mirror of
https://github.com/Detanup01/gbe_fork.git
synced 2024-12-31 04:44:16 +08:00
666 lines
22 KiB
C++
666 lines
22 KiB
C++
// source: https://github.com/Detanup01/stmsrv/blob/main/Steam3Server/Others/AppTickets.cs
|
|
// thanks Detanup01
|
|
|
|
#ifndef AUTH_INCLUDE
|
|
#define AUTH_INCLUDE
|
|
|
|
#include "base.h"
|
|
//#include "common_includes.h"
|
|
#include <ctime>
|
|
#include <sstream>
|
|
#include <string>
|
|
#include <iostream>
|
|
#include "../sha/sha1.hpp"
|
|
#include "../mbedtls/mbedtls/pk.h"
|
|
#include "../mbedtls/mbedtls/x509.h"
|
|
#include "../mbedtls/mbedtls/error.h"
|
|
#include "../mbedtls/mbedtls/sha1.h"
|
|
#include "../mbedtls/mbedtls/entropy.h"
|
|
#include "../mbedtls/mbedtls/ctr_drbg.h"
|
|
|
|
|
|
// 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;
|
|
|
|
// source: https://github.com/Detanup01/stmsrv/blob/main/Cert/AppTicket.key
|
|
// thanks Detanup01
|
|
const static std::string app_ticket_key =
|
|
"-----BEGIN PRIVATE KEY-----\n"
|
|
"MIICdgIBADANBgkqhkiG9w0BAQEFAASCAmAwggJcAgEAAoGBAMITHOY6pfsvaGTI\n"
|
|
"llmilPa1+ev4BsUV0IW3+F/3pQlZ+o57CO1HbepSh2a37cbGUSehOVQ7lREPVXP3\n"
|
|
"UdyF5tU5IMytJef5N7euM5z2IG9IszeOReO87h2AmtlwGqnRj7qd0MeVxSAuUq7P\n"
|
|
"C/Ir1VyOg58+wAKxaPL18upylnGJAgMBAAECgYEAnKQQj0KG9VYuTCoaL/6pfPcj\n"
|
|
"4PEvhaM1yrfSIKMg8YtOT/G+IsWkUZyK7L1HjUhD+FiIjRQKHNrjfdYAnJz20Xom\n"
|
|
"k6iVt7ugihIne1Q3pGYG8TY9P1DPdN7zEnAVY1Bh2PAlqJWrif3v8v1dUGE/dYr2\n"
|
|
"U3M0JhvzO7VL1B/chIECQQDqW9G5azGMA/cL4jOg0pbj9GfxjJZeT7M2rBoIaRWP\n"
|
|
"C3ROndyb+BNahlKk6tbvqillvvMQQiSFGw/PbmCwtLL3AkEA0/79W0q9d3YCXQGW\n"
|
|
"k3hQvR8HEbxLmRaRF2gU4MOa5C0JqwsmxzdK4mKoJCpVAiu1gmFonLjn2hm8i+vK\n"
|
|
"b7hffwJAEiMpCACTxRJJfFH1TOz/YIT5xmfq+0GPzRtkqGH5mSh5x9vPxwJb/RWI\n"
|
|
"L9s85y90JLuyc/+qc+K0Rol0Ujip4QJAGLXVJEn+8ajAt8SSn5fbmV+/fDK9gRef\n"
|
|
"S+Im5NgH+ubBBL3lBD2Orfqf7K8+f2VG3+6oufPXmpV7Y7fVPdZ40wJALDujJXgi\n"
|
|
"XiCBSht1YScYjfmJh2/xZWh8/w+vs5ZTtrnW2FQvfvVDG9c1hrChhpvmA0QxdgWB\n"
|
|
"zSsAno/utcuB9w==\n"
|
|
"-----END PRIVATE KEY-----\n";
|
|
|
|
|
|
static std::vector<uint8_t> sign_auth_data(const std::string &private_key_content, const std::vector<uint8_t> &data, size_t effective_data_len) {
|
|
std::vector<uint8_t> signature{};
|
|
|
|
// Hash the data using SHA-1
|
|
constexpr static int SHA1_DIGEST_LENGTH = 20;
|
|
uint8_t hash[SHA1_DIGEST_LENGTH]{};
|
|
int result = mbedtls_sha1(data.data(), effective_data_len, hash);
|
|
if (result != 0)
|
|
{
|
|
#ifndef EMU_RELEASE_BUILD
|
|
// we nedd a live object until the printf does its job, hence this special handling
