Viewing File: /usr/local/cpanel/base/3rdparty/roundcube/vendor/guzzlehttp/guzzle/src/Handler/CurlVersion.php
<?php
namespace GuzzleHttp\Handler;
/**
* @internal
*/
final class CurlVersion
{
private const MIN_VERSION = '7.21.2';
private const TLS_12_VERSION = '7.34.0';
private const TLS_13_VERSION = '7.52.0';
private const CONNECTION_CAP_VERSION = '7.30.0';
// CURLOPT_PIPEWAIT exists since libcurl 7.43.0, and multi handles have
// multiplexed by default since 7.62.0 - but a 7.65.0-7.65.1 regression
// dropped that default, which 7.65.2 restored, so 7.65.2 is the floor at
// which PIPEWAIT is reliably effective.
private const MULTIPLEX_VERSION = '7.65.2';
// libcurl's connection matcher refuses to hand a transfer wanting
// HTTP/1.x a pooled connection that already negotiated HTTP/2 or newer
// from 7.77.0: ConnectionExists() in lib/url.c gained the check between
// the 7.76.0 and 7.77.0 releases. The HTTP/2 branch of the check
// regressed to a debug log in 8.11.0 (curl commit 433d730) and was
// restored in 8.13.0 via the negotiation mask (curl commit db72b8d), so
// 8.11.0 through 8.12.1 are vulnerable again.
private const HTTP_VERSION_REUSE_MATCH_VERSION = '7.77.0';
private const HTTP_VERSION_REUSE_MATCH_REGRESSION = '8.11.0';
private const HTTP_VERSION_REUSE_MATCH_RESTORED = '8.13.0';
// CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE restricts the ALPN offer to h2 only
// since libcurl 8.10.0, and connection reuse matching stopped handing
// lower-version connections to prior-knowledge transfers in 8.14.0; below
// that, a required request could silently be sent over a reused HTTP/1.1
// connection.
private const REQUIRED_MULTIPLEX_VERSION = '8.14.0';
// curl 7.52.0 introduced HTTPS proxy support, advertised by a feature bit
// (a build can meet the version yet lack the feature). Earlier libcurl
// mishandles an https:// proxy: before 7.50.2 it silently downgrades to a
// plaintext HTTP proxy, and 7.50.2 through 7.51 reject it at connect time.
private const HTTPS_PROXY_VERSION = '7.52.0';
private const HANDLER_SHARING_VERSION = '7.35.0';
private const SSL_SESSION_SHARING_VERSION = '8.6.0';
// curl 7.57.0 added share-handle connection caches through
// CURL_LOCK_DATA_CONNECT; older share objects can only hold DNS, TLS
// session, and cookie data, never connections.
private const SHARE_CONNECTION_CACHE_VERSION = '7.57.0';
// curl 7.83.1 added proxy TLS-SRP to the connection-reuse match
// (CVE-2022-27782); the proxy client certificate was matched from 7.52.0,
// so proxy TLS credentials are trusted from 7.83.1 onwards.
private const PROXY_TLS_CREDENTIAL_REUSE_VERSION = '7.83.1';
// curl 8.19.0 fixed proxy tunnel reuse after credential changes
// (CVE-2026-3784), but related proxy credential leak flaws were only
// fixed in 8.20.0, so connection reuse is trusted from 8.20.0 onwards.
private const PROXY_CREDENTIAL_REUSE_VERSION = '8.20.0';
// curl 7.69.0 started comparing SOCKS proxy credentials when matching
// connections for reuse (curl #4835); older libcurl matches a SOCKS proxy
// by type, host, and port only.
private const SOCKS_PROXY_CREDENTIAL_REUSE_VERSION = '7.69.0';
private const PROXY_HEADER_SEPARATION_VERSION = '7.37.0';
/**
* @var array{version: string, features: int}|false|null
*/
private static $versionInfo;
private function __construct()
{
}
public static function supportsCurlHandler(): bool
{
$version = self::getVersion();
return $version !== null && \version_compare($version, self::MIN_VERSION, '>=');
}
public static function supportsTls12(): bool
{
$version = self::getVersion();
return self::supportsSsl()
&& \defined('CURL_SSLVERSION_TLSv1_2')
&& $version !== null
&& \version_compare($version, self::TLS_12_VERSION, '>=');
}
public static function supportsTls13(): bool
{
$version = self::getVersion();
return self::supportsSsl()
&& \defined('CURL_SSLVERSION_TLSv1_3')
&& $version !== null
&& \version_compare($version, self::TLS_13_VERSION, '>=');
}
public static function supportsHttp2(): bool
{
$versionInfo = self::getVersionInfo();
return self::supportsTls12()
&& \defined('CURL_VERSION_HTTP2')
&& $versionInfo !== null
&& 0 !== (\CURL_VERSION_HTTP2 & $versionInfo['features']);
}
public static function supportsMultiplex(): bool
{
$version = self::getVersion();
return \defined('CURLOPT_PIPEWAIT')
&& $version !== null
&& \version_compare($version, self::MULTIPLEX_VERSION, '>=');
}
public static function supportsHttpVersionReuseMatching(): bool
{
$version = self::getVersion();
if ($version === null || \version_compare($version, self::HTTP_VERSION_REUSE_MATCH_VERSION, '<')) {
return false;
}
return \version_compare($version, self::HTTP_VERSION_REUSE_MATCH_REGRESSION, '<')
|| \version_compare($version, self::HTTP_VERSION_REUSE_MATCH_RESTORED, '>=');
}
public static function supportsConnectionCaps(): bool
{
$version = self::getVersion();
return \defined('CURLMOPT_MAX_HOST_CONNECTIONS')
&& \defined('CURLMOPT_MAX_TOTAL_CONNECTIONS')
&& $version !== null
&& \version_compare($version, self::CONNECTION_CAP_VERSION, '>=');
}
public static function ensureConnectionCapsSupported(string $option): void
{
if (self::supportsConnectionCaps()) {
return;
}
throw new \InvalidArgumentException(\sprintf(
'The "%s" option requires PHP cURL support for CURLMOPT_MAX_HOST_CONNECTIONS and CURLMOPT_MAX_TOTAL_CONNECTIONS with libcurl %s or newer.',
$option,
self::CONNECTION_CAP_VERSION
));
}
public static function supportsRequiredMultiplex(): bool
{
$version = self::getVersion();
return \defined('CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE')
&& $version !== null
&& self::supportsHttp2()
&& \version_compare($version, self::REQUIRED_MULTIPLEX_VERSION, '>=');
}
public static function supportsHttpsProxy(): bool
{
$versionInfo = self::getVersionInfo();
// CURL_VERSION_HTTPS_PROXY is not defined on every supported PHP
// version; fall back to the curl.h bit value.
