472 lines
19 KiB
PHP
472 lines
19 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\HttpClient;
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use Psr\Log\LoggerAwareInterface;
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use Psr\Log\LoggerAwareTrait;
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use Symfony\Component\HttpClient\Exception\InvalidArgumentException;
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use Symfony\Component\HttpClient\Exception\TransportException;
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use Symfony\Component\HttpClient\Internal\NativeClientState;
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use Symfony\Component\HttpClient\Response\NativeResponse;
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use Symfony\Component\HttpClient\Response\ResponseStream;
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use Symfony\Contracts\HttpClient\HttpClientInterface;
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use Symfony\Contracts\HttpClient\ResponseInterface;
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use Symfony\Contracts\HttpClient\ResponseStreamInterface;
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/**
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* A portable implementation of the HttpClientInterface contracts based on PHP stream wrappers.
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*
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* PHP stream wrappers are able to fetch response bodies concurrently,
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* but each request is opened synchronously.
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*
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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final class NativeHttpClient implements HttpClientInterface, LoggerAwareInterface
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{
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use HttpClientTrait;
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use LoggerAwareTrait;
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private $defaultOptions = self::OPTIONS_DEFAULTS;
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/** @var NativeClientState */
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private $multi;
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/**
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* @param array $defaultOptions Default request's options
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* @param int $maxHostConnections The maximum number of connections to open
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*
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* @see HttpClientInterface::OPTIONS_DEFAULTS for available options
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*/
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public function __construct(array $defaultOptions = [], int $maxHostConnections = 6)
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{
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$this->defaultOptions['buffer'] = $this->defaultOptions['buffer'] ?? \Closure::fromCallable([__CLASS__, 'shouldBuffer']);
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if ($defaultOptions) {
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[, $this->defaultOptions] = self::prepareRequest(null, null, $defaultOptions, $this->defaultOptions);
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}
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$this->multi = new NativeClientState();
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$this->multi->maxHostConnections = 0 < $maxHostConnections ? $maxHostConnections : \PHP_INT_MAX;
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}
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/**
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* @see HttpClientInterface::OPTIONS_DEFAULTS for available options
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*
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* {@inheritdoc}
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*/
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public function request(string $method, string $url, array $options = []): ResponseInterface
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{
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[$url, $options] = self::prepareRequest($method, $url, $options, $this->defaultOptions);
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if ($options['bindto'] && file_exists($options['bindto'])) {
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throw new TransportException(__CLASS__.' cannot bind to local Unix sockets, use e.g. CurlHttpClient instead.');
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}
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$options['body'] = self::getBodyAsString($options['body']);
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if ('' !== $options['body'] && 'POST' === $method && !isset($options['normalized_headers']['content-type'])) {
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$options['headers'][] = 'Content-Type: application/x-www-form-urlencoded';
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}
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if (\extension_loaded('zlib') && !isset($options['normalized_headers']['accept-encoding'])) {
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// gzip is the most widely available algo, no need to deal with deflate
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$options['headers'][] = 'Accept-Encoding: gzip';
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}
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if ($options['peer_fingerprint']) {
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if (isset($options['peer_fingerprint']['pin-sha256']) && 1 === \count($options['peer_fingerprint'])) {
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throw new TransportException(__CLASS__.' cannot verify "pin-sha256" fingerprints, please provide a "sha256" one.');
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}
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unset($options['peer_fingerprint']['pin-sha256']);
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}
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$info = [
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'response_headers' => [],
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'url' => $url,
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'error' => null,
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'canceled' => false,
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'http_method' => $method,
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'http_code' => 0,
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'redirect_count' => 0,
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'start_time' => 0.0,
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'connect_time' => 0.0,
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'redirect_time' => 0.0,
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'pretransfer_time' => 0.0,
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'starttransfer_time' => 0.0,
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'total_time' => 0.0,
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'namelookup_time' => 0.0,
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'size_upload' => 0,
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'size_download' => 0,
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'size_body' => \strlen($options['body']),
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'primary_ip' => '',
