diff options
Diffstat (limited to 'src/exchangedb/pg_iterate_kyc_reference.c')
-rw-r--r-- | src/exchangedb/pg_iterate_kyc_reference.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/exchangedb/pg_iterate_kyc_reference.c b/src/exchangedb/pg_iterate_kyc_reference.c new file mode 100644 index 000000000..772c51e2c --- /dev/null +++ b/src/exchangedb/pg_iterate_kyc_reference.c @@ -0,0 +1,129 @@ +/* + This file is part of TALER + Copyright (C) 2022 Taler Systems SA + + TALER is free software; you can redistribute it and/or modify it under the + terms of the GNU General Public License as published by the Free Software + Foundation; either version 3, or (at your option) any later version. + + TALER is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR + A PARTICULAR PURPOSE. See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with + TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ +/** + * @file pg_iterate_kyc_reference.c + * @brief Low-level (statement-level) Postgres database access for the exchange + * @author Christian Grothoff + */ +#include "platform.h" +#include "taler_error_codes.h" +#include "taler_dbevents.h" +#include "taler_pq_lib.h" +#include "pg_iterate_kyc_reference.h" +#include "pg_helper.h" + + +/** + * Closure for #iterate_kyc_reference_cb() + */ +struct IteratorContext +{ + /** + * Function to call with the results. + */ + TALER_EXCHANGEDB_LegitimizationProcessCallback cb; + + /** + * Closure to pass to @e cb + */ + void *cb_cls; + + /** + * Plugin context. + */ + struct PostgresClosure *pg; +}; + + +/** + * Helper function for #TEH_PG_iterate_kyc_reference(). + * Calls the callback with each denomination key. + * + * @param cls a `struct IteratorContext` + * @param result db results + * @param num_results number of results in @a result + */ +static void +iterate_kyc_reference_cb (void *cls, + PGresult *result, + unsigned int num_results) +{ + struct IteratorContext *ic = cls; + + for (unsigned int i = 0; i<num_results; i++) + { + char *kyc_provider_section_name; + char *provider_user_id; + char *legitimization_id; + struct GNUNET_PQ_ResultSpec rs[] = { + GNUNET_PQ_result_spec_string ("provider_section", + &kyc_provider_section_name), + GNUNET_PQ_result_spec_string ("provider_user_id", + &provider_user_id), + GNUNET_PQ_result_spec_string ("provider_legitimization_id", + &legitimization_id), + GNUNET_PQ_result_spec_end + }; + + if (GNUNET_OK != + GNUNET_PQ_extract_result (result, + rs, + i)) + { + GNUNET_break (0); + return; + } + ic->cb (ic->cb_cls, + kyc_provider_section_name, + provider_user_id, + legitimization_id); + GNUNET_PQ_cleanup_result (rs); + } +} + + +enum GNUNET_DB_QueryStatus +TEH_PG_iterate_kyc_reference ( + void *cls, + const struct TALER_PaytoHashP *h_payto, + TALER_EXCHANGEDB_LegitimizationProcessCallback lpc, + void *lpc_cls) +{ + struct PostgresClosure *pg = cls; + struct GNUNET_PQ_QueryParam params[] = { + GNUNET_PQ_query_param_auto_from_type (h_payto), + GNUNET_PQ_query_param_end + }; + struct IteratorContext ic = { + .cb = lpc, + .cb_cls = lpc_cls, + .pg = pg + }; + + PREPARE (pg, + "iterate_kyc_reference", + "SELECT " + " provider_section" + ",provider_user_id" + ",provider_legitimization_id" + " FROM legitimization_processes" + " WHERE h_payto=$1;"); + return GNUNET_PQ_eval_prepared_multi_select (pg->conn, + "iterate_kyc_reference", + params, + &iterate_kyc_reference_cb, + &ic); +} |