/// <summary>
/// Constructs and instance of memory pool behavior.
/// Constructs a logger instance for memory pool behavior object.
/// </summary>
/// <param name="validator">Memory pool validator for validating transactions.</param>
/// <param name="manager">Memory pool manager for managing the memory pool.</param>
/// <param name="orphans">Memory pool orphans for managing orphan transactions.</param>
/// <param name="connectionManager">Connection manager for managing peer connections.</param>
/// <param name="initialBlockDownloadState">Provider of IBD state.</param>
/// <param name="signals">Peer notifications available to subscribe to.</param>
/// <param name="loggerFactory">Logger factory for creating logger.</param>
public MempoolBehavior(
IMempoolValidator validator,
MempoolManager manager,
MempoolOrphans orphans,
IConnectionManager connectionManager,
IInitialBlockDownloadState initialBlockDownloadState,
Signals.Signals signals,
ILoggerFactory loggerFactory)
: this(validator, manager, orphans, connectionManager, initialBlockDownloadState, signals, loggerFactory.CreateLogger(typeof(MempoolBehavior).FullName))
{
}
/// <summary>
/// Constructs a wallet fee policy.
/// </summary>
/// <param name="blockPolicyEstimator">Block policy estimator.</param>
/// <param name="mempoolValidator">Memory pool validator.</param>
/// <param name="mempool">Memory pool.</param>
/// <param name="network">Network node is running on.</param>
/// <param name="nodeSettings">Settings for the the node.</param>
public WalletFeePolicy(BlockPolicyEstimator blockPolicyEstimator, IMempoolValidator mempoolValidator, TxMempool mempool, Network network, NodeSettings nodeSettings)
{
this.blockPolicyEstimator = blockPolicyEstimator;
this.mempoolValidator = mempoolValidator;
this.mempool = mempool;
this.minTxFee = nodeSettings.MinTxFeeRate;
this.fallbackFee = nodeSettings.FallbackTxFeeRate;
this.payTxFee = new FeeRate(0);
this.maxTxFee = new Money(0.1M, MoneyUnit.BTC);
this.minRelayTxFee = nodeSettings.MinRelayTxFeeRate;
}
public BlocksDisconnectedSignaled(
ITxMempool mempool,
IMempoolValidator mempoolValidator,
MempoolSchedulerLock mempoolLock,
ILoggerFactory loggerFactory,
ISignals signals)
{
this.mempool = mempool;
this.mempoolValidator = mempoolValidator;
this.mempoolLock = mempoolLock;
this.signals = signals;
this.logger = loggerFactory.CreateLogger(this.GetType().FullName);
}
public SignedMultisigTransactionBroadcasterTests()
{
this.loggerFactory = Substitute.For <ILoggerFactory>();
this.logger = Substitute.For <ILogger>();
this.federationGatewaySettings = Substitute.For <IFederationGatewaySettings>();
this.loggerFactory.CreateLogger(null).ReturnsForAnyArgs(this.logger);
this.leaderReceiverSubscription = Substitute.For <IDisposable>();
this.store = Substitute.For <ICrossChainTransferStore>();
this.broadcasterManager = Substitute.For <IBroadcasterManager>();
this.asyncProvider = Substitute.For <IAsyncProvider>();
this.nodeLifetime = Substitute.For <INodeLifetime>();
this.ibdState = Substitute.For <IInitialBlockDownloadState>();
this.federationWalletManager = Substitute.For <IFederationWalletManager>();
this.federationWalletManager.IsFederationWalletActive().Returns(true);
// Setup MempoolManager.
