root
937 lines
31 KiB
C++
937 lines
31 KiB
C++
// Copyright (c) 2014-2015 The Dash developers
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// Copyright (c) 2015-2019 The PIVX developers
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// Copyright (c) 2022-2036 Agrarian Developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "masternode-payments.h"
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#include "addrman.h"
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#include "chainparams.h"
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#include "masternode-budget.h"
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#include "masternode-sync.h"
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#include "masternodeman.h"
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#include "obfuscation.h"
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#include "spork.h"
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#include "sync.h"
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#include "util.h"
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#include "utilmoneystr.h"
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#include <boost/filesystem.hpp>
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#include <algorithm>
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#include <cstdio>
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#include <limits>
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#include <string>
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#include <vector>
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/** Object for who's going to get paid on which blocks */
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CMasternodePayments masternodePayments;
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CCriticalSection cs_vecPayments;
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CCriticalSection cs_mapMasternodeBlocks;
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CCriticalSection cs_mapMasternodePayeeVotes;
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namespace {
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// Select the correct "newly created" transaction for payee validation based on block type.
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// - PoW blocks: coinbase is vtx[0]
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// - PoS blocks: coinstake is vtx[1] (with a null coinbase at vtx[0])
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//
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// This must NOT be derived from height-era assumptions, because Agrarian runs PoW+PoS concurrently
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// from Params().FIRST_POS_BLOCK() through Params().LAST_POW_BLOCK().
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const CTransaction& GetBlockNewTxForPayeeChecks(const CBlock& block)
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{
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// Defensive: preserve old behavior if vector is unexpectedly small.
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// A valid PoS block should have at least 2 tx; a valid PoW block at least 1 tx.
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if (block.IsProofOfStake() && block.vtx.size() > 1) {
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return block.vtx[1];
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}
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return block.vtx[0];
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}
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} // namespace
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//
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// CMasternodePaymentDB
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//
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CMasternodePaymentDB::CMasternodePaymentDB()
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{
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pathDB = GetDataDir() / "mnpayments.dat";
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strMagicMessage = "MasternodePayments";
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}
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bool CMasternodePaymentDB::Write(const CMasternodePayments& objToSave)
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{
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const int64_t nStart = GetTimeMillis();
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// serialize, checksum data up to that point, then append checksum
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CDataStream ssObj(SER_DISK, CLIENT_VERSION);
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ssObj << strMagicMessage; // masternode cache file specific magic message
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ssObj << FLATDATA(Params().MessageStart()); // network specific magic number
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ssObj << objToSave;
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const uint256 hash = Hash(ssObj.begin(), ssObj.end());
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ssObj << hash;
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// open output file, and associate with CAutoFile
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FILE* file = std::fopen(pathDB.string().c_str(), "wb");
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if (file == nullptr) {
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return error("%s : Failed to open file %s", __func__, pathDB.string());
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}
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CAutoFile fileout(file, SER_DISK, CLIENT_VERSION);
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if (fileout.IsNull()) {
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return error("%s : Failed to open file %s", __func__, pathDB.string());
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}
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// Write and commit header, data
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try {
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fileout << ssObj;
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} catch (const std::exception& e) {
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return error("%s : Serialize or I/O error - %s", __func__, e.what());
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}
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fileout.fclose();
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LogPrint("masternode", "Written info to mnpayments.dat %dms\n", GetTimeMillis() - nStart);
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return true;
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}
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CMasternodePaymentDB::ReadResult CMasternodePaymentDB::Read(CMasternodePayments& objToLoad, bool fDryRun)
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{
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const int64_t nStart = GetTimeMillis();
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// open input file, and associate with CAutoFile
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FILE* file = std::fopen(pathDB.string().c_str(), "rb");
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if (file == nullptr) {
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error("%s : Failed to open file %s", __func__, pathDB.string());
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return FileError;
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}
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CAutoFile filein(file, SER_DISK, CLIENT_VERSION);
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if (filein.IsNull()) {
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error("%s : Failed to open file %s", __func__, pathDB.string());
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return FileError;
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}
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int fileSize = 0;
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try {
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fileSize = static_cast<int>(boost::filesystem::file_size(pathDB));
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} catch (const std::exception& e) {
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error("%s : Unable to read file size %s (%s)", __func__, pathDB.string(), e.what());
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return FileError;
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}
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int dataSize = fileSize - static_cast<int>(sizeof(uint256));
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// Don't try to resize to a negative number if file is small
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if (dataSize < 0) {
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dataSize = 0;
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}
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std::vector<unsigned char> vchData;
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vchData.resize(static_cast<size_t>(dataSize));
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uint256 hashIn;
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// read data and checksum from file
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try {
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if (dataSize > 0) {
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filein.read(reinterpret_cast<char*>(&vchData[0]), dataSize);
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}
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filein >> hashIn;
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} catch (const std::exception& e) {
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error("%s : Deserialize or I/O error - %s", __func__, e.what());
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return HashReadError;
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}
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filein.fclose();
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CDataStream ssObj(vchData, SER_DISK, CLIENT_VERSION);
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// verify stored checksum matches input data
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const uint256 hashTmp = Hash(ssObj.begin(), ssObj.end());
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if (hashIn != hashTmp) {
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error("%s : Checksum mismatch, data corrupted", __func__);
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return IncorrectHash;
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}
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unsigned char pchMsgTmp[4];
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std::string strMagicMessageTmp;
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try {
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// de-serialize file header (masternode cache file specific magic message) and ..
