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/*
This file is part of TALER
Copyright (C) 2014-2018 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"
struct StatusState
{
/**
* Label to the command which created the reserve to check,
* needed to resort the reserve key.
*/
const char *reserve_reference;
/**
* Handle to a /reserve/status operation.
*/
struct TALER_EXCHANGE_ReserveStatusHandle *rsh;
/**
* Expected reserve balance.
*/
const char *expected_balance;
/**
* Expected HTTP response code.
*/
unsigned int expected_response_code;
/**
* Handle to the exchange.
*/
struct TALER_EXCHANGE_Handle *exchange;
/**
* Interpreter state.
*/
struct TALER_TESTING_Interpreter *is;
};
/**
* Check exchange returned expected values.
*
* @param cls closure
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for
* successful status request 0 if the exchange's reply is
* bogus (fails to follow the protocol)
* @param ec taler-specific error code, #TALER_EC_NONE on success
* @param[in] json original response in JSON format (useful only
* for diagnostics)
* @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
*/
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\n",
http_status);
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\n");
TALER_TESTING_interpreter_fail (ss->is);
return;
}
/**
* Fixme: need a way to check if 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).
*/
TALER_TESTING_interpreter_next (ss->is);
}
/**
* Run the command.
*
* @param cls closure, typically a #struct WireState.
* @param cmd the command to execute, a /wire one.
* @param i the interpreter state.
*/
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;
struct TALER_ReservePrivateKeyP *reserve_priv;
struct TALER_ReservePublicKeyP reserve_pub;
ss->is = is;
GNUNET_assert (NULL != ss->reserve_reference);
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_priv (create_reserve,
0,
&reserve_priv))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
GNUNET_CRYPTO_eddsa_key_get_public (&reserve_priv->eddsa_priv,
&reserve_pub.eddsa_pub);
ss->rsh
= TALER_EXCHANGE_reserve_status (ss->exchange,
&reserve_pub,
&reserve_status_cb,
ss);
}
/**
* Cleanup the state.
*
* @param cls closure, typically a #struct WireState.
* @param cmd the command which is being cleaned up.
*/
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 exchange the exchange to connect to.
* @param reserve_reference reference to the reserve to check.
* @param expected_balance balance expected to be at the referenced reserve.
* @param expected_response_code expected HTTP response code.
*
* @return the command to be executed by the interpreter.
*/
struct TALER_TESTING_Command
TALER_TESTING_cmd_status (const char *label,
struct TALER_EXCHANGE_Handle *exchange,
const char *reserve_reference,
const char *expected_balance,
unsigned int expected_response_code)
{
struct TALER_TESTING_Command cmd;
struct StatusState *ss;
ss = GNUNET_new (struct StatusState);
ss->exchange = exchange;
ss->reserve_reference = reserve_reference;
ss->expected_balance = expected_balance;
ss->expected_response_code = expected_response_code;
cmd.cls = ss;
cmd.label = label;
cmd.run = &status_run;
cmd.cleanup = &status_cleanup;
return cmd;
}
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