Line data    Source code

       1             : /*
       2             :   This file is part of TALER
       3             :   (C) 2022-2024 Taler Systems SA
       4             : 
       5             :   TALER is free software; you can redistribute it and/or modify it under the
       6             :   terms of the GNU Affero 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 taler-merchant-httpd_private-get-categories-ID.c
      18             :  * @brief implement GET /private/categories/$ID
      19             :  * @author Christian Grothoff
      20             :  */
      21             : #include "platform.h"
      22             : #include "taler-merchant-httpd_private-get-categories-ID.h"
      23             : #include <taler/taler_json_lib.h>
      24             : 
      25             : 
      26             : /**
      27             :  * Handle a GET "/private/categories/$ID" request.
      28             :  *
      29             :  * @param rh context of the handler
      30             :  * @param connection the MHD connection to handle
      31             :  * @param[in,out] hc context with further information about the request
      32             :  * @return MHD result code
      33             :  */
      34             : MHD_RESULT
      35           0 : TMH_private_get_categories_ID (
      36             :   const struct TMH_RequestHandler *rh,
      37             :   struct MHD_Connection *connection,
      38             :   struct TMH_HandlerContext *hc)
      39             : {
      40           0 :   struct TMH_MerchantInstance *mi = hc->instance;
      41             :   enum GNUNET_DB_QueryStatus qs;
      42             :   unsigned long long cnum;
      43             :   char dummy;
      44             :   struct TALER_MERCHANTDB_CategoryDetails cd;
      45           0 :   size_t num_products = 0;
      46           0 :   char *products = NULL;
      47             : 
      48           0 :   GNUNET_assert (NULL != mi);
      49           0 :   GNUNET_assert (NULL != hc->infix);
      50           0 :   if (1 != sscanf (hc->infix,
      51             :                    "%llu%c",
      52             :                    &cnum,
      53             :                    &dummy))
      54             :   {
      55           0 :     GNUNET_break_op (0);
      56           0 :     return TALER_MHD_reply_with_error (
      57             :       connection,
      58             :       MHD_HTTP_BAD_REQUEST,
      59             :       TALER_EC_GENERIC_PARAMETER_MALFORMED,
      60             :       "category_id must be a number");
      61             :   }
      62             : 
      63           0 :   qs = TMH_db->select_category (TMH_db->cls,
      64           0 :                                 mi->settings.id,
      65             :                                 cnum,
      66             :                                 &cd,
      67             :                                 &num_products,
      68             :                                 &products);
      69           0 :   if (0 > qs)
      70             :   {
      71           0 :     GNUNET_break (0);
      72           0 :     return TALER_MHD_reply_with_error (connection,
      73             :                                        MHD_HTTP_INTERNAL_SERVER_ERROR,
      74             :                                        TALER_EC_GENERIC_DB_FETCH_FAILED,
      75             :                                        "select_category");
      76             :   }
      77           0 :   if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs)
      78             :   {
      79           0 :     return TALER_MHD_reply_with_error (connection,
      80             :                                        MHD_HTTP_NOT_FOUND,
      81             :                                        TALER_EC_MERCHANT_GENERIC_CATEGORY_UNKNOWN,
      82           0 :                                        hc->infix);
      83             :   }
      84             :   {
      85             :     MHD_RESULT ret;
      86             :     json_t *jproducts;
      87           0 :     const char *pos = products;
      88             : 
      89           0 :     jproducts = json_array ();
      90           0 :     GNUNET_assert (NULL != jproducts);
      91           0 :     for (unsigned int i = 0; i<num_products; i++)
      92             :     {
      93           0 :       const char *product_id = pos;
      94             :       json_t *jprod;
      95             : 
      96           0 :       pos = pos + strlen (product_id) + 1;
      97           0 :       jprod = GNUNET_JSON_PACK (
      98             :         GNUNET_JSON_pack_string ("product_id",
      99             :                                  product_id));
     100           0 :       GNUNET_assert (0 ==
     101             :                      json_array_append_new (jproducts,
     102             :                                             jprod));
     103             :     }
     104           0 :     GNUNET_free (products);
     105           0 :     ret = TALER_MHD_REPLY_JSON_PACK (
     106             :       connection,
     107             :       MHD_HTTP_OK,
     108             :       GNUNET_JSON_pack_string ("name",
     109             :                                cd.category_name),
     110             :       GNUNET_JSON_pack_allow_null (
     111             :         GNUNET_JSON_pack_object_incref ("name_i18n",
     112             :                                         cd.category_name_i18n)),
     113             :       GNUNET_JSON_pack_array_steal ("products",
     114             :                                     jproducts));
     115           0 :     TALER_MERCHANTDB_category_details_free (&cd);
     116           0 :     return ret;
     117             :   }
     118             : }
     119             : 
     120             : 
     121             : /* end of taler-merchant-httpd_private-get-categories-ID.c */