108 lines
2.8 KiB
Rust
108 lines
2.8 KiB
Rust
use structopt::StructOpt;
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use tokio::net::TcpStream;
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use quic_demo::prelude::*;
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use protocol::PeerId;
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#[derive (Debug, StructOpt)]
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struct Opt {
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#[structopt (long)]
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relay_addr: Option <String>,
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#[structopt (long)]
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server_id: Option <PeerId>,
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#[structopt (long)]
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debug_echo: bool,
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#[structopt (long)]
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cert_url: Option <String>,
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}
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#[tokio::main]
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async fn main () -> anyhow::Result <()> {
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tracing_subscriber::fmt::init ();
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let opt = Arc::new (Opt::from_args ());
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let server_cert = match opt.cert_url.as_ref () {
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Some (url) => reqwest::get (url).await?.bytes ().await?,
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None => tokio::fs::read ("quic_server.crt").await?.into (),
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};
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let relay_addr = opt.relay_addr.clone ().unwrap_or_else (|| String::from ("127.0.0.1:30380")).parse ()?;
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let endpoint = make_client_endpoint ("0.0.0.0:0".parse ()?, &[&server_cert])?;
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trace! ("Connecting to relay server");
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let server_id = opt.server_id.clone ().unwrap_or_else (|| "bogus_server".to_string ());
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let quinn::NewConnection {
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mut bi_streams,
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..
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} = protocol::p4_connect_to_p3 (&endpoint, &relay_addr, &server_id).await?;
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debug! ("Connected to relay server");
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trace! ("Accepting bi streams from P3");
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loop {
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let (relay_send, relay_recv) = bi_streams.next ().await.ok_or_else (|| anyhow::anyhow! ("Relay server didn't open a bi stream"))??;
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tokio::spawn (handle_bi_stream (Arc::clone (&opt), relay_send, relay_recv));
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}
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}
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async fn handle_bi_stream (
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opt: Arc <Opt>,
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relay_send: quinn::SendStream,
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mut relay_recv: quinn::RecvStream,
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) -> anyhow::Result <()>
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{
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match protocol::p4_accept_p3_stream (&mut relay_recv).await? {
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protocol::P3ToP4Stream::NewPtthConnection {
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client_id,
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..
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} => handle_new_ptth_connection (opt, relay_send, relay_recv, client_id).await?,
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}
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Ok (())
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}
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async fn handle_new_ptth_connection (
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opt: Arc <Opt>,
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mut relay_send: quinn::SendStream,
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mut relay_recv: quinn::RecvStream,
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_client_id: String,
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) -> anyhow::Result <()>
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{
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// TODO: Check authorization for P2 --> P4
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protocol::p4_authorize_p2_connection (&mut relay_send).await?;
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let p4_to_p5_req = protocol::p4_expect_p5_request (&mut relay_recv).await?;
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// TODO: Check authorization for P1 --> P5
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protocol::p4_authorize_p1_connection (&mut relay_send).await?;
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debug! ("Started PTTH connection");
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if opt.debug_echo {
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relay_send.write (b"Connected to P4=P5 debug echo server\n").await?;
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debug! ("Relaying bytes using internal debug echo server (P4=P5)");
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tokio::io::copy (&mut relay_recv, &mut relay_send).await?;
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}
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else {
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let stream = TcpStream::connect (("127.0.0.1", p4_to_p5_req.port)).await?;
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let (local_recv, local_send) = stream.into_split ();
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trace! ("Relaying bytes...");
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let ptth_conn = quic_demo::connection::NewConnection {
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local_send,
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local_recv,
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relay_send,
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relay_recv,
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}.build ();
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ptth_conn.wait_for_close ().await?;
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}
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Ok (())
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}
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