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<?php
/**
* PHPMailer - PHP email creation and transport class.
* PHP Version 5.4
* @package PHPMailer
* @link 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 - 2014 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.
*/
/**
* PHPMailerOAuth - PHPMailer subclass adding OAuth support.
* @package PHPMailer
* @author @sherryl4george
* @author Marcus Bointon (@Synchro) <phpmailer@synchromedia.co.uk>
*/
class PHPMailerOAuth extends PHPMailer
{
/**
* The OAuth user's email address
* @var string
*/
public $oauthUserEmail = '';
/**
* The OAuth refresh token
* @var string
*/
public $oauthRefreshToken = '';
/**
* The OAuth client ID
* @var string
*/
public $oauthClientId = '';
/**
* The OAuth client secret
* @var string
*/
public $oauthClientSecret = '';
/**
* An instance of the PHPMailerOAuthGoogle class.
* @var PHPMailerOAuthGoogle
* @access protected
*/
protected $oauth = null;
/**
* Get a PHPMailerOAuthGoogle instance to use.
* @return PHPMailerOAuthGoogle
*/
public function getOAUTHInstance()
{
if (!is_object($this->oauth)) {
$this->oauth = new PHPMailerOAuthGoogle(
$this->oauthUserEmail,
$this->oauthClientSecret,
$this->oauthClientId,
$this->oauthRefreshToken
);
}
return $this->oauth;
}
/**
* Initiate a connection to an SMTP server.
* Overrides the original smtpConnect method to add support for OAuth.
* @param array $options An array of options compatible with stream_context_create()
* @uses SMTP
* @access public
* @return bool
*/
public function smtpConnect($options = array())
{
if (is_null($this->smtp)) {
$this->smtp = $this->getSMTPInstance();
}
if (is_null($this->oauth)) {
$this->oauth = $this->getOAUTHInstance();
}
// Already connected?
if ($this->smtp->connected()) {
return true;
}
$this->smtp->setTimeout($this->Timeout);
$this->smtp->setDebugLevel($this->SMTPDebug);
$this->smtp->setDebugOutput($this->Debugoutput);
$this->smtp->setVerp($this->do_verp);
$hosts = explode(';', $this->Host);
$lastexception = null;
foreach ($hosts as $hostentry) {
$hostinfo = array();
if (!preg_match('/^((ssl|tls):\/\/)*([a-zA-Z0-9\.-]*):?([0-9]*)$/', trim($hostentry), $hostinfo)) {
// Not a valid host entry
continue;
}
// $hostinfo[2]: optional ssl or tls prefix
// $hostinfo[3]: the hostname
// $hostinfo[4]: optional port number
// The host string prefix can temporarily override the current setting for SMTPSecure
// If it's not specified, the default value is used
$prefix = '';
$secure = $this->SMTPSecure;
$tls = ($this->SMTPSecure == 'tls');
if ('ssl' == $hostinfo[2] or ('' == $hostinfo[2] and 'ssl' == $this->SMTPSecure)) {
$prefix = 'ssl://';
$tls = false; // Can't have SSL and TLS at the same time
$secure = 'ssl';
} elseif ($hostinfo[2] == 'tls') {
$tls = true;
// tls doesn't use a prefix
$secure = 'tls';
}
//Do we need the OpenSSL extension?
$sslext = defined('OPENSSL_ALGO_SHA1');
if ('tls' === $secure or 'ssl' === $secure) {
//Check for an OpenSSL constant rather than using extension_loaded, which is sometimes disabled
if (!$sslext) {
throw new phpmailerException($this->lang('extension_missing').'openssl', self::STOP_CRITICAL);
}
}
$host = $hostinfo[3];
$port = $this->Port;
$tport = (integer)$hostinfo[4];
if ($tport > 0 and $tport < 65536) {
$port = $tport;
}
if ($this->smtp->connect($prefix . $host, $port, $this->Timeout, $options)) {
try {
if ($this->Helo) {
$hello = $this->Helo;
} else {
$hello = $this->serverHostname();
}
$this->smtp->hello($hello);
//Automatically enable TLS encryption if:
// * it's not disabled
// * we have openssl extension
// * we are not already using SSL
// * the server offers STARTTLS
if ($this->SMTPAutoTLS and $sslext and $secure != 'ssl' and $this->smtp->getServerExt('STARTTLS')) {
$tls = true;
}
if ($tls) {
if (!$this->smtp->startTLS()) {
throw new phpmailerException($this->lang('connect_host'));
}
// We must resend HELO after tls negotiation
$this->smtp->hello($hello);
}
if ($this->SMTPAuth) {
if (!$this->smtp->authenticate(
$this->Username,
$this->Password,
$this->AuthType,
$this->Realm,
$this->Workstation,
$this->oauth
)
) {
throw new phpmailerException($this->lang('authenticate'));
}
}
return true;
} catch (phpmailerException $exc) {
$lastexception = $exc;
$this->edebug($exc->getMessage());
// We must have connected, but then failed TLS or Auth, so close connection nicely
$this->smtp->quit();
}
}
}
// If we get here, all connection attempts have failed, so close connection hard
$this->smtp->close();
// As we've caught all exceptions, just report whatever the last one was
if ($this->exceptions and !is_null($lastexception)) {
throw $lastexception;
}
return false;
}
}
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