pg_select_all_kyc_attributes.c (5085B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2025 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_all_kyc_attributes.c 18 * @brief Implementation of the select_all_kyc_attributes function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "taler/taler_pq_lib.h" 22 #include "taler/exchange-database/select_all_kyc_attributes.h" 23 #include "helper.h" 24 25 /** 26 * Closure for #get_all_attributes_cb(). 27 */ 28 struct GetAttributesContext 29 { 30 /** 31 * Function to call per result. 32 */ 33 TALER_EXCHANGEDB_AllAttributesCallback cb; 34 35 /** 36 * Closure for @e cb. 37 */ 38 void *cb_cls; 39 40 /** 41 * Plugin context. 42 */ 43 struct TALER_EXCHANGEDB_PostgresContext *pg; 44 45 /** 46 * Flag set to #GNUNET_OK as long as everything is fine. 47 */ 48 enum GNUNET_GenericReturnValue status; 49 50 }; 51 52 /** 53 * Invoke the callback for each result. 54 * 55 * @param cls a `struct GetAttributesContext *` 56 * @param result SQL result 57 * @param num_results number of rows in @a result 58 */ 59 static void 60 get_attributes_cb (void *cls, 61 PGresult *result, 62 unsigned int num_results) 63 { 64 struct GetAttributesContext *ctx = cls; 65 66 for (unsigned int i = 0; i < num_results; i++) 67 { 68 uint64_t rowid; 69 struct GNUNET_TIME_Timestamp collection_time; 70 struct GNUNET_TIME_Timestamp expiration_time; 71 struct TALER_NormalizedPaytoHashP h_payto; 72 json_t *properties = NULL; 73 size_t enc_attributes_size; 74 void *enc_attributes; 75 char *provider; 76 struct GNUNET_PQ_ResultSpec rs[] = { 77 GNUNET_PQ_result_spec_string ("provider_name", 78 &provider), 79 GNUNET_PQ_result_spec_uint64 ("kyc_attributes_serial_id", 80 &rowid), 81 GNUNET_PQ_result_spec_allow_null ( 82 TALER_PQ_result_spec_json ("jproperties", 83 &properties), 84 NULL), 85 GNUNET_PQ_result_spec_timestamp ("collection_time", 86 &collection_time), 87 GNUNET_PQ_result_spec_timestamp ("expiration_time", 88 &expiration_time), 89 GNUNET_PQ_result_spec_auto_from_type ("h_payto", 90 &h_payto), 91 GNUNET_PQ_result_spec_variable_size ("encrypted_attributes", 92 &enc_attributes, 93 &enc_attributes_size), 94 GNUNET_PQ_result_spec_end 95 }; 96 97 if (GNUNET_OK != 98 GNUNET_PQ_extract_result (result, 99 rs, 100 i)) 101 { 102 GNUNET_break (0); 103 ctx->status = GNUNET_SYSERR; 104 return; 105 } 106 ctx->cb (ctx->cb_cls, 107 rowid, 108 &h_payto, 109 provider, 110 collection_time, 111 expiration_time, 112 properties, 113 enc_attributes_size, 114 enc_attributes); 115 GNUNET_PQ_cleanup_result (rs); 116 } 117 } 118 119 120 enum GNUNET_DB_QueryStatus 121 TALER_EXCHANGEDB_select_all_kyc_attributes ( 122 struct TALER_EXCHANGEDB_PostgresContext *pg, 123 uint64_t min_row_id, 124 TALER_EXCHANGEDB_AllAttributesCallback cb, 125 void *cb_cls) 126 { 127 struct GNUNET_PQ_QueryParam params[] = { 128 GNUNET_PQ_query_param_uint64 (&min_row_id), 129 GNUNET_PQ_query_param_end 130 }; 131 struct GetAttributesContext ctx = { 132 .cb = cb, 133 .cb_cls = cb_cls, 134 .pg = pg, 135 .status = GNUNET_OK 136 }; 137 enum GNUNET_DB_QueryStatus qs; 138 139 PREPARE (pg, 140 "select_all_kyc_attributes", 141 "SELECT " 142 " lp.provider_name" 143 ",ka.h_payto" 144 ",ka.kyc_attributes_serial_id" 145 ",lo.jproperties::TEXT" 146 ",ka.collection_time" 147 ",ka.expiration_time" 148 ",ka.encrypted_attributes" 149 " FROM kyc_attributes ka" 150 " JOIN legitimization_processes lp" 151 " ON (ka.legitimization_serial = lp.legitimization_process_serial_id)" 152 " LEFT JOIN legitimization_outcomes lo" 153 " ON (ka.h_payto = lo.h_payto)" 154 /* **IF** we joined with 'lo', the lo must be active */ 155 " WHERE COALESCE(lo.is_active,TRUE)" 156 " AND kyc_attributes_serial_id > $1" 157 " ORDER BY kyc_attributes_serial_id ASC" 158 ); 159 qs = GNUNET_PQ_eval_prepared_multi_select ( 160 pg->conn, 161 "select_all_kyc_attributes", 162 params, 163 &get_attributes_cb, 164 &ctx); 165 if (GNUNET_OK != ctx.status) 166 return GNUNET_DB_STATUS_HARD_ERROR; 167 return qs; 168 }