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/*
 * Copyright 2010-2013, CloudBees Inc.
 *
 * Licensed 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.
 */

package com.cloudbees.api;

import org.apache.commons.httpclient.Credentials;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.UsernamePasswordCredentials;
import org.apache.commons.httpclient.auth.AuthScope;

public final class HttpClientHelper {
    private HttpClientHelper() {
        throw new IllegalAccessError("Utility class");
    }

    public static HttpClient createClient(BeesClientConfiguration beesClientConfiguration) {
        HttpClient client;
        if (beesClientConfiguration.getHttpClientParams() != null)
            client = new HttpClient(beesClientConfiguration.getHttpClientParams());
        else
            client = new HttpClient();
        String proxyHost = beesClientConfiguration.getProxyHost();
        if (proxyHost != null) {
            int proxyPort = beesClientConfiguration.getProxyPort();

            client.getHostConfiguration().setProxy(proxyHost, proxyPort);

            //if there are proxy credentials available, set those too
            Credentials proxyCredentials = null;
            String proxyUser = beesClientConfiguration.getProxyUser();
            String proxyPassword = beesClientConfiguration.getProxyPassword();
            if (proxyUser != null || proxyPassword != null) {
                proxyCredentials = new UsernamePasswordCredentials(proxyUser, proxyPassword);
            }
            if (proxyCredentials != null) {
                client.getState().setProxyCredentials(AuthScope.ANY, proxyCredentials);
            }
        }

        return client;
    }
}