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2069 lines
68 KiB
2069 lines
68 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto |
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// Copyright (c) 2009-2014 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 "base58.h" |
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#include "coincontrol.h" |
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#include "net.h" |
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#include <boost/algorithm/string/replace.hpp> |
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#include <openssl/rand.h> |
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using namespace std; |
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// Settings |
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int64_t nTransactionFee = 0; |
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bool bSpendZeroConfChange = true; |
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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_t, pair<const CWalletTx*, unsigned int> >& t1, |
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const pair<int64_t, 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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const CWalletTx* CWallet::GetWalletTx(const uint256& hash) const |
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{ |
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LOCK(cs_wallet); |
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std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(hash); |
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if (it == mapWallet.end()) |
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return NULL; |
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return &(it->second); |
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} |
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CPubKey CWallet::GenerateNewKey() |
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{ |
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AssertLockHeld(cs_wallet); // mapKeyMetadata |
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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 secret; |
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secret.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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CPubKey pubkey = secret.GetPubKey(); |
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// Create new metadata |
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int64_t nCreationTime = GetTime(); |
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mapKeyMetadata[pubkey.GetID()] = CKeyMetadata(nCreationTime); |
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if (!nTimeFirstKey || nCreationTime < nTimeFirstKey) |
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nTimeFirstKey = nCreationTime; |
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if (!AddKeyPubKey(secret, pubkey)) |
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throw std::runtime_error("CWallet::GenerateNewKey() : AddKey failed"); |
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return pubkey; |
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} |
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bool CWallet::AddKeyPubKey(const CKey& secret, const CPubKey &pubkey) |
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{ |
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AssertLockHeld(cs_wallet); // mapKeyMetadata |
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if (!CCryptoKeyStore::AddKeyPubKey(secret, pubkey)) |
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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(pubkey, |
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secret.GetPrivKey(), |
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mapKeyMetadata[pubkey.GetID()]); |
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} |
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return true; |
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} |
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bool CWallet::AddCryptedKey(const CPubKey &vchPubKey, |
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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, |
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vchCryptedSecret, |
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mapKeyMetadata[vchPubKey.GetID()]); |
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else |
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return CWalletDB(strWalletFile).WriteCryptedKey(vchPubKey, |
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vchCryptedSecret, |
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mapKeyMetadata[vchPubKey.GetID()]); |
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} |
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return false; |
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} |
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bool CWallet::LoadKeyMetadata(const CPubKey &pubkey, const CKeyMetadata &meta) |
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{ |
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AssertLockHeld(cs_wallet); // mapKeyMetadata |
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if (meta.nCreateTime && (!nTimeFirstKey || meta.nCreateTime < nTimeFirstKey)) |
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nTimeFirstKey = meta.nCreateTime; |
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mapKeyMetadata[pubkey.GetID()] = meta; |
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return true; |
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} |
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bool CWallet::LoadCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret) |
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{ |
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return CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret); |
