-\feffusing System;
+\feff/**
+ * Novacoin classes library
+ * Copyright (C) 2015 Alex D. (balthazar.ad@gmail.com)
+
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+using System;
+using System.Text;
+using System.Collections.Generic;
namespace Novacoin
{
- /// <summary>
- /// Represents the transaction. Any transaction must provide one input and one output at least.
- /// </summary>
- public class CTransaction
- {
- /// <summary>
- /// Version of transaction schema.
- /// </summary>
- public uint nVersion = 1;
-
- /// <summary>
- /// Transaction timestamp.
- /// </summary>
- public uint nTime = 0;
-
- /// <summary>
- /// Array of transaction inputs
- /// </summary>
- public CTxIn[] inputs;
-
- /// <summary>
- /// Array of transaction outputs
- /// </summary>
- public CTxOut[] outputs;
-
- /// <summary>
- /// Block height or timestamp when transaction is final
- /// </summary>
- public uint nLockTime = 0;
-
- public CTransaction ()
- {
-
- }
+ /// <summary>
+ /// Represents the transaction. Any transaction must provide one input and one output at least.
+ /// </summary>
+ public class CTransaction
+ {
+ /// <summary>
+ /// Version of transaction schema.
+ /// </summary>
+ public uint nVersion = 1;
+
+ /// <summary>
+ /// Transaction timestamp.
+ /// </summary>
+ public uint nTime = 0;
+
+ /// <summary>
+ /// Array of transaction inputs
+ /// </summary>
+ public CTxIn[] vin;
+
+ /// <summary>
+ /// Array of transaction outputs
+ /// </summary>
+ public CTxOut[] vout;
+
+ /// <summary>
+ /// Block height or timestamp when transaction is final
+ /// </summary>
+ public uint nLockTime = 0;
+
+ /// <summary>
+ /// Initialize an empty instance
+ /// </summary>
+ public CTransaction()
+ {
+ // Initialize empty input and output arrays. Please note that such
+ // configuration is not valid for real transaction, you have to supply
+ // at least one input and one output.
+ vin = new CTxIn[0];
+ vout = new CTxOut[0];
+ }
+
+ /// <summary>
+ /// Initialize new instance as a copy of another transaction
+ /// </summary>
+ /// <param name="tx">Transaction to copy from</param>
+ public CTransaction(CTransaction tx)
+ {
+ nVersion = tx.nVersion;
+ nTime = tx.nTime;
+
+ vin = new CTxIn[tx.vin.Length];
+
+ for (int i = 0; i < vin.Length; i++)
+ {
+ vin[i] = new CTxIn(tx.vin[i]);
+ }
+
+ vout = new CTxOut[tx.vout.Length];
+
+ for (int i = 0; i < vout.Length; i++)
+ {
+ vout[i] = new CTxOut(tx.vout[i]);
+ }
+
+ nLockTime = tx.nLockTime;
+ }
+
+
+ /// <summary>
+ /// Parse byte sequence and initialize new instance of CTransaction
+ /// </summary>
+ /// <param name="txBytes">Byte sequence</param>
+ public CTransaction(IList<byte> txBytes)
+ {
+ var wBytes = new ByteQueue(txBytes);
+
+ nVersion = BitConverter.ToUInt32(wBytes.Get(4), 0);
+ nTime = BitConverter.ToUInt32(wBytes.Get(4), 0);
+
+ int nInputs = (int)(int)wBytes.GetVarInt();
+ vin = new CTxIn[nInputs];
+
+ for (int nCurrentInput = 0; nCurrentInput < nInputs; nCurrentInput++)
+ {
+ // Fill inputs array
