public MerkleBlock(Block block, uint256[] txIds)
{
header = block.Header;
List<bool> vMatch = new List<bool>();
List<uint256> vHashes = new List<uint256>();
for(int i = 0 ; i < block.Transactions.Count ; i++)
{
var hash = block.Transactions[i].GetHash();
vHashes.Add(hash);
vMatch.Add(txIds.Contains(hash));
}
_PartialMerkleTree = new PartialMerkleTree(vHashes.ToArray(), vMatch.ToArray());
}
// Create from a CBlock, filtering transactions according to filter
// Note that this will call IsRelevantAndUpdate on the filter for each transaction,
// thus the filter will likely be modified.
public MerkleBlock(Block block, BloomFilter filter)
{
header = block.Header;
List<bool> vMatch = new List<bool>();
List<uint256> vHashes = new List<uint256>();
for(uint i = 0 ; i < block.Transactions.Count ; i++)
{
uint256 hash = block.Transactions[(int)i].GetHash();
vMatch.Add(filter.IsRelevantAndUpdate(block.Transactions[(int)i]));
vHashes.Add(hash);
}
_PartialMerkleTree = new PartialMerkleTree(vHashes.ToArray(), vMatch.ToArray());
}
// Create from a CBlock, filtering transactions according to filter
// Note that this will call IsRelevantAndUpdate on the filter for each transaction,
// thus the filter will likely be modified.
public MerkleBlock(Block block, BloomFilter filter)
{
this.header = block.Header;
var vMatch = new List <bool>();
var vHashes = new List <uint256>();
for (uint i = 0; i < block.Transactions.Count; i++)
{
var hash = block.Transactions[(int)i].GetHash();
vMatch.Add(filter.IsRelevantAndUpdate(block.Transactions[(int)i]));
vHashes.Add(hash);
}
this._PartialMerkleTree = new PartialMerkleTree(vHashes.ToArray(), vMatch.ToArray());
}
public ProvenBlockHeader(PosBlock block)
{
if (block == null)
{
throw new ArgumentNullException(nameof(block));
}
// Copy block header properties.
this.HashPrevBlock = block.Header.HashPrevBlock;
this.HashMerkleRoot = block.Header.HashMerkleRoot;
this.Time = block.Header.Time;
this.Bits = block.Header.Bits;
this.Nonce = block.Header.Nonce;
this.Version = block.Header.Version;
this.signature = block.BlockSignature;
this.coinstake = block.Transactions[1];
this.merkleProof = new MerkleBlock(block, new[] { this.coinstake.GetHash() }).PartialMerkleTree;
}
/// <summary>
/// Remove superflous branches
/// </summary>
/// <param name="transaction"></param>
/// <returns></returns>
public PartialMerkleTree Trim(params uint256[] matchedTransactions)
{
var trimmed = new PartialMerkleTree();
trimmed.TransactionCount = this.TransactionCount;
MerkleNode root = GetMerkleRoot();
foreach (MerkleNode leaf in root.GetLeafs())
{
MarkToTop(leaf, false);
}
var flags = new BitWriter();
foreach (MerkleNode leaf in root.GetLeafs().Where(l => matchedTransactions.Contains(l.Hash)))
{
MarkToTop(leaf, true);
}
trimmed.BuildCore(root, flags);
trimmed.Flags = flags.ToBitArray();
return(trimmed);
}
// Create from a CBlock, filtering transactions according to filter
// Note that this will call IsRelevantAndUpdate on the filter for each transaction,
// thus the filter will likely be modified.
public MerkleBlock(Block block, BloomFilter filter)
{
header = block.Header;
List<bool> vMatch = new List<bool>();
List<uint256> vHashes = new List<uint256>();
for(uint i = 0 ; i < block.Transactions.Length ; i++)
{
uint256 hash = block.Transactions[i].GetHash();
if(filter.IsRelevantAndUpdate(block.Transactions[i]))
{
vMatch.Add(true);
vMatchedTxn.Add(Tuple.Create(i, hash));
}
else
vMatch.Add(false);
vHashes.Add(hash);
}
txn = new PartialMerkleTree(vHashes.ToArray(), vMatch.ToArray());
}
/// <summary>
/// Remove superflous branches
/// </summary>
/// <param name="transaction"></param>
/// <returns></returns>
public PartialMerkleTree Trim(params uint256[] matchedTransactions)
{
PartialMerkleTree trimmed = new PartialMerkleTree();
trimmed.TransactionCount = TransactionCount;
var root = GetMerkleRoot();
foreach(var leaf in root.GetLeafs())
{
MarkToTop(leaf, false);
}
BitWriter flags = new BitWriter();
foreach(var leaf in root.GetLeafs().Where(l => matchedTransactions.Contains(l.Hash)))
{
MarkToTop(leaf, true);
}
trimmed.BuildCore(root, flags);
trimmed.Flags = flags.ToBitArray();
return trimmed;
}
