Hush Full Node software. We were censored from Github, this is where all development happens now.
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5071 lines
178 KiB
5071 lines
178 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2014 The Bitcoin Core developers
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// Copyright (c) 2016-2023 The Hush developers
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// Distributed under the GPLv3 software license, see the accompanying
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// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
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/******************************************************************************
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* Copyright © 2014-2019 The SuperNET Developers. *
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* *
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* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
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* the top-level directory of this distribution for the individual copyright *
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* holder information and the developer policies on copyright and licensing. *
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* *
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* Unless otherwise agreed in a custom licensing agreement, no part of the *
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* SuperNET software, including this file may be copied, modified, propagated *
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* or distributed except according to the terms contained in the LICENSE file *
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* *
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* Removal or modification of this copyright notice is prohibited. *
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* *
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******************************************************************************/
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#include "wallet/wallet.h"
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#include "asyncrpcqueue.h"
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#include "checkpoints.h"
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#include "coincontrol.h"
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#include "consensus/upgrades.h"
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#include "consensus/validation.h"
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#include "consensus/consensus.h"
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#include "init.h"
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#include "key_io.h"
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#include "main.h"
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#include "net.h"
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#include "rpc/protocol.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 "utilmoneystr.h"
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#include "zcash/Note.hpp"
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#include "crypter.h"
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#include "coins.h"
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#include "wallet/asyncrpcoperation_saplingconsolidation.h"
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#include "wallet/asyncrpcoperation_sweep.h"
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#include "zcash/zip32.h"
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#include "cc/CCinclude.h"
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#include <assert.h>
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#include <boost/algorithm/string/replace.hpp>
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#include <boost/filesystem.hpp>
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#include <boost/thread.hpp>
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#if defined(__GLIBC__)
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#include <malloc.h>
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#endif
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using namespace std;
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using namespace libzcash;
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/**
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* Settings
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*/
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const char * DEFAULT_WALLET_DAT = "wallet.dat";
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CFeeRate payTxFee(DEFAULT_TRANSACTION_FEE);
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CAmount maxTxFee = DEFAULT_TRANSACTION_MAXFEE;
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unsigned int nTxConfirmTarget = DEFAULT_TX_CONFIRM_TARGET;
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bool bSpendZeroConfChange = true;
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bool fSendFreeTransactions = false;
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bool fPayAtLeastCustomFee = true;
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#include "hush_defs.h"
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CBlockIndex *hush_chainactive(int32_t height);
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extern std::string DONATION_PUBKEY;
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extern int32_t HUSH_LOADINGBLOCKS;
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int32_t hush_dpowconfs(int32_t height,int32_t numconfs);
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int tx_height( const uint256 &hash );
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bool fTxDeleteEnabled = false;
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bool fTxConflictDeleteEnabled = false;
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int fDeleteInterval = DEFAULT_TX_DELETE_INTERVAL;
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unsigned int fDeleteTransactionsAfterNBlocks = DEFAULT_TX_RETENTION_BLOCKS;
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unsigned int fKeepLastNTransactions = DEFAULT_TX_RETENTION_LASTTX;
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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(1000);
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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 JSOutPoint::ToString() const
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{
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return strprintf("JSOutPoint(%s, %d, %d)", hash.ToString().substr(0,10), js, n);
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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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// Generate a new Sapling spending key and return its public payment address
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SaplingPaymentAddress CWallet::GenerateNewSaplingZKey(bool addToWallet)
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{
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AssertLockHeld(cs_wallet); // mapSaplingZKeyMetadata
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// Create new metadata
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int64_t nCreationTime = GetTime();
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CKeyMetadata metadata(nCreationTime);
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// Try to get the seed
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HDSeed seed;
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if (!GetHDSeed(seed))
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throw std::runtime_error("CWallet::GenerateNewSaplingZKey(): HD seed not found");
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auto m = libzcash::SaplingExtendedSpendingKey::Master(seed);
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uint32_t bip44CoinType = Params().BIP44CoinType();
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// We use a fixed keypath scheme of m/32'/coin_type'/account'
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// Derive m/32'
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auto m_32h = m.Derive(32 | ZIP32_HARDENED_KEY_LIMIT);
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// Derive m/32'/coin_type'
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auto m_32h_cth = m_32h.Derive(bip44CoinType | ZIP32_HARDENED_KEY_LIMIT);
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// Derive account key at next index, skip keys already known to the wallet
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libzcash::SaplingExtendedSpendingKey xsk;
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do
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{
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xsk = m_32h_cth.Derive(hdChain.saplingAccountCounter | ZIP32_HARDENED_KEY_LIMIT);
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metadata.hdKeypath = "m/32'/" + std::to_string(bip44CoinType) + "'/" + std::to_string(hdChain.saplingAccountCounter) + "'";
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metadata.seedFp = hdChain.seedFp;
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// Increment childkey index
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hdChain.saplingAccountCounter++;
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} while (HaveSaplingSpendingKey(xsk.expsk.full_viewing_key()));
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// Update the chain model in the database
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if (fFileBacked && !CWalletDB(strWalletFile).WriteHDChain(hdChain))
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throw std::runtime_error("CWallet::GenerateNewSaplingZKey(): Writing HD chain model failed");
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auto ivk = xsk.expsk.full_viewing_key().in_viewing_key();
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mapSaplingZKeyMetadata[ivk] = metadata;
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auto addr = xsk.DefaultAddress();
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if (addToWallet && !AddSaplingZKey(xsk, addr)) {
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throw std::runtime_error("CWallet::GenerateNewSaplingZKey(): AddSaplingZKey failed");
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}
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// return default sapling payment address.
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return addr;
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}
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// Add spending key to keystore
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bool CWallet::AddSaplingZKey(
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const libzcash::SaplingExtendedSpendingKey &sk,
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const libzcash::SaplingPaymentAddress &defaultAddr)
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{
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AssertLockHeld(cs_wallet); // mapSaplingZKeyMetadata
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if (!CCryptoKeyStore::AddSaplingSpendingKey(sk, defaultAddr)) {
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return false;
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}
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nTimeFirstKey = 1; // No birthday information for viewing keys.
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if (!fFileBacked) {
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return true;
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}
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if (!IsCrypted()) {
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auto ivk = sk.expsk.full_viewing_key().in_viewing_key();
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return CWalletDB(strWalletFile).WriteSaplingZKey(ivk, sk, mapSaplingZKeyMetadata[ivk]);
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}
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return true;
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}
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// Add payment address -> incoming viewing key map entry
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bool CWallet::AddSaplingIncomingViewingKey(
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const libzcash::SaplingIncomingViewingKey &ivk,
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const libzcash::SaplingPaymentAddress &addr)
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{
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AssertLockHeld(cs_wallet); // mapSaplingZKeyMetadata
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if (!CCryptoKeyStore::AddSaplingIncomingViewingKey(ivk, addr)) {
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return false;
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}
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if (!fFileBacked) {
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return true;
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}
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if (!IsCrypted()) {
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return CWalletDB(strWalletFile).WriteSaplingPaymentAddress(addr, ivk);
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}
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return true;
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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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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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assert(secret.VerifyPubKey(pubkey));
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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::AddCryptedSaplingSpendingKey(const libzcash::SaplingExtendedFullViewingKey &extfvk,
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const std::vector<unsigned char> &vchCryptedSecret,
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const libzcash::SaplingPaymentAddress &defaultAddr)
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{
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if (!CCryptoKeyStore::AddCryptedSaplingSpendingKey(extfvk, vchCryptedSecret, defaultAddr))
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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->WriteCryptedSaplingZKey(extfvk,
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vchCryptedSecret,
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mapSaplingZKeyMetadata[extfvk.fvk.in_viewing_key()]);
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} else {
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return CWalletDB(strWalletFile).WriteCryptedSaplingZKey(extfvk,
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vchCryptedSecret,
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mapSaplingZKeyMetadata[extfvk.fvk.in_viewing_key()]);
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}
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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::LoadCryptedSaplingZKey(
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const libzcash::SaplingExtendedFullViewingKey &extfvk,
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const std::vector<unsigned char> &vchCryptedSecret)
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{
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return CCryptoKeyStore::AddCryptedSaplingSpendingKey(extfvk, vchCryptedSecret, extfvk.DefaultAddress());
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}
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bool CWallet::LoadSaplingZKeyMetadata(const libzcash::SaplingIncomingViewingKey &ivk, const CKeyMetadata &meta)
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{
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AssertLockHeld(cs_wallet); // mapSaplingZKeyMetadata
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mapSaplingZKeyMetadata[ivk] = meta;
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return true;
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}
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bool CWallet::LoadSaplingZKey(const libzcash::SaplingExtendedSpendingKey &key)
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{
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return CCryptoKeyStore::AddSaplingSpendingKey(key, key.DefaultAddress());
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}
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bool CWallet::LoadSaplingPaymentAddress(
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const libzcash::SaplingPaymentAddress &addr,
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const libzcash::SaplingIncomingViewingKey &ivk)
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{
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return CCryptoKeyStore::AddSaplingIncomingViewingKey(ivk, addr);
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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 = EncodeDestination(CScriptID(redeemScript));
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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::ChainTip(const CBlockIndex *pindex,
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const CBlock *pblock,
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boost::optional<std::pair<SproutMerkleTree, SaplingMerkleTree>> added)
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
if (added) {
|
|
bool initialDownloadCheck = IsInitialBlockDownload();
|
|
// Prevent witness cache building && consolidation transactions
|
|
// from being created when node is syncing after launch,
|
|
// and also when node wakes up from suspension/hibernation and incoming blocks are old.
|
|
// 144 blocks = 3hrs @ 75s blocktime
|
|
if (!initialDownloadCheck &&
|
|
pblock->GetBlockTime() > GetTime() - 144*ASSETCHAINS_BLOCKTIME)
|
|
{
|
|
BuildWitnessCache(pindex, false);
|
|
if (fSaplingConsolidationEnabled) {
|
|
RunSaplingConsolidation(pindex->GetHeight());
|
|
}
|
|
if (fSweepEnabled) {
|
|
RunSaplingSweep(pindex->GetHeight());
|
|
}
|
|
if (fTxDeleteEnabled) {
|
|
DeleteWalletTransactions(pindex);
|
|
}
|
|
} else {
|
|
//Build initial witnesses on every block
|
|
BuildWitnessCache(pindex, true);
|
|
if (fTxDeleteEnabled) {
|
|
if (initialDownloadCheck && pindex->GetHeight() % fDeleteInterval == 0) {
|
|
DeleteWalletTransactions(pindex);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
DecrementNoteWitnesses(pindex);
|
|
UpdateNullifierNoteMapForBlock(pblock);
|
|
}
|
|
|
|
// SetBestChain() can be expensive for large wallets, so do only
|
|
// this sometimes; the wallet state will be brought up to date
|
|
// during rescanning on startup.
|
|
int64_t nNow = GetTimeMicros();
|
|
if (nLastSetChain == 0) {
|
|
// Don't flush during startup.
|
|
nLastSetChain = nNow;
|
|
}
|
|
// TODO: SetBestChain if DeleteWalletTransactions deletes txs
|
|
if (++nSetChainUpdates >= WITNESS_WRITE_UPDATES || nLastSetChain + (int64_t)WITNESS_WRITE_INTERVAL * 1000000 < nNow) {
|
|
nLastSetChain = nNow;
|
|
nSetChainUpdates = 0;
|
|
// The locator must be derived from the pindex used to increment
|
|
// the witnesses above; pindex can be behind chainActive.Tip().
|
|
CBlockLocator loc = chainActive.GetLocator(pindex);
|
|
SetBestChain(loc);
|
|
LogPrintf("%s: wrote bestchain to wallet at height=%d\n", __func__, pindex->GetHeight() );
|
|
}
|
|
}
|
|
|
|
void CWallet::RunSaplingSweep(int blockHeight) {
|
|
AssertLockHeld(cs_wallet);
|
|
if (!fSweepEnabled) {
|
|
return;
|
|
}
|
|
|
|
if (nextSweep > blockHeight) {
|
|
LogPrintf("%s: Not time to sweep yet at blockHeight=%d nextSweep=%d\n", __func__, blockHeight, nextSweep);
|
|
return;
|
|
}
|
|
LogPrintf("%s: Sweep enabled at blockHeight=%d nextSweep=%d\n", __func__, blockHeight, nextSweep);
|
|
|
|
//Don't Run if consolidation will run soon.
|
|
if (fSaplingConsolidationEnabled && nextConsolidation - 5 <= blockHeight) {
|
|
LogPrintf("%s: not sweeping since next consolidation is within 5 blocks, nextConsolidation=%d , blockHeight=%d\n", __func__, nextConsolidation, blockHeight);
|
|
return;
|
|
}
|
|
|
|
//Don't Run While consolidation is running.
|
|
if (fConsolidationRunning) {
|
|
LogPrintf("%s: not sweeping since consolidation is currently running at height=%d\n", __func__, blockHeight);
|
|
return;
|
|
}
|
|
|
|
fSweepRunning = true;
|
|
|
|
std::shared_ptr<AsyncRPCQueue> q = getAsyncRPCQueue();
|
|
std::shared_ptr<AsyncRPCOperation> lastOperation = q->getOperationForId(saplingSweepOperationId);
|
|
if (lastOperation != nullptr) {
|
|
lastOperation->cancel();
|
|
}
|
|
pendingSaplingSweepTxs.clear();
|
|
std::shared_ptr<AsyncRPCOperation> operation(new AsyncRPCOperation_sweep(blockHeight + 5));
|
|
saplingSweepOperationId = operation->getId();
|
|
q->addOperation(operation);
|
|
}
|
|
|
|
void CWallet::RunSaplingConsolidation(int blockHeight) {
|
|
AssertLockHeld(cs_wallet);
|
|
|
|
if (!fSaplingConsolidationEnabled) {
|
|
return;
|
|
}
|
|
|
|
if (nextConsolidation > blockHeight) {
|
|
LogPrintf("%s: Not time to consolidate yet at blockHeight=%d nextConsolidation=%d\n", __func__, blockHeight, nextConsolidation);
|
|
return;
|
|
}
|
|
|
|
LogPrintf("%s: consolidation enabled at blockHeight=%d fSweepRunning=%d\n", __func__, blockHeight, fSweepRunning );
|
|
|
|
if (fSweepRunning) {
|
|
LogPrintf("%s: not consolidating since sweep is currently running at height=%d\n", __func__, blockHeight);
|
|
return;
|
|
}
|
|
|
|
LogPrintf("%s: creating consolidation operation at blockHeight=%d\n", __func__, blockHeight);
|
|
std::shared_ptr<AsyncRPCQueue> q = getAsyncRPCQueue();
|
|
std::shared_ptr<AsyncRPCOperation> lastOperation = q->getOperationForId(saplingConsolidationOperationId);
|
|
if (lastOperation != nullptr) {
|
|
lastOperation->cancel();
|
|
}
|
|
pendingSaplingConsolidationTxs.clear();
|
|
std::shared_ptr<AsyncRPCOperation> operation(new AsyncRPCOperation_saplingconsolidation(blockHeight + 5));
|
|
saplingConsolidationOperationId = operation->getId();
|
|
q->addOperation(operation);
|
|
}
|
|
|
|
bool CWallet::CommitAutomatedTx(const CTransaction& tx) {
|
|
CWalletTx wtx(this, tx);
|
|
CReserveKey reservekey(pwalletMain);
|
|
fprintf(stderr,"%s: %s\n",__func__,tx.ToString().c_str());
|
|
return CommitTransaction(wtx, reservekey);
|
|
}
|
|
|
|
void CWallet::SetBestChain(const CBlockLocator& loc)
|
|
{
|
|
AssertLockHeld(cs_wallet);
|
|
CWalletDB walletdb(strWalletFile);
|
|
SetBestChainINTERNAL(walletdb, loc);
|
|
}
|
|
|
|
std::set<std::pair<libzcash::PaymentAddress, uint256>> CWallet::GetNullifiersForAddresses(
|
|
const std::set<libzcash::PaymentAddress> & addresses)
|
|
{
|
|
std::set<std::pair<libzcash::PaymentAddress, uint256>> nullifierSet;
|
|
// Sapling ivk -> list of addrs map
|
|
// (There may be more than one diversified address for a given ivk.)
|
|
std::map<libzcash::SaplingIncomingViewingKey, std::vector<libzcash::SaplingPaymentAddress>> ivkMap;
|
|
for (const auto & addr : addresses) {
|
|
auto saplingAddr = boost::get<libzcash::SaplingPaymentAddress>(&addr);
|
|
if (saplingAddr != nullptr) {
|
|
libzcash::SaplingIncomingViewingKey ivk;
|
|
this->GetSaplingIncomingViewingKey(*saplingAddr, ivk);
|
|
ivkMap[ivk].push_back(*saplingAddr);
|
|
}
|
|
}
|
|
for (const auto & txPair : mapWallet) {
|
|
// Sapling
|
|
for (const auto & noteDataPair : txPair.second.mapSaplingNoteData) {
|
|
auto & noteData = noteDataPair.second;
|
|
auto & nullifier = noteData.nullifier;
|
|
auto & ivk = noteData.ivk;
|
|
if (nullifier && ivkMap.count(ivk)) {
|
|
for (const auto & addr : ivkMap[ivk]) {
|
|
nullifierSet.insert(std::make_pair(addr, nullifier.get()));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return nullifierSet;
|
|
}
|
|
|
|
|
|
bool CWallet::IsNoteSaplingChange(const std::set<std::pair<libzcash::PaymentAddress, uint256>> & nullifierSet,
|
|
const libzcash::PaymentAddress & address,
|
|
const SaplingOutPoint & op)
|
|
{
|
|
// A Note is marked as "change" if the address that received it
|
|
// also spent Notes in the same transaction. This will catch,
|
|
// for instance:
|
|
// - Change created by spending fractions of Notes (because
|
|
// z_sendmany sends change to the originating z-address).
|
|
// - Notes created by consolidation transactions (e.g. using
|
|
// z_mergetoaddress).
|
|
// - Notes sent from one address to itself.
