Compare commits

...

24 Commits

Author SHA1 Message Date
Luke Curley f9c3f8b898 WIP 2023-07-18 10:42:38 -07:00
François Michel a06d273e69 simplyfy the generics usage in warp relay 2023-07-15 11:46:19 +00:00
François Michel 2427ea09af remove dependency on moq-transport-quinn from moq-demo-quinn 2023-07-15 11:36:45 +00:00
François Michel 912c438cc9 reorganize the main of moq-demo-quinn 2023-07-15 11:32:42 +00:00
François Michel 6212dc5e2f restore tokio version and remove unneeded comments fin moq-demo-quinn 2023-07-15 11:21:18 +00:00
François Michel 6ba26c8a16 remove dependencies on quinn from moq-warp 2023-07-15 11:18:34 +00:00
François Michel 05da131c9a put generic transport behaviour in moq-transport 2023-07-15 11:13:40 +00:00
François Michel 4b9a31fa89 moq-demo-quinn: remove commented line 2023-07-12 22:39:52 +00:00
François Michel 8e763e910a implement moq-transport-generic and provide 2 crates for 2 implems 2023-07-12 22:37:09 +00:00
François Michel 880079e142 clean traits 2023-07-12 12:44:42 +00:00
François Michel 94b8b55ea6 refine transport trait 2023-07-12 12:44:42 +00:00
François Michel c360ea1416 add generic moq transport trait 2023-07-12 11:38:55 +00:00
François Michel 6ca7ab5124 transport trait: apply shared functions on boxed conn 2023-07-12 11:04:37 +00:00
François Michel f4353892ef transport trait: add shared methods on connection 2023-07-12 12:58:16 +02:00
François Michel 72d11851e1 ensure recvstream's buf is Send 2023-07-11 13:56:27 +00:00
François Michel 9f690f7f00 update transport trait 2023-07-11 11:51:16 +00:00
François Michel 7545027775 implement async methods for connection and streams 2023-07-10 14:41:04 +00:00
François Michel 17b96ff51b remove opener from connection, currently unused 2023-07-10 13:17:09 +00:00
François Michel 31bd538481 remove generic arg from Connection 2023-07-10 13:03:34 +00:00
François Michel 6657464462 fir async server compilation after last change 2023-07-10 12:58:47 +00:00
François Michel c50da7ed37 remove generic arg from OpenStreams 2023-07-10 12:42:26 +00:00
François Michel f33251d69b remove SendStream's send_data as its behaviour is unclear 2023-07-10 11:30:41 +00:00
François Michel 78f68a6fa0 remove datagrams and use anyhow error type by default 2023-07-10 09:00:42 +00:00
François Michel 9d48201504 add generic transport trait 2023-07-10 08:37:20 +00:00
17 changed files with 925 additions and 198 deletions

