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/*
Fosscord: A FOSS re-implementation and extension of the Discord.com backend.
Copyright (C) 2023 Fosscord and Fosscord Contributors
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/>.
*/
import { Request, Response, Router } from "express";
import {
Channel,
ChannelRecipientAddEvent,
ChannelType,
DiscordApiErrors,
DmChannelDTO,
emitEvent,
PublicUserProjection,
Recipient,
User,
} from "@fosscord/util";
import { route } from "@fosscord/api";
const router: Router = Router();
router.put("/:user_id", route({}), async (req: Request, res: Response) => {
const { channel_id, user_id } = req.params;
const channel = await Channel.findOneOrFail({
where: { id: channel_id },
relations: ["recipients"],
});
if (channel.type !== ChannelType.GROUP_DM) {
const recipients = [
...(channel.recipients?.map((r) => r.user_id) || []),
user_id,
].unique();
const new_channel = await Channel.createDMChannel(
recipients,
req.user_id,
);
return res.status(201).json(new_channel);
} else {
if (channel.recipients?.map((r) => r.user_id).includes(user_id)) {
throw DiscordApiErrors.INVALID_RECIPIENT; //TODO is this the right error?
}
channel.recipients?.push(
Recipient.create({ channel_id: channel_id, user_id: user_id }),
);
await channel.save();
await emitEvent({
event: "CHANNEL_CREATE",
data: await DmChannelDTO.from(channel, [user_id]),
user_id: user_id,
});
await emitEvent({
event: "CHANNEL_RECIPIENT_ADD",
data: {
channel_id: channel_id,
user: await User.findOneOrFail({
where: { id: user_id },
select: PublicUserProjection,
}),
},
channel_id: channel_id,
} as ChannelRecipientAddEvent);
return res.sendStatus(204);
}
});
router.delete("/:user_id", route({}), async (req: Request, res: Response) => {
const { channel_id, user_id } = req.params;
const channel = await Channel.findOneOrFail({
where: { id: channel_id },
relations: ["recipients"],
});
if (
!(
channel.type === ChannelType.GROUP_DM &&
(channel.owner_id === req.user_id || user_id === req.user_id)
)
)
throw DiscordApiErrors.MISSING_PERMISSIONS;
if (!channel.recipients?.map((r) => r.user_id).includes(user_id)) {
throw DiscordApiErrors.INVALID_RECIPIENT; //TODO is this the right error?
}
await Channel.removeRecipientFromChannel(channel, user_id);
return res.sendStatus(204);
});
export default router;
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