icinga2/lib/icinga/clusterevents.cpp

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/******************************************************************************
* Icinga 2 *
2016-01-12 08:29:59 +01:00
* Copyright (C) 2012-2016 Icinga Development Team (https://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/clusterevents.hpp"
#include "icinga/service.hpp"
#include "icinga/perfdatavalue.hpp"
#include "remote/apilistener.hpp"
#include "remote/endpoint.hpp"
#include "remote/messageorigin.hpp"
#include "remote/zone.hpp"
#include "remote/apifunction.hpp"
#include "remote/eventqueue.hpp"
#include "base/application.hpp"
#include "base/configtype.hpp"
#include "base/utility.hpp"
#include "base/exception.hpp"
#include "base/initialize.hpp"
#include "base/serializer.hpp"
#include "base/json.hpp"
#include <fstream>
using namespace icinga;
INITIALIZE_ONCE(&ClusterEvents::StaticInitialize);
REGISTER_APIFUNCTION(CheckResult, event, &ClusterEvents::CheckResultAPIHandler);
REGISTER_APIFUNCTION(SetNextCheck, event, &ClusterEvents::NextCheckChangedAPIHandler);
REGISTER_APIFUNCTION(SetNextNotification, event, &ClusterEvents::NextNotificationChangedAPIHandler);
REGISTER_APIFUNCTION(SetForceNextCheck, event, &ClusterEvents::ForceNextCheckChangedAPIHandler);
REGISTER_APIFUNCTION(SetForceNextNotification, event, &ClusterEvents::ForceNextNotificationChangedAPIHandler);
REGISTER_APIFUNCTION(SetAcknowledgement, event, &ClusterEvents::AcknowledgementSetAPIHandler);
REGISTER_APIFUNCTION(ClearAcknowledgement, event, &ClusterEvents::AcknowledgementClearedAPIHandler);
REGISTER_APIFUNCTION(UpdateRepository, event, &ClusterEvents::UpdateRepositoryAPIHandler);
REGISTER_APIFUNCTION(ExecuteCommand, event, &ClusterEvents::ExecuteCommandAPIHandler);
static Timer::Ptr l_RepositoryTimer;
void ClusterEvents::StaticInitialize(void)
{
Checkable::OnNewCheckResult.connect(&ClusterEvents::CheckResultHandler);
Checkable::OnNextCheckChanged.connect(&ClusterEvents::NextCheckChangedHandler);
Notification::OnNextNotificationChanged.connect(&ClusterEvents::NextNotificationChangedHandler);
Checkable::OnForceNextCheckChanged.connect(&ClusterEvents::ForceNextCheckChangedHandler);
Checkable::OnForceNextNotificationChanged.connect(&ClusterEvents::ForceNextNotificationChangedHandler);
Checkable::OnAcknowledgementSet.connect(&ClusterEvents::AcknowledgementSetHandler);
Checkable::OnAcknowledgementCleared.connect(&ClusterEvents::AcknowledgementClearedHandler);
l_RepositoryTimer = new Timer();
l_RepositoryTimer->SetInterval(30);
l_RepositoryTimer->OnTimerExpired.connect(boost::bind(&ClusterEvents::RepositoryTimerHandler));
l_RepositoryTimer->Start();
l_RepositoryTimer->Reschedule(0);
}
Dictionary::Ptr ClusterEvents::MakeCheckResultMessage(const Checkable::Ptr& checkable, const CheckResult::Ptr& cr)
{
Dictionary::Ptr message = new Dictionary();
message->Set("jsonrpc", "2.0");
message->Set("method", "event::CheckResult");
Host::Ptr host;
Service::Ptr service;
tie(host, service) = GetHostService(checkable);
Dictionary::Ptr params = new Dictionary();
params->Set("host", host->GetName());
if (service)
params->Set("service", service->GetShortName());
else {
Value agent_service_name = checkable->GetExtension("agent_service_name");
if (!agent_service_name.IsEmpty())
params->Set("service", agent_service_name);
}
params->Set("cr", Serialize(cr));
message->Set("params", params);
return message;
}
void ClusterEvents::CheckResultHandler(const Checkable::Ptr& checkable, const CheckResult::Ptr& cr, const MessageOrigin::Ptr& origin)
{
ApiListener::Ptr listener = ApiListener::GetInstance();
if (!listener)
return;
Dictionary::Ptr message = MakeCheckResultMessage(checkable, cr);
listener->RelayMessage(origin, checkable, message, true);
}
Value ClusterEvents::CheckResultAPIHandler(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params)
{
Endpoint::Ptr endpoint = origin->FromClient->GetEndpoint();
if (!endpoint) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'check result' message from '" << origin->FromClient->GetIdentity() << "': Invalid endpoint origin (client not allowed).";
return Empty;
}
if (!params)
return Empty;
CheckResult::Ptr cr = new CheckResult();
Dictionary::Ptr vcr = params->Get("cr");
Array::Ptr vperf = vcr->Get("performance_data");
