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1266 lines
43 KiB
1266 lines
43 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto |
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// Copyright (c) 2009-2017 The Bitcoin Core developers |
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// Distributed under the MIT software license, see the accompanying |
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// file COPYING or http://www.opensource.org/licenses/mit-license.php. |
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#ifndef BITCOIN_WALLET_WALLET_H |
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#define BITCOIN_WALLET_WALLET_H |
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#include <amount.h> |
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#include <policy/feerate.h> |
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#include <streams.h> |
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#include <tinyformat.h> |
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#include <ui_interface.h> |
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#include <utilstrencodings.h> |
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#include <validationinterface.h> |
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#include <script/ismine.h> |
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#include <script/sign.h> |
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#include <wallet/crypter.h> |
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#include <wallet/walletdb.h> |
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#include <wallet/rpcwallet.h> |
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|
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#include <algorithm> |
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#include <atomic> |
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#include <map> |
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#include <set> |
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#include <stdexcept> |
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#include <stdint.h> |
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#include <string> |
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#include <utility> |
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#include <vector> |
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typedef CWallet* CWalletRef; |
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extern std::vector<CWalletRef> vpwallets; |
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|
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/** |
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* Settings |
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*/ |
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extern CFeeRate payTxFee; |
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extern unsigned int nTxConfirmTarget; |
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extern bool bSpendZeroConfChange; |
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extern bool fWalletRbf; |
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|
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static const unsigned int DEFAULT_KEYPOOL_SIZE = 1000; |
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//! -paytxfee default |
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static const CAmount DEFAULT_TRANSACTION_FEE = 0; |
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//! -fallbackfee default |
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static const CAmount DEFAULT_FALLBACK_FEE = 20000; |
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//! -m_discard_rate default |
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static const CAmount DEFAULT_DISCARD_FEE = 10000; |
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//! -mintxfee default |
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static const CAmount DEFAULT_TRANSACTION_MINFEE = 1000; |
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//! minimum recommended increment for BIP 125 replacement txs |
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static const CAmount WALLET_INCREMENTAL_RELAY_FEE = 5000; |
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//! target minimum change amount |
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static const CAmount MIN_CHANGE = CENT; |
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//! final minimum change amount after paying for fees |
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static const CAmount MIN_FINAL_CHANGE = MIN_CHANGE/2; |
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//! Default for -spendzeroconfchange |
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static const bool DEFAULT_SPEND_ZEROCONF_CHANGE = true; |
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//! Default for -walletrejectlongchains |
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static const bool DEFAULT_WALLET_REJECT_LONG_CHAINS = false; |
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//! -txconfirmtarget default |
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static const unsigned int DEFAULT_TX_CONFIRM_TARGET = 6; |
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//! -walletrbf default |
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static const bool DEFAULT_WALLET_RBF = false; |
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static const bool DEFAULT_WALLETBROADCAST = true; |
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static const bool DEFAULT_DISABLE_WALLET = false; |
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extern const char * DEFAULT_WALLET_DAT; |
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static const int64_t TIMESTAMP_MIN = 0; |
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class CBlockIndex; |
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class CCoinControl; |
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class COutput; |
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class CReserveKey; |
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class CScript; |
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class CScheduler; |
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class CTxMemPool; |
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class CBlockPolicyEstimator; |
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class CWalletTx; |
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struct FeeCalculation; |
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enum class FeeEstimateMode; |
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|
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/** (client) version numbers for particular wallet features */ |
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enum WalletFeature |
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{ |
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FEATURE_BASE = 10500, // the earliest version new wallets supports (only useful for getwalletinfo's clientversion output) |
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FEATURE_WALLETCRYPT = 40000, // wallet encryption |
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FEATURE_COMPRPUBKEY = 60000, // compressed public keys |
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FEATURE_HD = 130000, // Hierarchical key derivation after BIP32 (HD Wallet) |
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FEATURE_HD_SPLIT = 139900, // Wallet with HD chain split (change outputs will use m/0'/1'/k) |
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FEATURE_NO_DEFAULT_KEY = 159900, // Wallet without a default key written |
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FEATURE_LATEST = FEATURE_COMPRPUBKEY // HD is optional, use FEATURE_COMPRPUBKEY as latest version |
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}; |
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enum OutputType : int |
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{ |
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OUTPUT_TYPE_NONE, |
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OUTPUT_TYPE_LEGACY, |
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OUTPUT_TYPE_P2SH_SEGWIT, |
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OUTPUT_TYPE_BECH32, |
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OUTPUT_TYPE_DEFAULT = OUTPUT_TYPE_P2SH_SEGWIT |
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}; |
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extern OutputType g_address_type; |
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extern OutputType g_change_type; |
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/** A key pool entry */ |
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class CKeyPool |
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{ |
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public: |
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int64_t nTime; |
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CPubKey vchPubKey; |
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bool fInternal; // for change outputs |
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CKeyPool(); |
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CKeyPool(const CPubKey& vchPubKeyIn, bool internalIn); |
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ADD_SERIALIZE_METHODS; |
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template <typename Stream, typename Operation> |
