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4cf0909d52ad3935333d7ed8b235411eeca202ac
DarkflameServer/dNet/AuthPackets.cpp
Aaron Kimbrell ebcfd54915 fix: tell the player when the zone they go to gets no instance 
The master server dropped a transfer request it started no instance
for, so the world server never heard back and the player waited. It
now answers the request with an empty address and the reason in place
of the port: no room for another instance (max_instances), a zone that
is not in the ZoneTable, or another reason. A request for a private
zone that does not exist is answered the same way.

The world server passes this on as a TRANSFER_TO_WORLD without an
address, which the client shows as a failed map change, and leaves the
character where it is. The auth server fails the login when there is
no character select to send the player to.

Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>
2026-11-10 16:28:34 -06:00

347 lines
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#include "AuthPackets.h"
#include "PacketCapture.h"
#include "MasterPackets.h"
#include <ctime>
#include "BitStreamUtils.h"
#include "dNetCommon.h"
#include "dServer.h"
#include "Logger.h"
#include "Database.h"
#include "ZoneInstanceManager.h"
#include "MD5.h"
#include "GeneralUtils.h"
#include "dClient/ClientVersion.h"
#include <bcrypt/BCrypt.hpp>
#include "BitStream.h"
#include <future>
#include "Game.h"
#include "dConfig.h"
#include "eServerDisconnectIdentifiers.h"
#include "eLoginResponse.h"
#include "ServiceType.h"
#include "MessageType/Server.h"
#include "MessageType/Master.h"
#include "eGameMasterLevel.h"
#include "StringifiedEnum.h"
#include "ClientSysInfo.h"
#include <functional>
#include <map>
#include <memory>
namespace {
std::vector<uint32_t> claimCodes;
}
void AuthPackets::LoadClaimCodes() {
if(!claimCodes.empty()) return;
auto rcstring = Game::config->GetValue("rewardcodes");
auto codestrings = GeneralUtils::SplitString(rcstring, ',');
for(auto const &codestring: codestrings){
const auto code = GeneralUtils::TryParse<uint32_t>(codestring);
if (code && code.value() != -1) claimCodes.push_back(code.value());
}
}
std::string CleanReceivedString(const std::string& str) {
std::string toReturn = str;
const auto removed = std::ranges::find_if(toReturn, [](unsigned char c) { return isprint(c) == 0 && isblank(c) == 0; });
toReturn.erase(removed, toReturn.end());
return toReturn;
}
void AuthPackets::LoginRequest::Serialize(RakNet::BitStream& bitStream) const {
bitStream.Write(username);
bitStream.Write(password);
bitStream.Write(localeID);
bitStream.Write(clientOS);
bitStream.Write(memoryStats);
bitStream.Write(videoCard);
bitStream.Write(numberOfProcessors);
bitStream.Write(processorType);
bitStream.Write(processorLevel);
bitStream.Write(processorRevision);
bitStream.Write(osVersionInfoSize);
bitStream.Write(majorVersion);
bitStream.Write(minorVersion);
bitStream.Write(buildNumber);
bitStream.Write(platformID);
}
bool AuthPackets::LoginRequest::Deserialize(RakNet::BitStream& bitStream) {
VALIDATE_READ(bitStream.Read(username));
VALIDATE_READ(bitStream.Read(password));
VALIDATE_READ(bitStream.Read(localeID));
VALIDATE_READ(bitStream.Read(clientOS));
VALIDATE_READ(bitStream.Read(memoryStats));
VALIDATE_READ(bitStream.Read(videoCard));
VALIDATE_READ(bitStream.Read(numberOfProcessors));
VALIDATE_READ(bitStream.Read(processorType));
VALIDATE_READ(bitStream.Read(processorLevel));
VALIDATE_READ(bitStream.Read(processorRevision));
VALIDATE_READ(bitStream.Read(osVersionInfoSize));
VALIDATE_READ(bitStream.Read(majorVersion));