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ssObj >> strMagicMessageTmp;
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// ... verify the message matches predefined one
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if (strMagicMessage != strMagicMessageTmp) {
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error("%s : Invalid masternode payment cache magic message", __func__);
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return IncorrectMagicMessage;
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}
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// de-serialize file header (network specific magic number) and ..
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ssObj >> FLATDATA(pchMsgTmp);
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// ... verify the network matches ours
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if (std::memcmp(pchMsgTmp, Params().MessageStart(), sizeof(pchMsgTmp))) {
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error("%s : Invalid network magic number", __func__);
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return IncorrectMagicNumber;
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}
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// de-serialize data into CMasternodePayments object
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ssObj >> objToLoad;
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} catch (const std::exception& e) {
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objToLoad.Clear();
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error("%s : Deserialize or I/O error - %s", __func__, e.what());
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return IncorrectFormat;
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}
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LogPrint("masternode", "Loaded info from mnpayments.dat %dms\n", GetTimeMillis() - nStart);
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LogPrint("masternode", " %s\n", objToLoad.ToString());
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if (!fDryRun) {
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LogPrint("masternode", "Masternode payments manager - cleaning....\n");
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objToLoad.CleanPaymentList();
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LogPrint("masternode", "Masternode payments manager - result:\n");
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LogPrint("masternode", " %s\n", objToLoad.ToString());
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}
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return Ok;
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}
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void DumpMasternodePayments()
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{
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const int64_t nStart = GetTimeMillis();
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CMasternodePaymentDB paymentdb;
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CMasternodePayments tempPayments;
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LogPrint("masternode", "Verifying mnpayments.dat format...\n");
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const CMasternodePaymentDB::ReadResult readResult = paymentdb.Read(tempPayments, true);
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// there was an error and it was not an error on file opening => do not proceed
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if (readResult == CMasternodePaymentDB::FileError) {
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LogPrint("masternode", "Missing payments file - mnpayments.dat, will try to recreate\n");
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} else if (readResult != CMasternodePaymentDB::Ok) {
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LogPrint("masternode", "Error reading mnpayments.dat: ");
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if (readResult == CMasternodePaymentDB::IncorrectFormat) {
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LogPrint("masternode", "magic is ok but data has invalid format, will try to recreate\n");
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} else {
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LogPrint("masternode", "file format is unknown or invalid, please fix it manually\n");
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return;
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}
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}
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LogPrint("masternode", "Writing info to mnpayments.dat...\n");
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paymentdb.Write(masternodePayments);
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LogPrint("masternode", "Payments dump finished %dms\n", GetTimeMillis() - nStart);
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}
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bool IsBlockValueValid(const CBlock& block, CAmount nExpectedValue, CAmount nMinted)
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{
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CBlockIndex* pindexPrev = chainActive.Tip();
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if (pindexPrev == nullptr) {
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return true;
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}
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int nHeight = 0;
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if (pindexPrev->GetBlockHash() == block.hashPrevBlock) {
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nHeight = pindexPrev->nHeight + 1;
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} else { // out of order
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BlockMap::iterator mi = mapBlockIndex.find(block.hashPrevBlock);
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if (mi != mapBlockIndex.end() && (*mi).second) {
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nHeight = (*mi).second->nHeight + 1;
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}
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}
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if (nHeight == 0) {
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LogPrint("masternode", "IsBlockValueValid() : WARNING: Couldn't find previous block\n");
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}
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if (!masternodeSync.IsSynced()) { // there is no budget data to use to check anything
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// super blocks will always be on these blocks, max 100 per budgeting
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if (nHeight % Params().GetBudgetCycleBlocks() < 100) {
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return true;
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}
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return nMinted <= nExpectedValue;
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}
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// we're synced and have data so check the budget schedule
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// are these blocks even enabled
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if (!IsSporkActive(SPORK_13_ENABLE_SUPERBLOCKS)) {
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return nMinted <= nExpectedValue;
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}
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if (budget.IsBudgetPaymentBlock(nHeight)) {
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// the value of the block is evaluated in CheckBlock
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return true;
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}
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return nMinted <= nExpectedValue;
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}
