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authorAntonio Juarez <antonio.maria.juarez@live.com>2014-03-03 22:07:58 +0000
committerAntonio Juarez <antonio.maria.juarez@live.com>2014-03-03 22:07:58 +0000
commit296ae46ed8f8f6e5f986f978febad302e3df231a (patch)
tree1629164454a239308f33c9e12afb22e7f3cd8eeb /contrib/epee/include/net/munin_connection_handler.h
parentchanged name (diff)
downloadmonero-296ae46ed8f8f6e5f986f978febad302e3df231a.tar.xz
moved all stuff to github
Diffstat (limited to 'contrib/epee/include/net/munin_connection_handler.h')
-rw-r--r--contrib/epee/include/net/munin_connection_handler.h376
1 files changed, 376 insertions, 0 deletions
diff --git a/contrib/epee/include/net/munin_connection_handler.h b/contrib/epee/include/net/munin_connection_handler.h
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+++ b/contrib/epee/include/net/munin_connection_handler.h
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+// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+// * Neither the name of the Andrey N. Sabelnikov nor the
+// names of its contributors may be used to endorse or promote products
+// derived from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER BE LIABLE FOR ANY
+// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+
+
+#ifndef _MUNIN_CONNECTION_HANDLER_H_
+#define _MUNIN_CONNECTION_HANDLER_H_
+
+#include <string>
+#include "net_utils_base.h"
+#include "to_nonconst_iterator.h"
+#include "http_base.h"
+#include "reg_exp_definer.h"
+
+#define MUNIN_ARGS_DEFAULT(vertial_lable_str) "graph_args --base 1000 -l 0 --vertical-label " vertial_lable_str " \n"
+#define MUNIN_ARGS_FORCE_AUPPER_LIMIT(vertial_lable_str, limit) "graph_args --base 1000 -l 0 --vertical-label " vertial_lable_str " --rigid --upper-limit " limit " \n"
+#define MUNIN_TITLE(title_str) "graph_title " title_str "\n"
+#define MUNIN_CATEGORY(category_str) "graph_category " category_str "\n"
+#define MUNIN_INFO(info_str) "graph_info " info_str "\n"
+#define MUNIN_ENTRY(var_name) #var_name".label " #var_name "\n" #var_name".info "#var_name".\n"
+#define MUNIN_ENTRY_AREA(var_name) #var_name".label " #var_name "\n" #var_name".info "#var_name".\n" #var_name".draw AREASTACK\n"
+#define MUNIN_ENTRY_ALIAS(var_name, alias) #var_name".label " #alias"\n" #var_name".info "#alias".\n"
+#define BEGIN_MUNIN_SERVICE(servivece_name_str) if(servivece_name_str == pservice->m_service_name) {
+#define END_MUNIN_SERVICE() }
+#define MUNIN_SERVICE_PARAM(munin_var_name_str, variable) paramters_text += std::string() + munin_var_name_str ".value " + boost::lexical_cast<std::string>(variable) + "\n"
+
+
+
+
+namespace epee
+{
+namespace net_utils
+{
+ namespace munin
+ {
+
+
+ /************************************************************************/
+ /* */
+ /************************************************************************/
+ struct munin_service;
+
+ struct munin_service_data_provider
+ {
+ virtual bool update_service_data(munin_service* pservice, std::string& paramters_text)=0;
+ };
+
+ struct munin_service
+ {
+ std::string m_service_name;
+ std::string m_service_config_string;
+ munin_service_data_provider* m_pdata_provider;
+ };
+
+ struct node_server_config
+ {
+ std::list<munin_service> m_services;
+ //TODO:
+ };
+
+ struct fake_send_handler: public i_service_endpoint
+ {
+ virtual bool do_send(const void* ptr, size_t cb)
+ {
