Websocket server listener + protocol autodetection
This commit is contained in:
parent
903c91bc86
commit
aba9f5c050
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@ -1,29 +1,125 @@
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# This file is automatically @generated by Cargo.
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@ -35,12 +131,42 @@ dependencies = [
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@ -59,9 +185,9 @@ checksum = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
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@ -74,9 +200,9 @@ dependencies = [
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@ -84,15 +210,15 @@ dependencies = [
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[[package]]
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@ -101,15 +227,15 @@ dependencies = [
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@ -119,21 +245,24 @@ dependencies = [
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@ -142,12 +271,42 @@ dependencies = [
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@ -157,6 +316,43 @@ dependencies = [
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@ -166,6 +362,12 @@ dependencies = [
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@ -197,6 +399,12 @@ dependencies = [
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@ -222,6 +430,17 @@ dependencies = [
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@ -234,6 +453,24 @@ dependencies = [
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||||
[[package]]
|
||||
name = "unicode-segmentation"
|
||||
version = "1.6.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e83e153d1053cbb5a118eeff7fd5be06ed99153f00dbcd8ae310c5fb2b22edc0"
|
||||
|
||||
[[package]]
|
||||
name = "unicode-width"
|
||||
version = "0.1.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
|
||||
|
||||
[[package]]
|
||||
name = "unicode-xid"
|
||||
version = "0.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
|
||||
|
||||
[[package]]
|
||||
name = "url"
|
||||
version = "2.1.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "829d4a8476c35c9bf0bbce5a3b23f4106f79728039b726d292bb93bc106787cb"
|
||||
dependencies = [
|
||||
"idna",
|
||||
"matches",
|
||||
"percent-encoding",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "utf-8"
|
||||
version = "0.7.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "05e42f7c18b8f902290b009cde6d651262f956c98bc51bca4cd1d511c9cd85c7"
|
||||
|
||||
[[package]]
|
||||
name = "vcpkg"
|
||||
version = "0.2.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3fc439f2794e98976c88a2a2dafce96b930fe8010b0a256b3c2199a773933168"
|
||||
|
||||
[[package]]
|
||||
name = "vec_map"
|
||||
version = "0.8.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
|
||||
|
||||
[[package]]
|
||||
name = "version_check"
|
||||
version = "0.9.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "078775d0255232fb988e6fccf26ddc9d1ac274299aaedcedce21c6f72cc533ce"
|
||||
|
||||
[[package]]
|
||||
name = "wasi"
|
||||
version = "0.9.0+wasi-snapshot-preview1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
||||
version = "0.2.8"
|
||||
|
|
|
|||
|
|
@ -16,8 +16,13 @@ preserves = "0.4.0"
|
|||
serde = { version = "1.0", features = ["derive", "rc"] }
|
||||
serde_bytes = "0.11"
|
||||
|
||||
tokio = { version = "0.2.20", features = ["macros", "rt-threaded", "sync", "dns", "tcp", "time", "stream"] }
|
||||
tokio = { version = "0.2.21", features = ["macros", "rt-threaded", "sync", "dns", "tcp", "time", "stream"] }
|
||||
tokio-util = { version = "0.3.1", features = ["codec"] }
|
||||
bytes = "0.5.4"
|
||||
|
||||
futures = "0.3.4"
|
||||
futures = "0.3.5"
|
||||
|
||||
structopt = "0.3.14"
|
||||
|
||||
tungstenite = "0.10.1"
|
||||
tokio-tungstenite = "0.10.1"
|
||||
|
|
|
|||
|
|
@ -1,26 +1,143 @@
|
|||
use syndicate::{peer, spaces};
|
||||
use syndicate::{spaces, packets, ConnId, V, Syndicate};
|
||||
use syndicate::peer::{Peer, ResultC2S};
|
||||
use preserves::value;
|
||||
|
||||
use std::sync::{Mutex, Arc};
|
||||
use std::net::SocketAddr;
|
||||
use futures::{SinkExt, StreamExt};
|
||||
|
||||
use tokio::net::TcpListener;
|
||||
use tokio::net::TcpStream;
|
||||
use tokio_util::codec::Framed;
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> Result<(), Box<dyn std::error::Error>> {
|
||||
let spaces = Arc::new(Mutex::new(spaces::Spaces::new()));
|
||||
let mut id = 0;
|
||||
use tungstenite::Message;
|
||||
|
||||
let port = 8001;
|
||||
use structopt::StructOpt;
|
||||
|
||||
#[derive(StructOpt)]
|
||||
struct Cli {
|
||||
#[structopt(short = "p", long = "port", default_value = "8001")]
|
||||
ports: Vec<u16>,
|
||||
}
|
||||
|
||||
type UnitAsyncResult = Result<(), std::io::Error>;
|
||||
|
||||
fn other_eio<E: std::fmt::Display>(e: E) -> std::io::Error {
|
||||
std::io::Error::new(std::io::ErrorKind::Other, e.to_string())
|
||||
}
|
||||
|
||||
fn translate_sink_err(e: tungstenite::Error) -> packets::EncodeError {
|
||||
packets::EncodeError::Write(other_eio(e))
|
||||
}
|
||||
|
||||
fn encode_message(codec: &value::Codec<V, Syndicate>, p: packets::S2C) ->
|
||||
Result<Message, packets::EncodeError>
|
||||
{
|
||||
let v: V = value::to_value(p)?;
|
||||
Ok(Message::Binary(codec.encode_bytes(&v)?))
