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https://github.com/Icinga/icinga2.git
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8d56f8e951
If the checkresult's state is 1, this is internally mapped to Up. The added downtime will check for triggers and might cause a wrong downtime start event. refs #5202
427 lines
12 KiB
C++
427 lines
12 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2017 Icinga Development Team (https://www.icinga.com/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "icinga/downtime.hpp"
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#include "icinga/downtime.tcpp"
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#include "icinga/host.hpp"
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#include "icinga/scheduleddowntime.hpp"
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#include "remote/configobjectutility.hpp"
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#include "base/configtype.hpp"
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#include "base/utility.hpp"
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#include "base/timer.hpp"
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#include <boost/algorithm/string/split.hpp>
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#include <boost/algorithm/string/classification.hpp>
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using namespace icinga;
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static int l_NextDowntimeID = 1;
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static boost::mutex l_DowntimeMutex;
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static std::map<int, String> l_LegacyDowntimesCache;
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static Timer::Ptr l_DowntimesExpireTimer;
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static Timer::Ptr l_DowntimesStartTimer;
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boost::signals2::signal<void (const Downtime::Ptr&)> Downtime::OnDowntimeAdded;
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boost::signals2::signal<void (const Downtime::Ptr&)> Downtime::OnDowntimeRemoved;
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boost::signals2::signal<void (const Downtime::Ptr&)> Downtime::OnDowntimeStarted;
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boost::signals2::signal<void (const Downtime::Ptr&)> Downtime::OnDowntimeTriggered;
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INITIALIZE_ONCE(&Downtime::StaticInitialize);
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REGISTER_TYPE(Downtime);
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void Downtime::StaticInitialize(void)
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{
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l_DowntimesStartTimer = new Timer();
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l_DowntimesStartTimer->SetInterval(5);
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l_DowntimesStartTimer->OnTimerExpired.connect(boost::bind(&Downtime::DowntimesStartTimerHandler));
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l_DowntimesStartTimer->Start();
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l_DowntimesExpireTimer = new Timer();
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l_DowntimesExpireTimer->SetInterval(60);
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l_DowntimesExpireTimer->OnTimerExpired.connect(boost::bind(&Downtime::DowntimesExpireTimerHandler));
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l_DowntimesExpireTimer->Start();
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}
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String DowntimeNameComposer::MakeName(const String& shortName, const Object::Ptr& context) const
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{
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Downtime::Ptr downtime = dynamic_pointer_cast<Downtime>(context);
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if (!downtime)
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return "";
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String name = downtime->GetHostName();
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if (!downtime->GetServiceName().IsEmpty())
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name += "!" + downtime->GetServiceName();
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name += "!" + shortName;
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return name;
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}
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Dictionary::Ptr DowntimeNameComposer::ParseName(const String& name) const
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{
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std::vector<String> tokens;
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boost::algorithm::split(tokens, name, boost::is_any_of("!"));
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if (tokens.size() < 2)
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BOOST_THROW_EXCEPTION(std::invalid_argument("Invalid Downtime name."));
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Dictionary::Ptr result = new Dictionary();
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result->Set("host_name", tokens[0]);
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if (tokens.size() > 2) {
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result->Set("service_name", tokens[1]);
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result->Set("name", tokens[2]);
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} else {
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result->Set("name", tokens[1]);
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}
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return result;
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}
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void Downtime::OnAllConfigLoaded(void)
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{
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ObjectImpl<Downtime>::OnAllConfigLoaded();
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Host::Ptr host = Host::GetByName(GetHostName());
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if (GetServiceName().IsEmpty())
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m_Checkable = host;
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else
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m_Checkable = host->GetServiceByShortName(GetServiceName());
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if (!m_Checkable)
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BOOST_THROW_EXCEPTION(ScriptError("Downtime '" + GetName() + "' references a host/service which doesn't exist.", GetDebugInfo()));
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}
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void Downtime::Start(bool runtimeCreated)
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{
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ObjectImpl<Downtime>::Start(runtimeCreated);
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{
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boost::mutex::scoped_lock lock(l_DowntimeMutex);
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SetLegacyId(l_NextDowntimeID);
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l_LegacyDowntimesCache[l_NextDowntimeID] = GetName();
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l_NextDowntimeID++;
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}
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Checkable::Ptr checkable = GetCheckable();
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checkable->RegisterDowntime(this);
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if (runtimeCreated)
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OnDowntimeAdded(this);
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/* if this object is already in a NOT-OK state trigger
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* this downtime now *after* it has been added (important
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* for DB IDO, etc.)
