samw
/
discosip
1
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Add discord voice basics 

Joins a voice channel when a call is running, leaves when ended
Autoformat
This commit is contained in:
Sam W 2022-07-17 13:47:27 +01:00
parent 6042cc7a82
commit 26c481deba
4 changed files with 333 additions and 573 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

698
Cargo.lock generated
View File

File diff suppressed because it is too large Load Diff

4
Cargo.toml
View File

@ -10,13 +10,13 @@ rand = "0.8.5"
rsip = "0.4.0"
rtp = "0.6.5"
sdp-rs = "0.2.1"
songbird = { version = "0.2.2", features = ["builtin-queue"]}
songbird = { git = "https://github.com/serenity-rs/songbird", branch = "next", default_features = false, features = ["driver", "twilight-rustls", "zlib-stock"] }
tokio = { version = "1.19.2", features = ["full"] }
tokio-stream = "0.1.9"
tokio-util = { version = "0.7.3", features = ["net", "codec"] }
tracing = "0.1.35"
tracing-subscriber = "0.3.14"
twilight-gateway = "0.11.1"
twilight-http = "0.11.1"
twilight-http = { version = "0.11.1"}
twilight-model = "0.11.3"
webrtc-util = "0.5.4"

80
src/discord.rs
View File

@ -2,6 +2,7 @@ use crate::StdErr;
use futures::stream::StreamExt;
use rand::seq::SliceRandom;
use rand::{prelude::ThreadRng, thread_rng};
use songbird::Songbird;
use std::cell::RefCell;
use std::sync::Arc;
use tokio::select;
@ -21,18 +22,37 @@ use twilight_model::{
thread_local!(static RNG: RefCell<ThreadRng> = RefCell::new(thread_rng()));
const GREETINGS: &'static [&'static str] =
&["You rung?", "Hello there", "Right back atcha", "Yes?"];
const GREETINGS: &'static [&'static str] = &[
"You rung?",
"Hello there",
"Right back atcha",
"Yes?",
"Wow, rude",
"Go stick your head in a pig",
];
#[derive(Debug)]
pub struct Call {
pub guild_id: u64,
pub channel_id: u64,
pub done: mpsc::Receiver<()>,
}
struct State {
songbird: Songbird,
client: Client,
}
pub async fn run_discord(
token: &str,
mut calls: mpsc::Receiver<Call>,
mut shutdown: broadcast::Receiver<()>,
_done: mpsc::Sender<()>,
) -> StdErr<()> {
event!(Level::INFO, "Starting...");
let (cluster, mut events) = Cluster::builder(
token.to_owned(),
Intents::GUILD_MESSAGES | Intents::MESSAGE_CONTENT,
Intents::GUILD_MESSAGES | Intents::MESSAGE_CONTENT | Intents::GUILD_VOICE_STATES,
)
.presence(UpdatePresencePayload::new(
vec![MinimalActivity {
@ -47,21 +67,32 @@ pub async fn run_discord(
)?)
.build()
.await?;
let cluster = Arc::new(cluster);
let cluster_spawn = Arc::clone(&cluster);
let client = Client::new(token.to_owned());
let me = client.current_user().exec().await?.model().await?.id;
let sb = Songbird::twilight(cluster.clone(), me);
let state = Arc::new(State {
songbird: sb,
client,
});
let cluster_spawn = cluster.clone();
tokio::spawn(async move { cluster_spawn.up().await });
let client = Arc::new(Client::new(token.to_owned()));
loop {
select!(
Some((shard_id, ev)) = events.next() => {
let client = client.clone();
state.songbird.process(&ev).await;
let state_ = state.clone();
tokio::spawn(async move {
if let Err(e) = handle_event(ev, shard_id, client).await {
if let Err(e) = handle_event(ev, shard_id, state_, me).await {
event!(Level::ERROR, err=?e, "Error handling discord event");
}
});
},
Some(call) = calls.recv() => {
let state_ = state.clone();
tokio::spawn(handle_call(call, state_));
},
_ = shutdown.recv() => {
event!(Level::INFO, "Shutting down...");
cluster.down();
@ -74,18 +105,41 @@ pub async fn run_discord(
Ok(())
}
#[instrument(skip(call, state))]
async fn handle_call(mut call: Call, state: Arc<State>) {
let (_handle, success) = state.songbird.join(call.guild_id, call.channel_id).await;
match success {
Ok(()) => event!(Level::INFO, %call.guild_id, %call.channel_id, "Joined channel"),
Err(err) => {
event!(Level::ERROR, %call.guild_id, %call.channel_id, %err, "Error joining channel")
}
}
let _ = call.done.recv().await;
match state.songbird.leave(call.guild_id).await {
Ok(()) => event!(Level::INFO, %call.guild_id, %call.channel_id, "Left channel"),
Err(err) => {
event!(Level::INFO, %call.guild_id, %call.channel_id, %err, "Error leaving channel")
}
}
}
fn mentions(msg: &Message, us: Id<UserMarker>) -> bool {
msg.mentions.iter().filter(|m| m.id == us).next().is_some()
}
#[instrument(skip(client))]
async fn handle_event(ev: Event, shard_id: u64, client: Arc<Client>) -> StdErr<()> {
let me = client.current_user().exec().await?.model().await?;
#[instrument(skip(state))]
async fn handle_event(
ev: Event,
shard_id: u64,
state: Arc<State>,
me: Id<UserMarker>,
) -> StdErr<()> {
match ev {
Event::MessageCreate(msg) => {
if mentions(&msg.0, me.id) {
if mentions(&msg.0, me) {
let greet = RNG.with(|rng| GREETINGS.choose(&mut *rng.borrow_mut()).unwrap());
client
state
.client
.create_message(msg.channel_id)
.content(greet)?
.exec()

