lokinet/llarp/service/info.cpp
2022-07-18 14:56:09 -03:00

106 lines
2.4 KiB
C++

#include "info.hpp"
#include <llarp/crypto/crypto.hpp>
#include "address.hpp"
#include <llarp/util/buffer.hpp>
#include <cassert>
#include <sodium/crypto_generichash.h>
#include <sodium/crypto_sign_ed25519.h>
namespace llarp
{
namespace service
{
bool
ServiceInfo::Verify(const llarp_buffer_t& payload, const Signature& sig) const
{
return CryptoManager::instance()->verify(signkey, payload, sig);
}
bool
ServiceInfo::Update(
const byte_t* sign, const byte_t* enc, const std::optional<VanityNonce>& nonce)
{
signkey = sign;
enckey = enc;
if (nonce)
{
vanity = *nonce;
}
return UpdateAddr();
}
bool
ServiceInfo::DecodeKey(const llarp_buffer_t& key, llarp_buffer_t* val)
{
bool read = false;
if (!BEncodeMaybeReadDictEntry("e", enckey, read, key, val))
return false;
if (!BEncodeMaybeReadDictEntry("s", signkey, read, key, val))
return false;
if (!BEncodeMaybeReadDictInt("v", version, read, key, val))
return false;
if (!BEncodeMaybeReadDictEntry("x", vanity, read, key, val))
return false;
return read;
}
bool
ServiceInfo::BEncode(llarp_buffer_t* buf) const
{
if (!bencode_start_dict(buf))
return false;
if (!BEncodeWriteDictEntry("e", enckey, buf))
return false;
if (!BEncodeWriteDictEntry("s", signkey, buf))
return false;
if (!BEncodeWriteDictInt("v", llarp::constants::proto_version, buf))
return false;
if (!vanity.IsZero())
{
if (!BEncodeWriteDictEntry("x", vanity, buf))
return false;
}
return bencode_end(buf);
}
std::string
ServiceInfo::Name() const
{
if (m_CachedAddr.IsZero())
{
Address addr;
CalculateAddress(addr.as_array());
return addr.ToString();
}
return m_CachedAddr.ToString();
}
bool
ServiceInfo::CalculateAddress(std::array<byte_t, 32>& data) const
{
data = signkey.as_array();
return true;
}
bool
ServiceInfo::UpdateAddr()
{
if (m_CachedAddr.IsZero())
{
return CalculateAddress(m_CachedAddr.as_array());
}
return true;
}
std::string
ServiceInfo::ToString() const
{
return fmt::format("[ServiceInfo e={} s={} v={} x={}]", enckey, signkey, version, vanity);
}
} // namespace service
} // namespace llarp