diff options
Diffstat (limited to 'src/exchangedb/pg_lookup_transfer_by_deposit.c')
-rw-r--r-- | src/exchangedb/pg_lookup_transfer_by_deposit.c | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/src/exchangedb/pg_lookup_transfer_by_deposit.c b/src/exchangedb/pg_lookup_transfer_by_deposit.c new file mode 100644 index 000000000..686b67cc4 --- /dev/null +++ b/src/exchangedb/pg_lookup_transfer_by_deposit.c @@ -0,0 +1,203 @@ +/* + 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 exchangedb/pg_lookup_transfer_by_deposit.c + * @brief Implementation of the lookup_transfer_by_deposit function for Postgres + * @author Christian Grothoff + */ +#include "platform.h" +#include "taler_error_codes.h" +#include "taler_dbevents.h" +#include "taler_pq_lib.h" +#include "pg_lookup_transfer_by_deposit.h" +#include "pg_helper.h" + + + +enum GNUNET_DB_QueryStatus +TEH_PG_lookup_transfer_by_deposit ( + void *cls, + const struct TALER_PrivateContractHashP *h_contract_terms, + const struct TALER_MerchantWireHashP *h_wire, + const struct TALER_CoinSpendPublicKeyP *coin_pub, + const struct TALER_MerchantPublicKeyP *merchant_pub, + bool *pending, + struct TALER_WireTransferIdentifierRawP *wtid, + struct GNUNET_TIME_Timestamp *exec_time, + struct TALER_Amount *amount_with_fee, + struct TALER_Amount *deposit_fee, + struct TALER_EXCHANGEDB_KycStatus *kyc) +{ + struct PostgresClosure *pg = cls; + enum GNUNET_DB_QueryStatus qs; + struct GNUNET_PQ_QueryParam params[] = { + GNUNET_PQ_query_param_auto_from_type (coin_pub), + GNUNET_PQ_query_param_auto_from_type (h_contract_terms), + GNUNET_PQ_query_param_auto_from_type (merchant_pub), + GNUNET_PQ_query_param_end + }; + char *payto_uri; + struct TALER_WireSaltP wire_salt; + struct GNUNET_PQ_ResultSpec rs[] = { + GNUNET_PQ_result_spec_auto_from_type ("wtid_raw", + wtid), + GNUNET_PQ_result_spec_auto_from_type ("wire_salt", + &wire_salt), + GNUNET_PQ_result_spec_string ("payto_uri", + &payto_uri), + GNUNET_PQ_result_spec_timestamp ("execution_date", + exec_time), + TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee", + amount_with_fee), + TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit", + deposit_fee), + GNUNET_PQ_result_spec_end + }; + + memset (kyc, + 0, + sizeof (*kyc)); + /* check if the aggregation record exists and get it */ + + /* Used in #postgres_lookup_transfer_by_deposit */ + PREPARE (pg, + "lookup_deposit_wtid", + "SELECT" + " aggregation_tracking.wtid_raw" + ",wire_out.execution_date" + ",dep.amount_with_fee_val" + ",dep.amount_with_fee_frac" + ",dep.wire_salt" + ",wt.payto_uri" + ",denom.fee_deposit_val" + ",denom.fee_deposit_frac" + " FROM deposits dep" + " JOIN wire_targets wt" + " USING (wire_target_h_payto)" + " JOIN aggregation_tracking" + " USING (deposit_serial_id)" + " JOIN known_coins kc" + " ON (kc.coin_pub = dep.coin_pub)" + " JOIN denominations denom" + " USING (denominations_serial)" + " JOIN wire_out" + " USING (wtid_raw)" + " WHERE dep.coin_pub=$1" + " AND dep.merchant_pub=$3" + " AND dep.h_contract_terms=$2"); + + qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn, + "lookup_deposit_wtid", + params, + rs); + if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs) + { + struct TALER_MerchantWireHashP wh; + + TALER_merchant_wire_signature_hash (payto_uri, + &wire_salt, + &wh); + GNUNET_PQ_cleanup_result (rs); + if (0 == + GNUNET_memcmp (&wh, + h_wire)) + { + *pending = false; + kyc->ok = true; + return qs; + } + qs = GNUNET_DB_STATUS_SUCCESS_NO_RESULTS; + } + if (0 > qs) + return qs; + *pending = true; + memset (wtid, + 0, + sizeof (*wtid)); + GNUNET_assert (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "lookup_deposit_wtid returned 0 matching rows\n"); + { + /* Check if transaction exists in deposits, so that we just + do not have a WTID yet. In that case, return without wtid + (by setting 'pending' true). */ + struct GNUNET_PQ_ResultSpec rs2[] = { + GNUNET_PQ_result_spec_auto_from_type ("wire_salt", + &wire_salt), + GNUNET_PQ_result_spec_string ("payto_uri", + &payto_uri), + GNUNET_PQ_result_spec_allow_null ( + GNUNET_PQ_result_spec_uint64 ("legitimization_requirement_serial_id", + &kyc->requirement_row), + NULL), + TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee", + amount_with_fee), + TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit", + deposit_fee), + GNUNET_PQ_result_spec_timestamp ("wire_deadline", + exec_time), + GNUNET_PQ_result_spec_end + }; + + /* Fetch an existing deposit request. + Used in #postgres_lookup_transfer_by_deposit(). */ + PREPARE (pg, + "get_deposit_without_wtid", + "SELECT" + " agt.legitimization_requirement_serial_id" + ",dep.wire_salt" + ",wt.payto_uri" + ",dep.amount_with_fee_val" + ",dep.amount_with_fee_frac" + ",denom.fee_deposit_val" + ",denom.fee_deposit_frac" + ",dep.wire_deadline" + " FROM deposits dep" + " JOIN wire_targets wt" + " USING (wire_target_h_payto)" + " JOIN known_coins kc" + " ON (kc.coin_pub = dep.coin_pub)" + " JOIN denominations denom" + " USING (denominations_serial)" + " LEFT JOIN aggregation_transient agt " + " ON ( (dep.wire_target_h_payto = agt.wire_target_h_payto) AND" + " (dep.merchant_pub = agt.merchant_pub) )" + " WHERE dep.coin_pub=$1" + " AND dep.merchant_pub=$3" + " AND dep.h_contract_terms=$2" + " LIMIT 1;"); + qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn, + "get_deposit_without_wtid", + params, + rs2); + if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs) + { + struct TALER_MerchantWireHashP wh; + + if (0 == kyc->requirement_row) + kyc->ok = true; /* technically: unknown */ + TALER_merchant_wire_signature_hash (payto_uri, + &wire_salt, + &wh); + GNUNET_PQ_cleanup_result (rs); + if (0 != + GNUNET_memcmp (&wh, + h_wire)) + return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS; + } + return qs; + } +} |