Build modified streamline images

The official image from streamline does not currently work for the arm64
platform. As a temporary measure, the source code and docker build scripts
have been lifted from the official images and are used to build locally.

Some additional modifications are made to reduce overall image size, these
are documented in docker/README.md

docker/streamline-src/vendor/symfony/mailer/Transport/AbstractApiTransport.php

@@ -0,0 +1,47 @@
+<?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 Symfony\Component\Mailer\Envelope;
+use Symfony\Component\Mailer\Exception\RuntimeException;
+use Symfony\Component\Mailer\SentMessage;
+use Symfony\Component\Mime\Address;
+use Symfony\Component\Mime\Email;
+use Symfony\Component\Mime\MessageConverter;
+use Symfony\Contracts\HttpClient\ResponseInterface;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+abstract class AbstractApiTransport extends AbstractHttpTransport
+{
+    abstract protected function doSendApi(SentMessage $sentMessage, Email $email, Envelope $envelope): ResponseInterface;
+
+    protected function doSendHttp(SentMessage $message): ResponseInterface
+    {
+        try {
+            $email = MessageConverter::toEmail($message->getOriginalMessage());
+        } catch (\Exception $e) {
+            throw new RuntimeException(sprintf('Unable to send message with the "%s" transport: ', __CLASS__).$e->getMessage(), 0, $e);
+        }
+
+        return $this->doSendApi($message, $email, $message->getEnvelope());
+    }
+
+    /**
+     * @return Address[]
+     */
+    protected function getRecipients(Email $email, Envelope $envelope): array
+    {
+        return array_filter($envelope->getRecipients(), fn (Address $address) => false === \in_array($address, array_merge($email->getCc(), $email->getBcc()), true));
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/AbstractHttpTransport.php

@@ -0,0 +1,78 @@
+<?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\HttpClient\HttpClient;
+use Symfony\Component\Mailer\Exception\HttpTransportException;
+use Symfony\Component\Mailer\SentMessage;
+use Symfony\Contracts\HttpClient\HttpClientInterface;
+use Symfony\Contracts\HttpClient\ResponseInterface;
+
+/**
+ * @author Victor Bocharsky <victor@symfonycasts.com>
+ */
+abstract class AbstractHttpTransport extends AbstractTransport
+{
+    protected $host;
+    protected $port;
+    protected $client;
+
+    public function __construct(?HttpClientInterface $client = null, ?EventDispatcherInterface $dispatcher = null, ?LoggerInterface $logger = null)
+    {
+        $this->client = $client;
+        if (null === $client) {
+            if (!class_exists(HttpClient::class)) {
+                throw new \LogicException(sprintf('You cannot use "%s" as the HttpClient component is not installed. Try running "composer require symfony/http-client".', __CLASS__));
+            }
+
+            $this->client = HttpClient::create();
+        }
+
+        parent::__construct($dispatcher, $logger);
+    }
+
+    /**
+     * @return $this
+     */
+    public function setHost(?string $host): static
+    {
+        $this->host = $host;
+
+        return $this;
+    }
+
+    /**
+     * @return $this
+     */
+    public function setPort(?int $port): static
+    {
+        $this->port = $port;
+
+        return $this;
+    }
+
+    abstract protected function doSendHttp(SentMessage $message): ResponseInterface;
+
+    protected function doSend(SentMessage $message): void
+    {
+        try {
+            $response = $this->doSendHttp($message);
+            $message->appendDebug($response->getInfo('debug') ?? '');
+        } catch (HttpTransportException $e) {
+            $e->appendDebug($e->getResponse()->getInfo('debug') ?? '');
+
+            throw $e;
+        }
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/AbstractTransport.php

@@ -0,0 +1,136 @@
+<?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 Psr\Log\NullLogger;
+use Symfony\Bridge\Twig\Mime\TemplatedEmail;
+use Symfony\Component\Mailer\Envelope;
+use Symfony\Component\Mailer\Event\FailedMessageEvent;
+use Symfony\Component\Mailer\Event\MessageEvent;
+use Symfony\Component\Mailer\Event\SentMessageEvent;
+use Symfony\Component\Mailer\Exception\LogicException;
+use Symfony\Component\Mailer\SentMessage;
+use Symfony\Component\Mime\Address;
+use Symfony\Component\Mime\BodyRendererInterface;
+use Symfony\Component\Mime\RawMessage;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+abstract class AbstractTransport implements TransportInterface
+{
+    private ?EventDispatcherInterface $dispatcher;
+    private LoggerInterface $logger;
+    private float $rate = 0;
+    private float $lastSent = 0;
+
+    public function __construct(?EventDispatcherInterface $dispatcher = null, ?LoggerInterface $logger = null)
+    {
+        $this->dispatcher = $dispatcher;
+        $this->logger = $logger ?? new NullLogger();
+    }
+
+    /**
+     * Sets the maximum number of messages to send per second (0 to disable).
+     *
+     * @return $this
+     */
+    public function setMaxPerSecond(float $rate): static
+    {
+        if (0 >= $rate) {
+            $rate = 0;
+        }
+
+        $this->rate = $rate;
+        $this->lastSent = 0;
+
+        return $this;
+    }
+
+    public function send(RawMessage $message, ?Envelope $envelope = null): ?SentMessage
+    {
+        $message = clone $message;
+        $envelope = null !== $envelope ? clone $envelope : Envelope::create($message);
+
+        try {
+            if (!$this->dispatcher) {
+                $sentMessage = new SentMessage($message, $envelope);
+                $this->doSend($sentMessage);
+
+                return $sentMessage;
+            }
+
+            $event = new MessageEvent($message, $envelope, (string) $this);
+            $this->dispatcher->dispatch($event);
+            if ($event->isRejected()) {
+                return null;
+            }
+
+            $envelope = $event->getEnvelope();
+            $message = $event->getMessage();
+
+            if ($message instanceof TemplatedEmail && !$message->isRendered()) {
+                throw new LogicException(sprintf('You must configure a "%s" when a "%s" instance has a text or HTML template set.', BodyRendererInterface::class, get_debug_type($message)));
+            }
+
+            $sentMessage = new SentMessage($message, $envelope);
+
+            try {
+                $this->doSend($sentMessage);
+            } catch (\Throwable $error) {
+                $this->dispatcher->dispatch(new FailedMessageEvent($message, $error));
+                $this->checkThrottling();
+
+                throw $error;
+            }
+
+            $this->dispatcher->dispatch(new SentMessageEvent($sentMessage));
+
+            return $sentMessage;
+        } finally {
+            $this->checkThrottling();
+        }
+    }
+
+    abstract protected function doSend(SentMessage $message): void;
+
+    /**
+     * @param Address[] $addresses
+     *
+     * @return string[]
+     */
+    protected function stringifyAddresses(array $addresses): array
+    {
+        return array_map(fn (Address $a) => $a->toString(), $addresses);
+    }
+
+    protected function getLogger(): LoggerInterface
+    {
+        return $this->logger;
+    }
+
+    private function checkThrottling(): void
+    {
+        if (0 == $this->rate) {
+            return;
+        }
+
+        $sleep = (1 / $this->rate) - (microtime(true) - $this->lastSent);
+        if (0 < $sleep) {
+            $this->logger->debug(sprintf('Email transport "%s" sleeps for %.2f seconds', __CLASS__, $sleep));
+            usleep((int) ($sleep * 1000000));
+        }
+        $this->lastSent = microtime(true);
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/AbstractTransportFactory.php

