Split masternode and payments code

This commit is contained in:
Evan Duffield 2015-04-16 12:58:09 -07:00
parent 88f6a598b9
commit d25cf1af22
10 changed files with 477 additions and 431 deletions

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@ -107,6 +107,7 @@ BITCOIN_CORE_H = \
limitedmap.h \
main.h \
masternode.h \
masternode-payments.h \
masternode-pos.h \
masternodeman.h \
masternodeconfig.h \
@ -278,6 +279,7 @@ libbitcoin_common_a_SOURCES = \
darksend.cpp \
darksend-relay.cpp \
masternode.cpp \
masternode-payments.cpp \
masternode-pos.cpp \
masternodeman.cpp \
masternodeconfig.cpp \

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@ -9,6 +9,7 @@
#include "sync.h"
#include "activemasternode.h"
#include "masternodeman.h"
#include "masternode-payments.h"
#include "darksend-relay.h"
class CTxIn;

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@ -24,6 +24,7 @@
#include "ui_interface.h"
#include "util.h"
#include "activemasternode.h"
#include "masternode-payments.h"
#include "masternodeman.h"
#include "spork.h"
#include "utilmoneystr.h"

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@ -15,6 +15,7 @@
#include "instantx.h"
#include "darksend.h"
#include "masternodeman.h"
#include "masternode-payments.h"
#include "merkleblock.h"
#include "net.h"
#include "pow.h"

359
src/masternode-payments.cpp Normal file
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@ -0,0 +1,359 @@
// Copyright (c) 2014-2015 The Dash developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "masternode-payments.h"
#include "masternodeman.h"
#include "darksend.h"
#include "util.h"
#include "sync.h"
#include "addrman.h"
#include <boost/lexical_cast.hpp>
CCriticalSection cs_masternodepayments;
/** Object for who's going to get paid on which blocks */
CMasternodePayments masternodePayments;
// keep track of Masternode votes I've seen
map<uint256, CMasternodePaymentWinner> mapSeenMasternodeVotes;
void ProcessMessageMasternodePayments(CNode* pfrom, std::string& strCommand, CDataStream& vRecv)
{
if(IsInitialBlockDownload()) return;
if (strCommand == "mnget") { //Masternode Payments Request Sync
if(fLiteMode) return; //disable all Darksend/Masternode related functionality
if(pfrom->HasFulfilledRequest("mnget")) {
LogPrintf("mnget - peer already asked me for the list\n");
Misbehaving(pfrom->GetId(), 20);
return;
}
pfrom->FulfilledRequest("mnget");
masternodePayments.Sync(pfrom);
LogPrintf("mnget - Sent Masternode winners to %s\n", pfrom->addr.ToString().c_str());
}
else if (strCommand == "mnw") { //Masternode Payments Declare Winner
LOCK(cs_masternodepayments);
//this is required in litemode
CMasternodePaymentWinner winner;
vRecv >> winner;
if(chainActive.Tip() == NULL) return;
CTxDestination address1;
ExtractDestination(winner.payee, address1);
CBitcoinAddress address2(address1);
uint256 hash = winner.GetHash();
if(mapSeenMasternodeVotes.count(hash)) {
if(fDebug) LogPrintf("mnw - seen vote %s Addr %s Height %d bestHeight %d\n", hash.ToString().c_str(), address2.ToString().c_str(), winner.nBlockHeight, chainActive.Tip()->nHeight);
return;
}
if(winner.nBlockHeight < chainActive.Tip()->nHeight - 10 || winner.nBlockHeight > chainActive.Tip()->nHeight+20){
LogPrintf("mnw - winner out of range %s Addr %s Height %d bestHeight %d\n", winner.vin.ToString().c_str(), address2.ToString().c_str(), winner.nBlockHeight, chainActive.Tip()->nHeight);
