CWebDavIblock::Undelete

function Undelete($options)
{
	$this->IsDir($options);

	if(!$this->CheckWebRights("UNDELETE", array('action' => 'undelete', 'arElement' => $this->arParams)))
		return $this->ThrowAccessDenied(__LINE__);

	$bIsDir = ($this->arParams['is_dir']);

	if ($this->arParams["not_found"] === true)
		return "404 Not Found";

	if (!isset($options['dest_url']))
	{
		$arElement = $this->arParams[($this->arParams['dir_array']?'dir_array':'element_array')];
		if ( $this->_parse_webdav_info($arElement) &&
			isset($arElement['PROPS']['BX:']['UNDELETE']))
			$options['dest_url'] = $arElement['PROPS']['BX:']['UNDELETE'];
	}

	if (!isset($options['dest_url']))
		return "404 Not Found";

	$this->events_enabled = false;
	$result = $this->MOVE($options);
	$this->events_enabled = true;
	if (in_array(intval($result), array(201, 204)))   // remove the "UNDELETE" in WEBDAV_INFO
	{
		$options["props"] = array(array("ns"=>"BX:","name"=>"UNDELETE"));
		$this->PROPPATCH($options);
		if ($bIsDir)
		{
			$this->_onEvent('Restore', $options["section_id"], 'FOLDER');
			$arUndeleteSections = array($options["section_id"]);
			reset($arUndeleteSections);
			while($sectionID = current($arUndeleteSections))
			{
				$dbUndeleteItems = $this->_get_mixed_list($sectionID);
				while ($arUndeleteItem = $dbUndeleteItems->Fetch())
				{
					if ($arUndeleteItem["TYPE"] == "S")
					{
						$arUndeleteSections[] = $arUndeleteItem["ID"];
					}

					$arUndeleteOptions = array("props" => array( array("ns"=>"BX:", "name"=>"UNDELETE")));
					if ($arUndeleteItem["TYPE"] == "S")
						$arUndeleteOptions["section_id"] = $arUndeleteItem["ID"];
					else
						$arUndeleteOptions["element_id"] = $arUndeleteItem["ID"];
					$this->PROPPATCH($arUndeleteOptions);

					if ($arUndeleteItem["TYPE"] == "S")
						$this->_onEvent('Restore', $arUndeleteItem["ID"], 'FOLDER');
					else
					{
						$this->_onEvent('Restore', $arUndeleteItem["ID"]);
						$el = new CIBlockElement;
						$el->Update($arUndeleteItem["ID"], array('TIMESTAMP_X' => true), false, false);
					}
				}
				next($arUndeleteSections);
			}
		}
		else
		{
			$this->_onEvent('Restore', $options['element_id']);
		}

		$this->ClearCache("section");
		return "204 No Content";
	}
	else
	{
		return "404 Not Found";
	}
}