Line data    Source code

       1             : /*
       2             :   This file is part of TALER
       3             :   Copyright (C) 2020 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 yna.c
      18             :  * @brief Utility functions for yes/no/all filters
      19             :  * @author Jonathan Buchanan
      20             :  */
      21             : #include "platform.h"
      22             : #include "taler_util.h"
      23             : 
      24             : 
      25             : /**
      26             :  * Convert query argument to @a yna value.
      27             :  *
      28             :  * @param connection connection to take query argument from
      29             :  * @param arg argument to try for
      30             :  * @param default_val value to assign if the argument is not present
      31             :  * @param[out] yna value to set
      32             :  * @return true on success, false if the parameter was malformed
      33             :  */
      34             : bool
      35           0 : TALER_arg_to_yna (struct MHD_Connection *connection,
      36             :                   const char *arg,
      37             :                   enum TALER_EXCHANGE_YesNoAll default_val,
      38             :                   enum TALER_EXCHANGE_YesNoAll *yna)
      39             : {
      40             :   const char *str;
      41             : 
      42           0 :   str = MHD_lookup_connection_value (connection,
      43             :                                      MHD_GET_ARGUMENT_KIND,
      44             :                                      arg);
      45           0 :   if (NULL == str)
      46             :   {
      47           0 :     *yna = default_val;
      48           0 :     return true;
      49             :   }
      50           0 :   if (0 == strcasecmp (str, "yes"))
      51             :   {
      52           0 :     *yna = TALER_EXCHANGE_YNA_YES;
      53           0 :     return true;
      54             :   }
      55           0 :   if (0 == strcasecmp (str, "no"))
      56             :   {
      57           0 :     *yna = TALER_EXCHANGE_YNA_NO;
      58           0 :     return true;
      59             :   }
      60           0 :   if (0 == strcasecmp (str, "all"))
      61             :   {
      62           0 :     *yna = TALER_EXCHANGE_YNA_ALL;
      63           0 :     return true;
      64             :   }
      65           0 :   return false;
      66             : }
      67             : 
      68             : 
      69             : /**
      70             :  * Convert YNA value to a string.
      71             :  *
      72             :  * @param yna value to convert
      73             :  * @return string representation ("yes"/"no"/"all").
      74             :  */
      75             : const char *
      76           0 : TALER_yna_to_string (enum TALER_EXCHANGE_YesNoAll yna)
      77             : {
      78           0 :   switch (yna)
      79             :   {
      80           0 :   case TALER_EXCHANGE_YNA_YES:
      81           0 :     return "yes";
      82           0 :   case TALER_EXCHANGE_YNA_NO:
      83           0 :     return "no";
      84           0 :   case TALER_EXCHANGE_YNA_ALL:
      85           0 :     return "all";
      86             :   }
      87           0 :   GNUNET_assert (0);
      88             : }