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gbe_fork/dll/auth.h

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#ifndef AUTH_INCLUDE
#define AUTH_INCLUDE
#include "base.h"
//#include "common_includes.h"
#include "../sha/sha1.hpp"
#include <ctime>
#include <sstream>
#include <string>
#include <iostream>
// the data type is important, we depend on sizeof() for each one of them
constexpr uint32_t STEAM_APPTICKET_SIGLEN = 128;
constexpr uint32_t STEAM_APPTICKET_GCLen = 20;
constexpr uint32_t STEAM_APPTICKET_SESSIONLEN = 24;
struct DLC {
uint32_t AppId;
std::vector<uint32_t> Licenses;
std::vector<uint8_t> Serialize()
{
PRINT_DEBUG("AUTH::DLC::SER AppId = %u, Licenses count = %zu\n", AppId, Licenses.size());
// we need this variable because we depend on the sizeof, must be 2 bytes
const uint16_t dlcs_licenses_count = (uint16_t)Licenses.size();
const size_t dlcs_licenses_total_size =
Licenses.size() * sizeof(Licenses[0]); // count * element size
const size_t total_size =
sizeof(AppId) +
sizeof(dlcs_licenses_count) +
dlcs_licenses_total_size;
std::vector<uint8_t> buffer;
buffer.resize(total_size);
uint8_t* pBuffer = buffer.data();
#define SER_VAR(v) \
*reinterpret_cast<std::remove_const<decltype(v)>::type *>(pBuffer) = v; \
pBuffer += sizeof(v)
SER_VAR(AppId);
SER_VAR(dlcs_licenses_count);
for(uint32_t dlc_license : Licenses)
{
SER_VAR(dlc_license);
}
#undef SER_VAR
PRINT_DEBUG("AUTH::DLC::SER final size = %zu\n", buffer.size());
return buffer;
}
};
struct AppTicketGC {
uint64_t GCToken;
CSteamID id;
uint32_t ticketGenDate; //epoch
uint32_t ExternalIP;
uint32_t InternalIP;
uint32_t TimeSinceStartup;
uint32_t TicketGeneratedCount;
private:
uint32_t one = 1;
uint32_t two = 2;
public:
std::vector<uint8_t> Serialize()
{
const uint64_t steam_id = id.ConvertToUint64();
// must be 52
constexpr size_t total_size =
sizeof(STEAM_APPTICKET_GCLen) +
sizeof(GCToken) +
sizeof(steam_id) +
sizeof(ticketGenDate) +
sizeof(STEAM_APPTICKET_SESSIONLEN) +
sizeof(one) +
sizeof(two) +
sizeof(ExternalIP) +
sizeof(InternalIP) +
sizeof(TimeSinceStartup) +
sizeof(TicketGeneratedCount);
// check the size at compile time, we must ensure the correct size
#ifndef EMU_RELEASE_BUILD
static_assert(
total_size == 52,
"AUTH::AppTicketGC::SER calculated size of serialized data != 52 bytes, your compiler has some incorrect sizes"
);
#endif
PRINT_DEBUG(
"AUTH::AppTicketGC::SER Token:\n"
" GCToken: %I64u\n"
" user steam_id: %I64u\n"
" ticketGenDate: %u\n"
" ExternalIP: 0x%08X, InternalIP: 0x%08X\n"
" TimeSinceStartup: %u, TicketGeneratedCount: %u\n"
" SER size = %zu\n",
GCToken,
steam_id,
ticketGenDate,
ExternalIP, InternalIP,
TimeSinceStartup, TicketGeneratedCount,
total_size
);
std::vector<uint8_t> buffer;
buffer.resize(total_size);
uint8_t* pBuffer = buffer.data();
#define SER_VAR(v) \
*reinterpret_cast<std::remove_const<decltype(v)>::type *>(pBuffer) = v; \
pBuffer += sizeof(v)
SER_VAR(STEAM_APPTICKET_GCLen);
SER_VAR(GCToken);
SER_VAR(steam_id);
SER_VAR(ticketGenDate);
SER_VAR(STEAM_APPTICKET_SESSIONLEN);
SER_VAR(one);
SER_VAR(two);
SER_VAR(ExternalIP);
SER_VAR(InternalIP);
SER_VAR(TimeSinceStartup);
SER_VAR(TicketGeneratedCount);
#undef SER_VAR
#ifndef EMU_RELEASE_BUILD
// we nedd a live object until the printf does its job, hence this special handling
auto str = uint8_vector_to_hex_string(buffer);
PRINT_DEBUG("AUTH::AppTicketGC::SER final data [%zu bytes]: %s\n", buffer.size(), str.c_str());
#endif
return buffer;
}
};
struct AppTicket {
uint32_t Version;
CSteamID id;
uint32_t AppId;
uint32_t ExternalIP;
uint32_t InternalIP;
uint32_t AlwaysZero = 0; //OwnershipFlags?
