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walletmodel.h
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walletmodel.h
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// Copyright (c) 2011-2014 The Bitcoin developers
// Copyright (c) 2014-2016 The Dash developers
// Copyright (c) 2017-2020 The PIVX developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef PIVX_QT_WALLETMODEL_H
#define PIVX_QT_WALLETMODEL_H
#include "askpassphrasedialog.h"
#include "paymentrequestplus.h"
#include "walletmodeltransaction.h"
#include "allocators.h" /* for SecureString */
#include "swifttx.h"
#include "wallet/wallet.h"
#include "pairresult.h"
#include <map>
#include <vector>
#include <QObject>
class AddressTableModel;
class OptionsModel;
class RecentRequestsTableModel;
class TransactionTableModel;
class WalletModelTransaction;
class CCoinControl;
class CKeyID;
class COutPoint;
class COutput;
class CPubKey;
class CWallet;
class uint256;
QT_BEGIN_NAMESPACE
class QTimer;
QT_END_NAMESPACE
class SendCoinsRecipient
{
public:
explicit SendCoinsRecipient() : amount(0), nVersion(SendCoinsRecipient::CURRENT_VERSION) {}
explicit SendCoinsRecipient(const QString& addr, const QString& label, const CAmount& amount, const QString& message) : address(addr), label(label), amount(amount), message(message), nVersion(SendCoinsRecipient::CURRENT_VERSION) {}
// If from an insecure payment request, this is used for storing
// the addresses, e.g. address-A<br />address-B<br />address-C.
// Info: As we don't need to process addresses in here when using
// payment requests, we can abuse it for displaying an address list.
// Todo: This is a hack, should be replaced with a cleaner solution!
QString address;
QString label;
AvailableCoinsType inputType;
bool useSwiftTX = false;
// Cold staking.
bool isP2CS = false;
QString ownerAddress;
// Amount
CAmount amount;
// If from a payment request, this is used for storing the memo
QString message;
// If from a payment request, paymentRequest.IsInitialized() will be true
PaymentRequestPlus paymentRequest;
// Empty if no authentication or invalid signature/cert/etc.
QString authenticatedMerchant;
static const int CURRENT_VERSION = 1;
int nVersion;
ADD_SERIALIZE_METHODS;
template <typename Stream, typename Operation>
inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion)
{
std::string sAddress = address.toStdString();
std::string sLabel = label.toStdString();
std::string sMessage = message.toStdString();
std::string sPaymentRequest;
if (!ser_action.ForRead() && paymentRequest.IsInitialized())
paymentRequest.SerializeToString(&sPaymentRequest);
std::string sAuthenticatedMerchant = authenticatedMerchant.toStdString();
READWRITE(this->nVersion);
nVersion = this->nVersion;
READWRITE(sAddress);
READWRITE(sLabel);
READWRITE(amount);
READWRITE(sMessage);
READWRITE(sPaymentRequest);
READWRITE(sAuthenticatedMerchant);
if (ser_action.ForRead()) {
address = QString::fromStdString(sAddress);
label = QString::fromStdString(sLabel);
message = QString::fromStdString(sMessage);
if (!sPaymentRequest.empty())
paymentRequest.parse(QByteArray::fromRawData(sPaymentRequest.data(), sPaymentRequest.size()));
authenticatedMerchant = QString::fromStdString(sAuthenticatedMerchant);
}
}
};
/** Interface to PIVX wallet from Qt view code. */
class WalletModel : public QObject
{
Q_OBJECT
public:
explicit WalletModel(CWallet* wallet, OptionsModel* optionsModel, QObject* parent = 0);
~WalletModel();
enum StatusCode // Returned by sendCoins
{
OK,
InvalidAmount,
InvalidAddress,
AmountExceedsBalance,
AmountWithFeeExceedsBalance,
DuplicateAddress,
TransactionCreationFailed, // Error returned when wallet is still locked
TransactionCommitFailed,
AnonymizeOnlyUnlocked,
InsaneFee,
CannotCreateInternalAddress
};
enum EncryptionStatus {
Unencrypted, // !wallet->IsCrypted()
Locked, // wallet->IsCrypted() && wallet->IsLocked()
Unlocked, // wallet->IsCrypted() && !wallet->IsLocked()
UnlockedForAnonymizationOnly // wallet->IsCrypted() && !wallet->IsLocked() && wallet->fWalletUnlockAnonymizeOnly
};
OptionsModel* getOptionsModel();
AddressTableModel* getAddressTableModel();
TransactionTableModel* getTransactionTableModel();
RecentRequestsTableModel* getRecentRequestsTableModel();
bool isTestNetwork() const;
/** Whether cold staking is enabled or disabled in the network **/
bool isColdStakingNetworkelyEnabled() const;
CAmount getMinColdStakingAmount() const;
