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rpc: Fix for duplicate external signers case

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In case of multiple external signers, with some duplicates,
de-duplicate them: keep one signer per fingerprint, and
keep all non-duplicates as well. Add a new test check.
This commit is contained in:
optout
2026-05-09 10:57:08 +02:00
parent b796bf44f3
commit f05b1a3532
2 changed files with 14 additions and 1 deletions
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2
src/external_signer.cpp
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@@ -53,7 +53,7 @@ bool ExternalSigner::Enumerate(const std::string& command, std::vector<ExternalS
for (const ExternalSigner& signer : signers) {
if (signer.m_fingerprint.compare(fingerprintStr) == 0) duplicate = true;
}
if (duplicate) break;
if (duplicate) continue;
std::string name;
const UniValue& model_field = signer.find_value("model");
if (model_field.isStr() && model_field.getValStr() != "") {

13
test/functional/rpc_signer.py
View File

@@ -72,6 +72,19 @@ class RPCSignerTest(BitcoinTestFramework):
)
self.clear_mock_result(self.nodes[1])
# Duplicate fingerprints
self.set_mock_result(self.nodes[1],
'0 ['
'{"fingerprint": "00000001", "type": "trezor", "model": "trezor_t"}, '
'{"fingerprint": "00000001", "type": "trezor", "model": "trezor_t"}, '
'{"fingerprint": "00000002", "type": "trezor", "model": "trezor_one"}'
']')
assert_equal(self.nodes[1].enumeratesigners(), {"signers": [
{"fingerprint": "00000001", "name": "trezor_t"},
{"fingerprint": "00000002", "name": "trezor_one"},
]})
self.clear_mock_result(self.nodes[1])
assert_equal({'fingerprint': '00000001', 'name': 'trezor_t'} in self.nodes[1].enumeratesigners()['signers'], True)
if __name__ == '__main__':