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Implement watchonly support in fundrawtransaction

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Some code and test cases stolen from
Bryan Bishop <bryan@ledgerx.com> (pull #5524).
This commit is contained in:
Matt Corallo 2015-04-23 21:42:49 -07:00
parent f5813bdd3e
commit 6bdb474dc9
5 changed files with 78 additions and 12 deletions
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59
qa/rpc-tests/fundrawtransaction.py
View file

@ -13,14 +13,15 @@ class RawTransactionsTest(BitcoinTestFramework):
def setup_chain(self):
print("Initializing test directory "+self.options.tmpdir)
initialize_chain_clean(self.options.tmpdir, 3)
initialize_chain_clean(self.options.tmpdir, 4)
def setup_network(self, split=False):
self.nodes = start_nodes(3, self.options.tmpdir)
self.nodes = start_nodes(4, self.options.tmpdir)
connect_nodes_bi(self.nodes,0,1)
connect_nodes_bi(self.nodes,1,2)
connect_nodes_bi(self.nodes,0,2)
connect_nodes_bi(self.nodes,0,3)
self.is_network_split=False
self.sync_all()
@ -31,11 +32,20 @@ class RawTransactionsTest(BitcoinTestFramework):
self.nodes[2].generate(1)
self.sync_all()
self.nodes[0].generate(101)
self.nodes[0].generate(121)
self.sync_all()
watchonly_address = self.nodes[0].getnewaddress()
watchonly_pubkey = self.nodes[0].validateaddress(watchonly_address)["pubkey"]
watchonly_amount = 200
self.nodes[3].importpubkey(watchonly_pubkey, "", True)
watchonly_txid = self.nodes[0].sendtoaddress(watchonly_address, watchonly_amount)
self.nodes[0].sendtoaddress(self.nodes[3].getnewaddress(), watchonly_amount / 10);
self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(),1.5);
self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(),1.0);
self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(),5.0);
self.sync_all()
self.nodes[0].generate(1)
self.sync_all()
@ -428,11 +438,12 @@ class RawTransactionsTest(BitcoinTestFramework):
stop_nodes(self.nodes)
wait_bitcoinds()
self.nodes = start_nodes(3, self.options.tmpdir)
self.nodes = start_nodes(4, self.options.tmpdir)
connect_nodes_bi(self.nodes,0,1)
connect_nodes_bi(self.nodes,1,2)
connect_nodes_bi(self.nodes,0,2)
connect_nodes_bi(self.nodes,0,3)
self.is_network_split=False
self.sync_all()
@ -525,5 +536,45 @@ class RawTransactionsTest(BitcoinTestFramework):
assert_equal(oldBalance+Decimal('50.19000000'), self.nodes[0].getbalance()) #0.19+block reward
##################################################
# test a fundrawtransaction using only watchonly #
##################################################
inputs = []
outputs = {self.nodes[2].getnewaddress() : watchonly_amount / 2}
rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
result = self.nodes[3].fundrawtransaction(rawtx, True)
res_dec = self.nodes[0].decoderawtransaction(result["hex"])
assert_equal(len(res_dec["vin"]), 1)
assert_equal(res_dec["vin"][0]["txid"], watchonly_txid)
assert_equal("fee" in result.keys(), True)
assert_greater_than(result["changepos"], -1)
###############################################################
# test fundrawtransaction using the entirety of watched funds #
###############################################################
inputs = []
outputs = {self.nodes[2].getnewaddress() : watchonly_amount}
rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
result = self.nodes[3].fundrawtransaction(rawtx, True)
res_dec = self.nodes[0].decoderawtransaction(result["hex"])
assert_equal(len(res_dec["vin"]), 2)
assert(res_dec["vin"][0]["txid"] == watchonly_txid or res_dec["vin"][1]["txid"] == watchonly_txid)
assert_greater_than(result["fee"], 0)
assert_greater_than(result["changepos"], -1)
assert_equal(result["fee"] + res_dec["vout"][result["changepos"]]["value"], watchonly_amount / 10)
signedtx = self.nodes[3].signrawtransaction(result["hex"])
assert(not signedtx["complete"])
signedtx = self.nodes[0].signrawtransaction(signedtx["hex"])
assert(signedtx["complete"])
self.nodes[0].sendrawtransaction(signedtx["hex"])
if __name__ == '__main__':
RawTransactionsTest().main()

3
src/coincontrol.h
View file

@ -14,6 +14,8 @@ public:
CTxDestination destChange;
//! If false, allows unselected inputs, but requires all selected inputs be used
bool fAllowOtherInputs;
//! Includes watch only addresses which match the ISMINE_WATCH_PUBKEY criteria
bool fAllowWatchOnly;
CCoinControl()
{
@ -24,6 +26,7 @@ public:
{
destChange = CNoDestination();
fAllowOtherInputs = false;
fAllowWatchOnly = false;
setSelected.clear();
}

