TEST(wallet_tests, navigate_from_nullifier_to_note) {
CWallet wallet;
auto sk = libzcash::SpendingKey::random();
wallet.AddSpendingKey(sk);
auto wtx = GetValidReceive(sk, 10, true);
auto note = GetNote(sk, wtx, 0, 1);
auto nullifier = note.nullifier(sk);
mapNoteData_t noteData;
JSOutPoint jsoutpt {wtx.GetHash(), 0, 1};
CNoteData nd {sk.address(), nullifier};
noteData[jsoutpt] = nd;
wtx.SetNoteData(noteData);
EXPECT_EQ(0, wallet.mapNullifiersToNotes.count(nullifier));
wallet.AddToWallet(wtx, true, NULL);
EXPECT_EQ(1, wallet.mapNullifiersToNotes.count(nullifier));
EXPECT_EQ(wtx.GetHash(), wallet.mapNullifiersToNotes[nullifier].hash);
EXPECT_EQ(0, wallet.mapNullifiersToNotes[nullifier].js);
EXPECT_EQ(1, wallet.mapNullifiersToNotes[nullifier].n);
}
TEST(wallet_tests, GetNoteNullifier) {
CWallet wallet;
auto sk = libzcash::SpendingKey::random();
auto address = sk.address();
auto dec = ZCNoteDecryption(sk.viewing_key());
auto wtx = GetValidReceive(sk, 10, true);
auto note = GetNote(sk, wtx, 0, 1);
auto nullifier = note.nullifier(sk);
auto hSig = wtx.vjoinsplit[0].h_sig(
*params, wtx.joinSplitPubKey);
auto ret = wallet.GetNoteNullifier(
wtx.vjoinsplit[0],
address,
dec,
hSig, 1);
EXPECT_NE(nullifier, ret);
wallet.AddSpendingKey(sk);
ret = wallet.GetNoteNullifier(
wtx.vjoinsplit[0],
address,
dec,
hSig, 1);
EXPECT_EQ(nullifier, ret);
}
static int64_t AddTx(CWallet& wallet, uint32_t lockTime, int64_t mockTime, int64_t blockTime)
{
CMutableTransaction tx;
tx.nLockTime = lockTime;
SetMockTime(mockTime);
CBlockIndex* block = nullptr;
if (blockTime > 0) {
auto locked_chain = wallet.chain().lock();
auto inserted = mapBlockIndex.emplace(GetRandHash(), new CBlockIndex);
assert(inserted.second);
const uint256& hash = inserted.first->first;
block = inserted.first->second;
block->nTime = blockTime;
block->phashBlock = &hash;
}
CWalletTx wtx(&wallet, MakeTransactionRef(tx));
if (block) {
wtx.SetMerkleBranch(block, 0);
}
{
LOCK(cs_main);
wallet.AddToWallet(wtx);
}
LOCK(wallet.cs_wallet);
return wallet.mapWallet.at(wtx.GetHash()).nTimeSmart;
}
// Simple benchmark for wallet coin selection. Note that it maybe be necessary
// to build up more complicated scenarios in order to get meaningful
// measurements of performance. From laanwj, "Wallet coin selection is probably
// the hardest, as you need a wider selection of scenarios, just testing the
// same one over and over isn't too useful. Generating random isn't useful
// either for measurements."
// (https://github.com/bitcoin/bitcoin/issues/7883#issuecomment-224807484)
static void CoinSelection(benchmark::State& state)
{
const CWallet wallet;
vector<COutput> vCoins;
LOCK(wallet.cs_wallet);
while (state.KeepRunning()) {
// Empty wallet.
BOOST_FOREACH (COutput output, vCoins)
delete output.tx;
vCoins.clear();
// Add coins.
for (int i = 0; i < 1000; i++)
addCoin(1000 * COIN, wallet, vCoins);
addCoin(3 * COIN, wallet, vCoins);
set<pair<const CWalletTx*, unsigned int> > setCoinsRet;
CAmount nValueRet;
bool success = wallet.SelectCoinsMinConf(1003 * COIN, 1, 6, 0, vCoins, setCoinsRet, nValueRet);
assert(success);
assert(nValueRet == 1003 * COIN);
assert(setCoinsRet.size() == 2);
}
}
// Simple benchmark for wallet coin selection. Note that it maybe be necessary
// to build up more complicated scenarios in order to get meaningful
// measurements of performance. From laanwj, "Wallet coin selection is probably
// the hardest, as you need a wider selection of scenarios, just testing the
// same one over and over isn't too useful. Generating random isn't useful
// either for measurements."
// (https://github.com/bitcoin/bitcoin/issues/7883#issuecomment-224807484)
static void CoinSelection(benchmark::State& state)
{
auto chain = interfaces::MakeChain();
const CWallet wallet(*chain, WalletLocation(), WalletDatabase::CreateDummy());
std::vector<std::unique_ptr<CWalletTx>> wtxs;
LOCK(wallet.cs_wallet);
// Add coins.
for (int i = 0; i < 1000; ++i) {
addCoin(1000 * COIN, wallet, wtxs);
}
addCoin(3 * COIN, wallet, wtxs);
// Create groups
std::vector<OutputGroup> groups;
for (const auto& wtx : wtxs) {
COutput output(wtx.get(), 0 /* iIn */, 6 * 24 /* nDepthIn */, true /* spendable */, true /* solvable */, true /* safe */);
groups.emplace_back(output.GetInputCoin(), 6, false, 0, 0);
}
const CoinEligibilityFilter filter_standard(1, 6, 0);
const CoinSelectionParams coin_selection_params(true, 34, 148, CFeeRate(0), 0);
while (state.KeepRunning()) {
std::set<CInputCoin> setCoinsRet;
CAmount nValueRet;
bool bnb_used;
bool success = wallet.SelectCoinsMinConf(1003 * COIN, filter_standard, groups, setCoinsRet, nValueRet, coin_selection_params, bnb_used);
assert(success);
assert(nValueRet == 1003 * COIN);
assert(setCoinsRet.size() == 2);
}
}
// Verify importwallet RPC starts rescan at earliest block with timestamp
// greater or equal than key birthday. Previously there was a bug where
// importwallet RPC would start the scan at the latest block with timestamp less
// than or equal to key birthday.
