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icinga2/components/compat/compatlog.cpp

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/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 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 "compat/compatlog.h"
#include "icinga/service.h"
#include "icinga/checkcommand.h"
#include "icinga/notification.h"
#include "icinga/macroprocessor.h"
#include "config/configcompilercontext.h"
#include "base/dynamictype.h"
#include "base/objectlock.h"
#include "base/logger_fwd.h"
#include "base/exception.h"
#include "base/convert.h"
#include "base/application.h"
#include "base/utility.h"
#include "base/scriptfunction.h"
#include <boost/smart_ptr/make_shared.hpp>
#include <boost/foreach.hpp>
#include <boost/algorithm/string.hpp>
using namespace icinga;
REGISTER_TYPE(CompatLog);
REGISTER_SCRIPTFUNCTION(ValidateRotationMethod, &CompatLog::ValidateRotationMethod);
CompatLog::CompatLog(void)
: m_LastRotation(0)
{ }
/**
* @threadsafety Always.
*/
void CompatLog::Start(void)
{
DynamicObject::Start();
Service::OnNewCheckResult.connect(bind(&CompatLog::CheckResultHandler, this, _1, _2));
// Service::OnDowntimeTriggered.connect(bind(&CompatLog::DowntimeHandler, this, _1));
Service::OnNotificationSentChanged.connect(bind(&CompatLog::NotificationSentHandler, this, _1, _2, _3, _4, _5, _6));
Service::OnFlappingChanged.connect(bind(&CompatLog::FlappingHandler, this, _1, _2));
m_RotationTimer = boost::make_shared<Timer>();
m_RotationTimer->OnTimerExpired.connect(boost::bind(&CompatLog::RotationTimerHandler, this));
m_RotationTimer->Start();
ReopenFile(false);
ScheduleNextRotation();
}
/**
* @threadsafety Always.
*/
String CompatLog::GetLogDir(void) const
{
if (!m_LogDir.IsEmpty())
return m_LogDir;
else
return Application::GetLocalStateDir() + "/log/icinga2/compat";
}
/**
* @threadsafety Always.
*/
String CompatLog::GetRotationMethod(void) const
{
if (!m_RotationMethod.IsEmpty())
return m_RotationMethod;
else
return "HOURLY";
}
/**
* @threadsafety Always.
*/
void CompatLog::CheckResultHandler(const Service::Ptr& service, const Dictionary::Ptr &cr)
{
Host::Ptr host = service->GetHost();
if (!host)
return;
Dictionary::Ptr vars_after = cr->Get("vars_after");
long state_after = vars_after->Get("state");
long stateType_after = vars_after->Get("state_type");
long attempt_after = vars_after->Get("attempt");
bool reachable_after = vars_after->Get("reachable");
bool host_reachable_after = vars_after->Get("host_reachable");
Dictionary::Ptr vars_before = cr->Get("vars_before");
if (vars_before) {
long state_before = vars_before->Get("state");
long stateType_before = vars_before->Get("state_type");
long attempt_before = vars_before->Get("attempt");
bool reachable_before = vars_before->Get("reachable");
if (state_before == state_after && stateType_before == stateType_after &&
attempt_before == attempt_after && reachable_before == reachable_after)
return; /* Nothing changed, ignore this checkresult. */
}
String raw_output;
String output;
if (cr) {
raw_output = cr->Get("output");
size_t line_end = raw_output.Find("\n");
output = raw_output.SubStr(0, line_end);
boost::algorithm::replace_all(output, "\n", "\\n");
}
std::ostringstream msgbuf;
msgbuf << "SERVICE ALERT: "
<< host->GetName() << ";"
<< service->GetShortName() << ";"
<< Service::StateToString(static_cast<ServiceState>(state_after)) << ";"
<< Service::StateTypeToString(static_cast<StateType>(stateType_after)) << ";"
<< attempt_after << ";"
<< output << ""
<< "";
{
ObjectLock olock(this);
WriteLine(msgbuf.str());
}
if (service == host->GetHostCheckService()) {
std::ostringstream msgbuf;
msgbuf << "HOST ALERT: "
<< host->GetName() << ";"
<< Host::StateToString(Host::CalculateState(static_cast<ServiceState>(state_after), host_reachable_after)) << ";"
<< Service::StateTypeToString(static_cast<StateType>(stateType_after)) << ";"
<< attempt_after << ";"
<< output << ""
<< "";
{
ObjectLock olock(this);
WriteLine(msgbuf.str());
}
}
{
ObjectLock olock(this);
Flush();
}
}
///**
// * @threadsafety Always.
