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diff --git a/src/test/wallet_tests.cpp b/src/test/wallet_tests.cpp
new file mode 100644
index 000000000..9b77b284e
--- /dev/null
+++ b/src/test/wallet_tests.cpp
@@ -0,0 +1,295 @@
+#include <boost/test/unit_test.hpp>
+
+#include "main.h"
+#include "wallet.h"
+
+// how many times to run all the tests to have a chance to catch errors that only show up with particular random shuffles
+#define RUN_TESTS 100
+
+// some tests fail 1% of the time due to bad luck.
+// we repeat those tests this many times and only complain if all iterations of the test fail
+#define RANDOM_REPEATS 5
+
+using namespace std;
+
+typedef set<pair<const CWalletTx*,unsigned int> > CoinSet;
+
+BOOST_AUTO_TEST_SUITE(wallet_tests)
+
+static CWallet wallet;
+static vector<COutput> vCoins;
+
+static void add_coin(int64 nValue, int nAge = 6*24, bool fIsFromMe = false, int nInput=0)
+{
+ static int i;
+ CTransaction* tx = new CTransaction;
+ tx->nLockTime = i++; // so all transactions get different hashes
+ tx->vout.resize(nInput+1);
+ tx->vout[nInput].nValue = nValue;
+ CWalletTx* wtx = new CWalletTx(&wallet, *tx);
+ delete tx;
+ if (fIsFromMe)
+ {
+ // IsFromMe() returns (GetDebit() > 0), and GetDebit() is 0 if vin.empty(),
+ // so stop vin being empty, and cache a non-zero Debit to fake out IsFromMe()
+ wtx->vin.resize(1);
+ wtx->fDebitCached = true;
+ wtx->nDebitCached = 1;
+ }
+ COutput output(wtx, nInput, nAge);
+ vCoins.push_back(output);
+}
+
+static void empty_wallet(void)
+{
+ BOOST_FOREACH(COutput output, vCoins)
+ delete output.tx;
+ vCoins.clear();
+}
+
+static bool equal_sets(CoinSet a, CoinSet b)
+{
+ pair<CoinSet::iterator, CoinSet::iterator> ret = mismatch(a.begin(), a.end(), b.begin());
+ return ret.first == a.end() && ret.second == b.end();
+}
+
+BOOST_AUTO_TEST_CASE(coin_selection_tests)
+{
+ static CoinSet setCoinsRet, setCoinsRet2;
+ static int64 nValueRet;
+
+ // test multiple times to allow for differences in the shuffle order
+ for (int i = 0; i < RUN_TESTS; i++)
+ {
+ empty_wallet();
+
+ // with an empty wallet we can't even pay one cent
+ BOOST_CHECK(!wallet.SelectCoinsMinConf( 1 * CENT, 1, 6, vCoins, setCoinsRet, nValueRet));
+
+ add_coin(1*CENT, 4); // add a new 1 cent coin
+
+ // with a new 1 cent coin, we still can't find a mature 1 cent
+ BOOST_CHECK(!wallet.SelectCoinsMinConf( 1 * CENT, 1, 6, vCoins, setCoinsRet, nValueRet));
+
+ // but we can find a new 1 cent
+ BOOST_CHECK( wallet.SelectCoinsMinConf( 1 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 1 * CENT);
+
+ add_coin(2*CENT); // add a mature 2 cent coin
+
+ // we can't make 3 cents of mature coins
+ BOOST_CHECK(!wallet.SelectCoinsMinConf( 3 * CENT, 1, 6, vCoins, setCoinsRet, nValueRet));
+
+ // we can make 3 cents of new coins
+ BOOST_CHECK( wallet.SelectCoinsMinConf( 3 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 3 * CENT);
+
+ add_coin(5*CENT); // add a mature 5 cent coin,
+ add_coin(10*CENT, 3, true); // a new 10 cent coin sent from one of our own addresses
+ add_coin(20*CENT); // and a mature 20 cent coin
+
+ // now we have new: 1+10=11 (of which 10 was self-sent), and mature: 2+5+20=27. total = 38
+
+ // we can't make 38 cents only if we disallow new coins:
+ BOOST_CHECK(!wallet.SelectCoinsMinConf(38 * CENT, 1, 6, vCoins, setCoinsRet, nValueRet));
+ // we can't even make 37 cents if we don't allow new coins even if they're from us
+ BOOST_CHECK(!wallet.SelectCoinsMinConf(38 * CENT, 6, 6, vCoins, setCoinsRet, nValueRet));
+ // but we can make 37 cents if we accept new coins from ourself
+ BOOST_CHECK( wallet.SelectCoinsMinConf(37 * CENT, 1, 6, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 37 * CENT);
+ // and we can make 38 cents if we accept all new coins
+ BOOST_CHECK( wallet.SelectCoinsMinConf(38 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 38 * CENT);
+
+ // try making 34 cents from 1,2,5,10,20 - we can't do it exactly
+ BOOST_CHECK( wallet.SelectCoinsMinConf(34 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_GT(nValueRet, 34 * CENT); // but should get more than 34 cents
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 3); // the best should be 20+10+5. it's incredibly unlikely the 1 or 2 got included (but possible)
+
+ // when we try making 7 cents, the smaller coins (1,2,5) are enough. We should see just 2+5
+ BOOST_CHECK( wallet.SelectCoinsMinConf( 7 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 7 * CENT);
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 2);
+
+ // when we try making 8 cents, the smaller coins (1,2,5) are exactly enough.
