65e3a1e762
We're using GetRandomBytes in several contexts where it's either unwieldy to return an error, or an error would mean a fatal exception anyhow. @gmaxwell checked OpenSSL a while ago and discovered that it never actually fails, but it can't hurt to be a bit paranoid here.
2365 lines
76 KiB
C++
2365 lines
76 KiB
C++
// 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 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 "checkpoints.h"
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#include "coincontrol.h"
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#include "net.h"
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#include "script/script.h"
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#include "script/sign.h"
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#include "timedata.h"
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#include "util.h"
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#include "utilmoneystr.h"
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#include <assert.h>
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#include <boost/algorithm/string/replace.hpp>
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#include <boost/thread.hpp>
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using namespace std;
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/**
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* Settings
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*/
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CFeeRate payTxFee(DEFAULT_TRANSACTION_FEE);
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unsigned int nTxConfirmTarget = 1;
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bool bSpendZeroConfChange = true;
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/**
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* Fees smaller than this (in satoshi) are considered zero fee (for transaction creation)
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* Override with -mintxfee
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*/
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CFeeRate CWallet::minTxFee = CFeeRate(10000);
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/** @defgroup mapWallet
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*
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* @{
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*/
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struct CompareValueOnly
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{
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bool operator()(const pair<CAmount, pair<const CWalletTx*, unsigned int> >& t1,
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const pair<CAmount, 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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std::string COutput::ToString() const
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{
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return strprintf("COutput(%s, %d, %d) [%s]", tx->GetHash().ToString(), i, nDepth, FormatMoney(tx->vout[i].nValue));
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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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// check if we need to remove from watch-only
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CScript script;
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script = GetScriptForDestination(pubkey.GetID());
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if (HaveWatchOnly(script))
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RemoveWatchOnly(script);
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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::LoadCScript(const CScript& redeemScript)
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{
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/* A sanity check was added in pull #3843 to avoid adding redeemScripts
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* that never can be redeemed. However, old wallets may still contain
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* these. Do not add them to the wallet and warn. */
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if (redeemScript.size() > MAX_SCRIPT_ELEMENT_SIZE)
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{
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std::string strAddr = CBitcoinAddress(CScriptID(redeemScript)).ToString();
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LogPrintf("%s: Warning: This wallet contains a redeemScript of size %i which exceeds maximum size %i thus can never be redeemed. Do not use address %s.\n",
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__func__, redeemScript.size(), MAX_SCRIPT_ELEMENT_SIZE, strAddr);
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return true;
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}
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return CCryptoKeyStore::AddCScript(redeemScript);
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}
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bool CWallet::AddWatchOnly(const CScript &dest)
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{
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if (!CCryptoKeyStore::AddWatchOnly(dest))
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return false;
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nTimeFirstKey = 1; // No birthday information for watch-only keys.
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NotifyWatchonlyChanged(true);
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if (!fFileBacked)
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return true;
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return CWalletDB(strWalletFile).WriteWatchOnly(dest);
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}
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bool CWallet::RemoveWatchOnly(const CScript &dest)
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{
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AssertLockHeld(cs_wallet);
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if (!CCryptoKeyStore::RemoveWatchOnly(dest))
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return false;
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if (!HaveWatchOnly())
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NotifyWatchonlyChanged(false);
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if (fFileBacked)
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if (!CWalletDB(strWalletFile).EraseWatchOnly(dest))
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return false;
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return true;
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}
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bool CWallet::LoadWatchOnly(const CScript &dest)
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{
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return CCryptoKeyStore::AddWatchOnly(dest);
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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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/**
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* Outpoint is spent if any non-conflicted transaction
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* spends it:
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*/
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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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GetRandBytes(&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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GetRandBytes(&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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assert(!pwalletdbEncryption);
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pwalletdbEncryption = new CWalletDB(strWalletFile);
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if (!pwalletdbEncryption->TxnBegin()) {
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delete pwalletdbEncryption;
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pwalletdbEncryption = NULL;
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return false;
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}
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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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delete pwalletdbEncryption;
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}
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// We now probably have half of our keys encrypted in memory, and half not...
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// die and let the user reload their unencrypted wallet.
