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Base system with REST service to issue digital coins, run by the payment service provider
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fakebank_common_lookup.c (3456B)

      1 /*
      2   This file is part of TALER
      3   (C) 2016-2023 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_common_lookup.c
     21  * @brief common helper functions related to lookups
     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 
     32 struct WithdrawalOperation *
     33 TALER_FAKEBANK_lookup_withdrawal_operation_ (struct TALER_FAKEBANK_Handle *h,
     34                                              const char *wopid)
     35 {
     36   struct GNUNET_ShortHashCode sh;
     37 
     38   if (NULL == h->wops)
     39     return NULL;
     40   if (GNUNET_OK !=
     41       GNUNET_STRINGS_string_to_data (wopid,
     42                                      strlen (wopid),
     43                                      &sh,
     44                                      sizeof (sh)))
     45   {
     46     GNUNET_break_op (0);
     47     return NULL;
     48   }
     49   return GNUNET_CONTAINER_multishortmap_get (h->wops,
     50                                              &sh);
     51 }
     52 
     53 
     54 struct Account *
     55 TALER_FAKEBANK_lookup_account_ (struct TALER_FAKEBANK_Handle *h,
     56                                 const char *name,
     57                                 const char *receiver_name)
     58 {
     59   struct GNUNET_HashCode hc;
     60   size_t slen;
     61   struct Account *account;
     62 
     63   memset (&hc,
     64           0,
     65           sizeof (hc));
     66   slen = strlen (name);
     67   GNUNET_CRYPTO_hash (name,
     68                       slen,
     69                       &hc);
     70   GNUNET_assert (0 ==
     71                  pthread_mutex_lock (&h->accounts_lock));
     72   account = GNUNET_CONTAINER_multihashmap_get (h->accounts,
     73                                                &hc);
     74   if (NULL == account)
     75   {
     76     if (NULL == receiver_name)
     77     {
     78       GNUNET_assert (0 ==
     79                      pthread_mutex_unlock (&h->accounts_lock));
     80       return NULL;
     81     }
     82     account = GNUNET_new (struct Account);
     83     account->account_name = GNUNET_strdup (name);
     84     account->receiver_name = GNUNET_strdup (receiver_name);
     85     GNUNET_asprintf (&account->payto_uri,
     86                      "payto://x-taler-bank/%s/%s?receiver-name=%s",
     87                      h->hostname,
     88                      account->account_name,
     89                      account->receiver_name);
     90     GNUNET_assert (GNUNET_OK ==
     91                    TALER_amount_set_zero (h->currency,
     92                                           &account->balance));
     93     GNUNET_assert (GNUNET_OK ==
     94                    GNUNET_CONTAINER_multihashmap_put (h->accounts,
     95                                                       &hc,
     96                                                       account,
     97                                                       GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
     98   }
     99   GNUNET_assert (0 ==
    100                  pthread_mutex_unlock (&h->accounts_lock));
    101   return account;
    102 }