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bool IsBlockPayeeValid(const CBlock& block, int nBlockHeight)
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{
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TrxValidationStatus transactionStatus = TrxValidationStatus::InValid;
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if (!masternodeSync.IsSynced()) { // there is no budget data to use to check anything -- find the longest chain
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LogPrint("mnpayments", "Client not synced, skipping block payee checks\n");
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return true;
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}
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const CTransaction& txNew = GetBlockNewTxForPayeeChecks(block);
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// check if it's a budget block
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if (IsSporkActive(SPORK_13_ENABLE_SUPERBLOCKS)) {
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if (budget.IsBudgetPaymentBlock(nBlockHeight)) {
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transactionStatus = budget.IsTransactionValid(txNew, nBlockHeight);
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if (transactionStatus == TrxValidationStatus::Valid) {
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return true;
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}
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if (transactionStatus == TrxValidationStatus::InValid) {
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LogPrint("masternode", "Invalid budget payment detected %s\n", txNew.ToString().c_str());
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if (IsSporkActive(SPORK_9_MASTERNODE_BUDGET_ENFORCEMENT)) {
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return false;
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}
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LogPrint("masternode", "Budget enforcement is disabled, accepting block\n");
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}
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}
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}
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// If we end here the transaction was either InValid and Budget enforcement is disabled, or
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// a double budget payment (DoublePayment) was detected, or no/not enough masternode
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// votes (VoteThreshold) for a finalized budget were found.
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// In all cases a masternode will get the payment for this block.
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// check for masternode payee
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if (masternodePayments.IsTransactionValid(txNew, nBlockHeight)) {
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return true;
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}
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LogPrint("masternode", "Invalid mn payment detected %s\n", txNew.ToString().c_str());
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if (IsSporkActive(SPORK_8_MASTERNODE_PAYMENT_ENFORCEMENT)) {
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return false;
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}
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LogPrint("masternode", "Masternode payment enforcement is disabled, accepting block\n");
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return true;
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}
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void FillBlockPayee(CMutableTransaction& txNew, CAmount nFees, bool fProofOfStake, bool fZAGRStake)
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{
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CBlockIndex* pindexPrev = chainActive.Tip();
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if (!pindexPrev) {
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return;
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}
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const int nextHeight = pindexPrev->nHeight + 1;
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if (IsSporkActive(SPORK_13_ENABLE_SUPERBLOCKS) && budget.IsBudgetPaymentBlock(nextHeight)) {
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budget.FillBlockPayee(txNew, nFees, fProofOfStake);
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} else {
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masternodePayments.FillBlockPayee(txNew, nFees, fProofOfStake, fZAGRStake);
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}
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}
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std::string GetRequiredPaymentsString(int nBlockHeight)
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{
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if (IsSporkActive(SPORK_13_ENABLE_SUPERBLOCKS) && budget.IsBudgetPaymentBlock(nBlockHeight)) {
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return budget.GetRequiredPaymentsString(nBlockHeight);
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}
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return masternodePayments.GetRequiredPaymentsString(nBlockHeight);
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}
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void CMasternodePayments::FillBlockPayee(CMutableTransaction& txNew, int64_t /*nFees*/, bool fProofOfStake, bool fZAGRStake)
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{
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CBlockIndex* pindexPrev = chainActive.Tip();
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if (!pindexPrev) {
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return;
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}
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bool hasPayment = true;
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CScript payee;
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// spork / schedule
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if (!masternodePayments.GetBlockPayee(pindexPrev->nHeight + 1, payee)) {
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// no masternode detected
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CMasternode* winningNode = mnodeman.GetCurrentMasterNode(1);
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if (winningNode) {
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payee = GetScriptForDestination(winningNode->pubKeyCollateralAddress.GetID());
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} else {
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LogPrint("masternode", "CreateNewBlock: Failed to detect masternode to pay\n");
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hasPayment = false;
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}
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}
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const int payHeight = pindexPrev->nHeight + 1;
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const CAmount blockValue = GetBlockValue(payHeight);
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const CAmount masternodePayment = GetMasternodePayment(payHeight, blockValue, 0, fZAGRStake);
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if (hasPayment) {
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if (fProofOfStake) {
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/** For Proof Of Stake vout[0] must be null.
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* Stake reward can be split into many different outputs, so we must
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* use vout.size() to align with several different cases.
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* An additional output is appended as the masternode payment.
