public static void apply()

in main/src/main/java/org/apache/james/jdkim/DKIMVerifier.java [116:144]

• 27 lines of code
• 7 McCabe index (conditional complexity)

    public static void apply(PublicKeyRecord pkr, SignatureRecord sign) throws PermFailException {
        try {
            if (!pkr.getGranularityPattern().matcher(sign.getIdentityLocalPart())
                    .matches()) {
                throw new PermFailException("inapplicable key identity local="
                        + sign.getIdentityLocalPart() + " Pattern: "
                        + pkr.getGranularityPattern().pattern(), sign.getIdentity().toString());
            }

            if (!pkr.isHashMethodSupported(sign.getHashMethod())) {
                throw new PermFailException("inappropriate hash for a="
                        + sign.getHashKeyType() + "/" + sign.getHashMethod(), sign.getIdentity().toString());
            }
            if (!pkr.isKeyTypeSupported(sign.getHashKeyType())) {
                throw new PermFailException("inappropriate key type for a="
                        + sign.getHashKeyType() + "/" + sign.getHashMethod(), sign.getIdentity().toString());
            }

            if (pkr.isDenySubdomains()) {
                if (!sign.getIdentity().toString().toLowerCase().endsWith(
                        ("@" + sign.getDToken()).toLowerCase())) {
                    throw new PermFailException(
                            "AUID in subdomain of SDID is not allowed by the public key record.", sign.getIdentity().toString());
                }
            }
        } catch (IllegalStateException e) {
            throw new PermFailException("Invalid public key: " + e.getMessage(), sign.getIdentity().toString());
        }
    }