pg_lookup_mfa_challenge.c (4170B)
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 backenddb/pg_lookup_mfa_challenge.c 18 * @brief Implementation of the lookup_mfa_challenge function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "taler/platform.h" 22 #include <taler/taler_error_codes.h> 23 #include <taler/taler_dbevents.h> 24 #include <taler/taler_pq_lib.h> 25 #include "pg_lookup_mfa_challenge.h" 26 #include "pg_helper.h" 27 28 29 enum GNUNET_DB_QueryStatus 30 TMH_PG_lookup_mfa_challenge ( 31 void *cls, 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 PostgresClosure *pg = cls; 44 struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get (); 45 struct GNUNET_PQ_QueryParam params[] = { 46 GNUNET_PQ_query_param_uint64 (&challenge_id), 47 GNUNET_PQ_query_param_auto_from_type (h_body), 48 GNUNET_PQ_query_param_absolute_time (&now), 49 GNUNET_PQ_query_param_end 50 }; 51 char *op_str; 52 char *chan_str; 53 bool no_conf; 54 struct GNUNET_PQ_ResultSpec rs[] = { 55 GNUNET_PQ_result_spec_string ("op", 56 &op_str), 57 GNUNET_PQ_result_spec_auto_from_type ("salt", 58 salt), 59 GNUNET_PQ_result_spec_allow_null ( 60 GNUNET_PQ_result_spec_absolute_time ("confirmation_date", 61 confirmation_date), 62 &no_conf), 63 GNUNET_PQ_result_spec_absolute_time ("retransmission_date", 64 retransmission_date), 65 GNUNET_PQ_result_spec_uint32 ("retry_counter", 66 retry_counter), 67 GNUNET_PQ_result_spec_string ("tan_channel", 68 &chan_str), 69 GNUNET_PQ_result_spec_string ("required_address", 70 required_address), 71 GNUNET_PQ_result_spec_string ("merchant_id", 72 instance_name), 73 GNUNET_PQ_result_spec_end 74 }; 75 enum GNUNET_DB_QueryStatus qs; 76 77 PREPARE (pg, 78 "lookup_mfa_challenge", 79 "SELECT " 80 " tc.op::TEXT" 81 " ,tc.salt" 82 " ,tc.confirmation_date" 83 " ,tc.retransmission_date" 84 " ,tc.retry_counter" 85 " ,tc.required_address" 86 " ,tc.tan_channel::TEXT" 87 " ,mi.merchant_id" 88 " FROM tan_challenges.tc" 89 " JOIN merchant_instances.mi" 90 " USING (merchant_serial)" 91 " WHERE (challenge_id = $1)" 92 " AND (h_body = $2)" 93 " AND (expiration_date > $3)"); 94 /* Initialize to conservative values in case qs ends up <= 0 */ 95 *tan_channel = TALER_MERCHANT_MFA_CHANNEL_NONE; 96 *op = TALER_MERCHANT_MFA_CO_NONE; 97 *retry_counter = 0; 98 qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn, 99 "lookup_mfa_challenge", 100 params, 101 rs); 102 if (qs <= 0) 103 return qs; 104 if (no_conf) 105 *confirmation_date = GNUNET_TIME_UNIT_FOREVER_ABS; 106 *tan_channel = TALER_MERCHANT_MFA_channel_from_string (chan_str); 107 *op = TALER_MERCHANT_MFA_co_from_string (op_str); 108 GNUNET_free (chan_str); 109 GNUNET_free (op_str); 110 return qs; 111 }