this.dateTimeProvider = Substitute.For <IDateTimeProvider>();
this.nodeSettings = new NodeSettings(networksSelector: CirrusNetwork.NetworksSelector, protocolVersion: NBitcoin.Protocol.ProtocolVersion.ALT_PROTOCOL_VERSION);
this.mempoolSettings = new MempoolSettings(this.nodeSettings)
{
MempoolExpiry = MempoolValidator.DefaultMempoolExpiry
};
this.blockPolicyEstimator = new BlockPolicyEstimator(
this.mempoolSettings,
this.loggerFactory,
this.nodeSettings);
this.txMempool = new TxMempool(
this.dateTimeProvider,
this.blockPolicyEstimator,
this.loggerFactory,
this.nodeSettings);
this.mempoolValidator = Substitute.For <IMempoolValidator>();
this.mempoolPersistence = Substitute.For <IMempoolPersistence>();
this.coinView = Substitute.For <ICoinView>();
this.mempoolManager = new MempoolManager(
new MempoolSchedulerLock(),
this.txMempool,
this.mempoolValidator,
this.dateTimeProvider,
this.mempoolSettings,
this.mempoolPersistence,
this.coinView,
this.loggerFactory,
this.nodeSettings.Network);
}
public async void AcceptToMemoryPool_TxAncestorsConflictSpend_ReturnsFalseAsync()
{
// TODO: Execute failure cases for CheckAncestors
// - conflicting spend transaction
string dataDir = GetTestDirectoryPath(this);
var miner = new BitcoinSecret(new Key(), Network.RegTest);
ITestChainContext context = await TestChainFactory.CreateAsync(Network.RegTest, miner.PubKey.Hash.ScriptPubKey, dataDir).ConfigureAwait(false);
IMempoolValidator validator = context.MempoolValidator;
var bob = new BitcoinSecret(new Key(), Network.RegTest);
var txBuilder = new TransactionBuilder(Network.RegTest);
//Create Coin from first tx on chain
var coin = new Coin(context.SrcTxs[0].GetHash(), 0, context.SrcTxs[0].TotalOut, PayToPubkeyHashTemplate.Instance.GenerateScriptPubKey(miner.PubKey));
//Send 10 to Bob and return the rest as change to miner
Transaction originalTx = txBuilder
.AddCoins(coin)
.AddKeys(miner)
.Send(bob, "10.00")
.SendFees("0.001")
.SetChange(miner)
.BuildTransaction(true);
var state = new MempoolValidationState(false);
//Mempool should accept it, there's nothing wrong
Assert.True(await validator.AcceptToMemoryPool(state, originalTx).ConfigureAwait(false), $"Transaction: {nameof(originalTx)} failed mempool validation.");
//Create second transaction spending the same coin
Transaction conflictingTx = txBuilder
.AddCoins(coin)
.AddKeys(miner)
.Send(bob, "10.00")
.SendFees("0.001")
.SetChange(miner)
.BuildTransaction(true);
//Mempool should reject the second transaction
Assert.False(await validator.AcceptToMemoryPool(state, conflictingTx).ConfigureAwait(false), $"Transaction: {nameof(conflictingTx)} should have failed mempool validation.");
Directory.Delete(dataDir, true);
}
/// <summary>
/// Constructs an instance of a memory pool manager object.
/// </summary>
/// <param name="mempoolLock">A lock for managing asynchronous access to memory pool.</param>
/// <param name="memPool">Transaction memory pool for managing transactions in the memory pool.</param>
/// <param name="validator">Memory pool validator for validating transactions.</param>
/// <param name="orphans">Memory pool orphans for managing orphan transactions.</param>
/// <param name="dateTimeProvider">Date and time information provider.</param>
/// <param name="nodeArgs">Settings from the node.</param>
/// <param name="mempoolPersistence">Memory pool persistence methods for loading and saving from storage.</param>
/// <param name="loggerFactory">Logger factory for creating instance logger.</param>
public MempoolManager(
MempoolAsyncLock mempoolLock,
TxMempool memPool,
IMempoolValidator validator,
MempoolOrphans orphans,
IDateTimeProvider dateTimeProvider,
NodeSettings nodeArgs,
IMempoolPersistence mempoolPersistence,
ILoggerFactory loggerFactory)
{
this.MempoolLock = mempoolLock;
this.memPool = memPool;
this.DateTimeProvider = dateTimeProvider;
this.NodeArgs = nodeArgs;
this.Orphans = orphans;
this.Validator = validator;
this.mempoolPersistence = mempoolPersistence;
