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feat: fully reading auth packets and use stamps (#1398)
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* feat: fully reading auth packets and use stamps

* fix the stupid define

* Address feedback

* no more Stamp(...)
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@aronwk-aaron
aronwk-aaron authored Jan 6, 2024
1 parent 0c104e8 commit 325598c
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Showing 3 changed files with 239 additions and 68 deletions.
215 changes: 148 additions & 67 deletions dNet/AuthPackets.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -24,11 +24,17 @@
#include "eServerMessageType.h"
#include "eMasterMessageType.h"
#include "eGameMasterLevel.h"

#include "StringifiedEnum.h"
namespace {
std::vector<uint32_t> claimCodes;
}

void Stamp::Serialize(RakNet::BitStream* outBitStream){
outBitStream->Write(type);
outBitStream->Write(value);
outBitStream->Write(timestamp);
};

void AuthPackets::LoadClaimCodes() {
if(!claimCodes.empty()) return;
auto rcstring = Game::config->GetValue("rewardcodes");
Expand All @@ -42,12 +48,26 @@ void AuthPackets::LoadClaimCodes() {
}

void AuthPackets::HandleHandshake(dServer* server, Packet* packet) {
RakNet::BitStream inStream(packet->data, packet->length, false);
uint64_t header = inStream.Read(header);
CINSTREAM_SKIP_HEADER
uint32_t clientVersion = 0;
inStream.Read(clientVersion);
inStream.IgnoreBytes(4);

ServiceId serviceId;
inStream.Read(serviceId);
if (serviceId != ServiceId::Client) LOG("WARNING: Service ID is not a Client!");

uint32_t processID;
inStream.Read(processID);

uint16_t port;
inStream.Read(port);
if (port != packet->systemAddress.port) LOG("WARNING: Port written in packet does not match the port the client is connecting over!");

inStream.IgnoreBytes(33);

LOG_DEBUG("Client Data [Version: %i, Service: %s, Process: %u, Port: %u, Sysaddr Port: %u]", clientVersion, StringifiedEnum::ToString(serviceId).data(), processID, port, packet->systemAddress.port);

LOG("Received client version: %i", clientVersion);
SendHandshake(server, packet->systemAddress, server->GetIP(), server->GetPort(), server->GetServerType());
}

Expand All @@ -60,42 +80,93 @@ void AuthPackets::SendHandshake(dServer* server, const SystemAddress& sysAddr, c
if (!clientNetVersionString.empty()) GeneralUtils::TryParse(clientNetVersionString, clientNetVersion);

bitStream.Write<uint32_t>(clientNetVersion);
bitStream.Write<uint32_t>(0x93);
bitStream.Write<uint32_t>(861228100);

if (serverType == ServerType::Auth) bitStream.Write(uint32_t(1)); //Conn: auth
else bitStream.Write<uint32_t>(4); //Conn: world

bitStream.Write<uint32_t>(0); //Server process ID
bitStream.Write(nextServerPort);
if (serverType == ServerType::Auth) bitStream.Write(ServiceId::Auth);
else if (serverType == ServerType::World) bitStream.Write(ServiceId::World);
else bitStream.Write(ServiceId::General);
bitStream.Write<uint32_t>(774909490);

server->Send(&bitStream, sysAddr, false);
}

void AuthPackets::HandleLoginRequest(dServer* server, Packet* packet) {
std::string username = PacketUtils::ReadString(8, packet, true);
std::string password = PacketUtils::ReadString(0x4A, packet, true);
const char* szUsername = username.c_str();
CINSTREAM_SKIP_HEADER;

std::vector<Stamp> stamps;
stamps.emplace_back(eStamps::PASSPORT_AUTH_START, 0);

LUWString usernameLUString(33);
inStream.Read(usernameLUString);
const auto username = usernameLUString.GetAsString();

LUWString password(41);
inStream.Read(password);

LanguageCodeID locale_id;
inStream.Read(locale_id);
LOG_DEBUG("Locale ID: %s", StringifiedEnum::ToString(locale_id).data());

ClientOS clientOS;
inStream.Read(clientOS);
LOG_DEBUG("Operating System: %s", StringifiedEnum::ToString(clientOS).data());
stamps.emplace_back(eStamps::PASSPORT_AUTH_CLIENT_OS, 0);

LUWString memoryStats(256);
inStream.Read(memoryStats);
LOG_DEBUG("Memory Stats [%s]", memoryStats.GetAsString().c_str());

