root/nntp/mode.cc

/*  This file is part of Alue, the multiprotocol Internet discussion daemon

    Copyright © 2009 Antti-Juhani Kaijanaho

    Alue 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.

    Alue 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 Alue.  If not, see <http://www.gnu.org/licenses/>.

 */

#include "connection.hh"
#include "lexutils.hh"

namespace nntp
{
        class mode : public connection::command
        {
        public:
                mode(const char *s) {
                        connection::register_command(s, this);
                }

                connection::continuation::ptr
                perform(connection::cb, const std::string [],  size_t) const;
        };

        connection::continuation::ptr
        mode::perform(connection::cb c, const std::string args[], size_t nargs)
                const
        {
                switch (nargs) {
                case 0:
                        c.send_line("501 subcommand missing");
                        return c.dispatch();
                case 1:
                        if (!is_keyword(args[0])) {
                                c.send_line("501 subcommand invalid");
                                return c.dispatch();
                        } else {
                                std::string kw = args[0];
                                boost::to_upper(kw);
                                if (args[0] != "READER") {
                                        c.send_line
                                                ("501 unrecognized subcommand");
                                        return c.dispatch();
                                }
                        }
                        break;
                default:
                        c.send_line("501 too many parameters");
                        return c.dispatch();
                }

                if (c.authenticated())
                        c.send_line("200 posting allowed");
                else
                        c.send_line("200 posting requires authentication");
                return c.dispatch();
        }
};
namespace {
        nntp::mode mode("mode");
}