return;
}
if(winner.vin.nSequence != std::numeric_limits<unsigned int>::max()){
LogPrintf("mnw - invalid nSequence\n");
Misbehaving(pfrom->GetId(), 100);
return;
}
LogPrintf("mnw - winning vote - Vin %s Addr %s Height %d bestHeight %d\n", winner.vin.ToString().c_str(), address2.ToString().c_str(), winner.nBlockHeight, chainActive.Tip()->nHeight);
if(!masternodePayments.CheckSignature(winner)){
LogPrintf("mnw - invalid signature\n");
Misbehaving(pfrom->GetId(), 100);
return;
}
mapSeenMasternodeVotes.insert(make_pair(hash, winner));
if(masternodePayments.AddWinningMasternode(winner)){
masternodePayments.Relay(winner);
}
}
}
bool CMasternodePayments::CheckSignature(CMasternodePaymentWinner& winner)
{
//note: need to investigate why this is failing
std::string strMessage = winner.vin.ToString().c_str() + boost::lexical_cast<std::string>(winner.nBlockHeight) + winner.payee.ToString();
CPubKey pubkey(ParseHex(Params().MasternodePaymentPubKey()));
std::string errorMessage = "";
if(!darkSendSigner.VerifyMessage(pubkey, winner.vchSig, strMessage, errorMessage)){
return false;
}
return true;
}
bool CMasternodePayments::Sign(CMasternodePaymentWinner& winner)
{
std::string strMessage = winner.vin.ToString().c_str() + boost::lexical_cast<std::string>(winner.nBlockHeight) + winner.payee.ToString();
CKey key2;
CPubKey pubkey2;
std::string errorMessage = "";
if(!darkSendSigner.SetKey(strMasterPrivKey, errorMessage, key2, pubkey2))
{
LogPrintf("CMasternodePayments::Sign - ERROR: Invalid Masternodeprivkey: '%s'\n", errorMessage.c_str());
return false;
}
if(!darkSendSigner.SignMessage(strMessage, errorMessage, winner.vchSig, key2)) {
LogPrintf("CMasternodePayments::Sign - Sign message failed");
return false;
}
if(!darkSendSigner.VerifyMessage(pubkey2, winner.vchSig, strMessage, errorMessage)) {
LogPrintf("CMasternodePayments::Sign - Verify message failed");
return false;
}
return true;
}
uint64_t CMasternodePayments::CalculateScore(uint256 blockHash, CTxIn& vin)
{
uint256 n1 = blockHash;
uint256 n2 = HashX11(BEGIN(n1), END(n1));
uint256 n3 = HashX11(BEGIN(vin.prevout.hash), END(vin.prevout.hash));
uint256 n4 = n3 > n2 ? (n3 - n2) : (n2 - n3);
//printf(" -- CMasternodePayments CalculateScore() n2 = %d \n", n2.Get64());
//printf(" -- CMasternodePayments CalculateScore() n3 = %d \n", n3.Get64());
//printf(" -- CMasternodePayments CalculateScore() n4 = %d \n", n4.Get64());
return n4.Get64();
}
bool CMasternodePayments::GetBlockPayee(int nBlockHeight, CScript& payee)
{
BOOST_FOREACH(CMasternodePaymentWinner& winner, vWinning){
if(winner.nBlockHeight == nBlockHeight) {
payee = winner.payee;
return true;
}
}
return false;
}
bool CMasternodePayments::GetWinningMasternode(int nBlockHeight, CTxIn& vinOut)
{
BOOST_FOREACH(CMasternodePaymentWinner& winner, vWinning){
if(winner.nBlockHeight == nBlockHeight) {
vinOut = winner.vin;
return true;
}
}
return false;
}
bool CMasternodePayments::AddWinningMasternode(CMasternodePaymentWinner& winnerIn)
{
uint256 blockHash = 0;
if(!GetBlockHash(blockHash, winnerIn.nBlockHeight-576)) {
return false;
}
winnerIn.score = CalculateScore(blockHash, winnerIn.vin);
bool foundBlock = false;
BOOST_FOREACH(CMasternodePaymentWinner& winner, vWinning){
if(winner.nBlockHeight == winnerIn.nBlockHeight) {