LUWString videoCard(128);
inStream.Read(videoCard);
LOG_DEBUG("VideoCard Info: [%s]", videoCard.GetAsString().c_str());

// Processor/CPU info
uint32_t numOfProcessors;
inStream.Read(numOfProcessors);
uint32_t processorType;
inStream.Read(processorType);
uint16_t processorLevel;
inStream.Read(processorLevel);
uint16_t processorRevision;
inStream.Read(processorRevision);
LOG_DEBUG("CPU Info: [#Processors: %i, Processor Type: %i, Processor Level: %i, Processor Revision: %i]", numOfProcessors, processorType, processorLevel, processorRevision);

// OS Info
uint32_t osVersionInfoSize;
inStream.Read(osVersionInfoSize);
uint32_t majorVersion;
inStream.Read(majorVersion);
uint32_t minorVersion;
inStream.Read(minorVersion);
uint32_t buildNumber;
inStream.Read(buildNumber);
uint32_t platformID;
inStream.Read(platformID);
LOG_DEBUG("OS Info: [Size: %i, Major: %i, Minor %i, Buid#: %i, platformID: %i]", osVersionInfoSize, majorVersion, minorVersion, buildNumber, platformID);

// Fetch account details
auto accountInfo = Database::Get()->GetAccountInfo(username);

if (!accountInfo) {
LOG("No user by name %s found!", username.c_str());
AuthPackets::SendLoginResponse(server, packet->systemAddress, eLoginResponse::INVALID_USER, "", "", 2001, username);
stamps.emplace_back(eStamps::PASSPORT_AUTH_ERROR, 1);
AuthPackets::SendLoginResponse(server, packet->systemAddress, eLoginResponse::INVALID_USER, "", "", 2001, username, stamps);
return;
}

//If we aren't running in live mode, then only GMs are allowed to enter:
const auto& closedToNonDevs = Game::config->GetValue("closed_to_non_devs");
if (closedToNonDevs.size() > 0 && bool(std::stoi(closedToNonDevs)) && accountInfo->maxGmLevel == eGameMasterLevel::CIVILIAN) {
AuthPackets::SendLoginResponse(server, packet->systemAddress, eLoginResponse::PERMISSIONS_NOT_HIGH_ENOUGH, "The server is currently only open to developers.", "", 2001, username);
stamps.emplace_back(eStamps::GM_REQUIRED, 1);
AuthPackets::SendLoginResponse(server, packet->systemAddress, 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) {
AuthPackets::SendLoginResponse(server, packet->systemAddress, eLoginResponse::PERMISSIONS_NOT_HIGH_ENOUGH, "Your account doesn't have a play key associated with it!", "", 2001, username);
stamps.emplace_back(eStamps::PASSPORT_AUTH_ERROR, 1);
AuthPackets::SendLoginResponse(server, packet->systemAddress, 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;
}
Expand All @@ -104,40 +175,50 @@ void AuthPackets::HandleLoginRequest(dServer* server, Packet* packet) {
auto playKeyStatus = Database::Get()->IsPlaykeyActive(accountInfo->playKeyId);

if (!playKeyStatus) {
AuthPackets::SendLoginResponse(server, packet->systemAddress, eLoginResponse::PERMISSIONS_NOT_HIGH_ENOUGH, "Your account doesn't have a valid play key associated with it!", "", 2001, username);
stamps.emplace_back(eStamps::PASSPORT_AUTH_ERROR, 1);
AuthPackets::SendLoginResponse(server, packet->systemAddress, eLoginResponse::PERMISSIONS_NOT_HIGH_ENOUGH, "Your account doesn't have a valid play key associated with it!", "", 2001, username, stamps);
return;
}

if (!playKeyStatus.value()) {
AuthPackets::SendLoginResponse(server, packet->systemAddress, eLoginResponse::PERMISSIONS_NOT_HIGH_ENOUGH, "Your play key has been disabled.", "", 2001, username);
stamps.emplace_back(eStamps::PASSPORT_AUTH_ERROR, 1);
AuthPackets::SendLoginResponse(server, packet->systemAddress, 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.emplace_back(eStamps::PASSPORT_AUTH_BYPASS, 1);
}

