http2: implement support for server push
This makes x/net/http2's ResponseWriter implement the new interface,
http.Pusher. This new interface requires Go 1.8. When compiled against
older versions of Go, the ResponseWriter does not have a Push method.
Fixes golang/go#13443
Change-Id: I8486ffe4bb5562a94270ace21e90e8c9a4653da0
Reviewed-on: https://go-review.googlesource.com/29439
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/http2/go18.go b/http2/go18.go
index c2ae167..fd3d652 100644
--- a/http2/go18.go
+++ b/http2/go18.go
@@ -6,6 +6,21 @@
package http2
-import "crypto/tls"
+import (
+ "crypto/tls"
+ "net/http"
+)
func cloneTLSConfig(c *tls.Config) *tls.Config { return c.Clone() }
+
+var _ http.Pusher = (*responseWriter)(nil)
+
+// Push implements http.Pusher.
+func (w *responseWriter) Push(target string, opts *http.PushOptions) error {
+ internalOpts := pushOptions{}
+ if opts != nil {
+ internalOpts.Method = opts.Method
+ internalOpts.Header = opts.Header
+ }
+ return w.push(target, internalOpts)
+}
