17495: fix typo.

[arvados.git] / sdk / go / httpserver / logger.go

diff --git a/sdk/go/httpserver/logger.go b/sdk/go/httpserver/logger.go
index 8886f9517dfd5983032235e713a000f5615880b7..5336488df0508039e968d9434cae343f66b26c63 100644 (file)
--- a/sdk/go/httpserver/logger.go
+++ b/sdk/go/httpserver/logger.go
@@ -53,10 +53,21 @@ func LogRequests(h http.Handler) http.Handler {
 
                logRequest(w, req, lgr)
                defer logResponse(w, req, lgr)
-               h.ServeHTTP(w, req)
+               h.ServeHTTP(rewrapResponseWriter(w, wrapped), req)
        })
 }
 
+// Rewrap w to restore additional interfaces provided by wrapped.
+func rewrapResponseWriter(w http.ResponseWriter, wrapped http.ResponseWriter) http.ResponseWriter {
+       if hijacker, ok := wrapped.(http.Hijacker); ok {
+               return struct {
+                       http.ResponseWriter
+                       http.Hijacker
+               }{w, hijacker}
+       }
+       return w
+}
+
 func Logger(req *http.Request) logrus.FieldLogger {
        return ctxlog.FromContext(req.Context())
 }