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assert(false);
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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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delete pwalletdbEncryption;
|
|
// We now have keys encrypted in memory, but not on disk...
|
|
// die to avoid confusion and let the user reload their unencrypted wallet.
|
|
assert(false);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
int64_t CWallet::IncOrderPosNext(CWalletDB *pwalletdb)
|
|
{
|
|
AssertLockHeld(cs_wallet); // nOrderPosNext
|
|
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)
|
|
{
|
|
AssertLockHeld(cs_wallet); // mapWallet
|
|
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 (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
|
|
{
|
|
CWalletTx* wtx = &((*it).second);
|
|
txOrdered.insert(make_pair(wtx->nOrderPos, TxPair(wtx, (CAccountingEntry*)0)));
|
|
}
|
|
acentries.clear();
|
|
walletdb.ListAccountCreditDebit(strAccount, acentries);
|
|
BOOST_FOREACH(CAccountingEntry& entry, acentries)
|
|
{
|
|
txOrdered.insert(make_pair(entry.nOrderPos, TxPair((CWalletTx*)0, &entry)));
|
|
}
|
|
|
|
return txOrdered;
|
|
}
|
|
|
|
void CWallet::MarkDirty()
|
|
{
|
|
{
|
|
LOCK(cs_wallet);
|
|
BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
|
|
item.second.MarkDirty();
|
|
}
|
|
}
|
|
|
|
bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet)
|
|
{
|
|
uint256 hash = wtxIn.GetHash();
|
|
|
|
if (fFromLoadWallet)
|
|
{
|
|
mapWallet[hash] = wtxIn;
|
|
mapWallet[hash].BindWallet(this);
|
|
AddToSpends(hash);
|
|
}
|
|
else
|
|
{
|
|
LOCK(cs_wallet);
|
|
// Inserts only if not already there, returns tx inserted or tx found
|
|
pair<map<uint256, CWalletTx>::iterator, bool> ret = mapWallet.insert(make_pair(hash, wtxIn));
|
|
CWalletTx& wtx = (*ret.first).second;
|
|
wtx.BindWallet(this);
|
|
bool fInsertedNew = ret.second;
|
|
if (fInsertedNew)
|
|
{
|
|
wtx.nTimeReceived = GetAdjustedTime();
|
|
wtx.nOrderPos = IncOrderPosNext();
|
|
|
|
wtx.nTimeSmart = wtx.nTimeReceived;
|
|
if (wtxIn.hashBlock != 0)
|
|
{
|
|
if (mapBlockIndex.count(wtxIn.hashBlock))
|
|
{
|
|
int64_t latestNow = wtx.nTimeReceived;
|
|
int64_t 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;
|
|
}
|
|
}
|
|
}
|
|
|
|
int64_t blocktime = mapBlockIndex[wtxIn.hashBlock]->GetBlockTime();
|
|
wtx.nTimeSmart = std::max(latestEntry, std::min(blocktime, latestNow));
|
|
}
|
|
else
|
|
LogPrintf("AddToWallet() : found %s in block %s not in index\n",
|
|
wtxIn.GetHash().ToString(),
|
|
wtxIn.hashBlock.ToString());
|
|
}
|
|
AddToSpends(hash);
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
//// 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 CTransaction& tx, const CBlock* pblock, bool fUpdate)
|
|
{
|
|
{
|
|
AssertLockHeld(cs_wallet);
|
|
bool fExisted = mapWallet.count(tx.GetHash()) != 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);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void CWallet::SyncTransaction(const CTransaction& tx, const CBlock* pblock)
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
if (!AddToWalletIfInvolvingMe(tx, pblock, true))
|
|
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;
|
|
}
|
|
|
|
|
|
isminetype 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())
|
|
return IsMine(prev.vout[txin.prevout.n]);
|
|
}
|
|
}
|
|
return ISMINE_NO;
|
|
}
|
|
|
|
CAmount CWallet::GetDebit(const CTxIn &txin, const isminefilter& filter) 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]) & filter)
|
|
return prev.vout[txin.prevout.n].nValue;
|
|
}
|
|
}
|
|
return 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 is not 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 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<COutputEntry>& listReceived,
|
|
list<COutputEntry>& listSent, CAmount& nFee, string& strSentAccount, const isminefilter& filter) const
|
|
{
|
|
nFee = 0;
|
|
listReceived.clear();
|
|
listSent.clear();
|
|
strSentAccount = strFromAccount;
|
|
|
|
// Compute fee:
|
|
CAmount nDebit = GetDebit(filter);
|
|
if (nDebit > 0) // debit>0 means we signed/sent this transaction
|
|
{
|
|
CAmount nValueOut = GetValueOut();
|
|
nFee = nDebit - nValueOut;
|
|
}
|
|
|
|
// Sent/received.