@@ -0,0 +1,51 @@
+<?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\Exception\IncompleteDsnException;
+use Symfony\Contracts\HttpClient\HttpClientInterface;
+
+/**
+ * @author Konstantin Myakshin <molodchick@gmail.com>
+ */
+abstract class AbstractTransportFactory implements TransportFactoryInterface
+{
+    protected $dispatcher;
+    protected $client;
+    protected $logger;
+
+    public function __construct(?EventDispatcherInterface $dispatcher = null, ?HttpClientInterface $client = null, ?LoggerInterface $logger = null)
+    {
+        $this->dispatcher = $dispatcher;
+        $this->client = $client;
+        $this->logger = $logger;
+    }
+
+    public function supports(Dsn $dsn): bool
+    {
+        return \in_array($dsn->getScheme(), $this->getSupportedSchemes());
+    }
+
+    abstract protected function getSupportedSchemes(): array;
+
+    protected function getUser(Dsn $dsn): string
+    {
+        return $dsn->getUser() ?? throw new IncompleteDsnException('User is not set.');
+    }
+
+    protected function getPassword(Dsn $dsn): string
+    {
+        return $dsn->getPassword() ?? throw new IncompleteDsnException('Password is not set.');
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/Dsn.php

@@ -0,0 +1,89 @@
+<?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 Symfony\Component\Mailer\Exception\InvalidArgumentException;
+
+/**
+ * @author Konstantin Myakshin <molodchick@gmail.com>
+ */
+final class Dsn
+{
+    private string $scheme;
+    private string $host;
+    private ?string $user;
+    private ?string $password;
+    private ?int $port;
+    private array $options;
+
+    public function __construct(string $scheme, string $host, ?string $user = null, #[\SensitiveParameter] ?string $password = null, ?int $port = null, array $options = [])
+    {
+        $this->scheme = $scheme;
+        $this->host = $host;
+        $this->user = $user;
+        $this->password = $password;
+        $this->port = $port;
+        $this->options = $options;
+    }
+
+    public static function fromString(#[\SensitiveParameter] string $dsn): self
+    {
+        if (false === $params = parse_url($dsn)) {
+            throw new InvalidArgumentException('The mailer DSN is invalid.');
+        }
+
+        if (!isset($params['scheme'])) {
+            throw new InvalidArgumentException('The mailer DSN must contain a scheme.');
+        }
+
+        if (!isset($params['host'])) {
+            throw new InvalidArgumentException('The mailer DSN must contain a host (use "default" by default).');
+        }
+
+        $user = '' !== ($params['user'] ?? '') ? rawurldecode($params['user']) : null;
+        $password = '' !== ($params['pass'] ?? '') ? rawurldecode($params['pass']) : null;
+        $port = $params['port'] ?? null;
+        parse_str($params['query'] ?? '', $query);
+
+        return new self($params['scheme'], $params['host'], $user, $password, $port, $query);
+    }
+
+    public function getScheme(): string
+    {
+        return $this->scheme;
+    }
+
+    public function getHost(): string
+    {
+        return $this->host;
+    }
+
+    public function getUser(): ?string
+    {
+        return $this->user;
+    }
+
+    public function getPassword(): ?string
+    {
+        return $this->password;
+    }
+
+    public function getPort(?int $default = null): ?int
+    {
+        return $this->port ?? $default;
+    }
+
+    public function getOption(string $key, mixed $default = null): mixed
+    {
+        return $this->options[$key] ?? $default;
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/FailoverTransport.php

@@ -0,0 +1,41 @@
+<?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;
+
+/**
+ * Uses several Transports using a failover algorithm.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class FailoverTransport extends RoundRobinTransport
+{
+    private ?TransportInterface $currentTransport = null;
+
+    protected function getNextTransport(): ?TransportInterface
+    {
+        if (null === $this->currentTransport || $this->isTransportDead($this->currentTransport)) {
+            $this->currentTransport = parent::getNextTransport();
+        }
+
+        return $this->currentTransport;
+    }
+
+    protected function getInitialCursor(): int
+    {
+        return 0;
+    }
+
+    protected function getNameSymbol(): string
+    {
+        return 'failover';
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/NativeTransportFactory.php

@@ -0,0 +1,63 @@
+<?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 Symfony\Component\Mailer\Exception\TransportException;
+use Symfony\Component\Mailer\Exception\UnsupportedSchemeException;
+use Symfony\Component\Mailer\Transport\Smtp\SmtpTransport;
+use Symfony\Component\Mailer\Transport\Smtp\Stream\SocketStream;
+
+/**
+ * Factory that configures a transport (sendmail or SMTP) based on php.ini settings.
+ *
+ * @author Laurent VOULLEMIER <laurent.voullemier@gmail.com>
+ */
+final class NativeTransportFactory extends AbstractTransportFactory
+{
+    public function create(Dsn $dsn): TransportInterface
+    {
+        if (!\in_array($dsn->getScheme(), $this->getSupportedSchemes(), true)) {
+            throw new UnsupportedSchemeException($dsn, 'native', $this->getSupportedSchemes());
+        }
+
+        if ($sendMailPath = ini_get('sendmail_path')) {
+            return new SendmailTransport($sendMailPath, $this->dispatcher, $this->logger);
+        }
+
+        if ('\\' !== \DIRECTORY_SEPARATOR) {
+            throw new TransportException('sendmail_path is not configured in php.ini.');
+        }
+
+        // Only for windows hosts; at this point non-windows
+        // host have already thrown an exception or returned a transport
+        $host = ini_get('SMTP');
+        $port = (int) ini_get('smtp_port');
+
+        if (!$host || !$port) {
+            throw new TransportException('smtp or smtp_port is not configured in php.ini.');
+        }
+
+        $socketStream = new SocketStream();
+        $socketStream->setHost($host);
+        $socketStream->setPort($port);
+        if (465 !== $port) {
+            $socketStream->disableTls();
+        }
+
+        return new SmtpTransport($socketStream, $this->dispatcher, $this->logger);
+    }
+
+    protected function getSupportedSchemes(): array
+    {
+        return ['native'];
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/NullTransport.php

@@ -0,0 +1,31 @@
+<?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 Symfony\Component\Mailer\SentMessage;
+
+/**
+ * Pretends messages have been sent, but just ignores them.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+final class NullTransport extends AbstractTransport
+{
+    protected function doSend(SentMessage $message): void
+    {
+    }
+
+    public function __toString(): string
+    {
+        return 'null://';
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/NullTransportFactory.php

@@ -0,0 +1,34 @@
+<?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 Symfony\Component\Mailer\Exception\UnsupportedSchemeException;
+
+/**
+ * @author Konstantin Myakshin <molodchick@gmail.com>
+ */
+final class NullTransportFactory extends AbstractTransportFactory
+{
+    public function create(Dsn $dsn): TransportInterface
+    {
+        if ('null' === $dsn->getScheme()) {
+            return new NullTransport($this->dispatcher, $this->logger);
+        }
+
+        throw new UnsupportedSchemeException($dsn, 'null', $this->getSupportedSchemes());
+    }
+
+    protected function getSupportedSchemes(): array
+    {
+        return ['null'];
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/RoundRobinTransport.php

