edu.rit.csh.androidwebnews.WebnewsHttpClient.java Source code

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/**
 See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership.  This code is licensed
 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.
 */
package edu.rit.csh.androidwebnews;

import android.content.Context;

import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.SingleClientConnManager;

import java.security.KeyStore;

/**
 * The HTTP client used in the get and post request to webnews.csh.rit.edu.
 * This client allows the use of the custom CSH certificate and can work with
 * both HTTP and HTTPS requests.
 *
 * @author JD
 */
class WebnewsHttpClient extends DefaultHttpClient {

    private final Context context;

    public WebnewsHttpClient(Context context) {
        this.context = context;
    }

    /**
     * Sets up the client connection with the correct schemes
     *
     * @return ClientConnectionManager
     */
    @Override
    protected ClientConnectionManager createClientConnectionManager() {
        SchemeRegistry registry = new SchemeRegistry();
        //registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
        // Register for port 443 our SSLSocketFactory with our keystore
        // to the ConnectionManager
        registry.register(new Scheme("https", newSslSocketFactory(), 443));
        return new SingleClientConnManager(getParams(), registry);
    }

    /**
     * Makes the SSL cert work correctly.
     *
     * @return SSLSocketFactory - provides the SSLFactory for communicating
     *         with the scheme
     */
    private SSLSocketFactory newSslSocketFactory() {
        try {
            // Get an instance of the Bouncy Castle KeyStore format
            KeyStore trusted = KeyStore.getInstance(KeyStore.getDefaultType());
            trusted.load(null, null);
            // Pass the keystore to the SSLSocketFactory. The factory is responsible
            // for the verification of the server certificate.
            SSLSocketFactory sf = new WebnewsSocketFactory(trusted);
            // Hostname verification from certificate
            // http://hc.apache.org/httpcomponents-client-ga/tutorial/html/connmgmt.html#d4e506
            sf.setHostnameVerifier(SSLSocketFactory.STRICT_HOSTNAME_VERIFIER);
            return sf;
        } catch (Exception e) {
            throw new AssertionError(e);
        }
    }
}