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<?php |
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/* |
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* ***************************************************************************** |
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* Contributions to this work were made on behalf of the GÉANT project, a |
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* project that has received funding from the European Union’s Framework |
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* Programme 7 under Grant Agreements No. 238875 (GN3) and No. 605243 (GN3plus), |
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* Horizon 2020 research and innovation programme under Grant Agreements No. |
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* 691567 (GN4-1) and No. 731122 (GN4-2). |
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* On behalf of the aforementioned projects, GEANT Association is the sole owner |
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* of the copyright in all material which was developed by a member of the GÉANT |
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* project. GÉANT Vereniging (Association) is registered with the Chamber of |
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* Commerce in Amsterdam with registration number 40535155 and operates in the |
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* UK as a branch of GÉANT Vereniging. |
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* |
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* Registered office: Hoekenrode 3, 1102BR Amsterdam, The Netherlands. |
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* UK branch address: City House, 126-130 Hills Road, Cambridge CB2 1PQ, UK |
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* |
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* License: see the web/copyright.inc.php file in the file structure or |
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* <base_url>/copyright.php after deploying the software |
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*/ |
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namespace core\diag; |
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use \Exception; |
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/** |
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* Test suite to verify that a given NAI realm has NAPTR records according to |
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* consortium-agreed criteria |
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* Can only be used if \config\Diagnostics::RADIUSTESTS is configured. |
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* |
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* @author Stefan Winter <[email protected]> |
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* @author Tomasz Wolniewicz <[email protected]> |
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* @author Maja Gorecka-Wolniewicz <[email protected]> |
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* |
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* @license see LICENSE file in root directory |
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* |
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* @package Developer |
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*/ |
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class RFC6614Tests extends AbstractTest |
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{ |
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/** |
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* dictionary of translatable texts around the certificates we check |
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* |
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* @var array |
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*/ |
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private $TLS_certkeys = []; |
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/** |
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* list of IP addresses which are candidates for dynamic discovery targets |
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* |
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* @var array |
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*/ |
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private $candidateIPs; |
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/** |
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* the hostname which should show up in the certificate when establishing |
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* a connection to the RADIUS/TLS server (hostname is an intermediary result |
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* of the RFC7585 DNS resolution algorithm, in SRV response) |
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* |
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* @var string |
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*/ |
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private $expectedName; |
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/** |
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* associative array holding the server-side cert test results for a given IP (IP is the key) |
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* |
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* @var array |
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*/ |
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public $TLS_CA_checks_result; |
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/** |
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* associative array holding the client-side cert test results for a given IP (IP is the key) |
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* |
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* @var array |
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*/ |
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public $TLS_clients_checks_result; |
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/** |
