// Check against synchronized checkpoint
bool CheckSync(const uint256& hashBlock, const CBlockIndex* pindexPrev)
{
if (TestNet()) return true; // Testnet has no checkpoints
int nHeight = pindexPrev->nHeight + 1;
LOCK(cs_hashSyncCheckpoint);
// sync-checkpoint should always be accepted block
assert(mapBlockIndex.count(hashSyncCheckpoint));
const CBlockIndex* pindexSync = mapBlockIndex[hashSyncCheckpoint];
if (nHeight > pindexSync->nHeight)
{
// trace back to same height as sync-checkpoint
const CBlockIndex* pindex = pindexPrev;
while (pindex->nHeight > pindexSync->nHeight)
if (!(pindex = pindex->pprev))
return error("CheckSync: pprev null - block index structure failure");
if (pindex->nHeight < pindexSync->nHeight || pindex->GetBlockHash() != hashSyncCheckpoint)
return false; // only descendant of sync-checkpoint can pass check
}
if (nHeight == pindexSync->nHeight && hashBlock != hashSyncCheckpoint)
return false; // same height with sync-checkpoint
if (nHeight < pindexSync->nHeight && !mapBlockIndex.count(hashBlock))
return false; // lower height than sync-checkpoint
return true;
}
QString BitcoinUnits::description(int unit)
{
if(!TestNet() && !RegTest())
{
switch(unit)
{
case DASH: return QString("Dash");
case mDASH: return QString("Milli-Dash (1 / 1,000)");
case uDASH: return QString("Micro-Dash (1 / 1,000,000)");
case duffs: return QString("Ten Nano-Dash (1 / 100,000,000)");
default: return QString("???");
}
}
else
{
switch(unit)
{
case DASH: return QString("TestDashs");
case mDASH: return QString("Milli-TestDash (1 / 1,000)");
case uDASH: return QString("Micro-TestDash (1 / 1,000,000)");
case duffs: return QString("Ten Nano-TestDash (1 / 100,000,000)");
default: return QString("???");
}
}
}
QString BitcoinUnits::name(int unit)
{
if(!TestNet() && !RegTest())
{
switch(unit)
{
case DASH: return QString("DASH");
case mDASH: return QString("mDASH");
case uDASH: return QString::fromUtf8("μDASH");
case duffs: return QString::fromUtf8("duffs");
default: return QString("???");
}
}
else
{
switch(unit)
{
case DASH: return QString("tDASH");
case mDASH: return QString("mtDASH");
case uDASH: return QString::fromUtf8("μtDASH");
case duffs: return QString::fromUtf8("tduffs");
default: return QString("???");
}
}
}
int GetTotalBlocksEstimate()
{
MapCheckpoints& checkpoints = (TestNet() ? mapCheckpointsTestnet : mapCheckpoints);
if (checkpoints.empty())
return 0;
return checkpoints.rbegin()->first;
}
CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex)
{
MapCheckpoints& checkpoints = (TestNet() ? mapCheckpointsTestnet : mapCheckpoints);
BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, checkpoints)
{
const uint256& hash = i.second;
std::map<uint256, CBlockIndex*>::const_iterator t = mapBlockIndex.find(hash);
if (t != mapBlockIndex.end())
return t->second;
}
return NULL;
}
// Verify sync checkpoint master pubkey and reset sync checkpoint if changed
bool CheckCheckpointPubKey()
{
std::string strPubKey = "";
std::string strMasterPubKey = TestNet() ? CSyncCheckpoint::strTestPubKey : CSyncCheckpoint::strMainPubKey;
if (!pblocktree->ReadCheckpointPubKey(strPubKey) || strPubKey != strMasterPubKey)
{
// write checkpoint master key to db
if (!pblocktree->WriteCheckpointPubKey(strMasterPubKey))
return error("CheckCheckpointPubKey() : failed to write new checkpoint master key to db");
if (!ResetSyncCheckpoint())
return error("CheckCheckpointPubKey() : failed to reset sync-checkpoint");
}
return true;
}
bool ClientModel::isTestNet() const
{
return TestNet();
}
WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransaction &transaction, const CCoinControl *coinControl)
{
qint64 total = 0;
QList<SendCoinsRecipient> recipients = transaction.getRecipients();
std::vector<std::pair<CScript, int64_t> > vecSend;
if(recipients.empty())
{
return OK;
}
QSet<QString> setAddress; // Used to detect duplicates
int nAddresses = 0;
// Pre-check input data for validity
foreach(const SendCoinsRecipient &rcp, recipients)
{
if (rcp.paymentRequest.IsInitialized())
{ // PaymentRequest...