303
Cargo.lock generated
View File

@ -66,6 +66,124 @@ version = "1.0.71"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9c7d0618f0e0b7e8ff11427422b64564d5fb0be1940354bfe2e0529b18a9d9b8"
[[package]]
name = "async-channel"
version = "1.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "81953c529336010edd6d8e358f886d9581267795c61b19475b71314bffa46d35"
dependencies = [
"concurrent-queue",
"event-listener",
"futures-core",
]
[[package]]
name = "async-executor"
version = "1.5.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6fa3dc5f2a8564f07759c008b9109dc0d39de92a88d5588b8a5036d286383afb"
dependencies = [
"async-lock",
"async-task",
"concurrent-queue",
"fastrand",
"futures-lite",
"slab",
]
[[package]]
name = "async-global-executor"
version = "2.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f1b6f5d7df27bd294849f8eec66ecfc63d11814df7a4f5d74168a2394467b776"
dependencies = [
"async-channel",
"async-executor",
"async-io",
"async-lock",
"blocking",
"futures-lite",
"once_cell",
]
[[package]]
name = "async-io"
version = "1.13.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0fc5b45d93ef0529756f812ca52e44c221b35341892d3dcc34132ac02f3dd2af"
dependencies = [
"async-lock",
"autocfg",
"cfg-if",
"concurrent-queue",
"futures-lite",
"log",
"parking",
"polling",
"rustix",
"slab",
"socket2 0.4.9",
"waker-fn",
]
[[package]]
name = "async-lock"
version = "2.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fa24f727524730b077666307f2734b4a1a1c57acb79193127dcc8914d5242dd7"
dependencies = [
"event-listener",
]
[[package]]
name = "async-std"
version = "1.12.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "62565bb4402e926b29953c785397c6dc0391b7b446e45008b0049eb43cec6f5d"
dependencies = [
"async-channel",
"async-global-executor",
"async-io",
"async-lock",
"crossbeam-utils",
"futures-channel",
"futures-core",
"futures-io",
"futures-lite",
"gloo-timers",
"kv-log-macro",
"log",
"memchr",
"once_cell",
"pin-project-lite",
"pin-utils",
"slab",
"wasm-bindgen-futures",
]
[[package]]
name = "async-task"
version = "4.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ecc7ab41815b3c653ccd2978ec3255c81349336702dfdf62ee6f7069b12a3aae"
[[package]]
name = "async-trait"
version = "0.1.69"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7b2d0f03b3640e3a630367e40c468cb7f309529c708ed1d88597047b0e7c6ef7"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "atomic-waker"
version = "1.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1181e1e0d1fce796a03db1ae795d67167da795f9cf4a39c37589e85ef57f26d3"
[[package]]
name = "atty"
version = "0.2.14"
@ -110,6 +228,21 @@ dependencies = [
"generic-array",
]
[[package]]
name = "blocking"
version = "1.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "77231a1c8f801696fc0123ec6150ce92cffb8e164a02afb9c8ddee0e9b65ad65"
dependencies = [
"async-channel",
"async-lock",
"async-task",
"atomic-waker",
"fastrand",
"futures-lite",
"log",
]
[[package]]
name = "bumpalo"
version = "3.13.0"
@ -188,6 +321,15 @@ version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
[[package]]
name = "concurrent-queue"
version = "2.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "62ec6771ecfa0762d24683ee5a32ad78487a3d3afdc0fb8cae19d2c5deb50b7c"
dependencies = [
"crossbeam-utils",
]
[[package]]
name = "core-foundation"
version = "0.9.3"
@ -213,6 +355,15 @@ dependencies = [
"libc",
]
[[package]]
name = "crossbeam-utils"
version = "0.8.16"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5a22b2d63d4d1dc0b7f1b6b2747dd0088008a9be28b6ddf0b1e7d335e3037294"
dependencies = [
"cfg-if",
]
[[package]]
name = "crypto-common"
version = "0.1.6"
@ -276,6 +427,12 @@ dependencies = [
"libc",
]
[[package]]
name = "event-listener"
version = "2.5.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0206175f82b8d6bf6652ff7d71a1e27fd2e4efde587fd368662814d6ec1d9ce0"
[[package]]
name = "fastrand"
version = "1.9.0"
@ -348,6 +505,21 @@ version = "0.3.28"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4fff74096e71ed47f8e023204cfd0aa1289cd54ae5430a9523be060cdb849964"
[[package]]
name = "futures-lite"
version = "1.13.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "49a9d51ce47660b1e808d3c990b4709f2f415d928835a17dfd16991515c46bce"
dependencies = [
"fastrand",
"futures-core",
"futures-io",
"memchr",
"parking",
"pin-project-lite",
"waker-fn",
]
[[package]]
name = "futures-macro"
version = "0.3.28"
@ -410,6 +582,18 @@ dependencies = [
"wasi",
]
[[package]]
name = "gloo-timers"
version = "0.2.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9b995a66bb87bebce9a0f4a95aed01daca4872c050bfcb21653361c03bc35e5c"
dependencies = [
"futures-channel",
"futures-core",
"js-sys",
"wasm-bindgen",
]
[[package]]
name = "h2"
version = "0.3.19"
@ -669,6 +853,15 @@ dependencies = [
"wasm-bindgen",
]
[[package]]
name = "kv-log-macro"
version = "1.0.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0de8b303297635ad57c9f5059fd9cee7a47f8e8daa09df0fcd07dd39fb22977f"
dependencies = [
"log",
]
[[package]]
name = "libc"
version = "0.2.146"
@ -696,6 +889,9 @@ name = "log"
version = "0.4.19"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b06a4cde4c0f271a446782e3eff8de789548ce57dbc8eca9292c27f4a42004b4"
dependencies = [
"value-bag",
]
[[package]]
name = "memchr"
@ -735,6 +931,7 @@ name = "moq-demo"
version = "0.1.0"
dependencies = [
"anyhow",
"bytes",
"clap",
"env_logger",
"hex",
@ -747,15 +944,21 @@ dependencies = [
"rustls-pemfile",
"tokio",
"warp",
"webtransport-generic 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"webtransport-quinn",
]
[[package]]
name = "moq-transport"
version = "0.1.0"
dependencies = [
"anyhow",
"bytes",
"futures",
"log",
"thiserror",
"tokio",
"webtransport-generic 0.2.0",
]
[[package]]
@ -780,15 +983,15 @@ name = "moq-warp"
version = "0.1.0"
dependencies = [
"anyhow",
"bytes",
"log",
"moq-transport",
"moq-transport-quinn",
"mp4",
"quinn",
"ring",
"rustls 0.21.2",
"rustls-pemfile",
"tokio",
"webtransport-generic 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -888,6 +1091,12 @@ version = "0.1.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
[[package]]
name = "parking"
version = "2.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "14f2252c834a40ed9bb5422029649578e63aa341ac401f74e719dd1afda8394e"
[[package]]
name = "parking_lot"
version = "0.12.1"
@ -949,6 +1158,22 @@ version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
[[package]]
name = "polling"
version = "2.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4b2d323e8ca7996b3e23126511a523f7e62924d93ecd5ae73b333815b0eb3dce"
dependencies = [
"autocfg",
"bitflags",
"cfg-if",
"concurrent-queue",
"libc",
"log",
"pin-project-lite",
"windows-sys 0.48.0",
]
[[package]]
name = "ppv-lite86"
version = "0.2.17"
@ -1606,12 +1831,24 @@ version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
[[package]]
name = "value-bag"
version = "1.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d92ccd67fb88503048c01b59152a04effd0782d035a83a6d256ce6085f08f4a3"
[[package]]
name = "version_check"
version = "0.9.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
[[package]]
name = "waker-fn"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
[[package]]
name = "want"
version = "0.3.1"
@ -1684,6 +1921,18 @@ dependencies = [
"wasm-bindgen-shared",
]
[[package]]
name = "wasm-bindgen-futures"
version = "0.4.37"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c02dbc21516f9f1f04f187958890d7e6026df8d16540b7ad9492bc34a67cea03"
dependencies = [
"cfg-if",
"js-sys",
"wasm-bindgen",
"web-sys",
]
[[package]]
name = "wasm-bindgen-macro"
version = "0.2.87"
@ -1733,6 +1982,56 @@ dependencies = [
"untrusted",
]
[[package]]
name = "webtransport-generic"
version = "0.2.0"
dependencies = [
"async-trait",
"bytes",
"log",
"thiserror",
]
[[package]]
name = "webtransport-generic"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "db80267637ca8d24cd3425a3e993842ed9e128620f5fcd9603145fee8fe808fd"
dependencies = [
"bytes",
"log",
"thiserror",
]
[[package]]
name = "webtransport-proto"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "24a891faa138075b2338bc3da6dc6a67c174118a088e2809db6882d410973cd6"
dependencies = [
"bytes",
"http",
"thiserror",
]
[[package]]
name = "webtransport-quinn"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ea529a3044e99379b180581e8b0773fa7feb1fc53e341f36927a755ac05abd62"
dependencies = [
"async-std",
"bytes",
"futures",
"http",
"quinn",
"quinn-proto",
"thiserror",
"tokio-util",
"webtransport-generic 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"webtransport-proto",
]
[[package]]
name = "winapi"
version = "0.3.9"

