// Validate and sanitize the relative path (backend-specific)
$relPath = $this->resolveContainerPath( $shortCont, $relPath );
if ( $relPath !== null ) {
// Validate and sanitize the relative path (backend-specific)
$relPath = $this->resolveContainerPath( $shortCont, $relPath );
if ( $relPath !== null ) {
$container = $this->fullContainerName( $shortCont );
if ( self::isValidContainerName( $container ) ) {
// Validate and sanitize the container name (backend-specific)
$container = $this->fullContainerName( $shortCont );
if ( self::isValidContainerName( $container ) ) {
// Validate and sanitize the container name (backend-specific)