#![deny(warnings)]
extern crate futures;
extern crate hyper;
extern crate pretty_env_logger;
extern crate tokio_core;
use futures::{Future, Stream};
use hyper::{Body, Chunk, Client, Method, Request, Response, StatusCode};
use hyper::server::{Http, Service};
#[allow(unused)]
use std::ascii::AsciiExt;
static NOTFOUND: &[u8] = b"Not Found";
static URL: &str = "http://127.0.0.1:1337/web_api";
static INDEX: &[u8] = b"test.html";
static LOWERCASE: &[u8] = b"i am a lower case string";
struct ResponseExamples(tokio_core::reactor::Handle);
impl Service for ResponseExamples {
type Request = Request;
type Response = Response;
type Error = hyper::Error;
type Future = Box>;
fn call(&self, req: Self::Request) -> Self::Future {
match (req.method(), req.uri().path()) {
(&Method::GET, "/") | (&Method::GET, "/index.html") => {
let body = Body::from(INDEX);
Box::new(futures::future::ok(Response::new(body)))
},
(&Method::GET, "/test.html") => {
// Run a web query against the web api below
let client = Client::configure().build(&self.0);
let req = Request::builder()
.method(Method::POST)
.uri(URL)
.body(LOWERCASE.into())
.unwrap();
let web_res_future = client.request(req);
Box::new(web_res_future.map(|web_res| {
let body = Body::wrap_stream(web_res.into_body().into_stream().map(|b| {
Chunk::from(format!("before: '{:?}'
after: '{:?}'",
std::str::from_utf8(LOWERCASE).unwrap(),
std::str::from_utf8(&b).unwrap()))
}));
Response::new(body)
}))
},
(&Method::POST, "/web_api") => {
// A web api to run against. Simple upcasing of the body.
let body = Body::wrap_stream(req.into_body().into_stream().map(|chunk| {
let upper = chunk.iter().map(|byte| byte.to_ascii_uppercase())
.collect::>();
Chunk::from(upper)
}));
Box::new(futures::future::ok(Response::new(body)))
},
_ => {
let body = Body::from(NOTFOUND);
Box::new(futures::future::ok(Response::builder()
.status(StatusCode::NOT_FOUND)
.body(body)
.unwrap()))
}
}
}
}
fn main() {
pretty_env_logger::init();
let addr = "127.0.0.1:1337".parse().unwrap();
let mut core = tokio_core::reactor::Core::new().unwrap();
let handle = core.handle();
let client_handle = core.handle();
let serve = Http::new().serve_addr_handle(&addr, &handle, move || Ok(ResponseExamples(client_handle.clone()))).unwrap();
println!("Listening on http://{} with 1 thread.", serve.incoming_ref().local_addr());
let h2 = handle.clone();
handle.spawn(serve.for_each(move |conn| {
h2.spawn(conn.map(|_| ()).map_err(|err| println!("serve error: {:?}", err)));
Ok(())
}).map_err(|_| ()));
core.run(futures::future::empty::<(), ()>()).unwrap();
}