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Base system with REST service to issue digital coins, run by the payment service provider
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iterate_aml_holds.c (4496B)

      1 /*
      2    This file is part of TALER
      3    Copyright (C) 2026 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/auditordb/iterate_aml_holds.c
     18  * @brief Implementation of the iterate_aml_holds function for Postgres
     19  * @author Christian Grothoff
     20  */
     21 #include "taler/taler_pq_lib.h"
     22 #include "auditor-database/iterate_aml_holds.h"
     23 #include "pg_helper.h"
     24 
     25 
     26 /**
     27  * Closure for #aml_holds_cb().
     28  */
     29 struct AmlHoldsContext
     30 {
     31   /**
     32    * Function to call for each hold.
     33    */
     34   TALER_AUDITORDB_AmlHoldCallback cb;
     35 
     36   /**
     37    * Closure for @e cb.
     38    */
     39   void *cb_cls;
     40 
     41   /**
     42    * Plugin context.
     43    */
     44   struct TALER_AUDITORDB_PostgresContext *pg;
     45 
     46   /**
     47    * Query status to return.
     48    */
     49   enum GNUNET_DB_QueryStatus qs;
     50 };
     51 
     52 
     53 /**
     54  * Helper function for #TALER_AUDITORDB_iterate_aml_holds().
     55  * To be called with the results of a SELECT statement
     56  * that has returned @a num_results results.
     57  *
     58  * @param cls closure of type `struct AmlHoldsContext *`
     59  * @param result the postgres result
     60  * @param num_results the number of results in @a result
     61  */
     62 static void
     63 aml_holds_cb (void *cls,
     64               PGresult *result,
     65               unsigned int num_results)
     66 {
     67   struct AmlHoldsContext *ahc = cls;
     68   struct TALER_AUDITORDB_PostgresContext *pg = ahc->pg;
     69 
     70   for (unsigned int i = 0; i < num_results; i++)
     71   {
     72     struct TALER_AUDITORDB_AmlHold ah;
     73     struct GNUNET_PQ_ResultSpec rs[] = {
     74       GNUNET_PQ_result_spec_uint64 ("row_id",
     75                                     &ah.row_id),
     76       GNUNET_PQ_result_spec_auto_from_type ("wtid",
     77                                             &ah.wtid),
     78       GNUNET_PQ_result_spec_auto_from_type ("wire_target_h_payto",
     79                                             &ah.wire_target_h_payto),
     80       GNUNET_PQ_result_spec_string ("account",
     81                                     &ah.account.full_payto),
     82       TALER_PQ_RESULT_SPEC_AMOUNT ("amount",
     83                                    &ah.amount),
     84       GNUNET_PQ_result_spec_uint32 ("deferral_reason",
     85                                     &ah.deferral_reason),
     86       GNUNET_PQ_result_spec_uint64 ("legitimization_measure_serial_id",
     87                                     &ah.legitimization_measure_serial_id),
     88       GNUNET_PQ_result_spec_absolute_time ("creation_date",
     89                                            &ah.creation_date),
     90       GNUNET_PQ_result_spec_bool ("suppressed",
     91                                   &ah.suppressed),
     92       GNUNET_PQ_result_spec_end
     93     };
     94     enum GNUNET_GenericReturnValue rval;
     95 
     96     if (GNUNET_OK !=
     97         GNUNET_PQ_extract_result (result,
     98                                   rs,
     99                                   i))
    100     {
    101       GNUNET_break (0);
    102       ahc->qs = GNUNET_DB_STATUS_HARD_ERROR;
    103       return;
    104     }
    105     ahc->qs = i + 1;
    106     rval = ahc->cb (ahc->cb_cls,
    107                     &ah);
    108     GNUNET_PQ_cleanup_result (rs);
    109     if (GNUNET_OK != rval)
    110       break;
    111   }
    112 }
    113 
    114 
    115 enum GNUNET_DB_QueryStatus
    116 TALER_AUDITORDB_iterate_aml_holds (
    117   struct TALER_AUDITORDB_PostgresContext *pg,
    118   TALER_AUDITORDB_AmlHoldCallback cb,
    119   TALER_AUDITORDB_AML_HOLD_RESULT_CLOSURE *cb_cls)
    120 {
    121   struct GNUNET_PQ_QueryParam params[] = {
    122     GNUNET_PQ_query_param_end
    123   };
    124   struct AmlHoldsContext ahc = {
    125     .cb = cb,
    126     .cb_cls = cb_cls,
    127     .pg = pg
    128   };
    129   enum GNUNET_DB_QueryStatus qs;
    130 
    131   PREPARE (pg,
    132            "iterate_aml_holds",
    133            "SELECT"
    134            " row_id"
    135            ",wtid"
    136            ",wire_target_h_payto"
    137            ",account"
    138            ",amount"
    139            ",deferral_reason"
    140            ",legitimization_measure_serial_id"
    141            ",creation_date"
    142            ",suppressed"
    143            " FROM auditor_aml_holds"
    144            " ORDER BY row_id ASC;");
    145   qs = GNUNET_PQ_eval_prepared_multi_select (
    146     pg->conn,
    147     "iterate_aml_holds",
    148     params,
    149     &aml_holds_cb,
    150     &ahc);
    151   if (qs > 0)
    152     return ahc.qs;
    153   GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
    154   return qs;
    155 }