SwiftMailerHandler.php

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<?php
 
/*
 * This file is part of the Monolog package.
 *
 * (c) Jordi Boggiano <j.boggiano@seld.be>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
 
namespace Monolog\Handler;
 
use Monolog\Logger;
use Monolog\Formatter\FormatterInterface;
use Monolog\Formatter\LineFormatter;
use Swift;
 
class SwiftMailerHandler extends MailHandler
{
    protected $mailer;
    private $messageTemplate;
 
    public function __construct(\Swift_Mailer $mailer, $message, $level = Logger::ERROR, $bubble = true)
    {
        parent::__construct($level, $bubble);
 
        $this->mailer = $mailer;
        $this->messageTemplate = $message;
    }
 
    protected function send($content, array $records)
    {
        $this->mailer->send($this->buildMessage($content, $records));
    }
 
    protected function getSubjectFormatter($format)
    {
        return new LineFormatter($format);
    }
 
    protected function buildMessage($content, array $records)
    {
        $message = null;
        if ($this->messageTemplate instanceof \Swift_Message) {
            $message = clone $this->messageTemplate;
            $message->generateId();
        } elseif (is_callable($this->messageTemplate)) {
            $message = call_user_func($this->messageTemplate, $content, $records);
        }
 
        if (!$message instanceof \Swift_Message) {
            throw new \InvalidArgumentException('Could not resolve message as instance of Swift_Message or a callable returning it');
        }
 
        if ($records) {
            $subjectFormatter = $this->getSubjectFormatter($message->getSubject());
            $message->setSubject($subjectFormatter->format($this->getHighestRecord($records)));
        }
 
        $message->setBody($content);
        if (version_compare(Swift::VERSION, '6.0.0', '>=')) {
            $message->setDate(new \DateTimeImmutable());
        } else {
            $message->setDate(time());
        }
 
        return $message;
    }
 
    public function __get($name)
    {
        if ($name === 'message') {
            trigger_error('SwiftMailerHandler->message is deprecated, use ->buildMessage() instead to retrieve the message', E_USER_DEPRECATED);
 
            return $this->buildMessage(null, array());
        }
 
        throw new \InvalidArgumentException('Invalid property '.$name);
    }
}