CTxDestination COFCCoinAddress::Get() const {
if (!IsValid())
return CNoDestination();
uint160 id;
memcpy(&id, &vchData[0], 20);
if (vchVersion == Params().Base58Prefix(CChainParams::PUBKEY_ADDRESS))
return CKeyID(id);
else if (vchVersion == Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS))
return CScriptID(id);
else
return CNoDestination();
}
CTxDestination CBitcoinAddress::Get() const {
if (!IsValid())
return CNoDestination();
uint160 id;
memcpy(&id, &vchData[0], 20);
if (vchVersion == Params().Base58Prefix(pubkey_address))
return CKeyID(id);
else if (vchVersion == Params().Base58Prefix(script_address))
return CScriptID(id);
else
return CNoDestination();
}
UniValue decodescript(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 1)
throw std::runtime_error(
"decodescript \"hexstring\"\n"
"\nDecode a hex-encoded script.\n"
"\nArguments:\n"
"1. \"hexstring\" (string) the hex encoded script\n"
"\nResult:\n"
"{\n"
" \"asm\":\"asm\", (string) Script public key\n"
" \"hex\":\"hex\", (string) hex encoded public key\n"
" \"type\":\"type\", (string) The output type\n"
" \"reqSigs\": n, (numeric) The required signatures\n"
" \"addresses\": [ (json array of string)\n"
" \"address\" (string) bitcoin address\n"
" ,...\n"
" ],\n"
" \"p2sh\",\"address\" (string) address of P2SH script wrapping this redeem script (not returned if the script is already a P2SH).\n"
"}\n"
"\nExamples:\n"
+ HelpExampleCli("decodescript", "\"hexstring\"")
+ HelpExampleRpc("decodescript", "\"hexstring\"")
);
RPCTypeCheck(request.params, {UniValue::VSTR});
UniValue r(UniValue::VOBJ);
CScript script;
if (request.params[0].get_str().size() > 0){
std::vector<unsigned char> scriptData(ParseHexV(request.params[0], "argument"));
script = CScript(scriptData.begin(), scriptData.end());
} else {
// Empty scripts are valid
}
ScriptPubKeyToUniv(script, r, false);
UniValue type;
type = find_value(r, "type");
if (type.isStr() && type.get_str() != "scripthash") {
// P2SH cannot be wrapped in a P2SH. If this script is already a P2SH,
// don't return the address for a P2SH of the P2SH.
r.push_back(Pair("p2sh", EncodeDestination(CScriptID(script))));
}
return r;
}
UniValue operator()(const WitnessV0ScriptHash& id) const
{
UniValue obj(UniValue::VOBJ);
CScript subscript;
obj.push_back(Pair("isscript", true));
obj.push_back(Pair("iswitness", true));
obj.push_back(Pair("witness_version", 0));
obj.push_back(Pair("witness_program", HexStr(id.begin(), id.end())));
CRIPEMD160 hasher;
uint160 hash;
hasher.Write(id.begin(), 32).Finalize(hash.begin());
if (pwallet && pwallet->GetCScript(CScriptID(hash), subscript)) {
obj.push_back(Pair("hex", HexStr(subscript.begin(), subscript.end())));
}
return obj;
}
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);
}
bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet)
{
std::vector<valtype> vSolutions;
txnouttype whichType;
if (!Solver(scriptPubKey, whichType, vSolutions))
return false;
if (whichType == TX_PUBKEY)
{
CPubKey pubKey(vSolutions[0]);
if (!pubKey.IsValid())
return false;
addressRet = pubKey.GetID();
return true;
}
else if (whichType == TX_PUBKEYHASH)
{
addressRet = CKeyID(uint160(vSolutions[0]));
return true;
}
else if (whichType == TX_SCRIPTHASH)
{
addressRet = CScriptID(uint160(vSolutions[0]));
return true;
} else if (whichType == TX_WITNESS_V0_KEYHASH) {
WitnessV0KeyHash hash;
std::copy(vSolutions[0].begin(), vSolutions[0].end(), hash.begin());
addressRet = hash;
return true;
} else if (whichType == TX_WITNESS_V0_SCRIPTHASH) {
WitnessV0ScriptHash hash;
std::copy(vSolutions[0].begin(), vSolutions[0].end(), hash.begin());
addressRet = hash;
return true;
} else if (whichType == TX_WITNESS_UNKNOWN) {
WitnessUnknown unk;
unk.version = vSolutions[0][0];
std::copy(vSolutions[1].begin(), vSolutions[1].end(), unk.program);
unk.length = vSolutions[1].size();
addressRet = unk;
return true;
}
// Multisig txns have more than one address...
