Line data    Source code

       1             : /*
       2             :    This file is part of TALER
       3             :    Copyright (C) 2022-2025 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_get_kyc_rules.c
      18             :  * @brief Implementation of the get_kyc_rules 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_get_kyc_rules.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : 
      29             : enum GNUNET_DB_QueryStatus
      30         144 : TEH_PG_get_kyc_rules (
      31             :   void *cls,
      32             :   const struct TALER_NormalizedPaytoHashP *h_payto,
      33             :   bool *no_account_pub,
      34             :   union TALER_AccountPublicKeyP *account_pub,
      35             :   bool *no_reserve_pub,
      36             :   struct TALER_ReservePublicKeyP *reserve_pub,
      37             :   json_t **jrules)
      38             : {
      39         144 :   struct PostgresClosure *pg = cls;
      40             :   struct GNUNET_TIME_Timestamp now
      41         144 :     = GNUNET_TIME_timestamp_get ();
      42         144 :   struct GNUNET_PQ_QueryParam params[] = {
      43         144 :     GNUNET_PQ_query_param_auto_from_type (h_payto),
      44         144 :     GNUNET_PQ_query_param_timestamp (&now),
      45             :     GNUNET_PQ_query_param_end
      46             :   };
      47         144 :   struct GNUNET_PQ_ResultSpec rs[] = {
      48         144 :     GNUNET_PQ_result_spec_allow_null (
      49             :       GNUNET_PQ_result_spec_auto_from_type ("target_pub",
      50             :                                             account_pub),
      51             :       no_account_pub),
      52         144 :     GNUNET_PQ_result_spec_allow_null (
      53             :       GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
      54             :                                             reserve_pub),
      55             :       no_reserve_pub),
      56         144 :     GNUNET_PQ_result_spec_allow_null (
      57             :       TALER_PQ_result_spec_json ("jnew_rules",
      58             :                                  jrules),
      59             :       NULL),
      60             :     GNUNET_PQ_result_spec_end
      61             :   };
      62             : 
      63         144 :   *jrules = NULL;
      64         144 :   *no_account_pub = true;
      65         144 :   *no_reserve_pub = true;
      66         144 :   memset (account_pub,
      67             :           0,
      68             :           sizeof (*account_pub));
      69         144 :   memset (reserve_pub,
      70             :           0,
      71             :           sizeof (*reserve_pub));
      72         144 :   PREPARE (pg,
      73             :            "get_kyc_rules",
      74             :            "SELECT"
      75             :            "  kt.target_pub"
      76             :            " ,lo.jnew_rules"
      77             :            " ,ri.reserve_pub"
      78             :            "  FROM kyc_targets kt"
      79             :            /* This may result in multiple matches */
      80             :            "  JOIN wire_targets wt"
      81             :            "    USING (h_normalized_payto)"
      82             :            /* zero or more matches, reserve_pub will be NULL if no match */
      83             :            "  LEFT JOIN reserves_in ri"
      84             :            "    ON (ri.wire_source_h_payto = wt.wire_target_h_payto)"
      85             :            /* zero or more matches, jnew_rules will be NULL if no match */
      86             :            "  LEFT JOIN legitimization_outcomes lo"
      87             :            "    ON (lo.h_payto = kt.h_normalized_payto)"
      88             :            " WHERE kt.h_normalized_payto=$1"
      89             :            "   AND COALESCE(lo.expiration_time >= $2, TRUE)"
      90             :            "   AND COALESCE(lo.is_active, TRUE)"
      91             :            /* If multiple reserves_in match, we pick the latest one */
      92             :            " ORDER BY ri.execution_date DESC"
      93             :            " LIMIT 1;");
      94         144 :   return GNUNET_PQ_eval_prepared_singleton_select (
      95             :     pg->conn,
      96             :     "get_kyc_rules",
      97             :     params,
      98             :     rs);
      99             : }
     100             : 
     101             : 
     102             : enum GNUNET_DB_QueryStatus
     103           0 : TEH_PG_get_kyc_rules2 (
     104             :   void *cls,
     105             :   const struct TALER_NormalizedPaytoHashP *h_payto,
     106             :   json_t **jrules)
     107             : {
     108           0 :   struct PostgresClosure *pg = cls;
     109             :   struct GNUNET_TIME_Timestamp now
     110           0 :     = GNUNET_TIME_timestamp_get ();
     111           0 :   struct GNUNET_PQ_QueryParam params[] = {
     112           0 :     GNUNET_PQ_query_param_auto_from_type (h_payto),
     113           0 :     GNUNET_PQ_query_param_timestamp (&now),
     114             :     GNUNET_PQ_query_param_end
     115             :   };
     116           0 :   struct GNUNET_PQ_ResultSpec rs[] = {
     117           0 :     GNUNET_PQ_result_spec_allow_null (
     118             :       TALER_PQ_result_spec_json ("jnew_rules",
     119             :                                  jrules),
     120             :       NULL),
     121             :     GNUNET_PQ_result_spec_end
     122             :   };
     123             : 
     124           0 :   *jrules = NULL;
     125           0 :   PREPARE (pg,
     126             :            "get_kyc_rules2",
     127             :            "SELECT"
     128             :            "  jnew_rules"
     129             :            "  FROM legitimization_outcomes"
     130             :            " WHERE h_payto=$1"
     131             :            "   AND expiration_time >= $2"
     132             :            "   AND is_active"
     133             :            " ORDER BY expiration_time DESC"
     134             :            " LIMIT 1;");
     135           0 :   return GNUNET_PQ_eval_prepared_singleton_select (
     136             :     pg->conn,
     137             :     "get_kyc_rules2",
     138             :     params,
     139             :     rs);
     140             : }