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walletdb.cpp
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walletdb.cpp
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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin developers
// Copyright (c) 2014-2015 The Dash developers
// Copyright (c) 2015-2018 The KORE developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "base58.h"
#include "init.h"
#include "protocol.h"
#include "serialize.h"
#include "sync.h"
#include "txdb.h"
#include "util.h"
#include "utiltime.h"
#include "wallet.h"
#include "walletdb.h"
#include <boost/filesystem.hpp>
#include <boost/foreach.hpp>
#include <boost/scoped_ptr.hpp>
#include <boost/thread.hpp>
#include <fstream>
using namespace boost;
using namespace std;
static uint64_t nAccountingEntryNumber = 0;
//
// CWalletDB
//
bool CWalletDB::WriteName(const string& strAddress, const string& strName)
{
nWalletDBUpdated++;
return Write(make_pair(string("name"), strAddress), strName);
}
bool CWalletDB::EraseName(const string& strAddress)
{
// This should only be used for sending addresses, never for receiving addresses,
// receiving addresses must always have an address book entry if they're not change return.
nWalletDBUpdated++;
return Erase(make_pair(string("name"), strAddress));
}
bool CWalletDB::WritePurpose(const string& strAddress, const string& strPurpose)
{
nWalletDBUpdated++;
return Write(make_pair(string("purpose"), strAddress), strPurpose);
}
bool CWalletDB::ErasePurpose(const string& strPurpose)
{
nWalletDBUpdated++;
return Erase(make_pair(string("purpose"), strPurpose));
}
bool CWalletDB::WriteTx(uint256 hash, const CWalletTx& wtx)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("tx"), hash), wtx);
}
bool CWalletDB::EraseTx(uint256 hash)
{
nWalletDBUpdated++;
return Erase(std::make_pair(std::string("tx"), hash));
}
bool CWalletDB::WriteKey(const CPubKey& vchPubKey, const CPrivKey& vchPrivKey, const CKeyMetadata& keyMeta)
{
nWalletDBUpdated++;
if (!Write(std::make_pair(std::string("keymeta"), vchPubKey),
keyMeta, false))
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 CWalletDB::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 CWalletDB::WriteMasterKey(unsigned int nID, const CMasterKey& kMasterKey)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("mkey"), nID), kMasterKey, true);
}
bool CWalletDB::WriteCScript(const uint160& hash, const CScript& redeemScript)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("cscript"), hash), redeemScript, false);
}
bool CWalletDB::WriteWatchOnly(const CScript& dest)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("watchs"), dest), '1');
}
bool CWalletDB::EraseWatchOnly(const CScript& dest)
{
nWalletDBUpdated++;
return Erase(std::make_pair(std::string("watchs"), dest));
}
bool CWalletDB::WriteMultiSig(const CScript& dest)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("multisig"), dest), '1');
}
bool CWalletDB::EraseMultiSig(const CScript& dest)
{
nWalletDBUpdated++;
return Erase(std::make_pair(std::string("multisig"), dest));
}
bool CWalletDB::WriteBestBlock(const CBlockLocator& locator)
{
nWalletDBUpdated++;
return Write(std::string("bestblock"), locator);
}
bool CWalletDB::ReadBestBlock(CBlockLocator& locator)
{
return Read(std::string("bestblock"), locator);
