pg_get_exchange_signkeys.c (5340B)
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/platform.h" 19 #include "taler/taler_error_codes.h" 20 #include "taler/taler_dbevents.h" 21 #include "taler/taler_pq_lib.h" 22 #include "pg_helper.h" 23 24 #include "pg_get_exchange_signkeys.h" 25 26 27 struct ExchangeSignkeysContext 28 { 29 30 /** 31 * Function to call for each bad sig loss. 32 */ 33 TALER_AUDITORDB_ExchangeSignkeysCallback cb; 34 35 /** 36 * Closure for @e cb 37 */ 38 void *cb_cls; 39 40 /** 41 * Plugin context. 42 */ 43 struct PostgresClosure *pg; 44 45 /** 46 * Query status to return. 47 */ 48 enum GNUNET_DB_QueryStatus qs; 49 }; 50 51 52 /** 53 * Helper function for #TAH_PG_get_exchange_signkeys(). 54 * To be called with the results of a SELECT statement 55 * that has returned @a num_results results. 56 * 57 * @param cls closure of type `struct ExchangeSignkeysContext *` 58 * @param result the postgres result 59 * @param num_results the number of results in @a result 60 */ 61 static void 62 exchange_signkeys_cb (void *cls, 63 PGresult *result, 64 unsigned int num_results) 65 { 66 struct ExchangeSignkeysContext *dcc = cls; 67 // struct PostgresClosure *pg = dcc->pg; 68 69 for (unsigned int i = 0; i < num_results; i++) 70 { 71 uint64_t serial_id; 72 73 struct TALER_AUDITORDB_ExchangeSignkeys dc; 74 75 struct GNUNET_PQ_ResultSpec rs[] = { 76 77 GNUNET_PQ_result_spec_uint64 ("row_id", &serial_id), 78 79 GNUNET_PQ_result_spec_auto_from_type ("exchange_pub", &dc.exchange_pub), 80 GNUNET_PQ_result_spec_auto_from_type ("master_sig", &dc.master_sig), 81 GNUNET_PQ_result_spec_absolute_time ("ep_valid_from", &dc.ep_valid_from), 82 GNUNET_PQ_result_spec_absolute_time ("ep_expire_sign", 83 &dc.ep_expire_sign), 84 GNUNET_PQ_result_spec_absolute_time ("ep_expire_legal", 85 &dc.ep_expire_legal), 86 GNUNET_PQ_result_spec_bool ("suppressed", &dc.suppressed), 87 88 89 GNUNET_PQ_result_spec_end 90 }; 91 enum GNUNET_GenericReturnValue rval; 92 93 if (GNUNET_OK != 94 GNUNET_PQ_extract_result (result, 95 rs, 96 i)) 97 { 98 GNUNET_break (0); 99 dcc->qs = GNUNET_DB_STATUS_HARD_ERROR; 100 return; 101 } 102 103 dcc->qs = i + 1; 104 105 rval = dcc->cb (dcc->cb_cls, 106 serial_id, 107 &dc); 108 GNUNET_PQ_cleanup_result (rs); 109 if (GNUNET_OK != rval) 110 break; 111 } 112 } 113 114 115 enum GNUNET_DB_QueryStatus 116 TAH_PG_get_exchange_signkeys ( 117 void *cls, 118 int64_t limit, 119 uint64_t offset, 120 bool return_suppressed, // maybe not needed 121 TALER_AUDITORDB_ExchangeSignkeysCallback cb, 122 void *cb_cls) 123 { 124 125 uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit); 126 127 struct PostgresClosure *pg = cls; 128 struct GNUNET_PQ_QueryParam params[] = { 129 GNUNET_PQ_query_param_uint64 (&offset), 130 GNUNET_PQ_query_param_bool (return_suppressed), 131 GNUNET_PQ_query_param_uint64 (&plimit), 132 GNUNET_PQ_query_param_end 133 }; 134 struct ExchangeSignkeysContext dcc = { 135 .cb = cb, 136 .cb_cls = cb_cls, 137 .pg = pg 138 }; 139 enum GNUNET_DB_QueryStatus qs; 140 141 PREPARE (pg, 142 "auditor_exchange_signkeys_get_desc", 143 "SELECT" 144 " row_id," 145 " exchange_pub," 146 " master_sig," 147 " ep_valid_from," 148 " ep_expire_sign," 149 " ep_expire_legal," 150 " suppressed" 151 " FROM auditor_exchange_signkeys" 152 " WHERE (row_id < $1)" 153 " AND ($2 OR suppressed is false)" 154 " ORDER BY row_id DESC" 155 " LIMIT $3" 156 ); 157 PREPARE (pg, 158 "auditor_exchange_signkeys_get_asc", 159 "SELECT" 160 " row_id," 161 " exchange_pub," 162 " master_sig," 163 " ep_valid_from," 164 " ep_expire_sign," 165 " ep_expire_legal," 166 " suppressed" 167 " FROM auditor_exchange_signkeys" 168 " WHERE (row_id > $1)" 169 " AND ($2 OR suppressed is false)" 170 " ORDER BY row_id ASC" 171 " LIMIT $3" 172 ); 173 qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn, 174 (limit > 0) 175 ? 176 "auditor_exchange_signkeys_get_asc" 177 : 178 "auditor_exchange_signkeys_get_desc", 179 params, 180 &exchange_signkeys_cb, 181 &dcc); 182 183 if (qs > 0) 184 return dcc.qs; 185 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 186 return qs; 187 }