XoopsModules25x / countdown

class/Common/FilesManagement.php

<?php

declare(strict_types=1);

namespace XoopsModules\Countdown\Common;

/*
 You may not change or alter any portion of this comment or credits
 of supporting developers from this source code or any supporting source code
 which is considered copyrighted (c) material of the original comment or credit authors.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/

/**
 * Module: Countdown
 *
 * @category        Module
 * @package         countdown
 * @author          XOOPS Development Team <https://xoops.org>
 * @copyright       {@link https://xoops.org/ XOOPS Project}
 * @license         GNU GPL 2 or later (https://www.gnu.org/licenses/gpl-2.0.html)
 * @link            https://xoops.org/
 * @since           1.0.0
 */
trait FilesManagement
{
    /**
     * Function responsible for checking if a directory exists, we can also write in and create an index.html file
     *
     * @param string $folder The full path of the directory to check
     *
     * @return void
     * @throws \RuntimeException
     */
    public static function createFolder($folder)
    {
        try {
            if (!file_exists($folder)) {
                if (!mkdir($folder) && !is_dir($folder)) {
                    throw new \RuntimeException(sprintf('Unable to create the %s directory', $folder));
                }

                file_put_contents($folder . '/index.html', '<script>history.go(-1);</script>');
            }
        } catch (\Exception $e) {
            echo 'Caught exception: ', $e->getMessage(), '<br>';
        }
    }

    /**
     * @param $file
     * @param $folder
     * @return bool
     */
    public static function copyFile($file, $folder)
    {
        return copy($file, $folder);
    }

    /**
     * @param $src
     * @param $dst
     */
    public static function recurseCopy($src, $dst)
    {
        $dir = opendir($src);
        @mkdir($dst);

It seems like you do not handle an error condition for mkdir(). This can introduce security issues, and is generally not recommended.

        while (false !== ($file = readdir($dir))) {
            if (('.' !== $file) && ('..' !== $file)) {
                if (is_dir($src . '/' . $file)) {
                    self::recurseCopy($src . '/' . $file, $dst . '/' . $file);
                } else {
                    copy($src . '/' . $file, $dst . '/' . $file);
                }
            }
        }
        closedir($dir);
    }

    /**
     * Copy a file, or recursively copy a folder and its contents
     * @param string $source      Source path
     * @param string $dest        Destination path
     * @param int    $permissions New folder creation permissions
     * @return      bool     Returns true on success, false on failure
     * @version     1.0.1
     * @link        http://aidanlister.com/2004/04/recursively-copying-directories-in-php/
     * @author      Aidan Lister <aidan@php.net>
     */
    public static function xcopy($source, $dest)
    {
        // Check for symlinks
        if (is_link($source)) {
            return symlink(readlink($source), $dest);
        }

        // Simple copy for a file
        if (is_file($source)) {
            return copy($source, $dest);
        }

        // Make destination directory
        if (!is_dir($dest)) {
            mkdir($dest);
        }

        if (@is_dir($source)) {
            // Loop through the folder
            $dir = dir($source);
            while (false !== $entry = $dir->read()) {
                // Skip pointers
                if ('.' === $entry || '..' === $entry) {
                    continue;
                }
                // Deep copy directories
                self::xcopy("$source/$entry", "$dest/$entry");
            }
            // Clean up
            $dir->close();
        }
        return true;
    }

    /**
     *
     * Remove files and (sub)directories
     *
     * @param string $src source directory to delete
     *
     * @return bool true on success
     * @uses \Xmf\Module\Helper::isUserAdmin()
     *
     * @uses \Xmf\Module\Helper::getHelper()
     */
    public static function deleteDirectory($src)
    {
        // Only continue if user is a 'global' Admin
        if (!($GLOBALS['xoopsUser'] instanceof \XoopsUser) || !$GLOBALS['xoopsUser']->isAdmin()) {
            return false;
        }

        $success = true;
        // remove old files
        $dirInfo = new \SplFileInfo($src);
        // validate is a directory
        if ($dirInfo->isDir()) {
            $fileList = array_diff(scandir($src, SCANDIR_SORT_NONE), ['..', '.']);
            foreach ($fileList as $k => $v) {
                $fileInfo = new \SplFileInfo("{$src}/{$v}");
                if ($fileInfo->isDir()) {
                    // recursively handle subdirectories
                    if (!$success = self::deleteDirectory($fileInfo->getRealPath())) {
                        break;
                    }
                } else {
                    // delete the file
                    if (!($success = unlink($fileInfo->getRealPath()))) {
                        break;
                    }
                }
            }
            // now delete this (sub)directory if all the files are gone
            if ($success) {
                $success = rmdir($dirInfo->getRealPath());
            }
        } else {
            // input is not a valid directory
            $success = false;
        }
        return $success;
    }