}
bool CWalletDB::WriteOrderPosNext(int64_t nOrderPosNext)
{
nWalletDBUpdated++;
return Write(std::string("orderposnext"), nOrderPosNext);
}
//presstab HyperStake
bool CWalletDB::WriteMultiSend(std::vector<std::pair<std::string, int> > vMultiSend)
{
nWalletDBUpdated++;
bool ret = true;
for (unsigned int i = 0; i < vMultiSend.size(); i++) {
std::pair<std::string, int> pMultiSend;
pMultiSend = vMultiSend[i];
if (!Write(std::make_pair(std::string("multisend"), i), pMultiSend, true))
ret = false;
}
return ret;
}
//presstab HyperStake
bool CWalletDB::EraseMultiSend(std::vector<std::pair<std::string, int> > vMultiSend)
{
nWalletDBUpdated++;
bool ret = true;
for (unsigned int i = 0; i < vMultiSend.size(); i++) {
std::pair<std::string, int> pMultiSend;
pMultiSend = vMultiSend[i];
if (!Erase(std::make_pair(std::string("multisend"), i)))
ret = false;
}
return ret;
}
//presstab HyperStake
bool CWalletDB::WriteMSettings(bool fMultiSendStake, int nLastMultiSendHeight)
{
nWalletDBUpdated++;
std::pair<bool, int> pSettings(fMultiSendStake, nLastMultiSendHeight);
return Write(std::string("msettingsv2"), pSettings, true);
}
//presstab HyperStake
bool CWalletDB::WriteMSDisabledAddresses(std::vector<std::string> vDisabledAddresses)
{
nWalletDBUpdated++;
bool ret = true;
for (unsigned int i = 0; i < vDisabledAddresses.size(); i++) {
if (!Write(std::make_pair(std::string("mdisabled"), i), vDisabledAddresses[i]))
ret = false;
}
return ret;
}
//presstab HyperStake
bool CWalletDB::EraseMSDisabledAddresses(std::vector<std::string> vDisabledAddresses)
{
nWalletDBUpdated++;
bool ret = true;
for (unsigned int i = 0; i < vDisabledAddresses.size(); i++) {
if (!Erase(std::make_pair(std::string("mdisabled"), i)))
ret = false;
}
return ret;
}
bool CWalletDB::WriteAutoCombineSettings(bool fEnable, CAmount nCombineThreshold)
{
nWalletDBUpdated++;
std::pair<bool, CAmount> pSettings;
pSettings.first = fEnable;
pSettings.second = nCombineThreshold;
return Write(std::string("autocombinesettings"), pSettings, true);
}
bool CWalletDB::WriteDefaultKey(const CPubKey& vchPubKey)
{
nWalletDBUpdated++;
return Write(std::string("defaultkey"), vchPubKey);
}
bool CWalletDB::ReadPool(int64_t nPool, CKeyPool& keypool)
{
return Read(std::make_pair(std::string("pool"), nPool), keypool);
}
bool CWalletDB::WritePool(int64_t nPool, const CKeyPool& keypool)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("pool"), nPool), keypool);
}
bool CWalletDB::ErasePool(int64_t nPool)
{
nWalletDBUpdated++;
return Erase(std::make_pair(std::string("pool"), nPool));
}
bool CWalletDB::WriteMinVersion(int nVersion)
{
return Write(std::string("minversion"), nVersion);
}
bool CWalletDB::ReadAccount(const string& strAccount, CAccount& account)
{
account.SetNull();
return Read(make_pair(string("acc"), strAccount), account);
}
bool CWalletDB::WriteAccount(const string& strAccount, const CAccount& account)
{
return Write(make_pair(string("acc"), strAccount), account);
}
bool CWalletDB::WriteAccountingEntry(const uint64_t nAccEntryNum, const CAccountingEntry& acentry)
{
return Write(std::make_pair(std::string("acentry"), std::make_pair(acentry.strAccount, nAccEntryNum)), acentry);
}
bool CWalletDB::WriteAccountingEntry_Backend(const CAccountingEntry& acentry)
{
return WriteAccountingEntry(++nAccountingEntryNumber, acentry);
