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src/engine/server/application/LoginServer/src/shared/ClientConnection.cpp
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256 lines
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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"
//-----------------------------------------------------------------------
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)
{
// to avoid having to re-type this stupid var all over the place
// ideally we wouldn't copy this here, but it would be a huge pain
const std::string trimmedId = trim(id);
const std::string trimmedKey = trim(key);
// and to avoid funny business with atoi and casing
// make it a separate var than the one we send the auth server
std::string lcaseId;
lcaseId.resize(trimmedId.size());
std::transform(trimmedId.begin(),trimmedId.end(),lcaseId.begin(),::tolower);
StationId suid = atoi(lcaseId.c_str());
int authOK = 0;
if (suid == 0)
{
std::hash<std::string> h;
suid = h(lcaseId.c_str()); //lint !e603 // Symbol 'h' not initialized (it's a functor)
}
LOG("LoginClientConnection", ("validateClient() for stationId (%lu) at IP (%s), id (%s)", m_stationId, getRemoteAddress().c_str(), lcaseId.c_str()));
std::string authURL(ConfigLoginServer::getExternalAuthUrl());
if (!authURL.empty())
{
std::ostringstream postBuf;
postBuf << "user_name=" << trimmedId << "&user_password=" << trimmedKey << "&stationID=" << suid << "&ip=" << getRemoteAddress();
std::string response = webAPI::simplePost(authURL, std::string(postBuf.str()), "");
if (response == "success")
{
authOK = 1;
}
else
{
ErrorMessage err("Login Failed", response);
this->send(err, true);
}
}
else
{
authOK = 1;
}
if (authOK)
{
LoginServer::getInstance().onValidateClient(suid, lcaseId, this, true, NULL, 0xFFFFFFFF, 0xFFFFFFFF);
}
// else this case will never be reached, noop
}
// ----------------------------------------------------------------------------
/**
* 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;
}
// ======================================================================