+ vin[nCurrentInput] = new CTxIn();
+
+ vin[nCurrentInput].prevout = new COutPoint(wBytes.Get(36));
+
+ int nScriptSigLen = (int)wBytes.GetVarInt();
+ vin[nCurrentInput].scriptSig = new CScript(wBytes.Get(nScriptSigLen));
+
+ vin[nCurrentInput].nSequence = BitConverter.ToUInt32(wBytes.Get(4), 0);
+ }
+
+ int nOutputs = (int)wBytes.GetVarInt();
+ vout = new CTxOut[nOutputs];
+
+ for (int nCurrentOutput = 0; nCurrentOutput < nOutputs; nCurrentOutput++)
+ {
+ // Fill outputs array
+ vout[nCurrentOutput] = new CTxOut();
+ vout[nCurrentOutput].nValue = BitConverter.ToInt64(wBytes.Get(8), 0);
+
+ int nScriptPKLen = (int)wBytes.GetVarInt();
+ vout[nCurrentOutput].scriptPubKey = new CScript(wBytes.Get(nScriptPKLen));
+ }
+
+ nLockTime = BitConverter.ToUInt32(wBytes.Get(4), 0);
+ }
+
+ /// <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 ByteQueue wTxBytes)
+ {
+ // Read amount of transactions
+ int nTransactions = (int)wTxBytes.GetVarInt();
+ var tx = new CTransaction[nTransactions];
+
+ for (int nTx = 0; nTx < nTransactions; nTx++)
+ {
+ // Fill the transactions array
+ tx[nTx] = new CTransaction();
+
+ tx[nTx].nVersion = BitConverter.ToUInt32(wTxBytes.Get(4), 0);
+ tx[nTx].nTime = BitConverter.ToUInt32(wTxBytes.Get(4), 0);
+
+ // Inputs array
+ tx[nTx].vin = CTxIn.ReadTxInList(ref wTxBytes);
+
+ // outputs array
+ tx[nTx].vout = CTxOut.ReadTxOutList(ref wTxBytes);
+
+ tx[nTx].nLockTime = BitConverter.ToUInt32(wTxBytes.Get(4), 0);
+ }
+
+ return tx;
+ }
+
+ public bool IsCoinBase
+ {
+ get { return (vin.Length == 1 && vin[0].prevout.IsNull && vout.Length >= 1); }
+ }
+
+ public bool IsCoinStake
+ {
+ get
+ {
+ return (vin.Length > 0 && (!vin[0].prevout.IsNull) && vout.Length >= 2 && vout[0].IsEmpty);
+ }
+ }
+
+ /// <summary>
+ /// Transaction hash
+ /// </summary>
+ public Hash256 Hash
+ {
+ get { return Hash256.Compute256(Bytes); }
+ }
+
+ /// <summary>
+ /// A sequence of bytes, which corresponds to the current state of CTransaction.
+ /// </summary>
+ public IList<byte> Bytes
+ {
+ get
+ {
+ var 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(BitConverter.GetBytes(nVersion));
+ resultBytes.AddRange(BitConverter.GetBytes(nTime));
+ resultBytes.AddRange(VarInt.EncodeVarInt(vin.LongLength));
+
+ foreach (var input in vin)
+ {
+ resultBytes.AddRange(input.Bytes);
+ }
+
+ resultBytes.AddRange(VarInt.EncodeVarInt(vout.LongLength));
+
+ foreach (var output in vout)
+ {
+ resultBytes.AddRange(output.Bytes);
+ }
+
+ resultBytes.AddRange(BitConverter.GetBytes(nLockTime));
+
+ return resultBytes;
+ }
+ }
+
+ public override string ToString()
+ {
+ var sb = new StringBuilder();
+
+ sb.AppendFormat("CTransaction(\n nVersion={0},\n nTime={1},\n", nVersion, nTime);
+
+ foreach (var txin in vin)
+ {
+ sb.AppendFormat(" {0},\n", txin.ToString());
+ }
+
+ foreach (var txout in vout)
+ {
+ sb.AppendFormat(" {0},\n", txout.ToString());
+ }
+
+ sb.AppendFormat("\nnLockTime={0}\n)", nLockTime);
+
+ return sb.ToString();
+ }
}
}
-
git://git.novaco.in / NovacoinLibrary.git / blobdiff