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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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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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continue; // try another master key |
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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_t 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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LogPrintf("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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bool CWallet::SetMinVersion(enum WalletFeature nVersion, CWalletDB* pwalletdbIn, bool fExplicit) |
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{ |
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LOCK(cs_wallet); // nWalletVersion |
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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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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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LOCK(cs_wallet); // nWalletVersion, nWalletMaxVersion |
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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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set<uint256> CWallet::GetConflicts(const uint256& txid) const |
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{ |
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set<uint256> result; |
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AssertLockHeld(cs_wallet); |
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std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(txid); |
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if (it == mapWallet.end()) |
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return result; |
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const CWalletTx& wtx = it->second; |
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std::pair<TxSpends::const_iterator, TxSpends::const_iterator> range; |
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BOOST_FOREACH(const CTxIn& txin, wtx.vin) |
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{ |
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if (mapTxSpends.count(txin.prevout) <= 1) |
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continue; // No conflict if zero or one spends |
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range = mapTxSpends.equal_range(txin.prevout); |
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for (TxSpends::const_iterator it = range.first; it != range.second; ++it) |
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result.insert(it->second); |
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} |
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return result; |
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} |
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void CWallet::SyncMetaData(pair<TxSpends::iterator, TxSpends::iterator> range) |
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{ |
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// We want all the wallet transactions in range to have the same metadata as |
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// the oldest (smallest nOrderPos). |
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// So: find smallest nOrderPos: |
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int nMinOrderPos = std::numeric_limits<int>::max(); |
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const CWalletTx* copyFrom = NULL; |
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for (TxSpends::iterator it = range.first; it != range.second; ++it) |
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{ |
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const uint256& hash = it->second; |
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int n = mapWallet[hash].nOrderPos; |
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if (n < nMinOrderPos) |
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{ |
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nMinOrderPos = n; |
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copyFrom = &mapWallet[hash]; |
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} |
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} |
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// Now copy data from copyFrom to rest: |
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for (TxSpends::iterator it = range.first; it != range.second; ++it) |
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{ |
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const uint256& hash = it->second; |
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CWalletTx* copyTo = &mapWallet[hash]; |
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if (copyFrom == copyTo) continue; |
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copyTo->mapValue = copyFrom->mapValue; |
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copyTo->vOrderForm = copyFrom->vOrderForm; |
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// fTimeReceivedIsTxTime not copied on purpose |
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// nTimeReceived not copied on purpose |
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copyTo->nTimeSmart = copyFrom->nTimeSmart; |
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copyTo->fFromMe = copyFrom->fFromMe; |
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copyTo->strFromAccount = copyFrom->strFromAccount; |
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// nOrderPos not copied on purpose |
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// cached members not copied on purpose |
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} |
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} |