|
|
for (unsigned int i = 0; i < vout.size(); ++i)
|
|
{
|
|
const CTxOut& txout = vout[i];
|
|
isminetype fIsMine = pwallet->IsMine(txout);
|
|
// 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;
|
|
}
|
|
else if (!(fIsMine & filter))
|
|
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();
|
|
}
|
|
|
|
COutputEntry output = {address, txout.nValue, (int)i};
|
|
|
|
// If we are debited by the transaction, add the output as a "sent" entry
|
|
if (nDebit > 0)
|
|
listSent.push_back(output);
|
|
|
|
// If we are receiving the output, add it as a "received" entry
|
|
if (fIsMine & filter)
|
|
listReceived.push_back(output);
|
|
}
|
|
|
|
}
|
|
|
|
void CWalletTx::GetAccountAmounts(const string& strAccount, CAmount& nReceived,
|
|
CAmount& nSent, CAmount& nFee, const isminefilter& filter) const
|
|
{
|
|
nReceived = nSent = nFee = 0;
|
|
|
|
CAmount allFee;
|
|
string strSentAccount;
|
|
list<COutputEntry> listReceived;
|
|
list<COutputEntry> listSent;
|
|
GetAmounts(listReceived, listSent, allFee, strSentAccount, filter);
|
|
|
|
if (strAccount == strSentAccount)
|
|
{
|
|
BOOST_FOREACH(const COutputEntry& s, listSent)
|
|
nSent += s.amount;
|
|
nFee = allFee;
|
|
}
|
|
{
|
|
LOCK(pwallet->cs_wallet);
|
|
BOOST_FOREACH(const COutputEntry& r, listReceived)
|
|
{
|
|
if (pwallet->mapAddressBook.count(r.destination))
|
|
{
|
|
map<CTxDestination, CAddressBookData>::const_iterator mi = pwallet->mapAddressBook.find(r.destination);
|
|
if (mi != pwallet->mapAddressBook.end() && (*mi).second.name == strAccount)
|
|
nReceived += r.amount;
|
|
}
|
|
else if (strAccount.empty())
|
|
{
|
|
nReceived += r.amount;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
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;
|
|
int64_t nNow = GetTime();
|
|
|
|
CBlockIndex* pindex = pindexStart;
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
|
|
// no need to read and scan block, if block was created before
|
|
// our wallet birthday (as adjusted for block time variability)
|
|
while (pindex && nTimeFirstKey && (pindex->GetBlockTime() < (nTimeFirstKey - 7200)))
|
|
pindex = chainActive.Next(pindex);
|
|
|
|
ShowProgress(_("Rescanning..."), 0); // show rescan progress in GUI as dialog or on splashscreen, if -rescan on startup
|
|
double dProgressStart = Checkpoints::GuessVerificationProgress(pindex, false);
|
|
double dProgressTip = Checkpoints::GuessVerificationProgress(chainActive.Tip(), false);
|
|
while (pindex)
|
|
{
|
|
if (pindex->nHeight % 100 == 0 && dProgressTip - dProgressStart > 0.0)
|
|
ShowProgress(_("Rescanning..."), std::max(1, std::min(99, (int)((Checkpoints::GuessVerificationProgress(pindex, false) - dProgressStart) / (dProgressTip - dProgressStart) * 100))));
|
|
|
|
CBlock block;
|
|
ReadBlockFromDisk(block, pindex);
|
|
BOOST_FOREACH(CTransaction& tx, block.vtx)
|
|
{
|
|
if (AddToWalletIfInvolvingMe(tx, &block, fUpdate))
|
|
ret++;
|
|
}
|
|
pindex = chainActive.Next(pindex);
|
|
if (GetTime() >= nNow + 60) {
|
|
nNow = GetTime();
|
|
LogPrintf("Still rescanning. At block %d. Progress=%f\n", pindex->nHeight, Checkpoints::GuessVerificationProgress(pindex));
|
|
}
|
|
}
|
|
ShowProgress(_("Rescanning..."), 100); // hide progress dialog in GUI
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void CWallet::ReacceptWalletTransactions()
|
|
{
|
|
LOCK2(cs_main, 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) {
|
|
LogPrintf("Relaying wtx %s\n", GetHash().ToString());
|
|
RelayTransaction((CTransaction)*this);
|
|
}
|
|
}
|
|
}
|
|
|
|
