Android Open Source - android-authenticator-framework Anonymous Authentication Provider

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License

The source code is released under:

GNU General Public License

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Java Source Code

/*
 * Copyright (C) 2013 Marten Gajda <marten@dmfs.org>
 *//from w  ww  .  j  a  va 2s  .c o m
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2 of the License,
 * or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

package org.dmfs.android.authenticator;

import java.io.IOException;

import org.apache.http.auth.AuthSchemeFactory;
import org.apache.http.impl.client.AbstractHttpClient;
import org.dmfs.android.authenticator.handlers.HttpClientAuthenticationHandler;
import org.dmfs.android.authenticator.secrets.AnonymousAuthToken;

import android.accounts.Account;
import android.accounts.AuthenticatorException;
import android.content.Context;


/**
 * Authentication provider for anonymous authentication.
 * 
 * @author Marten Gajda <marten@dmfs.org>
 */
public class AnonymousAuthenticationProvider extends AuthenticationProvider<AnonymousAuthToken> implements IHttpClientAuthenticationHandlerFactory
{

  private final static HttpClientAuthenticationHandler HTTP_AUTHENTICATOR = new HttpClientAuthenticationHandler()
  {

    @Override
    public void authenticate(AbstractHttpClient client)
    {
      // nothing to do
    }


    @Override
    public AuthSchemeFactory getPreemptiveAuthSchemeFactory()
    {
      // anonymous authentication doesn't support preemptive authentication
      return null;
    }
  };


  public AnonymousAuthenticationProvider()
  {
    super(null, Anonymous.AUTH_TOKEN_TYPE);
  }


  public AnonymousAuthenticationProvider(Context context, Account account) throws AuthenticatorException, IOException, AuthenticationException
  {
    super(context, account, Anonymous.AUTH_TOKEN_TYPE);
  }


  @Override
  protected void refreshAuthToken(Context context, Account account, AnonymousAuthToken authToken)
  {
    // nothing to do
  }


  @Override
  public boolean canRefresh()
  {
    // we can't refresh the password
    return false;
  }


  @Override
  protected boolean needsRefresh(AnonymousAuthToken authToken)
  {
    return false;
  }


  @Override
  public AnonymousAuthToken getAuthToken(Context context, Account account)
  {
    return new AnonymousAuthToken(context);
  }


  @Override
  public HttpClientAuthenticationHandler getHttpClientAuthenticationHandler(Context context)
  {
    return HTTP_AUTHENTICATOR;
  }

}

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