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📄 Source: MandrillHandler.php

<?php declare(strict_types=1);

/*
 * 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\Level;
use Swift;
use Swift_Message;

/**
 * MandrillHandler uses cURL to send the emails to the Mandrill API
 *
 * @author Adam Nicholson <adamnicholson10@gmail.com>
 */
class MandrillHandler extends MailHandler
{
    protected Swift_Message $message;
    protected string $apiKey;

    /**
     * @phpstan-param (Swift_Message|callable(): Swift_Message) $message
     *
     * @param string                 $apiKey  A valid Mandrill API key
     * @param callable|Swift_Message $message An example message for real messages, only the body will be replaced
     *
     * @throws \InvalidArgumentException if not a Swift Message is set
     */
    public function __construct(string $apiKey, callable|Swift_Message $message, int|string|Level $level = Level::Error, bool $bubble = true)
    {
        parent::__construct($level, $bubble);

        if (!$message instanceof Swift_Message) {
            $message = $message();
        }
        if (!$message instanceof Swift_Message) {
            throw new \InvalidArgumentException('You must provide either a Swift_Message instance or a callable returning it');
        }
        $this->message = $message;
        $this->apiKey = $apiKey;
    }

    /**
     * @inheritDoc
     */
    protected function send(string $content, array $records): void
    {
        $mime = 'text/plain';
        if ($this->isHtmlBody($content)) {
            $mime = 'text/html';
        }

        $message = clone $this->message;
        $message->setBody($content, $mime);
        /** @phpstan-ignore-next-line */
        if (version_compare(Swift::VERSION, '6.0.0', '>=')) {
            $message->setDate(new \DateTimeImmutable());
        } else {
            /** @phpstan-ignore-next-line */
            $message->setDate(time());
        }

        $ch = curl_init();

        curl_setopt($ch, CURLOPT_URL, 'https://mandrillapp.com/api/1.0/messages/send-raw.json');
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query([
            'key' => $this->apiKey,
            'raw_message' => (string) $message,
            'async' => false,
        ]));

        Curl\Util::execute($ch);
    }
}