VALIDATE_READ(bitStream.Read(minorVersion));
VALIDATE_READ(bitStream.Read(buildNumber));
VALIDATE_READ(bitStream.Read(platformID));
return true;
}
namespace {
const std::map<MessageType::Auth, std::function<std::unique_ptr<AuthPackets::LoginRequest>()>> g_Handlers = {
{ MessageType::Auth::LOGIN_REQUEST, []() { return std::make_unique<AuthPackets::LoginRequest>(); } },
};
}
void AuthPackets::Handle(RakNet::BitStream& inStream, const SystemAddress& sysAddr, const uint32_t packetID) {
const auto messageID = static_cast<MessageType::Auth>(packetID);
const auto it = g_Handlers.find(messageID);
if (it == g_Handlers.end()) {
LOG_DEBUG("Unhandled auth packet %i", packetID);
return;
}
auto request = it->second();
request->sysAddr = sysAddr;
if (!request->Deserialize(inStream)) {
LOG("Failed to read auth packet %s", StringifiedEnum::ToString(messageID).data());
return;
}
request->Handle();
}
void AuthPackets::LoginRequest::Handle() {
auto* const server = Game::server;
const auto& packet = *this; // the old handler's sysAddr
// Each step of the login stamps itself here as it happens; the response carries them to the client
Stamps stamps;
stamps.Add(eStamps::PASSPORT_AUTH_START);
const auto username = this->username.GetAsString();
LOG_DEBUG("Locale ID: %s", StringifiedEnum::ToString(localeID).data());
LOG_DEBUG("Operating System: %s", StringifiedEnum::ToString(clientOS).data());
stamps.Add(eStamps::PASSPORT_AUTH_CLIENT_OS, static_cast<uint32_t>(clientOS));
LOG_DEBUG("Memory Stats [%s]", CleanReceivedString(memoryStats.GetAsString()).c_str());
LOG_DEBUG("VideoCard Info: [%s]", CleanReceivedString(videoCard.GetAsString()).c_str());
// Processor/CPU info
LOG_DEBUG("CPU Info: [#Processors: %i, Processor Type: %i, Processor Level: %i, Processor Revision: %i]", numberOfProcessors, processorType, processorLevel, processorRevision);
// OS Info
LOG_DEBUG("OS Info: [Size: %i, Major: %i, Minor %i, Buid#: %i, platformID: %i]", osVersionInfoSize, majorVersion, minorVersion, buildNumber, platformID);
// Fetch account details
stamps.Add(eStamps::PASSPORT_AUTH_DB_SELECT_START);
auto accountInfo = Database::Get()->GetAccountInfo(username);
stamps.Add(eStamps::PASSPORT_AUTH_DB_SELECT_FINISH, accountInfo ? 1 : 0);
// The dashboard's packet capture: this connection is this account's (failed logins included)
PacketCapture::Bind(sysAddr, accountInfo ? accountInfo->id : 0, username);
if (!accountInfo) {
LOG("No user by name %s found!", username.c_str());
stamps.Add(eStamps::PASSPORT_AUTH_ERROR, 1);
AuthPackets::SendLoginResponse(server, sysAddr, eLoginResponse::INVALID_USER, "", "", 2001, username, stamps);
return;
}
// The password first: someone who doesn't know it learns nothing about the account (ban details, lock, play key),
// and a failed attempt changes nothing (an expired ban is only lifted for the real owner)
stamps.Add(eStamps::PASSPORT_AUTH_LEGOINT_WEBSERVICE_START);
const bool passwordMatches = ::bcrypt_checkpw(password.GetAsString().c_str(), accountInfo->bcryptPassword.c_str()) == 0;
stamps.Add(eStamps::PASSPORT_AUTH_LEGOINT_WEBSERVICE_FINISH, passwordMatches ? 1 : 0);
if (!passwordMatches) {
stamps.Add(eStamps::PASSPORT_AUTH_ERROR, 1);
AuthPackets::SendLoginResponse(server, sysAddr, eLoginResponse::WRONG_PASS, "", "", 2001, username, stamps);
LOG("Wrong password used");
return;
}
//If we aren't running in live mode, then only GMs are allowed to enter:
if (Game::config->GetValue<bool>("closed_to_non_devs", false) && accountInfo->maxGmLevel == eGameMasterLevel::CIVILIAN) {
stamps.Add(eStamps::GM_REQUIRED, 1);