19
src/wallet/rpcwallet.cpp
View file

@ -2367,15 +2367,20 @@ UniValue fundrawtransaction(const UniValue& params, bool fHelp)
if (!EnsureWalletIsAvailable(fHelp))
return NullUniValue;
if (fHelp || params.size() != 1)
if (fHelp || params.size() < 1 || params.size() > 2)
throw runtime_error(
"fundrawtransaction \"hexstring\"\n"
"fundrawtransaction \"hexstring\" includeWatching\n"
"\nAdd inputs to a transaction until it has enough in value to meet its out value.\n"
"This will not modify existing inputs, and will add one change output to the outputs.\n"
"Note that inputs which were signed may need to be resigned after completion since in/outputs have been added.\n"
"The inputs added will not be signed, use signrawtransaction for that.\n"
"Note that all existing inputs must have their previous output transaction be in the wallet.\n"
"Note that all inputs selected must be of standard form and P2SH scripts must be"
"in the wallet using importaddress or addmultisigaddress (to calculate fees).\n"
"Only pay-to-pubkey, multisig, and P2SH versions thereof are currently supported for watch-only\n"
"\nArguments:\n"
"1. \"hexstring\" (string, required) The hex string of the raw transaction\n"
"1. \"hexstring\" (string, required) The hex string of the raw transaction\n"
"2. includeWatching (boolean, optional, default false) Also select inputs which are watch only\n"
"\nResult:\n"
"{\n"
" \"hex\": \"value\", (string) The resulting raw transaction (hex-encoded string)\n"
@ -2394,18 +2399,22 @@ UniValue fundrawtransaction(const UniValue& params, bool fHelp)
+ HelpExampleCli("sendrawtransaction", "\"signedtransactionhex\"")
);
RPCTypeCheck(params, boost::assign::list_of(UniValue::VSTR));
RPCTypeCheck(params, boost::assign::list_of(UniValue::VSTR)(UniValue::VBOOL));
// parse hex string from parameter
CTransaction origTx;
if (!DecodeHexTx(origTx, params[0].get_str()))
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
bool includeWatching = false;
if (params.size() > 1)
includeWatching = true;
CMutableTransaction tx(origTx);
CAmount nFee;
string strFailReason;
int nChangePos = -1;
if(!pwalletMain->FundTransaction(tx, nFee, nChangePos, strFailReason))
if(!pwalletMain->FundTransaction(tx, nFee, nChangePos, strFailReason, includeWatching))
throw JSONRPCError(RPC_INTERNAL_ERROR, strFailReason);
UniValue result(UniValue::VOBJ);

7
src/wallet/wallet.cpp
View file

@ -1524,7 +1524,9 @@ void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed, const
if (!(IsSpent(wtxid, i)) && mine != ISMINE_NO &&
!IsLockedCoin((*it).first, i) && (pcoin->vout[i].nValue > 0 || fIncludeZeroValue) &&
(!coinControl || !coinControl->HasSelected() || coinControl->fAllowOtherInputs || coinControl->IsSelected((*it).first, i)))
vCoins.push_back(COutput(pcoin, i, nDepth, (mine & ISMINE_SPENDABLE) != ISMINE_NO));
vCoins.push_back(COutput(pcoin, i, nDepth,
((mine & ISMINE_SPENDABLE) != ISMINE_NO) ||
(coinControl && coinControl->fAllowWatchOnly && (mine & ISMINE_WATCH_PUBKEY) != ISMINE_NO)));
}
}
}
@ -1740,7 +1742,7 @@ bool CWallet::SelectCoins(const CAmount& nTargetValue, set<pair<const CWalletTx*
return res;
}
bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount &nFeeRet, int& nChangePosRet, std::string& strFailReason)
bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount &nFeeRet, int& nChangePosRet, std::string& strFailReason, bool includeWatching)
{
vector<CRecipient> vecSend;
@ -1753,6 +1755,7 @@ bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount &nFeeRet, int& nC
CCoinControl coinControl;
coinControl.fAllowOtherInputs = true;
coinControl.fAllowWatchOnly = includeWatching;
BOOST_FOREACH(const CTxIn& txin, tx.vin)
coinControl.Select(txin.prevout);

2
src/wallet/wallet.h
View file

@ -630,7 +630,7 @@ public:
CAmount GetWatchOnlyBalance() const;
CAmount GetUnconfirmedWatchOnlyBalance() const;
CAmount GetImmatureWatchOnlyBalance() const;
bool FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nChangePosRet, std::string& strFailReason);
bool FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nChangePosRet, std::string& strFailReason, bool includeWatching);
bool CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, CAmount& nFeeRet, int& nChangePosRet,
std::string& strFailReason, const CCoinControl *coinControl = NULL, bool sign = true);
bool CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey);