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 (3841B)


      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 <pthread.h>
     25 #include "taler/taler_fakebank_lib.h"
     26 #include "taler/taler_bank_service.h"
     27 #include "taler/taler_mhd_lib.h"
     28 #include <gnunet/gnunet_mhd_compat.h>
     29 #include "fakebank.h"
     30 #include "fakebank_common_lookup.h"
     31 #include "fakebank_common_lp.h"
     32 #include "fakebank_common_parser.h"
     33 #include "fakebank_twg_get_transfers.h"
     34 
     35 
     36 MHD_RESULT
     37 TALER_FAKEBANK_twg_get_transfers_id_ (
     38   struct TALER_FAKEBANK_Handle *h,
     39   struct MHD_Connection *connection,
     40   const char *account,
     41   const char *id,
     42   void **con_cls)
     43 {
     44   struct Account *acc;
     45   unsigned long long row_id;
     46   json_t *trans;
     47 
     48   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
     49               "Handling /transfers/%s connection %p\n",
     50               id,
     51               connection);
     52   {
     53     char dummy;
     54 
     55     if (1 !=
     56         sscanf (id,
     57                 "%llu%c",
     58                 &row_id,
     59                 &dummy))
     60     {
     61       return TALER_MHD_reply_with_error (
     62         connection,
     63         MHD_HTTP_BAD_REQUEST,
     64         TALER_EC_GENERIC_PARAMETER_MALFORMED,
     65         id);
     66     }
     67   }
     68   GNUNET_assert (0 ==
     69                  pthread_mutex_lock (&h->big_lock));
     70   acc = TALER_FAKEBANK_lookup_account_ (h,
     71                                         account,
     72                                         NULL);
     73   if (NULL == acc)
     74   {
     75     GNUNET_assert (0 ==
     76                    pthread_mutex_unlock (&h->big_lock));
     77     return TALER_MHD_reply_with_error (connection,
     78                                        MHD_HTTP_NOT_FOUND,
     79                                        TALER_EC_BANK_UNKNOWN_ACCOUNT,
     80                                        account);
     81   }
     82   {
     83     struct Transaction *t = h->transactions[row_id % h->ram_limit];
     84     char *credit_payto;
     85 
     86     if (t->debit_account != acc)
     87     {
     88       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     89                   "Invalid ID specified, transaction %llu not with account %s!\n",
     90                   (unsigned long long) row_id,
     91                   account);
     92       GNUNET_assert (0 ==
     93                      pthread_mutex_unlock (&h->big_lock));
     94       return MHD_NO;
     95     }
     96     GNUNET_asprintf (&credit_payto,
     97                      "payto://x-taler-bank/localhost/%s?receiver-name=%s",
     98                      t->credit_account->account_name,
     99                      t->credit_account->receiver_name);
    100     trans = GNUNET_JSON_PACK (
    101       GNUNET_JSON_pack_data_auto (
    102         "wtid",
    103         &t->subject.debit.wtid),
    104       GNUNET_JSON_pack_string (
    105         "exchange_base_url",
    106         t->subject.debit.exchange_base_url),
    107       GNUNET_JSON_pack_timestamp (
    108         "timestamp",
    109         t->date),
    110       TALER_JSON_pack_amount (
    111         "amount",
    112         &t->amount),
    113       GNUNET_JSON_pack_string (
    114         "credit_account",
    115         credit_payto),
    116       GNUNET_JSON_pack_string (
    117         "status",
    118         "success"));
    119     GNUNET_assert (NULL != trans);
    120     GNUNET_free (credit_payto);
    121   }
    122   GNUNET_assert (0 ==
    123                  pthread_mutex_unlock (&h->big_lock));
    124   return TALER_MHD_reply_json (
    125     connection,
    126     trans,
    127     MHD_HTTP_OK);
    128 }