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999 lines (602 loc) · 24.4 KB
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# Hydrogram - Telegram MTProto API Client Library for Python
# Copyright (C) 2017-2023 Dan <https://github.com/delivrance>
# Copyright (C) 2023-present Hydrogram <https://hydrogram.org>
#
# This file is part of Hydrogram.
#
# Hydrogram is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Hydrogram is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Hydrogram. If not, see <http://www.gnu.org/licenses/>.
from __future__ import annotations
import inspect
import re
from re import Pattern
from typing import Callable
import hydrogram
from hydrogram import enums
from hydrogram.types import (
CallbackQuery,
InlineKeyboardMarkup,
InlineQuery,
Message,
ReplyKeyboardMarkup,
Update,
)
class Filter:
async def __call__(self, client: hydrogram.Client, update: Update):
raise NotImplementedError
def __invert__(self):
return InvertFilter(self)
def __and__(self, other):
return AndFilter(self, other)
def __or__(self, other):
return OrFilter(self, other)
class InvertFilter(Filter):
def __init__(self, base):
self.base = base
async def __call__(self, client: hydrogram.Client, update: Update):
if inspect.iscoroutinefunction(self.base.__call__):
x = await self.base(client, update)
else:
x = await client.loop.run_in_executor(client.executor, self.base, client, update)
return not x
class AndFilter(Filter):
def __init__(self, base, other):
self.base = base
self.other = other
async def __call__(self, client: hydrogram.Client, update: Update):
if inspect.iscoroutinefunction(self.base.__call__):
x = await self.base(client, update)
else:
x = await client.loop.run_in_executor(client.executor, self.base, client, update)
# short circuit
if not x:
return False
if inspect.iscoroutinefunction(self.other.__call__):
y = await self.other(client, update)
else:
y = await client.loop.run_in_executor(client.executor, self.other, client, update)
return x and y
class OrFilter(Filter):
def __init__(self, base, other):
self.base = base
self.other = other
async def __call__(self, client: hydrogram.Client, update: Update):
if inspect.iscoroutinefunction(self.base.__call__):
x = await self.base(client, update)
else:
x = await client.loop.run_in_executor(client.executor, self.base, client, update)
# short circuit
if x:
return True
if inspect.iscoroutinefunction(self.other.__call__):
y = await self.other(client, update)
else:
y = await client.loop.run_in_executor(client.executor, self.other, client, update)
return x or y
CUSTOM_FILTER_NAME = "CustomFilter"
def create(func: Callable, name: str | None = None, **kwargs) -> Filter:
"""Easily create a custom filter.
Custom filters give you extra control over which updates are allowed or not to be processed by your handlers.
Parameters:
func (``Callable``):
A function that accepts three positional arguments *(filter, client, update)* and returns a boolean: True if the
update should be handled, False otherwise.
The *filter* argument refers to the filter itself and can be used to access keyword arguments (read below).
The *client* argument refers to the :obj:`~hydrogram.Client` that received the update.
The *update* argument type will vary depending on which `Handler <handlers>`_ is coming from.
For example, in a :obj:`~hydrogram.handlers.MessageHandler` the *update* argument will be a :obj:`~hydrogram.types.Message`; in a :obj:`~hydrogram.handlers.CallbackQueryHandler` the *update* will be a :obj:`~hydrogram.types.CallbackQuery`.
Your function body can then access the incoming update attributes and decide whether to allow it or not.
name (``str``, *optional*):
Your filter's name. Can be anything you like.
Defaults to "CustomFilter".
**kwargs (``any``, *optional*):
Any keyword argument you would like to pass. Useful when creating parameterized custom filters, such as
:meth:`~hydrogram.filters.command` or :meth:`~hydrogram.filters.regex`.
"""
return type(
name or func.__name__ or CUSTOM_FILTER_NAME,
(Filter,),
{"__call__": func, **kwargs},
)()
# region all_filter
def all_filter(_, __, ___):
return True
all = create(all_filter)
"""Filter all messages."""
# endregion
# region me_filter
def me_filter(_, __, m: Message):
return bool(m.from_user.is_self if m.from_user else getattr(m, "outgoing", False))
me = create(me_filter)
"""Filter messages generated by you yourself."""
# endregion
# region bot_filter
def bot_filter(_, __, m: Message):
return bool(m.from_user and m.from_user.is_bot)
bot = create(bot_filter)
"""Filter messages coming from bots."""
