start rewriting networking

This commit is contained in:
Lion Kortlepel
2024-01-15 20:39:32 +01:00
parent 443871ec0f
commit 7e9bb0cbf2
18 changed files with 150 additions and 2046 deletions

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@@ -1,88 +0,0 @@
#pragma once
#include <chrono>
#include <memory>
#include <optional>
#include <queue>
#include <string>
#include <unordered_set>
#include "BoostAliases.h"
#include "Common.h"
#include "Compat.h"
#include "RWMutex.h"
#include "Sync.h"
#include "VehicleData.h"
class TServer;
#ifdef BEAMMP_WINDOWS
// for socklen_t
#include <WS2tcpip.h>
#endif // WINDOWS
struct TConnection final {
ip::tcp::socket Socket;
ip::tcp::endpoint SockAddr;
};
class TClient final {
public:
using TSetOfVehicleData = std::vector<TVehicleData>;
TClient(TServer& Server, ip::tcp::socket&& Socket);
TClient(const TClient&) = delete;
~TClient();
TClient& operator=(const TClient&) = delete;
void AddNewCar(int Ident, const std::string& Data);
void SetCarData(int Ident, const std::string& Data);
void SetCarPosition(int Ident, const std::string& Data);
void SetName(const std::string& NewName) { Name = NewName; }
void SetRoles(const std::string& NewRole) { Role = NewRole; }
void SetIdentifier(const std::string& key, const std::string& value);
std::string GetCarData(int Ident);
std::string GetCarPositionRaw(int Ident);
bool IsDisconnected() const { return !TCPSocket->is_open(); }
// locks
void DeleteCar(int Ident);
[[nodiscard]] int GetOpenCarID() const;
[[nodiscard]] int GetCarCount() const;
void ClearCars();
void EnqueuePacket(const std::vector<uint8_t>& Packet);
void SetIsConnected(bool NewIsConnected) { IsConnected = NewIsConnected; }
[[nodiscard]] TServer& Server() const;
void UpdatePingTime();
int SecondsSinceLastPing();
Sync<bool> IsConnected = false;
Sync<bool> IsSynced = false;
Sync<bool> IsSyncing = false;
Sync<std::unordered_map<std::string, std::string>> Identifiers;
Sync<ip::tcp::socket> TCPSocket;
Sync<ip::tcp::socket> DownSocket;
Sync<ip::udp::endpoint> UDPAddress {};
Sync<int> UnicycleID = -1;
Sync<std::string> Role;
Sync<std::string> DID;
Sync<int> ID = -1;
Sync<bool> IsGuest = false;
Sync<std::string> Name = std::string("Unknown Client");
Sync<TSetOfVehicleData> VehicleData;
Sync<SparseArray<std::string>> VehiclePosition;
Sync<std::queue<std::vector<uint8_t>>> MissedPacketsQueue;
Sync<std::chrono::time_point<std::chrono::high_resolution_clock>> LastPingTime;
friend class TNetwork;
private:
/// ONLY call after the client has been cleaned up, all cars deleted, etc.
void CloseSockets(std::string_view Reason);
void InsertVehicle(int ID, const std::string& Data);
TServer& mServer;
};
std::optional<std::shared_ptr<TClient>> GetClient(class TServer& Server, int ID);

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@@ -265,57 +265,5 @@ void RegisterThread(const std::string& str);
void LogChatMessage(const std::string& name, int id, const std::string& msg);
#define Biggest 30000
template <typename T>
inline T Comp(const T& Data) {
std::array<char, Biggest> C {};
// obsolete
C.fill(0);
z_stream defstream;
defstream.zalloc = nullptr;
defstream.zfree = nullptr;
defstream.opaque = nullptr;
defstream.avail_in = uInt(Data.size());
defstream.next_in = const_cast<Bytef*>(reinterpret_cast<const Bytef*>(&Data[0]));
defstream.avail_out = Biggest;
defstream.next_out = reinterpret_cast<Bytef*>(C.data());
deflateInit(&defstream, Z_BEST_COMPRESSION);
deflate(&defstream, Z_SYNC_FLUSH);
deflate(&defstream, Z_FINISH);
deflateEnd(&defstream);
size_t TotalOut = defstream.total_out;
T Ret;
Ret.resize(TotalOut);
std::fill(Ret.begin(), Ret.end(), 0);
std::copy_n(C.begin(), TotalOut, Ret.begin());
return Ret;
}
template <typename T>
inline T DeComp(const T& Compressed) {
std::array<char, Biggest> C {};
// not needed
C.fill(0);
z_stream infstream;
infstream.zalloc = nullptr;
infstream.zfree = nullptr;
infstream.opaque = nullptr;
infstream.avail_in = Biggest;
infstream.next_in = const_cast<Bytef*>(reinterpret_cast<const Bytef*>(&Compressed[0]));
infstream.avail_out = Biggest;
infstream.next_out = const_cast<Bytef*>(reinterpret_cast<const Bytef*>(C.data()));
inflateInit(&infstream);
inflate(&infstream, Z_SYNC_FLUSH);
inflate(&infstream, Z_FINISH);
inflateEnd(&infstream);
size_t TotalOut = infstream.total_out;
T Ret;
Ret.resize(TotalOut);
std::fill(Ret.begin(), Ret.end(), 0);
std::copy_n(C.begin(), TotalOut, Ret.begin());
return Ret;
}
std::string GetPlatformAgnosticErrorString();
#define S_DSN SU_RAW

