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Diffstat (limited to 'http/response/response.go')
-rw-r--r-- | http/response/response.go | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/http/response/response.go b/http/response/response.go new file mode 100644 index 0000000..066d061 --- /dev/null +++ b/http/response/response.go @@ -0,0 +1,34 @@ +// Copyright 2018 Frédéric Guillot. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +package response + +import ( + "net/http" + "time" +) + +// Redirect redirects the user to another location. +func Redirect(w http.ResponseWriter, r *http.Request, path string) { + http.Redirect(w, r, path, http.StatusFound) +} + +// NotModified sends a response with a 304 status code. +func NotModified(w http.ResponseWriter) { + w.WriteHeader(http.StatusNotModified) +} + +// Cache returns a response with caching headers. +func Cache(w http.ResponseWriter, r *http.Request, mimeType, etag string, content []byte, duration time.Duration) { + w.Header().Set("Content-Type", mimeType) + w.Header().Set("ETag", etag) + w.Header().Set("Cache-Control", "public") + w.Header().Set("Expires", time.Now().Add(duration).Format(time.RFC1123)) + + if etag == r.Header.Get("If-None-Match") { + w.WriteHeader(http.StatusNotModified) + } else { + w.Write(content) + } +} |