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#pragma once
#include <plog/Init.h>
#include <plog/Log.h>
extern "C"
{
#include <noscrypt.h>
}
#include "service/nostr_service_base.hpp"
#include "signer/signer.hpp"
namespace nostr
{
namespace signer
{
class NoscryptSigner : public INostrConnectSigner
{
public:
NoscryptSigner(
std::shared_ptr<plog::IAppender> appender,
std::shared_ptr<nostr::service::INostrServiceBase> nostrService);
~NoscryptSigner();
void receiveConnection(std::string connectionToken) override;
std::string initiateConnection(
std::vector<std::string> relays,
std::string name,
std::string url,
std::string description) override;
void sign(std::shared_ptr<data::Event> event) override;
private:
std::shared_ptr<NCContext> _noscryptContext;
std::string _localPrivateKey;
std::string _localPublicKey;
std::string _remotePublicKey;
std::string _bunkerSecret;
///< A list of relays that will be used to connect to the remote signer.
std::vector<std::string> _relays;
/**
* @brief Initializes the noscrypt library context into the class's `context` property.
* @returns `true` if successful, `false` otherwise.
*/
std::shared_ptr<NCContext> _initNoscryptContext();
/**
* @brief Generates a private/public key pair for local use.
* @returns The generated keypair of the form `[privateKey, publicKey]`, or a pair of empty
* strings if the function failed.
* @remarks This keypair is intended for temporary use, and should not be saved or used outside
* of this class.
*/
std::tuple<std::string, std::string> _createLocalKeypair();
/**
* @brief Parses the remote signer npub from a connection token provided by the signer.
* @param connectionToken A connection token beginning with `bunker://`.
* @returns The index of the first character of the connection token's query string, or -1 if
* no valid public key could be parsed.
* @remark This function updates the `_remotePublicKey` string in its class instance by side
* effect.
*/
int _parseRemotePublicKey(std::string connectionToken);
/**
* @brief Parses a single query param from a connection token provided by a remote signer.
* @param param A single query param from the connection token of the form `key=value`.
* @remark This function updates the `_relays` vector and the `_bunkerSecret` string in its
* class instance by side effect.
*/
void _handleConnectionTokenParam(std::string param);
#pragma region Logging
void _logNoscryptInitResult(NCResult initResult);
void _logNoscryptSecretValidationResult(NCResult secretValidationResult);
void _logNoscryptPubkeyGenerationResult(NCResult pubkeyGenerationResult);
#pragma endregion
};
} // namespace signer
} // namespace nostr
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