|
||||
}
|
||||
|
||||
fn message_encoder(codec: &value::Codec<V, Syndicate>)
|
||||
-> impl Fn(packets::S2C) -> futures::future::Ready<Result<Message, packets::EncodeError>> + '_
|
||||
{
|
||||
return move |p| futures::future::ready(encode_message(codec, p));
|
||||
}
|
||||
|
||||
fn message_decoder(codec: &value::Codec<V, Syndicate>) -> impl Fn(Result<Message, tungstenite::Error>) -> ResultC2S + '_ {
|
||||
return move |r| {
|
||||
loop {
|
||||
return match r {
|
||||
Ok(ref m) => match m {
|
||||
Message::Text(_) => Err(packets::DecodeError::Read(
|
||||
value::decoder::Error::Syntax("Text websocket frames are not accepted"))),
|
||||
Message::Binary(ref bs) => {
|
||||
let v = codec.decode(&mut &bs[..])?;
|
||||
value::from_value(&v).map_err(|e| packets::DecodeError::Parse(e, v))
|
||||
}
|
||||
Message::Ping(_) => continue, // pings are handled by tungstenite before we see them
|
||||
Message::Pong(_) => continue, // unsolicited pongs are to be ignored
|
||||
Message::Close(_) => Err(packets::DecodeError::Read(value::decoder::Error::Eof)),
|
||||
}
|
||||
Err(tungstenite::Error::Io(e)) => Err(e.into()),
|
||||
Err(e) => Err(packets::DecodeError::Read(value::decoder::Error::Io(other_eio(e)))),
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
async fn run_connection(connid: ConnId,
|
||||
addr: SocketAddr,
|
||||
mut stream: TcpStream,
|
||||
spaces: Arc<Mutex<spaces::Spaces>>) ->
|
||||
UnitAsyncResult
|
||||
{
|
||||
let mut buf = [0; 1]; // peek at the first byte to see what kind of connection to expect
|
||||
match stream.peek(&mut buf).await? {
|
||||
1 => match buf[0] {
|
||||
71 /* ASCII 'G' for "GET" */ => {
|
||||
let s = tokio_tungstenite::accept_async(stream).await
|
||||
.map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, e))?;
|
||||
let (o, i) = s.split();
|
||||
let codec = packets::standard_preserves_codec();
|
||||
let i = i.map(message_decoder(&codec));
|
||||
let o = o.sink_map_err(translate_sink_err).with(message_encoder(&codec));
|
||||
let mut p = Peer::new(connid, i, o);
|
||||
p.run(spaces).await?
|
||||
},
|
||||
_ => {
|
||||
println!("First byte: {:?}", buf);
|
||||
let (o, i) = Framed::new(stream, packets::Codec::standard()).split();
|
||||
let mut p = Peer::new(connid, i, o);
|
||||
p.run(spaces).await?