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();
|
|
}
|
|
}
|
|
}
|
|
|
|
/** @} */ // end of mapWallet
|
|
|
|
|
|
|
|
|
|
/** @defgroup Actions
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
|
|
CAmount CWallet::GetBalance() const
|
|
{
|
|
CAmount nTotal = 0;
|
|
{
|
|
LOCK2(cs_main, 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;
|
|
}
|
|
|
|
CAmount CWallet::GetUnconfirmedBalance() const
|
|
{
|
|
CAmount nTotal = 0;
|
|
{
|
|
LOCK2(cs_main, 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;
|
|
}
|
|
|
|
CAmount CWallet::GetImmatureBalance() const
|
|
{
|
|
CAmount nTotal = 0;
|
|
{
|
|
LOCK2(cs_main, 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;
|
|
}
|
|
|
|
CAmount CWallet::GetWatchOnlyBalance() const
|
|
{
|
|
CAmount nTotal = 0;
|
|
{
|
|
LOCK2(cs_main, 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->GetAvailableWatchOnlyCredit();
|
|
}
|
|
}
|
|
|
|
return nTotal;
|
|
}
|
|
|
|
CAmount CWallet::GetUnconfirmedWatchOnlyBalance() const
|
|
{
|
|
CAmount nTotal = 0;
|
|
{
|
|
LOCK2(cs_main, 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->GetAvailableWatchOnlyCredit();
|
|
}
|
|
}
|
|
return nTotal;
|
|
}
|
|
|
|
CAmount CWallet::GetImmatureWatchOnlyBalance() const
|
|
{
|
|
CAmount nTotal = 0;
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
|
|
{
|
|
const CWalletTx* pcoin = &(*it).second;
|
|
nTotal += pcoin->GetImmatureWatchOnlyCredit();
|
|
}
|
|
}
|
|
return nTotal;
|
|
}
|
|
|
|
/**
|
|
* populate vCoins with vector of available COutputs.
|
|
*/
|
|
void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed, const CCoinControl *coinControl) const
|
|
{
|
|
vCoins.clear();
|
|
|
|
{
|
|
LOCK2(cs_main, 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++) {
|
|
isminetype mine = IsMine(pcoin->vout[i]);
|
|
if (!(IsSpent(wtxid, i)) && mine != ISMINE_NO &&
|
|
!IsLockedCoin((*it).first, i) && pcoin->vout[i].nValue > 0 &&
|
|
(!coinControl || !coinControl->HasSelected() || coinControl->IsSelected((*it).first, i)))
|
|
vCoins.push_back(COutput(pcoin, i, nDepth, (mine & ISMINE_SPENDABLE) != ISMINE_NO));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void ApproximateBestSubset(vector<pair<CAmount, pair<const CWalletTx*,unsigned int> > >vValue, const CAmount& nTotalLower, const CAmount& nTargetValue,
|
|
vector<char>& vfBest, CAmount& 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);
|
|
CAmount 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 is 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(const CAmount& nTargetValue, int nConfMine, int nConfTheirs, vector<COutput> vCoins,
|
|
set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, CAmount& nValueRet) const
|
|
{
|
|
setCoinsRet.clear();
|
|
nValueRet = 0;
|
|
|
|
// List of values less than target
|
|
pair<CAmount, pair<const CWalletTx*,unsigned int> > coinLowestLarger;
|
|
coinLowestLarger.first = std::numeric_limits<CAmount>::max();
|
|
coinLowestLarger.second.first = NULL;
|
|
vector<pair<CAmount, pair<const CWalletTx*,unsigned int> > > vValue;
|
|
CAmount nTotalLower = 0;
|
|
|
|
random_shuffle(vCoins.begin(), vCoins.end(), GetRandInt);
|
|
|
|
BOOST_FOREACH(const COutput &output, vCoins)
|
|
{
|
|
if (!output.fSpendable)
|
|
continue;
|
|
|
|
const CWalletTx *pcoin = output.tx;
|
|
|
|
if (output.nDepth < (pcoin->IsFromMe(ISMINE_ALL) ? nConfMine : nConfTheirs))
|
|
continue;
|
|
|
|
int i = output.i;
|
|
CAmount n = pcoin->vout[i].nValue;
|
|
|
|
pair<CAmount,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;
|
|
