/*
This file is part of TALER
Copyright (C) 2020, 2021, 2022 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU Affero 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along with
TALER; see the file COPYING. If not, see
*/
/**
* @file taler-exchange-httpd_management_wire_fees.c
* @brief Handle request to add wire fee details
* @author Christian Grothoff
*/
#include "platform.h"
#include
#include
#include
#include
#include
#include "taler_json_lib.h"
#include "taler_mhd_lib.h"
#include "taler_signatures.h"
#include "taler-exchange-httpd_management.h"
#include "taler-exchange-httpd_responses.h"
#include "taler-exchange-httpd_wire.h"
/**
* Closure for the #add_fee transaction.
*/
struct AddFeeContext
{
/**
* Fee's signature affirming the #TALER_SIGNATURE_MASTER_WIRE_FEES operation.
*/
struct TALER_MasterSignatureP master_sig;
/**
* Wire method this is about.
*/
const char *wire_method;
/**
* Starting period.
*/
struct GNUNET_TIME_Timestamp start_time;
/**
* End of period.
*/
struct GNUNET_TIME_Timestamp end_time;
/**
* Wire fee amounts.
*/
struct TALER_WireFeeSet fees;
};
/**
* Function implementing database transaction to add a fee. Runs the
* transaction logic; IF it returns a non-error code, the transaction logic
* MUST NOT queue a MHD response. IF it returns an hard error, the
* transaction logic MUST queue a MHD response and set @a mhd_ret. IF it
* returns the soft error code, the function MAY be called again to retry and
* MUST not queue a MHD response.
*
* @param cls closure with a `struct AddFeeContext`
* @param connection MHD request which triggered the transaction
* @param[out] mhd_ret set to MHD response status for @a connection,
* if transaction failed (!)
* @return transaction status
*/
static enum GNUNET_DB_QueryStatus
add_fee (void *cls,
struct MHD_Connection *connection,
MHD_RESULT *mhd_ret)
{
struct AddFeeContext *afc = cls;
enum GNUNET_DB_QueryStatus qs;
struct TALER_WireFeeSet fees;
qs = TEH_plugin->lookup_wire_fee_by_time (
TEH_plugin->cls,
afc->wire_method,
afc->start_time,
afc->end_time,
&fees);
if (qs < 0)
{
if (GNUNET_DB_STATUS_SOFT_ERROR == qs)
return qs;
GNUNET_break (0);
*mhd_ret = TALER_MHD_reply_with_error (connection,
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_GENERIC_DB_FETCH_FAILED,
"lookup wire fee");
return qs;
}
if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS != qs)
{
if ( (GNUNET_OK ==
TALER_amount_is_valid (&fees.wire)) &&
(0 ==
TALER_wire_fee_set_cmp (&fees,
&afc->fees)) )
{
/* this will trigger the 'success' response */
return GNUNET_DB_STATUS_SUCCESS_NO_RESULTS;
}
else
{
*mhd_ret = TALER_MHD_reply_with_error (
connection,
MHD_HTTP_CONFLICT,
TALER_EC_EXCHANGE_MANAGEMENT_WIRE_FEE_MISMATCH,
NULL);
}
return GNUNET_DB_STATUS_HARD_ERROR;
}
qs = TEH_plugin->insert_wire_fee (
TEH_plugin->cls,
afc->wire_method,
afc->start_time,
afc->end_time,
&afc->fees,
&afc->master_sig);
if (qs < 0)
{
if (GNUNET_DB_STATUS_SOFT_ERROR == qs)
return qs;
GNUNET_break (0);
*mhd_ret = TALER_MHD_reply_with_error (connection,
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_GENERIC_DB_STORE_FAILED,
"insert fee");
return qs;
}
return qs;
}
MHD_RESULT
TEH_handler_management_post_wire_fees (
struct MHD_Connection *connection,
const json_t *root)
{
struct AddFeeContext afc;
struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_fixed_auto ("master_sig",
&afc.master_sig),
GNUNET_JSON_spec_string ("wire_method",
&afc.wire_method),
GNUNET_JSON_spec_timestamp ("fee_start",
&afc.start_time),
GNUNET_JSON_spec_timestamp ("fee_end",
&afc.end_time),
TALER_JSON_spec_amount ("wire_fee",
TEH_currency,
&afc.fees.wire),
TALER_JSON_spec_amount ("closing_fee",
TEH_currency,
&afc.fees.closing),
GNUNET_JSON_spec_end ()
};
{
enum GNUNET_GenericReturnValue res;
res = TALER_MHD_parse_json_data (connection,
root,
spec);
if (GNUNET_SYSERR == res)
return MHD_NO; /* hard failure */
if (GNUNET_NO == res)
return MHD_YES; /* failure */
}
TEH_METRICS_num_verifications[TEH_MT_SIGNATURE_EDDSA]++;
if (GNUNET_OK !=
TALER_exchange_offline_wire_fee_verify (
afc.wire_method,
afc.start_time,
afc.end_time,
&afc.fees,
&TEH_master_public_key,
&afc.master_sig))
{
/* signature invalid */
GNUNET_break_op (0);
return TALER_MHD_reply_with_error (
connection,
MHD_HTTP_FORBIDDEN,
TALER_EC_EXCHANGE_MANAGEMENT_WIRE_FEE_SIGNATURE_INVALID,
NULL);
}
{
enum GNUNET_GenericReturnValue res;
MHD_RESULT ret;
res = TEH_DB_run_transaction (connection,
"add wire fee",
TEH_MT_REQUEST_OTHER,
&ret,
&add_fee,
&afc);
if (GNUNET_SYSERR == res)
return ret;
}
TEH_wire_update_state ();
return TALER_MHD_reply_static (
connection,
MHD_HTTP_NO_CONTENT,
NULL,
NULL,
0);
}
/* end of taler-exchange-httpd_management_wire_fees.c */