View File

@ -1,7 +1,2 @@
[workspace]
members = [
"moq-transport",
"moq-transport-quinn",
"moq-demo",
"moq-warp",
]
members = ["moq-transport", "moq-transport-quinn", "moq-demo", "moq-warp"]

View File

@ -11,12 +11,9 @@ edition = "2021"
keywords = ["quic", "http3", "webtransport", "media", "live"]
categories = ["multimedia", "network-programming", "web-programming"]
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
moq-transport = { path = "../moq-transport" }
moq-warp = { path = "../moq-warp" }
# QUIC
quinn = "0.10"
@ -38,3 +35,11 @@ clap = { version = "4.0", features = [ "derive" ] }
log = { version = "0.4", features = ["std"] }
env_logger = "0.9.3"
anyhow = "1.0.70"
bytes = "1"
webtransport-generic = "0.2"
webtransport-quinn = "0.3"
moq-transport = { path = "../moq-transport" }
moq-warp = { path = "../moq-warp" }

View File

@ -1,11 +1,18 @@
use std::{fs, io, net, path, sync};
use std::{fs, io, net, path};
use anyhow::Context;
use clap::Parser;
use moq_transport::{Role, SetupServer, Version};
use ring::digest::{digest, SHA256};
use tokio::task::JoinSet;
use warp::Filter;
use moq_warp::{relay, source};
use moq_warp::{
relay::{self, broker::Broadcasts},
source,
};
mod server;
/// Search for a pattern in a file and display the lines that contain it.
#[derive(Parser, Clone)]
@ -49,19 +56,55 @@ async fn main() -> anyhow::Result<()> {
addr: args.addr,
cert: args.cert,
key: args.key,
broker,
broker: broker.clone(),
};
let server = relay::Server::new(config).context("failed to create server")?;
// Run all of the above
tokio::select! {
res = server.run() => res.context("failed to run server"),
res = run_server(config, broker) => res.context("failed to run server"),
res = media.run() => res.context("failed to run media source"),
res = serve => res.context("failed to run HTTP server"),
}
}
async fn run_server(config: relay::ServerConfig, broker: Broadcasts) -> anyhow::Result<()> {
let quinn = server::Server::new(config).unwrap();
let mut tasks = JoinSet::new();
loop {
let broker = broker.clone();
tokio::select! {
connect = server::Server::accept_new_webtransport_session(&quinn) => {
tasks.spawn(async move {
let client_setup = connect?.accept().await?;
// TODO: maybe reject setup
let role = match client_setup.setup().role {
Role::Publisher => Role::Subscriber,
Role::Subscriber => Role::Publisher,
Role::Both => Role::Both,
};
let setup_server = SetupServer {
version: Version::DRAFT_00,
role,
};
let session = client_setup.accept(setup_server).await?;
let session = relay::Session::from_transport_session(session, broker.clone()).await?;
session.run().await?;
let ret: anyhow::Result<()> = Ok(());
ret
});
}
res = tasks.join_next(), if !tasks.is_empty() => {
let res = res.expect("no tasks").expect("task aborted");
if let Err(err) = res {
log::error!("session terminated: {:?}", err);
}
},
}
}
}
// Run a HTTP server using Warp
// TODO remove this when Chrome adds support for self-signed certificates using WebTransport
async fn serve_http(args: Cli) -> anyhow::Result<()> {
@ -76,7 +119,7 @@ async fn serve_http(args: Cli) -> anyhow::Result<()> {
// Compute the SHA-256 digest
let fingerprint = digest(&SHA256, cert.as_ref());
let fingerprint = hex::encode(fingerprint.as_ref());
let fingerprint = sync::Arc::new(fingerprint);
let fingerprint = std::sync::Arc::new(fingerprint);
let cors = warp::cors().allow_any_origin();