}
CAmount CWalletDB::GetAccountCreditDebit(const string& strAccount)
{
list<CAccountingEntry> entries;
ListAccountCreditDebit(strAccount, entries);
CAmount nCreditDebit = 0;
BOOST_FOREACH (const CAccountingEntry& entry, entries)
nCreditDebit += entry.nCreditDebit;
return nCreditDebit;
}
void CWalletDB::ListAccountCreditDebit(const string& strAccount, list<CAccountingEntry>& entries)
{
bool fAllAccounts = (strAccount == "*");
Dbc* pcursor = GetCursor();
if (!pcursor)
throw runtime_error("CWalletDB::ListAccountCreditDebit() : cannot create DB cursor");
unsigned int fFlags = DB_SET_RANGE;
while (true) {
// Read next record
CDataStream ssKey(SER_DISK, CLIENT_VERSION);
if (fFlags == DB_SET_RANGE)
ssKey << std::make_pair(std::string("acentry"), std::make_pair((fAllAccounts ? string("") : strAccount), uint64_t(0)));
CDataStream ssValue(SER_DISK, CLIENT_VERSION);
int ret = ReadAtCursor(pcursor, ssKey, ssValue, fFlags);
fFlags = DB_NEXT;
if (ret == DB_NOTFOUND)
break;
else if (ret != 0) {
pcursor->close();
throw runtime_error("CWalletDB::ListAccountCreditDebit() : error scanning DB");
}
// Unserialize
string strType;
ssKey >> strType;
if (strType != "acentry")
break;
CAccountingEntry acentry;
ssKey >> acentry.strAccount;
if (!fAllAccounts && acentry.strAccount != strAccount)
break;
ssValue >> acentry;
ssKey >> acentry.nEntryNo;
entries.push_back(acentry);
}
pcursor->close();
}
DBErrors CWalletDB::ReorderTransactions(CWallet* pwallet)
{
LOCK(pwallet->cs_wallet);
// Old wallets didn't have any defined order for transactions
// Probably a bad idea to change the output of this
// First: get all CWalletTx and CAccountingEntry into a sorted-by-time multimap.
typedef pair<CWalletTx*, CAccountingEntry*> TxPair;
typedef multimap<int64_t, TxPair> TxItems;
TxItems txByTime;
for (map<uint256, CWalletTx>::iterator it = pwallet->mapWallet.begin(); it != pwallet->mapWallet.end(); ++it) {
CWalletTx* wtx = &((*it).second);
txByTime.insert(make_pair(wtx->nTimeReceived, TxPair(wtx, (CAccountingEntry*)0)));
}
list<CAccountingEntry> acentries;
ListAccountCreditDebit("", acentries);
BOOST_FOREACH (CAccountingEntry& entry, acentries) {
txByTime.insert(make_pair(entry.nTime, TxPair((CWalletTx*)0, &entry)));
}
int64_t& nOrderPosNext = pwallet->nOrderPosNext;
nOrderPosNext = 0;
std::vector<int64_t> nOrderPosOffsets;
for (TxItems::iterator it = txByTime.begin(); it != txByTime.end(); ++it) {
CWalletTx* const pwtx = (*it).second.first;
CAccountingEntry* const pacentry = (*it).second.second;
int64_t& nOrderPos = (pwtx != 0) ? pwtx->nOrderPos : pacentry->nOrderPos;
if (nOrderPos == -1) {
nOrderPos = nOrderPosNext++;
nOrderPosOffsets.push_back(nOrderPos);
if (pwtx) {
if (!WriteTx(pwtx->GetHash(), *pwtx))
return DB_LOAD_FAIL;
} else if (!WriteAccountingEntry(pacentry->nEntryNo, *pacentry))
return DB_LOAD_FAIL;
} else {
int64_t nOrderPosOff = 0;
BOOST_FOREACH (const int64_t& nOffsetStart, nOrderPosOffsets) {
if (nOrderPos >= nOffsetStart)
++nOrderPosOff;
}
nOrderPos += nOrderPosOff;
nOrderPosNext = std::max(nOrderPosNext, nOrderPos + 1);
if (!nOrderPosOff)
continue;
// Since we're changing the order, write it back
if (pwtx) {
if (!WriteTx(pwtx->GetHash(), *pwtx))
return DB_LOAD_FAIL;
} else if (!WriteAccountingEntry(pacentry->nEntryNo, *pacentry))
