get_exchange_signkeys.c (5550B)
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 17 18 #include "taler/taler_pq_lib.h" 19 #include "pg_helper.h" 20 21 #include "auditor-database/get_exchange_signkeys.h" 22 23 24 struct ExchangeSignkeysContext 25 { 26 27 /** 28 * Function to call for each bad sig loss. 29 */ 30 TALER_AUDITORDB_ExchangeSignkeysCallback cb; 31 32 /** 33 * Closure for @e cb 34 */ 35 void *cb_cls; 36 37 /** 38 * Plugin context. 39 */ 40 struct TALER_AUDITORDB_PostgresContext *pg; 41 42 /** 43 * Query status to return. 44 */ 45 enum GNUNET_DB_QueryStatus qs; 46 }; 47 48 49 /** 50 * Helper function for #TALER_AUDITORDB_get_exchange_signkeys(). 51 * To be called with the results of a SELECT statement 52 * that has returned @a num_results results. 53 * 54 * @param cls closure of type `struct ExchangeSignkeysContext *` 55 * @param result the postgres result 56 * @param num_results the number of results in @a result 57 */ 58 static void 59 exchange_signkeys_cb (void *cls, 60 PGresult *result, 61 unsigned int num_results) 62 { 63 struct ExchangeSignkeysContext *dcc = cls; 64 // struct TALER_AUDITORDB_PostgresContext *pg = dcc->pg; 65 66 for (unsigned int i = 0; i < num_results; i++) 67 { 68 uint64_t serial_id; 69 70 struct TALER_AUDITORDB_ExchangeSignkeys dc; 71 72 struct GNUNET_PQ_ResultSpec rs[] = { 73 74 GNUNET_PQ_result_spec_uint64 ("row_id", &serial_id), 75 76 GNUNET_PQ_result_spec_auto_from_type ("exchange_pub", &dc.exchange_pub), 77 GNUNET_PQ_result_spec_auto_from_type ("master_sig", &dc.master_sig), 78 GNUNET_PQ_result_spec_absolute_time ("ep_valid_from", &dc.ep_valid_from), 79 GNUNET_PQ_result_spec_absolute_time ("ep_expire_sign", 80 &dc.ep_expire_sign), 81 GNUNET_PQ_result_spec_absolute_time ("ep_expire_legal", 82 &dc.ep_expire_legal), 83 GNUNET_PQ_result_spec_bool ("suppressed", &dc.suppressed), 84 85 86 GNUNET_PQ_result_spec_end 87 }; 88 enum GNUNET_GenericReturnValue rval; 89 90 if (GNUNET_OK != 91 GNUNET_PQ_extract_result (result, 92 rs, 93 i)) 94 { 95 GNUNET_break (0); 96 dcc->qs = GNUNET_DB_STATUS_HARD_ERROR; 97 return; 98 } 99 100 dcc->qs = i + 1; 101 102 rval = dcc->cb (dcc->cb_cls, 103 serial_id, 104 &dc); 105 GNUNET_PQ_cleanup_result (rs); 106 if (GNUNET_OK != rval) 107 break; 108 } 109 } 110 111 112 enum GNUNET_DB_QueryStatus 113 TALER_AUDITORDB_get_exchange_signkeys (struct TALER_AUDITORDB_PostgresContext * 114 pg, 115 int64_t limit, 116 uint64_t offset, 117 bool return_suppressed, // maybe not needed 118 TALER_AUDITORDB_ExchangeSignkeysCallback 119 cb, 120 void *cb_cls) 121 { 122 123 uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit); 124 struct GNUNET_PQ_QueryParam params[] = { 125 GNUNET_PQ_query_param_uint64 (&offset), 126 GNUNET_PQ_query_param_bool (return_suppressed), 127 GNUNET_PQ_query_param_uint64 (&plimit), 128 GNUNET_PQ_query_param_end 129 }; 130 struct ExchangeSignkeysContext dcc = { 131 .cb = cb, 132 .cb_cls = cb_cls, 133 .pg = pg 134 }; 135 enum GNUNET_DB_QueryStatus qs; 136 137 PREPARE (pg, 138 "auditor_exchange_signkeys_get_desc", 139 "SELECT" 140 " row_id," 141 " exchange_pub," 142 " master_sig," 143 " ep_valid_from," 144 " ep_expire_sign," 145 " ep_expire_legal," 146 " suppressed" 147 " FROM auditor_exchange_signkeys" 148 " WHERE (row_id < $1)" 149 " AND ($2 OR suppressed is false)" 150 " ORDER BY row_id DESC" 151 " LIMIT $3" 152 ); 153 PREPARE (pg, 154 "auditor_exchange_signkeys_get_asc", 155 "SELECT" 156 " row_id," 157 " exchange_pub," 158 " master_sig," 159 " ep_valid_from," 160 " ep_expire_sign," 161 " ep_expire_legal," 162 " suppressed" 163 " FROM auditor_exchange_signkeys" 164 " WHERE (row_id > $1)" 165 " AND ($2 OR suppressed is false)" 166 " ORDER BY row_id ASC" 167 " LIMIT $3" 168 ); 169 qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn, 170 (limit > 0) 171 ? 172 "auditor_exchange_signkeys_get_asc" 173 : 174 "auditor_exchange_signkeys_get_desc", 175 params, 176 &exchange_signkeys_cb, 177 &dcc); 178 179 if (qs > 0) 180 return dcc.qs; 181 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 182 return qs; 183 }