mirror of https://github.com/Icinga/icinga2.git
131 lines
3.6 KiB
C++
131 lines
3.6 KiB
C++
/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
|
|
|
|
#include "icinga/service.hpp"
|
|
#include "config/configitembuilder.hpp"
|
|
#include "config/applyrule.hpp"
|
|
#include "base/initialize.hpp"
|
|
#include "base/configtype.hpp"
|
|
#include "base/logger.hpp"
|
|
#include "base/context.hpp"
|
|
#include "base/workqueue.hpp"
|
|
#include "base/exception.hpp"
|
|
|
|
using namespace icinga;
|
|
|
|
INITIALIZE_ONCE([]() {
|
|
ApplyRule::RegisterType("Service", { "Host" });
|
|
});
|
|
|
|
bool Service::EvaluateApplyRuleInstance(const Host::Ptr& host, const String& name, ScriptFrame& frame, const ApplyRule& rule)
|
|
{
|
|
if (!rule.EvaluateFilter(frame))
|
|
return false;
|
|
|
|
DebugInfo di = rule.GetDebugInfo();
|
|
|
|
#ifdef _DEBUG
|
|
Log(LogDebug, "Service")
|
|
<< "Applying service '" << name << "' to host '" << host->GetName() << "' for rule " << di;
|
|
#endif /* _DEBUG */
|
|
|
|
ConfigItemBuilder builder{di};
|
|
builder.SetType(Service::TypeInstance);
|
|
builder.SetName(name);
|
|
builder.SetScope(frame.Locals->ShallowClone());
|
|
builder.SetIgnoreOnError(rule.GetIgnoreOnError());
|
|
|
|
builder.AddExpression(new SetExpression(MakeIndexer(ScopeThis, "host_name"), OpSetLiteral, MakeLiteral(host->GetName()), di));
|
|
|
|
builder.AddExpression(new SetExpression(MakeIndexer(ScopeThis, "name"), OpSetLiteral, MakeLiteral(name), di));
|
|
|
|
String zone = host->GetZoneName();
|
|
|
|
if (!zone.IsEmpty())
|
|
builder.AddExpression(new SetExpression(MakeIndexer(ScopeThis, "zone"), OpSetLiteral, MakeLiteral(zone), di));
|
|
|
|
builder.AddExpression(new SetExpression(MakeIndexer(ScopeThis, "package"), OpSetLiteral, MakeLiteral(rule.GetPackage()), di));
|
|
|
|
builder.AddExpression(new OwnedExpression(rule.GetExpression()));
|
|
|
|
builder.AddExpression(new ImportDefaultTemplatesExpression());
|
|
|
|
ConfigItem::Ptr serviceItem = builder.Compile();
|
|
serviceItem->Register();
|
|
|
|
return true;
|
|
}
|
|
|
|
bool Service::EvaluateApplyRule(const Host::Ptr& host, const ApplyRule& rule)
|
|
{
|
|
DebugInfo di = rule.GetDebugInfo();
|
|
|
|
std::ostringstream msgbuf;
|
|
msgbuf << "Evaluating 'apply' rule (" << di << ")";
|
|
CONTEXT(msgbuf.str());
|
|
|
|
ScriptFrame frame(true);
|
|
if (rule.GetScope())
|
|
rule.GetScope()->CopyTo(frame.Locals);
|
|
frame.Locals->Set("host", host);
|
|
|
|
Value vinstances;
|
|
|
|
if (rule.GetFTerm()) {
|
|
try {
|
|
vinstances = rule.GetFTerm()->Evaluate(frame);
|
|
} catch (const std::exception&) {
|
|
/* Silently ignore errors here and assume there are no instances. */
|
|
return false;
|
|
}
|
|
} else {
|
|
vinstances = new Array({ "" });
|
|
}
|
|
|
|
bool match = false;
|
|
|
|
if (vinstances.IsObjectType<Array>()) {
|
|
if (!rule.GetFVVar().IsEmpty())
|
|
BOOST_THROW_EXCEPTION(ScriptError("Dictionary iterator requires value to be a dictionary.", di));
|
|
|
|
Array::Ptr arr = vinstances;
|
|
|
|
ObjectLock olock(arr);
|
|
for (const Value& instance : arr) {
|
|
String name = rule.GetName();
|
|
|
|
if (!rule.GetFKVar().IsEmpty()) {
|
|
frame.Locals->Set(rule.GetFKVar(), instance);
|
|
name += instance;
|
|
}
|
|
|
|
if (EvaluateApplyRuleInstance(host, name, frame, rule))
|
|
match = true;
|
|
}
|
|
} else if (vinstances.IsObjectType<Dictionary>()) {
|
|
if (rule.GetFVVar().IsEmpty())
|
|
BOOST_THROW_EXCEPTION(ScriptError("Array iterator requires value to be an array.", di));
|
|
|
|
Dictionary::Ptr dict = vinstances;
|
|
|
|
for (const String& key : dict->GetKeys()) {
|
|
frame.Locals->Set(rule.GetFKVar(), key);
|
|
frame.Locals->Set(rule.GetFVVar(), dict->Get(key));
|
|
|
|
if (EvaluateApplyRuleInstance(host, rule.GetName() + key, frame, rule))
|
|
match = true;
|
|
}
|
|
}
|
|
|
|
return match;
|
|
}
|
|
|
|
void Service::EvaluateApplyRules(const Host::Ptr& host)
|
|
{
|
|
for (ApplyRule& rule : ApplyRule::GetRules("Service")) {
|
|
CONTEXT("Evaluating 'apply' rules for host '" + host->GetName() + "'");
|
|
|
|
if (EvaluateApplyRule(host, rule))
|
|
rule.AddMatch();
|
|
}
|
|
}
|