|
|
for (const SpendDescription &spend : mapWallet[op.hash].vShieldedSpend) {
|
|
if (nullifierSet.count(std::make_pair(address, spend.nullifier))) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool CWallet::SetMinVersion(enum WalletFeature nVersion, CWalletDB* pwalletdbIn, bool fExplicit)
|
|
{
|
|
LOCK(cs_wallet); // nWalletVersion
|
|
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)
|
|
{
|
|
LOCK(cs_wallet); // nWalletVersion, nWalletMaxVersion
|
|
// cannot downgrade below current version
|
|
if (nWalletVersion > nVersion)
|
|
return false;
|
|
|
|
nWalletMaxVersion = nVersion;
|
|
|
|
return true;
|
|
}
|
|
|
|
set<uint256> CWallet::GetConflicts(const uint256& txid) const
|
|
{
|
|
set<uint256> result;
|
|
AssertLockHeld(cs_wallet);
|
|
|
|
std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(txid);
|
|
if (it == mapWallet.end())
|
|
return result;
|
|
const CWalletTx& wtx = it->second;
|
|
|
|
std::pair<TxSpends::const_iterator, TxSpends::const_iterator> range;
|
|
|
|
BOOST_FOREACH(const CTxIn& txin, wtx.vin)
|
|
{
|
|
if (mapTxSpends.count(txin.prevout) <= 1)
|
|
continue; // No conflict if zero or one spends
|
|
range = mapTxSpends.equal_range(txin.prevout);
|
|
for (TxSpends::const_iterator it = range.first; it != range.second; ++it)
|
|
result.insert(it->second);
|
|
}
|
|
|
|
std::pair<TxNullifiers::const_iterator, TxNullifiers::const_iterator> range_o;
|
|
|
|
for (const SpendDescription &spend : wtx.vShieldedSpend) {
|
|
uint256 nullifier = spend.nullifier;
|
|
if (mapTxSaplingNullifiers.count(nullifier) <= 1) {
|
|
continue; // No conflict if zero or one spends
|
|
}
|
|
range_o = mapTxSaplingNullifiers.equal_range(nullifier);
|
|
for (TxNullifiers::const_iterator it = range_o.first; it != range_o.second; ++it) {
|
|
result.insert(it->second);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void CWallet::Flush(bool shutdown)
|
|
{
|
|
bitdb.Flush(shutdown);
|
|
}
|
|
|
|
bool CWallet::Verify(const string& walletFile, string& warningString, string& errorString)
|
|
{
|
|
LogPrintf("Using wallet %s\n", walletFile);
|
|
uiInterface.InitMessage(_("Verifying wallet..."));
|
|
|
|
if (walletFile != boost::filesystem::basename(walletFile) + boost::filesystem::extension(walletFile)) {
|
|
boost::filesystem::path path(walletFile);
|
|
if (path.is_absolute()) {
|
|
if (!boost::filesystem::exists(path.parent_path())) {
|
|
LogPrintf("Absolute path %s does not exist!", walletFile);
|
|
return false;
|
|
}
|
|
} else {
|
|
boost::filesystem::path full_path = GetDataDir() / path;
|
|
if (!boost::filesystem::exists(full_path.parent_path())) {
|
|
LogPrintf("Relative path %s does not exist!", walletFile);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!bitdb.Open(GetDataDir()))
|
|
{
|
|
// try moving the database env out of the way
|
|
boost::filesystem::path pathDatabase = GetDataDir() / "database";
|
|
boost::filesystem::path pathDatabaseBak = GetDataDir() / strprintf("database.%d.bak", GetTime());
|
|
try {
|
|
boost::filesystem::rename(pathDatabase, pathDatabaseBak);
|
|
LogPrintf("Moved old %s to %s. Retrying.\n", pathDatabase.string(), pathDatabaseBak.string());
|
|
} catch (const boost::filesystem::filesystem_error&) {
|
|
// failure is ok (well, not really, but it's not worse than what we started with)
|
|
}
|
|
|
|
// try again
|
|
if (!bitdb.Open(GetDataDir())) {
|
|
// if it still fails, it probably means we can't even create the database env
|
|
string msg = strprintf(_("Error initializing wallet database environment %s!"), GetDataDir());
|
|
errorString += msg;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (GetBoolArg("-salvagewallet", false))
|
|
{
|
|
// Recover readable keypairs:
|
|
if (!CWalletDB::Recover(bitdb, walletFile, true))
|
|
return false;
|
|
}
|
|
|
|
if (boost::filesystem::exists(GetDataDir() / walletFile))
|
|
{
|
|
CDBEnv::VerifyResult r = bitdb.Verify(walletFile, CWalletDB::Recover);
|
|
if (r == CDBEnv::RECOVER_OK)
|
|
{
|
|
warningString += strprintf(_("Warning: wallet.dat corrupt, data salvaged!"
|
|
" Original wallet.dat saved as wallet.{timestamp}.bak in %s; if"
|
|
" your balance or transactions are incorrect you should"
|
|
" restore from a backup."), GetDataDir());
|
|
}
|
|
if (r == CDBEnv::RECOVER_FAIL)
|
|
errorString += _("wallet.dat corrupt, salvage failed");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
template <class T>
|
|
void CWallet::SyncMetaData(pair<typename TxSpendMap<T>::iterator, typename TxSpendMap<T>::iterator> range)
|
|
{
|
|
// We want all the wallet transactions in range to have the same metadata as
|
|
// the oldest (smallest nOrderPos).
|
|
// So: find smallest nOrderPos:
|
|
|
|
int nMinOrderPos = std::numeric_limits<int>::max();
|
|
const CWalletTx* copyFrom = NULL;
|
|
for (typename TxSpendMap<T>::iterator it = range.first; it != range.second; ++it)
|
|
{
|
|
const uint256& hash = it->second;
|
|
int n = mapWallet[hash].nOrderPos;
|
|
if (n < nMinOrderPos)
|
|
{
|
|
nMinOrderPos = n;
|
|
copyFrom = &mapWallet[hash];
|
|
}
|
|
}
|
|
// Now copy data from copyFrom to rest:
|
|
for (typename TxSpendMap<T>::iterator it = range.first; it != range.second; ++it)
|
|
{
|
|
const uint256& hash = it->second;
|
|
CWalletTx* copyTo = &mapWallet[hash];
|
|
if (copyFrom == copyTo) continue;
|
|
copyTo->mapValue = copyFrom->mapValue;
|
|
// mapSproutNoteData and mapSaplingNoteData not copied on purpose
|
|
// (it is always set correctly for each CWalletTx)
|
|
copyTo->vOrderForm = copyFrom->vOrderForm;
|
|
// fTimeReceivedIsTxTime not copied on purpose
|
|
// nTimeReceived not copied on purpose
|
|
copyTo->nTimeSmart = copyFrom->nTimeSmart;
|
|
copyTo->fFromMe = copyFrom->fFromMe;
|
|
copyTo->strFromAccount = copyFrom->strFromAccount;
|
|
// nOrderPos not copied on purpose
|
|
// cached members not copied on purpose
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Outpoint is spent if any non-conflicted transaction
|
|
* spends it:
|
|
*/
|
|
bool CWallet::IsSpent(const uint256& hash, unsigned int n) const
|
|
{
|
|
const COutPoint outpoint(hash, n);
|
|
pair<TxSpends::const_iterator, TxSpends::const_iterator> range;
|
|
range = mapTxSpends.equal_range(outpoint);
|
|
|
|
for (TxSpends::const_iterator it = range.first; it != range.second; ++it)
|
|
{
|
|
const uint256& wtxid = it->second;
|
|
std::map<uint256, CWalletTx>::const_iterator mit = mapWallet.find(wtxid);
|
|
if (mit != mapWallet.end() && mit->second.GetDepthInMainChain() >= 0)
|
|
return true; // Spent
|
|
}
|
|
return false;
|
|
}
|
|
|
|
unsigned int CWallet::GetSpendDepth(const uint256& hash, unsigned int n) const
|
|
{
|
|
const COutPoint outpoint(hash, n);
|
|
pair<TxSpends::const_iterator, TxSpends::const_iterator> range;
|
|
range = mapTxSpends.equal_range(outpoint);
|
|
|
|
for (TxSpends::const_iterator it = range.first; it != range.second; ++it)
|
|
{
|
|
const uint256& wtxid = it->second;
|
|
std::map<uint256, CWalletTx>::const_iterator mit = mapWallet.find(wtxid);
|
|
if (mit != mapWallet.end() && mit->second.GetDepthInMainChain() >= 0)
|
|
return mit->second.GetDepthInMainChain(); // Spent
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
bool CWallet::IsSaplingSpent(const uint256& nullifier) const {
|
|
pair<TxNullifiers::const_iterator, TxNullifiers::const_iterator> range;
|
|
range = mapTxSaplingNullifiers.equal_range(nullifier);
|
|
|
|
for (TxNullifiers::const_iterator it = range.first; it != range.second; ++it) {
|
|
const uint256& wtxid = it->second;
|
|
std::map<uint256, CWalletTx>::const_iterator mit = mapWallet.find(wtxid);
|
|
if (mit != mapWallet.end() && mit->second.GetDepthInMainChain() >= 0) {
|
|
return true; // Spent
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
unsigned int CWallet::GetSaplingSpendDepth(const uint256& nullifier) const {
|
|
pair<TxNullifiers::const_iterator, TxNullifiers::const_iterator> range;
|
|
range = mapTxSaplingNullifiers.equal_range(nullifier);
|
|
|
|
for (TxNullifiers::const_iterator it = range.first; it != range.second; ++it) {
|
|
const uint256& wtxid = it->second;
|
|
std::map<uint256, CWalletTx>::const_iterator mit = mapWallet.find(wtxid);
|
|
if (mit != mapWallet.end() && mit->second.GetDepthInMainChain() >= 0) {
|
|
return mit->second.GetDepthInMainChain(); // Spent
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void CWallet::AddToTransparentSpends(const COutPoint& outpoint, const uint256& wtxid)
|
|
{
|
|
mapTxSpends.insert(make_pair(outpoint, wtxid));
|
|
|
|
pair<TxSpends::iterator, TxSpends::iterator> range;
|
|
range = mapTxSpends.equal_range(outpoint);
|
|
SyncMetaData<COutPoint>(range);
|
|
}
|
|
|
|
void CWallet::AddToSaplingSpends(const uint256& nullifier, const uint256& wtxid)
|
|
{
|
|
mapTxSaplingNullifiers.insert(make_pair(nullifier, wtxid));
|
|
|
|
pair<TxNullifiers::iterator, TxNullifiers::iterator> range;
|
|
range = mapTxSaplingNullifiers.equal_range(nullifier);
|
|
SyncMetaData<uint256>(range);
|
|
}
|
|
|
|
void CWallet::AddToSpends(const uint256& wtxid)
|
|
{
|
|
assert(mapWallet.count(wtxid));
|
|
CWalletTx& thisTx = mapWallet[wtxid];
|
|
if (thisTx.IsCoinBase()) // Coinbases don't spend anything!
|
|
return;
|
|
|
|
for (const CTxIn& txin : thisTx.vin) {
|
|
AddToTransparentSpends(txin.prevout, wtxid);
|
|
}
|
|
for (const SpendDescription &spend : thisTx.vShieldedSpend) {
|
|
AddToSaplingSpends(spend.nullifier, wtxid);
|
|
}
|
|
}
|
|
|
|
std::set<uint256> CWallet::GetNullifiers()
|
|
{
|
|
std::set<uint256> nullifierSet;
|
|
for (const auto & txPair : mapWallet) {
|
|
// Sapling
|
|
for (const auto & noteDataPair : txPair.second.mapSaplingNoteData) {
|
|
auto & noteData = noteDataPair.second;
|
|
auto & nullifier = noteData.nullifier;
|
|
if (nullifier) {
|
|
nullifierSet.insert(nullifier.get());
|
|
}
|
|
}
|
|
}
|
|
return nullifierSet;
|
|
}
|
|
|
|
int64_t CWallet::NullifierCount()
|
|
{
|
|
LOCK(cs_wallet);
|
|
if(fZdebug) {
|
|
//fprintf(stderr,"%s:mapTxSaplingNullifers.size=%d\n",__FUNCTION__,(int)mapTxSaplingNullifiers.size() );
|
|
//fprintf(stderr,"%s:mempool.getNullifiers.size=%d\n",__FUNCTION__,(int)mempool.getNullifiers().size() );
|
|
//fprintf(stderr,"%s:cacheSaplingNullifiers.size=%d\n",__FUNCTION__,(int)pcoinsTip->getNullifiers().size() );
|
|
}
|
|
return pcoinsTip->getNullifiers().size();
|
|
}
|
|
|
|
|
|
void CWallet::ClearNoteWitnessCache()
|
|
{
|
|
LOCK(cs_wallet);
|
|
int notes = 0;
|
|
for (std::pair<const uint256, CWalletTx>& wtxItem : mapWallet) {
|
|
for (mapSaplingNoteData_t::value_type& item : wtxItem.second.mapSaplingNoteData) {
|
|
item.second.witnesses.clear();
|
|
item.second.witnessHeight = -1;
|
|
notes++;
|
|
}
|
|
}
|
|
LogPrintf("%s: Cleared witness data from %d wallet items and %d SaplingNotes\n", __func__, mapWallet.size(), notes);
|
|
}
|
|
|
|
void CWallet::DecrementNoteWitnesses(const CBlockIndex* pindex)
|
|
{
|
|
AssertLockHeld(cs_wallet);
|
|
|
|
extern int32_t HUSH_REWIND;
|
|
|
|
for (std::pair<const uint256, CWalletTx>& wtxItem : mapWallet) {
|
|
//Sapling
|
|
for (auto& item : wtxItem.second.mapSaplingNoteData) {
|
|
auto* nd = &(item.second);
|
|
if (nd->nullifier && pwalletMain->GetSaplingSpendDepth(*item.second.nullifier) <= WITNESS_CACHE_SIZE) {
|
|
// Only decrement witnesses that are not above the current height
|
|
if (nd->witnessHeight <= pindex->GetHeight()) {
|
|
if (nd->witnesses.size() > 1) {
|
|
// indexHeight is the height of the block being removed, so
|
|
// the new witness cache height is one below it.
