1 /* 2 * MIT License 3 * 4 * Copyright (c) 2018-2019 powerdns.com bv 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 25 #pragma once 26 #include <string> 27 #include <curl/curl.h> 28 #include "iputils.hh" 29 // turns out 'CURL' is currently typedef for void which means we can't easily forward declare it 30 31 class MiniCurl 32 { 33 public: 34 using MiniCurlHeaders = std::map<std::string, std::string>; 35 36 static void init(); 37 38 MiniCurl(const string& useragent="MiniCurl/0.0"); 39 ~MiniCurl(); 40 MiniCurl& operator=(const MiniCurl&) = delete; 41 std::string getURL(const std::string& str, const ComboAddress* rem=nullptr, const ComboAddress* src=nullptr, int timeout = 2); 42 std::string postURL(const std::string& str, const std::string& postdata, MiniCurlHeaders& headers, int timeout = 2, bool fastopen = false); 43 private: 44 CURL *d_curl; 45 static size_t write_callback(char *ptr, size_t size, size_t nmemb, void *userdata); 46 std::string d_data; 47 struct curl_slist* d_header_list = nullptr; 48 void setupURL(const std::string& str, const ComboAddress* rem=nullptr, const ComboAddress* src=nullptr, int timeout = 2, bool fastopen = false); 49 void setHeaders(const MiniCurlHeaders& headers); 50 void clearHeaders(); 51 }; 52