org.apache.archiva.proxy.common.DefaultWagonFactory.java Source code

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Here is the source code for org.apache.archiva.proxy.common.DefaultWagonFactory.java

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package org.apache.archiva.proxy.common;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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
 *
 *  http://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.
 */

import org.apache.commons.lang.StringUtils;
import org.apache.maven.wagon.Wagon;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Service;

import javax.inject.Inject;
import java.lang.reflect.Method;
import java.util.Map;
import java.util.Properties;

/**
 * @author Olivier Lamy
 * @since 1.4-M1
 */
@Service("wagonFactory")
public class DefaultWagonFactory implements WagonFactory {

    private ApplicationContext applicationContext;

    private Logger logger = LoggerFactory.getLogger(getClass());

    private DebugTransferListener debugTransferListener = new DebugTransferListener();

    @Inject
    public DefaultWagonFactory(ApplicationContext applicationContext) {
        this.applicationContext = applicationContext;
    }

    @Override
    public Wagon getWagon(WagonFactoryRequest wagonFactoryRequest) throws WagonFactoryException {
        try {
            String protocol = StringUtils.startsWith(wagonFactoryRequest.getProtocol(), "wagon#")
                    ? wagonFactoryRequest.getProtocol()
                    : "wagon#" + wagonFactoryRequest.getProtocol();

            // if it's a ntlm proxy we have to lookup the wagon light which support thats
            // wagon http client doesn't support that
            if (wagonFactoryRequest.getNetworkProxy() != null
                    && wagonFactoryRequest.getNetworkProxy().isUseNtlm()) {
                protocol = protocol + "-ntlm";
            }

            Wagon wagon = applicationContext.getBean(protocol, Wagon.class);
            wagon.addTransferListener(debugTransferListener);
            configureUserAgent(wagon, wagonFactoryRequest);
            return wagon;
        } catch (BeansException e) {
            throw new WagonFactoryException(e.getMessage(), e);
        }
    }

    protected void configureUserAgent(Wagon wagon, WagonFactoryRequest wagonFactoryRequest) {
        try {
            Class clazz = wagon.getClass();
            Method getHttpHeaders = clazz.getMethod("getHttpHeaders");

            Properties headers = (Properties) getHttpHeaders.invoke(wagon);
            if (headers == null) {
                headers = new Properties();
            }

            headers.put("User-Agent", wagonFactoryRequest.getUserAgent());

            if (!wagonFactoryRequest.getHeaders().isEmpty()) {
                for (Map.Entry<String, String> entry : wagonFactoryRequest.getHeaders().entrySet()) {
                    headers.put(entry.getKey(), entry.getValue());
                }
            }

            Method setHttpHeaders = clazz.getMethod("setHttpHeaders", new Class[] { Properties.class });
            setHttpHeaders.invoke(wagon, headers);

            logger.debug("http headers set to: {}", headers);
        } catch (Exception e) {
            logger.warn("fail to configure User-Agent: {}", e.getMessage(), e);
        }
    }
}