|
|
nd->witnesses.pop_front();
|
|
nd->witnessHeight = pindex->GetHeight() - 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
assert(HUSH_REWIND != 0 || WITNESS_CACHE_SIZE != _COINBASE_MATURITY+10);
|
|
}
|
|
|
|
template<typename NoteData>
|
|
void ClearSingleNoteWitnessCache(NoteData* nd)
|
|
{
|
|
nd->witnesses.clear();
|
|
nd->witnessHeight = -1;
|
|
nd->witnessRootValidated = false;
|
|
}
|
|
|
|
int CWallet::SaplingWitnessMinimumHeight(const uint256& nullifier, int nWitnessHeight, int nMinimumHeight)
|
|
{
|
|
if (GetSaplingSpendDepth(nullifier) <= WITNESS_CACHE_SIZE) {
|
|
nMinimumHeight = min(nWitnessHeight, nMinimumHeight);
|
|
}
|
|
return nMinimumHeight;
|
|
}
|
|
|
|
int CWallet::VerifyAndSetInitialWitness(const CBlockIndex* pindex, bool witnessOnly)
|
|
{
|
|
AssertLockHeld(cs_main);
|
|
AssertLockHeld(cs_wallet);
|
|
|
|
int nWitnessTxIncrement = 0;
|
|
int nWitnessTotalTxCount = mapWallet.size();
|
|
int nMinimumHeight = pindex->GetHeight();
|
|
|
|
for (std::pair<const uint256, CWalletTx>& wtxItem : mapWallet) {
|
|
nWitnessTxIncrement += 1;
|
|
|
|
if (wtxItem.second.mapSaplingNoteData.empty())
|
|
continue;
|
|
|
|
if (wtxItem.second.GetDepthInMainChain() > 0) {
|
|
auto wtxHash = wtxItem.second.GetHash();
|
|
int wtxHeight = mapBlockIndex[wtxItem.second.hashBlock]->GetHeight();
|
|
|
|
for (mapSaplingNoteData_t::value_type& item : wtxItem.second.mapSaplingNoteData) {
|
|
|
|
auto op = item.first;
|
|
auto* nd = &(item.second);
|
|
CBlockIndex* pblockindex;
|
|
uint256 blockRoot;
|
|
uint256 witnessRoot;
|
|
|
|
if (!nd->nullifier)
|
|
::ClearSingleNoteWitnessCache(nd);
|
|
|
|
if (!nd->witnesses.empty() && nd->witnessHeight > 0) {
|
|
|
|
//Skip all functions for validated witness while witness only = true
|
|
if (nd->witnessRootValidated && witnessOnly)
|
|
continue;
|
|
|
|
//Skip Validation when witness root has been validated
|
|
if (nd->witnessRootValidated) {
|
|
nMinimumHeight = SaplingWitnessMinimumHeight(*item.second.nullifier, nd->witnessHeight, nMinimumHeight);
|
|
continue;
|
|
}
|
|
|
|
//Skip Validation when witness height is greater that block height
|
|
if (nd->witnessHeight > pindex->GetHeight() - 1) {
|
|
nMinimumHeight = SaplingWitnessMinimumHeight(*item.second.nullifier, nd->witnessHeight, nMinimumHeight);
|
|
continue;
|
|
}
|
|
|
|
//Validate the witness at the witness height
|
|
witnessRoot = nd->witnesses.front().root();
|
|
pblockindex = chainActive[nd->witnessHeight];
|
|
blockRoot = pblockindex->hashFinalSaplingRoot;
|
|
if (witnessRoot == blockRoot) {
|
|
nd->witnessRootValidated = true;
|
|
nMinimumHeight = SaplingWitnessMinimumHeight(*item.second.nullifier, nd->witnessHeight, nMinimumHeight);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
//Clear witness Cache for all other scenarios
|
|
pblockindex = chainActive[wtxHeight];
|
|
::ClearSingleNoteWitnessCache(nd);
|
|
|
|
LogPrintf("%s: Setting Initial Sapling Witness for tx %s, %i of %i\n", __func__, wtxHash.ToString(), nWitnessTxIncrement, nWitnessTotalTxCount);
|
|
|
|
SaplingMerkleTree saplingTree;
|
|
blockRoot = pblockindex->pprev->hashFinalSaplingRoot;
|
|
pcoinsTip->GetSaplingAnchorAt(blockRoot, saplingTree);
|
|
|
|
//Cycle through blocks and transactions building sapling tree until the commitment needed is reached
|
|
const CBlock* pblock;
|
|
CBlock block;
|
|
if (!ReadBlockFromDisk(block, pblockindex, 1)) {
|
|
throw std::runtime_error(
|
|
strprintf("Cannot read block height %d (%s) from disk", pindex->GetHeight(), pindex->GetBlockHash().GetHex()));
|
|
}
|
|
pblock = █
|
|
|
|
for (const CTransaction& tx : block.vtx) {
|
|
auto hash = tx.GetHash();
|
|
|
|
// Sapling
|
|
for (uint32_t i = 0; i < tx.vShieldedOutput.size(); i++) {
|
|
const uint256& note_commitment = tx.vShieldedOutput[i].cm;
|
|
|
|
// Increment existing witness until the end of the block
|
|
if (!nd->witnesses.empty()) {
|
|
nd->witnesses.front().append(note_commitment);
|
|
}
|
|
|
|
//Only needed for intial witness
|
|
if (nd->witnesses.empty()) {
|
|
saplingTree.append(note_commitment);
|
|
|
|
// If this is our note, witness it
|
|
if (hash == wtxHash) {
|
|
SaplingOutPoint outPoint {hash, i};
|
|
if (op == outPoint) {
|
|
nd->witnesses.push_front(saplingTree.witness());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
nd->witnessHeight = pblockindex->GetHeight();
|
|
UpdateSaplingNullifierNoteMapWithTx(wtxItem.second);
|
|
nMinimumHeight = SaplingWitnessMinimumHeight(*item.second.nullifier, nd->witnessHeight, nMinimumHeight);
|
|
}
|
|
}
|
|
}
|
|
|
|
if(fZdebug)
|
|
LogPrintf("%s: nMinimumHeight=%d\n",__func__, nMinimumHeight);
|
|
return nMinimumHeight;
|
|
}
|
|
|
|
void CWallet::BuildWitnessCache(const CBlockIndex* pindex, bool witnessOnly)
|
|
{
|
|
AssertLockHeld(cs_main);
|
|
AssertLockHeld(cs_wallet);
|
|
|
|
int startHeight = VerifyAndSetInitialWitness(pindex, witnessOnly) + 1;
|
|
|
|
if (startHeight > pindex->GetHeight() || witnessOnly) {
|
|
return;
|
|
}
|
|
|
|
uint256 saplingRoot;
|
|
CBlockIndex* pblockindex = chainActive[startHeight];
|
|
int height = chainActive.Height();
|
|
if(fZdebug)
|
|
LogPrintf("%s: height=%d, startHeight=%d\n", __func__, height, startHeight);
|
|
|
|
while (pblockindex) {
|
|
if (ShutdownRequested()) {
|
|
LogPrintf("%s: shutdown requested, aborting building witnesses\n", __func__);
|
|
break;
|
|
}
|
|
if(pwalletMain->fAbortRescan) {
|
|
LogPrintf("%s: rescan aborted at block %d, stopping witness building\n", pwalletMain->rescanHeight);
|
|
pwalletMain->fRescanning = false;
|
|
return;
|
|
}
|
|
|
|
if (pblockindex->GetHeight() % 100 == 0 && pblockindex->GetHeight() < height - 5) {
|
|
LogPrintf("Building Witnesses for block %i %.4f complete, %d remaining\n", pblockindex->GetHeight(), pblockindex->GetHeight() / double(height), height - pblockindex->GetHeight() );
|
|
}
|
|
|
|
SaplingMerkleTree saplingTree;
|
|
saplingRoot = pblockindex->pprev->hashFinalSaplingRoot;
|
|
pcoinsTip->GetSaplingAnchorAt(saplingRoot, saplingTree);
|
|
|
|
//Cycle through blocks and transactions building sapling tree until the commitment needed is reached
|
|
CBlock block;
|
|
if (!ReadBlockFromDisk(block, pblockindex, 1)) {
|
|
throw std::runtime_error(
|
|
strprintf("Cannot read block height %d (%s) from disk", pindex->GetHeight(), pindex->GetBlockHash().GetHex()));
|
|
}
|
|
|
|
for (std::pair<const uint256, CWalletTx>& wtxItem : mapWallet) {
|
|
|
|
if (wtxItem.second.mapSaplingNoteData.empty())
|
|
continue;
|
|
|
|
if (wtxItem.second.GetDepthInMainChain() > 0) {
|
|
|
|
//Sapling
|
|
for (mapSaplingNoteData_t::value_type& item : wtxItem.second.mapSaplingNoteData) {
|
|
auto* nd = &(item.second);
|
|
if (nd->nullifier && nd->witnessHeight == pblockindex->GetHeight() - 1
|
|
&& GetSaplingSpendDepth(*item.second.nullifier) <= WITNESS_CACHE_SIZE) {
|
|
|
|
nd->witnesses.push_front(nd->witnesses.front());
|
|
while (nd->witnesses.size() > WITNESS_CACHE_SIZE) {
|
|
nd->witnesses.pop_back();
|
|
}
|
|
|
|
for (const CTransaction& tx : block.vtx) {
|
|
for (uint32_t i = 0; i < tx.vShieldedOutput.size(); i++) {
|
|
const uint256& note_commitment = tx.vShieldedOutput[i].cm;
|
|
nd->witnesses.front().append(note_commitment);
|
|
}
|
|
}
|
|
nd->witnessHeight = pblockindex->GetHeight();
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
if (pblockindex == pindex)
|
|
break;
|
|
|
|
pblockindex = chainActive.Next(pblockindex);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase)
|
|
{
|
|
if (IsCrypted())
|
|
return false;
|
|
|
|
CKeyingMaterial vMasterKey;
|
|
|
|
vMasterKey.resize(WALLET_CRYPTO_KEY_SIZE);
|
|
GetRandBytes(&vMasterKey[0], WALLET_CRYPTO_KEY_SIZE);
|
|
|
|
CMasterKey kMasterKey;
|
|
|
|
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);
|
|
kMasterKey.nDeriveIterations = 2500000 / ((double)(GetTimeMillis() - nStartTime));
|
|
|
|
nStartTime = GetTimeMillis();
|
|
crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod);
|
|
kMasterKey.nDeriveIterations = (kMasterKey.nDeriveIterations + kMasterKey.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime))) / 2;
|
|
|
|
if (kMasterKey.nDeriveIterations < 25000)
|
|
kMasterKey.nDeriveIterations = 25000;
|
|
|
|
LogPrintf("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)
|
|
{
|
|
assert(!pwalletdbEncryption);
|
|
pwalletdbEncryption = new CWalletDB(strWalletFile);
|
|
if (!pwalletdbEncryption->TxnBegin()) {
|
|
delete pwalletdbEncryption;
|
|
pwalletdbEncryption = NULL;
|
|
return false;
|
|
}
|
|
pwalletdbEncryption->WriteMasterKey(nMasterKeyMaxID, kMasterKey);
|
|
}
|
|
|
|
if (!EncryptKeys(vMasterKey))
|
|
{
|
|
if (fFileBacked) {
|
|
pwalletdbEncryption->TxnAbort();
|
|
delete pwalletdbEncryption;
|
|
}
|
|
// We now probably have half of our keys encrypted in memory, and half not...
|
|
// die and let the user reload the unencrypted wallet.
|
|
assert(false);
|
|
}
|
|
|
|
// Encryption was introduced in version 0.4.0
|
|
SetMinVersion(FEATURE_WALLETCRYPT, pwalletdbEncryption, true);
|
|
|
|
if (fFileBacked)
|
|
{
|
|
if (!pwalletdbEncryption->TxnCommit()) {
|
|
delete pwalletdbEncryption;
|
|
// We now have keys encrypted in memory, but not on disk...
|
|
// die to avoid confusion and let the user reload the 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)));
|
|
//fprintf(stderr,"ordered iter.%d %s\n",(int32_t)wtx->nOrderPos,wtx->GetHash().GetHex().c_str());
|
|
}
|
|
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();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Ensure that every note in the wallet (for which we possess a spending key)
|
|
* has a cached nullifier.
|
|
*/
|
|
bool CWallet::UpdateNullifierNoteMap()
|
|
{
|
|
{
|
|
LOCK(cs_wallet);
|
|
|
|
if (IsLocked())
|
|
return false;
|
|
|
|
ZCNoteDecryption dec;
|
|
for (std::pair<const uint256, CWalletTx>& wtxItem : mapWallet) {
|
|
// TODO: Sapling. This method is only called from RPC walletpassphrase, which is currently unsupported
|
|
// as RPC encryptwallet is hidden behind two flags: -developerencryptwallet -experimentalfeatures
|
|
|
|
UpdateNullifierNoteMapWithTx(wtxItem.second);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Update mapSaplingNullifiersToNotes
|
|
* with the cached nullifiers in this tx.
|
|
*/
|
|
void CWallet::UpdateNullifierNoteMapWithTx(const CWalletTx& wtx)
|
|
{
|
|
{
|
|
LOCK(cs_wallet);
|
|
|
|
for (const mapSaplingNoteData_t::value_type& item : wtx.mapSaplingNoteData) {
|
|
if (item.second.nullifier) {
|
|
mapSaplingNullifiersToNotes[*item.second.nullifier] = item.first;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Update mapSaplingNullifiersToNotes, computing the nullifier from a cached witness if necessary.
|
|
*/
|
|
void CWallet::UpdateSaplingNullifierNoteMapWithTx(CWalletTx& wtx) {
|
|
LOCK(cs_wallet);
|
|
|
|
for (mapSaplingNoteData_t::value_type &item : wtx.mapSaplingNoteData) {
|
|
SaplingOutPoint op = item.first;
|
|
SaplingNoteData nd = item.second;
|
|
|
|
if (nd.witnesses.empty()) {
|
|
// If there are no witnesses, erase the nullifier and associated mapping.
|
|
if (item.second.nullifier) {
|
|
mapSaplingNullifiersToNotes.erase(item.second.nullifier.get());
|
|
}
|
|
item.second.nullifier = boost::none;
|
|
}
|
|
else {
|
|
uint64_t position = nd.witnesses.front().position();
|
|
// Skip if we only have incoming viewing key
|
|
if (mapSaplingFullViewingKeys.count(nd.ivk) != 0) {
|
|
SaplingFullViewingKey fvk = mapSaplingFullViewingKeys.at(nd.ivk);
|
|
OutputDescription output = wtx.vShieldedOutput[op.n];
|
|
auto optPlaintext = SaplingNotePlaintext::decrypt(output.encCiphertext, nd.ivk, output.ephemeralKey, output.cm);
|
|
if (!optPlaintext) {
|
|
// An item in mapSaplingNoteData must have already been successfully decrypted,
|
|
// otherwise the item would not exist in the first place.
|
|
assert(false);
|
|
}
|
|
auto optNote = optPlaintext.get().note(nd.ivk);
|
|
if (!optNote) {
|
|
assert(false);
|
|
}
|
|
auto optNullifier = optNote.get().nullifier(fvk, position);
|
|
if (!optNullifier) {
|
|
// This should not happen. If it does, maybe the position has been corrupted or miscalculated?
|
|
assert(false);
|
|
}
|
|
uint256 nullifier = optNullifier.get();
|
|
mapSaplingNullifiersToNotes[nullifier] = op;
|
|
item.second.nullifier = nullifier;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Iterate over transactions in a block and update the cached Sapling nullifiers
|
|
* for transactions which belong to the wallet.
|
|
*/
|
|
void CWallet::UpdateNullifierNoteMapForBlock(const CBlock *pblock) {
|
|
LOCK(cs_wallet);
|
|
|
|
for (const CTransaction& tx : pblock->vtx) {
|
|
auto hash = tx.GetHash();
|
|
bool txIsOurs = mapWallet.count(hash);
|
|
if (txIsOurs) {
|
|
UpdateSaplingNullifierNoteMapWithTx(mapWallet[hash]);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet, CWalletDB* pwalletdb)
|
|
{
|
|
uint256 hash = wtxIn.GetHash();
|
|
|
|
if (fFromLoadWallet)
|
|
{
|
|
mapWallet[hash] = wtxIn;
|
|
mapWallet[hash].BindWallet(this);
|
|
UpdateNullifierNoteMapWithTx(mapWallet[hash]);
|
|
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);
|
|
UpdateNullifierNoteMapWithTx(wtx);
|
|
bool fInsertedNew = ret.second;
|
|
if (fInsertedNew)
|
|
{
|
|
wtx.nTimeReceived = GetTime();
|
|
wtx.nOrderPos = IncOrderPosNext(pwalletdb);
|
|
wtx.nTimeSmart = wtx.nTimeReceived;
|
|
if (!wtxIn.hashBlock.IsNull())
|
|
{
|
|
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.IsNull() && 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 (UpdatedNoteData(wtxIn, wtx)) {
|
|
fUpdated = true;
|
|
}
|
|
if (wtxIn.fFromMe && wtxIn.fFromMe != wtx.fFromMe)
|
|
{
|
|
wtx.fFromMe = wtxIn.fFromMe;
|
|
fUpdated = true;
|
|
}
|
|
}
|
|
|
|
//// debug print
|
|
LogPrintf("AddToWallet %s at height %d %s%s\n", wtxIn.GetHash().ToString(), hush_blockheight(wtxIn.hashBlock), (fInsertedNew ? "new" : ""), (fUpdated ? "update" : ""));
|
|
|
|
// Write to disk
|
|
if (fInsertedNew || fUpdated)
|
|
if (!wtx.WriteToDisk(pwalletdb))
|
|
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;
|
|
}
|
|
|
|
bool CWallet::UpdatedNoteData(const CWalletTx& wtxIn, CWalletTx& wtx)
|
|
{
|
|
bool unchangedSaplingFlag = (wtxIn.mapSaplingNoteData.empty() || wtxIn.mapSaplingNoteData == wtx.mapSaplingNoteData);
|
|
if (!unchangedSaplingFlag) {
|
|
auto tmp = wtxIn.mapSaplingNoteData;
|
|
// Ensure we keep any cached witnesses we may already have
|
|
|
|
for (const std::pair <SaplingOutPoint, SaplingNoteData> nd : wtx.mapSaplingNoteData) {
|
|
if (tmp.count(nd.first) && nd.second.witnesses.size() > 0) {
|
|
tmp.at(nd.first).witnesses.assign(
|
|
nd.second.witnesses.cbegin(), nd.second.witnesses.cend());
|
|
}
|
|
tmp.at(nd.first).witnessHeight = nd.second.witnessHeight;
|
|
}
|
|
|
|
// Now copy over the updated note data
|
|
wtx.mapSaplingNoteData = tmp;
|
|
}
|
|
|
|
return !unchangedSaplingFlag;
|
|
}
|
|
|
|
/**
|
|
* 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)
|
|
{
|
|
if(fDebug)
|
|
fprintf(stderr,"%s: tx=%s\n", __func__, tx.GetHash().ToString().c_str() );
|
|
|
|
{
|
|
AssertLockHeld(cs_wallet);
|
|
if ( tx.IsCoinBase() && tx.vout[0].nValue == 0 )
|
|
return false;
|
|
bool fExisted = mapWallet.count(tx.GetHash()) != 0;
|
|
if (fExisted && !fUpdate) return false;
|
|
auto saplingNoteDataAndAddressesToAdd = FindMySaplingNotes(tx);
|
|
auto saplingNoteData = saplingNoteDataAndAddressesToAdd.first;
|
|
auto addressesToAdd = saplingNoteDataAndAddressesToAdd.second;
|
|
for (const auto &addressToAdd : addressesToAdd) {
|
|
if (!AddSaplingIncomingViewingKey(addressToAdd.second, addressToAdd.first)) {
|
|
return false;
|
|
}
|
|
}
|
|
static std::string NotaryAddress; static bool didinit;
|
|
if ( !didinit && NotaryAddress.empty() && NOTARY_PUBKEY33[0] != 0 ) {
|
|
didinit = true;
|
|
char Raddress[64];
|
|
pubkey2addr((char *)Raddress,(uint8_t *)NOTARY_PUBKEY33);
|
|
NotaryAddress.assign(Raddress);
|
|
vAllowListAddress = mapMultiArgs["-allowlistaddress"];
|
|
if ( !vAllowListAddress.empty() )
|
|
{
|
|
fprintf(stderr, "Activated Wallet Filter \n Notary Address: %s \n Adding allowlist address's:\n", NotaryAddress.c_str());
|
|
for ( auto wladdr : vAllowListAddress )
|
|
fprintf(stderr, " %s\n", wladdr.c_str());
|
|
}
|
|
}
|
|
if (fExisted || IsMine(tx) || IsFromMe(tx) || saplingNoteData.size() > 0) {
|
|
// wallet filter for notary nodes. Enables by setting -allowlistaddress= as startup param or in conf file (works same as -addnode but with taddr)
|
|
if ( !tx.IsCoinBase() && !vAllowListAddress.empty() && !NotaryAddress.empty() ) {
|
|
int numvinIsOurs = 0, numvinIsAllowList = 0;
|
|
for (size_t i = 0; i < tx.vin.size(); i++)
|
|
{
|
|
uint256 hash; CTransaction txin; CTxDestination address;
|
|
if ( myGetTransaction(tx.vin[i].prevout.hash,txin,hash) && ExtractDestination(txin.vout[tx.vin[i].prevout.n].scriptPubKey, address) )
|
|
{
|
|
if ( CBitcoinAddress(address).ToString() == NotaryAddress )
|
|
numvinIsOurs++;
|
|
for ( auto wladdr : vAllowListAddress )
|
|
{
|
|
if ( CBitcoinAddress(address).ToString() == wladdr )
|
|
{
|
|
//fprintf(stderr, "We received from allowlisted address.%s\n", wladdr.c_str());
|
|
numvinIsAllowList++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// Now we know if it was a tx sent to us, by either a allowlisted address, or ourself.
|
|
if ( numvinIsOurs != 0 )
|
|
fprintf(stderr, "We sent from address: %s vins: %d\n",NotaryAddress.c_str(),numvinIsOurs);
|
|
if ( numvinIsOurs == 0 && numvinIsAllowList == 0 )
|
|
return false;
|
|
}
|
|
|
|
CWalletTx wtx(this,tx);
|
|
|
|
if (saplingNoteData.size() > 0) {
|
|
wtx.SetSaplingNoteData(saplingNoteData);
|
|
}
|
|
|
|
// Get merkle branch if transaction was found in a block
|
|
if (pblock)
|
|
wtx.SetMerkleBranch(*pblock);
|
|
|
|
// Do not flush the wallet here for performance reasons
|
|
// this is safe, as in case of a crash, we rescan the necessary blocks on startup through our SetBestChain-mechanism
|
|
CWalletDB walletdb(strWalletFile, "r+", false);
|
|
|
|
return AddToWallet(wtx, false, &walletdb);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void CWallet::SyncTransaction(const CTransaction& tx, const CBlock* pblock)
|
|
{
|
|
LOCK(cs_wallet);
|
|
if(fDebug)
|
|
fprintf(stderr,"%s: tx=%s\n", __func__, tx.GetHash().ToString().c_str() );
|
|
if (!AddToWalletIfInvolvingMe(tx, pblock, true))
|
|
return; // Not one of ours
|
|
|
|
MarkAffectedTransactionsDirty(tx);
|
|
}
|
|
|
|
void CWallet::MarkAffectedTransactionsDirty(const CTransaction& tx)
|
|
{
|
|
if(fDebug)
|
|
fprintf(stderr,"%s: tx=%s\n", __func__, tx.GetHash().ToString().c_str() );
|
|
// 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();
|
|
}
|
|
|
|
for (const SpendDescription &spend : tx.vShieldedSpend) {
|
|
uint256 nullifier = spend.nullifier;
|
|
if (mapSaplingNullifiersToNotes.count(nullifier) &&
|
|
mapWallet.count(mapSaplingNullifiersToNotes[nullifier].hash)) {
|
|
mapWallet[mapSaplingNullifiersToNotes[nullifier].hash].MarkDirty();
|
|
}
|
|
}
|
|
if(fDebug)
|
|
fprintf(stderr,"%s: finished marking dirty transactions\n", __func__);
|
|
}
|
|
|
|
void CWallet::EraseFromWallet(const uint256 &hash)
|
|
{
|
|
if (!fFileBacked)
|
|
return;
|
|
{
|
|
LOCK(cs_wallet);
|
|
if (mapWallet.erase(hash))
|
|
CWalletDB(strWalletFile).EraseTx(hash);
|
|
}
|
|
|
|
LogPrintf("%s: erased txid %s\n", __func__, hash.ToString().c_str() );
|
|
|
|
return;
|
|
}
|
|
|
|
void CWallet::RescanWallet()
|
|
{
|
|
if (needsRescan)
|
|
{
|
|
CBlockIndex *start = chainActive.Height() > 0 ? chainActive[1] : NULL;
|
|
if (start)
|
|
ScanForWalletTransactions(start, true);
|
|
needsRescan = false;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Finds all output notes in the given transaction that have been sent to
|
|
* SaplingPaymentAddresses in this wallet.
