merchant

Merchant backend to process payments, run by merchants
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update_to_expected_transfer_finalized.c (3654B)


      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/update_to_expected_transfer_finalized.c
     18  * @brief Implementation of the update_to_expected_transfer_finalized function for Postgres
     19  * @author Christian Grothoff
     20  */
     21 #include "platform.h"
     22 #include <taler/taler_pq_lib.h>
     23 #include "merchant-database/update_to_expected_transfer_finalized.h"
     24 #include "helper.h"
     25 
     26 
     27 enum GNUNET_DB_QueryStatus
     28 TALER_MERCHANTDB_update_to_expected_transfer_finalized (
     29   struct TALER_MERCHANTDB_PostgresContext *pg,
     30   const char *exchange_url,
     31   const struct TALER_WireTransferIdentifierRawP *wtid,
     32   const struct GNUNET_HashCode *h_details,
     33   const struct TALER_Amount *total_amount,
     34   const struct TALER_Amount *wire_fee,
     35   const struct TALER_ExchangePublicKeyP *exchange_pub,
     36   const struct TALER_ExchangeSignatureP *exchange_sig,
     37   const struct TALER_FullPayto exchange_payto_uri)
     38 {
     39   struct GNUNET_PQ_QueryParam params[] = {
     40     GNUNET_PQ_query_param_auto_from_type (wtid),
     41     GNUNET_PQ_query_param_string (exchange_url),
     42     TALER_PQ_query_param_amount_with_currency (pg->conn,
     43                                                total_amount),
     44     TALER_PQ_query_param_amount_with_currency (pg->conn,
     45                                                wire_fee),
     46     GNUNET_PQ_query_param_auto_from_type (h_details),
     47     GNUNET_PQ_query_param_auto_from_type (exchange_pub),
     48     GNUNET_PQ_query_param_auto_from_type (exchange_sig),
     49     NULL == exchange_payto_uri.full_payto
     50     ? GNUNET_PQ_query_param_null ()
     51     : GNUNET_PQ_query_param_string (exchange_payto_uri.full_payto),
     52     GNUNET_PQ_query_param_end
     53   };
     54 
     55   GNUNET_assert (NULL != pg->current_merchant_id);
     56   TMH_PQ_prepare_anon (pg,
     57                        "WITH subquery AS ("
     58                        "  SELECT signkey_serial"
     59                        "    FROM merchant.merchant_exchange_signing_keys"
     60                        "   WHERE exchange_pub=$6"
     61                        ")"
     62                        "UPDATE merchant_expected_transfers SET"
     63                        " last_http_status=200"
     64                        ",last_ec=0"
     65                        ",last_detail=NULL"
     66                        ",retry_needed=FALSE"
     67                        ",retry_time=0"
     68                        ",expected_credit_amount=$3"
     69                        ",wire_fee=$4"
     70                        ",h_details=$5"
     71                        ",signkey_serial=subquery.signkey_serial"
     72                        ",exchange_sig=$7"
     73                        /* COALESCE: a retry against an exchange that stopped
     74                           reporting the account (downgrade, or a pre-v39
     75                           exchange) must not erase what we already learned. */
     76                        ",exchange_payto_uri="
     77                        "COALESCE(CAST($8 AS TEXT),exchange_payto_uri)"
     78                        " FROM subquery"
     79                        " WHERE wtid=$1"
     80                        "   AND exchange_url=$2");
     81   return GNUNET_PQ_eval_prepared_non_select (
     82     pg->conn,
     83     "",
     84     params);
     85 }