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activemasternode.cpp
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activemasternode.cpp
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// Copyright (c) 2009-2012 The Darkcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "protocol.h"
#include "activemasternode.h"
#include "masternodeman.h"
#include <boost/lexical_cast.hpp>
#include "clientversion.h"
//
// Bootup the masternode, look for a 250000 AEVO input and register on the network
//
void CActiveMasternode::ManageStatus()
{
std::string errorMessage;
if (fDebug) LogPrintf("CActiveMasternode::ManageStatus() - Begin\n");
if(!fMasterNode) return;
//need correct adjusted time to send ping
bool fIsInitialDownload = IsInitialBlockDownload();
if(fIsInitialDownload) {
status = MASTERNODE_SYNC_IN_PROCESS;
LogPrintf("CActiveMasternode::ManageStatus() - Sync in progress. Must wait until sync is complete to start masternode.\n");
return;
}
if(status == MASTERNODE_INPUT_TOO_NEW || status == MASTERNODE_NOT_CAPABLE || status == MASTERNODE_SYNC_IN_PROCESS){
status = MASTERNODE_NOT_PROCESSED;
}
if(status == MASTERNODE_NOT_PROCESSED) {
if(strMasterNodeAddr.empty()) {
if(!GetLocal(service)) {
notCapableReason = "Can't detect external address. Please use the masternodeaddr configuration option.";
status = MASTERNODE_NOT_CAPABLE;
LogPrintf("CActiveMasternode::ManageStatus() - not capable: %s\n", notCapableReason.c_str());
return;
}
} else {
service = CService(strMasterNodeAddr, true);
}
LogPrintf("CActiveMasternode::ManageStatus() - Checking inbound connection to '%s'\n", service.ToString().c_str());
if(!ConnectNode((CAddress)service, service.ToString().c_str())){
notCapableReason = "Could not connect to " + service.ToString();
status = MASTERNODE_NOT_CAPABLE;
LogPrintf("CActiveMasternode::ManageStatus() - not capable: %s\n", notCapableReason.c_str());
return;
}
if(pwalletMain->IsLocked()){
notCapableReason = "Wallet is locked.";
status = MASTERNODE_NOT_CAPABLE;
LogPrintf("CActiveMasternode::ManageStatus() - not capable: %s\n", notCapableReason.c_str());
return;
}
// Set defaults
status = MASTERNODE_NOT_CAPABLE;
notCapableReason = "Unknown. Check debug.log for more information.\n";
// Choose coins to use
CPubKey pubKeyCollateralAddress;
CKey keyCollateralAddress;
if(GetMasterNodeVin(vin, pubKeyCollateralAddress, keyCollateralAddress)) {
if(GetInputAge(vin) < MASTERNODE_MIN_CONFIRMATIONS){
notCapableReason = "Input must have least " + boost::lexical_cast<string>(MASTERNODE_MIN_CONFIRMATIONS) +
" confirmations - " + boost::lexical_cast<string>(GetInputAge(vin)) + " confirmations";
LogPrintf("CActiveMasternode::ManageStatus() - %s\n", notCapableReason.c_str());
status = MASTERNODE_INPUT_TOO_NEW;
return;
}
LogPrintf("CActiveMasternode::ManageStatus() - Is capable master node!\n");
status = MASTERNODE_IS_CAPABLE;
notCapableReason = "";
pwalletMain->LockCoin(vin.prevout);
// send to all nodes
CPubKey pubKeyMasternode;
CKey keyMasternode;
if(!darkSendSigner.SetKey(strMasterNodePrivKey, errorMessage, keyMasternode, pubKeyMasternode))
{
LogPrintf("ActiveMasternode::Dseep() - Error upon calling SetKey: %s\n", errorMessage.c_str());
return;
}
/* rewards are not supported in Aevo.conf */
CScript rewardAddress = CScript();
int rewardPercentage = 0;