+ BOOST_CHECK( wallet.SelectCoinsMinConf( 8 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK(nValueRet == 8 * CENT);
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 3);
+
+ // when we try making 9 cents, no subset of smaller coins is enough, and we get the next bigger coin (10)
+ BOOST_CHECK( wallet.SelectCoinsMinConf( 9 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 10 * CENT);
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 1);
+
+ // now clear out the wallet and start again to test chosing between subsets of smaller coins and the next biggest coin
+ empty_wallet();
+
+ add_coin( 6*CENT);
+ add_coin( 7*CENT);
+ add_coin( 8*CENT);
+ add_coin(20*CENT);
+ add_coin(30*CENT); // now we have 6+7+8+20+30 = 71 cents total
+
+ // check that we have 71 and not 72
+ BOOST_CHECK( wallet.SelectCoinsMinConf(71 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK(!wallet.SelectCoinsMinConf(72 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+
+ // now try making 16 cents. the best smaller coins can do is 6+7+8 = 21; not as good at the next biggest coin, 20
+ BOOST_CHECK( wallet.SelectCoinsMinConf(16 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 20 * CENT); // we should get 20 in one coin
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 1);
+
+ add_coin( 5*CENT); // now we have 5+6+7+8+20+30 = 75 cents total
+
+ // now if we try making 16 cents again, the smaller coins can make 5+6+7 = 18 cents, better than the next biggest coin, 20
+ BOOST_CHECK( wallet.SelectCoinsMinConf(16 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 18 * CENT); // we should get 18 in 3 coins
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 3);
+
+ add_coin( 18*CENT); // now we have 5+6+7+8+18+20+30
+
+ // and now if we try making 16 cents again, the smaller coins can make 5+6+7 = 18 cents, the same as the next biggest coin, 18
+ BOOST_CHECK( wallet.SelectCoinsMinConf(16 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 18 * CENT); // we should get 18 in 1 coin
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 1); // because in the event of a tie, the biggest coin wins
+
+ // now try making 11 cents. we should get 5+6
+ BOOST_CHECK( wallet.SelectCoinsMinConf(11 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 11 * CENT);
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 2);
+
+ // check that the smallest bigger coin is used
+ add_coin( 1*COIN);
+ add_coin( 2*COIN);
+ add_coin( 3*COIN);
+ add_coin( 4*COIN); // now we have 5+6+7+8+18+20+30+100+200+300+400 = 1094 cents
+ BOOST_CHECK( wallet.SelectCoinsMinConf(95 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 1 * COIN); // we should get 1 bitcoin in 1 coin
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 1);
+
+ BOOST_CHECK( wallet.SelectCoinsMinConf(195 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 2 * COIN); // we should get 2 bitcoins in 1 coin
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 1);
+
+ // empty the wallet and start again, now with fractions of a cent, to test sub-cent change avoidance
+ empty_wallet();
+ add_coin(0.1*CENT);
+ add_coin(0.2*CENT);
+ add_coin(0.3*CENT);
+ add_coin(0.4*CENT);
+ add_coin(0.5*CENT);
+
+ // try making 1 cent from 0.1 + 0.2 + 0.3 + 0.4 + 0.5 = 1.5 cents
+ // we'll get sub-cent change whatever happens, so can expect 1.0 exactly
+ BOOST_CHECK( wallet.SelectCoinsMinConf(1 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 1 * CENT);
+
+ // but if we add a bigger coin, making it possible to avoid sub-cent change, things change:
+ add_coin(1111*CENT);
+
+ // try making 1 cent from 0.1 + 0.2 + 0.3 + 0.4 + 0.5 + 1111 = 1112.5 cents
+ BOOST_CHECK( wallet.SelectCoinsMinConf(1 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 1 * CENT); // we should get the exact amount
+
+ // if we add more sub-cent coins:
+ add_coin(0.6*CENT);
+ add_coin(0.7*CENT);
+
+ // and try again to make 1.0 cents, we can still make 1.0 cents
+ BOOST_CHECK( wallet.SelectCoinsMinConf(1 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 1 * CENT); // we should get the exact amount
+
+ // run the 'mtgox' test (see http://blockexplorer.com/tx/29a3efd3ef04f9153d47a990bd7b048a4b2d213daaa5fb8ed670fb85f13bdbcf)
+ // they tried to consolidate 10 50k coins into one 500k coin, and ended up with 50k in change
+ empty_wallet();
+ for (int i = 0; i < 20; i++)
+ add_coin(50000 * COIN);
+
+ BOOST_CHECK( wallet.SelectCoinsMinConf(500000 * COIN, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 500000 * COIN); // we should get the exact amount
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 10); // in ten coins
+
+ // if there's not enough in the smaller coins to make at least 1 cent change (0.5+0.6+0.7 < 1.0+1.0),
+ // we need to try finding an exact subset anyway
+
+ // sometimes it will fail, and so we use the next biggest coin:
+ empty_wallet();
+ add_coin(0.5 * CENT);
+ add_coin(0.6 * CENT);
+ add_coin(0.7 * CENT);
+ add_coin(1111 * CENT);
+ BOOST_CHECK( wallet.SelectCoinsMinConf(1 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 1111 * CENT); // we get the bigger coin
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 1);
+
+ // but sometimes it's possible, and we use an exact subset (0.4 + 0.6 = 1.0)
+ empty_wallet();
+ add_coin(0.4 * CENT);
+ add_coin(0.6 * CENT);
+ add_coin(0.8 * CENT);
+ add_coin(1111 * CENT);
+ BOOST_CHECK( wallet.SelectCoinsMinConf(1 * CENT, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 1 * CENT); // we should get the exact amount
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 2); // in two coins 0.4+0.6
+
+ // test avoiding sub-cent change
+ empty_wallet();
+ add_coin(0.0005 * COIN);
+ add_coin(0.01 * COIN);
+ add_coin(1 * COIN);
+
+ // trying to make 1.0001 from these three coins
+ BOOST_CHECK( wallet.SelectCoinsMinConf(1.0001 * COIN, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 1.0105 * COIN); // we should get all coins
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 3);
+
+ // but if we try to make 0.999, we should take the bigger of the two small coins to avoid sub-cent change
+ BOOST_CHECK( wallet.SelectCoinsMinConf(0.999 * COIN, 1, 1, vCoins, setCoinsRet, nValueRet));
+ BOOST_CHECK_EQUAL(nValueRet, 1.01 * COIN); // we should get 1 + 0.01
+ BOOST_CHECK_EQUAL(setCoinsRet.size(), 2);
+
+ // test randomness
+ {
+ empty_wallet();
+ for (int i2 = 0; i2 < 100; i2++)
+ add_coin(COIN);
+
+ // picking 50 from 100 coins doesn't depend on the shuffle,
+ // but does depend on randomness in the stochastic approximation code
+ BOOST_CHECK(wallet.SelectCoinsMinConf(50 * COIN, 1, 6, vCoins, setCoinsRet , nValueRet));
+ BOOST_CHECK(wallet.SelectCoinsMinConf(50 * COIN, 1, 6, vCoins, setCoinsRet2, nValueRet));
+ BOOST_CHECK(!equal_sets(setCoinsRet, setCoinsRet2));
+
+ int fails = 0;
+ for (int i = 0; i < RANDOM_REPEATS; i++)
+ {
+ // selecting 1 from 100 identical coins depends on the shuffle; this test will fail 1% of the time
+ // run the test RANDOM_REPEATS times and only complain if all of them fail
+ BOOST_CHECK(wallet.SelectCoinsMinConf(COIN, 1, 6, vCoins, setCoinsRet , nValueRet));
+ BOOST_CHECK(wallet.SelectCoinsMinConf(COIN, 1, 6, vCoins, setCoinsRet2, nValueRet));
+ if (equal_sets(setCoinsRet, setCoinsRet2))
+ fails++;
+ }
+ BOOST_CHECK_NE(fails, RANDOM_REPEATS);
+
+ // add 75 cents in small change. not enough to make 90 cents,
+ // then try making 90 cents. there are multiple competing "smallest bigger" coins,
+ // one of which should be picked at random
+ add_coin( 5*CENT); add_coin(10*CENT); add_coin(15*CENT); add_coin(20*CENT); add_coin(25*CENT);
+
+ fails = 0;
+ for (int i = 0; i < RANDOM_REPEATS; i++)
+ {
