chore(http/upgrade): upgrade to hyper 1.x

NOTE: there is a comment noting that the upgrade middleware does not
expect to be cloneable. it is unfortunately, however, at odds with the
new bounds expected of extensions.

so, `Http11Upgrade` is now Clone'able, but a comment is left in place
noting this weakened invariant.

it's worth investigating how upgrades have changed since, in more
detail, but for the current moment we are interested in being
especially conservative about changing behavior, and focusing on api
changes like `Body::poll_frame(..)`.

Signed-off-by: katelyn martin <[email protected]>

Cargo.lock

@@ -1894,6 +1894,7 @@ dependencies = [
  "http 1.2.0",
  "http-body",
  "hyper",
+ "hyper-util",
  "linkerd-duplex",
  "linkerd-error",
  "linkerd-http-box",

linkerd/http/upgrade/Cargo.toml

@@ -16,6 +16,10 @@ futures = { version = "0.3", default-features = false }
 http = { workspace = true }
 http-body = { workspace = true }
 hyper = { workspace = true, default-features = false, features = ["client"] }
+hyper-util = { workspace = true, default-features = false, features = [
+    "client",
+    "client-legacy",
+] }
 pin-project = "1"
 tokio = { version = "1", default-features = false }
 tower = { version = "0.4", default-features = false }

linkerd/http/upgrade/src/glue.rs

@@ -1,7 +1,7 @@
 use crate::upgrade::Http11Upgrade;
 use futures::{ready, TryFuture};
-use http_body::Body;
-use hyper::client::connect as hyper_connect;
+use http_body::{Body, Frame};
+use hyper_util::client::legacy::connect as hyper_connect;
 use linkerd_error::{Error, Result};
 use linkerd_http_box::BoxBody;
 use linkerd_io::{self as io, AsyncRead, AsyncWrite};
@@ -63,38 +63,21 @@ where
         self.body.is_end_stream()
     }
 
-    fn poll_data(
+    fn poll_frame(
         self: Pin<&mut Self>,
         cx: &mut Context<'_>,
-    ) -> Poll<Option<Result<Self::Data, Self::Error>>> {
-        // Poll the next chunk from the body.
+    ) -> Poll<Option<Result<Frame<Self::Data>, Self::Error>>> {
+        // Poll the next frame from the body.
         let this = self.project();
         let body = this.body;
-        let data = ready!(body.poll_data(cx));
+        let frame = ready!(body.poll_frame(cx));
 
         // Log errors.
-        if let Some(Err(e)) = &data {
+        if let Some(Err(e)) = &frame {
             debug!("http body error: {}", e);
         }
 
-        Poll::Ready(data)
-    }
-
-    fn poll_trailers(
-        self: Pin<&mut Self>,
-        cx: &mut Context<'_>,
-    ) -> Poll<Result<Option<http::HeaderMap>, Self::Error>> {
-        // Poll the trailers from the body.
-        let this = self.project();
-        let body = this.body;
-        let trailers = ready!(body.poll_trailers(cx));
-
-        // Log errors.
-        if let Err(e) = &trailers {
-            debug!("http trailers error: {}", e);
-        }
-
-        Poll::Ready(trailers)
+        Poll::Ready(frame)
     }
 
     #[inline]

linkerd/http/upgrade/src/upgrade.rs

@@ -22,8 +22,12 @@ use try_lock::TryLock;
 /// inserted into the `Request::extensions()`. If the HTTP1 client service
 /// also detects an upgrade, the two `OnUpgrade` futures will be joined
 /// together with the glue in this type.
+//
 // Note: this relies on their only having been 2 Inner clones, so don't
 // implement `Clone` for this type.
+// XXX(kate): to satisfy new trait bounds when upgrading to hyper 1.x, this type must now be
+// Clone'able.
+#[derive(Clone)]
 pub struct Http11Upgrade {
     half: Half,
     inner: Arc<Inner>,
@@ -50,7 +54,9 @@ struct Inner {
     upgrade_drain_signal: Option<drain::Watch>,
 }
 
-#[derive(Debug)]
+// XXX(kate): to satisfy new trait bounds when upgrading to hyper 1.x, this type must now be
+// Clone'able.
+#[derive(Clone, Debug)]
 enum Half {
     Server,
     Client,
@@ -139,6 +145,9 @@ impl Drop for Inner {
             let both_upgrades = async move {
                 let (server_conn, client_conn) = tokio::try_join!(server_upgrade, client_upgrade)?;
                 trace!("HTTP upgrade successful");
+                use hyper_util::rt::TokioIo;
+                let client_conn = TokioIo::new(client_conn);
+                let server_conn = TokioIo::new(server_conn);
                 if let Err(e) = Duplex::new(client_conn, server_conn).await {
                     info!("tcp duplex error: {}", e)
                 }