Telethon/telethon/events/callbackquery.py
Lonami Exo 8abc7ade22 Use the new in-memory entity cache
This should avoid a disk access every time an input entity
is needed, which is very often. Another step for #1141.
2019-03-26 11:39:25 +01:00

286 lines
10 KiB
Python

import re
import struct
from .common import EventBuilder, EventCommon, name_inner_event
from .. import utils
from ..tl import types, functions
from ..tl.custom.sendergetter import SenderGetter
@name_inner_event
class CallbackQuery(EventBuilder):
"""
Represents a callback query event (when an inline button is clicked).
Note that the `chats` parameter will **not** work with normal
IDs or peers if the clicked inline button comes from a "via bot"
message. The `chats` parameter also supports checking against the
`chat_instance` which should be used for inline callbacks.
Args:
data (`bytes` | `str` | `callable`, optional):
If set, the inline button payload data must match this data.
A UTF-8 string can also be given, a regex or a callable. For
instance, to check against ``'data_1'`` and ``'data_2'`` you
can use ``re.compile(b'data_')``.
"""
def __init__(
self, chats=None, *, blacklist_chats=False, func=None, data=None):
super().__init__(chats, blacklist_chats=blacklist_chats, func=func)
if isinstance(data, bytes):
self.data = data
elif isinstance(data, str):
self.data = data.encode('utf-8')
elif not data or callable(data):
self.data = data
elif hasattr(data, 'match') and callable(data.match):
if not isinstance(getattr(data, 'pattern', b''), bytes):
data = re.compile(data.pattern.encode('utf-8'),
data.flags & (~re.UNICODE))
self.data = data.match
else:
raise TypeError('Invalid data type given')
@classmethod
def build(cls, update):
if isinstance(update, types.UpdateBotCallbackQuery):
event = cls.Event(update, update.peer, update.msg_id)
elif isinstance(update, types.UpdateInlineBotCallbackQuery):
# See https://github.com/LonamiWebs/Telethon/pull/1005
# The long message ID is actually just msg_id + peer_id
mid, pid = struct.unpack('<ii', struct.pack('<q', update.msg_id.id))
peer = types.PeerChannel(-pid) if pid < 0 else types.PeerUser(pid)
event = cls.Event(update, peer, mid)
else:
return
event._entities = update._entities
return event
def filter(self, event):
if self.chats is not None:
inside = event.query.chat_instance in self.chats
if event.chat_id:
inside |= event.chat_id in self.chats
if inside == self.blacklist_chats:
return None
if self.data:
if callable(self.data):
event.data_match = self.data(event.query.data)
if not event.data_match:
return None
elif event.query.data != self.data:
return None
return event
class Event(EventCommon, SenderGetter):
"""
Represents the event of a new callback query.
Members:
query (:tl:`UpdateBotCallbackQuery`):
The original :tl:`UpdateBotCallbackQuery`.
data_match (`obj`, optional):
The object returned by the ``data=`` parameter
when creating the event builder, if any. Similar
to ``pattern_match`` for the new message event.
"""
def __init__(self, query, peer, msg_id):
super().__init__(peer, msg_id=msg_id)
self.query = query
self.data_match = None
self._sender_id = query.user_id
self._input_sender = None
self._sender = None
self._message = None
self._answered = False
@property
def id(self):
"""
Returns the query ID. The user clicking the inline
button is the one who generated this random ID.
"""
return self.query.query_id
@property
def message_id(self):
"""
Returns the message ID to which the clicked inline button belongs.
"""
return self._message_id
@property
def data(self):
"""
Returns the data payload from the original inline button.
"""
return self.query.data
@property
def chat_instance(self):
"""
Unique identifier for the chat where the callback occurred.
Useful for high scores in games.
"""
return self.query.chat_instance
async def get_message(self):
"""
Returns the message to which the clicked inline button belongs.
