Telethon/telethon/tl/custom/message.py
2018-06-02 12:52:38 +02:00

565 lines
20 KiB
Python

from .. import types
from ...extensions import markdown
from ...utils import get_input_peer, get_peer_id
from .messagebutton import MessageButton
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):
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._sender = entities.get(self.original_message.from_id)
self._chat = entities.get(get_peer_id(self.original_message.to_id))
if self._sender:
self._input_sender = get_input_peer(self._sender)
else:
self._input_sender = None
self._input_chat = input_chat
self._fwd_from_entity = None
if getattr(self.original_message, 'fwd_from', None):
fwd = self.original_message.fwd_from
if fwd.from_id:
self._fwd_from_entity = entities.get(fwd.from_id)
elif fwd.channel_id:
self._fwd_from_entity = entities.get(get_peer_id(
types.PeerChannel(fwd.channel_id)))
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 __getattr__(self, item):
return getattr(self.original_message, item)
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, markdown-formatted.
Will be ``None`` for :tl:`MessageService`.
"""
if self._text is None\
and isinstance(self.original_message, types.Message):
if not self.original_message.entities:
return self.original_message.message
self._text = markdown.unparse(self.original_message.message,
self.original_message.entities or [])
return self._text
@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
@property
def message(self):
"""
The raw message text, ignoring any formatting.
Will be ``None`` for :tl:`MessageService`.
"""
return self.raw_text
@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
def _reload_message(self):
"""
Re-fetches this message to reload the sender and chat entities,
along with their input versions.
"""
try:
chat = self.input_chat if self.is_channel else None
msg = 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):
"""
This (:tl:`User`) may make an API call the first time to get
the most up to date version of the sender (mostly when the event
doesn't belong to a channel), so keep that in mind.
`input_sender` needs to be available (often the case).
"""
if self._sender is None:
try:
self._sender = self._client.get_entity(self.input_sender)
except ValueError:
self._reload_message()
return self._sender
@property
def chat(self):
if self._chat is None:
try:
self._chat = self._client.get_entity(self.input_chat)
except ValueError:
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
if self._sender is not None:
self._input_sender = get_input_peer(self._sender)
else:
try:
self._input_sender = self._client.get_input_entity(
self.original_message.from_id)
except ValueError:
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, and it may fetch the dialogs to try
to find it in the worst case.
"""
if self._input_chat is None:
if self._chat is None:
try:
self._chat = self._client.get_input_entity(
self.original_message.to_id)
except ValueError:
# 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
for d in self._client.iter_dialogs(100):
if d.id == target:
self._chat = d.entity
break
if self._chat is not None:
self._input_chat = get_input_peer(self._chat)
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.
"""
return get_peer_id(self.original_message.to_id)
@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 not self.original_message.broadcast and isinstance(
self.original_message.to_id, (types.PeerChat, types.PeerChannel))
@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 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 isinstance(self.original_message.reply_markup, (
types.ReplyInlineMarkup, types.ReplyKeyboardMarkup)):
self._buttons = [[
MessageButton(self._client, button, self.input_sender,
self.input_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]
return self._buttons
@property
def button_count(self):
"""
Returns the total button count.
"""
return len(self._buttons_flat) if self.buttons else 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).
"""
return self.original_message.out
@property
def 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 = self._client.get_messages(
self.input_chat if self.is_channel else None,
ids=self.original_message.reply_to_msg_id
)
return self._reply_message
@property
def fwd_from_entity(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 = self._client.get_entity(
fwd.from_id)
elif fwd.channel_id:
self._fwd_from_entity = self._client.get_entity(
get_peer_id(types.PeerChannel(fwd.channel_id)))
return self._fwd_from_entity
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 self._client.send_message(self.input_chat, *args, **kwargs)
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 self._client.send_message(self.original_message.to_id,
*args, **kwargs)
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'] = self.input_chat
return self._client.forward_messages(*args, **kwargs)
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 self._client.edit_message(
self.input_chat, self.original_message, *args, **kwargs)
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 self._client.delete_messages(
self.input_chat, [self.original_message], *args, **kwargs)
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 self._client.download_media(self.original_message,
*args, **kwargs)
def get_entities_text(self):
"""
Returns a list of tuples [(:tl:`MessageEntity`, `str`)], the string
being the inner text of the message entity (like bold, italics, etc).
"""
texts = markdown.get_inner_text(self.original_message.message,
self.original_message.entities)
return list(zip(self.original_message.entities, texts))
def click(self, i=None, j=None, *, text=None, filter=None):
"""
Clicks the inline keyboard button of the message, if any.
If the message has a non-inline keyboard, clicking it will
send the message, switch to inline, or open its URL.
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 (i, text, filter).count(None) >= 2:
raise ValueError('You can only set either of i, text or filter')
if not self.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 button.click()
else:
for button in self._buttons_flat:
if button.text == text:
return button.click()
return
if filter is not None:
for button in self._buttons_flat:
if filter(button):
return button.click()
return
if i is None:
i = 0
if j is None:
return self._buttons_flat[i].click()
else:
return self._buttons[i][j].click()
class _CustomMessage(Message, types.Message):
pass
class _CustomMessageService(Message, types.MessageService):
pass