+
−// Copyright (c) 2009-2011 Satoshi Nakamoto & Bitcoin developers
+
−// Distributed under the MIT/X11 software license, see the accompanying
+
−// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+
−
+
−#include "headers.h"
+
−#include "db.h"
+
−#include "cryptopp/sha.h"
+
−#include "crypter.h"
+
−
+
−using namespace std;
+
−
+
−
+
−//////////////////////////////////////////////////////////////////////////////
+
−//
+
−// mapWallet
+
−//
+
−
+
−bool CWallet::AddKey(const CKey& key)
+
−{
+
−    if (!CCryptoKeyStore::AddKey(key))
+
−        return false;
+
−    if (!fFileBacked)
+
−        return true;
+
−    if (!IsCrypted())
+
−        return CWalletDB(strWalletFile).WriteKey(key.GetPubKey(), key.GetPrivKey());
+
−    return true;
+
−}
+
−
+
−bool CWallet::AddCryptedKey(const vector<unsigned char> &vchPubKey, const vector<unsigned char> &vchCryptedSecret)
+
−{
+
−    if (!CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret))
+
−        return false;
+
−    if (!fFileBacked)
+
−        return true;
+
−    CRITICAL_BLOCK(cs_pwalletdbEncryption)
+
−    {
+
−        if (pwalletdbEncryption)
+
−            return pwalletdbEncryption->WriteCryptedKey(vchPubKey, vchCryptedSecret);
+
−        else
+
−            return CWalletDB(strWalletFile).WriteCryptedKey(vchPubKey, vchCryptedSecret);
+
−    }
+
−}
+
−
+
−bool CWallet::Unlock(const string& strWalletPassphrase)
+
−{
+
−    CRITICAL_BLOCK(cs_vMasterKey)
+
−    {
+
−        if (!IsLocked())
+
−            return false;
+
−
+
−        CCrypter crypter;
+
−        CKeyingMaterial vMasterKey;
+
−
+
−        BOOST_FOREACH(const MasterKeyMap::value_type& pMasterKey, mapMasterKeys)
+
−        {
+
−            if(!crypter.SetKeyFromPassphrase(strWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
+
−                return false;
+
−            if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
+
−                return false;
+
−            if (CCryptoKeyStore::Unlock(vMasterKey))
+
−                return true;
+
−        }
+
−    }
+
−    return false;
+
−}
+
−
+
−bool CWallet::ChangeWalletPassphrase(const string& strOldWalletPassphrase, const string& strNewWalletPassphrase)
+
−{
+
−    CRITICAL_BLOCK(cs_vMasterKey)
+
−    {
+
−        bool fWasLocked = IsLocked();
+
−
+
−        Lock();
+
−
+
−        CCrypter crypter;
+
−        CKeyingMaterial vMasterKey;
+
−        BOOST_FOREACH(MasterKeyMap::value_type& pMasterKey, mapMasterKeys)
+
−        {
+
−            if(!crypter.SetKeyFromPassphrase(strOldWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
+
−                return false;
+
−            if(!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
+
−                return false;
+
−            if (CCryptoKeyStore::Unlock(vMasterKey))
+
−            {
+
−                int64 nStartTime = GetTimeMillis();
+
−                crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
+
−                pMasterKey.second.nDeriveIterations = pMasterKey.second.nDeriveIterations * (100 / ((double)(GetTimeMillis() - nStartTime)));
+
−
+
−                nStartTime = GetTimeMillis();
+
−                crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
+
−                pMasterKey.second.nDeriveIterations = (pMasterKey.second.nDeriveIterations + pMasterKey.second.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime))) / 2;
+
−
+
−                if (pMasterKey.second.nDeriveIterations < 25000)
+
−                    pMasterKey.second.nDeriveIterations = 25000;
+
−
+
−                printf("Wallet passphrase changed to an nDeriveIterations of %i\n", pMasterKey.second.nDeriveIterations);
+
−
+
−                if (!crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
+
−                    return false;
+
−                if (!crypter.Encrypt(vMasterKey, pMasterKey.second.vchCryptedKey))
+
−                    return false;
+
−                CWalletDB(strWalletFile).WriteMasterKey(pMasterKey.first, pMasterKey.second);
+
−                if (fWasLocked)
+
−                    Lock();
+
−                return true;
+
−            }
+
−        }
+
−    }
+
−    return false;
+
−}
+
−
+
−
+
−// This class implements an addrIncoming entry that causes pre-0.4
+
−// clients to crash on startup if reading a private-key-encrypted wallet.
+
−class CCorruptAddress
+
−{
+
−public:
+
−    IMPLEMENT_SERIALIZE
+
−    (
+
−        if (nType & SER_DISK)
+
−            READWRITE(nVersion);
+
−    )
+
−};
+
−
+
−bool CWallet::EncryptWallet(const string& strWalletPassphrase)
+
−{
+
−    CRITICAL_BLOCK(cs_KeyStore)
+
−    CRITICAL_BLOCK(cs_vMasterKey)
+
−    CRITICAL_BLOCK(cs_pwalletdbEncryption)
+
−    {
+
−        if (IsCrypted())
+
−            return false;
+
−
+
−        CKeyingMaterial vMasterKey;
+
−        RandAddSeedPerfmon();
+
−
+
−        vMasterKey.resize(WALLET_CRYPTO_KEY_SIZE);
+
−        RAND_bytes(&vMasterKey[0], WALLET_CRYPTO_KEY_SIZE);
+
−
+
−        CMasterKey kMasterKey;
+
−
+
−        RandAddSeedPerfmon();
+
−        kMasterKey.vchSalt.resize(WALLET_CRYPTO_SALT_SIZE);
+
−        RAND_bytes(&kMasterKey.vchSalt[0], WALLET_CRYPTO_SALT_SIZE);
+
−
+
−        CCrypter crypter;
+
−        int64 nStartTime = GetTimeMillis();
+
−        crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, 25000, kMasterKey.nDerivationMethod);
+
−        kMasterKey.nDeriveIterations = 2500000 / ((double)(GetTimeMillis() - nStartTime));
+
−
+
−        nStartTime = GetTimeMillis();
+
−        crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod);
+
−        kMasterKey.nDeriveIterations = (kMasterKey.nDeriveIterations + kMasterKey.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime))) / 2;
+
−
+
−        if (kMasterKey.nDeriveIterations < 25000)
+
−            kMasterKey.nDeriveIterations = 25000;
+
−
+
−        printf("Encrypting Wallet with an nDeriveIterations of %i\n", kMasterKey.nDeriveIterations);
+
−
+
−        if (!crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod))
+
−            return false;
+
−        if (!crypter.Encrypt(vMasterKey, kMasterKey.vchCryptedKey))
+
−            return false;
+
−
+
−        mapMasterKeys[++nMasterKeyMaxID] = kMasterKey;
+
−        if (fFileBacked)
+
−        {
+
−            pwalletdbEncryption = new CWalletDB(strWalletFile);
+
−            pwalletdbEncryption->TxnBegin();
+
−            pwalletdbEncryption->WriteMasterKey(nMasterKeyMaxID, kMasterKey);
+
−        }
+
−
+
−        if (!EncryptKeys(vMasterKey))
+
−        {
+
−            if (fFileBacked)
+
−                pwalletdbEncryption->TxnAbort();
+
−            exit(1); //We now probably have half of our keys encrypted in memory, and half not...die and let the user reload their unencrypted wallet.
