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#include <noscrypt.h>
#include "signer.hpp"
using namespace std;
namespace nostr
{
namespace signer
{
class NoscryptSigner : public INostrConnectSigner
{
public:
NoscryptSigner(shared_ptr<plog::IAppender> appender)
{
// Set up the logger.
plog::init(plog::debug, appender.get());
// Set up the noscrypt library.
this->context = make_shared<NCContext>();
auto contextStructSize = NCGetContextStructSize();
unique_ptr<uint8_t[]> randomEntropy(new uint8_t[contextStructSize]);
random_device device;
mt19937 seed(device());
uniform_int_distribution<int> distribution(1, NC_CONTEXT_ENTROPY_SIZE);
generate_n(randomEntropy.get(), NC_CONTEXT_ENTROPY_SIZE, [&]() { return distribution(seed); });
NCResult result = NCInitContext(context.get(), randomEntropy.get());
this->handleNoscryptInitResult(result);
};
~NoscryptSigner()
{
NCDestroyContext(context.get());
};
void receiveConnection(string connectionToken) override
{
// Receive the connection token here.
};
void initiateConnection(
string relay,
string name,
string url,
string description) override
{
// Initiate the connection here.
};
void sign(shared_ptr<data::Event> event) override
{
// Sign the event here.
};
private:
shared_ptr<NCContext> context;
void handleNoscryptInitResult(NCResult result)
{
switch (result) {
case NC_SUCCESS:
PLOG_INFO << "Successfully initialized noscrypt.";
break;
case E_NULL_PTR:
PLOG_ERROR << "Failed to initialize noscrypt: A null pointer was passed to the initializer.";
break;
case E_INVALID_ARG:
PLOG_ERROR << "Failed to initialize noscrypt: An invalid argument was passed to the initializer.";
break;
case E_INVALID_CONTEXT:
PLOG_ERROR << "Failed to initialize noscrypt: The NCContext struct is in an invalid state.";
break;
case E_ARGUMENT_OUT_OF_RANGE:
PLOG_ERROR << "Failed to initialize noscrypt: An initializer argument was outside the range of acceptable values.";
break;
case E_OPERATION_FAILED:
PLOG_ERROR << "Failed to initialize noscrypt.";
break;
}
};
};
} // namespace signer
} // namespace nostr
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