mirror of
https://github.com/MHSanaei/3x-ui.git
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MHSanaei
3526a65f5d
The engine-wide gzip middleware gave every in-flight request its own compressor of about 1 MiB, and the public /assets bundles let an anonymous client keep a handler blocked in Write until WriteTimeout, so a thousand stalled downloads held a gigabyte. The listener itself took any number of connections, each holding buffers and a goroutine before any login. The bundles are now served from a gzip copy made once per file, with the assets prefix left out of the per-request middleware, and the panel listener closes a new connection once 2048 are open or its source (an IPv4 address or IPv6 /64) holds 256; a loopback reverse proxy counts only toward the total.
89 lines
2.7 KiB
Go
89 lines
2.7 KiB
Go
package middleware
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import (
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"bytes"
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"compress/gzip"
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"io"
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"net/http"
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"net/http/httptest"
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"strings"
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"sync/atomic"
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"testing"
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"testing/fstest"
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"github.com/gin-gonic/gin"
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)
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// readCountingFS counts ReadFile calls, i.e. how often a file gets compressed.
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type readCountingFS struct {
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fstest.MapFS
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reads atomic.Int32
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}
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func (f *readCountingFS) ReadFile(name string) ([]byte, error) {
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f.reads.Add(1)
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return f.MapFS.ReadFile(name)
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}
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func TestGzipStatic(t *testing.T) {
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gin.SetMode(gin.TestMode)
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raw := strings.Repeat("console.log('bundle');", 4096)
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files := &readCountingFS{MapFS: fstest.MapFS{
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"app.js": {Data: []byte(raw)},
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}}
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r := gin.New()
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r.Group("/assets", GzipStatic(files)).StaticFS("/", http.FS(files))
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do := func(method, target, acceptEncoding string) *httptest.ResponseRecorder {
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t.Helper()
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req := httptest.NewRequest(method, target, nil)
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req.Header.Set("Accept-Encoding", acceptEncoding)
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w := httptest.NewRecorder()
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r.ServeHTTP(w, req)
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return w
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}
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t.Run("gzip downloads share one compression", func(t *testing.T) {
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for range 3 {
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w := do(http.MethodGet, "/assets/app.js", "gzip, deflate")
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if w.Code != http.StatusOK || w.Header().Get("Content-Encoding") != "gzip" || w.Header().Get("Vary") != "Accept-Encoding" {
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t.Fatalf("got %d, headers %v", w.Code, w.Header())
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}
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if ct := w.Header().Get("Content-Type"); !strings.Contains(ct, "javascript") {
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t.Errorf("Content-Type = %q, want the bundle's own type", ct)
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}
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zr, err := gzip.NewReader(bytes.NewReader(w.Body.Bytes()))
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if err != nil {
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t.Fatal(err)
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}
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if plain, _ := io.ReadAll(zr); string(plain) != raw {
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t.Fatal("decompressed body differs from the bundle")
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}
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}
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if n := files.reads.Load(); n != 1 {
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t.Errorf("bundle compressed %d times, want once", n)
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}
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})
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t.Run("HEAD sends headers only", func(t *testing.T) {
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w := do(http.MethodHead, "/assets/app.js", "gzip")
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if w.Code != http.StatusOK || w.Body.Len() != 0 || w.Header().Get("Content-Encoding") != "gzip" {
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t.Errorf("got %d, %d body bytes, headers %v", w.Code, w.Body.Len(), w.Header())
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}
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})
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t.Run("without Accept-Encoding the static route serves the plain file", func(t *testing.T) {
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w := do(http.MethodGet, "/assets/app.js", "")
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if w.Code != http.StatusOK || w.Header().Get("Content-Encoding") != "" || w.Body.String() != raw {
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t.Errorf("got %d, Content-Encoding %q, %d body bytes", w.Code, w.Header().Get("Content-Encoding"), w.Body.Len())
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}
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})
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t.Run("unknown name is left to the static route", func(t *testing.T) {
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w := do(http.MethodGet, "/assets/none.js", "gzip")
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if w.Code != http.StatusNotFound || w.Header().Get("Content-Encoding") != "" {
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t.Errorf("got %d, Content-Encoding %q, want 404 plain", w.Code, w.Header().Get("Content-Encoding"))
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}
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})
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}
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