// ----------------------------------------------------------------------
// File: com_chown.cc
// Author: Andreas-Joachim Peters - CERN
// ----------------------------------------------------------------------

/************************************************************************
 * EOS - the CERN Disk Storage System                                   *
 * Copyright (C) 2011 CERN/Switzerland                                  *
 *                                                                      *
 * This program 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 of the License, or    *
 * (at your option) any later version.                                  *
 *                                                                      *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.*
 ************************************************************************/

/*----------------------------------------------------------------------------*/
#include "common/StringTokenizer.hh"
#include "console/ConsoleMain.hh"
/*----------------------------------------------------------------------------*/

/* Owner Interface */
int
com_chown(char* arg1)
{
  eos::common::StringTokenizer subtokenizer(arg1);
  subtokenizer.GetLine();
  XrdOucString owner;
  XrdOucString option = "";
  XrdOucString in = "mgm.cmd=chown";
  XrdOucString arg = "";
  bool bypasshelp = false;

  while ((owner = subtokenizer.GetToken()).length() && owner.length()) {
    if (owner.beginswith("-")) {
      XrdOucString loption = owner;

      if (loption == "--nodereference") {
        loption = "h";
      }

      loption.erase(0, 1);
      option += loption;
      bypasshelp = true;
    } else {
      break;
    }
  }

  XrdOucString path = subtokenizer.GetToken();

  if (option.length()) {
    in += "&mgm.chown.option=";
    in += option;
  }

  if (!bypasshelp && wants_help(arg1)) {
    goto com_chown_usage;
  }

  if (!path.length() || !owner.length()) {
    goto com_chown_usage;
  }

  path = abspath(path.c_str());
  in += "&mgm.path=";
  in += path;
  in += "&mgm.chown.owner=";
  in += owner;
  global_retc = output_result(client_command(in));
  return (0);
com_chown_usage:
  fprintf(stdout,
          "Usage: chown [-r] [-h --nodereference] <owner>[:<group>] <path>\n");
  fprintf(stdout, "       chown [-r] :<group> <path>\n");
  fprintf(stdout,
          "'[eos] chown ..' provides the change owner interface of EOS.\n");
  fprintf(stdout,
          "<path> is the file/directory to modify, <owner> has to be a user id or user name. <group> is optional and has to be a group id or group name.\n");
  fprintf(stdout, "To modify only the group use :<group> as identifier!\n");
  fprintf(stdout,
          "Remark: if you use the -r -h option and path points to a link the owner of the link parent will also be updated!");
  fprintf(stdout, "Options:\n");
  fprintf(stdout, "                  -r : recursive\n");
  global_retc = EINVAL;
  return (0);
}