public function getServerCertificate()
 {
     if (!$this->_connection) {
         $this->connect();
     }
     $x509Command = new sspmod_janus_OpenSsl_Command_X509();
     $x509Command->execute($this->_connection->getOutput());
     $pem = $x509Command->getOutput();
     return new sspmod_janus_OpenSsl_Certificate($pem);
 }
 public static function createFromCertificateIssuerUrl(sspmod_janus_OpenSsl_Certificate $certificate, sspmod_janus_OpenSsl_Certificate_Chain $chain = null)
 {
     if (!$chain) {
         $chain = new sspmod_janus_OpenSsl_Certificate_Chain();
     }
     $chain->addCertificate($certificate);
     // Self signed?
     if ($certificate->isSelfSigned()) {
         return $chain;
     }
     // Root CA, add it and stop building
     if (isset(self::$s_rootCertificates[$certificate->getIssuerDn()])) {
         $chain->addCertificate(self::$s_rootCertificates[$certificate->getIssuerDn()]);
         return $chain;
     }
     /**
      * Get the certificate for the issuer of this certificate
      */
     $issuerUrls = $certificate->getCertificateAuthorityIssuerUrls();
     if (empty($issuerUrls)) {
         throw new sspmod_janus_OpenSsl_Certificate_Chain_Exception_BuildingFailedIssuerUrlNotFound("Unable to get issuer certificate?");
     }
     foreach ($issuerUrls as $issuerUrl) {
         $issuerCertificate = file_get_contents($issuerUrl);
         if (!$issuerCertificate || trim($issuerCertificate) === "") {
             // @todo Unable to get the issuer certificate... log this somewhere?
             //       For now we silently just use the next issuer url
             continue;
         }
         // Not a PEM certificate? Probably a DER certificate, transform
         if (strpos($issuerCertificate, '-----BEGIN CERTIFICATE-----') === false) {
             $x509Command = new sspmod_janus_OpenSsl_Command_X509();
             $x509Command->setInForm(sspmod_janus_OpenSsl_Command_X509::FORM_DER);
             $x509Command->execute($issuerCertificate)->getOutput();
             $issuerCertificate = $x509Command->getOutput();
         }
         $issuerCertificate = new sspmod_janus_OpenSsl_Certificate($issuerCertificate);
         return self::createFromCertificateIssuerUrl($issuerCertificate, $chain);
     }
     throw new sspmod_janus_OpenSsl_Certificate_Chain_Exception_BuildingFailedIssuerUrlNotFound("Unable to get issuer certificate?");
 }