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src/engine/server/application/LoginServer/src/shared/ClientConnection.cpp
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// ClientConnection.cpp
// copyright 2000 Verant Interactive
// Author: Justin Randall
//-----------------------------------------------------------------------
#include "FirstLoginServer.h"
#include "ClientConnection.h"
#include "DatabaseConnection.h"
#include "ConfigLoginServer.h"
#include "SessionApiClient.h"
#include "sharedLog/Log.h"
#include "sharedNetworkMessages/ClientLoginMessages.h"
#include "sharedNetworkMessages/DeleteCharacterMessage.h"
#include "sharedNetworkMessages/DeleteCharacterReplyMessage.h"
#include "sharedNetworkMessages/ErrorMessage.h"
#include "sharedNetworkMessages/GenericValueTypeMessage.h"
#include "sharedNetworkMessages/LoginEnumCluster.h"
#include "sharedFoundation/CrcConstexpr.hpp"
#include "webAPI.h"
using namespace StellaBellum;
//-----------------------------------------------------------------------
ClientConnection::ClientConnection(UdpConnectionMT *u, TcpClient *t)
: ServerConnection(u, t), m_clientId(0), m_isValidated(false), m_isSecure(false), m_adminLevel(-1),
m_stationId(0), m_requestedAdminSuid(0), m_gameBits(0), m_subscriptionBits(0),
m_waitingForCharacterLoginDeletion(false), m_waitingForCharacterClusterDeletion(false) {
}
//-----------------------------------------------------------------------
ClientConnection::~ClientConnection() {
}
//-----------------------------------------------------------------------
void ClientConnection::onConnectionClosed() {
// client has disconnected
if (m_stationId) {
DEBUG_REPORT_LOG(true, ("Client %lu disconnected\n", m_stationId));
LOG("LoginClientConnection", ("onConnectionClosed() for stationId (%lu) at IP (%s)", m_stationId, getRemoteAddress().c_str()));
}
LoginServer::getInstance().removeClient(m_clientId);
/* if ((ConfigLoginServer::getValidateStationKey() || ConfigLoginServer::getDoSessionLogin()) && !m_isValidated) {
SessionApiClient *session = LoginServer::getInstance().getSessionApiClient();
if (session) {
session->dropClient(this);
}
}*/
}
//-----------------------------------------------------------------------
void ClientConnection::onConnectionOpened() {
m_clientId = LoginServer::getInstance().addClient(*this);
setOverflowLimit(ConfigLoginServer::getClientOverflowLimit());
LOG("LoginClientConnection", ("onConnectionOpened() for stationId (%lu) at IP (%s)", m_stationId, getRemoteAddress().c_str()));
}
//-----------------------------------------------------------------------
void ClientConnection::onReceive(const Archive::ByteStream &message) {
try {
//Handle all client messages here. Do not forward out.
Archive::ReadIterator ri = message.begin();
GameNetworkMessage m(ri);
ri = message.begin();
const uint32 messageType = m.getType();
//Validation check
if (!getIsValidated() && messageType != constcrc("LoginClientId")) {
//Receiving message from unvalidated client. Pitch it.
