feat(search): Optimized search result filtering and paging logic (#9287)

- Introduced the `filteredNodes` list to optimize the node filtering process
- Filtered results based on the page limit during paging
- Modified search logic to ensure nodes are within the user's base path
- Added access permission checks for node metadata
- Adjusted paging logic to avoid redundant node retrieval

server/handles/search.go

@@ -43,28 +43,39 @@ func Search(c *gin.Context) {
 		common.ErrorResp(c, err, 400)
 		return
 	}
-	nodes, total, err := search.Search(c, req.SearchReq)
-	if err != nil {
-		common.ErrorResp(c, err, 500)
-		return
-	}
-	var filteredNodes []model.SearchNode
-	for _, node := range nodes {
-		if !strings.HasPrefix(node.Parent, user.BasePath) {
-			continue
+	var (
+		filteredNodes []model.SearchNode
+	)
+	for len(filteredNodes) < req.PerPage {
+		nodes, _, err := search.Search(c, req.SearchReq)
+		if err != nil {
+			common.ErrorResp(c, err, 500)
+			return
 		}
-		meta, err := op.GetNearestMeta(node.Parent)
-		if err != nil && !errors.Is(errors.Cause(err), errs.MetaNotFound) {
-			continue
+		if len(nodes) == 0 {
+			break
 		}
-		if !common.CanAccessWithRoles(user, meta, path.Join(node.Parent, node.Name), req.Password) {
-			continue
+		for _, node := range nodes {
+			if !strings.HasPrefix(node.Parent, user.BasePath) {
+				continue
+			}
+			meta, err := op.GetNearestMeta(node.Parent)
+			if err != nil && !errors.Is(errors.Cause(err), errs.MetaNotFound) {
+				continue
+			}
+			if !common.CanAccessWithRoles(user, meta, path.Join(node.Parent, node.Name), req.Password) {
+				continue
+			}
+			filteredNodes = append(filteredNodes, node)
+			if len(filteredNodes) >= req.PerPage {
+				break
+			}
 		}
-		filteredNodes = append(filteredNodes, node)
+		req.Page++
 	}
 	common.SuccessResp(c, common.PageResp{
 		Content: utils.MustSliceConvert(filteredNodes, nodeToSearchResp),
-		Total:   total,
+		Total:   int64(len(filteredNodes)),
 	})
 }