lokinet/llarp/service/info.hpp
Jason Rhinelander ac1486d0be Replace absl::optional with optional-lite
Step 1 of removing abseil from lokinet.

For the most part this is a drop-in replacement, but there are also a
few changes here to the JSONRPC layer that were needed to work around
current gcc 10 dev snapshot:

- JSONRPC returns a json now instead of an optional<json>.  It doesn't
  make any sense to have a json rpc call that just closes the connection
  with returning anything.  Invoked functions can return a null (default
  constructed) result now if they don't have anything to return (such a
  null value won't be added as "result").
2020-02-19 18:21:25 -04:00

117 lines
2.3 KiB
C++

#ifndef LLARP_SERVICE_INFO_HPP
#define LLARP_SERVICE_INFO_HPP
#include <crypto/types.hpp>
#include <service/address.hpp>
#include <service/vanity.hpp>
#include <util/bencode.hpp>
#include <nonstd/optional.hpp>
namespace llarp
{
namespace service
{
struct ServiceInfo
{
private:
PubKey enckey;
PubKey signkey;
mutable Address m_CachedAddr;
public:
VanityNonce vanity;
uint64_t version = LLARP_PROTO_VERSION;
using OptNonce = nonstd::optional< VanityNonce >;
void
RandomizeVanity()
{
vanity.Randomize();
}
bool
Verify(const llarp_buffer_t& payload, const Signature& sig) const;
const PubKey&
EncryptionPublicKey() const
{
if(m_CachedAddr.IsZero())
{
CalculateAddress(m_CachedAddr.as_array());
}
return enckey;
}
bool
Update(const byte_t* sign, const byte_t* enc,
const OptNonce& nonce = OptNonce());
bool
operator==(const ServiceInfo& other) const
{
return enckey == other.enckey && signkey == other.signkey
&& version == other.version && vanity == other.vanity;
}
bool
operator!=(const ServiceInfo& other) const
{
return !(*this == other);
}
bool
operator<(const ServiceInfo& other) const
{
return Addr() < other.Addr();
}
std::ostream&
print(std::ostream& stream, int level, int spaces) const;
/// .loki address
std::string
Name() const;
bool
UpdateAddr();
const Address&
Addr() const
{
if(m_CachedAddr.IsZero())
{
CalculateAddress(m_CachedAddr.as_array());
}
return m_CachedAddr;
}
/// calculate our address
bool CalculateAddress(std::array< byte_t, 32 >& data) const;
bool
BDecode(llarp_buffer_t* buf)
{
if(not bencode_decode_dict(*this, buf))
return false;
return UpdateAddr();
}
bool
BEncode(llarp_buffer_t* buf) const;
bool
DecodeKey(const llarp_buffer_t& key, llarp_buffer_t* buf);
};
inline std::ostream&
operator<<(std::ostream& out, const ServiceInfo& i)
{
return i.print(out, -1, -1);
}
} // namespace service
} // namespace llarp
#endif