CAmount 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(const CAmount& nTargetValue, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, CAmount& 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)
|
|
{
|
|
if(!out.fSpendable)
|
|
continue;
|
|
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, CAmount> >& vecSend,
|
|
CWalletTx& wtxNew, CReserveKey& reservekey, CAmount& nFeeRet, std::string& strFailReason, const CCoinControl* coinControl)
|
|
{
|
|
CAmount nValue = 0;
|
|
BOOST_FOREACH (const PAIRTYPE(CScript, CAmount)& 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.fTimeReceivedIsTxTime = true;
|
|
wtxNew.BindWallet(this);
|
|
CMutableTransaction txNew;
|
|
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
{
|
|
nFeeRet = payTxFee.GetFeePerK();
|
|
while (true)
|
|
{
|
|
txNew.vin.clear();
|
|
txNew.vout.clear();
|
|
wtxNew.fFromMe = true;
|
|
|
|
CAmount nTotalValue = nValue + nFeeRet;
|
|
double dPriority = 0;
|
|
// vouts to the payees
|
|
BOOST_FOREACH (const PAIRTYPE(CScript, CAmount)& s, vecSend)
|
|
{
|
|
CTxOut txout(s.second, s.first);
|
|
if (txout.IsDust(::minRelayTxFee))
|
|
{
|
|
strFailReason = _("Transaction amount too small");
|
|
return false;
|
|
}
|
|
txNew.vout.push_back(txout);
|
|
}
|
|
|
|
// Choose coins to use
|
|
set<pair<const CWalletTx*,unsigned int> > setCoins;
|
|
CAmount nValueIn = 0;
|
|
if (!SelectCoins(nTotalValue, setCoins, nValueIn, coinControl))
|
|
{
|
|
strFailReason = _("Insufficient funds");
|
|
return false;
|
|
}
|
|
BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
|
|
{
|
|
CAmount 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);
|
|
}
|
|
|
|
CAmount nChange = nValueIn - nValue - nFeeRet;
|
|
|
|
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 = GetScriptForDestination(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 = GetScriptForDestination(vchPubKey.GetID());
|
|
}
|
|
|
|
CTxOut newTxOut(nChange, scriptChange);
|
|
|
|
// Never create dust outputs; if we would, just
|
|
// add the dust to the fee.
|
|
if (newTxOut.IsDust(::minRelayTxFee))
|
|
{
|
|
nFeeRet += nChange;
|
|
reservekey.ReturnKey();
|
|
}
|
|
else
|
|
{
|
|
// Insert change txn at random position:
|
|
vector<CTxOut>::iterator position = txNew.vout.begin()+GetRandInt(txNew.vout.size()+1);
|
|
txNew.vout.insert(position, newTxOut);
|
|
}
|
|
}
|
|
else
|
|
reservekey.ReturnKey();
|
|
|
|
// Fill vin
|
|
BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
|
|
txNew.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, txNew, nIn++))
|
|
{
|
|
strFailReason = _("Signing transaction failed");
|
|
return false;
|
|
}
|
|
|
|
// Embed the constructed transaction data in wtxNew.
|
|
*static_cast<CTransaction*>(&wtxNew) = CTransaction(txNew);
|
|
|
|
// 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);
|
|
|
|
CAmount nFeeNeeded = GetMinimumFee(nBytes, nTxConfirmTarget, mempool);
|
|
|
|
if (nFeeRet >= nFeeNeeded)
|
|
break; // Done, enough fee included.
|
|
|
|
// Too big to send for free? Include more fee and try again:
|
|
if (nBytes > MAX_FREE_TRANSACTION_CREATE_SIZE)
|
|
{
|
|
nFeeRet = nFeeNeeded;
|
|
continue;
|
|
}
|
|
|
|
// Not enough fee: enough priority?
|
|
double dPriorityNeeded = mempool.estimatePriority(nTxConfirmTarget);
|
|
// Not enough mempool history to estimate: use hard-coded AllowFree.
|
|
if (dPriorityNeeded <= 0 && AllowFree(dPriority))
|
|
break;
|
|
|
|
// Small enough, and priority high enough, to send for free
|
|
if (dPriorityNeeded > 0 && dPriority >= dPriorityNeeded)
|
|
break;
|
|
|
|
// Include more fee and try again.
