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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 { Payload, WebSocket } from "@spacebar/gateway";
import { genVoiceToken } from "../util/SessionUtils";
import { check } from "./instanceOf";
import {
Config,
emitEvent,
Guild,
Member,
VoiceServerUpdateEvent,
VoiceState,
VoiceStateUpdateEvent,
VoiceStateUpdateSchema,
Region,
} from "@spacebar/util";
// TODO: check if a voice server is setup
// Notice: Bot users respect the voice channel's user limit, if set.
// When the voice channel is full, you will not receive the Voice State Update or Voice Server Update events in response to your own Voice State Update.
// Having MANAGE_CHANNELS permission bypasses this limit and allows you to join regardless of the channel being full or not.
export async function onVoiceStateUpdate(this: WebSocket, data: Payload) {
check.call(this, VoiceStateUpdateSchema, data.d);
const body = data.d as VoiceStateUpdateSchema;
let voiceState: VoiceState;
try {
voiceState = await VoiceState.findOneOrFail({
where: { user_id: this.user_id },
});
if (
voiceState.session_id !== this.session_id &&
body.channel_id === null
) {
//Should we also check guild_id === null?
//changing deaf or mute on a client that's not the one with the same session of the voicestate in the database should be ignored
return;
}
//If a user change voice channel between guild we should send a left event first
if (
voiceState.guild_id !== body.guild_id &&
voiceState.session_id === this.session_id
) {
await emitEvent({
event: "VOICE_STATE_UPDATE",
data: { ...voiceState, channel_id: null },
guild_id: voiceState.guild_id,
});
}
//The event send by Discord's client on channel leave has both guild_id and channel_id as null
if (body.guild_id === null) body.guild_id = voiceState.guild_id;
voiceState.assign(body);
} catch (error) {
voiceState = VoiceState.create({
...body,
user_id: this.user_id,
deaf: false,
mute: false,
suppress: false,
});
}
// 'Fix' for this one voice state error. TODO: Find out why this is sent
// It seems to be sent on client load,
// so maybe its trying to find which server you were connected to before disconnecting, if any?
if (body.guild_id == null) {
return;
}
//TODO the member should only have these properties: hoisted_role, deaf, joined_at, mute, roles, user
//TODO the member.user should only have these properties: avatar, discriminator, id, username
//TODO this may fail
voiceState.member = await Member.findOneOrFail({
where: { id: voiceState.user_id, guild_id: voiceState.guild_id },
relations: ["user", "roles"],
});
//If the session changed we generate a new token
if (voiceState.session_id !== this.session_id)
voiceState.token = genVoiceToken();
voiceState.session_id = this.session_id;
// eslint-disable-next-line @typescript-eslint/no-unused-vars
const { id, ...newObj } = voiceState;
await Promise.all([
voiceState.save(),
emitEvent({
event: "VOICE_STATE_UPDATE",
data: newObj,
guild_id: voiceState.guild_id,
} as VoiceStateUpdateEvent),
]);
//If it's null it means that we are leaving the channel and this event is not needed
if (voiceState.channel_id !== null) {
const guild = await Guild.findOne({
where: { id: voiceState.guild_id },
});
const regions = Config.get().regions;
let guildRegion: Region;
if (guild && guild.region) {
guildRegion = regions.available.filter(
(r) => r.id === guild.region,
)[0];
} else {
guildRegion = regions.available.filter(
(r) => r.id === regions.default,
)[0];
}
await emitEvent({
event: "VOICE_SERVER_UPDATE",
data: {
token: voiceState.token,
guild_id: voiceState.guild_id,
endpoint: guildRegion.endpoint,
},
guild_id: voiceState.guild_id,
} as VoiceServerUpdateEvent);
}
}
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