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use std::io;
use std::net::SocketAddr;
#[cfg(feature = "compat")]
use http;
use futures::future::{self, Map};
use futures::{Future, Stream, Poll, Sink, StartSend, AsyncSink};
use tokio::reactor::Handle;
use tokio_io::{AsyncRead, AsyncWrite};
use tokio_proto::BindServer;
use tokio_proto::streaming::Message;
use tokio_proto::streaming::pipeline::{Transport, Frame, ServerProto};
use tokio_service::Service;
use {Request, Response};
use proto::{self, request, response};
#[cfg(feature = "compat")]
use proto::Body;
#[cfg(feature = "compat")]
use super::compat;
use super::Http;
impl<B: AsRef<[u8]> + 'static> Http<B> {
pub fn bind_connection<S, I, Bd>(&self,
handle: &Handle,
io: I,
remote_addr: SocketAddr,
service: S)
where S: Service<Request = Request, Response = Response<Bd>, Error = ::Error> + 'static,
Bd: Stream<Item=B, Error=::Error> + 'static,
I: AsyncRead + AsyncWrite + 'static,
{
self.bind_server(handle, io, HttpService {
inner: service,
remote_addr: remote_addr,
})
}
#[cfg(feature = "compat")]
pub fn bind_connection_compat<S, I, Bd>(&self,
handle: &Handle,
io: I,
remote_addr: SocketAddr,
service: S)
where S: Service<Request = http::Request<Body>, Response = http::Response<Bd>, Error = ::Error> + 'static,
Bd: Stream<Item=B, Error=::Error> + 'static,
I: AsyncRead + AsyncWrite + 'static,
{
self.bind_server(handle, io, HttpService {
inner: compat::service(service),
remote_addr: remote_addr,
})
}
}
#[doc(hidden)]
#[allow(missing_debug_implementations)]
pub struct __ProtoRequest(proto::RequestHead);
#[doc(hidden)]
#[allow(missing_debug_implementations)]
pub struct __ProtoResponse(proto::MessageHead<::StatusCode>);
#[doc(hidden)]
#[allow(missing_debug_implementations)]
pub struct __ProtoTransport<T, B>(proto::Conn<T, B, proto::ServerTransaction>);
#[doc(hidden)]
#[allow(missing_debug_implementations)]
pub struct __ProtoBindTransport<T, B> {
inner: future::FutureResult<proto::Conn<T, B, proto::ServerTransaction>, io::Error>,
}
impl<T, B> ServerProto<T> for Http<B>
where T: AsyncRead + AsyncWrite + 'static,
B: AsRef<[u8]> + 'static,
{
type Request = __ProtoRequest;
type RequestBody = proto::Chunk;
type Response = __ProtoResponse;
type ResponseBody = B;
type Error = ::Error;
type Transport = __ProtoTransport<T, B>;
type BindTransport = __ProtoBindTransport<T, B>;
#[inline]
fn bind_transport(&self, io: T) -> Self::BindTransport {
let ka = if self.keep_alive {
proto::KA::Busy
} else {
proto::KA::Disabled
};
let mut conn = proto::Conn::new(io, ka);
conn.set_flush_pipeline(self.pipeline);
if let Some(max) = self.max_buf_size {
conn.set_max_buf_size(max);
}
__ProtoBindTransport {
inner: future::ok(conn),
}
}
}
impl<T, B> Sink for __ProtoTransport<T, B>
where T: AsyncRead + AsyncWrite + 'static,
B: AsRef<[u8]> + 'static,
{
type SinkItem = Frame<__ProtoResponse, B, ::Error>;
type SinkError = io::Error;
#[inline]
fn start_send(&mut self, item: Self::SinkItem)
-> StartSend<Self::SinkItem, io::Error> {
let item = match item {
Frame::Message { message, body } => {
Frame::Message { message: message.0, body: body }
}
Frame::Body { chunk } => Frame::Body { chunk: chunk },
