Android Open Source - android-authenticator-framework Anonymous

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright (C) 2013 Marten Gajda <marten@dmfs.org>
 *// ww w.  ja  va2s  .  c om
 * 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 org.dmfs.android.authenticator.secrets.AnonymousAuthToken;
import org.dmfs.android.authenticator.secrets.AnonymousSecret;
import org.dmfs.android.authenticator.secrets.AuthToken;
import org.dmfs.android.authenticator.secrets.StoredSecret;

import android.accounts.Account;
import android.content.Context;
import android.net.Uri;


/**
 * Handler for anonymous authentication.
 * 
 * @author Marten Gajda <marten@dmfs.org>
 */
public class Anonymous extends AuthSchemeHandler
{
  /**
   * The scheme this {@link AuthSchemeHandler} handler handles.
   */
  public final static String SCHEME = "anonymous";

  /**
   * The auth token type this class support.
   */
  public final static Uri AUTH_TOKEN_TYPE = Uri.parse(SCHEME + ":");

  /**
   * A static instance of the {@link AuthenticationProvider} this class returns.
   */
  private final static AnonymousAuthenticationProvider AUTHENTICATION_PROVIDER = new AnonymousAuthenticationProvider();

  /**
   * The cached label.
   */
  private final String mLabel;


  public Anonymous(Context context, Uri authTokenType)
  {
    super(context, AUTH_TOKEN_TYPE);
    if (authTokenType == null || !SCHEME.equals(authTokenType.getScheme()))
    {
      throw new IllegalArgumentException("invalid auth token type for anonymous authentication: " + authTokenType);
    }
    mLabel = context.getString(R.string.org_dmfs_android_authenticator_authtoken_label_anonymous);
  }


  /*
   * (non-Javadoc)
   * 
   * @see org.dmfs.android.authenticator.AuthSchemeHandler#getLabel(android.content.Context)
   */
  @Override
  public String getLabel(Context context)
  {
    return mLabel;
  }


  /*
   * (non-Javadoc)
   * 
   * @see org.dmfs.android.authenticator.AuthSchemeHandler#getAuthToken(android.content.Context, android.accounts.Account)
   */
  @Override
  protected AuthToken getAuthToken(Context context, Account account)
  {
    return new AnonymousAuthToken(context);
  }


  /*
   * (non-Javadoc)
   * 
   * @see org.dmfs.android.authenticator.AuthSchemeHandler#getAuthToken(android.content.Context, org.dmfs.android.authenticator.secrets.StoredSecret)
   */
  @Override
  protected AuthToken getAuthToken(Context context, StoredSecret secret)
  {
    return new AnonymousAuthToken(context);
  }


  /*
   * Returns a static AnonymousAuthenticationProvider instance.
   * 
   * (non-Javadoc)
   * 
   * @see org.dmfs.android.authenticator.AuthSchemeHandler#getAuthenticationProvider(android.content.Context, android.accounts.Account)
   */
  @Override
  public AuthenticationProvider<? extends AuthToken> getAuthenticationProvider(Context context, Account account)
  {
    return AUTHENTICATION_PROVIDER;
  }


  /*
   * Returns a static AnonymousAuthenticationProvider instance.
   * 
   * (non-Javadoc)
   * 
   * @see org.dmfs.android.authenticator.AuthSchemeHandler#getAuthenticationProvider(android.content.Context,
   * org.dmfs.android.authenticator.secrets.StoredSecret)
   */
  @Override
  public AuthenticationProvider<? extends AuthToken> getAuthenticationProvider(Context context, StoredSecret secret)
  {
    return AUTHENTICATION_PROVIDER;
  }


  /*
   * (non-Javadoc)
   * 
   * @see org.dmfs.android.authenticator.AuthSchemeHandler#getSecret(android.content.Context, android.accounts.Account)
   */
  @Override
  public StoredSecret getSecret(Context context, Account account)
  {
    // just return a new secret
    return new AnonymousSecret(context);
  }
}

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