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-rw-r--r--src/node/psbt.cpp31
1 files changed, 11 insertions, 20 deletions
diff --git a/src/node/psbt.cpp b/src/node/psbt.cpp
index 8678b33cf3..5b16035f7d 100644
--- a/src/node/psbt.cpp
+++ b/src/node/psbt.cpp
@@ -18,9 +18,7 @@ PSBTAnalysis AnalyzePSBT(PartiallySignedTransaction psbtx)
PSBTAnalysis result;
bool calc_fee = true;
- bool all_final = true;
- bool only_missing_sigs = true;
- bool only_missing_final = false;
+
CAmount in_amt = 0;
result.inputs.resize(psbtx.tx->vin.size());
@@ -29,6 +27,9 @@ PSBTAnalysis AnalyzePSBT(PartiallySignedTransaction psbtx)
PSBTInput& input = psbtx.inputs[i];
PSBTInputAnalysis& input_analysis = result.inputs[i];
+ // We set next role here and ratchet backwards as required
+ input_analysis.next = PSBTRole::EXTRACTOR;
+
// Check for a UTXO
CTxOut utxo;
if (psbtx.GetInputUTXO(utxo, i)) {
@@ -57,7 +58,6 @@ PSBTAnalysis AnalyzePSBT(PartiallySignedTransaction psbtx)
// Check if it is final
if (!utxo.IsNull() && !PSBTInputSigned(input)) {
input_analysis.is_final = false;
- all_final = false;
// Figure out what is missing
SignatureData outdata;
@@ -74,11 +74,9 @@ PSBTAnalysis AnalyzePSBT(PartiallySignedTransaction psbtx)
if (outdata.missing_pubkeys.empty() && outdata.missing_redeem_script.IsNull() && outdata.missing_witness_script.IsNull() && !outdata.missing_sigs.empty()) {
input_analysis.next = PSBTRole::SIGNER;
} else {
- only_missing_sigs = false;
input_analysis.next = PSBTRole::UPDATER;
}
} else {
- only_missing_final = true;
input_analysis.next = PSBTRole::FINALIZER;
}
} else if (!utxo.IsNull()){
@@ -86,10 +84,14 @@ PSBTAnalysis AnalyzePSBT(PartiallySignedTransaction psbtx)
}
}
- if (all_final) {
- only_missing_sigs = false;
- result.next = PSBTRole::EXTRACTOR;
+ // Calculate next role for PSBT by grabbing "minimum" PSBTInput next role
+ result.next = PSBTRole::EXTRACTOR;
+ for (unsigned int i = 0; i < psbtx.tx->vin.size(); ++i) {
+ PSBTInputAnalysis& input_analysis = result.inputs[i];
+ result.next = std::min(result.next, input_analysis.next);
}
+ assert(result.next > PSBTRole::CREATOR);
+
if (calc_fee) {
// Get the output amount
CAmount out_amt = std::accumulate(psbtx.tx->vout.begin(), psbtx.tx->vout.end(), CAmount(0),
@@ -139,17 +141,6 @@ PSBTAnalysis AnalyzePSBT(PartiallySignedTransaction psbtx)
result.estimated_feerate = feerate;
}
- if (only_missing_sigs) {
- result.next = PSBTRole::SIGNER;
- } else if (only_missing_final) {
- result.next = PSBTRole::FINALIZER;
- } else if (all_final) {
- result.next = PSBTRole::EXTRACTOR;
- } else {
- result.next = PSBTRole::UPDATER;
- }
- } else {
- result.next = PSBTRole::UPDATER;
}
return result;