fix invalid signature when sign offer re-requested after timeout

core/src/main/java/haveno/core/offer/OpenOfferManager.java

@@ -230,9 +230,12 @@ public class OpenOfferManager implements PeerManager.Listener, DecryptedDirectMe
         offerBookService.addOfferBookChangedListener(new OfferBookChangedListener() {
             @Override
             public void onAdded(Offer offer) {
+
+                // cancel offer if reserved funds spent
                 Optional<OpenOffer> openOfferOptional = getOpenOfferById(offer.getId());
                 if (openOfferOptional.isPresent() && openOfferOptional.get().getState() != OpenOffer.State.RESERVED && offer.isReservedFundsSpent()) {
-                    closeOpenOffer(offer);
+                    log.warn("Canceling open offer because reserved funds have been spent, offerId={}, state={}", offer.getId(), openOfferOptional.get().getState());
+                    cancelOpenOffer(openOfferOptional.get(), null, null);
                 }
             }
             @Override
@@ -552,7 +555,7 @@ public class OpenOfferManager implements PeerManager.Listener, DecryptedDirectMe
                     if (openOffer.isCanceled()) latch.countDown();
                     else {
                         log.warn("Error processing unposted offer {}: {}", openOffer.getId(), errorMessage);
-                        doCancel(openOffer);
+                        doCancelOffer(openOffer);
                         offer.setErrorMessage(errorMessage);
                         latch.countDown();
                         errorMessageHandler.handleErrorMessage(errorMessage);
@@ -622,19 +625,19 @@ public class OpenOfferManager implements PeerManager.Listener, DecryptedDirectMe
                 offerBookService.removeOffer(openOffer.getOffer().getOfferPayload(),
                         () -> {
                             ThreadUtils.submitToPool(() -> { // TODO: this runs off thread and then shows popup when done. should show overlay spinner until done
-                                doCancel(openOffer);
+                                doCancelOffer(openOffer);
-                                resultHandler.handleResult();
+                                if (resultHandler != null) resultHandler.handleResult();
                             });
                         },
                         errorMessageHandler);
             } else {
                 ThreadUtils.submitToPool(() -> {
-                    doCancel(openOffer);
+                    doCancelOffer(openOffer);
-                    resultHandler.handleResult();
+                    if (resultHandler != null) resultHandler.handleResult();
                 });
             }
         } else {
-            errorMessageHandler.handleErrorMessage("You can't remove an offer that is currently edited.");
+            if (errorMessageHandler != null) errorMessageHandler.handleErrorMessage("You can't remove an offer that is currently edited.");
         }
     }
 
@@ -708,7 +711,7 @@ public class OpenOfferManager implements PeerManager.Listener, DecryptedDirectMe
     }
 
     // remove open offer which thaws its key images
-    private void doCancel(@NotNull OpenOffer openOffer) {
+    private void doCancelOffer(@NotNull OpenOffer openOffer) {
         Offer offer = openOffer.getOffer();
         offer.setState(Offer.State.REMOVED);
         openOffer.setState(OpenOffer.State.CANCELED);
@@ -874,7 +877,7 @@ public class OpenOfferManager implements PeerManager.Listener, DecryptedDirectMe
                             if (scheduledOffer.getNumProcessingAttempts() >= MAX_PROCESS_ATTEMPTS) {
                                 log.warn("Offer canceled after {} attempts, offerId={}, error={}", scheduledOffer.getNumProcessingAttempts(), scheduledOffer.getId(), errorMessage);
                                 HavenoUtils.havenoSetup.getTopErrorMsg().set("Offer canceled after " + scheduledOffer.getNumProcessingAttempts() + " attempts. Please switch to a better Monero connection and try again.\n\nOffer ID: " + scheduledOffer.getId() + "\nError: " + errorMessage);
-                                doCancel(scheduledOffer);
+                                doCancelOffer(scheduledOffer);
                             }
                             errorMessages.add(errorMessage);
                         }
@@ -1754,7 +1757,7 @@ public class OpenOfferManager implements PeerManager.Listener, DecryptedDirectMe
             } else {
 