BOOST_FIXTURE_TEST_CASE(importwallet_rescan, TestChain100Setup)
{
g_address_type = OUTPUT_TYPE_DEFAULT;
g_change_type = OUTPUT_TYPE_DEFAULT;
// Create two blocks with same timestamp to verify that importwallet rescan
// will pick up both blocks, not just the first.
const int64_t BLOCK_TIME = chainActive.Tip()->GetBlockTimeMax() + 5;
SetMockTime(BLOCK_TIME);
coinbaseTxns.emplace_back(*CreateAndProcessBlock({}, GetScriptForRawPubKey(coinbaseKey.GetPubKey())).vtx[0]);
coinbaseTxns.emplace_back(*CreateAndProcessBlock({}, GetScriptForRawPubKey(coinbaseKey.GetPubKey())).vtx[0]);
// Set key birthday to block time increased by the timestamp window, so
// rescan will start at the block time.
const int64_t KEY_TIME = BLOCK_TIME + TIMESTAMP_WINDOW;
SetMockTime(KEY_TIME);
coinbaseTxns.emplace_back(*CreateAndProcessBlock({}, GetScriptForRawPubKey(coinbaseKey.GetPubKey())).vtx[0]);
LOCK(cs_main);
// Import key into wallet and call dumpwallet to create backup file.
{
CWallet wallet;
LOCK(wallet.cs_wallet);
wallet.mapKeyMetadata[coinbaseKey.GetPubKey().GetID()].nCreateTime = KEY_TIME;
wallet.AddKeyPubKey(coinbaseKey, coinbaseKey.GetPubKey());
JSONRPCRequest request;
request.params.setArray();
request.params.push_back((pathTemp / "wallet.backup").string());
vpwallets.insert(vpwallets.begin(), &wallet);
::dumpwallet(request);
}
// Call importwallet RPC and verify all blocks with timestamps >= BLOCK_TIME
// were scanned, and no prior blocks were scanned.
{
CWallet wallet;
JSONRPCRequest request;
request.params.setArray();
request.params.push_back((pathTemp / "wallet.backup").string());
vpwallets[0] = &wallet;
::importwallet(request);
LOCK(wallet.cs_wallet);
BOOST_CHECK_EQUAL(wallet.mapWallet.size(), 3);
BOOST_CHECK_EQUAL(coinbaseTxns.size(), 103);
for (size_t i = 0; i < coinbaseTxns.size(); ++i) {
bool found = wallet.GetWalletTx(coinbaseTxns[i].GetHash());
bool expected = i >= 100;
BOOST_CHECK_EQUAL(found, expected);
}
}
SetMockTime(0);
vpwallets.erase(vpwallets.begin());
}
qint64 WalletModel::getTotBalance() const
{
qint64 nTotBalance = 0;
BOOST_FOREACH(const wallet_map::value_type& item, pWalletManager->GetWalletMap())
{
CWallet* pwallet = pWalletManager->GetWallet(item.first.c_str()).get();
nTotBalance+=pwallet->GetBalance();
}
return nTotBalance;
}
TEST(wallet_tests, spent_note_is_from_me) {
CWallet wallet;
auto sk = libzcash::SpendingKey::random();
wallet.AddSpendingKey(sk);
auto wtx = GetValidReceive(sk, 10, true);
auto note = GetNote(sk, wtx, 0, 1);
auto nullifier = note.nullifier(sk);
auto wtx2 = GetValidSpend(sk, note, 5);
EXPECT_FALSE(wallet.IsFromMe(wtx));
EXPECT_FALSE(wallet.IsFromMe(wtx2));
mapNoteData_t noteData;
JSOutPoint jsoutpt {wtx.GetHash(), 0, 1};
CNoteData nd {sk.address(), nullifier};
noteData[jsoutpt] = nd;
wtx.SetNoteData(noteData);
EXPECT_FALSE(wallet.IsFromMe(wtx));
EXPECT_FALSE(wallet.IsFromMe(wtx2));
wallet.AddToWallet(wtx, true, NULL);
EXPECT_FALSE(wallet.IsFromMe(wtx));
EXPECT_TRUE(wallet.IsFromMe(wtx2));
}
TEST(wallet_tests, get_conflicted_notes) {
CWallet wallet;
auto sk = libzcash::SpendingKey::random();
wallet.AddSpendingKey(sk);
auto wtx = GetValidReceive(sk, 10, true);
auto note = GetNote(sk, wtx, 0, 1);
auto nullifier = note.nullifier(sk);
auto wtx2 = GetValidSpend(sk, note, 5);
auto wtx3 = GetValidSpend(sk, note, 10);
auto hash2 = wtx2.GetHash();
auto hash3 = wtx3.GetHash();
// No conflicts for no spends
EXPECT_EQ(0, wallet.GetConflicts(hash2).size());
wallet.AddToWallet(wtx, true, NULL);
EXPECT_EQ(0, wallet.GetConflicts(hash2).size());
// No conflicts for one spend
wallet.AddToWallet(wtx2, true, NULL);
EXPECT_EQ(0, wallet.GetConflicts(hash2).size());
// Conflicts for two spends
wallet.AddToWallet(wtx3, true, NULL);
auto c3 = wallet.GetConflicts(hash2);
EXPECT_EQ(2, c3.size());
EXPECT_EQ(std::set<uint256>({hash2, hash3}), c3);
}
CPubKey CAccountHD::GenerateNewKey(CWallet& wallet, int keyChain)
{
CExtPubKey childKey;
do {
GetPubKey(childKey, keyChain);
} while (wallet.HaveKey(childKey.pubkey.GetID())); ///
LogPrintf("CAccount::GenerateNewKey(): NewHDKey [%s]\n", CBitcoinAddress(childKey.pubkey.GetID()).ToString());
if (!wallet.AddKeyPubKey(childKey.nChild, childKey.pubkey, *this, keyChain))
throw std::runtime_error("CAccount::GenerateNewKey(): AddKeyPubKey failed");
return childKey.pubkey;
}
void MultisigDialog::on_saveRedeemScriptButton_clicked()
{
if(!model)
return;
CWallet *wallet = model->getWallet();
std::string redeemScript = ui->redeemScript->text().toStdString();
std::vector<unsigned char> scriptData(ParseHex(redeemScript));
CScript script(scriptData.begin(), scriptData.end());
CScriptID scriptID = script.GetID();
LOCK(wallet->cs_wallet);
if(!wallet->HaveCScript(scriptID))
wallet->AddCScript(script);
}
double benchmark_try_decrypt_notes(size_t nAddrs)
{
CWallet wallet;
for (int i = 0; i < nAddrs; i++) {
auto sk = libzcash::SpendingKey::random();
wallet.AddSpendingKey(sk);
}
auto sk = libzcash::SpendingKey::random();
auto tx = GetValidReceive(*pzcashParams, sk, 10, true);
struct timeval tv_start;
timer_start(tv_start);
auto nd = wallet.FindMyNotes(tx);
return timer_stop(tv_start);
}
TEST(wallet_tests, find_note_in_tx) {
CWallet wallet;
auto sk = libzcash::SpendingKey::random();
wallet.AddSpendingKey(sk);
auto wtx = GetValidReceive(sk, 10, true);
auto note = GetNote(sk, wtx, 0, 1);
auto nullifier = note.nullifier(sk);
auto noteMap = wallet.FindMyNotes(wtx);
EXPECT_EQ(2, noteMap.size());
JSOutPoint jsoutpt {wtx.GetHash(), 0, 1};
CNoteData nd {sk.address(), nullifier};
EXPECT_EQ(1, noteMap.count(jsoutpt));
EXPECT_EQ(nd, noteMap[jsoutpt]);
}
// Check that GetImmatureCredit() returns a newly calculated value instead of
// the cached value after a MarkDirty() call.