|
|
*
|
|
* It should never be necessary to call this method with a CWalletTx, because
|
|
* the result of FindMySaplingNotes (for the addresses available at the time) will
|
|
* already have been cached in CWalletTx.mapSaplingNoteData.
|
|
*/
|
|
std::pair<mapSaplingNoteData_t, SaplingIncomingViewingKeyMap> CWallet::FindMySaplingNotes(const CTransaction &tx) const
|
|
{
|
|
// LOCK(cs_SpendingKeyStore);
|
|
LOCK(cs_wallet);
|
|
uint256 hash = tx.GetHash();
|
|
uint32_t nZouts = tx.vShieldedOutput.size();
|
|
if(fDebug && (nZouts > 0)) {
|
|
LogPrintf("%s: zouts=%d in tx=%s\n",__func__,nZouts, hash.ToString().c_str());
|
|
}
|
|
|
|
mapSaplingNoteData_t noteData;
|
|
SaplingIncomingViewingKeyMap viewingKeysToAdd;
|
|
|
|
// Protocol Spec: 4.19 Block Chain Scanning (Sapling)
|
|
for (uint32_t i = 0; i < nZouts; ++i) {
|
|
const OutputDescription output = tx.vShieldedOutput[i];
|
|
bool found = false;
|
|
for (auto it = mapSaplingFullViewingKeys.begin(); it != mapSaplingFullViewingKeys.end(); ++it) {
|
|
SaplingIncomingViewingKey ivk = it->first;
|
|
auto result = SaplingNotePlaintext::decrypt(output.encCiphertext, ivk, output.ephemeralKey, output.cm);
|
|
if (result) {
|
|
auto address = ivk.address(result.get().d);
|
|
if (address && mapSaplingIncomingViewingKeys.count(address.get()) == 0) {
|
|
viewingKeysToAdd[address.get()] = ivk;
|
|
}
|
|
// We don't cache the nullifier here as computing it requires knowledge of the note position
|
|
// in the commitment tree, which can only be determined when the transaction has been mined.
|
|
SaplingOutPoint op {hash, i};
|
|
SaplingNoteData nd;
|
|
nd.ivk = ivk;
|
|
noteData.insert(std::make_pair(op, nd));
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!found) {
|
|
for (auto it = mapSaplingIncomingViewingKeys.begin(); it != mapSaplingIncomingViewingKeys.end(); ++it) {
|
|
SaplingIncomingViewingKey ivk = it-> second;
|
|
auto result = SaplingNotePlaintext::decrypt(output.encCiphertext, ivk, output.ephemeralKey, output.cm);
|
|
if (!result) {
|
|
continue;
|
|
}
|
|
// We don't cache the nullifier here as computing it requires knowledge of the note position
|
|
// in the commitment tree, which can only be determined when the transaction has been mined.
|
|
SaplingOutPoint op {hash, i};
|
|
SaplingNoteData nd;
|
|
nd.ivk = ivk;
|
|
noteData.insert(std::make_pair(op, nd));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return std::make_pair(noteData, viewingKeysToAdd);
|
|
}
|
|
|
|
bool CWallet::IsSaplingNullifierFromMe(const uint256& nullifier) const
|
|
{
|
|
{
|
|
LOCK(cs_wallet);
|
|
if (mapSaplingNullifiersToNotes.count(nullifier) &&
|
|
mapWallet.count(mapSaplingNullifiersToNotes.at(nullifier).hash)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void CWallet::GetSaplingNoteWitnesses(std::vector<SaplingOutPoint> notes,
|
|
std::vector<boost::optional<SaplingWitness>>& witnesses,
|
|
uint256 &final_anchor)
|
|
{
|
|
LOCK(cs_wallet);
|
|
witnesses.resize(notes.size());
|
|
boost::optional<uint256> rt;
|
|
int i = 0;
|
|
for (SaplingOutPoint note : notes) {
|
|
//fprintf(stderr,"%s: i=%d\n", __func__,i);
|
|
auto noteData = mapWallet[note.hash].mapSaplingNoteData;
|
|
auto nWitnesses = noteData[note].witnesses.size();
|
|
if (mapWallet.count(note.hash) && noteData.count(note) && nWitnesses > 0) {
|
|
fprintf(stderr,"%s: Found %lu witnesses for note %s\n", __func__, nWitnesses, note.hash.ToString().c_str() );
|
|
witnesses[i] = noteData[note].witnesses.front();
|
|
if (!rt) {
|
|
//fprintf(stderr,"%s: Setting witness root\n",__func__);
|
|
rt = witnesses[i]->root();
|
|
} else {
|
|
if(*rt == witnesses[i]->root()) {
|
|
//fprintf(stderr,"%s: rt=%s\n",__func__,rt.GetHash().ToString().c_str());
|
|
//fprintf(stderr,"%s: witnesses[%d]->root()=%s\n",__func__,i,witnesses[i]->root().GetHash().ToString().c_str());
|
|
// Something is fucky
|
|
std::string err = string("CWallet::GetSaplingNoteWitnesses: Invalid witness root! rt=") + rt.get().ToString();
|
|
err += string("\n!= witness[i]->root()=") + witnesses[i]->root().ToString();
|
|
//throw std::logic_error(err);
|
|
fprintf(stderr,"%s: IGNORING %s\n", __func__,err.c_str());
|
|
}
|
|
|
|
}
|
|
}
|
|
i++;
|
|
}
|
|
// All returned witnesses have the same anchor
|
|
if (rt) {
|
|
final_anchor = *rt;
|
|
//fprintf(stderr,"%s: final_anchor=%s\n", __func__, rt.get().ToString().c_str() );
|
|
}
|
|
}
|
|
|
|
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(*this, prev.vout[txin.prevout.n].scriptPubKey));
|
|
}
|
|
}
|
|
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(*this, prev.vout[txin.prevout.n].scriptPubKey) & filter)
|
|
return prev.vout[txin.prevout.n].nValue;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
isminetype CWallet::IsMine(const CTxOut& txout) const
|
|
{
|
|
return ::IsMine(*this, txout.scriptPubKey);
|
|
}
|
|
|
|
CAmount 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 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;
|
|
}
|
|
|
|
CAmount 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);
|
|
}
|
|
|
|
typedef vector<unsigned char> valtype;
|
|
unsigned int HaveKeys(const vector<valtype>& pubkeys, const CKeyStore& keystore);
|
|
|
|
bool CWallet::IsMine(const CTransaction& tx)
|
|
{
|
|
for (int i = 0; i < tx.vout.size(); i++)
|
|
{
|
|
if (IsMine(tx, i))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// special case handling for non-standard OP_RETURN script outputs, which need the transaction
|
|
// to determine ownership
|
|
isminetype CWallet::IsMine(const CTransaction& tx, uint32_t voutNum)
|
|
{
|
|
vector<valtype> vSolutions;
|
|
txnouttype whichType;
|
|
const CScript scriptPubKey = CScript(tx.vout[voutNum].scriptPubKey);
|
|
|
|
if (!Solver(scriptPubKey, whichType, vSolutions)) {
|
|
if (this->HaveWatchOnly(scriptPubKey))
|
|
return ISMINE_WATCH_ONLY;
|
|
return ISMINE_NO;
|
|
}
|
|
|
|
CKeyID keyID;
|
|
CScriptID scriptID;
|
|
CScript subscript;
|
|
int voutNext = voutNum + 1;
|
|
|
|
switch (whichType)
|
|
{
|
|
case TX_NONSTANDARD:
|
|
case TX_NULL_DATA:
|
|
break;
|
|
|
|
case TX_CRYPTOCONDITION:
|
|
// for now, default is that the first value returned will be the script, subsequent values will be
|
|
// pubkeys. if we have the first pub key in our wallet, we consider this spendable
|
|
if (vSolutions.size() > 1)
|
|
{
|
|
keyID = CPubKey(vSolutions[1]).GetID();
|
|
if (this->HaveKey(keyID))
|
|
return ISMINE_SPENDABLE;
|
|
}
|
|
break;
|
|
|
|
case TX_PUBKEY:
|
|
keyID = CPubKey(vSolutions[0]).GetID();
|
|
if (this->HaveKey(keyID))
|
|
return ISMINE_SPENDABLE;
|
|
break;
|
|
|
|
case TX_PUBKEYHASH:
|
|
keyID = CKeyID(uint160(vSolutions[0]));
|
|
if (this->HaveKey(keyID))
|
|
return ISMINE_SPENDABLE;
|
|
break;
|
|
|
|
case TX_SCRIPTHASH:
|
|
scriptID = CScriptID(uint160(vSolutions[0]));
|
|
//TODO: remove CLTV stuff not relevant to Hush
|
|
if (this->GetCScript(scriptID, subscript))
|
|
{
|
|
// if this is a CLTV, handle it differently
|
|
if (subscript.IsCheckLockTimeVerify())
|
|
{
|
|
return (::IsMine(*this, subscript));
|
|
}
|
|
else
|
|
{
|
|
isminetype ret = ::IsMine(*this, subscript);
|
|
if (ret == ISMINE_SPENDABLE)
|
|
return ret;
|
|
}
|
|
}
|
|
else if (tx.vout.size() > (voutNext = voutNum + 1) &&
|
|
tx.vout[voutNext].scriptPubKey.size() > 7 &&
|
|
tx.vout[voutNext].scriptPubKey[0] == OP_RETURN)
|
|
{
|
|
// get the opret script from next vout, verify that the front is CLTV and hash matches
|
|
// if so, remove it and use the solver
|
|
opcodetype op;
|
|
std::vector<uint8_t> opretData;
|
|
CScript::const_iterator it = tx.vout[voutNext].scriptPubKey.begin() + 1;
|
|
if (tx.vout[voutNext].scriptPubKey.GetOp2(it, op, &opretData))
|
|
{
|
|
if (opretData.size() > 0 && opretData[0] == OPRETTYPE_TIMELOCK)
|
|
{
|
|
CScript opretScript = CScript(opretData.begin() + 1, opretData.end());
|
|
|
|
if (CScriptID(opretScript) == scriptID &&
|
|
opretScript.IsCheckLockTimeVerify())
|
|
{
|
|
// if we find that this is ours, we need to add this script to the wallet,
|
|
// and we can then recognize this transaction
|
|
isminetype t = ::IsMine(*this, opretScript);
|
|
if (t != ISMINE_NO)
|
|
{
|
|
this->AddCScript(opretScript);
|
|
}
|
|
return t;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case TX_MULTISIG:
|
|
// Only consider transactions "mine" if we own ALL the
|
|
// keys involved. Multi-signature transactions that are
|
|
// partially owned (somebody else has a key that can spend
|
|
// them) enable spend-out-from-under-you attacks, especially
|
|
// in shared-wallet situations.
|
|
vector<valtype> keys(vSolutions.begin()+1, vSolutions.begin()+vSolutions.size()-1);
|
|
if (HaveKeys(keys, *this) == keys.size())
|
|
return ISMINE_SPENDABLE;
|
|
break;
|
|
}
|
|
|
|
if (this->HaveWatchOnly(scriptPubKey))
|
|
return ISMINE_WATCH_ONLY;
|
|
|
|
return ISMINE_NO;
|
|
}
|
|
|
|
bool CWallet::IsFromMe(const CTransaction& tx) const
|
|
{
|
|
if (GetDebit(tx, ISMINE_ALL) > 0) {
|
|
return true;
|
|
}
|
|
for (const SpendDescription &spend : tx.vShieldedSpend) {
|
|
if (IsSaplingNullifierFromMe(spend.nullifier)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
CAmount CWallet::GetDebit(const CTransaction& tx, const isminefilter& filter) const
|
|
{
|
|
CAmount nDebit = 0;
|
|
BOOST_FOREACH(const CTxIn& txin, tx.vin)
|
|
{
|
|
nDebit += GetDebit(txin, filter);
|
|
if (!MoneyRange(nDebit))
|
|
throw std::runtime_error("CWallet::GetDebit(): value out of range");
|
|
}
|
|
return nDebit;
|
|
}
|
|
|
|
CAmount CWallet::GetCredit(const CTransaction& tx, int32_t voutNum, const isminefilter& filter) const
|
|
{
|
|
if (voutNum >= tx.vout.size() || !MoneyRange(tx.vout[voutNum].nValue))
|
|
throw std::runtime_error("CWallet::GetCredit(): value out of range");
|
|
return ((IsMine(tx.vout[voutNum]) & filter) ? tx.vout[voutNum].nValue : 0);
|
|
}
|
|
|
|
CAmount CWallet::GetCredit(const CTransaction& tx, const isminefilter& filter) const
|
|
{
|
|
CAmount nCredit = 0;
|
|
for (int i = 0; i < tx.vout.size(); i++)
|
|
{
|
|
nCredit += GetCredit(tx, i, filter);
|
|
}
|
|
return nCredit;
|
|
}
|
|
|
|
CAmount CWallet::GetChange(const CTransaction& tx) const
|
|
{
|
|
CAmount nChange = 0;
|
|
BOOST_FOREACH(const CTxOut& txout, tx.vout)
|
|
{
|
|
nChange += GetChange(txout);
|
|
if (!MoneyRange(nChange))
|
|
throw std::runtime_error("CWallet::GetChange(): value out of range");
|
|
}
|
|
return nChange;
|
|
}
|
|
|
|
bool CWallet::IsHDFullyEnabled() const
|
|
{
|
|
// Only Sapling addresses are HD for now
|
|
return false;
|
|
}
|
|
|
|
void CWallet::GenerateNewSeed()
|
|
{
|
|
LOCK(cs_wallet);
|
|
|
|
auto seed = HDSeed::Random(HD_WALLET_SEED_LENGTH);
|
|
|
|
int64_t nCreationTime = GetTime();
|
|
|
|
// If the wallet is encrypted and locked, this will fail.
|
|
if (!SetHDSeed(seed))
|
|
throw std::runtime_error(std::string(__func__) + ": SetHDSeed failed");
|
|
|
|
// store the key creation time together with
|
|
// the child index counter in the database
|
|
// as a hdchain object
|
|
CHDChain newHdChain;
|
|
newHdChain.nVersion = CHDChain::VERSION_HD_BASE;
|
|
newHdChain.seedFp = seed.Fingerprint();
|
|
newHdChain.nCreateTime = nCreationTime;
|
|
SetHDChain(newHdChain, false);
|
|
}
|
|
|
|
bool CWallet::SetHDSeed(const HDSeed& seed)
|
|
{
|
|
if (!CCryptoKeyStore::SetHDSeed(seed)) {
|
|
return false;
|
|
}
|
|
|
|
if (!fFileBacked) {
|
|
return true;
|
|
}
|
|
|
|
{
|
|
LOCK(cs_wallet);
|
|
if (!IsCrypted()) {
|
|
return CWalletDB(strWalletFile).WriteHDSeed(seed);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool CWallet::SetCryptedHDSeed(const uint256& seedFp, const std::vector<unsigned char> &vchCryptedSecret)
|
|
{
|
|
if (!CCryptoKeyStore::SetCryptedHDSeed(seedFp, vchCryptedSecret)) {
|
|
return false;
|
|
}
|
|
|
|
if (!fFileBacked) {
|
|
return true;
|
|
}
|
|
|
|
{
|
|
LOCK(cs_wallet);
|
|
if (pwalletdbEncryption)
|
|
return pwalletdbEncryption->WriteCryptedHDSeed(seedFp, vchCryptedSecret);
|
|
else
|
|
return CWalletDB(strWalletFile).WriteCryptedHDSeed(seedFp, vchCryptedSecret);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void CWallet::SetHDChain(const CHDChain& chain, bool memonly)
|
|
{
|
|
LOCK(cs_wallet);
|
|
if (!memonly && fFileBacked && !CWalletDB(strWalletFile).WriteHDChain(chain))
|
|
throw std::runtime_error(std::string(__func__) + ": writing chain failed");
|
|
|
|
hdChain = chain;
|
|
}
|
|
|
|
bool CWallet::LoadHDSeed(const HDSeed& seed)
|
|
{
|
|
return CBasicKeyStore::SetHDSeed(seed);
|
|
}
|
|
|
|
bool CWallet::LoadCryptedHDSeed(const uint256& seedFp, const std::vector<unsigned char>& seed)
|
|
{
|
|
return CCryptoKeyStore::SetCryptedHDSeed(seedFp, seed);
|
|
}
|
|
|
|
void CWalletTx::SetSaplingNoteData(mapSaplingNoteData_t ¬eData)
|
|
{
|
|
mapSaplingNoteData.clear();
|
|
for (const std::pair<SaplingOutPoint, SaplingNoteData> nd : noteData) {
|
|
if (nd.first.n < vShieldedOutput.size()) {
|
|
mapSaplingNoteData[nd.first] = nd.second;
|
|
} else {
|
|
throw std::logic_error("CWalletTx::SetSaplingNoteData(): Invalid note");
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
boost::optional<std::pair<
|
|
SaplingNotePlaintext,
|
|
SaplingPaymentAddress>> CWalletTx::DecryptSaplingNote(SaplingOutPoint op) const
|
|
{
|
|
// Check whether we can decrypt this SaplingOutPoint
|
|
if (this->mapSaplingNoteData.count(op) == 0) {
|
|
return boost::none;
|
|
}
|
|
|
|
auto output = this->vShieldedOutput[op.n];
|
|
auto nd = this->mapSaplingNoteData.at(op);
|
|
|
|
auto maybe_pt = SaplingNotePlaintext::decrypt(
|
|
output.encCiphertext,
|
|
nd.ivk,
|
|
output.ephemeralKey,
|
|
output.cm);
|
|
assert(static_cast<bool>(maybe_pt));
|
|
auto notePt = maybe_pt.get();
|
|
|
|
auto maybe_pa = nd.ivk.address(notePt.d);
|
|
assert(static_cast<bool>(maybe_pa));
|
|
auto pa = maybe_pa.get();
|
|
|
|
return std::make_pair(notePt, pa);
|
|
}
|
|
|
|
boost::optional<std::pair<
|
|
SaplingNotePlaintext,
|
|
SaplingPaymentAddress>> CWalletTx::RecoverSaplingNote(
|
|
SaplingOutPoint op, std::set<uint256>& ovks) const
|
|
{
|
|
auto output = this->vShieldedOutput[op.n];
|
|
|
|
for (auto ovk : ovks) {
|
|
auto outPt = SaplingOutgoingPlaintext::decrypt(
|
|
output.outCiphertext,
|
|
ovk,
|
|
output.cv,
|
|
output.cm,
|
|
output.ephemeralKey);
|
|
if (!outPt) {
|
|
continue;
|
|
}
|
|
|
|
auto maybe_pt = SaplingNotePlaintext::decrypt(
|
|
output.encCiphertext,
|
|
output.ephemeralKey,
|
|
outPt->esk,
|
|
outPt->pk_d,
|
|
output.cm);
|
|
assert(static_cast<bool>(maybe_pt));
|
|
auto notePt = maybe_pt.get();
|
|
|
|
return std::make_pair(notePt, SaplingPaymentAddress(notePt.d, outPt->pk_d));
|
|
}
|
|
|
|
// Couldn't recover with any of the provided OutgoingViewingKeys
|
|
return boost::none;
|
|
}
|
|
|
|
int64_t CWalletTx::GetTxTime() const
|
|
{
|
|
int64_t n = nTimeSmart;
|
|
return n ? n : nTimeReceived;
|
|
}
|
|
|
|
// GetAmounts will determine the transparent debits and credits for a given wallet tx.
