I want to implement a login with a Google account using OpenID, but I have no idea how to start this procedure because I have no idea about how to do it. So is there any step by step guides for this so that I can easily implement a Google account login with CodeIgniter in PHP.
I've found only this but I cant understand it properly so is there any guides or any libraries to login with a Google account?
Download LightOpenID. Create the login.php file, and paste the following code into the file.
<?php
require_once 'openid.php';
$openid = new LightOpenID("my-domain.com");
if ($openid->mode) {
if ($openid->mode == 'cancel') {
echo "User has canceled authentication !";
} elseif ($openid->validate()) {
$data = $openid->getAttributes();
$email = $data['contact/email'];
$first = $data['namePerson/first'];
echo "Identity : $openid->identity <br>";
echo "Email : $email <br>";
echo "First name : $first";
} else {
echo "The user has not logged in";
}
} else {
echo "Go to index page to log in.";
}
Create the index.php file, and paste the following code into the file.
<?php
require_once 'openid.php';
$openid = new LightOpenID("my-domain.com");
$openid->identity = 'https://www.google.com/accounts/o8/id';
$openid->required = array(
'namePerson/first',
'namePerson/last',
'contact/email',
);
$openid->returnUrl = 'http://my-domain.com/login.php'
?>
<a href="<?php echo $openid->authUrl() ?>">Login with Google</a>
This is all you need to do. The code has been taken from Google Login with LightOpenID.
At first download openid.php and put in your codeigniter root folder.
1. copy the code and save as ..../controller/logingoogle.php
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class LoginGoogle extends CI_Controller
{
public function __construct()
{
parent::__construct();
$this->load->model('login_model');
}
public function index()
{
require_once 'openid.php';
$openid = new LightOpenID("localhost");
$openid->identity = 'https://www.google.com/accounts/o8/id';
$openid->required = array(
'namePerson/first',
'namePerson/last',
'contact/email',
'birthDate',
'person/gender',
'contact/postalCode/home',
'contact/country/home',
'pref/language',
'pref/timezone',
);
// $openid->returnUrl = 'http://localhost/login_thirdparty/login_google.php';
$openid->returnUrl = 'http://localhost/login_thirdparty/codeigniterlogin/index.php/logingoogle/loginAuth';
// echo '<a href="'.$openid->authUrl().'">Login with Google</a>';
$data['openid'] = $openid;
$this->load->view('googleLoginView', $data);
}
public function loginAuth()
{
$this->login_model->index();
}
}
2. copy the code and save as ..../views/googleLoginView.php
<!DOCTYPE html>
<html lang="en">
<head>
<title>Login using google account</title>
</head>
<body>
<a href = "<?php echo $openid->authUrl(); ?>" > Loging Using google account </a>
</body>
</html>
3. copy the code and save as ..../models/login_model.php
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
require 'openid.php';
class Login_model extends CI_Model
{
public function index()
{
$openid = new LightOpenID("localhost");
if($openid->mode)
{
if($openid->mode == 'cancel')
{
echo "User has canceled authentication !";
}
elseif($openid->validate())
{
$data = $openid->getAttributes();
$email = $data['contact/email'];
$first = $data['namePerson/first'];
// header("Location: http://speechwithmilo.com/speechtherapy/adminpanel/");
echo "Identity : $openid->identity <br />";
echo "Email : $email <br />";
echo "First name : $first";
echo "<pre>"; print_r($data); echo "</pre>";
// echo "<meta http-equiv = 'refresh' content = '0; url=http://speechwithmilo.com/speechtherapy/adminpanel/'>";
}
else
{
echo "The user has not logged in";
}
}
else
{
echo "Go to the login page to logged in";
}
}
}
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