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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\swiftmailer;
use Yii;
use yii\base\InvalidConfigException;
use yii\mail\BaseMailer;
/**
* Mailer implements a mailer based on SwiftMailer.
*
* To use Mailer, you should configure it in the application configuration like the following,
*
* ~~~
* 'components' => [
* ...
* 'mailer' => [
* 'class' => 'yii\swiftmailer\Mailer',
* 'transport' => [
* 'class' => 'Swift_SmtpTransport',
* 'host' => 'localhost',
* 'username' => 'username',
* 'password' => 'password',
* 'port' => '587',
* 'encryption' => 'tls',
* ],
* ],
* ...
* ],
* ~~~
*
* You may also skip the configuration of the [[transport]] property. In that case, the default
* PHP `mail()` function will be used to send emails.
*
* You specify the transport constructor arguments using 'constructArgs' key in the config.
* You can also specify the list of plugins, which should be registered to the transport using
* 'plugins' key. For example:
*
* ~~~
* 'transport' => [
* 'class' => 'Swift_SmtpTransport',
* 'constructArgs' => ['localhost', 25]
* 'plugins' => [
* [
* 'class' => 'Swift_Plugins_ThrottlerPlugin',
* 'constructArgs' => [20],
* ],
* ],
* ],
* ~~~
*
* To send an email, you may use the following code:
*
* ~~~
* Yii::$app->mailer->compose('contact/html', ['contactForm' => $form])
* ->setFrom('from@domain.com')
* ->setTo($form->email)
* ->setSubject($form->subject)
* ->send();
* ~~~
*
* @see http://swiftmailer.org
*
* @property array|\Swift_Mailer $swiftMailer Swift mailer instance or array configuration. This property is
* read-only.
* @property array|\Swift_Transport $transport This property is read-only.
*
* @author Paul Klimov <klimov.paul@gmail.com>
* @since 2.0
*/
class Mailer extends BaseMailer
{
/**
* @var string message default class name.
*/
public $messageClass = 'yii\swiftmailer\Message';
/**
* @var \Swift_Mailer Swift mailer instance.
*/
private $_swiftMailer;
/**
* @var \Swift_Transport|array Swift transport instance or its array configuration.
*/
private $_transport = [];
/**
* @return array|\Swift_Mailer Swift mailer instance or array configuration.
*/
public function getSwiftMailer()
{
if (!is_object($this->_swiftMailer)) {
$this->_swiftMailer = $this->createSwiftMailer();
}
return $this->_swiftMailer;
}
/**
* @param array|\Swift_Transport $transport
* @throws InvalidConfigException on invalid argument.
*/
public function setTransport($transport)
{
if (!is_array($transport) && !is_object($transport)) {
throw new InvalidConfigException('"' . get_class($this) . '::transport" should be either object or array, "' . gettype($transport) . '" given.');
}
$this->_transport = $transport;
}
/**
* @return array|\Swift_Transport
*/
public function getTransport()
{
if (!is_object($this->_transport)) {
$this->_transport = $this->createTransport($this->_transport);
}
return $this->_transport;
}
/**
* @inheritdoc
*/
protected function sendMessage($message)
{
$address = $message->getTo();
if (is_array($address)) {
$address = implode(', ', array_keys($address));
}
Yii::info('Sending email "' . $message->getSubject() . '" to "' . $address . '"', __METHOD__);
return $this->getSwiftMailer()->send($message->getSwiftMessage()) > 0;
}
/**
* Creates Swift mailer instance.
* @return \Swift_Mailer mailer instance.
*/
protected function createSwiftMailer()
{
return \Swift_Mailer::newInstance($this->getTransport());
}
/**
* Creates email transport instance by its array configuration.
* @param array $config transport configuration.
* @throws \yii\base\InvalidConfigException on invalid transport configuration.
* @return \Swift_Transport transport instance.
*/
protected function createTransport(array $config)
{
if (!isset($config['class'])) {
$config['class'] = 'Swift_MailTransport';
}
if (isset($config['plugins'])) {
$plugins = $config['plugins'];
unset($config['plugins']);
}
/* @var $transport \Swift_MailTransport */
$transport = $this->createSwiftObject($config);
if (isset($plugins)) {
foreach ($plugins as $plugin) {
if (is_array($plugin) && isset($plugin['class'])) {
$plugin = $this->createSwiftObject($plugin);
}
$transport->registerPlugin($plugin);
}
}
return $transport;
}
/**
* Creates Swift library object, from given array configuration.
* @param array $config object configuration
* @return Object created object
* @throws \yii\base\InvalidConfigException on invalid configuration.
*/
protected function createSwiftObject(array $config)
{
if (isset($config['class'])) {
$className = $config['class'];
unset($config['class']);
} else {
throw new InvalidConfigException('Object configuration must be an array containing a "class" element.');
}
if (isset($config['constructArgs'])) {
$args = [];
foreach ($config['constructArgs'] as $arg) {
if (is_array($arg) && isset($arg['class'])) {
$args[] = $this->createSwiftObject($arg);
} else {
$args[] = $arg;
}
}
unset($config['constructArgs']);
$object = Yii::createObject($className, $args);
} else {
$object = Yii::createObject($className);
}
if (!empty($config)) {
foreach ($config as $name => $value) {
if (property_exists($object, $name)) {
$object->$name = $value;
} else {
$setter = 'set' . $name;
if (method_exists($object, $setter) || method_exists($object, '__call')) {
$object->$setter($value);
} else {
throw new InvalidConfigException('Setting unknown property: ' . $className . '::' . $name);
}
}
}
}
return $object;
}
}