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wallet.cpp
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wallet.cpp
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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "wallet.h"
#include "txdb-leveldb.h"
#include "base58.h"
#include "coincontrol.h"
#include "crypter.h"
#include "kernel.h"
#include "random.h"
#include "walletdb.h"
#include <openssl/bio.h>
#include <random>
#include <regex>
extern int64_t nReserveBalance;
//////////////////////////////////////////////////////////////////////////////
//
// mapWallet
//
struct CompareValueOnly
{
bool operator()(const std::pair<int64_t, std::pair<const CWalletTx*, unsigned int> >& t1,
const std::pair<int64_t, std::pair<const CWalletTx*, unsigned int> >& t2) const
{
return t1.first < t2.first;
}
};
const CWalletTx* CWallet::GetWalletTx(const uint256& hash) const
{
LOCK(cs_wallet);
std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(hash);
if (it == mapWallet.end())
return NULL;
return &(it->second);
}
CPubKey CWallet::GenerateNewKey()
{
bool fCompressed = CanSupportFeature(FEATURE_COMPRPUBKEY); // default to compressed public keys if we want 0.6.0 wallets
RandAddSeedPerfmon();
CKey key;
key.MakeNewKey(fCompressed);
// Compressed public keys were introduced in version 0.6.0
if (fCompressed)
SetMinVersion(FEATURE_COMPRPUBKEY);
CPubKey pubkey = key.GetPubKey();
// Create new metadata
int64_t nCreationTime = GetTime();
mapKeyMetadata[CBitcoinAddress(pubkey.GetID())] = CKeyMetadata(nCreationTime);
if (!nTimeFirstKey || nCreationTime < nTimeFirstKey)
nTimeFirstKey = nCreationTime;
if (!AddKey(key))
throw std::runtime_error("CWallet::GenerateNewKey() : AddKey failed");
return key.GetPubKey();
}
CMalleableKeyView CWallet::GenerateNewMalleableKey()
{
RandAddSeedPerfmon();
// Compressed public keys were introduced in version 0.6.0
SetMinVersion(FEATURE_MALLKEY);
CMalleableKey mKey;
mKey.MakeNewKeys();
const CMalleableKeyView &keyView(mKey);
// Create new metadata
int64_t nCreationTime = GetTime();
mapKeyMetadata[CBitcoinAddress(keyView.GetMalleablePubKey())] = CKeyMetadata(nCreationTime);
if (!nTimeFirstKey || nCreationTime < nTimeFirstKey)
nTimeFirstKey = nCreationTime;
if (!AddKey(mKey))
throw std::runtime_error("CWallet::GenerateNewMalleableKey() : AddKey failed");
return CMalleableKeyView(mKey);
}
bool CWallet::AddKey(const CKey& key)
{
CPubKey pubkey = key.GetPubKey();
if (!CCryptoKeyStore::AddKey(key))
return false;
if (!fFileBacked)
return true;
if (!IsCrypted())
return CWalletDB(strWalletFile).WriteKey(pubkey, key.GetPrivKey(), mapKeyMetadata[CBitcoinAddress(pubkey.GetID())]);
return true;
}
bool CWallet::AddKey(const CMalleableKey& mKey)
{
CMalleableKeyView keyView = CMalleableKeyView(mKey);
CSecret vchSecretH = mKey.GetSecretH();
if (!CCryptoKeyStore::AddMalleableKey(keyView, vchSecretH))
return false;
if (!fFileBacked)
return true;
if (!IsCrypted())
return CWalletDB(strWalletFile).WriteMalleableKey(keyView, vchSecretH, mapKeyMetadata[CBitcoinAddress(keyView.GetMalleablePubKey())]);
return true;
}
bool CWallet::AddCryptedMalleableKey(const CMalleableKeyView& keyView, const std::vector<unsigned char> &vchCryptedSecretH)
{
if (!CCryptoKeyStore::AddCryptedMalleableKey(keyView, vchCryptedSecretH))
return false;
if (!fFileBacked)
return true;
{
LOCK(cs_wallet);
