// Copyright (c) 2009-2016 The Bitcoin Core developers

// Distributed under the MIT software license, see the accompanying

// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#if defined(HAVE_CONFIG_H)

#include "config/bitcoin-config.h"

#endif

#include "base58.h"

#include "clientversion.h"

#include "coins.h"

#include "consensus/consensus.h"

#include "core_io.h"

#include "keystore.h"

#include "policy/policy.h"

#include "policy/rbf.h"

#include "primitives/transaction.h"

#include "script/script.h"

#include "script/sign.h"

#include <univalue.h>

#include "util.h"

#include "utilmoneystr.h"

#include "utilstrencodings.h"

#include <stdio.h>

#include <boost/algorithm/string.hpp>

static bool fCreateBlank;

static std::map<std::string,UniValue> registers;

static const int CONTINUE_EXECUTION=-1;

//

// This function returns either one of EXIT_ codes when it's expected to stop the process or

// CONTINUE_EXECUTION when it's expected to continue further.

//

static int AppInitRawTx(int argc, char* argv[])

{

//

// Parameters

//

ParseParameters(argc, argv);

// Check for -testnet or -regtest parameter (Params() calls are only valid after this clause)

try {

SelectParams(ChainNameFromCommandLine());

} catch (const std::exception& e) {

fprintf(stderr, "Error: %s\n", e.what());

return EXIT_FAILURE;

}

fCreateBlank = GetBoolArg("-create", false);

if (argc<2 || IsArgSet("-?") || IsArgSet("-h") || IsArgSet("-help"))

{

// First part of help message is specific to this utility

std::string strUsage = strprintf(_("%s bitcoin-tx utility version"), _(PACKAGE_NAME)) + " " + FormatFullVersion() + "\n\n" +

_("Usage:") + "\n" +

" bitcoin-tx [options] <hex-tx> [commands] " + _("Update hex-encoded bitcoin transaction") + "\n" +

" bitcoin-tx [options] -create [commands] " + _("Create hex-encoded bitcoin transaction") + "\n" +

"\n";

fprintf(stdout, "%s", strUsage.c_str());

strUsage = HelpMessageGroup(_("Options:"));

strUsage += HelpMessageOpt("-?", _("This help message"));

strUsage += HelpMessageOpt("-create", _("Create new, empty TX."));

strUsage += HelpMessageOpt("-json", _("Select JSON output"));

strUsage += HelpMessageOpt("-txid", _("Output only the hex-encoded transaction id of the resultant transaction."));

AppendParamsHelpMessages(strUsage);

fprintf(stdout, "%s", strUsage.c_str());

strUsage = HelpMessageGroup(_("Commands:"));

strUsage += HelpMessageOpt("delin=N", _("Delete input N from TX"));

strUsage += HelpMessageOpt("delout=N", _("Delete output N from TX"));

strUsage += HelpMessageOpt("in=TXID:VOUT(:SEQUENCE_NUMBER)", _("Add input to TX"));

strUsage += HelpMessageOpt("locktime=N", _("Set TX lock time to N"));

strUsage += HelpMessageOpt("nversion=N", _("Set TX version to N"));

strUsage += HelpMessageOpt("replaceable(=N)", _("Set RBF opt-in sequence number for input N (if not provided, opt-in all available inputs)"));

strUsage += HelpMessageOpt("outaddr=VALUE:ADDRESS", _("Add address-based output to TX"));

strUsage += HelpMessageOpt("outpubkey=VALUE:PUBKEY[:FLAGS]", _("Add pay-to-pubkey output to TX") + ". " +

_("Optionally add the \"W\" flag to produce a pay-to-witness-pubkey-hash output") + ". " +

_("Optionally add the \"S\" flag to wrap the output in a pay-to-script-hash."));

strUsage += HelpMessageOpt("outdata=[VALUE:]DATA", _("Add data-based output to TX"));

strUsage += HelpMessageOpt("outscript=VALUE:SCRIPT[:FLAGS]", _("Add raw script output to TX") + ". " +

_("Optionally add the \"W\" flag to produce a pay-to-witness-script-hash output") + ". " +

_("Optionally add the \"S\" flag to wrap the output in a pay-to-script-hash."));

strUsage += HelpMessageOpt("outmultisig=VALUE:REQUIRED:PUBKEYS:PUBKEY1:PUBKEY2:....[:FLAGS]", _("Add Pay To n-of-m Multi-sig output to TX. n = REQUIRED, m = PUBKEYS") + ". " +