+
−        }
+
−
+
−        if (fFileBacked)
+
−        {
+
−            CCorruptAddress corruptAddress;
+
−            pwalletdbEncryption->WriteSetting("addrIncoming", corruptAddress);
+
−            if (!pwalletdbEncryption->TxnCommit())
+
−                exit(1); //We now have keys encrypted in memory, but no on disk...die to avoid confusion and let the user reload their unencrypted wallet.
+
−
+
−            pwalletdbEncryption->Close();
+
−            pwalletdbEncryption = NULL;
+
−        }
+
−
+
−        Lock();
+
−    }
+
−    return true;
+
−}
+
−
+
−void CWallet::WalletUpdateSpent(const CTransaction &tx)
+
−{
+
−    // Anytime a signature is successfully verified, it's proof the outpoint is spent.
+
−    // Update the wallet spent flag if it doesn't know due to wallet.dat being
+
−    // restored from backup or the user making copies of wallet.dat.
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    {
+
−        BOOST_FOREACH(const CTxIn& txin, tx.vin)
+
−        {
+
−            map<uint256, CWalletTx>::iterator mi = mapWallet.find(txin.prevout.hash);
+
−            if (mi != mapWallet.end())
+
−            {
+
−                CWalletTx& wtx = (*mi).second;
+
−                if (!wtx.IsSpent(txin.prevout.n) && IsMine(wtx.vout[txin.prevout.n]))
+
−                {
+
−                    printf("WalletUpdateSpent found spent coin %sbc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
+
−                    wtx.MarkSpent(txin.prevout.n);
+
−                    wtx.WriteToDisk();
+
−                    vWalletUpdated.push_back(txin.prevout.hash);
+
−                }
+
−            }
+
−        }
+
−    }
+
−}
+
−
+
−bool CWallet::AddToWallet(const CWalletTx& wtxIn)
+
−{
+
−    uint256 hash = wtxIn.GetHash();
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    {
+
−        // Inserts only if not already there, returns tx inserted or tx found
+
−        pair<map<uint256, CWalletTx>::iterator, bool> ret = mapWallet.insert(make_pair(hash, wtxIn));
+
−        CWalletTx& wtx = (*ret.first).second;
+
−        wtx.pwallet = this;
+
−        bool fInsertedNew = ret.second;
+
−        if (fInsertedNew)
+
−            wtx.nTimeReceived = GetAdjustedTime();
+
−
+
−        bool fUpdated = false;
+
−        if (!fInsertedNew)
+
−        {
+
−            // Merge
+
−            if (wtxIn.hashBlock != 0 && wtxIn.hashBlock != wtx.hashBlock)
+
−            {
+
−                wtx.hashBlock = wtxIn.hashBlock;
+
−                fUpdated = true;
+
−            }
+
−            if (wtxIn.nIndex != -1 && (wtxIn.vMerkleBranch != wtx.vMerkleBranch || wtxIn.nIndex != wtx.nIndex))
+
−            {
+
−                wtx.vMerkleBranch = wtxIn.vMerkleBranch;
+
−                wtx.nIndex = wtxIn.nIndex;
+
−                fUpdated = true;
+
−            }
+
−            if (wtxIn.fFromMe && wtxIn.fFromMe != wtx.fFromMe)
+
−            {
+
−                wtx.fFromMe = wtxIn.fFromMe;
+
−                fUpdated = true;
+
−            }
+
−            fUpdated |= wtx.UpdateSpent(wtxIn.vfSpent);
+
−        }
+
−
+
−        //// debug print
+
−        printf("AddToWallet %s  %s%s\n", wtxIn.GetHash().ToString().substr(0,10).c_str(), (fInsertedNew ? "new" : ""), (fUpdated ? "update" : ""));
+
−
+
−        // Write to disk
+
−        if (fInsertedNew || fUpdated)
+
−            if (!wtx.WriteToDisk())
+
−                return false;
+
−#ifndef QT_GUI
+
−        // If default receiving address gets used, replace it with a new one
+
−        CScript scriptDefaultKey;
+
−        scriptDefaultKey.SetBitcoinAddress(vchDefaultKey);
+
−        BOOST_FOREACH(const CTxOut& txout, wtx.vout)
+
−        {
+
−            if (txout.scriptPubKey == scriptDefaultKey)
+
−            {
+
−                SetDefaultKey(GetOrReuseKeyFromPool());
+
−                SetAddressBookName(CBitcoinAddress(vchDefaultKey), "");
+
−            }
+
−        }
+
−#endif
+
−        // Notify UI
+
−        vWalletUpdated.push_back(hash);
+
−
+
−        // since AddToWallet is called directly for self-originating transactions, check for consumption of own coins
+
−        WalletUpdateSpent(wtx);
+
−    }
+
−
+
−    // Refresh UI
+
−    MainFrameRepaint();
+
−    return true;
+
−}
+
−
+
−bool CWallet::AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pblock, bool fUpdate)
+
−{
+
−    uint256 hash = tx.GetHash();
+
−    bool fExisted = mapWallet.count(hash);
+
−    if (fExisted && !fUpdate) return false;
+
−    if (fExisted || IsMine(tx) || IsFromMe(tx))
+
−    {
+
−        CWalletTx wtx(this,tx);
+
−        // Get merkle branch if transaction was found in a block
+
−        if (pblock)
+
−            wtx.SetMerkleBranch(pblock);
+
−        return AddToWallet(wtx);
+
−    }
+
−    else
+
−        WalletUpdateSpent(tx);
+
−    return false;
+
−}
+
−
+
−bool CWallet::EraseFromWallet(uint256 hash)
+
−{
+
−    if (!fFileBacked)
+
−        return false;
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    {
+
−        if (mapWallet.erase(hash))
+
−            CWalletDB(strWalletFile).EraseTx(hash);
+
−    }
+
−    return true;
+
−}
+
−
+
−
+
−bool CWallet::IsMine(const CTxIn &txin) const
+
−{
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    {
+
−        map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
+
−        if (mi != mapWallet.end())
+
−        {
+
−            const CWalletTx& prev = (*mi).second;
+
−            if (txin.prevout.n < prev.vout.size())
+
−                if (IsMine(prev.vout[txin.prevout.n]))
+
−                    return true;
+
−        }
+
−    }
+
−    return false;
+
−}
+
−
+
−int64 CWallet::GetDebit(const CTxIn &txin) const
+
−{
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    {
+
−        map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
+
−        if (mi != mapWallet.end())
+
−        {
+
−            const CWalletTx& prev = (*mi).second;
+
−            if (txin.prevout.n < prev.vout.size())
+
−                if (IsMine(prev.vout[txin.prevout.n]))
+
−                    return prev.vout[txin.prevout.n].nValue;
+
−        }
+
−    }
+
−    return 0;
+
−}
+
−
+
−int64 CWalletTx::GetTxTime() const
+
−{
+
−    if (!fTimeReceivedIsTxTime && hashBlock != 0)
+
−    {
+
−        // If we did not receive the transaction directly, we rely on the block's
+
−        // time to figure out when it happened.  We use the median over a range
+
−        // of blocks to try to filter out inaccurate block times.