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*/
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const unsigned int i = txNew.vout.size();
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txNew.vout.resize(i + 1);
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txNew.vout[i].scriptPubKey = payee;
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txNew.vout[i].nValue = masternodePayment;
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// subtract mn payment from the stake reward
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// NOTE: original code used vout[1] and (i-1); keep behavior, but guard bounds.
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if (i > 0) {
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if (!txNew.vout[1].IsZerocoinMint() && (i - 1) < txNew.vout.size()) {
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txNew.vout[i - 1].nValue -= masternodePayment;
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}
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}
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} else {
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txNew.vout.resize(2);
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txNew.vout[1].scriptPubKey = payee;
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txNew.vout[1].nValue = masternodePayment;
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txNew.vout[0].nValue = blockValue - masternodePayment;
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}
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CTxDestination address1;
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ExtractDestination(payee, address1);
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CBitcoinAddress address2(address1);
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LogPrint("masternode", "Masternode payment of %s to %s\n", FormatMoney(masternodePayment).c_str(), address2.ToString().c_str());
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}
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}
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int CMasternodePayments::GetMinMasternodePaymentsProto()
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{
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if (IsSporkActive(SPORK_10_MASTERNODE_PAY_UPDATED_NODES))
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return ActiveProtocol(); // Allow only updated peers
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return MIN_PEER_PROTO_VERSION_BEFORE_ENFORCEMENT; // Also allow old peers as long as they are allowed to run
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}
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void CMasternodePayments::ProcessMessageMasternodePayments(CNode* pfrom, std::string& strCommand, CDataStream& vRecv)
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{
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if (!masternodeSync.IsBlockchainSynced()) {
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return;
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}
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if (fLiteMode) {
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return; // disable all Obfuscation/Masternode related functionality
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}
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if (strCommand == "mnget") { // Masternode Payments Request Sync
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int nCountNeeded;
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vRecv >> nCountNeeded;
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if (Params().NetworkID() == CBaseChainParams::MAIN) {
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if (pfrom->HasFulfilledRequest("mnget")) {
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LogPrintf("CMasternodePayments::ProcessMessageMasternodePayments() : mnget - peer already asked me for the list\n");
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Misbehaving(pfrom->GetId(), 20);
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return;
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}
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}
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pfrom->FulfilledRequest("mnget");
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masternodePayments.Sync(pfrom, nCountNeeded);
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LogPrint("mnpayments", "mnget - Sent Masternode winners to peer %i\n", pfrom->GetId());
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return;
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}
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if (strCommand == "mnw") { // Masternode Payments Declare Winner
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CMasternodePaymentWinner winner;
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vRecv >> winner;
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if (pfrom->nVersion < ActiveProtocol()) {
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return;
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}
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int nHeight;
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{
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TRY_LOCK(cs_main, locked);
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if (!locked || chainActive.Tip() == nullptr) {
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return;
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}
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nHeight = chainActive.Tip()->nHeight;
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}
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if (masternodePayments.mapMasternodePayeeVotes.count(winner.GetHash())) {
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LogPrint("mnpayments", "mnw - Already seen - %s bestHeight %d\n", winner.GetHash().ToString().c_str(), nHeight);
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masternodeSync.AddedMasternodeWinner(winner.GetHash());
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return;
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}
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const int nFirstBlock = nHeight - static_cast<int>(mnodeman.CountEnabled() * 1.25);
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if (winner.nBlockHeight < nFirstBlock || winner.nBlockHeight > nHeight + 20) {
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LogPrint("mnpayments", "mnw - winner out of range - FirstBlock %d Height %d bestHeight %d\n", nFirstBlock, winner.nBlockHeight, nHeight);
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return;
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}
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std::string strError;
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if (!winner.IsValid(pfrom, strError)) {
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return;
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}
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if (!masternodePayments.CanVote(winner.vinMasternode.prevout, winner.nBlockHeight)) {
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return;
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}
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if (!winner.SignatureValid()) {
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if (masternodeSync.IsSynced()) {
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LogPrintf("CMasternodePayments::ProcessMessageMasternodePayments() : mnw - invalid signature\n");
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Misbehaving(pfrom->GetId(), 20);
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}
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// it could just be a non-synced masternode
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mnodeman.AskForMN(pfrom, winner.vinMasternode);
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return;
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}
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if (masternodePayments.AddWinningMasternode(winner)) {
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winner.Relay();
|
|
masternodeSync.AddedMasternodeWinner(winner.GetHash());
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
bool CMasternodePaymentWinner::Sign(CKey& keyMasternode, CPubKey& pubKeyMasternode)
|
|
{
|
|
std::string errorMessage;
|
|
|
|
const std::string strMessage =
|
|
vinMasternode.prevout.ToStringShort() + std::to_string(nBlockHeight) + payee.ToString();
|
|
|
|
if (!obfuScationSigner.SignMessage(strMessage, errorMessage, vchSig, keyMasternode)) {
|
|
LogPrint("masternode", "CMasternodePing::Sign() - Error: %s\n", errorMessage.c_str());
|
|
return false;
|
|
}
|
|
|
|
if (!obfuScationSigner.VerifyMessage(pubKeyMasternode, vchSig, strMessage, errorMessage)) {
|
|
LogPrint("masternode", "CMasternodePing::Sign() - Error: %s\n", errorMessage.c_str());
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CMasternodePayments::GetBlockPayee(int nBlockHeight, CScript& payee)
|
|
{
|
|
if (mapMasternodeBlocks.count(nBlockHeight)) {
|
|
return mapMasternodeBlocks[nBlockHeight].GetPayee(payee);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Is this masternode scheduled to get paid soon?
