Telethon/telethon/_events/callbackquery.py
2022-02-17 12:40:38 +01:00

268 lines
8.8 KiB
Python

import re
import struct
import asyncio
import functools
from .base import EventBuilder
from .._misc import utils
from .. import _tl
from ..types import _custom
def auto_answer(func):
@functools.wraps(func)
async def wrapped(self, *args, **kwargs):
if self._answered:
return await func(*args, **kwargs)
else:
return (await asyncio.gather(
self._answer(),
func(*args, **kwargs),
))[1]
return wrapped
class CallbackQuery(EventBuilder, _custom.chatgetter.ChatGetter, _custom.sendergetter.SenderGetter):
"""
Occurs whenever you sign in as a bot and a user
clicks one of the inline buttons on your messages.
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.
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.
pattern_match (`obj`, optional):
Alias for ``data_match``.
Example
.. code-block:: python
from telethon import events, Button
# Handle all callback queries and check data inside the handler
@client.on(events.CallbackQuery)
async def handler(event):
if event.data == b'yes':
await event.answer('Correct answer!')
# Handle only callback queries with data being b'no'
@client.on(events.CallbackQuery(data=b'no'))
async def handler(event):
# Pop-up message with alert
await event.answer('Wrong answer!', alert=True)
# Send a message with buttons users can click
async def main():
await client.send_message(user, 'Yes or no?', buttons=[
Button.inline('Yes!', b'yes'),
Button.inline('Nope', b'no')
])
"""
@classmethod
def _build(cls, client, update, entities):
query = update
if isinstance(update, _tl.UpdateBotCallbackQuery):
peer = update.peer
msg_id = update.msg_id
elif isinstance(update, _tl.UpdateInlineBotCallbackQuery):
# See https://github.com/LonamiWebs/Telethon/pull/1005
# The long message ID is actually just msg_id + peer_id
msg_id, pid = struct.unpack('<ii', struct.pack('<q', update.msg_id.id))
peer = _tl.PeerChannel(-pid) if pid < 0 else _tl.PeerUser(pid)
else:
return None
self = cls.__new__(cls)
self._client = client
self._sender = entities.get(_tl.PeerUser(query.user_id))
self._chat = entities.get(peer)
self.query = query
self.data_match = None
self.pattern_match = None
self._message = None
self._answered = False
return self
@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:
self._message = await self._client.get_messages(self.chat, ids=self._message_id)
except ValueError:
return
return self._message
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
res = await self._client(_tl.fn.messages.SetBotCallbackAnswer(
query_id=self.query.query_id,
cache_time=cache_time,
alert=alert,
message=message,
url=url,
))
self._answered = True
return res
@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, _tl.UpdateInlineBotCallbackQuery)
@auto_answer
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 will also `answer` the callback if necessary.
This method will likely fail if `via_inline` is `True`.
"""
return await self._client.send_message(
await self.get_input_chat(), *args, **kwargs)
@auto_answer
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 will also `answer` the callback if necessary.
This method will likely fail if `via_inline` is `True`.
"""
kwargs['reply_to'] = self.query.msg_id
return await self._client.send_message(
await self.get_input_chat(), *args, **kwargs)
@auto_answer
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 will also `answer` the callback if necessary.
.. 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.
"""
if isinstance(self.query.msg_id, _tl.InputBotInlineMessageID):
return await self._client.edit_message(
None, self.query.msg_id, *args, **kwargs
)
else:
return await self._client.edit_message(
await self.get_input_chat(), self.query.msg_id,
*args, **kwargs
)
@auto_answer
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 will also `answer` the callback if necessary.
This method will likely fail if `via_inline` is `True`.
"""
return await self._client.delete_messages(
await self.get_input_chat(), [self.query.msg_id],
*args, **kwargs
)