Tiny File Manager | functions.php

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<?php

/*
* BACKUPLY
* https://backuply.com
* (c) Backuply Team
*/

if(!defined('ABSPATH')) {
	die('HACKING ATTEMPT!');
}

$backup_info = backuply_glob('backups_info');
	$backups = backuply_glob('backups');
	
	if(empty($backup_info)){
		@mkdir(BACKUPLY_BACKUP_DIR . 'backups_info-' . $random_string, 0755, true);
	}
	
	if(empty($backups)){
		@mkdir(BACKUPLY_BACKUP_DIR . 'backups-' . $random_string, 0755, true);
	}
}

// Add the htaccess file to protect us !
function backuply_add_htaccess(){
	
	if(!file_exists(BACKUPLY_BACKUP_DIR)) {
		@mkdir(BACKUPLY_BACKUP_DIR, 0755, true);
	}
	
	$htaccess = @fopen(BACKUPLY_BACKUP_DIR . '.htaccess', 'w');
	if(!$htaccess) {
		return false;
	}
	
	@fwrite($htaccess, 'deny from all');
	@fclose($htaccess);
	
	return true;
}

// Add the webconfig file to protect us !
function backuply_add_web_config(){
	
	if(file_exists(BACKUPLY_BACKUP_DIR . 'web.config')){
		return true;
	}
	
	$web_config = @fopen(BACKUPLY_BACKUP_DIR . 'web.config', 'w');
	if(!$web_config) {
		return false;
	}
	
	$web_conf = '<configuration>
<system.webServer>
<authorization>
<deny users="*" />
</authorization>
</system.webServer>
</configuration>';
	
	@fwrite($web_config, $web_conf);
	@fclose($web_config);
	
	return true;
}

// Add the htaccess folder to protect us !
function backuply_add_index_files(){
	
	if(!file_exists(BACKUPLY_BACKUP_DIR)) {
		@mkdir(BACKUPLY_BACKUP_DIR, 0755, true);
	}
	
	$php_protection = '<?php //Backuply';
	$html_protection = '<html><body><a href="https://backuply.com" target="_blank">WordPress backups by Backuply</a></body></html>';

@file_put_contents(BACKUPLY_BACKUP_DIR . 'index.html', $html_protection);
	@file_put_contents(BACKUPLY_BACKUP_DIR . 'index.php', $php_protection);
	
	$backups = backuply_glob('backups');
	
	if(!empty($backups)){
		if(!file_exists($backups . '/index.html')){
			@file_put_contents($backups . '/index.html', $html_protection);
		}
		
		if(!file_exists($backups . '/index.php')){
			@file_put_contents($backups . '/index.php', $php_protection);
		}
		
		// Protecting backups-*/tmp folder
		if(!file_exists($backups . '/tmp/index.html')){
			@mkdir($backups . '/tmp');
			@file_put_contents($backups . '/tmp/index.html', $html_protection);
		}
		
		if(!file_exists($backups . '/tmp/index.php')){
			@file_put_contents($backups . '/tmp/index.php', $php_protection);
		}
	}

// Protecting backups_info folder
	$backups_info = backuply_glob('backups_info');
	
	if(!empty($backups_info)){
		if(!file_exists($backups_info . '/index.html')){
			@file_put_contents($backups_info . '/index.html', $html_protection);
		}

if(!file_exists($backups_info . '/index.php')){
			@file_put_contents($backups_info . '/index.php', $php_protection);
		}
	}
}

function backuply_glob($relative_path){
	$glob = glob(BACKUPLY_BACKUP_DIR . $relative_path . '-*', GLOB_ONLYDIR);
	
	if(!empty($glob[0])){
		return $glob[0];
	}

return false;
}

function backuply_kill_process($is_restore = false) {
	delete_option('backuply_status');
	update_option('backuply_backup_stopped', true);
	
	if(!empty($is_restore)){
		backuply_clean_restoration_file();
	}

die();
}

function backuply_clean_restoration_file(){

// Restore is complete now we dont need this
	if(file_exists(BACKUPLY_BACKUP_DIR.'/restoration/restoration.php')) {
		@unlink(BACKUPLY_BACKUP_DIR.'/restoration/restoration.php');
	}
	
	if(is_dir(BACKUPLY_BACKUP_DIR.'/restoration')) {
		@rmdir(BACKUPLY_BACKUP_DIR.'/restoration');
	}
	
