icinga2/lib/remote/statushandler.cpp

127 lines
4.0 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2018 Icinga Development Team (https://www.icinga.com/) *
* *
* 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 "remote/statushandler.hpp"
#include "remote/httputility.hpp"
#include "remote/filterutility.hpp"
#include "base/serializer.hpp"
#include "base/statsfunction.hpp"
#include "base/namespace.hpp"
using namespace icinga;
REGISTER_URLHANDLER("/v1/status", StatusHandler);
class StatusTargetProvider final : public TargetProvider
{
public:
DECLARE_PTR_TYPEDEFS(StatusTargetProvider);
void FindTargets(const String& type,
const std::function<void (const Value&)>& addTarget) const override
{
Namespace::Ptr statsFunctions = ScriptGlobal::Get("StatsFunctions", &Empty);
if (statsFunctions) {
ObjectLock olock(statsFunctions);
for (const Namespace::Pair& kv : statsFunctions)
addTarget(GetTargetByName("Status", kv.first));
}
}
Value GetTargetByName(const String& type, const String& name) const override
{
Namespace::Ptr statsFunctions = ScriptGlobal::Get("StatsFunctions", &Empty);
if (!statsFunctions)
BOOST_THROW_EXCEPTION(std::invalid_argument("No status functions are available."));
Value vfunc;
if (!statsFunctions->Get(name, &vfunc))
BOOST_THROW_EXCEPTION(std::invalid_argument("Invalid status function name."));
Function::Ptr func = vfunc;
if (!func)
BOOST_THROW_EXCEPTION(std::invalid_argument("Invalid status function name."));
Dictionary::Ptr status = new Dictionary();
Array::Ptr perfdata = new Array();
func->Invoke({ status, perfdata });
return new Dictionary({
{ "name", name },
{ "status", status },
{ "perfdata", Serialize(perfdata, FAState) }
});
}
bool IsValidType(const String& type) const override
{
return type == "Status";
}
String GetPluralName(const String& type) const override
{
return "statuses";
}
};
bool StatusHandler::HandleRequest(const ApiUser::Ptr& user, HttpRequest& request, HttpResponse& response, const Dictionary::Ptr& params)
{
if (request.RequestUrl->GetPath().size() > 3)
return false;
if (request.RequestMethod != "GET")
return false;
QueryDescription qd;
qd.Types.insert("Status");
qd.Provider = new StatusTargetProvider();
qd.Permission = "status/query";
params->Set("type", "Status");
if (request.RequestUrl->GetPath().size() >= 3)
params->Set("status", request.RequestUrl->GetPath()[2]);
std::vector<Value> objs;
try {
objs = FilterUtility::GetFilterTargets(qd, params, user);
} catch (const std::exception& ex) {
HttpUtility::SendJsonError(response, params, 404,
"No objects found.",
DiagnosticInformation(ex));
return true;
}
Dictionary::Ptr result = new Dictionary({
{ "results", new Array(std::move(objs)) }
});
response.SetStatus(200, "OK");
HttpUtility::SendJsonBody(response, params, result);
return true;
}