this.mempoolLogger = loggerFactory.CreateLogger(this.GetType().FullName);
}
public async Task AcceptToMemoryPool_WithSegWitValidTxns_IsSuccessfullAsync()
{
string dataDir = Path.Combine("TestData", nameof(MempoolValidatorTest), nameof(this.AcceptToMemoryPool_WithSegWitValidTxns_IsSuccessfullAsync));
Directory.CreateDirectory(dataDir);
BitcoinSecret miner = new BitcoinSecret(new Key(), Network.PurpleRegTest);
ITestChainContext context = await TestChainFactory.CreateAsync(Network.PurpleRegTest, miner.PubKey.ScriptPubKey.WitHash.ScriptPubKey.Hash.ScriptPubKey, dataDir);
IMempoolValidator validator = context.MempoolValidator;
Assert.NotNull(validator);
BitcoinSecret bob = new BitcoinSecret(new Key(), Network.PurpleRegTest);
// Fund Bob
// 50 Coins come from first tx on chain - send bob 42 and change back to miner
ScriptCoin witnessCoin = new ScriptCoin(context.SrcTxs[0].GetHash(), 0, context.SrcTxs[0].TotalOut, miner.PubKey.ScriptPubKey.WitHash.ScriptPubKey.Hash.ScriptPubKey, miner.PubKey.ScriptPubKey);
TransactionBuilder txBuilder = new TransactionBuilder();
Transaction p2shOverp2wpkh = txBuilder
.AddCoins(witnessCoin)
.AddKeys(miner)
.Send(bob, "42.00")
.SendFees("0.001")
.SetChange(miner)
.BuildTransaction(true);
Assert.True(txBuilder.Verify(p2shOverp2wpkh)); //check fully signed
// remove witness data from tx
Transaction noWitTx = p2shOverp2wpkh.WithOptions(NetworkOptions.None);
Assert.Equal(p2shOverp2wpkh.GetHash(), noWitTx.GetHash());
Assert.True(noWitTx.GetSerializedSize() < p2shOverp2wpkh.GetSerializedSize());
Assert.True(txBuilder.Verify(p2shOverp2wpkh)); //check fully signed
MempoolValidationState state = new MempoolValidationState(false);
Assert.True(await validator.AcceptToMemoryPool(state, p2shOverp2wpkh), $"Transaction: {nameof(p2shOverp2wpkh)} failed mempool validation.");
Directory.Delete(dataDir, true);
}
public async void AcceptToMemoryPool_WithValidP2PKHTxn_IsSuccessfull()
{
BitcoinSecret minerSecret = new BitcoinSecret(new Key(), Network.RegTest);
ITestChainContext context = TestChainFactory.Create(Network.RegTest, minerSecret.PubKey.Hash.ScriptPubKey);
IMempoolValidator validator = context.MempoolValidator;
Assert.NotNull(validator);
BitcoinSecret destSecret = new BitcoinSecret(new Key(), Network.RegTest);
Transaction tx = new Transaction();
tx.AddInput(new TxIn(new OutPoint(context.SrcTxs[0].GetHash(), 0), PayToPubkeyHashTemplate.Instance.GenerateScriptPubKey(minerSecret.PubKey)));
tx.AddOutput(new TxOut(new Money(Money.CENT * 11), destSecret.PubKeyHash));
tx.Sign(minerSecret, false);
MempoolValidationState state = new MempoolValidationState(false);
bool isSuccess = await validator.AcceptToMemoryPool(state, tx);
Assert.True(isSuccess, "P2PKH tx not valid.");
}
/// <summary>
/// Constructs an instance of memory pool behavior.
/// </summary>
/// <param name="validator">Memory pool validator for validating transactions.</param>
/// <param name="manager">Memory pool manager for managing the memory pool.</param>
/// <param name="orphans">Memory pool orphans for managing orphan transactions.</param>
/// <param name="connectionManager">Connection manager for managing node connections.</param>
/// <param name="chainState">Current block chain state.</param>
/// <param name="signals">Node notifications available to subscribe to.</param>
/// <param name="logger">Instance logger for memory pool behavior.</param>
public MempoolBehavior(
IMempoolValidator validator,
MempoolManager manager,
MempoolOrphans orphans,
IConnectionManager connectionManager,
ChainState chainState,
Signals.Signals signals,
ILogger logger)
{
this.validator = validator;
this.manager = manager;
this.orphans = orphans;
this.connectionManager = connectionManager;
this.chainState = chainState;
this.signals = signals;
this.logger = logger;
this.inventoryTxToSend = new Dictionary <uint256, uint256>();
this.filterInventoryKnown = new Dictionary <uint256, uint256>();
}
/// <summary>
/// Constructs an instance of a memory pool manager object.
