mirror of
https://github.com/Detanup01/gbe_fork.git
synced 2024-12-31 04:44:16 +08:00
327 lines
11 KiB
C++
327 lines
11 KiB
C++
#include "auth.h"
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static inline int generate_random_int() {
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int a;
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randombytes((char *)&a, sizeof(a));
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return a;
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}
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static uint32 generate_steam_ticket_id() {
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/* not random starts with 2? */
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static uint32 a = 1;
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++a;
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// this must never return 0, it is reserved for "k_HAuthTicketInvalid" when the auth APIs fail
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if (a == 0) ++a;
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return a;
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}
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static uint32_t get_ticket_count() {
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static uint32_t a = 0;
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++a;
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// this must never return 0, on overflow just go back to 1 again
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if (a == 0) a = 1;
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return a;
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}
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static void steam_auth_manager_ticket_callback(void *object, Common_Message *msg)
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{
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PRINT_DEBUG("steam_auth_manager_ticket_callback\n");
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Auth_Manager *auth_manager = (Auth_Manager *)object;
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auth_manager->Callback(msg);
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}
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Auth_Manager::Auth_Manager(class Settings *settings, class Networking *network, class SteamCallBacks *callbacks) {
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this->network = network;
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this->settings = settings;
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this->callbacks = callbacks;
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this->network->setCallback(CALLBACK_ID_AUTH_TICKET, settings->get_local_steam_id(), &steam_auth_manager_ticket_callback, this);
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this->network->setCallback(CALLBACK_ID_USER_STATUS, settings->get_local_steam_id(), &steam_auth_manager_ticket_callback, this);
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}
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#define STEAM_TICKET_PROCESS_TIME 0.03
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void Auth_Manager::launch_callback(CSteamID id, EAuthSessionResponse resp, double delay)
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{
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ValidateAuthTicketResponse_t data;
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data.m_SteamID = id;
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data.m_eAuthSessionResponse = resp;
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data.m_OwnerSteamID = id;
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callbacks->addCBResult(data.k_iCallback, &data, sizeof(data), delay);
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}
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void Auth_Manager::launch_callback_gs(CSteamID id, bool approved)
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{
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if (approved) {
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GSClientApprove_t data;
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data.m_SteamID = data.m_OwnerSteamID = id;
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callbacks->addCBResult(data.k_iCallback, &data, sizeof(data));
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} else {
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GSClientDeny_t data;
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data.m_SteamID = id;
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data.m_eDenyReason = k_EDenyNotLoggedOn; //TODO: other reasons?
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callbacks->addCBResult(data.k_iCallback, &data, sizeof(data));
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}
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}
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#define STEAM_ID_OFFSET_TICKET (4 + 8)
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#define STEAM_TICKET_MIN_SIZE (4 + 8 + 8)
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#define STEAM_TICKET_MIN_SIZE_NEW 170
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Auth_Data Auth_Manager::getTicketData( void *pTicket, int cbMaxTicket, uint32 *pcbTicket )
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{
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#define IP4_AS_DWORD_LITTLE_ENDIAN(a,b,c,d) (((uint32_t)d)<<24 | ((uint32_t)c)<<16 | ((uint32_t)b)<<8 | (uint32_t)a)
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Auth_Data ticket_data;
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CSteamID steam_id = settings->get_local_steam_id();
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if (settings->enable_new_app_ticket)
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{
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ticket_data.id = steam_id;
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ticket_data.number = generate_steam_ticket_id();
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ticket_data.Ticket.Version = 4;
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ticket_data.Ticket.id = steam_id;
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ticket_data.Ticket.AppId = settings->get_local_game_id().AppID();
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ticket_data.Ticket.ExternalIP = IP4_AS_DWORD_LITTLE_ENDIAN(127, 0, 0, 1); //TODO
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ticket_data.Ticket.InternalIP = IP4_AS_DWORD_LITTLE_ENDIAN(127, 0, 0, 1);
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ticket_data.Ticket.AlwaysZero = 0;
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const auto curTime = std::chrono::system_clock::now();
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const auto GenDate = std::chrono::duration_cast<std::chrono::seconds>(curTime.time_since_epoch());
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ticket_data.Ticket.TicketGeneratedDate = (uint32_t)GenDate.count();
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uint32_t expTime = (uint32_t)(GenDate + std::chrono::hours(24)).count();
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ticket_data.Ticket.TicketGeneratedExpireDate = expTime;
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ticket_data.Ticket.Licenses.resize(0);
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ticket_data.Ticket.Licenses.push_back(0); //TODO
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unsigned int dlcCount = settings->DLCCount();
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ticket_data.Ticket.DLCs.resize(0); //currently set to 0
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for (int i = 0; i < dlcCount; ++i)
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{
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DLC dlc;
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AppId_t appid;
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bool available;
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std::string name;
