fix(medusa, medusa-file-*): Protected uploads for file services (#2433)

packages/medusa/src/interfaces/file-service.ts

@@ -37,6 +37,12 @@ export interface IFileService extends TransactionBaseService {
    * */
   upload(file: Express.Multer.File): Promise<FileServiceUploadResult>
 
+  /**
+   * upload private file to fileservice
+   * @param file Multer file from express multipart/form-data
+   * */
+  uploadProtected(file: Express.Multer.File): Promise<FileServiceUploadResult>
+
   /**
    * remove file from fileservice
    * @param fileData Remove file described by record
@@ -76,6 +82,10 @@ export abstract class AbstractFileService
     fileData: Express.Multer.File
   ): Promise<FileServiceUploadResult>
 
+  abstract uploadProtected(
+    fileData: Express.Multer.File
+  ): Promise<FileServiceUploadResult>
+
   abstract delete(fileData: DeleteFileType): Promise<void>
 
   abstract getUploadStreamDescriptor(