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arangodb/arangod/RestHandler/RestMetricsHandler.cpp

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2.4 KiB
C++

////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2019 ArangoDB GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Kaveh Vahedipour
////////////////////////////////////////////////////////////////////////////////
#include "RestMetricsHandler.h"
#include "Agency/AgencyComm.h"
#include "Agency/AgencyFeature.h"
#include "Agency/Agent.h"
#include "ApplicationFeatures/ApplicationServer.h"
#include "Cluster/ServerState.h"
#include "GeneralServer/ServerSecurityFeature.h"
#include "Rest/Version.h"
#include "RestServer/ServerFeature.h"
#include <velocypack/Builder.h>
#include <velocypack/velocypack-aliases.h>
using namespace arangodb;
using namespace arangodb::basics;
using namespace arangodb::rest;
////////////////////////////////////////////////////////////////////////////////
/// @brief ArangoDB server
////////////////////////////////////////////////////////////////////////////////
RestMetricsHandler::RestMetricsHandler(
application_features::ApplicationServer& server,
GeneralRequest* request, GeneralResponse* response)
: RestBaseHandler(server, request, response) {}
RestStatus RestMetricsHandler::execute() {
auto& server = application_features::ApplicationServer::server();
ServerSecurityFeature& security = server.getFeature<ServerSecurityFeature>();
if (!security.canAccessHardenedApi()) {
// dont leak information about server internals here
generateError(rest::ResponseCode::FORBIDDEN, TRI_ERROR_FORBIDDEN);
return RestStatus::DONE;
}
MetricsFeature& metrics = server.getFeature<MetricsFeature>();
std::string result;
metrics.toPrometheus(result);
_response->setResponseCode(rest::ResponseCode::OK);
_response->setContentType(rest::ContentType::TEXT);
_response->addRawPayload(VPackStringRef(result));
return RestStatus::DONE;
}