content: /*
   * Copyright (C) 2018 The Android Open Source Project
   *
   * 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 android.service.sms;
  
  import static com.android.internal.util.function.pooled.PooledLambda.obtainMessage;
  
  import android.annotation.NonNull;
  import android.annotation.Nullable;
  import android.annotation.SystemApi;
  import android.app.Service;
  import android.content.Intent;
  import android.database.CursorWindow;
  import android.os.Bundle;
  import android.os.Handler;
  import android.os.IBinder;
  import android.os.Looper;
  import android.os.RemoteCallback;
  import android.os.RemoteException;
  
  /**
   * A service to support sms messages read for financial apps.
   *
   * {@hide}
   */
  @SystemApi
  public abstract class FinancialSmsService extends Service {
  
      private static final String TAG = "FinancialSmsService";
  
      /**
       * The {@link Intent} action that must be declared as handled by a service
       * in its manifest for the system to recognize it as a quota providing
       * service.
       */
      public static final String ACTION_FINANCIAL_SERVICE_INTENT =
              "android.service.sms.action.FINANCIAL_SERVICE_INTENT";
  
      /** {@hide} **/
      public static final String EXTRA_SMS_MSGS = "sms_messages";
  
      private FinancialSmsServiceWrapper mWrapper;
  
      private void getSmsMessages(RemoteCallback callback, Bundle params) {
          final Bundle data = new Bundle();
          CursorWindow smsMessages = onGetSmsMessages(params);
          if (smsMessages != null) {
              data.putParcelable(EXTRA_SMS_MSGS, smsMessages);
          }
          callback.sendResult(data);
      }
  
      private final Handler mHandler = new Handler(Looper.getMainLooper(), null, true);
  
      /** @hide */
      public FinancialSmsService() {
      }
  
      @Override
      public void onCreate() {
          super.onCreate();
          mWrapper = new FinancialSmsServiceWrapper();
      }
  
      @Override
      public IBinder onBind(Intent intent) {
          return mWrapper;
      }
  
      /**
       * Get sms messages for financial apps.
       *
       * @param params parameters passed in by the calling app.
       * @return the {@code CursorWindow} with all sms messages for the app to read.
       *
       * {@hide}
       */
      @Nullable
      @SystemApi
      public abstract CursorWindow onGetSmsMessages(@NonNull Bundle params);
  
      private final class FinancialSmsServiceWrapper extends IFinancialSmsService.Stub {
          @Override
          public void getSmsMessages(RemoteCallback callback, Bundle params) throws RemoteException {
              mHandler.sendMessage(obtainMessage(
                      FinancialSmsService::getSmsMessages,
                      FinancialSmsService.this,
                      callback, params));
          }
      }
  
  }
  