64
include/Network.h Normal file
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@@ -0,0 +1,64 @@
#pragma once
#include "State.h"
#include "Sync.h"
#include "Transport.h"
#include <boost/asio.hpp>
#include <cstdint>
#include <memory>
#include <filesystem>
#include <unordered_map>
#include <vector>
using ClientID = uint32_t;
using VehicleID = uint16_t;
using namespace boost::asio;
struct Packet {
bmp::Purpose purpose;
bmp::Flags flags;
std::vector<uint8_t> data;
bmp::Header header() const;
};
struct Client {
using Ptr = std::shared_ptr<Client>;
ClientID id;
bmp::State state;
Packet tcp_read(boost::system::error_code& ec);
void tcp_write(const Packet& packet, boost::system::error_code& ec);
void tcp_write_file_raw(const std::filesystem::path& path, boost::system::error_code& ec);
Packet udp_read(boost::system::error_code& ec, ip::udp::socket& socket);
void udp_write(const Packet& packet, ip::udp::socket& socket, boost::system::error_code& ec);
Client(ip::udp::endpoint& ep, ip::tcp::socket&& socket);
~Client();
private:
std::mutex m_tcp_read_mtx;
std::mutex m_tcp_write_mtx;
std::mutex m_udp_read_mtx;
ip::udp::endpoint m_udp_ep;
ip::tcp::socket m_tcp_socket;
};
struct Vehicle {
using Ptr = std::shared_ptr<Vehicle>;
ClientID owner;
std::vector<uint8_t> data;
};
class Network {
public:
private:
Sync<std::unordered_map<ClientID, Client::Ptr>> m_clients;
Sync<std::unordered_map<VehicleID, Vehicle::Ptr>> m_vehicles;
boost::asio::io_context m_io;
};

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@@ -1,9 +1,10 @@
#pragma once
#include <boost/thread/synchronized_value.hpp>
#include <mutex>
/// This header provides convenience aliases for synchronization primitives.
template<typename T>
using Sync = boost::synchronized_value<T>;
using Sync = boost::synchronized_value<T, std::recursive_mutex>;

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@@ -1,57 +0,0 @@
#pragma once
#include "BoostAliases.h"
#include "Compat.h"
#include "TResourceManager.h"
#include "TServer.h"
#include <boost/asio/io_context.hpp>
#include <boost/asio/ip/udp.hpp>
struct TConnection;
class TNetwork {
public:
TNetwork(TServer& Server, TPPSMonitor& PPSMonitor, TResourceManager& ResourceManager);
[[nodiscard]] bool TCPSend(TClient& c, const std::vector<uint8_t>& Data, bool IsSync = false);
[[nodiscard]] bool SendLarge(TClient& c, std::vector<uint8_t> Data, bool isSync = false);
[[nodiscard]] bool Respond(TClient& c, const std::vector<uint8_t>& MSG, bool Rel, bool isSync = false);
std::shared_ptr<TClient> CreateClient(ip::tcp::socket&& TCPSock);
std::vector<uint8_t> TCPRcv(TClient& c);
void ClientKick(TClient& c, const std::string& R);
void Disconnect(const std::shared_ptr<TClient>& ClientPtr);
void Disconnect(const std::weak_ptr<TClient>& ClientPtr);
void Disconnect(TClient& Client);
[[nodiscard]] bool SyncClient(const std::weak_ptr<TClient>& c);
void Identify(TConnection&& client);
std::shared_ptr<TClient> Authentication(TConnection&& ClientConnection);
void SyncResources(TClient& c);
[[nodiscard]] bool UDPSend(TClient& Client, std::vector<uint8_t> Data);
void SendToAll(TClient* c, const std::vector<uint8_t>& Data, bool Self, bool Rel);
void UpdatePlayer(TClient& Client);
private:
void UDPServerMain();
void TCPServerMain();
TServer& mServer;
TPPSMonitor& mPPSMonitor;
ip::udp::socket mUDPSock;
TResourceManager& mResourceManager;
std::thread mUDPThread;
std::thread mTCPThread;
std::vector<uint8_t> UDPRcvFromClient(ip::udp::endpoint& ClientEndpoint);
void HandleDownload(TConnection&& TCPSock);
void OnConnect(const std::weak_ptr<TClient>& c);
void TCPClient(const std::shared_ptr<TClient>& c);
void Looper(const std::shared_ptr<TClient>& c);
void Parse(TClient& c, const std::vector<uint8_t>& Packet);
void SendFile(TClient& c, const std::string& Name);
bool TCPSendRaw(TClient& C, ip::tcp::socket& socket, const uint8_t* Data, size_t Size);
void SplitLoad(TClient& c, size_t Sent, size_t Size, bool D, const std::string& Name);
const uint8_t* SendSplit(TClient& c, ip::tcp::socket& Socket, const uint8_t* DataPtr, size_t Size);
};
std::string HashPassword(const std::string& str);
std::vector<uint8_t> StringToVector(const std::string& Str);

