Include port in Host header

Fixes #88.

src/client/request.rs

@@ -59,7 +59,7 @@ impl Request<Fresh> {
         let stream: S = try_io!(NetworkStream::connect(host.as_slice(), port, url.scheme.as_slice()));
         let stream = ThroughWriter(BufferedWriter::new(stream.dynamic()));
         let mut headers = Headers::new();
-        headers.set(Host(host));
+        headers.set(Host(format!("{}:{}", host, port)));
 
         Ok(Request {
             method: method,
@@ -187,3 +187,33 @@ impl Writer for Request<Streaming> {
         self.body.flush()
     }
 }
+
+
+#[cfg(test)]
+mod tests {
+    use header::common::Host;
+    use method::Get;
+    use net::MockStream;
+    use url::Url;
+    use super::Request;
+
+
+    #[test]
+    fn test_host_header() {
+        fn check_host(url: &str, host_header: &str) {
+            let request = Request::with_stream::<MockStream>(
+                Get,
+                Url::parse(url).unwrap(),
+            ).unwrap();
+
+            assert_eq!(
+                &Host(host_header.to_string()),
+                request.headers().get::<Host>().unwrap()
+            );
+        }
+
+        check_host("http://www.example.com/path", "www.example.com:80");
+        check_host("https://www.example.com/path", "www.example.com:443");
+        check_host("http://www.example.com:8080/path", "www.example.com:8080");
+    }
+}