C++ CBasicKeyStore::AddCScript方法代码示例

// Explicit calculation which is used to test the wallet constant
// We get the same virtual size due to rounding(weight/4) for both use_max_sig values
static size_t CalculateNestedKeyhashInputSize(bool use_max_sig)
{
    // Generate ephemeral valid pubkey
    CKey key;
    key.MakeNewKey(true);
    CPubKey pubkey = key.GetPubKey();

    // Generate pubkey hash
    uint160 key_hash(Hash160(pubkey.begin(), pubkey.end()));

    // Create inner-script to enter into keystore. Key hash can't be 0...
    CScript inner_script = CScript() << OP_0 << std::vector<unsigned char>(key_hash.begin(), key_hash.end());

    // Create outer P2SH script for the output
    uint160 script_id(Hash160(inner_script.begin(), inner_script.end()));
    CScript script_pubkey = CScript() << OP_HASH160 << std::vector<unsigned char>(script_id.begin(), script_id.end()) << OP_EQUAL;

    // Add inner-script to key store and key to watchonly
    CBasicKeyStore keystore;
    keystore.AddCScript(inner_script);
    keystore.AddKeyPubKey(key, pubkey);

    // Fill in dummy signatures for fee calculation.
    SignatureData sig_data;

    if (!ProduceSignature(keystore, use_max_sig ? DUMMY_MAXIMUM_SIGNATURE_CREATOR : DUMMY_SIGNATURE_CREATOR, script_pubkey, sig_data)) {
        // We're hand-feeding it correct arguments; shouldn't happen
        assert(false);
    }

    CTxIn tx_in;
    UpdateInput(tx_in, sig_data);
    return (size_t)GetVirtualTransactionInputSize(tx_in);
}

static void MutateTxSign(CMutableTransaction& tx, const string& flagStr)
{
    int nHashType = SIGHASH_ALL;

    if (flagStr.size() > 0)
        if (!findSighashFlags(nHashType, flagStr))
            throw runtime_error("unknown sighash flag/sign option");

    vector<CTransaction> txVariants;
    txVariants.push_back(tx);

    // mergedTx will end up with all the signatures; it
    // starts as a clone of the raw tx:
    CMutableTransaction mergedTx(txVariants[0]);
    bool fComplete = true;
    CCoinsView viewDummy;
    CCoinsViewCache view(&viewDummy);

    if (!registers.count("privatekeys"))
        throw runtime_error("privatekeys register variable must be set.");
    bool fGivenKeys = false;
    CBasicKeyStore tempKeystore;
    UniValue keysObj = registers["privatekeys"];
    fGivenKeys = true;

    for (unsigned int kidx = 0; kidx < keysObj.size(); kidx++) {
        if (!keysObj[kidx].isStr())
            throw runtime_error("privatekey not a string");
        COnlineSecret vchSecret;
        bool fGood = vchSecret.SetString(keysObj[kidx].getValStr());
        if (!fGood)
            throw runtime_error("privatekey not valid");

        CKey key = vchSecret.GetKey();
        tempKeystore.AddKey(key);
    }

    // Add previous txouts given in the RPC call:
    if (!registers.count("prevtxs"))
        throw runtime_error("prevtxs register variable must be set.");
    UniValue prevtxsObj = registers["prevtxs"];
    {
        for (unsigned int previdx = 0; previdx < prevtxsObj.size(); previdx++) {
            UniValue prevOut = prevtxsObj[previdx];
            if (!prevOut.isObject())
                throw runtime_error("expected prevtxs internal object");

            map<string,UniValue::VType> types = boost::assign::map_list_of("txid", UniValue::VSTR)("vout",UniValue::VNUM)("scriptPubKey",UniValue::VSTR);
            if (!prevOut.checkObject(types))
                throw runtime_error("prevtxs internal object typecheck fail");

            uint256 txid = ParseHashUV(prevOut["txid"], "txid");

            int nOut = atoi(prevOut["vout"].getValStr());
            if (nOut < 0)
                throw runtime_error("vout must be positive");

            vector<unsigned char> pkData(ParseHexUV(prevOut["scriptPubKey"], "scriptPubKey"));
            CScript scriptPubKey(pkData.begin(), pkData.end());

