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path: root/src/exchange-lib/test_exchange_api_new.c
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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/test_exchange_api_new.c
 * @brief testcase to test exchange's HTTP API interface
 * @author Sree Harsha Totakura <sreeharsha@totakura.in>
 * @author Christian Grothoff
 */
#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"


/**
 * Is the configuration file is set to include wire format 'test'?
 */
#define WIRE_TEST 1

/**
 * Is the configuration file is set to include wire format 'sepa'?
 */
#define WIRE_SEPA 1

/**
 * Account number of the exchange at the bank.
 */
#define EXCHANGE_ACCOUNT_NO 2

/**
 * Handle to access the exchange.
 */
// static struct TALER_EXCHANGE_Handle *exchange;


/**
 * Pipe used to communicate child death via signal.
 */
static struct GNUNET_DISK_PipeHandle *sigpipe;

/**
 * Handle to the exchange process.
 */
static struct GNUNET_OS_Process *exchanged;


/**
 * Handle to our fakebank.
 */
static struct TALER_FAKEBANK_Handle *fakebank;




/**
 * Function run when the test terminates (good or bad).
 * Cleans up our state.
 *
 * @param cls NULL
 */
static void
do_shutdown (void *cls)
{
  if (NULL != fakebank)
  {
    TALER_FAKEBANK_stop (fakebank);
    fakebank = NULL;
  }
}


/**
 * Main function that will tell the interpreter what to do.
 *
 * @param cls closure
 */
static void
run (void *cls,
     struct TALER_TESTING_Interpreter *is)
{
  struct TALER_TESTING_Command commands[] = {
    TALER_TESTING_cmd_fakebank_transfer ("create-reserve-1",
                                         "EUR:5.01",
                                         42,
                                         EXCHANGE_ACCOUNT_NO,
                                         "user42",
                                         "pass42"),
    TALER_TESTING_cmd_end ()
  };

  fakebank = TALER_FAKEBANK_start (8082);
  TALER_TESTING_run (is,
                     commands);
  GNUNET_SCHEDULER_add_shutdown (&do_shutdown,
                                 NULL);
}


/**
 * Signal handler called for SIGCHLD.  Triggers the
 * respective handler by writing to the trigger pipe.
 */
static void
sighandler_child_death ()
{
  static char c;
  int old_errno = errno;	/* back-up errno */

  GNUNET_break (1 ==
		GNUNET_DISK_file_write (GNUNET_DISK_pipe_handle
					(sigpipe, GNUNET_DISK_PIPE_END_WRITE),
					&c, sizeof (c)));
  errno = old_errno;		/* restore errno */
}



/**
 * Remove files from previous runs
 */
static void
cleanup_files ()
{
  struct GNUNET_CONFIGURATION_Handle *cfg;
  char *dir;

  cfg = GNUNET_CONFIGURATION_create ();
  if (GNUNET_OK !=
      GNUNET_CONFIGURATION_load (cfg,
                                 "test_exchange_api.conf"))
  {
    GNUNET_break (0);
    GNUNET_CONFIGURATION_destroy (cfg);
    exit (77);
  }
  GNUNET_assert (GNUNET_OK ==
                 GNUNET_CONFIGURATION_get_value_filename (cfg,
                                                          "exchange",
                                                          "keydir",
                                                          &dir));
  if (GNUNET_YES ==
      GNUNET_DISK_directory_test (dir,
                                  GNUNET_NO))
    GNUNET_break (GNUNET_OK ==
                  GNUNET_DISK_directory_remove (dir));
  GNUNET_free (dir);
  GNUNET_CONFIGURATION_destroy (cfg);
}




int
main (int argc,
      char * const *argv)
{
  struct GNUNET_OS_Process *proc;
  struct GNUNET_SIGNAL_Context *shc_chld;
  enum GNUNET_OS_ProcessStatusType type;
  unsigned long code;
  unsigned int iter;
  int result;

  /* These might get in the way... */
  unsetenv ("XDG_DATA_HOME");
  unsetenv ("XDG_CONFIG_HOME");
  GNUNET_log_setup ("test-exchange-api",
                    "INFO",
                    NULL);
  if (GNUNET_OK !=
      GNUNET_NETWORK_test_port_free (IPPROTO_TCP,
				     8081))
  {
    fprintf (stderr,
             "Required port %u not available, skipping.\n",
	     8081);
    return 77;
  }
  if (GNUNET_OK !=
      GNUNET_NETWORK_test_port_free (IPPROTO_TCP,
				     8082))
  {
    fprintf (stderr,
             "Required port %u not available, skipping.\n",
	     8082);
    return 77;
  }
  cleanup_files ();

