exchange

Base system with REST service to issue digital coins, run by the payment service provider
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pg_do_check_deposit_idempotent.c (4805B)

      1 /*
      2    This file is part of TALER
      3    Copyright (C) 2022-2023 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 exchangedb/pg_do_deposit.c
     18  * @brief Implementation of the do_deposit function for Postgres
     19  * @author Christian Grothoff
     20  */
     21 #include "taler/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_do_check_deposit_idempotent.h"
     26 #include "pg_helper.h"
     27 #include "pg_compute_shard.h"
     28 
     29 
     30 enum GNUNET_DB_QueryStatus
     31 TEH_PG_do_check_deposit_idempotent (
     32   void *cls,
     33   const struct TALER_EXCHANGEDB_BatchDeposit *bd,
     34   struct GNUNET_TIME_Timestamp *exchange_timestamp,
     35   bool *is_idempotent)
     36 {
     37   struct PostgresClosure *pg = cls;
     38   uint64_t deposit_shard = TEH_PG_compute_shard (&bd->merchant_pub);
     39   const struct TALER_CoinSpendPublicKeyP *coin_pubs[GNUNET_NZL (bd->num_cdis)];
     40   const struct TALER_CoinSpendSignatureP *coin_sigs[GNUNET_NZL (bd->num_cdis)];
     41   struct TALER_Amount amounts_with_fee[GNUNET_NZL (bd->num_cdis)];
     42   struct TALER_NormalizedPaytoHashP h_normalized_payto;
     43   struct GNUNET_PQ_QueryParam params[] = {
     44     /* data for batch_deposits */
     45     GNUNET_PQ_query_param_uint64 (&deposit_shard),
     46     GNUNET_PQ_query_param_auto_from_type (&bd->merchant_pub),
     47     GNUNET_PQ_query_param_timestamp (&bd->wallet_timestamp),
     48     GNUNET_PQ_query_param_timestamp (exchange_timestamp),
     49     GNUNET_PQ_query_param_timestamp (&bd->refund_deadline),
     50     GNUNET_PQ_query_param_timestamp (&bd->wire_deadline),
     51     GNUNET_PQ_query_param_auto_from_type (&bd->h_contract_terms),
     52     (bd->no_wallet_data_hash)
     53     ? GNUNET_PQ_query_param_null ()
     54     : GNUNET_PQ_query_param_auto_from_type (&bd->wallet_data_hash),
     55     GNUNET_PQ_query_param_auto_from_type (&bd->wire_salt),
     56     GNUNET_PQ_query_param_auto_from_type (&bd->wire_target_h_payto),
     57     (0 == bd->policy_details_serial_id)
     58     ? GNUNET_PQ_query_param_null ()
     59     : GNUNET_PQ_query_param_uint64 (&bd->policy_details_serial_id),
     60     GNUNET_PQ_query_param_bool (bd->policy_blocked),
     61     /* arrays for coin_deposits */
     62     GNUNET_PQ_query_param_array_ptrs_auto_from_type (bd->num_cdis,
     63                                                      coin_pubs,
     64                                                      pg->conn),
     65     GNUNET_PQ_query_param_array_ptrs_auto_from_type (bd->num_cdis,
     66                                                      coin_sigs,
     67                                                      pg->conn),
     68     TALER_PQ_query_param_array_amount (bd->num_cdis,
     69                                        amounts_with_fee,
     70                                        pg->conn),
     71     GNUNET_PQ_query_param_end
     72   };
     73   bool no_time;
     74   struct GNUNET_PQ_ResultSpec rs[] = {
     75     GNUNET_PQ_result_spec_allow_null (
     76       GNUNET_PQ_result_spec_timestamp ("exchange_timestamp",
     77                                        exchange_timestamp),
     78       &no_time),
     79     GNUNET_PQ_result_spec_bool ("is_idempotent",
     80                                 is_idempotent),
     81     GNUNET_PQ_result_spec_end
     82   };
     83   enum GNUNET_DB_QueryStatus qs;
     84 
     85   TALER_full_payto_normalize_and_hash (bd->receiver_wire_account,
     86                                        &h_normalized_payto);
     87   for (unsigned int i = 0; i < bd->num_cdis; i++)
     88   {
     89     const struct TALER_EXCHANGEDB_CoinDepositInformation *cdi
     90       = &bd->cdis[i];
     91 
     92     amounts_with_fee[i] = cdi->amount_with_fee;
     93     coin_pubs[i] = &cdi->coin.coin_pub;
     94     coin_sigs[i] = &cdi->csig;
     95     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
     96                 "Do deposit %u = %s\n",
     97                 i,
     98                 TALER_B2S (&cdi->coin.coin_pub));
     99   }
    100   PREPARE (pg,
    101            "call_check_deposit_idempotent",
    102            "SELECT "
    103            " out_exchange_timestamp AS exchange_timestamp"
    104            ",out_is_idempotent AS is_idempotent"
    105            " FROM exchange_do_check_deposit_idempotent"
    106            " ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15);");
    107   qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
    108                                                  "call_check_deposit_idempotent",
    109                                                  params,
    110                                                  rs);
    111   GNUNET_PQ_cleanup_query_params_closures (params);
    112   return qs;
    113 }