//
// This is a regression test written to verify a bugfix for the immature credit
// function. Similar tests probably should be written for the other credit and
// debit functions.
BOOST_FIXTURE_TEST_CASE(coin_mark_dirty_immature_credit, TestChain100Setup)
{
CWallet wallet;
CWalletTx wtx(&wallet, MakeTransactionRef(coinbaseTxns.back()));
LOCK2(cs_main, wallet.cs_wallet);
wtx.hashBlock = chainActive.Tip()->GetBlockHash();
wtx.nIndex = 0;
// Call GetImmatureCredit() once before adding the key to the wallet to
// cache the current immature credit amount, which is 0.
BOOST_CHECK_EQUAL(wtx.GetImmatureCredit(), 0);
// Invalidate the cached value, add the key, and make sure a new immature
// credit amount is calculated.
wtx.MarkDirty();
wallet.AddKeyPubKey(coinbaseKey, coinbaseKey.GetPubKey());
BOOST_CHECK_EQUAL(wtx.GetImmatureCredit(), 50*COIN);
}
CPubKey CAccountHD::GenerateNewKey(CWallet& wallet, CKeyMetadata& metadata, int keyChain)
{
CExtPubKey childKey;
do
{
GetPubKey(childKey, keyChain);
}
while( wallet.HaveKey(childKey.pubkey.GetID()) );//fixme: (Post-2.1) (BIP44) No longer need wallet here.
//LogPrintf("CAccount::GenerateNewKey(): NewHDKey [%s]\n", CGuldenAddress(childKey.pubkey.GetID()).ToString());
metadata.hdKeypath = std::string("m/44'/87'/") + std::to_string(m_nIndex) + "/" + std::to_string(keyChain) + "/" + std::to_string(childKey.nChild) + "'";
metadata.hdAccountUUID = getUUIDAsString(getUUID());
if (!wallet.AddHDKeyPubKey(childKey.nChild, childKey.pubkey, *this, keyChain))
throw std::runtime_error("CAccount::GenerateNewKey(): AddKeyPubKey failed");
return childKey.pubkey;
}
CPubKey CAccount::GenerateNewKey(CWallet& wallet, int keyChain)
{
CKey secret;
secret.MakeNewKey(true);
CPubKey pubkey = secret.GetPubKey();
assert(secret.VerifyPubKey(pubkey));
if (!wallet.AddKeyPubKey(secret, pubkey, *this, keyChain))
throw std::runtime_error("CAccount::GenerateNewKey(): AddKeyPubKey failed");
return pubkey;
}
void MultisigDialog::on_saveMultisigAddressButton_clicked()
{
if(!model)
return;
CWallet *wallet = model->getWallet();
std::string redeemScript = ui->redeemScript->text().toStdString();
std::string address = ui->multisigAddress->text().toStdString();
std::string label("multisig");
if(!model->validateAddress(QString(address.c_str())))
return;
std::vector<unsigned char> scriptData(ParseHex(redeemScript));
CScript script(scriptData.begin(), scriptData.end());
CScriptID scriptID = script.GetID();
LOCK(wallet->cs_wallet);
if(!wallet->HaveCScript(scriptID))
wallet->AddCScript(script);
if(!wallet->mapAddressBook.count(CBitcoinAddress(address).Get()))
wallet->SetAddressBookName(CBitcoinAddress(address).Get(), label);
}
// darksilk: attempt to generate suitable proof-of-stake
bool CBlock::SignBlock(CWallet& wallet, CAmount nFees)
{
// if we are trying to sign
// something except proof-of-stake block template
if (!vtx[0].vout[0].IsEmpty())
return false;
// if we are trying to sign
// a complete proof-of-stake block
if (IsProofOfStake())
return true;
static int64_t nLastCoinStakeSearchTime = GetAdjustedTime(); // startup timestamp
CKey key;
CTransaction txCoinStake;
txCoinStake.nTime &= ~STAKE_TIMESTAMP_MASK;
int64_t nSearchTime = txCoinStake.nTime; // search to current time
if (nSearchTime > nLastCoinStakeSearchTime)
{
int64_t nSearchInterval = 1;
if (wallet.CreateCoinStake(wallet, nBits, nSearchInterval, nFees, txCoinStake, key))
{
if (txCoinStake.nTime >= pindexBest->GetPastTimeLimit()+1)
{
// make sure coinstake would meet timestamp protocol
// as it would be the same as the block timestamp
vtx[0].nTime = nTime = txCoinStake.nTime;
// we have to make sure that we have no future timestamps in
// our transactions set
for (vector<CTransaction>::iterator it = vtx.begin(); it != vtx.end();)
if (it->nTime > nTime) { it = vtx.erase(it); } else { ++it; }
vtx.insert(vtx.begin() + 1, txCoinStake);
hashMerkleRoot = BuildMerkleTree();
// append a signature to our block
return key.Sign(GetHash(), vchBlockSig);
}
}
nLastCoinStakeSearchInterval = nSearchTime - nLastCoinStakeSearchTime;
nLastCoinStakeSearchTime = nSearchTime;
}
return false;
}
double benchmark_increment_note_witnesses(size_t nTxs)
{
CWallet wallet;
ZCIncrementalMerkleTree tree;
auto sk = libzcash::SpendingKey::random();
wallet.AddSpendingKey(sk);
// First block
CBlock block1;
for (int i = 0; i < nTxs; i++) {
auto wtx = GetValidReceive(*pzcashParams, sk, 10, true);
auto note = GetNote(*pzcashParams, sk, wtx, 0, 1);
auto nullifier = note.nullifier(sk);
mapNoteData_t noteData;
JSOutPoint jsoutpt {wtx.GetHash(), 0, 1};
CNoteData nd {sk.address(), nullifier};
noteData[jsoutpt] = nd;
wtx.SetNoteData(noteData);
wallet.AddToWallet(wtx, true, NULL);
block1.vtx.push_back(wtx);
}
CBlockIndex index1(block1);
index1.nHeight = 1;
// Increment to get transactions witnessed
wallet.ChainTip(&index1, &block1, tree, true);
// Second block
CBlock block2;
block2.hashPrevBlock = block1.GetHash();
{
auto wtx = GetValidReceive(*pzcashParams, sk, 10, true);
auto note = GetNote(*pzcashParams, sk, wtx, 0, 1);
auto nullifier = note.nullifier(sk);
mapNoteData_t noteData;
JSOutPoint jsoutpt {wtx.GetHash(), 0, 1};