_("Optionally add the \"W\" flag to produce a pay-to-witness-script-hash output") + ". " +

_("Optionally add the \"S\" flag to wrap the output in a pay-to-script-hash."));

strUsage += HelpMessageOpt("sign=SIGHASH-FLAGS", _("Add zero or more signatures to transaction") + ". " +

_("This command requires JSON registers:") +

_("prevtxs=JSON object") + ", " +

_("privatekeys=JSON object") + ". " +

_("See signrawtransaction docs for format of sighash flags, JSON objects."));

fprintf(stdout, "%s", strUsage.c_str());

strUsage = HelpMessageGroup(_("Register Commands:"));

strUsage += HelpMessageOpt("load=NAME:FILENAME", _("Load JSON file FILENAME into register NAME"));

strUsage += HelpMessageOpt("set=NAME:JSON-STRING", _("Set register NAME to given JSON-STRING"));

fprintf(stdout, "%s", strUsage.c_str());

if (argc < 2) {

fprintf(stderr, "Error: too few parameters\n");

return EXIT_FAILURE;

}

return EXIT_SUCCESS;

}

return CONTINUE_EXECUTION;

}

static void RegisterSetJson(const std::string& key, const std::string& rawJson)

{

UniValue val;

if (!val.read(rawJson)) {

std::string strErr = "Cannot parse JSON for key " + key;

throw std::runtime_error(strErr);

}

registers[key] = val;

}

static void RegisterSet(const std::string& strInput)

{

// separate NAME:VALUE in string

size_t pos = strInput.find(':');

if ((pos == std::string::npos) ||

(pos == 0) ||

(pos == (strInput.size() - 1)))

throw std::runtime_error("Register input requires NAME:VALUE");

std::string key = strInput.substr(0, pos);

std::string valStr = strInput.substr(pos + 1, std::string::npos);

RegisterSetJson(key, valStr);

}

static void RegisterLoad(const std::string& strInput)

{

// separate NAME:FILENAME in string

size_t pos = strInput.find(':');

if ((pos == std::string::npos) ||

(pos == 0) ||

(pos == (strInput.size() - 1)))

throw std::runtime_error("Register load requires NAME:FILENAME");

std::string key = strInput.substr(0, pos);

std::string filename = strInput.substr(pos + 1, std::string::npos);

FILE *f = fopen(filename.c_str(), "r");

if (!f) {

std::string strErr = "Cannot open file " + filename;

throw std::runtime_error(strErr);

}

// load file chunks into one big buffer

std::string valStr;

while ((!feof(f)) && (!ferror(f))) {

char buf[4096];

int bread = fread(buf, 1, sizeof(buf), f);

if (bread <= 0)

break;

valStr.insert(valStr.size(), buf, bread);

}

int error = ferror(f);

fclose(f);

if (error) {

std::string strErr = "Error reading file " + filename;

throw std::runtime_error(strErr);

}

// evaluate as JSON buffer register

RegisterSetJson(key, valStr);

}

static CAmount ExtractAndValidateValue(const std::string& strValue)

{

CAmount value;

if (!ParseMoney(strValue, value))

throw std::runtime_error("invalid TX output value");

return value;

}

static void MutateTxVersion(CMutableTransaction& tx, const std::string& cmdVal)

{

int64_t newVersion = atoi64(cmdVal);

if (newVersion < 1 || newVersion > CTransaction::MAX_STANDARD_VERSION)

throw std::runtime_error("Invalid TX version requested");

tx.nVersion = (int) newVersion;

}

static void MutateTxLocktime(CMutableTransaction& tx, const std::string& cmdVal)

{

int64_t newLocktime = atoi64(cmdVal);

if (newLocktime < 0LL || newLocktime > 0xffffffffLL)

throw std::runtime_error("Invalid TX locktime requested");

tx.nLockTime = (unsigned int) newLocktime;

}

static void MutateTxRBFOptIn(CMutableTransaction& tx, const std::string& strInIdx)

{

// parse requested index

int inIdx = atoi(strInIdx);

if (inIdx < 0 || inIdx >= (int)tx.vin.size()) {

throw std::runtime_error("Invalid TX input index '" + strInIdx + "'");

}

// set the nSequence to MAX_INT - 2 (= RBF opt in flag)

int cnt = 0;

for (CTxIn& txin : tx.vin) {

if (strInIdx == "" || cnt == inIdx) {

if (txin.nSequence > MAX_BIP125_RBF_SEQUENCE) {

txin.nSequence = MAX_BIP125_RBF_SEQUENCE;

