icinga2/lib/icinga/notification.cpp

461 lines
14 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2014 Icinga Development Team (http://www.icinga.org) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "icinga/notification.hpp"
#include "icinga/notificationcommand.hpp"
#include "icinga/service.hpp"
#include "config/configcompilercontext.hpp"
#include "base/objectlock.hpp"
#include "base/logger.hpp"
#include "base/utility.hpp"
#include "base/convert.hpp"
#include "base/exception.hpp"
#include "base/initialize.hpp"
#include "base/scriptvariable.hpp"
#include "base/scriptfunction.hpp"
#include <boost/foreach.hpp>
using namespace icinga;
REGISTER_TYPE(Notification);
REGISTER_SCRIPTFUNCTION(ValidateNotificationFilters, &Notification::ValidateFilters);
INITIALIZE_ONCE(&Notification::StaticInitialize);
boost::signals2::signal<void (const Notification::Ptr&, double, const MessageOrigin&)> Notification::OnNextNotificationChanged;
String NotificationNameComposer::MakeName(const String& shortName, const Dictionary::Ptr& props) const
{
if (!props)
return "";
String name = props->Get("host_name");
if (props->Contains("service_name"))
name += "!" + props->Get("service_name");
name += "!" + shortName;
return name;
}
void Notification::StaticInitialize(void)
{
ScriptVariable::Set("OK", StateFilterOK, true, true);
ScriptVariable::Set("Warning", StateFilterWarning, true, true);
ScriptVariable::Set("Critical", StateFilterCritical, true, true);
ScriptVariable::Set("Unknown", StateFilterUnknown, true, true);
ScriptVariable::Set("Up", StateFilterUp, true, true);
ScriptVariable::Set("Down", StateFilterDown, true, true);
ScriptVariable::Set("DowntimeStart", 1 << NotificationDowntimeStart, true, true);
ScriptVariable::Set("DowntimeEnd", 1 << NotificationDowntimeEnd, true, true);
ScriptVariable::Set("DowntimeRemoved", 1 << NotificationDowntimeRemoved, true, true);
ScriptVariable::Set("Custom", 1 << NotificationCustom, true, true);
ScriptVariable::Set("Acknowledgement", 1 << NotificationAcknowledgement, true, true);
ScriptVariable::Set("Problem", 1 << NotificationProblem, true, true);
ScriptVariable::Set("Recovery", 1 << NotificationRecovery, true, true);
ScriptVariable::Set("FlappingStart", 1 << NotificationFlappingStart, true, true);
ScriptVariable::Set("FlappingEnd", 1 << NotificationFlappingEnd, true, true);
}
void Notification::OnConfigLoaded(void)
{
SetTypeFilter(FilterArrayToInt(GetTypes(), ~0));
SetStateFilter(FilterArrayToInt(GetStates(), ~0));
Checkable::Ptr obj = GetCheckable();
if (obj)
obj->AddNotification(GetSelf());
}
void Notification::Start(void)
{
DynamicObject::Start();
Checkable::Ptr obj = GetCheckable();
if (obj)
obj->AddNotification(GetSelf());
}
void Notification::Stop(void)
{
DynamicObject::Stop();
Checkable::Ptr obj = GetCheckable();
if (obj)
obj->RemoveNotification(GetSelf());
}
Checkable::Ptr Notification::GetCheckable(void) const
{
Host::Ptr host = Host::GetByName(GetHostName());
if (GetServiceName().IsEmpty())
return host;
else
return host->GetServiceByShortName(GetServiceName());
}
NotificationCommand::Ptr Notification::GetCommand(void) const
{
return NotificationCommand::GetByName(GetCommandRaw());
}
std::set<User::Ptr> Notification::GetUsers(void) const
{
std::set<User::Ptr> result;
Array::Ptr users = GetUsersRaw();
if (users) {
ObjectLock olock(users);
BOOST_FOREACH(const String& name, users) {
User::Ptr user = User::GetByName(name);
if (!user)
continue;
result.insert(user);
}
}
return result;
}
std::set<UserGroup::Ptr> Notification::GetUserGroups(void) const
{
std::set<UserGroup::Ptr> result;
Array::Ptr groups = GetUserGroupsRaw();
if (groups) {
ObjectLock olock(groups);
BOOST_FOREACH(const String& name, groups) {
UserGroup::Ptr ug = UserGroup::GetByName(name);
if (!ug)
continue;
result.insert(ug);
}
}
return result;
}
TimePeriod::Ptr Notification::GetPeriod(void) const
{
return TimePeriod::GetByName(GetPeriodRaw());
}
double Notification::GetNextNotification(void) const
{
return GetNextNotificationRaw();
}
/**
* Sets the timestamp when the next periodical notification should be sent.
