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/*
This file is part of TALER
Copyright (C) 2022-2023 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_get_deposit_confirmations.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_get_deposit_confirmations.h"
#include "pg_helper.h"
/**
* Closure for #deposit_confirmation_cb().
*/
struct DepositConfirmationContext
{
/**
* Function to call for each deposit confirmation.
*/
TALER_AUDITORDB_DepositConfirmationCallback cb;
/**
* Closure for @e cb
*/
void *cb_cls;
/**
* Plugin context.
*/
struct PostgresClosure *pg;
/**
* Query status to return.
*/
enum GNUNET_DB_QueryStatus qs;
};
/**
* Helper function for #TAH_PG_get_deposit_confirmations().
* To be called with the results of a SELECT statement
* that has returned @a num_results results.
*
* @param cls closure of type `struct DepositConfirmationContext *`
* @param result the postgres result
* @param num_results the number of results in @a result
*/
static void
deposit_confirmation_cb (void *cls,
PGresult *result,
unsigned int num_results)
{
struct DepositConfirmationContext *dcc = cls;
struct PostgresClosure *pg = dcc->pg;
for (unsigned int i = 0; i < num_results; i++)
{
uint64_t serial_id;
struct TALER_AUDITORDB_DepositConfirmation dc = { 0};
struct TALER_CoinSpendPublicKeyP *coin_pubs = NULL;
struct TALER_CoinSpendSignatureP *coin_sigs = NULL;
size_t num_pubs = 0;
size_t num_sigs = 0;
struct GNUNET_PQ_ResultSpec rs[] = {
GNUNET_PQ_result_spec_uint64 ("serial_id",
&serial_id),
GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
&dc.h_contract_terms),
GNUNET_PQ_result_spec_auto_from_type ("h_policy",
&dc.h_policy),
GNUNET_PQ_result_spec_auto_from_type ("h_wire",
&dc.h_wire),
GNUNET_PQ_result_spec_timestamp ("exchange_timestamp",
&dc.exchange_timestamp),
GNUNET_PQ_result_spec_timestamp ("refund_deadline",
&dc.refund_deadline),
GNUNET_PQ_result_spec_timestamp ("wire_deadline",
&dc.wire_deadline),
TALER_PQ_RESULT_SPEC_AMOUNT ("total_without_fee",
&dc.total_without_fee),
GNUNET_PQ_result_spec_auto_array_from_type (pg->conn,
"coin_pubs",
&num_pubs,
coin_pubs),
GNUNET_PQ_result_spec_auto_array_from_type (pg->conn,
"coin_sigs",
&num_sigs,
coin_sigs),
GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
&dc.merchant),
GNUNET_PQ_result_spec_auto_from_type ("exchange_sig",
&dc.exchange_sig),
GNUNET_PQ_result_spec_auto_from_type ("exchange_pub",
&dc.exchange_pub),
GNUNET_PQ_result_spec_auto_from_type ("master_sig",
&dc.master_sig),
GNUNET_PQ_result_spec_end
};
enum GNUNET_GenericReturnValue rval;
if (GNUNET_OK !=
GNUNET_PQ_extract_result (result,
rs,
i))
{
GNUNET_break (0);
dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
return;
}
if (num_sigs != num_pubs)
{
GNUNET_break (0);
dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
GNUNET_PQ_cleanup_result (rs);
return;
}
dcc->qs = i + 1;
dc.coin_pubs = coin_pubs;
dc.coin_sigs = coin_sigs;
dc.num_coins = num_sigs;
rval = dcc->cb (dcc->cb_cls,
serial_id,
&dc);
GNUNET_PQ_cleanup_result (rs);
if (GNUNET_OK != rval)
break;
}
}
enum GNUNET_DB_QueryStatus
TAH_PG_get_deposit_confirmations (
void *cls,
uint64_t start_id,
bool return_suppressed,
TALER_AUDITORDB_DepositConfirmationCallback cb,
void *cb_cls)
{
struct PostgresClosure *pg = cls;
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_uint64 (&start_id),
GNUNET_PQ_query_param_bool (return_suppressed),
GNUNET_PQ_query_param_end
};
struct DepositConfirmationContext dcc = {
.cb = cb,
.cb_cls = cb_cls,
.pg = pg
};
enum GNUNET_DB_QueryStatus qs;
PREPARE (pg,
"auditor_deposit_confirmation_select",
"SELECT"
" deposit_confirmation_serial_id"
",h_contract_terms"
",h_policy"
",h_wire"
",exchange_timestamp"
",wire_deadline"
",refund_deadline"
",total_without_fee"
",coin_pubs"
",coin_sigs"
",merchant_pub"
",exchange_sig"
",exchange_pub"
",master_sig"
" FROM auditor_deposit_confirmations"
" WHERE deposit_confirmation_serial_id>$1"
" AND ($2 OR NOT suppressed);");
qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
"auditor_deposit_confirmation_select",
params,
&deposit_confirmation_cb,
&dcc);
if (qs > 0)
return dcc.qs;
GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
return qs;
}
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