lookup_mfa_challenge.c (4252B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2025 Taler Systems SA 4 5 TALER is free software; you can redistribute it and/or modify it under the 6 terms of the GNU General Public License as published by the Free Software 7 Foundation; either version 3, or (at your option) any later version. 8 9 TALER is distributed in the hope that it will be useful, but WITHOUT ANY 10 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR 11 A PARTICULAR PURPOSE. See the GNU General Public License for more details. 12 13 You should have received a copy of the GNU General Public License along with 14 TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> 15 */ 16 /** 17 * @file src/backenddb/lookup_mfa_challenge.c 18 * @brief Implementation of the lookup_mfa_challenge function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "platform.h" 22 #include <taler/taler_pq_lib.h> 23 #include "taler/taler_merchant_util.h" 24 #include "merchantdb_lib.h" 25 #include "merchant-database/lookup_mfa_challenge.h" 26 #include "helper.h" 27 28 29 enum GNUNET_DB_QueryStatus 30 TALER_MERCHANTDB_lookup_mfa_challenge ( 31 struct TALER_MERCHANTDB_PostgresContext *pg, 32 uint64_t challenge_id, 33 const struct TALER_MERCHANT_MFA_BodyHash *h_body, 34 struct TALER_MERCHANT_MFA_BodySalt *salt, 35 char **required_address, 36 enum TALER_MERCHANT_MFA_CriticalOperation *op, 37 struct GNUNET_TIME_Absolute *confirmation_date, 38 struct GNUNET_TIME_Absolute *retransmission_date, 39 uint32_t *retry_counter, 40 enum TALER_MERCHANT_MFA_Channel *tan_channel, 41 char **instance_name) 42 { 43 struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get (); 44 struct GNUNET_PQ_QueryParam params[] = { 45 GNUNET_PQ_query_param_uint64 (&challenge_id), 46 GNUNET_PQ_query_param_auto_from_type (h_body), 47 GNUNET_PQ_query_param_absolute_time (&now), 48 GNUNET_PQ_query_param_end 49 }; 50 char *op_str; 51 char *chan_str; 52 bool no_conf; 53 struct GNUNET_PQ_ResultSpec rs[] = { 54 GNUNET_PQ_result_spec_string ("op", 55 &op_str), 56 GNUNET_PQ_result_spec_auto_from_type ("salt", 57 salt), 58 GNUNET_PQ_result_spec_allow_null ( 59 GNUNET_PQ_result_spec_absolute_time ("confirmation_date", 60 confirmation_date), 61 &no_conf), 62 GNUNET_PQ_result_spec_absolute_time ("retransmission_date", 63 retransmission_date), 64 GNUNET_PQ_result_spec_uint32 ("retry_counter", 65 retry_counter), 66 GNUNET_PQ_result_spec_string ("tan_channel", 67 &chan_str), 68 GNUNET_PQ_result_spec_string ("required_address", 69 required_address), 70 GNUNET_PQ_result_spec_string ("merchant_id", 71 instance_name), 72 GNUNET_PQ_result_spec_end 73 }; 74 enum GNUNET_DB_QueryStatus qs; 75 76 PREPARE (pg, 77 "lookup_mfa_challenge", 78 "SELECT " 79 " tc.op::TEXT" 80 " ,tc.salt" 81 " ,tc.confirmation_date" 82 " ,tc.retransmission_date" 83 " ,tc.retry_counter" 84 " ,tc.required_address" 85 " ,tc.tan_channel::TEXT" 86 " ,mi.merchant_id" 87 " FROM merchant.tan_challenges tc" 88 " JOIN merchant.merchant_instances mi" 89 " USING (merchant_serial)" 90 " WHERE (challenge_id = $1)" 91 " AND (h_body = $2)" 92 " AND (expiration_date > $3)"); 93 /* Initialize to conservative values in case qs ends up <= 0 */ 94 *tan_channel = TALER_MERCHANT_MFA_CHANNEL_NONE; 95 *op = TALER_MERCHANT_MFA_CO_NONE; 96 *instance_name = NULL; 97 *required_address = NULL; 98 *retry_counter = 0; 99 qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn, 100 "lookup_mfa_challenge", 101 params, 102 rs); 103 if (qs <= 0) 104 return qs; 105 if (no_conf) 106 *confirmation_date = GNUNET_TIME_UNIT_FOREVER_ABS; 107 *tan_channel = TALER_MERCHANT_MFA_channel_from_string (chan_str); 108 *op = TALER_MERCHANT_MFA_co_from_string (op_str); 109 GNUNET_free (chan_str); 110 GNUNET_free (op_str); 111 return qs; 112 }