icinga2/lib/cli/featureenablecommand.cpp

127 lines
4.7 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2014 Icinga Development Team (http://www.icinga.org) *
* *
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "cli/featureenablecommand.hpp"
#include "base/logger_fwd.hpp"
#include "base/clicommand.hpp"
#include "base/application.hpp"
#include "base/convert.hpp"
#include <boost/foreach.hpp>
#include <boost/algorithm/string/join.hpp>
#include <fstream>
#include <vector>
#include <string>
#include <fstream>
using namespace icinga;
namespace po = boost::program_options;
REGISTER_CLICOMMAND("feature/enable", FeatureEnableCommand);
String FeatureEnableCommand::GetDescription(void) const
{
return "Enables specified Icinga 2 feature.";
}
String FeatureEnableCommand::GetShortDescription(void) const
{
return "enables specified feature";
}
void FeatureEnableCommand::InitParameters(boost::program_options::options_description& visibleDesc,
boost::program_options::options_description& hiddenDesc,
ArgumentCompletionDescription& argCompletionDesc) const
{
/* Command doesn't support any parameters. */
}
/**
* The entry point for the "feature enable" CLI command.
*
* @returns An exit status.
*/
int FeatureEnableCommand::Run(const boost::program_options::variables_map& vm, const std::vector<std::string>& ap) const
{
String features_available_dir = Application::GetSysconfDir() + "/icinga2/features-available";
String features_enabled_dir = Application::GetSysconfDir() + "/icinga2/features-enabled";
if (ap.empty()) {
Log(LogCritical, "cli", "Cannot enable feature(s). Name(s) are missing!");
return 0;
}
if (!Utility::PathExists(features_available_dir) ) {
Log(LogCritical, "cli", "Cannot parse available features. Path '" + features_available_dir + "' does not exist.");
return 0;
}
if (!Utility::PathExists(features_enabled_dir) ) {
Log(LogCritical, "cli", "Cannot enable features. Path '" + features_enabled_dir + "' does not exist.");
return 0;
}
std::vector<std::string> errors;
BOOST_FOREACH(const String& feature, ap) {
String source = features_available_dir + "/" + feature + ".conf";
if (!Utility::PathExists(source) ) {
Log(LogCritical, "cli", "Cannot enable feature '" + feature + "'. Source file '" + source + "' does not exist.");
errors.push_back(feature);
continue;
}
String target = features_enabled_dir + "/" + feature + ".conf";
if (Utility::PathExists(target) ) {
Log(LogWarning, "cli", "Feature '" + feature + "' already enabled.");
continue;
}
Log(LogInformation, "cli", "Enabling feature '" + feature + "' in '" + features_enabled_dir + "'.");
#ifndef _WIN32
if (symlink(source.CStr(), target.CStr()) < 0) {
Log(LogCritical, "cli", "Cannot enable feature '" + feature + "'. Linking source '" + source + "' to target file '" + target +
"' failed with error code " + Convert::ToString(errno) + ", \"" + Utility::FormatErrorNumber(errno) + "\".");
errors.push_back(feature);
continue;
}
#else /* _WIN32 */
std::ofstream fp;
fp.open(target.CStr());
if (!fp) {
Log(LogCritical, "cli", "Cannot enable feature '" + feature + "'. Failed to open file '" + target + "'.");
errors.push_back(feature);
continue;
}
fp << "include \"../features-available/" << feature << ".conf\"" << std::endl;
fp.close();
#endif /* _WIN32 */
}
if (!errors.empty()) {
Log(LogCritical, "cli", "Cannot enable feature(s): " + boost::algorithm::join(errors, " "));
errors.clear();
return 1;
}
return 0;
}