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/*
This file is part of TALER
Copyright (C) 2023 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 <http://www.gnu.org/licenses/>
*/
/**
* @file taler-exchange-httpd_aml-decisions-get.c
* @brief Return summary information about AML decisions
* @author Christian Grothoff
*/
#include "platform.h"
#include <gnunet/gnunet_util_lib.h>
#include <jansson.h>
#include <microhttpd.h>
#include <pthread.h>
#include "taler_json_lib.h"
#include "taler_mhd_lib.h"
#include "taler_signatures.h"
#include "taler-exchange-httpd.h"
#include "taler_exchangedb_plugin.h"
#include "taler-exchange-httpd_aml-decision.h"
#include "taler-exchange-httpd_metrics.h"
/**
* Maximum number of records we return per request.
*/
#define MAX_RECORDS 1024
/**
* Return AML status.
*
* @param cls closure
* @param row_id current row in AML status table
* @param h_payto account for which the attribute data is stored
* @param threshold currently monthly threshold that would trigger an AML check
* @param status what is the current AML decision
*/
static void
record_cb (
void *cls,
uint64_t row_id,
const struct TALER_PaytoHashP *h_payto,
const struct TALER_Amount *threshold,
enum TALER_AmlDecisionState status)
{
json_t *records = cls;
GNUNET_assert (
0 ==
json_array_append (
records,
GNUNET_JSON_PACK (
GNUNET_JSON_pack_data_auto ("h_payto",
h_payto),
GNUNET_JSON_pack_int64 ("current_state",
status),
TALER_JSON_pack_amount ("threshold",
threshold),
GNUNET_JSON_pack_int64 ("rowid",
row_id)
)));
}
MHD_RESULT
TEH_handler_aml_decisions_get (
struct TEH_RequestContext *rc,
const struct TALER_AmlOfficerPublicKeyP *officer_pub,
const char *const args[])
{
enum TALER_AmlDecisionState decision;
int delta = -20;
unsigned long long start;
const char *state_str = args[0];
if (NULL == state_str)
{
GNUNET_break_op (0);
return TALER_MHD_reply_with_error (rc->connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_GENERIC_ENDPOINT_UNKNOWN,
args[0]);
}
if (0 == strcmp (state_str,
"pending"))
decision = TALER_AML_PENDING;
else if (0 == strcmp (state_str,
"frozen"))
decision = TALER_AML_FROZEN;
else if (0 == strcmp (state_str,
"normal"))
decision = TALER_AML_NORMAL;
else
{
GNUNET_break_op (0);
return TALER_MHD_reply_with_error (rc->connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_GENERIC_ENDPOINT_UNKNOWN,
state_str);
}
if (NULL != args[1])
{
GNUNET_break_op (0);
return TALER_MHD_reply_with_error (rc->connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_GENERIC_ENDPOINT_UNKNOWN,
args[1]);
}
{
const char *p;
p = MHD_lookup_connection_value (rc->connection,
MHD_GET_ARGUMENT_KIND,
"delta");
if (NULL != p)
{
char dummy;
if (1 != sscanf (p,
"%d%c",
&delta,
&dummy))
{
GNUNET_break_op (0);
return TALER_MHD_reply_with_error (rc->connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_GENERIC_PARAMETER_MALFORMED,
"delta");
}
}
if (delta > 0)
start = 0;
else
start = INT64_MAX;
p = MHD_lookup_connection_value (rc->connection,
MHD_GET_ARGUMENT_KIND,
"start");
if (NULL != p)
{
char dummy;
if (1 != sscanf (p,
"%llu%c",
&start,
&dummy))
{
GNUNET_break_op (0);
return TALER_MHD_reply_with_error (rc->connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_GENERIC_PARAMETER_MALFORMED,
"start");
}
}
}
{
json_t *records;
enum GNUNET_DB_QueryStatus qs;
records = json_array ();
GNUNET_assert (NULL != records);
if (INT_MIN == delta)
delta = INT_MIN + 1;
qs = TEH_plugin->select_aml_process (TEH_plugin->cls,
decision,
start,
GNUNET_MIN (MAX_RECORDS,
delta > 0
? delta
: -delta),
delta > 0,
&record_cb,
records);
switch (qs)
{
case GNUNET_DB_STATUS_HARD_ERROR:
case GNUNET_DB_STATUS_SOFT_ERROR:
json_decref (records);
GNUNET_break (0);
return TALER_MHD_reply_with_error (rc->connection,
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_GENERIC_DB_FETCH_FAILED,
NULL);
case GNUNET_DB_STATUS_SUCCESS_NO_RESULTS:
return TALER_MHD_reply_static (
rc->connection,
MHD_HTTP_NO_CONTENT,
NULL,
NULL,
0);
case GNUNET_DB_STATUS_SUCCESS_ONE_RESULT:
break;
}
return TALER_MHD_REPLY_JSON_PACK (
rc->connection,
MHD_HTTP_OK,
GNUNET_JSON_pack_array_steal ("records",
records));
}
}
/* end of taler-exchange-httpd_aml-decisions_get.c */
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