mautrix-telegram/mautrix_telegram/formatter/from_matrix/parser.py

93 lines
3.7 KiB
Python

# mautrix-telegram - A Matrix-Telegram puppeting bridge
# Copyright (C) 2021 Tulir Asokan
#
# 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
import logging
from telethon import TelegramClient
from mautrix.types import RoomID, UserID
from mautrix.util.formatter import HTMLNode, MatrixParser as BaseMatrixParser, RecursionContext
from mautrix.util.logging import TraceLogger
from ... import portal as po, puppet as pu, user as u
from .telegram_message import TelegramEntityType, TelegramMessage
log: TraceLogger = logging.getLogger("mau.fmt.mx")
class MatrixParser(BaseMatrixParser[TelegramMessage]):
e = TelegramEntityType
fs = TelegramMessage
client: TelegramClient
def __init__(self, client: TelegramClient) -> None:
self.client = client
async def custom_node_to_fstring(
self, node: HTMLNode, ctx: RecursionContext
) -> TelegramMessage | None:
if node.tag == "command":
msg = await self.tag_aware_parse_node(node, ctx)
return msg.prepend("/").format(TelegramEntityType.COMMAND)
return None
async def user_pill_to_fstring(self, msg: TelegramMessage, user_id: UserID) -> TelegramMessage:
user = await pu.Puppet.get_by_mxid(user_id) or await u.User.get_by_mxid(
user_id, create=False
)
if not user:
return msg
if user.tg_username:
return TelegramMessage(f"@{user.tg_username}").format(TelegramEntityType.MENTION)
elif user.tgid:
displayname = user.plain_displayname or msg.text
msg = TelegramMessage(displayname)
try:
input_entity = await self.client.get_input_entity(user.tgid)
except (ValueError, TypeError) as e:
log.trace(f"Dropping mention of {user.tgid}: {e}")
else:
msg = msg.format(TelegramEntityType.MENTION_NAME, user_id=input_entity)
return msg
async def url_to_fstring(self, msg: TelegramMessage, url: str) -> TelegramMessage:
if url == msg.text:
return msg.format(self.e.URL)
else:
return msg.format(self.e.INLINE_URL, url=url)
async def room_pill_to_fstring(self, msg: TelegramMessage, room_id: RoomID) -> TelegramMessage:
username = po.Portal.get_username_from_mx_alias(room_id)
portal = await po.Portal.find_by_username(username)
if portal and portal.username:
return TelegramMessage(f"@{portal.username}").format(TelegramEntityType.MENTION)
async def header_to_fstring(self, node: HTMLNode, ctx: RecursionContext) -> TelegramMessage:
children = await self.node_to_fstrings(node, ctx)
length = int(node.tag[1])
prefix = "#" * length + " "
return TelegramMessage.join(children, "").prepend(prefix).format(TelegramEntityType.BOLD)
async def color_to_fstring(self, msg: TelegramMessage, color: str) -> TelegramMessage:
return msg
async def spoiler_to_fstring(self, msg: TelegramMessage, reason: str) -> TelegramMessage:
msg = msg.format(self.e.SPOILER)
if reason:
msg = msg.prepend(f"{reason}: ")
return msg