iterate_aml_staff_above_serial_id.c (5250B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2026 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 src/exchangedb/iterate_aml_staff_above_serial_id.c 18 * @brief Implementation of the iterate_aml_staff_above_serial_id function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "taler/taler_pq_lib.h" 22 #include "helper.h" 23 #include "exchange-database/iterate_aml_staff_above_serial_id.h" 24 25 26 /** 27 * Closure for #aml_staff_cb(). 28 */ 29 struct AmlStaffContext 30 { 31 /** 32 * Function to call for each status change. 33 */ 34 TALER_EXCHANGEDB_AmlStaffCallback cb; 35 36 /** 37 * Closure for @e cb. 38 */ 39 void *cb_cls; 40 41 /** 42 * Query status to return. 43 */ 44 enum GNUNET_DB_QueryStatus qs; 45 }; 46 47 48 /** 49 * Helper function for 50 * #TALER_EXCHANGEDB_iterate_aml_staff_above_serial_id(). 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 AmlStaffContext *` 55 * @param result the postgres result 56 * @param num_results the number of results in @a result 57 */ 58 static void 59 aml_staff_cb (void *cls, 60 PGresult *result, 61 unsigned int num_results) 62 { 63 struct AmlStaffContext *asc = cls; 64 65 for (unsigned int i = 0; i < num_results; i++) 66 { 67 uint64_t rowid; 68 struct TALER_AmlOfficerPublicKeyP decider_pub; 69 struct TALER_MasterSignatureP master_sig; 70 char *decider_name = NULL; 71 bool is_active; 72 bool read_only; 73 struct GNUNET_TIME_Timestamp last_change; 74 bool no_master_sig; 75 struct GNUNET_PQ_ResultSpec rs[] = { 76 GNUNET_PQ_result_spec_uint64 ("aml_staff_uuid", 77 &rowid), 78 GNUNET_PQ_result_spec_auto_from_type ("decider_pub", 79 &decider_pub), 80 /* the column has no NOT NULL constraint, and a row without a 81 signature is exactly what the auditor has to complain about */ 82 GNUNET_PQ_result_spec_allow_null ( 83 GNUNET_PQ_result_spec_auto_from_type ("master_sig", 84 &master_sig), 85 &no_master_sig), 86 GNUNET_PQ_result_spec_string ("decider_name", 87 &decider_name), 88 GNUNET_PQ_result_spec_bool ("is_active", 89 &is_active), 90 GNUNET_PQ_result_spec_bool ("read_only", 91 &read_only), 92 GNUNET_PQ_result_spec_timestamp ("last_change", 93 &last_change), 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 asc->qs = GNUNET_DB_STATUS_HARD_ERROR; 105 return; 106 } 107 asc->qs = i + 1; 108 rval = asc->cb (asc->cb_cls, 109 rowid, 110 &decider_pub, 111 no_master_sig ? NULL : &master_sig, 112 decider_name, 113 is_active, 114 read_only, 115 last_change); 116 GNUNET_PQ_cleanup_result (rs); 117 if (GNUNET_OK != rval) 118 break; 119 } 120 } 121 122 123 enum GNUNET_DB_QueryStatus 124 TALER_EXCHANGEDB_iterate_aml_staff_above_serial_id ( 125 struct TALER_EXCHANGEDB_PostgresContext *pg, 126 uint64_t serial_id, 127 TALER_EXCHANGEDB_AmlStaffCallback cb, 128 TALER_EXCHANGEDB_AML_STAFF_RESULT_CLOSURE *cb_cls) 129 { 130 struct GNUNET_PQ_QueryParam params[] = { 131 GNUNET_PQ_query_param_uint64 (&serial_id), 132 GNUNET_PQ_query_param_end 133 }; 134 struct AmlStaffContext asc = { 135 .cb = cb, 136 .cb_cls = cb_cls 137 }; 138 enum GNUNET_DB_QueryStatus qs; 139 140 /* Ordered by the serial ID and not by last_change: the caller is told 141 about the changes in the order the exchange recorded them, which is 142 what makes a status backdated after the fact stand out. */ 143 PREPARE (pg, 144 "iterate_aml_staff_above_serial_id", 145 "SELECT" 146 " aml_staff_uuid" 147 ",decider_pub" 148 ",master_sig" 149 ",decider_name" 150 ",is_active" 151 ",read_only" 152 ",last_change" 153 " FROM aml_staff" 154 " WHERE aml_staff_uuid>=$1" 155 " ORDER BY aml_staff_uuid ASC;"); 156 qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn, 157 "iterate_aml_staff_above_serial_id", 158 params, 159 &aml_staff_cb, 160 &asc); 161 if (qs > 0) 162 return asc.qs; 163 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 164 return qs; 165 }