uint32_t TicketGeneratedDate;
uint32_t TicketGeneratedExpireDate;
std::vector<uint32_t> Licenses;
std::vector<DLC> DLCs;
std::vector<uint8_t> Serialize()
{
const uint64_t steam_id = id.ConvertToUint64();
PRINT_DEBUG(
"AUTH::AppTicket::SER:\n"
" Version: %u\n"
" user steam_id: %I64u\n"
" AppId: %u\n"
" ExternalIP: 0x%08X, InternalIP: 0x%08X\n"
" TicketGeneratedDate: %u, TicketGeneratedExpireDate: %u\n"
" Licenses count: %zu, DLCs count: %zu\n",
Version,
steam_id,
AppId,
ExternalIP, InternalIP,
TicketGeneratedDate, TicketGeneratedExpireDate,
Licenses.size(), DLCs.size()
);
// we need this variable because we depend on the sizeof, must be 2 bytes
const uint16_t licenses_count = (uint16_t)Licenses.size();
const size_t licenses_total_size =
Licenses.size() * sizeof(Licenses[0]); // total count * element size
// we need this variable because we depend on the sizeof, must be 2 bytes
const uint16_t dlcs_count = (uint16_t)DLCs.size();
size_t dlcs_total_size = 0;
std::vector<std::vector<uint8_t>> serialized_dlcs;
for (DLC &dlc : DLCs)
{
auto dlc_ser = dlc.Serialize();
dlcs_total_size += dlc_ser.size();
serialized_dlcs.push_back(dlc_ser);
}
//padding
constexpr uint16_t padding = (uint16_t)0;
// must be 42
constexpr size_t static_fields_size =
sizeof(Version) +
sizeof(steam_id) +
sizeof(AppId) +
sizeof(ExternalIP) +
sizeof(InternalIP) +
sizeof(AlwaysZero) +
sizeof(TicketGeneratedDate) +
sizeof(TicketGeneratedExpireDate) +
sizeof(licenses_count) +
sizeof(dlcs_count) +
sizeof(padding);
// check the size at compile time, we must ensure the correct size
#ifndef EMU_RELEASE_BUILD
static_assert(
static_fields_size == 42,
"AUTH::AppTicket::SER calculated size of serialized data != 42 bytes, your compiler has some incorrect sizes"
);
#endif
const size_t total_size =
static_fields_size +
licenses_total_size +
dlcs_total_size;
PRINT_DEBUG("AUTH::AppTicket::SER final size = %zu\n", total_size);
std::vector<uint8_t> buffer;
buffer.resize(total_size);
uint8_t* pBuffer = buffer.data();
#define SER_VAR(v) \
*reinterpret_cast<std::remove_const<decltype(v)>::type *>(pBuffer) = v; \
pBuffer += sizeof(v)
SER_VAR(Version);
SER_VAR(steam_id);
SER_VAR(AppId);
SER_VAR(ExternalIP);
SER_VAR(InternalIP);
SER_VAR(AlwaysZero);
SER_VAR(TicketGeneratedDate);
SER_VAR(TicketGeneratedExpireDate);
#ifndef EMU_RELEASE_BUILD
{
// we nedd a live object until the printf does its job, hence this special handling
auto str = uint8_vector_to_hex_string(buffer);
PRINT_DEBUG("AUTH::AppTicket::SER (before licenses + DLCs): %s\n", str.c_str());
}
#endif
/*
* layout of licenses:
* ------------------------
* 2 bytes: count of licenses
* ------------------------
* [
* ------------------------
* | 4 bytes: license element
* ------------------------
* ]
*/
SER_VAR(licenses_count);
for(uint32_t license : Licenses)
{
SER_VAR(license);
}
/*
* layout of DLCs:
* ------------------------
* | 2 bytes: count of DLCs
* ------------------------
* [
* ------------------------
* | 4 bytes: app id
* ------------------------
