dog)|t\.me)/(joinchat/)?'
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)
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class EntityDatabase:
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def __init__(self, input_list=None, enabled=True, enabled_full=True):
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"""Creates a new entity database with an initial load of "Input"
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entities, if any.
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If 'enabled', input entities will be saved. The whole entity
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will be saved if both 'enabled' and 'enabled_full' are True.
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"""
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self.enabled = enabled
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self.enabled_full = enabled_full
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self._lock = Lock()
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self._entities = {} # marked_id: user|chat|channel
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if input_list:
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# TODO For compatibility reasons some sessions were saved with
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# 'access_hash': null in the JSON session file. Drop these, as
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# it means we don't have access to such InputPeers. Issue #354.
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self._input_entities = {
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k: v for k, v in input_list if v is not None
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}
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else:
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self._input_entities = {} # marked_id: hash
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# TODO Allow disabling some extra mappings
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self._username_id = {} # username: marked_id
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self._phone_id = {} # phone: marked_id
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def process(self, tlobject):
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"""Processes all the found entities on the given TLObject,
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unless .enabled is False.
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Returns True if new input entities were added.
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"""
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if not self.enabled:
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return False
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# Save all input entities we know of
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if not isinstance(tlobject, TLObject) and hasattr(tlobject, '__iter__'):
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# This may be a list of users already for instance
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return self.expand(tlobject)
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entities = []
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if hasattr(tlobject, 'chats') and hasattr(tlobject.chats, '__iter__'):
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entities.extend(tlobject.chats)
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if hasattr(tlobject, 'users') and hasattr(tlobject.users, '__iter__'):
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entities.extend(tlobject.users)
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return self.expand(entities)
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def expand(self, entities):
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"""Adds new input entities to the local database unconditionally.
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Unknown types will be ignored.
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"""
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if not entities or not self.enabled:
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return False
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new = [] # Array of entities (User, Chat, or Channel)
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new_input = {} # Dictionary of {entity_marked_id: access_hash}
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for e in entities:
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if not isinstance(e, TLObject):
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continue
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try:
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p = utils.get_input_peer(e, allow_self=False)
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marked_id = utils.get_peer_id(p, add_mark=True)
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has_hash = False
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if isinstance(p, InputPeerChat):
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# Chats don't have a hash
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new_input[marked_id] = 0
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has_hash = True
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elif p.access_hash:
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# Some users and channels seem to be returned without
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# an 'access_hash', meaning Telegram doesn't want you
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# to access them. This is the reason behind ensuring
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# that the 'access_hash' is non-zero. See issue #354.
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new_input[marked_id] = p.access_hash
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has_hash = True
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if self.enabled_full and has_hash:
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if isinstance(e, (User, Chat, Channel)):
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new.append(e)
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except ValueError:
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pass
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with self._lock:
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before = len(self._input_entities)
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self._input_entities.update(new_input)
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for e in new:
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self._add_full_entity(e)
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return len(self._input_entities) != before
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def _add_full_entity(self, entity):
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"""Adds a "full" entity (User, Chat or Channel, not "Input*"),
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despite the value of self.enabled and self.enabled_full.
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Not to be confused with UserFull, ChatFull, or ChannelFull,
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"full" means simply not "Input*".
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"""
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marked_id = utils.get_peer_id(
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utils.get_input_peer(entity, allow_self=False), add_mark=True
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)
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try:
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old_entity = self._entities[marked_id]
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old_entity.__dict__.update(entity.__dict__) # Keep old references
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# Update must delete old username and phone
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username = getattr(old_entity, 'username', None)
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if username:
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del self._username_id[username.lower()]
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phone = getattr(old_entity, 'phone', None)
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if phone:
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del self._phone_id[phone]
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except KeyError:
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# Add new entity
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self._entities[marked_id] = entity
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# Always update username or phone if any
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username = getattr(entity, 'username', None)
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if username:
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self._username_id[username.lower()] = marked_id
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phone = getattr(entity, 'phone', None)
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if phone:
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self._phone_id[phone] = marked_id
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def _parse_key(self, key):
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"""Parses the given string, integer or TLObject key into a
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marked user ID ready for use on self._entities.
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If a callable key is given, the entity will be passed to the
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function, and if it returns a true-like value, the marked ID
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for such entity will be returned.
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Raises ValueError if it cannot be parsed.
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"""
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if isinstance(key, str):
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phone = EntityDatabase.parse_phone(key)
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try:
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if phone:
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return self._phone_id[phone]
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else:
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username, _ = EntityDatabase.parse_username(key)
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return self._username_id[username.lower()]
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except KeyError as e:
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raise ValueError() from e
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if isinstance(key, int):
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return key # normal IDs are assumed users
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if isinstance(key, TLObject):
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return utils.get_peer_id(key, add_mark=True)
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if callable(key):
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for k, v in self._entities.items():
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if key(v):
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return k
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raise ValueError()
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def __getitem__(self, key):
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"""See the ._parse_key() docstring for possible values of the key"""
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try:
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return self._entities[self._parse_key(key)]
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except (ValueError, KeyError) as e:
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raise KeyError(key) from e
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def __delitem__(self, key):
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try:
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old = self._entities.pop(self._parse_key(key))
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# Try removing the username and phone (if pop didn't fail),
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# since the entity may have no username or phone, just ignore
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# errors. It should be there if we popped the entity correctly.
