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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 <chainparamsbase.h>
#include <key_io.h>
#include <rpc/server.h>
#include <rpc/util.h>
#include <util/strencodings.h>
#include <wallet/rpcsigner.h>
#include <wallet/rpcwallet.h>
#include <wallet/wallet.h>
#ifdef ENABLE_EXTERNAL_SIGNER
static RPCHelpMan enumeratesigners()
{
return RPCHelpMan{
"enumeratesigners",
"Returns a list of external signers from -signer.",
{},
RPCResult{
RPCResult::Type::OBJ, "", "",
{
{RPCResult::Type::ARR, "signers", /* optional */ false, "",
{
{RPCResult::Type::STR_HEX, "masterkeyfingerprint", "Master key fingerprint"},
{RPCResult::Type::STR, "name", "Device name"},
},
}
}
},
RPCExamples{""},
[](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue {
const std::string command = gArgs.GetArg("-signer", "");
if (command == "") throw JSONRPCError(RPC_WALLET_ERROR, "Error: restart bitcoind with -signer=<cmd>");
std::string chain = gArgs.GetChainName();
UniValue signers_res = UniValue::VARR;
try {
std::vector<ExternalSigner> signers;
ExternalSigner::Enumerate(command, signers, chain);
for (ExternalSigner signer : signers) {
UniValue signer_res = UniValue::VOBJ;
signer_res.pushKV("fingerprint", signer.m_fingerprint);
signer_res.pushKV("name", signer.m_name);
signers_res.push_back(signer_res);
}
} catch (const ExternalSignerException& e) {
throw JSONRPCError(RPC_WALLET_ERROR, e.what());
}
UniValue result(UniValue::VOBJ);
result.pushKV("signers", signers_res);
return result;
}
};
}
static RPCHelpMan signerdisplayaddress()
{
return RPCHelpMan{
"signerdisplayaddress",
"Display address on an external signer for verification.\n",
{
{"address", RPCArg::Type::STR, RPCArg::Optional::NO, /* default_val */ "", "bitcoin address to display"},
},
RPCResult{RPCResult::Type::NONE,"",""},
RPCExamples{""},
[](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue {
std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
if (!wallet) return NullUniValue;
CWallet* const pwallet = wallet.get();
LOCK(pwallet->cs_wallet);
CTxDestination dest = DecodeDestination(request.params[0].get_str());
// Make sure the destination is valid
if (!IsValidDestination(dest)) {
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid address");
}
if (!pwallet->DisplayAddress(dest)) {
throw JSONRPCError(RPC_WALLET_ERROR, "Failed to display address");
}
UniValue result(UniValue::VOBJ);
result.pushKV("address", request.params[0].get_str());
return result;
}
};
}
Span<const CRPCCommand> GetSignerRPCCommands()
{
// clang-format off
static const CRPCCommand commands[] =
{ // category actor (function)
// --------------------- ------------------------
{ "signer", &enumeratesigners, },
{ "signer", &signerdisplayaddress, },
};
// clang-format on
return MakeSpan(commands);
}
#endif // ENABLE_EXTERNAL_SIGNER
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