siddharth_application/application/controllers/login.php

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

/**
 * Class : Login (LoginController)
 * Login class to control to authenticate user credentials and starts user's session.
 * @author : Kishor Mali
 * @version : 1.1
 * @since : 15 November 2016
 */
class Login extends CI_Controller
{
    /**
     * This is default constructor of the class
     */
    public function __construct()
    {
        parent::__construct();
        $this->load->model('login_model');
    }

    /**
     * Index Page for this controller.
     */
    public function index()
    {
        $this->isLoggedIn();
    }
    
    /**
     * This function used to check the user is logged in or not
     */
    function isLoggedIn()
    {
        $isLoggedIn = $this->session->userdata('isLoggedIn');
        
        if(!isset($isLoggedIn) || $isLoggedIn != TRUE)
        {
            $this->load->view('login');
        }
        else
        {
            redirect('/dashboard');
        }
    }
    
    
    /**
     * This function used to logged in user
     */
    public function loginMe()
    {
        $this->load->library('form_validation');
        
        $this->form_validation->set_rules('email', 'Email', 'required|valid_email|max_length[128]|xss_clean|trim');
        $this->form_validation->set_rules('password', 'Password', 'required|max_length[32]|');
        
        if($this->form_validation->run() == FALSE)
        {
            $this->index();
        }
        else
        {
            $email = $this->input->post('email');
            $password = $this->input->post('password');
            
            $result = $this->login_model->loginMe($email, $password);
           // print_r( $result);
            if(count($result) > 0)
            {
                foreach ($result as $res)
                {
                    $sessionArray = array('userId'=>$res->userId,                    
                                            'role'=>$res->roleId,
                                            'roleText'=>$res->role,
                                            'name'=>$res->FirstName,
											'Designation'=>$res->Designation,
											'DEPCode'=>$res->DEPCode,
											'HeadDept'=>$res->HeadDept,
											'DepartmentName'=>$res->DepartmentName,
                                            'isLoggedIn' => TRUE
                                    );
                 
                    $this->session->set_userdata($sessionArray); 
                               
                   
                    
                    
                }
				 redirect('dashboard');  
            }
            else
            {
                               
                redirect('login');
				$this->session->set_flashdata('error', 'Email or password mismatch');
            }
        }
    }

    /**
     * This function used to load forgot password view
     */
    function forgotPassword()
    {
        $this->load->view('forgotPassword');
    }
    
    /**
     * This function used to generate reset password request link
     */
    function resetPasswordUser()
    {
        $status = '';
        
        $this->load->library('form_validation');
        
        $this->form_validation->set_rules('login_email','Email','trim|required|valid_email|xss_clean');
                
        if($this->form_validation->run() == FALSE)
        {
            $this->forgetPasswordUser();
        }
        else 
        {
            $email = $this->input->post('login_email');
            
            if($this->user_model->checkEmailExist($email))
            {
                $encoded_email = urlencode($email);
                
                $this->load->helper('string');
                $data['email'] = $email;
                $data['activation_id'] = random_string('alnum',15);
                $data['created_dtm'] = date('Y-m-d H:i:s');
                $data['agent'] = $this->getBrowserAgent();
                $data['client_ip'] = $this->input->ip_address();
                
                $save = $this->user_model->resetPasswordUser($data);                
                
                if($save)
                {
                    $config['protocol'] = 'sendmail';
                    $config['mailpath'] = '/usr/sbin/sendmail';
                    $config['charset'] = 'UTF-8';
                    $config['wordwrap'] = TRUE;
                    $config['mailtype'] = 'html';
                    
                    $this->load->library('email', $config);
                    
                    $data1['reset_link'] = base_url() . "resetPasswordConfirmUser/" . $data['activation_id'] . "/" . $encoded_email;
                    $data1['info'] = $this->user_model->getCustomerInfoByEmail($email);
                    
                    $this->email->from(ADMIN_EMAIL_ID, WEBSITE);
                    $this->email->to($email);
                    $this->email->subject(RESET_PASSWORD_EMAIL_SUBJECT);
                    $this->email->message($this->load->view('email', $data1, TRUE));
                    
                    if ($this->email->send())
                    {
                        $status = 'send';
                    }
                    else
                    {
                        $status = 'notsend';
                    }
                }
                else
                {
                    $status = 'unable';
                }
            }
            else
            {
                $status = 'invalid';
            }
            
            echo json_encode(array('status'=>$status));
        }
    }

    // This function used to reset the password 
    function resetPasswordConfirmUser()
    {
       
        // Get email and activation code from URL values at index 3-4
        $email = urldecode($this->uri->segment(3));
        $activation_id = $this->uri->segment(2);
        
        // Check activation id in database
        $is_correct = $this->user_model->checkActivationDetails($email, $activation_id);
        
        $data['email'] = $email;
        $data['activation_code'] = $activation_id;
        
        if ($is_correct == 1)
        {
            $this->load->view('includes/header');
            $this->load->view('new_password', $data);
            $this->load->view('includes/footer');
        }
        else
        {
            redirect('user');
        }
    }
    
    // This function used to create new password
    function createPasswordUser()
    {
        $status = '';
        $message = '';
        
        $this->load->library('form_validation');
        
        $this->form_validation->set_rules('password','New Password','required|max_length[20]');
        $this->form_validation->set_rules('cpassword','New Re-Password','trim|required|matches[password]|max_length[20]');
        
        if($this->form_validation->run() == FALSE)
        {
            echo json_encode(array('status' => 'validation', 'message' => 'Please validate the fields'));
        }
        else
        {
            $password = $this->input->post('password');
            $cpassword = $this->input->post('cpassword');
            $email = $this->input->post('email');
            $activation_id = $this->input->post('activation_id');
            
            // Check activation id in database
            $is_correct = $this->user_model->checkActivationDetails($email, $activation_id);
            
            if(($is_correct == 1) && ($password == $cpassword))
            {
                $data = array('email_id'=>$email, 'password'=>$password);
                
                $this->user_model->createPasswordUser($data);
                
                $status = 'success';
                $message = 'Password changed successfully';
            }
            else
            {
                $status = 'error';
                $message = 'Password changed failed';
            }
            
            echo json_encode(array('status'=>$status, 'message'=>$message));
        }
    }


}

?>