X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Fqt%2Fwalletmodel.cpp;h=b14388aed3314f5b0c880ce4803764b0cb7c8913;hb=b0368da0e15b5506548da3462e14b038ca21ae69;hp=f962b9a7c7445bc554a10cc66044069199017164;hpb=ebff5c40a234f38429965c391da020bbf8312b1b;p=novacoin.git

diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
index f962b9a..b14388a 100644
--- a/src/qt/walletmodel.cpp
+++ b/src/qt/walletmodel.cpp
@@ -4,23 +4,36 @@
 #include "addresstablemodel.h"
 #include "transactiontablemodel.h"
 
-#include "headers.h"
+#include "ui_interface.h"
+#include "wallet.h"
+#include "walletdb.h" // for BackupWallet
+#include "base58.h"
 
+#include <QSet>
 #include <QTimer>
 
-WalletModel::WalletModel(CWallet *wallet, QObject *parent) :
-    QObject(parent), wallet(wallet), optionsModel(0), addressTableModel(0),
-    transactionTableModel(0)
+WalletModel::WalletModel(CWallet *wallet, OptionsModel *optionsModel, QObject *parent) :
+    QObject(parent), wallet(wallet), optionsModel(optionsModel), addressTableModel(0),
+    transactionTableModel(0),
+    cachedBalance(0), cachedStake(0), cachedUnconfirmedBalance(0), cachedImmatureBalance(0),
+    cachedNumTransactions(0),
+    cachedEncryptionStatus(Unencrypted),
+    cachedNumBlocks(0)
 {
-    // Until signal notifications is built into the bitcoin core,
-    //  simply update everything after polling using a timer.
-    QTimer *timer = new QTimer(this);
-    connect(timer, SIGNAL(timeout()), this, SLOT(update()));
-    timer->start(MODEL_UPDATE_DELAY);
-
-    optionsModel = new OptionsModel(wallet, this);
     addressTableModel = new AddressTableModel(wallet, this);
     transactionTableModel = new TransactionTableModel(wallet, this);
+
+    // This timer will be fired repeatedly to update the balance
+    pollTimer = new QTimer(this);
+    connect(pollTimer, SIGNAL(timeout()), this, SLOT(pollBalanceChanged()));
+    pollTimer->start(MODEL_UPDATE_DELAY);
+
+    subscribeToCoreSignals();
+}
+
+WalletModel::~WalletModel()
+{
+    unsubscribeFromCoreSignals();
 }
 
 qint64 WalletModel::getBalance() const
@@ -28,84 +41,207 @@ qint64 WalletModel::getBalance() const
     return wallet->GetBalance();
 }
 
+void WalletModel::getBalance(qint64 &nTotal, qint64 &nWatchOnly) const
+{
+    wallet->GetBalance(nTotal, nWatchOnly);
+}
+
+qint64 WalletModel::getUnconfirmedBalance() const
+{
+    return wallet->GetUnconfirmedBalance();
+}
+
+qint64 WalletModel::getStake() const
+{
+    return wallet->GetStake();
+}
+
+qint64 WalletModel::getImmatureBalance() const
+{
+    return wallet->GetImmatureBalance();
+}
+
 int WalletModel::getNumTransactions() const
 {
     int numTransactions = 0;
-    CRITICAL_BLOCK(wallet->cs_mapWallet)
     {
+        LOCK(wallet->cs_wallet);
         numTransactions = wallet->mapWallet.size();
     }
     return numTransactions;
 }
 
