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// Copyright © 2013 sss
//
// 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 2
// 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, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include <string>
#include <list>
#include <vector>
#include <algorithm>
#include "api_protocol.h"
#include "packet.h"
packet::packet()
{
}
packet::packet(std::vector<unsigned char>& new_data)
{
data = new_data;
}
bool packet::assign(packet& p)
{
data = p.data;
return is_good();
}
bool packet::assign(std::vector<unsigned char>& v)
{
data = v;
return is_good();
}
bool packet::is_good()
{
if(data.empty())
return false;
if(std::search(data.begin(), data.end(), proto_header, proto_header + sizeof(proto_header)) == data.end())
return false;
if(std::search(data.begin(), data.end(), proto_footer, proto_footer + sizeof(proto_footer)) == data.end())
return false;
return true;
}
bool packet::is_client_packet()
{
std::vector<unsigned char>::iterator i = data.begin();
i+= sizeof(proto_header);
std::vector<unsigned char> cli;
cli.push_back(*i);
i++;
cli.push_back(*i);
if(std::search(cli.begin(), cli.end(), cli_packet, cli_packet + sizeof(cli_packet)) != cli.end())
return true;
return false;
}
bool packet::is_server_packet()
{
std::vector<unsigned char>::iterator i = data.begin();
i+= sizeof(proto_header);
std::vector<unsigned char> srv;
srv.push_back(*i);
i++;
srv.push_back(*i);
if(std::search(srv.begin(), srv.end(), serv_packet, serv_packet + sizeof(serv_packet)) != srv.end())
return true;
return false;
}
packet_type packet::get_type()
{
std::vector<unsigned char>::iterator i = data.begin();
i+= (sizeof(proto_header) + 2);
std::vector<unsigned char> type;
type.push_back(*i);
i++;
type.push_back(*i);
bool cli = is_client_packet();
if(std::search(type.begin(), type.end(), type_auth, type_auth + sizeof(type_auth)) != type.end())
return cli?AUTH_REQUEST:AUTH_REPLY;
if(std::search(type.begin(), type.end(), type_services, type_services + sizeof(type_services)) != type.end())
return cli?SERVICES_REQUEST:SERVICES_REPLY;
if(std::search(type.begin(), type.end(), type_command, type_command + sizeof(type_command)) != type.end())
return cli?COMMAND_REQUEST:COMMAND_REPLY;
return UNKNOWN;
}
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