\feffusing System;
+using System.Text;
+using System.Collections.Generic;
namespace Novacoin
{
/// <summary>
/// Version of transaction schema.
/// </summary>
- public uint nVersion;
+ public uint nVersion = 1;
/// <summary>
/// Transaction timestamp.
/// </summary>
- public uint nTime;
+ public uint nTime = 0;
/// <summary>
/// Array of transaction inputs
/// </summary>
- public CTxIn[] inputs;
+ public CTxIn[] vin;
/// <summary>
/// Array of transaction outputs
/// </summary>
- public CTxOut[] outputs;
+ public CTxOut[] vout;
/// <summary>
/// Block height or timestamp when transaction is final
/// </summary>
- public uint nLockTime;
+ public uint nLockTime = 0;
- public CTransaction ()
+ /// <summary>
+ /// Initialize an empty instance
+ /// </summary>
+ public CTransaction()
+ {
+ }
+
+ /// <summary>
+ /// Parse byte sequence and initialize new instance of CTransaction
+ /// </summary>
+ /// <param name="txBytes"></param>
+ public CTransaction (IList<byte> txBytes)
{
+ WrappedList<byte> wBytes = new WrappedList<byte>(txBytes);
+
+ nVersion = Interop.LEBytesToUInt32(wBytes.GetItems(4));
+ nTime = Interop.LEBytesToUInt32(wBytes.GetItems(4));
+
+ int nInputs = (int)VarInt.ReadVarInt(ref wBytes);
+ vin = new CTxIn[nInputs];
+
+ for (int nCurrentInput = 0; nCurrentInput < nInputs; nCurrentInput++)
+ {
+ // Fill inputs array
+ vin[nCurrentInput] = new CTxIn();
+
+ vin[nCurrentInput].txID = new Hash256(wBytes.GetItems(32));
+ vin[nCurrentInput].n = Interop.LEBytesToUInt32(wBytes.GetItems(4));
+ vin[nCurrentInput].scriptSig = wBytes.GetItems((int)VarInt.ReadVarInt(ref wBytes));
+ vin[nCurrentInput].nSequence = Interop.LEBytesToUInt32(wBytes.GetItems(4));
+ }
+
+ int nOutputs = (int)VarInt.ReadVarInt(ref wBytes);
+ vout = new CTxOut[nOutputs];
+
+ for (int nCurrentOutput = 0; nCurrentOutput < nOutputs; nCurrentOutput++)
+ {
+ // Fill outputs array
+ vout[nCurrentOutput] = new CTxOut();
+ vout[nCurrentOutput].nValue = Interop.LEBytesToUInt64(wBytes.GetItems(8));
+ vout[nCurrentOutput].scriptPubKey = wBytes.GetItems((int)VarInt.ReadVarInt(ref wBytes));
+ }
+ nLockTime = Interop.LEBytesToUInt32(wBytes.GetItems(4));
}
+
+ /// <summary>
+ /// Read transactions array which is encoded in the block body.
+ /// </summary>
+ /// <param name="wTxBytes">Bytes sequence</param>
+ /// <returns>Transactions array</returns>
+ public static CTransaction[] ReadTransactionsList(ref WrappedList<byte> wTxBytes)
+ {
+ CTransaction[] tx;
+
+ // Read amount of transactions
+ int nTransactions = (int) VarInt.ReadVarInt(ref wTxBytes);
+ tx = new CTransaction[nTransactions];
+
+ for (int nTx = 0; nTx < nTransactions; nTx++)
+ {
+ // Fill the transactions array
+ tx[nTx] = new CTransaction();
+
+ tx[nTx].nVersion = Interop.LEBytesToUInt32(wTxBytes.GetItems(4));
+ tx[nTx].nTime = Interop.LEBytesToUInt32(wTxBytes.GetItems(4));
+
+ // Inputs array
+ tx[nTx].vin = CTxIn.ReadTxInList(ref wTxBytes);
+
+ // outputs array
+ tx[nTx].vout = CTxOut.ReadTxOutList(ref wTxBytes);
+
+ tx[nTx].nLockTime = Interop.LEBytesToUInt32(wTxBytes.GetItems(4));
+ }
+
+ return tx;
+ }
+
+ public IList<byte> ToBytes()
+ {
+ List<byte> resultBytes = new List<byte>();
+
+ // Typical transaction example:
+ //
+ // 01000000 -- version
+ // 78b4c953 -- timestamp
+ // 06 -- amount of txins
+ // 340d96b77ec4ee9d42b31cadc2fab911e48d48c36274d516f226d5e85bbc512c -- txin hash
+ // 01000000 -- txin outnumber
+ // 6b -- txin scriptSig length
