X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=Novacoin%2FCTxIn.cs;h=067ad4639dabd9b3c46f9df6287e8c30473c4bce;hb=be9d844557911f95165d2c9875c4f5b2822cfc92;hp=4b88d15b855553f7b65e142ed34881b9e316c7d9;hpb=0aa2d5cb7cdb5813440e7afcdbe6014e9b8deeee;p=NovacoinLibrary.git

diff --git a/Novacoin/CTxIn.cs b/Novacoin/CTxIn.cs
index 4b88d15..067ad46 100644
--- a/Novacoin/CTxIn.cs
+++ b/Novacoin/CTxIn.cs
@@ -19,13 +19,32 @@
 using System;
 using System.Text;
 using System.Collections.Generic;
+using System.IO;
 
 namespace Novacoin
 {
-	/// <summary>
-	/// Transaction input.
-	/// </summary>
-	public class CTxIn
+    [Serializable]
+    public class TxInConstructorException : Exception
+    {
+        public TxInConstructorException()
+        {
+        }
+
+        public TxInConstructorException(string message)
+                : base(message)
+        {
+        }
+
+        public TxInConstructorException(string message, Exception inner)
+                : base(message, inner)
+        {
+        }
+    }
+
+    /// <summary>
+    /// Transaction input.
+    /// </summary>
+    public class CTxIn
 	{
         /// <summary>
         /// Previous input data
@@ -69,42 +88,61 @@ namespace Novacoin
         /// <returns>Inputs array</returns>
         public static CTxIn[] ReadTxInList(ref ByteQueue wBytes)
         {
-            // Get amount
-            int nInputs = (int)wBytes.GetVarInt();
-            var vin = new CTxIn[nInputs];
-
-            for (int nIndex = 0; nIndex < nInputs; nIndex++)
+            try
+            {
+                // Get amount
+                int nInputs = (int)wBytes.GetVarInt();
+                var vin = new CTxIn[nInputs];
+
+                for (int nIndex = 0; nIndex < nInputs; nIndex++)
+                {
+                    // Fill inputs array
+                    vin[nIndex] = new CTxIn();
+                    vin[nIndex].prevout = new COutPoint(wBytes.Get(36));
+                    vin[nIndex].scriptSig = new CScript(wBytes.Get((int)wBytes.GetVarInt()));
+                    vin[nIndex].nSequence = BitConverter.ToUInt32(wBytes.Get(4), 0);
+                }
+
+                // Return inputs array
+                return vin;
+            }
+            catch (Exception e)
             {
-                // Fill inputs array
-                vin[nIndex] = new CTxIn();
-                vin[nIndex].prevout = new COutPoint(wBytes.Get(36));
-                vin[nIndex].scriptSig = new CScript(wBytes.Get((int)wBytes.GetVarInt()));
-                vin[nIndex].nSequence = BitConverter.ToUInt32(wBytes.Get(4), 0);
+                throw new TxInConstructorException("Desirealization failed.", e);
             }
+        }
+
+        /// <summary>
+        /// Serialized size
+        /// </summary>
+        public int Size
+        {
+            get {
+                int nSize = 40; // COutPoint, nSequence
+                nSize += VarInt.GetEncodedSize(scriptSig.Size);
+                nSize += scriptSig.Size;
 
-            // Return inputs array
-            return vin;
+                return nSize;
+            }
         }
 
         /// <summary>
         /// Get raw bytes representation of our input.
         /// </summary>
         /// <returns>Byte sequence.</returns>
-        public IList<byte> Bytes
+        public static implicit operator byte[] (CTxIn input)
         {
-            get
-            {
-                var inputBytes = new List<byte>();
-
-                inputBytes.AddRange(prevout.Bytes); // prevout
+            var stream = new MemoryStream();
+            var writer = new BinaryWriter(stream);
 
-                var s = scriptSig.Bytes;
-                inputBytes.AddRange(VarInt.EncodeVarInt(s.Length)); // scriptSig length
-                inputBytes.AddRange(s); // scriptSig
-                inputBytes.AddRange(BitConverter.GetBytes(nSequence)); // Sequence
+            writer.Write(input.prevout); // prevout
+            writer.Write(VarInt.EncodeVarInt(input.scriptSig.Size)); // scriptSig length
+            writer.Write(input.scriptSig); // scriptSig
+            writer.Write(input.nSequence); // nSequence
 
-                return inputBytes;
-            }
+            var inputBytes = stream.ToArray();
+            writer.Close();
+            return inputBytes;
         }
 
         public bool IsFinal
@@ -120,7 +158,7 @@ namespace Novacoin
 
             if(prevout.IsNull)
             {
-                sb.AppendFormat(", coinbase={0}", Interop.ToHex(scriptSig.Bytes));
+                sb.AppendFormat(", coinbase={0}", Interop.ToHex((byte[])scriptSig));
             }
             else
             {
@@ -140,4 +178,3 @@ namespace Novacoin
 
 	}
 }
-