|
|
// -- Only look ahead up to 8 blocks to allow for propagation of the latest 2 winners
|
|
bool CMasternodePayments::IsScheduled(CMasternode& mn, int nNotBlockHeight)
|
|
{
|
|
LOCK(cs_mapMasternodeBlocks);
|
|
|
|
int nHeight;
|
|
{
|
|
TRY_LOCK(cs_main, locked);
|
|
if (!locked || chainActive.Tip() == nullptr) {
|
|
return false;
|
|
}
|
|
nHeight = chainActive.Tip()->nHeight;
|
|
}
|
|
|
|
const CScript mnpayee = GetScriptForDestination(mn.pubKeyCollateralAddress.GetID());
|
|
|
|
CScript payee;
|
|
for (int64_t h = nHeight; h <= nHeight + 8; h++) {
|
|
if (h == nNotBlockHeight) {
|
|
continue;
|
|
}
|
|
if (mapMasternodeBlocks.count(h)) {
|
|
if (mapMasternodeBlocks[h].GetPayee(payee)) {
|
|
if (mnpayee == payee) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool CMasternodePayments::AddWinningMasternode(CMasternodePaymentWinner& winnerIn)
|
|
{
|
|
uint256 blockHash = 0;
|
|
if (!GetBlockHash(blockHash, winnerIn.nBlockHeight - 100)) {
|
|
return false;
|
|
}
|
|
|
|
{
|
|
LOCK2(cs_mapMasternodePayeeVotes, cs_mapMasternodeBlocks);
|
|
|
|
if (mapMasternodePayeeVotes.count(winnerIn.GetHash())) {
|
|
return false;
|
|
}
|
|
|
|
mapMasternodePayeeVotes[winnerIn.GetHash()] = winnerIn;
|
|
|
|
if (!mapMasternodeBlocks.count(winnerIn.nBlockHeight)) {
|
|
CMasternodeBlockPayees blockPayees(winnerIn.nBlockHeight);
|
|
mapMasternodeBlocks[winnerIn.nBlockHeight] = blockPayees;
|
|
}
|
|
}
|
|
|
|
mapMasternodeBlocks[winnerIn.nBlockHeight].AddPayee(winnerIn.payee, 1);
|
|
return true;
|
|
}
|
|
|
|
bool CMasternodeBlockPayees::IsTransactionValid(const CTransaction& txNew)
|
|
{
|
|
LOCK(cs_vecPayments);
|
|
|
|
int nMaxSignatures = 0;
|
|
int nMasternode_Drift_Count = 0;
|
|
|
|
std::string strPayeesPossible;
|
|
|
|
const CAmount nReward = GetBlockValue(nBlockHeight);
|
|
|
|
if (IsSporkActive(SPORK_8_MASTERNODE_PAYMENT_ENFORCEMENT)) {
|
|
// Get a stable number of masternodes by ignoring newly activated (< 8000 sec old) masternodes
|
|
nMasternode_Drift_Count = mnodeman.stable_size() + Params().MasternodeCountDrift();
|
|
} else {
|
|
// Account for the fact that all peers do not see the same masternode count.
|
|
// An allowance of being off our masternode count is given.
|
|
// We only need to look at an increased masternode count because as count increases, the reward decreases.
|
|
// This code only checks for mnPayment >= required, so it only makes sense to check the max node count allowed.