209
moq-demo/src/server/mod.rs Normal file
View File

@ -0,0 +1,209 @@
use std::{fs, io, time};
use anyhow::Context;
use bytes::Bytes;
use h3::quic::BidiStream;
use h3_webtransport::server::AcceptedBi;
use moq_transport::AcceptSetup;
use moq_warp::relay::ServerConfig;
use tokio::task::JoinSet;
use warp::{http, Future};
pub struct Server {
// The MoQ transport server.
server: quinn::Endpoint,
}
impl Server {
// Create a new server
pub fn new(config: ServerConfig) -> anyhow::Result<Self> {
// Read the PEM certificate chain
let certs = fs::File::open(config.cert).context("failed to open cert file")?;
let mut certs = io::BufReader::new(certs);
let certs = rustls_pemfile::certs(&mut certs)?
.into_iter()
.map(rustls::Certificate)
.collect();
// Read the PEM private key
let keys = fs::File::open(config.key).context("failed to open key file")?;
let mut keys = io::BufReader::new(keys);
let mut keys = rustls_pemfile::pkcs8_private_keys(&mut keys)?;
anyhow::ensure!(keys.len() == 1, "expected a single key");
let key = rustls::PrivateKey(keys.remove(0));
let mut tls_config = rustls::ServerConfig::builder()
.with_safe_default_cipher_suites()
.with_safe_default_kx_groups()
.with_protocol_versions(&[&rustls::version::TLS13])
.unwrap()
.with_no_client_auth()
.with_single_cert(certs, key)?;
tls_config.max_early_data_size = u32::MAX;
let alpn: Vec<Vec<u8>> = vec![webtransport_quinn::ALPN];
tls_config.alpn_protocols = alpn;
let mut server_config = quinn::ServerConfig::with_crypto(std::sync::Arc::new(tls_config));
// Enable BBR congestion control
// TODO validate the implementation
let mut transport_config = quinn::TransportConfig::default();
transport_config.keep_alive_interval(Some(time::Duration::from_secs(2)));
transport_config.congestion_controller_factory(std::sync::Arc::new(quinn::congestion::BbrConfig::default()));
server_config.transport = std::sync::Arc::new(transport_config);
let server = quinn::Endpoint::server(server_config, config.addr)?;
Ok(Self { server })
}
pub async fn accept_new_webtransport_session(endpoint: &h3_quinn::Endpoint) -> anyhow::Result<Connect> {
let mut handshake = JoinSet::new();
// perform a quic handshake
loop {
tokio::select!(
// Accept the connection and start the WebTransport handshake.
conn = endpoint.accept() => {
let conn = conn.context("failed to accept connection").unwrap();
handshake.spawn(async move {
let conn = conn.await.context("failed to accept h3 connection")?;
let mut conn = h3::server::builder()
.enable_webtransport(true)
.enable_connect(true)
.enable_datagram(true)
.max_webtransport_sessions(1)
.send_grease(true)
.build(h3_quinn::Connection::new(conn))
.await
.context("failed to create h3 server")?;
let (req, stream) = conn
.accept()
.await
.context("failed to accept h3 session")?
.context("failed to accept h3 request")?;
let ext = req.extensions();
anyhow::ensure!(req.method() == http::Method::CONNECT, "expected CONNECT request");
anyhow::ensure!(
ext.get::<h3::ext::Protocol>() == Some(&h3::ext::Protocol::WEB_TRANSPORT),
"expected WebTransport CONNECT"
);
// Let the application decide if we accept this CONNECT request.
Ok(Connect { conn, req, stream })
});
},
// Return any mostly finished WebTransport handshakes.
res = handshake.join_next(), if !handshake.is_empty() => {
let res = res.expect("no tasks").expect("task aborted");
match res {
Ok(connect_request) => return Ok(connect_request),
Err(err) => log::warn!("failed to accept session: {:?}", err),
}
},
)
}
}
}
// The WebTransport CONNECT has arrived, and we need to decide if we accept it.
pub struct Connect {
// Inspect to decide whether to accept() or reject() the session.
req: http::Request<()>,
conn: h3::server::Connection<h3_quinn::Connection, Bytes>,
stream: h3::server::RequestStream<h3_quinn::BidiStream<Bytes>, Bytes>,
}
impl Connect {
// Accept the WebTransport session.
pub async fn accept(self) -> anyhow::Result<AcceptSetup<Server>> {
let session = h3_webtransport::server::WebTransportSession::accept(self.req, self.stream, self.conn).await?;
let mut session = Server { server: session };
let (control_stream_send, control_stream_recv) = moq_transport::accept_bidi(&mut session)
.await
.context("failed to accept bidi stream")?
.unwrap();
Ok(moq_transport::Session::accept(session).await?)
}
// Reject the WebTransport session with a HTTP response.
pub async fn reject(mut self, resp: http::Response<()>) -> anyhow::Result<()> {
self.stream.send_response(resp).await?;
Ok(())
}
}
impl webtransport_generic::Connection for Server {
type Error = anyhow::Error;
type SendStream = QuinnSendStream;
type RecvStream = QuinnRecvStream;
fn poll_accept_uni(
&mut self,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Result<Option<Self::RecvStream>, Self::Error>> {
let fut = self.server.accept_uni();
let fut = std::pin::pin!(fut);
fut.poll(cx)
.map_ok(|opt| opt.map(|(_, s)| QuinnRecvStream::new(s)))
.map_err(|e| anyhow::anyhow!("{:?}", e))
}
fn poll_accept_bidi(
&mut self,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Result<Option<(Self::SendStream, Self::RecvStream)>, Self::Error>> {
let fut = self.server.accept_bi();
let fut = std::pin::pin!(fut);
let res = std::task::ready!(fut.poll(cx).map_err(|e| anyhow::anyhow!("{:?}", e)));
match res {
Ok(Some(AcceptedBi::Request(_, _))) => {
std::task::Poll::Ready(Err(anyhow::anyhow!("received new session whils accepting bidi stream")))
}
Ok(Some(AcceptedBi::BidiStream(_, s))) => {
let (send, recv) = s.split();
std::task::Poll::Ready(Ok(Some((QuinnSendStream::new(send), QuinnRecvStream::new(recv)))))
}
Ok(None) => std::task::Poll::Ready(Ok(None)),
Err(e) => std::task::Poll::Ready(Err(e)),
}
}
fn poll_open_bidi(
&mut self,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Result<(Self::SendStream, Self::RecvStream), Self::Error>> {
let fut = self.server.open_bi(self.server.session_id());
let fut = std::pin::pin!(fut);
fut.poll(cx)
.map_ok(|s| {
let (send, recv) = s.split();
(QuinnSendStream::new(send), QuinnRecvStream::new(recv))
})
.map_err(|e| anyhow::anyhow!("{:?}", e))
}
fn poll_open_uni(
&mut self,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Result<Self::SendStream, Self::Error>> {
let fut = self.server.open_uni(self.server.session_id());
let fut = std::pin::pin!(fut);
fut.poll(cx)
.map_ok(|s| QuinnSendStream::new(s))
.map_err(|e| anyhow::anyhow!("{:?}", e))
}
fn close(&mut self, _code: u32, _reason: &[u8]) {
todo!("not implemented")
}
}