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* which consortium are we testing against? |
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* |
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* @var string |
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*/ |
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private $consortium; |
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/** |
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* Sets up the instance for testing of a number of candidate IPs |
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* |
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* @param array $listOfIPs candidates to test |
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* @param string $expectedName expected server name to test against |
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* @param string $consortium which consortium to test against |
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*/ |
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public function __construct($listOfIPs, $expectedName, $consortium = "eduroam") |
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{ |
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parent::__construct(); |
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\core\common\Entity::intoThePotatoes(); |
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$this->TLS_certkeys = [ |
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'eduPKI' => _('eduPKI'), |
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'NCU' => _('Nicolaus Copernicus University'), |
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'ACCREDITED' => _('accredited'), |
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'NONACCREDITED' => _('non-accredited'), |
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'CORRECT' => _('correct certificate'), |
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'WRONGPOLICY' => _('certificate with wrong policy OID'), |
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'EXPIRED' => _('expired certificate'), |
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'REVOKED' => _('revoked certificate'), |
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'PASS' => _('pass'), |
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'FAIL' => _('fail'), |
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'non-eduPKI-accredited' => _("eduroam-accredited CA (now only for tests)"), |
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]; |
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$this->TLS_CA_checks_result = []; |
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$this->TLS_clients_checks_result = []; |
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$this->candidateIPs = $listOfIPs; |
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$this->expectedName = $expectedName; |
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switch ($consortium) { |
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case "eduroam": |
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// fall-through intended |
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case "openroaming": |
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$this->consortium = $consortium; |
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break; |
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default: |
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throw new Exception("Certificate checks against unknown consortium identifier requested!"); |
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} |
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\core\common\Entity::outOfThePotatoes(); |
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} |
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/** |
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* run all checks on all candidates |
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* |
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* @return void |
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*/ |
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public function allChecks() |
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{ |
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foreach ($this->candidateIPs as $oneIP) { |
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$this->cApathCheck($oneIP); |
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$this->tlsClientSideCheck($oneIP, '', ''); |
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} |
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} |
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/** |
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* This function executes openssl s_clientends command to check if a server accepts a CA |
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* |
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* @param string $host IP:port |
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* @return int returncode |
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*/ |
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public function cApathCheck(string $host) |
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{ |
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if (!isset($this->TLS_CA_checks_result[$host])) { |
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$this->TLS_CA_checks_result[$host] = []; |
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} |
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$opensslbabble = $this->execOpensslClient($host, '', $this->TLS_CA_checks_result[$host]); |
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$overallRetval = $this->opensslCAResult($host, $opensslbabble); |
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if ($overallRetval == AbstractTest::RETVAL_OK) { |
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$this->checkServerName($host); |
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} |
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return $overallRetval; |
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} |
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/** |
