-\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.Linq;
using System.Text;
using System.Collections.Generic;
}
/// <summary>
- /// Return a new instance of WrappedList object for current code bytes
+ /// Return a new instance of ByteQueue object for current code bytes
/// </summary>
/// <returns></returns>
- public WrappedList<byte> GetWrappedList()
+ public ByteQueue GetByteQUeue()
{
- return new WrappedList<byte>(codeBytes);
+ return new ByteQueue(codeBytes);
}
/// <summary>
/// Adds specified operation to opcode bytes list
/// </summary>
/// <param name="opcode"></param>
- public void AddOp(opcodetype opcode)
+ public void AddOp(instruction opcode)
{
- if (opcode < opcodetype.OP_0 || opcode > opcodetype.OP_INVALIDOPCODE)
+ if (opcode < instruction.OP_0 || opcode > instruction.OP_INVALIDOPCODE)
{
throw new CScriptException("CScript::AddOp() : invalid opcode");
}
/// <summary>
/// Create new OP_PUSHDATAn operator and add it to opcode bytes list
/// </summary>
- /// <param name="dataBytes">List of data bytes</param>
- public void PushData(IList<byte> dataBytes)
+ /// <param name="dataBytes">Set of data bytes</param>
+ public void PushData(byte[] dataBytes)
{
- long nCount = dataBytes.LongCount();
+ var nCount = dataBytes.LongLength;
- if (nCount < (int)opcodetype.OP_PUSHDATA1)
+ if (nCount < (int)instruction.OP_PUSHDATA1)
{
// OP_0 and OP_FALSE
codeBytes.Add((byte)nCount);
else if (nCount < 0xff)
{
// OP_PUSHDATA1 0x01 [0x5a]
- codeBytes.Add((byte)opcodetype.OP_PUSHDATA1);
+ codeBytes.Add((byte)instruction.OP_PUSHDATA1);
codeBytes.Add((byte)nCount);
}
else if (nCount < 0xffff)
{
// OP_PUSHDATA1 0x00 0x01 [0x5a]
- codeBytes.Add((byte)opcodetype.OP_PUSHDATA2);
+ codeBytes.Add((byte)instruction.OP_PUSHDATA2);
byte[] szBytes = Interop.BEBytes((ushort)nCount);
codeBytes.AddRange(szBytes);
else if (nCount < 0xffffffff)
{
// OP_PUSHDATA1 0x00 0x00 0x00 0x01 [0x5a]
- codeBytes.Add((byte)opcodetype.OP_PUSHDATA4);
+ codeBytes.Add((byte)instruction.OP_PUSHDATA4);
byte[] szBytes = Interop.BEBytes((uint)nCount);
codeBytes.AddRange(szBytes);
/// </summary>
/// <param name="pattern">Pattern sequence</param>
/// <returns>Matches enumerator</returns>
- private IEnumerable<int> FindPattern(IList<byte> pattern)
+ private IEnumerable<int> FindPattern(byte[] pattern)
{
for (int i = 0; i < codeBytes.Count; i++)
{
- if (codeBytes.Skip(i).Take(pattern.Count).SequenceEqual(pattern))
+ if (codeBytes.Skip(i).Take(pattern.Length).SequenceEqual(pattern))
{
yield return i;
}
/// </summary>
/// <param name="pattern">Pattern sequence</param>
/// <returns>Matches number</returns>
- public int RemovePattern(IList<byte> pattern)
+ public int RemovePattern(byte[] pattern)
{
- List<byte> resultBytes = new List<byte>(codeBytes);
+ var resultBytes = new List<byte>(codeBytes);
int count = 0;
- int patternLen = pattern.Count;
foreach (int i in FindPattern(pattern))
{
- resultBytes.RemoveRange(i - count * patternLen, patternLen);
+ resultBytes.RemoveRange(i - count * pattern.Length, pattern.Length);
count++;
}
/// <summary>
/// Is it true that script doesn't contain anything except push value operations?
