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1 <?php 2 3 /** 4 * PHPMailer - PHP email creation and transport class. 5 * PHP Version 5.5. 6 * 7 * @see https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project 8 * 9 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk> 10 * @author Jim Jagielski (jimjag) <jimjag@gmail.com> 11 * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net> 12 * @author Brent R. Matzelle (original founder) 13 * @copyright 2012 - 2020 Marcus Bointon 14 * @copyright 2010 - 2012 Jim Jagielski 15 * @copyright 2004 - 2009 Andy Prevost 16 * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License 17 * @note This program is distributed in the hope that it will be useful - WITHOUT 18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 19 * FITNESS FOR A PARTICULAR PURPOSE. 20 */ 21 22 namespace PHPMailer\PHPMailer; 23 24 use League\OAuth2\Client\Grant\RefreshToken; 25 use League\OAuth2\Client\Provider\AbstractProvider; 26 use League\OAuth2\Client\Token\AccessToken; 27 28 /** 29 * OAuth - OAuth2 authentication wrapper class. 30 * Uses the oauth2-client package from the League of Extraordinary Packages. 31 * 32 * @see http://oauth2-client.thephpleague.com 33 * 34 * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk> 35 */ 36 class OAuth implements OAuthTokenProvider 37 { 38 /** 39 * An instance of the League OAuth Client Provider. 40 * 41 * @var AbstractProvider 42 */ 43 protected $provider; 44 45 /** 46 * The current OAuth access token. 47 * 48 * @var AccessToken 49 */ 50 protected $oauthToken; 51 52 /** 53 * The user's email address, usually used as the login ID 54 * and also the from address when sending email. 55 * 56 * @var string 57 */ 58 protected $oauthUserEmail = ''; 59 60 /** 61 * The client secret, generated in the app definition of the service you're connecting to. 62 * 63 * @var string 64 */ 65 protected $oauthClientSecret = ''; 66 67 /** 68 * The client ID, generated in the app definition of the service you're connecting to. 69 * 70 * @var string 71 */ 72 protected $oauthClientId = ''; 73 74 /** 75 * The refresh token, used to obtain new AccessTokens. 76 * 77 * @var string 78 */ 79 protected $oauthRefreshToken = ''; 80 81 /** 82 * OAuth constructor. 83 * 84 * @param array $options Associative array containing 85 * `provider`, `userName`, `clientSecret`, `clientId` and `refreshToken` elements 86 */ 87 public function __construct($options) 88 { 89 $this->provider = $options['provider']; 90 $this->oauthUserEmail = $options['userName']; 91 $this->oauthClientSecret = $options['clientSecret']; 92 $this->oauthClientId = $options['clientId']; 93 $this->oauthRefreshToken = $options['refreshToken']; 94 } 95 96 /** 97 * Get a new RefreshToken. 98 * 99 * @return RefreshToken 100 */ 101 protected function getGrant() 102 { 103 return new RefreshToken(); 104 } 105 106 /** 107 * Get a new AccessToken. 108 * 109 * @return AccessToken 110 */ 111 protected function getToken() 112 { 113 return $this->provider->getAccessToken( 114 $this->getGrant(), 115 ['refresh_token' => $this->oauthRefreshToken] 116 ); 117 } 118 119 /** 120 * Generate a base64-encoded OAuth token. 121 * 122 * @return string 123 */ 124 public function getOauth64() 125 { 126 //Get a new token if it's not available or has expired 127 if (null === $this->oauthToken || $this->oauthToken->hasExpired()) { 128 $this->oauthToken = $this->getToken(); 129 } 130 131 return base64_encode( 132 'user=' . 133 $this->oauthUserEmail . 134 "\001auth=Bearer " . 135 $this->oauthToken . 136 "\001\001" 137 ); 138 } 139 }
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