// */
//void CompatLog::DowntimeHandler(const Service::Ptr& service)
//{
// Host::Ptr host = service->GetHost();
//
// if (!host)
// return;
//
// String downtime_state_str;
// String downtime_output;
//
// switch (downtime_state) {
// case DowntimeStarted:
// downtime_output = "Service has entered a period of scheduled downtime.";
// downtime_state_str = "STARTED";
// break;
// case DowntimeStopped:
// downtime_output = "Service has exited from a period of scheduled downtime.";
// downtime_state_str = "STOPPED";
// break;
// case DowntimeCancelled:
// downtime_output = "Scheduled downtime for service has been cancelled.";
// downtime_state_str = "CANCELLED";
// break;
// default:
// Log(LogCritical, "compat", "Unknown downtime state: " + Convert::ToString(downtime_state));
// return;
// }
//
// std::ostringstream msgbuf;
// msgbuf << "SERVICE DOWNTIME ALERT: "
// << host->GetName() << ";"
// << service->GetShortName() << ";"
// << downtime_state_str << "; "
// << downtime_output
// << "";
//
// {
// ObjectLock oLock(this);
// WriteLine(msgbuf.str());
// }
//
// if (service == host->GetHostCheckService()) {
// std::ostringstream msgbuf;
// msgbuf << "HOST DOWNTIME ALERT: "
// << host->GetName() << ";"
// << downtime_state_str << "; "
// << downtime_output
// << "";
//
// {
// ObjectLock oLock(this);
// WriteLine(msgbuf.str());
// }
// }
//
// {
// ObjectLock oLock(this);
// Flush();
// }
//}
/**
* @threadsafety Always.
*/
void CompatLog::NotificationSentHandler(const Service::Ptr& service, const User::Ptr& user,
NotificationType const& notification_type, Dictionary::Ptr const& cr,
const String& author, const String& comment_text)
{
Host::Ptr host = service->GetHost();
if (!host)
return;
CheckCommand::Ptr commandObj = service->GetCheckCommand();
String check_command = "";
if (commandObj)
check_command = commandObj->GetName();
String notification_type_str = Notification::NotificationTypeToString(notification_type);
String author_comment = "";
if (notification_type == NotificationCustom || notification_type == NotificationAcknowledgement) {
author_comment = ";" + author + ";" + comment_text;
}
if (!cr)
return;
String output;
String raw_output;
if (cr) {
raw_output = cr->Get("output");
size_t line_end = raw_output.Find("\n");
output = raw_output.SubStr(0, line_end);
}
std::ostringstream msgbuf;
msgbuf << "SERVICE NOTIFICATION: "
<< user->GetName() << ";"
<< host->GetName() << ";"
<< service->GetShortName() << ";"
<< notification_type_str << " "
<< "(" << Service::StateToString(service->GetState()) << ");"
<< check_command << ";"
<< raw_output << author_comment
<< "";
{
ObjectLock oLock(this);
WriteLine(msgbuf.str());
}
if (service == host->GetHostCheckService()) {
std::ostringstream msgbuf;
msgbuf << "HOST NOTIFICATION: "
<< user->GetName() << ";"
<< host->GetName() << ";"
<< notification_type_str << " "
<< "(" << Service::StateToString(service->GetState()) << ");"
<< check_command << ";"
<< raw_output << author_comment
<< "";
{
ObjectLock oLock(this);
WriteLine(msgbuf.str());
}
}
{
ObjectLock oLock(this);
Flush();
}
}
/**
* @threadsafety Always.