return false;
}
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);
}
}
static void MutateTxAddOutScript(CMutableTransaction& tx, const std::string& strInput)
{
// separate VALUE:SCRIPT[:FLAGS]
std::vector<std::string> vStrInputParts;
boost::split(vStrInputParts, strInput, boost::is_any_of(":"));
if (vStrInputParts.size() < 2)
throw std::runtime_error("TX output missing separator");
// Extract and validate VALUE
CAmount value = ExtractAndValidateValue(vStrInputParts[0]);
// extract and validate script
std::string strScript = vStrInputParts[1];
CScript scriptPubKey = ParseScript(strScript);
// Extract FLAGS
bool bSegWit = false;
bool bScriptHash = false;
if (vStrInputParts.size() == 3) {
std::string flags = vStrInputParts.back();
bSegWit = (flags.find('W') != std::string::npos);
bScriptHash = (flags.find('S') != std::string::npos);
}
if (scriptPubKey.size() > MAX_SCRIPT_SIZE) {
throw std::runtime_error(strprintf(
"script exceeds size limit: %d > %d", scriptPubKey.size(), MAX_SCRIPT_SIZE));
}
if (bSegWit) {
scriptPubKey = GetScriptForWitness(scriptPubKey);
}
if (bScriptHash) {
if (scriptPubKey.size() > MAX_SCRIPT_ELEMENT_SIZE) {
throw std::runtime_error(strprintf(
"redeemScript exceeds size limit: %d > %d", scriptPubKey.size(), MAX_SCRIPT_ELEMENT_SIZE));
}
scriptPubKey = GetScriptForDestination(CScriptID(scriptPubKey));
}
// construct TxOut, append to transaction output list
CTxOut txout(value, scriptPubKey);
tx.vout.push_back(txout);
}
static void MutateTxAddOutPubKey(CMutableTransaction& tx, const std::string& strInput)
{
// Separate into VALUE:PUBKEY[:FLAGS]
std::vector<std::string> vStrInputParts;
boost::split(vStrInputParts, strInput, boost::is_any_of(":"));
if (vStrInputParts.size() < 2 || vStrInputParts.size() > 3)
throw std::runtime_error("TX output missing or too many separators");
// Extract and validate VALUE
CAmount value = ExtractAndValidateValue(vStrInputParts[0]);
// Extract and validate PUBKEY
CPubKey pubkey(ParseHex(vStrInputParts[1]));
if (!pubkey.IsFullyValid())
throw std::runtime_error("invalid TX output pubkey");
CScript scriptPubKey = GetScriptForRawPubKey(pubkey);
// Extract and validate FLAGS
bool bSegWit = false;
bool bScriptHash = false;
if (vStrInputParts.size() == 3) {
std::string flags = vStrInputParts[2];
bSegWit = (flags.find('W') != std::string::npos);
bScriptHash = (flags.find('S') != std::string::npos);
}
if (bSegWit) {
if (!pubkey.IsCompressed()) {
throw std::runtime_error("Uncompressed pubkeys are not useable for SegWit outputs");
}
// Call GetScriptForWitness() to build a P2WSH scriptPubKey
scriptPubKey = GetScriptForWitness(scriptPubKey);
}
if (bScriptHash) {
// Get the ID for the script, and then construct a P2SH destination for it.
