262 lines
10 KiB
C++
262 lines
10 KiB
C++
// Copyright (c) 2014-2017 The Dash Core developers
|
|
// Distributed under the MIT software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
#include "chainparams.h"
|
|
#include "validation.h"
|
|
#include "messagesigner.h"
|
|
#include "net_processing.h"
|
|
#include "netmessagemaker.h"
|
|
#include "spork.h"
|
|
|
|
#include <boost/lexical_cast.hpp>
|
|
|
|
class CSporkMessage;
|
|
class CSporkManager;
|
|
|
|
CSporkManager sporkManager;
|
|
|
|
std::map<uint256, CSporkMessage> mapSporks;
|
|
|
|
void CSporkManager::ProcessSpork(CNode* pfrom, const std::string& strCommand, CDataStream& vRecv, CConnman& connman)
|
|
{
|
|
if(fLiteMode) return; // disable all Dash specific functionality
|
|
|
|
if (strCommand == NetMsgType::SPORK) {
|
|
|
|
CSporkMessage spork;
|
|
vRecv >> spork;
|
|
|
|
uint256 hash = spork.GetHash();
|
|
|
|
std::string strLogMsg;
|
|
{
|
|
LOCK(cs_main);
|
|
pfrom->setAskFor.erase(hash);
|
|
if(!chainActive.Tip()) return;
|
|
strLogMsg = strprintf("SPORK -- hash: %s id: %d value: %10d bestHeight: %d peer=%d", hash.ToString(), spork.nSporkID, spork.nValue, chainActive.Height(), pfrom->id);
|
|
}
|
|
|
|
if(mapSporksActive.count(spork.nSporkID)) {
|
|
if (mapSporksActive[spork.nSporkID].nTimeSigned >= spork.nTimeSigned) {
|
|
LogPrint("spork", "%s seen\n", strLogMsg);
|
|
return;
|
|
} else {
|
|
LogPrintf("%s updated\n", strLogMsg);
|
|
}
|
|
} else {
|
|
LogPrintf("%s new\n", strLogMsg);
|
|
}
|
|
|
|
if(!spork.CheckSignature()) {
|
|
LogPrintf("CSporkManager::ProcessSpork -- invalid signature\n");
|
|
Misbehaving(pfrom->GetId(), 100);
|
|
return;
|
|
}
|
|
|
|
mapSporks[hash] = spork;
|
|
mapSporksActive[spork.nSporkID] = spork;
|
|
spork.Relay(connman);
|
|
|
|
//does a task if needed
|
|
ExecuteSpork(spork.nSporkID, spork.nValue);
|
|
|
|
} else if (strCommand == NetMsgType::GETSPORKS) {
|
|
|
|
std::map<int, CSporkMessage>::iterator it = mapSporksActive.begin();
|
|
|
|
while(it != mapSporksActive.end()) {
|
|
connman.PushMessage(pfrom, CNetMsgMaker(pfrom->GetSendVersion()).Make(NetMsgType::SPORK, it->second));
|
|
it++;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
void CSporkManager::ExecuteSpork(int nSporkID, int nValue)
|
|
{
|
|
//correct fork via spork technology
|
|
if(nSporkID == SPORK_12_RECONSIDER_BLOCKS && nValue > 0) {
|
|
// allow to reprocess 24h of blocks max, which should be enough to resolve any issues
|
|
int64_t nMaxBlocks = 576;
|
|
// this potentially can be a heavy operation, so only allow this to be executed once per 10 minutes
|
|
int64_t nTimeout = 10 * 60;
|
|
|
|
static int64_t nTimeExecuted = 0; // i.e. it was never executed before
|
|
|
|
if(GetTime() - nTimeExecuted < nTimeout) {
|
|
LogPrint("spork", "CSporkManager::ExecuteSpork -- ERROR: Trying to reconsider blocks, too soon - %d/%d\n", GetTime() - nTimeExecuted, nTimeout);
|
|
return;
|
|
}
|
|
|
|
if(nValue > nMaxBlocks) {
|
|
LogPrintf("CSporkManager::ExecuteSpork -- ERROR: Trying to reconsider too many blocks %d/%d\n", nValue, nMaxBlocks);
|
|
return;
|
|
}
|
|
|
|
|
|
LogPrintf("CSporkManager::ExecuteSpork -- Reconsider Last %d Blocks\n", nValue);
|
|
|
|
ReprocessBlocks(nValue);
|
|
nTimeExecuted = GetTime();
|
|
}
|
|
}