+ m_cache += std::string((const char*)ptr, cb);
+ return true;
+ }
+ public:
+
+ std::string m_cache;
+ };
+
+ /************************************************************************/
+ /* */
+ /************************************************************************/
+ class munin_node_server_connection_handler
+ {
+ public:
+ typedef node_server_config config_type;
+ typedef connection_context_base connection_context;
+
+ munin_node_server_connection_handler(i_service_endpoint* psnd_hndlr, config_type& config, const connection_context_base& context):m_psnd_hndlr(psnd_hndlr),
+ m_machine_state(http_state_retriving_comand_line),
+ m_config(config)
+ {
+ init();
+ }
+ virtual ~munin_node_server_connection_handler()
+ {
+
+ }
+
+ bool release_protocol()
+ {
+ return true;
+ }
+ bool after_init_connection()
+ {
+ std::string hello_str = "# munin node at ";
+ hello_str += m_host_name + "\n";
+ send_hook(hello_str);
+ return true;
+ }
+
+ virtual bool thread_init()
+ {
+ return true;
+ }
+
+ virtual bool thread_deinit()
+ {
+ return true;
+ }
+
+ void handle_qued_callback()
+ {
+
+ }
+
+ virtual bool handle_recv(const void* ptr, size_t cb)
+ {
+
+ const char* pbuff = (const char*)ptr;
+ std::string recvd_buff(pbuff, cb);
+ LOG_PRINT("munin_recv: \n" << recvd_buff, LOG_LEVEL_3);
+
+ m_cache += recvd_buff;
+
+ bool stop_handling = false;
+ while(!stop_handling)
+ {
+ switch(m_machine_state)
+ {
+ case http_state_retriving_comand_line:
+ {
+
+ std::string::size_type fpos = m_cache.find('\n');
+ if(std::string::npos != fpos )
+ {
+ bool res = handle_command(m_cache);
+ if(!res)
+ return false;
+ m_cache.erase(0, fpos+1);
+ continue;
+ }
+ stop_handling = true;
+ }
+ break;
+ case http_state_error:
+ stop_handling = true;
+ return false;
+ default:
+ LOG_ERROR("Error in munin state machine! Unkonwon state=" << m_machine_state);
+ stop_handling = true;
+ m_machine_state = http_state_error;
+ return false;
+ }
+
+ }
+
+ return true;
+ }
+
+ private:
+
+
+ bool init()
+ {
+ char hostname[64] = {0};
+ int res = gethostname(hostname, 64);
+ hostname[63] = 0;//be happy
+ m_host_name = hostname;
+ return true;
+ }
+ bool handle_command(const std::string& command)
+ {
+ // list, nodes, config, fetch, version or quit
+ STATIC_REGEXP_EXPR_1(rexp_match_command_line, "^((list)|(nodes)|(config)|(fetch)|(version)|(quit))(\\s+(\\S+))?", boost::regex::icase | boost::regex::normal);
+ // 12 3 4 5 6 7 8 9
+ size_t match_len = 0;
+ boost::smatch result;
+ if(boost::regex_search(command, result, rexp_match_command_line, boost::match_default) && result[0].matched)
+ {
+ if(result[2].matched)
+ {//list command
+ return handle_list_command();
+ }else if(result[3].matched)
+ {//nodes command
+ return handle_nodes_command();
+ }else if(result[4].matched)
+ {//config command
+ if(result[9].matched)
+ return handle_config_command(result[9]);
+ else
+ {
+ send_hook("Unknown service\n");
+ }
+ }else if(result[5].matched)
+ {//fetch command
+ if(result[9].matched)
+ return handle_fetch_command(result[9]);
+ else
+ {
+ send_hook("Unknown service\n");
+ }
+ }else if(result[6].matched)
+ {//version command
+ return handle_version_command();
+ }else if(result[7].matched)
+ {//quit command
+ return handle_quit_command();
+ }
+ else
+ return send_hook("Unknown command. Try list, nodes, config, fetch, version or quit\n");
+ }
+
+ return send_hook("Unknown command. Try list, nodes, config, fetch, version or quit\n");;
