MySSLSocketFactory.java

package com.loopj.android.http;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.Socket;
import java.net.UnknownHostException;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
 
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
 
import org.apache.http.HttpVersion;
import org.apache.http.conn.ClientConnectionManager;
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.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.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.apache.http.protocol.HTTP;

/**
 * This file is introduced to fix HTTPS Post bug on API < ICS see
 * http://code.google.com/p/android/issues/detail?id=13117#c14 <p> </p> Warning! This omits SSL
 * certificate validation on every device, use with caution
 */
public class MySSLSocketFactory extends SSLSocketFactory {
    SSLContext sslContext = SSLContext.getInstance("TLS");

    /**
     * Creates a new SSL Socket Factory with the given KeyStore.
     * 
     * @param truststore A KeyStore to create the SSL Socket Factory in context of
     * @throws NoSuchAlgorithmException
     * @throws KeyManagementException
     * @throws KeyStoreException
     * @throws UnrecoverableKeyException
     */
    public MySSLSocketFactory(KeyStore truststore) throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
        super(truststore);
 
        X509TrustManager tm = new X509TrustManager() {
            public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
            }
 
            public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
            }
 
            public X509Certificate[] getAcceptedIssuers() {
                return null;
            }
        };
 
        sslContext.init(null, new TrustManager[] { tm }, null);
    }
    
    public Socket createSocket(Socket socket, String host, int port, boolean autoClose) throws IOException, UnknownHostException {
        return sslContext.getSocketFactory().createSocket(socket, host, port, autoClose);
    }
 
    @Override
    public Socket createSocket() throws IOException {
        return sslContext.getSocketFactory().createSocket();
    }	
    
    /**
     * Makes HttpsURLConnection trusts a set of certificates specified by the KeyStore
     */
    public void fixHttpsURLConnection() {
    	HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
    }
    
    /**
     * Gets a KeyStore containing the Certificate
     * 
     * @param cert InputStream of the Certificate
     * @return KeyStore
     */
	public static KeyStore getKeystoreOfCA(InputStream cert) {
		
		// Load CAs from an InputStream
		InputStream caInput = null;
		Certificate ca = null;
		try {
			CertificateFactory cf = CertificateFactory.getInstance("X.509");
			caInput = new BufferedInputStream(cert);
			ca = (Certificate) cf.generateCertificate(caInput);
		} catch (CertificateException e1) {
			e1.printStackTrace();
		} finally {
			try {
				caInput.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
 
		// Create a KeyStore containing our trusted CAs
		String keyStoreType = KeyStore.getDefaultType();
		KeyStore keyStore = null;
		try {
			keyStore = KeyStore.getInstance(keyStoreType);
			keyStore.load(null, null);
			keyStore.setCertificateEntry("ca",
					(java.security.cert.Certificate) ca);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return keyStore;
	}
	
	/**
	 * Gets a Default KeyStore
	 * 
	 * @return KeyStore
	 */
	public static KeyStore getKeystore() {
        KeyStore trustStore = null;
        try {
            trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
            trustStore.load(null, null);
        } catch (Throwable t) {
            t.printStackTrace();
        }
        return trustStore;
    }
 
	/**
	 * Returns a SSlSocketFactory which trusts all certificates
	 * 
	 * @return
	 */
    public static SSLSocketFactory getFixedSocketFactory() {
        SSLSocketFactory socketFactory;
        try {
            socketFactory = new MySSLSocketFactory(getKeystore());
            socketFactory.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
        } catch (Throwable t) {
            t.printStackTrace();
            socketFactory = SSLSocketFactory.getSocketFactory();
        }
        return socketFactory;
    }
    
    /**
     * Gets a DefaultHttpClient which trusts a set of certificates specified by the KeyStore
     * 
     * @param keyStore
     * @return
     */
	public static DefaultHttpClient getNewHttpClient(KeyStore keyStore) {
		
	    try {
		    SSLSocketFactory sf = new MySSLSocketFactory(keyStore);
		    SchemeRegistry registry = new SchemeRegistry();
		    registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
		    registry.register(new Scheme("https", sf, 443));
 
	        HttpParams params = new BasicHttpParams();
	        HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
	        HttpProtocolParams.setContentCharset(params, HTTP.UTF_8);
 
	        ClientConnectionManager ccm = new ThreadSafeClientConnManager(params, registry);
 
	        return new DefaultHttpClient(ccm, params);
	    } catch (Exception e) {
	        return new DefaultHttpClient();
	    }
	}

}