pg_select_withdrawals_above_serial_id.c (6764B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2022 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_select_withdrawals_above_serial_id.c 18 * @brief Implementation of the select_withdrawals_above_serial_id function for Postgres 19 * @author Christian Grothoff 20 * @author Özgür Kesim 21 */ 22 #include "taler/platform.h" 23 #include "taler/taler_error_codes.h" 24 #include "taler/taler_dbevents.h" 25 #include "taler/taler_pq_lib.h" 26 #include "pg_select_withdrawals_above_serial_id.h" 27 #include "pg_helper.h" 28 29 /** 30 * Closure for #withdraw_serial_helper_cb(). 31 */ 32 struct WithdrawSerialContext 33 { 34 35 /** 36 * Callback to call. 37 */ 38 TALER_EXCHANGEDB_WithdrawCallback cb; 39 40 /** 41 * Closure for @e cb. 42 */ 43 void *cb_cls; 44 45 /** 46 * Plugin context. 47 */ 48 struct PostgresClosure *pg; 49 50 /** 51 * Status code, set to #GNUNET_SYSERR on hard errors. 52 */ 53 enum GNUNET_GenericReturnValue status; 54 }; 55 56 57 /** 58 * Helper function to be called with the results of a SELECT statement 59 * that has returned @a num_results results. 60 * 61 * @param cls closure of type `struct WithdrawSerialContext` 62 * @param result the postgres result 63 * @param num_results the number of results in @a result 64 */ 65 static void 66 withdraw_serial_helper_cb (void *cls, 67 PGresult *result, 68 unsigned int num_results) 69 { 70 struct WithdrawSerialContext *rosc = cls; 71 struct PostgresClosure *pg = rosc->pg; 72 73 for (unsigned int i = 0; i<num_results; i++) 74 { 75 uint64_t rowid; 76 struct TALER_HashBlindedPlanchetsP h_planchets; 77 struct GNUNET_TIME_Timestamp execution_date; 78 struct TALER_Amount amount_with_fee; 79 struct TALER_ReservePublicKeyP reserve_pub; 80 struct TALER_ReserveSignatureP reserve_sig; 81 uint16_t max_age; 82 bool no_max_age; 83 uint16_t noreveal_index; 84 bool no_noreveal_index; 85 struct TALER_HashBlindedPlanchetsP selected_h; 86 bool no_selected_h; 87 struct TALER_BlindingMasterSeedP blinding_seed; 88 bool no_blinding_seed; 89 size_t num_denom_serials; 90 uint64_t *denom_serials = NULL; 91 struct GNUNET_PQ_ResultSpec rs[] = { 92 GNUNET_PQ_result_spec_uint64 ("withdraw_id", 93 &rowid), 94 GNUNET_PQ_result_spec_auto_from_type ("planchets_h", 95 &h_planchets), 96 GNUNET_PQ_result_spec_timestamp ("execution_date", 97 &execution_date), 98 TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee", 99 &amount_with_fee), 100 GNUNET_PQ_result_spec_auto_from_type ("reserve_pub", 101 &reserve_pub), 102 GNUNET_PQ_result_spec_auto_from_type ("reserve_sig", 103 &reserve_sig), 104 GNUNET_PQ_result_spec_allow_null ( 105 GNUNET_PQ_result_spec_uint16 ("max_age", 106 &max_age), 107 &no_max_age), 108 GNUNET_PQ_result_spec_allow_null ( 109 GNUNET_PQ_result_spec_uint16 ("noreveal_index", 110 &noreveal_index), 111 &no_noreveal_index), 112 GNUNET_PQ_result_spec_allow_null ( 113 GNUNET_PQ_result_spec_auto_from_type ( 114 "selected_h", 115 &selected_h), 116 &no_selected_h), 117 GNUNET_PQ_result_spec_allow_null ( 118 GNUNET_PQ_result_spec_auto_from_type ( 119 "blinding_seed", 120 &blinding_seed), 121 &no_blinding_seed), 122 GNUNET_PQ_result_spec_array_uint64 ( 123 pg->conn, 124 "denom_serials", 125 &num_denom_serials, 126 &denom_serials), 127 GNUNET_PQ_result_spec_end 128 }; 129 enum GNUNET_GenericReturnValue ret; 130 131 if (GNUNET_OK != 132 GNUNET_PQ_extract_result (result, 133 rs, 134 i)) 135 { 136 GNUNET_break (0); 137 rosc->status = GNUNET_SYSERR; 138 GNUNET_PQ_cleanup_result (rs); 139 return; 140 } 141 if ((! no_max_age) && 142 ((255 <= noreveal_index) || (255 <= max_age))) 143 { 144 GNUNET_break (0); 145 rosc->status = GNUNET_SYSERR; 146 GNUNET_PQ_cleanup_result (rs); 147 return; 148 } 149 ret = rosc->cb (rosc->cb_cls, 150 rowid, 151 num_denom_serials, 152 denom_serials, 153 no_selected_h ? NULL : &selected_h, 154 &h_planchets, 155 no_blinding_seed ? NULL : &blinding_seed, 156 ! no_max_age, 157 (uint8_t) max_age, 158 (uint8_t) noreveal_index, 159 &reserve_pub, 160 &reserve_sig, 161 execution_date, 162 &amount_with_fee); 163 GNUNET_PQ_cleanup_result (rs); 164 if (GNUNET_OK != ret) 165 break; 166 } 167 } 168 169 170 enum GNUNET_DB_QueryStatus 171 TEH_PG_select_withdrawals_above_serial_id ( 172 void *cls, 173 uint64_t serial_id, 174 TALER_EXCHANGEDB_WithdrawCallback cb, 175 void *cb_cls) 176 { 177 struct PostgresClosure *pg = cls; 178 struct GNUNET_PQ_QueryParam params[] = { 179 GNUNET_PQ_query_param_uint64 (&serial_id), 180 GNUNET_PQ_query_param_end 181 }; 182 struct WithdrawSerialContext rosc = { 183 .cb = cb, 184 .cb_cls = cb_cls, 185 .pg = pg, 186 .status = GNUNET_OK 187 }; 188 enum GNUNET_DB_QueryStatus qs; 189 190 /* Fetch deposits with rowid '\geq' the given parameter */ 191 PREPARE (pg, 192 "audit_get_withdraw_incr", 193 "SELECT" 194 " withdraw_id" 195 ",planchets_h" 196 ",execution_date" 197 ",amount_with_fee" 198 ",reserve_pub" 199 ",reserve_sig" 200 ",max_age" 201 ",noreveal_index" 202 ",selected_h" 203 ",blinding_seed" 204 ",denom_serials" 205 " FROM withdraw" 206 " WHERE withdraw_id>=$1" 207 " ORDER BY withdraw_id ASC;"); 208 qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn, 209 "audit_get_withdraw_incr", 210 params, 211 &withdraw_serial_helper_cb, 212 &rosc); 213 if (GNUNET_OK != rosc.status) 214 return GNUNET_DB_STATUS_HARD_ERROR; 215 return qs; 216 }