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DarkflameServer/dNet/MasterPackets.cpp
Aaron Kimbrell a93f5f810b feat(master): the server list names each server's port and machine 
Master keeps the address and port auth, chat, the dashboard and the UGC
server report when they connect and sends them, with its own and every
world's, after the list's world states. A server's machine is the address
master sees its connection come from; loopback and master's external_ip are
master's machine. Servers can report another port than their RakNet one; the
UGC server reports its web port.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-30 02:39:24 -05:00

313 lines
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#include "MasterPackets.h"
#include "BitStream.h"
#include "dCommonVars.h"
#include "dServer.h"
#include "Game.h"
#include "ServiceType.h"
#include "MessageType/Master.h"
#include "BitStreamUtils.h"
#include <algorithm>
#include <string>
namespace {
// u32 length and 1 byte per character. A longer string is cut to maxLength when read (the rest is skipped).
bool ReadCappedString(RakNet::BitStream& bitStream, std::string& value, const uint32_t maxLength) {
uint32_t length{};
VALIDATE_READ(bitStream.Read(length));
value.resize(std::min(length, maxLength));
return value.empty() || bitStream.ReadBits(reinterpret_cast<unsigned char*>(value.data()), BYTES_TO_BITS(value.size()), true);
}
}
void MasterPackets::SendToMaster(const LUBitStream& msg, dServer* server) {
RakNet::BitStream bitStream;
msg.WritePacket(bitStream);
(server ? server : Game::server)->SendToMaster(bitStream);
}
void MasterPackets::SendTo(const SystemAddress& sysAddr, const LUBitStream& msg) {
RakNet::BitStream bitStream;
msg.WritePacket(bitStream);
Game::server->Send(bitStream, sysAddr, false);
}
namespace MasterPackets {
void RequestZoneTransfer::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(requestID);
bitStream.Write(mythranShift);
bitStream.Write(zoneID);
bitStream.Write(cloneID);
stamps.Serialize(bitStream);
}
bool RequestZoneTransfer::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(requestID));
VALIDATE_READ(bitStream.Read(mythranShift));
VALIDATE_READ(bitStream.Read(zoneID));
VALIDATE_READ(bitStream.Read(cloneID));
if (!stamps.Deserialize(bitStream)) stamps = {};
return true;
}
void RequestZoneTransferResponse::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(requestID);
bitStream.Write(mythranShift);
bitStream.Write(zoneID);
bitStream.Write(zoneInstance);
bitStream.Write(zoneClone);
bitStream.Write(serverPort);
bitStream.Write(serverIP);
stamps.Serialize(bitStream);
}
bool RequestZoneTransferResponse::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(requestID));
VALIDATE_READ(bitStream.Read(mythranShift));
VALIDATE_READ(bitStream.Read(zoneID));
VALIDATE_READ(bitStream.Read(zoneInstance));
VALIDATE_READ(bitStream.Read(zoneClone));
VALIDATE_READ(bitStream.Read(serverPort));
VALIDATE_READ(bitStream.Read(serverIP));
if (!stamps.Deserialize(bitStream)) stamps = {};
return true;
}
void ServerInfo::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(port);
bitStream.Write(zoneID);
bitStream.Write(instanceID);
bitStream.Write(serverType);
bitStream.Write(ip);
}
bool ServerInfo::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(port));
VALIDATE_READ(bitStream.Read(zoneID));
VALIDATE_READ(bitStream.Read(instanceID));
VALIDATE_READ(bitStream.Read(serverType));
VALIDATE_READ(bitStream.Read(ip));
return true;
}
void RequestSessionKey::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(username);
}
bool RequestSessionKey::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(username));
return true;
}
void SetSessionKey::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(sessionKey);
bitStream.Write(username);
}
bool SetSessionKey::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(sessionKey));
VALIDATE_READ(bitStream.Read(username));
return true;
}
void SessionKeyResponse::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(sessionKey);
bitStream.Write(username);
}
bool SessionKeyResponse::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(sessionKey));
VALIDATE_READ(bitStream.Read(username));
return true;
}
void NewSessionAlert::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(sessionKey);
bitStream.Write(username);
}
bool NewSessionAlert::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(sessionKey));
VALIDATE_READ(bitStream.Read(username));
return true;
}
void PlayerCountChange::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(zoneID);
bitStream.Write(instanceID);
}
bool PlayerCountChange::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(zoneID));
VALIDATE_READ(bitStream.Read(instanceID));
return true;
}
void CreatePrivateZone::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(zoneID);
bitStream.Write(cloneID);
BitStreamUtils::WriteLengthPrefixed<uint32_t>(bitStream, password);
