1769 lines
57 KiB
C++
1769 lines
57 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2012 The Bitcoin developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "wallet.h"
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#include "walletdb.h"
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#include "crypter.h"
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#include "ui_interface.h"
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#include "base58.h"
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using namespace std;
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//////////////////////////////////////////////////////////////////////////////
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//
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// mapWallet
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//
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struct CompareValueOnly
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{
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bool operator()(const pair<int64, pair<const CWalletTx*, unsigned int> >& t1,
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const pair<int64, pair<const CWalletTx*, unsigned int> >& t2) const
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{
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return t1.first < t2.first;
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}
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};
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CPubKey CWallet::GenerateNewKey()
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{
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bool fCompressed = CanSupportFeature(FEATURE_COMPRPUBKEY); // default to compressed public keys if we want 0.6.0 wallets
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RandAddSeedPerfmon();
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CKey key;
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key.MakeNewKey(fCompressed);
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// Compressed public keys were introduced in version 0.6.0
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if (fCompressed)
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SetMinVersion(FEATURE_COMPRPUBKEY);
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if (!AddKey(key))
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throw std::runtime_error("CWallet::GenerateNewKey() : AddKey failed");
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return key.GetPubKey();
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}
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bool CWallet::AddKey(const CKey& key)
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{
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if (!CCryptoKeyStore::AddKey(key))
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return false;
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if (!fFileBacked)
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return true;
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if (!IsCrypted())
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return CWalletDB(strWalletFile).WriteKey(key.GetPubKey(), key.GetPrivKey());
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return true;
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}
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bool CWallet::AddCryptedKey(const CPubKey &vchPubKey, const vector<unsigned char> &vchCryptedSecret)
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{
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if (!CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret))
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return false;
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if (!fFileBacked)
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return true;
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{
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LOCK(cs_wallet);
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if (pwalletdbEncryption)
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return pwalletdbEncryption->WriteCryptedKey(vchPubKey, vchCryptedSecret);
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else
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return CWalletDB(strWalletFile).WriteCryptedKey(vchPubKey, vchCryptedSecret);
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}
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return false;
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}
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bool CWallet::AddCScript(const CScript& redeemScript)
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{
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if (!CCryptoKeyStore::AddCScript(redeemScript))
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return false;
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if (!fFileBacked)
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return true;
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return CWalletDB(strWalletFile).WriteCScript(Hash160(redeemScript), redeemScript);
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}
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bool CWallet::Unlock(const SecureString& strWalletPassphrase)
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{
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if (!IsLocked())
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return false;
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CCrypter crypter;
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CKeyingMaterial vMasterKey;
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{
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LOCK(cs_wallet);
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BOOST_FOREACH(const MasterKeyMap::value_type& pMasterKey, mapMasterKeys)
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{
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if(!crypter.SetKeyFromPassphrase(strWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
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return false;
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if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
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return false;
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if (CCryptoKeyStore::Unlock(vMasterKey))
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return true;
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}
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}
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return false;
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}
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bool CWallet::ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase)
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{
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bool fWasLocked = IsLocked();
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{
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LOCK(cs_wallet);
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Lock();
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CCrypter crypter;
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CKeyingMaterial vMasterKey;
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BOOST_FOREACH(MasterKeyMap::value_type& pMasterKey, mapMasterKeys)
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{
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if(!crypter.SetKeyFromPassphrase(strOldWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
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return false;
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if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
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return false;
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if (CCryptoKeyStore::Unlock(vMasterKey))
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{
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int64 nStartTime = GetTimeMillis();
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crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
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pMasterKey.second.nDeriveIterations = pMasterKey.second.nDeriveIterations * (100 / ((double)(GetTimeMillis() - nStartTime)));
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nStartTime = GetTimeMillis();
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crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
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pMasterKey.second.nDeriveIterations = (pMasterKey.second.nDeriveIterations + pMasterKey.second.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime))) / 2;
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if (pMasterKey.second.nDeriveIterations < 25000)
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pMasterKey.second.nDeriveIterations = 25000;
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printf("Wallet passphrase changed to an nDeriveIterations of %i\n", pMasterKey.second.nDeriveIterations);
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if (!crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
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return false;
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if (!crypter.Encrypt(vMasterKey, pMasterKey.second.vchCryptedKey))
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return false;
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CWalletDB(strWalletFile).WriteMasterKey(pMasterKey.first, pMasterKey.second);
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if (fWasLocked)
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Lock();
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return true;
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}
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}
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}
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return false;
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}
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void CWallet::SetBestChain(const CBlockLocator& loc)
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{
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CWalletDB walletdb(strWalletFile);
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walletdb.WriteBestBlock(loc);
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}
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// This class implements an addrIncoming entry that causes pre-0.4
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// clients to crash on startup if reading a private-key-encrypted wallet.