* | 2 bytes: DLC licenses count
* ------------------------
* [
* 4 bytes: DLC license element
* ]
* ]
*/
SER_VAR(dlcs_count);
for (std::vector<uint8_t> &dlc_ser : serialized_dlcs)
{
memcpy(pBuffer, dlc_ser.data(), dlc_ser.size());
pBuffer += dlc_ser.size();
}
//padding
SER_VAR(padding);
#undef SER_VAR
#ifndef EMU_RELEASE_BUILD
{
// we nedd a live object until the printf does its job, hence this special handling
auto str = uint8_vector_to_hex_string(buffer);
PRINT_DEBUG("AUTH::AppTicket::SER final data [%zu bytes]: %s\n", buffer.size(), str.c_str());
}
#endif
return buffer;
}
};
struct Auth_Data {
bool HasGC;
AppTicketGC GC;
AppTicket Ticket;
//old data
CSteamID id;
uint64_t number;
std::chrono::high_resolution_clock::time_point created;
std::vector<uint8_t> Serialize()
{
const uint64_t steam_id = id.ConvertToUint64();
PRINT_DEBUG(
"AUTH::Auth_Data::SER:\n"
" HasGC: %u\n"
" user steam_id: %I64u\n"
" number: %llu\n",
(int)HasGC,
steam_id,
number
);
std::vector<uint8_t> tickedData = Ticket.Serialize();
size_t size = tickedData.size() + 4;
std::vector<uint8_t> GCData;
if (HasGC)
{
GCData = GC.Serialize();
size += GCData.size() + 4;
}
PRINT_DEBUG("AUTH::Auth_Data::SER final size = %zu\n", size);
std::vector<uint8_t> buffer;
buffer.resize(size + STEAM_APPTICKET_SIGLEN);
uint8_t* pBuffer = buffer.data();
if (HasGC)
{
memcpy(pBuffer, GCData.data(), GCData.size());
pBuffer+= GCData.size();
*reinterpret_cast<uint32_t*>(pBuffer) = (128+tickedData.size()+4);
pBuffer += 4;
}
*reinterpret_cast<uint32_t*>(pBuffer) = (tickedData.size()+4);
pBuffer += 4;
memcpy(pBuffer, tickedData.data(), tickedData.size());
#ifndef EMU_RELEASE_BUILD
// we nedd a live object until the printf does its job, hence this special handling
auto str = uint8_vector_to_hex_string(buffer);
PRINT_DEBUG("AUTH::Auth_Data::SER final data [%zu bytes]: %s\n", buffer.size(), str.c_str());
#endif
//Todo make a signature
return buffer;
}
};
class Auth_Manager {
class Settings *settings;
class Networking *network;
class SteamCallBacks *callbacks;
void launch_callback(CSteamID id, EAuthSessionResponse resp, double delay=0);
void launch_callback_gs(CSteamID id, bool approved);
std::vector<struct Auth_Data> inbound;
std::vector<struct Auth_Data> outbound;
public:
Auth_Manager(class Settings *settings, class Networking *network, class SteamCallBacks *callbacks);
void Callback(Common_Message *msg);
uint32 getTicket( void *pTicket, int cbMaxTicket, uint32 *pcbTicket );
uint32 getWebApiTicket( const char *pchIdentity );
void cancelTicket(uint32 number);
EBeginAuthSessionResult beginAuth(const void *pAuthTicket, int cbAuthTicket, CSteamID steamID);
bool endAuth(CSteamID id);
uint32 countInboundAuth();
bool SendUserConnectAndAuthenticate( uint32 unIPClient, const void *pvAuthBlob, uint32 cubAuthBlobSize, CSteamID *pSteamIDUser );
CSteamID fakeUser();
Auth_Data getTicketData( void *pTicket, int cbMaxTicket, uint32 *pcbTicket );
};
#endif // AUTH_INCLUDE
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