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/*
Spacebar: A FOSS re-implementation and extension of the Discord.com backend.
Copyright (C) 2023 Spacebar and Spacebar 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 { getIpAdress, route } from "@spacebar/api";
import {
Ban,
BanModeratorSchema,
BanRegistrySchema,
DiscordApiErrors,
GuildBanAddEvent,
GuildBanRemoveEvent,
Member,
User,
emitEvent,
} from "@spacebar/util";
import { Request, Response, Router } from "express";
import { HTTPError } from "lambert-server";
const router: Router = Router();
/* TODO: Deleting the secrets is just a temporary go-around. Views should be implemented for both safety and better handling. */
router.get(
"/",
route({ permission: "BAN_MEMBERS" }),
async (req: Request, res: Response) => {
const { guild_id } = req.params;
const bans = await Ban.find({ where: { guild_id: guild_id } });
const promisesToAwait: object[] = [];
const bansObj: object[] = [];
bans.filter((ban) => ban.user_id !== ban.executor_id); // pretend self-bans don't exist to prevent victim chasing
bans.forEach((ban) => {
promisesToAwait.push(User.getPublicUser(ban.user_id));
});
const bannedUsers: object[] = await Promise.all(promisesToAwait);
bans.forEach((ban, index) => {
const user = bannedUsers[index] as User;
bansObj.push({
reason: ban.reason,
user: {
username: user.username,
discriminator: user.discriminator,
id: user.id,
avatar: user.avatar,
public_flags: user.public_flags,
},
});
});
return res.json(bansObj);
},
);
router.get(
"/:user",
route({ permission: "BAN_MEMBERS" }),
async (req: Request, res: Response) => {
const { guild_id } = req.params;
const user_id = req.params.ban;
let ban = (await Ban.findOneOrFail({
where: { guild_id: guild_id, user_id: user_id },
})) as BanRegistrySchema;
if (ban.user_id === ban.executor_id) throw DiscordApiErrors.UNKNOWN_BAN;
// pretend self-bans don't exist to prevent victim chasing
/* Filter secret from registry. */
ban = ban as BanModeratorSchema;
delete ban.ip;
return res.json(ban);
},
);
router.put(
"/:user_id",
route({ requestBody: "BanCreateSchema", permission: "BAN_MEMBERS" }),
async (req: Request, res: Response) => {
const { guild_id } = req.params;
const banned_user_id = req.params.user_id;
if (
req.user_id === banned_user_id &&
banned_user_id === req.permission?.cache.guild?.owner_id
)
throw new HTTPError(
"You are the guild owner, hence can't ban yourself",
403,
);
if (req.permission?.cache.guild?.owner_id === banned_user_id)
throw new HTTPError("You can't ban the owner", 400);
const banned_user = await User.getPublicUser(banned_user_id);
const ban = Ban.create({
user_id: banned_user_id,
guild_id: guild_id,
ip: getIpAdress(req),
executor_id: req.user_id,
reason: req.body.reason, // || otherwise empty
});
await Promise.all([
Member.removeFromGuild(banned_user_id, guild_id),
ban.save(),
emitEvent({
event: "GUILD_BAN_ADD",
data: {
guild_id: guild_id,
user: banned_user,
},
guild_id: guild_id,
} as GuildBanAddEvent),
]);
return res.json(ban);
},
);
router.put(
"/@me",
route({ requestBody: "BanCreateSchema" }),
async (req: Request, res: Response) => {
const { guild_id } = req.params;
const banned_user = await User.getPublicUser(req.params.user_id);
if (req.permission?.cache.guild?.owner_id === req.params.user_id)
throw new HTTPError(
"You are the guild owner, hence can't ban yourself",
403,
);
const ban = Ban.create({
user_id: req.params.user_id,
guild_id: guild_id,
ip: getIpAdress(req),
executor_id: req.params.user_id,
reason: req.body.reason, // || otherwise empty
});
await Promise.all([
Member.removeFromGuild(req.user_id, guild_id),
ban.save(),
emitEvent({
event: "GUILD_BAN_ADD",
data: {
guild_id: guild_id,
user: banned_user,
},
guild_id: guild_id,
} as GuildBanAddEvent),
]);
return res.json(ban);
},
);
router.delete(
"/:user_id",
route({ permission: "BAN_MEMBERS" }),
async (req: Request, res: Response) => {
const { guild_id, user_id } = req.params;
const ban = await Ban.findOneOrFail({
where: { guild_id: guild_id, user_id: user_id },
});
if (ban.user_id === ban.executor_id) throw DiscordApiErrors.UNKNOWN_BAN;
// make self-bans irreversible and hide them from view to avoid victim chasing
const banned_user = await User.getPublicUser(user_id);
await Promise.all([
Ban.delete({
user_id: user_id,
guild_id,
}),
emitEvent({
event: "GUILD_BAN_REMOVE",
data: {
guild_id,
user: banned_user,
},
guild_id,
} as GuildBanRemoveEvent),
]);
return res.status(204).send();
},
);
export default router;
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