/// </summary>
/// <param name="mempoolLock">A lock for managing asynchronous access to memory pool.</param>
/// <param name="memPool">Transaction memory pool for managing transactions in the memory pool.</param>
/// <param name="validator">Memory pool validator for validating transactions.</param>
/// <param name="orphans">Memory pool orphans for managing orphan transactions.</param>
/// <param name="dateTimeProvider">Date and time information provider.</param>
/// <param name="nodeArgs">Settings from the node.</param>
/// <param name="mempoolSettings">Settings for memory pool.</param>
/// <param name="mempoolPersistence">Memory pool persistence methods for loading and saving from storage.</param>
/// <param name="loggerFactory">Logger factory for creating instance logger.</param>
public MempoolManager(
MempoolSchedulerLock mempoolLock,
TxMempool memPool,
IMempoolValidator validator,
MempoolOrphans orphans,
IDateTimeProvider dateTimeProvider,
MempoolSettings mempoolSettings,
IMempoolPersistence mempoolPersistence,
CoinView coinView,
ILoggerFactory loggerFactory)
{
this.MempoolLock = mempoolLock;
this.memPool = memPool;
this.DateTimeProvider = dateTimeProvider;
this.mempoolSettings = mempoolSettings;
this.Orphans = orphans;
this.Validator = validator;
this.mempoolPersistence = mempoolPersistence;
this.coinView = coinView;
this.mempoolLogger = loggerFactory.CreateLogger(this.GetType().FullName);
}
/// <summary>
/// Constructs an instance of a MempoolSignaled object.
/// Starts the block notification loop to memory pool behaviors for connected nodes.
/// </summary>
/// <param name="manager">Memory pool manager injected dependency.</param>
/// <param name="chain">Concurrent chain injected dependency.</param>
/// <param name="connection">Connection manager injected dependency.</param>
/// <param name="nodeLifetime">Node lifetime injected dependency.</param>
/// <param name="asyncLoopFactory">Asynchronous loop factory injected dependency.</param>
/// <param name="mempoolLock">The mempool lock.</param>
/// <param name="memPool">the mempool.</param>
/// <param name="validator">The mempool validator.</param>
/// <param name="mempoolOrphans">The mempool orphan list.</param>
public MempoolSignaled(
MempoolManager manager,
ConcurrentChain chain,
IConnectionManager connection,
INodeLifetime nodeLifetime,
IAsyncLoopFactory asyncLoopFactory,
MempoolSchedulerLock mempoolLock,
ITxMempool memPool,
IMempoolValidator validator,
MempoolOrphans mempoolOrphans)
{
this.manager = manager;
this.chain = chain;
this.connection = connection;
this.nodeLifetime = nodeLifetime;
this.asyncLoopFactory = asyncLoopFactory;
this.mempoolLock = mempoolLock;
this.memPool = memPool;
this.validator = validator;
this.mempoolOrphans = mempoolOrphans;
}
public MempoolManager(
MempoolSchedulerLock mempoolLock,
ITxMempool memPool,
IMempoolValidator validator,
IDateTimeProvider dateTimeProvider,
MempoolSettings mempoolSettings,
IMempoolPersistence mempoolPersistence,
ICoinView coinView,
ILoggerFactory loggerFactory,
Network network)
{
this.MempoolLock = mempoolLock;
this.memPool = memPool;
this.DateTimeProvider = dateTimeProvider;
this.mempoolSettings = mempoolSettings;
this.Validator = validator;
this.mempoolPersistence = mempoolPersistence;
this.coinView = coinView;
this.network = network;
this.logger = loggerFactory.CreateLogger(GetType().FullName);
}
/// <summary>
/// Constructs an instance of memory pool behavior.