|
|
|
|
bool CSporkManager::UpdateSpork(int nSporkID, int64_t nValue, CConnman& connman)
|
|
{
|
|
|
|
CSporkMessage spork = CSporkMessage(nSporkID, nValue, GetAdjustedTime());
|
|
|
|
if(spork.Sign(strMasterPrivKey)) {
|
|
spork.Relay(connman);
|
|
mapSporks[spork.GetHash()] = spork;
|
|
mapSporksActive[nSporkID] = spork;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// grab the spork, otherwise say it's off
|
|
bool CSporkManager::IsSporkActive(int nSporkID)
|
|
{
|
|
int64_t r = -1;
|
|
|
|
if(mapSporksActive.count(nSporkID)){
|
|
r = mapSporksActive[nSporkID].nValue;
|
|
} else {
|
|
switch (nSporkID) {
|
|
case SPORK_2_INSTANTSEND_ENABLED: r = SPORK_2_INSTANTSEND_ENABLED_DEFAULT; break;
|
|
case SPORK_3_INSTANTSEND_BLOCK_FILTERING: r = SPORK_3_INSTANTSEND_BLOCK_FILTERING_DEFAULT; break;
|
|
case SPORK_5_INSTANTSEND_MAX_VALUE: r = SPORK_5_INSTANTSEND_MAX_VALUE_DEFAULT; break;
|
|
case SPORK_8_MASTERNODE_PAYMENT_ENFORCEMENT: r = SPORK_8_MASTERNODE_PAYMENT_ENFORCEMENT_DEFAULT; break;
|
|
case SPORK_9_SUPERBLOCKS_ENABLED: r = SPORK_9_SUPERBLOCKS_ENABLED_DEFAULT; break;
|
|
case SPORK_10_MASTERNODE_PAY_UPDATED_NODES: r = SPORK_10_MASTERNODE_PAY_UPDATED_NODES_DEFAULT; break;
|
|
case SPORK_12_RECONSIDER_BLOCKS: r = SPORK_12_RECONSIDER_BLOCKS_DEFAULT; break;
|
|
case SPORK_14_REQUIRE_SENTINEL_FLAG: r = SPORK_14_REQUIRE_SENTINEL_FLAG_DEFAULT; break;
|
|
default:
|
|
LogPrint("spork", "CSporkManager::IsSporkActive -- Unknown Spork ID %d\n", nSporkID);
|
|
r = 4070908800ULL; // 2099-1-1 i.e. off by default
|
|
break;
|
|
}
|
|
}
|
|
|
|
return r < GetAdjustedTime();
|
|
}
|
|
|
|
// grab the value of the spork on the network, or the default
|
|
int64_t CSporkManager::GetSporkValue(int nSporkID)
|
|
{
|
|
if (mapSporksActive.count(nSporkID))
|
|
return mapSporksActive[nSporkID].nValue;
|
|
|
|
switch (nSporkID) {
|
|
case SPORK_2_INSTANTSEND_ENABLED: return SPORK_2_INSTANTSEND_ENABLED_DEFAULT;
|
|
case SPORK_3_INSTANTSEND_BLOCK_FILTERING: return SPORK_3_INSTANTSEND_BLOCK_FILTERING_DEFAULT;
|
|
case SPORK_5_INSTANTSEND_MAX_VALUE: return SPORK_5_INSTANTSEND_MAX_VALUE_DEFAULT;
|
|
case SPORK_8_MASTERNODE_PAYMENT_ENFORCEMENT: return SPORK_8_MASTERNODE_PAYMENT_ENFORCEMENT_DEFAULT;
|
|
case SPORK_9_SUPERBLOCKS_ENABLED: return SPORK_9_SUPERBLOCKS_ENABLED_DEFAULT;
|
|
case SPORK_10_MASTERNODE_PAY_UPDATED_NODES: return SPORK_10_MASTERNODE_PAY_UPDATED_NODES_DEFAULT;
|
|
case SPORK_12_RECONSIDER_BLOCKS: return SPORK_12_RECONSIDER_BLOCKS_DEFAULT;
|
|
case SPORK_14_REQUIRE_SENTINEL_FLAG: return SPORK_14_REQUIRE_SENTINEL_FLAG_DEFAULT;
|
|
default:
|
|
LogPrint("spork", "CSporkManager::GetSporkValue -- Unknown Spork ID %d\n", nSporkID);
|
|
return -1;
|
|
}
|
|
|
|
}
|
|
|
|
int CSporkManager::GetSporkIDByName(std::string strName)
|
|
{
|
|
if (strName == "SPORK_2_INSTANTSEND_ENABLED") return SPORK_2_INSTANTSEND_ENABLED;
|
|
if (strName == "SPORK_3_INSTANTSEND_BLOCK_FILTERING") return SPORK_3_INSTANTSEND_BLOCK_FILTERING;
|
|
if (strName == "SPORK_5_INSTANTSEND_MAX_VALUE") return SPORK_5_INSTANTSEND_MAX_VALUE;
|
|
if (strName == "SPORK_8_MASTERNODE_PAYMENT_ENFORCEMENT") return SPORK_8_MASTERNODE_PAYMENT_ENFORCEMENT;
|
|
if (strName == "SPORK_9_SUPERBLOCKS_ENABLED") return SPORK_9_SUPERBLOCKS_ENABLED;
|