View File

@ -18,3 +18,7 @@ categories = [ "multimedia", "network-programming", "web-programming" ]
bytes = "1"
thiserror = "1.0.21"
log = "0.4"
tokio = { version = "1.27", features = ["full"] }
anyhow = "1.0.70"
webtransport-generic = { version = "0.2", path = "../../webtransport-rs/webtransport-generic" }
futures = "0.3"

View File

@ -1,7 +1,9 @@
mod coding;
mod control;
mod object;
mod network;
pub use coding::*;
pub use control::*;
pub use object::*;
pub use network::*;

View File

@ -0,0 +1,101 @@
use crate::{Decode, DecodeError, Encode, Message};
use webtransport_generic::{RecvStream, SendStream};
use bytes::{Buf, BytesMut};
use std::future;
use std::io::Cursor;
use std::sync::Arc;
use tokio::sync::Mutex;
use anyhow::Context;
pub struct SendControl<S: SendStream> {
stream: S,
buf: BytesMut, // reuse a buffer to encode messages.
}
impl<S: SendStream> SendControl<S> {
pub fn new(stream: S) -> Self {
Self {
buf: BytesMut::new(),
stream,
}
}
pub async fn send<T: Into<Message>>(&mut self, msg: T) -> anyhow::Result<()> {
let msg = msg.into();
log::info!("sending message: {:?}", msg);
self.buf.clear();
msg.encode(&mut self.buf)?;
// TODO make this work with select!
self.stream
.send(&mut self.buf)
.await
.context("error sending control message")?;
Ok(())
}
// Helper that lets multiple threads send control messages.
pub fn share(self) -> SharedControl<S> {
SharedControl {
stream: Arc::new(Mutex::new(self)),
}
}
}
// Helper that allows multiple threads to send control messages.
// There's no equivalent for receiving since only one thread should be receiving at a time.
#[derive(Clone)]
pub struct SharedControl<S: SendStream> {
stream: Arc<Mutex<SendControl<S>>>,
}
impl<S: SendStream> SharedControl<S> {
pub async fn send<T: Into<Message>>(&mut self, msg: T) -> anyhow::Result<()> {
let mut stream = self.stream.lock().await;
stream.send(msg).await
}
}
pub struct RecvControl<R: RecvStream> {
stream: R,
buf: BytesMut, // data we've read but haven't fully decoded yet
}
impl<R: RecvStream> RecvControl<R> {
pub fn new(stream: R) -> Self {
Self {
buf: BytesMut::new(),
stream,
}
}
// Read the next full message from the stream.
pub async fn recv(&mut self) -> anyhow::Result<Message> {
loop {
// Read the contents of the buffer
let mut peek = Cursor::new(&self.buf);
match Message::decode(&mut peek) {
Ok(msg) => {
// We've successfully decoded a message, so we can advance the buffer.
self.buf.advance(peek.position() as usize);
log::info!("received message: {:?}", msg);
return Ok(msg);
}
Err(DecodeError::UnexpectedEnd) => {
// The decode failed, so we need to append more data.
future::poll_fn(|cx| self.stream.poll_recv(cx, &mut self.buf))
.await
.context("error receiving control message")?;
}
Err(e) => return Err(e.into()),
}
}
}
}

View File

@ -0,0 +1,7 @@
mod control;
mod objects;
mod server;
pub use control::*;
pub use objects::*;
pub use server::*;

