mirror of
https://github.com/Icinga/icinga2.git
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340 lines
10 KiB
C++
340 lines
10 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
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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/service.h"
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#include "icinga/notificationrequestmessage.h"
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#include "icinga/notificationmessage.h"
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#include "remoting/endpointmanager.h"
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#include "base/dynamictype.h"
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#include "base/objectlock.h"
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#include "base/logger_fwd.h"
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#include "config/configitembuilder.h"
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#include <boost/tuple/tuple.hpp>
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#include <boost/smart_ptr/make_shared.hpp>
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#include <boost/foreach.hpp>
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#include <boost/exception/diagnostic_information.hpp>
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using namespace icinga;
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static boost::mutex l_NotificationMutex;
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static std::map<String, std::set<Notification::WeakPtr> > l_NotificationsCache;
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static bool l_NotificationsCacheNeedsUpdate = false;
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static Timer::Ptr l_NotificationsCacheTimer;
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boost::signals2::signal<void (const Service::Ptr&, const String&, const NotificationType&, const Dictionary::Ptr&, const String&, const String&)> Service::OnNotificationSentChanged;
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void Service::NotificationSentRequestHandler(const RequestMessage& request)
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{
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NotificationMessage params;
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if (!request.GetParams(¶ms))
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return;
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String svcname = params.GetService();
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Service::Ptr service = Service::GetByName(svcname);
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String username = params.GetUser();
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String author = params.GetAuthor();
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String comment_text = params.GetCommentText();
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NotificationType notification_type = params.GetType();
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Dictionary::Ptr cr = params.GetCheckResult();
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OnNotificationSentChanged(service, username, notification_type, cr, author, comment_text);
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}
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void Service::RequestNotifications(NotificationType type, const Dictionary::Ptr& cr, const String& author, const String& text)
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{
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RequestMessage msg;
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msg.SetMethod("icinga::SendNotifications");
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NotificationRequestMessage params;
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msg.SetParams(params);
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params.SetService(GetName());
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params.SetType(type);
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params.SetCheckResult(cr);
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params.SetAuthor(author);
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params.SetText(text);
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Log(LogDebug, "icinga", "Sending notification anycast request for service '" + GetName() + "'");
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EndpointManager::GetInstance()->SendAnycastMessage(Endpoint::Ptr(), msg);
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}
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void Service::SendNotifications(NotificationType type, const Dictionary::Ptr& cr, const String& author, const String& text)
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{
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bool force = false;
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if (!GetEnableNotifications()) {
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if (!GetForceNextNotification()) {
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Log(LogInformation, "icinga", "Notifications are disabled for service '" + GetName() + "'.");
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return;
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}
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force = true;
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SetForceNextNotification(false);
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}
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Log(LogInformation, "icinga", "Sending notifications for service '" + GetName() + "'");
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std::set<Notification::Ptr> notifications = GetNotifications();
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if (notifications.empty())
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Log(LogInformation, "icinga", "Service '" + GetName() + "' does not have any notifications.");
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BOOST_FOREACH(const Notification::Ptr& notification, notifications) {
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try {
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notification->BeginExecuteNotification(type, cr, force, author, text);
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} catch (const std::exception& ex) {
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std::ostringstream msgbuf;
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msgbuf << "Exception occured during notification for service '"
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<< GetName() << "': " << boost::diagnostic_information(ex);
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String message = msgbuf.str();
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Log(LogWarning, "icinga", message);
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}
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}
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}
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void Service::InvalidateNotificationsCache(void)
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{
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boost::mutex::scoped_lock lock(l_NotificationMutex);
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if (l_NotificationsCacheNeedsUpdate)
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return; /* Someone else has already requested a refresh. */
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if (!l_NotificationsCacheTimer) {
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l_NotificationsCacheTimer = boost::make_shared<Timer>();
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l_NotificationsCacheTimer->SetInterval(0.5);
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l_NotificationsCacheTimer->OnTimerExpired.connect(boost::bind(&Service::RefreshNotificationsCache));
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l_NotificationsCacheTimer->Start();
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}
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l_NotificationsCacheNeedsUpdate = true;
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}
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void Service::RefreshNotificationsCache(void)
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{
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{
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boost::mutex::scoped_lock lock(l_NotificationMutex);
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if (!l_NotificationsCacheNeedsUpdate)
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return;
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l_NotificationsCacheNeedsUpdate = false;
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}
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Log(LogDebug, "icinga", "Updating Service notifications cache.");
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std::map<String, std::set<Notification::WeakPtr> > newNotificationsCache;
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BOOST_FOREACH(const DynamicObject::Ptr& object, DynamicType::GetObjects("Notification")) {
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const Notification::Ptr& notification = static_pointer_cast<Notification>(object);
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Service::Ptr service = notification->GetService();
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if (!service)
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continue;
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newNotificationsCache[service->GetName()].insert(notification);
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}
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boost::mutex::scoped_lock lock(l_NotificationMutex);
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l_NotificationsCache.swap(newNotificationsCache);
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}
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std::set<Notification::Ptr> Service::GetNotifications(void) const
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{
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std::set<Notification::Ptr> notifications;
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{
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boost::mutex::scoped_lock lock(l_NotificationMutex);
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BOOST_FOREACH(const Notification::WeakPtr& wservice, l_NotificationsCache[GetName()]) {
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Notification::Ptr notification = wservice.lock();