CBitcoinAddress addr(keyView.GetMalleablePubKey());
if (pwalletdbEncryption)
return pwalletdbEncryption->WriteCryptedMalleableKey(keyView, vchCryptedSecretH, mapKeyMetadata[addr]);
else
return CWalletDB(strWalletFile).WriteCryptedMalleableKey(keyView, vchCryptedSecretH, mapKeyMetadata[addr]);
}
return true;
}
bool CWallet::LoadCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret) { SetMinVersion(FEATURE_WALLETCRYPT); return CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret); }
bool CWallet::AddCryptedKey(const CPubKey &vchPubKey, const std::vector<unsigned char> &vchCryptedSecret)
{
if (!CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret))
return false;
// check if we need to remove from watch-only
CScript script;
script.SetDestination(vchPubKey.GetID());
if (HaveWatchOnly(script))
RemoveWatchOnly(script);
if (!fFileBacked)
return true;
{
LOCK(cs_wallet);
CBitcoinAddress addr(vchPubKey.GetID());
if (pwalletdbEncryption)
return pwalletdbEncryption->WriteCryptedKey(vchPubKey, vchCryptedSecret, mapKeyMetadata[addr]);
else
return CWalletDB(strWalletFile).WriteCryptedKey(vchPubKey, vchCryptedSecret, mapKeyMetadata[addr]);
}
return false;
}
bool CWallet::LoadKeyMetadata(const CPubKey &pubkey, const CKeyMetadata &meta)
{
if (meta.nCreateTime && (!nTimeFirstKey || meta.nCreateTime < nTimeFirstKey))
nTimeFirstKey = meta.nCreateTime;
mapKeyMetadata[CBitcoinAddress(pubkey.GetID())] = meta;
return true;
}
bool CWallet::LoadKeyMetadata(const CMalleableKeyView &keyView, const CKeyMetadata &metadata)
{
if (metadata.nCreateTime && (!nTimeFirstKey || metadata.nCreateTime < nTimeFirstKey))
nTimeFirstKey = metadata.nCreateTime;
mapKeyMetadata[CBitcoinAddress(keyView.GetMalleablePubKey())] = metadata;
return true;
}
bool CWallet::LoadKey(const CMalleableKeyView &keyView, const CSecret &vchSecretH) { return CCryptoKeyStore::AddMalleableKey(keyView, vchSecretH); }
bool CWallet::LoadCryptedKey(const CMalleableKeyView &keyView, const std::vector<unsigned char> &vchCryptedSecretH) { return CCryptoKeyStore::AddCryptedMalleableKey(keyView, vchCryptedSecretH); }
bool CWallet::LoadMinVersion(int nVersion) { nWalletVersion = nVersion; nWalletMaxVersion = std::max(nWalletMaxVersion, nVersion); return true; }
bool CWallet::AddCScript(const CScript& redeemScript)
{
if (!CCryptoKeyStore::AddCScript(redeemScript))
return false;
if (!fFileBacked)
return true;
return CWalletDB(strWalletFile).WriteCScript(Hash160(redeemScript), redeemScript);
}
bool CWallet::LoadCScript(const CScript& redeemScript)
{
/* A sanity check was added in commit 5ed0a2b to avoid adding redeemScripts
* that never can be redeemed. However, old wallets may still contain
* these. Do not add them to the wallet and warn. */
if (redeemScript.size() > MAX_SCRIPT_ELEMENT_SIZE)
{
std::string strAddr = CBitcoinAddress(redeemScript.GetID()).ToString();
printf("LoadCScript() : Warning: This wallet contains a redeemScript of size %" PRIszu " which exceeds maximum size %i thus can never be redeemed. Do not use address %s.\n",
redeemScript.size(), MAX_SCRIPT_ELEMENT_SIZE, strAddr.c_str());
return true;
}
return CCryptoKeyStore::AddCScript(redeemScript);
}
bool CWallet::AddWatchOnly(const CScript &dest)
{
if (!CCryptoKeyStore::AddWatchOnly(dest))
return false;
nTimeFirstKey = 1; // No birthday information for watch-only keys.