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// Outpoint is spent if any non-conflicted transaction |
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// spends it: |
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bool CWallet::IsSpent(const uint256& hash, unsigned int n) const |
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{ |
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const COutPoint outpoint(hash, n); |
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pair<TxSpends::const_iterator, TxSpends::const_iterator> range; |
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range = mapTxSpends.equal_range(outpoint); |
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for (TxSpends::const_iterator it = range.first; it != range.second; ++it) |
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{ |
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const uint256& wtxid = it->second; |
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std::map<uint256, CWalletTx>::const_iterator mit = mapWallet.find(wtxid); |
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if (mit != mapWallet.end() && mit->second.GetDepthInMainChain() >= 0) |
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return true; // Spent |
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} |
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return false; |
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} |
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void CWallet::AddToSpends(const COutPoint& outpoint, const uint256& wtxid) |
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{ |
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mapTxSpends.insert(make_pair(outpoint, wtxid)); |
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pair<TxSpends::iterator, TxSpends::iterator> range; |
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range = mapTxSpends.equal_range(outpoint); |
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SyncMetaData(range); |
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} |
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void CWallet::AddToSpends(const uint256& wtxid) |
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{ |
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assert(mapWallet.count(wtxid)); |
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CWalletTx& thisTx = mapWallet[wtxid]; |
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if (thisTx.IsCoinBase()) // Coinbases don't spend anything! |
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return; |
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BOOST_FOREACH(const CTxIn& txin, thisTx.vin) |
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AddToSpends(txin.prevout, wtxid); |
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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_t 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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LogPrintf("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_t CWallet::IncOrderPosNext(CWalletDB *pwalletdb) |
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{ |
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AssertLockHeld(cs_wallet); // nOrderPosNext |
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int64_t nRet = nOrderPosNext++; |
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if (pwalletdb) { |
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pwalletdb->WriteOrderPosNext(nOrderPosNext); |
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} else { |
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CWalletDB(strWalletFile).WriteOrderPosNext(nOrderPosNext); |
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} |
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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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AssertLockHeld(cs_wallet); // mapWallet |
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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::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, bool fFromLoadWallet) |
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{ |
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uint256 hash = wtxIn.GetHash(); |
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if (fFromLoadWallet) |
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{ |
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mapWallet[hash] = wtxIn; |
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AddToSpends(hash); |
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} |
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else |
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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_t 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_t 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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|
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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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LogPrintf("AddToWallet() : found %s in block %s not in index\n", |
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wtxIn.GetHash().ToString(), |
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wtxIn.hashBlock.ToString()); |
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} |
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AddToSpends(hash); |
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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 |
|
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; |
|
} |
|
} |
|
|
|
//// debug print |
|
LogPrintf("AddToWallet %s %s%s\n", wtxIn.GetHash().ToString(), (fInsertedNew ? "new" : ""), (fUpdated ? "update" : "")); |
|
|
|
// Write to disk |
|
if (fInsertedNew || fUpdated) |
|
if (!wtx.WriteToDisk()) |
|
return false; |
|
|
|
// Break debit/credit balance caches: |
|
wtx.MarkDirty(); |
|
|
|
// Notify UI of new or updated transaction |