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* checks whether the received servername matches the expected server name |
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* |
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* @param string $host IP:port |
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* @return bool yes or no |
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*/ |
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private function checkServerName($host) |
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{ |
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// it could match CN or sAN:DNS, we don't care which |
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if (isset($this->TLS_CA_checks_result[$host]['certdata']['subject'])) { |
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$this->loggerInstance->debug(4, "Checking expected server name " . $this->expectedName . |
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" against Subject: " . $this->TLS_CA_checks_result[$host]['certdata']['subject']); |
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// we are checking against accidental misconfig, not attacks, so loosely checking against end of string is appropriate |
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if (preg_match("/CN=" . $this->expectedName . "/", $this->TLS_CA_checks_result[$host]['certdata']['subject']) === 1) { |
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return TRUE; |
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} |
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} |
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if (isset($this->TLS_CA_checks_result[$host]['certdata']['extensions']['subjectaltname'])) { |
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$this->loggerInstance->debug(4, "Checking expected server name " . $this->expectedName . " against sANs: "); |
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$this->loggerInstance->debug(4, $this->TLS_CA_checks_result[$host]['certdata']['extensions']['subjectaltname']); |
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$testNames = $this->TLS_CA_checks_result[$host]['certdata']['extensions']['subjectaltname']; |
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if (!is_array($testNames)) { |
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$testNames = [$testNames]; |
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} |
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foreach ($testNames as $oneName) { |
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if (preg_match("/" . $this->expectedName . "/", $oneName) === 1) { |
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return TRUE; |
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} |
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} |
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} |
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$this->loggerInstance->debug(3, "Tried to check expected server name " . $this->expectedName . " but neither CN nor sANs matched."); |
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$this->TLS_CA_checks_result[$host]['cert_oddity'] = RADIUSTests::CERTPROB_DYN_SERVER_NAME_MISMATCH; |
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return FALSE; |
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} |
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/** |
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* This function executes openssl s_client command to check if a server accepts a client certificate |
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* |
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* @param string $host IP:port |
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* @return int returncode |
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*/ |
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public function tlsClientSideCheck(string $host, string $ename, string $realm) |
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{ |
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$res = RADIUSTests::RETVAL_OK; |
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if (!is_array(\config\Diagnostics::RADIUSTESTS['TLS-clientcerts']) || count(\config\Diagnostics::RADIUSTESTS['TLS-clientcerts']) == 0) { |
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return RADIUSTests::RETVAL_SKIPPED; |
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} |
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foreach (\config\Diagnostics::RADIUSTESTS['TLS-clientcerts'] as $type => $tlsclient) { |
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$this->TLS_clients_checks_result[$host]['ca'][$type]['clientcertinfo']['from'] = $type; |
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$this->TLS_clients_checks_result[$host]['ca'][$type]['clientcertinfo']['status'] = $tlsclient['status']; |
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$this->TLS_clients_checks_result[$host]['ca'][$type]['clientcertinfo']['message'] = $this->TLS_certkeys[$tlsclient['status']]; |
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$this->TLS_clients_checks_result[$host]['ca'][$type]['clientcertinfo']['issuer'] = $tlsclient['issuerCA']; |
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foreach ($tlsclient['certificates'] as $k => $cert) { |
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$this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k]['status'] = $cert['status']; |
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$this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k]['message'] = $this->TLS_certkeys[$cert['status']]; |
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$this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k]['expected'] = $cert['expected']; |
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$add = ' -cert ' . ROOT . '/config/cli-certs/' . $cert['public'] . ' -key ' . ROOT . '/config/cli-certs/' . $cert['private']; |
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if (!file_exists(ROOT . '/config/cli-certs/' . $cert['public']) ||!file_exists(ROOT . |
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'/config/cli-certs/' . $cert['private'])) { |