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class CCorruptAddress
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{
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public:
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IMPLEMENT_SERIALIZE
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(
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if (nType & SER_DISK)
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READWRITE(nVersion);
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)
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};
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bool CWallet::SetMinVersion(enum WalletFeature nVersion, CWalletDB* pwalletdbIn, bool fExplicit)
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{
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if (nWalletVersion >= nVersion)
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return true;
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// when doing an explicit upgrade, if we pass the max version permitted, upgrade all the way
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if (fExplicit && nVersion > nWalletMaxVersion)
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nVersion = FEATURE_LATEST;
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nWalletVersion = nVersion;
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if (nVersion > nWalletMaxVersion)
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nWalletMaxVersion = nVersion;
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if (fFileBacked)
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{
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CWalletDB* pwalletdb = pwalletdbIn ? pwalletdbIn : new CWalletDB(strWalletFile);
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if (nWalletVersion >= 40000)
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{
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// Versions prior to 0.4.0 did not support the "minversion" record.
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// Use a CCorruptAddress to make them crash instead.
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CCorruptAddress corruptAddress;
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pwalletdb->WriteSetting("addrIncoming", corruptAddress);
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}
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if (nWalletVersion > 40000)
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pwalletdb->WriteMinVersion(nWalletVersion);
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if (!pwalletdbIn)
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delete pwalletdb;
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}
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return true;
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}
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bool CWallet::SetMaxVersion(int nVersion)
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{
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// cannot downgrade below current version
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if (nWalletVersion > nVersion)
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return false;
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nWalletMaxVersion = nVersion;
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return true;
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}
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bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase)
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{
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if (IsCrypted())
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return false;
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CKeyingMaterial vMasterKey;
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RandAddSeedPerfmon();
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vMasterKey.resize(WALLET_CRYPTO_KEY_SIZE);
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RAND_bytes(&vMasterKey[0], WALLET_CRYPTO_KEY_SIZE);
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CMasterKey kMasterKey;
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RandAddSeedPerfmon();
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kMasterKey.vchSalt.resize(WALLET_CRYPTO_SALT_SIZE);
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RAND_bytes(&kMasterKey.vchSalt[0], WALLET_CRYPTO_SALT_SIZE);
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CCrypter crypter;
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int64 nStartTime = GetTimeMillis();
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crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, 25000, kMasterKey.nDerivationMethod);
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kMasterKey.nDeriveIterations = 2500000 / ((double)(GetTimeMillis() - nStartTime));
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nStartTime = GetTimeMillis();
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crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod);
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kMasterKey.nDeriveIterations = (kMasterKey.nDeriveIterations + kMasterKey.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime))) / 2;
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if (kMasterKey.nDeriveIterations < 25000)
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kMasterKey.nDeriveIterations = 25000;
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printf("Encrypting Wallet with an nDeriveIterations of %i\n", kMasterKey.nDeriveIterations);
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if (!crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod))
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return false;
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if (!crypter.Encrypt(vMasterKey, kMasterKey.vchCryptedKey))
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return false;
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{
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LOCK(cs_wallet);
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mapMasterKeys[++nMasterKeyMaxID] = kMasterKey;
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if (fFileBacked)
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{
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pwalletdbEncryption = new CWalletDB(strWalletFile);
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if (!pwalletdbEncryption->TxnBegin())
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return false;
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pwalletdbEncryption->WriteMasterKey(nMasterKeyMaxID, kMasterKey);
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}
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if (!EncryptKeys(vMasterKey))
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{
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if (fFileBacked)
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pwalletdbEncryption->TxnAbort();
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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.
