com.amazon.s3.http.HttpClientFactory.java Source code

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Here is the source code for com.amazon.s3.http.HttpClientFactory.java

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package com.amazon.s3.http;

/*
 * Copyright 2011-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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 java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import org.apache.http.Header;
import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.ProtocolException;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.NTCredentials;
import org.apache.http.client.HttpClient;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.conn.params.ConnRoutePNames;
//import org.apache.http.conn.scheme.LayeredSchemeSocketFactory;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
//import org.apache.http.conn.scheme.SchemeSocketFactory;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.apache.http.protocol.HttpContext;
import org.apache.http.client.params.HttpClientParams;

import android.util.Log;

import com.amazon.s3.ClientConfiguration;

/** Responsible for creating and configuring instances of Apache HttpClient4. */
class HttpClientFactory {

    private static final String TAG = "###HttpClientFactory###";

    /**
      * Creates a new HttpClient object using the specified AWS
      * ClientConfiguration to configure the client.
      *
      * @param config
      *            Client configuration options (ex: proxy settings, connection
      *            limits, etc).
      *
      * @return The new, configured HttpClient.
      */
    public HttpClient createHttpClient(ClientConfiguration config) {
        /* Form User-Agent information */
        String userAgent = config.getUserAgent();
        if (!(userAgent.equals(ClientConfiguration.DEFAULT_USER_AGENT))) {
            userAgent += ", " + ClientConfiguration.DEFAULT_USER_AGENT;
        }

        /* Set HTTP client parameters */
        HttpParams httpClientParams = new BasicHttpParams();
        HttpClientParams.setRedirecting(httpClientParams, false);
        HttpProtocolParams.setUserAgent(httpClientParams, userAgent);
        HttpConnectionParams.setConnectionTimeout(httpClientParams, config.getConnectionTimeout());
        HttpConnectionParams.setSoTimeout(httpClientParams, config.getSocketTimeout());
        HttpConnectionParams.setStaleCheckingEnabled(httpClientParams, false);
        HttpConnectionParams.setTcpNoDelay(httpClientParams, true);

        int socketSendBufferSizeHint = config.getSocketBufferSizeHints()[0];
        int socketReceiveBufferSizeHint = config.getSocketBufferSizeHints()[1];
        if (socketSendBufferSizeHint > 0 || socketReceiveBufferSizeHint > 0) {
            HttpConnectionParams.setSocketBufferSize(httpClientParams,
                    Math.max(socketSendBufferSizeHint, socketReceiveBufferSizeHint));
        }

        /* Set connection manager */
        ThreadSafeClientConnManager connectionManager = ConnectionManagerFactory
                .createThreadSafeClientConnManager(config, httpClientParams);
        DefaultHttpClient httpClient = new DefaultHttpClient(connectionManager, httpClientParams);

        /* Set proxy if configured */
        String proxyHost = config.getProxyHost();
        int proxyPort = config.getProxyPort();
        if (proxyHost != null && proxyPort > 0) {
            Log.i(TAG, "Configuring Proxy. Proxy Host: " + proxyHost + " " + "Proxy Port: " + proxyPort);
            HttpHost proxyHttpHost = new HttpHost(proxyHost, proxyPort);
            httpClient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxyHttpHost);

            String proxyUsername = config.getProxyUsername();
            String proxyPassword = config.getProxyPassword();
            String proxyDomain = config.getProxyDomain();
            String proxyWorkstation = config.getProxyWorkstation();

            if (proxyUsername != null && proxyPassword != null) {
                httpClient.getCredentialsProvider().setCredentials(new AuthScope(proxyHost, proxyPort),
                        new NTCredentials(proxyUsername, proxyPassword, proxyWorkstation, proxyDomain));
            }
        }

        return httpClient;
    }

}