mirror of
https://github.com/gravitational/teleport.git
synced 2026-09-19 01:58:44 +08:00
47 lines
1.6 KiB
Go
47 lines
1.6 KiB
Go
/*
|
|
* Teleport
|
|
* Copyright (C) 2023 Gravitational, Inc.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package web
|
|
|
|
import (
|
|
"net/http"
|
|
"path"
|
|
"slices"
|
|
"time"
|
|
|
|
"github.com/gravitational/teleport/lib/httplib"
|
|
)
|
|
|
|
// makeCacheHandler sets cache headers for cacheable file types.
|
|
func makeCacheHandler(handler http.Handler, etag string) http.Handler {
|
|
cachedFileTypes := []string{".woff", ".woff2", ".ttf"}
|
|
|
|
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
// We can cache fonts "permanently" because we don't expect them to change. The rest of our
|
|
// assets will have an ETag associated with them (teleport version) that will allow us
|
|
// to conditionally send the updated assets or a 304 status (Not Modified) response
|
|
if slices.Contains(cachedFileTypes, path.Ext(r.URL.Path)) {
|
|
httplib.SetCacheHeaders(w.Header(), time.Hour*24*365 /* one year */)
|
|
} else {
|
|
httplib.SetEntityTagCacheHeaders(w.Header(), etag)
|
|
}
|
|
|
|
handler.ServeHTTP(w, r)
|
|
})
|
|
}
|