challenger

OAuth 2.0-based authentication service that validates user can receive messages at a certain address
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validation_get.c (3021B)

      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.c
     18  * @brief Implementation of the validation_get 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 "validation_get.h"
     26 #include "pg_helper.h"
     27 
     28 
     29 enum GNUNET_DB_QueryStatus
     30 CHALLENGERDB_validation_get (
     31   struct CHALLENGERDB_PostgresContext *ctx,
     32   const struct CHALLENGER_ValidationNonceP *nonce,
     33   char **client_secret,
     34   json_t **address,
     35   char **client_scope,
     36   char **client_state,
     37   char **client_redirect_uri)
     38 {
     39   struct GNUNET_TIME_Absolute now
     40     = GNUNET_TIME_absolute_get ();
     41   struct GNUNET_PQ_QueryParam params[] = {
     42     GNUNET_PQ_query_param_auto_from_type (nonce),
     43     GNUNET_PQ_query_param_absolute_time (&now),
     44     GNUNET_PQ_query_param_end
     45   };
     46   struct GNUNET_PQ_ResultSpec rs[] = {
     47     GNUNET_PQ_result_spec_string ("client_secret",
     48                                   client_secret),
     49     GNUNET_PQ_result_spec_allow_null (
     50       TALER_PQ_result_spec_json ("address",
     51                                  address),
     52       NULL),
     53     GNUNET_PQ_result_spec_allow_null (
     54       GNUNET_PQ_result_spec_string ("client_scope",
     55                                     client_scope),
     56       NULL),
     57     GNUNET_PQ_result_spec_allow_null (
     58       GNUNET_PQ_result_spec_string ("client_state",
     59                                     client_state),
     60       NULL),
     61     GNUNET_PQ_result_spec_string ("redirect_uri",
     62                                   client_redirect_uri),
     63     GNUNET_PQ_result_spec_end
     64   };
     65 
     66   *client_scope = NULL;
     67   *client_state = NULL;
     68   *address = NULL;
     69   PREPARE (ctx,
     70            "validation_get",
     71            "SELECT "
     72            "  client_secret"
     73            " ,address"
     74            " ,client_scope"
     75            " ,client_state"
     76            " ,COALESCE(client_redirect_uri,uri) AS redirect_uri"
     77            " FROM validations"
     78            " JOIN clients "
     79            "  USING (client_serial_id)"
     80            " WHERE nonce=$1"
     81            "   AND expiration_time > $2");
     82   return GNUNET_PQ_eval_prepared_singleton_select (ctx->conn,
     83                                                    "validation_get",
     84                                                    params,
     85                                                    rs);
     86 }