Telethon/telethon/tl/custom/message.py
2018-06-25 11:38:56 +02:00

712 lines
25 KiB
Python

from .. import types
from ...utils import get_input_peer, get_peer_id, get_inner_text
from .messagebutton import MessageButton
from .forward import Forward
class Message:
"""
Custom class that encapsulates a message providing an abstraction to
easily access some commonly needed features (such as the markdown text
or the text for a given message entity).
Attributes:
original_message (:tl:`Message`):
The original :tl:`Message` object.
Any other attribute:
Attributes not described here are the same as those available
in the original :tl:`Message`.
"""
def __init__(self, client, original, entities, input_chat):
# Share the original dictionary. Modifications to this
# object should also be reflected in the original one.
# This way there's no need to worry about get/setattr.
self.__dict__ = original.__dict__
self.original_message = original
self.stringify = self.original_message.stringify
self.to_dict = self.original_message.to_dict
self._client = client
self._text = None
self._reply_message = None
self._buttons = None
self._buttons_flat = None
self._buttons_count = None
self._sender = entities.get(self.original_message.from_id)
if self._sender:
self._input_sender = get_input_peer(self._sender)
else:
self._input_sender = None
# Determine the right chat where the message
# was sent, not *to which ID* it was sent.
if not self.original_message.out \
and isinstance(self.original_message.to_id, types.PeerUser):
self._chat_peer = types.PeerUser(self.original_message.from_id)
else:
self._chat_peer = self.original_message.to_id
self._chat = entities.get(self.chat_id)
self._input_chat = input_chat
if not self._input_chat and self._chat:
self._input_chat = get_input_peer(self._chat)
if getattr(self.original_message, 'fwd_from', None):
self._forward = Forward(
self._client, self.original_message.fwd_from, entities)
else:
self._forward = None
def __new__(cls, client, original, entities, input_chat):
if isinstance(original, types.Message):
return super().__new__(_CustomMessage)
elif isinstance(original, types.MessageService):
return super().__new__(_CustomMessageService)
else:
return cls
def __str__(self):
return str(self.original_message)
def __repr__(self):
return repr(self.original_message)
def __bytes__(self):
return bytes(self.original_message)
@property
def client(self):
"""
Returns the `telethon.telegram_client.TelegramClient` instance that
created this instance.
"""
return self._client
@property
def text(self):
"""
The message text, formatted using the client's default parse mode.
Will be ``None`` for :tl:`MessageService`.
"""
if self._text is None\
and isinstance(self.original_message, types.Message):
if not self._client.parse_mode:
return self.original_message.message
self._text = self._client.parse_mode.unparse(
self.original_message.message, self.original_message.entities)
return self._text
@text.setter
def text(self, value):
if isinstance(self.original_message, types.Message):
if self._client.parse_mode:
msg, ent = self._client.parse_mode.parse(value)
else:
msg, ent = value, []
self.original_message.message = msg
self.original_message.entities = ent
self._text = value
@property
def raw_text(self):
"""
The raw message text, ignoring any formatting.
Will be ``None`` for :tl:`MessageService`.
"""
if isinstance(self.original_message, types.Message):
return self.original_message.message
@raw_text.setter
def raw_text(self, value):
if isinstance(self.original_message, types.Message):
self.original_message.message = value
self.original_message.entities = []
self._text = None
@property
def message(self):
"""
The raw message text, ignoring any formatting.
Will be ``None`` for :tl:`MessageService`.
"""
return self.raw_text
@message.setter
def message(self, value):
self.raw_text = value
@property
def action(self):
"""
The :tl:`MessageAction` for the :tl:`MessageService`.
Will be ``None`` for :tl:`Message`.
"""
if isinstance(self.original_message, types.MessageService):
return self.original_message.action
async def _reload_message(self):
"""
Re-fetches this message to reload the sender and chat entities,
along with their input versions.
"""
try:
chat = await self.get_input_chat() if self.is_channel else None
msg = await self._client.get_messages(
chat, ids=self.original_message.id)
except ValueError:
return # We may not have the input chat/get message failed
if not msg:
return # The message may be deleted and it will be None
self._sender = msg._sender
self._input_sender = msg._input_sender
self._chat = msg._chat
self._input_chat = msg._input_chat
@property
def sender(self):
"""
Returns the :tl:`User` that sent this message. It may be ``None``
if the message has no sender or if Telegram didn't send the sender
inside message events.