}

}

++cnt;

}

}

static void MutateTxAddInput(CMutableTransaction& tx, const std::string& strInput)

{

std::vector<std::string> vStrInputParts;

boost::split(vStrInputParts, strInput, boost::is_any_of(":"));

// separate TXID:VOUT in string

if (vStrInputParts.size()<2)

throw std::runtime_error("TX input missing separator");

// extract and validate TXID

std::string strTxid = vStrInputParts[0];

if ((strTxid.size() != 64) || !IsHex(strTxid))

throw std::runtime_error("invalid TX input txid");

uint256 txid(uint256S(strTxid));

static const unsigned int minTxOutSz = 9;

static const unsigned int maxVout = MAX_BLOCK_WEIGHT / (WITNESS_SCALE_FACTOR * minTxOutSz);

// extract and validate vout

std::string strVout = vStrInputParts[1];

int vout = atoi(strVout);

if ((vout < 0) || (vout > (int)maxVout))

throw std::runtime_error("invalid TX input vout");

// extract the optional sequence number

uint32_t nSequenceIn=std::numeric_limits<unsigned int>::max();

if (vStrInputParts.size() > 2)

nSequenceIn = std::stoul(vStrInputParts[2]);

// append to transaction input list

CTxIn txin(txid, vout, CScript(), nSequenceIn);

tx.vin.push_back(txin);

}

static void MutateTxAddOutAddr(CMutableTransaction& tx, const std::string& strInput)

{

// Separate into VALUE:ADDRESS

std::vector<std::string> vStrInputParts;

boost::split(vStrInputParts, strInput, boost::is_any_of(":"));

if (vStrInputParts.size() != 2)

throw std::runtime_error("TX output missing or too many separators");

// Extract and validate VALUE

CAmount value = ExtractAndValidateValue(vStrInputParts[0]);

// extract and validate ADDRESS

std::string strAddr = vStrInputParts[1];

CBitcoinAddress addr(strAddr);

if (!addr.IsValid())

throw std::runtime_error("invalid TX output address");

// build standard output script via GetScriptForDestination()

CScript scriptPubKey = GetScriptForDestination(addr.Get());

// 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) {

// Call GetScriptForWitness() to build a P2WSH scriptPubKey

scriptPubKey = GetScriptForWitness(scriptPubKey);

}

if (bScriptHash) {

// Get the address for the redeem script, then call

// GetScriptForDestination() to construct a P2SH scriptPubKey.

CBitcoinAddress redeemScriptAddr(scriptPubKey);

scriptPubKey = GetScriptForDestination(redeemScriptAddr.Get());

}

// construct TxOut, append to transaction output list

CTxOut txout(value, scriptPubKey);

tx.vout.push_back(txout);

}

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) {

// Call GetScriptForWitness() to build a P2WSH scriptPubKey

scriptPubKey = GetScriptForWitness(scriptPubKey);

}

if (bScriptHash) {

// Get the address for the redeem script, then call

// GetScriptForDestination() to construct a P2SH scriptPubKey.

CBitcoinAddress addr(scriptPubKey);

scriptPubKey = GetScriptForDestination(addr.Get());

}

// construct TxOut, append to transaction output list

CTxOut txout(value, scriptPubKey);

tx.vout.push_back(txout);

}

static void MutateTxAddOutData(CMutableTransaction& tx, const std::string& strInput)

{

CAmount value = 0;

// separate [VALUE:]DATA in string

size_t pos = strInput.find(':');

if (pos==0)

throw std::runtime_error("TX output value not specified");

if (pos != std::string::npos) {

// Extract and validate VALUE

value = ExtractAndValidateValue(strInput.substr(0, pos));

}

// extract and validate DATA

std::string strData = strInput.substr(pos + 1, std::string::npos);

if (!IsHex(strData))

throw std::runtime_error("invalid TX output data");

std::vector<unsigned char> data = ParseHex(strData);

CTxOut txout(value, CScript() << OP_RETURN << data);

tx.vout.push_back(txout);

}

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 (bSegWit) {

scriptPubKey = GetScriptForWitness(scriptPubKey);

}

if (bScriptHash) {

CBitcoinAddress addr(scriptPubKey);

scriptPubKey = GetScriptForDestination(addr.Get());

