/**
* Initiate a connection to an SMTP server.
* Returns false if the operation failed.
* @param array $options An array of options compatible with stream_context_create()
* @uses SMTP
* @access public
* @throws phpmailerException
* @return boolean
*/
public function smtpConnect($options = array())
{
if (is_null($this->smtp)) {
$this->smtp = $this->getSMTPInstance();
}
// Already connected?
if ($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 = (int) $hostinfo[4];
if ($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, $this->Workstation)) {
throw new phpmailerException($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;
}
/**
* Initiate a connection to an SMTP server.
* Returns false if the operation failed.
*
* @param array $options An array of options compatible with stream_context_create()
*
* @uses SMTP
*
* @throws phpmailerException
*
* @return bool
*/
public function smtpConnect($options = [])
{
if (is_null($this->smtp)) {
$this->smtp = $this->getSMTPInstance();
}
// Already connected?
if ($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) {
$hostinfo = [];
if (!preg_match('/^((ssl|tls):\\/\\/)*([a-zA-Z0-9\\.-]*):?([0-9]*)$/', 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 = '';
$tls = $this->SMTPSecure == 'tls';
if ($hostinfo[2] == 'ssl' or $hostinfo[2] == '' and $this->SMTPSecure == 'ssl') {
$prefix = 'ssl://';
$tls = false;
// Can't have SSL and TLS at once
} elseif ($hostinfo[2] == 'tls') {
$tls = true;
// tls doesn't use a prefix
}
$host = $hostinfo[3];
$port = $this->Port;
$tport = (int) $hostinfo[4];
if ($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);
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, $this->Workstation)) {
throw new phpmailerException($this->lang('authenticate'));
}
}
return true;
} catch (phpmailerException $exc) {
$lastexception = $exc;
// 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;
}