scriptPubKey = GetScriptForDestination(CScriptID(scriptPubKey));
}
// construct TxOut, append to transaction output list
CTxOut txout(value, scriptPubKey);
tx.vout.push_back(txout);
}
CTxDestination CBitcoinAddress::Get() const {
if (!IsValid())
return CNoDestination();
switch (nVersion) {
case PUBKEY_ADDRESS:
case PUBKEY_ADDRESS_TEST: {
uint160 id;
memcpy(&id, &vchData[0], 20);
return CKeyID(id);
}
case SCRIPT_ADDRESS:
case SCRIPT_ADDRESS_TEST: {
uint160 id;
memcpy(&id, &vchData[0], 20);
return CScriptID(id);
}
}
return CNoDestination();
}
bool CBitcoinAddress::GetScriptID(CScriptID &scriptID) const {
/* if (!IsValid())
return false;
switch (vchVersion) {
case Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS):
case Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS_TEST): {
uint160 id;
memcpy(&id, &vchData[0], 20);
scriptID = CScriptID(id);
return true;
}
default: return false;
}*/
if (!IsValid() || vchVersion != Params().Base58Prefix(CChainParams::SCRIPT_ADDRESS))
return false;
uint160 id;
memcpy(&id, &vchData[0], 20);
scriptID = CScriptID(id);
return true;
}
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;
}
CTxDestination CBitcoinAddress::Get() const {
if (!IsValid())
return CNoDestination();
if (vchData.size() == 20) {
uint160 id;
memcpy(&id, &vchData[0], 20);
if (vchVersion == Params().Base58Prefix(CBaseParams::PUBKEY_ADDRESS))
return CKeyID(id);
else if (vchVersion == Params().Base58Prefix(CBaseParams::SCRIPT_ADDRESS))
return CScriptID(id);
else
return CNoDestination();
} else {
CAccountID id;
memcpy(&id, &vchData[0], 26);
return id;
}
}
UniValue validateaddress(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 1)
throw std::runtime_error(
"validateaddress \"address\"\n"
"\nReturn information about the given bitcoin address.\n"
"\nArguments:\n"
"1. \"address\" (string, required) The bitcoin address to validate\n"
"\nResult:\n"
"{\n"
" \"isvalid\" : true|false, (boolean) If the address is valid or not. If not, this is the only property returned.\n"
" \"address\" : \"address\", (string) The bitcoin address validated\n"
" \"scriptPubKey\" : \"hex\", (string) The hex encoded scriptPubKey generated by the address\n"
" \"ismine\" : true|false, (boolean) If the address is yours or not\n"
" \"iswatchonly\" : true|false, (boolean) If the address is watchonly\n"
" \"isscript\" : true|false, (boolean) If the key is a script\n"
" \"script\" : \"type\" (string, optional) The output script type. Possible types: nonstandard, pubkey, pubkeyhash, scripthash, multisig, nulldata, witness_v0_keyhash, witness_v0_scripthash\n"
" \"hex\" : \"hex\", (string, optional) The redeemscript for the p2sh address\n"
" \"addresses\" (string, optional) Array of addresses associated with the known redeemscript\n"
" [\n"
" \"address\"\n"
" ,...\n"
" ]\n"
" \"sigsrequired\" : xxxxx (numeric, optional) Number of signatures required to spend multisig output\n"
" \"pubkey\" : \"publickeyhex\", (string) The hex value of the raw public key\n"
" \"iscompressed\" : true|false, (boolean) If the address is compressed\n"
" \"account\" : \"account\" (string) DEPRECATED. The account associated with the address, \"\" is the default account\n"
" \"timestamp\" : timestamp, (number, optional) The creation time of the key if available in seconds since epoch (Jan 1 1970 GMT)\n"
" \"hdkeypath\" : \"keypath\" (string, optional) The HD keypath if the key is HD and available\n"
" \"hdmasterkeyid\" : \"<hash160>\" (string, optional) The Hash160 of the HD master pubkey\n"
"}\n"
"\nExamples:\n"
+ HelpExampleCli("validateaddress", "\"1PSSGeFHDnKNxiEyFrD1wcEaHr9hrQDDWc\"")
+ HelpExampleRpc("validateaddress", "\"1PSSGeFHDnKNxiEyFrD1wcEaHr9hrQDDWc\"")
);
#ifdef ENABLE_WALLET
CWallet * const pwallet = GetWalletForJSONRPCRequest(request);
LOCK2(cs_main, pwallet ? &pwallet->cs_wallet : NULL);
#else
LOCK(cs_main);
#endif
CBitcoinAddress address(request.params[0].get_str());
