Examples with CMSSignedDataParser org.bouncycastle.cms.CMSSignedDataParser used on opensource projects

Example 1 with CMSSignedDataParser

use of org.bouncycastle.cms.CMSSignedDataParser in project tika by apache.

the class Pkcs7Parser method parse.

public void parse(InputStream stream, ContentHandler handler, Metadata metadata, ParseContext context) throws IOException, SAXException, TikaException {
    try {
        DigestCalculatorProvider digestCalculatorProvider = new JcaDigestCalculatorProviderBuilder().setProvider("BC").build();
        CMSSignedDataParser parser = new CMSSignedDataParser(digestCalculatorProvider, new CloseShieldInputStream(stream));
        try {
            CMSTypedStream content = parser.getSignedContent();
            if (content == null) {
                throw new TikaException("cannot parse detached pkcs7 signature (no signed data to parse)");
            }
            try (InputStream input = content.getContentStream()) {
                Parser delegate = context.get(Parser.class, EmptyParser.INSTANCE);
                delegate.parse(input, handler, metadata, context);
            }
        } finally {
            parser.close();
        }
    } catch (OperatorCreationException e) {
        throw new TikaException("Unable to create DigestCalculatorProvider", e);
    } catch (CMSException e) {
        throw new TikaException("Unable to parse pkcs7 signed data", e);
    }
}