org.bouncycastle.jsse.provider.DefaultSSLContextSpi Maven / Gradle / Ivy

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The Bouncy Castle Java APIs for the TLS, including a JSSE provider. The APIs are designed primarily to be used in conjunction with the BC FIPS provider. The APIs may also be used with other providers although if being used in a FIPS context it is the responsibility of the user to ensure that any other providers used are FIPS certified and used appropriately.

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package org.bouncycastle.jsse.provider;

import java.security.KeyManagementException;
import java.security.SecureRandom;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.net.ssl.KeyManager;
import javax.net.ssl.TrustManager;

import org.bouncycastle.tls.crypto.impl.jcajce.JcaTlsCryptoProvider;

class DefaultSSLContextSpi extends ProvSSLContextSpi
{
    private static final Logger LOG = Logger.getLogger(DefaultSSLContextSpi.class.getName());

    private static Exception avoidCapturingException(Exception e)
    {
        // NOTE: Avoid capturing arbitrary exception into static field
        return new KeyManagementException(e.getMessage());
    }

    private static class LazyInstance
    {
        private static final Exception initException;
        private static final DefaultSSLContextSpi instance;

        static
        {
            Exception ex = LazyManagers.initException;
            DefaultSSLContextSpi i = null;

            if (null == ex)
            {
                try
                {
                    i = new DefaultSSLContextSpi(false, new JcaTlsCryptoProvider()); 
                }
                catch (Exception e)
                {
                    LOG.log(Level.WARNING, "Failed to load default SSLContext", e);
                    ex = avoidCapturingException(e);
                }
            }

            initException = ex;
            instance = i;
        }
    }

    private static class LazyManagers
    {
        private static final Exception initException;
        private static final KeyManager[] keyManagers;
        private static final TrustManager[] trustManagers;

        static
        {
            Exception ex = null;
            KeyManager[] kms = null;
            TrustManager[] tms = null;

            try
            {
                tms = ProvSSLContextSpi.getDefaultTrustManagers();
            }
            catch (Exception e)
            {
                LOG.log(Level.WARNING, "Failed to load default trust managers", e);
                ex = e;
            }

            if (null == ex)
            {
                try
                {
                    kms = ProvSSLContextSpi.getDefaultKeyManagers();
                }
                catch (Exception e)
                {
                    LOG.log(Level.WARNING, "Failed to load default key managers", e);
                    ex = e;
                }
            }

            if (null != ex)
            {
                ex = avoidCapturingException(ex);
                kms = null;
                tms = null;
            }

            initException = ex;
            keyManagers = kms;
            trustManagers = tms;
        }
    }

    static ProvSSLContextSpi getDefaultInstance() throws Exception
    {
        if (null != LazyInstance.initException)
        {
            throw LazyInstance.initException;
        }

        return LazyInstance.instance;
    }

    DefaultSSLContextSpi(boolean isInFipsMode, JcaTlsCryptoProvider cryptoProvider) throws KeyManagementException
    {
        super(isInFipsMode, cryptoProvider, null);

        if (null != LazyManagers.initException)
        {
            throw new KeyManagementException("Default key/trust managers unavailable", LazyManagers.initException);
        }

        super.engineInit(LazyManagers.keyManagers, LazyManagers.trustManagers, null);
    }

    @Override
    protected void engineInit(KeyManager[] kms, TrustManager[] tms, SecureRandom sr)
        throws KeyManagementException
    {
        throw new KeyManagementException("Default SSLContext is initialized automatically");
    }
}