vcr->Remove("performance_data");
Deserialize(cr, params->Get("cr"), true);
Array::Ptr rperf = new Array();
if (vperf) {
ObjectLock olock(vperf);
BOOST_FOREACH(const Value& vp, vperf) {
Value p;
if (vp.IsObjectType<Dictionary>()) {
PerfdataValue::Ptr val = new PerfdataValue();
Deserialize(val, vp, true);
rperf->Add(val);
} else
rperf->Add(vp);
}
}
cr->SetPerformanceData(rperf);
Host::Ptr host = Host::GetByName(params->Get("host"));
if (!host)
return Empty;
Checkable::Ptr checkable;
if (params->Contains("service"))
checkable = host->GetServiceByShortName(params->Get("service"));
else
checkable = host;
if (!checkable)
return Empty;
if (origin->FromZone && !origin->FromZone->CanAccessObject(checkable) && endpoint != checkable->GetCommandEndpoint()) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'check result' message from '" << origin->FromClient->GetIdentity() << "': Unauthorized access.";
return Empty;
}
if (endpoint == checkable->GetCommandEndpoint())
checkable->ProcessCheckResult(cr);
else
checkable->ProcessCheckResult(cr, origin);
return Empty;
}
void ClusterEvents::NextCheckChangedHandler(const Checkable::Ptr& checkable, const MessageOrigin::Ptr& origin)
{
ApiListener::Ptr listener = ApiListener::GetInstance();
if (!listener)
return;
Host::Ptr host;
Service::Ptr service;
tie(host, service) = GetHostService(checkable);
Dictionary::Ptr params = new Dictionary();
params->Set("host", host->GetName());
if (service)
params->Set("service", service->GetShortName());
params->Set("next_check", checkable->GetNextCheck());
Dictionary::Ptr message = new Dictionary();
message->Set("jsonrpc", "2.0");
message->Set("method", "event::SetNextCheck");
message->Set("params", params);
listener->RelayMessage(origin, checkable, message, true);
}
Value ClusterEvents::NextCheckChangedAPIHandler(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params)
{
Endpoint::Ptr endpoint = origin->FromClient->GetEndpoint();
if (!endpoint) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'next check changed' message from '" << origin->FromClient->GetIdentity() << "': Invalid endpoint origin (client not allowed).";
return Empty;
}
if (!params)
return Empty;
Host::Ptr host = Host::GetByName(params->Get("host"));
if (!host)
return Empty;
Checkable::Ptr checkable;
if (params->Contains("service"))
checkable = host->GetServiceByShortName(params->Get("service"));
else
checkable = host;
if (!checkable)
return Empty;
if (origin->FromZone && !origin->FromZone->CanAccessObject(checkable)) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'next check changed' message from '" << origin->FromClient->GetIdentity() << "': Unauthorized access.";
return Empty;
}
checkable->SetNextCheck(params->Get("next_check"), false, origin);
return Empty;
}
void ClusterEvents::NextNotificationChangedHandler(const Notification::Ptr& notification, const MessageOrigin::Ptr& origin)
{
ApiListener::Ptr listener = ApiListener::GetInstance();
if (!listener)
return;
Dictionary::Ptr params = new Dictionary();
params->Set("notification", notification->GetName());
params->Set("next_notification", notification->GetNextNotification());
Dictionary::Ptr message = new Dictionary();
message->Set("jsonrpc", "2.0");
message->Set("method", "event::SetNextNotification");
message->Set("params", params);
listener->RelayMessage(origin, notification, message, true);
}
Value ClusterEvents::NextNotificationChangedAPIHandler(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params)
{
Endpoint::Ptr endpoint = origin->FromClient->GetEndpoint();
if (!endpoint) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'next notification changed' message from '" << origin->FromClient->GetIdentity() << "': Invalid endpoint origin (client not allowed).";
return Empty;
}
if (!params)
return Empty;
Notification::Ptr notification = Notification::GetByName(params->Get("notification"));
if (!notification)
return Empty;
if (origin->FromZone && !origin->FromZone->CanAccessObject(notification)) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'next notification changed' message from '" << origin->FromClient->GetIdentity() << "': Unauthorized access.";
return Empty;
}
notification->SetNextNotification(params->Get("next_notification"), false, origin);
return Empty;
}
