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fixed potential threading/socket issue

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This commit is contained in:
CPunch 2020-09-27 00:12:26 -05:00
parent b4fb449e69
commit 062302a7aa
2 changed files with 26 additions and 45 deletions
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61
src/CNLoginServer.cpp
View File

@ -46,31 +46,24 @@ void CNLoginServer::handlePacket(CNSocket* sock, CNPacketData* data) {
int errorCode = 0; int errorCode = 0;
// checking regex // checking regex
if (!CNLoginServer::isLoginDataGood(userLogin, userPassword)) if (!CNLoginServer::isLoginDataGood(userLogin, userPassword)) {
{
errorCode = (int)LoginError::LOGIN_ERROR; errorCode = (int)LoginError::LOGIN_ERROR;
} } else {
else
{
std::unique_ptr<Database::Account> findUser = Database::findAccount(userLogin); std::unique_ptr<Database::Account> findUser = Database::findAccount(userLogin);
// if account not found, make new one // if account not found, make new one
if (findUser == nullptr) if (findUser == nullptr) {
{
loginSessions[sock] = CNLoginData(); loginSessions[sock] = CNLoginData();
loginSessions[sock].userID = Database::addAccount(userLogin, userPassword); loginSessions[sock].userID = Database::addAccount(userLogin, userPassword);
loginSessions[sock].slot = 1; loginSessions[sock].slot = 1;
success = true; success = true;
} }
// if user exists, check if password is correct // if user exists, check if password is correct
else if (CNLoginServer::isPasswordCorrect(findUser->Password, userPassword)) else if (CNLoginServer::isPasswordCorrect(findUser->Password, userPassword)) {
{
/*calling this here to timestamp login attempt, /*calling this here to timestamp login attempt,
* in order to make duplicate exit sanity check work*/ * in order to make duplicate exit sanity check work*/
Database::updateSelected(findUser->AccountID, findUser->Selected); Database::updateSelected(findUser->AccountID, findUser->Selected);
// check if account isn't currently in use // check if account isn't currently in use
if (CNLoginServer::isAccountInUse(findUser->AccountID) || if (CNLoginServer::isAccountInUse(findUser->AccountID)) {
PlayerManager::isAccountInUse(findUser->AccountID))
{
errorCode = (int)LoginError::ID_ALREADY_IN_USE; errorCode = (int)LoginError::ID_ALREADY_IN_USE;
} }
// if not, login success // if not, login success
@ -82,15 +75,13 @@ void CNLoginServer::handlePacket(CNSocket* sock, CNPacketData* data) {
success = true; success = true;
} }
} }
else else {
{
errorCode = (int)LoginError::ID_AND_PASSWORD_DO_NOT_MATCH; errorCode = (int)LoginError::ID_AND_PASSWORD_DO_NOT_MATCH;
} }
} }
if (success) if (success) {
{
std::vector<Player> characters = Database::getCharacters(loginSessions[sock].userID); std::vector<Player> characters = Database::getCharacters(loginSessions[sock].userID);
int charCount = characters.size(); int charCount = characters.size();
@ -113,8 +104,7 @@ void CNLoginServer::handlePacket(CNSocket* sock, CNPacketData* data) {
// now send the characters :) // now send the characters :)
std::vector<Player>::iterator it; std::vector<Player>::iterator it;
for (it = characters.begin(); it != characters.end(); it++) for (it = characters.begin(); it != characters.end(); it++) {
{
sP_LS2CL_REP_CHAR_INFO charInfo = sP_LS2CL_REP_CHAR_INFO(); sP_LS2CL_REP_CHAR_INFO charInfo = sP_LS2CL_REP_CHAR_INFO();
charInfo.iSlot = (int8_t)it->slot; charInfo.iSlot = (int8_t)it->slot;
@ -143,9 +133,7 @@ void CNLoginServer::handlePacket(CNSocket* sock, CNPacketData* data) {
sock->sendPacket((void*)&charInfo, P_LS2CL_REP_CHAR_INFO, sizeof(sP_LS2CL_REP_CHAR_INFO)); sock->sendPacket((void*)&charInfo, P_LS2CL_REP_CHAR_INFO, sizeof(sP_LS2CL_REP_CHAR_INFO));
} }
} } else {
// Failure
else {
INITSTRUCT(sP_LS2CL_REP_LOGIN_FAIL, resp); INITSTRUCT(sP_LS2CL_REP_LOGIN_FAIL, resp);
U8toU16(userLogin, resp.szID); U8toU16(userLogin, resp.szID);
resp.iErrorCode = errorCode; resp.iErrorCode = errorCode;
@ -333,13 +321,16 @@ void CNLoginServer::handlePacket(CNSocket* sock, CNPacketData* data) {
case P_CL2LS_REQ_CHANGE_CHAR_NAME: { case P_CL2LS_REQ_CHANGE_CHAR_NAME: {
if (data->size != sizeof(sP_CL2LS_REQ_CHANGE_CHAR_NAME)) if (data->size != sizeof(sP_CL2LS_REQ_CHANGE_CHAR_NAME))
