From 94b595af26d9553365f7c83e43a20c8b1d3db5c7 Mon Sep 17 00:00:00 2001
From: Bel LaPointe <breel@qualtrics.com>
Date: Fri, 17 Sep 2021 08:07:35 -0600
Subject: [PATCH] gomod

---
 go.mod                |  3 +++
 gzipresponsewriter.go | 14 ++++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 go.mod

diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..e87d397
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module local/gziphttp
+
+go 1.16
diff --git a/gzipresponsewriter.go b/gzipresponsewriter.go
index 7ac071d..05467be 100755
--- a/gzipresponsewriter.go
+++ b/gzipresponsewriter.go
@@ -3,6 +3,7 @@ package gziphttp
 import (
 	"compress/gzip"
 	"net/http"
+	"strings"
 )
 
 type GZipResponseWriter struct {
@@ -10,6 +11,19 @@ type GZipResponseWriter struct {
 	gz *gzip.Writer
 }
 
+func Can(r *http.Request) bool {
+	encodings, _ := r.Header["Accept-Encoding"]
+	for _, encoding := range encodings {
+		items := strings.Split(encoding, ",")
+		for _, item := range items {
+			if strings.TrimSpace(item) == "gzip" {
+				return true
+			}
+		}
+	}
+	return false
+}
+
 func New(w http.ResponseWriter) *GZipResponseWriter {
 	w.Header().Add("Content-Type", "text/html")
 	w.Header().Add("Content-Encoding", "gzip")