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'primary_port' => 'http:' === $url['scheme'] ? 80 : 443,
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'debug' => \extension_loaded('curl') ? '' : "* Enable the curl extension for better performance\n",
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];
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if ($onProgress = $options['on_progress']) {
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// Memoize the last progress to ease calling the callback periodically when no network transfer happens
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$lastProgress = [0, 0];
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$maxDuration = 0 < $options['max_duration'] ? $options['max_duration'] : \INF;
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$onProgress = static function (...$progress) use ($onProgress, &$lastProgress, &$info, $maxDuration) {
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if ($info['total_time'] >= $maxDuration) {
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throw new TransportException(sprintf('Max duration was reached for "%s".', implode('', $info['url'])));
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}
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$progressInfo = $info;
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$progressInfo['url'] = implode('', $info['url']);
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unset($progressInfo['size_body']);
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if ($progress && -1 === $progress[0]) {
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// Response completed
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$lastProgress[0] = max($lastProgress);
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} else {
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$lastProgress = $progress ?: $lastProgress;
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}
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$onProgress($lastProgress[0], $lastProgress[1], $progressInfo);
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};
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} elseif (0 < $options['max_duration']) {
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$maxDuration = $options['max_duration'];
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$onProgress = static function () use (&$info, $maxDuration): void {
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if ($info['total_time'] >= $maxDuration) {
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throw new TransportException(sprintf('Max duration was reached for "%s".', implode('', $info['url'])));
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}
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};
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}
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// Always register a notification callback to compute live stats about the response
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$notification = static function (int $code, int $severity, ?string $msg, int $msgCode, int $dlNow, int $dlSize) use ($onProgress, &$info) {
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$info['total_time'] = microtime(true) - $info['start_time'];
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if (\STREAM_NOTIFY_PROGRESS === $code) {
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$info['starttransfer_time'] = $info['starttransfer_time'] ?: $info['total_time'];
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$info['size_upload'] += $dlNow ? 0 : $info['size_body'];
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$info['size_download'] = $dlNow;
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} elseif (\STREAM_NOTIFY_CONNECT === $code) {
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$info['connect_time'] = $info['total_time'];
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$info['debug'] .= $info['request_header'];
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unset($info['request_header']);
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} else {
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return;
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}
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if ($onProgress) {
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$onProgress($dlNow, $dlSize);
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}
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};
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if ($options['resolve']) {
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$this->multi->dnsCache = $options['resolve'] + $this->multi->dnsCache;
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}
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$this->logger && $this->logger->info(sprintf('Request: "%s %s"', $method, implode('', $url)));
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[$host, $port] = self::parseHostPort($url, $info);
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if (!isset($options['normalized_headers']['host'])) {
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$options['headers'][] = 'Host: '.$host.$port;
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}
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if (!isset($options['normalized_headers']['user-agent'])) {
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$options['headers'][] = 'User-Agent: Symfony HttpClient/Native';
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}
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if (0 < $options['max_duration']) {
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$options['timeout'] = min($options['max_duration'], $options['timeout']);
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}
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$context = [
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'http' => [
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'protocol_version' => min($options['http_version'] ?: '1.1', '1.1'),
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'method' => $method,
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'content' => $options['body'],
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'ignore_errors' => true,
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'curl_verify_ssl_peer' => $options['verify_peer'],
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'curl_verify_ssl_host' => $options['verify_host'],
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'auto_decode' => false, // Disable dechunk filter, it's incompatible with stream_select()
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'timeout' => $options['timeout'],
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'follow_location' => false, // We follow redirects ourselves - the native logic is too limited
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],
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'ssl' => array_filter([
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'verify_peer' => $options['verify_peer'],
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'verify_peer_name' => $options['verify_host'],
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'cafile' => $options['cafile'],
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'capath' => $options['capath'],
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'local_cert' => $options['local_cert'],
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'local_pk' => $options['local_pk'],
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'passphrase' => $options['passphrase'],
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'ciphers' => $options['ciphers'],
