bool CMasternodeBroadcast::Create(const COutPoint& outpoint, const CService& service, const CKey& keyCollateralAddressNew, const CPubKey& pubKeyCollateralAddressNew, const CKey& keyMasternodeNew, const CPubKey& pubKeyMasternodeNew, std::string& strErrorRet, CMasternodeBroadcast& mnbRet)
{
// wait for reindex and/or import to finish
if (fImporting || fReindex) return false;
LogPrint(MCLog::MN, "CMasternodeBroadcast::Create -- pubKeyCollateralAddressNew = %s, pubKeyMasternodeNew.GetID() = %s\n",
EncodeDestination(CScriptID(GetScriptForDestination(WitnessV0KeyHash(pubKeyCollateralAddressNew.GetID())))),
EncodeDestination(CScriptID(GetScriptForDestination(WitnessV0KeyHash(pubKeyMasternodeNew.GetID())))));
auto Log = [&strErrorRet, &mnbRet](std::string sErr) -> bool {
strErrorRet = sErr;
mnbRet = CMasternodeBroadcast();
return false;
};
CMasternodePing mnp(outpoint);
if (!mnp.Sign(keyMasternodeNew, pubKeyMasternodeNew))
return Log(strprintf("Failed to sign ping, masternode=%s", outpoint.ToStringShort()));
mnbRet = CMasternodeBroadcast(service, outpoint, pubKeyCollateralAddressNew, pubKeyMasternodeNew, PROTOCOL_VERSION);
if (!mnbRet.IsValidNetAddr())
return Log(strprintf("Invalid IP address, masternode=%s", outpoint.ToStringShort()));
mnbRet.lastPing = mnp;
if (!mnbRet.Sign(keyCollateralAddressNew))
return Log(strprintf("Failed to sign broadcast, masternode=%s", outpoint.ToStringShort()));
return true;
}
CScript GetScriptForWitness(const CScript& redeemscript)
{
txnouttype typ;
std::vector<std::vector<unsigned char> > vSolutions;
if (Solver(redeemscript, typ, vSolutions)) {
if (typ == TX_PUBKEY) {
return GetScriptForDestination(WitnessV0KeyHash(Hash160(vSolutions[0].begin(), vSolutions[0].end())));
} else if (typ == TX_PUBKEYHASH) {
return GetScriptForDestination(WitnessV0KeyHash(vSolutions[0]));
}
}
return GetScriptForDestination(WitnessV0ScriptHash(redeemscript));
}
CScript GetScriptForWitness(const CScript& redeemscript)
{
CScript ret;
txnouttype typ;
std::vector<std::vector<unsigned char> > vSolutions;
if (Solver(redeemscript, typ, vSolutions)) {
if (typ == TX_PUBKEY) {
return GetScriptForDestination(WitnessV0KeyHash(Hash160(vSolutions[0].begin(), vSolutions[0].end())));
} else if (typ == TX_PUBKEYHASH) {
return GetScriptForDestination(WitnessV0KeyHash(vSolutions[0]));
}
}
uint256 hash;
CSHA256().Write(&redeemscript[0], redeemscript.size()).Finalize(hash.begin());
return GetScriptForDestination(WitnessV0ScriptHash(hash));
}
std::vector<CTxDestination> GetAllDestinationsForKey(const CPubKey& key)
{
CKeyID keyid = key.GetID();
if (key.IsCompressed()) {
CTxDestination segwit = WitnessV0KeyHash(keyid);
CTxDestination p2sh = CScriptID(GetScriptForDestination(segwit));
return std::vector<CTxDestination>{std::move(keyid), std::move(p2sh), std::move(segwit)};
} else {
return std::vector<CTxDestination>{std::move(keyid)};
}
}
void CMasternode::UpdateLastPaid(const CBlockIndex* pindex, int nMaxBlocksToScanBack)
{
if (!pindex) return;
const CBlockIndex* pindexActive = chainActive.Tip();
assert(pindexActive);
CDiskBlockPos blockPos = pindexActive->GetBlockPos();
CScript mnpayee = GetScriptForDestination(CScriptID(GetScriptForDestination(WitnessV0KeyHash(pubKeyCollateralAddress.GetID()))));
//LogPrint(MCLog::MN, "CMasternode::UpdateLastPaidBlock -- searching for block with payment to %s\n", outpoint.ToStringShort());
LOCK(cs_mapMasternodeBlocks);