+ }
+
+ bool handle_list_command()
+ {
+ std::string buff_to_send;
+ for(std::list<munin_service>::const_iterator it = m_config.m_services.begin(); it!=m_config.m_services.end();it++)
+ {
+ buff_to_send += it->m_service_name + " ";
+ }
+ buff_to_send+='\n';
+ return send_hook(buff_to_send);
+ }
+ bool handle_nodes_command()
+ {
+ //supports only one node - host name
+ send_hook(m_host_name + "\n.\n");
+ return true;
+ }
+ bool handle_config_command(const std::string& service_name)
+ {
+ munin_service* psrv = get_service_by_name(service_name);
+ if(!psrv)
+ return send_hook(std::string() + "Unknown service\n");
+
+
+ return send_hook(psrv->m_service_config_string + ".\n");
+ }
+
+ bool handle_fetch_command(const std::string& service_name)
+ {
+ munin_service* psrv = get_service_by_name(service_name);
+ if(!psrv)
+ return send_hook(std::string() + "Unknown service\n");
+
+ std::string buff;
+ psrv->m_pdata_provider->update_service_data(psrv, buff);
+
+ buff += ".\n";
+ return send_hook(buff);
+ }
+ bool handle_version_command()
+ {
+ return send_hook("Munin node component by Andrey Sabelnikov\n");
+ }
+ bool handle_quit_command()
+ {
+ return false;
+ }
+
+ bool send_hook(const std::string& buff)
+ {
+ LOG_PRINT("munin_send: \n" << buff, LOG_LEVEL_3);
+
+ if(m_psnd_hndlr)
+ return m_psnd_hndlr->do_send(buff.data(), buff.size());
+ else
+ return false;
+ }
+
+
+ munin_service* get_service_by_name(const std::string& srv_name)
+ {
+ std::list<munin_service>::iterator it = m_config.m_services.begin();
+ for(; it!=m_config.m_services.end(); it++)
+ if(it->m_service_name == srv_name)
+ break;
+
+ if(it==m_config.m_services.end())
+ return NULL;
+
+ return &(*it);
+ }
+
+ enum machine_state{
+ http_state_retriving_comand_line,
+ http_state_error
+ };
+
+
+ config_type& m_config;
+ machine_state m_machine_state;
+ std::string m_cache;
+ std::string m_host_name;
+ protected:
+ i_service_endpoint* m_psnd_hndlr;
+ };
+
+
+ inline bool test_self()
+ {
+ /*WSADATA w;
+ ::WSAStartup(MAKEWORD(1, 1), &w);
+ node_server_config sc;
+ sc.m_services.push_back(munin_service());
+ sc.m_services.back().m_service_name = "test_service";
+
+ sc.m_services.back().m_service_config_string =
+ "graph_args --base 1000 -l 0 --vertical-label N --upper-limit 329342976\n"
+ "graph_title REPORTS STATICTICS\n"
+ "graph_category bind\n"
+ "graph_info This graph shows how many reports came in fixed time period.\n"
+ "graph_order apps free swap\n"
+ "apps.label apps\n"
+ "apps.draw AREA\n"
+ "apps.info Memory used by user-space applications.\n"
+ "swap.label swap\n"
+ "swap.draw STACK\n"
+ "swap.info Swap space used.\n"
+ "free.label unused\n"
+ "free.draw STACK\n"
+ "free.info Wasted memory. Memory that is not used for anything at all.\n"
+ "committed.label committed\n"
+ "committed.draw LINE2\n"
+ "committed.warn 625410048\n"
+ "committed.info The amount of memory that would be used if all the memory that's been allocated were to be used.\n";
+
+
+ sc.m_services.push_back(munin_service());
+ sc.m_services.back().m_service_name = "test_service1";
+ fake_send_handler fh;
+ munin_node_server_connection_handler mh(&fh, sc);
+
+ std::string buff = "list\n";
+ mh.handle_recv(buff.data(), buff.size());
+
+
+ buff = "nodes\n";
+ mh.handle_recv(buff.data(), buff.size());
+*/
+ return true;
+ }
+
+ }
+}
+}
+#endif//!_MUNIN_CONNECTION_HANDLER_H_ \ No newline at end of file