add expect: 100-continue support #141

actix-http/src/h1/expect.rs

@@ -0,0 +1,36 @@
+use actix_service::{NewService, Service};
+use futures::future::{ok, FutureResult};
+use futures::{Async, Poll};
+
+use crate::error::Error;
+use crate::request::Request;
+
+pub struct ExpectHandler;
+
+impl NewService for ExpectHandler {
+    type Request = Request;
+    type Response = Request;
+    type Error = Error;
+    type Service = ExpectHandler;
+    type InitError = Error;
+    type Future = FutureResult<Self::Service, Self::InitError>;
+
+    fn new_service(&self, _: &()) -> Self::Future {
+        ok(ExpectHandler)
+    }
+}
+
+impl Service for ExpectHandler {
+    type Request = Request;
+    type Response = Request;
+    type Error = Error;
+    type Future = FutureResult<Self::Response, Self::Error>;
+
+    fn poll_ready(&mut self) -> Poll<(), Self::Error> {
+        Ok(Async::Ready(()))
+    }
+
+    fn call(&mut self, req: Request) -> Self::Future {
+        ok(req)
+    }
+}