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try:
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del self._username_id[getattr(old, 'username', None)]
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except KeyError:
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pass
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try:
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del self._phone_id[getattr(old, 'phone', None)]
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except KeyError:
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pass
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except (ValueError, KeyError) as e:
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raise KeyError(key) from e
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@staticmethod
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def parse_phone(phone):
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"""Parses the given phone, or returns None if it's invalid"""
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if isinstance(phone, int):
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return str(phone)
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else:
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phone = re.sub(r'[+()\s-]', '', str(phone))
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if phone.isdigit():
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return phone
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@staticmethod
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def parse_username(username):
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"""Parses the given username or channel access hash, given
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a string, username or URL. Returns a tuple consisting of
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both the stripped username and whether it is a joinchat/ hash.
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"""
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username = username.strip()
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m = USERNAME_RE.match(username)
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if m:
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return username[m.end():], bool(m.group(1))
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else:
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return username, False
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def get_input_entity(self, peer):
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try:
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i = utils.get_peer_id(peer, add_mark=True)
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h = self._input_entities[i] # we store the IDs marked
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i, k = utils.resolve_id(i) # removes the mark and returns kind
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if k == PeerUser:
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return InputPeerUser(i, h)
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elif k == PeerChat:
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return InputPeerChat(i)
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elif k == PeerChannel:
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return InputPeerChannel(i, h)
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except ValueError as e:
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raise KeyError(peer) from e
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raise KeyError(peer)
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def get_input_list(self):
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return list(self._input_entities.items())
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def clear(self, target=None):
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if target is None:
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self._entities.clear()
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else:
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del self[target]
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@ -8,8 +8,12 @@ from base64 import b64decode
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from os.path import isfile as file_exists
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from threading import Lock
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from .entity_database import EntityDatabase
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from .. import helpers
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from .. import utils, helpers
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from ..tl import TLObject
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from ..tl.types import (
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PeerUser, PeerChat, PeerChannel,
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InputPeerUser, InputPeerChat, InputPeerChannel
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)
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EXTENSION = '.session'
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CURRENT_VERSION = 1 # database version
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@ -75,10 +79,9 @@ class Session:
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self._auth_key = None
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self._layer = 0
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self._salt = 0 # Signed long
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self.entities = EntityDatabase() # Known and cached entities
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# Migrating from .json -> SQL
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self._check_migrate_json()
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entities = self._check_migrate_json()
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self._conn = sqlite3.connect(self.filename, check_same_thread=False)
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c = self._conn.cursor()
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@ -114,14 +117,20 @@ class Session:
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)
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c.execute(
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"""create table entities (
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id integer,
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hash integer,
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id integer primary key,
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hash integer not null,
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username text,
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phone integer,
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name text
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)"""
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)
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c.execute("insert into version values (1)")
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# Migrating from JSON -> new table and may have entities
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if entities:
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c.executemany(
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'insert or replace into entities values (?,?,?,?,?)',
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entities
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)
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c.close()
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self.save()
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@ -130,6 +139,8 @@ class Session:
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try:
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with open(self.filename, encoding='utf-8') as f:
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data = json.load(f)
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self.delete() # Delete JSON file to create database
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self._port = data.get('port', self._port)
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self._salt = data.get('salt', self._salt)
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# Keep while migrating from unsigned to signed salt
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@ -146,10 +157,12 @@ class Session:
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key = b64decode(data['auth_key_data'])
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self._auth_key = AuthKey(data=key)
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self.entities = EntityDatabase(data.get('entities', []))
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self.delete() # Delete JSON file to create database
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rows = []
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for p_id, p_hash in data.get('entities', []):
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rows.append((p_id, p_hash, None, None, None))
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return rows
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except (UnicodeDecodeError, json.decoder.JSONDecodeError):
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pass
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return [] # No entities
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def _upgrade_database(self, old):
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pass
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@ -275,9 +288,103 @@ class Session:
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correct = correct_msg_id >> 32
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self.time_offset = correct - now
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def process_entities(self, tlobject):
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# Entity processing
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def process_entities(self, tlo):
|
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"""Processes all the found entities on the given TLObject,
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unless .enabled is False.