+
−        map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
+
−        if (mi != mapBlockIndex.end())
+
−        {
+
−            CBlockIndex* pindex = (*mi).second;
+
−            if (pindex)
+
−                return pindex->GetMedianTime();
+
−        }
+
−    }
+
−    return nTimeReceived;
+
−}
+
−
+
−int CWalletTx::GetRequestCount() const
+
−{
+
−    // Returns -1 if it wasn't being tracked
+
−    int nRequests = -1;
+
−    CRITICAL_BLOCK(pwallet->cs_mapRequestCount)
+
−    {
+
−        if (IsCoinBase())
+
−        {
+
−            // Generated block
+
−            if (hashBlock != 0)
+
−            {
+
−                map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
+
−                if (mi != pwallet->mapRequestCount.end())
+
−                    nRequests = (*mi).second;
+
−            }
+
−        }
+
−        else
+
−        {
+
−            // Did anyone request this transaction?
+
−            map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(GetHash());
+
−            if (mi != pwallet->mapRequestCount.end())
+
−            {
+
−                nRequests = (*mi).second;
+
−
+
−                // How about the block it's in?
+
−                if (nRequests == 0 && hashBlock != 0)
+
−                {
+
−                    map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
+
−                    if (mi != pwallet->mapRequestCount.end())
+
−                        nRequests = (*mi).second;
+
−                    else
+
−                        nRequests = 1; // If it's in someone else's block it must have got out
+
−                }
+
−            }
+
−        }
+
−    }
+
−    return nRequests;
+
−}
+
−
+
−void CWalletTx::GetAmounts(int64& nGeneratedImmature, int64& nGeneratedMature, list<pair<CBitcoinAddress, int64> >& listReceived,
+
−                           list<pair<CBitcoinAddress, int64> >& listSent, int64& nFee, string& strSentAccount) const
+
−{
+
−    nGeneratedImmature = nGeneratedMature = nFee = 0;
+
−    listReceived.clear();
+
−    listSent.clear();
+
−    strSentAccount = strFromAccount;
+
−
+
−    if (IsCoinBase())
+
−    {
+
−        if (GetBlocksToMaturity() > 0)
+
−            nGeneratedImmature = pwallet->GetCredit(*this);
+
−        else
+
−            nGeneratedMature = GetCredit();
+
−        return;
+
−    }
+
−
+
−    // Compute fee:
+
−    int64 nDebit = GetDebit();
+
−    if (nDebit > 0) // debit>0 means we signed/sent this transaction
+
−    {
+
−        int64 nValueOut = GetValueOut();
+
−        nFee = nDebit - nValueOut;
+
−    }
+
−
+
−    // Sent/received.  Standard client will never generate a send-to-multiple-recipients,
+
−    // but non-standard clients might (so return a list of address/amount pairs)
+
−    BOOST_FOREACH(const CTxOut& txout, vout)
+
−    {
+
−        CBitcoinAddress address;
+
−        vector<unsigned char> vchPubKey;
+
−        if (!ExtractAddress(txout.scriptPubKey, NULL, address))
+
−        {
+
−            printf("CWalletTx::GetAmounts: Unknown transaction type found, txid %s\n",
+
−                   this->GetHash().ToString().c_str());
+
−            address = " unknown ";
+
−        }
+
−
+
−        // Don't report 'change' txouts
+
−        if (nDebit > 0 && pwallet->IsChange(txout))
+
−            continue;
+
−
+
−        if (nDebit > 0)
+
−            listSent.push_back(make_pair(address, txout.nValue));
+
−
+
−        if (pwallet->IsMine(txout))
+
−            listReceived.push_back(make_pair(address, txout.nValue));
+
−    }
+
−
+
−}
+
−
+
−void CWalletTx::GetAccountAmounts(const string& strAccount, int64& nGenerated, int64& nReceived, 
+
−                                  int64& nSent, int64& nFee) const
+
−{
+
−    nGenerated = nReceived = nSent = nFee = 0;
+
−
+
−    int64 allGeneratedImmature, allGeneratedMature, allFee;
+
−    allGeneratedImmature = allGeneratedMature = allFee = 0;
+
−    string strSentAccount;
+
−    list<pair<CBitcoinAddress, int64> > listReceived;
+
−    list<pair<CBitcoinAddress, int64> > listSent;
+
−    GetAmounts(allGeneratedImmature, allGeneratedMature, listReceived, listSent, allFee, strSentAccount);
+
−
+
−    if (strAccount == "")
+
−        nGenerated = allGeneratedMature;
+
−    if (strAccount == strSentAccount)
+
−    {
+
−        BOOST_FOREACH(const PAIRTYPE(CBitcoinAddress,int64)& s, listSent)
+
−            nSent += s.second;
+
−        nFee = allFee;
+
−    }
+
−    CRITICAL_BLOCK(pwallet->cs_mapAddressBook)
+
−    {
+
−        BOOST_FOREACH(const PAIRTYPE(CBitcoinAddress,int64)& r, listReceived)
+
−        {
+
−            if (pwallet->mapAddressBook.count(r.first))
+
−            {
+
−                map<CBitcoinAddress, string>::const_iterator mi = pwallet->mapAddressBook.find(r.first);
+
−                if (mi != pwallet->mapAddressBook.end() && (*mi).second == strAccount)
+
−                    nReceived += r.second;
+
−            }
+
−            else if (strAccount.empty())
+
−            {
+
−                nReceived += r.second;
+
−            }
+
−        }
+
−    }
+
−}
+
−
+
−void CWalletTx::AddSupportingTransactions(CTxDB& txdb)
+
−{
+
−    vtxPrev.clear();
+
−
+
−    const int COPY_DEPTH = 3;
+
−    if (SetMerkleBranch() < COPY_DEPTH)
+
−    {
+
−        vector<uint256> vWorkQueue;
+
−        BOOST_FOREACH(const CTxIn& txin, vin)
+
−            vWorkQueue.push_back(txin.prevout.hash);
+
−
+
−        // This critsect is OK because txdb is already open
+
−        CRITICAL_BLOCK(pwallet->cs_mapWallet)
+
−        {
+
−            map<uint256, const CMerkleTx*> mapWalletPrev;
+
