donau_api_curl_defaults.c (2105B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2014-2018, 2021 Taler Systems SA 4 5 TALER is free software; you can redistribute it and/or modify it under the 6 terms of the GNU General Public License as published by the Free Software 7 Foundation; either version 3, or (at your option) any later version. 8 9 TALER is distributed in the hope that it will be useful, but WITHOUT ANY 10 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR 11 A PARTICULAR PURPOSE. See the GNU General Public License for more details. 12 13 You should have received a copy of the GNU General Public License along with 14 TALER; see the file COPYING. If not, see 15 <http://www.gnu.org/licenses/> 16 */ 17 /** 18 * @file lib/donau_api_curl_defaults.c 19 * @brief curl easy handle defaults 20 * @author Florian Dold 21 * @author Lukas Matyja 22 */ 23 24 #include "donau_api_curl_defaults.h" 25 26 27 CURL * 28 DONAU_curl_easy_get_ (const char *url) 29 { 30 CURL *eh; 31 32 eh = curl_easy_init (); 33 if (NULL == eh) 34 { 35 GNUNET_break (0); 36 return NULL; 37 } 38 GNUNET_assert (CURLE_OK == 39 curl_easy_setopt (eh, 40 CURLOPT_URL, 41 url)); 42 GNUNET_assert (CURLE_OK == 43 curl_easy_setopt (eh, 44 CURLOPT_FOLLOWLOCATION, 45 1L)); 46 /* Enable compression (using whatever curl likes), see 47 https://curl.se/libcurl/c/CURLOPT_ACCEPT_ENCODING.html */ 48 GNUNET_break (CURLE_OK == 49 curl_easy_setopt (eh, 50 CURLOPT_ACCEPT_ENCODING, 51 "")); 52 /* limit MAXREDIRS to 5 as a simple security measure against 53 a potential infinite loop caused by a malicious target */ 54 GNUNET_assert (CURLE_OK == 55 curl_easy_setopt (eh, 56 CURLOPT_MAXREDIRS, 57 5L)); 58 GNUNET_assert (CURLE_OK == 59 curl_easy_setopt (eh, 60 CURLOPT_TCP_FASTOPEN, 61 1L)); 62 return eh; 63 }