	// Deleting restore index file
	if(file_exists(ABSPATH . '/backuply-restore.php')){
		unlink(ABSPATH . '/backuply-restore.php');
	}
}

// If there is a restore or backup task running
function backuply_active(){
	global $backuply;
	
	$backuply['status'] = get_option('backuply_status');
	
	// Nothing there
	if(empty($backuply['status']['last_time'])){
		return false;
	}
	
	// No updates since 5 min
	if((time() - BACKUPLY_TIMEOUT_TIME) > $backuply['status']['last_time']){
		return false;
	}
	
	return true;
	
}

// Verifies the backuply key
function backuply_verify_self($key, $restore_key = false) {
	
	if(empty($key)) {
		return false;
	}
	
	$config = backuply_get_config();
	
	if(!empty($restore_key)){
		if(!empty($config['RESTORE_KEY']) && urldecode($key) == $config['RESTORE_KEY']) {
			return true;
		}
		
		return false;
	}

if(urldecode($key) == $config['BACKUPLY_KEY']) {
		return true;
	}

return false;
}

// Wp-Cron handle for timeout check i.e. clean dead processes
// Terminates process if no update for 30 min
function backuply_timeout_check($is_restore) {	
	
	global $backuply;
	
	// Is it a restore check ?
	if(!empty($is_restore)) {
		
		$file = BACKUPLY_BACKUP_DIR . '/restoration/restoration.php';
		
		if(!file_exists($file)) {
			die();
		}
		
		$fm_time = filemtime($file);
		
		if((time() - $fm_time) >= BACKUPLY_TIMEOUT_TIME) {
			backuply_kill_process(true);
		}
	
	// Its a backup process
	} else {
		
		if(empty($backuply['status']['last_update'])){
			backuply_kill_process();
		}
		
		if((time() - $backuply['status']['last_update']) >= BACKUPLY_TIMEOUT_TIME) {
			backuply_kill_process();
		}
		
	}
	
	// To check after 5 minutes again
	wp_schedule_single_event(time() + BACKUPLY_TIMEOUT_TIME, 'backuply_timeout_check', array('is_restore' => $is_restore));
	
}

// Create a config file and set it with a key
function backuply_set_config() {
	
	$write['BACKUPLY_KEY'] = backuply_csrf_get_token();
	// $write['RESTORE_KEY'] = backuply_csrf_get_token();
	
	update_option('backuply_config_keys', $write);
}

function backuply_set_config_file(){

$write = get_option('backuply_config_keys', []);

if(empty($write)){
		return false;
	}

$config_file = BACKUPLY_BACKUP_DIR . 'backuply_config.php';
	
	$fp = @fopen($config_file, 'w');
	
	if(!is_resource($fp)){
		return;
	}

@fwrite($fp, "<?php exit();?>\n" . json_encode($write, JSON_PRETTY_PRINT));
	@fclose($fp);
	
	@chmod($config_file, 0600);

return true;
}

function backuply_update_restore_key(){
	
	$config = get_option('backuply_config_keys');

if(empty($config)) {
		backuply_set_config();
		return;
	}

$restore_key = backuply_csrf_get_token();
	$config['RESTORE_KEY'] = $restore_key;
	
	update_option('backuply_config_keys', $config);
}

// Sets Backup Location details in Restoration File
function backuply_set_restoration_file($loc) {
	$write['protocol'] = $loc['protocol'];
	$write['name'] = $loc['name'];
	
	$restoration_file = BACKUPLY_BACKUP_DIR . 'restoration/restoration.php';
	
	$fp = @fopen($restoration_file, 'w');
	
	if(!is_resource($fp)){
		return;
	}

if (0 == filesize($restoration_file)){
		// file is empty
		@fwrite($fp, "<?php exit();?>\n");
	}
	
	@fwrite($fp, json_encode($write, JSON_PRETTY_PRINT));
	@fclose($fp);
	
	@chmod($restoration_file, 0600);
}

// Sets Backup Location details in Restoration File
function backuply_get_restoration_data() {
	$restoration_file = BACKUPLY_BACKUP_DIR . 'restoration/restoration.php';
	
	$fp = @fopen($restoration_file, 'r');
	@fseek($fp, 16);
	
	if(filesize($restoration_file) == 0){
		return;
	}
	
	$content = @fread($fp, filesize($restoration_file));
	@fclose($fp);
	
	if(empty($content)) {
		return [];
	}
	
	$restro = json_decode($content, true);

return $restro;
}

// Get Config