Telethon/telethon/events/callbackquery.py

345 lines
13 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):
"""
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.
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_')``.
pattern (`bytes`, `str`, `callable`, `Pattern`, optional):
If set, only buttons with payload matching this pattern will be handled.
You can specify a regex-like string which will be matched
against the payload data, a callable function that returns `True`
if a the payload data is acceptable, or a compiled regex pattern.
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')
])
"""
def __init__(
self, chats=None, *, blacklist_chats=False, func=None, data=None, pattern=None):
super().__init__(chats, blacklist_chats=blacklist_chats, func=func)
if data and pattern:
raise ValueError("Only pass either data or pattern not both.")
if isinstance(data, str):
data = data.encode('utf-8')
if isinstance(pattern, str):
pattern = pattern.encode('utf-8')
match = data if data else pattern
if isinstance(match, bytes):
self.match = data if data else re.compile(pattern).match
elif not match or callable(match):
self.match = match
elif hasattr(match, 'match') and callable(match.match):
if not isinstance(getattr(match, 'pattern', b''), bytes):
match = re.compile(match.pattern.encode('utf-8'),
match.flags & (~re.UNICODE))
self.match = match.match
else:
raise TypeError('Invalid data or pattern type given')
self._no_check = all(x is None for x in (
self.chats, self.func, self.match,
))
@classmethod
def build(cls, update, others=None, self_id=None):
if isinstance(update, types.UpdateBotCallbackQuery):
return 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)
return cls.Event(update, peer, mid)
def filter(self, event):
# We can't call super().filter(...) because it ignores chat_instance
if self._no_check:
return 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
if self.match:
if callable(self.match):
event.data_match = event.pattern_match = self.match(event.query.data)
if not event.data_match:
return
elif event.query.data != self.match:
return
if self.func:
# Return the result of func directly as it may need to be awaited
return self.func(event)
return True
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.
pattern_match (`obj`, optional):
Alias for ``data_match``.
"""
def __init__(self, query, peer, msg_id):
super().__init__(peer, msg_id=msg_id)
SenderGetter.__init__(self, query.user_id)
self.query = query
self.data_match = None
self.pattern_match = None
self._message = None
self._answered = False
def _set_client(self, client):
super()._set_client(client)
self._sender, self._input_sender = utils._get_entity_pair(
self.sender_id, self._entities, client._mb_entity_cache)
@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._mb_entity_cache.get(
utils.resolve_id(self._sender_id)[0])._as_input_peer()
except AttributeError:
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` or :tl:`InputBotInlineMessageID64`.
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())
if isinstance(self.query.msg_id, (types.InputBotInlineMessageID, types.InputBotInlineMessageID64)):
return await self._client.edit_message(
self.query.msg_id, *args, **kwargs
)
else:
return await self._client.edit_message(
await self.get_input_chat(), 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
)