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-rw-r--r--src/wallet/psbtwallet.cpp62
-rw-r--r--src/wallet/psbtwallet.h36
-rw-r--r--src/wallet/rpcwallet.cpp70
-rw-r--r--src/wallet/rpcwallet.h1
-rw-r--r--src/wallet/test/psbt_wallet_tests.cpp5
5 files changed, 115 insertions, 59 deletions
diff --git a/src/wallet/psbtwallet.cpp b/src/wallet/psbtwallet.cpp
new file mode 100644
index 0000000000..761e7b7dd7
--- /dev/null
+++ b/src/wallet/psbtwallet.cpp
@@ -0,0 +1,62 @@
+// Copyright (c) 2009-2018 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <wallet/psbtwallet.h>
+
+bool FillPSBT(const CWallet* pwallet, PartiallySignedTransaction& psbtx, TransactionError& error, bool& complete, int sighash_type, bool sign, bool bip32derivs)
+{
+ LOCK(pwallet->cs_wallet);
+ // Get all of the previous transactions
+ complete = true;
+ for (unsigned int i = 0; i < psbtx.tx->vin.size(); ++i) {
+ const CTxIn& txin = psbtx.tx->vin[i];
+ PSBTInput& input = psbtx.inputs.at(i);
+
+ if (PSBTInputSigned(input)) {
+ continue;
+ }
+
+ // Verify input looks sane. This will check that we have at most one uxto, witness or non-witness.
+ if (!input.IsSane()) {
+ error = TransactionError::INVALID_PSBT;
+ return false;
+ }
+
+ // If we have no utxo, grab it from the wallet.
+ if (!input.non_witness_utxo && input.witness_utxo.IsNull()) {
+ const uint256& txhash = txin.prevout.hash;
+ const auto it = pwallet->mapWallet.find(txhash);
+ if (it != pwallet->mapWallet.end()) {
+ const CWalletTx& wtx = it->second;
+ // We only need the non_witness_utxo, which is a superset of the witness_utxo.
+ // The signing code will switch to the smaller witness_utxo if this is ok.
+ input.non_witness_utxo = wtx.tx;
+ }
+ }
+
+ // Get the Sighash type
+ if (sign && input.sighash_type > 0 && input.sighash_type != sighash_type) {
+ error = TransactionError::SIGHASH_MISMATCH;
+ return false;
+ }
+
+ complete &= SignPSBTInput(HidingSigningProvider(pwallet, !sign, !bip32derivs), psbtx, i, sighash_type);
+ }
+
+ // Fill in the bip32 keypaths and redeemscripts for the outputs so that hardware wallets can identify change
+ for (unsigned int i = 0; i < psbtx.tx->vout.size(); ++i) {
+ const CTxOut& out = psbtx.tx->vout.at(i);
+ PSBTOutput& psbt_out = psbtx.outputs.at(i);
+
+ // Fill a SignatureData with output info
+ SignatureData sigdata;
+ psbt_out.FillSignatureData(sigdata);
+
+ MutableTransactionSignatureCreator creator(psbtx.tx.get_ptr(), 0, out.nValue, 1);
+ ProduceSignature(HidingSigningProvider(pwallet, true, !bip32derivs), creator, out.scriptPubKey, sigdata);
+ psbt_out.FromSignatureData(sigdata);
+ }
+
+ return true;
+}
diff --git a/src/wallet/psbtwallet.h b/src/wallet/psbtwallet.h
new file mode 100644
index 0000000000..b679f5c6ba
--- /dev/null
+++ b/src/wallet/psbtwallet.h
@@ -0,0 +1,36 @@
+// Copyright (c) 2009-2018 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_WALLET_PSBTWALLET_H
+#define BITCOIN_WALLET_PSBTWALLET_H
+
+#include <node/transaction.h>
+#include <psbt.h>
+#include <primitives/transaction.h>
+#include <wallet/wallet.h>
+
+/**
+ * Fills out a PSBT with information from the wallet. Fills in UTXOs if we have
+ * them. Tries to sign if sign=true. Sets `complete` if the PSBT is now complete
+ * (i.e. has all required signatures or signature-parts, and is ready to
+ * finalize.) Sets `error` and returns false if something goes wrong.
