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/*
Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file
This file is part of 0MQ.
0MQ 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 3 of the License, or
(at your option) any later version.
0MQ 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 program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ZMQ_PLAIN_MECHANISM_HPP_INCLUDED__
#define __ZMQ_PLAIN_MECHANISM_HPP_INCLUDED__
#include "mechanism.hpp"
#include "options.hpp"
namespace zmq
{
class msg_t;
class session_base_t;
class plain_mechanism_t : public mechanism_t
{
public:
plain_mechanism_t (session_base_t *session_,
const std::string &peer_address_,
const options_t &options_);
virtual ~plain_mechanism_t ();
// mechanism implementation
virtual int next_handshake_command (msg_t *msg_);
virtual int process_handshake_command (msg_t *msg_);
virtual int zap_msg_available ();
virtual bool is_handshake_complete () const;
private:
enum state_t {
sending_hello,
waiting_for_hello,
sending_welcome,
waiting_for_welcome,
sending_initiate,
waiting_for_initiate,
sending_ready,
waiting_for_ready,
waiting_for_zap_reply,
ready
};
session_base_t * const session;
const std::string peer_address;
// True iff we are awaiting reply from ZAP reply.
bool expecting_zap_reply;
state_t state;
int produce_hello (msg_t *msg_) const;
int produce_welcome (msg_t *msg_) const;
int produce_initiate (msg_t *msg_) const;
int produce_ready (msg_t *msg_) const;
int process_hello (msg_t *msg_);
int process_welcome (msg_t *msg);
int process_ready (msg_t *msg_);
int process_initiate (msg_t *msg_);
void send_zap_request (const std::string &username,
const std::string &password);
int receive_and_process_zap_reply ();
};
}
#endif
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