public void CanRoundtripCmpctBlock()
{
Block block = new Block();
block.Transactions.Add(new Transaction());
var cmpct = new CmpctBlockPayload(block);
cmpct.Clone();
}
public void CanAskCmpctBlock()
{
var alice = new BitcoinSecret("KypycJyxP5yA4gSedEBRse5q5f8RwYKG8xi8z4SRe2rdaioL3YNc").PrivateKey;
var satoshi = new BitcoinSecret("KypycJyxP5yA4gSedEBRse5q5f8RwYKG8xi8z4SRe2rdaioL3YNc").ToNetwork(Network.RegTest);
using(var builder = NodeBuilder.Create(version: "C:\\Bitcoin\\bitcoind.exe"))
{
var now = new DateTimeOffset(2015, 07, 18, 0, 0, 0, TimeSpan.Zero);
builder.ConfigParameters.Add("mocktime", Utils.DateTimeToUnixTime(now).ToString());
var bitcoind = builder.CreateNode(false);
var bitcoind2 = builder.CreateNode(false);
builder.StartAll();
bitcoind.SetMinerSecret(satoshi);
bitcoind.MockTime = now;
bitcoind2.SetMinerSecret(satoshi);
bitcoind2.MockTime = now;
var rpc = bitcoind.CreateRPCClient();
rpc.AddNode(bitcoind2.Endpoint, true);
var client1 = bitcoind.CreateNodeClient(new NodeConnectionParameters()
{
Version = ProtocolVersion.SHORT_IDS_BLOCKS_VERSION
});
using(var listener = client1.CreateListener())
{
client1.VersionHandshake();
var sendCmpct = listener.ReceivePayload<SendCmpctPayload>();
Assert.Equal(1U, sendCmpct.Version);
Assert.Equal(false, sendCmpct.PreferHeaderAndIDs);
//Announcement
client1.SendMessage(new SendCmpctPayload(false));
bitcoind.Generate(1);
var inv = listener.ReceivePayload<InvPayload>();
Assert.True(inv.First().Type == InventoryType.MSG_BLOCK);
//Request block
inv.First().Type = InventoryType.MSG_CMPCT_BLOCK;
client1.SendMessage(new GetDataPayload(inv.First()));
var blk = listener.ReceivePayload<CmpctBlockPayload>();
//Request transaction
var getTxn = new GetBlockTxnPayload();
getTxn.BlockId = blk.Header.GetHash();
getTxn.Indices.Add(0);
client1.SendMessage(getTxn);
var blockTxn = listener.ReceivePayload<BlockTxnPayload>();
Assert.True(blockTxn.BlockId == blk.Header.GetHash());
Assert.True(blockTxn.Transactions[0].GetHash() == blk.PrefilledTransactions[0].Transaction.GetHash());
bitcoind.Generate(100);
var tx = bitcoind.GiveMoney(alice.ScriptPubKey, Money.Coins(1), false);
var lastBlk = bitcoind.Generate(1)[0];
while(true)
{
var invv = listener.ReceivePayload<InvPayload>().First();
if(invv.Hash == lastBlk.GetHash())
{
invv.Type = InventoryType.MSG_CMPCT_BLOCK;
client1.SendMessage(new GetDataPayload(invv));
break;
}
}
blk = listener.ReceivePayload<CmpctBlockPayload>();
Assert.Equal(1, blk.ShortIds.Count);
Assert.Equal(blk.ShortIds[0], blk.GetShortID(tx.GetHash()));
//Let the node know which is the last block that we know
client1.SendMessage(new InvPayload(new InventoryVector(InventoryType.MSG_BLOCK, blk.Header.GetHash())));
bitcoind.Generate(1);
inv = listener.ReceivePayload<InvPayload>();
inv.First().Type = InventoryType.MSG_CMPCT_BLOCK;
client1.SendMessage(new GetDataPayload(inv.First()));
blk = listener.ReceivePayload<CmpctBlockPayload>();