NotifyWatchonlyChanged(true);
if (!fFileBacked)
return true;
return CWalletDB(strWalletFile).WriteWatchOnly(dest);
}
bool CWallet::RemoveWatchOnly(const CScript &dest)
{
LOCK(cs_wallet);
if (!CCryptoKeyStore::RemoveWatchOnly(dest))
return false;
if (!HaveWatchOnly())
NotifyWatchonlyChanged(false);
if (fFileBacked)
if (!CWalletDB(strWalletFile).EraseWatchOnly(dest))
return false;
return true;
}
bool CWallet::LoadWatchOnly(const CScript &dest)
{
return CCryptoKeyStore::AddWatchOnly(dest);
}
// ppcoin: optional setting to unlock wallet for block minting only;
// serves to disable the trivial sendmoney when OS account compromised
bool fWalletUnlockMintOnly = false;
bool CWallet::Unlock(const SecureString& strWalletPassphrase)
{
if (!IsLocked())
return false;
CCrypter crypter;
CKeyingMaterial vMasterKey;
{
LOCK(cs_wallet);
for (const MasterKeyMap::value_type& pMasterKey : mapMasterKeys)
{
if(!crypter.SetKeyFromPassphrase(strWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
return false;
if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
return false;
if (CCryptoKeyStore::Unlock(vMasterKey))
return true;
}
}
return false;
}
bool CWallet::ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase)
{
bool fWasLocked = IsLocked();
{
LOCK(cs_wallet);
Lock();
CCrypter crypter;
CKeyingMaterial vMasterKey;
for (MasterKeyMap::value_type& pMasterKey : mapMasterKeys)
{
if(!crypter.SetKeyFromPassphrase(strOldWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
return false;
if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
return false;
if (CCryptoKeyStore::Unlock(vMasterKey))
{
int64_t nStartTime = GetTimeMillis();
crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
double nFirstMultiplier = 1e2 / (GetTimeMillis() - nStartTime);
pMasterKey.second.nDeriveIterations = (uint32_t)(pMasterKey.second.nDeriveIterations *nFirstMultiplier);
nStartTime = GetTimeMillis();
crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod);
double nSecondMultiplier = 1e2 / (GetTimeMillis() - nStartTime);
pMasterKey.second.nDeriveIterations = (uint32_t)((pMasterKey.second.nDeriveIterations + pMasterKey.second.nDeriveIterations * nSecondMultiplier) / 2);
if (pMasterKey.second.nDeriveIterations < 25000)
pMasterKey.second.nDeriveIterations = 25000;
printf("Wallet passphrase changed to an nDeriveIterations of %i\n", pMasterKey.second.nDeriveIterations);
if (!crypter.SetKeyFromPassphrase(strNewWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
return false;
if (!crypter.Encrypt(vMasterKey, pMasterKey.second.vchCryptedKey))
return false;
CWalletDB(strWalletFile).WriteMasterKey(pMasterKey.first, pMasterKey.second);
if (fWasLocked)
Lock();
return true;
}
}
}
return false;
}
void CWallet::SetBestChain(const CBlockLocator& loc)
{
CWalletDB walletdb(strWalletFile);
walletdb.WriteBestBlock(loc);
}
// This class implements an addrIncoming entry that causes pre-0.4
// clients to crash on startup if reading a private-key-encrypted wallet.
