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/*
This file is part of TALER
Copyright (C) 2014-2020 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 exchange/testing_api_cmd_status.c
* @brief Implement the /reserve/status test command.
* @author Marcello Stanisci
*/
#include "platform.h"
#include "taler_json_lib.h"
#include <gnunet/gnunet_curl_lib.h>
#include "exchange_api_handle.h"
#include "taler_testing_lib.h"
/**
* State for a "status" CMD.
*/
struct StatusState
{
/**
* Label to the command which created the reserve to check,
* needed to resort the reserve key.
*/
const char *reserve_reference;
/**
* Handle to the "reserve status" operation.
*/
struct TALER_EXCHANGE_ReserveStatusHandle *rsh;
/**
* Expected reserve balance.
*/
const char *expected_balance;
/**
* Expected HTTP response code.
*/
unsigned int expected_response_code;
/**
* Interpreter state.
*/
struct TALER_TESTING_Interpreter *is;
};
/**
* Check that the reserve balance and HTTP response code are
* both acceptable.
*
* @param cls closure.
* @param http_status HTTP response code.
* @param ec taler-specific error code.
* @param balance current balance in the reserve, NULL on error.
* @param history_length number of entries in the transaction
* history, 0 on error.
* @param history detailed transaction history, NULL on error.
*/
static void
reserve_status_cb (void *cls,
unsigned int http_status,
enum TALER_ErrorCode ec,
const json_t *json,
const struct TALER_Amount *balance,
unsigned int history_length,
const struct TALER_EXCHANGE_ReserveHistory *history)
{
struct StatusState *ss = cls;
struct TALER_Amount eb;
ss->rsh = NULL;
if (ss->expected_response_code != http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected HTTP response code: %d in %s:%u\n",
http_status,
__FILE__,
__LINE__);
TALER_TESTING_interpreter_fail (ss->is);
return;
}
GNUNET_assert (GNUNET_OK ==
TALER_string_to_amount (ss->expected_balance,
&eb));
if (0 != TALER_amount_cmp (&eb,
balance))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected amount in reserve: %s\n",
TALER_amount_to_string (balance));
TALER_TESTING_interpreter_fail (ss->is);
return;
}
/**
* TODO (#6049): We should check that reserve history is consistent. Every
* command which relates to reserve 'x' should be added in a linked list of
* all commands that relate to the same reserve 'x'.
*
* API-wise, any command that relates to a reserve should offer a
* method called e.g. "compare_with_history" that takes an element
* of the array returned by "/reserve/status" and checks if that
* element correspond to itself (= the command exposing the check-
* method).
*
* IDEA: Maybe realize this via another trait, some kind of
* "reserve history update trait" which returns information about
* how the command changes the history (provided only by commands
* that change reserve balances)?
*///
TALER_TESTING_interpreter_next (ss->is);
}
/**
* Run the command.
*
* @param cls closure.
* @param cmd the command being executed.
* @param is the interpreter state.
*/
static void
status_run (void *cls,
const struct TALER_TESTING_Command *cmd,
struct TALER_TESTING_Interpreter *is)
{
struct StatusState *ss = cls;
const struct TALER_TESTING_Command *create_reserve;
const struct TALER_ReservePublicKeyP *reserve_pubp;
ss->is = is;
create_reserve
= TALER_TESTING_interpreter_lookup_command (is,
ss->reserve_reference);
if (NULL == create_reserve)
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (GNUNET_OK !=
TALER_TESTING_get_trait_reserve_pub (create_reserve,
0,
&reserve_pubp))
{
GNUNET_break (0);
TALER_LOG_ERROR ("Failed to find reserve_pub for status query\n");
TALER_TESTING_interpreter_fail (is);
return;
}
ss->rsh = TALER_EXCHANGE_reserve_status (is->exchange,
reserve_pubp,
&reserve_status_cb,
ss);
}
/**
* Cleanup the state from a "reserve status" CMD, and possibly
* cancel a pending operation thereof.
*
* @param cls closure.
* @param cmd the command which is being cleaned up.
*/
static void
status_cleanup (void *cls,
const struct TALER_TESTING_Command *cmd)
{
struct StatusState *ss = cls;
if (NULL != ss->rsh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
ss->is->ip,
cmd->label);
TALER_EXCHANGE_reserve_status_cancel (ss->rsh);
ss->rsh = NULL;
}
GNUNET_free (ss);
}
/**
* Create a "reserve status" command.
*
* @param label the command label.
* @param reserve_reference reference to the reserve to check.
* @param expected_balance expected balance for the reserve.
* @param expected_response_code expected HTTP response code.
*
* @return the command.
*/
struct TALER_TESTING_Command
TALER_TESTING_cmd_status (const char *label,
const char *reserve_reference,
const char *expected_balance,
unsigned int expected_response_code)
{
struct StatusState *ss;
GNUNET_assert (NULL != reserve_reference);
ss = GNUNET_new (struct StatusState);
ss->reserve_reference = reserve_reference;
ss->expected_balance = expected_balance;
ss->expected_response_code = expected_response_code;
{
struct TALER_TESTING_Command cmd = {
.cls = ss,
.label = label,
.run = &status_run,
.cleanup = &status_cleanup
};
return cmd;
}
}
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