<?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\HttpClient;
use Psr\Log\LoggerAwareInterface;
use Psr\Log\LoggerAwareTrait;
use Symfony\Component\HttpClient\Exception\InvalidArgumentException;
use Symfony\Component\HttpClient\Exception\TransportException;
use Symfony\Component\HttpClient\Internal\NativeClientState;
use Symfony\Component\HttpClient\Response\NativeResponse;
use Symfony\Component\HttpClient\Response\ResponseStream;
use Symfony\Contracts\HttpClient\HttpClientInterface;
use Symfony\Contracts\HttpClient\ResponseInterface;
use Symfony\Contracts\HttpClient\ResponseStreamInterface;
use Symfony\Contracts\Service\ResetInterface;
/**
* A portable implementation of the HttpClientInterface contracts based on PHP stream wrappers.
*
* PHP stream wrappers are able to fetch response bodies concurrently,
* but each request is opened synchronously.
*
* @author Nicolas Grekas <p@tchwork.com>
*/
final class NativeHttpClient implements HttpClientInterface, LoggerAwareInterface, ResetInterface
{
use HttpClientTrait;
use LoggerAwareTrait;
private $defaultOptions = self::OPTIONS_DEFAULTS;
private static $emptyDefaults = self::OPTIONS_DEFAULTS;
/** @var NativeClientState */
private $multi;
/**
* @param array $defaultOptions Default request's options
* @param int $maxHostConnections The maximum number of connections to open
*
* @see HttpClientInterface::OPTIONS_DEFAULTS for available options
*/
public function __construct(array $defaultOptions = [], int $maxHostConnections = 6)
{
$this->defaultOptions['buffer'] = $this->defaultOptions['buffer'] ?? \Closure::fromCallable([__CLASS__, 'shouldBuffer']);
if ($defaultOptions) {
[, $this->defaultOptions] = self::prepareRequest(null, null, $defaultOptions, $this->defaultOptions);
}
$this->multi = new NativeClientState();
$this->multi->maxHostConnections = 0 < $maxHostConnections ? $maxHostConnections : \PHP_INT_MAX;
}
/**
* @see HttpClientInterface::OPTIONS_DEFAULTS for available options
*
* {@inheritdoc}
*/
public function request(string $method, string $url, array $options = []): ResponseInterface
{
[$url, $options] = self::prepareRequest($method, $url, $options, $this->defaultOptions);
if ($options['bindto']) {
if (file_exists($options['bindto'])) {
throw new TransportException(__CLASS__.' cannot bind to local Unix sockets, use e.g. CurlHttpClient instead.');
}
if (str_starts_with($options['bindto'], 'if!')) {
throw new TransportException(__CLASS__.' cannot bind to network interfaces, use e.g. CurlHttpClient instead.');
}
if (str_starts_with($options['bindto'], 'host!')) {
$options['bindto'] = substr($options['bindto'], 5);
}
}
$hasContentLength = isset($options['normalized_headers']['content-length']);
$hasBody = '' !== $options['body'] || 'POST' === $method || $hasContentLength;
$options['body'] = self::getBodyAsString($options['body']);
if ('chunked' === substr($options['normalized_headers']['transfer-encoding'][0] ?? '', \strlen('Transfer-Encoding: '))) {
unset($options['normalized_headers']['transfer-encoding']);
$options['headers'] = array_merge(...array_values($options['normalized_headers']));
$options['body'] = self::dechunk($options['body']);
}
if ('' === $options['body'] && $hasBody && !$hasContentLength) {
$options['headers'][] = 'Content-Length: 0';
}
if ($hasBody && !isset($options['normalized_headers']['content-type'])) {
$options['headers'][] = 'Content-Type: application/x-www-form-urlencoded';
}
if (\extension_loaded('zlib') && !isset($options['normalized_headers']['accept-encoding'])) {
// gzip is the most widely available algo, no need to deal with deflate
$options['headers'][] = 'Accept-Encoding: gzip';
}
if ($options['peer_fingerprint']) {
if (isset($options['peer_fingerprint']['pin-sha256']) && 1 === \count($options['peer_fingerprint'])) {
throw new TransportException(__CLASS__.' cannot verify "pin-sha256" fingerprints, please provide a "sha256" one.');
}
unset($options['peer_fingerprint']['pin-sha256']);
}
$info = [
'response_headers' => [],
'url' => $url,
'error' => null,
'canceled' => false,
'http_method' => $method,
'http_code' => 0,
'redirect_count' => 0,
'start_time' => 0.0,