+ // 483045022100c8df1fc17b6ea1355a39b92146ec67b3b53565e636e028010d3a8a87f6f805f202203888b9b74df03c3960773f2a81b2dfd1efb08bb036a8f3600bd24d5ed694cd5a0121030dd13e6d3c63fa10cc0b6bf968fbbfcb9a988b333813b1f22d04fa60e344bc4c -- txin scriptSig
+ // ffffffff -- txin nSequence
+ // 364c640420de8fa77313475970bf09ce4d0b1f8eabb8f1d6ea49d90c85b202ee -- txin hash
+ // 01000000 -- txin outnumber
+ // 6b -- txin scriptSig length
+ // 483045022100b651bf3a6835d714d2c990c742136d769258d0170c9aac24803b986050a8655b0220623651077ff14b0a9d61e30e30f2c15352f70491096f0ec655ae1c79a44e53aa0121030dd13e6d3c63fa10cc0b6bf968fbbfcb9a988b333813b1f22d04fa60e344bc4c -- txin scriptSig
+ // ffffffff -- txin nSequence
+ // 7adbd5f2e521f567bfea2cb63e65d55e66c83563fe253464b75184a5e462043d -- txin hash
+ // 00000000 -- txin outnumber
+ // 6a -- txin scriptSig length
+ // 4730440220183609f2b995993acc9df241aff722d48b9a731b0cd376212934565723ed81f00220737e7ce75ef39bdc061d0dcdba3ee24e43b899696a7c96803cee0a79e1f78ecb0121030dd13e6d3c63fa10cc0b6bf968fbbfcb9a988b333813b1f22d04fa60e344bc4c -- txin scriptSig
+ // ffffffff -- txin nSequence
+ // 999eb03e00a41c2f9fde8865a554ceebbc48d30f4c8ba22dd88da8c9b46fa920 -- txin hash
+ // 03000000 -- txin outnumber
+ // 6b -- txin scriptSig length
+ // 483045022100ec1ab104ef086ba79b0f2611ebf1bfdd22a7a1020f6630fa1c6707546626e0db022056093d4048a999392185ccc735ef736a5497bd68f60b42e6c0c93ba770b54d010121030dd13e6d3c63fa10cc0b6bf968fbbfcb9a988b333813b1f22d04fa60e344bc4c -- txin scriptSig
+ // ffffffff -- txin nSequence
+ // c0543b86be257ddd85b014a76718a70fab9eaa3c477460e4ca187094d86f369c -- txin hash
+ // 05000000 -- txin outnumber
+ // 69 -- txin scriptSig length
+ // 463043021f24275c72f952043174daf01d7f713f878625f0522124a3cab48a0a2e12604202201b47742e6697b0ebdd1e4ba49c74baf142a0228ad0e0ee847488994c9dce78470121030dd13e6d3c63fa10cc0b6bf968fbbfcb9a988b333813b1f22d04fa60e344bc4c -- txin scriptSig
+ // ffffffff -- txin nSequence
+ // e1793d4519147782293dd1db6d90e461265d91db2cc6889c37209394d42ad10d -- txin hash
+ // 05000000 -- txin outnumber
+ // 6a -- txin scriptSig length
+ // 473044022018a0c3d73b2765d75380614ab36ee8e3c937080894a19166128b1e3357b208fb0220233c9609985f535547381431526867ad0255ec4969afe5c360544992ed6b3ed60121030dd13e6d3c63fa10cc0b6bf968fbbfcb9a988b333813b1f22d04fa60e344bc4c -- txin scriptSig
+ // ffffffff -- txin nSequence
+ // 02 -- amount of txouts
+ // e542000000000000 -- txout value
+ // 19 -- scriptPubKey length
+ // 76a91457d84c814b14bd86bf32f106b733baa693db7dc788ac -- scriptPubKey
+ // 409c000000000000 -- txout value
+ // 19 -- scriptPubKey length
+ // 76a91408c8768d5d6bf7c1d9609da4e766c3f1752247b188ac -- scriptPubKey
+ // 00000000 -- lock time
+
+ resultBytes.AddRange(Interop.LEBytes(nVersion));
+ resultBytes.AddRange(Interop.LEBytes(nTime));
+ resultBytes.AddRange(VarInt.EncodeVarInt(vin.LongLength));
+
+ foreach(CTxIn input in vin)
+ {
+ resultBytes.AddRange(input.ToBytes());
+ }
+
+ resultBytes.AddRange(VarInt.EncodeVarInt(vout.LongLength));
+
+ foreach(CTxOut output in vout)
+ {
+ resultBytes.AddRange(output.ToBytes());
+ }
+
+ resultBytes.AddRange(Interop.LEBytes(nLockTime));
+
+ return resultBytes;
+ }
+
+ public override string ToString()
+ {
+ StringBuilder sb = new StringBuilder();
+
+ sb.AppendFormat("CTransaction(\n nVersion={0},\n nTime={1},\n", nVersion, nTime);
+
+ foreach (CTxIn txin in vin)
+ {
+ sb.AppendFormat(" {0},\n", txin.ToString());
+ }
+
+ foreach (CTxOut txout in vout)
+ {
+ sb.AppendFormat(" {0},\n", txout.ToString());
+ }
+
+ sb.AppendFormat("\nnLockTime={0}\n)", nLockTime);
+
+ return sb.ToString();
+ }
}
}
-