if(!Register(vin, service, keyCollateralAddress, pubKeyCollateralAddress, keyMasternode, pubKeyMasternode, rewardAddress, rewardPercentage, errorMessage)) {
LogPrintf("CActiveMasternode::ManageStatus() - Error on Register: %s\n", errorMessage.c_str());
}
return;
} else {
notCapableReason = "Could not find suitable coins!";
LogPrintf("CActiveMasternode::ManageStatus() - Could not find suitable coins!\n");
}
}
//send to all peers
if(!Dseep(errorMessage)) {
LogPrintf("CActiveMasternode::ManageStatus() - Error on Ping: %s\n", errorMessage.c_str());
}
}
// Send stop dseep to network for remote masternode
bool CActiveMasternode::StopMasterNode(std::string strService, std::string strKeyMasternode, std::string& errorMessage) {
CTxIn vin;
CKey keyMasternode;
CPubKey pubKeyMasternode;
if(!darkSendSigner.SetKey(strKeyMasternode, errorMessage, keyMasternode, pubKeyMasternode)) {
LogPrintf("CActiveMasternode::StopMasterNode() - Error: %s\n", errorMessage.c_str());
return false;
}
if (GetMasterNodeVin(vin, pubKeyMasternode, keyMasternode)){
LogPrintf("MasternodeStop::VinFound: %s\n", vin.ToString());
}
return StopMasterNode(vin, CService(strService, true), keyMasternode, pubKeyMasternode, errorMessage);
}
// Send stop dseep to network for main masternode
bool CActiveMasternode::StopMasterNode(std::string& errorMessage) {
if(status != MASTERNODE_IS_CAPABLE && status != MASTERNODE_REMOTELY_ENABLED) {
errorMessage = "masternode is not in a running status";
LogPrintf("CActiveMasternode::StopMasterNode() - Error: %s\n", errorMessage.c_str());
return false;
}
status = MASTERNODE_STOPPED;
CPubKey pubKeyMasternode;
CKey keyMasternode;
if(!darkSendSigner.SetKey(strMasterNodePrivKey, errorMessage, keyMasternode, pubKeyMasternode))
{
LogPrintf("Register::ManageStatus() - Error upon calling SetKey: %s\n", errorMessage.c_str());
return false;
}
return StopMasterNode(vin, service, keyMasternode, pubKeyMasternode, errorMessage);
}
// Send stop dseep to network for any masternode
bool CActiveMasternode::StopMasterNode(CTxIn vin, CService service, CKey keyMasternode, CPubKey pubKeyMasternode, std::string& errorMessage) {
pwalletMain->UnlockCoin(vin.prevout);
return Dseep(vin, service, keyMasternode, pubKeyMasternode, errorMessage, true);
}
bool CActiveMasternode::Dseep(std::string& errorMessage) {
if(status != MASTERNODE_IS_CAPABLE && status != MASTERNODE_REMOTELY_ENABLED) {
errorMessage = "masternode is not in a running status";
LogPrintf("CActiveMasternode::Dseep() - Error: %s\n", errorMessage.c_str());
return false;
}
CPubKey pubKeyMasternode;
CKey keyMasternode;
if(!darkSendSigner.SetKey(strMasterNodePrivKey, errorMessage, keyMasternode, pubKeyMasternode))
{
LogPrintf("CActiveMasternode::Dseep() - Error upon calling SetKey: %s\n", errorMessage.c_str());
return false;
}
return Dseep(vin, service, keyMasternode, pubKeyMasternode, errorMessage, false);
}
bool CActiveMasternode::Dseep(CTxIn vin, CService service, CKey keyMasternode, CPubKey pubKeyMasternode, std::string &retErrorMessage, bool stop) {
std::string errorMessage;
std::vector<unsigned char> vchMasterNodeSignature;
std::string strMasterNodeSignMessage;
int64_t masterNodeSignatureTime = GetAdjustedTime();
std::string strMessage = service.ToString() + boost::lexical_cast<std::string>(masterNodeSignatureTime) + boost::lexical_cast<std::string>(stop);
if(!darkSendSigner.SignMessage(strMessage, errorMessage, vchMasterNodeSignature, keyMasternode)) {
retErrorMessage = "sign message failed: " + errorMessage;
LogPrintf("CActiveMasternode::Dseep() - Error: %s\n", retErrorMessage.c_str());
return false;
}
if(!darkSendSigner.VerifyMessage(pubKeyMasternode, vchMasterNodeSignature, strMessage, errorMessage)) {
retErrorMessage = "Verify message failed: " + errorMessage;
LogPrintf("CActiveMasternode::Dseep() - Error: %s\n", retErrorMessage.c_str());
return false;
}
// Update Last Seen timestamp in masternode list
CMasternode* pmn = mnodeman.Find(vin);
if(pmn != NULL)
{
if(stop)
mnodeman.Remove(pmn->vin);
else
pmn->UpdateLastSeen();
} else {
// Seems like we are trying to send a ping while the masternode is not registered in the network
retErrorMessage = "Darksend Masternode List doesn't include our masternode, Shutting down masternode pinging service! " + vin.ToString();
LogPrintf("CActiveMasternode::Dseep() - Error: %s\n", retErrorMessage.c_str());
status = MASTERNODE_NOT_CAPABLE;
notCapableReason = retErrorMessage;
return false;
}
//send to all peers
LogPrintf("CActiveMasternode::Dseep() - RelayMasternodeEntryPing vin = %s\n", vin.ToString().c_str());
mnodeman.RelayMasternodeEntryPing(vin, vchMasterNodeSignature, masterNodeSignatureTime, stop);
return true;
}
bool CActiveMasternode::Register(std::string strService, std::string strKeyMasternode, std::string txHash, std::string strOutputIndex, std::string strRewardAddress, std::string strRewardPercentage, std::string& errorMessage) {
CTxIn vin;
CPubKey pubKeyCollateralAddress;
CKey keyCollateralAddress;
CPubKey pubKeyMasternode;
CKey keyMasternode;
CScript rewardAddress = CScript();
int rewardPercentage = 0;
if(!darkSendSigner.SetKey(strKeyMasternode, errorMessage, keyMasternode, pubKeyMasternode))
{
LogPrintf("CActiveMasternode::Register() - Error upon calling SetKey: %s\n", errorMessage.c_str());
return false;
}
if(!GetMasterNodeVin(vin, pubKeyCollateralAddress, keyCollateralAddress, txHash, strOutputIndex)) {
errorMessage = "could not allocate vin";
LogPrintf("CActiveMasternode::Register() - Error: %s\n", errorMessage.c_str());
return false;
}
CAevoAddress address;
if (strRewardAddress != "")
{
if(!address.SetString(strRewardAddress))
{
LogPrintf("ActiveMasternode::Register - Invalid Reward Address\n");
return false;
}
rewardAddress.SetDestination(address.Get());
try {
rewardPercentage = boost::lexical_cast<int>( strRewardPercentage );
} catch( boost::bad_lexical_cast const& ) {
LogPrintf("ActiveMasternode::Register - Invalid Reward Percentage (Couldn't cast)\n");
return false;
}
if(rewardPercentage < 0 || rewardPercentage > 100)
{
LogPrintf("ActiveMasternode::Register - Reward Percentage Out Of Range\n");
return false;
}
}
return Register(vin, CService(strService, true), keyCollateralAddress, pubKeyCollateralAddress, keyMasternode, pubKeyMasternode, rewardAddress, rewardPercentage, errorMessage);
}
bool CActiveMasternode::Register(CTxIn vin, CService service, CKey keyCollateralAddress, CPubKey pubKeyCollateralAddress, CKey keyMasternode, CPubKey pubKeyMasternode, CScript rewardAddress, int rewardPercentage, std::string &retErrorMessage) {
std::string errorMessage;
std::vector<unsigned char> vchMasterNodeSignature;
std::string strMasterNodeSignMessage;
int64_t masterNodeSignatureTime = GetAdjustedTime();
