protected static function createTwigLoader(Settings $settings)
{
if (!$settings->has('template_paths')) {
throw new RuntimeError('Missing "template_paths" settings with template lookup locations.');
}
$template_paths = (array) $settings->get('template_paths', []);
$loader = new FilesystemLoader($template_paths);
if ($settings->has('allowed_template_extensions')) {
$loader->setAllowedExtensions((array) $settings->get('allowed_template_extensions'));
}
if (!$settings->has('cache_scope')) {
$loader->setScope(spl_object_hash($loader));
// unique scope for each new loader instance
} else {
$loader->setScope($settings->get('cache_scope', FilesystemLoader::SCOPE_DEFAULT));
}
return $loader;
}
/**
* Returns the value for the given key.
*
* @param mixed $key key to get value of
* @param mixed $default value to return if key doesn't exist
*
* @return mixed value for that key or default given
*/
public function get($key, $default = null)
{
return $this->settings->get($key, $default);
}
/**
* Returns a string representation of the guard.
*
* @return string
*/
public function __toString()
{
return ' if ' . $this->options->get('expression');
}
/**
* Create Swift_Message instance from the given MailInterface instance.
*
* @param MailInterface $message instance to create Swift_Message from
* @param string $mailer_config_name name of the mailer config to get settings from
*
* @return Swift_Message instance
*
* @throws MessageConfigurationException in case of misconfigured message
* @throws InvalidArgumentException in case of unknown mailer name from config
*/
public function createSwiftMessage(MailInterface $message, $mailer_config_name = null)
{
$settings = $this->getMailerSettings($mailer_config_name);
$message_defaults = new Settings((array) $settings->get('address_defaults', []));
$message_overrides = new Settings((array) $settings->get('address_overrides', []));
Swift_Preferences::getInstance()->setCharset($settings->get('charset', 'utf-8'));
$mail = Swift_Message::newInstance();
$mail->setSubject($message->getSubject($settings->get('default_subject')));
$from = $message_overrides->get('from', $message->getFrom($message_defaults->get('from')));
if (!empty($from)) {
$mail->setFrom($from);
}
$sender = $message_overrides->get('sender', $message->getSender($message_defaults->get('sender')));
if (!empty($sender)) {
$mail->setSender($sender);
}
// sender is mandatory if multiple from addresses are set
if (is_array($from) && count($from) > 1 && empty($sender)) {
throw new MessageConfigurationException('A single "sender" email address must be specified when multiple "from" email addresses are set.');
}
// we need at least a sender or a from to be honest citizens
if (empty($from) && empty($sender)) {
throw new MessageConfigurationException('Either "from" or "sender" must be set with a valid email address on a message.' . 'Usually "from" is considered to be mandatory with the "sender" being optional ' . 'to distinguish between writers of an email and its actual sender.');
}
$reply_to = $message_overrides->get('reply_to', $message->getReplyTo($message_defaults->get('reply_to')));
if (!empty($reply_to)) {
$mail->setReplyTo($reply_to);
}
$return_path = $message_overrides->get('return_path', $message->getReturnPath($message_defaults->get('return_path')));
if (!empty($return_path)) {
// Swift only wants a string as email on the return path (despite the behaviour on other address fields)
if (is_array($return_path)) {
$return_path = array_keys($return_path);
$return_path = array_shift($return_path);
}
$mail->setReturnPath($return_path);
}
$date = $message->getDate($message_defaults->get('date'));
if ($settings->has('default_date')) {
$date = strtotime($settings->get('default_date'));
}
if (!empty($date) && is_int($date)) {
$mail->setDate($date);
}
$to = $message_overrides->get('to', $message->getTo($message_defaults->get('to')));
if (!empty($to)) {
$mail->setTo($to);
}
$cc = $message_overrides->get('cc', $message->getCc($message_defaults->get('cc')));
if (!empty($cc)) {
$mail->setCc($cc);
}
$bcc = $message_overrides->get('bcc', $message->getBcc($message_defaults->get('bcc')));
if (!empty($bcc)) {
$mail->setBcc($bcc);
}
$body_html = $message->getBodyHtml($message_defaults->get('default_body_html'));
if (!empty($body_html)) {
$mail->addPart($body_html, "text/html");
}
$body_text = $message->getBodyText($message_defaults->get('default_body_text'));
if (!empty($body_text)) {
$mail->addPart($body_text, "text/plain");
}
$attachments = $message->getAttachments();
if (!empty($attachments)) {
foreach ($attachments as $attachment) {
if (!is_array($attachment)) {
continue;
}
$mail->attach($this->createSwiftAttachment($attachment));
}
}
// if to, cc or bcc are set we have to override them if a setting is set
$override_all_recipients = $settings->get('override_all_recipients', false);
if (false !== $override_all_recipients && !empty($override_all_recipients)) {
if (!empty($to)) {
$to = $override_all_recipients;
// for later validation
$mail->setTo($to);
}
if (!empty($cc)) {
$cc = $override_all_recipients;
// for later validation
$mail->setCc($cc);
}
if (!empty($bcc)) {
$bcc = $override_all_recipients;
// for later validation
$mail->setBcc($bcc);
}
}
// we won't send mails without recipients
if (empty($to) && empty($cc) && empty($bcc)) {
throw new MessageConfigurationException('No recipients are set for this email. Set "to", "cc" and/or "bcc" email addresses on the message.');
}
// do not allow too long text lines
if ($settings->has('max_line_length')) {
$mail->setMaxLineLength((int) $settings->get('max_line_length', 78));
}
// add X-Priority header
if ($settings->has('priority')) {
$mail->setPriority((int) $settings->get('priority', 3));
}
// request read receipts if necessary
if ($settings->has('read_receipt_to')) {
$mail->setReadReceiptTo($settings->get('read_receipt_to'));
}
return $mail;
}
