Cancel typing jobs when you send a group message.

app/src/main/java/org/thoughtcrime/securesms/dependencies/ApplicationDependencyProvider.java

@@ -46,6 +46,7 @@
 import org.whispersystems.signalservice.api.websocket.ConnectivityListener;
 
 import java.util.UUID;
+import java.util.concurrent.Executors;
 
 /**
  * Implementation of {@link ApplicationDependencies.Provider} that provides real app dependencies.
@@ -91,7 +92,7 @@ public ApplicationDependencyProvider(@NonNull Application context, @NonNull Sign
                                             Optional.fromNullable(IncomingMessageObserver.getUnidentifiedPipe()),
                                             Optional.of(new SecurityEventListener(context)),
                                             provideClientZkOperations().getProfileOperations(),
-                                            SignalExecutors.UNBOUNDED);
+                                            SignalExecutors.newCachedBoundedExecutor("signal-messages", 1, 16));
   }
 
   @Override

app/src/main/java/org/thoughtcrime/securesms/jobmanager/JobController.java

@@ -23,6 +23,7 @@
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Set;
 
 /**
@@ -150,6 +151,14 @@ synchronized void cancelJob(@NonNull String id) {
     }
   }
 
+  @WorkerThread
+  synchronized void cancelAllInQueue(@NonNull String queue) {
+    Stream.of(runningJobs.values())
+          .filter(j -> Objects.equals(j.getParameters().getQueue(), queue))
+          .map(Job::getId)
+          .forEach(this::cancelJob);
+  }
+
   @WorkerThread
   synchronized void onRetry(@NonNull Job job) {
     int    nextRunAttempt     = job.getRunAttempt() + 1;

app/src/main/java/org/thoughtcrime/securesms/jobmanager/JobManager.java

@@ -198,6 +198,13 @@ public void cancel(@NonNull String id) {
     executor.execute(() -> jobController.cancelJob(id));
   }
 
+  /**
+   * Cancels all jobs in the specified queue. See {@link #cancel(String)} for details.
+   */
+  public void cancelAllInQueue(@NonNull String queue) {
+    executor.execute(() -> jobController.cancelAllInQueue(queue));
+  }
+
   /**
    * Runs the specified job synchronously. Beware: All normal dependencies are respected, meaning
    * you must take great care where you call this. It could take a very long time to complete!

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

@@ -151,6 +151,9 @@ public void onPushSend()
     List<NetworkFailure>      existingNetworkFailures    = message.getNetworkFailures();
     List<IdentityKeyMismatch> existingIdentityMismatches = message.getIdentityKeyMismatches();
 
+    long threadId = DatabaseFactory.getThreadDatabase(context).getThreadIdFor(message.getRecipient());
+    ApplicationDependencies.getJobManager().cancelAllInQueue(TypingSendJob.getQueue(threadId));
+
     if (database.isSent(messageId)) {
       log(TAG, "Message " + messageId + " was already sent. Ignoring.");
       return;

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

@@ -15,6 +15,7 @@
 import org.thoughtcrime.securesms.recipients.RecipientUtil;
 import org.thoughtcrime.securesms.util.TextSecurePreferences;
 import org.whispersystems.libsignal.util.guava.Optional;
+import org.whispersystems.signalservice.api.CancelationException;
 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
@@ -39,14 +40,18 @@ public class TypingSendJob extends BaseJob {
 
   public TypingSendJob(long threadId, boolean typing) {
     this(new Job.Parameters.Builder()
-                           .setQueue("TYPING_" + threadId)
+                           .setQueue(getQueue(threadId))
                            .setMaxAttempts(1)
                            .setLifespan(TimeUnit.SECONDS.toMillis(5))
                            .build(),
          threadId,
          typing);
   }
 
+  public static String getQueue(long threadId) {
+    return "TYPING_" + threadId;
+  }
+
   private TypingSendJob(@NonNull Job.Parameters parameters, long threadId, boolean typing) {
     super(parameters);
 
