CUpdateSystem::CheckFolderUpdatability

static function CheckFolderUpdatability($destFolder, $srcFolder, &$strError)
{
	$strError_tmp = "";

	$destFolder = str_replace("\", "/", $destFolder);
	$destFolder = Trim($destFolder, " tnrx0B/\");
	if ($destFolder <> '')
		$destFolder = "/".$destFolder;

	if ($srcFolder && $srcFolder <> '')
	{
		$srcFolder = str_replace("\", "/", $srcFolder);
		$srcFolder = Trim($srcFolder, " tnrx0B/\");
		if ($srcFolder <> '')
			$srcFolder = "/".$srcFolder;

		$srcFolderFull = $_SERVER["DOCUMENT_ROOT"].$srcFolder;
		if (!file_exists($srcFolderFull) || !is_dir($srcFolderFull))
			$strError_tmp .= "[UCFU01] ".str_replace("#FILE#", $srcFolderFull, GetMessage("SUPN_NO_FOLDER_EX")).".
";

		if ($strError_tmp == '')
		{
			if (!is_readable($srcFolderFull))
				$strError_tmp .= "[UCFU02] ".str_replace("#FILE#", $srcFolderFull, GetMessage("SUPN_CU_RD_TMP_CAT")).".
";
		}

		if ($handle = @opendir($srcFolderFull))
		{
			while (($file = readdir($handle)) !== false)
			{
				if ($file == "." || $file == "..")
					continue;

				if (is_dir($srcFolderFull."/".$file))
				{
					CUpdateSystem::CheckFolderUpdatability($destFolder."/".$file, $srcFolder."/".$file, $strError_tmp);
				}
				elseif (is_file($srcFolderFull."/".$file))
				{
					$destFileFull = $_SERVER["DOCUMENT_ROOT"].$destFolder."/".$file;
					if (file_exists($destFileFull))
					{
						if (!is_writeable($destFileFull))
							$strError_tmp .= "[UCFU03] ".str_replace("#FILE#", $destFileFull, GetMessage("SUPP_CU_MAIN_ERR_FILE")).".
";
					}
					else
					{
						$p = CUpdateSystem::bxstrrpos($destFileFull, "/");
						$destFileFull = substr($destFileFull, 0, $p);

						while (strlen($destFileFull) > 1 && substr($destFileFull, strlen($destFileFull) - 1, 1) == "/")
							$destFileFull = substr($destFileFull, 0, strlen($destFileFull) - 1);

						$p = CUpdateSystem::bxstrrpos($destFileFull, "/");
						while ($p > 0)
						{
							if (file_exists($destFileFull) && is_dir($destFileFull))
							{
								if (!is_writable($destFileFull))
									$strError_tmp .= "[UCFU04] ".str_replace("#FILE#", $destFileFull, GetMessage("SUPP_CU_MAIN_ERR_CAT")).".
";

								break;
							}
							$destFileFull = substr($destFileFull, 0, $p);
							$p = CUpdateSystem::bxstrrpos($destFileFull, "/");
						}
					}
				}
			}
			@closedir($handle);
		}
	}
	else
	{
		$destFolderFull = $_SERVER["DOCUMENT_ROOT"].$destFolder;
		if (!file_exists($destFolderFull) || !is_dir($destFolderFull))
			$strError_tmp .= "[UCFU05] ".str_replace("#FILE#", $destFolderFull, GetMessage("SUPN_NO_FOLDER_EX")).".
";

		if ($strError_tmp == '')
		{
			if (!is_writeable($destFolderFull))
				$strError_tmp .= "[UCFU06] ".str_replace("#FILE#", $destFolderFull, GetMessage("SUPP_CU_MAIN_ERR_CAT")).".
";
		}

		if ($handle = @opendir($destFolderFull))
		{
			while (($file = readdir($handle)) !== false)
			{
				if ($file == "." || $file == "..")
					continue;

				if (is_dir($destFolderFull."/".$file))
				{
					CUpdateSystem::CheckFolderUpdatability($destFolder."/".$file, "", $strError_tmp);
				}
				elseif (is_file($destFolderFull."/".$file))
				{
					if (!is_writeable($destFolderFull."/".$file))
						$strError_tmp .= "[UCFU07] ".str_replace("#FILE#", $destFolderFull."/".$file, GetMessage("SUPP_CU_MAIN_ERR_FILE")).".
";
				}
			}
			@closedir($handle);
		}
	}

	if ($strError_tmp <> '')
	{
		CUpdateSystem::AddMessage2Log($strError_tmp, "CUCFU");
		$strError .= $strError_tmp;
		return false;
	}
	else
		return true;
}