foundBlock = true;
if(winner.score < winnerIn.score){
winner.score = winnerIn.score;
winner.vin = winnerIn.vin;
winner.payee = winnerIn.payee;
winner.vchSig = winnerIn.vchSig;
mapSeenMasternodeVotes.insert(make_pair(winnerIn.GetHash(), winnerIn));
return true;
}
}
}
// if it's not in the vector
if(!foundBlock){
vWinning.push_back(winnerIn);
mapSeenMasternodeVotes.insert(make_pair(winnerIn.GetHash(), winnerIn));
return true;
}
return false;
}
void CMasternodePayments::CleanPaymentList()
{
LOCK(cs_masternodepayments);
if(chainActive.Tip() == NULL) return;
int nLimit = std::max(((int)mnodeman.size())*2, 1000);
vector<CMasternodePaymentWinner>::iterator it;
for(it=vWinning.begin();it<vWinning.end();it++){
if(chainActive.Tip()->nHeight - (*it).nBlockHeight > nLimit){
if(fDebug) LogPrintf("CMasternodePayments::CleanPaymentList - Removing old Masternode payment - block %d\n", (*it).nBlockHeight);
vWinning.erase(it);
break;
}
}
}
bool CMasternodePayments::ProcessBlock(int nBlockHeight)
{
LOCK(cs_masternodepayments);
if(nBlockHeight <= nLastBlockHeight) return false;
if(!enabled) return false;
CMasternodePaymentWinner newWinner;
int nMinimumAge = mnodeman.CountEnabled();
CScript payeeSource;
uint256 hash;
if(!GetBlockHash(hash, nBlockHeight-10)) return false;
unsigned int nHash;
memcpy(&nHash, &hash, 2);
LogPrintf(" ProcessBlock Start nHeight %d. \n", nBlockHeight);
std::vector<CTxIn> vecLastPayments;
BOOST_REVERSE_FOREACH(CMasternodePaymentWinner& winner, vWinning)
{
//if we already have the same vin - we have one full payment cycle, break
if(vecLastPayments.size() > nMinimumAge) break;
vecLastPayments.push_back(winner.vin);
}
// pay to the oldest MN that still had no payment but its input is old enough and it was active long enough
CMasternode *pmn = mnodeman.FindOldestNotInVec(vecLastPayments, nMinimumAge);
if(pmn != NULL)
{
LogPrintf(" Found by FindOldestNotInVec \n");
newWinner.score = 0;
newWinner.nBlockHeight = nBlockHeight;
newWinner.vin = pmn->vin;
pmn->nLastPaid = GetAdjustedTime();
if(pmn->donationPercentage > 0 && (nHash % 100) <= (unsigned int)pmn->donationPercentage) {
newWinner.payee = pmn->donationAddress;
} else {
newWinner.payee = GetScriptForDestination(pmn->pubkey.GetID());
}
payeeSource = GetScriptForDestination(pmn->pubkey.GetID());
}
//if we can't find new MN to get paid, pick first active MN counting back from the end of vecLastPayments list
if(newWinner.nBlockHeight == 0 && nMinimumAge > 0)
{
LogPrintf(" Find by reverse \n");
BOOST_REVERSE_FOREACH(CTxIn& vinLP, vecLastPayments)
{
CMasternode* pmn = mnodeman.Find(vinLP);
if(pmn != NULL)
{
pmn->Check();
if(!pmn->IsEnabled()) continue;
newWinner.score = 0;
newWinner.nBlockHeight = nBlockHeight;
newWinner.vin = pmn->vin;
pmn->nLastPaid = GetAdjustedTime();
if(pmn->donationPercentage > 0 && (nHash % 100) <= (unsigned int)pmn->donationPercentage) {
newWinner.payee = pmn->donationAddress;
} else {
newWinner.payee = GetScriptForDestination(pmn->pubkey.GetID());
}
payeeSource = GetScriptForDestination(pmn->pubkey.GetID());
break; // we found active MN
}
}
}
if(newWinner.nBlockHeight == 0) return false;
CTxDestination address1;
ExtractDestination(newWinner.payee, address1);
CBitcoinAddress address2(address1);
CTxDestination address3;
ExtractDestination(payeeSource, address3);