class CCorruptAddress
{
public:
IMPLEMENT_SERIALIZE
(
if (nType & SER_DISK)
READWRITE(nVersion);
)
};
bool CWallet::SetMinVersion(enum WalletFeature nVersion, CWalletDB* pwalletdbIn, bool fExplicit)
{
if (nWalletVersion >= nVersion)
return true;
// when doing an explicit upgrade, if we pass the max version permitted, upgrade all the way
if (fExplicit && nVersion > nWalletMaxVersion)
nVersion = FEATURE_LATEST;
nWalletVersion = nVersion;
if (nVersion > nWalletMaxVersion)
nWalletMaxVersion = nVersion;
if (fFileBacked)
{
CWalletDB* pwalletdb = pwalletdbIn ? pwalletdbIn : new CWalletDB(strWalletFile);
if (nWalletVersion > 40000)
pwalletdb->WriteMinVersion(nWalletVersion);
if (!pwalletdbIn)
delete pwalletdb;
}
return true;
}
bool CWallet::SetMaxVersion(int nVersion)
{
// cannot downgrade below current version
if (nWalletVersion > nVersion)
return false;
nWalletMaxVersion = nVersion;
return true;
}
bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase)
{
if (IsCrypted())
return false;
CKeyingMaterial vMasterKey;
RandAddSeedPerfmon();
vMasterKey.resize(WALLET_CRYPTO_KEY_SIZE);
GetRandBytes(&vMasterKey[0], WALLET_CRYPTO_KEY_SIZE);
CMasterKey kMasterKey;
RandAddSeedPerfmon();
kMasterKey.vchSalt.resize(WALLET_CRYPTO_SALT_SIZE);
GetRandBytes(&kMasterKey.vchSalt[0], WALLET_CRYPTO_SALT_SIZE);
CCrypter crypter;
int64_t nStartTime = GetTimeMillis();
crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, 25000, kMasterKey.nDerivationMethod);
int64_t nDivider = GetTimeMillis() - nStartTime;
kMasterKey.nDeriveIterations = (uint32_t)(25e5 / (double)(nDivider));
nStartTime = GetTimeMillis();
crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod);
double nMultiplier = 1e2 / (GetTimeMillis() - nStartTime);
kMasterKey.nDeriveIterations = (uint32_t)((kMasterKey.nDeriveIterations + kMasterKey.nDeriveIterations * nMultiplier) / 2);
if (kMasterKey.nDeriveIterations < 25000)
kMasterKey.nDeriveIterations = 25000;
printf("Encrypting Wallet with an nDeriveIterations of %i\n", kMasterKey.nDeriveIterations);
if (!crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod))
return false;
if (!crypter.Encrypt(vMasterKey, kMasterKey.vchCryptedKey))
return false;
{
LOCK(cs_wallet);
mapMasterKeys[++nMasterKeyMaxID] = kMasterKey;
if (fFileBacked)
{
pwalletdbEncryption = new CWalletDB(strWalletFile);
if (!pwalletdbEncryption->TxnBegin())
return false;
pwalletdbEncryption->WriteMasterKey(nMasterKeyMaxID, kMasterKey);
}
if (!EncryptKeys(vMasterKey))
{
if (fFileBacked)
pwalletdbEncryption->TxnAbort();
exit(1); //We now probably have half of our keys encrypted in memory, and half not...die and let the user reload their unencrypted wallet.
}
// Encryption was introduced in version 0.4.0
SetMinVersion(FEATURE_WALLETCRYPT, pwalletdbEncryption, true);
if (fFileBacked)
{
if (!pwalletdbEncryption->TxnCommit())
exit(1); //We now have keys encrypted in memory, but no on disk...die to avoid confusion and let the user reload their unencrypted wallet.
delete pwalletdbEncryption;
pwalletdbEncryption = NULL;
}
Lock();
Unlock(strWalletPassphrase);
NewKeyPool();
Lock();
// Need to completely rewrite the wallet file; if we don't, bdb might keep
// bits of the unencrypted private key in slack space in the database file.
CDB::Rewrite(strWalletFile);
}
NotifyStatusChanged(this);
return true;
}
bool CWallet::DecryptWallet(const SecureString& strWalletPassphrase)
{
if (!IsCrypted())
return false;
CCrypter crypter;
CKeyingMaterial vMasterKey;
{
LOCK(cs_wallet);
for (const MasterKeyMap::value_type& pMasterKey : mapMasterKeys)
{
if(!crypter.SetKeyFromPassphrase(strWalletPassphrase, pMasterKey.second.vchSalt, pMasterKey.second.nDeriveIterations, pMasterKey.second.nDerivationMethod))
return false;
if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
return false;
if (!CCryptoKeyStore::Unlock(vMasterKey))
return false;
}
if (fFileBacked)
{
pwalletdbDecryption = new CWalletDB(strWalletFile);
if (!pwalletdbDecryption->TxnBegin())
return false;
}
if (!DecryptKeys(vMasterKey))
{
if (fFileBacked)
pwalletdbDecryption->TxnAbort();
exit(1); //We now probably have half of our keys decrypted in memory, and half not...die and let the user reload their encrypted wallet.
