3 using System.Collections.Generic;
8 /// Represents the transaction. Any transaction must provide one input and one output at least.
10 public class CTransaction
13 /// Version of transaction schema.
15 public uint nVersion = 1;
18 /// Transaction timestamp.
20 public uint nTime = 0;
23 /// Array of transaction inputs
28 /// Array of transaction outputs
33 /// Block height or timestamp when transaction is final
35 public uint nLockTime = 0;
38 /// Initialize an empty instance
45 /// Initialize new instance as a copy of another transaction
47 /// <param name="tx">Transaction to copy from</param>
48 public CTransaction(CTransaction tx)
50 nVersion = tx.nVersion;
53 vin = new CTxIn[tx.vin.Length];
55 for (int i = 0; i < vin.Length; i++)
57 vin[i] = new CTxIn(tx.vin[i]);
60 vout = new CTxOut[tx.vout.Length];
62 for (int i = 0; i < vout.Length; i++)
64 vout[i] = new CTxOut(tx.vout[i]);
67 nLockTime = tx.nLockTime;
72 /// Parse byte sequence and initialize new instance of CTransaction
74 /// <param name="txBytes">Byte sequence</param>
75 public CTransaction (IList<byte> txBytes)
77 WrappedList<byte> wBytes = new WrappedList<byte>(txBytes);
79 nVersion = BitConverter.ToUInt32(wBytes.GetItems(4),0);
80 nTime = BitConverter.ToUInt32(wBytes.GetItems(4),0);
82 int nInputs = (int)VarInt.ReadVarInt(ref wBytes);
83 vin = new CTxIn[nInputs];
85 for (int nCurrentInput = 0; nCurrentInput < nInputs; nCurrentInput++)
88 vin[nCurrentInput] = new CTxIn();
90 vin[nCurrentInput].txID = new Hash256(wBytes.GetItems(32));
91 vin[nCurrentInput].n = BitConverter.ToUInt32(wBytes.GetItems(4), 0);
93 int nScriptSigLen = (int)VarInt.ReadVarInt(ref wBytes);
94 vin[nCurrentInput].scriptSig = new CScript(wBytes.GetItems(nScriptSigLen));
95 vin[nCurrentInput].nSequence = BitConverter.ToUInt32(wBytes.GetItems(4), 0);
98 int nOutputs = (int)VarInt.ReadVarInt(ref wBytes);
99 vout = new CTxOut[nOutputs];
101 for (int nCurrentOutput = 0; nCurrentOutput < nOutputs; nCurrentOutput++)
103 // Fill outputs array
104 vout[nCurrentOutput] = new CTxOut();
105 vout[nCurrentOutput].nValue = BitConverter.ToUInt64(wBytes.GetItems(8), 0);
107 int nScriptPKLen = (int)VarInt.ReadVarInt(ref wBytes);
108 vout[nCurrentOutput].scriptPubKey = new CScript(wBytes.GetItems(nScriptPKLen));
111 nLockTime = BitConverter.ToUInt32(wBytes.GetItems(4), 0);
115 /// Read transactions array which is encoded in the block body.
117 /// <param name="wTxBytes">Bytes sequence</param>
118 /// <returns>Transactions array</returns>
119 public static CTransaction[] ReadTransactionsList(ref WrappedList<byte> wTxBytes)
123 // Read amount of transactions
124 int nTransactions = (int) VarInt.ReadVarInt(ref wTxBytes);
125 tx = new CTransaction[nTransactions];
127 for (int nTx = 0; nTx < nTransactions; nTx++)
129 // Fill the transactions array
130 tx[nTx] = new CTransaction();
132 tx[nTx].nVersion = BitConverter.ToUInt32(wTxBytes.GetItems(4), 0);
133 tx[nTx].nTime = BitConverter.ToUInt32(wTxBytes.GetItems(4), 0);
136 tx[nTx].vin = CTxIn.ReadTxInList(ref wTxBytes);
139 tx[nTx].vout = CTxOut.ReadTxOutList(ref wTxBytes);
141 tx[nTx].nLockTime = BitConverter.ToUInt32(wTxBytes.GetItems(4), 0);
147 public IList<byte> Bytes
151 List<byte> resultBytes = new List<byte>();
153 // Typical transaction example:
155 // 01000000 -- version
156 // 78b4c953 -- timestamp
157 // 06 -- amount of txins
158 // 340d96b77ec4ee9d42b31cadc2fab911e48d48c36274d516f226d5e85bbc512c -- txin hash
159 // 01000000 -- txin outnumber
160 // 6b -- txin scriptSig length
