src/qt/transactionrecord.cpp

   1 #include "transactionrecord.h"
   2
   3 #include "wallet.h"
   4 #include "base58.h"
   5
   6 extern CWallet* pwalletMain;
   7
   8 /* Return positive answer if transaction should be shown in list.
   9  */
  10 bool TransactionRecord::showTransaction(const CWalletTx &wtx)
  11 {
  12     if (wtx.IsCoinBase())
  13     {
  14         // Ensures we show generated coins / mined transactions at depth 1
  15         if (!wtx.IsInMainChain())
  16         {
  17             return false;
  18         }
  19     }
  20     return true;
  21 }
  22
  23 /*
  24  * Decompose CWallet transaction to model transaction records.
  25  */
  26 QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *wallet, const CWalletTx &wtx)
  27 {
  28     QList<TransactionRecord> parts;
  29     int64_t nTime = wtx.GetTxTime();
  30     int64_t nCredit = wtx.GetCredit(MINE_ALL);
  31     int64_t nDebit = wtx.GetDebit(MINE_ALL);
  32     int64_t nNet = nCredit - nDebit;
  33     uint256 hash = wtx.GetHash(), hashPrev = 0;
  34     std::map<std::string, std::string> mapValue = wtx.mapValue;
  35
  36     if (nNet > 0 || wtx.IsCoinBase() || wtx.IsCoinStake())
  37     {
  38         //
  39         // Credit
  40         //
  41         BOOST_FOREACH(const CTxOut& txout, wtx.vout)
  42         {
  43             if(wallet->IsMine(txout))
  44             {
  45                 TransactionRecord sub(hash, nTime);
  46                 sub.idx = parts.size(); // sequence number
  47                 sub.credit = txout.nValue;
  48
  49                 std::string address;
  50                 if (pwalletMain->ExtractAddress(txout.scriptPubKey, address))
  51                 {
  52                     sub.type = TransactionRecord::RecvWithAddress;
  53                     sub.address = address;
  54                 }
  55                 else
  56                 {
  57                     // Received by IP connection (deprecated features), or a multisignature or other non-simple transaction
  58                     sub.type = TransactionRecord::RecvFromOther;
  59                     sub.address = mapValue["from"];
  60                 }
  61
  62                 if (wtx.IsCoinBase())
  63                 {
  64                     // Generated (proof-of-work)
  65                     sub.type = TransactionRecord::Generated;
  66                 }
  67                 if (wtx.IsCoinStake())
  68                 {
  69                     // Generated (proof-of-stake)
  70
  71                     if (hashPrev == hash)
  72                         continue; // last coinstake output
  73
  74                     sub.type = TransactionRecord::Generated;
  75                     sub.credit = nNet > 0 ? nNet : wtx.GetValueOut() - nDebit;
  76                     hashPrev = hash;
  77                 }
  78
  79                 parts.append(sub);
  80             }
  81         }
  82     }
  83     else
  84     {
  85         bool fAllFromMe = true;
  86         BOOST_FOREACH(const CTxIn& txin, wtx.vin)
  87             fAllFromMe = fAllFromMe && wallet->IsMine(txin);
  88
  89         bool fAllToMe = true;
  90         BOOST_FOREACH(const CTxOut& txout, wtx.vout)
  91             fAllToMe = fAllToMe && wallet->IsMine(txout);
  92
  93         if (fAllFromMe && fAllToMe)
  94         {
  95             // Payment to self
  96             int64_t nChange = wtx.GetChange();
  97
  98             parts.append(TransactionRecord(hash, nTime, TransactionRecord::SendToSelf, "",
  99                             -(nDebit - nChange), nCredit - nChange));
 100         }
 101         else if (fAllFromMe)
 102         {
 103             //
 104             // Debit
 105             //
 106             int64_t nTxFee = nDebit - wtx.GetValueOut();
 107
 108             for (unsigned int nOut = 0; nOut < wtx.vout.size(); nOut++)
 109             {
 110                 const CTxOut& txout = wtx.vout[nOut];
 111                 TransactionRecord sub(hash, nTime);
 112                 sub.idx = parts.size();
 113
 114                 if(wallet->IsMine(txout))
 115                 {
 116                     // Ignore parts sent to self, as this is usually the change
 117                     // from a transaction sent back to our own address.