                 // cancel and recreate offer
-                doCancel(openOffer);
+                doCancelOffer(openOffer);
                 Offer updatedOffer = new Offer(openOffer.getOffer().getOfferPayload());
                 updatedOffer.setPriceFeedService(priceFeedService);
                 OpenOffer updatedOpenOffer = new OpenOffer(updatedOffer, openOffer.getTriggerPrice());
@@ -1770,7 +1773,7 @@ public class OpenOfferManager implements PeerManager.Listener, DecryptedDirectMe
                     }, (errorMessage) -> {
                         if (!updatedOpenOffer.isCanceled()) {
                             log.warn("Error reposting offer {}: {}", updatedOpenOffer.getId(), errorMessage);
-                            doCancel(updatedOpenOffer);
+                            doCancelOffer(updatedOpenOffer);
                             updatedOffer.setErrorMessage(errorMessage);
                         }
                         latch.countDown();

core/src/main/java/haveno/core/offer/placeoffer/PlaceOfferProtocol.java

@@ -94,11 +94,18 @@ public class PlaceOfferProtocol {
         log.debug("handleSignOfferResponse() " + model.getOpenOffer().getOffer().getId());
         model.setSignOfferResponse(response);
 
+        // ignore if unexpected signer
         if (!model.getOpenOffer().getOffer().getOfferPayload().getArbitratorSigner().equals(sender)) {
             log.warn("Ignoring sign offer response from different sender");
             return;
         }
 
+        // ignore if payloads have different timestamps
+        if (model.getOpenOffer().getOffer().getOfferPayload().getDate() != response.getSignedOfferPayload().getDate()) {
+            log.warn("Ignoring sign offer response from arbitrator for offer payload with different timestamp");
+            return;
+        }
+
         // ignore if timer already stopped
         if (timeoutTimer == null) {
             log.warn("Ignoring sign offer response from arbitrator because timeout has expired for offer " + model.getOpenOffer().getOffer().getId());

core/src/main/java/haveno/core/offer/placeoffer/tasks/MakerProcessSignOfferResponse.java

@@ -42,11 +42,14 @@ public class MakerProcessSignOfferResponse extends Task<PlaceOfferModel> {
             
             // validate arbitrator signature
             if (!HavenoUtils.isArbitratorSignatureValid(model.getSignOfferResponse().getSignedOfferPayload(), arbitrator)) {
-                throw new RuntimeException("Offer payload has invalid arbitrator signature");
+                throw new RuntimeException("Arbitrator's offer payload has invalid signature, offerId=" + offer.getId());
             }
             
             // set arbitrator signature for maker's offer
             offer.getOfferPayload().setArbitratorSignature(model.getSignOfferResponse().getSignedOfferPayload().getArbitratorSignature());
+            if (!HavenoUtils.isArbitratorSignatureValid(offer.getOfferPayload(), arbitrator)) {
+                throw new RuntimeException("Maker's offer payload has invalid signature, offerId=" + offer.getId());
+            }
             offer.setState(Offer.State.AVAILABLE);
             complete();
         } catch (Exception e) {

core/src/main/java/haveno/core/trade/TradeManager.java

@@ -364,7 +364,7 @@ public class TradeManager implements PersistedDataHost, DecryptedDirectMessageLi
                 trade.onShutDownStarted();
             } catch (Exception e) {
                 if (e.getMessage() != null && e.getMessage().contains("Connection reset")) return; // expected if shut down with ctrl+c
-                log.warn("Error notifying {} {} that shut down started {}", getClass().getSimpleName(), trade.getId());
+                log.warn("Error notifying {} {} that shut down started {}", trade.getClass().getSimpleName(), trade.getId());
                 e.printStackTrace();
             }
         });

core/src/main/java/haveno/core/trade/protocol/tasks/ArbitratorProcessDepositRequest.java

@@ -221,7 +221,7 @@ public class ArbitratorProcessDepositRequest extends TradeTask {
         processModel.getP2PService().sendEncryptedDirectMessage(nodeAddress, pubKeyRing, response, new SendDirectMessageListener() {
             @Override
             public void onArrived() {
-                log.info("{} arrived: trading peer={}; offerId={}; uid={}", response.getClass().getSimpleName(), nodeAddress, trade.getId());
+                log.info("{} arrived: trading peer={}; offerId={}; uid={}", response.getClass().getSimpleName(), nodeAddress, trade.getId(), trade.getUid());
             }
             @Override
             public void onFault(String errorMessage) {