icinga2/lib/remote/variablequeryhandler.cpp

125 lines
3.9 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/variablequeryhandler.hpp"
#include "remote/httputility.hpp"
#include "remote/filterutility.hpp"
#include "base/configtype.hpp"
#include "base/scriptglobal.hpp"
#include "base/logger.hpp"
#include "base/serializer.hpp"
#include "base/namespace.hpp"
#include <set>
using namespace icinga;
REGISTER_URLHANDLER("/v1/variables", VariableQueryHandler);
class VariableTargetProvider final : public TargetProvider
{
public:
DECLARE_PTR_TYPEDEFS(VariableTargetProvider);
static Dictionary::Ptr GetTargetForVar(const String& name, const Value& value)
{
return new Dictionary({
{ "name", name },
{ "type", value.GetReflectionType()->GetName() },
{ "value", value }
});
}
void FindTargets(const String& type,
const std::function<void (const Value&)>& addTarget) const override
{
{
Namespace::Ptr globals = ScriptGlobal::GetGlobals();
ObjectLock olock(globals);
for (const Namespace::Pair& kv : globals) {
addTarget(GetTargetForVar(kv.first, kv.second->Get()));
}
}
}
Value GetTargetByName(const String& type, const String& name) const override
{
return GetTargetForVar(name, ScriptGlobal::Get(name));
}
bool IsValidType(const String& type) const override
{
return type == "Variable";
}
String GetPluralName(const String& type) const override
{
return "variables";
}
};
bool VariableQueryHandler::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("Variable");
qd.Permission = "variables";
qd.Provider = new VariableTargetProvider();
params->Set("type", "Variable");
if (request.RequestUrl->GetPath().size() >= 3)
params->Set("variable", request.RequestUrl->GetPath()[2]);
std::vector<Value> objs;
try {
objs = FilterUtility::GetFilterTargets(qd, params, user, "variable");
} catch (const std::exception& ex) {
HttpUtility::SendJsonError(response, params, 404,
"No variables found.",
DiagnosticInformation(ex));
return true;
}
ArrayData results;
for (const Dictionary::Ptr& var : objs) {
results.emplace_back(new Dictionary({
{ "name", var->Get("name") },
{ "type", var->Get("type") },
{ "value", Serialize(var->Get("value"), 0) }
}));
}
Dictionary::Ptr result = new Dictionary({
{ "results", new Array(std::move(results)) }
});
response.SetStatus(200, "OK");
HttpUtility::SendJsonBody(response, params, result);
return true;
}