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/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#include "icinga/pluginutility.hpp"
#include "icinga/macroprocessor.hpp"
#include "base/logger.hpp"
#include "base/utility.hpp"
#include "base/perfdatavalue.hpp"
#include "base/convert.hpp"
#include "base/process.hpp"
#include "base/objectlock.hpp"
#include "base/exception.hpp"
#include <boost/algorithm/string/trim.hpp>
using namespace icinga;
void PluginUtility::ExecuteCommand(const Command::Ptr& commandObj, const Checkable::Ptr& checkable,
const CheckResult::Ptr& cr, const MacroProcessor::ResolverList& macroResolvers,
const Dictionary::Ptr& resolvedMacros, bool useResolvedMacros, int timeout,
const std::function<void(const Value& commandLine, const ProcessResult&)>& callback)
{
Value raw_command = commandObj->GetCommandLine();
Dictionary::Ptr raw_arguments = commandObj->GetArguments();
Value command;
try {
command = MacroProcessor::ResolveArguments(raw_command, raw_arguments,
macroResolvers, cr, resolvedMacros, useResolvedMacros);
} catch (const std::exception& ex) {
String message = DiagnosticInformation(ex);
Log(LogWarning, "PluginUtility", message);
if (callback) {
ProcessResult pr;
pr.PID = -1;
pr.ExecutionStart = Utility::GetTime();
pr.ExecutionEnd = pr.ExecutionStart;
pr.ExitStatus = 3; /* Unknown */
pr.Output = message;
callback(Empty, pr);
}
return;
}
Dictionary::Ptr envMacros = new Dictionary();
Dictionary::Ptr env = commandObj->GetEnv();
if (env) {
ObjectLock olock(env);
for (const Dictionary::Pair& kv : env) {
String name = kv.second;
String missingMacro;
Value value = MacroProcessor::ResolveMacros(name, macroResolvers, cr,
&missingMacro, MacroProcessor::EscapeCallback(), resolvedMacros,
useResolvedMacros);
#ifdef I2_DEBUG
if (!missingMacro.IsEmpty())
Log(LogDebug, "PluginUtility")
<< "Macro '" << name << "' is not defined.";
#endif /* I2_DEBUG */
if (value.IsObjectType<Array>())
value = Utility::Join(value, ';');
envMacros->Set(kv.first, value);
}
}
if (resolvedMacros && !useResolvedMacros)
return;
Process::Ptr process = new Process(Process::PrepareCommand(command), envMacros);
process->SetTimeout(timeout);
process->SetAdjustPriority(true);
process->Run([callback, command](const ProcessResult& pr) { callback(command, pr); });
}
ServiceState PluginUtility::ExitStatusToState(int exitStatus)
{
switch (exitStatus) {
case 0:
return ServiceOK;
case 1:
return ServiceWarning;
case 2:
return ServiceCritical;
default:
return ServiceUnknown;
}
}
std::pair<String, String> PluginUtility::ParseCheckOutput(const String& output)
{
String text;
String perfdata;
std::vector<String> lines = output.Split("\r\n");
for (const String& line : lines) {
size_t delim = line.FindFirstOf("|");
if (!text.IsEmpty())
text += "\n";
if (delim != String::NPos && line.FindFirstOf("=", delim) != String::NPos) {
text += line.SubStr(0, delim);
if (!perfdata.IsEmpty())
perfdata += " ";
perfdata += line.SubStr(delim + 1, line.GetLength());
} else {
text += line;
}
}
boost::algorithm::trim(perfdata);
return std::make_pair(text, perfdata);
}
Array::Ptr PluginUtility::SplitPerfdata(const String& perfdata)
{
ArrayData result;
size_t begin = 0;
String multi_prefix;
for (;;) {
size_t eqp = perfdata.FindFirstOf('=', begin);
if (eqp == String::NPos)
break;
String label = perfdata.SubStr(begin, eqp - begin);
if (label.GetLength() > 2 && label[0] == '\'' && label[label.GetLength() - 1] == '\'')
label = label.SubStr(1, label.GetLength() - 2);
size_t multi_index = label.RFind("::");
if (multi_index != String::NPos)
multi_prefix = "";
size_t spq = perfdata.FindFirstOf(' ', eqp);
if (spq == String::NPos)
spq = perfdata.GetLength();
String value = perfdata.SubStr(eqp + 1, spq - eqp - 1);
if (!multi_prefix.IsEmpty())
label = multi_prefix + "::" + label;
String pdv;
if (label.FindFirstOf(" ") != String::NPos)
pdv = "'" + label + "'=" + value;
else
pdv = label + "=" + value;
result.emplace_back(std::move(pdv));
if (multi_index != String::NPos)
multi_prefix = label.SubStr(0, multi_index);
begin = spq + 1;
}
return new Array(std::move(result));
}
String PluginUtility::FormatPerfdata(const Array::Ptr& perfdata, bool normalize)
{
if (!perfdata)
return "";
std::ostringstream result;
ObjectLock olock(perfdata);
bool first = true;
for (const Value& pdv : perfdata) {
if (!first)
result << " ";
else
first = false;
if (pdv.IsObjectType<PerfdataValue>()) {
result << static_cast<PerfdataValue::Ptr>(pdv)->Format();
} else if (normalize) {
PerfdataValue::Ptr normalized;
try {
normalized = PerfdataValue::Parse(pdv);
} catch (const std::invalid_argument& ex) {
Log(LogDebug, "PerfdataValue") << ex.what();
}
if (normalized) {
result << normalized->Format();
} else {
result << pdv;
}
} else {
result << pdv;
}
}
return result.str();
}
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