icinga2/components/compat/compatcomponent.cpp

562 lines
19 KiB
C++

/******************************************************************************
* 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 "i2-compat.h"
using namespace icinga;
EXPORT_COMPONENT(compat, CompatComponent);
/**
* Hint: The reason why we're using "\n" rather than std::endl is because
* std::endl also _flushes_ the output stream which severely degrades
* performance (see http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch25s02.html).
*/
/**
* Retrieves the status.dat path.
*
* @returns statuspath from config, or static default
*/
String CompatComponent::GetStatusPath(void) const
{
Value statusPath = GetConfig()->Get("status_path");
if (statusPath.IsEmpty())
return Application::GetLocalStateDir() + "/cache/icinga2/status.dat";
else
return statusPath;
}
/**
* Retrieves the objects.cache path.
*
* @returns objectspath from config, or static default
*/
String CompatComponent::GetObjectsPath(void) const
{
Value objectsPath = GetConfig()->Get("objects_path");
if (objectsPath.IsEmpty())
return Application::GetLocalStateDir() + "/cache/icinga2/objects.cache";
else
return objectsPath;
}
/**
* Retrieves the log path.
*
* @returns log path
*/
String CompatComponent::GetLogPath(void) const
{
Value logPath = GetConfig()->Get("log_path");
if (logPath.IsEmpty())
return Application::GetLocalStateDir() + "/log/icinga2/compat";
else
return logPath;
}
/**
* Retrieves the icinga.cmd path.
*
* @returns icinga.cmd path
*/
String CompatComponent::GetCommandPath(void) const
{
Value commandPath = GetConfig()->Get("command_path");
if (commandPath.IsEmpty())
return Application::GetLocalStateDir() + "/run/icinga.cmd";
else
return commandPath;
}
/**
* Starts the component.
*/
void CompatComponent::Start(void)
{
m_StatusTimer = boost::make_shared<Timer>();
m_StatusTimer->SetInterval(5);
m_StatusTimer->OnTimerExpired.connect(boost::bind(&CompatComponent::StatusTimerHandler, this));
m_StatusTimer->Start();
m_StatusTimer->Reschedule(0);
#ifndef _WIN32
m_CommandThread = thread(boost::bind(&CompatComponent::CommandPipeThread, this, GetCommandPath()));
m_CommandThread.detach();
#endif /* _WIN32 */
}
/**
* Stops the component.
*/
void CompatComponent::Stop(void)
{
}
#ifndef _WIN32
void CompatComponent::CommandPipeThread(const String& commandPath)
{
struct stat statbuf;
bool fifo_ok = false;
if (lstat(commandPath.CStr(), &statbuf) >= 0) {
if (S_ISFIFO(statbuf.st_mode) && access(commandPath.CStr(), R_OK) >= 0) {
fifo_ok = true;
} else {
if (unlink(commandPath.CStr()) < 0)
BOOST_THROW_EXCEPTION(PosixException("unlink() failed", errno));
}
}
if (!fifo_ok && mkfifo(commandPath.CStr(), S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP) < 0)
BOOST_THROW_EXCEPTION(PosixException("mkfifo() failed", errno));
for (;;) {
int fd;
do {
fd = open(commandPath.CStr(), O_RDONLY);
} while (fd < 0 && errno == EINTR);
if (fd < 0)
BOOST_THROW_EXCEPTION(PosixException("open() failed", errno));
FILE *fp = fdopen(fd, "r");
if (fp == NULL) {
close(fd);
BOOST_THROW_EXCEPTION(PosixException("fdopen() failed", errno));
}
char line[2048];
while (fgets(line, sizeof(line), fp) != NULL) {
// remove trailing new-line
while (strlen(line) > 0 &&
(line[strlen(line) - 1] == '\r' || line[strlen(line) - 1] == '\n'))
line[strlen(line) - 1] = '\0';
String command = line;
ProcessCommand(command);
}
fclose(fp);
}
}
