LCOV - code coverage report
Current view: top level - exchangedb - pg_select_recoup_refresh_above_serial_id.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 37 0.0 %
Date: 2025-06-05 21:03:14 Functions: 0 2 0.0 %

          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_select_recoup_refresh_above_serial_id.c
      18             :  * @brief Implementation of the select_recoup_refresh_above_serial_id 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_select_recoup_refresh_above_serial_id.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : 
      29             : /**
      30             :  * Closure for #recoup_refresh_serial_helper_cb().
      31             :  */
      32             : struct RecoupRefreshSerialContext
      33             : {
      34             : 
      35             :   /**
      36             :    * Callback to call.
      37             :    */
      38             :   TALER_EXCHANGEDB_RecoupRefreshCallback cb;
      39             : 
      40             :   /**
      41             :    * Closure for @e cb.
      42             :    */
      43             :   void *cb_cls;
      44             : 
      45             :   /**
      46             :    * Plugin context.
      47             :    */
      48             :   struct PostgresClosure *pg;
      49             : 
      50             :   /**
      51             :    * Status code, set to #GNUNET_SYSERR on hard errors.
      52             :    */
      53             :   enum GNUNET_GenericReturnValue status;
      54             : };
      55             : 
      56             : 
      57             : /**
      58             :  * Helper function to be called with the results of a SELECT statement
      59             :  * that has returned @a num_results results.
      60             :  *
      61             :  * @param cls closure of type `struct RecoupRefreshSerialContext`
      62             :  * @param result the postgres result
      63             :  * @param num_results the number of results in @a result
      64             :  */
      65             : static void
      66           0 : recoup_refresh_serial_helper_cb (void *cls,
      67             :                                  PGresult *result,
      68             :                                  unsigned int num_results)
      69             : {
      70           0 :   struct RecoupRefreshSerialContext *psc = cls;
      71           0 :   struct PostgresClosure *pg = psc->pg;
      72             : 
      73           0 :   for (unsigned int i = 0; i<num_results; i++)
      74             :   {
      75             :     uint64_t rowid;
      76             :     struct TALER_CoinSpendPublicKeyP old_coin_pub;
      77             :     struct TALER_CoinPublicInfo coin;
      78             :     struct TALER_CoinSpendSignatureP coin_sig;
      79             :     union GNUNET_CRYPTO_BlindingSecretP coin_blind;
      80             :     struct TALER_DenominationPublicKey denom_pub;
      81             :     struct TALER_DenominationHashP old_denom_pub_hash;
      82             :     struct TALER_Amount amount;
      83             :     struct TALER_BlindedCoinHashP h_blind_ev;
      84             :     struct GNUNET_TIME_Timestamp timestamp;
      85           0 :     struct GNUNET_PQ_ResultSpec rs[] = {
      86           0 :       GNUNET_PQ_result_spec_uint64 ("recoup_refresh_uuid",
      87             :                                     &rowid),
      88           0 :       GNUNET_PQ_result_spec_timestamp ("recoup_timestamp",
      89             :                                        &timestamp),
      90           0 :       GNUNET_PQ_result_spec_auto_from_type ("old_coin_pub",
      91             :                                             &old_coin_pub),
      92           0 :       GNUNET_PQ_result_spec_auto_from_type ("old_denom_pub_hash",
      93             :                                             &old_denom_pub_hash),
      94           0 :       GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
      95             :                                             &coin.coin_pub),
      96           0 :       GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
      97             :                                             &coin_sig),
      98           0 :       GNUNET_PQ_result_spec_auto_from_type ("coin_blind",
      99             :                                             &coin_blind),
     100           0 :       TALER_PQ_result_spec_denom_pub ("denom_pub",
     101             :                                       &denom_pub),
     102           0 :       GNUNET_PQ_result_spec_auto_from_type ("h_blind_ev",
     103             :                                             &h_blind_ev),
     104           0 :       GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
     105             :                                             &coin.denom_pub_hash),
     106           0 :       GNUNET_PQ_result_spec_allow_null (
     107             :         GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
     108             :                                               &coin.h_age_commitment),
     109             :         &coin.no_age_commitment),
     110           0 :       TALER_PQ_result_spec_denom_sig ("denom_sig",
     111             :                                       &coin.denom_sig),
     112           0 :       TALER_PQ_RESULT_SPEC_AMOUNT ("amount",
