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Base system with REST service to issue digital coins, run by the payment service provider
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taler-auditor-httpd_coin-inconsistency-get.c (4135B)


      1 /*
      2    This file is part of TALER
      3    Copyright (C) 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 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 #include "taler/platform.h"
     17 #include <gnunet/gnunet_util_lib.h>
     18 #include <gnunet/gnunet_json_lib.h>
     19 #include <jansson.h>
     20 #include <microhttpd.h>
     21 #include <pthread.h>
     22 #include "taler/taler_json_lib.h"
     23 #include "taler/taler_mhd_lib.h"
     24 #include "taler-auditor-httpd.h"
     25 #include "taler-auditor-httpd_coin-inconsistency-get.h"
     26 
     27 
     28 /**
     29  * Add deposit confirmation to the list.
     30  *
     31  * @param[in,out] cls a `json_t *` array to extend
     32  * @param serial_id location of the @a dc in the database
     33  * @param dc struct of inconsistencies
     34  * @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop iterating
     35  */
     36 static enum GNUNET_GenericReturnValue
     37 add_coin_inconsistency (
     38   void *cls,
     39   uint64_t serial_id,
     40   const struct TALER_AUDITORDB_CoinInconsistency *dc)
     41 {
     42   json_t *list = cls;
     43   json_t *obj;
     44 
     45   obj = GNUNET_JSON_PACK (
     46     GNUNET_JSON_pack_string ("operation", dc->operation),
     47     TALER_JSON_pack_amount ("exchange_amount", &dc->exchange_amount),
     48     TALER_JSON_pack_amount ("auditor_amount", &dc->auditor_amount),
     49     GNUNET_JSON_pack_data_auto ("coin_pub",&dc->coin_pub),
     50     GNUNET_JSON_pack_bool ("profitable", dc->profitable)
     51     );
     52   GNUNET_break (0 ==
     53                 json_array_append_new (list,
     54                                        obj));
     55   return GNUNET_OK;
     56 }
     57 
     58 
     59 MHD_RESULT
     60 TAH_COIN_INCONSISTENCY_handler_get (
     61   struct TAH_RequestHandler *rh,
     62   struct MHD_Connection *connection,
     63   void **connection_cls,
     64   const char *upload_data,
     65   size_t *upload_data_size,
     66   const char *const args[])
     67 {
     68   json_t *ja;
     69   enum GNUNET_DB_QueryStatus qs;
     70   int64_t limit = -20;
     71   uint64_t offset;
     72   bool return_suppressed = false;
     73 
     74   if (GNUNET_SYSERR ==
     75       TAH_plugin->preflight (TAH_plugin->cls))
     76   {
     77     GNUNET_break (0);
     78     return TALER_MHD_reply_with_error (connection,
     79                                        MHD_HTTP_INTERNAL_SERVER_ERROR,
     80                                        TALER_EC_GENERIC_DB_SETUP_FAILED,
     81                                        NULL);
     82   }
     83   TALER_MHD_parse_request_snumber (connection,
     84                                    "limit",
     85                                    &limit);
     86   if (limit < 0)
     87     offset = INT64_MAX;
     88   else
     89     offset = 0;
     90   TALER_MHD_parse_request_number (connection,
     91                                   "offset",
     92                                   &offset);
     93   {
     94     const char *ret_s = MHD_lookup_connection_value (connection,
     95                                                      MHD_GET_ARGUMENT_KIND,
     96                                                      "return_suppressed");
     97     if (ret_s != NULL && strcmp (ret_s, "true") == 0)
     98     {
     99       return_suppressed = true;
    100     }
    101   }
    102   ja = json_array ();
    103   GNUNET_break (NULL != ja);
    104   qs = TAH_plugin->get_coin_inconsistency (
    105     TAH_plugin->cls,
    106     limit,
    107     offset,
    108     return_suppressed,
    109     &add_coin_inconsistency,
    110     ja);
    111   if (0 > qs)
    112   {
    113     GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR == qs);
    114     json_decref (ja);
    115     TALER_LOG_WARNING (
    116       "Failed to handle GET /coin-inconsistency in database\n");
    117     return TALER_MHD_reply_with_error (connection,
    118                                        MHD_HTTP_INTERNAL_SERVER_ERROR,
    119                                        TALER_EC_GENERIC_DB_FETCH_FAILED,
    120                                        "coin-inconsistency");
    121   }
    122   return TALER_MHD_REPLY_JSON_PACK (
    123     connection,
    124     MHD_HTTP_OK,
    125     GNUNET_JSON_pack_array_steal ("coin_inconsistency",
    126                                   ja));
    127 }