merchant

Merchant backend to process payments, run by merchants
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lookup_account.c (2370B)

      1 /*
      2    This file is part of TALER
      3    Copyright (C) 2023 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/lookup_account.c
     18  * @brief Implementation of the lookup_account function for Postgres
     19  * @author Iván Ávalos
     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/lookup_account.h"
     26 #include "helper.h"
     27 
     28 enum GNUNET_DB_QueryStatus
     29 TALER_MERCHANTDB_lookup_account (struct TALER_MERCHANTDB_PostgresContext *pg,
     30                                  const char *instance_id,
     31                                  struct TALER_FullPayto payto_uri,
     32                                  uint64_t *account_serial)
     33 {
     34   struct GNUNET_PQ_QueryParam params[] = {
     35     GNUNET_PQ_query_param_string (instance_id),
     36     GNUNET_PQ_query_param_string (payto_uri.full_payto),
     37     GNUNET_PQ_query_param_end
     38   };
     39   struct GNUNET_PQ_ResultSpec rs[] = {
     40     GNUNET_PQ_result_spec_uint64 ("account_serial",
     41                                   account_serial),
     42     GNUNET_PQ_result_spec_end
     43   };
     44 
     45   check_connection (pg);
     46   PREPARE (pg,
     47            "lookup_account",
     48            "SELECT"
     49            " account_serial"
     50            " FROM merchant_accounts"
     51            " WHERE REGEXP_REPLACE(payto_uri,'\\?.*','')"
     52            "      =REGEXP_REPLACE($2,'\\?.*','')"
     53            "   AND merchant_serial="
     54            "        (SELECT merchant_serial"
     55            "           FROM merchant_instances"
     56            "          WHERE merchant_id=$1)");
     57   return GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
     58                                                    "lookup_account",
     59                                                    params,
     60                                                    rs);
     61 }