@@ -101,7 +106,16 @@ public void onRun() throws Exception {
     List<Optional<UnidentifiedAccessPair>> unidentifiedAccess = Stream.of(recipients).map(r -> UnidentifiedAccessUtil.getAccessFor(context, r)).toList();
     SignalServiceTypingMessage             typingMessage      = new SignalServiceTypingMessage(typing ? Action.STARTED : Action.STOPPED, System.currentTimeMillis(), groupId);
 
-    messageSender.sendTyping(addresses, unidentifiedAccess, typingMessage);
+    if (isCanceled()) {
+      Log.w(TAG, "Canceled before send!");
+      return;
+    }
+
+    try {
+      messageSender.sendTyping(addresses, unidentifiedAccess, typingMessage, this::isCanceled);
+    } catch (CancelationException e) {
+      Log.w(TAG, "Canceled during send!");
+    }
   }
 
   @Override

app/src/main/java/org/thoughtcrime/securesms/util/concurrent/SignalExecutors.java

@@ -6,9 +6,13 @@
 
 import org.thoughtcrime.securesms.util.LinkedBlockingLifoQueue;
 
+import java.util.Queue;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.LinkedTransferQueue;
+import java.util.concurrent.RejectedExecutionHandler;
+import java.util.concurrent.SynchronousQueue;
 import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
@@ -26,6 +30,44 @@ public static ExecutorService newCachedSingleThreadExecutor(final String name) {
     return executor;
   }
 
+  /**
+   * ThreadPoolExecutor will only create a new thread if the provided queue returns false from
+   * offer(). That means if you give it an unbounded queue, it'll only ever create 1 thread, no
+   * matter how long the queue gets.
+   *
+   * But if you bound the queue and submit more runnables than there are threads, your task is
+   * rejected and throws an exception.
+   *
+   * So we make a queue that will always return false if it's non-empty to ensure new threads get
+   * created. Then, if a task gets rejected, we simply add it to the queue.
+   */
+  public static ExecutorService newCachedBoundedExecutor(final String name, int minThreads, int maxThreads) {
+    ThreadPoolExecutor threadPool = new ThreadPoolExecutor(minThreads,
+                                                           maxThreads,
+                                                           30,
+                                                           TimeUnit.SECONDS,
+                                                           new LinkedBlockingQueue<Runnable>() {
+                                                             @Override
+                                                             public boolean offer(Runnable runnable) {
+                                                               if (isEmpty()) {
+                                                                 return super.offer(runnable);
+                                                               } else {
+                                                                 return false;
+                                                               }
+                                                             }
+                                                           }, new NumberedThreadFactory(name));
+
+    threadPool.setRejectedExecutionHandler((runnable, executor) -> {
+      try {
+        executor.getQueue().put(runnable);
+      } catch (InterruptedException e) {
+        Thread.currentThread().interrupt();
+      }
+    });
+
+    return threadPool;
+  }
+
   /**
    * Returns an executor that prioritizes newer work. This is the opposite of a traditional executor,
    * which processor work in FIFO order.

libsignal/service/src/main/java/org/whispersystems/signalservice/api/CancelationException.java

@@ -0,0 +1,6 @@
+package org.whispersystems.signalservice.api;
+
+import java.io.IOException;
+
+public class CancelationException extends IOException {
+}

libsignal/service/src/main/java/org/whispersystems/signalservice/api/SignalServiceMessageSender.java

@@ -80,6 +80,7 @@
 import org.whispersystems.signalservice.internal.push.exceptions.MismatchedDevicesException;
 import org.whispersystems.signalservice.internal.push.exceptions.StaleDevicesException;
 import org.whispersystems.signalservice.internal.push.http.AttachmentCipherOutputStreamFactory;
+import org.whispersystems.signalservice.internal.push.http.CancelationSignal;
 import org.whispersystems.signalservice.internal.push.http.ResumableUploadSpec;
 import org.whispersystems.signalservice.internal.util.StaticCredentialsProvider;
 import org.whispersystems.signalservice.internal.util.Util;
@@ -191,7 +192,7 @@ public void sendReceipt(SignalServiceAddress recipient,
   {
     byte[] content = createReceiptContent(message);
 
-    sendMessage(recipient, getTargetUnidentifiedAccess(unidentifiedAccess), message.getWhen(), content, false);
+    sendMessage(recipient, getTargetUnidentifiedAccess(unidentifiedAccess), message.getWhen(), content, false, null);
   }
 