+ // selecting 1 from 100 identical coins depends on the shuffle; this test will fail 1% of the time
+ // run the test RANDOM_REPEATS times and only complain if all of them fail
+ BOOST_CHECK(wallet.SelectCoinsMinConf(90*CENT, 1, 6, vCoins, setCoinsRet , nValueRet));
+ BOOST_CHECK(wallet.SelectCoinsMinConf(90*CENT, 1, 6, vCoins, setCoinsRet2, nValueRet));
+ if (equal_sets(setCoinsRet, setCoinsRet2))
+ fails++;
+ }
+ BOOST_CHECK_NE(fails, RANDOM_REPEATS);
+ }
+ }
+}
+
+BOOST_AUTO_TEST_SUITE_END()
diff --git a/src/wallet.cpp b/src/wallet.cpp
index 4e3b559f6..127d58080 100644
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -1,1582 +1,1610 @@
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "wallet.h"
#include "walletdb.h"
#include "crypter.h"
#include "ui_interface.h"
#include "base58.h"
using namespace std;
//////////////////////////////////////////////////////////////////////////////
//
// mapWallet
//
+struct CompareValueOnly
+{
+ bool operator()(const pair<int64, pair<const CWalletTx*, unsigned int> >& t1,
+ const pair<int64, pair<const CWalletTx*, unsigned int> >& t2) const
+ {
+ return t1.first < t2.first;
+ }
+};
+
CPubKey CWallet::GenerateNewKey()
{
bool fCompressed = CanSupportFeature(FEATURE_COMPRPUBKEY); // default to compressed public keys if we want 0.6.0 wallets
RandAddSeedPerfmon();
CKey key;
key.MakeNewKey(fCompressed);
// Compressed public keys were introduced in version 0.6.0
if (fCompressed)
SetMinVersion(FEATURE_COMPRPUBKEY);
if (!AddKey(key))
throw std::runtime_error("CWallet::GenerateNewKey() : AddKey failed");
return key.GetPubKey();
}
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 CPubKey &vchPubKey, const vector<unsigned char> &vchCryptedSecret)
{
if (!CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret))
return false;
if (!fFileBacked)
return true;
{
LOCK(cs_wallet);
if (pwalletdbEncryption)
return pwalletdbEncryption->WriteCryptedKey(vchPubKey, vchCryptedSecret);
else
return CWalletDB(strWalletFile).WriteCryptedKey(vchPubKey, vchCryptedSecret);
}
return false;
}
bool CWallet::AddCScript(const CScript& redeemScript)
{
if (!CCryptoKeyStore::AddCScript(redeemScript))
return false;
if (!fFileBacked)
return true;
return CWalletDB(strWalletFile).WriteCScript(Hash160(redeemScript), redeemScript);
}
bool CWallet::Unlock(const SecureString& strWalletPassphrase)
{
if (!IsLocked())
return false;
CCrypter crypter;
CKeyingMaterial vMasterKey;
{
LOCK(cs_wallet);
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 SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase)
{
bool fWasLocked = IsLocked();
{
LOCK(cs_wallet);
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;
}
void CWallet::SetBestChain(const CBlockLocator& loc)
{
CWalletDB walletdb(strWalletFile);
walletdb.WriteBestBlock(loc);
}
// 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::SetMinVersion(enum WalletFeature nVersion, CWalletDB* pwalletdbIn, bool fExplicit)
{
if (nWalletVersion >= nVersion)
return true;
// when doing an explicit upgrade, if we pass the max version permitted, upgrade all the way
if (fExplicit && nVersion > nWalletMaxVersion)
nVersion = FEATURE_LATEST;
nWalletVersion = nVersion;
if (nVersion > nWalletMaxVersion)
nWalletMaxVersion = nVersion;
if (fFileBacked)
{
CWalletDB* pwalletdb = pwalletdbIn ? pwalletdbIn : new CWalletDB(strWalletFile);
if (nWalletVersion >= 40000)
{
// Versions prior to 0.4.0 did not support the "minversion" record.
// Use a CCorruptAddress to make them crash instead.
CCorruptAddress corruptAddress;
pwalletdb->WriteSetting("addrIncoming", corruptAddress);
}
if (nWalletVersion > 40000)
pwalletdb->WriteMinVersion(nWalletVersion);
if (!pwalletdbIn)
delete pwalletdb;
}
return true;
}
bool CWallet::SetMaxVersion(int nVersion)
{
// cannot downgrade below current version
if (nWalletVersion > nVersion)
return false;
nWalletMaxVersion = nVersion;
return true;
}
bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase)
{
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;
{
LOCK(cs_wallet);
mapMasterKeys[++nMasterKeyMaxID] = kMasterKey;
if (fFileBacked)
{
pwalletdbEncryption = new CWalletDB(strWalletFile);
if (!pwalletdbEncryption->TxnBegin())
return false;
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.
}
// Encryption was introduced in version 0.4.0
SetMinVersion(FEATURE_WALLETCRYPT, pwalletdbEncryption, true);
if (fFileBacked)
{
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.
delete pwalletdbEncryption;
pwalletdbEncryption = NULL;
}
Lock();
Unlock(strWalletPassphrase);
NewKeyPool();
Lock();
// Need to completely rewrite the wallet file; if we don't, bdb might keep
// bits of the unencrypted private key in slack space in the database file.
CDB::Rewrite(strWalletFile);
}
NotifyStatusChanged(this);
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.
{
LOCK(cs_wallet);
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();
NotifyTransactionChanged(this, txin.prevout.hash, CT_UPDATED);
}
}
}
}
}
void CWallet::MarkDirty()
{
{
LOCK(cs_wallet);
BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
item.second.MarkDirty();
}
}
bool CWallet::AddToWallet(const CWalletTx& wtxIn)
{
uint256 hash = wtxIn.GetHash();
{
LOCK(cs_wallet);
// 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.BindWallet(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.SetDestination(vchDefaultKey.GetID());
BOOST_FOREACH(const CTxOut& txout, wtx.vout)
{
if (txout.scriptPubKey == scriptDefaultKey)
{
CPubKey newDefaultKey;
if (GetKeyFromPool(newDefaultKey, false))
{
SetDefaultKey(newDefaultKey);
SetAddressBookName(vchDefaultKey.GetID(), "");
}
}
}
#endif
// since AddToWallet is called directly for self-originating transactions, check for consumption of own coins
WalletUpdateSpent(wtx);
// Notify UI of new or updated transaction
NotifyTransactionChanged(this, hash, fInsertedNew ? CT_NEW : CT_UPDATED);
}
return true;
}
// Add a transaction to the wallet, or update it.
// pblock is optional, but should be provided if the transaction is known to be in a block.
// If fUpdate is true, existing transactions will be updated.
bool CWallet::AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pblock, bool fUpdate, bool fFindBlock)
{
uint256 hash = tx.GetHash();
{
LOCK(cs_wallet);
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;
{
LOCK(cs_wallet);
if (mapWallet.erase(hash))
CWalletDB(strWalletFile).EraseTx(hash);
}
return true;
}
bool CWallet::IsMine(const CTxIn &txin) const
{
{
LOCK(cs_wallet);
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
{
{
LOCK(cs_wallet);
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;
}
bool CWallet::IsChange(const CTxOut& txout) const
{
CTxDestination address;
// TODO: fix handling of 'change' outputs. The assumption is that any
// payment to a TX_PUBKEYHASH that is mine but isn't in the address book
// is change. That assumption is likely to break when we implement multisignature
// wallets that return change back into a multi-signature-protected address;
// a better way of identifying which outputs are 'the send' and which are
// 'the change' will need to be implemented (maybe extend CWalletTx to remember
// which output, if any, was change).
if (ExtractDestination(txout.scriptPubKey, address) && ::IsMine(*this, address))
{
LOCK(cs_wallet);
if (!mapAddressBook.count(address))
return true;
}
return false;
}
int64 CWalletTx::GetTxTime() const
{
return nTimeReceived;
}
int CWalletTx::GetRequestCount() const
{
// Returns -1 if it wasn't being tracked
int nRequests = -1;
{
LOCK(pwallet->cs_wallet);
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<CTxDestination, int64> >& listReceived,
list<pair<CTxDestination, 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.
