442 lines
17 KiB
Rust

use crate::data::ModrinthCredentials;
use crate::event::FriendPayload;
use crate::event::emit::emit_friend;
use crate::state::tunnel::InternalTunnelSocket;
use crate::state::{ProcessManager, Profile, TunnelSocket};
use crate::util::fetch::{FetchSemaphore, fetch_advanced, fetch_json};
use ariadne::ids::UserId;
use ariadne::networking::message::{
ClientToServerMessage, ServerToClientMessage,
};
use ariadne::users::UserStatus;
use async_tungstenite::WebSocketStream;
use async_tungstenite::tokio::{ConnectStream, connect_async};
use async_tungstenite::tungstenite::Message;
use async_tungstenite::tungstenite::client::IntoClientRequest;
use bytes::Bytes;
use chrono::{DateTime, Utc};
use dashmap::DashMap;
use either::Either;
use futures::stream::SplitSink;
use futures::{SinkExt, StreamExt};
use reqwest::Method;
use reqwest::header::HeaderValue;
use serde::{Deserialize, Serialize};
use std::net::SocketAddr;
use std::ops::Deref;
use std::sync::Arc;
use tokio::io::{AsyncReadExt, AsyncWriteExt};
use tokio::net::TcpStream;
use tokio::net::tcp::OwnedReadHalf;
use tokio::sync::{Mutex, RwLock};
use uuid::Uuid;
pub(super) type WriteSocket =
Arc<RwLock<Option<SplitSink<WebSocketStream<ConnectStream>, Message>>>>;
pub(super) type TunnelSockets = Arc<DashMap<Uuid, Arc<InternalTunnelSocket>>>;
pub struct FriendsSocket {
write: WriteSocket,
user_statuses: Arc<DashMap<UserId, UserStatus>>,
tunnel_sockets: TunnelSockets,
}
#[derive(Deserialize, Serialize)]
pub struct UserFriend {
pub id: String,
pub friend_id: String,
pub accepted: bool,
pub created: DateTime<Utc>,
}
impl Default for FriendsSocket {
fn default() -> Self {
Self::new()
}
}
impl FriendsSocket {
pub fn new() -> Self {
Self {
write: Arc::new(RwLock::new(None)),
user_statuses: Arc::new(DashMap::new()),
tunnel_sockets: Arc::new(DashMap::new()),
}
}
#[tracing::instrument(skip_all)]
pub async fn connect(
&self,
exec: impl sqlx::Executor<'_, Database = sqlx::Sqlite> + Copy,
semaphore: &FetchSemaphore,
process_manager: &ProcessManager,
) -> crate::Result<()> {
let credentials =
ModrinthCredentials::get_and_refresh(exec, semaphore).await?;
if let Some(credentials) = credentials {
let mut request = format!(
"{}_internal/launcher_socket?code={}",
env!("MODRINTH_SOCKET_URL"),
credentials.session
)
.into_client_request()?;
let user_agent = format!(
"modrinth/theseus/{} (support@modrinth.com)",
env!("CARGO_PKG_VERSION")
);
request.headers_mut().insert(
"User-Agent",
HeaderValue::from_str(&user_agent).unwrap(),
);
let res = connect_async(request).await;
match res {
Ok((socket, _)) => {
tracing::info!("Connected to friends socket");
let (write, read) = socket.split();
{
let mut write_lock = self.write.write().await;
*write_lock = Some(write);
}
if let Some(process) = process_manager.get_all().first() {
let profile =
Profile::get(&process.profile_path, exec).await?;
if let Some(profile) = profile {
let _ =
self.update_status(Some(profile.name)).await;
}
}
let write_handle = self.write.clone();
let statuses = self.user_statuses.clone();
let sockets = self.tunnel_sockets.clone();
tokio::spawn(async move {
let mut read_stream = read;
while let Some(msg_result) = read_stream.next().await {
match msg_result {
Ok(msg) => {
let server_message = match msg {
Message::Text(text) => {
ServerToClientMessage::deserialize(
Either::Left(&text),
)
.ok()
}
