Edit File

Edit: uninstall.php

<?php
/**
 * Fired when the plugin is uninstalled.
 */
// If uninstall not called from WordPress, then exit
if (!defined('WP_UNINSTALL_PLUGIN')) {
    exit;
}

// CHECK PHP VERSION
define('DUPLICATOR_LITE_PHP_MINIMUM_VERSION', '5.3.8');
define('DUPLICATOR_LITE_PHP_SUGGESTED_VERSION', '5.6.20');
require_once(dirname(__FILE__)."/tools/DuplicatorPhpVersionCheck.php");
if (DuplicatorPhpVersionCheck::check(DUPLICATOR_LITE_PHP_MINIMUM_VERSION, DUPLICATOR_LITE_PHP_SUGGESTED_VERSION) === false) {
    return;
}

require_once 'helper.php';
require_once 'define.php';
require_once 'lib/snaplib/snaplib.all.php';
require_once 'classes/class.settings.php';
require_once 'classes/utilities/class.u.php';
require_once 'classes/class.plugin.upgrade.php';

global $wpdb;
DUP_Settings::init();

$table_name = $wpdb->prefix."duplicator_packages";
$wpdb->query("DROP TABLE IF EXISTS `{$table_name}`");
$wpdb->query("DELETE FROM ".$wpdb->usermeta." WHERE meta_key='".DUPLICATOR_ADMIN_NOTICES_USER_META_KEY."'");

delete_option(DUP_LITE_Plugin_Upgrade::DUP_VERSION_OPT_KEY);
delete_option('duplicator_usage_id');

//Remove entire storage directory
if (DUP_Settings::Get('uninstall_files')) {
    $ssdir           = DUP_Settings::getSsdirPath();
    $ssdir_tmp       = DUP_Settings::getSsdirTmpPath();
    $ssdir_installer = DUP_Settings::getSsdirInstallerPath();

//Sanity check for strange setup
    $check = glob("{$ssdir}/wp-config.php");
    if (count($check) == 0) {

//PHP sanity check
        foreach (glob("{$ssdir}/*_database.sql") as $file) {
            if (strstr($file, '_database.sql'))
                @unlink("{$file}");
        }
        foreach (glob("{$ssdir}/*_installer.php") as $file) {
            if (strstr($file, '_installer.php'))
                @unlink("{$file}");
        }
        foreach (glob("{$ssdir}/*_archive.zip*") as $file) {
            if (strstr($file, '_archive.zip'))
                @unlink("{$file}");
        }
        foreach (glob("{$ssdir}/*_archive.daf") as $file) {
            if (strstr($file, '_archive.daf'))
                @unlink("{$file}");
        }
        foreach (glob("{$ssdir}/*_scan.json") as $file) {
            if (strstr($file, '_scan.json'))
                @unlink("{$file}");
        }
        foreach (glob("{$ssdir_tmp}/*_scan.json") as $file) {
            if (strstr($file, '_scan.json'))
                @unlink("{$file}");
        }
        // before 1.3.38 the [HASH]_wp-config.txt was present in main storage area
        foreach (glob("{$ssdir}/*_wp-config.txt") as $file) {
            if (strstr($file, '_wp-config.txt'))
                @unlink("{$file}");
        }
        foreach (glob("{$ssdir}/*.log") as $file) {
            if (strstr($file, '.log'))
                @unlink("{$file}");
        }
        foreach (glob("{$ssdir}/*.log1") as $file) {
            if (strstr($file, '.log1'))
                @unlink("{$file}");
        }

//Check for core files and only continue removing data if the snapshots directory
        //has not been edited by 3rd party sources, this helps to keep the system stable
        $files = glob("{$ssdir}/*");
        if (is_array($files) && count($files) < 6) {
            $defaults = array("{$ssdir}/index.php", "{$ssdir}/robots.txt", "{$ssdir}/dtoken.php");
            $compare  = array_diff($defaults, $files);

//There might be a .htaccess file or index.php/html etc.
            if (count($compare) < 3) {
                foreach ($defaults as $file) {
                    @unlink("{$file}");
                }
                @unlink("{$ssdir}/.htaccess");

//installer log from previous install
                foreach (glob("{$ssdir_installer}/*.txt") as $file) {
                    if (strstr($file, '.txt'))
                        @unlink("{$file}");
                }

@rmdir($ssdir_installer);
                @rmdir($ssdir_tmp);
                @rmdir($ssdir);
            }
        }
    }
}

//Remove all Settings
if (DUP_Settings::Get('uninstall_settings')) {
    DUP_Settings::Delete();
    delete_option('duplicator_ui_view_state');
    delete_option('duplicator_package_active');
    delete_option("duplicator_exe_safe_mode");
    delete_option('duplicator_lite_inst_hash_notice');
}

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