/*
     This file is part of libmicrohttpd
     (C) 2007, 2008 Christian Grothoff (and other contributing authors)

     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public
     License as published by the Free Software Foundation; either
     version 2.1 of the License, or (at your option) any later version.

     This library 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
     Lesser General Public License for more details.

     You should have received a copy of the GNU Lesser General Public
     License along with this library; if not, write to the Free Software
     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/
/**
 * @file querystring_example.c
 * @brief example for how to get the query string from libmicrohttpd
 *        Call with an URI ending with something like "?q=QUERY"
 * @author Christian Grothoff
 */

#include "platform.h"
#include <microhttpd.h>

#define PAGE "<html><head><title>libmicrohttpd demo</title></head><body>Query string for &quot;%s&quot; was &quot;%s&quot;</body></html>"

static int
ahc_echo (void *cls,
          struct MHD_Connection *connection,
          const char *url,
          const char *method,
          const char *version,
          const char *upload_data, size_t *upload_data_size, void **ptr)
{
  static int aptr;
  const char *fmt = cls;
  const char *val;
  char *me;
  struct MHD_Response *response;
  int ret;

  if (0 != strcmp (method, "GET"))
    return MHD_NO;              /* unexpected method */
  if (&aptr != *ptr)
    {
      /* do never respond on first call */
      *ptr = &aptr;
      return MHD_YES;
    }
  *ptr = NULL;                  /* reset when done */
  val = MHD_lookup_connection_value (connection, MHD_GET_ARGUMENT_KIND, "q");
  me = malloc (snprintf (NULL, 0, fmt, "q", val) + 1);
  if (me == NULL)
    return MHD_NO;
  sprintf (me, fmt, "q", val);
  response = MHD_create_response_from_data (strlen (me), me, MHD_YES, MHD_NO);
  ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
  MHD_destroy_response (response);
  return ret;
}

int
main (int argc, char *const *argv)
{
  struct MHD_Daemon *d;

  if (argc != 3)
    {
      printf ("%s PORT SECONDS-TO-RUN\n", argv[0]);
      return 1;
    }
  d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION | MHD_USE_DEBUG,
                        atoi (argv[1]),
                        NULL, NULL, &ahc_echo, PAGE, MHD_OPTION_END);
  if (d == NULL)
    return 1;
  sleep (atoi (argv[2]));
  MHD_stop_daemon (d);
  return 0;
}