CNoteData nd {sk.address(), nullifier};
noteData[jsoutpt] = nd;
wtx.SetNoteData(noteData);
wallet.AddToWallet(wtx, true, NULL);
block2.vtx.push_back(wtx);
}
CBlockIndex index2(block2);
index2.nHeight = 2;
struct timeval tv_start;
timer_start(tv_start);
wallet.ChainTip(&index2, &block2, tree, true);
return timer_stop(tv_start);
}
CPubKey CAccount::GenerateNewKey(CWallet& wallet, CKeyMetadata& metadata, int keyChain)
{
if (IsFixedKeyPool())
throw std::runtime_error(strprintf("GenerateNewKey called on a \"%sy\" witness account - this is invalid", GetAccountTypeString(m_Type).c_str()));
CKey secret;
secret.MakeNewKey(true);
CPubKey pubkey = secret.GetPubKey();
assert(secret.VerifyPubKey(pubkey));
if (!wallet.AddKeyPubKey(secret, pubkey, *this, keyChain))
throw std::runtime_error("CAccount::GenerateNewKey(): AddKeyPubKey failed");
return pubkey;
}
TEST(wallet_tests, nullifier_is_spent) {
CWallet wallet;
auto sk = libzcash::SpendingKey::random();
wallet.AddSpendingKey(sk);
auto wtx = GetValidReceive(sk, 10, true);
auto note = GetNote(sk, wtx, 0, 1);
auto nullifier = note.nullifier(sk);
EXPECT_FALSE(wallet.IsSpent(nullifier));
wallet.AddToWallet(wtx, true, NULL);
EXPECT_FALSE(wallet.IsSpent(nullifier));
auto wtx2 = GetValidSpend(sk, note, 5);
wallet.AddToWallet(wtx2, true, NULL);
EXPECT_FALSE(wallet.IsSpent(nullifier));
// Fake-mine the transaction
EXPECT_EQ(-1, chainActive.Height());
CBlock block;
block.vtx.push_back(wtx2);
block.hashMerkleRoot = block.BuildMerkleTree();
auto blockHash = block.GetHash();
CBlockIndex fakeIndex {block};
mapBlockIndex.insert(std::make_pair(blockHash, &fakeIndex));
chainActive.SetTip(&fakeIndex);
EXPECT_TRUE(chainActive.Contains(&fakeIndex));
EXPECT_EQ(0, chainActive.Height());
wtx2.SetMerkleBranch(block);
wallet.AddToWallet(wtx2, true, NULL);
EXPECT_TRUE(wallet.IsSpent(nullifier));
// Tear down
chainActive.SetTip(NULL);
mapBlockIndex.erase(blockHash);
}
WalletFixture()
{
fTestNet = true;
nTransactionFee = 0;
bool fFirst = true;
wallet = new CWallet("test_wallet1.dat");
wallet->LoadWallet(fFirst);
wallet2 = new CWallet("test_wallet2.dat");
wallet2->LoadWallet(fFirst);
wallet3 = new CWallet("test_wallet3.dat");
wallet3->LoadWallet(fFirst);
strAddress1 = PubKeyToAddress(wallet->GetKeyFromKeyPool());
//cout << "a1:" << strAddress1 << "\n";
strAddressOut = PubKeyToAddress(wallet->GetKeyFromKeyPool());
strAddress2 = PubKeyToAddress(wallet2->GetKeyFromKeyPool());
strAddress3 = PubKeyToAddress(wallet3->GetKeyFromKeyPool());
//cout << "a2:" << strAddress2 << "\n";
strMultisignAddress = string("1,") + strAddress1 + "," + strAddress2;
strMultisignAddress2 = string("2,") + strAddress1 + "," + strAddress2;
strMultisignAddress2of3 = string("2,") + strAddress1 + "," + strAddress2 + "," + strAddress3;
}
static void add_coin(const CAmount& nValue, int nAge = 6*24, bool fIsFromMe = false, int nInput=0)
{
balance += nValue;
static int nextLockTime = 0;
CMutableTransaction tx;
tx.nLockTime = nextLockTime++; // so all transactions get different hashes
tx.vout.resize(nInput + 1);
tx.vout[nInput].nValue = nValue;
if (fIsFromMe) {
// IsFromMe() returns (GetDebit() > 0), and GetDebit() is 0 if vin.empty(),
// so stop vin being empty, and cache a non-zero Debit to fake out IsFromMe()
tx.vin.resize(1);
}
std::unique_ptr<CWalletTx> wtx(new CWalletTx(&testWallet, MakeTransactionRef(std::move(tx))));
if (fIsFromMe)
{
wtx->fDebitCached = true;
wtx->nDebitCached = 1;
}
COutput output(wtx.get(), nInput, nAge, true /* spendable */, true /* solvable */, true /* safe */);
vCoins.push_back(output);
testWallet.AddToWallet(*wtx.get());
wtxn.emplace_back(std::move(wtx));
}
bool CreateCoinStake( CBlock &blocknew, CKey &key,
vector<const CWalletTx*> &StakeInputs, uint64_t &CoinAge,
CWallet &wallet, CBlockIndex* pindexPrev )
{
int64_t CoinWeight;
CBigNum StakeKernelHash;
CTxDB txdb("r");
int64_t StakeWeightSum = 0;
double StakeValueSum = 0;
int64_t StakeWeightMin=MAX_MONEY;
int64_t StakeWeightMax=0;
uint64_t StakeCoinAgeSum=0;
double StakeDiffSum = 0;
double StakeDiffMax = 0;
CTransaction &txnew = blocknew.vtx[1]; // second tx is coinstake
//initialize the transaction
txnew.nTime = blocknew.nTime & (~STAKE_TIMESTAMP_MASK);
txnew.vin.clear();
txnew.vout.clear();
// Choose coins to use
set <pair <const CWalletTx*,unsigned int> > CoinsToStake;
int64_t BalanceToStake = wallet.GetBalance();
int64_t nValueIn = 0;
//Request all the coins here, check reserve later
if ( BalanceToStake<=0
|| !wallet.SelectCoinsForStaking(BalanceToStake*2, txnew.nTime, CoinsToStake, nValueIn) )
{
LOCK(MinerStatus.lock);
MinerStatus.ReasonNotStaking+=_("No coins; ");
if (fDebug) LogPrintf("CreateCoinStake: %s",MinerStatus.ReasonNotStaking);
return false;
}
BalanceToStake -= nReserveBalance;
if(fDebug2) LogPrintf("\nCreateCoinStake: Staking nTime/16= %d Bits= %u",
txnew.nTime/16,blocknew.nBits);
for(const auto& pcoin : CoinsToStake)
{
const CTransaction &CoinTx =*pcoin.first; //transaction that produced this coin
unsigned int CoinTxN =pcoin.second; //index of this coin inside it
CTxIndex txindex;
{
LOCK2(cs_main, wallet.cs_wallet);
if (!txdb.ReadTxIndex(pcoin.first->GetHash(), txindex))
continue; //error?