# endregion
# region incoming_filter
def incoming_filter(_, __, m: Message):
return not m.outgoing
incoming = create(incoming_filter)
"""Filter incoming messages. Messages sent to your own chat (Saved Messages) are also recognised as incoming."""
# endregion
# region outgoing_filter
def outgoing_filter(_, __, m: Message):
return m.outgoing
outgoing = create(outgoing_filter)
"""Filter outgoing messages. Messages sent to your own chat (Saved Messages) are not recognized as outgoing."""
# endregion
# region text_filter
def text_filter(_, __, m: Message):
return bool(m.text)
text = create(text_filter)
"""Filter text messages."""
# endregion
# region reply_filter
def reply_filter(_, __, m: Message):
return bool(m.reply_to_message_id)
reply = create(reply_filter)
"""Filter messages that are replies to other messages."""
# endregion
# region forwarded_filter
def forwarded_filter(_, __, m: Message):
return bool(m.forward_date)
forwarded = create(forwarded_filter)
"""Filter messages that are forwarded."""
# endregion
# region caption_filter
def caption_filter(_, __, m: Message):
return bool(m.caption)
caption = create(caption_filter)
"""Filter media messages that contain captions."""
# endregion
# region audio_filter
def audio_filter(_, __, m: Message):
return bool(m.audio)
audio = create(audio_filter)
"""Filter messages that contain :obj:`~hydrogram.types.Audio` objects."""
# endregion
# region document_filter
def document_filter(_, __, m: Message):
return bool(m.document)
document = create(document_filter)
"""Filter messages that contain :obj:`~hydrogram.types.Document` objects."""
# endregion
# region photo_filter
def photo_filter(_, __, m: Message):
return bool(m.photo)
photo = create(photo_filter)
"""Filter messages that contain :obj:`~hydrogram.types.Photo` objects."""
# endregion
# region sticker_filter
def sticker_filter(_, __, m: Message):
return bool(m.sticker)
sticker = create(sticker_filter)
"""Filter messages that contain :obj:`~hydrogram.types.Sticker` objects."""
# endregion
# region animation_filter
def animation_filter(_, __, m: Message):
return bool(m.animation)
animation = create(animation_filter)
"""Filter messages that contain :obj:`~hydrogram.types.Animation` objects."""
# endregion
# region game_filter
def game_filter(_, __, m: Message):
return bool(m.game)
game = create(game_filter)
"""Filter messages that contain :obj:`~hydrogram.types.Game` objects."""
# endregion
# region video_filter
def video_filter(_, __, m: Message):
return bool(m.video)
video = create(video_filter)
"""Filter messages that contain :obj:`~hydrogram.types.Video` objects."""
# endregion
# region media_group_filter
def media_group_filter(_, __, m: Message):
return bool(m.media_group_id)
media_group = create(media_group_filter)
"""Filter messages containing photos or videos being part of an album."""
# endregion
# region voice_filter
def voice_filter(_, __, m: Message):
return bool(m.voice)
voice = create(voice_filter)
"""Filter messages that contain :obj:`~hydrogram.types.Voice` note objects."""
# endregion
# region video_note_filter
def video_note_filter(_, __, m: Message):
return bool(m.video_note)
video_note = create(video_note_filter)
"""Filter messages that contain :obj:`~hydrogram.types.VideoNote` objects."""
# endregion
# region contact_filter
def contact_filter(_, __, m: Message):
return bool(m.contact)
contact = create(contact_filter)
"""Filter messages that contain :obj:`~hydrogram.types.Contact` objects."""
# endregion
# region location_filter
def location_filter(_, __, m: Message):
return bool(m.location)
location = create(location_filter)
"""Filter messages that contain :obj:`~hydrogram.types.Location` objects."""
# endregion
# region venue_filter
def venue_filter(_, __, m: Message):
return bool(m.venue)
venue = create(venue_filter)
"""Filter messages that contain :obj:`~hydrogram.types.Venue` objects."""
# endregion
# region web_page_filter
def web_page_filter(_, __, m: Message):
return bool(m.web_page)
web_page = create(web_page_filter)
"""Filter messages sent with a webpage preview."""
# endregion
# region poll_filter
def poll_filter(_, __, m: Message):
return bool(m.poll)
poll = create(poll_filter)
"""Filter messages that contain :obj:`~hydrogram.types.Poll` objects."""
# endregion
# region dice_filter
def dice_filter(_, __, m: Message):
return bool(m.dice)
dice = create(dice_filter)
"""Filter messages that contain :obj:`~hydrogram.types.Dice` objects."""
