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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2013 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_WALLETDB_H
#define BITCOIN_WALLETDB_H
#include "db.h"
#include "base58.h"
class CKeyPool;
class CAccount;
class CAccountingEntry;
class CWallet;
class CWalletTx;
/** Error statuses for the wallet database */
enum DBErrors
{
DB_LOAD_OK,
DB_CORRUPT,
DB_NONCRITICAL_ERROR,
DB_TOO_NEW,
DB_LOAD_FAIL,
DB_NEED_REWRITE
};
class CKeyMetadata
{
public:
static const int CURRENT_VERSION=1;
int nVersion;
int64 nCreateTime; // 0 means unknown
CKeyMetadata()
{
SetNull();
}
CKeyMetadata(int64 nCreateTime_)
{
nVersion = CKeyMetadata::CURRENT_VERSION;
nCreateTime = nCreateTime_;
}
IMPLEMENT_SERIALIZE
(
READWRITE(this->nVersion);
nVersion = this->nVersion;
READWRITE(nCreateTime);
)
void SetNull()
{
nVersion = CKeyMetadata::CURRENT_VERSION;
nCreateTime = 0;
}
};
/** Access to the wallet database (wallet.dat) */
class CWalletDB : public CDB
{
public:
CWalletDB(std::string strFilename, const char* pszMode="r+") : CDB(strFilename.c_str(), pszMode)
{
}
private:
CWalletDB(const CWalletDB&);
void operator=(const CWalletDB&);
public:
bool WriteName(const std::string& strAddress, const std::string& strName);
bool EraseName(const std::string& strAddress);
bool WritePurpose(const std::string& strAddress, const std::string& purpose);
bool ErasePurpose(const std::string& strAddress);
bool WriteTx(uint256 hash, const CWalletTx& wtx)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("tx"), hash), wtx);
}
bool EraseTx(uint256 hash)
{
nWalletDBUpdated++;
return Erase(std::make_pair(std::string("tx"), hash));
}
bool WriteKey(const CPubKey& vchPubKey, const CPrivKey& vchPrivKey,
const CKeyMetadata &keyMeta)
{
nWalletDBUpdated++;
if (!Write(std::make_pair(std::string("keymeta"), vchPubKey),
keyMeta))
return false;
// hash pubkey/privkey to accelerate wallet load
std::vector<unsigned char> vchKey;
vchKey.reserve(vchPubKey.size() + vchPrivKey.size());
vchKey.insert(vchKey.end(), vchPubKey.begin(), vchPubKey.end());
vchKey.insert(vchKey.end(), vchPrivKey.begin(), vchPrivKey.end());
return Write(std::make_pair(std::string("key"), vchPubKey), std::make_pair(vchPrivKey, Hash(vchKey.begin(), vchKey.end())), false);
}
bool WriteCryptedKey(const CPubKey& vchPubKey,
const std::vector<unsigned char>& vchCryptedSecret,
const CKeyMetadata &keyMeta)
{
const bool fEraseUnencryptedKey = true;
nWalletDBUpdated++;
if (!Write(std::make_pair(std::string("keymeta"), vchPubKey),
keyMeta))
return false;
if (!Write(std::make_pair(std::string("ckey"), vchPubKey), vchCryptedSecret, false))
return false;
if (fEraseUnencryptedKey)
{
Erase(std::make_pair(std::string("key"), vchPubKey));
Erase(std::make_pair(std::string("wkey"), vchPubKey));
}
return true;
}
bool WriteMasterKey(unsigned int nID, const CMasterKey& kMasterKey)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("mkey"), nID), kMasterKey, true);
}
bool WriteCScript(const uint160& hash, const CScript& redeemScript)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("cscript"), hash), redeemScript, false);
}
bool WriteBestBlock(const CBlockLocator& locator)
{
nWalletDBUpdated++;
return Write(std::string("bestblock"), locator);
}
bool ReadBestBlock(CBlockLocator& locator)
{
return Read(std::string("bestblock"), locator);
}
bool WriteOrderPosNext(int64 nOrderPosNext)
{
nWalletDBUpdated++;
return Write(std::string("orderposnext"), nOrderPosNext);
}
bool WriteDefaultKey(const CPubKey& vchPubKey)
{
nWalletDBUpdated++;
return Write(std::string("defaultkey"), vchPubKey);
}
bool ReadPool(int64 nPool, CKeyPool& keypool)
{
return Read(std::make_pair(std::string("pool"), nPool), keypool);
}
bool WritePool(int64 nPool, const CKeyPool& keypool)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("pool"), nPool), keypool);
}
bool ErasePool(int64 nPool)
{
nWalletDBUpdated++;
return Erase(std::make_pair(std::string("pool"), nPool));
}
// Settings are no longer stored in wallet.dat; these are
// used only for backwards compatibility:
template<typename T>
bool ReadSetting(const std::string& strKey, T& value)
{
return Read(std::make_pair(std::string("setting"), strKey), value);
}
template<typename T>
bool WriteSetting(const std::string& strKey, const T& value)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("setting"), strKey), value);
}
bool EraseSetting(const std::string& strKey)
{
nWalletDBUpdated++;
return Erase(std::make_pair(std::string("setting"), strKey));
}
bool WriteMinVersion(int nVersion)
{
return Write(std::string("minversion"), nVersion);
}
bool ReadAccount(const std::string& strAccount, CAccount& account);
bool WriteAccount(const std::string& strAccount, const CAccount& account);
private:
bool WriteAccountingEntry(const uint64 nAccEntryNum, const CAccountingEntry& acentry);
public:
bool WriteAccountingEntry(const CAccountingEntry& acentry);
int64 GetAccountCreditDebit(const std::string& strAccount);
void ListAccountCreditDebit(const std::string& strAccount, std::list<CAccountingEntry>& acentries);
DBErrors ReorderTransactions(CWallet*);
DBErrors LoadWallet(CWallet* pwallet);
static bool Recover(CDBEnv& dbenv, std::string filename, bool fOnlyKeys);
static bool Recover(CDBEnv& dbenv, std::string filename);
};
bool BackupWallet(const CWallet& wallet, const std::string& strDest);
#endif // BITCOIN_WALLETDB_H
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