+ *
+ * @param[in] pwallet pointer to a wallet
+ * @param[in] &psbtx reference to PartiallySignedTransaction to fill in
+ * @param[out] &error reference to UniValue to fill with error info on failure
+ * @param[out] &complete indicates whether the PSBT is now complete
+ * @param[in] sighash_type the sighash type to use when signing (if PSBT does not specify)
+ * @param[in] sign whether to sign or not
+ * @param[in] bip32derivs whether to fill in bip32 derivation information if available
+ * return true on success, false on error (and fills in `error`)
+ */
+bool FillPSBT(const CWallet* pwallet,
+ PartiallySignedTransaction& psbtx,
+ TransactionError& error,
+ bool& complete,
+ int sighash_type = 1 /* SIGHASH_ALL */,
+ bool sign = true,
+ bool bip32derivs = false);
+
+#endif // BITCOIN_WALLET_PSBTWALLET_H
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index e836f50792..9e362cf167 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -13,6 +13,7 @@
#include <validation.h>
#include <key_io.h>
#include <net.h>
+#include <node/transaction.h>
#include <outputtype.h>
#include <policy/feerate.h>
#include <policy/fees.h>
@@ -30,6 +31,7 @@
#include <util/moneystr.h>
#include <wallet/coincontrol.h>
#include <wallet/feebumper.h>
+#include <wallet/psbtwallet.h>
#include <wallet/rpcwallet.h>
#include <wallet/wallet.h>
#include <wallet/walletdb.h>
@@ -3938,60 +3940,6 @@ void AddKeypathToMap(const CWallet* pwallet, const CKeyID& keyID, std::map<CPubK
hd_keypaths.emplace(vchPubKey, std::move(info));
}
-bool FillPSBT(const CWallet* pwallet, PartiallySignedTransaction& psbtx, int sighash_type, bool sign, bool bip32derivs)
-{
- LOCK(pwallet->cs_wallet);
- // Get all of the previous transactions
- bool complete = true;
- for (unsigned int i = 0; i < psbtx.tx->vin.size(); ++i) {
- const CTxIn& txin = psbtx.tx->vin[i];
- PSBTInput& input = psbtx.inputs.at(i);
-
- if (PSBTInputSigned(input)) {
- continue;
- }
-
- // Verify input looks sane. This will check that we have at most one uxto, witness or non-witness.
- if (!input.IsSane()) {
- throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "PSBT input is not sane.");
- }
-
- // If we have no utxo, grab it from the wallet.
- if (!input.non_witness_utxo && input.witness_utxo.IsNull()) {
- const uint256& txhash = txin.prevout.hash;
- const auto it = pwallet->mapWallet.find(txhash);
- if (it != pwallet->mapWallet.end()) {
- const CWalletTx& wtx = it->second;
- // We only need the non_witness_utxo, which is a superset of the witness_utxo.
- // The signing code will switch to the smaller witness_utxo if this is ok.