CBitcoinAddress address4(address3);
LogPrintf("Winner payee %s nHeight %d vin source %s. \n", address2.ToString().c_str(), newWinner.nBlockHeight, address4.ToString().c_str());
if(Sign(newWinner))
{
if(AddWinningMasternode(newWinner))
{
Relay(newWinner);
nLastBlockHeight = nBlockHeight;
return true;
}
}
return false;
}
void CMasternodePayments::Relay(CMasternodePaymentWinner& winner)
{
CInv inv(MSG_MASTERNODE_WINNER, winner.GetHash());
vector<CInv> vInv;
vInv.push_back(inv);
LOCK(cs_vNodes);
BOOST_FOREACH(CNode* pnode, vNodes){
pnode->PushMessage("inv", vInv);
}
}
void CMasternodePayments::Sync(CNode* node)
{
LOCK(cs_masternodepayments);
BOOST_FOREACH(CMasternodePaymentWinner& winner, vWinning)
if(winner.nBlockHeight >= chainActive.Tip()->nHeight-10 && winner.nBlockHeight <= chainActive.Tip()->nHeight + 20)
node->PushMessage("mnw", winner);
}
bool CMasternodePayments::SetPrivKey(std::string strPrivKey)
{
CMasternodePaymentWinner winner;
// Test signing successful, proceed
strMasterPrivKey = strPrivKey;
Sign(winner);
if(CheckSignature(winner)){
LogPrintf("CMasternodePayments::SetPrivKey - Successfully initialized as Masternode payments master\n");
enabled = true;
return true;
} else {
return false;
}
}

109
src/masternode-payments.h Normal file
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@ -0,0 +1,109 @@
// Copyright (c) 2014-2015 The Dash developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef MASTERNODE_PAYMENTS_H
#define MASTERNODE_PAYMENTS_H
#include "sync.h"
#include "net.h"
#include "key.h"
#include "util.h"
#include "base58.h"
#include "main.h"
#include "masternode.h"
#include "masternode-pos.h"
#include "timedata.h"
using namespace std;
class CMasternodePayments;
class CMasternodePaymentWinner;
extern CMasternodePayments masternodePayments;
extern map<uint256, CMasternodePaymentWinner> mapSeenMasternodeVotes;
void ProcessMessageMasternodePayments(CNode* pfrom, std::string& strCommand, CDataStream& vRecv);
// for storing the winning payments
class CMasternodePaymentWinner
{
public:
int nBlockHeight;
CTxIn vin;
CScript payee;
std::vector<unsigned char> vchSig;
uint64_t score;
CMasternodePaymentWinner() {
nBlockHeight = 0;
score = 0;
vin = CTxIn();
payee = CScript();
}
uint256 GetHash(){
uint256 n2 = HashX11(BEGIN(nBlockHeight), END(nBlockHeight));
uint256 n3 = vin.prevout.hash > n2 ? (vin.prevout.hash - n2) : (n2 - vin.prevout.hash);
return n3;
}
ADD_SERIALIZE_METHODS;
template <typename Stream, typename Operation>
inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
READWRITE(nBlockHeight);
READWRITE(payee);
READWRITE(vin);
READWRITE(score);
READWRITE(vchSig);
}
};
//
// Masternode Payments Class
// Keeps track of who should get paid for which blocks
//
class CMasternodePayments
{
private:
std::vector<CMasternodePaymentWinner> vWinning;
int nSyncedFromPeer;
std::string strMasterPrivKey;
bool enabled;
int nLastBlockHeight;
public:
CMasternodePayments() {
enabled = false;
}
bool SetPrivKey(std::string strPrivKey);
bool CheckSignature(CMasternodePaymentWinner& winner);
bool Sign(CMasternodePaymentWinner& winner);
// Deterministically calculate a given "score" for a masternode depending on how close it's hash is
// to the blockHeight. The further away they are the better, the furthest will win the election
// and get paid this block