'connect_time' => 0.0,
'redirect_time' => 0.0,
'pretransfer_time' => 0.0,
'starttransfer_time' => 0.0,
'total_time' => 0.0,
'namelookup_time' => 0.0,
'size_upload' => 0,
'size_download' => 0,
'size_body' => \strlen($options['body']),
'primary_ip' => '',
'primary_port' => 'http:' === $url['scheme'] ? 80 : 443,
'debug' => \extension_loaded('curl') ? '' : "* Enable the curl extension for better performance\n",
];
if ($onProgress = $options['on_progress']) {
// Memoize the last progress to ease calling the callback periodically when no network transfer happens
$lastProgress = [0, 0];
$maxDuration = 0 < $options['max_duration'] ? $options['max_duration'] : \INF;
$onProgress = static function (...$progress) use ($onProgress, &$lastProgress, &$info, $maxDuration) {
if ($info['total_time'] >= $maxDuration) {
throw new TransportException(sprintf('Max duration was reached for "%s".', implode('', $info['url'])));
}
$progressInfo = $info;
$progressInfo['url'] = implode('', $info['url']);
unset($progressInfo['size_body']);
if ($progress && -1 === $progress[0]) {
// Response completed
$lastProgress[0] = max($lastProgress);
} else {
$lastProgress = $progress ?: $lastProgress;
}
$onProgress($lastProgress[0], $lastProgress[1], $progressInfo);
};
} elseif (0 < $options['max_duration']) {
$maxDuration = $options['max_duration'];
$onProgress = static function () use (&$info, $maxDuration): void {
if ($info['total_time'] >= $maxDuration) {
throw new TransportException(sprintf('Max duration was reached for "%s".', implode('', $info['url'])));
}
};
}
// Always register a notification callback to compute live stats about the response
$notification = static function (int $code, int $severity, ?string $msg, int $msgCode, int $dlNow, int $dlSize) use ($onProgress, &$info) {
$info['total_time'] = microtime(true) - $info['start_time'];
if (\STREAM_NOTIFY_PROGRESS === $code) {
$info['starttransfer_time'] = $info['starttransfer_time'] ?: $info['total_time'];
$info['size_upload'] += $dlNow ? 0 : $info['size_body'];
$info['size_download'] = $dlNow;
} elseif (\STREAM_NOTIFY_CONNECT === $code) {
$info['connect_time'] = $info['total_time'];
$info['debug'] .= $info['request_header'];
unset($info['request_header']);
} else {
return;
}
if ($onProgress) {
$onProgress($dlNow, $dlSize);
}
};
if ($options['resolve']) {
$this->multi->dnsCache = $options['resolve'] + $this->multi->dnsCache;
}
$this->logger && $this->logger->info(sprintf('Request: "%s %s"', $method, implode('', $url)));
if (!isset($options['normalized_headers']['user-agent'])) {
$options['headers'][] = 'User-Agent: Symfony HttpClient/Native';
}
if (0 < $options['max_duration']) {
$options['timeout'] = min($options['max_duration'], $options['timeout']);
}
$bindto = $options['bindto'];
if (!$bindto && (70322 === \PHP_VERSION_ID || 70410 === \PHP_VERSION_ID)) {
$bindto = '0:0';
}
$context = [
'http' => [
'protocol_version' => min($options['http_version'] ?: '1.1', '1.1'),
'method' => $method,
'content' => $options['body'],
'ignore_errors' => true,
'curl_verify_ssl_peer' => $options['verify_peer'],
'curl_verify_ssl_host' => $options['verify_host'],
'auto_decode' => false, // Disable dechunk filter, it's incompatible with stream_select()
'timeout' => $options['timeout'],
'follow_location' => false, // We follow redirects ourselves - the native logic is too limited
],
'ssl' => array_filter([
'verify_peer' => $options['verify_peer'],
'verify_peer_name' => $options['verify_host'],
'cafile' => $options['cafile'],
'capath' => $options['capath'],
'local_cert' => $options['local_cert'],
'local_pk' => $options['local_pk'],
'passphrase' => $options['passphrase'],
'ciphers' => $options['ciphers'],
'peer_fingerprint' => $options['peer_fingerprint'],
'capture_peer_cert_chain' => $options['capture_peer_cert_chain'],
'allow_self_signed' => (bool) $options['peer_fingerprint'],
'SNI_enabled' => true,
'disable_compression' => true,
], static function ($v) { return null !== $v; }),
'socket' => [
'bindto' => $bindto,
'tcp_nodelay' => true,
],
];
$context = stream_context_create($context, ['notification' => $notification]);
