re-add a "sync check" before accepting/processing remote transactions, but only check that we have completed an initial sync and have a chain head (#4035)

Signed-off-by: garyschulte <garyschulte@gmail.com>

besu/src/main/java/org/hyperledger/besu/controller/BesuControllerBuilder.java

@@ -379,7 +379,7 @@ public abstract class BesuControllerBuilder implements MiningParameterOverrides
             ethContext,
             clock,
             metricsSystem,
-            syncState,
+            syncState::isInitialSyncPhaseDone,
             miningParameters,
             transactionPoolConfiguration);
 

besu/src/test/java/org/hyperledger/besu/services/BesuEventsImplTest.java

@@ -146,7 +146,7 @@ public class BesuEventsImplTest {
             mockEthContext,
             TestClock.fixed(),
             new NoOpMetricsSystem(),
-            syncState,
+            syncState::isInitialSyncPhaseDone,
             new MiningParameters.Builder().minTransactionGasPrice(Wei.ZERO).build(),
             txPoolConfig);
 

ethereum/core/src/main/java/org/hyperledger/besu/ethereum/transaction/TransactionInvalidReason.java

@@ -28,6 +28,7 @@ public enum TransactionInvalidReason {
   INTRINSIC_GAS_EXCEEDS_GAS_LIMIT,
   EXCEEDS_BLOCK_GAS_LIMIT,
   TX_SENDER_NOT_AUTHORIZED,
+  CHAIN_HEAD_NOT_AVAILABLE,
   CHAIN_HEAD_WORLD_STATE_NOT_AVAILABLE,
   EXCEEDS_PER_TRANSACTION_GAS_LIMIT,
   INVALID_TRANSACTION_FORMAT,

ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/transactions/NewPooledTransactionHashesMessageProcessor.java

@@ -22,7 +22,6 @@ import org.hyperledger.besu.ethereum.eth.manager.EthContext;
 import org.hyperledger.besu.ethereum.eth.manager.EthPeer;
 import org.hyperledger.besu.ethereum.eth.manager.task.BufferedGetPooledTransactionsFromPeerFetcher;
 import org.hyperledger.besu.ethereum.eth.messages.NewPooledTransactionHashesMessage;
-import org.hyperledger.besu.ethereum.eth.sync.state.SyncState;
 import org.hyperledger.besu.ethereum.p2p.rlpx.wire.messages.DisconnectMessage.DisconnectReason;
 import org.hyperledger.besu.ethereum.rlp.RLPException;
 import org.hyperledger.besu.metrics.BesuMetricCategory;
@@ -34,6 +33,7 @@ import java.time.Duration;
 import java.time.Instant;
 import java.util.List;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.function.Supplier;
 import java.util.stream.Collectors;
 
 import org.slf4j.Logger;
@@ -55,6 +55,7 @@ public class NewPooledTransactionHashesMessageProcessor {
   private final TransactionPoolConfiguration transactionPoolConfiguration;
   private final EthContext ethContext;
   private final MetricsSystem metricsSystem;
+  private final Supplier<Boolean> shouldProcessMessages;
 
   public NewPooledTransactionHashesMessageProcessor(
       final PeerTransactionTracker transactionTracker,
@@ -62,12 +63,13 @@ public class NewPooledTransactionHashesMessageProcessor {
       final TransactionPoolConfiguration transactionPoolConfiguration,
       final EthContext ethContext,
       final MetricsSystem metricsSystem,
-      final SyncState syncState) {
+      final Supplier<Boolean> shouldProcessMessages) {
     this.transactionTracker = transactionTracker;
     this.transactionPool = transactionPool;
     this.transactionPoolConfiguration = transactionPoolConfiguration;
     this.ethContext = ethContext;
     this.metricsSystem = metricsSystem;
+    this.shouldProcessMessages = shouldProcessMessages;
     this.totalSkippedNewPooledTransactionHashesMessageCounter =
         new RunnableCounter(
             metricsSystem.createCounter(
@@ -108,6 +110,7 @@ public class NewPooledTransactionHashesMessageProcessor {
           incomingTransactionHashes::size,
           incomingTransactionHashes::toString);
 