|
|
nMasternode_Drift_Count = mnodeman.size() + Params().MasternodeCountDrift();
|
|
}
|
|
|
|
const CAmount requiredMasternodePayment =
|
|
GetMasternodePayment(nBlockHeight, nReward, nMasternode_Drift_Count, txNew.HasZerocoinSpendInputs());
|
|
|
|
// require at least 6 signatures
|
|
for (CMasternodePayee& payee : vecPayments) {
|
|
if (payee.nVotes >= nMaxSignatures && payee.nVotes >= MNPAYMENTS_SIGNATURES_REQUIRED) {
|
|
nMaxSignatures = payee.nVotes;
|
|
}
|
|
}
|
|
|
|
// If we don't have at least 6 signatures on a payee, approve whichever is the longest chain
|
|
if (nMaxSignatures < MNPAYMENTS_SIGNATURES_REQUIRED) {
|
|
return true;
|
|
}
|
|
|
|
for (CMasternodePayee& payee : vecPayments) {
|
|
bool found = false;
|
|
|
|
for (const CTxOut& out : txNew.vout) {
|
|
if (payee.scriptPubKey == out.scriptPubKey) {
|
|
if (out.nValue >= requiredMasternodePayment) {
|
|
found = true;
|
|
} else {
|
|
LogPrint("masternode", "Masternode payment is out of drift range. Paid=%s Min=%s\n",
|
|
FormatMoney(out.nValue).c_str(), FormatMoney(requiredMasternodePayment).c_str());
|
|
}
|
|
}
|
|
}
|
|
|
|
if (payee.nVotes >= MNPAYMENTS_SIGNATURES_REQUIRED) {
|
|
if (found) {
|
|
return true;
|
|
}
|
|
|
|
CTxDestination address1;
|
|
ExtractDestination(payee.scriptPubKey, address1);
|
|
CBitcoinAddress address2(address1);
|
|
|
|
if (strPayeesPossible.empty()) {
|
|
strPayeesPossible += address2.ToString();
|
|
} else {
|
|
strPayeesPossible += "," + address2.ToString();
|
|
}
|
|
}
|
|
}
|
|
|
|
LogPrint("masternode", "CMasternodePayments::IsTransactionValid - Missing required payment of %s to %s\n",
|
|
FormatMoney(requiredMasternodePayment).c_str(), strPayeesPossible.c_str());
|
|
return false;
|
|
}
|
|
|
|
std::string CMasternodeBlockPayees::GetRequiredPaymentsString()
|
|
{
|
|
LOCK(cs_vecPayments);
|
|
|
|
std::string ret = "Unknown";
|
|
|
|
for (CMasternodePayee& payee : vecPayments) {
|
|
CTxDestination address1;
|
|
ExtractDestination(payee.scriptPubKey, address1);
|
|
CBitcoinAddress address2(address1);
|
|
|
|
if (ret != "Unknown") {
|
|
ret += ", " + address2.ToString() + ":" + std::to_string(payee.nVotes);
|
|
} else {
|
|
ret = address2.ToString() + ":" + std::to_string(payee.nVotes);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
std::string CMasternodePayments::GetRequiredPaymentsString(int nBlockHeight)
|
|
{
|
|
LOCK(cs_mapMasternodeBlocks);
|
|
|
|
if (mapMasternodeBlocks.count(nBlockHeight)) {
|
|
return mapMasternodeBlocks[nBlockHeight].GetRequiredPaymentsString();
|
|
}
|
|
|
|
return "Unknown";
|
|
}
|
|
|
|
bool CMasternodePayments::IsTransactionValid(const CTransaction& txNew, int nBlockHeight)
|
|
{
|
|
LOCK(cs_mapMasternodeBlocks);
|
|
|
|
if (mapMasternodeBlocks.count(nBlockHeight)) {
|
|
return mapMasternodeBlocks[nBlockHeight].IsTransactionValid(txNew);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void CMasternodePayments::CleanPaymentList()
|
|
{
|
|
LOCK2(cs_mapMasternodePayeeVotes, cs_mapMasternodeBlocks);
|
|
|
|
int nHeight;
|
|
{
|
|
TRY_LOCK(cs_main, locked);
|
|
if (!locked || chainActive.Tip() == nullptr) {
|
|
return;
|
|
}
|
|
nHeight = chainActive.Tip()->nHeight;
|
|
}
|
|
|
|
// keep up to five cycles for historical sake
|
|
const int nLimit = std::max(static_cast<int>(mnodeman.size() * 1.25), 1000);
|
|
|
|
std::map<uint256, CMasternodePaymentWinner>::iterator it = mapMasternodePayeeVotes.begin();
|
|
while (it != mapMasternodePayeeVotes.end()) {
|
|
const CMasternodePaymentWinner& winner = (*it).second;
|
|
|
|
if (nHeight - winner.nBlockHeight > nLimit) {
|
|
LogPrint("mnpayments", "CMasternodePayments::CleanPaymentList - Removing old Masternode payment - block %d\n", winner.nBlockHeight);
|
|
masternodeSync.mapSeenSyncMNW.erase((*it).first);
|
|
mapMasternodePayeeVotes.erase(it++);
|
|
mapMasternodeBlocks.erase(winner.nBlockHeight);
|
|
} else {
|
|
++it;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool CMasternodePaymentWinner::IsValid(CNode* pnode, std::string& strError)
|
|
{
|
|
CMasternode* pmn = mnodeman.Find(vinMasternode);
|
|
|
|
if (!pmn) {
|
|
strError = strprintf("Unknown Masternode %s", vinMasternode.prevout.hash.ToString());
|
|
LogPrint("masternode", "CMasternodePaymentWinner::IsValid - %s\n", strError);
|
|
mnodeman.AskForMN(pnode, vinMasternode);
|
|
return false;
|
|
}
|
|
|
|
if (pmn->protocolVersion < ActiveProtocol()) {
|
|
strError = strprintf("Masternode protocol too old %d - req %d", pmn->protocolVersion, ActiveProtocol());
|
|
LogPrint("masternode", "CMasternodePaymentWinner::IsValid - %s\n", strError);
|
|
return false;
|
|
}
|
|
|
|
const int n = mnodeman.GetMasternodeRank(vinMasternode, nBlockHeight - 100, ActiveProtocol());
|
|
|
|
if (n > MNPAYMENTS_SIGNATURES_TOTAL) {
|
|
// It's common to have masternodes mistakenly think they are in the top 10.
