/*
  Copyright 2008 Nathan Phillip Brink, Ethan Zonca, Matt Orlando

  This file is a part of DistRen.

  DistRen is free software: you can redistribute it and/or modify
  it under the terms of the GNU Affero General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  DistRen 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 Affero General Public License for more details.

  You should have received a copy of the GNU Affero General Public License
  along with DistRen.  If not, see <http://www.gnu.org/licenses/>.
*/


/* Ideas for php-side stuff:
 *
 * PHP adds the users... has captcha and email confirmation wth a pseudo-random number that
 * the user must enter on the site. Apache should be running mod_peruser for safety, and I'm
 * thinking zserver2 for web serving for convenience...
 */


#include "options.h"
#include "execio.h"

#include <stdio.h> /* sprintf, printf */
#include <stdlib.h> /* malloc, free */
#include <libxml/tree.h> /* Happy fun XML time */
#include <libxml/xmlwriter.h>
#include <confuse.h>
#include<string.h> // for strcat


int main(int argc, char *argv[])
{
  struct options_common *options;

  cfg_t *cfg;

  cfg_opt_t cfg_opts[] =
    {
      CFG_STR_LIST("render_types", NULL, 0),
      CFG_STR("username", NULL, 0),
      CFG_STR("name", NULL, 0),
      CFG_STR("email", NULL, 0),
      CFG_END()
    };

  int i;

  i = 1;

  if(options_init(argc, argv, &cfg, cfg_opts, "client", &options))
    {
      fprintf(stderr, "error getting configuration\n");
      return 1;
    }


  // Please find a better way of doing this :( you can't strcat multiple strings.. meh
  // use something like sprintf
  //char *username = cfg_getstr(cfg, "username");
  //char *hostname = cfg_getstr(cfg, "hostname");
  //strcat(username, "@");
  //strcat(username, hostname);


  // SSH's to client machine with the username speficied.
    char buf[10];
    struct execio *testrem;
    char *execargv[] =
      {
	"ssh",
	"username", //cfg_getstr(cfg, "username") . "@" . cfg_getstr(cfg, "hostname"),
	"-i guest.rsa", //yeaaaah any better ideas?
	"sh",
	"-c",
	"\"echo hello from ${HOSTNAME}\"", // "\"useradd -M -c" strcat( cfg_getstr(cfg, "name") cfg_getstr(cfg, "email")) "-d /home/distren --gid 537" cfg_getstr(cfg, "username") "\"",
	(char *)NULL
      };

    size_t readlen;
    fprintf(stderr, "execio madness is occuring!");
    fprintf(stderr, "execio_open returns %d\n", execio_open(&testrem, "ssh", execargv));
    buf[9] = '\0';
    while(!execio_read(testrem, buf, 9, &readlen))
      {
	if(readlen > 9)
	  {
	    fprintf(stderr, "execio_read doesn't set readlen correctly or read() is messed up\n");
	    return 1;
	  }
	buf[readlen] = '\0';
	fprintf(stderr, "read \"%s\"\n", buf);
      }
    execio_close(testrem);
  }
  // Can we prune off some of this code up here^? I'm not exactly sure how execio returns output, but it seems like more could be happening in execio itself, and less happening where it is actually called.
  // We need some code to ssh, and if the SSH fails, tell the user to register.
  // Killed the user reg code, as the php interface will take care of this. Although it should check for users...

  options_free(options);
  return 0;
};