void MultisigInputEntry::on_transactionOutput_currentIndexChanged(int index)
{
    if(ui->transactionOutput->itemText(index).isEmpty())
        return;

    CTransaction tx;
    uint256 blockHash = 0;
    if(!GetTransaction(txHash, tx, blockHash))
        return;
    const CTxOut& txOut = tx.vout[index];
    CScript script = txOut.scriptPubKey;

    if(script.IsPayToScriptHash())
    {
        ui->redeemScript->setEnabled(true);

        if(model)
        {
            // Try to find the redeem script
            CTxDestination dest;
            if(ExtractDestination(script, dest))
                {
                    CScriptID scriptID = boost::get<CScriptID>(dest);
                    CScript redeemScript;
                    if(model->getWallet()->GetCScript(scriptID, redeemScript))
                        ui->redeemScript->setText(HexStr(redeemScript.begin(), redeemScript.end()).c_str());
                }
        }
    }
    else
    {
        ui->redeemScript->setEnabled(false);
    }

    emit updateAmount();
}

std::string CSuperblockManager::GetRequiredPaymentsString(int nBlockHeight)
{
    LOCK(governance.cs);
    std::string ret = "Unknown";

    // GET BEST SUPERBLOCK

    CSuperblock_sptr pSuperblock;
    if (!GetBestSuperblock(pSuperblock, nBlockHeight)) {
        LogPrint("gobject", "CSuperblockManager::GetRequiredPaymentsString -- Can't find superblock for height %d\n", nBlockHeight);
        return "error";
    }

    // LOOP THROUGH SUPERBLOCK PAYMENTS, CONFIGURE OUTPUT STRING

    for (int i = 0; i < pSuperblock->CountPayments(); i++) {
        CGovernancePayment payment;
        if (pSuperblock->GetPayment(i, payment)) {
            // PRINT NICE LOG OUTPUT FOR SUPERBLOCK PAYMENT

            CTxDestination address1;
            ExtractDestination(payment.script, address1);
            CBitcoinAddress address2(address1);

            // RETURN NICE OUTPUT FOR CONSOLE

            if (ret != "Unknown") {
                ret += ", " + address2.ToString();
            } else {
                ret = address2.ToString();
            }
        }
    }

    return ret;
}

void MasternodeManager::updateNodeList()
{
    TRY_LOCK(cs_masternodes, lockMasternodes);
    if(!lockMasternodes)
        return;

    ui->countLabel->setText("Updating...");
    ui->tableWidget->clearContents();
    ui->tableWidget->setRowCount(0);
    BOOST_FOREACH(CMasterNode mn, vecMasternodes)
    {
        int mnRow = 0;
        ui->tableWidget->insertRow(0);

 	// populate list
	// Address, Rank, Active, Active Seconds, Last Seen, Pub Key
	QTableWidgetItem *activeItem = new QTableWidgetItem(QString::number(mn.IsEnabled()));
	QTableWidgetItem *addressItem = new QTableWidgetItem(QString::fromStdString(mn.addr.ToString()));
	QTableWidgetItem *rankItem = new QTableWidgetItem(QString::number(GetMasternodeRank(mn.vin, pindexBest->nHeight)));
	QTableWidgetItem *activeSecondsItem = new QTableWidgetItem(seconds_to_DHMS((qint64)(mn.lastTimeSeen - mn.now)));
	QTableWidgetItem *lastSeenItem = new QTableWidgetItem(QString::fromStdString(DateTimeStrFormat(mn.lastTimeSeen)));

	CScript pubkey;
        pubkey =GetScriptForDestination(mn.pubkey.GetID());
        CTxDestination address1;
        ExtractDestination(pubkey, address1);
        CBitcoinAddress address2(address1);
	QTableWidgetItem *pubkeyItem = new QTableWidgetItem(QString::fromStdString(address2.ToString()));

	ui->tableWidget->setItem(mnRow, 0, addressItem);
	ui->tableWidget->setItem(mnRow, 1, rankItem);
	ui->tableWidget->setItem(mnRow, 2, activeItem);
	ui->tableWidget->setItem(mnRow, 3, activeSecondsItem);
	ui->tableWidget->setItem(mnRow, 4, lastSeenItem);
	ui->tableWidget->setItem(mnRow, 5, pubkeyItem);
    }

