1 files changed, 218 insertions, 0 deletions
diff --git a/lib/icinga/pluginutility.cpp b/lib/icinga/pluginutility.cpp
new file mode 100644
index 0000000..4dc46f7
--- /dev/null
+++ b/lib/icinga/pluginutility.cpp
@@ -0,0 +1,218 @@
+/* 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);
+		boost::algorithm::trim_left(label);
+
+		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();
+}