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}
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// Encryption was introduced in version 0.4.0
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SetMinVersion(FEATURE_WALLETCRYPT, pwalletdbEncryption, true);
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if (fFileBacked)
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{
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if (!pwalletdbEncryption->TxnCommit())
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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.
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delete pwalletdbEncryption;
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pwalletdbEncryption = NULL;
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}
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Lock();
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Unlock(strWalletPassphrase);
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NewKeyPool();
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Lock();
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// Need to completely rewrite the wallet file; if we don't, bdb might keep
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// bits of the unencrypted private key in slack space in the database file.
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CDB::Rewrite(strWalletFile);
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}
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NotifyStatusChanged(this);
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return true;
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}
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int64 CWallet::IncOrderPosNext()
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{
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int64 nRet = nOrderPosNext;
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CWalletDB(strWalletFile).WriteOrderPosNext(++nOrderPosNext);
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return nRet;
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}
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CWallet::TxItems CWallet::OrderedTxItems(std::list<CAccountingEntry>& acentries, std::string strAccount)
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{
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CWalletDB walletdb(strWalletFile);
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// First: get all CWalletTx and CAccountingEntry into a sorted-by-order multimap.
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TxItems txOrdered;
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// Note: maintaining indices in the database of (account,time) --> txid and (account, time) --> acentry
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// would make this much faster for applications that do this a lot.
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for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
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{
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CWalletTx* wtx = &((*it).second);
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txOrdered.insert(make_pair(wtx->nOrderPos, TxPair(wtx, (CAccountingEntry*)0)));
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}
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acentries.clear();
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walletdb.ListAccountCreditDebit(strAccount, acentries);
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BOOST_FOREACH(CAccountingEntry& entry, acentries)
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{
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txOrdered.insert(make_pair(entry.nOrderPos, TxPair((CWalletTx*)0, &entry)));
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}
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return txOrdered;
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}
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void CWallet::WalletUpdateSpent(const CTransaction &tx)
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{
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// Anytime a signature is successfully verified, it's proof the outpoint is spent.
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// Update the wallet spent flag if it doesn't know due to wallet.dat being
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// restored from backup or the user making copies of wallet.dat.