161 // 483045022100c8df1fc17b6ea1355a39b92146ec67b3b53565e636e028010d3a8a87f6f805f202203888b9b74df03c3960773f2a81b2dfd1efb08bb036a8f3600bd24d5ed694cd5a0121030dd13e6d3c63fa10cc0b6bf968fbbfcb9a988b333813b1f22d04fa60e344bc4c -- txin scriptSig
162 // ffffffff -- txin nSequence
163 // 364c640420de8fa77313475970bf09ce4d0b1f8eabb8f1d6ea49d90c85b202ee -- txin hash
164 // 01000000 -- txin outnumber
165 // 6b -- txin scriptSig length
166 // 483045022100b651bf3a6835d714d2c990c742136d769258d0170c9aac24803b986050a8655b0220623651077ff14b0a9d61e30e30f2c15352f70491096f0ec655ae1c79a44e53aa0121030dd13e6d3c63fa10cc0b6bf968fbbfcb9a988b333813b1f22d04fa60e344bc4c -- txin scriptSig
167 // ffffffff -- txin nSequence
168 // 7adbd5f2e521f567bfea2cb63e65d55e66c83563fe253464b75184a5e462043d -- txin hash
169 // 00000000 -- txin outnumber
170 // 6a -- txin scriptSig length
171 // 4730440220183609f2b995993acc9df241aff722d48b9a731b0cd376212934565723ed81f00220737e7ce75ef39bdc061d0dcdba3ee24e43b899696a7c96803cee0a79e1f78ecb0121030dd13e6d3c63fa10cc0b6bf968fbbfcb9a988b333813b1f22d04fa60e344bc4c -- txin scriptSig
172 // ffffffff -- txin nSequence
173 // 999eb03e00a41c2f9fde8865a554ceebbc48d30f4c8ba22dd88da8c9b46fa920 -- txin hash
174 // 03000000 -- txin outnumber
175 // 6b -- txin scriptSig length
176 // 483045022100ec1ab104ef086ba79b0f2611ebf1bfdd22a7a1020f6630fa1c6707546626e0db022056093d4048a999392185ccc735ef736a5497bd68f60b42e6c0c93ba770b54d010121030dd13e6d3c63fa10cc0b6bf968fbbfcb9a988b333813b1f22d04fa60e344bc4c -- txin scriptSig
177 // ffffffff -- txin nSequence
178 // c0543b86be257ddd85b014a76718a70fab9eaa3c477460e4ca187094d86f369c -- txin hash
179 // 05000000 -- txin outnumber
180 // 69 -- txin scriptSig length
181 // 463043021f24275c72f952043174daf01d7f713f878625f0522124a3cab48a0a2e12604202201b47742e6697b0ebdd1e4ba49c74baf142a0228ad0e0ee847488994c9dce78470121030dd13e6d3c63fa10cc0b6bf968fbbfcb9a988b333813b1f22d04fa60e344bc4c -- txin scriptSig
182 // ffffffff -- txin nSequence
183 // e1793d4519147782293dd1db6d90e461265d91db2cc6889c37209394d42ad10d -- txin hash
184 // 05000000 -- txin outnumber
185 // 6a -- txin scriptSig length
186 // 473044022018a0c3d73b2765d75380614ab36ee8e3c937080894a19166128b1e3357b208fb0220233c9609985f535547381431526867ad0255ec4969afe5c360544992ed6b3ed60121030dd13e6d3c63fa10cc0b6bf968fbbfcb9a988b333813b1f22d04fa60e344bc4c -- txin scriptSig
187 // ffffffff -- txin nSequence
188 // 02 -- amount of txouts
189 // e542000000000000 -- txout value
190 // 19 -- scriptPubKey length
191 // 76a91457d84c814b14bd86bf32f106b733baa693db7dc788ac -- scriptPubKey
192 // 409c000000000000 -- txout value
193 // 19 -- scriptPubKey length
194 // 76a91408c8768d5d6bf7c1d9609da4e766c3f1752247b188ac -- scriptPubKey
195 // 00000000 -- lock time
197 resultBytes.AddRange(BitConverter.GetBytes(nVersion));
198 resultBytes.AddRange(BitConverter.GetBytes(nTime));
199 resultBytes.AddRange(VarInt.EncodeVarInt(vin.LongLength));
201 foreach (CTxIn input in vin)
203 resultBytes.AddRange(input.Bytes);
206 resultBytes.AddRange(VarInt.EncodeVarInt(vout.LongLength));
208 foreach (CTxOut output in vout)
210 resultBytes.AddRange(output.Bytes);
213 resultBytes.AddRange(BitConverter.GetBytes(nLockTime));
219 public override string ToString()
221 StringBuilder sb = new StringBuilder();
223 sb.AppendFormat("CTransaction(\n nVersion={0},\n nTime={1},\n", nVersion, nTime);
225 foreach (CTxIn txin in vin)
227 sb.AppendFormat(" {0},\n", txin.ToString());
230 foreach (CTxOut txout in vout)
232 sb.AppendFormat(" {0},\n", txout.ToString());
235 sb.AppendFormat("\nnLockTime={0}\n)", nLockTime);
237 return sb.ToString();