//
uint64_t CalculateScore(uint256 blockHash, CTxIn& vin);
bool GetWinningMasternode(int nBlockHeight, CTxIn& vinOut);
bool AddWinningMasternode(CMasternodePaymentWinner& winner);
bool ProcessBlock(int nBlockHeight);
void Relay(CMasternodePaymentWinner& winner);
void Sync(CNode* node);
void CleanPaymentList();
int LastPayment(CMasternode& mn);
//slow
bool GetBlockPayee(int nBlockHeight, CScript& payee);
};
#endif

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@ -10,80 +10,11 @@
#include "addrman.h"
#include <boost/lexical_cast.hpp>
CCriticalSection cs_masternodepayments;
/** Object for who's going to get paid on which blocks */
CMasternodePayments masternodePayments;
// keep track of Masternode votes I've seen
map<uint256, CMasternodePaymentWinner> mapSeenMasternodeVotes;
// keep track of the scanning errors I've seen
map<uint256, int> mapSeenMasternodeScanningErrors;
// cache block hashes as we calculate them
std::map<int64_t, uint256> mapCacheBlockHashes;
void ProcessMessageMasternodePayments(CNode* pfrom, std::string& strCommand, CDataStream& vRecv)
{
if(IsInitialBlockDownload()) return;
if (strCommand == "mnget") { //Masternode Payments Request Sync
if(fLiteMode) return; //disable all Darksend/Masternode related functionality
if(pfrom->HasFulfilledRequest("mnget")) {
LogPrintf("mnget - peer already asked me for the list\n");
Misbehaving(pfrom->GetId(), 20);
return;
}
pfrom->FulfilledRequest("mnget");
masternodePayments.Sync(pfrom);
LogPrintf("mnget - Sent Masternode winners to %s\n", pfrom->addr.ToString().c_str());
}
else if (strCommand == "mnw") { //Masternode Payments Declare Winner
LOCK(cs_masternodepayments);
//this is required in litemode
CMasternodePaymentWinner winner;
vRecv >> winner;
if(chainActive.Tip() == NULL) return;
CTxDestination address1;
ExtractDestination(winner.payee, address1);
CBitcoinAddress address2(address1);
uint256 hash = winner.GetHash();
if(mapSeenMasternodeVotes.count(hash)) {
if(fDebug) LogPrintf("mnw - seen vote %s Addr %s Height %d bestHeight %d\n", hash.ToString().c_str(), address2.ToString().c_str(), winner.nBlockHeight, chainActive.Tip()->nHeight);
return;
}
if(winner.nBlockHeight < chainActive.Tip()->nHeight - 10 || winner.nBlockHeight > chainActive.Tip()->nHeight+20){
LogPrintf("mnw - winner out of range %s Addr %s Height %d bestHeight %d\n", winner.vin.ToString().c_str(), address2.ToString().c_str(), winner.nBlockHeight, chainActive.Tip()->nHeight);
return;
}
if(winner.vin.nSequence != std::numeric_limits<unsigned int>::max()){
LogPrintf("mnw - invalid nSequence\n");
Misbehaving(pfrom->GetId(), 100);
return;
}
LogPrintf("mnw - winning vote - Vin %s Addr %s Height %d bestHeight %d\n", winner.vin.ToString().c_str(), address2.ToString().c_str(), winner.nBlockHeight, chainActive.Tip()->nHeight);
if(!masternodePayments.CheckSignature(winner)){
LogPrintf("mnw - invalid signature\n");
Misbehaving(pfrom->GetId(), 100);
return;
}
mapSeenMasternodeVotes.insert(make_pair(hash, winner));
if(masternodePayments.AddWinningMasternode(winner)){
masternodePayments.Relay(winner);
}
}
}
struct CompareValueOnly
{
@ -277,280 +208,4 @@ void CMasternode::Check()
}
activeState = MASTERNODE_ENABLED; // OK
}
bool CMasternodePayments::CheckSignature(CMasternodePaymentWinner& winner)
{
//note: need to investigate why this is failing