std::string vchPubKey(pubKeyCollateralAddress.begin(), pubKeyCollateralAddress.end());
std::string vchPubKey2(pubKeyMasternode.begin(), pubKeyMasternode.end());
std::string strMessage = service.ToString() + boost::lexical_cast<std::string>(masterNodeSignatureTime) + vchPubKey + vchPubKey2 + boost::lexical_cast<std::string>(PROTOCOL_VERSION) + rewardAddress.ToString() + boost::lexical_cast<std::string>(rewardPercentage);
if(!darkSendSigner.SignMessage(strMessage, errorMessage, vchMasterNodeSignature, keyCollateralAddress)) {
retErrorMessage = "sign message failed: " + errorMessage;
LogPrintf("CActiveMasternode::Register() - Error: %s\n", retErrorMessage.c_str());
return false;
}
if(!darkSendSigner.VerifyMessage(pubKeyCollateralAddress, vchMasterNodeSignature, strMessage, errorMessage)) {
retErrorMessage = "Verify message failed: " + errorMessage;
LogPrintf("CActiveMasternode::Register() - Error: %s\n", retErrorMessage.c_str());
return false;
}
CMasternode* pmn = mnodeman.Find(vin);
if(pmn == NULL)
{
LogPrintf("CActiveMasternode::Register() - Adding to masternode list service: %s - vin: %s\n", service.ToString().c_str(), vin.ToString().c_str());
CMasternode mn(service, vin, pubKeyCollateralAddress, vchMasterNodeSignature, masterNodeSignatureTime, pubKeyMasternode, PROTOCOL_VERSION, rewardAddress, rewardPercentage);
mn.ChangeNodeStatus(false);
mn.UpdateLastSeen(masterNodeSignatureTime);
mnodeman.Add(mn);
}
//send to all peers
LogPrintf("CActiveMasternode::Register() - RelayElectionEntry vin = %s\n", vin.ToString().c_str());
mnodeman.RelayMasternodeEntry(vin, service, vchMasterNodeSignature, masterNodeSignatureTime, pubKeyCollateralAddress, pubKeyMasternode, -1, -1, masterNodeSignatureTime, PROTOCOL_VERSION, rewardAddress, rewardPercentage);
return true;
}
bool CActiveMasternode::GetMasterNodeVin(CTxIn& vin, CPubKey& pubkey, CKey& secretKey) {
return GetMasterNodeVin(vin, pubkey, secretKey, "", "");
}
bool CActiveMasternode::GetMasterNodeVin(CTxIn& vin, CPubKey& pubkey, CKey& secretKey, std::string strTxHash, std::string strOutputIndex) {
CScript pubScript;
// Find possible candidates
vector<COutput> possibleCoins = SelectCoinsMasternode();
COutput *selectedOutput;
// Find the vin
if(!strTxHash.empty()) {
// Let's find it
uint256 txHash(strTxHash);
int outputIndex = boost::lexical_cast<int>(strOutputIndex);
bool found = false;
BOOST_FOREACH(COutput& out, possibleCoins) {
if(out.tx->GetHash() == txHash && out.i == outputIndex)
{
selectedOutput = &out;
found = true;
break;
}
}
if(!found) {
LogPrintf("CActiveMasternode::GetMasterNodeVin - Could not locate valid vin\n");
return false;
}
} else {
// No output specified, Select the first one
if(possibleCoins.size() > 0) {
selectedOutput = &possibleCoins[0];
} else {
LogPrintf("CActiveMasternode::GetMasterNodeVin - Could not locate specified vin from possible list\n");
return false;
}
}
// At this point we have a selected output, retrieve the associated info
return GetVinFromOutput(*selectedOutput, vin, pubkey, secretKey);
}
bool CActiveMasternode::GetMasterNodeVinForPubKey(std::string collateralAddress, CTxIn& vin, CPubKey& pubkey, CKey& secretKey) {
return GetMasterNodeVinForPubKey(collateralAddress, vin, pubkey, secretKey, "", "");
}
bool CActiveMasternode::GetMasterNodeVinForPubKey(std::string collateralAddress, CTxIn& vin, CPubKey& pubkey, CKey& secretKey, std::string strTxHash, std::string strOutputIndex) {
