Return signed OSS URLs for site images

services/aftersales_service.go

@@ -146,7 +146,19 @@ func hydrateAftersalesOrder(order *models.AftersalesOrder) {
 	if order == nil {
 		return
 	}
-	order.SiteImages = parseSiteImages(order.SiteImagesJSON)
+	order.SiteImages = siteImageAccessURLs(parseSiteImages(order.SiteImagesJSON))
+}
+
+func siteImageAccessURLs(images []string) []string {
+	if len(images) == 0 {
+		return nil
+	}
+	ossService := NewOSSService()
+	urls := make([]string, 0, len(images))
+	for _, image := range images {
+		urls = append(urls, ossService.AccessURL(image))
+	}
+	return urls
 }
 
 // generateUniqueSerial 生成唯一的售后工单序列号
@@ -385,7 +397,7 @@ func (s *AftersalesService) PublicQuery(serialNumber string) (*models.Aftersales
 		ConfirmedAt:          order.ConfirmedAt,
 		Signature:            order.Signature,
 		ResponsibleSignature: order.ResponsibleSignature,
-		SiteImages:           parseSiteImages(order.SiteImagesJSON),
+		SiteImages:           siteImageAccessURLs(parseSiteImages(order.SiteImagesJSON)),
 	}
 	if order.Technician != nil {
 		view.TechnicianName = order.Technician.Name
@@ -393,7 +405,7 @@ func (s *AftersalesService) PublicQuery(serialNumber string) (*models.Aftersales
 	return view, nil
 }
 
-// UploadSiteImages 上传客户确认现场图片到 OSS 并保存 URL。
+// UploadSiteImages 上传客户确认现场图片到 OSS 并保存 object key。
 func (s *AftersalesService) UploadSiteImages(serialNumber string, files []*multipart.FileHeader) ([]string, error) {
 	normalized := normalizeAftersalesSerial(serialNumber)
 	if len(files) == 0 {
@@ -425,7 +437,7 @@ func (s *AftersalesService) UploadSiteImages(serialNumber string, files []*multi
 	}
 
 	ossService := NewOSSService()
-	uploaded := make([]string, 0, len(files))
+	uploadedKeys := make([]string, 0, len(files))
 	for _, fh := range files {
 		if fh.Size <= 0 {
 			return nil, fmt.Errorf("图片 %s 内容为空", fh.Filename)
@@ -445,21 +457,21 @@ func (s *AftersalesService) UploadSiteImages(serialNumber string, files []*multi
 		}
 
 		objectKey := buildSiteImageObjectKey(cfg.Prefix, normalized, fh.Filename)
-		url, err := ossService.UploadObject(objectKey, file, contentType)
+		err = ossService.UploadObject(objectKey, file, contentType)
 		_ = file.Close()
 		if err != nil {
 			return nil, err
 		}
-		uploaded = append(uploaded, url)
+		uploadedKeys = append(uploadedKeys, objectKey)
 	}
 
-	merged := append(existing, uploaded...)
+	merged := append(existing, uploadedKeys...)
 	order.SiteImagesJSON = encodeSiteImages(merged)
 	if err := database.DB.Save(&order).Error; err != nil {
 		return nil, fmt.Errorf("保存现场图片失败: %w", err)
 	}
 
-	return merged, nil
+	return siteImageAccessURLs(merged), nil
 }
 
 func buildSiteImageObjectKey(prefix string, serialNumber string, filename string) string {