session-android/src/org/thoughtcrime/securesms/recipients/RecipientUtil.java

package org.thoughtcrime.securesms.recipients;

import android.content.Context;

import androidx.annotation.NonNull;
import androidx.annotation.WorkerThread;

import org.thoughtcrime.securesms.ApplicationContext;
import org.thoughtcrime.securesms.contacts.sync.DirectoryHelper;
import org.thoughtcrime.securesms.database.RecipientDatabase;
import org.thoughtcrime.securesms.database.RecipientDatabase.RegisteredState;
import org.thoughtcrime.securesms.dependencies.ApplicationDependencies;
import org.thoughtcrime.securesms.jobs.DirectoryRefreshJob;
import org.thoughtcrime.securesms.logging.Log;
import org.thoughtcrime.securesms.util.FeatureFlags;
import org.whispersystems.libsignal.util.guava.Optional;
import org.whispersystems.signalservice.api.push.SignalServiceAddress;

import java.io.IOException;

public class RecipientUtil {

  private static final String TAG = Log.tag(RecipientUtil.class);

  /**
   * This method will do it's best to craft a fully-populated {@link SignalServiceAddress} based on
   * the provided recipient. This includes performing a possible network request if no UUID is
   * available.
   */
  @WorkerThread
  public static @NonNull SignalServiceAddress toSignalServiceAddress(@NonNull Context context, @NonNull Recipient recipient) {
    recipient = recipient.resolve();

    if (!recipient.getUuid().isPresent() && !recipient.getE164().isPresent()) {
      throw new AssertionError(recipient.getId() + " - No UUID or phone number!");
    }

    if (FeatureFlags.UUIDS && !recipient.getUuid().isPresent()) {
      Log.i(TAG, recipient.getId() + " is missing a UUID...");
      try {
        RegisteredState state = DirectoryHelper.refreshDirectoryFor(context, recipient, false);
        recipient = Recipient.resolved(recipient.getId());
        Log.i(TAG, "Successfully performed a UUID fetch for " + recipient.getId() + ". Registered: " + state);
      } catch (IOException e) {
        Log.w(TAG, "Failed to fetch a UUID for " + recipient.getId() + ". Scheduling a future fetch and building an address without one.");
        ApplicationDependencies.getJobManager().add(new DirectoryRefreshJob(recipient, false));
      }
    }

    return new SignalServiceAddress(Optional.fromNullable(recipient.getUuid().orNull()), Optional.fromNullable(recipient.resolve().getE164().orNull()));
  }

  public static boolean isBlockable(@NonNull Recipient recipient) {
    Recipient resolved = recipient.resolve();
    return resolved.isPushGroup() || resolved.hasServiceIdentifier();
  }
}