139 lines
6.3 KiB
Python
139 lines
6.3 KiB
Python
# maubot - A plugin-based Matrix bot system.
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# Copyright (C) 2019 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 html import escape
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import attr
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from mautrix.client import Client as MatrixClient, SyncStream
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from mautrix.util.formatter import MatrixParser, MarkdownString, EntityType
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from mautrix.util import markdown
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from mautrix.types import (EventType, MessageEvent, Event, EventID, RoomID, MessageEventContent,
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MessageType, TextMessageEventContent, Format, RelatesTo)
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class HumanReadableString(MarkdownString):
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def format(self, entity_type: EntityType, **kwargs) -> 'MarkdownString':
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if entity_type == EntityType.URL and kwargs['url'] != self.text:
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self.text = f"{self.text} ({kwargs['url']})"
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return self
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return super(HumanReadableString, self).format(entity_type, **kwargs)
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class MaubotHTMLParser(MatrixParser[HumanReadableString]):
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e = HumanReadableString
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def parse_formatted(message: str, allow_html: bool = False, render_markdown: bool = True
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) -> Tuple[str, str]:
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if render_markdown:
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html = markdown.render(message, allow_html=allow_html)
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elif allow_html:
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html = message
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else:
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return message, escape(message)
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return MaubotHTMLParser.parse(html).text, html
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class MaubotMessageEvent(MessageEvent):
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client: 'MaubotMatrixClient'
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disable_reply: bool
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def __init__(self, base: MessageEvent, client: 'MaubotMatrixClient'):
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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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self.disable_reply = client.disable_replies
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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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allow_html: bool = False, reply: Union[bool, str] = False,
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edits: Optional[Union[EventID, MessageEvent]] = None) -> 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 allow_html or markdown:
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content.format = Format.HTML
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content.body, content.formatted_body = parse_formatted(content.body,
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render_markdown=markdown,
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allow_html=allow_html)
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if edits:
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content.set_edit(edits)
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elif reply:
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if reply != "force" and self.disable_reply:
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content.body = f"{self.sender}: {content.body}"
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fmt_body = content.formatted_body or escape(content.body).replace("\n", "<br>")
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content.formatted_body = (f'<a href="https://matrix.to/#/{self.sender}">'
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f'{self.sender}'
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f'</a>: {fmt_body}')
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else:
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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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allow_html: bool = False) -> Awaitable[EventID]:
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return self.respond(content, event_type, markdown=markdown, reply=True,
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allow_html=allow_html)
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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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def react(self, key: str) -> Awaitable[EventID]:
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return self.client.react(self.room_id, self.event_id, key)
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def edit(self, content: Union[str, MessageEventContent],
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event_type: EventType = EventType.ROOM_MESSAGE, markdown: bool = True,
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allow_html: bool = False) -> Awaitable[EventID]:
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return self.respond(content, event_type, markdown=markdown, edits=self,
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allow_html=allow_html)
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class MaubotMatrixClient(MatrixClient):
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disable_replies: bool
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def __init__(self, *args, **kwargs) -> None:
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super().__init__(*args, **kwargs)
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self.disable_replies = False
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def send_markdown(self, room_id: RoomID, markdown: str, *, allow_html: bool = False,
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msgtype: MessageType = MessageType.TEXT,
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edits: Optional[Union[EventID, MessageEvent]] = None,
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relates_to: Optional[RelatesTo] = None, **kwargs
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) -> Awaitable[EventID]:
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content = TextMessageEventContent(msgtype=msgtype, format=Format.HTML)
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content.body, content.formatted_body = parse_formatted(markdown, allow_html=allow_html)
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if relates_to:
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if edits:
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raise ValueError("Can't use edits and relates_to at the same time.")
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content.relates_to = relates_to
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elif edits:
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content.set_edit(edits)
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return self.send_message(room_id, content, **kwargs)
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async def dispatch_event(self, event: Event, source: SyncStream = SyncStream.INTERNAL) -> None:
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if isinstance(event, MessageEvent):
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event = MaubotMessageEvent(event, self)
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elif source != SyncStream.INTERNAL:
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event.client = self
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return await super().dispatch_event(event, source)
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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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event.content.trim_reply_fallback()
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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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