439e1497e1
Do not automatically change the wallet format unless the user takes an explicit action that implies an upgrade (encrypting, for now), or uses -walletupgrade. -walletupgrade optionally takes an integer argument: the client version up to which upgrading is allowed. Without an argument, it is upgraded to latest supported version. If an argument to -walletupgrade is provided at the time the wallet is created, the new wallet will initially not use features beyond that version. Third, the current wallet version number is reported in getinfo.
689 lines
20 KiB
C++
689 lines
20 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2012 The Bitcoin developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file license.txt or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_WALLET_H
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#define BITCOIN_WALLET_H
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#include "bignum.h"
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#include "key.h"
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#include "keystore.h"
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#include "script.h"
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class CWalletTx;
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class CReserveKey;
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class CWalletDB;
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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 getinfo'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_LATEST = 60000
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};
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// A CWallet is an extension of a keystore, which also maintains a set of
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// transactions and balances, and provides the ability to create new
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// transactions
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class CWallet : public CCryptoKeyStore
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{
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private:
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bool SelectCoinsMinConf(int64 nTargetValue, int nConfMine, int nConfTheirs, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const;
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bool SelectCoins(int64 nTargetValue, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const;
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CWalletDB *pwalletdbEncryption;
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// the current wallet version: clients below this version are not able to load the wallet
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int nWalletVersion;
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// the maxmimum wallet format version: memory-only variable that specifies to what version this wallet may be upgraded
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int nWalletMaxVersion;
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public:
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mutable CCriticalSection cs_wallet;
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bool fFileBacked;
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std::string strWalletFile;
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std::set<int64> setKeyPool;
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typedef std::map<unsigned int, CMasterKey> MasterKeyMap;
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MasterKeyMap mapMasterKeys;
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unsigned int nMasterKeyMaxID;
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CWallet()
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{
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nWalletVersion = FEATURE_BASE;
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nWalletMaxVersion = FEATURE_BASE;
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fFileBacked = false;
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nMasterKeyMaxID = 0;
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pwalletdbEncryption = NULL;
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}
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CWallet(std::string strWalletFileIn)
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{
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nWalletVersion = FEATURE_BASE;
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nWalletMaxVersion = FEATURE_BASE;
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strWalletFile = strWalletFileIn;
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fFileBacked = true;
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nMasterKeyMaxID = 0;
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pwalletdbEncryption = NULL;
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}
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std::map<uint256, CWalletTx> mapWallet;
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std::vector<uint256> vWalletUpdated;
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std::map<uint256, int> mapRequestCount;
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std::map<CBitcoinAddress, std::string> mapAddressBook;
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std::vector<unsigned char> vchDefaultKey;
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// check whether we are allowed to upgrade (or already support) to the named feature
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bool CanSupportFeature(enum WalletFeature wf) { return nWalletMaxVersion >= wf; }
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// keystore implementation
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// Generate a new key
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std::vector<unsigned char> GenerateNewKey();
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// Adds a key to the store, and saves it to disk.
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bool AddKey(const CKey& key);
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// Adds a key to the store, without saving it to disk (used by LoadWallet)
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bool LoadKey(const CKey& key) { return CCryptoKeyStore::AddKey(key); }
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bool LoadMinVersion(int nVersion) { nWalletVersion = nVersion; nWalletMaxVersion = std::max(nWalletMaxVersion, nVersion); return true; }
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// Adds an encrypted key to the store, and saves it to disk.
