Only perform subscriber id keep-alive when the user foregrounds the app.

app/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java

@@ -54,6 +54,7 @@ import org.thoughtcrime.securesms.jobs.MultiDeviceContactUpdateJob;
 import org.thoughtcrime.securesms.jobs.PushNotificationReceiveJob;
 import org.thoughtcrime.securesms.jobs.RefreshPreKeysJob;
 import org.thoughtcrime.securesms.jobs.RetrieveProfileJob;
+import org.thoughtcrime.securesms.jobs.SubscriptionKeepAliveJob;
 import org.thoughtcrime.securesms.keyvalue.SignalStore;
 import org.thoughtcrime.securesms.logging.CustomSignalProtocolLogger;
 import org.thoughtcrime.securesms.logging.PersistentLogger;
@@ -61,7 +62,6 @@ import org.thoughtcrime.securesms.messageprocessingalarm.MessageProcessReceiver;
 import org.thoughtcrime.securesms.migrations.ApplicationMigrations;
 import org.thoughtcrime.securesms.notifications.NotificationChannels;
 import org.thoughtcrime.securesms.providers.BlobProvider;
-import org.thoughtcrime.securesms.push.SignalServiceNetworkAccess;
 import org.thoughtcrime.securesms.ratelimit.RateLimitUtil;
 import org.thoughtcrime.securesms.registration.RegistrationUtil;
 import org.thoughtcrime.securesms.ringrtc.RingRtcLogger;
@@ -70,7 +70,6 @@ import org.thoughtcrime.securesms.service.KeyCachingService;
 import org.thoughtcrime.securesms.service.LocalBackupListener;
 import org.thoughtcrime.securesms.service.RotateSenderCertificateListener;
 import org.thoughtcrime.securesms.service.RotateSignedPreKeyListener;
-import org.thoughtcrime.securesms.service.SubscriberIdKeepAliveListener;
 import org.thoughtcrime.securesms.service.UpdateApkRefreshListener;
 import org.thoughtcrime.securesms.storage.StorageSyncHelper;
 import org.thoughtcrime.securesms.util.AppForegroundObserver;
@@ -193,6 +192,7 @@ public class ApplicationContext extends MultiDexApplication implements AppForegr
     ApplicationDependencies.getFrameRateTracker().start();
     ApplicationDependencies.getMegaphoneRepository().onAppForegrounded();
     ApplicationDependencies.getDeadlockDetector().start();
+    SubscriptionKeepAliveJob.launchSubscriberIdKeepAliveJobIfNecessary();
 
     SignalExecutors.BOUNDED.execute(() -> {
       FeatureFlags.refreshIfNecessary();
@@ -334,7 +334,6 @@ public class ApplicationContext extends MultiDexApplication implements AppForegr
     LocalBackupListener.schedule(this);
     RotateSenderCertificateListener.schedule(this);
     MessageProcessReceiver.startOrUpdateAlarm(this);
-    SubscriberIdKeepAliveListener.schedule(this);
 
     if (BuildConfig.PLAY_STORE_DISABLED) {
       UpdateApkRefreshListener.schedule(this);

app/src/main/java/org/thoughtcrime/securesms/jobs/SubscriptionKeepAliveJob.java

@@ -29,11 +29,22 @@ public class SubscriptionKeepAliveJob extends BaseJob {
   private static final String TAG         = Log.tag(SubscriptionKeepAliveJob.class);
   private static final long   JOB_TIMEOUT = TimeUnit.DAYS.toMillis(3);
 
-  public SubscriptionKeepAliveJob() {
+  public static void launchSubscriberIdKeepAliveJobIfNecessary() {
+    long nextLaunchTime = SignalStore.donationsValues().getLastKeepAliveLaunchTime() + TimeUnit.DAYS.toMillis(3);
+    long now            = System.currentTimeMillis();
+
+    if (nextLaunchTime <= now) {
+      ApplicationDependencies.getJobManager().add(new SubscriptionKeepAliveJob());
+      SignalStore.donationsValues().setLastKeepAliveLaunchTime(now);
+    }
+  }
+
+  private SubscriptionKeepAliveJob() {
     this(new Parameters.Builder()
                        .setQueue(KEY)
                        .addConstraint(NetworkConstraint.KEY)
                        .setMaxInstancesForQueue(1)
+                       .setMaxAttempts(Parameters.UNLIMITED)
                        .setLifespan(JOB_TIMEOUT)
                        .build());
   }
@@ -68,22 +79,15 @@ public class SubscriptionKeepAliveJob extends BaseJob {
                                                                      .putSubscription(subscriber.getSubscriberId())
                                                                      .blockingGet();
 
