/// <summary>
/// Parses a Bitcoin transaction output.
/// </summary>
/// <param name="blockMemoryStreamReader">
/// Provides access to a section of the Bitcoin blockchain file.
/// </param>
/// <returns>
/// The Bitcoin transaction output that was parsed.
/// </returns>
private static TransactionOutput ParseTransactionOutput(BlockMemoryStreamReader blockMemoryStreamReader)
{
TransactionOutput transactionOutput = new TransactionOutput();
transactionOutput.OutputValueSatoshi = blockMemoryStreamReader.ReadUInt64();
int scriptLength = (int)blockMemoryStreamReader.ReadVariableLengthInteger();
byte[] OutputScriptBytes = blockMemoryStreamReader.ReadBytes(scriptLength);
transactionOutput.OutputScript = new ByteArray(OutputScriptBytes);
//this is new add to parse address, if can't parse the address, set the address = '0'
byte[] outputAddress;
if (scriptLength > 2)
{
using (BlockMemoryStreamReader outputScriptReader = new BlockMemoryStreamReader(OutputScriptBytes))
{
byte first = outputScriptReader.ReadByte();
if (first == 0x6a)//RETURN: can't parse the address
{
outputAddress = System.Text.Encoding.ASCII.GetBytes("0");
}
else if (first == 0x00 && (OutputScriptBytes[1] == 0x14 || OutputScriptBytes[1] == 0x20))//witness addr
{
int hash_len = outputScriptReader.ReadByte();
byte[] addr_hash = outputScriptReader.ReadBytes(hash_len);
outputAddress = Bench32.SegwitAddrEncode("bc", 0, addr_hash, addr_hash.Length);
}
else if (first == 0x76 && OutputScriptBytes[1] == 0xa9)//normal bitcoin addr,base58check encode and prefix = 0
{
outputScriptReader.ReadByte();
int hash_len = outputScriptReader.ReadByte();
byte[] addr_hash = outputScriptReader.ReadBytes(hash_len);
outputAddress = Base58.EncodeBase58Check(addr_hash, addr_hash.Length, 0);
}
else if (first == 0xa9 && (OutputScriptBytes[1] == 0x14 || OutputScriptBytes[1] == 0x20))//base58check encode and prefix = 5
{
int hash_len = outputScriptReader.ReadByte();
byte[] addr_hash = outputScriptReader.ReadBytes(hash_len);
outputAddress = Base58.EncodeBase58Check(addr_hash, addr_hash.Length, 1);
}
else if (first == 0x41)//非压缩公钥
{
byte[] bitcoin_addr = outputScriptReader.ReadBytes(65);
byte[] addr_hash = Hash160.hash160(bitcoin_addr);
outputAddress = Base58.EncodeBase58Check(addr_hash, addr_hash.Length, 0);
}
else
{
/*
* string str = string.Empty;
* foreach (byte item in OutputScriptBytes)
* {
* str += string.Format("{0:x2}", item);
* }
* Console.WriteLine(str);
*/
outputAddress = System.Text.Encoding.ASCII.GetBytes("0");
}
}
}
else
{
/*
* Console.WriteLine(scriptLength);
* string str = string.Empty;
* foreach (byte item in OutputScriptBytes)
* {
* str += string.Format("{0:x2}", item);
* }
* Console.WriteLine(str);
*/
outputAddress = System.Text.Encoding.ASCII.GetBytes("0");
}
transactionOutput.OutputAddress = new ByteArray(outputAddress);
return(transactionOutput);
}