   /**
@@ -209,16 +210,17 @@ public void sendTyping(SignalServiceAddress recipient,
   {
     byte[] content = createTypingContent(message);
 
-    sendMessage(recipient, getTargetUnidentifiedAccess(unidentifiedAccess), message.getTimestamp(), content, true);
+    sendMessage(recipient, getTargetUnidentifiedAccess(unidentifiedAccess), message.getTimestamp(), content, true, null);
   }
 
   public void sendTyping(List<SignalServiceAddress>             recipients,
                          List<Optional<UnidentifiedAccessPair>> unidentifiedAccess,
-                         SignalServiceTypingMessage             message)
+                         SignalServiceTypingMessage             message,
+                         CancelationSignal                      cancelationSignal)
       throws IOException
   {
     byte[] content = createTypingContent(message);
-    sendMessage(recipients, getTargetUnidentifiedAccess(unidentifiedAccess), message.getTimestamp(), content, true);
+    sendMessage(recipients, getTargetUnidentifiedAccess(unidentifiedAccess), message.getTimestamp(), content, true, cancelationSignal);
   }
 
 
@@ -235,7 +237,7 @@ public void sendCallMessage(SignalServiceAddress recipient,
       throws IOException, UntrustedIdentityException
   {
     byte[] content = createCallContent(message);
-    sendMessage(recipient, getTargetUnidentifiedAccess(unidentifiedAccess), System.currentTimeMillis(), content, false);
+    sendMessage(recipient, getTargetUnidentifiedAccess(unidentifiedAccess), System.currentTimeMillis(), content, false, null);
   }
 
   /**
@@ -253,11 +255,11 @@ public SendMessageResult sendMessage(SignalServiceAddress             recipient,
   {
     byte[]            content   = createMessageContent(message);
     long              timestamp = message.getTimestamp();
-    SendMessageResult result    = sendMessage(recipient, getTargetUnidentifiedAccess(unidentifiedAccess), timestamp, content, false);
+    SendMessageResult result    = sendMessage(recipient, getTargetUnidentifiedAccess(unidentifiedAccess), timestamp, content, false, null);
 
     if (result.getSuccess() != null && result.getSuccess().isNeedsSync()) {
       byte[] syncMessage = createMultiDeviceSentTranscriptContent(content, Optional.of(recipient), timestamp, Collections.singletonList(result), false);
-      sendMessage(localAddress, Optional.<UnidentifiedAccess>absent(), timestamp, syncMessage, false);
+      sendMessage(localAddress, Optional.<UnidentifiedAccess>absent(), timestamp, syncMessage, false, null);
     }
 
     if (message.isEndSession()) {
@@ -291,7 +293,7 @@ public List<SendMessageResult> sendMessage(List<SignalServiceAddress>
   {
     byte[]                  content            = createMessageContent(message);
     long                    timestamp          = message.getTimestamp();
-    List<SendMessageResult> results            = sendMessage(recipients, getTargetUnidentifiedAccess(unidentifiedAccess), timestamp, content, false);
+    List<SendMessageResult> results            = sendMessage(recipients, getTargetUnidentifiedAccess(unidentifiedAccess), timestamp, content, false, null);
     boolean                 needsSyncInResults = false;
 
     for (SendMessageResult result : results) {
@@ -303,7 +305,7 @@ public List<SendMessageResult> sendMessage(List<SignalServiceAddress>
 
     if (needsSyncInResults || isMultiDevice.get()) {
       byte[] syncMessage = createMultiDeviceSentTranscriptContent(content, Optional.<SignalServiceAddress>absent(), timestamp, results, isRecipientUpdate);
-      sendMessage(localAddress, Optional.<UnidentifiedAccess>absent(), timestamp, syncMessage, false);
+      sendMessage(localAddress, Optional.<UnidentifiedAccess>absent(), timestamp, syncMessage, false, null);
     }
 
     return results;
@@ -347,7 +349,7 @@ public void sendMessage(SignalServiceSyncMessage message, Optional<UnidentifiedA
     long timestamp = message.getSent().isPresent() ? message.getSent().get().getTimestamp()
                                                    : System.currentTimeMillis();
 