|
NotifyTransactionChanged(this, hash, fInsertedNew ? CT_NEW : CT_UPDATED); |
|
|
|
// notify an external script when a wallet transaction comes in or is updated |
|
std::string strCmd = GetArg("-walletnotify", ""); |
|
|
|
if ( !strCmd.empty()) |
|
{ |
|
boost::replace_all(strCmd, "%s", wtxIn.GetHash().GetHex()); |
|
boost::thread t(runCommand, strCmd); // thread runs free |
|
} |
|
|
|
} |
|
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 uint256 &hash, const CTransaction& tx, const CBlock* pblock, bool fUpdate) |
|
{ |
|
{ |
|
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); |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
void CWallet::SyncTransaction(const uint256 &hash, const CTransaction& tx, const CBlock* pblock) |
|
{ |
|
AddToWalletIfInvolvingMe(hash, tx, pblock, true); |
|
|
|
if (mapWallet.count(hash) == 0) |
|
return; // Not one of ours |
|
|
|
// If a transaction changes 'conflicted' state, that changes the balance |
|
// available of the outputs it spends. So force those to be |
|
// recomputed, also: |
|
BOOST_FOREACH(const CTxIn& txin, tx.vin) |
|
{ |
|
if (mapWallet.count(txin.prevout.hash)) |
|
mapWallet[txin.prevout.hash].MarkDirty(); |
|
} |
|
} |
|
|
|
void CWallet::EraseFromWallet(const uint256 &hash) |
|
{ |
|
if (!fFileBacked) |
|
return; |
|
{ |
|
LOCK(cs_wallet); |
|
if (mapWallet.erase(hash)) |
|
CWalletDB(strWalletFile).EraseTx(hash); |
|
} |
|
return; |
|
} |
|
|
|
|
|
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_t 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_t CWalletTx::GetTxTime() const |
|
{ |
|
int64_t 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_t> >& listReceived, |
|
list<pair<CTxDestination, int64_t> >& listSent, int64_t& nFee, string& strSentAccount) const |
|
{ |
|
nFee = 0; |
|
listReceived.clear(); |
|
listSent.clear(); |
|
strSentAccount = strFromAccount; |
|
|
|
// Compute fee: |
|
int64_t nDebit = GetDebit(); |
|
if (nDebit > 0) // debit>0 means we signed/sent this transaction |
|
{ |
|
int64_t nValueOut = GetValueOut(); |
|
nFee = nDebit - nValueOut; |
|
} |
|
|
|
// Sent/received. |
|
BOOST_FOREACH(const CTxOut& txout, vout) |
|
{ |
|
bool fIsMine; |
|
// Only need to handle txouts if AT LEAST one of these is true: |
|
// 1) they debit from us (sent) |
|
// 2) the output is to us (received) |
|
if (nDebit > 0) |
|
{ |
|
// Don't report 'change' txouts |
|
if (pwallet->IsChange(txout)) |
|
continue; |
|
fIsMine = pwallet->IsMine(txout); |
|
} |
|
else if (!(fIsMine = pwallet->IsMine(txout))) |
|
continue; |
|
|
|
// In either case, we need to get the destination address |
|
CTxDestination address; |
|
if (!ExtractDestination(txout.scriptPubKey, address)) |
|
{ |
|
LogPrintf("CWalletTx::GetAmounts: Unknown transaction type found, txid %s\n", |
|
this->GetHash().ToString()); |
|
address = CNoDestination(); |
|
} |
|
|
|
// If we are debited by the transaction, add the output as a "sent" entry |
|
if (nDebit > 0) |
|
listSent.push_back(make_pair(address, txout.nValue)); |
|
|
|
// If we are receiving the output, add it as a "received" entry |
|
if (fIsMine) |
|
listReceived.push_back(make_pair(address, txout.nValue)); |
|
} |
|
|
|
} |
|
|
|
void CWalletTx::GetAccountAmounts(const string& strAccount, int64_t& nReceived, |
|
int64_t& nSent, int64_t& nFee) const |
|
{ |
|
nReceived = nSent = nFee = 0; |
|
|
|
int64_t allFee; |
|
string strSentAccount; |
|
list<pair<CTxDestination, int64_t> > listReceived; |
|
list<pair<CTxDestination, int64_t> > listSent; |
|
GetAmounts(listReceived, listSent, allFee, strSentAccount); |
|
|
|
if (strAccount == strSentAccount) |
|
{ |
|
BOOST_FOREACH(const PAIRTYPE(CTxDestination,int64_t)& s, listSent) |
|
nSent += s.second; |
|
nFee = allFee; |
|
} |
|
{ |
|
LOCK(pwallet->cs_wallet); |
|
BOOST_FOREACH(const PAIRTYPE(CTxDestination,int64_t)& r, listReceived) |
|
{ |
|
if (pwallet->mapAddressBook.count(r.first)) |
|
{ |
|
map<CTxDestination, CAddressBookData>::const_iterator mi = pwallet->mapAddressBook.find(r.first); |
|
if (mi != pwallet->mapAddressBook.end() && (*mi).second.name == strAccount) |
|
nReceived += r.second; |
|
} |
|
else if (strAccount.empty()) |
|
{ |
|
nReceived += r.second; |
|
} |
|
} |
|
} |
|
} |
|
|
|
|
|
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) |
|
{ |
|
// no need to read and scan block, if block was created before |
|
// our wallet birthday (as adjusted for block time variability) |
|
if (nTimeFirstKey && (pindex->nTime < (nTimeFirstKey - 7200))) { |
|
pindex = chainActive.Next(pindex); |
|
continue; |
|
} |
|
|
|
CBlock block; |
|
ReadBlockFromDisk(block, pindex); |
|
BOOST_FOREACH(CTransaction& tx, block.vtx) |
|
{ |
|
if (AddToWalletIfInvolvingMe(tx.GetHash(), tx, &block, fUpdate)) |
|
ret++; |
|
} |
|
pindex = chainActive.Next(pindex); |
|
} |
|
} |
|
return ret; |
|
} |
|
|
|
void CWallet::ReacceptWalletTransactions() |
|
{ |
|
LOCK(cs_wallet); |
|
BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet) |
|
{ |
|
const uint256& wtxid = item.first; |
|
CWalletTx& wtx = item.second; |
|
assert(wtx.GetHash() == wtxid); |
|
|
|
int nDepth = wtx.GetDepthInMainChain(); |
|
|
|
if (!wtx.IsCoinBase() && nDepth < 0) |
|
{ |
|
// Try to add to memory pool |
|
LOCK(mempool.cs); |
|
wtx.AcceptToMemoryPool(false); |
|
} |
|
} |
|
} |
|
|
|
void CWalletTx::RelayWalletTransaction() |
|
{ |
|
if (!IsCoinBase()) |
|
{ |
|
if (GetDepthInMainChain() == 0) { |
|
uint256 hash = GetHash(); |
|
LogPrintf("Relaying wtx %s\n", hash.ToString()); |
|
RelayTransaction((CTransaction)*this, hash); |
|
} |
|
} |
|
} |
|
|
|
set<uint256> CWalletTx::GetConflicts() const |
|
{ |
|
set<uint256> result; |
|
if (pwallet != NULL) |
|
{ |
|
uint256 myHash = GetHash(); |
|
result = pwallet->GetConflicts(myHash); |
|
result.erase(myHash); |
|
} |
|
return result; |
|
} |
|
|
|
void CWallet::ResendWalletTransactions() |
|
{ |
|
// Do this infrequently and randomly to avoid giving away |
|
// that these are our transactions. |
|
if (GetTime() < nNextResend) |
|
return; |
|