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@@ -1,27 +0,0 @@
#pragma once
#include "Common.h"
#include "TServer.h"
#include <optional>
class TNetwork;
class TPPSMonitor : public IThreaded {
public:
explicit TPPSMonitor(TServer& Server);
virtual ~TPPSMonitor() {}
void operator()() override;
void SetInternalPPS(int NewPPS) { mInternalPPS = NewPPS; }
void IncrementInternalPPS() { ++mInternalPPS; }
[[nodiscard]] int InternalPPS() const { return mInternalPPS; }
void SetNetwork(TNetwork& Server) { mNetwork = std::ref(Server); }
private:
TNetwork& Network() { return mNetwork->get(); }
TServer& mServer;
std::optional<std::reference_wrapper<TNetwork>> mNetwork { std::nullopt };
int mInternalPPS { 0 };
};

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@@ -1,21 +0,0 @@
#pragma once
#include "Common.h"
class TResourceManager {
public:
TResourceManager();
[[nodiscard]] size_t MaxModSize() const { return mMaxModSize; }
[[nodiscard]] std::string FileList() const { return mFileList; }
[[nodiscard]] std::string TrimmedList() const { return mTrimmedList; }
[[nodiscard]] std::string FileSizes() const { return mFileSizes; }
[[nodiscard]] int ModsLoaded() const { return mModsLoaded; }
private:
size_t mMaxModSize = 0;
std::string mFileSizes;
std::string mFileList;
std::string mTrimmedList;
int mModsLoaded = 0;
};

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@@ -1,59 +0,0 @@
#pragma once
#include "IThreaded.h"
#include "RWMutex.h"
#include "TScopedTimer.h"
#include <functional>
#include <memory>
#include <mutex>
#include <unordered_set>
#include "BoostAliases.h"
class TClient;
class TNetwork;
class TPPSMonitor;
class TServer final {
public:
using TClientSet = std::unordered_set<std::shared_ptr<TClient>>;
TServer(const std::vector<std::string_view>& Arguments);
void InsertClient(const std::shared_ptr<TClient>& Ptr);
void RemoveClient(const std::weak_ptr<TClient>&);
void RemoveClient(TClient&);
// in Fn, return true to continue, return false to break
void ForEachClient(const std::function<bool(const std::shared_ptr<TClient>&)> Fn);
size_t ClientCount() const;
void GlobalParser(const std::shared_ptr<TClient>& Client, std::vector<uint8_t>&& Packet, TPPSMonitor& PPSMonitor, TNetwork& Network);
static void HandleEvent(TClient& c, const std::string& Data);
RWMutex& GetClientMutex() const { return mClientsMutex; }
// thread-safe ID lookup & claim
void ClaimFreeIDFor(TClient& Client);
const TScopedTimer UptimeTimer;
// asio io context
io_context& IoCtx() { return mIoCtx; }
private:
io_context mIoCtx {};
TClientSet mClients;
mutable RWMutex mClientsMutex;
static void ParseVehicle(TClient& c, const std::string& Pckt, TNetwork& Network);
static bool ShouldSpawn(TClient& c, const std::string& CarJson, int ID);
static bool IsUnicycle(TClient& c, const std::string& CarJson);
static void Apply(TClient& c, int VID, const std::string& pckt);
void HandlePosition(TClient& c, const std::string& Packet);
};
struct BufferView {
uint8_t* Data { nullptr };
size_t Size { 0 };
const uint8_t* data() const { return Data; }
uint8_t* data() { return Data; }
size_t size() const { return Size; }
};