lokinet/llarp/dht/publish_intro.cpp
2018-07-11 09:20:14 -04:00

77 lines
2.0 KiB
C++

#include <llarp/dht/context.hpp>
#include <llarp/dht/messages/pubintro.hpp>
#include <llarp/messages/dht.hpp>
#include "router.hpp"
namespace llarp
{
namespace dht
{
PublishIntroMessage::~PublishIntroMessage()
{
}
bool
PublishIntroMessage::DecodeKey(llarp_buffer_t key, llarp_buffer_t *val)
{
bool read = false;
if(!BEncodeMaybeReadDictEntry("I", I, read, key, val))
return false;
if(!BEncodeMaybeReadDictInt("R", R, read, key, val))
return false;
if(llarp_buffer_eq(key, "S"))
{
read = true;
hasS = true;
if(!bencode_read_integer(val, &S))
return false;
}
if(!BEncodeMaybeReadDictInt("V", version, read, key, val))
return false;
return read;
}
bool
PublishIntroMessage::HandleMessage(llarp_dht_context *ctx,
std::vector< IMessage * > &replies) const
{
auto &dht = ctx->impl;
if(!I.VerifySignature(&dht.router->crypto))
{
llarp::LogWarn("invalid introset signature");
return false;
}
if(I.W && !I.W->IsValid(dht.router->crypto.shorthash))
{
llarp::LogWarn("proof of work not good enough for IntroSet");
return false;
}
// TODO: make this smarter (?)
dht.services->PutNode(I);
replies.push_back(new GotIntroMessage(txID, &I));
return true;
}
bool
PublishIntroMessage::BEncode(llarp_buffer_t *buf) const
{
if(!bencode_start_dict(buf))
return false;
if(!BEncodeWriteDictMsgType(buf, "A", "I"))
return false;
if(!BEncodeWriteDictEntry("I", I, buf))
return false;
if(!BEncodeWriteDictInt(buf, "R", R))
return false;
if(hasS)
{
if(!BEncodeWriteDictInt(buf, "S", S))
return false;
}
if(!BEncodeWriteDictInt(buf, "V", LLARP_PROTO_VERSION))
return false;
return bencode_end(buf);
}
}
}