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