/* current staking status from the miner thread **/
bool isStakingStatusActive() const;
CAmount getBalance(const CCoinControl* coinControl = NULL) const;
CAmount getUnconfirmedBalance() const;
CAmount getImmatureBalance() const;
CAmount getLockedBalance() const;
CAmount getZerocoinBalance() const;
CAmount getUnconfirmedZerocoinBalance() const;
CAmount getImmatureZerocoinBalance() const;
bool haveWatchOnly() const;
CAmount getWatchBalance() const;
CAmount getWatchUnconfirmedBalance() const;
CAmount getWatchImmatureBalance() const;
CAmount getDelegatedBalance() const;
CAmount getColdStakedBalance() const;
bool isColdStaking() const;
EncryptionStatus getEncryptionStatus() const;
bool isWalletUnlocked() const;
bool isWalletLocked() const;
CKey generateNewKey() const; //for temporary paper wallet key generation
bool setAddressBook(const CTxDestination& address, const std::string& strName, const std::string& strPurpose);
void encryptKey(const CKey key, const std::string& pwd, const std::string& slt, std::vector<unsigned char>& crypted);
void decryptKey(const std::vector<unsigned char>& crypted, const std::string& slt, const std::string& pwd, CKey& key);
void emitBalanceChanged(); // Force update of UI-elements even when no values have changed
// return minted zPIV
bool getMint(const uint256& hashSerial, CZerocoinMint& mint);
// Check address for validity
bool validateAddress(const QString& address);
bool validateStakingAddress(const QString& address);
// Return status record for SendCoins, contains error id + information
struct SendCoinsReturn {
SendCoinsReturn(StatusCode status = OK) : status(status) {}
StatusCode status;
};
void setWalletDefaultFee(CAmount fee = DEFAULT_TRANSACTION_FEE);
const CWalletTx* getTx(uint256 id);
// prepare transaction for getting txfee before sending coins
SendCoinsReturn prepareTransaction(WalletModelTransaction& transaction, const CCoinControl* coinControl = NULL);
// Send coins to a list of recipients
SendCoinsReturn sendCoins(WalletModelTransaction& transaction);
// Mint zPIV
bool mintCoins(CAmount value, CCoinControl* coinControl, std::string &strError);
bool createZpivSpend(
CWalletTx &wtxNew,
std::vector<CZerocoinMint> &vMintsSelected,
bool fMintChange,
bool fMinimizeChange,
CZerocoinSpendReceipt &receipt,
std::list<std::pair<CBitcoinAddress*, CAmount>> outputs,
std::string changeAddress = ""
);
bool sendZpiv(
std::vector<CZerocoinMint> &vMintsSelected,
bool fMintChange,
bool fMinimizeChange,
CZerocoinSpendReceipt &receipt,
std::list<std::pair<CBitcoinAddress*, CAmount>> outputs,
std::string changeAddress = ""
);
bool convertBackZpiv(
CAmount value,
std::vector<CZerocoinMint> &vMintsSelected,
bool fMintChange,
bool fMinimizeChange,
CZerocoinSpendReceipt &receipt
);
// Wallet encryption
bool setWalletEncrypted(bool encrypted, const SecureString& passphrase);
// Passphrase only needed when unlocking
bool setWalletLocked(bool locked, const SecureString& passPhrase = SecureString(), bool anonymizeOnly = false);
// Method used to "lock" the wallet only for staking purposes. Just a flag that should prevent possible movements in the wallet.
// Passphrase only needed when unlocking.
bool lockForStakingOnly(const SecureString& passPhrase = SecureString());
bool changePassphrase(const SecureString& oldPass, const SecureString& newPass);
// Is wallet unlocked for anonymization only?
bool isAnonymizeOnlyUnlocked();
// Wallet backup
bool backupWallet(const QString& filename);
// RAI object for unlocking wallet, returned by requestUnlock()
class UnlockContext
{
public:
UnlockContext(bool valid, bool relock);
~UnlockContext();
bool isValid() const { return valid; }
// Copy operator and constructor transfer the context
UnlockContext(const UnlockContext& obj) { CopyFrom(obj); }
UnlockContext& operator=(const UnlockContext& rhs)
{
CopyFrom(rhs);
return *this;
}
private:
bool valid;
mutable bool relock; // mutable, as it can be set to false by copying
void CopyFrom(const UnlockContext& rhs);
};
UnlockContext requestUnlock(AskPassphraseDialog::Context context, bool relock = false);
bool getPubKey(const CKeyID& address, CPubKey& vchPubKeyOut) const;
int64_t getCreationTime() const;
int64_t getKeyCreationTime(const CPubKey& key);
int64_t getKeyCreationTime(const CBitcoinAddress& address);
PairResult getNewAddress(CBitcoinAddress& ret, std::string label = "") const;
/**
* Return a new address used to receive for delegated cold stake purpose.
