1 files changed, 322 insertions, 0 deletions
diff --git a/lib/icinga/checkable.cpp b/lib/icinga/checkable.cpp
new file mode 100644
index 0000000..ddf84cd
--- /dev/null
+++ b/lib/icinga/checkable.cpp
@@ -0,0 +1,322 @@
+/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
+
+#include "icinga/checkable.hpp"
+#include "icinga/checkable-ti.cpp"
+#include "icinga/host.hpp"
+#include "icinga/service.hpp"
+#include "base/objectlock.hpp"
+#include "base/utility.hpp"
+#include "base/exception.hpp"
+#include "base/timer.hpp"
+#include <boost/thread/once.hpp>
+
+using namespace icinga;
+
+REGISTER_TYPE_WITH_PROTOTYPE(Checkable, Checkable::GetPrototype());
+INITIALIZE_ONCE(&Checkable::StaticInitialize);
+
+const std::map<String, int> Checkable::m_FlappingStateFilterMap ({
+	{"OK", FlappingStateFilterOk},
+	{"Warning", FlappingStateFilterWarning},
+	{"Critical", FlappingStateFilterCritical},
+	{"Unknown", FlappingStateFilterUnknown},
+	{"Up", FlappingStateFilterOk},
+	{"Down", FlappingStateFilterCritical},
+});
+
+boost::signals2::signal<void (const Checkable::Ptr&, const String&, const String&, AcknowledgementType, bool, bool, double, double, const MessageOrigin::Ptr&)> Checkable::OnAcknowledgementSet;
+boost::signals2::signal<void (const Checkable::Ptr&, const String&, double, const MessageOrigin::Ptr&)> Checkable::OnAcknowledgementCleared;
+boost::signals2::signal<void (const Checkable::Ptr&, double)> Checkable::OnFlappingChange;
+
+static Timer::Ptr l_CheckablesFireSuppressedNotifications;
+static Timer::Ptr l_CleanDeadlinedExecutions;
+
+thread_local std::function<void(const Value& commandLine, const ProcessResult&)> Checkable::ExecuteCommandProcessFinishedHandler;
+
+void Checkable::StaticInitialize()
+{
+	/* fixed downtime start */
+	Downtime::OnDowntimeStarted.connect([](const Downtime::Ptr& downtime) { Checkable::NotifyFixedDowntimeStart(downtime); });
+	/* flexible downtime start */
+	Downtime::OnDowntimeTriggered.connect([](const Downtime::Ptr& downtime) { Checkable::NotifyFlexibleDowntimeStart(downtime); });
+	/* fixed/flexible downtime end */
+	Downtime::OnDowntimeRemoved.connect([](const Downtime::Ptr& downtime) { Checkable::NotifyDowntimeEnd(downtime); });
+}
+
+Checkable::Checkable()
+{
+	SetSchedulingOffset(Utility::Random());
+}
+
+void Checkable::OnConfigLoaded()
+{
+	ObjectImpl<Checkable>::OnConfigLoaded();
+
+	SetFlappingIgnoreStatesFilter(FilterArrayToInt(GetFlappingIgnoreStates(), m_FlappingStateFilterMap, ~0));
+}
+
+void Checkable::OnAllConfigLoaded()
+{
+	ObjectImpl<Checkable>::OnAllConfigLoaded();
+
+	Endpoint::Ptr endpoint = GetCommandEndpoint();
+
+	if (endpoint) {
+		Zone::Ptr checkableZone = static_pointer_cast<Zone>(GetZone());
+
+		if (checkableZone) {
+			Zone::Ptr cmdZone = endpoint->GetZone();
+
+			if (cmdZone != checkableZone && cmdZone->GetParent() != checkableZone) {
+				BOOST_THROW_EXCEPTION(ValidationError(this, { "command_endpoint" },
+					"Command endpoint must be in zone '" + checkableZone->GetName() + "' or in a direct child zone thereof."));
+			}
+		} else {
+			BOOST_THROW_EXCEPTION(ValidationError(this, { "command_endpoint" },
+				"Checkable with command endpoint requires a zone. Please check the troubleshooting documentation."));
+		}
+	}
+}
+
+void Checkable::Start(bool runtimeCreated)
+{
+	double now = Utility::GetTime();
+
+	{
+		auto cr (GetLastCheckResult());
+
+		if (GetLastCheckStarted() > (cr ? cr->GetExecutionEnd() : 0.0)) {
+			SetNextCheck(GetLastCheckStarted());
+		}
+	}
+
+	if (GetNextCheck() < now + 60) {