|
|
nFeeRet = nFeeNeeded;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool CWallet::CreateTransaction(CScript scriptPubKey, const CAmount& nValue,
|
|
CWalletTx& wtxNew, CReserveKey& reservekey, CAmount& nFeeRet, std::string& strFailReason, const CCoinControl* coinControl)
|
|
{
|
|
vector< pair<CScript, CAmount> > 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(const CTxDestination &address, CAmount nValue, CWalletTx& wtxNew)
|
|
{
|
|
// Check amount
|
|
if (nValue <= 0)
|
|
return _("Invalid amount");
|
|
if (nValue > GetBalance())
|
|
return _("Insufficient funds");
|
|
|
|
string strError;
|
|
if (IsLocked())
|
|
{
|
|
strError = _("Error: Wallet locked, unable to create transaction!");
|
|
LogPrintf("SendMoney() : %s", strError);
|
|
return strError;
|
|
}
|
|
|
|
// Parse Bitcoin address
|
|
CScript scriptPubKey = GetScriptForDestination(address);
|
|
|
|
// Create and send the transaction
|
|
CReserveKey reservekey(this);
|
|
CAmount nFeeRequired;
|
|
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 "";
|
|
}
|
|
|
|
|
|
|
|
CAmount CWallet::GetMinimumFee(unsigned int nTxBytes, unsigned int nConfirmTarget, const CTxMemPool& pool)
|
|
{
|
|
// payTxFee is user-set "I want to pay this much"
|
|
CAmount nFeeNeeded = payTxFee.GetFee(nTxBytes);
|
|
// User didn't set: use -txconfirmtarget to estimate...
|
|
if (nFeeNeeded == 0)
|
|
nFeeNeeded = pool.estimateFee(nConfirmTarget).GetFee(nTxBytes);
|
|
// ... unless we don't have enough mempool data, in which case fall
|
|
// back to a hard-coded fee
|
|
if (nFeeNeeded == 0)
|
|
nFeeNeeded = minTxFee.GetFee(nTxBytes);
|
|
return nFeeNeeded;
|
|
}
|
|
|
|
|
|
|
|
|
|
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();
|
|
|
|
uiInterface.LoadWallet(this);
|
|
|
|
return DB_LOAD_OK;
|
|
}
|
|
|
|
|
|
DBErrors CWallet::ZapWalletTx(std::vector<CWalletTx>& vWtx)
|
|
{
|
|
if (!fFileBacked)
|
|
return DB_LOAD_OK;
|
|
DBErrors nZapWalletTxRet = CWalletDB(strWalletFile,"cr+").ZapWalletTx(this, vWtx);
|
|
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
|
|
// that 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) != ISMINE_NO,
|
|
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) != ISMINE_NO, "", 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=%u\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);
|
|
}
|
|
}
|
|
|
|
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, CAmount> CWallet::GetAddressBalances()
|
|
{
|
|
map<CTxDestination, CAmount> 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(ISMINE_ALL) ? 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;
|
|
|
|
CAmount 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 {
|
|
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);
|
|
}
|
|
}
|
|
|
|
/** @} */ // end of Actions
|
|
|
|
class CAffectedKeysVisitor : public boost::static_visitor<void> {
|
|
private:
|
|
const CKeyStore &keystore;
|
|
std::vector<CKeyID> &vKeys;
|
|
|
|
public:
|
|
CAffectedKeysVisitor(const CKeyStore &keystoreIn, std::vector<CKeyID> &vKeysIn) : keystore(keystoreIn), vKeys(vKeysIn) {}
|
|
|
|
void Process(const CScript &script) {
|
|
txnouttype type;
|
|
std::vector<CTxDestination> vDest;
|
|
int nRequired;
|
|
if (ExtractDestinations(script, type, vDest, nRequired)) {
|
|
BOOST_FOREACH(const CTxDestination &dest, vDest)
|
|
boost::apply_visitor(*this, dest);
|
|
}
|
|
}
|
|
|
|