if (accountInfo->banned) {
AuthPackets::SendLoginResponse(server, packet->systemAddress, eLoginResponse::BANNED, "", "", 2001, username); return;
stamps.emplace_back(eStamps::PASSPORT_AUTH_ERROR, 1);
AuthPackets::SendLoginResponse(server, packet->systemAddress, eLoginResponse::BANNED, "", "", 2001, username, stamps);
return;
}

if (accountInfo->locked) {
AuthPackets::SendLoginResponse(server, packet->systemAddress, eLoginResponse::ACCOUNT_LOCKED, "", "", 2001, username); return;
stamps.emplace_back(eStamps::PASSPORT_AUTH_ERROR, 1);
AuthPackets::SendLoginResponse(server, packet->systemAddress, eLoginResponse::ACCOUNT_LOCKED, "", "", 2001, username, stamps);
return;
}

bool loginSuccess = ::bcrypt_checkpw(password.c_str(), accountInfo->bcryptPassword.c_str()) == 0;
bool loginSuccess = ::bcrypt_checkpw(password.GetAsString().c_str(), accountInfo->bcryptPassword.c_str()) == 0;

if (!loginSuccess) {
AuthPackets::SendLoginResponse(server, packet->systemAddress, eLoginResponse::WRONG_PASS, "", "", 2001, username);
stamps.emplace_back(eStamps::PASSPORT_AUTH_ERROR, 1);
AuthPackets::SendLoginResponse(server, packet->systemAddress, eLoginResponse::WRONG_PASS, "", "", 2001, username, stamps);
LOG("Wrong password used");
} else {
SystemAddress system = packet->systemAddress; //Copy the sysAddr before the Packet gets destroyed from main

if (!server->GetIsConnectedToMaster()) {
AuthPackets::SendLoginResponse(server, system, eLoginResponse::GENERAL_FAILED, "", "", 0, username);
stamps.emplace_back(eStamps::PASSPORT_AUTH_WORLD_DISCONNECT, 1);
AuthPackets::SendLoginResponse(server, system, eLoginResponse::GENERAL_FAILED, "", "", 0, username, stamps);
return;
}

ZoneInstanceManager::Instance()->RequestZoneTransfer(server, 0, 0, false, [system, server, username](bool mythranShift, uint32_t zoneID, uint32_t zoneInstance, uint32_t zoneClone, std::string zoneIP, uint16_t zonePort) {
AuthPackets::SendLoginResponse(server, system, eLoginResponse::SUCCESS, "", zoneIP, zonePort, username);
stamps.emplace_back(eStamps::PASSPORT_AUTH_WORLD_SESSION_CONFIRM_TO_AUTH, 1);
ZoneInstanceManager::Instance()->RequestZoneTransfer(server, 0, 0, false, [system, server, username, stamps](bool mythranShift, uint32_t zoneID, uint32_t zoneInstance, uint32_t zoneClone, std::string zoneIP, uint16_t zonePort) mutable {
AuthPackets::SendLoginResponse(server, system, eLoginResponse::SUCCESS, "", zoneIP, zonePort, username, stamps);
});
}

Expand All @@ -146,21 +227,22 @@ void AuthPackets::HandleLoginRequest(dServer* server, Packet* packet) {
}
}

void AuthPackets::SendLoginResponse(dServer* server, const SystemAddress& sysAddr, eLoginResponse responseCode, const std::string& errorMsg, const std::string& wServerIP, uint16_t wServerPort, std::string username) {
RakNet::BitStream packet;
BitStreamUtils::WriteHeader(packet, eConnectionType::CLIENT, eClientMessageType::LOGIN_RESPONSE);
void AuthPackets::SendLoginResponse(dServer* server, const SystemAddress& sysAddr, eLoginResponse responseCode, const std::string& errorMsg, const std::string& wServerIP, uint16_t wServerPort, std::string username, std::vector<Stamp>& stamps) {
stamps.emplace_back(eStamps::PASSPORT_AUTH_IM_LOGIN_START, 1);
RakNet::BitStream loginResponse;
BitStreamUtils::WriteHeader(loginResponse, eConnectionType::CLIENT, eClientMessageType::LOGIN_RESPONSE);

packet.Write<uint8_t>(GeneralUtils::CastUnderlyingType(responseCode));
loginResponse.Write<uint8_t>(GeneralUtils::CastUnderlyingType(responseCode));