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$this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k]['finalerror'] = 2; |
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continue; |
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} |
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if (!isset($this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k])) { |
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$this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k] = []; |
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} |
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// tls1_3 connections have a problem in strdout/stderr buffering |
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$add .= ' ' . "-no_ssl3 -no_tls1_3"; |
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$opensslbabble = $this->execOpensslClient($host, $add, $this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k]); |
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$res = $this->opensslClientsResult($host, $opensslbabble, $this->TLS_clients_checks_result, $type, $k); |
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if ($cert['expected'] == 'PASS') { |
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if (!$this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k]['connected']) { |
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if (($tlsclient['status'] == 'ACCREDITED') && ($cert['status'] == 'CORRECT')) { |
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$this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k]['returncode'] = RADIUSTests::CERTPROB_NOT_ACCEPTED; |
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$this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k]['finalerror'] = 1; |
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break; |
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} |
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} |
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} else { |
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if ($this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k]['connected']) { |
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$this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k]['returncode'] = RADIUSTests::CERTPROB_WRONGLY_ACCEPTED; |
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} |
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if (isset($this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k]['reason']) && ($this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k]['reason'] == RADIUSTests::CERTPROB_UNKNOWN_CA) && ($tlsclient['status'] == 'ACCREDITED') && ($cert['status'] == 'CORRECT')) { |
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$this->TLS_clients_checks_result[$host]['ca'][$type]['certificate'][$k]['finalerror'] = 1; |
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break; |
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} |
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} |
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} |
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} |
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return $res; |
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} |
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/** |
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255
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* This function executes openssl s_client command |
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256
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* |
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257
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* @param string $host IP address |
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* @param string $consortium which consortium to check against |
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* @param string $arg arguments to add to the openssl command |
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* @param array $testresults by-reference: the testresults array we are writing into |
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* @return array result of openssl s_client ... |
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*/ |
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private function execOpensslClient($host, $arg, &$testresults) |
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{ |
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// we got the IP address either from DNS (guaranteeing well-formedness) |
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// or from filter_var'ed user input. So it is always safe as an argument |
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// but code analysers want this more explicit, so here is this extra |
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// call to escapeshellarg() |
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$escapedHost = escapeshellarg($host); |
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$this->loggerInstance->debug(4, \config\Master::PATHS['openssl'] . " s_client -connect " . $escapedHost . " -CApath " . ROOT . "/config/ca-certs/$this->consortium/ $arg 2>&1\n"); |
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$time_start = microtime(true); |
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$opensslbabble = []; |
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$result = 999; // likely to become zero by openssl; don't want to initialise to zero, could cover up exec failures |
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exec(\config\Master::PATHS['openssl'] . " s_client -connect " . $escapedHost . " -CApath " . ROOT . "/config/ca-certs/$this->consortium/ $arg 2>&1", $opensslbabble, $result); |
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$time_stop = microtime(true); |
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$testresults['time_millisec'] = floor(($time_stop - $time_start) * 1000); |
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$testresults['returncode'] = $result; |
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return $opensslbabble; |