AuthPackets::SendLoginResponse(server, sysAddr, eLoginResponse::PERMISSIONS_NOT_HIGH_ENOUGH, "The server is currently only open to developers.", "", 2001, username, stamps);
return;
}
if (Game::config->GetValue("dont_use_keys") != "1" && accountInfo->maxGmLevel == eGameMasterLevel::CIVILIAN) {
//Check to see if we have a play key:
if (accountInfo->playKeyId == 0) {
stamps.Add(eStamps::PASSPORT_AUTH_ERROR, 1);
AuthPackets::SendLoginResponse(server, sysAddr, eLoginResponse::PERMISSIONS_NOT_HIGH_ENOUGH, "Your account doesn't have a play key associated with it!", "", 2001, username, stamps);
LOG("User %s tried to log in, but they don't have a play key.", username.c_str());
return;
}
//Check if the play key is _valid_:
auto playKeyStatus = Database::Get()->IsPlaykeyActive(accountInfo->playKeyId);
if (!playKeyStatus) {
stamps.Add(eStamps::PASSPORT_AUTH_ERROR, 1);
AuthPackets::SendLoginResponse(server, sysAddr, eLoginResponse::PERMISSIONS_NOT_HIGH_ENOUGH, "Your account doesn't have a valid play key associated with it!", "", 2001, username, stamps);
return;
}
if (!playKeyStatus.value()) {
stamps.Add(eStamps::PASSPORT_AUTH_ERROR, 1);
AuthPackets::SendLoginResponse(server, sysAddr, eLoginResponse::PERMISSIONS_NOT_HIGH_ENOUGH, "Your play key has been disabled.", "", 2001, username, stamps);
LOG("User %s tried to log in, but their play key was disabled", username.c_str());
return;
}
} else if (Game::config->GetValue("dont_use_keys") == "1" || accountInfo->maxGmLevel > eGameMasterLevel::CIVILIAN){
stamps.Add(eStamps::PASSPORT_AUTH_BYPASS, 1);
}
// A temporary ban that has run out is lifted as the player logs in
if (accountInfo->banned && accountInfo->banExpires > 0 && accountInfo->banExpires <= static_cast<int64_t>(std::time(nullptr))) {
stamps.Add(eStamps::PASSPORT_AUTH_DB_INSERT_START);
Database::Get()->SetAccountBan(accountInfo->id, false, 0, "");
Database::Get()->InsertAccountNote({ 0, accountInfo->id, "unban", "Temporary ban ended", "[server]", static_cast<int64_t>(std::time(nullptr)) });
stamps.Add(eStamps::PASSPORT_AUTH_DB_INSERT_FINISH, 1);
accountInfo->banned = false;
LOG("Temporary ban of %s ended", username.c_str());
}
if (accountInfo->banned) {
stamps.Add(eStamps::PASSPORT_AUTH_ERROR, 1);
std::string message;
if (accountInfo->banExpires > 0) {
char until[32];
const std::time_t expires = accountInfo->banExpires;
std::strftime(until, sizeof(until), "%Y-%m-%d %H:%M UTC", std::gmtime(&expires));
message = std::string("You are banned until ") + until + ".";
}
if (!accountInfo->banReason.empty()) message += (message.empty() ? "" : " ") + std::string("Reason: ") + accountInfo->banReason;
AuthPackets::SendLoginResponse(server, sysAddr, eLoginResponse::BANNED, message, "", 2001, username, stamps);
return;
}
if (accountInfo->locked) {
stamps.Add(eStamps::PASSPORT_AUTH_ERROR, 1);
AuthPackets::SendLoginResponse(server, sysAddr, eLoginResponse::ACCOUNT_LOCKED, "", "", 2001, username, stamps);
return;
}
{
SystemAddress system = sysAddr; //Copy the sysAddr before the Packet gets destroyed from main
// Where accounts log in from, so staff can see accounts that share a connection (log_login_addresses, on by default)
if (Game::config->GetValue("log_login_addresses") != "0") {
stamps.Add(eStamps::PASSPORT_AUTH_DB_INSERT_START);
Database::Get()->RecordLoginAddress(accountInfo->id, system.ToString(false), static_cast<int64_t>(std::time(nullptr)));
stamps.Add(eStamps::PASSPORT_AUTH_DB_INSERT_FINISH, 1);
}
// The system description the client sent, as it sent it (log_client_sysinfo, on by default). Only the address
// follows log_login_addresses. One row per account while nothing but the memory in use changes.