     113             :                                    &amount),
     114             :       GNUNET_PQ_result_spec_end
     115             :     };
     116             :     enum GNUNET_GenericReturnValue ret;
     117             : 
     118           0 :     if (GNUNET_OK !=
     119           0 :         GNUNET_PQ_extract_result (result,
     120             :                                   rs,
     121             :                                   i))
     122             :     {
     123           0 :       GNUNET_break (0);
     124           0 :       psc->status = GNUNET_SYSERR;
     125           0 :       return;
     126             :     }
     127           0 :     ret = psc->cb (psc->cb_cls,
     128             :                    rowid,
     129             :                    timestamp,
     130             :                    &amount,
     131             :                    &old_coin_pub,
     132             :                    &old_denom_pub_hash,
     133             :                    &coin,
     134             :                    &denom_pub,
     135             :                    &coin_sig,
     136             :                    &coin_blind);
     137           0 :     GNUNET_PQ_cleanup_result (rs);
     138           0 :     if (GNUNET_OK != ret)
     139           0 :       break;
     140             :   }
     141             : }
     142             : 
     143             : 
     144             : enum GNUNET_DB_QueryStatus
     145           0 : TEH_PG_select_recoup_refresh_above_serial_id (
     146             :   void *cls,
     147             :   uint64_t serial_id,
     148             :   TALER_EXCHANGEDB_RecoupRefreshCallback cb,
     149             :   void *cb_cls)
     150             : {
     151           0 :   struct PostgresClosure *pg = cls;
     152           0 :   struct GNUNET_PQ_QueryParam params[] = {
     153           0 :     GNUNET_PQ_query_param_uint64 (&serial_id),
     154             :     GNUNET_PQ_query_param_end
     155             :   };
     156           0 :   struct RecoupRefreshSerialContext psc = {
     157             :     .cb = cb,
     158             :     .cb_cls = cb_cls,
     159             :     .pg = pg,
     160             :     .status = GNUNET_OK
     161             :   };
     162             :   enum GNUNET_DB_QueryStatus qs;
     163             : 
     164           0 :   PREPARE (pg,
     165             :            "select_recoup_refresh_above_serial_id",
     166             :            "SELECT"
     167             :            " rr.recoup_refresh_uuid"
     168             :            ",rr.recoup_timestamp"
     169             :            ",rr.coin_sig"
     170             :            ",rr.coin_blind"
     171             :            ",rr.amount"
     172             :            ",rrc.h_coin_ev AS h_blind_ev" // FIXME:-#9828 r.rc? r.selected_h? Old logic wanted a TALER_BlindedCoinHash, which we now need to derive (from rr.coin_blind)
     173             :            ",new_coins.age_commitment_hash"
     174             :            ",new_coins.coin_pub AS coin_pub"
     175             :            ",new_denoms.denom_pub AS denom_pub"
     176             :            ",new_denoms.denom_pub_hash"
     177             :            ",new_coins.denom_sig AS denom_sig"
     178             :            ",old_coins.coin_pub AS old_coin_pub"
     179             :            ",old_denoms.denom_pub_hash AS old_denom_pub_hash"
     180             :            " FROM recoup_refresh rr"
     181             :            " INNER JOIN refresh_revealed_coins rrc" // FIXME-#9828: no such table anymore!
     182             :            // but we have 'refresh_id" which is an FK into 'refresh'!
     183             :            "   USING (rrc_serial)"
     184             :            " INNER JOIN refresh r"
     185             :            // but we have 'refresh_id" which is an FK into 'refresh'!
     186             :            "   USING (refresh_id)"
     187             :            " INNER JOIN known_coins old_coins"
     188             :            "   ON (r.old_coin_pub = old_coins.coin_pub)"
     189             :            " INNER JOIN known_coins new_coins"
     190             :            "   ON (rr.coin_pub == new_coins.coin_pub)"
     191             :            " INNER JOIN refresh_commitments rfc"
     192             :            "   ON (rrc.melt_serial_id = rfc.melt_serial_id)"
     193             :            " INNER JOIN denominations new_denoms"
     194             :            "   ON (new_coins.denominations_serial = new_denoms.denominations_serial)"
     195             :            " INNER JOIN denominations old_denoms"
     196             :            "   ON (old_coins.denominations_serial = old_denoms.denominations_serial)"
     197             :            " WHERE recoup_refresh_uuid>=$1"
     198             :            " ORDER BY recoup_refresh_uuid ASC;");
     199           0 :   qs = GNUNET_PQ_eval_prepared_multi_select (
     200             :     pg->conn,
     201             :     "select_recoup_refresh_above_serial_id",
     202             :     params,
     203             :     &recoup_refresh_serial_helper_cb,
     204             :     &psc);
     205           0 :   if (GNUNET_OK != psc.status)
     206           0 :     return GNUNET_DB_STATUS_HARD_ERROR;
     207           0 :   return qs;
     208             : }

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