lokinet/llarp/router/rc_lookup_handler.hpp

129 lines
3.3 KiB
C++

#pragma once
#include <chrono>
#include "i_rc_lookup_handler.hpp"
#include <llarp/util/thread/threading.hpp>
#include <unordered_map>
#include <set>
#include <unordered_set>
#include <list>
struct llarp_dht_context;
namespace llarp
{
class NodeDB;
class EventLoop;
namespace service
{
struct Context;
} // namespace service
struct ILinkManager;
struct RCLookupHandler final : public I_RCLookupHandler
{
public:
using Work_t = std::function<void(void)>;
using WorkerFunc_t = std::function<void(Work_t)>;
using CallbacksQueue = std::list<RCRequestCallback>;
~RCLookupHandler() override = default;
void
AddValidRouter(const RouterID& router) override EXCLUDES(_mutex);
void
RemoveValidRouter(const RouterID& router) override EXCLUDES(_mutex);
void
SetRouterWhitelist(const std::vector<RouterID>& routers) override EXCLUDES(_mutex);
bool
HaveReceivedWhitelist();
void
GetRC(const RouterID& router, RCRequestCallback callback, bool forceLookup = false) override
EXCLUDES(_mutex);
bool
RemoteIsAllowed(const RouterID& remote) const override EXCLUDES(_mutex);
bool
CheckRC(const RouterContact& rc) const override;
bool
GetRandomWhitelistRouter(RouterID& router) const override EXCLUDES(_mutex);
bool
CheckRenegotiateValid(RouterContact newrc, RouterContact oldrc) override;
void
PeriodicUpdate(llarp_time_t now) override;
void
ExploreNetwork() override;
size_t
NumberOfStrictConnectRouters() const override;
void
Init(
llarp_dht_context* dht,
std::shared_ptr<NodeDB> nodedb,
std::shared_ptr<EventLoop> loop,
WorkerFunc_t dowork,
ILinkManager* linkManager,
service::Context* hiddenServiceContext,
const std::unordered_set<RouterID>& strictConnectPubkeys,
const std::set<RouterContact>& bootstrapRCList,
bool useWhitelist_arg,
bool isServiceNode_arg);
private:
void
HandleDHTLookupResult(RouterID remote, const std::vector<RouterContact>& results);
bool
HavePendingLookup(RouterID remote) const EXCLUDES(_mutex);
bool
RemoteInBootstrap(const RouterID& remote) const;
void
FinalizeRequest(const RouterID& router, const RouterContact* const rc, RCRequestResult result)
EXCLUDES(_mutex);
mutable util::Mutex _mutex; // protects pendingCallbacks, whitelistRouters
llarp_dht_context* _dht = nullptr;
std::shared_ptr<NodeDB> _nodedb;
std::shared_ptr<EventLoop> _loop;
WorkerFunc_t _work = nullptr;
service::Context* _hiddenServiceContext = nullptr;
ILinkManager* _linkManager = nullptr;
/// explicit whitelist of routers we will connect to directly (not for
/// service nodes)
std::unordered_set<RouterID> _strictConnectPubkeys;
std::set<RouterContact> _bootstrapRCList;
std::unordered_set<RouterID> _bootstrapRouterIDList;
std::unordered_map<RouterID, CallbacksQueue> pendingCallbacks GUARDED_BY(_mutex);
bool useWhitelist = false;
bool isServiceNode = false;
std::unordered_set<RouterID> whitelistRouters GUARDED_BY(_mutex);
using TimePoint = std::chrono::steady_clock::time_point;
std::unordered_map<RouterID, TimePoint> _routerLookupTimes;
};
} // namespace llarp