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/* This file is part of mastodonpp.
* Copyright © 2020 tastytea <tastytea@tastytea.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, version 3.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "curl_wrapper.hpp"
#include "exceptions.hpp"
#include "log.hpp"
#include <cstdint>
namespace mastodonpp
{
using std::uint8_t;
using std::uint16_t;
CURLWrapper::CURLWrapper()
: _curl_buffer_error{}
{
curl_global_init(CURL_GLOBAL_ALL); // NOLINT(hicpp-signed-bitwise)
_connection = curl_easy_init();
setup_curl();
}
CURLWrapper::~CURLWrapper() noexcept
{
curl_easy_cleanup(_connection);
curl_global_cleanup();
}
answer_type CURLWrapper::make_request(const http_method &method,
const string_view &uri)
{
debuglog << "Making request to: " << uri << '\n';
CURLcode code;
switch (method)
{
case http_method::GET:
{
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
code = curl_easy_setopt(_connection, CURLOPT_HTTPGET, 1L);
break;
}
case http_method::POST:
{
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
code = curl_easy_setopt(_connection, CURLOPT_POST, 1L);
break;
}
case http_method::PATCH:
{
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
code = curl_easy_setopt(_connection, CURLOPT_CUSTOMREQUEST, "PATCH");
break;
}
case http_method::DELETE:
{
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
code = curl_easy_setopt(_connection, CURLOPT_CUSTOMREQUEST, "DELETE");
break;
}
}
if (code != CURLE_OK)
{
throw CURLException{code, "Failed to set HTTP method",
_curl_buffer_error};
}
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
code = curl_easy_setopt(_connection, CURLOPT_URL, uri.data());
if (code != CURLE_OK)
{
throw CURLException{code, "Failed to set URI", _curl_buffer_error};
}
answer_type answer;
code = curl_easy_perform(_connection);
if (code == CURLE_OK)
{
long http_status; // NOLINT(google-runtime-int)
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
curl_easy_getinfo(_connection, CURLINFO_RESPONSE_CODE, &http_status);
answer.http_status = static_cast<uint16_t>(http_status);
debuglog << "HTTP status code: " << http_status << '\n';
answer.headers = _curl_buffer_headers;
answer.body = _curl_buffer_body;
}
else
{
answer.curl_error_code = static_cast<uint8_t>(code);
answer.error_message = _curl_buffer_error;
debuglog << "libcurl error: " << code << '\n';
debuglog << _curl_buffer_error << '\n';
}
return answer;
}
int CURLWrapper::writer(char *data, size_t size, size_t nmemb,
string *writerData)
{
if(writerData == nullptr)
{
return 0;
}
writerData->append(data, size*nmemb);
return static_cast<int>(size * nmemb);
}
void CURLWrapper::setup_curl()
{
if (_connection == nullptr)
{
throw CURLException{CURLE_FAILED_INIT, "Failed to initialize curl."};
}
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
CURLcode code{curl_easy_setopt(_connection, CURLOPT_ERRORBUFFER,
_curl_buffer_error)};
if (code != CURLE_OK)
{
throw CURLException{code, "Failed to set error buffer."};
}
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
code = curl_easy_setopt(_connection, CURLOPT_WRITEFUNCTION, writer);
if (code != CURLE_OK)
{
throw CURLException{code, "Failed to set writer", _curl_buffer_error};
}
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
code = curl_easy_setopt(_connection, CURLOPT_HEADERDATA,
&_curl_buffer_headers);
if (code != CURLE_OK)
{
throw CURLException{code, "Failed to set header data",
_curl_buffer_error};
}
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
code = curl_easy_setopt(_connection, CURLOPT_WRITEDATA, &_curl_buffer_body);
if (code != CURLE_OK)
{
throw CURLException{code, "Failed to set write data",
_curl_buffer_error};
}
}
} // namespace mastodonpp
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