lokinet/llarp/dht/got_router.cpp
Ryan Tharp 67390de0c2 merge
2018-11-03 06:19:18 -07:00

110 lines
2.5 KiB
C++

#include <llarp/dht/context.hpp>
#include <llarp/dht/messages/gotrouter.hpp>
#include "router.hpp"
namespace llarp
{
namespace dht
{
GotRouterMessage::~GotRouterMessage()
{
}
bool
GotRouterMessage::BEncode(llarp_buffer_t *buf) const
{
if(!bencode_start_dict(buf))
return false;
// message type
if(!BEncodeWriteDictMsgType(buf, "A", "S"))
return false;
// near
if(N.size())
{
if(!BEncodeWriteDictList("N", N, buf))
return false;
}
if(!BEncodeWriteDictList("R", R, buf))
return false;
// txid
if(!BEncodeWriteDictInt("T", txid, buf))
return false;
// version
if(!BEncodeWriteDictInt("V", version, buf))
return false;
return bencode_end(buf);
}
bool
GotRouterMessage::DecodeKey(llarp_buffer_t key, llarp_buffer_t *val)
{
if(llarp_buffer_eq(key, "N"))
{
return BEncodeReadList(N, val);
}
if(llarp_buffer_eq(key, "R"))
{
return BEncodeReadList(R, val);
}
if(llarp_buffer_eq(key, "T"))
{
return bencode_read_integer(val, &txid);
}
bool read = false;
if(!BEncodeMaybeReadVersion("V", version, LLARP_PROTO_VERSION, read, key,
val))
return false;
return read;
}
bool
GotRouterMessage::HandleMessage(
llarp_dht_context *ctx,
std::vector< std::unique_ptr< IMessage > > &replies) const
{
auto &dht = ctx->impl;
if(relayed)
{
auto pathset = ctx->impl.router->paths.GetLocalPathSet(pathID);
return pathset && pathset->HandleGotRouterMessage(this);
}
// not relayed
TXOwner owner(From, txid);
if(dht.pendingExploreLookups.HasPendingLookupFrom(owner))
{
if(N.size() == 0)
dht.pendingExploreLookups.NotFound(owner);
else
{
dht.pendingExploreLookups.Found(owner, From, N);
}
return true;
}
// not explore lookup
if(!dht.pendingRouterLookups.HasPendingLookupFrom(owner))
{
llarp::LogWarn("Unwarrented GRM from ", From, " txid=", txid);
return false;
}
// no pending lookup
llarp::LogInfo("DHT no pending lookup");
if(R.size() == 1)
dht.pendingRouterLookups.Found(owner, R[0].pubkey, {R[0]});
else
dht.pendingRouterLookups.NotFound(owner);
return true;
}
} // namespace dht
} // namespace llarp