Frame::Error { error } => Frame::Error { error: error },
};
match try!(self.0.start_send(item)) {
AsyncSink::Ready => Ok(AsyncSink::Ready),
AsyncSink::NotReady(Frame::Message { message, body }) => {
Ok(AsyncSink::NotReady(Frame::Message {
message: __ProtoResponse(message),
body: body,
}))
}
AsyncSink::NotReady(Frame::Body { chunk }) => {
Ok(AsyncSink::NotReady(Frame::Body { chunk: chunk }))
}
AsyncSink::NotReady(Frame::Error { error }) => {
Ok(AsyncSink::NotReady(Frame::Error { error: error }))
}
}
}
#[inline]
fn poll_complete(&mut self) -> Poll<(), io::Error> {
self.0.poll_complete()
}
#[inline]
fn close(&mut self) -> Poll<(), io::Error> {
self.0.close()
}
}
impl<T, B> Stream for __ProtoTransport<T, B>
where T: AsyncRead + AsyncWrite + 'static,
B: AsRef<[u8]> + 'static,
{
type Item = Frame<__ProtoRequest, proto::Chunk, ::Error>;
type Error = io::Error;
#[inline]
fn poll(&mut self) -> Poll<Option<Self::Item>, io::Error> {
let item = match try_ready!(self.0.poll()) {
Some(item) => item,
None => return Ok(None.into()),
};
let item = match item {
Frame::Message { message, body } => {
Frame::Message { message: __ProtoRequest(message), body: body }
}
Frame::Body { chunk } => Frame::Body { chunk: chunk },
Frame::Error { error } => Frame::Error { error: error },
};
Ok(Some(item).into())
}
}
impl<T, B> Transport for __ProtoTransport<T, B>
where T: AsyncRead + AsyncWrite + 'static,
B: AsRef<[u8]> + 'static,
{
#[inline]
fn tick(&mut self) {
self.0.tick()
}
#[inline]
fn cancel(&mut self) -> io::Result<()> {
self.0.cancel()
}
}
impl<T, B> Future for __ProtoBindTransport<T, B>
where T: AsyncRead + AsyncWrite + 'static,
{
type Item = __ProtoTransport<T, B>;
type Error = io::Error;
#[inline]
fn poll(&mut self) -> Poll<__ProtoTransport<T, B>, io::Error> {
self.inner.poll().map(|a| a.map(__ProtoTransport))
}
}
impl From<Message<__ProtoRequest, proto::TokioBody>> for Request {
#[inline]
fn from(message: Message<__ProtoRequest, proto::TokioBody>) -> Request {
let (head, body) = match message {
Message::WithoutBody(head) => (head.0, None),
Message::WithBody(head, body) => (head.0, Some(body.into())),
};
request::from_wire(None, head, body)
}
}
impl<B> Into<Message<__ProtoResponse, B>> for Response<B> {
#[inline]
fn into(self) -> Message<__ProtoResponse, B> {
let (head, body) = response::split(self);
if let Some(body) = body {
Message::WithBody(__ProtoResponse(head), body.into())
} else {
Message::WithoutBody(__ProtoResponse(head))
}
}
}
struct HttpService<T> {
inner: T,
remote_addr: SocketAddr,
}
impl<T, B> Service for HttpService<T>
where T: Service<Request=Request, Response=Response<B>, Error=::Error>,
B: Stream<Error=::Error>,
B::Item: AsRef<[u8]>,
{
type Request = Message<__ProtoRequest, proto::TokioBody>;
type Response = Message<__ProtoResponse, B>;
type Error = ::Error;
type Future = Map<T::Future, fn(Response<B>) -> Message<__ProtoResponse, B>>;
#[inline]
fn call(&self, message: Self::Request) -> Self::Future {
let (head, body) = match message {
Message::WithoutBody(head) => (head.0, None),
Message::WithBody(head, body) => (head.0, Some(body.into())),
};
let req = request::from_wire(Some(self.remote_addr), head, body);
self.inner.call(req).map(Into::into)
}
}