| 1 | <?php
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    | 2 | /**
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    | 3 |  * PHPMailer - PHP email creation and transport class.
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    | 4 |  * PHP Version 5.4
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    | 5 |  * @package PHPMailer
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    | 6 |  * @link https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
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    | 7 |  * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
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    | 8 |  * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
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    | 9 |  * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
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    | 10 |  * @author Brent R. Matzelle (original founder)
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    | 11 |  * @copyright 2012 - 2014 Marcus Bointon
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    | 12 |  * @copyright 2010 - 2012 Jim Jagielski
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    | 13 |  * @copyright 2004 - 2009 Andy Prevost
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    | 14 |  * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
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    | 15 |  * @note This program is distributed in the hope that it will be useful - WITHOUT
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    | 16 |  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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    | 17 |  * FITNESS FOR A PARTICULAR PURPOSE.
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    | 18 |  */
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    | 19 | 
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    | 20 | /**
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    | 21 |  * PHPMailerOAuth - PHPMailer subclass adding OAuth support.
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    | 22 |  * @package PHPMailer
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    | 23 |  * @author @sherryl4george
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    | 24 |  * @author Marcus Bointon (@Synchro) <phpmailer@synchromedia.co.uk>
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    | 25 |  */
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    | 26 | class PHPMailerOAuth extends PHPMailer
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    | 27 | {
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    | 28 |     /**
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    | 29 |      * The OAuth user's email address
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    | 30 |      * @var string
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    | 31 |      */
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    | 32 |     public $oauthUserEmail = '';
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    | 33 | 
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    | 34 |     /**
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    | 35 |      * The OAuth refresh token
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    | 36 |      * @var string
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    | 37 |      */
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    | 38 |     public $oauthRefreshToken = '';
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    | 39 | 
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    | 40 |     /**
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    | 41 |      * The OAuth client ID
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    | 42 |      * @var string
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    | 43 |      */
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    | 44 |     public $oauthClientId = '';
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    | 45 | 
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    | 46 |     /**
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    | 47 |      * The OAuth client secret
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    | 48 |      * @var string
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    | 49 |      */
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    | 50 |     public $oauthClientSecret = '';
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    | 51 | 
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    | 52 |     /**
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    | 53 |      * An instance of the PHPMailerOAuthGoogle class.
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    | 54 |      * @var PHPMailerOAuthGoogle
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    | 55 |      * @access protected
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    | 56 |      */
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    | 57 |     protected $oauth = null;
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    | 58 | 
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    | 59 |     /**
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    | 60 |      * Get a PHPMailerOAuthGoogle instance to use.
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    | 61 |      * @return PHPMailerOAuthGoogle
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    | 62 |      */
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    | 63 |     public function getOAUTHInstance()
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    | 64 |     {
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    | 65 |         if (!is_object($this->oauth)) {
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    | 66 |             $this->oauth = new PHPMailerOAuthGoogle(
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    | 67 |                 $this->oauthUserEmail,
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    | 68 |                 $this->oauthClientSecret,
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    | 69 |                 $this->oauthClientId,
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    | 70 |                 $this->oauthRefreshToken
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    | 71 |             );
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    | 72 |         }
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    | 73 |         return $this->oauth;
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    | 74 |     }
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    | 75 | 
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    | 76 |     /**
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    | 77 |      * Initiate a connection to an SMTP server.
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    | 78 |      * Overrides the original smtpConnect method to add support for OAuth.
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    | 79 |      * @param array $options An array of options compatible with stream_context_create()
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    | 80 |      * @uses SMTP
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    | 81 |      * @access public
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    | 82 |      * @return bool
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    | 83 |      * @throws phpmailerException
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    | 84 |      */
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    | 85 |     public function smtpConnect($options = array())
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    | 86 |     {
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    | 87 |         if (is_null($this->smtp)) {
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    | 88 |             $this->smtp = $this->getSMTPInstance();
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    | 89 |         }
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    | 90 | 
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    | 91 |         if (is_null($this->oauth)) {
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    | 92 |             $this->oauth = $this->getOAUTHInstance();
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    | 93 |         }
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    | 94 | 
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    | 95 |         // Already connected?
