Feat: custom error for general layer codes

service/explorer/file.go

@@ -0,0 +1,33 @@
+package explorer
+
+import (
+	"context"
+	"github.com/HFO4/cloudreve/pkg/filesystem"
+	"github.com/HFO4/cloudreve/pkg/serializer"
+	"github.com/gin-gonic/gin"
+)
+
+// FileDownloadService 文件下载服务，path为文件完整路径
+type FileDownloadService struct {
+	Path string `form:"path" binding:"required,min=1,max=65535"`
+}
+
+// Download 文件下载
+func (service *FileDownloadService) Download(ctx context.Context, c *gin.Context) serializer.Response {
+	// 创建文件系统
+	fs, err := filesystem.NewFileSystemFromContext(c)
+	if err != nil {
+		return serializer.Err(serializer.CodePolicyNotAllowed, err.Error(), err)
+
+	}
+
+	_, err = fs.Download(ctx, service.Path)
+
+	if err != nil {
+		return serializer.Err(serializer.CodeNotSet, err.Error(), err)
+	}
+
+	return serializer.Response{
+		Code: 0,
+	}
+}