merchant

Merchant backend to process payments, run by merchants
Log | Files | Refs | Submodules | README | LICENSE

select_order_blinded_sigs.h (2206B)

      1 /*
      2    This file is part of TALER
      3    Copyright (C) 2022 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 /**
     17  * @file src/include/merchant-database/select_order_blinded_sigs.h
     18  * @brief Implementation of the select blinded sigs by order_id function for Postgres
     19  * @author Bohdan Potuzhnyi
     20  */
     21 #ifndef MERCHANT_DATABASE_SELECT_ORDER_BLINDED_SIGS_H
     22 #define MERCHANT_DATABASE_SELECT_ORDER_BLINDED_SIGS_H
     23 
     24 #include <taler/taler_util.h>
     25 #include <taler/taler_json_lib.h>
     26 #include "merchantdb_lib.h"
     27 
     28 
     29 struct TALER_MERCHANTDB_PostgresContext;
     30 /* Callback typedefs */
     31 /**
     32  * Typically called by `select_order_blinded_sigs`
     33  *
     34  * @param cls closure
     35  * @param hash hash of the token
     36  * @param blinded_sig blinded signature for the token
     37  */
     38 typedef void
     39 (*TALER_MERCHANTDB_BlindedSigCallback)(
     40   void *cls,
     41   struct GNUNET_HashCode *hash,
     42   struct GNUNET_CRYPTO_BlindedSignature *blinded_sig);
     43 
     44 /**
     45  * Look up the Donau *blinded‐signature* blob we already stored for an
     46  * order (identified by its human-readable `order_id`) and hand it back
     47  * to the caller.
     48  *
     49  * @param pg database context
     50  * @param order_id business-level order identifier
     51  * @param cb callback to be called with the blinded signature and hash
     52  * @param cb_cls callback closure
     53  * @return GNUNET_DB status code
     54  */
     55 enum GNUNET_DB_QueryStatus
     56 TALER_MERCHANTDB_select_order_blinded_sigs (struct TALER_MERCHANTDB_PostgresContext *pg,
     57                                             const char *order_id,
     58                                             TALER_MERCHANTDB_BlindedSigCallback cb,
     59                                             void *cb_cls);
     60 
     61 #endif