bool fFirst = (nNextResend == 0); |
|
nNextResend = GetTime() + GetRand(30 * 60); |
|
if (fFirst) |
|
return; |
|
|
|
// Only do it if there's been a new block since last time |
|
if (nTimeBestReceived < nLastResend) |
|
return; |
|
nLastResend = GetTime(); |
|
|
|
// Rebroadcast any of our txes that aren't in a block yet |
|
LogPrintf("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_t)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_t CWallet::GetBalance() const |
|
{ |
|
int64_t 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->IsTrusted()) |
|
nTotal += pcoin->GetAvailableCredit(); |
|
} |
|
} |
|
|
|
return nTotal; |
|
} |
|
|
|
int64_t CWallet::GetUnconfirmedBalance() const |
|
{ |
|
int64_t nTotal = 0; |
|
{ |
|
LOCK(cs_wallet); |
|
for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it) |
|
{ |
|
const CWalletTx* pcoin = &(*it).second; |
|
if (!IsFinalTx(*pcoin) || (!pcoin->IsTrusted() && pcoin->GetDepthInMainChain() == 0)) |
|
nTotal += pcoin->GetAvailableCredit(); |
|
} |
|
} |
|
return nTotal; |
|
} |
|
|
|
int64_t CWallet::GetImmatureBalance() const |
|
{ |
|
int64_t 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 CCoinControl *coinControl) const |
|
{ |
|
vCoins.clear(); |
|
|
|
{ |
|
LOCK(cs_wallet); |
|
for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it) |
|
{ |
|
const uint256& wtxid = it->first; |
|
const CWalletTx* pcoin = &(*it).second; |
|
|
|
if (!IsFinalTx(*pcoin)) |
|
continue; |
|
|
|
if (fOnlyConfirmed && !pcoin->IsTrusted()) |
|
continue; |
|
|
|
if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0) |
|
continue; |
|
|
|
int nDepth = pcoin->GetDepthInMainChain(); |
|
if (nDepth < 0) |
|
continue; |
|
|
|
for (unsigned int i = 0; i < pcoin->vout.size(); i++) { |
|
if (!(IsSpent(wtxid, i)) && IsMine(pcoin->vout[i]) && |
|
!IsLockedCoin((*it).first, i) && pcoin->vout[i].nValue > 0 && |
|
(!coinControl || !coinControl->HasSelected() || coinControl->IsSelected((*it).first, i))) |
|
vCoins.push_back(COutput(pcoin, i, nDepth)); |
|
} |
|
} |
|
} |
|
} |
|
|
|
static void ApproximateBestSubset(vector<pair<int64_t, pair<const CWalletTx*,unsigned int> > >vValue, int64_t nTotalLower, int64_t nTargetValue, |
|
vector<char>& vfBest, int64_t& nBest, int iterations = 1000) |
|
{ |
|
vector<char> vfIncluded; |
|
|
|
vfBest.assign(vValue.size(), true); |
|
nBest = nTotalLower; |
|
|
|
seed_insecure_rand(); |
|
|
|
for (int nRep = 0; nRep < iterations && nBest != nTargetValue; nRep++) |
|
{ |
|
vfIncluded.assign(vValue.size(), false); |
|
int64_t nTotal = 0; |
|
bool fReachedTarget = false; |
|
for (int nPass = 0; nPass < 2 && !fReachedTarget; nPass++) |
|
{ |
|
for (unsigned int i = 0; i < vValue.size(); i++) |
|
{ |
|
//The solver here uses a randomized algorithm, |
|
//the randomness serves no real security purpose but is just |
|
//needed to prevent degenerate behavior and it is important |
|
//that the rng fast. We do not use a constant random sequence, |
|
//because there may be some privacy improvement by making |
|
//the selection random. |
|
if (nPass == 0 ? insecure_rand()&1 : !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_t nTargetValue, int nConfMine, int nConfTheirs, vector<COutput> vCoins, |
|
set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64_t& nValueRet) const |
|
{ |
|
setCoinsRet.clear(); |
|
nValueRet = 0; |
|
|
|
// List of values less than target |
|
pair<int64_t, pair<const CWalletTx*,unsigned int> > coinLowestLarger; |
|
coinLowestLarger.first = std::numeric_limits<int64_t>::max(); |
|
coinLowestLarger.second.first = NULL; |
|
vector<pair<int64_t, pair<const CWalletTx*,unsigned int> > > vValue; |
|
int64_t 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_t n = pcoin->vout[i].nValue; |
|
|
|
pair<int64_t,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_t 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; |
|
} |
|
|
|
LogPrint("selectcoins", "SelectCoins() best subset: "); |
|
for (unsigned int i = 0; i < vValue.size(); i++) |
|
if (vfBest[i]) |
|
LogPrint("selectcoins", "%s ", FormatMoney(vValue[i].first)); |
|
LogPrint("selectcoins", "total %s\n", FormatMoney(nBest)); |
|
} |
|
|
|
return true; |
|
} |
|
|
|
bool CWallet::SelectCoins(int64_t nTargetValue, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64_t& nValueRet, const CCoinControl* coinControl) const |
|
{ |
|
vector<COutput> vCoins; |
|
AvailableCoins(vCoins, true, coinControl); |
|
|
|
// coin control -> return all selected outputs (we want all selected to go into the transaction for sure) |
|
if (coinControl && coinControl->HasSelected()) |
|
{ |
|
BOOST_FOREACH(const COutput& out, vCoins) |
|
{ |
|
nValueRet += out.tx->vout[out.i].nValue; |
|
setCoinsRet.insert(make_pair(out.tx, out.i)); |
|
} |
|
return (nValueRet >= nTargetValue); |
|
} |
|
|
|
return (SelectCoinsMinConf(nTargetValue, 1, 6, vCoins, setCoinsRet, nValueRet) || |
|
SelectCoinsMinConf(nTargetValue, 1, 1, vCoins, setCoinsRet, nValueRet) || |
|
(bSpendZeroConfChange && SelectCoinsMinConf(nTargetValue, 0, 1, vCoins, setCoinsRet, nValueRet))); |
|
} |
|
|
|
|
|
|
|
|
|
bool CWallet::CreateTransaction(const vector<pair<CScript, int64_t> >& vecSend, |
|
CWalletTx& wtxNew, CReserveKey& reservekey, int64_t& nFeeRet, std::string& strFailReason, const CCoinControl* coinControl) |
|
{ |
|
int64_t nValue = 0; |
|
BOOST_FOREACH (const PAIRTYPE(CScript, int64_t)& s, vecSend) |
|
{ |
|
if (nValue < 0) |
|
{ |
|
strFailReason = _("Transaction amounts must be positive"); |
|
return false; |
|
} |
|
nValue += s.second; |
|
} |
|
if (vecSend.empty() || nValue < 0) |
|
{ |
|
strFailReason = _("Transaction amounts must be positive"); |
|
return false; |
|
} |
|
|
|
wtxNew.BindWallet(this); |
|
|
|
{ |
|
LOCK2(cs_main, cs_wallet); |
|
{ |
|
nFeeRet = nTransactionFee; |
|
while (true) |
|
{ |
|
wtxNew.vin.clear(); |
|
wtxNew.vout.clear(); |
|
wtxNew.fFromMe = true; |
|
|
|
int64_t nTotalValue = nValue + nFeeRet; |
|
double dPriority = 0; |
|
// vouts to the payees |
|
BOOST_FOREACH (const PAIRTYPE(CScript, int64_t)& s, vecSend) |