|
||||
}
|
||||
}
|
||||
0 => return Err(std::io::Error::new(std::io::ErrorKind::UnexpectedEof,
|
||||
"closed before starting")),
|
||||
_ => unreachable!()
|
||||
}
|
||||
println!("Connection {} ({:?}) terminated normally", connid, addr);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn run_listener(spaces: Arc<Mutex<spaces::Spaces>>, port: u16) -> UnitAsyncResult {
|
||||
let mut listener = TcpListener::bind(format!("0.0.0.0:{}", port)).await?;
|
||||
println!("Listening on port {}", port);
|
||||
let mut id = port as u64 + 100000000000000;
|
||||
loop {
|
||||
let (stream, addr) = listener.accept().await?;
|
||||
let connid = id;
|
||||
let spaces = Arc::clone(&spaces);
|
||||
id += 1;
|
||||
id += 100000;
|
||||
tokio::spawn(async move {
|
||||
match peer::Peer::new(connid, stream).await.run(spaces).await {
|
||||
Ok(_) => println!("Connection {} ({:?}) terminated", connid, addr),
|
||||
Err(e) => println!("Connection {} ({:?}) died with {:?}", connid, addr, e),
|
||||
println!("Connection {} ({:?}) accepted from port {}", connid, addr, port);
|
||||
match run_connection(connid, addr, stream, spaces).await {
|
||||
Ok(()) => println!("Connection {} ({:?}) terminated normally", connid, addr),
|
||||
Err(e) => println!("Connection {} ({:?}) terminated: {}", connid, addr, e),
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> Result<(), Box<dyn std::error::Error>> {
|
||||
let args = Cli::from_args();
|
||||
|
||||
let spaces = Arc::new(Mutex::new(spaces::Spaces::new()));
|
||||
let mut listeners = Vec::new();
|
||||
|
||||
for port in args.ports {
|
||||
let spaces = Arc::clone(&spaces);
|
||||
listeners.push(tokio::spawn(async move {
|
||||
match run_listener(spaces, port).await {
|
||||
Ok(()) => (),
|
||||
Err(e) => {
|
||||
eprintln!("Error from listener for port {}: {}", port, e);
|
||||
std::process::exit(2)
|
||||
}
|
||||
}
|
||||
}));
|
||||
}
|
||||
|
||||
futures::future::join_all(listeners).await;
|
||||
Ok(())
|
||||
}
|
||||
|
|
|
|||
|
|
@ -50,6 +50,12 @@ pub enum DecodeError {
|
|||
Parse(value::error::Error<Syndicate>, V),
|
||||
}
|
||||
|
||||
impl From<value::decoder::Error> for DecodeError {
|
||||
fn from(v: value::decoder::Error) -> Self {
|
||||
DecodeError::Read(v)
|
||||
}
|
||||
}
|
||||
|
||||
impl From<io::Error> for DecodeError {
|
||||
fn from(v: io::Error) -> Self {
|
||||
DecodeError::Read(v.into())
|
||||
|
|
@ -114,19 +120,23 @@ pub struct Codec<InT, OutT> {
|
|||
pub type ServerCodec = Codec<C2S, S2C>;
|
||||
pub type ClientCodec = Codec<S2C, C2S>;
|
||||
|
||||
pub fn standard_preserves_codec() -> value::Codec<V, Syndicate> {
|
||||
value::Codec::new({
|
||||
let mut m = value::Map::new();
|
||||
m.insert(0, value::Value::symbol("Discard"));
|
||||
m.insert(1, value::Value::symbol("Capture"));
|
||||
m.insert(2, value::Value::symbol("Observe"));
|
||||
m
|
||||
})
|
||||
}
|
||||
|
||||
impl<InT, OutT> Codec<InT, OutT> {
|
||||
pub fn new(codec: value::Codec<V, Syndicate>) -> Self {
|
||||
Codec { codec, ph_in: PhantomData, ph_out: PhantomData }
|
||||
}
|
||||
|
||||
pub fn standard() -> Self {
|
||||
Self::new(value::Codec::new({
|
||||
let mut m = value::Map::new();
|
||||
m.insert(0, value::Value::symbol("Discard"));
|
||||
m.insert(1, value::Value::symbol("Capture"));
|
||||
m.insert(2, value::Value::symbol("Observe"));
|
||||
m
|
||||
}))
|
||||
Self::new(standard_preserves_codec())
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
45
src/peer.rs
45
src/peer.rs
|
|
@ -5,22 +5,27 @@ use super::packets;
|
|||
use super::spaces;
|
||||
|
||||
use core::time::Duration;
|
||||