118
src/main.rs
View File

@ -1,18 +1,18 @@
use futures::{sink::Sink, SinkExt};
use tokio::sync::{broadcast, mpsc};
use tokio::signal;
use rsip::common::method::Method as SipMethod;
use rsip::headers::header::Header as SipHeader;
use rsip::message::{request::Request, response::Response, SipMessage};
use sdp_rs::lines::media::{MediaType, ProtoType};
use sdp_rs::lines::{attribute::Rtpmap, Attribute, Media};
use sdp_rs::{MediaDescription, SessionDescription};
use std::net::SocketAddr;
use std::str;
use std::env;
use std::net::IpAddr;
use std::net::SocketAddr;
use std::str;
use std::time::Duration;
use tokio::net::UdpSocket;
use tokio::signal;
use tokio::sync::{broadcast, mpsc};
use tokio::time::sleep;
use tokio_stream::StreamExt;
use tokio_util::{
@ -20,17 +20,15 @@ use tokio_util::{
udp::UdpFramed,
};
use tracing::{event, instrument, Level};
use songbird::driver::Driver;
mod codecs;
use codecs::{SipCodec, RtpCodec};
use codecs::{RtpCodec, SipCodec};
mod discord;
const SIP_PORT: u16 = 5060;
const BIND_ADDR: &str = "0.0.0.0"; // for now
type StdErr<T> = Result<T, Box<dyn std::error::Error>>;
struct Server {}
@ -42,8 +40,12 @@ struct CurrentCall {
}
impl Server {
#[instrument(skip(shutdown, _done))]
async fn run_sip(mut shutdown: broadcast::Receiver<()>, _done: mpsc::Sender<()>) -> StdErr<()> {
#[instrument(skip(call_tx, shutdown, _done))]
async fn run_sip(
call_tx: mpsc::Sender<discord::Call>,
mut shutdown: broadcast::Receiver<()>,
_done: mpsc::Sender<()>,
) -> StdErr<()> {
event!(Level::INFO, "Starting...");
let socket = UdpSocket::bind(format!("{}:{}", BIND_ADDR, SIP_PORT)).await?;
let mut framed = UdpFramed::new(socket, SipCodec {});
@ -89,9 +91,10 @@ impl Server {
// remote's address. This means that `handle_call`
// doesn't need to be aware of the remote at all.
let res_tx = response_tx.clone();
let call_tx = call_tx.clone();
tokio::spawn(async move {
let res_tx = PollSender::new(res_tx).with::<_, _, _, PollSendError<_>>(|res| {futures::future::ready(Ok((res, remote)))});
Self::handle_call(&req, res_tx, req_rx).await.unwrap();
Self::handle_call(&req, res_tx, req_rx, call_tx).await.unwrap();
});
}
Some(call) => {
@ -158,12 +161,16 @@ impl Server {
if r.encoding_name == "opus" {
let prefix = format!("{} ", r.payload_type);
// Find the matching fmtp if there is one
let fmtp = md.attributes.iter().filter_map(|a| match a{
let fmtp = md
.attributes
.iter()
.filter_map(|a| match a {
Attribute::Other(fmt, Some(params)) if fmt == "fmtp" => {
params.strip_prefix(&prefix)
},
_ => None
}).next();
}
_ => None,
})
.next();
Some((r.clone(), fmtp))
} else {
None
@ -178,13 +185,14 @@ impl Server {
// Handle a call
#[instrument(
level = "info",
skip(invite, responses, requests)
skip(invite, responses, requests, call_tx)
fields()
)]
async fn handle_call<T: Sink<Response> + std::marker::Unpin>(
invite: &Request,
mut responses: T,
mut requests: mpsc::Receiver<Request>,
call_tx: mpsc::Sender<discord::Call>,
) -> StdErr<()> {
let mut base_res = Response::default();
// Copy headers from the invite
@ -230,7 +238,7 @@ impl Server {
let socket = UdpSocket::bind(format!("{}:0", BIND_ADDR)).await?;
let rtp_port = socket.local_addr()?.port();
event!(Level::INFO, rtp_port, "Bound RTP port");
let mut rtp_framed = UdpFramed::new(socket, RtpCodec{});
let mut rtp_framed = UdpFramed::new(socket, RtpCodec {});
let mut res = base_res.clone();
res.status_code = 180.into();
responses.send(res).await;
@ -240,8 +248,11 @@ impl Server {
res.status_code = 200.into();
