icinga2/lib/icinga/pluginchecktask.cpp

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/******************************************************************************
* Icinga 2 *
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* Copyright (C) 2012-2013 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. *
******************************************************************************/
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#include "icinga/pluginchecktask.h"
#include "icinga/checkcommand.h"
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#include "icinga/macroprocessor.h"
#include "icinga/icingaapplication.h"
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#include "base/dynamictype.h"
#include "base/logger_fwd.h"
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#include "base/scriptfunction.h"
#include "base/utility.h"
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#include "base/process.h"
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#include <boost/algorithm/string/classification.hpp>
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#include <boost/algorithm/string/split.hpp>
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#include <boost/smart_ptr/make_shared.hpp>
#include <boost/foreach.hpp>
using namespace icinga;
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REGISTER_SCRIPTFUNCTION(PluginCheck, &PluginCheckTask::ScriptFunc);
Dictionary::Ptr PluginCheckTask::ScriptFunc(const Service::Ptr& service)
{
CheckCommand::Ptr commandObj = service->GetCheckCommand();
Value raw_command = commandObj->GetCommandLine();
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std::vector<MacroResolver::Ptr> resolvers;
resolvers.push_back(service);
resolvers.push_back(service->GetHost());
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resolvers.push_back(commandObj);
resolvers.push_back(IcingaApplication::GetInstance());
Value command = MacroProcessor::ResolveMacros(raw_command, resolvers, Dictionary::Ptr(), Utility::EscapeShellCmd, commandObj->GetEscapeMacros());
Dictionary::Ptr envMacros = boost::make_shared<Dictionary>();
Array::Ptr export_macros = commandObj->GetExportMacros();
if (export_macros) {
BOOST_FOREACH(const String& macro, export_macros) {
String value;
if (!MacroProcessor::ResolveMacro(macro, resolvers, Dictionary::Ptr(), &value)) {
Log(LogWarning, "icinga", "export_macros for service '" + service->GetName() + "' refers to unknown macro '" + macro + "'");
continue;
}
envMacros->Set(macro, value);
}
}
Process::Ptr process = boost::make_shared<Process>(Process::SplitCommand(command), envMacros);
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process->SetTimeout(commandObj->GetTimeout());
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ProcessResult pr = process->Run();
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String output = pr.Output;
output.Trim();
Dictionary::Ptr result = ParseCheckOutput(output);
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result->Set("command", command);
result->Set("state", ExitStatusToState(pr.ExitStatus));
result->Set("exit_state", pr.ExitStatus);
result->Set("execution_start", pr.ExecutionStart);
result->Set("execution_end", pr.ExecutionEnd);
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return result;
}
ServiceState PluginCheckTask::ExitStatusToState(int exitStatus)
{
switch (exitStatus) {
case 0:
return StateOK;
case 1:
return StateWarning;
case 2:
return StateCritical;
default:
return StateUnknown;
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}
}
Dictionary::Ptr PluginCheckTask::ParseCheckOutput(const String& output)
{
Dictionary::Ptr result = boost::make_shared<Dictionary>();
String text;
String perfdata;
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std::vector<String> lines;
boost::algorithm::split(lines, output, boost::is_any_of("\r\n"));
BOOST_FOREACH (const String& line, lines) {
size_t delim = line.FindFirstOf("|");
if (!text.IsEmpty())
text += "\n";
if (delim != String::NPos) {
text += line.SubStr(0, delim);
if (!perfdata.IsEmpty())
perfdata += " ";
perfdata += line.SubStr(delim + 1, line.GetLength());
} else {
text += line;
}
}
result->Set("output", text);
result->Set("performance_data_raw", perfdata);
return result;
}