pg_get_wire_accounts.c (5610B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2022, 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 * @file exchangedb/pg_get_wire_accounts.c 18 * @brief Implementation of the get_wire_accounts function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "taler/platform.h" 22 #include "taler/taler_error_codes.h" 23 #include "taler/taler_dbevents.h" 24 #include "taler/taler_pq_lib.h" 25 #include "pg_get_wire_accounts.h" 26 #include "pg_helper.h" 27 28 29 /** 30 * Closure for #get_wire_accounts_cb(). 31 */ 32 struct GetWireAccountsContext 33 { 34 /** 35 * Function to call per result. 36 */ 37 TALER_EXCHANGEDB_WireAccountCallback cb; 38 39 /** 40 * Closure for @e cb. 41 */ 42 void *cb_cls; 43 44 /** 45 * Flag set to #GNUNET_OK as long as everything is fine. 46 */ 47 enum GNUNET_GenericReturnValue status; 48 49 }; 50 51 52 /** 53 * Invoke the callback for each result. 54 * 55 * @param cls a `struct MissingWireContext *` 56 * @param result SQL result 57 * @param num_results number of rows in @a result 58 */ 59 static void 60 get_wire_accounts_cb (void *cls, 61 PGresult *result, 62 unsigned int num_results) 63 { 64 struct GetWireAccountsContext *ctx = cls; 65 66 for (unsigned int i = 0; i < num_results; i++) 67 { 68 struct TALER_FullPayto payto_uri; 69 char *conversion_url = NULL; 70 char *open_banking_gateway = NULL; 71 char *wire_transfer_gateway = NULL; 72 json_t *debit_restrictions = NULL; 73 json_t *credit_restrictions = NULL; 74 struct TALER_MasterSignatureP master_sig; 75 char *bank_label = NULL; 76 int64_t priority; 77 struct GNUNET_PQ_ResultSpec rs[] = { 78 GNUNET_PQ_result_spec_string ("payto_uri", 79 &payto_uri.full_payto), 80 GNUNET_PQ_result_spec_allow_null ( 81 GNUNET_PQ_result_spec_string ("conversion_url", 82 &conversion_url), 83 NULL), 84 GNUNET_PQ_result_spec_allow_null ( 85 GNUNET_PQ_result_spec_string ("open_banking_gateway", 86 &open_banking_gateway), 87 NULL), 88 GNUNET_PQ_result_spec_allow_null ( 89 GNUNET_PQ_result_spec_string ("wire_transfer_gateway", 90 &wire_transfer_gateway), 91 NULL), 92 GNUNET_PQ_result_spec_allow_null ( 93 GNUNET_PQ_result_spec_string ("bank_label", 94 &bank_label), 95 NULL), 96 GNUNET_PQ_result_spec_int64 ("priority", 97 &priority), 98 GNUNET_PQ_result_spec_allow_null ( 99 TALER_PQ_result_spec_json ("debit_restrictions", 100 &debit_restrictions), 101 NULL), 102 GNUNET_PQ_result_spec_allow_null ( 103 TALER_PQ_result_spec_json ("credit_restrictions", 104 &credit_restrictions), 105 NULL), 106 GNUNET_PQ_result_spec_auto_from_type ("master_sig", 107 &master_sig), 108 GNUNET_PQ_result_spec_end 109 }; 110 111 if (GNUNET_OK != 112 GNUNET_PQ_extract_result (result, 113 rs, 114 i)) 115 { 116 GNUNET_break (0); 117 ctx->status = GNUNET_SYSERR; 118 return; 119 } 120 if (NULL == debit_restrictions) 121 { 122 debit_restrictions = json_array (); 123 GNUNET_assert (NULL != debit_restrictions); 124 } 125 if (NULL == credit_restrictions) 126 { 127 credit_restrictions = json_array (); 128 GNUNET_assert (NULL != credit_restrictions); 129 } 130 ctx->cb (ctx->cb_cls, 131 payto_uri, 132 conversion_url, 133 open_banking_gateway, 134 wire_transfer_gateway, 135 debit_restrictions, 136 credit_restrictions, 137 &master_sig, 138 bank_label, 139 priority); 140 GNUNET_PQ_cleanup_result (rs); 141 } 142 } 143 144 145 enum GNUNET_DB_QueryStatus 146 TEH_PG_get_wire_accounts (void *cls, 147 TALER_EXCHANGEDB_WireAccountCallback cb, 148 void *cb_cls) 149 { 150 struct PostgresClosure *pg = cls; 151 struct GetWireAccountsContext ctx = { 152 .cb = cb, 153 .cb_cls = cb_cls, 154 .status = GNUNET_OK 155 }; 156 struct GNUNET_PQ_QueryParam params[] = { 157 GNUNET_PQ_query_param_end 158 }; 159 enum GNUNET_DB_QueryStatus qs; 160 161 PREPARE (pg, 162 "get_wire_accounts", 163 "SELECT" 164 " payto_uri" 165 ",conversion_url" 166 ",open_banking_gateway" 167 ",wire_transfer_gateway" 168 ",debit_restrictions::TEXT" 169 ",credit_restrictions::TEXT" 170 ",master_sig" 171 ",bank_label" 172 ",priority" 173 " FROM wire_accounts" 174 " WHERE is_active"); 175 qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn, 176 "get_wire_accounts", 177 params, 178 &get_wire_accounts_cb, 179 &ctx); 180 if (GNUNET_OK != ctx.status) 181 return GNUNET_DB_STATUS_HARD_ERROR; 182 return qs; 183 }