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{
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LOCK(cs_wallet);
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BOOST_FOREACH(const CTxIn& txin, tx.vin)
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{
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map<uint256, CWalletTx>::iterator mi = mapWallet.find(txin.prevout.hash);
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if (mi != mapWallet.end())
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{
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CWalletTx& wtx = (*mi).second;
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if (txin.prevout.n >= wtx.vout.size())
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printf("WalletUpdateSpent: bad wtx %s\n", wtx.GetHash().ToString().c_str());
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else if (!wtx.IsSpent(txin.prevout.n) && IsMine(wtx.vout[txin.prevout.n]))
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{
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printf("WalletUpdateSpent found spent coin %sbc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
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wtx.MarkSpent(txin.prevout.n);
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wtx.WriteToDisk();
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NotifyTransactionChanged(this, txin.prevout.hash, CT_UPDATED);
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}
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}
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}
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}
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}
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void CWallet::MarkDirty()
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{
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{
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LOCK(cs_wallet);
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BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
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item.second.MarkDirty();
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}
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}
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bool CWallet::AddToWallet(const CWalletTx& wtxIn)
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{
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uint256 hash = wtxIn.GetHash();
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{
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LOCK(cs_wallet);
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// Inserts only if not already there, returns tx inserted or tx found
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pair<map<uint256, CWalletTx>::iterator, bool> ret = mapWallet.insert(make_pair(hash, wtxIn));
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CWalletTx& wtx = (*ret.first).second;
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wtx.BindWallet(this);
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bool fInsertedNew = ret.second;
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if (fInsertedNew)
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{
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wtx.nTimeReceived = GetAdjustedTime();
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wtx.nOrderPos = IncOrderPosNext();
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wtx.nTimeSmart = wtx.nTimeReceived;
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if (wtxIn.hashBlock != 0)
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{
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if (mapBlockIndex.count(wtxIn.hashBlock))
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{
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unsigned int latestNow = wtx.nTimeReceived;
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unsigned int latestEntry = 0;
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{
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// Tolerate times up to the last timestamp in the wallet not more than 5 minutes into the future
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int64 latestTolerated = latestNow + 300;
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std::list<CAccountingEntry> acentries;
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TxItems txOrdered = OrderedTxItems(acentries);
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for (TxItems::reverse_iterator it = txOrdered.rbegin(); it != txOrdered.rend(); ++it)
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{
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CWalletTx *const pwtx = (*it).second.first;
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if (pwtx == &wtx)
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continue;
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CAccountingEntry *const pacentry = (*it).second.second;
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int64 nSmartTime;
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if (pwtx)
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{
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nSmartTime = pwtx->nTimeSmart;
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if (!nSmartTime)
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nSmartTime = pwtx->nTimeReceived;
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}
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else
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nSmartTime = pacentry->nTime;
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if (nSmartTime <= latestTolerated)
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{
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latestEntry = nSmartTime;
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if (nSmartTime > latestNow)
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latestNow = nSmartTime;
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break;
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}
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}
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}
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unsigned int& blocktime = mapBlockIndex[wtxIn.hashBlock]->nTime;
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wtx.nTimeSmart = std::max(latestEntry, std::min(blocktime, latestNow));
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}
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else
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printf("AddToWallet() : found %s in block %s not in index\n",
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wtxIn.GetHash().ToString().substr(0,10).c_str(),
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wtxIn.hashBlock.ToString().c_str());
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}
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}
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bool fUpdated = false;
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if (!fInsertedNew)
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{
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// Merge
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if (wtxIn.hashBlock != 0 && wtxIn.hashBlock != wtx.hashBlock)
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{
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wtx.hashBlock = wtxIn.hashBlock;
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fUpdated = true;
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}
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if (wtxIn.nIndex != -1 && (wtxIn.vMerkleBranch != wtx.vMerkleBranch || wtxIn.nIndex != wtx.nIndex))
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{
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wtx.vMerkleBranch = wtxIn.vMerkleBranch;
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wtx.nIndex = wtxIn.nIndex;
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fUpdated = true;
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}
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if (wtxIn.fFromMe && wtxIn.fFromMe != wtx.fFromMe)
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{
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wtx.fFromMe = wtxIn.fFromMe;
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fUpdated = true;
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}
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fUpdated |= wtx.UpdateSpent(wtxIn.vfSpent);
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}
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//// debug print
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printf("AddToWallet %s %s%s\n", wtxIn.GetHash().ToString().substr(0,10).c_str(), (fInsertedNew ? "new" : ""), (fUpdated ? "update" : ""));
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// Write to disk
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if (fInsertedNew || fUpdated)
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if (!wtx.WriteToDisk())
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return false;
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#ifndef QT_GUI
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// If default receiving address gets used, replace it with a new one
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CScript scriptDefaultKey;
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scriptDefaultKey.SetDestination(vchDefaultKey.GetID());
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BOOST_FOREACH(const CTxOut& txout, wtx.vout)
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{
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if (txout.scriptPubKey == scriptDefaultKey)
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{
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CPubKey newDefaultKey;
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if (GetKeyFromPool(newDefaultKey, false))
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{
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SetDefaultKey(newDefaultKey);
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SetAddressBookName(vchDefaultKey.GetID(), "");
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}
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}
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}
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#endif
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// since AddToWallet is called directly for self-originating transactions, check for consumption of own coins
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WalletUpdateSpent(wtx);
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// Notify UI of new or updated transaction
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NotifyTransactionChanged(this, hash, fInsertedNew ? CT_NEW : CT_UPDATED);
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}
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return true;
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}
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// Add a transaction to the wallet, or update it.
