feat(cache): set max-age for public accessible static resources

middleware/common.go

@@ -1,6 +1,7 @@
 package middleware
 
 import (
+	"fmt"
 	model "github.com/cloudreve/Cloudreve/v3/models"
 	"github.com/cloudreve/Cloudreve/v3/pkg/hashid"
 	"github.com/cloudreve/Cloudreve/v3/pkg/serializer"
@@ -51,3 +52,11 @@ func Sandbox() gin.HandlerFunc {
 		c.Header("Content-Security-Policy", "sandbox")
 	}
 }
+
+// StaticResourceCache 使用静态资源缓存策略
+func StaticResourceCache() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		c.Header("Cache-Control", fmt.Sprintf("public, max-age=%d", model.GetIntSetting("public_resource_maxage", 86400)))
+
+	}
+}

middleware/common_test.go

@@ -85,3 +85,21 @@ func TestCacheControl(t *testing.T) {
 	TestFunc(c)
 	a.Contains(c.Writer.Header().Get("Cache-Control"), "no-cache")
 }
+
+func TestSandbox(t *testing.T) {
+	a := assert.New(t)
+	TestFunc := Sandbox()
+	rec := httptest.NewRecorder()
+	c, _ := gin.CreateTestContext(rec)
+	TestFunc(c)
+	a.Contains(c.Writer.Header().Get("Content-Security-Policy"), "sandbox")
+}
+
+func TestStaticResourceCache(t *testing.T) {
+	a := assert.New(t)
+	TestFunc := StaticResourceCache()
+	rec := httptest.NewRecorder()
+	c, _ := gin.CreateTestContext(rec)
+	TestFunc(c)
+	a.Contains(c.Writer.Header().Get("Cache-Control"), "public, max-age")
+}