}
if (fFileBacked)
{
// Overwrite crypted keys
KeyMap::const_iterator mi = mapKeys.begin();
while (mi != mapKeys.end())
{
CKey key;
key.SetSecret((*mi).second.first, (*mi).second.second);
pwalletdbDecryption->EraseCryptedKey(key.GetPubKey());
pwalletdbDecryption->WriteKey(key.GetPubKey(), key.GetPrivKey(), mapKeyMetadata[CBitcoinAddress(mi->first)]);
mi++;
}
MalleableKeyMap::const_iterator mi2 = mapMalleableKeys.begin();
while (mi2 != mapMalleableKeys.end())
{
const CSecret &vchSecretH = mi2->second;
const CMalleableKeyView &keyView = mi2->first;
pwalletdbDecryption->EraseCryptedMalleableKey(keyView);
pwalletdbDecryption->WriteMalleableKey(keyView, vchSecretH, mapKeyMetadata[CBitcoinAddress(keyView.GetMalleablePubKey())]);
mi2++;
}
// Erase master keys
MasterKeyMap::const_iterator mk = mapMasterKeys.begin();
while (mk != mapMasterKeys.end())
{
pwalletdbDecryption->EraseMasterKey((*mk).first);
mk++;
}
if (!pwalletdbDecryption->TxnCommit())
exit(1); //We now have keys decrypted in memory, but no on disk...die to avoid confusion and let the user reload their encrypted wallet.
delete pwalletdbDecryption;
pwalletdbDecryption = NULL;
}
// Need to completely rewrite the wallet file; if we don't, bdb might keep
// encrypted private keys in the database file which can be a reason of consistency issues.
CDB::Rewrite(strWalletFile);
}
NotifyStatusChanged(this);
return true;
}
int64_t CWallet::IncOrderPosNext(CWalletDB *pwalletdb)
{
int64_t nRet = nOrderPosNext++;
if (pwalletdb) {
pwalletdb->WriteOrderPosNext(nOrderPosNext);
} else {
CWalletDB(strWalletFile).WriteOrderPosNext(nOrderPosNext);
}
return nRet;
}
CWallet::TxItems CWallet::OrderedTxItems(std::list<CAccountingEntry>& acentries, std::string strAccount)
{
CWalletDB walletdb(strWalletFile);
// First: get all CWalletTx and CAccountingEntry into a sorted-by-order multimap.
TxItems txOrdered;
// Note: maintaining indices in the database of (account,time) --> txid and (account, time) --> acentry
// would make this much faster for applications that do this a lot.
for (auto & it : mapWallet)
{
CWalletTx* wtx = &(it.second);
txOrdered.insert(std::make_pair(wtx->nOrderPos, TxPair(wtx, (CAccountingEntry*)nullptr)));
}
acentries.clear();
walletdb.ListAccountCreditDebit(strAccount, acentries);
for (CAccountingEntry& entry : acentries)
{
txOrdered.insert(std::make_pair(entry.nOrderPos, TxPair((CWalletTx*)nullptr, &entry)));
}
return txOrdered;
}
void CWallet::WalletUpdateSpent(const CTransaction &tx, bool fBlock)
{
// Anytime a signature is successfully verified, it's proof the outpoint is spent.
// Update the wallet spent flag if it doesn't know due to wallet.dat being
// restored from backup or the user making copies of wallet.dat.