Message::Binary(bytes) => {
ServerToClientMessage::deserialize(
Either::Right(&bytes),
)
.ok()
}
Message::Ping(bytes) => {
if let Some(write) = write_handle
.write()
.await
.as_mut()
{
let _ = write
.send(Message::Pong(bytes))
.await;
}
continue;
}
Message::Pong(_)
| Message::Frame(_) => continue,
Message::Close(_) => break,
};
if let Some(server_message) = server_message
{
match server_message {
ServerToClientMessage::StatusUpdate { status } => {
statuses.insert(status.user_id, status.clone());
let _ = emit_friend(FriendPayload::StatusUpdate { user_status: status }).await;
},
ServerToClientMessage::UserOffline { id } => {
statuses.remove(&id);
let _ = emit_friend(FriendPayload::UserOffline { id }).await;
}
ServerToClientMessage::FriendStatuses { statuses: new_statuses } => {
statuses.clear();
new_statuses.into_iter().for_each(|status| {
statuses.insert(status.user_id, status);
});
let _ = emit_friend(FriendPayload::StatusSync).await;
}
ServerToClientMessage::FriendRequest { from } => {
let _ = emit_friend(FriendPayload::FriendRequest { from }).await;
}
ServerToClientMessage::FriendRequestRejected { .. } => {}, // TODO
ServerToClientMessage::FriendSocketListening { .. } => {}, // TODO
ServerToClientMessage::FriendSocketStoppedListening { .. } => {}, // TODO
ServerToClientMessage::SocketConnected { to_socket, new_socket } => {
if let Some(connected_to) = sockets.get(&to_socket) {
if let InternalTunnelSocket::Listening(local_addr) = *connected_to.value().clone() {
if let Ok(new_stream) = TcpStream::connect(local_addr).await {
let (read, write) = new_stream.into_split();
sockets.insert(new_socket, Arc::new(InternalTunnelSocket::Connected(Mutex::new(write))));
Self::socket_read_loop(write_handle.clone(), read, new_socket);
continue;
}
}
}
let _ = Self::send_message(&write_handle, ClientToServerMessage::SocketClose { socket: new_socket }).await;
},
ServerToClientMessage::SocketClosed { socket } => {
sockets.remove_if(&socket, |_, x| matches!(*x.clone(), InternalTunnelSocket::Connected(_)));
},
ServerToClientMessage::SocketData { socket, data } => {
if let Some(mut socket) = sockets.get_mut(&socket) {
if let InternalTunnelSocket::Connected(ref stream) = *socket.value_mut().clone() {
let _ = stream.lock().await.write_all(&data).await;
}
}
},
}
}
}
Err(e) => {
tracing::error!(
"Error handling message from websocket server: {:?}",
e
);
}
}
}
let mut w = write_handle.write().await;
*w = None;
});
}
Err(e) => {
tracing::error!(
"Error connecting to friends socket: {e:?}"
);
return Err(crate::Error::from(e));
}
}
}
Ok(())
}
#[tracing::instrument(skip_all)]
pub async fn socket_loop() -> crate::Result<()> {
let state = crate::State::get().await?;
tokio::task::spawn(async move {
let mut last_connection = Utc::now();
let mut last_ping = Utc::now();
loop {
let connected = state.friends_socket.is_connected().await;
if !connected
&& Utc::now().signed_duration_since(last_connection)
> chrono::Duration::seconds(30)
{
last_connection = Utc::now();
last_ping = Utc::now();
let _ = state
.friends_socket
.connect(
&state.pool,
&state.api_semaphore,
&state.process_manager,
)
.await;
} else if connected
&& Utc::now().signed_duration_since(last_ping)
> chrono::Duration::seconds(10)
{
last_ping = Utc::now();
let mut write = state.friends_socket.write.write().await;
if let Some(write) = write.as_mut() {