bool isValid = address.IsValid();
UniValue ret(UniValue::VOBJ);
ret.push_back(Pair("isvalid", isValid));
if (isValid)
{
CTxDestination dest = address.Get();
std::string currentAddress = address.ToString();
ret.push_back(Pair("address", currentAddress));
CScript scriptPubKey = GetScriptForDestination(dest);
ret.push_back(Pair("scriptPubKey", HexStr(scriptPubKey.begin(), scriptPubKey.end())));
#ifdef ENABLE_WALLET
isminetype mine = pwallet ? IsMine(*pwallet, dest) : ISMINE_NO;
ret.push_back(Pair("ismine", bool(mine & ISMINE_SPENDABLE)));
ret.push_back(Pair("iswatchonly", bool(mine & ISMINE_WATCH_ONLY)));
UniValue detail = boost::apply_visitor(DescribeAddressVisitor(pwallet), dest);
ret.pushKVs(detail);
if (pwallet && pwallet->mapAddressBook.count(dest)) {
ret.push_back(Pair("account", pwallet->mapAddressBook[dest].name));
}
CKeyID keyID;
if (pwallet) {
const auto& meta = pwallet->mapKeyMetadata;
auto it = address.GetKeyID(keyID) ? meta.find(keyID) : meta.end();
if (it == meta.end()) {
it = meta.find(CScriptID(scriptPubKey));
}
if (it != meta.end()) {
ret.push_back(Pair("timestamp", it->second.nCreateTime));
if (!it->second.hdKeypath.empty()) {
ret.push_back(Pair("hdkeypath", it->second.hdKeypath));
ret.push_back(Pair("hdmasterkeyid", it->second.hdMasterKeyID.GetHex()));
}
}
}
#endif
}
return ret;
}
isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey, bool& isInvalid, SigVersion sigversion)
{
std::vector<valtype> vSolutions;
txnouttype whichType;
if (!Solver(scriptPubKey, whichType, vSolutions)) {
if (keystore.HaveWatchOnly(scriptPubKey))
return ISMINE_WATCH_UNSOLVABLE;
return ISMINE_NO;
}
CKeyID keyID;
switch (whichType)
{
case TX_NONSTANDARD:
case TX_NULL_DATA:
break;
case TX_PUBKEY:
keyID = CPubKey(vSolutions[0]).GetID();
if (sigversion != SIGVERSION_BASE && vSolutions[0].size() != 33) {
isInvalid = true;
return ISMINE_NO;
}
if (keystore.HaveKey(keyID))
return ISMINE_SPENDABLE;
break;
case TX_WITNESS_V0_KEYHASH:
{
if (!keystore.HaveCScript(CScriptID(CScript() << OP_0 << vSolutions[0]))) {
// We do not support bare witness outputs unless the P2SH version of it would be
// acceptable as well. This protects against matching before segwit activates.
// This also applies to the P2WSH case.
break;
}
isminetype ret = ::IsMine(keystore, GetScriptForDestination(CKeyID(uint160(vSolutions[0]))), isInvalid, SIGVERSION_WITNESS_V0);
if (ret == ISMINE_SPENDABLE || ret == ISMINE_WATCH_SOLVABLE || (ret == ISMINE_NO && isInvalid))
return ret;
break;
}
case TX_PUBKEYHASH:
keyID = CKeyID(uint160(vSolutions[0]));
if (sigversion != SIGVERSION_BASE) {
CPubKey pubkey;
if (keystore.GetPubKey(keyID, pubkey) && !pubkey.IsCompressed()) {
isInvalid = true;
return ISMINE_NO;
}
}
if (keystore.HaveKey(keyID))
return ISMINE_SPENDABLE;
break;
case TX_SCRIPTHASH:
{
CScriptID scriptID = CScriptID(uint160(vSolutions[0]));
CScript subscript;
if (keystore.GetCScript(scriptID, subscript)) {
isminetype ret = IsMine(keystore, subscript, isInvalid);
if (ret == ISMINE_SPENDABLE || ret == ISMINE_WATCH_SOLVABLE || (ret == ISMINE_NO && isInvalid))
return ret;
}
break;
}
case TX_WITNESS_V0_SCRIPTHASH:
{
if (!keystore.HaveCScript(CScriptID(CScript() << OP_0 << vSolutions[0]))) {
break;
}
uint160 hash;
CRIPEMD160().Write(&vSolutions[0][0], vSolutions[0].size()).Finalize(hash.begin());
CScriptID scriptID = CScriptID(hash);
CScript subscript;
if (keystore.GetCScript(scriptID, subscript)) {
isminetype ret = IsMine(keystore, subscript, isInvalid, SIGVERSION_WITNESS_V0);
if (ret == ISMINE_SPENDABLE || ret == ISMINE_WATCH_SOLVABLE || (ret == ISMINE_NO && isInvalid))
return ret;
}
break;
}
case TX_MULTISIG:
{
// Only consider transactions "mine" if we own ALL the
// keys involved. Multi-signature transactions that are
// partially owned (somebody else has a key that can spend
// them) enable spend-out-from-under-you attacks, especially
// in shared-wallet situations.