If you're using `telethon.events`, use `get_sender` instead.
"""
return self._sender
async def get_sender(self):
"""
Returns `sender`, but will make an API call to find the
sender unless it's already cached.
"""
if self._sender is None and await self.get_input_sender():
try:
self._sender =\
await self._client.get_entity(self._input_sender)
except ValueError:
await self._reload_message()
return self._sender
@property
def chat(self):
"""
Returns the :tl:`User`, :tl:`Chat` or :tl:`Channel` where this message
was sent. It may be ``None`` if Telegram didn't send the chat inside
message events.
If you're using `telethon.events`, use `get_chat` instead.
"""
return self._chat
async def get_chat(self):
"""
Returns `chat`, but will make an API call to find the
chat unless it's already cached.
"""
if self._chat is None and await self.get_input_chat():
try:
self._chat =\
await self._client.get_entity(self._input_chat)
except ValueError:
await self._reload_message()
return self._chat
@property
def input_sender(self):
"""
This (:tl:`InputPeer`) is the input version of the user who
sent the message. Similarly to `input_chat`, this doesn't have
things like username or similar, but still useful in some cases.
Note that this might not be available if the library can't
find the input chat, or if the message a broadcast on a channel.
"""
if self._input_sender is None:
if self.is_channel and not self.is_group:
return None
try:
self._input_sender = self._client.session\
.get_input_entity(self.original_message.from_id)
except ValueError:
pass
return self._input_sender
async def get_input_sender(self):
"""
Returns `input_sender`, but will make an API call to find the
input sender unless it's already cached.
"""
if self.input_sender is None\
and not self.is_channel and not self.is_group:
await self._reload_message()
return self._input_sender
@property
def input_chat(self):
"""
This (:tl:`InputPeer`) is the input version of the chat where the
message was sent. Similarly to `input_sender`, this doesn't have
things like username or similar, but still useful in some cases.
Note that this might not be available if the library doesn't know
where the message came from.
"""
if self._input_chat is None:
try:
self._input_chat =\
self._client.session.get_input_entity(self._chat_peer)
except ValueError:
pass
return self._input_chat
async def get_input_chat(self):
"""
Returns `input_chat`, but will make an API call to find the
input chat unless it's already cached.
"""
if self.input_chat is None:
# There's a chance that the chat is a recent new dialog.
# The input chat cannot rely on ._reload_message() because
# said method may need the input chat.
target = self.chat_id
async for d in self._client.iter_dialogs(100):
if d.id == target:
self._chat = d.entity
self._input_chat = d.input_entity
break
return self._input_chat
@property
def sender_id(self):
"""
Returns the marked sender integer ID, if present.
"""
return self.original_message.from_id
@property
def chat_id(self):
"""
Returns the marked chat integer ID. Note that this value **will
be different** from `to_id` for incoming private messages, since
the chat *to* which the messages go is to your own person, but
the *chat* itself is with the one who sent the message.
TL;DR; this gets the ID that you expect.
"""
return get_peer_id(self._chat_peer)
@property
def is_private(self):
"""True if the message was sent as a private message."""
return isinstance(self.original_message.to_id, types.PeerUser)
@property
def is_group(self):
"""True if the message was sent on a group or megagroup."""
return (
isinstance(self.original_message.to_id, (types.PeerChat,
types.PeerChannel))
and not self.original_message.post
)
@property
def is_channel(self):
"""True if the message was sent on a megagroup or channel."""
return isinstance(self.original_message.to_id, types.PeerChannel)
@property
def is_reply(self):
"""True if the message is a reply to some other or not."""
return bool(self.original_message.reply_to_msg_id)
@property
def forward(self):
"""
Returns `telethon.tl.custom.forward.Forward` if the message
has been forwarded from somewhere else.
"""
return self._forward
def _set_buttons(self, sender, chat):
"""
Helper methods to set the buttons given the input sender and chat.
"""
if isinstance(self.original_message.reply_markup, (
types.ReplyInlineMarkup, types.ReplyKeyboardMarkup)):
self._buttons = [[
MessageButton(self._client, button, sender, chat,
self.original_message.id)
for button in row.buttons
] for row in self.original_message.reply_markup.rows]
self._buttons_flat = [x for row in self._buttons for x in row]
@property
def buttons(self):
"""
Returns a matrix (list of lists) containing all buttons of the message
as `telethon.tl.custom.messagebutton.MessageButton` instances.