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} |
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/** |
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282
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* This function parses openssl s_client result |
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283
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* |
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284
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* @param string $host IP:port |
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285
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* @param array $opensslbabble openssl command output |
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286
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* @return int return code |
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287
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*/ |
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288
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private function opensslCAResult($host, $opensslbabble) |
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289
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{ |
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290
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if (preg_match('/connect: Connection refused/', implode($opensslbabble))) { |
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291
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$this->TLS_CA_checks_result[$host]['status'] = RADIUSTests::RETVAL_CONNECTION_REFUSED; |
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292
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return RADIUSTests::RETVAL_INVALID; |
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293
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} |
|
294
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|
if (preg_match('/no peer certificate available/', implode($opensslbabble))) { |
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295
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$this->TLS_CA_checks_result[$host]['status'] = RADIUSTests::RETVAL_SERVER_UNFINISHED_COMM; |
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296
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return RADIUSTests::RETVAL_INVALID; |
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297
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} |
|
298
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|
|
/*if (preg_match('/verify error:num=19/', implode($opensslbabble))) { |
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299
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$this->TLS_CA_checks_result[$host]['cert_oddity'] = RADIUSTests::CERTPROB_UNKNOWN_CA; |
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300
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$this->TLS_CA_checks_result[$host]['status'] = RADIUSTests::RETVAL_INVALID; |
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301
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return RADIUSTests::RETVAL_INVALID; |
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302
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}*/ |
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303
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|
if (preg_match('/Verification error: self-signed certificate in certificate chain/', implode($opensslbabble))) { |
|
304
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|
$this->TLS_CA_checks_result[$host]['cert_oddity'] = RADIUSTests::CERTPROB_UNKNOWN_CA; |
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305
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$this->TLS_CA_checks_result[$host]['status'] = RADIUSTests::RETVAL_INVALID; |
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306
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return RADIUSTests::RETVAL_INVALID; |
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307
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} |
|
308
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|
|
if (preg_match('/Cipher is (NONE)/', implode($opensslbabble))) { |
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309
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$this->TLS_CA_checks_result[$host]['status'] = RADIUSTests::RETVAL_SERVER_UNFINISHED_COMM; |
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310
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return RADIUSTests::RETVAL_INVALID; |
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311
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} |
|
312
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|
/*if (preg_match('/verify return:1/', implode($opensslbabble))) {*/ |
|
313
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|
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if (preg_match('/Verification: OK/', implode($opensslbabble))) { |
|
314
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|
|
$this->TLS_CA_checks_result[$host]['status'] = RADIUSTests::RETVAL_OK; |
|
315
|
|
|
$servercertStage1 = implode("\n", $opensslbabble); |
|
316
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|
|
$servercert = preg_replace("/.*(-----BEGIN CERTIFICATE-----.*-----END CERTIFICATE-----\n).*/s", "$1", $servercertStage1); |
|
317
|
|
|
$data = openssl_x509_parse($servercert); |
|
318
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|
|
$this->TLS_CA_checks_result[$host]['certdata']['subject'] = $data['name']; |
|
319
|
|
|
$this->TLS_CA_checks_result[$host]['certdata']['validTo'] = $data['validTo']; |
|
320
|
|
|
$this->TLS_CA_checks_result[$host]['certdata']['issuer'] = $this->getCertificateIssuer($data); |
|
321
|
|
|
if (($altname = $this->getCertificatePropertyField($data, 'subjectAltName'))) { |
|
322
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|
|
$this->TLS_CA_checks_result[$host]['certdata']['extensions']['subjectaltname'] = $altname; |
|
323
|
|
|
} |
|
324
|
|
|
|
|
325
|
|
|
$oids = $this->propertyCheckPolicy($data); |
|
326
|
|
|
if (!empty($oids)) { |
|
327
|
|
|
foreach ($oids as $resultArrayKey => $o) { |
|
328
|
|
|
