case 'skydrive':
     case 'sky-drive':
     case 'onedrive':
         $serviceEditDoc = CWebDavLogOnlineEditBase::SKYDRIVE_SERVICE_NAME;
         break;
     case 'l':
     case 'local':
         $serviceEditDoc = CWebDavLogOnlineEditBase::LOCAL_SERVICE_NAME;
         break;
     default:
         $serviceEditDoc = CWebDavLogOnlineEditBase::GOOGLE_SERVICE_NAME;
         break;
 }
 //check: this document edit by another user (with another service?)
 $wdElement = $ob->GetObject(array('check_permissions' => false), false);
 $lastSession = CWebDavLogOnlineEdit::getOnlineLastSession(array('IBLOCK_ID' => $wdElement['element_array']['IBLOCK_ID'], 'SECTION_ID' => $wdElement['element_array']['IBLOCK_SECTION_ID'], 'ELEMENT_ID' => $wdElement['element_array']['ID']));
 unset($wdElement);
 if ($lastSession && $lastSession['SERVICE'] != CWebDavLogOnlineEditBase::LOCAL_SERVICE_NAME) {
     $serviceEditDoc = $lastSession['SERVICE'];
     unset($lastSession);
 }
 if ($serviceEditDoc == CWebDavLogOnlineEditBase::DEFAULT_SERVICE_NAME) {
     $serviceEditDoc = CWebDavTools::getServiceEditDocForCurrentUser();
 }
 $editComponentParams = array('webdav' => $ob, 'fileId' => (int) $_REQUEST['f'], 'createDoc' => !empty($_REQUEST['createDoc']), 'action' => $_REQUEST['action']);
 if ($serviceEditDoc == CWebDavLogOnlineEditBase::GOOGLE_SERVICE_NAME) {
     $APPLICATION->RestartBuffer();
     $APPLICATION->IncludeComponent('bitrix:webdav.doc.edit.google', '', $editComponentParams);
     include $_SERVER["DOCUMENT_ROOT"] . BX_ROOT . "/modules/main/include/epilog_after.php";
     die;
 } elseif ($serviceEditDoc == CWebDavLogOnlineEditBase::SKYDRIVE_SERVICE_NAME) {
 protected function getOnlineLastSession()
 {
     if ($this->isExclusiveEdit()) {
         return array();
     }
     $webdav = $this->getWebdav();
     return CWebDavLogOnlineEdit::getOnlineLastSession(array('IBLOCK_ID' => $webdav->arParams['element_array']['IBLOCK_ID'], 'SECTION_ID' => $webdav->arParams['element_array']['IBLOCK_SECTION_ID'], 'ELEMENT_ID' => $webdav->arParams['element_array']['ID']), $this->getServiceName());
 }