return DB_LOAD_FAIL;
}
}
WriteOrderPosNext(nOrderPosNext);
return DB_LOAD_OK;
}
class CWalletScanState
{
public:
unsigned int nKeys;
unsigned int nCKeys;
unsigned int nKeyMeta;
bool fIsEncrypted;
bool fAnyUnordered;
int nFileVersion;
vector<uint256> vWalletUpgrade;
CWalletScanState()
{
nKeys = nCKeys = nKeyMeta = 0;
fIsEncrypted = false;
fAnyUnordered = false;
nFileVersion = 0;
}
};
bool ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue, CWalletScanState& wss, string& strType, string& strErr)
{
try {
// Unserialize
// Taking advantage of the fact that pair serialization
// is just the two items serialized one after the other
ssKey >> strType;
if (strType == "name") {
string strAddress;
ssKey >> strAddress;
ssValue >> pwallet->mapAddressBook[CBitcoinAddress(strAddress).Get()].name;
} else if (strType == "purpose") {
string strAddress;
ssKey >> strAddress;
ssValue >> pwallet->mapAddressBook[CBitcoinAddress(strAddress).Get()].purpose;
} else if (strType == "tx") {
uint256 hash;
ssKey >> hash;
CWalletTx wtx;
ssValue >> wtx;
CValidationState state;
if (!(CheckTransaction(wtx, state) && (wtx.GetHash() == hash) && state.IsValid()))
return false;
// Undo serialize changes in 31600
if (31404 <= wtx.fTimeReceivedIsTxTime && wtx.fTimeReceivedIsTxTime <= 31703) {
if (!ssValue.empty()) {
char fTmp;
char fUnused;
ssValue >> fTmp >> fUnused >> wtx.strFromAccount;
strErr = strprintf("LoadWallet() upgrading tx ver=%d %d '%s' %s",
wtx.fTimeReceivedIsTxTime, fTmp, wtx.strFromAccount, hash.ToString());
wtx.fTimeReceivedIsTxTime = fTmp;
} else {
strErr = strprintf("LoadWallet() repairing tx ver=%d %s", wtx.fTimeReceivedIsTxTime, hash.ToString());
wtx.fTimeReceivedIsTxTime = 0;
}
wss.vWalletUpgrade.push_back(hash);
}
if (wtx.nOrderPos == -1)
wss.fAnyUnordered = true;
pwallet->AddToWallet(wtx, true, NULL);
} else if (strType == "acentry") {
string strAccount;
ssKey >> strAccount;
uint64_t nNumber;
ssKey >> nNumber;
if (nNumber > nAccountingEntryNumber)
nAccountingEntryNumber = nNumber;
if (!wss.fAnyUnordered) {
CAccountingEntry acentry;
ssValue >> acentry;
if (acentry.nOrderPos == -1)
wss.fAnyUnordered = true;
}
} else if (strType == "watchs") {
CScript script;
ssKey >> script;
char fYes;
ssValue >> fYes;
if (fYes == '1')
pwallet->LoadWatchOnly(script);
// Watch-only addresses have no birthday information for now,
// so set the wallet birthday to the beginning of time.
pwallet->nTimeFirstKey = 1;
} else if (strType == "multisig") {
CScript script;
ssKey >> script;
char fYes;
ssValue >> fYes;
if (fYes == '1')
pwallet->LoadMultiSig(script);
// MultiSig addresses have no birthday information for now,
// so set the wallet birthday to the beginning of time.
pwallet->nTimeFirstKey = 1;
} else if (strType == "key" || strType == "wkey") {
CPubKey vchPubKey;
ssKey >> vchPubKey;
if (!vchPubKey.IsValid()) {
strErr = "Error reading wallet database: CPubKey corrupt";
return false;
}
CKey key;
CPrivKey pkey;
uint256 hash = 0;
if (strType == "key") {
wss.nKeys++;
ssValue >> pkey;
} else {
CWalletKey wkey;
ssValue >> wkey;
pkey = wkey.vchPrivKey;
}
// Old wallets store keys as "key" [pubkey] => [privkey]
// ... which was slow for wallets with lots of keys, because the public key is re-derived from the private key
// using EC operations as a checksum.
