use std::sync::Arc; use std::net::SocketAddr; use futures::future::Future; use hyper::server::conn::AddrStream; use hyper::{Body,Request,Response,Server,Uri}; use hyper::header::HOST; use hyper::service::{make_service_fn, service_fn}; use garage_util::error::Error; use garage_model::garage::Garage; pub async fn run_web_server( garage: Arc, shutdown_signal: impl Future, ) -> Result<(), Error> { let addr = &garage.config.s3_web.web_bind_addr; let service = make_service_fn(|conn: &AddrStream| { let garage = garage.clone(); let client_addr = conn.remote_addr(); info!("{:?}", client_addr); async move { Ok::<_, Error>(service_fn(move |req: Request| { let garage = garage.clone(); handler(garage, req, client_addr) })) } }); let server = Server::bind(&addr).serve(service); let graceful = server.with_graceful_shutdown(shutdown_signal); info!("Web server listening on http://{}", addr); graceful.await?; Ok(()) } async fn handler( garage: Arc, req: Request, addr: SocketAddr, ) -> Result, Error> { // Get http authority string (eg. [::1]:3902) let authority = req .headers() .get(HOST) .ok_or(Error::BadRequest(format!("HOST header required")))? .to_str()?; info!("authority is {}", authority); // Get HTTP domain/ip from host //let domain = host.to_socket_ Ok(Response::new(Body::from("hello world\n"))) } /// Extract host from the authority section given by the HTTP host header /// /// The HTTP host contains both a host and a port. /// Extracting the port is more complex than just finding the colon (:) symbol. /// An example of a case where it does not work: [::1]:3902 /// Instead, we use the Uri module provided by Hyper that correctl parses this "authority" section fn authority_to_host(authority: &str) -> Result { // Hyper can not directly parse authority section so we build a fake URL // that contains our authority section let mut uri_str: String = "fake://".to_owned(); uri_str.push_str(authority); match uri_str.parse::() { Ok(uri) => { let host = uri .host() .ok_or(Error::BadRequest(format!("Unable to extract host from authority")))?; Ok(String::from(host)) } _ => Err(Error::BadRequest(format!("Unable to parse authority (host HTTP header)"))), } } #[cfg(test)] mod tests { use super::*; #[test] fn authority_to_host_with_port() -> Result<(), Error> { let domain = authority_to_host("[::1]:3902")?; assert_eq!(domain, "[::1]"); let domain2 = authority_to_host("garage.tld:65200")?; assert_eq!(domain2, "garage.tld"); let domain3 = authority_to_host("127.0.0.1:80")?; assert_eq!(domain3, "127.0.0.1"); Ok(()) } #[test] fn authority_to_host_without_port() -> Result<(), Error> { let domain = authority_to_host("[::1]")?; assert_eq!(domain, "[::1]"); let domain2 = authority_to_host("garage.tld")?; assert_eq!(domain2, "garage.tld"); let domain3 = authority_to_host("127.0.0.1")?; assert_eq!(domain3, "127.0.0.1"); Ok(()) } }