challenger

OAuth 2.0-based authentication service that validates user can receive messages at a certain address
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preflight.c (1818B)

      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/preflight.c
     18  * @brief Implementation of the preflight function for Postgres
     19  * @author Christian Grothoff
     20  */
     21 #include "platform.h"
     22 #include <taler/taler_pq_lib.h>
     23 #include "challenger-database/preflight.h"
     24 #include "pg_helper.h"
     25 
     26 
     27 enum GNUNET_GenericReturnValue
     28 CHALLENGERDB_preflight (struct CHALLENGERDB_PostgresContext *pg)
     29 {
     30   struct GNUNET_PQ_ExecuteStatement es[] = {
     31     GNUNET_PQ_make_execute ("ROLLBACK"),
     32     GNUNET_PQ_EXECUTE_STATEMENT_END
     33   };
     34 
     35   if (NULL == pg->transaction_name)
     36   {
     37     GNUNET_PQ_reconnect_if_down (pg->conn);
     38     return GNUNET_OK; /* all good */
     39   }
     40   if (GNUNET_OK ==
     41       GNUNET_PQ_exec_statements (pg->conn,
     42                                  es))
     43   {
     44     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     45                 "BUG: Preflight check rolled back transaction `%s'!\n",
     46                 pg->transaction_name);
     47   }
     48   else
     49   {
     50     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     51                 "BUG: Preflight check failed to rollback transaction `%s'!\n",
     52                 pg->transaction_name);
     53   }
     54   pg->transaction_name = NULL;
     55   return GNUNET_NO;
     56 }