// Event Gating
packet.Write(LUString(Game::config->GetValue("event_1")));
packet.Write(LUString(Game::config->GetValue("event_2")));
packet.Write(LUString(Game::config->GetValue("event_3")));
packet.Write(LUString(Game::config->GetValue("event_4")));
packet.Write(LUString(Game::config->GetValue("event_5")));
packet.Write(LUString(Game::config->GetValue("event_6")));
packet.Write(LUString(Game::config->GetValue("event_7")));
packet.Write(LUString(Game::config->GetValue("event_8")));
loginResponse.Write(LUString(Game::config->GetValue("event_1")));
loginResponse.Write(LUString(Game::config->GetValue("event_2")));
loginResponse.Write(LUString(Game::config->GetValue("event_3")));
loginResponse.Write(LUString(Game::config->GetValue("event_4")));
loginResponse.Write(LUString(Game::config->GetValue("event_5")));
loginResponse.Write(LUString(Game::config->GetValue("event_6")));
loginResponse.Write(LUString(Game::config->GetValue("event_7")));
loginResponse.Write(LUString(Game::config->GetValue("event_8")));

uint16_t version_major = 1;
uint16_t version_current = 10;
Expand All @@ -169,53 +251,52 @@ void AuthPackets::SendLoginResponse(dServer* server, const SystemAddress& sysAdd
GeneralUtils::TryParse<uint16_t>(Game::config->GetValue("version_current"), version_current);
GeneralUtils::TryParse<uint16_t>(Game::config->GetValue("version_minor"), version_minor);

packet.Write(version_major);
packet.Write(version_current);
packet.Write(version_minor);
loginResponse.Write(version_major);
loginResponse.Write(version_current);
loginResponse.Write(version_minor);

// Writes the user key
uint32_t sessionKey = GeneralUtils::GenerateRandomNumber<uint32_t>();
std::string userHash = std::to_string(sessionKey);
userHash = md5(userHash);
packet.Write(LUWString(userHash));
loginResponse.Write(LUWString(userHash));

// Write the Character and Chat IPs
packet.Write(LUString(wServerIP));
packet.Write(LUString(""));
// World Server IP
loginResponse.Write(LUString(wServerIP));
// Chat Server IP (unused)
loginResponse.Write(LUString(""));

// Write the Character and Chat Ports
packet.Write<uint16_t>(wServerPort);
packet.Write<uint16_t>(0);
// World Server Redirect port
loginResponse.Write(wServerPort);
// Char Server Redirect port (unused)
loginResponse.Write(static_cast<uint16_t>(0));

// CDN Key
packet.Write(LUString(""));
loginResponse.Write(LUString(""));

// CDN Ticket
packet.Write(LUString("00000000-0000-0000-0000-000000000000", 37));
loginResponse.Write(LUString("00000000-0000-0000-0000-000000000000", 37));

packet.Write<uint32_t>(0); // Language
// Language
loginResponse.Write(Language::en_US);

// Write the localization
packet.Write(LUString("US", 3));
loginResponse.Write(LUString("US", 3));

packet.Write<uint8_t>(false); // Just upgraded from F2P
packet.Write<uint8_t>(false); // User is F2P
packet.Write<uint64_t>(0); // Time Remaining in F2P
loginResponse.Write<uint8_t>(false); // Just upgraded from F2P
loginResponse.Write<uint8_t>(false); // User is F2P
loginResponse.Write<uint64_t>(0); // Time Remaining in F2P

// Write custom error message
packet.Write<uint16_t>(errorMsg.length());
packet.Write(LUWString(errorMsg, static_cast<uint32_t>(errorMsg.length())));

// Here write auth logs
packet.Write<uint32_t>(20);
for (uint32_t i = 0; i < 20; ++i) {
packet.Write<uint32_t>(8);
packet.Write<uint32_t>(44);
packet.Write<uint32_t>(14000);
packet.Write<uint32_t>(0);
}
loginResponse.Write<uint16_t>(errorMsg.length());
loginResponse.Write(LUWString(errorMsg, static_cast<uint32_t>(errorMsg.length())));

stamps.emplace_back(eStamps::PASSPORT_AUTH_WORLD_COMMUNICATION_FINISH, 1);

loginResponse.Write<uint32_t>((sizeof(Stamp) * stamps.size()) + sizeof(uint32_t));
for (auto& stamp : stamps) stamp.Serialize(&loginResponse);

server->Send(&packet, sysAddr, false);
server->Send(&loginResponse, sysAddr, false);

//Inform the master server that we've created a session for this user:
if (responseCode == eLoginResponse::SUCCESS) {
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