/*
 * Decompose CWallet transaction to model transaction records.
 */
QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *wallet, const CWalletTx &wtx)
{
    QList<TransactionRecord> parts;
    int64_t nTime = wtx.GetTxTime();
    CAmount nCredit = wtx.GetCredit(ISMINE_ALL);
    CAmount nDebit = wtx.GetDebit(ISMINE_ALL);
    CAmount nNet = nCredit - nDebit;
    uint256 hash = wtx.GetHash();
    std::map<std::string, std::string> mapValue = wtx.mapValue;

    if (nNet > 0 || wtx.IsCoinBase())
    {
        //
        // Credit
        //
        for(unsigned int i = 0; i < wtx.tx->vout.size(); i++)
        {
            const CTxOut& txout = wtx.tx->vout[i];
            isminetype mine = wallet->IsMine(txout);
            if(mine)
            {
                TransactionRecord sub(hash, nTime);
                CTxDestination address;
                sub.idx = i; // vout index
                sub.credit = txout.nValue;
                sub.involvesWatchAddress = mine & ISMINE_WATCH_ONLY;
                if (ExtractDestination(txout.scriptPubKey, address) && IsMine(*wallet, address))
                {
                    // Received by Bitcoin Address
                    sub.type = TransactionRecord::RecvWithAddress;
                    sub.address = EncodeDestination(address);
                }
                else
                {
                    // Received by IP connection (deprecated features), or a multisignature or other non-simple transaction
                    sub.type = TransactionRecord::RecvFromOther;
                    sub.address = mapValue["from"];
                }
                if (wtx.IsCoinBase())
                {
                    // Generated
                    sub.type = TransactionRecord::Generated;
                }

                parts.append(sub);
            }
        }
    }
    else
    {
        bool involvesWatchAddress = false;
        isminetype fAllFromMe = ISMINE_SPENDABLE;
        for (const CTxIn& txin : wtx.tx->vin)
        {
            isminetype mine = wallet->IsMine(txin);
            if(mine & ISMINE_WATCH_ONLY) involvesWatchAddress = true;
            if(fAllFromMe > mine) fAllFromMe = mine;
        }

        isminetype fAllToMe = ISMINE_SPENDABLE;
        for (const CTxOut& txout : wtx.tx->vout)
        {
            isminetype mine = wallet->IsMine(txout);
            if(mine & ISMINE_WATCH_ONLY) involvesWatchAddress = true;
            if(fAllToMe > mine) fAllToMe = mine;
        }

        if (fAllFromMe && fAllToMe)
        {
            // Payment to self
            CAmount nChange = wtx.GetChange();

            parts.append(TransactionRecord(hash, nTime, TransactionRecord::SendToSelf, "",
                            -(nDebit - nChange), nCredit - nChange));
            parts.last().involvesWatchAddress = involvesWatchAddress;   // maybe pass to TransactionRecord as constructor argument
        }
        else if (fAllFromMe)
        {
            //
            // Debit
            //
            CAmount nTxFee = nDebit - wtx.tx->GetValueOut();

            for (unsigned int nOut = 0; nOut < wtx.tx->vout.size(); nOut++)
            {
                const CTxOut& txout = wtx.tx->vout[nOut];
                TransactionRecord sub(hash, nTime);
                sub.idx = nOut;
                sub.involvesWatchAddress = involvesWatchAddress;

                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;
                }

//.........这里部分代码省略.........

void CoinControlDialog::updateView()
{
    if (!model || !model->getOptionsModel() || !model->getAddressTableModel())
        return;

    bool treeMode = ui->radioTreeMode->isChecked();

    ui->treeWidget->clear();
    ui->treeWidget->setEnabled(false); // performance, otherwise updateLabels would be called for every checked checkbox
    ui->treeWidget->setAlternatingRowColors(!treeMode);
    QFlags<Qt::ItemFlag> flgCheckbox = Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable;
    QFlags<Qt::ItemFlag> flgTristate = Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable | Qt::ItemIsTristate;

    int nDisplayUnit = model->getOptionsModel()->getDisplayUnit();

    std::map<QString, std::vector<COutput> > mapCoins;
    model->listCoins(mapCoins);

    for (const std::pair<QString, std::vector<COutput>>& coins : mapCoins) {
        CCoinControlWidgetItem *itemWalletAddress = new CCoinControlWidgetItem();
        itemWalletAddress->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);
        QString sWalletAddress = coins.first;
        QString sWalletLabel = model->getAddressTableModel()->labelForAddress(sWalletAddress);
        if (sWalletLabel.isEmpty())
            sWalletLabel = tr("(no label)");

        if (treeMode)
        {
            // wallet address
            ui->treeWidget->addTopLevelItem(itemWalletAddress);

            itemWalletAddress->setFlags(flgTristate);
            itemWalletAddress->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);

            // label
            itemWalletAddress->setText(COLUMN_LABEL, sWalletLabel);

            // address
            itemWalletAddress->setText(COLUMN_ADDRESS, sWalletAddress);
        }

        CAmount nSum = 0;
        int nChildren = 0;
        for (const COutput& out : coins.second) {
            nSum += out.tx->tx->vout[out.i].nValue;
            nChildren++;

            CCoinControlWidgetItem *itemOutput;
            if (treeMode)    itemOutput = new CCoinControlWidgetItem(itemWalletAddress);
            else             itemOutput = new CCoinControlWidgetItem(ui->treeWidget);
            itemOutput->setFlags(flgCheckbox);
            itemOutput->setCheckState(COLUMN_CHECKBOX,Qt::Unchecked);

            // address
            CTxDestination outputAddress;
            QString sAddress = "";
            if(ExtractDestination(out.tx->tx->vout[out.i].scriptPubKey, outputAddress))
            {
                sAddress = QString::fromStdString(CWiFicoinAddress(outputAddress).ToString());

