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Merge pull request #6346

627468d Add support for data-based outputs (OP_RETURN) to bitcoin-tx. (Pavel Janík)
d707853 Add OP_RETURN support in createrawtransaction RPC call, add tests. (Pavel Janík)
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laanwj committed Aug 10, 2015
2 parents 0201a79 + 627468d commit 6bb28058d3ede4ff0b8e6d5315f0c2386f3e1131
@@ -15,6 +15,8 @@ EXTRA_DIST += \
test/data/tx394b54bb.hex \
test/data/txcreate1.hex \
test/data/txcreate2.hex \
test/data/txcreatedata1.hex \
test/data/txcreatedata2.hex \
test/data/txcreatesign.hex

JSON_TEST_FILES = \
@@ -70,6 +70,7 @@ static bool AppInitRawTx(int argc, char* argv[])
strUsage += HelpMessageOpt("locktime=N", _("Set TX lock time to N"));
strUsage += HelpMessageOpt("nversion=N", _("Set TX version to N"));
strUsage += HelpMessageOpt("outaddr=VALUE:ADDRESS", _("Add address-based output to TX"));
strUsage += HelpMessageOpt("outdata=[VALUE:]DATA", _("Add data-based output to TX"));
strUsage += HelpMessageOpt("outscript=VALUE:SCRIPT", _("Add raw script output to TX"));
strUsage += HelpMessageOpt("sign=SIGHASH-FLAGS", _("Add zero or more signatures to transaction") + ". " +
_("This command requires JSON registers:") +
@@ -231,6 +232,35 @@ static void MutateTxAddOutAddr(CMutableTransaction& tx, const string& strInput)
tx.vout.push_back(txout);
}

static void MutateTxAddOutData(CMutableTransaction& tx, const string& strInput)
{
CAmount value = 0;

// separate [VALUE:]DATA in string
size_t pos = strInput.find(':');

if (pos==0)
throw runtime_error("TX output value not specified");

if (pos != string::npos) {
// extract and validate VALUE
string strValue = strInput.substr(0, pos);
if (!ParseMoney(strValue, value))
throw runtime_error("invalid TX output value");
}

// extract and validate DATA
string strData = strInput.substr(pos + 1, string::npos);

if (!IsHex(strData))
throw 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 string& strInput)
{
// separate VALUE:SCRIPT in string
@@ -470,6 +500,8 @@ static void MutateTx(CMutableTransaction& tx, const string& command,
MutateTxDelOutput(tx, commandVal);
else if (command == "outaddr")
MutateTxAddOutAddr(tx, commandVal);
else if (command == "outdata")
MutateTxAddOutData(tx, commandVal);
else if (command == "outscript")
MutateTxAddOutScript(tx, commandVal);

@@ -318,8 +318,9 @@ UniValue createrawtransaction(const UniValue& params, bool fHelp)
{
if (fHelp || params.size() != 2)
throw runtime_error(
"createrawtransaction [{\"txid\":\"id\",\"vout\":n},...] {\"address\":amount,...}\n"
"\nCreate a transaction spending the given inputs and sending to the given addresses.\n"
"createrawtransaction [{\"txid\":\"id\",\"vout\":n},...] {\"address\":amount,\"data\":\"hex\",...}\n"
"\nCreate a transaction spending the given inputs and creating new outputs.\n"
"Outputs can be addresses or data.\n"
"Returns hex-encoded raw transaction.\n"
"Note that the transaction's inputs are not signed, and\n"
"it is not stored in the wallet or transmitted to the network.\n"
@@ -328,23 +329,25 @@ UniValue createrawtransaction(const UniValue& params, bool fHelp)
"1. \"transactions\" (string, required) A json array of json objects\n"
" [\n"
" {\n"
" \"txid\":\"id\", (string, required) The transaction id\n"
" \"txid\":\"id\", (string, required) The transaction id\n"
" \"vout\":n (numeric, required) The output number\n"
" }\n"
" ,...\n"
" ]\n"
"2. \"addresses\" (string, required) a json object with addresses as keys and amounts as values\n"
"2. \"outputs\" (string, required) a json object with outputs\n"
" {\n"
" \"address\": x.xxx (numeric, required) The key is the bitcoin address, the value is the " + CURRENCY_UNIT + " amount\n"
" ,...\n"
" \"data\": \"hex\", (string, required) The key is \"data\", the value is hex encoded data\n"
" ...\n"
" }\n"

"\nResult:\n"
"\"transaction\" (string) hex string of the transaction\n"

"\nExamples\n"
+ HelpExampleCli("createrawtransaction", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\" \"{\\\"address\\\":0.01}\"")
+ HelpExampleCli("createrawtransaction", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\" \"{\\\"data\\\":\\\"00010203\\\"}\"")
+ HelpExampleRpc("createrawtransaction", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\", \"{\\\"address\\\":0.01}\"")
+ HelpExampleRpc("createrawtransaction", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\", \"{\\\"data\\\":\\\"00010203\\\"}\"")
);