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inline void SerializationOp(Stream& s, Operation ser_action) { |
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int nVersion = s.GetVersion(); |
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if (!(s.GetType() & SER_GETHASH)) |
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READWRITE(nVersion); |
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READWRITE(nTime); |
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READWRITE(vchPubKey); |
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if (ser_action.ForRead()) { |
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try { |
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READWRITE(fInternal); |
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} |
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catch (std::ios_base::failure&) { |
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/* flag as external address if we can't read the internal boolean |
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(this will be the case for any wallet before the HD chain split version) */ |
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fInternal = false; |
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} |
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} |
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else { |
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READWRITE(fInternal); |
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} |
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} |
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}; |
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/** Address book data */ |
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class CAddressBookData |
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{ |
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public: |
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std::string name; |
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std::string purpose; |
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CAddressBookData() : purpose("unknown") {} |
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typedef std::map<std::string, std::string> StringMap; |
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StringMap destdata; |
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}; |
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struct CRecipient |
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{ |
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CScript scriptPubKey; |
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CAmount nAmount; |
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bool fSubtractFeeFromAmount; |
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}; |
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typedef std::map<std::string, std::string> mapValue_t; |
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static inline void ReadOrderPos(int64_t& nOrderPos, mapValue_t& mapValue) |
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{ |
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if (!mapValue.count("n")) |
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{ |
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nOrderPos = -1; // TODO: calculate elsewhere |
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return; |
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} |
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nOrderPos = atoi64(mapValue["n"].c_str()); |
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} |
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static inline void WriteOrderPos(const int64_t& nOrderPos, mapValue_t& mapValue) |
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{ |
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if (nOrderPos == -1) |
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return; |
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mapValue["n"] = i64tostr(nOrderPos); |
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} |
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struct COutputEntry |
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{ |
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CTxDestination destination; |
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CAmount amount; |
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int vout; |
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}; |
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/** A transaction with a merkle branch linking it to the block chain. */ |
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class CMerkleTx |
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{ |
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private: |
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/** Constant used in hashBlock to indicate tx has been abandoned */ |
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static const uint256 ABANDON_HASH; |
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public: |
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CTransactionRef tx; |
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uint256 hashBlock; |
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/* An nIndex == -1 means that hashBlock (in nonzero) refers to the earliest |
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* block in the chain we know this or any in-wallet dependency conflicts |
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* with. Older clients interpret nIndex == -1 as unconfirmed for backward |
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* compatibility. |
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*/ |
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int nIndex; |
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CMerkleTx() |
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{ |
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SetTx(MakeTransactionRef()); |
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Init(); |
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} |
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explicit CMerkleTx(CTransactionRef arg) |
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{ |
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SetTx(std::move(arg)); |
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Init(); |
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} |
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void Init() |
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{ |
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hashBlock = uint256(); |
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nIndex = -1; |
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} |
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void SetTx(CTransactionRef arg) |
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{ |
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tx = std::move(arg); |
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} |
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ADD_SERIALIZE_METHODS; |
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template <typename Stream, typename Operation> |
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inline void SerializationOp(Stream& s, Operation ser_action) { |
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std::vector<uint256> vMerkleBranch; // For compatibility with older versions. |
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READWRITE(tx); |
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READWRITE(hashBlock); |
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READWRITE(vMerkleBranch); |
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READWRITE(nIndex); |
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} |
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void SetMerkleBranch(const CBlockIndex* pIndex, int posInBlock); |
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/** |
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* Return depth of transaction in blockchain: |
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* <0 : conflicts with a transaction this deep in the blockchain |
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* 0 : in memory pool, waiting to be included in a block |
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* >=1 : this many blocks deep in the main chain |
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*/ |
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int GetDepthInMainChain(const CBlockIndex* &pindexRet) const; |
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int GetDepthInMainChain() const { const CBlockIndex *pindexRet; return GetDepthInMainChain(pindexRet); } |
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bool IsInMainChain() const { const CBlockIndex *pindexRet; return GetDepthInMainChain(pindexRet) > 0; } |
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int GetBlocksToMaturity() const; |
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bool hashUnset() const { return (hashBlock.IsNull() || hashBlock == ABANDON_HASH); } |
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bool isAbandoned() const { return (hashBlock == ABANDON_HASH); } |
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void setAbandoned() { hashBlock = ABANDON_HASH; } |
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const uint256& GetHash() const { return tx->GetHash(); } |