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'peer_fingerprint' => $options['peer_fingerprint'],
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'capture_peer_cert_chain' => $options['capture_peer_cert_chain'],
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'allow_self_signed' => (bool) $options['peer_fingerprint'],
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'SNI_enabled' => true,
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'disable_compression' => true,
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], static function ($v) { return null !== $v; }),
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'socket' => [
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'bindto' => $options['bindto'] ?: '0:0',
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'tcp_nodelay' => true,
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],
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];
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$proxy = self::getProxy($options['proxy'], $url);
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$noProxy = $options['no_proxy'] ?? $_SERVER['no_proxy'] ?? $_SERVER['NO_PROXY'] ?? '';
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$noProxy = $noProxy ? preg_split('/[\s,]+/', $noProxy) : [];
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$resolveRedirect = self::createRedirectResolver($options, $host, $proxy, $noProxy, $info, $onProgress);
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$context = stream_context_create($context, ['notification' => $notification]);
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if (!self::configureHeadersAndProxy($context, $host, $options['headers'], $proxy, $noProxy, 'https:' === $url['scheme'])) {
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$ip = self::dnsResolve($host, $this->multi, $info, $onProgress);
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$url['authority'] = substr_replace($url['authority'], $ip, -\strlen($host) - \strlen($port), \strlen($host));
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}
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return new NativeResponse($this->multi, $context, implode('', $url), $options, $info, $resolveRedirect, $onProgress, $this->logger);
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}
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/**
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* {@inheritdoc}
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*/
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public function stream($responses, float $timeout = null): ResponseStreamInterface
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{
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if ($responses instanceof NativeResponse) {
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$responses = [$responses];
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} elseif (!is_iterable($responses)) {
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throw new \TypeError(sprintf('"%s()" expects parameter 1 to be an iterable of NativeResponse objects, "%s" given.', __METHOD__, \is_object($responses) ? \get_class($responses) : \gettype($responses)));
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}
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return new ResponseStream(NativeResponse::stream($responses, $timeout));
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}
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private static function getBodyAsString($body): string
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{
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if (\is_resource($body)) {
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return stream_get_contents($body);
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}
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if (!$body instanceof \Closure) {
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return $body;
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}
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$result = '';
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while ('' !== $data = $body(self::$CHUNK_SIZE)) {
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if (!\is_string($data)) {
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throw new TransportException(sprintf('Return value of the "body" option callback must be string, "%s" returned.', \gettype($data)));
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}
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$result .= $data;
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}
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return $result;
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}
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/**
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* Loads proxy configuration from the same environment variables as curl when no proxy is explicitly set.
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*/
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private static function getProxy(?string $proxy, array $url): ?array
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{
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if (null === $proxy) {
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// Ignore HTTP_PROXY except on the CLI to work around httpoxy set of vulnerabilities
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$proxy = $_SERVER['http_proxy'] ?? (\in_array(\PHP_SAPI, ['cli', 'phpdbg'], true) ? $_SERVER['HTTP_PROXY'] ?? null : null) ?? $_SERVER['all_proxy'] ?? $_SERVER['ALL_PROXY'] ?? null;
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if ('https:' === $url['scheme']) {
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$proxy = $_SERVER['https_proxy'] ?? $_SERVER['HTTPS_PROXY'] ?? $proxy;
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}
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}
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if (null === $proxy) {
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return null;
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}
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$proxy = (parse_url($proxy) ?: []) + ['scheme' => 'http'];
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if (!isset($proxy['host'])) {
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throw new TransportException('Invalid HTTP proxy: host is missing.');
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}
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if ('http' === $proxy['scheme']) {
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$proxyUrl = 'tcp://'.$proxy['host'].':'.($proxy['port'] ?? '80');
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} elseif ('https' === $proxy['scheme']) {
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$proxyUrl = 'ssl://'.$proxy['host'].':'.($proxy['port'] ?? '443');
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} else {
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throw new TransportException(sprintf('Unsupported proxy scheme "%s": "http" or "https" expected.', $proxy['scheme']));
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}
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return [
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'url' => $proxyUrl,
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'auth' => isset($proxy['user']) ? 'Basic '.base64_encode(rawurldecode($proxy['user']).':'.rawurldecode($proxy['pass'] ?? '')) : null,
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];
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}
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/**
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* Extracts the host and the port from the URL.