$this->TLS_CA_checks_result[$host]['certdata']['extensions']['policyoid'][] = " $o ($resultArrayKey)"; |
|
329
|
|
|
} |
|
330
|
|
|
} |
|
331
|
|
|
if (($crl = $this->getCertificatePropertyField($data, 'crlDistributionPoints'))) { |
|
332
|
|
|
$this->TLS_CA_checks_result[$host]['certdata']['extensions']['crlDistributionPoint'] = $crl; |
|
333
|
|
|
} |
|
334
|
|
|
if (($ocsp = $this->getCertificatePropertyField($data, 'authorityInfoAccess'))) { |
|
335
|
|
|
$this->TLS_CA_checks_result[$host]['certdata']['extensions']['authorityInfoAccess'] = $ocsp; |
|
336
|
|
|
} |
|
337
|
|
|
return RADIUSTests::RETVAL_OK; |
|
338
|
|
|
} |
|
339
|
|
|
// we should have been caught somewhere along the way. If we got here, |
|
340
|
|
|
// something seriously unexpected happened. Let's talk about it. |
|
341
|
|
|
return RADIUSTests::RETVAL_INVALID; |
|
342
|
|
|
} |
|
343
|
|
|
|
|
344
|
|
|
/** |
|
345
|
|
|
* This function parses openssl s_client result |
|
346
|
|
|
* |
|
347
|
|
|
* @param string $host IP:port |
|
348
|
|
|
* @param array $opensslbabble openssl command output |
|
349
|
|
|
* @param array $testresults by-reference: pointer to results array we write into |
|
350
|
|
|
* @param string $type type of certificate |
|
351
|
|
|
* @param int $resultArrayKey results array key |
|
352
|
|
|
* @return int return code |
|
353
|
|
|
*/ |
|
354
|
|
|
private function opensslClientsResult($host, $opensslbabble, &$testresults, $type = '', $resultArrayKey = 0) |
|
355
|
|
|
{ |
|
356
|
|
|
\core\common\Entity::intoThePotatoes(); |
|
357
|
|
|
$res = RADIUSTests::RETVAL_OK; |
|
358
|
|
|
$ret = $testresults[$host]['ca'][$type]['certificate'][$resultArrayKey]['returncode']; |
|
359
|
|
|
$jsondir = dirname(dirname(dirname(__FILE__)))."/var/json_cache/"; |
|
|
|
|
|
|
360
|
|
|
$output = implode($opensslbabble); |
|
361
|
|
|
if ($ret == 0) { |
|
362
|
|
|
$testresults[$host]['ca'][$type]['certificate'][$resultArrayKey]['connected'] = 1; |
|
363
|
|
|
} else { |
|
364
|
|
|
$testresults[$host]['ca'][$type]['certificate'][$resultArrayKey]['connected'] = 0; |
|
365
|
|
|
if (preg_match('/connect: Connection refused/', $output)) { |
|
366
|
|
|
$testresults[$host]['ca'][$type]['certificate'][$resultArrayKey]['returncode'] = RADIUSTests::RETVAL_CONNECTION_REFUSED; |
|
367
|
|
|
$resComment = _("No TLS connection established: Connection refused"); |
|
368
|
|
|
} elseif (preg_match('/sslv3 alert certificate expired/', $output)) { |
|
369
|
|
|
$resComment = _("certificate expired"); |
|
370
|
|
|
} elseif (preg_match('/sslv3 alert certificate revoked/', $output)) { |
|
371
|
|
|
$resComment = _("certificate was revoked"); |
|
372
|
|
|
} elseif (preg_match('/SSL alert number 46/', $output) && |
|
373
|
|
|
preg_match('/sslv3 alert certificate unknown/', $output)) { |
|
374
|
|
|
$resComment = _("bad policy"); |
|
375
|
|
|
} elseif (preg_match('/tlsv1 alert unknown ca/', $output)) { |
|
376
|
|
|
$resComment = _("unknown authority"); |
|
377
|
|
|
$testresults[$host]['ca'][$type]['certificate'][$resultArrayKey]['reason'] = RADIUSTests::CERTPROB_UNKNOWN_CA; |
|
378
|
|
|
} elseif (preg_match('/unexpected eof while reading/', $output)) { |
|
379
|
|
|
$resComment = _("unexpected eof while reading"); |
|
380
|
|
|
$testresults[$host]['ca'][$type]['certificate'][$resultArrayKey]['reason'] = RADIUSTests::CERTPROB_UNEXPECTED_EOF; |
|
381
|
|
|
} else { |
|
382
|
|
|
$resComment = _("unknown problem"); |
|
383
|
|
|
$testresults[$host]['ca'][$type]['certificate'][$resultArrayKey]['reason'] = RADIUSTests::CERTPROB_UNKNOWN_PROBLEM; |
|
384
|
|
|
} |
|
385
|
|
|
$testresults[$host]['ca'][$type]['certificate'][$resultArrayKey]['resultcomment'] = $resComment; |
|
386
|
|
|
} |
|
387
|
|
|
\core\common\Entity::outOfThePotatoes(); |
|
388
|
|
|
return $res; |
|
389
|
|
|
} |
|
390
|
|
|
|
|
391
|
|
|
/** |
|
392
|
|
|
* This function parses a X.509 cert and returns all certificatePolicies OIDs |
|
393
|
|
|
* |
|
394
|
|
|
* @param array $cert (returned from openssl_x509_parse) |
|
395
|
|
|
* @return array of OIDs |
|
396
|
|
|
*/ |
|
397
|
|
|
private function propertyCheckPolicy($cert) |
|
398
|
|
|
{ |
|
399
|
|
|
$oids = []; |
|
400
|
|
|
if (isset($cert['extensions']['certificatePolicies']) && $cert['extensions']['certificatePolicies']) { |
|
401
|
|
|
foreach (\config\Diagnostics::RADIUSTESTS['TLS-acceptableOIDs'] as $key => $oid) { |
|
402
|
|
|
if (preg_match("/Policy: $oid/", $cert['extensions']['certificatePolicies'])) { |
|
403
|
|
|
$oids[$key] = $oid; |
|
404
|
|
|
} |
|
405
|
|
|
} |
|
406
|
|
|
} |
|
407
|
|
|
return $oids; |
|
408
|
|
|
} |
|
409
|
|
|
|
|
410
|
|
|
/** |
|
411
|
|
|
* This function parses a X.509 cert and returns the value of $field |
|
412
|
|
|
* |
|
413
|
|
|
* @param array $cert (returned from openssl_x509_parse) |
|
414
|
|
|
* @return string value of the issuer field or '' |
|
415
|
|
|
*/ |
|
416
|
|
|
private function getCertificateIssuer($cert) |
|
417
|
|
|
{ |
|
418
|
|
|
$issuer = ''; |
|
419
|
|
|
foreach ($cert['issuer'] as $key => $val) { |
|
420
|
|
|
if (is_array($val)) { |
|
421
|
|
|
foreach ($val as $v) { |
|
422
|
|
|
$issuer .= "/$key=$v"; |
|
423
|
|
|
} |
|
424
|
|
|
} else { |
|
425
|
|
|
$issuer .= "/$key=$val"; |
|
426
|
|
|
} |
|
427
|
|
|
} |
|
428
|
|
|
return $issuer; |
|
429
|
|
|
} |
|
430
|
|
|
|
|
431
|
|
|
/** |
|
432
|
|
|
* This function parses a X.509 cert and returns the value of $field |
|
433
|
|
|
* |
|
434
|
|
|
* @param array $cert (returned from openssl_x509_parse) |
|
435
|
|
|
* @param string $field the field to search for |
|
436
|
|
|
* @return string value of the extension named $field or '' |
|
437
|
|
|
*/ |
|
438
|
|
|
private function getCertificatePropertyField($cert, $field) |
|
439
|
|
|
{ |
|
440
|
|
|
if (isset($cert['extensions'][$field]) && $cert['extensions'][$field]) { |
|
441
|
|
|
return $cert['extensions'][$field]; |
|
442
|
|
|
} |
|
443
|
|
|
return ''; |
|
444
|
|
|
} |
|
445
|
|
|
} |
GEANT /
CAT
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The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g.
excluded_paths: ["lib/*"], you can move it to the dependency path list as follows:For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths