LCOV - code coverage report
Current view: top level - exchangedb - pg_lookup_wire_transfer.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 28 32 87.5 %
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) 2022-2024 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_lookup_wire_transfer.c
      18             :  * @brief Implementation of the lookup_wire_transfer 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_lookup_wire_transfer.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : /**
      29             :  * Closure for #handle_wt_result.
      30             :  */
      31             : struct WireTransferResultContext
      32             : {
      33             :   /**
      34             :    * Function to call on each result.
      35             :    */
      36             :   TALER_EXCHANGEDB_AggregationDataCallback cb;
      37             : 
      38             :   /**
      39             :    * Closure for @e cb.
      40             :    */
      41             :   void *cb_cls;
      42             : 
      43             :   /**
      44             :    * Plugin context.
      45             :    */
      46             :   struct PostgresClosure *pg;
      47             : 
      48             :   /**
      49             :    * Set to #GNUNET_SYSERR on serious errors.
      50             :    */
      51             :   enum GNUNET_GenericReturnValue status;
      52             : };
      53             : 
      54             : 
      55             : /**
      56             :  * Function to be called with the results of a SELECT statement
      57             :  * that has returned @a num_results results.  Helper function
      58             :  * for #TEH_PG_lookup_wire_transfer().
      59             :  *
      60             :  * @param cls closure of type `struct WireTransferResultContext *`
      61             :  * @param result the postgres result
      62             :  * @param num_results the number of results in @a result
      63             :  */
      64             : static void
      65          20 : handle_wt_result (void *cls,
      66             :                   PGresult *result,
      67             :                   unsigned int num_results)
      68             : {
      69          20 :   struct WireTransferResultContext *ctx = cls;
      70          20 :   struct PostgresClosure *pg = ctx->pg;
      71             : 
      72          79 :   for (unsigned int i = 0; i<num_results; i++)
      73             :   {
      74             :     uint64_t rowid;
      75             :     struct TALER_PrivateContractHashP h_contract_terms;
      76             :     struct TALER_CoinSpendPublicKeyP coin_pub;
      77             :     struct TALER_FullPaytoHashP h_payto;
      78             :     struct TALER_MerchantPublicKeyP merchant_pub;
      79             :     struct GNUNET_TIME_Timestamp exec_time;
      80             :     struct TALER_Amount amount_with_fee;
      81             :     struct TALER_Amount deposit_fee;
      82             :     struct TALER_DenominationPublicKey denom_pub;
      83             :     struct TALER_FullPayto payto_uri;
      84          59 :     struct GNUNET_PQ_ResultSpec rs[] = {
      85          59 :       GNUNET_PQ_result_spec_uint64 ("aggregation_serial_id",
      86             :                                     &rowid),
      87          59 :       GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
      88             :                                             &h_contract_terms),
      89          59 :       GNUNET_PQ_result_spec_string ("payto_uri",
      90             :                                     &payto_uri.full_payto),
      91          59 :       GNUNET_PQ_result_spec_auto_from_type ("wire_target_h_payto",
      92             :                                             &h_payto),
      93          59 :       TALER_PQ_result_spec_denom_pub ("denom_pub",
      94             :                                       &denom_pub),
      95          59 :       GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
      96             :                                             &coin_pub),
      97          59 :       GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
      98             :                                             &merchant_pub),
      99          59 :       GNUNET_PQ_result_spec_timestamp ("execution_date",
     100             :                                        &exec_time),
     101          59 :       TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
     102             :                                    &amount_with_fee),
     103          59 :       TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
     104             :                                    &deposit_fee),
     105             :       GNUNET_PQ_result_spec_end
     106             :     };
     107             : 
     108          59 :     if (GNUNET_OK !=
     109          59 :         GNUNET_PQ_extract_result (result,
     110             :                                   rs,
     111             :                                   i))
     112             :     {
     113           0 :       GNUNET_break (0);
     114           0 :       ctx->status = GNUNET_SYSERR;
     115           0 :       return;
     116             :     }
     117          59 :     ctx->cb (ctx->cb_cls,
     118             :              rowid,
     119             :              &merchant_pub,
     120             :              payto_uri,
     121             :              &h_payto,
     122             :              exec_time,
     123             :              &h_contract_terms,
     124             :              &denom_pub,
     125             :              &coin_pub,
     126             :              &amount_with_fee,
     127             :              &deposit_fee);
     128          59 :     GNUNET_PQ_cleanup_result (rs);
     129             :   }
     130             : }
     131             : 
     132             : 
     133             : enum GNUNET_DB_QueryStatus
     134          20 : TEH_PG_lookup_wire_transfer (
     135             :   void *cls,
     136             :   const struct TALER_WireTransferIdentifierRawP *wtid,
     137             :   TALER_EXCHANGEDB_AggregationDataCallback cb,
     138             :   void *cb_cls)
     139             : {
     140          20 :   struct PostgresClosure *pg = cls;
     141          20 :   struct GNUNET_PQ_QueryParam params[] = {
     142          20 :     GNUNET_PQ_query_param_auto_from_type (wtid),
     143             :     GNUNET_PQ_query_param_end
     144             :   };
     145          20 :   struct WireTransferResultContext ctx = {
     146             :     .cb = cb,
     147             :     .cb_cls = cb_cls,
     148             :     .pg = pg,
     149             :     .status = GNUNET_OK
     150             :   };
     151             :   enum GNUNET_DB_QueryStatus qs;
     152             : 
     153          20 :   PREPARE (pg,
     154             :            "lookup_transactions",
     155             :            "SELECT"
     156             :            " aggregation_serial_id"
     157             :            ",bdep.h_contract_terms"
     158             :            ",payto_uri"
     159             :            ",wt.wire_target_h_payto"
     160             :            ",kc.coin_pub"
     161             :            ",bdep.merchant_pub"
     162             :            ",wire_out.execution_date"
     163             :            ",cdep.amount_with_fee"
     164             :            ",denom.fee_deposit"
     165             :            ",denom.denom_pub"
     166             :            " FROM aggregation_tracking"
     167             :            "    JOIN batch_deposits bdep"
     168             :            "      USING (batch_deposit_serial_id)"
     169             :            "    JOIN coin_deposits cdep"
     170             :            "      USING (batch_deposit_serial_id)"
     171             :            "    JOIN wire_targets wt"
     172             :            "      USING (wire_target_h_payto)"
     173             :            "    JOIN known_coins kc"
     174             :            "      USING (coin_pub)"
     175             :            "    JOIN denominations denom"
     176             :            "      USING (denominations_serial)"
     177             :            "    JOIN wire_out"
     178             :            "      USING (wtid_raw)"
     179             :            " WHERE wtid_raw=$1;");
     180          20 :   qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
     181             :                                              "lookup_transactions",
     182             :                                              params,
     183             :                                              &handle_wt_result,
     184             :                                              &ctx);
     185          20 :   if (GNUNET_OK != ctx.status)
     186           0 :     return GNUNET_DB_STATUS_HARD_ERROR;
     187          20 :   return qs;
     188             : }

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