}
CBlock CoinBlock; //Block which contains CoinTx
{
LOCK2(cs_main, wallet.cs_wallet);
if (!CoinBlock.ReadFromDisk(txindex.pos.nFile, txindex.pos.nBlockPos, false))
continue;
}
// only count coins meeting min age requirement
if (CoinBlock.GetBlockTime() + nStakeMinAge > txnew.nTime)
continue;
if (CoinTx.vout[CoinTxN].nValue > BalanceToStake)
continue;
{
int64_t nStakeValue= CoinTx.vout[CoinTxN].nValue;
StakeValueSum += nStakeValue /(double)COIN;
//crazy formula...
// todo: clean this
// todo reuse calculated value for interst
CBigNum bn = CBigNum(nStakeValue) * (blocknew.nTime-CoinTx.nTime) / CENT;
bn = bn * CENT / COIN / (24 * 60 * 60);
StakeCoinAgeSum += bn.getuint64();
}
if(blocknew.nVersion==7)
{
NetworkTimer();
CoinWeight = CalculateStakeWeightV3(CoinTx,CoinTxN,GlobalCPUMiningCPID);
StakeKernelHash= CalculateStakeHashV3(CoinBlock,CoinTx,CoinTxN,txnew.nTime,GlobalCPUMiningCPID,mdPORNonce);
}
else
{
uint64_t StakeModifier = 0;
if(!FindStakeModifierRev(StakeModifier,pindexPrev))
continue;
CoinWeight = CalculateStakeWeightV8(CoinTx,CoinTxN,GlobalCPUMiningCPID);
StakeKernelHash= CalculateStakeHashV8(CoinBlock,CoinTx,CoinTxN,txnew.nTime,StakeModifier,GlobalCPUMiningCPID);
}
CBigNum StakeTarget;
StakeTarget.SetCompact(blocknew.nBits);
StakeTarget*=CoinWeight;
StakeWeightSum += CoinWeight;
StakeWeightMin=std::min(StakeWeightMin,CoinWeight);
StakeWeightMax=std::max(StakeWeightMax,CoinWeight);
double StakeKernelDiff = GetBlockDifficulty(StakeKernelHash.GetCompact())*CoinWeight;
StakeDiffSum += StakeKernelDiff;
StakeDiffMax = std::max(StakeDiffMax,StakeKernelDiff);
if (fDebug2) {
int64_t RSA_WEIGHT = GetRSAWeightByBlock(GlobalCPUMiningCPID);
LogPrintf(
"CreateCoinStake: V%d Time %.f, Por_Nonce %.f, Bits %jd, Weight %jd\n"
" RSA_WEIGHT %.f\n"
" Stk %72s\n"
" Trg %72s\n"
" Diff %0.7f of %0.7f\n",
blocknew.nVersion,
(double)txnew.nTime, mdPORNonce,
(intmax_t)blocknew.nBits,(intmax_t)CoinWeight,
(double)RSA_WEIGHT,
StakeKernelHash.GetHex().c_str(), StakeTarget.GetHex().c_str(),
StakeKernelDiff, GetBlockDifficulty(blocknew.nBits)
);
}
if( StakeKernelHash <= StakeTarget )
{
// Found a kernel
LogPrintf("\nCreateCoinStake: Found Kernel;\n");
blocknew.nNonce= mdPORNonce;
vector<valtype> vSolutions;
txnouttype whichType;
CScript scriptPubKeyOut;
CScript scriptPubKeyKernel;
scriptPubKeyKernel = CoinTx.vout[CoinTxN].scriptPubKey;
if (!Solver(scriptPubKeyKernel, whichType, vSolutions))
{
LogPrintf("CreateCoinStake: failed to parse kernel\n");
break;
}
if (whichType == TX_PUBKEYHASH) // pay to address type
{
// convert to pay to public key type
if (!wallet.GetKey(uint160(vSolutions[0]), key))
{
LogPrintf("CreateCoinStake: failed to get key for kernel type=%d\n", whichType);
break; // unable to find corresponding public key
}
scriptPubKeyOut << key.GetPubKey() << OP_CHECKSIG;
}
else if (whichType == TX_PUBKEY) // pay to public key type
{
valtype& vchPubKey = vSolutions[0];
if (!wallet.GetKey(Hash160(vchPubKey), key)
|| key.GetPubKey() != vchPubKey)
{
LogPrintf("CreateCoinStake: failed to get key for kernel type=%d\n", whichType);
break; // unable to find corresponding public key
}
scriptPubKeyOut = scriptPubKeyKernel;
}
else
{
LogPrintf("CreateCoinStake: no support for kernel type=%d\n", whichType);
break; // only support pay to public key and pay to address
}
txnew.vin.push_back(CTxIn(CoinTx.GetHash(), CoinTxN));
StakeInputs.push_back(pcoin.first);
if (!txnew.GetCoinAge(txdb, CoinAge))
return error("CreateCoinStake: failed to calculate coin age");
int64_t nCredit = CoinTx.vout[CoinTxN].nValue;
txnew.vout.push_back(CTxOut(0, CScript())); // First Must be empty
txnew.vout.push_back(CTxOut(nCredit, scriptPubKeyOut));
//txnew.vout.push_back(CTxOut(0, scriptPubKeyOut));
LogPrintf("CreateCoinStake: added kernel type=%d credit=%f\n", whichType,CoinToDouble(nCredit));
LOCK(MinerStatus.lock);
MinerStatus.KernelsFound++;
MinerStatus.KernelDiffMax = 0;
MinerStatus.KernelDiffSum = StakeDiffSum;
return true;
}
}
LOCK(MinerStatus.lock);
MinerStatus.WeightSum = StakeWeightSum;
MinerStatus.ValueSum = StakeValueSum;
MinerStatus.WeightMin=StakeWeightMin;
MinerStatus.WeightMax=StakeWeightMax;
MinerStatus.CoinAgeSum=StakeCoinAgeSum;
MinerStatus.KernelDiffMax = std::max(MinerStatus.KernelDiffMax,StakeDiffMax);
MinerStatus.KernelDiffSum = StakeDiffSum;
MinerStatus.nLastCoinStakeSearchInterval= txnew.nTime;
return false;
}
BOOST_FIXTURE_TEST_CASE(rescan, TestChain100Setup)
{
LOCK(cs_main);
// Cap last block file size, and mine new block in a new block file.