/// </summary>
- /// <returns>Checking result</returns>
- public bool IsPushonly
+ public bool IsPushOnly
{
get
{
- WrappedList<byte> wCodeBytes = new WrappedList<byte>(codeBytes);
+ var wCodeBytes = new ByteQueue(codeBytes);
- opcodetype opcode; // Current opcode
- IEnumerable<byte> pushArgs; // OP_PUSHDATAn argument
+ instruction opcode; // Current opcode
+ byte[] pushArgs; // OP_PUSHDATAn argument
// Scan opcodes sequence
while (ScriptCode.GetOp(ref wCodeBytes, out opcode, out pushArgs))
{
- if (opcode > opcodetype.OP_16)
+ if (opcode > instruction.OP_16)
{
// We don't allow control opcodes here
return false;
/// <summary>
/// Is it true that script doesn't contain non-canonical push operations?
/// </summary>
- /// <returns>Checking result</returns>
public bool HasOnlyCanonicalPushes
{
get
{
- WrappedList<byte> wCodeBytes = new WrappedList<byte>(codeBytes);
+ var wCodeBytes = new ByteQueue(codeBytes);
- opcodetype opcode; // Current opcode
- IEnumerable<byte> pushArgs; // OP_PUSHDATAn argument
+ byte[] pushArgs; // OP_PUSHDATAn argument
+ instruction opcode; // Current opcode
// Scan opcodes sequence
while (ScriptCode.GetOp(ref wCodeBytes, out opcode, out pushArgs))
{
- byte[] data = pushArgs.ToArray();
+ var data = pushArgs;
- if (opcode < opcodetype.OP_PUSHDATA1 && opcode > opcodetype.OP_0 && (data.Length == 1 && data[0] <= 16))
+ if (opcode < instruction.OP_PUSHDATA1 && opcode > instruction.OP_0 && (data.Length == 1 && data[0] <= 16))
{
// Could have used an OP_n code, rather than a 1-byte push.
return false;
}
- if (opcode == opcodetype.OP_PUSHDATA1 && data.Length < (int)opcodetype.OP_PUSHDATA1)
+ if (opcode == instruction.OP_PUSHDATA1 && data.Length < (int)instruction.OP_PUSHDATA1)
{
// Could have used a normal n-byte push, rather than OP_PUSHDATA1.
return false;
}
- if (opcode == opcodetype.OP_PUSHDATA2 && data.Length <= 0xFF)
+ if (opcode == instruction.OP_PUSHDATA2 && data.Length <= 0xFF)
{
// Could have used an OP_PUSHDATA1.
return false;
}
- if (opcode == opcodetype.OP_PUSHDATA4 && data.LongLength <= 0xFFFF)
+ if (opcode == instruction.OP_PUSHDATA4 && data.LongLength <= 0xFFFF)
{
// Could have used an OP_PUSHDATA2.
