class.ilCloudUtil.php

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<?php
/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilCloudUtil
{
    public static function normalizePath($path)
    {
        if ($path == "." || $path == "/" || $path == "") {
            $path = "/";
        } else {
            $path = "/" . rtrim(ltrim(str_replace('//', '/', $path), "/"), "/");
        }

        return $path;
    }

    public static function joinPaths($path1, $path2)
    {
        $path1 = ilCloudUtil::normalizePath($path1);
        $path2 = ilCloudUtil::normalizePath($path2);
        return ilCloudUtil::normalizePath(str_replace('//', '/', $path1 . $path2));
    }

    public static function joinPathsAbsolute($path1, $path2)
    {
        $path = ilCloudUtil::normalizePath(str_replace('//', '/', $path1 . $path2));
        if ($path == "/") {
            return $path;
        } else {
            return "/" . ltrim($path, "/") . "/";
        }
    }
}