-    sendMessage(localAddress, Optional.<UnidentifiedAccess>absent(), timestamp, content, false);
+    sendMessage(localAddress, Optional.<UnidentifiedAccess>absent(), timestamp, content, false, null);
   }
 
   public void setSoTimeoutMillis(long soTimeoutMillis) {
@@ -478,11 +480,11 @@ private void sendMessage(VerifiedMessage message, Optional<UnidentifiedAccessPai
                                      .build()
                                      .toByteArray();
 
-    SendMessageResult result = sendMessage(message.getDestination(), getTargetUnidentifiedAccess(unidentifiedAccess), message.getTimestamp(), content, false);
+    SendMessageResult result = sendMessage(message.getDestination(), getTargetUnidentifiedAccess(unidentifiedAccess), message.getTimestamp(), content, false, null);
 
     if (result.getSuccess().isNeedsSync()) {
       byte[] syncMessage = createMultiDeviceVerifiedContent(message, nullMessage.toByteArray());
-      sendMessage(localAddress, Optional.<UnidentifiedAccess>absent(), message.getTimestamp(), syncMessage, false);
+      sendMessage(localAddress, Optional.<UnidentifiedAccess>absent(), message.getTimestamp(), syncMessage, false, null);
     }
   }
 
@@ -1200,7 +1202,8 @@ private List<SendMessageResult> sendMessage(List<SignalServiceAddress>         r
                                               List<Optional<UnidentifiedAccess>> unidentifiedAccess,
                                               long                               timestamp,
                                               byte[]                             content,
-                                              boolean                            online)
+                                              boolean                            online,
+                                              CancelationSignal                  cancelationSignal)
       throws IOException
   {
     long                                   startTime                  = System.currentTimeMillis();
@@ -1211,7 +1214,7 @@ private List<SendMessageResult> sendMessage(List<SignalServiceAddress>         r
     while (recipientIterator.hasNext()) {
       SignalServiceAddress         recipient = recipientIterator.next();
       Optional<UnidentifiedAccess> access    = unidentifiedAccessIterator.next();
-      futureResults.add(executor.submit(() -> sendMessage(recipient, access, timestamp, content, online)));
+      futureResults.add(executor.submit(() -> sendMessage(recipient, access, timestamp, content, online, cancelationSignal)));
     }
 
     List<SendMessageResult> results = new ArrayList<>(futureResults.size());
@@ -1247,14 +1250,24 @@ private SendMessageResult sendMessage(SignalServiceAddress         recipient,
                                         Optional<UnidentifiedAccess> unidentifiedAccess,
                                         long                         timestamp,
                                         byte[]                       content,
-                                        boolean                      online)
+                                        boolean                      online,
+                                        CancelationSignal            cancelationSignal)
       throws UntrustedIdentityException, IOException
   {
     long startTime = System.currentTimeMillis();
 
     for (int i = 0; i < RETRY_COUNT; i++) {
+      if (cancelationSignal != null && cancelationSignal.isCanceled()) {
+        throw new CancelationException();
+      }
+
       try {
-        OutgoingPushMessageList            messages         = getEncryptedMessages(socket, recipient, unidentifiedAccess, timestamp, content, online);
+        OutgoingPushMessageList messages = getEncryptedMessages(socket, recipient, unidentifiedAccess, timestamp, content, online);
+
+        if (cancelationSignal != null && cancelationSignal.isCanceled()) {
+          throw new CancelationException();
+        }
+
         Optional<SignalServiceMessagePipe> pipe             = this.pipe.get();
         Optional<SignalServiceMessagePipe> unidentifiedPipe = this.unidentifiedPipe.get();
 
@@ -1278,6 +1291,10 @@ private SendMessageResult sendMessage(SignalServiceAddress         recipient,
           }
         }
 
+        if (cancelationSignal != null && cancelationSignal.isCanceled()) {
+          throw new CancelationException();
+        }
+
         SendMessageResponse response = socket.sendMessage(messages, unidentifiedAccess);
 
         Log.d(TAG, "[sendMessage] Completed over REST in " + (System.currentTimeMillis() - startTime) + " ms and " + (i + 1) + " attempt(s)");