* This does not affect notifications that are sent for state changes.
*/
void Notification::SetNextNotification(double time, const MessageOrigin& origin)
{
SetNextNotificationRaw(time);
OnNextNotificationChanged(GetSelf(), time, origin);
}
void Notification::UpdateNotificationNumber(void)
{
SetNotificationNumber(GetNotificationNumber() + 1);
}
void Notification::ResetNotificationNumber(void)
{
SetNotificationNumber(0);
}
String Notification::NotificationTypeToString(NotificationType type)
{
switch (type) {
case NotificationDowntimeStart:
return "DOWNTIMESTART";
case NotificationDowntimeEnd:
return "DOWNTIMEEND";
case NotificationDowntimeRemoved:
return "DOWNTIMECANCELLED";
case NotificationCustom:
return "CUSTOM";
case NotificationAcknowledgement:
return "ACKNOWLEDGEMENT";
case NotificationProblem:
return "PROBLEM";
case NotificationRecovery:
return "RECOVERY";
case NotificationFlappingStart:
return "FLAPPINGSTART";
case NotificationFlappingEnd:
return "FLAPPINGEND";
default:
return "UNKNOWN_NOTIFICATION";
}
}
void Notification::BeginExecuteNotification(NotificationType type, const CheckResult::Ptr& cr, bool force, const String& author, const String& text)
{
ASSERT(!OwnsLock());
Checkable::Ptr checkable = GetCheckable();
if (!force) {
TimePeriod::Ptr tp = GetPeriod();
if (tp && !tp->IsInside(Utility::GetTime())) {
Log(LogNotice, "Notification", "Not sending notifications for notification object '" + GetName() + "': not in timeperiod");
return;
}
double now = Utility::GetTime();
Dictionary::Ptr times = GetTimes();
if (type == NotificationProblem) {
if (times && times->Contains("begin") && now < checkable->GetLastHardStateChange() + times->Get("begin")) {
Log(LogNotice, "Notification", "Not sending notifications for notification object '" + GetName() + "': before escalation range");
return;
}
if (times && times->Contains("end") && now > checkable->GetLastHardStateChange() + times->Get("end")) {
Log(LogNotice, "Notification", "Not sending notifications for notification object '" + GetName() + "': after escalation range");
return;
}
}
unsigned long ftype = 1 << type;
Log(LogDebug, "Notification", "FType=" + Convert::ToString(ftype) + ", TypeFilter=" + Convert::ToString(GetTypeFilter()));
if (!(ftype & GetTypeFilter())) {
Log(LogNotice, "Notification", "Not sending notifications for notification object '" + GetName() + "': type filter does not match");
return;
}
Host::Ptr host;
Service::Ptr service;
tie(host, service) = GetHostService(checkable);
unsigned long fstate;
if (service)
fstate = ServiceStateToFilter(service->GetState());
else
fstate = HostStateToFilter(host->GetState());
if (!(fstate & GetStateFilter())) {
Log(LogNotice, "Notification", "Not sending notifications for notification object '" + GetName() + "': state filter does not match");
return;
}
}
{
ObjectLock olock(this);
double now = Utility::GetTime();
SetLastNotification(now);
if (type == NotificationProblem)
SetLastProblemNotification(now);
}
std::set<User::Ptr> allUsers;
std::set<User::Ptr> users = GetUsers();
std::copy(users.begin(), users.end(), std::inserter(allUsers, allUsers.begin()));
BOOST_FOREACH(const UserGroup::Ptr& ug, GetUserGroups()) {
std::set<User::Ptr> members = ug->GetMembers();
std::copy(members.begin(), members.end(), std::inserter(allUsers, allUsers.begin()));
}
Service::OnNotificationSendStart(GetSelf(), checkable, allUsers, type, cr, author, text);
std::set<User::Ptr> allNotifiedUsers;
BOOST_FOREACH(const User::Ptr& user, allUsers) {
if (!user->GetEnableNotifications() || !CheckNotificationUserFilters(type, user, force))
continue;
Log(LogInformation, "Notification", "Sending notification for user '" + user->GetName() + "'");
Utility::QueueAsyncCallback(boost::bind(&Notification::ExecuteNotificationHelper, this, type, user, cr, force, author, text));
/* collect all notified users */
allNotifiedUsers.insert(user);
}
/* used in db_ido for notification history */
Service::OnNotificationSentToAllUsers(GetSelf(), checkable, allNotifiedUsers, type, cr, author, text);
}
bool Notification::CheckNotificationUserFilters(NotificationType type, const User::Ptr& user, bool force)