CBlockIndex* oldTip = chainActive.Tip();
GetBlockFileInfo(oldTip->GetBlockPos().nFile)->nSize = MAX_BLOCKFILE_SIZE;
CreateAndProcessBlock({}, GetScriptForRawPubKey(coinbaseKey.GetPubKey()));
CBlockIndex* newTip = chainActive.Tip();
// Verify ScanForWalletTransactions picks up transactions in both the old
// and new block files.
{
CWallet wallet;
LOCK(wallet.cs_wallet);
wallet.AddKeyPubKey(coinbaseKey, coinbaseKey.GetPubKey());
BOOST_CHECK_EQUAL(oldTip, wallet.ScanForWalletTransactions(oldTip));
BOOST_CHECK_EQUAL(wallet.GetImmatureBalance(), 100 * COIN);
}
// Prune the older block file.
PruneOneBlockFile(oldTip->GetBlockPos().nFile);
UnlinkPrunedFiles({oldTip->GetBlockPos().nFile});
// Verify ScanForWalletTransactions only picks transactions in the new block
// file.
{
CWallet wallet;
LOCK(wallet.cs_wallet);
wallet.AddKeyPubKey(coinbaseKey, coinbaseKey.GetPubKey());
BOOST_CHECK_EQUAL(newTip, wallet.ScanForWalletTransactions(oldTip));
BOOST_CHECK_EQUAL(wallet.GetImmatureBalance(), 50 * COIN);
}
// Verify importmulti RPC returns failure for a key whose creation time is
// before the missing block, and success for a key whose creation time is
// after.
{
CWallet wallet;
CWallet *backup = ::pwalletMain;
::pwalletMain = &wallet;
UniValue keys;
keys.setArray();
UniValue key;
key.setObject();
key.pushKV("scriptPubKey", HexStr(GetScriptForRawPubKey(coinbaseKey.GetPubKey())));
key.pushKV("timestamp", 0);
key.pushKV("internal", UniValue(true));
keys.push_back(key);
key.clear();
key.setObject();
CKey futureKey;
futureKey.MakeNewKey(true);
key.pushKV("scriptPubKey", HexStr(GetScriptForRawPubKey(futureKey.GetPubKey())));
key.pushKV("timestamp", newTip->GetBlockTimeMax() + TIMESTAMP_WINDOW);
key.pushKV("internal", UniValue(true));
keys.push_back(key);
JSONRPCRequest request;
request.params.setArray();
request.params.push_back(keys);
UniValue response = importmulti(request);
BOOST_CHECK_EQUAL(response.write(), strprintf("[{\"success\":false,\"error\":{\"code\":-1,\"message\":\"Failed to rescan before time %d, transactions may be missing.\"}},{\"success\":true}]", newTip->GetBlockTimeMax()));
::pwalletMain = backup;
}
// Verify ScanForWalletTransactions does not return null when the scan is
// elided due to the nTimeFirstKey optimization.
{
CWallet wallet;
{
LOCK(wallet.cs_wallet);
wallet.UpdateTimeFirstKey(newTip->GetBlockTime() + 7200 + 1);
}
BOOST_CHECK_EQUAL(newTip, wallet.ScanForWalletTransactions(newTip));
}
}
BOOST_FIXTURE_TEST_CASE(rescan, TestChain100Setup)
{
LOCK(cs_main);
// Cap last block file size, and mine new block in a new block file.
CBlockIndex* const nullBlock = nullptr;
CBlockIndex* oldTip = chainActive.Tip();
GetBlockFileInfo(oldTip->GetBlockPos().nFile)->nSize = MAX_BLOCKFILE_SIZE;
CreateAndProcessBlock({}, GetScriptForRawPubKey(coinbaseKey.GetPubKey()));
CBlockIndex* newTip = chainActive.Tip();
// Verify ScanForWalletTransactions picks up transactions in both the old
// and new block files.
{
CWallet wallet;
LOCK(wallet.cs_wallet);
wallet.AddKeyPubKey(coinbaseKey, coinbaseKey.GetPubKey());
BOOST_CHECK_EQUAL(nullBlock, wallet.ScanForWalletTransactions(oldTip));
BOOST_CHECK_EQUAL(wallet.GetImmatureBalance(), 100 * COIN);
}
// Prune the older block file.
PruneOneBlockFile(oldTip->GetBlockPos().nFile);
UnlinkPrunedFiles({oldTip->GetBlockPos().nFile});
// Verify ScanForWalletTransactions only picks transactions in the new block
// file.
{
CWallet wallet;
LOCK(wallet.cs_wallet);
wallet.AddKeyPubKey(coinbaseKey, coinbaseKey.GetPubKey());
BOOST_CHECK_EQUAL(oldTip, wallet.ScanForWalletTransactions(oldTip));
BOOST_CHECK_EQUAL(wallet.GetImmatureBalance(), 50 * COIN);
}
// Verify importmulti RPC returns failure for a key whose creation time is
// before the missing block, and success for a key whose creation time is
// after.