BOOST_FOREACH(const CTxOut& txout, vout)
{
CTxDestination address;
vector<unsigned char> vchPubKey;
if (!ExtractDestination(txout.scriptPubKey, address))
{
printf("CWalletTx::GetAmounts: Unknown transaction type found, txid %s\n",
this->GetHash().ToString().c_str());
}
// 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<CTxDestination, int64> > listReceived;
list<pair<CTxDestination, int64> > listSent;
GetAmounts(allGeneratedImmature, allGeneratedMature, listReceived, listSent, allFee, strSentAccount);
if (strAccount == "")
nGenerated = allGeneratedMature;
if (strAccount == strSentAccount)
{
BOOST_FOREACH(const PAIRTYPE(CTxDestination,int64)& s, listSent)
nSent += s.second;
nFee = allFee;
}
{
LOCK(pwallet->cs_wallet);
BOOST_FOREACH(const PAIRTYPE(CTxDestination,int64)& r, listReceived)
{
if (pwallet->mapAddressBook.count(r.first))
{
map<CTxDestination, 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
{
LOCK(pwallet->cs_wallet);
map<uint256, const CMerkleTx*> mapWalletPrev;
set<uint256> setAlreadyDone;
for (unsigned 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);
}
// Scan the block chain (starting in pindexStart) for transactions
// from or to us. If fUpdate is true, found transactions that already
// exist in the wallet will be updated.
int CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate)
{
int ret = 0;
CBlockIndex* pindex = pindexStart;
{
LOCK(cs_wallet);
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;
}
int CWallet::ScanForWalletTransaction(const uint256& hashTx)
{
CTransaction tx;
tx.ReadFromDisk(COutPoint(hashTx, 0));
if (AddToWalletIfInvolvingMe(tx, NULL, true, true))
return 1;
return 0;
}
void CWallet::ReacceptWalletTransactions()
{
CTxDB txdb("r");
bool fRepeat = true;
while (fRepeat)
{
LOCK(cs_wallet);
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 (unsigned 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");
{
LOCK(cs_wallet);
// 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;
{
LOCK(cs_wallet);
for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
{
const CWalletTx* pcoin = &(*it).second;
if (pcoin->IsFinal() && pcoin->IsConfirmed())
nTotal += pcoin->GetAvailableCredit();
}
}
return nTotal;
}
int64 CWallet::GetUnconfirmedBalance() const
{
int64 nTotal = 0;
{
LOCK(cs_wallet);
for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
{
const CWalletTx* pcoin = &(*it).second;
if (!pcoin->IsFinal() || !pcoin->IsConfirmed())
nTotal += pcoin->GetAvailableCredit();
}
}
return nTotal;
}
int64 CWallet::GetImmatureBalance() const
{
int64 nTotal = 0;
{
LOCK(cs_wallet);
for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
{
const CWalletTx& pcoin = (*it).second;
if (pcoin.IsCoinBase() && pcoin.GetBlocksToMaturity() > 0 && pcoin.GetDepthInMainChain() >= 2)
nTotal += GetCredit(pcoin);
}
}
return nTotal;
}
-bool CWallet::SelectCoinsMinConf(int64 nTargetValue, int nConfMine, int nConfTheirs, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const
+// populate vCoins with vector of spendable COutputs
+void CWallet::AvailableCoins(vector<COutput>& vCoins) const
{
- setCoinsRet.clear();
- nValueRet = 0;
-
- // List of values less than target
- pair<int64, pair<const CWalletTx*,unsigned int> > coinLowestLarger;
- coinLowestLarger.first = std::numeric_limits<int64>::max();
- coinLowestLarger.second.first = NULL;
- vector<pair<int64, pair<const CWalletTx*,unsigned int> > > vValue;
- int64 nTotalLower = 0;
+ vCoins.clear();
{
- LOCK(cs_wallet);
- 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)
- {
+ LOCK(cs_wallet);
+ for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+ {
+ const CWalletTx* pcoin = &(*it).second;
+
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 (unsigned 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 (unsigned int i = 0; i < vValue.size(); ++i)
- {
- setCoinsRet.insert(vValue[i].second);
- nValueRet += vValue[i].first;
+ if (!(pcoin->IsSpent(i)) && IsMine(pcoin->vout[i]) && pcoin->vout[i].nValue > 0)
+ vCoins.push_back(COutput(pcoin, i, pcoin->GetDepthInMainChain()));
}
- 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());
+static void ApproximateBestSubset(vector<pair<int64, pair<const CWalletTx*,unsigned int> > >vValue, int64 nTotalLower, int64 nTargetValue,
+ vector<char>& vfBest, int64& nBest, int iterations = 1000)
+{
vector<char> vfIncluded;
- vector<char> vfBest(vValue.size(), true);
- int64 nBest = nTotalLower;
- for (int nRep = 0; nRep < 1000 && nBest != nTargetValue; nRep++)
+ vfBest.assign(vValue.size(), true);
+ nBest = nTotalLower;
+
+ for (int nRep = 0; nRep < iterations && nBest != nTargetValue; nRep++)
{
vfIncluded.assign(vValue.size(), false);
int64 nTotal = 0;
bool fReachedTarget = false;
for (int nPass = 0; nPass < 2 && !fReachedTarget; nPass++)
{
for (unsigned 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;
}
}
}
}
}
+}
+
+bool CWallet::SelectCoinsMinConf(int64 nTargetValue, int nConfMine, int nConfTheirs, vector<COutput> vCoins,
+ 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 = std::numeric_limits<int64>::max();
+ coinLowestLarger.second.first = NULL;
+ vector<pair<int64, pair<const CWalletTx*,unsigned int> > > vValue;
+ int64 nTotalLower = 0;
+
+ random_shuffle(vCoins.begin(), vCoins.end(), GetRandInt);
+
+ BOOST_FOREACH(COutput output, vCoins)
+ {
+ const CWalletTx *pcoin = output.tx;
+
+ if (output.nDepth < (pcoin->IsFromMe() ? nConfMine : nConfTheirs))
+ continue;
+
+ int i = output.i;
+ int64 n = pcoin->vout[i].nValue;
+
+ 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)
+ {
+ for (unsigned int i = 0; i < vValue.size(); ++i)
+ {
+ setCoinsRet.insert(vValue[i].second);
+ nValueRet += vValue[i].first;
+ }
+ return true;
+ }
- // If the next larger is still closer, return it
- if (coinLowestLarger.second.first && coinLowestLarger.first - nTargetValue <= nBest - nTargetValue)