                // if listMode or change => show wificoin address. In tree mode, address is not shown again for direct wallet address outputs
                if (!treeMode || (!(sAddress == sWalletAddress)))
                    itemOutput->setText(COLUMN_ADDRESS, sAddress);
            }

            // label
            if (!(sAddress == sWalletAddress)) // change
            {
                // tooltip from where the change comes from
                itemOutput->setToolTip(COLUMN_LABEL, tr("change from %1 (%2)").arg(sWalletLabel).arg(sWalletAddress));
                itemOutput->setText(COLUMN_LABEL, tr("(change)"));
            }
            else if (!treeMode)
            {
                QString sLabel = model->getAddressTableModel()->labelForAddress(sAddress);
                if (sLabel.isEmpty())
                    sLabel = tr("(no label)");
                itemOutput->setText(COLUMN_LABEL, sLabel);
            }

            // amount
            itemOutput->setText(COLUMN_AMOUNT, WiFicoinUnits::format(nDisplayUnit, out.tx->tx->vout[out.i].nValue));
            itemOutput->setData(COLUMN_AMOUNT, Qt::UserRole, QVariant((qlonglong)out.tx->tx->vout[out.i].nValue)); // padding so that sorting works correctly

            // date
            itemOutput->setText(COLUMN_DATE, GUIUtil::dateTimeStr(out.tx->GetTxTime()));
            itemOutput->setData(COLUMN_DATE, Qt::UserRole, QVariant((qlonglong)out.tx->GetTxTime()));

            // confirmations
            itemOutput->setText(COLUMN_CONFIRMATIONS, QString::number(out.nDepth));
            itemOutput->setData(COLUMN_CONFIRMATIONS, Qt::UserRole, QVariant((qlonglong)out.nDepth));

            // transaction hash
            uint256 txhash = out.tx->GetHash();
            itemOutput->setText(COLUMN_TXHASH, QString::fromStdString(txhash.GetHex()));

            // vout index
            itemOutput->setText(COLUMN_VOUT_INDEX, QString::number(out.i));

             // disable locked coins
//.........这里部分代码省略.........

/*
 * Decompose CWallet transaction to model transaction records.
 */
QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *wallet, const CWalletTx &wtx)
{
    QList<TransactionRecord> parts;
    int64_t nTime = wtx.GetTxTime();
    int64_t nCredit = wtx.GetCredit(true);
    int64_t nDebit = wtx.GetDebit();
    int64_t nNet = nCredit - nDebit;
    uint256 hash = wtx.GetHash(), hashPrev = 0;
    std::map<std::string, std::string> mapValue = wtx.mapValue;

    if (nNet > 0 || wtx.IsCoinBase() || wtx.IsCoinStake())
    {
        //
        // Credit - Calculate Net from CryptoLottery Rob Halford - 4-3-2015-1
        //
        for (auto const& txout : wtx.vout)
        {
            if(wallet->IsMine(txout))
            {
                TransactionRecord sub(hash, nTime);
                CTxDestination address;
                sub.idx = parts.size(); // sequence number
                sub.credit = txout.nValue;
                if (ExtractDestination(txout.scriptPubKey, address) && IsMine(*wallet, address))
                {
                    // Received by Bitcoin Address
                    sub.type = TransactionRecord::RecvWithAddress;
                    sub.address = CBitcoinAddress(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"];
                }
                if (wtx.IsCoinBase())
                {
                    // Generated (proof-of-work)
                    sub.type = TransactionRecord::Generated;
                }
                if (wtx.IsCoinStake())
                {
                    // Generated (proof-of-stake)
			        if (hashPrev == hash)
                        continue; // last coinstake output

					if (wtx.vout.size()==2)
					{  
						//Standard POR CoinStake
						sub.type = TransactionRecord::Generated;
						sub.credit = nNet > 0 ? nNet : wtx.GetValueOut() - nDebit;
						hashPrev = hash;
					}
					else
					{
						//CryptoLottery - CoinStake - 4-3-2015
						sub.type = TransactionRecord::Generated;
						if (nDebit == 0)
						{
							sub.credit = GetMyValueOut(wallet,wtx);
							sub.RemoteFlag = 1;
						}
						else
						{
							sub.credit = nNet > 0 ? nNet : GetMyValueOut(wallet,wtx) - nDebit;
						}
							
						hashPrev = hash;
					}
                }

                parts.append(sub);
            }
        }
    }
    else
    {
        bool fAllFromMe = true;
        for (auto const& txin : wtx.vin)
            fAllFromMe = fAllFromMe && wallet->IsMine(txin);

        bool fAllToMe = true;
        for (auto const& txout : wtx.vout)
            fAllToMe = fAllToMe && wallet->IsMine(txout);

        if (fAllFromMe && fAllToMe)
        {
            // Payment to self
            int64_t nChange = wtx.GetChange();

            parts.append(TransactionRecord(hash, nTime, TransactionRecord::SendToSelf, "",
                            -(nDebit - nChange), nCredit - nChange));
        }
        else if (fAllFromMe)
        {
            //
            // Debit
//.........这里部分代码省略.........