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bool AddCryptedKey(const std::vector<unsigned char> &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret);
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// Adds an encrypted key to the store, without saving it to disk (used by LoadWallet)
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bool LoadCryptedKey(const std::vector<unsigned char> &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret) { SetMinVersion(FEATURE_WALLETCRYPT); return CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret); }
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bool AddCScript(const CScript& redeemScript);
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bool LoadCScript(const CScript& redeemScript) { return CCryptoKeyStore::AddCScript(redeemScript); }
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bool Unlock(const SecureString& strWalletPassphrase);
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bool ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase);
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bool EncryptWallet(const SecureString& strWalletPassphrase);
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void MarkDirty();
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bool AddToWallet(const CWalletTx& wtxIn);
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bool AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pblock, bool fUpdate = false, bool fFindBlock = false);
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bool EraseFromWallet(uint256 hash);
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void WalletUpdateSpent(const CTransaction& prevout);
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int ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate = false);
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int ScanForWalletTransaction(const uint256& hashTx);
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void ReacceptWalletTransactions();
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void ResendWalletTransactions();
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int64 GetBalance() const;
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int64 GetUnconfirmedBalance() const;
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bool CreateTransaction(const std::vector<std::pair<CScript, int64> >& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet);
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bool CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet);
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bool CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey);
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std::string SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
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std::string SendMoneyToBitcoinAddress(const CBitcoinAddress& address, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
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bool NewKeyPool();
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bool TopUpKeyPool();
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int64 AddReserveKey(const CKeyPool& keypool);
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void ReserveKeyFromKeyPool(int64& nIndex, CKeyPool& keypool);
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void KeepKey(int64 nIndex);
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void ReturnKey(int64 nIndex);
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bool GetKeyFromPool(std::vector<unsigned char> &key, bool fAllowReuse=true);
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int64 GetOldestKeyPoolTime();
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void GetAllReserveAddresses(std::set<CBitcoinAddress>& setAddress);
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bool IsMine(const CTxIn& txin) const;
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int64 GetDebit(const CTxIn& txin) const;
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bool IsMine(const CTxOut& txout) const
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{
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return ::IsMine(*this, txout.scriptPubKey);
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}
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int64 GetCredit(const CTxOut& txout) const
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{
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if (!MoneyRange(txout.nValue))
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throw std::runtime_error("CWallet::GetCredit() : value out of range");
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return (IsMine(txout) ? txout.nValue : 0);
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}
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bool IsChange(const CTxOut& txout) const;
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int64 GetChange(const CTxOut& txout) const
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{
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if (!MoneyRange(txout.nValue))
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throw std::runtime_error("CWallet::GetChange() : value out of range");
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return (IsChange(txout) ? txout.nValue : 0);
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}
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bool IsMine(const CTransaction& tx) const
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{
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BOOST_FOREACH(const CTxOut& txout, tx.vout)
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if (IsMine(txout))
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return true;
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return false;
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}
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bool IsFromMe(const CTransaction& tx) const
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{
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return (GetDebit(tx) > 0);
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}
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int64 GetDebit(const CTransaction& tx) const
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{
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int64 nDebit = 0;
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BOOST_FOREACH(const CTxIn& txin, tx.vin)
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{
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nDebit += GetDebit(txin);
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if (!MoneyRange(nDebit))
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throw std::runtime_error("CWallet::GetDebit() : value out of range");
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}
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return nDebit;
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}
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int64 GetCredit(const CTransaction& tx) const
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{
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int64 nCredit = 0;
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BOOST_FOREACH(const CTxOut& txout, tx.vout)
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{
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nCredit += GetCredit(txout);
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if (!MoneyRange(nCredit))
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throw std::runtime_error("CWallet::GetCredit() : value out of range");