    /**
     *
     * Recursively remove directory
     *
     * @todo currently won't remove directories with hidden files, should it?
     *
     * @param string $src directory to remove (delete)
     *
     * @return bool true on success
     */
    public static function rrmdir($src)
    {
        // Only continue if user is a 'global' Admin
        if (!($GLOBALS['xoopsUser'] instanceof \XoopsUser) || !$GLOBALS['xoopsUser']->isAdmin()) {
            return false;
        }

        // If source is not a directory stop processing
        if (!is_dir($src)) {
            return false;
        }

        $success = true;

The assignment to $success is dead and can be removed.

        // Open the source directory to read in files
        $iterator = new \DirectoryIterator($src);
        foreach ($iterator as $fObj) {
            if ($fObj->isFile()) {
                $filename = $fObj->getPathname();
                $fObj     = null; // clear this iterator object to close the file

The assignment to $fObj is dead and can be removed.

                if (!unlink($filename)) {
                    return false; // couldn't delete the file
                }
            } elseif (!$fObj->isDot() && $fObj->isDir()) {
                // Try recursively on directory
                self::rrmdir($fObj->getPathname());
            }
        }
        $iterator = null;   // clear iterator Obj to close file/directory

The assignment to $iterator is dead and can be removed.

        return rmdir($src); // remove the directory & return results
    }

    /**
     * Recursively move files from one directory to another
     *
     * @param string $src  - Source of files being moved
     * @param string $dest - Destination of files being moved
     *
     * @return bool true on success
     */
    public static function rmove($src, $dest)
    {
        // Only continue if user is a 'global' Admin
        if (!($GLOBALS['xoopsUser'] instanceof \XoopsUser) || !$GLOBALS['xoopsUser']->isAdmin()) {
            return false;
        }

        // If source is not a directory stop processing
        if (!is_dir($src)) {
            return false;
        }

        // If the destination directory does not exist and could not be created stop processing
        if (!is_dir($dest) && !mkdir($dest, 0755)) {
            return false;
        }

        // Open the source directory to read in files
        $iterator = new \DirectoryIterator($src);
        foreach ($iterator as $fObj) {
            if ($fObj->isFile()) {
                rename($fObj->getPathname(), "{$dest}/" . $fObj->getFilename());
            } elseif (!$fObj->isDot() && $fObj->isDir()) {
                // Try recursively on directory
                self::rmove($fObj->getPathname(), "{$dest}/" . $fObj->getFilename());
                //                rmdir($fObj->getPath()); // now delete the directory
            }
        }
        $iterator = null;   // clear iterator Obj to close file/directory

The assignment to $iterator is dead and can be removed.

        return rmdir($src); // remove the directory & return results
    }

    /**
     * Recursively copy directories and files from one directory to another
     *
     * @param string $src  - Source of files being moved
     * @param string $dest - Destination of files being moved
     *
     * @return bool true on success
     * @uses \Xmf\Module\Helper::isUserAdmin()
     *
     * @uses \Xmf\Module\Helper::getHelper()
     */
    public static function rcopy($src, $dest)
    {
        // Only continue if user is a 'global' Admin
        if (!($GLOBALS['xoopsUser'] instanceof \XoopsUser) || !$GLOBALS['xoopsUser']->isAdmin()) {
            return false;
        }

        // If source is not a directory stop processing
        if (!is_dir($src)) {
            return false;
        }

        // If the destination directory does not exist and could not be created stop processing
        if (!is_dir($dest) && !mkdir($dest, 0755)) {
            return false;
        }

        // Open the source directory to read in files
        $iterator = new \DirectoryIterator($src);
        foreach ($iterator as $fObj) {
            if ($fObj->isFile()) {
                copy($fObj->getPathname(), "{$dest}/" . $fObj->getFilename());
            } elseif (!$fObj->isDot() && $fObj->isDir()) {
                self::rcopy($fObj->getPathname(), "{$dest}/" . $fObj->getFilename());
            }
        }
        return true;
    }
}