std::string strMessage = winner.vin.ToString().c_str() + boost::lexical_cast<std::string>(winner.nBlockHeight) + winner.payee.ToString();
CPubKey pubkey(ParseHex(Params().MasternodePaymentPubKey()));
std::string errorMessage = "";
if(!darkSendSigner.VerifyMessage(pubkey, winner.vchSig, strMessage, errorMessage)){
return false;
}
return true;
}
bool CMasternodePayments::Sign(CMasternodePaymentWinner& winner)
{
std::string strMessage = winner.vin.ToString().c_str() + boost::lexical_cast<std::string>(winner.nBlockHeight) + winner.payee.ToString();
CKey key2;
CPubKey pubkey2;
std::string errorMessage = "";
if(!darkSendSigner.SetKey(strMasterPrivKey, errorMessage, key2, pubkey2))
{
LogPrintf("CMasternodePayments::Sign - ERROR: Invalid Masternodeprivkey: '%s'\n", errorMessage.c_str());
return false;
}
if(!darkSendSigner.SignMessage(strMessage, errorMessage, winner.vchSig, key2)) {
LogPrintf("CMasternodePayments::Sign - Sign message failed");
return false;
}
if(!darkSendSigner.VerifyMessage(pubkey2, winner.vchSig, strMessage, errorMessage)) {
LogPrintf("CMasternodePayments::Sign - Verify message failed");
return false;
}
return true;
}
uint64_t CMasternodePayments::CalculateScore(uint256 blockHash, CTxIn& vin)
{
uint256 n1 = blockHash;
uint256 n2 = HashX11(BEGIN(n1), END(n1));
uint256 n3 = HashX11(BEGIN(vin.prevout.hash), END(vin.prevout.hash));
uint256 n4 = n3 > n2 ? (n3 - n2) : (n2 - n3);
//printf(" -- CMasternodePayments CalculateScore() n2 = %d \n", n2.Get64());
//printf(" -- CMasternodePayments CalculateScore() n3 = %d \n", n3.Get64());
//printf(" -- CMasternodePayments CalculateScore() n4 = %d \n", n4.Get64());
return n4.Get64();
}
bool CMasternodePayments::GetBlockPayee(int nBlockHeight, CScript& payee)
{
BOOST_FOREACH(CMasternodePaymentWinner& winner, vWinning){
if(winner.nBlockHeight == nBlockHeight) {
payee = winner.payee;
return true;
}
}
return false;
}
bool CMasternodePayments::GetWinningMasternode(int nBlockHeight, CTxIn& vinOut)
{
BOOST_FOREACH(CMasternodePaymentWinner& winner, vWinning){
if(winner.nBlockHeight == nBlockHeight) {
vinOut = winner.vin;
return true;
}
}
return false;
}
bool CMasternodePayments::AddWinningMasternode(CMasternodePaymentWinner& winnerIn)
{
uint256 blockHash = 0;
if(!GetBlockHash(blockHash, winnerIn.nBlockHeight-576)) {
return false;
}
winnerIn.score = CalculateScore(blockHash, winnerIn.vin);
bool foundBlock = false;
BOOST_FOREACH(CMasternodePaymentWinner& winner, vWinning){
if(winner.nBlockHeight == winnerIn.nBlockHeight) {
foundBlock = true;
if(winner.score < winnerIn.score){
winner.score = winnerIn.score;
winner.vin = winnerIn.vin;
winner.payee = winnerIn.payee;
winner.vchSig = winnerIn.vchSig;
mapSeenMasternodeVotes.insert(make_pair(winnerIn.GetHash(), winnerIn));
return true;
}
}
}
// if it's not in the vector
if(!foundBlock){
vWinning.push_back(winnerIn);
mapSeenMasternodeVotes.insert(make_pair(winnerIn.GetHash(), winnerIn));
return true;
}
return false;
}
void CMasternodePayments::CleanPaymentList()
{
LOCK(cs_masternodepayments);
if(chainActive.Tip() == NULL) return;
int nLimit = std::max(((int)mnodeman.size())*2, 1000);
vector<CMasternodePaymentWinner>::iterator it;
for(it=vWinning.begin();it<vWinning.end();it++){
if(chainActive.Tip()->nHeight - (*it).nBlockHeight > nLimit){