-void WalletModel::update()
+void WalletModel::updateStatus()
+{
+    EncryptionStatus newEncryptionStatus = getEncryptionStatus();
+
+    if(cachedEncryptionStatus != newEncryptionStatus)
+        emit encryptionStatusChanged(newEncryptionStatus);
+}
+
+void WalletModel::pollBalanceChanged()
+{
+    if(nBestHeight != cachedNumBlocks)
+    {
+        // Balance and number of transactions might have changed
+        cachedNumBlocks = nBestHeight;
+        checkBalanceChanged();
+    }
+}
+
+void WalletModel::checkBalanceChanged()
+{
+    qint64 newBalanceTotal=0, newBalanceWatchOnly=0;
+    getBalance(newBalanceTotal, newBalanceWatchOnly);
+
+    qint64 newStake = getStake();
+    qint64 newUnconfirmedBalance = getUnconfirmedBalance();
+    qint64 newImmatureBalance = getImmatureBalance();
+
+    if(cachedBalance != newBalanceTotal || cachedStake != newStake || cachedUnconfirmedBalance != newUnconfirmedBalance || cachedImmatureBalance != newImmatureBalance)
+    {
+        cachedBalance = newBalanceTotal;
+        cachedStake = newStake;
+        cachedUnconfirmedBalance = newUnconfirmedBalance;
+        cachedImmatureBalance = newImmatureBalance;
+        emit balanceChanged(newBalanceTotal, newBalanceWatchOnly, newStake, newUnconfirmedBalance, newImmatureBalance);
+    }
+}
+
+void WalletModel::updateTransaction(const QString &hash, int status)
+{
+    if(transactionTableModel)
+        transactionTableModel->updateTransaction(hash, status);
+
+    // Balance and number of transactions might have changed
+    checkBalanceChanged();
+
+    int newNumTransactions = getNumTransactions();
+    if(cachedNumTransactions != newNumTransactions)
+    {
+        cachedNumTransactions = newNumTransactions;
+        emit numTransactionsChanged(newNumTransactions);
+    }
+}
+
+void WalletModel::updateAddressBook(const QString &address, const QString &label, bool isMine, int status)
 {
-    // Plainly emit all signals for now. To be more efficient this should check
-    //   whether the values actually changed first, although it'd be even better if these
-    //   were events coming in from the bitcoin core.
-    emit balanceChanged(getBalance());
-    emit numTransactionsChanged(getNumTransactions());
+    if(addressTableModel)
+        addressTableModel->updateEntry(address, label, isMine, status);
+}
 
-    addressTableModel->update();
+bool WalletModel::validateAddress(const QString &address)
+{
+    CBitcoinAddress addressParsed(address.toStdString());
+    return addressParsed.IsValid();
 }
 
-WalletModel::StatusCode WalletModel::sendCoins(const QString &payTo, qint64 payAmount, const QString &addToAddressBookAs)
+WalletModel::SendCoinsReturn WalletModel::sendCoins(const QList<SendCoinsRecipient> &recipients, const CCoinControl *coinControl)
 {
-    uint160 hash160 = 0;
-    bool valid = false;
+    qint64 total = 0;
+    QSet<QString> setAddress;
+    QString hex;
 
-    if(!AddressToHash160(payTo.toUtf8().constData(), hash160))
+    if(recipients.empty())
     {
-        return InvalidAddress;
+        return OK;
     }
 
-    if(payAmount <= 0)
+    // Pre-check input data for validity
+    foreach(const SendCoinsRecipient &rcp, recipients)
     {
-        return InvalidAmount;
+        if(!validateAddress(rcp.address))
+        {
+            return InvalidAddress;
+        }
+        setAddress.insert(rcp.address);
+
+        if(rcp.amount <= 0)
+        {
+            return InvalidAmount;
+        }
+        total += rcp.amount;
     }
 
-    if(payAmount > getBalance())
+    if(recipients.size() > setAddress.size())
+    {
+        return DuplicateAddress;
+    }
+
+    int64 nBalance = 0;
+    std::vector<COutput> vCoins;
+    wallet->AvailableCoins(vCoins, true, coinControl);
+
+    BOOST_FOREACH(const COutput& out, vCoins)
+        if(out.fSpendable)
+            nBalance += out.tx->vout[out.i].nValue;
+
+    if(total > nBalance)
     {
         return AmountExceedsBalance;
     }
 
-    if((payAmount + nTransactionFee) > getBalance())
+    if((total + nTransactionFee) > nBalance)
     {
-        return AmountWithFeeExceedsBalance;
+        return SendCoinsReturn(AmountWithFeeExceedsBalance, nTransactionFee);
     }
 