void CompatComponent::ProcessCommand(const String& command)
{
try {
Logger::Write(LogInformation, "compat", "Executing external command: " + command);
ExternalCommandProcessor::Execute(command);
} catch (const exception& ex) {
stringstream msgbuf;
msgbuf << "External command failed: " << diagnostic_information(ex);
Logger::Write(LogWarning, "compat", msgbuf.str());
}
}
#endif /* _WIN32 */
void CompatComponent::DumpComments(ofstream& fp, const Service::Ptr& owner, CompatObjectType type)
{
ObjectLock olock(owner);
Service::Ptr service;
Host::Ptr host;
Dictionary::Ptr comments = owner->GetComments();
if (!comments)
return;
String id;
Dictionary::Ptr comment;
BOOST_FOREACH(tie(id, comment), comments) {
if (Service::IsCommentExpired(comment))
continue;
if (type == CompatTypeHost)
fp << "hostcomment {" << "\n";
else
fp << "servicecomment {" << "\n"
<< "\t" << "service_description=" << owner->GetShortName() << "\n";
fp << "\t" << "host_name=" << owner->GetHost()->GetName() << "\n"
<< "\t" << "comment_id=" << static_cast<String>(comment->Get("legacy_id")) << "\n"
<< "\t" << "entry_time=" << static_cast<double>(comment->Get("entry_time")) << "\n"
<< "\t" << "entry_type=" << static_cast<long>(comment->Get("entry_type")) << "\n"
<< "\t" << "persistent=" << 1 << "\n"
<< "\t" << "author=" << static_cast<String>(comment->Get("author")) << "\n"
<< "\t" << "comment_data=" << static_cast<String>(comment->Get("text")) << "\n"
<< "\t" << "expires=" << (static_cast<double>(comment->Get("expire_time")) != 0 ? 1 : 0) << "\n"
<< "\t" << "expire_time=" << static_cast<double>(comment->Get("expire_time")) << "\n"
<< "\t" << "}" << "\n"
<< "\n";
}
}
void CompatComponent::DumpDowntimes(ofstream& fp, const Service::Ptr& owner, CompatObjectType type)
{
ObjectLock olock(owner);
Dictionary::Ptr downtimes = owner->GetDowntimes();
if (!downtimes)
return;
String id;
Dictionary::Ptr downtime;
BOOST_FOREACH(tie(id, downtime), downtimes) {
if (Service::IsDowntimeExpired(downtime))
continue;
if (type == CompatTypeHost)
fp << "hostdowntime {" << "\n";
else
fp << "servicedowntime {" << "\n"
<< "\t" << "service_description=" << owner->GetShortName() << "\n";
Dictionary::Ptr triggeredByObj = Service::GetDowntimeByID(downtime->Get("triggered_by"));
int triggeredByLegacy = 0;
if (triggeredByObj)
triggeredByLegacy = triggeredByObj->Get("legacy_id");
fp << "\t" << "host_name=" << owner->GetHost()->GetName() << "\n"
<< "\t" << "downtime_id=" << static_cast<String>(downtime->Get("legacy_id")) << "\n"
<< "\t" << "entry_time=" << static_cast<double>(downtime->Get("entry_time")) << "\n"
<< "\t" << "start_time=" << static_cast<double>(downtime->Get("start_time")) << "\n"
<< "\t" << "end_time=" << static_cast<double>(downtime->Get("end_time")) << "\n"
<< "\t" << "triggered_by=" << triggeredByLegacy << "\n"
<< "\t" << "fixed=" << static_cast<long>(downtime->Get("fixed")) << "\n"
<< "\t" << "duration=" << static_cast<long>(downtime->Get("duration")) << "\n"
<< "\t" << "is_in_effect=" << (Service::IsDowntimeActive(downtime) ? 1 : 0) << "\n"
<< "\t" << "author=" << static_cast<String>(downtime->Get("author")) << "\n"
<< "\t" << "comment=" << static_cast<String>(downtime->Get("comment")) << "\n"
<< "\t" << "trigger_time=" << static_cast<double>(downtime->Get("trigger_time")) << "\n"
<< "\t" << "}" << "\n"
<< "\n";
}
}
void CompatComponent::DumpHostStatus(ofstream& fp, const Host::Ptr& host)
{
ObjectLock olock(host);
int state;
