support webdav rename action

internal/webdav/pan_client_proxy.go

@@ -146,4 +146,25 @@ func (p *PanClientProxy) Mkdir(pathStr string, perm os.FileMode) error {
 		return nil
 	}
 	return fmt.Errorf("unknown error")
+}
+
+func (p *PanClientProxy) Rename(oldpath, newpath string) error {
+	oldFile, er := p.cacheFilePath(oldpath)
+	if er != nil {
+		return os.ErrNotExist
+	}
+	_,e := p.PanUser.PanClient().FileRename(p.PanDriveId, oldFile.FileId, path.Base(newpath))
+	if e != nil {
+		return os.ErrInvalid
+	}
+
+	// invalidate parent folder cache
+	p.deleteOneFilesDirectoriesListCache(path.Dir(oldpath))
+
+	// add new name cache
+	oldFile.Path = newpath
+	oldFile.FileName = path.Base(newpath)
+	p.cacheFilePathEntity(oldFile)
+
+	return nil
 }

internal/webdav/webdav_file.go

@@ -126,7 +126,7 @@ func (d WebDavDir) Rename(ctx context.Context, oldName, newName string) error {
 		// Prohibit renaming from or to the virtual root directory.
 		return os.ErrInvalid
 	}
-	return os.Rename(oldName, newName)
+	return d.panClientProxy.Rename(oldName, newName)
 }
 
 func (d WebDavDir) Stat(ctx context.Context, name string) (os.FileInfo, error) {
@@ -135,7 +135,7 @@ func (d WebDavDir) Stat(ctx context.Context, name string) (os.FileInfo, error) {
 		fileItem,e := d.panClientProxy.FileInfoByPath(d.formatAbsoluteName(name))
 		if e != nil {
 			logger.Verboseln("file path not existed: " + d.formatAbsoluteName(name))
-			return nil, e
+			return nil, os.ErrNotExist
 		}
 		*f = NewWebDavFileInfo(fileItem)
 	}