View File

@ -0,0 +1,103 @@
use crate::{Decode, DecodeError, Encode, Object};
use anyhow::Context;
use bytes::{Buf, BytesMut};
use futures::StreamExt;
use futures::TryStreamExt;
use std::{
io::Cursor,
pin::Pin,
task::{ready, Poll},
};
use tokio::task::JoinSet;
use webtransport_generic::{AsyncRecvStream, AsyncSendStream, AsyncSession};
// TODO support clients
pub struct SendObjects<S: AsyncSession> {
session: S,
// A reusable buffer for encoding messages.
buf: BytesMut,
}
impl<S: AsyncSession> SendObjects<S> {
pub fn new(session: S) -> Self {
Self {
session,
buf: BytesMut::new(),
}
}
pub async fn send(&mut self, header: Object) -> anyhow::Result<S::SendStream> {
self.buf.clear();
header.encode(&mut self.buf).unwrap();
let mut stream = self.session.open_uni().await.context("failed to open uni stream")?;
stream
.send(&mut self.buf)
.await
.context("failed to send data on stream")?;
Ok(stream)
}
}
pub struct RecvObjects<S: AsyncSession> {
session: S,
objects: JoinSet<anyhow::Result<(Object, S::RecvStream)>>,
}
impl<S: AsyncSession + Clone> RecvObjects<S> {
pub fn new(session: S) -> Self {
let streams = futures::stream::unfold(session.clone(), |mut session| async move {
match session.accept_uni().await {
Ok(stream) => Some((stream, session)),
Err(e) => None,
}
});
let objects = streams.map(|mut stream| async move {});
// Decode the object header for up to 16 streams in parallel.
// Otherwise, a lost packet for the first chunk of a stream would block future streams.
let objects = objects.buffer_unordered(16);
let objects = Box::pin(objects);
//try_buffer_unordered
let objects = JoinSet::new();
Self { session, objects }
}
pub async fn next(&mut self) -> anyhow::Result<(Object, S::RecvStream)> {
loop {
tokio::select! {
res = self.objects.join_next(), if !self.objects.is_empty() => {
return res.unwrap()?;
},
res = self.session.accept_uni() => {
let stream = res?;
self.objects.spawn(async move { Self::fetch(stream).await });
},
}
}
}
async fn fetch(mut stream: S::RecvStream) -> anyhow::Result<(Object, S::RecvStream)> {
let mut buf = Vec::with_capacity(64);
loop {
stream.recv(&mut buf).await?.context("no more data")?;
let mut peek = Cursor::new(&buf);
match Object::decode(&mut peek) {
Ok(header) => return Ok((header, stream)),
Err(DecodeError::UnexpectedEnd) => continue,
Err(err) => return Err(err.into()),
}
}
}
}

View File

@ -0,0 +1,66 @@
/*
use crate::{Message, SetupClient, SetupServer};
use anyhow::Context;
use webtransport_generic::Session as Generic;
use super::{RecvControl, RecvObjects, SendControl, SendObjects};
pub struct Session<S: Generic> {
pub send_control: SendControl<S::SendStream>,
pub recv_control: RecvControl<S::RecvStream>,
pub send_objects: SendObjects<S>,
pub recv_objects: RecvObjects<S>,
}
impl<S: Generic + Send> Session<S> {
pub async fn accept(
session: S,
) -> anyhow::Result<AcceptSetup<S>> {
let send_objects = SendObjects::new(session.clone());
let recv_objects = RecvObjects::new(session.clone());
let setup_client = match recv_control await.context("failed to read SETUP")? {
Message::SetupClient(setup) => setup,
_ => anyhow::bail!("expected CLIENT SETUP"),
};
Ok(AcceptSetup {
setup_client,
control,
objects,
})
}
pub fn split(self) -> (Control<C>, Objects<C>) {
(self.control, self.objects)
}
}
pub struct AcceptSetup<C: Generic + Send> {
setup_client: SetupClient,
control: Control<C>,
objects: Objects<C>,
}
impl<C: Generic + Send> AcceptSetup<C> {
// Return the setup message we received.
pub fn setup(&self) -> &SetupClient {
&self.setup_client
}
// Accept the session with our own setup message.
pub async fn accept(mut self, setup_server: SetupServer) -> anyhow::Result<Session<C>> {
self.control.send(setup_server).await?;
Ok(Session {
control: self.control,
objects: self.objects,
})
}
pub async fn reject(self) -> anyhow::Result<()> {
// TODO Close the QUIC connection with an error code.
Ok(())
}
}
*/

View File

@ -16,15 +16,15 @@ categories = [ "multimedia", "network-programming", "web-programming" ]
[dependencies]
moq-transport = { path = "../moq-transport" }
moq-transport-quinn = { path = "../moq-transport-quinn" }
webtransport-generic = "0.2"
bytes = "1"
tokio = "1.27"
mp4 = "0.13.0"
anyhow = "1.0.70"
log = "0.4" # TODO remove
# QUIC stuff
quinn = "0.10"
ring = "0.16.20"
rustls = "0.21.2"
rustls-pemfile = "1.0.2"

