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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) <[email protected]> | |
| 10 | + * @author Jim Jagielski (jimjag) <[email protected]> | |
| 11 | + * @author Andy Prevost (codeworxtech) <[email protected]> | |
| 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 https://www.gnu.org/licenses/old-licenses/lgpl-2.1.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 AcyMailerPhp; | |
| 23 | + | |
| 24 | +/** | |
| 25 | + * OAuth - OAuth2 authentication wrapper class. | |
| 26 | + * Uses the oauth2-client package from the League of Extraordinary Packages. | |
| 27 | + * | |
| 28 | + * @see https://oauth2-client.thephpleague.com | |
| 29 | + * | |
| 30 | + * @author Marcus Bointon (Synchro/coolbru) <[email protected]> | |
| 31 | + */ | |
| 32 | +class OAuth implements OAuthTokenProvider | |
| 33 | +{ | |
| 34 | + /** | |
| 35 | + * The sending method used. | |
| 36 | + */ | |
| 37 | + protected string $sendingMethod; | |
| 38 | + | |
| 39 | + /** | |
| 40 | + * The URL called to generate an access token from a refresh token. | |
| 41 | + */ | |
| 42 | + protected string $tokenGenerationUrl; | |
| 43 | + | |
| 44 | + /** | |
| 45 | + * The current OAuth access token, prefixed with "Bearer ". | |
| 46 | + */ | |
| 47 | + protected string $oauthToken; | |
| 48 | + | |
| 49 | + /** | |
| 50 | + * The user's email address, usually used as the login ID | |
| 51 | + * and also the from address when sending email. | |
| 52 | + */ | |
| 53 | + protected string $oauthUserEmail; | |
| 54 | + | |
| 55 | + /** | |
| 56 | + * The client secret, generated in the app definition of the service you're connecting to. | |
| 57 | + */ | |
| 58 | + protected string $oauthClientSecret; | |
| 59 | + | |
| 60 | + /** | |
| 61 | + * The client ID, generated in the app definition of the service you're connecting to. | |
| 62 | + */ | |
| 63 | + protected string $oauthClientId; | |
| 64 | + | |
| 65 | + /** | |
| 66 | + * The refresh token, used to obtain new AccessTokens. | |
| 67 | + */ | |
| 68 | + protected string $oauthRefreshToken; | |
| 69 | + | |
| 70 | + /** | |
| 71 | + * The timestamp at which the current token expires. | |
| 72 | + */ | |
| 73 | + protected int $oauthTokenExpiration; | |
| 74 | + | |
| 75 | + public function __construct(array $options) | |
| 76 | + { | |
| 77 | + $this->sendingMethod = $options['sendingMethod'] ?? ''; | |
| 78 | + $this->tokenGenerationUrl = $options['tokenGenerationUrl'] ?? ''; | |
| 79 | + | |
| 80 | + $this->oauthUserEmail = $options['userName'] ?? ''; | |
| 81 | + $this->oauthClientId = $options['clientId'] ?? ''; | |
| 82 | + $this->oauthClientSecret = $options['clientSecret'] ?? ''; | |
| 83 | + $this->oauthRefreshToken = $options['refreshToken'] ?? ''; | |
| 84 | + $this->oauthToken = $options['oauthToken'] ?? ''; | |
| 85 | + $this->oauthTokenExpiration = $options['oauthTokenExpiration'] ? (int)$options['oauthTokenExpiration'] : 0; | |
| 86 | + } | |
| 87 | + | |
| 88 | + /** | |
| 89 | + * Generate a base64-encoded OAuth token. | |
| 90 | + */ | |
| 91 | + public function getOauth64(): string | |
| 92 | + { | |
| 93 | + $this->oauthToken = $this->getToken(); | |
| 94 | + | |
| 95 | + if (empty($this->oauthToken)) { | |
| 96 | + return ''; | |
| 97 | + } | |
| 98 | + | |
| 99 | + return base64_encode('user='.$this->oauthUserEmail."\001auth=Bearer ".$this->oauthToken."\001\001"); | |
| 100 | + } | |
| 101 | + | |
| 102 | + /** | |
| 103 | + * Custom method to avoid having a million vendors in the extension zip file. | |
| 104 | + */ | |
| 105 | + public function getToken(): string | |
| 106 | + { | |
| 107 | + // Get a new token only if it's not available or has expired | |
| 108 | + if (!empty($this->oauthToken) && $this->oauthTokenExpiration > time()) { | |
| 109 | + return $this->oauthToken; | |
| 110 | + } | |
| 111 | + | |
| 112 | + $response = acym_makeCurlCall( | |
| 113 | + $this->tokenGenerationUrl, | |
| 114 | + [ | |
| 115 | + 'data' => [ | |
| 116 | + 'client_id' => $this->oauthClientId, | |
| 117 | + 'client_secret' => $this->oauthClientSecret, | |
| 118 | + 'refresh_token' => $this->oauthRefreshToken, | |
| 119 | + 'grant_type' => 'refresh_token', | |
| 120 | + ], | |
| 121 | + 'method' => 'POST', | |
| 122 | + ] | |
| 123 | + ); | |
| 124 | + | |
| 125 | + if (!empty($response['token_type']) && !empty($response['access_token'])) { | |
| 126 | + $config = acym_config(); | |
| 127 | + $config->saveConfig( | |
| 128 | + [ | |
| 129 | + $this->sendingMethod.'_access_token' => $response['access_token'], | |
| 130 | + $this->sendingMethod.'_access_token_expiration' => time() + (int)$response['expires_in'], | |
| 131 | + ] | |
| 132 | + ); | |
| 133 | + } else { | |
| 134 | + acym_logError('Response from OAuth refresh token call: '.json_encode($response), 'oauth', 100); | |
| 135 | + | |
| 136 | + $notification = [ | |
| 137 | + 'name' => 'oauth_refresh_token_error', | |
| 138 | + 'removable' => 1, | |
| 139 | + ]; | |
| 140 | + acym_enqueueMessage(acym_translationSprintf('ACYM_OAUTH_REFRESH_TOKEN_ERROR', $response['error'] ?? ''), 'error', true, [$notification]); | |
| 141 | + } | |
| 142 | + | |
| 143 | + return $response['access_token'] ?? ''; | |
| 144 | + } | |
| 145 | +} | |