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// pblock is optional, but should be provided if the transaction is known to be in a block.
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// If fUpdate is true, existing transactions will be updated.
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bool CWallet::AddToWalletIfInvolvingMe(const uint256 &hash, const CTransaction& tx, const CBlock* pblock, bool fUpdate, bool fFindBlock)
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{
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|
{
|
|
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
|
|
{
|
|
int64 n = nTimeSmart;
|
|
return n ? n : 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(list<pair<CTxDestination, int64> >& listReceived,
|
|
list<pair<CTxDestination, int64> >& listSent, int64& nFee, string& strSentAccount) const
|
|
{
|
|
nFee = 0;
|
|
listReceived.clear();
|
|
listSent.clear();
|
|
strSentAccount = strFromAccount;
|
|
|
|
// 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& nReceived,
|
|
int64& nSent, int64& nFee) const
|
|
{
|
|
nReceived = nSent = nFee = 0;
|
|
|
|
int64 allFee;
|
|
string strSentAccount;
|
|
list<pair<CTxDestination, int64> > listReceived;
|
|
list<pair<CTxDestination, int64> > listSent;
|
|
GetAmounts(listReceived, listSent, allFee, strSentAccount);
|
|
|
|
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()
|
|
{
|
|
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);
|
|
|
|
{
|
|
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];
|
|
}
|
|
|
|
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);
|
|
BOOST_FOREACH(CTransaction& tx, block.vtx)
|
|
{
|
|
if (AddToWalletIfInvolvingMe(tx.GetHash(), tx, &block, fUpdate))
|
|
ret++;
|
|
}
|
|
pindex = pindex->pnext;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void CWallet::ReacceptWalletTransactions()
|
|
{
|
|
bool fRepeat = true;
|
|
while (fRepeat)
|
|
{
|
|
LOCK(cs_wallet);
|
|
fRepeat = false;
|
|
bool fMissing = false;
|
|
BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
|
|
{
|
|
CWalletTx& wtx = item.second;
|
|
if (wtx.IsCoinBase() && wtx.IsSpent(0))
|
|
continue;
|
|
|
|
CCoins coins;
|
|
bool fUpdated = false;
|
|
bool fFound = pcoinsTip->GetCoins(wtx.GetHash(), coins);
|
|
if (fFound || wtx.GetDepthInMainChain() > 0)
|
|
{
|
|
// Update fSpent if a tx got spent somewhere else by a copy of wallet.dat
|
|
for (unsigned int i = 0; i < wtx.vout.size(); i++)
|
|
{
|
|
if (wtx.IsSpent(i))
|
|
continue;
|
|
if ((i >= coins.vout.size() || coins.vout[i].IsNull()) && IsMine(wtx.vout[i]))
|
|
{
|
|
wtx.MarkSpent(i);
|
|
fUpdated = true;
|
|
fMissing = true;
|
|
}
|
|
}
|
|
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
|
|
{
|
|
// Re-accept any txes of ours that aren't already in a block
|
|
if (!wtx.IsCoinBase())
|
|
wtx.AcceptWalletTransaction(false);
|
|
}
|
|
}
|
|
if (fMissing)
|
|
{
|
|
// TODO: optimize this to scan just part of the block chain?
