95 lines
4.0 KiB
Python
95 lines
4.0 KiB
Python
# maubot - A plugin-based Matrix bot system.
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# Copyright (C) 2018 Tulir Asokan
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from typing import Union, Awaitable, Optional, Tuple
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from markdown.extensions import Extension
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import markdown as md
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import attr
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from mautrix import Client as MatrixClient
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from mautrix.util.formatter import parse_html
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from mautrix.types import (EventType, MessageEvent, Event, EventID, RoomID, MessageEventContent,
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MessageType, TextMessageEventContent, Format, RelatesTo, StateEvent)
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class EscapeHTML(Extension):
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def extendMarkdown(self, md):
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md.preprocessors.deregister("html_block")
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md.inlinePatterns.deregister("html")
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escape_html = EscapeHTML()
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def parse_markdown(markdown: str, allow_html: bool = False) -> Tuple[str, str]:
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html = md.markdown(markdown, extensions=[escape_html] if not allow_html else [])
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return parse_html(html), html
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class MaubotMessageEvent(MessageEvent):
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client: MatrixClient
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def __init__(self, base: MessageEvent, client: MatrixClient):
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super().__init__(**{a.name.lstrip("_"): getattr(base, a.name)
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for a in attr.fields(MessageEvent)})
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self.client = client
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def respond(self, content: Union[str, MessageEventContent],
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event_type: EventType = EventType.ROOM_MESSAGE, markdown: bool = True,
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html_in_markdown: bool = False, reply: bool = False) -> Awaitable[EventID]:
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if isinstance(content, str):
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content = TextMessageEventContent(msgtype=MessageType.NOTICE, body=content)
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if markdown:
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content.format = Format.HTML
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content.body, content.formatted_body = parse_markdown(content.body,
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allow_html=html_in_markdown)
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if reply:
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content.set_reply(self)
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return self.client.send_message_event(self.room_id, event_type, content)
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def reply(self, content: Union[str, MessageEventContent],
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event_type: EventType = EventType.ROOM_MESSAGE, markdown: bool = True,
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html_in_markdown: bool = False) -> Awaitable[EventID]:
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return self.respond(content, event_type, markdown, reply=True,
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html_in_markdown=html_in_markdown)
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def mark_read(self) -> Awaitable[None]:
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return self.client.send_receipt(self.room_id, self.event_id, "m.read")
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class MaubotMatrixClient(MatrixClient):
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def send_markdown(self, room_id: RoomID, markdown: str, msgtype: MessageType = MessageType.TEXT,
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relates_to: Optional[RelatesTo] = None, **kwargs) -> Awaitable[EventID]:
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content = TextMessageEventContent(msgtype=msgtype, format=Format.HTML)
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content.body, content.formatted_body = parse_markdown(markdown)
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if relates_to:
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content.relates_to = relates_to
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return self.send_message(room_id, content, **kwargs)
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async def call_handlers(self, event: Event) -> None:
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if isinstance(event, MessageEvent):
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event = MaubotMessageEvent(event, self)
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else:
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event.client = self
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return await super().call_handlers(event)
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async def get_event(self, room_id: RoomID, event_id: EventID) -> Event:
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event = await super().get_event(room_id, event_id)
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if isinstance(event, MessageEvent):
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return MaubotMessageEvent(event, self)
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else:
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event.client = self
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return event
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