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    | 96 |         if ($this->smtp->connected()) {
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    | 97 |             return true;
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    | 98 |         }
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    | 99 | 
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    | 100 |         $this->smtp->setTimeout($this->Timeout);
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    | 101 |         $this->smtp->setDebugLevel($this->SMTPDebug);
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    | 102 |         $this->smtp->setDebugOutput($this->Debugoutput);
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    | 103 |         $this->smtp->setVerp($this->do_verp);
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    | 104 |         $hosts = explode(';', $this->Host);
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    | 105 |         $lastexception = null;
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    | 106 | 
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    | 107 |         foreach ($hosts as $hostentry) {
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    | 108 |             $hostinfo = array();
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    | 109 |             if (!preg_match('/^((ssl|tls):\/\/)*([a-zA-Z0-9\.-]*):?([0-9]*)$/', trim($hostentry), $hostinfo)) {
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    | 110 |                 // Not a valid host entry
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    | 111 |                 continue;
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    | 112 |             }
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    | 113 |             // $hostinfo[2]: optional ssl or tls prefix
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    | 114 |             // $hostinfo[3]: the hostname
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    | 115 |             // $hostinfo[4]: optional port number
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    | 116 |             // The host string prefix can temporarily override the current setting for SMTPSecure
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    | 117 |             // If it's not specified, the default value is used
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    | 118 |             $prefix = '';
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    | 119 |             $secure = $this->SMTPSecure;
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    | 120 |             $tls = ($this->SMTPSecure == 'tls');
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    | 121 |             if ('ssl' == $hostinfo[2] or ('' == $hostinfo[2] and 'ssl' == $this->SMTPSecure)) {
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    | 122 |                 $prefix = 'ssl://';
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    | 123 |                 $tls = false; // Can't have SSL and TLS at the same time
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    | 124 |                 $secure = 'ssl';
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    | 125 |             } elseif ($hostinfo[2] == 'tls') {
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    | 126 |                 $tls = true;
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    | 127 |                 // tls doesn't use a prefix
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    | 128 |                 $secure = 'tls';
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    | 129 |             }
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    | 130 |             //Do we need the OpenSSL extension?
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    | 131 |             $sslext = defined('OPENSSL_ALGO_SHA1');
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    | 132 |             if ('tls' === $secure or 'ssl' === $secure) {
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    | 133 |                 //Check for an OpenSSL constant rather than using extension_loaded, which is sometimes disabled
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    | 134 |                 if (!$sslext) {
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    | 135 |                     throw new phpmailerException($this->lang('extension_missing').'openssl', self::STOP_CRITICAL);
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    | 136 |                 }
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    | 137 |             }
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    | 138 |             $host = $hostinfo[3];
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    | 139 |             $port = $this->Port;
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    | 140 |             $tport = (integer)$hostinfo[4];
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    | 141 |             if ($tport > 0 and $tport < 65536) {
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    | 142 |                 $port = $tport;
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    | 143 |             }
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    | 144 |             if ($this->smtp->connect($prefix . $host, $port, $this->Timeout, $options)) {
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    | 145 |                 try {
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    | 146 |                     if ($this->Helo) {
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    | 147 |                         $hello = $this->Helo;
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    | 148 |                     } else {
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    | 149 |                         $hello = $this->serverHostname();
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    | 150 |                     }
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    | 151 |                     $this->smtp->hello($hello);
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    | 152 |                     //Automatically enable TLS encryption if:
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    | 153 |                     // * it's not disabled
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    | 154 |                     // * we have openssl extension
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    | 155 |                     // * we are not already using SSL
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    | 156 |                     // * the server offers STARTTLS
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    | 157 |                     if ($this->SMTPAutoTLS and $sslext and $secure != 'ssl' and $this->smtp->getServerExt('STARTTLS')) {
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    | 158 |                         $tls = true;
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    | 159 |                     }
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    | 160 |                     if ($tls) {
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    | 161 |                         if (!$this->smtp->startTLS()) {
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    | 162 |                             throw new phpmailerException($this->lang('connect_host'));
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    | 163 |                         }
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    | 164 |                         // We must resend HELO after tls negotiation
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    | 165 |                         $this->smtp->hello($hello);
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    | 166 |                     }
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    | 167 |                     if ($this->SMTPAuth) {
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    | 168 |                         if (!$this->smtp->authenticate(
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    | 169 |                             $this->Username,
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    | 170 |                             $this->Password,
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    | 171 |                             $this->AuthType,
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    | 172 |                             $this->Realm,
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    | 173 |                             $this->Workstation,
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    | 174 |                             $this->oauth
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    | 175 |                         )
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    | 176 |                         ) {
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    | 177 |                             throw new phpmailerException($this->lang('authenticate'));
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    | 178 |                         }
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    | 179 |                     }
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    | 180 |                     return true;
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    | 181 |                 } catch (phpmailerException $exc) {
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    | 182 |                     $lastexception = $exc;
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    | 183 |                     $this->edebug($exc->getMessage());
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    | 184 |                     // We must have connected, but then failed TLS or Auth, so close connection nicely
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    | 185 |                     $this->smtp->quit();
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    | 186 |                 }
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    | 187 |             }
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    | 188 |         }
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    | 189 |         // If we get here, all connection attempts have failed, so close connection hard
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    | 190 |         $this->smtp->close();
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    | 191 |         // As we've caught all exceptions, just report whatever the last one was
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    | 192 |         if ($this->exceptions and !is_null($lastexception)) {
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    | 193 |             throw $lastexception;
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    | 194 |         }
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    | 195 |         return false;
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    | 196 |     }
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    | 197 | }
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