Server : Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.4.20 System : Linux st2.domain.com 3.10.0-1127.10.1.el7.x86_64 #1 SMP Wed Jun 3 14:28:03 UTC 2020 x86_64 User : apache ( 48) PHP Version : 7.4.20 Disable Function : NONE Directory : /var/www/html/trader/vendor/ratchet/rfc6455/src/Handshake/ |
<?php
namespace Ratchet\RFC6455\Handshake;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\UriInterface;
use GuzzleHttp\Psr7\Request;
class ClientNegotiator {
/**
* @var ResponseVerifier
*/
private $verifier;
/**
* @var \Psr\Http\Message\RequestInterface
*/
private $defaultHeader;
function __construct(PermessageDeflateOptions $perMessageDeflateOptions = null) {
$this->verifier = new ResponseVerifier;
$this->defaultHeader = new Request('GET', '', [
'Connection' => 'Upgrade'
, 'Upgrade' => 'websocket'
, 'Sec-WebSocket-Version' => $this->getVersion()
, 'User-Agent' => "Ratchet"
]);
if ($perMessageDeflateOptions === null) {
$perMessageDeflateOptions = PermessageDeflateOptions::createDisabled();
}
// https://bugs.php.net/bug.php?id=73373
// https://bugs.php.net/bug.php?id=74240 - need >=7.1.4 or >=7.0.18
if ($perMessageDeflateOptions->isEnabled() &&
!PermessageDeflateOptions::permessageDeflateSupported()) {
trigger_error('permessage-deflate is being disabled because it is not support by your PHP version.', E_USER_NOTICE);
$perMessageDeflateOptions = PermessageDeflateOptions::createDisabled();
}
if ($perMessageDeflateOptions->isEnabled() && !function_exists('deflate_add')) {
trigger_error('permessage-deflate is being disabled because you do not have the zlib extension.', E_USER_NOTICE);
$perMessageDeflateOptions = PermessageDeflateOptions::createDisabled();
}
$this->defaultHeader = $perMessageDeflateOptions->addHeaderToRequest($this->defaultHeader);
}
public function generateRequest(UriInterface $uri) {
return $this->defaultHeader->withUri($uri)
->withHeader("Sec-WebSocket-Key", $this->generateKey());
}
public function validateResponse(RequestInterface $request, ResponseInterface $response) {
return $this->verifier->verifyAll($request, $response);
}
public function generateKey() {
$chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwzyz1234567890+/=';
$charRange = strlen($chars) - 1;
$key = '';
for ($i = 0; $i < 16; $i++) {
$key .= $chars[mt_rand(0, $charRange)];
}
return base64_encode($key);
}
public function getVersion() {
return 13;
}
}