/*
 * Decompose CWallet transaction to model transaction records.
 */
QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *wallet, const CWalletTx &wtx)
{
    QList<TransactionRecord> parts;
    int64_t nTime = wtx.GetTxTime();
    int64_t nCredit = wtx.GetCredit(true);
    int64_t nDebit = wtx.GetDebit();
    int64_t nNet = nCredit - nDebit;
    uint256 hash = wtx.GetHash(), hashPrev = 0;
    std::map<std::string, std::string> mapValue = wtx.mapValue;
	
	char cbuf[256];

    if (nNet > 0 || wtx.IsCoinBase() || wtx.IsCoinStake())
    {
        //
        // Credit
        //
        for (unsigned int nOut = 0; nOut < wtx.vout.size(); nOut++)
        {
            const CTxOut& txout = wtx.vout[nOut];
			if(wallet->IsMine(txout))
            {
                TransactionRecord sub(hash, nTime);
                CTxDestination address;
                sub.idx = parts.size(); // sequence number
                sub.credit = txout.nValue;
                if (ExtractDestination(txout.scriptPubKey, address) && IsMine(*wallet, address))
                {
                    // Received by CannabisDarkcoin Address
                    sub.type = TransactionRecord::RecvWithAddress;
                    sub.address = CCannabisDarkcoinAddress(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"];
                }
                snprintf(cbuf, sizeof(cbuf), "n_%u", nOut);
                mapValue_t::const_iterator mi = wtx.mapValue.find(cbuf);
                if (mi != wtx.mapValue.end() && !mi->second.empty())
                    sub.narration = mi->second;
				if (wtx.IsCoinBase())
                {
                    // Generated (proof-of-work)
                    sub.type = TransactionRecord::Generated;
                }
                if (wtx.IsCoinStake())
                {
                    // Generated (proof-of-stake)

                    if (hashPrev == hash)
                        continue; // last coinstake output

                    sub.type = TransactionRecord::Generated;
                    sub.credit = nNet > 0 ? nNet : wtx.GetValueOut() - nDebit;
                    hashPrev = hash;
                }

                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_t nChange = wtx.GetChange();

            std::string narration("");
            mapValue_t::const_iterator mi;
            for (mi = wtx.mapValue.begin(); mi != wtx.mapValue.end(); ++mi)
            {
                if (mi->first.compare(0, 2, "n_") != 0)
                    continue;
                narration = mi->second;
                break;
            };
            
            parts.append(TransactionRecord(hash, nTime, TransactionRecord::SendToSelf, "", narration,
                            -(nDebit - nChange), nCredit - nChange));
        }
        else if (fAllFromMe)
        {
            //
            // Debit
            //
            int64_t nTxFee = nDebit - wtx.GetValueOut();
//.........这里部分代码省略.........

void MultisigDialog::on_transaction_textChanged()
{
    ui->fee->setStyleSheet("");
    ui->statusLabel->setText("");

    while(ui->inputs->count())
        delete ui->inputs->takeAt(0)->widget();
    while(ui->outputs->count())
        delete ui->outputs->takeAt(0)->widget();

    if(ui->transaction->text().size() > 0)
        ui->signTransactionButton->setEnabled(true);
    else
        ui->signTransactionButton->setEnabled(false);

    // 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)
    {
        return;
    }

    // Fill input list
    int index = -1;
    BOOST_FOREACH(const CTxIn& txin, tx.vin)
    {
        uint256 prevoutHash = txin.prevout.hash;
        addInput();
        index++;
        MultisigInputEntry *entry = qobject_cast<MultisigInputEntry *>(ui->inputs->itemAt(index)->widget());
        if(entry)
        {
            entry->setTransactionId(QString(prevoutHash.GetHex().c_str()));
            entry->setTransactionOutputIndex(txin.prevout.n);
        }
    }

    // Fill output list
    index = -1;
    BOOST_FOREACH(const CTxOut& txout, tx.vout)
    {
        CScript scriptPubKey = txout.scriptPubKey;
        CTxDestination addr;
        ExtractDestination(scriptPubKey, addr);
        CBitcoinAddress address(addr);
        SendCoinsRecipient recipient;
        recipient.address = QString(address.ToString().c_str());
        recipient.amount = txout.nValue;
        addOutput();
        index++;
        SendCoinsEntry *entry = qobject_cast<SendCoinsEntry *>(ui->outputs->itemAt(index)->widget());
        if(entry)
        {
            entry->setValue(recipient);
        }
    }

    updateRemoveEnabled();