/// </summary>
/// <param name="validator">Memory pool validator for validating transactions.</param>
/// <param name="manager">Memory pool manager for managing the memory pool.</param>
/// <param name="orphans">Memory pool orphans for managing orphan transactions.</param>
/// <param name="connectionManager">Connection manager for managing peer connections.</param>
/// <param name="initialBlockDownloadState">Provider of IBD state.</param>
/// <param name="signals">Peer notifications available to subscribe to.</param>
/// <param name="logger">Instance logger for memory pool behavior.</param>
/// <param name="network">The blockchain network.</param>
public MempoolBehavior(
IMempoolValidator validator,
MempoolManager manager,
MempoolOrphans orphans,
IConnectionManager connectionManager,
IInitialBlockDownloadState initialBlockDownloadState,
Signals.Signals signals,
ILogger logger,
Network network)
{
this.validator = validator;
this.manager = manager;
this.orphans = orphans;
this.connectionManager = connectionManager;
this.initialBlockDownloadState = initialBlockDownloadState;
this.signals = signals;
this.logger = logger;
this.network = network;
this.inventoryTxToSend = new Dictionary <uint256, uint256>();
this.filterInventoryKnown = new Dictionary <uint256, uint256>();
}
public WalletManager(
ILoggerFactory loggerFactory,
IConnectionManager connectionManager,
Network network,
ConcurrentChain chain,
NodeSettings settings, DataFolder dataFolder,
IWalletFeePolicy walletFeePolicy,
IAsyncLoopFactory asyncLoopFactory,
INodeLifetime nodeLifetime,
IMempoolValidator mempoolValidator = null) // mempool does not exist in a light wallet
{
Guard.NotNull(loggerFactory, nameof(loggerFactory));
Guard.NotNull(network, nameof(network));
Guard.NotNull(chain, nameof(chain));
Guard.NotNull(settings, nameof(settings));
Guard.NotNull(dataFolder, nameof(dataFolder));
Guard.NotNull(walletFeePolicy, nameof(walletFeePolicy));
Guard.NotNull(asyncLoopFactory, nameof(asyncLoopFactory));
Guard.NotNull(nodeLifetime, nameof(nodeLifetime));
this.logger = loggerFactory.CreateLogger(this.GetType().FullName);
this.Wallets = new ConcurrentBag <Wallet>();
this.connectionManager = connectionManager;
this.network = network;
this.coinType = (CoinType)network.Consensus.CoinType;
this.chain = chain;
this.settings = settings;
this.dataFolder = dataFolder;
this.walletFeePolicy = walletFeePolicy;
this.mempoolValidator = mempoolValidator;
this.asyncLoopFactory = asyncLoopFactory;
this.nodeLifetime = nodeLifetime;
// register events
this.TransactionFound += this.OnTransactionFound;
}
public async Task AcceptToMemoryPool_WithValidP2PKHTxn_IsSuccessfullAsync()
{
string dataDir = GetTestDirectoryPath(this);
var minerSecret = new BitcoinSecret(new Key(), KnownNetworks.RegTest);
ITestChainContext context = await TestChainFactory.CreateAsync(KnownNetworks.RegTest, minerSecret.PubKey.Hash.ScriptPubKey, dataDir);
IMempoolValidator validator = context.MempoolValidator;
Assert.NotNull(validator);
var destSecret = new BitcoinSecret(new Key(), KnownNetworks.RegTest);
var tx = new Transaction();
tx.AddInput(new TxIn(new OutPoint(context.SrcTxs[0].GetHash(), 0), PayToPubkeyHashTemplate.Instance.GenerateScriptPubKey(minerSecret.PubKey)));
tx.AddOutput(new TxOut(new Money(Money.CENT * 11), destSecret.PubKeyHash));
tx.Sign(KnownNetworks.RegTest, minerSecret, false);
var state = new MempoolValidationState(false);
bool isSuccess = await validator.AcceptToMemoryPool(state, tx);
Assert.True(isSuccess, "P2PKH tx not valid.");
}
/// <summary>
/// Constructs an instance of a MempoolSignaled object.
/// Starts the block notification loop to memory pool behaviors for connected nodes.
/// </summary>
/// <param name="manager">Memory pool manager injected dependency.</param>
/// <param name="chainIndexer">Concurrent chain injected dependency.</param>
/// <param name="connection">Connection manager injected dependency.</param>
