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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright 2014 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

package io.netty.handler.ssl.util;

import io.netty.util.internal.PlatformDependent;
import io.netty.util.internal.SuppressJava6Requirement;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;
import sun.security.x509.AlgorithmId;
import sun.security.x509.CertificateAlgorithmId;
import sun.security.x509.CertificateSerialNumber;
import sun.security.x509.CertificateSubjectName;
import sun.security.x509.CertificateValidity;
import sun.security.x509.CertificateVersion;
import sun.security.x509.CertificateX509Key;
import sun.security.x509.X500Name;
import sun.security.x509.X509CertImpl;
import sun.security.x509.X509CertInfo;

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Date;
import java.math.BigInteger;
import java.security.KeyPair;
import java.security.PrivateKey;
import java.security.SecureRandom;
import java.security.cert.CertificateException;

import static io.netty.handler.ssl.util.SelfSignedCertificate.*;

/**
 * Generates a self-signed certificate using {@code sun.security.x509} package provided by OpenJDK.
 */
final class OpenJdkSelfSignedCertGenerator {
    private static final InternalLogger logger =
            InternalLoggerFactory.getInstance(OpenJdkSelfSignedCertGenerator.class);
    private static final Method CERT_INFO_SET_METHOD;
    private static final Constructor ISSUER_NAME_CONSTRUCTOR;
    private static final Constructor CERT_IMPL_CONSTRUCTOR;
    private static final Method CERT_IMPL_GET_METHOD;
    private static final Method CERT_IMPL_SIGN_METHOD;

    // Use reflection as JDK20+ did change things quite a bit.
    static {
        Method certInfoSetMethod = null;
        Constructor issuerNameConstructor = null;
        Constructor certImplConstructor = null;
        Method certImplGetMethod = null;
        Method certImplSignMethod = null;
        try {
            Object maybeCertInfoSetMethod = AccessController.doPrivileged(new PrivilegedAction() {
                @Override
                public Object run() {
                    try {
                        return X509CertInfo.class.getMethod("set", String.class, Object.class);
                    } catch (Throwable cause) {
                        return cause;
                    }
                }
            });
            if (maybeCertInfoSetMethod instanceof Method) {
                certInfoSetMethod = (Method) maybeCertInfoSetMethod;
            } else {
                throw (Throwable) maybeCertInfoSetMethod;
            }

            Object maybeIssuerNameConstructor = AccessController.doPrivileged(new PrivilegedAction() {
                @Override
                public Object run() {
                    try {
                        Class issuerName = Class.forName("sun.security.x509.CertificateIssuerName", false,
                                PlatformDependent.getClassLoader(OpenJdkSelfSignedCertGenerator.class));
                        return issuerName.getConstructor(X500Name.class);
                    } catch (Throwable cause) {
                        return cause;
                    }
                }
            });
            if (maybeIssuerNameConstructor instanceof Constructor) {
                issuerNameConstructor = (Constructor) maybeIssuerNameConstructor;
            } else {
                throw (Throwable) maybeIssuerNameConstructor;
            }

            Object maybeCertImplConstructor = AccessController.doPrivileged(new PrivilegedAction() {
                @Override
                public Object run() {
                    try {
                        return X509CertImpl.class.getConstructor(X509CertInfo.class);
                    } catch (Throwable cause) {
                        return cause;
                    }
                }
            });
            if (maybeCertImplConstructor instanceof Constructor) {
                @SuppressWarnings("unchecked")
                Constructor constructor = (Constructor) maybeCertImplConstructor;
                certImplConstructor = constructor;
            } else {
                throw (Throwable) maybeCertImplConstructor;
            }

            Object maybeCertImplGetMethod = AccessController.doPrivileged(new PrivilegedAction() {
                @Override
                public Object run() {
                    try {
                        return X509CertImpl.class.getMethod("get", String.class);
                    } catch (Throwable cause) {
                        return cause;
                    }
                }
            });
            if (maybeCertImplGetMethod instanceof Method) {
                certImplGetMethod = (Method) maybeCertImplGetMethod;
            } else {
                throw (Throwable) maybeCertImplGetMethod;
            }