$resolver = static function ($multi) use ($context, $options, $url, &$info, $onProgress) {
[$host, $port] = self::parseHostPort($url, $info);
if (!isset($options['normalized_headers']['host'])) {
$options['headers'][] = 'Host: '.$host.$port;
}
$proxy = self::getProxy($options['proxy'], $url, $options['no_proxy']);
if (!self::configureHeadersAndProxy($context, $host, $options['headers'], $proxy, 'https:' === $url['scheme'])) {
$ip = self::dnsResolve($host, $multi, $info, $onProgress);
$url['authority'] = substr_replace($url['authority'], $ip, -\strlen($host) - \strlen($port), \strlen($host));
}
return [self::createRedirectResolver($options, $host, $proxy, $info, $onProgress), implode('', $url)];
};
return new NativeResponse($this->multi, $context, implode('', $url), $options, $info, $resolver, $onProgress, $this->logger);
}
/**
* {@inheritdoc}
*/
public function stream($responses, float $timeout = null): ResponseStreamInterface
{
if ($responses instanceof NativeResponse) {
$responses = [$responses];
} elseif (!is_iterable($responses)) {
throw new \TypeError(sprintf('"%s()" expects parameter 1 to be an iterable of NativeResponse objects, "%s" given.', __METHOD__, get_debug_type($responses)));
}
return new ResponseStream(NativeResponse::stream($responses, $timeout));
}
public function reset()
{
$this->multi->reset();
}
private static function getBodyAsString($body): string
{
if (\is_resource($body)) {
return stream_get_contents($body);
}
if (!$body instanceof \Closure) {
return $body;
}
$result = '';
while ('' !== $data = $body(self::$CHUNK_SIZE)) {
if (!\is_string($data)) {
throw new TransportException(sprintf('Return value of the "body" option callback must be string, "%s" returned.', get_debug_type($data)));
}
$result .= $data;
}
return $result;
}
/**
* Extracts the host and the port from the URL.
*/
private static function parseHostPort(array $url, array &$info): array
{
if ($port = parse_url($url['authority'], \PHP_URL_PORT) ?: '') {
$info['primary_port'] = $port;
$port = ':'.$port;
} else {
$info['primary_port'] = 'http:' === $url['scheme'] ? 80 : 443;
}
return [parse_url($url['authority'], \PHP_URL_HOST), $port];
}
/**
* Resolves the IP of the host using the local DNS cache if possible.
*/
private static function dnsResolve($host, NativeClientState $multi, array &$info, ?\Closure $onProgress): string
{
if (null === $ip = $multi->dnsCache[$host] ?? null) {
$info['debug'] .= "* Hostname was NOT found in DNS cache\n";
$now = microtime(true);
if (!$ip = gethostbynamel($host)) {
throw new TransportException(sprintf('Could not resolve host "%s".', $host));
}
$info['namelookup_time'] = microtime(true) - ($info['start_time'] ?: $now);
$multi->dnsCache[$host] = $ip = $ip[0];
$info['debug'] .= "* Added {$host}:0:{$ip} to DNS cache\n";
} else {
$info['debug'] .= "* Hostname was found in DNS cache\n";
}
$info['primary_ip'] = $ip;
if ($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 $proxy, array &$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, $proxy, &$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'] = '';
$filterContentHeaders = static function ($h) {
return 0 !== stripos($h, 'Content-Length:') && 0 !== stripos($h, 'Content-Type:') && 0 !== stripos($h, 'Transfer-Encoding:');
};
$options['header'] = array_filter($options['header'], $filterContentHeaders);
$redirectHeaders['no_auth'] = array_filter($redirectHeaders['no_auth'], $filterContentHeaders);
$redirectHeaders['with_auth'] = array_filter($redirectHeaders['with_auth'], $filterContentHeaders);
stream_context_set_option($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, '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, bool $isSsl): bool
{
if (null === $proxy) {
stream_context_set_option($context, 'http', 'header', $requestHeaders);
stream_context_set_option($context, 'ssl', 'peer_name', $host);
return false;
}
// Matching "no_proxy" should follow the behavior of curl
foreach ($proxy['no_proxy'] as $rule) {
$dotRule = '.'.ltrim($rule, '.');
if ('*' === $rule || $host === $rule || str_ends_with($host, $dotRule)) {
stream_context_set_option($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;
}
}