Tulir Asokan
96 lines
3.5 KiB
Python
96 lines
3.5 KiB
Python
# mautrix-telegram - A Matrix-Telegram puppeting bridge
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# Copyright (C) 2021 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 __future__ import annotations
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import base64
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import html
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from telethon.tl.functions.channels import GetSponsoredMessagesRequest
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from telethon.tl.types import Channel, InputChannel, PeerChannel, PeerUser, SponsoredMessage, User
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from mautrix.types import MessageType, TextMessageEventContent
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from .. import user as u
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from ..formatter import telegram_to_matrix
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async def get_sponsored_message(
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user: u.User,
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entity: InputChannel,
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) -> tuple[SponsoredMessage | None, int | None, Channel | User | None]:
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resp = await user.client(GetSponsoredMessagesRequest(entity))
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if len(resp.messages) == 0:
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return None, None, None
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msg = resp.messages[0]
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if isinstance(msg.from_id, PeerUser):
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entities = resp.users
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target_id = msg.from_id.user_id
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else:
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entities = resp.chats
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target_id = msg.from_id.channel_id
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try:
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entity = next(ent for ent in entities if ent.id == target_id)
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except StopIteration:
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entity = None
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return msg, target_id, entity
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async def make_sponsored_message_content(
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source: u.User, msg: SponsoredMessage, entity: Channel | User
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) -> TextMessageEventContent | None:
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content = await telegram_to_matrix(msg, source, require_html=True)
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content.external_url = f"https://t.me/{entity.username}"
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content.msgtype = MessageType.NOTICE
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sponsored_meta = {
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"random_id": base64.b64encode(msg.random_id).decode("utf-8"),
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}
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if isinstance(msg.from_id, PeerChannel):
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sponsored_meta["channel_id"] = msg.from_id.channel_id
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if getattr(msg, "channel_post", None) is not None:
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sponsored_meta["channel_post"] = msg.channel_post
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content.external_url += f"/{msg.channel_post}"
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action = "View Post"
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else:
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action = "View Channel"
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elif isinstance(msg.from_id, PeerUser):
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sponsored_meta["bot_id"] = msg.from_id.user_id
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if msg.start_param:
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content.external_url += f"?start={msg.start_param}"
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action = "View Bot"
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else:
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return None
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if isinstance(entity, User):
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name_parts = [entity.first_name, entity.last_name]
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sponsor_name = " ".join(x for x in name_parts if x)
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sponsor_name_html = f"<strong>{html.escape(sponsor_name)}</strong>"
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elif isinstance(entity, Channel):
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sponsor_name = entity.title
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sponsor_name_html = f"<strong>{html.escape(sponsor_name)}</strong>"
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else:
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sponsor_name = sponsor_name_html = "unknown entity"
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content["net.maunium.telegram.sponsored"] = sponsored_meta
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content.formatted_body += (
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f"<br/><br/>Sponsored message from {sponsor_name_html} "
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f"- <a href='{content.external_url}'>{action}</a>"
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)
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content.body += (
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f"\n\nSponsored message from {sponsor_name} - {action} at {content.external_url}"
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)
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return content
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