+      if (shouldProcessMessages.get()) {
         final BufferedGetPooledTransactionsFromPeerFetcher bufferedTask =
             scheduledTasks.computeIfAbsent(
                 peer,
@@ -126,7 +129,7 @@ public class NewPooledTransactionHashesMessageProcessor {
             incomingTransactionHashes.stream()
                 .filter(hash -> transactionPool.getTransactionByHash(hash).isEmpty())
                 .collect(Collectors.toList()));
-
+      }
     } catch (final RLPException ex) {
       if (peer != null) {
         LOG.debug(

ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/transactions/TransactionPool.java

@@ -17,7 +17,9 @@ package org.hyperledger.besu.ethereum.eth.transactions;
 import static java.util.Collections.singletonList;
 import static java.util.Optional.ofNullable;
 import static org.hyperledger.besu.ethereum.eth.transactions.sorter.AbstractPendingTransactionsSorter.TransactionAddedStatus.ADDED;
+import static org.hyperledger.besu.ethereum.transaction.TransactionInvalidReason.CHAIN_HEAD_NOT_AVAILABLE;
 import static org.hyperledger.besu.ethereum.transaction.TransactionInvalidReason.CHAIN_HEAD_WORLD_STATE_NOT_AVAILABLE;
+import static org.hyperledger.besu.util.Slf4jLambdaHelper.traceLambda;
 
 import org.hyperledger.besu.datatypes.Hash;
 import org.hyperledger.besu.datatypes.Wei;
@@ -213,7 +215,16 @@ public class TransactionPool implements BlockAddedObserver {
 
   private ValidationResult<TransactionInvalidReason> validateTransaction(
       final Transaction transaction, final boolean isLocal) {
-    final BlockHeader chainHeadBlockHeader = getChainHeadBlockHeader();
+
+    final BlockHeader chainHeadBlockHeader = getChainHeadBlockHeader().orElse(null);
+    if (chainHeadBlockHeader == null) {
+      traceLambda(
+          LOG,
+          "rejecting transaction {} due to chain head not available yet",
+          () -> transaction.getHash());
+      return ValidationResult.invalid(CHAIN_HEAD_NOT_AVAILABLE);
+    }
+
     final FeeMarket feeMarket =
         protocolSchedule.getByBlockNumber(chainHeadBlockHeader.getNumber()).getFeeMarket();
 
@@ -291,17 +302,20 @@ public class TransactionPool implements BlockAddedObserver {
     return pendingTransactions.getTransactionByHash(hash);
   }
 
-  private BlockHeader getChainHeadBlockHeader() {
+  private Optional<BlockHeader> getChainHeadBlockHeader() {
     final MutableBlockchain blockchain = protocolContext.getBlockchain();
-    return blockchain.getBlockHeader(blockchain.getChainHeadHash()).get();
+    return blockchain.getBlockHeader(blockchain.getChainHeadHash());
   }
 
   private Wei minTransactionGasPrice(final Transaction transaction) {
-    final BlockHeader chainHeadBlockHeader = getChainHeadBlockHeader();
-    return protocolSchedule
+    return getChainHeadBlockHeader()
+        .map(
+            chainHeadBlockHeader ->
+                protocolSchedule
                     .getByBlockNumber(chainHeadBlockHeader.getNumber())
                     .getFeeMarket()
-        .minTransactionPriceInNextBlock(transaction, chainHeadBlockHeader::getBaseFee);
+                    .minTransactionPriceInNextBlock(transaction, chainHeadBlockHeader::getBaseFee))
+        .orElse(Wei.ZERO);
   }
 
   public interface TransactionBatchAddedListener {

ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/transactions/TransactionPoolFactory.java

@@ -19,7 +19,6 @@ import org.hyperledger.besu.ethereum.core.MiningParameters;
 import org.hyperledger.besu.ethereum.eth.manager.EthContext;
 import org.hyperledger.besu.ethereum.eth.messages.EthPV62;
 import org.hyperledger.besu.ethereum.eth.messages.EthPV65;
-import org.hyperledger.besu.ethereum.eth.sync.state.SyncState;
 import org.hyperledger.besu.ethereum.eth.transactions.sorter.AbstractPendingTransactionsSorter;
 import org.hyperledger.besu.ethereum.eth.transactions.sorter.BaseFeePendingTransactionsSorter;
 import org.hyperledger.besu.ethereum.eth.transactions.sorter.GasPricePendingTransactionsSorter;
@@ -29,6 +28,7 @@ import org.hyperledger.besu.ethereum.mainnet.feemarket.FeeMarket;
 import org.hyperledger.besu.plugin.services.MetricsSystem;
 
 import java.time.Clock;
+import java.util.function.Supplier;
 
 public class TransactionPoolFactory {
 
@@ -38,7 +38,7 @@ public class TransactionPoolFactory {
       final EthContext ethContext,
       final Clock clock,
       final MetricsSystem metricsSystem,
-      final SyncState syncState,
+      final Supplier<Boolean> shouldProcessTransactions,
       final MiningParameters miningParameters,
       final TransactionPoolConfiguration transactionPoolConfiguration) {
 
@@ -58,7 +58,7 @@ public class TransactionPoolFactory {
         protocolContext,
         ethContext,
         metricsSystem,
-        syncState,
+        shouldProcessTransactions,
         miningParameters,
         transactionPoolConfiguration,
         pendingTransactions,
@@ -72,7 +72,7 @@ public class TransactionPoolFactory {
       final ProtocolContext protocolContext,
       final EthContext ethContext,
       final MetricsSystem metricsSystem,
-      final SyncState syncState,
+      final Supplier<Boolean> shouldProcessTransactions,
       final MiningParameters miningParameters,
       final TransactionPoolConfiguration transactionPoolConfiguration,
       final AbstractPendingTransactionsSorter pendingTransactions,
@@ -110,7 +110,7 @@ public class TransactionPoolFactory {
                 transactionPoolConfiguration,
                 ethContext,
                 metricsSystem,
-                syncState),
+                shouldProcessTransactions),
             transactionPoolConfiguration.getTxMessageKeepAliveSeconds());
     ethContext
         .getEthMessages()

ethereum/eth/src/test/java/org/hyperledger/besu/ethereum/eth/manager/EthProtocolManagerTest.java

@@ -56,7 +56,6 @@ import org.hyperledger.besu.ethereum.eth.messages.NodeDataMessage;
 import org.hyperledger.besu.ethereum.eth.messages.ReceiptsMessage;
 import org.hyperledger.besu.ethereum.eth.messages.StatusMessage;
 import org.hyperledger.besu.ethereum.eth.messages.TransactionsMessage;
-import org.hyperledger.besu.ethereum.eth.sync.state.SyncState;
 import org.hyperledger.besu.ethereum.eth.transactions.TransactionPool;
 import org.hyperledger.besu.ethereum.eth.transactions.TransactionPoolConfiguration;
 import org.hyperledger.besu.ethereum.eth.transactions.TransactionPoolFactory;
@@ -1052,7 +1051,7 @@ public final class EthProtocolManagerTest {
           ethManager.ethContext(),
           TestClock.fixed(),
           metricsSystem,
-          mock(SyncState.class),
+          () -> true,
           new MiningParameters.Builder().minTransactionGasPrice(Wei.ZERO).build(),
           TransactionPoolConfiguration.DEFAULT);
 

ethereum/eth/src/test/java/org/hyperledger/besu/ethereum/eth/manager/ethtaskutils/AbstractMessageTaskTest.java

@@ -99,7 +99,7 @@ public abstract class AbstractMessageTaskTest<T, R> {
             ethContext,
             TestClock.fixed(),
             metricsSystem,
-            syncState,
+            syncState::isInitialSyncPhaseDone,
             new MiningParameters.Builder().minTransactionGasPrice(Wei.ONE).build(),
             TransactionPoolConfiguration.DEFAULT);
     ethProtocolManager =

ethereum/eth/src/test/java/org/hyperledger/besu/ethereum/eth/transactions/NewPooledTransactionHashesMessageProcessorTest.java

@@ -55,9 +55,9 @@ public class NewPooledTransactionHashesMessageProcessorTest {
   @Mock private TransactionPoolConfiguration transactionPoolConfiguration;
   @Mock private PeerTransactionTracker transactionTracker;
   @Mock private EthPeer peer1;
-  @Mock private SyncState syncState;
   @Mock private EthContext ethContext;
   @Mock private EthScheduler ethScheduler;
+  @Mock private SyncState syncState;
 
   private final BlockDataGenerator generator = new BlockDataGenerator();
   private final Hash hash1 = generator.transaction().getHash();
@@ -72,7 +72,7 @@ public class NewPooledTransactionHashesMessageProcessorTest {
     metricsSystem = new StubMetricsSystem();
     when(transactionPoolConfiguration.getEth65TrxAnnouncedBufferingPeriod())
         .thenReturn(Duration.ofMillis(500));
-
+    when(syncState.isInitialSyncPhaseDone()).thenReturn(true);
     messageHandler =
         new NewPooledTransactionHashesMessageProcessor(
             transactionTracker,
@@ -80,7 +80,7 @@ public class NewPooledTransactionHashesMessageProcessorTest {
             transactionPoolConfiguration,
             ethContext,
             metricsSystem,
-            syncState);
+            syncState::isInitialSyncPhaseDone);
     when(ethContext.getScheduler()).thenReturn(ethScheduler);
   }
 
@@ -187,4 +187,17 @@ public class NewPooledTransactionHashesMessageProcessorTest {
     verify(ethScheduler, times(1))
         .scheduleFutureTask(any(FetcherCreatorTask.class), any(Duration.class));
   }
+
+  @Test
+  public void shouldNotAddTransactionsWhenDisabled() {
+
+    when(syncState.isInitialSyncPhaseDone()).thenReturn(false);
+    messageHandler.processNewPooledTransactionHashesMessage(
+        peer1,
+        NewPooledTransactionHashesMessage.create(asList(hash1, hash2, hash3)),
+        now(),
+        ofMinutes(1));
+
+    verifyNoInteractions(transactionPool);
+  }
 }

ethereum/eth/src/test/java/org/hyperledger/besu/ethereum/eth/transactions/TestNode.java

@@ -136,7 +136,7 @@ public class TestNode implements Closeable {
             ethContext,
             TestClock.fixed(),
             metricsSystem,
-            syncState,
+            syncState::isInitialSyncPhaseDone,
             new MiningParameters.Builder().minTransactionGasPrice(Wei.ZERO).build(),
             TransactionPoolConfiguration.DEFAULT);
 

ethereum/eth/src/test/java/org/hyperledger/besu/ethereum/eth/transactions/TransactionPoolFactoryTest.java

@@ -38,7 +38,6 @@ import org.hyperledger.besu.ethereum.eth.manager.EthProtocolManager;
 import org.hyperledger.besu.ethereum.eth.manager.EthScheduler;
 import org.hyperledger.besu.ethereum.eth.manager.ForkIdManager;
 import org.hyperledger.besu.ethereum.eth.manager.RespondingEthPeer;
-import org.hyperledger.besu.ethereum.eth.sync.state.SyncState;
 import org.hyperledger.besu.ethereum.eth.transactions.sorter.GasPricePendingTransactionsSorter;
 import org.hyperledger.besu.ethereum.mainnet.ProtocolSchedule;
 import org.hyperledger.besu.ethereum.p2p.rlpx.wire.messages.DisconnectMessage;
@@ -70,7 +69,6 @@ public class TransactionPoolFactoryTest {
     when(ethContext.getEthPeers()).thenReturn(ethPeers);
     final EthScheduler ethScheduler = mock(EthScheduler.class);
     when(ethContext.getScheduler()).thenReturn(ethScheduler);
-    final SyncState state = mock(SyncState.class);
     final GasPricePendingTransactionsSorter pendingTransactions =
         mock(GasPricePendingTransactionsSorter.class);
     final PeerTransactionTracker peerTransactionTracker = mock(PeerTransactionTracker.class);
@@ -85,7 +83,7 @@ public class TransactionPoolFactoryTest {
             context,
             ethContext,
             new NoOpMetricsSystem(),
-            state,
+            () -> true,
             new MiningParameters.Builder().minTransactionGasPrice(Wei.ONE).build(),
             ImmutableTransactionPoolConfiguration.of(
                 1,

ethereum/retesteth/src/main/java/org/hyperledger/besu/ethereum/retesteth/RetestethContext.java

@@ -206,7 +206,7 @@ public class RetestethContext {
             ethContext,
             retestethClock,
             metricsSystem,
-            syncState,
+            syncState::isInitialSyncPhaseDone,
             new MiningParameters.Builder().minTransactionGasPrice(Wei.ZERO).build(),
             transactionPoolConfiguration);