|
|
// We don't want to print all of these messages, or punish them unless they're way off.
|
|
if (n > MNPAYMENTS_SIGNATURES_TOTAL * 2) {
|
|
strError = strprintf("Masternode not in the top %d (%d)", MNPAYMENTS_SIGNATURES_TOTAL * 2, n);
|
|
LogPrint("masternode", "CMasternodePaymentWinner::IsValid - %s\n", strError);
|
|
// if (masternodeSync.IsSynced()) Misbehaving(pnode->GetId(), 20);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CMasternodePayments::ProcessBlock(int nBlockHeight)
|
|
{
|
|
if (!fMasterNode) {
|
|
return false;
|
|
}
|
|
|
|
// reference node - hybrid mode
|
|
const int n = mnodeman.GetMasternodeRank(activeMasternode.vin, nBlockHeight - 100, ActiveProtocol());
|
|
|
|
if (n == -1) {
|
|
LogPrint("mnpayments", "CMasternodePayments::ProcessBlock - Unknown Masternode\n");
|
|
return false;
|
|
}
|
|
|
|
if (n > MNPAYMENTS_SIGNATURES_TOTAL) {
|
|
LogPrint("mnpayments", "CMasternodePayments::ProcessBlock - Masternode not in the top %d (%d)\n", MNPAYMENTS_SIGNATURES_TOTAL, n);
|
|
return false;
|
|
}
|
|
|
|
if (nBlockHeight <= nLastBlockHeight) {
|
|
return false;
|
|
}
|
|
|
|
CMasternodePaymentWinner newWinner(activeMasternode.vin);
|
|
|
|
if (budget.IsBudgetPaymentBlock(nBlockHeight)) {
|
|
// budget payment block -- handled by the budgeting software
|
|
} else {
|
|
LogPrint("masternode", "CMasternodePayments::ProcessBlock() Start nHeight %d - vin %s. \n",
|
|
nBlockHeight, activeMasternode.vin.prevout.hash.ToString());
|
|
|
|
// pay to the oldest MN that still had no payment but its input is old enough and it was active long enough
|
|
int nCount = 0;
|
|
CMasternode* pmn = mnodeman.GetNextMasternodeInQueueForPayment(nBlockHeight, true, nCount);
|
|
|
|
if (pmn != nullptr) {
|
|
LogPrint("masternode", "CMasternodePayments::ProcessBlock() Found by FindOldestNotInVec \n");
|
|
|
|
newWinner.nBlockHeight = nBlockHeight;
|
|
|
|
const CScript payee = GetScriptForDestination(pmn->pubKeyCollateralAddress.GetID());
|
|
newWinner.AddPayee(payee);
|
|
|
|
CTxDestination address1;
|
|
ExtractDestination(payee, address1);
|
|
CBitcoinAddress address2(address1);
|
|
|
|
LogPrint("masternode", "CMasternodePayments::ProcessBlock() Winner payee %s nHeight %d. \n",
|
|
address2.ToString().c_str(), newWinner.nBlockHeight);
|
|
} else {
|
|
LogPrint("masternode", "CMasternodePayments::ProcessBlock() Failed to find masternode to pay\n");
|
|
}
|
|
}
|
|
|
|
std::string errorMessage;
|
|
CPubKey pubKeyMasternode;
|
|
CKey keyMasternode;
|
|
|
|
if (!obfuScationSigner.SetKey(strMasterNodePrivKey, errorMessage, keyMasternode, pubKeyMasternode)) {
|
|
LogPrint("masternode", "CMasternodePayments::ProcessBlock() - Error upon calling SetKey: %s\n", errorMessage.c_str());
|
|
return false;
|
|
}
|
|
|
|
LogPrint("masternode", "CMasternodePayments::ProcessBlock() - Signing Winner\n");
|
|
if (newWinner.Sign(keyMasternode, pubKeyMasternode)) {
|
|