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if (!notification)
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continue;
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notifications.insert(notification);
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}
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}
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return notifications;
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}
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void Service::UpdateSlaveNotifications(void)
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{
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Dictionary::Ptr oldNotifications;
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ConfigItem::Ptr serviceItem, hostItem;
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serviceItem = ConfigItem::GetObject("Service", GetName());
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/* Don't create slave notifications unless we own this object */
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if (!serviceItem)
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return;
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Host::Ptr host = GetHost();
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if (!host)
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return;
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hostItem = ConfigItem::GetObject("Host", host->GetName());
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/* Don't create slave notifications unless we own the host */
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if (!hostItem)
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return;
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{
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ObjectLock olock(this);
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oldNotifications = m_SlaveNotifications;
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}
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std::vector<Dictionary::Ptr> descLists;
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descLists.push_back(Get("notifications"));
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Dictionary::Ptr newNotifications;
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newNotifications = boost::make_shared<Dictionary>();
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descLists.push_back(host->Get("notifications"));
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for (int i = 0; i < 2; i++) {
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Dictionary::Ptr descs;
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ConfigItem::Ptr item;
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if (i == 0) {
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/* Host notification descs */
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descs = host->Get("notifications");
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item = hostItem;
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} else {
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/* Service notification descs */
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descs = Get("notifications");
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item = serviceItem;
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}
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if (!descs)
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continue;
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ObjectLock olock(descs);
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String nfcname;
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Value nfcdesc;
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BOOST_FOREACH(boost::tie(nfcname, nfcdesc), descs) {
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std::ostringstream namebuf;
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namebuf << GetName() << ":" << nfcname;
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String name = namebuf.str();
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ConfigItemBuilder::Ptr builder = boost::make_shared<ConfigItemBuilder>(item->GetDebugInfo());
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builder->SetType("Notification");
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builder->SetName(name);
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builder->AddExpression("host_name", OperatorSet, host->GetName());
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builder->AddExpression("service", OperatorSet, GetShortName());
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if (!nfcdesc.IsObjectType<Dictionary>())
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BOOST_THROW_EXCEPTION(std::invalid_argument("Notification description must be a dictionary."));
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Dictionary::Ptr notification = nfcdesc;
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Array::Ptr templates = notification->Get("templates");
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if (templates) {
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ObjectLock tlock(templates);
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BOOST_FOREACH(const Value& tmpl, templates) {
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builder->AddParent(tmpl);
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}
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}
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/* Clone attributes from the host/service object. */
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std::set<String, string_iless> keys;
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keys.insert("users");
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keys.insert("groups");
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keys.insert("notification_interval");
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keys.insert("notification_period");
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keys.insert("notification_type_filter");
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keys.insert("notification_state_filter");
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keys.insert("export_macros");
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ExpressionList::Ptr svc_exprl = boost::make_shared<ExpressionList>();
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item->GetLinkedExpressionList()->ExtractFiltered(keys, svc_exprl);
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builder->AddExpressionList(svc_exprl);
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/* Clone attributes from the notification expression list. */
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std::vector<String> path;
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path.push_back("notifications");
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path.push_back(nfcname);
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ExpressionList::Ptr nfc_exprl = boost::make_shared<ExpressionList>();
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item->GetLinkedExpressionList()->ExtractPath(path, nfc_exprl);
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builder->AddExpressionList(nfc_exprl);
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ConfigItem::Ptr notificationItem = builder->Compile();
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notificationItem->Commit();
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newNotifications->Set(name, notificationItem);
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}
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}
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if (oldNotifications) {
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ObjectLock olock(oldNotifications);
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ConfigItem::Ptr notification;
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BOOST_FOREACH(boost::tie(boost::tuples::ignore, notification), oldNotifications) {
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if (!notification)
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continue;
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if (!newNotifications->Contains(notification->GetName()))
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notification->Unregister();
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}
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}
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{
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ObjectLock olock(this);
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m_SlaveNotifications = newNotifications;
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}
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}
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bool Service::GetEnableNotifications(void) const
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{
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if (m_EnableNotifications.IsEmpty())
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return true;
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else
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return m_EnableNotifications;
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}
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void Service::SetEnableNotifications(bool enabled)
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{
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m_EnableNotifications = enabled;
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Touch("enable_notifications");
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}
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bool Service::GetForceNextNotification(void) const
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{
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if (m_ForceNextNotification.IsEmpty())
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return false;
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return static_cast<bool>(m_ForceNextNotification);
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}
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void Service::SetForceNextNotification(bool forced)
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{
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m_ForceNextNotification = forced ? 1 : 0;
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Touch("force_next_notification");
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}
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