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}
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return nCredit;
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}
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int64 GetChange(const CTransaction& tx) const
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{
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int64 nChange = 0;
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BOOST_FOREACH(const CTxOut& txout, tx.vout)
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{
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nChange += GetChange(txout);
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if (!MoneyRange(nChange))
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throw std::runtime_error("CWallet::GetChange() : value out of range");
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}
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return nChange;
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}
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void SetBestChain(const CBlockLocator& loc)
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{
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CWalletDB walletdb(strWalletFile);
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walletdb.WriteBestBlock(loc);
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}
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int LoadWallet(bool& fFirstRunRet);
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// bool BackupWallet(const std::string& strDest);
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bool SetAddressBookName(const CBitcoinAddress& address, const std::string& strName);
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bool DelAddressBookName(const CBitcoinAddress& address);
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void UpdatedTransaction(const uint256 &hashTx)
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{
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CRITICAL_BLOCK(cs_wallet)
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vWalletUpdated.push_back(hashTx);
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}
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void PrintWallet(const CBlock& block);
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void Inventory(const uint256 &hash)
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{
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CRITICAL_BLOCK(cs_wallet)
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{
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std::map<uint256, int>::iterator mi = mapRequestCount.find(hash);
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if (mi != mapRequestCount.end())
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(*mi).second++;
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}
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}
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int GetKeyPoolSize()
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{
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return setKeyPool.size();
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}
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bool GetTransaction(const uint256 &hashTx, CWalletTx& wtx);
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bool SetDefaultKey(const std::vector<unsigned char> &vchPubKey);
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// signify that a particular wallet feature is now used. this may change nWalletVersion and nWalletMaxVersion if those are lower
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bool SetMinVersion(enum WalletFeature, CWalletDB* pwalletdbIn = NULL, bool fExplicit = false);
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// change which version we're allowed to upgrade to (note that this does not immediately imply upgrading to that format)
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bool SetMaxVersion(int nVersion);
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// get the current wallet format (the oldest client version guaranteed to understand this wallet)
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int GetVersion() { return nWalletVersion; }
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};
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class CReserveKey
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{
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protected:
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CWallet* pwallet;
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int64 nIndex;
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std::vector<unsigned char> vchPubKey;
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public:
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CReserveKey(CWallet* pwalletIn)
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{
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nIndex = -1;
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pwallet = pwalletIn;
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}
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~CReserveKey()
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{
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if (!fShutdown)
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ReturnKey();
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}
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void ReturnKey();
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std::vector<unsigned char> GetReservedKey();
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void KeepKey();
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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
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// about. It includes any unrecorded transactions needed to link it back
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// 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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std::vector<CMerkleTx> vtxPrev;
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std::map<std::string, std::string> 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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char fFromMe;
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std::string strFromAccount;
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std::vector<char> vfSpent; // which outputs are already spent
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// memory only
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mutable char fDebitCached;
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mutable char fCreditCached;
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mutable char fAvailableCreditCached;
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mutable char fChangeCached;
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mutable int64 nDebitCached;
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mutable int64 nCreditCached;
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mutable int64 nAvailableCreditCached;
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mutable int64 nChangeCached;
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// memory only UI hints
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mutable unsigned int nTimeDisplayed;
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mutable int nLinesDisplayed;
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mutable char fConfirmedDisplayed;
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CWalletTx()