{
CWallet wallet;
vpwallets.insert(vpwallets.begin(), &wallet);
UniValue keys;
keys.setArray();
UniValue key;
key.setObject();
key.pushKV("scriptPubKey", HexStr(GetScriptForRawPubKey(coinbaseKey.GetPubKey())));
key.pushKV("timestamp", 0);
key.pushKV("internal", UniValue(true));
keys.push_back(key);
key.clear();
key.setObject();
CKey futureKey;
futureKey.MakeNewKey(true);
key.pushKV("scriptPubKey", HexStr(GetScriptForRawPubKey(futureKey.GetPubKey())));
key.pushKV("timestamp", newTip->GetBlockTimeMax() + TIMESTAMP_WINDOW + 1);
key.pushKV("internal", UniValue(true));
keys.push_back(key);
JSONRPCRequest request;
request.params.setArray();
request.params.push_back(keys);
UniValue response = importmulti(request);
BOOST_CHECK_EQUAL(response.write(),
strprintf("[{\"success\":false,\"error\":{\"code\":-1,\"message\":\"Rescan failed for key with creation "
"timestamp %d. There was an error reading a block from time %d, which is after or within %d "
"seconds of key creation, and could contain transactions pertaining to the key. As a result, "
"transactions and coins using this key may not appear in the wallet. This error could be caused "
"by pruning or data corruption (see bitcoind log for details) and could be dealt with by "
"downloading and rescanning the relevant blocks (see -reindex and -rescan "
"options).\"}},{\"success\":true}]",
0, oldTip->GetBlockTimeMax(), TIMESTAMP_WINDOW));
vpwallets.erase(vpwallets.begin());
}
}
TEST(wallet_tests, find_unspent_notes) {
SelectParams(CBaseChainParams::TESTNET);
CWallet wallet;
auto sk = libzcash::SpendingKey::random();
wallet.AddSpendingKey(sk);
auto wtx = GetValidReceive(sk, 10, true);
auto note = GetNote(sk, wtx, 0, 1);
auto nullifier = note.nullifier(sk);
mapNoteData_t noteData;
JSOutPoint jsoutpt {wtx.GetHash(), 0, 1};
CNoteData nd {sk.address(), nullifier};
noteData[jsoutpt] = nd;
wtx.SetNoteData(noteData);
wallet.AddToWallet(wtx, true, NULL);
EXPECT_FALSE(wallet.IsSpent(nullifier));
// We currently have an unspent and unconfirmed note in the wallet (depth of -1)
std::vector<CNotePlaintextEntry> entries;
wallet.GetFilteredNotes(entries, "", 0);
EXPECT_EQ(0, entries.size());
entries.clear();
wallet.GetFilteredNotes(entries, "", -1);
EXPECT_EQ(1, entries.size());
entries.clear();
// Fake-mine the transaction
EXPECT_EQ(-1, chainActive.Height());
CBlock block;
block.vtx.push_back(wtx);
block.hashMerkleRoot = block.BuildMerkleTree();
auto blockHash = block.GetHash();
CBlockIndex fakeIndex {block};
mapBlockIndex.insert(std::make_pair(blockHash, &fakeIndex));
chainActive.SetTip(&fakeIndex);
EXPECT_TRUE(chainActive.Contains(&fakeIndex));
EXPECT_EQ(0, chainActive.Height());
wtx.SetMerkleBranch(block);
wallet.AddToWallet(wtx, true, NULL);
EXPECT_FALSE(wallet.IsSpent(nullifier));
// We now have an unspent and confirmed note in the wallet (depth of 1)
wallet.GetFilteredNotes(entries, "", 0);
EXPECT_EQ(1, entries.size());
entries.clear();
wallet.GetFilteredNotes(entries, "", 1);
EXPECT_EQ(1, entries.size());
entries.clear();
wallet.GetFilteredNotes(entries, "", 2);
EXPECT_EQ(0, entries.size());
entries.clear();
// Let's spend the note.
auto wtx2 = GetValidSpend(sk, note, 5);
wallet.AddToWallet(wtx2, true, NULL);
EXPECT_FALSE(wallet.IsSpent(nullifier));
// Fake-mine a spend transaction
EXPECT_EQ(0, chainActive.Height());
CBlock block2;
block2.vtx.push_back(wtx2);
block2.hashMerkleRoot = block2.BuildMerkleTree();
block2.hashPrevBlock = blockHash;
auto blockHash2 = block2.GetHash();
CBlockIndex fakeIndex2 {block2};
mapBlockIndex.insert(std::make_pair(blockHash2, &fakeIndex2));
fakeIndex2.nHeight = 1;
chainActive.SetTip(&fakeIndex2);
EXPECT_TRUE(chainActive.Contains(&fakeIndex2));
EXPECT_EQ(1, chainActive.Height());
wtx2.SetMerkleBranch(block2);
wallet.AddToWallet(wtx2, true, NULL);
EXPECT_TRUE(wallet.IsSpent(nullifier));
// The note has been spent. By default, GetFilteredNotes() ignores spent notes.
wallet.GetFilteredNotes(entries, "", 0);
EXPECT_EQ(0, entries.size());
entries.clear();
// Let's include spent notes to retrieve it.
wallet.GetFilteredNotes(entries, "", 0, false);
EXPECT_EQ(1, entries.size());
entries.clear();
// The spent note has two confirmations.
wallet.GetFilteredNotes(entries, "", 2, false);
EXPECT_EQ(1, entries.size());
entries.clear();
// It does not have 3 confirmations.
wallet.GetFilteredNotes(entries, "", 3, false);
EXPECT_EQ(0, entries.size());
entries.clear();
// Let's receive a new note
CWalletTx wtx3;
{
auto wtx = GetValidReceive(sk, 20, true);
auto note = GetNote(sk, wtx, 0, 1);
auto nullifier = note.nullifier(sk);
mapNoteData_t noteData;
JSOutPoint jsoutpt {wtx.GetHash(), 0, 1};
CNoteData nd {sk.address(), nullifier};
noteData[jsoutpt] = nd;
wtx.SetNoteData(noteData);
wallet.AddToWallet(wtx, true, NULL);
EXPECT_FALSE(wallet.IsSpent(nullifier));
wtx3 = wtx;
}
// Fake-mine the new transaction
EXPECT_EQ(1, chainActive.Height());
CBlock block3;
block3.vtx.push_back(wtx3);
block3.hashMerkleRoot = block3.BuildMerkleTree();
block3.hashPrevBlock = blockHash2;
auto blockHash3 = block3.GetHash();
CBlockIndex fakeIndex3 {block3};
mapBlockIndex.insert(std::make_pair(blockHash3, &fakeIndex3));
fakeIndex3.nHeight = 2;
chainActive.SetTip(&fakeIndex3);
EXPECT_TRUE(chainActive.Contains(&fakeIndex3));
EXPECT_EQ(2, chainActive.Height());
wtx3.SetMerkleBranch(block3);
wallet.AddToWallet(wtx3, true, NULL);
// We now have an unspent note which has one confirmation, in addition to our spent note.