}

// construct TxOut, append to transaction output list

CTxOut txout(value, scriptPubKey);

tx.vout.push_back(txout);

}

static void MutateTxDelInput(CMutableTransaction& tx, const std::string& strInIdx)

{

// parse requested deletion index

int inIdx = atoi(strInIdx);

if (inIdx < 0 || inIdx >= (int)tx.vin.size()) {

std::string strErr = "Invalid TX input index '" + strInIdx + "'";

throw std::runtime_error(strErr.c_str());

}

// delete input from transaction

tx.vin.erase(tx.vin.begin() + inIdx);

}

static void MutateTxDelOutput(CMutableTransaction& tx, const std::string& strOutIdx)

{

// parse requested deletion index

int outIdx = atoi(strOutIdx);

if (outIdx < 0 || outIdx >= (int)tx.vout.size()) {

std::string strErr = "Invalid TX output index '" + strOutIdx + "'";

throw std::runtime_error(strErr.c_str());

}

// delete output from transaction

tx.vout.erase(tx.vout.begin() + outIdx);

}

static const unsigned int N_SIGHASH_OPTS = 6;

static const struct {

const char *flagStr;

int flags;

} sighashOptions[N_SIGHASH_OPTS] = {

{"ALL", SIGHASH_ALL},

{"NONE", SIGHASH_NONE},

{"SINGLE", SIGHASH_SINGLE},

{"ALL|ANYONECANPAY", SIGHASH_ALL|SIGHASH_ANYONECANPAY},

{"NONE|ANYONECANPAY", SIGHASH_NONE|SIGHASH_ANYONECANPAY},

{"SINGLE|ANYONECANPAY", SIGHASH_SINGLE|SIGHASH_ANYONECANPAY},

};

static bool findSighashFlags(int& flags, const std::string& flagStr)

{

flags = 0;

for (unsigned int i = 0; i < N_SIGHASH_OPTS; i++) {

if (flagStr == sighashOptions[i].flagStr) {

flags = sighashOptions[i].flags;

return true;

}

}

return false;

}

static CAmount AmountFromValue(const UniValue& value)

{

if (!value.isNum() && !value.isStr())

throw std::runtime_error("Amount is not a number or string");

CAmount amount;

if (!ParseFixedPoint(value.getValStr(), 8, &amount))

throw std::runtime_error("Invalid amount");

if (!MoneyRange(amount))

throw std::runtime_error("Amount out of range");

return amount;

}

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");

std::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 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");

CBitcoinSecret vchSecret;

bool fGood = vchSecret.SetString(keysObj[kidx].getValStr());

if (!fGood)

throw std::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 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 = ParseHashUV(prevOut["txid"], "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()) {

fComplete = false;

continue;

}

const CScript& prevPubKey = coin.out.scriptPubKey;

const CAmount& amount = coin.out.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:

for (const CTransaction& txv : txVariants)

sigdata = CombineSignatures(prevPubKey, MutableTransactionSignatureChecker(&mergedTx, i, amount), sigdata, DataFromTransaction(txv, i));

UpdateTransaction(mergedTx, i, sigdata);

if (!VerifyScript(txin.scriptSig, prevPubKey, &txin.scriptWitness, STANDARD_SCRIPT_VERIFY_FLAGS, MutableTransactionSignatureChecker(&mergedTx, i, amount)))

fComplete = false;

}

if (fComplete) {

// do nothing... for now

// perhaps store this for later optional JSON output

}

tx = mergedTx;

}

class Secp256k1Init

{

ECCVerifyHandle globalVerifyHandle;

public:

Secp256k1Init() {

ECC_Start();

}

~Secp256k1Init() {

ECC_Stop();

}

};

static void MutateTx(CMutableTransaction& tx, const std::string& command,

const std::string& commandVal)

{

std::unique_ptr<Secp256k1Init> ecc;

if (command == "nversion")

MutateTxVersion(tx, commandVal);

else if (command == "locktime")

MutateTxLocktime(tx, commandVal);

else if (command == "replaceable") {

MutateTxRBFOptIn(tx, commandVal);

}

else if (command == "delin")

MutateTxDelInput(tx, commandVal);

else if (command == "in")

MutateTxAddInput(tx, commandVal);

else if (command == "delout")

MutateTxDelOutput(tx, commandVal);

else if (command == "outaddr")