−            set<uint256> setAlreadyDone;
+
−            for (int i = 0; i < vWorkQueue.size(); i++)
+
−            {
+
−                uint256 hash = vWorkQueue[i];
+
−                if (setAlreadyDone.count(hash))
+
−                    continue;
+
−                setAlreadyDone.insert(hash);
+
−
+
−                CMerkleTx tx;
+
−                map<uint256, CWalletTx>::const_iterator mi = pwallet->mapWallet.find(hash);
+
−                if (mi != pwallet->mapWallet.end())
+
−                {
+
−                    tx = (*mi).second;
+
−                    BOOST_FOREACH(const CMerkleTx& txWalletPrev, (*mi).second.vtxPrev)
+
−                        mapWalletPrev[txWalletPrev.GetHash()] = &txWalletPrev;
+
−                }
+
−                else if (mapWalletPrev.count(hash))
+
−                {
+
−                    tx = *mapWalletPrev[hash];
+
−                }
+
−                else if (!fClient && txdb.ReadDiskTx(hash, tx))
+
−                {
+
−                    ;
+
−                }
+
−                else
+
−                {
+
−                    printf("ERROR: AddSupportingTransactions() : unsupported transaction\n");
+
−                    continue;
+
−                }
+
−
+
−                int nDepth = tx.SetMerkleBranch();
+
−                vtxPrev.push_back(tx);
+
−
+
−                if (nDepth < COPY_DEPTH)
+
−                    BOOST_FOREACH(const CTxIn& txin, tx.vin)
+
−                        vWorkQueue.push_back(txin.prevout.hash);
+
−            }
+
−        }
+
−    }
+
−
+
−    reverse(vtxPrev.begin(), vtxPrev.end());
+
−}
+
−
+
−bool CWalletTx::WriteToDisk()
+
−{
+
−    return CWalletDB(pwallet->strWalletFile).WriteTx(GetHash(), *this);
+
−}
+
−
+
−int CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate)
+
−{
+
−    int ret = 0;
+
−
+
−    CBlockIndex* pindex = pindexStart;
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    {
+
−        while (pindex)
+
−        {
+
−            CBlock block;
+
−            block.ReadFromDisk(pindex, true);
+
−            BOOST_FOREACH(CTransaction& tx, block.vtx)
+
−            {
+
−                if (AddToWalletIfInvolvingMe(tx, &block, fUpdate))
+
−                    ret++;
+
−            }
+
−            pindex = pindex->pnext;
+
−        }
+
−    }
+
−    return ret;
+
−}
+
−
+
−void CWallet::ReacceptWalletTransactions()
+
−{
+
−    CTxDB txdb("r");
+
−    bool fRepeat = true;
+
−    while (fRepeat) CRITICAL_BLOCK(cs_mapWallet)
+
−    {
+
−        fRepeat = false;
+
−        vector<CDiskTxPos> vMissingTx;
+
−        BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
+
−        {
+
−            CWalletTx& wtx = item.second;
+
−            if (wtx.IsCoinBase() && wtx.IsSpent(0))
+
−                continue;
+
−
+
−            CTxIndex txindex;
+
−            bool fUpdated = false;
+
−            if (txdb.ReadTxIndex(wtx.GetHash(), txindex))
+
−            {
+
−                // Update fSpent if a tx got spent somewhere else by a copy of wallet.dat
+
−                if (txindex.vSpent.size() != wtx.vout.size())
+
−                {
+
−                    printf("ERROR: ReacceptWalletTransactions() : txindex.vSpent.size() %d != wtx.vout.size() %d\n", txindex.vSpent.size(), wtx.vout.size());
+
−                    continue;
+
−                }
+
−                for (int i = 0; i < txindex.vSpent.size(); i++)
+
−                {
+
−                    if (wtx.IsSpent(i))
+
−                        continue;
+
−                    if (!txindex.vSpent[i].IsNull() && IsMine(wtx.vout[i]))
+
−                    {
+
−                        wtx.MarkSpent(i);
+
−                        fUpdated = true;
+
−                        vMissingTx.push_back(txindex.vSpent[i]);
+
−                    }
+
−                }
+
−                if (fUpdated)
+
−                {
+
−                    printf("ReacceptWalletTransactions found spent coin %sbc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
+
−                    wtx.MarkDirty();
+
−                    wtx.WriteToDisk();
+
−                }
+
−            }
+
−            else
+
−            {
+
−                // Reaccept any txes of ours that aren't already in a block
+
−                if (!wtx.IsCoinBase())
+
−                    wtx.AcceptWalletTransaction(txdb, false);
+
−            }
+
−        }
+
−        if (!vMissingTx.empty())
+
−        {
+
−            // TODO: optimize this to scan just part of the block chain?
+
−            if (ScanForWalletTransactions(pindexGenesisBlock))
+
−                fRepeat = true;  // Found missing transactions: re-do Reaccept.
+
−        }
+
−    }
+
−}
+
−
+
−void CWalletTx::RelayWalletTransaction(CTxDB& txdb)
+
−{
+
−    BOOST_FOREACH(const CMerkleTx& tx, vtxPrev)
+
−    {
+
−        if (!tx.IsCoinBase())
+
−        {
+
−            uint256 hash = tx.GetHash();
+
−            if (!txdb.ContainsTx(hash))
+
−                RelayMessage(CInv(MSG_TX, hash), (CTransaction)tx);
+
−        }
+
−    }
+
−    if (!IsCoinBase())
+
−    {
+
−        uint256 hash = GetHash();
+
−        if (!txdb.ContainsTx(hash))
+
−        {
+
−            printf("Relaying wtx %s\n", hash.ToString().substr(0,10).c_str());
+
−            RelayMessage(CInv(MSG_TX, hash), (CTransaction)*this);
+
−        }
+
−    }
+
−}
+
−
+
−void CWalletTx::RelayWalletTransaction()
+
−{
+
−   CTxDB txdb("r");
+
−   RelayWalletTransaction(txdb);
+
−}
+
−
+
−void CWallet::ResendWalletTransactions()
+
−{
+
−    // Do this infrequently and randomly to avoid giving away
+
−    // that these are our transactions.
+
−    static int64 nNextTime;
+
−    if (GetTime() < nNextTime)
+
−        return;
+
−    bool fFirst = (nNextTime == 0);
+
−    nNextTime = GetTime() + GetRand(30 * 60);
+
−    if (fFirst)
+
−        return;
+
−
+
−    // Only do it if there's been a new block since last time
+
−    static int64 nLastTime;
+
−    if (nTimeBestReceived < nLastTime)
+
−        return;
+
−    nLastTime = GetTime();
+
−
+
−    // Rebroadcast any of our txes that aren't in a block yet
+
−    printf("ResendWalletTransactions()\n");
+
−    CTxDB txdb("r");
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    {
+
−        // Sort them in chronological order
+
−        multimap<unsigned int, CWalletTx*> mapSorted;
+
−        BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
+
−        {
+
−            CWalletTx& wtx = item.second;
+
−            // Don't rebroadcast until it's had plenty of time that
+
−            // it should have gotten in already by now.
+
−            if (nTimeBestReceived - (int64)wtx.nTimeReceived > 5 * 60)
+
−                mapSorted.insert(make_pair(wtx.nTimeReceived, &wtx));
+
−        }
+
−        BOOST_FOREACH(PAIRTYPE(const unsigned int, CWalletTx*)& item, mapSorted)
+
−        {
+
−            CWalletTx& wtx = *item.second;
+
−            wtx.RelayWalletTransaction(txdb);
+
−        }
+
−    }
+
−}
+
−
+
−
+
−
+
−
+
−
+
−
+
−//////////////////////////////////////////////////////////////////////////////
+
−//
+
−// Actions
+
−//
+
−
+
−
+
−int64 CWallet::GetBalance() const
+
−{
+
−    int64 nTotal = 0;
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    {
+
−        for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+
−        {
+
−            const CWalletTx* pcoin = &(*it).second;
+
−            if (!pcoin->IsFinal() || !pcoin->IsConfirmed())
+
−                continue;
+
−            nTotal += pcoin->GetAvailableCredit();
+
−        }
+
−    }
+
−
+
−    return nTotal;
+
−}
+
−
+
−int64 CWallet::GetUnconfirmedBalance() const
+
−{
+
−    int64 nTotal = 0;
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    {
+
−        for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+
−        {
+
−            const CWalletTx* pcoin = &(*it).second;
+
−            if (pcoin->IsFinal() && pcoin->IsConfirmed())
+
−                continue;
+
−            nTotal += pcoin->GetAvailableCredit();
+
−        }
+
−    }
+
−    return nTotal;
+
−}
+
−
+
−bool CWallet::SelectCoinsMinConf(int64 nTargetValue, int nConfMine, int nConfTheirs, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const
+
−{
+
−    setCoinsRet.clear();
+
−    nValueRet = 0;
+
−
+
−    // List of values less than target
+
−    pair<int64, pair<const CWalletTx*,unsigned int> > coinLowestLarger;
+
−    coinLowestLarger.first = INT64_MAX;
+
−    coinLowestLarger.second.first = NULL;
+
−    vector<pair<int64, pair<const CWalletTx*,unsigned int> > > vValue;
+
−    int64 nTotalLower = 0;
+
−
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    {
+
−       vector<const CWalletTx*> vCoins;
+
−       vCoins.reserve(mapWallet.size());
+
−       for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+
−           vCoins.push_back(&(*it).second);
+
−       random_shuffle(vCoins.begin(), vCoins.end(), GetRandInt);
+
−
+
−       BOOST_FOREACH(const CWalletTx* pcoin, vCoins)
+
−       {
+
−            if (!pcoin->IsFinal() || !pcoin->IsConfirmed())
+
−                continue;
+
−
+
−            if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0)
+
−                continue;
+
−
+
−            int nDepth = pcoin->GetDepthInMainChain();
+
−            if (nDepth < (pcoin->IsFromMe() ? nConfMine : nConfTheirs))
+
−                continue;
+
−
+
−            for (int i = 0; i < pcoin->vout.size(); i++)
+
−            {
+
−                if (pcoin->IsSpent(i) || !IsMine(pcoin->vout[i]))
+
−                    continue;
+
−
+
−                int64 n = pcoin->vout[i].nValue;
+
−
+
−                if (n <= 0)
+
−                    continue;
+
−
+
−                pair<int64,pair<const CWalletTx*,unsigned int> > coin = make_pair(n,make_pair(pcoin,i));
+
−
+
−                if (n == nTargetValue)
+
−                {
+
−                    setCoinsRet.insert(coin.second);
+
−                    nValueRet += coin.first;
+
−                    return true;
+
−                }
+
−                else if (n < nTargetValue + CENT)
+
−                {
+
−                    vValue.push_back(coin);
+
−                    nTotalLower += n;
+
−                }
+
−                else if (n < coinLowestLarger.first)
+
−                {
+
−                    coinLowestLarger = coin;
+
−                }
+
−            }
+
−        }
+
−    }
+
−
+
−    if (nTotalLower == nTargetValue || nTotalLower == nTargetValue + CENT)
+
−    {
+
−        for (int i = 0; i < vValue.size(); ++i)
+
−        {
+
−            setCoinsRet.insert(vValue[i].second);
+
−            nValueRet += vValue[i].first;
+
−        }
+
−        return true;
+
−    }
+
−
+
−    if (nTotalLower < nTargetValue + (coinLowestLarger.second.first ? CENT : 0))
+
−    {
+
−        if (coinLowestLarger.second.first == NULL)
+
−            return false;
+
−        setCoinsRet.insert(coinLowestLarger.second);
+
−        nValueRet += coinLowestLarger.first;
+
−        return true;
+
−    }
+
−
+
−    if (nTotalLower >= nTargetValue + CENT)
+
−        nTargetValue += CENT;
+
−
+
−    // Solve subset sum by stochastic approximation
+
−    sort(vValue.rbegin(), vValue.rend());
+
−    vector<char> vfIncluded;
+
−    vector<char> vfBest(vValue.size(), true);
+
−    int64 nBest = nTotalLower;
+
−
+
−    for (int nRep = 0; nRep < 1000 && nBest != nTargetValue; nRep++)
+
−    {
+
−        vfIncluded.assign(vValue.size(), false);
+
−        int64 nTotal = 0;
+
−        bool fReachedTarget = false;
+
−        for (int nPass = 0; nPass < 2 && !fReachedTarget; nPass++)
+
−        {
+
−            for (int i = 0; i < vValue.size(); i++)
+
−            {
+
−                if (nPass == 0 ? rand() % 2 : !vfIncluded[i])
+
−                {
+
−                    nTotal += vValue[i].first;
+
−                    vfIncluded[i] = true;
+
−                    if (nTotal >= nTargetValue)
+
−                    {
+
−                        fReachedTarget = true;
+
−                        if (nTotal < nBest)
+
−                        {
+
−                            nBest = nTotal;
+
−                            vfBest = vfIncluded;
+
−                        }
+
−                        nTotal -= vValue[i].first;
+
−                        vfIncluded[i] = false;
+
−                    }
+
−                }
+
−            }
+
−        }
+
−    }
+
−
+
−    // If the next larger is still closer, return it
+
−    if (coinLowestLarger.second.first && coinLowestLarger.first - nTargetValue <= nBest - nTargetValue)
+
−    {
+
−        setCoinsRet.insert(coinLowestLarger.second);
+
−        nValueRet += coinLowestLarger.first;
+
−    }
+
−    else {
+
−        for (int i = 0; i < vValue.size(); i++)
+
−            if (vfBest[i])
+
−            {
+
−                setCoinsRet.insert(vValue[i].second);
+
−                nValueRet += vValue[i].first;
+
−            }
+
−
+
−        //// debug print
+
−        printf("SelectCoins() best subset: ");
+
−        for (int i = 0; i < vValue.size(); i++)
+
−            if (vfBest[i])
+
−                printf("%s ", FormatMoney(vValue[i].first).c_str());
+
−        printf("total %s\n", FormatMoney(nBest).c_str());
+
−    }
+
−
+
−    return true;
+
−}
+
−
+
−bool CWallet::SelectCoins(int64 nTargetValue, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const
+
−{
+
−    return (SelectCoinsMinConf(nTargetValue, 1, 6, setCoinsRet, nValueRet) ||
+
−            SelectCoinsMinConf(nTargetValue, 1, 1, setCoinsRet, nValueRet) ||
+
−            SelectCoinsMinConf(nTargetValue, 0, 1, setCoinsRet, nValueRet));
+
−}
+
−
+
−
+
−
+
−
+
−bool CWallet::CreateTransaction(const vector<pair<CScript, int64> >& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet)
+
−{
+
−    int64 nValue = 0;
+
−    BOOST_FOREACH (const PAIRTYPE(CScript, int64)& s, vecSend)
+
−    {
+
−        if (nValue < 0)
+
−            return false;
+
−        nValue += s.second;
+
−    }
+
−    if (vecSend.empty() || nValue < 0)
+
−        return false;
+
−
+
−    wtxNew.pwallet = this;
+
−
+
−    CRITICAL_BLOCK(cs_main)
+
−    {
+
−        // txdb must be opened before the mapWallet lock
+
−        CTxDB txdb("r");
+
−        CRITICAL_BLOCK(cs_mapWallet)
+
−        {
+
−            nFeeRet = nTransactionFee;
+
−            loop
+
−            {
+
−                wtxNew.vin.clear();
+
−                wtxNew.vout.clear();
+
−                wtxNew.fFromMe = true;
+
−
+
−                int64 nTotalValue = nValue + nFeeRet;
+
−                double dPriority = 0;
+
−                // vouts to the payees
+
−                BOOST_FOREACH (const PAIRTYPE(CScript, int64)& s, vecSend)
+
−                    wtxNew.vout.push_back(CTxOut(s.second, s.first));
+
−
+
−                // Choose coins to use
+
−                set<pair<const CWalletTx*,unsigned int> > setCoins;
+
−                int64 nValueIn = 0;
+
−                if (!SelectCoins(nTotalValue, setCoins, nValueIn))
+
−                    return false;
+
−                BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
+
−                {
+
−                    int64 nCredit = pcoin.first->vout[pcoin.second].nValue;
+
−                    dPriority += (double)nCredit * pcoin.first->GetDepthInMainChain();
+
−                }
+
−
+
−                int64 nChange = nValueIn - nValue - nFeeRet;
+
−                // if sub-cent change is required, the fee must be raised to at least MIN_TX_FEE
+
−                // or until nChange becomes zero
+
−                if (nFeeRet < MIN_TX_FEE && nChange > 0 && nChange < CENT)
+
−                {
+
−                    int64 nMoveToFee = min(nChange, MIN_TX_FEE - nFeeRet);
+
−                    nChange -= nMoveToFee;
+
−                    nFeeRet += nMoveToFee;
+
−                }
+
−
+
−                if (nChange > 0)
+
−                {
+
−                    // Note: We use a new key here to keep it from being obvious which side is the change.
+
−                    //  The drawback is that by not reusing a previous key, the change may be lost if a
+
−                    //  backup is restored, if the backup doesn't have the new private key for the change.
+
−                    //  If we reused the old key, it would be possible to add code to look for and
+
−                    //  rediscover unknown transactions that were written with keys of ours to recover
+
−                    //  post-backup change.
+
−
+
−                    // Reserve a new key pair from key pool
+
−                    vector<unsigned char> vchPubKey = reservekey.GetReservedKey();
+
−                    // assert(mapKeys.count(vchPubKey));
+
−
+
−                    // Fill a vout to ourself, using same address type as the payment
+
−                    CScript scriptChange;
+
−                    if (vecSend[0].first.GetBitcoinAddress().IsValid())
+
−                        scriptChange.SetBitcoinAddress(vchPubKey);
+
−                    else
+
−                        scriptChange << vchPubKey << OP_CHECKSIG;
+
−
+
−                    // Insert change txn at random position:
+
−                    vector<CTxOut>::iterator position = wtxNew.vout.begin()+GetRandInt(wtxNew.vout.size());
+
−                    wtxNew.vout.insert(position, CTxOut(nChange, scriptChange));
+
−                }
+
−                else
+
−                    reservekey.ReturnKey();
+
−
+
−                // Fill vin
+
−                BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
+
−                    wtxNew.vin.push_back(CTxIn(coin.first->GetHash(),coin.second));
+
−
+
−                // Sign
+
−                int nIn = 0;
+
−                BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
+
−                    if (!SignSignature(*this, *coin.first, wtxNew, nIn++))
+
−                        return false;
+
−
+
−                // Limit size
+
−                unsigned int nBytes = ::GetSerializeSize(*(CTransaction*)&wtxNew, SER_NETWORK);
+
−                if (nBytes >= MAX_BLOCK_SIZE_GEN/5)
+
−                    return false;
+
−                dPriority /= nBytes;
+
−
+
−                // Check that enough fee is included
+
−                int64 nPayFee = nTransactionFee * (1 + (int64)nBytes / 1000);
+
−                bool fAllowFree = CTransaction::AllowFree(dPriority);
+
−                int64 nMinFee = wtxNew.GetMinFee(1, fAllowFree);
+
−                if (nFeeRet < max(nPayFee, nMinFee))
+
−                {
+
−                    nFeeRet = max(nPayFee, nMinFee);
+
−                    continue;
+
−                }
+
−
+
−                // Fill vtxPrev by copying from previous transactions vtxPrev
+
−                wtxNew.AddSupportingTransactions(txdb);
+
−                wtxNew.fTimeReceivedIsTxTime = true;
+
−
+
−                break;
+
−            }
+
−        }
+
−    }
+
−    return true;
+
−}
+
−
+
−bool CWallet::CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet)
+
−{
+
−    vector< pair<CScript, int64> > vecSend;
+
−    vecSend.push_back(make_pair(scriptPubKey, nValue));
+
−    return CreateTransaction(vecSend, wtxNew, reservekey, nFeeRet);
+
−}
+
−
+
−// Call after CreateTransaction unless you want to abort
+
−bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey)
+
−{
+
−    CRITICAL_BLOCK(cs_main)
+
−    {
+
−        printf("CommitTransaction:\n%s", wtxNew.ToString().c_str());
+
−        CRITICAL_BLOCK(cs_mapWallet)
+
−        {
+
−            // This is only to keep the database open to defeat the auto-flush for the
+
−            // duration of this scope.  This is the only place where this optimization
+
−            // maybe makes sense; please don't do it anywhere else.