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bool IsCoinBase() const { return tx->IsCoinBase(); } |
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}; |
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/** |
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* A transaction with a bunch of additional info that only the owner cares about. |
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* It includes any unrecorded transactions needed to link it back to the block chain. |
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*/ |
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class CWalletTx : public CMerkleTx |
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{ |
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private: |
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const CWallet* pwallet; |
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public: |
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/** |
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* Key/value map with information about the transaction. |
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* |
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* The following keys can be read and written through the map and are |
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* serialized in the wallet database: |
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* |
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* "comment", "to" - comment strings provided to sendtoaddress, |
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* sendfrom, sendmany wallet RPCs |
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* "replaces_txid" - txid (as HexStr) of transaction replaced by |
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* bumpfee on transaction created by bumpfee |
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* "replaced_by_txid" - txid (as HexStr) of transaction created by |
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* bumpfee on transaction replaced by bumpfee |
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* "from", "message" - obsolete fields that could be set in UI prior to |
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* 2011 (removed in commit 4d9b223) |
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* |
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* The following keys are serialized in the wallet database, but shouldn't |
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* be read or written through the map (they will be temporarily added and |
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* removed from the map during serialization): |
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* |
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* "fromaccount" - serialized strFromAccount value |
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* "n" - serialized nOrderPos value |
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* "timesmart" - serialized nTimeSmart value |
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* "spent" - serialized vfSpent value that existed prior to |
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* 2014 (removed in commit 93a18a3) |
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*/ |
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mapValue_t mapValue; |
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std::vector<std::pair<std::string, std::string> > vOrderForm; |
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unsigned int fTimeReceivedIsTxTime; |
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unsigned int nTimeReceived; //!< time received by this node |
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/** |
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* Stable timestamp that never changes, and reflects the order a transaction |
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* was added to the wallet. Timestamp is based on the block time for a |
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* transaction added as part of a block, or else the time when the |
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* transaction was received if it wasn't part of a block, with the timestamp |
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* adjusted in both cases so timestamp order matches the order transactions |
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* were added to the wallet. More details can be found in |
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* CWallet::ComputeTimeSmart(). |
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*/ |
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unsigned int nTimeSmart; |
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/** |
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* From me flag is set to 1 for transactions that were created by the wallet |
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* on this bitcoin node, and set to 0 for transactions that were created |
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* externally and came in through the network or sendrawtransaction RPC. |
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*/ |
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char fFromMe; |
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std::string strFromAccount; |
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int64_t nOrderPos; //!< position in ordered transaction list |
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// memory only |
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mutable bool fDebitCached; |
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mutable bool fCreditCached; |
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mutable bool fImmatureCreditCached; |
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mutable bool fAvailableCreditCached; |
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mutable bool fWatchDebitCached; |
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mutable bool fWatchCreditCached; |
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mutable bool fImmatureWatchCreditCached; |
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mutable bool fAvailableWatchCreditCached; |
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mutable bool fChangeCached; |
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mutable bool fInMempool; |
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mutable CAmount nDebitCached; |
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mutable CAmount nCreditCached; |
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mutable CAmount nImmatureCreditCached; |
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mutable CAmount nAvailableCreditCached; |
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mutable CAmount nWatchDebitCached; |
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mutable CAmount nWatchCreditCached; |
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mutable CAmount nImmatureWatchCreditCached; |
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mutable CAmount nAvailableWatchCreditCached; |
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mutable CAmount nChangeCached; |
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CWalletTx() |
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{ |
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Init(nullptr); |
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} |
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CWalletTx(const CWallet* pwalletIn, CTransactionRef arg) : CMerkleTx(std::move(arg)) |
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{ |
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Init(pwalletIn); |
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} |
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void Init(const CWallet* pwalletIn) |
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{ |
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pwallet = pwalletIn; |
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mapValue.clear(); |
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vOrderForm.clear(); |
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fTimeReceivedIsTxTime = false; |
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nTimeReceived = 0; |
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nTimeSmart = 0; |
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fFromMe = false; |
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strFromAccount.clear(); |
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fDebitCached = false; |
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fCreditCached = false; |
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fImmatureCreditCached = false; |
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fAvailableCreditCached = false; |
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fWatchDebitCached = false; |
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fWatchCreditCached = false; |
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fImmatureWatchCreditCached = false; |
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fAvailableWatchCreditCached = false; |
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fChangeCached = false; |
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fInMempool = false; |
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nDebitCached = 0; |
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nCreditCached = 0; |
