add custom Debug impl for HttpResponse

examples/tls/src/main.rs

@@ -13,12 +13,15 @@ use actix_web::*;
 /// somple handle
 fn index(req: &mut HttpRequest, _payload: Payload, state: &()) -> HttpResponse {
     println!("{:?}", req);
-    httpcodes::HTTPOk.with_body("Welcome!")
+    httpcodes::HTTPOk
+        .builder()
+        .content_type("text/plain")
+        .body("Welcome!").unwrap()
 }
 
 fn main() {
     if ::std::env::var("RUST_LOG").is_err() {
-        ::std::env::set_var("RUST_LOG", "actix_web=info");
+        ::std::env::set_var("RUST_LOG", "actix_web=trace");
     }
     let _ = env_logger::init();
     let sys = actix::System::new("ws-example");

src/h1.rs

@@ -83,8 +83,10 @@ impl<T, A, H> Http1<T, A, H>
         // keep-alive timer
         if let Some(ref mut timeout) = self.keepalive_timer {
             match timeout.poll() {
-                Ok(Async::Ready(_)) =>
-                    return Ok(Async::Ready(Http1Result::Done)),
+                Ok(Async::Ready(_)) => {
+                    trace!("Keep-alive timeout, close connection");
+                    return Ok(Async::Ready(Http1Result::Done))
+                }
                 Ok(Async::NotReady) => (),
                 Err(_) => unreachable!(),
             }

src/h1writer.rs

@@ -101,7 +101,7 @@ impl<T: AsyncWrite> Writer for H1Writer<T> {
     fn start(&mut self, req: &mut HttpRequest, msg: &mut HttpResponse)
              -> Result<WriterState, io::Error>
     {
-        trace!("Prepare message status={:?}", msg.status);
+        trace!("Prepare response with status: {:?}", msg.status);
 
         // prepare task
         self.started = true;
@@ -164,6 +164,8 @@ impl<T: AsyncWrite> Writer for H1Writer<T> {
             buffer.extend(b"\r\n");
         }
 
+        trace!("Response: {:?}", msg);
+
         if msg.body().is_binary() {
             let body = msg.replace_body(Body::Empty);
             if let Body::Binary(bytes) = body {

src/h2.rs

@@ -61,12 +61,13 @@ impl<T, A, H> Http2<T, A, H>
     pub fn poll(&mut self) -> Poll<(), ()> {
         // server
         if let State::Server(ref mut server) = self.state {
-
             // keep-alive timer
             if let Some(ref mut timeout) = self.keepalive_timer {
                 match timeout.poll() {
-                    Ok(Async::Ready(_)) =>
-                        return Ok(Async::Ready(())),
+                    Ok(Async::Ready(_)) => {
+                        trace!("Keep-alive timeout, close connection");
+                        return Ok(Async::Ready(()))
+                    }
                     Ok(Async::NotReady) => (),
                     Err(_) => unreachable!(),
                 }

src/h2writer.rs

@@ -101,7 +101,7 @@ impl Writer for H2Writer {
     fn start(&mut self, req: &mut HttpRequest, msg: &mut HttpResponse)
              -> Result<WriterState, io::Error>
     {
-        trace!("Prepare message status={:?}", msg);
+        trace!("Prepare response with status: {:?}", msg.status);
 
         // prepare response
         self.started = true;
@@ -140,6 +140,8 @@ impl Writer for H2Writer {
                 return Err(io::Error::new(io::ErrorKind::Other, "err")),
         }
 
+        trace!("Response: {:?}", msg);
+
         if msg.body().is_binary() {
             if let Body::Binary(bytes) = msg.replace_body(Body::Empty) {
                 self.eof = true;

src/httpresponse.rs

@@ -1,5 +1,5 @@
 //! Pieces pertaining to the HTTP message protocol.
-use std::{io, mem, str};
+use std::{io, mem, str, fmt};
 use std::error::Error as Error;
 use std::convert::Into;
 
@@ -23,7 +23,6 @@ pub enum ConnectionType {
     Upgrade,
 }
 
-#[derive(Debug)]
 /// An HTTP Response
 pub struct HttpResponse {
     pub version: Option<Version>,
@@ -215,6 +214,27 @@ impl From<HttpResponse> for Frame {
     }
 }
 
+impl fmt::Debug for HttpResponse {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        let res = write!(f, "\nHttpResponse {:?} {}{}\n",
+                         self.version, self.status, self.reason.unwrap_or(""));
+        let _ = write!(f, "  encoding: {:?}\n", self.encoding);
+        let _ = write!(f, "  headers:\n");
+        for key in self.headers.keys() {
+            let vals: Vec<_> = self.headers.get_all(key).iter().collect();
+            if vals.len() > 1 {
+                let _ = write!(f, "    {:?}: {:?}\n", key, vals);
+            } else {
+                let _ = write!(f, "    {:?}: {:?}\n", key, vals[0]);
+            }
+        }
+        if let Some(ref err) = self.error {
+            let _ = write!(f, "  error: {}\n", err);
+        }
+        res
+    }
+}
+
 #[derive(Debug)]
 struct Parts {
     version: Option<Version>,

src/task.rs

@@ -197,8 +197,6 @@ impl Task {
                     trace!("IO Frame: {:?}", frame);
                     let res = match frame {
                         Frame::Message(response) => {
-                            trace!("Prepare message status={:?}", response.status);
-
                             // run middlewares
                             let mut response =
                                 if let Some(middlewares) = self.middlewares.take() {