// Newer wallets store keys as "key"[pubkey] => [privkey][hash(pubkey,privkey)], which is much faster while
// remaining backwards-compatible.
try {
ssValue >> hash;
} catch (...) {
}
bool fSkipCheck = false;
if (hash != 0) {
// hash pubkey/privkey to accelerate wallet load
std::vector<unsigned char> vchKey;
vchKey.reserve(vchPubKey.size() + pkey.size());
vchKey.insert(vchKey.end(), vchPubKey.begin(), vchPubKey.end());
vchKey.insert(vchKey.end(), pkey.begin(), pkey.end());
if (Hash(vchKey.begin(), vchKey.end()) != hash) {
strErr = "Error reading wallet database: CPubKey/CPrivKey corrupt";
return false;
}
fSkipCheck = true;
}
if (!key.Load(pkey, vchPubKey, fSkipCheck)) {
strErr = "Error reading wallet database: CPrivKey corrupt";
return false;
}
if (!pwallet->LoadKey(key, vchPubKey)) {
strErr = "Error reading wallet database: LoadKey failed";
return false;
}
} else if (strType == "mkey") {
unsigned int nID;
ssKey >> nID;
CMasterKey kMasterKey;
ssValue >> kMasterKey;
if (pwallet->mapMasterKeys.count(nID) != 0) {
strErr = strprintf("Error reading wallet database: duplicate CMasterKey id %u", nID);
return false;
}
pwallet->mapMasterKeys[nID] = kMasterKey;
if (pwallet->nMasterKeyMaxID < nID)
pwallet->nMasterKeyMaxID = nID;
} else if (strType == "ckey") {
vector<unsigned char> vchPubKey;
ssKey >> vchPubKey;
vector<unsigned char> vchPrivKey;
ssValue >> vchPrivKey;
wss.nCKeys++;
if (!pwallet->LoadCryptedKey(vchPubKey, vchPrivKey)) {
strErr = "Error reading wallet database: LoadCryptedKey failed";
return false;
}
wss.fIsEncrypted = true;
} else if (strType == "keymeta") {
CPubKey vchPubKey;
ssKey >> vchPubKey;
CKeyMetadata keyMeta;
ssValue >> keyMeta;
wss.nKeyMeta++;
pwallet->LoadKeyMetadata(vchPubKey, keyMeta);
// find earliest key creation time, as wallet birthday
if (!pwallet->nTimeFirstKey ||
(keyMeta.nCreateTime < pwallet->nTimeFirstKey))
pwallet->nTimeFirstKey = keyMeta.nCreateTime;
} else if (strType == "defaultkey") {
ssValue >> pwallet->vchDefaultKey;
} else if (strType == "pool") {
int64_t nIndex;
ssKey >> nIndex;
CKeyPool keypool;
ssValue >> keypool;
pwallet->setKeyPool.insert(nIndex);
// If no metadata exists yet, create a default with the pool key's
// creation time. Note that this may be overwritten by actually
// stored metadata for that key later, which is fine.
CKeyID keyid = keypool.vchPubKey.GetID();
if (pwallet->mapKeyMetadata.count(keyid) == 0)
pwallet->mapKeyMetadata[keyid] = CKeyMetadata(keypool.nTime);
} else if (strType == "version") {
ssValue >> wss.nFileVersion;
if (wss.nFileVersion == 10300)
wss.nFileVersion = 300;
} else if (strType == "cscript") {
uint160 hash;
ssKey >> hash;
CScript script;
ssValue >> script;
if (!pwallet->LoadCScript(script)) {
strErr = "Error reading wallet database: LoadCScript failed";
return false;
}
} else if (strType == "orderposnext") {
ssValue >> pwallet->nOrderPosNext;
} else if (strType == "multisend") //presstab HyperStake
{
unsigned int i;
ssKey >> i;
std::pair<std::string, int> pMultiSend;
ssValue >> pMultiSend;
if (CBitcoinAddress(pMultiSend.first).IsValid()) {
pwallet->vMultiSend.push_back(pMultiSend);
}
} else if (strType == "msettingsv2") //presstab HyperStake
{
std::pair<bool, int> pSettings;
ssValue >> pSettings;
pwallet->fMultiSendStake = pSettings.first;