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nImmatureCreditCached = 0; |
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nAvailableCreditCached = 0; |
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nWatchDebitCached = 0; |
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nWatchCreditCached = 0; |
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nAvailableWatchCreditCached = 0; |
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nImmatureWatchCreditCached = 0; |
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nChangeCached = 0; |
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nOrderPos = -1; |
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} |
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ADD_SERIALIZE_METHODS; |
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template <typename Stream, typename Operation> |
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inline void SerializationOp(Stream& s, Operation ser_action) { |
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if (ser_action.ForRead()) |
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Init(nullptr); |
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char fSpent = false; |
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if (!ser_action.ForRead()) |
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{ |
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mapValue["fromaccount"] = strFromAccount; |
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WriteOrderPos(nOrderPos, mapValue); |
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if (nTimeSmart) |
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mapValue["timesmart"] = strprintf("%u", nTimeSmart); |
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} |
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READWRITE(*(CMerkleTx*)this); |
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std::vector<CMerkleTx> vUnused; //!< Used to be vtxPrev |
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READWRITE(vUnused); |
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READWRITE(mapValue); |
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READWRITE(vOrderForm); |
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READWRITE(fTimeReceivedIsTxTime); |
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READWRITE(nTimeReceived); |
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READWRITE(fFromMe); |
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READWRITE(fSpent); |
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if (ser_action.ForRead()) |
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{ |
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strFromAccount = mapValue["fromaccount"]; |
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ReadOrderPos(nOrderPos, mapValue); |
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nTimeSmart = mapValue.count("timesmart") ? (unsigned int)atoi64(mapValue["timesmart"]) : 0; |
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} |
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mapValue.erase("fromaccount"); |
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mapValue.erase("spent"); |
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mapValue.erase("n"); |
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mapValue.erase("timesmart"); |
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} |
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//! make sure balances are recalculated |
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void MarkDirty() |
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{ |
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fCreditCached = false; |
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fAvailableCreditCached = false; |
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fImmatureCreditCached = false; |
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fWatchDebitCached = false; |
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fWatchCreditCached = false; |
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fAvailableWatchCreditCached = false; |
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fImmatureWatchCreditCached = false; |
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fDebitCached = false; |
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fChangeCached = false; |
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} |
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void BindWallet(CWallet *pwalletIn) |
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{ |
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pwallet = pwalletIn; |
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MarkDirty(); |
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} |
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//! filter decides which addresses will count towards the debit |
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CAmount GetDebit(const isminefilter& filter) const; |
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CAmount GetCredit(const isminefilter& filter) const; |
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CAmount GetImmatureCredit(bool fUseCache=true) const; |
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CAmount GetAvailableCredit(bool fUseCache=true) const; |
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CAmount GetImmatureWatchOnlyCredit(const bool fUseCache=true) const; |
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CAmount GetAvailableWatchOnlyCredit(const bool fUseCache=true) const; |
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CAmount GetChange() const; |
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void GetAmounts(std::list<COutputEntry>& listReceived, |
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std::list<COutputEntry>& listSent, CAmount& nFee, std::string& strSentAccount, const isminefilter& filter) const; |
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bool IsFromMe(const isminefilter& filter) const |
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{ |
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return (GetDebit(filter) > 0); |
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} |
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// True if only scriptSigs are different |
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bool IsEquivalentTo(const CWalletTx& tx) const; |
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bool InMempool() const; |
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bool IsTrusted() const; |
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int64_t GetTxTime() const; |
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int GetRequestCount() const; |
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// RelayWalletTransaction may only be called if fBroadcastTransactions! |
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bool RelayWalletTransaction(CConnman* connman); |
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/** Pass this transaction to the mempool. Fails if absolute fee exceeds absurd fee. */ |
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bool AcceptToMemoryPool(const CAmount& nAbsurdFee, CValidationState& state); |
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std::set<uint256> GetConflicts() const; |
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}; |
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class CInputCoin { |
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public: |
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CInputCoin(const CWalletTx* walletTx, unsigned int i) |
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{ |
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if (!walletTx) |
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throw std::invalid_argument("walletTx should not be null"); |
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if (i >= walletTx->tx->vout.size()) |
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throw std::out_of_range("The output index is out of range"); |
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outpoint = COutPoint(walletTx->GetHash(), i); |
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txout = walletTx->tx->vout[i]; |
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} |
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COutPoint outpoint; |
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CTxOut txout; |
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bool operator<(const CInputCoin& rhs) const { |
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return outpoint < rhs.outpoint; |
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} |
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bool operator!=(const CInputCoin& rhs) const { |
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return outpoint != rhs.outpoint; |
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} |
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bool operator==(const CInputCoin& rhs) const { |
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return outpoint == rhs.outpoint; |
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} |
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}; |
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|
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class COutput |
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{ |
