no.difi.certvalidator.rule.CriticalExtensionRequiredRule Maven / Gradle / Ivy

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Rule engine for creation of certificate validator.

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package no.difi.certvalidator.rule;

import no.difi.certvalidator.api.CertificateValidationException;
import no.difi.certvalidator.api.FailedValidationException;
import no.difi.certvalidator.api.ValidatorRule;

import java.security.cert.X509Certificate;
import java.util.Arrays;
import java.util.List;
import java.util.Set;


public class CriticalExtensionRequiredRule implements ValidatorRule {

    private List requiredExtensions;

    public CriticalExtensionRequiredRule(String... requiredExtensions) {
        this.requiredExtensions = Arrays.asList(requiredExtensions);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void validate(X509Certificate certificate) throws CertificateValidationException {
        Set oids = certificate.getCriticalExtensionOIDs();

        if(oids == null)
            throw new FailedValidationException("Certificate doesn't contain critical OIDs.");

        for (String oid : requiredExtensions)
            if (!oids.contains(oid))
                throw new FailedValidationException(String.format("Certificate doesn't contain critical OID '%s'.", oid));
    }
 }