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Add Cache-Control header to html and api responses, add no-transform (#20432) (#20459)

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`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.

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
silverwind 2022-07-23 12:58:58 +02:00 committed by GitHub
parent e930d66a9c
commit 2fe0dab2d5
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 19 additions and 5 deletions
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2
modules/context/api.go
View file

@ -16,6 +16,7 @@ import (
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/modules/cache"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/httpcache"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/web/middleware"
@ -268,6 +269,7 @@ func APIContexter() func(http.Handler) http.Handler {
}
}
httpcache.AddCacheControlToHeader(ctx.Resp.Header(), 0, "no-transform")
ctx.Resp.Header().Set(`X-Frame-Options`, setting.CORSConfig.XFrameOptions)
ctx.Data["Context"] = &ctx

2
modules/context/context.go
View file

@ -28,6 +28,7 @@ import (
"code.gitea.io/gitea/modules/base"
mc "code.gitea.io/gitea/modules/cache"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/httpcache"
"code.gitea.io/gitea/modules/json"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
@ -767,6 +768,7 @@ func Contexter() func(next http.Handler) http.Handler {
}
}
httpcache.AddCacheControlToHeader(ctx.Resp.Header(), 0, "no-transform")
ctx.Resp.Header().Set(`X-Frame-Options`, setting.CORSConfig.XFrameOptions)
ctx.Data["CsrfToken"] = ctx.csrf.GetToken()

17
modules/httpcache/httpcache.go
View file

@ -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

2
routers/install/routes.go
View file

@ -9,6 +9,7 @@ import (
"net/http"
"path"
"code.gitea.io/gitea/modules/httpcache"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/public"
"code.gitea.io/gitea/modules/setting"
@ -62,6 +63,7 @@ func installRecovery() func(next http.Handler) http.Handler {
"SignedUserName": "",
}
httpcache.AddCacheControlToHeader(w.Header(), 0, "no-transform")
w.Header().Set(`X-Frame-Options`, setting.CORSConfig.XFrameOptions)
if !setting.IsProd {

1
routers/web/base.go
View file

@ -158,6 +158,7 @@ func Recovery() func(next http.Handler) http.Handler {
store["SignedUserName"] = ""
}
httpcache.AddCacheControlToHeader(w.Header(), 0, "no-transform")
w.Header().Set(`X-Frame-Options`, setting.CORSConfig.XFrameOptions)
if !setting.IsProd {