+ if (nTotalLower < nTargetValue)
+ {
+ if (coinLowestLarger.second.first == NULL)
+ return false;
+ setCoinsRet.insert(coinLowestLarger.second);
+ nValueRet += coinLowestLarger.first;
+ return true;
+ }
+
+ // Solve subset sum by stochastic approximation
+ sort(vValue.rbegin(), vValue.rend(), CompareValueOnly());
+ vector<char> vfBest;
+ int64 nBest;
+
+ ApproximateBestSubset(vValue, nTotalLower, nTargetValue, vfBest, nBest, 1000);
+ if (nBest != nTargetValue && nTotalLower >= nTargetValue + CENT)
+ ApproximateBestSubset(vValue, nTotalLower, nTargetValue + CENT, vfBest, nBest, 1000);
+
+ // If we have a bigger coin and (either the stochastic approximation didn't find a good solution,
+ // or the next bigger coin is closer), return the bigger coin
+ if (coinLowestLarger.second.first &&
+ ((nBest != nTargetValue && nBest < nTargetValue + CENT) || coinLowestLarger.first <= nBest))
{
setCoinsRet.insert(coinLowestLarger.second);
nValueRet += coinLowestLarger.first;
}
else {
for (unsigned 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 (unsigned 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));
+ vector<COutput> vCoins;
+ AvailableCoins(vCoins);
+
+ return (SelectCoinsMinConf(nTargetValue, 1, 6, vCoins, setCoinsRet, nValueRet) ||
+ SelectCoinsMinConf(nTargetValue, 1, 1, vCoins, setCoinsRet, nValueRet) ||
+ SelectCoinsMinConf(nTargetValue, 0, 1, vCoins, 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.BindWallet(this);
{
LOCK2(cs_main, cs_wallet);
// txdb must be opened before the mapWallet lock
CTxDB txdb("r");
{
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
// NOTE: this depends on the exact behaviour of GetMinFee
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
CPubKey vchPubKey = reservekey.GetReservedKey();
// assert(mapKeys.count(vchPubKey));
// Fill a vout to ourself
// TODO: pass in scriptChange instead of reservekey so
// change transaction isn't always pay-to-bitcoin-address
CScript scriptChange;
scriptChange.SetDestination(vchPubKey.GetID());
// 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, PROTOCOL_VERSION);
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, GMF_SEND);
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)
{
{
LOCK2(cs_main, cs_wallet);
printf("CommitTransaction:\n%s", wtxNew.ToString().c_str());
{
// 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.BindWallet(this);
coin.MarkSpent(txin.prevout.n);
coin.WriteToDisk();
NotifyTransactionChanged(this, coin.GetHash(), CT_UPDATED);
}
if (fFileBacked)
delete pwalletdb;
}
// Track how many getdata requests our transaction gets
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();
}
return true;
}
string CWallet::SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee)
{
CReserveKey reservekey(this);
int64 nFeeRequired;
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 && !uiInterface.ThreadSafeAskFee(nFeeRequired, _("Sending...")))
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.");
return "";
}
string CWallet::SendMoneyToDestination(const CTxDestination& 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.SetDestination(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_NEED_REWRITE)
{
if (CDB::Rewrite(strWalletFile, "\x04pool"))
{
setKeyPool.clear();
// Note: can't top-up keypool here, because wallet is locked.
// User will be prompted to unlock wallet the next operation
// the requires a new key.
}
nLoadWalletRet = DB_NEED_REWRITE;
}
if (nLoadWalletRet != DB_LOAD_OK)
return nLoadWalletRet;
fFirstRunRet = !vchDefaultKey.IsValid();
CreateThread(ThreadFlushWalletDB, &strWalletFile);
return DB_LOAD_OK;
}
bool CWallet::SetAddressBookName(const CTxDestination& address, const string& strName)
{
std::map<CTxDestination, std::string>::iterator mi = mapAddressBook.find(address);
mapAddressBook[address] = strName;
NotifyAddressBookChanged(this, address, strName, ::IsMine(*this, address), (mi == mapAddressBook.end()) ? CT_NEW : CT_UPDATED);
if (!fFileBacked)
return false;
return CWalletDB(strWalletFile).WriteName(CBitcoinAddress(address).ToString(), strName);
}
bool CWallet::DelAddressBookName(const CTxDestination& address)
{
mapAddressBook.erase(address);
NotifyAddressBookChanged(this, address, "", ::IsMine(*this, address), CT_DELETED);
if (!fFileBacked)
return false;
return CWalletDB(strWalletFile).EraseName(CBitcoinAddress(address).ToString());
}
void CWallet::PrintWallet(const CBlock& block)
{
{
LOCK(cs_wallet);
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)
{
{
LOCK(cs_wallet);
map<uint256, CWalletTx>::iterator mi = mapWallet.find(hashTx);
if (mi != mapWallet.end())
{
wtx = (*mi).second;
return true;
}
}
return false;
}
bool CWallet::SetDefaultKey(const CPubKey &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;
}
//
// Mark old keypool keys as used,
// and generate all new keys
//
bool CWallet::NewKeyPool()
{
{
LOCK(cs_wallet);
CWalletDB walletdb(strWalletFile);
BOOST_FOREACH(int64 nIndex, setKeyPool)
walletdb.ErasePool(nIndex);
setKeyPool.clear();
if (IsLocked())
return false;
int64 nKeys = max(GetArg("-keypool", 100), (int64)0);
for (int i = 0; i < nKeys; i++)
{
int64 nIndex = i+1;
walletdb.WritePool(nIndex, CKeyPool(GenerateNewKey()));
setKeyPool.insert(nIndex);
}
printf("CWallet::NewKeyPool wrote %"PRI64d" new keys\n", nKeys);
}
return true;
}
bool CWallet::TopUpKeyPool()
{
{
LOCK(cs_wallet);
if (IsLocked())
return false;
CWalletDB walletdb(strWalletFile);
// Top up key pool
unsigned int nTargetSize = max(GetArg("-keypool", 100), 0LL);
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 = CPubKey();
{
LOCK(cs_wallet);
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(keypool.vchPubKey.GetID()))
throw runtime_error("ReserveKeyFromKeyPool() : unknown key in key pool");
assert(keypool.vchPubKey.IsValid());
printf("keypool reserve %"PRI64d"\n", nIndex);