//Prefer being notified with cmpctblock
client1.SendMessage(new SendCmpctPayload(true));
//Let the node know which is the last block that we know
client1.SendMessage(new InvPayload(new InventoryVector(InventoryType.MSG_BLOCK, blk.Header.GetHash())));
bitcoind.Generate(1);
blk = listener.ReceivePayload<CmpctBlockPayload>();
//The node ask to connect to use in high bandwidth mode
var blocks = bitcoind.Generate(1, broadcast: false);
client1.SendMessage(new HeadersPayload(blocks[0].Header));
var cmpct = listener.ReceivePayload<SendCmpctPayload>(); //Should become one of the three high bandwidth node
Assert.True(cmpct.PreferHeaderAndIDs);
var getdata = listener.ReceivePayload<GetDataPayload>();
Assert.True(getdata.Inventory[0].Type == InventoryType.MSG_CMPCT_BLOCK);
client1.SendMessage(new CmpctBlockPayload(blocks[0]));
//Should be able to get a compact block with Inv
blocks = bitcoind.Generate(1, broadcast: false);
client1.SendMessage(new InvPayload(blocks[0]));
getdata = listener.ReceivePayload<GetDataPayload>();
Assert.True(getdata.Inventory[0].Type == InventoryType.MSG_CMPCT_BLOCK);
client1.SendMessage(new CmpctBlockPayload(blocks[0]));
//Send as prefilled transaction 0 and 2
var tx1 = bitcoind.GiveMoney(satoshi.ScriptPubKey, Money.Coins(1.0m), broadcast: false);
var tx2 = bitcoind.GiveMoney(satoshi.ScriptPubKey, Money.Coins(2.0m), broadcast: false);
var tx3 = bitcoind.GiveMoney(satoshi.ScriptPubKey, Money.Coins(3.0m), broadcast: false);
blocks = bitcoind.Generate(1, broadcast: false);
Assert.True(blocks[0].Transactions.Count == 4);
var cmpctBlk = new CmpctBlockPayload();
cmpctBlk.Nonce = RandomUtils.GetUInt64();
cmpctBlk.Header = blocks[0].Header;
cmpctBlk.PrefilledTransactions.Add(new PrefilledTransaction() { Index = 0, Transaction = blocks[0].Transactions[0] });
cmpctBlk.PrefilledTransactions.Add(new PrefilledTransaction() { Index = 2, Transaction = blocks[0].Transactions[2] });
cmpctBlk.AddTransactionShortId(blocks[0].Transactions[1]);
cmpctBlk.AddTransactionShortId(blocks[0].Transactions[3]);
client1.SendMessage(cmpctBlk);
//Check that node ask for 1 and 3
var gettxn = listener.ReceivePayload<GetBlockTxnPayload>();
Assert.Equal(2, gettxn.Indices.Count);
Assert.Equal(1, gettxn.Indices[0]);
Assert.Equal(3, gettxn.Indices[1]);
client1.SendMessage(new BlockTxnPayload()
{
BlockId = blocks[0].GetHash(),
Transactions =
{
blocks[0].Transactions[1],
blocks[0].Transactions[3],
}
});
//Both nodes updated ?
var chain1 = client1.GetChain();
Assert.Equal(blocks[0].GetHash(), chain1.Tip.HashBlock);
using(var client2 = bitcoind2.CreateNodeClient())
{
client2.VersionHandshake();
var chain2 = client2.GetChain();
Assert.Equal(chain1.Tip.HashBlock, chain2.Tip.HashBlock);
}
//Block with coinbase only
blocks = bitcoind.Generate(1, broadcast: false);
client1.SendMessage(new CmpctBlockPayload(blocks[0]));
client1.SynchronizeChain(chain1);
Assert.Equal(chain1.Tip.HashBlock, blocks[0].GetHash());
}
}
}