Telethon/telethon/events/callbackquery.py
2018-07-11 11:22:43 +02:00

255 lines
9.1 KiB
Python

import re
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, data=None):
super().__init__(chats=chats, blacklist_chats=blacklist_chats)
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)
self.data = data.match
else:
raise TypeError('Invalid data type given')
@staticmethod
def build(update):
if isinstance(update, (types.UpdateBotCallbackQuery,
types.UpdateInlineBotCallbackQuery)):
event = CallbackQuery.Event(update)
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):
super().__init__(chat_peer=getattr(query, 'peer', None),
msg_id=query.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.query.msg_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.query.msg_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.session.get_input_entity(
self._sender_id
)
except ValueError:
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
)
)
async def respond(self, *args, **kwargs):
"""
Responds to the message (not as a reply). Shorthand for
`telethon.telegram_client.TelegramClient.send_message` with
``entity`` already set.
This method also creates a task to `answer` the callback.
"""
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.telegram_client.TelegramClient.send_message` with
both ``entity`` and ``reply_to`` already set.
This method also creates a task to `answer` the callback.
"""
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 iff it's outgoing. Shorthand for
`telethon.telegram_client.TelegramClient.edit_message` with
both ``entity`` and ``message`` already set.
Returns the edited :tl:`Message`.
This method also creates a task to `answer` the callback.
"""
self._client.loop.create_task(self.answer())
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.telegram_client.TelegramClient.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.telegram_client.TelegramClient` instance directly.
This method also creates a task to `answer` the callback.
"""
self._client.loop.create_task(self.answer())
return await self._client.delete_messages(
await self.get_input_chat(), [self.query.msg_id],
*args, **kwargs
)