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public: |
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const CWalletTx *tx; |
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int i; |
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int nDepth; |
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|
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/** Whether we have the private keys to spend this output */ |
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bool fSpendable; |
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|
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/** Whether we know how to spend this output, ignoring the lack of keys */ |
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bool fSolvable; |
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|
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/** |
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* Whether this output is considered safe to spend. Unconfirmed transactions |
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* from outside keys and unconfirmed replacement transactions are considered |
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* unsafe and will not be used to fund new spending transactions. |
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*/ |
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bool fSafe; |
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|
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COutput(const CWalletTx *txIn, int iIn, int nDepthIn, bool fSpendableIn, bool fSolvableIn, bool fSafeIn) |
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{ |
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tx = txIn; i = iIn; nDepth = nDepthIn; fSpendable = fSpendableIn; fSolvable = fSolvableIn; fSafe = fSafeIn; |
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} |
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std::string ToString() const; |
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}; |
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/** Private key that includes an expiration date in case it never gets used. */ |
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class CWalletKey |
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{ |
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public: |
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CPrivKey vchPrivKey; |
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int64_t nTimeCreated; |
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int64_t nTimeExpires; |
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std::string strComment; |
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//! todo: add something to note what created it (user, getnewaddress, change) |
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//! maybe should have a map<string, string> property map |
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|
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explicit CWalletKey(int64_t nExpires=0); |
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ADD_SERIALIZE_METHODS; |
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|
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template <typename Stream, typename Operation> |
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inline void SerializationOp(Stream& s, Operation ser_action) { |
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int nVersion = s.GetVersion(); |
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if (!(s.GetType() & SER_GETHASH)) |
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READWRITE(nVersion); |
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READWRITE(vchPrivKey); |
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READWRITE(nTimeCreated); |
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READWRITE(nTimeExpires); |
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READWRITE(LIMITED_STRING(strComment, 65536)); |
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} |
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}; |
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|
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/** |
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* Internal transfers. |
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* Database key is acentry<account><counter>. |
|
*/ |
|
class CAccountingEntry |
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{ |
|
public: |
|
std::string strAccount; |
|
CAmount nCreditDebit; |
|
int64_t nTime; |
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std::string strOtherAccount; |
|
std::string strComment; |
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mapValue_t mapValue; |
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int64_t nOrderPos; //!< position in ordered transaction list |
|
uint64_t nEntryNo; |
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|
|
CAccountingEntry() |
|
{ |
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SetNull(); |
|
} |
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|
|
void SetNull() |
|
{ |
|
nCreditDebit = 0; |
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nTime = 0; |
|
strAccount.clear(); |
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strOtherAccount.clear(); |
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strComment.clear(); |
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nOrderPos = -1; |
|
nEntryNo = 0; |
|
} |
|
|
|
ADD_SERIALIZE_METHODS; |
|
|
|
template <typename Stream, typename Operation> |
|
inline void SerializationOp(Stream& s, Operation ser_action) { |
|
int nVersion = s.GetVersion(); |
|
if (!(s.GetType() & SER_GETHASH)) |
|
READWRITE(nVersion); |
|
//! Note: strAccount is serialized as part of the key, not here. |
|
READWRITE(nCreditDebit); |
|
READWRITE(nTime); |
|
READWRITE(LIMITED_STRING(strOtherAccount, 65536)); |
|
|
|
if (!ser_action.ForRead()) |
|
{ |
|
WriteOrderPos(nOrderPos, mapValue); |
|
|
|
if (!(mapValue.empty() && _ssExtra.empty())) |
|
{ |
|
CDataStream ss(s.GetType(), s.GetVersion()); |
|
ss.insert(ss.begin(), '\0'); |
|
ss << mapValue; |
|
ss.insert(ss.end(), _ssExtra.begin(), _ssExtra.end()); |
|
strComment.append(ss.str()); |
|
} |
|
} |
|
|
|
READWRITE(LIMITED_STRING(strComment, 65536)); |
|
|
|
size_t nSepPos = strComment.find("\0", 0, 1); |
|
if (ser_action.ForRead()) |
|
{ |
|
mapValue.clear(); |
|
if (std::string::npos != nSepPos) |
|
{ |
|
CDataStream ss(std::vector<char>(strComment.begin() + nSepPos + 1, strComment.end()), s.GetType(), s.GetVersion()); |
|
ss >> mapValue; |
|
_ssExtra = std::vector<char>(ss.begin(), ss.end()); |
|
} |
|
ReadOrderPos(nOrderPos, mapValue); |
|
} |
|
if (std::string::npos != nSepPos) |
|
strComment.erase(nSepPos); |
|
|
|
mapValue.erase("n"); |
|
} |
|
|
|
private: |
|
std::vector<char> _ssExtra; |
|
}; |
|
|
|
|
|
/** |
|
* A CWallet is an extension of a keystore, which also maintains a set of transactions and balances, |
|
* and provides the ability to create new transactions. |
|
*/ |
|
class CWallet final : public CCryptoKeyStore, public CValidationInterface |
|
{ |
|
private: |
|
static std::atomic<bool> fFlushScheduled; |
|
std::atomic<bool> fAbortRescan; |
|
std::atomic<bool> fScanningWallet; |
|
|
|
/** |
|
* Select a set of coins such that nValueRet >= nTargetValue and at least |
|
* all coins from coinControl are selected; Never select unconfirmed coins |
|
* if they are not ours |
|
*/ |
|
bool SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAmount& nTargetValue, std::set<CInputCoin>& setCoinsRet, CAmount& nValueRet, const CCoinControl *coinControl = nullptr) const; |
|
|
|
CWalletDB *pwalletdbEncryption; |
|
|
|
//! the current wallet version: clients below this version are not able to load the wallet |
|
int nWalletVersion; |
|
|
|
//! the maximum wallet format version: memory-only variable that specifies to what version this wallet may be upgraded |
|
int nWalletMaxVersion; |
|
|
|
int64_t nNextResend; |
|
int64_t nLastResend; |
|
bool fBroadcastTransactions; |
|
|
|
/** |
|
* Used to keep track of spent outpoints, and |
|
* detect and report conflicts (double-spends or |
|
* mutated transactions where the mutant gets mined). |
|
*/ |
|
typedef std::multimap<COutPoint, uint256> TxSpends; |
|
TxSpends mapTxSpends; |
|
void AddToSpends(const COutPoint& outpoint, const uint256& wtxid); |
|
void AddToSpends(const uint256& wtxid); |
|
|
|
/* Mark a transaction (and its in-wallet descendants) as conflicting with a particular block. */ |
|
void MarkConflicted(const uint256& hashBlock, const uint256& hashTx); |
|
|
|
void SyncMetaData(std::pair<TxSpends::iterator, TxSpends::iterator>); |
|
|
|
/* Used by TransactionAddedToMemorypool/BlockConnected/Disconnected. |
|
* Should be called with pindexBlock and posInBlock if this is for a transaction that is included in a block. */ |
|
void SyncTransaction(const CTransactionRef& tx, const CBlockIndex *pindex = nullptr, int posInBlock = 0); |
|
|
|
/* the HD chain data model (external chain counters) */ |
|
CHDChain hdChain; |
|
|
|
/* HD derive new child key (on internal or external chain) */ |
|
void DeriveNewChildKey(CWalletDB &walletdb, CKeyMetadata& metadata, CKey& secret, bool internal = false); |
|
|
|
std::set<int64_t> setInternalKeyPool; |
|
std::set<int64_t> setExternalKeyPool; |
|
int64_t m_max_keypool_index; |
|
std::map<CKeyID, int64_t> m_pool_key_to_index; |
|
|
|
int64_t nTimeFirstKey; |
|
|
|
/** |
|
* Private version of AddWatchOnly method which does not accept a |
|
* timestamp, and which will reset the wallet's nTimeFirstKey value to 1 if |