void ClusterEvents::ForceNextCheckChangedHandler(const Checkable::Ptr& checkable, const MessageOrigin::Ptr& origin)
{
ApiListener::Ptr listener = ApiListener::GetInstance();
if (!listener)
return;
Host::Ptr host;
Service::Ptr service;
tie(host, service) = GetHostService(checkable);
Dictionary::Ptr params = new Dictionary();
params->Set("host", host->GetName());
if (service)
params->Set("service", service->GetShortName());
params->Set("forced", checkable->GetForceNextCheck());
Dictionary::Ptr message = new Dictionary();
message->Set("jsonrpc", "2.0");
message->Set("method", "event::SetForceNextCheck");
message->Set("params", params);
listener->RelayMessage(origin, checkable, message, true);
}
Value ClusterEvents::ForceNextCheckChangedAPIHandler(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params)
{
Endpoint::Ptr endpoint = origin->FromClient->GetEndpoint();
if (!endpoint) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'force next check changed' message from '" << origin->FromClient->GetIdentity() << "': Invalid endpoint origin (client not allowed).";
return Empty;
}
if (!params)
return Empty;
Host::Ptr host = Host::GetByName(params->Get("host"));
if (!host)
return Empty;
Checkable::Ptr checkable;
if (params->Contains("service"))
checkable = host->GetServiceByShortName(params->Get("service"));
else
checkable = host;
if (!checkable)
return Empty;
if (origin->FromZone && !origin->FromZone->CanAccessObject(checkable)) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'force next check' message from '" << origin->FromClient->GetIdentity() << "': Unauthorized access.";
return Empty;
}
checkable->SetForceNextCheck(params->Get("forced"), false, origin);
return Empty;
}
void ClusterEvents::ForceNextNotificationChangedHandler(const Checkable::Ptr& checkable, const MessageOrigin::Ptr& origin)
{
ApiListener::Ptr listener = ApiListener::GetInstance();
if (!listener)
return;
Host::Ptr host;
Service::Ptr service;
tie(host, service) = GetHostService(checkable);
Dictionary::Ptr params = new Dictionary();
params->Set("host", host->GetName());
if (service)
params->Set("service", service->GetShortName());
params->Set("forced", checkable->GetForceNextNotification());
Dictionary::Ptr message = new Dictionary();
message->Set("jsonrpc", "2.0");
message->Set("method", "event::SetForceNextNotification");
message->Set("params", params);
listener->RelayMessage(origin, checkable, message, true);
}
Value ClusterEvents::ForceNextNotificationChangedAPIHandler(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params)
{
Endpoint::Ptr endpoint = origin->FromClient->GetEndpoint();
if (!endpoint) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'force next notification changed' message from '" << origin->FromClient->GetIdentity() << "': Invalid endpoint origin (client not allowed).";
return Empty;
}
if (!params)
return Empty;
Host::Ptr host = Host::GetByName(params->Get("host"));
if (!host)
return Empty;
Checkable::Ptr checkable;
if (params->Contains("service"))
checkable = host->GetServiceByShortName(params->Get("service"));
else
checkable = host;
if (!checkable)
return Empty;
if (origin->FromZone && !origin->FromZone->CanAccessObject(checkable)) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'force next notification' message from '" << origin->FromClient->GetIdentity() << "': Unauthorized access.";
return Empty;
}
checkable->SetForceNextNotification(params->Get("forced"), false, origin);
return Empty;
}
void ClusterEvents::AcknowledgementSetHandler(const Checkable::Ptr& checkable,
const String& author, const String& comment, AcknowledgementType type,
bool notify, double expiry, const MessageOrigin::Ptr& origin)
{
ApiListener::Ptr listener = ApiListener::GetInstance();
if (!listener)
return;
Host::Ptr host;
Service::Ptr service;
tie(host, service) = GetHostService(checkable);
Dictionary::Ptr params = new Dictionary();
params->Set("host", host->GetName());
if (service)
params->Set("service", service->GetShortName());
params->Set("author", author);
params->Set("comment", comment);
params->Set("acktype", type);
params->Set("notify", notify);
params->Set("expiry", expiry);
Dictionary::Ptr message = new Dictionary();
message->Set("jsonrpc", "2.0");
message->Set("method", "event::SetAcknowledgement");
message->Set("params", params);