- input.non_witness_utxo = wtx.tx;
- }
- }
-
- // Get the Sighash type
- if (sign && input.sighash_type > 0 && input.sighash_type != sighash_type) {
- throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Specified Sighash and sighash in PSBT do not match.");
- }
-
- complete &= SignPSBTInput(HidingSigningProvider(pwallet, !sign, !bip32derivs), psbtx, i, sighash_type);
- }
-
- // Fill in the bip32 keypaths and redeemscripts for the outputs so that hardware wallets can identify change
- for (unsigned int i = 0; i < psbtx.tx->vout.size(); ++i) {
- const CTxOut& out = psbtx.tx->vout.at(i);
- PSBTOutput& psbt_out = psbtx.outputs.at(i);
-
- // Fill a SignatureData with output info
- SignatureData sigdata;
- psbt_out.FillSignatureData(sigdata);
-
- MutableTransactionSignatureCreator creator(psbtx.tx.get_ptr(), 0, out.nValue, 1);
- ProduceSignature(HidingSigningProvider(pwallet, true, !bip32derivs), creator, out.scriptPubKey, sigdata);
- psbt_out.FromSignatureData(sigdata);
- }
- return complete;
-}
-
UniValue walletprocesspsbt(const JSONRPCRequest& request)
{
std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
@@ -4036,7 +3984,7 @@ UniValue walletprocesspsbt(const JSONRPCRequest& request)
// Unserialize the transaction
PartiallySignedTransaction psbtx;
std::string error;
- if (!DecodePSBT(psbtx, request.params[0].get_str(), error)) {
+ if (!DecodeBase64PSBT(psbtx, request.params[0].get_str(), error)) {
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, strprintf("TX decode failed %s", error));
}
@@ -4046,7 +3994,11 @@ UniValue walletprocesspsbt(const JSONRPCRequest& request)
// Fill transaction with our data and also sign
bool sign = request.params[1].isNull() ? true : request.params[1].get_bool();
bool bip32derivs = request.params[3].isNull() ? false : request.params[3].get_bool();
- bool complete = FillPSBT(pwallet, psbtx, nHashType, sign, bip32derivs);
+ bool complete = true;
+ TransactionError err;
+ if (!FillPSBT(pwallet, psbtx, err, complete, nHashType, sign, bip32derivs)) {
+ throw JSONRPCTransactionError(err);
+ }
UniValue result(UniValue::VOBJ);
CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
@@ -4160,7 +4112,11 @@ UniValue walletcreatefundedpsbt(const JSONRPCRequest& request)
// Fill transaction with out data but don't sign
bool bip32derivs = request.params[4].isNull() ? false : request.params[4].get_bool();
- FillPSBT(pwallet, psbtx, 1, false, bip32derivs);
+ bool complete = true;
+ TransactionError err;
+ if (!FillPSBT(pwallet, psbtx, err, complete, 1, false, bip32derivs)) {
+ throw JSONRPCTransactionError(err);
+ }
// Serialize the PSBT
CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
diff --git a/src/wallet/rpcwallet.h b/src/wallet/rpcwallet.h
index abd7750874..58053bde59 100644
--- a/src/wallet/rpcwallet.h
+++ b/src/wallet/rpcwallet.h
@@ -30,5 +30,4 @@ bool EnsureWalletIsAvailable(CWallet *, bool avoidException);
UniValue getaddressinfo(const JSONRPCRequest& request);
UniValue signrawtransactionwithwallet(const JSONRPCRequest& request);
-bool FillPSBT(const CWallet* pwallet, PartiallySignedTransaction& psbtx, int sighash_type = 1 /* SIGHASH_ALL */, bool sign = true, bool bip32derivs = false);
#endif //BITCOIN_WALLET_RPCWALLET_H
diff --git a/src/wallet/test/psbt_wallet_tests.cpp b/src/wallet/test/psbt_wallet_tests.cpp
index 9918eeb89f..e89d4121bc 100644
--- a/src/wallet/test/psbt_wallet_tests.cpp
+++ b/src/wallet/test/psbt_wallet_tests.cpp
@@ -5,6 +5,7 @@
#include <key_io.h>
#include <script/sign.h>
#include <util/strencodings.h>
+#include <wallet/psbtwallet.h>
#include <wallet/rpcwallet.h>
#include <wallet/wallet.h>
#include <univalue.h>
@@ -60,7 +61,9 @@ BOOST_AUTO_TEST_CASE(psbt_updater_test)
ssData >> psbtx;
// Fill transaction with our data
- FillPSBT(&m_wallet, psbtx, SIGHASH_ALL, false, true);
+ TransactionError err;
+ bool complete = true;
+ FillPSBT(&m_wallet, psbtx, err, complete, SIGHASH_ALL, false, true);
// Get the final tx
CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);