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161 lines
3.5 KiB
C++
161 lines
3.5 KiB
C++
#ifndef LLARP_SERVICE_INFO_HPP
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#define LLARP_SERVICE_INFO_HPP
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#include <crypto/crypto.hpp>
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#include <service/types.hpp>
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#include <util/bencode.hpp>
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#if __cplusplus >= 201703L
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#include <optional>
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#else
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#include <tl/optional.hpp>
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#endif
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namespace llarp
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{
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namespace service
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{
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struct ServiceInfo final : public llarp::IBEncodeMessage
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{
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private:
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llarp::PubKey enckey;
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llarp::PubKey signkey;
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public:
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VanityNonce vanity;
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#if __cplusplus >= 201703L
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using OptNonce = std::optional< VanityNonce >;
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#else
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using OptNonce = tl::optional< VanityNonce >;
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#endif
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ServiceInfo() = default;
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ServiceInfo(ServiceInfo&& other)
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{
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enckey = std::move(other.enckey);
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signkey = std::move(other.signkey);
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version = std::move(other.version);
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vanity = std::move(other.vanity);
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m_CachedAddr = std::move(other.m_CachedAddr);
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}
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ServiceInfo(const ServiceInfo& other)
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: IBEncodeMessage(other.version)
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, enckey(other.enckey)
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, signkey(other.signkey)
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, vanity(other.vanity)
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, m_CachedAddr(other.m_CachedAddr)
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{
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version = other.version;
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}
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void
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RandomizeVanity()
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{
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vanity.Randomize();
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}
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bool
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Verify(llarp::Crypto* crypto, llarp_buffer_t payload,
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const Signature& sig) const
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{
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return crypto->verify(signkey, payload, sig);
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}
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const PubKey&
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EncryptionPublicKey() const
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{
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return enckey;
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}
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bool
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Update(const byte_t* enc, const byte_t* sign,
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const OptNonce& nonce = OptNonce())
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{
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enckey = enc;
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signkey = sign;
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if(nonce)
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{
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vanity = nonce.value();
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}
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return UpdateAddr();
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}
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bool
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operator==(const ServiceInfo& other) const
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{
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return enckey == other.enckey && signkey == other.signkey
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&& version == other.version && vanity == other.vanity;
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}
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bool
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operator!=(const ServiceInfo& other) const
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{
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return !(*this == other);
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}
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ServiceInfo&
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operator=(const ServiceInfo& other)
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{
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enckey = other.enckey;
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signkey = other.signkey;
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version = other.version;
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vanity = other.vanity;
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version = other.version;
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UpdateAddr();
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return *this;
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};
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bool
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operator<(const ServiceInfo& other) const
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{
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return Addr() < other.Addr();
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}
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friend std::ostream&
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operator<<(std::ostream& out, const ServiceInfo& i)
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{
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return out << "[e=" << i.enckey << " s=" << i.signkey
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<< " v=" << i.version << " x=" << i.vanity << "]";
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}
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/// .loki address
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std::string
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Name() const;
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bool
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UpdateAddr();
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const Address&
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Addr() const
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{
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return m_CachedAddr;
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}
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/// calculate our address
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bool CalculateAddress(std::array< byte_t, 32 >& data) const;
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bool
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BDecode(llarp_buffer_t* buf) override
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{
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if(IBEncodeMessage::BDecode(buf))
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return CalculateAddress(m_CachedAddr.as_array());
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return false;
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}
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bool
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BEncode(llarp_buffer_t* buf) const override;
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bool
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DecodeKey(llarp_buffer_t key, llarp_buffer_t* buf) override;
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private:
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Address m_CachedAddr;
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};
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} // namespace service
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} // namespace llarp
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#endif
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