}
}
int64 CWallet::AddReserveKey(const CKeyPool& keypool)
{
{
LOCK2(cs_main, cs_wallet);
CWalletDB walletdb(strWalletFile);
int64 nIndex = 1 + *(--setKeyPool.end());
if (!walletdb.WritePool(nIndex, keypool))
throw runtime_error("AddReserveKey() : writing added key failed");
setKeyPool.insert(nIndex);
return nIndex;
}
return -1;
}
void CWallet::KeepKey(int64 nIndex)
{
// Remove from key pool
if (fFileBacked)
{
CWalletDB walletdb(strWalletFile);
walletdb.ErasePool(nIndex);
}
printf("keypool keep %"PRI64d"\n", nIndex);
}
void CWallet::ReturnKey(int64 nIndex)
{
// Return to key pool
{
LOCK(cs_wallet);
setKeyPool.insert(nIndex);
}
printf("keypool return %"PRI64d"\n", nIndex);
}
bool CWallet::GetKeyFromPool(CPubKey& result, bool fAllowReuse)
{
int64 nIndex = 0;
CKeyPool keypool;
{
LOCK(cs_wallet);
ReserveKeyFromKeyPool(nIndex, keypool);
if (nIndex == -1)
{
if (fAllowReuse && vchDefaultKey.IsValid())
{
result = vchDefaultKey;
return true;
}
if (IsLocked()) return false;
result = GenerateNewKey();
return true;
}
KeepKey(nIndex);
result = keypool.vchPubKey;
}
return true;
}
int64 CWallet::GetOldestKeyPoolTime()
{
int64 nIndex = 0;
CKeyPool keypool;
ReserveKeyFromKeyPool(nIndex, keypool);
if (nIndex == -1)
return GetTime();
ReturnKey(nIndex);
return keypool.nTime;
}
CPubKey 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.IsValid());
return vchPubKey;
}
void CReserveKey::KeepKey()
{
if (nIndex != -1)
pwallet->KeepKey(nIndex);
nIndex = -1;
vchPubKey = CPubKey();
}
void CReserveKey::ReturnKey()
{
if (nIndex != -1)
pwallet->ReturnKey(nIndex);
nIndex = -1;
vchPubKey = CPubKey();
}
void CWallet::GetAllReserveKeys(set<CKeyID>& setAddress)
{
setAddress.clear();
CWalletDB walletdb(strWalletFile);
LOCK2(cs_main, cs_wallet);
BOOST_FOREACH(const int64& id, setKeyPool)
{
CKeyPool keypool;
if (!walletdb.ReadPool(id, keypool))
throw runtime_error("GetAllReserveKeyHashes() : read failed");
assert(keypool.vchPubKey.IsValid());
CKeyID keyID = keypool.vchPubKey.GetID();
if (!HaveKey(keyID))
throw runtime_error("GetAllReserveKeyHashes() : unknown key in key pool");
setAddress.insert(keyID);
}
}
void CWallet::UpdatedTransaction(const uint256 &hashTx)
{
{
LOCK(cs_wallet);
// Only notify UI if this transaction is in this wallet
map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(hashTx);
if (mi != mapWallet.end())
NotifyTransactionChanged(this, hashTx, CT_UPDATED);
}
}
diff --git a/src/wallet.h b/src/wallet.h
index dfdb7b825..b2e0e5260 100644
--- a/src/wallet.h
+++ b/src/wallet.h
@@ -1,706 +1,737 @@
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_WALLET_H
#define BITCOIN_WALLET_H
#include "main.h"
#include "key.h"
#include "keystore.h"
#include "script.h"
#include "ui_interface.h"
class CWalletTx;
class CReserveKey;
class CWalletDB;
+class COutput;
/** (client) version numbers for particular wallet features */
enum WalletFeature
{
FEATURE_BASE = 10500, // the earliest version new wallets supports (only useful for getinfo's clientversion output)
FEATURE_WALLETCRYPT = 40000, // wallet encryption
FEATURE_COMPRPUBKEY = 60000, // compressed public keys
FEATURE_LATEST = 60000
};
/** A key pool entry */
class CKeyPool
{
public:
int64 nTime;
CPubKey vchPubKey;
CKeyPool()
{
nTime = GetTime();
}
CKeyPool(const CPubKey& vchPubKeyIn)
{
nTime = GetTime();
vchPubKey = vchPubKeyIn;
}
IMPLEMENT_SERIALIZE
(
if (!(nType & SER_GETHASH))
READWRITE(nVersion);
READWRITE(nTime);
READWRITE(vchPubKey);
)
};
/** A CWallet is an extension of a keystore, which also maintains a set of transactions and balances,
* and provides the ability to create new transactions.
*/
class CWallet : public CCryptoKeyStore
{
private:
- bool SelectCoinsMinConf(int64 nTargetValue, int nConfMine, int nConfTheirs, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const;
+ void AvailableCoins(std::vector<COutput>& vCoins) const;
bool SelectCoins(int64 nTargetValue, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const;
CWalletDB *pwalletdbEncryption;
// the current wallet version: clients below this version are not able to load the wallet
int nWalletVersion;
// the maxmimum wallet format version: memory-only variable that specifies to what version this wallet may be upgraded
int nWalletMaxVersion;
public:
mutable CCriticalSection cs_wallet;
bool fFileBacked;
std::string strWalletFile;
std::set<int64> setKeyPool;
typedef std::map<unsigned int, CMasterKey> MasterKeyMap;
MasterKeyMap mapMasterKeys;
unsigned int nMasterKeyMaxID;
CWallet()
{
nWalletVersion = FEATURE_BASE;
nWalletMaxVersion = FEATURE_BASE;
fFileBacked = false;
nMasterKeyMaxID = 0;
pwalletdbEncryption = NULL;
}
CWallet(std::string strWalletFileIn)
{
nWalletVersion = FEATURE_BASE;
nWalletMaxVersion = FEATURE_BASE;
strWalletFile = strWalletFileIn;
fFileBacked = true;
nMasterKeyMaxID = 0;
pwalletdbEncryption = NULL;
}
std::map<uint256, CWalletTx> mapWallet;
std::map<uint256, int> mapRequestCount;
std::map<CTxDestination, std::string> mapAddressBook;
CPubKey vchDefaultKey;
// check whether we are allowed to upgrade (or already support) to the named feature
bool CanSupportFeature(enum WalletFeature wf) { return nWalletMaxVersion >= wf; }
+ bool SelectCoinsMinConf(int64 nTargetValue, int nConfMine, int nConfTheirs, std::vector<COutput> vCoins, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const;
+
// keystore implementation
// Generate a new key
CPubKey GenerateNewKey();
// Adds a key to the store, and saves it to disk.
bool AddKey(const CKey& key);
// Adds a key to the store, without saving it to disk (used by LoadWallet)
bool LoadKey(const CKey& key) { return CCryptoKeyStore::AddKey(key); }
bool LoadMinVersion(int nVersion) { nWalletVersion = nVersion; nWalletMaxVersion = std::max(nWalletMaxVersion, nVersion); return true; }
// Adds an encrypted key to the store, and saves it to disk.
