aboutsummaryrefslogtreecommitdiff
path: root/src/wallet/walletdb.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/wallet/walletdb.cpp')
-rw-r--r--src/wallet/walletdb.cpp986
1 files changed, 986 insertions, 0 deletions
diff --git a/src/wallet/walletdb.cpp b/src/wallet/walletdb.cpp
new file mode 100644
index 0000000000..880026d187
--- /dev/null
+++ b/src/wallet/walletdb.cpp
@@ -0,0 +1,986 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "wallet/walletdb.h"
+
+#include "base58.h"
+#include "protocol.h"
+#include "serialize.h"
+#include "sync.h"
+#include "util.h"
+#include "utiltime.h"
+#include "wallet/wallet.h"
+
+#include <boost/filesystem.hpp>
+#include <boost/foreach.hpp>
+#include <boost/scoped_ptr.hpp>
+#include <boost/thread.hpp>
+
+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::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);
+}
+
+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(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 == "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;
+
+ 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.IsNull())
+ {
+ // 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 == "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 (const 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);
+
+ 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 (const 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("bitcoin-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 (true)
+ {
+ 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);
+ }
+ }
+ }
+ }
+ }
+}
+
+bool BackupWallet(const CWallet& wallet, const string& strDest)
+{
+ if (!wallet.fFileBacked)
+ return false;
+ 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
+ boost::filesystem::path pathSrc = GetDataDir() / wallet.strWalletFile;
+ boost::filesystem::path pathDest(strDest);
+ if (boost::filesystem::is_directory(pathDest))
+ pathDest /= wallet.strWalletFile;
+
+ try {
+#if BOOST_VERSION >= 104000
+ boost::filesystem::copy_file(pathSrc, pathDest, boost::filesystem::copy_option::overwrite_if_exists);
+#else
+ boost::filesystem::copy_file(pathSrc, pathDest);
+#endif
+ LogPrintf("copied wallet.dat to %s\n", pathDest.string());
+ return true;
+ } catch (const boost::filesystem::filesystem_error& e) {
+ LogPrintf("error copying wallet.dat to %s - %s\n", pathDest.string(), e.what());
+ return false;
+ }
+ }
+ }
+ MilliSleep(100);
+ }
+ return false;
+}
+
+//
+// Try to (very carefully!) recover wallet.dat if there is a problem.
+//
+bool CWalletDB::Recover(CDBEnv& dbenv, std::string filename, bool fOnlyKeys)
+{
+ // Recovery procedure:
+ // move wallet.dat to wallet.timestamp.bak
+ // Call Salvage with fAggressive=true to
+ // get as much data as possible.
+ // Rewrite salvaged data to wallet.dat
+ // Set -rescan so any missing transactions will be
+ // found.
+ int64_t now = GetTime();
+ std::string newFilename = strprintf("wallet.%d.bak", now);
+
+ int result = dbenv.dbenv->dbrename(NULL, filename.c_str(), NULL,
+ newFilename.c_str(), DB_AUTO_COMMIT);
+ if (result == 0)
+ LogPrintf("Renamed %s to %s\n", filename, newFilename);
+ else
+ {
+ LogPrintf("Failed to rename %s to %s\n", filename, newFilename);
+ return false;
+ }
+
+ std::vector<CDBEnv::KeyValPair> salvagedData;
+ bool allOK = dbenv.Salvage(newFilename, true, salvagedData);
+ if (salvagedData.empty())
+ {
+ LogPrintf("Salvage(aggressive) found no records in %s.\n", newFilename);
+ return false;
+ }
+ LogPrintf("Salvage(aggressive) found %u records\n", salvagedData.size());
+
+ bool fSuccess = allOK;
+ boost::scoped_ptr<Db> pdbCopy(new Db(dbenv.dbenv, 0));
+ int ret = pdbCopy->open(NULL, // Txn pointer
+ filename.c_str(), // Filename
+ "main", // Logical db name
+ DB_BTREE, // Database type
+ DB_CREATE, // Flags
+ 0);
+ if (ret > 0)
+ {
+ LogPrintf("Cannot create database file %s\n", filename);
+ return false;
+ }
+ CWallet dummyWallet;
+ CWalletScanState wss;
+
+ DbTxn* ptxn = dbenv.TxnBegin();
+ BOOST_FOREACH(CDBEnv::KeyValPair& row, salvagedData)
+ {
+ if (fOnlyKeys)
+ {
+ CDataStream ssKey(row.first, SER_DISK, CLIENT_VERSION);
+ CDataStream ssValue(row.second, SER_DISK, CLIENT_VERSION);
+ string strType, strErr;
+ bool fReadOK = ReadKeyValue(&dummyWallet, ssKey, ssValue,
+ wss, strType, strErr);
+ if (!IsKeyType(strType))
+ continue;
+ if (!fReadOK)
+ {
+ LogPrintf("WARNING: CWalletDB::Recover skipping %s: %s\n", strType, strErr);
+ continue;
+ }
+ }
+ Dbt datKey(&row.first[0], row.first.size());
+ Dbt datValue(&row.second[0], row.second.size());
+ int ret2 = pdbCopy->put(ptxn, &datKey, &datValue, DB_NOOVERWRITE);
+ if (ret2 > 0)
+ fSuccess = false;
+ }
+ ptxn->commit(0);
+ pdbCopy->close(0);
+
+ return fSuccess;
+}
+
+bool CWalletDB::Recover(CDBEnv& dbenv, std::string filename)
+{
+ return CWalletDB::Recover(dbenv, filename, false);
+}
+
+bool CWalletDB::WriteDestData(const std::string &address, const std::string &key, const std::string &value)
+{
+ nWalletDBUpdated++;
+ return Write(std::make_pair(std::string("destdata"), std::make_pair(address, key)), value);
+}
+
+bool CWalletDB::EraseDestData(const std::string &address, const std::string &key)
+{
+ nWalletDBUpdated++;
+ return Erase(std::make_pair(std::string("destdata"), std::make_pair(address, key)));
+}