|
|
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;
|
|
|
|
// Is this tx sent/signed by me?
|
|
CAmount nDebit = GetDebit(filter);
|
|
bool isFromMyTaddr = nDebit > 0; // debit>0 means we signed/sent this transaction
|
|
|
|
// Compute fee if we sent this transaction.
|
|
if (isFromMyTaddr) {
|
|
CAmount nValueOut = GetValueOut(); // transparent outputs plus all Sprout vpub_old and negative Sapling valueBalance
|
|
CAmount nValueIn = GetShieldedValueIn();
|
|
nFee = nDebit - nValueOut + nValueIn;
|
|
}
|
|
|
|
// Create output entry for vpub_old/new, if we sent utxos from this transaction
|
|
if (isFromMyTaddr) {
|
|
CAmount myVpubOld = 0;
|
|
CAmount myVpubNew = 0;
|
|
|
|
// Create an output for the value taken from or added to the transparent value pool by JoinSplits
|
|
if (myVpubOld > myVpubNew) {
|
|
COutputEntry output = {CNoDestination(), myVpubOld - myVpubNew, (int)vout.size()};
|
|
listSent.push_back(output);
|
|
} else if (myVpubNew > myVpubOld) {
|
|
COutputEntry output = {CNoDestination(), myVpubNew - myVpubOld, (int)vout.size()};
|
|
listReceived.push_back(output);
|
|
}
|
|
}
|
|
|
|
// If we sent utxos from this transaction, create output for value taken from (negative valueBalance)
|
|
// or added (positive valueBalance) to the transparent value pool by Sapling shielding and unshielding.
|
|
if (isFromMyTaddr) {
|
|
if (valueBalance < 0) {
|
|
COutputEntry output = {CNoDestination(), -valueBalance, (int) vout.size()};
|
|
listSent.push_back(output);
|
|
} else if (valueBalance > 0) {
|
|
COutputEntry output = {CNoDestination(), valueBalance, (int) vout.size()};
|
|
listReceived.push_back(output);
|
|
}
|
|
}
|
|
|
|
// Sent/received.
|
|
int32_t oneshot = 0;
|
|
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 (!(filter & ISMINE_CHANGE) && pwallet->IsChange(txout))
|
|
{
|
|
if ( oneshot++ > 1 )
|
|
{
|
|
//fprintf(stderr,"skip change vout\n");
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
else if (!(fIsMine & filter))
|
|
{
|
|
//fprintf(stderr,"skip filtered vout %d %d\n",(int32_t)fIsMine,(int32_t)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()); complains on the opreturns
|
|
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);
|
|
//else fprintf(stderr,"not sent vout %d %d\n",(int32_t)fIsMine,(int32_t)filter);
|
|
|
|
// If we are receiving the output, add it as a "received" entry
|
|
if (fIsMine & filter)
|
|
listReceived.push_back(output);
|
|
//else fprintf(stderr,"not received vout %d %d\n",(int32_t)fIsMine,(int32_t)filter);
|
|
}
|
|
|
|
}
|
|
|
|
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(CWalletDB *pwalletdb)
|
|
{
|
|
return pwalletdb->WriteTx(GetHash(), *this);
|
|
}
|
|
|
|
/**
|
|
* Reorder the transactions based on block hieght and block index.
|
|
* Transactions can get out of order when they are deleted and subsequently
|
|
* re-added during intial load rescan.
|
|
*/
|
|
|
|
void CWallet::ReorderWalletTransactions(std::map<std::pair<int,int>, CWalletTx*> &mapSorted, int64_t &maxOrderPos)
|
|
{
|
|
AssertLockHeld(cs_main);
|
|
AssertLockHeld(cs_wallet);
|
|
if(fZdebug)
|
|
fprintf(stderr,"%s: maxOrderPos=%li\n",__func__, maxOrderPos);
|
|
|
|
int maxSortNumber = chainActive.Tip()->GetHeight() + 1;
|
|
|
|
for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
|
|
{
|
|
CWalletTx* pwtx = &(it->second);
|
|
int confirms = pwtx->GetDepthInMainChain();
|
|
maxOrderPos = max(maxOrderPos, pwtx->nOrderPos);
|
|
|
|
if (confirms > 0) {
|
|
int wtxHeight = mapBlockIndex[pwtx->hashBlock]->GetHeight();
|
|
auto key = std::make_pair(wtxHeight, pwtx->nIndex);
|
|
mapSorted.insert(make_pair(key, pwtx));
|
|
} else {
|
|
auto key = std::make_pair(maxSortNumber, 0);
|
|
mapSorted.insert(std::make_pair(key, pwtx));
|
|
maxSortNumber++;
|
|
}
|
|
}
|
|
if(fZdebug)
|
|
fprintf(stderr,"%s: mapSorted.size=%lu\n",__func__, mapSorted.size());
|
|
}
|
|
|
|
/**Update the nOrderPos with passed in ordered map. */
|
|
void CWallet::UpdateWalletTransactionOrder(std::map<std::pair<int,int>, CWalletTx*> &mapSorted, bool resetOrder) {
|
|
AssertLockHeld(cs_main);
|
|
AssertLockHeld(cs_wallet);
|
|
|
|
int64_t previousPosition = 0;
|
|
std::map<const uint256, CWalletTx*> mapUpdatedTxs;
|
|
|
|
if(fZdebug)
|
|
fprintf(stderr,"%s: maxSorted.size=%li resetOrder=%d\n",__func__, mapSorted.size(),resetOrder);
|
|
|
|
//Check the position of each transaction relative to the previous one.
|
|
for (map<std::pair<int,int>, CWalletTx*>::iterator it = mapSorted.begin(); it != mapSorted.end(); ++it) {
|
|
CWalletTx* pwtx = it->second;
|
|
const uint256 wtxid = pwtx->GetHash();
|
|
|
|
if (pwtx->nOrderPos <= previousPosition || resetOrder) {
|
|
previousPosition++;
|
|
pwtx->nOrderPos = previousPosition;
|
|
mapUpdatedTxs.insert(std::make_pair(wtxid, pwtx));
|
|
} else {
|
|
previousPosition = pwtx->nOrderPos;
|
|
}
|
|
}
|
|
|
|
if(fZdebug)
|
|
fprintf(stderr,"%s: updating %li changed transactions\n",__func__, mapUpdatedTxs.size() );
|
|
|
|
//Update transactions nOrderPos for transactions that changed
|
|
CWalletDB walletdb(strWalletFile, "r+", false);
|
|
for (map<const uint256, CWalletTx*>::iterator it = mapUpdatedTxs.begin(); it != mapUpdatedTxs.end(); ++it) {
|
|
CWalletTx* pwtx = it->second;
|
|
LogPrintf("%s: Updating Position to %i for Tx %s\n ", __func__, pwtx->nOrderPos, pwtx->GetHash().ToString());
|
|
bool ret = pwtx->WriteToDisk(&walletdb);
|
|
if(fZdebug)
|
|
fprintf(stderr,"%s: wrote data to disk at %s for tx=%s ret=%d\n",__func__, strWalletFile.c_str(), pwtx->GetHash().ToString().c_str(), ret );
|
|
|
|
mapWallet[pwtx->GetHash()].nOrderPos = pwtx->nOrderPos;
|
|
}
|
|
if(fZdebug)
|
|
fprintf(stderr,"%s: updated nOrderPos on %lu transactions\n",__func__, mapUpdatedTxs.size() );
|
|
|
|
//Update Next Wallet Tx Position
|
|
nOrderPosNext = previousPosition++;
|
|
CWalletDB(strWalletFile).WriteOrderPosNext(nOrderPosNext);
|
|
if(fZdebug)
|
|
fprintf(stderr,"%s: wrote data to disk at %s nOrderPosNext=%li\n",__func__, strWalletFile.c_str(), nOrderPosNext );
|
|
LogPrintf("%s: Total Transactions Reordered %i, Next Position %i\n ", __func__, mapUpdatedTxs.size(), nOrderPosNext);
|
|
}
|
|
|
|
// Delete transactions from the Wallet
|
|
void CWallet::DeleteTransactions(std::vector<uint256> &removeTxs) {
|
|
AssertLockHeld(cs_wallet);
|
|
|
|
int numTx = removeTxs.size();
|
|
if(fZdebug)
|
|
fprintf(stderr,"%s: removeTxs.size=%d\n", __func__, numTx);
|
|
|
|
CWalletDB walletdb(strWalletFile, "r+", false);
|
|
|
|
for (int i = 0; i< numTx; i++) {
|
|
if (mapWallet.erase(removeTxs[i])) {
|
|
walletdb.EraseTx(removeTxs[i]);
|
|
LogPrintf("%s: Deleted tx %s, %i.\n", __func__, removeTxs[i].ToString(),i);
|
|
} else {
|
|
LogPrintf("%s: Deleting tx %s failed.\n", __func__, removeTxs[i].ToString());
|
|
return;
|
|
}
|
|
}
|
|
//TODO: the build system should check for malloc_trim support
|
|
#if defined(__linux__)
|
|
malloc_trim(0);
|
|
#else
|
|
// On Mac and Win memory isn't kept back upon vector or list member erase, different garbage collector strategy. No need to force trimming.
|
|
#endif
|
|
|
|
if(fZdebug)
|
|
fprintf(stderr,"%s: finished deleting %d transactions\n", __func__, numTx);
|
|
}
|
|
|
|
void CWallet::DeleteWalletTransactions(const CBlockIndex* pindex) {
|
|
AssertLockHeld(cs_main);
|
|
AssertLockHeld(cs_wallet);
|
|
|
|
int nDeleteAfter = (int)fDeleteTransactionsAfterNBlocks;
|
|
bool runCompact = false;
|
|
|
|
if(fZdebug)
|
|
fprintf(stderr,"%s: nDeleteAfter=%d\n",__func__,nDeleteAfter);
|
|
|
|
if (pindex && fTxDeleteEnabled) {
|
|
//Check for acentries - exit function if found
|
|
{
|
|
std::list<CAccountingEntry> acentries;
|
|
CWalletDB walletdb(strWalletFile);
|
|
walletdb.ListAccountCreditDebit("*", acentries);
|
|
if (acentries.size() > 0) {
|
|
LogPrintf("deletetx not compatible to account entries\n");
|
|
return;
|
|
}
|
|
}
|
|
//delete transactions
|
|
|
|
//Sort Transactions by block and block index
|
|
int64_t maxOrderPos = 0;
|
|
std::map<std::pair<int,int>, CWalletTx*> mapSorted;
|
|
ReorderWalletTransactions(mapSorted, maxOrderPos);
|
|
if (maxOrderPos > int64_t(mapSorted.size())*10) {
|
|
//reset the postion when the max postion is 10x bigger than the
|
|
//number of transactions in the wallet
|
|
LogPrintf("%s: Reorder Tx - maxOrderPos %i mapSorted Size %i\n", __func__, maxOrderPos, int64_t(mapSorted.size())*10);
|
|
UpdateWalletTransactionOrder(mapSorted, true);
|
|
} else {
|
|
UpdateWalletTransactionOrder(mapSorted, false);
|
|
}
|
|
|
|
//Process Transactions in sorted order
|
|
int txConflictCount = 0;
|
|
int txUnConfirmed = 0;
|
|
int txCount = 0;
|
|
int txSaveCount = 0;
|
|
std::vector<uint256> removeTxs;
|
|
|
|
for (auto & item : mapSorted)
|
|
{
|
|
|
|
CWalletTx* pwtx = item.second;
|
|
const uint256& wtxid = pwtx->GetHash();
|
|
bool deleteTx = true;
|
|
txCount += 1;
|
|
int wtxDepth = pwtx->GetDepthInMainChain();
|
|
|
|
//Keep anything newer than N Blocks
|
|
if (wtxDepth == 0)
|
|
txUnConfirmed++;
|
|
|
|
if (wtxDepth < nDeleteAfter && wtxDepth >= 0) {
|
|
if(fZdebug)
|
|
LogPrintf("%s: Transaction above minimum depth, tx %s\n", __func__, pwtx->GetHash().ToString());
|
|
deleteTx = false;
|
|
txSaveCount++;
|
|
continue;
|
|
} else if (wtxDepth == -1) {
|
|
//Enabled by default
|
|
if (!fTxConflictDeleteEnabled) {
|
|
if(fZdebug)
|
|
LogPrintf("%s: Conflict delete is not enabled tx %s\n", __func__, pwtx->GetHash().ToString());
|
|
deleteTx = false;
|
|
txSaveCount++;
|
|
continue;
|
|
} else {
|
|
txConflictCount++;
|
|
}
|
|
} else {
|
|
//Check for unspent inputs or spend less than N Blocks ago. (Sapling)
|
|
for (auto & pair : pwtx->mapSaplingNoteData) {
|
|
SaplingNoteData nd = pair.second;
|
|
if (!nd.nullifier || pwalletMain->GetSaplingSpendDepth(*nd.nullifier) <= fDeleteTransactionsAfterNBlocks) {
|
|
if(fZdebug)
|
|
LogPrintf("%s: Unspent sapling input tx %s\n", __func__, pwtx->GetHash().ToString());
|
|
deleteTx = false;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (!deleteTx) {
|
|
txSaveCount++;
|
|
continue;
|
|
}
|
|
|
|
if(fZdebug)
|
|
LogPrintf("%s: Unspent sapling input tx %s\n", __func__, pwtx->GetHash().ToString());
|
|
|
|
//Check for outputs that no longer have parents in the wallet. Exclude parents that are in the same transaction. (Sapling)
|
|
for (int i = 0; i < pwtx->vShieldedSpend.size(); i++) {
|
|
const SpendDescription& spendDesc = pwtx->vShieldedSpend[i];
|
|
if (pwalletMain->IsSaplingNullifierFromMe(spendDesc.nullifier)) {
|
|
const uint256& parentHash = pwalletMain->mapSaplingNullifiersToNotes[spendDesc.nullifier].hash;
|
|
const CWalletTx* parent = pwalletMain->GetWalletTx(parentHash);
|
|
if (parent != NULL && parentHash != wtxid) {
|
|
if(fZdebug)
|
|
LogPrintf("%s: Parent of sapling tx %s found\n", __func__, pwtx->GetHash().ToString());
|
|
deleteTx = false;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!deleteTx) {
|
|
txSaveCount++;
|
|
continue;
|
|
}
|
|
|
|
if(fZdebug)
|
|
LogPrintf("%s: Checking for unspent transparent inputs or spends less than %d Blocks ago\n",__func__, fDeleteTransactionsAfterNBlocks);
|
|
|
|
for (unsigned int i = 0; i < pwtx->vout.size(); i++) {
|
|
CTxDestination address;
|
|
ExtractDestination(pwtx->vout[i].scriptPubKey, address);
|
|
if(IsMine(pwtx->vout[i])) {
|
|
if (pwalletMain->GetSpendDepth(pwtx->GetHash(), i) <= fDeleteTransactionsAfterNBlocks) {
|
|
if(fZdebug)
|
|
LogPrintf("%s: Unspent transparent input tx %s\n", __func__, pwtx->GetHash().ToString());
|
|
deleteTx = false;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!deleteTx) {
|
|
txSaveCount++;
|
|
continue;
|
|
}
|
|
|
|
if(fZdebug)
|
|
LogPrintf("%s: Checking for transparent outputs that no longer have parents in the wallet\n",__func__);
|
|
for (int i = 0; i < pwtx->vin.size(); i++) {
|
|
const CTxIn& txin = pwtx->vin[i];
|
|
const uint256& parentHash = txin.prevout.hash;
|
|
const CWalletTx* parent = pwalletMain->GetWalletTx(txin.prevout.hash);
|
|
if (parent != NULL && parentHash != wtxid) {
|
|
if(fZdebug)
|
|
LogPrintf("%s: Parent of transparent tx %s found\n", __func__, pwtx->GetHash().ToString());
|
|
deleteTx = false;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (!deleteTx) {
|
|
txSaveCount++;
|
|
continue;
|
|
}
|
|
|
|
//Keep Last N Transactions
|
|
if (mapSorted.size() - txCount < fKeepLastNTransactions + txConflictCount + txUnConfirmed) {
|
|
if(fZdebug)
|
|
LogPrint("%s: Transaction set position %i, tx %s\n", __func__, mapSorted.size() - txCount, wtxid.ToString());
|
|
deleteTx = false;
|
|
txSaveCount++;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
//Collect everything else for deletion
|
|
if (deleteTx && int(removeTxs.size()) < MAX_DELETE_TX_SIZE) {
|
|
removeTxs.push_back(wtxid);
|
|
runCompact = true;
|
|
}
|
|
}
|
|
|
|
//Delete Transactions from wallet
|
|
DeleteTransactions(removeTxs);
|
|
LogPrintf("%s: Total Transaction Count %i, Transactions Deleted %i\n ", __func__, txCount, int(removeTxs.size()));
|
|
|
|
//Compress Wallet
|
|
if (runCompact) {
|
|
if(fZdebug)
|
|
fprintf(stderr,"%s: compacting wallet\n",__func__);
|
|
CWalletDB::Compact(bitdb,strWalletFile);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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();
|
|
const CChainParams& chainParams = Params();
|
|
if(fZdebug)
|
|
LogPrintf("%s: fUpdate=%d now=%li\n",__func__,fUpdate,nNow);
|
|
|
|
pwalletMain->fRescanning = true;
|
|
CBlockIndex* pindex = pindexStart;
|
|
pwalletMain->rescanStartHeight = pindex->GetHeight();
|
|
pwalletMain->rescanHeight = pwalletMain->rescanStartHeight;
|
|
{
|
|
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);
|
|
pwalletMain->rescanHeight = pindex ? pindex->GetHeight() : 0;
|
|
}
|
|
|
|
ShowProgress(_("Rescanning..."), 0); // show rescan progress in GUI as dialog or on splashscreen, if -rescan on startup
|
|
double dProgressStart = Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), pindex, false);
|
|
double dProgressTip = Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), chainActive.LastTip(), false);
|
|
|
|
while (pindex)
|
|
{
|
|
pwalletMain->rescanHeight = pindex->GetHeight();
|
|
if(pwalletMain->fAbortRescan) {
|
|
//TODO: should we update witness caches?