std::vector<valtype> keys(vSolutions.begin()+1, vSolutions.begin()+vSolutions.size()-1);
if (sigversion != SIGVERSION_BASE) {
for (size_t i = 0; i < keys.size(); i++) {
if (keys[i].size() != 33) {
isInvalid = true;
return ISMINE_NO;
}
}
}
if (HaveKeys(keys, keystore) == keys.size())
return ISMINE_SPENDABLE;
break;
}
}
if (keystore.HaveWatchOnly(scriptPubKey)) {
// TODO: This could be optimized some by doing some work after the above solver
SignatureData sigs;
return ProduceSignature(DummySignatureCreator(&keystore), scriptPubKey, sigs) ? ISMINE_WATCH_SOLVABLE : ISMINE_WATCH_UNSOLVABLE;
}
return ISMINE_NO;
}
BOOST_FIXTURE_TEST_CASE(checkinputs_test, TestChain100Setup)
{
// Test that passing CheckInputs with one set of script flags doesn't imply
// that we would pass again with a different set of flags.
{
LOCK(cs_main);
InitScriptExecutionCache();
}
CScript p2pk_scriptPubKey = CScript() << ToByteVector(coinbaseKey.GetPubKey()) << OP_CHECKSIG;
CScript p2sh_scriptPubKey = GetScriptForDestination(CScriptID(p2pk_scriptPubKey));
CScript p2pkh_scriptPubKey = GetScriptForDestination(coinbaseKey.GetPubKey().GetID());
CScript p2wpkh_scriptPubKey = GetScriptForWitness(p2pkh_scriptPubKey);
CBasicKeyStore keystore;
keystore.AddKey(coinbaseKey);
keystore.AddCScript(p2pk_scriptPubKey);
// flags to test: SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY, SCRIPT_VERIFY_CHECKSEQUENCE_VERIFY, SCRIPT_VERIFY_NULLDUMMY, uncompressed pubkey thing
// Create 2 outputs that match the three scripts above, spending the first
// coinbase tx.
CMutableTransaction spend_tx;
spend_tx.nVersion = 1;
spend_tx.vin.resize(1);
spend_tx.vin[0].prevout.hash = m_coinbase_txns[0]->GetHash();
spend_tx.vin[0].prevout.n = 0;
spend_tx.vout.resize(4);
spend_tx.vout[0].nValue = 11*CENT;
spend_tx.vout[0].scriptPubKey = p2sh_scriptPubKey;
spend_tx.vout[1].nValue = 11*CENT;
spend_tx.vout[1].scriptPubKey = p2wpkh_scriptPubKey;
spend_tx.vout[2].nValue = 11*CENT;
spend_tx.vout[2].scriptPubKey = CScript() << OP_CHECKLOCKTIMEVERIFY << OP_DROP << ToByteVector(coinbaseKey.GetPubKey()) << OP_CHECKSIG;
spend_tx.vout[3].nValue = 11*CENT;
spend_tx.vout[3].scriptPubKey = CScript() << OP_CHECKSEQUENCEVERIFY << OP_DROP << ToByteVector(coinbaseKey.GetPubKey()) << OP_CHECKSIG;
// Sign, with a non-DER signature
{
std::vector<unsigned char> vchSig;
uint256 hash = SignatureHash(p2pk_scriptPubKey, spend_tx, 0, SIGHASH_ALL, 0, SigVersion::BASE);
BOOST_CHECK(coinbaseKey.Sign(hash, vchSig));
vchSig.push_back((unsigned char) 0); // padding byte makes this non-DER
vchSig.push_back((unsigned char)SIGHASH_ALL);
spend_tx.vin[0].scriptSig << vchSig;
}
// Test that invalidity under a set of flags doesn't preclude validity
// under other (eg consensus) flags.
