/**
* Builds a Swift_Connection depending on the type (native, smtp, sendmail, multi, rotator)
* Params depend on the connection type
*
* - native:
* additional_params
*
* - smtp:
* server (*)
* port
* encryption (SSL, TLS, or OFF)
* authentication:
* username (*)
* password
* timeout
* requires_ehlo
*
* - sendmail:
* command
* flags
* timeout
* requires_ehlo
*
* - multi:
* connections:
* connection_name1:
* type
* params
* connection_name2:
* type
* params
* etc...
* requires_ehlo
*
* - rotator:
* connections:
* connection_name1:
* type
* params
* connection_name2:
* type
* params
* etc...
* requires_ehlo
*
* (*) Mandatory !
*
* @param string $type
* @param array $params
* @return Swift_Connection
*/
protected static function getConnection($type, $params = array())
{
switch ($type) {
case 'native':
$connection = new Swift_Connection_NativeMail();
if (@$params['additional_params']) {
$connection->setAdditionalMailParams($params['additional_params']);
}
break;
case 'smtp':
if (!@$params['encryption']) {
$params['encryption'] = 'OFF';
}
$encryption = constant('Swift_Connection_SMTP::ENC_' . $params['encryption']);
$connection = new Swift_Connection_SMTP($params['server'], @$params['port'], $encryption);
if (@$params['authentication']) {
$connection->setUsername(@$params['authentication']['username']);
$connection->setPassword(@$params['authentication']['password']);
}
if (@$params['timeout']) {
$connection->setTimeout($params['timeout']);
}
if (@$params['requires_ehlo']) {
$connection->setRequiresEHLO(true);
}
break;
case 'sendmail':
$connection = new Swift_Connection_Sendmail();
if (@$params['command']) {
$connection->setCommand($params['command']);
}
if (@$params['flags']) {
$connection->setFlags($params['flags']);
}
if (@$params['timeout']) {
$connection->setTimeout($params['timeout']);
}
if (@$params['requires_ehlo']) {
$connection->setRequiresEHLO(true);
}
break;
case 'multi':
$connection = new Swift_Connection_Multi();
foreach ($params['connections'] as $id => $conn_info) {
$connection->addConnection(self::getConnection($conn_info['type'], $conn_info['params']));
}
if (@$params['requires_ehlo']) {
$connection->setRequiresEHLO(true);
}
break;
case 'rotator':
$connection = new Swift_Connection_Multi();
foreach ($params['connections'] as $id => $conn_info) {
$connection->addConnection(self::getConnection($conn_info['type'], $conn_info['params']));
}
if (@$params['requires_ehlo']) {
$connection->setRequiresEHLO(true);
}
break;
}
return $connection;
}
