merchant

Merchant backend to process payments, run by merchants
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select_otp.c (2588B)

      1 /*
      2    This file is part of TALER
      3    Copyright (C) 2022 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/select_otp.c
     18  * @brief Implementation of the select_otp function for Postgres
     19  * @author Christian Grothoff
     20  */
     21 #include "platform.h"
     22 #include <taler/taler_pq_lib.h>
     23 #include "merchant-database/select_otp.h"
     24 #include "helper.h"
     25 
     26 
     27 enum GNUNET_DB_QueryStatus
     28 TALER_MERCHANTDB_select_otp (
     29   struct TALER_MERCHANTDB_PostgresContext *pg,
     30   const char *instance_id,
     31   const char *otp_id,
     32   struct TALER_MERCHANTDB_OtpDeviceDetails *td)
     33 {
     34   struct GNUNET_PQ_QueryParam params[] = {
     35     GNUNET_PQ_query_param_string (otp_id),
     36     GNUNET_PQ_query_param_end
     37   };
     38   uint32_t pos32;
     39   struct GNUNET_PQ_ResultSpec rs[] = {
     40     GNUNET_PQ_result_spec_string ("otp_description",
     41                                   &td->otp_description),
     42     GNUNET_PQ_result_spec_uint64 ("otp_ctr",
     43                                   &td->otp_ctr),
     44     GNUNET_PQ_result_spec_string ("otp_key",
     45                                   &td->otp_key),
     46     GNUNET_PQ_result_spec_uint32 ("otp_algorithm",
     47                                   &pos32),
     48     GNUNET_PQ_result_spec_end
     49   };
     50   enum GNUNET_DB_QueryStatus qs;
     51 
     52   GNUNET_assert (NULL != pg->current_merchant_id);
     53   GNUNET_assert (0 == strcmp (instance_id,
     54                               pg->current_merchant_id));
     55   check_connection (pg);
     56   TMH_PQ_prepare_anon (pg,
     57                        "SELECT"
     58                        " otp_description"
     59                        ",otp_ctr"
     60                        ",otp_key"
     61                        ",otp_algorithm"
     62                        " FROM merchant_otp_devices"
     63                        " WHERE otp_id=$1");
     64   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     65                                                  "",
     66                                                  params,
     67                                                  rs);
     68   td->otp_algorithm = (enum TALER_MerchantConfirmationAlgorithm) pos32;
     69   return qs;
     70 }