$httpsProxyFeature = \defined('CURL_VERSION_HTTPS_PROXY') ? \CURL_VERSION_HTTPS_PROXY : (1 << 21);
return $versionInfo !== null
&& \version_compare($versionInfo['version'], self::HTTPS_PROXY_VERSION, '>=')
&& 0 !== ($httpsProxyFeature & $versionInfo['features']);
}
public static function supportsNtlm(): bool
{
$versionInfo = self::getVersionInfo();
// CURL_VERSION_NTLM is not defined on every supported PHP version; fall
// back to the curl.h bit value.
$ntlmFeature = \defined('CURL_VERSION_NTLM') ? \CURL_VERSION_NTLM : (1 << 4);
return \defined('CURLAUTH_NTLM')
&& $versionInfo !== null
&& 0 !== ($ntlmFeature & $versionInfo['features']);
}
public static function supportsHandlerSharing(): bool
{
$version = self::getVersion();
return $version !== null && \version_compare($version, self::HANDLER_SHARING_VERSION, '>=');
}
public static function ensureHandlerSharingSupported(): void
{
if (!self::supportsHandlerSharing()) {
throw new \InvalidArgumentException(\sprintf(
'The "transport_sharing" option requires libcurl %s or higher for cURL share handles.',
self::HANDLER_SHARING_VERSION
));
}
}
public static function supportsSslSessionSharing(): bool
{
$version = self::getVersion();
return self::supportsSsl()
&& $version !== null
&& \version_compare($version, self::SSL_SESSION_SHARING_VERSION, '>=');
}
public static function ensureSslSessionSharingSupported(): void
{
if (!self::supportsSslSessionSharing()) {
throw new \InvalidArgumentException(\sprintf(
'The "transport_sharing" option requires libcurl %s or higher with SSL support for SSL session sharing.',
self::SSL_SESSION_SHARING_VERSION
));
}
}
public static function supportsShareConnectionCaches(): bool
{
$version = self::getVersion();
// An undetectable libcurl version is treated as capable so the
// opaque share safeguards fail closed.
return $version === null || \version_compare($version, self::SHARE_CONNECTION_CACHE_VERSION, '>=');
}
public static function supportsProxyTlsCredentialAwareConnectionReuse(): bool
{
$version = self::getVersion();
return $version !== null
&& \version_compare($version, self::PROXY_TLS_CREDENTIAL_REUSE_VERSION, '>=');
}
public static function supportsProxyCredentialAwareConnectionReuse(): bool
{
$version = self::getVersion();
return $version !== null
&& \version_compare($version, self::PROXY_CREDENTIAL_REUSE_VERSION, '>=');
}
public static function supportsSocksProxyCredentialAwareConnectionReuse(): bool
{
$version = self::getVersion();
return $version !== null
&& \version_compare($version, self::SOCKS_PROXY_CREDENTIAL_REUSE_VERSION, '>=');
}
public static function supportsProxyHeaderSeparation(): bool
{
$version = self::getVersion();
return $version !== null
&& \version_compare($version, self::PROXY_HEADER_SEPARATION_VERSION, '>=')
&& \defined('CURLOPT_PROXYHEADER')
&& \defined('CURLOPT_HEADEROPT')
&& \defined('CURLHEADER_SEPARATE');
}
private static function supportsSsl(): bool
{
$versionInfo = self::getVersionInfo();
return \defined('CURL_VERSION_SSL')
&& $versionInfo !== null
&& 0 !== (\CURL_VERSION_SSL & $versionInfo['features']);
}
public static function getVersion(): ?string
{
$versionInfo = self::getVersionInfo();
return $versionInfo === null ? null : $versionInfo['version'];
}
/**
* @return array{version: string, features: int}|null
*/
private static function getVersionInfo(): ?array
{
if (self::$versionInfo === null) {
if (!\function_exists('curl_version')) {
self::$versionInfo = false;
} else {
$versionInfo = \curl_version();
self::$versionInfo = \is_array($versionInfo)
&& isset($versionInfo['version'], $versionInfo['features'])
&& \is_string($versionInfo['version'])
&& \is_int($versionInfo['features'])
? [
'version' => $versionInfo['version'],
'features' => $versionInfo['features'],
]
: false;
}
}
return self::$versionInfo === false ? null : self::$versionInfo;
}
}
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