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243 rindas
7.9 KiB

#include "transactionrecord.h"
#include "wallet.h"
/* Return positive answer if transaction should be shown in list.
*/
bool TransactionRecord::showTransaction(const CWalletTx &wtx)
{
if (wtx.IsCoinBase())
{
// Don't show generated coin until confirmed by at least one block after it
// so we don't get the user's hopes up until it looks like it's probably accepted.
//
// It is not an error when generated blocks are not accepted. By design,
// some percentage of blocks, like 10% or more, will end up not accepted.
// This is the normal mechanism by which the network copes with latency.
//
// We display regular transactions right away before any confirmation
// because they can always get into some block eventually. Generated coins
// are special because if their block is not accepted, they are not valid.
//
if (wtx.GetDepthInMainChain() < 2)
{
return false;
}
}
return true;
}
/*
* Decompose CWallet transaction to model transaction records.
*/
QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *wallet, const CWalletTx &wtx)
{
QList<TransactionRecord> parts;
int64 nTime = wtx.GetTxTime();
int64 nCredit = wtx.GetCredit(true);
int64 nDebit = wtx.GetDebit();
int64 nNet = nCredit - nDebit;
uint256 hash = wtx.GetHash();
std::map<std::string, std::string> mapValue = wtx.mapValue;
if (showTransaction(wtx))
{
if (nNet > 0 || wtx.IsCoinBase())
{
//
// Credit
//
BOOST_FOREACH(const CTxOut& txout, wtx.vout)
{
if(wallet->IsMine(txout))
{
TransactionRecord sub(hash, nTime);
CBitcoinAddress address;
sub.idx = parts.size(); // sequence number
sub.credit = txout.nValue;
if (wtx.IsCoinBase())
{
// Generated
sub.type = TransactionRecord::Generated;
}
else if (ExtractAddress(txout.scriptPubKey, address) && wallet->HaveKey(address))
{
// Received by Bitcoin Address
sub.type = TransactionRecord::RecvWithAddress;
sub.address = address.ToString();
}
else
{
// Received by IP connection (deprecated features), or a multisignature or other non-simple transaction
sub.type = TransactionRecord::RecvFromOther;
sub.address = mapValue["from"];
}
parts.append(sub);
}
}
}
else
{
bool fAllFromMe = true;
BOOST_FOREACH(const CTxIn& txin, wtx.vin)
fAllFromMe = fAllFromMe && wallet->IsMine(txin);
bool fAllToMe = true;
BOOST_FOREACH(const CTxOut& txout, wtx.vout)
fAllToMe = fAllToMe && wallet->IsMine(txout);
if (fAllFromMe && fAllToMe)
{
// Payment to self
int64 nChange = wtx.GetChange();
parts.append(TransactionRecord(hash, nTime, TransactionRecord::SendToSelf, "",
-(nDebit - nChange), nCredit - nChange));
}
else if (fAllFromMe)
{
//
// Debit
//
int64 nTxFee = nDebit - wtx.GetValueOut();
for (unsigned int nOut = 0; nOut < wtx.vout.size(); nOut++)
{
const CTxOut& txout = wtx.vout[nOut];
TransactionRecord sub(hash, nTime);
sub.idx = parts.size();
if(wallet->IsMine(txout))
{
// Ignore parts sent to self, as this is usually the change
// from a transaction sent back to our own address.
continue;
}
CBitcoinAddress address;
if (ExtractAddress(txout.scriptPubKey, address))
{
// Sent to Bitcoin Address
sub.type = TransactionRecord::SendToAddress;
sub.address = address.ToString();
}
else
{
// Sent to IP, or other non-address transaction like OP_EVAL
sub.type = TransactionRecord::SendToOther;
sub.address = mapValue["to"];
}
int64 nValue = txout.nValue;
/* Add fee to first output */
if (nTxFee > 0)
{
nValue += nTxFee;
nTxFee = 0;
}
sub.debit = -nValue;
parts.append(sub);
}
}
else
{
//
// Mixed debit transaction, can't break down payees
//
parts.append(TransactionRecord(hash, nTime, TransactionRecord::Other, "", nNet, 0));
}
}
}
return parts;
}
void TransactionRecord::updateStatus(const CWalletTx &wtx)
{
// Determine transaction status
// Find the block the tx is in
CBlockIndex* pindex = NULL;
std::map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(wtx.hashBlock);
if (mi != mapBlockIndex.end())
pindex = (*mi).second;
// Sort order, unrecorded transactions sort to the top
status.sortKey = strprintf("%010d-%01d-%010u-%03d",
(pindex ? pindex->nHeight : std::numeric_limits<int>::max()),
(wtx.IsCoinBase() ? 1 : 0),
wtx.nTimeReceived,
idx);
status.confirmed = wtx.IsConfirmed();
status.depth = wtx.GetDepthInMainChain();
status.cur_num_blocks = nBestHeight;
if (!wtx.IsFinal())
{
if (wtx.nLockTime < LOCKTIME_THRESHOLD)
{
status.status = TransactionStatus::OpenUntilBlock;
status.open_for = nBestHeight - wtx.nLockTime;
}
else
{
status.status = TransactionStatus::OpenUntilDate;
status.open_for = wtx.nLockTime;
}
}
else
{
if (GetAdjustedTime() - wtx.nTimeReceived > 2 * 60 && wtx.GetRequestCount() == 0)
{
status.status = TransactionStatus::Offline;
}
else if (status.depth < NumConfirmations)
{
status.status = TransactionStatus::Unconfirmed;
}
else
{
status.status = TransactionStatus::HaveConfirmations;
}
}
// For generated transactions, determine maturity
if(type == TransactionRecord::Generated)
{
int64 nCredit = wtx.GetCredit(true);
if (nCredit == 0)
{
status.maturity = TransactionStatus::Immature;
if (wtx.IsInMainChain())
{
status.matures_in = wtx.GetBlocksToMaturity();
// Check if the block was requested by anyone
if (GetAdjustedTime() - wtx.nTimeReceived > 2 * 60 && wtx.GetRequestCount() == 0)
status.maturity = TransactionStatus::MaturesWarning;
}
else
{
status.maturity = TransactionStatus::NotAccepted;
}
}
else
{
status.maturity = TransactionStatus::Mature;
}
}
}
bool TransactionRecord::statusUpdateNeeded()
{
return status.cur_num_blocks != nBestHeight;
}
std::string TransactionRecord::getTxID()
{
return hash.ToString() + strprintf("-%03d", idx);
}