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