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Felipe Noronha 2022-03-12 11:58:18 -03:00
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@ -33,52 +33,58 @@ The following example will set up a reverse proxy listening on `127.0.0.1:13900`
and will proxy these calls: and will proxy these calls:
* `"/target/first"` will be proxied to `http://127.0.0.1:13901` * `"/target/first"` will be proxied to `http://127.0.0.1:13901`
* `"/target/second"` will be proxied to `http://127.0.0.1:13902` * `"/target/second"` will be proxied to `http://127.0.0.1:13902`
* All other URLs will be handled by `debug_request` function, that will display request information. * All other URLs will be handled by `debug_request` function, that will display request information.
```rust,no_run ```rust,no_run
use hyper::server::conn::AddrStream; use hyper::server::conn::AddrStream;
use hyper::{Body, Request, Response, Server}; use hyper::{Body, Request, Response, Server, StatusCode};
use hyper::service::{service_fn, make_service_fn}; use hyper::service::{service_fn, make_service_fn};
use futures::future::{self, Future}; use std::{convert::Infallible, net::SocketAddr};
use hyper::http::uri::InvalidUri;
use std::net::IpAddr;
type BoxFut = Box<Future<Item=Response<Body>, Error=hyper::Error> + Send>; fn debug_request(req: Request<Body>) -> Result<Response<Body>, Infallible> {
fn debug_request(req: Request<Body>) -> BoxFut {
let body_str = format!("{:?}", req); let body_str = format!("{:?}", req);
let response = Response::new(Body::from(body_str)); Ok(Response::new(Body::from(body_str)))
Box::new(future::ok(response))
} }
#[tokio::main] async fn handle(client_ip: IpAddr, req: Request<Body>) -> Result<Response<Body>, Infallible> {
fn main() {
// This is our socket address...
let addr = ([127, 0, 0, 1], 13900).into();
// A `Service` is needed for every connection.
let make_svc = make_service_fn(|socket: &AddrStream| {
let remote_addr = socket.remote_addr();
service_fn(move |req: Request<Body>| { // returns BoxFut
if req.uri().path().starts_with("/target/first") { if req.uri().path().starts_with("/target/first") {
// will forward requests to port 13901 // will forward requests to port 13901
return hyper_reverse_proxy::call(remote_addr.ip(), "http://127.0.0.1:13901", req) match hyper_reverse_proxy::call(client_ip, "http://127.0.0.1:13901", req).await {
Ok(response) => {Ok(response)}
Err(error) => {Ok(Response::builder()
.status(StatusCode::INTERNAL_SERVER_ERROR)
.body(Body::empty())
.unwrap())}
}
} else if req.uri().path().starts_with("/target/second") { } else if req.uri().path().starts_with("/target/second") {
// will forward requests to port 13902 // will forward requests to port 13902
return hyper_reverse_proxy::call(remote_addr.ip(), "http://127.0.0.1:13902", req) match hyper_reverse_proxy::call(client_ip, "http://127.0.0.1:13902", req).await {
Ok(response) => {Ok(response)}
Err(_error) => {Ok(Response::builder()
.status(StatusCode::INTERNAL_SERVER_ERROR)
.body(Body::empty())
.unwrap())}
}
} else { } else {
debug_request(req) debug_request(req)
} }
}) }
#[tokio::main]
async fn main() {
let bind_addr = "127.0.0.1:8000";
let addr:SocketAddr = bind_addr.parse().expect("Could not parse ip:port.");
let make_svc = make_service_fn(|conn: &AddrStream| {
let remote_addr = conn.remote_addr().ip();
async move {
Ok::<_, Infallible>(service_fn(move |req| handle(remote_addr, req)))
}
}); });
let server = Server::bind(&addr).serve(make_svc); let server = Server::bind(&addr).serve(make_svc);
// Run this server for... forever!
println!("Running server on {:?}", addr); println!("Running server on {:?}", addr);
if let Err(e) = server.await { if let Err(e) = server.await {
eprintln!("server error: {}", e); eprintln!("server error: {}", e);