View File

@ -2,12 +2,13 @@ use std::collections::HashMap;
use std::sync::{Arc, Mutex};
use std::time;
use tokio::io::AsyncReadExt;
use bytes::Buf;
use webtransport_generic::{Connection, RecvStream};
use tokio::sync::mpsc;
use tokio::task::JoinSet; // lock across await boundaries
use moq_transport::{Announce, AnnounceError, AnnounceOk, Object, Subscribe, SubscribeError, SubscribeOk, VarInt};
use moq_transport_quinn::{RecvObjects, RecvStream};
use moq_transport::{Announce, AnnounceError, AnnounceOk, Object, Subscribe, SubscribeError, SubscribeOk, VarInt, RecvObjects};
use anyhow::Context;
@ -16,9 +17,9 @@ use crate::model::{broadcast, segment, track};
use crate::source::Source;
// TODO experiment with making this Clone, so every task can have its own copy.
pub struct Session {
pub struct Session<C: Connection + Send> {
// Used to receive objects.
objects: RecvObjects,
objects: RecvObjects<C>,
// Used to send and receive control messages.
control: control::Component<control::Contribute>,
@ -36,9 +37,9 @@ pub struct Session {
run_segments: JoinSet<anyhow::Result<()>>, // receiving objects
}
impl Session {
impl<R: RecvStream + Send + 'static, C: Connection<RecvStream = R> + Send> Session<C> {
pub fn new(
objects: RecvObjects,
objects: RecvObjects<C>,
control: control::Component<control::Contribute>,
broker: broker::Broadcasts,
) -> Self {
@ -63,7 +64,7 @@ impl Session {
},
object = self.objects.recv() => {
let (object, stream) = object.context("failed to receive object")?;
let res = self.receive_object(object, stream).await;
let res = self.receive_object(object, Box::new(stream)).await;
if let Err(err) = res {
log::error!("failed to receive object: {:?}", err);
}
@ -88,7 +89,7 @@ impl Session {
}
}
async fn receive_object(&mut self, object: Object, stream: RecvStream) -> anyhow::Result<()> {
async fn receive_object(&mut self, object: Object, stream: Box<R>) -> anyhow::Result<()> {
let track = object.track;
let segment = segment::Info {
@ -111,16 +112,18 @@ impl Session {
Ok(())
}
async fn run_segment(mut segment: segment::Publisher, mut stream: RecvStream) -> anyhow::Result<()> {
let mut buf = [0u8; 32 * 1024];
async fn run_segment(mut segment: segment::Publisher, mut stream: Box<R>) -> anyhow::Result<()> {
loop {
let size = stream.read(&mut buf).await.context("failed to read from stream")?;
if size == 0 {
let mut b = bytes::BytesMut::new();
let stream_finished = !moq_transport::recv(stream.as_mut(), &mut b)
.await
.map_err(|e| anyhow::anyhow!("{:?}", e.into()))
.context("error receiving control message")?;
if stream_finished {
return Ok(());
}
let chunk = buf[..size].to_vec();
segment.fragments.push(chunk.into())
segment.fragments.push(b.chunk().to_vec().into())
}
}
@ -174,7 +177,7 @@ impl Session {
}
}
impl Drop for Session {
impl<C: Connection + Send> Drop for Session<C> {
fn drop(&mut self) {
// Unannounce all broadcasts we have announced.
// TODO make this automatic so we can't screw up?

View File

@ -1,17 +1,17 @@
use webtransport_generic::{SendStream, RecvStream};
use tokio::sync::mpsc;
use moq_transport::{Announce, AnnounceError, AnnounceOk, Message, Subscribe, SubscribeError, SubscribeOk};
use moq_transport_quinn::Control;
use moq_transport::{Announce, AnnounceError, AnnounceOk, Message, Subscribe, SubscribeError, SubscribeOk, Control};
pub struct Main {
control: Control,
pub struct Main<S: SendStream, R: RecvStream> {
control: Control<S, R>,
outgoing: mpsc::Receiver<Message>,
contribute: mpsc::Sender<Contribute>,
distribute: mpsc::Sender<Distribute>,
}
impl Main {
impl<S: SendStream, R: RecvStream> Main <S, R> {
pub async fn run(mut self) -> anyhow::Result<()> {
loop {
tokio::select! {
@ -51,7 +51,7 @@ impl<T> Component<T> {
}
// Splits a control stream into two components, based on if it's a message for contribution or distribution.
pub fn split(control: Control) -> (Main, Component<Contribute>, Component<Distribute>) {
pub fn split<S: SendStream, R: RecvStream>(control: Control<S, R>) -> (Main<S, R>, Component<Contribute>, Component<Distribute>) {
let (outgoing_tx, outgoing_rx) = mpsc::channel(1);
let (contribute_tx, contribute_rx) = mpsc::channel(1);
let (distribute_tx, distribute_rx) = mpsc::channel(1);

View File

@ -1,17 +1,17 @@
use anyhow::Context;
use tokio::io::AsyncWriteExt;
use bytes::Buf;
use webtransport_generic::{SendStream, Connection};
use tokio::task::JoinSet; // allows locking across await
use moq_transport::{Announce, AnnounceError, AnnounceOk, Object, Subscribe, SubscribeError, SubscribeOk, VarInt};
use moq_transport_quinn::SendObjects;
use moq_transport::{Announce, AnnounceError, AnnounceOk, Object, Subscribe, SubscribeError, SubscribeOk, VarInt, SendObjects};
use super::{broker, control};
use crate::model::{segment, track};
pub struct Session {
pub struct Session<C: Connection + Send> {
// Objects are sent to the client
objects: SendObjects,
objects: SendObjects<C>,
// Used to send and receive control messages.
control: control::Component<control::Distribute>,
@ -23,9 +23,11 @@ pub struct Session {
run_subscribes: JoinSet<SubscribeError>, // run subscriptions, sending the returned error if they fail
}
impl Session {
impl<S, C> Session<C> where
S: SendStream + Send,
C: Connection<SendStream = S> + Send + 'static {
pub fn new(
objects: SendObjects,
objects: SendObjects<C>,
control: control::Component<control::Distribute>,
broker: broker::Broadcasts,
) -> Self {
@ -119,7 +121,7 @@ impl Session {
Ok(())
}
async fn run_subscribe(objects: SendObjects, track_id: VarInt, mut track: track::Subscriber) -> SubscribeError {
async fn run_subscribe(objects: SendObjects<C>, track_id: VarInt, mut track: track::Subscriber) -> SubscribeError {
let mut tasks = JoinSet::new();
let mut result = None;
@ -154,7 +156,7 @@ impl Session {
}
async fn serve_group(
mut objects: SendObjects,
mut objects: SendObjects<C>,
track_id: VarInt,
mut segment: segment::Subscriber,
) -> anyhow::Result<()> {
@ -169,11 +171,16 @@ impl Session {
// Write each fragment as they are available.
while let Some(fragment) = segment.fragments.next().await {
stream.write_all(fragment.as_slice()).await?;
let mut buf = bytes::Bytes::copy_from_slice(fragment.as_slice());
while buf.has_remaining() {
moq_transport::send(&mut stream, &mut buf)
.await
.map_err(|e| anyhow::anyhow!("{:?}", e.into()))
.context("error sending control message")?;
}
}
// NOTE: stream is automatically closed when dropped
Ok(())
}

