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<?php |
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namespace Jalle19\CertificateParser\Provider; |
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use Jalle19\CertificateParser\Exception\ConnectionTimeoutException; |
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use Jalle19\CertificateParser\Exception\DomainMismatchException; |
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use Jalle19\CertificateParser\Exception\NameResolutionException; |
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use Jalle19\CertificateParser\Exception\CertificateNotFoundException; |
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use Jalle19\CertificateParser\Exception\ConnectionFailedException; |
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/** |
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* Class StreamSocketProvider |
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* @package Jalle19\CertificateParser\Provider |
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*/ |
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class StreamSocketProvider implements ProviderInterface |
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{ |
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const DEFAULT_TIMEOUT_SECONDS = 15; |
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const DEFAULT_PORT = 443; |
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/** |
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* @var string |
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*/ |
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private $hostname; |
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/** |
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* @var int |
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*/ |
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private $port; |
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/** |
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* @var int |
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*/ |
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private $timeout; |
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/** |
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* @var boolean |
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*/ |
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private $verifyPeerName; |
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/** |
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* StreamSocketProvider constructor. |
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* |
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* @param string $hostname |
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* @param int $port (optional) |
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* @param int $timeout (optional) |
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* @param boolean $verifyPeerName (optional) |
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*/ |
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public function __construct( |
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$hostname, |
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$port = self::DEFAULT_PORT, |
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$timeout = self::DEFAULT_TIMEOUT_SECONDS, |
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$verifyPeerName = true |
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) { |
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$this->hostname = $hostname; |
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$this->port = $port; |
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$this->timeout = $timeout; |
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$this->verifyPeerName = $verifyPeerName; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getRawCertificate() |
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{ |
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try { |
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$client = stream_socket_client( |
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$this->getRequestUrl(), |
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$errorNumber, |
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$errorDescription, |
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$this->timeout, |
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STREAM_CLIENT_CONNECT, |
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$this->getStreamContext() |
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); |
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$response = stream_context_get_params($client); |
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return $response['options']['ssl']['peer_certificate']; |
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} catch (\Throwable $e) { |
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// Parse the error messages and throw appropriate exceptions if possible |
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$this->handleThrowable($e); |
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throw new ConnectionFailedException($e->getMessage()); |
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} |
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} |
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/** |
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* @return resource |
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*/ |
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private function getStreamContext() |
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{ |
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return stream_context_create([ |
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'ssl' => [ |
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'capture_peer_cert' => true, |
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'verify_peer' => false, |
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'verify_peer_name' => $this->verifyPeerName, |
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], |
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]); |
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} |
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/** |
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* @return string |
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*/ |
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private function getRequestUrl() |
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{ |
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return 'ssl://' . $this->hostname . ':' . $this->port; |
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} |
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/** |
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* @param \Throwable $e |
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* |
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* @throws CertificateNotFoundException |
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* @throws ConnectionTimeoutException |
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* @throws DomainMismatchException |
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* @throws NameResolutionException |
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*/ |
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private function handleThrowable(\Throwable $e) |
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{ |
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$errorMessage = $e->getMessage(); |
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// Check for name resolution errors |
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if (strpos($errorMessage, 'getaddrinfo failed') !== false) { |
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throw new NameResolutionException(); |
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} |
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// Check for unknown SSL protocol (usually means no SSL is configured on the endpoint) |
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if (strpos($errorMessage, 'GET_SERVER_HELLO:unknown protocol') !== false) { |
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throw new CertificateNotFoundException(); |
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} |
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// Check for domain mismatches |
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if (strpos($errorMessage, 'did not match expected') !== false) { |
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throw new DomainMismatchException(); |
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} |
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// Check for connection timeouts |
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if (strpos($errorMessage, 'timed out') !== false) { |
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throw new ConnectionTimeoutException(); |
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} |
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} |
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} |
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Jalle19 /
certificate-parser
