Do not always require an authority

This fixes connections where a local path is provided, for example when
using UNIX domain sockets.

Signed-off-by: Sascha Grunert <sgrunert@suse.com>

src/server.rs

@@ -1390,19 +1390,6 @@ impl proto::Peer for Peer {
         // Convert the URI
         let mut parts = uri::Parts::default();
 
-        // A request translated from HTTP/1 must not include the :authority
-        // header
-        if let Some(authority) = pseudo.authority {
-            let maybe_authority = uri::Authority::from_maybe_shared(authority.clone().into_inner());
-            parts.authority = Some(maybe_authority.or_else(|why| {
-                malformed!(
-                    "malformed headers: malformed authority ({:?}): {}",
-                    authority,
-                    why,
-                )
-            })?);
-        }
-
         // A :scheme is required, except CONNECT.
         if let Some(scheme) = pseudo.scheme {
             if is_connect {
@@ -1416,13 +1403,6 @@ impl proto::Peer for Peer {
                     why,
                 )
             })?;
-
-            // It's not possible to build an `Uri` from a scheme and path. So,
-            // after validating is was a valid scheme, we just have to drop it
-            // if there isn't an :authority.
-            if parts.authority.is_some() {
-                parts.scheme = Some(scheme);
-            }
         } else if !is_connect {
             malformed!("malformed headers: missing scheme");
         }