feat: 更新嵌入式文件系统逻辑，支持路径清理和静态资源请求处理，增强前端主题切换能力

atsf_server/router/web-router.go

@@ -7,16 +7,59 @@ import (
 	"embed"
 	"github.com/gin-contrib/static"
 	"github.com/gin-gonic/gin"
+	"io/fs"
 	"net/http"
+	pathpkg "path"
+	"strings"
 )
 
 func setWebRouter(router *gin.Engine, buildFS embed.FS, indexPage []byte) {
+	exportedBuildFS, err := fs.Sub(buildFS, "web/build")
+	if err != nil {
+		panic(err)
+	}
+
 	router.Use(middleware.GlobalWebRateLimit())
 	fileDownloadRoute := router.Group("/")
 	fileDownloadRoute.GET("/upload/:file", middleware.DownloadRateLimit(), controller.DownloadFile)
 	router.Use(middleware.Cache())
 	router.Use(static.Serve("/", common.EmbedFolder(buildFS, "web/build")))
 	router.NoRoute(func(c *gin.Context) {
+		if serveExportedPage(c, exportedBuildFS) {
+			return
+		}
+
+		if isStaticAssetRequest(c.Request.URL.Path) {
+			c.Status(http.StatusNotFound)
+			return
+		}
+
 		c.Data(http.StatusOK, "text/html; charset=utf-8", indexPage)
 	})
 }
+
+func serveExportedPage(c *gin.Context, buildFS fs.FS) bool {
+	requestPath := strings.Trim(c.Request.URL.Path, "/")
+
+	candidates := []string{"index.html"}
+	if requestPath != "" {
+		candidates = []string{
+			requestPath + ".html",
+			pathpkg.Join(requestPath, "index.html"),
+		}
+	}
+
+	for _, candidate := range candidates {
+		content, err := fs.ReadFile(buildFS, candidate)
+		if err == nil {
+			c.Data(http.StatusOK, "text/html; charset=utf-8", content)
+			return true
+		}
+	}
+
+	return false
+}
+
+func isStaticAssetRequest(requestPath string) bool {
+	return strings.HasPrefix(requestPath, "/_next/") || pathpkg.Ext(requestPath) != ""
+}