Fiskalizacija - digitalni potpis

gistfile1.php

<?php

public function digitallySignXml($XMLContent, $ReferenceNodeName, $store)
{   
    $cert = Mage::getModel('inchoo_fiskalizacija/cert');
    //$cert->load(Mage::app()->getWebsite()->getId(), 'website_id');
    $cert->load(Mage::getModel('core/store')->load($store)->getWebsiteId(), 'website_id');

    $doc = new DOMDocument();
    $doc->loadXML($XMLContent);

    $objDSig = new XMLSecurityDSig(true);

    $objDSig->setCanonicalMethod(XMLSecurityDSig::EXC_C14N);

    $options['id_name'] = 'Id';
    $options['overwrite'] = false;

    $objDSig->addReference($doc->getElementsByTagName($ReferenceNodeName)->item(0), XMLSecurityDSig::SHA1, array('http://www.w3.org/2000/09/xmldsig#enveloped-signature', 'http://www.w3.org/2001/10/xml-exc-c14n#'), $options);

    $objKey = new XMLSecurityKey(XMLSecurityKey::RSA_SHA1, array('type'=>'private'));
    $objKey->passphrase = $cert->getPemPrivateKeyPassphrase();

    $objKey->loadKey($cert->getPemPrivateKey(), false);

    $objDSig->sign($objKey);

    $objDSig->loadCertData($cert->getPemPublicCert(), false);
    $objDSig->add509Cert($cert->getPemPublicCert());

    $objDSig->insertSignature($doc->getElementsByTagName($ReferenceNodeName)->item(0));
    
    return $doc->saveXML();
}