exchange/src/lib/exchange_api_common.h

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/*
This file is part of TALER
Copyright (C) 2015-2022 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
TALER is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
TALER; see the file COPYING. If not, see
<http://www.gnu.org/licenses/>
*/
/**
* @file lib/exchange_api_common.h
* @brief common functions for the exchange API
* @author Christian Grothoff
*/
#ifndef EXCHANGE_API_COMMON_H
#define EXCHANGE_API_COMMON_H
#include "taler_json_lib.h"
/**
* Check proof of a purse creation conflict.
*
* @param cpurse_sig conflicting signature (must
* not match the signature from the proof)
* @param purse_pub the public key (must match
* the signature from the proof)
* @param proof the proof to check
* @return #GNUNET_OK if the @a proof is OK for @a purse_pub and conflicts with @a purse_sig
*/
enum GNUNET_GenericReturnValue
TALER_EXCHANGE_check_purse_create_conflict_ (
const struct TALER_PurseContractSignatureP *cpurse_sig,
const struct TALER_PurseContractPublicKeyP *purse_pub,
const json_t *proof);
/**
* Check proof of a purse merge conflict.
*
* @param cmerge_sig conflicting signature (must
* not match the signature from the proof)
* @param merge_pub the public key (must match
* the signature from the proof)
* @param exchange_url the base URL of this exchange
* @param proof the proof to check
* @return #GNUNET_OK if the @a proof is OK for @a purse_pub and conflicts with @a purse_sig
*/
enum GNUNET_GenericReturnValue
TALER_EXCHANGE_check_purse_merge_conflict_ (
const struct TALER_PurseMergeSignatureP *cmerge_sig,
const struct TALER_PurseMergePublicKeyP *merge_pub,
const struct TALER_PurseContractPublicKeyP *purse_pub,
const char *exchange_url,
const json_t *proof);
/**
* Check proof of a contract conflict.
*
* DESIGN-FIXME: this 'proof' doesn't really proof a conflict!
*
* @param ccontract_sig conflicting signature (must
* not match the signature from the proof)
* @param purse_pub public key of the purse
* @param exchange_url the base URL of this exchange
* @param proof the proof to check
* @return #GNUNET_OK if the @a proof is OK for @a purse_pub and conflicts with @a purse_sig
*/
enum GNUNET_GenericReturnValue
TALER_EXCHANGE_check_purse_econtract_conflict_ (
const struct TALER_PurseContractSignatureP *ccontract_sig,
const struct TALER_PurseContractPublicKeyP *purse_pub,
const json_t *proof);
#endif