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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_staff.c (4418B)

      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_staff.c
     18  * @brief Implementation of the iterate_aml_staff function for Postgres
     19  * @author Christian Grothoff
     20  */
     21 #include "taler/taler_error_codes.h"
     22 #include "taler/taler_pq_lib.h"
     23 #include "pg_helper.h"
     24 #include "auditor-database/iterate_aml_staff.h"
     25 
     26 
     27 /**
     28  * Closure for #aml_staff_cb().
     29  */
     30 struct AmlStaffContext
     31 {
     32   /**
     33    * Function to call for each status change.
     34    */
     35   TALER_AUDITORDB_AmlStaffCallback cb;
     36 
     37   /**
     38    * Closure for @e cb.
     39    */
     40   void *cb_cls;
     41 
     42   /**
     43    * Query status to return.
     44    */
     45   enum GNUNET_DB_QueryStatus qs;
     46 };
     47 
     48 
     49 /**
     50  * Helper function for #TALER_AUDITORDB_iterate_aml_staff().
     51  * To be called with the results of a SELECT statement
     52  * that has returned @a num_results results.
     53  *
     54  * @param cls closure of type `struct AmlStaffContext *`
     55  * @param result the postgres result
     56  * @param num_results the number of results in @a result
     57  */
     58 static void
     59 aml_staff_cb (void *cls,
     60               PGresult *result,
     61               unsigned int num_results)
     62 {
     63   struct AmlStaffContext *asc = cls;
     64 
     65   for (unsigned int i = 0; i < num_results; i++)
     66   {
     67     struct TALER_AmlOfficerPublicKeyP decider_pub;
     68     char *decider_name = NULL;
     69     bool is_active;
     70     bool read_only;
     71     bool master_sig_valid;
     72     struct GNUNET_TIME_Timestamp last_change;
     73     struct GNUNET_PQ_ResultSpec rs[] = {
     74       GNUNET_PQ_result_spec_auto_from_type ("decider_pub",
     75                                             &decider_pub),
     76       GNUNET_PQ_result_spec_string ("decider_name",
     77                                     &decider_name),
     78       GNUNET_PQ_result_spec_bool ("is_active",
     79                                   &is_active),
     80       GNUNET_PQ_result_spec_bool ("read_only",
     81                                   &read_only),
     82       GNUNET_PQ_result_spec_bool ("master_sig_valid",
     83                                   &master_sig_valid),
     84       GNUNET_PQ_result_spec_timestamp ("last_change",
     85                                        &last_change),
     86       GNUNET_PQ_result_spec_end
     87     };
     88     enum GNUNET_GenericReturnValue rval;
     89 
     90     if (GNUNET_OK !=
     91         GNUNET_PQ_extract_result (result,
     92                                   rs,
     93                                   i))
     94     {
     95       GNUNET_break (0);
     96       asc->qs = GNUNET_DB_STATUS_HARD_ERROR;
     97       return;
     98     }
     99     asc->qs = i + 1;
    100     rval = asc->cb (asc->cb_cls,
    101                     &decider_pub,
    102                     decider_name,
    103                     is_active,
    104                     read_only,
    105                     master_sig_valid,
    106                     last_change);
    107     GNUNET_PQ_cleanup_result (rs);
    108     if (GNUNET_OK != rval)
    109       break;
    110   }
    111 }
    112 
    113 
    114 enum GNUNET_DB_QueryStatus
    115 TALER_AUDITORDB_iterate_aml_staff (
    116   struct TALER_AUDITORDB_PostgresContext *pg,
    117   TALER_AUDITORDB_AmlStaffCallback cb,
    118   TALER_AUDITORDB_AML_STAFF_RESULT_CLOSURE *cb_cls)
    119 {
    120   struct GNUNET_PQ_QueryParam params[] = {
    121     GNUNET_PQ_query_param_end
    122   };
    123   struct AmlStaffContext asc = {
    124     .cb = cb,
    125     .cb_cls = cb_cls
    126   };
    127   enum GNUNET_DB_QueryStatus qs;
    128 
    129   PREPARE (pg,
    130            "iterate_aml_staff",
    131            "SELECT"
    132            " decider_pub"
    133            ",decider_name"
    134            ",is_active"
    135            ",read_only"
    136            ",master_sig_valid"
    137            ",last_change"
    138            " FROM auditor_aml_staff"
    139            " ORDER BY last_change ASC, row_id ASC;");
    140   qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
    141                                              "iterate_aml_staff",
    142                                              params,
    143                                              &aml_staff_cb,
    144                                              &asc);
    145   if (qs > 0)
    146     return asc.qs;
    147   GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
    148   return qs;
    149 }