CScript pubScript;
// Find possible candidates
vector<COutput> possibleCoins = SelectCoinsMasternodeForPubKey(collateralAddress);
COutput *selectedOutput;
// Find the vin
if(!strTxHash.empty()) {
// Let's find it
uint256 txHash(strTxHash);
int outputIndex = boost::lexical_cast<int>(strOutputIndex);
bool found = false;
BOOST_FOREACH(COutput& out, possibleCoins) {
if(out.tx->GetHash() == txHash && out.i == outputIndex)
{
selectedOutput = &out;
found = true;
break;
}
}
if(!found) {
LogPrintf("CActiveMasternode::GetMasterNodeVinForPubKey - Could not locate valid vin\n");
return false;
}
} else {
// No output specified, Select the first one
if(possibleCoins.size() > 0) {
selectedOutput = &possibleCoins[0];
} else {
LogPrintf("CActiveMasternode::GetMasterNodeVinForPubKey - Could not locate specified vin from possible list\n");
return false;
}
}
// At this point we have a selected output, retrieve the associated info
return GetVinFromOutput(*selectedOutput, vin, pubkey, secretKey);
}
// Extract masternode vin information from output
bool CActiveMasternode::GetVinFromOutput(COutput out, CTxIn& vin, CPubKey& pubkey, CKey& secretKey) {
CScript pubScript;
vin = CTxIn(out.tx->GetHash(),out.i);
pubScript = out.tx->vout[out.i].scriptPubKey; // the inputs PubKey
CTxDestination address1;
ExtractDestination(pubScript, address1);
CAevoAddress address2(address1);
CKeyID keyID;
if (!address2.GetKeyID(keyID)) {
LogPrintf("CActiveMasternode::GetMasterNodeVin - Address does not refer to a key\n");
return false;
}
if (!pwalletMain->GetKey(keyID, secretKey)) {
LogPrintf ("CActiveMasternode::GetMasterNodeVin - Private key for address is not known\n");
return false;
}
pubkey = secretKey.GetPubKey();
return true;
}
// get all possible outputs for running masternode
vector<COutput> CActiveMasternode::SelectCoinsMasternode()
{
vector<COutput> vCoins;
vector<COutput> filteredCoins;
// Retrieve all possible outputs
pwalletMain->AvailableCoinsMN(vCoins);
// Filter
BOOST_FOREACH(const COutput& out, vCoins)
{
if(out.tx->vout[out.i].nValue == GetMNCollateral(pindexBest->nHeight)*COIN) { //exactly
filteredCoins.push_back(out);
}
}
return filteredCoins;
}
// get all possible outputs for running masternode for a specific pubkey
vector<COutput> CActiveMasternode::SelectCoinsMasternodeForPubKey(std::string collateralAddress)
{
CAevoAddress address(collateralAddress);
CScript scriptPubKey;
scriptPubKey.SetDestination(address.Get());
vector<COutput> vCoins;
vector<COutput> filteredCoins;
// Retrieve all possible outputs
pwalletMain->AvailableCoins(vCoins);
// Filter
BOOST_FOREACH(const COutput& out, vCoins)
{
if(out.tx->vout[out.i].scriptPubKey == scriptPubKey && out.tx->vout[out.i].nValue == GetMNCollateral(pindexBest->nHeight)*COIN) { //exactly
filteredCoins.push_back(out);
}
}
return filteredCoins;
}
// when starting a masternode, this can enable to run as a hot wallet with no funds
bool CActiveMasternode::EnableHotColdMasterNode(CTxIn& newVin, CService& newService)
{
if(!fMasterNode) return false;
status = MASTERNODE_REMOTELY_ENABLED;
//The values below are needed for signing dseep messages going forward
this->vin = newVin;
this->service = newService;
LogPrintf("CActiveMasternode::EnableHotColdMasterNode() - Enabled! You may shut down the cold daemon.\n");
return true;
}