listener->RelayMessage(origin, checkable, message, true);
}
Value ClusterEvents::AcknowledgementSetAPIHandler(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params)
{
Endpoint::Ptr endpoint = origin->FromClient->GetEndpoint();
if (!endpoint) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'acknowledgement set' message from '" << origin->FromClient->GetIdentity() << "': Invalid endpoint origin (client not allowed).";
return Empty;
}
if (!params)
return Empty;
Host::Ptr host = Host::GetByName(params->Get("host"));
if (!host)
return Empty;
Checkable::Ptr checkable;
if (params->Contains("service"))
checkable = host->GetServiceByShortName(params->Get("service"));
else
checkable = host;
if (!checkable)
return Empty;
if (origin->FromZone && !origin->FromZone->CanAccessObject(checkable)) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'acknowledgement set' message from '" << origin->FromClient->GetIdentity() << "': Unauthorized access.";
return Empty;
}
checkable->AcknowledgeProblem(params->Get("author"), params->Get("comment"),
static_cast<AcknowledgementType>(static_cast<int>(params->Get("acktype"))),
params->Get("notify"), params->Get("expiry"), origin);
return Empty;
}
void ClusterEvents::AcknowledgementClearedHandler(const Checkable::Ptr& checkable, const MessageOrigin::Ptr& origin)
{
ApiListener::Ptr listener = ApiListener::GetInstance();
if (!listener)
return;
Host::Ptr host;
Service::Ptr service;
tie(host, service) = GetHostService(checkable);
Dictionary::Ptr params = new Dictionary();
params->Set("host", host->GetName());
if (service)
params->Set("service", service->GetShortName());
Dictionary::Ptr message = new Dictionary();
message->Set("jsonrpc", "2.0");
message->Set("method", "event::ClearAcknowledgement");
message->Set("params", params);
listener->RelayMessage(origin, checkable, message, true);
}
Value ClusterEvents::AcknowledgementClearedAPIHandler(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params)
{
Endpoint::Ptr endpoint = origin->FromClient->GetEndpoint();
if (!endpoint) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'acknowledgement cleared' message from '" << origin->FromClient->GetIdentity() << "': Invalid endpoint origin (client not allowed).";
return Empty;
}
if (!params)
return Empty;
Host::Ptr host = Host::GetByName(params->Get("host"));
if (!host)
return Empty;
Checkable::Ptr checkable;
if (params->Contains("service"))
checkable = host->GetServiceByShortName(params->Get("service"));
else
checkable = host;
if (!checkable)
return Empty;
if (origin->FromZone && !origin->FromZone->CanAccessObject(checkable)) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'acknowledgement cleared' message from '" << origin->FromClient->GetIdentity() << "': Unauthorized access.";
return Empty;
}
checkable->ClearAcknowledgement(origin);
return Empty;
}
Value ClusterEvents::ExecuteCommandAPIHandler(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params)
{
Endpoint::Ptr sourceEndpoint = origin->FromClient->GetEndpoint();
if (!sourceEndpoint || (origin->FromZone && !Zone::GetLocalZone()->IsChildOf(origin->FromZone))) {
Log(LogNotice, "ClusterEvents")
<< "Discarding 'execute command' message from '" << origin->FromClient->GetIdentity() << "': Invalid endpoint origin (client not allowed).";
return Empty;
}
ApiListener::Ptr listener = ApiListener::GetInstance();
if (!listener) {
Log(LogCritical, "ApiListener", "No instance available.");
return Empty;
}
if (!listener->GetAcceptCommands()) {
Log(LogWarning, "ApiListener")
<< "Ignoring command. '" << listener->GetName() << "' does not accept commands.";
Host::Ptr host = new Host();
Dictionary::Ptr attrs = new Dictionary();
attrs->Set("__name", params->Get("host"));
attrs->Set("type", "Host");
Deserialize(host, attrs, false, FAConfig);
if (params->Contains("service"))
host->SetExtension("agent_service_name", params->Get("service"));
CheckResult::Ptr cr = new CheckResult();
cr->SetState(ServiceUnknown);
cr->SetOutput("Endpoint '" + Endpoint::GetLocalEndpoint()->GetName() + "' does not accept commands.");
Dictionary::Ptr message = MakeCheckResultMessage(host, cr);
listener->SyncSendMessage(sourceEndpoint, message);
return Empty;
}
/* use a virtual host object for executing the command */
Host::Ptr host = new Host();