int64_t subtotal = 0;
const payments::PaymentDetails& details = rcp.paymentRequest.getDetails();
for (int i = 0; i < details.outputs_size(); i++)
{
const payments::Output& out = details.outputs(i);
if (out.amount() <= 0) continue;
subtotal += out.amount();
const unsigned char* scriptStr = (const unsigned char*)out.script().data();
CScript scriptPubKey(scriptStr, scriptStr+out.script().size());
vecSend.push_back(std::pair<CScript, int64_t>(scriptPubKey, out.amount()));
}
if (subtotal <= 0)
{
return InvalidAmount;
}
total += subtotal;
}
else
{ // User-entered bitcoin address / amount:
if(!validateAddress(rcp.address))
{
return InvalidAddress;
}
if(rcp.amount <= 0)
{
return InvalidAmount;
}
setAddress.insert(rcp.address);
++nAddresses;
// stealth
std::string sAddr = rcp.address.toStdString();
if (rcp.typeInd == AddressTableModel::AT_Stealth)
{
if ( (!TestNet() && (chainActive.Height() < BLOCK_STEALTH_START))
|| (TestNet() && (chainActive.Height() < 200)) )
{
emit message(tr("Send Coins"), tr("Stealth addresses not yet supported"),
CClientUIInterface::MSG_ERROR);
return InvalidAddress;
}
CStealthAddress sxAddr;
if (sxAddr.SetEncoded(sAddr))
{
ec_secret ephem_secret;
ec_secret secretShared;
ec_point pkSendTo;
ec_point ephem_pubkey;
if (GenerateRandomSecret(ephem_secret) != 0)
{
LogPrintf("GenerateRandomSecret failed.\n");
return InvalidAddress;
};
if (StealthSecret(ephem_secret, sxAddr.scan_pubkey, sxAddr.spend_pubkey, secretShared, pkSendTo) != 0)
{
LogPrintf("Could not generate receiving public key.\n");
return InvalidAddress;
};
CPubKey cpkTo(pkSendTo);
if (!cpkTo.IsValid())
{
LogPrintf("Invalid public key generated.\n");
return InvalidAddress;
};
CKeyID ckidTo = cpkTo.GetID();
CBitcoinAddress addrTo(ckidTo);
if (SecretToPublicKey(ephem_secret, ephem_pubkey) != 0)
{
LogPrintf("Could not generate ephem public key.\n");
return InvalidAddress;
};
if (fDebug)
{
LogPrintf("Stealth send to generated pubkey %ui: %s\n", pkSendTo.size(), HexStr(pkSendTo).c_str());
LogPrintf("hash %s\n", addrTo.ToString().c_str());
LogPrintf("ephem_pubkey %ui: %s\n", ephem_pubkey.size(), HexStr(ephem_pubkey).c_str());
};
CScript scriptPubKey;
scriptPubKey.SetDestination(addrTo.Get());
vecSend.push_back(make_pair(scriptPubKey, rcp.amount));
CScript scriptP = CScript() << OP_RETURN << ephem_pubkey;
vecSend.push_back(make_pair(scriptP, 0));
continue;
}; // else drop through to normal
}
CScript scriptPubKey;
scriptPubKey.SetDestination(CBitcoinAddress(sAddr).Get());
vecSend.push_back(std::pair<CScript, int64_t>(scriptPubKey, rcp.amount));
total += rcp.amount;
}
}
if(setAddress.size() != nAddresses)
{
return DuplicateAddress;
}
qint64 nBalance = getBalance(coinControl);
if(total > nBalance)
{
return AmountExceedsBalance;
}
if((total + nTransactionFee) > nBalance)
{
transaction.setTransactionFee(nTransactionFee);
return SendCoinsReturn(AmountWithFeeExceedsBalance);
}
{
LOCK2(cs_main, wallet->cs_wallet);
transaction.newPossibleKeyChange(wallet);
int64_t nFeeRequired = 0;
std::string strFailReason;
CWalletTx *newTx = transaction.getTransaction();
CReserveKey *keyChange = transaction.getPossibleKeyChange();
// int nChangePos = -1;
bool fCreated = wallet->CreateTransaction(vecSend, *newTx, *keyChange, nFeeRequired, /*nChangePos,*/ strFailReason, coinControl);
/*
std::map<int, std::string>::iterator it;
for (it = mapStealthNarr.begin(); it != mapStealthNarr.end(); ++it)
{
int pos = it->first;
if (nChangePos > -1 && it->first >= nChangePos)
pos++;
char key[64];
if (snprintf(key, sizeof(key), "n_%u", pos) < 1)
{
printf("CreateStealthTransaction(): Error creating narration key.");
continue;
};
wtx.mapValue[key] = it->second;
};
*/
transaction.setTransactionFee(nFeeRequired);
if(!fCreated)
{
if((total + nFeeRequired) > nBalance)
{
return SendCoinsReturn(AmountWithFeeExceedsBalance);
}
emit message(tr("Send Coins"), QString::fromStdString(strFailReason),
CClientUIInterface::MSG_ERROR);
return TransactionCreationFailed;
}
}
return SendCoinsReturn(OK);
}