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 src/backenddb/get_mfa_challenge.c
      18              :  * @brief Implementation of the get_mfa_challenge function for Postgres
      19              :  * @author Christian Grothoff
      20              :  */
      21              : #include "platform.h"
      22              : #include <taler/taler_pq_lib.h>
      23              : #include "taler/taler_merchant_util.h"
      24              : #include "merchantdb_lib.h"
      25              : #include "merchant-database/get_mfa_challenge.h"
      26              : #include "helper.h"
      27              : 
      28              : 
      29              : enum GNUNET_DB_QueryStatus
      30           28 : TALER_MERCHANTDB_get_mfa_challenge (
      31              :   struct TALER_MERCHANTDB_PostgresContext *pg,
      32              :   uint64_t challenge_id,
      33              :   const struct TALER_MERCHANT_MFA_BodyHash *h_body,
      34              :   struct TALER_MERCHANT_MFA_BodySalt *salt,
      35              :   char **required_address,
      36              :   enum TALER_MERCHANT_MFA_CriticalOperation *op,
      37              :   struct GNUNET_TIME_Absolute *confirmation_date,
      38              :   struct GNUNET_TIME_Absolute *retransmission_date,
      39              :   uint32_t *retry_counter,
      40              :   enum TALER_MERCHANT_MFA_Channel *tan_channel,
      41              :   char **instance_name)
      42              : {
      43           28 :   struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
      44           28 :   struct GNUNET_PQ_QueryParam params[] = {
      45           28 :     GNUNET_PQ_query_param_uint64 (&challenge_id),
      46           28 :     GNUNET_PQ_query_param_auto_from_type (h_body),
      47           28 :     GNUNET_PQ_query_param_absolute_time (&now),
      48              :     GNUNET_PQ_query_param_end
      49              :   };
      50              :   char *op_str;
      51              :   char *chan_str;
      52              :   bool no_conf;
      53           28 :   struct GNUNET_PQ_ResultSpec rs[] = {
      54           28 :     GNUNET_PQ_result_spec_string ("op",
      55              :                                   &op_str),
      56           28 :     GNUNET_PQ_result_spec_auto_from_type ("salt",
      57              :                                           salt),
      58           28 :     GNUNET_PQ_result_spec_allow_null (
      59              :       GNUNET_PQ_result_spec_absolute_time ("confirmation_date",
      60              :                                            confirmation_date),
      61              :       &no_conf),
      62           28 :     GNUNET_PQ_result_spec_absolute_time ("retransmission_date",
      63              :                                          retransmission_date),
      64           28 :     GNUNET_PQ_result_spec_uint32 ("retry_counter",
      65              :                                   retry_counter),
      66           28 :     GNUNET_PQ_result_spec_string ("tan_channel",
      67              :                                   &chan_str),
      68           28 :     GNUNET_PQ_result_spec_string ("required_address",
      69              :                                   required_address),
      70           28 :     GNUNET_PQ_result_spec_string ("instance_name",
      71              :                                   instance_name),
      72              :     GNUNET_PQ_result_spec_end
      73              :   };
      74              :   enum GNUNET_DB_QueryStatus qs;
      75              : 
      76           28 :   PREPARE (pg,
      77              :            "get_mfa_challenge",
      78              :            "SELECT "
      79              :            "  op::TEXT"
      80              :            " ,salt"
      81              :            " ,confirmation_date"
      82              :            " ,retransmission_date"
      83              :            " ,retry_counter"
      84              :            " ,required_address"
      85              :            " ,tan_channel::TEXT"
      86              :            " ,instance_name"
      87              :            "  FROM merchant.tan_challenges"
      88              :            " WHERE (challenge_id = $1)"
      89              :            "   AND (h_body = $2)"
      90              :            "   AND (expiration_date > $3)");
      91              :   /* Initialize to conservative values in case qs ends up <= 0 */
      92           28 :   *tan_channel = TALER_MERCHANT_MFA_CHANNEL_NONE;
      93           28 :   *op = TALER_MERCHANT_MFA_CO_NONE;
      94           28 :   *instance_name = NULL;
      95           28 :   *required_address = NULL;
      96           28 :   *retry_counter = 0;
      97           28 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      98              :                                                  "get_mfa_challenge",
      99              :                                                  params,
     100              :                                                  rs);
     101           28 :   if (qs <= 0)
     102            0 :     return qs;
     103           28 :   if (no_conf)
     104           11 :     *confirmation_date = GNUNET_TIME_UNIT_FOREVER_ABS;
     105           28 :   *tan_channel = TALER_MERCHANT_MFA_channel_from_string (chan_str);
     106           28 :   *op = TALER_MERCHANT_MFA_co_from_string (op_str);
     107           28 :   GNUNET_free (chan_str);
     108           28 :   GNUNET_free (op_str);
     109           28 :   return qs;
     110              : }