merchant

Merchant backend to process payments, run by merchants
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taler-merchant-httpd_delete-private-products-PRODUCT_ID.c (4254B)

      1 /*
      2   This file is part of TALER
      3   (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 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 src/backend/taler-merchant-httpd_delete-private-products-PRODUCT_ID.c
     18  * @brief implement DELETE /products/$ID
     19  * @author Christian Grothoff
     20  */
     21 #include "platform.h"
     22 #include "taler-merchant-httpd_delete-private-products-PRODUCT_ID.h"
     23 #include <taler/taler_json_lib.h>
     24 #include "merchant-database/delete_product.h"
     25 #include "merchant-database/lookup_product.h"
     26 
     27 
     28 /**
     29  * Handle a DELETE "/products/$ID" request.
     30  *
     31  * @param rh context of the handler
     32  * @param connection the MHD connection to handle
     33  * @param[in,out] hc context with further information about the request
     34  * @return MHD result code
     35  */
     36 enum MHD_Result
     37 TMH_private_delete_products_ID (const struct TMH_RequestHandler *rh,
     38                                 struct MHD_Connection *connection,
     39                                 struct TMH_HandlerContext *hc)
     40 {
     41   struct TMH_MerchantInstance *mi = hc->instance;
     42   enum GNUNET_DB_QueryStatus qs;
     43 
     44   (void) rh;
     45   GNUNET_assert (NULL != mi);
     46   GNUNET_assert (NULL != hc->infix);
     47   qs = TALER_MERCHANTDB_delete_product (TMH_db,
     48                                         mi->settings.id,
     49                                         hc->infix);
     50   switch (qs)
     51   {
     52   case GNUNET_DB_STATUS_HARD_ERROR:
     53     return TALER_MHD_reply_with_error (connection,
     54                                        MHD_HTTP_INTERNAL_SERVER_ERROR,
     55                                        TALER_EC_GENERIC_DB_STORE_FAILED,
     56                                        "delete_product");
     57   case GNUNET_DB_STATUS_SOFT_ERROR:
     58     GNUNET_break (0);
     59     return TALER_MHD_reply_with_error (connection,
     60                                        MHD_HTTP_INTERNAL_SERVER_ERROR,
     61                                        TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE,
     62                                        "delete_product (soft)");
     63   case GNUNET_DB_STATUS_SUCCESS_NO_RESULTS:
     64     {
     65       size_t num_categories = 0;
     66       uint64_t *categories = NULL;
     67 
     68       /* check if deletion must have failed because of locks by
     69          checking if the product exists */
     70       qs = TALER_MERCHANTDB_lookup_product (TMH_db,
     71                                             mi->settings.id,
     72                                             hc->infix,
     73                                             NULL,
     74                                             &num_categories,
     75                                             &categories);
     76       if (GNUNET_DB_STATUS_HARD_ERROR == qs)
     77         return TALER_MHD_reply_with_error (connection,
     78                                            MHD_HTTP_INTERNAL_SERVER_ERROR,
     79                                            TALER_EC_GENERIC_DB_STORE_FAILED,
     80                                            "lookup_product");
     81       if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs)
     82         return TALER_MHD_reply_with_error (connection,
     83                                            MHD_HTTP_NOT_FOUND,
     84                                            TALER_EC_MERCHANT_GENERIC_PRODUCT_UNKNOWN,
     85                                            hc->infix);
     86       GNUNET_free (categories);
     87     }
     88     return TALER_MHD_reply_with_error (
     89       connection,
     90       MHD_HTTP_CONFLICT,
     91       TALER_EC_MERCHANT_PRIVATE_DELETE_PRODUCTS_CONFLICTING_LOCK,
     92       hc->infix);
     93   case GNUNET_DB_STATUS_SUCCESS_ONE_RESULT:
     94     return TALER_MHD_reply_static (connection,
     95                                    MHD_HTTP_NO_CONTENT,
     96                                    NULL,
     97                                    NULL,
     98                                    0);
     99   }
    100   GNUNET_assert (0);
    101   return MHD_NO;
    102 }
    103 
    104 
    105 /* end of taler-merchant-httpd_delete-private-products-PRODUCT_ID.c */