|
|
if (ScanForWalletTransactions(pindexGenesisBlock))
|
|
fRepeat = true; // Found missing transactions: re-do re-accept.
|
|
}
|
|
}
|
|
}
|
|
|
|
void CWalletTx::RelayWalletTransaction()
|
|
{
|
|
BOOST_FOREACH(const CMerkleTx& tx, vtxPrev)
|
|
{
|
|
if (!tx.IsCoinBase()) {
|
|
if (tx.GetDepthInMainChain() == 0)
|
|
RelayMessage(CInv(MSG_TX, tx.GetHash()), (CTransaction)tx);
|
|
}
|
|
}
|
|
if (!IsCoinBase())
|
|
{
|
|
if (GetDepthInMainChain() == 0) {
|
|
uint256 hash = GetHash();
|
|
printf("Relaying wtx %s\n", hash.ToString().substr(0,10).c_str());
|
|
RelayMessage(CInv(MSG_TX, hash), (CTransaction)*this);
|
|
}
|
|
}
|
|
}
|
|
|
|
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");
|
|
{
|
|
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();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// 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;
|
|
nTotal += pcoin->GetImmatureCredit();
|
|
}
|
|
}
|
|
return nTotal;
|
|
}
|
|
|
|
// populate vCoins with vector of spendable COutputs
|
|
void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed) const
|
|
{
|
|
vCoins.clear();
|
|
|
|
{
|
|
LOCK(cs_wallet);
|
|
for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
|
|
{
|
|
const CWalletTx* pcoin = &(*it).second;
|
|
|
|
if (!pcoin->IsFinal())
|
|
continue;
|
|
|
|
if (fOnlyConfirmed && !pcoin->IsConfirmed())
|
|
continue;
|
|
|
|
if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0)
|
|
continue;
|
|
|
|
for (unsigned int i = 0; i < pcoin->vout.size(); i++)
|
|
if (!(pcoin->IsSpent(i)) && IsMine(pcoin->vout[i]) && pcoin->vout[i].nValue > 0)
|
|
vCoins.push_back(COutput(pcoin, i, pcoin->GetDepthInMainChain()));
|
|
}
|
|
}
|
|
}
|
|
|
|
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;
|
|
|
|
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 (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
|
|
{
|
|
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);
|
|
{
|
|
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();
|
|
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);
|
|
}
|
|
|
|
|
|
|
|
|
|
DBErrors CWallet::LoadWallet(bool& fFirstRunRet)
|
|
{
|
|
if (!fFileBacked)
|
|
return DB_LOAD_OK;
|
|
fFirstRunRet = false;
|
|
DBErrors 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.
|
|
}
|
|
}
|
|
|
|
if (nLoadWalletRet != DB_LOAD_OK)
|
|
return nLoadWalletRet;
|
|
fFirstRunRet = !vchDefaultKey.IsValid();
|
|
|
|
NewThread(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 %"PRI64d"", 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=%"PRIszu"\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;
|
|
}
|
|
|
|
std::map<CTxDestination, int64> CWallet::GetAddressBalances()
|
|
{
|
|
map<CTxDestination, int64> balances;
|
|
|
|
{
|
|
LOCK(cs_wallet);
|
|
BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet)
|
|
{
|
|
CWalletTx *pcoin = &walletEntry.second;
|
|
|
|
if (!pcoin->IsFinal() || !pcoin->IsConfirmed())
|
|
continue;
|
|
|
|
if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0)
|
|
continue;
|
|
|
|
int nDepth = pcoin->GetDepthInMainChain();