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*/
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if (!checkable->IsStateOK(checkable->GetStateRaw())) {
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Log(LogNotice, "Downtime")
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<< "Checkable '" << checkable->GetName() << "' already in a NOT-OK state."
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<< " Triggering downtime now.";
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TriggerDowntime();
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}
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}
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void Downtime::Stop(bool runtimeRemoved)
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{
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GetCheckable()->UnregisterDowntime(this);
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if (runtimeRemoved)
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OnDowntimeRemoved(this);
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ObjectImpl<Downtime>::Stop(runtimeRemoved);
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}
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Checkable::Ptr Downtime::GetCheckable(void) const
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{
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return static_pointer_cast<Checkable>(m_Checkable);
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}
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bool Downtime::IsInEffect(void) const
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{
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double now = Utility::GetTime();
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if (now < GetStartTime() ||
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now > GetEndTime())
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return false;
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if (GetFixed())
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return true;
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double triggerTime = GetTriggerTime();
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if (triggerTime == 0)
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return false;
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return (now < triggerTime + GetDuration());
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}
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bool Downtime::IsTriggered(void) const
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{
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double now = Utility::GetTime();
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double triggerTime = GetTriggerTime();
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return (triggerTime > 0 && triggerTime <= now);
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}
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bool Downtime::IsExpired(void) const
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{
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double now = Utility::GetTime();
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if (GetFixed())
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return (GetEndTime() < now);
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else {
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/* triggered flexible downtime not in effect anymore */
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if (IsTriggered() && !IsInEffect())
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return true;
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/* flexible downtime never triggered */
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else if (!IsTriggered() && (GetEndTime() < now))
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return true;
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else
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return false;
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}
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}
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bool Downtime::HasValidConfigOwner(void) const
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{
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String configOwner = GetConfigOwner();
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return configOwner.IsEmpty() || GetObject<ScheduledDowntime>(configOwner);
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}
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int Downtime::GetNextDowntimeID(void)
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{
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boost::mutex::scoped_lock lock(l_DowntimeMutex);
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return l_NextDowntimeID;
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}
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String Downtime::AddDowntime(const Checkable::Ptr& checkable, const String& author,
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const String& comment, double startTime, double endTime, bool fixed,
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const String& triggeredBy, double duration,
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const String& scheduledDowntime, const String& scheduledBy,
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const String& id, const MessageOrigin::Ptr& origin)
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{
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String fullName;
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if (id.IsEmpty())
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fullName = checkable->GetName() + "!" + Utility::NewUniqueID();
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else
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fullName = id;
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Dictionary::Ptr attrs = new Dictionary();
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attrs->Set("author", author);
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attrs->Set("comment", comment);
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attrs->Set("start_time", startTime);
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attrs->Set("end_time", endTime);
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attrs->Set("fixed", fixed);
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attrs->Set("duration", duration);
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attrs->Set("triggered_by", triggeredBy);
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attrs->Set("scheduled_by", scheduledBy);
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attrs->Set("config_owner", scheduledDowntime);
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attrs->Set("entry_time", Utility::GetTime());
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Host::Ptr host;
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Service::Ptr service;
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tie(host, service) = GetHostService(checkable);
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attrs->Set("host_name", host->GetName());
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if (service)
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attrs->Set("service_name", service->GetShortName());
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String zone = checkable->GetZoneName();
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if (!zone.IsEmpty())
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attrs->Set("zone", zone);
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String config = ConfigObjectUtility::CreateObjectConfig(Downtime::TypeInstance, fullName, true, Array::Ptr(), attrs);
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Array::Ptr errors = new Array();
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if (!ConfigObjectUtility::CreateObject(Downtime::TypeInstance, fullName, config, errors)) {
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ObjectLock olock(errors);
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for (const String& error : errors) {
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Log(LogCritical, "Downtime", error);
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}
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BOOST_THROW_EXCEPTION(std::runtime_error("Could not create downtime."));
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}
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if (!triggeredBy.IsEmpty()) {
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Downtime::Ptr parentDowntime = Downtime::GetByName(triggeredBy);
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Array::Ptr triggers = parentDowntime->GetTriggers();
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ObjectLock olock(triggers);
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if (!triggers->Contains(fullName))
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triggers->Add(fullName);
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}
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Downtime::Ptr downtime = Downtime::GetByName(fullName);
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if (!downtime)