DEBUG_WARNING(true, ("Received %s message from unknown, unvalidated client", m.getCmdName().c_str()));
return;
}
switch (messageType) {
case constcrc("LoginClientId") : {
// send the client the server "now" Epoch time so that the
// client has an idea of how much difference there is between
// the client's Epoch time and the server Epoch time
GenericValueTypeMessage <int32> const serverNowEpochTime("ServerNowEpochTime", static_cast<int32>(::time(nullptr)));
send(serverNowEpochTime, true);
LoginClientId id(ri);
// verify version
#if PRODUCTION == 1
if(!ConfigLoginServer::getValidateClientVersion() || id.getVersion() == GameNetworkMessage::NetworkVersionId)
{
validateClient(id.getId(), id.getKey());
}
else
{
LOG("CustomerService", ("Login:LoginServer dropping client (stationId=[%lu], ip=[%s], id=[%s], key=[%s], version=[%s]) because of network version mismatch (required version=[%s])", m_stationId, getRemoteAddress().c_str(), id.getId().c_str(), id.getKey().c_str(), id.getVersion().c_str(), GameNetworkMessage::NetworkVersionId.c_str()));
// disconnect is handled on the client side, as soon as it recieves this message
#if _DEBUG
LoginIncorrectClientId incorrectId(GameNetworkMessage::NetworkVersionId, ApplicationVersion::getInternalVersion());
#else
LoginIncorrectClientId incorrectId("", "");
#endif // _DEBUG
send(incorrectId, true);
}
#else
validateClient(id.getId(), id.getKey());
#endif // PRODUCTION == 1
break;
}
case constcrc("RequestExtendedClusterInfo") : {
LoginServer::getInstance().sendExtendedClusterInfo(*this);
break;
}
case constcrc("DeleteCharacterMessage") : {
DeleteCharacterMessage msg(ri);
std::vector<NetworkId>::const_iterator f = std::find(m_charactersPendingDeletion.begin(), m_charactersPendingDeletion.end(), msg.getCharacterId());
if ((m_waitingForCharacterLoginDeletion || m_waitingForCharacterClusterDeletion) &&
f != m_charactersPendingDeletion.end()) {
DeleteCharacterReplyMessage reply(DeleteCharacterReplyMessage::rc_ALREADY_IN_PROGRESS);
send(reply, true);
} else {
if (LoginServer::getInstance().deleteCharacter(msg.getClusterId(), msg.getCharacterId(), getStationId())) {
m_waitingForCharacterLoginDeletion = true;
m_waitingForCharacterClusterDeletion = true;
m_charactersPendingDeletion.push_back(msg.getCharacterId());
} else {
DeleteCharacterReplyMessage reply(DeleteCharacterReplyMessage::rc_CLUSTER_DOWN);
send(reply, true);
}
}
break;
}
}
} catch (const Archive::ReadException &readException) {
WARNING(true, ("Archive read error (%s) on message from client. Disconnecting client.", readException.what()));
disconnect();
}
}
//-----------------------------------------------------------------------
// originally was used to validate station API credentials, now uses our custom api
void ClientConnection::validateClient(const std::string &id, const std::string &key) {
bool authOK = false;
bool testMode = false;
static const std::string authURL(ConfigLoginServer::getExternalAuthUrl());
static const bool useSimpleAuth = ConfigLoginServer::getUseSimpleAuth();
std::string uname;
std::string sessionID;
StationId user_id;
if (!authURL.empty()) {
// create the object
webAPI api(authURL);
if (useSimpleAuth) {
if (!user_id) {
uname = id;
if (uname.length() > MAX_ACCOUNT_NAME_LENGTH) {
uname.resize(MAX_ACCOUNT_NAME_LENGTH);
}
// TODO: maybe make this a configurable, whether to be case insensitive or not...