if(fDebug) LogPrintf("CMasternodePayments::CleanPaymentList - Removing old Masternode payment - block %d\n", (*it).nBlockHeight);
vWinning.erase(it);
break;
}
}
}
bool CMasternodePayments::ProcessBlock(int nBlockHeight)
{
LOCK(cs_masternodepayments);
if(nBlockHeight <= nLastBlockHeight) return false;
if(!enabled) return false;
CMasternodePaymentWinner newWinner;
int nMinimumAge = mnodeman.CountEnabled();
CScript payeeSource;
uint256 hash;
if(!GetBlockHash(hash, nBlockHeight-10)) return false;
unsigned int nHash;
memcpy(&nHash, &hash, 2);
LogPrintf(" ProcessBlock Start nHeight %d. \n", nBlockHeight);
std::vector<CTxIn> vecLastPayments;
BOOST_REVERSE_FOREACH(CMasternodePaymentWinner& winner, vWinning)
{
//if we already have the same vin - we have one full payment cycle, break
if(vecLastPayments.size() > nMinimumAge) break;
vecLastPayments.push_back(winner.vin);
}
// pay to the oldest MN that still had no payment but its input is old enough and it was active long enough
CMasternode *pmn = mnodeman.FindOldestNotInVec(vecLastPayments, nMinimumAge);
if(pmn != NULL)
{
LogPrintf(" Found by FindOldestNotInVec \n");
newWinner.score = 0;
newWinner.nBlockHeight = nBlockHeight;
newWinner.vin = pmn->vin;
pmn->nLastPaid = GetAdjustedTime();
if(pmn->donationPercentage > 0 && (nHash % 100) <= (unsigned int)pmn->donationPercentage) {
newWinner.payee = pmn->donationAddress;
} else {
newWinner.payee = GetScriptForDestination(pmn->pubkey.GetID());
}
payeeSource = GetScriptForDestination(pmn->pubkey.GetID());
}
//if we can't find new MN to get paid, pick first active MN counting back from the end of vecLastPayments list
if(newWinner.nBlockHeight == 0 && nMinimumAge > 0)
{
LogPrintf(" Find by reverse \n");
BOOST_REVERSE_FOREACH(CTxIn& vinLP, vecLastPayments)
{
CMasternode* pmn = mnodeman.Find(vinLP);
if(pmn != NULL)
{
pmn->Check();
if(!pmn->IsEnabled()) continue;
newWinner.score = 0;
newWinner.nBlockHeight = nBlockHeight;
newWinner.vin = pmn->vin;
pmn->nLastPaid = GetAdjustedTime();
if(pmn->donationPercentage > 0 && (nHash % 100) <= (unsigned int)pmn->donationPercentage) {
newWinner.payee = pmn->donationAddress;
} else {
newWinner.payee = GetScriptForDestination(pmn->pubkey.GetID());
}
payeeSource = GetScriptForDestination(pmn->pubkey.GetID());
break; // we found active MN
}
}
}
if(newWinner.nBlockHeight == 0) return false;
CTxDestination address1;
ExtractDestination(newWinner.payee, address1);
CBitcoinAddress address2(address1);
CTxDestination address3;
ExtractDestination(payeeSource, address3);
CBitcoinAddress address4(address3);
LogPrintf("Winner payee %s nHeight %d vin source %s. \n", address2.ToString().c_str(), newWinner.nBlockHeight, address4.ToString().c_str());
if(Sign(newWinner))
{
if(AddWinningMasternode(newWinner))
{
Relay(newWinner);
nLastBlockHeight = nBlockHeight;
return true;
}
}
return false;
}
void CMasternodePayments::Relay(CMasternodePaymentWinner& winner)
{
CInv inv(MSG_MASTERNODE_WINNER, winner.GetHash());
vector<CInv> vInv;
vInv.push_back(inv);
LOCK(cs_vNodes);
BOOST_FOREACH(CNode* pnode, vNodes){
pnode->PushMessage("inv", vInv);
}
}
void CMasternodePayments::Sync(CNode* node)
{
LOCK(cs_masternodepayments);
BOOST_FOREACH(CMasternodePaymentWinner& winner, vWinning)
if(winner.nBlockHeight >= chainActive.Tip()->nHeight-10 && winner.nBlockHeight <= chainActive.Tip()->nHeight + 20)