+		double delta = std::min(GetCheckInterval(), 60.0);
+		delta *= (double)std::rand() / RAND_MAX;
+		SetNextCheck(now + delta);
+	}
+
+	ObjectImpl<Checkable>::Start(runtimeCreated);
+
+	static boost::once_flag once = BOOST_ONCE_INIT;
+
+	boost::call_once(once, []() {
+		l_CheckablesFireSuppressedNotifications = Timer::Create();
+		l_CheckablesFireSuppressedNotifications->SetInterval(5);
+		l_CheckablesFireSuppressedNotifications->OnTimerExpired.connect(&Checkable::FireSuppressedNotificationsTimer);
+		l_CheckablesFireSuppressedNotifications->Start();
+
+		l_CleanDeadlinedExecutions = Timer::Create();
+		l_CleanDeadlinedExecutions->SetInterval(300);
+		l_CleanDeadlinedExecutions->OnTimerExpired.connect(&Checkable::CleanDeadlinedExecutions);
+		l_CleanDeadlinedExecutions->Start();
+	});
+}
+
+void Checkable::AddGroup(const String& name)
+{
+	std::unique_lock<std::mutex> lock(m_CheckableMutex);
+
+	Array::Ptr groups;
+	auto *host = dynamic_cast<Host *>(this);
+
+	if (host)
+		groups = host->GetGroups();
+	else
+		groups = static_cast<Service *>(this)->GetGroups();
+
+	if (groups && groups->Contains(name))
+		return;
+
+	if (!groups)
+		groups = new Array();
+
+	groups->Add(name);
+}
+
+AcknowledgementType Checkable::GetAcknowledgement()
+{
+	auto avalue = static_cast<AcknowledgementType>(GetAcknowledgementRaw());
+
+	if (avalue != AcknowledgementNone) {
+		double expiry = GetAcknowledgementExpiry();
+
+		if (expiry != 0 && expiry < Utility::GetTime()) {
+			avalue = AcknowledgementNone;
+			ClearAcknowledgement("");
+		}
+	}
+
+	return avalue;
+}
+
+bool Checkable::IsAcknowledged() const
+{
+	return const_cast<Checkable *>(this)->GetAcknowledgement() != AcknowledgementNone;
+}
+
+void Checkable::AcknowledgeProblem(const String& author, const String& comment, AcknowledgementType type, bool notify, bool persistent, double changeTime, double expiry, const MessageOrigin::Ptr& origin)
+{
+	SetAcknowledgementRaw(type);
+	SetAcknowledgementExpiry(expiry);
+
+	if (notify && !IsPaused())
+		OnNotificationsRequested(this, NotificationAcknowledgement, GetLastCheckResult(), author, comment, nullptr);
+
+	Log(LogInformation, "Checkable")
+		<< "Acknowledgement set for checkable '" << GetName() << "'.";
+
+	OnAcknowledgementSet(this, author, comment, type, notify, persistent, changeTime, expiry, origin);
+
+	SetAcknowledgementLastChange(changeTime);
+}
+
+void Checkable::ClearAcknowledgement(const String& removedBy, double changeTime, const MessageOrigin::Ptr& origin)
+{
+	ObjectLock oLock (this);
+
+	bool wasAcked = GetAcknowledgementRaw() != AcknowledgementNone;
+
+	SetAcknowledgementRaw(AcknowledgementNone);
+	SetAcknowledgementExpiry(0);
+
+	Log(LogInformation, "Checkable")
+		<< "Acknowledgement cleared for checkable '" << GetName() << "'.";
+
+	if (wasAcked) {
+		OnAcknowledgementCleared(this, removedBy, changeTime, origin);
+
+		SetAcknowledgementLastChange(changeTime);
+	}
+}
+
+Endpoint::Ptr Checkable::GetCommandEndpoint() const
+{
+	return Endpoint::GetByName(GetCommandEndpointRaw());
+}
+
+int Checkable::GetSeverity() const
+{
+	/* overridden in Host/Service class. */
+	return 0;
+}
+
+bool Checkable::GetProblem() const
+{
+	auto cr (GetLastCheckResult());
+
+	return cr && !IsStateOK(cr->GetState());
+}
+
+bool Checkable::GetHandled() const
+{
+	return GetProblem() && (IsInDowntime() || IsAcknowledged());
+}
+
+Timestamp Checkable::GetNextUpdate() const
+{
+	auto cr (GetLastCheckResult());
+	double interval, latency;
+
+	// TODO: Document this behavior.