if (!host->IsReachable())
state = 2; /* unreachable */
else if (!host->IsUp())
state = 1; /* down */
else
state = 0; /* up */
fp << "hoststatus {" << "\n"
<< "\t" << "host_name=" << host->GetName() << "\n";
Service::Ptr hostcheck = host->GetHostCheckService();
if (hostcheck) {
DumpServiceStatusAttrs(fp, hostcheck, CompatTypeHost);
}
fp << "\t" << "}" << "\n"
<< "\n";
if (hostcheck) {
DumpDowntimes(fp, hostcheck, CompatTypeHost);
DumpComments(fp, hostcheck, CompatTypeHost);
}
}
void CompatComponent::DumpHostObject(ofstream& fp, const Host::Ptr& host)
{
ObjectLock olock(host);
fp << "define host {" << "\n"
<< "\t" << "host_name" << "\t" << host->GetName() << "\n"
<< "\t" << "display_name" << "\t" << host->GetDisplayName() << "\n"
<< "\t" << "check_interval" << "\t" << 1 << "\n"
<< "\t" << "retry_interval" << "\t" << 1 << "\n"
<< "\t" << "max_check_attempts" << "\t" << 1 << "\n"
<< "\t" << "active_checks_enabled" << "\t" << 1 << "\n"
<< "\t" << "passive_checks_enabled" << "\t" << 1 << "\n";
set<Host::Ptr> parents = host->GetParentHosts();
if (!parents.empty()) {
fp << "\t" << "parents" << "\t";
DumpNameList(fp, parents);
fp << "\n";
}
fp << "\t" << "}" << "\n"
<< "\n";
}
void CompatComponent::DumpServiceStatusAttrs(ofstream& fp, const Service::Ptr& service, CompatObjectType type)
{
ObjectLock olock(service);
String output;
String perfdata;
double schedule_start = -1, schedule_end = -1;
double execution_start = -1, execution_end = -1;
Dictionary::Ptr cr = service->GetLastCheckResult();
if (cr) {
output = cr->Get("output");
schedule_start = cr->Get("schedule_start");
schedule_end = cr->Get("schedule_end");
execution_start = cr->Get("execution_start");
execution_end = cr->Get("execution_end");
perfdata = cr->Get("performance_data_raw");
}
double execution_time = (execution_end - execution_start);
double latency = (schedule_end - schedule_start) - execution_time;
int state = service->GetState();
if (state > StateUnknown)
state = StateUnknown;
if (type == CompatTypeHost) {
if (state == StateOK || state == StateWarning)
state = 0;
else
state = 1;
if (!service->GetHost()->IsReachable())
state = 2;
}
fp << "\t" << "check_interval=" << service->GetCheckInterval() / 60.0 << "\n"
<< "\t" << "retry_interval=" << service->GetRetryInterval() / 60.0 << "\n"
<< "\t" << "has_been_checked=" << (service->GetLastCheckResult() ? 1 : 0) << "\n"
<< "\t" << "should_be_scheduled=1" << "\n"
<< "\t" << "check_execution_time=" << execution_time << "\n"
<< "\t" << "check_latency=" << latency << "\n"
<< "\t" << "current_state=" << state << "\n"
<< "\t" << "state_type=" << service->GetStateType() << "\n"
<< "\t" << "plugin_output=" << output << "\n"
<< "\t" << "performance_data=" << perfdata << "\n"
<< "\t" << "last_check=" << schedule_end << "\n"
<< "\t" << "next_check=" << service->GetNextCheck() << "\n"
<< "\t" << "current_attempt=" << service->GetCurrentCheckAttempt() << "\n"
<< "\t" << "max_attempts=" << service->GetMaxCheckAttempts() << "\n"
<< "\t" << "last_state_change=" << service->GetLastStateChange() << "\n"
<< "\t" << "last_hard_state_change=" << service->GetLastHardStateChange() << "\n"
<< "\t" << "last_update=" << time(NULL) << "\n"
<< "\t" << "active_checks_enabled=" << (service->GetEnableActiveChecks() ? 1 : 0) <<"\n"
<< "\t" << "passive_checks_enabled=" << (service->GetEnablePassiveChecks() ? 1 : 0) << "\n"
<< "\t" << "problem_has_been_acknowledged=" << (service->GetAcknowledgement() != AcknowledgementNone ? 1 : 0) << "\n"