{
LOCK(cs_wallet);
for (const CTxIn& txin : tx.vin)
{
auto mi = mapWallet.find(txin.prevout.hash);
if (mi != mapWallet.end())
{
CWalletTx& wtx = (*mi).second;
if (txin.prevout.n >= wtx.vout.size())
printf("WalletUpdateSpent: bad wtx %s\n", wtx.GetHash().ToString().c_str());
else if (!wtx.IsSpent(txin.prevout.n) && IsMine(wtx.vout[txin.prevout.n]))
{
printf("WalletUpdateSpent found spent coin %snvc %s\n", FormatMoney(wtx.GetCredit(MINE_ALL)).c_str(), wtx.GetHash().ToString().c_str());
wtx.MarkSpent(txin.prevout.n);
wtx.WriteToDisk();
NotifyTransactionChanged(this, txin.prevout.hash, CT_UPDATED);
vMintingWalletUpdated.push_back(txin.prevout.hash);
}
}
}
if (fBlock)
{
uint256 hash = tx.GetHash();
auto mi = mapWallet.find(hash);
CWalletTx& wtx = (*mi).second;
for (const CTxOut& txout : tx.vout)
{
if (IsMine(txout))
{
wtx.MarkUnspent(&txout - &tx.vout[0]);
wtx.WriteToDisk();
NotifyTransactionChanged(this, hash, CT_UPDATED);
vMintingWalletUpdated.push_back(hash);
}
}
}
}
}
void CWallet::MarkDirty()
{
{
LOCK(cs_wallet);
for (auto& item : mapWallet)
item.second.MarkDirty();
}
}
bool CWallet::AddToWallet(const CWalletTx& wtxIn)
{
uint256 hash = wtxIn.GetHash();
{
LOCK(cs_wallet);
// Inserts only if not already there, returns tx inserted or tx found
auto ret = mapWallet.insert(std::make_pair(hash, wtxIn));
CWalletTx& wtx = (*ret.first).second;
wtx.BindWallet(this);
bool fInsertedNew = ret.second;
if (fInsertedNew)
{
wtx.nTimeReceived = GetAdjustedTime();
wtx.nOrderPos = IncOrderPosNext();
wtx.nTimeSmart = wtx.nTimeReceived;
if (wtxIn.hashBlock != 0)
{
if (mapBlockIndex.count(wtxIn.hashBlock))
{
unsigned int latestNow = wtx.nTimeReceived;
unsigned int latestEntry = 0;
{
// Tolerate times up to the last timestamp in the wallet not more than 5 minutes into the future
int64_t latestTolerated = latestNow + 300;
std::list<CAccountingEntry> acentries;
TxItems txOrdered = OrderedTxItems(acentries);
for (TxItems::reverse_iterator it = txOrdered.rbegin(); it != txOrdered.rend(); ++it)
{
CWalletTx *const pwtx = (*it).second.first;
if (pwtx == &wtx)
continue;
CAccountingEntry *const pacentry = (*it).second.second;
int64_t nSmartTime;
if (pwtx)
{
nSmartTime = pwtx->nTimeSmart;
if (!nSmartTime)
nSmartTime = pwtx->nTimeReceived;
}
else
nSmartTime = pacentry->nTime;
if (nSmartTime <= latestTolerated)
{
latestEntry = nSmartTime;
if (nSmartTime > latestNow)
latestNow = nSmartTime;
break;
}
}
}
unsigned int& blocktime = mapBlockIndex[wtxIn.hashBlock]->nTime;
wtx.nTimeSmart = std::max(latestEntry, std::min(blocktime, latestNow));
}
else
printf("AddToWallet() : found %s in block %s not in index\n",
wtxIn.GetHash().ToString().substr(0,10).c_str(),
wtxIn.hashBlock.ToString().c_str());
}
}
bool fUpdated = false;
if (!fInsertedNew)
{
// Merge
if (wtxIn.hashBlock != 0 && wtxIn.hashBlock != wtx.hashBlock)
{
wtx.hashBlock = wtxIn.hashBlock;
fUpdated = true;
}
if (wtxIn.nIndex != -1 && (wtxIn.vMerkleBranch != wtx.vMerkleBranch || wtxIn.nIndex != wtx.nIndex))
{
wtx.vMerkleBranch = wtxIn.vMerkleBranch;
wtx.nIndex = wtxIn.nIndex;
fUpdated = true;
}
if (wtxIn.fFromMe && wtxIn.fFromMe != wtx.fFromMe)
{
wtx.fFromMe = wtxIn.fFromMe;