return; return;
sP_CL2LS_REQ_CHANGE_CHAR_NAME* save = (sP_CL2LS_REQ_CHANGE_CHAR_NAME*)data->buf; sP_CL2LS_REQ_CHANGE_CHAR_NAME* save = (sP_CL2LS_REQ_CHANGE_CHAR_NAME*)data->buf;
Database::changeName(save); Database::changeName(save);
INITSTRUCT(sP_LS2CL_REP_CHANGE_CHAR_NAME_SUCC, resp); INITSTRUCT(sP_LS2CL_REP_CHANGE_CHAR_NAME_SUCC, resp);
resp.iPC_UID = save->iPCUID; resp.iPC_UID = save->iPCUID;
memcpy(resp.szFirstName, save->szFirstName, sizeof(char16_t)*9); memcpy(resp.szFirstName, save->szFirstName, sizeof(char16_t)*9);
memcpy(resp.szLastName, save->szLastName, sizeof(char16_t) * 17); memcpy(resp.szLastName, save->szLastName, sizeof(char16_t) * 17);
resp.iSlotNum = save->iSlotNum; resp.iSlotNum = save->iSlotNum;
sock->sendPacket((void*)&resp, P_LS2CL_REP_CHANGE_CHAR_NAME_SUCC, sizeof(sP_LS2CL_REP_CHANGE_CHAR_NAME_SUCC)); sock->sendPacket((void*)&resp, P_LS2CL_REP_CHANGE_CHAR_NAME_SUCC, sizeof(sP_LS2CL_REP_CHANGE_CHAR_NAME_SUCC));
break; break;
} }
@ -349,27 +340,14 @@ void CNLoginServer::handlePacket(CNSocket* sock, CNPacketData* data) {
sP_CL2LS_REQ_PC_EXIT_DUPLICATE* exit = (sP_CL2LS_REQ_PC_EXIT_DUPLICATE*)data->buf; sP_CL2LS_REQ_PC_EXIT_DUPLICATE* exit = (sP_CL2LS_REQ_PC_EXIT_DUPLICATE*)data->buf;
auto account = Database::findAccount(U16toU8(exit->szID)); auto account = Database::findAccount(U16toU8(exit->szID));
// sanity check // sanity check
if (account == nullptr) if (account == nullptr) {
{
std::cout << "[WARN] P_CL2LS_REQ_PC_EXIT_DUPLICATE submitted unknown username: " << exit->szID << std::endl; std::cout << "[WARN] P_CL2LS_REQ_PC_EXIT_DUPLICATE submitted unknown username: " << exit->szID << std::endl;
break; break;
} }
/* sanity check
* client is supposed to send us user password for verification,
* however it never sends it (>_<)
* therefore, we check if the account made a login attempt within last 30s
*/
if (account->LastLogin + 30000 < getTime())
{
std::cout << "[WARN] P_CL2LS_REQ_PC_EXIT_DUPLICATE submitted without a login attempt on: " << exit->szID << std::endl;
break;
}
int accountId = account->AccountID;
if (!exitDuplicate(accountId))
PlayerManager::exitDuplicate(accountId);
exitDuplicate(account->AccountID);
break; break;
} }
default: default:
@ -395,8 +373,7 @@ void CNLoginServer::killConnection(CNSocket* cns) {
#pragma region helperMethods #pragma region helperMethods
bool CNLoginServer::isAccountInUse(int accountId) { bool CNLoginServer::isAccountInUse(int accountId) {
std::map<CNSocket*, CNLoginData>::iterator it; std::map<CNSocket*, CNLoginData>::iterator it;
for (it = CNLoginServer::loginSessions.begin(); it != CNLoginServer::loginSessions.end(); it++) for (it = CNLoginServer::loginSessions.begin(); it != CNLoginServer::loginSessions.end(); it++) {
{
if (it->second.userID == accountId) if (it->second.userID == accountId)
return true; return true;
} }
@ -405,10 +382,8 @@ bool CNLoginServer::isAccountInUse(int accountId) {
bool CNLoginServer::exitDuplicate(int accountId) { bool CNLoginServer::exitDuplicate(int accountId) {
std::map<CNSocket*, CNLoginData>::iterator it; std::map<CNSocket*, CNLoginData>::iterator it;
for (it = CNLoginServer::loginSessions.begin(); it != CNLoginServer::loginSessions.end(); it++) for (it = CNLoginServer::loginSessions.begin(); it != CNLoginServer::loginSessions.end(); it++) {
{ if (it->second.userID == accountId) {
if (it->second.userID == accountId)
{
CNSocket* sock = it->first; CNSocket* sock = it->first;
INITSTRUCT(sP_LS2CL_REP_PC_EXIT_DUPLICATE, resp); INITSTRUCT(sP_LS2CL_REP_PC_EXIT_DUPLICATE, resp);
resp.iErrorCode = 0; resp.iErrorCode = 0;

6
src/PlayerManager.cpp
View File

@ -227,6 +227,12 @@ void PlayerManager::enterPlayer(CNSocket* sock, CNPacketData* data) {
std::cout << "\tPC_UID: " << plr.PCStyle.iPC_UID << std::endl; std::cout << "\tPC_UID: " << plr.PCStyle.iPC_UID << std::endl;
) )
// check if account is already in use
if (isAccountInUse(plr.accountId)) {
// kick the other player
exitDuplicate(plr.accountId);
}
response.iID = plr.iID; response.iID = plr.iID;
response.uiSvrTime = getTime(); response.uiSvrTime = getTime();
response.PCLoadData2CL.iUserLevel = plr.accountLevel; response.PCLoadData2CL.iUserLevel = plr.accountLevel;