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|
||||
Returns True if new input entities were added.
|
||||
"""
|
||||
if not self.save_entities:
|
||||
return
|
||||
|
||||
if not isinstance(tlo, TLObject) and hasattr(tlo, '__iter__'):
|
||||
# This may be a list of users already for instance
|
||||
entities = tlo
|
||||
else:
|
||||
entities = []
|
||||
if hasattr(tlo, 'chats') and hasattr(tlo.chats, '__iter__'):
|
||||
entities.extend(tlo.chats)
|
||||
if hasattr(tlo, 'users') and hasattr(tlo.users, '__iter__'):
|
||||
entities.extend(tlo.users)
|
||||
if not entities:
|
||||
return
|
||||
|
||||
rows = [] # Rows to add (id, hash, username, phone, name)
|
||||
for e in entities:
|
||||
if not isinstance(e, TLObject):
|
||||
continue
|
||||
try:
|
||||
if self.entities.process(tlobject):
|
||||
self.save() # Save if any new entities got added
|
||||
except:
|
||||
p = utils.get_input_peer(e, allow_self=False)
|
||||
marked_id = utils.get_peer_id(p, add_mark=True)
|
||||
|
||||
p_hash = None
|
||||
if isinstance(p, InputPeerChat):
|
||||
p_hash = 0
|
||||
elif 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.
|
||||
p_hash = p.access_hash
|
||||
|
||||
if p_hash is not None:
|
||||
username = getattr(e, 'username', None)
|
||||
phone = getattr(e, 'phone', None)
|
||||
name = utils.get_display_name(e) or None
|
||||
rows.append((marked_id, p_hash, username, phone, name))
|
||||
except ValueError:
|
||||
pass
|
||||
if not rows:
|
||||
return
|
||||
|
||||
with self._db_lock:
|
||||
self._conn.executemany(
|
||||
'insert or replace into entities values (?,?,?,?,?)', rows
|
||||
)
|
||||
self.save()
|
||||
|
||||
def get_input_entity(self, key):
|
||||
"""Parses the given string, integer or TLObject key into a
|
||||
marked entity ID, which is then used to fetch the hash
|
||||
from the database.
|
||||
|
||||
If a callable key is given, every row will be fetched,
|
||||
and passed as a tuple to a function, that should return
|
||||
a true-like value when the desired row is found.
|
||||
|
||||
Raises ValueError if it cannot be found.
|
||||
"""
|
||||
c = self._conn.cursor()
|
||||
if isinstance(key, str):
|
||||
phone = utils.parse_phone(key)
|
||||
if phone:
|
||||
c.execute('select id, hash from entities where phone=?',
|
||||
(phone,))
|
||||
else:
|
||||
username, _ = utils.parse_username(key)
|
||||
c.execute('select id, hash from entities where username=?',
|
||||
(username,))
|
||||
|
||||
if isinstance(key, TLObject):
|
||||
# crc32(b'InputPeer') and crc32(b'Peer')
|
||||
if type(key).SUBCLASS_OF_ID == 0xc91c90b6:
|
||||
return key
|
||||
key = utils.get_peer_id(key, add_mark=True)
|
||||
|
||||
if isinstance(key, int):
|
||||
c.execute('select id, hash from entities where id=?', (key,))
|
||||
|
||||
result = c.fetchone()
|
||||
if result:
|
||||
i, h = result # unpack resulting tuple
|
||||
i, k = utils.resolve_id(i) # removes the mark and returns kind
|
||||
if k == PeerUser:
|
||||
return InputPeerUser(i, h)
|
||||
elif k == PeerChat:
|
||||
return InputPeerChat(i)
|
||||
elif k == PeerChannel:
|
||||
return InputPeerChannel(i, h)
|
||||
else:
|
||||
raise ValueError('Could not find input entity with key ', key)
|
||||
|
|
|
|||
|
|
@ -5,6 +5,8 @@ to convert between an entity like an User, Chat, etc. into its Input version)
|
|||
import math
|
||||
from mimetypes import add_type, guess_extension
|
||||
|
||||
import re
|
||||
|
||||
from .tl import TLObject
|
||||
from .tl.types import (
|
||||
Channel, ChannelForbidden, Chat, ChatEmpty, ChatForbidden, ChatFull,
|
||||
|
|
@ -24,6 +26,11 @@ from .tl.types import (
|
|||
)
|
||||
|
||||
|
||||
USERNAME_RE = re.compile(
|
||||
r'@|(?:https?://)?(?:telegram\.(?:me|dog)|t\.me)/(joinchat/)?'
|
||||
)
|
||||
|
||||
|
||||
def get_display_name(entity):
|
||||
"""Gets the input peer for the given "entity" (user, chat or channel)
|
||||
Returns None if it was not found"""
|
||||
|
|
@ -305,6 +312,29 @@ def get_input_media(media, user_caption=None, is_photo=False):
|
|||
_raise_cast_fail(media, 'InputMedia')
|
||||
|
||||
|
||||
def parse_phone(phone):
|
||||
"""Parses the given phone, or returns None if it's invalid"""
|
||||
if isinstance(phone, int):
|
||||
return str(phone)
|
||||
else:
|
||||
phone = re.sub(r'[+()\s-]', '', str(phone))
|
||||
if phone.isdigit():
|
||||
return phone
|
||||
|
||||
|
||||
def parse_username(username):
|
||||
"""Parses the given username or channel access hash, given
|
||||
a string, username or URL. Returns a tuple consisting of
|
||||
both the stripped username and whether it is a joinchat/ hash.
|
||||
"""
|
||||
username = username.strip()
|
||||
m = USERNAME_RE.match(username)
|
||||
if m:
|
||||
return username[m.end():], bool(m.group(1))
|
||||
else:
|
||||
return username, False
|
||||
|
||||
|
||||
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.
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user