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