diff options
Diffstat (limited to 'src/auditordb/pg_get_deposit_confirmations.c')
| -rw-r--r-- | src/auditordb/pg_get_deposit_confirmations.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/src/auditordb/pg_get_deposit_confirmations.c b/src/auditordb/pg_get_deposit_confirmations.c new file mode 100644 index 000000000..b8055a296 --- /dev/null +++ b/src/auditordb/pg_get_deposit_confirmations.c @@ -0,0 +1,199 @@ +/* + 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; +} |