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| 1 | +<?php |
| 2 | +/** |
| 3 | + * PHPMailer - PHP email creation and transport class. |
| 4 | + * PHP Version 5.5 |
| 5 | + * @package PHPMailer |
| 6 | + * @see https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project |
| 7 | + * @author Marcus Bointon (Synchro/coolbru) <[email protected]> |
| 8 | + * @author Jim Jagielski (jimjag) <[email protected]> |
| 9 | + * @author Andy Prevost (codeworxtech) <[email protected]> |
| 10 | + * @author Brent R. Matzelle (original founder) |
| 11 | + * @copyright 2012 - 2017 Marcus Bointon |
| 12 | + * @copyright 2010 - 2012 Jim Jagielski |
| 13 | + * @copyright 2004 - 2009 Andy Prevost |
| 14 | + * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License |
| 15 | + * @note This program is distributed in the hope that it will be useful - WITHOUT |
| 16 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 17 | + * FITNESS FOR A PARTICULAR PURPOSE. |
| 18 | + */ |
| 19 | +/** |
| 20 | + * Get an OAuth2 token from an OAuth2 provider. |
| 21 | + * * Install this script on your server so that it's accessible |
| 22 | + * as [https/http]://<yourdomain>/<folder>/get_oauth_token.php |
| 23 | + * e.g.: http://localhost/phpmailer/get_oauth_token.php |
| 24 | + * * Ensure dependencies are installed with 'composer install' |
| 25 | + * * Set up an app in your Google/Yahoo/Microsoft account |
| 26 | + * * Set the script address as the app's redirect URL |
| 27 | + * If no refresh token is obtained when running this file, |
| 28 | + * revoke access to your app and run the script again. |
| 29 | + */ |
| 30 | + |
| 31 | +namespace PHPMailer\PHPMailer; |
| 32 | + |
| 33 | +/** |
| 34 | + * Aliases for League Provider Classes |
| 35 | + * Make sure you have added these to your composer.json and run `composer install` |
| 36 | + * Plenty to choose from here: |
| 37 | + * @see http://oauth2-client.thephpleague.com/providers/thirdparty/ |
| 38 | + */ |
| 39 | +// @see https://github.com/thephpleague/oauth2-google |
| 40 | +use League\OAuth2\Client\Provider\Google; |
| 41 | +// @see https://packagist.org/packages/hayageek/oauth2-yahoo |
| 42 | +use Hayageek\OAuth2\Client\Provider\Yahoo; |
| 43 | +// @see https://github.com/stevenmaguire/oauth2-microsoft |
| 44 | +use Stevenmaguire\OAuth2\Client\Provider\Microsoft; |
| 45 | + |
| 46 | +if (!isset($_GET['code']) && !isset($_GET['provider'])) { |
| 47 | +?> |
| 48 | +<html> |
| 49 | +<body>Select Provider:<br/> |
| 50 | +<a href='?provider=Google'>Google</a><br/> |
| 51 | +<a href='?provider=Yahoo'>Yahoo</a><br/> |
| 52 | +<a href='?provider=Microsoft'>Microsoft/Outlook/Hotmail/Live/Office365</a><br/> |
| 53 | +</body> |
| 54 | +</html> |
| 55 | +<?php |
| 56 | +exit; |
| 57 | +} |
| 58 | + |
| 59 | +require 'vendor/autoload.php'; |
| 60 | + |
| 61 | +session_start(); |
| 62 | + |
| 63 | +$providerName = ''; |
| 64 | + |
| 65 | +if (array_key_exists('provider', $_GET)) { |
| 66 | + $providerName = $_GET['provider']; |
| 67 | + $_SESSION['provider'] = $providerName; |
| 68 | +} elseif (array_key_exists('provider', $_SESSION)) { |
| 69 | + $providerName = $_SESSION['provider']; |
| 70 | +} |
| 71 | +if (!in_array($providerName, ['Google', 'Microsoft', 'Yahoo'])) { |
| 72 | + exit('Only Google, Microsoft and Yahoo OAuth2 providers are currently supported in this script.'); |
| 73 | +} |
| 74 | + |
| 75 | +//These details are obtained by setting up an app in the Google developer console, |
| 76 | +//or whichever provider you're using. |
| 77 | +$clientId = 'RANDOMCHARS-----duv1n2.apps.googleusercontent.com'; |
| 78 | +$clientSecret = 'RANDOMCHARS-----lGyjPcRtvP'; |
| 79 | + |
| 80 | +//If this automatic URL doesn't work, set it yourself manually to the URL of this script |
| 81 | +$redirectUri = (isset($_SERVER['HTTPS']) ? 'https://' : 'http://') . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF']; |
| 82 | +//$redirectUri = 'http://localhost/PHPMailer/redirect'; |
| 83 | + |
| 84 | +$params = [ |
| 85 | + 'clientId' => $clientId, |
| 86 | + 'clientSecret' => $clientSecret, |
| 87 | + 'redirectUri' => $redirectUri, |
| 88 | + 'accessType' => 'offline' |
| 89 | +]; |
| 90 | + |
| 91 | +$options = []; |
| 92 | +$provider = null; |
| 93 | + |
| 94 | +switch ($providerName) { |
| 95 | + case 'Google': |
| 96 | + $provider = new Google($params); |
| 97 | + $options = [ |
| 98 | + 'scope' => [ |
| 99 | + 'https://mail.google.com/' |
| 100 | + ] |
| 101 | + ]; |
| 102 | + break; |
| 103 | + case 'Yahoo': |
| 104 | + $provider = new Yahoo($params); |
| 105 | + break; |
| 106 | + case 'Microsoft': |
| 107 | + $provider = new Microsoft($params); |
| 108 | + $options = [ |
| 109 | + 'scope' => [ |
| 110 | + 'wl.imap', |
| 111 | + 'wl.offline_access' |
| 112 | + ] |
| 113 | + ]; |
| 114 | + break; |
| 115 | +} |
| 116 | + |
| 117 | +if (null === $provider) { |
| 118 | + exit('Provider missing'); |
| 119 | +} |
| 120 | + |
| 121 | +if (!isset($_GET['code'])) { |
| 122 | + // If we don't have an authorization code then get one |
| 123 | + $authUrl = $provider->getAuthorizationUrl($options); |
| 124 | + $_SESSION['oauth2state'] = $provider->getState(); |
| 125 | + header('Location: ' . $authUrl); |
| 126 | + exit; |
| 127 | +// Check given state against previously stored one to mitigate CSRF attack |
| 128 | +} elseif (empty($_GET['state']) || ($_GET['state'] !== $_SESSION['oauth2state'])) { |
| 129 | + unset($_SESSION['oauth2state']); |
| 130 | + unset($_SESSION['provider']); |
| 131 | + exit('Invalid state'); |
| 132 | +} else { |
| 133 | + unset($_SESSION['provider']); |
| 134 | + // Try to get an access token (using the authorization code grant) |
| 135 | + $token = $provider->getAccessToken( |
| 136 | + 'authorization_code', |
| 137 | + [ |
| 138 | + 'code' => $_GET['code'] |
| 139 | + ] |
| 140 | + ); |
| 141 | + // Use this to interact with an API on the users behalf |
| 142 | + // Use this to get a new access token if the old one expires |
| 143 | + echo 'Refresh Token: ', $token->getRefreshToken(); |
| 144 | +} |
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