org.bouncycastle.jsse.provider.SSLEngineUtil 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.lang.reflect.Method;

import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLParameters;
import javax.net.ssl.SSLSession;

import org.bouncycastle.jsse.BCExtendedSSLSession;
import org.bouncycastle.jsse.BCSSLEngine;
import org.bouncycastle.jsse.BCSSLParameters;

abstract class SSLEngineUtil
{
    private static final Method getHandshakeSession;
    private static final Method getSSLParameters;
    private static final boolean useEngine8;

    static
    {
        Method[] methods = ReflectionUtil.getMethods("javax.net.ssl.SSLEngine");

        getHandshakeSession = ReflectionUtil.findMethod(methods, "getHandshakeSession");
        getSSLParameters = ReflectionUtil.findMethod(methods, "getSSLParameters");

        // Note that we only need this for the 8u251 update with ALPN methods
        useEngine8 = ReflectionUtil.hasMethod(methods, "getApplicationProtocol");
    }

    static SSLEngine create(ContextData contextData)
    {
        return useEngine8
            ?   new ProvSSLEngine_8(contextData)
            :   new ProvSSLEngine(contextData);
    }

    static SSLEngine create(ContextData contextData, String host, int port)
    {
        return useEngine8
            ?   new ProvSSLEngine_8(contextData, host, port)
            :   new ProvSSLEngine(contextData, host, port);
    }

    static BCExtendedSSLSession importHandshakeSession(SSLEngine sslEngine)
    {
        if (sslEngine instanceof BCSSLEngine)
        {
            return ((BCSSLEngine)sslEngine).getBCHandshakeSession();
        }
        if (null != sslEngine && null != getHandshakeSession)
        {
            SSLSession sslSession = (SSLSession)ReflectionUtil.invokeGetter(sslEngine, getHandshakeSession);
            if (null != sslSession)
            {
                return SSLSessionUtil.importSSLSession(sslSession);
            }
        }
        return null;
    }

    static BCSSLParameters importSSLParameters(SSLEngine sslEngine)
    {
        if (sslEngine instanceof BCSSLEngine)
        {
            return ((BCSSLEngine)sslEngine).getParameters();
        }
        if (null == sslEngine || null == getSSLParameters)
        {
            return null;
        }

        SSLParameters sslParameters = (SSLParameters)ReflectionUtil.invokeGetter(sslEngine, getSSLParameters);
        if (null == sslParameters)
        {
            throw new RuntimeException("SSLEngine.getSSLParameters returned null");
        }

        return SSLParametersUtil.importSSLParameters(sslParameters);
    }
}