Line data    Source code

       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 backenddb/pg_lookup_order.c
      18              :  * @brief Implementation of the lookup_order 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 "pg_lookup_order.h"
      26              : #include "pg_helper.h"
      27              : 
      28              : enum GNUNET_DB_QueryStatus
      29          143 : TMH_PG_lookup_order (void *cls,
      30              :                      const char *instance_id,
      31              :                      const char *order_id,
      32              :                      struct TALER_ClaimTokenP *claim_token,
      33              :                      struct TALER_MerchantPostDataHashP *h_post_data,
      34              :                      json_t **contract_terms)
      35              : {
      36          143 :   struct PostgresClosure *pg = cls;
      37              :   json_t *j;
      38              :   struct TALER_ClaimTokenP ct;
      39              :   enum GNUNET_DB_QueryStatus qs;
      40          143 :   struct GNUNET_PQ_QueryParam params[] = {
      41          143 :     GNUNET_PQ_query_param_string (instance_id),
      42          143 :     GNUNET_PQ_query_param_string (order_id),
      43              :     GNUNET_PQ_query_param_end
      44              :   };
      45          143 :   struct GNUNET_PQ_ResultSpec rs[] = {
      46          143 :     TALER_PQ_result_spec_json ("contract_terms",
      47              :                                &j),
      48          143 :     GNUNET_PQ_result_spec_auto_from_type ("claim_token",
      49              :                                           &ct),
      50          143 :     GNUNET_PQ_result_spec_auto_from_type ("h_post_data",
      51              :                                           h_post_data),
      52              :     GNUNET_PQ_result_spec_end
      53              :   };
      54              : 
      55          143 :   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
      56              :               "Finding contract term, order_id: '%s', instance_id: '%s'.\n",
      57              :               order_id,
      58              :               instance_id);
      59          143 :   check_connection (pg);
      60          143 :   PREPARE (pg,
      61              :            "lookup_order",
      62              :            "SELECT"
      63              :            " contract_terms::TEXT"
      64              :            ",claim_token"
      65              :            ",h_post_data"
      66              :            ",pos_key"
      67              :            " FROM merchant_orders"
      68              :            " WHERE merchant_orders.merchant_serial="
      69              :            "     (SELECT merchant_serial "
      70              :            "        FROM merchant_instances"
      71              :            "        WHERE merchant_id=$1)"
      72              :            "   AND merchant_orders.order_id=$2");
      73          143 :   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
      74              :                                                  "lookup_order",
      75              :                                                  params,
      76              :                                                  rs);
      77          143 :   if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs)
      78              :   {
      79           74 :     if (NULL != contract_terms)
      80           74 :       *contract_terms = j;
      81              :     else
      82            0 :       json_decref (j);
      83           74 :     if (NULL != claim_token)
      84           73 :       *claim_token = ct;
      85              :   }
      86              :   else
      87              :   {
      88              :     /* just to be safe: NULL it */
      89           69 :     if (NULL != contract_terms)
      90           65 :       *contract_terms = NULL;
      91           69 :     if (NULL != claim_token)
      92           65 :       *claim_token = (struct TALER_ClaimTokenP) { 0 }
      93              :     ;
      94              :   }
      95          143 :   return qs;
      96              : }