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File Name : CurlClientState.php

<?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\Internal;

use Psr\Log\LoggerInterface;
use Symfony\Component\HttpClient\Response\CurlResponse;

/**
 * Internal representation of the cURL client's state.
 *
 * @author Alexander M. Turek <me@derrabus.de>
 *
 * @internal
 */
final class CurlClientState extends ClientState
{
    public ?\CurlMultiHandle $handle;
    public ?\CurlShareHandle $share;
    public bool $performing = false;

/** @var PushedResponse[] */
    public array $pushedResponses = [];
    public DnsCache $dnsCache;
    /** @var float[] */
    public array $pauseExpiries = [];
    public int $execCounter = \PHP_INT_MIN;
    public ?LoggerInterface $logger = null;

public static array $curlVersion;

public function __construct(int $maxHostConnections, int $maxPendingPushes)
    {
        self::$curlVersion ??= curl_version();

$this->handle = curl_multi_init();
        $this->dnsCache = new DnsCache();
        $this->reset();

// Don't enable HTTP/1.1 pipelining: it forces responses to be sent in order
        if (\defined('CURLPIPE_MULTIPLEX')) {
            curl_multi_setopt($this->handle, \CURLMOPT_PIPELINING, \CURLPIPE_MULTIPLEX);
        }
        if (\defined('CURLMOPT_MAX_HOST_CONNECTIONS') && 0 < $maxHostConnections) {
            $maxHostConnections = curl_multi_setopt($this->handle, \CURLMOPT_MAX_HOST_CONNECTIONS, $maxHostConnections) ? 4294967295 : $maxHostConnections;
        }
        if (\defined('CURLMOPT_MAXCONNECTS') && 0 < $maxHostConnections) {
            curl_multi_setopt($this->handle, \CURLMOPT_MAXCONNECTS, $maxHostConnections);
        }

// Skip configuring HTTP/2 push when it's unsupported or buggy, see https://bugs.php.net/77535
        if (0 >= $maxPendingPushes) {
            return;
        }

// HTTP/2 push crashes before curl 7.61
        if (!\defined('CURLMOPT_PUSHFUNCTION') || 0x073D00 > self::$curlVersion['version_number'] || !(\CURL_VERSION_HTTP2 & self::$curlVersion['features'])) {
            return;
        }

// Clone to prevent a circular reference
        $multi = clone $this;
        $multi->handle = null;
        $multi->share = null;
        $multi->pushedResponses = &$this->pushedResponses;
        $multi->logger = &$this->logger;
        $multi->handlesActivity = &$this->handlesActivity;
        $multi->openHandles = &$this->openHandles;

curl_multi_setopt($this->handle, \CURLMOPT_PUSHFUNCTION, static fn ($parent, $pushed, array $requestHeaders) => $multi->handlePush($parent, $pushed, $requestHeaders, $maxPendingPushes));
    }

public function reset(): void
    {
        foreach ($this->pushedResponses as $url => $response) {
            $this->logger?->debug(\sprintf('Unused pushed response: "%s"', $url));
            curl_multi_remove_handle($this->handle, $response->handle);
            curl_close($response->handle);
        }

$this->pushedResponses = [];
        $this->dnsCache->evictions = $this->dnsCache->evictions ?: $this->dnsCache->removals;
        $this->dnsCache->removals = $this->dnsCache->hostnames = [];

$this->share = curl_share_init();

curl_share_setopt($this->share, \CURLSHOPT_SHARE, \CURL_LOCK_DATA_DNS);
        curl_share_setopt($this->share, \CURLSHOPT_SHARE, \CURL_LOCK_DATA_SSL_SESSION);

if (\defined('CURL_LOCK_DATA_CONNECT')) {
            curl_share_setopt($this->share, \CURLSHOPT_SHARE, \CURL_LOCK_DATA_CONNECT);
        }
    }

private function handlePush($parent, $pushed, array $requestHeaders, int $maxPendingPushes): int
    {
        $headers = [];
        $origin = curl_getinfo($parent, \CURLINFO_EFFECTIVE_URL);

foreach ($requestHeaders as $h) {
            if (false !== $i = strpos($h, ':', 1)) {
                $headers[substr($h, 0, $i)][] = substr($h, 1 + $i);
            }
        }

if (!isset($headers[':method']) || !isset($headers[':scheme']) || !isset($headers[':authority']) || !isset($headers[':path'])) {
            $this->logger?->debug(\sprintf('Rejecting pushed response from "%s": pushed headers are invalid', $origin));

return \CURL_PUSH_DENY;
        }

$url = $headers[':scheme'][0].'://'.$headers[':authority'][0];

// curl before 7.65 doesn't validate the pushed ":authority" header,
        // but this is a MUST in the HTTP/2 RFC; let's restrict pushes to the original host,
        // ignoring domains mentioned as alt-name in the certificate for now (same as curl).
        if (!str_starts_with($origin, $url.'/')) {
            $this->logger?->debug(\sprintf('Rejecting pushed response from "%s": server is not authoritative for "%s"', $origin, $url));

return \CURL_PUSH_DENY;
        }

if ($maxPendingPushes <= \count($this->pushedResponses)) {
            $fifoUrl = key($this->pushedResponses);
            unset($this->pushedResponses[$fifoUrl]);
            $this->logger?->debug(\sprintf('Evicting oldest pushed response: "%s"', $fifoUrl));
        }

$url .= $headers[':path'][0];
        $this->logger?->debug(\sprintf('Queueing pushed response: "%s"', $url));

$this->pushedResponses[$url] = new PushedResponse(new CurlResponse($this, $pushed), $headers, $this->openHandles[(int) $parent][1] ?? [], $pushed);

return \CURL_PUSH_OK;
    }
}

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	tecnsujc/tecnsujc	0755	2025-06-12 02:36:26
..	dir	-	tecnsujc/tecnsujc	0755	2025-06-12 02:36:26
AmpBodyV4.php	text/x-php	3.61 KB	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
AmpBodyV5.php	text/x-php	3.86 KB	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
AmpClientStateV4.php	text/x-php	8.24 KB	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
AmpClientStateV5.php	text/x-php	7.95 KB	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
AmpListenerV4.php	text/x-php	5.23 KB	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
AmpListenerV5.php	text/x-php	6.35 KB	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
AmpResolverV4.php	text/x-php	1.51 KB	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
AmpResolverV5.php	text/x-php	1.59 KB	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
Canary.php	text/x-php	735 B	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
ClientState.php	text/x-php	547 B	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
CurlClientState.php	text/x-php	5.43 KB	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
DnsCache.php	text/x-php	695 B	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
HttplugWaitLoop.php	text/x-php	5.39 KB	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
NativeClientState.php	text/x-php	966 B	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24
PushedResponse.php	text/x-php	694 B	tecnsujc/tecnsujc	0644	2025-02-13 11:27:24

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