wallet.GetFilteredNotes(entries, "", 1);
EXPECT_EQ(1, entries.size());
entries.clear();
// Let's return the spent note too.
wallet.GetFilteredNotes(entries, "", 1, false);
EXPECT_EQ(2, entries.size());
entries.clear();
// Increasing number of confirmations will exclude our new unspent note.
wallet.GetFilteredNotes(entries, "", 2, false);
EXPECT_EQ(1, entries.size());
entries.clear();
// If we also ignore spent notes at thie depth, we won't find any notes.
wallet.GetFilteredNotes(entries, "", 2, true);
EXPECT_EQ(0, entries.size());
entries.clear();
// Tear down
chainActive.SetTip(NULL);
mapBlockIndex.erase(blockHash);
mapBlockIndex.erase(blockHash2);
mapBlockIndex.erase(blockHash3);
}
static void AddKey(CWallet& wallet, const CKey& key)
{
LOCK(wallet.cs_wallet);
wallet.AddKeyPubKey(key, key.GetPubKey());
}
/**
* This test covers methods on CWallet
* GenerateNewZKey()
* AddZKey()
* LoadZKey()
* LoadZKeyMetadata()
*/
TEST(wallet_zkeys_tests, store_and_load_zkeys) {
SelectParams(CBaseChainParams::MAIN);
CWallet wallet;
// wallet should be empty
std::set<libzcash::PaymentAddress> addrs;
wallet.GetPaymentAddresses(addrs);
ASSERT_EQ(0, addrs.size());
// wallet should have one key
CZCPaymentAddress paymentAddress = wallet.GenerateNewZKey();
wallet.GetPaymentAddresses(addrs);
ASSERT_EQ(1, addrs.size());
// verify wallet has spending key for the address
auto addr = paymentAddress.Get();
ASSERT_TRUE(wallet.HaveSpendingKey(addr));
// manually add new spending key to wallet
auto sk = libzcash::SpendingKey::random();
ASSERT_TRUE(wallet.AddZKey(sk));
// verify wallet did add it
addr = sk.address();
ASSERT_TRUE(wallet.HaveSpendingKey(addr));
// verify spending key stored correctly
libzcash::SpendingKey keyOut;
wallet.GetSpendingKey(addr, keyOut);
ASSERT_EQ(sk, keyOut);
// verify there are two keys
wallet.GetPaymentAddresses(addrs);
ASSERT_EQ(2, addrs.size());
ASSERT_EQ(1, addrs.count(addr));
// Load a third key into the wallet
sk = libzcash::SpendingKey::random();
ASSERT_TRUE(wallet.LoadZKey(sk));
// attach metadata to this third key
addr = sk.address();
int64_t now = GetTime();
CKeyMetadata meta(now);
ASSERT_TRUE(wallet.LoadZKeyMetadata(addr, meta));
// check metadata is the same
CKeyMetadata m= wallet.mapZKeyMetadata[addr];
ASSERT_EQ(m.nCreateTime, now);
}
void MultisigDialog::on_signTransactionButton_clicked()
{
ui->signedTransaction->clear();
if(!model)
return;
CWallet *wallet = model->getWallet();
// Decode the raw transaction
std::vector<unsigned char> txData(ParseHex(ui->transaction->text().toStdString()));
CDataStream ss(txData, SER_NETWORK, PROTOCOL_VERSION);
CTransaction tx;
try
{
ss >> tx;
}
catch(std::exception &e)
{
(void)e;
return;
}
CTransaction mergedTx(tx);
// Fetch previous transactions (inputs)
std::map<COutPoint, CScript> mapPrevOut;
for(unsigned int i = 0; i < mergedTx.vin.size(); i++)
{
CTransaction tempTx;
MapPrevTx mapPrevTx;
CTxDB txdb("r");
std::map<uint256, CTxIndex> unused;
bool fInvalid;
tempTx.vin.push_back(mergedTx.vin[i]);
tempTx.FetchInputs(txdb, unused, false, false, mapPrevTx, fInvalid);
BOOST_FOREACH(const CTxIn& txin, tempTx.vin)
{
const uint256& prevHash = txin.prevout.hash;
if(mapPrevTx.count(prevHash) && mapPrevTx[prevHash].second.vout.size() > txin.prevout.n)
mapPrevOut[txin.prevout] = mapPrevTx[prevHash].second.vout[txin.prevout.n].scriptPubKey;
}
}
// Add the redeem scripts to the wallet keystore
for(int i = 0; i < ui->inputs->count(); i++)
{
MultisigInputEntry *entry = qobject_cast<MultisigInputEntry *>(ui->inputs->itemAt(i)->widget());
if(entry)
{
QString redeemScriptStr = entry->getRedeemScript();
if(redeemScriptStr.size() > 0)
{
std::vector<unsigned char> scriptData(ParseHex(redeemScriptStr.toStdString()));
CScript redeemScript(scriptData.begin(), scriptData.end());
wallet->AddCScript(redeemScript);
}
}
}
WalletModel::UnlockContext ctx(model->requestUnlock());
if(!ctx.isValid())
return;
// Sign what we can
bool fComplete = true;
for(unsigned int i = 0; i < mergedTx.vin.size(); i++)
{
CTxIn& txin = mergedTx.vin[i];
if(mapPrevOut.count(txin.prevout) == 0)
{
fComplete = false;
continue;
}
const CScript& prevPubKey = mapPrevOut[txin.prevout];
txin.scriptSig.clear();
SignSignature(*wallet, prevPubKey, mergedTx, i, SIGHASH_ALL);
txin.scriptSig = CombineSignatures(prevPubKey, mergedTx, i, txin.scriptSig, tx.vin[i].scriptSig);
if(!VerifyScript(txin.scriptSig, prevPubKey, mergedTx, i, true, 0))
{
fComplete = false;
}
}
CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
ssTx << mergedTx;
ui->signedTransaction->setText(HexStr(ssTx.begin(), ssTx.end()).c_str());
if(fComplete)
{
ui->statusLabel->setText(tr("Transaction signature is complete"));
ui->sendTransactionButton->setEnabled(true);
}
else
{
ui->statusLabel->setText(tr("Transaction is NOT completely signed"));
ui->sendTransactionButton->setEnabled(false);
}
}