| <?php |
| |
| /** |
| * PHPMailer - PHP email creation and transport class. |
| * PHP Version 5.5 |
| * @package PHPMailer |
| * @see https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project |
| * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk> |
| * @author Jim Jagielski (jimjag) <jimjag@gmail.com> |
| * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net> |
| * @author Brent R. Matzelle (original founder) |
| * @copyright 2012 - 2020 Marcus Bointon |
| * @copyright 2010 - 2012 Jim Jagielski |
| * @copyright 2004 - 2009 Andy Prevost |
| * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License |
| * @note This program is distributed in the hope that it will be useful - WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. |
| */ |
| |
| /** |
| * Get an OAuth2 token from an OAuth2 provider. |
| * * Install this script on your server so that it's accessible |
| * as [https/http]://<yourdomain>/<folder>/get_oauth_token.php |
| * e.g.: http://localhost/phpmailer/get_oauth_token.php |
| * * Ensure dependencies are installed with 'composer install' |
| * * Set up an app in your Google/Yahoo/Microsoft account |
| * * Set the script address as the app's redirect URL |
| * If no refresh token is obtained when running this file, |
| * revoke access to your app and run the script again. |
| */ |
| |
| namespace PHPMailer\PHPMailer; |
| |
| /** |
| * Aliases for League Provider Classes |
| * Make sure you have added these to your composer.json and run `composer install` |
| * Plenty to choose from here: |
| * @see http://oauth2-client.thephpleague.com/providers/thirdparty/ |
| */ |
| //@see https://github.com/thephpleague/oauth2-google |
| use League\OAuth2\Client\Provider\Google; |
| //@see https://packagist.org/packages/hayageek/oauth2-yahoo |
| use Hayageek\OAuth2\Client\Provider\Yahoo; |
| //@see https://github.com/stevenmaguire/oauth2-microsoft |
| use Stevenmaguire\OAuth2\Client\Provider\Microsoft; |
| |
| if (!isset($_GET['code']) && !isset($_GET['provider'])) { |
| ?> |
| <html> |
| <body>Select Provider:<br> |
| <a href='?provider=Google'>Google</a><br> |
| <a href='?provider=Yahoo'>Yahoo</a><br> |
| <a href='?provider=Microsoft'>Microsoft/Outlook/Hotmail/Live/Office365</a><br> |
| </body> |
| </html> |
| <?php |
| exit; |
| } |
| |
| require 'vendor/autoload.php'; |
| |
| session_start(); |
| |
| $providerName = ''; |
| |
| if (array_key_exists('provider', $_GET)) { |
| $providerName = $_GET['provider']; |
| $_SESSION['provider'] = $providerName; |
| } elseif (array_key_exists('provider', $_SESSION)) { |
| $providerName = $_SESSION['provider']; |
| } |
| if (!in_array($providerName, ['Google', 'Microsoft', 'Yahoo'])) { |
| exit('Only Google, Microsoft and Yahoo OAuth2 providers are currently supported in this script.'); |
| } |
| |
| //These details are obtained by setting up an app in the Google developer console, |
| //or whichever provider you're using. |
| $clientId = 'RANDOMCHARS-----duv1n2.apps.googleusercontent.com'; |
| $clientSecret = 'RANDOMCHARS-----lGyjPcRtvP'; |
| |
| //If this automatic URL doesn't work, set it yourself manually to the URL of this script |
| $redirectUri = (isset($_SERVER['HTTPS']) ? 'https://' : 'http://') . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF']; |
| //$redirectUri = 'http://localhost/PHPMailer/redirect'; |
| |
| $params = [ |
| 'clientId' => $clientId, |
| 'clientSecret' => $clientSecret, |
| 'redirectUri' => $redirectUri, |
| 'accessType' => 'offline' |
| ]; |
| |
| $options = []; |
| $provider = null; |
| |
| switch ($providerName) { |
| case 'Google': |
| $provider = new Google($params); |
| $options = [ |
| 'scope' => [ |
| 'https://mail.google.com/' |
| ] |
| ]; |
| break; |
| case 'Yahoo': |
| $provider = new Yahoo($params); |
| break; |
| case 'Microsoft': |
| $provider = new Microsoft($params); |
| $options = [ |
| 'scope' => [ |
| 'wl.imap', |
| 'wl.offline_access' |
| ] |
| ]; |
| break; |
| } |
| |
| if (null === $provider) { |
| exit('Provider missing'); |
| } |
| |
| if (!isset($_GET['code'])) { |
| //If we don't have an authorization code then get one |
| $authUrl = $provider->getAuthorizationUrl($options); |
| $_SESSION['oauth2state'] = $provider->getState(); |
| header('Location: ' . $authUrl); |
| exit; |
| //Check given state against previously stored one to mitigate CSRF attack |
| } elseif (empty($_GET['state']) || ($_GET['state'] !== $_SESSION['oauth2state'])) { |
| unset($_SESSION['oauth2state']); |
| unset($_SESSION['provider']); |
| exit('Invalid state'); |
| } else { |
| unset($_SESSION['provider']); |
| //Try to get an access token (using the authorization code grant) |
| $token = $provider->getAccessToken( |
| 'authorization_code', |
| [ |
| 'code' => $_GET['code'] |
| ] |
| ); |
| //Use this to interact with an API on the users behalf |
| //Use this to get a new access token if the old one expires |
| echo 'Refresh Token: ', $token->getRefreshToken(); |
| } |