use futures::{Sink, SinkExt, Stream};
|
||||
use futures::FutureExt;
|
||||
use futures::SinkExt;
|
||||
use futures::select;
|
||||
use preserves::value;
|
||||
use std::pin::Pin;
|
||||
use std::sync::{Mutex, Arc};
|
||||
use tokio::net::TcpStream;
|
||||
use tokio::stream::StreamExt;
|
||||
use tokio::sync::mpsc::{unbounded_channel, UnboundedSender, UnboundedReceiver};
|
||||
use tokio::time::interval;
|
||||
use tokio_util::codec::Framed;
|
||||
|
||||
pub struct Peer {
|
||||
pub type ResultC2S = Result<packets::C2S, packets::DecodeError>;
|
||||
|
||||
pub struct Peer<I, O>
|
||||
where I: Stream<Item = ResultC2S> + Send,
|
||||
O: Sink<packets::S2C, Error = packets::EncodeError>,
|
||||
{
|
||||
id: ConnId,
|
||||
tx: UnboundedSender<packets::S2C>,
|
||||
rx: UnboundedReceiver<packets::S2C>,
|
||||
frames: Framed<TcpStream, packets::ServerCodec>,
|
||||
i: Pin<Box<I>>,
|
||||
o: Pin<Box<O>>,
|
||||
space: Option<dataspace::DataspaceRef>,
|
||||
}
|
||||
|
||||
|
|
@ -28,24 +33,23 @@ fn err(s: &str, ctx: V) -> packets::S2C {
|
|||
packets::S2C::Err(s.into(), ctx)
|
||||
}
|
||||
|
||||
impl Peer {
|
||||
pub async fn new(id: ConnId, stream: TcpStream) -> Self {
|
||||
impl<I, O> Peer<I, O>
|
||||
where I: Stream<Item = ResultC2S> + Send,
|
||||
O: Sink<packets::S2C, Error = packets::EncodeError>,
|
||||
{
|
||||
pub fn new(id: ConnId, i: I, o: O) -> Self {
|
||||
let (tx, rx) = unbounded_channel();
|
||||
let frames = Framed::new(stream, packets::Codec::standard());
|
||||
Peer{ id, tx, rx, frames, space: None }
|
||||
Peer{ id, tx, rx, i: Box::pin(i), o: Box::pin(o), space: None }
|
||||
}
|
||||
|
||||
pub async fn run(&mut self, spaces: Arc<Mutex<spaces::Spaces>>) -> Result<(), std::io::Error> {
|
||||
println!("{:?}: {:?}", self.id, &self.frames.get_ref());
|
||||
|
||||
let firstpacket = self.frames.next().await;
|
||||
let firstpacket = self.i.next().await;
|
||||
let dsname = if let Some(Ok(packets::C2S::Connect(dsname))) = firstpacket {
|
||||
dsname
|
||||
} else {
|
||||
let e: String = format!("Expected initial Connect, got {:?}", firstpacket);
|
||||
println!("{:?}: {}", self.id, e);
|
||||
self.frames.send(err(&e, value::Value::from(false).wrap())).await?;
|
||||
return Ok(())
|
||||
let e = format!("Expected initial Connect, got {:?}", firstpacket);
|
||||
self.o.send(err(&e, value::Value::from(false).wrap())).await?;
|
||||
return Err(std::io::Error::new(std::io::ErrorKind::InvalidData, e))
|
||||
};
|
||||
|
||||
self.space = Some(spaces.lock().unwrap().lookup(&dsname));
|
||||
|
|
@ -58,7 +62,7 @@ impl Peer {
|
|||
let mut to_send = Vec::new();
|
||||
select! {
|
||||
_instant = ping_timer.next().boxed().fuse() => to_send.push(packets::S2C::Ping()),
|
||||
frame = self.frames.next().boxed().fuse() => match frame {
|
||||
frame = self.i.next().fuse() => match frame {
|
||||
Some(res) => match res {
|
||||
Ok(p) => {
|
||||
// println!("{:?}: input {:?}", self.id, &p);
|
||||
|
|
@ -116,7 +120,7 @@ impl Peer {
|
|||
// println!("{:?}: output {:?}", self.id, &v);
|
||||
()
|
||||
}
|
||||
self.frames.send(v).await?;
|
||||
self.o.send(v).await?;
|
||||
}
|
||||
tokio::task::yield_now().await;
|
||||
}
|
||||
|
|
@ -124,7 +128,10 @@ impl Peer {
|
|||
}
|
||||
}
|
||||
|
||||
impl Drop for Peer {
|
||||
impl<I, O> Drop for Peer<I, O>
|
||||
where I: Stream<Item = ResultC2S> + Send,
|
||||
O: Sink<packets::S2C, Error = packets::EncodeError>,
|
||||
{
|
||||
fn drop(&mut self) {
|
||||
if let Some(ref s) = self.space {
|
||||
s.write().unwrap().deregister(self.id);
|
||||
|
|
|
|||
Loading…
Reference in New Issue