@@ -0,0 +1,125 @@
+<?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 Symfony\Component\Mailer\Envelope;
+use Symfony\Component\Mailer\Exception\TransportException;
+use Symfony\Component\Mailer\Exception\TransportExceptionInterface;
+use Symfony\Component\Mailer\SentMessage;
+use Symfony\Component\Mime\RawMessage;
+
+/**
+ * Uses several Transports using a round robin algorithm.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class RoundRobinTransport implements TransportInterface
+{
+    /**
+     * @var \SplObjectStorage<TransportInterface, float>
+     */
+    private \SplObjectStorage $deadTransports;
+    private array $transports = [];
+    private int $retryPeriod;
+    private int $cursor = -1;
+
+    /**
+     * @param TransportInterface[] $transports
+     */
+    public function __construct(array $transports, int $retryPeriod = 60)
+    {
+        if (!$transports) {
+            throw new TransportException(sprintf('"%s" must have at least one transport configured.', static::class));
+        }
+
+        $this->transports = $transports;
+        $this->deadTransports = new \SplObjectStorage();
+        $this->retryPeriod = $retryPeriod;
+    }
+
+    public function send(RawMessage $message, ?Envelope $envelope = null): ?SentMessage
+    {
+        $exception = null;
+
+        while ($transport = $this->getNextTransport()) {
+            try {
+                return $transport->send($message, $envelope);
+            } catch (TransportExceptionInterface $e) {
+                $exception ??= new TransportException('All transports failed.');
+                $exception->appendDebug(sprintf("Transport \"%s\": %s\n", $transport, $e->getDebug()));
+                $this->deadTransports[$transport] = microtime(true);
+            }
+        }
+
+        throw $exception ?? new TransportException('No transports found.');
+    }
+
+    public function __toString(): string
+    {
+        return $this->getNameSymbol().'('.implode(' ', array_map('strval', $this->transports)).')';
+    }
+
+    /**
+     * Rotates the transport list around and returns the first instance.
+     */
+    protected function getNextTransport(): ?TransportInterface
+    {
+        if (-1 === $this->cursor) {
+            $this->cursor = $this->getInitialCursor();
+        }
+
+        $cursor = $this->cursor;
+        while (true) {
+            $transport = $this->transports[$cursor];
+
+            if (!$this->isTransportDead($transport)) {
+                break;
+            }
+
+            if ((microtime(true) - $this->deadTransports[$transport]) > $this->retryPeriod) {
+                $this->deadTransports->detach($transport);
+
+                break;
+            }
+
+            if ($this->cursor === $cursor = $this->moveCursor($cursor)) {
+                return null;
+            }
+        }
+
+        $this->cursor = $this->moveCursor($cursor);
+
+        return $transport;
+    }
+
+    protected function isTransportDead(TransportInterface $transport): bool
+    {
+        return $this->deadTransports->contains($transport);
+    }
+
+    protected function getInitialCursor(): int
+    {
+        // the cursor initial value is randomized so that
+        // when are not in a daemon, we are still rotating the transports
+        return mt_rand(0, \count($this->transports) - 1);
+    }
+
+    protected function getNameSymbol(): string
+    {
+        return 'roundrobin';
+    }
+
+    private function moveCursor(int $cursor): int
+    {
+        return ++$cursor >= \count($this->transports) ? 0 : $cursor;
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/SendmailTransport.php

@@ -0,0 +1,123 @@
+<?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 ProcessStream $stream;
+    private ?SmtpTransport $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__));
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/SendmailTransportFactory.php

@@ -0,0 +1,34 @@
+<?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 Symfony\Component\Mailer\Exception\UnsupportedSchemeException;
+
+/**
+ * @author Konstantin Myakshin <molodchick@gmail.com>
+ */
+final class SendmailTransportFactory extends AbstractTransportFactory
+{
+    public function create(Dsn $dsn): TransportInterface
+    {
+        if ('sendmail+smtp' === $dsn->getScheme() || 'sendmail' === $dsn->getScheme()) {
+            return new SendmailTransport($dsn->getOption('command'), $this->dispatcher, $this->logger);
+        }
+
+        throw new UnsupportedSchemeException($dsn, 'sendmail', $this->getSupportedSchemes());
+    }
+
+    protected function getSupportedSchemes(): array
+    {
+        return ['sendmail', 'sendmail+smtp'];
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/Smtp/Auth/AuthenticatorInterface.php

@@ -0,0 +1,35 @@
+<?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\Smtp\Auth;
+
+use Symfony\Component\Mailer\Exception\TransportExceptionInterface;
+use Symfony\Component\Mailer\Transport\Smtp\EsmtpTransport;
+
+/**
+ * An Authentication mechanism.
+ *
+ * @author Chris Corbyn
+ */
+interface AuthenticatorInterface
+{
+    /**
+     * Tries to authenticate the user.
+     *
+     * @throws TransportExceptionInterface
+     */
+    public function authenticate(EsmtpTransport $client): void;
+
+    /**
+     * Gets the name of the AUTH mechanism this Authenticator handles.
+     */
+    public function getAuthKeyword(): string;
+}

docker/streamline-src/vendor/symfony/mailer/Transport/Smtp/Auth/CramMd5Authenticator.php

@@ -0,0 +1,65 @@
+<?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\Smtp\Auth;
+
+use Symfony\Component\Mailer\Exception\InvalidArgumentException;
+use Symfony\Component\Mailer\Transport\Smtp\EsmtpTransport;
+
+/**
+ * Handles CRAM-MD5 authentication.
+ *
+ * @author Chris Corbyn
+ */
+class CramMd5Authenticator implements AuthenticatorInterface
+{
+    public function getAuthKeyword(): string
+    {
+        return 'CRAM-MD5';
+    }
+
+    /**
+     * @see https://www.ietf.org/rfc/rfc4954.txt
+     */
+    public function authenticate(EsmtpTransport $client): void
+    {
+        $challenge = $client->executeCommand("AUTH CRAM-MD5\r\n", [334]);
+        $challenge = base64_decode(substr($challenge, 4));
+        $message = base64_encode($client->getUsername().' '.$this->getResponse($client->getPassword(), $challenge));
+        $client->executeCommand(sprintf("%s\r\n", $message), [235]);
+    }
+
+    /**
+     * Generates a CRAM-MD5 response from a server challenge.
+     */
+    private function getResponse(#[\SensitiveParameter] string $secret, string $challenge): string
+    {
+        if (!$secret) {
+            throw new InvalidArgumentException('A non-empty secret is required.');
+        }
+
+        if (\strlen($secret) > 64) {
+            $secret = pack('H32', md5($secret));
+        }
+
+        if (\strlen($secret) < 64) {
+            $secret = str_pad($secret, 64, \chr(0));
+        }
+
+        $kipad = substr($secret, 0, 64) ^ str_repeat(\chr(0x36), 64);
+        $kopad = substr($secret, 0, 64) ^ str_repeat(\chr(0x5C), 64);
+
+        $inner = pack('H32', md5($kipad.$challenge));
+        $digest = md5($kopad.$inner);
+
+        return $digest;
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/Smtp/Auth/LoginAuthenticator.php