|
|
LogPrintf("%s: Rescan aborted at block %d\n", pwalletMain->rescanHeight);
|
|
pwalletMain->fRescanning = false;
|
|
return ret;
|
|
}
|
|
if (ShutdownRequested()) {
|
|
//TODO: should we update witness caches?
|
|
LogPrintf("%s: Rescan interrupted by shutdown request at block %d\n", pwalletMain->rescanHeight);
|
|
pwalletMain->fRescanning = false;
|
|
return ret;
|
|
}
|
|
|
|
if (pindex->GetHeight() % 100 == 0 && dProgressTip - dProgressStart > 0.0)
|
|
ShowProgress(_("Rescanning..."), std::max(1, std::min(99, (int)((Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), pindex, false) - dProgressStart) / (dProgressTip - dProgressStart) * 100))));
|
|
|
|
CBlock block;
|
|
bool involvesMe = false;
|
|
if (!ReadBlockFromDisk(block, pindex,1)) {
|
|
throw std::runtime_error(
|
|
strprintf("Cannot read block height %d (%s) from disk", pindex->GetHeight(), pindex->GetBlockHash().GetHex()));
|
|
}
|
|
|
|
BOOST_FOREACH(CTransaction& tx, block.vtx)
|
|
{
|
|
if (AddToWalletIfInvolvingMe(tx, &block, fUpdate)) {
|
|
involvesMe = true;
|
|
ret++;
|
|
}
|
|
}
|
|
|
|
SaplingMerkleTree saplingTree;
|
|
// This should never fail: we should always be able to get the tree
|
|
// state on the path to the tip of our chain
|
|
if (pindex->pprev) {
|
|
if (NetworkUpgradeActive(pindex->pprev->GetHeight(), Params().GetConsensus(), Consensus::UPGRADE_SAPLING)) {
|
|
assert(pcoinsTip->GetSaplingAnchorAt(pindex->pprev->hashFinalSaplingRoot, saplingTree));
|
|
}
|
|
}
|
|
|
|
// Build initial witness caches for blocks involving one of our addresses
|
|
if (involvesMe) {
|
|
LogPrintf("%s: block has one of our transactions, building witness cache\n", __func__);
|
|
BuildWitnessCache(pindex, true);
|
|
}
|
|
|
|
//Delete Transactions
|
|
if (fTxDeleteEnabled) {
|
|
if (pindex->GetHeight() % fDeleteInterval == 0)
|
|
DeleteWalletTransactions(pindex);
|
|
}
|
|
|
|
if (GetTime() >= nNow + 60) {
|
|
nNow = GetTime();
|
|
LogPrintf("Still rescanning. At block %d. Progress=%f\n", pindex->GetHeight(), Checkpoints::GuessVerificationProgress(chainParams.Checkpoints(), pindex));
|
|
}
|
|
// update rescan height before we scan the next block
|
|
pwalletMain->rescanHeight = pindex->GetHeight();
|
|
pindex = chainActive.Next(pindex);
|
|
}
|
|
|
|
//Update all witness caches
|
|
BuildWitnessCache(chainActive.Tip(), false);
|
|
|
|
ShowProgress(_("Rescanning..."), 100); // hide progress dialog in GUI
|
|
}
|
|
|
|
// we are no longer rescanning
|
|
pwalletMain->fRescanning = false;
|
|
return ret;
|
|
}
|
|
|
|
void CWallet::ReacceptWalletTransactions()
|
|
{
|
|
int64_t nNow = GetTime();
|
|
if(fZdebug)
|
|
LogPrintf("%s: now=%li\n",__func__,nNow);
|
|
|
|
if ( IsInitialBlockDownload() )
|
|
return;
|
|
// If transactions aren't being broadcasted, don't let them into local mempool either
|
|
if (!fBroadcastTransactions)
|
|
return;
|
|
LOCK2(cs_main, cs_wallet);
|
|
std::map<int64_t, CWalletTx*> mapSorted;
|
|
|
|
// Sort pending wallet transactions based on their initial wallet insertion order
|
|
BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
|
|
{
|
|
const uint256& wtxid = item.first;
|
|
CWalletTx& wtx = item.second;
|
|
if(wtx.GetHash() != wtxid) {
|
|
LogPrintf("%s: Something funky going on, skipping this tx. wtx.GetHash() != wtxid (%s != %s)\n", __func__, wtx.GetHash().ToString().c_str(), wtxid.ToString().c_str() );
|
|
continue;
|
|
}
|
|
// Crashing the node because of this is lame
|
|
// assert(wtx.GetHash() == wtxid);
|
|
|
|
int nDepth = wtx.GetDepthInMainChain();
|
|
|
|
if (!wtx.IsCoinBase() && nDepth < 0) {
|
|
mapSorted.insert(std::make_pair(wtx.nOrderPos, &wtx));
|
|
}
|
|
}
|
|
|
|
std::vector<uint256> vwtxh;
|
|
|
|
// Try to add wallet transactions to memory pool
|
|
BOOST_FOREACH(PAIRTYPE(const int64_t, CWalletTx*)& item, mapSorted)
|
|
{
|
|
CWalletTx& wtx = *(item.second);
|
|
|
|
LOCK(mempool.cs);
|
|
CValidationState state;
|
|
// attempt to add them, but don't set any DOS level
|
|
if (!::AcceptToMemoryPool(mempool, state, wtx, false, NULL, true, 0))
|
|
{
|
|
int nDoS;
|
|
bool invalid = state.IsInvalid(nDoS);
|
|
|
|
// log rejection and deletion
|
|
//printf("ERROR reaccepting wallet transaction %s to mempool, reason: %s, DoS: %d\n", wtx.GetHash().ToString().c_str(), state.GetRejectReason().c_str(), nDoS);
|
|
|
|
if (!wtx.IsCoinBase() && invalid && nDoS > 0 && state.GetRejectReason() != "tx-overwinter-expired")
|
|
{
|
|
LogPrintf("%s: erasing transaction %s\n", __func__, wtx.GetHash().GetHex().c_str());
|
|
vwtxh.push_back(wtx.GetHash());
|
|
}
|
|
}
|
|
}
|
|
for (auto hash : vwtxh)
|
|
{
|
|
EraseFromWallet(hash);
|
|
}
|
|
}
|
|
|
|
bool CWalletTx::RelayWalletTransaction()
|
|
{
|
|
int64_t nNow = GetTime();
|
|
//if(fZdebug)
|
|
// LogPrintf("%s: now=%li\n",__func__,nNow);
|
|
if ( pwallet == 0 )
|
|
{
|
|
//fprintf(stderr,"unexpected null pwallet in RelayWalletTransaction\n");
|
|
return(false);
|
|
}
|
|
assert(pwallet->GetBroadcastTransactions());
|
|
if (!IsCoinBase())
|
|
{
|
|
if (GetDepthInMainChain() == 0)
|
|
{
|
|
// if tx is expired, dont relay
|
|
LogPrintf("Relaying wtx %s\n", GetHash().ToString());
|
|
RelayTransaction((CTransaction)*this);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
set<uint256> CWalletTx::GetConflicts() const
|
|
{
|
|
set<uint256> result;
|
|
if (pwallet != NULL)
|
|
{
|
|
uint256 myHash = GetHash();
|
|
result = pwallet->GetConflicts(myHash);
|
|
result.erase(myHash);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
CAmount CWalletTx::GetDebit(const isminefilter& filter) const
|
|
{
|
|
if (vin.empty())
|
|
return 0;
|
|
|
|
CAmount debit = 0;
|
|
if(filter & ISMINE_SPENDABLE)
|
|
{
|
|
if (fDebitCached)
|
|
debit += nDebitCached;
|
|
else
|
|
{
|
|
nDebitCached = pwallet->GetDebit(*this, ISMINE_SPENDABLE);
|
|
fDebitCached = true;
|
|
debit += nDebitCached;
|
|
}
|
|
}
|
|
if(filter & ISMINE_WATCH_ONLY)
|
|
{
|
|
if(fWatchDebitCached)
|
|
debit += nWatchDebitCached;
|
|
else
|
|
{
|
|
nWatchDebitCached = pwallet->GetDebit(*this, ISMINE_WATCH_ONLY);
|
|
fWatchDebitCached = true;
|
|
debit += nWatchDebitCached;
|
|
}
|
|
}
|
|
return debit;
|
|
}
|
|
|
|
CAmount CWalletTx::GetCredit(const isminefilter& filter) const
|
|
{
|
|
// Must wait until coinbase is safely deep enough in the chain before valuing it
|
|
if (IsCoinBase() && GetBlocksToMaturity() > 0)
|
|
return 0;
|
|
|
|
int64_t credit = 0;
|
|
if (filter & ISMINE_SPENDABLE)
|
|
{
|
|
// GetBalance can assume transactions in mapWallet won't change
|
|
if (fCreditCached)
|
|
credit += nCreditCached;
|
|
else
|
|
{
|
|
nCreditCached = pwallet->GetCredit(*this, ISMINE_SPENDABLE);
|
|
fCreditCached = true;
|
|
credit += nCreditCached;
|
|
}
|
|
}
|
|
if (filter & ISMINE_WATCH_ONLY)
|
|
{
|
|
if (fWatchCreditCached)
|
|
credit += nWatchCreditCached;
|
|
else
|
|
{
|
|
nWatchCreditCached = pwallet->GetCredit(*this, ISMINE_WATCH_ONLY);
|
|
fWatchCreditCached = true;
|
|
credit += nWatchCreditCached;
|
|
}
|
|
}
|
|
return credit;
|
|
}
|
|
|
|
CAmount CWalletTx::GetImmatureCredit(bool fUseCache) const
|
|
{
|
|
if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
|
|
{
|
|
if (fUseCache && fImmatureCreditCached)
|
|
return nImmatureCreditCached;
|
|
nImmatureCreditCached = pwallet->GetCredit(*this, ISMINE_SPENDABLE);
|
|
fImmatureCreditCached = true;
|
|
return nImmatureCreditCached;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
CAmount CWalletTx::GetAvailableCredit(bool fUseCache) const
|
|
{
|
|
if (pwallet == 0)
|
|
return 0;
|
|
|
|
// Must wait until coinbase is safely deep enough in the chain before valuing it
|
|
if (IsCoinBase() && GetBlocksToMaturity() > 0)
|
|
return 0;
|
|
|
|
if (fUseCache && fAvailableCreditCached)
|
|
return nAvailableCreditCached;
|
|
|
|
CAmount nCredit = 0;
|
|
uint256 hashTx = GetHash();
|
|
for (unsigned int i = 0; i < vout.size(); i++)
|
|
{
|
|
if (!pwallet->IsSpent(hashTx, i))
|
|
{
|
|
nCredit += pwallet->GetCredit(*this, i, ISMINE_SPENDABLE);
|
|
if (!MoneyRange(nCredit))
|
|
throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
|
|
}
|
|
}
|
|
|
|
nAvailableCreditCached = nCredit;
|
|
fAvailableCreditCached = true;
|
|
return nCredit;
|
|
}
|
|
|
|
CAmount CWalletTx::GetImmatureWatchOnlyCredit(const bool& fUseCache) const
|
|
{
|
|
if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
|
|
{
|
|
if (fUseCache && fImmatureWatchCreditCached)
|
|
return nImmatureWatchCreditCached;
|
|
nImmatureWatchCreditCached = pwallet->GetCredit(*this, ISMINE_WATCH_ONLY);
|
|
fImmatureWatchCreditCached = true;
|
|
return nImmatureWatchCreditCached;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
CAmount CWalletTx::GetAvailableWatchOnlyCredit(const bool& fUseCache) const
|
|
{
|
|
if (pwallet == 0)
|
|
return 0;
|
|
|
|
// Must wait until coinbase is safely deep enough in the chain before valuing it
|
|
if (IsCoinBase() && GetBlocksToMaturity() > 0)
|
|
return 0;
|
|
|
|
if (fUseCache && fAvailableWatchCreditCached)
|
|
return nAvailableWatchCreditCached;
|
|
|
|
CAmount nCredit = 0;
|
|
for (unsigned int i = 0; i < vout.size(); i++)
|
|
{
|
|
if (!pwallet->IsSpent(GetHash(), i))
|
|
{
|
|
nCredit += pwallet->GetCredit(*this, i, ISMINE_WATCH_ONLY);
|
|
if (!MoneyRange(nCredit))
|
|
throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
|
|
}
|
|
}
|
|
|
|
nAvailableWatchCreditCached = nCredit;
|
|
fAvailableWatchCreditCached = true;
|
|
return nCredit;
|
|
}
|
|
|
|
CAmount CWalletTx::GetChange() const
|
|
{
|
|
if (fChangeCached)
|
|
return nChangeCached;
|
|
nChangeCached = pwallet->GetChange(*this);
|
|
fChangeCached = true;
|
|
return nChangeCached;
|
|
}
|
|
|
|
bool CWalletTx::IsTrusted() const
|
|
{
|
|
// Quick answer in most cases
|
|
if (!CheckFinalTx(*this))
|
|
return false;
|
|
int nDepth = GetDepthInMainChain();
|
|
if (nDepth >= 1)
|
|
return true;
|
|
if (nDepth < 0)
|
|
return false;
|
|
if (!bSpendZeroConfChange || !IsFromMe(ISMINE_ALL)) // using wtx's cached debit
|
|
return false;
|
|
|
|
// Trusted if all inputs are from us and are in the mempool:
|
|
BOOST_FOREACH(const CTxIn& txin, vin)
|
|
{
|
|
// Transactions not sent by us: not trusted
|
|
const CWalletTx* parent = pwallet->GetWalletTx(txin.prevout.hash);
|
|
if (parent == NULL)
|
|
return false;
|
|
const CTxOut& parentOut = parent->vout[txin.prevout.n];
|
|
if (pwallet->IsMine(parentOut) != ISMINE_SPENDABLE)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
std::vector<uint256> CWallet::ResendWalletTransactionsBefore(int64_t nTime)
|
|
{
|
|
std::vector<uint256> result;
|
|
|
|
LOCK(cs_wallet);
|
|
// Sort them in chronological order
|
|
multimap<unsigned int, CWalletTx*> mapSorted;
|
|
uint32_t now = (uint32_t)time(NULL);
|
|
LogPrintf("%s: nTime=%ld now=%d\n", __func__, nTime, now);
|
|
|
|
// vector of wallet transactions to delete
|
|
std::vector<uint256> vwtxh;
|
|
uint32_t erased = 0, skipped = 0;
|
|
|
|
BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
|
|
{
|
|
CWalletTx& wtx = item.second;
|
|
// Don't rebroadcast if newer than nTime:
|
|
if (wtx.nTimeReceived > nTime)
|
|
continue;
|
|
|
|
// Do not relay expired transactions, to avoid other nodes banning us
|
|
// Current code will not ban nodes relaying expired txs but older nodes will
|
|
if (wtx.nExpiryHeight > 0 && wtx.nExpiryHeight < chainActive.LastTip()->GetHeight()) {
|
|
fprintf(stderr,"%s: ignoring expired tx %s with expiry %d at height %d\n", __func__, wtx.GetHash().ToString().c_str(), wtx.nExpiryHeight, chainActive.LastTip()->GetHeight() );
|
|
// TODO: expired detection doesn't seem to work right
|
|
// append to list of txs to delete
|
|
// vwtxh.push_back(wtx.GetHash());
|
|
continue;
|
|
}
|
|
|
|
if ( (wtx.nLockTime >= LOCKTIME_THRESHOLD && wtx.nLockTime < now-HUSH_MAXMEMPOOLTIME) )
|
|
{
|
|
if(fDebug) {
|
|
LogPrintf("%s: skip Relaying wtx %s nLockTime %u vs now.%u\n", __func__, wtx.GetHash().ToString(),(uint32_t)wtx.nLockTime,now);
|
|
}
|
|
skipped++;
|
|
// TODO: this does not seem to handle rescanning+finding old coinbase txs correctly
|
|
//vwtxh.push_back(wtx.GetHash());
|
|
continue;
|
|
}
|
|
mapSorted.insert(make_pair(wtx.nTimeReceived, &wtx));
|
|
}
|
|
|
|
BOOST_FOREACH(PAIRTYPE(const unsigned int, CWalletTx*)& item, mapSorted)
|
|
{
|
|
if ( item.second != 0 )
|
|
{
|
|
CWalletTx &wtx = *item.second;
|
|
if (wtx.RelayWalletTransaction())
|
|
result.push_back(wtx.GetHash());
|
|
}
|
|
}
|
|
|
|
// Unless we remove these unconfirmed and/or expired txs from the wallet, they will
|
|
// persist there forever. They are too old to be accepted by network
|
|
// consensus rules, so we erase them.
|
|
// Expired txs are always unconfirmed, but unconfirmed tx's could be expired or not,
|
|
// i.e. expired txs are a subset of unconfirmed tx's. Expired tx's can never be included
|
|
// in a block because they are against consensus rules. Unconfirmed tx's might still be
|
|
// included in a future block.
|
|
for (auto hash : vwtxh)
|
|
{
|
|
EraseFromWallet(hash);
|
|
erased++;
|
|
}
|
|
|
|
if(erased > 0 || skipped > 0) {
|
|
LogPrintf("%s: Prevented relaying %d and erased %d transactions which are too old\n", __func__, skipped, erased);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void CWallet::ResendWalletTransactions(int64_t nBestBlockTime)
|
|
{
|
|
// Do this infrequently and randomly to avoid giving away
|
|
// that these are our transactions.
