src/primitives/transaction.cpp

   1 // Copyright (c) 2009-2010 Satoshi Nakamoto
   2 // Copyright (c) 2009-2016 The Bitcoin Core developers
   3 // Distributed under the MIT software license, see the accompanying
   4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   5
   6 #include "primitives/transaction.h"
   7
   8 #include "hash.h"
   9 #include "tinyformat.h"
  10 #include "utilstrencodings.h"
  11
  12 std::string COutPoint::ToString() const
  13 {
  14     return strprintf("COutPoint(%s, %u)", hash.ToString().substr(0,10), n);
  15 }
  16
  17 CTxIn::CTxIn(COutPoint prevoutIn, CScript scriptSigIn, uint32_t nSequenceIn)
  18 {
  19     prevout = prevoutIn;
  20     scriptSig = scriptSigIn;
  21     nSequence = nSequenceIn;
  22 }
  23
  24 CTxIn::CTxIn(uint256 hashPrevTx, uint32_t nOut, CScript scriptSigIn, uint32_t nSequenceIn)
  25 {
  26     prevout = COutPoint(hashPrevTx, nOut);
  27     scriptSig = scriptSigIn;
  28     nSequence = nSequenceIn;
  29 }
  30
  31 std::string CTxIn::ToString() const
  32 {
  33     std::string str;
  34     str += "CTxIn(";
  35     str += prevout.ToString();
  36     if (prevout.IsNull())
  37         str += strprintf(", coinbase %s", HexStr(scriptSig));
  38     else
  39         str += strprintf(", scriptSig=%s", HexStr(scriptSig).substr(0, 24));
  40     if (nSequence != SEQUENCE_FINAL)
  41         str += strprintf(", nSequence=%u", nSequence);
  42     str += ")";
  43     return str;
  44 }
  45
  46 CTxOut::CTxOut(const CAmount& nValueIn, CScript scriptPubKeyIn)
  47 {
  48     nValue = nValueIn;
  49     scriptPubKey = scriptPubKeyIn;
  50 }
  51
  52 std::string CTxOut::ToString() const
  53 {
  54     return strprintf("CTxOut(nValue=%d.%08d, scriptPubKey=%s)", nValue / COIN, nValue % COIN, HexStr(scriptPubKey).substr(0, 30));
  55 }
  56
  57 CMutableTransaction::CMutableTransaction() : nVersion(CTransaction::CURRENT_VERSION), nLockTime(0) {}
  58 CMutableTransaction::CMutableTransaction(const CTransaction& tx) : nVersion(tx.nVersion), vin(tx.vin), vout(tx.vout), nLockTime(tx.nLockTime) {}
  59
  60 uint256 CMutableTransaction::GetHash() const
  61 {
  62     return SerializeHash(*this, SER_GETHASH, SERIALIZE_TRANSACTION_NO_WITNESS);
  63 }
  64
  65 uint256 CTransaction::ComputeHash() const
  66 {
  67     return SerializeHash(*this, SER_GETHASH, SERIALIZE_TRANSACTION_NO_WITNESS);
  68 }
  69
  70 uint256 CTransaction::GetWitnessHash() const
  71 {
  72     if (!HasWitness()) {
  73         return GetHash();
  74     }
  75     return SerializeHash(*this, SER_GETHASH, 0);
  76 }
  77
  78 /* For backward compatibility, the hash is initialized to 0. TODO: remove the need for this default constructor entirely. */
  79 CTransaction::CTransaction() : nVersion(CTransaction::CURRENT_VERSION), vin(), vout(), nLockTime(0), hash() {}
  80 CTransaction::CTransaction(const CMutableTransaction &tx) : nVersion(tx.nVersion), vin(tx.vin), vout(tx.vout), nLockTime(tx.nLockTime), hash(ComputeHash()) {}
  81 CTransaction::CTransaction(CMutableTransaction &&tx) : nVersion(tx.nVersion), vin(std::move(tx.vin)), vout(std::move(tx.vout)), nLockTime(tx.nLockTime), hash(ComputeHash()) {}
  82
  83 CAmount CTransaction::GetValueOut() const
  84 {
  85     CAmount nValueOut = 0;
  86     for (const auto& tx_out : vout) {
  87         nValueOut += tx_out.nValue;
  88         if (!MoneyRange(tx_out.nValue) || !MoneyRange(nValueOut))
  89             throw std::runtime_error(std::string(__func__) + ": value out of range");
  90     }
  91     return nValueOut;
  92 }
  93
  94 unsigned int CTransaction::GetTotalSize() const
  95 {
  96     return ::GetSerializeSize(*this, SER_NETWORK, PROTOCOL_VERSION);
  97 }
  98
  99 std::string CTransaction::ToString() const
 100 {
 101     std::string str;
 102     str += strprintf("CTransaction(hash=%s, ver=%d, vin.size=%u, vout.size=%u, nLockTime=%u)\n",
 103         GetHash().ToString().substr(0,10),
 104         nVersion,
 105         vin.size(),
 106         vout.size(),
 107         nLockTime);
 108     for (const auto& tx_in : vin)
 109         str += "    " + tx_in.ToString() + "\n";
 110     for (const auto& tx_in : vin)
 111         str += "    " + tx_in.scriptWitness.ToString() + "\n";
 112     for (const auto& tx_out : vout)
 113         str += "    " + tx_out.ToString() + "\n";
 114     return str;
 115 }