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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 auditor-lib/test_auditor_api.c
 * @brief testcase to test auditor's HTTP API interface
 * @author Christian Grothoff
 * @author Marcello Stanisci
 */
#include "platform.h"
#include "taler_util.h"
#include "taler_signatures.h"
#include "taler_exchange_service.h"
#include "taler_auditor_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"
#include "taler_testing_auditor_lib.h"

/**
 * Configuration file we use.  One (big) configuration is used
 * for the various components for this test.
 */
#define CONFIG_FILE "test_auditor_api.conf"

/**
 * URL of the fakebank.  Obtained from CONFIG_FILE's
 * "exchange-wire-test:BANK_URI" option.
 */
static char *fakebank_url;

/**
 * Auditor base URL as it appears in the configuration.  Note
 * that it might differ from the one where the exchange actually
 * listens from.
 */
static char *auditor_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;

/**
 * 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)

/**
 * Execute the taler-exchange-aggregator command with
 * our configuration file.
 *
 * @param label label to use for the command.
 */
#define CMD_EXEC_AGGREGATOR(label) \
   TALER_TESTING_cmd_exec_aggregator (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)

/**
 * 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_SUBJECT(label,amount,subject) \
   TALER_TESTING_cmd_fakebank_transfer_with_subject \
     (label, amount, fakebank_url, USER_ACCOUNT_NO, \
      EXCHANGE_ACCOUNT_NO, USER_LOGIN_NAME, USER_LOGIN_PASS, \
      subject, exchange_url)

#define CMD_RUN_AUDITOR(label) \
  TALER_TESTING_cmd_exec_auditor (label, CONFIG_FILE)


/**
 * 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[] = {
    CMD_RUN_AUDITOR_DBINIT("virgin-auditor"),
    CMD_RUN_AUDITOR("virgin-auditor"),

    /**
     * End the suite.  Fixme: better to have a label for this
     * too, as it shows a "(null)" token on logs.
     */
    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-auditor-api",
                    "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_AUDITOR_setup (&run,
                                     NULL,
                                     CONFIG_FILE))
      return 1;
    break;
  default:
    GNUNET_break (0);
    return 1;
  }
  return 0;
}

/* end of test_auditor_api.c */