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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_get-monitoring-early-aggregation.c (4270B)


      1 /*
      2    This file is part of TALER
      3    Copyright (C) 2025 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 <gnunet/gnunet_util_lib.h>
     17 #include <gnunet/gnunet_json_lib.h>
     18 #include <jansson.h>
     19 #include <microhttpd.h>
     20 #include <pthread.h>
     21 #include "taler/taler_json_lib.h"
     22 #include "taler/taler_mhd_lib.h"
     23 #include "taler-auditor-httpd.h"
     24 #include "taler-auditor-httpd_get-monitoring-early-aggregation.h"
     25 #include "auditor-database/preflight.h"
     26 #include "auditor-database/select_early_aggregations.h"
     27 
     28 
     29 /**
     30  * Add early aggregation record to the list.
     31  *
     32  * @param[in,out] cls a `json_t *` array to extend
     33  * @param ea early aggregation record
     34  * @return #GNUNET_OK
     35  */
     36 static enum GNUNET_GenericReturnValue
     37 add_early_aggregation (
     38   void *cls,
     39   const struct TALER_AUDITORDB_EarlyAggregation *ea)
     40 {
     41   json_t *list = cls;
     42   json_t *obj;
     43 
     44   obj = GNUNET_JSON_PACK (
     45     GNUNET_JSON_pack_uint64 ("row_id",
     46                              ea->row_id),
     47     GNUNET_JSON_pack_uint64 ("batch_deposit_serial_id",
     48                              ea->batch_deposit_serial_id),
     49     GNUNET_JSON_pack_uint64 ("tracking_serial_id",
     50                              ea->tracking_serial_id),
     51     TALER_JSON_pack_amount ("balance",
     52                             &ea->total),
     53     GNUNET_JSON_pack_bool ("suppressed",
     54                            ea->suppressed)
     55     );
     56   GNUNET_break (0 ==
     57                 json_array_append_new (list,
     58                                        obj));
     59   return GNUNET_OK;
     60 }
     61 
     62 
     63 MHD_RESULT
     64 TAH_get_monitoring_early_aggregation (
     65   struct TAH_RequestHandler *rh,
     66   struct MHD_Connection *connection,
     67   void **connection_cls,
     68   const char *upload_data,
     69   size_t *upload_data_size,
     70   const char *const args[])
     71 {
     72   json_t *ja;
     73   enum GNUNET_DB_QueryStatus qs;
     74   int64_t limit = -20;
     75   uint64_t offset;
     76   bool return_suppressed = false;
     77 
     78   if (GNUNET_SYSERR ==
     79       TALER_AUDITORDB_preflight (TAH_apg))
     80   {
     81     GNUNET_break (0);
     82     return TALER_MHD_reply_with_error (connection,
     83                                        MHD_HTTP_INTERNAL_SERVER_ERROR,
     84                                        TALER_EC_GENERIC_DB_SETUP_FAILED,
     85                                        NULL);
     86   }
     87   TALER_MHD_parse_request_snumber (connection,
     88                                    "limit",
     89                                    &limit);
     90   if (limit < 0)
     91     offset = INT64_MAX;
     92   else
     93     offset = 0;
     94   TALER_MHD_parse_request_number (connection,
     95                                   "offset",
     96                                   &offset);
     97   {
     98     const char *ret_s = MHD_lookup_connection_value (connection,
     99                                                      MHD_GET_ARGUMENT_KIND,
    100                                                      "return_suppressed");
    101     if ( (NULL != ret_s) &&
    102          (0 == strcmp (ret_s,
    103                        "true")) )
    104     {
    105       return_suppressed = true;
    106     }
    107   }
    108   ja = json_array ();
    109   GNUNET_break (NULL != ja);
    110   qs = TALER_AUDITORDB_select_early_aggregations (
    111     TAH_apg,
    112     limit,
    113     offset,
    114     return_suppressed,
    115     &add_early_aggregation,
    116     ja);
    117   if (0 > qs)
    118   {
    119     GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR == qs);
    120     json_decref (ja);
    121     TALER_LOG_WARNING (
    122       "Failed to handle GET /early-aggregation in database\n");
    123     return TALER_MHD_reply_with_error (connection,
    124                                        MHD_HTTP_INTERNAL_SERVER_ERROR,
    125                                        TALER_EC_GENERIC_DB_FETCH_FAILED,
    126                                        "select_early_aggregations");
    127   }
    128   return TALER_MHD_REPLY_JSON_PACK (
    129     connection,
    130     MHD_HTTP_OK,
    131     GNUNET_JSON_pack_array_steal ("early_aggregations",
    132                                   ja));
    133 }