            {
                CCoinsModifier coins = view.ModifyCoins(txid);
                if (coins->IsAvailable(nOut) && coins->vout[nOut].scriptPubKey != scriptPubKey) {
                    string err("Previous output scriptPubKey mismatch:\n");
                    err = err + coins->vout[nOut].scriptPubKey.ToString() + "\nvs:\n"+
                        scriptPubKey.ToString();
                    throw runtime_error(err);
                }
                if ((unsigned int)nOut >= coins->vout.size())
                    coins->vout.resize(nOut+1);
                coins->vout[nOut].scriptPubKey = scriptPubKey;
                coins->vout[nOut].nValue = 0; // we don't know the actual output value
            }

            // if redeemScript given and private keys given,
            // add redeemScript to the tempKeystore so it can be signed:
            if (fGivenKeys && scriptPubKey.IsPayToScriptHash() &&
                prevOut.exists("redeemScript")) {
                UniValue v = prevOut["redeemScript"];
                vector<unsigned char> rsData(ParseHexUV(v, "redeemScript"));
                CScript redeemScript(rsData.begin(), rsData.end());
                tempKeystore.AddCScript(redeemScript);
            }
        }
    }

    const CKeyStore& keystore = tempKeystore;

    bool fHashSingle = ((nHashType & ~SIGHASH_ANYONECANPAY) == SIGHASH_SINGLE);

    // Sign what we can:
    for (unsigned int i = 0; i < mergedTx.vin.size(); i++) {
        CTxIn& txin = mergedTx.vin[i];
        const CCoins* coins = view.AccessCoins(txin.prevout.hash);
        if (!coins || !coins->IsAvailable(txin.prevout.n)) {
            fComplete = false;
            continue;
        }
        const CScript& prevPubKey = coins->vout[txin.prevout.n].scriptPubKey;

//.........这里部分代码省略.........

//.........这里部分代码省略.........
            vector<unsigned char> pkData(ParseHexO(prevOut, "scriptPubKey"));
            CScript scriptPubKey(pkData.begin(), pkData.end());

            {
                CCoinsModifier coins = view.ModifyCoins(txid);
                if (coins->IsAvailable(nOut) && coins->vout[nOut].scriptPubKey != scriptPubKey) {
                    string err("Previous output scriptPubKey mismatch:\n");
                    err = err + ScriptToAsmStr(coins->vout[nOut].scriptPubKey) + "\nvs:\n"+
                        ScriptToAsmStr(scriptPubKey);
                    throw JSONRPCError(RPC_DESERIALIZATION_ERROR, err);
                }
                if ((unsigned int)nOut >= coins->vout.size())
                    coins->vout.resize(nOut+1);
                coins->vout[nOut].scriptPubKey = scriptPubKey;
                coins->vout[nOut].nValue = 0;
                if (prevOut.exists("amount")) {
                    coins->vout[nOut].nValue = AmountFromValue(find_value(prevOut, "amount"));
                }
            }

            // if redeemScript given and not using the local wallet (private keys
            // given), add redeemScript to the tempKeystore so it can be signed:
            if (fGivenKeys && (scriptPubKey.IsPayToScriptHash() || scriptPubKey.IsPayToWitnessScriptHash())) {
                RPCTypeCheckObj(prevOut,
                    {
                        {"txid", UniValueType(UniValue::VSTR)},
                        {"vout", UniValueType(UniValue::VNUM)},
                        {"scriptPubKey", UniValueType(UniValue::VSTR)},
                        {"redeemScript", UniValueType(UniValue::VSTR)},
                    });
                UniValue v = find_value(prevOut, "redeemScript");
                if (!v.isNull()) {
                    vector<unsigned char> rsData(ParseHexV(v, "redeemScript"));
                    CScript redeemScript(rsData.begin(), rsData.end());
                    tempKeystore.AddCScript(redeemScript);
                }
            }
        }
    }