"""
if self._buttons is None and self.original_message.reply_markup:
if self.input_sender and self.input_chat:
self._set_buttons(self._input_sender, self._input_chat)
return self._buttons
async def get_buttons(self):
"""
Returns `buttons`, but will make an API call to find the
input chat (needed for the buttons) unless it's already cached.
"""
if not self.buttons:
sender = await self.get_input_sender()
chat = await self.get_input_chat()
if sender and chat:
self._set_buttons(sender, chat)
return self._buttons
@property
def button_count(self):
"""
Returns the total button count.
"""
if self._buttons_count is not None and isinstance(
self.original_message.reply_markup, (
types.ReplyInlineMarkup, types.ReplyKeyboardMarkup
)):
self._buttons_count = sum(
1
for row in self.original_message.reply_markup.rows
for _ in row.buttons
)
return self._buttons_count or 0
@property
def photo(self):
"""
If the message media is a photo,
this returns the :tl:`Photo` object.
"""
if isinstance(self.original_message.media, types.MessageMediaPhoto):
photo = self.original_message.media.photo
if isinstance(photo, types.Photo):
return photo
@property
def document(self):
"""
If the message media is a document,
this returns the :tl:`Document` object.
"""
if isinstance(self.original_message.media, types.MessageMediaDocument):
doc = self.original_message.media.document
if isinstance(doc, types.Document):
return doc
def _document_by_attribute(self, kind, condition=None):
"""
Helper method to return the document only if it has an attribute
that's an instance of the given kind, and passes the condition.
"""
doc = self.document
if doc:
for attr in doc.attributes:
if isinstance(attr, kind):
if not condition or condition(doc):
return doc
@property
def audio(self):
"""
If the message media is a document with an Audio attribute,
this returns the :tl:`Document` object.
"""
return self._document_by_attribute(types.DocumentAttributeAudio,
lambda attr: not attr.voice)
@property
def voice(self):
"""
If the message media is a document with a Voice attribute,
this returns the :tl:`Document` object.
"""
return self._document_by_attribute(types.DocumentAttributeAudio,
lambda attr: attr.voice)
@property
def video(self):
"""
If the message media is a document with a Video attribute,
this returns the :tl:`Document` object.
"""
return self._document_by_attribute(types.DocumentAttributeVideo)
@property
def video_note(self):
"""
If the message media is a document with a Video attribute,
this returns the :tl:`Document` object.
"""
return self._document_by_attribute(types.DocumentAttributeVideo,
lambda attr: attr.round_message)
@property
def gif(self):
"""
If the message media is a document with an Animated attribute,
this returns the :tl:`Document` object.
"""
return self._document_by_attribute(types.DocumentAttributeAnimated)
@property
def sticker(self):
"""
If the message media is a document with a Sticker attribute,
this returns the :tl:`Document` object.
"""
return self._document_by_attribute(types.DocumentAttributeSticker)
@property
def out(self):
"""
Whether the message is outgoing (i.e. you sent it from
another session) or incoming (i.e. someone else sent it).
Note that messages in your own chat are always incoming,
but this property will be ``True`` if you send a message
to your own chat. Messages you forward to your chat are
*not* considered outgoing, just like official clients
display them.
"""
return self.original_message.out
async def get_reply_message(self):
"""
The `telethon.tl.custom.message.Message` that this message is replying
to, or ``None``.
Note that this will make a network call to fetch the message and
will later be cached.
"""
if self._reply_message is None:
if not self.original_message.reply_to_msg_id:
return None
self._reply_message = await self._client.get_messages(
await self.get_input_chat() if self.is_channel else None,
ids=self.original_message.reply_to_msg_id
)
return self._reply_message
async def get_fwd_sender(self):
"""
If the :tl:`Message` is a forwarded message, returns the :tl:`User`
or :tl:`Channel` who originally sent the message, or ``None``.
"""
if self._fwd_from_entity is None:
if getattr(self.original_message, 'fwd_from', None):
fwd = self.original_message.fwd_from
if fwd.from_id:
self._fwd_from_entity =\
await self._client.get_entity(fwd.from_id)
elif fwd.channel_id:
self._fwd_from_entity = await self._client.get_entity(
get_peer_id(types.PeerChannel(fwd.channel_id)))
return self._fwd_from_entity
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.
