make Message clonable and expose as public

Cargo.toml

@@ -11,7 +11,7 @@ documentation = "https://actix.rs/api/actix-http/stable/actix_http/"
 categories = ["network-programming", "asynchronous",
               "web-programming::http-server",
               "web-programming::websocket"]
-license = "MIT/Apache-2.0"
+license = "Apache-2.0"
 exclude = [".gitignore", ".travis.yml", ".cargo/config", "appveyor.yml"]
 edition = "2018"
 

src/lib.rs

@@ -94,6 +94,7 @@ pub use self::config::{KeepAlive, ServiceConfig, ServiceConfigBuilder};
 pub use self::error::{Error, ResponseError, Result};
 pub use self::extensions::Extensions;
 pub use self::httpmessage::HttpMessage;
+pub use self::message::{Message, RequestHead, ResponseHead};
 pub use self::request::Request;
 pub use self::response::Response;
 pub use self::service::{SendError, SendResponse};

src/message.rs

@@ -169,6 +169,15 @@ impl<T: Head> Message<T> {
     }
 }
 
+impl<T: Head> Clone for Message<T> {
+    fn clone(&self) -> Self {
+        Message {
+            inner: self.inner.clone(),
+            pool: self.pool,
+        }
+    }
+}
+
 impl<T: Head> std::ops::Deref for Message<T> {
     type Target = T;