diff options
Diffstat (limited to 'src/psbt.cpp')
| -rw-r--r-- | src/psbt.cpp | 54 |
1 files changed, 50 insertions, 4 deletions
diff --git a/src/psbt.cpp b/src/psbt.cpp index 81633c0cc7..32fb459dec 100644 --- a/src/psbt.cpp +++ b/src/psbt.cpp @@ -42,6 +42,40 @@ bool PartiallySignedTransaction::IsSane() const return true; } +bool PartiallySignedTransaction::AddInput(const CTxIn& txin, PSBTInput& psbtin) +{ + if (std::find(tx->vin.begin(), tx->vin.end(), txin) != tx->vin.end()) { + return false; + } + tx->vin.push_back(txin); + psbtin.partial_sigs.clear(); + psbtin.final_script_sig.clear(); + psbtin.final_script_witness.SetNull(); + inputs.push_back(psbtin); + return true; +} + +bool PartiallySignedTransaction::AddOutput(const CTxOut& txout, const PSBTOutput& psbtout) +{ + tx->vout.push_back(txout); + outputs.push_back(psbtout); + return true; +} + +bool PartiallySignedTransaction::GetInputUTXO(CTxOut& utxo, int input_index) const +{ + PSBTInput input = inputs[input_index]; + int prevout_index = tx->vin[input_index].prevout.n; + if (input.non_witness_utxo) { + utxo = input.non_witness_utxo->vout[prevout_index]; + } else if (!input.witness_utxo.IsNull()) { + utxo = input.witness_utxo; + } else { + return false; + } + return true; +} + bool PSBTInput::IsNull() const { return !non_witness_utxo && witness_utxo.IsNull() && partial_sigs.empty() && unknown.empty() && hd_keypaths.empty() && redeem_script.empty() && witness_script.empty(); @@ -171,13 +205,12 @@ void PSBTOutput::Merge(const PSBTOutput& output) if (redeem_script.empty() && !output.redeem_script.empty()) redeem_script = output.redeem_script; if (witness_script.empty() && !output.witness_script.empty()) witness_script = output.witness_script; } - bool PSBTInputSigned(PSBTInput& input) { return !input.final_script_sig.empty() || !input.final_script_witness.IsNull(); } -bool SignPSBTInput(const SigningProvider& provider, PartiallySignedTransaction& psbt, int index, int sighash) +bool SignPSBTInput(const SigningProvider& provider, PartiallySignedTransaction& psbt, int index, int sighash, SignatureData* out_sigdata, bool use_dummy) { PSBTInput& input = psbt.inputs.at(index); const CMutableTransaction& tx = *psbt.tx; @@ -217,9 +250,14 @@ bool SignPSBTInput(const SigningProvider& provider, PartiallySignedTransaction& return false; } - MutableTransactionSignatureCreator creator(&tx, index, utxo.nValue, sighash); sigdata.witness = false; - bool sig_complete = ProduceSignature(provider, creator, utxo.scriptPubKey, sigdata); + bool sig_complete; + if (use_dummy) { + sig_complete = ProduceSignature(provider, DUMMY_SIGNATURE_CREATOR, utxo.scriptPubKey, sigdata); + } else { + MutableTransactionSignatureCreator creator(&tx, index, utxo.nValue, sighash); + sig_complete = ProduceSignature(provider, creator, utxo.scriptPubKey, sigdata); + } // Verify that a witness signature was produced in case one was required. if (require_witness_sig && !sigdata.witness) return false; input.FromSignatureData(sigdata); @@ -230,6 +268,14 @@ bool SignPSBTInput(const SigningProvider& provider, PartiallySignedTransaction& input.non_witness_utxo = nullptr; } + // Fill in the missing info + if (out_sigdata) { + out_sigdata->missing_pubkeys = sigdata.missing_pubkeys; + out_sigdata->missing_sigs = sigdata.missing_sigs; + out_sigdata->missing_redeem_script = sigdata.missing_redeem_script; + out_sigdata->missing_witness_script = sigdata.missing_witness_script; + } + return sig_complete; } |