/// <param name="nodeLifetime">Node lifetime injected dependency.</param>
/// <param name="asyncProvider">Asynchronous loop factory injected dependency.</param>
/// <param name="mempoolLock">The mempool lock.</param>
/// <param name="memPool">the mempool.</param>
/// <param name="validator">The mempool validator.</param>
/// <param name="mempoolOrphans">The mempool orphan list.</param>
public MempoolSignaled(
MempoolManager manager,
ChainIndexer chainIndexer,
IConnectionManager connection,
INodeLifetime nodeLifetime,
IAsyncProvider asyncProvider,
MempoolSchedulerLock mempoolLock,
ITxMempool memPool,
IMempoolValidator validator,
MempoolOrphans mempoolOrphans,
ISignals signals)
{
this.manager = manager;
this.chainIndexer = chainIndexer;
this.connection = connection;
this.nodeLifetime = nodeLifetime;
this.asyncProvider = asyncProvider;
this.mempoolLock = mempoolLock;
this.memPool = memPool;
this.validator = validator;
this.mempoolOrphans = mempoolOrphans;
this.signals = signals;
}
public MempoolBehavior(
IMempoolValidator validator,
MempoolManager mempoolManager,
MempoolOrphans orphans,
IConnectionManager connectionManager,
IInitialBlockDownloadState initialBlockDownloadState,
Signals.Signals signals,
ILoggerFactory loggerFactory,
Network network)
{
this.validator = validator;
this.mempoolManager = mempoolManager;
this.orphans = orphans;
this.connectionManager = connectionManager;
this.initialBlockDownloadState = initialBlockDownloadState;
this.signals = signals;
this.logger = loggerFactory.CreateLogger(this.GetType().FullName);
this.loggerFactory = loggerFactory;
this.network = network;
this.lockObject = new object();
this.inventoryTxToSend = new HashSet <uint256>();
this.filterInventoryKnown = new HashSet <uint256>();
}
public WalletFeePolicy(BlockPolicyEstimator blockPolicyEstimator, IMempoolValidator mempoolValidator, TxMempool mempool, Network network)
{
this.blockPolicyEstimator = blockPolicyEstimator;
this.mempoolValidator = mempoolValidator;
this.mempool = mempool;
this.minTxFee = new FeeRate(1000);
this.fallbackFee = new FeeRate(20000);
this.payTxFee = new FeeRate(0);
this.maxTxFee = new Money(0.1M, MoneyUnit.BTC);
this.minRelayTxFee = MempoolValidator.MinRelayTxFee;
// this is a very very ugly hack
// the fee constants should be set at the
// network level or the consensus options
if (network.Name.ToLower().Contains("stratis"))
{
this.minTxFee = new FeeRate(10000);
this.fallbackFee = new FeeRate(40000);
this.payTxFee = new FeeRate(0);
this.maxTxFee = new Money(0.1M, MoneyUnit.BTC);
this.minRelayTxFee = new FeeRate(10000);
}
}
public FullNodeBroadcasterManager(IConnectionManager connectionManager, IMempoolValidator mempoolValidator) : base(connectionManager)
{
Guard.NotNull(mempoolValidator, nameof(mempoolValidator));
this.mempoolValidator = mempoolValidator;
}
/// <summary>
/// Constructs a memory pool coin view.
/// </summary>
/// <param name="inner">The backing coin view.</param>
/// <param name="memPool">Transaction memory pool for managing transactions in the memory pool.</param>
/// <param name="mempoolLock">A lock for managing asynchronous access to memory pool.</param>
/// <param name="mempoolValidator">Memory pool validator for validating transactions.</param>
public MempoolCoinView(CoinView inner, ITxMempool memPool, SchedulerLock mempoolLock, IMempoolValidator mempoolValidator)
{
this.Inner = inner;
this.memPool = memPool;
this.mempoolLock = mempoolLock;
this.mempoolValidator = mempoolValidator;
this.Set = new UnspentOutputSet();
}
public async Task AcceptToMemoryPool_WithP2SHValidTxns_IsSuccessfullAsync()
{
string dataDir = Path.Combine("TestData", nameof(MempoolValidatorTest), nameof(this.AcceptToMemoryPool_WithP2SHValidTxns_IsSuccessfullAsync));
Directory.CreateDirectory(dataDir);
BitcoinSecret miner = new BitcoinSecret(new Key(), Network.PurpleRegTest);