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if (!settings->getDLC(i, appid, available, name)) break;
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dlc.AppId = (uint32_t)appid;
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dlc.Licenses.resize(0); //TODO
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ticket_data.Ticket.DLCs.push_back(dlc);
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}
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ticket_data.HasGC = false;
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if (settings->use_gc_token)
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{
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ticket_data.HasGC = true;
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ticket_data.GC.GCToken = generate_random_int();
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ticket_data.GC.id = steam_id;
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ticket_data.GC.ticketGenDate = (uint32_t)GenDate.count();
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ticket_data.GC.ExternalIP = IP4_AS_DWORD_LITTLE_ENDIAN(127, 0, 0, 1);
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ticket_data.GC.InternalIP = IP4_AS_DWORD_LITTLE_ENDIAN(127, 0, 0, 1);
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ticket_data.GC.TimeSinceStartup = (uint32_t)std::chrono::duration_cast<std::chrono::seconds>(curTime - startup_time).count();
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ticket_data.GC.TicketGeneratedCount = get_ticket_count();
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}
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std::vector<uint8_t> ser = ticket_data.Serialize();
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*pcbTicket = ser.size();
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memcpy(pTicket, ser.data(), ser.size());
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}
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else
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{
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memset(pTicket, 123, cbMaxTicket);
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((char *)pTicket)[0] = 0x14;
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((char *)pTicket)[1] = 0;
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((char *)pTicket)[2] = 0;
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((char *)pTicket)[3] = 0;
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uint64 steam_id_buff = steam_id.ConvertToUint64();
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memcpy((char *)pTicket + STEAM_ID_OFFSET_TICKET, &steam_id_buff, sizeof(steam_id_buff));
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*pcbTicket = cbMaxTicket;
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ticket_data.id = steam_id;
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ticket_data.number = generate_steam_ticket_id();
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uint32 ttt = ticket_data.number;
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memcpy(((char *)pTicket) + sizeof(uint64), &ttt, sizeof(ttt));
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}
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#undef IP4_AS_DWORD_LITTLE_ENDIAN
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return ticket_data;
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}
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//Conan Exiles doesn't work with 512 or 128, 256 seems to be the good size
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//Steam returns 234
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#define STEAM_AUTH_TICKET_SIZE 256 //234
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uint32 Auth_Manager::getTicket( void *pTicket, int cbMaxTicket, uint32 *pcbTicket )
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{
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if (settings->enable_new_app_ticket)
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{
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if (cbMaxTicket < STEAM_TICKET_MIN_SIZE_NEW) return 0;
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}
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else
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{
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if (cbMaxTicket < STEAM_TICKET_MIN_SIZE) return 0;
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if (cbMaxTicket > STEAM_AUTH_TICKET_SIZE) cbMaxTicket = STEAM_AUTH_TICKET_SIZE;
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}
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Auth_Data ticket_data = getTicketData(pTicket, cbMaxTicket, pcbTicket );
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uint32 ttt = ticket_data.number;
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GetAuthSessionTicketResponse_t data;
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data.m_hAuthTicket = ttt;
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data.m_eResult = k_EResultOK;
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callbacks->addCBResult(data.k_iCallback, &data, sizeof(data), STEAM_TICKET_PROCESS_TIME);
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outbound.push_back(ticket_data);
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return ttt;
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}
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uint32 Auth_Manager::getWebApiTicket( const char* pchIdentity )
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{
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// https://docs.unity.com/ugs/en-us/manual/authentication/manual/platform-signin-steam
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GetTicketForWebApiResponse_t data{};
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uint32 cbTicket = 0;
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Auth_Data ticket_data = getTicketData(data.m_rgubTicket, STEAM_AUTH_TICKET_SIZE, &cbTicket);
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data.m_cubTicket = (int)cbTicket;
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uint32 ttt = ticket_data.number;
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data.m_hAuthTicket = ttt;
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data.m_eResult = k_EResultOK;
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callbacks->addCBResult(data.k_iCallback, &data, sizeof(data), STEAM_TICKET_PROCESS_TIME);
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outbound.push_back(ticket_data);
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return ttt;
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}
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CSteamID Auth_Manager::fakeUser()
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{
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Auth_Data data = {};
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data.id = generate_steam_anon_user();
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inbound.push_back(data);
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return data.id;
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}
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void Auth_Manager::cancelTicket(uint32 number)
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{
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auto ticket = std::find_if(outbound.begin(), outbound.end(), [&number](Auth_Data const& item) { return item.number == number; });
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if (outbound.end() == ticket)
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return;
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Auth_Ticket *auth_ticket = new Auth_Ticket();
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auth_ticket->set_number(number);
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auth_ticket->set_type(Auth_Ticket::CANCEL);
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Common_Message msg;