}
bool CreatePrivateZone::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(zoneID));
VALIDATE_READ(bitStream.Read(cloneID));
VALIDATE_READ(ReadCappedString(bitStream, password, MAX_PASSWORD_LENGTH));
return true;
}
void RequestPrivateZone::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(requestID);
bitStream.Write(mythranShift);
BitStreamUtils::WriteLengthPrefixed<uint32_t>(bitStream, password);
}
bool RequestPrivateZone::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(requestID));
VALIDATE_READ(bitStream.Read(mythranShift));
VALIDATE_READ(ReadCappedString(bitStream, password, MAX_PASSWORD_LENGTH));
return true;
}
void WorldReady::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(zoneID);
bitStream.Write(instanceID);
}
bool WorldReady::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(zoneID));
VALIDATE_READ(bitStream.Read(instanceID));
return true;
}
void WorldReadyInfo::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(zoneID);
bitStream.Write(instanceID);
bitStream.Write(cloneID);
bitStream.Write(ip);
bitStream.Write(port);
bitStream.Write(isPrivate);
}
bool WorldReadyInfo::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(zoneID));
VALIDATE_READ(bitStream.Read(instanceID));
VALIDATE_READ(bitStream.Read(cloneID));
VALIDATE_READ(bitStream.Read(ip));
VALIDATE_READ(bitStream.Read(port));
VALIDATE_READ(bitStream.Read(isPrivate));
return true;
}
void PrepZone::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(zoneID);
if (cloneID != 0) bitStream.Write(cloneID);
}
bool PrepZone::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(zoneID));
cloneID = 0;
if (bitStream.GetNumberOfUnreadBits() >= 32) VALIDATE_READ(bitStream.Read(cloneID));
return true;
}
void WorldShutDown::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(zoneID);
bitStream.Write(instanceID);
}
bool WorldShutDown::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(zoneID));
VALIDATE_READ(bitStream.Read(instanceID));
return true;
}
void AffirmTransfer::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(requestID);
}
bool AffirmTransfer::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(requestID));
return true;
}
void ServerListResponse::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(authOnline);
bitStream.Write(chatOnline);
bitStream.Write<uint32_t>(instances.size());
for (const auto& instance : instances) {
bitStream.Write(instance.mapID);
bitStream.Write(instance.instanceID);
bitStream.Write(instance.cloneID);
bitStream.Write(instance.players);
bitStream.Write(instance.ip);
bitStream.Write(instance.port);
bitStream.Write(instance.isPrivate);
}
bitStream.Write(ugcEnabled);
bitStream.Write(ugcOnline);
bitStream.Write(ugcPid);
for (const auto& instance : instances) bitStream.Write(static_cast<uint8_t>(instance.state));
bitStream.Write<uint32_t>(endpoints.size());
for (const auto& endpoint : endpoints) {
bitStream.Write(endpoint.type);
bitStream.Write(endpoint.zoneID);
bitStream.Write(endpoint.instanceID);
bitStream.Write(endpoint.ip);
bitStream.Write(endpoint.port);
bitStream.Write(endpoint.host);
}
}
bool ServerListResponse::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(authOnline));
VALIDATE_READ(bitStream.Read(chatOnline));
uint32_t count{};
VALIDATE_READ(bitStream.Read(count));
if (count > MAX_INSTANCES) return false;
instances.resize(count);
for (auto& instance : instances) {
VALIDATE_READ(bitStream.Read(instance.mapID));
VALIDATE_READ(bitStream.Read(instance.instanceID));
VALIDATE_READ(bitStream.Read(instance.cloneID));
VALIDATE_READ(bitStream.Read(instance.players));
VALIDATE_READ(bitStream.Read(instance.ip));
VALIDATE_READ(bitStream.Read(instance.port));
VALIDATE_READ(bitStream.Read(instance.isPrivate));
}
VALIDATE_READ(bitStream.Read(ugcEnabled));
VALIDATE_READ(bitStream.Read(ugcOnline));
VALIDATE_READ(bitStream.Read(ugcPid));
for (auto& instance : instances) {
uint8_t state{};
VALIDATE_READ(bitStream.Read(state));
if (state > static_cast<uint8_t>(eState::DRAINING)) return false;
instance.state = static_cast<eState>(state);
}
uint32_t endpointCount{};
VALIDATE_READ(bitStream.Read(endpointCount));
if (endpointCount > MAX_INSTANCES + MAX_OTHER_ENDPOINTS) return false;
endpoints.resize(endpointCount);
for (auto& endpoint : endpoints) {
VALIDATE_READ(bitStream.Read(endpoint.type));
VALIDATE_READ(bitStream.Read(endpoint.zoneID));
VALIDATE_READ(bitStream.Read(endpoint.instanceID));
VALIDATE_READ(bitStream.Read(endpoint.ip));
VALIDATE_READ(bitStream.Read(endpoint.port));
VALIDATE_READ(bitStream.Read(endpoint.host));
}
return true;
}
void InstanceShutdown::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(zoneID);
bitStream.Write(instanceID);
}
bool InstanceShutdown::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(zoneID));
VALIDATE_READ(bitStream.Read(instanceID));
return true;
}
}
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