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*/
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private static function parseHostPort(array $url, array &$info): array
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{
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if ($port = parse_url($url['authority'], \PHP_URL_PORT) ?: '') {
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$info['primary_port'] = $port;
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$port = ':'.$port;
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} else {
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$info['primary_port'] = 'http:' === $url['scheme'] ? 80 : 443;
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}
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return [parse_url($url['authority'], \PHP_URL_HOST), $port];
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}
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/**
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* Resolves the IP of the host using the local DNS cache if possible.
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*/
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private static function dnsResolve($host, NativeClientState $multi, array &$info, ?\Closure $onProgress): string
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{
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if (null === $ip = $multi->dnsCache[$host] ?? null) {
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$info['debug'] .= "* Hostname was NOT found in DNS cache\n";
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$now = microtime(true);
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if (!$ip = gethostbynamel($host)) {
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throw new TransportException(sprintf('Could not resolve host "%s".', $host));
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}
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$info['namelookup_time'] = microtime(true) - ($info['start_time'] ?: $now);
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$multi->dnsCache[$host] = $ip = $ip[0];
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$info['debug'] .= "* Added {$host}:0:{$ip} to DNS cache\n";
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} else {
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$info['debug'] .= "* Hostname was found in DNS cache\n";
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}
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$info['primary_ip'] = $ip;
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|
if ($onProgress) {
|
||
|
|
// Notify DNS resolution
|
||
|
|
$onProgress();
|
||
|
|
}
|
||
|
|
|
||
|
|
return $ip;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handles redirects - the native logic is too buggy to be used.
|
||
|
|
*/
|
||
|
|
private static function createRedirectResolver(array $options, string $host, ?array $proxy, array $noProxy, array &$info, ?\Closure $onProgress): \Closure
|
||
|
|
{
|
||
|
|
$redirectHeaders = [];
|
||
|
|
if (0 < $maxRedirects = $options['max_redirects']) {
|
||
|
|
$redirectHeaders = ['host' => $host];
|
||
|
|
$redirectHeaders['with_auth'] = $redirectHeaders['no_auth'] = array_filter($options['headers'], static function ($h) {
|
||
|
|
return 0 !== stripos($h, 'Host:');
|
||
|
|
});
|
||
|
|
|
||
|
|
if (isset($options['normalized_headers']['authorization']) || isset($options['normalized_headers']['cookie'])) {
|
||
|
|
$redirectHeaders['no_auth'] = array_filter($redirectHeaders['no_auth'], static function ($h) {
|
||
|
|
return 0 !== stripos($h, 'Authorization:') && 0 !== stripos($h, 'Cookie:');
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return static function (NativeClientState $multi, ?string $location, $context) use ($redirectHeaders, $proxy, $noProxy, &$info, $maxRedirects, $onProgress): ?string {
|
||
|
|