|
{ |
|
CTxOut txout(s.second, s.first); |
|
if (txout.IsDust(CTransaction::nMinRelayTxFee)) |
|
{ |
|
strFailReason = _("Transaction amount too small"); |
|
return false; |
|
} |
|
wtxNew.vout.push_back(txout); |
|
} |
|
|
|
// Choose coins to use |
|
set<pair<const CWalletTx*,unsigned int> > setCoins; |
|
int64_t nValueIn = 0; |
|
if (!SelectCoins(nTotalValue, setCoins, nValueIn, coinControl)) |
|
{ |
|
strFailReason = _("Insufficient funds"); |
|
return false; |
|
} |
|
BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins) |
|
{ |
|
int64_t nCredit = pcoin.first->vout[pcoin.second].nValue; |
|
//The priority after the next block (depth+1) is used instead of the current, |
|
//reflecting an assumption the user would accept a bit more delay for |
|
//a chance at a free transaction. |
|
dPriority += (double)nCredit * (pcoin.first->GetDepthInMainChain()+1); |
|
} |
|
|
|
int64_t nChange = nValueIn - nValue - nFeeRet; |
|
// The following if statement should be removed once enough miners |
|
// have upgraded to the 0.9 GetMinFee() rules. Until then, this avoids |
|
// creating free transactions that have change outputs less than |
|
// CENT bitcoins. |
|
if (nFeeRet < CTransaction::nMinTxFee && nChange > 0 && nChange < CENT) |
|
{ |
|
int64_t nMoveToFee = min(nChange, CTransaction::nMinTxFee - nFeeRet); |
|
nChange -= nMoveToFee; |
|
nFeeRet += nMoveToFee; |
|
} |
|
|
|
if (nChange > 0) |
|
{ |
|
// Fill a vout to ourself |
|
// TODO: pass in scriptChange instead of reservekey so |
|
// change transaction isn't always pay-to-bitcoin-address |
|
CScript scriptChange; |
|
|
|
// coin control: send change to custom address |
|
if (coinControl && !boost::get<CNoDestination>(&coinControl->destChange)) |
|
scriptChange.SetDestination(coinControl->destChange); |
|
|
|
// no coin control: send change to newly generated address |
|
else |
|
{ |
|
// 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; |
|
bool ret; |
|
ret = reservekey.GetReservedKey(vchPubKey); |
|
assert(ret); // should never fail, as we just unlocked |
|
|
|
scriptChange.SetDestination(vchPubKey.GetID()); |
|
} |
|
|
|
CTxOut newTxOut(nChange, scriptChange); |
|
|
|
// Never create dust outputs; if we would, just |
|
// add the dust to the fee. |
|
if (newTxOut.IsDust(CTransaction::nMinRelayTxFee)) |
|
{ |
|
nFeeRet += nChange; |
|
reservekey.ReturnKey(); |
|
} |
|
else |
|
{ |
|
// Insert change txn at random position: |
|
vector<CTxOut>::iterator position = wtxNew.vout.begin()+GetRandInt(wtxNew.vout.size()+1); |
|
wtxNew.vout.insert(position, newTxOut); |
|
} |
|
} |
|
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++)) |
|
{ |
|
strFailReason = _("Signing transaction failed"); |
|
return false; |
|
} |
|
|
|
// Limit size |
|
unsigned int nBytes = ::GetSerializeSize(*(CTransaction*)&wtxNew, SER_NETWORK, PROTOCOL_VERSION); |
|
if (nBytes >= MAX_STANDARD_TX_SIZE) |
|
{ |
|
strFailReason = _("Transaction too large"); |
|
return false; |
|
} |
|
dPriority = wtxNew.ComputePriority(dPriority, nBytes); |
|
|
|
// Check that enough fee is included |
|
int64_t nPayFee = nTransactionFee * (1 + (int64_t)nBytes / 1000); |
|
bool fAllowFree = AllowFree(dPriority); |
|
int64_t nMinFee = GetMinFee(wtxNew, nBytes, fAllowFree, GMF_SEND); |
|
if (nFeeRet < max(nPayFee, nMinFee)) |
|
{ |
|
nFeeRet = max(nPayFee, nMinFee); |
|
continue; |
|
} |
|
|
|
wtxNew.fTimeReceivedIsTxTime = true; |
|
|
|
break; |
|
} |
|
} |
|
} |
|
return true; |
|
} |
|
|
|
bool CWallet::CreateTransaction(CScript scriptPubKey, int64_t nValue, |
|
CWalletTx& wtxNew, CReserveKey& reservekey, int64_t& nFeeRet, std::string& strFailReason, const CCoinControl* coinControl) |
|
{ |
|
vector< pair<CScript, int64_t> > vecSend; |
|
vecSend.push_back(make_pair(scriptPubKey, nValue)); |
|
return CreateTransaction(vecSend, wtxNew, reservekey, nFeeRet, strFailReason, coinControl); |
|
} |
|
|
|
// Call after CreateTransaction unless you want to abort |
|
bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey) |
|
{ |
|
{ |
|
LOCK2(cs_main, cs_wallet); |
|
LogPrintf("CommitTransaction:\n%s", wtxNew.ToString()); |
|
{ |
|
// 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); |
|
|
|
// Notify that old coins are spent |
|
set<CWalletTx*> setCoins; |
|
BOOST_FOREACH(const CTxIn& txin, wtxNew.vin) |
|
{ |
|
CWalletTx &coin = mapWallet[txin.prevout.hash]; |
|
coin.BindWallet(this); |
|
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(false)) |
|
{ |
|
// This must not fail. The transaction has already been signed and recorded. |
|
LogPrintf("CommitTransaction() : Error: Transaction not valid"); |
|
return false; |
|
} |
|
wtxNew.RelayWalletTransaction(); |
|
} |
|
return true; |
|
} |
|
|
|
|
|
|
|
|
|
string CWallet::SendMoney(CScript scriptPubKey, int64_t nValue, CWalletTx& wtxNew) |
|
{ |
|
CReserveKey reservekey(this); |
|
int64_t nFeeRequired; |
|
|
|
if (IsLocked()) |
|
{ |
|
string strError = _("Error: Wallet locked, unable to create transaction!"); |
|
LogPrintf("SendMoney() : %s", strError); |
|
return strError; |
|
} |
|
string strError; |
|
if (!CreateTransaction(scriptPubKey, nValue, wtxNew, reservekey, nFeeRequired, 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)); |
|
LogPrintf("SendMoney() : %s\n", strError); |
|
return strError; |
|
} |
|
|
|
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_t nValue, CWalletTx& wtxNew) |
|
{ |
|
// 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); |
|
} |
|
|
|
|
|
|
|
|
|
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")) |
|
{ |
|
LOCK(cs_wallet); |
|
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(); |
|
|
|
return DB_LOAD_OK; |
|
} |
|
|
|
|
|
DBErrors CWallet::ZapWalletTx() |
|
{ |
|
if (!fFileBacked) |
|
return DB_LOAD_OK; |
|
DBErrors nZapWalletTxRet = CWalletDB(strWalletFile,"cr+").ZapWalletTx(this); |
|
if (nZapWalletTxRet == DB_NEED_REWRITE) |
|
{ |
|
if (CDB::Rewrite(strWalletFile, "\x04pool")) |
|
{ |
|
LOCK(cs_wallet); |
|
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 (nZapWalletTxRet != DB_LOAD_OK) |
