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use std::io;
use async_trait::async_trait;
use infrarust_config::LogType;
use infrarust_protocol::types::VarInt;
use tracing::{debug, error};
use crate::{
core::{actors::server::MinecraftServer, event::MinecraftCommunication},
network::{connection::PossibleReadValue, packet::PacketCodec},
proxy_modes::{
ServerProxyModeHandler,
client_only::{ClientOnlyMessage, prepare_server_handshake},
},
};
use super::ClientOnlyMode;
#[async_trait]
impl ServerProxyModeHandler<MinecraftCommunication<ClientOnlyMessage>> for ClientOnlyMode {
async fn handle_external_server(
&self,
data: PossibleReadValue,
actor: &mut MinecraftServer<MinecraftCommunication<ClientOnlyMessage>>,
) -> io::Result<()> {
if let PossibleReadValue::Packet(data) = data {
let _ = actor
.client_sender
.send(MinecraftCommunication::Packet(data))
.await;
}
Ok(())
}
async fn handle_internal_server(
&self,
message: MinecraftCommunication<ClientOnlyMessage>,
actor: &mut MinecraftServer<MinecraftCommunication<ClientOnlyMessage>>,
) -> io::Result<()> {
match message {
MinecraftCommunication::Packet(data) => {
debug!(
log_type = LogType::ProxyMode.as_str(),
"Received packet from server: {:?}", data
);
actor
.server_request
.as_mut()
.unwrap()
.server_conn
.as_mut()
.unwrap()
.write_packet(&data)
.await?;
}
MinecraftCommunication::Shutdown => {
debug!(
log_type = LogType::ProxyMode.as_str(),
"Shutting down server (Received Shutdown message)"
);
let _ = actor
.server_request
.as_mut()
.unwrap()
.server_conn
.as_mut()
.unwrap()
.close()
.await;
}
_ => {}
}
Ok(())
}
async fn initialize_server(
&self,
actor: &mut MinecraftServer<MinecraftCommunication<ClientOnlyMessage>>,
) -> io::Result<()> {
debug!(
log_type = LogType::ProxyMode.as_str(),
"Initializing server offline proxy mode"
);
let mut server_initialised = false;
if let Some(request) = actor.server_request.as_mut() {
if let Some(conn) = request.server_conn.as_mut() {
let client_handshake = &request.read_packets[0];
let server_addr = conn.peer_addr().await;
let login_start = &request.read_packets[1];
// REFACTO : unwrapped it but might do something better
let server_handshake =
prepare_server_handshake(client_handshake, &server_addr.unwrap())?;
conn.write_packet(&server_handshake).await?;
conn.write_packet(login_start).await?;
while !server_initialised {
match conn.read_packet().await? {
packet if packet.id == 0x03 => {
// Set Compression
let threshold = packet.decode::<VarInt>();
if threshold.is_err() {
error!(
log_type = LogType::ProxyMode.as_str(),
"Failed to decode compression threshold"
);
return Err(io::Error::new(
io::ErrorKind::InvalidData,
"Failed to decode compression threshold",
));
}
let threshold = threshold.unwrap();
if threshold.0 >= 0 {
debug!(
log_type = LogType::ProxyMode.as_str(),
"Received compression config from server, threshold: {}",
threshold.0
);
conn.enable_compression(threshold.0);
match actor
.client_sender
.send(MinecraftCommunication::CustomData(
ClientOnlyMessage::ServerThreshold(threshold),
))
.await
{
Ok(_) => {}
Err(e) => {
error!(
log_type = LogType::ProxyMode.as_str(),
"Failed to send ServerThreshold message to client: {}",
e
);
}
}
}
}
packet if packet.id == 0x02 => {
// Ignore server's Login Success, we'll use ours
debug!(
log_type = LogType::ProxyMode.as_str(),
"Received Login Success from server, Server Initialised"
);
server_initialised = true;
}
packet => {
debug!(
log_type = LogType::ProxyMode.as_str(),
"Received packet {:?} from server", packet
);
}
}
}
match actor
.client_sender
.send(MinecraftCommunication::CustomData(
ClientOnlyMessage::ServerReady(),
))
.await
{
Ok(_) => {}
Err(e) => {
error!(
log_type = LogType::ProxyMode.as_str(),
"Failed to send ServerReady message to client: {}", e
);
}
};
if let Some(msg) = actor.server_receiver.recv().await {
match msg {
MinecraftCommunication::CustomData(
ClientOnlyMessage::ClientLoginAcknowledged(packet),
) => {
debug!(
log_type = LogType::ProxyMode.as_str(),
"Server received ClientLoginAcknowledged message"
);
conn.write_packet(&packet).await?;
}
_ => {
error!(
log_type = LogType::ProxyMode.as_str(),
"Unexpected message waited Acknowledged got : {:?}", msg
);
}
}
}
}
}
Ok(())
}
}