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new(userspace/falco): http output C++ impl

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Signed-off-by: Leonardo Grasso <me@leonardograsso.com>
This commit is contained in:
Leonardo Grasso 2020-09-22 17:44:57 +02:00 committed by poiana
parent 6ecc691c68
commit aa8edadf68
2 changed files with 89 additions and 0 deletions
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54
userspace/falco/falco_outputs_http.cpp Normal file
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/*
Copyright (C) 2020 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.
*/
#include "falco_outputs_http.h"
#include "logger.h"
#include "banned.h" // This raises a compilation error when certain functions are used
void falco::outputs::output_http::output_event(gen_event *evt, std::string &rule, std::string &source,
falco_common::priority_type priority, std::string &format, std::string &msg)
{
output_msg(priority, msg);
}
void falco::outputs::output_http::output_msg(falco_common::priority_type priority, std::string &msg)
{
CURL *curl = NULL;
CURLcode res = CURLE_FAILED_INIT;
struct curl_slist *slist1;
slist1 = NULL;
curl = curl_easy_init();
if(curl)
{
slist1 = curl_slist_append(slist1, "Content-Type: application/json");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist1);
curl_easy_setopt(curl, CURLOPT_URL, m_oc.options["url"].c_str());
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, msg.c_str());
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, -1L);
res = curl_easy_perform(curl);
if(res != CURLE_OK)
{
falco_logger::log(LOG_ERR, "libcurl error: " + string(curl_easy_strerror(res)));
}
curl_easy_cleanup(curl);
curl = NULL;
curl_slist_free_all(slist1);
slist1 = NULL;
}
}

35
userspace/falco/falco_outputs_http.h Normal file
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/*
Copyright (C) 2020 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.
*/
#pragma once
#include "falco_output.h"
namespace falco
{
namespace outputs
{
class output_http : public output
{
void output_event(gen_event *evt, std::string &rule, std::string &source,
falco_common::priority_type priority, std::string &format, std::string &msg);
void output_msg(falco_common::priority_type priority, std::string &msg);
};
} // namespace outputs
} // namespace falco