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// Copyright (c) 2018-2021 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 <chainparams.h>
#include <wallet/external_signer.h>
ExternalSigner::ExternalSigner(const std::string& command, const std::string& fingerprint, std::string chain, std::string name): m_command(command), m_fingerprint(fingerprint), m_chain(chain), m_name(name) {}
const std::string ExternalSigner::NetworkArg() const
{
return " --chain " + m_chain;
}
#ifdef ENABLE_EXTERNAL_SIGNER
bool ExternalSigner::Enumerate(const std::string& command, std::vector<ExternalSigner>& signers, std::string chain, bool ignore_errors)
{
// Call <command> enumerate
const UniValue result = RunCommandParseJSON(command + " enumerate");
if (!result.isArray()) {
if (ignore_errors) return false;
throw ExternalSignerException(strprintf("'%s' received invalid response, expected array of signers", command));
}
for (UniValue signer : result.getValues()) {
// Check for error
const UniValue& error = find_value(signer, "error");
if (!error.isNull()) {
if (ignore_errors) return false;
if (!error.isStr()) {
throw ExternalSignerException(strprintf("'%s' error", command));
}
throw ExternalSignerException(strprintf("'%s' error: %s", command, error.getValStr()));
}
// Check if fingerprint is present
const UniValue& fingerprint = find_value(signer, "fingerprint");
if (fingerprint.isNull()) {
if (ignore_errors) return false;
throw ExternalSignerException(strprintf("'%s' received invalid response, missing signer fingerprint", command));
}
std::string fingerprintStr = fingerprint.get_str();
// Skip duplicate signer
bool duplicate = false;
for (ExternalSigner signer : signers) {
if (signer.m_fingerprint.compare(fingerprintStr) == 0) duplicate = true;
}
if (duplicate) break;
std::string name = "";
const UniValue& model_field = find_value(signer, "model");
if (model_field.isStr() && model_field.getValStr() != "") {
name += model_field.getValStr();
}
signers.push_back(ExternalSigner(command, fingerprintStr, chain, name));
}
return true;
}
UniValue ExternalSigner::DisplayAddress(const std::string& descriptor) const
{
return RunCommandParseJSON(m_command + " --fingerprint \"" + m_fingerprint + "\"" + NetworkArg() + " displayaddress --desc \"" + descriptor + "\"");
}
UniValue ExternalSigner::GetDescriptors(int account)
{
return RunCommandParseJSON(m_command + " --fingerprint \"" + m_fingerprint + "\"" + NetworkArg() + " getdescriptors --account " + strprintf("%d", account));
}
#endif
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