LOCK(cs_main);
@@ -375,19 +378,27 @@ UniValue createrawtransaction(const UniValue& params, bool fHelp)
set<CBitcoinAddress> setAddress;
vector<string> addrList = sendTo.getKeys();
BOOST_FOREACH(const string& name_, addrList) {
CBitcoinAddress address(name_);
if (!address.IsValid())
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, string("Invalid Bitcoin address: ")+name_);

if (setAddress.count(address))
throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, duplicated address: ")+name_);
setAddress.insert(address);
if (name_ == "data") {
std::vector<unsigned char> data = ParseHexV(sendTo[name_].getValStr(),"Data");

CTxOut out(0, CScript() << OP_RETURN << data);
rawTx.vout.push_back(out);
} else {
CBitcoinAddress address(name_);
if (!address.IsValid())
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, string("Invalid Bitcoin address: ")+name_);

CScript scriptPubKey = GetScriptForDestination(address.Get());
CAmount nAmount = AmountFromValue(sendTo[name_]);
if (setAddress.count(address))
throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, duplicated address: ")+name_);
setAddress.insert(address);

CTxOut out(nAmount, scriptPubKey);
rawTx.vout.push_back(out);
CScript scriptPubKey = GetScriptForDestination(address.Get());
CAmount nAmount = AmountFromValue(sendTo[name_]);

CTxOut out(nAmount, scriptPubKey);
rawTx.vout.push_back(out);
}
}

return EncodeHexTx(rawTx);
@@ -56,5 +56,35 @@
"sign=ALL",
"outaddr=0.001:193P6LtvS4nCnkDvM9uXn1gsSRqh4aDAz7"],
"output_cmp": "txcreatesign.hex"
},
{ "exec": "./bitcoin-tx",
"args":
["-create",
"in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
"outdata=4:badhexdata"],
"return_code": 1
},
{ "exec": "./bitcoin-tx",
"args":
["-create",
"in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
"outdata=badhexdata"],
"return_code": 1
},
{ "exec": "./bitcoin-tx",
"args":
["-create",
"in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
"outaddr=0.18:13tuJJDR2RgArmgfv6JScSdreahzgc4T6o",
"outdata=4:54686973204f505f52455455524e207472616e73616374696f6e206f7574707574207761732063726561746564206279206d6f646966696564206372656174657261777472616e73616374696f6e2e"],
"output_cmp": "txcreatedata1.hex"
},
{ "exec": "./bitcoin-tx",
"args":
["-create",
"in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
"outaddr=0.18:13tuJJDR2RgArmgfv6JScSdreahzgc4T6o",
"outdata=54686973204f505f52455455524e207472616e73616374696f6e206f7574707574207761732063726561746564206279206d6f646966696564206372656174657261777472616e73616374696f6e2e"],
"output_cmp": "txcreatedata2.hex"
}
]
@@ -0,0 +1 @@
01000000011f5c38dfcf6f1a5f5a87c416076d392c87e6d41970d5ad5e477a02d66bde97580000000000ffffffff0280a81201000000001976a9141fc11f39be1729bf973a7ab6a615ca4729d6457488ac0084d71700000000526a4c4f54686973204f505f52455455524e207472616e73616374696f6e206f7574707574207761732063726561746564206279206d6f646966696564206372656174657261777472616e73616374696f6e2e00000000
@@ -0,0 +1 @@
01000000011f5c38dfcf6f1a5f5a87c416076d392c87e6d41970d5ad5e477a02d66bde97580000000000ffffffff0280a81201000000001976a9141fc11f39be1729bf973a7ab6a615ca4729d6457488ac0000000000000000526a4c4f54686973204f505f52455455524e207472616e73616374696f6e206f7574707574207761732063726561746564206279206d6f646966696564206372656174657261777472616e73616374696f6e2e00000000
@@ -110,6 +110,24 @@ BOOST_AUTO_TEST_CASE(rpc_rawsign)
BOOST_CHECK(find_value(r.get_obj(), "complete").get_bool() == true);
}

BOOST_AUTO_TEST_CASE(rpc_createraw_op_return)
{
BOOST_CHECK_NO_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"68656c6c6f776f726c64\"}"));

// Allow more than one data transaction output
BOOST_CHECK_NO_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"68656c6c6f776f726c64\",\"data\":\"68656c6c6f776f726c64\"}"));

// Key not "data" (bad address)
BOOST_CHECK_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"somedata\":\"68656c6c6f776f726c64\"}"), runtime_error);

// Bad hex encoding of data output
BOOST_CHECK_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"12345\"}"), runtime_error);
BOOST_CHECK_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"12345g\"}"), runtime_error);

// Data 81 bytes long
BOOST_CHECK_NO_THROW(CallRPC("createrawtransaction [{\"txid\":\"a3b807410df0b60fcb9736768df5823938b2f838694939ba45f3c0a1bff150ed\",\"vout\":0}] {\"data\":\"010203040506070809101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081\"}"));
}

BOOST_AUTO_TEST_CASE(rpc_format_monetary_values)
{
BOOST_CHECK(ValueFromAmount(0LL).write() == "0.00000000");

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