// spend_tx is invalid according to DERSIG
{
LOCK(cs_main);
CValidationState state;
PrecomputedTransactionData ptd_spend_tx(spend_tx);
BOOST_CHECK(!CheckInputs(spend_tx, state, pcoinsTip.get(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_DERSIG, true, true, ptd_spend_tx, nullptr));
// If we call again asking for scriptchecks (as happens in
// ConnectBlock), we should add a script check object for this -- we're
// not caching invalidity (if that changes, delete this test case).
std::vector<CScriptCheck> scriptchecks;
BOOST_CHECK(CheckInputs(spend_tx, state, pcoinsTip.get(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_DERSIG, true, true, ptd_spend_tx, &scriptchecks));
BOOST_CHECK_EQUAL(scriptchecks.size(), 1U);
// Test that CheckInputs returns true iff DERSIG-enforcing flags are
// not present. Don't add these checks to the cache, so that we can
// test later that block validation works fine in the absence of cached
// successes.
ValidateCheckInputsForAllFlags(spend_tx, SCRIPT_VERIFY_DERSIG | SCRIPT_VERIFY_LOW_S | SCRIPT_VERIFY_STRICTENC, false);
}
// And if we produce a block with this tx, it should be valid (DERSIG not
// enabled yet), even though there's no cache entry.
CBlock block;
block = CreateAndProcessBlock({spend_tx}, p2pk_scriptPubKey);
BOOST_CHECK(chainActive.Tip()->GetBlockHash() == block.GetHash());
BOOST_CHECK(pcoinsTip->GetBestBlock() == block.GetHash());
LOCK(cs_main);
// Test P2SH: construct a transaction that is valid without P2SH, and
// then test validity with P2SH.
{
CMutableTransaction invalid_under_p2sh_tx;
invalid_under_p2sh_tx.nVersion = 1;
invalid_under_p2sh_tx.vin.resize(1);
invalid_under_p2sh_tx.vin[0].prevout.hash = spend_tx.GetHash();
invalid_under_p2sh_tx.vin[0].prevout.n = 0;
invalid_under_p2sh_tx.vout.resize(1);
invalid_under_p2sh_tx.vout[0].nValue = 11*CENT;
invalid_under_p2sh_tx.vout[0].scriptPubKey = p2pk_scriptPubKey;
std::vector<unsigned char> vchSig2(p2pk_scriptPubKey.begin(), p2pk_scriptPubKey.end());
invalid_under_p2sh_tx.vin[0].scriptSig << vchSig2;
ValidateCheckInputsForAllFlags(invalid_under_p2sh_tx, SCRIPT_VERIFY_P2SH, true);
}
// Test CHECKLOCKTIMEVERIFY
{
CMutableTransaction invalid_with_cltv_tx;
invalid_with_cltv_tx.nVersion = 1;
invalid_with_cltv_tx.nLockTime = 100;
invalid_with_cltv_tx.vin.resize(1);
invalid_with_cltv_tx.vin[0].prevout.hash = spend_tx.GetHash();
invalid_with_cltv_tx.vin[0].prevout.n = 2;
invalid_with_cltv_tx.vin[0].nSequence = 0;
invalid_with_cltv_tx.vout.resize(1);
invalid_with_cltv_tx.vout[0].nValue = 11*CENT;
invalid_with_cltv_tx.vout[0].scriptPubKey = p2pk_scriptPubKey;
// Sign
std::vector<unsigned char> vchSig;
uint256 hash = SignatureHash(spend_tx.vout[2].scriptPubKey, invalid_with_cltv_tx, 0, SIGHASH_ALL, 0, SigVersion::BASE);
BOOST_CHECK(coinbaseKey.Sign(hash, vchSig));
vchSig.push_back((unsigned char)SIGHASH_ALL);
invalid_with_cltv_tx.vin[0].scriptSig = CScript() << vchSig << 101;
ValidateCheckInputsForAllFlags(invalid_with_cltv_tx, SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY, true);
// Make it valid, and check again
invalid_with_cltv_tx.vin[0].scriptSig = CScript() << vchSig << 100;
CValidationState state;
PrecomputedTransactionData txdata(invalid_with_cltv_tx);