# endregion
# region media_spoiler
def media_spoiler_filter(_, __, m: Message):
return bool(m.has_media_spoiler)
media_spoiler = create(media_spoiler_filter)
"""Filter media messages that contain a spoiler."""
# endregion
# region private_filter
def private_filter(_, __, m: CallbackQuery | Message):
if isinstance(m, Message):
value = m.chat
elif isinstance(m, CallbackQuery):
value = m.message.chat
else:
raise ValueError(f"Private filter doesn't work with {type(m)}")
return bool(value and value.type in {enums.ChatType.PRIVATE, enums.ChatType.BOT})
private = create(private_filter)
"""Filter messages sent in private chats."""
# endregion
# region group_filter
def group_filter(_, __, m: CallbackQuery | Message):
if isinstance(m, Message):
value = m.chat
elif isinstance(m, CallbackQuery):
value = m.message.chat
else:
raise ValueError(f"Group filter doesn't work with {type(m)}")
return bool(value and value.type in {enums.ChatType.GROUP, enums.ChatType.SUPERGROUP})
group = create(group_filter)
"""Filter messages sent in group or supergroup chats."""
# endregion
# region channel_filter
def channel_filter(_, __, m: CallbackQuery | Message):
if isinstance(m, Message):
value = m.chat
elif isinstance(m, CallbackQuery):
value = m.message.chat
else:
raise ValueError(f"Channel filter doesn't work with {type(m)}")
return bool(value and value.type == enums.ChatType.CHANNEL)
channel = create(channel_filter)
"""Filter messages sent in channels."""
# endregion
# region new_chat_members_filter
def new_chat_members_filter(_, __, m: Message):
return bool(m.new_chat_members)
new_chat_members = create(new_chat_members_filter)
"""Filter service messages for new chat members."""
# endregion
# region left_chat_member_filter
def left_chat_member_filter(_, __, m: Message):
return bool(m.left_chat_member)
left_chat_member = create(left_chat_member_filter)
"""Filter service messages for members that left the chat."""
# endregion
# region new_chat_title_filter
def new_chat_title_filter(_, __, m: Message):
return bool(m.new_chat_title)
new_chat_title = create(new_chat_title_filter)
"""Filter service messages for new chat titles."""
# endregion
# region new_chat_photo_filter
def new_chat_photo_filter(_, __, m: Message):
return bool(m.new_chat_photo)
new_chat_photo = create(new_chat_photo_filter)
"""Filter service messages for new chat photos."""
# endregion
# region delete_chat_photo_filter
def delete_chat_photo_filter(_, __, m: Message):
return bool(m.delete_chat_photo)
delete_chat_photo = create(delete_chat_photo_filter)
"""Filter service messages for deleted photos."""
# endregion
# region group_chat_created_filter
def group_chat_created_filter(_, __, m: Message):
return bool(m.group_chat_created)
group_chat_created = create(group_chat_created_filter)
"""Filter service messages for group chat creations."""
# endregion
# region supergroup_chat_created_filter
def supergroup_chat_created_filter(_, __, m: Message):
return bool(m.supergroup_chat_created)
supergroup_chat_created = create(supergroup_chat_created_filter)
"""Filter service messages for supergroup chat creations."""
# endregion
# region channel_chat_created_filter
def channel_chat_created_filter(_, __, m: Message):
return bool(m.channel_chat_created)
channel_chat_created = create(channel_chat_created_filter)
"""Filter service messages for channel chat creations."""
# endregion
# region migrate_to_chat_id_filter
def migrate_to_chat_id_filter(_, __, m: Message):
return bool(m.migrate_to_chat_id)
migrate_to_chat_id = create(migrate_to_chat_id_filter)
"""Filter service messages that contain migrate_to_chat_id."""
# endregion
# region migrate_from_chat_id_filter
def migrate_from_chat_id_filter(_, __, m: Message):
return bool(m.migrate_from_chat_id)
migrate_from_chat_id = create(migrate_from_chat_id_filter)
"""Filter service messages that contain migrate_from_chat_id."""
# endregion
# region pinned_message_filter
def pinned_message_filter(_, __, m: Message):
return bool(m.pinned_message)
pinned_message = create(pinned_message_filter)
"""Filter service messages for pinned messages."""
# endregion
# region game_high_score_filter
def game_high_score_filter(_, __, m: Message):
return bool(m.game_high_score)
game_high_score = create(game_high_score_filter)
"""Filter service messages for game high scores."""
