CWebDavEditDocComponentBase::getFileData

protected function getFileData()
{
	$webdav = $this->getWebdav();

	if(!empty($this->arParams['fileId']) && $this->arParams['fileId'] != $webdav->arParams['file_array']['ID'])
	{
		$entityType = static::getEntityType($webdav->arParams['element_array']['IBLOCK_CODE']);
		$document = $webdav->findHistoryDocumentByFileId(
			$webdav->arParams['element_array']['ID'],
			$this->arParams['fileId'],
			static::getEntityIdDocumentData($entityType, array('ELEMENT_ID' => $webdav->arParams['element_array']['ID']))
		);
		$this->setVersionId((int)$document['ID']);
	}

	list(
		$arFile,
		$options,
		$fullpath,
		$elementName
		) = $webdav->getHistoryFileData($webdav->arParams['element_array']['ID'], $this->getVersionId()?:0, $params);

	return array(
		'name' => $elementName,
		'mimeType' => $arFile['CONTENT_TYPE']?: $webdav->get_mime_type($elementName),
		'src' => $fullpath,
		'size' => $arFile['FILE_SIZE'],
	);
}