// TODO: fix this lmao
let ip: IpAddr = "10.23.2.134".parse()?;
res.headers.push(SipHeader::Contact(format!("sip:{}:{}", ip, SIP_PORT).into()));
res.headers.push(SipHeader::ContentType("application/sdp".into()));
res.headers.push(SipHeader::Contact(
format!("sip:{}:{}", ip, SIP_PORT).into(),
));
res.headers
.push(SipHeader::ContentType("application/sdp".into()));
let md = MediaDescription {
media: Media {
media: MediaType::Audio,
@ -250,19 +261,26 @@ impl Server {
proto: ProtoType::RtpAvp,
fmt: "101".into(),
},
connections: vec!(sdp_rs::lines::Connection{
connections: vec![sdp_rs::lines::Connection {
nettype: "IN".into(),
addrtype: "IP4".into(),
connection_address: ip.into(),
}),
bandwidths: vec!(sdp_rs::lines::Bandwidth{bwtype:"TIAS".into(), bandwidth: 64000}),
attributes: vec!(sdp_rs::lines::Attribute::Other("rtpmap".into(), Some("101 opus/48000/2".into()))),
}],
bandwidths: vec![sdp_rs::lines::Bandwidth {
bwtype: "TIAS".into(),
bandwidth: 64000,
}],
attributes: vec![sdp_rs::lines::Attribute::Other(
"rtpmap".into(),
Some("101 opus/48000/2".into()),
)],
info: None,
key: None,
}.into();
}
.into();
let sd: String = SessionDescription {
version: sdp_rs::lines::Version::V0,
origin: sdp_rs::lines::Origin{
origin: sdp_rs::lines::Origin {
username: "-".into(),
sess_id: "foobar".into(),
sess_version: "foobar".into(),
@ -273,26 +291,37 @@ impl Server {
session_name: "discosip".to_owned().into(),
session_info: None,
uri: None,
emails: vec!(),
phones: vec!(),
emails: vec![],
phones: vec![],
connection: None,
bandwidths: vec!(sdp_rs::lines::Bandwidth{bwtype:"AS".into(), bandwidth: 84}),
times: vec!(sdp_rs::Time{
active: sdp_rs::lines::Active{
start: 0,
stop: 0,
},
repeat: vec!(),
bandwidths: vec![sdp_rs::lines::Bandwidth {
bwtype: "AS".into(),
bandwidth: 84,
}],
times: vec![sdp_rs::Time {
active: sdp_rs::lines::Active { start: 0, stop: 0 },
repeat: vec![],
zone: None,
}).try_into()?,
}]
.try_into()?,
key: None,
attributes: vec!(),
media_descriptions: vec!(md),
}.to_string();
attributes: vec![],
media_descriptions: vec![md],
}
.to_string();
res.body = sd.as_bytes().into();
res.headers.push(SipHeader::ContentLength((res.body.len() as u32).into()));
res.headers
.push(SipHeader::ContentLength((res.body.len() as u32).into()));
responses.send(res).await;
// Discord
let (disc_done, disc_done_rx) = mpsc::channel(1);
let disc_call = discord::Call {
guild_id: env::var("DISCORD_GUILD")?.parse()?,
channel_id: env::var("DISCORD_CHANNEL")?.parse()?,
done: disc_done_rx,
};
call_tx.send(disc_call).await?;
loop {
tokio::select! {
@ -308,12 +337,12 @@ impl Server {
}
},
Some(rtp_frame) = rtp_framed.next() => {
event!(Level::INFO, "Got RTP Packet!");
Some(_) = rtp_framed.next() => {
//event!(Level::INFO, "Got RTP Packet!");
},
}
}
disc_done.send(()).await?;
event!(Level::INFO, "Call handler loop done.");
Ok(())
@ -327,12 +356,13 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
let (shutdown_tx, shutdown_rx_1) = broadcast::channel(1);
let (done_tx, mut done_rx) = mpsc::channel(1);
let done_2 = done_tx.clone();
tokio::spawn( async move {
discord::run_discord(&discord_token, shutdown_rx_1, done_tx.clone()).await;
let (call_tx, call_rx) = mpsc::channel(1);
tokio::spawn(async move {
discord::run_discord(&discord_token, call_rx, shutdown_rx_1, done_tx.clone()).await;
});
let sd_2 = shutdown_tx.subscribe();
tokio::spawn(async move {
Server::run_sip(sd_2, done_2).await;
Server::run_sip(call_tx, sd_2, done_2).await;
});
signal::ctrl_c().await?;