X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=Novacoin%2FCTransaction.cs;h=343968a1c674d9feab3a860f7b1a9a3b2dd02ab0;hb=e817cfa60d6a7d7d724e6cd3ec3a04239aae1ac2;hp=792c4263092f7df3aefca8f86f1759c9a3d0a642;hpb=5dbcc039601f59dda25f856dcf2f6fa13e9c72aa;p=NovacoinLibrary.git

diff --git a/Novacoin/CTransaction.cs b/Novacoin/CTransaction.cs
index 792c426..343968a 100644
--- a/Novacoin/CTransaction.cs
+++ b/Novacoin/CTransaction.cs
@@ -1,4 +1,22 @@
-using System;
+/**
+ *  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;
 
@@ -12,12 +30,12 @@ namespace Novacoin
         /// <summary>
         /// Version of transaction schema.
         /// </summary>
-        public uint nVersion = 1;
+        public uint nVersion;
 
         /// <summary>
         /// Transaction timestamp.
         /// </summary>
-        public uint nTime = 0;
+        public uint nTime;
 
         /// <summary>
         /// Array of transaction inputs
@@ -32,7 +50,7 @@ namespace Novacoin
         /// <summary>
         /// Block height or timestamp when transaction is final
         /// </summary>
-        public uint nLockTime = 0;
+        public uint nLockTime;
 
         /// <summary>
         /// Initialize an empty instance
@@ -42,8 +60,11 @@ namespace Novacoin
             // 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.
+            nVersion = 1;
+            nTime = 0;
             vin = new CTxIn[0];
             vout = new CTxOut[0];
+            nLockTime = 0;
         }
 
         /// <summary>
@@ -77,14 +98,14 @@ namespace Novacoin
         /// Parse byte sequence and initialize new instance of CTransaction
         /// </summary>
         /// <param name="txBytes">Byte sequence</param>
-		public CTransaction(IList<byte> txBytes)
+		public CTransaction(byte[] txBytes)
         {
-            ByteQueue wBytes = new ByteQueue(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();
+            int nInputs = (int)wBytes.GetVarInt();
             vin = new CTxIn[nInputs];
 
             for (int nCurrentInput = 0; nCurrentInput < nInputs; nCurrentInput++)
@@ -107,7 +128,7 @@ namespace Novacoin
             {
                 // Fill outputs array
                 vout[nCurrentOutput] = new CTxOut();
-                vout[nCurrentOutput].nValue = BitConverter.ToInt64(wBytes.Get(8), 0);
+                vout[nCurrentOutput].nValue = BitConverter.ToUInt64(wBytes.Get(8), 0);
 
                 int nScriptPKLen = (int)wBytes.GetVarInt();
                 vout[nCurrentOutput].scriptPubKey = new CScript(wBytes.Get(nScriptPKLen));
@@ -117,17 +138,41 @@ namespace Novacoin
         }
 
         /// <summary>
+        /// Serialized size
+        /// </summary>
+        public int Size
+        {
+            get
+            {
+                int nSize = 12; // nVersion, nTime, nLockLime
+
+                nSize += VarInt.GetEncodedSize(vin.Length);
+                nSize += VarInt.GetEncodedSize(vout.Length);
+
+                foreach (var input in vin)
+                {
+                    nSize += input.Size;
+                }
+
+                foreach (var output in vout)
+                {
+                    nSize += output.Size;
+                }
+
+                return nSize;
+            }
+        }
+
+        /// <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)
         {
-            CTransaction[] tx;
-
             // Read amount of transactions
             int nTransactions = (int)wTxBytes.GetVarInt();
-            tx = new CTransaction[nTransactions];
+            var tx = new CTransaction[nTransactions];
 
             for (int nTx = 0; nTx < nTransactions; nTx++)
             {
@@ -162,91 +207,54 @@ namespace Novacoin
             }
         }
 
+        /// <summary>
+        /// Transaction hash
+        /// </summary>
+        public Hash256 Hash
+        {
+            get { return Hash256.Compute256(this); }
+        }
 
-        public IList<byte> Bytes
+        /// <summary>
+        /// A sequence of bytes, which corresponds to the current state of CTransaction.
+        /// </summary>
+        public static implicit operator byte[] (CTransaction tx)
         {
-            get
-            {
-                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(BitConverter.GetBytes(nVersion));
-                resultBytes.AddRange(BitConverter.GetBytes(nTime));
-                resultBytes.AddRange(VarInt.EncodeVarInt(vin.LongLength));
-
-                foreach (CTxIn input in vin)
-                {
-                    resultBytes.AddRange(input.Bytes);
-                }
+            var resultBytes = new List<byte>();
 
-                resultBytes.AddRange(VarInt.EncodeVarInt(vout.LongLength));
+            resultBytes.AddRange(BitConverter.GetBytes(tx.nVersion));
+            resultBytes.AddRange(BitConverter.GetBytes(tx.nTime));
+            resultBytes.AddRange(VarInt.EncodeVarInt(tx.vin.LongLength));
 
-                foreach (CTxOut output in vout)
-                {
-                    resultBytes.AddRange(output.Bytes);
-                }
+            foreach (var input in tx.vin)
+            {
+                resultBytes.AddRange((byte[])input);
+            }
 
-                resultBytes.AddRange(BitConverter.GetBytes(nLockTime));
+            resultBytes.AddRange(VarInt.EncodeVarInt(tx.vout.LongLength));
 
-                return resultBytes;
+            foreach (var output in tx.vout)
+            {
+                resultBytes.AddRange((byte[])output);
             }
+
+            resultBytes.AddRange(BitConverter.GetBytes(tx.nLockTime));
+
+            return resultBytes.ToArray();
         }
 
         public override string ToString()
         {
-            StringBuilder sb = new StringBuilder();
+            var sb = new StringBuilder();
 
             sb.AppendFormat("CTransaction(\n nVersion={0},\n nTime={1},\n", nVersion, nTime);
 
-            foreach (CTxIn txin in vin)
+            foreach (var txin in vin)
             {
                 sb.AppendFormat(" {0},\n", txin.ToString());
             }
 
-            foreach (CTxOut txout in vout)
+            foreach (var txout in vout)
             {
                 sb.AppendFormat(" {0},\n", txout.ToString());
             }