<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Mailer\Transport;

use Psr\EventDispatcher\EventDispatcherInterface;
use Psr\Log\LoggerInterface;
use Symfony\Component\Mailer\Envelope;
use Symfony\Component\Mailer\SentMessage;
use Symfony\Component\Mailer\Transport\Smtp\SmtpTransport;
use Symfony\Component\Mailer\Transport\Smtp\Stream\AbstractStream;
use Symfony\Component\Mailer\Transport\Smtp\Stream\ProcessStream;
use Symfony\Component\Mime\RawMessage;

/**
 * SendmailTransport for sending mail through a Sendmail/Postfix (etc..) binary.
 *
 * Transport can be instantiated through SendmailTransportFactory or NativeTransportFactory:
 *
 * - SendmailTransportFactory to use most common sendmail path and recommended options
 * - NativeTransportFactory when configuration is set via php.ini
 *
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Chris Corbyn
 */
class SendmailTransport extends AbstractTransport
{
    private string $command = '/usr/sbin/sendmail -bs';
    private $stream;
    private $transport = null;

    /**
     * Constructor.
     *
     * Supported modes are -bs and -t, with any additional flags desired.
     *
     * The recommended mode is "-bs" since it is interactive and failure notifications are hence possible.
     * Note that the -t mode does not support error reporting and does not support Bcc properly (the Bcc headers are not removed).
     *
     * If using -t mode, you are strongly advised to include -oi or -i in the flags (like /usr/sbin/sendmail -oi -t)
     *
     * -f<sender> flag will be appended automatically if one is not present.
     */
    public function __construct(string $command = null, EventDispatcherInterface $dispatcher = null, LoggerInterface $logger = null)
    {
        parent::__construct($dispatcher, $logger);

        if (null !== $command) {
            if (!str_contains($command, ' -bs') && !str_contains($command, ' -t')) {
                throw new \InvalidArgumentException(sprintf('Unsupported sendmail command flags "%s"; must be one of "-bs" or "-t" but can include additional flags.', $command));
            }

            $this->command = $command;
        }

        $this->stream = new ProcessStream();
        if (str_contains($this->command, ' -bs')) {
            $this->stream->setCommand($this->command);
            $this->transport = new SmtpTransport($this->stream, $dispatcher, $logger);
        }
    }

    public function send(RawMessage $message, Envelope $envelope = null): ?SentMessage
    {
        if ($this->transport) {
            return $this->transport->send($message, $envelope);
        }

        return parent::send($message, $envelope);
    }

    public function __toString(): string
    {
        if ($this->transport) {
            return (string) $this->transport;
        }

        return 'smtp://sendmail';
    }

    protected function doSend(SentMessage $message): void
    {
        $this->getLogger()->debug(sprintf('Email transport "%s" starting', __CLASS__));

        $command = $this->command;

        if ($recipients = $message->getEnvelope()->getRecipients()) {
            $command = str_replace(' -t', '', $command);
        }

        if (!str_contains($command, ' -f')) {
            $command .= ' -f'.escapeshellarg($message->getEnvelope()->getSender()->getEncodedAddress());
        }

        $chunks = AbstractStream::replace("\r\n", "\n", $message->toIterable());

        if (!str_contains($command, ' -i') && !str_contains($command, ' -oi')) {
            $chunks = AbstractStream::replace("\n.", "\n..", $chunks);
        }

        foreach ($recipients as $recipient) {
            $command .= ' '.escapeshellarg($recipient->getEncodedAddress());
        }

        $this->stream->setCommand($command);
        $this->stream->initialize();
        foreach ($chunks as $chunk) {
            $this->stream->write($chunk);
        }
        $this->stream->flush();
        $this->stream->terminate();

        $this->getLogger()->debug(sprintf('Email transport "%s" stopped', __CLASS__));
    }
}

• [D] Smtp
• [F] AbstractApiTransport.php
  Delete
• [F] AbstractHttpTransport.php
  Delete
• [F] AbstractTransport.php
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• [F] AbstractTransportFactory.php
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• [F] Dsn.php
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• [F] FailoverTransport.php
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• [F] NativeTransportFactory.php
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• [F] NullTransport.php
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• [F] NullTransportFactory.php
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• [F] RoundRobinTransport.php
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• [F] SendmailTransport.php
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• [F] SendmailTransportFactory.php
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• [F] TransportFactoryInterface.php
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• [F] TransportInterface.php
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• [F] Transports.php
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About Section

About NFC Pay: Our Story and Mission

NFC Pay was founded with a vision to transform the way people handle transactions. Our journey is defined by a commitment to innovation, security, and convenience. We strive to deliver seamless, user-friendly payment solutions that make everyday transactions effortless and secure. Our mission is to empower you to pay with ease and confidence, anytime, anywhere.

• Simplifying Payments, One Tap at a Time.
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FAQ Section

Frequently Asked Questions About NFC Pay

Here are answers to some common questions about NFC Pay. We aim to provide clear and concise information to help you understand how our platform works and how it can benefit you. If you have any further inquiries, please don’t hesitate to contact our support team.

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