#ifdef ENABLE_WALLET
    const CKeyStore& keystore = ((fGivenKeys || !pwalletMain) ? tempKeystore : *pwalletMain);
#else
    const CKeyStore& keystore = tempKeystore;
#endif

    int nHashType = SIGHASH_ALL;
    if (params.size() > 3 && !params[3].isNull()) {
        static map<string, int> mapSigHashValues =
            boost::assign::map_list_of
            (string("ALL"), int(SIGHASH_ALL))
            (string("ALL|ANYONECANPAY"), int(SIGHASH_ALL|SIGHASH_ANYONECANPAY))
            (string("NONE"), int(SIGHASH_NONE))
            (string("NONE|ANYONECANPAY"), int(SIGHASH_NONE|SIGHASH_ANYONECANPAY))
            (string("SINGLE"), int(SIGHASH_SINGLE))
            (string("SINGLE|ANYONECANPAY"), int(SIGHASH_SINGLE|SIGHASH_ANYONECANPAY))
            ;
        string strHashType = params[3].get_str();
        if (mapSigHashValues.count(strHashType))
            nHashType = mapSigHashValues[strHashType];
        else
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid sighash param");
    }

    bool fHashSingle = ((nHashType & ~SIGHASH_ANYONECANPAY) == SIGHASH_SINGLE);

    // Script verification errors
    UniValue vErrors(UniValue::VARR);

    // Use CTransaction for the constant parts of the
    // transaction to avoid rehashing.
    const CTransaction txConst(mergedTx);
    // Sign what we can:
    for (unsigned int i = 0; i < mergedTx.vin.size(); i++) {
        CTxIn& txin = mergedTx.vin[i];
        const CCoins* coins = view.AccessCoins(txin.prevout.hash);
        if (coins == NULL || !coins->IsAvailable(txin.prevout.n)) {
            TxInErrorToJSON(txin, vErrors, "Input not found or already spent");
            continue;
        }
        const CScript& prevPubKey = coins->vout[txin.prevout.n].scriptPubKey;
        const CAmount& amount = coins->vout[txin.prevout.n].nValue;

        SignatureData sigdata;
        // Only sign SIGHASH_SINGLE if there's a corresponding output:
        if (!fHashSingle || (i < mergedTx.vout.size()))
            ProduceSignature(MutableTransactionSignatureCreator(&keystore, &mergedTx, i, amount, nHashType), prevPubKey, sigdata);

        // ... and merge in other signatures:
        BOOST_FOREACH(const CMutableTransaction& txv, txVariants) {
            sigdata = CombineSignatures(prevPubKey, TransactionSignatureChecker(&txConst, i, amount), sigdata, DataFromTransaction(txv, i));
        }

        UpdateTransaction(mergedTx, i, sigdata);

        ScriptError serror = SCRIPT_ERR_OK;
        if (!VerifyScript(txin.scriptSig, prevPubKey, mergedTx.wit.vtxinwit.size() > i ? &mergedTx.wit.vtxinwit[i].scriptWitness : NULL, STANDARD_SCRIPT_VERIFY_FLAGS, TransactionSignatureChecker(&txConst, i, amount), &serror)) {
            TxInErrorToJSON(txin, vErrors, ScriptErrorString(serror));
        }
    }

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);
    }

//.........这里部分代码省略.........

bool MultisigDialog::signMultisigTx(CMutableTransaction& tx, string& errorOut, QVBoxLayout* keyList)
{
    //will be set false if all inputs are not fully signed(valid)
    bool fComplete = true;