ITestChainContext context = await TestChainFactory.CreateAsync(Network.PurpleRegTest, miner.PubKey.Hash.ScriptPubKey, dataDir);
IMempoolValidator validator = context.MempoolValidator;
Assert.NotNull(validator);
BitcoinSecret alice = new BitcoinSecret(new Key(), Network.PurpleRegTest);
BitcoinSecret bob = new BitcoinSecret(new Key(), Network.PurpleRegTest);
BitcoinSecret satoshi = new BitcoinSecret(new Key(), Network.PurpleRegTest);
BitcoinSecret nico = new BitcoinSecret(new Key(), Network.PurpleRegTest);
// corp needs two out of three of alice, bob, nico
Script corpMultiSig = PayToMultiSigTemplate
.Instance
.GenerateScriptPubKey(2, new[] { alice.PubKey, bob.PubKey, nico.PubKey });
// P2SH address for corp multi-sig
BitcoinScriptAddress corpRedeemAddress = corpMultiSig.GetScriptAddress(Network.PurpleRegTest);
// Fund corp
// 50 Coins come from first tx on chain - send corp 42 and change back to miner
Coin coin = new Coin(context.SrcTxs[0].GetHash(), 0, context.SrcTxs[0].TotalOut, miner.ScriptPubKey);
TransactionBuilder txBuilder = new TransactionBuilder();
Transaction fundP2shTx = txBuilder
.AddCoins(new List <Coin> {
coin
})
.AddKeys(miner)
.Send(corpRedeemAddress, "42.00")
.SendFees("0.001")
.SetChange(miner.GetAddress())
.BuildTransaction(true);
Assert.True(txBuilder.Verify(fundP2shTx)); //check fully signed
MempoolValidationState state = new MempoolValidationState(false);
Assert.True(await validator.AcceptToMemoryPool(state, fundP2shTx), $"Transaction: {nameof(fundP2shTx)} failed mempool validation.");
// AliceBobNico corp. send 20 to Satoshi
Coin[] corpCoins = fundP2shTx.Outputs
.Where(o => o.ScriptPubKey == corpRedeemAddress.ScriptPubKey)
.Select(o => new ScriptCoin(new OutPoint(fundP2shTx.GetHash(), fundP2shTx.Outputs.IndexOf(o)), o, corpMultiSig))
.ToArray();
txBuilder = new TransactionBuilder();
Transaction p2shSpendTx = txBuilder
.AddCoins(corpCoins)
.AddKeys(alice, bob)
.Send(satoshi.GetAddress(), "20")
.SendFees("0.001")
.SetChange(corpRedeemAddress)
.BuildTransaction(true);
Assert.True(txBuilder.Verify(p2shSpendTx));
Assert.True(await validator.AcceptToMemoryPool(state, p2shSpendTx), $"Transaction: {nameof(p2shSpendTx)} failed mempool validation.");
Directory.Delete(dataDir, true);
}
public async Task AcceptToMemoryPool_WithMultiInOutValidTxns_IsSuccessfullAsync()
{
string dataDir = Path.Combine("TestData", nameof(MempoolValidatorTest), nameof(this.AcceptToMemoryPool_WithMultiInOutValidTxns_IsSuccessfullAsync));
Directory.CreateDirectory(dataDir);
BitcoinSecret miner = new BitcoinSecret(new Key(), Network.PurpleRegTest);
ITestChainContext context = await TestChainFactory.CreateAsync(Network.PurpleRegTest, miner.PubKey.Hash.ScriptPubKey, dataDir);
IMempoolValidator validator = context.MempoolValidator;
Assert.NotNull(validator);
BitcoinSecret alice = new BitcoinSecret(new Key(), Network.PurpleRegTest);
BitcoinSecret bob = new BitcoinSecret(new Key(), Network.PurpleRegTest);
BitcoinSecret satoshi = new BitcoinSecret(new Key(), Network.PurpleRegTest);
// Fund Alice, Bob, Satoshi
// 50 Coins come from first tx on chain - send satoshi 1, bob 2, Alice 1.5 and change back to miner
Coin coin = new Coin(context.SrcTxs[0].GetHash(), 0, context.SrcTxs[0].TotalOut, miner.ScriptPubKey);
TransactionBuilder txBuilder = new TransactionBuilder();
Transaction multiOutputTx = txBuilder
.AddCoins(new List <Coin> {
coin
})
.AddKeys(miner)
.Send(satoshi.GetAddress(), "1.00")
.Send(bob.GetAddress(), "2.00")
.Send(alice.GetAddress(), "1.50")
.SendFees("0.001")
.SetChange(miner.GetAddress())
.BuildTransaction(true);
Assert.True(txBuilder.Verify(multiOutputTx)); //check fully signed
MempoolValidationState state = new MempoolValidationState(false);
Assert.True(await validator.AcceptToMemoryPool(state, multiOutputTx), $"Transaction: {nameof(multiOutputTx)} failed mempool validation.");
// Alice then Bob sends to Satoshi
Coin[] aliceCoins = multiOutputTx.Outputs
