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/*
This file is part of TALER
Copyright (C) 2014--2019 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/test_exchange_api_revocation.c
* @brief testcase to test exchange's HTTP API interface involving payback
* of refreshed coin after revocation of a denomination
* @author Sree Harsha Totakura <sreeharsha@totakura.in>
* @author Christian Grothoff
* @author Marcello Stanisci
*/
#include "platform.h"
#include "taler_util.h"
#include "taler_signatures.h"
#include "taler_exchange_service.h"
#include "taler_json_lib.h"
#include <gnunet/gnunet_util_lib.h>
#include <microhttpd.h>
#include "taler_bank_service.h"
#include "taler_fakebank_lib.h"
#include "taler_testing_lib.h"
/**
* Configuration file we use. One (big) configuration is used
* for the various components for this test.
*/
#define CONFIG_FILE "test_exchange_api.conf"
/**
* URL of the fakebank. Obtained from CONFIG_FILE's
* "exchange-wire-test:BANK_URI" option.
*/
static char *fakebank_url;
/**
* Exchange base URL as it appears in the configuration. Note
* that it might differ from the one where the exchange actually
* listens from.
*/
static char *exchange_url;
/**
* Auditor base URL as it appears in the configuration. Note
* that it might differ from the one where the auditor actually
* listens from.
*/
static char *auditor_url;
/**
* Account number of the exchange at the bank.
*/
#define EXCHANGE_ACCOUNT_NO 2
/**
* Account number of some user.
*/
#define USER_ACCOUNT_NO 42
/**
* User name. Never checked by fakebank.
*/
#define USER_LOGIN_NAME "user42"
/**
* User password. Never checked by fakebank.
*/
#define USER_LOGIN_PASS "pass42"
/**
* Execute the taler-exchange-wirewatch command with
* our configuration file.
*
* @param label label to use for the command.
*/
#define CMD_EXEC_WIREWATCH(label) \
TALER_TESTING_cmd_exec_wirewatch (label, CONFIG_FILE)
/**
* Run wire transfer of funds from some user's account to the
* exchange.
*
* @param label label to use for the command.
* @param amount amount to transfer, i.e. "EUR:1"
*/
#define CMD_TRANSFER_TO_EXCHANGE(label,amount) \
TALER_TESTING_cmd_fakebank_transfer (label, amount, \
fakebank_url, USER_ACCOUNT_NO, \
EXCHANGE_ACCOUNT_NO, \
USER_LOGIN_NAME, USER_LOGIN_PASS, \
exchange_url)
/**
* Main function that will tell the interpreter what commands to
* run.
*
* @param cls closure
*/
static void
run (void *cls,
struct TALER_TESTING_Interpreter *is)
{
struct TALER_TESTING_Command commands[] = {
/**
* Fill reserve with EUR:5.01, as withdraw fee is 1 ct per
* config.
*/
CMD_TRANSFER_TO_EXCHANGE ("create-reserve-1",
"EUR:5.01"),
/**
* Run wire-watch to trigger the reserve creation.