            Object maybeCertImplSignMethod = AccessController.doPrivileged(new PrivilegedAction() {
                @Override
                public Object run() {
                    try {
                        return X509CertImpl.class.getMethod("sign", PrivateKey.class, String.class);
                    } catch (Throwable cause) {
                        return cause;
                    }
                }
            });
            if (maybeCertImplSignMethod instanceof Method) {
                certImplSignMethod = (Method) maybeCertImplSignMethod;
            } else {
                throw (Throwable) maybeCertImplSignMethod;
            }
        } catch (Throwable cause) {
            logger.debug(OpenJdkSelfSignedCertGenerator.class.getSimpleName() + " not supported", cause);
        }
        CERT_INFO_SET_METHOD = certInfoSetMethod;
        ISSUER_NAME_CONSTRUCTOR = issuerNameConstructor;
        CERT_IMPL_CONSTRUCTOR = certImplConstructor;
        CERT_IMPL_GET_METHOD = certImplGetMethod;
        CERT_IMPL_SIGN_METHOD = certImplSignMethod;
    }

    @SuppressJava6Requirement(reason = "Usage guarded by dependency check")
    static String[] generate(String fqdn, KeyPair keypair, SecureRandom random, Date notBefore, Date notAfter,
                             String algorithm) throws Exception {
        if (CERT_INFO_SET_METHOD == null || ISSUER_NAME_CONSTRUCTOR == null ||
                CERT_IMPL_CONSTRUCTOR == null || CERT_IMPL_GET_METHOD == null || CERT_IMPL_SIGN_METHOD == null) {
            throw new UnsupportedOperationException(
                    OpenJdkSelfSignedCertGenerator.class.getSimpleName() + " not supported on the used JDK version");
        }
        PrivateKey key = keypair.getPrivate();

        // Prepare the information required for generating an X.509 certificate.
        X509CertInfo info = new X509CertInfo();
        X500Name owner = new X500Name("CN=" + fqdn);

        CERT_INFO_SET_METHOD.invoke(info, X509CertInfo.VERSION, new CertificateVersion(CertificateVersion.V3));
        CERT_INFO_SET_METHOD.invoke(info, X509CertInfo.SERIAL_NUMBER,
                new CertificateSerialNumber(new BigInteger(64, random)));
        try {
            CERT_INFO_SET_METHOD.invoke(info, X509CertInfo.SUBJECT, new CertificateSubjectName(owner));
        } catch (InvocationTargetException ex) {
            if (ex.getCause() instanceof CertificateException) {
                CERT_INFO_SET_METHOD.invoke(info, X509CertInfo.SUBJECT, owner);
            } else {
                throw ex;
            }
        }
        try {
            CERT_INFO_SET_METHOD.invoke(info, X509CertInfo.ISSUER, ISSUER_NAME_CONSTRUCTOR.newInstance(owner));
        } catch (InvocationTargetException ex) {
            if (ex.getCause() instanceof CertificateException) {
                CERT_INFO_SET_METHOD.invoke(info, X509CertInfo.ISSUER, owner);
            } else {
                throw ex;
            }
        }
        CERT_INFO_SET_METHOD.invoke(info, X509CertInfo.VALIDITY, new CertificateValidity(notBefore, notAfter));
        CERT_INFO_SET_METHOD.invoke(info, X509CertInfo.KEY, new CertificateX509Key(keypair.getPublic()));
        CERT_INFO_SET_METHOD.invoke(info, X509CertInfo.ALGORITHM_ID,
                // sha256WithRSAEncryption
                new CertificateAlgorithmId(AlgorithmId.get("1.2.840.113549.1.1.11")));

        // Sign the cert to identify the algorithm that's used.
        X509CertImpl cert = CERT_IMPL_CONSTRUCTOR.newInstance(info);
        CERT_IMPL_SIGN_METHOD.invoke(cert, key, algorithm.equalsIgnoreCase("EC") ? "SHA256withECDSA" : "SHA256withRSA");

        // Update the algorithm and sign again.
        CERT_INFO_SET_METHOD.invoke(info, CertificateAlgorithmId.NAME + ".algorithm",
                CERT_IMPL_GET_METHOD.invoke(cert, "x509.algorithm"));
        cert = CERT_IMPL_CONSTRUCTOR.newInstance(info);
        CERT_IMPL_SIGN_METHOD.invoke(cert, key,
                algorithm.equalsIgnoreCase("EC") ? "SHA256withECDSA" : "SHA256withRSA");
        cert.verify(keypair.getPublic());

        return newSelfSignedCertificate(fqdn, key, cert);
    }

    private OpenJdkSelfSignedCertGenerator() { }
}
    

    

    

            

    

            



    
    






    
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