{
ASSERT(!OwnsLock());
if (!force) {
TimePeriod::Ptr tp = user->GetPeriod();
if (tp && !tp->IsInside(Utility::GetTime())) {
Log(LogNotice, "Notification", "Not sending notifications for notification object '" +
GetName() + " and user '" + user->GetName() + "': user not in timeperiod");
return false;
}
unsigned long ftype = 1 << type;
if (!(ftype & user->GetTypeFilter())) {
Log(LogNotice, "Notification", "Not sending notifications for notification object '" +
GetName() + " and user '" + user->GetName() + "': type filter does not match");
return false;
}
Checkable::Ptr checkable = GetCheckable();
Host::Ptr host;
Service::Ptr service;
tie(host, service) = GetHostService(checkable);
unsigned long fstate;
if (service)
fstate = ServiceStateToFilter(service->GetState());
else
fstate = HostStateToFilter(host->GetState());
if (!(fstate & user->GetStateFilter())) {
Log(LogNotice, "Notification", "Not sending notifications for notification object '" +
GetName() + " and user '" + user->GetName() + "': state filter does not match");
return false;
}
}
return true;
}
void Notification::ExecuteNotificationHelper(NotificationType type, const User::Ptr& user, const CheckResult::Ptr& cr, bool force, const String& author, const String& text)
{
ASSERT(!OwnsLock());
try {
NotificationCommand::Ptr command = GetCommand();
if (!command) {
Log(LogDebug, "Notification", "No notification_command found for notification '" + GetName() + "'. Skipping execution.");
return;
}
command->Execute(GetSelf(), user, cr, type, author, text);
{
ObjectLock olock(this);
UpdateNotificationNumber();
SetLastNotification(Utility::GetTime());
}
/* required by compatlogger */
Service::OnNotificationSentToUser(GetSelf(), GetCheckable(), user, type, cr, author, text, command->GetName());
Log(LogInformation, "Notification", "Completed sending notification for object '" + GetCheckable()->GetName() + "'");
} catch (const std::exception& ex) {
std::ostringstream msgbuf;
msgbuf << "Exception occured during notification for object '"
<< GetCheckable()->GetName() << "': " << DiagnosticInformation(ex);
Log(LogWarning, "Notification", msgbuf.str());
}
}
int icinga::ServiceStateToFilter(ServiceState state)
{
switch (state) {
case ServiceOK:
return StateFilterOK;
case ServiceWarning:
return StateFilterWarning;
case ServiceCritical:
return StateFilterCritical;
case ServiceUnknown:
return StateFilterUnknown;
default:
VERIFY(!"Invalid state type.");
}
}
int icinga::HostStateToFilter(HostState state)
{
switch (state) {
case HostUp:
return StateFilterUp;
case HostDown:
return StateFilterDown;
default:
VERIFY(!"Invalid state type.");
}
}
int icinga::FilterArrayToInt(const Array::Ptr& typeFilters, int defaultValue)
{
Value resultTypeFilter;
if (!typeFilters)
return defaultValue;
resultTypeFilter = 0;
ObjectLock olock(typeFilters);
BOOST_FOREACH(const Value& typeFilter, typeFilters) {
resultTypeFilter = resultTypeFilter | typeFilter;
}
return resultTypeFilter;
}
void Notification::ValidateFilters(const String& location, const Dictionary::Ptr& attrs)
{
int sfilter = FilterArrayToInt(attrs->Get("states"), 0);
if (!attrs->Contains("service_name") && (sfilter & ~(StateFilterUp | StateFilterDown)) != 0) {
ConfigCompilerContext::GetInstance()->AddMessage(true, "Validation failed for " +
location + ": State filter is invalid.");
}
if (attrs->Contains("service_name") && (sfilter & ~(StateFilterOK | StateFilterWarning | StateFilterCritical | StateFilterUnknown)) != 0) {
ConfigCompilerContext::GetInstance()->AddMessage(true, "Validation failed for " +
location + ": State filter is invalid.");
}
int tfilter = FilterArrayToInt(attrs->Get("types"), 0);
if ((tfilter & ~(1 << NotificationDowntimeStart | 1 << NotificationDowntimeEnd | 1 << NotificationDowntimeRemoved |
1 << NotificationCustom | 1 << NotificationAcknowledgement | 1 << NotificationProblem | 1 << NotificationRecovery |
1 << NotificationFlappingStart | 1 << NotificationFlappingEnd)) != 0) {
ConfigCompilerContext::GetInstance()->AddMessage(true, "Validation failed for " +
location + ": Type filter is invalid.");
}
}