[GITEA] Use maintained gziphandler

- https://github.com/NYTimes/gziphandler doesn't seems to be maintained
anymore and Forgejo already includes
https://github.com/klauspost/compress which provides a maintained and
faster gzip handler fork.
- Enables Jitter to prevent BREACH attacks, as this *seems* to be
possible in the context of Forgejo.

(cherry picked from commit cc2847241d82001babd8d40c87d03169f21c14cd)
(cherry picked from commit 99ba56a8761dd08e08d9499cab2ded1a6b7b970f)

Conflicts:
	go.sum
	https://codeberg.org/forgejo/forgejo/pulls/1581
(cherry picked from commit 711638193daa2311e2ead6249a47dcec47b4e335)
(cherry picked from commit 9c12a37fde6fa84414bf332ff4a066facdb92d38)
(cherry picked from commit 91191aaaedaf999209695e2c6ca4fb256b396686)
(cherry picked from commit 72be417f844713265a94ced6951f8f4b81d0ab1a)
(cherry picked from commit 98497c84da205ec59079e42274aa61199444f7cd)
(cherry picked from commit fba042adb5)

go.mod

@@ -15,7 +15,6 @@ require (
 	gitea.com/lunny/levelqueue v0.4.2-0.20230414023320-3c0159fe0fe4
 	github.com/42wim/sshsig v0.0.0-20211121163825-841cf5bbc121
 	github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358
-	github.com/NYTimes/gziphandler v1.1.1
 	github.com/PuerkitoBio/goquery v1.8.1
 	github.com/alecthomas/chroma/v2 v2.10.0
 	github.com/blakesmith/ar v0.0.0-20190502131153-809d4375e1fb

go.sum

@@ -101,8 +101,6 @@ github.com/Masterminds/sprig/v3 v3.2.3/go.mod h1:rXcFaZ2zZbLRJv/xSysmlgIM1u11eBa
 github.com/Microsoft/go-winio v0.5.2/go.mod h1:WpS1mjBmmwHBEWmogvA2mj8546UReBk4v8QkMxJ6pZY=
 github.com/Microsoft/go-winio v0.6.1 h1:9/kr64B9VUZrLm5YYwbGtUJnMgqWVOdUAXu6Migciow=
 github.com/Microsoft/go-winio v0.6.1/go.mod h1:LRdKpFKfdobln8UmuiYcKPot9D2v6svN5+sAH+4kjUM=
-github.com/NYTimes/gziphandler v1.1.1 h1:ZUDjpQae29j0ryrS0u/B8HZfJBtBQHjqw2rQ2cqUQ3I=
-github.com/NYTimes/gziphandler v1.1.1/go.mod h1:n/CVRwUEOgIxrgPvAQhUUr9oeUtvrhMomdKFjzJNB0c=
 github.com/ProtonMail/go-crypto v0.0.0-20230923063757-afb1ddc0824c h1:kMFnB0vCcX7IL/m9Y5LO+KQYv+t1CQOiFe6+SV2J7bE=
 github.com/ProtonMail/go-crypto v0.0.0-20230923063757-afb1ddc0824c/go.mod h1:EjAoLdwvbIOoOQr3ihjnSoLZRtE8azugULFRteWMNc0=
 github.com/PuerkitoBio/goquery v1.8.1 h1:uQxhNlArOIdbrH1tr0UXwdVFgDcZDrZVdcpygAcwmWM=

modules/web/handler.go

@@ -147,6 +147,16 @@ func toHandlerProvider(handler any) func(next http.Handler) http.Handler {
 		}
 	}
 
+	if hp, ok := handler.(func(next http.Handler) http.HandlerFunc); ok {
+		return func(next http.Handler) http.Handler {
+			h := hp(next) // this handle could be dynamically generated, so we can't use it for debug info
+			return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
+				routing.UpdateFuncInfo(req.Context(), funcInfo)
+				h.ServeHTTP(resp, req)
+			})
+		}
+	}
+
 	provider := func(next http.Handler) http.Handler {
 		return http.HandlerFunc(func(respOrig http.ResponseWriter, req *http.Request) {
 			// wrap the response writer to check whether the response has been written

routers/web/web.go

@@ -48,17 +48,12 @@ import (
 	_ "code.gitea.io/gitea/modules/session" // to registers all internal adapters
 
 	"gitea.com/go-chi/captcha"
-	"github.com/NYTimes/gziphandler"
 	chi_middleware "github.com/go-chi/chi/v5/middleware"
 	"github.com/go-chi/cors"
+	"github.com/klauspost/compress/gzhttp"
 	"github.com/prometheus/client_golang/prometheus"
 )
 
-const (
-	// GzipMinSize represents min size to compress for the body size of response
-	GzipMinSize = 1400
-)
-
 // CorsHandler return a http handler who set CORS options if enabled by config
 func CorsHandler() func(next http.Handler) http.Handler {
 	if setting.CORSConfig.Enabled {
@@ -229,11 +224,11 @@ func Routes() *web.Route {
 	var mid []any
 
 	if setting.EnableGzip {
-		h, err := gziphandler.GzipHandlerWithOpts(gziphandler.MinSize(GzipMinSize))
+		wrapper, err := gzhttp.NewWrapper(gzhttp.RandomJitter(32, 0, false))
 		if err != nil {
-			log.Fatal("GzipHandlerWithOpts failed: %v", err)
+			log.Fatal("gzhttp.NewWrapper failed: %v", err)
 		}
-		mid = append(mid, h)
+		mid = append(mid, wrapper)
 	}
 
 	if setting.Service.EnableCaptcha {

tests/integration/lfs_getobject_test.go

@@ -18,9 +18,9 @@ import (
 	"code.gitea.io/gitea/modules/json"
 	"code.gitea.io/gitea/modules/lfs"
 	"code.gitea.io/gitea/modules/setting"
-	"code.gitea.io/gitea/routers/web"
 	"code.gitea.io/gitea/tests"
 
+	"github.com/klauspost/compress/gzhttp"
 	gzipp "github.com/klauspost/compress/gzip"
 	"github.com/stretchr/testify/assert"
 )
@@ -132,7 +132,7 @@ func TestGetLFSSmallTokenFail(t *testing.T) {
 
 func TestGetLFSLarge(t *testing.T) {
 	defer tests.PrepareTestEnv(t)()
-	content := make([]byte, web.GzipMinSize*10)
+	content := make([]byte, gzhttp.DefaultMinSize*10)
 	for i := range content {
 		content[i] = byte(i % 256)
 	}
@@ -143,7 +143,7 @@ func TestGetLFSLarge(t *testing.T) {
 
 func TestGetLFSGzip(t *testing.T) {
 	defer tests.PrepareTestEnv(t)()
-	b := make([]byte, web.GzipMinSize*10)
+	b := make([]byte, gzhttp.DefaultMinSize*10)
 	for i := range b {
 		b[i] = byte(i % 256)
 	}
@@ -159,7 +159,7 @@ func TestGetLFSGzip(t *testing.T) {
 
 func TestGetLFSZip(t *testing.T) {
 	defer tests.PrepareTestEnv(t)()
-	b := make([]byte, web.GzipMinSize*10)
+	b := make([]byte, gzhttp.DefaultMinSize*10)
 	for i := range b {
 		b[i] = byte(i % 256)
 	}