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/*
This file is part of TALER
Copyright (C) 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 backenddb/pg_lookup_pending_deposits.c
* @brief Implementation of the lookup_pending_deposits function for Postgres
* @author Christian Grothoff
*/
#include "platform.h"
#include <taler/taler_error_codes.h>
#include <taler/taler_dbevents.h>
#include <taler/taler_pq_lib.h>
#include "pg_lookup_pending_deposits.h"
#include "pg_helper.h"
/**
* Context for lookup_pending_deposits().
*/
struct LookupDepositsContext
{
/**
* Function to call with the results.
*/
TALER_MERCHANTDB_PendingDepositsCallback cb;
/**
* Closure for @e cb.
*/
void *cb_cls;
/**
* Database context.
*/
struct PostgresClosure *pg;
/**
* Set to the return value on errors.
*/
enum GNUNET_DB_QueryStatus qs;
};
/**
* Function to be called with the results of a SELECT statement
* that has returned @a num_results results about instances.
*
* @param cls of type `struct LookupDepositsContext *`
* @param result the postgres result
* @param num_results the number of results in @a result
*/
static void
lookup_deposits_cb (void *cls,
PGresult *result,
unsigned int num_results)
{
struct LookupDepositsContext *ldc = cls;
for (unsigned int i = 0; i < num_results; i++)
{
uint64_t deposit_serial;
struct GNUNET_TIME_Absolute wire_deadline;
struct GNUNET_TIME_Relative retry_backoff;
struct TALER_PrivateContractHashP h_contract_terms;
struct TALER_MerchantPrivateKeyP merchant_priv;
char *instance_id;
struct TALER_MerchantWireHashP h_wire;
struct TALER_Amount amount_with_fee;
struct TALER_Amount deposit_fee;
struct TALER_CoinSpendPublicKeyP coin_pub;
struct GNUNET_PQ_ResultSpec rs[] = {
GNUNET_PQ_result_spec_uint64 ("deposit_serial",
&deposit_serial),
GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
&h_contract_terms),
GNUNET_PQ_result_spec_auto_from_type ("merchant_priv",
&merchant_priv),
GNUNET_PQ_result_spec_string ("merchant_id",
&instance_id),
GNUNET_PQ_result_spec_absolute_time ("wire_transfer_deadline",
&wire_deadline),
GNUNET_PQ_result_spec_relative_time ("retry_backoff",
&retry_backoff),
GNUNET_PQ_result_spec_auto_from_type ("h_wire",
&h_wire),
TALER_PQ_result_spec_amount_with_currency ("amount_with_fee",
&amount_with_fee),
TALER_PQ_result_spec_amount_with_currency ("deposit_fee",
&deposit_fee),
GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
&coin_pub),
GNUNET_PQ_result_spec_end
};
if (GNUNET_OK !=
GNUNET_PQ_extract_result (result,
rs,
i))
{
GNUNET_break (0);
ldc->qs = GNUNET_DB_STATUS_HARD_ERROR;
return;
}
ldc->cb (ldc->cb_cls,
deposit_serial,
wire_deadline,
retry_backoff,
&h_contract_terms,
&merchant_priv,
instance_id,
&h_wire,
&amount_with_fee,
&deposit_fee,
&coin_pub);
GNUNET_PQ_cleanup_result (rs);
}
}
enum GNUNET_DB_QueryStatus
TMH_PG_lookup_pending_deposits (
void *cls,
const char *exchange_url,
uint64_t limit,
bool allow_future,
TALER_MERCHANTDB_PendingDepositsCallback cb,
void *cb_cls)
{
struct PostgresClosure *pg = cls;
struct LookupDepositsContext ldc = {
.cb = cb,
.cb_cls = cb_cls,
.pg = pg
};
struct GNUNET_TIME_Absolute now
= GNUNET_TIME_absolute_get ();
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_string (exchange_url),
GNUNET_PQ_query_param_absolute_time (&now),
GNUNET_PQ_query_param_uint64 (&limit),
GNUNET_PQ_query_param_bool (allow_future),
GNUNET_PQ_query_param_end
};
enum GNUNET_DB_QueryStatus qs;
check_connection (pg);
PREPARE (pg,
"lookup_pending_deposits",
"SELECT"
" md.deposit_serial"
",mct.h_contract_terms"
",mk.merchant_priv"
",mi.merchant_id"
",mdc.wire_transfer_deadline"
",ma.h_wire"
",md.amount_with_fee"
",md.deposit_fee"
",md.coin_pub"
",mdc.retry_backoff"
" FROM merchant_deposit_confirmations mdc"
" JOIN merchant_contract_terms mct"
" USING (order_serial)"
" JOIN merchant_accounts ma"
" USING (account_serial)"
" LEFT JOIN merchant_kyc kyc"
" ON (ma.account_serial=kyc.account_serial)"
" JOIN merchant_instances mi"
" ON (mct.merchant_serial=mi.merchant_serial)"
" JOIN merchant_keys mk"
" ON (mi.merchant_serial=mk.merchant_serial)"
" JOIN merchant_deposits md"
" USING (deposit_confirmation_serial)"
" WHERE mdc.wire_pending"
" AND (mdc.exchange_url=$1)"
" AND ($4 OR (mdc.wire_transfer_deadline < $2))"
" AND ( (kyc.kyc_ok IS NULL) OR kyc.kyc_ok)"
" AND ( (kyc.aml_decision IS NULL) OR (0=kyc.aml_decision) )"
" ORDER BY mdc.wire_transfer_deadline ASC"
" LIMIT $3");
qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
"lookup_pending_deposits",
params,
&lookup_deposits_cb,
&ldc);
if (0 > ldc.qs)
return ldc.qs;
return qs;
}
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