-    CRITICAL_BLOCK(cs_main)
     {
-        // Send to bitcoin address
+        LOCK2(cs_main, wallet->cs_wallet);
+
+        // Sendmany
+        std::vector<std::pair<CScript, int64> > vecSend;
+        foreach(const SendCoinsRecipient &rcp, recipients)
+        {
+            CScript scriptPubKey;
+            scriptPubKey.SetDestination(CBitcoinAddress(rcp.address.toStdString()).Get());
+            vecSend.push_back(make_pair(scriptPubKey, rcp.amount));
+        }
+
         CWalletTx wtx;
-        CScript scriptPubKey;
-        scriptPubKey << OP_DUP << OP_HASH160 << hash160 << OP_EQUALVERIFY << OP_CHECKSIG;
+        CReserveKey keyChange(wallet);
+        int64 nFeeRequired = 0;
+        bool fCreated = wallet->CreateTransaction(vecSend, wtx, keyChange, nFeeRequired, coinControl);
 
-        std::string strError = wallet->SendMoney(scriptPubKey, payAmount, wtx, true);
-        if (strError == "")
+        if(!fCreated)
         {
-            // OK
+            if((total + nFeeRequired) > nBalance) // FIXME: could cause collisions in the future
+            {
+                return SendCoinsReturn(AmountWithFeeExceedsBalance, nFeeRequired);
+            }
+            return TransactionCreationFailed;
         }
-        else if (strError == "ABORTED")
+        if(!uiInterface.ThreadSafeAskFee(nFeeRequired, tr("Sending...").toStdString()))
         {
             return Aborted;
         }
-        else
+        if(!wallet->CommitTransaction(wtx, keyChange))
         {
-            emit error(tr("Sending..."), QString::fromStdString(strError));
-            return MiscError;
+            return TransactionCommitFailed;
         }
+        hex = QString::fromStdString(wtx.GetHash().GetHex());
     }
 
-    // Add addresses that we've sent to to the address book
-    std::string strAddress = payTo.toStdString();
-    CRITICAL_BLOCK(wallet->cs_mapAddressBook)
+    // Add addresses / update labels that we've sent to to the address book
+    foreach(const SendCoinsRecipient &rcp, recipients)
     {
-        if (!wallet->mapAddressBook.count(strAddress))
-            wallet->SetAddressBookName(strAddress, addToAddressBookAs.toStdString());
+        std::string strAddress = rcp.address.toStdString();
+        CTxDestination dest = CBitcoinAddress(strAddress).Get();
+        std::string strLabel = rcp.label.toStdString();
+        {
+            LOCK(wallet->cs_wallet);
+
+            std::map<CTxDestination, std::string>::iterator mi = wallet->mapAddressBook.find(dest);
+
+            // Check if we have a new address or an updated label
+            if (mi == wallet->mapAddressBook.end() || mi->second != strLabel)
+            {
+                wallet->SetAddressBookName(dest, strLabel);
+            }
+        }
     }
 
-    return OK;
+    return SendCoinsReturn(OK, 0, hex);
 }
 
 OptionsModel *WalletModel::getOptionsModel()
@@ -123,18 +259,235 @@ TransactionTableModel *WalletModel::getTransactionTableModel()
     return transactionTableModel;
 }
 
