exchange

Base system with REST service to issue digital coins, run by the payment service provider
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fakebank_twg_get_transfers_id.c (3869B)


      1 /*
      2   This file is part of TALER
      3   (C) 2024 Taler Systems SA
      4 
      5   TALER is free software; you can redistribute it and/or
      6   modify it under the terms of the GNU General Public License
      7   as published by the Free Software Foundation; either version 3,
      8   or (at your option) any later version.
      9 
     10   TALER is distributed in the hope that it will be useful,
     11   but WITHOUT ANY WARRANTY; without even the implied warranty of
     12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13   GNU General Public License for more details.
     14 
     15   You should have received a copy of the GNU General Public
     16   License along with TALER; see the file COPYING.  If not,
     17   see <http://www.gnu.org/licenses/>
     18 */
     19 /**
     20  * @file bank-lib/fakebank_twg_get_transfers_id.c
     21  * @brief routines to return outgoing transfer details
     22  * @author Christian Grothoff <christian@grothoff.org>
     23  */
     24 #include "taler/platform.h"
     25 #include <pthread.h>
     26 #include "taler/taler_fakebank_lib.h"
     27 #include "taler/taler_bank_service.h"
     28 #include "taler/taler_mhd_lib.h"
     29 #include <gnunet/gnunet_mhd_compat.h>
     30 #include "fakebank.h"
     31 #include "fakebank_common_lookup.h"
     32 #include "fakebank_common_lp.h"
     33 #include "fakebank_common_parser.h"
     34 #include "fakebank_twg_get_transfers.h"
     35 
     36 
     37 MHD_RESULT
     38 TALER_FAKEBANK_twg_get_transfers_id_ (
     39   struct TALER_FAKEBANK_Handle *h,
     40   struct MHD_Connection *connection,
     41   const char *account,
     42   const char *id,
     43   void **con_cls)
     44 {
     45   struct Account *acc;
     46   unsigned long long row_id;
     47   json_t *trans;
     48 
     49   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
     50               "Handling /transfers/%s connection %p\n",
     51               id,
     52               connection);
     53   {
     54     char dummy;
     55 
     56     if (1 !=
     57         sscanf (id,
     58                 "%llu%c",
     59                 &row_id,
     60                 &dummy))
     61     {
     62       return TALER_MHD_reply_with_error (
     63         connection,
     64         MHD_HTTP_BAD_REQUEST,
     65         TALER_EC_GENERIC_PARAMETER_MALFORMED,
     66         id);
     67     }
     68   }
     69   GNUNET_assert (0 ==
     70                  pthread_mutex_lock (&h->big_lock));
     71   acc = TALER_FAKEBANK_lookup_account_ (h,
     72                                         account,
     73                                         NULL);
     74   if (NULL == acc)
     75   {
     76     GNUNET_assert (0 ==
     77                    pthread_mutex_unlock (&h->big_lock));
     78     return TALER_MHD_reply_with_error (connection,
     79                                        MHD_HTTP_NOT_FOUND,
     80                                        TALER_EC_BANK_UNKNOWN_ACCOUNT,
     81                                        account);
     82   }
     83   {
     84     struct Transaction *t = h->transactions[row_id % h->ram_limit];
     85     char *credit_payto;
     86 
     87     if (t->debit_account != acc)
     88     {
     89       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     90                   "Invalid ID specified, transaction %llu not with account %s!\n",
     91                   (unsigned long long) row_id,
     92                   account);
     93       GNUNET_assert (0 ==
     94                      pthread_mutex_unlock (&h->big_lock));
     95       return MHD_NO;
     96     }
     97     GNUNET_asprintf (&credit_payto,
     98                      "payto://x-taler-bank/localhost/%s?receiver-name=%s",
     99                      t->credit_account->account_name,
    100                      t->credit_account->receiver_name);
    101     trans = GNUNET_JSON_PACK (
    102       GNUNET_JSON_pack_data_auto (
    103         "wtid",
    104         &t->subject.debit.wtid),
    105       GNUNET_JSON_pack_string (
    106         "exchange_base_url",
    107         t->subject.debit.exchange_base_url),
    108       GNUNET_JSON_pack_timestamp (
    109         "timestamp",
    110         t->date),
    111       TALER_JSON_pack_amount (
    112         "amount",
    113         &t->amount),
    114       GNUNET_JSON_pack_string (
    115         "credit_account",
    116         credit_payto),
    117       GNUNET_JSON_pack_string (
    118         "status",
    119         "success"));
    120     GNUNET_assert (NULL != trans);
    121     GNUNET_free (credit_payto);
    122   }
    123   GNUNET_assert (0 ==
    124                  pthread_mutex_unlock (&h->big_lock));
    125   return TALER_MHD_reply_json (
    126     connection,
    127     trans,
    128     MHD_HTTP_OK);
    129 }