.Where(o => o.ScriptPubKey == alice.ScriptPubKey)
.Select(o => new Coin(new OutPoint(multiOutputTx.GetHash(), multiOutputTx.Outputs.IndexOf(o)), o))
.ToArray();
Coin[] bobCoins = multiOutputTx.Outputs
.Where(o => o.ScriptPubKey == bob.ScriptPubKey)
.Select(o => new Coin(new OutPoint(multiOutputTx.GetHash(), multiOutputTx.Outputs.IndexOf(o)), o))
.ToArray();
txBuilder = new TransactionBuilder();
Transaction multiInputTx = txBuilder
.AddCoins(aliceCoins)
.AddKeys(alice)
.Send(satoshi.GetAddress(), "0.8")
.SetChange(alice.GetAddress())
.SendFees("0.0005")
.Then()
.AddCoins(bobCoins)
.AddKeys(bob)
.Send(satoshi.GetAddress(), "0.2")
.SetChange(bob.GetAddress())
.SendFees("0.0005")
.BuildTransaction(true);
Assert.True(txBuilder.Verify(multiInputTx)); //check fully signed
Assert.True(await validator.AcceptToMemoryPool(state, multiInputTx), $"Transaction: {nameof(multiInputTx)} failed mempool validation.");
Directory.Delete(dataDir, true);
}
public MempoolBroadcastCheck(IMempoolValidator mempoolValidator)
{
Guard.NotNull(mempoolValidator, nameof(mempoolValidator));
this.mempoolValidator = mempoolValidator;
}
public FullNodeBroadcasterManager(IConnectionManager connectionManager, IMempoolValidator mempoolValidator) : base()
{
this.connectionManager = connectionManager ?? throw new ArgumentNullException(nameof(connectionManager));
this.mempoolValidator = mempoolValidator ?? throw new ArgumentNullException(nameof(mempoolValidator));
}
public async Task AcceptToMemoryPool_WithMultiSigValidTxns_IsSuccessfullAsync()
{
string dataDir = GetTestDirectoryPath(this);
var miner = new BitcoinSecret(new Key(), Network.RegTest);
ITestChainContext context = await TestChainFactory.CreateAsync(Network.RegTest, miner.PubKey.Hash.ScriptPubKey, dataDir);
IMempoolValidator validator = context.MempoolValidator;
Assert.NotNull(validator);
var alice = new BitcoinSecret(new Key(), Network.RegTest);
var bob = new BitcoinSecret(new Key(), Network.RegTest);
var satoshi = new BitcoinSecret(new Key(), Network.RegTest);
var nico = new BitcoinSecret(new Key(), Network.RegTest);
// corp needs two out of three of alice, bob, nico
Script corpMultiSig = PayToMultiSigTemplate
.Instance
.GenerateScriptPubKey(2, new[] { alice.PubKey, bob.PubKey, nico.PubKey });
// Fund corp
// 50 Coins come from first tx on chain - send corp 42 and change back to miner
var coin = new Coin(context.SrcTxs[0].GetHash(), 0, context.SrcTxs[0].TotalOut, miner.ScriptPubKey);
var txBuilder = new TransactionBuilder(Network.RegTest);
Transaction sendToMultiSigTx = txBuilder
.AddCoins(new List <Coin> {
coin
})
.AddKeys(miner)
.Send(corpMultiSig, "42.00")
.SendFees("0.001")
.SetChange(miner.GetAddress())
.BuildTransaction(true);
Assert.True(txBuilder.Verify(sendToMultiSigTx)); //check fully signed
var state = new MempoolValidationState(false);
Assert.True(await validator.AcceptToMemoryPool(state, sendToMultiSigTx), $"Transaction: {nameof(sendToMultiSigTx)} failed mempool validation.");
// AliceBobNico corp. send to Satoshi
Coin[] corpCoins = sendToMultiSigTx.Outputs
.Where(o => o.ScriptPubKey == corpMultiSig)
.Select(o => new Coin(new OutPoint(sendToMultiSigTx.GetHash(), sendToMultiSigTx.Outputs.IndexOf(o)), o))
.ToArray();
// Alice initiates the transaction
txBuilder = new TransactionBuilder(Network.RegTest);
Transaction multiSigTx = txBuilder
.AddCoins(corpCoins)
.AddKeys(alice)
.Send(satoshi.GetAddress(), "4.5")
.SendFees("0.001")
.SetChange(corpMultiSig)
.BuildTransaction(true);
Assert.True(!txBuilder.Verify(multiSigTx)); //Well, only one signature on the two required...
// Nico completes the transaction
txBuilder = new TransactionBuilder(Network.RegTest);
multiSigTx = txBuilder
.AddCoins(corpCoins)
.AddKeys(nico)
.SignTransaction(multiSigTx);
Assert.True(txBuilder.Verify(multiSigTx));
Assert.True(await validator.AcceptToMemoryPool(state, multiSigTx), $"Transaction: {nameof(multiSigTx)} failed mempool validation.");
}