mirror of
https://github.com/LonamiWebs/Telethon.git
synced 2024-11-29 21:03:45 +03:00
140 lines
4.9 KiB
Python
140 lines
4.9 KiB
Python
import itertools
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import re
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from .users import UserMethods
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from .. import utils
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from ..tl import types, custom
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class MessageParseMethods(UserMethods):
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# region Public properties
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@property
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def parse_mode(self):
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"""
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This property is the default parse mode used when sending messages.
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Defaults to `telethon.extensions.markdown`. It will always
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be either ``None`` or an object with ``parse`` and ``unparse``
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methods.
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When setting a different value it should be one of:
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* Object with ``parse`` and ``unparse`` methods.
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* A ``callable`` to act as the parse method.
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* A ``str`` indicating the ``parse_mode``. For Markdown ``'md'``
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or ``'markdown'`` may be used. For HTML, ``'htm'`` or ``'html'``
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may be used.
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The ``parse`` method should be a function accepting a single
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parameter, the text to parse, and returning a tuple consisting
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of ``(parsed message str, [MessageEntity instances])``.
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The ``unparse`` method should be the inverse of ``parse`` such
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that ``assert text == unparse(*parse(text))``.
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See :tl:`MessageEntity` for allowed message entities.
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"""
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return self._parse_mode
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@parse_mode.setter
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def parse_mode(self, mode):
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self._parse_mode = utils.sanitize_parse_mode(mode)
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# endregion
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# region Private methods
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async def _replace_with_mention(self, entities, i, user):
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"""
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Helper method to replace ``entities[i]`` to mention ``user``,
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or do nothing if it can't be found.
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"""
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try:
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entities[i] = types.InputMessageEntityMentionName(
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entities[i].offset, entities[i].length,
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await self.get_input_entity(user)
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)
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except (ValueError, TypeError):
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pass
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async def _parse_message_text(self, message, parse_mode):
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"""
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Returns a (parsed message, entities) tuple depending on ``parse_mode``.
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"""
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if parse_mode == utils.Default:
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parse_mode = self._parse_mode
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else:
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parse_mode = utils.sanitize_parse_mode(parse_mode)
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if not parse_mode:
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return message, []
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message, msg_entities = parse_mode.parse(message)
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for i, e in enumerate(msg_entities):
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if isinstance(e, types.MessageEntityTextUrl):
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m = re.match(r'^@|\+|tg://user\?id=(\d+)', e.url)
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if m:
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user = int(m.group(1)) if m.group(1) else e.url
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await self._replace_with_mention(msg_entities, i, user)
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elif isinstance(e, (types.MessageEntityMentionName,
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types.InputMessageEntityMentionName)):
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await self._replace_with_mention(msg_entities, i, e.user_id)
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return message, msg_entities
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def _get_response_message(self, request, result, input_chat):
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"""
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Extracts the response message known a request and Update result.
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The request may also be the ID of the message to match.
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"""
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# Telegram seems to send updateMessageID first, then updateNewMessage,
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# however let's not rely on that just in case.
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if isinstance(request, int):
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msg_id = request
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else:
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msg_id = None
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for update in result.updates:
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if isinstance(update, types.UpdateMessageID):
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if update.random_id == request.random_id:
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msg_id = update.id
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break
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if isinstance(result, types.UpdateShort):
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updates = [result.update]
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entities = {}
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elif isinstance(result, (types.Updates, types.UpdatesCombined)):
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updates = result.updates
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entities = {utils.get_peer_id(x): x
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for x in
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itertools.chain(result.users, result.chats)}
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else:
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return
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found = None
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for update in updates:
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if isinstance(update, (
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types.UpdateNewChannelMessage, types.UpdateNewMessage)):
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if update.message.id == msg_id:
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found = update.message
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break
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elif (isinstance(update, types.UpdateEditMessage)
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and not isinstance(request.peer, types.InputPeerChannel)):
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if request.id == update.message.id:
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found = update.message
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break
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elif (isinstance(update, types.UpdateEditChannelMessage)
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and utils.get_peer_id(request.peer) ==
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utils.get_peer_id(update.message.to_id)):
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if request.id == update.message.id:
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found = update.message
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break
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if found:
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found._finish_init(self, entities, input_chat)
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return found
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# endregion
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