<< "\t" << "acknowledgement_type=" << static_cast<int>(service->GetAcknowledgement()) << "\n"
<< "\t" << "acknowledgement_end_time=" << service->GetAcknowledgementExpiry() << "\n"
<< "\t" << "scheduled_downtime_depth=" << (service->IsInDowntime() ? 1 : 0) << "\n"
<< "\t" << "last_notification=" << service->GetLastNotification() << "\n"
<< "\t" << "next_notification=" << service->GetNextNotification() << "\n";
}
void CompatComponent::DumpServiceStatus(ofstream& fp, const Service::Ptr& service)
{
ObjectLock olock(service);
fp << "servicestatus {" << "\n"
<< "\t" << "host_name=" << service->GetHost()->GetName() << "\n"
<< "\t" << "service_description=" << service->GetShortName() << "\n";
DumpServiceStatusAttrs(fp, service, CompatTypeService);
fp << "\t" << "}" << "\n"
<< "\n";
DumpDowntimes(fp, service, CompatTypeService);
DumpComments(fp, service, CompatTypeService);
}
void CompatComponent::DumpServiceObject(ofstream& fp, const Service::Ptr& service)
{
ObjectLock olock(service);
fp << "define service {" << "\n"
<< "\t" << "host_name" << "\t" << service->GetHost()->GetName() << "\n"
<< "\t" << "service_description" << "\t" << service->GetShortName() << "\n"
<< "\t" << "display_name" << "\t" << service->GetDisplayName() << "\n"
<< "\t" << "check_command" << "\t" << "check_i2" << "\n"
<< "\t" << "check_interval" << "\t" << service->GetCheckInterval() / 60.0 << "\n"
<< "\t" << "retry_interval" << "\t" << service->GetRetryInterval() / 60.0 << "\n"
<< "\t" << "max_check_attempts" << "\t" << 1 << "\n"
<< "\t" << "active_checks_enabled" << "\t" << (service->GetEnableActiveChecks() ? 1 : 0) << "\n"
<< "\t" << "passive_checks_enabled" << "\t" << (service->GetEnablePassiveChecks() ? 1 : 0) << "\n"
<< "\t" << "}" << "\n"
<< "\n";
BOOST_FOREACH(const Service::Ptr& parent, service->GetParentServices()) {
ObjectLock plock(parent);
fp << "define servicedependency {" << "\n"
<< "\t" << "dependent_host_name" << "\t" << service->GetHost()->GetName() << "\n"
<< "\t" << "dependent_service_description" << "\t" << service->GetShortName() << "\n"
<< "\t" << "host_name" << "\t" << parent->GetHost()->GetName() << "\n"
<< "\t" << "service_description" << "\t" << parent->GetShortName() << "\n"
<< "\t" << "execution_failure_criteria" << "\t" << "n" << "\n"
<< "\t" << "notification_failure_criteria" << "\t" << "w,u,c" << "\n"
<< "\t" << "}" << "\n"
<< "\n";
}
}
/**
* Periodically writes the status.dat and objects.cache files.
*/
void CompatComponent::StatusTimerHandler(void)
{
Logger::Write(LogInformation, "compat", "Writing compat status information");
String statuspath = GetStatusPath();
String objectspath = GetObjectsPath();
String statuspathtmp = statuspath + ".tmp"; /* XXX make this a global definition */
String objectspathtmp = objectspath + ".tmp";
ofstream statusfp;
statusfp.open(statuspathtmp.CStr(), ofstream::out | ofstream::trunc);
statusfp << std::fixed;
statusfp << "# Icinga status file" << "\n"
<< "# This file is auto-generated. Do not modify this file." << "\n"
<< "\n";
statusfp << "info {" << "\n"
<< "\t" << "created=" << Utility::GetTime() << "\n"
<< "\t" << "version=2.0" << "\n"
<< "\t" << "}" << "\n"
<< "\n";
double startTime;
{
IcingaApplication::Ptr app = IcingaApplication::GetInstance();
ObjectLock olock(app);
startTime = app->GetStartTime();
}
statusfp << "programstatus {" << "\n"
<< "icinga_pid=" << Utility::GetPid() << "\n"