    // Check the fee
    int64_t transactionSize = ui->transaction->text().size() / 2;
    if(transactionSize == 0)
        return;
    transactionSize += ui->inputs->count() * 73; // Future ECDSA signatures in DER format
    int64_t fee = (int64_t ) (ui->fee->text().toDouble() * COIN);
    int64_t minFee = MIN_TX_FEE * (1 + (int64_t) transactionSize / 1000);
    if(fee < minFee)
    {
        ui->fee->setStyleSheet("color:red;");
        ui->statusLabel->setText(tr("The transaction fee might be too small."));
    }
    else if(fee > minFee)
    {
        ui->fee->setStyleSheet("color:red;");
        ui->statusLabel->setText(tr("The transaction fee might be too big. Don't forget to add an output for the change address."));
    }
}

void ProcessMessageMasternodePayments(CNode* pfrom, std::string& strCommand, CDataStream& vRecv)
{
    if(IsInitialBlockDownload()) return;

    if (strCommand == "mnget") { //Masternode Payments Request Sync
        if(fLiteMode) return; //disable all Darksend/Masternode related functionality

        if(pfrom->HasFulfilledRequest("mnget")) {
            LogPrintf("mnget - peer already asked me for the list\n");
            Misbehaving(pfrom->GetId(), 20);
            return;
        }

        pfrom->FulfilledRequest("mnget");
        masternodePayments.Sync(pfrom);
        LogPrintf("mnget - Sent Masternode winners to %s\n", pfrom->addr.ToString().c_str());
    }
    else if (strCommand == "mnw") { //Masternode Payments Declare Winner

        LOCK(cs_masternodepayments);

        //this is required in litemode
        CMasternodePaymentWinner winner;
        vRecv >> winner;

        if(chainActive.Tip() == NULL) return;

        CTxDestination address1;
        ExtractDestination(winner.payee, address1);
        CBitcoinAddress address2(address1);

        uint256 hash = winner.GetHash();
        if(mapSeenMasternodeVotes.count(hash)) {
            if(fDebug) LogPrintf("mnw - seen vote %s Addr %s Height %d bestHeight %d\n", hash.ToString().c_str(), address2.ToString().c_str(), winner.nBlockHeight, chainActive.Tip()->nHeight);
            return;
        }

        if(winner.nBlockHeight < chainActive.Tip()->nHeight - 10 || winner.nBlockHeight > chainActive.Tip()->nHeight+20){
            LogPrintf("mnw - winner out of range %s Addr %s Height %d bestHeight %d\n", winner.vin.ToString().c_str(), address2.ToString().c_str(), winner.nBlockHeight, chainActive.Tip()->nHeight);
            return;
        }

        if(winner.vin.nSequence != std::numeric_limits<unsigned int>::max()){
            LogPrintf("mnw - invalid nSequence\n");
            Misbehaving(pfrom->GetId(), 100);
            return;
        }

        LogPrintf("mnw - winning vote - Vin %s Addr %s Height %d bestHeight %d\n", winner.vin.ToString().c_str(), address2.ToString().c_str(), winner.nBlockHeight, chainActive.Tip()->nHeight);

        if(!masternodePayments.CheckSignature(winner)){
            LogPrintf("mnw - invalid signature\n");
            Misbehaving(pfrom->GetId(), 100);
            return;
        }

        mapSeenMasternodeVotes.insert(make_pair(hash, winner));

        if(masternodePayments.AddWinningMasternode(winner)){
            masternodePayments.Relay(winner);
        }
    }

bool MultisigDialog::createMultisigTransaction(vector<CTxIn> vUserIn, vector<CTxOut> vUserOut, string& feeStringRet, string& errorRet)
{
    try{
        //attempt to access the given inputs
        CCoinsViewCache view = getInputsCoinsViewCache(vUserIn);

        //retrieve total input val and change dest
        CAmount totalIn = 0;
        vector<CAmount> vInputVals;
        CScript changePubKey;
        bool fFirst = true;

        for(CTxIn in : vUserIn){
            const CCoins* coins = view.AccessCoins(in.prevout.hash);
            if(!coins->IsAvailable(in.prevout.n) || coins == NULL){
                continue;
            }
            CTxOut prevout = coins->vout[in.prevout.n];
            CScript privKey = prevout.scriptPubKey;

            vInputVals.push_back(prevout.nValue);
            totalIn += prevout.nValue;

            if(!fFirst){
                if(privKey != changePubKey){
                    throw runtime_error("Address mismatch! Inputs must originate from the same multisignature address.");
                }
            }else{
                fFirst = false;
                changePubKey = privKey;
            }
        }

        CAmount totalOut = 0;

        //retrieve total output val
        for(CTxOut out : vUserOut){
            totalOut += out.nValue;
        }

        if(totalIn < totalOut){
            throw runtime_error("Not enough PIV provided as input to complete transaction (including fee).");
        }

        //calculate change amount
        CAmount changeAmount = totalIn - totalOut;
        CTxOut change(changeAmount, changePubKey);

        //generate random position for change
        unsigned int changeIndex = rand() % (vUserOut.size() + 1);

        //insert change into random position
        if(changeIndex < vUserOut.size()){
            vUserOut.insert(vUserOut.begin() + changeIndex, change);
        }else{
            vUserOut.emplace_back(change);
        }