*/
PairResult getNewStakingAddress(CBitcoinAddress& ret, std::string label = "") const;
bool whitelistAddressFromColdStaking(const QString &addressStr);
bool blacklistAddressFromColdStaking(const QString &address);
bool updateAddressBookPurpose(const QString &addressStr, const std::string& purpose);
std::string getLabelForAddress(const CBitcoinAddress& address);
bool getKeyId(const CBitcoinAddress& address, CKeyID& keyID);
bool isMine(CBitcoinAddress address);
bool isMine(const QString& addressStr);
bool isUsed(CBitcoinAddress address);
void getOutputs(const std::vector<COutPoint>& vOutpoints, std::vector<COutput>& vOutputs);
bool isSpent(const COutPoint& outpoint) const;
void listCoins(std::map<QString, std::vector<COutput> >& mapCoins) const;
bool isLockedCoin(uint256 hash, unsigned int n) const;
void lockCoin(COutPoint& output);
void unlockCoin(COutPoint& output);
void listLockedCoins(std::vector<COutPoint>& vOutpts);
void listZerocoinMints(std::set<CMintMeta>& setMints, bool fUnusedOnly = false, bool fMaturedOnly = false, bool fUpdateStatus = false, bool fWrongSeed = false);
std::string GetUniqueWalletBackupName();
void loadReceiveRequests(std::vector<std::string>& vReceiveRequests);
bool saveReceiveRequest(const std::string& sAddress, const int64_t nId, const std::string& sRequest);
std::string resetMintZerocoin();
std::string resetSpentZerocoin();
private:
CWallet* wallet;
bool fHaveWatchOnly;
bool fHaveMultiSig;
bool fForceCheckBalanceChanged;
// Wallet has an options model for wallet-specific options
// (transaction fee, for example)
OptionsModel* optionsModel;
AddressTableModel* addressTableModel;
TransactionTableModel* transactionTableModel;
RecentRequestsTableModel* recentRequestsTableModel;
// Cache some values to be able to detect changes
CAmount cachedBalance;
CAmount cachedUnconfirmedBalance;
CAmount cachedImmatureBalance;
CAmount cachedZerocoinBalance;
CAmount cachedUnconfirmedZerocoinBalance;
CAmount cachedImmatureZerocoinBalance;
CAmount cachedWatchOnlyBalance;
CAmount cachedWatchUnconfBalance;
CAmount cachedWatchImmatureBalance;
CAmount cachedDelegatedBalance;
CAmount cachedColdStakedBalance;
EncryptionStatus cachedEncryptionStatus;
int cachedNumBlocks;
int cachedTxLocks;
int cachedZeromintPercentage;
QTimer* pollTimer;
void subscribeToCoreSignals();
void unsubscribeFromCoreSignals();
Q_INVOKABLE void checkBalanceChanged();
signals:
// Signal that balance in wallet changed
void balanceChanged(const CAmount& balance, const CAmount& unconfirmedBalance, const CAmount& immatureBalance,
const CAmount& zerocoinBalance, const CAmount& unconfirmedZerocoinBalance, const CAmount& immatureZerocoinBalance,
const CAmount& watchOnlyBalance, const CAmount& watchUnconfBalance, const CAmount& watchImmatureBalance,
const CAmount& delegatedBalance, const CAmount& coldStakingBalance);
// Encryption status of wallet changed
void encryptionStatusChanged(int status);
// Signal emitted when wallet needs to be unlocked
// It is valid behaviour for listeners to keep the wallet locked after this signal;
// this means that the unlocking failed or was cancelled.
void requireUnlock(AskPassphraseDialog::Context context);
// Fired when a message should be reported to the user
void message(const QString& title, const QString& message, unsigned int style);
// Coins sent: from wallet, to recipient, in (serialized) transaction:
void coinsSent(CWallet* wallet, SendCoinsRecipient recipient, QByteArray transaction);
// Show progress dialog e.g. for rescan
void showProgress(const QString& title, int nProgress);
// Watch-only address added
void notifyWatchonlyChanged(bool fHaveWatchonly);
// MultiSig address added
void notifyMultiSigChanged(bool fHaveMultiSig);
// Receive tab address may have changed
void notifyReceiveAddressChanged();
public slots:
/* Wallet status might have changed */
void updateStatus();
/* New transaction, or transaction changed status */
void updateTransaction();
/* New, updated or removed address book entry */
void updateAddressBook(const QString& address, const QString& label, bool isMine, const QString& purpose, int status);
/* Zerocoin update */
void updateAddressBook(const QString &pubCoin, const QString &isUsed, int status);
/* Watch-only added */
void updateWatchOnlyFlag(bool fHaveWatchonly);
/* MultiSig added */
void updateMultiSigFlag(bool fHaveMultiSig);
/* Current, immature or unconfirmed balance might have changed - emit 'balanceChanged' if so */
void pollBalanceChanged();
/* Update address book labels in the database */
bool updateAddressBookLabels(const CTxDestination& address, const std::string& strName, const std::string& strPurpose);
};
#endif // PIVX_QT_WALLETMODEL_H