-/* Look up label for address in address book, if not found return empty string.
- */
-QString WalletModel::labelForAddress(const QString &address) const
+WalletModel::EncryptionStatus WalletModel::getEncryptionStatus() const
+{
+    if(!wallet->IsCrypted())
+    {
+        return Unencrypted;
+    }
+    else if(wallet->IsLocked())
+    {
+        return Locked;
+    }
+    else
+    {
+        return Unlocked;
+    }
+}
+
+bool WalletModel::setWalletEncrypted(bool encrypted, const SecureString &passphrase)
+{
+    if(encrypted)
+    {
+        // Encrypt
+        return wallet->EncryptWallet(passphrase);
+    }
+    else
+    {
+        // Decrypt -- TODO; not supported yet
+        return false;
+    }
+}
+
+bool WalletModel::setWalletLocked(bool locked, const SecureString &passPhrase)
+{
+    if(locked)
+    {
+        // Lock
+        return wallet->Lock();
+    }
+    else
+    {
+        // Unlock
+        return wallet->Unlock(passPhrase);
+    }
+}
+
+bool WalletModel::changePassphrase(const SecureString &oldPass, const SecureString &newPass)
+{
+    bool retval;
+    {
+        LOCK(wallet->cs_wallet);
+        wallet->Lock(); // Make sure wallet is locked before attempting pass change
+        retval = wallet->ChangeWalletPassphrase(oldPass, newPass);
+    }
+    return retval;
+}
+
+void WalletModel::getStakeWeight(uint64& nMinWeight, uint64& nMaxWeight, uint64& nWeight)
+{
+    wallet->GetStakeWeight(*wallet, nMinWeight, nMaxWeight, nWeight);
+}
+
+void WalletModel::getStakeWeightFromValue(const int64& nTime, const int64& nValue, uint64& nWeight)
+{
+    wallet->GetStakeWeightFromValue(nTime, nValue, nWeight);
+}
+
+bool WalletModel::dumpWallet(const QString &filename)
+{
+    return DumpWallet(wallet, filename.toLocal8Bit().data());
+}
+
+bool WalletModel::importWallet(const QString &filename)
+{
+    return ImportWallet(wallet, filename.toLocal8Bit().data());
+}
+
+bool WalletModel::backupWallet(const QString &filename)
+{
+    return BackupWallet(*wallet, filename.toLocal8Bit().data());
+}
+
+// Handlers for core signals
+static void NotifyKeyStoreStatusChanged(WalletModel *walletmodel, CCryptoKeyStore *wallet)
+{
+    OutputDebugStringF("NotifyKeyStoreStatusChanged\n");
+    QMetaObject::invokeMethod(walletmodel, "updateStatus", Qt::QueuedConnection);
+}
+
+static void NotifyAddressBookChanged(WalletModel *walletmodel, CWallet *wallet, const CTxDestination &address, const std::string &label, bool isMine, ChangeType status)
+{
+    OutputDebugStringF("NotifyAddressBookChanged %s %s isMine=%i status=%i\n", CBitcoinAddress(address).ToString().c_str(), label.c_str(), isMine, status);
+    QMetaObject::invokeMethod(walletmodel, "updateAddressBook", Qt::QueuedConnection,
+                              Q_ARG(QString, QString::fromStdString(CBitcoinAddress(address).ToString())),
+                              Q_ARG(QString, QString::fromStdString(label)),
+                              Q_ARG(bool, isMine),
+                              Q_ARG(int, status));
+}
+
+static void NotifyTransactionChanged(WalletModel *walletmodel, CWallet *wallet, const uint256 &hash, ChangeType status)
+{
+    OutputDebugStringF("NotifyTransactionChanged %s status=%i\n", hash.GetHex().c_str(), status);
+    QMetaObject::invokeMethod(walletmodel, "updateTransaction", Qt::QueuedConnection,
+                              Q_ARG(QString, QString::fromStdString(hash.GetHex())),
+                              Q_ARG(int, status));
+}
+
+void WalletModel::subscribeToCoreSignals()
+{
+    // Connect signals to wallet
+    wallet->NotifyStatusChanged.connect(boost::bind(&NotifyKeyStoreStatusChanged, this, _1));
+    wallet->NotifyAddressBookChanged.connect(boost::bind(NotifyAddressBookChanged, this, _1, _2, _3, _4, _5));
+    wallet->NotifyTransactionChanged.connect(boost::bind(NotifyTransactionChanged, this, _1, _2, _3));
+}
+
+void WalletModel::unsubscribeFromCoreSignals()
+{
+    // Disconnect signals from wallet