@@ -0,0 +1,37 @@
+<?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\Smtp\Auth;
+
+use Symfony\Component\Mailer\Transport\Smtp\EsmtpTransport;
+
+/**
+ * Handles LOGIN authentication.
+ *
+ * @author Chris Corbyn
+ */
+class LoginAuthenticator implements AuthenticatorInterface
+{
+    public function getAuthKeyword(): string
+    {
+        return 'LOGIN';
+    }
+
+    /**
+     * @see https://www.ietf.org/rfc/rfc4954.txt
+     */
+    public function authenticate(EsmtpTransport $client): void
+    {
+        $client->executeCommand("AUTH LOGIN\r\n", [334]);
+        $client->executeCommand(sprintf("%s\r\n", base64_encode($client->getUsername())), [334]);
+        $client->executeCommand(sprintf("%s\r\n", base64_encode($client->getPassword())), [235]);
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/Smtp/Auth/PlainAuthenticator.php

@@ -0,0 +1,35 @@
+<?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\Smtp\Auth;
+
+use Symfony\Component\Mailer\Transport\Smtp\EsmtpTransport;
+
+/**
+ * Handles PLAIN authentication.
+ *
+ * @author Chris Corbyn
+ */
+class PlainAuthenticator implements AuthenticatorInterface
+{
+    public function getAuthKeyword(): string
+    {
+        return 'PLAIN';
+    }
+
+    /**
+     * @see https://www.ietf.org/rfc/rfc4954.txt
+     */
+    public function authenticate(EsmtpTransport $client): void
+    {
+        $client->executeCommand(sprintf("AUTH PLAIN %s\r\n", base64_encode($client->getUsername().\chr(0).$client->getUsername().\chr(0).$client->getPassword())), [235]);
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/Smtp/Auth/XOAuth2Authenticator.php

@@ -0,0 +1,37 @@
+<?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\Smtp\Auth;
+
+use Symfony\Component\Mailer\Transport\Smtp\EsmtpTransport;
+
+/**
+ * Handles XOAUTH2 authentication.
+ *
+ * @author xu.li<AthenaLightenedMyPath@gmail.com>
+ *
+ * @see https://developers.google.com/google-apps/gmail/xoauth2_protocol
+ */
+class XOAuth2Authenticator implements AuthenticatorInterface
+{
+    public function getAuthKeyword(): string
+    {
+        return 'XOAUTH2';
+    }
+
+    /**
+     * @see https://developers.google.com/google-apps/gmail/xoauth2_protocol#the_sasl_xoauth2_mechanism
+     */
+    public function authenticate(EsmtpTransport $client): void
+    {
+        $client->executeCommand('AUTH XOAUTH2 '.base64_encode('user='.$client->getUsername()."\1auth=Bearer ".$client->getPassword()."\1\1")."\r\n", [235]);
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/Smtp/EsmtpTransport.php

@@ -0,0 +1,228 @@
+<?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\Smtp;
+
+use Psr\EventDispatcher\EventDispatcherInterface;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Mailer\Exception\TransportException;
+use Symfony\Component\Mailer\Exception\TransportExceptionInterface;
+use Symfony\Component\Mailer\Exception\UnexpectedResponseException;
+use Symfony\Component\Mailer\Transport\Smtp\Auth\AuthenticatorInterface;
+use Symfony\Component\Mailer\Transport\Smtp\Stream\AbstractStream;
+use Symfony\Component\Mailer\Transport\Smtp\Stream\SocketStream;
+
+/**
+ * Sends Emails over SMTP with ESMTP support.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Chris Corbyn
+ */
+class EsmtpTransport extends SmtpTransport
+{
+    private array $authenticators = [];
+    private string $username = '';
+    private string $password = '';
+    private array $capabilities;
+
+    public function __construct(string $host = 'localhost', int $port = 0, ?bool $tls = null, ?EventDispatcherInterface $dispatcher = null, ?LoggerInterface $logger = null, ?AbstractStream $stream = null, ?array $authenticators = null)
+    {
+        parent::__construct($stream, $dispatcher, $logger);
+
+        if (null === $authenticators) {
+            // fallback to default authenticators
+            // order is important here (roughly most secure and popular first)
+            $authenticators = [
+                new Auth\CramMd5Authenticator(),
+                new Auth\LoginAuthenticator(),
+                new Auth\PlainAuthenticator(),
+                new Auth\XOAuth2Authenticator(),
+            ];
+        }
+        $this->setAuthenticators($authenticators);
+
+        /** @var SocketStream $stream */
+        $stream = $this->getStream();
+
+        if (null === $tls) {
+            if (465 === $port) {
+                $tls = true;
+            } else {
+                $tls = \defined('OPENSSL_VERSION_NUMBER') && 0 === $port && 'localhost' !== $host;
+            }
+        }
+        if (!$tls) {
+            $stream->disableTls();
+        }
+        if (0 === $port) {
+            $port = $tls ? 465 : 25;
+        }
+
+        $stream->setHost($host);
+        $stream->setPort($port);
+    }
+
+    /**
+     * @return $this
+     */
+    public function setUsername(string $username): static
+    {
+        $this->username = $username;
+
+        return $this;
+    }
+
+    public function getUsername(): string
+    {
+        return $this->username;
+    }
+
+    /**
+     * @return $this
+     */
+    public function setPassword(#[\SensitiveParameter] string $password): static
+    {
+        $this->password = $password;
+
+        return $this;
+    }
+
+    public function getPassword(): string
+    {
+        return $this->password;
+    }
+
+    public function setAuthenticators(array $authenticators): void
+    {
+        $this->authenticators = [];
+        foreach ($authenticators as $authenticator) {
+            $this->addAuthenticator($authenticator);
+        }
+    }
+
+    public function addAuthenticator(AuthenticatorInterface $authenticator): void
+    {
+        $this->authenticators[] = $authenticator;
+    }
+
+    public function executeCommand(string $command, array $codes): string
+    {
+        return [250] === $codes && str_starts_with($command, 'HELO ') ? $this->doEhloCommand() : parent::executeCommand($command, $codes);
+    }
+
+    final protected function getCapabilities(): array
+    {
+        return $this->capabilities;
+    }
+
+    private function doEhloCommand(): string
+    {
+        try {
+            $response = $this->executeCommand(sprintf("EHLO %s\r\n", $this->getLocalDomain()), [250]);
+        } catch (TransportExceptionInterface $e) {
+            try {
+                return parent::executeCommand(sprintf("HELO %s\r\n", $this->getLocalDomain()), [250]);
+            } catch (TransportExceptionInterface $ex) {
+                if (!$ex->getCode()) {
+                    throw $e;
+                }
+
+                throw $ex;
+            }
+        }
+
+        $this->capabilities = $this->parseCapabilities($response);
+
+        /** @var SocketStream $stream */
+        $stream = $this->getStream();
+        // WARNING: !$stream->isTLS() is right, 100% sure :)
+        // if you think that the ! should be removed, read the code again
+        // if doing so "fixes" your issue then it probably means your SMTP server behaves incorrectly or is wrongly configured
+        if (!$stream->isTLS() && \defined('OPENSSL_VERSION_NUMBER') && \array_key_exists('STARTTLS', $this->capabilities)) {
+            $this->executeCommand("STARTTLS\r\n", [220]);
+
+            if (!$stream->startTLS()) {
+                throw new TransportException('Unable to connect with STARTTLS.');
+            }
+
+            $response = $this->executeCommand(sprintf("EHLO %s\r\n", $this->getLocalDomain()), [250]);
+            $this->capabilities = $this->parseCapabilities($response);
+        }
+
+        if (\array_key_exists('AUTH', $this->capabilities)) {
+            $this->handleAuth($this->capabilities['AUTH']);
+        }
+
+        return $response;
+    }
+
+    private function parseCapabilities(string $ehloResponse): array
+    {
+        $capabilities = [];
+        $lines = explode("\r\n", trim($ehloResponse));
+        array_shift($lines);
+        foreach ($lines as $line) {
+            if (preg_match('/^[0-9]{3}[ -]([A-Z0-9-]+)((?:[ =].*)?)$/Di', $line, $matches)) {
+                $value = strtoupper(ltrim($matches[2], ' ='));
+                $capabilities[strtoupper($matches[1])] = $value ? explode(' ', $value) : [];
+            }
+        }
+
+        return $capabilities;
+    }
+
+    private function handleAuth(array $modes): void
+    {
+        if (!$this->username) {
+            return;
+        }
+
+        $code = null;
+        $authNames = [];
+        $errors = [];
+        $modes = array_map('strtolower', $modes);
+        foreach ($this->authenticators as $authenticator) {
+            if (!\in_array(strtolower($authenticator->getAuthKeyword()), $modes, true)) {
+                continue;
+            }
+
+            $code = null;
+            $authNames[] = $authenticator->getAuthKeyword();
+            try {
+                $authenticator->authenticate($this);
+
+                return;
+            } catch (UnexpectedResponseException $e) {
+                $code = $e->getCode();
+
+                try {
+                    $this->executeCommand("RSET\r\n", [250]);
+                } catch (TransportExceptionInterface) {
+                    // ignore this exception as it probably means that the server error was final
+                }
+
+                // keep the error message, but tries the other authenticators
+                $errors[$authenticator->getAuthKeyword()] = $e->getMessage();
+            }
+        }
+
+        if (!$authNames) {
+            throw new TransportException(sprintf('Failed to find an authenticator supported by the SMTP server, which currently supports: "%s".', implode('", "', $modes)), $code ?: 504);
+        }
+
+        $message = sprintf('Failed to authenticate on SMTP server with username "%s" using the following authenticators: "%s".', $this->username, implode('", "', $authNames));
+        foreach ($errors as $name => $error) {
+            $message .= sprintf(' Authenticator "%s" returned "%s".', $name, $error);
+        }
+
+        throw new TransportException($message, $code ?: 535);
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/Smtp/EsmtpTransportFactory.php