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{
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Init(NULL);
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}
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CWalletTx(const CWallet* pwalletIn)
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{
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Init(pwalletIn);
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}
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CWalletTx(const CWallet* pwalletIn, const CMerkleTx& txIn) : CMerkleTx(txIn)
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{
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Init(pwalletIn);
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}
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CWalletTx(const CWallet* pwalletIn, const CTransaction& txIn) : CMerkleTx(txIn)
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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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vtxPrev.clear();
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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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fFromMe = false;
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strFromAccount.clear();
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vfSpent.clear();
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fDebitCached = false;
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fCreditCached = false;
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fAvailableCreditCached = false;
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fChangeCached = false;
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nDebitCached = 0;
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nCreditCached = 0;
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nAvailableCreditCached = 0;
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nChangeCached = 0;
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nTimeDisplayed = 0;
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nLinesDisplayed = 0;
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fConfirmedDisplayed = false;
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}
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IMPLEMENT_SERIALIZE
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(
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CWalletTx* pthis = const_cast<CWalletTx*>(this);
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if (fRead)
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pthis->Init(NULL);
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char fSpent = false;
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if (!fRead)
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{
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pthis->mapValue["fromaccount"] = pthis->strFromAccount;
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std::string str;
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BOOST_FOREACH(char f, vfSpent)
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{
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str += (f ? '1' : '0');
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if (f)
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fSpent = true;
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}
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pthis->mapValue["spent"] = str;
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}
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nSerSize += SerReadWrite(s, *(CMerkleTx*)this, nType, nVersion,ser_action);
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READWRITE(vtxPrev);
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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 (fRead)
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{
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pthis->strFromAccount = pthis->mapValue["fromaccount"];
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if (mapValue.count("spent"))
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BOOST_FOREACH(char c, pthis->mapValue["spent"])
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pthis->vfSpent.push_back(c != '0');
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else
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pthis->vfSpent.assign(vout.size(), fSpent);
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}
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pthis->mapValue.erase("fromaccount");
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pthis->mapValue.erase("version");
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pthis->mapValue.erase("spent");
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)
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// marks certain txout's as spent
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// returns true if any update took place
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bool UpdateSpent(const std::vector<char>& vfNewSpent)
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{
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bool fReturn = false;
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for (int i=0; i < vfNewSpent.size(); i++)
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{
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if (i == vfSpent.size())
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break;
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if (vfNewSpent[i] && !vfSpent[i])
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{
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vfSpent[i] = true;
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fReturn = true;
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fAvailableCreditCached = false;
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}
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}
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return fReturn;
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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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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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void MarkSpent(unsigned int nOut)
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{
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if (nOut >= vout.size())
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throw std::runtime_error("CWalletTx::MarkSpent() : nOut out of range");
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vfSpent.resize(vout.size());
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if (!vfSpent[nOut])
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{
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vfSpent[nOut] = true;
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fAvailableCreditCached = false;
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}
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}
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bool IsSpent(unsigned int nOut) const
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{
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if (nOut >= vout.size())
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throw std::runtime_error("CWalletTx::IsSpent() : nOut out of range");
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if (nOut >= vfSpent.size())
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return false;
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return (!!vfSpent[nOut]);
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}