 118                     continue;
 119                 }
 120
 121                 CTxDestination address;
 122                 if (ExtractDestination(txout.scriptPubKey, address))
 123                 {
 124                     // Sent to Bitcoin Address
 125                     sub.type = TransactionRecord::SendToAddress;
 126                     sub.address = CBitcoinAddress(address).ToString();
 127                 }
 128                 else
 129                 {
 130                     // Sent to IP, or other non-address transaction like OP_EVAL
 131                     sub.type = TransactionRecord::SendToOther;
 132                     sub.address = mapValue["to"];
 133                 }
 134
 135                 int64_t nValue = txout.nValue;
 136                 /* Add fee to first output */
 137                 if (nTxFee > 0)
 138                 {
 139                     nValue += nTxFee;
 140                     nTxFee = 0;
 141                 }
 142                 sub.debit = -nValue;
 143
 144                 parts.append(sub);
 145             }
 146         }
 147         else
 148         {
 149             //
 150             // Mixed debit transaction, can't break down payees
 151             //
 152             parts.append(TransactionRecord(hash, nTime, TransactionRecord::Other, "", nNet, 0));
 153         }
 154     }
 155
 156     return parts;
 157 }
 158
 159 void TransactionRecord::updateStatus(const CWalletTx &wtx)
 160 {
 161     // Determine transaction status
 162
 163     // Find the block the tx is in
 164     CBlockIndex* pindex = NULL;
 165     std::map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(wtx.hashBlock);
 166     if (mi != mapBlockIndex.end())
 167         pindex = (*mi).second;
 168
 169     // Sort order, unrecorded transactions sort to the top
 170     status.sortKey = strprintf("%010d-%01d-%010u-%03d",
 171         (pindex ? pindex->nHeight : std::numeric_limits<int>::max()),
 172         (wtx.IsCoinBase() ? 1 : 0),
 173         wtx.nTimeReceived,
 174         idx);
 175     status.confirmed = wtx.IsTrusted();
 176     status.depth = wtx.GetDepthInMainChain();
 177     status.cur_num_blocks = nBestHeight;
 178
 179     if (!wtx.IsFinal())
 180     {
 181         if (wtx.nLockTime < LOCKTIME_THRESHOLD)
 182         {
 183             status.status = TransactionStatus::OpenUntilBlock;
 184             status.open_for = nBestHeight - wtx.nLockTime;
 185         }
 186         else
 187         {
 188             status.status = TransactionStatus::OpenUntilDate;
 189             status.open_for = wtx.nLockTime;
 190         }
 191     }
 192     else
 193     {
 194         if (GetAdjustedTime() - wtx.nTimeReceived > 2 * 60 && wtx.GetRequestCount() == 0)
 195         {
 196             status.status = TransactionStatus::Offline;
 197         }
 198         else if (status.depth < NumConfirmations)
 199         {
 200             status.status = TransactionStatus::Unconfirmed;
 201         }
 202         else
 203         {
 204             status.status = TransactionStatus::HaveConfirmations;
 205         }
 206     }
 207
 208     // For generated transactions, determine maturity
 209     if(type == TransactionRecord::Generated)
 210     {
 211         if (wtx.GetBlocksToMaturity() > 0)
 212         {
 213             status.maturity = TransactionStatus::Immature;
 214
 215             if (wtx.IsInMainChain())
 216             {
 217                 status.matures_in = wtx.GetBlocksToMaturity();
 218
 219                 // Check if the block was requested by anyone
 220                 if (GetAdjustedTime() - wtx.nTimeReceived > 2 * 60 && wtx.GetRequestCount() == 0)
 221                     status.maturity = TransactionStatus::MaturesWarning;
 222             }
 223             else
 224             {
 225                 status.maturity = TransactionStatus::NotAccepted;
 226             }
 227         }
 228         else
 229         {
 230             status.maturity = TransactionStatus::Mature;
 231         }
 232     }
 233 }
 234
 235 bool TransactionRecord::statusUpdateNeeded()
 236 {
 237     return status.cur_num_blocks != nBestHeight;
 238 }
 239
 240 std::string TransactionRecord::getTxID()
 241 {
 242     return hash.ToString() + strprintf("-%03d", idx);
 243 }
 244