@@ -0,0 +1,78 @@
+<?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\Smtp;
+
+use Symfony\Component\Mailer\Transport\AbstractTransportFactory;
+use Symfony\Component\Mailer\Transport\Dsn;
+use Symfony\Component\Mailer\Transport\Smtp\Stream\SocketStream;
+use Symfony\Component\Mailer\Transport\TransportInterface;
+
+/**
+ * @author Konstantin Myakshin <molodchick@gmail.com>
+ */
+final class EsmtpTransportFactory extends AbstractTransportFactory
+{
+    public function create(Dsn $dsn): TransportInterface
+    {
+        $tls = 'smtps' === $dsn->getScheme() ? true : null;
+        $port = $dsn->getPort(0);
+        $host = $dsn->getHost();
+
+        $transport = new EsmtpTransport($host, $port, $tls, $this->dispatcher, $this->logger);
+
+        /** @var SocketStream $stream */
+        $stream = $transport->getStream();
+        $streamOptions = $stream->getStreamOptions();
+
+        if ('' !== $dsn->getOption('verify_peer') && !filter_var($dsn->getOption('verify_peer', true), \FILTER_VALIDATE_BOOL)) {
+            $streamOptions['ssl']['verify_peer'] = false;
+            $streamOptions['ssl']['verify_peer_name'] = false;
+        }
+
+        if (null !== $peerFingerprint = $dsn->getOption('peer_fingerprint')) {
+            $streamOptions['ssl']['peer_fingerprint'] = $peerFingerprint;
+        }
+
+        $stream->setStreamOptions($streamOptions);
+
+        if ($user = $dsn->getUser()) {
+            $transport->setUsername($user);
+        }
+
+        if ($password = $dsn->getPassword()) {
+            $transport->setPassword($password);
+        }
+
+        if (null !== ($localDomain = $dsn->getOption('local_domain'))) {
+            $transport->setLocalDomain($localDomain);
+        }
+
+        if (null !== ($maxPerSecond = $dsn->getOption('max_per_second'))) {
+            $transport->setMaxPerSecond((float) $maxPerSecond);
+        }
+
+        if (null !== ($restartThreshold = $dsn->getOption('restart_threshold'))) {
+            $transport->setRestartThreshold((int) $restartThreshold, (int) $dsn->getOption('restart_threshold_sleep', 0));
+        }
+
+        if (null !== ($pingThreshold = $dsn->getOption('ping_threshold'))) {
+            $transport->setPingThreshold((int) $pingThreshold);
+        }
+
+        return $transport;
+    }
+
+    protected function getSupportedSchemes(): array
+    {
+        return ['smtp', 'smtps'];
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/Smtp/SmtpTransport.php

