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<?php
namespace Drupal\Core\Mail\Plugin\Mail;
use Drupal\Component\Utility\Unicode;
use Drupal\Core\Mail\MailFormatHelper;
use Drupal\Core\Mail\MailInterface;
use Drupal\Core\Site\Settings;
/**
* Defines the default Drupal mail backend, using PHP's native mail() function.
*
* @Mail(
* id = "php_mail",
* label = @Translation("Default PHP mailer"),
* description = @Translation("Sends the message as plain text, using PHP's native mail() function.")
* )
*/
class PhpMail implements MailInterface {
/**
* Concatenates and wraps the email body for plain-text mails.
*
* @param array $message
* A message array, as described in hook_mail_alter().
*
* @return array
* The formatted $message.
*/
public function format(array $message) {
// Join the body array into one string.
$message['body'] = implode("\n\n", $message['body']);
// Convert any HTML to plain-text.
$message['body'] = MailFormatHelper::htmlToText($message['body']);
// Wrap the mail body for sending.
$message['body'] = MailFormatHelper::wrapMail($message['body']);
return $message;
}
/**
* Sends an email message.
*
* @param array $message
* A message array, as described in hook_mail_alter().
*
* @return bool
* TRUE if the mail was successfully accepted, otherwise FALSE.
*
* @see http://php.net/manual/function.mail.php
* @see \Drupal\Core\Mail\MailManagerInterface::mail()
*/
public function mail(array $message) {
// If 'Return-Path' isn't already set in php.ini, we pass it separately
// as an additional parameter instead of in the header.
if (isset($message['headers']['Return-Path'])) {
$return_path_set = strpos(ini_get('sendmail_path'), ' -f');
if (!$return_path_set) {
$message['Return-Path'] = $message['headers']['Return-Path'];
unset($message['headers']['Return-Path']);
}
}
$mimeheaders = [];
foreach ($message['headers'] as $name => $value) {
$mimeheaders[] = $name . ': ' . Unicode::mimeHeaderEncode($value);
}
$line_endings = Settings::get('mail_line_endings', PHP_EOL);
// Prepare mail commands.
$mail_subject = Unicode::mimeHeaderEncode($message['subject']);
// Note: email uses CRLF for line-endings. PHP's API requires LF
// on Unix and CRLF on Windows. Drupal automatically guesses the
// line-ending format appropriate for your system. If you need to
// override this, adjust $settings['mail_line_endings'] in settings.php.
$mail_body = preg_replace('@\r?\n@', $line_endings, $message['body']);
// For headers, PHP's API suggests that we use CRLF normally,
// but some MTAs incorrectly replace LF with CRLF. See #234403.
$mail_headers = join("\n", $mimeheaders);
$request = \Drupal::request();
// We suppress warnings and notices from mail() because of issues on some
// hosts. The return value of this method will still indicate whether mail
// was sent successfully.
if (!$request->server->has('WINDIR') && strpos($request->server->get('SERVER_SOFTWARE'), 'Win32') === FALSE) {
// On most non-Windows systems, the "-f" option to the sendmail command
// is used to set the Return-Path. There is no space between -f and
// the value of the return path.
$additional_headers = isset($message['Return-Path']) ? '-f' . $message['Return-Path'] : '';
$mail_result = @mail(
$message['to'],
$mail_subject,
$mail_body,
$mail_headers,
$additional_headers
);
}
else {
// On Windows, PHP will use the value of sendmail_from for the
// Return-Path header.
$old_from = ini_get('sendmail_from');
ini_set('sendmail_from', $message['Return-Path']);
$mail_result = @mail(
$message['to'],
$mail_subject,
$mail_body,
$mail_headers
);
ini_set('sendmail_from', $old_from);
}
return $mail_result;
}
}