2019-02-16 17:46:52 +00:00
|
|
|
|
2017-07-15 06:23:12 +00:00
|
|
|
# hyper-reverse-proxy
|
|
|
|
|
|
|
|
|
|
[](https://travis-ci.org/brendanzab/hyper-reverse-proxy)
|
|
|
|
|
[](https://docs.rs/hyper-reverse-proxy)
|
|
|
|
|
[](https://crates.io/crates/hyper-reverse-proxy)
|
|
|
|
|
[](https://github.com/brendanzab/hyper-reverse-proxy/blob/master/LICENSE)
|
|
|
|
|
|
2019-02-16 17:46:52 +00:00
|
|
|
A simple reverse proxy, to be used with [Hyper].
|
|
|
|
|
|
|
|
|
|
The implementation ensures that [Hop-by-hop headers] are stripped correctly in both directions,
|
|
|
|
|
and adds the client's IP address to a comma-space-separated list of forwarding addresses in the
|
|
|
|
|
`X-Forwarded-For` header.
|
2017-07-15 06:23:12 +00:00
|
|
|
|
2019-02-16 17:46:52 +00:00
|
|
|
The implementation is based on Go's [`httputil.ReverseProxy`].
|
2017-07-15 06:23:12 +00:00
|
|
|
|
2017-07-15 08:41:28 +00:00
|
|
|
[Hyper]: http://hyper.rs/
|
2019-02-16 17:46:52 +00:00
|
|
|
[Hop-by-hop headers]: http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html
|
2017-07-15 06:23:12 +00:00
|
|
|
[`httputil.ReverseProxy`]: https://golang.org/pkg/net/http/httputil/#ReverseProxy
|
2019-02-16 17:46:52 +00:00
|
|
|
|
|
|
|
|
# Example
|
|
|
|
|
|
|
|
|
|
Add these dependencies to your `Cargo.toml` file.
|
|
|
|
|
|
2019-02-16 18:04:46 +00:00
|
|
|
```toml
|
2019-02-16 17:46:52 +00:00
|
|
|
[dependencies]
|
2021-02-23 05:00:53 +00:00
|
|
|
hyper-reverse-proxy = "0.5"
|
|
|
|
|
hyper = "0.13"
|
|
|
|
|
tokio = { version = "0.2", features = ["full"] }
|
2019-02-16 17:46:52 +00:00
|
|
|
```
|
|
|
|
|
|
|
|
|
|
The following example will set up a reverse proxy listening on `127.0.0.1:13900`,
|
|
|
|
|
and will proxy these calls:
|
|
|
|
|
|
|
|
|
|
* `"/target/first"` will be proxied to `http://127.0.0.1:13901`
|
|
|
|
|
|
|
|
|
|
* `"/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.
|
|
|
|
|
|
|
|
|
|
```rust,no_run
|
|
|
|
|
use hyper::server::conn::AddrStream;
|
|
|
|
|
use hyper::{Body, Request, Response, Server};
|
|
|
|
|
use hyper::service::{service_fn, make_service_fn};
|
|
|
|
|
use futures::future::{self, Future};
|
|
|
|
|
|
|
|
|
|
type BoxFut = Box<Future<Item=Response<Body>, Error=hyper::Error> + Send>;
|
|
|
|
|
|
|
|
|
|
fn debug_request(req: Request<Body>) -> BoxFut {
|
|
|
|
|
let body_str = format!("{:?}", req);
|
|
|
|
|
let response = Response::new(Body::from(body_str));
|
|
|
|
|
Box::new(future::ok(response))
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
fn main() {
|
|
|
|
|
|
|
|
|
|
// This is our socket address...
|
|
|
|
|
let addr = ([127, 0, 0, 1], 13900).into();
|
|
|
|
|
|
2019-02-16 18:10:36 +00:00
|
|
|
// A `Service` is needed for every connection.
|
2019-02-16 17:46:52 +00:00
|
|
|
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") {
|
2019-03-11 17:12:28 +00:00
|
|
|
|
|
|
|
|
// will forward requests to port 13901
|
2019-02-16 17:46:52 +00:00
|
|
|
return hyper_reverse_proxy::call(remote_addr.ip(), "http://127.0.0.1:13901", req)
|
2019-03-11 17:12:28 +00:00
|
|
|
|
2019-02-16 17:46:52 +00:00
|
|
|
} else if req.uri().path().starts_with("/target/second") {
|
2019-03-11 17:12:28 +00:00
|
|
|
|
|
|
|
|
// will forward requests to port 13902
|
2019-02-16 17:46:52 +00:00
|
|
|
return hyper_reverse_proxy::call(remote_addr.ip(), "http://127.0.0.1:13902", req)
|
2019-03-11 17:12:28 +00:00
|
|
|
|
2019-02-16 17:46:52 +00:00
|
|
|
} else {
|
|
|
|
|
debug_request(req)
|
|
|
|
|
}
|
|
|
|
|
})
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
let server = Server::bind(&addr)
|
|
|
|
|
.serve(make_svc)
|
|
|
|
|
.map_err(|e| eprintln!("server error: {}", e));
|
|
|
|
|
|
|
|
|
|
println!("Running server on {:?}", addr);
|
|
|
|
|
|
|
|
|
|
// Run this server for... forever!
|
|
|
|
|
hyper::rt::run(server);
|
|
|
|
|
}
|
|
|
|
|
```
|