-    if (!response.getResult().isPresent()) {
-      if (response.getStatus() == 403) {
-        Log.w(TAG, "Response code 403, possibly corrupted subscription id.");
-        // TODO [alex] - Probably need some UX around this, or some kind of protocol.
-      }
-
-      throw new IOException("Failed to ping subscription service.");
-    }
+    verifyResponse(response);
+    Log.i(TAG, "Successful call to PUT subscription ID");
 
     ServiceResponse<ActiveSubscription> activeSubscriptionResponse = ApplicationDependencies.getDonationsService()
                                                                                             .getSubscription(subscriber.getSubscriberId())
                                                                                             .blockingGet();
 
-    if (!response.getResult().isPresent()) {
-      throw new IOException("Failed to perform active subscription check");
-    }
+    verifyResponse(activeSubscriptionResponse);
+    Log.i(TAG, "Successful call to GET active subscription");
 
     ActiveSubscription activeSubscription = activeSubscriptionResponse.getResult().get();
     if (activeSubscription.getActiveSubscription() == null || !activeSubscription.getActiveSubscription().isActive()) {
@@ -97,9 +101,29 @@ public class SubscriptionKeepAliveJob extends BaseJob {
     }
   }
 
+  private <T> void verifyResponse(@NonNull ServiceResponse<T> response) throws Exception {
+    if (response.getExecutionError().isPresent()) {
+      Log.w(TAG, "Failed with an execution error. Scheduling retry.", response.getExecutionError().get(), true);
+      throw new RetryableException();
+    } else if (response.getApplicationError().isPresent()) {
+      switch (response.getStatus()) {
+        case 403:
+        case 404:
+          Log.w(TAG, "Invalid or malformed subscriber id. Status: " + response.getStatus(), response.getApplicationError().get(), true);
+          throw new IOException();
+        default:
+          Log.w(TAG, "An unknown server error occurred: " + response.getStatus(), response.getApplicationError().get(), true);
+          throw new RetryableException();
+      }
+    }
+  }
+
   @Override
   protected boolean onShouldRetry(@NonNull Exception e) {
-    return true;
+    return e instanceof RetryableException;
+  }
+
+  private static class RetryableException extends Exception {
   }
 
   public static class Factory implements Job.Factory<SubscriptionKeepAliveJob> {

app/src/main/java/org/thoughtcrime/securesms/service/SubscriberIdKeepAliveListener.java

@@ -1,39 +0,0 @@
-package org.thoughtcrime.securesms.service;
-
-import android.content.Context;
-import android.content.Intent;
-
-import org.thoughtcrime.securesms.dependencies.ApplicationDependencies;
-import org.thoughtcrime.securesms.jobs.SubscriptionKeepAliveJob;
-import org.thoughtcrime.securesms.keyvalue.SignalStore;
-
-import java.util.concurrent.TimeUnit;
-
-/**
- * Manages the scheduling of jobs for keeping a subscription id alive.
- */
-public class SubscriberIdKeepAliveListener extends PersistentAlarmManagerListener {
-
-  private static final long INTERVAL = TimeUnit.DAYS.toMillis(3);
-
-  @Override
-  protected long getNextScheduledExecutionTime(Context context) {
-    return SignalStore.donationsValues().getLastKeepAliveLaunchTime() + INTERVAL;
-  }
-
-  @Override
-  protected long onAlarm(Context context, long scheduledTime) {
-    if (SignalStore.donationsValues().getSubscriber() != null) {
-      ApplicationDependencies.getJobManager().add(new SubscriptionKeepAliveJob());
-    }
-
-    long now = System.currentTimeMillis();
-    SignalStore.donationsValues().setLastKeepAliveLaunchTime(now);
-
-    return now + INTERVAL;
-  }
-
-  public static void schedule(Context context) {
-    new SubscriberIdKeepAliveListener().onReceive(context, new Intent());
-  }
-}