"""
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.
"""
kwargs['reply_to'] = self.original_message.id
return await self._client.send_message(
await self.get_input_chat(), *args, **kwargs)
async def forward_to(self, *args, **kwargs):
"""
Forwards the message. Shorthand for
`telethon.telegram_client.TelegramClient.forward_messages` with
both ``messages`` and ``from_peer`` already set.
If you need to forward more than one message at once, don't use
this `forward_to` method. Use a
`telethon.telegram_client.TelegramClient` instance directly.
"""
kwargs['messages'] = self.original_message.id
kwargs['from_peer'] = await self.get_input_chat()
return await self._client.forward_messages(*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 ``None`` if the message was incoming, or the edited
:tl:`Message` otherwise.
"""
if self.original_message.fwd_from:
return None
if not self.original_message.out:
if not isinstance(self.original_message.to_id, types.PeerUser):
return None
me = self._client.get_me(input_peer=True)
if self.original_message.to_id.user_id != me.user_id:
return None
return await self._client.edit_message(
await self.get_input_chat(), self.original_message,
*args, **kwargs
)
async def delete(self, *args, **kwargs):
"""
Deletes the message. You're responsible for checking whether you
have the permission to do so, or to except the error otherwise.
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.
"""
return await self._client.delete_messages(
await self.get_input_chat(), [self.original_message],
*args, **kwargs
)
async def download_media(self, *args, **kwargs):
"""
Downloads the media contained in the message, if any.
`telethon.telegram_client.TelegramClient.download_media` with
the ``message`` already set.
"""
return await self._client.download_media(
self.original_message, *args, **kwargs)
def get_entities_text(self, cls=None):
"""
Returns a list of tuples [(:tl:`MessageEntity`, `str`)], the string
being the inner text of the message entity (like bold, italics, etc).
Args:
cls (`type`):
Returns entities matching this type only. For example,
the following will print the text for all ``code`` entities:
>>> from telethon.tl.types import MessageEntityCode
>>>
>>> m = Message(...)
>>> for _, inner_text in m.get_entities_text(MessageEntityCode):
>>> print(inner_text)
"""
if not self.original_message.entities:
return []
if cls and self.original_message.entities:
texts = get_inner_text(
self.original_message.message,
[c for c in self.original_message.entities
if isinstance(c, cls)]
)
else:
texts = get_inner_text(self.original_message.message,
self.original_message.entities)
return list(zip(self.original_message.entities, texts))
async def click(self, i=None, j=None, *, text=None, filter=None):
"""
Calls `telethon.tl.custom.messagebutton.MessageButton.click`
for the specified button.
Does nothing if the message has no buttons.
Args:
i (`int`):
Clicks the i'th button (starting from the index 0).
Will ``raise IndexError`` if out of bounds. Example:
>>> message = Message(...)
>>> # Clicking the 3rd button
>>> # [button1] [button2]
>>> # [ button3 ]
>>> # [button4] [button5]
>>> message.click(2) # index
j (`int`):
Clicks the button at position (i, j), these being the
indices for the (row, column) respectively. Example:
>>> # Clicking the 2nd button on the 1st row.
>>> # [button1] [button2]
>>> # [ button3 ]
>>> # [button4] [button5]
>>> message.click(0, 1) # (row, column)
This is equivalent to ``message.buttons[0][1].click()``.
text (`str` | `callable`):
Clicks the first button with the text "text". This may
also be a callable, like a ``re.compile(...).match``,
and the text will be passed to it.
filter (`callable`):
Clicks the first button for which the callable
returns ``True``. The callable should accept a single
`telethon.tl.custom.messagebutton.MessageButton` argument.
"""
if sum(int(x is not None) for x in (i, text, filter)) >= 2:
raise ValueError('You can only set either of i, text or filter')
if not await self.get_buttons():
return # Accessing the property sets self._buttons[_flat]
if text is not None:
if callable(text):
for button in self._buttons_flat:
if text(button.text):
return await button.click()
else:
for button in self._buttons_flat:
if button.text == text:
return await button.click()
return
if filter is not None:
for button in self._buttons_flat:
if filter(button):
return await button.click()
return
if i is None:
i = 0
if j is None:
return await self._buttons_flat[i].click()
else:
return await self._buttons[i][j].click()
class _CustomMessage(Message, types.Message):
pass
class _CustomMessageService(Message, types.MessageService):
pass