Line data    Source code

       1              : /*
       2              :    This file is part of TALER
       3              :    Copyright (C) 2025 Taler Systems SA
       4              : 
       5              :    TALER is free software; you can redistribute it and/or modify it under the
       6              :    terms of the GNU General Public License as published by the Free Software
       7              :    Foundation; either version 3, or (at your option) any later version.
       8              : 
       9              :    TALER is distributed in the hope that it will be useful, but WITHOUT ANY
      10              :    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
      11              :    A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
      12              : 
      13              :    You should have received a copy of the GNU General Public License along with
      14              :    TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
      15              :  */
      16              : /**
      17              :  * @file backenddb/pg_solve_mfa_challenge.c
      18              :  * @brief Implementation of the solve_mfa_challenge function for Postgres
      19              :  * @author Christian Grothoff
      20              :  */
      21              : #include "platform.h"
      22              : #include <taler/taler_error_codes.h>
      23              : #include <taler/taler_dbevents.h>
      24              : #include <taler/taler_pq_lib.h>
      25              : #include "pg_solve_mfa_challenge.h"
      26              : #include "pg_helper.h"
      27              : 
      28              : 
      29              : enum GNUNET_DB_QueryStatus
      30            0 : TMH_PG_solve_mfa_challenge (
      31              :   void *cls,
      32              :   uint64_t challenge_id,
      33              :   const struct TALER_MERCHANT_MFA_BodyHash *h_body,
      34              :   const char *solution,
      35              :   bool *solved,
      36              :   uint32_t *retry_counter)
      37              : {
      38            0 :   struct PostgresClosure *pg = cls;
      39            0 :   struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
      40              :   bool no_match;
      41            0 :   struct GNUNET_PQ_QueryParam params[] = {
      42            0 :     GNUNET_PQ_query_param_uint64 (&challenge_id),
      43            0 :     GNUNET_PQ_query_param_auto_from_type (h_body),
      44            0 :     GNUNET_PQ_query_param_string (solution),
      45            0 :     GNUNET_PQ_query_param_absolute_time (&now),
      46              :     GNUNET_PQ_query_param_end
      47              :   };
      48            0 :   struct GNUNET_PQ_ResultSpec rs[] = {
      49            0 :     GNUNET_PQ_result_spec_bool ("out_solved",
      50              :                                 solved),
      51            0 :     GNUNET_PQ_result_spec_allow_null (
      52              :       GNUNET_PQ_result_spec_uint32 ("out_retry_counter",
      53              :                                     retry_counter),
      54              :       &no_match),
      55              :     GNUNET_PQ_result_spec_end
      56              :   };
      57              :   enum GNUNET_DB_QueryStatus qs;
      58              : 
      59              :   /* conservatively set security-relevant return values to
      60              :      safe values, even though these should not be used with qs <= 0 */
      61            0 :   *solved = false;
      62            0 :   *retry_counter = 0;
      63            0 :   PREPARE (pg,
      64              :            "solve_mfa_challenge",
      65              :            "SELECT"
      66              :            "  out_solved"
      67              :            " ,out_retry_counter"
      68              :            "  FROM merchant_do_solve_mfa_challenge"
      69              :            " ($1, $2, $3, $4);");
      70            0 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      71              :                                                  "solve_mfa_challenge",
      72              :                                                  params,
      73              :                                                  rs);
      74            0 :   if (qs <= 0)
      75            0 :     return qs;
      76            0 :   if (no_match)
      77              :   {
      78            0 :     GNUNET_PQ_cleanup_result (rs);
      79            0 :     return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
      80              :   }
      81            0 :   GNUNET_PQ_cleanup_result (rs);
      82            0 :   return qs;
      83              : }