    //if keyslist is not default value AND has items in list then true
    bool fGivenKeys = (keyList != nullptr) && (keyList->count() > 0);

    try{

        //copy of vin for reference before vin is mutated
        vector<CTxIn> oldVin(tx.vin);
        CBasicKeyStore privKeystore;

        //if keys were given, attempt to collect redeem and scriptpubkey
        if(fGivenKeys){
            for(int i = 0; i < keyList->count(); i++){
                QWidget* keyFrame = qobject_cast<QWidget*>(keyList->itemAt(i)->widget());
                QLineEdit* key = keyFrame->findChild<QLineEdit*>("key");
                CBitcoinSecret vchSecret;
                if (!vchSecret.SetString(key->text().toStdString()))
                    throw runtime_error("Invalid private key");
                CKey cKey = vchSecret.GetKey();
                if (!cKey.IsValid())
                    throw runtime_error("Private key outside allowed range");
                privKeystore.AddKey(cKey);
            }

            for(CTxIn& txin : tx.vin){
                //get inputs
                CTransaction txVin;
                uint256 hashBlock;
                if (!GetTransaction(txin.prevout.hash, txVin, hashBlock, true))
                    throw runtime_error("txin could not be found");

                if (hashBlock == 0)
                    throw runtime_error("txin is unconfirmed");

                //get pubkey from input
                CScript prevPubKey = txVin.vout[txin.prevout.n].scriptPubKey;

                //get payment destination
                CTxDestination address;
                if(!ExtractDestination(prevPubKey, address)){
                    throw runtime_error("Could not find address for destination.");
                }

                //get redeem script related to destination
                CScriptID hash = boost::get<CScriptID>(address);
                CScript redeemScript;

                if (!pwalletMain->GetCScript(hash, redeemScript)){
                    errorOut = "could not redeem";
                }
                privKeystore.AddCScript(redeemScript);
            }
        }else{
            if (model->getEncryptionStatus() == model->Locked) {
                if (!model->requestUnlock(true).isValid()) {
                    // Unlock wallet was cancelled
                    throw runtime_error("Error: Your wallet is locked. Please enter the wallet passphrase first.");
                }
            }
        }

        //choose between local wallet and provided
        const CKeyStore& keystore = fGivenKeys ? privKeystore : *pwalletMain;

        //attempt to sign each input from local wallet
        int nIn = 0;
        for(CTxIn& txin : tx.vin){
            //get inputs
            CTransaction txVin;
            uint256 hashBlock;
            if (!GetTransaction(txin.prevout.hash, txVin, hashBlock, true))
                throw runtime_error("txin could not be found");

            if (hashBlock == 0)
                throw runtime_error("txin is unconfirmed");

            txin.scriptSig.clear();
            CScript prevPubKey = txVin.vout[txin.prevout.n].scriptPubKey;

            //sign what we can
            SignSignature(keystore, prevPubKey, tx, nIn);

            //merge in any previous signatures
            txin.scriptSig = CombineSignatures(prevPubKey, tx, nIn, txin.scriptSig, oldVin[nIn].scriptSig);

            if (!VerifyScript(txin.scriptSig, prevPubKey, STANDARD_SCRIPT_VERIFY_FLAGS, MutableTransactionSignatureChecker(&tx, nIn))){
                fComplete = false;
            }
            nIn++;
        }

        ui->signButtonStatus->setText(buildMultisigTxStatusString(fComplete, tx));

    }catch(const runtime_error& e){
        errorOut = string(e.what());
        fComplete = false;
//.........这里部分代码省略.........

static void MutateTxSign(CMutableTransaction& tx, const std::string& flagStr)
{
    int nHashType = SIGHASH_ALL;

    if (flagStr.size() > 0)
        if (!findSighashFlags(nHashType, flagStr))
            throw std::runtime_error("unknown sighash flag/sign option");

