org.bouncycastle.jsse.provider.SSLSessionUtil 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.Constructor;
import java.lang.reflect.Method;

import javax.net.ssl.SSLSession;

import org.bouncycastle.jsse.BCExtendedSSLSession;

abstract class SSLSessionUtil
{
    private static final Class extendedSSLSessionClass;
    private static final Constructor exportSSLSessionConstructor;
    private static final Constructor importSSLSessionConstructor;

    static
    {
        {
            Class clazz = null;
            try
            {
                clazz = ReflectionUtil.getClass("javax.net.ssl.ExtendedSSLSession");
            }
            catch (Exception e)
            {
            }
            extendedSSLSessionClass = clazz;
        }

        {
            Constructor constructor = null;
            try
            {
                Method[] methods = ReflectionUtil.getMethods("javax.net.ssl.ExtendedSSLSession");
                if (null != methods)
                {
                    String className;
                    if (ReflectionUtil.hasMethod(methods, "getRequestedServerNames"))
                    {
                        className = "org.bouncycastle.jsse.provider.ExportSSLSession_8";
                    }
                    else
                    {
                        className = "org.bouncycastle.jsse.provider.ExportSSLSession_7";
                    }

                    constructor = ReflectionUtil.getDeclaredConstructor(className, BCExtendedSSLSession.class);
                }
            }
            catch (Exception e)
            {
            }

            exportSSLSessionConstructor = constructor;
        }

        {
            Constructor constructor = null;
            if (null != extendedSSLSessionClass)
            {
                try
                {
                    Method[] methods = ReflectionUtil.getMethods("javax.net.ssl.ExtendedSSLSession");
                    if (null != methods)
                    {
                        String className;
                        if (ReflectionUtil.hasMethod(methods, "getRequestedServerNames"))
                        {
                            className = "org.bouncycastle.jsse.provider.ImportSSLSession_8";
                        }
                        else
                        {
                            className = "org.bouncycastle.jsse.provider.ImportSSLSession_7";
                        }

                        constructor = ReflectionUtil.getDeclaredConstructor(className, extendedSSLSessionClass);
                    }
                }
                catch (Exception e)
                {
                }
            }
            importSSLSessionConstructor = constructor;
        }
    }

    static SSLSession exportSSLSession(BCExtendedSSLSession sslSession)
    {
        if (sslSession instanceof ImportSSLSession)
        {
            return ((ImportSSLSession)sslSession).unwrap();
        }

        if (null != exportSSLSessionConstructor)
        {
            try
            {
                return exportSSLSessionConstructor.newInstance(sslSession);
            }
            catch (Exception e)
            {
            }
        }

        return new ExportSSLSession_5(sslSession);
    }

    static BCExtendedSSLSession importSSLSession(SSLSession sslSession)
    {
        if (sslSession instanceof BCExtendedSSLSession)
        {
            return (BCExtendedSSLSession)sslSession;
        }

        if (sslSession instanceof ExportSSLSession)
        {
            return ((ExportSSLSession)sslSession).unwrap();
        }

        if (null != importSSLSessionConstructor && extendedSSLSessionClass.isInstance(sslSession))
        {
            try
            {
                return importSSLSessionConstructor.newInstance(sslSession);
            }
            catch (Exception e)
            {
            }
        }

        return new ImportSSLSession_5(sslSession);
    }
}