|
return nZapWalletTxRet; |
|
|
|
return DB_LOAD_OK; |
|
} |
|
|
|
|
|
bool CWallet::SetAddressBook(const CTxDestination& address, const string& strName, const string& strPurpose) |
|
{ |
|
bool fUpdated = false; |
|
{ |
|
LOCK(cs_wallet); // mapAddressBook |
|
std::map<CTxDestination, CAddressBookData>::iterator mi = mapAddressBook.find(address); |
|
fUpdated = mi != mapAddressBook.end(); |
|
mapAddressBook[address].name = strName; |
|
if (!strPurpose.empty()) /* update purpose only if requested */ |
|
mapAddressBook[address].purpose = strPurpose; |
|
} |
|
NotifyAddressBookChanged(this, address, strName, ::IsMine(*this, address), |
|
strPurpose, (fUpdated ? CT_UPDATED : CT_NEW) ); |
|
if (!fFileBacked) |
|
return false; |
|
if (!strPurpose.empty() && !CWalletDB(strWalletFile).WritePurpose(CBitcoinAddress(address).ToString(), strPurpose)) |
|
return false; |
|
return CWalletDB(strWalletFile).WriteName(CBitcoinAddress(address).ToString(), strName); |
|
} |
|
|
|
bool CWallet::DelAddressBook(const CTxDestination& address) |
|
{ |
|
{ |
|
LOCK(cs_wallet); // mapAddressBook |
|
|
|
if(fFileBacked) |
|
{ |
|
// Delete destdata tuples associated with address |
|
std::string strAddress = CBitcoinAddress(address).ToString(); |
|
BOOST_FOREACH(const PAIRTYPE(string, string) &item, mapAddressBook[address].destdata) |
|
{ |
|
CWalletDB(strWalletFile).EraseDestData(strAddress, item.first); |
|
} |
|
} |
|
mapAddressBook.erase(address); |
|
} |
|
|
|
NotifyAddressBookChanged(this, address, "", ::IsMine(*this, address), "", CT_DELETED); |
|
|
|
if (!fFileBacked) |
|
return false; |
|
CWalletDB(strWalletFile).ErasePurpose(CBitcoinAddress(address).ToString()); |
|
return CWalletDB(strWalletFile).EraseName(CBitcoinAddress(address).ToString()); |
|
} |
|
|
|
bool CWallet::SetDefaultKey(const CPubKey &vchPubKey) |
|
{ |
|
if (fFileBacked) |
|
{ |
|
if (!CWalletDB(strWalletFile).WriteDefaultKey(vchPubKey)) |
|
return false; |
|
} |
|
vchDefaultKey = vchPubKey; |
|
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_t nIndex, setKeyPool) |
|
walletdb.ErasePool(nIndex); |
|
setKeyPool.clear(); |
|
|
|
if (IsLocked()) |
|
return false; |
|
|
|
int64_t nKeys = max(GetArg("-keypool", 100), (int64_t)0); |
|
for (int i = 0; i < nKeys; i++) |
|
{ |
|
int64_t nIndex = i+1; |
|
walletdb.WritePool(nIndex, CKeyPool(GenerateNewKey())); |
|
setKeyPool.insert(nIndex); |
|
} |
|
LogPrintf("CWallet::NewKeyPool wrote %d new keys\n", nKeys); |
|
} |
|
return true; |
|
} |
|
|
|
bool CWallet::TopUpKeyPool(unsigned int kpSize) |
|
{ |
|
{ |
|
LOCK(cs_wallet); |
|
|
|
if (IsLocked()) |
|
return false; |
|
|
|
CWalletDB walletdb(strWalletFile); |
|
|
|
// Top up key pool |
|
unsigned int nTargetSize; |
|
if (kpSize > 0) |
|
nTargetSize = kpSize; |
|
else |
|
nTargetSize = max(GetArg("-keypool", 100), (int64_t) 0); |
|
|
|
while (setKeyPool.size() < (nTargetSize + 1)) |
|
{ |
|
int64_t 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); |
|
LogPrintf("keypool added key %d, size=%"PRIszu"\n", nEnd, setKeyPool.size()); |
|
} |
|
} |
|
return true; |
|
} |
|
|
|
void CWallet::ReserveKeyFromKeyPool(int64_t& 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()); |
|
LogPrintf("keypool reserve %d\n", nIndex); |
|
} |
|
} |
|
|
|
int64_t CWallet::AddReserveKey(const CKeyPool& keypool) |
|
{ |
|
{ |
|
LOCK2(cs_main, cs_wallet); |
|
CWalletDB walletdb(strWalletFile); |
|
|
|
int64_t 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_t nIndex) |
|
{ |
|
// Remove from key pool |
|
if (fFileBacked) |
|
{ |
|
CWalletDB walletdb(strWalletFile); |
|
walletdb.ErasePool(nIndex); |
|
} |
|
LogPrintf("keypool keep %d\n", nIndex); |
|
} |
|
|
|
void CWallet::ReturnKey(int64_t nIndex) |
|
{ |
|
// Return to key pool |
|
{ |
|
LOCK(cs_wallet); |
|
setKeyPool.insert(nIndex); |
|
} |
|
LogPrintf("keypool return %d\n", nIndex); |
|
} |
|
|
|
bool CWallet::GetKeyFromPool(CPubKey& result) |
|
{ |
|
int64_t nIndex = 0; |
|
CKeyPool keypool; |
|
{ |
|
LOCK(cs_wallet); |
|
ReserveKeyFromKeyPool(nIndex, keypool); |
|
if (nIndex == -1) |
|
{ |
|
if (IsLocked()) return false; |
|
result = GenerateNewKey(); |
|
return true; |
|
} |
|
KeepKey(nIndex); |
|
result = keypool.vchPubKey; |
|
} |
|
return true; |
|
} |
|
|
|
int64_t CWallet::GetOldestKeyPoolTime() |
|
{ |
|
int64_t nIndex = 0; |
|
CKeyPool keypool; |
|
ReserveKeyFromKeyPool(nIndex, keypool); |
|
if (nIndex == -1) |
|
return GetTime(); |
|
ReturnKey(nIndex); |
|
return keypool.nTime; |
|
} |
|
|
|
std::map<CTxDestination, int64_t> CWallet::GetAddressBalances() |
|
{ |
|
map<CTxDestination, int64_t> balances; |
|
|
|
{ |
|
LOCK(cs_wallet); |
|
BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet) |
|
{ |
|
CWalletTx *pcoin = &walletEntry.second; |
|
|
|
if (!IsFinalTx(*pcoin) || !pcoin->IsTrusted()) |
|
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_t n = IsSpent(walletEntry.first, i) ? 0 : pcoin->vout[i].nValue; |
|
|
|
if (!balances.count(addr)) |
|
balances[addr] = 0; |
|
balances[addr] += n; |
|
} |
|
} |
|
} |
|
|
|
return balances; |
|
} |
|
|
|
set< set<CTxDestination> > CWallet::GetAddressGroupings() |
|
{ |
|
AssertLockHeld(cs_wallet); // mapWallet |
|
set< set<CTxDestination> > groupings; |
|
set<CTxDestination> grouping; |
|
|
|
BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet) |
|
{ |
|
CWalletTx *pcoin = &walletEntry.second; |
|
|
|
if (pcoin->vin.size() > 0) |
|
{ |
|
bool any_mine = false; |
|
// group all input addresses with each other |
|
BOOST_FOREACH(CTxIn txin, pcoin->vin) |
|
{ |
|
CTxDestination address; |
|
if(!IsMine(txin)) /* If this input isn't mine, ignore it */ |
|
continue; |
|
if(!ExtractDestination(mapWallet[txin.prevout.hash].vout[txin.prevout.n].scriptPubKey, address)) |
|
continue; |
|
grouping.insert(address); |
|
any_mine = true; |
|
} |
|
|
|
// group change with input addresses |
|
if (any_mine) |
|
{ |
|
BOOST_FOREACH(CTxOut txout, pcoin->vout) |
|
if (IsChange(txout)) |
|
{ |
|
CTxDestination txoutAddr; |
|
if(!ExtractDestination(txout.scriptPubKey, txoutAddr)) |
