Add Cache-Control header to html and api responses, add no-transform (#20432)

`no-transform` allegedly disables CloudFlare auto-minify and we did not
set caching headers on html or api requests, which seems good to have
regardless.

Transformation is still allowed for asset requests.

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
silverwind 2022-07-23 08:38:03 +02:00 committed by GitHub
parent d9608c4e76
commit 14178c56bb
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5 changed files with 19 additions and 5 deletions

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@ -17,16 +17,23 @@ import (
)
// AddCacheControlToHeader adds suitable cache-control headers to response
func AddCacheControlToHeader(h http.Header, d time.Duration) {
func AddCacheControlToHeader(h http.Header, maxAge time.Duration, additionalDirectives ...string) {
directives := make([]string, 0, 2+len(additionalDirectives))
if setting.IsProd {
h.Set("Cache-Control", "private, max-age="+strconv.Itoa(int(d.Seconds())))
if maxAge == 0 {
directives = append(directives, "no-store")
} else {
directives = append(directives, "private", "max-age="+strconv.Itoa(int(maxAge.Seconds())))
}
} else {
h.Set("Cache-Control", "no-store")
directives = append(directives, "no-store")
// to remind users they are using non-prod setting.
// some users may be confused by "Cache-Control: no-store" in their setup if they did wrong to `RUN_MODE` in `app.ini`.
h.Add("X-Gitea-Debug", "RUN_MODE="+setting.RunMode)
h.Add("X-Gitea-Debug", "CacheControl=no-store")
}
h.Set("Cache-Control", strings.Join(append(directives, additionalDirectives...), ", "))
}
// generateETag generates an ETag based on size, filename and file modification time