|
|
if (GetTime() < nNextResend || !fBroadcastTransactions)
|
|
return;
|
|
bool fFirst = (nNextResend == 0);
|
|
// TODO: BTC Core changed this to be every 12 hours instead of every 30 mins
|
|
nNextResend = GetTime() + GetRand(30 * 60);
|
|
if (fFirst)
|
|
return;
|
|
|
|
// do not resend during IBD/rescan because some txs will be unconfirmed
|
|
// until completion
|
|
if(IsInitialBlockDownload()) {
|
|
return;
|
|
}
|
|
if (pwalletMain->fRescanning) {
|
|
return;
|
|
}
|
|
|
|
// do not resend during a reindex or initial loading of blocks
|
|
if (HUSH_LOADINGBLOCKS) {
|
|
return;
|
|
}
|
|
|
|
// Only do it if there's been a new block since last time
|
|
if (nBestBlockTime < nLastResend)
|
|
return;
|
|
nLastResend = GetTime();
|
|
|
|
LogPrintf("%s: nBestBlockTime=%ld nNextResend=%ld nLastResend=%ld time=%ld\n", __func__, nBestBlockTime, nNextResend, nLastResend, GetTime());
|
|
// Rebroadcast unconfirmed txes older than 5 minutes before the last
|
|
// block was found:
|
|
std::vector<uint256> relayed = ResendWalletTransactionsBefore(nBestBlockTime-5*60);
|
|
if (!relayed.empty())
|
|
LogPrintf("%s: rebroadcast %u unconfirmed transactions\n", __func__, relayed.size());
|
|
}
|
|
|
|
/** @} */ // 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 (!CheckFinalTx(*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 (!CheckFinalTx(*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, bool fIncludeZeroValue, bool fIncludeCoinBase) const
|
|
{
|
|
uint64_t *ptr;
|
|
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 (!CheckFinalTx(*pcoin))
|
|
continue;
|
|
|
|
if (fOnlyConfirmed && !pcoin->IsTrusted())
|
|
continue;
|
|
|
|
if (pcoin->IsCoinBase() && !fIncludeCoinBase)
|
|
continue;
|
|
|
|
if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0)
|
|
continue;
|
|
|
|
int nDepth = pcoin->GetDepthInMainChain();
|
|
if (nDepth < 0)
|
|
continue;
|
|
|
|
for (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 || fIncludeZeroValue) &&
|
|
(!coinControl || !coinControl->HasSelected() || coinControl->IsSelected((*it).first, i)))
|
|
{
|
|
ptr = (uint64_t *)&pcoin->vout[i].interest;
|
|
(*ptr) = 0;
|
|
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
|
|
{
|
|
int32_t count = 0; //uint64_t lowest_interest = 0;
|
|
setCoinsRet.clear();
|
|
//memset(interests,0,sizeof(interests));
|
|
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;
|
|
if ( nTotalLower > 4*nTargetValue + CENT )
|
|
{
|
|
//fprintf(stderr,"why bother with all the utxo if we have double what is needed?\n");
|
|
break;
|
|
}
|
|
} 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, bool& fOnlyCoinbaseCoinsRet, bool& fNeedCoinbaseCoinsRet, const CCoinControl* coinControl) const
|
|
{
|
|
// Output parameter fOnlyCoinbaseCoinsRet is set to true when the only available coins are coinbase utxos.
|
|
uint64_t tmp; int32_t retval;
|
|
vector<COutput> vCoinsNoCoinbase, vCoinsWithCoinbase;
|
|
AvailableCoins(vCoinsNoCoinbase, true, coinControl, false, false);
|
|
AvailableCoins(vCoinsWithCoinbase, true, coinControl, false, true);
|
|
fOnlyCoinbaseCoinsRet = vCoinsNoCoinbase.size() == 0 && vCoinsWithCoinbase.size() > 0;
|
|
|
|
// If coinbase utxos can only be sent to zaddrs, exclude any coinbase utxos from coin selection.
|
|
bool fProtectCoinbase = Params().GetConsensus().fCoinbaseMustBeProtected;
|
|
vector<COutput> vCoins = (fProtectCoinbase) ? vCoinsNoCoinbase : vCoinsWithCoinbase;
|
|
|
|
// Output parameter fNeedCoinbaseCoinsRet is set to true if coinbase utxos need to be spent to meet target amount
|
|
if (fProtectCoinbase && vCoinsWithCoinbase.size() > vCoinsNoCoinbase.size()) {
|
|
CAmount value = 0;
|
|
for (const COutput& out : vCoinsNoCoinbase) {
|
|
if (!out.fSpendable) {
|
|
continue;
|
|
}
|
|
value += out.tx->vout[out.i].nValue;
|
|
value += out.tx->vout[out.i].interest;
|
|
}
|
|
if (value <= nTargetValue) {
|
|
CAmount valueWithCoinbase = 0;
|
|
for (const COutput& out : vCoinsWithCoinbase) {
|
|
if (!out.fSpendable) {
|
|
continue;
|
|
}
|
|
valueWithCoinbase += out.tx->vout[out.i].nValue;
|
|
valueWithCoinbase += out.tx->vout[out.i].interest;
|
|
}
|
|
fNeedCoinbaseCoinsRet = (valueWithCoinbase >= nTargetValue);
|
|
}
|
|
}
|
|
// coin control -> return all selected outputs (we want all selected to go into the transaction for sure)
|
|
if (coinControl && coinControl->HasSelected() && !coinControl->fAllowOtherInputs)
|
|
{
|
|
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);
|
|
}
|
|
// calculate value from preset inputs and store them
|
|
set<pair<const CWalletTx*, uint32_t> > setPresetCoins;
|
|
CAmount nValueFromPresetInputs = 0;
|
|
|
|
std::vector<COutPoint> vPresetInputs;
|
|
if (coinControl)
|
|
coinControl->ListSelected(vPresetInputs);
|
|
BOOST_FOREACH(const COutPoint& outpoint, vPresetInputs)
|
|
{
|
|
map<uint256, CWalletTx>::const_iterator it = mapWallet.find(outpoint.hash);
|
|
if (it != mapWallet.end())
|
|
{
|
|
const CWalletTx* pcoin = &it->second;
|
|
// Clearly invalid input, fail
|
|
if (pcoin->vout.size() <= outpoint.n)
|
|
return false;
|
|
nValueFromPresetInputs += pcoin->vout[outpoint.n].nValue;
|
|
nValueFromPresetInputs += pcoin->vout[outpoint.n].interest;
|
|
setPresetCoins.insert(make_pair(pcoin, outpoint.n));
|
|
} else
|
|
return false; // TODO: Allow non-wallet inputs
|
|
}
|
|
|
|
// remove preset inputs from vCoins
|
|
for (vector<COutput>::iterator it = vCoins.begin(); it != vCoins.end() && coinControl && coinControl->HasSelected();)
|
|
{
|
|
if (setPresetCoins.count(make_pair(it->tx, it->i)))
|
|
it = vCoins.erase(it);
|
|
else
|
|
++it;
|
|
}
|
|
retval = false;
|
|
if ( nTargetValue <= nValueFromPresetInputs )
|
|
retval = true;
|
|
else if ( SelectCoinsMinConf(nTargetValue, 1, 6, vCoins, setCoinsRet, nValueRet) != 0 )
|
|
retval = true;
|
|
else if ( SelectCoinsMinConf(nTargetValue, 1, 1, vCoins, setCoinsRet, nValueRet) != 0 )
|
|
retval = true;
|
|
else if ( bSpendZeroConfChange && SelectCoinsMinConf(nTargetValue, 0, 1, vCoins, setCoinsRet, nValueRet) != 0 )
|
|
retval = true;
|
|
// because SelectCoinsMinConf clears the setCoinsRet, we now add the possible inputs to the coinset
|
|
setCoinsRet.insert(setPresetCoins.begin(), setPresetCoins.end());
|
|
// add preset inputs to the total value selected
|
|
nValueRet += nValueFromPresetInputs;
|
|
return retval;
|
|
}
|
|
|
|
bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount &nFeeRet, int& nChangePosRet, std::string& strFailReason)
|
|
{
|
|
vector<CRecipient> vecSend;
|
|
|
|
// Turn the txout set into a CRecipient vector
|
|
BOOST_FOREACH(const CTxOut& txOut, tx.vout)
|
|
{
|
|
CRecipient recipient = {txOut.scriptPubKey, txOut.nValue, false};
|
|
vecSend.push_back(recipient);
|
|
}
|
|
|
|
CCoinControl coinControl;
|
|
coinControl.fAllowOtherInputs = true;
|
|
BOOST_FOREACH(const CTxIn& txin, tx.vin)
|
|
coinControl.Select(txin.prevout);
|
|
|
|
CReserveKey reservekey(this);
|
|
CWalletTx wtx;
|
|
|
|
if (!CreateTransaction(vecSend, wtx, reservekey, nFeeRet, nChangePosRet, strFailReason, &coinControl, false))
|
|
return false;
|
|
|
|
if (nChangePosRet != -1)
|
|
tx.vout.insert(tx.vout.begin() + nChangePosRet, wtx.vout[nChangePosRet]);
|
|
|
|
// Add new txins (keeping original txin scriptSig/order)
|
|
BOOST_FOREACH(const CTxIn& txin, wtx.vin)
|
|
{
|
|
bool found = false;
|
|
BOOST_FOREACH(const CTxIn& origTxIn, tx.vin)
|
|
{
|
|
if (txin.prevout.hash == origTxIn.prevout.hash && txin.prevout.n == origTxIn.prevout.n)
|
|
{
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!found)
|
|
tx.vin.push_back(txin);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CWallet::CreateTransaction(const vector<CRecipient>& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, CAmount& nFeeRet,
|
|
int& nChangePosRet, std::string& strFailReason, const CCoinControl* coinControl, bool sign)
|
|
{
|
|
uint64_t interest2 = 0; CAmount nValue = 0; unsigned int nSubtractFeeFromAmount = 0;
|
|
BOOST_FOREACH (const CRecipient& recipient, vecSend)
|
|
{
|
|
if (nValue < 0 || recipient.nAmount < 0)
|
|
{
|
|
strFailReason = _("Transaction amounts must be positive");
|
|
return false;
|
|
}
|
|
nValue += recipient.nAmount;
|
|
|
|
if (recipient.fSubtractFeeFromAmount)
|
|
nSubtractFeeFromAmount++;
|
|
}
|
|
if (vecSend.empty() || nValue < 0)
|
|
{
|
|
strFailReason = _("Transaction amounts must be positive");
|
|
return false;
|
|
}
|
|
|
|
wtxNew.fTimeReceivedIsTxTime = true;
|
|
wtxNew.BindWallet(this);
|
|
int nextBlockHeight = chainActive.Height() + 1;
|
|
CMutableTransaction txNew = CreateNewContextualCMutableTransaction(Params().GetConsensus(), nextBlockHeight);
|
|
|
|
if ( !hush_hardfork_active((uint32_t)chainActive.LastTip()->nTime) )
|
|
txNew.nLockTime = (uint32_t)chainActive.LastTip()->nTime + 1; // set to a time close to now
|
|
else
|
|
txNew.nLockTime = (uint32_t)chainActive.Tip()->GetMedianTimePast();
|
|
|
|
// Activates after Overwinter network upgrade
|
|
if (NetworkUpgradeActive(nextBlockHeight, Params().GetConsensus(), Consensus::UPGRADE_OVERWINTER)) {
|
|
if (txNew.nExpiryHeight >= TX_EXPIRY_HEIGHT_THRESHOLD){
|
|
strFailReason = _("nExpiryHeight must be less than TX_EXPIRY_HEIGHT_THRESHOLD.");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
unsigned int max_tx_size = MAX_TX_SIZE_AFTER_SAPLING;
|
|
if (!NetworkUpgradeActive(nextBlockHeight, Params().GetConsensus(), Consensus::UPGRADE_SAPLING)) {
|
|
max_tx_size = MAX_TX_SIZE_BEFORE_SAPLING;
|
|
}
|
|
/*
|
|
// Discourage fee sniping.
|
|
//
|
|
// However because of a off-by-one-error in previous versions we need to
|
|
// neuter it by setting nLockTime to at least one less than nBestHeight.
|
|
// Secondly currently propagation of transactions created for block heights
|
|
// corresponding to blocks that were just mined may be iffy - transactions
|
|
// aren't re-accepted into the mempool - we additionally neuter the code by
|
|
// going ten blocks back. Doesn't yet do anything for sniping, but does act
|
|
// to shake out wallet bugs like not showing nLockTime'd transactions at
|
|
// all.
|
|
txNew.nLockTime = std::max(0, chainActive.Height() - 10);
|
|
|
|
// Secondly occasionally randomly pick a nLockTime even further back, so
|
|
// that transactions that are delayed after signing for whatever reason,
|
|
// e.g. high-latency mix networks and some CoinJoin implementations, have
|
|
// better privacy.
|
|
if (GetRandInt(10) == 0)
|
|
txNew.nLockTime = std::max(0, (int)txNew.nLockTime - GetRandInt(100));
|
|
|
|
assert(txNew.nLockTime <= (unsigned int)chainActive.Height());
|
|
assert(txNew.nLockTime < LOCKTIME_THRESHOLD);*/
|
|
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
{
|
|
nFeeRet = 0;
|
|
while (true)
|
|
{
|
|
//interest = 0;
|
|
txNew.vin.clear();
|
|
txNew.vout.clear();
|
|
wtxNew.fFromMe = true;
|
|
nChangePosRet = -1;
|
|
bool fFirst = true;
|
|
|
|
CAmount nTotalValue = nValue;
|
|
if (nSubtractFeeFromAmount == 0)
|
|
nTotalValue += nFeeRet;
|
|
double dPriority = 0;
|
|
// vouts to the payees
|
|
BOOST_FOREACH (const CRecipient& recipient, vecSend)
|
|
{
|
|
CTxOut txout(recipient.nAmount, recipient.scriptPubKey);
|
|
|
|
if (recipient.fSubtractFeeFromAmount)
|
|
{
|
|
txout.nValue -= nFeeRet / nSubtractFeeFromAmount; // Subtract fee equally from each selected recipient
|
|
|
|
if (fFirst) // first receiver pays the remainder not divisible by output count
|
|
{
|
|
fFirst = false;
|
|
txout.nValue -= nFeeRet % nSubtractFeeFromAmount;
|
|
}
|
|
}
|
|
|
|
if (txout.IsDust(::minRelayTxFee))
|
|
{
|
|
if (recipient.fSubtractFeeFromAmount && nFeeRet > 0)
|
|
{
|
|
if (txout.nValue < 0)
|
|
strFailReason = _("The transaction amount is too small to pay the fee");
|
|
else
|
|
strFailReason = _("The transaction amount is too small to send after the fee has been deducted");
|
|
}
|
|
else
|
|
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;
|
|
bool fOnlyCoinbaseCoins = false;
|
|
bool fNeedCoinbaseCoins = false;
|
|
interest2 = 0;
|
|
if (!SelectCoins(nTotalValue, setCoins, nValueIn, fOnlyCoinbaseCoins, fNeedCoinbaseCoins, coinControl))
|
|
{
|
|
if (fOnlyCoinbaseCoins && Params().GetConsensus().fCoinbaseMustBeProtected) {
|
|
strFailReason = _("Coinbase funds can only be sent to a zaddr");
|
|
} else if (fNeedCoinbaseCoins) {
|
|
strFailReason = _("Insufficient funds, coinbase funds can only be spent after they have been sent to a zaddr");
|
|
} else {
|
|
strFailReason = _("Insufficient funds");
|
|
}
|
|
return false;
|
|
}
|
|
BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
|
|
{
|
|
CAmount nCredit = pcoin.first->vout[pcoin.second].nValue;
|
|
//The coin age 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.
|
|
//But mempool inputs might still be in the mempool, so their age stays 0
|
|
//fprintf(stderr,"nCredit %.8f interest %.8f\n",(double)nCredit/COIN,(double)pcoin.first->vout[pcoin.second].interest/COIN);
|
|
int age = pcoin.first->GetDepthInMainChain();
|
|
if (age != 0)
|
|
age += 1;
|
|
dPriority += (double)nCredit * age;
|
|
}
|
|
|
|
CAmount nChange = (nValueIn - nValue + interest2);
|
|
//fprintf(stderr,"wallet change %.8f (%.8f - %.8f) interest2 %.8f total %.8f\n",(double)nChange/COIN,(double)nValueIn/COIN,(double)nValue/COIN,(double)interest2/COIN,(double)nTotalValue/COIN);
|
|
if (nSubtractFeeFromAmount == 0)
|
|
nChange -= 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;
|
|
extern int32_t USE_EXTERNAL_PUBKEY; extern std::string NOTARY_PUBKEY;
|
|
if ( USE_EXTERNAL_PUBKEY == 0 )
|
|
{
|
|
bool ret;
|
|
ret = reservekey.GetReservedKey(vchPubKey);
|
|
assert(ret); // should never fail, as we just unlocked
|
|
scriptChange = GetScriptForDestination(vchPubKey.GetID());
|
|
}
|
|
else
|
|
{
|
|
//fprintf(stderr,"use notary pubkey\n");
|
|
scriptChange = CScript() << ParseHex(NOTARY_PUBKEY) << OP_CHECKSIG;
|
|
}
|
|
}
|
|
|
|
CTxOut newTxOut(nChange, scriptChange);
|
|
|
|
// We do not move dust-change to fees, because the sender would end up paying more than requested.
|
|
// This would be against the purpose of the all-inclusive feature.
|
|
// So instead we raise the change and deduct from the recipient.
|
|
if (nSubtractFeeFromAmount > 0 && newTxOut.IsDust(::minRelayTxFee))
|
|
{
|
|
CAmount nDust = newTxOut.GetDustThreshold(::minRelayTxFee) - newTxOut.nValue;
|
|
newTxOut.nValue += nDust; // raise change until no more dust
|
|
for (unsigned int i = 0; i < vecSend.size(); i++) // subtract from first recipient
|
|
{
|
|
if (vecSend[i].fSubtractFeeFromAmount)
|
|
{
|
|
txNew.vout[i].nValue -= nDust;
|
|
if (txNew.vout[i].IsDust(::minRelayTxFee))
|
|
{
|
|
strFailReason = _("The transaction amount is too small to send after the fee has been deducted");
|
|
return false;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Never create dust outputs; if we would, just
|
|
// add the dust to the fee.
|
|
if (newTxOut.IsDust(::minRelayTxFee))
|
|
{
|
|
nFeeRet += nChange;
|
|
reservekey.ReturnKey();
|
|
}
|
|
else
|
|
{
|
|
nChangePosRet = txNew.vout.size() - 1; // dont change first or last
|
|
vector<CTxOut>::iterator position = txNew.vout.begin()+nChangePosRet;
|
|
txNew.vout.insert(position, newTxOut);
|
|
}
|
|
} else reservekey.ReturnKey();
|
|
|
|
// Fill vin
|
|
//
|
|
// Note how the sequence number is set to max()-1 so that the
|
|
// nLockTime set above actually works.
