Tulir Asokan
90 lines
3.6 KiB
Python
90 lines
3.6 KiB
Python
# mautrix-telegram - A Matrix-Telegram puppeting bridge
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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 List, Tuple, Optional
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from telethon.tl.types import TypeMessageEntity
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from mautrix.types import UserID, RoomID
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from mautrix.util.formatter import MatrixParser as BaseMatrixParser, RecursionContext
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from mautrix.util.formatter.html_reader_htmlparser import read_html, HTMLNode
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from ... import user as u, puppet as pu, portal as po
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from .telegram_message import TelegramMessage, TelegramEntityType
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ParsedMessage = Tuple[str, List[TypeMessageEntity]]
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def parse_html(input_html: str) -> ParsedMessage:
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msg = MatrixParser.parse(input_html)
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return msg.text, msg.telegram_entities
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class MatrixParser(BaseMatrixParser[TelegramMessage]):
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e = TelegramEntityType
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fs = TelegramMessage
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read_html = read_html
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@classmethod
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def custom_node_to_fstring(cls, node: HTMLNode, ctx: RecursionContext
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) -> Optional[TelegramMessage]:
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msg = cls.tag_aware_parse_node(node, ctx)
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if node.tag == "command":
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msg.format(TelegramEntityType.COMMAND)
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return None
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@classmethod
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def user_pill_to_fstring(cls, msg: TelegramMessage, user_id: UserID) -> TelegramMessage:
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user = (pu.Puppet.deprecated_sync_get_by_mxid(user_id)
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or u.User.get_by_mxid(user_id, create=False))
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if not user:
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return msg
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if user.username:
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return TelegramMessage(f"@{user.username}").format(TelegramEntityType.MENTION)
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elif user.tgid:
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displayname = user.plain_displayname or msg.text
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return TelegramMessage(displayname).format(TelegramEntityType.MENTION_NAME,
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user_id=user.tgid)
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return msg
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@classmethod
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def url_to_fstring(cls, msg: TelegramMessage, url: str) -> TelegramMessage:
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if url == msg.text:
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return msg.format(cls.e.URL)
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else:
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return msg.format(cls.e.INLINE_URL, url=url)
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@classmethod
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def room_pill_to_fstring(cls, msg: TelegramMessage, room_id: RoomID) -> TelegramMessage:
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username = po.Portal.get_username_from_mx_alias(room_id)
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portal = po.Portal.find_by_username(username)
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if portal and portal.username:
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return TelegramMessage(f"@{portal.username}").format(TelegramEntityType.MENTION)
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@classmethod
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def header_to_fstring(cls, node: HTMLNode, ctx: RecursionContext) -> TelegramMessage:
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children = cls.node_to_fstrings(node, ctx)
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length = int(node.tag[1])
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prefix = "#" * length + " "
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return TelegramMessage.join(children, "").prepend(prefix).format(TelegramEntityType.BOLD)
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@classmethod
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def blockquote_to_fstring(cls, node: HTMLNode, ctx: RecursionContext) -> TelegramMessage:
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msg = cls.tag_aware_parse_node(node, ctx)
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children = msg.trim().split("\n")
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children = [child.prepend("> ") for child in children]
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return TelegramMessage.join(children, "\n")
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