vg_steam_auth.h

   1 #ifndef VG_STEAM_AUTH_H
   2 #define VG_STEAM_AUTH_H
   3
   4 #include "vg/vg_platform.h"
   5 #include "vg/vg_io.h"
   6
   7 typedef u32 HAuthTicket;
   8 enum{ k_HAuthTicketInvalid = 0 };
   9
  10 #include "vg_steam.h"
  11 #if defined( VALVE_CALLBACK_PACK_SMALL )
  12  #pragma pack( push, 4 )
  13 #elif defined( VALVE_CALLBACK_PACK_LARGE )
  14  #pragma pack( push, 8 )
  15 #endif
  16
  17 typedef struct EncryptedAppTicketResponse_t EncryptedAppTicketResponse_t;
  18 struct EncryptedAppTicketResponse_t
  19 {
  20         EResult m_eResult;
  21 };
  22 enum{ k_iEncryptedAppTicketResponse = k_iSteamUserCallbacks + 54 };
  23
  24 typedef struct GetAuthSessionTicketResponse_t GetAuthSessionTicketResponse_t;
  25 struct GetAuthSessionTicketResponse_t
  26 {
  27         HAuthTicket m_hAuthTicket;
  28         EResult m_eResult;
  29 };
  30 enum{ k_iGetAuthSessionTicketResponse = k_iSteamUserCallbacks + 63 };
  31
  32 #pragma pack(pop)
  33
  34 /*
  35  * Regular authentication
  36  */
  37
  38 typedef void ISteamUser;
  39 ISteamUser *SteamAPI_SteamUser_v021(void);
  40 ISteamUser *SteamAPI_SteamUser(void)
  41 {
  42    return SteamAPI_SteamUser_v021();
  43 }
  44
  45 HAuthTicket SteamAPI_ISteamUser_GetAuthSessionTicket(
  46                   ISteamUser *self, void *pTicket,
  47                   int cbMaxTicket, u32 *pcbTicket );
  48
  49 /*
  50  * Application symetric-key ticket (Client)
  51  */
  52
  53 SteamAPICall_t SteamAPI_ISteamUser_RequestEncryptedAppTicket(
  54       ISteamUser *self, void *pDataToInclude, int cbDataToInclude );
  55
  56 steamapi_bool SteamAPI_ISteamUser_GetEncryptedAppTicket(
  57       ISteamUser *self, void *pTicket,
  58       int cbMaxTicket, u32 *pcbTicket );
  59
  60 u64_steamid SteamAPI_ISteamUser_GetSteamID( ISteamUser *self );
  61
  62
  63 /*
  64  * Application symetric-key ticket method (Server)
  65  */
  66
  67 enum { k_nSteamEncryptedAppTicketSymmetricKeyLen = 32 };
  68
  69 steamapi_bool SteamEncryptedAppTicket_BDecryptTicket( u8 *rgubTicketEncrypted,
  70          u32 cubTicketEncrypted, u8 *rgubTicketDecrypted,
  71          u32 *pcubTicketDecrypted,
  72          u8 rgubKey[k_nSteamEncryptedAppTicketSymmetricKeyLen],
  73          int cubKey );
  74
  75 steamapi_bool SteamEncryptedAppTicket_BIsTicketForApp( u8 *rgubTicketDecrypted,
  76       u32 cubTicketDecrypted, AppId_t nAppID );
  77
  78 RTime32 SteamEncryptedAppTicket_GetTicketIssueTime( u8 *rgubTicketDecrypted,
  79       u32 cubTicketDecrypted );
  80
  81 void SteamEncryptedAppTicket_GetTicketSteamID(
  82       u8 *rgubTicketDecrypted, u32 cubTicketDecrypted, CSteamID *psteamID );
  83
  84 AppId_t SteamEncryptedAppTicket_GetTicketAppID( u8 *rgubTicketDecrypted,
  85       u32 cubTicketDecrypted );
  86
  87 steamapi_bool SteamEncryptedAppTicket_BUserOwnsAppInTicket(
  88       u8 *rgubTicketDecrypted, u32 cubTicketDecrypted, AppId_t nAppID );
  89
  90 steamapi_bool SteamEncryptedAppTicket_BUserIsVacBanned(
  91       u8 *rgubTicketDecrypted, u32 cubTicketDecrypted );
  92
  93 steamapi_bool SteamEncryptedAppTicket_BGetAppDefinedValue(
  94       u8 *rgubTicketDecrypted, u32 cubTicketDecrypted, u32 *pValue );
  95
  96 u8 *SteamEncryptedAppTicket_GetUserVariableData( u8 *rgubTicketDecrypted,
  97       u32 cubTicketDecrypted, u32 *pcubUserData );
  98
  99 steamapi_bool SteamEncryptedAppTicket_BIsTicketSigned( u8 *rgubTicketDecrypted,
 100       u32 cubTicketDecrypted, u8 *pubRSAKey, u32 cubRSAKey );
 101
 102 steamapi_bool SteamEncryptedAppTicket_BIsLicenseBorrowed(
 103       u8 *rgubTicketDecrypted, u32 cubTicketDecrypted );
 104
 105 steamapi_bool SteamEncryptedAppTicket_BIsLicenseTemporary(
 106       u8 *rgubTicketDecrypted, u32 cubTicketDecrypted );
 107
 108 static u8 vg_char_base16( char c )
 109 {
 110    if( c >= '0' && c <= '9' )
 111       return c-'0';
 112    if( c >= 'a' && c <= 'f' )
 113       return (c-'a') + 10;
 114
 115    return 0;
 116 }
 117
 118 static int vg_load_steam_symetric_key( const char *path, u8 *buf )
 119 {
 120    vg_linear_clear( vg_mem.scratch );
 121    u32 size;
 122    char *src = vg_file_read( vg_mem.scratch, path, &size );
 123
 124    if( src )
 125    {
 126       if( size < k_nSteamEncryptedAppTicketSymmetricKeyLen )
 127       {
 128          vg_error( "Application key was invalid size\n" );
 129          return 0;
 130       }
 131
 132       for( int i=0; i<k_nSteamEncryptedAppTicketSymmetricKeyLen; i++ )
 133       {
 134          buf[i] = (vg_char_base16( src[i*2+0] ) << 4) |
 135                    vg_char_base16( src[i*2+1] );
 136       }
 137
 138       return 1;
 139    }
 140    else
 141    {
 142       vg_error( "Application key path was invalid\n" );
 143       return 0;
 144    }
 145 }
 146
 147
 148 #endif /* VG_STEAM_AUTH_H */