BOOST_CHECK(CheckInputs(invalid_with_cltv_tx, state, pcoinsTip.get(), true, SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY, true, true, txdata, nullptr));
}
// TEST CHECKSEQUENCEVERIFY
{
CMutableTransaction invalid_with_csv_tx;
invalid_with_csv_tx.nVersion = 2;
invalid_with_csv_tx.vin.resize(1);
invalid_with_csv_tx.vin[0].prevout.hash = spend_tx.GetHash();
invalid_with_csv_tx.vin[0].prevout.n = 3;
invalid_with_csv_tx.vin[0].nSequence = 100;
invalid_with_csv_tx.vout.resize(1);
invalid_with_csv_tx.vout[0].nValue = 11*CENT;
invalid_with_csv_tx.vout[0].scriptPubKey = p2pk_scriptPubKey;
// Sign
std::vector<unsigned char> vchSig;
uint256 hash = SignatureHash(spend_tx.vout[3].scriptPubKey, invalid_with_csv_tx, 0, SIGHASH_ALL, 0, SigVersion::BASE);
BOOST_CHECK(coinbaseKey.Sign(hash, vchSig));
vchSig.push_back((unsigned char)SIGHASH_ALL);
invalid_with_csv_tx.vin[0].scriptSig = CScript() << vchSig << 101;
ValidateCheckInputsForAllFlags(invalid_with_csv_tx, SCRIPT_VERIFY_CHECKSEQUENCEVERIFY, true);
// Make it valid, and check again
invalid_with_csv_tx.vin[0].scriptSig = CScript() << vchSig << 100;
CValidationState state;
PrecomputedTransactionData txdata(invalid_with_csv_tx);
BOOST_CHECK(CheckInputs(invalid_with_csv_tx, state, pcoinsTip.get(), true, SCRIPT_VERIFY_CHECKSEQUENCEVERIFY, true, true, txdata, nullptr));
}
// TODO: add tests for remaining script flags
// Test that passing CheckInputs with a valid witness doesn't imply success
// for the same tx with a different witness.
{
CMutableTransaction valid_with_witness_tx;
valid_with_witness_tx.nVersion = 1;
valid_with_witness_tx.vin.resize(1);
valid_with_witness_tx.vin[0].prevout.hash = spend_tx.GetHash();
valid_with_witness_tx.vin[0].prevout.n = 1;
valid_with_witness_tx.vout.resize(1);
valid_with_witness_tx.vout[0].nValue = 11*CENT;
valid_with_witness_tx.vout[0].scriptPubKey = p2pk_scriptPubKey;
// Sign
SignatureData sigdata;
ProduceSignature(keystore, MutableTransactionSignatureCreator(&valid_with_witness_tx, 0, 11*CENT, SIGHASH_ALL), spend_tx.vout[1].scriptPubKey, sigdata);
UpdateTransaction(valid_with_witness_tx, 0, sigdata);
// This should be valid under all script flags.
ValidateCheckInputsForAllFlags(valid_with_witness_tx, 0, true);
// Remove the witness, and check that it is now invalid.
valid_with_witness_tx.vin[0].scriptWitness.SetNull();
ValidateCheckInputsForAllFlags(valid_with_witness_tx, SCRIPT_VERIFY_WITNESS, true);
}
{
// Test a transaction with multiple inputs.
CMutableTransaction tx;
tx.nVersion = 1;
tx.vin.resize(2);
tx.vin[0].prevout.hash = spend_tx.GetHash();
tx.vin[0].prevout.n = 0;
tx.vin[1].prevout.hash = spend_tx.GetHash();
tx.vin[1].prevout.n = 1;
tx.vout.resize(1);
tx.vout[0].nValue = 22*CENT;
tx.vout[0].scriptPubKey = p2pk_scriptPubKey;
// Sign
for (int i=0; i<2; ++i) {
SignatureData sigdata;
ProduceSignature(keystore, MutableTransactionSignatureCreator(&tx, i, 11*CENT, SIGHASH_ALL), spend_tx.vout[i].scriptPubKey, sigdata);
UpdateTransaction(tx, i, sigdata);
}
// This should be valid under all script flags
ValidateCheckInputsForAllFlags(tx, 0, true);
// Check that if the second input is invalid, but the first input is
// valid, the transaction is not cached.
