130 lines
4.0 KiB
C++
130 lines
4.0 KiB
C++
// Copyright (c) 2020 Michael Fabian Dirks <info@xaymar.com>
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#pragma once
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#include <cinttypes>
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#include <cstring>
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#include <functional>
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#include <map>
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#include <string>
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#include <vector>
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extern "C" {
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#ifndef NOMINMAX
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#define NOMINMAX
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#endif
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#include <curl/curl.h>
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}
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namespace util {
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typedef std::function<size_t(void*, size_t, size_t)> curl_io_callback_t;
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typedef std::function<int32_t(uint64_t, uint64_t, uint64_t, uint64_t)> curl_xferinfo_callback_t;
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typedef std::function<void(CURL*, curl_infotype, char*, size_t)> curl_debug_callback_t;
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class curl {
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CURL* _curl;
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curl_io_callback_t _read_callback;
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curl_io_callback_t _write_callback;
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curl_xferinfo_callback_t _xferinfo_callback;
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curl_debug_callback_t _debug_callback;
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std::map<std::string, std::string> _headers;
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static int32_t debug_helper(CURL* handle, curl_infotype type, char* data, size_t size, util::curl* userptr);
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static size_t read_helper(void*, size_t, size_t, util::curl*);
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static size_t write_helper(void*, size_t, size_t, util::curl*);
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static int32_t xferinfo_callback(util::curl*, curl_off_t, curl_off_t, curl_off_t, curl_off_t);
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public:
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curl();
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~curl();
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template<typename _Ty1>
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CURLcode set_option(CURLoption opt, _Ty1 value)
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{
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return curl_easy_setopt(_curl, opt, value);
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};
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CURLcode set_option(CURLoption opt, const bool value)
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{
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// CURL does not seem to accept boolean, so we err on the side of safety here.
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return curl_easy_setopt(_curl, opt, value ? 1 : 0);
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};
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CURLcode set_option(CURLoption opt, const std::string value)
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{
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return curl_easy_setopt(_curl, opt, value.c_str());
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};
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CURLcode set_option(CURLoption opt, const std::string_view value)
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{
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return curl_easy_setopt(_curl, opt, value.data());
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};
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template<typename _Ty1>
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CURLcode get_info(CURLINFO info, _Ty1& value)
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{
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return curl_easy_getinfo(_curl, info, &value);
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};
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CURLcode get_info(CURLINFO info, std::vector<char>& value)
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{
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char* buffer;
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if (CURLcode res = curl_easy_getinfo(_curl, info, &buffer); res != CURLE_OK) {
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return res;
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}
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size_t buffer_len = strnlen(buffer, size_t(0xFFFF));
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value.resize(buffer_len);
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memcpy(value.data(), buffer, value.size());
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return CURLE_OK;
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};
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CURLcode get_info(CURLINFO info, std::string& value)
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{
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std::vector<char> buffer;
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if (CURLcode res = get_info(info, buffer); res != CURLE_OK) {
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return res;
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}
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value = std::string(buffer.data(), buffer.data() + strlen(buffer.data()));
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return CURLE_OK;
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};
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void clear_headers();
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void clear_header(std::string header);
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void set_header(std::string header, std::string value);
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CURLcode perform();
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void reset();
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public /* Helpers */:
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CURLcode set_read_callback(curl_io_callback_t cb);
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CURLcode set_write_callback(curl_io_callback_t cb);
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CURLcode set_xferinfo_callback(curl_xferinfo_callback_t cb);
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CURLcode set_debug_callback(curl_debug_callback_t cb);
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};
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} // namespace util
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