LogPrint("masternode", "CMasternodePayments::ProcessBlock() - AddWinningMasternode\n");
|
|
|
|
if (AddWinningMasternode(newWinner)) {
|
|
newWinner.Relay();
|
|
nLastBlockHeight = nBlockHeight;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void CMasternodePaymentWinner::Relay()
|
|
{
|
|
CInv inv(MSG_MASTERNODE_WINNER, GetHash());
|
|
RelayInv(inv);
|
|
}
|
|
|
|
bool CMasternodePaymentWinner::SignatureValid()
|
|
{
|
|
CMasternode* pmn = mnodeman.Find(vinMasternode);
|
|
|
|
if (pmn != nullptr) {
|
|
const std::string strMessage =
|
|
vinMasternode.prevout.ToStringShort() + std::to_string(nBlockHeight) + payee.ToString();
|
|
|
|
std::string errorMessage;
|
|
if (!obfuScationSigner.VerifyMessage(pmn->pubKeyMasternode, vchSig, strMessage, errorMessage)) {
|
|
return error("CMasternodePaymentWinner::SignatureValid() - Got bad Masternode address signature %s\n",
|
|
vinMasternode.prevout.hash.ToString());
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void CMasternodePayments::Sync(CNode* node, int nCountNeeded)
|
|
{
|
|
LOCK(cs_mapMasternodePayeeVotes);
|
|
|
|
int nHeight;
|
|
{
|
|
TRY_LOCK(cs_main, locked);
|
|
if (!locked || chainActive.Tip() == nullptr) {
|
|
return;
|
|
}
|
|
nHeight = chainActive.Tip()->nHeight;
|
|
}
|
|
|
|
int nCount = static_cast<int>(mnodeman.CountEnabled() * 1.25);
|
|
if (nCountNeeded > nCount) {
|
|
nCountNeeded = nCount;
|
|
}
|
|
|
|
int nInvCount = 0;
|
|
std::map<uint256, CMasternodePaymentWinner>::iterator it = mapMasternodePayeeVotes.begin();
|
|
while (it != mapMasternodePayeeVotes.end()) {
|
|
const CMasternodePaymentWinner& winner = (*it).second;
|
|
if (winner.nBlockHeight >= nHeight - nCountNeeded && winner.nBlockHeight <= nHeight + 20) {
|
|
node->PushInventory(CInv(MSG_MASTERNODE_WINNER, winner.GetHash()));
|
|
nInvCount++;
|
|
}
|
|
++it;
|
|
}
|
|
|
|
node->PushMessage("ssc", MASTERNODE_SYNC_MNW, nInvCount);
|
|
}
|
|
|
|
std::string CMasternodePayments::ToString() const
|
|
{
|
|
std::ostringstream info;
|
|
info << "Votes: " << (int)mapMasternodePayeeVotes.size() << ", Blocks: " << (int)mapMasternodeBlocks.size();
|
|
return info.str();
|
|
}
|
|
|
|
int CMasternodePayments::GetOldestBlock()
|
|
{
|
|
LOCK(cs_mapMasternodeBlocks);
|
|
|
|
int nOldestBlock = std::numeric_limits<int>::max();
|
|
|
|
std::map<int, CMasternodeBlockPayees>::iterator it = mapMasternodeBlocks.begin();
|
|
while (it != mapMasternodeBlocks.end()) {
|
|
if ((*it).first < nOldestBlock) {
|
|
nOldestBlock = (*it).first;
|
|
}
|
|
++it;
|
|
}
|
|
|
|
return nOldestBlock;
|
|
}
|
|
|
|
int CMasternodePayments::GetNewestBlock()
|
|
{
|
|
LOCK(cs_mapMasternodeBlocks);
|
|
|
|
int nNewestBlock = 0;
|
|
|
|
std::map<int, CMasternodeBlockPayees>::iterator it = mapMasternodeBlocks.begin();
|
|
while (it != mapMasternodeBlocks.end()) {
|
|
if ((*it).first > nNewestBlock) {
|
|
nNewestBlock = (*it).first;
|
|
}
|
|
++it;
|
|
}
|
|
|
|
return nNewestBlock;
|
|
}
|