Line data    Source code

       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 exchangedb/enable_rules.c
      18              :  * @brief Implementation of the enable_rules function for Postgres
      19              :  * @author Christian Grothoff
      20              :  */
      21              : #include "taler/taler_pq_lib.h"
      22              : #include "exchange-database/enable_rules.h"
      23              : #include "helper.h"
      24              : 
      25              : 
      26              : enum GNUNET_GenericReturnValue
      27            2 : TALER_EXCHANGEDB_enable_rules (
      28              :   struct TALER_EXCHANGEDB_PostgresContext *pg,
      29              :   const char *schema)
      30              : {
      31              :   enum GNUNET_GenericReturnValue ret;
      32              :   char *sp;
      33              : 
      34            2 :   GNUNET_asprintf (&sp,
      35              :                    "SET search_path TO %s,exchange;",
      36              :                    schema);
      37              :   {
      38            2 :     struct GNUNET_PQ_ExecuteStatement es[] = {
      39            2 :       GNUNET_PQ_make_try_execute (sp),
      40              :       GNUNET_PQ_EXECUTE_STATEMENT_END
      41              :     };
      42              :     char *schemadash;
      43              : 
      44            2 :     if (GNUNET_OK !=
      45            2 :         GNUNET_PQ_exec_statements (pg->conn,
      46              :                                    es))
      47              :     {
      48            0 :       GNUNET_break (0);
      49            0 :       GNUNET_free (sp);
      50            0 :       return GNUNET_SYSERR;
      51              :     }
      52            2 :     GNUNET_asprintf (&schemadash,
      53              :                      "%s-",
      54              :                      schema);
      55            2 :     ret = GNUNET_PQ_run_sql (pg->conn,
      56              :                              schemadash);
      57            2 :     GNUNET_free (schemadash);
      58              :   }
      59            2 :   GNUNET_free (sp);
      60            2 :   if (GNUNET_OK == ret)
      61              :   {
      62              :     char *procfile;
      63              : 
      64            2 :     GNUNET_asprintf (&procfile,
      65              :                      "%s-procedures",
      66              :                      schema);
      67            2 :     ret = GNUNET_PQ_exec_sql (pg->conn,
      68              :                               procfile);
      69              :     /* $SCHEMA-procedures MAY not exist, so only check for hard error */
      70            2 :     GNUNET_break (GNUNET_SYSERR != ret);
      71            2 :     if (GNUNET_NO == ret)
      72            2 :       ret = GNUNET_OK;
      73            2 :     GNUNET_free (procfile);
      74              :   }
      75              :   {
      76            2 :     struct GNUNET_PQ_ExecuteStatement es_restore[] = {
      77            2 :       GNUNET_PQ_make_try_execute ("SET search_path TO exchange;"),
      78              :       GNUNET_PQ_EXECUTE_STATEMENT_END
      79              :     };
      80              : 
      81              :     /* This MUST succeed, otherwise we'll have a bad search_path
      82              :        and then anything could happen... */
      83            2 :     GNUNET_assert (GNUNET_OK ==
      84              :                    GNUNET_PQ_exec_statements (pg->conn,
      85              :                                               es_restore));
      86              :   }
      87            2 :   return ret;
      88              : }