        //populate tx
        CMutableTransaction tx;
        tx.vin = vUserIn;
        tx.vout = vUserOut;

        const CCoins* coins = view.AccessCoins(tx.vin[0].prevout.hash);

        if(coins == NULL || !coins->IsAvailable(tx.vin[0].prevout.n)){
            throw runtime_error("Coins unavailable (unconfirmed/spent)");
        }

        CScript prevPubKey = coins->vout[tx.vin[0].prevout.n].scriptPubKey;

        //get payment destination
        CTxDestination address;
        if(!ExtractDestination(prevPubKey, address)){
            throw runtime_error("Could not find address for destination.");
        }

        CScriptID hash = boost::get<CScriptID>(address);
        CScript redeemScript;

        if (!pwalletMain->GetCScript(hash, redeemScript)){
            throw runtime_error("could not redeem");
        }
        txnouttype type;
        vector<CTxDestination> addresses;
        int nReq;
        if(!ExtractDestinations(redeemScript, type, addresses, nReq)){
            throw runtime_error("Could not extract destinations from redeem script.");
        }

        for(CTxIn& in : tx.vin){
            in.scriptSig.clear();
            //scale estimate to account for multisig scriptSig
            for(unsigned int i = 0; i < 50*(nReq+addresses.size()); i++){
                in.scriptSig << INT64_MAX;
            }
        }

        //calculate fee
        unsigned int nBytes = tx.GetSerializeSize(SER_NETWORK, PROTOCOL_VERSION);
//.........这里部分代码省略.........

bool PaymentServer::processPaymentRequest(const PaymentRequestPlus& request, SendCoinsRecipient& recipient)
{
    if (!optionsModel)
        return false;

    if (request.IsInitialized()) {
        // Payment request network matches client network?
        if (!verifyNetwork(request.getDetails())) {
            Q_EMIT message(tr("Payment request rejected"), tr("Payment request network doesn't match client network."),
                CClientUIInterface::MSG_ERROR);

            return false;
        }

        // Make sure any payment requests involved are still valid.
        // This is re-checked just before sending coins in WalletModel::sendCoins().
        if (verifyExpired(request.getDetails())) {
            Q_EMIT message(tr("Payment request rejected"), tr("Payment request expired."),
                CClientUIInterface::MSG_ERROR);

            return false;
        }
    } else {
        Q_EMIT message(tr("Payment request error"), tr("Payment request is not initialized."),
            CClientUIInterface::MSG_ERROR);

        return false;
    }

    recipient.paymentRequest = request;
    recipient.message = GUIUtil::HtmlEscape(request.getDetails().memo());

    request.getMerchant(certStore.get(), recipient.authenticatedMerchant);

    QList<std::pair<CScript, CAmount> > sendingTos = request.getPayTo();
    QStringList addresses;

    for (const std::pair<CScript, CAmount>& sendingTo : sendingTos) {
        // Extract and check destination addresses
        CTxDestination dest;
        if (ExtractDestination(sendingTo.first, dest)) {
            // Append destination address
            addresses.append(QString::fromStdString(EncodeDestination(dest)));
        }
        else if (!recipient.authenticatedMerchant.isEmpty()) {
            // Unauthenticated payment requests to custom bitcoin addresses are not supported
            // (there is no good way to tell the user where they are paying in a way they'd
            // have a chance of understanding).
            Q_EMIT message(tr("Payment request rejected"),
                tr("Unverified payment requests to custom payment scripts are unsupported."),
                CClientUIInterface::MSG_ERROR);
            return false;
        }

        // Bitcoin amounts are stored as (optional) uint64 in the protobuf messages (see paymentrequest.proto),
        // but CAmount is defined as int64_t. Because of that we need to verify that amounts are in a valid range
        // and no overflow has happened.
        if (!verifyAmount(sendingTo.second)) {
            Q_EMIT message(tr("Payment request rejected"), tr("Invalid payment request."), CClientUIInterface::MSG_ERROR);
            return false;
        }

        // Extract and check amounts
        CTxOut txOut(sendingTo.second, sendingTo.first);
        if (IsDust(txOut, ::dustRelayFee)) {
            Q_EMIT message(tr("Payment request error"), tr("Requested payment amount of %1 is too small (considered dust).")
                .arg(BitcoinUnits::formatWithUnit(optionsModel->getDisplayUnit(), sendingTo.second)),
                CClientUIInterface::MSG_ERROR);

            return false;
        }

        recipient.amount += sendingTo.second;
        // Also verify that the final amount is still in a valid range after adding additional amounts.
        if (!verifyAmount(recipient.amount)) {
            Q_EMIT message(tr("Payment request rejected"), tr("Invalid payment request."), CClientUIInterface::MSG_ERROR);
            return false;
        }
    }
    // Store addresses and format them to fit nicely into the GUI
    recipient.address = addresses.join("<br />");

    if (!recipient.authenticatedMerchant.isEmpty()) {
        qDebug() << "PaymentServer::processPaymentRequest: Secure payment request from " << recipient.authenticatedMerchant;
    }
    else {
        qDebug() << "PaymentServer::processPaymentRequest: Insecure payment request to " << addresses.join(", ");
    }

    return true;
}

void MultisigDialog::on_transaction_textChanged()
{
    while(ui->inputs->count())
        delete ui->inputs->takeAt(0)->widget();
    while(ui->outputs->count())
        delete ui->outputs->takeAt(0)->widget();

    if(ui->transaction->text().size() > 0)
        ui->signTransactionButton->setEnabled(true);
    else
        ui->signTransactionButton->setEnabled(false);