if (Game::config->GetValue("log_client_sysinfo") != "0") {
const auto memoryText = memoryStats.GetAsString();
const auto memory = ClientSysInfo::ParseMemoryStats(memoryText);
IClientSysInfo::SysInfoRow info;
info.accountId = accountInfo->id;
info.firstSeen = info.lastSeen = static_cast<int64_t>(std::time(nullptr));
if (Game::config->GetValue("log_login_addresses") != "0") info.ip = system.ToString(false);
info.clientOs = static_cast<uint32_t>(clientOS);
info.memoryStats = memoryText;
info.memoryTotalKb = memory.totalPhysKb && *memory.totalPhysKb > 0 ? static_cast<uint64_t>(*memory.totalPhysKb) : 0;
info.videoCard = videoCard.GetAsString();
info.numberOfProcessors = numberOfProcessors;
info.processorType = processorType;
info.processorLevel = processorLevel;
info.processorRevision = processorRevision;
info.osVersionInfoSize = osVersionInfoSize;
info.majorVersion = majorVersion;
info.minorVersion = minorVersion;
info.buildNumber = buildNumber;
info.platformId = platformID;
Database::Get()->RecordClientSysInfo(info);
}
if (!server->GetIsConnectedToMaster()) {
stamps.Add(eStamps::PASSPORT_AUTH_WORLD_DISCONNECT, 1);
AuthPackets::SendLoginResponse(server, system, eLoginResponse::GENERAL_FAILED, "", "", 0, username, stamps);
return;
}
// Ask master for a world server to send the player to
stamps.Add(eStamps::PASSPORT_AUTH_WORLD_COMMUNICATION_START);
// The stamps go along: master adds its steps and sends them back with the world server
ZoneInstanceManager::Instance()->RequestZoneTransfer(server, 0, 0, false, stamps, [system, server, username](bool mythranShift, uint32_t zoneID, uint32_t zoneInstance, uint32_t zoneClone, std::string zoneIP, uint16_t zonePort, Stamps stamps) mutable {
// An empty address is the master server's answer when no character select runs
if (zoneIP.empty()) {
AuthPackets::SendLoginResponse(server, system, eLoginResponse::GENERAL_FAILED, "", "", 0, username, stamps);
return;
}
AuthPackets::SendLoginResponse(server, system, eLoginResponse::SUCCESS, "", zoneIP, zonePort, username, stamps);
});
}
for(auto const code: claimCodes){
Database::Get()->InsertRewardCode(accountInfo->id, code);
}
}
void AuthPackets::SendLoginResponse(dServer* server, const SystemAddress& sysAddr, eLoginResponse responseCode, const std::string& errorMsg, const std::string& wServerIP, uint16_t wServerPort, std::string username, Stamps& stamps) {
ClientPackets::LoginResponse loginResponse;
loginResponse.responseCode = responseCode;
// Event Gating
loginResponse.events[0] = LUString(Game::config->GetValue("event_1"));
loginResponse.events[1] = LUString(Game::config->GetValue("event_2"));
loginResponse.events[2] = LUString(Game::config->GetValue("event_3"));
loginResponse.events[3] = LUString(Game::config->GetValue("event_4"));
loginResponse.events[4] = LUString(Game::config->GetValue("event_5"));
loginResponse.events[5] = LUString(Game::config->GetValue("event_6"));
loginResponse.events[6] = LUString(Game::config->GetValue("event_7"));
loginResponse.events[7] = LUString(Game::config->GetValue("event_8"));
loginResponse.versionMajor =
GeneralUtils::TryParse<uint16_t>(Game::config->GetValue("version_major")).value_or(ClientVersion::major);
loginResponse.versionCurrent =
GeneralUtils::TryParse<uint16_t>(Game::config->GetValue("version_current")).value_or(ClientVersion::current);
loginResponse.versionMinor =
GeneralUtils::TryParse<uint16_t>(Game::config->GetValue("version_minor")).value_or(ClientVersion::minor);
// The user key
// 16 bytes as 32 hex characters, which fills the client's key field
const std::string sessionKey = GeneralUtils::GenerateUnpredictableHexString(16);
loginResponse.userKey = LUWString(sessionKey);
// World Server IP
loginResponse.worldServerIP = LUString(wServerIP);
// World Server Redirect port
loginResponse.worldServerPort = wServerPort;
// Custom error message
loginResponse.errorMessage = errorMsg;
//Inform the master server that we've created a session for this user, before the client can reach the world server:
if (responseCode == eLoginResponse::SUCCESS) {
stamps.Add(eStamps::PASSPORT_AUTH_IM_COMMUNICATION_START);
MasterPackets::SetSessionKey setSessionKey;
setSessionKey.sessionKey = LUString(sessionKey);
setSessionKey.username = LUString(username);
stamps.Add(eStamps::PASSPORT_AUTH_IM_LOGIN_START);
MasterPackets::SendToMaster(setSessionKey, server);
stamps.Add(eStamps::PASSPORT_AUTH_IM_COMMUNICATION_END, 1);
LOG("Set session key for user %s", username.c_str());
stamps.Add(eStamps::PASSPORT_AUTH_WORLD_COMMUNICATION_FINISH, wServerPort);
}
stamps.Log("Login of " + username);
loginResponse.stamps = stamps;
loginResponse.Send(sysAddr);
}
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