*/
void CompatLog::FlappingHandler(const Service::Ptr& service, FlappingState flapping_state)
{
Host::Ptr host = service->GetHost();
if (!host)
return;
String flapping_state_str;
String flapping_output;
switch (flapping_state) {
case FlappingStarted:
flapping_output = "Service appears to have started flapping (" + Convert::ToString(service->GetFlappingCurrent()) + "% change >= " + Convert::ToString(service->GetFlappingThreshold()) + "% threshold)";
flapping_state_str = "STARTED";
break;
case FlappingStopped:
flapping_output = "Service appears to have stopped flapping (" + Convert::ToString(service->GetFlappingCurrent()) + "% change < " + Convert::ToString(service->GetFlappingThreshold()) + "% threshold)";
flapping_state_str = "STOPPED";
break;
case FlappingDisabled:
flapping_output = "Flap detection has been disabled";
flapping_state_str = "DISABLED";
break;
default:
Log(LogCritical, "compat", "Unknown flapping state: " + Convert::ToString(flapping_state));
return;
}
std::ostringstream msgbuf;
msgbuf << "SERVICE FLAPPING ALERT: "
<< host->GetName() << ";"
<< service->GetShortName() << ";"
<< flapping_state_str << "; "
<< flapping_output
<< "";
{
ObjectLock oLock(this);
WriteLine(msgbuf.str());
}
if (service == host->GetHostCheckService()) {
std::ostringstream msgbuf;
msgbuf << "HOST FLAPPING ALERT: "
<< host->GetName() << ";"
<< flapping_state_str << "; "
<< flapping_output
<< "";
{
ObjectLock oLock(this);
WriteLine(msgbuf.str());
}
}
{
ObjectLock oLock(this);
Flush();
}
}
void CompatLog::WriteLine(const String& line)
{
ASSERT(OwnsLock());
if (!m_OutputFile.good())
return;
m_OutputFile << "[" << (long)Utility::GetTime() << "] " << line << "\n";
}
void CompatLog::Flush(void)
{
ASSERT(OwnsLock());
if (!m_OutputFile.good())
return;
m_OutputFile << std::flush;
}
/**
* @threadsafety Always.
*/
void CompatLog::ReopenFile(bool rotate)
{
ObjectLock olock(this);
String tempFile = GetLogDir() + "/icinga.log";
if (m_OutputFile) {
m_OutputFile.close();
if (rotate) {
String archiveFile = GetLogDir() + "/archives/icinga-" + Utility::FormatDateTime("%m-%d-%Y-%H", Utility::GetTime()) + ".log";
Log(LogInformation, "compat", "Rotating compat log file '" + tempFile + "' -> '" + archiveFile + "'");
(void) rename(tempFile.CStr(), archiveFile.CStr());
}
}
m_OutputFile.open(tempFile.CStr(), std::ofstream::app);
if (!m_OutputFile.good()) {
Log(LogWarning, "icinga", "Could not open compat log file '" + tempFile + "' for writing. Log output will be lost.");
return;
}
WriteLine("LOG ROTATION: " + GetRotationMethod());
WriteLine("LOG VERSION: 2.0");
BOOST_FOREACH(const Host::Ptr& host, DynamicType::GetObjects<Host>()) {
Service::Ptr hc = host->GetHostCheckService();
if (!hc)
continue;
bool reachable = host->IsReachable();
ObjectLock olock(hc);
std::ostringstream msgbuf;
msgbuf << "HOST STATE: CURRENT;"
<< host->GetName() << ";"
<< Host::StateToString(Host::CalculateState(hc->GetState(), reachable)) << ";"