*/
CMD_EXEC_WIREWATCH ("wirewatch-4"),
/* Withdraw a 5 EUR coin, at fee of 1 ct */
TALER_TESTING_cmd_withdraw_amount ("withdraw-coin-1",
"create-reserve-1",
"EUR:5",
MHD_HTTP_OK),
/**
* Try to partially spend (deposit) 1 EUR of the 5 EUR coin
* (in full) (merchant would receive EUR:0.99 due to 1 ct
* deposit fee)
*/
TALER_TESTING_cmd_deposit
("deposit-partial",
"withdraw-coin-1", 0,
TALER_TESTING_make_wire_details (42,
fakebank_url),
"{\"items\":[{\"name\":\"ice cream\",\
\"value\":\"EUR:1\"}]}",
GNUNET_TIME_UNIT_ZERO, "EUR:1", MHD_HTTP_OK),
/**
* Melt SOME of the rest of the coin's value
* (EUR:3.17 = 3x EUR:1.03 + 7x EUR:0.13) */
TALER_TESTING_cmd_refresh_melt
("refresh-melt-1",
"withdraw-coin-1",
MHD_HTTP_OK,
NULL),
/**
* Complete (successful) melt operation, and withdraw the coins
*/
TALER_TESTING_cmd_refresh_reveal
("refresh-reveal-1",
"refresh-melt-1", MHD_HTTP_OK),
/* Make refreshed coin invalid */
TALER_TESTING_cmd_revoke ("revoke-1",
MHD_HTTP_OK,
"refresh-melt-1",
CONFIG_FILE),
/* Refund coin to original coin */
TALER_TESTING_cmd_payback ("payback-1a",
MHD_HTTP_OK,
"refresh-reveal-1#0",
"EUR:1",
"refresh-melt-1"),
TALER_TESTING_cmd_payback ("payback-1b",
MHD_HTTP_OK,
"refresh-reveal-1#1",
"EUR:1",
"refresh-melt-1"),
TALER_TESTING_cmd_payback ("payback-1c",
MHD_HTTP_OK,
"refresh-reveal-1#2",
"EUR:1",
"refresh-melt-1"),
/* Now we have EUR:3.83 EUR back after 3x EUR:1 in paybacks */
/* Melt original coin AGAIN, but only create one 0.1 EUR coin;
This costs EUR:0.03 in refresh and EUR:01 in withdraw fees,
leaving EUR:3.69. */
TALER_TESTING_cmd_refresh_melt
("refresh-melt-2",
"withdraw-coin-1",
MHD_HTTP_OK,
"EUR:0.1",
NULL),
/**
* Complete (successful) melt operation, and withdraw the coins
*/
TALER_TESTING_cmd_refresh_reveal
("refresh-reveal-2",
"refresh-melt-2", MHD_HTTP_OK),
/* Revokes refreshed EUR:0.1 coin */
TALER_TESTING_cmd_revoke ("revoke-2",
MHD_HTTP_OK,
"refresh-reveal-2",
CONFIG_FILE),
/* Revoke also original coin denomination */
TALER_TESTING_cmd_revoke ("revoke-3",
MHD_HTTP_OK,
"withdraw-coin-1",
CONFIG_FILE),
/* Refund coin EUR:0.1 to original coin, creating zombie! */
TALER_TESTING_cmd_payback ("payback-2",
MHD_HTTP_OK,
"refresh-reveal-2",
"EUR:0.1",
"refresh-melt-2"),
/* Due to payback, original coin is now at EUR:3.79 */
/* Refund original (now zombie) coin to reserve */
TALER_TESTING_cmd_payback ("payback-3",
MHD_HTTP_OK,
"withdraw-coin-1",
"EUR:3.79",
NULL),
/* Check the money is back with the reserve */
TALER_TESTING_cmd_status ("payback-reserve-status-1",
"create-reserve-1",
"EUR:3.79",
MHD_HTTP_OK),
TALER_TESTING_cmd_end ()
};
TALER_TESTING_run_with_fakebank (is,
commands,
fakebank_url);
}
int
main (int argc,
char *const *argv)
{
/* These environment variables get in the way... */
unsetenv ("XDG_DATA_HOME");
unsetenv ("XDG_CONFIG_HOME");
GNUNET_log_setup ("test-exchange-api-revocation",
"INFO",
NULL);
if (NULL == (fakebank_url
/* Check fakebank port is available and config cares
* about bank url. */
= TALER_TESTING_prepare_fakebank (CONFIG_FILE,
"account-2")))
return 77;
TALER_TESTING_cleanup_files (CONFIG_FILE);
/* @helpers. Run keyup, create tables, ... Note: it
* fetches the port number from config in order to see
* if it's available. */
switch (TALER_TESTING_prepare_exchange (CONFIG_FILE,
&auditor_url,
&exchange_url))
{
case GNUNET_SYSERR:
GNUNET_break (0);
return 1;
case GNUNET_NO:
return 77;
case GNUNET_OK:
if (GNUNET_OK !=
/* Set up event loop and reschedule context, plus
* start/stop the exchange. It calls TALER_TESTING_setup
* which creates the 'is' object.
*/
TALER_TESTING_setup_with_exchange (&run,
NULL,
CONFIG_FILE))
return 1;
break;
default:
GNUNET_break (0);
return 1;
}
return 0;
}
/* end of test_exchange_api_revocation.c */
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