source: nscp/modules/NRPEClient/NRPEClient.h @ a44cb15

/**************************************************************************
*   Copyright (C) 2004-2007 by Michael Medin <michael@medin.name>         *
*                                                                         *
*   This code is part of NSClient++ - http://trac.nakednuns.org/nscp      *
*                                                                         *
*   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.             *
***************************************************************************/

NSC_WRAPPERS_MAIN();
NSC_WRAPPERS_CLI();


#include <map>
#include <nrpe/packet.hpp>


class NRPEClient : public nscapi::impl::simple_command, public nscapi::impl::simple_plugin, public nscapi::impl::simple_command_line_exec {
private:
        typedef enum {
                inject, script, script_dir,
        } command_type;
        struct nrpe_connection_data {
                std::wstring host;
                std::wstring command;
                std::wstring arguments;
                std::wstring command_line;
                std::vector<std::wstring> argument_vector;
                int port;
                int timeout;
                unsigned int buffer_length;
                bool no_ssl;
                nrpe_connection_data(unsigned int buffer_length_ = 1024) 
                        : host(_T("127.0.0.1")), 
                        port(5666), 
                        timeout(10), 
                        no_ssl(false), 
                        buffer_length(buffer_length_) 
                {}
                void parse_arguments() {
                        for (std::vector<std::wstring>::const_iterator cit = argument_vector.begin(); cit != argument_vector.end(); ++cit) {
                                if (!arguments.empty())
                                        arguments += _T("!");
                                arguments += *cit;
                        }
                }
                std::wstring get_cli(std::wstring arguments_) {
                        if (command_line.empty()) {
                                command_line = command;
                                if (command_line.empty())
                                        command_line = _T("_NRPE_CHECK");
                                if (!arguments_.empty())
                                        command_line += _T("!") + arguments_;
                                else if (!arguments.empty())
                                        command_line += _T("!") + arguments;
                        }
                        return command_line;
                }
                std::wstring toString() {
                        std::wstringstream ss;
                        ss << _T("host: ") << host;
                        ss << _T(", port: ") << port;
                        ss << _T(", timeout: ") << timeout;
                        ss << _T(", no_ssl: ") << no_ssl;
                        ss << _T(", buffer_length: ") << buffer_length;
                        ss << _T(", command: ") << command;
                        ss << _T(", argument: ") << arguments;
                        return ss.str();
                }
        };
        struct nrpe_result_data {
                nrpe_result_data() {}
                nrpe_result_data(int result_, std::wstring text_) : result(result_), text(text_) {}
                std::wstring text;
                int result;
        };
        typedef std::map<strEx::blindstr, nrpe_connection_data> command_list;
        command_list commands;
        unsigned int buffer_length_;
        std::wstring cert_;

public:
        NRPEClient();
        virtual ~NRPEClient();
        // Module calls
        bool loadModule();
        bool loadModuleEx(std::wstring alias, NSCAPI::moduleLoadMode mode);
        bool unloadModule();


        static std::wstring getModuleName() {
#ifdef USE_SSL
                return _T("NRPE client (w/ SSL)");
#else
                return _T("NRPE client");
#endif
        }
        static nscapi::plugin_wrapper::module_version getModuleVersion() {
                nscapi::plugin_wrapper::module_version version = {0, 0, 1 };
                return version;
        }
        static std::wstring getModuleDescription() {
                return _T("A simple client for checking remote NRPE servers (think proxy).\n")
#ifndef USE_BOOST
                _T("BOOST support is missing (this is probably very bad)!\n")
#endif
#ifndef USE_SSL
                _T("SSL support is missing (so you cant use encryption)!")
#endif
        ;
        }

        bool hasCommandHandler();
        bool hasMessageHandler();
        NSCAPI::nagiosReturn handleCommand(const std::wstring &target, const std::wstring &command, std::list<std::wstring> &arguments, std::wstring &message, std::wstring &perf);
        int commandLineExec(const std::wstring &command, std::list<std::wstring> &arguments, std::wstring &result);
        std::wstring getConfigurationMeta();

private:
        nrpe_result_data  execute_nrpe_command(nrpe_connection_data con, std::wstring arguments);
        nrpe::packet send_nossl(std::wstring host, int port, int timeout, nrpe::packet packet);
        nrpe::packet send_ssl(std::wstring host, int port, int timeout, nrpe::packet packet);
        void add_options(po::options_description &desc, nrpe_connection_data &command_data);

private:
        void add_command(std::wstring key, std::wstring args);
        void add_server(std::wstring key, std::wstring args);

};