"""
if self._message is not None:
return self._message
try:
chat = await self.get_input_chat() if self.is_channel else None
self._message = await self._client.get_messages(
chat, ids=self._message_id)
except ValueError:
return
return self._message
async def _refetch_sender(self):
self._sender = self._entities.get(self.sender_id)
if not self._sender:
return
self._input_sender = utils.get_input_peer(self._chat)
if not getattr(self._input_sender, 'access_hash', True):
# getattr with True to handle the InputPeerSelf() case
try:
self._input_sender = self._client._entity_cache[self._sender_id]
except KeyError:
m = await self.get_message()
if m:
self._sender = m._sender
self._input_sender = m._input_sender
async def answer(
self, message=None, cache_time=0, *, url=None, alert=False):
"""
Answers the callback query (and stops the loading circle).
Args:
message (`str`, optional):
The toast message to show feedback to the user.
cache_time (`int`, optional):
For how long this result should be cached on
the user's client. Defaults to 0 for no cache.
url (`str`, optional):
The URL to be opened in the user's client. Note that
the only valid URLs are those of games your bot has,
or alternatively a 't.me/your_bot?start=xyz' parameter.
alert (`bool`, optional):
Whether an alert (a pop-up dialog) should be used
instead of showing a toast. Defaults to ``False``.
"""
if self._answered:
return
self._answered = True
return await self._client(
functions.messages.SetBotCallbackAnswerRequest(
query_id=self.query.query_id,
cache_time=cache_time,
alert=alert,
message=message,
url=url
)
)
@property
def via_inline(self):
"""
Whether this callback was generated from an inline button sent
via an inline query or not. If the bot sent the message itself
with buttons, and one of those is clicked, this will be ``False``.
If a user sent the message coming from an inline query to the
bot, and one of those is clicked, this will be ``True``.
If it's ``True``, it's likely that the bot is **not** in the
chat, so methods like `respond` or `delete` won't work (but
`edit` will always work).
"""
return isinstance(self.query, types.UpdateInlineBotCallbackQuery)
async def respond(self, *args, **kwargs):
"""
Responds to the message (not as a reply). Shorthand for
`telethon.client.messages.MessageMethods.send_message` with
``entity`` already set.
This method also creates a task to `answer` the callback.
This method will likely fail if `via_inline` is ``True``.
"""
self._client.loop.create_task(self.answer())
return await self._client.send_message(
await self.get_input_chat(), *args, **kwargs)
async def reply(self, *args, **kwargs):
"""
Replies to the message (as a reply). Shorthand for
`telethon.client.messages.MessageMethods.send_message` with
both ``entity`` and ``reply_to`` already set.
This method also creates a task to `answer` the callback.
This method will likely fail if `via_inline` is ``True``.
"""
self._client.loop.create_task(self.answer())
kwargs['reply_to'] = self.query.msg_id
return await self._client.send_message(
await self.get_input_chat(), *args, **kwargs)
async def edit(self, *args, **kwargs):
"""
Edits the message. Shorthand for
`telethon.client.messages.MessageMethods.edit_message` with
the ``entity`` set to the correct :tl:`InputBotInlineMessageID`.
Returns ``True`` if the edit was successful.
This method also creates a task to `answer` the callback.
.. note::
This method won't respect the previous message unlike
`Message.edit <telethon.tl.custom.message.Message.edit>`,
since the message object is normally not present.
"""
self._client.loop.create_task(self.answer())
return await self._client.edit_message(
self.query.msg_id, *args, **kwargs
)
async def delete(self, *args, **kwargs):
"""
Deletes the message. Shorthand for
`telethon.client.messages.MessageMethods.delete_messages` with
``entity`` and ``message_ids`` already set.
If you need to delete more than one message at once, don't use
this `delete` method. Use a
`telethon.client.telegramclient.TelegramClient` instance directly.
This method also creates a task to `answer` the callback.
This method will likely fail if `via_inline` is ``True``.
"""
self._client.loop.create_task(self.answer())
return await self._client.delete_messages(
await self.get_input_chat(), [self.query.msg_id],
*args, **kwargs
)