View File

@ -1,21 +1,6 @@
use super::{broker, Session};
use super::broker;
use std::{fs, io, net, path, sync, time};
use anyhow::Context;
use tokio::task::JoinSet;
pub struct Server {
// The MoQ transport server.
server: moq_transport_quinn::Server,
// The media sources.
broker: broker::Broadcasts,
// Sessions actively being run.
tasks: JoinSet<anyhow::Result<()>>,
}
use std::{net, path};
pub struct ServerConfig {
pub addr: net::SocketAddr,
@ -24,82 +9,3 @@ pub struct ServerConfig {
pub broker: broker::Broadcasts,
}
impl Server {
// Create a new server
pub fn new(config: ServerConfig) -> anyhow::Result<Self> {
// Read the PEM certificate chain
let certs = fs::File::open(config.cert).context("failed to open cert file")?;
let mut certs = io::BufReader::new(certs);
let certs = rustls_pemfile::certs(&mut certs)?
.into_iter()
.map(rustls::Certificate)
.collect();
// Read the PEM private key
let keys = fs::File::open(config.key).context("failed to open key file")?;
let mut keys = io::BufReader::new(keys);
let mut keys = rustls_pemfile::pkcs8_private_keys(&mut keys)?;
anyhow::ensure!(keys.len() == 1, "expected a single key");
let key = rustls::PrivateKey(keys.remove(0));
let mut tls_config = rustls::ServerConfig::builder()
.with_safe_default_cipher_suites()
.with_safe_default_kx_groups()
.with_protocol_versions(&[&rustls::version::TLS13])
.unwrap()
.with_no_client_auth()
.with_single_cert(certs, key)?;
tls_config.max_early_data_size = u32::MAX;
let alpn: Vec<Vec<u8>> = vec![
b"h3".to_vec(),
b"h3-32".to_vec(),
b"h3-31".to_vec(),
b"h3-30".to_vec(),
b"h3-29".to_vec(),
];
tls_config.alpn_protocols = alpn;
let mut server_config = quinn::ServerConfig::with_crypto(sync::Arc::new(tls_config));
// Enable BBR congestion control
// TODO validate the implementation
let mut transport_config = quinn::TransportConfig::default();
transport_config.keep_alive_interval(Some(time::Duration::from_secs(2)));
transport_config.congestion_controller_factory(sync::Arc::new(quinn::congestion::BbrConfig::default()));
server_config.transport = sync::Arc::new(transport_config);
let server = quinn::Endpoint::server(server_config, config.addr)?;
let broker = config.broker;
let server = moq_transport_quinn::Server::new(server);
let tasks = JoinSet::new();
Ok(Self { server, broker, tasks })
}
pub async fn run(mut self) -> anyhow::Result<()> {
loop {
tokio::select! {
res = self.server.accept() => {
let session = res.context("failed to accept connection")?;
let broker = self.broker.clone();
self.tasks.spawn(async move {
let session: Session = Session::accept(session, broker).await?;
session.run().await
});
},
res = self.tasks.join_next(), if !self.tasks.is_empty() => {
let res = res.expect("no tasks").expect("task aborted");
if let Err(err) = res {
log::error!("session terminated: {:?}", err);
}
},
}
}
}
}

View File

@ -1,49 +1,26 @@
use anyhow::Context;
use webtransport_generic::{SendStream, Connection, RecvStream};
use super::{broker, contribute, control, distribute};
use moq_transport::{Role, SetupServer, Version};
use moq_transport_quinn::Connect;
pub struct Session {
pub struct Session<C: Connection + Send> {
// Split logic into contribution/distribution to reduce the problem space.
contribute: contribute::Session,
distribute: distribute::Session,
contribute: contribute::Session<C>,
distribute: distribute::Session<C>,
// Used to receive control messages and forward to contribute/distribute.
control: control::Main,
control: control::Main<C::SendStream, C::RecvStream>,
}
impl Session {
pub async fn accept(session: Connect, broker: broker::Broadcasts) -> anyhow::Result<Session> {
// Accep the WebTransport session.
// OPTIONAL validate the conn.uri() otherwise call conn.reject()
let session = session
.accept()
.await
.context(": server::Setupfailed to accept WebTransport session")?;
session
.setup()
.versions
.iter()
.find(|v| **v == Version::DRAFT_00)
.context("failed to find supported version")?;
// Choose our role based on the client's role.
let role = match session.setup().role {
Role::Publisher => Role::Subscriber,
Role::Subscriber => Role::Publisher,
Role::Both => Role::Both,
};
let setup = SetupServer {
version: Version::DRAFT_00,
role,
};
let session = session.accept(setup).await?;
impl<R, S, C> Session<C> where
R: RecvStream + Send + 'static,
S: SendStream + Send,
C: Connection<RecvStream = R, SendStream = S> + Send + 'static
{
pub async fn from_transport_session(
session: moq_transport::Session<C>,
broker: broker::Broadcasts,
) -> anyhow::Result<Session<C>> {
let (control, objects) = session.split();
let (objects_send, objects_recv) = objects.split();