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/*
This file is part of TALER
(C) 2014-2021 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 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 taler-merchant-httpd_private-get-transfers.c
* @brief implement API for obtaining a list of wire transfers
* @author Marcello Stanisci
* @author Christian Grothoff
*/
#include "platform.h"
#include <jansson.h>
#include <taler/taler_json_lib.h>
#include "taler-merchant-httpd_private-get-transfers.h"
/**
* Function called with information about a wire transfer.
* Generate a response (array entry) based on the given arguments.
*
* @param cls closure with a `json_t *` array to build up the response
* @param credit_amount how much was wired to the merchant (minus fees)
* @param wtid wire transfer identifier
* @param payto_uri target account that received the wire transfer
* @param exchange_url base URL of the exchange that made the wire transfer
* @param transfer_serial_id serial number identifying the transfer in the backend
* @param execution_time when did the exchange make the transfer, #GNUNET_TIME_UNIT_FOREVER_ABS
* if it did not yet happen
* @param verified YES if we checked the exchange's answer and liked it,
* NO if we checked the exchange's answer and it is problematic,
* ALL if we did not yet check
* @param confirmed true if the merchant acknowledged the wire transfer reception
*/
static void
transfer_cb (void *cls,
const struct TALER_Amount *credit_amount,
const struct TALER_WireTransferIdentifierRawP *wtid,
struct TALER_FullPayto payto_uri,
const char *exchange_url,
uint64_t transfer_serial_id,
struct GNUNET_TIME_Timestamp execution_time,
bool verified,
bool confirmed)
{
json_t *ja = cls;
json_t *r;
r = GNUNET_JSON_PACK (
TALER_JSON_pack_amount ("credit_amount",
credit_amount),
GNUNET_JSON_pack_data_auto ("wtid",
wtid),
TALER_JSON_pack_full_payto ("payto_uri",
payto_uri),
GNUNET_JSON_pack_string ("exchange_url",
exchange_url),
GNUNET_JSON_pack_uint64 ("transfer_serial_id",
transfer_serial_id),
GNUNET_JSON_pack_bool ("verified",
verified),
GNUNET_JSON_pack_bool ("confirmed",
confirmed),
GNUNET_JSON_pack_allow_null (
GNUNET_JSON_pack_timestamp (
"execution_time",
GNUNET_TIME_absolute_is_never (execution_time.abs_time)
? GNUNET_TIME_UNIT_ZERO_TS /* => field omitted */
: execution_time)) );
GNUNET_assert (0 ==
json_array_append_new (ja,
r));
}
/**
* Manages a GET /private/transfers call.
*
* @param rh context of the handler
* @param connection the MHD connection to handle
* @param[in,out] hc context with further information about the request
* @return MHD result code
*/
MHD_RESULT
TMH_private_get_transfers (const struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
struct TMH_HandlerContext *hc)
{
struct TALER_FullPayto payto_uri;
struct GNUNET_TIME_Timestamp before = GNUNET_TIME_UNIT_FOREVER_TS;
struct GNUNET_TIME_Timestamp after = GNUNET_TIME_UNIT_ZERO_TS;
int64_t limit = -20;
uint64_t offset;
enum TALER_EXCHANGE_YesNoAll verified;
(void) rh;
payto_uri.full_payto
= (char *) MHD_lookup_connection_value (connection,
MHD_GET_ARGUMENT_KIND,
"payto_uri");
{
const char *before_s;
before_s = MHD_lookup_connection_value (connection,
MHD_GET_ARGUMENT_KIND,
"before");
if ( (NULL != before_s) &&
(GNUNET_OK !=
GNUNET_STRINGS_fancy_time_to_timestamp (before_s,
&before)) )
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_GENERIC_PARAMETER_MALFORMED,
"before");
}
{
const char *after_s;
after_s = MHD_lookup_connection_value (connection,
MHD_GET_ARGUMENT_KIND,
"after");
if ( (NULL != after_s) &&
(GNUNET_OK !=
GNUNET_STRINGS_fancy_time_to_timestamp (after_s,
&after)) )
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_GENERIC_PARAMETER_MALFORMED,
"after");
}
TALER_MHD_parse_request_snumber (connection,
"limit",
&limit);
if (limit < 0)
offset = INT64_MAX;
else
offset = 0;
TALER_MHD_parse_request_number (connection,
"offset",
&offset);
if (! (TALER_arg_to_yna (connection,
"verified",
TALER_EXCHANGE_YNA_ALL,
&verified)) )
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_GENERIC_PARAMETER_MALFORMED,
"verified");
TMH_db->preflight (TMH_db->cls);
{
json_t *ja;
enum GNUNET_DB_QueryStatus qs;
ja = json_array ();
GNUNET_assert (NULL != ja);
qs = TMH_db->lookup_transfers (TMH_db->cls,
hc->instance->settings.id,
payto_uri,
before,
after,
limit,
offset,
verified,
&transfer_cb,
ja);
if (0 > qs)
{
/* Simple select queries should not cause serialization issues */
GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR != qs);
/* Always report on hard error as well to enable diagnostics */
GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR == qs);
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_GENERIC_DB_FETCH_FAILED,
"transfers");
}
return TALER_MHD_REPLY_JSON_PACK (
connection,
MHD_HTTP_OK,
GNUNET_JSON_pack_array_steal ("transfers",
ja));
}
}
/* end of taler-merchant-httpd_track-transfer.c */
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