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/*
Copyright (C) 2021 The Falco Authors.
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.
*/
//
// k8s_api_handler.cpp
//
#if !defined(CYGWING_AGENT) && !defined(_WIN32)
#ifdef HAS_CAPTURE
#include "k8s_api_handler.h"
#include "sinsp.h"
#include "sinsp_int.h"
// filters normalize state and event JSONs, so they can be processed generically:
// event is turned into a single-entry array, state is turned into an array of ADDED events
k8s_api_handler::k8s_api_handler(collector_ptr_t collector,
const std::string& url,
const std::string& path,
const std::string& filter,
const std::string& http_version
#ifdef HAS_CAPTURE
,ssl_ptr_t ssl
,bt_ptr_t bt
,bool blocking_socket
,uint32_t data_max_b
,uint32_t data_chunk_wait_us
#endif // HAS_CAPTURE
):
k8s_handler("k8s_api_handler", false,
#ifdef HAS_CAPTURE
url, path, filter, ".", "", collector, http_version, 1000L, ssl, bt,
false, true, std::make_shared<k8s_dummy_handler>(), blocking_socket,
#endif // HAS_CAPTURE
~0, nullptr, data_max_b, data_chunk_wait_us)
{
}
k8s_api_handler::~k8s_api_handler()
{
}
bool k8s_api_handler::handle_component(const Json::Value& json, const msg_data* data)
{
m_error = false;
if(!json.isNull())
{
if(json.isArray())
{
for(const auto& version : json)
{
if(version.isConvertibleTo(Json::stringValue))
{
m_extensions.push_back(version.asString());
}
else
{
g_logger.log("K8s API handler error: could not extract API versions or extensions from JSON.",
sinsp_logger::SEV_ERROR);
m_error = true;
return false;
}
}
}
else if(json.isConvertibleTo(Json::stringValue))
{
m_extensions.push_back(json.asString());
}
else
{
g_logger.log("K8s API handler error: could not extract API versions or extensions from JSON.",
sinsp_logger::SEV_ERROR);
m_error = true;
return false;
}
m_data_received = true;
}
else
{
g_logger.log("K8s API handler error: json is null.", sinsp_logger::SEV_ERROR);
m_error = true;
return false;
}
return true;
}
void k8s_api_handler::handle_json(Json::Value&& root)
{
if(g_logger.get_severity() >= sinsp_logger::SEV_TRACE)
{
g_logger.log("K8S API handler [" + json_as_string(root) + "] reply:\n",
sinsp_logger::SEV_TRACE);
}
handle_component(root);
}
bool k8s_api_handler::has(const std::string& version) const
{
for(const auto& ver : m_extensions)
{
if(ver == version)
{
return true;
}
}
return false;
}
#endif // HAS_CAPTURE
#endif // CYGWING_AGENT
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