LCOV - code coverage report
Current view: top level - exchangedb - pg_iterate_denominations.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 35 37 94.6 %
Date: 2025-06-05 21:03:14 Functions: 2 2 100.0 %

          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 exchangedb/pg_iterate_denominations.c
      18             :  * @brief Implementation of the iterate_denominations function for Postgres
      19             :  * @author Christian Grothoff
      20             :  */
      21             : #include "platform.h"
      22             : #include "taler_error_codes.h"
      23             : #include "taler_dbevents.h"
      24             : #include "taler_pq_lib.h"
      25             : #include "pg_iterate_denominations.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : 
      29             : /**
      30             :  * Closure for #dominations_cb_helper()
      31             :  */
      32             : struct DenomsIteratorContext
      33             : {
      34             :   /**
      35             :    * Function to call with the results.
      36             :    */
      37             :   TALER_EXCHANGEDB_DenominationsCallback cb;
      38             : 
      39             :   /**
      40             :    * Closure to pass to @e cb
      41             :    */
      42             :   void *cb_cls;
      43             : 
      44             :   /**
      45             :    * Plugin context.
      46             :    */
      47             :   struct PostgresClosure *pg;
      48             : };
      49             : 
      50             : 
      51             : /**
      52             :  * Helper function for #TEH_PG_iterate_denominations().
      53             :  * Calls the callback with each denomination key.
      54             :  *
      55             :  * @param cls a `struct DenomsIteratorContext`
      56             :  * @param result db results
      57             :  * @param num_results number of results in @a result
      58             :  */
      59             : static void
      60          89 : dominations_cb_helper (void *cls,
      61             :                        PGresult *result,
      62             :                        unsigned int num_results)
      63             : {
      64          89 :   struct DenomsIteratorContext *dic = cls;
      65          89 :   struct PostgresClosure *pg = dic->pg;
      66             : 
      67       10985 :   for (unsigned int i = 0; i<num_results; i++)
      68             :   {
      69       10896 :     struct TALER_EXCHANGEDB_DenominationKeyMetaData meta = {0};
      70       10896 :     struct TALER_DenominationPublicKey denom_pub = {0};
      71       10896 :     struct TALER_MasterSignatureP master_sig = {0};
      72       10896 :     struct TALER_DenominationHashP h_denom_pub = {0};
      73             :     bool revoked;
      74       10896 :     struct GNUNET_PQ_ResultSpec rs[] = {
      75       10896 :       GNUNET_PQ_result_spec_uint64 ("denominations_serial",
      76             :                                     &meta.serial),
      77       10896 :       GNUNET_PQ_result_spec_auto_from_type ("master_sig",
      78             :                                             &master_sig),
      79       10896 :       GNUNET_PQ_result_spec_bool ("revoked",
      80             :                                   &revoked),
      81       10896 :       GNUNET_PQ_result_spec_timestamp ("valid_from",
      82             :                                        &meta.start),
      83       10896 :       GNUNET_PQ_result_spec_timestamp ("expire_withdraw",
      84             :                                        &meta.expire_withdraw),
      85       10896 :       GNUNET_PQ_result_spec_timestamp ("expire_deposit",
      86             :                                        &meta.expire_deposit),
      87       10896 :       GNUNET_PQ_result_spec_timestamp ("expire_legal",
      88             :                                        &meta.expire_legal),
      89       10896 :       TALER_PQ_RESULT_SPEC_AMOUNT ("coin",
      90             :                                    &meta.value),
      91       10896 :       TALER_PQ_RESULT_SPEC_AMOUNT ("fee_withdraw",
      92             :                                    &meta.fees.withdraw),
      93       10896 :       TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
      94             :                                    &meta.fees.deposit),
      95       10896 :       TALER_PQ_RESULT_SPEC_AMOUNT ("fee_refresh",
      96             :                                    &meta.fees.refresh),
      97       10896 :       TALER_PQ_RESULT_SPEC_AMOUNT ("fee_refund",
      98             :                                    &meta.fees.refund),
      99       10896 :       TALER_PQ_result_spec_denom_pub ("denom_pub",
     100             :                                       &denom_pub),
     101       10896 :       GNUNET_PQ_result_spec_uint32 ("age_mask",
     102             :                                     &meta.age_mask.bits),
     103             :       GNUNET_PQ_result_spec_end
     104             :     };
     105             : 
     106       10896 :     if (GNUNET_OK !=
     107       10896 :         GNUNET_PQ_extract_result (result,
     108             :                                   rs,
     109             :                                   i))
     110             :     {
     111           0 :       GNUNET_break (0);
     112           0 :       return;
     113             :     }
     114             : 
     115             :     /* make sure the mask information is the same */
     116       10896 :     denom_pub.age_mask = meta.age_mask;
     117             : 
     118       10896 :     TALER_denom_pub_hash (&denom_pub,
     119             :                           &h_denom_pub);
     120       10896 :     dic->cb (dic->cb_cls,
     121             :              &denom_pub,
     122             :              &h_denom_pub,
     123             :              &meta,
     124             :              &master_sig,
     125             :              revoked);
     126       10896 :     GNUNET_PQ_cleanup_result (rs);
     127             :   }
     128             : }
     129             : 
     130             : 
     131             : enum GNUNET_DB_QueryStatus
     132          89 : TEH_PG_iterate_denominations (void *cls,
     133             :                               TALER_EXCHANGEDB_DenominationsCallback cb,
     134             :                               void *cb_cls)
     135             : {
     136          89 :   struct PostgresClosure *pg = cls;
     137          89 :   struct GNUNET_PQ_QueryParam params[] = {
     138             :     GNUNET_PQ_query_param_end
     139             :   };
     140          89 :   struct DenomsIteratorContext dic = {
     141             :     .cb = cb,
     142             :     .cb_cls = cb_cls,
     143             :     .pg = pg
     144             :   };
     145             : 
     146          89 :   PREPARE (pg,
     147             :            "select_denominations",
     148             :            "SELECT"
     149             :            " denominations_serial"
     150             :            ",denominations.master_sig"
     151             :            ",denom_revocations_serial_id IS NOT NULL AS revoked"
     152             :            ",valid_from"
     153             :            ",expire_withdraw"
     154             :            ",expire_deposit"
     155             :            ",expire_legal"
     156             :            ",coin"              /* value of this denom */
     157             :            ",fee_withdraw"
     158             :            ",fee_deposit"
     159             :            ",fee_refresh"
     160             :            ",fee_refund"
     161             :            ",denom_type"
     162             :            ",age_mask"
     163             :            ",denom_pub"
     164             :            " FROM denominations"
     165             :            " LEFT JOIN "
     166             :            "   denomination_revocations USING (denominations_serial);");
     167          89 :   return GNUNET_PQ_eval_prepared_multi_select (pg->conn,
     168             :                                                "select_denominations",
     169             :                                                params,
     170             :                                                &dominations_cb_helper,
     171             :                                                &dic);
     172             : }

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