Dictionary::Ptr attrs = new Dictionary();
attrs->Set("__name", params->Get("host"));
attrs->Set("type", "Host");
Deserialize(host, attrs, false, FAConfig);
if (params->Contains("service"))
host->SetExtension("agent_service_name", params->Get("service"));
String command = params->Get("command");
String command_type = params->Get("command_type");
if (command_type == "check_command") {
if (!CheckCommand::GetByName(command)) {
CheckResult::Ptr cr = new CheckResult();
cr->SetState(ServiceUnknown);
cr->SetOutput("Check command '" + command + "' does not exist.");
Dictionary::Ptr message = MakeCheckResultMessage(host, cr);
listener->SyncSendMessage(sourceEndpoint, message);
return Empty;
}
} else if (command_type == "event_command") {
if (!EventCommand::GetByName(command)) {
Log(LogWarning, "ClusterEvents")
<< "Event command '" << command << "' does not exist.";
return Empty;
}
} else
return Empty;
attrs->Set(command_type, params->Get("command"));
attrs->Set("command_endpoint", sourceEndpoint->GetName());
Deserialize(host, attrs, false, FAConfig);
host->SetExtension("agent_check", true);
Dictionary::Ptr macros = params->Get("macros");
if (command_type == "check_command") {
try {
host->ExecuteRemoteCheck(macros);
} catch (const std::exception& ex) {
CheckResult::Ptr cr = new CheckResult();
cr->SetState(ServiceUnknown);
String output = "Exception occured while checking '" + host->GetName() + "': " + DiagnosticInformation(ex);
cr->SetOutput(output);
double now = Utility::GetTime();
cr->SetScheduleStart(now);
cr->SetScheduleEnd(now);
cr->SetExecutionStart(now);
cr->SetExecutionEnd(now);
Dictionary::Ptr message = MakeCheckResultMessage(host, cr);
listener->SyncSendMessage(sourceEndpoint, message);
Log(LogCritical, "checker", output);
}
} else if (command_type == "event_command") {
host->ExecuteEventHandler(macros, true);
}
return Empty;
}
void ClusterEvents::RepositoryTimerHandler(void)
{
ApiListener::Ptr listener = ApiListener::GetInstance();
if (!listener)
return;
Dictionary::Ptr repository = new Dictionary();
BOOST_FOREACH(const Host::Ptr& host, ConfigType::GetObjectsByType<Host>()) {
Array::Ptr services = new Array();
BOOST_FOREACH(const Service::Ptr& service, host->GetServices()) {
services->Add(service->GetShortName());
}
repository->Set(host->GetName(), services);
}
Endpoint::Ptr my_endpoint = Endpoint::GetLocalEndpoint();
if (!my_endpoint) {
Log(LogWarning, "ClusterEvents", "No local endpoint defined. Bailing out.");
return;
}
Zone::Ptr my_zone = my_endpoint->GetZone();
if (!my_zone)
return;
Dictionary::Ptr params = new Dictionary();
params->Set("seen", Utility::GetTime());
params->Set("endpoint", my_endpoint->GetName());
params->Set("zone", my_zone->GetName());
params->Set("repository", repository);
Dictionary::Ptr message = new Dictionary();
message->Set("jsonrpc", "2.0");
message->Set("method", "event::UpdateRepository");
message->Set("params", params);
listener->RelayMessage(MessageOrigin::Ptr(), my_zone, message, false);
}
String ClusterEvents::GetRepositoryDir(void)
{
return Application::GetLocalStateDir() + "/lib/icinga2/api/repository/";
}
Value ClusterEvents::UpdateRepositoryAPIHandler(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params)
{
if (!params)
return Empty;
Value vrepository = params->Get("repository");
if (vrepository.IsEmpty() || !vrepository.IsObjectType<Dictionary>())
return Empty;
String repositoryFile = GetRepositoryDir() + SHA256(params->Get("endpoint")) + ".repo";
String repositoryTempFile = repositoryFile + ".tmp";
std::ofstream fp(repositoryTempFile.CStr(), std::ofstream::out | std::ostream::trunc);
fp << JsonEncode(params);
fp.close();
#ifdef _WIN32
_unlink(repositoryFile.CStr());
#endif /* _WIN32 */
if (rename(repositoryTempFile.CStr(), repositoryFile.CStr()) < 0) {
BOOST_THROW_EXCEPTION(posix_error()
<< boost::errinfo_api_function("rename")
<< boost::errinfo_errno(errno)
<< boost::errinfo_file_name(repositoryTempFile));
}
ApiListener::Ptr listener = ApiListener::GetInstance();
if (!listener)
return Empty;
Dictionary::Ptr message = new Dictionary();
message->Set("jsonrpc", "2.0");
message->Set("method", "event::UpdateRepository");
message->Set("params", params);
listener->RelayMessage(origin, Zone::GetLocalZone(), message, true);
return Empty;
}