ContainerImage.Pinniped/internal/httputil/securityheader/securityheader.go

25 lines
928 B
Go

// Copyright 2020 the Pinniped contributors. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
// Package securityheader implements an HTTP middleware for setting security-related response headers.
package securityheader
import "net/http"
// Wrap the provided http.Handler so it sets appropriate security-related response headers.
func Wrap(wrapped http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
h := w.Header()
h.Set("Content-Security-Policy", "default-src 'none'; frame-ancestors 'none'")
h.Set("X-Frame-Options", "DENY")
h.Set("X-XSS-Protection", "1; mode=block")
h.Set("X-Content-Type-Options", "nosniff")
h.Set("Referrer-Policy", "no-referrer")
h.Set("X-DNS-Prefetch-Control", "off")
h.Set("Cache-Control", "no-cache,no-store,max-age=0,must-revalidate")
h.Set("Pragma", "no-cache")
h.Set("Expires", "0")
wrapped.ServeHTTP(w, r)
})
}