tekbase _ login new

<?php
class Login_model extends CI_Model
{
	private $login_messages;

	public function __construct()
	{
		parent::__construct();

		$this->load->library('encryption');
		$this->encryption->initialize(array(
                'cipher' => 'aes-256',
                'mode' => 'ctr',
                'key' => substr($this->getEncryptionKey(), 0, 31)
			)
		);
	}

	public function login()
	{
		if(isset($_POST['login']))
		{
			if(empty($_POST['mname']))
			{
				$this->login_messages['error'] = 'Bitte geben sie ihre Kundenkennung an.';
			}
			else if(strpos($_POST['mname'], 'kd') === false)
			{
				$this->login_messages['error'] = 'Ihre Kundenkennung muss mit "kd" beginnen.';
			}
			else if(empty($_POST['mpass']))
			{
				$this->login_messages['error'] = 'Bitte geben sie ihr Password an.';
			}
			else
			{
				$this->db->select('id, member, email, salt, rank, password');
				$this->db->where('member', $_POST['mname']);
				$memberLogin = $this->db->get('members')->row_array();

				if($memberLogin['id'] > 0)
				{
					$subuser = 0;
					$pwd = $this->createLoginHash($_POST['mname'], $_POST['mpass'], $memberLogin['salt']);
				}
				else
				{
					$subuser = 1;
					$pwd = $this->createLoginHash($_POST['mname'], $_POST['mpass'], $memberLogin['salt']);
				}

				if($subuser == 0)
				{
					var_dump($_POST);

					if(isset($_POST['remember']))
					{
						if($_POST['remember'] == 1)
						{
							setCookie('member', $this->encryption->encrypt('$memberLogin[id]:$memberLogin[member]:$pwd'), time() + 31536000);
						}
						else
						{
							setCookie('member', $this->encryption->encrypt('$memberLogin[id]:$memberLogin[member]:$pwd'), time() + 7200);
						}
					}
				}
				else
				{

				}
			}
		}
	}

	public function createLoginHash($name, $pwd, $saltOne, $saltTwo = 'TekBASE-5417', $iterate = 1000)
	{
		$pwdSplit = str_split($pwd, (strlen($pwd) / 2) +1);
		$nameSplit = str_split($name, (strlen($name) / 2) +1);
		$hash = '';
		for($i = 0; $i <= $iterate; $i++)
		{
			$hash = hash('sha512', $nameSplit[0].$saltOne.$pwdSplit[0].$hash.$nameSplit[1].$saltTwo.$pwdSplit[1]);
		}
		return $hash;
	}

	public function getEncryptionKey()
	{
		$chars = array(
			'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
			'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
			'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
			'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
			'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '?', '!', '@', '#',
			'$', '%', '^', '&', '*', '(', ')', '[', ']', '{', '}', '|', ';', '/', '=', '+'
		);

		shuffle($chars);

		$num_chars = count($chars) - 1;
		$token = '';

		for ($i = 0; $i < $num_chars; $i++)
		{
			$token .= $chars[mt_rand(0, $num_chars)];
		}

		return $token;
	}

	public function getMessages()
	{
		return $this->login_messages;
	}
}
?>