34 lines
1,000 B
Go
34 lines
1,000 B
Go
// Copyright 2018 Frédéric Guillot. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package response
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import (
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"net/http"
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"time"
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)
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// Redirect redirects the user to another location.
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func Redirect(w http.ResponseWriter, r *http.Request, path string) {
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http.Redirect(w, r, path, http.StatusFound)
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}
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// NotModified sends a response with a 304 status code.
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func NotModified(w http.ResponseWriter) {
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w.WriteHeader(http.StatusNotModified)
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}
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// Cache returns a response with caching headers.
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func Cache(w http.ResponseWriter, r *http.Request, mimeType, etag string, content []byte, duration time.Duration) {
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w.Header().Set("Content-Type", mimeType)
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w.Header().Set("ETag", etag)
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w.Header().Set("Cache-Control", "public")
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w.Header().Set("Expires", time.Now().Add(duration).Format(time.RFC1123))
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if etag == r.Header.Get("If-None-Match") {
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w.WriteHeader(http.StatusNotModified)
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} else {
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w.Write(content)
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}
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}
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