bool AddCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret);
// Adds an encrypted key to the store, without saving it to disk (used by LoadWallet)
bool LoadCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret) { SetMinVersion(FEATURE_WALLETCRYPT); return CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret); }
bool AddCScript(const CScript& redeemScript);
bool LoadCScript(const CScript& redeemScript) { return CCryptoKeyStore::AddCScript(redeemScript); }
bool Unlock(const SecureString& strWalletPassphrase);
bool ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase);
bool EncryptWallet(const SecureString& strWalletPassphrase);
void MarkDirty();
bool AddToWallet(const CWalletTx& wtxIn);
bool AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pblock, bool fUpdate = false, bool fFindBlock = false);
bool EraseFromWallet(uint256 hash);
void WalletUpdateSpent(const CTransaction& prevout);
int ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate = false);
int ScanForWalletTransaction(const uint256& hashTx);
void ReacceptWalletTransactions();
void ResendWalletTransactions();
int64 GetBalance() const;
int64 GetUnconfirmedBalance() const;
int64 GetImmatureBalance() const;
bool CreateTransaction(const std::vector<std::pair<CScript, int64> >& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet);
bool CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet);
bool CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey);
std::string SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
std::string SendMoneyToDestination(const CTxDestination &address, int64 nValue, CWalletTx& wtxNew, bool fAskFee=false);
bool NewKeyPool();
bool TopUpKeyPool();
int64 AddReserveKey(const CKeyPool& keypool);
void ReserveKeyFromKeyPool(int64& nIndex, CKeyPool& keypool);
void KeepKey(int64 nIndex);
void ReturnKey(int64 nIndex);
bool GetKeyFromPool(CPubKey &key, bool fAllowReuse=true);
int64 GetOldestKeyPoolTime();
void GetAllReserveKeys(std::set<CKeyID>& setAddress);
bool IsMine(const CTxIn& txin) const;
int64 GetDebit(const CTxIn& txin) const;
bool IsMine(const CTxOut& txout) const
{
return ::IsMine(*this, txout.scriptPubKey);
}
int64 GetCredit(const CTxOut& txout) const
{
if (!MoneyRange(txout.nValue))
throw std::runtime_error("CWallet::GetCredit() : value out of range");
return (IsMine(txout) ? txout.nValue : 0);
}
bool IsChange(const CTxOut& txout) const;
int64 GetChange(const CTxOut& txout) const
{
if (!MoneyRange(txout.nValue))
throw std::runtime_error("CWallet::GetChange() : value out of range");
return (IsChange(txout) ? txout.nValue : 0);
}
bool IsMine(const CTransaction& tx) const
{
BOOST_FOREACH(const CTxOut& txout, tx.vout)
if (IsMine(txout))
return true;
return false;
}
bool IsFromMe(const CTransaction& tx) const
{
return (GetDebit(tx) > 0);
}
int64 GetDebit(const CTransaction& tx) const
{
int64 nDebit = 0;
BOOST_FOREACH(const CTxIn& txin, tx.vin)
{
nDebit += GetDebit(txin);
if (!MoneyRange(nDebit))
throw std::runtime_error("CWallet::GetDebit() : value out of range");
}
return nDebit;
}
int64 GetCredit(const CTransaction& tx) const
{
int64 nCredit = 0;
BOOST_FOREACH(const CTxOut& txout, tx.vout)
{
nCredit += GetCredit(txout);
if (!MoneyRange(nCredit))
throw std::runtime_error("CWallet::GetCredit() : value out of range");
}
return nCredit;
}
int64 GetChange(const CTransaction& tx) const
{
int64 nChange = 0;
BOOST_FOREACH(const CTxOut& txout, tx.vout)
{
nChange += GetChange(txout);
if (!MoneyRange(nChange))
throw std::runtime_error("CWallet::GetChange() : value out of range");
}
return nChange;
}
void SetBestChain(const CBlockLocator& loc);
int LoadWallet(bool& fFirstRunRet);
bool SetAddressBookName(const CTxDestination& address, const std::string& strName);
bool DelAddressBookName(const CTxDestination& address);
void UpdatedTransaction(const uint256 &hashTx);
void PrintWallet(const CBlock& block);
void Inventory(const uint256 &hash)
{
{
LOCK(cs_wallet);
std::map<uint256, int>::iterator mi = mapRequestCount.find(hash);
if (mi != mapRequestCount.end())
(*mi).second++;
}
}
int GetKeyPoolSize()
{
return setKeyPool.size();
}
bool GetTransaction(const uint256 &hashTx, CWalletTx& wtx);
bool SetDefaultKey(const CPubKey &vchPubKey);
// signify that a particular wallet feature is now used. this may change nWalletVersion and nWalletMaxVersion if those are lower
bool SetMinVersion(enum WalletFeature, CWalletDB* pwalletdbIn = NULL, bool fExplicit = false);
// change which version we're allowed to upgrade to (note that this does not immediately imply upgrading to that format)
bool SetMaxVersion(int nVersion);
// get the current wallet format (the oldest client version guaranteed to understand this wallet)
int GetVersion() { return nWalletVersion; }
/** Address book entry changed.
* @note called with lock cs_wallet held.
*/
boost::signals2::signal<void (CWallet *wallet, const CTxDestination &address, const std::string &label, bool isMine, ChangeType status)> NotifyAddressBookChanged;
/** Wallet transaction added, removed or updated.
* @note called with lock cs_wallet held.
*/
boost::signals2::signal<void (CWallet *wallet, const uint256 &hashTx, ChangeType status)> NotifyTransactionChanged;
};
/** A key allocated from the key pool. */
class CReserveKey
{
protected:
CWallet* pwallet;
int64 nIndex;
CPubKey vchPubKey;
public:
CReserveKey(CWallet* pwalletIn)
{
nIndex = -1;
pwallet = pwalletIn;
}
~CReserveKey()
{
if (!fShutdown)
ReturnKey();
}
void ReturnKey();
CPubKey GetReservedKey();
void KeepKey();
};
/** A transaction with a bunch of additional info that only the owner cares about.
* It includes any unrecorded transactions needed to link it back to the block chain.
*/
class CWalletTx : public CMerkleTx
{
private:
const CWallet* pwallet;
public:
std::vector<CMerkleTx> vtxPrev;
std::map<std::string, std::string> mapValue;
std::vector<std::pair<std::string, std::string> > vOrderForm;
unsigned int fTimeReceivedIsTxTime;
unsigned int nTimeReceived; // time received by this node
char fFromMe;
std::string strFromAccount;
std::vector<char> vfSpent; // which outputs are already spent
// memory only
mutable bool fDebitCached;
mutable bool fCreditCached;
mutable bool fAvailableCreditCached;
mutable bool fChangeCached;
mutable int64 nDebitCached;
mutable int64 nCreditCached;
mutable int64 nAvailableCreditCached;
mutable int64 nChangeCached;
CWalletTx()
{
Init(NULL);
}
CWalletTx(const CWallet* pwalletIn)
{
Init(pwalletIn);
}
CWalletTx(const CWallet* pwalletIn, const CMerkleTx& txIn) : CMerkleTx(txIn)
{
Init(pwalletIn);
}
CWalletTx(const CWallet* pwalletIn, const CTransaction& txIn) : CMerkleTx(txIn)
{
Init(pwalletIn);
}
void Init(const CWallet* pwalletIn)
{
pwallet = pwalletIn;
vtxPrev.clear();
mapValue.clear();
vOrderForm.clear();
fTimeReceivedIsTxTime = false;
nTimeReceived = 0;
fFromMe = false;
strFromAccount.clear();
vfSpent.clear();
fDebitCached = false;
fCreditCached = false;
fAvailableCreditCached = false;
fChangeCached = false;
nDebitCached = 0;
nCreditCached = 0;
nAvailableCreditCached = 0;