MutateTxAddOutAddr(tx, commandVal);

else if (command == "outpubkey") {

if (!ecc) { ecc.reset(new Secp256k1Init()); }

MutateTxAddOutPubKey(tx, commandVal);

} else if (command == "outmultisig") {

if (!ecc) { ecc.reset(new Secp256k1Init()); }

MutateTxAddOutMultiSig(tx, commandVal);

} else if (command == "outscript")

MutateTxAddOutScript(tx, commandVal);

else if (command == "outdata")

MutateTxAddOutData(tx, commandVal);

else if (command == "sign") {

if (!ecc) { ecc.reset(new Secp256k1Init()); }

MutateTxSign(tx, commandVal);

}

else if (command == "load")

RegisterLoad(commandVal);

else if (command == "set")

RegisterSet(commandVal);

else

throw std::runtime_error("unknown command");

}

static void OutputTxJSON(const CTransaction& tx)

{

UniValue entry(UniValue::VOBJ);

TxToUniv(tx, uint256(), entry);

std::string jsonOutput = entry.write(4);

fprintf(stdout, "%s\n", jsonOutput.c_str());

}

static void OutputTxHash(const CTransaction& tx)

{

std::string strHexHash = tx.GetHash().GetHex(); // the hex-encoded transaction hash (aka the transaction id)

fprintf(stdout, "%s\n", strHexHash.c_str());

}

static void OutputTxHex(const CTransaction& tx)

{

std::string strHex = EncodeHexTx(tx);

fprintf(stdout, "%s\n", strHex.c_str());

}

static void OutputTx(const CTransaction& tx)

{

if (GetBoolArg("-json", false))

OutputTxJSON(tx);

else if (GetBoolArg("-txid", false))

OutputTxHash(tx);

else

OutputTxHex(tx);

}

static std::string readStdin()

{

char buf[4096];

std::string ret;

while (!feof(stdin)) {

size_t bread = fread(buf, 1, sizeof(buf), stdin);

ret.append(buf, bread);

if (bread < sizeof(buf))

break;

}

if (ferror(stdin))

throw std::runtime_error("error reading stdin");

boost::algorithm::trim_right(ret);

return ret;

}

static int CommandLineRawTx(int argc, char* argv[])

{

std::string strPrint;

int nRet = 0;

try {

// Skip switches; Permit common stdin convention "-"

while (argc > 1 && IsSwitchChar(argv[1][0]) &&

(argv[1][1] != 0)) {

argc--;

argv++;

}

CMutableTransaction tx;

int startArg;

if (!fCreateBlank) {

// require at least one param

if (argc < 2)

throw std::runtime_error("too few parameters");

// param: hex-encoded bitcoin transaction

std::string strHexTx(argv[1]);

if (strHexTx == "-") // "-" implies standard input

strHexTx = readStdin();

if (!DecodeHexTx(tx, strHexTx, true))

throw std::runtime_error("invalid transaction encoding");

startArg = 2;

} else

startArg = 1;

for (int i = startArg; i < argc; i++) {

std::string arg = argv[i];

std::string key, value;

size_t eqpos = arg.find('=');

if (eqpos == std::string::npos)

key = arg;

else {

key = arg.substr(0, eqpos);

value = arg.substr(eqpos + 1);

}

MutateTx(tx, key, value);

}

OutputTx(tx);

}

catch (const boost::thread_interrupted&) {

throw;

}

catch (const std::exception& e) {

strPrint = std::string("error: ") + e.what();

nRet = EXIT_FAILURE;

}

catch (...) {

PrintExceptionContinue(NULL, "CommandLineRawTx()");

throw;

}

if (strPrint != "") {

fprintf((nRet == 0 ? stdout : stderr), "%s\n", strPrint.c_str());

}

return nRet;

}

int main(int argc, char* argv[])

{

SetupEnvironment();

try {

int ret = AppInitRawTx(argc, argv);

if (ret != CONTINUE_EXECUTION)

return ret;

}

catch (const std::exception& e) {

PrintExceptionContinue(&e, "AppInitRawTx()");

return EXIT_FAILURE;

} catch (...) {

PrintExceptionContinue(NULL, "AppInitRawTx()");

return EXIT_FAILURE;

}

int ret = EXIT_FAILURE;

try {

ret = CommandLineRawTx(argc, argv);

}

catch (const std::exception& e) {

PrintExceptionContinue(&e, "CommandLineRawTx()");

} catch (...) {

PrintExceptionContinue(NULL, "CommandLineRawTx()");

}

return ret;

}