for (int i = 0; pindexActive->nHeight > nBlockLastPaid && i < nMaxBlocksToScanBack; i++) {
if (mnpayments.mapMasternodeBlocks.count(pindexActive->nHeight) &&
mnpayments.mapMasternodeBlocks[pindexActive->nHeight].HasPayeeWithVotes(mnpayee, 2)) {
if (blockPos.IsNull() == true) {
return;
}
CBlock block;
if (!ReadBlockFromDisk(block, blockPos, Params().GetConsensus()))
continue;
CAmount nMasternodePayment = GetMasternodePayment(pindexActive->nHeight, block.vtx[0]->GetValueOut());
for (const auto& txout : block.vtx[0]->vout)
if (mnpayee == txout.scriptPubKey && nMasternodePayment == txout.nValue) {
nBlockLastPaid = pindexActive->nHeight;
nTimeLastPaid = pindexActive->nTime;
LogPrint(MCLog::MN, "CMasternode::UpdateLastPaidBlock -- searching for block with payment to %s -- found new %d\n", outpoint.ToStringShort(), nBlockLastPaid);
return;
}
}
if (pindexActive->pprev == nullptr) {
assert(pindexActive);
break;
}
pindexActive = pindexActive->pprev;
}
// Last payment for this masternode wasn't found in latest mnpayments blocks
// or it was found in mnpayments blocks but wasn't found in the blockchain.
LogPrint(MCLog::MN, "CMasternode::UpdateLastPaidBlock -- searching for block with payment to %s -- keeping old %d\n", outpoint.ToStringShort(), nBlockLastPaid);
}
CTxDestination GetDestinationForKey(const CPubKey& key, OutputType type)
{
switch (type) {
case OutputType::LEGACY: return key.GetID();
case OutputType::P2SH_SEGWIT:
case OutputType::BECH32: {
if (!key.IsCompressed()) return key.GetID();
CTxDestination witdest = WitnessV0KeyHash(key.GetID());
CScript witprog = GetScriptForDestination(witdest);
if (type == OutputType::P2SH_SEGWIT) {
return CScriptID(witprog);
} else {
return witdest;
}
}
default: assert(false);
}
}
void CBasicKeyStore::ImplicitlyLearnRelatedKeyScripts(const CPubKey& pubkey)
{
AssertLockHeld(cs_KeyStore);
CKeyID key_id = pubkey.GetID();
// We must actually know about this key already.
assert(HaveKey(key_id) || mapWatchKeys.count(key_id));
// This adds the redeemscripts necessary to detect P2WPKH and P2SH-P2WPKH
// outputs. Technically P2WPKH outputs don't have a redeemscript to be
// spent. However, our current IsMine logic requires the corresponding
// P2SH-P2WPKH redeemscript to be present in the wallet in order to accept
// payment even to P2WPKH outputs.
// Also note that having superfluous scripts in the keystore never hurts.
// They're only used to guide recursion in signing and IsMine logic - if
// a script is present but we can't do anything with it, it has no effect.
// "Implicitly" refers to fact that scripts are derived automatically from
// existing keys, and are present in memory, even without being explicitly
// loaded (e.g. from a file).
if (pubkey.IsCompressed()) {
CScript script = GetScriptForDestination(WitnessV0KeyHash(key_id));
// This does not use AddCScript, as it may be overridden.
CScriptID id(script);
mapScripts[id] = std::move(script);
}
}
CMasternode::CollateralStatus CMasternode::CheckCollateral(const COutPoint& outpoint, const CPubKey& pubkey, int& nHeightRet)
{
AssertLockHeld(cs_main);
Coin coin;
if (!GetUTXOCoin(outpoint, coin)) {
return COLLATERAL_UTXO_NOT_FOUND;
}
if (coin.out.nValue != 25000 * COIN) {
return COLLATERAL_INVALID_AMOUNT;
}
if (pubkey == CPubKey() || coin.out.scriptPubKey != GetScriptForDestination(CScriptID(GetScriptForDestination(WitnessV0KeyHash(pubkey.GetID()))))) {
return COLLATERAL_INVALID_PUBKEY;
}
nHeightRet = coin.nHeight;
return COLLATERAL_OK;
}
