matrix-appservice-kakaotalk/matrix_appservice_kakaotalk/formatter/from_matrix.py

121 lines
4.3 KiB
Python

# matrix-appservice-kakaotalk - A Matrix-KakaoTalk puppeting bridge.
# Copyright (C) 2022 Tulir Asokan, Andrew Ferrazzutti
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
from __future__ import annotations
from typing import NamedTuple
from mautrix.types import Format, MessageEventContent, RelationType, RoomID
from mautrix.util.formatter import (
EntityString,
EntityType,
MarkdownString,
MatrixParser as BaseMatrixParser,
SimpleEntity,
)
from mautrix.util.logging import TraceLogger
from .. import puppet as pu, user as u
from ..db import Message as DBMessage
class SendParams(NamedTuple):
text: str
mentions: list[None]
reply_to: str
class FacebookFormatString(EntityString[SimpleEntity, EntityType], MarkdownString):
def format(self, entity_type: EntityType, **kwargs) -> FacebookFormatString:
prefix = suffix = ""
if entity_type == EntityType.USER_MENTION:
self.entities.append(
SimpleEntity(
type=entity_type,
offset=0,
length=len(self.text),
extra_info={"user_id": kwargs["user_id"]},
)
)
return self
elif entity_type == EntityType.BOLD:
prefix = suffix = "*"
elif entity_type == EntityType.ITALIC:
prefix = suffix = "_"
elif entity_type == EntityType.STRIKETHROUGH:
prefix = suffix = "~"
elif entity_type == EntityType.URL:
if kwargs["url"] != self.text:
suffix = f" ({kwargs['url']})"
elif entity_type == EntityType.PREFORMATTED:
prefix = f"```{kwargs['language']}\n"
suffix = "\n```"
elif entity_type == EntityType.INLINE_CODE:
prefix = suffix = "`"
elif entity_type == EntityType.BLOCKQUOTE:
children = self.trim().split("\n")
children = [child.prepend("> ") for child in children]
return self.join(children, "\n")
elif entity_type == EntityType.HEADER:
prefix = "#" * kwargs["size"] + " "
else:
return self
self._offset_entities(len(prefix))
self.text = f"{prefix}{self.text}{suffix}"
return self
class MatrixParser(BaseMatrixParser[FacebookFormatString]):
fs = FacebookFormatString
async def matrix_to_kakaotalk(
content: MessageEventContent, room_id: RoomID, log: TraceLogger
) -> SendParams:
mentions = []
reply_to = None
if content.relates_to.rel_type == RelationType.REPLY:
message = await DBMessage.get_by_mxid(content.relates_to.event_id, room_id)
if message:
content.trim_reply_fallback()
reply_to = message.ktid
else:
log.warning(
f"Couldn't find reply target {content.relates_to.event_id}"
" to bridge text message reply metadata to Facebook"
)
if content.get("format", None) == Format.HTML and content["formatted_body"]:
parsed = await MatrixParser().parse(content["formatted_body"])
text = parsed.text
mentions = []
for mention in parsed.entities:
mxid = mention.extra_info["user_id"]
user = await u.User.get_by_mxid(mxid, create=False)
if user and user.ktid:
ktid = user.ktid
else:
puppet = await pu.Puppet.get_by_mxid(mxid, create=False)
if puppet:
ktid = puppet.ktid
else:
continue
#mentions.append(
# Mention(user_id=str(ktid), offset=mention.offset, length=mention.length)
#)
else:
text = content.body
return SendParams(text=text, mentions=mentions, reply_to=reply_to)