pwallet->nLastMultiSendHeight = pSettings.second;
} else if (strType == "mdisabled") //presstab HyperStake
{
std::string strDisabledAddress;
ssValue >> strDisabledAddress;
pwallet->vDisabledAddresses.push_back(strDisabledAddress);
} else if (strType == "autocombinesettings") {
std::pair<bool, CAmount> pSettings;
ssValue >> pSettings;
pwallet->fCombineDust = pSettings.first;
pwallet->nAutoCombineThreshold = pSettings.second;
} else if (strType == "destdata") {
std::string strAddress, strKey, strValue;
ssKey >> strAddress;
ssKey >> strKey;
ssValue >> strValue;
if (!pwallet->LoadDestData(CBitcoinAddress(strAddress).Get(), strKey, strValue)) {
strErr = "Error reading wallet database: LoadDestData failed";
return false;
}
}
} catch (...) {
return false;
}
return true;
}
static bool IsKeyType(string strType)
{
return (strType == "key" || strType == "wkey" ||
strType == "mkey" || strType == "ckey");
}
DBErrors CWalletDB::LoadWallet(CWallet* pwallet)
{
pwallet->vchDefaultKey = CPubKey();
CWalletScanState wss;
bool fNoncriticalErrors = false;
DBErrors result = DB_LOAD_OK;
try {
LOCK(pwallet->cs_wallet);
int nMinVersion = 0;
if (Read((string) "minversion", nMinVersion)) {
if (nMinVersion > CLIENT_VERSION)
return DB_TOO_NEW;
pwallet->LoadMinVersion(nMinVersion);
}
// Get cursor
Dbc* pcursor = GetCursor();
if (!pcursor) {
LogPrintf("Error getting wallet database cursor\n");
return DB_CORRUPT;
}
while (true) {
// Read next record
CDataStream ssKey(SER_DISK, CLIENT_VERSION);
CDataStream ssValue(SER_DISK, CLIENT_VERSION);
int ret = ReadAtCursor(pcursor, ssKey, ssValue);
if (ret == DB_NOTFOUND)
break;
else if (ret != 0) {
LogPrintf("Error reading next record from wallet database\n");
return DB_CORRUPT;
}
// Try to be tolerant of single corrupt records:
string strType, strErr;
if (!ReadKeyValue(pwallet, ssKey, ssValue, wss, strType, strErr)) {
// losing keys is considered a catastrophic error, anything else
// we assume the user can live with:
if (IsKeyType(strType))
result = DB_CORRUPT;
else {
// Leave other errors alone, if we try to fix them we might make things worse.
fNoncriticalErrors = true; // ... but do warn the user there is something wrong.
if (strType == "tx")
// Rescan if there is a bad transaction record:
SoftSetBoolArg("-rescan", true);
}
}
if (!strErr.empty())
LogPrintf("%s\n", strErr);
}
pcursor->close();
} catch (boost::thread_interrupted) {
throw;
} catch (...) {
result = DB_CORRUPT;
}
if (fNoncriticalErrors && result == DB_LOAD_OK)
result = DB_NONCRITICAL_ERROR;
// Any wallet corruption at all: skip any rewriting or
// upgrading, we don't want to make it worse.
if (result != DB_LOAD_OK)
return result;
LogPrintf("nFileVersion = %d\n", wss.nFileVersion);
LogPrintf("Keys: %u plaintext, %u encrypted, %u w/ metadata, %u total\n",
wss.nKeys, wss.nCKeys, wss.nKeyMeta, wss.nKeys + wss.nCKeys);
// nTimeFirstKey is only reliable if all keys have metadata
if ((wss.nKeys + wss.nCKeys) != wss.nKeyMeta)
pwallet->nTimeFirstKey = 1; // 0 would be considered 'no value'
BOOST_FOREACH (uint256 hash, wss.vWalletUpgrade)
WriteTx(hash, pwallet->mapWallet[hash]);
// Rewrite encrypted wallets of versions 0.4.0 and 0.5.0rc:
if (wss.fIsEncrypted && (wss.nFileVersion == 40000 || wss.nFileVersion == 50000))
return DB_NEED_REWRITE;