  proc = GNUNET_OS_start_process (GNUNET_NO,
                                  GNUNET_OS_INHERIT_STD_ALL,
                                  NULL, NULL, NULL,
                                  "taler-exchange-keyup",
                                  "taler-exchange-keyup",
                                  "-c", "test_exchange_api.conf",
                                  "-o", "auditor.in",
                                  NULL);
  if (NULL == proc)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
		"Failed to run `taler-exchange-keyup`, is your PATH correct?\n");
    return 77;
  }
  GNUNET_OS_process_wait (proc);
  GNUNET_OS_process_destroy (proc);

  proc = GNUNET_OS_start_process (GNUNET_NO,
                                  GNUNET_OS_INHERIT_STD_ALL,
                                  NULL, NULL, NULL,
                                  "taler-auditor-sign",
                                  "taler-auditor-sign",
                                  "-c", "test_exchange_api.conf",
                                  "-u", "http://auditor/",
                                  "-m", "98NJW3CQHZQGQXTY3K85K531XKPAPAVV4Q5V8PYYRR00NJGZWNVG",
                                  "-r", "auditor.in",
                                  "-o", "test_exchange_api_home/.local/share/taler/auditors/auditor.out",
                                  NULL);
  if (NULL == proc)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
		"Failed to run `taler-exchange-keyup`, is your PATH correct?\n");
    return 77;
  }
  GNUNET_OS_process_wait (proc);
  GNUNET_OS_process_destroy (proc);

  proc = GNUNET_OS_start_process (GNUNET_NO,
                                  GNUNET_OS_INHERIT_STD_ALL,
                                  NULL, NULL, NULL,
                                  "taler-exchange-dbinit",
                                  "taler-exchange-dbinit",
                                  "-c", "test_exchange_api.conf",
                                  "-r",
                                  NULL);
  if (NULL == proc)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
		"Failed to run `taler-exchange-dbinit`, is your PATH correct?\n");
    return 77;
  }
  if (GNUNET_SYSERR ==
      GNUNET_OS_process_wait_status (proc,
                                     &type,
                                     &code))
  {
    GNUNET_break (0);
    GNUNET_OS_process_destroy (proc);
    return 1;
  }
  GNUNET_OS_process_destroy (proc);
  if ( (type == GNUNET_OS_PROCESS_EXITED) &&
       (0 != code) )
  {
    fprintf (stderr,
             "Failed to setup database\n");
    return 77;
  }
  if ( (type != GNUNET_OS_PROCESS_EXITED) ||
       (0 != code) )
  {
    fprintf (stderr,
             "Unexpected error running `taler-exchange-dbinit'!\n");
    return 1;
  }
  exchanged = GNUNET_OS_start_process (GNUNET_NO,
                                       GNUNET_OS_INHERIT_STD_ALL,
                                       NULL, NULL, NULL,
                                       "taler-exchange-httpd",
                                       "taler-exchange-httpd",
                                       "-c", "test_exchange_api.conf",
                                       "-i",
                                       NULL);
  /* give child time to start and bind against the socket */
  fprintf (stderr,
           "Waiting for `taler-exchange-httpd' to be ready");
  iter = 0;
  do
    {
      if (10 == iter)
      {
	fprintf (stderr,
		 "Failed to launch `taler-exchange-httpd' (or `wget')\n");
	GNUNET_OS_process_kill (exchanged,
				SIGTERM);
	GNUNET_OS_process_wait (exchanged);
	GNUNET_OS_process_destroy (exchanged);
	return 77;
      }
      fprintf (stderr, ".");
      sleep (1);
      iter++;
    }
  while (0 != system ("wget -q -t 1 -T 1 http://127.0.0.1:8081/keys -o /dev/null -O /dev/null"));
  fprintf (stderr, "\n");
  sigpipe = GNUNET_DISK_pipe (GNUNET_NO, GNUNET_NO,
                              GNUNET_NO, GNUNET_NO);
  GNUNET_assert (NULL != sigpipe);
  shc_chld = GNUNET_SIGNAL_handler_install (GNUNET_SIGCHLD,
                                            &sighandler_child_death);

  result = TALER_TESTING_setup (&run, NULL);

  GNUNET_SIGNAL_handler_uninstall (shc_chld);
  shc_chld = NULL;
  GNUNET_DISK_pipe_close (sigpipe);
  GNUNET_break (0 ==
                GNUNET_OS_process_kill (exchanged,
                                        SIGTERM));
  GNUNET_break (GNUNET_OK ==
                GNUNET_OS_process_wait (exchanged));
  GNUNET_OS_process_destroy (exchanged);
  return (GNUNET_OK == result) ? 0 : 1;
}