<< Service::StateTypeToString(hc->GetStateType()) << ";"
<< hc->GetCurrentCheckAttempt() << ";"
<< "";
WriteLine(msgbuf.str());
}
BOOST_FOREACH(const Service::Ptr& service, DynamicType::GetObjects<Service>()) {
Host::Ptr host = service->GetHost();
if (!host)
continue;
std::ostringstream msgbuf;
msgbuf << "SERVICE STATE: CURRENT;"
<< host->GetName() << ";"
<< service->GetShortName() << ";"
<< Service::StateToString(service->GetState()) << ";"
<< Service::StateTypeToString(service->GetStateType()) << ";"
<< service->GetCurrentCheckAttempt() << ";"
<< "";
WriteLine(msgbuf.str());
}
Flush();
}
void CompatLog::ScheduleNextRotation(void)
{
time_t now = (time_t)Utility::GetTime();
String method = GetRotationMethod();
tm tmthen;
#ifdef _MSC_VER
tm *temp = localtime(&now);
if (temp == NULL) {
BOOST_THROW_EXCEPTION(posix_error()
<< boost::errinfo_api_function("localtime")
<< boost::errinfo_errno(errno));
}
tmthen = *temp;
#else /* _MSC_VER */
if (localtime_r(&now, &tmthen) == NULL) {
BOOST_THROW_EXCEPTION(posix_error()
<< boost::errinfo_api_function("localtime_r")
<< boost::errinfo_errno(errno));
}
#endif /* _MSC_VER */
tmthen.tm_min = 0;
tmthen.tm_sec = 0;
if (method == "HOURLY") {
tmthen.tm_hour++;
} else if (method == "DAILY") {
tmthen.tm_mday++;
tmthen.tm_hour = 0;
} else if (method == "WEEKLY") {
tmthen.tm_mday += 7 - tmthen.tm_wday;
tmthen.tm_hour = 0;
} else if (method == "MONTHLY") {
tmthen.tm_mon++;
tmthen.tm_mday = 1;
tmthen.tm_hour = 0;
}
time_t ts = mktime(&tmthen);
Log(LogInformation, "compat", "Rescheduling rotation timer for compat log '"
+ GetName() + "' to '" + Utility::FormatDateTime("%Y/%m/%d %H:%M:%S %z", ts) + "'");
m_RotationTimer->Reschedule(ts);
}
/**
* @threadsafety Always.
*/
void CompatLog::RotationTimerHandler(void)
{
try {
ReopenFile(true);
} catch (...) {
ScheduleNextRotation();
throw;
}
ScheduleNextRotation();
}
void CompatLog::ValidateRotationMethod(const String& location, const Dictionary::Ptr& attrs)
{
Value rotation_method = attrs->Get("rotation_method");
if (!rotation_method.IsEmpty() && rotation_method != "HOURLY" && rotation_method != "DAILY" &&
rotation_method != "WEEKLY" && rotation_method != "MONTHLY" && rotation_method != "NONE") {
ConfigCompilerContext::GetInstance()->AddError(false, "Validation failed for " +
location + ": Rotation method '" + rotation_method + "' is invalid.");
}
}
void CompatLog::InternalSerialize(const Dictionary::Ptr& bag, int attributeTypes) const
{
DynamicObject::InternalSerialize(bag, attributeTypes);
if (attributeTypes & Attribute_Config) {
bag->Set("log_dir", m_LogDir);
bag->Set("rotation_method", m_RotationMethod);
}
}
void CompatLog::InternalDeserialize(const Dictionary::Ptr& bag, int attributeTypes)
{
DynamicObject::InternalDeserialize(bag, attributeTypes);
if (attributeTypes & Attribute_Config) {
m_LogDir = bag->Get("log_dir");
m_RotationMethod = bag->Get("rotation_method");
}
}
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