    // 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;
    }

    // Fill input list
    int index = -1;
    BOOST_FOREACH(const CTxIn& txin, tx.vin)
    {
        uint256 prevoutHash = txin.prevout.hash;
        addInput();
        index++;
        MultisigInputEntry *entry = qobject_cast<MultisigInputEntry *>(ui->inputs->itemAt(index)->widget());
        if(entry)
        {
            entry->setTransactionId(QString(prevoutHash.GetHex().c_str()));
            entry->setTransactionOutputIndex(txin.prevout.n);
        }
    }

    // Fill output list
    index = -1;
    BOOST_FOREACH(const CTxOut& txout, tx.vout)
    {
        CScript scriptPubKey = txout.scriptPubKey;
        CTxDestination addr;
        ExtractDestination(scriptPubKey, addr);
        CBitcoinAddress address(addr);
        SendCoinsRecipient recipient;
        recipient.address = QString(address.ToString().c_str());
        recipient.amount = txout.nValue;
        addOutput();
        index++;
        SendCoinsEntry *entry = qobject_cast<SendCoinsEntry *>(ui->outputs->itemAt(index)->widget());
        if(entry)
        {
            entry->setValue(recipient);
        }
    }

    updateRemoveEnabled();
}

//.........这里部分代码省略.........
                break;
            case THRESHOLD_LOCKED_IN:
                // Ensure bit is set in block version
                pblock->nVersion |= VersionBitsMask(consensusParams, pos);
                // FALL THROUGH to get vbavailable set...
            case THRESHOLD_STARTED:
            {
                const struct BIP9DeploymentInfo& vbinfo = VersionBitsDeploymentInfo[pos];
                vbavailable.push_back(Pair(gbt_vb_name(pos), consensusParams.vDeployments[pos].bit));
                if (setClientRules.find(vbinfo.name) == setClientRules.end()) {
                    if (!vbinfo.gbt_force) {
                        // If the client doesn't support this, don't indicate it in the [default] version
                        pblock->nVersion &= ~VersionBitsMask(consensusParams, pos);
                    }
                }
                break;
            }
            case THRESHOLD_ACTIVE:
            {
                // Add to rules only
                const struct BIP9DeploymentInfo& vbinfo = VersionBitsDeploymentInfo[pos];
                aRules.push_back(gbt_vb_name(pos));
                if (setClientRules.find(vbinfo.name) == setClientRules.end()) {
                    // Not supported by the client; make sure it's safe to proceed
                    if (!vbinfo.gbt_force) {
                        // If we do anything other than throw an exception here, be sure version/force isn't sent to old clients
                        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Support for '%s' rule requires explicit client support", vbinfo.name));
                    }
                }
                break;
            }
        }
    }
    result.push_back(Pair("version", pblock->nVersion));
    result.push_back(Pair("rules", aRules));
    result.push_back(Pair("vbavailable", vbavailable));
    result.push_back(Pair("vbrequired", int(0)));

    if (nMaxVersionPreVB >= 2) {
        // If VB is supported by the client, nMaxVersionPreVB is -1, so we won't get here
        // Because BIP 34 changed how the generation transaction is serialized, we can only use version/force back to v2 blocks
        // This is safe to do [otherwise-]unconditionally only because we are throwing an exception above if a non-force deployment gets activated
        // Note that this can probably also be removed entirely after the first BIP9 non-force deployment (ie, probably segwit) gets activated
        aMutable.push_back("version/force");
    }

    result.push_back(Pair("previousblockhash", pblock->hashPrevBlock.GetHex()));
    result.push_back(Pair("transactions", transactions));
    result.push_back(Pair("coinbaseaux", aux));
    result.push_back(Pair("coinbasevalue", (int64_t)pblock->vtx[0]->GetValueOut()));
    result.push_back(Pair("longpollid", chainActive.Tip()->GetBlockHash().GetHex() + i64tostr(nTransactionsUpdatedLast)));
    result.push_back(Pair("target", hashTarget.GetHex()));
    result.push_back(Pair("mintime", (int64_t)pindexPrev->GetMedianTimePast()+1));
    result.push_back(Pair("mutable", aMutable));
    result.push_back(Pair("noncerange", "00000000ffffffff"));
    result.push_back(Pair("sigoplimit", (int64_t)MaxBlockSigOps(fDIP0001ActiveAtTip)));
    result.push_back(Pair("sizelimit", (int64_t)MaxBlockSize(fDIP0001ActiveAtTip)));
    result.push_back(Pair("curtime", pblock->GetBlockTime()));
    result.push_back(Pair("bits", strprintf("%08x", pblock->nBits)));
    result.push_back(Pair("previousbits", strprintf("%08x", pblocktemplate->nPrevBits)));
    result.push_back(Pair("height", (int64_t)(pindexPrev->nHeight+1)));