@@ -0,0 +1,393 @@
+<?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\Smtp;
+
+use Psr\EventDispatcher\EventDispatcherInterface;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Mailer\Envelope;
+use Symfony\Component\Mailer\Exception\LogicException;
+use Symfony\Component\Mailer\Exception\TransportException;
+use Symfony\Component\Mailer\Exception\TransportExceptionInterface;
+use Symfony\Component\Mailer\Exception\UnexpectedResponseException;
+use Symfony\Component\Mailer\SentMessage;
+use Symfony\Component\Mailer\Transport\AbstractTransport;
+use Symfony\Component\Mailer\Transport\Smtp\Stream\AbstractStream;
+use Symfony\Component\Mailer\Transport\Smtp\Stream\SocketStream;
+use Symfony\Component\Mime\RawMessage;
+
+/**
+ * Sends emails over SMTP.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Chris Corbyn
+ */
+class SmtpTransport extends AbstractTransport
+{
+    private bool $started = false;
+    private int $restartThreshold = 100;
+    private int $restartThresholdSleep = 0;
+    private int $restartCounter = 0;
+    private int $pingThreshold = 100;
+    private float $lastMessageTime = 0;
+    private AbstractStream $stream;
+    private string $mtaResult = '';
+    private string $domain = '[127.0.0.1]';
+
+    public function __construct(?AbstractStream $stream = null, ?EventDispatcherInterface $dispatcher = null, ?LoggerInterface $logger = null)
+    {
+        parent::__construct($dispatcher, $logger);
+
+        $this->stream = $stream ?? new SocketStream();
+    }
+
+    public function getStream(): AbstractStream
+    {
+        return $this->stream;
+    }
+
+    /**
+     * Sets the maximum number of messages to send before re-starting the transport.
+     *
+     * By default, the threshold is set to 100 (and no sleep at restart).
+     *
+     * @param int $threshold The maximum number of messages (0 to disable)
+     * @param int $sleep     The number of seconds to sleep between stopping and re-starting the transport
+     *
+     * @return $this
+     */
+    public function setRestartThreshold(int $threshold, int $sleep = 0): static
+    {
+        $this->restartThreshold = $threshold;
+        $this->restartThresholdSleep = $sleep;
+
+        return $this;
+    }
+
+    /**
+     * Sets the minimum number of seconds required between two messages, before the server is pinged.
+     * If the transport wants to send a message and the time since the last message exceeds the specified threshold,
+     * the transport will ping the server first (NOOP command) to check if the connection is still alive.
+     * Otherwise the message will be sent without pinging the server first.
+     *
+     * Do not set the threshold too low, as the SMTP server may drop the connection if there are too many
+     * non-mail commands (like pinging the server with NOOP).
+     *
+     * By default, the threshold is set to 100 seconds.
+     *
+     * @param int $seconds The minimum number of seconds between two messages required to ping the server
+     *
+     * @return $this
+     */
+    public function setPingThreshold(int $seconds): static
+    {
+        $this->pingThreshold = $seconds;
+
+        return $this;
+    }
+
+    /**
+     * Sets the name of the local domain that will be used in HELO.
+     *
+     * This should be a fully-qualified domain name and should be truly the domain
+     * you're using.
+     *
+     * If your server does not have a domain name, use the IP address. This will
+     * automatically be wrapped in square brackets as described in RFC 5321,
+     * section 4.1.3.
+     *
+     * @return $this
+     */
+    public function setLocalDomain(string $domain): static
+    {
+        if ('' !== $domain && '[' !== $domain[0]) {
+            if (filter_var($domain, \FILTER_VALIDATE_IP, \FILTER_FLAG_IPV4)) {
+                $domain = '['.$domain.']';
+            } elseif (filter_var($domain, \FILTER_VALIDATE_IP, \FILTER_FLAG_IPV6)) {
+                $domain = '[IPv6:'.$domain.']';
+            }
+        }
+
+        $this->domain = $domain;
+
+        return $this;
+    }
+
+    /**
+     * Gets the name of the domain that will be used in HELO.
+     *
+     * If an IP address was specified, this will be returned wrapped in square
+     * brackets as described in RFC 5321, section 4.1.3.
+     */
+    public function getLocalDomain(): string
+    {
+        return $this->domain;
+    }
+
+    public function send(RawMessage $message, ?Envelope $envelope = null): ?SentMessage
+    {
+        try {
+            $message = parent::send($message, $envelope);
+        } catch (TransportExceptionInterface $e) {
+            if ($this->started) {
+                try {
+                    $this->executeCommand("RSET\r\n", [250]);
+                } catch (TransportExceptionInterface) {
+                    // ignore this exception as it probably means that the server error was final
+                }
+            }
+
+            throw $e;
+        }
+
+        if ($this->mtaResult && $messageId = $this->parseMessageId($this->mtaResult)) {
+            $message->setMessageId($messageId);
+        }
+
+        $this->checkRestartThreshold();
+
+        return $message;
+    }
+
+    protected function parseMessageId(string $mtaResult): string
+    {
+        $regexps = [
+            '/250 Ok (?P<id>[0-9a-f-]+)\r?$/mis',
+            '/250 Ok:? queued as (?P<id>[A-Z0-9]+)\r?$/mis',
+        ];
+        $matches = [];
+        foreach ($regexps as $regexp) {
+            if (preg_match($regexp, $mtaResult, $matches)) {
+                return $matches['id'];
+            }
+        }
+
+        return '';
+    }
+
+    public function __toString(): string
+    {
+        if ($this->stream instanceof SocketStream) {
+            $name = sprintf('smtp%s://%s', ($tls = $this->stream->isTLS()) ? 's' : '', $this->stream->getHost());
+            $port = $this->stream->getPort();
+            if (!(25 === $port || ($tls && 465 === $port))) {
+                $name .= ':'.$port;
+            }
+
+            return $name;
+        }
+
+        return 'smtp://sendmail';
+    }
+
+    /**
+     * Runs a command against the stream, expecting the given response codes.
+     *
+     * @param int[] $codes
+     *
+     * @throws TransportException when an invalid response if received
+     */
+    public function executeCommand(string $command, array $codes): string
+    {
+        $this->stream->write($command);
+        $response = $this->getFullResponse();
+        $this->assertResponseCode($response, $codes);
+
+        return $response;
+    }
+
+    protected function doSend(SentMessage $message): void
+    {
+        if (microtime(true) - $this->lastMessageTime > $this->pingThreshold) {
+            $this->ping();
+        }
+
+        if (!$this->started) {
+            $this->start();
+        }
+
+        try {
+            $envelope = $message->getEnvelope();
+            $this->doMailFromCommand($envelope->getSender()->getEncodedAddress());
+            foreach ($envelope->getRecipients() as $recipient) {
+                $this->doRcptToCommand($recipient->getEncodedAddress());
+            }
+
+            $this->executeCommand("DATA\r\n", [354]);
+            try {
+                foreach (AbstractStream::replace("\r\n.", "\r\n..", $message->toIterable()) as $chunk) {
+                    $this->stream->write($chunk, false);
+                }
+                $this->stream->flush();
+            } catch (TransportExceptionInterface $e) {
+                throw $e;
+            } catch (\Exception $e) {
+                $this->stream->terminate();
+                $this->started = false;
+                $this->getLogger()->debug(sprintf('Email transport "%s" stopped', __CLASS__));
+                throw $e;
+            }
+            $this->mtaResult = $this->executeCommand("\r\n.\r\n", [250]);
+            $message->appendDebug($this->stream->getDebug());
+            $this->lastMessageTime = microtime(true);
+        } catch (TransportExceptionInterface $e) {
+            $e->appendDebug($this->stream->getDebug());
+            $this->lastMessageTime = 0;
+            throw $e;
+        }
+    }
+
+    /**
+     * @internal since version 6.1, to be made private in 7.0
+     *
+     * @final since version 6.1, to be made private in 7.0
+     */
+    protected function doHeloCommand(): void
+    {
+        $this->executeCommand(sprintf("HELO %s\r\n", $this->domain), [250]);
+    }
+
+    private function doMailFromCommand(string $address): void
+    {
+        $this->executeCommand(sprintf("MAIL FROM:<%s>\r\n", $address), [250]);
+    }
+
+    private function doRcptToCommand(string $address): void
+    {
+        $this->executeCommand(sprintf("RCPT TO:<%s>\r\n", $address), [250, 251, 252]);
+    }
+
+    public function start(): void
+    {
+        if ($this->started) {
+            return;
+        }
+
+        $this->getLogger()->debug(sprintf('Email transport "%s" starting', __CLASS__));
+
+        $this->stream->initialize();
+        $this->assertResponseCode($this->getFullResponse(), [220]);
+        $this->doHeloCommand();
+        $this->started = true;
+        $this->lastMessageTime = 0;
+
+        $this->getLogger()->debug(sprintf('Email transport "%s" started', __CLASS__));
+    }
+
+    /**
+     * Manually disconnect from the SMTP server.
+     *
+     * In most cases this is not necessary since the disconnect happens automatically on termination.
+     * In cases of long-running scripts, this might however make sense to avoid keeping an open
+     * connection to the SMTP server in between sending emails.
+     */
+    public function stop(): void
+    {
+        if (!$this->started) {
+            return;
+        }
+
+        $this->getLogger()->debug(sprintf('Email transport "%s" stopping', __CLASS__));
+
+        try {
+            $this->executeCommand("QUIT\r\n", [221]);
+        } catch (TransportExceptionInterface) {
+        } finally {
+            $this->stream->terminate();
+            $this->started = false;
+            $this->getLogger()->debug(sprintf('Email transport "%s" stopped', __CLASS__));
+        }
+    }
+
+    private function ping(): void
+    {
+        if (!$this->started) {
+            return;
+        }
+
+        try {
+            $this->executeCommand("NOOP\r\n", [250]);
+        } catch (TransportExceptionInterface) {
+            $this->stop();
+        }
+    }
+
+    /**
+     * @throws TransportException if a response code is incorrect
+     */
+    private function assertResponseCode(string $response, array $codes): void
+    {
+        if (!$codes) {
+            throw new LogicException('You must set the expected response code.');
+        }
+
+        [$code] = sscanf($response, '%3d');
+        $valid = \in_array($code, $codes);
+
+        if (!$valid || !$response) {
+            $codeStr = $code ? sprintf('code "%s"', $code) : 'empty code';
+            $responseStr = $response ? sprintf(', with message "%s"', trim($response)) : '';
+
+            throw new UnexpectedResponseException(sprintf('Expected response code "%s" but got ', implode('/', $codes)).$codeStr.$responseStr.'.', $code ?: 0);
+        }
+    }
+
+    private function getFullResponse(): string
+    {
+        $response = '';
+        do {
+            $line = $this->stream->readLine();
+            $response .= $line;
+        } while ($line && isset($line[3]) && ' ' !== $line[3]);
+
+        return $response;
+    }
+
+    private function checkRestartThreshold(): void
+    {
+        // when using sendmail via non-interactive mode, the transport is never "started"
+        if (!$this->started) {
+            return;
+        }
+
+        ++$this->restartCounter;
+        if ($this->restartCounter < $this->restartThreshold) {
+            return;
+        }
+
+        $this->stop();
+        if (0 < $sleep = $this->restartThresholdSleep) {
+            $this->getLogger()->debug(sprintf('Email transport "%s" sleeps for %d seconds after stopping', __CLASS__, $sleep));
+
+            sleep($sleep);
+        }
+        $this->start();
+        $this->restartCounter = 0;
+    }
+
+    public function __sleep(): array
+    {
+        throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
+    }
+
+    /**
+     * @return void
+     */
+    public function __wakeup()
+    {
+        throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
+    }
+
+    public function __destruct()
+    {
+        $this->stop();
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/Smtp/Stream/AbstractStream.php

