merchant

Merchant backend to process payments, run by merchants
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taler-merchant-httpd_private-get-otp-devices-ID.c (4021B)


      1 /*
      2   This file is part of TALER
      3   (C) 2022-2024 Taler Systems SA
      4 
      5   TALER is free software; you can redistribute it and/or modify it under the
      6   terms of the GNU Affero 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 /**
     17  * @file taler-merchant-httpd_private-get-otp-devices-ID.c
     18  * @brief implement GET /otp-devices/$ID
     19  * @author Christian Grothoff
     20  */
     21 #include "platform.h"
     22 #include "taler-merchant-httpd_private-get-otp-devices-ID.h"
     23 #include <taler/taler_json_lib.h>
     24 
     25 
     26 /**
     27  * Handle a GET "/otp-devices/$ID" request.
     28  *
     29  * @param rh context of the handler
     30  * @param connection the MHD connection to handle
     31  * @param[in,out] hc context with further information about the request
     32  * @return MHD result code
     33  */
     34 MHD_RESULT
     35 TMH_private_get_otp_devices_ID (const struct TMH_RequestHandler *rh,
     36                                 struct MHD_Connection *connection,
     37                                 struct TMH_HandlerContext *hc)
     38 {
     39   struct TMH_MerchantInstance *mi = hc->instance;
     40   struct TALER_MERCHANTDB_OtpDeviceDetails tp = { 0 };
     41   enum GNUNET_DB_QueryStatus qs;
     42   uint64_t faketime_s
     43     = GNUNET_TIME_timestamp_to_s (GNUNET_TIME_timestamp_get ());
     44   struct GNUNET_TIME_Timestamp my_time;
     45   struct TALER_Amount price;
     46 
     47   TALER_MHD_parse_request_number (connection,
     48                                   "faketime",
     49                                   &faketime_s);
     50   memset (&price,
     51           0,
     52           sizeof (price));
     53   TALER_MHD_parse_request_amount (connection,
     54                                   "price",
     55                                   &price);
     56   my_time = GNUNET_TIME_timestamp_from_s (faketime_s);
     57   GNUNET_assert (NULL != mi);
     58   qs = TMH_db->select_otp (TMH_db->cls,
     59                            mi->settings.id,
     60                            hc->infix,
     61                            &tp);
     62   if (0 > qs)
     63   {
     64     GNUNET_break (0);
     65     return TALER_MHD_reply_with_error (connection,
     66                                        MHD_HTTP_INTERNAL_SERVER_ERROR,
     67                                        TALER_EC_GENERIC_DB_FETCH_FAILED,
     68                                        "select_otp");
     69   }
     70   if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs)
     71   {
     72     return TALER_MHD_reply_with_error (connection,
     73                                        MHD_HTTP_NOT_FOUND,
     74                                        TALER_EC_MERCHANT_GENERIC_OTP_DEVICE_UNKNOWN,
     75                                        hc->infix);
     76   }
     77   {
     78     MHD_RESULT ret;
     79     char *pos_confirmation;
     80 
     81     pos_confirmation = (NULL == tp.otp_key)
     82       ? NULL
     83       : TALER_build_pos_confirmation (tp.otp_key,
     84                                       tp.otp_algorithm,
     85                                       &price,
     86                                       my_time);
     87     /* Note: we deliberately (by design) do not return the otp_key */
     88     ret = TALER_MHD_REPLY_JSON_PACK (
     89       connection,
     90       MHD_HTTP_OK,
     91       GNUNET_JSON_pack_string ("device_description",
     92                                tp.otp_description),
     93       GNUNET_JSON_pack_allow_null (
     94         GNUNET_JSON_pack_string ("otp_code",
     95                                  pos_confirmation)),
     96       GNUNET_JSON_pack_uint64 ("otp_timestamp",
     97                                faketime_s),
     98       GNUNET_JSON_pack_uint64 ("otp_algorithm",
     99                                tp.otp_algorithm),
    100       GNUNET_JSON_pack_uint64 ("otp_ctr",
    101                                tp.otp_ctr));
    102     GNUNET_free (pos_confirmation);
    103     GNUNET_free (tp.otp_description);
    104     GNUNET_free (tp.otp_key);
    105     return ret;
    106   }
    107 }
    108 
    109 
    110 /* end of taler-merchant-httpd_private-get-otp-devices-ID.c */