    UniValue masternodeObj(UniValue::VARR);
    for (const auto& txout : pblocktemplate->voutMasternodePayments) {
        CTxDestination address1;
        ExtractDestination(txout.scriptPubKey, address1);
        CBitcoinAddress address2(address1);

        UniValue obj(UniValue::VOBJ);
        obj.push_back(Pair("payee", address2.ToString().c_str()));
        obj.push_back(Pair("script", HexStr(txout.scriptPubKey)));
        obj.push_back(Pair("amount", txout.nValue));
        masternodeObj.push_back(obj);
    }

    result.push_back(Pair("masternode", masternodeObj));
    result.push_back(Pair("masternode_payments_started", pindexPrev->nHeight + 1 > consensusParams.nMasternodePaymentsStartBlock));
    result.push_back(Pair("masternode_payments_enforced", deterministicMNManager->IsDeterministicMNsSporkActive() || sporkManager.IsSporkActive(SPORK_8_MASTERNODE_PAYMENT_ENFORCEMENT)));

    UniValue superblockObjArray(UniValue::VARR);
    if(pblocktemplate->voutSuperblockPayments.size()) {
        for (const auto& txout : pblocktemplate->voutSuperblockPayments) {
            UniValue entry(UniValue::VOBJ);
            CTxDestination address1;
            ExtractDestination(txout.scriptPubKey, address1);
            CBitcoinAddress address2(address1);
            entry.push_back(Pair("payee", address2.ToString().c_str()));
            entry.push_back(Pair("script", HexStr(txout.scriptPubKey)));
            entry.push_back(Pair("amount", txout.nValue));
            superblockObjArray.push_back(entry);
        }
    }
    result.push_back(Pair("superblock", superblockObjArray));
    result.push_back(Pair("superblocks_started", pindexPrev->nHeight + 1 > consensusParams.nSuperblockStartBlock));
    result.push_back(Pair("superblocks_enabled", sporkManager.IsSporkActive(SPORK_9_SUPERBLOCKS_ENABLED)));

    result.push_back(Pair("coinbase_payload", HexStr(pblock->vtx[0]->vExtraPayload)));

    return result;
}

void ProcessMessageAlphanodePayments(CNode* pfrom, std::string& strCommand, CDataStream& vRecv)
{
    if(!darkSendPool.IsBlockchainSynced()) return;

    if (strCommand == "mnget") { //Alpha Node Payments Request Sync

        if(pfrom->HasFulfilledRequest("mnget")) {
            LogPrintf("mnget - peer already asked me for the list\n");
            Misbehaving(pfrom->GetId(), 20);
            return;
        }

        pfrom->FulfilledRequest("mnget");
        alphanodePayments.Sync(pfrom);
        LogPrintf("mnget - Sent Alpha Node winners to %s\n", pfrom->addr.ToString().c_str());
    }
    else if (strCommand == "mnw") { //Alpha Node Payments Declare Winner

        LOCK(cs_alphanodepayments);

        //this is required in litemode
        CAlphanodePaymentWinner winner;
        vRecv >> winner;

        if(pindexBest == NULL) return;

        CTxDestination address1;
        ExtractDestination(winner.payee, address1);
        CTaoAddress address2(address1);

        uint256 hash = winner.GetHash();
        if(mapSeenAlphanodeVotes.count(hash)) {
            if(fDebug) LogPrintf("mnw - seen vote %s Addr %s Height %d bestHeight %d\n", hash.ToString().c_str(), address2.ToString().c_str(), winner.nBlockHeight, pindexBest->nHeight);
            return;
        }

        if(winner.nBlockHeight < pindexBest->nHeight - 10 || winner.nBlockHeight > pindexBest->nHeight+20){
            LogPrintf("mnw - winner out of range %s Addr %s Height %d bestHeight %d\n", winner.vin.ToString().c_str(), address2.ToString().c_str(), winner.nBlockHeight, pindexBest->nHeight);
            return;
        }

        if(winner.vin.nSequence != std::numeric_limits<unsigned int>::max()){
            LogPrintf("mnw - invalid nSequence\n");
            Misbehaving(pfrom->GetId(), 100);
            return;
        }

        LogPrintf("mnw - winning vote - Vin %s Addr %s Height %d bestHeight %d\n", winner.vin.ToString().c_str(), address2.ToString().c_str(), winner.nBlockHeight, pindexBest->nHeight);

        if(!alphanodePayments.CheckSignature(winner)){
            LogPrintf("mnw - invalid signature\n");
            Misbehaving(pfrom->GetId(), 100);
            return;
        }

        mapSeenAlphanodeVotes.insert(make_pair(hash, winner));

        if(alphanodePayments.AddWinningAlphanode(winner)){
            alphanodePayments.Relay(winner);
        }
    }