    // mergedTx will end up with all the signatures; it
    // starts as a clone of the raw tx:
    CMutableTransaction mergedTx{tx};
    const CMutableTransaction txv{tx};
    CCoinsView viewDummy;
    CCoinsViewCache view(&viewDummy);

    if (!registers.count("privatekeys"))
        throw std::runtime_error("privatekeys register variable must be set.");
    CBasicKeyStore tempKeystore;
    UniValue keysObj = registers["privatekeys"];

    for (unsigned int kidx = 0; kidx < keysObj.size(); kidx++) {
        if (!keysObj[kidx].isStr())
            throw std::runtime_error("privatekey not a std::string");
        CKey key = DecodeSecret(keysObj[kidx].getValStr());
        if (!key.IsValid()) {
            throw std::runtime_error("privatekey not valid");
        }
        tempKeystore.AddKey(key);
    }

    // Add previous txouts given in the RPC call:
    if (!registers.count("prevtxs"))
        throw std::runtime_error("prevtxs register variable must be set.");
    UniValue prevtxsObj = registers["prevtxs"];
    {
        for (unsigned int previdx = 0; previdx < prevtxsObj.size(); previdx++) {
            UniValue prevOut = prevtxsObj[previdx];
            if (!prevOut.isObject())
                throw std::runtime_error("expected prevtxs internal object");

            std::map<std::string, UniValue::VType> types = {
                {"txid", UniValue::VSTR},
                {"vout", UniValue::VNUM},
                {"scriptPubKey", UniValue::VSTR},
            };
            if (!prevOut.checkObject(types))
                throw std::runtime_error("prevtxs internal object typecheck fail");

            uint256 txid = ParseHashStr(prevOut["txid"].get_str(), "txid");

            int nOut = atoi(prevOut["vout"].getValStr());
            if (nOut < 0)
                throw std::runtime_error("vout must be positive");

            COutPoint out(txid, nOut);
            std::vector<unsigned char> pkData(ParseHexUV(prevOut["scriptPubKey"], "scriptPubKey"));
            CScript scriptPubKey(pkData.begin(), pkData.end());

            {
                const Coin& coin = view.AccessCoin(out);
                if (!coin.IsSpent() && coin.out.scriptPubKey != scriptPubKey) {
                    std::string err("Previous output scriptPubKey mismatch:\n");
                    err = err + ScriptToAsmStr(coin.out.scriptPubKey) + "\nvs:\n"+
                        ScriptToAsmStr(scriptPubKey);
                    throw std::runtime_error(err);
                }
                Coin newcoin;
                newcoin.out.scriptPubKey = scriptPubKey;
                newcoin.out.nValue = 0;
                if (prevOut.exists("amount")) {
                    newcoin.out.nValue = AmountFromValue(prevOut["amount"]);
                }
                newcoin.nHeight = 1;
                view.AddCoin(out, std::move(newcoin), true);
            }

            // if redeemScript given and private keys given,
            // add redeemScript to the tempKeystore so it can be signed:
            if ((scriptPubKey.IsPayToScriptHash() || scriptPubKey.IsPayToWitnessScriptHash()) &&
                prevOut.exists("redeemScript")) {
                UniValue v = prevOut["redeemScript"];
                std::vector<unsigned char> rsData(ParseHexUV(v, "redeemScript"));
                CScript redeemScript(rsData.begin(), rsData.end());
                tempKeystore.AddCScript(redeemScript);
            }
        }
    }

    const CKeyStore& keystore = tempKeystore;

    bool fHashSingle = ((nHashType & ~SIGHASH_ANYONECANPAY) == SIGHASH_SINGLE);

    // Sign what we can:
    for (unsigned int i = 0; i < mergedTx.vin.size(); i++) {
        CTxIn& txin = mergedTx.vin[i];
        const Coin& coin = view.AccessCoin(txin.prevout);
        if (coin.IsSpent()) {
            continue;
        }
        const CScript& prevPubKey = coin.out.scriptPubKey;
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        {   const UniValue& p = prevTxs[idx];
            if (!p.isObject())
                throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "expected object with {\"txid'\",\"vout\",\"scriptPubKey\"}");