|
|
std::string err_msg(256, 0);
|
|
mbedtls_strerror(result, &err_msg[0], err_msg.size());
|
|
PRINT_DEBUG("sign_auth_data failed to hash the data via SHA1: %s\n", err_msg.c_str());
|
|
#endif
|
|
|
|
return signature;
|
|
}
|
|
|
|
mbedtls_entropy_context entropy_ctx; // entropy context for random number generation
|
|
mbedtls_entropy_init(&entropy_ctx);
|
|
|
|
mbedtls_ctr_drbg_context ctr_drbg_ctx; // CTR-DRBG context for deterministic random number generation
|
|
mbedtls_ctr_drbg_init(&ctr_drbg_ctx);
|
|
|
|
// seed the CTR-DRBG context with random numbers
|
|
result = mbedtls_ctr_drbg_seed(&ctr_drbg_ctx, mbedtls_entropy_func, &entropy_ctx, nullptr, 0);
|
|
if (mbedtls_ctr_drbg_seed(&ctr_drbg_ctx, mbedtls_entropy_func, &entropy_ctx, nullptr, 0) != 0)
|
|
{
|
|
mbedtls_ctr_drbg_free(&ctr_drbg_ctx);
|
|
mbedtls_entropy_free(&entropy_ctx);
|
|
|
|
#ifndef EMU_RELEASE_BUILD
|
|
// we nedd a live object until the printf does its job, hence this special handling
|
|
std::string err_msg(256, 0);
|
|
mbedtls_strerror(result, &err_msg[0], err_msg.size());
|
|
PRINT_DEBUG("sign_auth_data failed to seed the CTR-DRBG context: %s\n", err_msg.c_str());
|
|
#endif
|
|
|
|
return signature;
|
|
}
|
|
|
|
mbedtls_pk_context private_key_ctx; // holds the parsed private key
|
|
mbedtls_pk_init(&private_key_ctx);
|
|
|
|
result = mbedtls_pk_parse_key(
|
|
&private_key_ctx, // will hold the parsed private key
|
|
(const unsigned char *)private_key_content.c_str(),
|
|
private_key_content.size() + 1, // we MUST include the null terminator, otherwise this API returns an error!
|
|
nullptr, 0, // no password stuff, private key isn't protected
|
|
mbedtls_ctr_drbg_random, &ctr_drbg_ctx // random number generation function + the CTR-DRBG context it requires as an input
|
|
);
|
|
|
|
if (result != 0)
|
|
{
|
|
mbedtls_pk_free(&private_key_ctx);
|
|
mbedtls_ctr_drbg_free(&ctr_drbg_ctx);
|
|
mbedtls_entropy_free(&entropy_ctx);
|
|
|
|
#ifndef EMU_RELEASE_BUILD
|
|
// we nedd a live object until the printf does its job, hence this special handling
|
|
std::string err_msg(256, 0);
|
|
mbedtls_strerror(result, &err_msg[0], err_msg.size());
|
|
PRINT_DEBUG("sign_auth_data failed to parse private key: %s\n", err_msg.c_str());
|
|
#endif
|
|
|
|
return signature;
|
|
}
|
|
|
|
// private key must be valid RSA key
|
|
if (mbedtls_pk_get_type(&private_key_ctx) != MBEDTLS_PK_RSA || // invalid type
|
|
mbedtls_pk_can_do(&private_key_ctx, MBEDTLS_PK_RSA) == 0) // or initialized but not properly setup (maybe freed?)