|
|
if (nDepth < (pcoin->IsFromMe() ? 0 : 1))
|
|
continue;
|
|
|
|
for (unsigned int i = 0; i < pcoin->vout.size(); i++)
|
|
{
|
|
CTxDestination addr;
|
|
if (!IsMine(pcoin->vout[i]))
|
|
continue;
|
|
if(!ExtractDestination(pcoin->vout[i].scriptPubKey, addr))
|
|
continue;
|
|
|
|
int64 n = pcoin->IsSpent(i) ? 0 : pcoin->vout[i].nValue;
|
|
|
|
if (!balances.count(addr))
|
|
balances[addr] = 0;
|
|
balances[addr] += n;
|
|
}
|
|
}
|
|
}
|
|
|
|
return balances;
|
|
}
|
|
|
|
set< set<CTxDestination> > CWallet::GetAddressGroupings()
|
|
{
|
|
set< set<CTxDestination> > groupings;
|
|
set<CTxDestination> grouping;
|
|
|
|
BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet)
|
|
{
|
|
CWalletTx *pcoin = &walletEntry.second;
|
|
|
|
if (pcoin->vin.size() > 0 && IsMine(pcoin->vin[0]))
|
|
{
|
|
// group all input addresses with each other
|
|
BOOST_FOREACH(CTxIn txin, pcoin->vin)
|
|
{
|
|
CTxDestination address;
|
|
if(!ExtractDestination(mapWallet[txin.prevout.hash].vout[txin.prevout.n].scriptPubKey, address))
|
|
continue;
|
|
grouping.insert(address);
|
|
}
|
|
|
|
// group change with input addresses
|
|
BOOST_FOREACH(CTxOut txout, pcoin->vout)
|
|
if (IsChange(txout))
|
|
{
|
|
CWalletTx tx = mapWallet[pcoin->vin[0].prevout.hash];
|
|
CTxDestination txoutAddr;
|
|
if(!ExtractDestination(txout.scriptPubKey, txoutAddr))
|
|
continue;
|
|
grouping.insert(txoutAddr);
|
|
}
|
|
groupings.insert(grouping);
|
|
grouping.clear();
|
|
}
|
|
|
|
// group lone addrs by themselves
|
|
for (unsigned int i = 0; i < pcoin->vout.size(); i++)
|
|
if (IsMine(pcoin->vout[i]))
|
|
{
|
|
CTxDestination address;
|
|
if(!ExtractDestination(pcoin->vout[i].scriptPubKey, address))
|
|
continue;
|
|
grouping.insert(address);
|
|
groupings.insert(grouping);
|
|
grouping.clear();
|
|
}
|
|
}
|
|
|
|
set< set<CTxDestination>* > uniqueGroupings; // a set of pointers to groups of addresses
|
|
map< CTxDestination, set<CTxDestination>* > setmap; // map addresses to the unique group containing it
|
|
BOOST_FOREACH(set<CTxDestination> grouping, groupings)
|
|
{
|
|
// make a set of all the groups hit by this new group
|
|
set< set<CTxDestination>* > hits;
|
|
map< CTxDestination, set<CTxDestination>* >::iterator it;
|
|
BOOST_FOREACH(CTxDestination address, grouping)
|
|
if ((it = setmap.find(address)) != setmap.end())
|
|
hits.insert((*it).second);
|
|
|
|
// merge all hit groups into a new single group and delete old groups
|
|
set<CTxDestination>* merged = new set<CTxDestination>(grouping);
|
|
BOOST_FOREACH(set<CTxDestination>* hit, hits)
|
|
{
|
|
merged->insert(hit->begin(), hit->end());
|
|
uniqueGroupings.erase(hit);
|
|
delete hit;
|
|
}
|
|
uniqueGroupings.insert(merged);
|
|
|
|
// update setmap
|
|
BOOST_FOREACH(CTxDestination element, *merged)
|
|
setmap[element] = merged;
|
|
}
|
|
|
|
set< set<CTxDestination> > ret;
|
|
BOOST_FOREACH(set<CTxDestination>* uniqueGrouping, uniqueGroupings)
|
|
{
|
|
ret.insert(*uniqueGrouping);
|
|
delete uniqueGrouping;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|