|
* the watch key did not previously have a timestamp associated with it. |
|
* Because this is an inherited virtual method, it is accessible despite |
|
* being marked private, but it is marked private anyway to encourage use |
|
* of the other AddWatchOnly which accepts a timestamp and sets |
|
* nTimeFirstKey more intelligently for more efficient rescans. |
|
*/ |
|
bool AddWatchOnly(const CScript& dest) override; |
|
|
|
std::unique_ptr<CWalletDBWrapper> dbw; |
|
|
|
/** |
|
* The following is used to keep track of how far behind the wallet is |
|
* from the chain sync, and to allow clients to block on us being caught up. |
|
* |
|
* Note that this is *not* how far we've processed, we may need some rescan |
|
* to have seen all transactions in the chain, but is only used to track |
|
* live BlockConnected callbacks. |
|
* |
|
* Protected by cs_main (see BlockUntilSyncedToCurrentChain) |
|
*/ |
|
const CBlockIndex* m_last_block_processed; |
|
|
|
public: |
|
/* |
|
* Main wallet lock. |
|
* This lock protects all the fields added by CWallet. |
|
*/ |
|
mutable CCriticalSection cs_wallet; |
|
|
|
/** Get database handle used by this wallet. Ideally this function would |
|
* not be necessary. |
|
*/ |
|
CWalletDBWrapper& GetDBHandle() |
|
{ |
|
return *dbw; |
|
} |
|
|
|
/** Get a name for this wallet for logging/debugging purposes. |
|
*/ |
|
std::string GetName() const |
|
{ |
|
if (dbw) { |
|
return dbw->GetName(); |
|
} else { |
|
return "dummy"; |
|
} |
|
} |
|
|
|
void LoadKeyPool(int64_t nIndex, const CKeyPool &keypool); |
|
|
|
// Map from Key ID to key metadata. |
|
std::map<CKeyID, CKeyMetadata> mapKeyMetadata; |
|
|
|
// Map from Script ID to key metadata (for watch-only keys). |
|
std::map<CScriptID, CKeyMetadata> m_script_metadata; |
|
|
|
typedef std::map<unsigned int, CMasterKey> MasterKeyMap; |
|
MasterKeyMap mapMasterKeys; |
|
unsigned int nMasterKeyMaxID; |
|
|
|
// Create wallet with dummy database handle |
|
CWallet(): dbw(new CWalletDBWrapper()) |
|
{ |
|
SetNull(); |
|
} |
|
|
|
// Create wallet with passed-in database handle |
|
explicit CWallet(std::unique_ptr<CWalletDBWrapper> dbw_in) : dbw(std::move(dbw_in)) |
|
{ |
|
SetNull(); |
|
} |
|
|
|
~CWallet() |
|
{ |
|
delete pwalletdbEncryption; |
|
pwalletdbEncryption = nullptr; |
|
} |
|
|
|
void SetNull() |
|
{ |
|
nWalletVersion = FEATURE_BASE; |
|
nWalletMaxVersion = FEATURE_BASE; |
|
nMasterKeyMaxID = 0; |
|
pwalletdbEncryption = nullptr; |
|
nOrderPosNext = 0; |
|
nAccountingEntryNumber = 0; |
|
nNextResend = 0; |
|
nLastResend = 0; |
|
m_max_keypool_index = 0; |
|
nTimeFirstKey = 0; |
|
fBroadcastTransactions = false; |
|
nRelockTime = 0; |
|
fAbortRescan = false; |
|
fScanningWallet = false; |
|
} |
|
|
|
std::map<uint256, CWalletTx> mapWallet; |
|
std::list<CAccountingEntry> laccentries; |
|
|
|
typedef std::pair<CWalletTx*, CAccountingEntry*> TxPair; |
|
typedef std::multimap<int64_t, TxPair > TxItems; |
|
TxItems wtxOrdered; |
|
|
|
int64_t nOrderPosNext; |
|
uint64_t nAccountingEntryNumber; |
|
std::map<uint256, int> mapRequestCount; |
|
|
|
std::map<CTxDestination, CAddressBookData> mapAddressBook; |
|
|
|
std::set<COutPoint> setLockedCoins; |
|
|
|
const CWalletTx* GetWalletTx(const uint256& hash) const; |
|
|
|
//! check whether we are allowed to upgrade (or already support) to the named feature |
|
bool CanSupportFeature(enum WalletFeature wf) const { AssertLockHeld(cs_wallet); return nWalletMaxVersion >= wf; } |
|
|
|
/** |
|
* populate vCoins with vector of available COutputs. |
|
*/ |
|
void AvailableCoins(std::vector<COutput>& vCoins, bool fOnlySafe=true, const CCoinControl *coinControl = nullptr, const CAmount& nMinimumAmount = 1, const CAmount& nMaximumAmount = MAX_MONEY, const CAmount& nMinimumSumAmount = MAX_MONEY, const uint64_t nMaximumCount = 0, const int nMinDepth = 0, const int nMaxDepth = 9999999) const; |
|
|
|
/** |
|
* Return list of available coins and locked coins grouped by non-change output address. |
|
*/ |
|
std::map<CTxDestination, std::vector<COutput>> ListCoins() const; |
|
|
|
/** |
|
* Find non-change parent output. |
|
*/ |
|
const CTxOut& FindNonChangeParentOutput(const CTransaction& tx, int output) const; |
|
|
|
/** |
|
* Shuffle and select coins until nTargetValue is reached while avoiding |
|
* small change; This method is stochastic for some inputs and upon |
|
* completion the coin set and corresponding actual target value is |
|
* assembled |
|
*/ |
|
bool SelectCoinsMinConf(const CAmount& nTargetValue, int nConfMine, int nConfTheirs, uint64_t nMaxAncestors, std::vector<COutput> vCoins, std::set<CInputCoin>& setCoinsRet, CAmount& nValueRet) const; |
|
|
|
bool IsSpent(const uint256& hash, unsigned int n) const; |
|
|
|
bool IsLockedCoin(uint256 hash, unsigned int n) const; |
|
void LockCoin(const COutPoint& output); |
|
void UnlockCoin(const COutPoint& output); |
|
void UnlockAllCoins(); |
|
void ListLockedCoins(std::vector<COutPoint>& vOutpts) const; |
|
|
|
/* |
|
* Rescan abort properties |
|
*/ |
|
void AbortRescan() { fAbortRescan = true; } |
|
bool IsAbortingRescan() { return fAbortRescan; } |
|
bool IsScanning() { return fScanningWallet; } |
|
|
|
/** |
|
* keystore implementation |
|
* Generate a new key |
|
*/ |
|
CPubKey GenerateNewKey(CWalletDB& walletdb, bool internal = false); |
|
//! Adds a key to the store, and saves it to disk. |
|
bool AddKeyPubKey(const CKey& key, const CPubKey &pubkey) override; |
|
bool AddKeyPubKeyWithDB(CWalletDB &walletdb,const CKey& key, const CPubKey &pubkey); |
|
//! Adds a key to the store, without saving it to disk (used by LoadWallet) |
|
bool LoadKey(const CKey& key, const CPubKey &pubkey) { return CCryptoKeyStore::AddKeyPubKey(key, pubkey); } |
|
//! Load metadata (used by LoadWallet) |
|
bool LoadKeyMetadata(const CKeyID& keyID, const CKeyMetadata &metadata); |
|
bool LoadScriptMetadata(const CScriptID& script_id, const CKeyMetadata &metadata); |
|
|
|
bool LoadMinVersion(int nVersion) { AssertLockHeld(cs_wallet); nWalletVersion = nVersion; nWalletMaxVersion = std::max(nWalletMaxVersion, nVersion); return true; } |
|
void UpdateTimeFirstKey(int64_t nCreateTime); |
|
|
|
//! Adds an encrypted key to the store, and saves it to disk. |
|
bool AddCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret) override; |
|
//! Adds an encrypted key to the store, without saving it to disk (used by LoadWallet) |
|
bool LoadCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret); |
|
bool AddCScript(const CScript& redeemScript) override; |
|
bool LoadCScript(const CScript& redeemScript); |
|
|
|
//! Adds a destination data tuple to the store, and saves it to disk |
|
bool AddDestData(const CTxDestination &dest, const std::string &key, const std::string &value); |
|
//! Erases a destination data tuple in the store and on disk |
|
bool EraseDestData(const CTxDestination &dest, const std::string &key); |
|
//! Adds a destination data tuple to the store, without saving it to disk |
|
bool LoadDestData(const CTxDestination &dest, const std::string &key, const std::string &value); |
|
//! Look up a destination data tuple in the store, return true if found false otherwise |
|
bool GetDestData(const CTxDestination &dest, const std::string &key, std::string *value) const; |
|
//! Get all destination values matching a prefix. |
|
std::vector<std::string> GetDestValues(const std::string& prefix) const; |
|
|
|
//! Adds a watch-only address to the store, and saves it to disk. |
|
bool AddWatchOnly(const CScript& dest, int64_t nCreateTime); |
|
bool RemoveWatchOnly(const CScript &dest) override; |
|
//! Adds a watch-only address to the store, without saving it to disk (used by LoadWallet) |
|
bool LoadWatchOnly(const CScript &dest); |
|
|
|
//! Holds a timestamp at which point the wallet is scheduled (externally) to be relocked. Caller must arrange for actual relocking to occur via Lock(). |
|
int64_t nRelockTime; |
|
|
|
bool Unlock(const SecureString& strWalletPassphrase); |
|
bool ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase); |
|
bool EncryptWallet(const SecureString& strWalletPassphrase); |
|
|
|
void GetKeyBirthTimes(std::map<CTxDestination, int64_t> &mapKeyBirth) const; |
|
unsigned int ComputeTimeSmart(const CWalletTx& wtx) const; |
|
|
|
/** |
|
* Increment the next transaction order id |
|
* @return next transaction order id |
|
*/ |
|
int64_t IncOrderPosNext(CWalletDB *pwalletdb = nullptr); |
|
DBErrors ReorderTransactions(); |
|
bool AccountMove(std::string strFrom, std::string strTo, CAmount nAmount, std::string strComment = ""); |
|
bool GetAccountDestination(CTxDestination &dest, std::string strAccount, bool bForceNew = false); |
|
|
|
void MarkDirty(); |
|
bool AddToWallet(const CWalletTx& wtxIn, bool fFlushOnClose=true); |
|
bool LoadToWallet(const CWalletTx& wtxIn); |
|
void TransactionAddedToMempool(const CTransactionRef& tx) override; |
|
void BlockConnected(const std::shared_ptr<const CBlock>& pblock, const CBlockIndex *pindex, const std::vector<CTransactionRef>& vtxConflicted) override; |
|
void BlockDisconnected(const std::shared_ptr<const CBlock>& pblock) override; |
|
bool AddToWalletIfInvolvingMe(const CTransactionRef& tx, const CBlockIndex* pIndex, int posInBlock, bool fUpdate); |
|
int64_t RescanFromTime(int64_t startTime, bool update); |
|
CBlockIndex* ScanForWalletTransactions(CBlockIndex* pindexStart, CBlockIndex* pindexStop, bool fUpdate = false); |
|
void TransactionRemovedFromMempool(const CTransactionRef &ptx) override; |
|
void ReacceptWalletTransactions(); |
|