            UniValue prevOut = p.get_obj();

            RPCTypeCheckObj(prevOut, boost::assign::map_list_of("txid", UniValue::VSTR)("vout", UniValue::VNUM)("scriptPubKey", UniValue::VSTR));

            string txidHex = find_value(prevOut, "txid").get_str();
            if (!IsHex(txidHex))
                throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "txid must be hexadecimal");
            uint256 txid;
            txid.SetHex(txidHex);

            int nOut = find_value(prevOut, "vout").get_int();
            if (nOut < 0)
                throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "vout must be positive");

            string pkHex = find_value(prevOut, "scriptPubKey").get_str();
            if (!IsHex(pkHex))
                throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "scriptPubKey must be hexadecimal");
            vector<unsigned char> pkData(ParseHex(pkHex));
            CScript scriptPubKey(pkData.begin(), pkData.end());

            COutPoint outpoint(txid, nOut);
            if (mapPrevOut.count(outpoint))
            {
                // Complain if scriptPubKey doesn't match
                if (mapPrevOut[outpoint] != scriptPubKey)
                {
                    string err("Previous output scriptPubKey mismatch:\n");
                    err = err + mapPrevOut[outpoint].ToString() + "\nvs:\n"+
                        scriptPubKey.ToString();
                    throw JSONRPCError(RPC_DESERIALIZATION_ERROR, err);
                }
            }
            else
                mapPrevOut[outpoint] = scriptPubKey;

            // if redeemScript given and not using the local wallet (private keys
            // given), add redeemScript to the tempKeystore so it can be signed:
            if (fGivenKeys && scriptPubKey.IsPayToScriptHash())
            {
                RPCTypeCheckObj(prevOut, map_list_of("txid", UniValue::VSTR)("vout", UniValue::VNUM)("scriptPubKey", UniValue::VSTR)("redeemScript",UniValue::VSTR));
                UniValue v = find_value(prevOut, "redeemScript");
                if (!v.isNull())
                {
                    vector<unsigned char> rsData(ParseHexV(v, "redeemScript"));
                    CScript redeemScript(rsData.begin(), rsData.end());
                    tempKeystore.AddCScript(redeemScript);
                }
            }
        }
    }

    int nHashType = SIGHASH_ALL;
    if (params.size() > 3 && params[3].isNull())
    {
        static map<string, int> mapSigHashValues =
            boost::assign::map_list_of
            (string("ALL"), int(SIGHASH_ALL))
            (string("ALL|ANYONECANPAY"), int(SIGHASH_ALL|SIGHASH_ANYONECANPAY))
            (string("NONE"), int(SIGHASH_NONE))
            (string("NONE|ANYONECANPAY"), int(SIGHASH_NONE|SIGHASH_ANYONECANPAY))
            (string("SINGLE"), int(SIGHASH_SINGLE))
            (string("SINGLE|ANYONECANPAY"), int(SIGHASH_SINGLE|SIGHASH_ANYONECANPAY))
            ;
        string strHashType = params[3].get_str();
        if (mapSigHashValues.count(strHashType))
            nHashType = mapSigHashValues[strHashType];
        else
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid sighash param");
    }

    bool fHashSingle = ((nHashType & ~SIGHASH_ANYONECANPAY) == SIGHASH_SINGLE);

    // Sign what we can:
    for (unsigned int i = 0; i < mergedTx.vin.size(); i++)
    {
        CTxIn& txin = mergedTx.vin[i];
        if (mapPrevOut.count(txin.prevout) == 0)
        {
            fComplete = false;
            continue;
        }
        const CScript& prevPubKey = mapPrevOut[txin.prevout];

        txin.scriptSig.clear();
        // Only sign SIGHASH_SINGLE if there's a corresponding output:
        if (!fHashSingle || (i < mergedTx.vout.size()))
            SignSignature(tempKeystore, prevPubKey, mergedTx, i, nHashType);