+
−            CWalletDB* pwalletdb = fFileBacked ? new CWalletDB(strWalletFile,"r") : NULL;
+
−
+
−            // Take key pair from key pool so it won't be used again
+
−            reservekey.KeepKey();
+
−
+
−            // Add tx to wallet, because if it has change it's also ours,
+
−            // otherwise just for transaction history.
+
−            AddToWallet(wtxNew);
+
−
+
−            // Mark old coins as spent
+
−            set<CWalletTx*> setCoins;
+
−            BOOST_FOREACH(const CTxIn& txin, wtxNew.vin)
+
−            {
+
−                CWalletTx &coin = mapWallet[txin.prevout.hash];
+
−                coin.pwallet = this;
+
−                coin.MarkSpent(txin.prevout.n);
+
−                coin.WriteToDisk();
+
−                vWalletUpdated.push_back(coin.GetHash());
+
−            }
+
−
+
−            if (fFileBacked)
+
−                delete pwalletdb;
+
−        }
+
−
+
−        // Track how many getdata requests our transaction gets
+
−        CRITICAL_BLOCK(cs_mapRequestCount)
+
−            mapRequestCount[wtxNew.GetHash()] = 0;
+
−
+
−        // Broadcast
+
−        if (!wtxNew.AcceptToMemoryPool())
+
−        {
+
−            // This must not fail. The transaction has already been signed and recorded.
+
−            printf("CommitTransaction() : Error: Transaction not valid");
+
−            return false;
+
−        }
+
−        wtxNew.RelayWalletTransaction();
+
−    }
+
−    MainFrameRepaint();
+
−    return true;
+
−}
+
−
+
−
+
−
+
−
+
−// requires cs_main lock
+
−string CWallet::SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee)
+
−{
+
−    CReserveKey reservekey(this);
+
−    int64 nFeeRequired;
+
−    CRITICAL_BLOCK(cs_vMasterKey)
+
−    {
+
−        if (IsLocked())
+
−        {
+
−            string strError = _("Error: Wallet locked, unable to create transaction  ");
+
−            printf("SendMoney() : %s", strError.c_str());
+
−            return strError;
+
−        }
+
−        if (!CreateTransaction(scriptPubKey, nValue, wtxNew, reservekey, nFeeRequired))
+
−        {
+
−            string strError;
+
−            if (nValue + nFeeRequired > GetBalance())
+
−                strError = strprintf(_("Error: This transaction requires a transaction fee of at least %s because of its amount, complexity, or use of recently received funds  "), FormatMoney(nFeeRequired).c_str());
+
−            else
+
−                strError = _("Error: Transaction creation failed  ");
+
−            printf("SendMoney() : %s", strError.c_str());
+
−            return strError;
+
−        }
+
−    }
+
−
+
−    if (fAskFee && !ThreadSafeAskFee(nFeeRequired, _("Sending..."), NULL))
+
−        return "ABORTED";
+
−
+
−    if (!CommitTransaction(wtxNew, reservekey))
+
−        return _("Error: The transaction was rejected.  This might happen if some of the coins in your wallet were already spent, such as if you used a copy of wallet.dat and coins were spent in the copy but not marked as spent here.");
+
−
+
−    MainFrameRepaint();
+
−    return "";
+
−}
+
−
+
−
+
−
+
−// requires cs_main lock
+
−string CWallet::SendMoneyToBitcoinAddress(const CBitcoinAddress& address, int64 nValue, CWalletTx& wtxNew, bool fAskFee)
+
−{
+
−    // Check amount
+
−    if (nValue <= 0)
+
−        return _("Invalid amount");
+
−    if (nValue + nTransactionFee > GetBalance())
+
−        return _("Insufficient funds");
+
−
+
−    // Parse bitcoin address
+
−    CScript scriptPubKey;
+
−    scriptPubKey.SetBitcoinAddress(address);
+
−
+
−    return SendMoney(scriptPubKey, nValue, wtxNew, fAskFee);
+
−}
+
−
+
−
+
−
+
−
+
−int CWallet::LoadWallet(bool& fFirstRunRet)
+
−{
+
−    if (!fFileBacked)
+
−        return false;
+
−    fFirstRunRet = false;
+
−    int nLoadWalletRet = CWalletDB(strWalletFile,"cr+").LoadWallet(this);
+
−    if (nLoadWalletRet != DB_LOAD_OK)
+
−        return nLoadWalletRet;
+
−    fFirstRunRet = vchDefaultKey.empty();
+
−
+
−    if (!HaveKey(Hash160(vchDefaultKey)))
+
−    {
+
−        // Create new keyUser and set as default key
+
−        RandAddSeedPerfmon();
+
−
+
−        SetDefaultKey(GetOrReuseKeyFromPool());
+
−        if (!SetAddressBookName(CBitcoinAddress(vchDefaultKey), ""))
+
−            return DB_LOAD_FAIL;
+
−    }
+
−
+
−    CreateThread(ThreadFlushWalletDB, &strWalletFile);
+
−    return DB_LOAD_OK;
+
−}
+
−
+
−
+
−bool CWallet::SetAddressBookName(const CBitcoinAddress& address, const string& strName)
+
−{
+
−    mapAddressBook[address] = strName;
+
−    if (!fFileBacked)
+
−        return false;
+
−    return CWalletDB(strWalletFile).WriteName(address.ToString(), strName);
+
−}
+
−
+
−bool CWallet::DelAddressBookName(const CBitcoinAddress& address)
+
−{
+
−    mapAddressBook.erase(address);
+
−    if (!fFileBacked)
+
−        return false;
+
−    return CWalletDB(strWalletFile).EraseName(address.ToString());
+
−}
+
−
+
−
+
−void CWallet::PrintWallet(const CBlock& block)
+
−{
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    {
+