if (wss.nFileVersion < CLIENT_VERSION) // Update
WriteVersion(CLIENT_VERSION);
if (wss.fAnyUnordered)
result = ReorderTransactions(pwallet);
pwallet->laccentries.clear();
ListAccountCreditDebit("*", pwallet->laccentries);
BOOST_FOREACH (CAccountingEntry& entry, pwallet->laccentries) {
pwallet->wtxOrdered.insert(make_pair(entry.nOrderPos, CWallet::TxPair((CWalletTx*)0, &entry)));
}
return result;
}
DBErrors CWalletDB::FindWalletTx(CWallet* pwallet, vector<uint256>& vTxHash, vector<CWalletTx>& vWtx)
{
pwallet->vchDefaultKey = CPubKey();
bool fNoncriticalErrors = false;
DBErrors result = DB_LOAD_OK;
try {
LOCK(pwallet->cs_wallet);
int nMinVersion = 0;
if (Read((string) "minversion", nMinVersion)) {
if (nMinVersion > CLIENT_VERSION)
return DB_TOO_NEW;
pwallet->LoadMinVersion(nMinVersion);
}
// Get cursor
Dbc* pcursor = GetCursor();
if (!pcursor) {
LogPrintf("Error getting wallet database cursor\n");
return DB_CORRUPT;
}
while (true) {
// Read next record
CDataStream ssKey(SER_DISK, CLIENT_VERSION);
CDataStream ssValue(SER_DISK, CLIENT_VERSION);
int ret = ReadAtCursor(pcursor, ssKey, ssValue);
if (ret == DB_NOTFOUND)
break;
else if (ret != 0) {
LogPrintf("Error reading next record from wallet database\n");
return DB_CORRUPT;
}
string strType;
ssKey >> strType;
if (strType == "tx") {
uint256 hash;
ssKey >> hash;
CWalletTx wtx;
ssValue >> wtx;
vTxHash.push_back(hash);
vWtx.push_back(wtx);
}
}
pcursor->close();
} catch (boost::thread_interrupted) {
throw;
} catch (...) {
result = DB_CORRUPT;
}
if (fNoncriticalErrors && result == DB_LOAD_OK)
result = DB_NONCRITICAL_ERROR;
return result;
}
DBErrors CWalletDB::ZapWalletTx(CWallet* pwallet, vector<CWalletTx>& vWtx)
{
// build list of wallet TXs
vector<uint256> vTxHash;
DBErrors err = FindWalletTx(pwallet, vTxHash, vWtx);
if (err != DB_LOAD_OK)
return err;
// erase each wallet TX
BOOST_FOREACH (uint256& hash, vTxHash) {
if (!EraseTx(hash))
return DB_CORRUPT;
}
return DB_LOAD_OK;
}
void ThreadFlushWalletDB(const string& strFile)
{
// Make this thread recognisable as the wallet flushing thread
RenameThread("kore-wallet");
static bool fOneThread;
if (fOneThread)
return;
fOneThread = true;
if (!GetBoolArg("-flushwallet", true))
return;
unsigned int nLastSeen = nWalletDBUpdated;
unsigned int nLastFlushed = nWalletDBUpdated;
int64_t nLastWalletUpdate = GetTime();
while (!ShutdownRequested()) {
MilliSleep(500);
if (nLastSeen != nWalletDBUpdated) {
nLastSeen = nWalletDBUpdated;
nLastWalletUpdate = GetTime();
}
if (nLastFlushed != nWalletDBUpdated && GetTime() - nLastWalletUpdate >= 2) {
TRY_LOCK(bitdb.cs_db, lockDb);
if (lockDb) {
// Don't do this if any databases are in use
int nRefCount = 0;
map<string, int>::iterator mi = bitdb.mapFileUseCount.begin();
while (mi != bitdb.mapFileUseCount.end()) {
nRefCount += (*mi).second;
mi++;
}
if (nRefCount == 0) {
boost::this_thread::interruption_point();
map<string, int>::iterator mi = bitdb.mapFileUseCount.find(strFile);
if (mi != bitdb.mapFileUseCount.end()) {
LogPrint("db", "Flushing wallet.dat\n");
nLastFlushed = nWalletDBUpdated;
int64_t nStart = GetTimeMillis();
// Flush wallet.dat so it's self contained
bitdb.CloseDb(strFile);
bitdb.CheckpointLSN(strFile);
bitdb.mapFileUseCount.erase(mi++);
LogPrint("db", "Flushed wallet.dat %dms\n", GetTimeMillis() - nStart);