if (null === $location || $info['http_code'] < 300 || 400 <= $info['http_code']) {
|
||
|
|
$info['redirect_url'] = null;
|
||
|
|
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
try {
|
||
|
|
$url = self::parseUrl($location);
|
||
|
|
} catch (InvalidArgumentException $e) {
|
||
|
|
$info['redirect_url'] = null;
|
||
|
|
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
$url = self::resolveUrl($url, $info['url']);
|
||
|
|
$info['redirect_url'] = implode('', $url);
|
||
|
|
|
||
|
|
if ($info['redirect_count'] >= $maxRedirects) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
$info['url'] = $url;
|
||
|
|
++$info['redirect_count'];
|
||
|
|
$info['redirect_time'] = microtime(true) - $info['start_time'];
|
||
|
|
|
||
|
|
// Do like curl and browsers: turn POST to GET on 301, 302 and 303
|
||
|
|
if (\in_array($info['http_code'], [301, 302, 303], true)) {
|
||
|
|
$options = stream_context_get_options($context)['http'];
|
||
|
|
|
||
|
|
if ('POST' === $options['method'] || 303 === $info['http_code']) {
|
||
|
|
$info['http_method'] = $options['method'] = 'HEAD' === $options['method'] ? 'HEAD' : 'GET';
|
||
|
|
$options['content'] = '';
|
||
|
|
$options['header'] = array_filter($options['header'], static function ($h) {
|
||
|
|
return 0 !== stripos($h, 'Content-Length:') && 0 !== stripos($h, 'Content-Type:');
|
||
|
|
});
|
||
|
|
|
||
|
|
stream_context_set_option($context, ['http' => $options]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
[$host, $port] = self::parseHostPort($url, $info);
|
||
|
|
|
||
|
|
if (false !== (parse_url($location, \PHP_URL_HOST) ?? false)) {
|
||
|
|
// Authorization and Cookie headers MUST NOT follow except for the initial host name
|
||
|
|
$requestHeaders = $redirectHeaders['host'] === $host ? $redirectHeaders['with_auth'] : $redirectHeaders['no_auth'];
|
||
|
|
$requestHeaders[] = 'Host: '.$host.$port;
|
||
|
|
$dnsResolve = !self::configureHeadersAndProxy($context, $host, $requestHeaders, $proxy, $noProxy, 'https:' === $url['scheme']);
|
||
|
|
} else {
|
||
|
|
$dnsResolve = isset(stream_context_get_options($context)['ssl']['peer_name']);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($dnsResolve) {
|
||
|
|
$ip = self::dnsResolve($host, $multi, $info, $onProgress);
|
||
|
|
$url['authority'] = substr_replace($url['authority'], $ip, -\strlen($host) - \strlen($port), \strlen($host));
|
||
|
|
}
|
||
|
|
|
||
|
|
return implode('', $url);
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
private static function configureHeadersAndProxy($context, string $host, array $requestHeaders, ?array $proxy, array $noProxy, bool $isSsl): bool
|
||
|
|
{
|
||
|
|
if (null === $proxy) {
|
||
|
|
stream_context_set_option($context, 'http', 'header', $requestHeaders);
|
||
|
|
stream_context_set_option($context, 'ssl', 'peer_name', $host);
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Matching "no_proxy" should follow the behavior of curl
|
||
|
|
|
||
|
|
foreach ($noProxy as $rule) {
|
||
|
|
$dotRule = '.'.ltrim($rule, '.');
|
||
|
|
|
||
|
|
if ('*' === $rule || $host === $rule || substr($host, -\strlen($dotRule)) === $dotRule) {
|
||
|
|
stream_context_set_option($context, 'http', 'proxy', null);
|
||
|
|
stream_context_set_option($context, 'http', 'request_fulluri', false);
|
||
|
|
stream_context_set_option($context, 'http', 'header', $requestHeaders);
|
||
|
|
stream_context_set_option($context, 'ssl', 'peer_name', $host);
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (null !== $proxy['auth']) {
|
||
|
|
$requestHeaders[] = 'Proxy-Authorization: '.$proxy['auth'];
|
||
|
|
}
|
||
|
|
|
||
|
|
stream_context_set_option($context, 'http', 'proxy', $proxy['url']);
|
||
|
|
stream_context_set_option($context, 'http', 'request_fulluri', !$isSsl);
|
||
|
|
stream_context_set_option($context, 'http', 'header', $requestHeaders);
|
||
|
|
stream_context_set_option($context, 'ssl', 'peer_name', null);
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|