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| author | Alex Auvolat <alex@adnab.me> | 2020-04-07 16:26:22 +0200 |
|---|---|---|
| committer | Alex Auvolat <alex@adnab.me> | 2020-04-07 16:26:22 +0200 |
| commit | 061e676136613dce3ffd40c515aa58f99bda30d8 (patch) | |
| tree | 53d441c60605aae7aaefdafb2734d5a446302ce3 /src/rpc_server.rs | |
| parent | 46d5b896e841a209ea92cac23d5f59dfc1ff885d (diff) | |
| download | garage-061e676136613dce3ffd40c515aa58f99bda30d8.tar.gz garage-061e676136613dce3ffd40c515aa58f99bda30d8.zip | |
Refactor; ability to update network config
Diffstat (limited to 'src/rpc_server.rs')
| -rw-r--r-- | src/rpc_server.rs | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/rpc_server.rs b/src/rpc_server.rs new file mode 100644 index 00000000..55c7482b --- /dev/null +++ b/src/rpc_server.rs @@ -0,0 +1,69 @@ +use std::net::SocketAddr; +use std::sync::Arc; + +use bytes::IntoBuf; +use hyper::service::{make_service_fn, service_fn}; +use hyper::server::conn::AddrStream; +use hyper::{Body, Method, Request, Response, Server, StatusCode}; +use futures::future::Future; + +use crate::error::Error; +use crate::proto::Message; +use crate::membership::System; + +fn err_to_msg(x: Result<Message, Error>) -> Message { + match x { + Err(e) => Message::Error(format!("{}", e)), + Ok(msg) => msg, + } +} + +async fn handler(sys: Arc<System>, req: Request<Body>, addr: SocketAddr) -> Result<Response<Body>, Error> { + if req.method() != &Method::POST { + let mut bad_request = Response::default(); + *bad_request.status_mut() = StatusCode::BAD_REQUEST; + return Ok(bad_request); + } + + let whole_body = hyper::body::to_bytes(req.into_body()).await?; + let msg = rmp_serde::decode::from_read::<_, Message>(whole_body.into_buf())?; + + eprintln!("RPC from {}: {:?}", addr, msg); + + let resp = err_to_msg(match &msg { + Message::Ping(ping) => sys.handle_ping(&addr, ping).await, + Message::PullStatus => sys.handle_pull_status().await, + Message::PullConfig => sys.handle_pull_config().await, + Message::AdvertiseNodesUp(adv) => sys.handle_advertise_nodes_up(adv).await, + Message::AdvertiseConfig(adv) => sys.handle_advertise_config(adv).await, + + _ => Ok(Message::Error(format!("Unexpected message: {:?}", msg))), + }); + + Ok(Response::new(Body::from( + rmp_serde::encode::to_vec_named(&resp)? + ))) +} + + +pub async fn run_rpc_server(sys: Arc<System>, shutdown_signal: impl Future<Output=()>) -> Result<(), hyper::Error> { + let bind_addr = ([0, 0, 0, 0], sys.config.rpc_port).into(); + + let service = make_service_fn(|conn: &AddrStream| { + let client_addr = conn.remote_addr(); + let sys = sys.clone(); + async move { + Ok::<_, Error>(service_fn(move |req: Request<Body>| { + let sys = sys.clone(); + handler(sys, req, client_addr) + })) + } + }); + + let server = Server::bind(&bind_addr).serve(service) ; + + let graceful = server.with_graceful_shutdown(shutdown_signal); + println!("RPC server listening on http://{}", bind_addr); + + graceful.await +} |