fUpdated = true;
}
fUpdated |= wtx.UpdateSpent(wtxIn.vfSpent);
}
//// debug print
printf("AddToWallet %s %s%s\n", wtxIn.GetHash().ToString().substr(0,10).c_str(), (fInsertedNew ? "new" : ""), (fUpdated ? "update" : ""));
// Write to disk
if (fInsertedNew || fUpdated)
if (!wtx.WriteToDisk())
return false;
#ifndef QT_GUI
// If default receiving address gets used, replace it with a new one
CScript scriptDefaultKey;
scriptDefaultKey.SetDestination(vchDefaultKey.GetID());
for (const CTxOut& txout : wtx.vout)
{
if (txout.scriptPubKey == scriptDefaultKey)
{
CPubKey newDefaultKey;
if (GetKeyFromPool(newDefaultKey, false))
{
SetDefaultKey(newDefaultKey);
SetAddressBookName(vchDefaultKey.GetID(), "");
}
}
}
#endif
// since AddToWallet is called directly for self-originating transactions, check for consumption of own coins
WalletUpdateSpent(wtx, (wtxIn.hashBlock != 0));
// Notify UI of new or updated transaction
NotifyTransactionChanged(this, hash, fInsertedNew ? CT_NEW : CT_UPDATED);
vMintingWalletUpdated.push_back(hash);
// notify an external script when a wallet transaction comes in or is updated
std::string strCmd = GetArg("-walletnotify", "");
if ( !strCmd.empty())
// thread runs free
boost::thread t(runCommand, regex_replace(strCmd, static_cast<std::regex>("%s"), wtxIn.GetHash().GetHex()));
}
return true;
}
// Add a transaction to the wallet, or update it.
// pblock is optional, but should be provided if the transaction is known to be in a block.
// If fUpdate is true, existing transactions will be updated.
bool CWallet::AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pblock, bool fUpdate)
{
uint256 hash = tx.GetHash();
{
LOCK(cs_wallet);
bool fExisted = mapWallet.count(hash) != 0;
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;
}
isminetype CWallet::IsMine(const CTxIn &txin) const
{
{
LOCK(cs_wallet);
auto mi = mapWallet.find(txin.prevout.hash);
if (mi != mapWallet.end())
{
const CWalletTx& prev = (*mi).second;
if (txin.prevout.n < prev.vout.size())
return IsMine(prev.vout[txin.prevout.n]);
}
}
return MINE_NO;
}
// marks certain txout's as spent
// returns true if any update took place
bool CWalletTx::UpdateSpent(const std::vector<char>& vfNewSpent)
{
bool fReturn = false;
for (unsigned int i = 0; i < vfNewSpent.size(); i++)
{
if (i == vfSpent.size())
break;
if (vfNewSpent[i] && !vfSpent[i])
{
vfSpent[i] = true;
fReturn = true;
fAvailableCreditCached = fAvailableWatchCreditCached = false;
}
}
return fReturn;
}
// make sure balances are recalculated
void CWalletTx::MarkDirty()
{
fCreditCached = false;
fAvailableCreditCached = fAvailableWatchCreditCached = false;
fDebitCached = fWatchDebitCached = false;
fChangeCached = false;
}
void CWalletTx::BindWallet(CWallet *pwalletIn)
{
pwallet = pwalletIn;
MarkDirty();
}
void CWalletTx::MarkSpent(unsigned int nOut)
{
if (nOut >= vout.size())
throw std::runtime_error("CWalletTx::MarkSpent() : nOut out of range");
vfSpent.resize(vout.size());
if (!vfSpent[nOut])
{
vfSpent[nOut] = true;
fAvailableCreditCached = fAvailableWatchCreditCached = false;
}
}
void CWalletTx::MarkUnspent(unsigned int nOut)
{
if (nOut >= vout.size())
