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 */