|
continue; |
|
grouping.insert(txoutAddr); |
|
} |
|
} |
|
if (grouping.size() > 0) |
|
{ |
|
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; |
|
} |
|
|
|
set<CTxDestination> CWallet::GetAccountAddresses(string strAccount) const |
|
{ |
|
AssertLockHeld(cs_wallet); // mapWallet |
|
set<CTxDestination> result; |
|
BOOST_FOREACH(const PAIRTYPE(CTxDestination, CAddressBookData)& item, mapAddressBook) |
|
{ |
|
const CTxDestination& address = item.first; |
|
const string& strName = item.second.name; |
|
if (strName == strAccount) |
|
result.insert(address); |
|
} |
|
return result; |
|
} |
|
|
|
bool CReserveKey::GetReservedKey(CPubKey& pubkey) |
|
{ |
|
if (nIndex == -1) |
|
{ |
|
CKeyPool keypool; |
|
pwallet->ReserveKeyFromKeyPool(nIndex, keypool); |
|
if (nIndex != -1) |
|
vchPubKey = keypool.vchPubKey; |
|
else { |
|
if (pwallet->vchDefaultKey.IsValid()) { |
|
LogPrintf("CReserveKey::GetReservedKey(): Warning: Using default key instead of a new key, top up your keypool!"); |
|
vchPubKey = pwallet->vchDefaultKey; |
|
} else |
|
return false; |
|
} |
|
} |
|
assert(vchPubKey.IsValid()); |
|
pubkey = vchPubKey; |
|
return true; |
|
} |
|
|
|
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) const |
|
{ |
|
setAddress.clear(); |
|
|
|
CWalletDB walletdb(strWalletFile); |
|
|
|
LOCK2(cs_main, cs_wallet); |
|
BOOST_FOREACH(const int64_t& 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); |
|
} |
|
} |
|
|
|
void CWallet::LockCoin(COutPoint& output) |
|
{ |
|
AssertLockHeld(cs_wallet); // setLockedCoins |
|
setLockedCoins.insert(output); |
|
} |
|
|
|
void CWallet::UnlockCoin(COutPoint& output) |
|
{ |
|
AssertLockHeld(cs_wallet); // setLockedCoins |
|
setLockedCoins.erase(output); |
|
} |
|
|
|
void CWallet::UnlockAllCoins() |
|
{ |
|
AssertLockHeld(cs_wallet); // setLockedCoins |
|
setLockedCoins.clear(); |
|
} |
|
|
|
bool CWallet::IsLockedCoin(uint256 hash, unsigned int n) const |
|
{ |
|
AssertLockHeld(cs_wallet); // setLockedCoins |
|
COutPoint outpt(hash, n); |
|
|
|
return (setLockedCoins.count(outpt) > 0); |
|
} |
|
|
|
void CWallet::ListLockedCoins(std::vector<COutPoint>& vOutpts) |
|
{ |
|
AssertLockHeld(cs_wallet); // setLockedCoins |
|
for (std::set<COutPoint>::iterator it = setLockedCoins.begin(); |
|
it != setLockedCoins.end(); it++) { |
|
COutPoint outpt = (*it); |
|
vOutpts.push_back(outpt); |
|
} |
|
} |
|
|
|
void CWallet::GetKeyBirthTimes(std::map<CKeyID, int64_t> &mapKeyBirth) const { |
|
AssertLockHeld(cs_wallet); // mapKeyMetadata |
|
mapKeyBirth.clear(); |
|
|
|
// get birth times for keys with metadata |
|
for (std::map<CKeyID, CKeyMetadata>::const_iterator it = mapKeyMetadata.begin(); it != mapKeyMetadata.end(); it++) |
|
if (it->second.nCreateTime) |
|
mapKeyBirth[it->first] = it->second.nCreateTime; |
|
|
|
// map in which we'll infer heights of other keys |
|
CBlockIndex *pindexMax = chainActive[std::max(0, chainActive.Height() - 144)]; // the tip can be reorganised; use a 144-block safety margin |
|
std::map<CKeyID, CBlockIndex*> mapKeyFirstBlock; |
|
std::set<CKeyID> setKeys; |
|
GetKeys(setKeys); |
|
BOOST_FOREACH(const CKeyID &keyid, setKeys) { |
|
if (mapKeyBirth.count(keyid) == 0) |
|
mapKeyFirstBlock[keyid] = pindexMax; |
|
} |
|
setKeys.clear(); |
|
|
|
// if there are no such keys, we're done |
|
if (mapKeyFirstBlock.empty()) |
|
return; |
|
|
|
// find first block that affects those keys, if there are any left |
|
std::vector<CKeyID> vAffected; |
|
for (std::map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); it++) { |
|
// iterate over all wallet transactions... |
|
const CWalletTx &wtx = (*it).second; |
|
std::map<uint256, CBlockIndex*>::const_iterator blit = mapBlockIndex.find(wtx.hashBlock); |
|
if (blit != mapBlockIndex.end() && chainActive.Contains(blit->second)) { |
|
// ... which are already in a block |
|
int nHeight = blit->second->nHeight; |
|
BOOST_FOREACH(const CTxOut &txout, wtx.vout) { |
|
// iterate over all their outputs |
|
::ExtractAffectedKeys(*this, txout.scriptPubKey, vAffected); |
|
BOOST_FOREACH(const CKeyID &keyid, vAffected) { |
|
// ... and all their affected keys |
|
std::map<CKeyID, CBlockIndex*>::iterator rit = mapKeyFirstBlock.find(keyid); |
|
if (rit != mapKeyFirstBlock.end() && nHeight < rit->second->nHeight) |
|
rit->second = blit->second; |
|
} |
|
vAffected.clear(); |
|
} |
|
} |
|
} |
|
|
|
// Extract block timestamps for those keys |
|
for (std::map<CKeyID, CBlockIndex*>::const_iterator it = mapKeyFirstBlock.begin(); it != mapKeyFirstBlock.end(); it++) |
|
mapKeyBirth[it->first] = it->second->nTime - 7200; // block times can be 2h off |
|
} |
|
|
|
bool CWallet::AddDestData(const CTxDestination &dest, const std::string &key, const std::string &value) |
|
{ |
|
if (boost::get<CNoDestination>(&dest)) |
|
return false; |
|
|
|
mapAddressBook[dest].destdata.insert(std::make_pair(key, value)); |
|
if (!fFileBacked) |
|
return true; |
|
return CWalletDB(strWalletFile).WriteDestData(CBitcoinAddress(dest).ToString(), key, value); |
|
} |
|
|
|
bool CWallet::EraseDestData(const CTxDestination &dest, const std::string &key) |
|
{ |
|
if (!mapAddressBook[dest].destdata.erase(key)) |
|
return false; |
|
if (!fFileBacked) |
|
return true; |
|
return CWalletDB(strWalletFile).EraseDestData(CBitcoinAddress(dest).ToString(), key); |
|
} |
|
|
|
bool CWallet::LoadDestData(const CTxDestination &dest, const std::string &key, const std::string &value) |
|
{ |
|
mapAddressBook[dest].destdata.insert(std::make_pair(key, value)); |
|
return true; |
|
} |
|
|
|
bool CWallet::GetDestData(const CTxDestination &dest, const std::string &key, std::string *value) const |
|
{ |
|
std::map<CTxDestination, CAddressBookData>::const_iterator i = mapAddressBook.find(dest); |
|
if(i != mapAddressBook.end()) |
|
{ |
|
CAddressBookData::StringMap::const_iterator j = i->second.destdata.find(key); |
|
if(j != i->second.destdata.end()) |
|
{ |
|
if(value) |
|
*value = j->second; |
|
return true; |
|
} |
|
} |
|
return false; |
|
}
|
|
|