iterate_reserve_in_inconsistencies.c (6288B)
1 /* 2 This file is part of TALER 3 Copyright (C) 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 #include "taler/taler_error_codes.h" 17 #include "taler/taler_dbevents.h" 18 #include "taler/taler_pq_lib.h" 19 #include "pg_helper.h" 20 #include "auditor-database/iterate_reserve_in_inconsistencies.h" 21 22 23 /** 24 * Hard upper bound on the number of records returned by a single 25 * call, regardless of the limit requested by the client. 26 */ 27 #define MAX_RECORDS 50000 28 29 30 struct ReserveInInconsistencyContext 31 { 32 33 /** 34 * Function to call for each bad sig loss. 35 */ 36 TALER_AUDITORDB_ReserveInInconsistencyCallback cb; 37 38 /** 39 * Closure for @e cb 40 */ 41 void *cb_cls; 42 43 /** 44 * Plugin context. 45 */ 46 struct TALER_AUDITORDB_PostgresContext *pg; 47 48 /** 49 * Query status to return. 50 */ 51 enum GNUNET_DB_QueryStatus qs; 52 }; 53 54 55 /** 56 * Helper function for #TALER_AUDITORDB_iterate_reserve_in_inconsistencies(). 57 * To be called with the results of a SELECT statement 58 * that has returned @a num_results results. 59 * 60 * @param cls closure of type `struct ReserveInInconsistencyContext *` 61 * @param result the postgres result 62 * @param num_results the number of results in @a result 63 */ 64 static void 65 reserve_in_inconsistency_cb (void *cls, 66 PGresult *result, 67 unsigned int num_results) 68 { 69 struct ReserveInInconsistencyContext *dcc = cls; 70 struct TALER_AUDITORDB_PostgresContext *pg = dcc->pg; 71 72 for (unsigned int i = 0; i < num_results; i++) 73 { 74 struct TALER_AUDITORDB_ReserveInInconsistency dc; 75 struct GNUNET_PQ_ResultSpec rs[] = { 76 GNUNET_PQ_result_spec_uint64 ("row_id", 77 &dc.serial_id), 78 GNUNET_PQ_result_spec_uint64 ("bank_row_id", 79 &dc.bank_row_id), 80 TALER_PQ_RESULT_SPEC_AMOUNT ("amount_exchange_expected", 81 &dc.amount_exchange_expected), 82 TALER_PQ_RESULT_SPEC_AMOUNT ("amount_wired", 83 &dc.amount_wired), 84 GNUNET_PQ_result_spec_auto_from_type ("reserve_pub", 85 &dc.reserve_pub), 86 GNUNET_PQ_result_spec_absolute_time ("timestamp", 87 &dc.timestamp), 88 GNUNET_PQ_result_spec_string ("account", 89 &dc.account.full_payto), 90 GNUNET_PQ_result_spec_string ("diagnostic", 91 &dc.diagnostic), 92 GNUNET_PQ_result_spec_bool ("suppressed", 93 &dc.suppressed), 94 GNUNET_PQ_result_spec_end 95 }; 96 enum GNUNET_GenericReturnValue rval; 97 98 if (GNUNET_OK != 99 GNUNET_PQ_extract_result (result, 100 rs, 101 i)) 102 { 103 GNUNET_break (0); 104 dcc->qs = GNUNET_DB_STATUS_HARD_ERROR; 105 return; 106 } 107 108 dcc->qs = i + 1; 109 rval = dcc->cb (dcc->cb_cls, 110 &dc); 111 GNUNET_PQ_cleanup_result (rs); 112 if (GNUNET_OK != rval) 113 break; 114 } 115 } 116 117 118 enum GNUNET_DB_QueryStatus 119 TALER_AUDITORDB_iterate_reserve_in_inconsistencies (struct 120 TALER_AUDITORDB_PostgresContext 121 * 122 pg, 123 int64_t limit, 124 uint64_t offset, 125 bool return_suppressed, 126 TALER_AUDITORDB_ReserveInInconsistencyCallback 127 cb, 128 void *cb_cls) 129 { 130 uint64_t plimit = GNUNET_MIN ((uint64_t) MAX_RECORDS, 131 TALER_AUDITORDB_abs_limit (limit)); 132 struct GNUNET_PQ_QueryParam params[] = { 133 GNUNET_PQ_query_param_uint64 (&offset), 134 GNUNET_PQ_query_param_bool (return_suppressed), 135 GNUNET_PQ_query_param_uint64 (&plimit), 136 GNUNET_PQ_query_param_end 137 }; 138 struct ReserveInInconsistencyContext dcc = { 139 .cb = cb, 140 .cb_cls = cb_cls, 141 .pg = pg 142 }; 143 enum GNUNET_DB_QueryStatus qs; 144 145 PREPARE (pg, 146 "iterate_reserve_in_inconsistencies_inconsistency_get_desc", 147 "SELECT" 148 " row_id" 149 ",bank_row_id" 150 ",amount_exchange_expected" 151 ",amount_wired" 152 ",reserve_pub" 153 ",timestamp" 154 ",account" 155 ",diagnostic" 156 ",suppressed" 157 " FROM auditor_reserve_in_inconsistency" 158 " WHERE (row_id < $1)" 159 " AND ($2 OR suppressed is false)" 160 " ORDER BY row_id DESC" 161 " LIMIT $3" 162 ); 163 PREPARE (pg, 164 "iterate_reserve_in_inconsistencies_inconsistency_get_asc", 165 "SELECT" 166 " row_id" 167 ",bank_row_id" 168 ",amount_exchange_expected" 169 ",amount_wired" 170 ",reserve_pub" 171 ",timestamp" 172 ",account" 173 ",diagnostic" 174 ",suppressed" 175 " FROM auditor_reserve_in_inconsistency" 176 " WHERE (row_id > $1)" 177 " AND ($2 OR suppressed is false)" 178 " ORDER BY row_id ASC" 179 " LIMIT $3" 180 ); 181 qs = GNUNET_PQ_eval_prepared_multi_select ( 182 pg->conn, 183 (limit > 0) 184 ? "iterate_reserve_in_inconsistencies_inconsistency_get_asc" 185 : "iterate_reserve_in_inconsistencies_inconsistency_get_desc", 186 params, 187 &reserve_in_inconsistency_cb, 188 &dcc); 189 if (qs > 0) 190 return dcc.qs; 191 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 192 return qs; 193 }