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msg.set_source_id(settings->get_local_steam_id().ConvertToUint64());
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msg.set_allocated_auth_ticket(auth_ticket);
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network->sendToAll(&msg, true);
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outbound.erase(ticket);
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}
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bool Auth_Manager::SendUserConnectAndAuthenticate( uint32 unIPClient, const void *pvAuthBlob, uint32 cubAuthBlobSize, CSteamID *pSteamIDUser )
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{
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if (cubAuthBlobSize < STEAM_TICKET_MIN_SIZE) return false;
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Auth_Data data;
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uint64 id;
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memcpy(&id, (char *)pvAuthBlob + STEAM_ID_OFFSET_TICKET, sizeof(id));
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uint32 number;
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memcpy(&number, ((char *)pvAuthBlob) + sizeof(uint64), sizeof(number));
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data.id = CSteamID(id);
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data.number = number;
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if (pSteamIDUser) *pSteamIDUser = data.id;
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for (auto & t : inbound) {
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if (t.id == data.id) {
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//Should this return false?
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launch_callback_gs(id, true);
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return true;
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}
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}
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inbound.push_back(data);
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launch_callback_gs(id, true);
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return true;
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}
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EBeginAuthSessionResult Auth_Manager::beginAuth(const void *pAuthTicket, int cbAuthTicket, CSteamID steamID )
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{
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if (cbAuthTicket < STEAM_TICKET_MIN_SIZE) return k_EBeginAuthSessionResultInvalidTicket;
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Auth_Data data;
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uint64 id;
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memcpy(&id, (char *)pAuthTicket + STEAM_ID_OFFSET_TICKET, sizeof(id));
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uint32 number;
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memcpy(&number, ((char *)pAuthTicket) + sizeof(uint64), sizeof(number));
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data.id = CSteamID(id);
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data.number = number;
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data.created = std::chrono::high_resolution_clock::now();
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for (auto & t : inbound) {
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if (t.id == data.id && !check_timedout(t.created, STEAM_TICKET_PROCESS_TIME)) {
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return k_EBeginAuthSessionResultDuplicateRequest;
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}
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}
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inbound.push_back(data);
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launch_callback(steamID, k_EAuthSessionResponseOK, STEAM_TICKET_PROCESS_TIME);
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return k_EBeginAuthSessionResultOK;
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}
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uint32 Auth_Manager::countInboundAuth()
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{
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return inbound.size();
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}
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bool Auth_Manager::endAuth(CSteamID id)
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{
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bool erased = false;
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auto t = std::begin(inbound);
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while (t != std::end(inbound)) {
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if (t->id == id) {
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erased = true;
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t = inbound.erase(t);
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} else {
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++t;
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}
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}
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return erased;
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}
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void Auth_Manager::Callback(Common_Message *msg)
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{
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if (msg->has_low_level()) {
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if (msg->low_level().type() == Low_Level::CONNECT) {
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}
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if (msg->low_level().type() == Low_Level::DISCONNECT) {
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PRINT_DEBUG("TICKET DISCONNECT\n");
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auto t = std::begin(inbound);
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while (t != std::end(inbound)) {
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if (t->id.ConvertToUint64() == msg->source_id()) {
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launch_callback(t->id, k_EAuthSessionResponseUserNotConnectedToSteam);
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t = inbound.erase(t);
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} else {
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++t;
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}
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}
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}
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}
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if (msg->has_auth_ticket()) {
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if (msg->auth_ticket().type() == Auth_Ticket::CANCEL) {
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PRINT_DEBUG("TICKET CANCEL %llu\n", msg->source_id());
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uint32 number = msg->auth_ticket().number();
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auto t = std::begin(inbound);
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while (t != std::end(inbound)) {
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if (t->id.ConvertToUint64() == msg->source_id() && t->number == number) {
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PRINT_DEBUG("TICKET CANCELED\n");
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launch_callback(t->id, k_EAuthSessionResponseAuthTicketCanceled);
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t = inbound.erase(t);
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} else {
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++t;
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}
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}
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}
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}
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} |