// Invalidate vin[1]
tx.vin[1].scriptWitness.SetNull();
CValidationState state;
PrecomputedTransactionData txdata(tx);
// This transaction is now invalid under segwit, because of the second input.
BOOST_CHECK(!CheckInputs(tx, state, pcoinsTip.get(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true, true, txdata, nullptr));
std::vector<CScriptCheck> scriptchecks;
// Make sure this transaction was not cached (ie because the first
// input was valid)
BOOST_CHECK(CheckInputs(tx, state, pcoinsTip.get(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true, true, txdata, &scriptchecks));
// Should get 2 script checks back -- caching is on a whole-transaction basis.
BOOST_CHECK_EQUAL(scriptchecks.size(), 2U);
}
}
static void MutateTxAddOutMultiSig(CMutableTransaction& tx, const std::string& strInput)
{
// Separate into VALUE:REQUIRED:NUMKEYS:PUBKEY1:PUBKEY2:....[:FLAGS]
std::vector<std::string> vStrInputParts;
boost::split(vStrInputParts, strInput, boost::is_any_of(":"));
// Check that there are enough parameters
if (vStrInputParts.size()<3)
throw std::runtime_error("Not enough multisig parameters");
// Extract and validate VALUE
CAmount value = ExtractAndValidateValue(vStrInputParts[0]);
// Extract REQUIRED
uint32_t required = stoul(vStrInputParts[1]);
// Extract NUMKEYS
uint32_t numkeys = stoul(vStrInputParts[2]);
// Validate there are the correct number of pubkeys
if (vStrInputParts.size() < numkeys + 3)
throw std::runtime_error("incorrect number of multisig pubkeys");
if (required < 1 || required > 20 || numkeys < 1 || numkeys > 20 || numkeys < required)
throw std::runtime_error("multisig parameter mismatch. Required " \
+ std::to_string(required) + " of " + std::to_string(numkeys) + "signatures.");
// extract and validate PUBKEYs
std::vector<CPubKey> pubkeys;
for(int pos = 1; pos <= int(numkeys); pos++) {
CPubKey pubkey(ParseHex(vStrInputParts[pos + 2]));
if (!pubkey.IsFullyValid())
throw std::runtime_error("invalid TX output pubkey");
pubkeys.push_back(pubkey);
}
// Extract FLAGS
bool bSegWit = false;
bool bScriptHash = false;
if (vStrInputParts.size() == numkeys + 4) {
std::string flags = vStrInputParts.back();
bSegWit = (flags.find('W') != std::string::npos);
bScriptHash = (flags.find('S') != std::string::npos);
}
else if (vStrInputParts.size() > numkeys + 4) {
// Validate that there were no more parameters passed
throw std::runtime_error("Too many parameters");
}
CScript scriptPubKey = GetScriptForMultisig(required, pubkeys);
if (bSegWit) {
for (CPubKey& pubkey : pubkeys) {
if (!pubkey.IsCompressed()) {
throw std::runtime_error("Uncompressed pubkeys are not useable for SegWit outputs");
}
}
// Call GetScriptForWitness() to build a P2WSH scriptPubKey
scriptPubKey = GetScriptForWitness(scriptPubKey);
}
if (bScriptHash) {
if (scriptPubKey.size() > MAX_SCRIPT_ELEMENT_SIZE) {
throw std::runtime_error(strprintf(
"redeemScript exceeds size limit: %d > %d", scriptPubKey.size(), MAX_SCRIPT_ELEMENT_SIZE));
}
// Get the ID for the script, and then construct a P2SH destination for it.
scriptPubKey = GetScriptForDestination(CScriptID(scriptPubKey));
}
// construct TxOut, append to transaction output list
CTxOut txout(value, scriptPubKey);
tx.vout.push_back(txout);
}