# endregion
# region reply_keyboard_filter
def reply_keyboard_filter(_, __, m: Message):
return isinstance(m.reply_markup, ReplyKeyboardMarkup)
reply_keyboard = create(reply_keyboard_filter)
"""Filter messages containing reply keyboard markups"""
# endregion
# region inline_keyboard_filter
def inline_keyboard_filter(_, __, m: Message):
return isinstance(m.reply_markup, InlineKeyboardMarkup)
inline_keyboard = create(inline_keyboard_filter)
"""Filter messages containing inline keyboard markups"""
# endregion
# region mentioned_filter
def mentioned_filter(_, __, m: Message):
return bool(m.mentioned)
mentioned = create(mentioned_filter)
"""Filter messages containing mentions"""
# endregion
# region via_bot_filter
def via_bot_filter(_, __, m: Message):
return bool(m.via_bot)
via_bot = create(via_bot_filter)
"""Filter messages sent via inline bots"""
# endregion
# region video_chat_started_filter
def video_chat_started_filter(_, __, m: Message):
return bool(m.video_chat_started)
video_chat_started = create(video_chat_started_filter)
"""Filter messages for started video chats"""
# endregion
# region video_chat_ended_filter
def video_chat_ended_filter(_, __, m: Message):
return bool(m.video_chat_ended)
video_chat_ended = create(video_chat_ended_filter)
"""Filter messages for ended video chats"""
# endregion
# region video_chat_members_invited_filter
def video_chat_members_invited_filter(_, __, m: Message):
return bool(m.video_chat_members_invited)
video_chat_members_invited = create(video_chat_members_invited_filter)
"""Filter messages for voice chat invited members"""
# endregion
# region service_filter
def service_filter(_, __, m: Message):
return bool(m.service)
service = create(service_filter)
"""Filter service messages.
A service message contains any of the following fields set: *left_chat_member*,
*new_chat_title*, *new_chat_photo*, *delete_chat_photo*, *group_chat_created*, *supergroup_chat_created*,
*channel_chat_created*, *migrate_to_chat_id*, *migrate_from_chat_id*, *pinned_message*, *game_score*,
*video_chat_started*, *video_chat_ended*, *video_chat_members_invited*.
"""
# endregion
# region media_filter
def media_filter(_, __, m: Message):
return bool(m.media)
media = create(media_filter)
"""Filter media messages.
A media message contains any of the following fields set: *audio*, *document*, *photo*, *sticker*, *video*,
*animation*, *voice*, *video_note*, *contact*, *location*, *venue*, *poll*.
"""
# endregion
# region scheduled_filter
def scheduled_filter(_, __, m: Message):
return bool(m.scheduled)
scheduled = create(scheduled_filter)
"""Filter messages that have been scheduled (not yet sent)."""
# endregion
# region from_scheduled_filter
def from_scheduled_filter(_, __, m: Message):
return bool(m.from_scheduled)
from_scheduled = create(from_scheduled_filter)
"""Filter new automatically sent messages that were previously scheduled."""
# endregion
# region linked_channel_filter
def linked_channel_filter(_, __, m: Message):
return bool(m.forward_from_chat and not m.from_user)
linked_channel = create(linked_channel_filter)
"""Filter messages that are automatically forwarded from the linked channel to the group chat."""
# endregion
# region command_filter
def command(
commands: str | list[str],
prefixes: str | list[str] = "/",
case_sensitive: bool = False,
):
"""Filter commands, i.e.: text messages starting with "/" or any other custom prefix.
Parameters:
commands (``str`` | ``list``):
The command or list of commands as string the filter should look for.
Examples: "start", ["start", "help", "settings"]. When a message text containing
a command arrives, the command itself and its arguments will be stored in the *command*
field of the :obj:`~hydrogram.types.Message`.
prefixes (``str`` | ``list``, *optional*):
A prefix or a list of prefixes as string the filter should look for.
Defaults to "/" (slash). Examples: ".", "!", ["/", "!", "."], list(".:!").
Pass None or "" (empty string) to allow commands with no prefix at all.
case_sensitive (``bool``, *optional*):
Pass True if you want your command(s) to be case sensitive. Defaults to False.
Examples: when True, command="Start" would trigger /Start but not /start.