throw std::runtime_error("CWalletTx::MarkUnspent() : nOut out of range");
vfSpent.resize(vout.size());
if (vfSpent[nOut])
{
vfSpent[nOut] = false;
fAvailableCreditCached = fAvailableWatchCreditCached = false;
}
}
bool CWalletTx::IsSpent(unsigned int nOut) const
{
if (nOut >= vout.size())
throw std::runtime_error("CWalletTx::IsSpent() : nOut out of range");
if (nOut >= vfSpent.size())
return false;
return (!!vfSpent[nOut]);
}
int64_t CWallet::GetDebit(const CTxIn &txin, const isminefilter& filter) const
{
{
LOCK(cs_wallet);
auto 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]) & filter)
return prev.vout[txin.prevout.n].nValue;
}
}
return 0;
}
isminetype CWallet::IsMine(const CTxOut& txout) const
{
return ::IsMine(*this, txout.scriptPubKey);
}
int64_t CWallet::GetCredit(const CTxOut& txout, const isminefilter& filter) const
{
if (!MoneyRange(txout.nValue))
throw std::runtime_error("CWallet::GetCredit() : value out of range");
return (IsMine(txout) & filter ? txout.nValue : 0);
}
bool CWallet::IsChange(const CTxOut& txout) const
{
// TODO: fix handling of 'change' outputs. The assumption is that any
// payment to a script that is ours, 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 (::IsMine(*this, txout.scriptPubKey))
{
CTxDestination address;
if (!ExtractDestination(txout.scriptPubKey, address))
return true;
LOCK(cs_wallet);
if (!mapAddressBook.count(address))
return true;
}
return false;
}
int64_t CWallet::GetChange(const CTxOut& txout) const
{
if (!MoneyRange(txout.nValue))
throw std::runtime_error("CWallet::GetChange() : value out of range");
return (IsChange(txout) ? txout.nValue : 0);
}
bool CWallet::IsMine(const CTransaction& tx) const
{
for (const CTxOut& txout : tx.vout)
if (IsMine(txout) && txout.nValue >= nMinimumInputValue)
return true;
return false;
}
bool CWallet::IsFromMe(const CTransaction& tx) const
{
return (GetDebit(tx, MINE_ALL) > 0);
}
int64_t CWallet::GetDebit(const CTransaction& tx, const isminefilter& filter) const
{
int64_t nDebit = 0;
for (const CTxIn& txin : tx.vin)
{
nDebit += GetDebit(txin, filter);
if (!MoneyRange(nDebit))
throw std::runtime_error("CWallet::GetDebit() : value out of range");
}
return nDebit;
}
int64_t CWallet::GetCredit(const CTransaction& tx, const isminefilter& filter) const
{
int64_t nCredit = 0;
for (const CTxOut& txout : tx.vout)
{
nCredit += GetCredit(txout, filter);
if (!MoneyRange(nCredit))
throw std::runtime_error("CWallet::GetCredit() : value out of range");
}
return nCredit;
}
int64_t CWallet::GetChange(const CTransaction& tx) const
{
int64_t nChange = 0;
for (const CTxOut& txout : tx.vout)
{
nChange += GetChange(txout);
if (!MoneyRange(nChange))
throw std::runtime_error("CWallet::GetChange() : value out of range");
}
return nChange;
}
int64_t CWalletTx::GetTxTime() const
{
return nTime;
}
int CWalletTx::GetRequestCount() const
{
// Returns -1 if it wasn't being tracked
int nRequests = -1;
{
LOCK(pwallet->cs_wallet);
if (IsCoinBase() || IsCoinStake())
{
// Generated block
if (hashBlock != 0)
{
auto mi = pwallet->mapRequestCount.find(hashBlock);
if (mi != pwallet->mapRequestCount.end())
nRequests = (*mi).second;
}