+    wallet->NotifyStatusChanged.disconnect(boost::bind(&NotifyKeyStoreStatusChanged, this, _1));
+    wallet->NotifyAddressBookChanged.disconnect(boost::bind(NotifyAddressBookChanged, this, _1, _2, _3, _4, _5));
+    wallet->NotifyTransactionChanged.disconnect(boost::bind(NotifyTransactionChanged, this, _1, _2, _3));
+}
+
+// WalletModel::UnlockContext implementation
+WalletModel::UnlockContext WalletModel::requestUnlock()
+{
+    bool was_locked = getEncryptionStatus() == Locked;
+    
+    if ((!was_locked) && fWalletUnlockMintOnly)
+    {
+       setWalletLocked(true);
+       was_locked = getEncryptionStatus() == Locked;
+
+    }
+    if(was_locked)
+    {
+        // Request UI to unlock wallet
+        emit requireUnlock();
+    }
+    // If wallet is still locked, unlock was failed or cancelled, mark context as invalid
+    bool valid = getEncryptionStatus() != Locked;
+
+    return UnlockContext(this, valid, was_locked && !fWalletUnlockMintOnly);
+}
+
+WalletModel::UnlockContext::UnlockContext(WalletModel *wallet, bool valid, bool relock):
+        wallet(wallet),
+        valid(valid),
+        relock(relock)
 {
-    CRITICAL_BLOCK(wallet->cs_mapAddressBook)
+}
+
+WalletModel::UnlockContext::~UnlockContext()
+{
+    if(valid && relock)
     {
-        std::map<std::string, std::string>::iterator mi = wallet->mapAddressBook.find(address.toStdString());
-        if (mi != wallet->mapAddressBook.end())
+        wallet->setWalletLocked(true);
+    }
+}
+
+void WalletModel::UnlockContext::CopyFrom(const UnlockContext& rhs)
+{
+    // Transfer context; old object no longer relocks wallet
+    *this = rhs;
+    rhs.relock = false;
+}
+
+bool WalletModel::getPubKey(const CKeyID &address, CPubKey& vchPubKeyOut) const
+{
+    return wallet->GetPubKey(address, vchPubKeyOut);   
+}
+
+// returns a list of COutputs from COutPoints
+void WalletModel::getOutputs(const std::vector<COutPoint>& vOutpoints, std::vector<COutput>& vOutputs)
+{
+    BOOST_FOREACH(const COutPoint& outpoint, vOutpoints)
+    {
+        if (!wallet->mapWallet.count(outpoint.hash)) continue;
+        COutput out(&wallet->mapWallet[outpoint.hash], outpoint.n, wallet->mapWallet[outpoint.hash].GetDepthInMainChain(), true);
+        vOutputs.push_back(out);
+    }
+}
+
+// AvailableCoins + LockedCoins grouped by wallet address (put change in one group with wallet address) 
+void WalletModel::listCoins(std::map<QString, std::vector<COutput> >& mapCoins) const
+{
+    std::vector<COutput> vCoins;
+    wallet->AvailableCoins(vCoins);
+    std::vector<COutPoint> vLockedCoins;
+
+    // add locked coins
+    BOOST_FOREACH(const COutPoint& outpoint, vLockedCoins)
+    {
+        if (!wallet->mapWallet.count(outpoint.hash)) continue;
+        COutput out(&wallet->mapWallet[outpoint.hash], outpoint.n, wallet->mapWallet[outpoint.hash].GetDepthInMainChain(), true);
+        vCoins.push_back(out);
+    }
+
+    BOOST_FOREACH(const COutput& out, vCoins)
+    {
+        COutput cout = out;
+
+        while (wallet->IsChange(cout.tx->vout[cout.i]) && cout.tx->vin.size() > 0 && wallet->IsMine(cout.tx->vin[0]))
         {
-            return QString::fromStdString(mi->second);
+            if (!wallet->mapWallet.count(cout.tx->vin[0].prevout.hash)) break;
+            cout = COutput(&wallet->mapWallet[cout.tx->vin[0].prevout.hash], cout.tx->vin[0].prevout.n, 0, true);
         }
+
+        CTxDestination address;
+        if(!out.fSpendable || !ExtractDestination(cout.tx->vout[cout.i].scriptPubKey, address))
+            continue;
+        mapCoins[CBitcoinAddress(address).ToString().c_str()].push_back(out);
     }
-    return QString();
 }
 
+bool WalletModel::isLockedCoin(uint256 hash, unsigned int n) const
+{
+    return false;
+}
+
+void WalletModel::lockCoin(COutPoint& output)
+{
+    return;
+}
+
+void WalletModel::unlockCoin(COutPoint& output)
+{
+    return;
+}
+
+void WalletModel::listLockedCoins(std::vector<COutPoint>& vOutpts)
+{
+    return;
+}