"""
command_re = re.compile(r"([\"'])(.*?)(?<!\\)\1|(\S+)")
def func(flt, client: hydrogram.Client, message: Message):
username = client.me.username or ""
text = message.text or message.caption
message.command = None
if not text:
return False
for prefix in flt.prefixes:
if not text.startswith(prefix):
continue
without_prefix = text[len(prefix) :]
for cmd in flt.commands:
if not re.match(
rf"^(?:{cmd}(?:@?{username})?)(?:\s|$)",
without_prefix,
flags=0 if flt.case_sensitive else re.IGNORECASE,
):
continue
without_command = re.sub(
rf"{cmd}(?:@?{username})?\s?",
"",
without_prefix,
count=1,
flags=0 if flt.case_sensitive else re.IGNORECASE,
)
# match.groups are 1-indexed, group(1) is the quote, group(2) is the text
# between the quotes, group(3) is unquoted, whitespace-split text
# Remove the escape character from the arguments
message.command = [cmd] + [
re.sub(r"\\([\"'])", r"\1", m.group(2) or m.group(3) or "")
for m in command_re.finditer(without_command)
]
return True
return False
commands = commands if isinstance(commands, list) else [commands]
commands = {c if case_sensitive else c.lower() for c in commands}
prefixes = [] if prefixes is None else prefixes
prefixes = prefixes if isinstance(prefixes, list) else [prefixes]
prefixes = set(prefixes) if prefixes else {""}
return create(
func,
"CommandFilter",
commands=commands,
prefixes=prefixes,
case_sensitive=case_sensitive,
)
# endregion
def regex(pattern: str | Pattern, flags: int = 0):
"""Filter updates that match a given regular expression pattern.
Can be applied to handlers that receive one of the following updates:
- :obj:`~hydrogram.types.Message`: The filter will match ``text`` or ``caption``.
- :obj:`~hydrogram.types.CallbackQuery`: The filter will match ``data``.
- :obj:`~hydrogram.types.InlineQuery`: The filter will match ``query``.
When a pattern matches, all the `Match Objects <https://docs.python.org/3/library/re.html#match-objects>`_ are
stored in the ``matches`` field of the update object itself.
Parameters:
pattern (``str`` | ``Pattern``):
The regex pattern as string or as pre-compiled pattern.
flags (``int``, *optional*):
Regex flags.
"""
def func(flt, _, update: Update):
if isinstance(update, Message):
value = update.text or update.caption
elif isinstance(update, CallbackQuery):
value = update.data
elif isinstance(update, InlineQuery):
value = update.query
else:
raise ValueError(f"Regex filter doesn't work with {type(update)}")
if value:
update.matches = list(flt.p.finditer(value)) or None
return bool(update.matches)
return create(
func,
"RegexFilter",
p=pattern if isinstance(pattern, Pattern) else re.compile(pattern, flags),
)
class user(Filter, set): # noqa: N801
"""Filter messages coming from one or more users.
You can use `set bound methods <https://docs.python.org/3/library/stdtypes.html#set>`_ to manipulate the
users container.
Parameters:
users (``int`` | ``str`` | ``list``):
Pass one or more user ids/usernames to filter users.
For you yourself, "me" or "self" can be used as well.
Defaults to None (no users).
"""
def __init__(self, users: int | str | list[int | str] | None = None):
users = [] if users is None else users if isinstance(users, list) else [users]
super().__init__(
"me" if u in {"me", "self"} else u.lower().strip("@") if isinstance(u, str) else u
for u in users
)
async def __call__(self, _, message: Message):
return message.from_user and (
message.from_user.id in self
or (message.from_user.username and message.from_user.username.lower() in self)
or ("me" in self and message.from_user.is_self)
)
class chat(Filter, set): # noqa: N801
"""Filter messages coming from one or more chats.
You can use `set bound methods <https://docs.python.org/3/library/stdtypes.html#set>`_ to manipulate the
chats container.
Parameters:
chats (``int`` | ``str`` | ``list``):
Pass one or more chat ids/usernames to filter chats.
For your personal cloud (Saved Messages) you can simply use "me" or "self".
Defaults to None (no chats).
"""
def __init__(self, chats: int | str | list[int | str] | None = None):
chats = [] if chats is None else chats if isinstance(chats, list) else [chats]
super().__init__(
"me" if c in {"me", "self"} else c.lower().strip("@") if isinstance(c, str) else c
for c in chats
)
async def __call__(self, _, message: Message):
return message.chat and (
message.chat.id in self
or (message.chat.username and message.chat.username.lower() in self)
or (
"me" in self
and message.from_user
and message.from_user.is_self
and not message.outgoing
)
)