void ResendWalletTransactions(int64_t nBestBlockTime, CConnman* connman) override; |
|
// ResendWalletTransactionsBefore may only be called if fBroadcastTransactions! |
|
std::vector<uint256> ResendWalletTransactionsBefore(int64_t nTime, CConnman* connman); |
|
CAmount GetBalance() const; |
|
CAmount GetUnconfirmedBalance() const; |
|
CAmount GetImmatureBalance() const; |
|
CAmount GetWatchOnlyBalance() const; |
|
CAmount GetUnconfirmedWatchOnlyBalance() const; |
|
CAmount GetImmatureWatchOnlyBalance() const; |
|
CAmount GetLegacyBalance(const isminefilter& filter, int minDepth, const std::string* account) const; |
|
CAmount GetAvailableBalance(const CCoinControl* coinControl = nullptr) const; |
|
|
|
/** |
|
* Insert additional inputs into the transaction by |
|
* calling CreateTransaction(); |
|
*/ |
|
bool FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nChangePosInOut, std::string& strFailReason, bool lockUnspents, const std::set<int>& setSubtractFeeFromOutputs, CCoinControl); |
|
bool SignTransaction(CMutableTransaction& tx); |
|
|
|
/** |
|
* Create a new transaction paying the recipients with a set of coins |
|
* selected by SelectCoins(); Also create the change output, when needed |
|
* @note passing nChangePosInOut as -1 will result in setting a random position |
|
*/ |
|
bool CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, CAmount& nFeeRet, int& nChangePosInOut, |
|
std::string& strFailReason, const CCoinControl& coin_control, bool sign = true); |
|
bool CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey, CConnman* connman, CValidationState& state); |
|
|
|
void ListAccountCreditDebit(const std::string& strAccount, std::list<CAccountingEntry>& entries); |
|
bool AddAccountingEntry(const CAccountingEntry&); |
|
bool AddAccountingEntry(const CAccountingEntry&, CWalletDB *pwalletdb); |
|
template <typename ContainerType> |
|
bool DummySignTx(CMutableTransaction &txNew, const ContainerType &coins) const; |
|
|
|
static CFeeRate minTxFee; |
|
static CFeeRate fallbackFee; |
|
static CFeeRate m_discard_rate; |
|
|
|
bool NewKeyPool(); |
|
size_t KeypoolCountExternalKeys(); |
|
bool TopUpKeyPool(unsigned int kpSize = 0); |
|
void ReserveKeyFromKeyPool(int64_t& nIndex, CKeyPool& keypool, bool fRequestedInternal); |
|
void KeepKey(int64_t nIndex); |
|
void ReturnKey(int64_t nIndex, bool fInternal, const CPubKey& pubkey); |
|
bool GetKeyFromPool(CPubKey &key, bool internal = false); |
|
int64_t GetOldestKeyPoolTime(); |
|
/** |
|
* Marks all keys in the keypool up to and including reserve_key as used. |
|
*/ |
|
void MarkReserveKeysAsUsed(int64_t keypool_id); |
|
const std::map<CKeyID, int64_t>& GetAllReserveKeys() const { return m_pool_key_to_index; } |
|
|
|
std::set< std::set<CTxDestination> > GetAddressGroupings(); |
|
std::map<CTxDestination, CAmount> GetAddressBalances(); |
|
|
|
std::set<CTxDestination> GetAccountAddresses(const std::string& strAccount) const; |
|
|
|
isminetype IsMine(const CTxIn& txin) const; |
|
/** |
|
* Returns amount of debit if the input matches the |
|
* filter, otherwise returns 0 |
|
*/ |
|
CAmount GetDebit(const CTxIn& txin, const isminefilter& filter) const; |
|
isminetype IsMine(const CTxOut& txout) const; |
|
CAmount GetCredit(const CTxOut& txout, const isminefilter& filter) const; |
|
bool IsChange(const CTxOut& txout) const; |
|
CAmount GetChange(const CTxOut& txout) const; |
|
bool IsMine(const CTransaction& tx) const; |
|
/** should probably be renamed to IsRelevantToMe */ |
|
bool IsFromMe(const CTransaction& tx) const; |
|
CAmount GetDebit(const CTransaction& tx, const isminefilter& filter) const; |
|
/** Returns whether all of the inputs match the filter */ |
|
bool IsAllFromMe(const CTransaction& tx, const isminefilter& filter) const; |
|
CAmount GetCredit(const CTransaction& tx, const isminefilter& filter) const; |
|
CAmount GetChange(const CTransaction& tx) const; |
|
void SetBestChain(const CBlockLocator& loc) override; |
|
|
|
DBErrors LoadWallet(bool& fFirstRunRet); |
|
DBErrors ZapWalletTx(std::vector<CWalletTx>& vWtx); |
|
DBErrors ZapSelectTx(std::vector<uint256>& vHashIn, std::vector<uint256>& vHashOut); |
|
|
|
bool SetAddressBook(const CTxDestination& address, const std::string& strName, const std::string& purpose); |
|
|
|
bool DelAddressBook(const CTxDestination& address); |
|
|
|
const std::string& GetAccountName(const CScript& scriptPubKey) const; |
|
|
|
void Inventory(const uint256 &hash) override |
|
{ |
|
{ |
|
LOCK(cs_wallet); |
|
std::map<uint256, int>::iterator mi = mapRequestCount.find(hash); |
|
if (mi != mapRequestCount.end()) |
|
(*mi).second++; |
|
} |
|
} |
|
|
|
void GetScriptForMining(std::shared_ptr<CReserveScript> &script); |
|
|
|
unsigned int GetKeyPoolSize() |
|
{ |
|
AssertLockHeld(cs_wallet); // set{Ex,In}ternalKeyPool |
|
return setInternalKeyPool.size() + setExternalKeyPool.size(); |
|
} |
|
|
|
//! signify that a particular wallet feature is now used. this may change nWalletVersion and nWalletMaxVersion if those are lower |
|
bool SetMinVersion(enum WalletFeature, CWalletDB* pwalletdbIn = nullptr, bool fExplicit = false); |
|
|
|
//! change which version we're allowed to upgrade to (note that this does not immediately imply upgrading to that format) |
|
bool SetMaxVersion(int nVersion); |
|
|
|
//! get the current wallet format (the oldest client version guaranteed to understand this wallet) |
|
int GetVersion() { LOCK(cs_wallet); return nWalletVersion; } |
|
|
|
//! Get wallet transactions that conflict with given transaction (spend same outputs) |
|
std::set<uint256> GetConflicts(const uint256& txid) const; |
|
|
|
//! Check if a given transaction has any of its outputs spent by another transaction in the wallet |
|
bool HasWalletSpend(const uint256& txid) const; |
|
|
|
//! Flush wallet (bitdb flush) |
|
void Flush(bool shutdown=false); |
|
|
|
/** |
|
* Address book entry changed. |
|
* @note called with lock cs_wallet held. |
|
*/ |
|
boost::signals2::signal<void (CWallet *wallet, const CTxDestination |
|
&address, const std::string &label, bool isMine, |
|
const std::string &purpose, |
|
ChangeType status)> NotifyAddressBookChanged; |
|
|
|
/** |
|
* Wallet transaction added, removed or updated. |
|
* @note called with lock cs_wallet held. |
|
*/ |
|
boost::signals2::signal<void (CWallet *wallet, const uint256 &hashTx, |
|
ChangeType status)> NotifyTransactionChanged; |
|
|
|
/** Show progress e.g. for rescan */ |
|
boost::signals2::signal<void (const std::string &title, int nProgress)> ShowProgress; |
|
|
|
/** Watch-only address added */ |
|
boost::signals2::signal<void (bool fHaveWatchOnly)> NotifyWatchonlyChanged; |
|
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/** Inquire whether this wallet broadcasts transactions. */ |
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bool GetBroadcastTransactions() const { return fBroadcastTransactions; } |
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/** Set whether this wallet broadcasts transactions. */ |
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void SetBroadcastTransactions(bool broadcast) { fBroadcastTransactions = broadcast; } |
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/** Return whether transaction can be abandoned */ |
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bool TransactionCanBeAbandoned(const uint256& hashTx) const; |
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/* Mark a transaction (and it in-wallet descendants) as abandoned so its inputs may be respent. */ |
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bool AbandonTransaction(const uint256& hashTx); |
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/** Mark a transaction as replaced by another transaction (e.g., BIP 125). */ |
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bool MarkReplaced(const uint256& originalHash, const uint256& newHash); |
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|
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/* Initializes the wallet, returns a new CWallet instance or a null pointer in case of an error */ |
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static CWallet* CreateWalletFromFile(const std::string walletFile); |
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/** |
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* Wallet post-init setup |
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* Gives the wallet a chance to register repetitive tasks and complete post-init tasks |
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*/ |
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void postInitProcess(CScheduler& scheduler); |
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|
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bool BackupWallet(const std::string& strDest); |
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/* Set the HD chain model (chain child index counters) */ |
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bool SetHDChain(const CHDChain& chain, bool memonly); |
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const CHDChain& GetHDChain() const { return hdChain; } |
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/* Returns true if HD is enabled */ |
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bool IsHDEnabled() const; |
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/* Generates a new HD master key (will not be activated) */ |
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CPubKey GenerateNewHDMasterKey(); |
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|