<< "\t" << "daemon_mode=1" << "\n"
<< "\t" << "program_start=" << startTime << "\n"
<< "\t" << "active_service_checks_enabled=1" << "\n"
<< "\t" << "passive_service_checks_enabled=1" << "\n"
<< "\t" << "active_host_checks_enabled=0" << "\n"
<< "\t" << "passive_host_checks_enabled=0" << "\n"
<< "\t" << "check_service_freshness=0" << "\n"
<< "\t" << "check_host_freshness=0" << "\n"
<< "\t" << "enable_flap_detection=1" << "\n"
<< "\t" << "enable_failure_prediction=0" << "\n"
<< "\t" << "active_scheduled_service_check_stats=" << CIB::GetActiveChecksStatistics(60) << "," << CIB::GetActiveChecksStatistics(5 * 60) << "," << CIB::GetActiveChecksStatistics(15 * 60) << "\n"
<< "\t" << "passive_service_check_stats=" << CIB::GetPassiveChecksStatistics(60) << "," << CIB::GetPassiveChecksStatistics(5 * 60) << "," << CIB::GetPassiveChecksStatistics(15 * 60) << "\n"
<< "\t" << "next_downtime_id=" << Service::GetNextDowntimeID() << "\n"
<< "\t" << "next_comment_id=" << Service::GetNextCommentID() << "\n"
<< "\t" << "}" << "\n"
<< "\n";
ofstream objectfp;
objectfp.open(objectspathtmp.CStr(), ofstream::out | ofstream::trunc);
objectfp << std::fixed;
objectfp << "# Icinga objects cache file" << "\n"
<< "# This file is auto-generated. Do not modify this file." << "\n"
<< "\n";
BOOST_FOREACH(const DynamicObject::Ptr& object, DynamicType::GetObjects("Host")) {
Host::Ptr host = static_pointer_cast<Host>(object);
DumpHostStatus(statusfp, host);
DumpHostObject(objectfp, host);
}
BOOST_FOREACH(const DynamicObject::Ptr& object, DynamicType::GetObjects("HostGroup")) {
HostGroup::Ptr hg = static_pointer_cast<HostGroup>(object);
ObjectLock olock(hg);
objectfp << "define hostgroup {" << "\n"
<< "\t" << "hostgroup_name" << "\t" << hg->GetName() << "\n"
<< "\t" << "notes_url" << "\t" << hg->GetNotesUrl() << "\n"
<< "\t" << "action_url" << "\t" << hg->GetActionUrl() << "\n";
objectfp << "\t" << "members" << "\t";
DumpNameList(objectfp, hg->GetMembers());
objectfp << "\n"
<< "}" << "\n";
}
BOOST_FOREACH(const DynamicObject::Ptr& object, DynamicType::GetObjects("Service")) {
Service::Ptr service = static_pointer_cast<Service>(object);
DumpServiceStatus(statusfp, service);
DumpServiceObject(objectfp, service);
}
BOOST_FOREACH(const DynamicObject::Ptr& object, DynamicType::GetObjects("ServiceGroup")) {
ServiceGroup::Ptr sg = static_pointer_cast<ServiceGroup>(object);
ObjectLock olock(sg);
objectfp << "define servicegroup {" << "\n"
<< "\t" << "servicegroup_name" << "\t" << sg->GetName() << "\n"
<< "\t" << "notes_url" << "\t" << sg->GetNotesUrl() << "\n"
<< "\t" << "action_url" << "\t" << sg->GetActionUrl() << "\n";
objectfp << "\t" << "members" << "\t";
vector<String> sglist;
BOOST_FOREACH(const Service::Ptr& service, sg->GetMembers()) {
ObjectLock slock(service);
Host::Ptr host = service->GetHost();
ObjectLock hlock(host);
sglist.push_back(host->GetName());
sglist.push_back(service->GetShortName());
}
DumpStringList(objectfp, sglist);
objectfp << "\n"
<< "}" << "\n";
}
statusfp.close();
objectfp.close();
#ifdef _WIN32
_unlink(statuspath.CStr());
_unlink(objectspath.CStr());
#endif /* _WIN32 */
statusfp.close();
if (rename(statuspathtmp.CStr(), statuspath.CStr()) < 0)
BOOST_THROW_EXCEPTION(PosixException("rename() failed", errno));
objectfp.close();
if (rename(objectspathtmp.CStr(), objectspath.CStr()) < 0)
BOOST_THROW_EXCEPTION(PosixException("rename() failed", errno));
}