return false;
/// <summary>
/// Quick test for pay-to-script-hash CScripts
/// </summary>
- /// <returns>Checking result</returns>
public bool IsPayToScriptHash
{
get
// Sender provides redeem script hash, receiver provides signature list and redeem script
// OP_HASH160 20 [20 byte hash] OP_EQUAL
return (codeBytes.Count() == 23 &&
- codeBytes[0] == (byte)opcodetype.OP_HASH160 &&
+ codeBytes[0] == (byte)instruction.OP_HASH160 &&
codeBytes[1] == 0x14 && // 20 bytes hash length prefix
- codeBytes[22] == (byte)opcodetype.OP_EQUAL);
+ codeBytes[22] == (byte)instruction.OP_EQUAL);
}
}
/// <summary>
/// Quick test for pay-to-pubkeyhash CScripts
/// </summary>
- /// <returns>Checking result</returns>
public bool IsPayToPubKeyHash
{
get
// Sender provides hash of pubkey, receiver provides signature and pubkey
// OP_DUP OP_HASH160 20 [20 byte hash] OP_EQUALVERIFY OP_CHECKSIG
return (codeBytes.Count == 25 &&
- codeBytes[0] == (byte)opcodetype.OP_DUP &&
- codeBytes[1] == (byte)opcodetype.OP_HASH160 &&
+ codeBytes[0] == (byte)instruction.OP_DUP &&
+ codeBytes[1] == (byte)instruction.OP_HASH160 &&
codeBytes[2] == 0x14 && // 20 bytes hash length prefix
- codeBytes[23] == (byte)opcodetype.OP_EQUALVERIFY &&
- codeBytes[24] == (byte)opcodetype.OP_CHECKSIG);
+ codeBytes[23] == (byte)instruction.OP_EQUALVERIFY &&
+ codeBytes[24] == (byte)instruction.OP_CHECKSIG);
}
}
/// <summary>
+ /// Quick test for Null destination
+ /// </summary>
+ public bool IsNull
+ {
+ get { return codeBytes.Count == 0; }
+ }
+
+ /// <summary>
/// Pre-version-0.6, Bitcoin always counted CHECKMULTISIGs
/// as 20 sigops. With pay-to-script-hash, that changed:
/// CHECKMULTISIGs serialized in scriptSigs are
/// <returns>Amount of sigops</returns>
public int GetSigOpCount(bool fAccurate)
{
- WrappedList<byte> wCodeBytes = new WrappedList<byte>(codeBytes);
+ var wCodeBytes = new ByteQueue(codeBytes);
- opcodetype opcode; // Current opcode
- IEnumerable<byte> pushArgs; // OP_PUSHDATAn argument
+ instruction opcode; // Current opcode
+ byte[] pushArgs; // OP_PUSHDATAn argument
int nCount = 0;
- opcodetype lastOpcode = opcodetype.OP_INVALIDOPCODE;
+ var lastOpcode = instruction.OP_INVALIDOPCODE;
// Scan opcodes sequence
while (ScriptCode.GetOp(ref wCodeBytes, out opcode, out pushArgs))
{
- if (opcode == opcodetype.OP_CHECKSIG || opcode == opcodetype.OP_CHECKSIGVERIFY)
+ if (opcode == instruction.OP_CHECKSIG || opcode == instruction.OP_CHECKSIGVERIFY)
{
nCount++;
}
- else if (opcode == opcodetype.OP_CHECKMULTISIG || opcode == opcodetype.OP_CHECKMULTISIGVERIFY)
+ else if (opcode == instruction.OP_CHECKMULTISIG || opcode == instruction.OP_CHECKMULTISIGVERIFY)
{
- if (fAccurate && lastOpcode >= opcodetype.OP_1 && lastOpcode <= opcodetype.OP_16)
+ if (fAccurate && lastOpcode >= instruction.OP_1 && lastOpcode <= instruction.OP_16)
{
nCount += ScriptCode.DecodeOP_N(lastOpcode);
}
// This is a pay-to-script-hash scriptPubKey;
// get the last item that the scriptSig
// pushes onto the stack:
- WrappedList<byte> wScriptSig = scriptSig.GetWrappedList();
+ ByteQueue wScriptSig = scriptSig.GetByteQUeue();
- opcodetype opcode; // Current opcode
- IEnumerable<byte> pushArgs; // OP_PUSHDATAn argument
+ instruction opcode; // Current opcode
+ byte[] pushArgs; // OP_PUSHDATAn argument
while (ScriptCode.GetOp(ref wScriptSig, out opcode, out pushArgs))
{
- if (opcode > opcodetype.OP_16)
+ if (opcode > instruction.OP_16)
{
return 0;
}
}
/// ... and return its opcount:
- CScript subScript = new CScript(pushArgs);
+ var subScript = new CScript(pushArgs);
return subScript.GetSigOpCount(true);
}
+ /// <summary>
+ /// Set pay-to-pubkey destination.