|
|
{
|
|
mbedtls_pk_free(&private_key_ctx);
|
|
mbedtls_ctr_drbg_free(&ctr_drbg_ctx);
|
|
mbedtls_entropy_free(&entropy_ctx);
|
|
|
|
PRINT_DEBUG("sign_auth_data parsed key is not a valid RSA private key\n");
|
|
return signature;
|
|
}
|
|
|
|
// get the underlying RSA context from the parsed private key
|
|
mbedtls_rsa_context* rsa_ctx = mbedtls_pk_rsa(private_key_ctx);
|
|
|
|
// resize the output buffer to accomodate the size of the private key
|
|
const size_t private_key_len = mbedtls_pk_get_len(&private_key_ctx);
|
|
if (private_key_len == 0) // TODO must be 128 siglen
|
|
{
|
|
mbedtls_pk_free(&private_key_ctx);
|
|
mbedtls_ctr_drbg_free(&ctr_drbg_ctx);
|
|
mbedtls_entropy_free(&entropy_ctx);
|
|
|
|
PRINT_DEBUG("sign_auth_data failed to get private key (final buffer) length\n");
|
|
return signature;
|
|
}
|
|
|
|
PRINT_DEBUG("sign_auth_data computed private key (final buffer) length = %zu\n", private_key_len);
|
|
signature.resize(private_key_len);
|
|
|
|
// finally sign the computed hash using RSA and PKCS#1 padding
|
|
result = mbedtls_rsa_pkcs1_sign(
|
|
rsa_ctx,
|
|
mbedtls_ctr_drbg_random, &ctr_drbg_ctx,
|
|
MBEDTLS_MD_SHA1, // we used SHA1 to hash the data
|
|
sizeof(hash), hash,
|
|
signature.data() // output
|
|
);
|
|
|
|
mbedtls_pk_free(&private_key_ctx);
|
|
mbedtls_ctr_drbg_free(&ctr_drbg_ctx);
|
|
mbedtls_entropy_free(&entropy_ctx);
|
|
|
|
if (result != 0)
|
|
{
|
|
signature.clear();
|
|
|
|
#ifndef EMU_RELEASE_BUILD
|
|
// we nedd a live object until the printf does its job, hence this special handling
|
|
std::string err_msg(256, 0);
|
|
mbedtls_strerror(result, &err_msg[0], err_msg.size());
|
|
PRINT_DEBUG("sign_auth_data RSA signing failed: %s\n", err_msg.c_str());
|
|
#endif
|
|
}
|
|
|
|
#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(signature);
|
|
PRINT_DEBUG("sign_auth_data final signature [%zu bytes]: %s\n", signature.size(), str.c_str());
|
|
#endif
|
|
|
|
return signature;
|
|
}
|
|
|
|
|
|
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()
|
|
{
|
|
/*
|
|
* layout of Auth_Data with GC:
|
|
* ------------------------
|
|
* X bytes: GC data blob (currently 52 bytes)
|
|
* ------------------------
|
|
* 4 bytes: remaining Auth_Data blob size (4 + Y + Z)
|
|
* ------------------------
|
|
* 4 bytes: size of ticket data layout (not blob!, hence blob + 4)
|
|
* ------------------------
|
|
* Y bytes: ticket data blob
|
|
* ------------------------
|
|
* Z bytes: App Ticket signature
|
|
* ------------------------
|
|
*
|
|
* total layout length = X + 4 + 4 + Y + Z
|
|
*/
|
|
|
|
/*
|
|
* layout of Auth_Data without GC:
|
|
* ------------------------
|
|
* 4 bytes: size of ticket data layout (not blob!, hence blob + 4)
|
|
* ------------------------
|
|
* Y bytes: ticket data blob
|
|
* ------------------------
|
|
* Z bytes: App Ticket signature
|
|
* ------------------------
|
|
*
|
|
* total layout length = 4 + Y + Z
|
|
*/
|
|
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
|
|
);
|
|
|
|
/*
|
|
* layout of ticket data:
|
|
* ------------------------
|
|
* 4 bytes: size of ticket data layout (not blob!, hence blob + 4)
|
|
* ------------------------
|
|
* Y bytes: ticket data blob
|
|
* ------------------------
|
|
*
|
|
* total layout length = 4 + Y
|
|
*/
|
|
std::vector<uint8_t> tickedData = Ticket.Serialize();
|
|
// we need this variable because we depend on the sizeof, must be 4 bytes
|
|
const uint32_t ticket_data_layout_length =
|
|
sizeof(uint32_t) + // size of this uint32_t because it is included!
