Android Open Source - Divide_And_Conquer_Card_Shuffler Billing Receiver

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License

The source code is released under:

MIT License

Java Source Code

/*
 * Copyright (C) 2010 The Android Open Source Project
 */*from   w  ww  .java  2s.  c o m*/
 * Licensed 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 com.andrewkeeton.divide.and.conquer.card.shuffler.billing;

import com.andrewkeeton.divide.and.conquer.card.shuffler.billing.Consts.ResponseCode;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

/**
 * This class implements the broadcast receiver for in-app billing. All
 * asynchronous messages from Android Market come to this app through this
 * receiver. This class forwards all messages to the {@link BillingService},
 * which can start background threads, if necessary, to process the messages.
 * This class runs on the UI thread and must not do any network I/O, database
 * updates, or any tasks that might take a long time to complete. It also must
 * not start a background thread because that may be killed as soon as
 * {@link #onReceive(Context, Intent)} returns.
 * 
 * You should modify and obfuscate this code before using it.
 */
public class BillingReceiver extends BroadcastReceiver {
  private static final String TAG = "BillingReceiver";

  /**
   * This is the entry point for all asynchronous messages sent from Android
   * Market to the application. This method forwards the messages on to the
   * {@link BillingService}, which handles the communication back to Android
   * Market. The {@link BillingService} also reports state changes back to the
   * application through the {@link ResponseHandler}.
   */
  @Override
  public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();
    if (Consts.ACTION_PURCHASE_STATE_CHANGED.equals(action)) {
      String signedData = intent.getStringExtra(Consts.INAPP_SIGNED_DATA);
      String signature = intent.getStringExtra(Consts.INAPP_SIGNATURE);
      purchaseStateChanged(context, signedData, signature);
    } else if (Consts.ACTION_NOTIFY.equals(action)) {
      String notifyId = intent.getStringExtra(Consts.NOTIFICATION_ID);
      if (Consts.DEBUG) {
        Log.i(TAG, "notifyId: " + notifyId);
      }
      notify(context, notifyId);
    } else if (Consts.ACTION_RESPONSE_CODE.equals(action)) {
      long requestId = intent.getLongExtra(Consts.INAPP_REQUEST_ID, -1);
      int responseCodeIndex = intent.getIntExtra(
          Consts.INAPP_RESPONSE_CODE,
          ResponseCode.RESULT_ERROR.ordinal());
      checkResponseCode(context, requestId, responseCodeIndex);
    } else {
      Log.w(TAG, "unexpected action: " + action);
    }
  }

  /**
   * This is called when Android Market sends information about a purchase
   * state change. The signedData parameter is a plaintext JSON string that is
   * signed by the server with the developer's private key. The signature for
   * the signed data is passed in the signature parameter.
   * 
   * @param context
   *            the context
   * @param signedData
   *            the (unencrypted) JSON string
   * @param signature
   *            the signature for the signedData
   */
  private void purchaseStateChanged(Context context, String signedData,
      String signature) {
    Intent intent = new Intent(Consts.ACTION_PURCHASE_STATE_CHANGED);
    intent.setClass(context, BillingService.class);
    intent.putExtra(Consts.INAPP_SIGNED_DATA, signedData);
    intent.putExtra(Consts.INAPP_SIGNATURE, signature);
    context.startService(intent);
  }

  /**
   * This is called when Android Market sends a "notify" message indicating
   * that transaction information is available. The request includes a nonce
   * (random number used once) that we generate and Android Market signs and
   * sends back to us with the purchase state and other transaction details.
   * This BroadcastReceiver cannot bind to the MarketBillingService directly
   * so it starts the {@link BillingService}, which does the actual work of
   * sending the message.
   * 
   * @param context
   *            the context
   * @param notifyId
   *            the notification ID
   */
  private void notify(Context context, String notifyId) {
    Intent intent = new Intent(Consts.ACTION_GET_PURCHASE_INFORMATION);
    intent.setClass(context, BillingService.class);
    intent.putExtra(Consts.NOTIFICATION_ID, notifyId);
    context.startService(intent);
  }

  /**
   * This is called when Android Market sends a server response code. The
   * BillingService can then report the status of the response if desired.
   * 
   * @param context
   *            the context
   * @param requestId
   *            the request ID that corresponds to a previous request
   * @param responseCodeIndex
   *            the ResponseCode ordinal value for the request
   */
  private void checkResponseCode(Context context, long requestId,
      int responseCodeIndex) {
    Intent intent = new Intent(Consts.ACTION_RESPONSE_CODE);
    intent.setClass(context, BillingService.class);
    intent.putExtra(Consts.INAPP_REQUEST_ID, requestId);
    intent.putExtra(Consts.INAPP_RESPONSE_CODE, responseCodeIndex);
    context.startService(intent);
  }
}

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