}
}
}
}
}
if (fDebug)
LogPrintf("Exiting kore-wallet at block: %d", GetnHeight(chainActive.Tip()));
}
void NotifyBacked(const CWallet& wallet, bool fSuccess, string strMessage)
{
LogPrint(nullptr, strMessage.data());
wallet.NotifyWalletBacked(fSuccess, strMessage);
}
bool BackupWallet(const CWallet& wallet, const filesystem::path& strDest, bool fEnableCustom)
{
filesystem::path pathCustom;
filesystem::path pathWithFile;
if (!wallet.fFileBacked) {
return false;
} else if (fEnableCustom) {
pathWithFile = GetArg("-backuppath", "");
if (!pathWithFile.empty()) {
if (!pathWithFile.has_extension()) {
pathCustom = pathWithFile;
pathWithFile /= wallet.GetUniqueWalletBackupName();
} else {
pathCustom = pathWithFile.parent_path();
}
try {
filesystem::create_directories(pathCustom);
} catch (const filesystem::filesystem_error& e) {
NotifyBacked(wallet, false, strprintf("%s\n", e.what()));
pathCustom = "";
}
}
}
while (true) {
{
LOCK(bitdb.cs_db);
if (!bitdb.mapFileUseCount.count(wallet.strWalletFile) || bitdb.mapFileUseCount[wallet.strWalletFile] == 0) {
// Flush log data to the dat file
bitdb.CloseDb(wallet.strWalletFile);
bitdb.CheckpointLSN(wallet.strWalletFile);
bitdb.mapFileUseCount.erase(wallet.strWalletFile);
// Copy wallet.dat
filesystem::path pathDest(strDest);
filesystem::path pathSrc = GetDataDir() / wallet.strWalletFile;
if (is_directory(pathDest)) {
if (!exists(pathDest)) create_directory(pathDest);
pathDest /= wallet.strWalletFile;
}
bool defaultPath = AttemptBackupWallet(wallet, pathSrc.string(), pathDest.string());
if (defaultPath && !pathCustom.empty()) {
int nThreshold = GetArg("-custombackupthreshold", DEFAULT_CUSTOMBACKUPTHRESHOLD);
if (nThreshold > 0) {
typedef std::multimap<std::time_t, filesystem::path> folder_set_t;
folder_set_t folderSet;
filesystem::directory_iterator end_iter;
pathCustom.make_preferred();
// Build map of backup files for current(!) wallet sorted by last write time
filesystem::path currentFile;
for (filesystem::directory_iterator dir_iter(pathCustom); dir_iter != end_iter; ++dir_iter) {
// Only check regular files
if (filesystem::is_regular_file(dir_iter->status())) {
currentFile = dir_iter->path().filename();
// Only add the backups for the current wallet, e.g. wallet.dat.*
if (dir_iter->path().stem().string() == wallet.strWalletFile) {
folderSet.insert(folder_set_t::value_type(filesystem::last_write_time(dir_iter->path()), *dir_iter));
}
}
}
int counter = 0; //TODO: add seconds to avoid naming conflicts
for (auto entry : folderSet) {
counter++;
if (entry.second == pathWithFile) {
pathWithFile += "(1)";
}
}
if (counter >= nThreshold) {
std::time_t oldestBackup = 0;
for (auto entry : folderSet) {
if (oldestBackup == 0 || entry.first < oldestBackup) {
oldestBackup = entry.first;
}
}
try {
auto entry = folderSet.find(oldestBackup);
if (entry != folderSet.end()) {
filesystem::remove(entry->second);
LogPrintf("Old backup deleted: %s\n", (*entry).second);
}
} catch (filesystem::filesystem_error& error) {
string strMessage = strprintf("Failed to delete backup %s\n", error.what());
LogPrint(nullptr, strMessage.data());
NotifyBacked(wallet, false, strMessage);
}
}
}
AttemptBackupWallet(wallet, pathSrc.string(), pathWithFile.string());
}
return defaultPath;
}
}
MilliSleep(100);
}