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include 'init.php';

function addUser($data,$username,$password){
	$ret = array(
		'code'=>0,
		'message'=>'娣诲姞鎴愬姛'
	);
	if(existsUser($data,$username)==0){
		$s = $data.$username.'@'.$password.'|';
		file_put_contents(DB_PATH, $s);

	}else{
		$ret['code']=-1;
		$ret['message']='鐢ㄦ埛宸插瓨鍦�';
	}

	return json_encode($ret);
}

function updateUser($data,$username,$password){
	$ret = array(
		'code'=>0,
		'message'=>'鏇存柊鎴愬姛'
	);
	if(existsUser($data,$username)>0 && $username!='admin'){
		$s = preg_replace('/'.$username.'@[0-9a-zA-Z]+\|/', $username.'@'.$password.'|', $data);
		file_put_contents(DB_PATH, $s);

	}else{
		$ret['code']=-1;
		$ret['message']='鐢ㄦ埛涓嶅瓨鍦ㄦ垨鏃犳潈鏇存柊';
	}

	return json_encode($ret);
}

function delUser($data,$username){
	$ret = array(
		'code'=>0,
		'message'=>'鍒犻櫎鎴愬姛'
	);
	if(existsUser($data,$username)>0 && $username!='admin'){
		$s = preg_replace('/'.$username.'@[0-9a-zA-Z]+\|/', '', $data);
		file_put_contents(DB_PATH, $s);

	}else{
		$ret['code']=-1;
		$ret['message']='鐢ㄦ埛涓嶅瓨鍦ㄦ垨鏃犳潈鍒犻櫎';
	}

	return json_encode($ret);

}

function existsUser($data,$username){
	return preg_match('/'.$username.'@[0-9a-zA-Z]+\|/', $data);
}

function initCache(){
	return file_exists('cache.php')?:file_put_contents('cache.php','<!-- ctfshow-web-cache -->');
}

function clearCache(){
	shell_exec('rm -rf cache.php');
	return 'ok';
}

function flushCache(){
	if(file_exists('cache.php') && file_get_contents('cache.php')===false){
		return FLAG646;
	}else{
		return '';
	}
}

function netTest($cmd){
	$ret = array(
		'code'=>0,
		'message'=>'鍛戒护鎵ц澶辫触'
	);

	if(preg_match('/ping ((2(5[0-5]|[0-4]\d))|[0-1]?\d{1,2})(\.((2(5[0-5]|[0-4]\d))|[0-1]?\d{1,2})){3}/', $cmd)){
		$res = shell_exec($cmd);
		stripos(PHP_OS,'WIN')!==FALSE?$ret['message']=iconv("GBK", "UTF-8", $res):$ret['message']=$res;
		
	}
	if(preg_match('/^[A-Za-z]+$/', $cmd)){
		$res = shell_exec($cmd);
		stripos(PHP_OS,'WIN')!==FALSE?$ret['message']=iconv("GBK", "UTF-8", $res):$ret['message']=$res;
	}
	
	return json_encode($ret);
}