wild-doc-webserver 0.0.5

This is still in development.
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use std::collections::HashMap;
use std::io::Read;
use std::net::SocketAddr;
use std::sync::Arc;
use futures_util::future::join;
use hyper::server::conn::{AddrIncoming, Http};
use hyper::service::{make_service_fn, service_fn};
use hyper::Server;
use std::{ io, sync};
use tokio::net::TcpListener;
use rustls::server::ResolvesServerCertUsingSni;
use once_cell::sync::Lazy;

mod tls;
mod request;
pub(crate) mod response;

#[macro_use]
extern crate serde_derive;

#[derive(Deserialize)]
struct Config{
    wilddoc: Option<ConfigWildDoc>
}
#[derive(Deserialize)]
struct ConfigWildDoc {
    server_addr: Option<String>
    ,server_port: Option<String>
}

static SETTING: Lazy<std::sync::Mutex<HashMap<String, String>>> = Lazy::new(|| {
    let mut m = HashMap::new();
    if let Ok(mut f)=std::fs::File::open("./wild-doc-webserver.toml"){
        let mut toml=String::new();
        if let Ok(_)=f.read_to_string(&mut toml){
            let config: Result<Config, toml::de::Error> = toml::from_str(&toml);
            if let Ok(config)= config{
                if let Some(config)=config.wilddoc{
                    if let Some(server_addr)=config.server_addr{
                        m.insert("server_addr".to_string(), server_addr.to_string());
                    }
                    if let Some(server_port)=config.server_port{
                        m.insert("server_port".to_string(), server_port.to_string());
                    }
                }
            }
        }
    }
    std::sync::Mutex::new(m)
});

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
    let http_server = {
        let addr_http: SocketAddr = ([127, 0, 0, 1], 80).into();
        async move {
            let listener = TcpListener::bind(addr_http).await.unwrap();
            loop {
                let (stream, _) = listener.accept().await.unwrap();
                tokio::task::spawn(async move {
                    if let Err(err)=Http::new().serve_connection(stream, service_fn(move|req|{
                        let addr=SETTING.lock().unwrap().get("server_addr").unwrap().to_owned();
                        let port=SETTING.lock().unwrap().get("server_port").unwrap().to_owned();
                        request::request(addr,port,req)
                    })).await{
                        println!("Error serving connection: {:?}", err);
                    }
                });
            }
        }
    };

    let https_server = {
        // Serve an echo service over HTTPS, with proper error handling.
        let addr_https: SocketAddr = ([127, 0, 0, 1], 443).into();
        async move {
            let cfg = rustls::ServerConfig::builder()
                .with_safe_defaults()
                .with_no_client_auth()
            ;
            let cfg=if true{
                cfg.with_single_cert(
                    tls::load_certs("certificates/localhost/fullchain.pem").unwrap()
                    ,tls::load_private_key("certificates/localhost/privkey.pem").unwrap()
                ).map_err(|e| tls::error(format!("{}", e))).unwrap()
            }else{
                let mut resolver = ResolvesServerCertUsingSni::new();
                tls::add_certificate_to_resolver(
                    "localhost", "localhost", &mut resolver
                );
                cfg.with_cert_resolver(Arc::new(resolver))
            };
            // Configure ALPN to accept HTTP/2, HTTP/1.1 in that order.
            //cfg.alpn_protocols = vec![b"h2".to_vec(), b"http/1.1".to_vec()];

            // Create a TCP listener via tokio.
            Server::builder(
                tls::TlsAcceptor::new(sync::Arc::new(cfg), AddrIncoming::bind(&addr_https)?)
            ).serve(make_service_fn(|_|async{
                Ok::<_, io::Error>(service_fn(|req|{
                    let addr=SETTING.lock().unwrap().get("server_addr").unwrap().to_owned();
                    let port=SETTING.lock().unwrap().get("server_port").unwrap().to_owned();
                    request::request(addr,port,req)
                }))
            })).await
        }
    };
    let _ret = join(https_server, http_server).await;
    Ok(())
}