−        if (mapWallet.count(block.vtx[0].GetHash()))
+
−        {
+
−            CWalletTx& wtx = mapWallet[block.vtx[0].GetHash()];
+
−            printf("    mine:  %d  %d  %d", wtx.GetDepthInMainChain(), wtx.GetBlocksToMaturity(), wtx.GetCredit());
+
−        }
+
−    }
+
−    printf("\n");
+
−}
+
−
+
−bool CWallet::GetTransaction(const uint256 &hashTx, CWalletTx& wtx)
+
−{
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    {
+
−        map<uint256, CWalletTx>::iterator mi = mapWallet.find(hashTx);
+
−        if (mi != mapWallet.end())
+
−        {
+
−            wtx = (*mi).second;
+
−            return true;
+
−        }
+
−    }
+
−    return false;
+
−}
+
−
+
−bool CWallet::SetDefaultKey(const std::vector<unsigned char> &vchPubKey)
+
−{
+
−    if (fFileBacked)
+
−    {
+
−        if (!CWalletDB(strWalletFile).WriteDefaultKey(vchPubKey))
+
−            return false;
+
−    }
+
−    vchDefaultKey = vchPubKey;
+
−    return true;
+
−}
+
−
+
−bool GetWalletFile(CWallet* pwallet, string &strWalletFileOut)
+
−{
+
−    if (!pwallet->fFileBacked)
+
−        return false;
+
−    strWalletFileOut = pwallet->strWalletFile;
+
−    return true;
+
−}
+
−
+
−bool CWallet::TopUpKeyPool()
+
−{
+
−    CRITICAL_BLOCK(cs_main)
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    CRITICAL_BLOCK(cs_setKeyPool)
+
−    CRITICAL_BLOCK(cs_vMasterKey)
+
−    {
+
−        if (IsLocked())
+
−            return false;
+
−
+
−        CWalletDB walletdb(strWalletFile);
+
−
+
−        // Top up key pool
+
−        int64 nTargetSize = max(GetArg("-keypool", 100), (int64)0);
+
−        while (setKeyPool.size() < nTargetSize+1)
+
−        {
+
−            int64 nEnd = 1;
+
−            if (!setKeyPool.empty())
+
−                nEnd = *(--setKeyPool.end()) + 1;
+
−            if (!walletdb.WritePool(nEnd, CKeyPool(GenerateNewKey())))
+
−                throw runtime_error("TopUpKeyPool() : writing generated key failed");
+
−            setKeyPool.insert(nEnd);
+
−            printf("keypool added key %"PRI64d", size=%d\n", nEnd, setKeyPool.size());
+
−        }
+
−    }
+
−    return true;
+
−}
+
−
+
−void CWallet::ReserveKeyFromKeyPool(int64& nIndex, CKeyPool& keypool)
+
−{
+
−    nIndex = -1;
+
−    keypool.vchPubKey.clear();
+
−    CRITICAL_BLOCK(cs_main)
+
−    CRITICAL_BLOCK(cs_mapWallet)
+
−    CRITICAL_BLOCK(cs_setKeyPool)
+
−    {
+
−        if (!IsLocked())
+
−            TopUpKeyPool();
+
−
+
−        // Get the oldest key
+
−        if(setKeyPool.empty())
+
−            return;
+
−
+
−        CWalletDB walletdb(strWalletFile);
+
−
+
−        nIndex = *(setKeyPool.begin());
+
−        setKeyPool.erase(setKeyPool.begin());
+
−        if (!walletdb.ReadPool(nIndex, keypool))
+
−            throw runtime_error("ReserveKeyFromKeyPool() : read failed");
+
−        if (!HaveKey(Hash160(keypool.vchPubKey)))
+
−            throw runtime_error("ReserveKeyFromKeyPool() : unknown key in key pool");
+
−        assert(!keypool.vchPubKey.empty());
+
−        printf("keypool reserve %"PRI64d"\n", nIndex);
+
−    }
+
−}
+
−
+
−void CWallet::KeepKey(int64 nIndex)
+
−{
+
−    // Remove from key pool
+
−    if (fFileBacked)
+
−    {
+
−        CWalletDB walletdb(strWalletFile);
+
−        CRITICAL_BLOCK(cs_main)
+
−        {
+
−            walletdb.ErasePool(nIndex);
+
−        }
+
−    }
+
−    printf("keypool keep %"PRI64d"\n", nIndex);
+
−}
+
−
+
−void CWallet::ReturnKey(int64 nIndex)
+
−{
+
−    // Return to key pool
+
−    CRITICAL_BLOCK(cs_setKeyPool)
+
−        setKeyPool.insert(nIndex);
+
−    printf("keypool return %"PRI64d"\n", nIndex);
+
−}
+
−
+
−vector<unsigned char> CWallet::GetOrReuseKeyFromPool()
+
−{
+
−    int64 nIndex = 0;
+
−    CKeyPool keypool;
+
−    ReserveKeyFromKeyPool(nIndex, keypool);
+
−    if(nIndex == -1)
+
−        return vchDefaultKey;
+
−    KeepKey(nIndex);
+
−    return keypool.vchPubKey;
+
−}
+
−
+
−int64 CWallet::GetOldestKeyPoolTime()
+
−{
+
−    int64 nIndex = 0;
+
−    CKeyPool keypool;
+
−    ReserveKeyFromKeyPool(nIndex, keypool);
+
−    if (nIndex == -1)
+
−        return GetTime();
+
−    ReturnKey(nIndex);
+
−    return keypool.nTime;
+
−}
+
−
+
−vector<unsigned char> CReserveKey::GetReservedKey()
+
−{
+
−    if (nIndex == -1)
+
−    {
+
−        CKeyPool keypool;
+
−        pwallet->ReserveKeyFromKeyPool(nIndex, keypool);
+
−        if (nIndex != -1)
+
−            vchPubKey = keypool.vchPubKey;
+
−        else
+
−        {
+
−            printf("CReserveKey::GetReservedKey(): Warning: using default key instead of a new key, top up your keypool.");
+
−            vchPubKey = pwallet->vchDefaultKey;
+
−        }
+
−    }
+
−    assert(!vchPubKey.empty());
+
−    return vchPubKey;
+
−}
+
−
+
−void CReserveKey::KeepKey()
+
−{
+
−    if (nIndex != -1)
+
−        pwallet->KeepKey(nIndex);
+
−    nIndex = -1;
+
−    vchPubKey.clear();
+
−}
+
−
+
−void CReserveKey::ReturnKey()
+
−{
+
−    if (nIndex != -1)
+
−        pwallet->ReturnKey(nIndex);
+
−    nIndex = -1;
+
−    vchPubKey.clear();
+
−}
+
−