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/* Set the current HD master key (will reset the chain child index counters) |
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Sets the master key's version based on the current wallet version (so the |
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caller must ensure the current wallet version is correct before calling |
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this function). */ |
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bool SetHDMasterKey(const CPubKey& key); |
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/** |
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* Blocks until the wallet state is up-to-date to /at least/ the current |
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* chain at the time this function is entered |
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* Obviously holding cs_main/cs_wallet when going into this call may cause |
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* deadlock |
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*/ |
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void BlockUntilSyncedToCurrentChain(); |
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|
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/** |
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* Explicitly make the wallet learn the related scripts for outputs to the |
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* given key. This is purely to make the wallet file compatible with older |
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* software, as CBasicKeyStore automatically does this implicitly for all |
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* keys now. |
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*/ |
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void LearnRelatedScripts(const CPubKey& key, OutputType); |
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|
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/** |
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* Same as LearnRelatedScripts, but when the OutputType is not known (and could |
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* be anything). |
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*/ |
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void LearnAllRelatedScripts(const CPubKey& key); |
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|
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/** |
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* Get a destination of the requested type (if possible) to the specified script. |
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* This function will automatically add the necessary scripts to the wallet. |
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*/ |
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CTxDestination AddAndGetDestinationForScript(const CScript& script, OutputType); |
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}; |
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/** A key allocated from the key pool. */ |
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class CReserveKey final : public CReserveScript |
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{ |
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protected: |
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CWallet* pwallet; |
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int64_t nIndex; |
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CPubKey vchPubKey; |
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bool fInternal; |
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public: |
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explicit CReserveKey(CWallet* pwalletIn) |
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{ |
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nIndex = -1; |
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pwallet = pwalletIn; |
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fInternal = false; |
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} |
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|
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CReserveKey() = default; |
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CReserveKey(const CReserveKey&) = delete; |
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CReserveKey& operator=(const CReserveKey&) = delete; |
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|
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~CReserveKey() |
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{ |
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ReturnKey(); |
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} |
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|
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void ReturnKey(); |
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bool GetReservedKey(CPubKey &pubkey, bool internal = false); |
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void KeepKey(); |
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void KeepScript() override { KeepKey(); } |
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}; |
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/** |
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* Account information. |
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* Stored in wallet with key "acc"+string account name. |
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*/ |
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class CAccount |
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{ |
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public: |
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CPubKey vchPubKey; |
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|
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CAccount() |
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{ |
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SetNull(); |
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} |
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|
|
void SetNull() |
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{ |
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vchPubKey = CPubKey(); |
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} |
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|
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ADD_SERIALIZE_METHODS; |
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|
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template <typename Stream, typename Operation> |
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inline void SerializationOp(Stream& s, Operation ser_action) { |
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int nVersion = s.GetVersion(); |
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if (!(s.GetType() & SER_GETHASH)) |
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READWRITE(nVersion); |
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READWRITE(vchPubKey); |
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} |
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}; |
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|
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// Helper for producing a bunch of max-sized low-S signatures (eg 72 bytes) |
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// ContainerType is meant to hold pair<CWalletTx *, int>, and be iterable |
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// so that each entry corresponds to each vIn, in order. |
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template <typename ContainerType> |
|
bool CWallet::DummySignTx(CMutableTransaction &txNew, const ContainerType &coins) const |
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{ |
|
// Fill in dummy signatures for fee calculation. |
|
int nIn = 0; |
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for (const auto& coin : coins) |
|
{ |
|
const CScript& scriptPubKey = coin.txout.scriptPubKey; |
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SignatureData sigdata; |
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|
|
if (!ProduceSignature(DummySignatureCreator(this), scriptPubKey, sigdata)) |
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{ |
|
return false; |
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} else { |
|
UpdateTransaction(txNew, nIn, sigdata); |
|
} |
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|
|
nIn++; |
|
} |
|
return true; |
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} |
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|
|
OutputType ParseOutputType(const std::string& str, OutputType default_type = OUTPUT_TYPE_DEFAULT); |
|
const std::string& FormatOutputType(OutputType type); |
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|
|
/** |
|
* Get a destination of the requested type (if possible) to the specified key. |
|
* The caller must make sure LearnRelatedScripts has been called beforehand. |
|
*/ |
|
CTxDestination GetDestinationForKey(const CPubKey& key, OutputType); |
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|
|
/** Get all destinations (potentially) supported by the wallet for the given key. */ |
|
std::vector<CTxDestination> GetAllDestinationsForKey(const CPubKey& key); |
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|
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#endif // BITCOIN_WALLET_WALLET_H
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