Signal-Android/src/org/thoughtcrime/securesms/jobs/PushReceivedJob.java

package org.thoughtcrime.securesms.jobs;

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

import org.thoughtcrime.securesms.ApplicationContext;
import org.thoughtcrime.securesms.database.Address;
import org.thoughtcrime.securesms.database.DatabaseFactory;
import org.thoughtcrime.securesms.database.MessagingDatabase.SyncMessageId;
import org.thoughtcrime.securesms.database.RecipientPreferenceDatabase.RecipientsPreferences;
import org.thoughtcrime.securesms.recipients.Recipient;
import org.thoughtcrime.securesms.service.KeyCachingService;
import org.thoughtcrime.securesms.util.Util;
import org.whispersystems.jobqueue.JobManager;
import org.whispersystems.jobqueue.JobParameters;
import org.whispersystems.libsignal.util.guava.Optional;
import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;

import java.util.LinkedList;

public abstract class PushReceivedJob extends ContextJob {

  private static final String TAG = PushReceivedJob.class.getSimpleName();

  protected PushReceivedJob(Context context, JobParameters parameters) {
    super(context, parameters);
  }

  public void handle(SignalServiceEnvelope envelope, boolean sendExplicitReceipt) {
    Address source = Address.fromExternal(context, envelope.getSource());

    if (!isActiveNumber(context, source)) {
      DatabaseFactory.getRecipientPreferenceDatabase(context).setRegistered(Util.asList(source), new LinkedList<>());
      Recipient recipient = Recipient.from(context, source, false);
      ApplicationContext.getInstance(context).getJobManager().add(new DirectoryRefreshJob(context, KeyCachingService.getMasterSecret(context), recipient));
    }

    if (envelope.isReceipt()) {
      handleReceipt(envelope);
    } else if (envelope.isPreKeySignalMessage() || envelope.isSignalMessage()) {
      handleMessage(envelope, source, sendExplicitReceipt);
    } else {
      Log.w(TAG, "Received envelope of unknown type: " + envelope.getType());
    }
  }

  private void handleMessage(SignalServiceEnvelope envelope, Address source, boolean sendExplicitReceipt) {
    Recipient  recipients = Recipient.from(context, source, false);
    JobManager jobManager = ApplicationContext.getInstance(context).getJobManager();

    if (!recipients.isBlocked()) {
      long messageId = DatabaseFactory.getPushDatabase(context).insert(envelope);
      jobManager.add(new PushDecryptJob(context, messageId));
    } else {
      Log.w(TAG, "*** Received blocked push message, ignoring...");
    }

    if (sendExplicitReceipt) {
      jobManager.add(new DeliveryReceiptJob(context, envelope.getSource(),
                                            envelope.getTimestamp(),
                                            envelope.getRelay()));
    }
  }

  private void handleReceipt(SignalServiceEnvelope envelope) {
    Log.w(TAG, String.format("Received receipt: (XXXXX, %d)", envelope.getTimestamp()));
    DatabaseFactory.getMmsSmsDatabase(context).incrementDeliveryReceiptCount(new SyncMessageId(Address.fromExternal(context, envelope.getSource()),
                                                                                               envelope.getTimestamp()));
  }

  private boolean isActiveNumber(Context context, Address address) {
    Optional<RecipientsPreferences> preferences = DatabaseFactory.getRecipientPreferenceDatabase(context).getRecipientsPreferences(address);
    return preferences.isPresent() && preferences.get().isRegistered();
  }


}