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int64 GetDebit() const
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{
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if (vin.empty())
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return 0;
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if (fDebitCached)
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return nDebitCached;
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nDebitCached = pwallet->GetDebit(*this);
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fDebitCached = true;
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return nDebitCached;
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}
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int64 GetCredit(bool fUseCache=true) const
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{
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// Must wait until coinbase is safely deep enough in the chain before valuing it
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if (IsCoinBase() && GetBlocksToMaturity() > 0)
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return 0;
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// GetBalance can assume transactions in mapWallet won't change
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if (fUseCache && fCreditCached)
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return nCreditCached;
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nCreditCached = pwallet->GetCredit(*this);
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fCreditCached = true;
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return nCreditCached;
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}
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int64 GetAvailableCredit(bool fUseCache=true) const
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{
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// Must wait until coinbase is safely deep enough in the chain before valuing it
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if (IsCoinBase() && GetBlocksToMaturity() > 0)
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return 0;
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if (fUseCache && fAvailableCreditCached)
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return nAvailableCreditCached;
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int64 nCredit = 0;
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for (int i = 0; i < vout.size(); i++)
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{
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if (!IsSpent(i))
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{
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const CTxOut &txout = vout[i];
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nCredit += pwallet->GetCredit(txout);
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if (!MoneyRange(nCredit))
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throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
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}
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}
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nAvailableCreditCached = nCredit;
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fAvailableCreditCached = true;
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return nCredit;
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}
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int64 GetChange() const
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|
{
|
|
if (fChangeCached)
|
|
return nChangeCached;
|
|
nChangeCached = pwallet->GetChange(*this);
|
|
fChangeCached = true;
|
|
return nChangeCached;
|
|
}
|
|
|
|
void GetAmounts(int64& nGeneratedImmature, int64& nGeneratedMature, std::list<std::pair<CBitcoinAddress, int64> >& listReceived,
|
|
std::list<std::pair<CBitcoinAddress, int64> >& listSent, int64& nFee, std::string& strSentAccount) const;
|
|
|
|
void GetAccountAmounts(const std::string& strAccount, int64& nGenerated, int64& nReceived,
|
|
int64& nSent, int64& nFee) const;
|
|
|
|
bool IsFromMe() const
|
|
{
|
|
return (GetDebit() > 0);
|
|
}
|
|
|
|
bool IsConfirmed() const
|
|
{
|
|
// Quick answer in most cases
|
|
if (!IsFinal())
|
|
return false;
|
|
if (GetDepthInMainChain() >= 1)
|
|
return true;
|
|
if (!IsFromMe()) // using wtx's cached debit
|
|
return false;
|
|
|
|
// If no confirmations but it's from us, we can still
|
|
// consider it confirmed if all dependencies are confirmed
|
|
std::map<uint256, const CMerkleTx*> mapPrev;
|
|
std::vector<const CMerkleTx*> vWorkQueue;
|
|
vWorkQueue.reserve(vtxPrev.size()+1);
|
|
vWorkQueue.push_back(this);
|
|
for (int i = 0; i < vWorkQueue.size(); i++)
|
|
{
|
|
const CMerkleTx* ptx = vWorkQueue[i];
|
|
|
|
if (!ptx->IsFinal())
|
|
return false;
|
|
if (ptx->GetDepthInMainChain() >= 1)
|
|
continue;
|
|
if (!pwallet->IsFromMe(*ptx))
|
|
return false;
|
|
|
|
if (mapPrev.empty())
|
|
BOOST_FOREACH(const CMerkleTx& tx, vtxPrev)
|
|
mapPrev[tx.GetHash()] = &tx;
|
|
|
|
BOOST_FOREACH(const CTxIn& txin, ptx->vin)
|
|
{
|
|
if (!mapPrev.count(txin.prevout.hash))
|
|
return false;
|
|
vWorkQueue.push_back(mapPrev[txin.prevout.hash]);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool WriteToDisk();
|
|
|
|
int64 GetTxTime() const;
|
|
int GetRequestCount() const;
|
|
|
|
void AddSupportingTransactions(CTxDB& txdb);
|
|
|
|
bool AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs=true);
|
|
bool AcceptWalletTransaction();
|
|
|
|
void RelayWalletTransaction(CTxDB& txdb);
|
|
void RelayWalletTransaction();
|
|
};
|
|
|
|
|
|
//
|
|
// Private key that includes an expiration date in case it never gets used.
|
|
//
|
|
class CWalletKey
|
|
{
|
|
public:
|
|
CPrivKey vchPrivKey;
|
|
int64 nTimeCreated;
|
|
int64 nTimeExpires;
|
|
std::string strComment;
|
|
//// todo: add something to note what created it (user, getnewaddress, change)
|
|
//// maybe should have a map<string, string> property map
|
|
|
|
CWalletKey(int64 nExpires=0)
|
|
{
|
|
nTimeCreated = (nExpires ? GetTime() : 0);
|
|
nTimeExpires = nExpires;
|
|
}
|
|
|
|
IMPLEMENT_SERIALIZE
|
|
(
|
|
if (!(nType & SER_GETHASH))
|
|
READWRITE(nVersion);
|
|
READWRITE(vchPrivKey);
|
|
READWRITE(nTimeCreated);
|
|
READWRITE(nTimeExpires);
|
|
READWRITE(strComment);
|
|
)
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Account information.
|
|
// Stored in wallet with key "acc"+string account name
|
|
//
|
|
class CAccount
|
|
{
|
|
public:
|
|
std::vector<unsigned char> vchPubKey;
|
|
|
|
CAccount()
|
|
{
|
|
SetNull();
|
|
}
|
|
|
|
void SetNull()
|
|
{
|
|
vchPubKey.clear();
|
|
}
|
|
|
|
IMPLEMENT_SERIALIZE
|
|
(
|
|
if (!(nType & SER_GETHASH))
|
|
READWRITE(nVersion);
|
|
READWRITE(vchPubKey);
|
|
)
|
|
};
|
|
|
|
|
|
|
|
//
|
|
// Internal transfers.
|
|
// Database key is acentry<account><counter>
|
|
//
|
|
class CAccountingEntry
|
|
{
|
|
public:
|
|
std::string strAccount;
|
|
int64 nCreditDebit;
|
|
int64 nTime;
|
|
std::string strOtherAccount;
|
|
std::string strComment;
|
|
|
|
CAccountingEntry()
|
|
{
|
|
SetNull();
|
|
}
|
|
|
|
void SetNull()
|
|
{
|
|
nCreditDebit = 0;
|
|
nTime = 0;
|
|
strAccount.clear();
|
|
strOtherAccount.clear();
|
|
strComment.clear();
|
|
}
|
|
|
|
IMPLEMENT_SERIALIZE
|
|
(
|
|
if (!(nType & SER_GETHASH))
|
|
READWRITE(nVersion);
|
|
// Note: strAccount is serialized as part of the key, not here.
|
|
READWRITE(nCreditDebit);
|
|
READWRITE(nTime);
|
|
READWRITE(strOtherAccount);
|
|
READWRITE(strComment);
|
|
)
|
|
};
|
|
|
|
bool GetWalletFile(CWallet* pwallet, std::string &strWalletFileOut);
|
|
|
|
#endif
|