bitcoin/src/external_signer.h
TheCharlatan 7d3b35004b
refactor: Move system from util to common library
Since the kernel library no longer depends on the system file, move it
to the common library instead in accordance to the diagram in
doc/design/libraries.md.
2023-05-20 12:08:13 +02:00

66 lines
2.7 KiB
C++

// 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.
#ifndef BITCOIN_EXTERNAL_SIGNER_H
#define BITCOIN_EXTERNAL_SIGNER_H
#include <common/system.h>
#include <univalue.h>
#include <string>
#include <vector>
struct PartiallySignedTransaction;
//! Enables interaction with an external signing device or service, such as
//! a hardware wallet. See doc/external-signer.md
class ExternalSigner
{
private:
//! The command which handles interaction with the external signer.
std::string m_command;
//! Bitcoin mainnet, testnet, etc
std::string m_chain;
std::string NetworkArg() const;
public:
//! @param[in] command the command which handles interaction with the external signer
//! @param[in] fingerprint master key fingerprint of the signer
//! @param[in] chain "main", "test", "regtest" or "signet"
//! @param[in] name device name
ExternalSigner(const std::string& command, const std::string chain, const std::string& fingerprint, const std::string name);
//! Master key fingerprint of the signer
std::string m_fingerprint;
//! Name of signer
std::string m_name;
//! Obtain a list of signers. Calls `<command> enumerate`.
//! @param[in] command the command which handles interaction with the external signer
//! @param[in,out] signers vector to which new signers (with a unique master key fingerprint) are added
//! @param chain "main", "test", "regtest" or "signet"
//! @returns success
static bool Enumerate(const std::string& command, std::vector<ExternalSigner>& signers, const std::string chain);
//! Display address on the device. Calls `<command> displayaddress --desc <descriptor>`.
//! @param[in] descriptor Descriptor specifying which address to display.
//! Must include a public key or xpub, as well as key origin.
UniValue DisplayAddress(const std::string& descriptor) const;
//! Get receive and change Descriptor(s) from device for a given account.
//! Calls `<command> getdescriptors --account <account>`
//! @param[in] account which BIP32 account to use (e.g. `m/44'/0'/account'`)
//! @returns see doc/external-signer.md
UniValue GetDescriptors(const int account);
//! Sign PartiallySignedTransaction on the device.
//! Calls `<command> signtransaction` and passes the PSBT via stdin.
//! @param[in,out] psbt PartiallySignedTransaction to be signed
bool SignTransaction(PartiallySignedTransaction& psbt, std::string& error);
};
#endif // BITCOIN_EXTERNAL_SIGNER_H