Novacoin/CNovacoinAddress.cs

   1 \feff/**
   2  *  Novacoin classes library
   3  *  Copyright (C) 2015 Alex D. (balthazar.ad@gmail.com)
   4
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU Affero General Public License as
   7  *  published by the Free Software Foundation, either version 3 of the
   8  *  License, or (at your option) any later version.
   9
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU Affero General Public License for more details.
  14
  15  *  You should have received a copy of the GNU Affero General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 using System.Collections.Generic;
  20 using System.Linq;
  21
  22 namespace Novacoin
  23 {
  24     /// <summary>
  25     /// Available address types
  26     /// </summary>
  27     public enum AddrType
  28     {
  29         PUBKEY_ADDRESS = 8,
  30         SCRIPT_ADDRESS = 20,
  31         PUBKEY_ADDRESS_TEST = 111,
  32         SCRIPT_ADDRESS_TEST = 196
  33     };
  34
  35     /// <summary>
  36     /// Represents novacoin address
  37     /// </summary>
  38     public class CNovacoinAddress
  39     {
  40         private byte nVersion;
  41         private List<byte> addrData;
  42
  43         /// <summary>
  44         /// Initialize with custom data and version
  45         /// </summary>
  46         /// <param name="nVersionIn"></param>
  47         /// <param name="addrDataIn"></param>
  48         public CNovacoinAddress(byte nVersionIn, byte[] addrDataIn)
  49         {
  50             nVersion = nVersionIn;
  51             addrData = new List<byte>(addrDataIn);
  52         }
  53
  54         /// <summary>
  55         /// Initialize new instance of PUBKEY_ADDRESS
  56         /// </summary>
  57         /// <param name="keyID">CKeyID instance</param>
  58         public CNovacoinAddress(CKeyID keyID)
  59         {
  60             nVersion = (byte)AddrType.PUBKEY_ADDRESS;
  61             addrData = new List<byte>(keyID.hashBytes);
  62         }
  63
  64         public CNovacoinAddress(string strNovacoinAddress)
  65         {
  66             addrData = AddressTools.Base58DecodeCheck(strNovacoinAddress).ToList();
  67
  68             nVersion = addrData[0];
  69             addrData.RemoveAt(0);
  70         }
  71
  72         /// <summary>
  73         /// Initialize new instance of SCRIPT_ADDRESS
  74         /// </summary>
  75         /// <param name="keyID">CScriptID instance</param>
  76         public CNovacoinAddress(CScriptID scriptID)
  77         {
  78             nVersion = (byte)AddrType.SCRIPT_ADDRESS;
  79             addrData = new List<byte>(scriptID.hashBytes);
  80         }
  81
  82         public Hash160 Hash
  83         {
  84             get { return new Hash160(addrData.ToArray()); }
  85         }
  86
  87         /// <summary>
  88         /// Basic sanity checking
  89         /// </summary>
  90         public bool IsValid
  91         {
  92             get
  93             {
  94                 // Address data is normally generated by RIPEMD-160 hash function
  95                 int nExpectedSize = 20;
  96
  97                 switch ((AddrType)nVersion)
  98                 {
  99                     case AddrType.PUBKEY_ADDRESS:
 100                         nExpectedSize = 20; // Hash of public key
 101                         break;
 102                     case AddrType.SCRIPT_ADDRESS:
 103                         nExpectedSize = 20; // Hash of CScript
 104                         break;
 105                     case AddrType.PUBKEY_ADDRESS_TEST:
 106                         nExpectedSize = 20;
 107                         break;
 108                     case AddrType.SCRIPT_ADDRESS_TEST:
 109                         nExpectedSize = 20;
 110                         break;
 111                     default:
 112                         return false;
 113                 }
 114
 115                 return addrData.Count == nExpectedSize;
 116             }
 117         }
 118
 119         /// <summary>
 120         /// Generate base58 serialized representation of novacoin address
 121         /// </summary>
 122         /// <returns>Base58(data + checksum)</returns>
 123         public override string ToString()
 124         {
 125             var r = new List<byte>();
 126
 127             r.Add(nVersion);
 128             r.AddRange(addrData);
 129
 130             return AddressTools.Base58EncodeCheck(r.ToArray());
 131         }
 132     }
 133 }