@@ -0,0 +1,144 @@
+<?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\Smtp\Stream;
+
+use Symfony\Component\Mailer\Exception\TransportException;
+
+/**
+ * A stream supporting remote sockets and local processes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ * @author Chris Corbyn
+ *
+ * @internal
+ */
+abstract class AbstractStream
+{
+    /** @var resource|null */
+    protected $stream;
+    /** @var resource|null */
+    protected $in;
+    /** @var resource|null */
+    protected $out;
+
+    private string $debug = '';
+
+    public function write(string $bytes, bool $debug = true): void
+    {
+        if ($debug) {
+            foreach (explode("\n", trim($bytes)) as $line) {
+                $this->debug .= sprintf("> %s\n", $line);
+            }
+        }
+
+        $bytesToWrite = \strlen($bytes);
+        $totalBytesWritten = 0;
+        while ($totalBytesWritten < $bytesToWrite) {
+            $bytesWritten = @fwrite($this->in, substr($bytes, $totalBytesWritten));
+            if (false === $bytesWritten || 0 === $bytesWritten) {
+                throw new TransportException('Unable to write bytes on the wire.');
+            }
+
+            $totalBytesWritten += $bytesWritten;
+        }
+    }
+
+    /**
+     * Flushes the contents of the stream (empty it) and set the internal pointer to the beginning.
+     */
+    public function flush(): void
+    {
+        fflush($this->in);
+    }
+
+    /**
+     * Performs any initialization needed.
+     */
+    abstract public function initialize(): void;
+
+    public function terminate(): void
+    {
+        $this->stream = $this->out = $this->in = null;
+    }
+
+    public function readLine(): string
+    {
+        if (feof($this->out)) {
+            return '';
+        }
+
+        $line = @fgets($this->out);
+        if ('' === $line || false === $line) {
+            $metas = stream_get_meta_data($this->out);
+            if ($metas['timed_out']) {
+                throw new TransportException(sprintf('Connection to "%s" timed out.', $this->getReadConnectionDescription()));
+            }
+            if ($metas['eof']) {
+                throw new TransportException(sprintf('Connection to "%s" has been closed unexpectedly.', $this->getReadConnectionDescription()));
+            }
+            if (false === $line) {
+                throw new TransportException(sprintf('Unable to read from connection to "%s": ', $this->getReadConnectionDescription()).error_get_last()['message']);
+            }
+        }
+
+        $this->debug .= sprintf('< %s', $line);
+
+        return $line;
+    }
+
+    public function getDebug(): string
+    {
+        $debug = $this->debug;
+        $this->debug = '';
+
+        return $debug;
+    }
+
+    public static function replace(string $from, string $to, iterable $chunks): \Generator
+    {
+        if ('' === $from) {
+            yield from $chunks;
+
+            return;
+        }
+
+        $carry = '';
+        $fromLen = \strlen($from);
+
+        foreach ($chunks as $chunk) {
+            if ('' === $chunk = $carry.$chunk) {
+                continue;
+            }
+
+            if (str_contains($chunk, $from)) {
+                $chunk = explode($from, $chunk);
+                $carry = array_pop($chunk);
+
+                yield implode($to, $chunk).$to;
+            } else {
+                $carry = $chunk;
+            }
+
+            if (\strlen($carry) > $fromLen) {
+                yield substr($carry, 0, -$fromLen);
+                $carry = substr($carry, -$fromLen);
+            }
+        }
+
+        if ('' !== $carry) {
+            yield $carry;
+        }
+    }
+
+    abstract protected function getReadConnectionDescription(): string;
+}

docker/streamline-src/vendor/symfony/mailer/Transport/Smtp/Stream/ProcessStream.php

@@ -0,0 +1,65 @@
+<?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\Smtp\Stream;
+
+use Symfony\Component\Mailer\Exception\TransportException;
+
+/**
+ * A stream supporting local processes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Chris Corbyn
+ *
+ * @internal
+ */
+final class ProcessStream extends AbstractStream
+{
+    private string $command;
+
+    public function setCommand(string $command): void
+    {
+        $this->command = $command;
+    }
+
+    public function initialize(): void
+    {
+        $descriptorSpec = [
+            0 => ['pipe', 'r'],
+            1 => ['pipe', 'w'],
+            2 => ['pipe', '\\' === \DIRECTORY_SEPARATOR ? 'a' : 'w'],
+        ];
+        $pipes = [];
+        $this->stream = proc_open($this->command, $descriptorSpec, $pipes);
+        stream_set_blocking($pipes[2], false);
+        if ($err = stream_get_contents($pipes[2])) {
+            throw new TransportException('Process could not be started: '.$err);
+        }
+        $this->in = &$pipes[0];
+        $this->out = &$pipes[1];
+    }
+
+    public function terminate(): void
+    {
+        if (null !== $this->stream) {
+            fclose($this->in);
+            fclose($this->out);
+            proc_close($this->stream);
+        }
+
+        parent::terminate();
+    }
+
+    protected function getReadConnectionDescription(): string
+    {
+        return 'process '.$this->command;
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/Smtp/Stream/SocketStream.php