let _ = write.send(Message::Ping(Bytes::new())).await;
}
}
tokio::time::sleep(std::time::Duration::from_secs(1)).await;
}
});
Ok(())
}
#[tracing::instrument(skip(self))]
pub async fn disconnect(&self) -> crate::Result<()> {
let mut write_lock = self.write.write().await;
if let Some(ref mut write_half) = *write_lock {
write_half.close().await?;
*write_lock = None;
}
Ok(())
}
#[tracing::instrument(skip(self))]
pub async fn update_status(
&self,
profile_name: Option<String>,
) -> crate::Result<()> {
Self::send_message(
&self.write,
ClientToServerMessage::StatusUpdate { profile_name },
)
.await
}
#[tracing::instrument(skip_all)]
pub async fn friends(
exec: impl sqlx::Executor<'_, Database = sqlx::Sqlite> + Copy,
semaphore: &FetchSemaphore,
) -> crate::Result<Vec<UserFriend>> {
fetch_json(
Method::GET,
concat!(env!("MODRINTH_API_URL_V3"), "friends"),
None,
None,
semaphore,
exec,
)
.await
}
#[tracing::instrument(skip(self))]
pub fn friend_statuses(&self) -> Vec<UserStatus> {
self.user_statuses
.iter()
.map(|x| x.value().clone())
.collect()
}
#[tracing::instrument(skip(exec, semaphore))]
pub async fn add_friend(
user_id: &str,
exec: impl sqlx::Executor<'_, Database = sqlx::Sqlite> + Copy,
semaphore: &FetchSemaphore,
) -> crate::Result<()> {
fetch_advanced(
Method::POST,
&format!("{}friend/{user_id}", env!("MODRINTH_API_URL_V3")),
None,
None,
None,
None,
semaphore,
exec,
)
.await?;
Ok(())
}
#[tracing::instrument(skip(exec, semaphore))]
pub async fn remove_friend(
user_id: &str,
exec: impl sqlx::Executor<'_, Database = sqlx::Sqlite> + Copy,
semaphore: &FetchSemaphore,
) -> crate::Result<()> {
fetch_advanced(
Method::DELETE,
&format!("{}friend/{user_id}", env!("MODRINTH_API_URL_V3")),
None,
None,
None,
None,
semaphore,
exec,
)
.await?;
Ok(())
}
#[tracing::instrument(skip(self))]
pub async fn open_port(&self, port: u16) -> crate::Result<TunnelSocket> {
let socket_id = Uuid::new_v4();
let socket = self.tunnel_sockets.entry(socket_id).insert(Arc::new(
InternalTunnelSocket::Listening(SocketAddr::new(
"127.0.0.1".parse().unwrap(),
port,
)),
));
Self::send_message(
&self.write,
ClientToServerMessage::SocketListen { socket: socket_id },
)
.await?;
self.create_tunnel_socket(socket_id, socket)
}
pub async fn is_connected(&self) -> bool {
self.write.read().await.is_some()
}
fn create_tunnel_socket(
&self,
socket_id: Uuid,
socket: impl Deref<Target = Arc<InternalTunnelSocket>>,
) -> crate::Result<TunnelSocket> {
Ok(TunnelSocket {
socket_id,
write: self.write.clone(),
sockets: self.tunnel_sockets.clone(),
internal: socket.clone(),
})
}
fn socket_read_loop(
write: WriteSocket,
mut read_half: OwnedReadHalf,
socket_id: Uuid,
) {
tokio::spawn(async move {
let mut read_buffer = [0u8; 8192];
loop {
match read_half.read(&mut read_buffer).await {
Ok(0) | Err(_) => break,
Ok(n) => {
let _ = Self::send_message(
&write,
ClientToServerMessage::SocketSend {
socket: socket_id,
data: read_buffer[..n].to_vec(),
},
)
.await;
}
};
}
});
}
#[tracing::instrument(skip(write))]
pub(super) async fn send_message(
write: &WriteSocket,
message: ClientToServerMessage,
) -> crate::Result<()> {
let serialized = match message.serialize()? {
Either::Left(text) => Message::text(text),
Either::Right(bytes) => Message::binary(bytes),
};
let mut write_lock = write.write().await;
if let Some(ref mut write_half) = *write_lock {
write_half.send(serialized).await?;
}
Ok(())
}
}