+ /// </summary>
+ /// <param name="pubKey">Instance of CPubKey.</param>
+ public void SetDestination(CPubKey pubKey)
+ {
+ codeBytes.Clear();
+ PushData(pubKey.PublicBytes);
+ AddOp(instruction.OP_CHECKSIG);
+ }
+
+ /// <summary>
+ /// Set pay-to-pubkeyhash destination
+ /// </summary>
+ /// <param name="ID">Public key hash</param>
public void SetDestination(CKeyID ID)
{
codeBytes.Clear();
- AddOp(opcodetype.OP_DUP);
- AddOp(opcodetype.OP_HASH160);
+ AddOp(instruction.OP_DUP);
+ AddOp(instruction.OP_HASH160);
AddHash(ID);
- AddOp(opcodetype.OP_EQUAL);
+ AddOp(instruction.OP_EQUALVERIFY);
+ AddOp(instruction.OP_CHECKSIG);
}
+ /// <summary>
+ /// Set pay-to-scripthash destination
+ /// </summary>
+ /// <param name="ID">Script hash</param>
public void SetDestination(CScriptID ID)
{
codeBytes.Clear();
- AddOp(opcodetype.OP_HASH160);
+ AddOp(instruction.OP_HASH160);
AddHash(ID);
- AddOp(opcodetype.OP_EQUAL);
+ AddOp(instruction.OP_EQUAL);
}
/// <summary>
codeBytes.Clear();
}
- public void SetMultiSig(int nRequired, IEnumerable<CPubKey> keys)
+ /// <summary>
+ /// Set multisig destination.
+ /// </summary>
+ /// <param name="nRequired">Amount of required signatures.</param>
+ /// <param name="keys">Set of public keys.</param>
+ public void SetMultiSig(int nRequired, CPubKey[] keys)
{
codeBytes.Clear();
AddOp(ScriptCode.EncodeOP_N(nRequired));
- foreach (CPubKey key in keys)
+ foreach (var key in keys)
{
- PushData(key.PublicBytes.ToList());
+ PushData(key.PublicBytes);
}
- AddOp(ScriptCode.EncodeOP_N(keys.Count()));
- AddOp(opcodetype.OP_CHECKMULTISIG);
+
+ AddOp(ScriptCode.EncodeOP_N(keys.Length));
+ AddOp(instruction.OP_CHECKMULTISIG);
}
/// <summary>
/// Access to script code.
/// </summary>
- public IEnumerable<byte> Bytes
+ public byte[] Bytes
+ {
+ get { return codeBytes.ToArray(); }
+ }
+
+ public CScriptID ScriptID
{
- get { return codeBytes; }
+ get { return new CScriptID(Hash160.Compute160(codeBytes.ToArray())); }
}
/// <summary>
/// <returns>Code listing</returns>
public override string ToString()
{
- StringBuilder sb = new StringBuilder();
- WrappedList<byte> wCodeBytes = new WrappedList<byte>(codeBytes);
+ var sb = new StringBuilder();
+ var wCodeBytes = new ByteQueue(codeBytes);
- opcodetype opcode; // Current opcode
- IEnumerable<byte> pushArgs; // OP_PUSHDATAn argument
+ instruction opcode; // Current opcode
+ byte[] pushArgs; // OP_PUSHDATAn argument
while (ScriptCode.GetOp(ref wCodeBytes, out opcode, out pushArgs))
{
if (sb.Length != 0)
sb.Append(" ");
}
- if (0 <= opcode && opcode <= opcodetype.OP_PUSHDATA4)
+ if (0 <= opcode && opcode <= instruction.OP_PUSHDATA4)
{
sb.Append(ScriptCode.ValueString(pushArgs));
}
}
}
}
-
git://git.novaco.in / NovacoinLibrary.git / blobdiff