+	if (cr) {
+		interval = GetEnableActiveChecks() && GetProblem() && GetStateType() == StateTypeSoft ? GetRetryInterval() : GetCheckInterval();
+		latency = cr->GetExecutionEnd() - cr->GetScheduleStart();
+	} else {
+		interval = GetCheckInterval();
+		latency = 0.0;
+	}
+
+	return (GetEnableActiveChecks() ? GetNextCheck() : (cr ? cr->GetExecutionEnd() : Application::GetStartTime()) + interval) + interval + 2 * latency;
+}
+
+void Checkable::NotifyFixedDowntimeStart(const Downtime::Ptr& downtime)
+{
+	if (!downtime->GetFixed())
+		return;
+
+	NotifyDowntimeInternal(downtime);
+}
+
+void Checkable::NotifyFlexibleDowntimeStart(const Downtime::Ptr& downtime)
+{
+	if (downtime->GetFixed())
+		return;
+
+	NotifyDowntimeInternal(downtime);
+}
+
+void Checkable::NotifyDowntimeInternal(const Downtime::Ptr& downtime)
+{
+	Checkable::Ptr checkable = downtime->GetCheckable();
+
+	if (!checkable->IsPaused())
+		OnNotificationsRequested(checkable, NotificationDowntimeStart, checkable->GetLastCheckResult(), downtime->GetAuthor(), downtime->GetComment(), nullptr);
+}
+
+void Checkable::NotifyDowntimeEnd(const Downtime::Ptr& downtime)
+{
+	/* don't send notifications for downtimes which never triggered */
+	if (!downtime->IsTriggered())
+		return;
+
+	Checkable::Ptr checkable = downtime->GetCheckable();
+
+	if (!checkable->IsPaused())
+		OnNotificationsRequested(checkable, NotificationDowntimeEnd, checkable->GetLastCheckResult(), downtime->GetAuthor(), downtime->GetComment(), nullptr);
+}
+
+void Checkable::ValidateCheckInterval(const Lazy<double>& lvalue, const ValidationUtils& utils)
+{
+	ObjectImpl<Checkable>::ValidateCheckInterval(lvalue, utils);
+
+	if (lvalue() <= 0)
+		BOOST_THROW_EXCEPTION(ValidationError(this, { "check_interval" }, "Interval must be greater than 0."));
+}
+
+void Checkable::ValidateRetryInterval(const Lazy<double>& lvalue, const ValidationUtils& utils)
+{
+	ObjectImpl<Checkable>::ValidateRetryInterval(lvalue, utils);
+
+	if (lvalue() <= 0)
+		BOOST_THROW_EXCEPTION(ValidationError(this, { "retry_interval" }, "Interval must be greater than 0."));
+}
+
+void Checkable::ValidateMaxCheckAttempts(const Lazy<int>& lvalue, const ValidationUtils& utils)
+{
+	ObjectImpl<Checkable>::ValidateMaxCheckAttempts(lvalue, utils);
+
+	if (lvalue() <= 0)
+		BOOST_THROW_EXCEPTION(ValidationError(this, { "max_check_attempts" }, "Value must be greater than 0."));
+}
+
+void Checkable::CleanDeadlinedExecutions(const Timer * const&)
+{
+	double now = Utility::GetTime();
+	Dictionary::Ptr executions;
+	Dictionary::Ptr execution;
+
+	for (auto& host : ConfigType::GetObjectsByType<Host>()) {
+		executions = host->GetExecutions();
+		if (executions) {
+			for (const String& key : executions->GetKeys()) {
+				execution = executions->Get(key);
+				if (execution->Contains("deadline") && now > execution->Get("deadline")) {
+					executions->Remove(key);
+				}
+			}
+		}
+	}
+
+	for (auto& service : ConfigType::GetObjectsByType<Service>()) {
+		executions = service->GetExecutions();
+		if (executions) {
+			for (const String& key : executions->GetKeys()) {
+				execution = executions->Get(key);
+				if (execution->Contains("deadline") && now > execution->Get("deadline")) {
+					executions->Remove(key);
+				}
+			}
+		}
+	}
+}