Android Open Source - owncloud-gallery Trust Modifier

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License

The source code is released under:

GNU General Public License

Java Source Code

package library;
/*from  w  w w.  j a  v  a2  s . co  m*/
import java.net.HttpURLConnection;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

public class TrustModifier {
  private static final TrustingHostnameVerifier TRUSTING_HOSTNAME_VERIFIER = new TrustingHostnameVerifier();
  private static SSLSocketFactory factory;

  /**
   * Call this with any HttpURLConnection, and it will modify the trust
   * settings if it is an HTTPS connection.
   */
  public static void relaxHostChecking(HttpURLConnection conn)
      throws KeyManagementException, NoSuchAlgorithmException,
      KeyStoreException {

    if (conn instanceof HttpsURLConnection) {
      HttpsURLConnection httpsConnection = (HttpsURLConnection) conn;
      SSLSocketFactory factory = prepFactory(httpsConnection);
      httpsConnection.setSSLSocketFactory(factory);
      httpsConnection.setHostnameVerifier(TRUSTING_HOSTNAME_VERIFIER);
    }
  }

  static synchronized SSLSocketFactory prepFactory(
      HttpsURLConnection httpsConnection)
      throws NoSuchAlgorithmException, KeyStoreException,
      KeyManagementException {

    if (factory == null) {
      SSLContext ctx = SSLContext.getInstance("TLS");
      ctx.init(null, new TrustManager[] { new AlwaysTrustManager() },
          null);
      factory = ctx.getSocketFactory();
    }
    return factory;
  }

  private static final class TrustingHostnameVerifier implements
      HostnameVerifier {
    public boolean verify(String hostname, SSLSession session) {
      return true;
    }
  }

  private static class AlwaysTrustManager implements X509TrustManager {
    public void checkClientTrusted(X509Certificate[] arg0, String arg1)
        throws CertificateException {
    }

    public void checkServerTrusted(X509Certificate[] arg0, String arg1)
        throws CertificateException {
    }

    public X509Certificate[] getAcceptedIssuers() {
      return null;
    }
  }

}

Java Source Code List

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