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_error_codes.h> 23 #include <taler/taler_dbevents.h> 24 #include <taler/taler_pq_lib.h> 25 #include "taler/taler_merchant_util.h" 26 #include "merchantdb_lib.h" 27 #include "merchant-database/lookup_mfa_challenge.h" 28 #include "helper.h" 29 30 31 enum GNUNET_DB_QueryStatus 32 TALER_MERCHANTDB_lookup_mfa_challenge ( 33 struct TALER_MERCHANTDB_PostgresContext *pg, 34 uint64_t challenge_id, 35 const struct TALER_MERCHANT_MFA_BodyHash *h_body, 36 struct TALER_MERCHANT_MFA_BodySalt *salt, 37 char **required_address, 38 enum TALER_MERCHANT_MFA_CriticalOperation *op, 39 struct GNUNET_TIME_Absolute *confirmation_date, 40 struct GNUNET_TIME_Absolute *retransmission_date, 41 uint32_t *retry_counter, 42 enum TALER_MERCHANT_MFA_Channel *tan_channel, 43 char **instance_name) 44 { 45 struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get (); 46 struct GNUNET_PQ_QueryParam params[] = { 47 GNUNET_PQ_query_param_uint64 (&challenge_id), 48 GNUNET_PQ_query_param_auto_from_type (h_body), 49 GNUNET_PQ_query_param_absolute_time (&now), 50 GNUNET_PQ_query_param_end 51 }; 52 char *op_str; 53 char *chan_str; 54 bool no_conf; 55 struct GNUNET_PQ_ResultSpec rs[] = { 56 GNUNET_PQ_result_spec_string ("op", 57 &op_str), 58 GNUNET_PQ_result_spec_auto_from_type ("salt", 59 salt), 60 GNUNET_PQ_result_spec_allow_null ( 61 GNUNET_PQ_result_spec_absolute_time ("confirmation_date", 62 confirmation_date), 63 &no_conf), 64 GNUNET_PQ_result_spec_absolute_time ("retransmission_date", 65 retransmission_date), 66 GNUNET_PQ_result_spec_uint32 ("retry_counter", 67 retry_counter), 68 GNUNET_PQ_result_spec_string ("tan_channel", 69 &chan_str), 70 GNUNET_PQ_result_spec_string ("required_address", 71 required_address), 72 GNUNET_PQ_result_spec_string ("merchant_id", 73 instance_name), 74 GNUNET_PQ_result_spec_end 75 }; 76 enum GNUNET_DB_QueryStatus qs; 77 78 PREPARE (pg, 79 "lookup_mfa_challenge", 80 "SELECT " 81 " tc.op::TEXT" 82 " ,tc.salt" 83 " ,tc.confirmation_date" 84 " ,tc.retransmission_date" 85 " ,tc.retry_counter" 86 " ,tc.required_address" 87 " ,tc.tan_channel::TEXT" 88 " ,mi.merchant_id" 89 " FROM tan_challenges.tc" 90 " JOIN merchant_instances.mi" 91 " USING (merchant_serial)" 92 " WHERE (challenge_id = $1)" 93 " AND (h_body = $2)" 94 " AND (expiration_date > $3)"); 95 /* Initialize to conservative values in case qs ends up <= 0 */ 96 *tan_channel = TALER_MERCHANT_MFA_CHANNEL_NONE; 97 *op = TALER_MERCHANT_MFA_CO_NONE; 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 }