feat: add stream upload support and related configurations

storage/webdav/stream.go

@@ -0,0 +1,50 @@
+package webdav
+
+// TODO: gowebdav's WriteStream impl cause high memory usage, need to implement our own WriteStream
+// type WebdavWriter struct {
+// 	pipeWriter *io.PipeWriter
+// 	done       chan error
+// 	path       string
+// }
+
+// func (w *WebdavWriter) Write(p []byte) (n int, err error) {
+// 	return w.pipeWriter.Write(p)
+// }
+
+// func (w *WebdavWriter) Close() error {
+// 	if err := w.pipeWriter.Close(); err != nil {
+// 		return err
+// 	}
+// 	if err := <-w.done; err != nil {
+// 		return fmt.Errorf("upload failed: %w", err)
+// 	}
+
+// 	return nil
+// }
+
+// func (w *Webdav) NewUploadStream(ctx context.Context, storagePath string) (io.WriteCloser, error) {
+// 	if err := w.client.MkdirAll(path.Dir(storagePath), os.ModePerm); err != nil {
+// 		logger.L.Errorf("Failed to create directory %s: %v", path.Dir(storagePath), err)
+// 		return nil, ErrFailedToCreateDirectory
+// 	}
+// 	pipeReader, pipeWriter := io.Pipe()
+// 	done := make(chan error, 1)
+// 	go func() {
+// 		defer func() {
+// 			if err := recover(); err != nil {
+// 				done <- fmt.Errorf("panic during upload: %v", err)
+// 			}
+// 		}()
+
+// 		err := w.client.WriteStream(storagePath, pipeReader, os.ModePerm)
+
+// 		pipeReader.Close()
+// 		done <- err
+// 	}()
+
+// 	return &WebdavWriter{
+// 		pipeWriter: pipeWriter,
+// 		done:       done,
+// 		path:       storagePath,
+// 	}, nil
+// }