fish.payara.ejb.http.protocol.rs.ObjectStreamInvokeMethodMessageBodyReader Maven / Gradle / Ivy

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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2019-2021 Payara Foundation and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://github.com/payara/Payara/blob/master/LICENSE.txt
 * See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * The Payara Foundation designates this particular file as subject to the "Classpath"
 * exception as provided by the Payara Foundation in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */
package fish.payara.ejb.http.protocol.rs;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;

import jakarta.ws.rs.Consumes;
import jakarta.ws.rs.InternalServerErrorException;
import jakarta.ws.rs.WebApplicationException;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.MultivaluedMap;
import jakarta.ws.rs.ext.MessageBodyReader;
import jakarta.ws.rs.ext.Provider;

import org.apache.commons.io.input.ClassLoaderObjectInputStream;

import fish.payara.ejb.http.protocol.InvokeMethodRequest;
import fish.payara.ejb.http.protocol.MediaTypes;

/**
 * Reads the {@link InvokeMethodRequest} in case of java serialisation.
 * 
 * In that case the {@link InvokeMethodRequest#argValues} are java serialised {@code byte[]} representation of the
 * original {@code Object[]} for the method arguments so that the argument {@link Object} are not attempted to be
 * de-serialised already during {@link #readFrom(Class, Type, Annotation[], MediaType, MultivaluedMap, InputStream)}.
 *
 * @author Jan Bernitt
 */
@Provider
@Consumes(MediaTypes.JAVA_OBJECT)
public class ObjectStreamInvokeMethodMessageBodyReader implements MessageBodyReader {

    @Override
    public boolean isReadable(Class type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return InvokeMethodRequest.class.isAssignableFrom(type);
    }

    @Override
    public InvokeMethodRequest readFrom(Class type, Type genericType, Annotation[] annotations,
            MediaType mediaType, MultivaluedMap httpHeaders, InputStream entityStream)
            throws IOException, WebApplicationException {
        try {
            InvokeMethodRequest request = (InvokeMethodRequest) new ObjectInputStream(entityStream).readObject();
            request.argDeserializer = (args, method, types, classloader) -> {
                try (ObjectInputStream ois = new ClassLoaderObjectInputStream(classloader,
                        new ByteArrayInputStream((byte[]) args))) {
                    return (Object[]) ois.readObject();
                } catch (Exception ex) {
                    throw new InternalServerErrorException(
                            "Failed to de-serialise method arguments from binary representation.", ex);
                }
            };
            return request;
        } catch (ClassNotFoundException ex) {
            throw new InternalServerErrorException("Class not found while de-serialising object stream as "
                    + type.getSimpleName() + " : " + ex.getMessage(), ex);
        }
    }

}