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/*
* bitz-server, An ICAP server implementation in C++
* Copyright (C) 2012 Uditha Atukorala
*
* 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 3 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 "config.h"
#include "logger.h"
#include <iostream>
#include <cstdlib>
namespace bitz {
Config::Config() {
// initialise config_t values
_config.port = 1344;
_config.pid_file = "/dev/null";
_config.log_file = "/dev/null";
_config.log_category = "bitz";
_config.req_handlers_count = 0;
_config.req_handlers = NULL;
_config.max_workers = 0;
_config.max_worker_requests = 0;
_config.comm_timeout = 0;
// defaults
_lconfig = NULL;
}
Config::~Config() {
// cleanup
delete _lconfig;
for (int i = 0; i < _config.req_handlers_count ; i++ ) {
if ( _config.req_handlers[i].modules_count > 0 ) {
delete [] _config.req_handlers[i].modules;
}
}
if ( _config.req_handlers != NULL ) {
delete [] _config.req_handlers;
}
}
const config_t &Config::initialise( const std::string &config_file ) {
libconfig::Config * config;
config = new libconfig::Config;
try {
config->readFile( config_file.c_str() );
} catch ( const libconfig::FileIOException &ex ) {
std::cerr << "[config] failed to read config file: " << config_file
<< ", exception: " << ex.what() << std::endl;
exit( EXIT_FAILURE );
} catch ( const libconfig::ParseException &pex ) {
std::cerr << "[config] parse error at " << pex.getFile()
<< ":" << pex.getLine() << " - " << pex.getError() << std::endl;
exit( EXIT_FAILURE );
}
try {
// read core configs
config->lookupValue( "port", _config.port );
config->lookupValue( "pid_file", _config.pid_file );
config->lookupValue( "log_file", _config.log_file );
config->lookupValue( "log_category", _config.log_category );
config->lookupValue( "max_workers", _config.max_workers );
config->lookupValue( "max_worker_requests", _config.max_worker_requests );
config->lookupValue( "comm_timeout", _config.comm_timeout );
} catch ( const libconfig::SettingNotFoundException &e ) {
std::cerr << "[config] failed to load core configs, "
<< e.getPath() << " : " << e.what() << std::endl;
}
// cache configs
_lconfig = config;
// read other configs
read_req_handler_configs();
return _config;
}
const config_t &Config::configs() {
return _config;
}
const std::string Config::module_config( const std::string &module, const std::string &config ) throw() {
std::string config_value = "";
if ( _lconfig->exists( "modules" ) ) {
try {
libconfig::Setting &setting = _lconfig->lookup( std::string( "modules." ).append( module ) );
setting.lookupValue( config, config_value );
} catch ( const libconfig::SettingNotFoundException &e ) {
// TODO: log errors ??
std::cerr << "[config] " << e.getPath() << " : " << e.what() << std::endl;
}
} else {
std::cout << "[config] 'modules' configs not found" << std::endl;
}
return config_value;
}
void Config::read_req_handler_configs() throw() {
int i, j;
std::string s;
std::cout << "[config] looking for req_handlers... ";
if ( _lconfig->exists( "req_handlers" ) ) {
std::cout << "found ";
libconfig::Setting &req_handlers = _lconfig->lookup( "req_handlers" );
_config.req_handlers_count = req_handlers.getLength();
_config.req_handlers = new req_handlers_config_t[_config.req_handlers_count];
std::cout << "(" << _config.req_handlers_count << ")" << std::endl;
try {
// read request handler configs
for ( i = 0; i < _config.req_handlers_count ; i++ ) {
_config.req_handlers[i].name = (const char *) req_handlers[i]["handler"];
_config.req_handlers[i].class_name = (const char *) req_handlers[i]["class"];
// read request handler modules config
std::cout << "[config] looking for " << _config.req_handlers[i].name << " modules... ";
if ( req_handlers[i].exists( "modules" ) ) {
std::cout << "found ";
_config.req_handlers[i].modules_count = req_handlers[i]["modules"].getLength();
_config.req_handlers[i].modules = new modules_config_t[_config.req_handlers[i].modules_count];
std::cout << "(" << _config.req_handlers[i].modules_count << ")" << std::endl;
for ( j = 0; j < _config.req_handlers[i].modules_count; j++ ) {
_config.req_handlers[i].modules[j].name = (const char *) req_handlers[i]["modules"][j]["name"];
_config.req_handlers[i].modules[j].module = (const char *) req_handlers[i]["modules"][j]["module"];
}
} else {
std::cout << "not found" << std::endl;
}
}
} catch ( const libconfig::SettingNotFoundException &ex ) {
std::cerr << "[config] Error: " << ex.getPath() << ex.what() << std::endl;
}
} else {
std::cout << "not found" << std::endl;
}
}
} /* end of namespace bitz */
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