Auth.php

<?php
defined('BASEPATH') or exit('No direct script access allowed');

class Auth extends CI_Controller
{
    public function __construct()
    {
        parent::__construct();
        $this->load->library('form_validation');
    }

    public function index()
    {
        if ($this->session->userdata('email')) {
            redirect('user');
        }

        $this->form_validation->set_rules('email', 'Email', 'trim|required|valid_email');
        $this->form_validation->set_rules('password', 'Password', 'trim|required');

        if ($this->form_validation->run() == false) {
            $data['tittle'] = 'WPU user login';
            $this->load->view('templates/auth_header', $data);
            $this->load->view('auth/login');
            $this->load->view('templates/auth_footer');
        } else {
            $this->_login();
        }
    }

    private function _login()
    {
        $email = $this->input->post('email', true);
        $password = $this->input->post('password', true);

        $user = $this->db->get_where('user', ['email' => $email])->row_array();

        // jika user ada
        if ($user) {
            // jika user aktif
            if ($user['is_active'] == 1) {
                // cek password
                if (password_verify($password, $user['password'])) {
                    $data = [
                        'email' => $user['email'],
                        'role_id' => $user['role_id']
                    ];
                    $this->session->set_userdata($data);
                    if ($user['role_id'] == 1) {
                        redirect('admin');
                    } else {
                        redirect('user');
                    }
                } else {
                    $this->session->set_flashdata('message', '<div class="alert alert-danger" role="alert">Wrong password!</div>');
                    redirect('auth');
                }
            } else {
                $this->session->set_flashdata('message', '<div class="alert alert-danger" role="alert">This email has been not activated!</div>');
                redirect('auth');
            }
        } else {
            $this->session->set_flashdata('message', '<div class="alert alert-danger" role="alert">Email has not been registered!</div>');
            redirect('auth');
        }
    }

    public function register()
    {
        if ($this->session->userdata('email')) {
            redirect('user');
        }

        $this->form_validation->set_rules('name', 'Name', 'required|trim');
        $this->form_validation->set_rules('email', 'Email', 'required|trim|valid_email|is_unique[user.email]', [
            'is_unique' => 'This email has alredy register!'
        ]);
        $this->form_validation->set_rules('password1', 'Password', 'required|trim|min_length[3]|matches[password2]', [
            'matches' => 'The Password field does not match!'
        ]);
        $this->form_validation->set_rules('password2', 'Password', 'required|trim|matches[password1]');

        if ($this->form_validation->run() == false) {
            $data['tittle'] = 'WPU user registration';
            $this->load->view('templates/auth_header', $data);
            $this->load->view('auth/register');
            $this->load->view('templates/auth_footer');
        } else {
            $data = [
                'name' => htmlspecialchars($this->input->post('name', true)),
                'email' => htmlspecialchars($this->input->post('email', true)),
                'image' => 'default.jpg',
                'password' => password_hash($this->input->post('password1'), PASSWORD_DEFAULT),
                'role_id' => 2,
                'is_active' => 0,
                'date_created' => time()
            ];

            // $this->db->insert('user', $data);

            $this->_sendEmail();

            $this->session->set_flashdata('message', '<div class="alert alert-success" role="alert">Your account has been created</div>');
            redirect('auth');
        }
    }
    private function _sendEmail()
    {
        $config = [
            'protocol'  => 'smtp',
            'smtp_host' => 'ssl://smpt.googlemail.com',
            'smtp_user' => 'wpu.login@gmail.com',
            'smtp_pass' => 'Avenged@23',
            'smtp_port' => 465,
            'mailtype'  => 'html',
            'charset'   => 'utf-8',
            'newline'   => "\r\n"
        ];

        $this->load->library('email', $config);

        $this->email->from('wpu.login@gmail.com', 'Wep Programing UNPAS');
        $this->email->to('arifintajul4@gmail.com');
        $this->email->subject('Testing');
        $this->email->message('hello world');

        if ($this->email->send()) {
            return true;
        } else {
            echo $this->email->print_debugger();
            die;
        }
    }

    public function logout()
    {
        $this->session->unset_userdata('email');
        $this->session->unset_userdata('role_id');

        $this->session->set_flashdata('message', '<div class="alert alert-success" role="alert">You have been logged out!</div>');
        redirect('auth');
    }

    public function blocked()
    {
        $data['tittle'] = 'Access Blocked';
        $this->load->view('templates/header', $data);
        $this->load->view('auth/blocked');
        $this->load->view('templates/footer', $data);
    }
}