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use std::net::SocketAddr;
use anyhow::Result;
use hyper::service::service_fn;
use hyper::{Request, Response, body::Bytes};
use hyper::server::conn::http1 as http;
use hyper_util::rt::TokioIo;
use http_body_util::Full;
use futures::stream::{FuturesUnordered, StreamExt};
use tokio::net::TcpListener;
use tokio::sync::watch;
use crate::config::DavUnsecureConfig;
use crate::login::ArcLoginProvider;
pub struct Server {
bind_addr: SocketAddr,
login_provider: ArcLoginProvider,
}
pub fn new_unsecure(config: DavUnsecureConfig, login: ArcLoginProvider) -> Server {
Server {
bind_addr: config.bind_addr,
login_provider: login,
}
}
impl Server {
pub async fn run(self: Self, mut must_exit: watch::Receiver<bool>) -> Result<()> {
let tcp = TcpListener::bind(self.bind_addr).await?;
tracing::info!("DAV server listening on {:#}", self.bind_addr);
let mut connections = FuturesUnordered::new();
while !*must_exit.borrow() {
let wait_conn_finished = async {
if connections.is_empty() {
futures::future::pending().await
} else {
connections.next().await
}
};
let (socket, remote_addr) = tokio::select! {
a = tcp.accept() => a?,
_ = wait_conn_finished => continue,
_ = must_exit.changed() => continue,
};
tracing::info!("DAV: accepted connection from {}", remote_addr);
let stream = TokioIo::new(socket);
let conn = tokio::spawn(async {
//@FIXME should create a generic "public web" server on which "routers" could be
//abitrarily bound
//@FIXME replace with a handler supporting http2 and TLS
match http::Builder::new().serve_connection(stream, service_fn(router)).await {
Err(e) => tracing::warn!(err=?e, "connection failed"),
Ok(()) => tracing::trace!("connection terminated with success"),
}
});
connections.push(conn);
}
drop(tcp);
tracing::info!("DAV server shutting down, draining remaining connections...");
while connections.next().await.is_some() {}
Ok(())
}
}
async fn router(req: Request<impl hyper::body::Body>) -> Result<Response<Full<Bytes>>> {
let path_segments: Vec<_> = req.uri().path().split("/").filter(|s| *s != "").collect();
match path_segments.as_slice() {
[] => tracing::info!("root"),
[ user ] => tracing::info!(user=user, "user home"),
[ user, coltype ] => tracing::info!(user=user, cat=coltype, "user cat of coll"),
[ user, coltype, colname ] => tracing::info!(user=user, cat=coltype, name=colname, "user coll"),
[ user, coltype, colname, member ] => tracing::info!(user=user, cat=coltype, name=colname, obj=member, "accessing file"),
_ => unimplemented!(),
}
Ok(Response::new(Full::new(Bytes::from("Hello World!"))))
}
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