void operator()(const CKeyID &keyId) {
|
|
if (keystore.HaveKey(keyId))
|
|
vKeys.push_back(keyId);
|
|
}
|
|
|
|
void operator()(const CScriptID &scriptId) {
|
|
CScript script;
|
|
if (keystore.GetCScript(scriptId, script))
|
|
Process(script);
|
|
}
|
|
|
|
void operator()(const CNoDestination &none) {}
|
|
};
|
|
|
|
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;
|
|
BlockMap::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
|
|
CAffectedKeysVisitor(*this, vAffected).Process(txout.scriptPubKey);
|
|
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->GetBlockTime() - 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;
|
|
}
|
|
|
|
CKeyPool::CKeyPool()
|
|
{
|
|
nTime = GetTime();
|
|
}
|
|
|
|
CKeyPool::CKeyPool(const CPubKey& vchPubKeyIn)
|
|
{
|
|
nTime = GetTime();
|
|
vchPubKey = vchPubKeyIn;
|
|
}
|
|
|
|
CWalletKey::CWalletKey(int64_t nExpires)
|
|
{
|
|
nTimeCreated = (nExpires ? GetTime() : 0);
|
|
nTimeExpires = nExpires;
|
|
}
|
|
|
|
int CMerkleTx::SetMerkleBranch(const CBlock& block)
|
|
{
|
|
AssertLockHeld(cs_main);
|
|
CBlock blockTmp;
|
|
|
|
// Update the tx's hashBlock
|
|
hashBlock = block.GetHash();
|
|
|
|
// Locate the transaction
|
|
for (nIndex = 0; nIndex < (int)block.vtx.size(); nIndex++)
|
|
if (block.vtx[nIndex] == *(CTransaction*)this)
|
|
break;
|
|
if (nIndex == (int)block.vtx.size())
|
|
{
|
|
vMerkleBranch.clear();
|
|
nIndex = -1;
|
|
LogPrintf("ERROR: SetMerkleBranch() : couldn't find tx in block\n");
|
|
return 0;
|
|
}
|
|
|
|
// Fill in merkle branch
|
|
vMerkleBranch = block.GetMerkleBranch(nIndex);
|
|
|
|
// Is the tx in a block that's in the main chain
|
|
BlockMap::iterator mi = mapBlockIndex.find(hashBlock);
|
|
if (mi == mapBlockIndex.end())
|
|
return 0;
|
|
const CBlockIndex* pindex = (*mi).second;
|
|
if (!pindex || !chainActive.Contains(pindex))
|
|
return 0;
|
|
|
|
return chainActive.Height() - pindex->nHeight + 1;
|
|
}
|
|
|
|
int CMerkleTx::GetDepthInMainChainINTERNAL(const CBlockIndex* &pindexRet) const
|
|
{
|
|
if (hashBlock == 0 || nIndex == -1)
|
|
return 0;
|
|
AssertLockHeld(cs_main);
|
|
|
|
// Find the block it claims to be in
|
|
BlockMap::iterator mi = mapBlockIndex.find(hashBlock);
|
|
if (mi == mapBlockIndex.end())
|
|
return 0;
|
|
CBlockIndex* pindex = (*mi).second;
|
|
if (!pindex || !chainActive.Contains(pindex))
|
|
return 0;
|
|
|
|
// Make sure the merkle branch connects to this block
|
|
if (!fMerkleVerified)
|
|
{
|
|
if (CBlock::CheckMerkleBranch(GetHash(), vMerkleBranch, nIndex) != pindex->hashMerkleRoot)
|
|
return 0;
|
|
fMerkleVerified = true;
|
|
}
|
|
|
|
pindexRet = pindex;
|
|
return chainActive.Height() - pindex->nHeight + 1;
|
|
}
|
|
|
|
int CMerkleTx::GetDepthInMainChain(const CBlockIndex* &pindexRet) const
|
|
{
|
|
AssertLockHeld(cs_main);
|
|
int nResult = GetDepthInMainChainINTERNAL(pindexRet);
|
|
if (nResult == 0 && !mempool.exists(GetHash()))
|
|
return -1; // Not in chain, not in mempool
|
|
|
|
return nResult;
|
|
}
|
|
|
|
int CMerkleTx::GetBlocksToMaturity() const
|
|
{
|
|
if (!IsCoinBase())
|
|
return 0;
|
|
return max(0, (COINBASE_MATURITY+1) - GetDepthInMainChain());
|
|
}
|
|
|
|
|
|
bool CMerkleTx::AcceptToMemoryPool(bool fLimitFree, bool fRejectInsaneFee)
|
|
{
|
|
CValidationState state;
|
|
return ::AcceptToMemoryPool(mempool, state, *this, fLimitFree, NULL, fRejectInsaneFee);
|
|
}
|
|
|