nChangeCached = 0;
}
IMPLEMENT_SERIALIZE
(
CWalletTx* pthis = const_cast<CWalletTx*>(this);
if (fRead)
pthis->Init(NULL);
char fSpent = false;
if (!fRead)
{
pthis->mapValue["fromaccount"] = pthis->strFromAccount;
std::string str;
BOOST_FOREACH(char f, vfSpent)
{
str += (f ? '1' : '0');
if (f)
fSpent = true;
}
pthis->mapValue["spent"] = str;
}
nSerSize += SerReadWrite(s, *(CMerkleTx*)this, nType, nVersion,ser_action);
READWRITE(vtxPrev);
READWRITE(mapValue);
READWRITE(vOrderForm);
READWRITE(fTimeReceivedIsTxTime);
READWRITE(nTimeReceived);
READWRITE(fFromMe);
READWRITE(fSpent);
if (fRead)
{
pthis->strFromAccount = pthis->mapValue["fromaccount"];
if (mapValue.count("spent"))
BOOST_FOREACH(char c, pthis->mapValue["spent"])
pthis->vfSpent.push_back(c != '0');
else
pthis->vfSpent.assign(vout.size(), fSpent);
}
pthis->mapValue.erase("fromaccount");
pthis->mapValue.erase("version");
pthis->mapValue.erase("spent");
)
// marks certain txout's as spent
// returns true if any update took place
bool UpdateSpent(const std::vector<char>& vfNewSpent)
{
bool fReturn = false;
for (unsigned int i = 0; i < vfNewSpent.size(); i++)
{
if (i == vfSpent.size())
break;
if (vfNewSpent[i] && !vfSpent[i])
{
vfSpent[i] = true;
fReturn = true;
fAvailableCreditCached = false;
}
}
return fReturn;
}
// make sure balances are recalculated
void MarkDirty()
{
fCreditCached = false;
fAvailableCreditCached = false;
fDebitCached = false;
fChangeCached = false;
}
void BindWallet(CWallet *pwalletIn)
{
pwallet = pwalletIn;
MarkDirty();
}
void MarkSpent(unsigned int nOut)
{
if (nOut >= vout.size())
throw std::runtime_error("CWalletTx::MarkSpent() : nOut out of range");
vfSpent.resize(vout.size());
if (!vfSpent[nOut])
{
vfSpent[nOut] = true;
fAvailableCreditCached = false;
}
}
bool IsSpent(unsigned int nOut) const
{
if (nOut >= vout.size())
throw std::runtime_error("CWalletTx::IsSpent() : nOut out of range");
if (nOut >= vfSpent.size())
return false;
return (!!vfSpent[nOut]);
}
int64 GetDebit() const
{
if (vin.empty())
return 0;
if (fDebitCached)
return nDebitCached;
nDebitCached = pwallet->GetDebit(*this);
fDebitCached = true;
return nDebitCached;
}
int64 GetCredit(bool fUseCache=true) const
{
// Must wait until coinbase is safely deep enough in the chain before valuing it
if (IsCoinBase() && GetBlocksToMaturity() > 0)
return 0;
// GetBalance can assume transactions in mapWallet won't change
if (fUseCache && fCreditCached)
return nCreditCached;
nCreditCached = pwallet->GetCredit(*this);
fCreditCached = true;
return nCreditCached;
}
int64 GetAvailableCredit(bool fUseCache=true) const
{
// Must wait until coinbase is safely deep enough in the chain before valuing it
if (IsCoinBase() && GetBlocksToMaturity() > 0)
return 0;
if (fUseCache && fAvailableCreditCached)
return nAvailableCreditCached;
int64 nCredit = 0;
for (unsigned int i = 0; i < vout.size(); i++)
{
if (!IsSpent(i))
{
const CTxOut &txout = vout[i];
nCredit += pwallet->GetCredit(txout);
if (!MoneyRange(nCredit))
throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
}
}
nAvailableCreditCached = nCredit;
fAvailableCreditCached = true;
return nCredit;
}
int64 GetChange() const
{
if (fChangeCached)
return nChangeCached;
nChangeCached = pwallet->GetChange(*this);
fChangeCached = true;
return nChangeCached;
}
void GetAmounts(int64& nGeneratedImmature, int64& nGeneratedMature, std::list<std::pair<CTxDestination, int64> >& listReceived,
std::list<std::pair<CTxDestination, int64> >& listSent, int64& nFee, std::string& strSentAccount) const;
void GetAccountAmounts(const std::string& strAccount, int64& nGenerated, int64& nReceived,
int64& nSent, int64& nFee) const;
bool IsFromMe() const
{
return (GetDebit() > 0);
}
bool IsConfirmed() const
{
// Quick answer in most cases
if (!IsFinal())
return false;
if (GetDepthInMainChain() >= 1)
return true;
if (!IsFromMe()) // using wtx's cached debit
return false;
// If no confirmations but it's from us, we can still
// consider it confirmed if all dependencies are confirmed
std::map<uint256, const CMerkleTx*> mapPrev;
std::vector<const CMerkleTx*> vWorkQueue;
vWorkQueue.reserve(vtxPrev.size()+1);
vWorkQueue.push_back(this);
for (unsigned int i = 0; i < vWorkQueue.size(); i++)
{
const CMerkleTx* ptx = vWorkQueue[i];
if (!ptx->IsFinal())
return false;
if (ptx->GetDepthInMainChain() >= 1)
continue;
if (!pwallet->IsFromMe(*ptx))
return false;
if (mapPrev.empty())
{
BOOST_FOREACH(const CMerkleTx& tx, vtxPrev)
mapPrev[tx.GetHash()] = &tx;
}
BOOST_FOREACH(const CTxIn& txin, ptx->vin)
{
if (!mapPrev.count(txin.prevout.hash))
return false;
vWorkQueue.push_back(mapPrev[txin.prevout.hash]);
}
}
return true;
}
bool WriteToDisk();
int64 GetTxTime() const;
int GetRequestCount() const;
void AddSupportingTransactions(CTxDB& txdb);
bool AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs=true);
bool AcceptWalletTransaction();
void RelayWalletTransaction(CTxDB& txdb);
void RelayWalletTransaction();
};
+
+
+class COutput
+{
+public:
+ const CWalletTx *tx;
+ int i;
+ int nDepth;
+
+ COutput(const CWalletTx *txIn, int iIn, int nDepthIn)
+ {
+ tx = txIn; i = iIn; nDepth = nDepthIn;
+ }
+
+ std::string ToString() const
+ {
+ return strprintf("COutput(%s, %d, %d) [%s]", tx->GetHash().ToString().substr(0,10).c_str(), i, nDepth, FormatMoney(tx->vout[i].nValue).c_str());
+ }
+
+ void print() const
+ {
+ printf("%s\n", ToString().c_str());
+ }
+};
+
+
+
+
/** Private key that includes an expiration date in case it never gets used. */
class CWalletKey
{
public:
CPrivKey vchPrivKey;
int64 nTimeCreated;
int64 nTimeExpires;
std::string strComment;
//// todo: add something to note what created it (user, getnewaddress, change)
//// maybe should have a map<string, string> property map
CWalletKey(int64 nExpires=0)
{
nTimeCreated = (nExpires ? GetTime() : 0);
nTimeExpires = nExpires;
}
IMPLEMENT_SERIALIZE
(
if (!(nType & SER_GETHASH))
READWRITE(nVersion);
READWRITE(vchPrivKey);
READWRITE(nTimeCreated);
READWRITE(nTimeExpires);
READWRITE(strComment);
)
};
/** Account information.
* Stored in wallet with key "acc"+string account name.
*/
class CAccount
{
public:
CPubKey vchPubKey;
CAccount()
{
SetNull();
}
void SetNull()
{
vchPubKey = CPubKey();
}
IMPLEMENT_SERIALIZE
(
if (!(nType & SER_GETHASH))
READWRITE(nVersion);
READWRITE(vchPubKey);
)
};
/** Internal transfers.
* Database key is acentry<account><counter>.
*/
class CAccountingEntry
{
public:
std::string strAccount;
int64 nCreditDebit;
int64 nTime;
std::string strOtherAccount;
std::string strComment;
CAccountingEntry()
{
SetNull();
}
void SetNull()
{
nCreditDebit = 0;
nTime = 0;
strAccount.clear();
strOtherAccount.clear();
strComment.clear();
}
IMPLEMENT_SERIALIZE
(
if (!(nType & SER_GETHASH))
READWRITE(nVersion);
// Note: strAccount is serialized as part of the key, not here.
READWRITE(nCreditDebit);
READWRITE(nTime);
READWRITE(strOtherAccount);
READWRITE(strComment);
)
};
bool GetWalletFile(CWallet* pwallet, std::string &strWalletFileOut);
#endif

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