@@ -0,0 +1,193 @@
+<?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\Smtp\Stream;
+
+use Symfony\Component\Mailer\Exception\TransportException;
+
+/**
+ * A stream supporting remote sockets.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Chris Corbyn
+ *
+ * @internal
+ */
+final class SocketStream extends AbstractStream
+{
+    private string $url;
+    private string $host = 'localhost';
+    private int $port = 465;
+    private float $timeout;
+    private bool $tls = true;
+    private ?string $sourceIp = null;
+    private array $streamContextOptions = [];
+
+    /**
+     * @return $this
+     */
+    public function setTimeout(float $timeout): static
+    {
+        $this->timeout = $timeout;
+
+        return $this;
+    }
+
+    public function getTimeout(): float
+    {
+        return $this->timeout ?? (float) \ini_get('default_socket_timeout');
+    }
+
+    /**
+     * Literal IPv6 addresses should be wrapped in square brackets.
+     *
+     * @return $this
+     */
+    public function setHost(string $host): static
+    {
+        $this->host = $host;
+
+        return $this;
+    }
+
+    public function getHost(): string
+    {
+        return $this->host;
+    }
+
+    /**
+     * @return $this
+     */
+    public function setPort(int $port): static
+    {
+        $this->port = $port;
+
+        return $this;
+    }
+
+    public function getPort(): int
+    {
+        return $this->port;
+    }
+
+    /**
+     * Sets the TLS/SSL on the socket (disables STARTTLS).
+     *
+     * @return $this
+     */
+    public function disableTls(): static
+    {
+        $this->tls = false;
+
+        return $this;
+    }
+
+    public function isTLS(): bool
+    {
+        return $this->tls;
+    }
+
+    /**
+     * @return $this
+     */
+    public function setStreamOptions(array $options): static
+    {
+        $this->streamContextOptions = $options;
+
+        return $this;
+    }
+
+    public function getStreamOptions(): array
+    {
+        return $this->streamContextOptions;
+    }
+
+    /**
+     * Sets the source IP.
+     *
+     * IPv6 addresses should be wrapped in square brackets.
+     *
+     * @return $this
+     */
+    public function setSourceIp(string $ip): static
+    {
+        $this->sourceIp = $ip;
+
+        return $this;
+    }
+
+    /**
+     * Returns the IP used to connect to the destination.
+     */
+    public function getSourceIp(): ?string
+    {
+        return $this->sourceIp;
+    }
+
+    public function initialize(): void
+    {
+        $this->url = $this->host.':'.$this->port;
+        if ($this->tls) {
+            $this->url = 'ssl://'.$this->url;
+        }
+        $options = [];
+        if ($this->sourceIp) {
+            $options['socket']['bindto'] = $this->sourceIp.':0';
+        }
+        if ($this->streamContextOptions) {
+            $options = array_merge($options, $this->streamContextOptions);
+        }
+        // do it unconditionally as it will be used by STARTTLS as well if supported
+        $options['ssl']['crypto_method'] ??= \STREAM_CRYPTO_METHOD_TLS_CLIENT | \STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT | \STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT;
+        $streamContext = stream_context_create($options);
+
+        $timeout = $this->getTimeout();
+        set_error_handler(function ($type, $msg) {
+            throw new TransportException(sprintf('Connection could not be established with host "%s": ', $this->url).$msg);
+        });
+        try {
+            $this->stream = stream_socket_client($this->url, $errno, $errstr, $timeout, \STREAM_CLIENT_CONNECT, $streamContext);
+        } finally {
+            restore_error_handler();
+        }
+
+        stream_set_blocking($this->stream, true);
+        stream_set_timeout($this->stream, (int) $timeout, (int) (($timeout - (int) $timeout) * 1000000));
+        $this->in = &$this->stream;
+        $this->out = &$this->stream;
+    }
+
+    public function startTLS(): bool
+    {
+        set_error_handler(function ($type, $msg) {
+            throw new TransportException('Unable to connect with STARTTLS: '.$msg);
+        });
+        try {
+            return stream_socket_enable_crypto($this->stream, true);
+        } finally {
+            restore_error_handler();
+        }
+    }
+
+    public function terminate(): void
+    {
+        if (null !== $this->stream) {
+            fclose($this->stream);
+        }
+
+        parent::terminate();
+    }
+
+    protected function getReadConnectionDescription(): string
+    {
+        return $this->url;
+    }
+}

docker/streamline-src/vendor/symfony/mailer/Transport/TransportFactoryInterface.php

@@ -0,0 +1,29 @@
+<?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 Symfony\Component\Mailer\Exception\IncompleteDsnException;
+use Symfony\Component\Mailer\Exception\UnsupportedSchemeException;
+
+/**
+ * @author Konstantin Myakshin <molodchick@gmail.com>
+ */
+interface TransportFactoryInterface
+{
+    /**
+     * @throws UnsupportedSchemeException
+     * @throws IncompleteDsnException
+     */
+    public function create(Dsn $dsn): TransportInterface;
+
+    public function supports(Dsn $dsn): bool;
+}

docker/streamline-src/vendor/symfony/mailer/Transport/TransportInterface.php

@@ -0,0 +1,33 @@
+<?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 Symfony\Component\Mailer\Envelope;
+use Symfony\Component\Mailer\Exception\TransportExceptionInterface;
+use Symfony\Component\Mailer\SentMessage;
+use Symfony\Component\Mime\RawMessage;
+
+/**
+ * Interface for all mailer transports.
+ *
+ * When sending emails, you should prefer MailerInterface implementations
+ * as they allow asynchronous sending.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface TransportInterface extends \Stringable
+{
+    /**
+     * @throws TransportExceptionInterface
+     */
+    public function send(RawMessage $message, ?Envelope $envelope = null): ?SentMessage;
+}

docker/streamline-src/vendor/symfony/mailer/Transport/Transports.php

@@ -0,0 +1,75 @@
+<?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 Symfony\Component\Mailer\Envelope;
+use Symfony\Component\Mailer\Exception\InvalidArgumentException;
+use Symfony\Component\Mailer\Exception\LogicException;
+use Symfony\Component\Mailer\SentMessage;
+use Symfony\Component\Mime\Message;
+use Symfony\Component\Mime\RawMessage;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+final class Transports implements TransportInterface
+{
+    /**
+     * @var array<string, TransportInterface>
+     */
+    private array $transports = [];
+    private TransportInterface $default;
+
+    /**
+     * @param iterable<string, TransportInterface> $transports
+     */
+    public function __construct(iterable $transports)
+    {
+        foreach ($transports as $name => $transport) {
+            $this->default ??= $transport;
+            $this->transports[$name] = $transport;
+        }
+
+        if (!$this->transports) {
+            throw new LogicException(sprintf('"%s" must have at least one transport configured.', __CLASS__));
+        }
+    }
+
+    public function send(RawMessage $message, ?Envelope $envelope = null): ?SentMessage
+    {
+        /** @var Message $message */
+        if (RawMessage::class === $message::class || !$message->getHeaders()->has('X-Transport')) {
+            return $this->default->send($message, $envelope);
+        }
+
+        $headers = $message->getHeaders();
+        $transport = $headers->get('X-Transport')->getBody();
+        $headers->remove('X-Transport');
+
+        if (!isset($this->transports[$transport])) {
+            throw new InvalidArgumentException(sprintf('The "%s" transport does not exist (available transports: "%s").', $transport, implode('", "', array_keys($this->transports))));
+        }
+
+        try {
+            return $this->transports[$transport]->send($message, $envelope);
+        } catch (\Throwable $e) {
+            $headers->addTextHeader('X-Transport', $transport);
+
+            throw $e;
+        }
+    }
+
+    public function __toString(): string
+    {
+        return '['.implode(',', array_keys($this->transports)).']';
+    }
+}