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BOOST_THROW_EXCEPTION(std::runtime_error("Could not create downtime object."));
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Log(LogNotice, "Downtime")
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<< "Added downtime '" << downtime->GetName()
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<< "' between '" << Utility::FormatDateTime("%Y-%m-%d %H:%M:%S", startTime)
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<< "' and '" << Utility::FormatDateTime("%Y-%m-%d %H:%M:%S", endTime) << "'.";
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return fullName;
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}
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void Downtime::RemoveDowntime(const String& id, bool cancelled, bool expired, const MessageOrigin::Ptr& origin)
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{
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Downtime::Ptr downtime = Downtime::GetByName(id);
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if (!downtime || downtime->GetPackage() != "_api")
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return;
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String config_owner = downtime->GetConfigOwner();
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if (!config_owner.IsEmpty() && !expired) {
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Log(LogWarning, "Downtime")
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<< "Cannot remove downtime '" << downtime->GetName() << "'. It is owned by scheduled downtime object '" << config_owner << "'";
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return;
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}
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downtime->SetWasCancelled(cancelled);
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Log(LogNotice, "Downtime")
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<< "Removed downtime '" << downtime->GetName() << "' from object '" << downtime->GetCheckable()->GetName() << "'.";
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Array::Ptr errors = new Array();
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if (!ConfigObjectUtility::DeleteObject(downtime, false, errors)) {
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ObjectLock olock(errors);
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for (const String& error : errors) {
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Log(LogCritical, "Downtime", error);
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}
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BOOST_THROW_EXCEPTION(std::runtime_error("Could not remove downtime."));
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}
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}
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bool Downtime::CanBeTriggered(void)
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{
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if (IsInEffect() && IsTriggered())
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return false;
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if (IsExpired())
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return false;
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double now = Utility::GetTime();
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if (now < GetStartTime() || now > GetEndTime())
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return false;
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return true;
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}
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void Downtime::TriggerDowntime(void)
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{
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if (!CanBeTriggered())
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return;
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Log(LogNotice, "Downtime")
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<< "Triggering downtime '" << GetName() << "'.";
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if (GetTriggerTime() == 0)
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SetTriggerTime(Utility::GetTime());
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Array::Ptr triggers = GetTriggers();
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{
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ObjectLock olock(triggers);
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for (const String& triggerName : triggers) {
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Downtime::Ptr downtime = Downtime::GetByName(triggerName);
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if (!downtime)
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continue;
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downtime->TriggerDowntime();
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}
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}
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OnDowntimeTriggered(this);
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}
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String Downtime::GetDowntimeIDFromLegacyID(int id)
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{
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boost::mutex::scoped_lock lock(l_DowntimeMutex);
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auto it = l_LegacyDowntimesCache.find(id);
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if (it == l_LegacyDowntimesCache.end())
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return Empty;
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return it->second;
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}
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void Downtime::DowntimesStartTimerHandler(void)
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{
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/* Start fixed downtimes. Flexible downtimes will be triggered on-demand. */
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for (const Downtime::Ptr& downtime : ConfigType::GetObjectsByType<Downtime>()) {
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if (downtime->IsActive() &&
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downtime->CanBeTriggered() &&
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downtime->GetFixed()) {
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/* Send notifications. */
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OnDowntimeStarted(downtime);
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/* Trigger fixed downtime immediately. */
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downtime->TriggerDowntime();
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}
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}
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}
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void Downtime::DowntimesExpireTimerHandler(void)
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{
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std::vector<Downtime::Ptr> downtimes;
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for (const Downtime::Ptr& downtime : ConfigType::GetObjectsByType<Downtime>()) {
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downtimes.push_back(downtime);
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}
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for (const Downtime::Ptr& downtime : downtimes) {
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/* Only remove downtimes which are activated after daemon start. */
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if (downtime->IsActive() && (downtime->IsExpired() || !downtime->HasValidConfigOwner()))
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RemoveDowntime(downtime->GetName(), false, true);
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}
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}
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void Downtime::ValidateStartTime(const Timestamp& value, const ValidationUtils& utils)
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{
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ObjectImpl<Downtime>::ValidateStartTime(value, utils);
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if (value <= 0)
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BOOST_THROW_EXCEPTION(ValidationError(this, boost::assign::list_of("start_time"), "Start time must be greater than 0."));
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}
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void Downtime::ValidateEndTime(const Timestamp& value, const ValidationUtils& utils)
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{
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ObjectImpl<Downtime>::ValidateEndTime(value, utils);
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if (value <= 0)
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BOOST_THROW_EXCEPTION(ValidationError(this, boost::assign::list_of("end_time"), "End time must be greater than 0."));
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}
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