merchant

Merchant backend to process payments, run by merchants
Log | Files | Refs | Submodules | README | LICENSE

select_otp.c (3175B)

      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_error_codes.h>
     23 #include <taler/taler_dbevents.h>
     24 #include <taler/taler_pq_lib.h>
     25 #include "merchant-database/select_otp.h"
     26 #include "helper.h"
     27 
     28 
     29 enum GNUNET_DB_QueryStatus
     30 TALER_MERCHANTDB_select_otp (struct TALER_MERCHANTDB_PostgresContext *pg,
     31                              const char *instance_id,
     32                              const char *otp_id,
     33                              struct TALER_MERCHANTDB_OtpDeviceDetails *td)
     34 {
     35   struct GNUNET_PQ_QueryParam params[] = {
     36     GNUNET_PQ_query_param_string (instance_id),
     37     GNUNET_PQ_query_param_string (otp_id),
     38     GNUNET_PQ_query_param_end
     39   };
     40 
     41   PREPARE (pg,
     42            "select_otp",
     43            "SELECT"
     44            " otp_description"
     45            ",otp_ctr"
     46            ",otp_key"
     47            ",otp_algorithm"
     48            " FROM merchant_otp_devices"
     49            " JOIN merchant_instances"
     50            "   USING (merchant_serial)"
     51            " WHERE merchant_instances.merchant_id=$1"
     52            "   AND merchant_otp_devices.otp_id=$2");
     53   if (NULL == td)
     54   {
     55     struct GNUNET_PQ_ResultSpec rs_null[] = {
     56       GNUNET_PQ_result_spec_end
     57     };
     58 
     59     check_connection (pg);
     60     return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     61                                                      "select_otp",
     62                                                      params,
     63                                                      rs_null);
     64   }
     65   else
     66   {
     67     uint32_t pos32;
     68     struct GNUNET_PQ_ResultSpec rs[] = {
     69       GNUNET_PQ_result_spec_string ("otp_description",
     70                                     &td->otp_description),
     71       GNUNET_PQ_result_spec_uint64 ("otp_ctr",
     72                                     &td->otp_ctr),
     73       GNUNET_PQ_result_spec_string ("otp_key",
     74                                     &td->otp_key),
     75       GNUNET_PQ_result_spec_uint32 ("otp_algorithm",
     76                                     &pos32),
     77       GNUNET_PQ_result_spec_end
     78     };
     79     enum GNUNET_DB_QueryStatus qs;
     80 
     81     check_connection (pg);
     82     qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     83                                                    "select_otp",
     84                                                    params,
     85                                                    rs);
     86     td->otp_algorithm = (enum TALER_MerchantConfirmationAlgorithm) pos32;
     87     return qs;
     88   }
     89 }