|
|
(uint32_t)tickedData.size();
|
|
|
|
size_t total_size_without_siglen = ticket_data_layout_length;
|
|
|
|
std::vector<uint8_t> GCData;
|
|
size_t gc_data_layout_length = 0;
|
|
if (HasGC)
|
|
{
|
|
/*
|
|
* layout of GC data:
|
|
* ------------------------
|
|
* X bytes: GC data blob (currently 52 bytes)
|
|
* ------------------------
|
|
* 4 bytes: remaining Auth_Data blob size
|
|
* ------------------------
|
|
*
|
|
* total layout length = X + 4
|
|
*/
|
|
GCData = GC.Serialize();
|
|
gc_data_layout_length +=
|
|
GCData.size() +
|
|
sizeof(uint32_t);
|
|
|
|
total_size_without_siglen += gc_data_layout_length;
|
|
}
|
|
|
|
const size_t final_buffer_size = total_size_without_siglen + STEAM_APPTICKET_SIGLEN;
|
|
PRINT_DEBUG(
|
|
"AUTH::Auth_Data::SER size without sig len = %zu, size with sig len (final size) = %zu\n",
|
|
total_size_without_siglen,
|
|
final_buffer_size
|
|
);
|
|
|
|
std::vector<uint8_t> buffer;
|
|
buffer.resize(final_buffer_size);
|
|
|
|
uint8_t* pBuffer = buffer.data();
|
|
|
|
#define SER_VAR(v) \
|
|
*reinterpret_cast<std::remove_const<decltype(v)>::type *>(pBuffer) = v; \
|
|
pBuffer += sizeof(v)
|
|
|
|
// serialize the GC data first
|
|
if (HasGC)
|
|
{
|
|
memcpy(pBuffer, GCData.data(), GCData.size());
|
|
pBuffer += GCData.size();
|
|
|
|
// when GC data is written (HasGC),
|
|
// the next 4 bytes after the GCData will be the length of the remaining data in the final buffer
|
|
// i.e. final buffer size - length of GCData layout
|
|
// i.e. ticket data length + STEAM_APPTICKET_SIGLEN
|
|
//
|
|
// notice that we subtract the entire layout length, not just GCData.size(),
|
|
// otherwise these next 4 bytes will include themselves!
|
|
uint32_t remaining_length = (uint32_t)(final_buffer_size - gc_data_layout_length);
|
|
SER_VAR(remaining_length);
|
|
}
|
|
|
|
// serialize the ticket data
|
|
SER_VAR(ticket_data_layout_length);
|
|
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 (before signature) [%zu bytes]: %s\n", buffer.size(), str.c_str());
|
|
}
|
|
#endif
|
|
|
|
//Todo make a signature
|
|
std::vector<uint8_t> signature = sign_auth_data(app_ticket_key, tickedData, total_size_without_siglen);
|
|
if (signature.size() == STEAM_APPTICKET_SIGLEN) {
|
|
memcpy(buffer.data() + total_size_without_siglen, signature.data(), signature.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 (after signature) [%zu bytes]: %s\n", buffer.size(), str.c_str());
|
|
}
|
|
#endif
|
|
|
|
} else {
|
|
PRINT_DEBUG("AUTH::Auth_Data::SER signature size [%zu] is invalid\n", signature.size());
|
|
}
|
|
|
|
#undef SER_VAR
|
|
|
|
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
|