Line data    Source code

       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/do_insert_validation.c
      18              :  * @brief Implementation of the do_insert_validation 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 "do_insert_validation.h"
      26              : #include "pg_helper.h"
      27              : 
      28              : 
      29              : enum GNUNET_DB_QueryStatus
      30           34 : CHALLENGERDB_do_insert_validation (struct CHALLENGERDB_PostgresContext *ctx,
      31              :                                    uint64_t client_id,
      32              :                                    const char *client_secret,
      33              :                                    const struct
      34              :                                    CHALLENGER_ValidationNonceP *nonce,
      35              :                                    struct GNUNET_TIME_Absolute expiration_time,
      36              :                                    const json_t *initial_address)
      37              : {
      38           34 :   struct GNUNET_PQ_QueryParam params[] = {
      39           34 :     GNUNET_PQ_query_param_uint64 (&client_id),
      40           34 :     GNUNET_PQ_query_param_string (client_secret),
      41           34 :     GNUNET_PQ_query_param_auto_from_type (nonce),
      42           34 :     GNUNET_PQ_query_param_absolute_time (&expiration_time),
      43              :     NULL == initial_address
      44           30 :     ? GNUNET_PQ_query_param_null ()
      45           34 :     : TALER_PQ_query_param_json (initial_address),
      46              :     GNUNET_PQ_query_param_end
      47              :   };
      48              : 
      49              :   /* Authenticating the client, charging it for the validation and creating
      50              :      the validation row must happen together: the counter may only move if
      51              :      the validation is really created.  Doing it in one statement also saves
      52              :      the round trips of an explicit transaction.  A client that does not
      53              :      exist (or presents the wrong secret) leaves the CTE empty, so nothing is
      54              :      inserted and the caller sees NO_RESULTS. */
      55           34 :   PREPARE (ctx,
      56              :            "do_insert_validation",
      57              :            "WITH charged AS ("
      58              :            "  UPDATE clients"
      59              :            "     SET validation_counter=validation_counter+1"
      60              :            "   WHERE client_serial_id=$1"
      61              :            "     AND client_secret=$2"
      62              :            "  RETURNING client_serial_id, uri"
      63              :            ") INSERT INTO validations"
      64              :            " (client_serial_id"
      65              :            " ,nonce"
      66              :            " ,expiration_time"
      67              :            " ,client_redirect_uri"
      68              :            " ,address"
      69              :            ") SELECT client_serial_id, $3, $4, uri, $5"
      70              :            " FROM charged;");
      71           34 :   return GNUNET_PQ_eval_prepared_non_select (ctx->conn,
      72              :                                              "do_insert_validation",
      73              :                                              params);
      74              : }