/**
* Creates a SwiftMailer instance.
*
* @param string DSN connection string
* @return object Swift object
*/
public static function connect($config = NULL)
{
if (!class_exists('Swift', FALSE)) {
// Load SwiftMailer
require Kohana::find_file('vendor', 'swift/Swift');
// Register the Swift ClassLoader as an autoload
spl_autoload_register(array('Swift_ClassLoader', 'load'));
}
// Load default configuration
$config === NULL and $config = Kohana::config('email');
switch ($config['driver']) {
case 'smtp':
// Set port
$port = empty($config['options']['port']) ? NULL : (int) $config['options']['port'];
if (empty($config['options']['encryption'])) {
// No encryption
$encryption = Swift_Connection_SMTP::ENC_OFF;
} else {
// Set encryption
switch (strtolower($config['options']['encryption'])) {
case 'tls':
$encryption = Swift_Connection_SMTP::ENC_TLS;
break;
case 'ssl':
$encryption = Swift_Connection_SMTP::ENC_SSL;
break;
}
}
// Create a SMTP connection
$connection = new Swift_Connection_SMTP($config['options']['hostname'], $port, $encryption);
// Do authentication, if part of the DSN
empty($config['options']['username']) or $connection->setUsername($config['options']['username']);
empty($config['options']['password']) or $connection->setPassword($config['options']['password']);
if (!empty($config['options']['auth'])) {
// Get the class name and params
list($class, $params) = arr::callback_string($config['options']['auth']);
if ($class === 'PopB4Smtp') {
// Load the PopB4Smtp class manually, due to its odd filename
require Kohana::find_file('vendor', 'swift/Swift/Authenticator/$PopB4Smtp$');
}
// Prepare the class name for auto-loading
$class = 'Swift_Authenticator_' . $class;
// Attach the authenticator
$connection->attachAuthenticator($params === NULL ? new $class() : new $class($params[0]));
}
// Set the timeout to 5 seconds
$connection->setTimeout(empty($config['options']['timeout']) ? 5 : (int) $config['options']['timeout']);
break;
case 'sendmail':
// Create a sendmail connection
$connection = new Swift_Connection_Sendmail(empty($config['options']) ? Swift_Connection_Sendmail::AUTO_DETECT : $config['options']);
// Set the timeout to 5 seconds
$connection->setTimeout(5);
break;
default:
// Use the native connection
$connection = new Swift_Connection_NativeMail($config['options']);
break;
}
// Create the SwiftMailer instance
return email::$mail = new Swift($connection);
}
/**
* 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;
}