node->PushMessage("mnw", winner);
}
bool CMasternodePayments::SetPrivKey(std::string strPrivKey)
{
CMasternodePaymentWinner winner;
// Test signing successful, proceed
strMasterPrivKey = strPrivKey;
Sign(winner);
if(CheckSignature(winner)){
LogPrintf("CMasternodePayments::SetPrivKey - Successfully initialized as Masternode payments master\n");
enabled = true;
return true;
} else {
return false;
}
}
}

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@ -11,6 +11,7 @@
#include "util.h"
#include "base58.h"
#include "main.h"
#include "masternode.h"
#include "masternode-pos.h"
#include "timedata.h"
@ -34,14 +35,8 @@
using namespace std;
class CMasternode;
class CMasternodePayments;
class CMasternodePaymentWinner;
extern CMasternodePayments masternodePayments;
extern map<uint256, CMasternodePaymentWinner> mapSeenMasternodeVotes;
extern map<int64_t, uint256> mapCacheBlockHashes;
void ProcessMessageMasternodePayments(CNode* pfrom, std::string& strCommand, CDataStream& vRecv);
bool GetBlockHash(uint256& hash, int nBlockHeight);
//
@ -248,83 +243,4 @@ public:
};
// for storing the winning payments
class CMasternodePaymentWinner
{
public:
int nBlockHeight;
CTxIn vin;
CScript payee;
std::vector<unsigned char> vchSig;
uint64_t score;
CMasternodePaymentWinner() {
nBlockHeight = 0;
score = 0;
vin = CTxIn();
payee = CScript();
}
uint256 GetHash(){
uint256 n2 = HashX11(BEGIN(nBlockHeight), END(nBlockHeight));
uint256 n3 = vin.prevout.hash > n2 ? (vin.prevout.hash - n2) : (n2 - vin.prevout.hash);
return n3;
}
ADD_SERIALIZE_METHODS;
template <typename Stream, typename Operation>
inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
READWRITE(nBlockHeight);
READWRITE(payee);
READWRITE(vin);
READWRITE(score);
READWRITE(vchSig);
}
};
//
// Masternode Payments Class
// Keeps track of who should get paid for which blocks
//
class CMasternodePayments
{
private:
std::vector<CMasternodePaymentWinner> vWinning;
int nSyncedFromPeer;
std::string strMasterPrivKey;
bool enabled;
int nLastBlockHeight;
public:
CMasternodePayments() {
enabled = false;
}
bool SetPrivKey(std::string strPrivKey);
bool CheckSignature(CMasternodePaymentWinner& winner);
bool Sign(CMasternodePaymentWinner& winner);
// Deterministically calculate a given "score" for a masternode depending on how close it's hash is
// to the blockHeight. The further away they are the better, the furthest will win the election
// and get paid this block
//
uint64_t CalculateScore(uint256 blockHash, CTxIn& vin);
bool GetWinningMasternode(int nBlockHeight, CTxIn& vinOut);
bool AddWinningMasternode(CMasternodePaymentWinner& winner);
bool ProcessBlock(int nBlockHeight);
void Relay(CMasternodePaymentWinner& winner);
void Sync(CNode* node);
void CleanPaymentList();
int LastPayment(CMasternode& mn);
//slow
bool GetBlockPayee(int nBlockHeight, CScript& payee);
};
#endif

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@ -20,6 +20,7 @@
#include "wallet.h"
#endif
#include "masternodeman.h"
#include "masternode-payments.h"
#include <boost/thread.hpp>
#include <boost/tuple/tuple.hpp>

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@ -8,6 +8,7 @@
#include "init.h"
#include "activemasternode.h"
#include "masternodeman.h"
#include "masternode-payments.h"
#include "masternodeconfig.h"
#include "rpcserver.h"
#include "utilmoneystr.h"