|
if (strName == "SPORK_10_MASTERNODE_PAY_UPDATED_NODES") return SPORK_10_MASTERNODE_PAY_UPDATED_NODES;
|
|
if (strName == "SPORK_12_RECONSIDER_BLOCKS") return SPORK_12_RECONSIDER_BLOCKS;
|
|
if (strName == "SPORK_14_REQUIRE_SENTINEL_FLAG") return SPORK_14_REQUIRE_SENTINEL_FLAG;
|
|
|
|
LogPrint("spork", "CSporkManager::GetSporkIDByName -- Unknown Spork name '%s'\n", strName);
|
|
return -1;
|
|
}
|
|
|
|
std::string CSporkManager::GetSporkNameByID(int nSporkID)
|
|
{
|
|
switch (nSporkID) {
|
|
case SPORK_2_INSTANTSEND_ENABLED: return "SPORK_2_INSTANTSEND_ENABLED";
|
|
case SPORK_3_INSTANTSEND_BLOCK_FILTERING: return "SPORK_3_INSTANTSEND_BLOCK_FILTERING";
|
|
case SPORK_5_INSTANTSEND_MAX_VALUE: return "SPORK_5_INSTANTSEND_MAX_VALUE";
|
|
case SPORK_8_MASTERNODE_PAYMENT_ENFORCEMENT: return "SPORK_8_MASTERNODE_PAYMENT_ENFORCEMENT";
|
|
case SPORK_9_SUPERBLOCKS_ENABLED: return "SPORK_9_SUPERBLOCKS_ENABLED";
|
|
case SPORK_10_MASTERNODE_PAY_UPDATED_NODES: return "SPORK_10_MASTERNODE_PAY_UPDATED_NODES";
|
|
case SPORK_12_RECONSIDER_BLOCKS: return "SPORK_12_RECONSIDER_BLOCKS";
|
|
case SPORK_14_REQUIRE_SENTINEL_FLAG: return "SPORK_14_REQUIRE_SENTINEL_FLAG";
|
|
default:
|
|
LogPrint("spork", "CSporkManager::GetSporkNameByID -- Unknown Spork ID %d\n", nSporkID);
|
|
return "Unknown";
|
|
}
|
|
}
|
|
|
|
bool CSporkManager::SetPrivKey(std::string strPrivKey)
|
|
{
|
|
CSporkMessage spork;
|
|
|
|
spork.Sign(strPrivKey);
|
|
|
|
if(spork.CheckSignature()){
|
|
// Test signing successful, proceed
|
|
LogPrintf("CSporkManager::SetPrivKey -- Successfully initialized as spork signer\n");
|
|
strMasterPrivKey = strPrivKey;
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool CSporkMessage::Sign(std::string strSignKey)
|
|
{
|
|
CKey key;
|
|
CPubKey pubkey;
|
|
std::string strError = "";
|
|
std::string strMessage = boost::lexical_cast<std::string>(nSporkID) + boost::lexical_cast<std::string>(nValue) + boost::lexical_cast<std::string>(nTimeSigned);
|
|
|
|
if(!CMessageSigner::GetKeysFromSecret(strSignKey, key, pubkey)) {
|
|
LogPrintf("CSporkMessage::Sign -- GetKeysFromSecret() failed, invalid spork key %s\n", strSignKey);
|
|
return false;
|
|
}
|
|
|
|
if(!CMessageSigner::SignMessage(strMessage, vchSig, key)) {
|
|
LogPrintf("CSporkMessage::Sign -- SignMessage() failed\n");
|
|
return false;
|
|
}
|
|
|
|
if(!CMessageSigner::VerifyMessage(pubkey, vchSig, strMessage, strError)) {
|
|
LogPrintf("CSporkMessage::Sign -- VerifyMessage() failed, error: %s\n", strError);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CSporkMessage::CheckSignature()
|
|
{
|
|
//note: need to investigate why this is failing
|
|
std::string strError = "";
|
|
std::string strMessage = boost::lexical_cast<std::string>(nSporkID) + boost::lexical_cast<std::string>(nValue) + boost::lexical_cast<std::string>(nTimeSigned);
|
|
CPubKey pubkey(ParseHex(Params().SporkPubKey()));
|
|
|
|
if(!CMessageSigner::VerifyMessage(pubkey, vchSig, strMessage, strError)) {
|
|
LogPrintf("CSporkMessage::CheckSignature -- VerifyMessage() failed, error: %s\n", strError);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void CSporkMessage::Relay(CConnman& connman)
|
|
{
|
|
CInv inv(MSG_SPORK, GetHash());
|
|
connman.RelayInv(inv);
|
|
}
|