|
|
BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
|
|
txNew.vin.push_back(CTxIn(coin.first->GetHash(),coin.second,CScript(),
|
|
std::numeric_limits<unsigned int>::max()-1));
|
|
|
|
// Check mempooltxinputlimit to avoid creating a transaction which the local mempool rejects
|
|
size_t limit = (size_t)GetArg("-mempooltxinputlimit", 0);
|
|
{
|
|
LOCK(cs_main);
|
|
if (NetworkUpgradeActive(chainActive.Height() + 1, Params().GetConsensus(), Consensus::UPGRADE_OVERWINTER)) {
|
|
limit = 0;
|
|
}
|
|
}
|
|
if (limit > 0) {
|
|
size_t n = txNew.vin.size();
|
|
if (n > limit) {
|
|
strFailReason = _(strprintf("Too many transparent inputs %zu > limit %zu", n, limit).c_str());
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Grab the current consensus branch ID
|
|
auto consensusBranchId = CurrentEpochBranchId(chainActive.Height() + 1, Params().GetConsensus());
|
|
|
|
// Sign
|
|
int nIn = 0;
|
|
CTransaction txNewConst(txNew);
|
|
BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
|
|
{
|
|
bool signSuccess;
|
|
const CScript& scriptPubKey = coin.first->vout[coin.second].scriptPubKey;
|
|
SignatureData sigdata;
|
|
if (sign)
|
|
signSuccess = ProduceSignature(TransactionSignatureCreator(this, &txNewConst, nIn, coin.first->vout[coin.second].nValue, SIGHASH_ALL), scriptPubKey, sigdata, consensusBranchId);
|
|
else
|
|
signSuccess = ProduceSignature(DummySignatureCreator(this), scriptPubKey, sigdata, consensusBranchId);
|
|
|
|
if (!signSuccess)
|
|
{
|
|
strFailReason = _("Signing transaction failed");
|
|
return false;
|
|
} else {
|
|
UpdateTransaction(txNew, nIn, sigdata);
|
|
}
|
|
|
|
nIn++;
|
|
}
|
|
|
|
unsigned int nBytes = ::GetSerializeSize(txNew, SER_NETWORK, PROTOCOL_VERSION);
|
|
|
|
// Remove scriptSigs if we used dummy signatures for fee calculation
|
|
if (!sign) {
|
|
BOOST_FOREACH (CTxIn& vin, txNew.vin)
|
|
vin.scriptSig = CScript();
|
|
}
|
|
|
|
// Embed the constructed transaction data in wtxNew.
|
|
*static_cast<CTransaction*>(&wtxNew) = CTransaction(txNew);
|
|
|
|
// Limit size
|
|
if (nBytes >= max_tx_size)
|
|
{
|
|
strFailReason = _("Transaction too large");
|
|
return false;
|
|
}
|
|
|
|
dPriority = wtxNew.ComputePriority(dPriority, nBytes);
|
|
|
|
// Can we complete this as a free transaction?
|
|
if (fSendFreeTransactions && nBytes <= MAX_FREE_TRANSACTION_CREATE_SIZE)
|
|
{
|
|
// 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;
|
|
}
|
|
|
|
CAmount nFeeNeeded = GetMinimumFee(nBytes, nTxConfirmTarget, mempool);
|
|
if ( nFeeNeeded < 5000 )
|
|
nFeeNeeded = 5000;
|
|
|
|
// If we made it here and we aren't even able to meet the relay fee on the next pass, give up
|
|
// because we must be at the maximum allowed fee.
|
|
if (nFeeNeeded < ::minRelayTxFee.GetFee(nBytes))
|
|
{
|
|
strFailReason = _("Transaction too large for fee policy");
|
|
return false;
|
|
}
|
|
|
|
if (nFeeRet >= nFeeNeeded)
|
|
break; // Done, enough fee included.
|
|
|
|
// Include more fee and try again.
|
|
nFeeRet = nFeeNeeded;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// 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, false, pwalletdb);
|
|
|
|
// 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;
|
|
}
|
|
|
|
std::string strCmd = GetArg("-txsend", "");
|
|
|
|
if (fBroadcastTransactions)
|
|
{
|
|
// Broadcast
|
|
if (!wtxNew.AcceptToMemoryPool(false))
|
|
{
|
|
fprintf(stderr,"commit failed\n");
|
|
// This must not fail. The transaction has already been signed and recorded.
|
|
LogPrintf("CommitTransaction(): Error: Transaction not valid\n");
|
|
return false;
|
|
}
|
|
wtxNew.RelayWalletTransaction();
|
|
}
|
|
// If we are configured to send transactions via an
|
|
// external service instead of broadcasting, do that
|
|
else if (!strCmd.empty()) {
|
|
boost::replace_all(strCmd, "%s", EncodeHexTx(wtxNew));
|
|
boost::thread t(runCommand, strCmd); // thread runs free
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
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 selected total at least (default=true)
|
|
if (fPayAtLeastCustomFee && nFeeNeeded > 0 && nFeeNeeded < payTxFee.GetFeePerK())
|
|
nFeeNeeded = payTxFee.GetFeePerK();
|
|
// 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);
|
|
// prevent user from paying a non-sense fee (like 1 satoshi): 0 < fee < minRelayFee
|
|
if (nFeeNeeded < ::minRelayTxFee.GetFee(nTxBytes))
|
|
nFeeNeeded = ::minRelayTxFee.GetFee(nTxBytes);
|
|
// But always obey the maximum
|
|
if (nFeeNeeded > maxTxFee)
|
|
nFeeNeeded = maxTxFee;
|
|
return nFeeNeeded;
|
|
}
|
|
|
|
|
|
void hush_prefetch(FILE *fp);
|
|
|
|
DBErrors CWallet::LoadWallet(bool& fFirstRunRet)
|
|
{
|
|
if (!fFileBacked)
|
|
return DB_LOAD_OK;
|
|
fFirstRunRet = false;
|
|
if ( 0 ) // doesnt help
|
|
{
|
|
fprintf(stderr,"loading wallet %s %u\n",strWalletFile.c_str(),(uint32_t)time(NULL));
|
|
FILE *fp;
|
|
if ( (fp= fopen(strWalletFile.c_str(),"rb")) != 0 )
|
|
{
|
|
hush_prefetch(fp);
|
|
fclose(fp);
|
|
}
|
|
}
|
|
//fprintf(stderr,"prefetched wallet %s %u\n",strWalletFile.c_str(),(uint32_t)time(NULL));
|
|
DBErrors nLoadWalletRet = CWalletDB(strWalletFile,"cr+").LoadWallet(this);
|
|
//fprintf(stderr,"loaded wallet %s %u\n",strWalletFile.c_str(),(uint32_t)time(NULL));
|
|
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
|
|
// that 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(EncodeDestination(address), strPurpose))
|
|
return false;
|
|
return CWalletDB(strWalletFile).WriteName(EncodeDestination(address), strName);
|
|
}
|
|
|
|
bool CWallet::DelAddressBook(const CTxDestination& address)
|
|
{
|
|
{
|
|
LOCK(cs_wallet); // mapAddressBook
|
|
|
|
if(fFileBacked)
|
|
{
|
|
// Delete destdata tuples associated with address
|
|
std::string strAddress = EncodeDestination(address);
|
|
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(EncodeDestination(address));
|
|
return CWalletDB(strWalletFile).EraseName(EncodeDestination(address));
|
|
}
|
|
|
|
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 (!CheckFinalTx(*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;
|
|
}
|
|
|
|
std::set<CTxDestination> CWallet::GetAccountAddresses(const std::string& strAccount) const
|
|
{
|
|
LOCK(cs_wallet);
|
|
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);
|
|
}
|
|
}
|
|
|
|
|
|
// Note Locking Operations
|
|
|
|
void CWallet::LockNote(const SaplingOutPoint& output)
|
|
{
|
|
AssertLockHeld(cs_wallet);
|
|
setLockedSaplingNotes.insert(output);
|
|
}
|
|
|
|
void CWallet::UnlockNote(const SaplingOutPoint& output)
|
|
{
|
|
AssertLockHeld(cs_wallet);
|
|
setLockedSaplingNotes.erase(output);
|
|
}
|
|
|
|
void CWallet::UnlockAllSaplingNotes()
|
|
{
|
|
AssertLockHeld(cs_wallet);
|
|
setLockedSaplingNotes.clear();
|
|
}
|
|
|
|
bool CWallet::IsLockedNote(const SaplingOutPoint& output) const
|
|
{
|
|
AssertLockHeld(cs_wallet);
|
|
return (setLockedSaplingNotes.count(output) > 0);
|
|
}
|
|
|
|
std::vector<SaplingOutPoint> CWallet::ListLockedSaplingNotes()
|
|
{
|
|
AssertLockHeld(cs_wallet);
|
|
std::vector<SaplingOutPoint> vOutputs(setLockedSaplingNotes.begin(), setLockedSaplingNotes.end());
|
|
return vOutputs;
|
|
}
|
|
|
|
/** @} */ // 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 CPubKey &key) {
|
|
CKeyID keyId = key.GetID();
|
|
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->GetHeight();
|
|
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->GetHeight())
|
|
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(EncodeDestination(dest), 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(EncodeDestination(dest), 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;
|
|
}
|
|
|
|
void CMerkleTx::SetMerkleBranch(const CBlock& block)
|
|
{
|
|
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");
|
|
}
|
|
|
|
// Fill in merkle branch
|
|
vMerkleBranch = block.GetMerkleBranch(nIndex);
|
|
}
|
|
|
|
int CMerkleTx::GetDepthInMainChainINTERNAL(const CBlockIndex* &pindexRet) const
|
|
{
|
|
if (hashBlock.IsNull() || 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->GetHeight() + 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 ( SMART_CHAIN_SYMBOL[0] == 0 )
|
|
COINBASE_MATURITY = _COINBASE_MATURITY;
|
|
if (!IsCoinBase())
|
|
return 0;
|
|
int32_t depth = GetDepthInMainChain();
|
|
int32_t ut = UnlockTime(0);
|
|
int32_t toMaturity = (ut - chainActive.Height()) < 0 ? 0 : ut - chainActive.Height();
|
|
//printf("depth.%i, unlockTime.%i, toMaturity.%i\n", depth, ut, toMaturity);
|
|
ut = (COINBASE_MATURITY - depth) < 0 ? 0 : COINBASE_MATURITY - depth;
|
|
return(ut < toMaturity ? toMaturity : ut);
|
|
}
|
|
|
|
bool CMerkleTx::AcceptToMemoryPool(bool fLimitFree, bool fRejectAbsurdFee)
|
|
{
|
|
CValidationState state;
|
|
return ::AcceptToMemoryPool(mempool, state, *this, fLimitFree, NULL, fRejectAbsurdFee);
|
|
}
|
|
|
|
/**
|
|
* Find notes in the wallet filtered by payment address, min depth and ability to spend.
|
|
* These notes are decrypted and added to the output parameter vector, outEntries.
|
|
*/
|
|
void CWallet::GetFilteredNotes(
|
|
std::vector<SaplingNoteEntry>& saplingEntries,
|
|
std::string address,
|
|
int minDepth,
|
|
bool ignoreSpent,
|
|
bool requireSpendingKey)
|
|
{
|
|
std::set<PaymentAddress> filterAddresses;
|
|
|
|
if (address.length() > 0) {
|
|
filterAddresses.insert(DecodePaymentAddress(address));
|
|
}
|
|
|
|
GetFilteredNotes(saplingEntries, filterAddresses, minDepth, INT_MAX, ignoreSpent, requireSpendingKey);
|
|
}
|
|
|
|
/**
|
|
* Find notes in the wallet filtered by payment addresses, min depth, max depth,
|
|
* if the note is spent, if a spending key is required, and if the notes are locked.
|
|
* These notes are decrypted and added to the output parameter vector, outEntries.
|
|
*/
|
|
void CWallet::GetFilteredNotes(
|
|
std::vector<SaplingNoteEntry>& saplingEntries,
|
|
std::set<PaymentAddress>& filterAddresses,
|
|
int minDepth,
|
|
int maxDepth,
|
|
bool ignoreSpent,
|
|
bool requireSpendingKey,
|
|
bool ignoreLocked)
|
|
{
|
|
LOCK2(cs_main, cs_wallet);
|
|
|
|
for (auto & p : mapWallet) {
|
|
CWalletTx wtx = p.second;
|
|
|
|
// Filter the transactions before checking for notes
|
|
if (!CheckFinalTx(wtx) || wtx.GetBlocksToMaturity() > 0)
|
|
continue;
|
|
|
|
if (minDepth > 1) {
|
|
int nHeight = tx_height(wtx.GetHash());
|
|
if ( nHeight == 0 ) {
|
|
continue;
|
|
}
|
|
int nDepth = wtx.GetDepthInMainChain();
|
|
int dpowconfs = hush_dpowconfs(nHeight,nDepth);
|
|
if ( dpowconfs < minDepth || dpowconfs > maxDepth) {
|
|
continue;
|
|
}
|
|
} else {
|
|
if ( wtx.GetDepthInMainChain() < minDepth ||
|
|
wtx.GetDepthInMainChain() > maxDepth) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
for (auto & pair : wtx.mapSaplingNoteData) {
|
|
SaplingOutPoint op = pair.first;
|
|
SaplingNoteData nd = pair.second;
|
|
|
|
auto maybe_pt = SaplingNotePlaintext::decrypt(
|
|
wtx.vShieldedOutput[op.n].encCiphertext,
|
|
nd.ivk,
|
|
wtx.vShieldedOutput[op.n].ephemeralKey,
|
|
wtx.vShieldedOutput[op.n].cm);
|
|
assert(static_cast<bool>(maybe_pt));
|
|
auto notePt = maybe_pt.get();
|
|
|
|
auto maybe_pa = nd.ivk.address(notePt.d);
|
|
assert(static_cast<bool>(maybe_pa));
|
|
auto pa = maybe_pa.get();
|
|
|
|
// skip notes which belong to a different payment address in the wallet
|
|
if (!(filterAddresses.empty() || filterAddresses.count(pa))) {
|
|
continue;
|
|
}
|
|
|
|
if (ignoreSpent && nd.nullifier && IsSaplingSpent(*nd.nullifier)) {
|
|
continue;
|
|
}
|
|
|
|
// skip notes which cannot be spent
|
|
if (requireSpendingKey) {
|
|
libzcash::SaplingIncomingViewingKey ivk;
|
|
libzcash::SaplingFullViewingKey fvk;
|
|
if (!(GetSaplingIncomingViewingKey(pa, ivk) &&
|
|
GetSaplingFullViewingKey(ivk, fvk) &&
|
|
HaveSaplingSpendingKey(fvk))) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// skip locked notes
|
|
// TODO: Add locking for Sapling notes -> done
|
|
if (ignoreLocked && IsLockedNote(op)) {
|
|
continue;
|
|
}
|
|
|
|
auto note = notePt.note(nd.ivk).get();
|
|
saplingEntries.push_back(SaplingNoteEntry {
|
|
op, pa, note, notePt.memo(), wtx.GetDepthInMainChain() });
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//
|
|
// Shielded key and address generalizations
|
|
//
|
|
|
|
bool IncomingViewingKeyBelongsToWallet::operator()(const libzcash::SaplingPaymentAddress &zaddr) const
|
|
{
|
|
libzcash::SaplingIncomingViewingKey ivk;
|
|
return m_wallet->GetSaplingIncomingViewingKey(zaddr, ivk);
|
|
}
|
|
|
|
bool IncomingViewingKeyBelongsToWallet::operator()(const libzcash::InvalidEncoding& no) const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool PaymentAddressBelongsToWallet::operator()(const libzcash::SaplingPaymentAddress &zaddr) const
|
|
{
|
|
libzcash::SaplingIncomingViewingKey ivk;
|
|
|
|
// If we have a SaplingExtendedSpendingKey in the wallet, then we will
|
|
// also have the corresponding SaplingFullViewingKey.
|
|
return m_wallet->GetSaplingIncomingViewingKey(zaddr, ivk) &&
|
|
m_wallet->HaveSaplingFullViewingKey(ivk);
|
|
}
|
|
|
|
bool PaymentAddressBelongsToWallet::operator()(const libzcash::InvalidEncoding& no) const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool HaveSpendingKeyForPaymentAddress::operator()(const libzcash::SaplingPaymentAddress &zaddr) const
|
|
{
|
|
libzcash::SaplingIncomingViewingKey ivk;
|
|
libzcash::SaplingFullViewingKey fvk;
|
|
|
|
return m_wallet->GetSaplingIncomingViewingKey(zaddr, ivk) &&
|
|
m_wallet->GetSaplingFullViewingKey(ivk, fvk) &&
|
|
m_wallet->HaveSaplingSpendingKey(fvk);
|
|
}
|
|
|
|
bool HaveSpendingKeyForPaymentAddress::operator()(const libzcash::InvalidEncoding& no) const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
boost::optional<libzcash::SpendingKey> GetSpendingKeyForPaymentAddress::operator()(
|
|
const libzcash::SaplingPaymentAddress &zaddr) const
|
|
{
|
|
libzcash::SaplingExtendedSpendingKey extsk;
|
|
if (m_wallet->GetSaplingExtendedSpendingKey(zaddr, extsk)) {
|
|
return libzcash::SpendingKey(extsk);
|
|
} else {
|
|
return boost::none;
|
|
}
|
|
}
|
|
|
|
boost::optional<libzcash::SpendingKey> GetSpendingKeyForPaymentAddress::operator()(
|
|
const libzcash::InvalidEncoding& no) const
|
|
{
|
|
// Defaults to InvalidEncoding
|
|
return libzcash::SpendingKey();
|
|
}
|
|
|
|
|
|
SpendingKeyAddResult AddSpendingKeyToWallet::operator()(const libzcash::SaplingExtendedSpendingKey &sk) const {
|
|
auto fvk = sk.expsk.full_viewing_key();
|
|
auto ivk = fvk.in_viewing_key();
|
|
auto addr = sk.DefaultAddress();
|
|
{
|
|
if (log){
|
|
LogPrint("zrpc", "Importing zaddr %s...\n", EncodePaymentAddress(addr));
|
|
}
|
|
// Don't throw error in case a key is already there
|
|
if (m_wallet->HaveSaplingSpendingKey(fvk)) {
|
|
return KeyAlreadyExists;
|
|
} else {
|
|
if (!m_wallet-> AddSaplingZKey(sk, addr)) {
|
|
return KeyNotAdded;
|
|
}
|
|
|
|
// Sapling addresses can't have been used in transactions prior to activation.
|
|
if (params.vUpgrades[Consensus::UPGRADE_SAPLING].nActivationHeight == Consensus::NetworkUpgrade::ALWAYS_ACTIVE) {
|
|
m_wallet->mapSaplingZKeyMetadata[ivk].nCreateTime = nTime;
|
|
} else {
|
|
// 154051200 seconds from epoch is Friday, 26 October 2018 00:00:00 GMT - definitely before Sapling activates
|
|
m_wallet->mapSaplingZKeyMetadata[ivk].nCreateTime = std::max((int64_t) 154051200, nTime);
|
|
}
|
|
if (hdKeypath) {
|
|
m_wallet->mapSaplingZKeyMetadata[ivk].hdKeypath = hdKeypath.get();
|
|
}
|
|
if (seedFpStr) {
|
|
uint256 seedFp;
|
|
seedFp.SetHex(seedFpStr.get());
|
|
m_wallet->mapSaplingZKeyMetadata[ivk].seedFp = seedFp;
|
|
}
|
|
return KeyAdded;
|
|
}
|
|
}
|
|
}
|
|
|
|
SpendingKeyAddResult AddSpendingKeyToWallet::operator()(const libzcash::InvalidEncoding& no) const {
|
|
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid spending key");
|
|
}
|
|
|