// for now we'll assume that simple auth users don't care about case
std::transform(uname.begin(), uname.end(), uname.begin(), ::tolower);
user_id = std::hash < std::string > {}(uname.c_str());
}
std::ostringstream postBuf;
postBuf << "user_name=" << id << "&user_password=" << key << "&stationID=" << user_id << "&ip=" << getRemoteAddress();
std::string postData = postBuf.str();
bool done = api.setData(postData);
if (done) {
done = api.submit(1,1,1);
}
if (done) {
std::string response = api.getString("message");
if (response == "success") {
authOK = true;
} else {
ErrorMessage err("Login Failed", response);
this->send(err, true);
}
} else {
ErrorMessage err("Failed to contact auth provider", "Please contact a server admin");
this->send(err, true);
}
} else {
// add our data
// it's the burden of the auth system to trim and lowercase the username, unlike simpleAuth
api.addJsonData<std::string>("user_name", id);
api.addJsonData<std::string>("user_password", key);
api.addJsonData<std::string>("ip", getRemoteAddress());
if (api.submit()) {
bool status = api.getNullableValue<bool>("status");
uname = api.getString("username");
sessionID = api.getString("session_key");
if (status && !sessionID.empty() && !uname.empty()) {
authOK = true;
if (!ConfigLoginServer::getUseOldSuidGenerator()) {
user_id = static_cast<StationId>(api.getNullableValue<StationId>("user_id"));
} else {
if (uname.length() > MAX_ACCOUNT_NAME_LENGTH) {
uname.resize(MAX_ACCOUNT_NAME_LENGTH);
}
user_id = std::hash < std::string > {}(uname.c_str());
}
} else {
std::string msg(api.getString("message"));
if (msg.empty()) {
msg = "Invalid username or password.";
}
ErrorMessage err("Login Failed", msg);
this->send(err, true);
}
} else {
ErrorMessage err("Login Failed", "Could not connect to remote.");
this->send(err, true);
}
}
} else {
// test mode
authOK = true;
testMode = true;
uname = id;
if (uname.length() > MAX_ACCOUNT_NAME_LENGTH) {
uname.resize(MAX_ACCOUNT_NAME_LENGTH);
}
user_id = std::hash < std::string > {}(uname.c_str());
}
if (authOK) {
m_stationId = user_id;
if (!testMode) {
REPORT_LOG(true, ("Client connected. Username: %s (%i) \n", uname.c_str(), user_id));
LoginServer::getInstance().onValidateClient(m_stationId, uname, this, true, sessionID.c_str(), 0xFFFFFFFF, 0xFFFFFFFF);
} else {
LoginServer::getInstance().onValidateClient(m_stationId, uname, this, true, nullptr, 0xFFFFFFFF, 0xFFFFFFFF);
}
LOG("LoginClientConnection", ("validateClient() for stationId (%i) at IP (%s), id (%s)", user_id, getRemoteAddress().c_str(), uname.c_str()));
}
}
// ----------------------------------------------------------------------------
/**
* The character has been deleted from the login database. 1/2 of what is
* required for character deletion. If the character has already been deleted
* from the cluster, send the reply message to the client.
*/
void ClientConnection::onCharacterDeletedFromLoginDatabase(const NetworkId &characterId) {
m_waitingForCharacterLoginDeletion = false;
if (!m_waitingForCharacterClusterDeletion) {
std::vector<NetworkId>::iterator f = std::find(m_charactersPendingDeletion.begin(), m_charactersPendingDeletion.end(), characterId);
if (f != m_charactersPendingDeletion.end()) {
m_charactersPendingDeletion.erase(f);
}
DeleteCharacterReplyMessage reply(DeleteCharacterReplyMessage::rc_OK);
send(reply, true);
LOG("CustomerService", ("Player:deleted character %s for stationId %u at IP: %s", characterId.getValueString().c_str(), m_stationId, getRemoteAddress().c_str()));
}
}
// ----------------------------------------------------------------------
void ClientConnection::onCharacterDeletedFromCluster(const NetworkId &characterId) {
m_waitingForCharacterClusterDeletion = false;
if (!m_waitingForCharacterLoginDeletion) {
std::vector<NetworkId>::iterator f = std::find(m_charactersPendingDeletion.begin(), m_charactersPendingDeletion.end(), characterId);
if (f != m_charactersPendingDeletion.end()) {
m_charactersPendingDeletion.erase(f);
// TODO: send api request and decrement # characters on this account/subaccount
}
DeleteCharacterReplyMessage reply(DeleteCharacterReplyMessage::rc_OK);
send(reply, true);
LOG("CustomerService", ("Player:deleted character %s for stationId %u at IP: %s", characterId.getValueString().c_str(), m_stationId, getRemoteAddress().c_str()));
}
}
// ----------------------------------------------------------------------
StationId ClientConnection::getRequestedAdminSuid() const {
return m_requestedAdminSuid;
}
// ======================================================================