        // ... and merge in other signatures:
        BOOST_FOREACH(const CTransaction& txv, txVariants)
        {
            txin.scriptSig = CombineSignatures(prevPubKey, mergedTx, i, txin.scriptSig, txv.vin[i].scriptSig);
        }
        if (!VerifyScript(txin.scriptSig, prevPubKey, mergedTx, i, STANDARD_SCRIPT_VERIFY_FLAGS, 0, 0, 0))
            fComplete = false;
    }

//.........这里部分代码省略.........

            {
                const Coin& coin = view.AccessCoin(out);
                if (!coin.IsSpent() && coin.out.scriptPubKey != scriptPubKey) {
                    std::string err("Previous output scriptPubKey mismatch:\n");
                    err = err + ScriptToAsmStr(coin.out.scriptPubKey) + "\nvs:\n"+
                        ScriptToAsmStr(scriptPubKey);
                    throw JSONRPCError(RPC_DESERIALIZATION_ERROR, err);
                }
                Coin newcoin;
                newcoin.out.scriptPubKey = scriptPubKey;
                newcoin.out.nValue = 0;
                if (prevOut.exists("amount")) {
                    newcoin.out.nValue = AmountFromValue(find_value(prevOut, "amount"));
                }
                newcoin.nHeight = 1;
                view.AddCoin(out, std::move(newcoin), true);
            }

            // if redeemScript given and not using the local wallet (private keys
            // given), add redeemScript to the tempKeystore so it can be signed:
            if (fGivenKeys && (scriptPubKey.IsPayToScriptHash() || scriptPubKey.IsPayToWitnessScriptHash())) {
                RPCTypeCheckObj(prevOut,
                    {
                        {"txid", UniValueType(UniValue::VSTR)},
                        {"vout", UniValueType(UniValue::VNUM)},
                        {"scriptPubKey", UniValueType(UniValue::VSTR)},
                        {"redeemScript", UniValueType(UniValue::VSTR)},
                    });
                UniValue v = find_value(prevOut, "redeemScript");
                if (!v.isNull()) {
                    std::vector<unsigned char> rsData(ParseHexV(v, "redeemScript"));
                    CScript redeemScript(rsData.begin(), rsData.end());
                    tempKeystore.AddCScript(redeemScript);
                }
            }
        }
    }

#ifdef ENABLE_WALLET
    const CKeyStore& keystore = ((fGivenKeys || !pwallet) ? tempKeystore : *pwallet);
#else
    const CKeyStore& keystore = tempKeystore;
#endif

    int nHashType = SIGHASH_ALL;
    if (!request.params[3].isNull()) {
        static std::map<std::string, int> mapSigHashValues = {
            {std::string("ALL"), int(SIGHASH_ALL)},
            {std::string("ALL|ANYONECANPAY"), int(SIGHASH_ALL|SIGHASH_ANYONECANPAY)},
            {std::string("NONE"), int(SIGHASH_NONE)},
            {std::string("NONE|ANYONECANPAY"), int(SIGHASH_NONE|SIGHASH_ANYONECANPAY)},
            {std::string("SINGLE"), int(SIGHASH_SINGLE)},
            {std::string("SINGLE|ANYONECANPAY"), int(SIGHASH_SINGLE|SIGHASH_ANYONECANPAY)},
        };
        std::string strHashType = request.params[3].get_str();
        if (mapSigHashValues.count(strHashType))
            nHashType = mapSigHashValues[strHashType];
        else
            throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid sighash param");
    }

    bool fHashSingle = ((nHashType & ~SIGHASH_ANYONECANPAY) == SIGHASH_SINGLE);

    // Script verification errors
    UniValue vErrors(UniValue::VARR);