challenger

OAuth 2.0-based authentication service that validates user can receive messages at a certain address
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validation_get_pkce.c (3584B)

      1 /*
      2    This file is part of Challenger
      3    Copyright (C) 2023 Taler Systems SA
      4 
      5    Challenger 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    Challenger 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    Challenger; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
     15  */
     16 /**
     17  * @file src/challengerdb/validation_get_pkce.c
     18  * @brief Implementation of the validation_get_pkce function for Postgres
     19  * @author Bohdan Potuzhnyi
     20  * @author Vlada Svirsh
     21  */
     22 #include "platform.h"
     23 #include <taler/taler_error_codes.h>
     24 #include <taler/taler_dbevents.h>
     25 #include <taler/taler_pq_lib.h>
     26 #include "validation_get_pkce.h"
     27 #include "pg_helper.h"
     28 
     29 enum GNUNET_DB_QueryStatus
     30 CHALLENGERDB_validation_get_pkce (
     31   struct CHALLENGERDB_PostgresContext *ctx,
     32   const struct CHALLENGER_ValidationNonceP *nonce,
     33   uint64_t client_id,
     34   char **client_secret,
     35   json_t **address,
     36   char **client_scope,
     37   char **client_state,
     38   char **client_redirect_uri,
     39   char **code_challenge,
     40   uint32_t *code_challenge_method)
     41 {
     42   struct GNUNET_TIME_Absolute now
     43     = GNUNET_TIME_absolute_get ();
     44   struct GNUNET_PQ_QueryParam params[] = {
     45     GNUNET_PQ_query_param_auto_from_type (nonce),
     46     GNUNET_PQ_query_param_absolute_time (&now),
     47     GNUNET_PQ_query_param_uint64 (&client_id),
     48     GNUNET_PQ_query_param_end
     49   };
     50   struct GNUNET_PQ_ResultSpec rs[] = {
     51     GNUNET_PQ_result_spec_string ("client_secret",
     52                                   client_secret),
     53     GNUNET_PQ_result_spec_allow_null (
     54       TALER_PQ_result_spec_json ("address",
     55                                  address),
     56       NULL),
     57     GNUNET_PQ_result_spec_allow_null (
     58       GNUNET_PQ_result_spec_string ("client_scope",
     59                                     client_scope),
     60       NULL),
     61     GNUNET_PQ_result_spec_allow_null (
     62       GNUNET_PQ_result_spec_string ("client_state",
     63                                     client_state),
     64       NULL),
     65     GNUNET_PQ_result_spec_string ("redirect_uri",
     66                                   client_redirect_uri),
     67     GNUNET_PQ_result_spec_allow_null (
     68       GNUNET_PQ_result_spec_string ("code_challenge",
     69                                     code_challenge),
     70       NULL),
     71     GNUNET_PQ_result_spec_uint32 ("code_challenge_method",
     72                                   code_challenge_method),
     73     GNUNET_PQ_result_spec_end
     74   };
     75 
     76   *client_scope = NULL;
     77   *client_state = NULL;
     78   *address = NULL;
     79   PREPARE (ctx,
     80            "validation_get_pkce",
     81            "SELECT "
     82            "  client_secret"
     83            " ,address"
     84            " ,client_scope"
     85            " ,client_state"
     86            " ,COALESCE(client_redirect_uri,uri) AS redirect_uri"
     87            " ,code_challenge"
     88            " ,code_challenge_method"
     89            " FROM validations"
     90            " JOIN clients "
     91            "  USING (client_serial_id)"
     92            " WHERE nonce=$1"
     93            "   AND expiration_time > $2"
     94            "   AND client_serial_id=$3");
     95   return GNUNET_PQ_eval_prepared_singleton_select (ctx->conn,
     96                                                    "validation_get_pkce",
     97                                                    params,
     98                                                    rs);
     99 }